From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/tools/testing/selftests/bpf/test_verifier.c | 13463 +++--------------------------------------------------------
1 files changed, 732 insertions(+), 12,731 deletions(-)
diff --git a/kernel/tools/testing/selftests/bpf/test_verifier.c b/kernel/tools/testing/selftests/bpf/test_verifier.c
index 858e551..961c17b 100644
--- a/kernel/tools/testing/selftests/bpf/test_verifier.c
+++ b/kernel/tools/testing/selftests/bpf/test_verifier.c
@@ -1,12 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Testsuite for eBPF verifier
*
* Copyright (c) 2014 PLUMgrid, http://plumgrid.com
* Copyright (c) 2017 Facebook
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * Copyright (c) 2018 Covalent IO, Inc. http://covalent.io
*/
#include <endian.h>
@@ -22,6 +20,7 @@
#include <stdbool.h>
#include <sched.h>
#include <limits.h>
+#include <assert.h>
#include <sys/capability.h>
@@ -30,8 +29,10 @@
#include <linux/bpf_perf_event.h>
#include <linux/bpf.h>
#include <linux/if_ether.h>
+#include <linux/btf.h>
#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
#ifdef HAVE_GENHDR
# include "autoconf.h"
@@ -43,11 +44,14 @@
#include "bpf_rlimit.h"
#include "bpf_rand.h"
#include "bpf_util.h"
+#include "test_btf.h"
#include "../../../include/linux/filter.h"
#define MAX_INSNS BPF_MAXINSNS
+#define MAX_TEST_INSNS 1000000
#define MAX_FIXUPS 8
-#define MAX_NR_MAPS 8
+#define MAX_NR_MAPS 21
+#define MAX_TEST_RUNS 8
#define POINTER_VALUE 0xcafe4all
#define TEST_DATA_LEN 64
@@ -56,30 +60,62 @@
#define UNPRIV_SYSCTL "kernel/unprivileged_bpf_disabled"
static bool unpriv_disabled = false;
+static int skips;
+static bool verbose = false;
struct bpf_test {
const char *descr;
struct bpf_insn insns[MAX_INSNS];
- int fixup_map1[MAX_FIXUPS];
- int fixup_map2[MAX_FIXUPS];
- int fixup_map3[MAX_FIXUPS];
- int fixup_map4[MAX_FIXUPS];
+ struct bpf_insn *fill_insns;
+ int fixup_map_hash_8b[MAX_FIXUPS];
+ int fixup_map_hash_48b[MAX_FIXUPS];
+ int fixup_map_hash_16b[MAX_FIXUPS];
+ int fixup_map_array_48b[MAX_FIXUPS];
+ int fixup_map_sockmap[MAX_FIXUPS];
+ int fixup_map_sockhash[MAX_FIXUPS];
+ int fixup_map_xskmap[MAX_FIXUPS];
+ int fixup_map_stacktrace[MAX_FIXUPS];
int fixup_prog1[MAX_FIXUPS];
int fixup_prog2[MAX_FIXUPS];
int fixup_map_in_map[MAX_FIXUPS];
int fixup_cgroup_storage[MAX_FIXUPS];
+ int fixup_percpu_cgroup_storage[MAX_FIXUPS];
+ int fixup_map_spin_lock[MAX_FIXUPS];
+ int fixup_map_array_ro[MAX_FIXUPS];
+ int fixup_map_array_wo[MAX_FIXUPS];
+ int fixup_map_array_small[MAX_FIXUPS];
+ int fixup_sk_storage_map[MAX_FIXUPS];
+ int fixup_map_event_output[MAX_FIXUPS];
+ int fixup_map_reuseport_array[MAX_FIXUPS];
+ int fixup_map_ringbuf[MAX_FIXUPS];
const char *errstr;
const char *errstr_unpriv;
- uint32_t retval, retval_unpriv;
+ uint32_t insn_processed;
+ int prog_len;
enum {
UNDEF,
ACCEPT,
- REJECT
+ REJECT,
+ VERBOSE_ACCEPT,
} result, result_unpriv;
enum bpf_prog_type prog_type;
uint8_t flags;
- __u8 data[TEST_DATA_LEN];
void (*fill_helper)(struct bpf_test *self);
+ int runs;
+#define bpf_testdata_struct_t \
+ struct { \
+ uint32_t retval, retval_unpriv; \
+ union { \
+ __u8 data[TEST_DATA_LEN]; \
+ __u64 data64[TEST_DATA_LEN / 8]; \
+ }; \
+ }
+ union {
+ bpf_testdata_struct_t;
+ bpf_testdata_struct_t retvals[MAX_TEST_RUNS];
+ };
+ enum bpf_attach_type expected_attach_type;
+ const char *kfunc;
};
/* Note we want this to be 64 bit aligned so that the end of our array is
@@ -99,49 +135,61 @@
static void bpf_fill_ld_abs_vlan_push_pop(struct bpf_test *self)
{
- /* test: {skb->data[0], vlan_push} x 68 + {skb->data[0], vlan_pop} x 68 */
+ /* test: {skb->data[0], vlan_push} x 51 + {skb->data[0], vlan_pop} x 51 */
#define PUSH_CNT 51
- unsigned int len = BPF_MAXINSNS;
- struct bpf_insn *insn = self->insns;
+ /* jump range is limited to 16 bit. PUSH_CNT of ld_abs needs room */
+ unsigned int len = (1 << 15) - PUSH_CNT * 2 * 5 * 6;
+ struct bpf_insn *insn = self->fill_insns;
int i = 0, j, k = 0;
insn[i++] = BPF_MOV64_REG(BPF_REG_6, BPF_REG_1);
loop:
for (j = 0; j < PUSH_CNT; j++) {
insn[i++] = BPF_LD_ABS(BPF_B, 0);
- insn[i] = BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0x34, len - i - 2);
+ /* jump to error label */
+ insn[i] = BPF_JMP32_IMM(BPF_JNE, BPF_REG_0, 0x34, len - i - 3);
i++;
insn[i++] = BPF_MOV64_REG(BPF_REG_1, BPF_REG_6);
insn[i++] = BPF_MOV64_IMM(BPF_REG_2, 1);
insn[i++] = BPF_MOV64_IMM(BPF_REG_3, 2);
insn[i++] = BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
BPF_FUNC_skb_vlan_push),
- insn[i] = BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, len - i - 2);
+ insn[i] = BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, len - i - 3);
i++;
}
for (j = 0; j < PUSH_CNT; j++) {
insn[i++] = BPF_LD_ABS(BPF_B, 0);
- insn[i] = BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0x34, len - i - 2);
+ insn[i] = BPF_JMP32_IMM(BPF_JNE, BPF_REG_0, 0x34, len - i - 3);
i++;
insn[i++] = BPF_MOV64_REG(BPF_REG_1, BPF_REG_6);
insn[i++] = BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
BPF_FUNC_skb_vlan_pop),
- insn[i] = BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, len - i - 2);
+ insn[i] = BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, len - i - 3);
i++;
}
if (++k < 5)
goto loop;
- for (; i < len - 1; i++)
- insn[i] = BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 0xbef);
+ for (; i < len - 3; i++)
+ insn[i] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0xbef);
+ insn[len - 3] = BPF_JMP_A(1);
+ /* error label */
+ insn[len - 2] = BPF_MOV32_IMM(BPF_REG_0, 0);
insn[len - 1] = BPF_EXIT_INSN();
+ self->prog_len = len;
}
static void bpf_fill_jump_around_ld_abs(struct bpf_test *self)
{
- struct bpf_insn *insn = self->insns;
- unsigned int len = BPF_MAXINSNS;
+ struct bpf_insn *insn = self->fill_insns;
+ /* jump range is limited to 16 bit. every ld_abs is replaced by 6 insns,
+ * but on arches like arm, ppc etc, there will be one BPF_ZEXT inserted
+ * to extend the error value of the inlined ld_abs sequence which then
+ * contains 7 insns. so, set the dividend to 7 so the testcase could
+ * work on all arches.
+ */
+ unsigned int len = (1 << 15) / 7;
int i = 0;
insn[i++] = BPF_MOV64_REG(BPF_REG_6, BPF_REG_1);
@@ -151,11 +199,12 @@
while (i < len - 1)
insn[i++] = BPF_LD_ABS(BPF_B, 1);
insn[i] = BPF_EXIT_INSN();
+ self->prog_len = i + 1;
}
static void bpf_fill_rand_ld_dw(struct bpf_test *self)
{
- struct bpf_insn *insn = self->insns;
+ struct bpf_insn *insn = self->fill_insns;
uint64_t res = 0;
int i = 0;
@@ -173,12609 +222,139 @@
insn[i++] = BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 32);
insn[i++] = BPF_ALU64_REG(BPF_XOR, BPF_REG_0, BPF_REG_1);
insn[i] = BPF_EXIT_INSN();
+ self->prog_len = i + 1;
res ^= (res >> 32);
self->retval = (uint32_t)res;
}
-static struct bpf_test tests[] = {
- {
- "add+sub+mul",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_1, 1),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 2),
- BPF_MOV64_IMM(BPF_REG_2, 3),
- BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -1),
- BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 3),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .retval = -3,
- },
- {
- "DIV32 by 0, zero check 1",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_0, 42),
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_MOV32_IMM(BPF_REG_2, 1),
- BPF_ALU32_REG(BPF_DIV, BPF_REG_2, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .retval = 42,
- },
- {
- "DIV32 by 0, zero check 2",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_0, 42),
- BPF_LD_IMM64(BPF_REG_1, 0xffffffff00000000LL),
- BPF_MOV32_IMM(BPF_REG_2, 1),
- BPF_ALU32_REG(BPF_DIV, BPF_REG_2, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .retval = 42,
- },
- {
- "DIV64 by 0, zero check",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_0, 42),
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_MOV32_IMM(BPF_REG_2, 1),
- BPF_ALU64_REG(BPF_DIV, BPF_REG_2, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .retval = 42,
- },
- {
- "MOD32 by 0, zero check 1",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_0, 42),
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_MOV32_IMM(BPF_REG_2, 1),
- BPF_ALU32_REG(BPF_MOD, BPF_REG_2, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .retval = 42,
- },
- {
- "MOD32 by 0, zero check 2",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_0, 42),
- BPF_LD_IMM64(BPF_REG_1, 0xffffffff00000000LL),
- BPF_MOV32_IMM(BPF_REG_2, 1),
- BPF_ALU32_REG(BPF_MOD, BPF_REG_2, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .retval = 42,
- },
- {
- "MOD64 by 0, zero check",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_0, 42),
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_MOV32_IMM(BPF_REG_2, 1),
- BPF_ALU64_REG(BPF_MOD, BPF_REG_2, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .retval = 42,
- },
- {
- "DIV32 by 0, zero check ok, cls",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_0, 42),
- BPF_MOV32_IMM(BPF_REG_1, 2),
- BPF_MOV32_IMM(BPF_REG_2, 16),
- BPF_ALU32_REG(BPF_DIV, BPF_REG_2, BPF_REG_1),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 8,
- },
- {
- "DIV32 by 0, zero check 1, cls",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_MOV32_IMM(BPF_REG_0, 1),
- BPF_ALU32_REG(BPF_DIV, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 0,
- },
- {
- "DIV32 by 0, zero check 2, cls",
- .insns = {
- BPF_LD_IMM64(BPF_REG_1, 0xffffffff00000000LL),
- BPF_MOV32_IMM(BPF_REG_0, 1),
- BPF_ALU32_REG(BPF_DIV, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 0,
- },
- {
- "DIV64 by 0, zero check, cls",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_MOV32_IMM(BPF_REG_0, 1),
- BPF_ALU64_REG(BPF_DIV, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 0,
- },
- {
- "MOD32 by 0, zero check ok, cls",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_0, 42),
- BPF_MOV32_IMM(BPF_REG_1, 3),
- BPF_MOV32_IMM(BPF_REG_2, 5),
- BPF_ALU32_REG(BPF_MOD, BPF_REG_2, BPF_REG_1),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 2,
- },
- {
- "MOD32 by 0, zero check 1, cls",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_MOV32_IMM(BPF_REG_0, 1),
- BPF_ALU32_REG(BPF_MOD, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 1,
- },
- {
- "MOD32 by 0, zero check 2, cls",
- .insns = {
- BPF_LD_IMM64(BPF_REG_1, 0xffffffff00000000LL),
- BPF_MOV32_IMM(BPF_REG_0, 1),
- BPF_ALU32_REG(BPF_MOD, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 1,
- },
- {
- "MOD64 by 0, zero check 1, cls",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_MOV32_IMM(BPF_REG_0, 2),
- BPF_ALU64_REG(BPF_MOD, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 2,
- },
- {
- "MOD64 by 0, zero check 2, cls",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_MOV32_IMM(BPF_REG_0, -1),
- BPF_ALU64_REG(BPF_MOD, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = -1,
- },
- /* Just make sure that JITs used udiv/umod as otherwise we get
- * an exception from INT_MIN/-1 overflow similarly as with div
- * by zero.
+#define MAX_JMP_SEQ 8192
+
+/* test the sequence of 8k jumps */
+static void bpf_fill_scale1(struct bpf_test *self)
+{
+ struct bpf_insn *insn = self->fill_insns;
+ int i = 0, k = 0;
+
+ insn[i++] = BPF_MOV64_REG(BPF_REG_6, BPF_REG_1);
+ /* test to check that the long sequence of jumps is acceptable */
+ while (k++ < MAX_JMP_SEQ) {
+ insn[i++] = BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+ BPF_FUNC_get_prandom_u32);
+ insn[i++] = BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, bpf_semi_rand_get(), 2);
+ insn[i++] = BPF_MOV64_REG(BPF_REG_1, BPF_REG_10);
+ insn[i++] = BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6,
+ -8 * (k % 64 + 1));
+ }
+ /* is_state_visited() doesn't allocate state for pruning for every jump.
+ * Hence multiply jmps by 4 to accommodate that heuristic
*/
- {
- "DIV32 overflow, check 1",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_1, -1),
- BPF_MOV32_IMM(BPF_REG_0, INT_MIN),
- BPF_ALU32_REG(BPF_DIV, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 0,
- },
- {
- "DIV32 overflow, check 2",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_0, INT_MIN),
- BPF_ALU32_IMM(BPF_DIV, BPF_REG_0, -1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 0,
- },
- {
- "DIV64 overflow, check 1",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_1, -1),
- BPF_LD_IMM64(BPF_REG_0, LLONG_MIN),
- BPF_ALU64_REG(BPF_DIV, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 0,
- },
- {
- "DIV64 overflow, check 2",
- .insns = {
- BPF_LD_IMM64(BPF_REG_0, LLONG_MIN),
- BPF_ALU64_IMM(BPF_DIV, BPF_REG_0, -1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 0,
- },
- {
- "MOD32 overflow, check 1",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_1, -1),
- BPF_MOV32_IMM(BPF_REG_0, INT_MIN),
- BPF_ALU32_REG(BPF_MOD, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = INT_MIN,
- },
- {
- "MOD32 overflow, check 2",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_0, INT_MIN),
- BPF_ALU32_IMM(BPF_MOD, BPF_REG_0, -1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = INT_MIN,
- },
- {
- "MOD64 overflow, check 1",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_1, -1),
- BPF_LD_IMM64(BPF_REG_2, LLONG_MIN),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
- BPF_ALU64_REG(BPF_MOD, BPF_REG_2, BPF_REG_1),
- BPF_MOV32_IMM(BPF_REG_0, 0),
- BPF_JMP_REG(BPF_JNE, BPF_REG_3, BPF_REG_2, 1),
- BPF_MOV32_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 1,
- },
- {
- "MOD64 overflow, check 2",
- .insns = {
- BPF_LD_IMM64(BPF_REG_2, LLONG_MIN),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
- BPF_ALU64_IMM(BPF_MOD, BPF_REG_2, -1),
- BPF_MOV32_IMM(BPF_REG_0, 0),
- BPF_JMP_REG(BPF_JNE, BPF_REG_3, BPF_REG_2, 1),
- BPF_MOV32_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 1,
- },
- {
- "xor32 zero extend check",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_2, -1),
- BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 32),
- BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 0xffff),
- BPF_ALU32_REG(BPF_XOR, BPF_REG_2, BPF_REG_2),
- BPF_MOV32_IMM(BPF_REG_0, 2),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 1),
- BPF_MOV32_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 1,
- },
- {
- "empty prog",
- .insns = {
- },
- .errstr = "unknown opcode 00",
- .result = REJECT,
- },
- {
- "only exit insn",
- .insns = {
- BPF_EXIT_INSN(),
- },
- .errstr = "R0 !read_ok",
- .result = REJECT,
- },
- {
- "unreachable",
- .insns = {
- BPF_EXIT_INSN(),
- BPF_EXIT_INSN(),
- },
- .errstr = "unreachable",
- .result = REJECT,
- },
- {
- "unreachable2",
- .insns = {
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "unreachable",
- .result = REJECT,
- },
- {
- "out of range jump",
- .insns = {
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_EXIT_INSN(),
- },
- .errstr = "jump out of range",
- .result = REJECT,
- },
- {
- "out of range jump2",
- .insns = {
- BPF_JMP_IMM(BPF_JA, 0, 0, -2),
- BPF_EXIT_INSN(),
- },
- .errstr = "jump out of range",
- .result = REJECT,
- },
- {
- "test1 ld_imm64",
- .insns = {
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
- BPF_LD_IMM64(BPF_REG_0, 0),
- BPF_LD_IMM64(BPF_REG_0, 0),
- BPF_LD_IMM64(BPF_REG_0, 1),
- BPF_LD_IMM64(BPF_REG_0, 1),
- BPF_MOV64_IMM(BPF_REG_0, 2),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid BPF_LD_IMM insn",
- .errstr_unpriv = "R1 pointer comparison",
- .result = REJECT,
- },
- {
- "test2 ld_imm64",
- .insns = {
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
- BPF_LD_IMM64(BPF_REG_0, 0),
- BPF_LD_IMM64(BPF_REG_0, 0),
- BPF_LD_IMM64(BPF_REG_0, 1),
- BPF_LD_IMM64(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid BPF_LD_IMM insn",
- .errstr_unpriv = "R1 pointer comparison",
- .result = REJECT,
- },
- {
- "test3 ld_imm64",
- .insns = {
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
- BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
- BPF_LD_IMM64(BPF_REG_0, 0),
- BPF_LD_IMM64(BPF_REG_0, 0),
- BPF_LD_IMM64(BPF_REG_0, 1),
- BPF_LD_IMM64(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_ld_imm64 insn",
- .result = REJECT,
- },
- {
- "test4 ld_imm64",
- .insns = {
- BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_ld_imm64 insn",
- .result = REJECT,
- },
- {
- "test5 ld_imm64",
- .insns = {
- BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
- },
- .errstr = "invalid bpf_ld_imm64 insn",
- .result = REJECT,
- },
- {
- "test6 ld_imm64",
- .insns = {
- BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
- BPF_RAW_INSN(0, 0, 0, 0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "test7 ld_imm64",
- .insns = {
- BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
- BPF_RAW_INSN(0, 0, 0, 0, 1),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .retval = 1,
- },
- {
- "test8 ld_imm64",
- .insns = {
- BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 1, 1),
- BPF_RAW_INSN(0, 0, 0, 0, 1),
- BPF_EXIT_INSN(),
- },
- .errstr = "uses reserved fields",
- .result = REJECT,
- },
- {
- "test9 ld_imm64",
- .insns = {
- BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
- BPF_RAW_INSN(0, 0, 0, 1, 1),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_ld_imm64 insn",
- .result = REJECT,
- },
- {
- "test10 ld_imm64",
- .insns = {
- BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
- BPF_RAW_INSN(0, BPF_REG_1, 0, 0, 1),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_ld_imm64 insn",
- .result = REJECT,
- },
- {
- "test11 ld_imm64",
- .insns = {
- BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
- BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_ld_imm64 insn",
- .result = REJECT,
- },
- {
- "test12 ld_imm64",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1),
- BPF_RAW_INSN(0, 0, 0, 0, 1),
- BPF_EXIT_INSN(),
- },
- .errstr = "not pointing to valid bpf_map",
- .result = REJECT,
- },
- {
- "test13 ld_imm64",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1),
- BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_ld_imm64 insn",
- .result = REJECT,
- },
- {
- "arsh32 on imm",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_ALU32_IMM(BPF_ARSH, BPF_REG_0, 5),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "unknown opcode c4",
- },
- {
- "arsh32 on reg",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_MOV64_IMM(BPF_REG_1, 5),
- BPF_ALU32_REG(BPF_ARSH, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "unknown opcode cc",
- },
- {
- "arsh64 on imm",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_ALU64_IMM(BPF_ARSH, BPF_REG_0, 5),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "arsh64 on reg",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_MOV64_IMM(BPF_REG_1, 5),
- BPF_ALU64_REG(BPF_ARSH, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "no bpf_exit",
- .insns = {
- BPF_ALU64_REG(BPF_MOV, BPF_REG_0, BPF_REG_2),
- },
- .errstr = "not an exit",
- .result = REJECT,
- },
- {
- "loop (back-edge)",
- .insns = {
- BPF_JMP_IMM(BPF_JA, 0, 0, -1),
- BPF_EXIT_INSN(),
- },
- .errstr = "back-edge",
- .result = REJECT,
- },
- {
- "loop2 (back-edge)",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
- BPF_JMP_IMM(BPF_JA, 0, 0, -4),
- BPF_EXIT_INSN(),
- },
- .errstr = "back-edge",
- .result = REJECT,
- },
- {
- "conditional loop",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -3),
- BPF_EXIT_INSN(),
- },
- .errstr = "back-edge",
- .result = REJECT,
- },
- {
- "read uninitialized register",
- .insns = {
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_EXIT_INSN(),
- },
- .errstr = "R2 !read_ok",
- .result = REJECT,
- },
- {
- "read invalid register",
- .insns = {
- BPF_MOV64_REG(BPF_REG_0, -1),
- BPF_EXIT_INSN(),
- },
- .errstr = "R15 is invalid",
- .result = REJECT,
- },
- {
- "program doesn't init R0 before exit",
- .insns = {
- BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .errstr = "R0 !read_ok",
- .result = REJECT,
- },
- {
- "program doesn't init R0 before exit in all branches",
- .insns = {
- BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2),
- BPF_EXIT_INSN(),
- },
- .errstr = "R0 !read_ok",
- .errstr_unpriv = "R1 pointer comparison",
- .result = REJECT,
- },
- {
- "stack out of bounds",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, 8, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid stack",
- .result = REJECT,
- },
- {
- "invalid call insn1",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL | BPF_X, 0, 0, 0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "unknown opcode 8d",
- .result = REJECT,
- },
- {
- "invalid call insn2",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 1, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "BPF_CALL uses reserved",
- .result = REJECT,
- },
- {
- "invalid function call",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1234567),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid func unknown#1234567",
- .result = REJECT,
- },
- {
- "uninitialized stack1",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 2 },
- .errstr = "invalid indirect read from stack",
- .result = REJECT,
- },
- {
- "uninitialized stack2",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -8),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid read from stack",
- .result = REJECT,
- },
- {
- "invalid fp arithmetic",
- /* If this gets ever changed, make sure JITs can deal with it. */
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 8),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 subtraction from stack pointer",
- .result = REJECT,
- },
- {
- "non-invalid fp arithmetic",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "invalid argument register",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_get_cgroup_classid),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_get_cgroup_classid),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 !read_ok",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "non-invalid argument register",
- .insns = {
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_get_cgroup_classid),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_6),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_get_cgroup_classid),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "check valid spill/fill",
- .insns = {
- /* spill R1(ctx) into stack */
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
- /* fill it back into R2 */
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8),
- /* should be able to access R0 = *(R2 + 8) */
- /* BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 8), */
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R0 leaks addr",
- .result = ACCEPT,
- .result_unpriv = REJECT,
- .retval = POINTER_VALUE,
- },
- {
- "check valid spill/fill, skb mark",
- .insns = {
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
- offsetof(struct __sk_buff, mark)),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .result_unpriv = ACCEPT,
- },
- {
- "check corrupted spill/fill",
- .insns = {
- /* spill R1(ctx) into stack */
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
- /* mess up with R1 pointer on stack */
- BPF_ST_MEM(BPF_B, BPF_REG_10, -7, 0x23),
- /* fill back into R0 is fine for priv.
- * R0 now becomes SCALAR_VALUE.
- */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
- /* Load from R0 should fail. */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 8),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "attempt to corrupt spilled",
- .errstr = "R0 invalid mem access 'inv",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "check corrupted spill/fill, LSB",
- .insns = {
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
- BPF_ST_MEM(BPF_H, BPF_REG_10, -8, 0xcafe),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "attempt to corrupt spilled",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- .retval = POINTER_VALUE,
- },
- {
- "check corrupted spill/fill, MSB",
- .insns = {
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
- BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 0x12345678),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "attempt to corrupt spilled",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- .retval = POINTER_VALUE,
- },
- {
- "invalid src register in STX",
- .insns = {
- BPF_STX_MEM(BPF_B, BPF_REG_10, -1, -1),
- BPF_EXIT_INSN(),
- },
- .errstr = "R15 is invalid",
- .result = REJECT,
- },
- {
- "invalid dst register in STX",
- .insns = {
- BPF_STX_MEM(BPF_B, 14, BPF_REG_10, -1),
- BPF_EXIT_INSN(),
- },
- .errstr = "R14 is invalid",
- .result = REJECT,
- },
- {
- "invalid dst register in ST",
- .insns = {
- BPF_ST_MEM(BPF_B, 14, -1, -1),
- BPF_EXIT_INSN(),
- },
- .errstr = "R14 is invalid",
- .result = REJECT,
- },
- {
- "invalid src register in LDX",
- .insns = {
- BPF_LDX_MEM(BPF_B, BPF_REG_0, 12, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R12 is invalid",
- .result = REJECT,
- },
- {
- "invalid dst register in LDX",
- .insns = {
- BPF_LDX_MEM(BPF_B, 11, BPF_REG_1, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R11 is invalid",
- .result = REJECT,
- },
- {
- "junk insn",
- .insns = {
- BPF_RAW_INSN(0, 0, 0, 0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "unknown opcode 00",
- .result = REJECT,
- },
- {
- "junk insn2",
- .insns = {
- BPF_RAW_INSN(1, 0, 0, 0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "BPF_LDX uses reserved fields",
- .result = REJECT,
- },
- {
- "junk insn3",
- .insns = {
- BPF_RAW_INSN(-1, 0, 0, 0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "unknown opcode ff",
- .result = REJECT,
- },
- {
- "junk insn4",
- .insns = {
- BPF_RAW_INSN(-1, -1, -1, -1, -1),
- BPF_EXIT_INSN(),
- },
- .errstr = "unknown opcode ff",
- .result = REJECT,
- },
- {
- "junk insn5",
- .insns = {
- BPF_RAW_INSN(0x7f, -1, -1, -1, -1),
- BPF_EXIT_INSN(),
- },
- .errstr = "BPF_ALU uses reserved fields",
- .result = REJECT,
- },
- {
- "misaligned read from stack",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -4),
- BPF_EXIT_INSN(),
- },
- .errstr = "misaligned stack access",
- .result = REJECT,
- },
- {
- "invalid map_fd for function call",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_delete_elem),
- BPF_EXIT_INSN(),
- },
- .errstr = "fd 0 is not pointing to valid bpf_map",
- .result = REJECT,
- },
- {
- "don't check return value before access",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "R0 invalid mem access 'map_value_or_null'",
- .result = REJECT,
- },
- {
- "access memory with incorrect alignment",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 4, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "misaligned value access",
- .result = REJECT,
- .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
- },
- {
- "sometimes access memory with incorrect alignment",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
- BPF_EXIT_INSN(),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 1),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "R0 invalid mem access",
- .errstr_unpriv = "R0 leaks addr",
- .result = REJECT,
- .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
- },
- {
- "jump test 1",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 1),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 2),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 3),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 4),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R1 pointer comparison",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "jump test 2",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, 14),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, 11),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 2),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, 8),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, 5),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 2),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, 2),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R1 pointer comparison",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "jump test 3",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_JMP_IMM(BPF_JA, 0, 0, 19),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 3),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
- BPF_JMP_IMM(BPF_JA, 0, 0, 15),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 3),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32),
- BPF_JMP_IMM(BPF_JA, 0, 0, 11),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 3),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -40),
- BPF_JMP_IMM(BPF_JA, 0, 0, 7),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 3),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48),
- BPF_JMP_IMM(BPF_JA, 0, 0, 3),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 0),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -56),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_delete_elem),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 24 },
- .errstr_unpriv = "R1 pointer comparison",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- .retval = -ENOENT,
- },
- {
- "jump test 4",
- .insns = {
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R1 pointer comparison",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "jump test 5",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
- BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
- BPF_JMP_IMM(BPF_JA, 0, 0, 2),
- BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
- BPF_JMP_IMM(BPF_JA, 0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
- BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
- BPF_JMP_IMM(BPF_JA, 0, 0, 2),
- BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
- BPF_JMP_IMM(BPF_JA, 0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
- BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
- BPF_JMP_IMM(BPF_JA, 0, 0, 2),
- BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
- BPF_JMP_IMM(BPF_JA, 0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
- BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
- BPF_JMP_IMM(BPF_JA, 0, 0, 2),
- BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
- BPF_JMP_IMM(BPF_JA, 0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
- BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
- BPF_JMP_IMM(BPF_JA, 0, 0, 2),
- BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
- BPF_JMP_IMM(BPF_JA, 0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R1 pointer comparison",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "access skb fields ok",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, len)),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, pkt_type)),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, queue_mapping)),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, protocol)),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, vlan_present)),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, vlan_tci)),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, napi_id)),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "access skb fields bad1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -4),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- },
- {
- "access skb fields bad2",
- .insns = {
- BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 9),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, pkt_type)),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 4 },
- .errstr = "different pointers",
- .errstr_unpriv = "R1 pointer comparison",
- .result = REJECT,
- },
- {
- "access skb fields bad3",
- .insns = {
- BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, pkt_type)),
- BPF_EXIT_INSN(),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_JMP_IMM(BPF_JA, 0, 0, -12),
- },
- .fixup_map1 = { 6 },
- .errstr = "different pointers",
- .errstr_unpriv = "R1 pointer comparison",
- .result = REJECT,
- },
- {
- "access skb fields bad4",
- .insns = {
- BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 3),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
- offsetof(struct __sk_buff, len)),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_JMP_IMM(BPF_JA, 0, 0, -13),
- },
- .fixup_map1 = { 7 },
- .errstr = "different pointers",
- .errstr_unpriv = "R1 pointer comparison",
- .result = REJECT,
- },
- {
- "invalid access __sk_buff family",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, family)),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- },
- {
- "invalid access __sk_buff remote_ip4",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, remote_ip4)),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- },
- {
- "invalid access __sk_buff local_ip4",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, local_ip4)),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- },
- {
- "invalid access __sk_buff remote_ip6",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, remote_ip6)),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- },
- {
- "invalid access __sk_buff local_ip6",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, local_ip6)),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- },
- {
- "invalid access __sk_buff remote_port",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, remote_port)),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- },
- {
- "invalid access __sk_buff remote_port",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, local_port)),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- },
- {
- "valid access __sk_buff family",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, family)),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_SKB,
- },
- {
- "valid access __sk_buff remote_ip4",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, remote_ip4)),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_SKB,
- },
- {
- "valid access __sk_buff local_ip4",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, local_ip4)),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_SKB,
- },
- {
- "valid access __sk_buff remote_ip6",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, remote_ip6[0])),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, remote_ip6[1])),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, remote_ip6[2])),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, remote_ip6[3])),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_SKB,
- },
- {
- "valid access __sk_buff local_ip6",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, local_ip6[0])),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, local_ip6[1])),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, local_ip6[2])),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, local_ip6[3])),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_SKB,
- },
- {
- "valid access __sk_buff remote_port",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, remote_port)),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_SKB,
- },
- {
- "valid access __sk_buff remote_port",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, local_port)),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_SKB,
- },
- {
- "invalid access of tc_classid for SK_SKB",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, tc_classid)),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SK_SKB,
- .errstr = "invalid bpf_context access",
- },
- {
- "invalid access of skb->mark for SK_SKB",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SK_SKB,
- .errstr = "invalid bpf_context access",
- },
- {
- "check skb->mark is not writeable by SK_SKB",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, mark)),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SK_SKB,
- .errstr = "invalid bpf_context access",
- },
- {
- "check skb->tc_index is writeable by SK_SKB",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, tc_index)),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_SKB,
- },
- {
- "check skb->priority is writeable by SK_SKB",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, priority)),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_SKB,
- },
- {
- "direct packet read for SK_SKB",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_SKB,
- },
- {
- "direct packet write for SK_SKB",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_SKB,
- },
- {
- "overlapping checks for direct packet access SK_SKB",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_SKB,
- },
- {
- "valid access family in SK_MSG",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct sk_msg_md, family)),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_MSG,
- },
- {
- "valid access remote_ip4 in SK_MSG",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct sk_msg_md, remote_ip4)),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_MSG,
- },
- {
- "valid access local_ip4 in SK_MSG",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct sk_msg_md, local_ip4)),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_MSG,
- },
- {
- "valid access remote_port in SK_MSG",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct sk_msg_md, remote_port)),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_MSG,
- },
- {
- "valid access local_port in SK_MSG",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct sk_msg_md, local_port)),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_MSG,
- },
- {
- "valid access remote_ip6 in SK_MSG",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct sk_msg_md, remote_ip6[0])),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct sk_msg_md, remote_ip6[1])),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct sk_msg_md, remote_ip6[2])),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct sk_msg_md, remote_ip6[3])),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_SKB,
- },
- {
- "valid access local_ip6 in SK_MSG",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct sk_msg_md, local_ip6[0])),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct sk_msg_md, local_ip6[1])),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct sk_msg_md, local_ip6[2])),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct sk_msg_md, local_ip6[3])),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_SKB,
- },
- {
- "invalid 64B read of family in SK_MSG",
- .insns = {
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1,
- offsetof(struct sk_msg_md, family)),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SK_MSG,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "invalid read past end of SK_MSG",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct sk_msg_md, local_port) + 4),
- BPF_EXIT_INSN(),
- },
- .errstr = "R0 !read_ok",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SK_MSG,
- },
- {
- "invalid read offset in SK_MSG",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct sk_msg_md, family) + 1),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SK_MSG,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "direct packet read for SK_MSG",
- .insns = {
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1,
- offsetof(struct sk_msg_md, data)),
- BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1,
- offsetof(struct sk_msg_md, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_MSG,
- },
- {
- "direct packet write for SK_MSG",
- .insns = {
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1,
- offsetof(struct sk_msg_md, data)),
- BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1,
- offsetof(struct sk_msg_md, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_MSG,
- },
- {
- "overlapping checks for direct packet access SK_MSG",
- .insns = {
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1,
- offsetof(struct sk_msg_md, data)),
- BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1,
- offsetof(struct sk_msg_md, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SK_MSG,
- },
- {
- "check skb->mark is not writeable by sockets",
- .insns = {
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .errstr_unpriv = "R1 leaks addr",
- .result = REJECT,
- },
- {
- "check skb->tc_index is not writeable by sockets",
- .insns = {
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
- offsetof(struct __sk_buff, tc_index)),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .errstr_unpriv = "R1 leaks addr",
- .result = REJECT,
- },
- {
- "check cb access: byte",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[0])),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[0]) + 1),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[0]) + 2),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[0]) + 3),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[1])),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[1]) + 1),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[1]) + 2),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[1]) + 3),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[2])),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[2]) + 1),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[2]) + 2),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[2]) + 3),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[3])),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[3]) + 1),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[3]) + 2),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[3]) + 3),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[4])),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[4]) + 1),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[4]) + 2),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[4]) + 3),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[0])),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[0]) + 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[0]) + 2),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[0]) + 3),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[1])),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[1]) + 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[1]) + 2),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[1]) + 3),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[2])),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[2]) + 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[2]) + 2),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[2]) + 3),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[3])),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[3]) + 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[3]) + 2),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[3]) + 3),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[4])),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[4]) + 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[4]) + 2),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[4]) + 3),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "__sk_buff->hash, offset 0, byte store not permitted",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, hash)),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- },
- {
- "__sk_buff->tc_index, offset 3, byte store not permitted",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, tc_index) + 3),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- },
- {
- "check skb->hash byte load permitted",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, hash)),
-#else
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, hash) + 3),
-#endif
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "check skb->hash byte load permitted 1",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, hash) + 1),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "check skb->hash byte load permitted 2",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, hash) + 2),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "check skb->hash byte load permitted 3",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, hash) + 3),
-#else
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, hash)),
-#endif
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "check cb access: byte, wrong type",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[0])),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
- },
- {
- "check cb access: half",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[0])),
- BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[0]) + 2),
- BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[1])),
- BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[1]) + 2),
- BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[2])),
- BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[2]) + 2),
- BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[3])),
- BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[3]) + 2),
- BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[4])),
- BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[4]) + 2),
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[0])),
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[0]) + 2),
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[1])),
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[1]) + 2),
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[2])),
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[2]) + 2),
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[3])),
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[3]) + 2),
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[4])),
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[4]) + 2),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "check cb access: half, unaligned",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[0]) + 1),
- BPF_EXIT_INSN(),
- },
- .errstr = "misaligned context access",
- .result = REJECT,
- .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
- },
- {
- "check __sk_buff->hash, offset 0, half store not permitted",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, hash)),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- },
- {
- "check __sk_buff->tc_index, offset 2, half store not permitted",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, tc_index) + 2),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- },
- {
- "check skb->hash half load permitted",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, hash)),
-#else
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, hash) + 2),
-#endif
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "check skb->hash half load permitted 2",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, hash) + 2),
-#else
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, hash)),
-#endif
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "check skb->hash half load not permitted, unaligned 1",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, hash) + 1),
-#else
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, hash) + 3),
-#endif
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "check skb->hash half load not permitted, unaligned 3",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, hash) + 3),
-#else
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, hash) + 1),
-#endif
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "check cb access: half, wrong type",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[0])),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
- },
- {
- "check cb access: word",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[0])),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[1])),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[2])),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[3])),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[4])),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[0])),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[1])),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[2])),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[3])),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[4])),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "check cb access: word, unaligned 1",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[0]) + 2),
- BPF_EXIT_INSN(),
- },
- .errstr = "misaligned context access",
- .result = REJECT,
- .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
- },
- {
- "check cb access: word, unaligned 2",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[4]) + 1),
- BPF_EXIT_INSN(),
- },
- .errstr = "misaligned context access",
- .result = REJECT,
- .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
- },
- {
- "check cb access: word, unaligned 3",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[4]) + 2),
- BPF_EXIT_INSN(),
- },
- .errstr = "misaligned context access",
- .result = REJECT,
- .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
- },
- {
- "check cb access: word, unaligned 4",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[4]) + 3),
- BPF_EXIT_INSN(),
- },
- .errstr = "misaligned context access",
- .result = REJECT,
- .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
- },
- {
- "check cb access: double",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[0])),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[2])),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[0])),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[2])),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "check cb access: double, unaligned 1",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[1])),
- BPF_EXIT_INSN(),
- },
- .errstr = "misaligned context access",
- .result = REJECT,
- .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
- },
- {
- "check cb access: double, unaligned 2",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[3])),
- BPF_EXIT_INSN(),
- },
- .errstr = "misaligned context access",
- .result = REJECT,
- .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
- },
- {
- "check cb access: double, oob 1",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[4])),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- },
- {
- "check cb access: double, oob 2",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[4])),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- },
- {
- "check __sk_buff->ifindex dw store not permitted",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, ifindex)),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- },
- {
- "check __sk_buff->ifindex dw load not permitted",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, ifindex)),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- },
- {
- "check cb access: double, wrong type",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[0])),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
- },
- {
- "check out of range skb->cb access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[0]) + 256),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access",
- .errstr_unpriv = "",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SCHED_ACT,
- },
- {
- "write skb fields from socket prog",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[4])),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, tc_index)),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
- offsetof(struct __sk_buff, cb[0])),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
- offsetof(struct __sk_buff, cb[2])),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .errstr_unpriv = "R1 leaks addr",
- .result_unpriv = REJECT,
- },
- {
- "write skb fields from tc_cls_act prog",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, cb[0])),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, mark)),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, tc_index)),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, tc_index)),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[3])),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "PTR_TO_STACK store/load",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10),
- BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .retval = 0xfaceb00c,
- },
- {
- "PTR_TO_STACK store/load - bad alignment on off",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "misaligned stack access off (0x0; 0x0)+-8+2 size 8",
- },
- {
- "PTR_TO_STACK store/load - bad alignment on reg",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10),
- BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "misaligned stack access off (0x0; 0x0)+-10+8 size 8",
- },
- {
- "PTR_TO_STACK store/load - out of bounds low",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -80000),
- BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid stack off=-79992 size=8",
- .errstr_unpriv = "R1 stack pointer arithmetic goes out of range",
- },
- {
- "PTR_TO_STACK store/load - out of bounds high",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid stack off=0 size=8",
- },
- {
- "unpriv: return pointer",
- .insns = {
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .result_unpriv = REJECT,
- .errstr_unpriv = "R0 leaks addr",
- .retval = POINTER_VALUE,
- },
- {
- "unpriv: add const to pointer",
- .insns = {
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "unpriv: add pointer to pointer",
- .insns = {
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R1 pointer += pointer",
- },
- {
- "unpriv: neg pointer",
- .insns = {
- BPF_ALU64_IMM(BPF_NEG, BPF_REG_1, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .result_unpriv = REJECT,
- .errstr_unpriv = "R1 pointer arithmetic",
- },
- {
- "unpriv: cmp pointer with const",
- .insns = {
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .result_unpriv = REJECT,
- .errstr_unpriv = "R1 pointer comparison",
- },
- {
- "unpriv: cmp pointer with pointer",
- .insns = {
- BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .result_unpriv = REJECT,
- .errstr_unpriv = "R10 pointer comparison",
- },
- {
- "unpriv: check that printk is disallowed",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_2, 8),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_1),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_trace_printk),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "unknown func bpf_trace_printk#6",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "unpriv: pass pointer to helper function",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_update_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr_unpriv = "R4 leaks addr",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "unpriv: indirectly pass pointer on stack to helper function",
- .insns = {
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "invalid indirect read from stack off -8+0 size 8",
- .result = REJECT,
- },
- {
- "unpriv: mangle pointer on stack 1",
- .insns = {
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8),
- BPF_ST_MEM(BPF_W, BPF_REG_10, -8, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "attempt to corrupt spilled",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "unpriv: mangle pointer on stack 2",
- .insns = {
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8),
- BPF_ST_MEM(BPF_B, BPF_REG_10, -1, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "attempt to corrupt spilled",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "unpriv: read pointer from stack in small chunks",
- .insns = {
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid size",
- .result = REJECT,
- },
- {
- "unpriv: write pointer into ctx",
- .insns = {
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R1 leaks addr",
- .result_unpriv = REJECT,
- .errstr = "invalid bpf_context access",
- .result = REJECT,
- },
- {
- "unpriv: spill/fill of ctx",
- .insns = {
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "unpriv: spill/fill of ctx 2",
- .insns = {
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_get_hash_recalc),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "unpriv: spill/fill of ctx 3",
- .insns = {
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_get_hash_recalc),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R1 type=fp expected=ctx",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "unpriv: spill/fill of ctx 4",
- .insns = {
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_RAW_INSN(BPF_STX | BPF_XADD | BPF_DW, BPF_REG_10,
- BPF_REG_0, -8, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_get_hash_recalc),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R1 type=inv expected=ctx",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "unpriv: spill/fill of different pointers stx",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_3, 42),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
- BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3,
- offsetof(struct __sk_buff, mark)),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "same insn cannot be used with different pointers",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "unpriv: spill/fill of different pointers ldx",
- .insns = {
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2,
- -(__s32)offsetof(struct bpf_perf_event_data,
- sample_period) - 8),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1,
- offsetof(struct bpf_perf_event_data,
- sample_period)),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "same insn cannot be used with different pointers",
- .prog_type = BPF_PROG_TYPE_PERF_EVENT,
- },
- {
- "unpriv: write pointer into map elem value",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "alu32: mov u32 const",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_7, 0),
- BPF_ALU32_IMM(BPF_AND, BPF_REG_7, 1),
- BPF_MOV32_REG(BPF_REG_0, BPF_REG_7),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_7, 0),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R7 invalid mem access 'inv'",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- .retval = 0,
- },
- {
- "unpriv: partial copy of pointer",
- .insns = {
- BPF_MOV32_REG(BPF_REG_1, BPF_REG_10),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R10 partial copy",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "unpriv: pass pointer to tail_call",
- .insns = {
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_1),
- BPF_LD_MAP_FD(BPF_REG_2, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_tail_call),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_prog1 = { 1 },
- .errstr_unpriv = "R3 leaks addr into helper",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "unpriv: cmp map pointer with zero",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_1, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 1 },
- .errstr_unpriv = "R1 pointer comparison",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "unpriv: write into frame pointer",
- .insns = {
- BPF_MOV64_REG(BPF_REG_10, BPF_REG_1),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "frame pointer is read only",
- .result = REJECT,
- },
- {
- "unpriv: spill/fill frame pointer",
- .insns = {
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "frame pointer is read only",
- .result = REJECT,
- },
- {
- "unpriv: cmp of frame pointer",
- .insns = {
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_10, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R10 pointer comparison",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "unpriv: adding of fp, reg",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_1, 0),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R1 stack pointer arithmetic goes out of range",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "unpriv: adding of fp, imm",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R1 stack pointer arithmetic goes out of range",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "unpriv: cmp of stack pointer",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R2 pointer comparison",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "runtime/jit: tail_call within bounds, prog once",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_LD_MAP_FD(BPF_REG_2, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_tail_call),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .fixup_prog1 = { 1 },
- .result = ACCEPT,
- .retval = 42,
- },
- {
- "runtime/jit: tail_call within bounds, prog loop",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_3, 1),
- BPF_LD_MAP_FD(BPF_REG_2, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_tail_call),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .fixup_prog1 = { 1 },
- .result = ACCEPT,
- .retval = 41,
- },
- {
- "runtime/jit: tail_call within bounds, no prog",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_3, 2),
- BPF_LD_MAP_FD(BPF_REG_2, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_tail_call),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .fixup_prog1 = { 1 },
- .result = ACCEPT,
- .retval = 1,
- },
- {
- "runtime/jit: tail_call out of bounds",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_3, 256),
- BPF_LD_MAP_FD(BPF_REG_2, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_tail_call),
- BPF_MOV64_IMM(BPF_REG_0, 2),
- BPF_EXIT_INSN(),
- },
- .fixup_prog1 = { 1 },
- .result = ACCEPT,
- .retval = 2,
- },
- {
- "runtime/jit: pass negative index to tail_call",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_3, -1),
- BPF_LD_MAP_FD(BPF_REG_2, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_tail_call),
- BPF_MOV64_IMM(BPF_REG_0, 2),
- BPF_EXIT_INSN(),
- },
- .fixup_prog1 = { 1 },
- .result = ACCEPT,
- .retval = 2,
- },
- {
- "runtime/jit: pass > 32bit index to tail_call",
- .insns = {
- BPF_LD_IMM64(BPF_REG_3, 0x100000000ULL),
- BPF_LD_MAP_FD(BPF_REG_2, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_tail_call),
- BPF_MOV64_IMM(BPF_REG_0, 2),
- BPF_EXIT_INSN(),
- },
- .fixup_prog1 = { 2 },
- .result = ACCEPT,
- .retval = 42,
- /* Verifier rewrite for unpriv skips tail call here. */
- .retval_unpriv = 2,
- },
- {
- "stack pointer arithmetic",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_1, 4),
- BPF_JMP_IMM(BPF_JA, 0, 0, 0),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_1),
- BPF_ST_MEM(0, BPF_REG_2, 4, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8),
- BPF_ST_MEM(0, BPF_REG_2, 4, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "raw_stack: no skb_load_bytes",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_4, 8),
- /* Call to skb_load_bytes() omitted. */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid read from stack off -8+0 size 8",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "raw_stack: skb_load_bytes, negative len",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_4, -8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R4 min value is negative",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "raw_stack: skb_load_bytes, negative len 2",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_4, ~0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R4 min value is negative",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "raw_stack: skb_load_bytes, zero len",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid stack type R3",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "raw_stack: skb_load_bytes, no init",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_4, 8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "raw_stack: skb_load_bytes, init",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_6, 0, 0xcafe),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_4, 8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "raw_stack: skb_load_bytes, spilled regs around bounds",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_4, 8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
- offsetof(struct __sk_buff, mark)),
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2,
- offsetof(struct __sk_buff, priority)),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "raw_stack: skb_load_bytes, spilled regs corruption",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_4, 8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
- offsetof(struct __sk_buff, mark)),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R0 invalid mem access 'inv'",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "raw_stack: skb_load_bytes, spilled regs corruption 2",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_4, 8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
- offsetof(struct __sk_buff, mark)),
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2,
- offsetof(struct __sk_buff, priority)),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_3,
- offsetof(struct __sk_buff, pkt_type)),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R3 invalid mem access 'inv'",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "raw_stack: skb_load_bytes, spilled regs + data",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_4, 8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
- offsetof(struct __sk_buff, mark)),
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2,
- offsetof(struct __sk_buff, priority)),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "raw_stack: skb_load_bytes, invalid access 1",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -513),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_4, 8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid stack type R3 off=-513 access_size=8",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "raw_stack: skb_load_bytes, invalid access 2",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_4, 8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid stack type R3 off=-1 access_size=8",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "raw_stack: skb_load_bytes, invalid access 3",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 0xffffffff),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_4, 0xffffffff),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R4 min value is negative",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "raw_stack: skb_load_bytes, invalid access 4",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R4 unbounded memory access, use 'var &= const' or 'if (var < const)'",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "raw_stack: skb_load_bytes, invalid access 5",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R4 unbounded memory access, use 'var &= const' or 'if (var < const)'",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "raw_stack: skb_load_bytes, invalid access 6",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid stack type R3 off=-512 access_size=0",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "raw_stack: skb_load_bytes, large access",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_4, 512),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "context stores via ST",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_ST_MEM(BPF_DW, BPF_REG_1, offsetof(struct __sk_buff, mark), 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "BPF_ST stores into R1 context is not allowed",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "context stores via XADD",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_RAW_INSN(BPF_STX | BPF_XADD | BPF_W, BPF_REG_1,
- BPF_REG_0, offsetof(struct __sk_buff, mark), 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "BPF_XADD stores into R1 context is not allowed",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "direct packet access: test1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "direct packet access: test2",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
- BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 15),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 7),
- BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_3, 12),
- BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 14),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_4),
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, len)),
- BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 49),
- BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 49),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_3),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_3, 4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "direct packet access: test3",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid bpf_context access off=76",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
- },
- {
- "direct packet access: test4 (write)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "direct packet access: test5 (pkt_end >= reg, good access)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "direct packet access: test6 (pkt_end >= reg, bad access)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid access to packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "direct packet access: test7 (pkt_end >= reg, both accesses)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid access to packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "direct packet access: test8 (double test, variant 1)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 4),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "direct packet access: test9 (double test, variant 2)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "direct packet access: test10 (write invalid)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid access to packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "direct packet access: test11 (shift, good access)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8),
- BPF_MOV64_IMM(BPF_REG_3, 144),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23),
- BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 3),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .retval = 1,
- },
- {
- "direct packet access: test12 (and, good access)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8),
- BPF_MOV64_IMM(BPF_REG_3, 144),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .retval = 1,
- },
- {
- "direct packet access: test13 (branches, good access)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 13),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_MOV64_IMM(BPF_REG_4, 1),
- BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_4, 2),
- BPF_MOV64_IMM(BPF_REG_3, 14),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_MOV64_IMM(BPF_REG_3, 24),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .retval = 1,
- },
- {
- "direct packet access: test14 (pkt_ptr += 0, CONST_IMM, good access)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 7),
- BPF_MOV64_IMM(BPF_REG_5, 12),
- BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 4),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_6, 0),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .retval = 1,
- },
- {
- "direct packet access: test15 (spill with xadd)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8),
- BPF_MOV64_IMM(BPF_REG_5, 4096),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
- BPF_STX_XADD(BPF_DW, BPF_REG_4, BPF_REG_5, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0),
- BPF_STX_MEM(BPF_W, BPF_REG_2, BPF_REG_5, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R2 invalid mem access 'inv'",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "direct packet access: test16 (arith on data_end)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 16),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R3 pointer arithmetic on PTR_TO_PACKET_END",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "direct packet access: test17 (pruning, alignment)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 14),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_7, 1, 4),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, -4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
- BPF_JMP_A(-6),
- },
- .errstr = "misaligned packet access off 2+(0x0; 0x0)+15+-4 size 4",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
- },
- {
- "direct packet access: test18 (imm += pkt_ptr, 1)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_IMM(BPF_REG_0, 8),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "direct packet access: test19 (imm += pkt_ptr, 2)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
- BPF_MOV64_IMM(BPF_REG_4, 4),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2),
- BPF_STX_MEM(BPF_B, BPF_REG_4, BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "direct packet access: test20 (x += pkt_ptr, 1)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_IMM(BPF_REG_0, 0xffffffff),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0x7fff),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_4),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0x7fff - 1),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
- BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "direct packet access: test21 (x += pkt_ptr, 2)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 9),
- BPF_MOV64_IMM(BPF_REG_4, 0xffffffff),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_4, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_4, 0x7fff),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_4),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0x7fff - 1),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
- BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "direct packet access: test22 (x += pkt_ptr, 3)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_3, -16),
- BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_10, -16),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 11),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8),
- BPF_MOV64_IMM(BPF_REG_4, 0xffffffff),
- BPF_STX_XADD(BPF_DW, BPF_REG_10, BPF_REG_4, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
- BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 49),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
- BPF_MOV64_IMM(BPF_REG_2, 1),
- BPF_STX_MEM(BPF_H, BPF_REG_4, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "direct packet access: test23 (x += pkt_ptr, 4)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xffff),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_0, 31),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_4),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0xffff - 1),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = REJECT,
- .errstr = "invalid access to packet, off=0 size=8, R5(id=1,off=0,r=0)",
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "direct packet access: test24 (x += pkt_ptr, 5)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_IMM(BPF_REG_0, 0xffffffff),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xff),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_0, 64),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_4),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x7fff - 1),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "direct packet access: test25 (marking on <, good access)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_0, BPF_REG_3, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, -4),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "direct packet access: test26 (marking on <, bad access)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_0, BPF_REG_3, 3),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_JMP_IMM(BPF_JA, 0, 0, -3),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "direct packet access: test27 (marking on <=, good access)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_0, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .retval = 1,
- },
- {
- "direct packet access: test28 (marking on <=, bad access)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, -4),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to packet: test1, valid packet_ptr range",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_update_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 5 },
- .result_unpriv = ACCEPT,
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "helper access to packet: test2, unchecked packet_ptr",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 1 },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "helper access to packet: test3, variable add",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10),
- BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_4),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_4),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 11 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "helper access to packet: test4, packet_ptr with bad range",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 7 },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "helper access to packet: test5, packet_ptr with too short range",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 6 },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "helper access to packet: test6, cls valid packet_ptr range",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_update_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 5 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to packet: test7, cls unchecked packet_ptr",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 1 },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to packet: test8, cls variable add",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10),
- BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_4),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_4),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 11 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to packet: test9, cls packet_ptr with bad range",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 7 },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to packet: test10, cls packet_ptr with too short range",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 6 },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to packet: test11, cls unsuitable helper 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_7, 4),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_4, 42),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_store_bytes),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "helper access to the packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to packet: test12, cls unsuitable helper 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 3),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_4, 4),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "helper access to the packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to packet: test13, cls helper ok",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to packet: test14, cls helper ok sub",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 4),
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to packet: test15, cls helper fail sub",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 12),
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to packet: test16, cls helper fail range 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_2, 8),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to packet: test17, cls helper fail range 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_2, -9),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R2 min value is negative",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to packet: test18, cls helper fail range 3",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_2, ~0),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R2 min value is negative",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to packet: test19, cls helper range zero",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to packet: test20, pkt end as input",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R1 type=pkt_end expected=fp",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to packet: test21, wrong reg",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
- BPF_MOV64_IMM(BPF_REG_2, 4),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_csum_diff),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "valid map access into an array with a constant",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
- offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "valid map access into an array with a register",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_IMM(BPF_REG_1, 4),
- BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
- offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "valid map access into an array with a variable",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 3),
- BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
- offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "valid map access into an array with a signed variable",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 0xffffffff, 1),
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES),
- BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1),
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
- offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "invalid map access into an array with a constant",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, (MAX_ENTRIES + 1) << 2,
- offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "invalid access to map value, value_size=48 off=48 size=8",
- .result = REJECT,
- },
- {
- "invalid map access into an array with a register",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_IMM(BPF_REG_1, MAX_ENTRIES + 1),
- BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
- offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "R0 min value is outside of the array range",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "invalid map access into an array with a variable",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
- BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
- offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "R0 unbounded memory access, make sure to bounds check any array access into a map",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "invalid map access into an array with no floor check",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
- BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES),
- BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1),
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
- offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .errstr = "R0 unbounded memory access",
- .result_unpriv = REJECT,
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "invalid map access into an array with a invalid max check",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
- BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES + 1),
- BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
- offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .errstr = "invalid access to map value, value_size=48 off=44 size=8",
- .result_unpriv = REJECT,
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "invalid map access into an array with a invalid max check",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
- BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
- offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3, 11 },
- .errstr = "R0 pointer += pointer",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "valid cgroup storage access",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_get_local_storage),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .fixup_cgroup_storage = { 1 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
- },
- {
- "invalid cgroup storage access 1",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_get_local_storage),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 1 },
- .result = REJECT,
- .errstr = "cannot pass map_type 1 into func bpf_get_local_storage",
- .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
- },
- {
- "invalid cgroup storage access 2",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 1),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_get_local_storage),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "fd 1 is not pointing to valid bpf_map",
- .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
- },
- {
- "invalid per-cgroup storage access 3",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_get_local_storage),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 256),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_cgroup_storage = { 1 },
- .result = REJECT,
- .errstr = "invalid access to map value, value_size=64 off=256 size=4",
- .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
- },
- {
- "invalid cgroup storage access 4",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_get_local_storage),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, -2),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1),
- BPF_EXIT_INSN(),
- },
- .fixup_cgroup_storage = { 1 },
- .result = REJECT,
- .errstr = "invalid access to map value, value_size=64 off=-2 size=4",
- .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "invalid cgroup storage access 5",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 7),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_get_local_storage),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .fixup_cgroup_storage = { 1 },
- .result = REJECT,
- .errstr = "get_local_storage() doesn't support non-zero flags",
- .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
- },
- {
- "invalid cgroup storage access 6",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_1),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_get_local_storage),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .fixup_cgroup_storage = { 1 },
- .result = REJECT,
- .errstr = "get_local_storage() doesn't support non-zero flags",
- .errstr_unpriv = "R2 leaks addr into helper function",
- .prog_type = BPF_PROG_TYPE_CGROUP_SKB,
- },
- {
- "multiple registers share map_lookup_elem result",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_1, 10),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 4 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS
- },
- {
- "alu ops on ptr_to_map_value_or_null, 1",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_1, 10),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 2),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 4 },
- .errstr = "R4 pointer arithmetic on PTR_TO_MAP_VALUE_OR_NULL",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS
- },
- {
- "alu ops on ptr_to_map_value_or_null, 2",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_1, 10),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_4, -1),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 4 },
- .errstr = "R4 pointer arithmetic on PTR_TO_MAP_VALUE_OR_NULL",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS
- },
- {
- "alu ops on ptr_to_map_value_or_null, 3",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_1, 10),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
- BPF_ALU64_IMM(BPF_LSH, BPF_REG_4, 1),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 4 },
- .errstr = "R4 pointer arithmetic on PTR_TO_MAP_VALUE_OR_NULL",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS
- },
- {
- "invalid memory access with multiple map_lookup_elem calls",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_1, 10),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 4 },
- .result = REJECT,
- .errstr = "R4 !read_ok",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS
- },
- {
- "valid indirect map_lookup_elem access with 2nd lookup in branch",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_1, 10),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_2, 10),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 3),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 4 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS
- },
- {
- "invalid map access from else condition",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES-1, 1),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1),
- BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "R0 unbounded memory access",
- .result = REJECT,
- .errstr_unpriv = "R0 leaks addr",
- .result_unpriv = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "constant register |= constant should keep constant type",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48),
- BPF_MOV64_IMM(BPF_REG_2, 34),
- BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 13),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "constant register |= constant should not bypass stack boundary checks",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48),
- BPF_MOV64_IMM(BPF_REG_2, 34),
- BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 24),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid stack type R1 off=-48 access_size=58",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "constant register |= constant register should keep constant type",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48),
- BPF_MOV64_IMM(BPF_REG_2, 34),
- BPF_MOV64_IMM(BPF_REG_4, 13),
- BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "constant register |= constant register should not bypass stack boundary checks",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48),
- BPF_MOV64_IMM(BPF_REG_2, 34),
- BPF_MOV64_IMM(BPF_REG_4, 24),
- BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid stack type R1 off=-48 access_size=58",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "invalid direct packet write for LWT_IN",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "cannot write into packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_LWT_IN,
- },
- {
- "invalid direct packet write for LWT_OUT",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "cannot write into packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_LWT_OUT,
- },
- {
- "direct packet write for LWT_XMIT",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_LWT_XMIT,
- },
- {
- "direct packet read for LWT_IN",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_LWT_IN,
- },
- {
- "direct packet read for LWT_OUT",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_LWT_OUT,
- },
- {
- "direct packet read for LWT_XMIT",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_LWT_XMIT,
- },
- {
- "overlapping checks for direct packet access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_LWT_XMIT,
- },
- {
- "make headroom for LWT_XMIT",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_IMM(BPF_REG_2, 34),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_skb_change_head),
- /* split for s390 to succeed */
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_2, 42),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_skb_change_head),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_LWT_XMIT,
- },
- {
- "invalid access of tc_classid for LWT_IN",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, tc_classid)),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid bpf_context access",
- },
- {
- "invalid access of tc_classid for LWT_OUT",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, tc_classid)),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid bpf_context access",
- },
- {
- "invalid access of tc_classid for LWT_XMIT",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, tc_classid)),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid bpf_context access",
- },
- {
- "leak pointer into ctx 1",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[0])),
- BPF_LD_MAP_FD(BPF_REG_2, 0),
- BPF_STX_XADD(BPF_DW, BPF_REG_1, BPF_REG_2,
- offsetof(struct __sk_buff, cb[0])),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 2 },
- .errstr_unpriv = "R2 leaks addr into mem",
- .result_unpriv = REJECT,
- .result = REJECT,
- .errstr = "BPF_XADD stores into R1 context is not allowed",
- },
- {
- "leak pointer into ctx 2",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
- offsetof(struct __sk_buff, cb[0])),
- BPF_STX_XADD(BPF_DW, BPF_REG_1, BPF_REG_10,
- offsetof(struct __sk_buff, cb[0])),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R10 leaks addr into mem",
- .result_unpriv = REJECT,
- .result = REJECT,
- .errstr = "BPF_XADD stores into R1 context is not allowed",
- },
- {
- "leak pointer into ctx 3",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_LD_MAP_FD(BPF_REG_2, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2,
- offsetof(struct __sk_buff, cb[0])),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 1 },
- .errstr_unpriv = "R2 leaks addr into ctx",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "leak pointer into map val",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
- BPF_STX_XADD(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 4 },
- .errstr_unpriv = "R6 leaks addr into mem",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "helper access to map: full range",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to map: partial range",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_2, 8),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to map: empty range",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_EMIT_CALL(BPF_FUNC_trace_printk),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "invalid access to map value, value_size=48 off=0 size=0",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to map: out-of-bound range",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val) + 8),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "invalid access to map value, value_size=48 off=0 size=56",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to map: negative range",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_2, -8),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "R2 min value is negative",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to adjusted map (via const imm): full range",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
- offsetof(struct test_val, foo)),
- BPF_MOV64_IMM(BPF_REG_2,
- sizeof(struct test_val) -
- offsetof(struct test_val, foo)),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to adjusted map (via const imm): partial range",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
- offsetof(struct test_val, foo)),
- BPF_MOV64_IMM(BPF_REG_2, 8),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to adjusted map (via const imm): empty range",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
- offsetof(struct test_val, foo)),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_EMIT_CALL(BPF_FUNC_trace_printk),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "invalid access to map value, value_size=48 off=4 size=0",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to adjusted map (via const imm): out-of-bound range",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
- offsetof(struct test_val, foo)),
- BPF_MOV64_IMM(BPF_REG_2,
- sizeof(struct test_val) -
- offsetof(struct test_val, foo) + 8),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "invalid access to map value, value_size=48 off=4 size=52",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to adjusted map (via const imm): negative range (> adjustment)",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
- offsetof(struct test_val, foo)),
- BPF_MOV64_IMM(BPF_REG_2, -8),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "R2 min value is negative",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to adjusted map (via const imm): negative range (< adjustment)",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
- offsetof(struct test_val, foo)),
- BPF_MOV64_IMM(BPF_REG_2, -1),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "R2 min value is negative",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to adjusted map (via const reg): full range",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_3,
- offsetof(struct test_val, foo)),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_MOV64_IMM(BPF_REG_2,
- sizeof(struct test_val) -
- offsetof(struct test_val, foo)),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to adjusted map (via const reg): partial range",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_3,
- offsetof(struct test_val, foo)),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_MOV64_IMM(BPF_REG_2, 8),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to adjusted map (via const reg): empty range",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_EMIT_CALL(BPF_FUNC_trace_printk),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "R1 min value is outside of the array range",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to adjusted map (via const reg): out-of-bound range",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_3,
- offsetof(struct test_val, foo)),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_MOV64_IMM(BPF_REG_2,
- sizeof(struct test_val) -
- offsetof(struct test_val, foo) + 8),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "invalid access to map value, value_size=48 off=4 size=52",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to adjusted map (via const reg): negative range (> adjustment)",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_3,
- offsetof(struct test_val, foo)),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_MOV64_IMM(BPF_REG_2, -8),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "R2 min value is negative",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to adjusted map (via const reg): negative range (< adjustment)",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_3,
- offsetof(struct test_val, foo)),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_MOV64_IMM(BPF_REG_2, -1),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "R2 min value is negative",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to adjusted map (via variable): full range",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_3,
- offsetof(struct test_val, foo), 4),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_MOV64_IMM(BPF_REG_2,
- sizeof(struct test_val) -
- offsetof(struct test_val, foo)),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to adjusted map (via variable): partial range",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_3,
- offsetof(struct test_val, foo), 4),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_MOV64_IMM(BPF_REG_2, 8),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to adjusted map (via variable): empty range",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_3,
- offsetof(struct test_val, foo), 3),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_EMIT_CALL(BPF_FUNC_trace_printk),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "R1 min value is outside of the array range",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to adjusted map (via variable): no max check",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_MOV64_IMM(BPF_REG_2, 1),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "R1 unbounded memory access",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to adjusted map (via variable): wrong max check",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_3,
- offsetof(struct test_val, foo), 4),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_MOV64_IMM(BPF_REG_2,
- sizeof(struct test_val) -
- offsetof(struct test_val, foo) + 1),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "invalid access to map value, value_size=48 off=4 size=45",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to map: bounds check using <, good access",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JLT, BPF_REG_3, 32, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to map: bounds check using <, bad access",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JLT, BPF_REG_3, 32, 4),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = REJECT,
- .errstr = "R1 unbounded memory access",
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to map: bounds check using <=, good access",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JLE, BPF_REG_3, 32, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to map: bounds check using <=, bad access",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JLE, BPF_REG_3, 32, 4),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = REJECT,
- .errstr = "R1 unbounded memory access",
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to map: bounds check using s<, good access",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 0, -3),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to map: bounds check using s<, good access 2",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, -3, -3),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to map: bounds check using s<, bad access",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, -3, -3),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = REJECT,
- .errstr = "R1 min value is negative",
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to map: bounds check using s<=, good access",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 0, -3),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to map: bounds check using s<=, good access 2",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, -3, -3),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to map: bounds check using s<=, bad access",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, -3, -3),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = REJECT,
- .errstr = "R1 min value is negative",
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "map lookup helper access to map",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_EXIT_INSN(),
- },
- .fixup_map3 = { 3, 8 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "map update helper access to map",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_update_elem),
- BPF_EXIT_INSN(),
- },
- .fixup_map3 = { 3, 10 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "map update helper access to map: wrong size",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_update_elem),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .fixup_map3 = { 10 },
- .result = REJECT,
- .errstr = "invalid access to map value, value_size=8 off=0 size=16",
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "map helper access to adjusted map (via const imm)",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2,
- offsetof(struct other_val, bar)),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_EXIT_INSN(),
- },
- .fixup_map3 = { 3, 9 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "map helper access to adjusted map (via const imm): out-of-bound 1",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2,
- sizeof(struct other_val) - 4),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_EXIT_INSN(),
- },
- .fixup_map3 = { 3, 9 },
- .result = REJECT,
- .errstr = "invalid access to map value, value_size=16 off=12 size=8",
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "map helper access to adjusted map (via const imm): out-of-bound 2",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_EXIT_INSN(),
- },
- .fixup_map3 = { 3, 9 },
- .result = REJECT,
- .errstr = "invalid access to map value, value_size=16 off=-4 size=8",
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "map helper access to adjusted map (via const reg)",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_3,
- offsetof(struct other_val, bar)),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_3),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_EXIT_INSN(),
- },
- .fixup_map3 = { 3, 10 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "map helper access to adjusted map (via const reg): out-of-bound 1",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_3,
- sizeof(struct other_val) - 4),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_3),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_EXIT_INSN(),
- },
- .fixup_map3 = { 3, 10 },
- .result = REJECT,
- .errstr = "invalid access to map value, value_size=16 off=12 size=8",
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "map helper access to adjusted map (via const reg): out-of-bound 2",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_3, -4),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_3),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_EXIT_INSN(),
- },
- .fixup_map3 = { 3, 10 },
- .result = REJECT,
- .errstr = "invalid access to map value, value_size=16 off=-4 size=8",
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "map helper access to adjusted map (via variable)",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_3,
- offsetof(struct other_val, bar), 4),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_3),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_EXIT_INSN(),
- },
- .fixup_map3 = { 3, 11 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "map helper access to adjusted map (via variable): no max check",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_3),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_EXIT_INSN(),
- },
- .fixup_map3 = { 3, 10 },
- .result = REJECT,
- .errstr = "R2 unbounded memory access, make sure to bounds check any array access into a map",
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "map helper access to adjusted map (via variable): wrong max check",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_3,
- offsetof(struct other_val, bar) + 1, 4),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_3),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_EXIT_INSN(),
- },
- .fixup_map3 = { 3, 11 },
- .result = REJECT,
- .errstr = "invalid access to map value, value_size=16 off=9 size=8",
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "map element value is preserved across register spilling",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0),
- BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .result = ACCEPT,
- .result_unpriv = REJECT,
- },
- {
- "map element value or null is marked on register spilling",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -152),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
- BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0),
- BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .result = ACCEPT,
- .result_unpriv = REJECT,
- },
- {
- "map element value store of cleared call register",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr_unpriv = "R1 !read_ok",
- .errstr = "R1 !read_ok",
- .result = REJECT,
- .result_unpriv = REJECT,
- },
- {
- "map element value with unaligned store",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 17),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 2, 43),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, -2, 44),
- BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
- BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 32),
- BPF_ST_MEM(BPF_DW, BPF_REG_8, 2, 33),
- BPF_ST_MEM(BPF_DW, BPF_REG_8, -2, 34),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_8, 5),
- BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 22),
- BPF_ST_MEM(BPF_DW, BPF_REG_8, 4, 23),
- BPF_ST_MEM(BPF_DW, BPF_REG_8, -7, 24),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_8),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, 3),
- BPF_ST_MEM(BPF_DW, BPF_REG_7, 0, 22),
- BPF_ST_MEM(BPF_DW, BPF_REG_7, 4, 23),
- BPF_ST_MEM(BPF_DW, BPF_REG_7, -4, 24),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .result = ACCEPT,
- .result_unpriv = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "map element value with unaligned load",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 9),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3),
- BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 2),
- BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 5),
- BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 4),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .result = ACCEPT,
- .result_unpriv = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "map element value illegal alu op, 1",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 8),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "R0 bitwise operator &= on pointer",
- .result = REJECT,
- },
- {
- "map element value illegal alu op, 2",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
- BPF_ALU32_IMM(BPF_ADD, BPF_REG_0, 0),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "R0 32-bit pointer arithmetic prohibited",
- .result = REJECT,
- },
- {
- "map element value illegal alu op, 3",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
- BPF_ALU64_IMM(BPF_DIV, BPF_REG_0, 42),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "R0 pointer arithmetic with /= operator",
- .result = REJECT,
- },
- {
- "map element value illegal alu op, 4",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
- BPF_ENDIAN(BPF_FROM_BE, BPF_REG_0, 64),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr_unpriv = "R0 pointer arithmetic prohibited",
- .errstr = "invalid mem access 'inv'",
- .result = REJECT,
- .result_unpriv = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "map element value illegal alu op, 5",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
- BPF_MOV64_IMM(BPF_REG_3, 4096),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
- BPF_STX_XADD(BPF_DW, BPF_REG_2, BPF_REG_3, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 0),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "R0 invalid mem access 'inv'",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "map element value is preserved across register spilling",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0,
- offsetof(struct test_val, foo)),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0),
- BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .result = ACCEPT,
- .result_unpriv = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "helper access to variable memory: stack, bitwise AND + JMP, correct bounds",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
- BPF_MOV64_IMM(BPF_REG_2, 16),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: stack, bitwise AND, zero included",
- .insns = {
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, 8),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid indirect read from stack off -64+0 size 64",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: stack, bitwise AND + JMP, wrong max",
- .insns = {
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, 8),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 65),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid stack type R1 off=-64 access_size=65",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: stack, JMP, correct bounds",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
- BPF_MOV64_IMM(BPF_REG_2, 16),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 4),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: stack, JMP (signed), correct bounds",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
- BPF_MOV64_IMM(BPF_REG_2, 16),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 4),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: stack, JMP, bounds + offset",
- .insns = {
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, 8),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 5),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 3),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid stack type R1 off=-64 access_size=65",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: stack, JMP, wrong max",
- .insns = {
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, 8),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 65, 4),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid stack type R1 off=-64 access_size=65",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: stack, JMP, no max check",
- .insns = {
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, 8),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- /* because max wasn't checked, signed min is negative */
- .errstr = "R2 min value is negative, either use unsigned or 'var &= const'",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: stack, JMP, no min check",
- .insns = {
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, 8),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 3),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid indirect read from stack off -64+0 size 64",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: stack, JMP (signed), no min check",
- .insns = {
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, 8),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 3),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R2 min value is negative",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: map, JMP, correct bounds",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_2,
- sizeof(struct test_val), 4),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: map, JMP, wrong max",
- .insns = {
- BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_6),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_2,
- sizeof(struct test_val) + 1, 4),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 4 },
- .errstr = "invalid access to map value, value_size=48 off=0 size=49",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: map adjusted, JMP, correct bounds",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20),
- BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_2,
- sizeof(struct test_val) - 20, 4),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: map adjusted, JMP, wrong max",
- .insns = {
- BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_6),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_2,
- sizeof(struct test_val) - 19, 4),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 4 },
- .errstr = "R1 min value is outside of the array range",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: size = 0 allowed on NULL (ARG_PTR_TO_MEM_OR_NULL)",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_1, 0),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_EMIT_CALL(BPF_FUNC_csum_diff),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to variable memory: size > 0 not allowed on NULL (ARG_PTR_TO_MEM_OR_NULL)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
- BPF_MOV64_IMM(BPF_REG_1, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_EMIT_CALL(BPF_FUNC_csum_diff),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 type=inv expected=fp",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to variable memory: size = 0 allowed on != NULL stack pointer (ARG_PTR_TO_MEM_OR_NULL)",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, 0),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 8),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_EMIT_CALL(BPF_FUNC_csum_diff),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to variable memory: size = 0 allowed on != NULL map pointer (ARG_PTR_TO_MEM_OR_NULL)",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_EMIT_CALL(BPF_FUNC_csum_diff),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to variable memory: size possible = 0 allowed on != NULL stack pointer (ARG_PTR_TO_MEM_OR_NULL)",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 8, 7),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_EMIT_CALL(BPF_FUNC_csum_diff),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to variable memory: size possible = 0 allowed on != NULL map pointer (ARG_PTR_TO_MEM_OR_NULL)",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 8, 4),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_EMIT_CALL(BPF_FUNC_csum_diff),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "helper access to variable memory: size possible = 0 allowed on != NULL packet pointer (ARG_PTR_TO_MEM_OR_NULL)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 7),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 0),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 8, 4),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_EMIT_CALL(BPF_FUNC_csum_diff),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .retval = 0 /* csum_diff of 64-byte packet */,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "helper access to variable memory: size = 0 not allowed on NULL (!ARG_PTR_TO_MEM_OR_NULL)",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_1, 0),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 type=inv expected=fp",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: size > 0 not allowed on NULL (!ARG_PTR_TO_MEM_OR_NULL)",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_1, 0),
- BPF_MOV64_IMM(BPF_REG_2, 1),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 type=inv expected=fp",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: size = 0 allowed on != NULL stack pointer (!ARG_PTR_TO_MEM_OR_NULL)",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: size = 0 allowed on != NULL map pointer (!ARG_PTR_TO_MEM_OR_NULL)",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: size possible = 0 allowed on != NULL stack pointer (!ARG_PTR_TO_MEM_OR_NULL)",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 8, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: size possible = 0 allowed on != NULL map pointer (!ARG_PTR_TO_MEM_OR_NULL)",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 8, 2),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: 8 bytes leak",
- .insns = {
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, 8),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 63),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
- BPF_EXIT_INSN(),
- },
- .errstr = "invalid indirect read from stack off -64+32 size 64",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "helper access to variable memory: 8 bytes no leak (init memory)",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 32),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 32),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_EMIT_CALL(BPF_FUNC_probe_read),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "invalid and of negative number",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_1, -4),
- BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
- offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "R0 max value is outside of the array range",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "invalid range check",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 12),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_9, 1),
- BPF_ALU32_IMM(BPF_MOD, BPF_REG_1, 2),
- BPF_ALU32_IMM(BPF_ADD, BPF_REG_1, 1),
- BPF_ALU32_REG(BPF_AND, BPF_REG_9, BPF_REG_1),
- BPF_ALU32_IMM(BPF_ADD, BPF_REG_9, 1),
- BPF_ALU32_IMM(BPF_RSH, BPF_REG_9, 1),
- BPF_MOV32_IMM(BPF_REG_3, 1),
- BPF_ALU32_REG(BPF_SUB, BPF_REG_3, BPF_REG_9),
- BPF_ALU32_IMM(BPF_MUL, BPF_REG_3, 0x10000000),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3),
- BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_3, 0),
- BPF_MOV64_REG(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr = "R0 max value is outside of the array range",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "map in map access",
- .insns = {
- BPF_ST_MEM(0, BPF_REG_10, -4, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
- BPF_ST_MEM(0, BPF_REG_10, -4, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map_in_map = { 3 },
- .result = ACCEPT,
- },
- {
- "invalid inner map pointer",
- .insns = {
- BPF_ST_MEM(0, BPF_REG_10, -4, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_ST_MEM(0, BPF_REG_10, -4, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map_in_map = { 3 },
- .errstr = "R1 pointer arithmetic on CONST_PTR_TO_MAP prohibited",
- .result = REJECT,
- },
- {
- "forgot null checking on the inner map pointer",
- .insns = {
- BPF_ST_MEM(0, BPF_REG_10, -4, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_ST_MEM(0, BPF_REG_10, -4, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map_in_map = { 3 },
- .errstr = "R1 type=map_value_or_null expected=map_ptr",
- .result = REJECT,
- },
- {
- "ld_abs: check calling conv, r1",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_IMM(BPF_REG_1, 0),
- BPF_LD_ABS(BPF_W, -0x200000),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 !read_ok",
- .result = REJECT,
- },
- {
- "ld_abs: check calling conv, r2",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_LD_ABS(BPF_W, -0x200000),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_EXIT_INSN(),
- },
- .errstr = "R2 !read_ok",
- .result = REJECT,
- },
- {
- "ld_abs: check calling conv, r3",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_LD_ABS(BPF_W, -0x200000),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
- BPF_EXIT_INSN(),
- },
- .errstr = "R3 !read_ok",
- .result = REJECT,
- },
- {
- "ld_abs: check calling conv, r4",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_LD_ABS(BPF_W, -0x200000),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
- BPF_EXIT_INSN(),
- },
- .errstr = "R4 !read_ok",
- .result = REJECT,
- },
- {
- "ld_abs: check calling conv, r5",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_LD_ABS(BPF_W, -0x200000),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
- BPF_EXIT_INSN(),
- },
- .errstr = "R5 !read_ok",
- .result = REJECT,
- },
- {
- "ld_abs: check calling conv, r7",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_IMM(BPF_REG_7, 0),
- BPF_LD_ABS(BPF_W, -0x200000),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- },
- {
- "ld_abs: tests on r6 and skb data reload helper",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_LD_ABS(BPF_B, 0),
- BPF_LD_ABS(BPF_H, 0),
- BPF_LD_ABS(BPF_W, 0),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_6, 0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
- BPF_MOV64_IMM(BPF_REG_2, 1),
- BPF_MOV64_IMM(BPF_REG_3, 2),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_vlan_push),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_7),
- BPF_LD_ABS(BPF_B, 0),
- BPF_LD_ABS(BPF_H, 0),
- BPF_LD_ABS(BPF_W, 0),
- BPF_MOV64_IMM(BPF_REG_0, 42),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 42 /* ultimate return value */,
- },
- {
- "ld_ind: check calling conv, r1",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_IMM(BPF_REG_1, 1),
- BPF_LD_IND(BPF_W, BPF_REG_1, -0x200000),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 !read_ok",
- .result = REJECT,
- },
- {
- "ld_ind: check calling conv, r2",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_IMM(BPF_REG_2, 1),
- BPF_LD_IND(BPF_W, BPF_REG_2, -0x200000),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_EXIT_INSN(),
- },
- .errstr = "R2 !read_ok",
- .result = REJECT,
- },
- {
- "ld_ind: check calling conv, r3",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_IMM(BPF_REG_3, 1),
- BPF_LD_IND(BPF_W, BPF_REG_3, -0x200000),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
- BPF_EXIT_INSN(),
- },
- .errstr = "R3 !read_ok",
- .result = REJECT,
- },
- {
- "ld_ind: check calling conv, r4",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_IMM(BPF_REG_4, 1),
- BPF_LD_IND(BPF_W, BPF_REG_4, -0x200000),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
- BPF_EXIT_INSN(),
- },
- .errstr = "R4 !read_ok",
- .result = REJECT,
- },
- {
- "ld_ind: check calling conv, r5",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_IMM(BPF_REG_5, 1),
- BPF_LD_IND(BPF_W, BPF_REG_5, -0x200000),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
- BPF_EXIT_INSN(),
- },
- .errstr = "R5 !read_ok",
- .result = REJECT,
- },
- {
- "ld_ind: check calling conv, r7",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_IMM(BPF_REG_7, 1),
- BPF_LD_IND(BPF_W, BPF_REG_7, -0x200000),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .retval = 1,
- },
- {
- "check bpf_perf_event_data->sample_period byte load permitted",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct bpf_perf_event_data, sample_period)),
-#else
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
- offsetof(struct bpf_perf_event_data, sample_period) + 7),
-#endif
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_PERF_EVENT,
- },
- {
- "check bpf_perf_event_data->sample_period half load permitted",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct bpf_perf_event_data, sample_period)),
-#else
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct bpf_perf_event_data, sample_period) + 6),
-#endif
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_PERF_EVENT,
- },
- {
- "check bpf_perf_event_data->sample_period word load permitted",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct bpf_perf_event_data, sample_period)),
-#else
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct bpf_perf_event_data, sample_period) + 4),
-#endif
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_PERF_EVENT,
- },
- {
- "check bpf_perf_event_data->sample_period dword load permitted",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
- offsetof(struct bpf_perf_event_data, sample_period)),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_PERF_EVENT,
- },
- {
- "check skb->data half load not permitted",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
-#else
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, data) + 2),
-#endif
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid bpf_context access",
- },
- {
- "check skb->tc_classid half load not permitted for lwt prog",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, tc_classid)),
-#else
- BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, tc_classid) + 2),
-#endif
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid bpf_context access",
- .prog_type = BPF_PROG_TYPE_LWT_IN,
- },
- {
- "bounds checks mixing signed and unsigned, positive bounds",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
- BPF_MOV64_IMM(BPF_REG_2, 2),
- BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 3),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 4, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "unbounded min value",
- .result = REJECT,
- },
- {
- "bounds checks mixing signed and unsigned",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
- BPF_MOV64_IMM(BPF_REG_2, -1),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 3),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "unbounded min value",
- .result = REJECT,
- },
- {
- "bounds checks mixing signed and unsigned, variant 2",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
- BPF_MOV64_IMM(BPF_REG_2, -1),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 5),
- BPF_MOV64_IMM(BPF_REG_8, 0),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_1),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_8, 1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8),
- BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "unbounded min value",
- .result = REJECT,
- },
- {
- "bounds checks mixing signed and unsigned, variant 3",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
- BPF_MOV64_IMM(BPF_REG_2, -1),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 4),
- BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_8, 1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8),
- BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "unbounded min value",
- .result = REJECT,
- },
- {
- "bounds checks mixing signed and unsigned, variant 4",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
- BPF_MOV64_IMM(BPF_REG_2, 1),
- BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .result = ACCEPT,
- },
- {
- "bounds checks mixing signed and unsigned, variant 5",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
- BPF_MOV64_IMM(BPF_REG_2, -1),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 5),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 4),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 4),
- BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "unbounded min value",
- .result = REJECT,
- },
- {
- "bounds checks mixing signed and unsigned, variant 6",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, -512),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -16),
- BPF_MOV64_IMM(BPF_REG_6, -1),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_6, 5),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_4, 1, 4),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 1),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_ST_MEM(BPF_H, BPF_REG_10, -512, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_load_bytes),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R4 min value is negative, either use unsigned",
- .result = REJECT,
- },
- {
- "bounds checks mixing signed and unsigned, variant 7",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
- BPF_MOV64_IMM(BPF_REG_2, 1024 * 1024 * 1024),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 3),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .result = ACCEPT,
- },
- {
- "bounds checks mixing signed and unsigned, variant 8",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
- BPF_MOV64_IMM(BPF_REG_2, -1),
- BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "unbounded min value",
- .result = REJECT,
- },
- {
- "bounds checks mixing signed and unsigned, variant 9",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
- BPF_LD_IMM64(BPF_REG_2, -9223372036854775808ULL),
- BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .result = ACCEPT,
- },
- {
- "bounds checks mixing signed and unsigned, variant 10",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "unbounded min value",
- .result = REJECT,
- },
- {
- "bounds checks mixing signed and unsigned, variant 11",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
- BPF_MOV64_IMM(BPF_REG_2, -1),
- BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
- /* Dead branch. */
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "unbounded min value",
- .result = REJECT,
- },
- {
- "bounds checks mixing signed and unsigned, variant 12",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
- BPF_MOV64_IMM(BPF_REG_2, -6),
- BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "unbounded min value",
- .result = REJECT,
- },
- {
- "bounds checks mixing signed and unsigned, variant 13",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
- BPF_MOV64_IMM(BPF_REG_2, 2),
- BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
- BPF_MOV64_IMM(BPF_REG_7, 1),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_1),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, 4, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_7),
- BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "unbounded min value",
- .result = REJECT,
- },
- {
- "bounds checks mixing signed and unsigned, variant 14",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_9, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
- BPF_MOV64_IMM(BPF_REG_2, -1),
- BPF_MOV64_IMM(BPF_REG_8, 2),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_9, 42, 6),
- BPF_JMP_REG(BPF_JSGT, BPF_REG_8, BPF_REG_1, 3),
- BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, -3),
- BPF_JMP_IMM(BPF_JA, 0, 0, -7),
- },
- .fixup_map1 = { 4 },
- .errstr = "unbounded min value",
- .result = REJECT,
- },
- {
- "bounds checks mixing signed and unsigned, variant 15",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
- BPF_MOV64_IMM(BPF_REG_2, -6),
- BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_0, 1, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "unbounded min value",
- .result = REJECT,
- .result_unpriv = REJECT,
- },
- {
- "subtraction bounds (map value) variant 1",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
- BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 0xff, 7),
- BPF_LDX_MEM(BPF_B, BPF_REG_3, BPF_REG_0, 1),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 0xff, 5),
- BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_3),
- BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 56),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "R0 max value is outside of the array range",
- .result = REJECT,
- },
- {
- "subtraction bounds (map value) variant 2",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8),
- BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 0xff, 6),
- BPF_LDX_MEM(BPF_B, BPF_REG_3, BPF_REG_0, 1),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 0xff, 4),
- BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_3),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.",
- .errstr_unpriv = "R1 has unknown scalar with mixed signed bounds",
- .result = REJECT,
- },
- {
- "bounds check based on zero-extended MOV",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- /* r2 = 0x0000'0000'ffff'ffff */
- BPF_MOV32_IMM(BPF_REG_2, 0xffffffff),
- /* r2 = 0 */
- BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 32),
- /* no-op */
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
- /* access at offset 0 */
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
- /* exit */
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .result = ACCEPT
- },
- {
- "bounds check based on sign-extended MOV. test1",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- /* r2 = 0xffff'ffff'ffff'ffff */
- BPF_MOV64_IMM(BPF_REG_2, 0xffffffff),
- /* r2 = 0xffff'ffff */
- BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 32),
- /* r0 = <oob pointer> */
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
- /* access to OOB pointer */
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
- /* exit */
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "map_value pointer and 4294967295",
- .result = REJECT
- },
- {
- "bounds check based on sign-extended MOV. test2",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- /* r2 = 0xffff'ffff'ffff'ffff */
- BPF_MOV64_IMM(BPF_REG_2, 0xffffffff),
- /* r2 = 0xfff'ffff */
- BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 36),
- /* r0 = <oob pointer> */
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
- /* access to OOB pointer */
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
- /* exit */
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "R0 min value is outside of the array range",
- .result = REJECT
- },
- {
- "bounds check based on reg_off + var_off + insn_off. test1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_6, 1),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, (1 << 29) - 1),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, (1 << 29) - 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 3),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 4 },
- .errstr = "value_size=8 off=1073741825",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "bounds check based on reg_off + var_off + insn_off. test2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_6, 1),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, (1 << 30) - 1),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, (1 << 29) - 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 3),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 4 },
- .errstr = "value 1073741823",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "bounds check after truncation of non-boundary-crossing range",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
- /* r1 = [0x00, 0xff] */
- BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_2, 1),
- /* r2 = 0x10'0000'0000 */
- BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 36),
- /* r1 = [0x10'0000'0000, 0x10'0000'00ff] */
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
- /* r1 = [0x10'7fff'ffff, 0x10'8000'00fe] */
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x7fffffff),
- /* r1 = [0x00, 0xff] */
- BPF_ALU32_IMM(BPF_SUB, BPF_REG_1, 0x7fffffff),
- /* r1 = 0 */
- BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 8),
- /* no-op */
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- /* access at offset 0 */
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
- /* exit */
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .result = ACCEPT
- },
- {
- "bounds check after truncation of boundary-crossing range (1)",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
- /* r1 = [0x00, 0xff] */
- BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0xffffff80 >> 1),
- /* r1 = [0xffff'ff80, 0x1'0000'007f] */
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0xffffff80 >> 1),
- /* r1 = [0xffff'ff80, 0xffff'ffff] or
- * [0x0000'0000, 0x0000'007f]
- */
- BPF_ALU32_IMM(BPF_ADD, BPF_REG_1, 0),
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 0xffffff80 >> 1),
- /* r1 = [0x00, 0xff] or
- * [0xffff'ffff'0000'0080, 0xffff'ffff'ffff'ffff]
- */
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 0xffffff80 >> 1),
- /* r1 = 0 or
- * [0x00ff'ffff'ff00'0000, 0x00ff'ffff'ffff'ffff]
- */
- BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 8),
- /* no-op or OOB pointer computation */
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- /* potentially OOB access */
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
- /* exit */
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- /* not actually fully unbounded, but the bound is very high */
- .errstr = "R0 unbounded memory access",
- .result = REJECT
- },
- {
- "bounds check after truncation of boundary-crossing range (2)",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
- /* r1 = [0x00, 0xff] */
- BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0xffffff80 >> 1),
- /* r1 = [0xffff'ff80, 0x1'0000'007f] */
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0xffffff80 >> 1),
- /* r1 = [0xffff'ff80, 0xffff'ffff] or
- * [0x0000'0000, 0x0000'007f]
- * difference to previous test: truncation via MOV32
- * instead of ALU32.
- */
- BPF_MOV32_REG(BPF_REG_1, BPF_REG_1),
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 0xffffff80 >> 1),
- /* r1 = [0x00, 0xff] or
- * [0xffff'ffff'0000'0080, 0xffff'ffff'ffff'ffff]
- */
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 0xffffff80 >> 1),
- /* r1 = 0 or
- * [0x00ff'ffff'ff00'0000, 0x00ff'ffff'ffff'ffff]
- */
- BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 8),
- /* no-op or OOB pointer computation */
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- /* potentially OOB access */
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
- /* exit */
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- /* not actually fully unbounded, but the bound is very high */
- .errstr = "R0 unbounded memory access",
- .result = REJECT
- },
- {
- "bounds check after wrapping 32-bit addition",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
- /* r1 = 0x7fff'ffff */
- BPF_MOV64_IMM(BPF_REG_1, 0x7fffffff),
- /* r1 = 0xffff'fffe */
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x7fffffff),
- /* r1 = 0 */
- BPF_ALU32_IMM(BPF_ADD, BPF_REG_1, 2),
- /* no-op */
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- /* access at offset 0 */
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
- /* exit */
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .result = ACCEPT
- },
- {
- "bounds check after shift with oversized count operand",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- BPF_MOV64_IMM(BPF_REG_2, 32),
- BPF_MOV64_IMM(BPF_REG_1, 1),
- /* r1 = (u32)1 << (u32)32 = ? */
- BPF_ALU32_REG(BPF_LSH, BPF_REG_1, BPF_REG_2),
- /* r1 = [0x0000, 0xffff] */
- BPF_ALU64_IMM(BPF_AND, BPF_REG_1, 0xffff),
- /* computes unknown pointer, potentially OOB */
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- /* potentially OOB access */
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
- /* exit */
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "R0 max value is outside of the array range",
- .result = REJECT
- },
- {
- "bounds check after right shift of maybe-negative number",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
- /* r1 = [0x00, 0xff] */
- BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
- /* r1 = [-0x01, 0xfe] */
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 1),
- /* r1 = 0 or 0xff'ffff'ffff'ffff */
- BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 8),
- /* r1 = 0 or 0xffff'ffff'ffff */
- BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 8),
- /* computes unknown pointer, potentially OOB */
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- /* potentially OOB access */
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
- /* exit */
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "R0 unbounded memory access",
- .result = REJECT
- },
- {
- "bounds check map access with off+size signed 32bit overflow. test1",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
- BPF_EXIT_INSN(),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x7ffffffe),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
- BPF_JMP_A(0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "map_value pointer and 2147483646",
- .result = REJECT
- },
- {
- "bounds check map access with off+size signed 32bit overflow. test2",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
- BPF_EXIT_INSN(),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x1fffffff),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x1fffffff),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x1fffffff),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
- BPF_JMP_A(0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "pointer offset 1073741822",
- .errstr_unpriv = "R0 pointer arithmetic of map value goes out of range",
- .result = REJECT
- },
- {
- "bounds check map access with off+size signed 32bit overflow. test3",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
- BPF_EXIT_INSN(),
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 0x1fffffff),
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 0x1fffffff),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 2),
- BPF_JMP_A(0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "pointer offset -1073741822",
- .errstr_unpriv = "R0 pointer arithmetic of map value goes out of range",
- .result = REJECT
- },
- {
- "bounds check map access with off+size signed 32bit overflow. test4",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_1, 1000000),
- BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 1000000),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 2),
- BPF_JMP_A(0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "map_value pointer and 1000000000000",
- .result = REJECT
- },
- {
- "pointer/scalar confusion in state equality check (way 1)",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
- BPF_JMP_A(1),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
- BPF_JMP_A(0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .result = ACCEPT,
- .retval = POINTER_VALUE,
- .result_unpriv = REJECT,
- .errstr_unpriv = "R0 leaks addr as return value"
- },
- {
- "pointer/scalar confusion in state equality check (way 2)",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
- BPF_JMP_A(1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .result = ACCEPT,
- .retval = POINTER_VALUE,
- .result_unpriv = REJECT,
- .errstr_unpriv = "R0 leaks addr as return value"
- },
- {
- "variable-offset ctx access",
- .insns = {
- /* Get an unknown value */
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
- /* Make it small and 4-byte aligned */
- BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4),
- /* add it to skb. We now have either &skb->len or
- * &skb->pkt_type, but we don't know which
- */
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
- /* dereference it */
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "variable ctx access var_off=(0x0; 0x4)",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_LWT_IN,
- },
- {
- "variable-offset stack access",
- .insns = {
- /* Fill the top 8 bytes of the stack */
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- /* Get an unknown value */
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
- /* Make it small and 4-byte aligned */
- BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4),
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_2, 8),
- /* add it to fp. We now have either fp-4 or fp-8, but
- * we don't know which
- */
- BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_10),
- /* dereference it */
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_2, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "variable stack access var_off=(0xfffffffffffffff8; 0x4)",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_LWT_IN,
- },
- {
- "indirect variable-offset stack access, out of bound",
- .insns = {
- /* Fill the top 8 bytes of the stack */
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- /* Get an unknown value */
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
- /* Make it small and 4-byte aligned */
- BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4),
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_2, 8),
- /* add it to fp. We now have either fp-4 or fp-8, but
- * we don't know which
- */
- BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_10),
- /* dereference it indirectly */
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 5 },
- .errstr = "invalid stack type R2 var_off",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_LWT_IN,
- },
- {
- "indirect variable-offset stack access, max_off+size > max_initialized",
- .insns = {
- /* Fill only the second from top 8 bytes of the stack. */
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, 0),
- /* Get an unknown value. */
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
- /* Make it small and 4-byte aligned. */
- BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4),
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_2, 16),
- /* Add it to fp. We now have either fp-12 or fp-16, but we don't know
- * which. fp-12 size 8 is partially uninitialized stack.
- */
- BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_10),
- /* Dereference it indirectly. */
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 5 },
- .errstr = "invalid indirect read from stack var_off",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_LWT_IN,
- },
- {
- "indirect variable-offset stack access, min_off < min_initialized",
- .insns = {
- /* Fill only the top 8 bytes of the stack. */
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- /* Get an unknown value */
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
- /* Make it small and 4-byte aligned. */
- BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4),
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_2, 16),
- /* Add it to fp. We now have either fp-12 or fp-16, but we don't know
- * which. fp-16 size 8 is partially uninitialized stack.
- */
- BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_10),
- /* Dereference it indirectly. */
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 5 },
- .errstr = "invalid indirect read from stack var_off",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_LWT_IN,
- },
- {
- "indirect variable-offset stack access, ok",
- .insns = {
- /* Fill the top 16 bytes of the stack. */
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, 0),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- /* Get an unknown value. */
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
- /* Make it small and 4-byte aligned. */
- BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4),
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_2, 16),
- /* Add it to fp. We now have either fp-12 or fp-16, we don't know
- * which, but either way it points to initialized stack.
- */
- BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_10),
- /* Dereference it indirectly. */
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 6 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_LWT_IN,
- },
- {
- "direct stack access with 32-bit wraparound. test1",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x7fffffff),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x7fffffff),
- BPF_MOV32_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
- BPF_EXIT_INSN()
- },
- .errstr = "fp pointer and 2147483647",
- .result = REJECT
- },
- {
- "direct stack access with 32-bit wraparound. test2",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x3fffffff),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x3fffffff),
- BPF_MOV32_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
- BPF_EXIT_INSN()
- },
- .errstr = "fp pointer and 1073741823",
- .result = REJECT
- },
- {
- "direct stack access with 32-bit wraparound. test3",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x1fffffff),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0x1fffffff),
- BPF_MOV32_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
- BPF_EXIT_INSN()
- },
- .errstr = "fp pointer offset 1073741822",
- .errstr_unpriv = "R1 stack pointer arithmetic goes out of range",
- .result = REJECT
- },
- {
- "liveness pruning and write screening",
- .insns = {
- /* Get an unknown value */
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
- /* branch conditions teach us nothing about R2 */
- BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R0 !read_ok",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_LWT_IN,
- },
- {
- "varlen_map_value_access pruning",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
- BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES),
- BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1),
- BPF_MOV32_IMM(BPF_REG_1, 0),
- BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 0),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
- offsetof(struct test_val, foo)),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 3 },
- .errstr_unpriv = "R0 leaks addr",
- .errstr = "R0 unbounded memory access",
- .result_unpriv = REJECT,
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "invalid 64-bit BPF_END",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_0, 0),
- {
- .code = BPF_ALU64 | BPF_END | BPF_TO_LE,
- .dst_reg = BPF_REG_0,
- .src_reg = 0,
- .off = 0,
- .imm = 32,
- },
- BPF_EXIT_INSN(),
- },
- .errstr = "unknown opcode d7",
- .result = REJECT,
- },
- {
- "XDP, using ifindex from netdev",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, ingress_ifindex)),
- BPF_JMP_IMM(BPF_JLT, BPF_REG_2, 1, 1),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .retval = 1,
- },
- {
- "meta access, test1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "meta access, test2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 8),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet, off=-8",
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "meta access, test3",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "meta access, test4",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "meta access, test5",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_4, 3),
- BPF_MOV64_IMM(BPF_REG_2, -8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_xdp_adjust_meta),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R3 !read_ok",
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "meta access, test6",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_0, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "meta access, test7",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "meta access, test8",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0xFFFF),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "meta access, test9",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0xFFFF),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 1),
- BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "meta access, test10",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_IMM(BPF_REG_5, 42),
- BPF_MOV64_IMM(BPF_REG_6, 24),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_5, -8),
- BPF_STX_XADD(BPF_DW, BPF_REG_10, BPF_REG_6, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_5, BPF_REG_10, -8),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_5, 100, 6),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_5),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_5, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "invalid access to packet",
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "meta access, test11",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_IMM(BPF_REG_5, 42),
- BPF_MOV64_IMM(BPF_REG_6, 24),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_5, -8),
- BPF_STX_XADD(BPF_DW, BPF_REG_10, BPF_REG_6, -8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_5, BPF_REG_10, -8),
- BPF_JMP_IMM(BPF_JGT, BPF_REG_5, 100, 6),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_5),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_5, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "meta access, test12",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 16),
- BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 5),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 0),
- BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 16),
- BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "arithmetic ops make PTR_TO_CTX unusable",
- .insns = {
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
- offsetof(struct __sk_buff, data) -
- offsetof(struct __sk_buff, mark)),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_EXIT_INSN(),
- },
- .errstr = "dereference of modified ctx ptr",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "pkt_end - pkt_start is allowed",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_2),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .retval = TEST_DATA_LEN,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "XDP pkt read, pkt_end mangling, bad access 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R3 pointer arithmetic on PTR_TO_PACKET_END",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "XDP pkt read, pkt_end mangling, bad access 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_ALU64_IMM(BPF_SUB, BPF_REG_3, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R3 pointer arithmetic on PTR_TO_PACKET_END",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "XDP pkt read, pkt_data' > pkt_end, good access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data' > pkt_end, bad access 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data' > pkt_end, bad access 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_end > pkt_data', good access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_end > pkt_data', bad access 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_end > pkt_data', bad access 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data' < pkt_end, good access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data' < pkt_end, bad access 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data' < pkt_end, bad access 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_end < pkt_data', good access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_end < pkt_data', bad access 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_end < pkt_data', bad access 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data' >= pkt_end, good access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data' >= pkt_end, bad access 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data' >= pkt_end, bad access 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_end >= pkt_data', good access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_end >= pkt_data', bad access 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_end >= pkt_data', bad access 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data' <= pkt_end, good access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data' <= pkt_end, bad access 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data' <= pkt_end, bad access 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_end <= pkt_data', good access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_end <= pkt_data', bad access 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_end <= pkt_data', bad access 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_meta' > pkt_data, good access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_meta' > pkt_data, bad access 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_meta' > pkt_data, bad access 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data > pkt_meta', good access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data > pkt_meta', bad access 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data > pkt_meta', bad access 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_meta' < pkt_data, good access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_meta' < pkt_data, bad access 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_meta' < pkt_data, bad access 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data < pkt_meta', good access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data < pkt_meta', bad access 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data < pkt_meta', bad access 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 0),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_meta' >= pkt_data, good access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_meta' >= pkt_data, bad access 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_meta' >= pkt_data, bad access 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data >= pkt_meta', good access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data >= pkt_meta', bad access 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data >= pkt_meta', bad access 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_meta' <= pkt_data, good access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_meta' <= pkt_data, bad access 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_meta' <= pkt_data, bad access 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data <= pkt_meta', good access",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data <= pkt_meta', bad access 1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "XDP pkt read, pkt_data <= pkt_meta', bad access 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data_meta)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R1 offset is outside of the packet",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "check deducing bounds from const, 1",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_JMP_IMM(BPF_JSGE, BPF_REG_0, 1, 0),
- BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R1 has pointer with unsupported alu operation",
- .errstr = "R0 tried to subtract pointer from scalar",
- .result = REJECT,
- },
- {
- "check deducing bounds from const, 2",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_JMP_IMM(BPF_JSGE, BPF_REG_0, 1, 1),
- BPF_EXIT_INSN(),
- BPF_JMP_IMM(BPF_JSLE, BPF_REG_0, 1, 1),
- BPF_EXIT_INSN(),
- BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_0),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R1 has pointer with unsupported alu operation",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- .retval = 1,
- },
- {
- "check deducing bounds from const, 3",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JSLE, BPF_REG_0, 0, 0),
- BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R1 has pointer with unsupported alu operation",
- .errstr = "R0 tried to subtract pointer from scalar",
- .result = REJECT,
- },
- {
- "check deducing bounds from const, 4",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JSLE, BPF_REG_0, 0, 1),
- BPF_EXIT_INSN(),
- BPF_JMP_IMM(BPF_JSGE, BPF_REG_0, 0, 1),
- BPF_EXIT_INSN(),
- BPF_ALU64_REG(BPF_SUB, BPF_REG_6, BPF_REG_0),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R6 has pointer with unsupported alu operation",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
- {
- "check deducing bounds from const, 5",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JSGE, BPF_REG_0, 1, 1),
- BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R1 has pointer with unsupported alu operation",
- .errstr = "R0 tried to subtract pointer from scalar",
- .result = REJECT,
- },
- {
- "check deducing bounds from const, 6",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JSGE, BPF_REG_0, 0, 1),
- BPF_EXIT_INSN(),
- BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R1 has pointer with unsupported alu operation",
- .errstr = "R0 tried to subtract pointer from scalar",
- .result = REJECT,
- },
- {
- "check deducing bounds from const, 7",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, ~0),
- BPF_JMP_IMM(BPF_JSGE, BPF_REG_0, 0, 0),
- BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R1 has pointer with unsupported alu operation",
- .errstr = "dereference of modified ctx ptr",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "check deducing bounds from const, 8",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, ~0),
- BPF_JMP_IMM(BPF_JSGE, BPF_REG_0, 0, 1),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R1 has pointer with unsupported alu operation",
- .errstr = "dereference of modified ctx ptr",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "check deducing bounds from const, 9",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JSGE, BPF_REG_0, 0, 0),
- BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "R1 has pointer with unsupported alu operation",
- .errstr = "R0 tried to subtract pointer from scalar",
- .result = REJECT,
- },
- {
- "check deducing bounds from const, 10",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JSLE, BPF_REG_0, 0, 0),
- /* Marks reg as unknown. */
- BPF_ALU64_IMM(BPF_NEG, BPF_REG_0, 0),
- BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .errstr = "math between ctx pointer and register with unbounded min value is not allowed",
- .result = REJECT,
- },
- {
- "bpf_exit with invalid return code. test1",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
- BPF_EXIT_INSN(),
- },
- .errstr = "R0 has value (0x0; 0xffffffff)",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
- },
- {
- "bpf_exit with invalid return code. test2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
- },
- {
- "bpf_exit with invalid return code. test3",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 3),
- BPF_EXIT_INSN(),
- },
- .errstr = "R0 has value (0x0; 0x3)",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
- },
- {
- "bpf_exit with invalid return code. test4",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
- },
- {
- "bpf_exit with invalid return code. test5",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 2),
- BPF_EXIT_INSN(),
- },
- .errstr = "R0 has value (0x2; 0x0)",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
- },
- {
- "bpf_exit with invalid return code. test6",
- .insns = {
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .errstr = "R0 is not a known value (ctx)",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
- },
- {
- "bpf_exit with invalid return code. test7",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 4),
- BPF_ALU64_REG(BPF_MUL, BPF_REG_0, BPF_REG_2),
- BPF_EXIT_INSN(),
- },
- .errstr = "R0 has unknown scalar value",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
- },
- {
- "calls: basic sanity",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 2),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .result = ACCEPT,
- },
- {
- "calls: not on unpriviledged",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 2),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "function calls to other bpf functions are allowed for root only",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- .retval = 1,
- },
- {
- "calls: div by 0 in subprog",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 8),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV32_IMM(BPF_REG_2, 0),
- BPF_MOV32_IMM(BPF_REG_3, 1),
- BPF_ALU32_REG(BPF_DIV, BPF_REG_3, BPF_REG_2),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 1,
- },
- {
- "calls: multiple ret types in subprog 1",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 8),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
- BPF_MOV32_IMM(BPF_REG_0, 42),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = REJECT,
- .errstr = "R0 invalid mem access 'inv'",
- },
- {
- "calls: multiple ret types in subprog 2",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 8),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
- BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 9),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_6,
- offsetof(struct __sk_buff, data)),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 64),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .fixup_map1 = { 16 },
- .result = REJECT,
- .errstr = "R0 min value is outside of the array range",
- },
- {
- "calls: overlapping caller/callee",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "last insn is not an exit or jmp",
- .result = REJECT,
- },
- {
- "calls: wrong recursive calls",
- .insns = {
- BPF_JMP_IMM(BPF_JA, 0, 0, 4),
- BPF_JMP_IMM(BPF_JA, 0, 0, 4),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -2),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -2),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -2),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "jump out of range",
- .result = REJECT,
- },
- {
- "calls: wrong src reg",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 2, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "BPF_CALL uses reserved fields",
- .result = REJECT,
- },
- {
- "calls: wrong off value",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, -1, 2),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 2),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "BPF_CALL uses reserved fields",
- .result = REJECT,
- },
- {
- "calls: jump back loop",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -1),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "back-edge from insn 0 to 0",
- .result = REJECT,
- },
- {
- "calls: conditional call",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 2),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "jump out of range",
- .result = REJECT,
- },
- {
- "calls: conditional call 2",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 2),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 3),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .result = ACCEPT,
- },
- {
- "calls: conditional call 3",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
- BPF_JMP_IMM(BPF_JA, 0, 0, 4),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, -6),
- BPF_MOV64_IMM(BPF_REG_0, 3),
- BPF_JMP_IMM(BPF_JA, 0, 0, -6),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "back-edge from insn",
- .result = REJECT,
- },
- {
- "calls: conditional call 4",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, -5),
- BPF_MOV64_IMM(BPF_REG_0, 3),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .result = ACCEPT,
- },
- {
- "calls: conditional call 5",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, -6),
- BPF_MOV64_IMM(BPF_REG_0, 3),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "back-edge from insn",
- .result = REJECT,
- },
- {
- "calls: conditional call 6",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, -2),
- BPF_EXIT_INSN(),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "back-edge from insn",
- .result = REJECT,
- },
- {
- "calls: using r0 returned by callee",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 2),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .result = ACCEPT,
- },
- {
- "calls: using uninit r0 from callee",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "!read_ok",
- .result = REJECT,
- },
- {
- "calls: callee is using r1",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, len)),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_ACT,
- .result = ACCEPT,
- .retval = TEST_DATA_LEN,
- },
- {
- "calls: callee using args1",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "allowed for root only",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- .retval = POINTER_VALUE,
- },
- {
- "calls: callee using wrong args2",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "R2 !read_ok",
- .result = REJECT,
- },
- {
- "calls: callee using two args",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_6,
- offsetof(struct __sk_buff, len)),
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_6,
- offsetof(struct __sk_buff, len)),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "allowed for root only",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- .retval = TEST_DATA_LEN + TEST_DATA_LEN - ETH_HLEN - ETH_HLEN,
- },
- {
- "calls: callee changing pkt pointers",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_8, BPF_REG_6),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_8, 8),
- BPF_JMP_REG(BPF_JGT, BPF_REG_8, BPF_REG_7, 2),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
- /* clear_all_pkt_pointers() has to walk all frames
- * to make sure that pkt pointers in the caller
- * are cleared when callee is calling a helper that
- * adjusts packet size
- */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- BPF_MOV32_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_xdp_adjust_head),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "R6 invalid mem access 'inv'",
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "calls: two calls with args",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 6),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
- BPF_EXIT_INSN(),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, len)),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = TEST_DATA_LEN + TEST_DATA_LEN,
- },
- {
- "calls: calls with stack arith",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -64),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -64),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -64),
- BPF_MOV64_IMM(BPF_REG_0, 42),
- BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 42,
- },
- {
- "calls: calls with misaligned stack access",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -63),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -61),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -63),
- BPF_MOV64_IMM(BPF_REG_0, 42),
- BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
- .errstr = "misaligned stack access",
- .result = REJECT,
- },
- {
- "calls: calls control flow, jump test",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 42),
- BPF_JMP_IMM(BPF_JA, 0, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 43),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_JMP_IMM(BPF_JA, 0, 0, -3),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 43,
- },
- {
- "calls: calls control flow, jump test 2",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 42),
- BPF_JMP_IMM(BPF_JA, 0, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 43),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -3),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .errstr = "jump out of range from insn 1 to 4",
- .result = REJECT,
- },
- {
- "calls: two calls with bad jump",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 6),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
- BPF_EXIT_INSN(),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, len)),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, -3),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "jump out of range from insn 11 to 9",
- .result = REJECT,
- },
- {
- "calls: recursive call. test1",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -1),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "back-edge",
- .result = REJECT,
- },
- {
- "calls: recursive call. test2",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -3),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "back-edge",
- .result = REJECT,
- },
- {
- "calls: unreachable code",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "unreachable insn 6",
- .result = REJECT,
- },
- {
- "calls: invalid call",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -4),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "invalid destination",
- .result = REJECT,
- },
- {
- "calls: invalid call 2",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 0x7fffffff),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "invalid destination",
- .result = REJECT,
- },
- {
- "calls: jumping across function bodies. test1",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -3),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "jump out of range",
- .result = REJECT,
- },
- {
- "calls: jumping across function bodies. test2",
- .insns = {
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "jump out of range",
- .result = REJECT,
- },
- {
- "calls: call without exit",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -2),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "not an exit",
- .result = REJECT,
- },
- {
- "calls: call into middle of ld_imm64",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_LD_IMM64(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "last insn",
- .result = REJECT,
- },
- {
- "calls: call into middle of other call",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "last insn",
- .result = REJECT,
- },
- {
- "calls: ld_abs with changing ctx data in callee",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_LD_ABS(BPF_B, 0),
- BPF_LD_ABS(BPF_H, 0),
- BPF_LD_ABS(BPF_W, 0),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_6),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 5),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_7),
- BPF_LD_ABS(BPF_B, 0),
- BPF_LD_ABS(BPF_H, 0),
- BPF_LD_ABS(BPF_W, 0),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_2, 1),
- BPF_MOV64_IMM(BPF_REG_3, 2),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_vlan_push),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .errstr = "BPF_LD_[ABS|IND] instructions cannot be mixed",
- .result = REJECT,
- },
- {
- "calls: two calls with bad fallthrough",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 6),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_0),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
- offsetof(struct __sk_buff, len)),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- .errstr = "not an exit",
- .result = REJECT,
- },
- {
- "calls: two calls with stack read",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 6),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
- BPF_EXIT_INSN(),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_XDP,
- .result = ACCEPT,
- },
- {
- "calls: two calls with stack write",
- .insns = {
- /* main prog */
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -16),
- BPF_EXIT_INSN(),
+ while (i < MAX_TEST_INSNS - MAX_JMP_SEQ * 4)
+ insn[i++] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 42);
+ insn[i] = BPF_EXIT_INSN();
+ self->prog_len = i + 1;
+ self->retval = 42;
+}
- /* subprog 1 */
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 7),
- BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_8),
- /* write into stack frame of main prog */
- BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
- BPF_EXIT_INSN(),
+/* test the sequence of 8k jumps in inner most function (function depth 8)*/
+static void bpf_fill_scale2(struct bpf_test *self)
+{
+ struct bpf_insn *insn = self->fill_insns;
+ int i = 0, k = 0;
- /* subprog 2 */
- /* read from stack frame of main prog */
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_XDP,
- .result = ACCEPT,
- },
- {
- "calls: stack overflow using two frames (pre-call access)",
- .insns = {
- /* prog 1 */
- BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
+#define FUNC_NEST 7
+ for (k = 0; k < FUNC_NEST; k++) {
+ insn[i++] = BPF_CALL_REL(1);
+ insn[i++] = BPF_EXIT_INSN();
+ }
+ insn[i++] = BPF_MOV64_REG(BPF_REG_6, BPF_REG_1);
+ /* test to check that the long sequence of jumps is acceptable */
+ k = 0;
+ while (k++ < MAX_JMP_SEQ) {
+ insn[i++] = BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+ BPF_FUNC_get_prandom_u32);
+ insn[i++] = BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, bpf_semi_rand_get(), 2);
+ insn[i++] = BPF_MOV64_REG(BPF_REG_1, BPF_REG_10);
+ insn[i++] = BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6,
+ -8 * (k % (64 - 4 * FUNC_NEST) + 1));
+ }
+ while (i < MAX_TEST_INSNS - MAX_JMP_SEQ * 4)
+ insn[i++] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 42);
+ insn[i] = BPF_EXIT_INSN();
+ self->prog_len = i + 1;
+ self->retval = 42;
+}
- /* prog 2 */
- BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_XDP,
- .errstr = "combined stack size",
- .result = REJECT,
- },
- {
- "calls: stack overflow using two frames (post-call access)",
- .insns = {
- /* prog 1 */
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 2),
- BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
- BPF_EXIT_INSN(),
+static void bpf_fill_scale(struct bpf_test *self)
+{
+ switch (self->retval) {
+ case 1:
+ return bpf_fill_scale1(self);
+ case 2:
+ return bpf_fill_scale2(self);
+ default:
+ self->prog_len = 0;
+ break;
+ }
+}
- /* prog 2 */
- BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_XDP,
- .errstr = "combined stack size",
- .result = REJECT,
- },
- {
- "calls: stack depth check using three frames. test1",
- .insns = {
- /* main */
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 4), /* call A */
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 5), /* call B */
- BPF_ST_MEM(BPF_B, BPF_REG_10, -32, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- /* A */
- BPF_ST_MEM(BPF_B, BPF_REG_10, -256, 0),
- BPF_EXIT_INSN(),
- /* B */
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, -3), /* call A */
- BPF_ST_MEM(BPF_B, BPF_REG_10, -64, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_XDP,
- /* stack_main=32, stack_A=256, stack_B=64
- * and max(main+A, main+A+B) < 512
- */
- .result = ACCEPT,
- },
- {
- "calls: stack depth check using three frames. test2",
- .insns = {
- /* main */
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 4), /* call A */
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 5), /* call B */
- BPF_ST_MEM(BPF_B, BPF_REG_10, -32, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- /* A */
- BPF_ST_MEM(BPF_B, BPF_REG_10, -64, 0),
- BPF_EXIT_INSN(),
- /* B */
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, -3), /* call A */
- BPF_ST_MEM(BPF_B, BPF_REG_10, -256, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_XDP,
- /* stack_main=32, stack_A=64, stack_B=256
- * and max(main+A, main+A+B) < 512
- */
- .result = ACCEPT,
- },
- {
- "calls: stack depth check using three frames. test3",
- .insns = {
- /* main */
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 6), /* call A */
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 8), /* call B */
- BPF_JMP_IMM(BPF_JGE, BPF_REG_6, 0, 1),
- BPF_ST_MEM(BPF_B, BPF_REG_10, -64, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- /* A */
- BPF_JMP_IMM(BPF_JLT, BPF_REG_1, 10, 1),
- BPF_EXIT_INSN(),
- BPF_ST_MEM(BPF_B, BPF_REG_10, -224, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, -3),
- /* B */
- BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 2, 1),
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, -6), /* call A */
- BPF_ST_MEM(BPF_B, BPF_REG_10, -256, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_XDP,
- /* stack_main=64, stack_A=224, stack_B=256
- * and max(main+A, main+A+B) > 512
- */
- .errstr = "combined stack",
- .result = REJECT,
- },
- {
- "calls: stack depth check using three frames. test4",
- /* void main(void) {
- * func1(0);
- * func1(1);
- * func2(1);
- * }
- * void func1(int alloc_or_recurse) {
- * if (alloc_or_recurse) {
- * frame_pointer[-300] = 1;
- * } else {
- * func2(alloc_or_recurse);
- * }
- * }
- * void func2(int alloc_or_recurse) {
- * if (alloc_or_recurse) {
- * frame_pointer[-300] = 1;
- * }
- * }
- */
- .insns = {
- /* main */
- BPF_MOV64_IMM(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 6), /* call A */
- BPF_MOV64_IMM(BPF_REG_1, 1),
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 4), /* call A */
- BPF_MOV64_IMM(BPF_REG_1, 1),
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 7), /* call B */
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- /* A */
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2),
- BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
- BPF_EXIT_INSN(),
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call B */
- BPF_EXIT_INSN(),
- /* B */
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
- BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_XDP,
- .result = REJECT,
- .errstr = "combined stack",
- },
- {
- "calls: stack depth check using three frames. test5",
- .insns = {
- /* main */
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call A */
- BPF_EXIT_INSN(),
- /* A */
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call B */
- BPF_EXIT_INSN(),
- /* B */
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call C */
- BPF_EXIT_INSN(),
- /* C */
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call D */
- BPF_EXIT_INSN(),
- /* D */
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call E */
- BPF_EXIT_INSN(),
- /* E */
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call F */
- BPF_EXIT_INSN(),
- /* F */
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call G */
- BPF_EXIT_INSN(),
- /* G */
- BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call H */
- BPF_EXIT_INSN(),
- /* H */
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_XDP,
- .errstr = "call stack",
- .result = REJECT,
- },
- {
- "calls: spill into caller stack frame",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
- BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_XDP,
- .errstr = "cannot spill",
- .result = REJECT,
- },
- {
- "calls: write into caller stack frame",
- .insns = {
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- BPF_EXIT_INSN(),
- BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 42),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_XDP,
- .result = ACCEPT,
- .retval = 42,
- },
- {
- "calls: write into callee stack frame",
- .insns = {
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
- BPF_EXIT_INSN(),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, -8),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_XDP,
- .errstr = "cannot return stack pointer",
- .result = REJECT,
- },
- {
- "calls: two calls with stack write and void return",
- .insns = {
- /* main prog */
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -16),
- BPF_EXIT_INSN(),
+/* BPF_SK_LOOKUP contains 13 instructions, if you need to fix up maps */
+#define BPF_SK_LOOKUP(func) \
+ /* struct bpf_sock_tuple tuple = {} */ \
+ BPF_MOV64_IMM(BPF_REG_2, 0), \
+ BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_2, -8), \
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -16), \
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -24), \
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -32), \
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -40), \
+ BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -48), \
+ /* sk = func(ctx, &tuple, sizeof tuple, 0, 0) */ \
+ BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), \
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48), \
+ BPF_MOV64_IMM(BPF_REG_3, sizeof(struct bpf_sock_tuple)), \
+ BPF_MOV64_IMM(BPF_REG_4, 0), \
+ BPF_MOV64_IMM(BPF_REG_5, 0), \
+ BPF_EMIT_CALL(BPF_FUNC_ ## func)
- /* subprog 1 */
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
+/* BPF_DIRECT_PKT_R2 contains 7 instructions, it initializes default return
+ * value into 0 and does necessary preparation for direct packet access
+ * through r2. The allowed access range is 8 bytes.
+ */
+#define BPF_DIRECT_PKT_R2 \
+ BPF_MOV64_IMM(BPF_REG_0, 0), \
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, \
+ offsetof(struct __sk_buff, data)), \
+ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, \
+ offsetof(struct __sk_buff, data_end)), \
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), \
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), \
+ BPF_JMP_REG(BPF_JLE, BPF_REG_4, BPF_REG_3, 1), \
+ BPF_EXIT_INSN()
- /* subprog 2 */
- /* write into stack frame of main prog */
- BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
- BPF_EXIT_INSN(), /* void return */
- },
- .prog_type = BPF_PROG_TYPE_XDP,
- .result = ACCEPT,
- },
- {
- "calls: ambiguous return value",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 5),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_EXIT_INSN(),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .errstr_unpriv = "allowed for root only",
- .result_unpriv = REJECT,
- .errstr = "R0 !read_ok",
- .result = REJECT,
- },
- {
- "calls: two calls that return map_value",
- .insns = {
- /* main prog */
- /* pass fp-16, fp-8 into a function */
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 8),
+/* BPF_RAND_UEXT_R7 contains 4 instructions, it initializes R7 into a random
+ * positive u32, and zero-extend it into 64-bit.
+ */
+#define BPF_RAND_UEXT_R7 \
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, \
+ BPF_FUNC_get_prandom_u32), \
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_0), \
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_7, 33), \
+ BPF_ALU64_IMM(BPF_RSH, BPF_REG_7, 33)
- /* fetch map_value_ptr from the stack of this function */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- /* write into map value */
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
- /* fetch secound map_value_ptr from the stack */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -16),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- /* write into map value */
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
+/* BPF_RAND_SEXT_R7 contains 5 instructions, it initializes R7 into a random
+ * negative u32, and sign-extend it into 64-bit.
+ */
+#define BPF_RAND_SEXT_R7 \
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, \
+ BPF_FUNC_get_prandom_u32), \
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_0), \
+ BPF_ALU64_IMM(BPF_OR, BPF_REG_7, 0x80000000), \
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_7, 32), \
+ BPF_ALU64_IMM(BPF_ARSH, BPF_REG_7, 32)
- /* subprog 1 */
- /* call 3rd function twice */
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
- /* first time with fp-8 */
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
- /* second time with fp-16 */
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
-
- /* subprog 2 */
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- /* lookup from map */
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- /* write map_value_ptr into stack frame of main prog */
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(), /* return 0 */
- },
- .prog_type = BPF_PROG_TYPE_XDP,
- .fixup_map1 = { 23 },
- .result = ACCEPT,
- },
- {
- "calls: two calls that return map_value with bool condition",
- .insns = {
- /* main prog */
- /* pass fp-16, fp-8 into a function */
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 1 */
- /* call 3rd function twice */
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
- /* first time with fp-8 */
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 9),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 1, 2),
- /* fetch map_value_ptr from the stack of this function */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- /* write into map value */
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
- /* second time with fp-16 */
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 1, 2),
- /* fetch secound map_value_ptr from the stack */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_7, 0),
- /* write into map value */
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 2 */
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- /* lookup from map */
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(), /* return 0 */
- /* write map_value_ptr into stack frame of main prog */
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(), /* return 1 */
- },
- .prog_type = BPF_PROG_TYPE_XDP,
- .fixup_map1 = { 23 },
- .result = ACCEPT,
- },
- {
- "calls: two calls that return map_value with incorrect bool check",
- .insns = {
- /* main prog */
- /* pass fp-16, fp-8 into a function */
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 1 */
- /* call 3rd function twice */
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
- /* first time with fp-8 */
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 9),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 1, 2),
- /* fetch map_value_ptr from the stack of this function */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
- /* write into map value */
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
- /* second time with fp-16 */
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
- /* fetch secound map_value_ptr from the stack */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_7, 0),
- /* write into map value */
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 2 */
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- /* lookup from map */
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(), /* return 0 */
- /* write map_value_ptr into stack frame of main prog */
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(), /* return 1 */
- },
- .prog_type = BPF_PROG_TYPE_XDP,
- .fixup_map1 = { 23 },
- .result = REJECT,
- .errstr = "invalid read from stack off -16+0 size 8",
- },
- {
- "calls: two calls that receive map_value via arg=ptr_stack_of_caller. test1",
- .insns = {
- /* main prog */
- /* pass fp-16, fp-8 into a function */
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 1 */
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
- /* 1st lookup from map */
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
- BPF_MOV64_IMM(BPF_REG_8, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, 2),
- /* write map_value_ptr into stack frame of main prog at fp-8 */
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_8, 1),
-
- /* 2nd lookup from map */
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), /* 20 */
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, /* 24 */
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
- BPF_MOV64_IMM(BPF_REG_9, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, 2),
- /* write map_value_ptr into stack frame of main prog at fp-16 */
- BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_9, 1),
-
- /* call 3rd func with fp-8, 0|1, fp-16, 0|1 */
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), /* 30 */
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_8),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_7),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_9),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1), /* 34 */
- BPF_EXIT_INSN(),
-
- /* subprog 2 */
- /* if arg2 == 1 do *arg1 = 0 */
- BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 1, 2),
- /* fetch map_value_ptr from the stack of this function */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
- /* write into map value */
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
-
- /* if arg4 == 1 do *arg3 = 0 */
- BPF_JMP_IMM(BPF_JNE, BPF_REG_4, 1, 2),
- /* fetch map_value_ptr from the stack of this function */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
- /* write into map value */
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 2, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .fixup_map1 = { 12, 22 },
- .result = REJECT,
- .errstr = "invalid access to map value, value_size=8 off=2 size=8",
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "calls: two calls that receive map_value via arg=ptr_stack_of_caller. test2",
- .insns = {
- /* main prog */
- /* pass fp-16, fp-8 into a function */
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 1 */
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
- /* 1st lookup from map */
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
- BPF_MOV64_IMM(BPF_REG_8, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, 2),
- /* write map_value_ptr into stack frame of main prog at fp-8 */
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_8, 1),
-
- /* 2nd lookup from map */
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), /* 20 */
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, /* 24 */
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
- BPF_MOV64_IMM(BPF_REG_9, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, 2),
- /* write map_value_ptr into stack frame of main prog at fp-16 */
- BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_9, 1),
-
- /* call 3rd func with fp-8, 0|1, fp-16, 0|1 */
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), /* 30 */
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_8),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_7),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_9),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1), /* 34 */
- BPF_EXIT_INSN(),
-
- /* subprog 2 */
- /* if arg2 == 1 do *arg1 = 0 */
- BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 1, 2),
- /* fetch map_value_ptr from the stack of this function */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
- /* write into map value */
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
-
- /* if arg4 == 1 do *arg3 = 0 */
- BPF_JMP_IMM(BPF_JNE, BPF_REG_4, 1, 2),
- /* fetch map_value_ptr from the stack of this function */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
- /* write into map value */
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .fixup_map1 = { 12, 22 },
- .result = ACCEPT,
- },
- {
- "calls: two jumps that receive map_value via arg=ptr_stack_of_jumper. test3",
- .insns = {
- /* main prog */
- /* pass fp-16, fp-8 into a function */
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 1 */
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
- /* 1st lookup from map */
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -24, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -24),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
- BPF_MOV64_IMM(BPF_REG_8, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, 2),
- /* write map_value_ptr into stack frame of main prog at fp-8 */
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_8, 1),
-
- /* 2nd lookup from map */
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -24),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
- BPF_MOV64_IMM(BPF_REG_9, 0), // 26
- BPF_JMP_IMM(BPF_JA, 0, 0, 2),
- /* write map_value_ptr into stack frame of main prog at fp-16 */
- BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_9, 1),
-
- /* call 3rd func with fp-8, 0|1, fp-16, 0|1 */
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), // 30
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_8),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_7),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_9),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), // 34
- BPF_JMP_IMM(BPF_JA, 0, 0, -30),
-
- /* subprog 2 */
- /* if arg2 == 1 do *arg1 = 0 */
- BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 1, 2),
- /* fetch map_value_ptr from the stack of this function */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
- /* write into map value */
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
-
- /* if arg4 == 1 do *arg3 = 0 */
- BPF_JMP_IMM(BPF_JNE, BPF_REG_4, 1, 2),
- /* fetch map_value_ptr from the stack of this function */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
- /* write into map value */
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 2, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, -8),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .fixup_map1 = { 12, 22 },
- .result = REJECT,
- .errstr = "invalid access to map value, value_size=8 off=2 size=8",
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "calls: two calls that receive map_value_ptr_or_null via arg. test1",
- .insns = {
- /* main prog */
- /* pass fp-16, fp-8 into a function */
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 1 */
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
- /* 1st lookup from map */
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- /* write map_value_ptr_or_null into stack frame of main prog at fp-8 */
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
- BPF_MOV64_IMM(BPF_REG_8, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_MOV64_IMM(BPF_REG_8, 1),
-
- /* 2nd lookup from map */
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- /* write map_value_ptr_or_null into stack frame of main prog at fp-16 */
- BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
- BPF_MOV64_IMM(BPF_REG_9, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_MOV64_IMM(BPF_REG_9, 1),
-
- /* call 3rd func with fp-8, 0|1, fp-16, 0|1 */
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_8),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_7),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_9),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
-
- /* subprog 2 */
- /* if arg2 == 1 do *arg1 = 0 */
- BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 1, 2),
- /* fetch map_value_ptr from the stack of this function */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
- /* write into map value */
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
-
- /* if arg4 == 1 do *arg3 = 0 */
- BPF_JMP_IMM(BPF_JNE, BPF_REG_4, 1, 2),
- /* fetch map_value_ptr from the stack of this function */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
- /* write into map value */
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .fixup_map1 = { 12, 22 },
- .result = ACCEPT,
- },
- {
- "calls: two calls that receive map_value_ptr_or_null via arg. test2",
- .insns = {
- /* main prog */
- /* pass fp-16, fp-8 into a function */
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 1 */
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
- /* 1st lookup from map */
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- /* write map_value_ptr_or_null into stack frame of main prog at fp-8 */
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
- BPF_MOV64_IMM(BPF_REG_8, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_MOV64_IMM(BPF_REG_8, 1),
-
- /* 2nd lookup from map */
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- /* write map_value_ptr_or_null into stack frame of main prog at fp-16 */
- BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
- BPF_MOV64_IMM(BPF_REG_9, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_MOV64_IMM(BPF_REG_9, 1),
-
- /* call 3rd func with fp-8, 0|1, fp-16, 0|1 */
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_8),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_7),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_9),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
-
- /* subprog 2 */
- /* if arg2 == 1 do *arg1 = 0 */
- BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 1, 2),
- /* fetch map_value_ptr from the stack of this function */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
- /* write into map value */
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
-
- /* if arg4 == 0 do *arg3 = 0 */
- BPF_JMP_IMM(BPF_JNE, BPF_REG_4, 0, 2),
- /* fetch map_value_ptr from the stack of this function */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
- /* write into map value */
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .fixup_map1 = { 12, 22 },
- .result = REJECT,
- .errstr = "R0 invalid mem access 'inv'",
- },
- {
- "calls: pkt_ptr spill into caller stack",
- .insns = {
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
- BPF_EXIT_INSN(),
-
- /* subprog 1 */
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- /* spill unchecked pkt_ptr into stack of caller */
- BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
- /* now the pkt range is verified, read pkt_ptr from stack */
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0),
- /* write 4 bytes into packet */
- BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .retval = POINTER_VALUE,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "calls: pkt_ptr spill into caller stack 2",
- .insns = {
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
- /* Marking is still kept, but not in all cases safe. */
- BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
- BPF_ST_MEM(BPF_W, BPF_REG_4, 0, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 1 */
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- /* spill unchecked pkt_ptr into stack of caller */
- BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
- /* now the pkt range is verified, read pkt_ptr from stack */
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0),
- /* write 4 bytes into packet */
- BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .errstr = "invalid access to packet",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "calls: pkt_ptr spill into caller stack 3",
- .insns = {
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
- /* Marking is still kept and safe here. */
- BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
- BPF_ST_MEM(BPF_W, BPF_REG_4, 0, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 1 */
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- /* spill unchecked pkt_ptr into stack of caller */
- BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
- BPF_MOV64_IMM(BPF_REG_5, 1),
- /* now the pkt range is verified, read pkt_ptr from stack */
- BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0),
- /* write 4 bytes into packet */
- BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 1,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "calls: pkt_ptr spill into caller stack 4",
- .insns = {
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
- /* Check marking propagated. */
- BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
- BPF_ST_MEM(BPF_W, BPF_REG_4, 0, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 1 */
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- /* spill unchecked pkt_ptr into stack of caller */
- BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
- BPF_MOV64_IMM(BPF_REG_5, 1),
- /* don't read back pkt_ptr from stack here */
- /* write 4 bytes into packet */
- BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 1,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "calls: pkt_ptr spill into caller stack 5",
- .insns = {
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
- BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_4, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 1 */
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
- /* spill checked pkt_ptr into stack of caller */
- BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_5, 1),
- /* don't read back pkt_ptr from stack here */
- /* write 4 bytes into packet */
- BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .errstr = "same insn cannot be used with different",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "calls: pkt_ptr spill into caller stack 6",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
- BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_4, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 1 */
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
- /* spill checked pkt_ptr into stack of caller */
- BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_5, 1),
- /* don't read back pkt_ptr from stack here */
- /* write 4 bytes into packet */
- BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .errstr = "R4 invalid mem access",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "calls: pkt_ptr spill into caller stack 7",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
- BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_4, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 1 */
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
- /* spill checked pkt_ptr into stack of caller */
- BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_5, 1),
- /* don't read back pkt_ptr from stack here */
- /* write 4 bytes into packet */
- BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .errstr = "R4 invalid mem access",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "calls: pkt_ptr spill into caller stack 8",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_0, BPF_REG_3, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
- BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_4, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 1 */
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
- /* spill checked pkt_ptr into stack of caller */
- BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_5, 1),
- /* don't read back pkt_ptr from stack here */
- /* write 4 bytes into packet */
- BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "calls: pkt_ptr spill into caller stack 9",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_JMP_REG(BPF_JLE, BPF_REG_0, BPF_REG_3, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
- BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
- BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_4, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 1 */
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct __sk_buff, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct __sk_buff, data_end)),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
- BPF_MOV64_IMM(BPF_REG_5, 0),
- /* spill unchecked pkt_ptr into stack of caller */
- BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
- BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
- BPF_MOV64_IMM(BPF_REG_5, 1),
- /* don't read back pkt_ptr from stack here */
- /* write 4 bytes into packet */
- BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
- BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .errstr = "invalid access to packet",
- .result = REJECT,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "calls: caller stack init to zero or map_value_or_null",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
- /* fetch map_value_or_null or const_zero from stack */
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
- /* store into map_value */
- BPF_ST_MEM(BPF_W, BPF_REG_0, 0, 0),
- BPF_EXIT_INSN(),
-
- /* subprog 1 */
- /* if (ctx == 0) return; */
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 8),
- /* else bpf_map_lookup() and *(fp - 8) = r0 */
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- /* write map_value_ptr_or_null into stack frame of main prog at fp-8 */
- BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 13 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "calls: stack init to zero and pruning",
- .insns = {
- /* first make allocated_stack 16 byte */
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, 0),
- /* now fork the execution such that the false branch
- * of JGT insn will be verified second and it skisp zero
- * init of fp-8 stack slot. If stack liveness marking
- * is missing live_read marks from call map_lookup
- * processing then pruning will incorrectly assume
- * that fp-8 stack slot was unused in the fall-through
- * branch and will accept the program incorrectly
- */
- BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 2, 2),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 6 },
- .errstr = "invalid indirect read from stack off -8+0 size 8",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_XDP,
- },
- {
- "calls: two calls returning different map pointers for lookup (hash, array)",
- .insns = {
- /* main prog */
- BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2),
- BPF_CALL_REL(11),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_CALL_REL(12),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
- offsetof(struct test_val, foo)),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- /* subprog 1 */
- BPF_LD_MAP_FD(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- /* subprog 2 */
- BPF_LD_MAP_FD(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .fixup_map2 = { 13 },
- .fixup_map4 = { 16 },
- .result = ACCEPT,
- .retval = 1,
- },
- {
- "calls: two calls returning different map pointers for lookup (hash, map in map)",
- .insns = {
- /* main prog */
- BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2),
- BPF_CALL_REL(11),
- BPF_JMP_IMM(BPF_JA, 0, 0, 1),
- BPF_CALL_REL(12),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
- BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
- offsetof(struct test_val, foo)),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- /* subprog 1 */
- BPF_LD_MAP_FD(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- /* subprog 2 */
- BPF_LD_MAP_FD(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .fixup_map_in_map = { 16 },
- .fixup_map4 = { 13 },
- .result = REJECT,
- .errstr = "R0 invalid mem access 'map_ptr'",
- },
- {
- "cond: two branches returning different map pointers for lookup (tail, tail)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_6, 0, 3),
- BPF_LD_MAP_FD(BPF_REG_2, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, 2),
- BPF_LD_MAP_FD(BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_3, 7),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_tail_call),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .fixup_prog1 = { 5 },
- .fixup_prog2 = { 2 },
- .result_unpriv = REJECT,
- .errstr_unpriv = "tail_call abusing map_ptr",
- .result = ACCEPT,
- .retval = 42,
- },
- {
- "cond: two branches returning same map pointers for lookup (tail, tail)",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
- offsetof(struct __sk_buff, mark)),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_6, 0, 3),
- BPF_LD_MAP_FD(BPF_REG_2, 0),
- BPF_JMP_IMM(BPF_JA, 0, 0, 2),
- BPF_LD_MAP_FD(BPF_REG_2, 0),
- BPF_MOV64_IMM(BPF_REG_3, 7),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_tail_call),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .fixup_prog2 = { 2, 5 },
- .result_unpriv = ACCEPT,
- .result = ACCEPT,
- .retval = 42,
- },
- {
- "search pruning: all branches should be verified (nop operation)",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11),
- BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_3, 0xbeef, 2),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_JMP_A(1),
- BPF_MOV64_IMM(BPF_REG_4, 1),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_4, -16),
- BPF_EMIT_CALL(BPF_FUNC_ktime_get_ns),
- BPF_LDX_MEM(BPF_DW, BPF_REG_5, BPF_REG_10, -16),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_5, 0, 2),
- BPF_MOV64_IMM(BPF_REG_6, 0),
- BPF_ST_MEM(BPF_DW, BPF_REG_6, 0, 0xdead),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "R6 invalid mem access 'inv'",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "search pruning: all branches should be verified (invalid stack access)",
- .insns = {
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8),
- BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_3, 0xbeef, 2),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_4, -16),
- BPF_JMP_A(1),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_4, -24),
- BPF_EMIT_CALL(BPF_FUNC_ktime_get_ns),
- BPF_LDX_MEM(BPF_DW, BPF_REG_5, BPF_REG_10, -16),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .errstr = "invalid read from stack off -16+0 size 8",
- .result = REJECT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "jit: lsh, rsh, arsh by 1",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_MOV64_IMM(BPF_REG_1, 0xff),
- BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 1),
- BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x3fc, 1),
- BPF_EXIT_INSN(),
- BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 1),
- BPF_ALU32_IMM(BPF_RSH, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0xff, 1),
- BPF_EXIT_INSN(),
- BPF_ALU64_IMM(BPF_ARSH, BPF_REG_1, 1),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x7f, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 2),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .retval = 2,
- },
- {
- "jit: mov32 for ldimm64, 1",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 2),
- BPF_LD_IMM64(BPF_REG_1, 0xfeffffffffffffffULL),
- BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 32),
- BPF_LD_IMM64(BPF_REG_2, 0xfeffffffULL),
- BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 1),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .retval = 2,
- },
- {
- "jit: mov32 for ldimm64, 2",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_LD_IMM64(BPF_REG_1, 0x1ffffffffULL),
- BPF_LD_IMM64(BPF_REG_2, 0xffffffffULL),
- BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 1),
- BPF_MOV64_IMM(BPF_REG_0, 2),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .retval = 2,
- },
- {
- "jit: various mul tests",
- .insns = {
- BPF_LD_IMM64(BPF_REG_2, 0xeeff0d413122ULL),
- BPF_LD_IMM64(BPF_REG_0, 0xfefefeULL),
- BPF_LD_IMM64(BPF_REG_1, 0xefefefULL),
- BPF_ALU64_REG(BPF_MUL, BPF_REG_0, BPF_REG_1),
- BPF_JMP_REG(BPF_JEQ, BPF_REG_0, BPF_REG_2, 2),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_LD_IMM64(BPF_REG_3, 0xfefefeULL),
- BPF_ALU64_REG(BPF_MUL, BPF_REG_3, BPF_REG_1),
- BPF_JMP_REG(BPF_JEQ, BPF_REG_3, BPF_REG_2, 2),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV32_REG(BPF_REG_2, BPF_REG_2),
- BPF_LD_IMM64(BPF_REG_0, 0xfefefeULL),
- BPF_ALU32_REG(BPF_MUL, BPF_REG_0, BPF_REG_1),
- BPF_JMP_REG(BPF_JEQ, BPF_REG_0, BPF_REG_2, 2),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_LD_IMM64(BPF_REG_3, 0xfefefeULL),
- BPF_ALU32_REG(BPF_MUL, BPF_REG_3, BPF_REG_1),
- BPF_JMP_REG(BPF_JEQ, BPF_REG_3, BPF_REG_2, 2),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_LD_IMM64(BPF_REG_0, 0x952a7bbcULL),
- BPF_LD_IMM64(BPF_REG_1, 0xfefefeULL),
- BPF_LD_IMM64(BPF_REG_2, 0xeeff0d413122ULL),
- BPF_ALU32_REG(BPF_MUL, BPF_REG_2, BPF_REG_1),
- BPF_JMP_REG(BPF_JEQ, BPF_REG_2, BPF_REG_0, 2),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 2),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .retval = 2,
- },
- {
- "xadd/w check unaligned stack",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
- BPF_STX_XADD(BPF_W, BPF_REG_10, BPF_REG_0, -7),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "misaligned stack access off",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "xadd/w check unaligned map",
- .insns = {
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_1, 1),
- BPF_STX_XADD(BPF_W, BPF_REG_0, BPF_REG_1, 3),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 3),
- BPF_EXIT_INSN(),
- },
- .fixup_map1 = { 3 },
- .result = REJECT,
- .errstr = "misaligned value access off",
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- },
- {
- "xadd/w check unaligned pkt",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct xdp_md, data)),
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
- offsetof(struct xdp_md, data_end)),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
- BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 2),
- BPF_MOV64_IMM(BPF_REG_0, 99),
- BPF_JMP_IMM(BPF_JA, 0, 0, 6),
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
- BPF_ST_MEM(BPF_W, BPF_REG_2, 3, 0),
- BPF_STX_XADD(BPF_W, BPF_REG_2, BPF_REG_0, 1),
- BPF_STX_XADD(BPF_W, BPF_REG_2, BPF_REG_0, 2),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_2, 1),
- BPF_EXIT_INSN(),
- },
- .result = REJECT,
- .errstr = "BPF_XADD stores into R2 packet",
- .prog_type = BPF_PROG_TYPE_XDP,
- .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
- },
- {
- "xadd/w check whether src/dst got mangled, 1",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
- BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
- BPF_STX_XADD(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
- BPF_STX_XADD(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
- BPF_JMP_REG(BPF_JNE, BPF_REG_6, BPF_REG_0, 3),
- BPF_JMP_REG(BPF_JNE, BPF_REG_7, BPF_REG_10, 2),
- BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 42),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .retval = 3,
- },
- {
- "xadd/w check whether src/dst got mangled, 2",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_0, 1),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
- BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -8),
- BPF_STX_XADD(BPF_W, BPF_REG_10, BPF_REG_0, -8),
- BPF_STX_XADD(BPF_W, BPF_REG_10, BPF_REG_0, -8),
- BPF_JMP_REG(BPF_JNE, BPF_REG_6, BPF_REG_0, 3),
- BPF_JMP_REG(BPF_JNE, BPF_REG_7, BPF_REG_10, 2),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -8),
- BPF_EXIT_INSN(),
- BPF_MOV64_IMM(BPF_REG_0, 42),
- BPF_EXIT_INSN(),
- },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .retval = 3,
- },
- {
- "bpf_get_stack return R0 within range",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
- BPF_LD_MAP_FD(BPF_REG_1, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_map_lookup_elem),
- BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 28),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
- BPF_MOV64_IMM(BPF_REG_9, sizeof(struct test_val)/2),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
- BPF_MOV64_IMM(BPF_REG_3, sizeof(struct test_val)/2),
- BPF_MOV64_IMM(BPF_REG_4, 256),
- BPF_EMIT_CALL(BPF_FUNC_get_stack),
- BPF_MOV64_IMM(BPF_REG_1, 0),
- BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
- BPF_ALU64_IMM(BPF_LSH, BPF_REG_8, 32),
- BPF_ALU64_IMM(BPF_ARSH, BPF_REG_8, 32),
- BPF_JMP_REG(BPF_JSLT, BPF_REG_8, BPF_REG_1, 16),
- BPF_ALU64_REG(BPF_SUB, BPF_REG_9, BPF_REG_8),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_8),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_9),
- BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 32),
- BPF_ALU64_IMM(BPF_ARSH, BPF_REG_1, 32),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_1),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
- BPF_MOV64_IMM(BPF_REG_5, sizeof(struct test_val)/2),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_5),
- BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 4),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_MOV64_REG(BPF_REG_3, BPF_REG_9),
- BPF_MOV64_IMM(BPF_REG_4, 0),
- BPF_EMIT_CALL(BPF_FUNC_get_stack),
- BPF_EXIT_INSN(),
- },
- .fixup_map2 = { 4 },
- .result = ACCEPT,
- .prog_type = BPF_PROG_TYPE_TRACEPOINT,
- },
- {
- "ld_abs: invalid op 1",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_LD_ABS(BPF_DW, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = REJECT,
- .errstr = "unknown opcode",
- },
- {
- "ld_abs: invalid op 2",
- .insns = {
- BPF_MOV32_IMM(BPF_REG_0, 256),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_LD_IND(BPF_DW, BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = REJECT,
- .errstr = "unknown opcode",
- },
- {
- "ld_abs: nmap reduced",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_LD_ABS(BPF_H, 12),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0x806, 28),
- BPF_LD_ABS(BPF_H, 12),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0x806, 26),
- BPF_MOV32_IMM(BPF_REG_0, 18),
- BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -64),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_10, -64),
- BPF_LD_IND(BPF_W, BPF_REG_7, 14),
- BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -60),
- BPF_MOV32_IMM(BPF_REG_0, 280971478),
- BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -56),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_10, -56),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -60),
- BPF_ALU32_REG(BPF_SUB, BPF_REG_0, BPF_REG_7),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 15),
- BPF_LD_ABS(BPF_H, 12),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0x806, 13),
- BPF_MOV32_IMM(BPF_REG_0, 22),
- BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -56),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_10, -56),
- BPF_LD_IND(BPF_H, BPF_REG_7, 14),
- BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -52),
- BPF_MOV32_IMM(BPF_REG_0, 17366),
- BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -48),
- BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_10, -48),
- BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -52),
- BPF_ALU32_REG(BPF_SUB, BPF_REG_0, BPF_REG_7),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
- BPF_MOV32_IMM(BPF_REG_0, 256),
- BPF_EXIT_INSN(),
- BPF_MOV32_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .data = {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0x06, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0x10, 0xbf, 0x48, 0xd6, 0x43, 0xd6,
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 256,
- },
- {
- "ld_abs: div + abs, test 1",
- .insns = {
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
- BPF_LD_ABS(BPF_B, 3),
- BPF_ALU64_IMM(BPF_MOV, BPF_REG_2, 2),
- BPF_ALU32_REG(BPF_DIV, BPF_REG_0, BPF_REG_2),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_8, BPF_REG_0),
- BPF_LD_ABS(BPF_B, 4),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_0),
- BPF_LD_IND(BPF_B, BPF_REG_8, -70),
- BPF_EXIT_INSN(),
- },
- .data = {
- 10, 20, 30, 40, 50,
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 10,
- },
- {
- "ld_abs: div + abs, test 2",
- .insns = {
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
- BPF_LD_ABS(BPF_B, 3),
- BPF_ALU64_IMM(BPF_MOV, BPF_REG_2, 2),
- BPF_ALU32_REG(BPF_DIV, BPF_REG_0, BPF_REG_2),
- BPF_ALU64_REG(BPF_MOV, BPF_REG_8, BPF_REG_0),
- BPF_LD_ABS(BPF_B, 128),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_0),
- BPF_LD_IND(BPF_B, BPF_REG_8, -70),
- BPF_EXIT_INSN(),
- },
- .data = {
- 10, 20, 30, 40, 50,
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 0,
- },
- {
- "ld_abs: div + abs, test 3",
- .insns = {
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
- BPF_ALU64_IMM(BPF_MOV, BPF_REG_7, 0),
- BPF_LD_ABS(BPF_B, 3),
- BPF_ALU32_REG(BPF_DIV, BPF_REG_0, BPF_REG_7),
- BPF_EXIT_INSN(),
- },
- .data = {
- 10, 20, 30, 40, 50,
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 0,
- },
- {
- "ld_abs: div + abs, test 4",
- .insns = {
- BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
- BPF_ALU64_IMM(BPF_MOV, BPF_REG_7, 0),
- BPF_LD_ABS(BPF_B, 256),
- BPF_ALU32_REG(BPF_DIV, BPF_REG_0, BPF_REG_7),
- BPF_EXIT_INSN(),
- },
- .data = {
- 10, 20, 30, 40, 50,
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 0,
- },
- {
- "ld_abs: vlan + abs, test 1",
- .insns = { },
- .data = {
- 0x34,
- },
- .fill_helper = bpf_fill_ld_abs_vlan_push_pop,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 0xbef,
- },
- {
- "ld_abs: vlan + abs, test 2",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_LD_ABS(BPF_B, 0),
- BPF_LD_ABS(BPF_H, 0),
- BPF_LD_ABS(BPF_W, 0),
- BPF_MOV64_REG(BPF_REG_7, BPF_REG_6),
- BPF_MOV64_IMM(BPF_REG_6, 0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
- BPF_MOV64_IMM(BPF_REG_2, 1),
- BPF_MOV64_IMM(BPF_REG_3, 2),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_skb_vlan_push),
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_7),
- BPF_LD_ABS(BPF_B, 0),
- BPF_LD_ABS(BPF_H, 0),
- BPF_LD_ABS(BPF_W, 0),
- BPF_MOV64_IMM(BPF_REG_0, 42),
- BPF_EXIT_INSN(),
- },
- .data = {
- 0x34,
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 42,
- },
- {
- "ld_abs: jump around ld_abs",
- .insns = { },
- .data = {
- 10, 11,
- },
- .fill_helper = bpf_fill_jump_around_ld_abs,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 10,
- },
- {
- "ld_dw: xor semi-random 64 bit imms, test 1",
- .insns = { },
- .data = { },
- .fill_helper = bpf_fill_rand_ld_dw,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 4090,
- },
- {
- "ld_dw: xor semi-random 64 bit imms, test 2",
- .insns = { },
- .data = { },
- .fill_helper = bpf_fill_rand_ld_dw,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 2047,
- },
- {
- "ld_dw: xor semi-random 64 bit imms, test 3",
- .insns = { },
- .data = { },
- .fill_helper = bpf_fill_rand_ld_dw,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 511,
- },
- {
- "ld_dw: xor semi-random 64 bit imms, test 4",
- .insns = { },
- .data = { },
- .fill_helper = bpf_fill_rand_ld_dw,
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- .retval = 5,
- },
- {
- "pass unmodified ctx pointer to helper",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_csum_update),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- },
- {
- "pass modified ctx pointer to helper, 1",
- .insns = {
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -612),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_csum_update),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = REJECT,
- .errstr = "dereference of modified ctx ptr",
- },
- {
- "pass modified ctx pointer to helper, 2",
- .insns = {
- BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -612),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_get_socket_cookie),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .result_unpriv = REJECT,
- .result = REJECT,
- .errstr_unpriv = "dereference of modified ctx ptr",
- .errstr = "dereference of modified ctx ptr",
- },
- {
- "pass modified ctx pointer to helper, 3",
- .insns = {
- BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 0),
- BPF_ALU64_IMM(BPF_AND, BPF_REG_3, 4),
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
- BPF_FUNC_csum_update),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = REJECT,
- .errstr = "variable ctx access var_off=(0x0; 0x4)",
- },
- {
- "mov64 src == dst",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_2, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_2),
- // Check bounds are OK
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- },
- {
- "mov64 src != dst",
- .insns = {
- BPF_MOV64_IMM(BPF_REG_3, 0),
- BPF_MOV64_REG(BPF_REG_2, BPF_REG_3),
- // Check bounds are OK
- BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SCHED_CLS,
- .result = ACCEPT,
- },
- {
- "calls: ctx read at start of subprog",
- .insns = {
- BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 5),
- BPF_JMP_REG(BPF_JSGT, BPF_REG_0, BPF_REG_0, 0),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
- BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
- BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
- BPF_EXIT_INSN(),
- BPF_LDX_MEM(BPF_B, BPF_REG_9, BPF_REG_1, 0),
- BPF_MOV64_IMM(BPF_REG_0, 0),
- BPF_EXIT_INSN(),
- },
- .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
- .errstr_unpriv = "function calls to other bpf functions are allowed for root only",
- .result_unpriv = REJECT,
- .result = ACCEPT,
- },
+static struct bpf_test tests[] = {
+#define FILL_ARRAY
+#include <verifier/tests.h>
+#undef FILL_ARRAY
};
static int probe_filter_length(const struct bpf_insn *fp)
@@ -12788,23 +367,54 @@
return len + 1;
}
-static int create_map(uint32_t type, uint32_t size_key,
- uint32_t size_value, uint32_t max_elem)
+static bool skip_unsupported_map(enum bpf_map_type map_type)
+{
+ if (!bpf_probe_map_type(map_type, 0)) {
+ printf("SKIP (unsupported map type %d)\n", map_type);
+ skips++;
+ return true;
+ }
+ return false;
+}
+
+static int __create_map(uint32_t type, uint32_t size_key,
+ uint32_t size_value, uint32_t max_elem,
+ uint32_t extra_flags)
{
int fd;
fd = bpf_create_map(type, size_key, size_value, max_elem,
- type == BPF_MAP_TYPE_HASH ? BPF_F_NO_PREALLOC : 0);
- if (fd < 0)
+ (type == BPF_MAP_TYPE_HASH ?
+ BPF_F_NO_PREALLOC : 0) | extra_flags);
+ if (fd < 0) {
+ if (skip_unsupported_map(type))
+ return -1;
printf("Failed to create hash map '%s'!\n", strerror(errno));
+ }
return fd;
}
-static int create_prog_dummy1(enum bpf_map_type prog_type)
+static int create_map(uint32_t type, uint32_t size_key,
+ uint32_t size_value, uint32_t max_elem)
+{
+ return __create_map(type, size_key, size_value, max_elem, 0);
+}
+
+static void update_map(int fd, int index)
+{
+ struct test_val value = {
+ .index = (6 + 1) * sizeof(int),
+ .foo[6] = 0xabcdef12,
+ };
+
+ assert(!bpf_map_update_elem(fd, &index, &value, 0));
+}
+
+static int create_prog_dummy_simple(enum bpf_prog_type prog_type, int ret)
{
struct bpf_insn prog[] = {
- BPF_MOV64_IMM(BPF_REG_0, 42),
+ BPF_MOV64_IMM(BPF_REG_0, ret),
BPF_EXIT_INSN(),
};
@@ -12812,14 +422,15 @@
ARRAY_SIZE(prog), "GPL", 0, NULL, 0);
}
-static int create_prog_dummy2(enum bpf_map_type prog_type, int mfd, int idx)
+static int create_prog_dummy_loop(enum bpf_prog_type prog_type, int mfd,
+ int idx, int ret)
{
struct bpf_insn prog[] = {
BPF_MOV64_IMM(BPF_REG_3, idx),
BPF_LD_MAP_FD(BPF_REG_2, mfd),
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
BPF_FUNC_tail_call),
- BPF_MOV64_IMM(BPF_REG_0, 41),
+ BPF_MOV64_IMM(BPF_REG_0, ret),
BPF_EXIT_INSN(),
};
@@ -12827,36 +438,38 @@
ARRAY_SIZE(prog), "GPL", 0, NULL, 0);
}
-static int create_prog_array(enum bpf_map_type prog_type, uint32_t max_elem,
- int p1key)
+static int create_prog_array(enum bpf_prog_type prog_type, uint32_t max_elem,
+ int p1key, int p2key, int p3key)
{
- int p2key = 1;
- int mfd, p1fd, p2fd;
+ int mfd, p1fd, p2fd, p3fd;
mfd = bpf_create_map(BPF_MAP_TYPE_PROG_ARRAY, sizeof(int),
sizeof(int), max_elem, 0);
if (mfd < 0) {
+ if (skip_unsupported_map(BPF_MAP_TYPE_PROG_ARRAY))
+ return -1;
printf("Failed to create prog array '%s'!\n", strerror(errno));
return -1;
}
- p1fd = create_prog_dummy1(prog_type);
- p2fd = create_prog_dummy2(prog_type, mfd, p2key);
- if (p1fd < 0 || p2fd < 0)
- goto out;
+ p1fd = create_prog_dummy_simple(prog_type, 42);
+ p2fd = create_prog_dummy_loop(prog_type, mfd, p2key, 41);
+ p3fd = create_prog_dummy_simple(prog_type, 24);
+ if (p1fd < 0 || p2fd < 0 || p3fd < 0)
+ goto err;
if (bpf_map_update_elem(mfd, &p1key, &p1fd, BPF_ANY) < 0)
- goto out;
+ goto err;
if (bpf_map_update_elem(mfd, &p2key, &p2fd, BPF_ANY) < 0)
- goto out;
+ goto err;
+ if (bpf_map_update_elem(mfd, &p3key, &p3fd, BPF_ANY) < 0) {
+err:
+ close(mfd);
+ mfd = -1;
+ }
+ close(p3fd);
close(p2fd);
close(p1fd);
-
return mfd;
-out:
- close(p2fd);
- close(p1fd);
- close(mfd);
- return -1;
}
static int create_map_in_map(void)
@@ -12866,93 +479,218 @@
inner_map_fd = bpf_create_map(BPF_MAP_TYPE_ARRAY, sizeof(int),
sizeof(int), 1, 0);
if (inner_map_fd < 0) {
+ if (skip_unsupported_map(BPF_MAP_TYPE_ARRAY))
+ return -1;
printf("Failed to create array '%s'!\n", strerror(errno));
return inner_map_fd;
}
outer_map_fd = bpf_create_map_in_map(BPF_MAP_TYPE_ARRAY_OF_MAPS, NULL,
sizeof(int), inner_map_fd, 1, 0);
- if (outer_map_fd < 0)
+ if (outer_map_fd < 0) {
+ if (skip_unsupported_map(BPF_MAP_TYPE_ARRAY_OF_MAPS))
+ return -1;
printf("Failed to create array of maps '%s'!\n",
strerror(errno));
+ }
close(inner_map_fd);
return outer_map_fd;
}
-static int create_cgroup_storage(void)
+static int create_cgroup_storage(bool percpu)
{
+ enum bpf_map_type type = percpu ? BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE :
+ BPF_MAP_TYPE_CGROUP_STORAGE;
int fd;
- fd = bpf_create_map(BPF_MAP_TYPE_CGROUP_STORAGE,
- sizeof(struct bpf_cgroup_storage_key),
+ fd = bpf_create_map(type, sizeof(struct bpf_cgroup_storage_key),
TEST_DATA_LEN, 0, 0);
- if (fd < 0)
- printf("Failed to create array '%s'!\n", strerror(errno));
+ if (fd < 0) {
+ if (skip_unsupported_map(type))
+ return -1;
+ printf("Failed to create cgroup storage '%s'!\n",
+ strerror(errno));
+ }
+ return fd;
+}
+
+/* struct bpf_spin_lock {
+ * int val;
+ * };
+ * struct val {
+ * int cnt;
+ * struct bpf_spin_lock l;
+ * };
+ */
+static const char btf_str_sec[] = "\0bpf_spin_lock\0val\0cnt\0l";
+static __u32 btf_raw_types[] = {
+ /* int */
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ /* struct bpf_spin_lock */ /* [2] */
+ BTF_TYPE_ENC(1, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4),
+ BTF_MEMBER_ENC(15, 1, 0), /* int val; */
+ /* struct val */ /* [3] */
+ BTF_TYPE_ENC(15, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8),
+ BTF_MEMBER_ENC(19, 1, 0), /* int cnt; */
+ BTF_MEMBER_ENC(23, 2, 32),/* struct bpf_spin_lock l; */
+};
+
+static int load_btf(void)
+{
+ struct btf_header hdr = {
+ .magic = BTF_MAGIC,
+ .version = BTF_VERSION,
+ .hdr_len = sizeof(struct btf_header),
+ .type_len = sizeof(btf_raw_types),
+ .str_off = sizeof(btf_raw_types),
+ .str_len = sizeof(btf_str_sec),
+ };
+ void *ptr, *raw_btf;
+ int btf_fd;
+
+ ptr = raw_btf = malloc(sizeof(hdr) + sizeof(btf_raw_types) +
+ sizeof(btf_str_sec));
+
+ memcpy(ptr, &hdr, sizeof(hdr));
+ ptr += sizeof(hdr);
+ memcpy(ptr, btf_raw_types, hdr.type_len);
+ ptr += hdr.type_len;
+ memcpy(ptr, btf_str_sec, hdr.str_len);
+ ptr += hdr.str_len;
+
+ btf_fd = bpf_load_btf(raw_btf, ptr - raw_btf, 0, 0, 0);
+ free(raw_btf);
+ if (btf_fd < 0)
+ return -1;
+ return btf_fd;
+}
+
+static int create_map_spin_lock(void)
+{
+ struct bpf_create_map_attr attr = {
+ .name = "test_map",
+ .map_type = BPF_MAP_TYPE_ARRAY,
+ .key_size = 4,
+ .value_size = 8,
+ .max_entries = 1,
+ .btf_key_type_id = 1,
+ .btf_value_type_id = 3,
+ };
+ int fd, btf_fd;
+
+ btf_fd = load_btf();
+ if (btf_fd < 0)
+ return -1;
+ attr.btf_fd = btf_fd;
+ fd = bpf_create_map_xattr(&attr);
+ if (fd < 0)
+ printf("Failed to create map with spin_lock\n");
+ return fd;
+}
+
+static int create_sk_storage_map(void)
+{
+ struct bpf_create_map_attr attr = {
+ .name = "test_map",
+ .map_type = BPF_MAP_TYPE_SK_STORAGE,
+ .key_size = 4,
+ .value_size = 8,
+ .max_entries = 0,
+ .map_flags = BPF_F_NO_PREALLOC,
+ .btf_key_type_id = 1,
+ .btf_value_type_id = 3,
+ };
+ int fd, btf_fd;
+
+ btf_fd = load_btf();
+ if (btf_fd < 0)
+ return -1;
+ attr.btf_fd = btf_fd;
+ fd = bpf_create_map_xattr(&attr);
+ close(attr.btf_fd);
+ if (fd < 0)
+ printf("Failed to create sk_storage_map\n");
return fd;
}
static char bpf_vlog[UINT_MAX >> 8];
-static void do_test_fixup(struct bpf_test *test, enum bpf_map_type prog_type,
+static void do_test_fixup(struct bpf_test *test, enum bpf_prog_type prog_type,
struct bpf_insn *prog, int *map_fds)
{
- int *fixup_map1 = test->fixup_map1;
- int *fixup_map2 = test->fixup_map2;
- int *fixup_map3 = test->fixup_map3;
- int *fixup_map4 = test->fixup_map4;
+ int *fixup_map_hash_8b = test->fixup_map_hash_8b;
+ int *fixup_map_hash_48b = test->fixup_map_hash_48b;
+ int *fixup_map_hash_16b = test->fixup_map_hash_16b;
+ int *fixup_map_array_48b = test->fixup_map_array_48b;
+ int *fixup_map_sockmap = test->fixup_map_sockmap;
+ int *fixup_map_sockhash = test->fixup_map_sockhash;
+ int *fixup_map_xskmap = test->fixup_map_xskmap;
+ int *fixup_map_stacktrace = test->fixup_map_stacktrace;
int *fixup_prog1 = test->fixup_prog1;
int *fixup_prog2 = test->fixup_prog2;
int *fixup_map_in_map = test->fixup_map_in_map;
int *fixup_cgroup_storage = test->fixup_cgroup_storage;
+ int *fixup_percpu_cgroup_storage = test->fixup_percpu_cgroup_storage;
+ int *fixup_map_spin_lock = test->fixup_map_spin_lock;
+ int *fixup_map_array_ro = test->fixup_map_array_ro;
+ int *fixup_map_array_wo = test->fixup_map_array_wo;
+ int *fixup_map_array_small = test->fixup_map_array_small;
+ int *fixup_sk_storage_map = test->fixup_sk_storage_map;
+ int *fixup_map_event_output = test->fixup_map_event_output;
+ int *fixup_map_reuseport_array = test->fixup_map_reuseport_array;
+ int *fixup_map_ringbuf = test->fixup_map_ringbuf;
- if (test->fill_helper)
+ if (test->fill_helper) {
+ test->fill_insns = calloc(MAX_TEST_INSNS, sizeof(struct bpf_insn));
test->fill_helper(test);
+ }
/* Allocating HTs with 1 elem is fine here, since we only test
* for verifier and not do a runtime lookup, so the only thing
* that really matters is value size in this case.
*/
- if (*fixup_map1) {
+ if (*fixup_map_hash_8b) {
map_fds[0] = create_map(BPF_MAP_TYPE_HASH, sizeof(long long),
sizeof(long long), 1);
do {
- prog[*fixup_map1].imm = map_fds[0];
- fixup_map1++;
- } while (*fixup_map1);
+ prog[*fixup_map_hash_8b].imm = map_fds[0];
+ fixup_map_hash_8b++;
+ } while (*fixup_map_hash_8b);
}
- if (*fixup_map2) {
+ if (*fixup_map_hash_48b) {
map_fds[1] = create_map(BPF_MAP_TYPE_HASH, sizeof(long long),
sizeof(struct test_val), 1);
do {
- prog[*fixup_map2].imm = map_fds[1];
- fixup_map2++;
- } while (*fixup_map2);
+ prog[*fixup_map_hash_48b].imm = map_fds[1];
+ fixup_map_hash_48b++;
+ } while (*fixup_map_hash_48b);
}
- if (*fixup_map3) {
+ if (*fixup_map_hash_16b) {
map_fds[2] = create_map(BPF_MAP_TYPE_HASH, sizeof(long long),
sizeof(struct other_val), 1);
do {
- prog[*fixup_map3].imm = map_fds[2];
- fixup_map3++;
- } while (*fixup_map3);
+ prog[*fixup_map_hash_16b].imm = map_fds[2];
+ fixup_map_hash_16b++;
+ } while (*fixup_map_hash_16b);
}
- if (*fixup_map4) {
+ if (*fixup_map_array_48b) {
map_fds[3] = create_map(BPF_MAP_TYPE_ARRAY, sizeof(int),
sizeof(struct test_val), 1);
+ update_map(map_fds[3], 0);
do {
- prog[*fixup_map4].imm = map_fds[3];
- fixup_map4++;
- } while (*fixup_map4);
+ prog[*fixup_map_array_48b].imm = map_fds[3];
+ fixup_map_array_48b++;
+ } while (*fixup_map_array_48b);
}
if (*fixup_prog1) {
- map_fds[4] = create_prog_array(prog_type, 4, 0);
+ map_fds[4] = create_prog_array(prog_type, 4, 0, 1, 2);
do {
prog[*fixup_prog1].imm = map_fds[4];
fixup_prog1++;
@@ -12960,7 +698,7 @@
}
if (*fixup_prog2) {
- map_fds[5] = create_prog_array(prog_type, 8, 7);
+ map_fds[5] = create_prog_array(prog_type, 8, 7, 1, 2);
do {
prog[*fixup_prog2].imm = map_fds[5];
fixup_prog2++;
@@ -12976,18 +714,133 @@
}
if (*fixup_cgroup_storage) {
- map_fds[7] = create_cgroup_storage();
+ map_fds[7] = create_cgroup_storage(false);
do {
prog[*fixup_cgroup_storage].imm = map_fds[7];
fixup_cgroup_storage++;
} while (*fixup_cgroup_storage);
}
+
+ if (*fixup_percpu_cgroup_storage) {
+ map_fds[8] = create_cgroup_storage(true);
+ do {
+ prog[*fixup_percpu_cgroup_storage].imm = map_fds[8];
+ fixup_percpu_cgroup_storage++;
+ } while (*fixup_percpu_cgroup_storage);
+ }
+ if (*fixup_map_sockmap) {
+ map_fds[9] = create_map(BPF_MAP_TYPE_SOCKMAP, sizeof(int),
+ sizeof(int), 1);
+ do {
+ prog[*fixup_map_sockmap].imm = map_fds[9];
+ fixup_map_sockmap++;
+ } while (*fixup_map_sockmap);
+ }
+ if (*fixup_map_sockhash) {
+ map_fds[10] = create_map(BPF_MAP_TYPE_SOCKHASH, sizeof(int),
+ sizeof(int), 1);
+ do {
+ prog[*fixup_map_sockhash].imm = map_fds[10];
+ fixup_map_sockhash++;
+ } while (*fixup_map_sockhash);
+ }
+ if (*fixup_map_xskmap) {
+ map_fds[11] = create_map(BPF_MAP_TYPE_XSKMAP, sizeof(int),
+ sizeof(int), 1);
+ do {
+ prog[*fixup_map_xskmap].imm = map_fds[11];
+ fixup_map_xskmap++;
+ } while (*fixup_map_xskmap);
+ }
+ if (*fixup_map_stacktrace) {
+ map_fds[12] = create_map(BPF_MAP_TYPE_STACK_TRACE, sizeof(u32),
+ sizeof(u64), 1);
+ do {
+ prog[*fixup_map_stacktrace].imm = map_fds[12];
+ fixup_map_stacktrace++;
+ } while (*fixup_map_stacktrace);
+ }
+ if (*fixup_map_spin_lock) {
+ map_fds[13] = create_map_spin_lock();
+ do {
+ prog[*fixup_map_spin_lock].imm = map_fds[13];
+ fixup_map_spin_lock++;
+ } while (*fixup_map_spin_lock);
+ }
+ if (*fixup_map_array_ro) {
+ map_fds[14] = __create_map(BPF_MAP_TYPE_ARRAY, sizeof(int),
+ sizeof(struct test_val), 1,
+ BPF_F_RDONLY_PROG);
+ update_map(map_fds[14], 0);
+ do {
+ prog[*fixup_map_array_ro].imm = map_fds[14];
+ fixup_map_array_ro++;
+ } while (*fixup_map_array_ro);
+ }
+ if (*fixup_map_array_wo) {
+ map_fds[15] = __create_map(BPF_MAP_TYPE_ARRAY, sizeof(int),
+ sizeof(struct test_val), 1,
+ BPF_F_WRONLY_PROG);
+ update_map(map_fds[15], 0);
+ do {
+ prog[*fixup_map_array_wo].imm = map_fds[15];
+ fixup_map_array_wo++;
+ } while (*fixup_map_array_wo);
+ }
+ if (*fixup_map_array_small) {
+ map_fds[16] = __create_map(BPF_MAP_TYPE_ARRAY, sizeof(int),
+ 1, 1, 0);
+ update_map(map_fds[16], 0);
+ do {
+ prog[*fixup_map_array_small].imm = map_fds[16];
+ fixup_map_array_small++;
+ } while (*fixup_map_array_small);
+ }
+ if (*fixup_sk_storage_map) {
+ map_fds[17] = create_sk_storage_map();
+ do {
+ prog[*fixup_sk_storage_map].imm = map_fds[17];
+ fixup_sk_storage_map++;
+ } while (*fixup_sk_storage_map);
+ }
+ if (*fixup_map_event_output) {
+ map_fds[18] = __create_map(BPF_MAP_TYPE_PERF_EVENT_ARRAY,
+ sizeof(int), sizeof(int), 1, 0);
+ do {
+ prog[*fixup_map_event_output].imm = map_fds[18];
+ fixup_map_event_output++;
+ } while (*fixup_map_event_output);
+ }
+ if (*fixup_map_reuseport_array) {
+ map_fds[19] = __create_map(BPF_MAP_TYPE_REUSEPORT_SOCKARRAY,
+ sizeof(u32), sizeof(u64), 1, 0);
+ do {
+ prog[*fixup_map_reuseport_array].imm = map_fds[19];
+ fixup_map_reuseport_array++;
+ } while (*fixup_map_reuseport_array);
+ }
+ if (*fixup_map_ringbuf) {
+ map_fds[20] = create_map(BPF_MAP_TYPE_RINGBUF, 0,
+ 0, 4096);
+ do {
+ prog[*fixup_map_ringbuf].imm = map_fds[20];
+ fixup_map_ringbuf++;
+ } while (*fixup_map_ringbuf);
+ }
}
+
+struct libcap {
+ struct __user_cap_header_struct hdr;
+ struct __user_cap_data_struct data[2];
+};
static int set_admin(bool admin)
{
cap_t caps;
- const cap_value_t cap_val = CAP_SYS_ADMIN;
+ /* need CAP_BPF, CAP_NET_ADMIN, CAP_PERFMON to load progs */
+ const cap_value_t cap_net_admin = CAP_NET_ADMIN;
+ const cap_value_t cap_sys_admin = CAP_SYS_ADMIN;
+ struct libcap *cap;
int ret = -1;
caps = cap_get_proc();
@@ -12995,10 +848,25 @@
perror("cap_get_proc");
return -1;
}
- if (cap_set_flag(caps, CAP_EFFECTIVE, 1, &cap_val,
- admin ? CAP_SET : CAP_CLEAR)) {
- perror("cap_set_flag");
+ cap = (struct libcap *)caps;
+ if (cap_set_flag(caps, CAP_EFFECTIVE, 1, &cap_sys_admin, CAP_CLEAR)) {
+ perror("cap_set_flag clear admin");
goto out;
+ }
+ if (cap_set_flag(caps, CAP_EFFECTIVE, 1, &cap_net_admin,
+ admin ? CAP_SET : CAP_CLEAR)) {
+ perror("cap_set_flag set_or_clear net");
+ goto out;
+ }
+ /* libcap is likely old and simply ignores CAP_BPF and CAP_PERFMON,
+ * so update effective bits manually
+ */
+ if (admin) {
+ cap->data[1].effective |= 1 << (38 /* CAP_PERFMON */ - 32);
+ cap->data[1].effective |= 1 << (39 /* CAP_BPF */ - 32);
+ } else {
+ cap->data[1].effective &= ~(1 << (38 - 32));
+ cap->data[1].effective &= ~(1 << (39 - 32));
}
if (cap_set_proc(caps)) {
perror("cap_set_proc");
@@ -13011,16 +879,74 @@
return ret;
}
+static int do_prog_test_run(int fd_prog, bool unpriv, uint32_t expected_val,
+ void *data, size_t size_data)
+{
+ __u8 tmp[TEST_DATA_LEN << 2];
+ __u32 size_tmp = sizeof(tmp);
+ uint32_t retval;
+ int err;
+
+ if (unpriv)
+ set_admin(true);
+ err = bpf_prog_test_run(fd_prog, 1, data, size_data,
+ tmp, &size_tmp, &retval, NULL);
+ if (unpriv)
+ set_admin(false);
+ if (err && errno != 524/*ENOTSUPP*/ && errno != EPERM) {
+ printf("Unexpected bpf_prog_test_run error ");
+ return err;
+ }
+ if (!err && retval != expected_val &&
+ expected_val != POINTER_VALUE) {
+ printf("FAIL retval %d != %d ", retval, expected_val);
+ return 1;
+ }
+
+ return 0;
+}
+
+static bool cmp_str_seq(const char *log, const char *exp)
+{
+ char needle[80];
+ const char *p, *q;
+ int len;
+
+ do {
+ p = strchr(exp, '\t');
+ if (!p)
+ p = exp + strlen(exp);
+
+ len = p - exp;
+ if (len >= sizeof(needle) || !len) {
+ printf("FAIL\nTestcase bug\n");
+ return false;
+ }
+ strncpy(needle, exp, len);
+ needle[len] = 0;
+ q = strstr(log, needle);
+ if (!q) {
+ printf("FAIL\nUnexpected verifier log in successful load!\n"
+ "EXP: %s\nRES:\n", needle);
+ return false;
+ }
+ log = q + len;
+ exp = p + 1;
+ } while (*p);
+ return true;
+}
+
static void do_test_single(struct bpf_test *test, bool unpriv,
int *passes, int *errors)
{
int fd_prog, expected_ret, alignment_prevented_execution;
int prog_len, prog_type = test->prog_type;
struct bpf_insn *prog = test->insns;
+ struct bpf_load_program_attr attr;
+ int run_errs, run_successes;
int map_fds[MAX_NR_MAPS];
const char *expected_err;
- uint32_t expected_val;
- uint32_t retval;
+ int fixup_skips;
__u32 pflags;
int i, err;
@@ -13029,27 +955,72 @@
if (!prog_type)
prog_type = BPF_PROG_TYPE_SOCKET_FILTER;
+ fixup_skips = skips;
do_test_fixup(test, prog_type, prog, map_fds);
- prog_len = probe_filter_length(prog);
+ if (test->fill_insns) {
+ prog = test->fill_insns;
+ prog_len = test->prog_len;
+ } else {
+ prog_len = probe_filter_length(prog);
+ }
+ /* If there were some map skips during fixup due to missing bpf
+ * features, skip this test.
+ */
+ if (fixup_skips != skips)
+ return;
- pflags = 0;
+ pflags = BPF_F_TEST_RND_HI32;
if (test->flags & F_LOAD_WITH_STRICT_ALIGNMENT)
pflags |= BPF_F_STRICT_ALIGNMENT;
if (test->flags & F_NEEDS_EFFICIENT_UNALIGNED_ACCESS)
pflags |= BPF_F_ANY_ALIGNMENT;
- fd_prog = bpf_verify_program(prog_type, prog, prog_len, pflags,
- "GPL", 0, bpf_vlog, sizeof(bpf_vlog), 1);
+ if (test->flags & ~3)
+ pflags |= test->flags;
expected_ret = unpriv && test->result_unpriv != UNDEF ?
test->result_unpriv : test->result;
expected_err = unpriv && test->errstr_unpriv ?
test->errstr_unpriv : test->errstr;
- expected_val = unpriv && test->retval_unpriv ?
- test->retval_unpriv : test->retval;
+ memset(&attr, 0, sizeof(attr));
+ attr.prog_type = prog_type;
+ attr.expected_attach_type = test->expected_attach_type;
+ attr.insns = prog;
+ attr.insns_cnt = prog_len;
+ attr.license = "GPL";
+ if (verbose)
+ attr.log_level = 1;
+ else if (expected_ret == VERBOSE_ACCEPT)
+ attr.log_level = 2;
+ else
+ attr.log_level = 4;
+ attr.prog_flags = pflags;
+
+ if (prog_type == BPF_PROG_TYPE_TRACING && test->kfunc) {
+ attr.attach_btf_id = libbpf_find_vmlinux_btf_id(test->kfunc,
+ attr.expected_attach_type);
+ if (attr.attach_btf_id < 0) {
+ printf("FAIL\nFailed to find BTF ID for '%s'!\n",
+ test->kfunc);
+ (*errors)++;
+ return;
+ }
+ }
+
+ fd_prog = bpf_load_program_xattr(&attr, bpf_vlog, sizeof(bpf_vlog));
+
+ /* BPF_PROG_TYPE_TRACING requires more setup and
+ * bpf_probe_prog_type won't give correct answer
+ */
+ if (fd_prog < 0 && prog_type != BPF_PROG_TYPE_TRACING &&
+ !bpf_probe_prog_type(prog_type, 0)) {
+ printf("SKIP (unsupported program type %d)\n", prog_type);
+ skips++;
+ goto close_fds;
+ }
alignment_prevented_execution = 0;
- if (expected_ret == ACCEPT) {
+ if (expected_ret == ACCEPT || expected_ret == VERBOSE_ACCEPT) {
if (fd_prog < 0) {
printf("FAIL\nFailed to load prog '%s'!\n",
strerror(errno));
@@ -13057,51 +1028,82 @@
}
#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
if (fd_prog >= 0 &&
- (test->flags & F_NEEDS_EFFICIENT_UNALIGNED_ACCESS)) {
+ (test->flags & F_NEEDS_EFFICIENT_UNALIGNED_ACCESS))
alignment_prevented_execution = 1;
- goto test_ok;
- }
#endif
+ if (expected_ret == VERBOSE_ACCEPT && !cmp_str_seq(bpf_vlog, expected_err)) {
+ goto fail_log;
+ }
} else {
if (fd_prog >= 0) {
printf("FAIL\nUnexpected success to load!\n");
goto fail_log;
}
- if (!strstr(bpf_vlog, expected_err)) {
+ if (!expected_err || !strstr(bpf_vlog, expected_err)) {
printf("FAIL\nUnexpected error message!\n\tEXP: %s\n\tRES: %s\n",
expected_err, bpf_vlog);
goto fail_log;
}
}
- if (fd_prog >= 0) {
- __u8 tmp[TEST_DATA_LEN << 2];
- __u32 size_tmp = sizeof(tmp);
+ if (!unpriv && test->insn_processed) {
+ uint32_t insn_processed;
+ char *proc;
- if (unpriv)
- set_admin(true);
- err = bpf_prog_test_run(fd_prog, 1, test->data,
- sizeof(test->data), tmp, &size_tmp,
- &retval, NULL);
- if (unpriv)
- set_admin(false);
- if (err && errno != 524/*ENOTSUPP*/ && errno != EPERM) {
- printf("Unexpected bpf_prog_test_run error\n");
- goto fail_log;
- }
- if (!err && retval != expected_val &&
- expected_val != POINTER_VALUE) {
- printf("FAIL retval %d != %d\n", retval, expected_val);
+ proc = strstr(bpf_vlog, "processed ");
+ insn_processed = atoi(proc + 10);
+ if (test->insn_processed != insn_processed) {
+ printf("FAIL\nUnexpected insn_processed %u vs %u\n",
+ insn_processed, test->insn_processed);
goto fail_log;
}
}
-#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
-test_ok:
-#endif
- (*passes)++;
- printf("OK%s\n", alignment_prevented_execution ?
- " (NOTE: not executed due to unknown alignment)" : "");
+
+ if (verbose)
+ printf(", verifier log:\n%s", bpf_vlog);
+
+ run_errs = 0;
+ run_successes = 0;
+ if (!alignment_prevented_execution && fd_prog >= 0 && test->runs >= 0) {
+ uint32_t expected_val;
+ int i;
+
+ if (!test->runs)
+ test->runs = 1;
+
+ for (i = 0; i < test->runs; i++) {
+ if (unpriv && test->retvals[i].retval_unpriv)
+ expected_val = test->retvals[i].retval_unpriv;
+ else
+ expected_val = test->retvals[i].retval;
+
+ err = do_prog_test_run(fd_prog, unpriv, expected_val,
+ test->retvals[i].data,
+ sizeof(test->retvals[i].data));
+ if (err) {
+ printf("(run %d/%d) ", i + 1, test->runs);
+ run_errs++;
+ } else {
+ run_successes++;
+ }
+ }
+ }
+
+ if (!run_errs) {
+ (*passes)++;
+ if (run_successes > 1)
+ printf("%d cases ", run_successes);
+ printf("OK");
+ if (alignment_prevented_execution)
+ printf(" (NOTE: not executed due to unknown alignment)");
+ printf("\n");
+ } else {
+ printf("\n");
+ goto fail_log;
+ }
close_fds:
+ if (test->fill_insns)
+ free(test->fill_insns);
close(fd_prog);
for (i = 0; i < MAX_NR_MAPS; i++)
close(map_fds[i]);
@@ -13115,9 +1117,11 @@
static bool is_admin(void)
{
+ cap_flag_value_t net_priv = CAP_CLEAR;
+ bool perfmon_priv = false;
+ bool bpf_priv = false;
+ struct libcap *cap;
cap_t caps;
- cap_flag_value_t sysadmin = CAP_CLEAR;
- const cap_value_t cap_val = CAP_SYS_ADMIN;
#ifdef CAP_IS_SUPPORTED
if (!CAP_IS_SUPPORTED(CAP_SETFCAP)) {
@@ -13130,11 +1134,14 @@
perror("cap_get_proc");
return false;
}
- if (cap_get_flag(caps, cap_val, CAP_EFFECTIVE, &sysadmin))
- perror("cap_get_flag");
+ cap = (struct libcap *)caps;
+ bpf_priv = cap->data[1].effective & (1 << (39/* CAP_BPF */ - 32));
+ perfmon_priv = cap->data[1].effective & (1 << (38/* CAP_PERFMON */ - 32));
+ if (cap_get_flag(caps, CAP_NET_ADMIN, CAP_EFFECTIVE, &net_priv))
+ perror("cap_get_flag NET");
if (cap_free(caps))
perror("cap_free");
- return (sysadmin == CAP_SET);
+ return bpf_priv && perfmon_priv && net_priv == CAP_SET;
}
static void get_unpriv_disabled()
@@ -13155,19 +1162,6 @@
static bool test_as_unpriv(struct bpf_test *test)
{
-#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
- /* Some architectures have strict alignment requirements. In
- * that case, the BPF verifier detects if a program has
- * unaligned accesses and rejects them. A user can pass
- * BPF_F_ANY_ALIGNMENT to a program to override this
- * check. That, however, will only work when a privileged user
- * loads a program. An unprivileged user loading a program
- * with this flag will be rejected prior entering the
- * verifier.
- */
- if (test->flags & F_NEEDS_EFFICIENT_UNALIGNED_ACCESS)
- return false;
-#endif
return !test->prog_type ||
test->prog_type == BPF_PROG_TYPE_SOCKET_FILTER ||
test->prog_type == BPF_PROG_TYPE_CGROUP_SKB;
@@ -13175,7 +1169,7 @@
static int do_test(bool unpriv, unsigned int from, unsigned int to)
{
- int i, passes = 0, errors = 0, skips = 0;
+ int i, passes = 0, errors = 0;
for (i = from; i < to; i++) {
struct bpf_test *test = &tests[i];
@@ -13213,17 +1207,24 @@
{
unsigned int from = 0, to = ARRAY_SIZE(tests);
bool unpriv = !is_admin();
+ int arg = 1;
+
+ if (argc > 1 && strcmp(argv[1], "-v") == 0) {
+ arg++;
+ verbose = true;
+ argc--;
+ }
if (argc == 3) {
- unsigned int l = atoi(argv[argc - 2]);
- unsigned int u = atoi(argv[argc - 1]);
+ unsigned int l = atoi(argv[arg]);
+ unsigned int u = atoi(argv[arg + 1]);
if (l < to && u < to) {
from = l;
to = u + 1;
}
} else if (argc == 2) {
- unsigned int t = atoi(argv[argc - 1]);
+ unsigned int t = atoi(argv[arg]);
if (t < to) {
from = t;
--
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