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/net/sched/cls_bpf.c | 77 +++++++++++++++++++-------------------
1 files changed, 39 insertions(+), 38 deletions(-)
diff --git a/kernel/net/sched/cls_bpf.c b/kernel/net/sched/cls_bpf.c
index 5d10012..6e3e63d 100644
--- a/kernel/net/sched/cls_bpf.c
+++ b/kernel/net/sched/cls_bpf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Berkeley Packet Filter based traffic classifier
*
@@ -6,10 +7,6 @@
* ematches.
*
* (C) 2013 Daniel Borkmann <dborkman@redhat.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/module.h>
@@ -157,8 +154,7 @@
skip_sw = prog && tc_skip_sw(prog->gen_flags);
obj = prog ?: oldprog;
- tc_cls_common_offload_init(&cls_bpf.common, tp, obj->gen_flags,
- extack);
+ tc_cls_common_offload_init(&cls_bpf.common, tp, obj->gen_flags, extack);
cls_bpf.command = TC_CLSBPF_OFFLOAD;
cls_bpf.exts = &obj->exts;
cls_bpf.prog = prog ? prog->filter : NULL;
@@ -166,18 +162,24 @@
cls_bpf.name = obj->bpf_name;
cls_bpf.exts_integrated = obj->exts_integrated;
- if (oldprog)
- tcf_block_offload_dec(block, &oldprog->gen_flags);
+ if (oldprog && prog)
+ err = tc_setup_cb_replace(block, tp, TC_SETUP_CLSBPF, &cls_bpf,
+ skip_sw, &oldprog->gen_flags,
+ &oldprog->in_hw_count,
+ &prog->gen_flags, &prog->in_hw_count,
+ true);
+ else if (prog)
+ err = tc_setup_cb_add(block, tp, TC_SETUP_CLSBPF, &cls_bpf,
+ skip_sw, &prog->gen_flags,
+ &prog->in_hw_count, true);
+ else
+ err = tc_setup_cb_destroy(block, tp, TC_SETUP_CLSBPF, &cls_bpf,
+ skip_sw, &oldprog->gen_flags,
+ &oldprog->in_hw_count, true);
- err = tc_setup_cb_call(block, NULL, TC_SETUP_CLSBPF, &cls_bpf, skip_sw);
- if (prog) {
- if (err < 0) {
- cls_bpf_offload_cmd(tp, oldprog, prog, extack);
- return err;
- } else if (err > 0) {
- prog->in_hw_count = err;
- tcf_block_offload_inc(block, &prog->gen_flags);
- }
+ if (prog && err) {
+ cls_bpf_offload_cmd(tp, oldprog, prog, extack);
+ return err;
}
if (prog && skip_sw && !(prog->gen_flags & TCA_CLS_FLAGS_IN_HW))
@@ -234,7 +236,7 @@
cls_bpf.name = prog->bpf_name;
cls_bpf.exts_integrated = prog->exts_integrated;
- tc_setup_cb_call(block, NULL, TC_SETUP_CLSBPF, &cls_bpf, false);
+ tc_setup_cb_call(block, TC_SETUP_CLSBPF, &cls_bpf, false, true);
}
static int cls_bpf_init(struct tcf_proto *tp)
@@ -298,7 +300,7 @@
}
static int cls_bpf_delete(struct tcf_proto *tp, void *arg, bool *last,
- struct netlink_ext_ack *extack)
+ bool rtnl_held, struct netlink_ext_ack *extack)
{
struct cls_bpf_head *head = rtnl_dereference(tp->root);
@@ -307,7 +309,7 @@
return 0;
}
-static void cls_bpf_destroy(struct tcf_proto *tp,
+static void cls_bpf_destroy(struct tcf_proto *tp, bool rtnl_held,
struct netlink_ext_ack *extack)
{
struct cls_bpf_head *head = rtnl_dereference(tp->root);
@@ -417,7 +419,8 @@
if ((!is_bpf && !is_ebpf) || (is_bpf && is_ebpf))
return -EINVAL;
- ret = tcf_exts_validate(net, tp, tb, est, &prog->exts, ovr, extack);
+ ret = tcf_exts_validate(net, tp, tb, est, &prog->exts, ovr, true,
+ extack);
if (ret < 0)
return ret;
@@ -455,7 +458,8 @@
static int cls_bpf_change(struct net *net, struct sk_buff *in_skb,
struct tcf_proto *tp, unsigned long base,
u32 handle, struct nlattr **tca,
- void **arg, bool ovr, struct netlink_ext_ack *extack)
+ void **arg, bool ovr, bool rtnl_held,
+ struct netlink_ext_ack *extack)
{
struct cls_bpf_head *head = rtnl_dereference(tp->root);
struct cls_bpf_prog *oldprog = *arg;
@@ -466,8 +470,8 @@
if (tca[TCA_OPTIONS] == NULL)
return -EINVAL;
- ret = nla_parse_nested(tb, TCA_BPF_MAX, tca[TCA_OPTIONS], bpf_policy,
- NULL);
+ ret = nla_parse_nested_deprecated(tb, TCA_BPF_MAX, tca[TCA_OPTIONS],
+ bpf_policy, NULL);
if (ret < 0)
return ret;
@@ -475,7 +479,7 @@
if (!prog)
return -ENOBUFS;
- ret = tcf_exts_init(&prog->exts, TCA_BPF_ACT, TCA_BPF_POLICE);
+ ret = tcf_exts_init(&prog->exts, net, TCA_BPF_ACT, TCA_BPF_POLICE);
if (ret < 0)
goto errout;
@@ -575,7 +579,7 @@
}
static int cls_bpf_dump(struct net *net, struct tcf_proto *tp, void *fh,
- struct sk_buff *skb, struct tcmsg *tm)
+ struct sk_buff *skb, struct tcmsg *tm, bool rtnl_held)
{
struct cls_bpf_prog *prog = fh;
struct nlattr *nest;
@@ -589,7 +593,7 @@
cls_bpf_offload_update_stats(tp, prog);
- nest = nla_nest_start(skb, TCA_OPTIONS);
+ nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
if (nest == NULL)
goto nla_put_failure;
@@ -640,7 +644,8 @@
}
}
-static void cls_bpf_walk(struct tcf_proto *tp, struct tcf_walker *arg)
+static void cls_bpf_walk(struct tcf_proto *tp, struct tcf_walker *arg,
+ bool rtnl_held)
{
struct cls_bpf_head *head = rtnl_dereference(tp->root);
struct cls_bpf_prog *prog;
@@ -657,7 +662,7 @@
}
}
-static int cls_bpf_reoffload(struct tcf_proto *tp, bool add, tc_setup_cb_t *cb,
+static int cls_bpf_reoffload(struct tcf_proto *tp, bool add, flow_setup_cb_t *cb,
void *cb_priv, struct netlink_ext_ack *extack)
{
struct cls_bpf_head *head = rtnl_dereference(tp->root);
@@ -679,15 +684,11 @@
cls_bpf.name = prog->bpf_name;
cls_bpf.exts_integrated = prog->exts_integrated;
- err = cb(TC_SETUP_CLSBPF, &cls_bpf, cb_priv);
- if (err) {
- if (add && tc_skip_sw(prog->gen_flags))
- return err;
- continue;
- }
-
- tc_cls_offload_cnt_update(block, &prog->in_hw_count,
- &prog->gen_flags, add);
+ err = tc_setup_cb_reoffload(block, tp, add, cb, TC_SETUP_CLSBPF,
+ &cls_bpf, cb_priv, &prog->gen_flags,
+ &prog->in_hw_count);
+ if (err)
+ return err;
}
return 0;
--
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