Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
new file mode 100644
index 0000000..d91b690
--- /dev/null
+++ b/fs/nfs/nfs2xdr.c
@@ -0,0 +1,711 @@
+/*
+ * 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/time.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_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_attrstat_sz (1+NFS_fattr_sz)
+#define NFS_diropres_sz (1+NFS_fhandle_sz+NFS_fattr_sz)
+#define NFS_readlinkres_sz (2)
+#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)
+{
+ /* 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_encode_time(u32 *p, struct timespec *timep)
+{
+ *p++ = htonl(timep->tv_sec);
+ /* Convert nanoseconds into microseconds */
+ *p++ = htonl(timep->tv_nsec ? timep->tv_nsec / 1000 : 0);
+ return p;
+}
+
+static inline u32*
+xdr_encode_current_server_time(u32 *p, struct timespec *timep)
+{
+ /*
+ * Passing the invalid value useconds=1000000 is a
+ * Sun convention for "set to current server time".
+ * It's needed to make permissions checks for the
+ * "touch" program across v2 mounts to Solaris and
+ * Irix boxes work correctly. See description of
+ * sattr in section 6.1 of "NFS Illustrated" by
+ * Brent Callaghan, Addison-Wesley, ISBN 0-201-32750-5
+ */
+ *p++ = htonl(timep->tv_sec);
+ *p++ = htonl(1000000);
+ return p;
+}
+
+static inline u32*
+xdr_decode_time(u32 *p, struct timespec *timep)
+{
+ timep->tv_sec = ntohl(*p++);
+ /* Convert microseconds into nanoseconds */
+ timep->tv_nsec = ntohl(*p++) * 1000;
+ return p;
+}
+
+static u32 *
+xdr_decode_fattr(u32 *p, struct nfs_fattr *fattr)
+{
+ u32 rdev;
+ 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++);
+ rdev = ntohl(*p++);
+ fattr->du.nfs2.blocks = ntohl(*p++);
+ fattr->fsid_u.nfs3 = 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;
+ fattr->rdev = new_decode_dev(rdev);
+ if (fattr->type == NFCHR && rdev == NFS2_FIFO_DEV) {
+ fattr->type = NFFIFO;
+ fattr->mode = (fattr->mode & ~S_IFMT) | S_IFIFO;
+ fattr->rdev = 0;
+ }
+ fattr->timestamp = jiffies;
+ 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_SET) {
+ p = xdr_encode_time(p, &attr->ia_atime);
+ } else if (attr->ia_valid & ATTR_ATIME) {
+ p = xdr_encode_current_server_time(p, &attr->ia_atime);
+ } else {
+ *p++ = ~(u32) 0;
+ *p++ = ~(u32) 0;
+ }
+
+ if (attr->ia_valid & ATTR_MTIME_SET) {
+ p = xdr_encode_time(p, &attr->ia_mtime);
+ } else if (attr->ia_valid & ATTR_MTIME) {
+ p = xdr_encode_current_server_time(p, &attr->ia_mtime);
+ } else {
+ *p++ = ~(u32) 0;
+ *p++ = ~(u32) 0;
+ }
+ return p;
+}
+#undef SATTR
+
+/*
+ * NFS encode functions
+ */
+/*
+ * 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 kvec *iov = req->rq_rcv_buf.head;
+ 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;
+ hdrlen = (u8 *) p - (u8 *) iov->iov_base;
+ if (iov->iov_len < hdrlen) {
+ printk(KERN_WARNING "NFS: READ reply header overflowed:"
+ "length %d > %Zu\n", 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_rcv_buf.len - hdrlen;
+ if (count > recvd) {
+ printk(KERN_WARNING "NFS: server cheating in read reply: "
+ "count %d > recvd %d\n", count, recvd);
+ count = recvd;
+ }
+
+ dprintk("RPC: readres OK count %d\n", 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;
+
+ 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 kvec *iov = rcvbuf->head;
+ struct page **page;
+ int hdrlen, recvd;
+ int status, nr;
+ unsigned int len, pglen;
+ u32 *end, *entry, *kaddr;
+
+ 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 > %Zu\n", 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 = rcvbuf->len - hdrlen;
+ if (pglen > recvd)
+ pglen = recvd;
+ page = rcvbuf->pages;
+ kaddr = p = (u32 *)kmap_atomic(*page, KM_USER0);
+ end = (u32 *)((char *)p + pglen);
+ entry = p;
+ 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_atomic(kaddr, KM_USER0);
+ 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:
+ nr = -errno_NFSERR_IO;
+ goto out;
+}
+
+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 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;
+
+ 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, args->pgbase, args->pglen);
+ 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 kvec *iov = rcvbuf->head;
+ int hdrlen, len, recvd;
+ char *kaddr;
+ int status;
+
+ if ((status = ntohl(*p++)))
+ return -nfs_stat_to_errno(status);
+ /* Convert length of symlink */
+ len = ntohl(*p++);
+ if (len >= rcvbuf->page_len || len <= 0) {
+ dprintk(KERN_WARNING "nfs: server returned giant symlink!\n");
+ return -ENAMETOOLONG;
+ }
+ hdrlen = (u8 *) p - (u8 *) iov->iov_base;
+ if (iov->iov_len < hdrlen) {
+ printk(KERN_WARNING "NFS: READLINK reply header overflowed:"
+ "length %d > %Zu\n", hdrlen, iov->iov_len);
+ return -errno_NFSERR_IO;
+ } else if (iov->iov_len != hdrlen) {
+ dprintk("NFS: READLINK header is short. iovec will be shifted.\n");
+ xdr_shift_buf(rcvbuf, iov->iov_len - hdrlen);
+ }
+ recvd = req->rq_rcv_buf.len - hdrlen;
+ if (recvd < len) {
+ printk(KERN_WARNING "NFS: server cheating in readlink reply: "
+ "count %u > recvd %u\n", len, recvd);
+ return -EIO;
+ }
+
+ /* NULL terminate the string we got */
+ kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0);
+ kaddr[len+rcvbuf->page_base] = '\0';
+ kunmap_atomic(kaddr, KM_USER0);
+ 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 nfs2_fsstat *res)
+{
+ int status;
+
+ if ((status = ntohl(*p++)))
+ return -nfs_stat_to_errno(status);
+
+ res->tsize = ntohl(*p++);
+ res->bsize = ntohl(*p++);
+ res->blocks = ntohl(*p++);
+ res->bfree = ntohl(*p++);
+ res->bavail = ntohl(*p++);
+ 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: %d\n", stat);
+ return nfs_errtbl[i].errno;
+}
+
+#ifndef MAX
+# define MAX(a, b) (((a) > (b))? (a) : (b))
+#endif
+
+#define PROC(proc, argtype, restype, timer) \
+[NFSPROC_##proc] = { \
+ .p_proc = NFSPROC_##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 \
+ }
+struct rpc_procinfo nfs_procedures[] = {
+ PROC(GETATTR, fhandle, attrstat, 1),
+ PROC(SETATTR, sattrargs, attrstat, 0),
+ PROC(LOOKUP, diropargs, diropres, 2),
+ PROC(READLINK, readlinkargs, readlinkres, 3),
+ PROC(READ, readargs, readres, 3),
+ 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 = {
+ .number = 2,
+ .nrprocs = sizeof(nfs_procedures)/sizeof(nfs_procedures[0]),
+ .procs = nfs_procedures
+};