#include <linux/namei.h>
#include <linux/mount.h>
#include <linux/sched.h>
- #include <linux/vmalloc.h>
#include <linux/kmemleak.h>
+#include <linux/xattr.h>
#include "delegation.h"
#include "iostat.h"
.permission = nfs_permission,
.getattr = nfs_getattr,
.setattr = nfs_setattr,
- .getxattr = nfs4_getxattr,
- .setxattr = nfs4_setxattr,
- .listxattr = nfs4_listxattr,
+ .getxattr = generic_getxattr,
+ .setxattr = generic_setxattr,
+ .listxattr = generic_listxattr,
+ .removexattr = generic_removexattr,
};
#endif /* CONFIG_NFS_V4 */
struct nfs_cache_array_entry array[0];
};
-typedef __be32 * (*decode_dirent_t)(struct xdr_stream *, struct nfs_entry *, struct nfs_server *, int);
+typedef int (*decode_dirent_t)(struct xdr_stream *, struct nfs_entry *, int);
typedef struct {
struct file *file;
struct page *page;
return error;
}
-/* Fill in an entry based on the xdr code stored in desc->page */
-static
-int xdr_decode(nfs_readdir_descriptor_t *desc, struct nfs_entry *entry, struct xdr_stream *stream)
+static int xdr_decode(nfs_readdir_descriptor_t *desc,
+ struct nfs_entry *entry, struct xdr_stream *xdr)
{
- __be32 *p = desc->decode(stream, entry, NFS_SERVER(desc->file->f_path.dentry->d_inode), desc->plus);
- if (IS_ERR(p))
- return PTR_ERR(p);
+ int error;
+ error = desc->decode(xdr, entry, desc->plus);
+ if (error)
+ return error;
entry->fattr->time_start = desc->timestamp;
entry->fattr->gencount = desc->gencount;
return 0;
/* Perform conversion from xdr to cache array */
static
int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *entry,
- void *xdr_page, struct page *page, unsigned int buflen)
+ struct page **xdr_pages, struct page *page, unsigned int buflen)
{
struct xdr_stream stream;
- struct xdr_buf buf;
- __be32 *ptr = xdr_page;
+ struct xdr_buf buf = {
+ .pages = xdr_pages,
+ .page_len = buflen,
+ .buflen = buflen,
+ .len = buflen,
+ };
+ struct page *scratch;
struct nfs_cache_array *array;
unsigned int count = 0;
int status;
- buf.head->iov_base = xdr_page;
- buf.head->iov_len = buflen;
- buf.tail->iov_len = 0;
- buf.page_base = 0;
- buf.page_len = 0;
- buf.buflen = buf.head->iov_len;
- buf.len = buf.head->iov_len;
-
- xdr_init_decode(&stream, &buf, ptr);
+ scratch = alloc_page(GFP_KERNEL);
+ if (scratch == NULL)
+ return -ENOMEM;
+ xdr_init_decode(&stream, &buf, NULL);
+ xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE);
do {
status = xdr_decode(desc, entry, &stream);
} else
status = PTR_ERR(array);
}
+
+ put_page(scratch);
return status;
}
void nfs_readdir_free_large_page(void *ptr, struct page **pages,
unsigned int npages)
{
- vm_unmap_ram(ptr, npages);
nfs_readdir_free_pagearray(pages, npages);
}
* to nfs_readdir_free_large_page
*/
static
- void *nfs_readdir_large_page(struct page **pages, unsigned int npages)
+ int nfs_readdir_large_page(struct page **pages, unsigned int npages)
{
- void *ptr;
unsigned int i;
for (i = 0; i < npages; i++) {
goto out_freepages;
pages[i] = page;
}
+ return 0;
- ptr = vm_map_ram(pages, npages, 0, PAGE_KERNEL);
- if (!IS_ERR_OR_NULL(ptr))
- return ptr;
out_freepages:
nfs_readdir_free_pagearray(pages, i);
- return NULL;
+ return -ENOMEM;
}
static
entry.eof = 0;
entry.fh = nfs_alloc_fhandle();
entry.fattr = nfs_alloc_fattr();
+ entry.server = NFS_SERVER(inode);
if (entry.fh == NULL || entry.fattr == NULL)
goto out;
memset(array, 0, sizeof(struct nfs_cache_array));
array->eof_index = -1;
- pages_ptr = nfs_readdir_large_page(pages, array_size);
- if (!pages_ptr)
+ status = nfs_readdir_large_page(pages, array_size);
+ if (status < 0)
goto out_release_array;
do {
unsigned int pglen;
if (status < 0)
break;
pglen = status;
- status = nfs_readdir_page_filler(desc, &entry, pages_ptr, page, pglen);
+ status = nfs_readdir_page_filler(desc, &entry, pages, page, pglen);
if (status < 0) {
if (status == -ENOSPC)
status = 0;
goto out_unblock_sillyrename;
}
inode = nfs_fhget(dentry->d_sb, fhandle, fattr);
- res = (struct dentry *)inode;
+ res = ERR_CAST(inode);
if (IS_ERR(res))
goto out_unblock_sillyrename;
if (nd->flags & LOOKUP_CREATE) {
attr.ia_mode = nd->intent.open.create_mode;
attr.ia_valid = ATTR_MODE;
- if (!IS_POSIXACL(dir))
- attr.ia_mode &= ~current_umask();
+ attr.ia_mode &= ~current_umask();
} else {
open_flags &= ~(O_EXCL | O_CREAT);
attr.ia_valid = 0;
#define NFS_readdirres_sz (1)
#define NFS_statfsres_sz (1+NFS_info_sz)
+
+/*
+ * While encoding arguments, set up the reply buffer in advance to
+ * receive reply data directly into the page cache.
+ */
+static void prepare_reply_buffer(struct rpc_rqst *req, struct page **pages,
+ unsigned int base, unsigned int len,
+ unsigned int bufsize)
+{
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
+ unsigned int replen;
+
+ replen = RPC_REPHDRSIZE + auth->au_rslack + bufsize;
+ xdr_inline_pages(&req->rq_rcv_buf, replen << 2, pages, base, len);
+}
+
/*
- * Common NFS XDR functions as inlines
+ * Handle decode buffer overflows out-of-line.
*/
-static inline __be32 *
-xdr_encode_fhandle(__be32 *p, const struct nfs_fh *fhandle)
+static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
{
- memcpy(p, fhandle->data, NFS2_FHSIZE);
- return p + XDR_QUADLEN(NFS2_FHSIZE);
+ dprintk("NFS: %s prematurely hit the end of our receive buffer. "
+ "Remaining buffer length is %tu words.\n",
+ func, xdr->end - xdr->p);
}
-static inline __be32 *
-xdr_decode_fhandle(__be32 *p, struct nfs_fh *fhandle)
+
+/*
+ * Encode/decode NFSv2 basic data types
+ *
+ * Basic NFSv2 data types are defined in section 2.3 of RFC 1094:
+ * "NFS: Network File System Protocol Specification".
+ *
+ * Not all basic data types have their own encoding and decoding
+ * functions. For run-time efficiency, some data types are encoded
+ * or decoded inline.
+ */
+
+/*
+ * typedef opaque nfsdata<>;
+ */
+static int decode_nfsdata(struct xdr_stream *xdr, struct nfs_readres *result)
{
- /* NFSv2 handles have a fixed length */
- fhandle->size = NFS2_FHSIZE;
- memcpy(fhandle->data, p, NFS2_FHSIZE);
- return p + XDR_QUADLEN(NFS2_FHSIZE);
+ u32 recvd, count;
+ size_t hdrlen;
+ __be32 *p;
+
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ count = be32_to_cpup(p);
+ hdrlen = (u8 *)xdr->p - (u8 *)xdr->iov->iov_base;
+ recvd = xdr->buf->len - hdrlen;
+ if (unlikely(count > recvd))
+ goto out_cheating;
+out:
+ xdr_read_pages(xdr, count);
+ result->eof = 0; /* NFSv2 does not pass EOF flag on the wire. */
+ result->count = count;
+ return count;
+out_cheating:
+ dprintk("NFS: server cheating in read result: "
+ "count %u > recvd %u\n", count, recvd);
+ count = recvd;
+ goto out;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
}
-static inline __be32*
-xdr_encode_time(__be32 *p, struct timespec *timep)
+/*
+ * enum stat {
+ * NFS_OK = 0,
+ * NFSERR_PERM = 1,
+ * NFSERR_NOENT = 2,
+ * NFSERR_IO = 5,
+ * NFSERR_NXIO = 6,
+ * NFSERR_ACCES = 13,
+ * NFSERR_EXIST = 17,
+ * NFSERR_NODEV = 19,
+ * NFSERR_NOTDIR = 20,
+ * NFSERR_ISDIR = 21,
+ * NFSERR_FBIG = 27,
+ * NFSERR_NOSPC = 28,
+ * NFSERR_ROFS = 30,
+ * NFSERR_NAMETOOLONG = 63,
+ * NFSERR_NOTEMPTY = 66,
+ * NFSERR_DQUOT = 69,
+ * NFSERR_STALE = 70,
+ * NFSERR_WFLUSH = 99
+ * };
+ */
+static int decode_stat(struct xdr_stream *xdr, enum nfs_stat *status)
{
- *p++ = htonl(timep->tv_sec);
- /* Convert nanoseconds into microseconds */
- *p++ = htonl(timep->tv_nsec ? timep->tv_nsec / 1000 : 0);
+ __be32 *p;
+
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ *status = be32_to_cpup(p);
+ return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+}
+
+/*
+ * 2.3.2. ftype
+ *
+ * enum ftype {
+ * NFNON = 0,
+ * NFREG = 1,
+ * NFDIR = 2,
+ * NFBLK = 3,
+ * NFCHR = 4,
+ * NFLNK = 5
+ * };
+ *
+ */
+static __be32 *xdr_decode_ftype(__be32 *p, u32 *type)
+{
+ *type = be32_to_cpup(p++);
+ if (unlikely(*type > NF2FIFO))
+ *type = NFBAD;
return p;
}
-static inline __be32*
-xdr_encode_current_server_time(__be32 *p, struct timespec *timep)
+/*
+ * 2.3.3. fhandle
+ *
+ * typedef opaque fhandle[FHSIZE];
+ */
+static void encode_fhandle(struct xdr_stream *xdr, const struct nfs_fh *fh)
+{
+ __be32 *p;
+
+ BUG_ON(fh->size != NFS2_FHSIZE);
+ p = xdr_reserve_space(xdr, NFS2_FHSIZE);
+ memcpy(p, fh->data, NFS2_FHSIZE);
+}
+
+static int decode_fhandle(struct xdr_stream *xdr, struct nfs_fh *fh)
{
- /*
- * 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);
+ __be32 *p;
+
+ p = xdr_inline_decode(xdr, NFS2_FHSIZE);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ fh->size = NFS2_FHSIZE;
+ memcpy(fh->data, p, NFS2_FHSIZE);
+ return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+}
+
+/*
+ * 2.3.4. timeval
+ *
+ * struct timeval {
+ * unsigned int seconds;
+ * unsigned int useconds;
+ * };
+ */
+static __be32 *xdr_encode_time(__be32 *p, const struct timespec *timep)
+{
+ *p++ = cpu_to_be32(timep->tv_sec);
+ if (timep->tv_nsec != 0)
+ *p++ = cpu_to_be32(timep->tv_nsec / NSEC_PER_USEC);
+ else
+ *p++ = cpu_to_be32(0);
+ return p;
+}
+
+/*
+ * 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 servers
+ * work correctly. See description of sattr in section 6.1 of "NFS
+ * Illustrated" by Brent Callaghan, Addison-Wesley, ISBN 0-201-32750-5.
+ */
+static __be32 *xdr_encode_current_server_time(__be32 *p,
+ const struct timespec *timep)
+{
+ *p++ = cpu_to_be32(timep->tv_sec);
+ *p++ = cpu_to_be32(1000000);
return p;
}
-static inline __be32*
-xdr_decode_time(__be32 *p, struct timespec *timep)
+static __be32 *xdr_decode_time(__be32 *p, struct timespec *timep)
{
- timep->tv_sec = ntohl(*p++);
- /* Convert microseconds into nanoseconds */
- timep->tv_nsec = ntohl(*p++) * 1000;
+ timep->tv_sec = be32_to_cpup(p++);
+ timep->tv_nsec = be32_to_cpup(p++) * NSEC_PER_USEC;
return p;
}
-static __be32 *
-xdr_decode_fattr(__be32 *p, struct nfs_fattr *fattr)
+/*
+ * 2.3.5. fattr
+ *
+ * struct fattr {
+ * ftype type;
+ * unsigned int mode;
+ * unsigned int nlink;
+ * unsigned int uid;
+ * unsigned int gid;
+ * unsigned int size;
+ * unsigned int blocksize;
+ * unsigned int rdev;
+ * unsigned int blocks;
+ * unsigned int fsid;
+ * unsigned int fileid;
+ * timeval atime;
+ * timeval mtime;
+ * timeval ctime;
+ * };
+ *
+ */
+static int decode_fattr(struct xdr_stream *xdr, struct nfs_fattr *fattr)
{
u32 rdev, type;
- type = 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.major = ntohl(*p++);
- fattr->fsid.minor = 0;
- 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);
+ __be32 *p;
+
+ p = xdr_inline_decode(xdr, NFS_fattr_sz << 2);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+
fattr->valid |= NFS_ATTR_FATTR_V2;
+
+ p = xdr_decode_ftype(p, &type);
+
+ fattr->mode = be32_to_cpup(p++);
+ fattr->nlink = be32_to_cpup(p++);
+ fattr->uid = be32_to_cpup(p++);
+ fattr->gid = be32_to_cpup(p++);
+ fattr->size = be32_to_cpup(p++);
+ fattr->du.nfs2.blocksize = be32_to_cpup(p++);
+
+ rdev = be32_to_cpup(p++);
fattr->rdev = new_decode_dev(rdev);
- if (type == NFCHR && rdev == NFS2_FIFO_DEV) {
+ if (type == (u32)NFCHR && rdev == (u32)NFS2_FIFO_DEV) {
fattr->mode = (fattr->mode & ~S_IFMT) | S_IFIFO;
fattr->rdev = 0;
}
- return p;
+
+ fattr->du.nfs2.blocks = be32_to_cpup(p++);
+ fattr->fsid.major = be32_to_cpup(p++);
+ fattr->fsid.minor = 0;
+ fattr->fileid = be32_to_cpup(p++);
+
+ p = xdr_decode_time(p, &fattr->atime);
+ p = xdr_decode_time(p, &fattr->mtime);
+ xdr_decode_time(p, &fattr->ctime);
+ return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
}
-static inline __be32 *
-xdr_encode_sattr(__be32 *p, struct iattr *attr)
+/*
+ * 2.3.6. sattr
+ *
+ * struct sattr {
+ * unsigned int mode;
+ * unsigned int uid;
+ * unsigned int gid;
+ * unsigned int size;
+ * timeval atime;
+ * timeval mtime;
+ * };
+ */
+
+#define NFS2_SATTR_NOT_SET (0xffffffff)
+
+static __be32 *xdr_time_not_set(__be32 *p)
{
- const __be32 not_set = __constant_htonl(0xFFFFFFFF);
+ *p++ = cpu_to_be32(NFS2_SATTR_NOT_SET);
+ *p++ = cpu_to_be32(NFS2_SATTR_NOT_SET);
+ return p;
+}
- *p++ = (attr->ia_valid & ATTR_MODE) ? htonl(attr->ia_mode) : not_set;
- *p++ = (attr->ia_valid & ATTR_UID) ? htonl(attr->ia_uid) : not_set;
- *p++ = (attr->ia_valid & ATTR_GID) ? htonl(attr->ia_gid) : not_set;
- *p++ = (attr->ia_valid & ATTR_SIZE) ? htonl(attr->ia_size) : not_set;
+static void encode_sattr(struct xdr_stream *xdr, const struct iattr *attr)
+{
+ __be32 *p;
- if (attr->ia_valid & ATTR_ATIME_SET) {
+ p = xdr_reserve_space(xdr, NFS_sattr_sz << 2);
+
+ if (attr->ia_valid & ATTR_MODE)
+ *p++ = cpu_to_be32(attr->ia_mode);
+ else
+ *p++ = cpu_to_be32(NFS2_SATTR_NOT_SET);
+ if (attr->ia_valid & ATTR_UID)
+ *p++ = cpu_to_be32(attr->ia_uid);
+ else
+ *p++ = cpu_to_be32(NFS2_SATTR_NOT_SET);
+ if (attr->ia_valid & ATTR_GID)
+ *p++ = cpu_to_be32(attr->ia_gid);
+ else
+ *p++ = cpu_to_be32(NFS2_SATTR_NOT_SET);
+ if (attr->ia_valid & ATTR_SIZE)
+ *p++ = cpu_to_be32((u32)attr->ia_size);
+ else
+ *p++ = cpu_to_be32(NFS2_SATTR_NOT_SET);
+
+ if (attr->ia_valid & ATTR_ATIME_SET)
p = xdr_encode_time(p, &attr->ia_atime);
- } else if (attr->ia_valid & ATTR_ATIME) {
+ else if (attr->ia_valid & ATTR_ATIME)
p = xdr_encode_current_server_time(p, &attr->ia_atime);
- } else {
- *p++ = not_set;
- *p++ = not_set;
- }
-
- 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++ = not_set;
- *p++ = not_set;
- }
- return p;
+ else
+ p = xdr_time_not_set(p);
+ if (attr->ia_valid & ATTR_MTIME_SET)
+ xdr_encode_time(p, &attr->ia_mtime);
+ else if (attr->ia_valid & ATTR_MTIME)
+ xdr_encode_current_server_time(p, &attr->ia_mtime);
+ else
+ xdr_time_not_set(p);
}
/*
- * NFS encode functions
+ * 2.3.7. filename
+ *
+ * typedef string filename<MAXNAMLEN>;
*/
+static void encode_filename(struct xdr_stream *xdr,
+ const char *name, u32 length)
+{
+ __be32 *p;
+
+ BUG_ON(length > NFS2_MAXNAMLEN);
+ p = xdr_reserve_space(xdr, 4 + length);
+ xdr_encode_opaque(p, name, length);
+}
+
+static int decode_filename_inline(struct xdr_stream *xdr,
+ const char **name, u32 *length)
+{
+ __be32 *p;
+ u32 count;
+
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ count = be32_to_cpup(p);
+ if (count > NFS3_MAXNAMLEN)
+ goto out_nametoolong;
+ p = xdr_inline_decode(xdr, count);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ *name = (const char *)p;
+ *length = count;
+ return 0;
+out_nametoolong:
+ dprintk("NFS: returned filename too long: %u\n", count);
+ return -ENAMETOOLONG;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+}
+
/*
- * Encode file handle argument
- * GETATTR, READLINK, STATFS
+ * 2.3.8. path
+ *
+ * typedef string path<MAXPATHLEN>;
*/
-static int
-nfs_xdr_fhandle(struct rpc_rqst *req, __be32 *p, struct nfs_fh *fh)
+static void encode_path(struct xdr_stream *xdr, struct page **pages, u32 length)
{
- p = xdr_encode_fhandle(p, fh);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+ __be32 *p;
+
+ BUG_ON(length > NFS2_MAXPATHLEN);
+ p = xdr_reserve_space(xdr, 4);
+ *p = cpu_to_be32(length);
+ xdr_write_pages(xdr, pages, 0, length);
+}
+
+static int decode_path(struct xdr_stream *xdr)
+{
+ u32 length, recvd;
+ size_t hdrlen;
+ __be32 *p;
+
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ length = be32_to_cpup(p);
+ if (unlikely(length >= xdr->buf->page_len || length > NFS_MAXPATHLEN))
+ goto out_size;
+ hdrlen = (u8 *)xdr->p - (u8 *)xdr->iov->iov_base;
+ recvd = xdr->buf->len - hdrlen;
+ if (unlikely(length > recvd))
+ goto out_cheating;
+
+ xdr_read_pages(xdr, length);
+ xdr_terminate_string(xdr->buf, length);
return 0;
+out_size:
+ dprintk("NFS: returned pathname too long: %u\n", length);
+ return -ENAMETOOLONG;
+out_cheating:
+ dprintk("NFS: server cheating in pathname result: "
+ "length %u > received %u\n", length, recvd);
+ return -EIO;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
}
/*
- * Encode SETATTR arguments
+ * 2.3.9. attrstat
+ *
+ * union attrstat switch (stat status) {
+ * case NFS_OK:
+ * fattr attributes;
+ * default:
+ * void;
+ * };
*/
-static int
-nfs_xdr_sattrargs(struct rpc_rqst *req, __be32 *p, struct nfs_sattrargs *args)
+static int decode_attrstat(struct xdr_stream *xdr, struct nfs_fattr *result)
{
- 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;
+ enum nfs_stat status;
+ int error;
+
+ error = decode_stat(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS_OK)
+ goto out_default;
+ error = decode_fattr(xdr, result);
+out:
+ return error;
+out_default:
+ return nfs_stat_to_errno(status);
}
/*
- * Encode directory ops argument
- * LOOKUP, RMDIR
+ * 2.3.10. diropargs
+ *
+ * struct diropargs {
+ * fhandle dir;
+ * filename name;
+ * };
*/
-static int
-nfs_xdr_diropargs(struct rpc_rqst *req, __be32 *p, struct nfs_diropargs *args)
+static void encode_diropargs(struct xdr_stream *xdr, const struct nfs_fh *fh,
+ const char *name, u32 length)
{
- 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;
+ encode_fhandle(xdr, fh);
+ encode_filename(xdr, name, length);
+}
+
+/*
+ * 2.3.11. diropres
+ *
+ * union diropres switch (stat status) {
+ * case NFS_OK:
+ * struct {
+ * fhandle file;
+ * fattr attributes;
+ * } diropok;
+ * default:
+ * void;
+ * };
+ */
+static int decode_diropok(struct xdr_stream *xdr, struct nfs_diropok *result)
+{
+ int error;
+
+ error = decode_fhandle(xdr, result->fh);
+ if (unlikely(error))
+ goto out;
+ error = decode_fattr(xdr, result->fattr);
+out:
+ return error;
}
+static int decode_diropres(struct xdr_stream *xdr, struct nfs_diropok *result)
+{
+ enum nfs_stat status;
+ int error;
+
+ error = decode_stat(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS_OK)
+ goto out_default;
+ error = decode_diropok(xdr, result);
+out:
+ return error;
+out_default:
+ return nfs_stat_to_errno(status);
+}
+
+
/*
- * Encode REMOVE argument
+ * NFSv2 XDR encode functions
+ *
+ * NFSv2 argument types are defined in section 2.2 of RFC 1094:
+ * "NFS: Network File System Protocol Specification".
*/
-static int
-nfs_xdr_removeargs(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args)
+
+static void nfs2_xdr_enc_fhandle(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_fh *fh)
{
- p = xdr_encode_fhandle(p, args->fh);
- p = xdr_encode_array(p, args->name.name, args->name.len);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- return 0;
+ encode_fhandle(xdr, fh);
}
/*
- * 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.
+ * 2.2.3. sattrargs
+ *
+ * struct sattrargs {
+ * fhandle file;
+ * sattr attributes;
+ * };
*/
-static int
-nfs_xdr_readargs(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
+static void nfs2_xdr_enc_sattrargs(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_sattrargs *args)
{
- struct rpc_auth *auth = req->rq_cred->cr_auth;
- unsigned int replen;
- u32 offset = (u32)args->offset;
+ encode_fhandle(xdr, args->fh);
+ encode_sattr(xdr, args->sattr);
+}
+
+static void nfs2_xdr_enc_diropargs(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_diropargs *args)
+{
+ encode_diropargs(xdr, args->fh, args->name, args->len);
+}
+
+static void nfs2_xdr_enc_readlinkargs(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_readlinkargs *args)
+{
+ encode_fhandle(xdr, args->fh);
+ prepare_reply_buffer(req, args->pages, args->pgbase,
+ args->pglen, NFS_readlinkres_sz);
+}
+
+/*
+ * 2.2.7. readargs
+ *
+ * struct readargs {
+ * fhandle file;
+ * unsigned offset;
+ * unsigned count;
+ * unsigned totalcount;
+ * };
+ */
+static void encode_readargs(struct xdr_stream *xdr,
+ const struct nfs_readargs *args)
+{
+ u32 offset = args->offset;
u32 count = args->count;
+ __be32 *p;
+
+ encode_fhandle(xdr, args->fh);
- 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);
+ p = xdr_reserve_space(xdr, 4 + 4 + 4);
+ *p++ = cpu_to_be32(offset);
+ *p++ = cpu_to_be32(count);
+ *p = cpu_to_be32(count);
+}
- /* 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);
+static void nfs2_xdr_enc_readargs(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_readargs *args)
+{
+ encode_readargs(xdr, args);
+ prepare_reply_buffer(req, args->pages, args->pgbase,
+ args->count, NFS_readres_sz);
req->rq_rcv_buf.flags |= XDRBUF_READ;
- return 0;
}
/*
- * Decode READ reply
+ * 2.2.9. writeargs
+ *
+ * struct writeargs {
+ * fhandle file;
+ * unsigned beginoffset;
+ * unsigned offset;
+ * unsigned totalcount;
+ * nfsdata data;
+ * };
*/
-static int
-nfs_xdr_readres(struct rpc_rqst *req, __be32 *p, struct nfs_readres *res)
+static void encode_writeargs(struct xdr_stream *xdr,
+ const struct nfs_writeargs *args)
{
- struct kvec *iov = req->rq_rcv_buf.head;
- size_t hdrlen;
- u32 count, recvd;
- int status;
-
- 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) {
- dprintk("NFS: READ reply header overflowed:"
- "length %Zu > %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);
- }
+ u32 offset = args->offset;
+ u32 count = args->count;
+ __be32 *p;
- recvd = req->rq_rcv_buf.len - hdrlen;
- if (count > recvd) {
- dprintk("NFS: server cheating in read reply: "
- "count %u > recvd %u\n", count, recvd);
- count = recvd;
- }
+ encode_fhandle(xdr, args->fh);
- dprintk("RPC: readres OK count %u\n", count);
- if (count < res->count)
- res->count = count;
+ p = xdr_reserve_space(xdr, 4 + 4 + 4 + 4);
+ *p++ = cpu_to_be32(offset);
+ *p++ = cpu_to_be32(offset);
+ *p++ = cpu_to_be32(count);
- return count;
+ /* nfsdata */
+ *p = cpu_to_be32(count);
+ xdr_write_pages(xdr, args->pages, args->pgbase, count);
}
+static void nfs2_xdr_enc_writeargs(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_writeargs *args)
+{
+ encode_writeargs(xdr, args);
+ xdr->buf->flags |= XDRBUF_WRITE;
+}
/*
- * Write arguments. Splice the buffer to be written into the iovec.
+ * 2.2.10. createargs
+ *
+ * struct createargs {
+ * diropargs where;
+ * sattr attributes;
+ * };
*/
-static int
-nfs_xdr_writeargs(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args)
+static void nfs2_xdr_enc_createargs(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_createargs *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);
+ encode_diropargs(xdr, args->fh, args->name, args->len);
+ encode_sattr(xdr, args->sattr);
+}
- /* Copy the page array */
- xdr_encode_pages(sndbuf, args->pages, args->pgbase, count);
- sndbuf->flags |= XDRBUF_WRITE;
- return 0;
+static void nfs2_xdr_enc_removeargs(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_removeargs *args)
+{
+ encode_diropargs(xdr, args->fh, args->name.name, args->name.len);
}
/*
- * Encode create arguments
- * CREATE, MKDIR
+ * 2.2.12. renameargs
+ *
+ * struct renameargs {
+ * diropargs from;
+ * diropargs to;
+ * };
*/
-static int
-nfs_xdr_createargs(struct rpc_rqst *req, __be32 *p, struct nfs_createargs *args)
+static void nfs2_xdr_enc_renameargs(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_renameargs *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;
+ const struct qstr *old = args->old_name;
+ const struct qstr *new = args->new_name;
+
+ encode_diropargs(xdr, args->old_dir, old->name, old->len);
+ encode_diropargs(xdr, args->new_dir, new->name, new->len);
}
/*
- * Encode RENAME arguments
+ * 2.2.13. linkargs
+ *
+ * struct linkargs {
+ * fhandle from;
+ * diropargs to;
+ * };
*/
-static int
-nfs_xdr_renameargs(struct rpc_rqst *req, __be32 *p, struct nfs_renameargs *args)
+static void nfs2_xdr_enc_linkargs(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_linkargs *args)
{
- p = xdr_encode_fhandle(p, args->old_dir);
- p = xdr_encode_array(p, args->old_name->name, args->old_name->len);
- p = xdr_encode_fhandle(p, args->new_dir);
- p = xdr_encode_array(p, args->new_name->name, args->new_name->len);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- return 0;
+ encode_fhandle(xdr, args->fromfh);
+ encode_diropargs(xdr, args->tofh, args->toname, args->tolen);
}
/*
- * Encode LINK arguments
+ * 2.2.14. symlinkargs
+ *
+ * struct symlinkargs {
+ * diropargs from;
+ * path to;
+ * sattr attributes;
+ * };
*/
-static int
-nfs_xdr_linkargs(struct rpc_rqst *req, __be32 *p, struct nfs_linkargs *args)
+static void nfs2_xdr_enc_symlinkargs(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_symlinkargs *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_diropargs(xdr, args->fromfh, args->fromname, args->fromlen);
+ encode_path(xdr, args->pages, args->pathlen);
+ encode_sattr(xdr, args->sattr);
}
/*
- * Encode SYMLINK arguments
+ * 2.2.17. readdirargs
+ *
+ * struct readdirargs {
+ * fhandle dir;
+ * nfscookie cookie;
+ * unsigned count;
+ * };
*/
-static int
-nfs_xdr_symlinkargs(struct rpc_rqst *req, __be32 *p, struct nfs_symlinkargs *args)
+static void encode_readdirargs(struct xdr_stream *xdr,
+ const struct nfs_readdirargs *args)
{
- struct xdr_buf *sndbuf = &req->rq_snd_buf;
- size_t pad;
+ __be32 *p;
- p = xdr_encode_fhandle(p, args->fromfh);
- p = xdr_encode_array(p, args->fromname, args->fromlen);
- *p++ = htonl(args->pathlen);
- sndbuf->len = xdr_adjust_iovec(sndbuf->head, p);
+ encode_fhandle(xdr, args->fh);
- xdr_encode_pages(sndbuf, args->pages, 0, args->pathlen);
+ p = xdr_reserve_space(xdr, 4 + 4);
+ *p++ = cpu_to_be32(args->cookie);
+ *p = cpu_to_be32(args->count);
+}
- /*
- * xdr_encode_pages may have added a few bytes to ensure the
- * pathname ends on a 4-byte boundary. Start encoding the
- * attributes after the pad bytes.
- */
- pad = sndbuf->tail->iov_len;
- if (pad > 0)
- p++;
- p = xdr_encode_sattr(p, args->sattr);
- sndbuf->len += xdr_adjust_iovec(sndbuf->tail, p) - pad;
- return 0;
+static void nfs2_xdr_enc_readdirargs(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_readdirargs *args)
+{
+ encode_readdirargs(xdr, args);
+ prepare_reply_buffer(req, args->pages, 0,
+ args->count, NFS_readdirres_sz);
}
/*
- * Encode arguments to readdir call
+ * NFSv2 XDR decode functions
+ *
+ * NFSv2 result types are defined in section 2.2 of RFC 1094:
+ * "NFS: Network File System Protocol Specification".
*/
-static int
-nfs_xdr_readdirargs(struct rpc_rqst *req, __be32 *p, struct nfs_readdirargs *args)
+
+static int nfs2_xdr_dec_stat(struct rpc_rqst *req, struct xdr_stream *xdr,
+ void *__unused)
{
- struct rpc_auth *auth = req->rq_cred->cr_auth;
- unsigned int replen;
- u32 count = args->count;
+ enum nfs_stat status;
+ int error;
+
+ error = decode_stat(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS_OK)
+ goto out_default;
+out:
+ return error;
+out_default:
+ return nfs_stat_to_errno(status);
+}
- 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);
+static int nfs2_xdr_dec_attrstat(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_fattr *result)
+{
+ return decode_attrstat(xdr, result);
+}
- /* 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;
+static int nfs2_xdr_dec_diropres(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_diropok *result)
+{
+ return decode_diropres(xdr, result);
}
/*
- * 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.
+ * 2.2.6. readlinkres
+ *
+ * union readlinkres switch (stat status) {
+ * case NFS_OK:
+ * path data;
+ * default:
+ * void;
+ * };
*/
-static int
-nfs_xdr_readdirres(struct rpc_rqst *req, __be32 *p, void *dummy)
+static int nfs2_xdr_dec_readlinkres(struct rpc_rqst *req,
+ struct xdr_stream *xdr, void *__unused)
{
- struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
- struct kvec *iov = rcvbuf->head;
- struct page **page;
- size_t hdrlen;
- unsigned int pglen, recvd;
- 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: READDIR reply header overflowed:"
- "length %Zu > %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);
- }
+ enum nfs_stat status;
+ int error;
+
+ error = decode_stat(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS_OK)
+ goto out_default;
+ error = decode_path(xdr);
+out:
+ return error;
+out_default:
+ return nfs_stat_to_errno(status);
+}
- pglen = rcvbuf->page_len;
- recvd = rcvbuf->len - hdrlen;
- if (pglen > recvd)
- pglen = recvd;
- page = rcvbuf->pages;
- return pglen;
+/*
+ * 2.2.7. readres
+ *
+ * union readres switch (stat status) {
+ * case NFS_OK:
+ * fattr attributes;
+ * nfsdata data;
+ * default:
+ * void;
+ * };
+ */
+static int nfs2_xdr_dec_readres(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_readres *result)
+{
+ enum nfs_stat status;
+ int error;
+
+ error = decode_stat(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS_OK)
+ goto out_default;
+ error = decode_fattr(xdr, result->fattr);
+ if (unlikely(error))
+ goto out;
+ error = decode_nfsdata(xdr, result);
+out:
+ return error;
+out_default:
+ return nfs_stat_to_errno(status);
}
-static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
+static int nfs2_xdr_dec_writeres(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_writeres *result)
{
- dprintk("nfs: %s: prematurely hit end of receive buffer. "
- "Remaining buffer length is %tu words.\n",
- func, xdr->end - xdr->p);
+ /* All NFSv2 writes are "file sync" writes */
+ result->verf->committed = NFS_FILE_SYNC;
+ return decode_attrstat(xdr, result->fattr);
}
-__be32 *
-nfs_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, struct nfs_server *server, int plus)
+/**
+ * nfs2_decode_dirent - Decode a single NFSv2 directory entry stored in
+ * the local page cache.
+ * @xdr: XDR stream where entry resides
+ * @entry: buffer to fill in with entry data
+ * @plus: boolean indicating whether this should be a readdirplus entry
+ *
+ * Returns zero if successful, otherwise a negative errno value is
+ * returned.
+ *
+ * This function is not invoked during READDIR reply decoding, but
+ * rather whenever an application invokes the getdents(2) system call
+ * on a directory already in our cache.
+ *
+ * 2.2.17. entry
+ *
+ * struct entry {
+ * unsigned fileid;
+ * filename name;
+ * nfscookie cookie;
+ * entry *nextentry;
+ * };
+ */
+int nfs2_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
+ int plus)
{
__be32 *p;
+ int error;
+
p = xdr_inline_decode(xdr, 4);
- if (unlikely(!p))
+ if (unlikely(p == NULL))
goto out_overflow;
- if (!ntohl(*p++)) {
+ if (*p++ == xdr_zero) {
p = xdr_inline_decode(xdr, 4);
- if (unlikely(!p))
+ if (unlikely(p == NULL))
goto out_overflow;
- if (!ntohl(*p++))
- return ERR_PTR(-EAGAIN);
+ if (*p++ == xdr_zero)
+ return -EAGAIN;
entry->eof = 1;
- return ERR_PTR(-EBADCOOKIE);
+ return -EBADCOOKIE;
}
- p = xdr_inline_decode(xdr, 8);
- if (unlikely(!p))
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(p == NULL))
goto out_overflow;
+ entry->ino = be32_to_cpup(p);
- entry->ino = ntohl(*p++);
- entry->len = ntohl(*p++);
+ error = decode_filename_inline(xdr, &entry->name, &entry->len);
+ if (unlikely(error))
+ return error;
- p = xdr_inline_decode(xdr, entry->len + 4);
- if (unlikely(!p))
+ /*
+ * The type (size and byte order) of nfscookie isn't defined in
+ * RFC 1094. This implementation assumes that it's an XDR uint32.
+ */
+ entry->prev_cookie = entry->cookie;
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(p == NULL))
goto out_overflow;
- entry->name = (const char *) p;
- p += XDR_QUADLEN(entry->len);
- entry->prev_cookie = entry->cookie;
- entry->cookie = ntohl(*p++);
+ entry->cookie = be32_to_cpup(p);
entry->d_type = DT_UNKNOWN;
- /* Peek at the next entry to see if we're at EOD */
- p = xdr_inline_peek(xdr, 4 + 4);
- entry->eof = 0;
- if (p != NULL)
- entry->eof = (p[0] == xdr_zero) && (p[1] != xdr_zero);
- return p;
+ return 0;
out_overflow:
print_overflow_msg(__func__, xdr);
- return ERR_PTR(-EAGAIN);
-}
-
-/*
- * NFS XDR decode functions
- */
-/*
- * Decode simple status reply
- */
-static int
-nfs_xdr_stat(struct rpc_rqst *req, __be32 *p, void *dummy)
-{
- int status;
-
- if ((status = ntohl(*p++)) != 0)
- status = nfs_stat_to_errno(status);
- return status;
+ return -EAGAIN;
}
/*
- * Decode attrstat reply
- * GETATTR, SETATTR, WRITE
- */
-static int
-nfs_xdr_attrstat(struct rpc_rqst *req, __be32 *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
+ * 2.2.17. readdirres
+ *
+ * union readdirres switch (stat status) {
+ * case NFS_OK:
+ * struct {
+ * entry *entries;
+ * bool eof;
+ * } readdirok;
+ * default:
+ * void;
+ * };
+ *
+ * Read the directory contents into the page cache, but don't
+ * touch them. The actual decoding is done by nfs2_decode_dirent()
+ * during subsequent nfs_readdir() calls.
*/
-static int
-nfs_xdr_diropres(struct rpc_rqst *req, __be32 *p, struct nfs_diropok *res)
+static int decode_readdirok(struct xdr_stream *xdr)
{
- int status;
+ u32 recvd, pglen;
+ size_t hdrlen;
- 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;
+ pglen = xdr->buf->page_len;
+ hdrlen = (u8 *)xdr->p - (u8 *)xdr->iov->iov_base;
+ recvd = xdr->buf->len - hdrlen;
+ if (unlikely(pglen > recvd))
+ goto out_cheating;
+out:
+ xdr_read_pages(xdr, pglen);
+ return pglen;
+out_cheating:
+ dprintk("NFS: server cheating in readdir result: "
+ "pglen %u > recvd %u\n", pglen, recvd);
+ pglen = recvd;
+ goto out;
}
-/*
- * Encode READLINK args
- */
-static int
-nfs_xdr_readlinkargs(struct rpc_rqst *req, __be32 *p, struct nfs_readlinkargs *args)
+static int nfs2_xdr_dec_readdirres(struct rpc_rqst *req,
+ struct xdr_stream *xdr, void *__unused)
{
- struct rpc_auth *auth = req->rq_cred->cr_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;
+ enum nfs_stat status;
+ int error;
+
+ error = decode_stat(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS_OK)
+ goto out_default;
+ error = decode_readdirok(xdr);
+out:
+ return error;
+out_default:
+ return nfs_stat_to_errno(status);
}
/*
- * Decode READLINK reply
+ * 2.2.18. statfsres
+ *
+ * union statfsres (stat status) {
+ * case NFS_OK:
+ * struct {
+ * unsigned tsize;
+ * unsigned bsize;
+ * unsigned blocks;
+ * unsigned bfree;
+ * unsigned bavail;
+ * } info;
+ * default:
+ * void;
+ * };
*/
-static int
-nfs_xdr_readlinkres(struct rpc_rqst *req, __be32 *p, void *dummy)
+static int decode_info(struct xdr_stream *xdr, struct nfs2_fsstat *result)
{
- struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
- struct kvec *iov = rcvbuf->head;
- size_t hdrlen;
- u32 len, recvd;
- int status;
-
- if ((status = ntohl(*p++)))
- return nfs_stat_to_errno(status);
- /* Convert length of symlink */
- len = ntohl(*p++);
- if (len >= rcvbuf->page_len) {
- dprintk("nfs: server returned giant symlink!\n");
- return -ENAMETOOLONG;
- }
- hdrlen = (u8 *) p - (u8 *) iov->iov_base;
- if (iov->iov_len < hdrlen) {
- dprintk("NFS: READLINK reply header overflowed:"
- "length %Zu > %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) {
- dprintk("NFS: server cheating in readlink reply: "
- "count %u > recvd %u\n", len, recvd);
- return -EIO;
- }
+ __be32 *p;
- xdr_terminate_string(rcvbuf, len);
+ p = xdr_inline_decode(xdr, NFS_info_sz << 2);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ result->tsize = be32_to_cpup(p++);
+ result->bsize = be32_to_cpup(p++);
+ result->blocks = be32_to_cpup(p++);
+ result->bfree = be32_to_cpup(p++);
+ result->bavail = be32_to_cpup(p);
return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
}
-/*
- * Decode WRITE reply
- */
-static int
-nfs_xdr_writeres(struct rpc_rqst *req, __be32 *p, struct nfs_writeres *res)
+static int nfs2_xdr_dec_statfsres(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs2_fsstat *result)
{
- res->verf->committed = NFS_FILE_SYNC;
- return nfs_xdr_attrstat(req, p, res->fattr);
+ enum nfs_stat status;
+ int error;
+
+ error = decode_stat(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS_OK)
+ goto out_default;
+ error = decode_info(xdr, result);
+out:
+ return error;
+out_default:
+ return nfs_stat_to_errno(status);
}
-/*
- * Decode STATFS reply
- */
-static int
-nfs_xdr_statfsres(struct rpc_rqst *req, __be32 *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 {
+static const struct {
int stat;
int errno;
} nfs_errtbl[] = {
{ -1, -EIO }
};
-/*
- * Convert an NFS error code to a local one.
- * This one is used jointly by NFSv2 and NFSv3.
+/**
+ * nfs_stat_to_errno - convert an NFS status code to a local errno
+ * @status: NFS status code to convert
+ *
+ * Returns a local errno value, or -EIO if the NFS status code is
+ * not recognized. This function is used jointly by NFSv2 and NFSv3.
*/
-int
-nfs_stat_to_errno(int stat)
+int nfs_stat_to_errno(enum nfs_stat status)
{
int i;
for (i = 0; nfs_errtbl[i].stat != -1; i++) {
- if (nfs_errtbl[i].stat == stat)
+ if (nfs_errtbl[i].stat == (int)status)
return nfs_errtbl[i].errno;
}
- dprintk("nfs_stat_to_errno: bad nfs status return value: %d\n", stat);
+ dprintk("NFS: Unrecognized nfs status value: %u\n", status);
return nfs_errtbl[i].errno;
}
#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_encode = (kxdreproc_t)nfs2_xdr_enc_##argtype, \
+ .p_decode = (kxdrdproc_t)nfs2_xdr_dec_##restype, \
.p_arglen = NFS_##argtype##_sz, \
.p_replen = NFS_##restype##_sz, \
.p_timer = timer, \
.p_name = #proc, \
}
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, removeargs, 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),
+ 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, removeargs, 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 = {
#define NFS3_filename_sz (1+(NFS3_MAXNAMLEN>>2))
#define NFS3_path_sz (1+(NFS3_MAXPATHLEN>>2))
#define NFS3_fattr_sz (21)
-#define NFS3_wcc_attr_sz (6)
+#define NFS3_cookieverf_sz (NFS3_COOKIEVERFSIZE>>2)
+#define NFS3_wcc_attr_sz (6)
#define NFS3_pre_op_attr_sz (1+NFS3_wcc_attr_sz)
#define NFS3_post_op_attr_sz (1+NFS3_fattr_sz)
-#define NFS3_wcc_data_sz (NFS3_pre_op_attr_sz+NFS3_post_op_attr_sz)
-#define NFS3_fsstat_sz
-#define NFS3_fsinfo_sz
-#define NFS3_pathconf_sz
-#define NFS3_entry_sz (NFS3_filename_sz+3)
-
-#define NFS3_sattrargs_sz (NFS3_fh_sz+NFS3_sattr_sz+3)
+#define NFS3_wcc_data_sz (NFS3_pre_op_attr_sz+NFS3_post_op_attr_sz)
#define NFS3_diropargs_sz (NFS3_fh_sz+NFS3_filename_sz)
-#define NFS3_removeargs_sz (NFS3_fh_sz+NFS3_filename_sz)
+
+#define NFS3_getattrargs_sz (NFS3_fh_sz)
+#define NFS3_setattrargs_sz (NFS3_fh_sz+NFS3_sattr_sz+3)
+#define NFS3_lookupargs_sz (NFS3_fh_sz+NFS3_filename_sz)
#define NFS3_accessargs_sz (NFS3_fh_sz+1)
#define NFS3_readlinkargs_sz (NFS3_fh_sz)
#define NFS3_readargs_sz (NFS3_fh_sz+3)
#define NFS3_mkdirargs_sz (NFS3_diropargs_sz+NFS3_sattr_sz)
#define NFS3_symlinkargs_sz (NFS3_diropargs_sz+1+NFS3_sattr_sz)
#define NFS3_mknodargs_sz (NFS3_diropargs_sz+2+NFS3_sattr_sz)
+#define NFS3_removeargs_sz (NFS3_fh_sz+NFS3_filename_sz)
#define NFS3_renameargs_sz (NFS3_diropargs_sz+NFS3_diropargs_sz)
#define NFS3_linkargs_sz (NFS3_fh_sz+NFS3_diropargs_sz)
-#define NFS3_readdirargs_sz (NFS3_fh_sz+2)
+#define NFS3_readdirargs_sz (NFS3_fh_sz+NFS3_cookieverf_sz+3)
+#define NFS3_readdirplusargs_sz (NFS3_fh_sz+NFS3_cookieverf_sz+4)
#define NFS3_commitargs_sz (NFS3_fh_sz+3)
-#define NFS3_attrstat_sz (1+NFS3_fattr_sz)
-#define NFS3_wccstat_sz (1+NFS3_wcc_data_sz)
-#define NFS3_removeres_sz (NFS3_wccstat_sz)
+#define NFS3_getattrres_sz (1+NFS3_fattr_sz)
+#define NFS3_setattrres_sz (1+NFS3_wcc_data_sz)
+#define NFS3_removeres_sz (NFS3_setattrres_sz)
#define NFS3_lookupres_sz (1+NFS3_fh_sz+(2 * NFS3_post_op_attr_sz))
#define NFS3_accessres_sz (1+NFS3_post_op_attr_sz+1)
#define NFS3_readlinkres_sz (1+NFS3_post_op_attr_sz+1)
[NF3FIFO] = S_IFIFO,
};
+/*
+ * While encoding arguments, set up the reply buffer in advance to
+ * receive reply data directly into the page cache.
+ */
+static void prepare_reply_buffer(struct rpc_rqst *req, struct page **pages,
+ unsigned int base, unsigned int len,
+ unsigned int bufsize)
+{
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
+ unsigned int replen;
+
+ replen = RPC_REPHDRSIZE + auth->au_rslack + bufsize;
+ xdr_inline_pages(&req->rq_rcv_buf, replen << 2, pages, base, len);
+}
+
+/*
+ * Handle decode buffer overflows out-of-line.
+ */
static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
{
- dprintk("nfs: %s: prematurely hit end of receive buffer. "
+ dprintk("NFS: %s prematurely hit the end of our receive buffer. "
"Remaining buffer length is %tu words.\n",
func, xdr->end - xdr->p);
}
+
/*
- * Common NFS XDR functions as inlines
+ * Encode/decode NFSv3 basic data types
+ *
+ * Basic NFSv3 data types are defined in section 2.5 of RFC 1813:
+ * "NFS Version 3 Protocol Specification".
+ *
+ * Not all basic data types have their own encoding and decoding
+ * functions. For run-time efficiency, some data types are encoded
+ * or decoded inline.
*/
-static inline __be32 *
-xdr_encode_fhandle(__be32 *p, const struct nfs_fh *fh)
-{
- return xdr_encode_array(p, fh->data, fh->size);
-}
-static inline __be32 *
-xdr_decode_fhandle(__be32 *p, struct nfs_fh *fh)
+static void encode_uint32(struct xdr_stream *xdr, u32 value)
{
- if ((fh->size = ntohl(*p++)) <= NFS3_FHSIZE) {
- memcpy(fh->data, p, fh->size);
- return p + XDR_QUADLEN(fh->size);
- }
- return NULL;
+ __be32 *p = xdr_reserve_space(xdr, 4);
+ *p = cpu_to_be32(value);
}
-static inline __be32 *
-xdr_decode_fhandle_stream(struct xdr_stream *xdr, struct nfs_fh *fh)
+static int decode_uint32(struct xdr_stream *xdr, u32 *value)
{
__be32 *p;
+
p = xdr_inline_decode(xdr, 4);
- if (unlikely(!p))
+ if (unlikely(p == NULL))
goto out_overflow;
- fh->size = ntohl(*p++);
-
- if (fh->size <= NFS3_FHSIZE) {
- p = xdr_inline_decode(xdr, fh->size);
- if (unlikely(!p))
- goto out_overflow;
- memcpy(fh->data, p, fh->size);
- return p + XDR_QUADLEN(fh->size);
- }
- return NULL;
-
+ *value = be32_to_cpup(p);
+ return 0;
out_overflow:
print_overflow_msg(__func__, xdr);
- return ERR_PTR(-EIO);
+ return -EIO;
}
-/*
- * Encode/decode time.
- */
-static inline __be32 *
-xdr_encode_time3(__be32 *p, struct timespec *timep)
+static int decode_uint64(struct xdr_stream *xdr, u64 *value)
{
- *p++ = htonl(timep->tv_sec);
- *p++ = htonl(timep->tv_nsec);
- return p;
-}
+ __be32 *p;
-static inline __be32 *
-xdr_decode_time3(__be32 *p, struct timespec *timep)
-{
- timep->tv_sec = ntohl(*p++);
- timep->tv_nsec = ntohl(*p++);
- return p;
+ p = xdr_inline_decode(xdr, 8);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ xdr_decode_hyper(p, value);
+ return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
}
-static __be32 *
-xdr_decode_fattr(__be32 *p, struct nfs_fattr *fattr)
+/*
+ * fileid3
+ *
+ * typedef uint64 fileid3;
+ */
+static __be32 *xdr_decode_fileid3(__be32 *p, u64 *fileid)
{
- unsigned int type, major, minor;
- umode_t fmode;
-
- type = ntohl(*p++);
- if (type > NF3FIFO)
- type = NF3NON;
- fmode = nfs_type2fmt[type];
- fattr->mode = (ntohl(*p++) & ~S_IFMT) | fmode;
- fattr->nlink = ntohl(*p++);
- fattr->uid = ntohl(*p++);
- fattr->gid = ntohl(*p++);
- p = xdr_decode_hyper(p, &fattr->size);
- p = xdr_decode_hyper(p, &fattr->du.nfs3.used);
-
- /* Turn remote device info into Linux-specific dev_t */
- major = ntohl(*p++);
- minor = ntohl(*p++);
- fattr->rdev = MKDEV(major, minor);
- if (MAJOR(fattr->rdev) != major || MINOR(fattr->rdev) != minor)
- fattr->rdev = 0;
-
- p = xdr_decode_hyper(p, &fattr->fsid.major);
- fattr->fsid.minor = 0;
- p = xdr_decode_hyper(p, &fattr->fileid);
- p = xdr_decode_time3(p, &fattr->atime);
- p = xdr_decode_time3(p, &fattr->mtime);
- p = xdr_decode_time3(p, &fattr->ctime);
-
- /* Update the mode bits */
- fattr->valid |= NFS_ATTR_FATTR_V3;
- return p;
+ return xdr_decode_hyper(p, fileid);
}
-static inline __be32 *
-xdr_encode_sattr(__be32 *p, struct iattr *attr)
+static int decode_fileid3(struct xdr_stream *xdr, u64 *fileid)
{
- if (attr->ia_valid & ATTR_MODE) {
- *p++ = xdr_one;
- *p++ = htonl(attr->ia_mode & S_IALLUGO);
- } else {
- *p++ = xdr_zero;
- }
- if (attr->ia_valid & ATTR_UID) {
- *p++ = xdr_one;
- *p++ = htonl(attr->ia_uid);
- } else {
- *p++ = xdr_zero;
- }
- if (attr->ia_valid & ATTR_GID) {
- *p++ = xdr_one;
- *p++ = htonl(attr->ia_gid);
- } else {
- *p++ = xdr_zero;
- }
- if (attr->ia_valid & ATTR_SIZE) {
- *p++ = xdr_one;
- p = xdr_encode_hyper(p, (__u64) attr->ia_size);
- } else {
- *p++ = xdr_zero;
- }
- if (attr->ia_valid & ATTR_ATIME_SET) {
- *p++ = xdr_two;
- p = xdr_encode_time3(p, &attr->ia_atime);
- } else if (attr->ia_valid & ATTR_ATIME) {
- *p++ = xdr_one;
- } else {
- *p++ = xdr_zero;
- }
- if (attr->ia_valid & ATTR_MTIME_SET) {
- *p++ = xdr_two;
- p = xdr_encode_time3(p, &attr->ia_mtime);
- } else if (attr->ia_valid & ATTR_MTIME) {
- *p++ = xdr_one;
- } else {
- *p++ = xdr_zero;
- }
- return p;
+ return decode_uint64(xdr, fileid);
}
-static inline __be32 *
-xdr_decode_wcc_attr(__be32 *p, struct nfs_fattr *fattr)
+/*
+ * filename3
+ *
+ * typedef string filename3<>;
+ */
+static void encode_filename3(struct xdr_stream *xdr,
+ const char *name, u32 length)
{
- p = xdr_decode_hyper(p, &fattr->pre_size);
- p = xdr_decode_time3(p, &fattr->pre_mtime);
- p = xdr_decode_time3(p, &fattr->pre_ctime);
- fattr->valid |= NFS_ATTR_FATTR_PRESIZE
- | NFS_ATTR_FATTR_PREMTIME
- | NFS_ATTR_FATTR_PRECTIME;
- return p;
-}
+ __be32 *p;
-static inline __be32 *
-xdr_decode_post_op_attr(__be32 *p, struct nfs_fattr *fattr)
-{
- if (*p++)
- p = xdr_decode_fattr(p, fattr);
- return p;
+ BUG_ON(length > NFS3_MAXNAMLEN);
+ p = xdr_reserve_space(xdr, 4 + length);
+ xdr_encode_opaque(p, name, length);
}
-static inline __be32 *
-xdr_decode_post_op_attr_stream(struct xdr_stream *xdr, struct nfs_fattr *fattr)
+static int decode_inline_filename3(struct xdr_stream *xdr,
+ const char **name, u32 *length)
{
__be32 *p;
+ u32 count;
p = xdr_inline_decode(xdr, 4);
- if (unlikely(!p))
+ if (unlikely(p == NULL))
goto out_overflow;
- if (ntohl(*p++)) {
- p = xdr_inline_decode(xdr, 84);
- if (unlikely(!p))
- goto out_overflow;
- p = xdr_decode_fattr(p, fattr);
- }
- return p;
+ count = be32_to_cpup(p);
+ if (count > NFS3_MAXNAMLEN)
+ goto out_nametoolong;
+ p = xdr_inline_decode(xdr, count);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ *name = (const char *)p;
+ *length = count;
+ return 0;
+
+out_nametoolong:
+ dprintk("NFS: returned filename too long: %u\n", count);
+ return -ENAMETOOLONG;
out_overflow:
print_overflow_msg(__func__, xdr);
- return ERR_PTR(-EIO);
+ return -EIO;
}
-static inline __be32 *
-xdr_decode_pre_op_attr(__be32 *p, struct nfs_fattr *fattr)
+/*
+ * nfspath3
+ *
+ * typedef string nfspath3<>;
+ */
+static void encode_nfspath3(struct xdr_stream *xdr, struct page **pages,
+ const u32 length)
{
- if (*p++)
- return xdr_decode_wcc_attr(p, fattr);
- return p;
+ BUG_ON(length > NFS3_MAXPATHLEN);
+ encode_uint32(xdr, length);
+ xdr_write_pages(xdr, pages, 0, length);
}
-
-static inline __be32 *
-xdr_decode_wcc_data(__be32 *p, struct nfs_fattr *fattr)
+static int decode_nfspath3(struct xdr_stream *xdr)
{
- p = xdr_decode_pre_op_attr(p, fattr);
- return xdr_decode_post_op_attr(p, fattr);
-}
-
-/*
- * NFS encode functions
- */
+ u32 recvd, count;
+ size_t hdrlen;
+ __be32 *p;
-/*
- * Encode file handle argument
- */
-static int
-nfs3_xdr_fhandle(struct rpc_rqst *req, __be32 *p, struct nfs_fh *fh)
-{
- p = xdr_encode_fhandle(p, fh);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ count = be32_to_cpup(p);
+ if (unlikely(count >= xdr->buf->page_len || count > NFS3_MAXPATHLEN))
+ goto out_nametoolong;
+ hdrlen = (u8 *)xdr->p - (u8 *)xdr->iov->iov_base;
+ recvd = xdr->buf->len - hdrlen;
+ if (unlikely(count > recvd))
+ goto out_cheating;
+
+ xdr_read_pages(xdr, count);
+ xdr_terminate_string(xdr->buf, count);
return 0;
-}
-/*
- * Encode SETATTR arguments
- */
-static int
-nfs3_xdr_sattrargs(struct rpc_rqst *req, __be32 *p, struct nfs3_sattrargs *args)
-{
- p = xdr_encode_fhandle(p, args->fh);
- p = xdr_encode_sattr(p, args->sattr);
- *p++ = htonl(args->guard);
- if (args->guard)
- p = xdr_encode_time3(p, &args->guardtime);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- return 0;
+out_nametoolong:
+ dprintk("NFS: returned pathname too long: %u\n", count);
+ return -ENAMETOOLONG;
+out_cheating:
+ dprintk("NFS: server cheating in pathname result: "
+ "count %u > recvd %u\n", count, recvd);
+ return -EIO;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
}
/*
- * Encode directory ops argument
+ * cookie3
+ *
+ * typedef uint64 cookie3
*/
-static int
-nfs3_xdr_diropargs(struct rpc_rqst *req, __be32 *p, struct nfs3_diropargs *args)
+static __be32 *xdr_encode_cookie3(__be32 *p, u64 cookie)
{
- 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;
+ return xdr_encode_hyper(p, cookie);
}
-/*
- * Encode REMOVE argument
- */
-static int
-nfs3_xdr_removeargs(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args)
+static int decode_cookie3(struct xdr_stream *xdr, u64 *cookie)
{
- p = xdr_encode_fhandle(p, args->fh);
- p = xdr_encode_array(p, args->name.name, args->name.len);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- return 0;
+ return decode_uint64(xdr, cookie);
}
/*
- * Encode access() argument
+ * cookieverf3
+ *
+ * typedef opaque cookieverf3[NFS3_COOKIEVERFSIZE];
*/
-static int
-nfs3_xdr_accessargs(struct rpc_rqst *req, __be32 *p, struct nfs3_accessargs *args)
+static __be32 *xdr_encode_cookieverf3(__be32 *p, const __be32 *verifier)
{
- p = xdr_encode_fhandle(p, args->fh);
- *p++ = htonl(args->access);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- return 0;
+ memcpy(p, verifier, NFS3_COOKIEVERFSIZE);
+ return p + XDR_QUADLEN(NFS3_COOKIEVERFSIZE);
}
-/*
- * 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
-nfs3_xdr_readargs(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
+static int decode_cookieverf3(struct xdr_stream *xdr, __be32 *verifier)
{
- struct rpc_auth *auth = req->rq_cred->cr_auth;
- unsigned int replen;
- u32 count = args->count;
-
- p = xdr_encode_fhandle(p, args->fh);
- p = xdr_encode_hyper(p, args->offset);
- *p++ = htonl(count);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+ __be32 *p;
- /* Inline the page array */
- replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS3_readres_sz) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen,
- args->pages, args->pgbase, count);
- req->rq_rcv_buf.flags |= XDRBUF_READ;
+ p = xdr_inline_decode(xdr, NFS3_COOKIEVERFSIZE);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ memcpy(verifier, p, NFS3_COOKIEVERFSIZE);
return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
}
/*
- * Write arguments. Splice the buffer to be written into the iovec.
+ * createverf3
+ *
+ * typedef opaque createverf3[NFS3_CREATEVERFSIZE];
*/
-static int
-nfs3_xdr_writeargs(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args)
+static void encode_createverf3(struct xdr_stream *xdr, const __be32 *verifier)
{
- struct xdr_buf *sndbuf = &req->rq_snd_buf;
- u32 count = args->count;
+ __be32 *p;
- p = xdr_encode_fhandle(p, args->fh);
- p = xdr_encode_hyper(p, args->offset);
- *p++ = htonl(count);
- *p++ = htonl(args->stable);
- *p++ = htonl(count);
- sndbuf->len = xdr_adjust_iovec(sndbuf->head, p);
-
- /* Copy the page array */
- xdr_encode_pages(sndbuf, args->pages, args->pgbase, count);
- sndbuf->flags |= XDRBUF_WRITE;
- return 0;
+ p = xdr_reserve_space(xdr, NFS3_CREATEVERFSIZE);
+ memcpy(p, verifier, NFS3_CREATEVERFSIZE);
}
-/*
- * Encode CREATE arguments
- */
-static int
-nfs3_xdr_createargs(struct rpc_rqst *req, __be32 *p, struct nfs3_createargs *args)
+static int decode_writeverf3(struct xdr_stream *xdr, __be32 *verifier)
{
- p = xdr_encode_fhandle(p, args->fh);
- p = xdr_encode_array(p, args->name, args->len);
-
- *p++ = htonl(args->createmode);
- if (args->createmode == NFS3_CREATE_EXCLUSIVE) {
- *p++ = args->verifier[0];
- *p++ = args->verifier[1];
- } else
- p = xdr_encode_sattr(p, args->sattr);
+ __be32 *p;
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+ p = xdr_inline_decode(xdr, NFS3_WRITEVERFSIZE);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ memcpy(verifier, p, NFS3_WRITEVERFSIZE);
return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
}
/*
- * Encode MKDIR arguments
+ * size3
+ *
+ * typedef uint64 size3;
*/
-static int
-nfs3_xdr_mkdirargs(struct rpc_rqst *req, __be32 *p, struct nfs3_mkdirargs *args)
+static __be32 *xdr_decode_size3(__be32 *p, u64 *size)
{
- 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;
+ return xdr_decode_hyper(p, size);
}
/*
- * Encode SYMLINK arguments
+ * nfsstat3
+ *
+ * enum nfsstat3 {
+ * NFS3_OK = 0,
+ * ...
+ * }
*/
-static int
-nfs3_xdr_symlinkargs(struct rpc_rqst *req, __be32 *p, struct nfs3_symlinkargs *args)
+#define NFS3_OK NFS_OK
+
+static int decode_nfsstat3(struct xdr_stream *xdr, enum nfs_stat *status)
{
- p = xdr_encode_fhandle(p, args->fromfh);
- p = xdr_encode_array(p, args->fromname, args->fromlen);
- p = xdr_encode_sattr(p, args->sattr);
- *p++ = htonl(args->pathlen);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+ __be32 *p;
- /* Copy the page */
- xdr_encode_pages(&req->rq_snd_buf, args->pages, 0, args->pathlen);
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ *status = be32_to_cpup(p);
return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
}
/*
- * Encode MKNOD arguments
+ * ftype3
+ *
+ * enum ftype3 {
+ * NF3REG = 1,
+ * NF3DIR = 2,
+ * NF3BLK = 3,
+ * NF3CHR = 4,
+ * NF3LNK = 5,
+ * NF3SOCK = 6,
+ * NF3FIFO = 7
+ * };
*/
-static int
-nfs3_xdr_mknodargs(struct rpc_rqst *req, __be32 *p, struct nfs3_mknodargs *args)
-{
- p = xdr_encode_fhandle(p, args->fh);
- p = xdr_encode_array(p, args->name, args->len);
- *p++ = htonl(args->type);
- p = xdr_encode_sattr(p, args->sattr);
- if (args->type == NF3CHR || args->type == NF3BLK) {
- *p++ = htonl(MAJOR(args->rdev));
- *p++ = htonl(MINOR(args->rdev));
- }
-
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- return 0;
+static void encode_ftype3(struct xdr_stream *xdr, const u32 type)
+{
+ BUG_ON(type > NF3FIFO);
+ encode_uint32(xdr, type);
}
-/*
- * Encode RENAME arguments
- */
-static int
-nfs3_xdr_renameargs(struct rpc_rqst *req, __be32 *p, struct nfs_renameargs *args)
-{
- p = xdr_encode_fhandle(p, args->old_dir);
- p = xdr_encode_array(p, args->old_name->name, args->old_name->len);
- p = xdr_encode_fhandle(p, args->new_dir);
- p = xdr_encode_array(p, args->new_name->name, args->new_name->len);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- return 0;
+static __be32 *xdr_decode_ftype3(__be32 *p, umode_t *mode)
+{
+ u32 type;
+
+ type = be32_to_cpup(p++);
+ if (type > NF3FIFO)
+ type = NF3NON;
+ *mode = nfs_type2fmt[type];
+ return p;
}
/*
- * Encode LINK arguments
+ * specdata3
+ *
+ * struct specdata3 {
+ * uint32 specdata1;
+ * uint32 specdata2;
+ * };
*/
-static int
-nfs3_xdr_linkargs(struct rpc_rqst *req, __be32 *p, struct nfs3_linkargs *args)
+static void encode_specdata3(struct xdr_stream *xdr, const dev_t rdev)
{
- 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;
+ __be32 *p;
+
+ p = xdr_reserve_space(xdr, 8);
+ *p++ = cpu_to_be32(MAJOR(rdev));
+ *p = cpu_to_be32(MINOR(rdev));
}
-/*
- * Encode arguments to readdir call
- */
-static int
-nfs3_xdr_readdirargs(struct rpc_rqst *req, __be32 *p, struct nfs3_readdirargs *args)
+static __be32 *xdr_decode_specdata3(__be32 *p, dev_t *rdev)
{
- struct rpc_auth *auth = req->rq_cred->cr_auth;
- unsigned int replen;
- u32 count = args->count;
-
- p = xdr_encode_fhandle(p, args->fh);
- p = xdr_encode_hyper(p, args->cookie);
- *p++ = args->verf[0];
- *p++ = args->verf[1];
- if (args->plus) {
- /* readdirplus: need dircount + buffer size.
- * We just make sure we make dircount big enough */
- *p++ = htonl(count >> 3);
- }
- *p++ = htonl(count);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+ unsigned int major, minor;
- /* Inline the page array */
- replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS3_readdirres_sz) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 0, count);
- return 0;
+ major = be32_to_cpup(p++);
+ minor = be32_to_cpup(p++);
+ *rdev = MKDEV(major, minor);
+ if (MAJOR(*rdev) != major || MINOR(*rdev) != minor)
+ *rdev = 0;
+ return p;
}
/*
- * Decode the result of a readdir call.
- * We just check for syntactical correctness.
+ * nfs_fh3
+ *
+ * struct nfs_fh3 {
+ * opaque data<NFS3_FHSIZE>;
+ * };
*/
-static int
-nfs3_xdr_readdirres(struct rpc_rqst *req, __be32 *p, struct nfs3_readdirres *res)
+static void encode_nfs_fh3(struct xdr_stream *xdr, const struct nfs_fh *fh)
{
- struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
- struct kvec *iov = rcvbuf->head;
- struct page **page;
- size_t hdrlen;
- u32 recvd, pglen;
- int status;
-
- status = ntohl(*p++);
- /* Decode post_op_attrs */
- p = xdr_decode_post_op_attr(p, res->dir_attr);
- if (status)
- return nfs_stat_to_errno(status);
- /* Decode verifier cookie */
- if (res->verf) {
- res->verf[0] = *p++;
- res->verf[1] = *p++;
- } else {
- p += 2;
- }
-
- hdrlen = (u8 *) p - (u8 *) iov->iov_base;
- if (iov->iov_len < hdrlen) {
- dprintk("NFS: READDIR reply header overflowed:"
- "length %Zu > %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;
+ __be32 *p;
- return pglen;
+ BUG_ON(fh->size > NFS3_FHSIZE);
+ p = xdr_reserve_space(xdr, 4 + fh->size);
+ xdr_encode_opaque(p, fh->data, fh->size);
}
-__be32 *
-nfs3_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, struct nfs_server *server, int plus)
+static int decode_nfs_fh3(struct xdr_stream *xdr, struct nfs_fh *fh)
{
+ u32 length;
__be32 *p;
- struct nfs_entry old = *entry;
p = xdr_inline_decode(xdr, 4);
- if (unlikely(!p))
- goto out_overflow;
- if (!ntohl(*p++)) {
- p = xdr_inline_decode(xdr, 4);
- if (unlikely(!p))
- goto out_overflow;
- if (!ntohl(*p++))
- return ERR_PTR(-EAGAIN);
- entry->eof = 1;
- return ERR_PTR(-EBADCOOKIE);
- }
-
- p = xdr_inline_decode(xdr, 12);
- if (unlikely(!p))
+ if (unlikely(p == NULL))
goto out_overflow;
- p = xdr_decode_hyper(p, &entry->ino);
- entry->len = ntohl(*p++);
-
- p = xdr_inline_decode(xdr, entry->len + 8);
- if (unlikely(!p))
+ length = be32_to_cpup(p++);
+ if (unlikely(length > NFS3_FHSIZE))
+ goto out_toobig;
+ p = xdr_inline_decode(xdr, length);
+ if (unlikely(p == NULL))
goto out_overflow;
- entry->name = (const char *) p;
- p += XDR_QUADLEN(entry->len);
- entry->prev_cookie = entry->cookie;
- p = xdr_decode_hyper(p, &entry->cookie);
-
- entry->d_type = DT_UNKNOWN;
- if (plus) {
- entry->fattr->valid = 0;
- p = xdr_decode_post_op_attr_stream(xdr, entry->fattr);
- if (IS_ERR(p))
- goto out_overflow_exit;
- entry->d_type = nfs_umode_to_dtype(entry->fattr->mode);
- /* In fact, a post_op_fh3: */
- p = xdr_inline_decode(xdr, 4);
- if (unlikely(!p))
- goto out_overflow;
- if (*p++) {
- p = xdr_decode_fhandle_stream(xdr, entry->fh);
- if (IS_ERR(p))
- goto out_overflow_exit;
- /* Ugh -- server reply was truncated */
- if (p == NULL) {
- dprintk("NFS: FH truncated\n");
- *entry = old;
- return ERR_PTR(-EAGAIN);
- }
- } else
- memset((u8*)(entry->fh), 0, sizeof(*entry->fh));
- }
-
- return p;
-
+ fh->size = length;
+ memcpy(fh->data, p, length);
+ return 0;
+out_toobig:
+ dprintk("NFS: file handle size (%u) too big\n", length);
+ return -E2BIG;
out_overflow:
print_overflow_msg(__func__, xdr);
-out_overflow_exit:
- return ERR_PTR(-EAGAIN);
+ return -EIO;
}
-/*
- * Encode COMMIT arguments
- */
-static int
-nfs3_xdr_commitargs(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args)
+static void zero_nfs_fh3(struct nfs_fh *fh)
{
- p = xdr_encode_fhandle(p, args->fh);
- p = xdr_encode_hyper(p, args->offset);
- *p++ = htonl(args->count);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- return 0;
+ memset(fh, 0, sizeof(*fh));
}
-#ifdef CONFIG_NFS_V3_ACL
/*
- * Encode GETACL arguments
+ * nfstime3
+ *
+ * struct nfstime3 {
+ * uint32 seconds;
+ * uint32 nseconds;
+ * };
*/
-static int
-nfs3_xdr_getaclargs(struct rpc_rqst *req, __be32 *p,
- struct nfs3_getaclargs *args)
+static __be32 *xdr_encode_nfstime3(__be32 *p, const struct timespec *timep)
{
- struct rpc_auth *auth = req->rq_cred->cr_auth;
- unsigned int replen;
-
- p = xdr_encode_fhandle(p, args->fh);
- *p++ = htonl(args->mask);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
-
- if (args->mask & (NFS_ACL | NFS_DFACL)) {
- /* Inline the page array */
- replen = (RPC_REPHDRSIZE + auth->au_rslack +
- ACL3_getaclres_sz) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 0,
- NFSACL_MAXPAGES << PAGE_SHIFT);
- }
- return 0;
+ *p++ = cpu_to_be32(timep->tv_sec);
+ *p++ = cpu_to_be32(timep->tv_nsec);
+ return p;
}
-/*
- * Encode SETACL arguments
- */
-static int
-nfs3_xdr_setaclargs(struct rpc_rqst *req, __be32 *p,
- struct nfs3_setaclargs *args)
+static __be32 *xdr_decode_nfstime3(__be32 *p, struct timespec *timep)
{
- struct xdr_buf *buf = &req->rq_snd_buf;
- unsigned int base;
- int err;
-
- p = xdr_encode_fhandle(p, NFS_FH(args->inode));
- *p++ = htonl(args->mask);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
- base = req->rq_slen;
-
- if (args->npages != 0)
- xdr_encode_pages(buf, args->pages, 0, args->len);
- else
- req->rq_slen = xdr_adjust_iovec(req->rq_svec,
- p + XDR_QUADLEN(args->len));
-
- err = nfsacl_encode(buf, base, args->inode,
- (args->mask & NFS_ACL) ?
- args->acl_access : NULL, 1, 0);
- if (err > 0)
- err = nfsacl_encode(buf, base + err, args->inode,
- (args->mask & NFS_DFACL) ?
- args->acl_default : NULL, 1,
- NFS_ACL_DEFAULT);
- return (err > 0) ? 0 : err;
+ timep->tv_sec = be32_to_cpup(p++);
+ timep->tv_nsec = be32_to_cpup(p++);
+ return p;
}
-#endif /* CONFIG_NFS_V3_ACL */
/*
- * NFS XDR decode functions
- */
-
-/*
- * Decode attrstat reply.
+ * sattr3
+ *
+ * enum time_how {
+ * DONT_CHANGE = 0,
+ * SET_TO_SERVER_TIME = 1,
+ * SET_TO_CLIENT_TIME = 2
+ * };
+ *
+ * union set_mode3 switch (bool set_it) {
+ * case TRUE:
+ * mode3 mode;
+ * default:
+ * void;
+ * };
+ *
+ * union set_uid3 switch (bool set_it) {
+ * case TRUE:
+ * uid3 uid;
+ * default:
+ * void;
+ * };
+ *
+ * union set_gid3 switch (bool set_it) {
+ * case TRUE:
+ * gid3 gid;
+ * default:
+ * void;
+ * };
+ *
+ * union set_size3 switch (bool set_it) {
+ * case TRUE:
+ * size3 size;
+ * default:
+ * void;
+ * };
+ *
+ * union set_atime switch (time_how set_it) {
+ * case SET_TO_CLIENT_TIME:
+ * nfstime3 atime;
+ * default:
+ * void;
+ * };
+ *
+ * union set_mtime switch (time_how set_it) {
+ * case SET_TO_CLIENT_TIME:
+ * nfstime3 mtime;
+ * default:
+ * void;
+ * };
+ *
+ * struct sattr3 {
+ * set_mode3 mode;
+ * set_uid3 uid;
+ * set_gid3 gid;
+ * set_size3 size;
+ * set_atime atime;
+ * set_mtime mtime;
+ * };
*/
-static int
-nfs3_xdr_attrstat(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr)
+static void encode_sattr3(struct xdr_stream *xdr, const struct iattr *attr)
{
- int status;
+ u32 nbytes;
+ __be32 *p;
- if ((status = ntohl(*p++)))
- return nfs_stat_to_errno(status);
- xdr_decode_fattr(p, fattr);
+ /*
+ * In order to make only a single xdr_reserve_space() call,
+ * pre-compute the total number of bytes to be reserved.
+ * Six boolean values, one for each set_foo field, are always
+ * present in the encoded result, so start there.
+ */
+ nbytes = 6 * 4;
+ if (attr->ia_valid & ATTR_MODE)
+ nbytes += 4;
+ if (attr->ia_valid & ATTR_UID)
+ nbytes += 4;
+ if (attr->ia_valid & ATTR_GID)
+ nbytes += 4;
+ if (attr->ia_valid & ATTR_SIZE)
+ nbytes += 8;
+ if (attr->ia_valid & ATTR_ATIME_SET)
+ nbytes += 8;
+ if (attr->ia_valid & ATTR_MTIME_SET)
+ nbytes += 8;
+ p = xdr_reserve_space(xdr, nbytes);
+
+ if (attr->ia_valid & ATTR_MODE) {
+ *p++ = xdr_one;
+ *p++ = cpu_to_be32(attr->ia_mode & S_IALLUGO);
+ } else
+ *p++ = xdr_zero;
+
+ if (attr->ia_valid & ATTR_UID) {
+ *p++ = xdr_one;
+ *p++ = cpu_to_be32(attr->ia_uid);
+ } else
+ *p++ = xdr_zero;
+
+ if (attr->ia_valid & ATTR_GID) {
+ *p++ = xdr_one;
+ *p++ = cpu_to_be32(attr->ia_gid);
+ } else
+ *p++ = xdr_zero;
+
+ if (attr->ia_valid & ATTR_SIZE) {
+ *p++ = xdr_one;
+ p = xdr_encode_hyper(p, (u64)attr->ia_size);
+ } else
+ *p++ = xdr_zero;
+
+ if (attr->ia_valid & ATTR_ATIME_SET) {
+ *p++ = xdr_two;
+ p = xdr_encode_nfstime3(p, &attr->ia_atime);
+ } else if (attr->ia_valid & ATTR_ATIME) {
+ *p++ = xdr_one;
+ } else
+ *p++ = xdr_zero;
+
+ if (attr->ia_valid & ATTR_MTIME_SET) {
+ *p++ = xdr_two;
+ xdr_encode_nfstime3(p, &attr->ia_mtime);
+ } else if (attr->ia_valid & ATTR_MTIME) {
+ *p = xdr_one;
+ } else
+ *p = xdr_zero;
+}
+
+/*
+ * fattr3
+ *
+ * struct fattr3 {
+ * ftype3 type;
+ * mode3 mode;
+ * uint32 nlink;
+ * uid3 uid;
+ * gid3 gid;
+ * size3 size;
+ * size3 used;
+ * specdata3 rdev;
+ * uint64 fsid;
+ * fileid3 fileid;
+ * nfstime3 atime;
+ * nfstime3 mtime;
+ * nfstime3 ctime;
+ * };
+ */
+static int decode_fattr3(struct xdr_stream *xdr, struct nfs_fattr *fattr)
+{
+ umode_t fmode;
+ __be32 *p;
+
+ p = xdr_inline_decode(xdr, NFS3_fattr_sz << 2);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+
+ p = xdr_decode_ftype3(p, &fmode);
+
+ fattr->mode = (be32_to_cpup(p++) & ~S_IFMT) | fmode;
+ fattr->nlink = be32_to_cpup(p++);
+ fattr->uid = be32_to_cpup(p++);
+ fattr->gid = be32_to_cpup(p++);
+
+ p = xdr_decode_size3(p, &fattr->size);
+ p = xdr_decode_size3(p, &fattr->du.nfs3.used);
+ p = xdr_decode_specdata3(p, &fattr->rdev);
+
+ p = xdr_decode_hyper(p, &fattr->fsid.major);
+ fattr->fsid.minor = 0;
+
+ p = xdr_decode_fileid3(p, &fattr->fileid);
+ p = xdr_decode_nfstime3(p, &fattr->atime);
+ p = xdr_decode_nfstime3(p, &fattr->mtime);
+ xdr_decode_nfstime3(p, &fattr->ctime);
+
+ fattr->valid |= NFS_ATTR_FATTR_V3;
return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
}
/*
- * Decode status+wcc_data reply
- * SATTR, REMOVE, RMDIR
+ * post_op_attr
+ *
+ * union post_op_attr switch (bool attributes_follow) {
+ * case TRUE:
+ * fattr3 attributes;
+ * case FALSE:
+ * void;
+ * };
*/
-static int
-nfs3_xdr_wccstat(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr)
+static int decode_post_op_attr(struct xdr_stream *xdr, struct nfs_fattr *fattr)
{
- int status;
+ __be32 *p;
- if ((status = ntohl(*p++)))
- status = nfs_stat_to_errno(status);
- xdr_decode_wcc_data(p, fattr);
- return status;
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ if (*p != xdr_zero)
+ return decode_fattr3(xdr, fattr);
+ return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+}
+
+/*
+ * wcc_attr
+ * struct wcc_attr {
+ * size3 size;
+ * nfstime3 mtime;
+ * nfstime3 ctime;
+ * };
+ */
+static int decode_wcc_attr(struct xdr_stream *xdr, struct nfs_fattr *fattr)
+{
+ __be32 *p;
+
+ p = xdr_inline_decode(xdr, NFS3_wcc_attr_sz << 2);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+
+ fattr->valid |= NFS_ATTR_FATTR_PRESIZE
+ | NFS_ATTR_FATTR_PREMTIME
+ | NFS_ATTR_FATTR_PRECTIME;
+
+ p = xdr_decode_size3(p, &fattr->pre_size);
+ p = xdr_decode_nfstime3(p, &fattr->pre_mtime);
+ xdr_decode_nfstime3(p, &fattr->pre_ctime);
+
+ return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+}
+
+/*
+ * pre_op_attr
+ * union pre_op_attr switch (bool attributes_follow) {
+ * case TRUE:
+ * wcc_attr attributes;
+ * case FALSE:
+ * void;
+ * };
+ *
+ * wcc_data
+ *
+ * struct wcc_data {
+ * pre_op_attr before;
+ * post_op_attr after;
+ * };
+ */
+static int decode_pre_op_attr(struct xdr_stream *xdr, struct nfs_fattr *fattr)
+{
+ __be32 *p;
+
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ if (*p != xdr_zero)
+ return decode_wcc_attr(xdr, fattr);
+ return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+}
+
+static int decode_wcc_data(struct xdr_stream *xdr, struct nfs_fattr *fattr)
+{
+ int error;
+
+ error = decode_pre_op_attr(xdr, fattr);
+ if (unlikely(error))
+ goto out;
+ error = decode_post_op_attr(xdr, fattr);
+out:
+ return error;
+}
+
+/*
+ * post_op_fh3
+ *
+ * union post_op_fh3 switch (bool handle_follows) {
+ * case TRUE:
+ * nfs_fh3 handle;
+ * case FALSE:
+ * void;
+ * };
+ */
+static int decode_post_op_fh3(struct xdr_stream *xdr, struct nfs_fh *fh)
+{
+ __be32 *p = xdr_inline_decode(xdr, 4);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ if (*p != xdr_zero)
+ return decode_nfs_fh3(xdr, fh);
+ zero_nfs_fh3(fh);
+ return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+}
+
+/*
+ * diropargs3
+ *
+ * struct diropargs3 {
+ * nfs_fh3 dir;
+ * filename3 name;
+ * };
+ */
+static void encode_diropargs3(struct xdr_stream *xdr, const struct nfs_fh *fh,
+ const char *name, u32 length)
+{
+ encode_nfs_fh3(xdr, fh);
+ encode_filename3(xdr, name, length);
}
-static int
-nfs3_xdr_removeres(struct rpc_rqst *req, __be32 *p, struct nfs_removeres *res)
+
+/*
+ * NFSv3 XDR encode functions
+ *
+ * NFSv3 argument types are defined in section 3.3 of RFC 1813:
+ * "NFS Version 3 Protocol Specification".
+ */
+
+/*
+ * 3.3.1 GETATTR3args
+ *
+ * struct GETATTR3args {
+ * nfs_fh3 object;
+ * };
+ */
+static void nfs3_xdr_enc_getattr3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_fh *fh)
{
- return nfs3_xdr_wccstat(req, p, res->dir_attr);
+ encode_nfs_fh3(xdr, fh);
}
/*
- * Decode LOOKUP reply
+ * 3.3.2 SETATTR3args
+ *
+ * union sattrguard3 switch (bool check) {
+ * case TRUE:
+ * nfstime3 obj_ctime;
+ * case FALSE:
+ * void;
+ * };
+ *
+ * struct SETATTR3args {
+ * nfs_fh3 object;
+ * sattr3 new_attributes;
+ * sattrguard3 guard;
+ * };
*/
-static int
-nfs3_xdr_lookupres(struct rpc_rqst *req, __be32 *p, struct nfs3_diropres *res)
+static void encode_sattrguard3(struct xdr_stream *xdr,
+ const struct nfs3_sattrargs *args)
{
- int status;
+ __be32 *p;
- if ((status = ntohl(*p++))) {
- status = nfs_stat_to_errno(status);
+ if (args->guard) {
+ p = xdr_reserve_space(xdr, 4 + 8);
+ *p++ = xdr_one;
+ xdr_encode_nfstime3(p, &args->guardtime);
} else {
- if (!(p = xdr_decode_fhandle(p, res->fh)))
- return -errno_NFSERR_IO;
- p = xdr_decode_post_op_attr(p, res->fattr);
+ p = xdr_reserve_space(xdr, 4);
+ *p = xdr_zero;
}
- xdr_decode_post_op_attr(p, res->dir_attr);
- return status;
+}
+
+static void nfs3_xdr_enc_setattr3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs3_sattrargs *args)
+{
+ encode_nfs_fh3(xdr, args->fh);
+ encode_sattr3(xdr, args->sattr);
+ encode_sattrguard3(xdr, args);
}
/*
- * Decode ACCESS reply
+ * 3.3.3 LOOKUP3args
+ *
+ * struct LOOKUP3args {
+ * diropargs3 what;
+ * };
*/
-static int
-nfs3_xdr_accessres(struct rpc_rqst *req, __be32 *p, struct nfs3_accessres *res)
+static void nfs3_xdr_enc_lookup3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs3_diropargs *args)
{
- int status = ntohl(*p++);
+ encode_diropargs3(xdr, args->fh, args->name, args->len);
+}
- p = xdr_decode_post_op_attr(p, res->fattr);
- if (status)
- return nfs_stat_to_errno(status);
- res->access = ntohl(*p++);
- return 0;
+/*
+ * 3.3.4 ACCESS3args
+ *
+ * struct ACCESS3args {
+ * nfs_fh3 object;
+ * uint32 access;
+ * };
+ */
+static void encode_access3args(struct xdr_stream *xdr,
+ const struct nfs3_accessargs *args)
+{
+ encode_nfs_fh3(xdr, args->fh);
+ encode_uint32(xdr, args->access);
}
-static int
-nfs3_xdr_readlinkargs(struct rpc_rqst *req, __be32 *p, struct nfs3_readlinkargs *args)
+static void nfs3_xdr_enc_access3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs3_accessargs *args)
{
- struct rpc_auth *auth = req->rq_cred->cr_auth;
- unsigned int replen;
+ encode_access3args(xdr, args);
+}
- p = xdr_encode_fhandle(p, args->fh);
- req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+/*
+ * 3.3.5 READLINK3args
+ *
+ * struct READLINK3args {
+ * nfs_fh3 symlink;
+ * };
+ */
+static void nfs3_xdr_enc_readlink3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs3_readlinkargs *args)
+{
+ encode_nfs_fh3(xdr, args->fh);
+ prepare_reply_buffer(req, args->pages, args->pgbase,
+ args->pglen, NFS3_readlinkres_sz);
+}
- /* Inline the page array */
- replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS3_readlinkres_sz) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, args->pgbase, args->pglen);
- return 0;
+/*
+ * 3.3.6 READ3args
+ *
+ * struct READ3args {
+ * nfs_fh3 file;
+ * offset3 offset;
+ * count3 count;
+ * };
+ */
+static void encode_read3args(struct xdr_stream *xdr,
+ const struct nfs_readargs *args)
+{
+ __be32 *p;
+
+ encode_nfs_fh3(xdr, args->fh);
+
+ p = xdr_reserve_space(xdr, 8 + 4);
+ p = xdr_encode_hyper(p, args->offset);
+ *p = cpu_to_be32(args->count);
+}
+
+static void nfs3_xdr_enc_read3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_readargs *args)
+{
+ encode_read3args(xdr, args);
+ prepare_reply_buffer(req, args->pages, args->pgbase,
+ args->count, NFS3_readres_sz);
+ req->rq_rcv_buf.flags |= XDRBUF_READ;
}
/*
- * Decode READLINK reply
+ * 3.3.7 WRITE3args
+ *
+ * enum stable_how {
+ * UNSTABLE = 0,
+ * DATA_SYNC = 1,
+ * FILE_SYNC = 2
+ * };
+ *
+ * struct WRITE3args {
+ * nfs_fh3 file;
+ * offset3 offset;
+ * count3 count;
+ * stable_how stable;
+ * opaque data<>;
+ * };
*/
-static int
-nfs3_xdr_readlinkres(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr)
+static void encode_write3args(struct xdr_stream *xdr,
+ const struct nfs_writeargs *args)
{
- struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
- struct kvec *iov = rcvbuf->head;
- size_t hdrlen;
- u32 len, recvd;
- int status;
+ __be32 *p;
- status = ntohl(*p++);
- p = xdr_decode_post_op_attr(p, fattr);
+ encode_nfs_fh3(xdr, args->fh);
- if (status != 0)
- return nfs_stat_to_errno(status);
+ p = xdr_reserve_space(xdr, 8 + 4 + 4 + 4);
+ p = xdr_encode_hyper(p, args->offset);
+ *p++ = cpu_to_be32(args->count);
+ *p++ = cpu_to_be32(args->stable);
+ *p = cpu_to_be32(args->count);
+ xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
+}
- /* Convert length of symlink */
- len = ntohl(*p++);
- if (len >= rcvbuf->page_len) {
- dprintk("nfs: server returned giant symlink!\n");
- return -ENAMETOOLONG;
- }
+static void nfs3_xdr_enc_write3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_writeargs *args)
+{
+ encode_write3args(xdr, args);
+ xdr->buf->flags |= XDRBUF_WRITE;
+}
- hdrlen = (u8 *) p - (u8 *) iov->iov_base;
- if (iov->iov_len < hdrlen) {
- dprintk("NFS: READLINK reply header overflowed:"
- "length %Zu > %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) {
- dprintk("NFS: server cheating in readlink reply: "
- "count %u > recvd %u\n", len, recvd);
- return -EIO;
+/*
+ * 3.3.8 CREATE3args
+ *
+ * enum createmode3 {
+ * UNCHECKED = 0,
+ * GUARDED = 1,
+ * EXCLUSIVE = 2
+ * };
+ *
+ * union createhow3 switch (createmode3 mode) {
+ * case UNCHECKED:
+ * case GUARDED:
+ * sattr3 obj_attributes;
+ * case EXCLUSIVE:
+ * createverf3 verf;
+ * };
+ *
+ * struct CREATE3args {
+ * diropargs3 where;
+ * createhow3 how;
+ * };
+ */
+static void encode_createhow3(struct xdr_stream *xdr,
+ const struct nfs3_createargs *args)
+{
+ encode_uint32(xdr, args->createmode);
+ switch (args->createmode) {
+ case NFS3_CREATE_UNCHECKED:
+ case NFS3_CREATE_GUARDED:
+ encode_sattr3(xdr, args->sattr);
+ break;
+ case NFS3_CREATE_EXCLUSIVE:
+ encode_createverf3(xdr, args->verifier);
+ break;
+ default:
+ BUG();
}
+}
- xdr_terminate_string(rcvbuf, len);
- return 0;
+static void nfs3_xdr_enc_create3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs3_createargs *args)
+{
+ encode_diropargs3(xdr, args->fh, args->name, args->len);
+ encode_createhow3(xdr, args);
}
/*
- * Decode READ reply
+ * 3.3.9 MKDIR3args
+ *
+ * struct MKDIR3args {
+ * diropargs3 where;
+ * sattr3 attributes;
+ * };
*/
-static int
-nfs3_xdr_readres(struct rpc_rqst *req, __be32 *p, struct nfs_readres *res)
+static void nfs3_xdr_enc_mkdir3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs3_mkdirargs *args)
{
- struct kvec *iov = req->rq_rcv_buf.head;
- size_t hdrlen;
- u32 count, ocount, recvd;
- int status;
+ encode_diropargs3(xdr, args->fh, args->name, args->len);
+ encode_sattr3(xdr, args->sattr);
+}
- status = ntohl(*p++);
- p = xdr_decode_post_op_attr(p, res->fattr);
+/*
+ * 3.3.10 SYMLINK3args
+ *
+ * struct symlinkdata3 {
+ * sattr3 symlink_attributes;
+ * nfspath3 symlink_data;
+ * };
+ *
+ * struct SYMLINK3args {
+ * diropargs3 where;
+ * symlinkdata3 symlink;
+ * };
+ */
+static void encode_symlinkdata3(struct xdr_stream *xdr,
+ const struct nfs3_symlinkargs *args)
+{
+ encode_sattr3(xdr, args->sattr);
+ encode_nfspath3(xdr, args->pages, args->pathlen);
+}
- if (status != 0)
- return nfs_stat_to_errno(status);
+static void nfs3_xdr_enc_symlink3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs3_symlinkargs *args)
+{
+ encode_diropargs3(xdr, args->fromfh, args->fromname, args->fromlen);
+ encode_symlinkdata3(xdr, args);
+}
- /* Decode reply count and EOF flag. NFSv3 is somewhat redundant
- * in that it puts the count both in the res struct and in the
- * opaque data count. */
- count = ntohl(*p++);
- res->eof = ntohl(*p++);
- ocount = ntohl(*p++);
+/*
+ * 3.3.11 MKNOD3args
+ *
+ * struct devicedata3 {
+ * sattr3 dev_attributes;
+ * specdata3 spec;
+ * };
+ *
+ * union mknoddata3 switch (ftype3 type) {
+ * case NF3CHR:
+ * case NF3BLK:
+ * devicedata3 device;
+ * case NF3SOCK:
+ * case NF3FIFO:
+ * sattr3 pipe_attributes;
+ * default:
+ * void;
+ * };
+ *
+ * struct MKNOD3args {
+ * diropargs3 where;
+ * mknoddata3 what;
+ * };
+ */
+static void encode_devicedata3(struct xdr_stream *xdr,
+ const struct nfs3_mknodargs *args)
+{
+ encode_sattr3(xdr, args->sattr);
+ encode_specdata3(xdr, args->rdev);
+}
- if (ocount != count) {
- dprintk("NFS: READ count doesn't match RPC opaque count.\n");
- return -errno_NFSERR_IO;
+static void encode_mknoddata3(struct xdr_stream *xdr,
+ const struct nfs3_mknodargs *args)
+{
+ encode_ftype3(xdr, args->type);
+ switch (args->type) {
+ case NF3CHR:
+ case NF3BLK:
+ encode_devicedata3(xdr, args);
+ break;
+ case NF3SOCK:
+ case NF3FIFO:
+ encode_sattr3(xdr, args->sattr);
+ break;
+ case NF3REG:
+ case NF3DIR:
+ break;
+ default:
+ BUG();
}
+}
- hdrlen = (u8 *) p - (u8 *) iov->iov_base;
- if (iov->iov_len < hdrlen) {
- dprintk("NFS: READ reply header overflowed:"
- "length %Zu > %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);
- }
+static void nfs3_xdr_enc_mknod3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs3_mknodargs *args)
+{
+ encode_diropargs3(xdr, args->fh, args->name, args->len);
+ encode_mknoddata3(xdr, args);
+}
- recvd = req->rq_rcv_buf.len - hdrlen;
- if (count > recvd) {
- dprintk("NFS: server cheating in read reply: "
- "count %u > recvd %u\n", count, recvd);
- count = recvd;
- res->eof = 0;
- }
+/*
+ * 3.3.12 REMOVE3args
+ *
+ * struct REMOVE3args {
+ * diropargs3 object;
+ * };
+ */
+static void nfs3_xdr_enc_remove3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_removeargs *args)
+{
+ encode_diropargs3(xdr, args->fh, args->name.name, args->name.len);
+}
- if (count < res->count)
- res->count = count;
+/*
+ * 3.3.14 RENAME3args
+ *
+ * struct RENAME3args {
+ * diropargs3 from;
+ * diropargs3 to;
+ * };
+ */
+static void nfs3_xdr_enc_rename3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_renameargs *args)
+{
+ const struct qstr *old = args->old_name;
+ const struct qstr *new = args->new_name;
- return count;
+ encode_diropargs3(xdr, args->old_dir, old->name, old->len);
+ encode_diropargs3(xdr, args->new_dir, new->name, new->len);
}
/*
- * Decode WRITE response
+ * 3.3.15 LINK3args
+ *
+ * struct LINK3args {
+ * nfs_fh3 file;
+ * diropargs3 link;
+ * };
*/
-static int
-nfs3_xdr_writeres(struct rpc_rqst *req, __be32 *p, struct nfs_writeres *res)
+static void nfs3_xdr_enc_link3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs3_linkargs *args)
{
- int status;
+ encode_nfs_fh3(xdr, args->fromfh);
+ encode_diropargs3(xdr, args->tofh, args->toname, args->tolen);
+}
- status = ntohl(*p++);
- p = xdr_decode_wcc_data(p, res->fattr);
+/*
+ * 3.3.16 READDIR3args
+ *
+ * struct READDIR3args {
+ * nfs_fh3 dir;
+ * cookie3 cookie;
+ * cookieverf3 cookieverf;
+ * count3 count;
+ * };
+ */
+static void encode_readdir3args(struct xdr_stream *xdr,
+ const struct nfs3_readdirargs *args)
+{
+ __be32 *p;
- if (status != 0)
- return nfs_stat_to_errno(status);
+ encode_nfs_fh3(xdr, args->fh);
- res->count = ntohl(*p++);
- res->verf->committed = (enum nfs3_stable_how)ntohl(*p++);
- res->verf->verifier[0] = *p++;
- res->verf->verifier[1] = *p++;
+ p = xdr_reserve_space(xdr, 8 + NFS3_COOKIEVERFSIZE + 4);
+ p = xdr_encode_cookie3(p, args->cookie);
+ p = xdr_encode_cookieverf3(p, args->verf);
+ *p = cpu_to_be32(args->count);
+}
- return res->count;
+static void nfs3_xdr_enc_readdir3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs3_readdirargs *args)
+{
+ encode_readdir3args(xdr, args);
+ prepare_reply_buffer(req, args->pages, 0,
+ args->count, NFS3_readdirres_sz);
}
/*
- * Decode a CREATE response
+ * 3.3.17 READDIRPLUS3args
+ *
+ * struct READDIRPLUS3args {
+ * nfs_fh3 dir;
+ * cookie3 cookie;
+ * cookieverf3 cookieverf;
+ * count3 dircount;
+ * count3 maxcount;
+ * };
*/
-static int
-nfs3_xdr_createres(struct rpc_rqst *req, __be32 *p, struct nfs3_diropres *res)
-{
- int status;
-
- status = ntohl(*p++);
- if (status == 0) {
- if (*p++) {
- if (!(p = xdr_decode_fhandle(p, res->fh)))
- return -errno_NFSERR_IO;
- p = xdr_decode_post_op_attr(p, res->fattr);
- } else {
- memset(res->fh, 0, sizeof(*res->fh));
- /* Do decode post_op_attr but set it to NULL */
- p = xdr_decode_post_op_attr(p, res->fattr);
- res->fattr->valid = 0;
- }
- } else {
- status = nfs_stat_to_errno(status);
- }
- p = xdr_decode_wcc_data(p, res->dir_attr);
- return status;
+static void encode_readdirplus3args(struct xdr_stream *xdr,
+ const struct nfs3_readdirargs *args)
+{
+ __be32 *p;
+
+ encode_nfs_fh3(xdr, args->fh);
+
+ p = xdr_reserve_space(xdr, 8 + NFS3_COOKIEVERFSIZE + 4 + 4);
+ p = xdr_encode_cookie3(p, args->cookie);
+ p = xdr_encode_cookieverf3(p, args->verf);
+
+ /*
+ * readdirplus: need dircount + buffer size.
+ * We just make sure we make dircount big enough
+ */
+ *p++ = cpu_to_be32(args->count >> 3);
+
+ *p = cpu_to_be32(args->count);
+}
+
+static void nfs3_xdr_enc_readdirplus3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs3_readdirargs *args)
+{
+ encode_readdirplus3args(xdr, args);
+ prepare_reply_buffer(req, args->pages, 0,
+ args->count, NFS3_readdirres_sz);
}
/*
- * Decode RENAME reply
+ * 3.3.21 COMMIT3args
+ *
+ * struct COMMIT3args {
+ * nfs_fh3 file;
+ * offset3 offset;
+ * count3 count;
+ * };
*/
-static int
-nfs3_xdr_renameres(struct rpc_rqst *req, __be32 *p, struct nfs_renameres *res)
+static void encode_commit3args(struct xdr_stream *xdr,
+ const struct nfs_writeargs *args)
{
- int status;
+ __be32 *p;
+
+ encode_nfs_fh3(xdr, args->fh);
+
+ p = xdr_reserve_space(xdr, 8 + 4);
+ p = xdr_encode_hyper(p, args->offset);
+ *p = cpu_to_be32(args->count);
+}
- if ((status = ntohl(*p++)) != 0)
- status = nfs_stat_to_errno(status);
- p = xdr_decode_wcc_data(p, res->old_fattr);
- p = xdr_decode_wcc_data(p, res->new_fattr);
- return status;
+static void nfs3_xdr_enc_commit3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs_writeargs *args)
+{
+ encode_commit3args(xdr, args);
}
+#ifdef CONFIG_NFS_V3_ACL
+
+static void nfs3_xdr_enc_getacl3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs3_getaclargs *args)
+{
+ encode_nfs_fh3(xdr, args->fh);
+ encode_uint32(xdr, args->mask);
+ if (args->mask & (NFS_ACL | NFS_DFACL))
+ prepare_reply_buffer(req, args->pages, 0,
+ NFSACL_MAXPAGES << PAGE_SHIFT,
+ ACL3_getaclres_sz);
+}
+
+static void nfs3_xdr_enc_setacl3args(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs3_setaclargs *args)
+{
+ unsigned int base;
+ int error;
+
+ encode_nfs_fh3(xdr, NFS_FH(args->inode));
+ encode_uint32(xdr, args->mask);
+ if (args->npages != 0)
+ xdr_write_pages(xdr, args->pages, 0, args->len);
+
+ base = req->rq_slen;
+ error = nfsacl_encode(xdr->buf, base, args->inode,
+ (args->mask & NFS_ACL) ?
+ args->acl_access : NULL, 1, 0);
+ BUG_ON(error < 0);
+ error = nfsacl_encode(xdr->buf, base + error, args->inode,
+ (args->mask & NFS_DFACL) ?
+ args->acl_default : NULL, 1,
+ NFS_ACL_DEFAULT);
+ BUG_ON(error < 0);
+}
+
+#endif /* CONFIG_NFS_V3_ACL */
+
/*
- * Decode LINK reply
+ * NFSv3 XDR decode functions
+ *
+ * NFSv3 result types are defined in section 3.3 of RFC 1813:
+ * "NFS Version 3 Protocol Specification".
*/
-static int
-nfs3_xdr_linkres(struct rpc_rqst *req, __be32 *p, struct nfs3_linkres *res)
+
+/*
+ * 3.3.1 GETATTR3res
+ *
+ * struct GETATTR3resok {
+ * fattr3 obj_attributes;
+ * };
+ *
+ * union GETATTR3res switch (nfsstat3 status) {
+ * case NFS3_OK:
+ * GETATTR3resok resok;
+ * default:
+ * void;
+ * };
+ */
+static int nfs3_xdr_dec_getattr3res(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs_fattr *result)
{
- int status;
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_default;
+ error = decode_fattr3(xdr, result);
+out:
+ return error;
+out_default:
+ return nfs_stat_to_errno(status);
+}
- if ((status = ntohl(*p++)) != 0)
- status = nfs_stat_to_errno(status);
- p = xdr_decode_post_op_attr(p, res->fattr);
- p = xdr_decode_wcc_data(p, res->dir_attr);
- return status;
+/*
+ * 3.3.2 SETATTR3res
+ *
+ * struct SETATTR3resok {
+ * wcc_data obj_wcc;
+ * };
+ *
+ * struct SETATTR3resfail {
+ * wcc_data obj_wcc;
+ * };
+ *
+ * union SETATTR3res switch (nfsstat3 status) {
+ * case NFS3_OK:
+ * SETATTR3resok resok;
+ * default:
+ * SETATTR3resfail resfail;
+ * };
+ */
+static int nfs3_xdr_dec_setattr3res(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs_fattr *result)
+{
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ error = decode_wcc_data(xdr, result);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_status;
+out:
+ return error;
+out_status:
+ return nfs_stat_to_errno(status);
}
/*
- * Decode FSSTAT reply
+ * 3.3.3 LOOKUP3res
+ *
+ * struct LOOKUP3resok {
+ * nfs_fh3 object;
+ * post_op_attr obj_attributes;
+ * post_op_attr dir_attributes;
+ * };
+ *
+ * struct LOOKUP3resfail {
+ * post_op_attr dir_attributes;
+ * };
+ *
+ * union LOOKUP3res switch (nfsstat3 status) {
+ * case NFS3_OK:
+ * LOOKUP3resok resok;
+ * default:
+ * LOOKUP3resfail resfail;
+ * };
*/
-static int
-nfs3_xdr_fsstatres(struct rpc_rqst *req, __be32 *p, struct nfs_fsstat *res)
+static int nfs3_xdr_dec_lookup3res(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs3_diropres *result)
{
- int status;
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_default;
+ error = decode_nfs_fh3(xdr, result->fh);
+ if (unlikely(error))
+ goto out;
+ error = decode_post_op_attr(xdr, result->fattr);
+ if (unlikely(error))
+ goto out;
+ error = decode_post_op_attr(xdr, result->dir_attr);
+out:
+ return error;
+out_default:
+ error = decode_post_op_attr(xdr, result->dir_attr);
+ if (unlikely(error))
+ goto out;
+ return nfs_stat_to_errno(status);
+}
- status = ntohl(*p++);
+/*
+ * 3.3.4 ACCESS3res
+ *
+ * struct ACCESS3resok {
+ * post_op_attr obj_attributes;
+ * uint32 access;
+ * };
+ *
+ * struct ACCESS3resfail {
+ * post_op_attr obj_attributes;
+ * };
+ *
+ * union ACCESS3res switch (nfsstat3 status) {
+ * case NFS3_OK:
+ * ACCESS3resok resok;
+ * default:
+ * ACCESS3resfail resfail;
+ * };
+ */
+static int nfs3_xdr_dec_access3res(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs3_accessres *result)
+{
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ error = decode_post_op_attr(xdr, result->fattr);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_default;
+ error = decode_uint32(xdr, &result->access);
+out:
+ return error;
+out_default:
+ return nfs_stat_to_errno(status);
+}
- p = xdr_decode_post_op_attr(p, res->fattr);
- if (status != 0)
- return nfs_stat_to_errno(status);
+/*
+ * 3.3.5 READLINK3res
+ *
+ * struct READLINK3resok {
+ * post_op_attr symlink_attributes;
+ * nfspath3 data;
+ * };
+ *
+ * struct READLINK3resfail {
+ * post_op_attr symlink_attributes;
+ * };
+ *
+ * union READLINK3res switch (nfsstat3 status) {
+ * case NFS3_OK:
+ * READLINK3resok resok;
+ * default:
+ * READLINK3resfail resfail;
+ * };
+ */
+static int nfs3_xdr_dec_readlink3res(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs_fattr *result)
+{
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ error = decode_post_op_attr(xdr, result);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_default;
+ error = decode_nfspath3(xdr);
+out:
+ return error;
+out_default:
+ 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);
+/*
+ * 3.3.6 READ3res
+ *
+ * struct READ3resok {
+ * post_op_attr file_attributes;
+ * count3 count;
+ * bool eof;
+ * opaque data<>;
+ * };
+ *
+ * struct READ3resfail {
+ * post_op_attr file_attributes;
+ * };
+ *
+ * union READ3res switch (nfsstat3 status) {
+ * case NFS3_OK:
+ * READ3resok resok;
+ * default:
+ * READ3resfail resfail;
+ * };
+ */
+static int decode_read3resok(struct xdr_stream *xdr,
+ struct nfs_readres *result)
+{
+ u32 eof, count, ocount, recvd;
+ size_t hdrlen;
+ __be32 *p;
- /* ignore invarsec */
- return 0;
+ p = xdr_inline_decode(xdr, 4 + 4 + 4);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ count = be32_to_cpup(p++);
+ eof = be32_to_cpup(p++);
+ ocount = be32_to_cpup(p++);
+ if (unlikely(ocount != count))
+ goto out_mismatch;
+ hdrlen = (u8 *)xdr->p - (u8 *)xdr->iov->iov_base;
+ recvd = xdr->buf->len - hdrlen;
+ if (unlikely(count > recvd))
+ goto out_cheating;
+
+out:
+ xdr_read_pages(xdr, count);
+ result->eof = eof;
+ result->count = count;
+ return count;
+out_mismatch:
+ dprintk("NFS: READ count doesn't match length of opaque: "
+ "count %u != ocount %u\n", count, ocount);
+ return -EIO;
+out_cheating:
+ dprintk("NFS: server cheating in read result: "
+ "count %u > recvd %u\n", count, recvd);
+ count = recvd;
+ eof = 0;
+ goto out;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+}
+
+static int nfs3_xdr_dec_read3res(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_readres *result)
+{
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ error = decode_post_op_attr(xdr, result->fattr);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_status;
+ error = decode_read3resok(xdr, result);
+out:
+ return error;
+out_status:
+ return nfs_stat_to_errno(status);
}
/*
- * Decode FSINFO reply
+ * 3.3.7 WRITE3res
+ *
+ * enum stable_how {
+ * UNSTABLE = 0,
+ * DATA_SYNC = 1,
+ * FILE_SYNC = 2
+ * };
+ *
+ * struct WRITE3resok {
+ * wcc_data file_wcc;
+ * count3 count;
+ * stable_how committed;
+ * writeverf3 verf;
+ * };
+ *
+ * struct WRITE3resfail {
+ * wcc_data file_wcc;
+ * };
+ *
+ * union WRITE3res switch (nfsstat3 status) {
+ * case NFS3_OK:
+ * WRITE3resok resok;
+ * default:
+ * WRITE3resfail resfail;
+ * };
*/
-static int
-nfs3_xdr_fsinfores(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *res)
+static int decode_write3resok(struct xdr_stream *xdr,
+ struct nfs_writeres *result)
{
- int status;
+ __be32 *p;
- status = ntohl(*p++);
+ p = xdr_inline_decode(xdr, 4 + 4 + NFS3_WRITEVERFSIZE);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ result->count = be32_to_cpup(p++);
+ result->verf->committed = be32_to_cpup(p++);
+ if (unlikely(result->verf->committed > NFS_FILE_SYNC))
+ goto out_badvalue;
+ memcpy(result->verf->verifier, p, NFS3_WRITEVERFSIZE);
+ return result->count;
+out_badvalue:
+ dprintk("NFS: bad stable_how value: %u\n", result->verf->committed);
+ return -EIO;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+}
- p = xdr_decode_post_op_attr(p, res->fattr);
- if (status != 0)
- return nfs_stat_to_errno(status);
+static int nfs3_xdr_dec_write3res(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_writeres *result)
+{
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ error = decode_wcc_data(xdr, result->fattr);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_status;
+ error = decode_write3resok(xdr, result);
+out:
+ return error;
+out_status:
+ 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);
+/*
+ * 3.3.8 CREATE3res
+ *
+ * struct CREATE3resok {
+ * post_op_fh3 obj;
+ * post_op_attr obj_attributes;
+ * wcc_data dir_wcc;
+ * };
+ *
+ * struct CREATE3resfail {
+ * wcc_data dir_wcc;
+ * };
+ *
+ * union CREATE3res switch (nfsstat3 status) {
+ * case NFS3_OK:
+ * CREATE3resok resok;
+ * default:
+ * CREATE3resfail resfail;
+ * };
+ */
+static int decode_create3resok(struct xdr_stream *xdr,
+ struct nfs3_diropres *result)
+{
+ int error;
+
+ error = decode_post_op_fh3(xdr, result->fh);
+ if (unlikely(error))
+ goto out;
+ error = decode_post_op_attr(xdr, result->fattr);
+ if (unlikely(error))
+ goto out;
+ /* The server isn't required to return a file handle.
+ * If it didn't, force the client to perform a LOOKUP
+ * to determine the correct file handle and attribute
+ * values for the new object. */
+ if (result->fh->size == 0)
+ result->fattr->valid = 0;
+ error = decode_wcc_data(xdr, result->dir_attr);
+out:
+ return error;
+}
- /* ignore properties */
- res->lease_time = 0;
- return 0;
+static int nfs3_xdr_dec_create3res(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs3_diropres *result)
+{
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_default;
+ error = decode_create3resok(xdr, result);
+out:
+ return error;
+out_default:
+ error = decode_wcc_data(xdr, result->dir_attr);
+ if (unlikely(error))
+ goto out;
+ return nfs_stat_to_errno(status);
}
/*
- * Decode PATHCONF reply
+ * 3.3.12 REMOVE3res
+ *
+ * struct REMOVE3resok {
+ * wcc_data dir_wcc;
+ * };
+ *
+ * struct REMOVE3resfail {
+ * wcc_data dir_wcc;
+ * };
+ *
+ * union REMOVE3res switch (nfsstat3 status) {
+ * case NFS3_OK:
+ * REMOVE3resok resok;
+ * default:
+ * REMOVE3resfail resfail;
+ * };
*/
-static int
-nfs3_xdr_pathconfres(struct rpc_rqst *req, __be32 *p, struct nfs_pathconf *res)
+static int nfs3_xdr_dec_remove3res(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs_removeres *result)
{
- int status;
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ error = decode_wcc_data(xdr, result->dir_attr);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_status;
+out:
+ return error;
+out_status:
+ return nfs_stat_to_errno(status);
+}
- status = ntohl(*p++);
+/*
+ * 3.3.14 RENAME3res
+ *
+ * struct RENAME3resok {
+ * wcc_data fromdir_wcc;
+ * wcc_data todir_wcc;
+ * };
+ *
+ * struct RENAME3resfail {
+ * wcc_data fromdir_wcc;
+ * wcc_data todir_wcc;
+ * };
+ *
+ * union RENAME3res switch (nfsstat3 status) {
+ * case NFS3_OK:
+ * RENAME3resok resok;
+ * default:
+ * RENAME3resfail resfail;
+ * };
+ */
+static int nfs3_xdr_dec_rename3res(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs_renameres *result)
+{
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ error = decode_wcc_data(xdr, result->old_fattr);
+ if (unlikely(error))
+ goto out;
+ error = decode_wcc_data(xdr, result->new_fattr);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_status;
+out:
+ return error;
+out_status:
+ return nfs_stat_to_errno(status);
+}
- 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++);
+/*
+ * 3.3.15 LINK3res
+ *
+ * struct LINK3resok {
+ * post_op_attr file_attributes;
+ * wcc_data linkdir_wcc;
+ * };
+ *
+ * struct LINK3resfail {
+ * post_op_attr file_attributes;
+ * wcc_data linkdir_wcc;
+ * };
+ *
+ * union LINK3res switch (nfsstat3 status) {
+ * case NFS3_OK:
+ * LINK3resok resok;
+ * default:
+ * LINK3resfail resfail;
+ * };
+ */
+static int nfs3_xdr_dec_link3res(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs3_linkres *result)
+{
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ error = decode_post_op_attr(xdr, result->fattr);
+ if (unlikely(error))
+ goto out;
+ error = decode_wcc_data(xdr, result->dir_attr);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_status;
+out:
+ return error;
+out_status:
+ return nfs_stat_to_errno(status);
+}
+
+/**
+ * nfs3_decode_dirent - Decode a single NFSv3 directory entry stored in
+ * the local page cache
+ * @xdr: XDR stream where entry resides
+ * @entry: buffer to fill in with entry data
+ * @plus: boolean indicating whether this should be a readdirplus entry
+ *
+ * Returns zero if successful, otherwise a negative errno value is
+ * returned.
+ *
+ * This function is not invoked during READDIR reply decoding, but
+ * rather whenever an application invokes the getdents(2) system call
+ * on a directory already in our cache.
+ *
+ * 3.3.16 entry3
+ *
+ * struct entry3 {
+ * fileid3 fileid;
+ * filename3 name;
+ * cookie3 cookie;
+ * fhandle3 filehandle;
+ * post_op_attr3 attributes;
+ * entry3 *nextentry;
+ * };
+ *
+ * 3.3.17 entryplus3
+ * struct entryplus3 {
+ * fileid3 fileid;
+ * filename3 name;
+ * cookie3 cookie;
+ * post_op_attr name_attributes;
+ * post_op_fh3 name_handle;
+ * entryplus3 *nextentry;
+ * };
+ */
+int nfs3_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
+ int plus)
+{
+ struct nfs_entry old = *entry;
+ __be32 *p;
+ int error;
+
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ if (*p == xdr_zero) {
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ if (*p == xdr_zero)
+ return -EAGAIN;
+ entry->eof = 1;
+ return -EBADCOOKIE;
+ }
+
+ error = decode_fileid3(xdr, &entry->ino);
+ if (unlikely(error))
+ return error;
+
+ error = decode_inline_filename3(xdr, &entry->name, &entry->len);
+ if (unlikely(error))
+ return error;
+
+ entry->prev_cookie = entry->cookie;
+ error = decode_cookie3(xdr, &entry->cookie);
+ if (unlikely(error))
+ return error;
+
+ entry->d_type = DT_UNKNOWN;
+
+ if (plus) {
+ entry->fattr->valid = 0;
+ error = decode_post_op_attr(xdr, entry->fattr);
+ if (unlikely(error))
+ return error;
+ if (entry->fattr->valid & NFS_ATTR_FATTR_V3)
+ entry->d_type = nfs_umode_to_dtype(entry->fattr->mode);
+
+ /* In fact, a post_op_fh3: */
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ if (*p != xdr_zero) {
+ error = decode_nfs_fh3(xdr, entry->fh);
+ if (unlikely(error)) {
+ if (error == -E2BIG)
+ goto out_truncated;
+ return error;
+ }
+ } else
+ zero_nfs_fh3(entry->fh);
+ }
- /* Peek at the next entry to see if we're at EOD */
- p = xdr_inline_peek(xdr, 4 + 4);
- entry->eof = 0;
- if (p != NULL)
- entry->eof = (p[0] == xdr_zero) && (p[1] != xdr_zero);
- /* ignore remaining fields */
return 0;
+
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EAGAIN;
+out_truncated:
+ dprintk("NFS: directory entry contains invalid file handle\n");
+ *entry = old;
+ return -EAGAIN;
}
/*
- * Decode COMMIT reply
+ * 3.3.16 READDIR3res
+ *
+ * struct dirlist3 {
+ * entry3 *entries;
+ * bool eof;
+ * };
+ *
+ * struct READDIR3resok {
+ * post_op_attr dir_attributes;
+ * cookieverf3 cookieverf;
+ * dirlist3 reply;
+ * };
+ *
+ * struct READDIR3resfail {
+ * post_op_attr dir_attributes;
+ * };
+ *
+ * union READDIR3res switch (nfsstat3 status) {
+ * case NFS3_OK:
+ * READDIR3resok resok;
+ * default:
+ * READDIR3resfail resfail;
+ * };
+ *
+ * Read the directory contents into the page cache, but otherwise
+ * don't touch them. The actual decoding is done by nfs3_decode_entry()
+ * during subsequent nfs_readdir() calls.
*/
-static int
-nfs3_xdr_commitres(struct rpc_rqst *req, __be32 *p, struct nfs_writeres *res)
+static int decode_dirlist3(struct xdr_stream *xdr)
+{
+ u32 recvd, pglen;
+ size_t hdrlen;
+
+ pglen = xdr->buf->page_len;
+ hdrlen = (u8 *)xdr->p - (u8 *)xdr->iov->iov_base;
+ recvd = xdr->buf->len - hdrlen;
+ if (unlikely(pglen > recvd))
+ goto out_cheating;
+out:
+ xdr_read_pages(xdr, pglen);
+ return pglen;
+out_cheating:
+ dprintk("NFS: server cheating in readdir result: "
+ "pglen %u > recvd %u\n", pglen, recvd);
+ pglen = recvd;
+ goto out;
+}
+
+static int decode_readdir3resok(struct xdr_stream *xdr,
+ struct nfs3_readdirres *result)
{
- int status;
+ int error;
+
+ error = decode_post_op_attr(xdr, result->dir_attr);
+ if (unlikely(error))
+ goto out;
+ /* XXX: do we need to check if result->verf != NULL ? */
+ error = decode_cookieverf3(xdr, result->verf);
+ if (unlikely(error))
+ goto out;
+ error = decode_dirlist3(xdr);
+out:
+ return error;
+}
- status = ntohl(*p++);
- p = xdr_decode_wcc_data(p, res->fattr);
- if (status != 0)
- return nfs_stat_to_errno(status);
+static int nfs3_xdr_dec_readdir3res(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs3_readdirres *result)
+{
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_default;
+ error = decode_readdir3resok(xdr, result);
+out:
+ return error;
+out_default:
+ error = decode_post_op_attr(xdr, result->dir_attr);
+ if (unlikely(error))
+ goto out;
+ return nfs_stat_to_errno(status);
+}
- res->verf->verifier[0] = *p++;
- res->verf->verifier[1] = *p++;
+/*
+ * 3.3.18 FSSTAT3res
+ *
+ * struct FSSTAT3resok {
+ * post_op_attr obj_attributes;
+ * size3 tbytes;
+ * size3 fbytes;
+ * size3 abytes;
+ * size3 tfiles;
+ * size3 ffiles;
+ * size3 afiles;
+ * uint32 invarsec;
+ * };
+ *
+ * struct FSSTAT3resfail {
+ * post_op_attr obj_attributes;
+ * };
+ *
+ * union FSSTAT3res switch (nfsstat3 status) {
+ * case NFS3_OK:
+ * FSSTAT3resok resok;
+ * default:
+ * FSSTAT3resfail resfail;
+ * };
+ */
+static int decode_fsstat3resok(struct xdr_stream *xdr,
+ struct nfs_fsstat *result)
+{
+ __be32 *p;
+
+ p = xdr_inline_decode(xdr, 8 * 6 + 4);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ p = xdr_decode_size3(p, &result->tbytes);
+ p = xdr_decode_size3(p, &result->fbytes);
+ p = xdr_decode_size3(p, &result->abytes);
+ p = xdr_decode_size3(p, &result->tfiles);
+ p = xdr_decode_size3(p, &result->ffiles);
+ xdr_decode_size3(p, &result->afiles);
+ /* ignore invarsec */
return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+}
+
+static int nfs3_xdr_dec_fsstat3res(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs_fsstat *result)
+{
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ error = decode_post_op_attr(xdr, result->fattr);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_status;
+ error = decode_fsstat3resok(xdr, result);
+out:
+ return error;
+out_status:
+ return nfs_stat_to_errno(status);
}
-#ifdef CONFIG_NFS_V3_ACL
/*
- * Decode GETACL reply
+ * 3.3.19 FSINFO3res
+ *
+ * struct FSINFO3resok {
+ * post_op_attr obj_attributes;
+ * uint32 rtmax;
+ * uint32 rtpref;
+ * uint32 rtmult;
+ * uint32 wtmax;
+ * uint32 wtpref;
+ * uint32 wtmult;
+ * uint32 dtpref;
+ * size3 maxfilesize;
+ * nfstime3 time_delta;
+ * uint32 properties;
+ * };
+ *
+ * struct FSINFO3resfail {
+ * post_op_attr obj_attributes;
+ * };
+ *
+ * union FSINFO3res switch (nfsstat3 status) {
+ * case NFS3_OK:
+ * FSINFO3resok resok;
+ * default:
+ * FSINFO3resfail resfail;
+ * };
*/
-static int
-nfs3_xdr_getaclres(struct rpc_rqst *req, __be32 *p,
- struct nfs3_getaclres *res)
+static int decode_fsinfo3resok(struct xdr_stream *xdr,
+ struct nfs_fsinfo *result)
{
- struct xdr_buf *buf = &req->rq_rcv_buf;
- int status = ntohl(*p++);
- struct posix_acl **acl;
- unsigned int *aclcnt;
- int err, base;
+ __be32 *p;
- 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;
+ p = xdr_inline_decode(xdr, 4 * 7 + 8 + 8 + 4);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ result->rtmax = be32_to_cpup(p++);
+ result->rtpref = be32_to_cpup(p++);
+ result->rtmult = be32_to_cpup(p++);
+ result->wtmax = be32_to_cpup(p++);
+ result->wtpref = be32_to_cpup(p++);
+ result->wtmult = be32_to_cpup(p++);
+ result->dtpref = be32_to_cpup(p++);
+ p = xdr_decode_size3(p, &result->maxfilesize);
+ xdr_decode_nfstime3(p, &result->time_delta);
- 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);
+ /* ignore properties */
+ result->lease_time = 0;
+ return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+}
- 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 int nfs3_xdr_dec_fsinfo3res(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs_fsinfo *result)
+{
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ error = decode_post_op_attr(xdr, result->fattr);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_status;
+ error = decode_fsinfo3resok(xdr, result);
+out:
+ return error;
+out_status:
+ return nfs_stat_to_errno(status);
}
/*
- * Decode setacl reply.
+ * 3.3.20 PATHCONF3res
+ *
+ * struct PATHCONF3resok {
+ * post_op_attr obj_attributes;
+ * uint32 linkmax;
+ * uint32 name_max;
+ * bool no_trunc;
+ * bool chown_restricted;
+ * bool case_insensitive;
+ * bool case_preserving;
+ * };
+ *
+ * struct PATHCONF3resfail {
+ * post_op_attr obj_attributes;
+ * };
+ *
+ * union PATHCONF3res switch (nfsstat3 status) {
+ * case NFS3_OK:
+ * PATHCONF3resok resok;
+ * default:
+ * PATHCONF3resfail resfail;
+ * };
*/
-static int
-nfs3_xdr_setaclres(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr)
+static int decode_pathconf3resok(struct xdr_stream *xdr,
+ struct nfs_pathconf *result)
{
- int status = ntohl(*p++);
+ __be32 *p;
- if (status)
- return nfs_stat_to_errno(status);
- xdr_decode_post_op_attr(p, fattr);
+ p = xdr_inline_decode(xdr, 4 * 6);
+ if (unlikely(p == NULL))
+ goto out_overflow;
+ result->max_link = be32_to_cpup(p++);
+ result->max_namelen = be32_to_cpup(p);
+ /* ignore remaining fields */
return 0;
+out_overflow:
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+}
+
+static int nfs3_xdr_dec_pathconf3res(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs_pathconf *result)
+{
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ error = decode_post_op_attr(xdr, result->fattr);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_status;
+ error = decode_pathconf3resok(xdr, result);
+out:
+ return error;
+out_status:
+ return nfs_stat_to_errno(status);
+}
+
+/*
+ * 3.3.21 COMMIT3res
+ *
+ * struct COMMIT3resok {
+ * wcc_data file_wcc;
+ * writeverf3 verf;
+ * };
+ *
+ * struct COMMIT3resfail {
+ * wcc_data file_wcc;
+ * };
+ *
+ * union COMMIT3res switch (nfsstat3 status) {
+ * case NFS3_OK:
+ * COMMIT3resok resok;
+ * default:
+ * COMMIT3resfail resfail;
+ * };
+ */
+static int nfs3_xdr_dec_commit3res(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs_writeres *result)
+{
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ error = decode_wcc_data(xdr, result->fattr);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_status;
+ error = decode_writeverf3(xdr, result->verf->verifier);
+out:
+ return error;
+out_status:
+ return nfs_stat_to_errno(status);
+}
+
+#ifdef CONFIG_NFS_V3_ACL
+
+static inline int decode_getacl3resok(struct xdr_stream *xdr,
+ struct nfs3_getaclres *result)
+{
+ struct posix_acl **acl;
+ unsigned int *aclcnt;
+ size_t hdrlen;
+ int error;
+
+ error = decode_post_op_attr(xdr, result->fattr);
+ if (unlikely(error))
+ goto out;
+ error = decode_uint32(xdr, &result->mask);
+ if (unlikely(error))
+ goto out;
+ error = -EINVAL;
+ if (result->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT))
+ goto out;
+
+ hdrlen = (u8 *)xdr->p - (u8 *)xdr->iov->iov_base;
+
+ acl = NULL;
+ if (result->mask & NFS_ACL)
+ acl = &result->acl_access;
+ aclcnt = NULL;
+ if (result->mask & NFS_ACLCNT)
+ aclcnt = &result->acl_access_count;
+ error = nfsacl_decode(xdr->buf, hdrlen, aclcnt, acl);
+ if (unlikely(error <= 0))
+ goto out;
+
+ acl = NULL;
+ if (result->mask & NFS_DFACL)
+ acl = &result->acl_default;
+ aclcnt = NULL;
+ if (result->mask & NFS_DFACLCNT)
+ aclcnt = &result->acl_default_count;
+ error = nfsacl_decode(xdr->buf, hdrlen + error, aclcnt, acl);
+ if (unlikely(error <= 0))
+ return error;
+ error = 0;
+out:
+ return error;
}
+
+static int nfs3_xdr_dec_getacl3res(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs3_getaclres *result)
+{
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_default;
+ error = decode_getacl3resok(xdr, result);
+out:
+ return error;
+out_default:
+ return nfs_stat_to_errno(status);
+}
+
+static int nfs3_xdr_dec_setacl3res(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs_fattr *result)
+{
+ enum nfs_stat status;
+ int error;
+
+ error = decode_nfsstat3(xdr, &status);
+ if (unlikely(error))
+ goto out;
+ if (status != NFS3_OK)
+ goto out_default;
+ error = decode_post_op_attr(xdr, result);
+out:
+ return error;
+out_default:
+ return nfs_stat_to_errno(status);
+}
+
#endif /* CONFIG_NFS_V3_ACL */
#define PROC(proc, argtype, restype, timer) \
[NFS3PROC_##proc] = { \
.p_proc = NFS3PROC_##proc, \
- .p_encode = (kxdrproc_t) nfs3_xdr_##argtype, \
- .p_decode = (kxdrproc_t) nfs3_xdr_##restype, \
- .p_arglen = NFS3_##argtype##_sz, \
- .p_replen = NFS3_##restype##_sz, \
+ .p_encode = (kxdreproc_t)nfs3_xdr_enc_##argtype##3args, \
+ .p_decode = (kxdrdproc_t)nfs3_xdr_dec_##restype##3res, \
+ .p_arglen = NFS3_##argtype##args_sz, \
+ .p_replen = NFS3_##restype##res_sz, \
.p_timer = timer, \
.p_statidx = NFS3PROC_##proc, \
.p_name = #proc, \
}
struct rpc_procinfo nfs3_procedures[] = {
- PROC(GETATTR, fhandle, attrstat, 1),
- PROC(SETATTR, sattrargs, wccstat, 0),
- PROC(LOOKUP, diropargs, lookupres, 2),
- PROC(ACCESS, accessargs, accessres, 1),
- PROC(READLINK, readlinkargs, readlinkres, 3),
- PROC(READ, readargs, readres, 3),
- PROC(WRITE, writeargs, writeres, 4),
- PROC(CREATE, createargs, createres, 0),
- PROC(MKDIR, mkdirargs, createres, 0),
- PROC(SYMLINK, symlinkargs, createres, 0),
- PROC(MKNOD, mknodargs, createres, 0),
- PROC(REMOVE, removeargs, removeres, 0),
- PROC(RMDIR, diropargs, wccstat, 0),
- PROC(RENAME, renameargs, renameres, 0),
- PROC(LINK, linkargs, linkres, 0),
- PROC(READDIR, readdirargs, readdirres, 3),
- PROC(READDIRPLUS, readdirargs, readdirres, 3),
- PROC(FSSTAT, fhandle, fsstatres, 0),
- PROC(FSINFO, fhandle, fsinfores, 0),
- PROC(PATHCONF, fhandle, pathconfres, 0),
- PROC(COMMIT, commitargs, commitres, 5),
+ PROC(GETATTR, getattr, getattr, 1),
+ PROC(SETATTR, setattr, setattr, 0),
+ PROC(LOOKUP, lookup, lookup, 2),
+ PROC(ACCESS, access, access, 1),
+ PROC(READLINK, readlink, readlink, 3),
+ PROC(READ, read, read, 3),
+ PROC(WRITE, write, write, 4),
+ PROC(CREATE, create, create, 0),
+ PROC(MKDIR, mkdir, create, 0),
+ PROC(SYMLINK, symlink, create, 0),
+ PROC(MKNOD, mknod, create, 0),
+ PROC(REMOVE, remove, remove, 0),
+ PROC(RMDIR, lookup, setattr, 0),
+ PROC(RENAME, rename, rename, 0),
+ PROC(LINK, link, link, 0),
+ PROC(READDIR, readdir, readdir, 3),
+ PROC(READDIRPLUS, readdirplus, readdir, 3),
+ PROC(FSSTAT, getattr, fsstat, 0),
+ PROC(FSINFO, getattr, fsinfo, 0),
+ PROC(PATHCONF, getattr, pathconf, 0),
+ PROC(COMMIT, commit, commit, 5),
};
struct rpc_version nfs_version3 = {
static struct rpc_procinfo nfs3_acl_procedures[] = {
[ACLPROC3_GETACL] = {
.p_proc = ACLPROC3_GETACL,
- .p_encode = (kxdrproc_t) nfs3_xdr_getaclargs,
- .p_decode = (kxdrproc_t) nfs3_xdr_getaclres,
+ .p_encode = (kxdreproc_t)nfs3_xdr_enc_getacl3args,
+ .p_decode = (kxdrdproc_t)nfs3_xdr_dec_getacl3res,
.p_arglen = ACL3_getaclargs_sz,
.p_replen = ACL3_getaclres_sz,
.p_timer = 1,
},
[ACLPROC3_SETACL] = {
.p_proc = ACLPROC3_SETACL,
- .p_encode = (kxdrproc_t) nfs3_xdr_setaclargs,
- .p_decode = (kxdrproc_t) nfs3_xdr_setaclres,
+ .p_encode = (kxdreproc_t)nfs3_xdr_enc_setacl3args,
+ .p_decode = (kxdrdproc_t)nfs3_xdr_dec_setacl3res,
.p_arglen = ACL3_setaclargs_sz,
.p_replen = ACL3_setaclres_sz,
.p_timer = 0,
/* lock,open owner id:
* we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
*/
-#define open_owner_id_maxsz (1 + 4)
-#define lock_owner_id_maxsz (1 + 4)
+#define open_owner_id_maxsz (1 + 1 + 4)
+#define lock_owner_id_maxsz (1 + 1 + 4)
#define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
#define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
#define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
{
__be32 *p;
- p = reserve_space(xdr, 28);
+ p = reserve_space(xdr, 32);
p = xdr_encode_hyper(p, lowner->clientid);
- *p++ = cpu_to_be32(16);
+ *p++ = cpu_to_be32(20);
p = xdr_encode_opaque_fixed(p, "lock id:", 8);
+ *p++ = cpu_to_be32(lowner->s_dev);
xdr_encode_hyper(p, lowner->id);
}
*p++ = cpu_to_be32(OP_OPEN);
*p = cpu_to_be32(arg->seqid->sequence->counter);
encode_share_access(xdr, arg->fmode);
- p = reserve_space(xdr, 28);
+ p = reserve_space(xdr, 32);
p = xdr_encode_hyper(p, arg->clientid);
- *p++ = cpu_to_be32(16);
+ *p++ = cpu_to_be32(20);
p = xdr_encode_opaque_fixed(p, "open id:", 8);
+ *p++ = cpu_to_be32(arg->server->s_dev);
xdr_encode_hyper(p, arg->id);
}
hdr->replen += decode_restorefh_maxsz;
}
-static int
+static void
encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr)
{
__be32 *p;
p = reserve_space(xdr, 2*4);
*p++ = cpu_to_be32(1);
*p = cpu_to_be32(FATTR4_WORD0_ACL);
- if (arg->acl_len % 4)
- return -EINVAL;
+ BUG_ON(arg->acl_len % 4);
p = reserve_space(xdr, 4);
*p = cpu_to_be32(arg->acl_len);
xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
hdr->nops++;
hdr->replen += decode_setacl_maxsz;
- return 0;
}
static void
const struct nfs4_layoutget_args *args,
struct compound_hdr *hdr)
{
- nfs4_stateid stateid;
__be32 *p;
p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE);
p = xdr_encode_hyper(p, args->range.offset);
p = xdr_encode_hyper(p, args->range.length);
p = xdr_encode_hyper(p, args->minlength);
- pnfs_get_layout_stateid(&stateid, NFS_I(args->inode)->layout,
- args->ctx->state);
- p = xdr_encode_opaque_fixed(p, &stateid.data, NFS4_STATEID_SIZE);
+ p = xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE);
*p = cpu_to_be32(args->maxcount);
dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n",
/*
* Encode an ACCESS request
*/
-static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args)
+static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr,
+ const struct nfs4_accessargs *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_access(&xdr, args->access, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_access(xdr, args->access, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode LOOKUP request
*/
-static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args)
+static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr,
+ const struct nfs4_lookup_arg *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->dir_fh, &hdr);
- encode_lookup(&xdr, args->name, &hdr);
- encode_getfh(&xdr, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->dir_fh, &hdr);
+ encode_lookup(xdr, args->name, &hdr);
+ encode_getfh(xdr, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode LOOKUP_ROOT request
*/
-static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args)
+static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs4_lookup_root_arg *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putrootfh(&xdr, &hdr);
- encode_getfh(&xdr, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putrootfh(xdr, &hdr);
+ encode_getfh(xdr, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode REMOVE request
*/
-static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args)
+static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr,
+ const struct nfs_removeargs *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_remove(&xdr, &args->name, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_remove(xdr, &args->name, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode RENAME request
*/
-static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs_renameargs *args)
+static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr,
+ const struct nfs_renameargs *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->old_dir, &hdr);
- encode_savefh(&xdr, &hdr);
- encode_putfh(&xdr, args->new_dir, &hdr);
- encode_rename(&xdr, args->old_name, args->new_name, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
- encode_restorefh(&xdr, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->old_dir, &hdr);
+ encode_savefh(xdr, &hdr);
+ encode_putfh(xdr, args->new_dir, &hdr);
+ encode_rename(xdr, args->old_name, args->new_name, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
+ encode_restorefh(xdr, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode LINK request
*/
-static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args)
+static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr,
+ const struct nfs4_link_arg *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_savefh(&xdr, &hdr);
- encode_putfh(&xdr, args->dir_fh, &hdr);
- encode_link(&xdr, args->name, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
- encode_restorefh(&xdr, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_savefh(xdr, &hdr);
+ encode_putfh(xdr, args->dir_fh, &hdr);
+ encode_link(xdr, args->name, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
+ encode_restorefh(xdr, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode CREATE request
*/
-static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args)
+static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr,
+ const struct nfs4_create_arg *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->dir_fh, &hdr);
- encode_savefh(&xdr, &hdr);
- encode_create(&xdr, args, &hdr);
- encode_getfh(&xdr, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
- encode_restorefh(&xdr, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->dir_fh, &hdr);
+ encode_savefh(xdr, &hdr);
+ encode_create(xdr, args, &hdr);
+ encode_getfh(xdr, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
+ encode_restorefh(xdr, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode SYMLINK request
*/
-static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args)
+static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr,
+ const struct nfs4_create_arg *args)
{
- return nfs4_xdr_enc_create(req, p, args);
+ nfs4_xdr_enc_create(req, xdr, args);
}
/*
* Encode GETATTR request
*/
-static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args)
+static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr,
+ const struct nfs4_getattr_arg *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode a CLOSE request
*/
-static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args)
+static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_closeargs *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_close(&xdr, args, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_close(xdr, args, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode an OPEN request
*/
-static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args)
+static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_openargs *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_savefh(&xdr, &hdr);
- encode_open(&xdr, args, &hdr);
- encode_getfh(&xdr, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
- encode_restorefh(&xdr, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_savefh(xdr, &hdr);
+ encode_open(xdr, args, &hdr);
+ encode_getfh(xdr, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
+ encode_restorefh(xdr, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode an OPEN_CONFIRM request
*/
-static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args)
+static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs_open_confirmargs *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.nops = 0,
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_open_confirm(&xdr, args, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_open_confirm(xdr, args, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode an OPEN request with no attributes.
*/
-static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args)
+static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs_openargs *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_open(&xdr, args, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_open(xdr, args, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode an OPEN_DOWNGRADE request
*/
-static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args)
+static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs_closeargs *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_open_downgrade(&xdr, args, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_open_downgrade(xdr, args, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode a LOCK request
*/
-static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args)
+static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_lock_args *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_lock(&xdr, args, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_lock(xdr, args, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode a LOCKT request
*/
-static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args)
+static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_lockt_args *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_lockt(&xdr, args, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_lockt(xdr, args, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode a LOCKU request
*/
-static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args)
+static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_locku_args *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_locku(&xdr, args, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_locku(xdr, args, &hdr);
encode_nops(&hdr);
- return 0;
}
-static int nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, __be32 *p, struct nfs_release_lockowner_args *args)
+static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs_release_lockowner_args *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = 0,
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_release_lockowner(&xdr, &args->lock_owner, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_release_lockowner(xdr, &args->lock_owner, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode a READLINK request
*/
-static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args)
+static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr,
+ const struct nfs4_readlink *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_readlink(&xdr, args, req, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_readlink(xdr, args, req, &hdr);
xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
args->pgbase, args->pglen);
encode_nops(&hdr);
- return 0;
}
/*
* Encode a READDIR request
*/
-static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args)
+static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr,
+ const struct nfs4_readdir_arg *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_readdir(&xdr, args, req, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_readdir(xdr, args, req, &hdr);
xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
args->pgbase, args->count);
__func__, hdr.replen << 2, args->pages,
args->pgbase, args->count);
encode_nops(&hdr);
- return 0;
}
/*
* Encode a READ request
*/
-static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
+static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_readargs *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_read(&xdr, args, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_read(xdr, args, &hdr);
xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
args->pages, args->pgbase, args->count);
req->rq_rcv_buf.flags |= XDRBUF_READ;
encode_nops(&hdr);
- return 0;
}
/*
* Encode an SETATTR request
*/
-static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args)
+static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_setattrargs *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_setattr(&xdr, args, args->server, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_setattr(xdr, args, args->server, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode a GETACL request
*/
-static int
-nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p,
- struct nfs_getaclargs *args)
+static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_getaclargs *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
uint32_t replen;
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1;
- encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr);
+ encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr);
xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
args->acl_pages, args->acl_pgbase, args->acl_len);
encode_nops(&hdr);
- return 0;
}
/*
* Encode a WRITE request
*/
-static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args)
+static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_writeargs *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_write(&xdr, args, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_write(xdr, args, &hdr);
req->rq_snd_buf.flags |= XDRBUF_WRITE;
- encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* a COMMIT request
*/
-static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args)
+static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_writeargs *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_commit(&xdr, args, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_commit(xdr, args, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* FSINFO request
*/
-static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args)
+static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs4_fsinfo_arg *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_fsinfo(&xdr, args->bitmask, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_fsinfo(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* a PATHCONF request
*/
-static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args)
+static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
+ const struct nfs4_pathconf_arg *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0],
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0],
&hdr);
encode_nops(&hdr);
- return 0;
}
/*
* a STATFS request
*/
-static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args)
+static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
+ const struct nfs4_statfs_arg *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0],
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0],
args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* GETATTR_BITMAP request
*/
-static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p,
- struct nfs4_server_caps_arg *args)
+static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs4_server_caps_arg *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fhandle, &hdr);
- encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fhandle, &hdr);
+ encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
FATTR4_WORD0_LINK_SUPPORT|
FATTR4_WORD0_SYMLINK_SUPPORT|
FATTR4_WORD0_ACLSUPPORT, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* a RENEW request
*/
-static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp)
+static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_client *clp)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.nops = 0,
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_renew(&xdr, clp, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_renew(xdr, clp, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* a SETCLIENTID request
*/
-static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc)
+static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs4_setclientid *sc)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.nops = 0,
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_setclientid(&xdr, sc, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_setclientid(xdr, sc, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* a SETCLIENTID_CONFIRM request
*/
-static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid_res *arg)
+static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs4_setclientid_res *arg)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.nops = 0,
};
const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_setclientid_confirm(&xdr, arg, &hdr);
- encode_putrootfh(&xdr, &hdr);
- encode_fsinfo(&xdr, lease_bitmap, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_setclientid_confirm(xdr, arg, &hdr);
+ encode_putrootfh(xdr, &hdr);
+ encode_fsinfo(xdr, lease_bitmap, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* DELEGRETURN request
*/
-static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args)
+static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ const struct nfs4_delegreturnargs *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fhandle, &hdr);
- encode_delegreturn(&xdr, args->stateid, &hdr);
- encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fhandle, &hdr);
+ encode_delegreturn(xdr, args->stateid, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode FS_LOCATIONS request
*/
-static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args)
+static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs4_fs_locations_arg *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
uint32_t replen;
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->dir_fh, &hdr);
- encode_lookup(&xdr, args->name, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->dir_fh, &hdr);
+ encode_lookup(xdr, args->name, &hdr);
replen = hdr.replen; /* get the attribute into args->page */
- encode_fs_locations(&xdr, args->bitmask, &hdr);
+ encode_fs_locations(xdr, args->bitmask, &hdr);
xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
0, PAGE_SIZE);
encode_nops(&hdr);
- return 0;
}
#if defined(CONFIG_NFS_V4_1)
/*
* EXCHANGE_ID request
*/
-static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p,
- struct nfs41_exchange_id_args *args)
+static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs41_exchange_id_args *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = args->client->cl_mvops->minor_version,
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_exchange_id(&xdr, args, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_exchange_id(xdr, args, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* a CREATE_SESSION request
*/
-static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p,
- struct nfs41_create_session_args *args)
+static void nfs4_xdr_enc_create_session(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs41_create_session_args *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = args->client->cl_mvops->minor_version,
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_create_session(&xdr, args, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_create_session(xdr, args, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* a DESTROY_SESSION request
*/
-static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p,
- struct nfs4_session *session)
+static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs4_session *session)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = session->clp->cl_mvops->minor_version,
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_destroy_session(&xdr, session, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_destroy_session(xdr, session, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* a SEQUENCE request
*/
-static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p,
- struct nfs4_sequence_args *args)
+static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs4_sequence_args *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, args, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, args, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* a GET_LEASE_TIME request
*/
-static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p,
- struct nfs4_get_lease_time_args *args)
+static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs4_get_lease_time_args *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
};
const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->la_seq_args, &hdr);
- encode_putrootfh(&xdr, &hdr);
- encode_fsinfo(&xdr, lease_bitmap, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->la_seq_args, &hdr);
+ encode_putrootfh(xdr, &hdr);
+ encode_fsinfo(xdr, lease_bitmap, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* a RECLAIM_COMPLETE request
*/
-static int nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, uint32_t *p,
- struct nfs41_reclaim_complete_args *args)
+static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs41_reclaim_complete_args *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args)
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_reclaim_complete(&xdr, args, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_reclaim_complete(xdr, args, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
* Encode GETDEVICEINFO request
*/
-static int nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, uint32_t *p,
- struct nfs4_getdeviceinfo_args *args)
+static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs4_getdeviceinfo_args *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_getdeviceinfo(&xdr, args, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_getdeviceinfo(xdr, args, &hdr);
/* set up reply kvec. Subtract notification bitmap max size (2)
* so that notification bitmap is put in xdr_buf tail */
args->pdev->pglen);
encode_nops(&hdr);
- return 0;
}
/*
* Encode LAYOUTGET request
*/
-static int nfs4_xdr_enc_layoutget(struct rpc_rqst *req, uint32_t *p,
- struct nfs4_layoutget_args *args)
+static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs4_layoutget_args *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, NFS_FH(args->inode), &hdr);
- encode_layoutget(&xdr, args, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, NFS_FH(args->inode), &hdr);
+ encode_layoutget(xdr, args, &hdr);
encode_nops(&hdr);
- return 0;
}
#endif /* CONFIG_NFS_V4_1 */
goto out_overflow;
eof = be32_to_cpup(p++);
count = be32_to_cpup(p);
- hdrlen = (u8 *) p - (u8 *) iov->iov_base;
+ hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base;
recvd = req->rq_rcv_buf.len - hdrlen;
if (count > recvd) {
dprintk("NFS: server cheating in read reply: "
goto out_overflow;
len = be32_to_cpup(p);
if (len) {
- int i;
+ uint32_t i;
p = xdr_inline_decode(xdr, 4 * len);
if (unlikely(!p))
/*
* Decode OPEN_DOWNGRADE response
*/
-static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res)
+static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
+ struct nfs_closeres *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_open_downgrade(&xdr, res);
+ status = decode_open_downgrade(xdr, res);
if (status != 0)
goto out;
- decode_getfattr(&xdr, res->fattr, res->server,
+ decode_getfattr(xdr, res->fattr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task));
out:
return status;
/*
* Decode ACCESS response
*/
-static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res)
+static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ struct nfs4_accessres *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status != 0)
goto out;
- status = decode_access(&xdr, res);
+ status = decode_access(xdr, res);
if (status != 0)
goto out;
- decode_getfattr(&xdr, res->fattr, res->server,
+ decode_getfattr(xdr, res->fattr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task));
out:
return status;
/*
* Decode LOOKUP response
*/
-static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res)
+static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ struct nfs4_lookup_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- if ((status = decode_putfh(&xdr)) != 0)
+ status = decode_putfh(xdr);
+ if (status)
goto out;
- if ((status = decode_lookup(&xdr)) != 0)
+ status = decode_lookup(xdr);
+ if (status)
goto out;
- if ((status = decode_getfh(&xdr, res->fh)) != 0)
+ status = decode_getfh(xdr, res->fh);
+ if (status)
goto out;
- status = decode_getfattr(&xdr, res->fattr, res->server
+ status = decode_getfattr(xdr, res->fattr, res->server
,!RPC_IS_ASYNC(rqstp->rq_task));
out:
return status;
/*
* Decode LOOKUP_ROOT response
*/
-static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res)
+static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
+ struct nfs4_lookup_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- if ((status = decode_putrootfh(&xdr)) != 0)
+ status = decode_putrootfh(xdr);
+ if (status)
goto out;
- if ((status = decode_getfh(&xdr, res->fh)) == 0)
- status = decode_getfattr(&xdr, res->fattr, res->server,
+ status = decode_getfh(xdr, res->fh);
+ if (status == 0)
+ status = decode_getfattr(xdr, res->fattr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task));
out:
return status;
/*
* Decode REMOVE response
*/
-static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res)
+static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ struct nfs_removeres *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- if ((status = decode_putfh(&xdr)) != 0)
+ status = decode_putfh(xdr);
+ if (status)
goto out;
- if ((status = decode_remove(&xdr, &res->cinfo)) != 0)
+ status = decode_remove(xdr, &res->cinfo);
+ if (status)
goto out;
- decode_getfattr(&xdr, res->dir_attr, res->server,
+ decode_getfattr(xdr, res->dir_attr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task));
out:
return status;
/*
* Decode RENAME response
*/
-static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs_renameres *res)
+static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ struct nfs_renameres *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- if ((status = decode_putfh(&xdr)) != 0)
+ status = decode_putfh(xdr);
+ if (status)
goto out;
- if ((status = decode_savefh(&xdr)) != 0)
+ status = decode_savefh(xdr);
+ if (status)
goto out;
- if ((status = decode_putfh(&xdr)) != 0)
+ status = decode_putfh(xdr);
+ if (status)
goto out;
- if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0)
+ status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo);
+ if (status)
goto out;
/* Current FH is target directory */
- if (decode_getfattr(&xdr, res->new_fattr, res->server,
+ if (decode_getfattr(xdr, res->new_fattr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task)) != 0)
goto out;
- if ((status = decode_restorefh(&xdr)) != 0)
+ status = decode_restorefh(xdr);
+ if (status)
goto out;
- decode_getfattr(&xdr, res->old_fattr, res->server,
+ decode_getfattr(xdr, res->old_fattr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task));
out:
return status;
/*
* Decode LINK response
*/
-static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res)
+static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ struct nfs4_link_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- if ((status = decode_putfh(&xdr)) != 0)
+ status = decode_putfh(xdr);
+ if (status)
goto out;
- if ((status = decode_savefh(&xdr)) != 0)
+ status = decode_savefh(xdr);
+ if (status)
goto out;
- if ((status = decode_putfh(&xdr)) != 0)
+ status = decode_putfh(xdr);
+ if (status)
goto out;
- if ((status = decode_link(&xdr, &res->cinfo)) != 0)
+ status = decode_link(xdr, &res->cinfo);
+ if (status)
goto out;
/*
* Note order: OP_LINK leaves the directory as the current
* filehandle.
*/
- if (decode_getfattr(&xdr, res->dir_attr, res->server,
+ if (decode_getfattr(xdr, res->dir_attr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task)) != 0)
goto out;
- if ((status = decode_restorefh(&xdr)) != 0)
+ status = decode_restorefh(xdr);
+ if (status)
goto out;
- decode_getfattr(&xdr, res->fattr, res->server,
+ decode_getfattr(xdr, res->fattr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task));
out:
return status;
/*
* Decode CREATE response
*/
-static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res)
+static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ struct nfs4_create_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- if ((status = decode_putfh(&xdr)) != 0)
+ status = decode_putfh(xdr);
+ if (status)
goto out;
- if ((status = decode_savefh(&xdr)) != 0)
+ status = decode_savefh(xdr);
+ if (status)
goto out;
- if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0)
+ status = decode_create(xdr, &res->dir_cinfo);
+ if (status)
goto out;
- if ((status = decode_getfh(&xdr, res->fh)) != 0)
+ status = decode_getfh(xdr, res->fh);
+ if (status)
goto out;
- if (decode_getfattr(&xdr, res->fattr, res->server,
+ if (decode_getfattr(xdr, res->fattr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task)) != 0)
goto out;
- if ((status = decode_restorefh(&xdr)) != 0)
+ status = decode_restorefh(xdr);
+ if (status)
goto out;
- decode_getfattr(&xdr, res->dir_fattr, res->server,
+ decode_getfattr(xdr, res->dir_fattr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task));
out:
return status;
/*
* Decode SYMLINK response
*/
-static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res)
+static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ struct nfs4_create_res *res)
{
- return nfs4_xdr_dec_create(rqstp, p, res);
+ return nfs4_xdr_dec_create(rqstp, xdr, res);
}
/*
* Decode GETATTR response
*/
-static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res)
+static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ struct nfs4_getattr_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_getfattr(&xdr, res->fattr, res->server,
+ status = decode_getfattr(xdr, res->fattr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task));
out:
return status;
/*
* Encode an SETACL request
*/
-static int
-nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args)
+static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr,
+ struct nfs_setaclargs *args)
{
- struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
- int status;
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, req, &hdr);
- encode_sequence(&xdr, &args->seq_args, &hdr);
- encode_putfh(&xdr, args->fh, &hdr);
- status = encode_setacl(&xdr, args, &hdr);
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_setacl(xdr, args, &hdr);
encode_nops(&hdr);
- return status;
}
/*
* Decode SETACL response
*/
static int
-nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p,
+nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
struct nfs_setaclres *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_setattr(&xdr);
+ status = decode_setattr(xdr);
out:
return status;
}
* Decode GETACL response
*/
static int
-nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p,
+nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
struct nfs_getaclres *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_getacl(&xdr, rqstp, &res->acl_len);
+ status = decode_getacl(xdr, rqstp, &res->acl_len);
out:
return status;
/*
* Decode CLOSE response
*/
-static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res)
+static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ struct nfs_closeres *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_close(&xdr, res);
+ status = decode_close(xdr, res);
if (status != 0)
goto out;
/*
* an ESTALE error. Shouldn't be a problem,
* though, since fattr->valid will remain unset.
*/
- decode_getfattr(&xdr, res->fattr, res->server,
+ decode_getfattr(xdr, res->fattr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task));
out:
return status;
/*
* Decode OPEN response
*/
-static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res)
+static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ struct nfs_openres *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_savefh(&xdr);
+ status = decode_savefh(xdr);
if (status)
goto out;
- status = decode_open(&xdr, res);
+ status = decode_open(xdr, res);
if (status)
goto out;
- if (decode_getfh(&xdr, &res->fh) != 0)
+ if (decode_getfh(xdr, &res->fh) != 0)
goto out;
- if (decode_getfattr(&xdr, res->f_attr, res->server,
+ if (decode_getfattr(xdr, res->f_attr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task)) != 0)
goto out;
- if (decode_restorefh(&xdr) != 0)
+ if (decode_restorefh(xdr) != 0)
goto out;
- decode_getfattr(&xdr, res->dir_attr, res->server,
+ decode_getfattr(xdr, res->dir_attr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task));
out:
return status;
/*
* Decode OPEN_CONFIRM response
*/
-static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res)
+static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
+ struct nfs_open_confirmres *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_open_confirm(&xdr, res);
+ status = decode_open_confirm(xdr, res);
out:
return status;
}
/*
* Decode OPEN response
*/
-static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res)
+static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
+ struct nfs_openres *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_open(&xdr, res);
+ status = decode_open(xdr, res);
if (status)
goto out;
- decode_getfattr(&xdr, res->f_attr, res->server,
+ decode_getfattr(xdr, res->f_attr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task));
out:
return status;
/*
* Decode SETATTR response
*/
-static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res)
+static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
+ struct nfs_setattrres *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_setattr(&xdr);
+ status = decode_setattr(xdr);
if (status)
goto out;
- decode_getfattr(&xdr, res->fattr, res->server,
+ decode_getfattr(xdr, res->fattr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task));
out:
return status;
/*
* Decode LOCK response
*/
-static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res)
+static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ struct nfs_lock_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_lock(&xdr, res);
+ status = decode_lock(xdr, res);
out:
return status;
}
/*
* Decode LOCKT response
*/
-static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res)
+static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ struct nfs_lockt_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_lockt(&xdr, res);
+ status = decode_lockt(xdr, res);
out:
return status;
}
/*
* Decode LOCKU response
*/
-static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res)
+static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ struct nfs_locku_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_locku(&xdr, res);
+ status = decode_locku(xdr, res);
out:
return status;
}
-static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, __be32 *p, void *dummy)
+static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr, void *dummy)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (!status)
- status = decode_release_lockowner(&xdr);
+ status = decode_release_lockowner(xdr);
return status;
}
/*
* Decode READLINK response
*/
-static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p,
+static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
struct nfs4_readlink_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_readlink(&xdr, rqstp);
+ status = decode_readlink(xdr, rqstp);
out:
return status;
}
/*
* Decode READDIR response
*/
-static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res)
+static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ struct nfs4_readdir_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_readdir(&xdr, rqstp, res);
+ status = decode_readdir(xdr, rqstp, res);
out:
return status;
}
/*
* Decode Read response
*/
-static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res)
+static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ struct nfs_readres *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_read(&xdr, rqstp, res);
+ status = decode_read(xdr, rqstp, res);
if (!status)
status = res->count;
out:
/*
* Decode WRITE response
*/
-static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res)
+static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ struct nfs_writeres *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_write(&xdr, res);
+ status = decode_write(xdr, res);
if (status)
goto out;
- decode_getfattr(&xdr, res->fattr, res->server,
+ decode_getfattr(xdr, res->fattr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task));
if (!status)
status = res->count;
/*
* Decode COMMIT response
*/
-static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res)
+static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ struct nfs_writeres *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_commit(&xdr, res);
+ status = decode_commit(xdr, res);
if (status)
goto out;
- decode_getfattr(&xdr, res->fattr, res->server,
+ decode_getfattr(xdr, res->fattr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task));
out:
return status;
/*
* Decode FSINFO response
*/
-static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p,
+static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
struct nfs4_fsinfo_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (!status)
- status = decode_sequence(&xdr, &res->seq_res, req);
+ status = decode_sequence(xdr, &res->seq_res, req);
if (!status)
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (!status)
- status = decode_fsinfo(&xdr, res->fsinfo);
+ status = decode_fsinfo(xdr, res->fsinfo);
return status;
}
/*
* Decode PATHCONF response
*/
-static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p,
+static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
struct nfs4_pathconf_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (!status)
- status = decode_sequence(&xdr, &res->seq_res, req);
+ status = decode_sequence(xdr, &res->seq_res, req);
if (!status)
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (!status)
- status = decode_pathconf(&xdr, res->pathconf);
+ status = decode_pathconf(xdr, res->pathconf);
return status;
}
/*
* Decode STATFS response
*/
-static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p,
+static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
struct nfs4_statfs_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (!status)
- status = decode_sequence(&xdr, &res->seq_res, req);
+ status = decode_sequence(xdr, &res->seq_res, req);
if (!status)
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (!status)
- status = decode_statfs(&xdr, res->fsstat);
+ status = decode_statfs(xdr, res->fsstat);
return status;
}
/*
* Decode GETATTR_BITMAP response
*/
-static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res)
+static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs4_server_caps_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, req);
+ status = decode_sequence(xdr, &res->seq_res, req);
if (status)
goto out;
- if ((status = decode_putfh(&xdr)) != 0)
+ status = decode_putfh(xdr);
+ if (status)
goto out;
- status = decode_server_caps(&xdr, res);
+ status = decode_server_caps(xdr, res);
out:
return status;
}
/*
* Decode RENEW response
*/
-static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy)
+static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ void *__unused)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (!status)
- status = decode_renew(&xdr);
+ status = decode_renew(xdr);
return status;
}
/*
* Decode SETCLIENTID response
*/
-static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p,
- struct nfs4_setclientid_res *res)
+static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs4_setclientid_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (!status)
- status = decode_setclientid(&xdr, res);
+ status = decode_setclientid(xdr, res);
return status;
}
/*
* Decode SETCLIENTID_CONFIRM response
*/
-static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo)
+static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
+ struct nfs_fsinfo *fsinfo)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (!status)
- status = decode_setclientid_confirm(&xdr);
+ status = decode_setclientid_confirm(xdr);
if (!status)
- status = decode_putrootfh(&xdr);
+ status = decode_putrootfh(xdr);
if (!status)
- status = decode_fsinfo(&xdr, fsinfo);
+ status = decode_fsinfo(xdr, fsinfo);
return status;
}
/*
* Decode DELEGRETURN response
*/
-static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res)
+static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
+ struct nfs4_delegreturnres *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status != 0)
goto out;
- status = decode_delegreturn(&xdr);
+ status = decode_delegreturn(xdr);
if (status != 0)
goto out;
- decode_getfattr(&xdr, res->fattr, res->server,
+ decode_getfattr(xdr, res->fattr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task));
out:
return status;
/*
* Decode FS_LOCATIONS response
*/
-static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p,
+static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
struct nfs4_fs_locations_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, req);
+ status = decode_sequence(xdr, &res->seq_res, req);
if (status)
goto out;
- if ((status = decode_putfh(&xdr)) != 0)
+ status = decode_putfh(xdr);
+ if (status)
goto out;
- if ((status = decode_lookup(&xdr)) != 0)
+ status = decode_lookup(xdr);
+ if (status)
goto out;
- xdr_enter_page(&xdr, PAGE_SIZE);
- status = decode_getfattr(&xdr, &res->fs_locations->fattr,
+ xdr_enter_page(xdr, PAGE_SIZE);
+ status = decode_getfattr(xdr, &res->fs_locations->fattr,
res->fs_locations->server,
!RPC_IS_ASYNC(req->rq_task));
out:
/*
* Decode EXCHANGE_ID response
*/
-static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p,
+static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
void *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (!status)
- status = decode_exchange_id(&xdr, res);
+ status = decode_exchange_id(xdr, res);
return status;
}
/*
* Decode CREATE_SESSION response
*/
-static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p,
+static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
struct nfs41_create_session_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (!status)
- status = decode_create_session(&xdr, res);
+ status = decode_create_session(xdr, res);
return status;
}
/*
* Decode DESTROY_SESSION response
*/
-static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p,
- void *dummy)
+static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
+ void *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (!status)
- status = decode_destroy_session(&xdr, dummy);
+ status = decode_destroy_session(xdr, res);
return status;
}
/*
* Decode SEQUENCE response
*/
-static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p,
+static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
struct nfs4_sequence_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (!status)
- status = decode_sequence(&xdr, res, rqstp);
+ status = decode_sequence(xdr, res, rqstp);
return status;
}
/*
* Decode GET_LEASE_TIME response
*/
-static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p,
+static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
struct nfs4_get_lease_time_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (!status)
- status = decode_sequence(&xdr, &res->lr_seq_res, rqstp);
+ status = decode_sequence(xdr, &res->lr_seq_res, rqstp);
if (!status)
- status = decode_putrootfh(&xdr);
+ status = decode_putrootfh(xdr);
if (!status)
- status = decode_fsinfo(&xdr, res->lr_fsinfo);
+ status = decode_fsinfo(xdr, res->lr_fsinfo);
return status;
}
/*
* Decode RECLAIM_COMPLETE response
*/
-static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, uint32_t *p,
+static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
struct nfs41_reclaim_complete_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (!status)
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (!status)
- status = decode_reclaim_complete(&xdr, (void *)NULL);
+ status = decode_reclaim_complete(xdr, (void *)NULL);
return status;
}
/*
* Decode GETDEVINFO response
*/
-static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, uint32_t *p,
+static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
struct nfs4_getdeviceinfo_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status != 0)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status != 0)
goto out;
- status = decode_getdeviceinfo(&xdr, res->pdev);
+ status = decode_getdeviceinfo(xdr, res->pdev);
out:
return status;
}
/*
* Decode LAYOUTGET response
*/
-static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, uint32_t *p,
+static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp,
+ struct xdr_stream *xdr,
struct nfs4_layoutget_res *res)
{
- struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
+ status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
- status = decode_sequence(&xdr, &res->seq_res, rqstp);
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
- status = decode_putfh(&xdr);
+ status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_layoutget(&xdr, rqstp, res);
+ status = decode_layoutget(xdr, rqstp, res);
out:
return status;
}
#endif /* CONFIG_NFS_V4_1 */
-__be32 *nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
- struct nfs_server *server, int plus)
+/**
+ * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in
+ * the local page cache.
+ * @xdr: XDR stream where entry resides
+ * @entry: buffer to fill in with entry data
+ * @plus: boolean indicating whether this should be a readdirplus entry
+ *
+ * Returns zero if successful, otherwise a negative errno value is
+ * returned.
+ *
+ * This function is not invoked during READDIR reply decoding, but
+ * rather whenever an application invokes the getdents(2) system call
+ * on a directory already in our cache.
+ */
+int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
+ int plus)
{
uint32_t bitmap[2] = {0};
uint32_t len;
if (unlikely(!p))
goto out_overflow;
if (!ntohl(*p++))
- return ERR_PTR(-EAGAIN);
+ return -EAGAIN;
entry->eof = 1;
- return ERR_PTR(-EBADCOOKIE);
+ return -EBADCOOKIE;
}
p = xdr_inline_decode(xdr, 12);
if (decode_attr_length(xdr, &len, &p) < 0)
goto out_overflow;
- if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, server, 1) < 0)
+ if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh,
+ entry->server, 1) < 0)
goto out_overflow;
if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID)
entry->ino = entry->fattr->fileid;
if (verify_attr_len(xdr, p, len) < 0)
goto out_overflow;
- p = xdr_inline_peek(xdr, 8);
- if (p != NULL)
- entry->eof = !p[0] && p[1];
- else
- entry->eof = 0;
-
- return p;
+ return 0;
out_overflow:
print_overflow_msg(__func__, xdr);
- return ERR_PTR(-EAGAIN);
+ return -EAGAIN;
}
/*
#define PROC(proc, argtype, restype) \
[NFSPROC4_CLNT_##proc] = { \
.p_proc = NFSPROC4_COMPOUND, \
- .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \
- .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \
+ .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \
+ .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \
.p_arglen = NFS4_##argtype##_sz, \
.p_replen = NFS4_##restype##_sz, \
.p_statidx = NFSPROC4_CLNT_##proc, \
}
struct rpc_procinfo nfs4_procedures[] = {
- PROC(READ, enc_read, dec_read),
- PROC(WRITE, enc_write, dec_write),
- PROC(COMMIT, enc_commit, dec_commit),
- PROC(OPEN, enc_open, dec_open),
- PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
- PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
- PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
- PROC(CLOSE, enc_close, dec_close),
- PROC(SETATTR, enc_setattr, dec_setattr),
- PROC(FSINFO, enc_fsinfo, dec_fsinfo),
- PROC(RENEW, enc_renew, dec_renew),
- PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
- PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
- PROC(LOCK, enc_lock, dec_lock),
- PROC(LOCKT, enc_lockt, dec_lockt),
- PROC(LOCKU, enc_locku, dec_locku),
- PROC(ACCESS, enc_access, dec_access),
- PROC(GETATTR, enc_getattr, dec_getattr),
- PROC(LOOKUP, enc_lookup, dec_lookup),
- PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
- PROC(REMOVE, enc_remove, dec_remove),
- PROC(RENAME, enc_rename, dec_rename),
- PROC(LINK, enc_link, dec_link),
- PROC(SYMLINK, enc_symlink, dec_symlink),
- PROC(CREATE, enc_create, dec_create),
- PROC(PATHCONF, enc_pathconf, dec_pathconf),
- PROC(STATFS, enc_statfs, dec_statfs),
- PROC(READLINK, enc_readlink, dec_readlink),
- PROC(READDIR, enc_readdir, dec_readdir),
- PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
- PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
- PROC(GETACL, enc_getacl, dec_getacl),
- PROC(SETACL, enc_setacl, dec_setacl),
- PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
- PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner),
+ PROC(READ, enc_read, dec_read),
+ PROC(WRITE, enc_write, dec_write),
+ PROC(COMMIT, enc_commit, dec_commit),
+ PROC(OPEN, enc_open, dec_open),
+ PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
+ PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
+ PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
+ PROC(CLOSE, enc_close, dec_close),
+ PROC(SETATTR, enc_setattr, dec_setattr),
+ PROC(FSINFO, enc_fsinfo, dec_fsinfo),
+ PROC(RENEW, enc_renew, dec_renew),
+ PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
+ PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
+ PROC(LOCK, enc_lock, dec_lock),
+ PROC(LOCKT, enc_lockt, dec_lockt),
+ PROC(LOCKU, enc_locku, dec_locku),
+ PROC(ACCESS, enc_access, dec_access),
+ PROC(GETATTR, enc_getattr, dec_getattr),
+ PROC(LOOKUP, enc_lookup, dec_lookup),
+ PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
+ PROC(REMOVE, enc_remove, dec_remove),
+ PROC(RENAME, enc_rename, dec_rename),
+ PROC(LINK, enc_link, dec_link),
+ PROC(SYMLINK, enc_symlink, dec_symlink),
+ PROC(CREATE, enc_create, dec_create),
+ PROC(PATHCONF, enc_pathconf, dec_pathconf),
+ PROC(STATFS, enc_statfs, dec_statfs),
+ PROC(READLINK, enc_readlink, dec_readlink),
+ PROC(READDIR, enc_readdir, dec_readdir),
+ PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
+ PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
+ PROC(GETACL, enc_getacl, dec_getacl),
+ PROC(SETACL, enc_setacl, dec_setacl),
+ PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
+ PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner),
#if defined(CONFIG_NFS_V4_1)
- PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
- PROC(CREATE_SESSION, enc_create_session, dec_create_session),
- PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session),
- PROC(SEQUENCE, enc_sequence, dec_sequence),
- PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time),
- PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete),
- PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo),
- PROC(LAYOUTGET, enc_layoutget, dec_layoutget),
+ PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
+ PROC(CREATE_SESSION, enc_create_session, dec_create_session),
+ PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session),
+ PROC(SEQUENCE, enc_sequence, dec_sequence),
+ PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time),
+ PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete),
+ PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo),
+ PROC(LAYOUTGET, enc_layoutget, dec_layoutget),
#endif /* CONFIG_NFS_V4_1 */
};
};
/*
- * This is the generic XDR function. rqstp is either a rpc_rqst (client
- * side) or svc_rqst pointer (server side).
+ * This is the legacy generic XDR function. rqstp is either a rpc_rqst
+ * (client side) or svc_rqst pointer (server side).
* Encode functions always assume there's enough room in the buffer.
*/
typedef int (*kxdrproc_t)(void *rqstp, __be32 *data, void *obj);
__be32 *end; /* end of available buffer space */
struct kvec *iov; /* pointer to the current kvec */
+ struct kvec scratch; /* Scratch buffer */
+ struct page **page_ptr; /* pointer to the current page */
};
+/*
+ * These are the xdr_stream style generic XDR encode and decode functions.
+ */
+typedef void (*kxdreproc_t)(void *rqstp, struct xdr_stream *xdr, void *obj);
+typedef int (*kxdrdproc_t)(void *rqstp, struct xdr_stream *xdr, void *obj);
+
extern void xdr_init_encode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p);
extern __be32 *xdr_reserve_space(struct xdr_stream *xdr, size_t nbytes);
extern void xdr_write_pages(struct xdr_stream *xdr, struct page **pages,
unsigned int base, unsigned int len);
extern void xdr_init_decode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p);
- extern __be32 *xdr_inline_peek(struct xdr_stream *xdr, size_t nbytes);
+ extern void xdr_set_scratch_buffer(struct xdr_stream *xdr, void *buf, size_t buflen);
extern __be32 *xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes);
extern void xdr_read_pages(struct xdr_stream *xdr, unsigned int len);
extern void xdr_enter_page(struct xdr_stream *xdr, unsigned int len);
projects / platform / adaptation / renesas_rcar / renesas_kernel.git / commitdiff