nfs2xdr.c
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上传日期:2013-04-10
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文件大小:18k
- /*
- * linux/fs/nfs/nfs2xdr.c
- *
- * XDR functions to encode/decode NFS RPC arguments and results.
- *
- * Copyright (C) 1992, 1993, 1994 Rick Sladkey
- * Copyright (C) 1996 Olaf Kirch
- * 04 Aug 1998 Ion Badulescu <ionut@cs.columbia.edu>
- * FIFO's need special handling in NFSv2
- */
- #include <linux/param.h>
- #include <linux/sched.h>
- #include <linux/mm.h>
- #include <linux/slab.h>
- #include <linux/utsname.h>
- #include <linux/errno.h>
- #include <linux/string.h>
- #include <linux/in.h>
- #include <linux/pagemap.h>
- #include <linux/proc_fs.h>
- #include <linux/sunrpc/clnt.h>
- #include <linux/nfs.h>
- #include <linux/nfs2.h>
- #include <linux/nfs_fs.h>
- #define NFSDBG_FACILITY NFSDBG_XDR
- /* #define NFS_PARANOIA 1 */
- extern int nfs_stat_to_errno(int stat);
- /* Mapping from NFS error code to "errno" error code. */
- #define errno_NFSERR_IO EIO
- /*
- * Declare the space requirements for NFS arguments and replies as
- * number of 32bit-words
- */
- #define NFS_fhandle_sz 8
- #define NFS_sattr_sz 8
- #define NFS_filename_sz 1+(NFS2_MAXNAMLEN>>2)
- #define NFS_path_sz 1+(NFS2_MAXPATHLEN>>2)
- #define NFS_fattr_sz 17
- #define NFS_info_sz 5
- #define NFS_entry_sz NFS_filename_sz+3
- #define NFS_enc_void_sz 0
- #define NFS_diropargs_sz NFS_fhandle_sz+NFS_filename_sz
- #define NFS_sattrargs_sz NFS_fhandle_sz+NFS_sattr_sz
- #define NFS_readlinkargs_sz NFS_fhandle_sz
- #define NFS_readargs_sz NFS_fhandle_sz+3
- #define NFS_writeargs_sz NFS_fhandle_sz+4
- #define NFS_createargs_sz NFS_diropargs_sz+NFS_sattr_sz
- #define NFS_renameargs_sz NFS_diropargs_sz+NFS_diropargs_sz
- #define NFS_linkargs_sz NFS_fhandle_sz+NFS_diropargs_sz
- #define NFS_symlinkargs_sz NFS_diropargs_sz+NFS_path_sz+NFS_sattr_sz
- #define NFS_readdirargs_sz NFS_fhandle_sz+2
- #define NFS_dec_void_sz 0
- #define NFS_attrstat_sz 1+NFS_fattr_sz
- #define NFS_diropres_sz 1+NFS_fhandle_sz+NFS_fattr_sz
- #define NFS_readlinkres_sz 1
- #define NFS_readres_sz 1+NFS_fattr_sz+1
- #define NFS_writeres_sz NFS_attrstat_sz
- #define NFS_stat_sz 1
- #define NFS_readdirres_sz 1
- #define NFS_statfsres_sz 1+NFS_info_sz
- /*
- * Common NFS XDR functions as inlines
- */
- static inline u32 *
- xdr_encode_fhandle(u32 *p, struct nfs_fh *fhandle)
- {
- memcpy(p, fhandle->data, NFS2_FHSIZE);
- return p + XDR_QUADLEN(NFS2_FHSIZE);
- }
- static inline u32 *
- xdr_decode_fhandle(u32 *p, struct nfs_fh *fhandle)
- {
- /* Zero handle first to allow comparisons */
- memset(fhandle, 0, sizeof(*fhandle));
- /* NFSv2 handles have a fixed length */
- fhandle->size = NFS2_FHSIZE;
- memcpy(fhandle->data, p, NFS2_FHSIZE);
- return p + XDR_QUADLEN(NFS2_FHSIZE);
- }
- static inline u32*
- xdr_decode_time(u32 *p, u64 *timep)
- {
- u64 tmp = (u64)ntohl(*p++) << 32;
- *timep = tmp + (u64)ntohl(*p++);
- return p;
- }
- static u32 *
- xdr_decode_fattr(u32 *p, struct nfs_fattr *fattr)
- {
- fattr->type = (enum nfs_ftype) ntohl(*p++);
- fattr->mode = ntohl(*p++);
- fattr->nlink = ntohl(*p++);
- fattr->uid = ntohl(*p++);
- fattr->gid = ntohl(*p++);
- fattr->size = ntohl(*p++);
- fattr->du.nfs2.blocksize = ntohl(*p++);
- fattr->rdev = ntohl(*p++);
- fattr->du.nfs2.blocks = ntohl(*p++);
- fattr->fsid = ntohl(*p++);
- fattr->fileid = ntohl(*p++);
- p = xdr_decode_time(p, &fattr->atime);
- p = xdr_decode_time(p, &fattr->mtime);
- p = xdr_decode_time(p, &fattr->ctime);
- fattr->valid |= NFS_ATTR_FATTR;
- if (fattr->type == NFCHR && fattr->rdev == NFS2_FIFO_DEV) {
- fattr->type = NFFIFO;
- fattr->mode = (fattr->mode & ~S_IFMT) | S_IFIFO;
- fattr->rdev = 0;
- }
- return p;
- }
- #define SATTR(p, attr, flag, field)
- *p++ = (attr->ia_valid & flag) ? htonl(attr->field) : ~(u32) 0
- static inline u32 *
- xdr_encode_sattr(u32 *p, struct iattr *attr)
- {
- SATTR(p, attr, ATTR_MODE, ia_mode);
- SATTR(p, attr, ATTR_UID, ia_uid);
- SATTR(p, attr, ATTR_GID, ia_gid);
- SATTR(p, attr, ATTR_SIZE, ia_size);
- if (attr->ia_valid & (ATTR_ATIME|ATTR_ATIME_SET)) {
- *p++ = htonl(attr->ia_atime);
- *p++ = 0;
- } else {
- *p++ = ~(u32) 0;
- *p++ = ~(u32) 0;
- }
- if (attr->ia_valid & (ATTR_MTIME|ATTR_MTIME_SET)) {
- *p++ = htonl(attr->ia_mtime);
- *p++ = 0;
- } else {
- *p++ = ~(u32) 0;
- *p++ = ~(u32) 0;
- }
- return p;
- }
- #undef SATTR
- /*
- * NFS encode functions
- */
- /*
- * Encode void argument
- */
- static int
- nfs_xdr_enc_void(struct rpc_rqst *req, u32 *p, void *dummy)
- {
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- return 0;
- }
- /*
- * Encode file handle argument
- * GETATTR, READLINK, STATFS
- */
- static int
- nfs_xdr_fhandle(struct rpc_rqst *req, u32 *p, struct nfs_fh *fh)
- {
- p = xdr_encode_fhandle(p, fh);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- return 0;
- }
- /*
- * Encode SETATTR arguments
- */
- static int
- nfs_xdr_sattrargs(struct rpc_rqst *req, u32 *p, struct nfs_sattrargs *args)
- {
- p = xdr_encode_fhandle(p, args->fh);
- p = xdr_encode_sattr(p, args->sattr);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- return 0;
- }
- /*
- * Encode directory ops argument
- * LOOKUP, REMOVE, RMDIR
- */
- static int
- nfs_xdr_diropargs(struct rpc_rqst *req, u32 *p, struct nfs_diropargs *args)
- {
- p = xdr_encode_fhandle(p, args->fh);
- p = xdr_encode_array(p, args->name, args->len);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- return 0;
- }
- /*
- * Arguments to a READ call. Since we read data directly into the page
- * cache, we also set up the reply iovec here so that iov[1] points
- * exactly to the page we want to fetch.
- */
- static int
- nfs_xdr_readargs(struct rpc_rqst *req, u32 *p, struct nfs_readargs *args)
- {
- struct rpc_auth *auth = req->rq_task->tk_auth;
- unsigned int replen;
- u32 offset = (u32)args->offset;
- u32 count = args->count;
- p = xdr_encode_fhandle(p, args->fh);
- *p++ = htonl(offset);
- *p++ = htonl(count);
- *p++ = htonl(count);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- /* Inline the page array */
- replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS_readres_sz) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen,
- args->pages, args->pgbase, count);
- return 0;
- }
- /*
- * Decode READ reply
- */
- static int
- nfs_xdr_readres(struct rpc_rqst *req, u32 *p, struct nfs_readres *res)
- {
- struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
- struct iovec *iov = req->rq_rvec;
- int status, count, recvd, hdrlen;
- if ((status = ntohl(*p++)))
- return -nfs_stat_to_errno(status);
- p = xdr_decode_fattr(p, res->fattr);
- count = ntohl(*p++);
- res->eof = 0;
- if (rcvbuf->page_len) {
- u32 end = page_offset(rcvbuf->pages[0]) + rcvbuf->page_base + count;
- if (end >= res->fattr->size)
- res->eof = 1;
- }
- hdrlen = (u8 *) p - (u8 *) iov->iov_base;
- if (iov->iov_len < hdrlen) {
- printk(KERN_WARNING "NFS: READ reply header overflowed:"
- "length %d > %Zun", hdrlen, iov->iov_len);
- return -errno_NFSERR_IO;
- } else if (iov->iov_len != hdrlen) {
- dprintk("NFS: READ header is short. iovec will be shifted.n");
- xdr_shift_buf(&req->rq_rcv_buf, iov->iov_len - hdrlen);
- }
- recvd = req->rq_received - hdrlen;
- if (count > recvd) {
- printk(KERN_WARNING "NFS: server cheating in read reply: "
- "count %d > recvd %dn", count, recvd);
- count = recvd;
- res->eof = 0;
- }
- dprintk("RPC: readres OK count %dn", count);
- if (count < res->count)
- res->count = count;
- return count;
- }
- /*
- * Write arguments. Splice the buffer to be written into the iovec.
- */
- static int
- nfs_xdr_writeargs(struct rpc_rqst *req, u32 *p, struct nfs_writeargs *args)
- {
- struct xdr_buf *sndbuf = &req->rq_snd_buf;
- u32 offset = (u32)args->offset;
- u32 count = args->count;
- p = xdr_encode_fhandle(p, args->fh);
- *p++ = htonl(offset);
- *p++ = htonl(offset);
- *p++ = htonl(count);
- *p++ = htonl(count);
- sndbuf->len = xdr_adjust_iovec(sndbuf->head, p);
- /* Copy the page array */
- xdr_encode_pages(sndbuf, args->pages, args->pgbase, count);
- return 0;
- }
- /*
- * Encode create arguments
- * CREATE, MKDIR
- */
- static int
- nfs_xdr_createargs(struct rpc_rqst *req, u32 *p, struct nfs_createargs *args)
- {
- p = xdr_encode_fhandle(p, args->fh);
- p = xdr_encode_array(p, args->name, args->len);
- p = xdr_encode_sattr(p, args->sattr);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- return 0;
- }
- /*
- * Encode RENAME arguments
- */
- static int
- nfs_xdr_renameargs(struct rpc_rqst *req, u32 *p, struct nfs_renameargs *args)
- {
- p = xdr_encode_fhandle(p, args->fromfh);
- p = xdr_encode_array(p, args->fromname, args->fromlen);
- p = xdr_encode_fhandle(p, args->tofh);
- p = xdr_encode_array(p, args->toname, args->tolen);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- return 0;
- }
- /*
- * Encode LINK arguments
- */
- static int
- nfs_xdr_linkargs(struct rpc_rqst *req, u32 *p, struct nfs_linkargs *args)
- {
- p = xdr_encode_fhandle(p, args->fromfh);
- p = xdr_encode_fhandle(p, args->tofh);
- p = xdr_encode_array(p, args->toname, args->tolen);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- return 0;
- }
- /*
- * Encode SYMLINK arguments
- */
- static int
- nfs_xdr_symlinkargs(struct rpc_rqst *req, u32 *p, struct nfs_symlinkargs *args)
- {
- p = xdr_encode_fhandle(p, args->fromfh);
- p = xdr_encode_array(p, args->fromname, args->fromlen);
- p = xdr_encode_array(p, args->topath, args->tolen);
- p = xdr_encode_sattr(p, args->sattr);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- return 0;
- }
- /*
- * Encode arguments to readdir call
- */
- static int
- nfs_xdr_readdirargs(struct rpc_rqst *req, u32 *p, struct nfs_readdirargs *args)
- {
- struct rpc_task *task = req->rq_task;
- struct rpc_auth *auth = task->tk_auth;
- unsigned int replen;
- u32 count = args->count;
- /*
- * Some servers (e.g. HP OS 9.5) seem to expect the buffer size
- * to be in longwords ... check whether to convert the size.
- */
- if (task->tk_client->cl_flags & NFS_CLNTF_BUFSIZE)
- count = count >> 2;
- p = xdr_encode_fhandle(p, args->fh);
- *p++ = htonl(args->cookie);
- *p++ = htonl(count); /* see above */
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- /* Inline the page array */
- replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS_readdirres_sz) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 0, count);
- return 0;
- }
- /*
- * Decode the result of a readdir call.
- * We're not really decoding anymore, we just leave the buffer untouched
- * and only check that it is syntactically correct.
- * The real decoding happens in nfs_decode_entry below, called directly
- * from nfs_readdir for each entry.
- */
- static int
- nfs_xdr_readdirres(struct rpc_rqst *req, u32 *p, void *dummy)
- {
- struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
- struct iovec *iov = rcvbuf->head;
- struct page **page;
- int hdrlen, recvd;
- int status, nr;
- unsigned int len, pglen;
- u32 *end, *entry;
- if ((status = ntohl(*p++)))
- return -nfs_stat_to_errno(status);
- hdrlen = (u8 *) p - (u8 *) iov->iov_base;
- if (iov->iov_len < hdrlen) {
- printk(KERN_WARNING "NFS: READDIR reply header overflowed:"
- "length %d > %Zun", hdrlen, iov->iov_len);
- return -errno_NFSERR_IO;
- } else if (iov->iov_len != hdrlen) {
- dprintk("NFS: READDIR header is short. iovec will be shifted.n");
- xdr_shift_buf(rcvbuf, iov->iov_len - hdrlen);
- }
- pglen = rcvbuf->page_len;
- recvd = req->rq_received - hdrlen;
- if (pglen > recvd)
- pglen = recvd;
- page = rcvbuf->pages;
- p = kmap(*page);
- entry = p;
- end = (u32 *)((char *)p + pglen);
- for (nr = 0; *p++; nr++) {
- if (p + 2 > end)
- goto short_pkt;
- p++; /* fileid */
- len = ntohl(*p++);
- p += XDR_QUADLEN(len) + 1; /* name plus cookie */
- if (len > NFS2_MAXNAMLEN) {
- printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)!n",
- len);
- goto err_unmap;
- }
- if (p + 2 > end)
- goto short_pkt;
- entry = p;
- }
- if (!nr && (entry[0] != 0 || entry[1] == 0))
- goto short_pkt;
- out:
- kunmap(*page);
- return nr;
- short_pkt:
- entry[0] = entry[1] = 0;
- /* truncate listing ? */
- if (!nr) {
- printk(KERN_NOTICE "NFS: readdir reply truncated!n");
- entry[1] = 1;
- }
- goto out;
- err_unmap:
- kunmap(*page);
- return -errno_NFSERR_IO;
- }
- u32 *
- nfs_decode_dirent(u32 *p, struct nfs_entry *entry, int plus)
- {
- if (!*p++) {
- if (!*p)
- return ERR_PTR(-EAGAIN);
- entry->eof = 1;
- return ERR_PTR(-EBADCOOKIE);
- }
- entry->ino = ntohl(*p++);
- entry->len = ntohl(*p++);
- entry->name = (const char *) p;
- p += XDR_QUADLEN(entry->len);
- entry->prev_cookie = entry->cookie;
- entry->cookie = ntohl(*p++);
- entry->eof = !p[0] && p[1];
- return p;
- }
- /*
- * NFS XDR decode functions
- */
- /*
- * Decode void reply
- */
- static int
- nfs_xdr_dec_void(struct rpc_rqst *req, u32 *p, void *dummy)
- {
- return 0;
- }
- /*
- * Decode simple status reply
- */
- static int
- nfs_xdr_stat(struct rpc_rqst *req, u32 *p, void *dummy)
- {
- int status;
- if ((status = ntohl(*p++)) != 0)
- status = -nfs_stat_to_errno(status);
- return status;
- }
- /*
- * Decode attrstat reply
- * GETATTR, SETATTR, WRITE
- */
- static int
- nfs_xdr_attrstat(struct rpc_rqst *req, u32 *p, struct nfs_fattr *fattr)
- {
- int status;
- if ((status = ntohl(*p++)))
- return -nfs_stat_to_errno(status);
- xdr_decode_fattr(p, fattr);
- return 0;
- }
- /*
- * Decode diropres reply
- * LOOKUP, CREATE, MKDIR
- */
- static int
- nfs_xdr_diropres(struct rpc_rqst *req, u32 *p, struct nfs_diropok *res)
- {
- int status;
- if ((status = ntohl(*p++)))
- return -nfs_stat_to_errno(status);
- p = xdr_decode_fhandle(p, res->fh);
- xdr_decode_fattr(p, res->fattr);
- return 0;
- }
- /*
- * Encode READLINK args
- */
- static int
- nfs_xdr_readlinkargs(struct rpc_rqst *req, u32 *p, struct nfs_readlinkargs *args)
- {
- struct rpc_auth *auth = req->rq_task->tk_auth;
- unsigned int replen;
- u32 count = args->count - 4;
- p = xdr_encode_fhandle(p, args->fh);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- /* Inline the page array */
- replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS_readlinkres_sz) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 0, count);
- return 0;
- }
- /*
- * Decode READLINK reply
- */
- static int
- nfs_xdr_readlinkres(struct rpc_rqst *req, u32 *p, void *dummy)
- {
- struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
- struct iovec *iov = rcvbuf->head;
- unsigned int hdrlen;
- u32 *strlen, len;
- char *string;
- int status;
- if ((status = ntohl(*p++)))
- return -nfs_stat_to_errno(status);
- hdrlen = (u8 *) p - (u8 *) iov->iov_base;
- if (iov->iov_len > hdrlen) {
- dprintk("NFS: READLINK header is short. iovec will be shifted.n");
- xdr_shift_buf(rcvbuf, iov->iov_len - hdrlen);
- }
- strlen = (u32*)kmap(rcvbuf->pages[0]);
- /* Convert length of symlink */
- len = ntohl(*strlen);
- if (len > rcvbuf->page_len)
- len = rcvbuf->page_len;
- *strlen = len;
- /* NULL terminate the string we got */
- string = (char *)(strlen + 1);
- string[len] = 0;
- kunmap(rcvbuf->pages[0]);
- return 0;
- }
- /*
- * Decode WRITE reply
- */
- static int
- nfs_xdr_writeres(struct rpc_rqst *req, u32 *p, struct nfs_writeres *res)
- {
- res->verf->committed = NFS_FILE_SYNC;
- return nfs_xdr_attrstat(req, p, res->fattr);
- }
- /*
- * Decode STATFS reply
- */
- static int
- nfs_xdr_statfsres(struct rpc_rqst *req, u32 *p, struct nfs_fsinfo *res)
- {
- int status;
- u32 xfer_size;
- if ((status = ntohl(*p++)))
- return -nfs_stat_to_errno(status);
- /* For NFSv2, we more or less have to guess the preferred
- * read/write/readdir sizes from the single 'transfer size'
- * value.
- */
- xfer_size = ntohl(*p++); /* tsize */
- res->rtmax = 8 * 1024;
- res->rtpref = xfer_size;
- res->rtmult = xfer_size;
- res->wtmax = 8 * 1024;
- res->wtpref = xfer_size;
- res->wtmult = xfer_size;
- res->dtpref = PAGE_CACHE_SIZE;
- res->maxfilesize = 0x7FFFFFFF; /* just a guess */
- res->bsize = ntohl(*p++);
- res->tbytes = ntohl(*p++) * res->bsize;
- res->fbytes = ntohl(*p++) * res->bsize;
- res->abytes = ntohl(*p++) * res->bsize;
- res->tfiles = 0;
- res->ffiles = 0;
- res->afiles = 0;
- res->namelen = 0;
- return 0;
- }
- /*
- * We need to translate between nfs status return values and
- * the local errno values which may not be the same.
- */
- static struct {
- int stat;
- int errno;
- } nfs_errtbl[] = {
- { NFS_OK, 0 },
- { NFSERR_PERM, EPERM },
- { NFSERR_NOENT, ENOENT },
- { NFSERR_IO, errno_NFSERR_IO },
- { NFSERR_NXIO, ENXIO },
- /* { NFSERR_EAGAIN, EAGAIN }, */
- { NFSERR_ACCES, EACCES },
- { NFSERR_EXIST, EEXIST },
- { NFSERR_XDEV, EXDEV },
- { NFSERR_NODEV, ENODEV },
- { NFSERR_NOTDIR, ENOTDIR },
- { NFSERR_ISDIR, EISDIR },
- { NFSERR_INVAL, EINVAL },
- { NFSERR_FBIG, EFBIG },
- { NFSERR_NOSPC, ENOSPC },
- { NFSERR_ROFS, EROFS },
- { NFSERR_MLINK, EMLINK },
- { NFSERR_NAMETOOLONG, ENAMETOOLONG },
- { NFSERR_NOTEMPTY, ENOTEMPTY },
- { NFSERR_DQUOT, EDQUOT },
- { NFSERR_STALE, ESTALE },
- { NFSERR_REMOTE, EREMOTE },
- #ifdef EWFLUSH
- { NFSERR_WFLUSH, EWFLUSH },
- #endif
- { NFSERR_BADHANDLE, EBADHANDLE },
- { NFSERR_NOT_SYNC, ENOTSYNC },
- { NFSERR_BAD_COOKIE, EBADCOOKIE },
- { NFSERR_NOTSUPP, ENOTSUPP },
- { NFSERR_TOOSMALL, ETOOSMALL },
- { NFSERR_SERVERFAULT, ESERVERFAULT },
- { NFSERR_BADTYPE, EBADTYPE },
- { NFSERR_JUKEBOX, EJUKEBOX },
- { -1, EIO }
- };
- /*
- * Convert an NFS error code to a local one.
- * This one is used jointly by NFSv2 and NFSv3.
- */
- int
- nfs_stat_to_errno(int stat)
- {
- int i;
- for (i = 0; nfs_errtbl[i].stat != -1; i++) {
- if (nfs_errtbl[i].stat == stat)
- return nfs_errtbl[i].errno;
- }
- printk(KERN_ERR "nfs_stat_to_errno: bad nfs status return value: %dn", stat);
- return nfs_errtbl[i].errno;
- }
- #ifndef MAX
- # define MAX(a, b) (((a) > (b))? (a) : (b))
- #endif
- #define PROC(proc, argtype, restype, timer)
- { .p_procname = "nfs_" #proc,
- .p_encode = (kxdrproc_t) nfs_xdr_##argtype,
- .p_decode = (kxdrproc_t) nfs_xdr_##restype,
- .p_bufsiz = MAX(NFS_##argtype##_sz,NFS_##restype##_sz) << 2,
- .p_timer = timer
- }
- static struct rpc_procinfo nfs_procedures[18] = {
- PROC(null, enc_void, dec_void, 0),
- PROC(getattr, fhandle, attrstat, 1),
- PROC(setattr, sattrargs, attrstat, 0),
- PROC(root, enc_void, dec_void, 0),
- PROC(lookup, diropargs, diropres, 2),
- PROC(readlink, readlinkargs, readlinkres, 3),
- PROC(read, readargs, readres, 3),
- PROC(writecache, enc_void, dec_void, 0),
- PROC(write, writeargs, writeres, 4),
- PROC(create, createargs, diropres, 0),
- PROC(remove, diropargs, stat, 0),
- PROC(rename, renameargs, stat, 0),
- PROC(link, linkargs, stat, 0),
- PROC(symlink, symlinkargs, stat, 0),
- PROC(mkdir, createargs, diropres, 0),
- PROC(rmdir, diropargs, stat, 0),
- PROC(readdir, readdirargs, readdirres, 3),
- PROC(statfs, fhandle, statfsres, 0),
- };
- struct rpc_version nfs_version2 = {
- 2,
- sizeof(nfs_procedures)/sizeof(nfs_procedures[0]),
- nfs_procedures
- };