forked from luck/tmp_suning_uos_patched
NFS: Remove unused old NFSv3 decoder functions
Clean up. Remove unused legacy result decoder functions, and any now unused decoder helper functions. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Tested-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever
Trond Myklebust
parent
f5fc3c50c9
commit
b2cdd9c9c9
512
fs/nfs/nfs3xdr.c
512
fs/nfs/nfs3xdr.c
@ -129,38 +129,6 @@ static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
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/*
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* Common NFS XDR functions as inlines
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*/
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static inline __be32 *
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xdr_decode_fhandle(__be32 *p, struct nfs_fh *fh)
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{
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if ((fh->size = ntohl(*p++)) <= NFS3_FHSIZE) {
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memcpy(fh->data, p, fh->size);
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return p + XDR_QUADLEN(fh->size);
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}
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return NULL;
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}
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static inline __be32 *
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xdr_decode_fhandle_stream(struct xdr_stream *xdr, struct nfs_fh *fh)
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{
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__be32 *p;
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p = xdr_inline_decode(xdr, 4);
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if (unlikely(!p))
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goto out_overflow;
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fh->size = ntohl(*p++);
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if (fh->size <= NFS3_FHSIZE) {
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p = xdr_inline_decode(xdr, fh->size);
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if (unlikely(!p))
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goto out_overflow;
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memcpy(fh->data, p, fh->size);
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return p + XDR_QUADLEN(fh->size);
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}
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return NULL;
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out_overflow:
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print_overflow_msg(__func__, xdr);
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return ERR_PTR(-EIO);
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}
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/*
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* Encode/decode time.
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@ -221,51 +189,6 @@ xdr_decode_wcc_attr(__be32 *p, struct nfs_fattr *fattr)
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return p;
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}
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static inline __be32 *
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xdr_decode_post_op_attr(__be32 *p, struct nfs_fattr *fattr)
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{
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if (*p++)
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p = xdr_decode_fattr(p, fattr);
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return p;
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}
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static inline __be32 *
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xdr_decode_post_op_attr_stream(struct xdr_stream *xdr, struct nfs_fattr *fattr)
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{
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__be32 *p;
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p = xdr_inline_decode(xdr, 4);
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if (unlikely(!p))
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goto out_overflow;
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if (ntohl(*p++)) {
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p = xdr_inline_decode(xdr, 84);
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if (unlikely(!p))
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goto out_overflow;
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p = xdr_decode_fattr(p, fattr);
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}
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return p;
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out_overflow:
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print_overflow_msg(__func__, xdr);
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return ERR_PTR(-EIO);
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}
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static inline __be32 *
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xdr_decode_pre_op_attr(__be32 *p, struct nfs_fattr *fattr)
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{
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if (*p++)
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return xdr_decode_wcc_attr(p, fattr);
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return p;
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}
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static inline __be32 *
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xdr_decode_wcc_data(__be32 *p, struct nfs_fattr *fattr)
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{
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p = xdr_decode_pre_op_attr(p, fattr);
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return xdr_decode_post_op_attr(p, fattr);
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}
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/*
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* Encode/decode NFSv3 basic data types
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*
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@ -1403,52 +1326,6 @@ static int nfs3_xdr_enc_readdirplus3args(struct rpc_rqst *req, __be32 *p,
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return 0;
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}
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/*
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* Decode the result of a readdir call.
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* We just check for syntactical correctness.
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*/
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static int
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nfs3_xdr_readdirres(struct rpc_rqst *req, __be32 *p, struct nfs3_readdirres *res)
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{
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struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
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struct kvec *iov = rcvbuf->head;
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struct page **page;
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size_t hdrlen;
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u32 recvd, pglen;
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int status;
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status = ntohl(*p++);
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/* Decode post_op_attrs */
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p = xdr_decode_post_op_attr(p, res->dir_attr);
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if (status)
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return nfs_stat_to_errno(status);
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/* Decode verifier cookie */
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if (res->verf) {
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res->verf[0] = *p++;
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res->verf[1] = *p++;
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} else {
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p += 2;
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}
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hdrlen = (u8 *) p - (u8 *) iov->iov_base;
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if (iov->iov_len < hdrlen) {
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dprintk("NFS: READDIR reply header overflowed:"
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"length %Zu > %Zu\n", hdrlen, iov->iov_len);
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return -errno_NFSERR_IO;
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} else if (iov->iov_len != hdrlen) {
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dprintk("NFS: READDIR header is short. iovec will be shifted.\n");
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xdr_shift_buf(rcvbuf, iov->iov_len - hdrlen);
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}
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pglen = rcvbuf->page_len;
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recvd = rcvbuf->len - hdrlen;
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if (pglen > recvd)
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pglen = recvd;
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page = rcvbuf->pages;
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return pglen;
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}
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/*
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* 3.3.21 COMMIT3args
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*
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@ -1526,23 +1403,12 @@ static int nfs3_xdr_enc_setacl3args(struct rpc_rqst *req, __be32 *p,
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#endif /* CONFIG_NFS_V3_ACL */
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/*
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* NFS XDR decode functions
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* NFSv3 XDR decode functions
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*
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* NFSv3 result types are defined in section 3.3 of RFC 1813:
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* "NFS Version 3 Protocol Specification".
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*/
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/*
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* Decode attrstat reply.
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*/
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static int
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nfs3_xdr_attrstat(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr)
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{
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int status;
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if ((status = ntohl(*p++)))
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return nfs_stat_to_errno(status);
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xdr_decode_fattr(p, fattr);
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return 0;
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}
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/*
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* 3.3.1 GETATTR3res
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*
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@ -1577,21 +1443,6 @@ static int nfs3_xdr_dec_getattr3res(struct rpc_rqst *req, __be32 *p,
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return nfs_stat_to_errno(status);
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}
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/*
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* Decode status+wcc_data reply
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* SATTR, REMOVE, RMDIR
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*/
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static int
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nfs3_xdr_wccstat(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr)
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{
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int status;
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if ((status = ntohl(*p++)))
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status = nfs_stat_to_errno(status);
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xdr_decode_wcc_data(p, fattr);
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return status;
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}
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/*
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* 3.3.2 SETATTR3res
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*
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@ -1632,31 +1483,6 @@ static int nfs3_xdr_dec_setattr3res(struct rpc_rqst *req, __be32 *p,
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return nfs_stat_to_errno(status);
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}
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static int
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nfs3_xdr_removeres(struct rpc_rqst *req, __be32 *p, struct nfs_removeres *res)
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{
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return nfs3_xdr_wccstat(req, p, res->dir_attr);
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}
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/*
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* Decode LOOKUP reply
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*/
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static int
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nfs3_xdr_lookupres(struct rpc_rqst *req, __be32 *p, struct nfs3_diropres *res)
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{
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int status;
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if ((status = ntohl(*p++))) {
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status = nfs_stat_to_errno(status);
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} else {
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if (!(p = xdr_decode_fhandle(p, res->fh)))
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return -errno_NFSERR_IO;
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p = xdr_decode_post_op_attr(p, res->fattr);
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}
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xdr_decode_post_op_attr(p, res->dir_attr);
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return status;
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}
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/*
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* 3.3.3 LOOKUP3res
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*
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@ -1706,21 +1532,6 @@ static int nfs3_xdr_dec_lookup3res(struct rpc_rqst *req, __be32 *p,
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return nfs_stat_to_errno(status);
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}
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/*
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* Decode ACCESS reply
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*/
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static int
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nfs3_xdr_accessres(struct rpc_rqst *req, __be32 *p, struct nfs3_accessres *res)
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{
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int status = ntohl(*p++);
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p = xdr_decode_post_op_attr(p, res->fattr);
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if (status)
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return nfs_stat_to_errno(status);
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res->access = ntohl(*p++);
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return 0;
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}
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/*
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* 3.3.4 ACCESS3res
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*
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@ -1763,52 +1574,6 @@ static int nfs3_xdr_dec_access3res(struct rpc_rqst *req, __be32 *p,
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return nfs_stat_to_errno(status);
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}
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/*
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* Decode READLINK reply
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*/
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static int
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nfs3_xdr_readlinkres(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr)
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{
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struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
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struct kvec *iov = rcvbuf->head;
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size_t hdrlen;
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u32 len, recvd;
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int status;
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status = ntohl(*p++);
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p = xdr_decode_post_op_attr(p, fattr);
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if (status != 0)
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return nfs_stat_to_errno(status);
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/* Convert length of symlink */
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len = ntohl(*p++);
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if (len >= rcvbuf->page_len) {
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dprintk("nfs: server returned giant symlink!\n");
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return -ENAMETOOLONG;
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}
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hdrlen = (u8 *) p - (u8 *) iov->iov_base;
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if (iov->iov_len < hdrlen) {
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dprintk("NFS: READLINK reply header overflowed:"
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"length %Zu > %Zu\n", hdrlen, iov->iov_len);
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return -errno_NFSERR_IO;
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} else if (iov->iov_len != hdrlen) {
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dprintk("NFS: READLINK header is short. "
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"iovec will be shifted.\n");
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xdr_shift_buf(rcvbuf, iov->iov_len - hdrlen);
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}
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recvd = req->rq_rcv_buf.len - hdrlen;
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if (recvd < len) {
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dprintk("NFS: server cheating in readlink reply: "
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"count %u > recvd %u\n", len, recvd);
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return -EIO;
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}
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xdr_terminate_string(rcvbuf, len);
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return 0;
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}
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/*
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* 3.3.5 READLINK3res
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*
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@ -1851,59 +1616,6 @@ static int nfs3_xdr_dec_readlink3res(struct rpc_rqst *req, __be32 *p,
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return nfs_stat_to_errno(status);
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}
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/*
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* Decode READ reply
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*/
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static int
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nfs3_xdr_readres(struct rpc_rqst *req, __be32 *p, struct nfs_readres *res)
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{
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struct kvec *iov = req->rq_rcv_buf.head;
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size_t hdrlen;
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u32 count, ocount, recvd;
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int status;
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status = ntohl(*p++);
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p = xdr_decode_post_op_attr(p, res->fattr);
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if (status != 0)
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return nfs_stat_to_errno(status);
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/* Decode reply count and EOF flag. NFSv3 is somewhat redundant
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* in that it puts the count both in the res struct and in the
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* opaque data count. */
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count = ntohl(*p++);
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res->eof = ntohl(*p++);
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ocount = ntohl(*p++);
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if (ocount != count) {
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dprintk("NFS: READ count doesn't match RPC opaque count.\n");
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return -errno_NFSERR_IO;
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}
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hdrlen = (u8 *) p - (u8 *) iov->iov_base;
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if (iov->iov_len < hdrlen) {
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dprintk("NFS: READ reply header overflowed:"
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"length %Zu > %Zu\n", hdrlen, iov->iov_len);
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return -errno_NFSERR_IO;
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} else if (iov->iov_len != hdrlen) {
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dprintk("NFS: READ header is short. iovec will be shifted.\n");
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xdr_shift_buf(&req->rq_rcv_buf, iov->iov_len - hdrlen);
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}
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recvd = req->rq_rcv_buf.len - hdrlen;
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if (count > recvd) {
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dprintk("NFS: server cheating in read reply: "
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"count %u > recvd %u\n", count, recvd);
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count = recvd;
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res->eof = 0;
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}
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if (count < res->count)
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res->count = count;
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return count;
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}
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/*
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* 3.3.6 READ3res
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*
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@ -1988,28 +1700,6 @@ static int nfs3_xdr_dec_read3res(struct rpc_rqst *req, __be32 *p,
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return nfs_stat_to_errno(status);
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}
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/*
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* Decode WRITE response
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*/
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static int
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nfs3_xdr_writeres(struct rpc_rqst *req, __be32 *p, struct nfs_writeres *res)
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{
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int status;
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status = ntohl(*p++);
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p = xdr_decode_wcc_data(p, res->fattr);
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if (status != 0)
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return nfs_stat_to_errno(status);
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res->count = ntohl(*p++);
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res->verf->committed = (enum nfs3_stable_how)ntohl(*p++);
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res->verf->verifier[0] = *p++;
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res->verf->verifier[1] = *p++;
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return res->count;
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}
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/*
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* 3.3.7 WRITE3res
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*
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@ -2082,33 +1772,6 @@ static int nfs3_xdr_dec_write3res(struct rpc_rqst *req, __be32 *p,
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return nfs_stat_to_errno(status);
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}
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/*
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* Decode a CREATE response
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*/
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static int
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nfs3_xdr_createres(struct rpc_rqst *req, __be32 *p, struct nfs3_diropres *res)
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{
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int status;
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status = ntohl(*p++);
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if (status == 0) {
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if (*p++) {
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if (!(p = xdr_decode_fhandle(p, res->fh)))
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return -errno_NFSERR_IO;
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p = xdr_decode_post_op_attr(p, res->fattr);
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} else {
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memset(res->fh, 0, sizeof(*res->fh));
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/* Do decode post_op_attr but set it to NULL */
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p = xdr_decode_post_op_attr(p, res->fattr);
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res->fattr->valid = 0;
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}
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} else {
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status = nfs_stat_to_errno(status);
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}
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p = xdr_decode_wcc_data(p, res->dir_attr);
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return status;
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}
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/*
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* 3.3.8 CREATE3res
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*
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@ -2214,21 +1877,6 @@ static int nfs3_xdr_dec_remove3res(struct rpc_rqst *req, __be32 *p,
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return nfs_stat_to_errno(status);
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}
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/*
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* Decode RENAME reply
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*/
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static int
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nfs3_xdr_renameres(struct rpc_rqst *req, __be32 *p, struct nfs_renameres *res)
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{
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int status;
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if ((status = ntohl(*p++)) != 0)
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status = nfs_stat_to_errno(status);
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p = xdr_decode_wcc_data(p, res->old_fattr);
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p = xdr_decode_wcc_data(p, res->new_fattr);
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return status;
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}
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/*
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* 3.3.14 RENAME3res
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*
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@ -2274,21 +1922,6 @@ static int nfs3_xdr_dec_rename3res(struct rpc_rqst *req, __be32 *p,
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return nfs_stat_to_errno(status);
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}
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/*
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* Decode LINK reply
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*/
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static int
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nfs3_xdr_linkres(struct rpc_rqst *req, __be32 *p, struct nfs3_linkres *res)
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{
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int status;
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if ((status = ntohl(*p++)) != 0)
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status = nfs_stat_to_errno(status);
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p = xdr_decode_post_op_attr(p, res->fattr);
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p = xdr_decode_wcc_data(p, res->dir_attr);
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return status;
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}
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||||
/*
|
||||
* 3.3.15 LINK3res
|
||||
*
|
||||
@ -2532,31 +2165,6 @@ static int nfs3_xdr_dec_readdir3res(struct rpc_rqst *req, __be32 *p,
|
||||
return nfs_stat_to_errno(status);
|
||||
}
|
||||
|
||||
/*
|
||||
* Decode FSSTAT reply
|
||||
*/
|
||||
static int
|
||||
nfs3_xdr_fsstatres(struct rpc_rqst *req, __be32 *p, struct nfs_fsstat *res)
|
||||
{
|
||||
int status;
|
||||
|
||||
status = ntohl(*p++);
|
||||
|
||||
p = xdr_decode_post_op_attr(p, res->fattr);
|
||||
if (status != 0)
|
||||
return nfs_stat_to_errno(status);
|
||||
|
||||
p = xdr_decode_hyper(p, &res->tbytes);
|
||||
p = xdr_decode_hyper(p, &res->fbytes);
|
||||
p = xdr_decode_hyper(p, &res->abytes);
|
||||
p = xdr_decode_hyper(p, &res->tfiles);
|
||||
p = xdr_decode_hyper(p, &res->ffiles);
|
||||
p = xdr_decode_hyper(p, &res->afiles);
|
||||
|
||||
/* ignore invarsec */
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* 3.3.18 FSSTAT3res
|
||||
*
|
||||
@ -2626,35 +2234,6 @@ static int nfs3_xdr_dec_fsstat3res(struct rpc_rqst *req, __be32 *p,
|
||||
return nfs_stat_to_errno(status);
|
||||
}
|
||||
|
||||
/*
|
||||
* Decode FSINFO reply
|
||||
*/
|
||||
static int
|
||||
nfs3_xdr_fsinfores(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *res)
|
||||
{
|
||||
int status;
|
||||
|
||||
status = ntohl(*p++);
|
||||
|
||||
p = xdr_decode_post_op_attr(p, res->fattr);
|
||||
if (status != 0)
|
||||
return nfs_stat_to_errno(status);
|
||||
|
||||
res->rtmax = ntohl(*p++);
|
||||
res->rtpref = ntohl(*p++);
|
||||
res->rtmult = ntohl(*p++);
|
||||
res->wtmax = ntohl(*p++);
|
||||
res->wtpref = ntohl(*p++);
|
||||
res->wtmult = ntohl(*p++);
|
||||
res->dtpref = ntohl(*p++);
|
||||
p = xdr_decode_hyper(p, &res->maxfilesize);
|
||||
p = xdr_decode_time3(p, &res->time_delta);
|
||||
|
||||
/* ignore properties */
|
||||
res->lease_time = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* 3.3.19 FSINFO3res
|
||||
*
|
||||
@ -2732,26 +2311,6 @@ static int nfs3_xdr_dec_fsinfo3res(struct rpc_rqst *req, __be32 *p,
|
||||
return nfs_stat_to_errno(status);
|
||||
}
|
||||
|
||||
/*
|
||||
* Decode PATHCONF reply
|
||||
*/
|
||||
static int
|
||||
nfs3_xdr_pathconfres(struct rpc_rqst *req, __be32 *p, struct nfs_pathconf *res)
|
||||
{
|
||||
int status;
|
||||
|
||||
status = ntohl(*p++);
|
||||
|
||||
p = xdr_decode_post_op_attr(p, res->fattr);
|
||||
if (status != 0)
|
||||
return nfs_stat_to_errno(status);
|
||||
res->max_link = ntohl(*p++);
|
||||
res->max_namelen = ntohl(*p++);
|
||||
|
||||
/* ignore remaining fields */
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* 3.3.20 PATHCONF3res
|
||||
*
|
||||
@ -2816,24 +2375,6 @@ static int nfs3_xdr_dec_pathconf3res(struct rpc_rqst *req, __be32 *p,
|
||||
return nfs_stat_to_errno(status);
|
||||
}
|
||||
|
||||
/*
|
||||
* Decode COMMIT reply
|
||||
*/
|
||||
static int
|
||||
nfs3_xdr_commitres(struct rpc_rqst *req, __be32 *p, struct nfs_writeres *res)
|
||||
{
|
||||
int status;
|
||||
|
||||
status = ntohl(*p++);
|
||||
p = xdr_decode_wcc_data(p, res->fattr);
|
||||
if (status != 0)
|
||||
return nfs_stat_to_errno(status);
|
||||
|
||||
res->verf->verifier[0] = *p++;
|
||||
res->verf->verifier[1] = *p++;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* 3.3.21 COMMIT3res
|
||||
*
|
||||
@ -2877,37 +2418,6 @@ static int nfs3_xdr_dec_commit3res(struct rpc_rqst *req, __be32 *p,
|
||||
}
|
||||
|
||||
#ifdef CONFIG_NFS_V3_ACL
|
||||
/*
|
||||
* Decode GETACL reply
|
||||
*/
|
||||
static int
|
||||
nfs3_xdr_getaclres(struct rpc_rqst *req, __be32 *p,
|
||||
struct nfs3_getaclres *res)
|
||||
{
|
||||
struct xdr_buf *buf = &req->rq_rcv_buf;
|
||||
int status = ntohl(*p++);
|
||||
struct posix_acl **acl;
|
||||
unsigned int *aclcnt;
|
||||
int err, base;
|
||||
|
||||
if (status != 0)
|
||||
return nfs_stat_to_errno(status);
|
||||
p = xdr_decode_post_op_attr(p, res->fattr);
|
||||
res->mask = ntohl(*p++);
|
||||
if (res->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT))
|
||||
return -EINVAL;
|
||||
base = (char *)p - (char *)req->rq_rcv_buf.head->iov_base;
|
||||
|
||||
acl = (res->mask & NFS_ACL) ? &res->acl_access : NULL;
|
||||
aclcnt = (res->mask & NFS_ACLCNT) ? &res->acl_access_count : NULL;
|
||||
err = nfsacl_decode(buf, base, aclcnt, acl);
|
||||
|
||||
acl = (res->mask & NFS_DFACL) ? &res->acl_default : NULL;
|
||||
aclcnt = (res->mask & NFS_DFACLCNT) ? &res->acl_default_count : NULL;
|
||||
if (err > 0)
|
||||
err = nfsacl_decode(buf, base + err, aclcnt, acl);
|
||||
return (err > 0) ? 0 : err;
|
||||
}
|
||||
|
||||
static inline int decode_getacl3resok(struct xdr_stream *xdr,
|
||||
struct nfs3_getaclres *result)
|
||||
@ -2973,20 +2483,6 @@ static int nfs3_xdr_dec_getacl3res(struct rpc_rqst *req, __be32 *p,
|
||||
return nfs_stat_to_errno(status);
|
||||
}
|
||||
|
||||
/*
|
||||
* Decode setacl reply.
|
||||
*/
|
||||
static int
|
||||
nfs3_xdr_setaclres(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr)
|
||||
{
|
||||
int status = ntohl(*p++);
|
||||
|
||||
if (status)
|
||||
return nfs_stat_to_errno(status);
|
||||
xdr_decode_post_op_attr(p, fattr);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int nfs3_xdr_dec_setacl3res(struct rpc_rqst *req, __be32 *p,
|
||||
struct nfs_fattr *result)
|
||||
{
|
||||
|
||||
Loading…
Reference in New Issue
Block a user