blob: cfc30d362f94e5ab60c4724ce97a2cf9f6d75626 [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>
42#include <linux/utsname.h>
43#include <linux/errno.h>
44#include <linux/string.h>
45#include <linux/in.h>
46#include <linux/pagemap.h>
47#include <linux/proc_fs.h>
48#include <linux/kdev_t.h>
49#include <linux/sunrpc/clnt.h>
50#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"
Linus Torvalds1da177e2005-04-16 15:20:36 -070055
56#define NFSDBG_FACILITY NFSDBG_XDR
57
58/* Mapping from NFS error code to "errno" error code. */
59#define errno_NFSERR_IO EIO
60
David Howells0a8ea432006-08-22 20:06:08 -040061static int nfs4_stat_to_errno(int);
Linus Torvalds1da177e2005-04-16 15:20:36 -070062
63/* NFSv4 COMPOUND tags are only wanted for debugging purposes */
64#ifdef DEBUG
65#define NFS4_MAXTAGLEN 20
66#else
67#define NFS4_MAXTAGLEN 0
68#endif
69
Andy Adamson6c0195a2008-12-23 16:06:15 -050070/* lock,open owner id:
Trond Myklebust9f958ab2007-07-02 13:58:33 -040071 * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -070072 */
Trond Myklebust9f958ab2007-07-02 13:58:33 -040073#define open_owner_id_maxsz (1 + 4)
74#define lock_owner_id_maxsz (1 + 4)
Trond Myklebust9104a552007-07-17 21:52:42 -040075#define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
Linus Torvalds1da177e2005-04-16 15:20:36 -070076#define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
77#define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
78#define op_encode_hdr_maxsz (1)
79#define op_decode_hdr_maxsz (2)
Trond Myklebust9104a552007-07-17 21:52:42 -040080#define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
81#define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
82#define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
83#define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
Linus Torvalds1da177e2005-04-16 15:20:36 -070084#define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
85 (NFS4_FHSIZE >> 2))
86#define decode_putfh_maxsz (op_decode_hdr_maxsz)
87#define encode_putrootfh_maxsz (op_encode_hdr_maxsz)
88#define decode_putrootfh_maxsz (op_decode_hdr_maxsz)
89#define encode_getfh_maxsz (op_encode_hdr_maxsz)
90#define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
91 ((3+NFS4_FHSIZE) >> 2))
J. Bruce Fields96928202005-06-22 17:16:22 +000092#define nfs4_fattr_bitmap_maxsz 3
93#define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -070094#define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
95#define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
Trond Myklebustbd625ba2007-07-08 18:38:23 -040096#define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
97#define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
J. Bruce Fields96928202005-06-22 17:16:22 +000098/* This is based on getfattr, which uses the most attributes: */
99#define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
Trond Myklebustbd625ba2007-07-08 18:38:23 -0400100 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz))
J. Bruce Fields96928202005-06-22 17:16:22 +0000101#define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
102 nfs4_fattr_value_maxsz)
103#define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400104#define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
105 1 + 2 + 1 + \
106 nfs4_owner_maxsz + \
107 nfs4_group_maxsz + \
108 4 + 4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109#define encode_savefh_maxsz (op_encode_hdr_maxsz)
110#define decode_savefh_maxsz (op_decode_hdr_maxsz)
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400111#define encode_restorefh_maxsz (op_encode_hdr_maxsz)
112#define decode_restorefh_maxsz (op_decode_hdr_maxsz)
Fred Isaman2f42b5d2008-03-13 15:26:30 +0200113#define encode_fsinfo_maxsz (encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114#define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11)
115#define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
116#define decode_renew_maxsz (op_decode_hdr_maxsz)
117#define encode_setclientid_maxsz \
118 (op_encode_hdr_maxsz + \
Chuck Levercc38bac2007-12-10 14:56:54 -0500119 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
120 XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \
121 1 /* sc_prog */ + \
122 XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
123 XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
124 1) /* sc_cb_ident */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125#define decode_setclientid_maxsz \
126 (op_decode_hdr_maxsz + \
127 2 + \
128 1024) /* large value for CLID_INUSE */
129#define encode_setclientid_confirm_maxsz \
130 (op_encode_hdr_maxsz + \
131 3 + (NFS4_VERIFIER_SIZE >> 2))
132#define decode_setclientid_confirm_maxsz \
133 (op_decode_hdr_maxsz)
Trond Myklebuste6889622007-07-02 13:58:30 -0400134#define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
135#define decode_lookup_maxsz (op_decode_hdr_maxsz)
Trond Myklebust2cebf822007-07-02 13:57:28 -0400136#define encode_share_access_maxsz \
137 (2)
Trond Myklebust9104a552007-07-17 21:52:42 -0400138#define encode_createmode_maxsz (1 + encode_attrs_maxsz)
Trond Myklebust2cebf822007-07-02 13:57:28 -0400139#define encode_opentype_maxsz (1 + encode_createmode_maxsz)
140#define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
141#define encode_open_maxsz (op_encode_hdr_maxsz + \
142 2 + encode_share_access_maxsz + 2 + \
143 open_owner_id_maxsz + \
144 encode_opentype_maxsz + \
145 encode_claim_null_maxsz)
146#define decode_ace_maxsz (3 + nfs4_owner_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400147#define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400148 decode_ace_maxsz)
149#define decode_change_info_maxsz (5)
150#define decode_open_maxsz (op_decode_hdr_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400151 decode_stateid_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400152 decode_change_info_maxsz + 1 + \
153 nfs4_fattr_bitmap_maxsz + \
154 decode_delegation_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400155#define encode_open_confirm_maxsz \
156 (op_encode_hdr_maxsz + \
157 encode_stateid_maxsz + 1)
158#define decode_open_confirm_maxsz \
159 (op_decode_hdr_maxsz + \
160 decode_stateid_maxsz)
161#define encode_open_downgrade_maxsz \
162 (op_encode_hdr_maxsz + \
163 encode_stateid_maxsz + 1 + \
164 encode_share_access_maxsz)
165#define decode_open_downgrade_maxsz \
166 (op_decode_hdr_maxsz + \
167 decode_stateid_maxsz)
168#define encode_close_maxsz (op_encode_hdr_maxsz + \
169 1 + encode_stateid_maxsz)
170#define decode_close_maxsz (op_decode_hdr_maxsz + \
171 decode_stateid_maxsz)
172#define encode_setattr_maxsz (op_encode_hdr_maxsz + \
173 encode_stateid_maxsz + \
174 encode_attrs_maxsz)
175#define decode_setattr_maxsz (op_decode_hdr_maxsz + \
176 nfs4_fattr_bitmap_maxsz)
177#define encode_read_maxsz (op_encode_hdr_maxsz + \
178 encode_stateid_maxsz + 3)
179#define decode_read_maxsz (op_decode_hdr_maxsz + 2)
180#define encode_readdir_maxsz (op_encode_hdr_maxsz + \
181 2 + encode_verifier_maxsz + 5)
182#define decode_readdir_maxsz (op_decode_hdr_maxsz + \
183 decode_verifier_maxsz)
184#define encode_readlink_maxsz (op_encode_hdr_maxsz)
185#define decode_readlink_maxsz (op_decode_hdr_maxsz + 1)
186#define encode_write_maxsz (op_encode_hdr_maxsz + \
187 encode_stateid_maxsz + 4)
188#define decode_write_maxsz (op_decode_hdr_maxsz + \
189 2 + decode_verifier_maxsz)
190#define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
191#define decode_commit_maxsz (op_decode_hdr_maxsz + \
192 decode_verifier_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193#define encode_remove_maxsz (op_encode_hdr_maxsz + \
194 nfs4_name_maxsz)
Benny Halevy6ce18392009-04-01 09:22:06 -0400195#define decode_remove_maxsz (op_decode_hdr_maxsz + \
196 decode_change_info_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197#define encode_rename_maxsz (op_encode_hdr_maxsz + \
198 2 * nfs4_name_maxsz)
Benny Halevy6ce18392009-04-01 09:22:06 -0400199#define decode_rename_maxsz (op_decode_hdr_maxsz + \
200 decode_change_info_maxsz + \
201 decode_change_info_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202#define encode_link_maxsz (op_encode_hdr_maxsz + \
203 nfs4_name_maxsz)
Benny Halevy6ce18392009-04-01 09:22:06 -0400204#define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400205#define encode_lock_maxsz (op_encode_hdr_maxsz + \
206 7 + \
207 1 + encode_stateid_maxsz + 8)
208#define decode_lock_denied_maxsz \
209 (8 + decode_lockowner_maxsz)
210#define decode_lock_maxsz (op_decode_hdr_maxsz + \
211 decode_lock_denied_maxsz)
212#define encode_lockt_maxsz (op_encode_hdr_maxsz + 12)
213#define decode_lockt_maxsz (op_decode_hdr_maxsz + \
214 decode_lock_denied_maxsz)
215#define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
216 encode_stateid_maxsz + \
217 4)
218#define decode_locku_maxsz (op_decode_hdr_maxsz + \
219 decode_stateid_maxsz)
220#define encode_access_maxsz (op_encode_hdr_maxsz + 1)
221#define decode_access_maxsz (op_decode_hdr_maxsz + 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222#define encode_symlink_maxsz (op_encode_hdr_maxsz + \
223 1 + nfs4_name_maxsz + \
Chuck Lever94a6d752006-08-22 20:06:23 -0400224 1 + \
J. Bruce Fields96928202005-06-22 17:16:22 +0000225 nfs4_fattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226#define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
227#define encode_create_maxsz (op_encode_hdr_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400228 1 + 2 + nfs4_name_maxsz + \
229 encode_attrs_maxsz)
Trond Myklebust2cebf822007-07-02 13:57:28 -0400230#define decode_create_maxsz (op_decode_hdr_maxsz + \
231 decode_change_info_maxsz + \
232 nfs4_fattr_bitmap_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400233#define encode_statfs_maxsz (encode_getattr_maxsz)
234#define decode_statfs_maxsz (decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235#define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
236#define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400237#define encode_getacl_maxsz (encode_getattr_maxsz)
238#define decode_getacl_maxsz (op_decode_hdr_maxsz + \
239 nfs4_fattr_bitmap_maxsz + 1)
240#define encode_setacl_maxsz (op_encode_hdr_maxsz + \
241 encode_stateid_maxsz + 3)
242#define decode_setacl_maxsz (decode_setattr_maxsz)
Trond Myklebuste6889622007-07-02 13:58:30 -0400243#define encode_fs_locations_maxsz \
244 (encode_getattr_maxsz)
245#define decode_fs_locations_maxsz \
246 (0)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400247
248#if defined(CONFIG_NFS_V4_1)
Andy Adamsonfc931582009-04-01 09:22:31 -0400249#define NFS4_MAX_MACHINE_NAME_LEN (64)
250
Benny Halevy99fe60d2009-04-01 09:22:29 -0400251#define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
252 encode_verifier_maxsz + \
253 1 /* co_ownerid.len */ + \
254 XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \
255 1 /* flags */ + \
256 1 /* spa_how */ + \
257 0 /* SP4_NONE (for now) */ + \
258 1 /* zero implemetation id array */)
259#define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
260 2 /* eir_clientid */ + \
261 1 /* eir_sequenceid */ + \
262 1 /* eir_flags */ + \
263 1 /* spr_how */ + \
264 0 /* SP4_NONE (for now) */ + \
265 2 /* eir_server_owner.so_minor_id */ + \
266 /* eir_server_owner.so_major_id<> */ \
267 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
268 /* eir_server_scope<> */ \
269 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
270 1 /* eir_server_impl_id array length */ + \
271 0 /* ignored eir_server_impl_id contents */)
Andy Adamsonfc931582009-04-01 09:22:31 -0400272#define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
273#define decode_channel_attrs_maxsz (6 + \
274 1 /* ca_rdma_ird.len */ + \
275 1 /* ca_rdma_ird */)
276#define encode_create_session_maxsz (op_encode_hdr_maxsz + \
277 2 /* csa_clientid */ + \
278 1 /* csa_sequence */ + \
279 1 /* csa_flags */ + \
280 encode_channel_attrs_maxsz + \
281 encode_channel_attrs_maxsz + \
282 1 /* csa_cb_program */ + \
283 1 /* csa_sec_parms.len (1) */ + \
284 1 /* cb_secflavor (AUTH_SYS) */ + \
285 1 /* stamp */ + \
286 1 /* machinename.len */ + \
287 XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
288 1 /* uid */ + \
289 1 /* gid */ + \
290 1 /* gids.len (0) */)
291#define decode_create_session_maxsz (op_decode_hdr_maxsz + \
292 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
293 1 /* csr_sequence */ + \
294 1 /* csr_flags */ + \
295 decode_channel_attrs_maxsz + \
296 decode_channel_attrs_maxsz)
Andy Adamson0f3e66c2009-04-01 09:22:34 -0400297#define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
298#define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
Andy Adamsonfc01cea2009-04-01 09:22:36 -0400299#define encode_sequence_maxsz (op_encode_hdr_maxsz + \
300 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
301#define decode_sequence_maxsz (op_decode_hdr_maxsz + \
302 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400303#else /* CONFIG_NFS_V4_1 */
304#define encode_sequence_maxsz 0
305#define decode_sequence_maxsz 0
306#endif /* CONFIG_NFS_V4_1 */
307
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308#define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
309#define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
310#define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400311 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400313 encode_read_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314#define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400315 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400317 decode_read_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318#define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400319 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400321 encode_readlink_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322#define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400323 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400325 decode_readlink_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326#define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400327 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400329 encode_readdir_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330#define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400331 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400333 decode_readdir_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334#define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400335 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400337 encode_write_maxsz + \
Trond Myklebust4f9838c2005-10-27 22:12:44 -0400338 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339#define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400340 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400342 decode_write_maxsz + \
Trond Myklebust4f9838c2005-10-27 22:12:44 -0400343 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344#define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400345 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400347 encode_commit_maxsz + \
Trond Myklebust4f9838c2005-10-27 22:12:44 -0400348 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349#define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400350 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400352 decode_commit_maxsz + \
Trond Myklebust4f9838c2005-10-27 22:12:44 -0400353 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354#define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400355 encode_sequence_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400356 encode_putfh_maxsz + \
357 encode_savefh_maxsz + \
358 encode_open_maxsz + \
359 encode_getfh_maxsz + \
360 encode_getattr_maxsz + \
361 encode_restorefh_maxsz + \
362 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363#define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400364 decode_sequence_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400365 decode_putfh_maxsz + \
366 decode_savefh_maxsz + \
367 decode_open_maxsz + \
368 decode_getfh_maxsz + \
369 decode_getattr_maxsz + \
370 decode_restorefh_maxsz + \
371 decode_getattr_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400372#define NFS4_enc_open_confirm_sz \
373 (compound_encode_hdr_maxsz + \
374 encode_putfh_maxsz + \
375 encode_open_confirm_maxsz)
376#define NFS4_dec_open_confirm_sz \
377 (compound_decode_hdr_maxsz + \
378 decode_putfh_maxsz + \
379 decode_open_confirm_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380#define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400381 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 encode_putfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400383 encode_open_maxsz + \
384 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385#define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400386 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387 decode_putfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400388 decode_open_maxsz + \
389 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390#define NFS4_enc_open_downgrade_sz \
391 (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400392 encode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400393 encode_putfh_maxsz + \
394 encode_open_downgrade_maxsz + \
395 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396#define NFS4_dec_open_downgrade_sz \
397 (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400398 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400399 decode_putfh_maxsz + \
400 decode_open_downgrade_maxsz + \
401 decode_getattr_maxsz)
402#define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400403 encode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400404 encode_putfh_maxsz + \
405 encode_close_maxsz + \
406 encode_getattr_maxsz)
407#define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400408 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400409 decode_putfh_maxsz + \
410 decode_close_maxsz + \
411 decode_getattr_maxsz)
412#define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400413 encode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400414 encode_putfh_maxsz + \
415 encode_setattr_maxsz + \
416 encode_getattr_maxsz)
417#define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400418 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400419 decode_putfh_maxsz + \
420 decode_setattr_maxsz + \
421 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422#define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400423 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424 encode_putfh_maxsz + \
425 encode_fsinfo_maxsz)
426#define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400427 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700428 decode_putfh_maxsz + \
429 decode_fsinfo_maxsz)
430#define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
431 encode_renew_maxsz)
432#define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
433 decode_renew_maxsz)
434#define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
435 encode_setclientid_maxsz)
436#define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
437 decode_setclientid_maxsz)
438#define NFS4_enc_setclientid_confirm_sz \
439 (compound_encode_hdr_maxsz + \
440 encode_setclientid_confirm_maxsz + \
441 encode_putrootfh_maxsz + \
442 encode_fsinfo_maxsz)
443#define NFS4_dec_setclientid_confirm_sz \
444 (compound_decode_hdr_maxsz + \
445 decode_setclientid_confirm_maxsz + \
446 decode_putrootfh_maxsz + \
447 decode_fsinfo_maxsz)
448#define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400449 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400451 encode_lock_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452#define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400453 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400455 decode_lock_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456#define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400457 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400459 encode_lockt_maxsz)
460#define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400461 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400462 decode_putfh_maxsz + \
463 decode_lockt_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464#define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400465 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700466 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400467 encode_locku_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700468#define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400469 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700470 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400471 decode_locku_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472#define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400473 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 encode_putfh_maxsz + \
Trond Myklebust76b32992007-08-10 17:45:11 -0400475 encode_access_maxsz + \
476 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477#define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400478 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700479 decode_putfh_maxsz + \
Trond Myklebust76b32992007-08-10 17:45:11 -0400480 decode_access_maxsz + \
481 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482#define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400483 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484 encode_putfh_maxsz + \
485 encode_getattr_maxsz)
486#define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400487 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488 decode_putfh_maxsz + \
489 decode_getattr_maxsz)
490#define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400491 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492 encode_putfh_maxsz + \
493 encode_lookup_maxsz + \
494 encode_getattr_maxsz + \
495 encode_getfh_maxsz)
496#define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400497 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700498 decode_putfh_maxsz + \
Trond Myklebuste6889622007-07-02 13:58:30 -0400499 decode_lookup_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500 decode_getattr_maxsz + \
501 decode_getfh_maxsz)
502#define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400503 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700504 encode_putrootfh_maxsz + \
505 encode_getattr_maxsz + \
506 encode_getfh_maxsz)
507#define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400508 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700509 decode_putrootfh_maxsz + \
510 decode_getattr_maxsz + \
511 decode_getfh_maxsz)
512#define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400513 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514 encode_putfh_maxsz + \
Trond Myklebust16e42952005-10-27 22:12:44 -0400515 encode_remove_maxsz + \
516 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700517#define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400518 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519 decode_putfh_maxsz + \
Benny Halevy6ce18392009-04-01 09:22:06 -0400520 decode_remove_maxsz + \
Trond Myklebust16e42952005-10-27 22:12:44 -0400521 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522#define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400523 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524 encode_putfh_maxsz + \
525 encode_savefh_maxsz + \
526 encode_putfh_maxsz + \
Trond Myklebust6caf2c82005-10-27 22:12:43 -0400527 encode_rename_maxsz + \
528 encode_getattr_maxsz + \
529 encode_restorefh_maxsz + \
530 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531#define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400532 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533 decode_putfh_maxsz + \
534 decode_savefh_maxsz + \
535 decode_putfh_maxsz + \
Trond Myklebust6caf2c82005-10-27 22:12:43 -0400536 decode_rename_maxsz + \
537 decode_getattr_maxsz + \
538 decode_restorefh_maxsz + \
539 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540#define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400541 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700542 encode_putfh_maxsz + \
543 encode_savefh_maxsz + \
544 encode_putfh_maxsz + \
Trond Myklebust91ba2ee2005-10-27 22:12:42 -0400545 encode_link_maxsz + \
546 decode_getattr_maxsz + \
547 encode_restorefh_maxsz + \
548 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700549#define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400550 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551 decode_putfh_maxsz + \
552 decode_savefh_maxsz + \
553 decode_putfh_maxsz + \
Trond Myklebust91ba2ee2005-10-27 22:12:42 -0400554 decode_link_maxsz + \
555 decode_getattr_maxsz + \
556 decode_restorefh_maxsz + \
557 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700558#define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400559 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560 encode_putfh_maxsz + \
561 encode_symlink_maxsz + \
562 encode_getattr_maxsz + \
563 encode_getfh_maxsz)
564#define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400565 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566 decode_putfh_maxsz + \
567 decode_symlink_maxsz + \
568 decode_getattr_maxsz + \
569 decode_getfh_maxsz)
570#define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400571 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572 encode_putfh_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400573 encode_savefh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574 encode_create_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400575 encode_getfh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576 encode_getattr_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400577 encode_restorefh_maxsz + \
578 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579#define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400580 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581 decode_putfh_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400582 decode_savefh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700583 decode_create_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400584 decode_getfh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585 decode_getattr_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400586 decode_restorefh_maxsz + \
587 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588#define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400589 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590 encode_putfh_maxsz + \
591 encode_getattr_maxsz)
592#define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400593 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700594 decode_putfh_maxsz + \
595 decode_getattr_maxsz)
596#define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400597 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700598 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400599 encode_statfs_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600#define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400601 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400603 decode_statfs_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700604#define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400605 encode_sequence_maxsz + \
Trond Myklebustab91f262007-02-02 14:47:17 -0800606 encode_putfh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607 encode_getattr_maxsz)
608#define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400609 decode_sequence_maxsz + \
Trond Myklebustab91f262007-02-02 14:47:17 -0800610 decode_putfh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700611 decode_getattr_maxsz)
612#define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400613 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700614 encode_putfh_maxsz + \
Trond Myklebustfa178f22006-01-03 09:55:38 +0100615 encode_delegreturn_maxsz + \
616 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617#define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400618 decode_sequence_maxsz + \
Trond Myklebustfa178f22006-01-03 09:55:38 +0100619 decode_delegreturn_maxsz + \
620 decode_getattr_maxsz)
J. Bruce Fields029d1052005-06-22 17:16:22 +0000621#define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400622 encode_sequence_maxsz + \
J. Bruce Fields029d1052005-06-22 17:16:22 +0000623 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400624 encode_getacl_maxsz)
J. Bruce Fields029d1052005-06-22 17:16:22 +0000625#define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400626 decode_sequence_maxsz + \
J. Bruce Fields029d1052005-06-22 17:16:22 +0000627 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400628 decode_getacl_maxsz)
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000629#define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400630 encode_sequence_maxsz + \
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000631 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400632 encode_setacl_maxsz)
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000633#define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400634 decode_sequence_maxsz + \
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000635 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400636 decode_setacl_maxsz)
Trond Myklebust683b57b2006-06-09 09:34:22 -0400637#define NFS4_enc_fs_locations_sz \
638 (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400639 encode_sequence_maxsz + \
Trond Myklebust683b57b2006-06-09 09:34:22 -0400640 encode_putfh_maxsz + \
Trond Myklebuste6889622007-07-02 13:58:30 -0400641 encode_lookup_maxsz + \
642 encode_fs_locations_maxsz)
Trond Myklebust683b57b2006-06-09 09:34:22 -0400643#define NFS4_dec_fs_locations_sz \
644 (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400645 decode_sequence_maxsz + \
Trond Myklebust683b57b2006-06-09 09:34:22 -0400646 decode_putfh_maxsz + \
Trond Myklebuste6889622007-07-02 13:58:30 -0400647 decode_lookup_maxsz + \
648 decode_fs_locations_maxsz)
Benny Halevy99fe60d2009-04-01 09:22:29 -0400649#if defined(CONFIG_NFS_V4_1)
650#define NFS4_enc_exchange_id_sz \
651 (compound_encode_hdr_maxsz + \
652 encode_exchange_id_maxsz)
653#define NFS4_dec_exchange_id_sz \
654 (compound_decode_hdr_maxsz + \
655 decode_exchange_id_maxsz)
Andy Adamsonfc931582009-04-01 09:22:31 -0400656#define NFS4_enc_create_session_sz \
657 (compound_encode_hdr_maxsz + \
658 encode_create_session_maxsz)
659#define NFS4_dec_create_session_sz \
660 (compound_decode_hdr_maxsz + \
661 decode_create_session_maxsz)
Andy Adamson0f3e66c2009-04-01 09:22:34 -0400662#define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
663 encode_destroy_session_maxsz)
664#define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
665 decode_destroy_session_maxsz)
Andy Adamsonfc01cea2009-04-01 09:22:36 -0400666#define NFS4_enc_sequence_sz \
667 (compound_decode_hdr_maxsz + \
668 encode_sequence_maxsz)
669#define NFS4_dec_sequence_sz \
670 (compound_decode_hdr_maxsz + \
671 decode_sequence_maxsz)
Andy Adamson2050f0c2009-04-01 09:22:30 -0400672#define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
673 encode_sequence_maxsz + \
674 encode_putrootfh_maxsz + \
675 encode_fsinfo_maxsz)
676#define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
677 decode_sequence_maxsz + \
678 decode_putrootfh_maxsz + \
679 decode_fsinfo_maxsz)
Benny Halevy99fe60d2009-04-01 09:22:29 -0400680#endif /* CONFIG_NFS_V4_1 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681
Trond Myklebustbca79472009-03-11 14:10:26 -0400682static const umode_t nfs_type2fmt[] = {
683 [NF4BAD] = 0,
684 [NF4REG] = S_IFREG,
685 [NF4DIR] = S_IFDIR,
686 [NF4BLK] = S_IFBLK,
687 [NF4CHR] = S_IFCHR,
688 [NF4LNK] = S_IFLNK,
689 [NF4SOCK] = S_IFSOCK,
690 [NF4FIFO] = S_IFIFO,
691 [NF4ATTRDIR] = 0,
692 [NF4NAMEDATTR] = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700693};
694
695struct compound_hdr {
696 int32_t status;
697 uint32_t nops;
Andy Adamsond0179312008-12-23 16:06:17 -0500698 __be32 * nops_p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699 uint32_t taglen;
700 char * tag;
Benny Halevy0c4e8c12009-04-01 09:22:07 -0400701 uint32_t replen; /* expected reply words */
Benny Halevy66cc0422009-04-01 09:22:10 -0400702 u32 minorversion;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703};
704
Benny Halevy13c65ce2009-08-14 17:19:25 +0300705static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes)
706{
707 __be32 *p = xdr_reserve_space(xdr, nbytes);
708 BUG_ON(!p);
709 return p;
710}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700711
712static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
713{
Al Viro8687b632006-10-19 23:28:48 -0700714 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715
716 p = xdr_reserve_space(xdr, 4 + len);
717 BUG_ON(p == NULL);
718 xdr_encode_opaque(p, str, len);
719}
720
Benny Halevy0c4e8c12009-04-01 09:22:07 -0400721static void encode_compound_hdr(struct xdr_stream *xdr,
722 struct rpc_rqst *req,
723 struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700724{
Al Viro8687b632006-10-19 23:28:48 -0700725 __be32 *p;
Benny Halevy0c4e8c12009-04-01 09:22:07 -0400726 struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
727
728 /* initialize running count of expected bytes in reply.
729 * NOTE: the replied tag SHOULD be the same is the one sent,
730 * but this is not required as a MUST for the server to do so. */
731 hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732
733 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag);
734 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN);
Benny Halevy811652b2009-08-14 17:19:34 +0300735 p = reserve_space(xdr, 4 + hdr->taglen + 8);
736 p = xdr_encode_opaque(p, hdr->tag, hdr->taglen);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300737 *p++ = cpu_to_be32(hdr->minorversion);
Andy Adamsond0179312008-12-23 16:06:17 -0500738 hdr->nops_p = p;
Benny Halevy34558512009-08-14 17:19:30 +0300739 *p = cpu_to_be32(hdr->nops);
Andy Adamsond0179312008-12-23 16:06:17 -0500740}
741
742static void encode_nops(struct compound_hdr *hdr)
743{
Andy Adamsonfc931582009-04-01 09:22:31 -0400744 BUG_ON(hdr->nops > NFS4_MAX_OPS);
Andy Adamsond0179312008-12-23 16:06:17 -0500745 *hdr->nops_p = htonl(hdr->nops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746}
747
748static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
749{
Al Viro8687b632006-10-19 23:28:48 -0700750 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700751
752 p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE);
753 BUG_ON(p == NULL);
754 xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE);
755}
756
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500757static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758{
759 char owner_name[IDMAP_NAMESZ];
760 char owner_group[IDMAP_NAMESZ];
761 int owner_namelen = 0;
762 int owner_grouplen = 0;
Al Viro8687b632006-10-19 23:28:48 -0700763 __be32 *p;
764 __be32 *q;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700765 int len;
766 uint32_t bmval0 = 0;
767 uint32_t bmval1 = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700768
769 /*
770 * We reserve enough space to write the entire attribute buffer at once.
771 * In the worst-case, this would be
772 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
773 * = 36 bytes, plus any contribution from variable-length fields
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000774 * such as owner/group.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700775 */
776 len = 16;
777
778 /* Sigh */
779 if (iap->ia_valid & ATTR_SIZE)
780 len += 8;
781 if (iap->ia_valid & ATTR_MODE)
782 len += 4;
783 if (iap->ia_valid & ATTR_UID) {
David Howells7539bba2006-08-22 20:06:09 -0400784 owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700785 if (owner_namelen < 0) {
Chuck Leverfe82a182007-09-11 18:01:10 -0400786 dprintk("nfs: couldn't resolve uid %d to string\n",
787 iap->ia_uid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700788 /* XXX */
789 strcpy(owner_name, "nobody");
790 owner_namelen = sizeof("nobody") - 1;
791 /* goto out; */
792 }
793 len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
794 }
795 if (iap->ia_valid & ATTR_GID) {
David Howells7539bba2006-08-22 20:06:09 -0400796 owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797 if (owner_grouplen < 0) {
Chuck Leverfe82a182007-09-11 18:01:10 -0400798 dprintk("nfs: couldn't resolve gid %d to string\n",
799 iap->ia_gid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800 strcpy(owner_group, "nobody");
801 owner_grouplen = sizeof("nobody") - 1;
802 /* goto out; */
803 }
804 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
805 }
806 if (iap->ia_valid & ATTR_ATIME_SET)
807 len += 16;
808 else if (iap->ia_valid & ATTR_ATIME)
809 len += 4;
810 if (iap->ia_valid & ATTR_MTIME_SET)
811 len += 16;
812 else if (iap->ia_valid & ATTR_MTIME)
813 len += 4;
Benny Halevy13c65ce2009-08-14 17:19:25 +0300814 p = reserve_space(xdr, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700815
816 /*
817 * We write the bitmap length now, but leave the bitmap and the attribute
818 * buffer length to be backfilled at the end of this routine.
819 */
Benny Halevye75bc1c2009-08-14 17:18:54 +0300820 *p++ = cpu_to_be32(2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700821 q = p;
822 p += 3;
823
824 if (iap->ia_valid & ATTR_SIZE) {
825 bmval0 |= FATTR4_WORD0_SIZE;
Benny Halevyb95be5a2009-08-14 17:19:01 +0300826 p = xdr_encode_hyper(p, iap->ia_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827 }
828 if (iap->ia_valid & ATTR_MODE) {
829 bmval1 |= FATTR4_WORD1_MODE;
Benny Halevye75bc1c2009-08-14 17:18:54 +0300830 *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700831 }
832 if (iap->ia_valid & ATTR_UID) {
833 bmval1 |= FATTR4_WORD1_OWNER;
Benny Halevy811652b2009-08-14 17:19:34 +0300834 p = xdr_encode_opaque(p, owner_name, owner_namelen);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700835 }
836 if (iap->ia_valid & ATTR_GID) {
837 bmval1 |= FATTR4_WORD1_OWNER_GROUP;
Benny Halevy811652b2009-08-14 17:19:34 +0300838 p = xdr_encode_opaque(p, owner_group, owner_grouplen);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839 }
840 if (iap->ia_valid & ATTR_ATIME_SET) {
841 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
Benny Halevye75bc1c2009-08-14 17:18:54 +0300842 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
843 *p++ = cpu_to_be32(0);
844 *p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
845 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700846 }
847 else if (iap->ia_valid & ATTR_ATIME) {
848 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
Benny Halevye75bc1c2009-08-14 17:18:54 +0300849 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850 }
851 if (iap->ia_valid & ATTR_MTIME_SET) {
852 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
Benny Halevye75bc1c2009-08-14 17:18:54 +0300853 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
854 *p++ = cpu_to_be32(0);
855 *p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
856 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857 }
858 else if (iap->ia_valid & ATTR_MTIME) {
859 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
Benny Halevye75bc1c2009-08-14 17:18:54 +0300860 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861 }
Andy Adamson6c0195a2008-12-23 16:06:15 -0500862
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863 /*
864 * Now we backfill the bitmap and the attribute buffer length.
865 */
866 if (len != ((char *)p - (char *)q) + 4) {
Chuck Leverfe82a182007-09-11 18:01:10 -0400867 printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700868 len, ((char *)p - (char *)q) + 4);
869 BUG();
870 }
871 len = (char *)p - (char *)q - 12;
872 *q++ = htonl(bmval0);
873 *q++ = htonl(bmval1);
Benny Halevy34558512009-08-14 17:19:30 +0300874 *q = htonl(len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875
Linus Torvalds1da177e2005-04-16 15:20:36 -0700876/* out: */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877}
878
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500879static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880{
Al Viro8687b632006-10-19 23:28:48 -0700881 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882
Benny Halevy13c65ce2009-08-14 17:19:25 +0300883 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300884 *p++ = cpu_to_be32(OP_ACCESS);
Benny Halevy34558512009-08-14 17:19:30 +0300885 *p = cpu_to_be32(access);
Andy Adamsond0179312008-12-23 16:06:17 -0500886 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -0400887 hdr->replen += decode_access_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700888}
889
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500890static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700891{
Al Viro8687b632006-10-19 23:28:48 -0700892 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700893
Benny Halevy13c65ce2009-08-14 17:19:25 +0300894 p = reserve_space(xdr, 8+NFS4_STATEID_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300895 *p++ = cpu_to_be32(OP_CLOSE);
896 *p++ = cpu_to_be32(arg->seqid->sequence->counter);
Benny Halevy34558512009-08-14 17:19:30 +0300897 xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -0500898 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -0400899 hdr->replen += decode_close_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900}
901
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500902static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700903{
Al Viro8687b632006-10-19 23:28:48 -0700904 __be32 *p;
Andy Adamson6c0195a2008-12-23 16:06:15 -0500905
Benny Halevy13c65ce2009-08-14 17:19:25 +0300906 p = reserve_space(xdr, 16);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300907 *p++ = cpu_to_be32(OP_COMMIT);
Benny Halevyb95be5a2009-08-14 17:19:01 +0300908 p = xdr_encode_hyper(p, args->offset);
Benny Halevy34558512009-08-14 17:19:30 +0300909 *p = cpu_to_be32(args->count);
Andy Adamsond0179312008-12-23 16:06:17 -0500910 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -0400911 hdr->replen += decode_commit_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912}
913
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500914static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700915{
Al Viro8687b632006-10-19 23:28:48 -0700916 __be32 *p;
Andy Adamson6c0195a2008-12-23 16:06:15 -0500917
Benny Halevy13c65ce2009-08-14 17:19:25 +0300918 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300919 *p++ = cpu_to_be32(OP_CREATE);
Benny Halevy34558512009-08-14 17:19:30 +0300920 *p = cpu_to_be32(create->ftype);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700921
922 switch (create->ftype) {
923 case NF4LNK:
Benny Halevy13c65ce2009-08-14 17:19:25 +0300924 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +0300925 *p = cpu_to_be32(create->u.symlink.len);
Chuck Lever94a6d752006-08-22 20:06:23 -0400926 xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700927 break;
928
929 case NF4BLK: case NF4CHR:
Benny Halevy13c65ce2009-08-14 17:19:25 +0300930 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300931 *p++ = cpu_to_be32(create->u.device.specdata1);
Benny Halevy34558512009-08-14 17:19:30 +0300932 *p = cpu_to_be32(create->u.device.specdata2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700933 break;
934
935 default:
936 break;
937 }
938
Benny Halevy811652b2009-08-14 17:19:34 +0300939 encode_string(xdr, create->name->len, create->name->name);
Andy Adamsond0179312008-12-23 16:06:17 -0500940 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -0400941 hdr->replen += decode_create_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700942
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500943 encode_attrs(xdr, create->attrs, create->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944}
945
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500946static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947{
Andy Adamson05d564f2008-12-23 16:06:15 -0500948 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949
Benny Halevy13c65ce2009-08-14 17:19:25 +0300950 p = reserve_space(xdr, 12);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300951 *p++ = cpu_to_be32(OP_GETATTR);
952 *p++ = cpu_to_be32(1);
Benny Halevy34558512009-08-14 17:19:30 +0300953 *p = cpu_to_be32(bitmap);
Andy Adamsond0179312008-12-23 16:06:17 -0500954 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -0400955 hdr->replen += decode_getattr_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700956}
957
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500958static 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 -0700959{
Andy Adamson05d564f2008-12-23 16:06:15 -0500960 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961
Benny Halevy13c65ce2009-08-14 17:19:25 +0300962 p = reserve_space(xdr, 16);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300963 *p++ = cpu_to_be32(OP_GETATTR);
964 *p++ = cpu_to_be32(2);
965 *p++ = cpu_to_be32(bm0);
Benny Halevy34558512009-08-14 17:19:30 +0300966 *p = cpu_to_be32(bm1);
Andy Adamsond0179312008-12-23 16:06:17 -0500967 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -0400968 hdr->replen += decode_getattr_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700969}
970
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500971static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700972{
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500973 encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0],
974 bitmask[1] & nfs4_fattr_bitmap[1], hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700975}
976
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500977static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978{
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500979 encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0],
980 bitmask[1] & nfs4_fsinfo_bitmap[1], hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700981}
982
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500983static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
Manoj Naik830b8e32006-06-09 09:34:25 -0400984{
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500985 encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0],
986 bitmask[1] & nfs4_fs_locations_bitmap[1], hdr);
Manoj Naik830b8e32006-06-09 09:34:25 -0400987}
988
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500989static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700990{
Al Viro8687b632006-10-19 23:28:48 -0700991 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700992
Benny Halevy13c65ce2009-08-14 17:19:25 +0300993 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +0300994 *p = cpu_to_be32(OP_GETFH);
Andy Adamsond0179312008-12-23 16:06:17 -0500995 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -0400996 hdr->replen += decode_getfh_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997}
998
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500999static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000{
Al Viro8687b632006-10-19 23:28:48 -07001001 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001002
Benny Halevy13c65ce2009-08-14 17:19:25 +03001003 p = reserve_space(xdr, 8 + name->len);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001004 *p++ = cpu_to_be32(OP_LINK);
Benny Halevy811652b2009-08-14 17:19:34 +03001005 xdr_encode_opaque(p, name->name, name->len);
Andy Adamsond0179312008-12-23 16:06:17 -05001006 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001007 hdr->replen += decode_link_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001008}
1009
Trond Myklebust911d1aa2006-01-03 09:55:16 +01001010static inline int nfs4_lock_type(struct file_lock *fl, int block)
1011{
1012 if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK)
1013 return block ? NFS4_READW_LT : NFS4_READ_LT;
1014 return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT;
1015}
1016
1017static inline uint64_t nfs4_lock_length(struct file_lock *fl)
1018{
1019 if (fl->fl_end == OFFSET_MAX)
1020 return ~(uint64_t)0;
1021 return fl->fl_end - fl->fl_start + 1;
1022}
1023
Linus Torvalds1da177e2005-04-16 15:20:36 -07001024/*
1025 * opcode,type,reclaim,offset,length,new_lock_owner = 32
1026 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
1027 */
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001028static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001029{
Al Viro8687b632006-10-19 23:28:48 -07001030 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031
Benny Halevy13c65ce2009-08-14 17:19:25 +03001032 p = reserve_space(xdr, 32);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001033 *p++ = cpu_to_be32(OP_LOCK);
1034 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block));
1035 *p++ = cpu_to_be32(args->reclaim);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001036 p = xdr_encode_hyper(p, args->fl->fl_start);
1037 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
Benny Halevy34558512009-08-14 17:19:30 +03001038 *p = cpu_to_be32(args->new_lock_owner);
Trond Myklebust911d1aa2006-01-03 09:55:16 +01001039 if (args->new_lock_owner){
Benny Halevy13c65ce2009-08-14 17:19:25 +03001040 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+32);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001041 *p++ = cpu_to_be32(args->open_seqid->sequence->counter);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001042 p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001043 *p++ = cpu_to_be32(args->lock_seqid->sequence->counter);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001044 p = xdr_encode_hyper(p, args->lock_owner.clientid);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001045 *p++ = cpu_to_be32(16);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001046 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
Benny Halevy34558512009-08-14 17:19:30 +03001047 xdr_encode_hyper(p, args->lock_owner.id);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048 }
1049 else {
Benny Halevy13c65ce2009-08-14 17:19:25 +03001050 p = reserve_space(xdr, NFS4_STATEID_SIZE+4);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001051 p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE);
Benny Halevy34558512009-08-14 17:19:30 +03001052 *p = cpu_to_be32(args->lock_seqid->sequence->counter);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053 }
Andy Adamsond0179312008-12-23 16:06:17 -05001054 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001055 hdr->replen += decode_lock_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001056}
1057
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001058static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001059{
Al Viro8687b632006-10-19 23:28:48 -07001060 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061
Benny Halevy13c65ce2009-08-14 17:19:25 +03001062 p = reserve_space(xdr, 52);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001063 *p++ = cpu_to_be32(OP_LOCKT);
1064 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
Benny Halevyb95be5a2009-08-14 17:19:01 +03001065 p = xdr_encode_hyper(p, args->fl->fl_start);
1066 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1067 p = xdr_encode_hyper(p, args->lock_owner.clientid);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001068 *p++ = cpu_to_be32(16);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001069 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
Benny Halevy34558512009-08-14 17:19:30 +03001070 xdr_encode_hyper(p, args->lock_owner.id);
Andy Adamsond0179312008-12-23 16:06:17 -05001071 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001072 hdr->replen += decode_lockt_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001073}
1074
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001075static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076{
Al Viro8687b632006-10-19 23:28:48 -07001077 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078
Benny Halevy13c65ce2009-08-14 17:19:25 +03001079 p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001080 *p++ = cpu_to_be32(OP_LOCKU);
1081 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1082 *p++ = cpu_to_be32(args->seqid->sequence->counter);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001083 p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001084 p = xdr_encode_hyper(p, args->fl->fl_start);
Benny Halevy34558512009-08-14 17:19:30 +03001085 xdr_encode_hyper(p, nfs4_lock_length(args->fl));
Andy Adamsond0179312008-12-23 16:06:17 -05001086 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001087 hdr->replen += decode_locku_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001088}
1089
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001090static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001091{
1092 int len = name->len;
Al Viro8687b632006-10-19 23:28:48 -07001093 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001094
Benny Halevy13c65ce2009-08-14 17:19:25 +03001095 p = reserve_space(xdr, 8 + len);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001096 *p++ = cpu_to_be32(OP_LOOKUP);
Benny Halevy811652b2009-08-14 17:19:34 +03001097 xdr_encode_opaque(p, name->name, len);
Andy Adamsond0179312008-12-23 16:06:17 -05001098 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001099 hdr->replen += decode_lookup_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001100}
1101
Trond Myklebustdc0b0272008-12-23 15:21:56 -05001102static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001103{
Al Viro8687b632006-10-19 23:28:48 -07001104 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001105
Benny Halevy13c65ce2009-08-14 17:19:25 +03001106 p = reserve_space(xdr, 8);
Trond Myklebustdc0b0272008-12-23 15:21:56 -05001107 switch (fmode & (FMODE_READ|FMODE_WRITE)) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001108 case FMODE_READ:
Benny Halevye75bc1c2009-08-14 17:18:54 +03001109 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ);
Andy Adamson05d564f2008-12-23 16:06:15 -05001110 break;
1111 case FMODE_WRITE:
Benny Halevye75bc1c2009-08-14 17:18:54 +03001112 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001113 break;
1114 case FMODE_READ|FMODE_WRITE:
Benny Halevye75bc1c2009-08-14 17:18:54 +03001115 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH);
Andy Adamson05d564f2008-12-23 16:06:15 -05001116 break;
1117 default:
Benny Halevye75bc1c2009-08-14 17:18:54 +03001118 *p++ = cpu_to_be32(0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119 }
Benny Halevy34558512009-08-14 17:19:30 +03001120 *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121}
1122
1123static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1124{
Al Viro8687b632006-10-19 23:28:48 -07001125 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126 /*
1127 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1128 * owner 4 = 32
1129 */
Benny Halevy13c65ce2009-08-14 17:19:25 +03001130 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001131 *p++ = cpu_to_be32(OP_OPEN);
Benny Halevy34558512009-08-14 17:19:30 +03001132 *p = cpu_to_be32(arg->seqid->sequence->counter);
Trond Myklebustdc0b0272008-12-23 15:21:56 -05001133 encode_share_access(xdr, arg->fmode);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001134 p = reserve_space(xdr, 28);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001135 p = xdr_encode_hyper(p, arg->clientid);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001136 *p++ = cpu_to_be32(16);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001137 p = xdr_encode_opaque_fixed(p, "open id:", 8);
Benny Halevy34558512009-08-14 17:19:30 +03001138 xdr_encode_hyper(p, arg->id);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001139}
1140
1141static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1142{
Al Viro8687b632006-10-19 23:28:48 -07001143 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001144
Benny Halevy13c65ce2009-08-14 17:19:25 +03001145 p = reserve_space(xdr, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001146 switch(arg->open_flags & O_EXCL) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001147 case 0:
Benny Halevy34558512009-08-14 17:19:30 +03001148 *p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
Andy Adamson05d564f2008-12-23 16:06:15 -05001149 encode_attrs(xdr, arg->u.attrs, arg->server);
1150 break;
1151 default:
Benny Halevy34558512009-08-14 17:19:30 +03001152 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001153 encode_nfs4_verifier(xdr, &arg->u.verifier);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001154 }
1155}
1156
1157static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1158{
Al Viro8687b632006-10-19 23:28:48 -07001159 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001160
Benny Halevy13c65ce2009-08-14 17:19:25 +03001161 p = reserve_space(xdr, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001162 switch (arg->open_flags & O_CREAT) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001163 case 0:
Benny Halevy34558512009-08-14 17:19:30 +03001164 *p = cpu_to_be32(NFS4_OPEN_NOCREATE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001165 break;
1166 default:
1167 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
Benny Halevy34558512009-08-14 17:19:30 +03001168 *p = cpu_to_be32(NFS4_OPEN_CREATE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001169 encode_createmode(xdr, arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001170 }
1171}
1172
Trond Myklebustbd7bf9d2008-12-23 15:21:53 -05001173static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001174{
Al Viro8687b632006-10-19 23:28:48 -07001175 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001176
Benny Halevy13c65ce2009-08-14 17:19:25 +03001177 p = reserve_space(xdr, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001178 switch (delegation_type) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001179 case 0:
Benny Halevy34558512009-08-14 17:19:30 +03001180 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001181 break;
1182 case FMODE_READ:
Benny Halevy34558512009-08-14 17:19:30 +03001183 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ);
Andy Adamson05d564f2008-12-23 16:06:15 -05001184 break;
1185 case FMODE_WRITE|FMODE_READ:
Benny Halevy34558512009-08-14 17:19:30 +03001186 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001187 break;
1188 default:
1189 BUG();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001190 }
1191}
1192
1193static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
1194{
Al Viro8687b632006-10-19 23:28:48 -07001195 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001196
Benny Halevy13c65ce2009-08-14 17:19:25 +03001197 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001198 *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001199 encode_string(xdr, name->len, name->name);
1200}
1201
Trond Myklebustbd7bf9d2008-12-23 15:21:53 -05001202static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001203{
Al Viro8687b632006-10-19 23:28:48 -07001204 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001205
Benny Halevy13c65ce2009-08-14 17:19:25 +03001206 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001207 *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001208 encode_delegation_type(xdr, type);
1209}
1210
1211static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
1212{
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+NFS4_STATEID_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001216 *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
Benny Halevy34558512009-08-14 17:19:30 +03001217 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001218 encode_string(xdr, name->len, name->name);
1219}
1220
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001221static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001222{
1223 encode_openhdr(xdr, arg);
1224 encode_opentype(xdr, arg);
1225 switch (arg->claim) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001226 case NFS4_OPEN_CLAIM_NULL:
1227 encode_claim_null(xdr, arg->name);
1228 break;
1229 case NFS4_OPEN_CLAIM_PREVIOUS:
1230 encode_claim_previous(xdr, arg->u.delegation_type);
1231 break;
1232 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
1233 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
1234 break;
1235 default:
1236 BUG();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001237 }
Andy Adamsond0179312008-12-23 16:06:17 -05001238 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001239 hdr->replen += decode_open_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001240}
1241
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001242static 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 -07001243{
Al Viro8687b632006-10-19 23:28:48 -07001244 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001245
Benny Halevy13c65ce2009-08-14 17:19:25 +03001246 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001247 *p++ = cpu_to_be32(OP_OPEN_CONFIRM);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001248 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
Benny Halevy34558512009-08-14 17:19:30 +03001249 *p = cpu_to_be32(arg->seqid->sequence->counter);
Andy Adamsond0179312008-12-23 16:06:17 -05001250 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001251 hdr->replen += decode_open_confirm_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252}
1253
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001254static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001255{
Al Viro8687b632006-10-19 23:28:48 -07001256 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001257
Benny Halevy13c65ce2009-08-14 17:19:25 +03001258 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001259 *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001260 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
Benny Halevy34558512009-08-14 17:19:30 +03001261 *p = cpu_to_be32(arg->seqid->sequence->counter);
Trond Myklebustdc0b0272008-12-23 15:21:56 -05001262 encode_share_access(xdr, arg->fmode);
Andy Adamsond0179312008-12-23 16:06:17 -05001263 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001264 hdr->replen += decode_open_downgrade_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001265}
1266
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001267static void
Andy Adamsond0179312008-12-23 16:06:17 -05001268encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001269{
1270 int len = fh->size;
Al Viro8687b632006-10-19 23:28:48 -07001271 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001272
Benny Halevy13c65ce2009-08-14 17:19:25 +03001273 p = reserve_space(xdr, 8 + len);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001274 *p++ = cpu_to_be32(OP_PUTFH);
Benny Halevy811652b2009-08-14 17:19:34 +03001275 xdr_encode_opaque(p, fh->data, len);
Andy Adamsond0179312008-12-23 16:06:17 -05001276 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001277 hdr->replen += decode_putfh_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001278}
1279
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001280static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001281{
Andy Adamson05d564f2008-12-23 16:06:15 -05001282 __be32 *p;
Andy Adamson6c0195a2008-12-23 16:06:15 -05001283
Benny Halevy13c65ce2009-08-14 17:19:25 +03001284 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001285 *p = cpu_to_be32(OP_PUTROOTFH);
Andy Adamsond0179312008-12-23 16:06:17 -05001286 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001287 hdr->replen += decode_putrootfh_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001288}
1289
1290static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx)
1291{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001292 nfs4_stateid stateid;
Al Viro8687b632006-10-19 23:28:48 -07001293 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001294
Benny Halevy13c65ce2009-08-14 17:19:25 +03001295 p = reserve_space(xdr, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001296 if (ctx->state != NULL) {
1297 nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner);
Benny Halevy34558512009-08-14 17:19:30 +03001298 xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001299 } else
Benny Halevy34558512009-08-14 17:19:30 +03001300 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001301}
1302
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001303static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001304{
Al Viro8687b632006-10-19 23:28:48 -07001305 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001306
Benny Halevy13c65ce2009-08-14 17:19:25 +03001307 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001308 *p = cpu_to_be32(OP_READ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001309
1310 encode_stateid(xdr, args->context);
1311
Benny Halevy13c65ce2009-08-14 17:19:25 +03001312 p = reserve_space(xdr, 12);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001313 p = xdr_encode_hyper(p, args->offset);
Benny Halevy34558512009-08-14 17:19:30 +03001314 *p = cpu_to_be32(args->count);
Andy Adamsond0179312008-12-23 16:06:17 -05001315 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001316 hdr->replen += decode_read_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001317}
1318
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001319static 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 -07001320{
Manoj Naik97d312d2005-06-22 17:16:39 +00001321 uint32_t attrs[2] = {
1322 FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID,
1323 FATTR4_WORD1_MOUNTED_ON_FILEID,
1324 };
Al Viro8687b632006-10-19 23:28:48 -07001325 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001326
Benny Halevy13c65ce2009-08-14 17:19:25 +03001327 p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001328 *p++ = cpu_to_be32(OP_READDIR);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001329 p = xdr_encode_hyper(p, readdir->cookie);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001330 p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001331 *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */
1332 *p++ = cpu_to_be32(readdir->count);
1333 *p++ = cpu_to_be32(2);
Manoj Naik97d312d2005-06-22 17:16:39 +00001334 /* Switch to mounted_on_fileid if the server supports it */
1335 if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)
1336 attrs[0] &= ~FATTR4_WORD0_FILEID;
1337 else
1338 attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
Benny Halevye75bc1c2009-08-14 17:18:54 +03001339 *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]);
Benny Halevy34558512009-08-14 17:19:30 +03001340 *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]);
Andy Adamsond0179312008-12-23 16:06:17 -05001341 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001342 hdr->replen += decode_readdir_maxsz;
Fred Isaman44109242008-04-02 15:21:15 +03001343 dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n",
1344 __func__,
Trond Myklebusteadf4592005-06-22 17:16:39 +00001345 (unsigned long long)readdir->cookie,
1346 ((u32 *)readdir->verifier.data)[0],
1347 ((u32 *)readdir->verifier.data)[1],
1348 attrs[0] & readdir->bitmask[0],
1349 attrs[1] & readdir->bitmask[1]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001350}
1351
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001352static 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 -07001353{
Al Viro8687b632006-10-19 23:28:48 -07001354 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355
Benny Halevy13c65ce2009-08-14 17:19:25 +03001356 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001357 *p = cpu_to_be32(OP_READLINK);
Andy Adamsond0179312008-12-23 16:06:17 -05001358 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001359 hdr->replen += decode_readlink_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001360}
1361
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001362static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001363{
Al Viro8687b632006-10-19 23:28:48 -07001364 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365
Benny Halevy13c65ce2009-08-14 17:19:25 +03001366 p = reserve_space(xdr, 8 + name->len);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001367 *p++ = cpu_to_be32(OP_REMOVE);
Benny Halevy811652b2009-08-14 17:19:34 +03001368 xdr_encode_opaque(p, name->name, name->len);
Andy Adamsond0179312008-12-23 16:06:17 -05001369 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001370 hdr->replen += decode_remove_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371}
1372
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001373static 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 -07001374{
Al Viro8687b632006-10-19 23:28:48 -07001375 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001376
Benny Halevy811652b2009-08-14 17:19:34 +03001377 p = reserve_space(xdr, 4);
1378 *p = cpu_to_be32(OP_RENAME);
1379 encode_string(xdr, oldname->len, oldname->name);
1380 encode_string(xdr, newname->len, newname->name);
Andy Adamsond0179312008-12-23 16:06:17 -05001381 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001382 hdr->replen += decode_rename_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383}
1384
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001385static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001386{
Al Viro8687b632006-10-19 23:28:48 -07001387 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001388
Benny Halevy13c65ce2009-08-14 17:19:25 +03001389 p = reserve_space(xdr, 12);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001390 *p++ = cpu_to_be32(OP_RENEW);
Benny Halevy34558512009-08-14 17:19:30 +03001391 xdr_encode_hyper(p, client_stateid->cl_clientid);
Andy Adamsond0179312008-12-23 16:06:17 -05001392 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001393 hdr->replen += decode_renew_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394}
1395
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001396static void
Andy Adamsond0179312008-12-23 16:06:17 -05001397encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04001398{
Al Viro8687b632006-10-19 23:28:48 -07001399 __be32 *p;
Trond Myklebust56ae19f2005-10-27 22:12:40 -04001400
Benny Halevy13c65ce2009-08-14 17:19:25 +03001401 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001402 *p = cpu_to_be32(OP_RESTOREFH);
Andy Adamsond0179312008-12-23 16:06:17 -05001403 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001404 hdr->replen += decode_restorefh_maxsz;
Trond Myklebust56ae19f2005-10-27 22:12:40 -04001405}
1406
1407static int
Andy Adamsond0179312008-12-23 16:06:17 -05001408encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr)
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001409{
Al Viro8687b632006-10-19 23:28:48 -07001410 __be32 *p;
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001411
Benny Halevy13c65ce2009-08-14 17:19:25 +03001412 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001413 *p++ = cpu_to_be32(OP_SETATTR);
Benny Halevy34558512009-08-14 17:19:30 +03001414 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001415 p = reserve_space(xdr, 2*4);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001416 *p++ = cpu_to_be32(1);
Benny Halevy34558512009-08-14 17:19:30 +03001417 *p = cpu_to_be32(FATTR4_WORD0_ACL);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001418 if (arg->acl_len % 4)
1419 return -EINVAL;
Benny Halevy13c65ce2009-08-14 17:19:25 +03001420 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001421 *p = cpu_to_be32(arg->acl_len);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001422 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
Andy Adamsond0179312008-12-23 16:06:17 -05001423 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001424 hdr->replen += decode_setacl_maxsz;
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001425 return 0;
1426}
1427
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001428static void
Andy Adamsond0179312008-12-23 16:06:17 -05001429encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001430{
Al Viro8687b632006-10-19 23:28:48 -07001431 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001432
Benny Halevy13c65ce2009-08-14 17:19:25 +03001433 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001434 *p = cpu_to_be32(OP_SAVEFH);
Andy Adamsond0179312008-12-23 16:06:17 -05001435 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001436 hdr->replen += decode_savefh_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001437}
1438
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001439static 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 -07001440{
Al Viro8687b632006-10-19 23:28:48 -07001441 __be32 *p;
Andy Adamson6c0195a2008-12-23 16:06:15 -05001442
Benny Halevy13c65ce2009-08-14 17:19:25 +03001443 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001444 *p++ = cpu_to_be32(OP_SETATTR);
Benny Halevy34558512009-08-14 17:19:30 +03001445 xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -05001446 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001447 hdr->replen += decode_setattr_maxsz;
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001448 encode_attrs(xdr, arg->iap, server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001449}
1450
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001451static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001452{
Al Viro8687b632006-10-19 23:28:48 -07001453 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001454
Benny Halevy13c65ce2009-08-14 17:19:25 +03001455 p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001456 *p++ = cpu_to_be32(OP_SETCLIENTID);
Benny Halevy34558512009-08-14 17:19:30 +03001457 xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001458
1459 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001460 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001461 *p = cpu_to_be32(setclientid->sc_prog);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001462 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1463 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001464 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001465 *p = cpu_to_be32(setclientid->sc_cb_ident);
Andy Adamsond0179312008-12-23 16:06:17 -05001466 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001467 hdr->replen += decode_setclientid_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001468}
1469
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001470static 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 -07001471{
Andy Adamson05d564f2008-12-23 16:06:15 -05001472 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001473
Benny Halevy13c65ce2009-08-14 17:19:25 +03001474 p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001475 *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001476 p = xdr_encode_hyper(p, client_state->cl_clientid);
Benny Halevy34558512009-08-14 17:19:30 +03001477 xdr_encode_opaque_fixed(p, client_state->cl_confirm.data, NFS4_VERIFIER_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -05001478 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001479 hdr->replen += decode_setclientid_confirm_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480}
1481
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001482static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001483{
Al Viro8687b632006-10-19 23:28:48 -07001484 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001485
Benny Halevy13c65ce2009-08-14 17:19:25 +03001486 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001487 *p = cpu_to_be32(OP_WRITE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001488
1489 encode_stateid(xdr, args->context);
1490
Benny Halevy13c65ce2009-08-14 17:19:25 +03001491 p = reserve_space(xdr, 16);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001492 p = xdr_encode_hyper(p, args->offset);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001493 *p++ = cpu_to_be32(args->stable);
Benny Halevy34558512009-08-14 17:19:30 +03001494 *p = cpu_to_be32(args->count);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001495
1496 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
Andy Adamsond0179312008-12-23 16:06:17 -05001497 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001498 hdr->replen += decode_write_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001499}
1500
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001501static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502{
Al Viro8687b632006-10-19 23:28:48 -07001503 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001504
Benny Halevy13c65ce2009-08-14 17:19:25 +03001505 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001506
Benny Halevye75bc1c2009-08-14 17:18:54 +03001507 *p++ = cpu_to_be32(OP_DELEGRETURN);
Benny Halevy34558512009-08-14 17:19:30 +03001508 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -05001509 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001510 hdr->replen += decode_delegreturn_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001511}
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001512
Benny Halevy99fe60d2009-04-01 09:22:29 -04001513#if defined(CONFIG_NFS_V4_1)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001514/* NFSv4.1 operations */
Benny Halevy99fe60d2009-04-01 09:22:29 -04001515static void encode_exchange_id(struct xdr_stream *xdr,
1516 struct nfs41_exchange_id_args *args,
1517 struct compound_hdr *hdr)
1518{
1519 __be32 *p;
1520
Benny Halevy13c65ce2009-08-14 17:19:25 +03001521 p = reserve_space(xdr, 4 + sizeof(args->verifier->data));
Benny Halevye75bc1c2009-08-14 17:18:54 +03001522 *p++ = cpu_to_be32(OP_EXCHANGE_ID);
Benny Halevy34558512009-08-14 17:19:30 +03001523 xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data));
Benny Halevy99fe60d2009-04-01 09:22:29 -04001524
1525 encode_string(xdr, args->id_len, args->id);
1526
Benny Halevy13c65ce2009-08-14 17:19:25 +03001527 p = reserve_space(xdr, 12);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001528 *p++ = cpu_to_be32(args->flags);
1529 *p++ = cpu_to_be32(0); /* zero length state_protect4_a */
Benny Halevy34558512009-08-14 17:19:30 +03001530 *p = cpu_to_be32(0); /* zero length implementation id array */
Benny Halevy99fe60d2009-04-01 09:22:29 -04001531 hdr->nops++;
1532 hdr->replen += decode_exchange_id_maxsz;
1533}
Andy Adamsonfc931582009-04-01 09:22:31 -04001534
1535static void encode_create_session(struct xdr_stream *xdr,
1536 struct nfs41_create_session_args *args,
1537 struct compound_hdr *hdr)
1538{
1539 __be32 *p;
1540 char machine_name[NFS4_MAX_MACHINE_NAME_LEN];
1541 uint32_t len;
1542 struct nfs_client *clp = args->client;
1543
Andy Adamsonfc931582009-04-01 09:22:31 -04001544 len = scnprintf(machine_name, sizeof(machine_name), "%s",
1545 clp->cl_ipaddr);
Benny Halevy42edd692009-08-14 17:19:13 +03001546
Benny Halevy13c65ce2009-08-14 17:19:25 +03001547 p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001548 *p++ = cpu_to_be32(OP_CREATE_SESSION);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001549 p = xdr_encode_hyper(p, clp->cl_ex_clid);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001550 *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */
1551 *p++ = cpu_to_be32(args->flags); /*flags */
Andy Adamsonfc931582009-04-01 09:22:31 -04001552
Andy Adamsonfc931582009-04-01 09:22:31 -04001553 /* Fore Channel */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001554 *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */
1555 *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */
1556 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */
1557 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1558 *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */
1559 *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */
1560 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
Andy Adamsonfc931582009-04-01 09:22:31 -04001561
1562 /* Back Channel */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001563 *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */
1564 *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */
1565 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */
1566 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1567 *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */
1568 *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */
1569 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
Andy Adamsonfc931582009-04-01 09:22:31 -04001570
Benny Halevye75bc1c2009-08-14 17:18:54 +03001571 *p++ = cpu_to_be32(args->cb_program); /* cb_program */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001572 *p++ = cpu_to_be32(1);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001573 *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */
Andy Adamsonfc931582009-04-01 09:22:31 -04001574
1575 /* authsys_parms rfc1831 */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001576 *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */
Benny Halevy811652b2009-08-14 17:19:34 +03001577 p = xdr_encode_opaque(p, machine_name, len);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001578 *p++ = cpu_to_be32(0); /* UID */
1579 *p++ = cpu_to_be32(0); /* GID */
Benny Halevy34558512009-08-14 17:19:30 +03001580 *p = cpu_to_be32(0); /* No more gids */
Andy Adamsonfc931582009-04-01 09:22:31 -04001581 hdr->nops++;
1582 hdr->replen += decode_create_session_maxsz;
1583}
Andy Adamson0f3e66c2009-04-01 09:22:34 -04001584
1585static void encode_destroy_session(struct xdr_stream *xdr,
1586 struct nfs4_session *session,
1587 struct compound_hdr *hdr)
1588{
1589 __be32 *p;
Benny Halevy13c65ce2009-08-14 17:19:25 +03001590 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001591 *p++ = cpu_to_be32(OP_DESTROY_SESSION);
Benny Halevy34558512009-08-14 17:19:30 +03001592 xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04001593 hdr->nops++;
1594 hdr->replen += decode_destroy_session_maxsz;
1595}
Benny Halevy99fe60d2009-04-01 09:22:29 -04001596#endif /* CONFIG_NFS_V4_1 */
1597
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001598static void encode_sequence(struct xdr_stream *xdr,
1599 const struct nfs4_sequence_args *args,
1600 struct compound_hdr *hdr)
1601{
1602#if defined(CONFIG_NFS_V4_1)
1603 struct nfs4_session *session = args->sa_session;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001604 struct nfs4_slot_table *tp;
1605 struct nfs4_slot *slot;
1606 __be32 *p;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001607
1608 if (!session)
1609 return;
1610
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001611 tp = &session->fc_slot_table;
1612
1613 WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE);
1614 slot = tp->slots + args->sa_slotid;
1615
Benny Halevy13c65ce2009-08-14 17:19:25 +03001616 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001617 *p++ = cpu_to_be32(OP_SEQUENCE);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001618
1619 /*
1620 * Sessionid + seqid + slotid + max slotid + cache_this
1621 */
1622 dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
1623 "max_slotid=%d cache_this=%d\n",
1624 __func__,
1625 ((u32 *)session->sess_id.data)[0],
1626 ((u32 *)session->sess_id.data)[1],
1627 ((u32 *)session->sess_id.data)[2],
1628 ((u32 *)session->sess_id.data)[3],
1629 slot->seq_nr, args->sa_slotid,
1630 tp->highest_used_slotid, args->sa_cache_this);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001631 p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001632 *p++ = cpu_to_be32(slot->seq_nr);
1633 *p++ = cpu_to_be32(args->sa_slotid);
1634 *p++ = cpu_to_be32(tp->highest_used_slotid);
Benny Halevy34558512009-08-14 17:19:30 +03001635 *p = cpu_to_be32(args->sa_cache_this);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001636 hdr->nops++;
1637 hdr->replen += decode_sequence_maxsz;
1638#endif /* CONFIG_NFS_V4_1 */
1639}
1640
Linus Torvalds1da177e2005-04-16 15:20:36 -07001641/*
1642 * END OF "GENERIC" ENCODE ROUTINES.
1643 */
1644
Benny Halevy66cc0422009-04-01 09:22:10 -04001645static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
1646{
1647#if defined(CONFIG_NFS_V4_1)
1648 if (args->sa_session)
1649 return args->sa_session->clp->cl_minorversion;
1650#endif /* CONFIG_NFS_V4_1 */
1651 return 0;
1652}
1653
Linus Torvalds1da177e2005-04-16 15:20:36 -07001654/*
1655 * Encode an ACCESS request
1656 */
Al Viro8687b632006-10-19 23:28:48 -07001657static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001658{
1659 struct xdr_stream xdr;
1660 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001661 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001662 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001663
1664 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001665 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001666 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001667 encode_putfh(&xdr, args->fh, &hdr);
1668 encode_access(&xdr, args->access, &hdr);
1669 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001670 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001671 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001672}
1673
1674/*
1675 * Encode LOOKUP request
1676 */
Al Viro8687b632006-10-19 23:28:48 -07001677static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001678{
1679 struct xdr_stream xdr;
1680 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001681 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001682 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001683
1684 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001685 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001686 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001687 encode_putfh(&xdr, args->dir_fh, &hdr);
1688 encode_lookup(&xdr, args->name, &hdr);
1689 encode_getfh(&xdr, &hdr);
1690 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001691 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001692 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001693}
1694
1695/*
1696 * Encode LOOKUP_ROOT request
1697 */
Al Viro8687b632006-10-19 23:28:48 -07001698static 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 -07001699{
1700 struct xdr_stream xdr;
1701 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001702 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001703 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001704
1705 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001706 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001707 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001708 encode_putrootfh(&xdr, &hdr);
1709 encode_getfh(&xdr, &hdr);
1710 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001711 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001712 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001713}
1714
1715/*
1716 * Encode REMOVE request
1717 */
Trond Myklebust4fdc17b2007-07-14 15:39:57 -04001718static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719{
1720 struct xdr_stream xdr;
1721 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001722 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001723 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001724
1725 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001726 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001727 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001728 encode_putfh(&xdr, args->fh, &hdr);
1729 encode_remove(&xdr, &args->name, &hdr);
1730 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001731 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001732 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001733}
1734
1735/*
1736 * Encode RENAME request
1737 */
Al Viro8687b632006-10-19 23:28:48 -07001738static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001739{
1740 struct xdr_stream xdr;
1741 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001742 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001743 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001744
1745 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001746 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001747 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001748 encode_putfh(&xdr, args->old_dir, &hdr);
1749 encode_savefh(&xdr, &hdr);
1750 encode_putfh(&xdr, args->new_dir, &hdr);
1751 encode_rename(&xdr, args->old_name, args->new_name, &hdr);
1752 encode_getfattr(&xdr, args->bitmask, &hdr);
1753 encode_restorefh(&xdr, &hdr);
1754 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001755 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001756 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001757}
1758
1759/*
1760 * Encode LINK request
1761 */
Al Viro8687b632006-10-19 23:28:48 -07001762static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001763{
1764 struct xdr_stream xdr;
1765 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001766 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001767 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001768
1769 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001770 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001771 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001772 encode_putfh(&xdr, args->fh, &hdr);
1773 encode_savefh(&xdr, &hdr);
1774 encode_putfh(&xdr, args->dir_fh, &hdr);
1775 encode_link(&xdr, args->name, &hdr);
1776 encode_getfattr(&xdr, args->bitmask, &hdr);
1777 encode_restorefh(&xdr, &hdr);
1778 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001779 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001780 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001781}
1782
1783/*
1784 * Encode CREATE request
1785 */
Al Viro8687b632006-10-19 23:28:48 -07001786static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001787{
1788 struct xdr_stream xdr;
1789 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001790 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001791 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001792
1793 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001794 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001795 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001796 encode_putfh(&xdr, args->dir_fh, &hdr);
1797 encode_savefh(&xdr, &hdr);
1798 encode_create(&xdr, args, &hdr);
1799 encode_getfh(&xdr, &hdr);
1800 encode_getfattr(&xdr, args->bitmask, &hdr);
1801 encode_restorefh(&xdr, &hdr);
1802 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001803 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001804 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001805}
1806
1807/*
1808 * Encode SYMLINK request
1809 */
Al Viro8687b632006-10-19 23:28:48 -07001810static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001811{
1812 return nfs4_xdr_enc_create(req, p, args);
1813}
1814
1815/*
1816 * Encode GETATTR request
1817 */
Al Viro8687b632006-10-19 23:28:48 -07001818static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001819{
1820 struct xdr_stream xdr;
1821 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001822 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001823 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001824
1825 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001826 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001827 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001828 encode_putfh(&xdr, args->fh, &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 a CLOSE request
1836 */
Al Viro8687b632006-10-19 23:28:48 -07001837static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001838{
Andy Adamson05d564f2008-12-23 16:06:15 -05001839 struct xdr_stream xdr;
1840 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001841 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Andy Adamson05d564f2008-12-23 16:06:15 -05001842 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001843
Andy Adamson05d564f2008-12-23 16:06:15 -05001844 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->fh, &hdr);
1848 encode_close(&xdr, args, &hdr);
1849 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001850 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001851 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001852}
1853
1854/*
1855 * Encode an OPEN request
1856 */
Al Viro8687b632006-10-19 23:28:48 -07001857static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001858{
1859 struct xdr_stream xdr;
1860 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001861 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001862 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001863
1864 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001865 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001866 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001867 encode_putfh(&xdr, args->fh, &hdr);
1868 encode_savefh(&xdr, &hdr);
1869 encode_open(&xdr, args, &hdr);
1870 encode_getfh(&xdr, &hdr);
1871 encode_getfattr(&xdr, args->bitmask, &hdr);
1872 encode_restorefh(&xdr, &hdr);
1873 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001874 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001875 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001876}
1877
1878/*
1879 * Encode an OPEN_CONFIRM request
1880 */
Al Viro8687b632006-10-19 23:28:48 -07001881static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001882{
1883 struct xdr_stream xdr;
1884 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05001885 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001886 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001887
1888 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001889 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001890 encode_putfh(&xdr, args->fh, &hdr);
1891 encode_open_confirm(&xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001892 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001893 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001894}
1895
1896/*
1897 * Encode an OPEN request with no attributes.
1898 */
Al Viro8687b632006-10-19 23:28:48 -07001899static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001900{
1901 struct xdr_stream xdr;
1902 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001903 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001904 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001905
1906 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001907 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001908 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001909 encode_putfh(&xdr, args->fh, &hdr);
1910 encode_open(&xdr, args, &hdr);
1911 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001912 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001913 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001914}
1915
1916/*
1917 * Encode an OPEN_DOWNGRADE request
1918 */
Al Viro8687b632006-10-19 23:28:48 -07001919static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001920{
1921 struct xdr_stream xdr;
1922 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001923 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001924 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001925
1926 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001927 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001928 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001929 encode_putfh(&xdr, args->fh, &hdr);
1930 encode_open_downgrade(&xdr, args, &hdr);
1931 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001932 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001933 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001934}
1935
1936/*
1937 * Encode a LOCK request
1938 */
Al Viro8687b632006-10-19 23:28:48 -07001939static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001940{
1941 struct xdr_stream xdr;
1942 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001943 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001944 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001945
1946 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001947 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001948 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001949 encode_putfh(&xdr, args->fh, &hdr);
1950 encode_lock(&xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001951 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001952 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001953}
1954
1955/*
1956 * Encode a LOCKT request
1957 */
Al Viro8687b632006-10-19 23:28:48 -07001958static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001959{
1960 struct xdr_stream xdr;
1961 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001962 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001963 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001964
1965 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001966 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001967 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001968 encode_putfh(&xdr, args->fh, &hdr);
1969 encode_lockt(&xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001970 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001971 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001972}
1973
1974/*
1975 * Encode a LOCKU request
1976 */
Al Viro8687b632006-10-19 23:28:48 -07001977static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001978{
1979 struct xdr_stream xdr;
1980 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04001981 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001982 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001983
1984 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04001985 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001986 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001987 encode_putfh(&xdr, args->fh, &hdr);
1988 encode_locku(&xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05001989 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001990 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001991}
1992
1993/*
1994 * Encode a READLINK request
1995 */
Al Viro8687b632006-10-19 23:28:48 -07001996static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001997{
1998 struct xdr_stream xdr;
1999 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002000 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002001 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002002
2003 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002004 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002005 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002006 encode_putfh(&xdr, args->fh, &hdr);
2007 encode_readlink(&xdr, args, req, &hdr);
Trond Myklebuste3a535e2007-07-19 10:03:38 -04002008
Benny Halevy28f56692009-04-01 09:22:09 -04002009 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
Trond Myklebuste3a535e2007-07-19 10:03:38 -04002010 args->pgbase, args->pglen);
Andy Adamsond0179312008-12-23 16:06:17 -05002011 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002012 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002013}
2014
2015/*
2016 * Encode a READDIR request
2017 */
Al Viro8687b632006-10-19 23:28:48 -07002018static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002019{
2020 struct xdr_stream xdr;
2021 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002022 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002023 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002024
2025 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002026 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002027 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002028 encode_putfh(&xdr, args->fh, &hdr);
2029 encode_readdir(&xdr, args, req, &hdr);
Trond Myklebustd6ac02d2007-07-19 10:03:37 -04002030
Benny Halevy28f56692009-04-01 09:22:09 -04002031 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
Trond Myklebustd6ac02d2007-07-19 10:03:37 -04002032 args->pgbase, args->count);
2033 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
Benny Halevy28f56692009-04-01 09:22:09 -04002034 __func__, hdr.replen << 2, args->pages,
Trond Myklebustd6ac02d2007-07-19 10:03:37 -04002035 args->pgbase, args->count);
Andy Adamsond0179312008-12-23 16:06:17 -05002036 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002037 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002038}
2039
2040/*
2041 * Encode a READ request
2042 */
Al Viro8687b632006-10-19 23:28:48 -07002043static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002044{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002045 struct xdr_stream xdr;
2046 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002047 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002048 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002049
2050 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002051 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002052 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002053 encode_putfh(&xdr, args->fh, &hdr);
2054 encode_read(&xdr, args, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002055
Benny Halevy28f56692009-04-01 09:22:09 -04002056 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002057 args->pages, args->pgbase, args->count);
\"Talpey, Thomas\4f22ccc2007-09-10 13:44:58 -04002058 req->rq_rcv_buf.flags |= XDRBUF_READ;
Andy Adamsond0179312008-12-23 16:06:17 -05002059 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002060 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002061}
2062
2063/*
2064 * Encode an SETATTR request
2065 */
Al Viro8687b632006-10-19 23:28:48 -07002066static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002067{
Andy Adamson05d564f2008-12-23 16:06:15 -05002068 struct xdr_stream xdr;
2069 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002070 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Andy Adamson05d564f2008-12-23 16:06:15 -05002071 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002072
Andy Adamson05d564f2008-12-23 16:06:15 -05002073 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002074 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002075 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002076 encode_putfh(&xdr, args->fh, &hdr);
2077 encode_setattr(&xdr, args, args->server, &hdr);
2078 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002079 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002080 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002081}
2082
2083/*
J. Bruce Fields029d1052005-06-22 17:16:22 +00002084 * Encode a GETACL request
2085 */
2086static int
Al Viro8687b632006-10-19 23:28:48 -07002087nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p,
J. Bruce Fields029d1052005-06-22 17:16:22 +00002088 struct nfs_getaclargs *args)
2089{
2090 struct xdr_stream xdr;
J. Bruce Fields029d1052005-06-22 17:16:22 +00002091 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002092 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
J. Bruce Fields029d1052005-06-22 17:16:22 +00002093 };
Benny Halevy28f56692009-04-01 09:22:09 -04002094 uint32_t replen;
J. Bruce Fields029d1052005-06-22 17:16:22 +00002095
2096 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002097 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002098 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002099 encode_putfh(&xdr, args->fh, &hdr);
Benny Halevy28f56692009-04-01 09:22:09 -04002100 replen = hdr.replen + nfs4_fattr_bitmap_maxsz + 1;
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002101 encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr);
2102
Benny Halevy28f56692009-04-01 09:22:09 -04002103 xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
J. Bruce Fields029d1052005-06-22 17:16:22 +00002104 args->acl_pages, args->acl_pgbase, args->acl_len);
Andy Adamsond0179312008-12-23 16:06:17 -05002105 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002106 return 0;
J. Bruce Fields029d1052005-06-22 17:16:22 +00002107}
2108
2109/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002110 * Encode a WRITE request
2111 */
Al Viro8687b632006-10-19 23:28:48 -07002112static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002113{
2114 struct xdr_stream xdr;
2115 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002116 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002117 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002118
2119 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002120 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002121 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002122 encode_putfh(&xdr, args->fh, &hdr);
2123 encode_write(&xdr, args, &hdr);
\"Talpey, Thomas\4f22ccc2007-09-10 13:44:58 -04002124 req->rq_snd_buf.flags |= XDRBUF_WRITE;
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002125 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002126 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002127 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002128}
2129
2130/*
2131 * a COMMIT request
2132 */
Al Viro8687b632006-10-19 23:28:48 -07002133static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002134{
2135 struct xdr_stream xdr;
2136 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002137 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002138 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002139
2140 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002141 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002142 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002143 encode_putfh(&xdr, args->fh, &hdr);
2144 encode_commit(&xdr, args, &hdr);
2145 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002146 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002147 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002148}
2149
2150/*
2151 * FSINFO request
2152 */
Al Viro8687b632006-10-19 23:28:48 -07002153static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002154{
2155 struct xdr_stream xdr;
2156 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002157 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002158 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002159
2160 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002161 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002162 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002163 encode_putfh(&xdr, args->fh, &hdr);
2164 encode_fsinfo(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002165 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002166 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002167}
2168
2169/*
2170 * a PATHCONF request
2171 */
Al Viro8687b632006-10-19 23:28:48 -07002172static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002173{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002174 struct xdr_stream xdr;
2175 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002176 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002177 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002178
2179 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002180 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002181 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002182 encode_putfh(&xdr, args->fh, &hdr);
2183 encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0],
2184 &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002185 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002186 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002187}
2188
2189/*
2190 * a STATFS request
2191 */
Al Viro8687b632006-10-19 23:28:48 -07002192static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002193{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002194 struct xdr_stream xdr;
2195 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002196 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002197 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002198
2199 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002200 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002201 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002202 encode_putfh(&xdr, args->fh, &hdr);
2203 encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0],
2204 args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002205 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002206 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002207}
2208
2209/*
2210 * GETATTR_BITMAP request
2211 */
Benny Halevy43652ad2009-04-01 09:21:54 -04002212static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p,
2213 struct nfs4_server_caps_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002214{
2215 struct xdr_stream xdr;
2216 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002217 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002218 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002219
2220 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002221 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002222 encode_sequence(&xdr, &args->seq_args, &hdr);
Benny Halevy43652ad2009-04-01 09:21:54 -04002223 encode_putfh(&xdr, args->fhandle, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002224 encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
2225 FATTR4_WORD0_LINK_SUPPORT|
2226 FATTR4_WORD0_SYMLINK_SUPPORT|
2227 FATTR4_WORD0_ACLSUPPORT, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002228 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002229 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002230}
2231
2232/*
2233 * a RENEW request
2234 */
Al Viro8687b632006-10-19 23:28:48 -07002235static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002236{
2237 struct xdr_stream xdr;
2238 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002239 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002240 };
2241
2242 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002243 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002244 encode_renew(&xdr, clp, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002245 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002246 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002247}
2248
2249/*
2250 * a SETCLIENTID request
2251 */
Al Viro8687b632006-10-19 23:28:48 -07002252static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002253{
2254 struct xdr_stream xdr;
2255 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002256 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002257 };
2258
2259 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002260 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002261 encode_setclientid(&xdr, sc, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002262 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002263 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002264}
2265
2266/*
2267 * a SETCLIENTID_CONFIRM request
2268 */
Al Viro8687b632006-10-19 23:28:48 -07002269static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002270{
2271 struct xdr_stream xdr;
2272 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002273 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002274 };
2275 const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002276
2277 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002278 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002279 encode_setclientid_confirm(&xdr, clp, &hdr);
2280 encode_putrootfh(&xdr, &hdr);
2281 encode_fsinfo(&xdr, lease_bitmap, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002282 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002283 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002284}
2285
2286/*
2287 * DELEGRETURN request
2288 */
Al Viro8687b632006-10-19 23:28:48 -07002289static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002290{
2291 struct xdr_stream xdr;
2292 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002293 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002294 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002295
2296 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002297 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002298 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002299 encode_putfh(&xdr, args->fhandle, &hdr);
2300 encode_delegreturn(&xdr, args->stateid, &hdr);
2301 encode_getfattr(&xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002302 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002303 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002304}
2305
2306/*
Trond Myklebust683b57b2006-06-09 09:34:22 -04002307 * Encode FS_LOCATIONS request
2308 */
Al Viro8687b632006-10-19 23:28:48 -07002309static 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 -04002310{
2311 struct xdr_stream xdr;
2312 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002313 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Trond Myklebust683b57b2006-06-09 09:34:22 -04002314 };
Benny Halevy28f56692009-04-01 09:22:09 -04002315 uint32_t replen;
Trond Myklebust683b57b2006-06-09 09:34:22 -04002316
2317 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04002318 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04002319 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002320 encode_putfh(&xdr, args->dir_fh, &hdr);
2321 encode_lookup(&xdr, args->name, &hdr);
Benny Halevy28f56692009-04-01 09:22:09 -04002322 replen = hdr.replen; /* get the attribute into args->page */
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002323 encode_fs_locations(&xdr, args->bitmask, &hdr);
2324
Benny Halevy28f56692009-04-01 09:22:09 -04002325 xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
Trond Myklebust683b57b2006-06-09 09:34:22 -04002326 0, PAGE_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -05002327 encode_nops(&hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002328 return 0;
Trond Myklebust683b57b2006-06-09 09:34:22 -04002329}
2330
Benny Halevy99fe60d2009-04-01 09:22:29 -04002331#if defined(CONFIG_NFS_V4_1)
2332/*
2333 * EXCHANGE_ID request
2334 */
2335static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p,
2336 struct nfs41_exchange_id_args *args)
2337{
2338 struct xdr_stream xdr;
2339 struct compound_hdr hdr = {
2340 .minorversion = args->client->cl_minorversion,
2341 };
2342
2343 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2344 encode_compound_hdr(&xdr, req, &hdr);
2345 encode_exchange_id(&xdr, args, &hdr);
2346 encode_nops(&hdr);
2347 return 0;
2348}
Andy Adamson2050f0c2009-04-01 09:22:30 -04002349
2350/*
Andy Adamsonfc931582009-04-01 09:22:31 -04002351 * a CREATE_SESSION request
2352 */
2353static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p,
2354 struct nfs41_create_session_args *args)
2355{
2356 struct xdr_stream xdr;
2357 struct compound_hdr hdr = {
2358 .minorversion = args->client->cl_minorversion,
2359 };
2360
2361 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2362 encode_compound_hdr(&xdr, req, &hdr);
2363 encode_create_session(&xdr, args, &hdr);
2364 encode_nops(&hdr);
2365 return 0;
2366}
2367
2368/*
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002369 * a DESTROY_SESSION request
2370 */
2371static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p,
2372 struct nfs4_session *session)
2373{
2374 struct xdr_stream xdr;
2375 struct compound_hdr hdr = {
2376 .minorversion = session->clp->cl_minorversion,
2377 };
2378
2379 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2380 encode_compound_hdr(&xdr, req, &hdr);
2381 encode_destroy_session(&xdr, session, &hdr);
2382 encode_nops(&hdr);
2383 return 0;
2384}
2385
2386/*
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002387 * a SEQUENCE request
2388 */
2389static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p,
2390 struct nfs4_sequence_args *args)
2391{
2392 struct xdr_stream xdr;
2393 struct compound_hdr hdr = {
2394 .minorversion = nfs4_xdr_minorversion(args),
2395 };
2396
2397 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2398 encode_compound_hdr(&xdr, req, &hdr);
2399 encode_sequence(&xdr, args, &hdr);
2400 encode_nops(&hdr);
2401 return 0;
2402}
2403
2404/*
Andy Adamson2050f0c2009-04-01 09:22:30 -04002405 * a GET_LEASE_TIME request
2406 */
2407static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p,
2408 struct nfs4_get_lease_time_args *args)
2409{
2410 struct xdr_stream xdr;
2411 struct compound_hdr hdr = {
2412 .minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
2413 };
2414 const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
2415
2416 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2417 encode_compound_hdr(&xdr, req, &hdr);
2418 encode_sequence(&xdr, &args->la_seq_args, &hdr);
2419 encode_putrootfh(&xdr, &hdr);
2420 encode_fsinfo(&xdr, lease_bitmap, &hdr);
2421 encode_nops(&hdr);
2422 return 0;
2423}
Benny Halevy99fe60d2009-04-01 09:22:29 -04002424#endif /* CONFIG_NFS_V4_1 */
2425
Benny Halevy686841b2009-08-14 17:19:48 +03002426static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
2427{
2428 dprintk("nfs: %s: prematurely hit end of receive buffer. "
2429 "Remaining buffer length is %tu words.\n",
2430 func, xdr->end - xdr->p);
2431}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002432
Trond Myklebust683b57b2006-06-09 09:34:22 -04002433static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002434{
Al Viro8687b632006-10-19 23:28:48 -07002435 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002436
Benny Halevyc0eae662009-08-14 17:20:14 +03002437 p = xdr_inline_decode(xdr, 4);
2438 if (unlikely(!p))
2439 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002440 *len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03002441 p = xdr_inline_decode(xdr, *len);
2442 if (unlikely(!p))
2443 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002444 *string = (char *)p;
2445 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002446out_overflow:
2447 print_overflow_msg(__func__, xdr);
2448 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002449}
2450
2451static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
2452{
Al Viro8687b632006-10-19 23:28:48 -07002453 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002454
Benny Halevyc0eae662009-08-14 17:20:14 +03002455 p = xdr_inline_decode(xdr, 8);
2456 if (unlikely(!p))
2457 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03002458 hdr->status = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03002459 hdr->taglen = be32_to_cpup(p);
Andy Adamson6c0195a2008-12-23 16:06:15 -05002460
Benny Halevyc0eae662009-08-14 17:20:14 +03002461 p = xdr_inline_decode(xdr, hdr->taglen + 4);
2462 if (unlikely(!p))
2463 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002464 hdr->tag = (char *)p;
2465 p += XDR_QUADLEN(hdr->taglen);
Benny Halevycccddf42009-08-14 17:20:19 +03002466 hdr->nops = be32_to_cpup(p);
Benny Halevyaadf6152008-12-23 16:06:13 -05002467 if (unlikely(hdr->nops < 1))
2468 return nfs4_stat_to_errno(hdr->status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002469 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002470out_overflow:
2471 print_overflow_msg(__func__, xdr);
2472 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002473}
2474
2475static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
2476{
Al Viro8687b632006-10-19 23:28:48 -07002477 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002478 uint32_t opnum;
2479 int32_t nfserr;
2480
Benny Halevyc0eae662009-08-14 17:20:14 +03002481 p = xdr_inline_decode(xdr, 8);
2482 if (unlikely(!p))
2483 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03002484 opnum = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002485 if (opnum != expected) {
Chuck Leverfe82a182007-09-11 18:01:10 -04002486 dprintk("nfs: Server returned operation"
2487 " %d but we issued a request for %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002488 opnum, expected);
2489 return -EIO;
2490 }
Benny Halevycccddf42009-08-14 17:20:19 +03002491 nfserr = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002492 if (nfserr != NFS_OK)
Benny Halevy856dff32008-03-31 17:39:06 +03002493 return nfs4_stat_to_errno(nfserr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002494 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002495out_overflow:
2496 print_overflow_msg(__func__, xdr);
2497 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002498}
2499
2500/* Dummy routine */
David Howellsadfa6f92006-08-22 20:06:08 -04002501static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002502{
Al Viro8687b632006-10-19 23:28:48 -07002503 __be32 *p;
Trond Myklebust683b57b2006-06-09 09:34:22 -04002504 unsigned int strlen;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002505 char *str;
2506
Benny Halevyc0eae662009-08-14 17:20:14 +03002507 p = xdr_inline_decode(xdr, 12);
2508 if (likely(p))
2509 return decode_opaque_inline(xdr, &strlen, &str);
2510 print_overflow_msg(__func__, xdr);
2511 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002512}
2513
2514static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
2515{
Al Viro8687b632006-10-19 23:28:48 -07002516 uint32_t bmlen;
2517 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002518
Benny Halevyc0eae662009-08-14 17:20:14 +03002519 p = xdr_inline_decode(xdr, 4);
2520 if (unlikely(!p))
2521 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002522 bmlen = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002523
2524 bitmap[0] = bitmap[1] = 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002525 p = xdr_inline_decode(xdr, (bmlen << 2));
2526 if (unlikely(!p))
2527 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002528 if (bmlen > 0) {
Benny Halevy6f723f72009-08-14 17:19:37 +03002529 bitmap[0] = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002530 if (bmlen > 1)
Benny Halevycccddf42009-08-14 17:20:19 +03002531 bitmap[1] = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002532 }
2533 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002534out_overflow:
2535 print_overflow_msg(__func__, xdr);
2536 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002537}
2538
Al Viro8687b632006-10-19 23:28:48 -07002539static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002540{
Al Viro8687b632006-10-19 23:28:48 -07002541 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002542
Benny Halevyc0eae662009-08-14 17:20:14 +03002543 p = xdr_inline_decode(xdr, 4);
2544 if (unlikely(!p))
2545 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002546 *attrlen = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002547 *savep = xdr->p;
2548 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002549out_overflow:
2550 print_overflow_msg(__func__, xdr);
2551 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002552}
2553
2554static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
2555{
2556 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
2557 decode_attr_bitmap(xdr, bitmask);
2558 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
2559 } else
2560 bitmask[0] = bitmask[1] = 0;
Fred Isaman44109242008-04-02 15:21:15 +03002561 dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002562 return 0;
2563}
2564
2565static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
2566{
Al Viro8687b632006-10-19 23:28:48 -07002567 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04002568 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002569
2570 *type = 0;
2571 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
2572 return -EIO;
2573 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002574 p = xdr_inline_decode(xdr, 4);
2575 if (unlikely(!p))
2576 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002577 *type = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002578 if (*type < NF4REG || *type > NF4NAMEDATTR) {
Harvey Harrison3110ff82008-05-02 13:42:44 -07002579 dprintk("%s: bad type %d\n", __func__, *type);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002580 return -EIO;
2581 }
2582 bitmap[0] &= ~FATTR4_WORD0_TYPE;
Trond Myklebust409924e2009-03-11 14:10:27 -04002583 ret = NFS_ATTR_FATTR_TYPE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002584 }
Trond Myklebustbca79472009-03-11 14:10:26 -04002585 dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]);
Trond Myklebust409924e2009-03-11 14:10:27 -04002586 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03002587out_overflow:
2588 print_overflow_msg(__func__, xdr);
2589 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002590}
2591
2592static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
2593{
Al Viro8687b632006-10-19 23:28:48 -07002594 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04002595 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002596
2597 *change = 0;
2598 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
2599 return -EIO;
2600 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002601 p = xdr_inline_decode(xdr, 8);
2602 if (unlikely(!p))
2603 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002604 xdr_decode_hyper(p, change);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002605 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
Trond Myklebust409924e2009-03-11 14:10:27 -04002606 ret = NFS_ATTR_FATTR_CHANGE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002607 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002608 dprintk("%s: change attribute=%Lu\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002609 (unsigned long long)*change);
Trond Myklebust409924e2009-03-11 14:10:27 -04002610 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03002611out_overflow:
2612 print_overflow_msg(__func__, xdr);
2613 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002614}
2615
2616static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
2617{
Al Viro8687b632006-10-19 23:28:48 -07002618 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04002619 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002620
2621 *size = 0;
2622 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
2623 return -EIO;
2624 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002625 p = xdr_inline_decode(xdr, 8);
2626 if (unlikely(!p))
2627 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002628 xdr_decode_hyper(p, size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002629 bitmap[0] &= ~FATTR4_WORD0_SIZE;
Trond Myklebust409924e2009-03-11 14:10:27 -04002630 ret = NFS_ATTR_FATTR_SIZE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002631 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002632 dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size);
Trond Myklebust409924e2009-03-11 14:10:27 -04002633 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03002634out_overflow:
2635 print_overflow_msg(__func__, xdr);
2636 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002637}
2638
2639static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2640{
Al Viro8687b632006-10-19 23:28:48 -07002641 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002642
2643 *res = 0;
2644 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
2645 return -EIO;
2646 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002647 p = xdr_inline_decode(xdr, 4);
2648 if (unlikely(!p))
2649 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002650 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002651 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
2652 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002653 dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002654 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002655out_overflow:
2656 print_overflow_msg(__func__, xdr);
2657 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002658}
2659
2660static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2661{
Al Viro8687b632006-10-19 23:28:48 -07002662 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002663
2664 *res = 0;
2665 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
2666 return -EIO;
2667 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002668 p = xdr_inline_decode(xdr, 4);
2669 if (unlikely(!p))
2670 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002671 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002672 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
2673 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002674 dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002675 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002676out_overflow:
2677 print_overflow_msg(__func__, xdr);
2678 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002679}
2680
Trond Myklebust8b4bdcf2006-06-09 09:34:19 -04002681static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002682{
Al Viro8687b632006-10-19 23:28:48 -07002683 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04002684 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002685
2686 fsid->major = 0;
2687 fsid->minor = 0;
2688 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
2689 return -EIO;
2690 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002691 p = xdr_inline_decode(xdr, 16);
2692 if (unlikely(!p))
2693 goto out_overflow;
Benny Halevy3ceb4db2009-08-14 17:19:41 +03002694 p = xdr_decode_hyper(p, &fsid->major);
Benny Halevycccddf42009-08-14 17:20:19 +03002695 xdr_decode_hyper(p, &fsid->minor);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002696 bitmap[0] &= ~FATTR4_WORD0_FSID;
Trond Myklebust409924e2009-03-11 14:10:27 -04002697 ret = NFS_ATTR_FATTR_FSID;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002698 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002699 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002700 (unsigned long long)fsid->major,
2701 (unsigned long long)fsid->minor);
Trond Myklebust409924e2009-03-11 14:10:27 -04002702 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03002703out_overflow:
2704 print_overflow_msg(__func__, xdr);
2705 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002706}
2707
2708static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2709{
Al Viro8687b632006-10-19 23:28:48 -07002710 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002711
2712 *res = 60;
2713 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
2714 return -EIO;
2715 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002716 p = xdr_inline_decode(xdr, 4);
2717 if (unlikely(!p))
2718 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002719 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002720 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
2721 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002722 dprintk("%s: file size=%u\n", __func__, (unsigned int)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002723 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002724out_overflow:
2725 print_overflow_msg(__func__, xdr);
2726 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002727}
2728
2729static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2730{
Al Viro8687b632006-10-19 23:28:48 -07002731 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002732
2733 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
2734 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
2735 return -EIO;
2736 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002737 p = xdr_inline_decode(xdr, 4);
2738 if (unlikely(!p))
2739 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002740 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002741 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
2742 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002743 dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002744 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03002745out_overflow:
2746 print_overflow_msg(__func__, xdr);
2747 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002748}
2749
2750static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
2751{
Al Viro8687b632006-10-19 23:28:48 -07002752 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04002753 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002754
2755 *fileid = 0;
2756 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
2757 return -EIO;
2758 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002759 p = xdr_inline_decode(xdr, 8);
2760 if (unlikely(!p))
2761 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002762 xdr_decode_hyper(p, fileid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002763 bitmap[0] &= ~FATTR4_WORD0_FILEID;
Trond Myklebust409924e2009-03-11 14:10:27 -04002764 ret = NFS_ATTR_FATTR_FILEID;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002765 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002766 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
Trond Myklebust409924e2009-03-11 14:10:27 -04002767 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03002768out_overflow:
2769 print_overflow_msg(__func__, xdr);
2770 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002771}
2772
Manoj Naik99baf622006-06-09 09:34:24 -04002773static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
2774{
Al Viro8687b632006-10-19 23:28:48 -07002775 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04002776 int ret = 0;
Manoj Naik99baf622006-06-09 09:34:24 -04002777
2778 *fileid = 0;
2779 if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U)))
2780 return -EIO;
2781 if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002782 p = xdr_inline_decode(xdr, 8);
2783 if (unlikely(!p))
2784 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002785 xdr_decode_hyper(p, fileid);
Manoj Naik99baf622006-06-09 09:34:24 -04002786 bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
Trond Myklebust409924e2009-03-11 14:10:27 -04002787 ret = NFS_ATTR_FATTR_FILEID;
Manoj Naik99baf622006-06-09 09:34:24 -04002788 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002789 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
Trond Myklebust409924e2009-03-11 14:10:27 -04002790 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03002791out_overflow:
2792 print_overflow_msg(__func__, xdr);
2793 return -EIO;
Manoj Naik99baf622006-06-09 09:34:24 -04002794}
2795
Linus Torvalds1da177e2005-04-16 15:20:36 -07002796static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2797{
Al Viro8687b632006-10-19 23:28:48 -07002798 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002799 int status = 0;
2800
2801 *res = 0;
2802 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
2803 return -EIO;
2804 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002805 p = xdr_inline_decode(xdr, 8);
2806 if (unlikely(!p))
2807 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002808 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002809 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
2810 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002811 dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002812 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03002813out_overflow:
2814 print_overflow_msg(__func__, xdr);
2815 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002816}
2817
2818static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2819{
Al Viro8687b632006-10-19 23:28:48 -07002820 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002821 int status = 0;
2822
2823 *res = 0;
2824 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
2825 return -EIO;
2826 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002827 p = xdr_inline_decode(xdr, 8);
2828 if (unlikely(!p))
2829 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002830 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002831 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
2832 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002833 dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002834 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03002835out_overflow:
2836 print_overflow_msg(__func__, xdr);
2837 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002838}
2839
2840static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2841{
Al Viro8687b632006-10-19 23:28:48 -07002842 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002843 int status = 0;
2844
2845 *res = 0;
2846 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
2847 return -EIO;
2848 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002849 p = xdr_inline_decode(xdr, 8);
2850 if (unlikely(!p))
2851 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002852 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002853 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
2854 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07002855 dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002856 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03002857out_overflow:
2858 print_overflow_msg(__func__, xdr);
2859 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002860}
2861
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002862static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
2863{
Chuck Lever464ad6b2007-10-26 13:32:08 -04002864 u32 n;
Al Viro8687b632006-10-19 23:28:48 -07002865 __be32 *p;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002866 int status = 0;
2867
Benny Halevyc0eae662009-08-14 17:20:14 +03002868 p = xdr_inline_decode(xdr, 4);
2869 if (unlikely(!p))
2870 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002871 n = be32_to_cpup(p);
Andy Adamson33a43f22006-06-09 09:34:30 -04002872 if (n == 0)
2873 goto root_path;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002874 dprintk("path ");
2875 path->ncomponents = 0;
2876 while (path->ncomponents < n) {
2877 struct nfs4_string *component = &path->components[path->ncomponents];
2878 status = decode_opaque_inline(xdr, &component->len, &component->data);
2879 if (unlikely(status != 0))
2880 goto out_eio;
2881 if (path->ncomponents != n)
2882 dprintk("/");
2883 dprintk("%s", component->data);
2884 if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS)
2885 path->ncomponents++;
2886 else {
2887 dprintk("cannot parse %d components in path\n", n);
2888 goto out_eio;
2889 }
2890 }
2891out:
2892 dprintk("\n");
2893 return status;
Andy Adamson33a43f22006-06-09 09:34:30 -04002894root_path:
2895/* a root pathname is sent as a zero component4 */
2896 path->ncomponents = 1;
2897 path->components[0].len=0;
2898 path->components[0].data=NULL;
2899 dprintk("path /\n");
2900 goto out;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002901out_eio:
2902 dprintk(" status %d", status);
2903 status = -EIO;
2904 goto out;
Benny Halevyc0eae662009-08-14 17:20:14 +03002905out_overflow:
2906 print_overflow_msg(__func__, xdr);
2907 return -EIO;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002908}
2909
2910static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
Trond Myklebust683b57b2006-06-09 09:34:22 -04002911{
2912 int n;
Al Viro8687b632006-10-19 23:28:48 -07002913 __be32 *p;
Trond Myklebust683b57b2006-06-09 09:34:22 -04002914 int status = -EIO;
2915
2916 if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U)))
2917 goto out;
2918 status = 0;
2919 if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS)))
2920 goto out;
Harvey Harrison3110ff82008-05-02 13:42:44 -07002921 dprintk("%s: fsroot ", __func__);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002922 status = decode_pathname(xdr, &res->fs_path);
Trond Myklebust683b57b2006-06-09 09:34:22 -04002923 if (unlikely(status != 0))
2924 goto out;
Benny Halevyc0eae662009-08-14 17:20:14 +03002925 p = xdr_inline_decode(xdr, 4);
2926 if (unlikely(!p))
2927 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002928 n = be32_to_cpup(p);
Trond Myklebust683b57b2006-06-09 09:34:22 -04002929 if (n <= 0)
2930 goto out_eio;
2931 res->nlocations = 0;
2932 while (res->nlocations < n) {
Chuck Lever464ad6b2007-10-26 13:32:08 -04002933 u32 m;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002934 struct nfs4_fs_location *loc = &res->locations[res->nlocations];
Trond Myklebust683b57b2006-06-09 09:34:22 -04002935
Benny Halevyc0eae662009-08-14 17:20:14 +03002936 p = xdr_inline_decode(xdr, 4);
2937 if (unlikely(!p))
2938 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002939 m = be32_to_cpup(p);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002940
2941 loc->nservers = 0;
Harvey Harrison3110ff82008-05-02 13:42:44 -07002942 dprintk("%s: servers ", __func__);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002943 while (loc->nservers < m) {
2944 struct nfs4_string *server = &loc->servers[loc->nservers];
2945 status = decode_opaque_inline(xdr, &server->len, &server->data);
2946 if (unlikely(status != 0))
2947 goto out_eio;
2948 dprintk("%s ", server->data);
2949 if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS)
2950 loc->nservers++;
2951 else {
Chuck Lever464ad6b2007-10-26 13:32:08 -04002952 unsigned int i;
2953 dprintk("%s: using first %u of %u servers "
2954 "returned for location %u\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07002955 __func__,
Chuck Lever464ad6b2007-10-26 13:32:08 -04002956 NFS4_FS_LOCATION_MAXSERVERS,
2957 m, res->nlocations);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002958 for (i = loc->nservers; i < m; i++) {
Trond Myklebust2e42c3e2007-05-14 17:20:41 -04002959 unsigned int len;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002960 char *data;
2961 status = decode_opaque_inline(xdr, &len, &data);
2962 if (unlikely(status != 0))
2963 goto out_eio;
2964 }
2965 }
2966 }
2967 status = decode_pathname(xdr, &loc->rootpath);
Trond Myklebust683b57b2006-06-09 09:34:22 -04002968 if (unlikely(status != 0))
2969 goto out_eio;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04002970 if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES)
Trond Myklebust683b57b2006-06-09 09:34:22 -04002971 res->nlocations++;
2972 }
Trond Myklebust409924e2009-03-11 14:10:27 -04002973 if (res->nlocations != 0)
2974 status = NFS_ATTR_FATTR_V4_REFERRAL;
Trond Myklebust683b57b2006-06-09 09:34:22 -04002975out:
Harvey Harrison3110ff82008-05-02 13:42:44 -07002976 dprintk("%s: fs_locations done, error = %d\n", __func__, status);
Trond Myklebust683b57b2006-06-09 09:34:22 -04002977 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03002978out_overflow:
2979 print_overflow_msg(__func__, xdr);
Trond Myklebust683b57b2006-06-09 09:34:22 -04002980out_eio:
2981 status = -EIO;
2982 goto out;
2983}
2984
Linus Torvalds1da177e2005-04-16 15:20:36 -07002985static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2986{
Al Viro8687b632006-10-19 23:28:48 -07002987 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002988 int status = 0;
2989
2990 *res = 0;
2991 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
2992 return -EIO;
2993 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03002994 p = xdr_inline_decode(xdr, 8);
2995 if (unlikely(!p))
2996 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03002997 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002998 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
2999 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003000 dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003001 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003002out_overflow:
3003 print_overflow_msg(__func__, xdr);
3004 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003005}
3006
3007static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
3008{
Al Viro8687b632006-10-19 23:28:48 -07003009 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003010 int status = 0;
3011
3012 *maxlink = 1;
3013 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
3014 return -EIO;
3015 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003016 p = xdr_inline_decode(xdr, 4);
3017 if (unlikely(!p))
3018 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003019 *maxlink = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003020 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
3021 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003022 dprintk("%s: maxlink=%u\n", __func__, *maxlink);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003023 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003024out_overflow:
3025 print_overflow_msg(__func__, xdr);
3026 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003027}
3028
3029static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
3030{
Al Viro8687b632006-10-19 23:28:48 -07003031 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003032 int status = 0;
3033
3034 *maxname = 1024;
3035 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
3036 return -EIO;
3037 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003038 p = xdr_inline_decode(xdr, 4);
3039 if (unlikely(!p))
3040 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003041 *maxname = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003042 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
3043 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003044 dprintk("%s: maxname=%u\n", __func__, *maxname);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003045 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003046out_overflow:
3047 print_overflow_msg(__func__, xdr);
3048 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003049}
3050
3051static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3052{
Al Viro8687b632006-10-19 23:28:48 -07003053 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003054 int status = 0;
3055
3056 *res = 1024;
3057 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
3058 return -EIO;
3059 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
3060 uint64_t maxread;
Benny Halevyc0eae662009-08-14 17:20:14 +03003061 p = xdr_inline_decode(xdr, 8);
3062 if (unlikely(!p))
3063 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003064 xdr_decode_hyper(p, &maxread);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003065 if (maxread > 0x7FFFFFFF)
3066 maxread = 0x7FFFFFFF;
3067 *res = (uint32_t)maxread;
3068 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
3069 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003070 dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003071 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003072out_overflow:
3073 print_overflow_msg(__func__, xdr);
3074 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003075}
3076
3077static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3078{
Al Viro8687b632006-10-19 23:28:48 -07003079 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003080 int status = 0;
3081
3082 *res = 1024;
3083 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
3084 return -EIO;
3085 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
3086 uint64_t maxwrite;
Benny Halevyc0eae662009-08-14 17:20:14 +03003087 p = xdr_inline_decode(xdr, 8);
3088 if (unlikely(!p))
3089 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003090 xdr_decode_hyper(p, &maxwrite);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003091 if (maxwrite > 0x7FFFFFFF)
3092 maxwrite = 0x7FFFFFFF;
3093 *res = (uint32_t)maxwrite;
3094 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
3095 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003096 dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003097 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003098out_overflow:
3099 print_overflow_msg(__func__, xdr);
3100 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003101}
3102
Trond Myklebustbca79472009-03-11 14:10:26 -04003103static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003104{
Trond Myklebustbca79472009-03-11 14:10:26 -04003105 uint32_t tmp;
Al Viro8687b632006-10-19 23:28:48 -07003106 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003107 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003108
3109 *mode = 0;
3110 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
3111 return -EIO;
3112 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003113 p = xdr_inline_decode(xdr, 4);
3114 if (unlikely(!p))
3115 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003116 tmp = be32_to_cpup(p);
Trond Myklebustbca79472009-03-11 14:10:26 -04003117 *mode = tmp & ~S_IFMT;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003118 bitmap[1] &= ~FATTR4_WORD1_MODE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003119 ret = NFS_ATTR_FATTR_MODE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003120 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003121 dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode);
Trond Myklebust409924e2009-03-11 14:10:27 -04003122 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003123out_overflow:
3124 print_overflow_msg(__func__, xdr);
3125 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003126}
3127
3128static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
3129{
Al Viro8687b632006-10-19 23:28:48 -07003130 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003131 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003132
3133 *nlink = 1;
3134 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
3135 return -EIO;
3136 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003137 p = xdr_inline_decode(xdr, 4);
3138 if (unlikely(!p))
3139 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003140 *nlink = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003141 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
Trond Myklebust409924e2009-03-11 14:10:27 -04003142 ret = NFS_ATTR_FATTR_NLINK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003143 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003144 dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink);
Trond Myklebust409924e2009-03-11 14:10:27 -04003145 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003146out_overflow:
3147 print_overflow_msg(__func__, xdr);
3148 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003149}
3150
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003151static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
3152 struct nfs_client *clp, uint32_t *uid, int may_sleep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003153{
Al Viro8687b632006-10-19 23:28:48 -07003154 uint32_t len;
3155 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003156 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003157
3158 *uid = -2;
3159 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
3160 return -EIO;
3161 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003162 p = xdr_inline_decode(xdr, 4);
3163 if (unlikely(!p))
3164 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003165 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003166 p = xdr_inline_decode(xdr, len);
3167 if (unlikely(!p))
3168 goto out_overflow;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003169 if (!may_sleep) {
3170 /* do nothing */
3171 } else if (len < XDR_MAX_NETOBJ) {
Trond Myklebust409924e2009-03-11 14:10:27 -04003172 if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0)
3173 ret = NFS_ATTR_FATTR_OWNER;
3174 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07003175 dprintk("%s: nfs_map_name_to_uid failed!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003176 __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003177 } else
Chuck Leverfe82a182007-09-11 18:01:10 -04003178 dprintk("%s: name too long (%u)!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003179 __func__, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003180 bitmap[1] &= ~FATTR4_WORD1_OWNER;
3181 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003182 dprintk("%s: uid=%d\n", __func__, (int)*uid);
Trond Myklebust409924e2009-03-11 14:10:27 -04003183 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003184out_overflow:
3185 print_overflow_msg(__func__, xdr);
3186 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003187}
3188
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003189static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
3190 struct nfs_client *clp, uint32_t *gid, int may_sleep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003191{
Al Viro8687b632006-10-19 23:28:48 -07003192 uint32_t len;
3193 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003194 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003195
3196 *gid = -2;
3197 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
3198 return -EIO;
3199 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003200 p = xdr_inline_decode(xdr, 4);
3201 if (unlikely(!p))
3202 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003203 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003204 p = xdr_inline_decode(xdr, len);
3205 if (unlikely(!p))
3206 goto out_overflow;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003207 if (!may_sleep) {
3208 /* do nothing */
3209 } else if (len < XDR_MAX_NETOBJ) {
Trond Myklebust409924e2009-03-11 14:10:27 -04003210 if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0)
3211 ret = NFS_ATTR_FATTR_GROUP;
3212 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07003213 dprintk("%s: nfs_map_group_to_gid failed!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003214 __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003215 } else
Chuck Leverfe82a182007-09-11 18:01:10 -04003216 dprintk("%s: name too long (%u)!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003217 __func__, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003218 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
3219 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003220 dprintk("%s: gid=%d\n", __func__, (int)*gid);
Trond Myklebust409924e2009-03-11 14:10:27 -04003221 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003222out_overflow:
3223 print_overflow_msg(__func__, xdr);
3224 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003225}
3226
3227static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
3228{
Al Viro8687b632006-10-19 23:28:48 -07003229 uint32_t major = 0, minor = 0;
3230 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003231 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003232
3233 *rdev = MKDEV(0,0);
3234 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
3235 return -EIO;
3236 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
3237 dev_t tmp;
3238
Benny Halevyc0eae662009-08-14 17:20:14 +03003239 p = xdr_inline_decode(xdr, 8);
3240 if (unlikely(!p))
3241 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003242 major = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03003243 minor = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003244 tmp = MKDEV(major, minor);
3245 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
3246 *rdev = tmp;
3247 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
Trond Myklebust409924e2009-03-11 14:10:27 -04003248 ret = NFS_ATTR_FATTR_RDEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003249 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003250 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor);
Trond Myklebust409924e2009-03-11 14:10:27 -04003251 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003252out_overflow:
3253 print_overflow_msg(__func__, xdr);
3254 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003255}
3256
3257static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3258{
Al Viro8687b632006-10-19 23:28:48 -07003259 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003260 int status = 0;
3261
3262 *res = 0;
3263 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
3264 return -EIO;
3265 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003266 p = xdr_inline_decode(xdr, 8);
3267 if (unlikely(!p))
3268 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003269 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003270 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
3271 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003272 dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003273 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003274out_overflow:
3275 print_overflow_msg(__func__, xdr);
3276 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003277}
3278
3279static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3280{
Al Viro8687b632006-10-19 23:28:48 -07003281 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003282 int status = 0;
3283
3284 *res = 0;
3285 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
3286 return -EIO;
3287 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003288 p = xdr_inline_decode(xdr, 8);
3289 if (unlikely(!p))
3290 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003291 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003292 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
3293 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003294 dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003295 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003296out_overflow:
3297 print_overflow_msg(__func__, xdr);
3298 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003299}
3300
3301static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3302{
Al Viro8687b632006-10-19 23:28:48 -07003303 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003304 int status = 0;
3305
3306 *res = 0;
3307 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
3308 return -EIO;
3309 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003310 p = xdr_inline_decode(xdr, 8);
3311 if (unlikely(!p))
3312 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003313 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003314 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
3315 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003316 dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003317 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003318out_overflow:
3319 print_overflow_msg(__func__, xdr);
3320 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003321}
3322
3323static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
3324{
Al Viro8687b632006-10-19 23:28:48 -07003325 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003326 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003327
3328 *used = 0;
3329 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
3330 return -EIO;
3331 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003332 p = xdr_inline_decode(xdr, 8);
3333 if (unlikely(!p))
3334 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003335 xdr_decode_hyper(p, used);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003336 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
Trond Myklebust409924e2009-03-11 14:10:27 -04003337 ret = NFS_ATTR_FATTR_SPACE_USED;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003338 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003339 dprintk("%s: space used=%Lu\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003340 (unsigned long long)*used);
Trond Myklebust409924e2009-03-11 14:10:27 -04003341 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003342out_overflow:
3343 print_overflow_msg(__func__, xdr);
3344 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003345}
3346
3347static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
3348{
Al Viro8687b632006-10-19 23:28:48 -07003349 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003350 uint64_t sec;
3351 uint32_t nsec;
3352
Benny Halevyc0eae662009-08-14 17:20:14 +03003353 p = xdr_inline_decode(xdr, 12);
3354 if (unlikely(!p))
3355 goto out_overflow;
Benny Halevy3ceb4db2009-08-14 17:19:41 +03003356 p = xdr_decode_hyper(p, &sec);
Benny Halevycccddf42009-08-14 17:20:19 +03003357 nsec = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003358 time->tv_sec = (time_t)sec;
3359 time->tv_nsec = (long)nsec;
3360 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003361out_overflow:
3362 print_overflow_msg(__func__, xdr);
3363 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003364}
3365
3366static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
3367{
3368 int status = 0;
3369
3370 time->tv_sec = 0;
3371 time->tv_nsec = 0;
3372 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
3373 return -EIO;
3374 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
3375 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04003376 if (status == 0)
3377 status = NFS_ATTR_FATTR_ATIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003378 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
3379 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003380 dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003381 return status;
3382}
3383
3384static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
3385{
3386 int status = 0;
3387
3388 time->tv_sec = 0;
3389 time->tv_nsec = 0;
3390 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
3391 return -EIO;
3392 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
3393 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04003394 if (status == 0)
3395 status = NFS_ATTR_FATTR_CTIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003396 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
3397 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003398 dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003399 return status;
3400}
3401
3402static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
3403{
3404 int status = 0;
3405
3406 time->tv_sec = 0;
3407 time->tv_nsec = 0;
3408 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
3409 return -EIO;
3410 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
3411 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04003412 if (status == 0)
3413 status = NFS_ATTR_FATTR_MTIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003414 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
3415 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003416 dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003417 return status;
3418}
3419
Al Viro8687b632006-10-19 23:28:48 -07003420static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003421{
3422 unsigned int attrwords = XDR_QUADLEN(attrlen);
3423 unsigned int nwords = xdr->p - savep;
3424
3425 if (unlikely(attrwords != nwords)) {
Chuck Leverfe82a182007-09-11 18:01:10 -04003426 dprintk("%s: server returned incorrect attribute length: "
3427 "%u %c %u\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003428 __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003429 attrwords << 2,
3430 (attrwords < nwords) ? '<' : '>',
3431 nwords << 2);
3432 return -EIO;
3433 }
3434 return 0;
3435}
3436
3437static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3438{
Al Viro8687b632006-10-19 23:28:48 -07003439 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003440
Benny Halevyc0eae662009-08-14 17:20:14 +03003441 p = xdr_inline_decode(xdr, 20);
3442 if (unlikely(!p))
3443 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003444 cinfo->atomic = be32_to_cpup(p++);
Benny Halevy3ceb4db2009-08-14 17:19:41 +03003445 p = xdr_decode_hyper(p, &cinfo->before);
Benny Halevycccddf42009-08-14 17:20:19 +03003446 xdr_decode_hyper(p, &cinfo->after);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003447 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003448out_overflow:
3449 print_overflow_msg(__func__, xdr);
3450 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003451}
3452
3453static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
3454{
Al Viro8687b632006-10-19 23:28:48 -07003455 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003456 uint32_t supp, acc;
3457 int status;
3458
3459 status = decode_op_hdr(xdr, OP_ACCESS);
3460 if (status)
3461 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003462 p = xdr_inline_decode(xdr, 8);
3463 if (unlikely(!p))
3464 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003465 supp = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03003466 acc = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003467 access->supported = supp;
3468 access->access = acc;
3469 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003470out_overflow:
3471 print_overflow_msg(__func__, xdr);
3472 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003473}
3474
Benny Halevy07d30432009-08-14 17:19:52 +03003475static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003476{
Al Viro8687b632006-10-19 23:28:48 -07003477 __be32 *p;
Benny Halevy07d30432009-08-14 17:19:52 +03003478
3479 p = xdr_inline_decode(xdr, len);
3480 if (likely(p)) {
3481 memcpy(buf, p, len);
3482 return 0;
3483 }
3484 print_overflow_msg(__func__, xdr);
3485 return -EIO;
3486}
3487
3488static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
3489{
3490 return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003491}
3492
3493static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
3494{
Linus Torvalds1da177e2005-04-16 15:20:36 -07003495 int status;
3496
3497 status = decode_op_hdr(xdr, OP_CLOSE);
Trond Myklebustc1d51932008-04-07 13:20:54 -04003498 if (status != -EIO)
3499 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03003500 if (!status)
3501 status = decode_stateid(xdr, &res->stateid);
3502 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003503}
3504
Benny Halevydb942bb2009-08-14 17:19:56 +03003505static int decode_verifier(struct xdr_stream *xdr, void *verifier)
3506{
3507 return decode_opaque_fixed(xdr, verifier, 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003508}
3509
3510static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
3511{
Linus Torvalds1da177e2005-04-16 15:20:36 -07003512 int status;
3513
3514 status = decode_op_hdr(xdr, OP_COMMIT);
Benny Halevydb942bb2009-08-14 17:19:56 +03003515 if (!status)
3516 status = decode_verifier(xdr, res->verf->verifier);
3517 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003518}
3519
3520static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3521{
Al Viro8687b632006-10-19 23:28:48 -07003522 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003523 uint32_t bmlen;
3524 int status;
3525
3526 status = decode_op_hdr(xdr, OP_CREATE);
3527 if (status)
3528 return status;
3529 if ((status = decode_change_info(xdr, cinfo)))
3530 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003531 p = xdr_inline_decode(xdr, 4);
3532 if (unlikely(!p))
3533 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003534 bmlen = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003535 p = xdr_inline_decode(xdr, bmlen << 2);
3536 if (likely(p))
3537 return 0;
3538out_overflow:
3539 print_overflow_msg(__func__, xdr);
3540 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003541}
3542
3543static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
3544{
Al Viro8687b632006-10-19 23:28:48 -07003545 __be32 *savep;
Andy Adamson6c0195a2008-12-23 16:06:15 -05003546 uint32_t attrlen, bitmap[2] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07003547 int status;
3548
3549 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3550 goto xdr_error;
3551 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3552 goto xdr_error;
3553 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3554 goto xdr_error;
3555 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
3556 goto xdr_error;
3557 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
3558 goto xdr_error;
3559 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
3560 goto xdr_error;
3561 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
3562 goto xdr_error;
3563 status = verify_attr_len(xdr, savep, attrlen);
3564xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07003565 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003566 return status;
3567}
Andy Adamson6c0195a2008-12-23 16:06:15 -05003568
Linus Torvalds1da177e2005-04-16 15:20:36 -07003569static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
3570{
Al Viro8687b632006-10-19 23:28:48 -07003571 __be32 *savep;
Andy Adamson6c0195a2008-12-23 16:06:15 -05003572 uint32_t attrlen, bitmap[2] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07003573 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05003574
Linus Torvalds1da177e2005-04-16 15:20:36 -07003575 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3576 goto xdr_error;
3577 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3578 goto xdr_error;
3579 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3580 goto xdr_error;
3581
3582 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
3583 goto xdr_error;
3584 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
3585 goto xdr_error;
3586 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
3587 goto xdr_error;
3588 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
3589 goto xdr_error;
3590 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
3591 goto xdr_error;
3592 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
3593 goto xdr_error;
3594
3595 status = verify_attr_len(xdr, savep, attrlen);
3596xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07003597 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003598 return status;
3599}
3600
3601static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
3602{
Al Viro8687b632006-10-19 23:28:48 -07003603 __be32 *savep;
Andy Adamson6c0195a2008-12-23 16:06:15 -05003604 uint32_t attrlen, bitmap[2] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07003605 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05003606
Linus Torvalds1da177e2005-04-16 15:20:36 -07003607 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3608 goto xdr_error;
3609 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3610 goto xdr_error;
3611 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3612 goto xdr_error;
3613
3614 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
3615 goto xdr_error;
3616 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
3617 goto xdr_error;
3618
3619 status = verify_attr_len(xdr, savep, attrlen);
3620xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07003621 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003622 return status;
3623}
3624
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003625static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr,
3626 const struct nfs_server *server, int may_sleep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003627{
Al Viro8687b632006-10-19 23:28:48 -07003628 __be32 *savep;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003629 uint32_t attrlen,
3630 bitmap[2] = {0},
3631 type;
Trond Myklebustbca79472009-03-11 14:10:26 -04003632 int status;
3633 umode_t fmode = 0;
Manoj Naik99baf622006-06-09 09:34:24 -04003634 uint64_t fileid;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003635
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003636 status = decode_op_hdr(xdr, OP_GETATTR);
3637 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003638 goto xdr_error;
3639
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003640 status = decode_attr_bitmap(xdr, bitmap);
3641 if (status < 0)
3642 goto xdr_error;
3643
3644 status = decode_attr_length(xdr, &attrlen, &savep);
3645 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003646 goto xdr_error;
3647
3648
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003649 status = decode_attr_type(xdr, bitmap, &type);
3650 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003651 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003652 fattr->mode = 0;
3653 if (status != 0) {
3654 fattr->mode |= nfs_type2fmt[type];
3655 fattr->valid |= status;
3656 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003657
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003658 status = decode_attr_change(xdr, bitmap, &fattr->change_attr);
3659 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003660 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003661 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003662
3663 status = decode_attr_size(xdr, bitmap, &fattr->size);
3664 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003665 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003666 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003667
3668 status = decode_attr_fsid(xdr, bitmap, &fattr->fsid);
3669 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003670 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003671 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003672
3673 status = decode_attr_fileid(xdr, bitmap, &fattr->fileid);
3674 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003675 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003676 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003677
3678 status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr,
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003679 struct nfs4_fs_locations,
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003680 fattr));
3681 if (status < 0)
Trond Myklebust683b57b2006-06-09 09:34:22 -04003682 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003683 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003684
3685 status = decode_attr_mode(xdr, bitmap, &fmode);
3686 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003687 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003688 if (status != 0) {
3689 fattr->mode |= fmode;
3690 fattr->valid |= status;
3691 }
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003692
3693 status = decode_attr_nlink(xdr, bitmap, &fattr->nlink);
3694 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003695 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003696 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003697
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003698 status = decode_attr_owner(xdr, bitmap, server->nfs_client,
3699 &fattr->uid, may_sleep);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003700 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003701 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003702 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003703
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003704 status = decode_attr_group(xdr, bitmap, server->nfs_client,
3705 &fattr->gid, may_sleep);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003706 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003707 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003708 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003709
3710 status = decode_attr_rdev(xdr, bitmap, &fattr->rdev);
3711 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003712 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003713 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003714
3715 status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used);
3716 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003717 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003718 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003719
3720 status = decode_attr_time_access(xdr, bitmap, &fattr->atime);
3721 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003722 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003723 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003724
3725 status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime);
3726 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003727 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003728 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003729
3730 status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime);
3731 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003732 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003733 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003734
3735 status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid);
3736 if (status < 0)
Manoj Naik99baf622006-06-09 09:34:24 -04003737 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04003738 if (status != 0 && !(fattr->valid & status)) {
Manoj Naik99baf622006-06-09 09:34:24 -04003739 fattr->fileid = fileid;
Trond Myklebust409924e2009-03-11 14:10:27 -04003740 fattr->valid |= status;
3741 }
Trond Myklebustf26c7a72009-03-11 14:10:26 -04003742
3743 status = verify_attr_len(xdr, savep, attrlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003744xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07003745 dprintk("%s: xdr returned %d\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003746 return status;
3747}
3748
3749
3750static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
3751{
Al Viro8687b632006-10-19 23:28:48 -07003752 __be32 *savep;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003753 uint32_t attrlen, bitmap[2];
3754 int status;
3755
3756 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3757 goto xdr_error;
3758 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3759 goto xdr_error;
3760 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3761 goto xdr_error;
3762
3763 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
3764
3765 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
3766 goto xdr_error;
3767 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
3768 goto xdr_error;
3769 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
3770 goto xdr_error;
3771 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
3772 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
3773 goto xdr_error;
3774 fsinfo->wtpref = fsinfo->wtmax;
3775
3776 status = verify_attr_len(xdr, savep, attrlen);
3777xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07003778 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003779 return status;
3780}
3781
3782static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
3783{
Al Viro8687b632006-10-19 23:28:48 -07003784 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003785 uint32_t len;
3786 int status;
3787
Trond Myklebust99367812007-07-17 21:52:41 -04003788 /* Zero handle first to allow comparisons */
3789 memset(fh, 0, sizeof(*fh));
3790
Linus Torvalds1da177e2005-04-16 15:20:36 -07003791 status = decode_op_hdr(xdr, OP_GETFH);
3792 if (status)
3793 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003794
Benny Halevyc0eae662009-08-14 17:20:14 +03003795 p = xdr_inline_decode(xdr, 4);
3796 if (unlikely(!p))
3797 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003798 len = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003799 if (len > NFS4_FHSIZE)
3800 return -EIO;
3801 fh->size = len;
Benny Halevyc0eae662009-08-14 17:20:14 +03003802 p = xdr_inline_decode(xdr, len);
3803 if (unlikely(!p))
3804 goto out_overflow;
Benny Halevy99398d02009-08-14 17:20:05 +03003805 memcpy(fh->data, p, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003806 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003807out_overflow:
3808 print_overflow_msg(__func__, xdr);
3809 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003810}
3811
3812static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3813{
3814 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05003815
Linus Torvalds1da177e2005-04-16 15:20:36 -07003816 status = decode_op_hdr(xdr, OP_LINK);
3817 if (status)
3818 return status;
3819 return decode_change_info(xdr, cinfo);
3820}
3821
3822/*
3823 * We create the owner, so we know a proper owner.id length is 4.
3824 */
Trond Myklebust911d1aa2006-01-03 09:55:16 +01003825static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003826{
Trond Myklebust911d1aa2006-01-03 09:55:16 +01003827 uint64_t offset, length, clientid;
Al Viro8687b632006-10-19 23:28:48 -07003828 __be32 *p;
Trond Myklebust911d1aa2006-01-03 09:55:16 +01003829 uint32_t namelen, type;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003830
Benny Halevyc0eae662009-08-14 17:20:14 +03003831 p = xdr_inline_decode(xdr, 32);
3832 if (unlikely(!p))
3833 goto out_overflow;
Benny Halevy3ceb4db2009-08-14 17:19:41 +03003834 p = xdr_decode_hyper(p, &offset);
3835 p = xdr_decode_hyper(p, &length);
Benny Halevy6f723f72009-08-14 17:19:37 +03003836 type = be32_to_cpup(p++);
Trond Myklebust911d1aa2006-01-03 09:55:16 +01003837 if (fl != NULL) {
3838 fl->fl_start = (loff_t)offset;
3839 fl->fl_end = fl->fl_start + (loff_t)length - 1;
3840 if (length == ~(uint64_t)0)
3841 fl->fl_end = OFFSET_MAX;
3842 fl->fl_type = F_WRLCK;
3843 if (type & 1)
3844 fl->fl_type = F_RDLCK;
3845 fl->fl_pid = 0;
3846 }
Benny Halevy3ceb4db2009-08-14 17:19:41 +03003847 p = xdr_decode_hyper(p, &clientid);
Benny Halevycccddf42009-08-14 17:20:19 +03003848 namelen = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003849 p = xdr_inline_decode(xdr, namelen);
3850 if (likely(p))
3851 return -NFS4ERR_DENIED;
3852out_overflow:
3853 print_overflow_msg(__func__, xdr);
3854 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003855}
3856
Trond Myklebust911d1aa2006-01-03 09:55:16 +01003857static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003858{
Linus Torvalds1da177e2005-04-16 15:20:36 -07003859 int status;
3860
3861 status = decode_op_hdr(xdr, OP_LOCK);
Trond Myklebustc1d51932008-04-07 13:20:54 -04003862 if (status == -EIO)
3863 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003864 if (status == 0) {
Benny Halevy07d30432009-08-14 17:19:52 +03003865 status = decode_stateid(xdr, &res->stateid);
3866 if (unlikely(status))
3867 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003868 } else if (status == -NFS4ERR_DENIED)
Trond Myklebustc1d51932008-04-07 13:20:54 -04003869 status = decode_lock_denied(xdr, NULL);
3870 if (res->open_seqid != NULL)
3871 nfs_increment_open_seqid(status, res->open_seqid);
3872 nfs_increment_lock_seqid(status, res->lock_seqid);
3873out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07003874 return status;
3875}
3876
Trond Myklebust911d1aa2006-01-03 09:55:16 +01003877static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003878{
3879 int status;
3880 status = decode_op_hdr(xdr, OP_LOCKT);
3881 if (status == -NFS4ERR_DENIED)
Trond Myklebust911d1aa2006-01-03 09:55:16 +01003882 return decode_lock_denied(xdr, res->denied);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003883 return status;
3884}
3885
Trond Myklebust911d1aa2006-01-03 09:55:16 +01003886static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003887{
Linus Torvalds1da177e2005-04-16 15:20:36 -07003888 int status;
3889
3890 status = decode_op_hdr(xdr, OP_LOCKU);
Trond Myklebustc1d51932008-04-07 13:20:54 -04003891 if (status != -EIO)
3892 nfs_increment_lock_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03003893 if (status == 0)
3894 status = decode_stateid(xdr, &res->stateid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003895 return status;
3896}
3897
3898static int decode_lookup(struct xdr_stream *xdr)
3899{
3900 return decode_op_hdr(xdr, OP_LOOKUP);
3901}
3902
3903/* This is too sick! */
3904static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
3905{
Andy Adamson05d564f2008-12-23 16:06:15 -05003906 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003907 uint32_t limit_type, nblocks, blocksize;
3908
Benny Halevyc0eae662009-08-14 17:20:14 +03003909 p = xdr_inline_decode(xdr, 12);
3910 if (unlikely(!p))
3911 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003912 limit_type = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003913 switch (limit_type) {
Andy Adamson05d564f2008-12-23 16:06:15 -05003914 case 1:
Benny Halevycccddf42009-08-14 17:20:19 +03003915 xdr_decode_hyper(p, maxsize);
Andy Adamson05d564f2008-12-23 16:06:15 -05003916 break;
3917 case 2:
Benny Halevy6f723f72009-08-14 17:19:37 +03003918 nblocks = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03003919 blocksize = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05003920 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003921 }
3922 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003923out_overflow:
3924 print_overflow_msg(__func__, xdr);
3925 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003926}
3927
3928static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
3929{
Andy Adamson05d564f2008-12-23 16:06:15 -05003930 __be32 *p;
3931 uint32_t delegation_type;
Benny Halevy07d30432009-08-14 17:19:52 +03003932 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003933
Benny Halevyc0eae662009-08-14 17:20:14 +03003934 p = xdr_inline_decode(xdr, 4);
3935 if (unlikely(!p))
3936 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003937 delegation_type = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003938 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
3939 res->delegation_type = 0;
3940 return 0;
3941 }
Benny Halevy07d30432009-08-14 17:19:52 +03003942 status = decode_stateid(xdr, &res->delegation);
3943 if (unlikely(status))
3944 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003945 p = xdr_inline_decode(xdr, 4);
3946 if (unlikely(!p))
3947 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003948 res->do_recall = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05003949
Linus Torvalds1da177e2005-04-16 15:20:36 -07003950 switch (delegation_type) {
Andy Adamson05d564f2008-12-23 16:06:15 -05003951 case NFS4_OPEN_DELEGATE_READ:
3952 res->delegation_type = FMODE_READ;
3953 break;
3954 case NFS4_OPEN_DELEGATE_WRITE:
3955 res->delegation_type = FMODE_WRITE|FMODE_READ;
3956 if (decode_space_limit(xdr, &res->maxsize) < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003957 return -EIO;
3958 }
David Howells7539bba2006-08-22 20:06:09 -04003959 return decode_ace(xdr, NULL, res->server->nfs_client);
Benny Halevyc0eae662009-08-14 17:20:14 +03003960out_overflow:
3961 print_overflow_msg(__func__, xdr);
3962 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003963}
3964
3965static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
3966{
Andy Adamson05d564f2008-12-23 16:06:15 -05003967 __be32 *p;
Jeff Laytonaa53ed52007-06-05 14:49:03 -04003968 uint32_t savewords, bmlen, i;
Andy Adamson05d564f2008-12-23 16:06:15 -05003969 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003970
Andy Adamson05d564f2008-12-23 16:06:15 -05003971 status = decode_op_hdr(xdr, OP_OPEN);
Trond Myklebustc1d51932008-04-07 13:20:54 -04003972 if (status != -EIO)
3973 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03003974 if (!status)
3975 status = decode_stateid(xdr, &res->stateid);
3976 if (unlikely(status))
Andy Adamson05d564f2008-12-23 16:06:15 -05003977 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003978
Andy Adamson05d564f2008-12-23 16:06:15 -05003979 decode_change_info(xdr, &res->cinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003980
Benny Halevyc0eae662009-08-14 17:20:14 +03003981 p = xdr_inline_decode(xdr, 8);
3982 if (unlikely(!p))
3983 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003984 res->rflags = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03003985 bmlen = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05003986 if (bmlen > 10)
3987 goto xdr_error;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003988
Benny Halevyc0eae662009-08-14 17:20:14 +03003989 p = xdr_inline_decode(xdr, bmlen << 2);
3990 if (unlikely(!p))
3991 goto out_overflow;
Jeff Laytonaa53ed52007-06-05 14:49:03 -04003992 savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE);
3993 for (i = 0; i < savewords; ++i)
Benny Halevy6f723f72009-08-14 17:19:37 +03003994 res->attrset[i] = be32_to_cpup(p++);
Jeff Laytonaa53ed52007-06-05 14:49:03 -04003995 for (; i < NFS4_BITMAP_SIZE; i++)
3996 res->attrset[i] = 0;
3997
Linus Torvalds1da177e2005-04-16 15:20:36 -07003998 return decode_delegation(xdr, res);
3999xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004000 dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004001 return -EIO;
Benny Halevyc0eae662009-08-14 17:20:14 +03004002out_overflow:
4003 print_overflow_msg(__func__, xdr);
4004 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004005}
4006
4007static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
4008{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004009 int status;
4010
Andy Adamson05d564f2008-12-23 16:06:15 -05004011 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004012 if (status != -EIO)
4013 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004014 if (!status)
4015 status = decode_stateid(xdr, &res->stateid);
4016 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004017}
4018
4019static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
4020{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004021 int status;
4022
4023 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004024 if (status != -EIO)
4025 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004026 if (!status)
4027 status = decode_stateid(xdr, &res->stateid);
4028 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004029}
4030
4031static int decode_putfh(struct xdr_stream *xdr)
4032{
4033 return decode_op_hdr(xdr, OP_PUTFH);
4034}
4035
4036static int decode_putrootfh(struct xdr_stream *xdr)
4037{
4038 return decode_op_hdr(xdr, OP_PUTROOTFH);
4039}
4040
4041static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res)
4042{
4043 struct kvec *iov = req->rq_rcv_buf.head;
Al Viro8687b632006-10-19 23:28:48 -07004044 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004045 uint32_t count, eof, recvd, hdrlen;
4046 int status;
4047
4048 status = decode_op_hdr(xdr, OP_READ);
4049 if (status)
4050 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004051 p = xdr_inline_decode(xdr, 8);
4052 if (unlikely(!p))
4053 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004054 eof = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004055 count = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004056 hdrlen = (u8 *) p - (u8 *) iov->iov_base;
4057 recvd = req->rq_rcv_buf.len - hdrlen;
4058 if (count > recvd) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004059 dprintk("NFS: server cheating in read reply: "
Linus Torvalds1da177e2005-04-16 15:20:36 -07004060 "count %u > recvd %u\n", count, recvd);
4061 count = recvd;
4062 eof = 0;
4063 }
4064 xdr_read_pages(xdr, count);
4065 res->eof = eof;
4066 res->count = count;
4067 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004068out_overflow:
4069 print_overflow_msg(__func__, xdr);
4070 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004071}
4072
4073static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
4074{
4075 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
4076 struct page *page = *rcvbuf->pages;
4077 struct kvec *iov = rcvbuf->head;
Chuck Leverbcecff72007-10-26 13:32:03 -04004078 size_t hdrlen;
4079 u32 recvd, pglen = rcvbuf->page_len;
Al Viro8687b632006-10-19 23:28:48 -07004080 __be32 *end, *entry, *p, *kaddr;
Jeff Layton7bda2cd2008-02-22 14:50:01 -05004081 unsigned int nr = 0;
Chuck Leverbcecff72007-10-26 13:32:03 -04004082 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004083
4084 status = decode_op_hdr(xdr, OP_READDIR);
Benny Halevydb942bb2009-08-14 17:19:56 +03004085 if (!status)
4086 status = decode_verifier(xdr, readdir->verifier.data);
4087 if (unlikely(status))
Linus Torvalds1da177e2005-04-16 15:20:36 -07004088 return status;
Fred Isaman44109242008-04-02 15:21:15 +03004089 dprintk("%s: verifier = %08x:%08x\n",
4090 __func__,
Trond Myklebusteadf4592005-06-22 17:16:39 +00004091 ((u32 *)readdir->verifier.data)[0],
4092 ((u32 *)readdir->verifier.data)[1]);
4093
Linus Torvalds1da177e2005-04-16 15:20:36 -07004094
Benny Halevydb942bb2009-08-14 17:19:56 +03004095 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004096 recvd = rcvbuf->len - hdrlen;
4097 if (pglen > recvd)
4098 pglen = recvd;
4099 xdr_read_pages(xdr, pglen);
4100
4101 BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE);
Al Viro8687b632006-10-19 23:28:48 -07004102 kaddr = p = kmap_atomic(page, KM_USER0);
David Howellse8896492006-08-24 15:44:19 -04004103 end = p + ((pglen + readdir->pgbase) >> 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004104 entry = p;
Jeff Layton7bda2cd2008-02-22 14:50:01 -05004105
4106 /* Make sure the packet actually has a value_follows and EOF entry */
4107 if ((entry + 1) > end)
4108 goto short_pkt;
4109
4110 for (; *p++; nr++) {
Chuck Leverbcecff72007-10-26 13:32:03 -04004111 u32 len, attrlen, xlen;
David Howellse8896492006-08-24 15:44:19 -04004112 if (end - p < 3)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004113 goto short_pkt;
Trond Myklebusteadf4592005-06-22 17:16:39 +00004114 dprintk("cookie = %Lu, ", *((unsigned long long *)p));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004115 p += 2; /* cookie */
4116 len = ntohl(*p++); /* filename length */
4117 if (len > NFS4_MAXNAMLEN) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004118 dprintk("NFS: giant filename in readdir (len 0x%x)\n",
4119 len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004120 goto err_unmap;
4121 }
David Howellse8896492006-08-24 15:44:19 -04004122 xlen = XDR_QUADLEN(len);
4123 if (end - p < xlen + 1)
4124 goto short_pkt;
Trond Myklebusteadf4592005-06-22 17:16:39 +00004125 dprintk("filename = %*s\n", len, (char *)p);
David Howellse8896492006-08-24 15:44:19 -04004126 p += xlen;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004127 len = ntohl(*p++); /* bitmap length */
David Howellse8896492006-08-24 15:44:19 -04004128 if (end - p < len + 1)
4129 goto short_pkt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004130 p += len;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004131 attrlen = XDR_QUADLEN(ntohl(*p++));
David Howellse8896492006-08-24 15:44:19 -04004132 if (end - p < attrlen + 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004133 goto short_pkt;
David Howellse8896492006-08-24 15:44:19 -04004134 p += attrlen; /* attributes */
Linus Torvalds1da177e2005-04-16 15:20:36 -07004135 entry = p;
4136 }
Jeff Layton7bda2cd2008-02-22 14:50:01 -05004137 /*
4138 * Apparently some server sends responses that are a valid size, but
4139 * contain no entries, and have value_follows==0 and EOF==0. For
4140 * those, just set the EOF marker.
4141 */
4142 if (!nr && entry[1] == 0) {
4143 dprintk("NFS: readdir reply truncated!\n");
4144 entry[1] = 1;
4145 }
Andy Adamson6c0195a2008-12-23 16:06:15 -05004146out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07004147 kunmap_atomic(kaddr, KM_USER0);
4148 return 0;
4149short_pkt:
Jeff Layton7bda2cd2008-02-22 14:50:01 -05004150 /*
4151 * When we get a short packet there are 2 possibilities. We can
4152 * return an error, or fix up the response to look like a valid
4153 * response and return what we have so far. If there are no
4154 * entries and the packet was short, then return -EIO. If there
4155 * are valid entries in the response, return them and pretend that
4156 * the call was successful, but incomplete. The caller can retry the
4157 * readdir starting at the last cookie.
4158 */
Harvey Harrison3110ff82008-05-02 13:42:44 -07004159 dprintk("%s: short packet at entry %d\n", __func__, nr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004160 entry[0] = entry[1] = 0;
Jeff Layton7bda2cd2008-02-22 14:50:01 -05004161 if (nr)
4162 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004163err_unmap:
4164 kunmap_atomic(kaddr, KM_USER0);
4165 return -errno_NFSERR_IO;
4166}
4167
4168static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
4169{
4170 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
4171 struct kvec *iov = rcvbuf->head;
Chuck Leverbcecff72007-10-26 13:32:03 -04004172 size_t hdrlen;
4173 u32 len, recvd;
Al Viro8687b632006-10-19 23:28:48 -07004174 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004175 char *kaddr;
4176 int status;
4177
4178 status = decode_op_hdr(xdr, OP_READLINK);
4179 if (status)
4180 return status;
4181
4182 /* Convert length of symlink */
Benny Halevyc0eae662009-08-14 17:20:14 +03004183 p = xdr_inline_decode(xdr, 4);
4184 if (unlikely(!p))
4185 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004186 len = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004187 if (len >= rcvbuf->page_len || len <= 0) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004188 dprintk("nfs: server returned giant symlink!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07004189 return -ENAMETOOLONG;
4190 }
4191 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
4192 recvd = req->rq_rcv_buf.len - hdrlen;
4193 if (recvd < len) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004194 dprintk("NFS: server cheating in readlink reply: "
Linus Torvalds1da177e2005-04-16 15:20:36 -07004195 "count %u > recvd %u\n", len, recvd);
4196 return -EIO;
4197 }
4198 xdr_read_pages(xdr, len);
4199 /*
4200 * The XDR encode routine has set things up so that
4201 * the link text will be copied directly into the
4202 * buffer. We just have to do overflow-checking,
4203 * and and null-terminate the text (the VFS expects
4204 * null-termination).
4205 */
4206 kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0);
4207 kaddr[len+rcvbuf->page_base] = '\0';
4208 kunmap_atomic(kaddr, KM_USER0);
4209 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004210out_overflow:
4211 print_overflow_msg(__func__, xdr);
4212 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004213}
4214
4215static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4216{
4217 int status;
4218
4219 status = decode_op_hdr(xdr, OP_REMOVE);
4220 if (status)
4221 goto out;
4222 status = decode_change_info(xdr, cinfo);
4223out:
4224 return status;
4225}
4226
4227static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
4228 struct nfs4_change_info *new_cinfo)
4229{
4230 int status;
4231
4232 status = decode_op_hdr(xdr, OP_RENAME);
4233 if (status)
4234 goto out;
4235 if ((status = decode_change_info(xdr, old_cinfo)))
4236 goto out;
4237 status = decode_change_info(xdr, new_cinfo);
4238out:
4239 return status;
4240}
4241
4242static int decode_renew(struct xdr_stream *xdr)
4243{
4244 return decode_op_hdr(xdr, OP_RENEW);
4245}
4246
Trond Myklebust56ae19f2005-10-27 22:12:40 -04004247static int
4248decode_restorefh(struct xdr_stream *xdr)
4249{
4250 return decode_op_hdr(xdr, OP_RESTOREFH);
4251}
4252
J. Bruce Fields029d1052005-06-22 17:16:22 +00004253static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
4254 size_t *acl_len)
4255{
Al Viro8687b632006-10-19 23:28:48 -07004256 __be32 *savep;
J. Bruce Fields029d1052005-06-22 17:16:22 +00004257 uint32_t attrlen,
4258 bitmap[2] = {0};
4259 struct kvec *iov = req->rq_rcv_buf.head;
4260 int status;
4261
4262 *acl_len = 0;
4263 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4264 goto out;
4265 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4266 goto out;
4267 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4268 goto out;
4269
4270 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
4271 return -EIO;
4272 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
Chuck Leverbcecff72007-10-26 13:32:03 -04004273 size_t hdrlen;
4274 u32 recvd;
J. Bruce Fields029d1052005-06-22 17:16:22 +00004275
4276 /* We ignore &savep and don't do consistency checks on
4277 * the attr length. Let userspace figure it out.... */
4278 hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base;
4279 recvd = req->rq_rcv_buf.len - hdrlen;
4280 if (attrlen > recvd) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004281 dprintk("NFS: server cheating in getattr"
J. Bruce Fields029d1052005-06-22 17:16:22 +00004282 " acl reply: attrlen %u > recvd %u\n",
4283 attrlen, recvd);
4284 return -EINVAL;
4285 }
J. Bruce Fieldsc04871e2006-05-30 16:28:58 -04004286 xdr_read_pages(xdr, attrlen);
J. Bruce Fields029d1052005-06-22 17:16:22 +00004287 *acl_len = attrlen;
J. Bruce Fields8c233cf2005-10-13 16:54:27 -04004288 } else
4289 status = -EOPNOTSUPP;
J. Bruce Fields029d1052005-06-22 17:16:22 +00004290
4291out:
4292 return status;
4293}
4294
Linus Torvalds1da177e2005-04-16 15:20:36 -07004295static int
4296decode_savefh(struct xdr_stream *xdr)
4297{
4298 return decode_op_hdr(xdr, OP_SAVEFH);
4299}
4300
Benny Halevy9e9ecc02009-04-01 09:22:00 -04004301static int decode_setattr(struct xdr_stream *xdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004302{
Al Viro8687b632006-10-19 23:28:48 -07004303 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004304 uint32_t bmlen;
4305 int status;
4306
Linus Torvalds1da177e2005-04-16 15:20:36 -07004307 status = decode_op_hdr(xdr, OP_SETATTR);
4308 if (status)
4309 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004310 p = xdr_inline_decode(xdr, 4);
4311 if (unlikely(!p))
4312 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004313 bmlen = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03004314 p = xdr_inline_decode(xdr, bmlen << 2);
4315 if (likely(p))
4316 return 0;
4317out_overflow:
4318 print_overflow_msg(__func__, xdr);
4319 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004320}
4321
David Howellsadfa6f92006-08-22 20:06:08 -04004322static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004323{
Al Viro8687b632006-10-19 23:28:48 -07004324 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004325 uint32_t opnum;
4326 int32_t nfserr;
4327
Benny Halevyc0eae662009-08-14 17:20:14 +03004328 p = xdr_inline_decode(xdr, 8);
4329 if (unlikely(!p))
4330 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004331 opnum = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004332 if (opnum != OP_SETCLIENTID) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004333 dprintk("nfs: decode_setclientid: Server returned operation"
Andy Adamson6c0195a2008-12-23 16:06:15 -05004334 " %d\n", opnum);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004335 return -EIO;
4336 }
Benny Halevycccddf42009-08-14 17:20:19 +03004337 nfserr = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004338 if (nfserr == NFS_OK) {
Benny Halevyc0eae662009-08-14 17:20:14 +03004339 p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE);
4340 if (unlikely(!p))
4341 goto out_overflow;
Benny Halevy3ceb4db2009-08-14 17:19:41 +03004342 p = xdr_decode_hyper(p, &clp->cl_clientid);
Benny Halevy99398d02009-08-14 17:20:05 +03004343 memcpy(clp->cl_confirm.data, p, NFS4_VERIFIER_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004344 } else if (nfserr == NFSERR_CLID_INUSE) {
4345 uint32_t len;
4346
4347 /* skip netid string */
Benny Halevyc0eae662009-08-14 17:20:14 +03004348 p = xdr_inline_decode(xdr, 4);
4349 if (unlikely(!p))
4350 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004351 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03004352 p = xdr_inline_decode(xdr, len);
4353 if (unlikely(!p))
4354 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004355
4356 /* skip uaddr string */
Benny Halevyc0eae662009-08-14 17:20:14 +03004357 p = xdr_inline_decode(xdr, 4);
4358 if (unlikely(!p))
4359 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004360 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03004361 p = xdr_inline_decode(xdr, len);
4362 if (unlikely(!p))
4363 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004364 return -NFSERR_CLID_INUSE;
4365 } else
Benny Halevy856dff32008-03-31 17:39:06 +03004366 return nfs4_stat_to_errno(nfserr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004367
4368 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004369out_overflow:
4370 print_overflow_msg(__func__, xdr);
4371 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004372}
4373
4374static int decode_setclientid_confirm(struct xdr_stream *xdr)
4375{
4376 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
4377}
4378
4379static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
4380{
Al Viro8687b632006-10-19 23:28:48 -07004381 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004382 int status;
4383
4384 status = decode_op_hdr(xdr, OP_WRITE);
4385 if (status)
4386 return status;
4387
Benny Halevyc0eae662009-08-14 17:20:14 +03004388 p = xdr_inline_decode(xdr, 16);
4389 if (unlikely(!p))
4390 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004391 res->count = be32_to_cpup(p++);
4392 res->verf->committed = be32_to_cpup(p++);
Benny Halevy99398d02009-08-14 17:20:05 +03004393 memcpy(res->verf->verifier, p, 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004394 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004395out_overflow:
4396 print_overflow_msg(__func__, xdr);
4397 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004398}
4399
4400static int decode_delegreturn(struct xdr_stream *xdr)
4401{
4402 return decode_op_hdr(xdr, OP_DELEGRETURN);
4403}
4404
Benny Halevy99fe60d2009-04-01 09:22:29 -04004405#if defined(CONFIG_NFS_V4_1)
4406static int decode_exchange_id(struct xdr_stream *xdr,
4407 struct nfs41_exchange_id_res *res)
4408{
4409 __be32 *p;
4410 uint32_t dummy;
Benny Halevy2460ba52009-08-14 17:20:10 +03004411 char *dummy_str;
Benny Halevy99fe60d2009-04-01 09:22:29 -04004412 int status;
4413 struct nfs_client *clp = res->client;
4414
4415 status = decode_op_hdr(xdr, OP_EXCHANGE_ID);
4416 if (status)
4417 return status;
4418
Benny Halevyc0eae662009-08-14 17:20:14 +03004419 p = xdr_inline_decode(xdr, 8);
4420 if (unlikely(!p))
4421 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004422 xdr_decode_hyper(p, &clp->cl_ex_clid);
Benny Halevyc0eae662009-08-14 17:20:14 +03004423 p = xdr_inline_decode(xdr, 12);
4424 if (unlikely(!p))
4425 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004426 clp->cl_seqid = be32_to_cpup(p++);
4427 clp->cl_exchange_flags = be32_to_cpup(p++);
Benny Halevy99fe60d2009-04-01 09:22:29 -04004428
4429 /* We ask for SP4_NONE */
Benny Halevycccddf42009-08-14 17:20:19 +03004430 dummy = be32_to_cpup(p);
Benny Halevy99fe60d2009-04-01 09:22:29 -04004431 if (dummy != SP4_NONE)
4432 return -EIO;
4433
4434 /* Throw away minor_id */
Benny Halevyc0eae662009-08-14 17:20:14 +03004435 p = xdr_inline_decode(xdr, 8);
4436 if (unlikely(!p))
4437 goto out_overflow;
Benny Halevy99fe60d2009-04-01 09:22:29 -04004438
4439 /* Throw away Major id */
Benny Halevy2460ba52009-08-14 17:20:10 +03004440 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4441 if (unlikely(status))
4442 return status;
Benny Halevy99fe60d2009-04-01 09:22:29 -04004443
4444 /* Throw away server_scope */
Benny Halevy2460ba52009-08-14 17:20:10 +03004445 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4446 if (unlikely(status))
4447 return status;
Benny Halevy99fe60d2009-04-01 09:22:29 -04004448
4449 /* Throw away Implementation id array */
Benny Halevy2460ba52009-08-14 17:20:10 +03004450 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4451 if (unlikely(status))
4452 return status;
Benny Halevy99fe60d2009-04-01 09:22:29 -04004453
4454 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004455out_overflow:
4456 print_overflow_msg(__func__, xdr);
4457 return -EIO;
Benny Halevy99fe60d2009-04-01 09:22:29 -04004458}
Andy Adamsonfc931582009-04-01 09:22:31 -04004459
4460static int decode_chan_attrs(struct xdr_stream *xdr,
4461 struct nfs4_channel_attrs *attrs)
4462{
4463 __be32 *p;
4464 u32 nr_attrs;
4465
Benny Halevyc0eae662009-08-14 17:20:14 +03004466 p = xdr_inline_decode(xdr, 28);
4467 if (unlikely(!p))
4468 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004469 attrs->headerpadsz = be32_to_cpup(p++);
4470 attrs->max_rqst_sz = be32_to_cpup(p++);
4471 attrs->max_resp_sz = be32_to_cpup(p++);
4472 attrs->max_resp_sz_cached = be32_to_cpup(p++);
4473 attrs->max_ops = be32_to_cpup(p++);
4474 attrs->max_reqs = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004475 nr_attrs = be32_to_cpup(p);
Andy Adamsonfc931582009-04-01 09:22:31 -04004476 if (unlikely(nr_attrs > 1)) {
4477 printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n",
4478 __func__, nr_attrs);
4479 return -EINVAL;
4480 }
Benny Halevyc0eae662009-08-14 17:20:14 +03004481 if (nr_attrs == 1) {
4482 p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */
4483 if (unlikely(!p))
4484 goto out_overflow;
4485 }
Andy Adamsonfc931582009-04-01 09:22:31 -04004486 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004487out_overflow:
4488 print_overflow_msg(__func__, xdr);
4489 return -EIO;
Andy Adamsonfc931582009-04-01 09:22:31 -04004490}
4491
Benny Halevye78291e2009-08-14 17:20:00 +03004492static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid)
4493{
4494 return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN);
Andy Adamsonfc931582009-04-01 09:22:31 -04004495}
4496
4497static int decode_create_session(struct xdr_stream *xdr,
4498 struct nfs41_create_session_res *res)
4499{
4500 __be32 *p;
4501 int status;
4502 struct nfs_client *clp = res->client;
4503 struct nfs4_session *session = clp->cl_session;
4504
4505 status = decode_op_hdr(xdr, OP_CREATE_SESSION);
Benny Halevye78291e2009-08-14 17:20:00 +03004506 if (!status)
4507 status = decode_sessionid(xdr, &session->sess_id);
4508 if (unlikely(status))
Andy Adamsonfc931582009-04-01 09:22:31 -04004509 return status;
4510
Andy Adamsonfc931582009-04-01 09:22:31 -04004511 /* seqid, flags */
Benny Halevyc0eae662009-08-14 17:20:14 +03004512 p = xdr_inline_decode(xdr, 8);
4513 if (unlikely(!p))
4514 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004515 clp->cl_seqid = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004516 session->flags = be32_to_cpup(p);
Andy Adamsonfc931582009-04-01 09:22:31 -04004517
4518 /* Channel attributes */
4519 status = decode_chan_attrs(xdr, &session->fc_attrs);
4520 if (!status)
4521 status = decode_chan_attrs(xdr, &session->bc_attrs);
4522 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004523out_overflow:
4524 print_overflow_msg(__func__, xdr);
4525 return -EIO;
Andy Adamsonfc931582009-04-01 09:22:31 -04004526}
Andy Adamson0f3e66c2009-04-01 09:22:34 -04004527
4528static int decode_destroy_session(struct xdr_stream *xdr, void *dummy)
4529{
4530 return decode_op_hdr(xdr, OP_DESTROY_SESSION);
4531}
Benny Halevy99fe60d2009-04-01 09:22:29 -04004532#endif /* CONFIG_NFS_V4_1 */
4533
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004534static int decode_sequence(struct xdr_stream *xdr,
4535 struct nfs4_sequence_res *res,
4536 struct rpc_rqst *rqstp)
4537{
4538#if defined(CONFIG_NFS_V4_1)
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004539 struct nfs4_slot *slot;
4540 struct nfs4_sessionid id;
4541 u32 dummy;
4542 int status;
4543 __be32 *p;
4544
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004545 if (!res->sr_session)
4546 return 0;
4547
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004548 status = decode_op_hdr(xdr, OP_SEQUENCE);
Benny Halevye78291e2009-08-14 17:20:00 +03004549 if (!status)
4550 status = decode_sessionid(xdr, &id);
4551 if (unlikely(status))
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004552 goto out_err;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004553
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004554 /*
4555 * If the server returns different values for sessionID, slotID or
4556 * sequence number, the server is looney tunes.
4557 */
4558 status = -ESERVERFAULT;
4559
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004560 if (memcmp(id.data, res->sr_session->sess_id.data,
4561 NFS4_MAX_SESSIONID_LEN)) {
4562 dprintk("%s Invalid session id\n", __func__);
4563 goto out_err;
4564 }
Benny Halevye78291e2009-08-14 17:20:00 +03004565
Benny Halevyc0eae662009-08-14 17:20:14 +03004566 p = xdr_inline_decode(xdr, 20);
4567 if (unlikely(!p))
4568 goto out_overflow;
Benny Halevye78291e2009-08-14 17:20:00 +03004569
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004570 /* seqid */
Benny Halevye78291e2009-08-14 17:20:00 +03004571 slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid];
Benny Halevy6f723f72009-08-14 17:19:37 +03004572 dummy = be32_to_cpup(p++);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004573 if (dummy != slot->seq_nr) {
4574 dprintk("%s Invalid sequence number\n", __func__);
4575 goto out_err;
4576 }
4577 /* slot id */
Benny Halevy6f723f72009-08-14 17:19:37 +03004578 dummy = be32_to_cpup(p++);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004579 if (dummy != res->sr_slotid) {
4580 dprintk("%s Invalid slot id\n", __func__);
4581 goto out_err;
4582 }
4583 /* highest slot id - currently not processed */
Benny Halevy6f723f72009-08-14 17:19:37 +03004584 dummy = be32_to_cpup(p++);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004585 /* target highest slot id - currently not processed */
Benny Halevy6f723f72009-08-14 17:19:37 +03004586 dummy = be32_to_cpup(p++);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004587 /* result flags - currently not processed */
Benny Halevycccddf42009-08-14 17:20:19 +03004588 dummy = be32_to_cpup(p);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004589 status = 0;
4590out_err:
4591 res->sr_status = status;
4592 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004593out_overflow:
4594 print_overflow_msg(__func__, xdr);
4595 status = -EIO;
4596 goto out_err;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004597#else /* CONFIG_NFS_V4_1 */
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004598 return 0;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04004599#endif /* CONFIG_NFS_V4_1 */
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004600}
4601
Linus Torvalds1da177e2005-04-16 15:20:36 -07004602/*
Benny Halevy49c25592008-12-23 16:06:16 -05004603 * END OF "GENERIC" DECODE ROUTINES.
4604 */
4605
4606/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07004607 * Decode OPEN_DOWNGRADE response
4608 */
Al Viro8687b632006-10-19 23:28:48 -07004609static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004610{
Andy Adamson05d564f2008-12-23 16:06:15 -05004611 struct xdr_stream xdr;
4612 struct compound_hdr hdr;
4613 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004614
Andy Adamson05d564f2008-12-23 16:06:15 -05004615 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4616 status = decode_compound_hdr(&xdr, &hdr);
4617 if (status)
4618 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004619 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4620 if (status)
4621 goto out;
Andy Adamson05d564f2008-12-23 16:06:15 -05004622 status = decode_putfh(&xdr);
4623 if (status)
4624 goto out;
4625 status = decode_open_downgrade(&xdr, res);
Trond Myklebust516a6af2005-10-27 22:12:41 -04004626 if (status != 0)
4627 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004628 decode_getfattr(&xdr, res->fattr, res->server,
4629 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004630out:
Andy Adamson05d564f2008-12-23 16:06:15 -05004631 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004632}
4633
4634/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07004635 * Decode ACCESS response
4636 */
Al Viro8687b632006-10-19 23:28:48 -07004637static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004638{
4639 struct xdr_stream xdr;
4640 struct compound_hdr hdr;
4641 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004642
Linus Torvalds1da177e2005-04-16 15:20:36 -07004643 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004644 status = decode_compound_hdr(&xdr, &hdr);
4645 if (status)
4646 goto out;
4647 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4648 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004649 goto out;
Trond Myklebust76b32992007-08-10 17:45:11 -04004650 status = decode_putfh(&xdr);
4651 if (status != 0)
4652 goto out;
4653 status = decode_access(&xdr, res);
4654 if (status != 0)
4655 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004656 decode_getfattr(&xdr, res->fattr, res->server,
4657 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004658out:
4659 return status;
4660}
4661
4662/*
4663 * Decode LOOKUP response
4664 */
Al Viro8687b632006-10-19 23:28:48 -07004665static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004666{
4667 struct xdr_stream xdr;
4668 struct compound_hdr hdr;
4669 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004670
Linus Torvalds1da177e2005-04-16 15:20:36 -07004671 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004672 status = decode_compound_hdr(&xdr, &hdr);
4673 if (status)
4674 goto out;
4675 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4676 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004677 goto out;
4678 if ((status = decode_putfh(&xdr)) != 0)
4679 goto out;
4680 if ((status = decode_lookup(&xdr)) != 0)
4681 goto out;
4682 if ((status = decode_getfh(&xdr, res->fh)) != 0)
4683 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004684 status = decode_getfattr(&xdr, res->fattr, res->server
4685 ,!RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004686out:
4687 return status;
4688}
4689
4690/*
4691 * Decode LOOKUP_ROOT response
4692 */
Al Viro8687b632006-10-19 23:28:48 -07004693static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004694{
4695 struct xdr_stream xdr;
4696 struct compound_hdr hdr;
4697 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004698
Linus Torvalds1da177e2005-04-16 15:20:36 -07004699 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004700 status = decode_compound_hdr(&xdr, &hdr);
4701 if (status)
4702 goto out;
4703 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4704 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004705 goto out;
4706 if ((status = decode_putrootfh(&xdr)) != 0)
4707 goto out;
4708 if ((status = decode_getfh(&xdr, res->fh)) == 0)
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004709 status = decode_getfattr(&xdr, res->fattr, res->server,
4710 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004711out:
4712 return status;
4713}
4714
4715/*
4716 * Decode REMOVE response
4717 */
Trond Myklebust4fdc17b2007-07-14 15:39:57 -04004718static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004719{
4720 struct xdr_stream xdr;
4721 struct compound_hdr hdr;
4722 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004723
Linus Torvalds1da177e2005-04-16 15:20:36 -07004724 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004725 status = decode_compound_hdr(&xdr, &hdr);
4726 if (status)
4727 goto out;
4728 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4729 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004730 goto out;
Trond Myklebust16e42952005-10-27 22:12:44 -04004731 if ((status = decode_putfh(&xdr)) != 0)
4732 goto out;
4733 if ((status = decode_remove(&xdr, &res->cinfo)) != 0)
4734 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004735 decode_getfattr(&xdr, &res->dir_attr, res->server,
4736 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004737out:
4738 return status;
4739}
4740
4741/*
4742 * Decode RENAME response
4743 */
Al Viro8687b632006-10-19 23:28:48 -07004744static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004745{
4746 struct xdr_stream xdr;
4747 struct compound_hdr hdr;
4748 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004749
Linus Torvalds1da177e2005-04-16 15:20:36 -07004750 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004751 status = decode_compound_hdr(&xdr, &hdr);
4752 if (status)
4753 goto out;
4754 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4755 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004756 goto out;
4757 if ((status = decode_putfh(&xdr)) != 0)
4758 goto out;
4759 if ((status = decode_savefh(&xdr)) != 0)
4760 goto out;
4761 if ((status = decode_putfh(&xdr)) != 0)
4762 goto out;
Trond Myklebust6caf2c82005-10-27 22:12:43 -04004763 if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0)
4764 goto out;
4765 /* Current FH is target directory */
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004766 if (decode_getfattr(&xdr, res->new_fattr, res->server,
4767 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
Trond Myklebust6caf2c82005-10-27 22:12:43 -04004768 goto out;
4769 if ((status = decode_restorefh(&xdr)) != 0)
4770 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004771 decode_getfattr(&xdr, res->old_fattr, res->server,
4772 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004773out:
4774 return status;
4775}
4776
4777/*
4778 * Decode LINK response
4779 */
Al Viro8687b632006-10-19 23:28:48 -07004780static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004781{
4782 struct xdr_stream xdr;
4783 struct compound_hdr hdr;
4784 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004785
Linus Torvalds1da177e2005-04-16 15:20:36 -07004786 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004787 status = decode_compound_hdr(&xdr, &hdr);
4788 if (status)
4789 goto out;
4790 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4791 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004792 goto out;
4793 if ((status = decode_putfh(&xdr)) != 0)
4794 goto out;
4795 if ((status = decode_savefh(&xdr)) != 0)
4796 goto out;
4797 if ((status = decode_putfh(&xdr)) != 0)
4798 goto out;
Trond Myklebust91ba2ee2005-10-27 22:12:42 -04004799 if ((status = decode_link(&xdr, &res->cinfo)) != 0)
4800 goto out;
4801 /*
4802 * Note order: OP_LINK leaves the directory as the current
4803 * filehandle.
4804 */
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004805 if (decode_getfattr(&xdr, res->dir_attr, res->server,
4806 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
Trond Myklebust91ba2ee2005-10-27 22:12:42 -04004807 goto out;
4808 if ((status = decode_restorefh(&xdr)) != 0)
4809 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004810 decode_getfattr(&xdr, res->fattr, res->server,
4811 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004812out:
4813 return status;
4814}
4815
4816/*
4817 * Decode CREATE response
4818 */
Al Viro8687b632006-10-19 23:28:48 -07004819static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004820{
4821 struct xdr_stream xdr;
4822 struct compound_hdr hdr;
4823 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004824
Linus Torvalds1da177e2005-04-16 15:20:36 -07004825 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004826 status = decode_compound_hdr(&xdr, &hdr);
4827 if (status)
4828 goto out;
4829 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4830 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004831 goto out;
4832 if ((status = decode_putfh(&xdr)) != 0)
4833 goto out;
Trond Myklebust56ae19f2005-10-27 22:12:40 -04004834 if ((status = decode_savefh(&xdr)) != 0)
4835 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004836 if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0)
4837 goto out;
4838 if ((status = decode_getfh(&xdr, res->fh)) != 0)
4839 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004840 if (decode_getfattr(&xdr, res->fattr, res->server,
4841 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04004842 goto out;
4843 if ((status = decode_restorefh(&xdr)) != 0)
4844 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004845 decode_getfattr(&xdr, res->dir_fattr, res->server,
4846 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004847out:
4848 return status;
4849}
4850
4851/*
4852 * Decode SYMLINK response
4853 */
Al Viro8687b632006-10-19 23:28:48 -07004854static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004855{
4856 return nfs4_xdr_dec_create(rqstp, p, res);
4857}
4858
4859/*
4860 * Decode GETATTR response
4861 */
Al Viro8687b632006-10-19 23:28:48 -07004862static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004863{
4864 struct xdr_stream xdr;
4865 struct compound_hdr hdr;
4866 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004867
Linus Torvalds1da177e2005-04-16 15:20:36 -07004868 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4869 status = decode_compound_hdr(&xdr, &hdr);
4870 if (status)
4871 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004872 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4873 if (status)
4874 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004875 status = decode_putfh(&xdr);
4876 if (status)
4877 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004878 status = decode_getfattr(&xdr, res->fattr, res->server,
4879 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004880out:
4881 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004882}
4883
J. Bruce Fields23ec6962005-06-22 17:16:22 +00004884/*
4885 * Encode an SETACL request
4886 */
4887static int
Al Viro8687b632006-10-19 23:28:48 -07004888nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args)
J. Bruce Fields23ec6962005-06-22 17:16:22 +00004889{
Andy Adamson05d564f2008-12-23 16:06:15 -05004890 struct xdr_stream xdr;
4891 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04004892 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Andy Adamson05d564f2008-12-23 16:06:15 -05004893 };
4894 int status;
J. Bruce Fields23ec6962005-06-22 17:16:22 +00004895
Andy Adamson05d564f2008-12-23 16:06:15 -05004896 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
Benny Halevy0c4e8c12009-04-01 09:22:07 -04004897 encode_compound_hdr(&xdr, req, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004898 encode_sequence(&xdr, &args->seq_args, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05004899 encode_putfh(&xdr, args->fh, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05004900 status = encode_setacl(&xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05004901 encode_nops(&hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05004902 return status;
J. Bruce Fields23ec6962005-06-22 17:16:22 +00004903}
Andy Adamson05d564f2008-12-23 16:06:15 -05004904
J. Bruce Fields23ec6962005-06-22 17:16:22 +00004905/*
4906 * Decode SETACL response
4907 */
4908static int
Benny Halevy73c403a2009-04-01 09:22:01 -04004909nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p,
4910 struct nfs_setaclres *res)
J. Bruce Fields23ec6962005-06-22 17:16:22 +00004911{
4912 struct xdr_stream xdr;
4913 struct compound_hdr hdr;
4914 int status;
4915
4916 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4917 status = decode_compound_hdr(&xdr, &hdr);
4918 if (status)
4919 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004920 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4921 if (status)
4922 goto out;
J. Bruce Fields23ec6962005-06-22 17:16:22 +00004923 status = decode_putfh(&xdr);
4924 if (status)
4925 goto out;
Benny Halevy9e9ecc02009-04-01 09:22:00 -04004926 status = decode_setattr(&xdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00004927out:
4928 return status;
4929}
Linus Torvalds1da177e2005-04-16 15:20:36 -07004930
4931/*
J. Bruce Fields029d1052005-06-22 17:16:22 +00004932 * Decode GETACL response
4933 */
4934static int
Benny Halevy663c79b2009-04-01 09:21:59 -04004935nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p,
4936 struct nfs_getaclres *res)
J. Bruce Fields029d1052005-06-22 17:16:22 +00004937{
4938 struct xdr_stream xdr;
4939 struct compound_hdr hdr;
4940 int status;
4941
4942 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4943 status = decode_compound_hdr(&xdr, &hdr);
4944 if (status)
4945 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004946 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4947 if (status)
4948 goto out;
J. Bruce Fields029d1052005-06-22 17:16:22 +00004949 status = decode_putfh(&xdr);
4950 if (status)
4951 goto out;
Benny Halevy663c79b2009-04-01 09:21:59 -04004952 status = decode_getacl(&xdr, rqstp, &res->acl_len);
J. Bruce Fields029d1052005-06-22 17:16:22 +00004953
4954out:
4955 return status;
4956}
4957
4958/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07004959 * Decode CLOSE response
4960 */
Al Viro8687b632006-10-19 23:28:48 -07004961static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004962{
Andy Adamson05d564f2008-12-23 16:06:15 -05004963 struct xdr_stream xdr;
4964 struct compound_hdr hdr;
4965 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004966
Andy Adamson05d564f2008-12-23 16:06:15 -05004967 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4968 status = decode_compound_hdr(&xdr, &hdr);
4969 if (status)
4970 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04004971 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4972 if (status)
4973 goto out;
Andy Adamson05d564f2008-12-23 16:06:15 -05004974 status = decode_putfh(&xdr);
4975 if (status)
4976 goto out;
4977 status = decode_close(&xdr, res);
Trond Myklebust516a6af2005-10-27 22:12:41 -04004978 if (status != 0)
4979 goto out;
4980 /*
4981 * Note: Server may do delete on close for this file
4982 * in which case the getattr call will fail with
4983 * an ESTALE error. Shouldn't be a problem,
4984 * though, since fattr->valid will remain unset.
4985 */
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004986 decode_getfattr(&xdr, res->fattr, res->server,
4987 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07004988out:
Andy Adamson05d564f2008-12-23 16:06:15 -05004989 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004990}
4991
4992/*
4993 * Decode OPEN response
4994 */
Al Viro8687b632006-10-19 23:28:48 -07004995static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004996{
Andy Adamson05d564f2008-12-23 16:06:15 -05004997 struct xdr_stream xdr;
4998 struct compound_hdr hdr;
4999 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005000
Andy Adamson05d564f2008-12-23 16:06:15 -05005001 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5002 status = decode_compound_hdr(&xdr, &hdr);
Trond Myklebust56ae19f2005-10-27 22:12:40 -04005003 if (status)
5004 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005005 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5006 if (status)
5007 goto out;
Andy Adamson05d564f2008-12-23 16:06:15 -05005008 status = decode_putfh(&xdr);
5009 if (status)
5010 goto out;
5011 status = decode_savefh(&xdr);
5012 if (status)
5013 goto out;
5014 status = decode_open(&xdr, res);
5015 if (status)
5016 goto out;
Trond Myklebust99367812007-07-17 21:52:41 -04005017 if (decode_getfh(&xdr, &res->fh) != 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005018 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005019 if (decode_getfattr(&xdr, res->f_attr, res->server,
5020 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04005021 goto out;
Trond Myklebust365c8f52007-07-17 21:52:37 -04005022 if (decode_restorefh(&xdr) != 0)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04005023 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005024 decode_getfattr(&xdr, res->dir_attr, res->server,
5025 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005026out:
Andy Adamson05d564f2008-12-23 16:06:15 -05005027 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005028}
5029
5030/*
5031 * Decode OPEN_CONFIRM response
5032 */
Al Viro8687b632006-10-19 23:28:48 -07005033static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005034{
Andy Adamson05d564f2008-12-23 16:06:15 -05005035 struct xdr_stream xdr;
5036 struct compound_hdr hdr;
5037 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005038
Andy Adamson05d564f2008-12-23 16:06:15 -05005039 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5040 status = decode_compound_hdr(&xdr, &hdr);
5041 if (status)
5042 goto out;
5043 status = decode_putfh(&xdr);
5044 if (status)
5045 goto out;
5046 status = decode_open_confirm(&xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005047out:
Andy Adamson05d564f2008-12-23 16:06:15 -05005048 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005049}
5050
5051/*
5052 * Decode OPEN response
5053 */
Al Viro8687b632006-10-19 23:28:48 -07005054static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005055{
Andy Adamson05d564f2008-12-23 16:06:15 -05005056 struct xdr_stream xdr;
5057 struct compound_hdr hdr;
5058 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005059
Andy Adamson05d564f2008-12-23 16:06:15 -05005060 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5061 status = decode_compound_hdr(&xdr, &hdr);
5062 if (status)
5063 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005064 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5065 if (status)
5066 goto out;
Andy Adamson05d564f2008-12-23 16:06:15 -05005067 status = decode_putfh(&xdr);
5068 if (status)
5069 goto out;
5070 status = decode_open(&xdr, res);
5071 if (status)
5072 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005073 decode_getfattr(&xdr, res->f_attr, res->server,
5074 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005075out:
Andy Adamson05d564f2008-12-23 16:06:15 -05005076 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005077}
5078
5079/*
5080 * Decode SETATTR response
5081 */
Al Viro8687b632006-10-19 23:28:48 -07005082static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005083{
Andy Adamson05d564f2008-12-23 16:06:15 -05005084 struct xdr_stream xdr;
5085 struct compound_hdr hdr;
5086 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005087
Andy Adamson05d564f2008-12-23 16:06:15 -05005088 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5089 status = decode_compound_hdr(&xdr, &hdr);
5090 if (status)
5091 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005092 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5093 if (status)
5094 goto out;
Andy Adamson05d564f2008-12-23 16:06:15 -05005095 status = decode_putfh(&xdr);
5096 if (status)
5097 goto out;
Benny Halevy9e9ecc02009-04-01 09:22:00 -04005098 status = decode_setattr(&xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05005099 if (status)
5100 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005101 decode_getfattr(&xdr, res->fattr, res->server,
5102 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005103out:
Andy Adamson05d564f2008-12-23 16:06:15 -05005104 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005105}
5106
5107/*
5108 * Decode LOCK response
5109 */
Al Viro8687b632006-10-19 23:28:48 -07005110static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005111{
5112 struct xdr_stream xdr;
5113 struct compound_hdr hdr;
5114 int status;
5115
5116 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5117 status = decode_compound_hdr(&xdr, &hdr);
5118 if (status)
5119 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005120 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5121 if (status)
5122 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005123 status = decode_putfh(&xdr);
5124 if (status)
5125 goto out;
5126 status = decode_lock(&xdr, res);
5127out:
5128 return status;
5129}
5130
5131/*
5132 * Decode LOCKT response
5133 */
Al Viro8687b632006-10-19 23:28:48 -07005134static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005135{
5136 struct xdr_stream xdr;
5137 struct compound_hdr hdr;
5138 int status;
5139
5140 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5141 status = decode_compound_hdr(&xdr, &hdr);
5142 if (status)
5143 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005144 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5145 if (status)
5146 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005147 status = decode_putfh(&xdr);
5148 if (status)
5149 goto out;
5150 status = decode_lockt(&xdr, res);
5151out:
5152 return status;
5153}
5154
5155/*
5156 * Decode LOCKU response
5157 */
Al Viro8687b632006-10-19 23:28:48 -07005158static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005159{
5160 struct xdr_stream xdr;
5161 struct compound_hdr hdr;
5162 int status;
5163
5164 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;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005171 status = decode_putfh(&xdr);
5172 if (status)
5173 goto out;
5174 status = decode_locku(&xdr, res);
5175out:
5176 return status;
5177}
5178
5179/*
5180 * Decode READLINK response
5181 */
Benny Halevyf50c7002009-04-01 09:21:55 -04005182static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p,
5183 struct nfs4_readlink_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005184{
5185 struct xdr_stream xdr;
5186 struct compound_hdr hdr;
5187 int status;
5188
5189 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5190 status = decode_compound_hdr(&xdr, &hdr);
5191 if (status)
5192 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005193 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5194 if (status)
5195 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005196 status = decode_putfh(&xdr);
5197 if (status)
5198 goto out;
5199 status = decode_readlink(&xdr, rqstp);
5200out:
5201 return status;
5202}
5203
5204/*
5205 * Decode READDIR response
5206 */
Al Viro8687b632006-10-19 23:28:48 -07005207static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005208{
5209 struct xdr_stream xdr;
5210 struct compound_hdr hdr;
5211 int status;
5212
5213 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5214 status = decode_compound_hdr(&xdr, &hdr);
5215 if (status)
5216 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005217 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5218 if (status)
5219 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005220 status = decode_putfh(&xdr);
5221 if (status)
5222 goto out;
5223 status = decode_readdir(&xdr, rqstp, res);
5224out:
5225 return status;
5226}
5227
5228/*
5229 * Decode Read response
5230 */
Al Viro8687b632006-10-19 23:28:48 -07005231static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005232{
5233 struct xdr_stream xdr;
5234 struct compound_hdr hdr;
5235 int status;
5236
5237 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5238 status = decode_compound_hdr(&xdr, &hdr);
5239 if (status)
5240 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005241 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5242 if (status)
5243 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005244 status = decode_putfh(&xdr);
5245 if (status)
5246 goto out;
5247 status = decode_read(&xdr, rqstp, res);
5248 if (!status)
5249 status = res->count;
5250out:
5251 return status;
5252}
5253
5254/*
5255 * Decode WRITE response
5256 */
Al Viro8687b632006-10-19 23:28:48 -07005257static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005258{
5259 struct xdr_stream xdr;
5260 struct compound_hdr hdr;
5261 int status;
5262
5263 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5264 status = decode_compound_hdr(&xdr, &hdr);
5265 if (status)
5266 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005267 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5268 if (status)
5269 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005270 status = decode_putfh(&xdr);
5271 if (status)
5272 goto out;
5273 status = decode_write(&xdr, res);
Trond Myklebust4f9838c2005-10-27 22:12:44 -04005274 if (status)
5275 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005276 decode_getfattr(&xdr, res->fattr, res->server,
5277 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005278 if (!status)
5279 status = res->count;
5280out:
5281 return status;
5282}
5283
5284/*
5285 * Decode COMMIT response
5286 */
Al Viro8687b632006-10-19 23:28:48 -07005287static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005288{
5289 struct xdr_stream xdr;
5290 struct compound_hdr hdr;
5291 int status;
5292
5293 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5294 status = decode_compound_hdr(&xdr, &hdr);
5295 if (status)
5296 goto out;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005297 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5298 if (status)
5299 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005300 status = decode_putfh(&xdr);
5301 if (status)
5302 goto out;
5303 status = decode_commit(&xdr, res);
Trond Myklebust4f9838c2005-10-27 22:12:44 -04005304 if (status)
5305 goto out;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005306 decode_getfattr(&xdr, res->fattr, res->server,
5307 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005308out:
5309 return status;
5310}
5311
5312/*
5313 * FSINFO request
5314 */
Benny Halevy3dda5e42009-04-01 09:21:57 -04005315static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p,
5316 struct nfs4_fsinfo_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005317{
5318 struct xdr_stream xdr;
5319 struct compound_hdr hdr;
5320 int status;
5321
5322 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5323 status = decode_compound_hdr(&xdr, &hdr);
5324 if (!status)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005325 status = decode_sequence(&xdr, &res->seq_res, req);
5326 if (!status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005327 status = decode_putfh(&xdr);
5328 if (!status)
Benny Halevy3dda5e42009-04-01 09:21:57 -04005329 status = decode_fsinfo(&xdr, res->fsinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005330 return status;
5331}
5332
5333/*
5334 * PATHCONF request
5335 */
Benny Halevyd45b2982009-04-01 09:21:58 -04005336static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p,
5337 struct nfs4_pathconf_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005338{
5339 struct xdr_stream xdr;
5340 struct compound_hdr hdr;
5341 int status;
5342
5343 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5344 status = decode_compound_hdr(&xdr, &hdr);
5345 if (!status)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005346 status = decode_sequence(&xdr, &res->seq_res, req);
5347 if (!status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005348 status = decode_putfh(&xdr);
5349 if (!status)
Benny Halevyd45b2982009-04-01 09:21:58 -04005350 status = decode_pathconf(&xdr, res->pathconf);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005351 return status;
5352}
5353
5354/*
5355 * STATFS request
5356 */
Benny Halevy24ad1482009-04-01 09:21:56 -04005357static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p,
5358 struct nfs4_statfs_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005359{
5360 struct xdr_stream xdr;
5361 struct compound_hdr hdr;
5362 int status;
5363
5364 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5365 status = decode_compound_hdr(&xdr, &hdr);
5366 if (!status)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005367 status = decode_sequence(&xdr, &res->seq_res, req);
5368 if (!status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005369 status = decode_putfh(&xdr);
5370 if (!status)
Benny Halevy24ad1482009-04-01 09:21:56 -04005371 status = decode_statfs(&xdr, res->fsstat);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005372 return status;
5373}
5374
5375/*
5376 * GETATTR_BITMAP request
5377 */
Al Viro8687b632006-10-19 23:28:48 -07005378static 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 -07005379{
5380 struct xdr_stream xdr;
5381 struct compound_hdr hdr;
5382 int status;
5383
5384 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005385 status = decode_compound_hdr(&xdr, &hdr);
5386 if (status)
5387 goto out;
5388 status = decode_sequence(&xdr, &res->seq_res, req);
5389 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005390 goto out;
5391 if ((status = decode_putfh(&xdr)) != 0)
5392 goto out;
5393 status = decode_server_caps(&xdr, res);
5394out:
5395 return status;
5396}
5397
5398/*
5399 * Decode RENEW response
5400 */
Al Viro8687b632006-10-19 23:28:48 -07005401static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005402{
5403 struct xdr_stream xdr;
5404 struct compound_hdr hdr;
5405 int status;
5406
5407 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5408 status = decode_compound_hdr(&xdr, &hdr);
5409 if (!status)
5410 status = decode_renew(&xdr);
5411 return status;
5412}
5413
5414/*
5415 * a SETCLIENTID request
5416 */
Al Viro8687b632006-10-19 23:28:48 -07005417static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p,
David Howellsadfa6f92006-08-22 20:06:08 -04005418 struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005419{
5420 struct xdr_stream xdr;
5421 struct compound_hdr hdr;
5422 int status;
5423
5424 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5425 status = decode_compound_hdr(&xdr, &hdr);
5426 if (!status)
5427 status = decode_setclientid(&xdr, clp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005428 return status;
5429}
5430
5431/*
5432 * a SETCLIENTID_CONFIRM request
5433 */
Al Viro8687b632006-10-19 23:28:48 -07005434static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo)
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)
5443 status = decode_setclientid_confirm(&xdr);
5444 if (!status)
5445 status = decode_putrootfh(&xdr);
5446 if (!status)
5447 status = decode_fsinfo(&xdr, fsinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005448 return status;
5449}
5450
5451/*
5452 * DELEGRETURN request
5453 */
Al Viro8687b632006-10-19 23:28:48 -07005454static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *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, &rqstp->rq_rcv_buf, p);
5461 status = decode_compound_hdr(&xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005462 if (status)
5463 goto out;
5464 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5465 if (status)
Trond Myklebustfa178f22006-01-03 09:55:38 +01005466 goto out;
5467 status = decode_putfh(&xdr);
5468 if (status != 0)
5469 goto out;
5470 status = decode_delegreturn(&xdr);
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005471 decode_getfattr(&xdr, res->fattr, res->server,
5472 !RPC_IS_ASYNC(rqstp->rq_task));
Trond Myklebustfa178f22006-01-03 09:55:38 +01005473out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07005474 return status;
5475}
5476
Trond Myklebust683b57b2006-06-09 09:34:22 -04005477/*
5478 * FS_LOCATIONS request
5479 */
Benny Halevy22958462009-04-01 09:22:02 -04005480static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p,
5481 struct nfs4_fs_locations_res *res)
Trond Myklebust683b57b2006-06-09 09:34:22 -04005482{
5483 struct xdr_stream xdr;
5484 struct compound_hdr hdr;
5485 int status;
5486
5487 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5488 status = decode_compound_hdr(&xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005489 if (status)
5490 goto out;
5491 status = decode_sequence(&xdr, &res->seq_res, req);
5492 if (status)
Trond Myklebust683b57b2006-06-09 09:34:22 -04005493 goto out;
5494 if ((status = decode_putfh(&xdr)) != 0)
5495 goto out;
5496 if ((status = decode_lookup(&xdr)) != 0)
5497 goto out;
5498 xdr_enter_page(&xdr, PAGE_SIZE);
Benny Halevy22958462009-04-01 09:22:02 -04005499 status = decode_getfattr(&xdr, &res->fs_locations->fattr,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005500 res->fs_locations->server,
5501 !RPC_IS_ASYNC(req->rq_task));
Trond Myklebust683b57b2006-06-09 09:34:22 -04005502out:
5503 return status;
5504}
5505
Benny Halevy99fe60d2009-04-01 09:22:29 -04005506#if defined(CONFIG_NFS_V4_1)
5507/*
5508 * EXCHANGE_ID request
5509 */
5510static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p,
5511 void *res)
5512{
5513 struct xdr_stream xdr;
5514 struct compound_hdr hdr;
5515 int status;
5516
5517 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5518 status = decode_compound_hdr(&xdr, &hdr);
5519 if (!status)
5520 status = decode_exchange_id(&xdr, res);
5521 return status;
5522}
Andy Adamson2050f0c2009-04-01 09:22:30 -04005523
5524/*
Andy Adamsonfc931582009-04-01 09:22:31 -04005525 * a CREATE_SESSION request
5526 */
5527static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p,
5528 struct nfs41_create_session_res *res)
5529{
5530 struct xdr_stream xdr;
5531 struct compound_hdr hdr;
5532 int status;
5533
5534 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5535 status = decode_compound_hdr(&xdr, &hdr);
5536 if (!status)
5537 status = decode_create_session(&xdr, res);
5538 return status;
5539}
5540
5541/*
Andy Adamson0f3e66c2009-04-01 09:22:34 -04005542 * a DESTROY_SESSION request
5543 */
5544static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p,
5545 void *dummy)
5546{
5547 struct xdr_stream xdr;
5548 struct compound_hdr hdr;
5549 int status;
5550
5551 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5552 status = decode_compound_hdr(&xdr, &hdr);
5553 if (!status)
5554 status = decode_destroy_session(&xdr, dummy);
5555 return status;
5556}
5557
5558/*
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005559 * a SEQUENCE request
5560 */
5561static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p,
5562 struct nfs4_sequence_res *res)
5563{
5564 struct xdr_stream xdr;
5565 struct compound_hdr hdr;
5566 int status;
5567
5568 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5569 status = decode_compound_hdr(&xdr, &hdr);
5570 if (!status)
5571 status = decode_sequence(&xdr, res, rqstp);
5572 return status;
5573}
5574
5575/*
Andy Adamson2050f0c2009-04-01 09:22:30 -04005576 * a GET_LEASE_TIME request
5577 */
5578static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p,
5579 struct nfs4_get_lease_time_res *res)
5580{
5581 struct xdr_stream xdr;
5582 struct compound_hdr hdr;
5583 int status;
5584
5585 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5586 status = decode_compound_hdr(&xdr, &hdr);
5587 if (!status)
5588 status = decode_sequence(&xdr, &res->lr_seq_res, rqstp);
5589 if (!status)
5590 status = decode_putrootfh(&xdr);
5591 if (!status)
5592 status = decode_fsinfo(&xdr, res->lr_fsinfo);
5593 return status;
5594}
Benny Halevy99fe60d2009-04-01 09:22:29 -04005595#endif /* CONFIG_NFS_V4_1 */
5596
Al Viro0dbb4c62006-10-19 23:28:49 -07005597__be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005598{
5599 uint32_t bitmap[2] = {0};
5600 uint32_t len;
5601
5602 if (!*p++) {
5603 if (!*p)
5604 return ERR_PTR(-EAGAIN);
5605 entry->eof = 1;
5606 return ERR_PTR(-EBADCOOKIE);
5607 }
5608
5609 entry->prev_cookie = entry->cookie;
5610 p = xdr_decode_hyper(p, &entry->cookie);
5611 entry->len = ntohl(*p++);
5612 entry->name = (const char *) p;
5613 p += XDR_QUADLEN(entry->len);
5614
5615 /*
5616 * In case the server doesn't return an inode number,
5617 * we fake one here. (We don't use inode number 0,
5618 * since glibc seems to choke on it...)
5619 */
5620 entry->ino = 1;
5621
5622 len = ntohl(*p++); /* bitmap length */
5623 if (len-- > 0) {
5624 bitmap[0] = ntohl(*p++);
5625 if (len-- > 0) {
5626 bitmap[1] = ntohl(*p++);
5627 p += len;
5628 }
5629 }
5630 len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */
5631 if (len > 0) {
Manoj Naik97d312d2005-06-22 17:16:39 +00005632 if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) {
5633 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
5634 /* Ignore the return value of rdattr_error for now */
5635 p++;
5636 len--;
5637 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005638 if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID)
5639 xdr_decode_hyper(p, &entry->ino);
5640 else if (bitmap[0] == FATTR4_WORD0_FILEID)
5641 xdr_decode_hyper(p, &entry->ino);
5642 p += len;
5643 }
5644
5645 entry->eof = !p[0] && p[1];
5646 return p;
5647}
5648
5649/*
5650 * We need to translate between nfs status return values and
5651 * the local errno values which may not be the same.
5652 */
5653static struct {
5654 int stat;
5655 int errno;
5656} nfs_errtbl[] = {
5657 { NFS4_OK, 0 },
Benny Halevy856dff32008-03-31 17:39:06 +03005658 { NFS4ERR_PERM, -EPERM },
5659 { NFS4ERR_NOENT, -ENOENT },
5660 { NFS4ERR_IO, -errno_NFSERR_IO},
5661 { NFS4ERR_NXIO, -ENXIO },
5662 { NFS4ERR_ACCESS, -EACCES },
5663 { NFS4ERR_EXIST, -EEXIST },
5664 { NFS4ERR_XDEV, -EXDEV },
5665 { NFS4ERR_NOTDIR, -ENOTDIR },
5666 { NFS4ERR_ISDIR, -EISDIR },
5667 { NFS4ERR_INVAL, -EINVAL },
5668 { NFS4ERR_FBIG, -EFBIG },
5669 { NFS4ERR_NOSPC, -ENOSPC },
5670 { NFS4ERR_ROFS, -EROFS },
5671 { NFS4ERR_MLINK, -EMLINK },
5672 { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG },
5673 { NFS4ERR_NOTEMPTY, -ENOTEMPTY },
5674 { NFS4ERR_DQUOT, -EDQUOT },
5675 { NFS4ERR_STALE, -ESTALE },
5676 { NFS4ERR_BADHANDLE, -EBADHANDLE },
5677 { NFS4ERR_BADOWNER, -EINVAL },
5678 { NFS4ERR_BADNAME, -EINVAL },
5679 { NFS4ERR_BAD_COOKIE, -EBADCOOKIE },
5680 { NFS4ERR_NOTSUPP, -ENOTSUPP },
5681 { NFS4ERR_TOOSMALL, -ETOOSMALL },
5682 { NFS4ERR_SERVERFAULT, -ESERVERFAULT },
5683 { NFS4ERR_BADTYPE, -EBADTYPE },
5684 { NFS4ERR_LOCKED, -EAGAIN },
5685 { NFS4ERR_RESOURCE, -EREMOTEIO },
5686 { NFS4ERR_SYMLINK, -ELOOP },
5687 { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP },
5688 { NFS4ERR_DEADLOCK, -EDEADLK },
5689 { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs
Linus Torvalds1da177e2005-04-16 15:20:36 -07005690 * to be handled by a
5691 * middle-layer.
5692 */
Benny Halevy856dff32008-03-31 17:39:06 +03005693 { -1, -EIO }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005694};
5695
5696/*
5697 * Convert an NFS error code to a local one.
5698 * This one is used jointly by NFSv2 and NFSv3.
5699 */
5700static int
David Howells0a8ea432006-08-22 20:06:08 -04005701nfs4_stat_to_errno(int stat)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005702{
5703 int i;
5704 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
5705 if (nfs_errtbl[i].stat == stat)
5706 return nfs_errtbl[i].errno;
5707 }
5708 if (stat <= 10000 || stat > 10100) {
5709 /* The server is looney tunes. */
Benny Halevy856dff32008-03-31 17:39:06 +03005710 return -ESERVERFAULT;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005711 }
5712 /* If we cannot translate the error, the recovery routines should
5713 * handle it.
5714 * Note: remaining NFSv4 error codes have values > 10000, so should
5715 * not conflict with native Linux error codes.
5716 */
Benny Halevy856dff32008-03-31 17:39:06 +03005717 return -stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005718}
5719
Linus Torvalds1da177e2005-04-16 15:20:36 -07005720#define PROC(proc, argtype, restype) \
5721[NFSPROC4_CLNT_##proc] = { \
5722 .p_proc = NFSPROC4_COMPOUND, \
5723 .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \
5724 .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \
Chuck Lever2bea90d2007-03-29 16:47:53 -04005725 .p_arglen = NFS4_##argtype##_sz, \
5726 .p_replen = NFS4_##restype##_sz, \
Chuck Levercc0175c2006-03-20 13:44:22 -05005727 .p_statidx = NFSPROC4_CLNT_##proc, \
5728 .p_name = #proc, \
Andy Adamson05d564f2008-12-23 16:06:15 -05005729}
Linus Torvalds1da177e2005-04-16 15:20:36 -07005730
5731struct rpc_procinfo nfs4_procedures[] = {
5732 PROC(READ, enc_read, dec_read),
5733 PROC(WRITE, enc_write, dec_write),
5734 PROC(COMMIT, enc_commit, dec_commit),
5735 PROC(OPEN, enc_open, dec_open),
5736 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
5737 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
5738 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
5739 PROC(CLOSE, enc_close, dec_close),
5740 PROC(SETATTR, enc_setattr, dec_setattr),
5741 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
5742 PROC(RENEW, enc_renew, dec_renew),
5743 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
5744 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
5745 PROC(LOCK, enc_lock, dec_lock),
5746 PROC(LOCKT, enc_lockt, dec_lockt),
5747 PROC(LOCKU, enc_locku, dec_locku),
5748 PROC(ACCESS, enc_access, dec_access),
5749 PROC(GETATTR, enc_getattr, dec_getattr),
5750 PROC(LOOKUP, enc_lookup, dec_lookup),
5751 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
5752 PROC(REMOVE, enc_remove, dec_remove),
5753 PROC(RENAME, enc_rename, dec_rename),
5754 PROC(LINK, enc_link, dec_link),
5755 PROC(SYMLINK, enc_symlink, dec_symlink),
5756 PROC(CREATE, enc_create, dec_create),
5757 PROC(PATHCONF, enc_pathconf, dec_pathconf),
5758 PROC(STATFS, enc_statfs, dec_statfs),
5759 PROC(READLINK, enc_readlink, dec_readlink),
5760 PROC(READDIR, enc_readdir, dec_readdir),
5761 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
5762 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
J. Bruce Fields029d1052005-06-22 17:16:22 +00005763 PROC(GETACL, enc_getacl, dec_getacl),
J. Bruce Fields23ec6962005-06-22 17:16:22 +00005764 PROC(SETACL, enc_setacl, dec_setacl),
Trond Myklebust683b57b2006-06-09 09:34:22 -04005765 PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
Benny Halevy99fe60d2009-04-01 09:22:29 -04005766#if defined(CONFIG_NFS_V4_1)
5767 PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
Andy Adamsonfc931582009-04-01 09:22:31 -04005768 PROC(CREATE_SESSION, enc_create_session, dec_create_session),
Andy Adamson0f3e66c2009-04-01 09:22:34 -04005769 PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session),
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005770 PROC(SEQUENCE, enc_sequence, dec_sequence),
Andy Adamson2050f0c2009-04-01 09:22:30 -04005771 PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time),
Benny Halevy99fe60d2009-04-01 09:22:29 -04005772#endif /* CONFIG_NFS_V4_1 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07005773};
5774
5775struct rpc_version nfs_version4 = {
5776 .number = 4,
Tobias Klausere8c96f82006-03-24 03:15:34 -08005777 .nrprocs = ARRAY_SIZE(nfs4_procedures),
Linus Torvalds1da177e2005-04-16 15:20:36 -07005778 .procs = nfs4_procedures
5779};
5780
5781/*
5782 * Local variables:
5783 * c-basic-offset: 8
5784 * End:
5785 */