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-rw-r--r--fs/nfsd/nfs3xdr.c55
-rw-r--r--fs/nfsd/nfsxdr.c39
2 files changed, 34 insertions, 60 deletions
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
index 43fb360784b..10f6e7dcf63 100644
--- a/fs/nfsd/nfs3xdr.c
+++ b/fs/nfsd/nfs3xdr.c
@@ -239,7 +239,7 @@ static __be32 *
encode_post_op_attr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp)
{
struct dentry *dentry = fhp->fh_dentry;
- if (dentry && dentry->d_inode != NULL) {
+ if (dentry && dentry->d_inode) {
int err;
struct kstat stat;
@@ -300,9 +300,9 @@ int
nfs3svc_decode_sattrargs(struct svc_rqst *rqstp, __be32 *p,
struct nfsd3_sattrargs *args)
{
- if (!(p = decode_fh(p, &args->fh))
- || !(p = decode_sattr3(p, &args->attrs)))
+ if (!(p = decode_fh(p, &args->fh)))
return 0;
+ p = decode_sattr3(p, &args->attrs);
if ((args->check_guard = ntohl(*p++)) != 0) {
struct timespec time;
@@ -343,9 +343,9 @@ nfs3svc_decode_readargs(struct svc_rqst *rqstp, __be32 *p,
int v,pn;
u32 max_blocksize = svc_max_payload(rqstp);
- if (!(p = decode_fh(p, &args->fh))
- || !(p = xdr_decode_hyper(p, &args->offset)))
+ if (!(p = decode_fh(p, &args->fh)))
return 0;
+ p = xdr_decode_hyper(p, &args->offset);
len = args->count = ntohl(*p++);
@@ -372,9 +372,9 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
unsigned int len, v, hdr, dlen;
u32 max_blocksize = svc_max_payload(rqstp);
- if (!(p = decode_fh(p, &args->fh))
- || !(p = xdr_decode_hyper(p, &args->offset)))
+ if (!(p = decode_fh(p, &args->fh)))
return 0;
+ p = xdr_decode_hyper(p, &args->offset);
args->count = ntohl(*p++);
args->stable = ntohl(*p++);
@@ -388,29 +388,16 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
/*
* Check to make sure that we got the right number of
* bytes.
- *
- * If more than one page was used, then compute the length
- * of the data in the request as the total size of the
- * request minus the transport protocol headers minus the
- * RPC protocol headers minus the NFS protocol fields
- * already consumed. If the request fits into a single
- * page, then compete the length of the data as the size
- * of the NFS portion of the request minus the NFS
- * protocol fields already consumed.
*/
hdr = (void*)p - rqstp->rq_arg.head[0].iov_base;
- if (rqstp->rq_respages != rqstp->rq_pages + 1) {
- dlen = rqstp->rq_arg.len -
- (PAGE_SIZE - rqstp->rq_arg.head[0].iov_len) - hdr;
- } else {
- dlen = rqstp->rq_arg.head[0].iov_len - hdr;
- }
+ dlen = rqstp->rq_arg.head[0].iov_len + rqstp->rq_arg.page_len
+ - hdr;
/*
* Round the length of the data which was specified up to
* the next multiple of XDR units and then compare that
* against the length which was actually received.
*/
- if (dlen != ((len + 3) & ~0x3))
+ if (dlen != XDR_QUADLEN(len)*4)
return 0;
if (args->count > max_blocksize) {
@@ -442,8 +429,7 @@ nfs3svc_decode_createargs(struct svc_rqst *rqstp, __be32 *p,
switch (args->createmode = ntohl(*p++)) {
case NFS3_CREATE_UNCHECKED:
case NFS3_CREATE_GUARDED:
- if (!(p = decode_sattr3(p, &args->attrs)))
- return 0;
+ p = decode_sattr3(p, &args->attrs);
break;
case NFS3_CREATE_EXCLUSIVE:
args->verf = p;
@@ -459,10 +445,10 @@ int
nfs3svc_decode_mkdirargs(struct svc_rqst *rqstp, __be32 *p,
struct nfsd3_createargs *args)
{
- if (!(p = decode_fh(p, &args->fh))
- || !(p = decode_filename(p, &args->name, &args->len))
- || !(p = decode_sattr3(p, &args->attrs)))
+ if (!(p = decode_fh(p, &args->fh)) ||
+ !(p = decode_filename(p, &args->name, &args->len)))
return 0;
+ p = decode_sattr3(p, &args->attrs);
return xdr_argsize_check(rqstp, p);
}
@@ -476,11 +462,12 @@ nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p,
char *old, *new;
struct kvec *vec;
- if (!(p = decode_fh(p, &args->ffh))
- || !(p = decode_filename(p, &args->fname, &args->flen))
- || !(p = decode_sattr3(p, &args->attrs))
+ if (!(p = decode_fh(p, &args->ffh)) ||
+ !(p = decode_filename(p, &args->fname, &args->flen))
)
return 0;
+ p = decode_sattr3(p, &args->attrs);
+
/* now decode the pathname, which might be larger than the first page.
* As we have to check for nul's anyway, we copy it into a new page
* This page appears in the rq_res.pages list, but as pages_len is always
@@ -530,10 +517,8 @@ nfs3svc_decode_mknodargs(struct svc_rqst *rqstp, __be32 *p,
args->ftype = ntohl(*p++);
if (args->ftype == NF3BLK || args->ftype == NF3CHR
- || args->ftype == NF3SOCK || args->ftype == NF3FIFO) {
- if (!(p = decode_sattr3(p, &args->attrs)))
- return 0;
- }
+ || args->ftype == NF3SOCK || args->ftype == NF3FIFO)
+ p = decode_sattr3(p, &args->attrs);
if (args->ftype == NF3BLK || args->ftype == NF3CHR) {
args->major = ntohl(*p++);
diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
index 6035e03655c..cb3e7fadb77 100644
--- a/fs/nfsd/nfsxdr.c
+++ b/fs/nfsd/nfsxdr.c
@@ -231,9 +231,10 @@ int
nfssvc_decode_sattrargs(struct svc_rqst *rqstp, __be32 *p,
struct nfsd_sattrargs *args)
{
- if (!(p = decode_fh(p, &args->fh))
- || !(p = decode_sattr(p, &args->attrs)))
+ p = decode_fh(p, &args->fh);
+ if (!p)
return 0;
+ p = decode_sattr(p, &args->attrs);
return xdr_argsize_check(rqstp, p);
}
@@ -303,29 +304,17 @@ nfssvc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
/*
* Check to make sure that we got the right number of
* bytes.
- *
- * If more than one page was used, then compute the length
- * of the data in the request as the total size of the
- * request minus the transport protocol headers minus the
- * RPC protocol headers minus the NFS protocol fields
- * already consumed. If the request fits into a single
- * page, then compete the length of the data as the size
- * of the NFS portion of the request minus the NFS
- * protocol fields already consumed.
*/
hdr = (void*)p - rqstp->rq_arg.head[0].iov_base;
- if (rqstp->rq_respages != rqstp->rq_pages + 1) {
- dlen = rqstp->rq_arg.len -
- (PAGE_SIZE - rqstp->rq_arg.head[0].iov_len) - hdr;
- } else {
- dlen = rqstp->rq_arg.head[0].iov_len - hdr;
- }
+ dlen = rqstp->rq_arg.head[0].iov_len + rqstp->rq_arg.page_len
+ - hdr;
+
/*
* Round the length of the data which was specified up to
* the next multiple of XDR units and then compare that
* against the length which was actually received.
*/
- if (dlen != ((len + 3) & ~0x3))
+ if (dlen != XDR_QUADLEN(len)*4)
return 0;
rqstp->rq_vec[0].iov_base = (void*)p;
@@ -346,10 +335,10 @@ int
nfssvc_decode_createargs(struct svc_rqst *rqstp, __be32 *p,
struct nfsd_createargs *args)
{
- if (!(p = decode_fh(p, &args->fh))
- || !(p = decode_filename(p, &args->name, &args->len))
- || !(p = decode_sattr(p, &args->attrs)))
+ if ( !(p = decode_fh(p, &args->fh))
+ || !(p = decode_filename(p, &args->name, &args->len)))
return 0;
+ p = decode_sattr(p, &args->attrs);
return xdr_argsize_check(rqstp, p);
}
@@ -393,11 +382,11 @@ int
nfssvc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p,
struct nfsd_symlinkargs *args)
{
- if (!(p = decode_fh(p, &args->ffh))
- || !(p = decode_filename(p, &args->fname, &args->flen))
- || !(p = decode_pathname(p, &args->tname, &args->tlen))
- || !(p = decode_sattr(p, &args->attrs)))
+ if ( !(p = decode_fh(p, &args->ffh))
+ || !(p = decode_filename(p, &args->fname, &args->flen))
+ || !(p = decode_pathname(p, &args->tname, &args->tlen)))
return 0;
+ p = decode_sattr(p, &args->attrs);
return xdr_argsize_check(rqstp, p);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-17 10:18:42 +0000