From 23fa18eaa71266feff7ba8d83022d9e1cc83c65a Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:42:03 +0000
Subject: [PATCH] disable pwm7
---
kernel/fs/nfs/callback_xdr.c | 85 +++++++++++++++++++-----------------------
1 files changed, 39 insertions(+), 46 deletions(-)
diff --git a/kernel/fs/nfs/callback_xdr.c b/kernel/fs/nfs/callback_xdr.c
index 76aa1b4..ca8a4aa 100644
--- a/kernel/fs/nfs/callback_xdr.c
+++ b/kernel/fs/nfs/callback_xdr.c
@@ -18,6 +18,7 @@
#include "callback.h"
#include "internal.h"
#include "nfs4session.h"
+#include "nfs4trace.h"
#define CB_OP_TAGLEN_MAXSZ (512)
#define CB_OP_HDR_RES_MAXSZ (2 * 4) // opcode, status
@@ -72,16 +73,6 @@
return xdr_ressize_check(rqstp, p);
}
-static __be32 *read_buf(struct xdr_stream *xdr, size_t nbytes)
-{
- __be32 *p;
-
- p = xdr_inline_decode(xdr, nbytes);
- if (unlikely(p == NULL))
- printk(KERN_WARNING "NFS: NFSv4 callback reply buffer overflowed!\n");
- return p;
-}
-
static __be32 decode_string(struct xdr_stream *xdr, unsigned int *len,
const char **str, size_t maxlen)
{
@@ -98,13 +89,13 @@
{
__be32 *p;
- p = read_buf(xdr, 4);
+ p = xdr_inline_decode(xdr, 4);
if (unlikely(p == NULL))
return htonl(NFS4ERR_RESOURCE);
fh->size = ntohl(*p);
if (fh->size > NFS4_FHSIZE)
return htonl(NFS4ERR_BADHANDLE);
- p = read_buf(xdr, fh->size);
+ p = xdr_inline_decode(xdr, fh->size);
if (unlikely(p == NULL))
return htonl(NFS4ERR_RESOURCE);
memcpy(&fh->data[0], p, fh->size);
@@ -117,11 +108,11 @@
__be32 *p;
unsigned int attrlen;
- p = read_buf(xdr, 4);
+ p = xdr_inline_decode(xdr, 4);
if (unlikely(p == NULL))
return htonl(NFS4ERR_RESOURCE);
attrlen = ntohl(*p);
- p = read_buf(xdr, attrlen << 2);
+ p = xdr_inline_decode(xdr, attrlen << 2);
if (unlikely(p == NULL))
return htonl(NFS4ERR_RESOURCE);
if (likely(attrlen > 0))
@@ -135,7 +126,7 @@
{
__be32 *p;
- p = read_buf(xdr, NFS4_STATEID_SIZE);
+ p = xdr_inline_decode(xdr, NFS4_STATEID_SIZE);
if (unlikely(p == NULL))
return htonl(NFS4ERR_RESOURCE);
memcpy(stateid->data, p, NFS4_STATEID_SIZE);
@@ -156,7 +147,7 @@
status = decode_string(xdr, &hdr->taglen, &hdr->tag, CB_OP_TAGLEN_MAXSZ);
if (unlikely(status != 0))
return status;
- p = read_buf(xdr, 12);
+ p = xdr_inline_decode(xdr, 12);
if (unlikely(p == NULL))
return htonl(NFS4ERR_RESOURCE);
hdr->minorversion = ntohl(*p++);
@@ -176,7 +167,7 @@
static __be32 decode_op_hdr(struct xdr_stream *xdr, unsigned int *op)
{
__be32 *p;
- p = read_buf(xdr, 4);
+ p = xdr_inline_decode(xdr, 4);
if (unlikely(p == NULL))
return htonl(NFS4ERR_RESOURCE_HDR);
*op = ntohl(*p);
@@ -205,7 +196,7 @@
status = decode_delegation_stateid(xdr, &args->stateid);
if (unlikely(status != 0))
return status;
- p = read_buf(xdr, 4);
+ p = xdr_inline_decode(xdr, 4);
if (unlikely(p == NULL))
return htonl(NFS4ERR_RESOURCE);
args->truncate = ntohl(*p);
@@ -227,7 +218,7 @@
__be32 status = 0;
uint32_t iomode;
- p = read_buf(xdr, 4 * sizeof(uint32_t));
+ p = xdr_inline_decode(xdr, 4 * sizeof(uint32_t));
if (unlikely(p == NULL))
return htonl(NFS4ERR_BADXDR);
@@ -245,14 +236,14 @@
if (unlikely(status != 0))
return status;
- p = read_buf(xdr, 2 * sizeof(uint64_t));
+ p = xdr_inline_decode(xdr, 2 * sizeof(uint64_t));
if (unlikely(p == NULL))
return htonl(NFS4ERR_BADXDR);
p = xdr_decode_hyper(p, &args->cbl_range.offset);
p = xdr_decode_hyper(p, &args->cbl_range.length);
return decode_layout_stateid(xdr, &args->cbl_stateid);
} else if (args->cbl_recall_type == RETURN_FSID) {
- p = read_buf(xdr, 2 * sizeof(uint64_t));
+ p = xdr_inline_decode(xdr, 2 * sizeof(uint64_t));
if (unlikely(p == NULL))
return htonl(NFS4ERR_BADXDR);
p = xdr_decode_hyper(p, &args->cbl_fsid.major);
@@ -273,7 +264,7 @@
__be32 status = 0;
/* Num of device notifications */
- p = read_buf(xdr, sizeof(uint32_t));
+ p = xdr_inline_decode(xdr, sizeof(uint32_t));
if (unlikely(p == NULL)) {
status = htonl(NFS4ERR_BADXDR);
goto out;
@@ -281,10 +272,6 @@
n = ntohl(*p++);
if (n == 0)
goto out;
- if (n > ULONG_MAX / sizeof(*args->devs)) {
- status = htonl(NFS4ERR_BADXDR);
- goto out;
- }
args->devs = kmalloc_array(n, sizeof(*args->devs), GFP_KERNEL);
if (!args->devs) {
@@ -296,7 +283,8 @@
for (i = 0; i < n; i++) {
struct cb_devicenotifyitem *dev = &args->devs[i];
- p = read_buf(xdr, (4 * sizeof(uint32_t)) + NFS4_DEVICEID4_SIZE);
+ p = xdr_inline_decode(xdr, (4 * sizeof(uint32_t)) +
+ NFS4_DEVICEID4_SIZE);
if (unlikely(p == NULL)) {
status = htonl(NFS4ERR_BADXDR);
goto err;
@@ -327,7 +315,7 @@
p += XDR_QUADLEN(NFS4_DEVICEID4_SIZE);
if (dev->cbd_layout_type == NOTIFY_DEVICEID4_CHANGE) {
- p = read_buf(xdr, sizeof(uint32_t));
+ p = xdr_inline_decode(xdr, sizeof(uint32_t));
if (unlikely(p == NULL)) {
status = htonl(NFS4ERR_BADXDR);
goto err;
@@ -359,7 +347,7 @@
{
__be32 *p;
- p = read_buf(xdr, NFS4_MAX_SESSIONID_LEN);
+ p = xdr_inline_decode(xdr, NFS4_MAX_SESSIONID_LEN);
if (unlikely(p == NULL))
return htonl(NFS4ERR_RESOURCE);
@@ -379,13 +367,13 @@
goto out;
status = htonl(NFS4ERR_RESOURCE);
- p = read_buf(xdr, sizeof(uint32_t));
+ p = xdr_inline_decode(xdr, sizeof(uint32_t));
if (unlikely(p == NULL))
goto out;
rc_list->rcl_nrefcalls = ntohl(*p++);
if (rc_list->rcl_nrefcalls) {
- p = read_buf(xdr,
+ p = xdr_inline_decode(xdr,
rc_list->rcl_nrefcalls * 2 * sizeof(uint32_t));
if (unlikely(p == NULL))
goto out;
@@ -418,7 +406,7 @@
if (status)
return status;
- p = read_buf(xdr, 5 * sizeof(uint32_t));
+ p = xdr_inline_decode(xdr, 5 * sizeof(uint32_t));
if (unlikely(p == NULL))
return htonl(NFS4ERR_RESOURCE);
@@ -461,7 +449,7 @@
uint32_t bitmap[2];
__be32 *p, status;
- p = read_buf(xdr, 4);
+ p = xdr_inline_decode(xdr, 4);
if (unlikely(p == NULL))
return htonl(NFS4ERR_BADXDR);
args->craa_objs_to_keep = ntohl(*p++);
@@ -480,7 +468,7 @@
struct cb_recallslotargs *args = argp;
__be32 *p;
- p = read_buf(xdr, 4);
+ p = xdr_inline_decode(xdr, 4);
if (unlikely(p == NULL))
return htonl(NFS4ERR_BADXDR);
args->crsa_target_highest_slotid = ntohl(*p++);
@@ -492,14 +480,14 @@
__be32 *p;
unsigned int len;
- p = read_buf(xdr, 12);
+ p = xdr_inline_decode(xdr, 12);
if (unlikely(p == NULL))
return htonl(NFS4ERR_BADXDR);
p = xdr_decode_hyper(p, &args->cbnl_owner.clientid);
len = be32_to_cpu(*p);
- p = read_buf(xdr, len);
+ p = xdr_inline_decode(xdr, len);
if (unlikely(p == NULL))
return htonl(NFS4ERR_BADXDR);
@@ -537,7 +525,7 @@
__be32 *p;
/* skip the always zero field */
- p = read_buf(xdr, 4);
+ p = xdr_inline_decode(xdr, 4);
if (unlikely(!p))
goto out;
p++;
@@ -577,7 +565,7 @@
return status;
/* decode status */
- p = read_buf(xdr, 4);
+ p = xdr_inline_decode(xdr, 4);
if (unlikely(!p))
goto out;
args->error = ntohl(*p++);
@@ -636,7 +624,7 @@
return 0;
}
-static __be32 encode_attr_time(struct xdr_stream *xdr, const struct timespec *time)
+static __be32 encode_attr_time(struct xdr_stream *xdr, const struct timespec64 *time)
{
__be32 *p;
@@ -648,14 +636,14 @@
return 0;
}
-static __be32 encode_attr_ctime(struct xdr_stream *xdr, const uint32_t *bitmap, const struct timespec *time)
+static __be32 encode_attr_ctime(struct xdr_stream *xdr, const uint32_t *bitmap, const struct timespec64 *time)
{
if (!(bitmap[1] & FATTR4_WORD1_TIME_METADATA))
return 0;
return encode_attr_time(xdr,time);
}
-static __be32 encode_attr_mtime(struct xdr_stream *xdr, const uint32_t *bitmap, const struct timespec *time)
+static __be32 encode_attr_mtime(struct xdr_stream *xdr, const uint32_t *bitmap, const struct timespec64 *time)
{
if (!(bitmap[1] & FATTR4_WORD1_TIME_MODIFY))
return 0;
@@ -943,10 +931,11 @@
};
unsigned int nops = 0;
- xdr_init_decode(&xdr_in, &rqstp->rq_arg, rqstp->rq_arg.head[0].iov_base);
+ xdr_init_decode(&xdr_in, &rqstp->rq_arg,
+ rqstp->rq_arg.head[0].iov_base, NULL);
p = (__be32*)((char *)rqstp->rq_res.head[0].iov_base + rqstp->rq_res.head[0].iov_len);
- xdr_init_encode(&xdr_out, &rqstp->rq_res, p);
+ xdr_init_encode(&xdr_out, &rqstp->rq_res, p, NULL);
status = decode_compound_hdr_arg(&xdr_in, &hdr_arg);
if (status == htonl(NFS4ERR_RESOURCE))
@@ -954,9 +943,13 @@
if (hdr_arg.minorversion == 0) {
cps.clp = nfs4_find_client_ident(SVC_NET(rqstp), hdr_arg.cb_ident);
- if (!cps.clp || !check_gss_callback_principal(cps.clp, rqstp)) {
- if (cps.clp)
- nfs_put_client(cps.clp);
+ if (!cps.clp) {
+ trace_nfs_cb_no_clp(rqstp->rq_xid, hdr_arg.cb_ident);
+ goto out_invalidcred;
+ }
+ if (!check_gss_callback_principal(cps.clp, rqstp)) {
+ trace_nfs_cb_badprinc(rqstp->rq_xid, hdr_arg.cb_ident);
+ nfs_put_client(cps.clp);
goto out_invalidcred;
}
}
--
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