blob: e437fd6a819f6f5a3ea5bd7c303a3c3e6b260638 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * fs/nfs/nfs4xdr.c
3 *
4 * Client-side XDR for NFSv4.
5 *
6 * Copyright (c) 2002 The Regents of the University of Michigan.
7 * All rights reserved.
8 *
9 * Kendrick Smith <kmsmith@umich.edu>
10 * Andy Adamson <andros@umich.edu>
Andy Adamson6c0195a2008-12-23 16:06:15 -050011 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070012 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 *
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of the University nor the names of its
22 * contributors may be used to endorse or promote products derived
23 * from this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
27 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
28 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
32 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
34 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 */
37
38#include <linux/param.h>
39#include <linux/time.h>
40#include <linux/mm.h>
41#include <linux/slab.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070042#include <linux/errno.h>
43#include <linux/string.h>
44#include <linux/in.h>
45#include <linux/pagemap.h>
46#include <linux/proc_fs.h>
47#include <linux/kdev_t.h>
48#include <linux/sunrpc/clnt.h>
Alexandros Batsakis2449ea22009-12-05 13:36:55 -050049#include <linux/sunrpc/msg_prot.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070050#include <linux/nfs.h>
51#include <linux/nfs4.h>
52#include <linux/nfs_fs.h>
53#include <linux/nfs_idmap.h>
Trond Myklebust4ce79712005-06-22 17:16:21 +000054#include "nfs4_fs.h"
Alexandros Batsakis4882ef72009-12-05 13:30:21 -050055#include "internal.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070056
57#define NFSDBG_FACILITY NFSDBG_XDR
58
59/* Mapping from NFS error code to "errno" error code. */
60#define errno_NFSERR_IO EIO
61
David Howells0a8ea432006-08-22 20:06:08 -040062static int nfs4_stat_to_errno(int);
Linus Torvalds1da177e2005-04-16 15:20:36 -070063
64/* NFSv4 COMPOUND tags are only wanted for debugging purposes */
65#ifdef DEBUG
66#define NFS4_MAXTAGLEN 20
67#else
68#define NFS4_MAXTAGLEN 0
69#endif
70
Andy Adamson6c0195a2008-12-23 16:06:15 -050071/* lock,open owner id:
Trond Myklebust9f958ab2007-07-02 13:58:33 -040072 * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -070073 */
Trond Myklebust9f958ab2007-07-02 13:58:33 -040074#define open_owner_id_maxsz (1 + 4)
75#define lock_owner_id_maxsz (1 + 4)
Trond Myklebust9104a552007-07-17 21:52:42 -040076#define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
Linus Torvalds1da177e2005-04-16 15:20:36 -070077#define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
78#define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
79#define op_encode_hdr_maxsz (1)
80#define op_decode_hdr_maxsz (2)
Trond Myklebust9104a552007-07-17 21:52:42 -040081#define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
82#define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
83#define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
84#define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
Linus Torvalds1da177e2005-04-16 15:20:36 -070085#define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
86 (NFS4_FHSIZE >> 2))
87#define decode_putfh_maxsz (op_decode_hdr_maxsz)
88#define encode_putrootfh_maxsz (op_encode_hdr_maxsz)
89#define decode_putrootfh_maxsz (op_decode_hdr_maxsz)
90#define encode_getfh_maxsz (op_encode_hdr_maxsz)
91#define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
92 ((3+NFS4_FHSIZE) >> 2))
J. Bruce Fields96928202005-06-22 17:16:22 +000093#define nfs4_fattr_bitmap_maxsz 3
94#define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -070095#define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
96#define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
Trond Myklebustbd625ba2007-07-08 18:38:23 -040097#define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
98#define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
J. Bruce Fields96928202005-06-22 17:16:22 +000099/* This is based on getfattr, which uses the most attributes: */
100#define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
Trond Myklebustbd625ba2007-07-08 18:38:23 -0400101 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz))
J. Bruce Fields96928202005-06-22 17:16:22 +0000102#define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
103 nfs4_fattr_value_maxsz)
104#define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400105#define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
106 1 + 2 + 1 + \
107 nfs4_owner_maxsz + \
108 nfs4_group_maxsz + \
109 4 + 4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110#define encode_savefh_maxsz (op_encode_hdr_maxsz)
111#define decode_savefh_maxsz (op_decode_hdr_maxsz)
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400112#define encode_restorefh_maxsz (op_encode_hdr_maxsz)
113#define decode_restorefh_maxsz (op_decode_hdr_maxsz)
Fred Isaman2f42b5d2008-03-13 15:26:30 +0200114#define encode_fsinfo_maxsz (encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115#define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11)
116#define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
117#define decode_renew_maxsz (op_decode_hdr_maxsz)
118#define encode_setclientid_maxsz \
119 (op_encode_hdr_maxsz + \
Chuck Levercc38bac2007-12-10 14:56:54 -0500120 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
121 XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \
122 1 /* sc_prog */ + \
123 XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
124 XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
125 1) /* sc_cb_ident */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126#define decode_setclientid_maxsz \
127 (op_decode_hdr_maxsz + \
128 2 + \
129 1024) /* large value for CLID_INUSE */
130#define encode_setclientid_confirm_maxsz \
131 (op_encode_hdr_maxsz + \
132 3 + (NFS4_VERIFIER_SIZE >> 2))
133#define decode_setclientid_confirm_maxsz \
134 (op_decode_hdr_maxsz)
Trond Myklebuste6889622007-07-02 13:58:30 -0400135#define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
136#define decode_lookup_maxsz (op_decode_hdr_maxsz)
Trond Myklebust2cebf822007-07-02 13:57:28 -0400137#define encode_share_access_maxsz \
138 (2)
Alexandros Batsakis4882ef72009-12-05 13:30:21 -0500139#define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
Trond Myklebust2cebf822007-07-02 13:57:28 -0400140#define encode_opentype_maxsz (1 + encode_createmode_maxsz)
141#define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
142#define encode_open_maxsz (op_encode_hdr_maxsz + \
143 2 + encode_share_access_maxsz + 2 + \
144 open_owner_id_maxsz + \
145 encode_opentype_maxsz + \
146 encode_claim_null_maxsz)
147#define decode_ace_maxsz (3 + nfs4_owner_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400148#define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400149 decode_ace_maxsz)
150#define decode_change_info_maxsz (5)
151#define decode_open_maxsz (op_decode_hdr_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400152 decode_stateid_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400153 decode_change_info_maxsz + 1 + \
154 nfs4_fattr_bitmap_maxsz + \
155 decode_delegation_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400156#define encode_open_confirm_maxsz \
157 (op_encode_hdr_maxsz + \
158 encode_stateid_maxsz + 1)
159#define decode_open_confirm_maxsz \
160 (op_decode_hdr_maxsz + \
161 decode_stateid_maxsz)
162#define encode_open_downgrade_maxsz \
163 (op_encode_hdr_maxsz + \
164 encode_stateid_maxsz + 1 + \
165 encode_share_access_maxsz)
166#define decode_open_downgrade_maxsz \
167 (op_decode_hdr_maxsz + \
168 decode_stateid_maxsz)
169#define encode_close_maxsz (op_encode_hdr_maxsz + \
170 1 + encode_stateid_maxsz)
171#define decode_close_maxsz (op_decode_hdr_maxsz + \
172 decode_stateid_maxsz)
173#define encode_setattr_maxsz (op_encode_hdr_maxsz + \
174 encode_stateid_maxsz + \
175 encode_attrs_maxsz)
176#define decode_setattr_maxsz (op_decode_hdr_maxsz + \
177 nfs4_fattr_bitmap_maxsz)
178#define encode_read_maxsz (op_encode_hdr_maxsz + \
179 encode_stateid_maxsz + 3)
180#define decode_read_maxsz (op_decode_hdr_maxsz + 2)
181#define encode_readdir_maxsz (op_encode_hdr_maxsz + \
182 2 + encode_verifier_maxsz + 5)
183#define decode_readdir_maxsz (op_decode_hdr_maxsz + \
184 decode_verifier_maxsz)
185#define encode_readlink_maxsz (op_encode_hdr_maxsz)
186#define decode_readlink_maxsz (op_decode_hdr_maxsz + 1)
187#define encode_write_maxsz (op_encode_hdr_maxsz + \
188 encode_stateid_maxsz + 4)
189#define decode_write_maxsz (op_decode_hdr_maxsz + \
190 2 + decode_verifier_maxsz)
191#define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
192#define decode_commit_maxsz (op_decode_hdr_maxsz + \
193 decode_verifier_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194#define encode_remove_maxsz (op_encode_hdr_maxsz + \
195 nfs4_name_maxsz)
Benny Halevy6ce18392009-04-01 09:22:06 -0400196#define decode_remove_maxsz (op_decode_hdr_maxsz + \
197 decode_change_info_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198#define encode_rename_maxsz (op_encode_hdr_maxsz + \
199 2 * nfs4_name_maxsz)
Benny Halevy6ce18392009-04-01 09:22:06 -0400200#define decode_rename_maxsz (op_decode_hdr_maxsz + \
201 decode_change_info_maxsz + \
202 decode_change_info_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203#define encode_link_maxsz (op_encode_hdr_maxsz + \
204 nfs4_name_maxsz)
Benny Halevy6ce18392009-04-01 09:22:06 -0400205#define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400206#define encode_lock_maxsz (op_encode_hdr_maxsz + \
207 7 + \
208 1 + encode_stateid_maxsz + 8)
209#define decode_lock_denied_maxsz \
210 (8 + decode_lockowner_maxsz)
211#define decode_lock_maxsz (op_decode_hdr_maxsz + \
212 decode_lock_denied_maxsz)
213#define encode_lockt_maxsz (op_encode_hdr_maxsz + 12)
214#define decode_lockt_maxsz (op_decode_hdr_maxsz + \
215 decode_lock_denied_maxsz)
216#define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
217 encode_stateid_maxsz + \
218 4)
219#define decode_locku_maxsz (op_decode_hdr_maxsz + \
220 decode_stateid_maxsz)
221#define encode_access_maxsz (op_encode_hdr_maxsz + 1)
222#define decode_access_maxsz (op_decode_hdr_maxsz + 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223#define encode_symlink_maxsz (op_encode_hdr_maxsz + \
224 1 + nfs4_name_maxsz + \
Chuck Lever94a6d752006-08-22 20:06:23 -0400225 1 + \
J. Bruce Fields96928202005-06-22 17:16:22 +0000226 nfs4_fattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227#define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
228#define encode_create_maxsz (op_encode_hdr_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400229 1 + 2 + nfs4_name_maxsz + \
230 encode_attrs_maxsz)
Trond Myklebust2cebf822007-07-02 13:57:28 -0400231#define decode_create_maxsz (op_decode_hdr_maxsz + \
232 decode_change_info_maxsz + \
233 nfs4_fattr_bitmap_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400234#define encode_statfs_maxsz (encode_getattr_maxsz)
235#define decode_statfs_maxsz (decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236#define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
237#define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400238#define encode_getacl_maxsz (encode_getattr_maxsz)
239#define decode_getacl_maxsz (op_decode_hdr_maxsz + \
240 nfs4_fattr_bitmap_maxsz + 1)
241#define encode_setacl_maxsz (op_encode_hdr_maxsz + \
242 encode_stateid_maxsz + 3)
243#define decode_setacl_maxsz (decode_setattr_maxsz)
Trond Myklebuste6889622007-07-02 13:58:30 -0400244#define encode_fs_locations_maxsz \
245 (encode_getattr_maxsz)
246#define decode_fs_locations_maxsz \
247 (0)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400248
249#if defined(CONFIG_NFS_V4_1)
Andy Adamsonfc931582009-04-01 09:22:31 -0400250#define NFS4_MAX_MACHINE_NAME_LEN (64)
251
Benny Halevy99fe60d2009-04-01 09:22:29 -0400252#define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
253 encode_verifier_maxsz + \
254 1 /* co_ownerid.len */ + \
255 XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \
256 1 /* flags */ + \
257 1 /* spa_how */ + \
258 0 /* SP4_NONE (for now) */ + \
259 1 /* zero implemetation id array */)
260#define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
261 2 /* eir_clientid */ + \
262 1 /* eir_sequenceid */ + \
263 1 /* eir_flags */ + \
264 1 /* spr_how */ + \
265 0 /* SP4_NONE (for now) */ + \
266 2 /* eir_server_owner.so_minor_id */ + \
267 /* eir_server_owner.so_major_id<> */ \
268 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
269 /* eir_server_scope<> */ \
270 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
271 1 /* eir_server_impl_id array length */ + \
272 0 /* ignored eir_server_impl_id contents */)
Andy Adamsonfc931582009-04-01 09:22:31 -0400273#define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
274#define decode_channel_attrs_maxsz (6 + \
275 1 /* ca_rdma_ird.len */ + \
276 1 /* ca_rdma_ird */)
277#define encode_create_session_maxsz (op_encode_hdr_maxsz + \
278 2 /* csa_clientid */ + \
279 1 /* csa_sequence */ + \
280 1 /* csa_flags */ + \
281 encode_channel_attrs_maxsz + \
282 encode_channel_attrs_maxsz + \
283 1 /* csa_cb_program */ + \
284 1 /* csa_sec_parms.len (1) */ + \
285 1 /* cb_secflavor (AUTH_SYS) */ + \
286 1 /* stamp */ + \
287 1 /* machinename.len */ + \
288 XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
289 1 /* uid */ + \
290 1 /* gid */ + \
291 1 /* gids.len (0) */)
292#define decode_create_session_maxsz (op_decode_hdr_maxsz + \
293 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
294 1 /* csr_sequence */ + \
295 1 /* csr_flags */ + \
296 decode_channel_attrs_maxsz + \
297 decode_channel_attrs_maxsz)
Andy Adamson0f3e66c2009-04-01 09:22:34 -0400298#define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
299#define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
Andy Adamsonfc01cea2009-04-01 09:22:36 -0400300#define encode_sequence_maxsz (op_encode_hdr_maxsz + \
301 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
302#define decode_sequence_maxsz (op_decode_hdr_maxsz + \
303 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
Ricardo Labiaga18019752009-12-05 16:08:40 -0500304#define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
305#define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400306#else /* CONFIG_NFS_V4_1 */
307#define encode_sequence_maxsz 0
308#define decode_sequence_maxsz 0
309#endif /* CONFIG_NFS_V4_1 */
310
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311#define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
312#define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
313#define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400314 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400316 encode_read_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317#define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400318 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400320 decode_read_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321#define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400322 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400324 encode_readlink_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325#define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400326 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400328 decode_readlink_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329#define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400330 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400332 encode_readdir_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333#define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400334 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400336 decode_readdir_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337#define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400338 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400340 encode_write_maxsz + \
Trond Myklebust4f9838c2005-10-27 22:12:44 -0400341 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342#define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400343 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400345 decode_write_maxsz + \
Trond Myklebust4f9838c2005-10-27 22:12:44 -0400346 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347#define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400348 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400350 encode_commit_maxsz + \
Trond Myklebust4f9838c2005-10-27 22:12:44 -0400351 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352#define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400353 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400355 decode_commit_maxsz + \
Trond Myklebust4f9838c2005-10-27 22:12:44 -0400356 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357#define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400358 encode_sequence_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400359 encode_putfh_maxsz + \
360 encode_savefh_maxsz + \
361 encode_open_maxsz + \
362 encode_getfh_maxsz + \
363 encode_getattr_maxsz + \
364 encode_restorefh_maxsz + \
365 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366#define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400367 decode_sequence_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400368 decode_putfh_maxsz + \
369 decode_savefh_maxsz + \
370 decode_open_maxsz + \
371 decode_getfh_maxsz + \
372 decode_getattr_maxsz + \
373 decode_restorefh_maxsz + \
374 decode_getattr_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400375#define NFS4_enc_open_confirm_sz \
376 (compound_encode_hdr_maxsz + \
377 encode_putfh_maxsz + \
378 encode_open_confirm_maxsz)
379#define NFS4_dec_open_confirm_sz \
380 (compound_decode_hdr_maxsz + \
381 decode_putfh_maxsz + \
382 decode_open_confirm_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700383#define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400384 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385 encode_putfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400386 encode_open_maxsz + \
387 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388#define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400389 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390 decode_putfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400391 decode_open_maxsz + \
392 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393#define NFS4_enc_open_downgrade_sz \
394 (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400395 encode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400396 encode_putfh_maxsz + \
397 encode_open_downgrade_maxsz + \
398 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399#define NFS4_dec_open_downgrade_sz \
400 (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400401 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400402 decode_putfh_maxsz + \
403 decode_open_downgrade_maxsz + \
404 decode_getattr_maxsz)
405#define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400406 encode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400407 encode_putfh_maxsz + \
408 encode_close_maxsz + \
409 encode_getattr_maxsz)
410#define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400411 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400412 decode_putfh_maxsz + \
413 decode_close_maxsz + \
414 decode_getattr_maxsz)
415#define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400416 encode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400417 encode_putfh_maxsz + \
418 encode_setattr_maxsz + \
419 encode_getattr_maxsz)
420#define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400421 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400422 decode_putfh_maxsz + \
423 decode_setattr_maxsz + \
424 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425#define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400426 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427 encode_putfh_maxsz + \
428 encode_fsinfo_maxsz)
429#define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400430 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431 decode_putfh_maxsz + \
432 decode_fsinfo_maxsz)
433#define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
434 encode_renew_maxsz)
435#define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
436 decode_renew_maxsz)
437#define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
438 encode_setclientid_maxsz)
439#define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
440 decode_setclientid_maxsz)
441#define NFS4_enc_setclientid_confirm_sz \
442 (compound_encode_hdr_maxsz + \
443 encode_setclientid_confirm_maxsz + \
444 encode_putrootfh_maxsz + \
445 encode_fsinfo_maxsz)
446#define NFS4_dec_setclientid_confirm_sz \
447 (compound_decode_hdr_maxsz + \
448 decode_setclientid_confirm_maxsz + \
449 decode_putrootfh_maxsz + \
450 decode_fsinfo_maxsz)
451#define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400452 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400454 encode_lock_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455#define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400456 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400458 decode_lock_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459#define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400460 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400462 encode_lockt_maxsz)
463#define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400464 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400465 decode_putfh_maxsz + \
466 decode_lockt_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700467#define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400468 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400470 encode_locku_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471#define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400472 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400474 decode_locku_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475#define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400476 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477 encode_putfh_maxsz + \
Trond Myklebust76b32992007-08-10 17:45:11 -0400478 encode_access_maxsz + \
479 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700480#define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400481 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482 decode_putfh_maxsz + \
Trond Myklebust76b32992007-08-10 17:45:11 -0400483 decode_access_maxsz + \
484 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700485#define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400486 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487 encode_putfh_maxsz + \
488 encode_getattr_maxsz)
489#define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400490 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491 decode_putfh_maxsz + \
492 decode_getattr_maxsz)
493#define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400494 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495 encode_putfh_maxsz + \
496 encode_lookup_maxsz + \
497 encode_getattr_maxsz + \
498 encode_getfh_maxsz)
499#define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400500 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501 decode_putfh_maxsz + \
Trond Myklebuste6889622007-07-02 13:58:30 -0400502 decode_lookup_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700503 decode_getattr_maxsz + \
504 decode_getfh_maxsz)
505#define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400506 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507 encode_putrootfh_maxsz + \
508 encode_getattr_maxsz + \
509 encode_getfh_maxsz)
510#define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400511 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700512 decode_putrootfh_maxsz + \
513 decode_getattr_maxsz + \
514 decode_getfh_maxsz)
515#define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400516 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700517 encode_putfh_maxsz + \
Trond Myklebust16e42952005-10-27 22:12:44 -0400518 encode_remove_maxsz + \
519 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520#define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400521 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522 decode_putfh_maxsz + \
Benny Halevy6ce18392009-04-01 09:22:06 -0400523 decode_remove_maxsz + \
Trond Myklebust16e42952005-10-27 22:12:44 -0400524 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525#define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400526 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527 encode_putfh_maxsz + \
528 encode_savefh_maxsz + \
529 encode_putfh_maxsz + \
Trond Myklebust6caf2c82005-10-27 22:12:43 -0400530 encode_rename_maxsz + \
531 encode_getattr_maxsz + \
532 encode_restorefh_maxsz + \
533 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700534#define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400535 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536 decode_putfh_maxsz + \
537 decode_savefh_maxsz + \
538 decode_putfh_maxsz + \
Trond Myklebust6caf2c82005-10-27 22:12:43 -0400539 decode_rename_maxsz + \
540 decode_getattr_maxsz + \
541 decode_restorefh_maxsz + \
542 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700543#define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400544 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545 encode_putfh_maxsz + \
546 encode_savefh_maxsz + \
547 encode_putfh_maxsz + \
Trond Myklebust91ba2ee2005-10-27 22:12:42 -0400548 encode_link_maxsz + \
549 decode_getattr_maxsz + \
550 encode_restorefh_maxsz + \
551 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552#define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400553 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700554 decode_putfh_maxsz + \
555 decode_savefh_maxsz + \
556 decode_putfh_maxsz + \
Trond Myklebust91ba2ee2005-10-27 22:12:42 -0400557 decode_link_maxsz + \
558 decode_getattr_maxsz + \
559 decode_restorefh_maxsz + \
560 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700561#define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400562 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700563 encode_putfh_maxsz + \
564 encode_symlink_maxsz + \
565 encode_getattr_maxsz + \
566 encode_getfh_maxsz)
567#define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400568 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700569 decode_putfh_maxsz + \
570 decode_symlink_maxsz + \
571 decode_getattr_maxsz + \
572 decode_getfh_maxsz)
573#define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400574 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575 encode_putfh_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400576 encode_savefh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700577 encode_create_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400578 encode_getfh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579 encode_getattr_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400580 encode_restorefh_maxsz + \
581 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700582#define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400583 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700584 decode_putfh_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400585 decode_savefh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586 decode_create_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400587 decode_getfh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588 decode_getattr_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400589 decode_restorefh_maxsz + \
590 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700591#define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400592 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593 encode_putfh_maxsz + \
594 encode_getattr_maxsz)
595#define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400596 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597 decode_putfh_maxsz + \
598 decode_getattr_maxsz)
599#define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400600 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400602 encode_statfs_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603#define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400604 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700605 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400606 decode_statfs_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607#define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400608 encode_sequence_maxsz + \
Trond Myklebustab91f262007-02-02 14:47:17 -0800609 encode_putfh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700610 encode_getattr_maxsz)
611#define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400612 decode_sequence_maxsz + \
Trond Myklebustab91f262007-02-02 14:47:17 -0800613 decode_putfh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700614 decode_getattr_maxsz)
615#define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400616 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617 encode_putfh_maxsz + \
Trond Myklebustfa178f22006-01-03 09:55:38 +0100618 encode_delegreturn_maxsz + \
619 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620#define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400621 decode_sequence_maxsz + \
Trond Myklebustfa178f22006-01-03 09:55:38 +0100622 decode_delegreturn_maxsz + \
623 decode_getattr_maxsz)
J. Bruce Fields029d1052005-06-22 17:16:22 +0000624#define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400625 encode_sequence_maxsz + \
J. Bruce Fields029d1052005-06-22 17:16:22 +0000626 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400627 encode_getacl_maxsz)
J. Bruce Fields029d1052005-06-22 17:16:22 +0000628#define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400629 decode_sequence_maxsz + \
J. Bruce Fields029d1052005-06-22 17:16:22 +0000630 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400631 decode_getacl_maxsz)
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000632#define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400633 encode_sequence_maxsz + \
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000634 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400635 encode_setacl_maxsz)
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000636#define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400637 decode_sequence_maxsz + \
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000638 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400639 decode_setacl_maxsz)
Trond Myklebust683b57b2006-06-09 09:34:22 -0400640#define NFS4_enc_fs_locations_sz \
641 (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400642 encode_sequence_maxsz + \
Trond Myklebust683b57b2006-06-09 09:34:22 -0400643 encode_putfh_maxsz + \
Trond Myklebuste6889622007-07-02 13:58:30 -0400644 encode_lookup_maxsz + \
645 encode_fs_locations_maxsz)
Trond Myklebust683b57b2006-06-09 09:34:22 -0400646#define NFS4_dec_fs_locations_sz \
647 (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400648 decode_sequence_maxsz + \
Trond Myklebust683b57b2006-06-09 09:34:22 -0400649 decode_putfh_maxsz + \
Trond Myklebuste6889622007-07-02 13:58:30 -0400650 decode_lookup_maxsz + \
651 decode_fs_locations_maxsz)
Benny Halevy99fe60d2009-04-01 09:22:29 -0400652#if defined(CONFIG_NFS_V4_1)
653#define NFS4_enc_exchange_id_sz \
654 (compound_encode_hdr_maxsz + \
655 encode_exchange_id_maxsz)
656#define NFS4_dec_exchange_id_sz \
657 (compound_decode_hdr_maxsz + \
658 decode_exchange_id_maxsz)
Andy Adamsonfc931582009-04-01 09:22:31 -0400659#define NFS4_enc_create_session_sz \
660 (compound_encode_hdr_maxsz + \
661 encode_create_session_maxsz)
662#define NFS4_dec_create_session_sz \
663 (compound_decode_hdr_maxsz + \
664 decode_create_session_maxsz)
Andy Adamson0f3e66c2009-04-01 09:22:34 -0400665#define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
666 encode_destroy_session_maxsz)
667#define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
668 decode_destroy_session_maxsz)
Andy Adamsonfc01cea2009-04-01 09:22:36 -0400669#define NFS4_enc_sequence_sz \
670 (compound_decode_hdr_maxsz + \
671 encode_sequence_maxsz)
672#define NFS4_dec_sequence_sz \
673 (compound_decode_hdr_maxsz + \
674 decode_sequence_maxsz)
Andy Adamson2050f0c2009-04-01 09:22:30 -0400675#define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
676 encode_sequence_maxsz + \
677 encode_putrootfh_maxsz + \
678 encode_fsinfo_maxsz)
679#define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
680 decode_sequence_maxsz + \
681 decode_putrootfh_maxsz + \
682 decode_fsinfo_maxsz)
Ricardo Labiaga18019752009-12-05 16:08:40 -0500683#define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
684 encode_sequence_maxsz + \
685 encode_reclaim_complete_maxsz)
686#define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
687 decode_sequence_maxsz + \
688 decode_reclaim_complete_maxsz)
Alexandros Batsakis2449ea22009-12-05 13:36:55 -0500689
690const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
691 compound_encode_hdr_maxsz +
692 encode_sequence_maxsz +
693 encode_putfh_maxsz +
694 encode_getattr_maxsz) *
695 XDR_UNIT);
696
697const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
698 compound_decode_hdr_maxsz +
699 decode_sequence_maxsz +
700 decode_putfh_maxsz) *
701 XDR_UNIT);
Benny Halevy99fe60d2009-04-01 09:22:29 -0400702#endif /* CONFIG_NFS_V4_1 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703
Trond Myklebustbca79472009-03-11 14:10:26 -0400704static const umode_t nfs_type2fmt[] = {
705 [NF4BAD] = 0,
706 [NF4REG] = S_IFREG,
707 [NF4DIR] = S_IFDIR,
708 [NF4BLK] = S_IFBLK,
709 [NF4CHR] = S_IFCHR,
710 [NF4LNK] = S_IFLNK,
711 [NF4SOCK] = S_IFSOCK,
712 [NF4FIFO] = S_IFIFO,
713 [NF4ATTRDIR] = 0,
714 [NF4NAMEDATTR] = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715};
716
717struct compound_hdr {
718 int32_t status;
719 uint32_t nops;
Andy Adamsond0179312008-12-23 16:06:17 -0500720 __be32 * nops_p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721 uint32_t taglen;
722 char * tag;
Benny Halevy0c4e8c12009-04-01 09:22:07 -0400723 uint32_t replen; /* expected reply words */
Benny Halevy66cc0422009-04-01 09:22:10 -0400724 u32 minorversion;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725};
726
Benny Halevy13c65ce2009-08-14 17:19:25 +0300727static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes)
728{
729 __be32 *p = xdr_reserve_space(xdr, nbytes);
730 BUG_ON(!p);
731 return p;
732}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700733
734static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
735{
Al Viro8687b632006-10-19 23:28:48 -0700736 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700737
738 p = xdr_reserve_space(xdr, 4 + len);
739 BUG_ON(p == NULL);
740 xdr_encode_opaque(p, str, len);
741}
742
Benny Halevy0c4e8c12009-04-01 09:22:07 -0400743static void encode_compound_hdr(struct xdr_stream *xdr,
744 struct rpc_rqst *req,
745 struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746{
Al Viro8687b632006-10-19 23:28:48 -0700747 __be32 *p;
Benny Halevy0c4e8c12009-04-01 09:22:07 -0400748 struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
749
750 /* initialize running count of expected bytes in reply.
751 * NOTE: the replied tag SHOULD be the same is the one sent,
752 * but this is not required as a MUST for the server to do so. */
753 hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700754
755 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag);
756 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN);
Benny Halevy811652b2009-08-14 17:19:34 +0300757 p = reserve_space(xdr, 4 + hdr->taglen + 8);
758 p = xdr_encode_opaque(p, hdr->tag, hdr->taglen);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300759 *p++ = cpu_to_be32(hdr->minorversion);
Andy Adamsond0179312008-12-23 16:06:17 -0500760 hdr->nops_p = p;
Benny Halevy34558512009-08-14 17:19:30 +0300761 *p = cpu_to_be32(hdr->nops);
Andy Adamsond0179312008-12-23 16:06:17 -0500762}
763
764static void encode_nops(struct compound_hdr *hdr)
765{
Andy Adamsonfc931582009-04-01 09:22:31 -0400766 BUG_ON(hdr->nops > NFS4_MAX_OPS);
Andy Adamsond0179312008-12-23 16:06:17 -0500767 *hdr->nops_p = htonl(hdr->nops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700768}
769
770static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
771{
Al Viro8687b632006-10-19 23:28:48 -0700772 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773
774 p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE);
775 BUG_ON(p == NULL);
776 xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE);
777}
778
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500779static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780{
781 char owner_name[IDMAP_NAMESZ];
782 char owner_group[IDMAP_NAMESZ];
783 int owner_namelen = 0;
784 int owner_grouplen = 0;
Al Viro8687b632006-10-19 23:28:48 -0700785 __be32 *p;
786 __be32 *q;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700787 int len;
788 uint32_t bmval0 = 0;
789 uint32_t bmval1 = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700790
791 /*
792 * We reserve enough space to write the entire attribute buffer at once.
793 * In the worst-case, this would be
794 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
795 * = 36 bytes, plus any contribution from variable-length fields
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000796 * such as owner/group.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797 */
798 len = 16;
799
800 /* Sigh */
801 if (iap->ia_valid & ATTR_SIZE)
802 len += 8;
803 if (iap->ia_valid & ATTR_MODE)
804 len += 4;
805 if (iap->ia_valid & ATTR_UID) {
David Howells7539bba2006-08-22 20:06:09 -0400806 owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700807 if (owner_namelen < 0) {
Chuck Leverfe82a182007-09-11 18:01:10 -0400808 dprintk("nfs: couldn't resolve uid %d to string\n",
809 iap->ia_uid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700810 /* XXX */
811 strcpy(owner_name, "nobody");
812 owner_namelen = sizeof("nobody") - 1;
813 /* goto out; */
814 }
815 len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
816 }
817 if (iap->ia_valid & ATTR_GID) {
David Howells7539bba2006-08-22 20:06:09 -0400818 owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700819 if (owner_grouplen < 0) {
Chuck Leverfe82a182007-09-11 18:01:10 -0400820 dprintk("nfs: couldn't resolve gid %d to string\n",
821 iap->ia_gid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822 strcpy(owner_group, "nobody");
823 owner_grouplen = sizeof("nobody") - 1;
824 /* goto out; */
825 }
826 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
827 }
828 if (iap->ia_valid & ATTR_ATIME_SET)
829 len += 16;
830 else if (iap->ia_valid & ATTR_ATIME)
831 len += 4;
832 if (iap->ia_valid & ATTR_MTIME_SET)
833 len += 16;
834 else if (iap->ia_valid & ATTR_MTIME)
835 len += 4;
Benny Halevy13c65ce2009-08-14 17:19:25 +0300836 p = reserve_space(xdr, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700837
838 /*
839 * We write the bitmap length now, but leave the bitmap and the attribute
840 * buffer length to be backfilled at the end of this routine.
841 */
Benny Halevye75bc1c2009-08-14 17:18:54 +0300842 *p++ = cpu_to_be32(2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843 q = p;
844 p += 3;
845
846 if (iap->ia_valid & ATTR_SIZE) {
847 bmval0 |= FATTR4_WORD0_SIZE;
Benny Halevyb95be5a2009-08-14 17:19:01 +0300848 p = xdr_encode_hyper(p, iap->ia_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849 }
850 if (iap->ia_valid & ATTR_MODE) {
851 bmval1 |= FATTR4_WORD1_MODE;
Benny Halevye75bc1c2009-08-14 17:18:54 +0300852 *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853 }
854 if (iap->ia_valid & ATTR_UID) {
855 bmval1 |= FATTR4_WORD1_OWNER;
Benny Halevy811652b2009-08-14 17:19:34 +0300856 p = xdr_encode_opaque(p, owner_name, owner_namelen);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857 }
858 if (iap->ia_valid & ATTR_GID) {
859 bmval1 |= FATTR4_WORD1_OWNER_GROUP;
Benny Halevy811652b2009-08-14 17:19:34 +0300860 p = xdr_encode_opaque(p, owner_group, owner_grouplen);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861 }
862 if (iap->ia_valid & ATTR_ATIME_SET) {
863 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
Benny Halevye75bc1c2009-08-14 17:18:54 +0300864 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
865 *p++ = cpu_to_be32(0);
866 *p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
867 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700868 }
869 else if (iap->ia_valid & ATTR_ATIME) {
870 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
Benny Halevye75bc1c2009-08-14 17:18:54 +0300871 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700872 }
873 if (iap->ia_valid & ATTR_MTIME_SET) {
874 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
Benny Halevye75bc1c2009-08-14 17:18:54 +0300875 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
876 *p++ = cpu_to_be32(0);
877 *p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
878 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879 }
880 else if (iap->ia_valid & ATTR_MTIME) {
881 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
Benny Halevye75bc1c2009-08-14 17:18:54 +0300882 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883 }
Andy Adamson6c0195a2008-12-23 16:06:15 -0500884
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885 /*
886 * Now we backfill the bitmap and the attribute buffer length.
887 */
888 if (len != ((char *)p - (char *)q) + 4) {
Chuck Leverfe82a182007-09-11 18:01:10 -0400889 printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890 len, ((char *)p - (char *)q) + 4);
891 BUG();
892 }
893 len = (char *)p - (char *)q - 12;
894 *q++ = htonl(bmval0);
895 *q++ = htonl(bmval1);
Benny Halevy34558512009-08-14 17:19:30 +0300896 *q = htonl(len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898/* out: */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899}
900
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500901static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902{
Al Viro8687b632006-10-19 23:28:48 -0700903 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700904
Benny Halevy13c65ce2009-08-14 17:19:25 +0300905 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300906 *p++ = cpu_to_be32(OP_ACCESS);
Benny Halevy34558512009-08-14 17:19:30 +0300907 *p = cpu_to_be32(access);
Andy Adamsond0179312008-12-23 16:06:17 -0500908 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -0400909 hdr->replen += decode_access_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700910}
911
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500912static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913{
Al Viro8687b632006-10-19 23:28:48 -0700914 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700915
Benny Halevy13c65ce2009-08-14 17:19:25 +0300916 p = reserve_space(xdr, 8+NFS4_STATEID_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300917 *p++ = cpu_to_be32(OP_CLOSE);
918 *p++ = cpu_to_be32(arg->seqid->sequence->counter);
Benny Halevy34558512009-08-14 17:19:30 +0300919 xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -0500920 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -0400921 hdr->replen += decode_close_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922}
923
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500924static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925{
Al Viro8687b632006-10-19 23:28:48 -0700926 __be32 *p;
Andy Adamson6c0195a2008-12-23 16:06:15 -0500927
Benny Halevy13c65ce2009-08-14 17:19:25 +0300928 p = reserve_space(xdr, 16);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300929 *p++ = cpu_to_be32(OP_COMMIT);
Benny Halevyb95be5a2009-08-14 17:19:01 +0300930 p = xdr_encode_hyper(p, args->offset);
Benny Halevy34558512009-08-14 17:19:30 +0300931 *p = cpu_to_be32(args->count);
Andy Adamsond0179312008-12-23 16:06:17 -0500932 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -0400933 hdr->replen += decode_commit_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934}
935
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500936static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700937{
Al Viro8687b632006-10-19 23:28:48 -0700938 __be32 *p;
Andy Adamson6c0195a2008-12-23 16:06:15 -0500939
Benny Halevy13c65ce2009-08-14 17:19:25 +0300940 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300941 *p++ = cpu_to_be32(OP_CREATE);
Benny Halevy34558512009-08-14 17:19:30 +0300942 *p = cpu_to_be32(create->ftype);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700943
944 switch (create->ftype) {
945 case NF4LNK:
Benny Halevy13c65ce2009-08-14 17:19:25 +0300946 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +0300947 *p = cpu_to_be32(create->u.symlink.len);
Chuck Lever94a6d752006-08-22 20:06:23 -0400948 xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949 break;
950
951 case NF4BLK: case NF4CHR:
Benny Halevy13c65ce2009-08-14 17:19:25 +0300952 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300953 *p++ = cpu_to_be32(create->u.device.specdata1);
Benny Halevy34558512009-08-14 17:19:30 +0300954 *p = cpu_to_be32(create->u.device.specdata2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955 break;
956
957 default:
958 break;
959 }
960
Benny Halevy811652b2009-08-14 17:19:34 +0300961 encode_string(xdr, create->name->len, create->name->name);
Andy Adamsond0179312008-12-23 16:06:17 -0500962 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -0400963 hdr->replen += decode_create_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500965 encode_attrs(xdr, create->attrs, create->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700966}
967
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500968static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700969{
Andy Adamson05d564f2008-12-23 16:06:15 -0500970 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700971
Benny Halevy13c65ce2009-08-14 17:19:25 +0300972 p = reserve_space(xdr, 12);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300973 *p++ = cpu_to_be32(OP_GETATTR);
974 *p++ = cpu_to_be32(1);
Benny Halevy34558512009-08-14 17:19:30 +0300975 *p = cpu_to_be32(bitmap);
Andy Adamsond0179312008-12-23 16:06:17 -0500976 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -0400977 hdr->replen += decode_getattr_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978}
979
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500980static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700981{
Andy Adamson05d564f2008-12-23 16:06:15 -0500982 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983
Benny Halevy13c65ce2009-08-14 17:19:25 +0300984 p = reserve_space(xdr, 16);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300985 *p++ = cpu_to_be32(OP_GETATTR);
986 *p++ = cpu_to_be32(2);
987 *p++ = cpu_to_be32(bm0);
Benny Halevy34558512009-08-14 17:19:30 +0300988 *p = cpu_to_be32(bm1);
Andy Adamsond0179312008-12-23 16:06:17 -0500989 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -0400990 hdr->replen += decode_getattr_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700991}
992
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500993static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994{
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500995 encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0],
996 bitmask[1] & nfs4_fattr_bitmap[1], hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997}
998
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500999static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000{
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001001 encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0],
1002 bitmask[1] & nfs4_fsinfo_bitmap[1], hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003}
1004
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001005static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
Manoj Naik830b8e32006-06-09 09:34:25 -04001006{
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001007 encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0],
1008 bitmask[1] & nfs4_fs_locations_bitmap[1], hdr);
Manoj Naik830b8e32006-06-09 09:34:25 -04001009}
1010
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001011static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012{
Al Viro8687b632006-10-19 23:28:48 -07001013 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014
Benny Halevy13c65ce2009-08-14 17:19:25 +03001015 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001016 *p = cpu_to_be32(OP_GETFH);
Andy Adamsond0179312008-12-23 16:06:17 -05001017 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001018 hdr->replen += decode_getfh_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001019}
1020
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001021static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001022{
Al Viro8687b632006-10-19 23:28:48 -07001023 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001024
Benny Halevy13c65ce2009-08-14 17:19:25 +03001025 p = reserve_space(xdr, 8 + name->len);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001026 *p++ = cpu_to_be32(OP_LINK);
Benny Halevy811652b2009-08-14 17:19:34 +03001027 xdr_encode_opaque(p, name->name, name->len);
Andy Adamsond0179312008-12-23 16:06:17 -05001028 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001029 hdr->replen += decode_link_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001030}
1031
Trond Myklebust911d1aa2006-01-03 09:55:16 +01001032static inline int nfs4_lock_type(struct file_lock *fl, int block)
1033{
1034 if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK)
1035 return block ? NFS4_READW_LT : NFS4_READ_LT;
1036 return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT;
1037}
1038
1039static inline uint64_t nfs4_lock_length(struct file_lock *fl)
1040{
1041 if (fl->fl_end == OFFSET_MAX)
1042 return ~(uint64_t)0;
1043 return fl->fl_end - fl->fl_start + 1;
1044}
1045
Linus Torvalds1da177e2005-04-16 15:20:36 -07001046/*
1047 * opcode,type,reclaim,offset,length,new_lock_owner = 32
1048 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
1049 */
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001050static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051{
Al Viro8687b632006-10-19 23:28:48 -07001052 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053
Benny Halevy13c65ce2009-08-14 17:19:25 +03001054 p = reserve_space(xdr, 32);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001055 *p++ = cpu_to_be32(OP_LOCK);
1056 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block));
1057 *p++ = cpu_to_be32(args->reclaim);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001058 p = xdr_encode_hyper(p, args->fl->fl_start);
1059 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
Benny Halevy34558512009-08-14 17:19:30 +03001060 *p = cpu_to_be32(args->new_lock_owner);
Trond Myklebust911d1aa2006-01-03 09:55:16 +01001061 if (args->new_lock_owner){
Benny Halevy13c65ce2009-08-14 17:19:25 +03001062 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+32);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001063 *p++ = cpu_to_be32(args->open_seqid->sequence->counter);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001064 p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001065 *p++ = cpu_to_be32(args->lock_seqid->sequence->counter);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001066 p = xdr_encode_hyper(p, args->lock_owner.clientid);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001067 *p++ = cpu_to_be32(16);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001068 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
Benny Halevy34558512009-08-14 17:19:30 +03001069 xdr_encode_hyper(p, args->lock_owner.id);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001070 }
1071 else {
Benny Halevy13c65ce2009-08-14 17:19:25 +03001072 p = reserve_space(xdr, NFS4_STATEID_SIZE+4);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001073 p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE);
Benny Halevy34558512009-08-14 17:19:30 +03001074 *p = cpu_to_be32(args->lock_seqid->sequence->counter);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001075 }
Andy Adamsond0179312008-12-23 16:06:17 -05001076 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001077 hdr->replen += decode_lock_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078}
1079
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001080static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081{
Al Viro8687b632006-10-19 23:28:48 -07001082 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083
Benny Halevy13c65ce2009-08-14 17:19:25 +03001084 p = reserve_space(xdr, 52);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001085 *p++ = cpu_to_be32(OP_LOCKT);
1086 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
Benny Halevyb95be5a2009-08-14 17:19:01 +03001087 p = xdr_encode_hyper(p, args->fl->fl_start);
1088 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1089 p = xdr_encode_hyper(p, args->lock_owner.clientid);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001090 *p++ = cpu_to_be32(16);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001091 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
Benny Halevy34558512009-08-14 17:19:30 +03001092 xdr_encode_hyper(p, args->lock_owner.id);
Andy Adamsond0179312008-12-23 16:06:17 -05001093 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001094 hdr->replen += decode_lockt_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095}
1096
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001097static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001098{
Al Viro8687b632006-10-19 23:28:48 -07001099 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001100
Benny Halevy13c65ce2009-08-14 17:19:25 +03001101 p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001102 *p++ = cpu_to_be32(OP_LOCKU);
1103 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1104 *p++ = cpu_to_be32(args->seqid->sequence->counter);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001105 p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001106 p = xdr_encode_hyper(p, args->fl->fl_start);
Benny Halevy34558512009-08-14 17:19:30 +03001107 xdr_encode_hyper(p, nfs4_lock_length(args->fl));
Andy Adamsond0179312008-12-23 16:06:17 -05001108 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001109 hdr->replen += decode_locku_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001110}
1111
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001112static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001113{
1114 int len = name->len;
Al Viro8687b632006-10-19 23:28:48 -07001115 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001116
Benny Halevy13c65ce2009-08-14 17:19:25 +03001117 p = reserve_space(xdr, 8 + len);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001118 *p++ = cpu_to_be32(OP_LOOKUP);
Benny Halevy811652b2009-08-14 17:19:34 +03001119 xdr_encode_opaque(p, name->name, len);
Andy Adamsond0179312008-12-23 16:06:17 -05001120 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001121 hdr->replen += decode_lookup_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001122}
1123
Trond Myklebustdc0b0272008-12-23 15:21:56 -05001124static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001125{
Al Viro8687b632006-10-19 23:28:48 -07001126 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001127
Benny Halevy13c65ce2009-08-14 17:19:25 +03001128 p = reserve_space(xdr, 8);
Trond Myklebustdc0b0272008-12-23 15:21:56 -05001129 switch (fmode & (FMODE_READ|FMODE_WRITE)) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001130 case FMODE_READ:
Benny Halevye75bc1c2009-08-14 17:18:54 +03001131 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ);
Andy Adamson05d564f2008-12-23 16:06:15 -05001132 break;
1133 case FMODE_WRITE:
Benny Halevye75bc1c2009-08-14 17:18:54 +03001134 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001135 break;
1136 case FMODE_READ|FMODE_WRITE:
Benny Halevye75bc1c2009-08-14 17:18:54 +03001137 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH);
Andy Adamson05d564f2008-12-23 16:06:15 -05001138 break;
1139 default:
Benny Halevye75bc1c2009-08-14 17:18:54 +03001140 *p++ = cpu_to_be32(0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001141 }
Benny Halevy34558512009-08-14 17:19:30 +03001142 *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001143}
1144
1145static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1146{
Al Viro8687b632006-10-19 23:28:48 -07001147 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001148 /*
1149 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1150 * owner 4 = 32
1151 */
Benny Halevy13c65ce2009-08-14 17:19:25 +03001152 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001153 *p++ = cpu_to_be32(OP_OPEN);
Benny Halevy34558512009-08-14 17:19:30 +03001154 *p = cpu_to_be32(arg->seqid->sequence->counter);
Trond Myklebustdc0b0272008-12-23 15:21:56 -05001155 encode_share_access(xdr, arg->fmode);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001156 p = reserve_space(xdr, 28);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001157 p = xdr_encode_hyper(p, arg->clientid);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001158 *p++ = cpu_to_be32(16);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001159 p = xdr_encode_opaque_fixed(p, "open id:", 8);
Benny Halevy34558512009-08-14 17:19:30 +03001160 xdr_encode_hyper(p, arg->id);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001161}
1162
1163static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1164{
Al Viro8687b632006-10-19 23:28:48 -07001165 __be32 *p;
Alexandros Batsakis4882ef72009-12-05 13:30:21 -05001166 struct nfs_client *clp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001167
Benny Halevy13c65ce2009-08-14 17:19:25 +03001168 p = reserve_space(xdr, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001169 switch(arg->open_flags & O_EXCL) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001170 case 0:
Benny Halevy34558512009-08-14 17:19:30 +03001171 *p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
Andy Adamson05d564f2008-12-23 16:06:15 -05001172 encode_attrs(xdr, arg->u.attrs, arg->server);
1173 break;
1174 default:
Alexandros Batsakis4882ef72009-12-05 13:30:21 -05001175 clp = arg->server->nfs_client;
1176 if (clp->cl_minorversion > 0) {
1177 if (nfs4_has_persistent_session(clp)) {
1178 *p = cpu_to_be32(NFS4_CREATE_GUARDED);
1179 encode_attrs(xdr, arg->u.attrs, arg->server);
1180 } else {
1181 struct iattr dummy;
1182
1183 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1);
1184 encode_nfs4_verifier(xdr, &arg->u.verifier);
1185 dummy.ia_valid = 0;
1186 encode_attrs(xdr, &dummy, arg->server);
1187 }
1188 } else {
1189 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
1190 encode_nfs4_verifier(xdr, &arg->u.verifier);
1191 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001192 }
1193}
1194
1195static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1196{
Al Viro8687b632006-10-19 23:28:48 -07001197 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001198
Benny Halevy13c65ce2009-08-14 17:19:25 +03001199 p = reserve_space(xdr, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001200 switch (arg->open_flags & O_CREAT) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001201 case 0:
Benny Halevy34558512009-08-14 17:19:30 +03001202 *p = cpu_to_be32(NFS4_OPEN_NOCREATE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001203 break;
1204 default:
1205 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
Benny Halevy34558512009-08-14 17:19:30 +03001206 *p = cpu_to_be32(NFS4_OPEN_CREATE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001207 encode_createmode(xdr, arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001208 }
1209}
1210
Trond Myklebustbd7bf9d2008-12-23 15:21:53 -05001211static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001212{
Al Viro8687b632006-10-19 23:28:48 -07001213 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001214
Benny Halevy13c65ce2009-08-14 17:19:25 +03001215 p = reserve_space(xdr, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001216 switch (delegation_type) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001217 case 0:
Benny Halevy34558512009-08-14 17:19:30 +03001218 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001219 break;
1220 case FMODE_READ:
Benny Halevy34558512009-08-14 17:19:30 +03001221 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ);
Andy Adamson05d564f2008-12-23 16:06:15 -05001222 break;
1223 case FMODE_WRITE|FMODE_READ:
Benny Halevy34558512009-08-14 17:19:30 +03001224 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001225 break;
1226 default:
1227 BUG();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001228 }
1229}
1230
1231static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
1232{
Al Viro8687b632006-10-19 23:28:48 -07001233 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001234
Benny Halevy13c65ce2009-08-14 17:19:25 +03001235 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001236 *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001237 encode_string(xdr, name->len, name->name);
1238}
1239
Trond Myklebustbd7bf9d2008-12-23 15:21:53 -05001240static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001241{
Al Viro8687b632006-10-19 23:28:48 -07001242 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001243
Benny Halevy13c65ce2009-08-14 17:19:25 +03001244 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001245 *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001246 encode_delegation_type(xdr, type);
1247}
1248
1249static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
1250{
Al Viro8687b632006-10-19 23:28:48 -07001251 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252
Benny Halevy13c65ce2009-08-14 17:19:25 +03001253 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001254 *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
Benny Halevy34558512009-08-14 17:19:30 +03001255 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001256 encode_string(xdr, name->len, name->name);
1257}
1258
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001259static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001260{
1261 encode_openhdr(xdr, arg);
1262 encode_opentype(xdr, arg);
1263 switch (arg->claim) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001264 case NFS4_OPEN_CLAIM_NULL:
1265 encode_claim_null(xdr, arg->name);
1266 break;
1267 case NFS4_OPEN_CLAIM_PREVIOUS:
1268 encode_claim_previous(xdr, arg->u.delegation_type);
1269 break;
1270 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
1271 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
1272 break;
1273 default:
1274 BUG();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275 }
Andy Adamsond0179312008-12-23 16:06:17 -05001276 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001277 hdr->replen += decode_open_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001278}
1279
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001280static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001281{
Al Viro8687b632006-10-19 23:28:48 -07001282 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001283
Benny Halevy13c65ce2009-08-14 17:19:25 +03001284 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001285 *p++ = cpu_to_be32(OP_OPEN_CONFIRM);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001286 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
Benny Halevy34558512009-08-14 17:19:30 +03001287 *p = cpu_to_be32(arg->seqid->sequence->counter);
Andy Adamsond0179312008-12-23 16:06:17 -05001288 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001289 hdr->replen += decode_open_confirm_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001290}
1291
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001292static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001293{
Al Viro8687b632006-10-19 23:28:48 -07001294 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001295
Benny Halevy13c65ce2009-08-14 17:19:25 +03001296 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001297 *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001298 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
Benny Halevy34558512009-08-14 17:19:30 +03001299 *p = cpu_to_be32(arg->seqid->sequence->counter);
Trond Myklebustdc0b0272008-12-23 15:21:56 -05001300 encode_share_access(xdr, arg->fmode);
Andy Adamsond0179312008-12-23 16:06:17 -05001301 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001302 hdr->replen += decode_open_downgrade_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001303}
1304
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001305static void
Andy Adamsond0179312008-12-23 16:06:17 -05001306encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001307{
1308 int len = fh->size;
Al Viro8687b632006-10-19 23:28:48 -07001309 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001310
Benny Halevy13c65ce2009-08-14 17:19:25 +03001311 p = reserve_space(xdr, 8 + len);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001312 *p++ = cpu_to_be32(OP_PUTFH);
Benny Halevy811652b2009-08-14 17:19:34 +03001313 xdr_encode_opaque(p, fh->data, len);
Andy Adamsond0179312008-12-23 16:06:17 -05001314 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001315 hdr->replen += decode_putfh_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001316}
1317
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001318static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001319{
Andy Adamson05d564f2008-12-23 16:06:15 -05001320 __be32 *p;
Andy Adamson6c0195a2008-12-23 16:06:15 -05001321
Benny Halevy13c65ce2009-08-14 17:19:25 +03001322 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001323 *p = cpu_to_be32(OP_PUTROOTFH);
Andy Adamsond0179312008-12-23 16:06:17 -05001324 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001325 hdr->replen += decode_putrootfh_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001326}
1327
1328static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx)
1329{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330 nfs4_stateid stateid;
Al Viro8687b632006-10-19 23:28:48 -07001331 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001332
Benny Halevy13c65ce2009-08-14 17:19:25 +03001333 p = reserve_space(xdr, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334 if (ctx->state != NULL) {
1335 nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner);
Benny Halevy34558512009-08-14 17:19:30 +03001336 xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001337 } else
Benny Halevy34558512009-08-14 17:19:30 +03001338 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001339}
1340
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001341static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001342{
Al Viro8687b632006-10-19 23:28:48 -07001343 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344
Benny Halevy13c65ce2009-08-14 17:19:25 +03001345 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001346 *p = cpu_to_be32(OP_READ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001347
1348 encode_stateid(xdr, args->context);
1349
Benny Halevy13c65ce2009-08-14 17:19:25 +03001350 p = reserve_space(xdr, 12);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001351 p = xdr_encode_hyper(p, args->offset);
Benny Halevy34558512009-08-14 17:19:30 +03001352 *p = cpu_to_be32(args->count);
Andy Adamsond0179312008-12-23 16:06:17 -05001353 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001354 hdr->replen += decode_read_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355}
1356
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001357static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001358{
Manoj Naik97d312d2005-06-22 17:16:39 +00001359 uint32_t attrs[2] = {
1360 FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID,
1361 FATTR4_WORD1_MOUNTED_ON_FILEID,
1362 };
Al Viro8687b632006-10-19 23:28:48 -07001363 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001364
Benny Halevy13c65ce2009-08-14 17:19:25 +03001365 p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001366 *p++ = cpu_to_be32(OP_READDIR);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001367 p = xdr_encode_hyper(p, readdir->cookie);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001368 p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001369 *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */
1370 *p++ = cpu_to_be32(readdir->count);
1371 *p++ = cpu_to_be32(2);
Manoj Naik97d312d2005-06-22 17:16:39 +00001372 /* Switch to mounted_on_fileid if the server supports it */
1373 if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)
1374 attrs[0] &= ~FATTR4_WORD0_FILEID;
1375 else
1376 attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
Benny Halevye75bc1c2009-08-14 17:18:54 +03001377 *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]);
Benny Halevy34558512009-08-14 17:19:30 +03001378 *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]);
Andy Adamsond0179312008-12-23 16:06:17 -05001379 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001380 hdr->replen += decode_readdir_maxsz;
Fred Isaman44109242008-04-02 15:21:15 +03001381 dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n",
1382 __func__,
Trond Myklebusteadf4592005-06-22 17:16:39 +00001383 (unsigned long long)readdir->cookie,
1384 ((u32 *)readdir->verifier.data)[0],
1385 ((u32 *)readdir->verifier.data)[1],
1386 attrs[0] & readdir->bitmask[0],
1387 attrs[1] & readdir->bitmask[1]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001388}
1389
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001390static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001391{
Al Viro8687b632006-10-19 23:28:48 -07001392 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001393
Benny Halevy13c65ce2009-08-14 17:19:25 +03001394 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001395 *p = cpu_to_be32(OP_READLINK);
Andy Adamsond0179312008-12-23 16:06:17 -05001396 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001397 hdr->replen += decode_readlink_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001398}
1399
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001400static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001401{
Al Viro8687b632006-10-19 23:28:48 -07001402 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001403
Benny Halevy13c65ce2009-08-14 17:19:25 +03001404 p = reserve_space(xdr, 8 + name->len);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001405 *p++ = cpu_to_be32(OP_REMOVE);
Benny Halevy811652b2009-08-14 17:19:34 +03001406 xdr_encode_opaque(p, name->name, name->len);
Andy Adamsond0179312008-12-23 16:06:17 -05001407 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001408 hdr->replen += decode_remove_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001409}
1410
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001411static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001412{
Al Viro8687b632006-10-19 23:28:48 -07001413 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001414
Benny Halevy811652b2009-08-14 17:19:34 +03001415 p = reserve_space(xdr, 4);
1416 *p = cpu_to_be32(OP_RENAME);
1417 encode_string(xdr, oldname->len, oldname->name);
1418 encode_string(xdr, newname->len, newname->name);
Andy Adamsond0179312008-12-23 16:06:17 -05001419 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001420 hdr->replen += decode_rename_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001421}
1422
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001423static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001424{
Al Viro8687b632006-10-19 23:28:48 -07001425 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001426
Benny Halevy13c65ce2009-08-14 17:19:25 +03001427 p = reserve_space(xdr, 12);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001428 *p++ = cpu_to_be32(OP_RENEW);
Benny Halevy34558512009-08-14 17:19:30 +03001429 xdr_encode_hyper(p, client_stateid->cl_clientid);
Andy Adamsond0179312008-12-23 16:06:17 -05001430 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001431 hdr->replen += decode_renew_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001432}
1433
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001434static void
Andy Adamsond0179312008-12-23 16:06:17 -05001435encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04001436{
Al Viro8687b632006-10-19 23:28:48 -07001437 __be32 *p;
Trond Myklebust56ae19f2005-10-27 22:12:40 -04001438
Benny Halevy13c65ce2009-08-14 17:19:25 +03001439 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001440 *p = cpu_to_be32(OP_RESTOREFH);
Andy Adamsond0179312008-12-23 16:06:17 -05001441 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001442 hdr->replen += decode_restorefh_maxsz;
Trond Myklebust56ae19f2005-10-27 22:12:40 -04001443}
1444
1445static int
Andy Adamsond0179312008-12-23 16:06:17 -05001446encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr)
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001447{
Al Viro8687b632006-10-19 23:28:48 -07001448 __be32 *p;
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001449
Benny Halevy13c65ce2009-08-14 17:19:25 +03001450 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001451 *p++ = cpu_to_be32(OP_SETATTR);
Benny Halevy34558512009-08-14 17:19:30 +03001452 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001453 p = reserve_space(xdr, 2*4);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001454 *p++ = cpu_to_be32(1);
Benny Halevy34558512009-08-14 17:19:30 +03001455 *p = cpu_to_be32(FATTR4_WORD0_ACL);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001456 if (arg->acl_len % 4)
1457 return -EINVAL;
Benny Halevy13c65ce2009-08-14 17:19:25 +03001458 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001459 *p = cpu_to_be32(arg->acl_len);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001460 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
Andy Adamsond0179312008-12-23 16:06:17 -05001461 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001462 hdr->replen += decode_setacl_maxsz;
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001463 return 0;
1464}
1465
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001466static void
Andy Adamsond0179312008-12-23 16:06:17 -05001467encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001468{
Al Viro8687b632006-10-19 23:28:48 -07001469 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470
Benny Halevy13c65ce2009-08-14 17:19:25 +03001471 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001472 *p = cpu_to_be32(OP_SAVEFH);
Andy Adamsond0179312008-12-23 16:06:17 -05001473 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001474 hdr->replen += decode_savefh_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001475}
1476
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001477static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001478{
Al Viro8687b632006-10-19 23:28:48 -07001479 __be32 *p;
Andy Adamson6c0195a2008-12-23 16:06:15 -05001480
Benny Halevy13c65ce2009-08-14 17:19:25 +03001481 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001482 *p++ = cpu_to_be32(OP_SETATTR);
Benny Halevy34558512009-08-14 17:19:30 +03001483 xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -05001484 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001485 hdr->replen += decode_setattr_maxsz;
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001486 encode_attrs(xdr, arg->iap, server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001487}
1488
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001489static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001490{
Al Viro8687b632006-10-19 23:28:48 -07001491 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001492
Benny Halevy13c65ce2009-08-14 17:19:25 +03001493 p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001494 *p++ = cpu_to_be32(OP_SETCLIENTID);
Benny Halevy34558512009-08-14 17:19:30 +03001495 xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001496
1497 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001498 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001499 *p = cpu_to_be32(setclientid->sc_prog);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001500 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1501 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001502 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001503 *p = cpu_to_be32(setclientid->sc_cb_ident);
Andy Adamsond0179312008-12-23 16:06:17 -05001504 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001505 hdr->replen += decode_setclientid_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001506}
1507
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001508static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001509{
Andy Adamson05d564f2008-12-23 16:06:15 -05001510 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001511
Benny Halevy13c65ce2009-08-14 17:19:25 +03001512 p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001513 *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001514 p = xdr_encode_hyper(p, client_state->cl_clientid);
Benny Halevy34558512009-08-14 17:19:30 +03001515 xdr_encode_opaque_fixed(p, client_state->cl_confirm.data, NFS4_VERIFIER_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -05001516 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001517 hdr->replen += decode_setclientid_confirm_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001518}
1519
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001520static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001521{
Al Viro8687b632006-10-19 23:28:48 -07001522 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001523
Benny Halevy13c65ce2009-08-14 17:19:25 +03001524 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001525 *p = cpu_to_be32(OP_WRITE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001526
1527 encode_stateid(xdr, args->context);
1528
Benny Halevy13c65ce2009-08-14 17:19:25 +03001529 p = reserve_space(xdr, 16);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001530 p = xdr_encode_hyper(p, args->offset);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001531 *p++ = cpu_to_be32(args->stable);
Benny Halevy34558512009-08-14 17:19:30 +03001532 *p = cpu_to_be32(args->count);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001533
1534 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
Andy Adamsond0179312008-12-23 16:06:17 -05001535 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001536 hdr->replen += decode_write_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001537}
1538
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001539static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001540{
Al Viro8687b632006-10-19 23:28:48 -07001541 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001542
Benny Halevy13c65ce2009-08-14 17:19:25 +03001543 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001544
Benny Halevye75bc1c2009-08-14 17:18:54 +03001545 *p++ = cpu_to_be32(OP_DELEGRETURN);
Benny Halevy34558512009-08-14 17:19:30 +03001546 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -05001547 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001548 hdr->replen += decode_delegreturn_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001549}
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001550
Benny Halevy99fe60d2009-04-01 09:22:29 -04001551#if defined(CONFIG_NFS_V4_1)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001552/* NFSv4.1 operations */
Benny Halevy99fe60d2009-04-01 09:22:29 -04001553static void encode_exchange_id(struct xdr_stream *xdr,
1554 struct nfs41_exchange_id_args *args,
1555 struct compound_hdr *hdr)
1556{
1557 __be32 *p;
1558
Benny Halevy13c65ce2009-08-14 17:19:25 +03001559 p = reserve_space(xdr, 4 + sizeof(args->verifier->data));
Benny Halevye75bc1c2009-08-14 17:18:54 +03001560 *p++ = cpu_to_be32(OP_EXCHANGE_ID);
Benny Halevy34558512009-08-14 17:19:30 +03001561 xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data));
Benny Halevy99fe60d2009-04-01 09:22:29 -04001562
1563 encode_string(xdr, args->id_len, args->id);
1564
Benny Halevy13c65ce2009-08-14 17:19:25 +03001565 p = reserve_space(xdr, 12);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001566 *p++ = cpu_to_be32(args->flags);
1567 *p++ = cpu_to_be32(0); /* zero length state_protect4_a */
Benny Halevy34558512009-08-14 17:19:30 +03001568 *p = cpu_to_be32(0); /* zero length implementation id array */
Benny Halevy99fe60d2009-04-01 09:22:29 -04001569 hdr->nops++;
1570 hdr->replen += decode_exchange_id_maxsz;
1571}
Andy Adamsonfc931582009-04-01 09:22:31 -04001572
1573static void encode_create_session(struct xdr_stream *xdr,
1574 struct nfs41_create_session_args *args,
1575 struct compound_hdr *hdr)
1576{
1577 __be32 *p;
1578 char machine_name[NFS4_MAX_MACHINE_NAME_LEN];
1579 uint32_t len;
1580 struct nfs_client *clp = args->client;
1581
Andy Adamsonfc931582009-04-01 09:22:31 -04001582 len = scnprintf(machine_name, sizeof(machine_name), "%s",
1583 clp->cl_ipaddr);
Benny Halevy42edd692009-08-14 17:19:13 +03001584
Benny Halevy13c65ce2009-08-14 17:19:25 +03001585 p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001586 *p++ = cpu_to_be32(OP_CREATE_SESSION);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001587 p = xdr_encode_hyper(p, clp->cl_ex_clid);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001588 *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */
1589 *p++ = cpu_to_be32(args->flags); /*flags */
Andy Adamsonfc931582009-04-01 09:22:31 -04001590
Andy Adamsonfc931582009-04-01 09:22:31 -04001591 /* Fore Channel */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001592 *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */
1593 *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */
1594 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */
1595 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1596 *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */
1597 *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */
1598 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
Andy Adamsonfc931582009-04-01 09:22:31 -04001599
1600 /* Back Channel */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001601 *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */
1602 *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */
1603 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */
1604 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1605 *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */
1606 *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */
1607 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
Andy Adamsonfc931582009-04-01 09:22:31 -04001608
Benny Halevye75bc1c2009-08-14 17:18:54 +03001609 *p++ = cpu_to_be32(args->cb_program); /* cb_program */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001610 *p++ = cpu_to_be32(1);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001611 *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */
Andy Adamsonfc931582009-04-01 09:22:31 -04001612
1613 /* authsys_parms rfc1831 */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001614 *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */
Benny Halevy811652b2009-08-14 17:19:34 +03001615 p = xdr_encode_opaque(p, machine_name, len);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001616 *p++ = cpu_to_be32(0); /* UID */
1617 *p++ = cpu_to_be32(0); /* GID */
Benny Halevy34558512009-08-14 17:19:30 +03001618 *p = cpu_to_be32(0); /* No more gids */
Andy Adamsonfc931582009-04-01 09:22:31 -04001619 hdr->nops++;
1620 hdr->replen += decode_create_session_maxsz;
1621}
Andy Adamson0f3e66c2009-04-01 09:22:34 -04001622
1623static void encode_destroy_session(struct xdr_stream *xdr,
1624 struct nfs4_session *session,
1625 struct compound_hdr *hdr)
1626{
1627 __be32 *p;
Benny Halevy13c65ce2009-08-14 17:19:25 +03001628 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001629 *p++ = cpu_to_be32(OP_DESTROY_SESSION);
Benny Halevy34558512009-08-14 17:19:30 +03001630 xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04001631 hdr->nops++;
1632 hdr->replen += decode_destroy_session_maxsz;
1633}
Ricardo Labiaga18019752009-12-05 16:08:40 -05001634
1635static void encode_reclaim_complete(struct xdr_stream *xdr,
1636 struct nfs41_reclaim_complete_args *args,
1637 struct compound_hdr *hdr)
1638{
1639 __be32 *p;
1640
1641 p = reserve_space(xdr, 8);
1642 *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE);
1643 *p++ = cpu_to_be32(args->one_fs);
1644 hdr->nops++;
1645 hdr->replen += decode_reclaim_complete_maxsz;
1646}
Benny Halevy99fe60d2009-04-01 09:22:29 -04001647#endif /* CONFIG_NFS_V4_1 */
1648
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001649static void encode_sequence(struct xdr_stream *xdr,
1650 const struct nfs4_sequence_args *args,
1651 struct compound_hdr *hdr)
1652{
1653#if defined(CONFIG_NFS_V4_1)
1654 struct nfs4_session *session = args->sa_session;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001655 struct nfs4_slot_table *tp;
1656 struct nfs4_slot *slot;
1657 __be32 *p;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001658
1659 if (!session)
1660 return;
1661
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001662 tp = &session->fc_slot_table;
1663
1664 WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE);
1665 slot = tp->slots + args->sa_slotid;
1666
Benny Halevy13c65ce2009-08-14 17:19:25 +03001667 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001668 *p++ = cpu_to_be32(OP_SEQUENCE);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001669
1670 /*
1671 * Sessionid + seqid + slotid + max slotid + cache_this
1672 */
1673 dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
1674 "max_slotid=%d cache_this=%d\n",
1675 __func__,
1676 ((u32 *)session->sess_id.data)[0],
1677 ((u32 *)session->sess_id.data)[1],
1678 ((u32 *)session->sess_id.data)[2],
1679 ((u32 *)session->sess_id.data)[3],
1680 slot->seq_nr, args->sa_slotid,
1681 tp->highest_used_slotid, args->sa_cache_this);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001682 p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001683 *p++ = cpu_to_be32(slot->seq_nr);
1684 *p++ = cpu_to_be32(args->sa_slotid);
1685 *p++ = cpu_to_be32(tp->highest_used_slotid);
Benny Halevy34558512009-08-14 17:19:30 +03001686 *p = cpu_to_be32(args->sa_cache_this);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001687 hdr->nops++;
1688 hdr->replen += decode_sequence_maxsz;
1689#endif /* CONFIG_NFS_V4_1 */
1690}
1691
Linus Torvalds1da177e2005-04-16 15:20:36 -07001692/*
1693 * END OF "GENERIC" ENCODE ROUTINES.
1694 */
1695
Benny Halevy66cc0422009-04-01 09:22:10 -04001696static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
1697{
1698#if defined(CONFIG_NFS_V4_1)
1699 if (args->sa_session)
1700 return args->sa_session->clp->cl_minorversion;
1701#endif /* CONFIG_NFS_V4_1 */
1702 return 0;
1703}
1704
Linus Torvalds1da177e2005-04-16 15:20:36 -07001705/*
1706 * Encode an ACCESS request
1707 */
Al Viro8687b632006-10-19 23:28:48 -07001708static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001709{
1710 struct xdr_stream xdr;
1711 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001712 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001713 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001714
1715 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001716 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001717 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001718 encode_putfh(&xdr, args->fh, &hdr);
1719 encode_access(&xdr, args->access, &hdr);
1720 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001721 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001722 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001723}
1724
1725/*
1726 * Encode LOOKUP request
1727 */
Al Viro8687b632006-10-19 23:28:48 -07001728static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001729{
1730 struct xdr_stream xdr;
1731 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001732 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001733 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001734
1735 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001736 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001737 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001738 encode_putfh(&xdr, args->dir_fh, &hdr);
1739 encode_lookup(&xdr, args->name, &hdr);
1740 encode_getfh(&xdr, &hdr);
1741 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001742 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001743 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001744}
1745
1746/*
1747 * Encode LOOKUP_ROOT request
1748 */
Al Viro8687b632006-10-19 23:28:48 -07001749static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001750{
1751 struct xdr_stream xdr;
1752 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001753 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001754 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001755
1756 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001757 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001758 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001759 encode_putrootfh(&xdr, &hdr);
1760 encode_getfh(&xdr, &hdr);
1761 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001762 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001763 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001764}
1765
1766/*
1767 * Encode REMOVE request
1768 */
Trond Myklebust4fdc17b2007-07-14 15:39:57 -04001769static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001770{
1771 struct xdr_stream xdr;
1772 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001773 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001774 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001775
1776 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001777 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001778 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001779 encode_putfh(&xdr, args->fh, &hdr);
1780 encode_remove(&xdr, &args->name, &hdr);
1781 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001782 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001783 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001784}
1785
1786/*
1787 * Encode RENAME request
1788 */
Al Viro8687b632006-10-19 23:28:48 -07001789static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001790{
1791 struct xdr_stream xdr;
1792 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001793 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001794 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001795
1796 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001797 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001798 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001799 encode_putfh(&xdr, args->old_dir, &hdr);
1800 encode_savefh(&xdr, &hdr);
1801 encode_putfh(&xdr, args->new_dir, &hdr);
1802 encode_rename(&xdr, args->old_name, args->new_name, &hdr);
1803 encode_getfattr(&xdr, args->bitmask, &hdr);
1804 encode_restorefh(&xdr, &hdr);
1805 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001806 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001807 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001808}
1809
1810/*
1811 * Encode LINK request
1812 */
Al Viro8687b632006-10-19 23:28:48 -07001813static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001814{
1815 struct xdr_stream xdr;
1816 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001817 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001818 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001819
1820 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001821 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001822 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001823 encode_putfh(&xdr, args->fh, &hdr);
1824 encode_savefh(&xdr, &hdr);
1825 encode_putfh(&xdr, args->dir_fh, &hdr);
1826 encode_link(&xdr, args->name, &hdr);
1827 encode_getfattr(&xdr, args->bitmask, &hdr);
1828 encode_restorefh(&xdr, &hdr);
1829 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001830 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001831 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001832}
1833
1834/*
1835 * Encode CREATE request
1836 */
Al Viro8687b632006-10-19 23:28:48 -07001837static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001838{
1839 struct xdr_stream xdr;
1840 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001841 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001842 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001843
1844 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001845 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001846 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001847 encode_putfh(&xdr, args->dir_fh, &hdr);
1848 encode_savefh(&xdr, &hdr);
1849 encode_create(&xdr, args, &hdr);
1850 encode_getfh(&xdr, &hdr);
1851 encode_getfattr(&xdr, args->bitmask, &hdr);
1852 encode_restorefh(&xdr, &hdr);
1853 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001854 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001855 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001856}
1857
1858/*
1859 * Encode SYMLINK request
1860 */
Al Viro8687b632006-10-19 23:28:48 -07001861static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001862{
1863 return nfs4_xdr_enc_create(req, p, args);
1864}
1865
1866/*
1867 * Encode GETATTR request
1868 */
Al Viro8687b632006-10-19 23:28:48 -07001869static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001870{
1871 struct xdr_stream xdr;
1872 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001873 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001874 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001875
1876 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001877 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001878 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001879 encode_putfh(&xdr, args->fh, &hdr);
1880 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001881 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001882 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001883}
1884
1885/*
1886 * Encode a CLOSE request
1887 */
Al Viro8687b632006-10-19 23:28:48 -07001888static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001889{
Andy Adamson05d564f2008-12-23 16:06:15 -05001890 struct xdr_stream xdr;
1891 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001892 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Andy Adamson05d564f2008-12-23 16:06:15 -05001893 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001894
Andy Adamson05d564f2008-12-23 16:06:15 -05001895 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001896 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001897 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001898 encode_putfh(&xdr, args->fh, &hdr);
1899 encode_close(&xdr, args, &hdr);
1900 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001901 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001902 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001903}
1904
1905/*
1906 * Encode an OPEN request
1907 */
Al Viro8687b632006-10-19 23:28:48 -07001908static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001909{
1910 struct xdr_stream xdr;
1911 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001912 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001913 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001914
1915 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001916 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001917 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001918 encode_putfh(&xdr, args->fh, &hdr);
1919 encode_savefh(&xdr, &hdr);
1920 encode_open(&xdr, args, &hdr);
1921 encode_getfh(&xdr, &hdr);
1922 encode_getfattr(&xdr, args->bitmask, &hdr);
1923 encode_restorefh(&xdr, &hdr);
1924 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001925 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001926 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001927}
1928
1929/*
1930 * Encode an OPEN_CONFIRM request
1931 */
Al Viro8687b632006-10-19 23:28:48 -07001932static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001933{
1934 struct xdr_stream xdr;
1935 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05001936 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001937 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001938
1939 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001940 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001941 encode_putfh(&xdr, args->fh, &hdr);
1942 encode_open_confirm(&xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001943 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001944 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001945}
1946
1947/*
1948 * Encode an OPEN request with no attributes.
1949 */
Al Viro8687b632006-10-19 23:28:48 -07001950static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001951{
1952 struct xdr_stream xdr;
1953 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001954 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001955 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001956
1957 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001958 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001959 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001960 encode_putfh(&xdr, args->fh, &hdr);
1961 encode_open(&xdr, args, &hdr);
1962 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001963 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001964 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001965}
1966
1967/*
1968 * Encode an OPEN_DOWNGRADE request
1969 */
Al Viro8687b632006-10-19 23:28:48 -07001970static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001971{
1972 struct xdr_stream xdr;
1973 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001974 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001975 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001976
1977 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001978 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001979 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001980 encode_putfh(&xdr, args->fh, &hdr);
1981 encode_open_downgrade(&xdr, args, &hdr);
1982 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001983 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001984 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001985}
1986
1987/*
1988 * Encode a LOCK request
1989 */
Al Viro8687b632006-10-19 23:28:48 -07001990static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001991{
1992 struct xdr_stream xdr;
1993 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001994 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001995 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001996
1997 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001998 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001999 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002000 encode_putfh(&xdr, args->fh, &hdr);
2001 encode_lock(&xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002002 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002003 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002004}
2005
2006/*
2007 * Encode a LOCKT request
2008 */
Al Viro8687b632006-10-19 23:28:48 -07002009static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002010{
2011 struct xdr_stream xdr;
2012 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002013 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002014 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002015
2016 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002017 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002018 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002019 encode_putfh(&xdr, args->fh, &hdr);
2020 encode_lockt(&xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002021 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002022 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002023}
2024
2025/*
2026 * Encode a LOCKU request
2027 */
Al Viro8687b632006-10-19 23:28:48 -07002028static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002029{
2030 struct xdr_stream xdr;
2031 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002032 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002033 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002034
2035 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002036 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002037 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002038 encode_putfh(&xdr, args->fh, &hdr);
2039 encode_locku(&xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002040 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002041 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002042}
2043
2044/*
2045 * Encode a READLINK request
2046 */
Al Viro8687b632006-10-19 23:28:48 -07002047static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002048{
2049 struct xdr_stream xdr;
2050 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002051 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002052 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002053
2054 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002055 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002056 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002057 encode_putfh(&xdr, args->fh, &hdr);
2058 encode_readlink(&xdr, args, req, &hdr);
Trond Myklebuste3a535e2007-07-19 10:03:38 -04002059
Benny Halevy28f56692009-04-01 09:22:09 -04002060 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
Trond Myklebuste3a535e2007-07-19 10:03:38 -04002061 args->pgbase, args->pglen);
Andy Adamsond0179312008-12-23 16:06:17 -05002062 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002063 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002064}
2065
2066/*
2067 * Encode a READDIR request
2068 */
Al Viro8687b632006-10-19 23:28:48 -07002069static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002070{
2071 struct xdr_stream xdr;
2072 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002073 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002074 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002075
2076 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002077 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002078 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002079 encode_putfh(&xdr, args->fh, &hdr);
2080 encode_readdir(&xdr, args, req, &hdr);
Trond Myklebustd6ac02d2007-07-19 10:03:37 -04002081
Benny Halevy28f56692009-04-01 09:22:09 -04002082 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
Trond Myklebustd6ac02d2007-07-19 10:03:37 -04002083 args->pgbase, args->count);
2084 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
Benny Halevy28f56692009-04-01 09:22:09 -04002085 __func__, hdr.replen << 2, args->pages,
Trond Myklebustd6ac02d2007-07-19 10:03:37 -04002086 args->pgbase, args->count);
Andy Adamsond0179312008-12-23 16:06:17 -05002087 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002088 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002089}
2090
2091/*
2092 * Encode a READ request
2093 */
Al Viro8687b632006-10-19 23:28:48 -07002094static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002095{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002096 struct xdr_stream xdr;
2097 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002098 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002099 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002100
2101 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002102 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002103 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002104 encode_putfh(&xdr, args->fh, &hdr);
2105 encode_read(&xdr, args, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002106
Benny Halevy28f56692009-04-01 09:22:09 -04002107 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002108 args->pages, args->pgbase, args->count);
\"Talpey, Thomas\4f22ccc2007-09-10 13:44:58 -04002109 req->rq_rcv_buf.flags |= XDRBUF_READ;
Andy Adamsond0179312008-12-23 16:06:17 -05002110 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002111 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002112}
2113
2114/*
2115 * Encode an SETATTR request
2116 */
Al Viro8687b632006-10-19 23:28:48 -07002117static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002118{
Andy Adamson05d564f2008-12-23 16:06:15 -05002119 struct xdr_stream xdr;
2120 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002121 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Andy Adamson05d564f2008-12-23 16:06:15 -05002122 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002123
Andy Adamson05d564f2008-12-23 16:06:15 -05002124 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002125 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002126 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002127 encode_putfh(&xdr, args->fh, &hdr);
2128 encode_setattr(&xdr, args, args->server, &hdr);
2129 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002130 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002131 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002132}
2133
2134/*
J. Bruce Fields029d1052005-06-22 17:16:22 +00002135 * Encode a GETACL request
2136 */
2137static int
Al Viro8687b632006-10-19 23:28:48 -07002138nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p,
J. Bruce Fields029d1052005-06-22 17:16:22 +00002139 struct nfs_getaclargs *args)
2140{
2141 struct xdr_stream xdr;
J. Bruce Fields029d1052005-06-22 17:16:22 +00002142 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002143 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
J. Bruce Fields029d1052005-06-22 17:16:22 +00002144 };
Benny Halevy28f56692009-04-01 09:22:09 -04002145 uint32_t replen;
J. Bruce Fields029d1052005-06-22 17:16:22 +00002146
2147 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002148 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002149 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002150 encode_putfh(&xdr, args->fh, &hdr);
J. Bruce Fieldsd327cf72009-12-03 08:10:17 -05002151 replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1;
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002152 encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr);
2153
Benny Halevy28f56692009-04-01 09:22:09 -04002154 xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
J. Bruce Fields029d1052005-06-22 17:16:22 +00002155 args->acl_pages, args->acl_pgbase, args->acl_len);
Andy Adamsond0179312008-12-23 16:06:17 -05002156 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002157 return 0;
J. Bruce Fields029d1052005-06-22 17:16:22 +00002158}
2159
2160/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002161 * Encode a WRITE request
2162 */
Al Viro8687b632006-10-19 23:28:48 -07002163static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002164{
2165 struct xdr_stream xdr;
2166 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002167 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002168 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002169
2170 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002171 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002172 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002173 encode_putfh(&xdr, args->fh, &hdr);
2174 encode_write(&xdr, args, &hdr);
\"Talpey, Thomas\4f22ccc2007-09-10 13:44:58 -04002175 req->rq_snd_buf.flags |= XDRBUF_WRITE;
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002176 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002177 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002178 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002179}
2180
2181/*
2182 * a COMMIT request
2183 */
Al Viro8687b632006-10-19 23:28:48 -07002184static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002185{
2186 struct xdr_stream xdr;
2187 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002188 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002189 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002190
2191 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002192 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002193 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002194 encode_putfh(&xdr, args->fh, &hdr);
2195 encode_commit(&xdr, args, &hdr);
2196 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002197 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002198 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002199}
2200
2201/*
2202 * FSINFO request
2203 */
Al Viro8687b632006-10-19 23:28:48 -07002204static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002205{
2206 struct xdr_stream xdr;
2207 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002208 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002209 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002210
2211 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002212 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002213 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002214 encode_putfh(&xdr, args->fh, &hdr);
2215 encode_fsinfo(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002216 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002217 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002218}
2219
2220/*
2221 * a PATHCONF request
2222 */
Al Viro8687b632006-10-19 23:28:48 -07002223static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002224{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002225 struct xdr_stream xdr;
2226 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002227 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002228 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002229
2230 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002231 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002232 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002233 encode_putfh(&xdr, args->fh, &hdr);
2234 encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0],
2235 &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002236 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002237 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002238}
2239
2240/*
2241 * a STATFS request
2242 */
Al Viro8687b632006-10-19 23:28:48 -07002243static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002244{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002245 struct xdr_stream xdr;
2246 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002247 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002248 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002249
2250 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002251 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002252 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002253 encode_putfh(&xdr, args->fh, &hdr);
2254 encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0],
2255 args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002256 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002257 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002258}
2259
2260/*
2261 * GETATTR_BITMAP request
2262 */
Benny Halevy43652ad2009-04-01 09:21:54 -04002263static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p,
2264 struct nfs4_server_caps_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002265{
2266 struct xdr_stream xdr;
2267 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002268 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002269 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002270
2271 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002272 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002273 encode_sequence(&xdr, &args->seq_args, &hdr);
Benny Halevy43652ad2009-04-01 09:21:54 -04002274 encode_putfh(&xdr, args->fhandle, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002275 encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
2276 FATTR4_WORD0_LINK_SUPPORT|
2277 FATTR4_WORD0_SYMLINK_SUPPORT|
2278 FATTR4_WORD0_ACLSUPPORT, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002279 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002280 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002281}
2282
2283/*
2284 * a RENEW request
2285 */
Al Viro8687b632006-10-19 23:28:48 -07002286static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002287{
2288 struct xdr_stream xdr;
2289 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002290 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002291 };
2292
2293 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002294 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002295 encode_renew(&xdr, clp, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002296 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002297 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002298}
2299
2300/*
2301 * a SETCLIENTID request
2302 */
Al Viro8687b632006-10-19 23:28:48 -07002303static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002304{
2305 struct xdr_stream xdr;
2306 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002307 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002308 };
2309
2310 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002311 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002312 encode_setclientid(&xdr, sc, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002313 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002314 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002315}
2316
2317/*
2318 * a SETCLIENTID_CONFIRM request
2319 */
Al Viro8687b632006-10-19 23:28:48 -07002320static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002321{
2322 struct xdr_stream xdr;
2323 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002324 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002325 };
2326 const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002327
2328 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002329 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002330 encode_setclientid_confirm(&xdr, clp, &hdr);
2331 encode_putrootfh(&xdr, &hdr);
2332 encode_fsinfo(&xdr, lease_bitmap, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002333 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002334 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002335}
2336
2337/*
2338 * DELEGRETURN request
2339 */
Al Viro8687b632006-10-19 23:28:48 -07002340static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002341{
2342 struct xdr_stream xdr;
2343 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002344 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002345 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002346
2347 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002348 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002349 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002350 encode_putfh(&xdr, args->fhandle, &hdr);
2351 encode_delegreturn(&xdr, args->stateid, &hdr);
2352 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002353 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002354 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002355}
2356
2357/*
Trond Myklebust683b57b2006-06-09 09:34:22 -04002358 * Encode FS_LOCATIONS request
2359 */
Al Viro8687b632006-10-19 23:28:48 -07002360static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args)
Trond Myklebust683b57b2006-06-09 09:34:22 -04002361{
2362 struct xdr_stream xdr;
2363 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002364 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Trond Myklebust683b57b2006-06-09 09:34:22 -04002365 };
Benny Halevy28f56692009-04-01 09:22:09 -04002366 uint32_t replen;
Trond Myklebust683b57b2006-06-09 09:34:22 -04002367
2368 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002369 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002370 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002371 encode_putfh(&xdr, args->dir_fh, &hdr);
2372 encode_lookup(&xdr, args->name, &hdr);
Benny Halevy28f56692009-04-01 09:22:09 -04002373 replen = hdr.replen; /* get the attribute into args->page */
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002374 encode_fs_locations(&xdr, args->bitmask, &hdr);
2375
Benny Halevy28f56692009-04-01 09:22:09 -04002376 xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
Trond Myklebust683b57b2006-06-09 09:34:22 -04002377 0, PAGE_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -05002378 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002379 return 0;
Trond Myklebust683b57b2006-06-09 09:34:22 -04002380}
2381
Benny Halevy99fe60d2009-04-01 09:22:29 -04002382#if defined(CONFIG_NFS_V4_1)
2383/*
2384 * EXCHANGE_ID request
2385 */
2386static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p,
2387 struct nfs41_exchange_id_args *args)
2388{
2389 struct xdr_stream xdr;
2390 struct compound_hdr hdr = {
2391 .minorversion = args->client->cl_minorversion,
2392 };
2393
2394 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2395 encode_compound_hdr(&xdr, req, &hdr);
2396 encode_exchange_id(&xdr, args, &hdr);
2397 encode_nops(&hdr);
2398 return 0;
2399}
Andy Adamson2050f0c2009-04-01 09:22:30 -04002400
2401/*
Andy Adamsonfc931582009-04-01 09:22:31 -04002402 * a CREATE_SESSION request
2403 */
2404static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p,
2405 struct nfs41_create_session_args *args)
2406{
2407 struct xdr_stream xdr;
2408 struct compound_hdr hdr = {
2409 .minorversion = args->client->cl_minorversion,
2410 };
2411
2412 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2413 encode_compound_hdr(&xdr, req, &hdr);
2414 encode_create_session(&xdr, args, &hdr);
2415 encode_nops(&hdr);
2416 return 0;
2417}
2418
2419/*
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002420 * a DESTROY_SESSION request
2421 */
2422static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p,
2423 struct nfs4_session *session)
2424{
2425 struct xdr_stream xdr;
2426 struct compound_hdr hdr = {
2427 .minorversion = session->clp->cl_minorversion,
2428 };
2429
2430 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2431 encode_compound_hdr(&xdr, req, &hdr);
2432 encode_destroy_session(&xdr, session, &hdr);
2433 encode_nops(&hdr);
2434 return 0;
2435}
2436
2437/*
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002438 * a SEQUENCE request
2439 */
2440static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p,
2441 struct nfs4_sequence_args *args)
2442{
2443 struct xdr_stream xdr;
2444 struct compound_hdr hdr = {
2445 .minorversion = nfs4_xdr_minorversion(args),
2446 };
2447
2448 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2449 encode_compound_hdr(&xdr, req, &hdr);
2450 encode_sequence(&xdr, args, &hdr);
2451 encode_nops(&hdr);
2452 return 0;
2453}
2454
2455/*
Andy Adamson2050f0c2009-04-01 09:22:30 -04002456 * a GET_LEASE_TIME request
2457 */
2458static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p,
2459 struct nfs4_get_lease_time_args *args)
2460{
2461 struct xdr_stream xdr;
2462 struct compound_hdr hdr = {
2463 .minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
2464 };
2465 const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
2466
2467 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2468 encode_compound_hdr(&xdr, req, &hdr);
2469 encode_sequence(&xdr, &args->la_seq_args, &hdr);
2470 encode_putrootfh(&xdr, &hdr);
2471 encode_fsinfo(&xdr, lease_bitmap, &hdr);
2472 encode_nops(&hdr);
2473 return 0;
2474}
Ricardo Labiaga18019752009-12-05 16:08:40 -05002475
2476/*
2477 * a RECLAIM_COMPLETE request
2478 */
2479static int nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, uint32_t *p,
2480 struct nfs41_reclaim_complete_args *args)
2481{
2482 struct xdr_stream xdr;
2483 struct compound_hdr hdr = {
2484 .minorversion = nfs4_xdr_minorversion(&args->seq_args)
2485 };
2486
2487 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2488 encode_compound_hdr(&xdr, req, &hdr);
2489 encode_sequence(&xdr, &args->seq_args, &hdr);
2490 encode_reclaim_complete(&xdr, args, &hdr);
2491 encode_nops(&hdr);
2492 return 0;
2493}
2494
Benny Halevy99fe60d2009-04-01 09:22:29 -04002495#endif /* CONFIG_NFS_V4_1 */
2496
Benny Halevy686841b2009-08-14 17:19:48 +03002497static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
2498{
2499 dprintk("nfs: %s: prematurely hit end of receive buffer. "
2500 "Remaining buffer length is %tu words.\n",
2501 func, xdr->end - xdr->p);
2502}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002503
Trond Myklebust683b57b2006-06-09 09:34:22 -04002504static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002505{
Al Viro8687b632006-10-19 23:28:48 -07002506 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002507
Benny Halevyc0eae662009-08-14 17:20:14 +03002508 p = xdr_inline_decode(xdr, 4);
2509 if (unlikely(!p))
2510 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002511 *len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03002512 p = xdr_inline_decode(xdr, *len);
2513 if (unlikely(!p))
2514 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002515 *string = (char *)p;
2516 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002517out_overflow:
2518 print_overflow_msg(__func__, xdr);
2519 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002520}
2521
2522static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
2523{
Al Viro8687b632006-10-19 23:28:48 -07002524 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002525
Benny Halevyc0eae662009-08-14 17:20:14 +03002526 p = xdr_inline_decode(xdr, 8);
2527 if (unlikely(!p))
2528 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03002529 hdr->status = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03002530 hdr->taglen = be32_to_cpup(p);
Andy Adamson6c0195a2008-12-23 16:06:15 -05002531
Benny Halevyc0eae662009-08-14 17:20:14 +03002532 p = xdr_inline_decode(xdr, hdr->taglen + 4);
2533 if (unlikely(!p))
2534 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002535 hdr->tag = (char *)p;
2536 p += XDR_QUADLEN(hdr->taglen);
Benny Halevycccddf42009-08-14 17:20:19 +03002537 hdr->nops = be32_to_cpup(p);
Benny Halevyaadf6152008-12-23 16:06:13 -05002538 if (unlikely(hdr->nops < 1))
2539 return nfs4_stat_to_errno(hdr->status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002540 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002541out_overflow:
2542 print_overflow_msg(__func__, xdr);
2543 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002544}
2545
2546static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
2547{
Al Viro8687b632006-10-19 23:28:48 -07002548 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002549 uint32_t opnum;
2550 int32_t nfserr;
2551
Benny Halevyc0eae662009-08-14 17:20:14 +03002552 p = xdr_inline_decode(xdr, 8);
2553 if (unlikely(!p))
2554 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03002555 opnum = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002556 if (opnum != expected) {
Chuck Leverfe82a182007-09-11 18:01:10 -04002557 dprintk("nfs: Server returned operation"
2558 " %d but we issued a request for %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002559 opnum, expected);
2560 return -EIO;
2561 }
Benny Halevycccddf42009-08-14 17:20:19 +03002562 nfserr = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002563 if (nfserr != NFS_OK)
Benny Halevy856dff32008-03-31 17:39:06 +03002564 return nfs4_stat_to_errno(nfserr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002565 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002566out_overflow:
2567 print_overflow_msg(__func__, xdr);
2568 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002569}
2570
2571/* Dummy routine */
David Howellsadfa6f92006-08-22 20:06:08 -04002572static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002573{
Al Viro8687b632006-10-19 23:28:48 -07002574 __be32 *p;
Trond Myklebust683b57b2006-06-09 09:34:22 -04002575 unsigned int strlen;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002576 char *str;
2577
Benny Halevyc0eae662009-08-14 17:20:14 +03002578 p = xdr_inline_decode(xdr, 12);
2579 if (likely(p))
2580 return decode_opaque_inline(xdr, &strlen, &str);
2581 print_overflow_msg(__func__, xdr);
2582 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002583}
2584
2585static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
2586{
Al Viro8687b632006-10-19 23:28:48 -07002587 uint32_t bmlen;
2588 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002589
Benny Halevyc0eae662009-08-14 17:20:14 +03002590 p = xdr_inline_decode(xdr, 4);
2591 if (unlikely(!p))
2592 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002593 bmlen = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002594
2595 bitmap[0] = bitmap[1] = 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002596 p = xdr_inline_decode(xdr, (bmlen << 2));
2597 if (unlikely(!p))
2598 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002599 if (bmlen > 0) {
Benny Halevy6f723f72009-08-14 17:19:37 +03002600 bitmap[0] = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002601 if (bmlen > 1)
Benny Halevycccddf42009-08-14 17:20:19 +03002602 bitmap[1] = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002603 }
2604 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002605out_overflow:
2606 print_overflow_msg(__func__, xdr);
2607 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002608}
2609
Al Viro8687b632006-10-19 23:28:48 -07002610static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002611{
Al Viro8687b632006-10-19 23:28:48 -07002612 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002613
Benny Halevyc0eae662009-08-14 17:20:14 +03002614 p = xdr_inline_decode(xdr, 4);
2615 if (unlikely(!p))
2616 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002617 *attrlen = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002618 *savep = xdr->p;
2619 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002620out_overflow:
2621 print_overflow_msg(__func__, xdr);
2622 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002623}
2624
2625static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
2626{
2627 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
2628 decode_attr_bitmap(xdr, bitmask);
2629 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
2630 } else
2631 bitmask[0] = bitmask[1] = 0;
Fred Isaman44109242008-04-02 15:21:15 +03002632 dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002633 return 0;
2634}
2635
2636static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
2637{
Al Viro8687b632006-10-19 23:28:48 -07002638 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04002639 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002640
2641 *type = 0;
2642 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
2643 return -EIO;
2644 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002645 p = xdr_inline_decode(xdr, 4);
2646 if (unlikely(!p))
2647 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002648 *type = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002649 if (*type < NF4REG || *type > NF4NAMEDATTR) {
Harvey Harrison3110ff82008-05-02 13:42:44 -07002650 dprintk("%s: bad type %d\n", __func__, *type);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002651 return -EIO;
2652 }
2653 bitmap[0] &= ~FATTR4_WORD0_TYPE;
Trond Myklebust409924e2009-03-11 14:10:27 -04002654 ret = NFS_ATTR_FATTR_TYPE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002655 }
Trond Myklebustbca79472009-03-11 14:10:26 -04002656 dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]);
Trond Myklebust409924e2009-03-11 14:10:27 -04002657 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03002658out_overflow:
2659 print_overflow_msg(__func__, xdr);
2660 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002661}
2662
2663static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
2664{
Al Viro8687b632006-10-19 23:28:48 -07002665 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04002666 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002667
2668 *change = 0;
2669 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
2670 return -EIO;
2671 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002672 p = xdr_inline_decode(xdr, 8);
2673 if (unlikely(!p))
2674 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002675 xdr_decode_hyper(p, change);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002676 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
Trond Myklebust409924e2009-03-11 14:10:27 -04002677 ret = NFS_ATTR_FATTR_CHANGE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002678 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002679 dprintk("%s: change attribute=%Lu\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002680 (unsigned long long)*change);
Trond Myklebust409924e2009-03-11 14:10:27 -04002681 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03002682out_overflow:
2683 print_overflow_msg(__func__, xdr);
2684 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002685}
2686
2687static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
2688{
Al Viro8687b632006-10-19 23:28:48 -07002689 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04002690 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002691
2692 *size = 0;
2693 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
2694 return -EIO;
2695 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002696 p = xdr_inline_decode(xdr, 8);
2697 if (unlikely(!p))
2698 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002699 xdr_decode_hyper(p, size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002700 bitmap[0] &= ~FATTR4_WORD0_SIZE;
Trond Myklebust409924e2009-03-11 14:10:27 -04002701 ret = NFS_ATTR_FATTR_SIZE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002702 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002703 dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size);
Trond Myklebust409924e2009-03-11 14:10:27 -04002704 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03002705out_overflow:
2706 print_overflow_msg(__func__, xdr);
2707 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002708}
2709
2710static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2711{
Al Viro8687b632006-10-19 23:28:48 -07002712 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002713
2714 *res = 0;
2715 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
2716 return -EIO;
2717 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002718 p = xdr_inline_decode(xdr, 4);
2719 if (unlikely(!p))
2720 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002721 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002722 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
2723 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002724 dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002725 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002726out_overflow:
2727 print_overflow_msg(__func__, xdr);
2728 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002729}
2730
2731static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2732{
Al Viro8687b632006-10-19 23:28:48 -07002733 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002734
2735 *res = 0;
2736 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
2737 return -EIO;
2738 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002739 p = xdr_inline_decode(xdr, 4);
2740 if (unlikely(!p))
2741 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002742 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002743 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
2744 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002745 dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002746 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002747out_overflow:
2748 print_overflow_msg(__func__, xdr);
2749 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002750}
2751
Trond Myklebust8b4bdcf2006-06-09 09:34:19 -04002752static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002753{
Al Viro8687b632006-10-19 23:28:48 -07002754 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04002755 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002756
2757 fsid->major = 0;
2758 fsid->minor = 0;
2759 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
2760 return -EIO;
2761 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002762 p = xdr_inline_decode(xdr, 16);
2763 if (unlikely(!p))
2764 goto out_overflow;
Benny Halevy3ceb4db2009-08-14 17:19:41 +03002765 p = xdr_decode_hyper(p, &fsid->major);
Benny Halevycccddf42009-08-14 17:20:19 +03002766 xdr_decode_hyper(p, &fsid->minor);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002767 bitmap[0] &= ~FATTR4_WORD0_FSID;
Trond Myklebust409924e2009-03-11 14:10:27 -04002768 ret = NFS_ATTR_FATTR_FSID;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002769 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002770 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002771 (unsigned long long)fsid->major,
2772 (unsigned long long)fsid->minor);
Trond Myklebust409924e2009-03-11 14:10:27 -04002773 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03002774out_overflow:
2775 print_overflow_msg(__func__, xdr);
2776 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002777}
2778
2779static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2780{
Al Viro8687b632006-10-19 23:28:48 -07002781 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002782
2783 *res = 60;
2784 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
2785 return -EIO;
2786 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002787 p = xdr_inline_decode(xdr, 4);
2788 if (unlikely(!p))
2789 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002790 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002791 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
2792 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002793 dprintk("%s: file size=%u\n", __func__, (unsigned int)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002794 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002795out_overflow:
2796 print_overflow_msg(__func__, xdr);
2797 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002798}
2799
2800static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2801{
Al Viro8687b632006-10-19 23:28:48 -07002802 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002803
2804 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
2805 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
2806 return -EIO;
2807 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002808 p = xdr_inline_decode(xdr, 4);
2809 if (unlikely(!p))
2810 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002811 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002812 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
2813 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002814 dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002815 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002816out_overflow:
2817 print_overflow_msg(__func__, xdr);
2818 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002819}
2820
2821static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
2822{
Al Viro8687b632006-10-19 23:28:48 -07002823 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04002824 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002825
2826 *fileid = 0;
2827 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
2828 return -EIO;
2829 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002830 p = xdr_inline_decode(xdr, 8);
2831 if (unlikely(!p))
2832 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002833 xdr_decode_hyper(p, fileid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002834 bitmap[0] &= ~FATTR4_WORD0_FILEID;
Trond Myklebust409924e2009-03-11 14:10:27 -04002835 ret = NFS_ATTR_FATTR_FILEID;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002836 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002837 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
Trond Myklebust409924e2009-03-11 14:10:27 -04002838 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03002839out_overflow:
2840 print_overflow_msg(__func__, xdr);
2841 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002842}
2843
Manoj Naik99baf622006-06-09 09:34:24 -04002844static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
2845{
Al Viro8687b632006-10-19 23:28:48 -07002846 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04002847 int ret = 0;
Manoj Naik99baf622006-06-09 09:34:24 -04002848
2849 *fileid = 0;
2850 if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U)))
2851 return -EIO;
2852 if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002853 p = xdr_inline_decode(xdr, 8);
2854 if (unlikely(!p))
2855 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002856 xdr_decode_hyper(p, fileid);
Manoj Naik99baf622006-06-09 09:34:24 -04002857 bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
Trond Myklebust409924e2009-03-11 14:10:27 -04002858 ret = NFS_ATTR_FATTR_FILEID;
Manoj Naik99baf622006-06-09 09:34:24 -04002859 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002860 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
Trond Myklebust409924e2009-03-11 14:10:27 -04002861 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03002862out_overflow:
2863 print_overflow_msg(__func__, xdr);
2864 return -EIO;
Manoj Naik99baf622006-06-09 09:34:24 -04002865}
2866
Linus Torvalds1da177e2005-04-16 15:20:36 -07002867static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2868{
Al Viro8687b632006-10-19 23:28:48 -07002869 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002870 int status = 0;
2871
2872 *res = 0;
2873 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
2874 return -EIO;
2875 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002876 p = xdr_inline_decode(xdr, 8);
2877 if (unlikely(!p))
2878 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002879 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002880 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
2881 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002882 dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002883 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03002884out_overflow:
2885 print_overflow_msg(__func__, xdr);
2886 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002887}
2888
2889static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2890{
Al Viro8687b632006-10-19 23:28:48 -07002891 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002892 int status = 0;
2893
2894 *res = 0;
2895 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
2896 return -EIO;
2897 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002898 p = xdr_inline_decode(xdr, 8);
2899 if (unlikely(!p))
2900 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002901 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002902 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
2903 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002904 dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002905 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03002906out_overflow:
2907 print_overflow_msg(__func__, xdr);
2908 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002909}
2910
2911static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2912{
Al Viro8687b632006-10-19 23:28:48 -07002913 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002914 int status = 0;
2915
2916 *res = 0;
2917 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
2918 return -EIO;
2919 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002920 p = xdr_inline_decode(xdr, 8);
2921 if (unlikely(!p))
2922 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002923 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002924 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
2925 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002926 dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002927 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03002928out_overflow:
2929 print_overflow_msg(__func__, xdr);
2930 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002931}
2932
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002933static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
2934{
Chuck Lever464ad6b2007-10-26 13:32:08 -04002935 u32 n;
Al Viro8687b632006-10-19 23:28:48 -07002936 __be32 *p;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002937 int status = 0;
2938
Benny Halevyc0eae662009-08-14 17:20:14 +03002939 p = xdr_inline_decode(xdr, 4);
2940 if (unlikely(!p))
2941 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002942 n = be32_to_cpup(p);
Andy Adamson33a43f22006-06-09 09:34:30 -04002943 if (n == 0)
2944 goto root_path;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002945 dprintk("path ");
2946 path->ncomponents = 0;
2947 while (path->ncomponents < n) {
2948 struct nfs4_string *component = &path->components[path->ncomponents];
2949 status = decode_opaque_inline(xdr, &component->len, &component->data);
2950 if (unlikely(status != 0))
2951 goto out_eio;
2952 if (path->ncomponents != n)
2953 dprintk("/");
2954 dprintk("%s", component->data);
2955 if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS)
2956 path->ncomponents++;
2957 else {
2958 dprintk("cannot parse %d components in path\n", n);
2959 goto out_eio;
2960 }
2961 }
2962out:
2963 dprintk("\n");
2964 return status;
Andy Adamson33a43f22006-06-09 09:34:30 -04002965root_path:
2966/* a root pathname is sent as a zero component4 */
2967 path->ncomponents = 1;
2968 path->components[0].len=0;
2969 path->components[0].data=NULL;
2970 dprintk("path /\n");
2971 goto out;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002972out_eio:
2973 dprintk(" status %d", status);
2974 status = -EIO;
2975 goto out;
Benny Halevyc0eae662009-08-14 17:20:14 +03002976out_overflow:
2977 print_overflow_msg(__func__, xdr);
2978 return -EIO;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002979}
2980
2981static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
Trond Myklebust683b57b2006-06-09 09:34:22 -04002982{
2983 int n;
Al Viro8687b632006-10-19 23:28:48 -07002984 __be32 *p;
Trond Myklebust683b57b2006-06-09 09:34:22 -04002985 int status = -EIO;
2986
2987 if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U)))
2988 goto out;
2989 status = 0;
2990 if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS)))
2991 goto out;
Harvey Harrison3110ff82008-05-02 13:42:44 -07002992 dprintk("%s: fsroot ", __func__);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002993 status = decode_pathname(xdr, &res->fs_path);
Trond Myklebust683b57b2006-06-09 09:34:22 -04002994 if (unlikely(status != 0))
2995 goto out;
Benny Halevyc0eae662009-08-14 17:20:14 +03002996 p = xdr_inline_decode(xdr, 4);
2997 if (unlikely(!p))
2998 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002999 n = be32_to_cpup(p);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003000 if (n <= 0)
3001 goto out_eio;
3002 res->nlocations = 0;
3003 while (res->nlocations < n) {
Chuck Lever464ad6b2007-10-26 13:32:08 -04003004 u32 m;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003005 struct nfs4_fs_location *loc = &res->locations[res->nlocations];
Trond Myklebust683b57b2006-06-09 09:34:22 -04003006
Benny Halevyc0eae662009-08-14 17:20:14 +03003007 p = xdr_inline_decode(xdr, 4);
3008 if (unlikely(!p))
3009 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003010 m = be32_to_cpup(p);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003011
3012 loc->nservers = 0;
Harvey Harrison3110ff82008-05-02 13:42:44 -07003013 dprintk("%s: servers ", __func__);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003014 while (loc->nservers < m) {
3015 struct nfs4_string *server = &loc->servers[loc->nservers];
3016 status = decode_opaque_inline(xdr, &server->len, &server->data);
3017 if (unlikely(status != 0))
3018 goto out_eio;
3019 dprintk("%s ", server->data);
3020 if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS)
3021 loc->nservers++;
3022 else {
Chuck Lever464ad6b2007-10-26 13:32:08 -04003023 unsigned int i;
3024 dprintk("%s: using first %u of %u servers "
3025 "returned for location %u\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003026 __func__,
Chuck Lever464ad6b2007-10-26 13:32:08 -04003027 NFS4_FS_LOCATION_MAXSERVERS,
3028 m, res->nlocations);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003029 for (i = loc->nservers; i < m; i++) {
Trond Myklebust2e42c3e2007-05-14 17:20:41 -04003030 unsigned int len;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003031 char *data;
3032 status = decode_opaque_inline(xdr, &len, &data);
3033 if (unlikely(status != 0))
3034 goto out_eio;
3035 }
3036 }
3037 }
3038 status = decode_pathname(xdr, &loc->rootpath);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003039 if (unlikely(status != 0))
3040 goto out_eio;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003041 if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES)
Trond Myklebust683b57b2006-06-09 09:34:22 -04003042 res->nlocations++;
3043 }
Trond Myklebust409924e2009-03-11 14:10:27 -04003044 if (res->nlocations != 0)
3045 status = NFS_ATTR_FATTR_V4_REFERRAL;
Trond Myklebust683b57b2006-06-09 09:34:22 -04003046out:
Harvey Harrison3110ff82008-05-02 13:42:44 -07003047 dprintk("%s: fs_locations done, error = %d\n", __func__, status);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003048 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003049out_overflow:
3050 print_overflow_msg(__func__, xdr);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003051out_eio:
3052 status = -EIO;
3053 goto out;
3054}
3055
Linus Torvalds1da177e2005-04-16 15:20:36 -07003056static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3057{
Al Viro8687b632006-10-19 23:28:48 -07003058 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003059 int status = 0;
3060
3061 *res = 0;
3062 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
3063 return -EIO;
3064 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003065 p = xdr_inline_decode(xdr, 8);
3066 if (unlikely(!p))
3067 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003068 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003069 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
3070 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003071 dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003072 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003073out_overflow:
3074 print_overflow_msg(__func__, xdr);
3075 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003076}
3077
3078static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
3079{
Al Viro8687b632006-10-19 23:28:48 -07003080 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003081 int status = 0;
3082
3083 *maxlink = 1;
3084 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
3085 return -EIO;
3086 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003087 p = xdr_inline_decode(xdr, 4);
3088 if (unlikely(!p))
3089 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003090 *maxlink = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003091 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
3092 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003093 dprintk("%s: maxlink=%u\n", __func__, *maxlink);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003094 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003095out_overflow:
3096 print_overflow_msg(__func__, xdr);
3097 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003098}
3099
3100static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
3101{
Al Viro8687b632006-10-19 23:28:48 -07003102 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003103 int status = 0;
3104
3105 *maxname = 1024;
3106 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
3107 return -EIO;
3108 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003109 p = xdr_inline_decode(xdr, 4);
3110 if (unlikely(!p))
3111 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003112 *maxname = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003113 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
3114 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003115 dprintk("%s: maxname=%u\n", __func__, *maxname);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003116 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003117out_overflow:
3118 print_overflow_msg(__func__, xdr);
3119 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003120}
3121
3122static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3123{
Al Viro8687b632006-10-19 23:28:48 -07003124 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003125 int status = 0;
3126
3127 *res = 1024;
3128 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
3129 return -EIO;
3130 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
3131 uint64_t maxread;
Benny Halevyc0eae662009-08-14 17:20:14 +03003132 p = xdr_inline_decode(xdr, 8);
3133 if (unlikely(!p))
3134 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003135 xdr_decode_hyper(p, &maxread);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003136 if (maxread > 0x7FFFFFFF)
3137 maxread = 0x7FFFFFFF;
3138 *res = (uint32_t)maxread;
3139 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
3140 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003141 dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003142 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003143out_overflow:
3144 print_overflow_msg(__func__, xdr);
3145 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003146}
3147
3148static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3149{
Al Viro8687b632006-10-19 23:28:48 -07003150 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003151 int status = 0;
3152
3153 *res = 1024;
3154 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
3155 return -EIO;
3156 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
3157 uint64_t maxwrite;
Benny Halevyc0eae662009-08-14 17:20:14 +03003158 p = xdr_inline_decode(xdr, 8);
3159 if (unlikely(!p))
3160 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003161 xdr_decode_hyper(p, &maxwrite);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003162 if (maxwrite > 0x7FFFFFFF)
3163 maxwrite = 0x7FFFFFFF;
3164 *res = (uint32_t)maxwrite;
3165 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
3166 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003167 dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003168 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003169out_overflow:
3170 print_overflow_msg(__func__, xdr);
3171 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003172}
3173
Trond Myklebustbca79472009-03-11 14:10:26 -04003174static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003175{
Trond Myklebustbca79472009-03-11 14:10:26 -04003176 uint32_t tmp;
Al Viro8687b632006-10-19 23:28:48 -07003177 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003178 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003179
3180 *mode = 0;
3181 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
3182 return -EIO;
3183 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003184 p = xdr_inline_decode(xdr, 4);
3185 if (unlikely(!p))
3186 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003187 tmp = be32_to_cpup(p);
Trond Myklebustbca79472009-03-11 14:10:26 -04003188 *mode = tmp & ~S_IFMT;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003189 bitmap[1] &= ~FATTR4_WORD1_MODE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003190 ret = NFS_ATTR_FATTR_MODE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003191 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003192 dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode);
Trond Myklebust409924e2009-03-11 14:10:27 -04003193 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003194out_overflow:
3195 print_overflow_msg(__func__, xdr);
3196 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003197}
3198
3199static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
3200{
Al Viro8687b632006-10-19 23:28:48 -07003201 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003202 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003203
3204 *nlink = 1;
3205 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
3206 return -EIO;
3207 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003208 p = xdr_inline_decode(xdr, 4);
3209 if (unlikely(!p))
3210 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003211 *nlink = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003212 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
Trond Myklebust409924e2009-03-11 14:10:27 -04003213 ret = NFS_ATTR_FATTR_NLINK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003214 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003215 dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink);
Trond Myklebust409924e2009-03-11 14:10:27 -04003216 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003217out_overflow:
3218 print_overflow_msg(__func__, xdr);
3219 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003220}
3221
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003222static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
3223 struct nfs_client *clp, uint32_t *uid, int may_sleep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003224{
Al Viro8687b632006-10-19 23:28:48 -07003225 uint32_t len;
3226 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003227 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003228
3229 *uid = -2;
3230 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
3231 return -EIO;
3232 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003233 p = xdr_inline_decode(xdr, 4);
3234 if (unlikely(!p))
3235 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003236 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003237 p = xdr_inline_decode(xdr, len);
3238 if (unlikely(!p))
3239 goto out_overflow;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003240 if (!may_sleep) {
3241 /* do nothing */
3242 } else if (len < XDR_MAX_NETOBJ) {
Trond Myklebust409924e2009-03-11 14:10:27 -04003243 if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0)
3244 ret = NFS_ATTR_FATTR_OWNER;
3245 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07003246 dprintk("%s: nfs_map_name_to_uid failed!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003247 __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003248 } else
Chuck Leverfe82a182007-09-11 18:01:10 -04003249 dprintk("%s: name too long (%u)!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003250 __func__, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003251 bitmap[1] &= ~FATTR4_WORD1_OWNER;
3252 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003253 dprintk("%s: uid=%d\n", __func__, (int)*uid);
Trond Myklebust409924e2009-03-11 14:10:27 -04003254 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003255out_overflow:
3256 print_overflow_msg(__func__, xdr);
3257 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003258}
3259
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003260static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
3261 struct nfs_client *clp, uint32_t *gid, int may_sleep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003262{
Al Viro8687b632006-10-19 23:28:48 -07003263 uint32_t len;
3264 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003265 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003266
3267 *gid = -2;
3268 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
3269 return -EIO;
3270 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003271 p = xdr_inline_decode(xdr, 4);
3272 if (unlikely(!p))
3273 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003274 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003275 p = xdr_inline_decode(xdr, len);
3276 if (unlikely(!p))
3277 goto out_overflow;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003278 if (!may_sleep) {
3279 /* do nothing */
3280 } else if (len < XDR_MAX_NETOBJ) {
Trond Myklebust409924e2009-03-11 14:10:27 -04003281 if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0)
3282 ret = NFS_ATTR_FATTR_GROUP;
3283 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07003284 dprintk("%s: nfs_map_group_to_gid failed!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003285 __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003286 } else
Chuck Leverfe82a182007-09-11 18:01:10 -04003287 dprintk("%s: name too long (%u)!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003288 __func__, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003289 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
3290 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003291 dprintk("%s: gid=%d\n", __func__, (int)*gid);
Trond Myklebust409924e2009-03-11 14:10:27 -04003292 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003293out_overflow:
3294 print_overflow_msg(__func__, xdr);
3295 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003296}
3297
3298static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
3299{
Al Viro8687b632006-10-19 23:28:48 -07003300 uint32_t major = 0, minor = 0;
3301 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003302 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003303
3304 *rdev = MKDEV(0,0);
3305 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
3306 return -EIO;
3307 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
3308 dev_t tmp;
3309
Benny Halevyc0eae662009-08-14 17:20:14 +03003310 p = xdr_inline_decode(xdr, 8);
3311 if (unlikely(!p))
3312 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003313 major = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03003314 minor = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003315 tmp = MKDEV(major, minor);
3316 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
3317 *rdev = tmp;
3318 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
Trond Myklebust409924e2009-03-11 14:10:27 -04003319 ret = NFS_ATTR_FATTR_RDEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003320 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003321 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor);
Trond Myklebust409924e2009-03-11 14:10:27 -04003322 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003323out_overflow:
3324 print_overflow_msg(__func__, xdr);
3325 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003326}
3327
3328static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3329{
Al Viro8687b632006-10-19 23:28:48 -07003330 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003331 int status = 0;
3332
3333 *res = 0;
3334 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
3335 return -EIO;
3336 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003337 p = xdr_inline_decode(xdr, 8);
3338 if (unlikely(!p))
3339 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003340 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003341 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
3342 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003343 dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003344 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003345out_overflow:
3346 print_overflow_msg(__func__, xdr);
3347 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003348}
3349
3350static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3351{
Al Viro8687b632006-10-19 23:28:48 -07003352 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003353 int status = 0;
3354
3355 *res = 0;
3356 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
3357 return -EIO;
3358 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003359 p = xdr_inline_decode(xdr, 8);
3360 if (unlikely(!p))
3361 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003362 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003363 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
3364 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003365 dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003366 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003367out_overflow:
3368 print_overflow_msg(__func__, xdr);
3369 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003370}
3371
3372static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3373{
Al Viro8687b632006-10-19 23:28:48 -07003374 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003375 int status = 0;
3376
3377 *res = 0;
3378 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
3379 return -EIO;
3380 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003381 p = xdr_inline_decode(xdr, 8);
3382 if (unlikely(!p))
3383 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003384 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003385 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
3386 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003387 dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003388 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003389out_overflow:
3390 print_overflow_msg(__func__, xdr);
3391 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003392}
3393
3394static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
3395{
Al Viro8687b632006-10-19 23:28:48 -07003396 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003397 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003398
3399 *used = 0;
3400 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
3401 return -EIO;
3402 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003403 p = xdr_inline_decode(xdr, 8);
3404 if (unlikely(!p))
3405 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003406 xdr_decode_hyper(p, used);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003407 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
Trond Myklebust409924e2009-03-11 14:10:27 -04003408 ret = NFS_ATTR_FATTR_SPACE_USED;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003409 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003410 dprintk("%s: space used=%Lu\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003411 (unsigned long long)*used);
Trond Myklebust409924e2009-03-11 14:10:27 -04003412 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003413out_overflow:
3414 print_overflow_msg(__func__, xdr);
3415 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003416}
3417
3418static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
3419{
Al Viro8687b632006-10-19 23:28:48 -07003420 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003421 uint64_t sec;
3422 uint32_t nsec;
3423
Benny Halevyc0eae662009-08-14 17:20:14 +03003424 p = xdr_inline_decode(xdr, 12);
3425 if (unlikely(!p))
3426 goto out_overflow;
Benny Halevy3ceb4db2009-08-14 17:19:41 +03003427 p = xdr_decode_hyper(p, &sec);
Benny Halevycccddf42009-08-14 17:20:19 +03003428 nsec = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003429 time->tv_sec = (time_t)sec;
3430 time->tv_nsec = (long)nsec;
3431 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003432out_overflow:
3433 print_overflow_msg(__func__, xdr);
3434 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003435}
3436
3437static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
3438{
3439 int status = 0;
3440
3441 time->tv_sec = 0;
3442 time->tv_nsec = 0;
3443 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
3444 return -EIO;
3445 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
3446 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04003447 if (status == 0)
3448 status = NFS_ATTR_FATTR_ATIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003449 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
3450 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003451 dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003452 return status;
3453}
3454
3455static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
3456{
3457 int status = 0;
3458
3459 time->tv_sec = 0;
3460 time->tv_nsec = 0;
3461 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
3462 return -EIO;
3463 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
3464 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04003465 if (status == 0)
3466 status = NFS_ATTR_FATTR_CTIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003467 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
3468 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003469 dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003470 return status;
3471}
3472
3473static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
3474{
3475 int status = 0;
3476
3477 time->tv_sec = 0;
3478 time->tv_nsec = 0;
3479 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
3480 return -EIO;
3481 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
3482 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04003483 if (status == 0)
3484 status = NFS_ATTR_FATTR_MTIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003485 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
3486 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003487 dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003488 return status;
3489}
3490
Al Viro8687b632006-10-19 23:28:48 -07003491static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003492{
3493 unsigned int attrwords = XDR_QUADLEN(attrlen);
3494 unsigned int nwords = xdr->p - savep;
3495
3496 if (unlikely(attrwords != nwords)) {
Chuck Leverfe82a182007-09-11 18:01:10 -04003497 dprintk("%s: server returned incorrect attribute length: "
3498 "%u %c %u\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003499 __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003500 attrwords << 2,
3501 (attrwords < nwords) ? '<' : '>',
3502 nwords << 2);
3503 return -EIO;
3504 }
3505 return 0;
3506}
3507
3508static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3509{
Al Viro8687b632006-10-19 23:28:48 -07003510 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003511
Benny Halevyc0eae662009-08-14 17:20:14 +03003512 p = xdr_inline_decode(xdr, 20);
3513 if (unlikely(!p))
3514 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003515 cinfo->atomic = be32_to_cpup(p++);
Benny Halevy3ceb4db2009-08-14 17:19:41 +03003516 p = xdr_decode_hyper(p, &cinfo->before);
Benny Halevycccddf42009-08-14 17:20:19 +03003517 xdr_decode_hyper(p, &cinfo->after);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003518 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003519out_overflow:
3520 print_overflow_msg(__func__, xdr);
3521 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003522}
3523
3524static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
3525{
Al Viro8687b632006-10-19 23:28:48 -07003526 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003527 uint32_t supp, acc;
3528 int status;
3529
3530 status = decode_op_hdr(xdr, OP_ACCESS);
3531 if (status)
3532 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003533 p = xdr_inline_decode(xdr, 8);
3534 if (unlikely(!p))
3535 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003536 supp = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03003537 acc = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003538 access->supported = supp;
3539 access->access = acc;
3540 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003541out_overflow:
3542 print_overflow_msg(__func__, xdr);
3543 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003544}
3545
Benny Halevy07d30432009-08-14 17:19:52 +03003546static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003547{
Al Viro8687b632006-10-19 23:28:48 -07003548 __be32 *p;
Benny Halevy07d30432009-08-14 17:19:52 +03003549
3550 p = xdr_inline_decode(xdr, len);
3551 if (likely(p)) {
3552 memcpy(buf, p, len);
3553 return 0;
3554 }
3555 print_overflow_msg(__func__, xdr);
3556 return -EIO;
3557}
3558
3559static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
3560{
3561 return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003562}
3563
3564static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
3565{
Linus Torvalds1da177e2005-04-16 15:20:36 -07003566 int status;
3567
3568 status = decode_op_hdr(xdr, OP_CLOSE);
Trond Myklebustc1d51932008-04-07 13:20:54 -04003569 if (status != -EIO)
3570 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03003571 if (!status)
3572 status = decode_stateid(xdr, &res->stateid);
3573 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003574}
3575
Benny Halevydb942bb2009-08-14 17:19:56 +03003576static int decode_verifier(struct xdr_stream *xdr, void *verifier)
3577{
3578 return decode_opaque_fixed(xdr, verifier, 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003579}
3580
3581static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
3582{
Linus Torvalds1da177e2005-04-16 15:20:36 -07003583 int status;
3584
3585 status = decode_op_hdr(xdr, OP_COMMIT);
Benny Halevydb942bb2009-08-14 17:19:56 +03003586 if (!status)
3587 status = decode_verifier(xdr, res->verf->verifier);
3588 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003589}
3590
3591static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3592{
Al Viro8687b632006-10-19 23:28:48 -07003593 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003594 uint32_t bmlen;
3595 int status;
3596
3597 status = decode_op_hdr(xdr, OP_CREATE);
3598 if (status)
3599 return status;
3600 if ((status = decode_change_info(xdr, cinfo)))
3601 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003602 p = xdr_inline_decode(xdr, 4);
3603 if (unlikely(!p))
3604 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003605 bmlen = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003606 p = xdr_inline_decode(xdr, bmlen << 2);
3607 if (likely(p))
3608 return 0;
3609out_overflow:
3610 print_overflow_msg(__func__, xdr);
3611 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003612}
3613
3614static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
3615{
Al Viro8687b632006-10-19 23:28:48 -07003616 __be32 *savep;
Andy Adamson6c0195a2008-12-23 16:06:15 -05003617 uint32_t attrlen, bitmap[2] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07003618 int status;
3619
3620 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3621 goto xdr_error;
3622 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3623 goto xdr_error;
3624 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3625 goto xdr_error;
3626 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
3627 goto xdr_error;
3628 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
3629 goto xdr_error;
3630 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
3631 goto xdr_error;
3632 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
3633 goto xdr_error;
3634 status = verify_attr_len(xdr, savep, attrlen);
3635xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07003636 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003637 return status;
3638}
Andy Adamson6c0195a2008-12-23 16:06:15 -05003639
Linus Torvalds1da177e2005-04-16 15:20:36 -07003640static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
3641{
Al Viro8687b632006-10-19 23:28:48 -07003642 __be32 *savep;
Andy Adamson6c0195a2008-12-23 16:06:15 -05003643 uint32_t attrlen, bitmap[2] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07003644 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05003645
Linus Torvalds1da177e2005-04-16 15:20:36 -07003646 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3647 goto xdr_error;
3648 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3649 goto xdr_error;
3650 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3651 goto xdr_error;
3652
3653 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
3654 goto xdr_error;
3655 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
3656 goto xdr_error;
3657 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
3658 goto xdr_error;
3659 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
3660 goto xdr_error;
3661 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
3662 goto xdr_error;
3663 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
3664 goto xdr_error;
3665
3666 status = verify_attr_len(xdr, savep, attrlen);
3667xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07003668 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003669 return status;
3670}
3671
3672static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
3673{
Al Viro8687b632006-10-19 23:28:48 -07003674 __be32 *savep;
Andy Adamson6c0195a2008-12-23 16:06:15 -05003675 uint32_t attrlen, bitmap[2] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07003676 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05003677
Linus Torvalds1da177e2005-04-16 15:20:36 -07003678 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3679 goto xdr_error;
3680 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3681 goto xdr_error;
3682 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3683 goto xdr_error;
3684
3685 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
3686 goto xdr_error;
3687 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
3688 goto xdr_error;
3689
3690 status = verify_attr_len(xdr, savep, attrlen);
3691xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07003692 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003693 return status;
3694}
3695
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003696static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr,
3697 const struct nfs_server *server, int may_sleep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003698{
Al Viro8687b632006-10-19 23:28:48 -07003699 __be32 *savep;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003700 uint32_t attrlen,
3701 bitmap[2] = {0},
3702 type;
Trond Myklebustbca79472009-03-11 14:10:26 -04003703 int status;
3704 umode_t fmode = 0;
Manoj Naik99baf622006-06-09 09:34:24 -04003705 uint64_t fileid;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003706
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003707 status = decode_op_hdr(xdr, OP_GETATTR);
3708 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003709 goto xdr_error;
3710
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003711 status = decode_attr_bitmap(xdr, bitmap);
3712 if (status < 0)
3713 goto xdr_error;
3714
3715 status = decode_attr_length(xdr, &attrlen, &savep);
3716 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003717 goto xdr_error;
3718
3719
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003720 status = decode_attr_type(xdr, bitmap, &type);
3721 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003722 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003723 fattr->mode = 0;
3724 if (status != 0) {
3725 fattr->mode |= nfs_type2fmt[type];
3726 fattr->valid |= status;
3727 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003728
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003729 status = decode_attr_change(xdr, bitmap, &fattr->change_attr);
3730 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003731 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003732 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003733
3734 status = decode_attr_size(xdr, bitmap, &fattr->size);
3735 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003736 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003737 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003738
3739 status = decode_attr_fsid(xdr, bitmap, &fattr->fsid);
3740 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003741 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003742 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003743
3744 status = decode_attr_fileid(xdr, bitmap, &fattr->fileid);
3745 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003746 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003747 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003748
3749 status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr,
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003750 struct nfs4_fs_locations,
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003751 fattr));
3752 if (status < 0)
Trond Myklebust683b57b2006-06-09 09:34:22 -04003753 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003754 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003755
3756 status = decode_attr_mode(xdr, bitmap, &fmode);
3757 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003758 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003759 if (status != 0) {
3760 fattr->mode |= fmode;
3761 fattr->valid |= status;
3762 }
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003763
3764 status = decode_attr_nlink(xdr, bitmap, &fattr->nlink);
3765 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003766 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003767 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003768
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003769 status = decode_attr_owner(xdr, bitmap, server->nfs_client,
3770 &fattr->uid, may_sleep);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003771 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003772 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003773 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003774
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003775 status = decode_attr_group(xdr, bitmap, server->nfs_client,
3776 &fattr->gid, may_sleep);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003777 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003778 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003779 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003780
3781 status = decode_attr_rdev(xdr, bitmap, &fattr->rdev);
3782 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003783 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003784 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003785
3786 status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used);
3787 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003788 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003789 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003790
3791 status = decode_attr_time_access(xdr, bitmap, &fattr->atime);
3792 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003793 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003794 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003795
3796 status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime);
3797 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003798 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003799 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003800
3801 status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime);
3802 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003803 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003804 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003805
3806 status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid);
3807 if (status < 0)
Manoj Naik99baf622006-06-09 09:34:24 -04003808 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003809 if (status != 0 && !(fattr->valid & status)) {
Manoj Naik99baf622006-06-09 09:34:24 -04003810 fattr->fileid = fileid;
Trond Myklebust409924e2009-03-11 14:10:27 -04003811 fattr->valid |= status;
3812 }
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003813
3814 status = verify_attr_len(xdr, savep, attrlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003815xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07003816 dprintk("%s: xdr returned %d\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003817 return status;
3818}
3819
3820
3821static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
3822{
Al Viro8687b632006-10-19 23:28:48 -07003823 __be32 *savep;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003824 uint32_t attrlen, bitmap[2];
3825 int status;
3826
3827 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3828 goto xdr_error;
3829 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3830 goto xdr_error;
3831 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3832 goto xdr_error;
3833
3834 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
3835
3836 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
3837 goto xdr_error;
3838 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
3839 goto xdr_error;
3840 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
3841 goto xdr_error;
3842 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
3843 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
3844 goto xdr_error;
3845 fsinfo->wtpref = fsinfo->wtmax;
3846
3847 status = verify_attr_len(xdr, savep, attrlen);
3848xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07003849 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003850 return status;
3851}
3852
3853static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
3854{
Al Viro8687b632006-10-19 23:28:48 -07003855 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003856 uint32_t len;
3857 int status;
3858
Trond Myklebust99367812007-07-17 21:52:41 -04003859 /* Zero handle first to allow comparisons */
3860 memset(fh, 0, sizeof(*fh));
3861
Linus Torvalds1da177e2005-04-16 15:20:36 -07003862 status = decode_op_hdr(xdr, OP_GETFH);
3863 if (status)
3864 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003865
Benny Halevyc0eae662009-08-14 17:20:14 +03003866 p = xdr_inline_decode(xdr, 4);
3867 if (unlikely(!p))
3868 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003869 len = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003870 if (len > NFS4_FHSIZE)
3871 return -EIO;
3872 fh->size = len;
Benny Halevyc0eae662009-08-14 17:20:14 +03003873 p = xdr_inline_decode(xdr, len);
3874 if (unlikely(!p))
3875 goto out_overflow;
Benny Halevy99398d02009-08-14 17:20:05 +03003876 memcpy(fh->data, p, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003877 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003878out_overflow:
3879 print_overflow_msg(__func__, xdr);
3880 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003881}
3882
3883static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3884{
3885 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05003886
Linus Torvalds1da177e2005-04-16 15:20:36 -07003887 status = decode_op_hdr(xdr, OP_LINK);
3888 if (status)
3889 return status;
3890 return decode_change_info(xdr, cinfo);
3891}
3892
3893/*
3894 * We create the owner, so we know a proper owner.id length is 4.
3895 */
Trond Myklebust911d1aa2006-01-03 09:55:16 +01003896static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003897{
Trond Myklebust911d1aa2006-01-03 09:55:16 +01003898 uint64_t offset, length, clientid;
Al Viro8687b632006-10-19 23:28:48 -07003899 __be32 *p;
Trond Myklebust911d1aa2006-01-03 09:55:16 +01003900 uint32_t namelen, type;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003901
Benny Halevyc0eae662009-08-14 17:20:14 +03003902 p = xdr_inline_decode(xdr, 32);
3903 if (unlikely(!p))
3904 goto out_overflow;
Benny Halevy3ceb4db2009-08-14 17:19:41 +03003905 p = xdr_decode_hyper(p, &offset);
3906 p = xdr_decode_hyper(p, &length);
Benny Halevy6f723f72009-08-14 17:19:37 +03003907 type = be32_to_cpup(p++);
Trond Myklebust911d1aa2006-01-03 09:55:16 +01003908 if (fl != NULL) {
3909 fl->fl_start = (loff_t)offset;
3910 fl->fl_end = fl->fl_start + (loff_t)length - 1;
3911 if (length == ~(uint64_t)0)
3912 fl->fl_end = OFFSET_MAX;
3913 fl->fl_type = F_WRLCK;
3914 if (type & 1)
3915 fl->fl_type = F_RDLCK;
3916 fl->fl_pid = 0;
3917 }
Benny Halevy3ceb4db2009-08-14 17:19:41 +03003918 p = xdr_decode_hyper(p, &clientid);
Benny Halevycccddf42009-08-14 17:20:19 +03003919 namelen = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003920 p = xdr_inline_decode(xdr, namelen);
3921 if (likely(p))
3922 return -NFS4ERR_DENIED;
3923out_overflow:
3924 print_overflow_msg(__func__, xdr);
3925 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003926}
3927
Trond Myklebust911d1aa2006-01-03 09:55:16 +01003928static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003929{
Linus Torvalds1da177e2005-04-16 15:20:36 -07003930 int status;
3931
3932 status = decode_op_hdr(xdr, OP_LOCK);
Trond Myklebustc1d51932008-04-07 13:20:54 -04003933 if (status == -EIO)
3934 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003935 if (status == 0) {
Benny Halevy07d30432009-08-14 17:19:52 +03003936 status = decode_stateid(xdr, &res->stateid);
3937 if (unlikely(status))
3938 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003939 } else if (status == -NFS4ERR_DENIED)
Trond Myklebustc1d51932008-04-07 13:20:54 -04003940 status = decode_lock_denied(xdr, NULL);
3941 if (res->open_seqid != NULL)
3942 nfs_increment_open_seqid(status, res->open_seqid);
3943 nfs_increment_lock_seqid(status, res->lock_seqid);
3944out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07003945 return status;
3946}
3947
Trond Myklebust911d1aa2006-01-03 09:55:16 +01003948static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003949{
3950 int status;
3951 status = decode_op_hdr(xdr, OP_LOCKT);
3952 if (status == -NFS4ERR_DENIED)
Trond Myklebust911d1aa2006-01-03 09:55:16 +01003953 return decode_lock_denied(xdr, res->denied);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003954 return status;
3955}
3956
Trond Myklebust911d1aa2006-01-03 09:55:16 +01003957static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003958{
Linus Torvalds1da177e2005-04-16 15:20:36 -07003959 int status;
3960
3961 status = decode_op_hdr(xdr, OP_LOCKU);
Trond Myklebustc1d51932008-04-07 13:20:54 -04003962 if (status != -EIO)
3963 nfs_increment_lock_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03003964 if (status == 0)
3965 status = decode_stateid(xdr, &res->stateid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003966 return status;
3967}
3968
3969static int decode_lookup(struct xdr_stream *xdr)
3970{
3971 return decode_op_hdr(xdr, OP_LOOKUP);
3972}
3973
3974/* This is too sick! */
3975static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
3976{
Andy Adamson05d564f2008-12-23 16:06:15 -05003977 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003978 uint32_t limit_type, nblocks, blocksize;
3979
Benny Halevyc0eae662009-08-14 17:20:14 +03003980 p = xdr_inline_decode(xdr, 12);
3981 if (unlikely(!p))
3982 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003983 limit_type = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003984 switch (limit_type) {
Andy Adamson05d564f2008-12-23 16:06:15 -05003985 case 1:
Benny Halevycccddf42009-08-14 17:20:19 +03003986 xdr_decode_hyper(p, maxsize);
Andy Adamson05d564f2008-12-23 16:06:15 -05003987 break;
3988 case 2:
Benny Halevy6f723f72009-08-14 17:19:37 +03003989 nblocks = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03003990 blocksize = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05003991 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003992 }
3993 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003994out_overflow:
3995 print_overflow_msg(__func__, xdr);
3996 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003997}
3998
3999static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
4000{
Andy Adamson05d564f2008-12-23 16:06:15 -05004001 __be32 *p;
4002 uint32_t delegation_type;
Benny Halevy07d30432009-08-14 17:19:52 +03004003 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004004
Benny Halevyc0eae662009-08-14 17:20:14 +03004005 p = xdr_inline_decode(xdr, 4);
4006 if (unlikely(!p))
4007 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004008 delegation_type = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004009 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
4010 res->delegation_type = 0;
4011 return 0;
4012 }
Benny Halevy07d30432009-08-14 17:19:52 +03004013 status = decode_stateid(xdr, &res->delegation);
4014 if (unlikely(status))
4015 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004016 p = xdr_inline_decode(xdr, 4);
4017 if (unlikely(!p))
4018 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004019 res->do_recall = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05004020
Linus Torvalds1da177e2005-04-16 15:20:36 -07004021 switch (delegation_type) {
Andy Adamson05d564f2008-12-23 16:06:15 -05004022 case NFS4_OPEN_DELEGATE_READ:
4023 res->delegation_type = FMODE_READ;
4024 break;
4025 case NFS4_OPEN_DELEGATE_WRITE:
4026 res->delegation_type = FMODE_WRITE|FMODE_READ;
4027 if (decode_space_limit(xdr, &res->maxsize) < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004028 return -EIO;
4029 }
David Howells7539bba2006-08-22 20:06:09 -04004030 return decode_ace(xdr, NULL, res->server->nfs_client);
Benny Halevyc0eae662009-08-14 17:20:14 +03004031out_overflow:
4032 print_overflow_msg(__func__, xdr);
4033 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004034}
4035
4036static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
4037{
Andy Adamson05d564f2008-12-23 16:06:15 -05004038 __be32 *p;
Jeff Laytonaa53ed52007-06-05 14:49:03 -04004039 uint32_t savewords, bmlen, i;
Andy Adamson05d564f2008-12-23 16:06:15 -05004040 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004041
Andy Adamson05d564f2008-12-23 16:06:15 -05004042 status = decode_op_hdr(xdr, OP_OPEN);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004043 if (status != -EIO)
4044 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004045 if (!status)
4046 status = decode_stateid(xdr, &res->stateid);
4047 if (unlikely(status))
Andy Adamson05d564f2008-12-23 16:06:15 -05004048 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004049
Andy Adamson05d564f2008-12-23 16:06:15 -05004050 decode_change_info(xdr, &res->cinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004051
Benny Halevyc0eae662009-08-14 17:20:14 +03004052 p = xdr_inline_decode(xdr, 8);
4053 if (unlikely(!p))
4054 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004055 res->rflags = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004056 bmlen = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05004057 if (bmlen > 10)
4058 goto xdr_error;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004059
Benny Halevyc0eae662009-08-14 17:20:14 +03004060 p = xdr_inline_decode(xdr, bmlen << 2);
4061 if (unlikely(!p))
4062 goto out_overflow;
Jeff Laytonaa53ed52007-06-05 14:49:03 -04004063 savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE);
4064 for (i = 0; i < savewords; ++i)
Benny Halevy6f723f72009-08-14 17:19:37 +03004065 res->attrset[i] = be32_to_cpup(p++);
Jeff Laytonaa53ed52007-06-05 14:49:03 -04004066 for (; i < NFS4_BITMAP_SIZE; i++)
4067 res->attrset[i] = 0;
4068
Linus Torvalds1da177e2005-04-16 15:20:36 -07004069 return decode_delegation(xdr, res);
4070xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004071 dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004072 return -EIO;
Benny Halevyc0eae662009-08-14 17:20:14 +03004073out_overflow:
4074 print_overflow_msg(__func__, xdr);
4075 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004076}
4077
4078static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
4079{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004080 int status;
4081
Andy Adamson05d564f2008-12-23 16:06:15 -05004082 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004083 if (status != -EIO)
4084 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004085 if (!status)
4086 status = decode_stateid(xdr, &res->stateid);
4087 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004088}
4089
4090static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
4091{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004092 int status;
4093
4094 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004095 if (status != -EIO)
4096 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004097 if (!status)
4098 status = decode_stateid(xdr, &res->stateid);
4099 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004100}
4101
4102static int decode_putfh(struct xdr_stream *xdr)
4103{
4104 return decode_op_hdr(xdr, OP_PUTFH);
4105}
4106
4107static int decode_putrootfh(struct xdr_stream *xdr)
4108{
4109 return decode_op_hdr(xdr, OP_PUTROOTFH);
4110}
4111
4112static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res)
4113{
4114 struct kvec *iov = req->rq_rcv_buf.head;
Al Viro8687b632006-10-19 23:28:48 -07004115 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004116 uint32_t count, eof, recvd, hdrlen;
4117 int status;
4118
4119 status = decode_op_hdr(xdr, OP_READ);
4120 if (status)
4121 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004122 p = xdr_inline_decode(xdr, 8);
4123 if (unlikely(!p))
4124 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004125 eof = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004126 count = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004127 hdrlen = (u8 *) p - (u8 *) iov->iov_base;
4128 recvd = req->rq_rcv_buf.len - hdrlen;
4129 if (count > recvd) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004130 dprintk("NFS: server cheating in read reply: "
Linus Torvalds1da177e2005-04-16 15:20:36 -07004131 "count %u > recvd %u\n", count, recvd);
4132 count = recvd;
4133 eof = 0;
4134 }
4135 xdr_read_pages(xdr, count);
4136 res->eof = eof;
4137 res->count = count;
4138 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004139out_overflow:
4140 print_overflow_msg(__func__, xdr);
4141 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004142}
4143
4144static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
4145{
4146 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
4147 struct page *page = *rcvbuf->pages;
4148 struct kvec *iov = rcvbuf->head;
Chuck Leverbcecff72007-10-26 13:32:03 -04004149 size_t hdrlen;
4150 u32 recvd, pglen = rcvbuf->page_len;
Al Viro8687b632006-10-19 23:28:48 -07004151 __be32 *end, *entry, *p, *kaddr;
Jeff Layton7bda2cd2008-02-22 14:50:01 -05004152 unsigned int nr = 0;
Chuck Leverbcecff72007-10-26 13:32:03 -04004153 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004154
4155 status = decode_op_hdr(xdr, OP_READDIR);
Benny Halevydb942bb2009-08-14 17:19:56 +03004156 if (!status)
4157 status = decode_verifier(xdr, readdir->verifier.data);
4158 if (unlikely(status))
Linus Torvalds1da177e2005-04-16 15:20:36 -07004159 return status;
Fred Isaman44109242008-04-02 15:21:15 +03004160 dprintk("%s: verifier = %08x:%08x\n",
4161 __func__,
Trond Myklebusteadf4592005-06-22 17:16:39 +00004162 ((u32 *)readdir->verifier.data)[0],
4163 ((u32 *)readdir->verifier.data)[1]);
4164
Linus Torvalds1da177e2005-04-16 15:20:36 -07004165
Benny Halevydb942bb2009-08-14 17:19:56 +03004166 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004167 recvd = rcvbuf->len - hdrlen;
4168 if (pglen > recvd)
4169 pglen = recvd;
4170 xdr_read_pages(xdr, pglen);
4171
4172 BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE);
Al Viro8687b632006-10-19 23:28:48 -07004173 kaddr = p = kmap_atomic(page, KM_USER0);
David Howellse8896492006-08-24 15:44:19 -04004174 end = p + ((pglen + readdir->pgbase) >> 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004175 entry = p;
Jeff Layton7bda2cd2008-02-22 14:50:01 -05004176
4177 /* Make sure the packet actually has a value_follows and EOF entry */
4178 if ((entry + 1) > end)
4179 goto short_pkt;
4180
4181 for (; *p++; nr++) {
Chuck Leverbcecff72007-10-26 13:32:03 -04004182 u32 len, attrlen, xlen;
David Howellse8896492006-08-24 15:44:19 -04004183 if (end - p < 3)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004184 goto short_pkt;
Trond Myklebusteadf4592005-06-22 17:16:39 +00004185 dprintk("cookie = %Lu, ", *((unsigned long long *)p));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004186 p += 2; /* cookie */
4187 len = ntohl(*p++); /* filename length */
4188 if (len > NFS4_MAXNAMLEN) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004189 dprintk("NFS: giant filename in readdir (len 0x%x)\n",
4190 len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004191 goto err_unmap;
4192 }
David Howellse8896492006-08-24 15:44:19 -04004193 xlen = XDR_QUADLEN(len);
4194 if (end - p < xlen + 1)
4195 goto short_pkt;
Trond Myklebusteadf4592005-06-22 17:16:39 +00004196 dprintk("filename = %*s\n", len, (char *)p);
David Howellse8896492006-08-24 15:44:19 -04004197 p += xlen;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004198 len = ntohl(*p++); /* bitmap length */
David Howellse8896492006-08-24 15:44:19 -04004199 if (end - p < len + 1)
4200 goto short_pkt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004201 p += len;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004202 attrlen = XDR_QUADLEN(ntohl(*p++));
David Howellse8896492006-08-24 15:44:19 -04004203 if (end - p < attrlen + 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004204 goto short_pkt;
David Howellse8896492006-08-24 15:44:19 -04004205 p += attrlen; /* attributes */
Linus Torvalds1da177e2005-04-16 15:20:36 -07004206 entry = p;
4207 }
Jeff Layton7bda2cd2008-02-22 14:50:01 -05004208 /*
4209 * Apparently some server sends responses that are a valid size, but
4210 * contain no entries, and have value_follows==0 and EOF==0. For
4211 * those, just set the EOF marker.
4212 */
4213 if (!nr && entry[1] == 0) {
4214 dprintk("NFS: readdir reply truncated!\n");
4215 entry[1] = 1;
4216 }
Andy Adamson6c0195a2008-12-23 16:06:15 -05004217out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07004218 kunmap_atomic(kaddr, KM_USER0);
4219 return 0;
4220short_pkt:
Jeff Layton7bda2cd2008-02-22 14:50:01 -05004221 /*
4222 * When we get a short packet there are 2 possibilities. We can
4223 * return an error, or fix up the response to look like a valid
4224 * response and return what we have so far. If there are no
4225 * entries and the packet was short, then return -EIO. If there
4226 * are valid entries in the response, return them and pretend that
4227 * the call was successful, but incomplete. The caller can retry the
4228 * readdir starting at the last cookie.
4229 */
Harvey Harrison3110ff82008-05-02 13:42:44 -07004230 dprintk("%s: short packet at entry %d\n", __func__, nr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004231 entry[0] = entry[1] = 0;
Jeff Layton7bda2cd2008-02-22 14:50:01 -05004232 if (nr)
4233 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004234err_unmap:
4235 kunmap_atomic(kaddr, KM_USER0);
4236 return -errno_NFSERR_IO;
4237}
4238
4239static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
4240{
4241 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
4242 struct kvec *iov = rcvbuf->head;
Chuck Leverbcecff72007-10-26 13:32:03 -04004243 size_t hdrlen;
4244 u32 len, recvd;
Al Viro8687b632006-10-19 23:28:48 -07004245 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004246 char *kaddr;
4247 int status;
4248
4249 status = decode_op_hdr(xdr, OP_READLINK);
4250 if (status)
4251 return status;
4252
4253 /* Convert length of symlink */
Benny Halevyc0eae662009-08-14 17:20:14 +03004254 p = xdr_inline_decode(xdr, 4);
4255 if (unlikely(!p))
4256 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004257 len = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004258 if (len >= rcvbuf->page_len || len <= 0) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004259 dprintk("nfs: server returned giant symlink!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07004260 return -ENAMETOOLONG;
4261 }
4262 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
4263 recvd = req->rq_rcv_buf.len - hdrlen;
4264 if (recvd < len) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004265 dprintk("NFS: server cheating in readlink reply: "
Linus Torvalds1da177e2005-04-16 15:20:36 -07004266 "count %u > recvd %u\n", len, recvd);
4267 return -EIO;
4268 }
4269 xdr_read_pages(xdr, len);
4270 /*
4271 * The XDR encode routine has set things up so that
4272 * the link text will be copied directly into the
4273 * buffer. We just have to do overflow-checking,
4274 * and and null-terminate the text (the VFS expects
4275 * null-termination).
4276 */
4277 kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0);
4278 kaddr[len+rcvbuf->page_base] = '\0';
4279 kunmap_atomic(kaddr, KM_USER0);
4280 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004281out_overflow:
4282 print_overflow_msg(__func__, xdr);
4283 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004284}
4285
4286static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4287{
4288 int status;
4289
4290 status = decode_op_hdr(xdr, OP_REMOVE);
4291 if (status)
4292 goto out;
4293 status = decode_change_info(xdr, cinfo);
4294out:
4295 return status;
4296}
4297
4298static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
4299 struct nfs4_change_info *new_cinfo)
4300{
4301 int status;
4302
4303 status = decode_op_hdr(xdr, OP_RENAME);
4304 if (status)
4305 goto out;
4306 if ((status = decode_change_info(xdr, old_cinfo)))
4307 goto out;
4308 status = decode_change_info(xdr, new_cinfo);
4309out:
4310 return status;
4311}
4312
4313static int decode_renew(struct xdr_stream *xdr)
4314{
4315 return decode_op_hdr(xdr, OP_RENEW);
4316}
4317
Trond Myklebust56ae19f2005-10-27 22:12:40 -04004318static int
4319decode_restorefh(struct xdr_stream *xdr)
4320{
4321 return decode_op_hdr(xdr, OP_RESTOREFH);
4322}
4323
J. Bruce Fields029d1052005-06-22 17:16:22 +00004324static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
4325 size_t *acl_len)
4326{
Al Viro8687b632006-10-19 23:28:48 -07004327 __be32 *savep;
J. Bruce Fields029d1052005-06-22 17:16:22 +00004328 uint32_t attrlen,
4329 bitmap[2] = {0};
4330 struct kvec *iov = req->rq_rcv_buf.head;
4331 int status;
4332
4333 *acl_len = 0;
4334 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4335 goto out;
4336 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4337 goto out;
4338 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4339 goto out;
4340
4341 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
4342 return -EIO;
4343 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
Chuck Leverbcecff72007-10-26 13:32:03 -04004344 size_t hdrlen;
4345 u32 recvd;
J. Bruce Fields029d1052005-06-22 17:16:22 +00004346
4347 /* We ignore &savep and don't do consistency checks on
4348 * the attr length. Let userspace figure it out.... */
4349 hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base;
4350 recvd = req->rq_rcv_buf.len - hdrlen;
4351 if (attrlen > recvd) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004352 dprintk("NFS: server cheating in getattr"
J. Bruce Fields029d1052005-06-22 17:16:22 +00004353 " acl reply: attrlen %u > recvd %u\n",
4354 attrlen, recvd);
4355 return -EINVAL;
4356 }
J. Bruce Fieldsc04871e2006-05-30 16:28:58 -04004357 xdr_read_pages(xdr, attrlen);
J. Bruce Fields029d1052005-06-22 17:16:22 +00004358 *acl_len = attrlen;
J. Bruce Fields8c233cf2005-10-13 16:54:27 -04004359 } else
4360 status = -EOPNOTSUPP;
J. Bruce Fields029d1052005-06-22 17:16:22 +00004361
4362out:
4363 return status;
4364}
4365
Linus Torvalds1da177e2005-04-16 15:20:36 -07004366static int
4367decode_savefh(struct xdr_stream *xdr)
4368{
4369 return decode_op_hdr(xdr, OP_SAVEFH);
4370}
4371
Benny Halevy9e9ecc02009-04-01 09:22:00 -04004372static int decode_setattr(struct xdr_stream *xdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004373{
Al Viro8687b632006-10-19 23:28:48 -07004374 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004375 uint32_t bmlen;
4376 int status;
4377
Linus Torvalds1da177e2005-04-16 15:20:36 -07004378 status = decode_op_hdr(xdr, OP_SETATTR);
4379 if (status)
4380 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004381 p = xdr_inline_decode(xdr, 4);
4382 if (unlikely(!p))
4383 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004384 bmlen = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03004385 p = xdr_inline_decode(xdr, bmlen << 2);
4386 if (likely(p))
4387 return 0;
4388out_overflow:
4389 print_overflow_msg(__func__, xdr);
4390 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004391}
4392
David Howellsadfa6f92006-08-22 20:06:08 -04004393static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004394{
Al Viro8687b632006-10-19 23:28:48 -07004395 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004396 uint32_t opnum;
4397 int32_t nfserr;
4398
Benny Halevyc0eae662009-08-14 17:20:14 +03004399 p = xdr_inline_decode(xdr, 8);
4400 if (unlikely(!p))
4401 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004402 opnum = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004403 if (opnum != OP_SETCLIENTID) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004404 dprintk("nfs: decode_setclientid: Server returned operation"
Andy Adamson6c0195a2008-12-23 16:06:15 -05004405 " %d\n", opnum);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004406 return -EIO;
4407 }
Benny Halevycccddf42009-08-14 17:20:19 +03004408 nfserr = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004409 if (nfserr == NFS_OK) {
Benny Halevyc0eae662009-08-14 17:20:14 +03004410 p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE);
4411 if (unlikely(!p))
4412 goto out_overflow;
Benny Halevy3ceb4db2009-08-14 17:19:41 +03004413 p = xdr_decode_hyper(p, &clp->cl_clientid);
Benny Halevy99398d02009-08-14 17:20:05 +03004414 memcpy(clp->cl_confirm.data, p, NFS4_VERIFIER_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004415 } else if (nfserr == NFSERR_CLID_INUSE) {
4416 uint32_t len;
4417
4418 /* skip netid string */
Benny Halevyc0eae662009-08-14 17:20:14 +03004419 p = xdr_inline_decode(xdr, 4);
4420 if (unlikely(!p))
4421 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004422 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03004423 p = xdr_inline_decode(xdr, len);
4424 if (unlikely(!p))
4425 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004426
4427 /* skip uaddr string */
Benny Halevyc0eae662009-08-14 17:20:14 +03004428 p = xdr_inline_decode(xdr, 4);
4429 if (unlikely(!p))
4430 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004431 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03004432 p = xdr_inline_decode(xdr, len);
4433 if (unlikely(!p))
4434 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004435 return -NFSERR_CLID_INUSE;
4436 } else
Benny Halevy856dff32008-03-31 17:39:06 +03004437 return nfs4_stat_to_errno(nfserr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004438
4439 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004440out_overflow:
4441 print_overflow_msg(__func__, xdr);
4442 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004443}
4444
4445static int decode_setclientid_confirm(struct xdr_stream *xdr)
4446{
4447 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
4448}
4449
4450static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
4451{
Al Viro8687b632006-10-19 23:28:48 -07004452 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004453 int status;
4454
4455 status = decode_op_hdr(xdr, OP_WRITE);
4456 if (status)
4457 return status;
4458
Benny Halevyc0eae662009-08-14 17:20:14 +03004459 p = xdr_inline_decode(xdr, 16);
4460 if (unlikely(!p))
4461 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004462 res->count = be32_to_cpup(p++);
4463 res->verf->committed = be32_to_cpup(p++);
Benny Halevy99398d02009-08-14 17:20:05 +03004464 memcpy(res->verf->verifier, p, 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004465 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004466out_overflow:
4467 print_overflow_msg(__func__, xdr);
4468 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004469}
4470
4471static int decode_delegreturn(struct xdr_stream *xdr)
4472{
4473 return decode_op_hdr(xdr, OP_DELEGRETURN);
4474}
4475
Benny Halevy99fe60d2009-04-01 09:22:29 -04004476#if defined(CONFIG_NFS_V4_1)
4477static int decode_exchange_id(struct xdr_stream *xdr,
4478 struct nfs41_exchange_id_res *res)
4479{
4480 __be32 *p;
4481 uint32_t dummy;
Benny Halevy2460ba52009-08-14 17:20:10 +03004482 char *dummy_str;
Benny Halevy99fe60d2009-04-01 09:22:29 -04004483 int status;
4484 struct nfs_client *clp = res->client;
4485
4486 status = decode_op_hdr(xdr, OP_EXCHANGE_ID);
4487 if (status)
4488 return status;
4489
Benny Halevyc0eae662009-08-14 17:20:14 +03004490 p = xdr_inline_decode(xdr, 8);
4491 if (unlikely(!p))
4492 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004493 xdr_decode_hyper(p, &clp->cl_ex_clid);
Benny Halevyc0eae662009-08-14 17:20:14 +03004494 p = xdr_inline_decode(xdr, 12);
4495 if (unlikely(!p))
4496 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004497 clp->cl_seqid = be32_to_cpup(p++);
4498 clp->cl_exchange_flags = be32_to_cpup(p++);
Benny Halevy99fe60d2009-04-01 09:22:29 -04004499
4500 /* We ask for SP4_NONE */
Benny Halevycccddf42009-08-14 17:20:19 +03004501 dummy = be32_to_cpup(p);
Benny Halevy99fe60d2009-04-01 09:22:29 -04004502 if (dummy != SP4_NONE)
4503 return -EIO;
4504
4505 /* Throw away minor_id */
Benny Halevyc0eae662009-08-14 17:20:14 +03004506 p = xdr_inline_decode(xdr, 8);
4507 if (unlikely(!p))
4508 goto out_overflow;
Benny Halevy99fe60d2009-04-01 09:22:29 -04004509
4510 /* Throw away Major id */
Benny Halevy2460ba52009-08-14 17:20:10 +03004511 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4512 if (unlikely(status))
4513 return status;
Benny Halevy99fe60d2009-04-01 09:22:29 -04004514
4515 /* Throw away server_scope */
Benny Halevy2460ba52009-08-14 17:20:10 +03004516 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4517 if (unlikely(status))
4518 return status;
Benny Halevy99fe60d2009-04-01 09:22:29 -04004519
4520 /* Throw away Implementation id array */
Benny Halevy2460ba52009-08-14 17:20:10 +03004521 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4522 if (unlikely(status))
4523 return status;
Benny Halevy99fe60d2009-04-01 09:22:29 -04004524
4525 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004526out_overflow:
4527 print_overflow_msg(__func__, xdr);
4528 return -EIO;
Benny Halevy99fe60d2009-04-01 09:22:29 -04004529}
Andy Adamsonfc931582009-04-01 09:22:31 -04004530
4531static int decode_chan_attrs(struct xdr_stream *xdr,
4532 struct nfs4_channel_attrs *attrs)
4533{
4534 __be32 *p;
4535 u32 nr_attrs;
4536
Benny Halevyc0eae662009-08-14 17:20:14 +03004537 p = xdr_inline_decode(xdr, 28);
4538 if (unlikely(!p))
4539 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004540 attrs->headerpadsz = be32_to_cpup(p++);
4541 attrs->max_rqst_sz = be32_to_cpup(p++);
4542 attrs->max_resp_sz = be32_to_cpup(p++);
4543 attrs->max_resp_sz_cached = be32_to_cpup(p++);
4544 attrs->max_ops = be32_to_cpup(p++);
4545 attrs->max_reqs = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004546 nr_attrs = be32_to_cpup(p);
Andy Adamsonfc931582009-04-01 09:22:31 -04004547 if (unlikely(nr_attrs > 1)) {
4548 printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n",
4549 __func__, nr_attrs);
4550 return -EINVAL;
4551 }
Benny Halevyc0eae662009-08-14 17:20:14 +03004552 if (nr_attrs == 1) {
4553 p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */
4554 if (unlikely(!p))
4555 goto out_overflow;
4556 }
Andy Adamsonfc931582009-04-01 09:22:31 -04004557 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004558out_overflow:
4559 print_overflow_msg(__func__, xdr);
4560 return -EIO;
Andy Adamsonfc931582009-04-01 09:22:31 -04004561}
4562
Benny Halevye78291e2009-08-14 17:20:00 +03004563static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid)
4564{
4565 return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN);
Andy Adamsonfc931582009-04-01 09:22:31 -04004566}
4567
4568static int decode_create_session(struct xdr_stream *xdr,
4569 struct nfs41_create_session_res *res)
4570{
4571 __be32 *p;
4572 int status;
4573 struct nfs_client *clp = res->client;
4574 struct nfs4_session *session = clp->cl_session;
4575
4576 status = decode_op_hdr(xdr, OP_CREATE_SESSION);
Benny Halevye78291e2009-08-14 17:20:00 +03004577 if (!status)
4578 status = decode_sessionid(xdr, &session->sess_id);
4579 if (unlikely(status))
Andy Adamsonfc931582009-04-01 09:22:31 -04004580 return status;
4581
Andy Adamsonfc931582009-04-01 09:22:31 -04004582 /* seqid, flags */
Benny Halevyc0eae662009-08-14 17:20:14 +03004583 p = xdr_inline_decode(xdr, 8);
4584 if (unlikely(!p))
4585 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004586 clp->cl_seqid = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004587 session->flags = be32_to_cpup(p);
Andy Adamsonfc931582009-04-01 09:22:31 -04004588
4589 /* Channel attributes */
4590 status = decode_chan_attrs(xdr, &session->fc_attrs);
4591 if (!status)
4592 status = decode_chan_attrs(xdr, &session->bc_attrs);
4593 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004594out_overflow:
4595 print_overflow_msg(__func__, xdr);
4596 return -EIO;
Andy Adamsonfc931582009-04-01 09:22:31 -04004597}
Andy Adamson0f3e66c2009-04-01 09:22:34 -04004598
4599static int decode_destroy_session(struct xdr_stream *xdr, void *dummy)
4600{
4601 return decode_op_hdr(xdr, OP_DESTROY_SESSION);
4602}
Ricardo Labiaga18019752009-12-05 16:08:40 -05004603
4604static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy)
4605{
4606 return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE);
4607}
Benny Halevy99fe60d2009-04-01 09:22:29 -04004608#endif /* CONFIG_NFS_V4_1 */
4609
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004610static int decode_sequence(struct xdr_stream *xdr,
4611 struct nfs4_sequence_res *res,
4612 struct rpc_rqst *rqstp)
4613{
4614#if defined(CONFIG_NFS_V4_1)
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004615 struct nfs4_slot *slot;
4616 struct nfs4_sessionid id;
4617 u32 dummy;
4618 int status;
4619 __be32 *p;
4620
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004621 if (!res->sr_session)
4622 return 0;
4623
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004624 status = decode_op_hdr(xdr, OP_SEQUENCE);
Benny Halevye78291e2009-08-14 17:20:00 +03004625 if (!status)
4626 status = decode_sessionid(xdr, &id);
4627 if (unlikely(status))
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004628 goto out_err;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004629
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004630 /*
4631 * If the server returns different values for sessionID, slotID or
4632 * sequence number, the server is looney tunes.
4633 */
4634 status = -ESERVERFAULT;
4635
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004636 if (memcmp(id.data, res->sr_session->sess_id.data,
4637 NFS4_MAX_SESSIONID_LEN)) {
4638 dprintk("%s Invalid session id\n", __func__);
4639 goto out_err;
4640 }
Benny Halevye78291e2009-08-14 17:20:00 +03004641
Benny Halevyc0eae662009-08-14 17:20:14 +03004642 p = xdr_inline_decode(xdr, 20);
4643 if (unlikely(!p))
4644 goto out_overflow;
Benny Halevye78291e2009-08-14 17:20:00 +03004645
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004646 /* seqid */
Benny Halevye78291e2009-08-14 17:20:00 +03004647 slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid];
Benny Halevy6f723f72009-08-14 17:19:37 +03004648 dummy = be32_to_cpup(p++);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004649 if (dummy != slot->seq_nr) {
4650 dprintk("%s Invalid sequence number\n", __func__);
4651 goto out_err;
4652 }
4653 /* slot id */
Benny Halevy6f723f72009-08-14 17:19:37 +03004654 dummy = be32_to_cpup(p++);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004655 if (dummy != res->sr_slotid) {
4656 dprintk("%s Invalid slot id\n", __func__);
4657 goto out_err;
4658 }
4659 /* highest slot id - currently not processed */
Benny Halevy6f723f72009-08-14 17:19:37 +03004660 dummy = be32_to_cpup(p++);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004661 /* target highest slot id - currently not processed */
Benny Halevy6f723f72009-08-14 17:19:37 +03004662 dummy = be32_to_cpup(p++);
Alexandros Batsakis0629e372009-12-05 13:46:14 -05004663 /* result flags */
4664 res->sr_status_flags = be32_to_cpup(p);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004665 status = 0;
4666out_err:
4667 res->sr_status = status;
4668 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004669out_overflow:
4670 print_overflow_msg(__func__, xdr);
4671 status = -EIO;
4672 goto out_err;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004673#else /* CONFIG_NFS_V4_1 */
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004674 return 0;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004675#endif /* CONFIG_NFS_V4_1 */
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004676}
4677
Linus Torvalds1da177e2005-04-16 15:20:36 -07004678/*
Benny Halevy49c25592008-12-23 16:06:16 -05004679 * END OF "GENERIC" DECODE ROUTINES.
4680 */
4681
4682/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07004683 * Decode OPEN_DOWNGRADE response
4684 */
Al Viro8687b632006-10-19 23:28:48 -07004685static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004686{
Andy Adamson05d564f2008-12-23 16:06:15 -05004687 struct xdr_stream xdr;
4688 struct compound_hdr hdr;
4689 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004690
Andy Adamson05d564f2008-12-23 16:06:15 -05004691 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4692 status = decode_compound_hdr(&xdr, &hdr);
4693 if (status)
4694 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004695 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4696 if (status)
4697 goto out;
Andy Adamson05d564f2008-12-23 16:06:15 -05004698 status = decode_putfh(&xdr);
4699 if (status)
4700 goto out;
4701 status = decode_open_downgrade(&xdr, res);
Trond Myklebust516a6af2005-10-27 22:12:41 -04004702 if (status != 0)
4703 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004704 decode_getfattr(&xdr, res->fattr, res->server,
4705 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004706out:
Andy Adamson05d564f2008-12-23 16:06:15 -05004707 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004708}
4709
4710/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07004711 * Decode ACCESS response
4712 */
Al Viro8687b632006-10-19 23:28:48 -07004713static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004714{
4715 struct xdr_stream xdr;
4716 struct compound_hdr hdr;
4717 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004718
Linus Torvalds1da177e2005-04-16 15:20:36 -07004719 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004720 status = decode_compound_hdr(&xdr, &hdr);
4721 if (status)
4722 goto out;
4723 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4724 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004725 goto out;
Trond Myklebust76b32992007-08-10 17:45:11 -04004726 status = decode_putfh(&xdr);
4727 if (status != 0)
4728 goto out;
4729 status = decode_access(&xdr, res);
4730 if (status != 0)
4731 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004732 decode_getfattr(&xdr, res->fattr, res->server,
4733 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004734out:
4735 return status;
4736}
4737
4738/*
4739 * Decode LOOKUP response
4740 */
Al Viro8687b632006-10-19 23:28:48 -07004741static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004742{
4743 struct xdr_stream xdr;
4744 struct compound_hdr hdr;
4745 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004746
Linus Torvalds1da177e2005-04-16 15:20:36 -07004747 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004748 status = decode_compound_hdr(&xdr, &hdr);
4749 if (status)
4750 goto out;
4751 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4752 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004753 goto out;
4754 if ((status = decode_putfh(&xdr)) != 0)
4755 goto out;
4756 if ((status = decode_lookup(&xdr)) != 0)
4757 goto out;
4758 if ((status = decode_getfh(&xdr, res->fh)) != 0)
4759 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004760 status = decode_getfattr(&xdr, res->fattr, res->server
4761 ,!RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004762out:
4763 return status;
4764}
4765
4766/*
4767 * Decode LOOKUP_ROOT response
4768 */
Al Viro8687b632006-10-19 23:28:48 -07004769static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004770{
4771 struct xdr_stream xdr;
4772 struct compound_hdr hdr;
4773 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004774
Linus Torvalds1da177e2005-04-16 15:20:36 -07004775 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004776 status = decode_compound_hdr(&xdr, &hdr);
4777 if (status)
4778 goto out;
4779 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4780 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004781 goto out;
4782 if ((status = decode_putrootfh(&xdr)) != 0)
4783 goto out;
4784 if ((status = decode_getfh(&xdr, res->fh)) == 0)
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004785 status = decode_getfattr(&xdr, res->fattr, res->server,
4786 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004787out:
4788 return status;
4789}
4790
4791/*
4792 * Decode REMOVE response
4793 */
Trond Myklebust4fdc17b2007-07-14 15:39:57 -04004794static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004795{
4796 struct xdr_stream xdr;
4797 struct compound_hdr hdr;
4798 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004799
Linus Torvalds1da177e2005-04-16 15:20:36 -07004800 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004801 status = decode_compound_hdr(&xdr, &hdr);
4802 if (status)
4803 goto out;
4804 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4805 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004806 goto out;
Trond Myklebust16e42952005-10-27 22:12:44 -04004807 if ((status = decode_putfh(&xdr)) != 0)
4808 goto out;
4809 if ((status = decode_remove(&xdr, &res->cinfo)) != 0)
4810 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004811 decode_getfattr(&xdr, &res->dir_attr, res->server,
4812 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004813out:
4814 return status;
4815}
4816
4817/*
4818 * Decode RENAME response
4819 */
Al Viro8687b632006-10-19 23:28:48 -07004820static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004821{
4822 struct xdr_stream xdr;
4823 struct compound_hdr hdr;
4824 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004825
Linus Torvalds1da177e2005-04-16 15:20:36 -07004826 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004827 status = decode_compound_hdr(&xdr, &hdr);
4828 if (status)
4829 goto out;
4830 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4831 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004832 goto out;
4833 if ((status = decode_putfh(&xdr)) != 0)
4834 goto out;
4835 if ((status = decode_savefh(&xdr)) != 0)
4836 goto out;
4837 if ((status = decode_putfh(&xdr)) != 0)
4838 goto out;
Trond Myklebust6caf2c82005-10-27 22:12:43 -04004839 if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0)
4840 goto out;
4841 /* Current FH is target directory */
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004842 if (decode_getfattr(&xdr, res->new_fattr, res->server,
4843 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
Trond Myklebust6caf2c82005-10-27 22:12:43 -04004844 goto out;
4845 if ((status = decode_restorefh(&xdr)) != 0)
4846 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004847 decode_getfattr(&xdr, res->old_fattr, res->server,
4848 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004849out:
4850 return status;
4851}
4852
4853/*
4854 * Decode LINK response
4855 */
Al Viro8687b632006-10-19 23:28:48 -07004856static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004857{
4858 struct xdr_stream xdr;
4859 struct compound_hdr hdr;
4860 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004861
Linus Torvalds1da177e2005-04-16 15:20:36 -07004862 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004863 status = decode_compound_hdr(&xdr, &hdr);
4864 if (status)
4865 goto out;
4866 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4867 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004868 goto out;
4869 if ((status = decode_putfh(&xdr)) != 0)
4870 goto out;
4871 if ((status = decode_savefh(&xdr)) != 0)
4872 goto out;
4873 if ((status = decode_putfh(&xdr)) != 0)
4874 goto out;
Trond Myklebust91ba2ee2005-10-27 22:12:42 -04004875 if ((status = decode_link(&xdr, &res->cinfo)) != 0)
4876 goto out;
4877 /*
4878 * Note order: OP_LINK leaves the directory as the current
4879 * filehandle.
4880 */
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004881 if (decode_getfattr(&xdr, res->dir_attr, res->server,
4882 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
Trond Myklebust91ba2ee2005-10-27 22:12:42 -04004883 goto out;
4884 if ((status = decode_restorefh(&xdr)) != 0)
4885 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004886 decode_getfattr(&xdr, res->fattr, res->server,
4887 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004888out:
4889 return status;
4890}
4891
4892/*
4893 * Decode CREATE response
4894 */
Al Viro8687b632006-10-19 23:28:48 -07004895static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004896{
4897 struct xdr_stream xdr;
4898 struct compound_hdr hdr;
4899 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004900
Linus Torvalds1da177e2005-04-16 15:20:36 -07004901 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004902 status = decode_compound_hdr(&xdr, &hdr);
4903 if (status)
4904 goto out;
4905 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4906 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004907 goto out;
4908 if ((status = decode_putfh(&xdr)) != 0)
4909 goto out;
Trond Myklebust56ae19f2005-10-27 22:12:40 -04004910 if ((status = decode_savefh(&xdr)) != 0)
4911 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004912 if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0)
4913 goto out;
4914 if ((status = decode_getfh(&xdr, res->fh)) != 0)
4915 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004916 if (decode_getfattr(&xdr, res->fattr, res->server,
4917 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04004918 goto out;
4919 if ((status = decode_restorefh(&xdr)) != 0)
4920 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004921 decode_getfattr(&xdr, res->dir_fattr, res->server,
4922 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004923out:
4924 return status;
4925}
4926
4927/*
4928 * Decode SYMLINK response
4929 */
Al Viro8687b632006-10-19 23:28:48 -07004930static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004931{
4932 return nfs4_xdr_dec_create(rqstp, p, res);
4933}
4934
4935/*
4936 * Decode GETATTR response
4937 */
Al Viro8687b632006-10-19 23:28:48 -07004938static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004939{
4940 struct xdr_stream xdr;
4941 struct compound_hdr hdr;
4942 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004943
Linus Torvalds1da177e2005-04-16 15:20:36 -07004944 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4945 status = decode_compound_hdr(&xdr, &hdr);
4946 if (status)
4947 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004948 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4949 if (status)
4950 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004951 status = decode_putfh(&xdr);
4952 if (status)
4953 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004954 status = decode_getfattr(&xdr, res->fattr, res->server,
4955 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004956out:
4957 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004958}
4959
J. Bruce Fields23ec6962005-06-22 17:16:22 +00004960/*
4961 * Encode an SETACL request
4962 */
4963static int
Al Viro8687b632006-10-19 23:28:48 -07004964nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args)
J. Bruce Fields23ec6962005-06-22 17:16:22 +00004965{
Andy Adamson05d564f2008-12-23 16:06:15 -05004966 struct xdr_stream xdr;
4967 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04004968 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Andy Adamson05d564f2008-12-23 16:06:15 -05004969 };
4970 int status;
J. Bruce Fields23ec6962005-06-22 17:16:22 +00004971
Andy Adamson05d564f2008-12-23 16:06:15 -05004972 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04004973 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004974 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05004975 encode_putfh(&xdr, args->fh, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05004976 status = encode_setacl(&xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05004977 encode_nops(&hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05004978 return status;
J. Bruce Fields23ec6962005-06-22 17:16:22 +00004979}
Andy Adamson05d564f2008-12-23 16:06:15 -05004980
J. Bruce Fields23ec6962005-06-22 17:16:22 +00004981/*
4982 * Decode SETACL response
4983 */
4984static int
Benny Halevy73c403a2009-04-01 09:22:01 -04004985nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p,
4986 struct nfs_setaclres *res)
J. Bruce Fields23ec6962005-06-22 17:16:22 +00004987{
4988 struct xdr_stream xdr;
4989 struct compound_hdr hdr;
4990 int status;
4991
4992 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4993 status = decode_compound_hdr(&xdr, &hdr);
4994 if (status)
4995 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004996 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4997 if (status)
4998 goto out;
J. Bruce Fields23ec6962005-06-22 17:16:22 +00004999 status = decode_putfh(&xdr);
5000 if (status)
5001 goto out;
Benny Halevy9e9ecc02009-04-01 09:22:00 -04005002 status = decode_setattr(&xdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00005003out:
5004 return status;
5005}
Linus Torvalds1da177e2005-04-16 15:20:36 -07005006
5007/*
J. Bruce Fields029d1052005-06-22 17:16:22 +00005008 * Decode GETACL response
5009 */
5010static int
Benny Halevy663c79b2009-04-01 09:21:59 -04005011nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p,
5012 struct nfs_getaclres *res)
J. Bruce Fields029d1052005-06-22 17:16:22 +00005013{
5014 struct xdr_stream xdr;
5015 struct compound_hdr hdr;
5016 int status;
5017
5018 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5019 status = decode_compound_hdr(&xdr, &hdr);
5020 if (status)
5021 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005022 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5023 if (status)
5024 goto out;
J. Bruce Fields029d1052005-06-22 17:16:22 +00005025 status = decode_putfh(&xdr);
5026 if (status)
5027 goto out;
Benny Halevy663c79b2009-04-01 09:21:59 -04005028 status = decode_getacl(&xdr, rqstp, &res->acl_len);
J. Bruce Fields029d1052005-06-22 17:16:22 +00005029
5030out:
5031 return status;
5032}
5033
5034/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07005035 * Decode CLOSE response
5036 */
Al Viro8687b632006-10-19 23:28:48 -07005037static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005038{
Andy Adamson05d564f2008-12-23 16:06:15 -05005039 struct xdr_stream xdr;
5040 struct compound_hdr hdr;
5041 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005042
Andy Adamson05d564f2008-12-23 16:06:15 -05005043 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5044 status = decode_compound_hdr(&xdr, &hdr);
5045 if (status)
5046 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005047 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5048 if (status)
5049 goto out;
Andy Adamson05d564f2008-12-23 16:06:15 -05005050 status = decode_putfh(&xdr);
5051 if (status)
5052 goto out;
5053 status = decode_close(&xdr, res);
Trond Myklebust516a6af2005-10-27 22:12:41 -04005054 if (status != 0)
5055 goto out;
5056 /*
5057 * Note: Server may do delete on close for this file
5058 * in which case the getattr call will fail with
5059 * an ESTALE error. Shouldn't be a problem,
5060 * though, since fattr->valid will remain unset.
5061 */
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005062 decode_getfattr(&xdr, res->fattr, res->server,
5063 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005064out:
Andy Adamson05d564f2008-12-23 16:06:15 -05005065 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005066}
5067
5068/*
5069 * Decode OPEN response
5070 */
Al Viro8687b632006-10-19 23:28:48 -07005071static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005072{
Andy Adamson05d564f2008-12-23 16:06:15 -05005073 struct xdr_stream xdr;
5074 struct compound_hdr hdr;
5075 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005076
Andy Adamson05d564f2008-12-23 16:06:15 -05005077 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5078 status = decode_compound_hdr(&xdr, &hdr);
Trond Myklebust56ae19f2005-10-27 22:12:40 -04005079 if (status)
5080 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005081 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5082 if (status)
5083 goto out;
Andy Adamson05d564f2008-12-23 16:06:15 -05005084 status = decode_putfh(&xdr);
5085 if (status)
5086 goto out;
5087 status = decode_savefh(&xdr);
5088 if (status)
5089 goto out;
5090 status = decode_open(&xdr, res);
5091 if (status)
5092 goto out;
Trond Myklebust99367812007-07-17 21:52:41 -04005093 if (decode_getfh(&xdr, &res->fh) != 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005094 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005095 if (decode_getfattr(&xdr, res->f_attr, res->server,
5096 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04005097 goto out;
Trond Myklebust365c8f52007-07-17 21:52:37 -04005098 if (decode_restorefh(&xdr) != 0)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04005099 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005100 decode_getfattr(&xdr, res->dir_attr, res->server,
5101 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005102out:
Andy Adamson05d564f2008-12-23 16:06:15 -05005103 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005104}
5105
5106/*
5107 * Decode OPEN_CONFIRM response
5108 */
Al Viro8687b632006-10-19 23:28:48 -07005109static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005110{
Andy Adamson05d564f2008-12-23 16:06:15 -05005111 struct xdr_stream xdr;
5112 struct compound_hdr hdr;
5113 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005114
Andy Adamson05d564f2008-12-23 16:06:15 -05005115 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5116 status = decode_compound_hdr(&xdr, &hdr);
5117 if (status)
5118 goto out;
5119 status = decode_putfh(&xdr);
5120 if (status)
5121 goto out;
5122 status = decode_open_confirm(&xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005123out:
Andy Adamson05d564f2008-12-23 16:06:15 -05005124 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005125}
5126
5127/*
5128 * Decode OPEN response
5129 */
Al Viro8687b632006-10-19 23:28:48 -07005130static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005131{
Andy Adamson05d564f2008-12-23 16:06:15 -05005132 struct xdr_stream xdr;
5133 struct compound_hdr hdr;
5134 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005135
Andy Adamson05d564f2008-12-23 16:06:15 -05005136 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5137 status = decode_compound_hdr(&xdr, &hdr);
5138 if (status)
5139 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005140 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5141 if (status)
5142 goto out;
Andy Adamson05d564f2008-12-23 16:06:15 -05005143 status = decode_putfh(&xdr);
5144 if (status)
5145 goto out;
5146 status = decode_open(&xdr, res);
5147 if (status)
5148 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005149 decode_getfattr(&xdr, res->f_attr, res->server,
5150 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005151out:
Andy Adamson05d564f2008-12-23 16:06:15 -05005152 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005153}
5154
5155/*
5156 * Decode SETATTR response
5157 */
Al Viro8687b632006-10-19 23:28:48 -07005158static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005159{
Andy Adamson05d564f2008-12-23 16:06:15 -05005160 struct xdr_stream xdr;
5161 struct compound_hdr hdr;
5162 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005163
Andy Adamson05d564f2008-12-23 16:06:15 -05005164 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5165 status = decode_compound_hdr(&xdr, &hdr);
5166 if (status)
5167 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005168 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5169 if (status)
5170 goto out;
Andy Adamson05d564f2008-12-23 16:06:15 -05005171 status = decode_putfh(&xdr);
5172 if (status)
5173 goto out;
Benny Halevy9e9ecc02009-04-01 09:22:00 -04005174 status = decode_setattr(&xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05005175 if (status)
5176 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005177 decode_getfattr(&xdr, res->fattr, res->server,
5178 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005179out:
Andy Adamson05d564f2008-12-23 16:06:15 -05005180 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005181}
5182
5183/*
5184 * Decode LOCK response
5185 */
Al Viro8687b632006-10-19 23:28:48 -07005186static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005187{
5188 struct xdr_stream xdr;
5189 struct compound_hdr hdr;
5190 int status;
5191
5192 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5193 status = decode_compound_hdr(&xdr, &hdr);
5194 if (status)
5195 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005196 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5197 if (status)
5198 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005199 status = decode_putfh(&xdr);
5200 if (status)
5201 goto out;
5202 status = decode_lock(&xdr, res);
5203out:
5204 return status;
5205}
5206
5207/*
5208 * Decode LOCKT response
5209 */
Al Viro8687b632006-10-19 23:28:48 -07005210static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005211{
5212 struct xdr_stream xdr;
5213 struct compound_hdr hdr;
5214 int status;
5215
5216 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5217 status = decode_compound_hdr(&xdr, &hdr);
5218 if (status)
5219 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005220 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5221 if (status)
5222 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005223 status = decode_putfh(&xdr);
5224 if (status)
5225 goto out;
5226 status = decode_lockt(&xdr, res);
5227out:
5228 return status;
5229}
5230
5231/*
5232 * Decode LOCKU response
5233 */
Al Viro8687b632006-10-19 23:28:48 -07005234static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005235{
5236 struct xdr_stream xdr;
5237 struct compound_hdr hdr;
5238 int status;
5239
5240 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5241 status = decode_compound_hdr(&xdr, &hdr);
5242 if (status)
5243 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005244 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5245 if (status)
5246 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005247 status = decode_putfh(&xdr);
5248 if (status)
5249 goto out;
5250 status = decode_locku(&xdr, res);
5251out:
5252 return status;
5253}
5254
5255/*
5256 * Decode READLINK response
5257 */
Benny Halevyf50c7002009-04-01 09:21:55 -04005258static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p,
5259 struct nfs4_readlink_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005260{
5261 struct xdr_stream xdr;
5262 struct compound_hdr hdr;
5263 int status;
5264
5265 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5266 status = decode_compound_hdr(&xdr, &hdr);
5267 if (status)
5268 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005269 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5270 if (status)
5271 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005272 status = decode_putfh(&xdr);
5273 if (status)
5274 goto out;
5275 status = decode_readlink(&xdr, rqstp);
5276out:
5277 return status;
5278}
5279
5280/*
5281 * Decode READDIR response
5282 */
Al Viro8687b632006-10-19 23:28:48 -07005283static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005284{
5285 struct xdr_stream xdr;
5286 struct compound_hdr hdr;
5287 int status;
5288
5289 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5290 status = decode_compound_hdr(&xdr, &hdr);
5291 if (status)
5292 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005293 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5294 if (status)
5295 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005296 status = decode_putfh(&xdr);
5297 if (status)
5298 goto out;
5299 status = decode_readdir(&xdr, rqstp, res);
5300out:
5301 return status;
5302}
5303
5304/*
5305 * Decode Read response
5306 */
Al Viro8687b632006-10-19 23:28:48 -07005307static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005308{
5309 struct xdr_stream xdr;
5310 struct compound_hdr hdr;
5311 int status;
5312
5313 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5314 status = decode_compound_hdr(&xdr, &hdr);
5315 if (status)
5316 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005317 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5318 if (status)
5319 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005320 status = decode_putfh(&xdr);
5321 if (status)
5322 goto out;
5323 status = decode_read(&xdr, rqstp, res);
5324 if (!status)
5325 status = res->count;
5326out:
5327 return status;
5328}
5329
5330/*
5331 * Decode WRITE response
5332 */
Al Viro8687b632006-10-19 23:28:48 -07005333static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005334{
5335 struct xdr_stream xdr;
5336 struct compound_hdr hdr;
5337 int status;
5338
5339 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5340 status = decode_compound_hdr(&xdr, &hdr);
5341 if (status)
5342 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005343 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5344 if (status)
5345 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005346 status = decode_putfh(&xdr);
5347 if (status)
5348 goto out;
5349 status = decode_write(&xdr, res);
Trond Myklebust4f9838c2005-10-27 22:12:44 -04005350 if (status)
5351 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005352 decode_getfattr(&xdr, res->fattr, res->server,
5353 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005354 if (!status)
5355 status = res->count;
5356out:
5357 return status;
5358}
5359
5360/*
5361 * Decode COMMIT response
5362 */
Al Viro8687b632006-10-19 23:28:48 -07005363static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005364{
5365 struct xdr_stream xdr;
5366 struct compound_hdr hdr;
5367 int status;
5368
5369 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5370 status = decode_compound_hdr(&xdr, &hdr);
5371 if (status)
5372 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005373 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5374 if (status)
5375 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005376 status = decode_putfh(&xdr);
5377 if (status)
5378 goto out;
5379 status = decode_commit(&xdr, res);
Trond Myklebust4f9838c2005-10-27 22:12:44 -04005380 if (status)
5381 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005382 decode_getfattr(&xdr, res->fattr, res->server,
5383 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005384out:
5385 return status;
5386}
5387
5388/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05005389 * Decode FSINFO response
Linus Torvalds1da177e2005-04-16 15:20:36 -07005390 */
Benny Halevy3dda5e42009-04-01 09:21:57 -04005391static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p,
5392 struct nfs4_fsinfo_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005393{
5394 struct xdr_stream xdr;
5395 struct compound_hdr hdr;
5396 int status;
5397
5398 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5399 status = decode_compound_hdr(&xdr, &hdr);
5400 if (!status)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005401 status = decode_sequence(&xdr, &res->seq_res, req);
5402 if (!status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005403 status = decode_putfh(&xdr);
5404 if (!status)
Benny Halevy3dda5e42009-04-01 09:21:57 -04005405 status = decode_fsinfo(&xdr, res->fsinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005406 return status;
5407}
5408
5409/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05005410 * Decode PATHCONF response
Linus Torvalds1da177e2005-04-16 15:20:36 -07005411 */
Benny Halevyd45b2982009-04-01 09:21:58 -04005412static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p,
5413 struct nfs4_pathconf_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005414{
5415 struct xdr_stream xdr;
5416 struct compound_hdr hdr;
5417 int status;
5418
5419 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5420 status = decode_compound_hdr(&xdr, &hdr);
5421 if (!status)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005422 status = decode_sequence(&xdr, &res->seq_res, req);
5423 if (!status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005424 status = decode_putfh(&xdr);
5425 if (!status)
Benny Halevyd45b2982009-04-01 09:21:58 -04005426 status = decode_pathconf(&xdr, res->pathconf);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005427 return status;
5428}
5429
5430/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05005431 * Decode STATFS response
Linus Torvalds1da177e2005-04-16 15:20:36 -07005432 */
Benny Halevy24ad1482009-04-01 09:21:56 -04005433static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p,
5434 struct nfs4_statfs_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005435{
5436 struct xdr_stream xdr;
5437 struct compound_hdr hdr;
5438 int status;
5439
5440 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5441 status = decode_compound_hdr(&xdr, &hdr);
5442 if (!status)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005443 status = decode_sequence(&xdr, &res->seq_res, req);
5444 if (!status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005445 status = decode_putfh(&xdr);
5446 if (!status)
Benny Halevy24ad1482009-04-01 09:21:56 -04005447 status = decode_statfs(&xdr, res->fsstat);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005448 return status;
5449}
5450
5451/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05005452 * Decode GETATTR_BITMAP response
Linus Torvalds1da177e2005-04-16 15:20:36 -07005453 */
Al Viro8687b632006-10-19 23:28:48 -07005454static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005455{
5456 struct xdr_stream xdr;
5457 struct compound_hdr hdr;
5458 int status;
5459
5460 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005461 status = decode_compound_hdr(&xdr, &hdr);
5462 if (status)
5463 goto out;
5464 status = decode_sequence(&xdr, &res->seq_res, req);
5465 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005466 goto out;
5467 if ((status = decode_putfh(&xdr)) != 0)
5468 goto out;
5469 status = decode_server_caps(&xdr, res);
5470out:
5471 return status;
5472}
5473
5474/*
5475 * Decode RENEW response
5476 */
Al Viro8687b632006-10-19 23:28:48 -07005477static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005478{
5479 struct xdr_stream xdr;
5480 struct compound_hdr hdr;
5481 int status;
5482
5483 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5484 status = decode_compound_hdr(&xdr, &hdr);
5485 if (!status)
5486 status = decode_renew(&xdr);
5487 return status;
5488}
5489
5490/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05005491 * Decode SETCLIENTID response
Linus Torvalds1da177e2005-04-16 15:20:36 -07005492 */
Al Viro8687b632006-10-19 23:28:48 -07005493static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p,
David Howellsadfa6f92006-08-22 20:06:08 -04005494 struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005495{
5496 struct xdr_stream xdr;
5497 struct compound_hdr hdr;
5498 int status;
5499
5500 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5501 status = decode_compound_hdr(&xdr, &hdr);
5502 if (!status)
5503 status = decode_setclientid(&xdr, clp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005504 return status;
5505}
5506
5507/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05005508 * Decode SETCLIENTID_CONFIRM response
Linus Torvalds1da177e2005-04-16 15:20:36 -07005509 */
Al Viro8687b632006-10-19 23:28:48 -07005510static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005511{
5512 struct xdr_stream xdr;
5513 struct compound_hdr hdr;
5514 int status;
5515
5516 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5517 status = decode_compound_hdr(&xdr, &hdr);
5518 if (!status)
5519 status = decode_setclientid_confirm(&xdr);
5520 if (!status)
5521 status = decode_putrootfh(&xdr);
5522 if (!status)
5523 status = decode_fsinfo(&xdr, fsinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005524 return status;
5525}
5526
5527/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05005528 * Decode DELEGRETURN response
Linus Torvalds1da177e2005-04-16 15:20:36 -07005529 */
Al Viro8687b632006-10-19 23:28:48 -07005530static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005531{
5532 struct xdr_stream xdr;
5533 struct compound_hdr hdr;
5534 int status;
5535
5536 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5537 status = decode_compound_hdr(&xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005538 if (status)
5539 goto out;
5540 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5541 if (status)
Trond Myklebustfa178f22006-01-03 09:55:38 +01005542 goto out;
5543 status = decode_putfh(&xdr);
5544 if (status != 0)
5545 goto out;
5546 status = decode_delegreturn(&xdr);
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005547 decode_getfattr(&xdr, res->fattr, res->server,
5548 !RPC_IS_ASYNC(rqstp->rq_task));
Trond Myklebustfa178f22006-01-03 09:55:38 +01005549out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07005550 return status;
5551}
5552
Trond Myklebust683b57b2006-06-09 09:34:22 -04005553/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05005554 * Decode FS_LOCATIONS response
Trond Myklebust683b57b2006-06-09 09:34:22 -04005555 */
Benny Halevy22958462009-04-01 09:22:02 -04005556static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p,
5557 struct nfs4_fs_locations_res *res)
Trond Myklebust683b57b2006-06-09 09:34:22 -04005558{
5559 struct xdr_stream xdr;
5560 struct compound_hdr hdr;
5561 int status;
5562
5563 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5564 status = decode_compound_hdr(&xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005565 if (status)
5566 goto out;
5567 status = decode_sequence(&xdr, &res->seq_res, req);
5568 if (status)
Trond Myklebust683b57b2006-06-09 09:34:22 -04005569 goto out;
5570 if ((status = decode_putfh(&xdr)) != 0)
5571 goto out;
5572 if ((status = decode_lookup(&xdr)) != 0)
5573 goto out;
5574 xdr_enter_page(&xdr, PAGE_SIZE);
Benny Halevy22958462009-04-01 09:22:02 -04005575 status = decode_getfattr(&xdr, &res->fs_locations->fattr,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005576 res->fs_locations->server,
5577 !RPC_IS_ASYNC(req->rq_task));
Trond Myklebust683b57b2006-06-09 09:34:22 -04005578out:
5579 return status;
5580}
5581
Benny Halevy99fe60d2009-04-01 09:22:29 -04005582#if defined(CONFIG_NFS_V4_1)
5583/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05005584 * Decode EXCHANGE_ID response
Benny Halevy99fe60d2009-04-01 09:22:29 -04005585 */
5586static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p,
5587 void *res)
5588{
5589 struct xdr_stream xdr;
5590 struct compound_hdr hdr;
5591 int status;
5592
5593 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5594 status = decode_compound_hdr(&xdr, &hdr);
5595 if (!status)
5596 status = decode_exchange_id(&xdr, res);
5597 return status;
5598}
Andy Adamson2050f0c2009-04-01 09:22:30 -04005599
5600/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05005601 * Decode CREATE_SESSION response
Andy Adamsonfc931582009-04-01 09:22:31 -04005602 */
5603static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p,
5604 struct nfs41_create_session_res *res)
5605{
5606 struct xdr_stream xdr;
5607 struct compound_hdr hdr;
5608 int status;
5609
5610 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5611 status = decode_compound_hdr(&xdr, &hdr);
5612 if (!status)
5613 status = decode_create_session(&xdr, res);
5614 return status;
5615}
5616
5617/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05005618 * Decode DESTROY_SESSION response
Andy Adamson0f3e66c2009-04-01 09:22:34 -04005619 */
5620static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p,
5621 void *dummy)
5622{
5623 struct xdr_stream xdr;
5624 struct compound_hdr hdr;
5625 int status;
5626
5627 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5628 status = decode_compound_hdr(&xdr, &hdr);
5629 if (!status)
5630 status = decode_destroy_session(&xdr, dummy);
5631 return status;
5632}
5633
5634/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05005635 * Decode SEQUENCE response
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005636 */
5637static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p,
5638 struct nfs4_sequence_res *res)
5639{
5640 struct xdr_stream xdr;
5641 struct compound_hdr hdr;
5642 int status;
5643
5644 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5645 status = decode_compound_hdr(&xdr, &hdr);
5646 if (!status)
5647 status = decode_sequence(&xdr, res, rqstp);
5648 return status;
5649}
5650
5651/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05005652 * Decode GET_LEASE_TIME response
Andy Adamson2050f0c2009-04-01 09:22:30 -04005653 */
5654static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p,
5655 struct nfs4_get_lease_time_res *res)
5656{
5657 struct xdr_stream xdr;
5658 struct compound_hdr hdr;
5659 int status;
5660
5661 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5662 status = decode_compound_hdr(&xdr, &hdr);
5663 if (!status)
5664 status = decode_sequence(&xdr, &res->lr_seq_res, rqstp);
5665 if (!status)
5666 status = decode_putrootfh(&xdr);
5667 if (!status)
5668 status = decode_fsinfo(&xdr, res->lr_fsinfo);
5669 return status;
5670}
Ricardo Labiaga18019752009-12-05 16:08:40 -05005671
5672/*
5673 * Decode RECLAIM_COMPLETE response
5674 */
5675static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, uint32_t *p,
5676 struct nfs41_reclaim_complete_res *res)
5677{
5678 struct xdr_stream xdr;
5679 struct compound_hdr hdr;
5680 int status;
5681
5682 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5683 status = decode_compound_hdr(&xdr, &hdr);
5684 if (!status)
5685 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5686 if (!status)
5687 status = decode_reclaim_complete(&xdr, (void *)NULL);
5688 return status;
5689}
Benny Halevy99fe60d2009-04-01 09:22:29 -04005690#endif /* CONFIG_NFS_V4_1 */
5691
Al Viro0dbb4c62006-10-19 23:28:49 -07005692__be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005693{
5694 uint32_t bitmap[2] = {0};
5695 uint32_t len;
5696
5697 if (!*p++) {
5698 if (!*p)
5699 return ERR_PTR(-EAGAIN);
5700 entry->eof = 1;
5701 return ERR_PTR(-EBADCOOKIE);
5702 }
5703
5704 entry->prev_cookie = entry->cookie;
5705 p = xdr_decode_hyper(p, &entry->cookie);
5706 entry->len = ntohl(*p++);
5707 entry->name = (const char *) p;
5708 p += XDR_QUADLEN(entry->len);
5709
5710 /*
5711 * In case the server doesn't return an inode number,
5712 * we fake one here. (We don't use inode number 0,
5713 * since glibc seems to choke on it...)
5714 */
5715 entry->ino = 1;
5716
5717 len = ntohl(*p++); /* bitmap length */
5718 if (len-- > 0) {
5719 bitmap[0] = ntohl(*p++);
5720 if (len-- > 0) {
5721 bitmap[1] = ntohl(*p++);
5722 p += len;
5723 }
5724 }
5725 len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */
5726 if (len > 0) {
Manoj Naik97d312d2005-06-22 17:16:39 +00005727 if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) {
5728 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
5729 /* Ignore the return value of rdattr_error for now */
5730 p++;
5731 len--;
5732 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005733 if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID)
5734 xdr_decode_hyper(p, &entry->ino);
5735 else if (bitmap[0] == FATTR4_WORD0_FILEID)
5736 xdr_decode_hyper(p, &entry->ino);
5737 p += len;
5738 }
5739
5740 entry->eof = !p[0] && p[1];
5741 return p;
5742}
5743
5744/*
5745 * We need to translate between nfs status return values and
5746 * the local errno values which may not be the same.
5747 */
5748static struct {
5749 int stat;
5750 int errno;
5751} nfs_errtbl[] = {
5752 { NFS4_OK, 0 },
Benny Halevy856dff32008-03-31 17:39:06 +03005753 { NFS4ERR_PERM, -EPERM },
5754 { NFS4ERR_NOENT, -ENOENT },
5755 { NFS4ERR_IO, -errno_NFSERR_IO},
5756 { NFS4ERR_NXIO, -ENXIO },
5757 { NFS4ERR_ACCESS, -EACCES },
5758 { NFS4ERR_EXIST, -EEXIST },
5759 { NFS4ERR_XDEV, -EXDEV },
5760 { NFS4ERR_NOTDIR, -ENOTDIR },
5761 { NFS4ERR_ISDIR, -EISDIR },
5762 { NFS4ERR_INVAL, -EINVAL },
5763 { NFS4ERR_FBIG, -EFBIG },
5764 { NFS4ERR_NOSPC, -ENOSPC },
5765 { NFS4ERR_ROFS, -EROFS },
5766 { NFS4ERR_MLINK, -EMLINK },
5767 { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG },
5768 { NFS4ERR_NOTEMPTY, -ENOTEMPTY },
5769 { NFS4ERR_DQUOT, -EDQUOT },
5770 { NFS4ERR_STALE, -ESTALE },
5771 { NFS4ERR_BADHANDLE, -EBADHANDLE },
5772 { NFS4ERR_BADOWNER, -EINVAL },
5773 { NFS4ERR_BADNAME, -EINVAL },
5774 { NFS4ERR_BAD_COOKIE, -EBADCOOKIE },
5775 { NFS4ERR_NOTSUPP, -ENOTSUPP },
5776 { NFS4ERR_TOOSMALL, -ETOOSMALL },
5777 { NFS4ERR_SERVERFAULT, -ESERVERFAULT },
5778 { NFS4ERR_BADTYPE, -EBADTYPE },
5779 { NFS4ERR_LOCKED, -EAGAIN },
Benny Halevy856dff32008-03-31 17:39:06 +03005780 { NFS4ERR_SYMLINK, -ELOOP },
5781 { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP },
5782 { NFS4ERR_DEADLOCK, -EDEADLK },
5783 { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs
Linus Torvalds1da177e2005-04-16 15:20:36 -07005784 * to be handled by a
5785 * middle-layer.
5786 */
Benny Halevy856dff32008-03-31 17:39:06 +03005787 { -1, -EIO }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005788};
5789
5790/*
5791 * Convert an NFS error code to a local one.
5792 * This one is used jointly by NFSv2 and NFSv3.
5793 */
5794static int
David Howells0a8ea432006-08-22 20:06:08 -04005795nfs4_stat_to_errno(int stat)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005796{
5797 int i;
5798 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
5799 if (nfs_errtbl[i].stat == stat)
5800 return nfs_errtbl[i].errno;
5801 }
5802 if (stat <= 10000 || stat > 10100) {
5803 /* The server is looney tunes. */
Benny Halevy856dff32008-03-31 17:39:06 +03005804 return -ESERVERFAULT;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005805 }
5806 /* If we cannot translate the error, the recovery routines should
5807 * handle it.
5808 * Note: remaining NFSv4 error codes have values > 10000, so should
5809 * not conflict with native Linux error codes.
5810 */
Benny Halevy856dff32008-03-31 17:39:06 +03005811 return -stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005812}
5813
Linus Torvalds1da177e2005-04-16 15:20:36 -07005814#define PROC(proc, argtype, restype) \
5815[NFSPROC4_CLNT_##proc] = { \
5816 .p_proc = NFSPROC4_COMPOUND, \
5817 .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \
5818 .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \
Chuck Lever2bea90d2007-03-29 16:47:53 -04005819 .p_arglen = NFS4_##argtype##_sz, \
5820 .p_replen = NFS4_##restype##_sz, \
Chuck Levercc0175c2006-03-20 13:44:22 -05005821 .p_statidx = NFSPROC4_CLNT_##proc, \
5822 .p_name = #proc, \
Andy Adamson05d564f2008-12-23 16:06:15 -05005823}
Linus Torvalds1da177e2005-04-16 15:20:36 -07005824
5825struct rpc_procinfo nfs4_procedures[] = {
5826 PROC(READ, enc_read, dec_read),
5827 PROC(WRITE, enc_write, dec_write),
5828 PROC(COMMIT, enc_commit, dec_commit),
5829 PROC(OPEN, enc_open, dec_open),
5830 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
5831 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
5832 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
5833 PROC(CLOSE, enc_close, dec_close),
5834 PROC(SETATTR, enc_setattr, dec_setattr),
5835 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
5836 PROC(RENEW, enc_renew, dec_renew),
5837 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
5838 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
5839 PROC(LOCK, enc_lock, dec_lock),
5840 PROC(LOCKT, enc_lockt, dec_lockt),
5841 PROC(LOCKU, enc_locku, dec_locku),
5842 PROC(ACCESS, enc_access, dec_access),
5843 PROC(GETATTR, enc_getattr, dec_getattr),
5844 PROC(LOOKUP, enc_lookup, dec_lookup),
5845 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
5846 PROC(REMOVE, enc_remove, dec_remove),
5847 PROC(RENAME, enc_rename, dec_rename),
5848 PROC(LINK, enc_link, dec_link),
5849 PROC(SYMLINK, enc_symlink, dec_symlink),
5850 PROC(CREATE, enc_create, dec_create),
5851 PROC(PATHCONF, enc_pathconf, dec_pathconf),
5852 PROC(STATFS, enc_statfs, dec_statfs),
5853 PROC(READLINK, enc_readlink, dec_readlink),
5854 PROC(READDIR, enc_readdir, dec_readdir),
5855 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
5856 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
J. Bruce Fields029d1052005-06-22 17:16:22 +00005857 PROC(GETACL, enc_getacl, dec_getacl),
J. Bruce Fields23ec6962005-06-22 17:16:22 +00005858 PROC(SETACL, enc_setacl, dec_setacl),
Trond Myklebust683b57b2006-06-09 09:34:22 -04005859 PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
Benny Halevy99fe60d2009-04-01 09:22:29 -04005860#if defined(CONFIG_NFS_V4_1)
5861 PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
Andy Adamsonfc931582009-04-01 09:22:31 -04005862 PROC(CREATE_SESSION, enc_create_session, dec_create_session),
Andy Adamson0f3e66c2009-04-01 09:22:34 -04005863 PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session),
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005864 PROC(SEQUENCE, enc_sequence, dec_sequence),
Andy Adamson2050f0c2009-04-01 09:22:30 -04005865 PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time),
Ricardo Labiaga18019752009-12-05 16:08:40 -05005866 PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete),
Benny Halevy99fe60d2009-04-01 09:22:29 -04005867#endif /* CONFIG_NFS_V4_1 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005868};
5869
5870struct rpc_version nfs_version4 = {
5871 .number = 4,
Tobias Klausere8c96f82006-03-24 03:15:34 -08005872 .nrprocs = ARRAY_SIZE(nfs4_procedures),
Linus Torvalds1da177e2005-04-16 15:20:36 -07005873 .procs = nfs4_procedures
5874};
5875
5876/*
5877 * Local variables:
5878 * c-basic-offset: 8
5879 * End:
5880 */