diff options
-rw-r--r-- | fs/nfsd/nfs3xdr.c | 55 | ||||
-rw-r--r-- | fs/nfsd/nfsxdr.c | 39 |
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); } |