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path: root/fs/nfsd/nfsxdr.c
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Diffstat (limited to 'fs/nfsd/nfsxdr.c')
-rw-r--r--fs/nfsd/nfsxdr.c187
1 files changed, 82 insertions, 105 deletions
diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
index a06c05fe3b42..aba8520b4b8b 100644
--- a/fs/nfsd/nfsxdr.c
+++ b/fs/nfsd/nfsxdr.c
@@ -64,7 +64,7 @@ svcxdr_decode_fhandle(struct xdr_stream *xdr, struct svc_fh *fhp)
if (!p)
return false;
fh_init(fhp, NFS_FHSIZE);
- memcpy(&fhp->fh_handle.fh_base, p, NFS_FHSIZE);
+ memcpy(&fhp->fh_handle.fh_raw, p, NFS_FHSIZE);
fhp->fh_handle.fh_size = NFS_FHSIZE;
return true;
@@ -78,7 +78,7 @@ svcxdr_encode_fhandle(struct xdr_stream *xdr, const struct svc_fh *fhp)
p = xdr_reserve_space(xdr, NFS_FHSIZE);
if (!p)
return false;
- memcpy(p, &fhp->fh_handle.fh_base, NFS_FHSIZE);
+ memcpy(p, &fhp->fh_handle.fh_raw, NFS_FHSIZE);
return true;
}
@@ -272,94 +272,81 @@ svcxdr_encode_fattr(struct svc_rqst *rqstp, struct xdr_stream *xdr,
* XDR decode functions
*/
-int
-nfssvc_decode_fhandleargs(struct svc_rqst *rqstp, __be32 *p)
+bool
+nfssvc_decode_fhandleargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
{
- struct xdr_stream *xdr = &rqstp->rq_arg_stream;
struct nfsd_fhandle *args = rqstp->rq_argp;
return svcxdr_decode_fhandle(xdr, &args->fh);
}
-int
-nfssvc_decode_sattrargs(struct svc_rqst *rqstp, __be32 *p)
+bool
+nfssvc_decode_sattrargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
{
- struct xdr_stream *xdr = &rqstp->rq_arg_stream;
struct nfsd_sattrargs *args = rqstp->rq_argp;
return svcxdr_decode_fhandle(xdr, &args->fh) &&
svcxdr_decode_sattr(rqstp, xdr, &args->attrs);
}
-int
-nfssvc_decode_diropargs(struct svc_rqst *rqstp, __be32 *p)
+bool
+nfssvc_decode_diropargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
{
- struct xdr_stream *xdr = &rqstp->rq_arg_stream;
struct nfsd_diropargs *args = rqstp->rq_argp;
return svcxdr_decode_diropargs(xdr, &args->fh, &args->name, &args->len);
}
-int
-nfssvc_decode_readargs(struct svc_rqst *rqstp, __be32 *p)
+bool
+nfssvc_decode_readargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
{
- struct xdr_stream *xdr = &rqstp->rq_arg_stream;
struct nfsd_readargs *args = rqstp->rq_argp;
u32 totalcount;
if (!svcxdr_decode_fhandle(xdr, &args->fh))
- return 0;
+ return false;
if (xdr_stream_decode_u32(xdr, &args->offset) < 0)
- return 0;
+ return false;
if (xdr_stream_decode_u32(xdr, &args->count) < 0)
- return 0;
+ return false;
/* totalcount is ignored */
if (xdr_stream_decode_u32(xdr, &totalcount) < 0)
- return 0;
+ return false;
- return 1;
+ return true;
}
-int
-nfssvc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p)
+bool
+nfssvc_decode_writeargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
{
- struct xdr_stream *xdr = &rqstp->rq_arg_stream;
struct nfsd_writeargs *args = rqstp->rq_argp;
- struct kvec *head = rqstp->rq_arg.head;
- struct kvec *tail = rqstp->rq_arg.tail;
u32 beginoffset, totalcount;
- size_t remaining;
if (!svcxdr_decode_fhandle(xdr, &args->fh))
- return 0;
+ return false;
/* beginoffset is ignored */
if (xdr_stream_decode_u32(xdr, &beginoffset) < 0)
- return 0;
+ return false;
if (xdr_stream_decode_u32(xdr, &args->offset) < 0)
- return 0;
+ return false;
/* totalcount is ignored */
if (xdr_stream_decode_u32(xdr, &totalcount) < 0)
- return 0;
+ return false;
/* opaque data */
if (xdr_stream_decode_u32(xdr, &args->len) < 0)
- return 0;
+ return false;
if (args->len > NFSSVC_MAXBLKSIZE_V2)
- return 0;
- remaining = head->iov_len + rqstp->rq_arg.page_len + tail->iov_len;
- remaining -= xdr_stream_pos(xdr);
- if (remaining < xdr_align_size(args->len))
- return 0;
- args->first.iov_base = xdr->p;
- args->first.iov_len = head->iov_len - xdr_stream_pos(xdr);
+ return false;
+ if (!xdr_stream_subsegment(xdr, &args->payload, args->len))
+ return false;
- return 1;
+ return true;
}
-int
-nfssvc_decode_createargs(struct svc_rqst *rqstp, __be32 *p)
+bool
+nfssvc_decode_createargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
{
- struct xdr_stream *xdr = &rqstp->rq_arg_stream;
struct nfsd_createargs *args = rqstp->rq_argp;
return svcxdr_decode_diropargs(xdr, &args->fh,
@@ -367,10 +354,9 @@ nfssvc_decode_createargs(struct svc_rqst *rqstp, __be32 *p)
svcxdr_decode_sattr(rqstp, xdr, &args->attrs);
}
-int
-nfssvc_decode_renameargs(struct svc_rqst *rqstp, __be32 *p)
+bool
+nfssvc_decode_renameargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
{
- struct xdr_stream *xdr = &rqstp->rq_arg_stream;
struct nfsd_renameargs *args = rqstp->rq_argp;
return svcxdr_decode_diropargs(xdr, &args->ffh,
@@ -379,10 +365,9 @@ nfssvc_decode_renameargs(struct svc_rqst *rqstp, __be32 *p)
&args->tname, &args->tlen);
}
-int
-nfssvc_decode_linkargs(struct svc_rqst *rqstp, __be32 *p)
+bool
+nfssvc_decode_linkargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
{
- struct xdr_stream *xdr = &rqstp->rq_arg_stream;
struct nfsd_linkargs *args = rqstp->rq_argp;
return svcxdr_decode_fhandle(xdr, &args->ffh) &&
@@ -390,178 +375,170 @@ nfssvc_decode_linkargs(struct svc_rqst *rqstp, __be32 *p)
&args->tname, &args->tlen);
}
-int
-nfssvc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p)
+bool
+nfssvc_decode_symlinkargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
{
- struct xdr_stream *xdr = &rqstp->rq_arg_stream;
struct nfsd_symlinkargs *args = rqstp->rq_argp;
struct kvec *head = rqstp->rq_arg.head;
if (!svcxdr_decode_diropargs(xdr, &args->ffh, &args->fname, &args->flen))
- return 0;
+ return false;
if (xdr_stream_decode_u32(xdr, &args->tlen) < 0)
- return 0;
+ return false;
if (args->tlen == 0)
- return 0;
+ return false;
args->first.iov_len = head->iov_len - xdr_stream_pos(xdr);
args->first.iov_base = xdr_inline_decode(xdr, args->tlen);
if (!args->first.iov_base)
- return 0;
+ return false;
return svcxdr_decode_sattr(rqstp, xdr, &args->attrs);
}
-int
-nfssvc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p)
+bool
+nfssvc_decode_readdirargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
{
- struct xdr_stream *xdr = &rqstp->rq_arg_stream;
struct nfsd_readdirargs *args = rqstp->rq_argp;
if (!svcxdr_decode_fhandle(xdr, &args->fh))
- return 0;
+ return false;
if (xdr_stream_decode_u32(xdr, &args->cookie) < 0)
- return 0;
+ return false;
if (xdr_stream_decode_u32(xdr, &args->count) < 0)
- return 0;
+ return false;
- return 1;
+ return true;
}
/*
* XDR encode functions
*/
-int
-nfssvc_encode_statres(struct svc_rqst *rqstp, __be32 *p)
+bool
+nfssvc_encode_statres(struct svc_rqst *rqstp, struct xdr_stream *xdr)
{
- struct xdr_stream *xdr = &rqstp->rq_res_stream;
struct nfsd_stat *resp = rqstp->rq_resp;
return svcxdr_encode_stat(xdr, resp->status);
}
-int
-nfssvc_encode_attrstatres(struct svc_rqst *rqstp, __be32 *p)
+bool
+nfssvc_encode_attrstatres(struct svc_rqst *rqstp, struct xdr_stream *xdr)
{
- struct xdr_stream *xdr = &rqstp->rq_res_stream;
struct nfsd_attrstat *resp = rqstp->rq_resp;
if (!svcxdr_encode_stat(xdr, resp->status))
- return 0;
+ return false;
switch (resp->status) {
case nfs_ok:
if (!svcxdr_encode_fattr(rqstp, xdr, &resp->fh, &resp->stat))
- return 0;
+ return false;
break;
}
- return 1;
+ return true;
}
-int
-nfssvc_encode_diropres(struct svc_rqst *rqstp, __be32 *p)
+bool
+nfssvc_encode_diropres(struct svc_rqst *rqstp, struct xdr_stream *xdr)
{
- struct xdr_stream *xdr = &rqstp->rq_res_stream;
struct nfsd_diropres *resp = rqstp->rq_resp;
if (!svcxdr_encode_stat(xdr, resp->status))
- return 0;
+ return false;
switch (resp->status) {
case nfs_ok:
if (!svcxdr_encode_fhandle(xdr, &resp->fh))
- return 0;
+ return false;
if (!svcxdr_encode_fattr(rqstp, xdr, &resp->fh, &resp->stat))
- return 0;
+ return false;
break;
}
- return 1;
+ return true;
}
-int
-nfssvc_encode_readlinkres(struct svc_rqst *rqstp, __be32 *p)
+bool
+nfssvc_encode_readlinkres(struct svc_rqst *rqstp, struct xdr_stream *xdr)
{
- struct xdr_stream *xdr = &rqstp->rq_res_stream;
struct nfsd_readlinkres *resp = rqstp->rq_resp;
struct kvec *head = rqstp->rq_res.head;
if (!svcxdr_encode_stat(xdr, resp->status))
- return 0;
+ return false;
switch (resp->status) {
case nfs_ok:
if (xdr_stream_encode_u32(xdr, resp->len) < 0)
- return 0;
+ return false;
xdr_write_pages(xdr, &resp->page, 0, resp->len);
if (svc_encode_result_payload(rqstp, head->iov_len, resp->len) < 0)
- return 0;
+ return false;
break;
}
- return 1;
+ return true;
}
-int
-nfssvc_encode_readres(struct svc_rqst *rqstp, __be32 *p)
+bool
+nfssvc_encode_readres(struct svc_rqst *rqstp, struct xdr_stream *xdr)
{
- struct xdr_stream *xdr = &rqstp->rq_res_stream;
struct nfsd_readres *resp = rqstp->rq_resp;
struct kvec *head = rqstp->rq_res.head;
if (!svcxdr_encode_stat(xdr, resp->status))
- return 0;
+ return false;
switch (resp->status) {
case nfs_ok:
if (!svcxdr_encode_fattr(rqstp, xdr, &resp->fh, &resp->stat))
- return 0;
+ return false;
if (xdr_stream_encode_u32(xdr, resp->count) < 0)
- return 0;
+ return false;
xdr_write_pages(xdr, resp->pages, rqstp->rq_res.page_base,
resp->count);
if (svc_encode_result_payload(rqstp, head->iov_len, resp->count) < 0)
- return 0;
+ return false;
break;
}
- return 1;
+ return true;
}
-int
-nfssvc_encode_readdirres(struct svc_rqst *rqstp, __be32 *p)
+bool
+nfssvc_encode_readdirres(struct svc_rqst *rqstp, struct xdr_stream *xdr)
{
- struct xdr_stream *xdr = &rqstp->rq_res_stream;
struct nfsd_readdirres *resp = rqstp->rq_resp;
struct xdr_buf *dirlist = &resp->dirlist;
if (!svcxdr_encode_stat(xdr, resp->status))
- return 0;
+ return false;
switch (resp->status) {
case nfs_ok:
xdr_write_pages(xdr, dirlist->pages, 0, dirlist->len);
/* no more entries */
if (xdr_stream_encode_item_absent(xdr) < 0)
- return 0;
+ return false;
if (xdr_stream_encode_bool(xdr, resp->common.err == nfserr_eof) < 0)
- return 0;
+ return false;
break;
}
- return 1;
+ return true;
}
-int
-nfssvc_encode_statfsres(struct svc_rqst *rqstp, __be32 *p)
+bool
+nfssvc_encode_statfsres(struct svc_rqst *rqstp, struct xdr_stream *xdr)
{
- struct xdr_stream *xdr = &rqstp->rq_res_stream;
struct nfsd_statfsres *resp = rqstp->rq_resp;
struct kstatfs *stat = &resp->stats;
+ __be32 *p;
if (!svcxdr_encode_stat(xdr, resp->status))
- return 0;
+ return false;
switch (resp->status) {
case nfs_ok:
p = xdr_reserve_space(xdr, XDR_UNIT * 5);
if (!p)
- return 0;
+ return false;
*p++ = cpu_to_be32(NFSSVC_MAXBLKSIZE_V2);
*p++ = cpu_to_be32(stat->f_bsize);
*p++ = cpu_to_be32(stat->f_blocks);
@@ -570,7 +547,7 @@ nfssvc_encode_statfsres(struct svc_rqst *rqstp, __be32 *p)
break;
}
- return 1;
+ return true;
}
/**
generated by cgit (git 2.34.1) at 2024-07-10 08:02:53 +0000