blob: 4633d405a94c6d0b15dee51b3fd23253429ba53c [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>
Linus Torvalds1da177e2005-04-16 15:20:36 -070041#include <linux/errno.h>
42#include <linux/string.h>
43#include <linux/in.h>
44#include <linux/pagemap.h>
45#include <linux/proc_fs.h>
46#include <linux/kdev_t.h>
47#include <linux/sunrpc/clnt.h>
Alexandros Batsakis2449ea22009-12-05 13:36:55 -050048#include <linux/sunrpc/msg_prot.h>
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +000049#include <linux/sunrpc/gss_api.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070050#include <linux/nfs.h>
51#include <linux/nfs4.h>
52#include <linux/nfs_fs.h>
53#include <linux/nfs_idmap.h>
Trond Myklebust4ce79712005-06-22 17:16:21 +000054#include "nfs4_fs.h"
Alexandros Batsakis4882ef72009-12-05 13:30:21 -050055#include "internal.h"
Andy Adamsonb1f69b72010-10-20 00:18:03 -040056#include "pnfs.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070057
58#define NFSDBG_FACILITY NFSDBG_XDR
59
60/* Mapping from NFS error code to "errno" error code. */
61#define errno_NFSERR_IO EIO
62
David Howells0a8ea432006-08-22 20:06:08 -040063static int nfs4_stat_to_errno(int);
Linus Torvalds1da177e2005-04-16 15:20:36 -070064
65/* NFSv4 COMPOUND tags are only wanted for debugging purposes */
66#ifdef DEBUG
67#define NFS4_MAXTAGLEN 20
68#else
69#define NFS4_MAXTAGLEN 0
70#endif
71
Andy Adamson6c0195a2008-12-23 16:06:15 -050072/* lock,open owner id:
Trond Myklebust9f958ab2007-07-02 13:58:33 -040073 * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -070074 */
Trond Myklebustd035c362010-12-21 10:45:27 -050075#define open_owner_id_maxsz (1 + 1 + 4)
76#define lock_owner_id_maxsz (1 + 1 + 4)
Trond Myklebust9104a552007-07-17 21:52:42 -040077#define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
Linus Torvalds1da177e2005-04-16 15:20:36 -070078#define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
79#define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
80#define op_encode_hdr_maxsz (1)
81#define op_decode_hdr_maxsz (2)
Trond Myklebust9104a552007-07-17 21:52:42 -040082#define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
83#define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
84#define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
85#define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
Linus Torvalds1da177e2005-04-16 15:20:36 -070086#define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
87 (NFS4_FHSIZE >> 2))
88#define decode_putfh_maxsz (op_decode_hdr_maxsz)
89#define encode_putrootfh_maxsz (op_encode_hdr_maxsz)
90#define decode_putrootfh_maxsz (op_decode_hdr_maxsz)
91#define encode_getfh_maxsz (op_encode_hdr_maxsz)
92#define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
93 ((3+NFS4_FHSIZE) >> 2))
Andy Adamsone5012d12011-07-11 17:17:42 -040094#define nfs4_fattr_bitmap_maxsz 4
J. Bruce Fields96928202005-06-22 17:16:22 +000095#define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -070096#define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
97#define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
Trond Myklebustbd625ba2007-07-08 18:38:23 -040098#define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
99#define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
J. Bruce Fields96928202005-06-22 17:16:22 +0000100/* This is based on getfattr, which uses the most attributes: */
101#define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
Trond Myklebustbd625ba2007-07-08 18:38:23 -0400102 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz))
J. Bruce Fields96928202005-06-22 17:16:22 +0000103#define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
104 nfs4_fattr_value_maxsz)
105#define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400106#define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
107 1 + 2 + 1 + \
108 nfs4_owner_maxsz + \
109 nfs4_group_maxsz + \
110 4 + 4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111#define encode_savefh_maxsz (op_encode_hdr_maxsz)
112#define decode_savefh_maxsz (op_decode_hdr_maxsz)
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400113#define encode_restorefh_maxsz (op_encode_hdr_maxsz)
114#define decode_restorefh_maxsz (op_decode_hdr_maxsz)
Fred Isaman2f42b5d2008-03-13 15:26:30 +0200115#define encode_fsinfo_maxsz (encode_getattr_maxsz)
Fred Isamandae100c2011-07-30 20:52:37 -0400116/* The 5 accounts for the PNFS attributes, and assumes that at most three
117 * layout types will be returned.
118 */
119#define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \
120 nfs4_fattr_bitmap_maxsz + 4 + 8 + 5)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121#define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
122#define decode_renew_maxsz (op_decode_hdr_maxsz)
123#define encode_setclientid_maxsz \
124 (op_encode_hdr_maxsz + \
Chuck Levercc38bac2007-12-10 14:56:54 -0500125 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
126 XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \
127 1 /* sc_prog */ + \
128 XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
129 XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
130 1) /* sc_cb_ident */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131#define decode_setclientid_maxsz \
132 (op_decode_hdr_maxsz + \
133 2 + \
134 1024) /* large value for CLID_INUSE */
135#define encode_setclientid_confirm_maxsz \
136 (op_encode_hdr_maxsz + \
137 3 + (NFS4_VERIFIER_SIZE >> 2))
138#define decode_setclientid_confirm_maxsz \
139 (op_decode_hdr_maxsz)
Trond Myklebuste6889622007-07-02 13:58:30 -0400140#define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
141#define decode_lookup_maxsz (op_decode_hdr_maxsz)
Trond Myklebust2cebf822007-07-02 13:57:28 -0400142#define encode_share_access_maxsz \
143 (2)
Alexandros Batsakis4882ef72009-12-05 13:30:21 -0500144#define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
Trond Myklebust2cebf822007-07-02 13:57:28 -0400145#define encode_opentype_maxsz (1 + encode_createmode_maxsz)
146#define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
147#define encode_open_maxsz (op_encode_hdr_maxsz + \
148 2 + encode_share_access_maxsz + 2 + \
149 open_owner_id_maxsz + \
150 encode_opentype_maxsz + \
151 encode_claim_null_maxsz)
152#define decode_ace_maxsz (3 + nfs4_owner_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400153#define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400154 decode_ace_maxsz)
155#define decode_change_info_maxsz (5)
156#define decode_open_maxsz (op_decode_hdr_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400157 decode_stateid_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400158 decode_change_info_maxsz + 1 + \
159 nfs4_fattr_bitmap_maxsz + \
160 decode_delegation_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400161#define encode_open_confirm_maxsz \
162 (op_encode_hdr_maxsz + \
163 encode_stateid_maxsz + 1)
164#define decode_open_confirm_maxsz \
165 (op_decode_hdr_maxsz + \
166 decode_stateid_maxsz)
167#define encode_open_downgrade_maxsz \
168 (op_encode_hdr_maxsz + \
169 encode_stateid_maxsz + 1 + \
170 encode_share_access_maxsz)
171#define decode_open_downgrade_maxsz \
172 (op_decode_hdr_maxsz + \
173 decode_stateid_maxsz)
174#define encode_close_maxsz (op_encode_hdr_maxsz + \
175 1 + encode_stateid_maxsz)
176#define decode_close_maxsz (op_decode_hdr_maxsz + \
177 decode_stateid_maxsz)
178#define encode_setattr_maxsz (op_encode_hdr_maxsz + \
179 encode_stateid_maxsz + \
180 encode_attrs_maxsz)
181#define decode_setattr_maxsz (op_decode_hdr_maxsz + \
182 nfs4_fattr_bitmap_maxsz)
183#define encode_read_maxsz (op_encode_hdr_maxsz + \
184 encode_stateid_maxsz + 3)
185#define decode_read_maxsz (op_decode_hdr_maxsz + 2)
186#define encode_readdir_maxsz (op_encode_hdr_maxsz + \
187 2 + encode_verifier_maxsz + 5)
188#define decode_readdir_maxsz (op_decode_hdr_maxsz + \
189 decode_verifier_maxsz)
190#define encode_readlink_maxsz (op_encode_hdr_maxsz)
191#define decode_readlink_maxsz (op_decode_hdr_maxsz + 1)
192#define encode_write_maxsz (op_encode_hdr_maxsz + \
193 encode_stateid_maxsz + 4)
194#define decode_write_maxsz (op_decode_hdr_maxsz + \
195 2 + decode_verifier_maxsz)
196#define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
197#define decode_commit_maxsz (op_decode_hdr_maxsz + \
198 decode_verifier_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199#define encode_remove_maxsz (op_encode_hdr_maxsz + \
200 nfs4_name_maxsz)
Benny Halevy6ce18392009-04-01 09:22:06 -0400201#define decode_remove_maxsz (op_decode_hdr_maxsz + \
202 decode_change_info_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203#define encode_rename_maxsz (op_encode_hdr_maxsz + \
204 2 * nfs4_name_maxsz)
Benny Halevy6ce18392009-04-01 09:22:06 -0400205#define decode_rename_maxsz (op_decode_hdr_maxsz + \
206 decode_change_info_maxsz + \
207 decode_change_info_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208#define encode_link_maxsz (op_encode_hdr_maxsz + \
209 nfs4_name_maxsz)
Benny Halevy6ce18392009-04-01 09:22:06 -0400210#define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
Trond Myklebustdaccbde2010-06-25 18:11:43 -0400211#define encode_lockowner_maxsz (7)
Trond Myklebust9104a552007-07-17 21:52:42 -0400212#define encode_lock_maxsz (op_encode_hdr_maxsz + \
213 7 + \
Trond Myklebustdaccbde2010-06-25 18:11:43 -0400214 1 + encode_stateid_maxsz + 1 + \
215 encode_lockowner_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400216#define decode_lock_denied_maxsz \
217 (8 + decode_lockowner_maxsz)
218#define decode_lock_maxsz (op_decode_hdr_maxsz + \
219 decode_lock_denied_maxsz)
Trond Myklebustdaccbde2010-06-25 18:11:43 -0400220#define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
221 encode_lockowner_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400222#define decode_lockt_maxsz (op_decode_hdr_maxsz + \
223 decode_lock_denied_maxsz)
224#define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
225 encode_stateid_maxsz + \
226 4)
227#define decode_locku_maxsz (op_decode_hdr_maxsz + \
228 decode_stateid_maxsz)
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -0400229#define encode_release_lockowner_maxsz \
230 (op_encode_hdr_maxsz + \
231 encode_lockowner_maxsz)
232#define decode_release_lockowner_maxsz \
233 (op_decode_hdr_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400234#define encode_access_maxsz (op_encode_hdr_maxsz + 1)
235#define decode_access_maxsz (op_decode_hdr_maxsz + 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236#define encode_symlink_maxsz (op_encode_hdr_maxsz + \
237 1 + nfs4_name_maxsz + \
Chuck Lever94a6d752006-08-22 20:06:23 -0400238 1 + \
J. Bruce Fields96928202005-06-22 17:16:22 +0000239 nfs4_fattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240#define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
241#define encode_create_maxsz (op_encode_hdr_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400242 1 + 2 + nfs4_name_maxsz + \
243 encode_attrs_maxsz)
Trond Myklebust2cebf822007-07-02 13:57:28 -0400244#define decode_create_maxsz (op_decode_hdr_maxsz + \
245 decode_change_info_maxsz + \
246 nfs4_fattr_bitmap_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400247#define encode_statfs_maxsz (encode_getattr_maxsz)
248#define decode_statfs_maxsz (decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249#define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
250#define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400251#define encode_getacl_maxsz (encode_getattr_maxsz)
252#define decode_getacl_maxsz (op_decode_hdr_maxsz + \
253 nfs4_fattr_bitmap_maxsz + 1)
254#define encode_setacl_maxsz (op_encode_hdr_maxsz + \
255 encode_stateid_maxsz + 3)
256#define decode_setacl_maxsz (decode_setattr_maxsz)
Trond Myklebuste6889622007-07-02 13:58:30 -0400257#define encode_fs_locations_maxsz \
258 (encode_getattr_maxsz)
259#define decode_fs_locations_maxsz \
260 (0)
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +0000261#define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
Bryan Schumaker1650add2011-06-02 15:07:35 -0400262#define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4))
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400263
264#if defined(CONFIG_NFS_V4_1)
Andy Adamsonfc931582009-04-01 09:22:31 -0400265#define NFS4_MAX_MACHINE_NAME_LEN (64)
266
Benny Halevy99fe60d2009-04-01 09:22:29 -0400267#define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
268 encode_verifier_maxsz + \
269 1 /* co_ownerid.len */ + \
270 XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \
271 1 /* flags */ + \
272 1 /* spa_how */ + \
273 0 /* SP4_NONE (for now) */ + \
274 1 /* zero implemetation id array */)
275#define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
276 2 /* eir_clientid */ + \
277 1 /* eir_sequenceid */ + \
278 1 /* eir_flags */ + \
279 1 /* spr_how */ + \
280 0 /* SP4_NONE (for now) */ + \
281 2 /* eir_server_owner.so_minor_id */ + \
282 /* eir_server_owner.so_major_id<> */ \
283 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
284 /* eir_server_scope<> */ \
285 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
286 1 /* eir_server_impl_id array length */ + \
287 0 /* ignored eir_server_impl_id contents */)
Andy Adamsonfc931582009-04-01 09:22:31 -0400288#define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
289#define decode_channel_attrs_maxsz (6 + \
290 1 /* ca_rdma_ird.len */ + \
291 1 /* ca_rdma_ird */)
292#define encode_create_session_maxsz (op_encode_hdr_maxsz + \
293 2 /* csa_clientid */ + \
294 1 /* csa_sequence */ + \
295 1 /* csa_flags */ + \
296 encode_channel_attrs_maxsz + \
297 encode_channel_attrs_maxsz + \
298 1 /* csa_cb_program */ + \
299 1 /* csa_sec_parms.len (1) */ + \
300 1 /* cb_secflavor (AUTH_SYS) */ + \
301 1 /* stamp */ + \
302 1 /* machinename.len */ + \
303 XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
304 1 /* uid */ + \
305 1 /* gid */ + \
306 1 /* gids.len (0) */)
307#define decode_create_session_maxsz (op_decode_hdr_maxsz + \
308 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
309 1 /* csr_sequence */ + \
310 1 /* csr_flags */ + \
311 decode_channel_attrs_maxsz + \
312 decode_channel_attrs_maxsz)
Andy Adamson0f3e66c2009-04-01 09:22:34 -0400313#define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
314#define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
Andy Adamsonfc01cea2009-04-01 09:22:36 -0400315#define encode_sequence_maxsz (op_encode_hdr_maxsz + \
316 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
317#define decode_sequence_maxsz (op_decode_hdr_maxsz + \
318 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
Ricardo Labiaga180197532009-12-05 16:08:40 -0500319#define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
320#define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
Andy Adamson7f11d8d2011-07-30 20:52:35 -0400321#define encode_getdevicelist_maxsz (op_encode_hdr_maxsz + 4 + \
322 encode_verifier_maxsz)
323#define decode_getdevicelist_maxsz (op_decode_hdr_maxsz + \
324 2 /* nfs_cookie4 gdlr_cookie */ + \
325 decode_verifier_maxsz \
326 /* verifier4 gdlr_verifier */ + \
327 1 /* gdlr_deviceid_list count */ + \
328 XDR_QUADLEN(NFS4_PNFS_GETDEVLIST_MAXNUM * \
329 NFS4_DEVICEID4_SIZE) \
330 /* gdlr_deviceid_list */ + \
331 1 /* bool gdlr_eof */)
Andy Adamsonb1f69b72010-10-20 00:18:03 -0400332#define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \
333 XDR_QUADLEN(NFS4_DEVICEID4_SIZE))
334#define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \
335 1 /* layout type */ + \
336 1 /* opaque devaddr4 length */ + \
337 /* devaddr4 payload is read into page */ \
338 1 /* notification bitmap length */ + \
339 1 /* notification bitmap */)
340#define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \
341 encode_stateid_maxsz)
342#define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \
343 decode_stateid_maxsz + \
344 XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE))
Andy Adamson863a3c62011-03-23 13:27:54 +0000345#define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \
346 2 /* offset */ + \
347 2 /* length */ + \
348 1 /* reclaim */ + \
349 encode_stateid_maxsz + \
350 1 /* new offset (true) */ + \
351 2 /* last byte written */ + \
352 1 /* nt_timechanged (false) */ + \
353 1 /* layoutupdate4 layout type */ + \
354 1 /* NULL filelayout layoutupdate4 payload */)
355#define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3)
Benny Halevycbe82602011-05-22 19:52:37 +0300356#define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \
357 encode_stateid_maxsz + \
358 1 /* FIXME: opaque lrf_body always empty at the moment */)
359#define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \
360 1 + decode_stateid_maxsz)
Bryan Schumakerfca78d62011-06-02 14:59:07 -0400361#define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1)
362#define decode_secinfo_no_name_maxsz decode_secinfo_maxsz
Bryan Schumaker7d974792011-06-02 14:59:08 -0400363#define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \
364 XDR_QUADLEN(NFS4_STATEID_SIZE))
365#define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1)
Bryan Schumaker9aeda352011-06-02 14:59:09 -0400366#define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \
367 XDR_QUADLEN(NFS4_STATEID_SIZE))
368#define decode_free_stateid_maxsz (op_decode_hdr_maxsz + 1)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400369#else /* CONFIG_NFS_V4_1 */
370#define encode_sequence_maxsz 0
371#define decode_sequence_maxsz 0
372#endif /* CONFIG_NFS_V4_1 */
373
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374#define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
375#define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
376#define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400377 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400379 encode_read_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380#define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400381 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400383 decode_read_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384#define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400385 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400387 encode_readlink_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388#define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400389 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400391 decode_readlink_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392#define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400393 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400395 encode_readdir_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396#define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400397 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400399 decode_readdir_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400#define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400401 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400403 encode_write_maxsz + \
Trond Myklebust4f9838c2005-10-27 22:12:44 -0400404 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405#define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400406 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400408 decode_write_maxsz + \
Trond Myklebust4f9838c2005-10-27 22:12:44 -0400409 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410#define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400411 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400413 encode_commit_maxsz + \
Trond Myklebust4f9838c2005-10-27 22:12:44 -0400414 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415#define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400416 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400418 decode_commit_maxsz + \
Trond Myklebust4f9838c2005-10-27 22:12:44 -0400419 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420#define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400421 encode_sequence_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400422 encode_putfh_maxsz + \
423 encode_savefh_maxsz + \
424 encode_open_maxsz + \
425 encode_getfh_maxsz + \
426 encode_getattr_maxsz + \
427 encode_restorefh_maxsz + \
428 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429#define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400430 decode_sequence_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400431 decode_putfh_maxsz + \
432 decode_savefh_maxsz + \
433 decode_open_maxsz + \
434 decode_getfh_maxsz + \
435 decode_getattr_maxsz + \
436 decode_restorefh_maxsz + \
437 decode_getattr_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400438#define NFS4_enc_open_confirm_sz \
439 (compound_encode_hdr_maxsz + \
440 encode_putfh_maxsz + \
441 encode_open_confirm_maxsz)
442#define NFS4_dec_open_confirm_sz \
443 (compound_decode_hdr_maxsz + \
444 decode_putfh_maxsz + \
445 decode_open_confirm_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446#define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400447 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448 encode_putfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400449 encode_open_maxsz + \
450 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451#define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400452 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 decode_putfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400454 decode_open_maxsz + \
455 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456#define NFS4_enc_open_downgrade_sz \
457 (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400458 encode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400459 encode_putfh_maxsz + \
460 encode_open_downgrade_maxsz + \
461 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462#define NFS4_dec_open_downgrade_sz \
463 (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400464 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400465 decode_putfh_maxsz + \
466 decode_open_downgrade_maxsz + \
467 decode_getattr_maxsz)
468#define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400469 encode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400470 encode_putfh_maxsz + \
471 encode_close_maxsz + \
472 encode_getattr_maxsz)
473#define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400474 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400475 decode_putfh_maxsz + \
476 decode_close_maxsz + \
477 decode_getattr_maxsz)
478#define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400479 encode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400480 encode_putfh_maxsz + \
481 encode_setattr_maxsz + \
482 encode_getattr_maxsz)
483#define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400484 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400485 decode_putfh_maxsz + \
486 decode_setattr_maxsz + \
487 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488#define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400489 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490 encode_putfh_maxsz + \
491 encode_fsinfo_maxsz)
492#define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400493 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494 decode_putfh_maxsz + \
495 decode_fsinfo_maxsz)
496#define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
497 encode_renew_maxsz)
498#define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
499 decode_renew_maxsz)
500#define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
501 encode_setclientid_maxsz)
502#define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
503 decode_setclientid_maxsz)
504#define NFS4_enc_setclientid_confirm_sz \
505 (compound_encode_hdr_maxsz + \
506 encode_setclientid_confirm_maxsz + \
507 encode_putrootfh_maxsz + \
508 encode_fsinfo_maxsz)
509#define NFS4_dec_setclientid_confirm_sz \
510 (compound_decode_hdr_maxsz + \
511 decode_setclientid_confirm_maxsz + \
512 decode_putrootfh_maxsz + \
513 decode_fsinfo_maxsz)
514#define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400515 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400517 encode_lock_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700518#define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400519 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400521 decode_lock_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522#define NFS4_enc_lockt_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 + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400525 encode_lockt_maxsz)
526#define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400527 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400528 decode_putfh_maxsz + \
529 decode_lockt_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530#define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400531 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700532 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400533 encode_locku_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700534#define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400535 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400537 decode_locku_maxsz)
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -0400538#define NFS4_enc_release_lockowner_sz \
539 (compound_encode_hdr_maxsz + \
540 encode_lockowner_maxsz)
541#define NFS4_dec_release_lockowner_sz \
542 (compound_decode_hdr_maxsz + \
543 decode_lockowner_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544#define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400545 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546 encode_putfh_maxsz + \
Trond Myklebust76b32992007-08-10 17:45:11 -0400547 encode_access_maxsz + \
548 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700549#define NFS4_dec_access_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 + \
Trond Myklebust76b32992007-08-10 17:45:11 -0400552 decode_access_maxsz + \
553 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700554#define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400555 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700556 encode_putfh_maxsz + \
557 encode_getattr_maxsz)
558#define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400559 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560 decode_putfh_maxsz + \
561 decode_getattr_maxsz)
562#define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400563 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564 encode_putfh_maxsz + \
565 encode_lookup_maxsz + \
566 encode_getattr_maxsz + \
567 encode_getfh_maxsz)
568#define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400569 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570 decode_putfh_maxsz + \
Trond Myklebuste6889622007-07-02 13:58:30 -0400571 decode_lookup_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572 decode_getattr_maxsz + \
573 decode_getfh_maxsz)
574#define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400575 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576 encode_putrootfh_maxsz + \
577 encode_getattr_maxsz + \
578 encode_getfh_maxsz)
579#define NFS4_dec_lookup_root_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_putrootfh_maxsz + \
582 decode_getattr_maxsz + \
583 decode_getfh_maxsz)
584#define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400585 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586 encode_putfh_maxsz + \
Trond Myklebust16e42952005-10-27 22:12:44 -0400587 encode_remove_maxsz + \
588 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589#define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400590 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700591 decode_putfh_maxsz + \
Benny Halevy6ce18392009-04-01 09:22:06 -0400592 decode_remove_maxsz + \
Trond Myklebust16e42952005-10-27 22:12:44 -0400593 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700594#define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400595 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596 encode_putfh_maxsz + \
597 encode_savefh_maxsz + \
598 encode_putfh_maxsz + \
Trond Myklebust6caf2c82005-10-27 22:12:43 -0400599 encode_rename_maxsz + \
600 encode_getattr_maxsz + \
601 encode_restorefh_maxsz + \
602 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603#define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400604 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700605 decode_putfh_maxsz + \
606 decode_savefh_maxsz + \
607 decode_putfh_maxsz + \
Trond Myklebust6caf2c82005-10-27 22:12:43 -0400608 decode_rename_maxsz + \
609 decode_getattr_maxsz + \
610 decode_restorefh_maxsz + \
611 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700612#define NFS4_enc_link_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 + \
615 encode_savefh_maxsz + \
616 encode_putfh_maxsz + \
Trond Myklebust91ba2ee2005-10-27 22:12:42 -0400617 encode_link_maxsz + \
618 decode_getattr_maxsz + \
619 encode_restorefh_maxsz + \
620 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621#define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400622 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623 decode_putfh_maxsz + \
624 decode_savefh_maxsz + \
625 decode_putfh_maxsz + \
Trond Myklebust91ba2ee2005-10-27 22:12:42 -0400626 decode_link_maxsz + \
627 decode_getattr_maxsz + \
628 decode_restorefh_maxsz + \
629 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700630#define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400631 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632 encode_putfh_maxsz + \
633 encode_symlink_maxsz + \
634 encode_getattr_maxsz + \
635 encode_getfh_maxsz)
636#define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400637 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700638 decode_putfh_maxsz + \
639 decode_symlink_maxsz + \
640 decode_getattr_maxsz + \
641 decode_getfh_maxsz)
642#define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400643 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644 encode_putfh_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400645 encode_savefh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700646 encode_create_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400647 encode_getfh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648 encode_getattr_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400649 encode_restorefh_maxsz + \
650 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651#define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400652 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653 decode_putfh_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400654 decode_savefh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655 decode_create_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400656 decode_getfh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657 decode_getattr_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400658 decode_restorefh_maxsz + \
659 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700660#define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400661 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700662 encode_putfh_maxsz + \
663 encode_getattr_maxsz)
664#define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400665 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666 decode_putfh_maxsz + \
667 decode_getattr_maxsz)
668#define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400669 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400671 encode_statfs_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700672#define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400673 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400675 decode_statfs_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676#define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400677 encode_sequence_maxsz + \
Trond Myklebustab91f262007-02-02 14:47:17 -0800678 encode_putfh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679 encode_getattr_maxsz)
680#define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400681 decode_sequence_maxsz + \
Trond Myklebustab91f262007-02-02 14:47:17 -0800682 decode_putfh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683 decode_getattr_maxsz)
684#define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400685 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686 encode_putfh_maxsz + \
Trond Myklebustfa178f22006-01-03 09:55:38 +0100687 encode_delegreturn_maxsz + \
688 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689#define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400690 decode_sequence_maxsz + \
Trond Myklebustfa178f22006-01-03 09:55:38 +0100691 decode_delegreturn_maxsz + \
692 decode_getattr_maxsz)
J. Bruce Fields029d1052005-06-22 17:16:22 +0000693#define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400694 encode_sequence_maxsz + \
J. Bruce Fields029d1052005-06-22 17:16:22 +0000695 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400696 encode_getacl_maxsz)
J. Bruce Fields029d1052005-06-22 17:16:22 +0000697#define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400698 decode_sequence_maxsz + \
J. Bruce Fields029d1052005-06-22 17:16:22 +0000699 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400700 decode_getacl_maxsz)
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000701#define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400702 encode_sequence_maxsz + \
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000703 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400704 encode_setacl_maxsz)
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000705#define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400706 decode_sequence_maxsz + \
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000707 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400708 decode_setacl_maxsz)
Trond Myklebust683b57b2006-06-09 09:34:22 -0400709#define NFS4_enc_fs_locations_sz \
710 (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400711 encode_sequence_maxsz + \
Trond Myklebust683b57b2006-06-09 09:34:22 -0400712 encode_putfh_maxsz + \
Trond Myklebuste6889622007-07-02 13:58:30 -0400713 encode_lookup_maxsz + \
714 encode_fs_locations_maxsz)
Trond Myklebust683b57b2006-06-09 09:34:22 -0400715#define NFS4_dec_fs_locations_sz \
716 (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400717 decode_sequence_maxsz + \
Trond Myklebust683b57b2006-06-09 09:34:22 -0400718 decode_putfh_maxsz + \
Trond Myklebuste6889622007-07-02 13:58:30 -0400719 decode_lookup_maxsz + \
720 decode_fs_locations_maxsz)
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +0000721#define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \
722 encode_sequence_maxsz + \
723 encode_putfh_maxsz + \
724 encode_secinfo_maxsz)
725#define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \
726 decode_sequence_maxsz + \
727 decode_putfh_maxsz + \
728 decode_secinfo_maxsz)
Benny Halevy99fe60d2009-04-01 09:22:29 -0400729#if defined(CONFIG_NFS_V4_1)
730#define NFS4_enc_exchange_id_sz \
731 (compound_encode_hdr_maxsz + \
732 encode_exchange_id_maxsz)
733#define NFS4_dec_exchange_id_sz \
734 (compound_decode_hdr_maxsz + \
735 decode_exchange_id_maxsz)
Andy Adamsonfc931582009-04-01 09:22:31 -0400736#define NFS4_enc_create_session_sz \
737 (compound_encode_hdr_maxsz + \
738 encode_create_session_maxsz)
739#define NFS4_dec_create_session_sz \
740 (compound_decode_hdr_maxsz + \
741 decode_create_session_maxsz)
Andy Adamson0f3e66c2009-04-01 09:22:34 -0400742#define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
743 encode_destroy_session_maxsz)
744#define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
745 decode_destroy_session_maxsz)
Andy Adamsonfc01cea2009-04-01 09:22:36 -0400746#define NFS4_enc_sequence_sz \
747 (compound_decode_hdr_maxsz + \
748 encode_sequence_maxsz)
749#define NFS4_dec_sequence_sz \
750 (compound_decode_hdr_maxsz + \
751 decode_sequence_maxsz)
Andy Adamson2050f0c2009-04-01 09:22:30 -0400752#define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
753 encode_sequence_maxsz + \
754 encode_putrootfh_maxsz + \
755 encode_fsinfo_maxsz)
756#define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
757 decode_sequence_maxsz + \
758 decode_putrootfh_maxsz + \
759 decode_fsinfo_maxsz)
Ricardo Labiaga180197532009-12-05 16:08:40 -0500760#define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
761 encode_sequence_maxsz + \
762 encode_reclaim_complete_maxsz)
763#define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
764 decode_sequence_maxsz + \
765 decode_reclaim_complete_maxsz)
Andy Adamson7f11d8d2011-07-30 20:52:35 -0400766#define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \
767 encode_sequence_maxsz + \
768 encode_putfh_maxsz + \
769 encode_getdevicelist_maxsz)
770#define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \
771 decode_sequence_maxsz + \
772 decode_putfh_maxsz + \
773 decode_getdevicelist_maxsz)
Andy Adamsonb1f69b72010-10-20 00:18:03 -0400774#define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \
775 encode_sequence_maxsz +\
776 encode_getdeviceinfo_maxsz)
777#define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \
778 decode_sequence_maxsz + \
779 decode_getdeviceinfo_maxsz)
780#define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \
781 encode_sequence_maxsz + \
782 encode_putfh_maxsz + \
783 encode_layoutget_maxsz)
784#define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \
785 decode_sequence_maxsz + \
786 decode_putfh_maxsz + \
787 decode_layoutget_maxsz)
Andy Adamson863a3c62011-03-23 13:27:54 +0000788#define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \
789 encode_sequence_maxsz +\
790 encode_putfh_maxsz + \
791 encode_layoutcommit_maxsz + \
792 encode_getattr_maxsz)
793#define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \
794 decode_sequence_maxsz + \
795 decode_putfh_maxsz + \
796 decode_layoutcommit_maxsz + \
797 decode_getattr_maxsz)
Benny Halevycbe82602011-05-22 19:52:37 +0300798#define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \
799 encode_sequence_maxsz + \
800 encode_putfh_maxsz + \
801 encode_layoutreturn_maxsz)
802#define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \
803 decode_sequence_maxsz + \
804 decode_putfh_maxsz + \
805 decode_layoutreturn_maxsz)
Bryan Schumakerfca78d62011-06-02 14:59:07 -0400806#define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \
807 encode_sequence_maxsz + \
808 encode_putrootfh_maxsz +\
809 encode_secinfo_no_name_maxsz)
810#define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \
811 decode_sequence_maxsz + \
812 decode_putrootfh_maxsz + \
813 decode_secinfo_no_name_maxsz)
Bryan Schumaker7d974792011-06-02 14:59:08 -0400814#define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \
815 encode_sequence_maxsz + \
816 encode_test_stateid_maxsz)
817#define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \
818 decode_sequence_maxsz + \
819 decode_test_stateid_maxsz)
Bryan Schumaker9aeda352011-06-02 14:59:09 -0400820#define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \
821 encode_sequence_maxsz + \
822 encode_free_stateid_maxsz)
823#define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \
824 decode_sequence_maxsz + \
825 decode_free_stateid_maxsz)
Alexandros Batsakis2449ea22009-12-05 13:36:55 -0500826
827const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
828 compound_encode_hdr_maxsz +
829 encode_sequence_maxsz +
830 encode_putfh_maxsz +
831 encode_getattr_maxsz) *
832 XDR_UNIT);
833
834const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
835 compound_decode_hdr_maxsz +
836 decode_sequence_maxsz +
837 decode_putfh_maxsz) *
838 XDR_UNIT);
Benny Halevy99fe60d2009-04-01 09:22:29 -0400839#endif /* CONFIG_NFS_V4_1 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840
Trond Myklebustbca79472009-03-11 14:10:26 -0400841static const umode_t nfs_type2fmt[] = {
842 [NF4BAD] = 0,
843 [NF4REG] = S_IFREG,
844 [NF4DIR] = S_IFDIR,
845 [NF4BLK] = S_IFBLK,
846 [NF4CHR] = S_IFCHR,
847 [NF4LNK] = S_IFLNK,
848 [NF4SOCK] = S_IFSOCK,
849 [NF4FIFO] = S_IFIFO,
850 [NF4ATTRDIR] = 0,
851 [NF4NAMEDATTR] = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852};
853
854struct compound_hdr {
855 int32_t status;
856 uint32_t nops;
Andy Adamsond0179312008-12-23 16:06:17 -0500857 __be32 * nops_p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858 uint32_t taglen;
859 char * tag;
Benny Halevy0c4e8c12009-04-01 09:22:07 -0400860 uint32_t replen; /* expected reply words */
Benny Halevy66cc0422009-04-01 09:22:10 -0400861 u32 minorversion;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700862};
863
Benny Halevy13c65ce2009-08-14 17:19:25 +0300864static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes)
865{
866 __be32 *p = xdr_reserve_space(xdr, nbytes);
867 BUG_ON(!p);
868 return p;
869}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870
871static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
872{
Al Viro8687b632006-10-19 23:28:48 -0700873 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874
875 p = xdr_reserve_space(xdr, 4 + len);
876 BUG_ON(p == NULL);
877 xdr_encode_opaque(p, str, len);
878}
879
Benny Halevy0c4e8c12009-04-01 09:22:07 -0400880static void encode_compound_hdr(struct xdr_stream *xdr,
881 struct rpc_rqst *req,
882 struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883{
Al Viro8687b632006-10-19 23:28:48 -0700884 __be32 *p;
Trond Myklebusta17c2152010-07-31 14:29:08 -0400885 struct rpc_auth *auth = req->rq_cred->cr_auth;
Benny Halevy0c4e8c12009-04-01 09:22:07 -0400886
887 /* initialize running count of expected bytes in reply.
888 * NOTE: the replied tag SHOULD be the same is the one sent,
889 * but this is not required as a MUST for the server to do so. */
890 hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700891
892 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag);
893 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN);
Benny Halevy811652b2009-08-14 17:19:34 +0300894 p = reserve_space(xdr, 4 + hdr->taglen + 8);
895 p = xdr_encode_opaque(p, hdr->tag, hdr->taglen);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300896 *p++ = cpu_to_be32(hdr->minorversion);
Andy Adamsond0179312008-12-23 16:06:17 -0500897 hdr->nops_p = p;
Benny Halevy34558512009-08-14 17:19:30 +0300898 *p = cpu_to_be32(hdr->nops);
Andy Adamsond0179312008-12-23 16:06:17 -0500899}
900
901static void encode_nops(struct compound_hdr *hdr)
902{
Andy Adamsonfc931582009-04-01 09:22:31 -0400903 BUG_ON(hdr->nops > NFS4_MAX_OPS);
Andy Adamsond0179312008-12-23 16:06:17 -0500904 *hdr->nops_p = htonl(hdr->nops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700905}
906
907static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
908{
Al Viro8687b632006-10-19 23:28:48 -0700909 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700910
911 p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE);
912 BUG_ON(p == NULL);
913 xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE);
914}
915
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -0500916static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917{
918 char owner_name[IDMAP_NAMESZ];
919 char owner_group[IDMAP_NAMESZ];
920 int owner_namelen = 0;
921 int owner_grouplen = 0;
Al Viro8687b632006-10-19 23:28:48 -0700922 __be32 *p;
923 __be32 *q;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700924 int len;
925 uint32_t bmval0 = 0;
926 uint32_t bmval1 = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700927
928 /*
929 * We reserve enough space to write the entire attribute buffer at once.
930 * In the worst-case, this would be
931 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
932 * = 36 bytes, plus any contribution from variable-length fields
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000933 * such as owner/group.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934 */
935 len = 16;
936
937 /* Sigh */
938 if (iap->ia_valid & ATTR_SIZE)
939 len += 8;
940 if (iap->ia_valid & ATTR_MODE)
941 len += 4;
942 if (iap->ia_valid & ATTR_UID) {
Trond Myklebuste4fd72a2011-02-22 15:44:31 -0800943 owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944 if (owner_namelen < 0) {
Chuck Leverfe82a182007-09-11 18:01:10 -0400945 dprintk("nfs: couldn't resolve uid %d to string\n",
946 iap->ia_uid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947 /* XXX */
948 strcpy(owner_name, "nobody");
949 owner_namelen = sizeof("nobody") - 1;
950 /* goto out; */
951 }
952 len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
953 }
954 if (iap->ia_valid & ATTR_GID) {
Trond Myklebuste4fd72a2011-02-22 15:44:31 -0800955 owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700956 if (owner_grouplen < 0) {
Chuck Leverfe82a182007-09-11 18:01:10 -0400957 dprintk("nfs: couldn't resolve gid %d to string\n",
958 iap->ia_gid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959 strcpy(owner_group, "nobody");
960 owner_grouplen = sizeof("nobody") - 1;
961 /* goto out; */
962 }
963 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
964 }
965 if (iap->ia_valid & ATTR_ATIME_SET)
966 len += 16;
967 else if (iap->ia_valid & ATTR_ATIME)
968 len += 4;
969 if (iap->ia_valid & ATTR_MTIME_SET)
970 len += 16;
971 else if (iap->ia_valid & ATTR_MTIME)
972 len += 4;
Benny Halevy13c65ce2009-08-14 17:19:25 +0300973 p = reserve_space(xdr, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974
975 /*
976 * We write the bitmap length now, but leave the bitmap and the attribute
977 * buffer length to be backfilled at the end of this routine.
978 */
Benny Halevye75bc1c2009-08-14 17:18:54 +0300979 *p++ = cpu_to_be32(2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700980 q = p;
981 p += 3;
982
983 if (iap->ia_valid & ATTR_SIZE) {
984 bmval0 |= FATTR4_WORD0_SIZE;
Benny Halevyb95be5a2009-08-14 17:19:01 +0300985 p = xdr_encode_hyper(p, iap->ia_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986 }
987 if (iap->ia_valid & ATTR_MODE) {
988 bmval1 |= FATTR4_WORD1_MODE;
Benny Halevye75bc1c2009-08-14 17:18:54 +0300989 *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700990 }
991 if (iap->ia_valid & ATTR_UID) {
992 bmval1 |= FATTR4_WORD1_OWNER;
Benny Halevy811652b2009-08-14 17:19:34 +0300993 p = xdr_encode_opaque(p, owner_name, owner_namelen);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994 }
995 if (iap->ia_valid & ATTR_GID) {
996 bmval1 |= FATTR4_WORD1_OWNER_GROUP;
Benny Halevy811652b2009-08-14 17:19:34 +0300997 p = xdr_encode_opaque(p, owner_group, owner_grouplen);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700998 }
999 if (iap->ia_valid & ATTR_ATIME_SET) {
1000 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
Benny Halevye75bc1c2009-08-14 17:18:54 +03001001 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
1002 *p++ = cpu_to_be32(0);
Trond Myklebustd3f6baa2010-06-22 08:52:39 -04001003 *p++ = cpu_to_be32(iap->ia_atime.tv_sec);
1004 *p++ = cpu_to_be32(iap->ia_atime.tv_nsec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001005 }
1006 else if (iap->ia_valid & ATTR_ATIME) {
1007 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
Benny Halevye75bc1c2009-08-14 17:18:54 +03001008 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009 }
1010 if (iap->ia_valid & ATTR_MTIME_SET) {
1011 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
Benny Halevye75bc1c2009-08-14 17:18:54 +03001012 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
1013 *p++ = cpu_to_be32(0);
1014 *p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
1015 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016 }
1017 else if (iap->ia_valid & ATTR_MTIME) {
1018 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
Benny Halevye75bc1c2009-08-14 17:18:54 +03001019 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001020 }
Andy Adamson6c0195a2008-12-23 16:06:15 -05001021
Linus Torvalds1da177e2005-04-16 15:20:36 -07001022 /*
1023 * Now we backfill the bitmap and the attribute buffer length.
1024 */
1025 if (len != ((char *)p - (char *)q) + 4) {
Chuck Leverfe82a182007-09-11 18:01:10 -04001026 printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027 len, ((char *)p - (char *)q) + 4);
1028 BUG();
1029 }
1030 len = (char *)p - (char *)q - 12;
1031 *q++ = htonl(bmval0);
1032 *q++ = htonl(bmval1);
Benny Halevy34558512009-08-14 17:19:30 +03001033 *q = htonl(len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035/* out: */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001036}
1037
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001038static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039{
Al Viro8687b632006-10-19 23:28:48 -07001040 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041
Benny Halevy13c65ce2009-08-14 17:19:25 +03001042 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001043 *p++ = cpu_to_be32(OP_ACCESS);
Benny Halevy34558512009-08-14 17:19:30 +03001044 *p = cpu_to_be32(access);
Andy Adamsond0179312008-12-23 16:06:17 -05001045 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001046 hdr->replen += decode_access_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047}
1048
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001049static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050{
Al Viro8687b632006-10-19 23:28:48 -07001051 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001052
Benny Halevy13c65ce2009-08-14 17:19:25 +03001053 p = reserve_space(xdr, 8+NFS4_STATEID_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001054 *p++ = cpu_to_be32(OP_CLOSE);
1055 *p++ = cpu_to_be32(arg->seqid->sequence->counter);
Benny Halevy34558512009-08-14 17:19:30 +03001056 xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -05001057 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001058 hdr->replen += decode_close_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001059}
1060
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001061static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062{
Al Viro8687b632006-10-19 23:28:48 -07001063 __be32 *p;
Andy Adamson6c0195a2008-12-23 16:06:15 -05001064
Benny Halevy13c65ce2009-08-14 17:19:25 +03001065 p = reserve_space(xdr, 16);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001066 *p++ = cpu_to_be32(OP_COMMIT);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001067 p = xdr_encode_hyper(p, args->offset);
Benny Halevy34558512009-08-14 17:19:30 +03001068 *p = cpu_to_be32(args->count);
Andy Adamsond0179312008-12-23 16:06:17 -05001069 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001070 hdr->replen += decode_commit_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071}
1072
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001073static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074{
Al Viro8687b632006-10-19 23:28:48 -07001075 __be32 *p;
Andy Adamson6c0195a2008-12-23 16:06:15 -05001076
Benny Halevy13c65ce2009-08-14 17:19:25 +03001077 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001078 *p++ = cpu_to_be32(OP_CREATE);
Benny Halevy34558512009-08-14 17:19:30 +03001079 *p = cpu_to_be32(create->ftype);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080
1081 switch (create->ftype) {
1082 case NF4LNK:
Benny Halevy13c65ce2009-08-14 17:19:25 +03001083 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001084 *p = cpu_to_be32(create->u.symlink.len);
Chuck Lever94a6d752006-08-22 20:06:23 -04001085 xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001086 break;
1087
1088 case NF4BLK: case NF4CHR:
Benny Halevy13c65ce2009-08-14 17:19:25 +03001089 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001090 *p++ = cpu_to_be32(create->u.device.specdata1);
Benny Halevy34558512009-08-14 17:19:30 +03001091 *p = cpu_to_be32(create->u.device.specdata2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001092 break;
1093
1094 default:
1095 break;
1096 }
1097
Benny Halevy811652b2009-08-14 17:19:34 +03001098 encode_string(xdr, create->name->len, create->name->name);
Andy Adamsond0179312008-12-23 16:06:17 -05001099 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001100 hdr->replen += decode_create_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001101
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001102 encode_attrs(xdr, create->attrs, create->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001103}
1104
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001105static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001106{
Andy Adamson05d564f2008-12-23 16:06:15 -05001107 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001108
Benny Halevy13c65ce2009-08-14 17:19:25 +03001109 p = reserve_space(xdr, 12);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001110 *p++ = cpu_to_be32(OP_GETATTR);
1111 *p++ = cpu_to_be32(1);
Benny Halevy34558512009-08-14 17:19:30 +03001112 *p = cpu_to_be32(bitmap);
Andy Adamsond0179312008-12-23 16:06:17 -05001113 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001114 hdr->replen += decode_getattr_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001115}
1116
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001117static 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 -07001118{
Andy Adamson05d564f2008-12-23 16:06:15 -05001119 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001120
Benny Halevy13c65ce2009-08-14 17:19:25 +03001121 p = reserve_space(xdr, 16);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001122 *p++ = cpu_to_be32(OP_GETATTR);
1123 *p++ = cpu_to_be32(2);
1124 *p++ = cpu_to_be32(bm0);
Benny Halevy34558512009-08-14 17:19:30 +03001125 *p = cpu_to_be32(bm1);
Andy Adamsond0179312008-12-23 16:06:17 -05001126 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001127 hdr->replen += decode_getattr_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001128}
1129
Fred Isamandae100c2011-07-30 20:52:37 -04001130static void
1131encode_getattr_three(struct xdr_stream *xdr,
1132 uint32_t bm0, uint32_t bm1, uint32_t bm2,
1133 struct compound_hdr *hdr)
1134{
1135 __be32 *p;
1136
1137 p = reserve_space(xdr, 4);
1138 *p = cpu_to_be32(OP_GETATTR);
1139 if (bm2) {
1140 p = reserve_space(xdr, 16);
1141 *p++ = cpu_to_be32(3);
1142 *p++ = cpu_to_be32(bm0);
1143 *p++ = cpu_to_be32(bm1);
1144 *p = cpu_to_be32(bm2);
1145 } else if (bm1) {
1146 p = reserve_space(xdr, 12);
1147 *p++ = cpu_to_be32(2);
1148 *p++ = cpu_to_be32(bm0);
1149 *p = cpu_to_be32(bm1);
1150 } else {
1151 p = reserve_space(xdr, 8);
1152 *p++ = cpu_to_be32(1);
1153 *p = cpu_to_be32(bm0);
1154 }
1155 hdr->nops++;
1156 hdr->replen += decode_getattr_maxsz;
1157}
1158
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001159static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001160{
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001161 encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0],
1162 bitmask[1] & nfs4_fattr_bitmap[1], hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001163}
1164
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001165static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001166{
Fred Isamandae100c2011-07-30 20:52:37 -04001167 encode_getattr_three(xdr,
1168 bitmask[0] & nfs4_fsinfo_bitmap[0],
1169 bitmask[1] & nfs4_fsinfo_bitmap[1],
1170 bitmask[2] & nfs4_fsinfo_bitmap[2],
1171 hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001172}
1173
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001174static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
Manoj Naik830b8e32006-06-09 09:34:25 -04001175{
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001176 encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0],
1177 bitmask[1] & nfs4_fs_locations_bitmap[1], hdr);
Manoj Naik830b8e32006-06-09 09:34:25 -04001178}
1179
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001180static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001181{
Al Viro8687b632006-10-19 23:28:48 -07001182 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001183
Benny Halevy13c65ce2009-08-14 17:19:25 +03001184 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001185 *p = cpu_to_be32(OP_GETFH);
Andy Adamsond0179312008-12-23 16:06:17 -05001186 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001187 hdr->replen += decode_getfh_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001188}
1189
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001190static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001191{
Al Viro8687b632006-10-19 23:28:48 -07001192 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001193
Benny Halevy13c65ce2009-08-14 17:19:25 +03001194 p = reserve_space(xdr, 8 + name->len);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001195 *p++ = cpu_to_be32(OP_LINK);
Benny Halevy811652b2009-08-14 17:19:34 +03001196 xdr_encode_opaque(p, name->name, name->len);
Andy Adamsond0179312008-12-23 16:06:17 -05001197 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001198 hdr->replen += decode_link_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001199}
1200
Trond Myklebust911d1aa2006-01-03 09:55:16 +01001201static inline int nfs4_lock_type(struct file_lock *fl, int block)
1202{
1203 if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK)
1204 return block ? NFS4_READW_LT : NFS4_READ_LT;
1205 return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT;
1206}
1207
1208static inline uint64_t nfs4_lock_length(struct file_lock *fl)
1209{
1210 if (fl->fl_end == OFFSET_MAX)
1211 return ~(uint64_t)0;
1212 return fl->fl_end - fl->fl_start + 1;
1213}
1214
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001215static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner)
1216{
1217 __be32 *p;
1218
Trond Myklebustd035c362010-12-21 10:45:27 -05001219 p = reserve_space(xdr, 32);
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001220 p = xdr_encode_hyper(p, lowner->clientid);
Trond Myklebustd035c362010-12-21 10:45:27 -05001221 *p++ = cpu_to_be32(20);
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001222 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
Trond Myklebustd035c362010-12-21 10:45:27 -05001223 *p++ = cpu_to_be32(lowner->s_dev);
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001224 xdr_encode_hyper(p, lowner->id);
1225}
1226
Linus Torvalds1da177e2005-04-16 15:20:36 -07001227/*
1228 * opcode,type,reclaim,offset,length,new_lock_owner = 32
1229 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
1230 */
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001231static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001232{
Al Viro8687b632006-10-19 23:28:48 -07001233 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001234
Benny Halevy13c65ce2009-08-14 17:19:25 +03001235 p = reserve_space(xdr, 32);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001236 *p++ = cpu_to_be32(OP_LOCK);
1237 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block));
1238 *p++ = cpu_to_be32(args->reclaim);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001239 p = xdr_encode_hyper(p, args->fl->fl_start);
1240 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
Benny Halevy34558512009-08-14 17:19:30 +03001241 *p = cpu_to_be32(args->new_lock_owner);
Trond Myklebust911d1aa2006-01-03 09:55:16 +01001242 if (args->new_lock_owner){
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001243 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001244 *p++ = cpu_to_be32(args->open_seqid->sequence->counter);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001245 p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001246 *p++ = cpu_to_be32(args->lock_seqid->sequence->counter);
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001247 encode_lockowner(xdr, &args->lock_owner);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248 }
1249 else {
Benny Halevy13c65ce2009-08-14 17:19:25 +03001250 p = reserve_space(xdr, NFS4_STATEID_SIZE+4);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001251 p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE);
Benny Halevy34558512009-08-14 17:19:30 +03001252 *p = cpu_to_be32(args->lock_seqid->sequence->counter);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001253 }
Andy Adamsond0179312008-12-23 16:06:17 -05001254 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001255 hdr->replen += decode_lock_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001256}
1257
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001258static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259{
Al Viro8687b632006-10-19 23:28:48 -07001260 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001261
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001262 p = reserve_space(xdr, 24);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001263 *p++ = cpu_to_be32(OP_LOCKT);
1264 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
Benny Halevyb95be5a2009-08-14 17:19:01 +03001265 p = xdr_encode_hyper(p, args->fl->fl_start);
1266 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001267 encode_lockowner(xdr, &args->lock_owner);
Andy Adamsond0179312008-12-23 16:06:17 -05001268 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001269 hdr->replen += decode_lockt_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001270}
1271
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001272static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001273{
Al Viro8687b632006-10-19 23:28:48 -07001274 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275
Benny Halevy13c65ce2009-08-14 17:19:25 +03001276 p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001277 *p++ = cpu_to_be32(OP_LOCKU);
1278 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1279 *p++ = cpu_to_be32(args->seqid->sequence->counter);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001280 p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001281 p = xdr_encode_hyper(p, args->fl->fl_start);
Benny Halevy34558512009-08-14 17:19:30 +03001282 xdr_encode_hyper(p, nfs4_lock_length(args->fl));
Andy Adamsond0179312008-12-23 16:06:17 -05001283 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001284 hdr->replen += decode_locku_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001285}
1286
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04001287static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr)
1288{
1289 __be32 *p;
1290
1291 p = reserve_space(xdr, 4);
1292 *p = cpu_to_be32(OP_RELEASE_LOCKOWNER);
1293 encode_lockowner(xdr, lowner);
1294 hdr->nops++;
1295 hdr->replen += decode_release_lockowner_maxsz;
1296}
1297
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001298static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001299{
1300 int len = name->len;
Al Viro8687b632006-10-19 23:28:48 -07001301 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001302
Benny Halevy13c65ce2009-08-14 17:19:25 +03001303 p = reserve_space(xdr, 8 + len);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001304 *p++ = cpu_to_be32(OP_LOOKUP);
Benny Halevy811652b2009-08-14 17:19:34 +03001305 xdr_encode_opaque(p, name->name, len);
Andy Adamsond0179312008-12-23 16:06:17 -05001306 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001307 hdr->replen += decode_lookup_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001308}
1309
Trond Myklebustdc0b0272008-12-23 15:21:56 -05001310static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001311{
Al Viro8687b632006-10-19 23:28:48 -07001312 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001313
Benny Halevy13c65ce2009-08-14 17:19:25 +03001314 p = reserve_space(xdr, 8);
Trond Myklebustdc0b0272008-12-23 15:21:56 -05001315 switch (fmode & (FMODE_READ|FMODE_WRITE)) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001316 case FMODE_READ:
Benny Halevye75bc1c2009-08-14 17:18:54 +03001317 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ);
Andy Adamson05d564f2008-12-23 16:06:15 -05001318 break;
1319 case FMODE_WRITE:
Benny Halevye75bc1c2009-08-14 17:18:54 +03001320 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001321 break;
1322 case FMODE_READ|FMODE_WRITE:
Benny Halevye75bc1c2009-08-14 17:18:54 +03001323 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH);
Andy Adamson05d564f2008-12-23 16:06:15 -05001324 break;
1325 default:
Benny Halevye75bc1c2009-08-14 17:18:54 +03001326 *p++ = cpu_to_be32(0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001327 }
Benny Halevy34558512009-08-14 17:19:30 +03001328 *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001329}
1330
1331static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1332{
Al Viro8687b632006-10-19 23:28:48 -07001333 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334 /*
1335 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1336 * owner 4 = 32
1337 */
Benny Halevy13c65ce2009-08-14 17:19:25 +03001338 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001339 *p++ = cpu_to_be32(OP_OPEN);
Benny Halevy34558512009-08-14 17:19:30 +03001340 *p = cpu_to_be32(arg->seqid->sequence->counter);
Trond Myklebustdc0b0272008-12-23 15:21:56 -05001341 encode_share_access(xdr, arg->fmode);
Trond Myklebustd035c362010-12-21 10:45:27 -05001342 p = reserve_space(xdr, 32);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001343 p = xdr_encode_hyper(p, arg->clientid);
Trond Myklebustd035c362010-12-21 10:45:27 -05001344 *p++ = cpu_to_be32(20);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001345 p = xdr_encode_opaque_fixed(p, "open id:", 8);
Trond Myklebustd035c362010-12-21 10:45:27 -05001346 *p++ = cpu_to_be32(arg->server->s_dev);
Benny Halevy34558512009-08-14 17:19:30 +03001347 xdr_encode_hyper(p, arg->id);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001348}
1349
1350static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1351{
Al Viro8687b632006-10-19 23:28:48 -07001352 __be32 *p;
Alexandros Batsakis4882ef72009-12-05 13:30:21 -05001353 struct nfs_client *clp;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001354
Benny Halevy13c65ce2009-08-14 17:19:25 +03001355 p = reserve_space(xdr, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001356 switch(arg->open_flags & O_EXCL) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001357 case 0:
Benny Halevy34558512009-08-14 17:19:30 +03001358 *p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
Andy Adamson05d564f2008-12-23 16:06:15 -05001359 encode_attrs(xdr, arg->u.attrs, arg->server);
1360 break;
1361 default:
Alexandros Batsakis4882ef72009-12-05 13:30:21 -05001362 clp = arg->server->nfs_client;
Trond Myklebusta4432342010-06-16 09:52:27 -04001363 if (clp->cl_mvops->minor_version > 0) {
Alexandros Batsakis4882ef72009-12-05 13:30:21 -05001364 if (nfs4_has_persistent_session(clp)) {
1365 *p = cpu_to_be32(NFS4_CREATE_GUARDED);
1366 encode_attrs(xdr, arg->u.attrs, arg->server);
1367 } else {
1368 struct iattr dummy;
1369
1370 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1);
1371 encode_nfs4_verifier(xdr, &arg->u.verifier);
1372 dummy.ia_valid = 0;
1373 encode_attrs(xdr, &dummy, arg->server);
1374 }
1375 } else {
1376 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
1377 encode_nfs4_verifier(xdr, &arg->u.verifier);
1378 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379 }
1380}
1381
1382static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1383{
Al Viro8687b632006-10-19 23:28:48 -07001384 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001385
Benny Halevy13c65ce2009-08-14 17:19:25 +03001386 p = reserve_space(xdr, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387 switch (arg->open_flags & O_CREAT) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001388 case 0:
Benny Halevy34558512009-08-14 17:19:30 +03001389 *p = cpu_to_be32(NFS4_OPEN_NOCREATE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001390 break;
1391 default:
1392 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
Benny Halevy34558512009-08-14 17:19:30 +03001393 *p = cpu_to_be32(NFS4_OPEN_CREATE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001394 encode_createmode(xdr, arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001395 }
1396}
1397
Trond Myklebustbd7bf9d2008-12-23 15:21:53 -05001398static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399{
Al Viro8687b632006-10-19 23:28:48 -07001400 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001401
Benny Halevy13c65ce2009-08-14 17:19:25 +03001402 p = reserve_space(xdr, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001403 switch (delegation_type) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001404 case 0:
Benny Halevy34558512009-08-14 17:19:30 +03001405 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001406 break;
1407 case FMODE_READ:
Benny Halevy34558512009-08-14 17:19:30 +03001408 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ);
Andy Adamson05d564f2008-12-23 16:06:15 -05001409 break;
1410 case FMODE_WRITE|FMODE_READ:
Benny Halevy34558512009-08-14 17:19:30 +03001411 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001412 break;
1413 default:
1414 BUG();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001415 }
1416}
1417
1418static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
1419{
Al Viro8687b632006-10-19 23:28:48 -07001420 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001421
Benny Halevy13c65ce2009-08-14 17:19:25 +03001422 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001423 *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001424 encode_string(xdr, name->len, name->name);
1425}
1426
Trond Myklebustbd7bf9d2008-12-23 15:21:53 -05001427static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001428{
Al Viro8687b632006-10-19 23:28:48 -07001429 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001430
Benny Halevy13c65ce2009-08-14 17:19:25 +03001431 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001432 *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001433 encode_delegation_type(xdr, type);
1434}
1435
1436static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
1437{
Al Viro8687b632006-10-19 23:28:48 -07001438 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001439
Benny Halevy13c65ce2009-08-14 17:19:25 +03001440 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001441 *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
Benny Halevy34558512009-08-14 17:19:30 +03001442 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443 encode_string(xdr, name->len, name->name);
1444}
1445
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001446static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001447{
1448 encode_openhdr(xdr, arg);
1449 encode_opentype(xdr, arg);
1450 switch (arg->claim) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001451 case NFS4_OPEN_CLAIM_NULL:
1452 encode_claim_null(xdr, arg->name);
1453 break;
1454 case NFS4_OPEN_CLAIM_PREVIOUS:
1455 encode_claim_previous(xdr, arg->u.delegation_type);
1456 break;
1457 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
1458 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
1459 break;
1460 default:
1461 BUG();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001462 }
Andy Adamsond0179312008-12-23 16:06:17 -05001463 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001464 hdr->replen += decode_open_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001465}
1466
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001467static 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 -07001468{
Al Viro8687b632006-10-19 23:28:48 -07001469 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470
Benny Halevy13c65ce2009-08-14 17:19:25 +03001471 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001472 *p++ = cpu_to_be32(OP_OPEN_CONFIRM);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001473 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
Benny Halevy34558512009-08-14 17:19:30 +03001474 *p = cpu_to_be32(arg->seqid->sequence->counter);
Andy Adamsond0179312008-12-23 16:06:17 -05001475 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001476 hdr->replen += decode_open_confirm_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001477}
1478
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001479static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480{
Al Viro8687b632006-10-19 23:28:48 -07001481 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482
Benny Halevy13c65ce2009-08-14 17:19:25 +03001483 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001484 *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001485 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
Benny Halevy34558512009-08-14 17:19:30 +03001486 *p = cpu_to_be32(arg->seqid->sequence->counter);
Trond Myklebustdc0b0272008-12-23 15:21:56 -05001487 encode_share_access(xdr, arg->fmode);
Andy Adamsond0179312008-12-23 16:06:17 -05001488 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001489 hdr->replen += decode_open_downgrade_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001490}
1491
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001492static void
Andy Adamsond0179312008-12-23 16:06:17 -05001493encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001494{
1495 int len = fh->size;
Al Viro8687b632006-10-19 23:28:48 -07001496 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001497
Benny Halevy13c65ce2009-08-14 17:19:25 +03001498 p = reserve_space(xdr, 8 + len);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001499 *p++ = cpu_to_be32(OP_PUTFH);
Benny Halevy811652b2009-08-14 17:19:34 +03001500 xdr_encode_opaque(p, fh->data, len);
Andy Adamsond0179312008-12-23 16:06:17 -05001501 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001502 hdr->replen += decode_putfh_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001503}
1504
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001505static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001506{
Andy Adamson05d564f2008-12-23 16:06:15 -05001507 __be32 *p;
Andy Adamson6c0195a2008-12-23 16:06:15 -05001508
Benny Halevy13c65ce2009-08-14 17:19:25 +03001509 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001510 *p = cpu_to_be32(OP_PUTROOTFH);
Andy Adamsond0179312008-12-23 16:06:17 -05001511 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001512 hdr->replen += decode_putrootfh_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001513}
1514
Andy Adamson89d1ea62011-03-01 01:34:09 +00001515static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx, int zero_seqid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001516{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001517 nfs4_stateid stateid;
Al Viro8687b632006-10-19 23:28:48 -07001518 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001519
Benny Halevy13c65ce2009-08-14 17:19:25 +03001520 p = reserve_space(xdr, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001521 if (ctx->state != NULL) {
Trond Myklebust77041ed2010-07-01 12:49:11 -04001522 nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid);
Andy Adamson89d1ea62011-03-01 01:34:09 +00001523 if (zero_seqid)
1524 stateid.stateid.seqid = 0;
Benny Halevy34558512009-08-14 17:19:30 +03001525 xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001526 } else
Benny Halevy34558512009-08-14 17:19:30 +03001527 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001528}
1529
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001530static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001531{
Al Viro8687b632006-10-19 23:28:48 -07001532 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001533
Benny Halevy13c65ce2009-08-14 17:19:25 +03001534 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001535 *p = cpu_to_be32(OP_READ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001536
Andy Adamson89d1ea62011-03-01 01:34:09 +00001537 encode_stateid(xdr, args->context, args->lock_context,
1538 hdr->minorversion);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001539
Benny Halevy13c65ce2009-08-14 17:19:25 +03001540 p = reserve_space(xdr, 12);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001541 p = xdr_encode_hyper(p, args->offset);
Benny Halevy34558512009-08-14 17:19:30 +03001542 *p = cpu_to_be32(args->count);
Andy Adamsond0179312008-12-23 16:06:17 -05001543 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001544 hdr->replen += decode_read_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001545}
1546
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001547static 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 -07001548{
Trond Myklebust28331a42011-04-27 13:47:52 -04001549 uint32_t attrs[2] = {
1550 FATTR4_WORD0_RDATTR_ERROR,
1551 FATTR4_WORD1_MOUNTED_ON_FILEID,
1552 };
Trond Myklebust6f7a35b2010-10-24 12:11:42 -04001553 uint32_t dircount = readdir->count >> 1;
Al Viro8687b632006-10-19 23:28:48 -07001554 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001555
Bryan Schumaker82f2e542010-10-21 16:33:18 -04001556 if (readdir->plus) {
1557 attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE|
Trond Myklebust28331a42011-04-27 13:47:52 -04001558 FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID;
Bryan Schumaker82f2e542010-10-21 16:33:18 -04001559 attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER|
1560 FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV|
1561 FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS|
1562 FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
Trond Myklebust6f7a35b2010-10-24 12:11:42 -04001563 dircount >>= 1;
Bryan Schumaker82f2e542010-10-21 16:33:18 -04001564 }
Trond Myklebust28331a42011-04-27 13:47:52 -04001565 /* Use mounted_on_fileid only if the server supports it */
1566 if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID))
1567 attrs[0] |= FATTR4_WORD0_FILEID;
Bryan Schumaker82f2e542010-10-21 16:33:18 -04001568
Benny Halevy13c65ce2009-08-14 17:19:25 +03001569 p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001570 *p++ = cpu_to_be32(OP_READDIR);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001571 p = xdr_encode_hyper(p, readdir->cookie);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001572 p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE);
Trond Myklebust6f7a35b2010-10-24 12:11:42 -04001573 *p++ = cpu_to_be32(dircount);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001574 *p++ = cpu_to_be32(readdir->count);
1575 *p++ = cpu_to_be32(2);
Bryan Schumaker82f2e542010-10-21 16:33:18 -04001576
Benny Halevye75bc1c2009-08-14 17:18:54 +03001577 *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]);
Benny Halevy34558512009-08-14 17:19:30 +03001578 *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]);
Andy Adamsond0179312008-12-23 16:06:17 -05001579 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001580 hdr->replen += decode_readdir_maxsz;
Fred Isaman44109242008-04-02 15:21:15 +03001581 dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n",
1582 __func__,
Trond Myklebusteadf4592005-06-22 17:16:39 +00001583 (unsigned long long)readdir->cookie,
1584 ((u32 *)readdir->verifier.data)[0],
1585 ((u32 *)readdir->verifier.data)[1],
1586 attrs[0] & readdir->bitmask[0],
1587 attrs[1] & readdir->bitmask[1]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001588}
1589
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001590static 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 -07001591{
Al Viro8687b632006-10-19 23:28:48 -07001592 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001593
Benny Halevy13c65ce2009-08-14 17:19:25 +03001594 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001595 *p = cpu_to_be32(OP_READLINK);
Andy Adamsond0179312008-12-23 16:06:17 -05001596 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001597 hdr->replen += decode_readlink_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001598}
1599
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001600static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001601{
Al Viro8687b632006-10-19 23:28:48 -07001602 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001603
Benny Halevy13c65ce2009-08-14 17:19:25 +03001604 p = reserve_space(xdr, 8 + name->len);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001605 *p++ = cpu_to_be32(OP_REMOVE);
Benny Halevy811652b2009-08-14 17:19:34 +03001606 xdr_encode_opaque(p, name->name, name->len);
Andy Adamsond0179312008-12-23 16:06:17 -05001607 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001608 hdr->replen += decode_remove_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001609}
1610
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001611static 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 -07001612{
Al Viro8687b632006-10-19 23:28:48 -07001613 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001614
Benny Halevy811652b2009-08-14 17:19:34 +03001615 p = reserve_space(xdr, 4);
1616 *p = cpu_to_be32(OP_RENAME);
1617 encode_string(xdr, oldname->len, oldname->name);
1618 encode_string(xdr, newname->len, newname->name);
Andy Adamsond0179312008-12-23 16:06:17 -05001619 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001620 hdr->replen += decode_rename_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001621}
1622
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001623static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001624{
Al Viro8687b632006-10-19 23:28:48 -07001625 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001626
Benny Halevy13c65ce2009-08-14 17:19:25 +03001627 p = reserve_space(xdr, 12);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001628 *p++ = cpu_to_be32(OP_RENEW);
Benny Halevy34558512009-08-14 17:19:30 +03001629 xdr_encode_hyper(p, client_stateid->cl_clientid);
Andy Adamsond0179312008-12-23 16:06:17 -05001630 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001631 hdr->replen += decode_renew_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001632}
1633
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001634static void
Andy Adamsond0179312008-12-23 16:06:17 -05001635encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04001636{
Al Viro8687b632006-10-19 23:28:48 -07001637 __be32 *p;
Trond Myklebust56ae19f2005-10-27 22:12:40 -04001638
Benny Halevy13c65ce2009-08-14 17:19:25 +03001639 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001640 *p = cpu_to_be32(OP_RESTOREFH);
Andy Adamsond0179312008-12-23 16:06:17 -05001641 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001642 hdr->replen += decode_restorefh_maxsz;
Trond Myklebust56ae19f2005-10-27 22:12:40 -04001643}
1644
Chuck Lever9f06c712010-12-14 14:59:18 +00001645static void
Andy Adamsond0179312008-12-23 16:06:17 -05001646encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr)
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001647{
Al Viro8687b632006-10-19 23:28:48 -07001648 __be32 *p;
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001649
Benny Halevy13c65ce2009-08-14 17:19:25 +03001650 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001651 *p++ = cpu_to_be32(OP_SETATTR);
Benny Halevy34558512009-08-14 17:19:30 +03001652 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001653 p = reserve_space(xdr, 2*4);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001654 *p++ = cpu_to_be32(1);
Benny Halevy34558512009-08-14 17:19:30 +03001655 *p = cpu_to_be32(FATTR4_WORD0_ACL);
Chuck Lever9f06c712010-12-14 14:59:18 +00001656 BUG_ON(arg->acl_len % 4);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001657 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001658 *p = cpu_to_be32(arg->acl_len);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001659 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
Andy Adamsond0179312008-12-23 16:06:17 -05001660 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001661 hdr->replen += decode_setacl_maxsz;
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001662}
1663
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001664static void
Andy Adamsond0179312008-12-23 16:06:17 -05001665encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001666{
Al Viro8687b632006-10-19 23:28:48 -07001667 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001668
Benny Halevy13c65ce2009-08-14 17:19:25 +03001669 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001670 *p = cpu_to_be32(OP_SAVEFH);
Andy Adamsond0179312008-12-23 16:06:17 -05001671 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001672 hdr->replen += decode_savefh_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001673}
1674
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001675static 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 -07001676{
Al Viro8687b632006-10-19 23:28:48 -07001677 __be32 *p;
Andy Adamson6c0195a2008-12-23 16:06:15 -05001678
Benny Halevy13c65ce2009-08-14 17:19:25 +03001679 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001680 *p++ = cpu_to_be32(OP_SETATTR);
Benny Halevy34558512009-08-14 17:19:30 +03001681 xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -05001682 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001683 hdr->replen += decode_setattr_maxsz;
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001684 encode_attrs(xdr, arg->iap, server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001685}
1686
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001687static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001688{
Al Viro8687b632006-10-19 23:28:48 -07001689 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001690
Benny Halevy13c65ce2009-08-14 17:19:25 +03001691 p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001692 *p++ = cpu_to_be32(OP_SETCLIENTID);
Benny Halevy34558512009-08-14 17:19:30 +03001693 xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001694
1695 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001696 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001697 *p = cpu_to_be32(setclientid->sc_prog);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001698 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1699 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001700 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001701 *p = cpu_to_be32(setclientid->sc_cb_ident);
Andy Adamsond0179312008-12-23 16:06:17 -05001702 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001703 hdr->replen += decode_setclientid_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001704}
1705
Trond Myklebustbb8b27e2010-04-16 16:43:06 -04001706static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001707{
Andy Adamson05d564f2008-12-23 16:06:15 -05001708 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001709
Benny Halevy13c65ce2009-08-14 17:19:25 +03001710 p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001711 *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM);
Trond Myklebustbb8b27e2010-04-16 16:43:06 -04001712 p = xdr_encode_hyper(p, arg->clientid);
1713 xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -05001714 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001715 hdr->replen += decode_setclientid_confirm_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001716}
1717
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001718static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719{
Al Viro8687b632006-10-19 23:28:48 -07001720 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001721
Benny Halevy13c65ce2009-08-14 17:19:25 +03001722 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001723 *p = cpu_to_be32(OP_WRITE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001724
Andy Adamson89d1ea62011-03-01 01:34:09 +00001725 encode_stateid(xdr, args->context, args->lock_context,
1726 hdr->minorversion);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001727
Benny Halevy13c65ce2009-08-14 17:19:25 +03001728 p = reserve_space(xdr, 16);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001729 p = xdr_encode_hyper(p, args->offset);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001730 *p++ = cpu_to_be32(args->stable);
Benny Halevy34558512009-08-14 17:19:30 +03001731 *p = cpu_to_be32(args->count);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001732
1733 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
Andy Adamsond0179312008-12-23 16:06:17 -05001734 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001735 hdr->replen += decode_write_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001736}
1737
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001738static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001739{
Al Viro8687b632006-10-19 23:28:48 -07001740 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001741
Benny Halevy13c65ce2009-08-14 17:19:25 +03001742 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001743
Benny Halevye75bc1c2009-08-14 17:18:54 +03001744 *p++ = cpu_to_be32(OP_DELEGRETURN);
Benny Halevy34558512009-08-14 17:19:30 +03001745 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -05001746 hdr->nops++;
Benny Halevydadf0c22009-04-01 09:22:08 -04001747 hdr->replen += decode_delegreturn_maxsz;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001748}
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001749
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00001750static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1751{
1752 int len = name->len;
1753 __be32 *p;
1754
1755 p = reserve_space(xdr, 8 + len);
1756 *p++ = cpu_to_be32(OP_SECINFO);
1757 xdr_encode_opaque(p, name->name, len);
1758 hdr->nops++;
1759 hdr->replen += decode_secinfo_maxsz;
1760}
1761
Benny Halevy99fe60d2009-04-01 09:22:29 -04001762#if defined(CONFIG_NFS_V4_1)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001763/* NFSv4.1 operations */
Benny Halevy99fe60d2009-04-01 09:22:29 -04001764static void encode_exchange_id(struct xdr_stream *xdr,
1765 struct nfs41_exchange_id_args *args,
1766 struct compound_hdr *hdr)
1767{
1768 __be32 *p;
1769
Benny Halevy13c65ce2009-08-14 17:19:25 +03001770 p = reserve_space(xdr, 4 + sizeof(args->verifier->data));
Benny Halevye75bc1c2009-08-14 17:18:54 +03001771 *p++ = cpu_to_be32(OP_EXCHANGE_ID);
Benny Halevy34558512009-08-14 17:19:30 +03001772 xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data));
Benny Halevy99fe60d2009-04-01 09:22:29 -04001773
1774 encode_string(xdr, args->id_len, args->id);
1775
Benny Halevy13c65ce2009-08-14 17:19:25 +03001776 p = reserve_space(xdr, 12);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001777 *p++ = cpu_to_be32(args->flags);
1778 *p++ = cpu_to_be32(0); /* zero length state_protect4_a */
Benny Halevy34558512009-08-14 17:19:30 +03001779 *p = cpu_to_be32(0); /* zero length implementation id array */
Benny Halevy99fe60d2009-04-01 09:22:29 -04001780 hdr->nops++;
1781 hdr->replen += decode_exchange_id_maxsz;
1782}
Andy Adamsonfc931582009-04-01 09:22:31 -04001783
1784static void encode_create_session(struct xdr_stream *xdr,
1785 struct nfs41_create_session_args *args,
1786 struct compound_hdr *hdr)
1787{
1788 __be32 *p;
1789 char machine_name[NFS4_MAX_MACHINE_NAME_LEN];
1790 uint32_t len;
1791 struct nfs_client *clp = args->client;
Mike Sager8e0d46e2009-12-17 12:06:26 -05001792 u32 max_resp_sz_cached;
1793
1794 /*
1795 * Assumes OPEN is the biggest non-idempotent compound.
1796 * 2 is the verifier.
1797 */
1798 max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE +
1799 RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT;
Andy Adamsonfc931582009-04-01 09:22:31 -04001800
Andy Adamsonfc931582009-04-01 09:22:31 -04001801 len = scnprintf(machine_name, sizeof(machine_name), "%s",
1802 clp->cl_ipaddr);
Benny Halevy42edd692009-08-14 17:19:13 +03001803
Benny Halevy13c65ce2009-08-14 17:19:25 +03001804 p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001805 *p++ = cpu_to_be32(OP_CREATE_SESSION);
Andy Adamson114f64b2011-03-09 13:13:45 -05001806 p = xdr_encode_hyper(p, clp->cl_clientid);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001807 *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */
1808 *p++ = cpu_to_be32(args->flags); /*flags */
Andy Adamsonfc931582009-04-01 09:22:31 -04001809
Andy Adamsonfc931582009-04-01 09:22:31 -04001810 /* Fore Channel */
Benny Halevyc9c30dd2011-06-11 17:08:39 -04001811 *p++ = cpu_to_be32(0); /* header padding size */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001812 *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */
1813 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */
Mike Sager8e0d46e2009-12-17 12:06:26 -05001814 *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001815 *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */
1816 *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */
1817 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
Andy Adamsonfc931582009-04-01 09:22:31 -04001818
1819 /* Back Channel */
Benny Halevyc9c30dd2011-06-11 17:08:39 -04001820 *p++ = cpu_to_be32(0); /* header padding size */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001821 *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */
1822 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */
1823 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1824 *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */
1825 *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */
1826 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
Andy Adamsonfc931582009-04-01 09:22:31 -04001827
Benny Halevye75bc1c2009-08-14 17:18:54 +03001828 *p++ = cpu_to_be32(args->cb_program); /* cb_program */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001829 *p++ = cpu_to_be32(1);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001830 *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */
Andy Adamsonfc931582009-04-01 09:22:31 -04001831
1832 /* authsys_parms rfc1831 */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001833 *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */
Benny Halevy811652b2009-08-14 17:19:34 +03001834 p = xdr_encode_opaque(p, machine_name, len);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001835 *p++ = cpu_to_be32(0); /* UID */
1836 *p++ = cpu_to_be32(0); /* GID */
Benny Halevy34558512009-08-14 17:19:30 +03001837 *p = cpu_to_be32(0); /* No more gids */
Andy Adamsonfc931582009-04-01 09:22:31 -04001838 hdr->nops++;
1839 hdr->replen += decode_create_session_maxsz;
1840}
Andy Adamson0f3e66c2009-04-01 09:22:34 -04001841
1842static void encode_destroy_session(struct xdr_stream *xdr,
1843 struct nfs4_session *session,
1844 struct compound_hdr *hdr)
1845{
1846 __be32 *p;
Benny Halevy13c65ce2009-08-14 17:19:25 +03001847 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001848 *p++ = cpu_to_be32(OP_DESTROY_SESSION);
Benny Halevy34558512009-08-14 17:19:30 +03001849 xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04001850 hdr->nops++;
1851 hdr->replen += decode_destroy_session_maxsz;
1852}
Ricardo Labiaga180197532009-12-05 16:08:40 -05001853
1854static void encode_reclaim_complete(struct xdr_stream *xdr,
1855 struct nfs41_reclaim_complete_args *args,
1856 struct compound_hdr *hdr)
1857{
1858 __be32 *p;
1859
1860 p = reserve_space(xdr, 8);
1861 *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE);
1862 *p++ = cpu_to_be32(args->one_fs);
1863 hdr->nops++;
1864 hdr->replen += decode_reclaim_complete_maxsz;
1865}
Benny Halevy99fe60d2009-04-01 09:22:29 -04001866#endif /* CONFIG_NFS_V4_1 */
1867
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001868static void encode_sequence(struct xdr_stream *xdr,
1869 const struct nfs4_sequence_args *args,
1870 struct compound_hdr *hdr)
1871{
1872#if defined(CONFIG_NFS_V4_1)
1873 struct nfs4_session *session = args->sa_session;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001874 struct nfs4_slot_table *tp;
1875 struct nfs4_slot *slot;
1876 __be32 *p;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001877
1878 if (!session)
1879 return;
1880
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001881 tp = &session->fc_slot_table;
1882
1883 WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE);
1884 slot = tp->slots + args->sa_slotid;
1885
Benny Halevy13c65ce2009-08-14 17:19:25 +03001886 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001887 *p++ = cpu_to_be32(OP_SEQUENCE);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001888
1889 /*
1890 * Sessionid + seqid + slotid + max slotid + cache_this
1891 */
1892 dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
1893 "max_slotid=%d cache_this=%d\n",
1894 __func__,
1895 ((u32 *)session->sess_id.data)[0],
1896 ((u32 *)session->sess_id.data)[1],
1897 ((u32 *)session->sess_id.data)[2],
1898 ((u32 *)session->sess_id.data)[3],
1899 slot->seq_nr, args->sa_slotid,
1900 tp->highest_used_slotid, args->sa_cache_this);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001901 p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001902 *p++ = cpu_to_be32(slot->seq_nr);
1903 *p++ = cpu_to_be32(args->sa_slotid);
1904 *p++ = cpu_to_be32(tp->highest_used_slotid);
Benny Halevy34558512009-08-14 17:19:30 +03001905 *p = cpu_to_be32(args->sa_cache_this);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001906 hdr->nops++;
1907 hdr->replen += decode_sequence_maxsz;
1908#endif /* CONFIG_NFS_V4_1 */
1909}
1910
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001911#ifdef CONFIG_NFS_V4_1
1912static void
Andy Adamson7f11d8d2011-07-30 20:52:35 -04001913encode_getdevicelist(struct xdr_stream *xdr,
1914 const struct nfs4_getdevicelist_args *args,
1915 struct compound_hdr *hdr)
1916{
1917 __be32 *p;
1918 nfs4_verifier dummy = {
1919 .data = "dummmmmy",
1920 };
1921
1922 p = reserve_space(xdr, 20);
1923 *p++ = cpu_to_be32(OP_GETDEVICELIST);
1924 *p++ = cpu_to_be32(args->layoutclass);
1925 *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM);
1926 xdr_encode_hyper(p, 0ULL); /* cookie */
1927 encode_nfs4_verifier(xdr, &dummy);
1928 hdr->nops++;
1929 hdr->replen += decode_getdevicelist_maxsz;
1930}
1931
1932static void
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001933encode_getdeviceinfo(struct xdr_stream *xdr,
1934 const struct nfs4_getdeviceinfo_args *args,
1935 struct compound_hdr *hdr)
1936{
1937 __be32 *p;
1938
1939 p = reserve_space(xdr, 16 + NFS4_DEVICEID4_SIZE);
1940 *p++ = cpu_to_be32(OP_GETDEVICEINFO);
1941 p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data,
1942 NFS4_DEVICEID4_SIZE);
1943 *p++ = cpu_to_be32(args->pdev->layout_type);
1944 *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */
1945 *p++ = cpu_to_be32(0); /* bitmap length 0 */
1946 hdr->nops++;
1947 hdr->replen += decode_getdeviceinfo_maxsz;
1948}
1949
1950static void
1951encode_layoutget(struct xdr_stream *xdr,
1952 const struct nfs4_layoutget_args *args,
1953 struct compound_hdr *hdr)
1954{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001955 __be32 *p;
1956
1957 p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE);
1958 *p++ = cpu_to_be32(OP_LAYOUTGET);
1959 *p++ = cpu_to_be32(0); /* Signal layout available */
1960 *p++ = cpu_to_be32(args->type);
1961 *p++ = cpu_to_be32(args->range.iomode);
1962 p = xdr_encode_hyper(p, args->range.offset);
1963 p = xdr_encode_hyper(p, args->range.length);
1964 p = xdr_encode_hyper(p, args->minlength);
Fred Isamancf7d63f2011-01-06 11:36:25 +00001965 p = xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001966 *p = cpu_to_be32(args->maxcount);
1967
1968 dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n",
1969 __func__,
1970 args->type,
1971 args->range.iomode,
1972 (unsigned long)args->range.offset,
1973 (unsigned long)args->range.length,
1974 args->maxcount);
1975 hdr->nops++;
1976 hdr->replen += decode_layoutget_maxsz;
1977}
Andy Adamson863a3c62011-03-23 13:27:54 +00001978
1979static int
1980encode_layoutcommit(struct xdr_stream *xdr,
Benny Halevyac7db722011-05-22 19:53:48 +03001981 struct inode *inode,
Andy Adamson863a3c62011-03-23 13:27:54 +00001982 const struct nfs4_layoutcommit_args *args,
1983 struct compound_hdr *hdr)
1984{
1985 __be32 *p;
1986
1987 dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten,
1988 NFS_SERVER(args->inode)->pnfs_curr_ld->id);
1989
Benny Halevyac7db722011-05-22 19:53:48 +03001990 p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE);
Andy Adamson863a3c62011-03-23 13:27:54 +00001991 *p++ = cpu_to_be32(OP_LAYOUTCOMMIT);
1992 /* Only whole file layouts */
1993 p = xdr_encode_hyper(p, 0); /* offset */
Peng Tao3557c6c2011-07-30 20:52:34 -04001994 p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */
Andy Adamson863a3c62011-03-23 13:27:54 +00001995 *p++ = cpu_to_be32(0); /* reclaim */
1996 p = xdr_encode_opaque_fixed(p, args->stateid.data, NFS4_STATEID_SIZE);
1997 *p++ = cpu_to_be32(1); /* newoffset = TRUE */
1998 p = xdr_encode_hyper(p, args->lastbytewritten);
1999 *p++ = cpu_to_be32(0); /* Never send time_modify_changed */
2000 *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */
Benny Halevyac7db722011-05-22 19:53:48 +03002001
2002 if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit)
2003 NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit(
2004 NFS_I(inode)->layout, xdr, args);
2005 else {
2006 p = reserve_space(xdr, 4);
2007 *p = cpu_to_be32(0); /* no layout-type payload */
2008 }
Andy Adamson863a3c62011-03-23 13:27:54 +00002009
2010 hdr->nops++;
2011 hdr->replen += decode_layoutcommit_maxsz;
2012 return 0;
2013}
Benny Halevycbe82602011-05-22 19:52:37 +03002014
2015static void
2016encode_layoutreturn(struct xdr_stream *xdr,
2017 const struct nfs4_layoutreturn_args *args,
2018 struct compound_hdr *hdr)
2019{
2020 __be32 *p;
2021
2022 p = reserve_space(xdr, 20);
2023 *p++ = cpu_to_be32(OP_LAYOUTRETURN);
2024 *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */
2025 *p++ = cpu_to_be32(args->layout_type);
2026 *p++ = cpu_to_be32(IOMODE_ANY);
2027 *p = cpu_to_be32(RETURN_FILE);
2028 p = reserve_space(xdr, 16 + NFS4_STATEID_SIZE);
2029 p = xdr_encode_hyper(p, 0);
2030 p = xdr_encode_hyper(p, NFS4_MAX_UINT64);
2031 spin_lock(&args->inode->i_lock);
2032 xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE);
2033 spin_unlock(&args->inode->i_lock);
Andy Adamson04a55542011-05-22 19:53:10 +03002034 if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) {
2035 NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn(
2036 NFS_I(args->inode)->layout, xdr, args);
2037 } else {
2038 p = reserve_space(xdr, 4);
2039 *p = cpu_to_be32(0);
2040 }
Benny Halevycbe82602011-05-22 19:52:37 +03002041 hdr->nops++;
2042 hdr->replen += decode_layoutreturn_maxsz;
2043}
Bryan Schumakerfca78d62011-06-02 14:59:07 -04002044
2045static int
2046encode_secinfo_no_name(struct xdr_stream *xdr,
2047 const struct nfs41_secinfo_no_name_args *args,
2048 struct compound_hdr *hdr)
2049{
2050 __be32 *p;
2051 p = reserve_space(xdr, 8);
2052 *p++ = cpu_to_be32(OP_SECINFO_NO_NAME);
2053 *p++ = cpu_to_be32(args->style);
2054 hdr->nops++;
2055 hdr->replen += decode_secinfo_no_name_maxsz;
2056 return 0;
2057}
Bryan Schumaker7d974792011-06-02 14:59:08 -04002058
2059static void encode_test_stateid(struct xdr_stream *xdr,
2060 struct nfs41_test_stateid_args *args,
2061 struct compound_hdr *hdr)
2062{
2063 __be32 *p;
2064
2065 p = reserve_space(xdr, 8 + NFS4_STATEID_SIZE);
2066 *p++ = cpu_to_be32(OP_TEST_STATEID);
2067 *p++ = cpu_to_be32(1);
2068 xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
2069 hdr->nops++;
2070 hdr->replen += decode_test_stateid_maxsz;
2071}
Bryan Schumaker9aeda352011-06-02 14:59:09 -04002072
2073static void encode_free_stateid(struct xdr_stream *xdr,
2074 struct nfs41_free_stateid_args *args,
2075 struct compound_hdr *hdr)
2076{
2077 __be32 *p;
2078 p = reserve_space(xdr, 4 + NFS4_STATEID_SIZE);
2079 *p++ = cpu_to_be32(OP_FREE_STATEID);
2080 xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
2081 hdr->nops++;
2082 hdr->replen += decode_free_stateid_maxsz;
2083}
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002084#endif /* CONFIG_NFS_V4_1 */
2085
Linus Torvalds1da177e2005-04-16 15:20:36 -07002086/*
2087 * END OF "GENERIC" ENCODE ROUTINES.
2088 */
2089
Benny Halevy66cc0422009-04-01 09:22:10 -04002090static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
2091{
2092#if defined(CONFIG_NFS_V4_1)
2093 if (args->sa_session)
Trond Myklebusta4432342010-06-16 09:52:27 -04002094 return args->sa_session->clp->cl_mvops->minor_version;
Benny Halevy66cc0422009-04-01 09:22:10 -04002095#endif /* CONFIG_NFS_V4_1 */
2096 return 0;
2097}
2098
Linus Torvalds1da177e2005-04-16 15:20:36 -07002099/*
2100 * Encode an ACCESS request
2101 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002102static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr,
2103 const struct nfs4_accessargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002104{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002105 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002106 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002107 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002108
Chuck Lever9f06c712010-12-14 14:59:18 +00002109 encode_compound_hdr(xdr, req, &hdr);
2110 encode_sequence(xdr, &args->seq_args, &hdr);
2111 encode_putfh(xdr, args->fh, &hdr);
2112 encode_access(xdr, args->access, &hdr);
2113 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002114 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002115}
2116
2117/*
2118 * Encode LOOKUP request
2119 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002120static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr,
2121 const struct nfs4_lookup_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002122{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002123 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002124 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002125 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002126
Chuck Lever9f06c712010-12-14 14:59:18 +00002127 encode_compound_hdr(xdr, req, &hdr);
2128 encode_sequence(xdr, &args->seq_args, &hdr);
2129 encode_putfh(xdr, args->dir_fh, &hdr);
2130 encode_lookup(xdr, args->name, &hdr);
2131 encode_getfh(xdr, &hdr);
2132 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002133 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002134}
2135
2136/*
2137 * Encode LOOKUP_ROOT request
2138 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002139static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req,
2140 struct xdr_stream *xdr,
2141 const struct nfs4_lookup_root_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002142{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002143 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002144 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002145 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002146
Chuck Lever9f06c712010-12-14 14:59:18 +00002147 encode_compound_hdr(xdr, req, &hdr);
2148 encode_sequence(xdr, &args->seq_args, &hdr);
2149 encode_putrootfh(xdr, &hdr);
2150 encode_getfh(xdr, &hdr);
2151 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002152 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002153}
2154
2155/*
2156 * Encode REMOVE request
2157 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002158static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr,
2159 const struct nfs_removeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002160{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002161 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002162 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002163 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002164
Chuck Lever9f06c712010-12-14 14:59:18 +00002165 encode_compound_hdr(xdr, req, &hdr);
2166 encode_sequence(xdr, &args->seq_args, &hdr);
2167 encode_putfh(xdr, args->fh, &hdr);
2168 encode_remove(xdr, &args->name, &hdr);
2169 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002170 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002171}
2172
2173/*
2174 * Encode RENAME request
2175 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002176static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr,
2177 const struct nfs_renameargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002178{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002179 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002180 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002181 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002182
Chuck Lever9f06c712010-12-14 14:59:18 +00002183 encode_compound_hdr(xdr, req, &hdr);
2184 encode_sequence(xdr, &args->seq_args, &hdr);
2185 encode_putfh(xdr, args->old_dir, &hdr);
2186 encode_savefh(xdr, &hdr);
2187 encode_putfh(xdr, args->new_dir, &hdr);
2188 encode_rename(xdr, args->old_name, args->new_name, &hdr);
2189 encode_getfattr(xdr, args->bitmask, &hdr);
2190 encode_restorefh(xdr, &hdr);
2191 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002192 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002193}
2194
2195/*
2196 * Encode LINK request
2197 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002198static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr,
2199 const struct nfs4_link_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002200{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002201 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002202 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002203 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002204
Chuck Lever9f06c712010-12-14 14:59:18 +00002205 encode_compound_hdr(xdr, req, &hdr);
2206 encode_sequence(xdr, &args->seq_args, &hdr);
2207 encode_putfh(xdr, args->fh, &hdr);
2208 encode_savefh(xdr, &hdr);
2209 encode_putfh(xdr, args->dir_fh, &hdr);
2210 encode_link(xdr, args->name, &hdr);
2211 encode_getfattr(xdr, args->bitmask, &hdr);
2212 encode_restorefh(xdr, &hdr);
2213 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002214 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002215}
2216
2217/*
2218 * Encode CREATE request
2219 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002220static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr,
2221 const struct nfs4_create_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002222{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002223 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002224 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002225 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002226
Chuck Lever9f06c712010-12-14 14:59:18 +00002227 encode_compound_hdr(xdr, req, &hdr);
2228 encode_sequence(xdr, &args->seq_args, &hdr);
2229 encode_putfh(xdr, args->dir_fh, &hdr);
2230 encode_savefh(xdr, &hdr);
2231 encode_create(xdr, args, &hdr);
2232 encode_getfh(xdr, &hdr);
2233 encode_getfattr(xdr, args->bitmask, &hdr);
2234 encode_restorefh(xdr, &hdr);
2235 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002236 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002237}
2238
2239/*
2240 * Encode SYMLINK request
2241 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002242static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr,
2243 const struct nfs4_create_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002244{
Chuck Lever9f06c712010-12-14 14:59:18 +00002245 nfs4_xdr_enc_create(req, xdr, args);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002246}
2247
2248/*
2249 * Encode GETATTR request
2250 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002251static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr,
2252 const struct nfs4_getattr_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002253{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002254 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002255 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002256 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002257
Chuck Lever9f06c712010-12-14 14:59:18 +00002258 encode_compound_hdr(xdr, req, &hdr);
2259 encode_sequence(xdr, &args->seq_args, &hdr);
2260 encode_putfh(xdr, args->fh, &hdr);
2261 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002262 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002263}
2264
2265/*
2266 * Encode a CLOSE request
2267 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002268static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
2269 struct nfs_closeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002270{
Andy Adamson05d564f2008-12-23 16:06:15 -05002271 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002272 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Andy Adamson05d564f2008-12-23 16:06:15 -05002273 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002274
Chuck Lever9f06c712010-12-14 14:59:18 +00002275 encode_compound_hdr(xdr, req, &hdr);
2276 encode_sequence(xdr, &args->seq_args, &hdr);
2277 encode_putfh(xdr, args->fh, &hdr);
2278 encode_close(xdr, args, &hdr);
2279 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002280 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002281}
2282
2283/*
2284 * Encode an OPEN request
2285 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002286static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
2287 struct nfs_openargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002288{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002289 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002290 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002291 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002292
Chuck Lever9f06c712010-12-14 14:59:18 +00002293 encode_compound_hdr(xdr, req, &hdr);
2294 encode_sequence(xdr, &args->seq_args, &hdr);
2295 encode_putfh(xdr, args->fh, &hdr);
2296 encode_savefh(xdr, &hdr);
2297 encode_open(xdr, args, &hdr);
2298 encode_getfh(xdr, &hdr);
2299 encode_getfattr(xdr, args->bitmask, &hdr);
2300 encode_restorefh(xdr, &hdr);
Trond Myklebust6926afd2012-01-07 13:22:46 -05002301 encode_getfattr(xdr, args->dir_bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002302 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002303}
2304
2305/*
2306 * Encode an OPEN_CONFIRM request
2307 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002308static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req,
2309 struct xdr_stream *xdr,
2310 struct nfs_open_confirmargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002311{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002312 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002313 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002314 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002315
Chuck Lever9f06c712010-12-14 14:59:18 +00002316 encode_compound_hdr(xdr, req, &hdr);
2317 encode_putfh(xdr, args->fh, &hdr);
2318 encode_open_confirm(xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002319 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002320}
2321
2322/*
2323 * Encode an OPEN request with no attributes.
2324 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002325static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req,
2326 struct xdr_stream *xdr,
2327 struct nfs_openargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002328{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002329 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002330 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002331 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002332
Chuck Lever9f06c712010-12-14 14:59:18 +00002333 encode_compound_hdr(xdr, req, &hdr);
2334 encode_sequence(xdr, &args->seq_args, &hdr);
2335 encode_putfh(xdr, args->fh, &hdr);
2336 encode_open(xdr, args, &hdr);
2337 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002338 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002339}
2340
2341/*
2342 * Encode an OPEN_DOWNGRADE request
2343 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002344static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req,
2345 struct xdr_stream *xdr,
2346 struct nfs_closeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002347{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002348 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002349 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002350 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002351
Chuck Lever9f06c712010-12-14 14:59:18 +00002352 encode_compound_hdr(xdr, req, &hdr);
2353 encode_sequence(xdr, &args->seq_args, &hdr);
2354 encode_putfh(xdr, args->fh, &hdr);
2355 encode_open_downgrade(xdr, args, &hdr);
2356 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002357 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002358}
2359
2360/*
2361 * Encode a LOCK request
2362 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002363static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr,
2364 struct nfs_lock_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002365{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002366 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002367 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002368 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002369
Chuck Lever9f06c712010-12-14 14:59:18 +00002370 encode_compound_hdr(xdr, req, &hdr);
2371 encode_sequence(xdr, &args->seq_args, &hdr);
2372 encode_putfh(xdr, args->fh, &hdr);
2373 encode_lock(xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002374 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002375}
2376
2377/*
2378 * Encode a LOCKT request
2379 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002380static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr,
2381 struct nfs_lockt_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002382{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002383 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002384 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002385 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002386
Chuck Lever9f06c712010-12-14 14:59:18 +00002387 encode_compound_hdr(xdr, req, &hdr);
2388 encode_sequence(xdr, &args->seq_args, &hdr);
2389 encode_putfh(xdr, args->fh, &hdr);
2390 encode_lockt(xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002391 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002392}
2393
2394/*
2395 * Encode a LOCKU request
2396 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002397static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr,
2398 struct nfs_locku_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002399{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002400 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002401 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002402 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002403
Chuck Lever9f06c712010-12-14 14:59:18 +00002404 encode_compound_hdr(xdr, req, &hdr);
2405 encode_sequence(xdr, &args->seq_args, &hdr);
2406 encode_putfh(xdr, args->fh, &hdr);
2407 encode_locku(xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002408 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002409}
2410
Chuck Lever9f06c712010-12-14 14:59:18 +00002411static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req,
2412 struct xdr_stream *xdr,
2413 struct nfs_release_lockowner_args *args)
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04002414{
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04002415 struct compound_hdr hdr = {
2416 .minorversion = 0,
2417 };
2418
Chuck Lever9f06c712010-12-14 14:59:18 +00002419 encode_compound_hdr(xdr, req, &hdr);
2420 encode_release_lockowner(xdr, &args->lock_owner, &hdr);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04002421 encode_nops(&hdr);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04002422}
2423
Linus Torvalds1da177e2005-04-16 15:20:36 -07002424/*
2425 * Encode a READLINK request
2426 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002427static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr,
2428 const struct nfs4_readlink *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002429{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002430 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002431 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002432 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002433
Chuck Lever9f06c712010-12-14 14:59:18 +00002434 encode_compound_hdr(xdr, req, &hdr);
2435 encode_sequence(xdr, &args->seq_args, &hdr);
2436 encode_putfh(xdr, args->fh, &hdr);
2437 encode_readlink(xdr, args, req, &hdr);
Trond Myklebuste3a535e2007-07-19 10:03:38 -04002438
Benny Halevy28f56692009-04-01 09:22:09 -04002439 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
Trond Myklebuste3a535e2007-07-19 10:03:38 -04002440 args->pgbase, args->pglen);
Andy Adamsond0179312008-12-23 16:06:17 -05002441 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002442}
2443
2444/*
2445 * Encode a READDIR request
2446 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002447static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr,
2448 const struct nfs4_readdir_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002449{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002450 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002451 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002452 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002453
Chuck Lever9f06c712010-12-14 14:59:18 +00002454 encode_compound_hdr(xdr, req, &hdr);
2455 encode_sequence(xdr, &args->seq_args, &hdr);
2456 encode_putfh(xdr, args->fh, &hdr);
2457 encode_readdir(xdr, args, req, &hdr);
Trond Myklebustd6ac02d2007-07-19 10:03:37 -04002458
Benny Halevy28f56692009-04-01 09:22:09 -04002459 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
Trond Myklebustd6ac02d2007-07-19 10:03:37 -04002460 args->pgbase, args->count);
2461 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
Benny Halevy28f56692009-04-01 09:22:09 -04002462 __func__, hdr.replen << 2, args->pages,
Trond Myklebustd6ac02d2007-07-19 10:03:37 -04002463 args->pgbase, args->count);
Andy Adamsond0179312008-12-23 16:06:17 -05002464 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002465}
2466
2467/*
2468 * Encode a READ request
2469 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002470static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr,
2471 struct nfs_readargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002472{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002473 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002474 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002475 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002476
Chuck Lever9f06c712010-12-14 14:59:18 +00002477 encode_compound_hdr(xdr, req, &hdr);
2478 encode_sequence(xdr, &args->seq_args, &hdr);
2479 encode_putfh(xdr, args->fh, &hdr);
2480 encode_read(xdr, args, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002481
Benny Halevy28f56692009-04-01 09:22:09 -04002482 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002483 args->pages, args->pgbase, args->count);
\"Talpey, Thomas\4f22ccc2007-09-10 13:44:58 -04002484 req->rq_rcv_buf.flags |= XDRBUF_READ;
Andy Adamsond0179312008-12-23 16:06:17 -05002485 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002486}
2487
2488/*
2489 * Encode an SETATTR request
2490 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002491static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr,
2492 struct nfs_setattrargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002493{
Andy Adamson05d564f2008-12-23 16:06:15 -05002494 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002495 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Andy Adamson05d564f2008-12-23 16:06:15 -05002496 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002497
Chuck Lever9f06c712010-12-14 14:59:18 +00002498 encode_compound_hdr(xdr, req, &hdr);
2499 encode_sequence(xdr, &args->seq_args, &hdr);
2500 encode_putfh(xdr, args->fh, &hdr);
2501 encode_setattr(xdr, args, args->server, &hdr);
2502 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002503 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002504}
2505
2506/*
J. Bruce Fields029d1052005-06-22 17:16:22 +00002507 * Encode a GETACL request
2508 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002509static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
2510 struct nfs_getaclargs *args)
J. Bruce Fields029d1052005-06-22 17:16:22 +00002511{
J. Bruce Fields029d1052005-06-22 17:16:22 +00002512 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002513 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
J. Bruce Fields029d1052005-06-22 17:16:22 +00002514 };
Benny Halevy28f56692009-04-01 09:22:09 -04002515 uint32_t replen;
J. Bruce Fields029d1052005-06-22 17:16:22 +00002516
Chuck Lever9f06c712010-12-14 14:59:18 +00002517 encode_compound_hdr(xdr, req, &hdr);
2518 encode_sequence(xdr, &args->seq_args, &hdr);
2519 encode_putfh(xdr, args->fh, &hdr);
Andy Adamsonbf118a32011-12-07 11:55:27 -05002520 replen = hdr.replen + op_decode_hdr_maxsz + 1;
Chuck Lever9f06c712010-12-14 14:59:18 +00002521 encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002522
Benny Halevy28f56692009-04-01 09:22:09 -04002523 xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
J. Bruce Fields029d1052005-06-22 17:16:22 +00002524 args->acl_pages, args->acl_pgbase, args->acl_len);
Andy Adamsonbf118a32011-12-07 11:55:27 -05002525 xdr_set_scratch_buffer(xdr, page_address(args->acl_scratch), PAGE_SIZE);
2526
Andy Adamsond0179312008-12-23 16:06:17 -05002527 encode_nops(&hdr);
J. Bruce Fields029d1052005-06-22 17:16:22 +00002528}
2529
2530/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002531 * Encode a WRITE request
2532 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002533static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr,
2534 struct nfs_writeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002535{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002536 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002537 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002538 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002539
Chuck Lever9f06c712010-12-14 14:59:18 +00002540 encode_compound_hdr(xdr, req, &hdr);
2541 encode_sequence(xdr, &args->seq_args, &hdr);
2542 encode_putfh(xdr, args->fh, &hdr);
2543 encode_write(xdr, args, &hdr);
\"Talpey, Thomas\4f22ccc2007-09-10 13:44:58 -04002544 req->rq_snd_buf.flags |= XDRBUF_WRITE;
Fred Isaman7ffd1062011-03-03 15:13:46 +00002545 if (args->bitmask)
2546 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002547 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002548}
2549
2550/*
2551 * a COMMIT request
2552 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002553static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
2554 struct nfs_writeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002555{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002556 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002557 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002558 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002559
Chuck Lever9f06c712010-12-14 14:59:18 +00002560 encode_compound_hdr(xdr, req, &hdr);
2561 encode_sequence(xdr, &args->seq_args, &hdr);
2562 encode_putfh(xdr, args->fh, &hdr);
2563 encode_commit(xdr, args, &hdr);
Fred Isaman988b6dc2011-03-23 13:27:52 +00002564 if (args->bitmask)
2565 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002566 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002567}
2568
2569/*
2570 * FSINFO request
2571 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002572static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
2573 struct nfs4_fsinfo_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002574{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002575 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002576 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002577 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002578
Chuck Lever9f06c712010-12-14 14:59:18 +00002579 encode_compound_hdr(xdr, req, &hdr);
2580 encode_sequence(xdr, &args->seq_args, &hdr);
2581 encode_putfh(xdr, args->fh, &hdr);
2582 encode_fsinfo(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002583 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002584}
2585
2586/*
2587 * a PATHCONF request
2588 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002589static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
2590 const struct nfs4_pathconf_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002591{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002592 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002593 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002594 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002595
Chuck Lever9f06c712010-12-14 14:59:18 +00002596 encode_compound_hdr(xdr, req, &hdr);
2597 encode_sequence(xdr, &args->seq_args, &hdr);
2598 encode_putfh(xdr, args->fh, &hdr);
2599 encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0],
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002600 &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002601 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002602}
2603
2604/*
2605 * a STATFS request
2606 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002607static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
2608 const struct nfs4_statfs_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002609{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002610 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002611 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002612 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002613
Chuck Lever9f06c712010-12-14 14:59:18 +00002614 encode_compound_hdr(xdr, req, &hdr);
2615 encode_sequence(xdr, &args->seq_args, &hdr);
2616 encode_putfh(xdr, args->fh, &hdr);
2617 encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0],
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002618 args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002619 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002620}
2621
2622/*
2623 * GETATTR_BITMAP request
2624 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002625static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
2626 struct xdr_stream *xdr,
2627 struct nfs4_server_caps_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002628{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002629 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002630 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002631 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002632
Chuck Lever9f06c712010-12-14 14:59:18 +00002633 encode_compound_hdr(xdr, req, &hdr);
2634 encode_sequence(xdr, &args->seq_args, &hdr);
2635 encode_putfh(xdr, args->fhandle, &hdr);
2636 encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002637 FATTR4_WORD0_LINK_SUPPORT|
2638 FATTR4_WORD0_SYMLINK_SUPPORT|
2639 FATTR4_WORD0_ACLSUPPORT, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002640 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002641}
2642
2643/*
2644 * a RENEW request
2645 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002646static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
2647 struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002648{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002649 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002650 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002651 };
2652
Chuck Lever9f06c712010-12-14 14:59:18 +00002653 encode_compound_hdr(xdr, req, &hdr);
2654 encode_renew(xdr, clp, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002655 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002656}
2657
2658/*
2659 * a SETCLIENTID request
2660 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002661static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req,
2662 struct xdr_stream *xdr,
2663 struct nfs4_setclientid *sc)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002664{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002665 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002666 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002667 };
2668
Chuck Lever9f06c712010-12-14 14:59:18 +00002669 encode_compound_hdr(xdr, req, &hdr);
2670 encode_setclientid(xdr, sc, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002671 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002672}
2673
2674/*
2675 * a SETCLIENTID_CONFIRM request
2676 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002677static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req,
2678 struct xdr_stream *xdr,
2679 struct nfs4_setclientid_res *arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002680{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002681 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002682 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002683 };
Fred Isamandae100c2011-07-30 20:52:37 -04002684 const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002685
Chuck Lever9f06c712010-12-14 14:59:18 +00002686 encode_compound_hdr(xdr, req, &hdr);
2687 encode_setclientid_confirm(xdr, arg, &hdr);
2688 encode_putrootfh(xdr, &hdr);
2689 encode_fsinfo(xdr, lease_bitmap, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002690 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002691}
2692
2693/*
2694 * DELEGRETURN request
2695 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002696static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
2697 struct xdr_stream *xdr,
2698 const struct nfs4_delegreturnargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002699{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002700 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002701 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002702 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002703
Chuck Lever9f06c712010-12-14 14:59:18 +00002704 encode_compound_hdr(xdr, req, &hdr);
2705 encode_sequence(xdr, &args->seq_args, &hdr);
2706 encode_putfh(xdr, args->fhandle, &hdr);
2707 encode_delegreturn(xdr, args->stateid, &hdr);
2708 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002709 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002710}
2711
2712/*
Trond Myklebust683b57b2006-06-09 09:34:22 -04002713 * Encode FS_LOCATIONS request
2714 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002715static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
2716 struct xdr_stream *xdr,
2717 struct nfs4_fs_locations_arg *args)
Trond Myklebust683b57b2006-06-09 09:34:22 -04002718{
Trond Myklebust683b57b2006-06-09 09:34:22 -04002719 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002720 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Trond Myklebust683b57b2006-06-09 09:34:22 -04002721 };
Benny Halevy28f56692009-04-01 09:22:09 -04002722 uint32_t replen;
Trond Myklebust683b57b2006-06-09 09:34:22 -04002723
Chuck Lever9f06c712010-12-14 14:59:18 +00002724 encode_compound_hdr(xdr, req, &hdr);
2725 encode_sequence(xdr, &args->seq_args, &hdr);
2726 encode_putfh(xdr, args->dir_fh, &hdr);
2727 encode_lookup(xdr, args->name, &hdr);
Benny Halevy28f56692009-04-01 09:22:09 -04002728 replen = hdr.replen; /* get the attribute into args->page */
Chuck Lever9f06c712010-12-14 14:59:18 +00002729 encode_fs_locations(xdr, args->bitmask, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002730
Benny Halevy28f56692009-04-01 09:22:09 -04002731 xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
Trond Myklebust683b57b2006-06-09 09:34:22 -04002732 0, PAGE_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -05002733 encode_nops(&hdr);
Trond Myklebust683b57b2006-06-09 09:34:22 -04002734}
2735
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00002736/*
2737 * Encode SECINFO request
2738 */
2739static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
2740 struct xdr_stream *xdr,
2741 struct nfs4_secinfo_arg *args)
2742{
2743 struct compound_hdr hdr = {
2744 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2745 };
2746
2747 encode_compound_hdr(xdr, req, &hdr);
2748 encode_sequence(xdr, &args->seq_args, &hdr);
2749 encode_putfh(xdr, args->dir_fh, &hdr);
2750 encode_secinfo(xdr, args->name, &hdr);
2751 encode_nops(&hdr);
2752}
2753
Benny Halevy99fe60d2009-04-01 09:22:29 -04002754#if defined(CONFIG_NFS_V4_1)
2755/*
2756 * EXCHANGE_ID request
2757 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002758static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req,
2759 struct xdr_stream *xdr,
2760 struct nfs41_exchange_id_args *args)
Benny Halevy99fe60d2009-04-01 09:22:29 -04002761{
Benny Halevy99fe60d2009-04-01 09:22:29 -04002762 struct compound_hdr hdr = {
Trond Myklebusta4432342010-06-16 09:52:27 -04002763 .minorversion = args->client->cl_mvops->minor_version,
Benny Halevy99fe60d2009-04-01 09:22:29 -04002764 };
2765
Chuck Lever9f06c712010-12-14 14:59:18 +00002766 encode_compound_hdr(xdr, req, &hdr);
2767 encode_exchange_id(xdr, args, &hdr);
Benny Halevy99fe60d2009-04-01 09:22:29 -04002768 encode_nops(&hdr);
Benny Halevy99fe60d2009-04-01 09:22:29 -04002769}
Andy Adamson2050f0c2009-04-01 09:22:30 -04002770
2771/*
Andy Adamsonfc931582009-04-01 09:22:31 -04002772 * a CREATE_SESSION request
2773 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002774static void nfs4_xdr_enc_create_session(struct rpc_rqst *req,
2775 struct xdr_stream *xdr,
2776 struct nfs41_create_session_args *args)
Andy Adamsonfc931582009-04-01 09:22:31 -04002777{
Andy Adamsonfc931582009-04-01 09:22:31 -04002778 struct compound_hdr hdr = {
Trond Myklebusta4432342010-06-16 09:52:27 -04002779 .minorversion = args->client->cl_mvops->minor_version,
Andy Adamsonfc931582009-04-01 09:22:31 -04002780 };
2781
Chuck Lever9f06c712010-12-14 14:59:18 +00002782 encode_compound_hdr(xdr, req, &hdr);
2783 encode_create_session(xdr, args, &hdr);
Andy Adamsonfc931582009-04-01 09:22:31 -04002784 encode_nops(&hdr);
Andy Adamsonfc931582009-04-01 09:22:31 -04002785}
2786
2787/*
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002788 * a DESTROY_SESSION request
2789 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002790static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req,
2791 struct xdr_stream *xdr,
2792 struct nfs4_session *session)
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002793{
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002794 struct compound_hdr hdr = {
Trond Myklebusta4432342010-06-16 09:52:27 -04002795 .minorversion = session->clp->cl_mvops->minor_version,
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002796 };
2797
Chuck Lever9f06c712010-12-14 14:59:18 +00002798 encode_compound_hdr(xdr, req, &hdr);
2799 encode_destroy_session(xdr, session, &hdr);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002800 encode_nops(&hdr);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002801}
2802
2803/*
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002804 * a SEQUENCE request
2805 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002806static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr,
2807 struct nfs4_sequence_args *args)
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002808{
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002809 struct compound_hdr hdr = {
2810 .minorversion = nfs4_xdr_minorversion(args),
2811 };
2812
Chuck Lever9f06c712010-12-14 14:59:18 +00002813 encode_compound_hdr(xdr, req, &hdr);
2814 encode_sequence(xdr, args, &hdr);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002815 encode_nops(&hdr);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002816}
2817
2818/*
Andy Adamson2050f0c2009-04-01 09:22:30 -04002819 * a GET_LEASE_TIME request
2820 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002821static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req,
2822 struct xdr_stream *xdr,
2823 struct nfs4_get_lease_time_args *args)
Andy Adamson2050f0c2009-04-01 09:22:30 -04002824{
Andy Adamson2050f0c2009-04-01 09:22:30 -04002825 struct compound_hdr hdr = {
2826 .minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
2827 };
Fred Isamandae100c2011-07-30 20:52:37 -04002828 const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME };
Andy Adamson2050f0c2009-04-01 09:22:30 -04002829
Chuck Lever9f06c712010-12-14 14:59:18 +00002830 encode_compound_hdr(xdr, req, &hdr);
2831 encode_sequence(xdr, &args->la_seq_args, &hdr);
2832 encode_putrootfh(xdr, &hdr);
2833 encode_fsinfo(xdr, lease_bitmap, &hdr);
Andy Adamson2050f0c2009-04-01 09:22:30 -04002834 encode_nops(&hdr);
Andy Adamson2050f0c2009-04-01 09:22:30 -04002835}
Ricardo Labiaga180197532009-12-05 16:08:40 -05002836
2837/*
2838 * a RECLAIM_COMPLETE request
2839 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002840static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req,
2841 struct xdr_stream *xdr,
2842 struct nfs41_reclaim_complete_args *args)
Ricardo Labiaga180197532009-12-05 16:08:40 -05002843{
Ricardo Labiaga180197532009-12-05 16:08:40 -05002844 struct compound_hdr hdr = {
2845 .minorversion = nfs4_xdr_minorversion(&args->seq_args)
2846 };
2847
Chuck Lever9f06c712010-12-14 14:59:18 +00002848 encode_compound_hdr(xdr, req, &hdr);
2849 encode_sequence(xdr, &args->seq_args, &hdr);
2850 encode_reclaim_complete(xdr, args, &hdr);
Ricardo Labiaga180197532009-12-05 16:08:40 -05002851 encode_nops(&hdr);
Ricardo Labiaga180197532009-12-05 16:08:40 -05002852}
2853
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002854/*
Andy Adamson7f11d8d2011-07-30 20:52:35 -04002855 * Encode GETDEVICELIST request
2856 */
2857static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req,
2858 struct xdr_stream *xdr,
2859 struct nfs4_getdevicelist_args *args)
2860{
2861 struct compound_hdr hdr = {
2862 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2863 };
2864
2865 encode_compound_hdr(xdr, req, &hdr);
2866 encode_sequence(xdr, &args->seq_args, &hdr);
2867 encode_putfh(xdr, args->fh, &hdr);
2868 encode_getdevicelist(xdr, args, &hdr);
2869 encode_nops(&hdr);
2870}
2871
2872/*
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002873 * Encode GETDEVICEINFO request
2874 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002875static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req,
2876 struct xdr_stream *xdr,
2877 struct nfs4_getdeviceinfo_args *args)
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002878{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002879 struct compound_hdr hdr = {
2880 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2881 };
2882
Chuck Lever9f06c712010-12-14 14:59:18 +00002883 encode_compound_hdr(xdr, req, &hdr);
2884 encode_sequence(xdr, &args->seq_args, &hdr);
2885 encode_getdeviceinfo(xdr, args, &hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002886
2887 /* set up reply kvec. Subtract notification bitmap max size (2)
2888 * so that notification bitmap is put in xdr_buf tail */
2889 xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2,
2890 args->pdev->pages, args->pdev->pgbase,
2891 args->pdev->pglen);
2892
2893 encode_nops(&hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002894}
2895
2896/*
2897 * Encode LAYOUTGET request
2898 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002899static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
2900 struct xdr_stream *xdr,
2901 struct nfs4_layoutget_args *args)
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002902{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002903 struct compound_hdr hdr = {
2904 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2905 };
2906
Chuck Lever9f06c712010-12-14 14:59:18 +00002907 encode_compound_hdr(xdr, req, &hdr);
2908 encode_sequence(xdr, &args->seq_args, &hdr);
2909 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2910 encode_layoutget(xdr, args, &hdr);
Weston Andros Adamson35124a02011-03-24 16:48:21 -04002911
2912 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
2913 args->layout.pages, 0, args->layout.pglen);
2914
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002915 encode_nops(&hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002916}
Andy Adamson863a3c62011-03-23 13:27:54 +00002917
2918/*
2919 * Encode LAYOUTCOMMIT request
2920 */
Benny Halevycbe82602011-05-22 19:52:37 +03002921static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req,
2922 struct xdr_stream *xdr,
2923 struct nfs4_layoutcommit_args *args)
Andy Adamson863a3c62011-03-23 13:27:54 +00002924{
Benny Halevyac7db722011-05-22 19:53:48 +03002925 struct nfs4_layoutcommit_data *data =
2926 container_of(args, struct nfs4_layoutcommit_data, args);
Andy Adamson863a3c62011-03-23 13:27:54 +00002927 struct compound_hdr hdr = {
2928 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2929 };
2930
2931 encode_compound_hdr(xdr, req, &hdr);
2932 encode_sequence(xdr, &args->seq_args, &hdr);
2933 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
Benny Halevyac7db722011-05-22 19:53:48 +03002934 encode_layoutcommit(xdr, data->args.inode, args, &hdr);
Andy Adamson863a3c62011-03-23 13:27:54 +00002935 encode_getfattr(xdr, args->bitmask, &hdr);
2936 encode_nops(&hdr);
Benny Halevycbe82602011-05-22 19:52:37 +03002937}
2938
2939/*
2940 * Encode LAYOUTRETURN request
2941 */
2942static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req,
2943 struct xdr_stream *xdr,
2944 struct nfs4_layoutreturn_args *args)
2945{
2946 struct compound_hdr hdr = {
2947 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2948 };
2949
2950 encode_compound_hdr(xdr, req, &hdr);
2951 encode_sequence(xdr, &args->seq_args, &hdr);
2952 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2953 encode_layoutreturn(xdr, args, &hdr);
2954 encode_nops(&hdr);
Andy Adamson863a3c62011-03-23 13:27:54 +00002955}
Bryan Schumakerfca78d62011-06-02 14:59:07 -04002956
2957/*
2958 * Encode SECINFO_NO_NAME request
2959 */
2960static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
2961 struct xdr_stream *xdr,
2962 struct nfs41_secinfo_no_name_args *args)
2963{
2964 struct compound_hdr hdr = {
2965 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2966 };
2967
2968 encode_compound_hdr(xdr, req, &hdr);
2969 encode_sequence(xdr, &args->seq_args, &hdr);
2970 encode_putrootfh(xdr, &hdr);
2971 encode_secinfo_no_name(xdr, args, &hdr);
2972 encode_nops(&hdr);
2973 return 0;
2974}
Bryan Schumaker7d974792011-06-02 14:59:08 -04002975
2976/*
2977 * Encode TEST_STATEID request
2978 */
2979static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req,
2980 struct xdr_stream *xdr,
2981 struct nfs41_test_stateid_args *args)
2982{
2983 struct compound_hdr hdr = {
2984 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2985 };
2986
2987 encode_compound_hdr(xdr, req, &hdr);
2988 encode_sequence(xdr, &args->seq_args, &hdr);
2989 encode_test_stateid(xdr, args, &hdr);
2990 encode_nops(&hdr);
2991}
Bryan Schumaker9aeda352011-06-02 14:59:09 -04002992
2993/*
2994 * Encode FREE_STATEID request
2995 */
2996static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req,
2997 struct xdr_stream *xdr,
2998 struct nfs41_free_stateid_args *args)
2999{
3000 struct compound_hdr hdr = {
3001 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
3002 };
3003
3004 encode_compound_hdr(xdr, req, &hdr);
3005 encode_sequence(xdr, &args->seq_args, &hdr);
3006 encode_free_stateid(xdr, args, &hdr);
3007 encode_nops(&hdr);
3008}
Benny Halevy99fe60d2009-04-01 09:22:29 -04003009#endif /* CONFIG_NFS_V4_1 */
3010
Benny Halevy686841b2009-08-14 17:19:48 +03003011static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
3012{
3013 dprintk("nfs: %s: prematurely hit end of receive buffer. "
3014 "Remaining buffer length is %tu words.\n",
3015 func, xdr->end - xdr->p);
3016}
Linus Torvalds1da177e2005-04-16 15:20:36 -07003017
Trond Myklebust683b57b2006-06-09 09:34:22 -04003018static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003019{
Al Viro8687b632006-10-19 23:28:48 -07003020 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003021
Benny Halevyc0eae662009-08-14 17:20:14 +03003022 p = xdr_inline_decode(xdr, 4);
3023 if (unlikely(!p))
3024 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003025 *len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003026 p = xdr_inline_decode(xdr, *len);
3027 if (unlikely(!p))
3028 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003029 *string = (char *)p;
3030 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003031out_overflow:
3032 print_overflow_msg(__func__, xdr);
3033 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003034}
3035
3036static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
3037{
Al Viro8687b632006-10-19 23:28:48 -07003038 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003039
Benny Halevyc0eae662009-08-14 17:20:14 +03003040 p = xdr_inline_decode(xdr, 8);
3041 if (unlikely(!p))
3042 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003043 hdr->status = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03003044 hdr->taglen = be32_to_cpup(p);
Andy Adamson6c0195a2008-12-23 16:06:15 -05003045
Benny Halevyc0eae662009-08-14 17:20:14 +03003046 p = xdr_inline_decode(xdr, hdr->taglen + 4);
3047 if (unlikely(!p))
3048 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003049 hdr->tag = (char *)p;
3050 p += XDR_QUADLEN(hdr->taglen);
Benny Halevycccddf42009-08-14 17:20:19 +03003051 hdr->nops = be32_to_cpup(p);
Benny Halevyaadf6152008-12-23 16:06:13 -05003052 if (unlikely(hdr->nops < 1))
3053 return nfs4_stat_to_errno(hdr->status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003054 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003055out_overflow:
3056 print_overflow_msg(__func__, xdr);
3057 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003058}
3059
3060static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
3061{
Al Viro8687b632006-10-19 23:28:48 -07003062 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003063 uint32_t opnum;
3064 int32_t nfserr;
3065
Benny Halevyc0eae662009-08-14 17:20:14 +03003066 p = xdr_inline_decode(xdr, 8);
3067 if (unlikely(!p))
3068 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003069 opnum = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003070 if (opnum != expected) {
Chuck Leverfe82a182007-09-11 18:01:10 -04003071 dprintk("nfs: Server returned operation"
3072 " %d but we issued a request for %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07003073 opnum, expected);
3074 return -EIO;
3075 }
Benny Halevycccddf42009-08-14 17:20:19 +03003076 nfserr = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003077 if (nfserr != NFS_OK)
Benny Halevy856dff32008-03-31 17:39:06 +03003078 return nfs4_stat_to_errno(nfserr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003079 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003080out_overflow:
3081 print_overflow_msg(__func__, xdr);
3082 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003083}
3084
3085/* Dummy routine */
David Howellsadfa6f92006-08-22 20:06:08 -04003086static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003087{
Al Viro8687b632006-10-19 23:28:48 -07003088 __be32 *p;
Trond Myklebust683b57b2006-06-09 09:34:22 -04003089 unsigned int strlen;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003090 char *str;
3091
Benny Halevyc0eae662009-08-14 17:20:14 +03003092 p = xdr_inline_decode(xdr, 12);
3093 if (likely(p))
3094 return decode_opaque_inline(xdr, &strlen, &str);
3095 print_overflow_msg(__func__, xdr);
3096 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003097}
3098
3099static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
3100{
Al Viro8687b632006-10-19 23:28:48 -07003101 uint32_t bmlen;
3102 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003103
Benny Halevyc0eae662009-08-14 17:20:14 +03003104 p = xdr_inline_decode(xdr, 4);
3105 if (unlikely(!p))
3106 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003107 bmlen = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003108
Fred Isamandae100c2011-07-30 20:52:37 -04003109 bitmap[0] = bitmap[1] = bitmap[2] = 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003110 p = xdr_inline_decode(xdr, (bmlen << 2));
3111 if (unlikely(!p))
3112 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003113 if (bmlen > 0) {
Benny Halevy6f723f72009-08-14 17:19:37 +03003114 bitmap[0] = be32_to_cpup(p++);
Fred Isamandae100c2011-07-30 20:52:37 -04003115 if (bmlen > 1) {
3116 bitmap[1] = be32_to_cpup(p++);
3117 if (bmlen > 2)
3118 bitmap[2] = be32_to_cpup(p);
3119 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003120 }
3121 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003122out_overflow:
3123 print_overflow_msg(__func__, xdr);
3124 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003125}
3126
Al Viro8687b632006-10-19 23:28:48 -07003127static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003128{
Al Viro8687b632006-10-19 23:28:48 -07003129 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003130
Benny Halevyc0eae662009-08-14 17:20:14 +03003131 p = xdr_inline_decode(xdr, 4);
3132 if (unlikely(!p))
3133 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003134 *attrlen = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003135 *savep = xdr->p;
3136 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003137out_overflow:
3138 print_overflow_msg(__func__, xdr);
3139 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003140}
3141
3142static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
3143{
3144 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
Roman Borisov3388bff2010-10-13 16:54:51 +04003145 int ret;
3146 ret = decode_attr_bitmap(xdr, bitmask);
3147 if (unlikely(ret < 0))
3148 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003149 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
3150 } else
Fred Isamandae100c2011-07-30 20:52:37 -04003151 bitmask[0] = bitmask[1] = bitmask[2] = 0;
3152 dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__,
3153 bitmask[0], bitmask[1], bitmask[2]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003154 return 0;
3155}
3156
3157static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
3158{
Al Viro8687b632006-10-19 23:28:48 -07003159 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003160 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003161
3162 *type = 0;
3163 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
3164 return -EIO;
3165 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003166 p = xdr_inline_decode(xdr, 4);
3167 if (unlikely(!p))
3168 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003169 *type = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003170 if (*type < NF4REG || *type > NF4NAMEDATTR) {
Harvey Harrison3110ff82008-05-02 13:42:44 -07003171 dprintk("%s: bad type %d\n", __func__, *type);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003172 return -EIO;
3173 }
3174 bitmap[0] &= ~FATTR4_WORD0_TYPE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003175 ret = NFS_ATTR_FATTR_TYPE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003176 }
Trond Myklebustbca79472009-03-11 14:10:26 -04003177 dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]);
Trond Myklebust409924e2009-03-11 14:10:27 -04003178 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003179out_overflow:
3180 print_overflow_msg(__func__, xdr);
3181 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003182}
3183
3184static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
3185{
Al Viro8687b632006-10-19 23:28:48 -07003186 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003187 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003188
3189 *change = 0;
3190 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
3191 return -EIO;
3192 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003193 p = xdr_inline_decode(xdr, 8);
3194 if (unlikely(!p))
3195 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003196 xdr_decode_hyper(p, change);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003197 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003198 ret = NFS_ATTR_FATTR_CHANGE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003199 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003200 dprintk("%s: change attribute=%Lu\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003201 (unsigned long long)*change);
Trond Myklebust409924e2009-03-11 14:10:27 -04003202 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003203out_overflow:
3204 print_overflow_msg(__func__, xdr);
3205 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003206}
3207
3208static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
3209{
Al Viro8687b632006-10-19 23:28:48 -07003210 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003211 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003212
3213 *size = 0;
3214 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
3215 return -EIO;
3216 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003217 p = xdr_inline_decode(xdr, 8);
3218 if (unlikely(!p))
3219 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003220 xdr_decode_hyper(p, size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003221 bitmap[0] &= ~FATTR4_WORD0_SIZE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003222 ret = NFS_ATTR_FATTR_SIZE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003223 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003224 dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size);
Trond Myklebust409924e2009-03-11 14:10:27 -04003225 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003226out_overflow:
3227 print_overflow_msg(__func__, xdr);
3228 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003229}
3230
3231static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3232{
Al Viro8687b632006-10-19 23:28:48 -07003233 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003234
3235 *res = 0;
3236 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
3237 return -EIO;
3238 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003239 p = xdr_inline_decode(xdr, 4);
3240 if (unlikely(!p))
3241 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003242 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003243 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
3244 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003245 dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true");
Linus Torvalds1da177e2005-04-16 15:20:36 -07003246 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003247out_overflow:
3248 print_overflow_msg(__func__, xdr);
3249 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003250}
3251
3252static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3253{
Al Viro8687b632006-10-19 23:28:48 -07003254 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003255
3256 *res = 0;
3257 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
3258 return -EIO;
3259 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003260 p = xdr_inline_decode(xdr, 4);
3261 if (unlikely(!p))
3262 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003263 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003264 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
3265 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003266 dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true");
Linus Torvalds1da177e2005-04-16 15:20:36 -07003267 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003268out_overflow:
3269 print_overflow_msg(__func__, xdr);
3270 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003271}
3272
Trond Myklebust8b4bdcf2006-06-09 09:34:19 -04003273static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003274{
Al Viro8687b632006-10-19 23:28:48 -07003275 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003276 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003277
3278 fsid->major = 0;
3279 fsid->minor = 0;
3280 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
3281 return -EIO;
3282 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003283 p = xdr_inline_decode(xdr, 16);
3284 if (unlikely(!p))
3285 goto out_overflow;
Benny Halevy3ceb4db2009-08-14 17:19:41 +03003286 p = xdr_decode_hyper(p, &fsid->major);
Benny Halevycccddf42009-08-14 17:20:19 +03003287 xdr_decode_hyper(p, &fsid->minor);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003288 bitmap[0] &= ~FATTR4_WORD0_FSID;
Trond Myklebust409924e2009-03-11 14:10:27 -04003289 ret = NFS_ATTR_FATTR_FSID;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003290 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003291 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003292 (unsigned long long)fsid->major,
3293 (unsigned long long)fsid->minor);
Trond Myklebust409924e2009-03-11 14:10:27 -04003294 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003295out_overflow:
3296 print_overflow_msg(__func__, xdr);
3297 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003298}
3299
3300static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3301{
Al Viro8687b632006-10-19 23:28:48 -07003302 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003303
3304 *res = 60;
3305 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
3306 return -EIO;
3307 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003308 p = xdr_inline_decode(xdr, 4);
3309 if (unlikely(!p))
3310 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003311 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003312 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
3313 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003314 dprintk("%s: file size=%u\n", __func__, (unsigned int)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003315 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003316out_overflow:
3317 print_overflow_msg(__func__, xdr);
3318 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003319}
3320
Trond Myklebustee7b75f2011-06-16 13:15:41 -04003321static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res)
Bryan Schumakerae42c702010-10-21 16:33:17 -04003322{
3323 __be32 *p;
3324
3325 if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U)))
3326 return -EIO;
3327 if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) {
3328 p = xdr_inline_decode(xdr, 4);
3329 if (unlikely(!p))
3330 goto out_overflow;
3331 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
Trond Myklebustee7b75f2011-06-16 13:15:41 -04003332 *res = -be32_to_cpup(p);
Bryan Schumakerae42c702010-10-21 16:33:17 -04003333 }
3334 return 0;
3335out_overflow:
3336 print_overflow_msg(__func__, xdr);
3337 return -EIO;
3338}
3339
3340static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh)
3341{
3342 __be32 *p;
3343 int len;
3344
Trond Myklebust7ad07352010-10-23 15:34:20 -04003345 if (fh != NULL)
3346 memset(fh, 0, sizeof(*fh));
Bryan Schumakerae42c702010-10-21 16:33:17 -04003347
3348 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U)))
3349 return -EIO;
3350 if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) {
3351 p = xdr_inline_decode(xdr, 4);
3352 if (unlikely(!p))
3353 goto out_overflow;
3354 len = be32_to_cpup(p);
3355 if (len > NFS4_FHSIZE)
3356 return -EIO;
Bryan Schumakerae42c702010-10-21 16:33:17 -04003357 p = xdr_inline_decode(xdr, len);
3358 if (unlikely(!p))
3359 goto out_overflow;
Trond Myklebust7ad07352010-10-23 15:34:20 -04003360 if (fh != NULL) {
3361 memcpy(fh->data, p, len);
3362 fh->size = len;
3363 }
Bryan Schumakerae42c702010-10-21 16:33:17 -04003364 bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE;
3365 }
3366 return 0;
3367out_overflow:
3368 print_overflow_msg(__func__, xdr);
3369 return -EIO;
3370}
3371
Linus Torvalds1da177e2005-04-16 15:20:36 -07003372static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3373{
Al Viro8687b632006-10-19 23:28:48 -07003374 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003375
3376 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
3377 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
3378 return -EIO;
3379 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003380 p = xdr_inline_decode(xdr, 4);
3381 if (unlikely(!p))
3382 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003383 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003384 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
3385 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003386 dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003387 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003388out_overflow:
3389 print_overflow_msg(__func__, xdr);
3390 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003391}
3392
3393static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3394{
Al Viro8687b632006-10-19 23:28:48 -07003395 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003396 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003397
3398 *fileid = 0;
3399 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
3400 return -EIO;
3401 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003402 p = xdr_inline_decode(xdr, 8);
3403 if (unlikely(!p))
3404 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003405 xdr_decode_hyper(p, fileid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003406 bitmap[0] &= ~FATTR4_WORD0_FILEID;
Trond Myklebust409924e2009-03-11 14:10:27 -04003407 ret = NFS_ATTR_FATTR_FILEID;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003408 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003409 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
Trond Myklebust409924e2009-03-11 14:10:27 -04003410 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003411out_overflow:
3412 print_overflow_msg(__func__, xdr);
3413 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003414}
3415
Manoj Naik99baf622006-06-09 09:34:24 -04003416static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3417{
Al Viro8687b632006-10-19 23:28:48 -07003418 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003419 int ret = 0;
Manoj Naik99baf622006-06-09 09:34:24 -04003420
3421 *fileid = 0;
3422 if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U)))
3423 return -EIO;
3424 if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003425 p = xdr_inline_decode(xdr, 8);
3426 if (unlikely(!p))
3427 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003428 xdr_decode_hyper(p, fileid);
Manoj Naik99baf622006-06-09 09:34:24 -04003429 bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
Trond Myklebust28331a42011-04-27 13:47:52 -04003430 ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID;
Manoj Naik99baf622006-06-09 09:34:24 -04003431 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003432 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
Trond Myklebust409924e2009-03-11 14:10:27 -04003433 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003434out_overflow:
3435 print_overflow_msg(__func__, xdr);
3436 return -EIO;
Manoj Naik99baf622006-06-09 09:34:24 -04003437}
3438
Linus Torvalds1da177e2005-04-16 15:20:36 -07003439static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3440{
Al Viro8687b632006-10-19 23:28:48 -07003441 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003442 int status = 0;
3443
3444 *res = 0;
3445 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
3446 return -EIO;
3447 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003448 p = xdr_inline_decode(xdr, 8);
3449 if (unlikely(!p))
3450 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003451 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003452 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
3453 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003454 dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003455 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003456out_overflow:
3457 print_overflow_msg(__func__, xdr);
3458 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003459}
3460
3461static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3462{
Al Viro8687b632006-10-19 23:28:48 -07003463 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003464 int status = 0;
3465
3466 *res = 0;
3467 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
3468 return -EIO;
3469 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003470 p = xdr_inline_decode(xdr, 8);
3471 if (unlikely(!p))
3472 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003473 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003474 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
3475 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003476 dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003477 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003478out_overflow:
3479 print_overflow_msg(__func__, xdr);
3480 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003481}
3482
3483static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3484{
Al Viro8687b632006-10-19 23:28:48 -07003485 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003486 int status = 0;
3487
3488 *res = 0;
3489 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
3490 return -EIO;
3491 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003492 p = xdr_inline_decode(xdr, 8);
3493 if (unlikely(!p))
3494 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003495 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003496 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
3497 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003498 dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003499 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003500out_overflow:
3501 print_overflow_msg(__func__, xdr);
3502 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003503}
3504
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003505static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
3506{
Chuck Lever464ad6b2007-10-26 13:32:08 -04003507 u32 n;
Al Viro8687b632006-10-19 23:28:48 -07003508 __be32 *p;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003509 int status = 0;
3510
Benny Halevyc0eae662009-08-14 17:20:14 +03003511 p = xdr_inline_decode(xdr, 4);
3512 if (unlikely(!p))
3513 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003514 n = be32_to_cpup(p);
Andy Adamson33a43f22006-06-09 09:34:30 -04003515 if (n == 0)
3516 goto root_path;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003517 dprintk("path ");
3518 path->ncomponents = 0;
3519 while (path->ncomponents < n) {
3520 struct nfs4_string *component = &path->components[path->ncomponents];
3521 status = decode_opaque_inline(xdr, &component->len, &component->data);
3522 if (unlikely(status != 0))
3523 goto out_eio;
3524 if (path->ncomponents != n)
3525 dprintk("/");
3526 dprintk("%s", component->data);
3527 if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS)
3528 path->ncomponents++;
3529 else {
3530 dprintk("cannot parse %d components in path\n", n);
3531 goto out_eio;
3532 }
3533 }
3534out:
3535 dprintk("\n");
3536 return status;
Andy Adamson33a43f22006-06-09 09:34:30 -04003537root_path:
3538/* a root pathname is sent as a zero component4 */
3539 path->ncomponents = 1;
3540 path->components[0].len=0;
3541 path->components[0].data=NULL;
3542 dprintk("path /\n");
3543 goto out;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003544out_eio:
3545 dprintk(" status %d", status);
3546 status = -EIO;
3547 goto out;
Benny Halevyc0eae662009-08-14 17:20:14 +03003548out_overflow:
3549 print_overflow_msg(__func__, xdr);
3550 return -EIO;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003551}
3552
3553static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
Trond Myklebust683b57b2006-06-09 09:34:22 -04003554{
3555 int n;
Al Viro8687b632006-10-19 23:28:48 -07003556 __be32 *p;
Trond Myklebust683b57b2006-06-09 09:34:22 -04003557 int status = -EIO;
3558
3559 if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U)))
3560 goto out;
3561 status = 0;
3562 if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS)))
3563 goto out;
Harvey Harrison3110ff82008-05-02 13:42:44 -07003564 dprintk("%s: fsroot ", __func__);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003565 status = decode_pathname(xdr, &res->fs_path);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003566 if (unlikely(status != 0))
3567 goto out;
Benny Halevyc0eae662009-08-14 17:20:14 +03003568 p = xdr_inline_decode(xdr, 4);
3569 if (unlikely(!p))
3570 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003571 n = be32_to_cpup(p);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003572 if (n <= 0)
3573 goto out_eio;
3574 res->nlocations = 0;
3575 while (res->nlocations < n) {
Chuck Lever464ad6b2007-10-26 13:32:08 -04003576 u32 m;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003577 struct nfs4_fs_location *loc = &res->locations[res->nlocations];
Trond Myklebust683b57b2006-06-09 09:34:22 -04003578
Benny Halevyc0eae662009-08-14 17:20:14 +03003579 p = xdr_inline_decode(xdr, 4);
3580 if (unlikely(!p))
3581 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003582 m = be32_to_cpup(p);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003583
3584 loc->nservers = 0;
Harvey Harrison3110ff82008-05-02 13:42:44 -07003585 dprintk("%s: servers ", __func__);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003586 while (loc->nservers < m) {
3587 struct nfs4_string *server = &loc->servers[loc->nservers];
3588 status = decode_opaque_inline(xdr, &server->len, &server->data);
3589 if (unlikely(status != 0))
3590 goto out_eio;
3591 dprintk("%s ", server->data);
3592 if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS)
3593 loc->nservers++;
3594 else {
Chuck Lever464ad6b2007-10-26 13:32:08 -04003595 unsigned int i;
3596 dprintk("%s: using first %u of %u servers "
3597 "returned for location %u\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003598 __func__,
Chuck Lever464ad6b2007-10-26 13:32:08 -04003599 NFS4_FS_LOCATION_MAXSERVERS,
3600 m, res->nlocations);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003601 for (i = loc->nservers; i < m; i++) {
Trond Myklebust2e42c3e2007-05-14 17:20:41 -04003602 unsigned int len;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003603 char *data;
3604 status = decode_opaque_inline(xdr, &len, &data);
3605 if (unlikely(status != 0))
3606 goto out_eio;
3607 }
3608 }
3609 }
3610 status = decode_pathname(xdr, &loc->rootpath);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003611 if (unlikely(status != 0))
3612 goto out_eio;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003613 if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES)
Trond Myklebust683b57b2006-06-09 09:34:22 -04003614 res->nlocations++;
3615 }
Trond Myklebust409924e2009-03-11 14:10:27 -04003616 if (res->nlocations != 0)
3617 status = NFS_ATTR_FATTR_V4_REFERRAL;
Trond Myklebust683b57b2006-06-09 09:34:22 -04003618out:
Harvey Harrison3110ff82008-05-02 13:42:44 -07003619 dprintk("%s: fs_locations done, error = %d\n", __func__, status);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003620 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003621out_overflow:
3622 print_overflow_msg(__func__, xdr);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003623out_eio:
3624 status = -EIO;
3625 goto out;
3626}
3627
Linus Torvalds1da177e2005-04-16 15:20:36 -07003628static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3629{
Al Viro8687b632006-10-19 23:28:48 -07003630 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003631 int status = 0;
3632
3633 *res = 0;
3634 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
3635 return -EIO;
3636 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003637 p = xdr_inline_decode(xdr, 8);
3638 if (unlikely(!p))
3639 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003640 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003641 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
3642 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003643 dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003644 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003645out_overflow:
3646 print_overflow_msg(__func__, xdr);
3647 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003648}
3649
3650static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
3651{
Al Viro8687b632006-10-19 23:28:48 -07003652 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003653 int status = 0;
3654
3655 *maxlink = 1;
3656 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
3657 return -EIO;
3658 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003659 p = xdr_inline_decode(xdr, 4);
3660 if (unlikely(!p))
3661 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003662 *maxlink = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003663 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
3664 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003665 dprintk("%s: maxlink=%u\n", __func__, *maxlink);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003666 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003667out_overflow:
3668 print_overflow_msg(__func__, xdr);
3669 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003670}
3671
3672static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
3673{
Al Viro8687b632006-10-19 23:28:48 -07003674 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003675 int status = 0;
3676
3677 *maxname = 1024;
3678 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
3679 return -EIO;
3680 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003681 p = xdr_inline_decode(xdr, 4);
3682 if (unlikely(!p))
3683 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003684 *maxname = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003685 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
3686 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003687 dprintk("%s: maxname=%u\n", __func__, *maxname);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003688 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003689out_overflow:
3690 print_overflow_msg(__func__, xdr);
3691 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003692}
3693
3694static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3695{
Al Viro8687b632006-10-19 23:28:48 -07003696 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003697 int status = 0;
3698
3699 *res = 1024;
3700 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
3701 return -EIO;
3702 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
3703 uint64_t maxread;
Benny Halevyc0eae662009-08-14 17:20:14 +03003704 p = xdr_inline_decode(xdr, 8);
3705 if (unlikely(!p))
3706 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003707 xdr_decode_hyper(p, &maxread);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003708 if (maxread > 0x7FFFFFFF)
3709 maxread = 0x7FFFFFFF;
3710 *res = (uint32_t)maxread;
3711 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
3712 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003713 dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003714 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003715out_overflow:
3716 print_overflow_msg(__func__, xdr);
3717 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003718}
3719
3720static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3721{
Al Viro8687b632006-10-19 23:28:48 -07003722 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003723 int status = 0;
3724
3725 *res = 1024;
3726 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
3727 return -EIO;
3728 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
3729 uint64_t maxwrite;
Benny Halevyc0eae662009-08-14 17:20:14 +03003730 p = xdr_inline_decode(xdr, 8);
3731 if (unlikely(!p))
3732 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003733 xdr_decode_hyper(p, &maxwrite);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003734 if (maxwrite > 0x7FFFFFFF)
3735 maxwrite = 0x7FFFFFFF;
3736 *res = (uint32_t)maxwrite;
3737 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
3738 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003739 dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003740 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003741out_overflow:
3742 print_overflow_msg(__func__, xdr);
3743 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003744}
3745
Trond Myklebustbca79472009-03-11 14:10:26 -04003746static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003747{
Trond Myklebustbca79472009-03-11 14:10:26 -04003748 uint32_t tmp;
Al Viro8687b632006-10-19 23:28:48 -07003749 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003750 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003751
3752 *mode = 0;
3753 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
3754 return -EIO;
3755 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003756 p = xdr_inline_decode(xdr, 4);
3757 if (unlikely(!p))
3758 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003759 tmp = be32_to_cpup(p);
Trond Myklebustbca79472009-03-11 14:10:26 -04003760 *mode = tmp & ~S_IFMT;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003761 bitmap[1] &= ~FATTR4_WORD1_MODE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003762 ret = NFS_ATTR_FATTR_MODE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003763 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003764 dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode);
Trond Myklebust409924e2009-03-11 14:10:27 -04003765 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003766out_overflow:
3767 print_overflow_msg(__func__, xdr);
3768 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003769}
3770
3771static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
3772{
Al Viro8687b632006-10-19 23:28:48 -07003773 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003774 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003775
3776 *nlink = 1;
3777 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
3778 return -EIO;
3779 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003780 p = xdr_inline_decode(xdr, 4);
3781 if (unlikely(!p))
3782 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003783 *nlink = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003784 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
Trond Myklebust409924e2009-03-11 14:10:27 -04003785 ret = NFS_ATTR_FATTR_NLINK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003786 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003787 dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink);
Trond Myklebust409924e2009-03-11 14:10:27 -04003788 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003789out_overflow:
3790 print_overflow_msg(__func__, xdr);
3791 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003792}
3793
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003794static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
Trond Myklebust6926afd2012-01-07 13:22:46 -05003795 const struct nfs_server *server, uint32_t *uid,
3796 struct nfs4_string *owner_name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003797{
Al Viro8687b632006-10-19 23:28:48 -07003798 uint32_t len;
3799 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003800 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003801
3802 *uid = -2;
3803 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
3804 return -EIO;
3805 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003806 p = xdr_inline_decode(xdr, 4);
3807 if (unlikely(!p))
3808 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003809 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003810 p = xdr_inline_decode(xdr, len);
3811 if (unlikely(!p))
3812 goto out_overflow;
Trond Myklebust6926afd2012-01-07 13:22:46 -05003813 if (owner_name != NULL) {
3814 owner_name->data = kmemdup(p, len, GFP_NOWAIT);
3815 if (owner_name->data != NULL) {
3816 owner_name->len = len;
3817 ret = NFS_ATTR_FATTR_OWNER_NAME;
3818 }
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003819 } else if (len < XDR_MAX_NETOBJ) {
Trond Myklebuste4fd72a2011-02-22 15:44:31 -08003820 if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0)
Trond Myklebust409924e2009-03-11 14:10:27 -04003821 ret = NFS_ATTR_FATTR_OWNER;
3822 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07003823 dprintk("%s: nfs_map_name_to_uid failed!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003824 __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003825 } else
Chuck Leverfe82a182007-09-11 18:01:10 -04003826 dprintk("%s: name too long (%u)!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003827 __func__, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003828 bitmap[1] &= ~FATTR4_WORD1_OWNER;
3829 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003830 dprintk("%s: uid=%d\n", __func__, (int)*uid);
Trond Myklebust409924e2009-03-11 14:10:27 -04003831 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003832out_overflow:
3833 print_overflow_msg(__func__, xdr);
3834 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003835}
3836
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003837static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
Trond Myklebust6926afd2012-01-07 13:22:46 -05003838 const struct nfs_server *server, uint32_t *gid,
3839 struct nfs4_string *group_name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003840{
Al Viro8687b632006-10-19 23:28:48 -07003841 uint32_t len;
3842 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003843 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003844
3845 *gid = -2;
3846 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
3847 return -EIO;
3848 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003849 p = xdr_inline_decode(xdr, 4);
3850 if (unlikely(!p))
3851 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003852 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003853 p = xdr_inline_decode(xdr, len);
3854 if (unlikely(!p))
3855 goto out_overflow;
Trond Myklebust6926afd2012-01-07 13:22:46 -05003856 if (group_name != NULL) {
3857 group_name->data = kmemdup(p, len, GFP_NOWAIT);
3858 if (group_name->data != NULL) {
3859 group_name->len = len;
3860 ret = NFS_ATTR_FATTR_GROUP_NAME;
3861 }
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003862 } else if (len < XDR_MAX_NETOBJ) {
Trond Myklebuste4fd72a2011-02-22 15:44:31 -08003863 if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0)
Trond Myklebust409924e2009-03-11 14:10:27 -04003864 ret = NFS_ATTR_FATTR_GROUP;
3865 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07003866 dprintk("%s: nfs_map_group_to_gid failed!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003867 __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003868 } else
Chuck Leverfe82a182007-09-11 18:01:10 -04003869 dprintk("%s: name too long (%u)!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003870 __func__, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003871 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
3872 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003873 dprintk("%s: gid=%d\n", __func__, (int)*gid);
Trond Myklebust409924e2009-03-11 14:10:27 -04003874 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003875out_overflow:
3876 print_overflow_msg(__func__, xdr);
3877 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003878}
3879
3880static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
3881{
Al Viro8687b632006-10-19 23:28:48 -07003882 uint32_t major = 0, minor = 0;
3883 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003884 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003885
3886 *rdev = MKDEV(0,0);
3887 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
3888 return -EIO;
3889 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
3890 dev_t tmp;
3891
Benny Halevyc0eae662009-08-14 17:20:14 +03003892 p = xdr_inline_decode(xdr, 8);
3893 if (unlikely(!p))
3894 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003895 major = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03003896 minor = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003897 tmp = MKDEV(major, minor);
3898 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
3899 *rdev = tmp;
3900 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
Trond Myklebust409924e2009-03-11 14:10:27 -04003901 ret = NFS_ATTR_FATTR_RDEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003902 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003903 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor);
Trond Myklebust409924e2009-03-11 14:10:27 -04003904 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003905out_overflow:
3906 print_overflow_msg(__func__, xdr);
3907 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003908}
3909
3910static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3911{
Al Viro8687b632006-10-19 23:28:48 -07003912 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003913 int status = 0;
3914
3915 *res = 0;
3916 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
3917 return -EIO;
3918 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003919 p = xdr_inline_decode(xdr, 8);
3920 if (unlikely(!p))
3921 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003922 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003923 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
3924 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003925 dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003926 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003927out_overflow:
3928 print_overflow_msg(__func__, xdr);
3929 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003930}
3931
3932static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3933{
Al Viro8687b632006-10-19 23:28:48 -07003934 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003935 int status = 0;
3936
3937 *res = 0;
3938 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
3939 return -EIO;
3940 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003941 p = xdr_inline_decode(xdr, 8);
3942 if (unlikely(!p))
3943 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003944 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003945 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
3946 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003947 dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003948 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003949out_overflow:
3950 print_overflow_msg(__func__, xdr);
3951 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003952}
3953
3954static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3955{
Al Viro8687b632006-10-19 23:28:48 -07003956 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003957 int status = 0;
3958
3959 *res = 0;
3960 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
3961 return -EIO;
3962 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003963 p = xdr_inline_decode(xdr, 8);
3964 if (unlikely(!p))
3965 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003966 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003967 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
3968 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003969 dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003970 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003971out_overflow:
3972 print_overflow_msg(__func__, xdr);
3973 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003974}
3975
3976static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
3977{
Al Viro8687b632006-10-19 23:28:48 -07003978 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003979 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003980
3981 *used = 0;
3982 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
3983 return -EIO;
3984 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003985 p = xdr_inline_decode(xdr, 8);
3986 if (unlikely(!p))
3987 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003988 xdr_decode_hyper(p, used);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003989 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
Trond Myklebust409924e2009-03-11 14:10:27 -04003990 ret = NFS_ATTR_FATTR_SPACE_USED;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003991 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003992 dprintk("%s: space used=%Lu\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003993 (unsigned long long)*used);
Trond Myklebust409924e2009-03-11 14:10:27 -04003994 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003995out_overflow:
3996 print_overflow_msg(__func__, xdr);
3997 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003998}
3999
4000static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
4001{
Al Viro8687b632006-10-19 23:28:48 -07004002 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004003 uint64_t sec;
4004 uint32_t nsec;
4005
Benny Halevyc0eae662009-08-14 17:20:14 +03004006 p = xdr_inline_decode(xdr, 12);
4007 if (unlikely(!p))
4008 goto out_overflow;
Benny Halevy3ceb4db2009-08-14 17:19:41 +03004009 p = xdr_decode_hyper(p, &sec);
Benny Halevycccddf42009-08-14 17:20:19 +03004010 nsec = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004011 time->tv_sec = (time_t)sec;
4012 time->tv_nsec = (long)nsec;
4013 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004014out_overflow:
4015 print_overflow_msg(__func__, xdr);
4016 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004017}
4018
4019static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4020{
4021 int status = 0;
4022
4023 time->tv_sec = 0;
4024 time->tv_nsec = 0;
4025 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
4026 return -EIO;
4027 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
4028 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04004029 if (status == 0)
4030 status = NFS_ATTR_FATTR_ATIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004031 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
4032 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07004033 dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004034 return status;
4035}
4036
4037static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4038{
4039 int status = 0;
4040
4041 time->tv_sec = 0;
4042 time->tv_nsec = 0;
4043 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
4044 return -EIO;
4045 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
4046 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04004047 if (status == 0)
4048 status = NFS_ATTR_FATTR_CTIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004049 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
4050 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07004051 dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004052 return status;
4053}
4054
Ricardo Labiaga55b6e772010-10-12 16:30:06 -07004055static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap,
4056 struct timespec *time)
4057{
4058 int status = 0;
4059
4060 time->tv_sec = 0;
4061 time->tv_nsec = 0;
4062 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U)))
4063 return -EIO;
4064 if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) {
4065 status = decode_attr_time(xdr, time);
4066 bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA;
4067 }
4068 dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec,
4069 (long)time->tv_nsec);
4070 return status;
4071}
4072
Linus Torvalds1da177e2005-04-16 15:20:36 -07004073static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4074{
4075 int status = 0;
4076
4077 time->tv_sec = 0;
4078 time->tv_nsec = 0;
4079 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
4080 return -EIO;
4081 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
4082 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04004083 if (status == 0)
4084 status = NFS_ATTR_FATTR_MTIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004085 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
4086 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07004087 dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004088 return status;
4089}
4090
Al Viro8687b632006-10-19 23:28:48 -07004091static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004092{
4093 unsigned int attrwords = XDR_QUADLEN(attrlen);
4094 unsigned int nwords = xdr->p - savep;
4095
4096 if (unlikely(attrwords != nwords)) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004097 dprintk("%s: server returned incorrect attribute length: "
4098 "%u %c %u\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07004099 __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07004100 attrwords << 2,
4101 (attrwords < nwords) ? '<' : '>',
4102 nwords << 2);
4103 return -EIO;
4104 }
4105 return 0;
4106}
4107
4108static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4109{
Al Viro8687b632006-10-19 23:28:48 -07004110 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004111
Benny Halevyc0eae662009-08-14 17:20:14 +03004112 p = xdr_inline_decode(xdr, 20);
4113 if (unlikely(!p))
4114 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004115 cinfo->atomic = be32_to_cpup(p++);
Benny Halevy3ceb4db2009-08-14 17:19:41 +03004116 p = xdr_decode_hyper(p, &cinfo->before);
Benny Halevycccddf42009-08-14 17:20:19 +03004117 xdr_decode_hyper(p, &cinfo->after);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004118 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004119out_overflow:
4120 print_overflow_msg(__func__, xdr);
4121 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004122}
4123
4124static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
4125{
Al Viro8687b632006-10-19 23:28:48 -07004126 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004127 uint32_t supp, acc;
4128 int status;
4129
4130 status = decode_op_hdr(xdr, OP_ACCESS);
4131 if (status)
4132 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004133 p = xdr_inline_decode(xdr, 8);
4134 if (unlikely(!p))
4135 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004136 supp = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004137 acc = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004138 access->supported = supp;
4139 access->access = acc;
4140 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004141out_overflow:
4142 print_overflow_msg(__func__, xdr);
4143 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004144}
4145
Benny Halevy07d30432009-08-14 17:19:52 +03004146static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004147{
Al Viro8687b632006-10-19 23:28:48 -07004148 __be32 *p;
Benny Halevy07d30432009-08-14 17:19:52 +03004149
4150 p = xdr_inline_decode(xdr, len);
4151 if (likely(p)) {
4152 memcpy(buf, p, len);
4153 return 0;
4154 }
4155 print_overflow_msg(__func__, xdr);
4156 return -EIO;
4157}
4158
4159static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
4160{
4161 return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004162}
4163
4164static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
4165{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004166 int status;
4167
4168 status = decode_op_hdr(xdr, OP_CLOSE);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004169 if (status != -EIO)
4170 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004171 if (!status)
4172 status = decode_stateid(xdr, &res->stateid);
4173 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004174}
4175
Benny Halevydb942bb2009-08-14 17:19:56 +03004176static int decode_verifier(struct xdr_stream *xdr, void *verifier)
4177{
4178 return decode_opaque_fixed(xdr, verifier, 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004179}
4180
4181static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
4182{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004183 int status;
4184
4185 status = decode_op_hdr(xdr, OP_COMMIT);
Benny Halevydb942bb2009-08-14 17:19:56 +03004186 if (!status)
4187 status = decode_verifier(xdr, res->verf->verifier);
4188 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004189}
4190
4191static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4192{
Al Viro8687b632006-10-19 23:28:48 -07004193 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004194 uint32_t bmlen;
4195 int status;
4196
4197 status = decode_op_hdr(xdr, OP_CREATE);
4198 if (status)
4199 return status;
4200 if ((status = decode_change_info(xdr, cinfo)))
4201 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004202 p = xdr_inline_decode(xdr, 4);
4203 if (unlikely(!p))
4204 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004205 bmlen = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03004206 p = xdr_inline_decode(xdr, bmlen << 2);
4207 if (likely(p))
4208 return 0;
4209out_overflow:
4210 print_overflow_msg(__func__, xdr);
4211 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004212}
4213
4214static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
4215{
Al Viro8687b632006-10-19 23:28:48 -07004216 __be32 *savep;
Fred Isamandae100c2011-07-30 20:52:37 -04004217 uint32_t attrlen, bitmap[3] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07004218 int status;
4219
4220 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4221 goto xdr_error;
4222 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4223 goto xdr_error;
4224 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4225 goto xdr_error;
4226 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
4227 goto xdr_error;
4228 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
4229 goto xdr_error;
4230 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
4231 goto xdr_error;
4232 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
4233 goto xdr_error;
4234 status = verify_attr_len(xdr, savep, attrlen);
4235xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004236 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004237 return status;
4238}
Andy Adamson6c0195a2008-12-23 16:06:15 -05004239
Linus Torvalds1da177e2005-04-16 15:20:36 -07004240static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
4241{
Al Viro8687b632006-10-19 23:28:48 -07004242 __be32 *savep;
Fred Isamandae100c2011-07-30 20:52:37 -04004243 uint32_t attrlen, bitmap[3] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07004244 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004245
Linus Torvalds1da177e2005-04-16 15:20:36 -07004246 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4247 goto xdr_error;
4248 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4249 goto xdr_error;
4250 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4251 goto xdr_error;
4252
4253 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
4254 goto xdr_error;
4255 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
4256 goto xdr_error;
4257 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
4258 goto xdr_error;
4259 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
4260 goto xdr_error;
4261 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
4262 goto xdr_error;
4263 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
4264 goto xdr_error;
4265
4266 status = verify_attr_len(xdr, savep, attrlen);
4267xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004268 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004269 return status;
4270}
4271
4272static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
4273{
Al Viro8687b632006-10-19 23:28:48 -07004274 __be32 *savep;
Fred Isamandae100c2011-07-30 20:52:37 -04004275 uint32_t attrlen, bitmap[3] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07004276 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004277
Linus Torvalds1da177e2005-04-16 15:20:36 -07004278 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4279 goto xdr_error;
4280 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4281 goto xdr_error;
4282 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4283 goto xdr_error;
4284
4285 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
4286 goto xdr_error;
4287 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
4288 goto xdr_error;
4289
4290 status = verify_attr_len(xdr, savep, attrlen);
4291xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004292 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004293 return status;
4294}
4295
Bryan Schumakerae42c702010-10-21 16:33:17 -04004296static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap,
4297 struct nfs_fattr *fattr, struct nfs_fh *fh,
Trond Myklebust6926afd2012-01-07 13:22:46 -05004298 const struct nfs_server *server)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004299{
Trond Myklebustbca79472009-03-11 14:10:26 -04004300 int status;
4301 umode_t fmode = 0;
Bryan Schumakerae42c702010-10-21 16:33:17 -04004302 uint32_t type;
Trond Myklebustee7b75f2011-06-16 13:15:41 -04004303 int32_t err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004304
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004305 status = decode_attr_type(xdr, bitmap, &type);
4306 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004307 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004308 fattr->mode = 0;
4309 if (status != 0) {
4310 fattr->mode |= nfs_type2fmt[type];
4311 fattr->valid |= status;
4312 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004313
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004314 status = decode_attr_change(xdr, bitmap, &fattr->change_attr);
4315 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004316 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004317 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004318
4319 status = decode_attr_size(xdr, bitmap, &fattr->size);
4320 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004321 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004322 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004323
4324 status = decode_attr_fsid(xdr, bitmap, &fattr->fsid);
4325 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004326 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004327 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004328
Trond Myklebustee7b75f2011-06-16 13:15:41 -04004329 err = 0;
4330 status = decode_attr_error(xdr, bitmap, &err);
Bryan Schumakerae42c702010-10-21 16:33:17 -04004331 if (status < 0)
4332 goto xdr_error;
Trond Myklebustee7b75f2011-06-16 13:15:41 -04004333 if (err == -NFS4ERR_WRONGSEC)
4334 nfs_fixup_secinfo_attributes(fattr, fh);
Bryan Schumakerae42c702010-10-21 16:33:17 -04004335
4336 status = decode_attr_filehandle(xdr, bitmap, fh);
4337 if (status < 0)
4338 goto xdr_error;
4339
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004340 status = decode_attr_fileid(xdr, bitmap, &fattr->fileid);
4341 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004342 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004343 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004344
4345 status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr,
Manoj Naik7aaa0b32006-06-09 09:34:23 -04004346 struct nfs4_fs_locations,
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004347 fattr));
4348 if (status < 0)
Trond Myklebust683b57b2006-06-09 09:34:22 -04004349 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004350 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004351
4352 status = decode_attr_mode(xdr, bitmap, &fmode);
4353 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004354 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004355 if (status != 0) {
4356 fattr->mode |= fmode;
4357 fattr->valid |= status;
4358 }
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004359
4360 status = decode_attr_nlink(xdr, bitmap, &fattr->nlink);
4361 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004362 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004363 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004364
Trond Myklebust6926afd2012-01-07 13:22:46 -05004365 status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004366 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004367 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004368 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004369
Trond Myklebust6926afd2012-01-07 13:22:46 -05004370 status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004371 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004372 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004373 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004374
4375 status = decode_attr_rdev(xdr, bitmap, &fattr->rdev);
4376 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004377 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004378 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004379
4380 status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used);
4381 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004382 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004383 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004384
4385 status = decode_attr_time_access(xdr, bitmap, &fattr->atime);
4386 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004387 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004388 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004389
4390 status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime);
4391 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004392 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004393 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004394
4395 status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime);
4396 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004397 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004398 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004399
Trond Myklebust28331a42011-04-27 13:47:52 -04004400 status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004401 if (status < 0)
Manoj Naik99baf622006-06-09 09:34:24 -04004402 goto xdr_error;
Trond Myklebust28331a42011-04-27 13:47:52 -04004403 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004404
Bryan Schumakerae42c702010-10-21 16:33:17 -04004405xdr_error:
4406 dprintk("%s: xdr returned %d\n", __func__, -status);
4407 return status;
4408}
4409
4410static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr,
Trond Myklebust6926afd2012-01-07 13:22:46 -05004411 struct nfs_fh *fh, const struct nfs_server *server)
Bryan Schumakerae42c702010-10-21 16:33:17 -04004412{
4413 __be32 *savep;
4414 uint32_t attrlen,
Fred Isamandae100c2011-07-30 20:52:37 -04004415 bitmap[3] = {0};
Bryan Schumakerae42c702010-10-21 16:33:17 -04004416 int status;
4417
4418 status = decode_op_hdr(xdr, OP_GETATTR);
4419 if (status < 0)
4420 goto xdr_error;
4421
4422 status = decode_attr_bitmap(xdr, bitmap);
4423 if (status < 0)
4424 goto xdr_error;
4425
4426 status = decode_attr_length(xdr, &attrlen, &savep);
4427 if (status < 0)
4428 goto xdr_error;
4429
Trond Myklebust6926afd2012-01-07 13:22:46 -05004430 status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, server);
Bryan Schumakerae42c702010-10-21 16:33:17 -04004431 if (status < 0)
4432 goto xdr_error;
4433
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004434 status = verify_attr_len(xdr, savep, attrlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004435xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004436 dprintk("%s: xdr returned %d\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004437 return status;
4438}
4439
Bryan Schumakerae42c702010-10-21 16:33:17 -04004440static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr,
Trond Myklebust6926afd2012-01-07 13:22:46 -05004441 const struct nfs_server *server)
Bryan Schumakerae42c702010-10-21 16:33:17 -04004442{
Trond Myklebust6926afd2012-01-07 13:22:46 -05004443 return decode_getfattr_generic(xdr, fattr, NULL, server);
Bryan Schumakerae42c702010-10-21 16:33:17 -04004444}
Linus Torvalds1da177e2005-04-16 15:20:36 -07004445
Andy Adamson504913f2010-10-20 00:17:57 -04004446/*
4447 * Decode potentially multiple layout types. Currently we only support
4448 * one layout driver per file system.
4449 */
4450static int decode_first_pnfs_layout_type(struct xdr_stream *xdr,
4451 uint32_t *layouttype)
4452{
4453 uint32_t *p;
4454 int num;
4455
4456 p = xdr_inline_decode(xdr, 4);
4457 if (unlikely(!p))
4458 goto out_overflow;
4459 num = be32_to_cpup(p);
4460
4461 /* pNFS is not supported by the underlying file system */
4462 if (num == 0) {
4463 *layouttype = 0;
4464 return 0;
4465 }
4466 if (num > 1)
4467 printk(KERN_INFO "%s: Warning: Multiple pNFS layout drivers "
4468 "per filesystem not supported\n", __func__);
4469
4470 /* Decode and set first layout type, move xdr->p past unused types */
4471 p = xdr_inline_decode(xdr, num * 4);
4472 if (unlikely(!p))
4473 goto out_overflow;
4474 *layouttype = be32_to_cpup(p);
4475 return 0;
4476out_overflow:
4477 print_overflow_msg(__func__, xdr);
4478 return -EIO;
4479}
4480
4481/*
4482 * The type of file system exported.
4483 * Note we must ensure that layouttype is set in any non-error case.
4484 */
4485static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap,
4486 uint32_t *layouttype)
4487{
4488 int status = 0;
4489
4490 dprintk("%s: bitmap is %x\n", __func__, bitmap[1]);
4491 if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U)))
4492 return -EIO;
4493 if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) {
4494 status = decode_first_pnfs_layout_type(xdr, layouttype);
4495 bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES;
4496 } else
4497 *layouttype = 0;
4498 return status;
4499}
4500
Fred Isamandae100c2011-07-30 20:52:37 -04004501/*
4502 * The prefered block size for layout directed io
4503 */
4504static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap,
4505 uint32_t *res)
4506{
4507 __be32 *p;
4508
4509 dprintk("%s: bitmap is %x\n", __func__, bitmap[2]);
4510 *res = 0;
4511 if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) {
4512 p = xdr_inline_decode(xdr, 4);
4513 if (unlikely(!p)) {
4514 print_overflow_msg(__func__, xdr);
4515 return -EIO;
4516 }
4517 *res = be32_to_cpup(p);
4518 bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE;
4519 }
4520 return 0;
4521}
4522
Linus Torvalds1da177e2005-04-16 15:20:36 -07004523static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
4524{
Al Viro8687b632006-10-19 23:28:48 -07004525 __be32 *savep;
Fred Isamandae100c2011-07-30 20:52:37 -04004526 uint32_t attrlen, bitmap[3];
Linus Torvalds1da177e2005-04-16 15:20:36 -07004527 int status;
4528
4529 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4530 goto xdr_error;
4531 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4532 goto xdr_error;
4533 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4534 goto xdr_error;
4535
4536 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
4537
4538 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
4539 goto xdr_error;
4540 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
4541 goto xdr_error;
4542 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
4543 goto xdr_error;
4544 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
4545 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
4546 goto xdr_error;
4547 fsinfo->wtpref = fsinfo->wtmax;
Ricardo Labiaga55b6e772010-10-12 16:30:06 -07004548 status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta);
4549 if (status != 0)
4550 goto xdr_error;
Andy Adamson504913f2010-10-20 00:17:57 -04004551 status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype);
4552 if (status != 0)
4553 goto xdr_error;
Fred Isamandae100c2011-07-30 20:52:37 -04004554 status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize);
4555 if (status)
4556 goto xdr_error;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004557
4558 status = verify_attr_len(xdr, savep, attrlen);
4559xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004560 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004561 return status;
4562}
4563
4564static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
4565{
Al Viro8687b632006-10-19 23:28:48 -07004566 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004567 uint32_t len;
4568 int status;
4569
Trond Myklebust99367812007-07-17 21:52:41 -04004570 /* Zero handle first to allow comparisons */
4571 memset(fh, 0, sizeof(*fh));
4572
Linus Torvalds1da177e2005-04-16 15:20:36 -07004573 status = decode_op_hdr(xdr, OP_GETFH);
4574 if (status)
4575 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004576
Benny Halevyc0eae662009-08-14 17:20:14 +03004577 p = xdr_inline_decode(xdr, 4);
4578 if (unlikely(!p))
4579 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004580 len = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004581 if (len > NFS4_FHSIZE)
4582 return -EIO;
4583 fh->size = len;
Benny Halevyc0eae662009-08-14 17:20:14 +03004584 p = xdr_inline_decode(xdr, len);
4585 if (unlikely(!p))
4586 goto out_overflow;
Benny Halevy99398d02009-08-14 17:20:05 +03004587 memcpy(fh->data, p, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004588 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004589out_overflow:
4590 print_overflow_msg(__func__, xdr);
4591 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004592}
4593
4594static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4595{
4596 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004597
Linus Torvalds1da177e2005-04-16 15:20:36 -07004598 status = decode_op_hdr(xdr, OP_LINK);
4599 if (status)
4600 return status;
4601 return decode_change_info(xdr, cinfo);
4602}
4603
4604/*
4605 * We create the owner, so we know a proper owner.id length is 4.
4606 */
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004607static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004608{
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004609 uint64_t offset, length, clientid;
Al Viro8687b632006-10-19 23:28:48 -07004610 __be32 *p;
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004611 uint32_t namelen, type;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004612
Bryan Schumakerbabddc72010-10-20 15:44:29 -04004613 p = xdr_inline_decode(xdr, 32); /* read 32 bytes */
Benny Halevyc0eae662009-08-14 17:20:14 +03004614 if (unlikely(!p))
4615 goto out_overflow;
Bryan Schumakerbabddc72010-10-20 15:44:29 -04004616 p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */
Benny Halevy3ceb4db2009-08-14 17:19:41 +03004617 p = xdr_decode_hyper(p, &length);
Bryan Schumakerbabddc72010-10-20 15:44:29 -04004618 type = be32_to_cpup(p++); /* 4 byte read */
4619 if (fl != NULL) { /* manipulate file lock */
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004620 fl->fl_start = (loff_t)offset;
4621 fl->fl_end = fl->fl_start + (loff_t)length - 1;
4622 if (length == ~(uint64_t)0)
4623 fl->fl_end = OFFSET_MAX;
4624 fl->fl_type = F_WRLCK;
4625 if (type & 1)
4626 fl->fl_type = F_RDLCK;
4627 fl->fl_pid = 0;
4628 }
Bryan Schumakerbabddc72010-10-20 15:44:29 -04004629 p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */
4630 namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */
4631 p = xdr_inline_decode(xdr, namelen); /* variable size field */
Benny Halevyc0eae662009-08-14 17:20:14 +03004632 if (likely(p))
4633 return -NFS4ERR_DENIED;
4634out_overflow:
4635 print_overflow_msg(__func__, xdr);
4636 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004637}
4638
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004639static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004640{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004641 int status;
4642
4643 status = decode_op_hdr(xdr, OP_LOCK);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004644 if (status == -EIO)
4645 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004646 if (status == 0) {
Benny Halevy07d30432009-08-14 17:19:52 +03004647 status = decode_stateid(xdr, &res->stateid);
4648 if (unlikely(status))
4649 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004650 } else if (status == -NFS4ERR_DENIED)
Trond Myklebustc1d51932008-04-07 13:20:54 -04004651 status = decode_lock_denied(xdr, NULL);
4652 if (res->open_seqid != NULL)
4653 nfs_increment_open_seqid(status, res->open_seqid);
4654 nfs_increment_lock_seqid(status, res->lock_seqid);
4655out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07004656 return status;
4657}
4658
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004659static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004660{
4661 int status;
4662 status = decode_op_hdr(xdr, OP_LOCKT);
4663 if (status == -NFS4ERR_DENIED)
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004664 return decode_lock_denied(xdr, res->denied);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004665 return status;
4666}
4667
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004668static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004669{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004670 int status;
4671
4672 status = decode_op_hdr(xdr, OP_LOCKU);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004673 if (status != -EIO)
4674 nfs_increment_lock_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004675 if (status == 0)
4676 status = decode_stateid(xdr, &res->stateid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004677 return status;
4678}
4679
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04004680static int decode_release_lockowner(struct xdr_stream *xdr)
4681{
4682 return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER);
4683}
4684
Linus Torvalds1da177e2005-04-16 15:20:36 -07004685static int decode_lookup(struct xdr_stream *xdr)
4686{
4687 return decode_op_hdr(xdr, OP_LOOKUP);
4688}
4689
4690/* This is too sick! */
4691static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
4692{
Andy Adamson05d564f2008-12-23 16:06:15 -05004693 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004694 uint32_t limit_type, nblocks, blocksize;
4695
Benny Halevyc0eae662009-08-14 17:20:14 +03004696 p = xdr_inline_decode(xdr, 12);
4697 if (unlikely(!p))
4698 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004699 limit_type = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004700 switch (limit_type) {
Andy Adamson05d564f2008-12-23 16:06:15 -05004701 case 1:
Benny Halevycccddf42009-08-14 17:20:19 +03004702 xdr_decode_hyper(p, maxsize);
Andy Adamson05d564f2008-12-23 16:06:15 -05004703 break;
4704 case 2:
Benny Halevy6f723f72009-08-14 17:19:37 +03004705 nblocks = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004706 blocksize = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05004707 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004708 }
4709 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004710out_overflow:
4711 print_overflow_msg(__func__, xdr);
4712 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004713}
4714
4715static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
4716{
Andy Adamson05d564f2008-12-23 16:06:15 -05004717 __be32 *p;
4718 uint32_t delegation_type;
Benny Halevy07d30432009-08-14 17:19:52 +03004719 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004720
Benny Halevyc0eae662009-08-14 17:20:14 +03004721 p = xdr_inline_decode(xdr, 4);
4722 if (unlikely(!p))
4723 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004724 delegation_type = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004725 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
4726 res->delegation_type = 0;
4727 return 0;
4728 }
Benny Halevy07d30432009-08-14 17:19:52 +03004729 status = decode_stateid(xdr, &res->delegation);
4730 if (unlikely(status))
4731 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004732 p = xdr_inline_decode(xdr, 4);
4733 if (unlikely(!p))
4734 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004735 res->do_recall = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05004736
Linus Torvalds1da177e2005-04-16 15:20:36 -07004737 switch (delegation_type) {
Andy Adamson05d564f2008-12-23 16:06:15 -05004738 case NFS4_OPEN_DELEGATE_READ:
4739 res->delegation_type = FMODE_READ;
4740 break;
4741 case NFS4_OPEN_DELEGATE_WRITE:
4742 res->delegation_type = FMODE_WRITE|FMODE_READ;
4743 if (decode_space_limit(xdr, &res->maxsize) < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004744 return -EIO;
4745 }
David Howells7539bba2006-08-22 20:06:09 -04004746 return decode_ace(xdr, NULL, res->server->nfs_client);
Benny Halevyc0eae662009-08-14 17:20:14 +03004747out_overflow:
4748 print_overflow_msg(__func__, xdr);
4749 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004750}
4751
4752static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
4753{
Andy Adamson05d564f2008-12-23 16:06:15 -05004754 __be32 *p;
Jeff Laytonaa53ed52007-06-05 14:49:03 -04004755 uint32_t savewords, bmlen, i;
Andy Adamson05d564f2008-12-23 16:06:15 -05004756 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004757
Andy Adamson05d564f2008-12-23 16:06:15 -05004758 status = decode_op_hdr(xdr, OP_OPEN);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004759 if (status != -EIO)
4760 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004761 if (!status)
4762 status = decode_stateid(xdr, &res->stateid);
4763 if (unlikely(status))
Andy Adamson05d564f2008-12-23 16:06:15 -05004764 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004765
Andy Adamson05d564f2008-12-23 16:06:15 -05004766 decode_change_info(xdr, &res->cinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004767
Benny Halevyc0eae662009-08-14 17:20:14 +03004768 p = xdr_inline_decode(xdr, 8);
4769 if (unlikely(!p))
4770 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004771 res->rflags = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004772 bmlen = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05004773 if (bmlen > 10)
4774 goto xdr_error;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004775
Benny Halevyc0eae662009-08-14 17:20:14 +03004776 p = xdr_inline_decode(xdr, bmlen << 2);
4777 if (unlikely(!p))
4778 goto out_overflow;
Jeff Laytonaa53ed52007-06-05 14:49:03 -04004779 savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE);
4780 for (i = 0; i < savewords; ++i)
Benny Halevy6f723f72009-08-14 17:19:37 +03004781 res->attrset[i] = be32_to_cpup(p++);
Jeff Laytonaa53ed52007-06-05 14:49:03 -04004782 for (; i < NFS4_BITMAP_SIZE; i++)
4783 res->attrset[i] = 0;
4784
Linus Torvalds1da177e2005-04-16 15:20:36 -07004785 return decode_delegation(xdr, res);
4786xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004787 dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004788 return -EIO;
Benny Halevyc0eae662009-08-14 17:20:14 +03004789out_overflow:
4790 print_overflow_msg(__func__, xdr);
4791 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004792}
4793
4794static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
4795{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004796 int status;
4797
Andy Adamson05d564f2008-12-23 16:06:15 -05004798 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004799 if (status != -EIO)
4800 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004801 if (!status)
4802 status = decode_stateid(xdr, &res->stateid);
4803 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004804}
4805
4806static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
4807{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004808 int status;
4809
4810 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004811 if (status != -EIO)
4812 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004813 if (!status)
4814 status = decode_stateid(xdr, &res->stateid);
4815 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004816}
4817
4818static int decode_putfh(struct xdr_stream *xdr)
4819{
4820 return decode_op_hdr(xdr, OP_PUTFH);
4821}
4822
4823static int decode_putrootfh(struct xdr_stream *xdr)
4824{
4825 return decode_op_hdr(xdr, OP_PUTROOTFH);
4826}
4827
4828static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res)
4829{
4830 struct kvec *iov = req->rq_rcv_buf.head;
Al Viro8687b632006-10-19 23:28:48 -07004831 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004832 uint32_t count, eof, recvd, hdrlen;
4833 int status;
4834
4835 status = decode_op_hdr(xdr, OP_READ);
4836 if (status)
4837 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004838 p = xdr_inline_decode(xdr, 8);
4839 if (unlikely(!p))
4840 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004841 eof = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004842 count = be32_to_cpup(p);
Chuck Lever8111f372010-12-14 14:58:01 +00004843 hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004844 recvd = req->rq_rcv_buf.len - hdrlen;
4845 if (count > recvd) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004846 dprintk("NFS: server cheating in read reply: "
Linus Torvalds1da177e2005-04-16 15:20:36 -07004847 "count %u > recvd %u\n", count, recvd);
4848 count = recvd;
4849 eof = 0;
4850 }
4851 xdr_read_pages(xdr, count);
4852 res->eof = eof;
4853 res->count = count;
4854 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004855out_overflow:
4856 print_overflow_msg(__func__, xdr);
4857 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004858}
4859
4860static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
4861{
4862 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004863 struct kvec *iov = rcvbuf->head;
Chuck Leverbcecff72007-10-26 13:32:03 -04004864 size_t hdrlen;
4865 u32 recvd, pglen = rcvbuf->page_len;
Chuck Leverbcecff72007-10-26 13:32:03 -04004866 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004867
4868 status = decode_op_hdr(xdr, OP_READDIR);
Benny Halevydb942bb2009-08-14 17:19:56 +03004869 if (!status)
4870 status = decode_verifier(xdr, readdir->verifier.data);
4871 if (unlikely(status))
Linus Torvalds1da177e2005-04-16 15:20:36 -07004872 return status;
Fred Isaman44109242008-04-02 15:21:15 +03004873 dprintk("%s: verifier = %08x:%08x\n",
4874 __func__,
Trond Myklebusteadf4592005-06-22 17:16:39 +00004875 ((u32 *)readdir->verifier.data)[0],
4876 ((u32 *)readdir->verifier.data)[1]);
4877
Linus Torvalds1da177e2005-04-16 15:20:36 -07004878
Benny Halevydb942bb2009-08-14 17:19:56 +03004879 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004880 recvd = rcvbuf->len - hdrlen;
4881 if (pglen > recvd)
4882 pglen = recvd;
4883 xdr_read_pages(xdr, pglen);
4884
Jeff Layton7bda2cd2008-02-22 14:50:01 -05004885
Trond Myklebustac396122010-11-15 20:26:22 -05004886 return pglen;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004887}
4888
4889static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
4890{
4891 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
4892 struct kvec *iov = rcvbuf->head;
Chuck Leverbcecff72007-10-26 13:32:03 -04004893 size_t hdrlen;
4894 u32 len, recvd;
Al Viro8687b632006-10-19 23:28:48 -07004895 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004896 int status;
4897
4898 status = decode_op_hdr(xdr, OP_READLINK);
4899 if (status)
4900 return status;
4901
4902 /* Convert length of symlink */
Benny Halevyc0eae662009-08-14 17:20:14 +03004903 p = xdr_inline_decode(xdr, 4);
4904 if (unlikely(!p))
4905 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004906 len = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004907 if (len >= rcvbuf->page_len || len <= 0) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004908 dprintk("nfs: server returned giant symlink!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07004909 return -ENAMETOOLONG;
4910 }
4911 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
4912 recvd = req->rq_rcv_buf.len - hdrlen;
4913 if (recvd < len) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004914 dprintk("NFS: server cheating in readlink reply: "
Linus Torvalds1da177e2005-04-16 15:20:36 -07004915 "count %u > recvd %u\n", len, recvd);
4916 return -EIO;
4917 }
4918 xdr_read_pages(xdr, len);
4919 /*
4920 * The XDR encode routine has set things up so that
4921 * the link text will be copied directly into the
4922 * buffer. We just have to do overflow-checking,
4923 * and and null-terminate the text (the VFS expects
4924 * null-termination).
4925 */
Chuck Leverb4687da2010-09-21 16:55:48 -04004926 xdr_terminate_string(rcvbuf, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004927 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004928out_overflow:
4929 print_overflow_msg(__func__, xdr);
4930 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004931}
4932
4933static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4934{
4935 int status;
4936
4937 status = decode_op_hdr(xdr, OP_REMOVE);
4938 if (status)
4939 goto out;
4940 status = decode_change_info(xdr, cinfo);
4941out:
4942 return status;
4943}
4944
4945static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
4946 struct nfs4_change_info *new_cinfo)
4947{
4948 int status;
4949
4950 status = decode_op_hdr(xdr, OP_RENAME);
4951 if (status)
4952 goto out;
4953 if ((status = decode_change_info(xdr, old_cinfo)))
4954 goto out;
4955 status = decode_change_info(xdr, new_cinfo);
4956out:
4957 return status;
4958}
4959
4960static int decode_renew(struct xdr_stream *xdr)
4961{
4962 return decode_op_hdr(xdr, OP_RENEW);
4963}
4964
Trond Myklebust56ae19f2005-10-27 22:12:40 -04004965static int
4966decode_restorefh(struct xdr_stream *xdr)
4967{
4968 return decode_op_hdr(xdr, OP_RESTOREFH);
4969}
4970
J. Bruce Fields029d1052005-06-22 17:16:22 +00004971static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
Andy Adamsonbf118a32011-12-07 11:55:27 -05004972 struct nfs_getaclres *res)
J. Bruce Fields029d1052005-06-22 17:16:22 +00004973{
Andy Adamsonbf118a32011-12-07 11:55:27 -05004974 __be32 *savep, *bm_p;
J. Bruce Fields029d1052005-06-22 17:16:22 +00004975 uint32_t attrlen,
Fred Isamandae100c2011-07-30 20:52:37 -04004976 bitmap[3] = {0};
J. Bruce Fields029d1052005-06-22 17:16:22 +00004977 struct kvec *iov = req->rq_rcv_buf.head;
4978 int status;
4979
Andy Adamsonbf118a32011-12-07 11:55:27 -05004980 res->acl_len = 0;
J. Bruce Fields029d1052005-06-22 17:16:22 +00004981 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4982 goto out;
Andy Adamsonbf118a32011-12-07 11:55:27 -05004983 bm_p = xdr->p;
J. Bruce Fields029d1052005-06-22 17:16:22 +00004984 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4985 goto out;
4986 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4987 goto out;
4988
4989 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
4990 return -EIO;
4991 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
Chuck Leverbcecff72007-10-26 13:32:03 -04004992 size_t hdrlen;
4993 u32 recvd;
J. Bruce Fields029d1052005-06-22 17:16:22 +00004994
Andy Adamsonbf118a32011-12-07 11:55:27 -05004995 /* The bitmap (xdr len + bitmaps) and the attr xdr len words
4996 * are stored with the acl data to handle the problem of
4997 * variable length bitmaps.*/
4998 xdr->p = bm_p;
4999 res->acl_data_offset = be32_to_cpup(bm_p) + 2;
5000 res->acl_data_offset <<= 2;
5001
J. Bruce Fields029d1052005-06-22 17:16:22 +00005002 /* We ignore &savep and don't do consistency checks on
5003 * the attr length. Let userspace figure it out.... */
5004 hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base;
Andy Adamsonbf118a32011-12-07 11:55:27 -05005005 attrlen += res->acl_data_offset;
J. Bruce Fields029d1052005-06-22 17:16:22 +00005006 recvd = req->rq_rcv_buf.len - hdrlen;
5007 if (attrlen > recvd) {
Andy Adamsonbf118a32011-12-07 11:55:27 -05005008 if (res->acl_flags & NFS4_ACL_LEN_REQUEST) {
5009 /* getxattr interface called with a NULL buf */
5010 res->acl_len = attrlen;
5011 goto out;
5012 }
5013 dprintk("NFS: acl reply: attrlen %u > recvd %u\n",
J. Bruce Fields029d1052005-06-22 17:16:22 +00005014 attrlen, recvd);
5015 return -EINVAL;
5016 }
J. Bruce Fieldsc04871e2006-05-30 16:28:58 -04005017 xdr_read_pages(xdr, attrlen);
Andy Adamsonbf118a32011-12-07 11:55:27 -05005018 res->acl_len = attrlen;
J. Bruce Fields8c233cf2005-10-13 16:54:27 -04005019 } else
5020 status = -EOPNOTSUPP;
J. Bruce Fields029d1052005-06-22 17:16:22 +00005021
5022out:
5023 return status;
5024}
5025
Linus Torvalds1da177e2005-04-16 15:20:36 -07005026static int
5027decode_savefh(struct xdr_stream *xdr)
5028{
5029 return decode_op_hdr(xdr, OP_SAVEFH);
5030}
5031
Benny Halevy9e9ecc02009-04-01 09:22:00 -04005032static int decode_setattr(struct xdr_stream *xdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005033{
Al Viro8687b632006-10-19 23:28:48 -07005034 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005035 uint32_t bmlen;
5036 int status;
5037
Linus Torvalds1da177e2005-04-16 15:20:36 -07005038 status = decode_op_hdr(xdr, OP_SETATTR);
5039 if (status)
5040 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03005041 p = xdr_inline_decode(xdr, 4);
5042 if (unlikely(!p))
5043 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03005044 bmlen = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03005045 p = xdr_inline_decode(xdr, bmlen << 2);
5046 if (likely(p))
5047 return 0;
5048out_overflow:
5049 print_overflow_msg(__func__, xdr);
5050 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005051}
5052
Trond Myklebustbb8b27e2010-04-16 16:43:06 -04005053static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005054{
Al Viro8687b632006-10-19 23:28:48 -07005055 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005056 uint32_t opnum;
5057 int32_t nfserr;
5058
Benny Halevyc0eae662009-08-14 17:20:14 +03005059 p = xdr_inline_decode(xdr, 8);
5060 if (unlikely(!p))
5061 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03005062 opnum = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005063 if (opnum != OP_SETCLIENTID) {
Chuck Leverfe82a182007-09-11 18:01:10 -04005064 dprintk("nfs: decode_setclientid: Server returned operation"
Andy Adamson6c0195a2008-12-23 16:06:15 -05005065 " %d\n", opnum);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005066 return -EIO;
5067 }
Benny Halevycccddf42009-08-14 17:20:19 +03005068 nfserr = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005069 if (nfserr == NFS_OK) {
Benny Halevyc0eae662009-08-14 17:20:14 +03005070 p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE);
5071 if (unlikely(!p))
5072 goto out_overflow;
Trond Myklebustbb8b27e2010-04-16 16:43:06 -04005073 p = xdr_decode_hyper(p, &res->clientid);
5074 memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005075 } else if (nfserr == NFSERR_CLID_INUSE) {
5076 uint32_t len;
5077
5078 /* skip netid string */
Benny Halevyc0eae662009-08-14 17:20:14 +03005079 p = xdr_inline_decode(xdr, 4);
5080 if (unlikely(!p))
5081 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03005082 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03005083 p = xdr_inline_decode(xdr, len);
5084 if (unlikely(!p))
5085 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005086
5087 /* skip uaddr string */
Benny Halevyc0eae662009-08-14 17:20:14 +03005088 p = xdr_inline_decode(xdr, 4);
5089 if (unlikely(!p))
5090 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03005091 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03005092 p = xdr_inline_decode(xdr, len);
5093 if (unlikely(!p))
5094 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005095 return -NFSERR_CLID_INUSE;
5096 } else
Benny Halevy856dff32008-03-31 17:39:06 +03005097 return nfs4_stat_to_errno(nfserr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005098
5099 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005100out_overflow:
5101 print_overflow_msg(__func__, xdr);
5102 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005103}
5104
5105static int decode_setclientid_confirm(struct xdr_stream *xdr)
5106{
5107 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
5108}
5109
5110static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
5111{
Al Viro8687b632006-10-19 23:28:48 -07005112 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005113 int status;
5114
5115 status = decode_op_hdr(xdr, OP_WRITE);
5116 if (status)
5117 return status;
5118
Benny Halevyc0eae662009-08-14 17:20:14 +03005119 p = xdr_inline_decode(xdr, 16);
5120 if (unlikely(!p))
5121 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03005122 res->count = be32_to_cpup(p++);
5123 res->verf->committed = be32_to_cpup(p++);
Benny Halevy99398d02009-08-14 17:20:05 +03005124 memcpy(res->verf->verifier, p, 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005125 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005126out_overflow:
5127 print_overflow_msg(__func__, xdr);
5128 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005129}
5130
5131static int decode_delegreturn(struct xdr_stream *xdr)
5132{
5133 return decode_op_hdr(xdr, OP_DELEGRETURN);
5134}
5135
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005136static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor)
5137{
5138 __be32 *p;
5139
5140 p = xdr_inline_decode(xdr, 4);
5141 if (unlikely(!p))
5142 goto out_overflow;
5143 flavor->gss.sec_oid4.len = be32_to_cpup(p);
5144 if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN)
5145 goto out_err;
5146
5147 p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len);
5148 if (unlikely(!p))
5149 goto out_overflow;
5150 memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len);
5151
5152 p = xdr_inline_decode(xdr, 8);
5153 if (unlikely(!p))
5154 goto out_overflow;
5155 flavor->gss.qop4 = be32_to_cpup(p++);
5156 flavor->gss.service = be32_to_cpup(p);
5157
5158 return 0;
5159
5160out_overflow:
5161 print_overflow_msg(__func__, xdr);
5162 return -EIO;
5163out_err:
5164 return -EINVAL;
5165}
5166
5167static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
5168{
5169 struct nfs4_secinfo_flavor *sec_flavor;
5170 int status;
5171 __be32 *p;
Bryan Schumakerc3dfc282011-04-13 14:31:31 -04005172 int i, num_flavors;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005173
5174 status = decode_op_hdr(xdr, OP_SECINFO);
Bryan Schumaker613e9012011-04-27 15:28:44 -04005175 if (status)
5176 goto out;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005177 p = xdr_inline_decode(xdr, 4);
5178 if (unlikely(!p))
5179 goto out_overflow;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005180
Bryan Schumakerc3dfc282011-04-13 14:31:31 -04005181 res->flavors->num_flavors = 0;
5182 num_flavors = be32_to_cpup(p);
5183
5184 for (i = 0; i < num_flavors; i++) {
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005185 sec_flavor = &res->flavors->flavors[i];
Bryan Schumakerc3dfc282011-04-13 14:31:31 -04005186 if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE)
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005187 break;
5188
5189 p = xdr_inline_decode(xdr, 4);
5190 if (unlikely(!p))
5191 goto out_overflow;
5192 sec_flavor->flavor = be32_to_cpup(p);
5193
5194 if (sec_flavor->flavor == RPC_AUTH_GSS) {
Bryan Schumaker613e9012011-04-27 15:28:44 -04005195 status = decode_secinfo_gss(xdr, sec_flavor);
5196 if (status)
5197 goto out;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005198 }
Bryan Schumakerc3dfc282011-04-13 14:31:31 -04005199 res->flavors->num_flavors++;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005200 }
5201
Bryan Schumaker613e9012011-04-27 15:28:44 -04005202out:
5203 return status;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005204out_overflow:
5205 print_overflow_msg(__func__, xdr);
5206 return -EIO;
5207}
5208
Benny Halevy99fe60d2009-04-01 09:22:29 -04005209#if defined(CONFIG_NFS_V4_1)
5210static int decode_exchange_id(struct xdr_stream *xdr,
5211 struct nfs41_exchange_id_res *res)
5212{
5213 __be32 *p;
5214 uint32_t dummy;
Benny Halevy2460ba52009-08-14 17:20:10 +03005215 char *dummy_str;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005216 int status;
5217 struct nfs_client *clp = res->client;
5218
5219 status = decode_op_hdr(xdr, OP_EXCHANGE_ID);
5220 if (status)
5221 return status;
5222
Benny Halevyc0eae662009-08-14 17:20:14 +03005223 p = xdr_inline_decode(xdr, 8);
5224 if (unlikely(!p))
5225 goto out_overflow;
Andy Adamson114f64b2011-03-09 13:13:45 -05005226 xdr_decode_hyper(p, &clp->cl_clientid);
Benny Halevyc0eae662009-08-14 17:20:14 +03005227 p = xdr_inline_decode(xdr, 12);
5228 if (unlikely(!p))
5229 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03005230 clp->cl_seqid = be32_to_cpup(p++);
5231 clp->cl_exchange_flags = be32_to_cpup(p++);
Benny Halevy99fe60d2009-04-01 09:22:29 -04005232
5233 /* We ask for SP4_NONE */
Benny Halevycccddf42009-08-14 17:20:19 +03005234 dummy = be32_to_cpup(p);
Benny Halevy99fe60d2009-04-01 09:22:29 -04005235 if (dummy != SP4_NONE)
5236 return -EIO;
5237
5238 /* Throw away minor_id */
Benny Halevyc0eae662009-08-14 17:20:14 +03005239 p = xdr_inline_decode(xdr, 8);
5240 if (unlikely(!p))
5241 goto out_overflow;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005242
5243 /* Throw away Major id */
Benny Halevy2460ba52009-08-14 17:20:10 +03005244 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5245 if (unlikely(status))
5246 return status;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005247
Weston Andros Adamson78fe0f42011-05-31 19:05:47 -04005248 /* Save server_scope */
Benny Halevy2460ba52009-08-14 17:20:10 +03005249 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5250 if (unlikely(status))
5251 return status;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005252
Weston Andros Adamson78fe0f42011-05-31 19:05:47 -04005253 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5254 return -EIO;
5255
5256 memcpy(res->server_scope->server_scope, dummy_str, dummy);
5257 res->server_scope->server_scope_sz = dummy;
5258
Benny Halevy99fe60d2009-04-01 09:22:29 -04005259 /* Throw away Implementation id array */
Benny Halevy2460ba52009-08-14 17:20:10 +03005260 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5261 if (unlikely(status))
5262 return status;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005263
5264 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005265out_overflow:
5266 print_overflow_msg(__func__, xdr);
5267 return -EIO;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005268}
Andy Adamsonfc931582009-04-01 09:22:31 -04005269
5270static int decode_chan_attrs(struct xdr_stream *xdr,
5271 struct nfs4_channel_attrs *attrs)
5272{
5273 __be32 *p;
Benny Halevyc9c30dd2011-06-11 17:08:39 -04005274 u32 nr_attrs, val;
Andy Adamsonfc931582009-04-01 09:22:31 -04005275
Benny Halevyc0eae662009-08-14 17:20:14 +03005276 p = xdr_inline_decode(xdr, 28);
5277 if (unlikely(!p))
5278 goto out_overflow;
Benny Halevyc9c30dd2011-06-11 17:08:39 -04005279 val = be32_to_cpup(p++); /* headerpadsz */
5280 if (val)
5281 return -EINVAL; /* no support for header padding yet */
Benny Halevy6f723f72009-08-14 17:19:37 +03005282 attrs->max_rqst_sz = be32_to_cpup(p++);
5283 attrs->max_resp_sz = be32_to_cpup(p++);
5284 attrs->max_resp_sz_cached = be32_to_cpup(p++);
5285 attrs->max_ops = be32_to_cpup(p++);
5286 attrs->max_reqs = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03005287 nr_attrs = be32_to_cpup(p);
Andy Adamsonfc931582009-04-01 09:22:31 -04005288 if (unlikely(nr_attrs > 1)) {
5289 printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n",
5290 __func__, nr_attrs);
5291 return -EINVAL;
5292 }
Benny Halevyc0eae662009-08-14 17:20:14 +03005293 if (nr_attrs == 1) {
5294 p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */
5295 if (unlikely(!p))
5296 goto out_overflow;
5297 }
Andy Adamsonfc931582009-04-01 09:22:31 -04005298 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005299out_overflow:
5300 print_overflow_msg(__func__, xdr);
5301 return -EIO;
Andy Adamsonfc931582009-04-01 09:22:31 -04005302}
5303
Benny Halevye78291e2009-08-14 17:20:00 +03005304static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid)
5305{
5306 return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN);
Andy Adamsonfc931582009-04-01 09:22:31 -04005307}
5308
5309static int decode_create_session(struct xdr_stream *xdr,
5310 struct nfs41_create_session_res *res)
5311{
5312 __be32 *p;
5313 int status;
5314 struct nfs_client *clp = res->client;
5315 struct nfs4_session *session = clp->cl_session;
5316
5317 status = decode_op_hdr(xdr, OP_CREATE_SESSION);
Benny Halevye78291e2009-08-14 17:20:00 +03005318 if (!status)
5319 status = decode_sessionid(xdr, &session->sess_id);
5320 if (unlikely(status))
Andy Adamsonfc931582009-04-01 09:22:31 -04005321 return status;
5322
Andy Adamsonfc931582009-04-01 09:22:31 -04005323 /* seqid, flags */
Benny Halevyc0eae662009-08-14 17:20:14 +03005324 p = xdr_inline_decode(xdr, 8);
5325 if (unlikely(!p))
5326 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03005327 clp->cl_seqid = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03005328 session->flags = be32_to_cpup(p);
Andy Adamsonfc931582009-04-01 09:22:31 -04005329
5330 /* Channel attributes */
5331 status = decode_chan_attrs(xdr, &session->fc_attrs);
5332 if (!status)
5333 status = decode_chan_attrs(xdr, &session->bc_attrs);
5334 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03005335out_overflow:
5336 print_overflow_msg(__func__, xdr);
5337 return -EIO;
Andy Adamsonfc931582009-04-01 09:22:31 -04005338}
Andy Adamson0f3e66c2009-04-01 09:22:34 -04005339
5340static int decode_destroy_session(struct xdr_stream *xdr, void *dummy)
5341{
5342 return decode_op_hdr(xdr, OP_DESTROY_SESSION);
5343}
Ricardo Labiaga180197532009-12-05 16:08:40 -05005344
5345static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy)
5346{
5347 return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE);
5348}
Benny Halevy99fe60d2009-04-01 09:22:29 -04005349#endif /* CONFIG_NFS_V4_1 */
5350
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005351static int decode_sequence(struct xdr_stream *xdr,
5352 struct nfs4_sequence_res *res,
5353 struct rpc_rqst *rqstp)
5354{
5355#if defined(CONFIG_NFS_V4_1)
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005356 struct nfs4_sessionid id;
5357 u32 dummy;
5358 int status;
5359 __be32 *p;
5360
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005361 if (!res->sr_session)
5362 return 0;
5363
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005364 status = decode_op_hdr(xdr, OP_SEQUENCE);
Benny Halevye78291e2009-08-14 17:20:00 +03005365 if (!status)
5366 status = decode_sessionid(xdr, &id);
5367 if (unlikely(status))
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005368 goto out_err;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005369
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005370 /*
5371 * If the server returns different values for sessionID, slotID or
5372 * sequence number, the server is looney tunes.
5373 */
Trond Myklebustfdcb4572010-02-08 09:32:40 -05005374 status = -EREMOTEIO;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005375
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005376 if (memcmp(id.data, res->sr_session->sess_id.data,
5377 NFS4_MAX_SESSIONID_LEN)) {
5378 dprintk("%s Invalid session id\n", __func__);
5379 goto out_err;
5380 }
Benny Halevye78291e2009-08-14 17:20:00 +03005381
Benny Halevyc0eae662009-08-14 17:20:14 +03005382 p = xdr_inline_decode(xdr, 20);
5383 if (unlikely(!p))
5384 goto out_overflow;
Benny Halevye78291e2009-08-14 17:20:00 +03005385
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005386 /* seqid */
Benny Halevy6f723f72009-08-14 17:19:37 +03005387 dummy = be32_to_cpup(p++);
Benny Halevydfb4f3092010-09-24 09:17:01 -04005388 if (dummy != res->sr_slot->seq_nr) {
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005389 dprintk("%s Invalid sequence number\n", __func__);
5390 goto out_err;
5391 }
5392 /* slot id */
Benny Halevy6f723f72009-08-14 17:19:37 +03005393 dummy = be32_to_cpup(p++);
Benny Halevydfb4f3092010-09-24 09:17:01 -04005394 if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) {
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005395 dprintk("%s Invalid slot id\n", __func__);
5396 goto out_err;
5397 }
5398 /* highest slot id - currently not processed */
Benny Halevy6f723f72009-08-14 17:19:37 +03005399 dummy = be32_to_cpup(p++);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005400 /* target highest slot id - currently not processed */
Benny Halevy6f723f72009-08-14 17:19:37 +03005401 dummy = be32_to_cpup(p++);
Alexandros Batsakis0629e372009-12-05 13:46:14 -05005402 /* result flags */
5403 res->sr_status_flags = be32_to_cpup(p);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005404 status = 0;
5405out_err:
5406 res->sr_status = status;
5407 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03005408out_overflow:
5409 print_overflow_msg(__func__, xdr);
5410 status = -EIO;
5411 goto out_err;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005412#else /* CONFIG_NFS_V4_1 */
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005413 return 0;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005414#endif /* CONFIG_NFS_V4_1 */
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005415}
5416
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005417#if defined(CONFIG_NFS_V4_1)
Andy Adamson7f11d8d2011-07-30 20:52:35 -04005418/*
5419 * TODO: Need to handle case when EOF != true;
5420 */
5421static int decode_getdevicelist(struct xdr_stream *xdr,
5422 struct pnfs_devicelist *res)
5423{
5424 __be32 *p;
5425 int status, i;
5426 struct nfs_writeverf verftemp;
5427
5428 status = decode_op_hdr(xdr, OP_GETDEVICELIST);
5429 if (status)
5430 return status;
5431
5432 p = xdr_inline_decode(xdr, 8 + 8 + 4);
5433 if (unlikely(!p))
5434 goto out_overflow;
5435
5436 /* TODO: Skip cookie for now */
5437 p += 2;
5438
5439 /* Read verifier */
5440 p = xdr_decode_opaque_fixed(p, verftemp.verifier, 8);
5441
5442 res->num_devs = be32_to_cpup(p);
5443
5444 dprintk("%s: num_dev %d\n", __func__, res->num_devs);
5445
5446 if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) {
5447 printk(KERN_ERR "%s too many result dev_num %u\n",
5448 __func__, res->num_devs);
5449 return -EIO;
5450 }
5451
5452 p = xdr_inline_decode(xdr,
5453 res->num_devs * NFS4_DEVICEID4_SIZE + 4);
5454 if (unlikely(!p))
5455 goto out_overflow;
5456 for (i = 0; i < res->num_devs; i++)
5457 p = xdr_decode_opaque_fixed(p, res->dev_id[i].data,
5458 NFS4_DEVICEID4_SIZE);
5459 res->eof = be32_to_cpup(p);
5460 return 0;
5461out_overflow:
5462 print_overflow_msg(__func__, xdr);
5463 return -EIO;
5464}
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005465
5466static int decode_getdeviceinfo(struct xdr_stream *xdr,
5467 struct pnfs_device *pdev)
5468{
5469 __be32 *p;
5470 uint32_t len, type;
5471 int status;
5472
5473 status = decode_op_hdr(xdr, OP_GETDEVICEINFO);
5474 if (status) {
5475 if (status == -ETOOSMALL) {
5476 p = xdr_inline_decode(xdr, 4);
5477 if (unlikely(!p))
5478 goto out_overflow;
5479 pdev->mincount = be32_to_cpup(p);
5480 dprintk("%s: Min count too small. mincnt = %u\n",
5481 __func__, pdev->mincount);
5482 }
5483 return status;
5484 }
5485
5486 p = xdr_inline_decode(xdr, 8);
5487 if (unlikely(!p))
5488 goto out_overflow;
5489 type = be32_to_cpup(p++);
5490 if (type != pdev->layout_type) {
5491 dprintk("%s: layout mismatch req: %u pdev: %u\n",
5492 __func__, pdev->layout_type, type);
5493 return -EINVAL;
5494 }
5495 /*
5496 * Get the length of the opaque device_addr4. xdr_read_pages places
5497 * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages)
5498 * and places the remaining xdr data in xdr_buf->tail
5499 */
5500 pdev->mincount = be32_to_cpup(p);
5501 xdr_read_pages(xdr, pdev->mincount); /* include space for the length */
5502
5503 /* Parse notification bitmap, verifying that it is zero. */
5504 p = xdr_inline_decode(xdr, 4);
5505 if (unlikely(!p))
5506 goto out_overflow;
5507 len = be32_to_cpup(p);
5508 if (len) {
Chuck Leveread00592010-12-14 14:58:21 +00005509 uint32_t i;
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005510
5511 p = xdr_inline_decode(xdr, 4 * len);
5512 if (unlikely(!p))
5513 goto out_overflow;
5514 for (i = 0; i < len; i++, p++) {
5515 if (be32_to_cpup(p)) {
5516 dprintk("%s: notifications not supported\n",
5517 __func__);
5518 return -EIO;
5519 }
5520 }
5521 }
5522 return 0;
5523out_overflow:
5524 print_overflow_msg(__func__, xdr);
5525 return -EIO;
5526}
5527
5528static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
5529 struct nfs4_layoutget_res *res)
5530{
5531 __be32 *p;
5532 int status;
5533 u32 layout_count;
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005534 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
5535 struct kvec *iov = rcvbuf->head;
5536 u32 hdrlen, recvd;
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005537
5538 status = decode_op_hdr(xdr, OP_LAYOUTGET);
5539 if (status)
5540 return status;
5541 p = xdr_inline_decode(xdr, 8 + NFS4_STATEID_SIZE);
5542 if (unlikely(!p))
5543 goto out_overflow;
5544 res->return_on_close = be32_to_cpup(p++);
5545 p = xdr_decode_opaque_fixed(p, res->stateid.data, NFS4_STATEID_SIZE);
5546 layout_count = be32_to_cpup(p);
5547 if (!layout_count) {
5548 dprintk("%s: server responded with empty layout array\n",
5549 __func__);
5550 return -EINVAL;
5551 }
5552
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005553 p = xdr_inline_decode(xdr, 28);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005554 if (unlikely(!p))
5555 goto out_overflow;
5556 p = xdr_decode_hyper(p, &res->range.offset);
5557 p = xdr_decode_hyper(p, &res->range.length);
5558 res->range.iomode = be32_to_cpup(p++);
5559 res->type = be32_to_cpup(p++);
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005560 res->layoutp->len = be32_to_cpup(p);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005561
5562 dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n",
5563 __func__,
5564 (unsigned long)res->range.offset,
5565 (unsigned long)res->range.length,
5566 res->range.iomode,
5567 res->type,
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005568 res->layoutp->len);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005569
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005570 hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base;
5571 recvd = req->rq_rcv_buf.len - hdrlen;
5572 if (res->layoutp->len > recvd) {
5573 dprintk("NFS: server cheating in layoutget reply: "
5574 "layout len %u > recvd %u\n",
5575 res->layoutp->len, recvd);
5576 return -EINVAL;
5577 }
5578
5579 xdr_read_pages(xdr, res->layoutp->len);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005580
5581 if (layout_count > 1) {
5582 /* We only handle a length one array at the moment. Any
5583 * further entries are just ignored. Note that this means
5584 * the client may see a response that is less than the
5585 * minimum it requested.
5586 */
5587 dprintk("%s: server responded with %d layouts, dropping tail\n",
5588 __func__, layout_count);
5589 }
5590
5591 return 0;
5592out_overflow:
5593 print_overflow_msg(__func__, xdr);
5594 return -EIO;
5595}
Andy Adamson863a3c62011-03-23 13:27:54 +00005596
Benny Halevycbe82602011-05-22 19:52:37 +03005597static int decode_layoutreturn(struct xdr_stream *xdr,
5598 struct nfs4_layoutreturn_res *res)
5599{
5600 __be32 *p;
5601 int status;
5602
5603 status = decode_op_hdr(xdr, OP_LAYOUTRETURN);
5604 if (status)
5605 return status;
5606 p = xdr_inline_decode(xdr, 4);
5607 if (unlikely(!p))
5608 goto out_overflow;
5609 res->lrs_present = be32_to_cpup(p);
5610 if (res->lrs_present)
5611 status = decode_stateid(xdr, &res->stateid);
5612 return status;
5613out_overflow:
5614 print_overflow_msg(__func__, xdr);
5615 return -EIO;
5616}
5617
Andy Adamson863a3c62011-03-23 13:27:54 +00005618static int decode_layoutcommit(struct xdr_stream *xdr,
5619 struct rpc_rqst *req,
5620 struct nfs4_layoutcommit_res *res)
5621{
5622 __be32 *p;
5623 __u32 sizechanged;
5624 int status;
5625
5626 status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT);
Andy Adamsondb29c082011-07-30 20:52:38 -04005627 res->status = status;
Andy Adamson863a3c62011-03-23 13:27:54 +00005628 if (status)
5629 return status;
5630
5631 p = xdr_inline_decode(xdr, 4);
5632 if (unlikely(!p))
5633 goto out_overflow;
5634 sizechanged = be32_to_cpup(p);
5635
5636 if (sizechanged) {
5637 /* throw away new size */
5638 p = xdr_inline_decode(xdr, 8);
5639 if (unlikely(!p))
5640 goto out_overflow;
5641 }
5642 return 0;
5643out_overflow:
5644 print_overflow_msg(__func__, xdr);
5645 return -EIO;
5646}
Bryan Schumaker7d974792011-06-02 14:59:08 -04005647
5648static int decode_test_stateid(struct xdr_stream *xdr,
5649 struct nfs41_test_stateid_res *res)
5650{
5651 __be32 *p;
5652 int status;
5653 int num_res;
5654
5655 status = decode_op_hdr(xdr, OP_TEST_STATEID);
5656 if (status)
5657 return status;
5658
5659 p = xdr_inline_decode(xdr, 4);
5660 if (unlikely(!p))
5661 goto out_overflow;
5662 num_res = be32_to_cpup(p++);
5663 if (num_res != 1)
5664 goto out;
5665
5666 p = xdr_inline_decode(xdr, 4);
5667 if (unlikely(!p))
5668 goto out_overflow;
5669 res->status = be32_to_cpup(p++);
5670 return res->status;
5671out_overflow:
5672 print_overflow_msg(__func__, xdr);
5673out:
5674 return -EIO;
5675}
Bryan Schumaker9aeda352011-06-02 14:59:09 -04005676
5677static int decode_free_stateid(struct xdr_stream *xdr,
5678 struct nfs41_free_stateid_res *res)
5679{
5680 __be32 *p;
5681 int status;
5682
5683 status = decode_op_hdr(xdr, OP_FREE_STATEID);
5684 if (status)
5685 return status;
5686
5687 p = xdr_inline_decode(xdr, 4);
5688 if (unlikely(!p))
5689 goto out_overflow;
5690 res->status = be32_to_cpup(p++);
5691 return res->status;
5692out_overflow:
5693 print_overflow_msg(__func__, xdr);
5694 return -EIO;
5695}
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005696#endif /* CONFIG_NFS_V4_1 */
5697
Linus Torvalds1da177e2005-04-16 15:20:36 -07005698/*
Benny Halevy49c25592008-12-23 16:06:16 -05005699 * END OF "GENERIC" DECODE ROUTINES.
5700 */
5701
5702/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07005703 * Decode OPEN_DOWNGRADE response
5704 */
Chuck Leverbf269552010-12-14 14:59:29 +00005705static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp,
5706 struct xdr_stream *xdr,
5707 struct nfs_closeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005708{
Andy Adamson05d564f2008-12-23 16:06:15 -05005709 struct compound_hdr hdr;
5710 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005711
Chuck Leverbf269552010-12-14 14:59:29 +00005712 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05005713 if (status)
5714 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005715 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005716 if (status)
5717 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005718 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05005719 if (status)
5720 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005721 status = decode_open_downgrade(xdr, res);
Trond Myklebust516a6af2005-10-27 22:12:41 -04005722 if (status != 0)
5723 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05005724 decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005725out:
Andy Adamson05d564f2008-12-23 16:06:15 -05005726 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005727}
5728
5729/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07005730 * Decode ACCESS response
5731 */
Chuck Leverbf269552010-12-14 14:59:29 +00005732static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5733 struct nfs4_accessres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005734{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005735 struct compound_hdr hdr;
5736 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05005737
Chuck Leverbf269552010-12-14 14:59:29 +00005738 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005739 if (status)
5740 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005741 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005742 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005743 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005744 status = decode_putfh(xdr);
Trond Myklebust76b32992007-08-10 17:45:11 -04005745 if (status != 0)
5746 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005747 status = decode_access(xdr, res);
Trond Myklebust76b32992007-08-10 17:45:11 -04005748 if (status != 0)
5749 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05005750 decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005751out:
5752 return status;
5753}
5754
5755/*
5756 * Decode LOOKUP response
5757 */
Chuck Leverbf269552010-12-14 14:59:29 +00005758static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5759 struct nfs4_lookup_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005760{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005761 struct compound_hdr hdr;
5762 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05005763
Chuck Leverbf269552010-12-14 14:59:29 +00005764 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005765 if (status)
5766 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005767 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005768 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005769 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005770 status = decode_putfh(xdr);
5771 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005772 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005773 status = decode_lookup(xdr);
5774 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005775 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005776 status = decode_getfh(xdr, res->fh);
5777 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005778 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05005779 status = decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005780out:
5781 return status;
5782}
5783
5784/*
5785 * Decode LOOKUP_ROOT response
5786 */
Chuck Leverbf269552010-12-14 14:59:29 +00005787static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp,
5788 struct xdr_stream *xdr,
5789 struct nfs4_lookup_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005790{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005791 struct compound_hdr hdr;
5792 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05005793
Chuck Leverbf269552010-12-14 14:59:29 +00005794 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005795 if (status)
5796 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005797 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005798 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005799 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005800 status = decode_putrootfh(xdr);
5801 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005802 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005803 status = decode_getfh(xdr, res->fh);
5804 if (status == 0)
Trond Myklebust6926afd2012-01-07 13:22:46 -05005805 status = decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005806out:
5807 return status;
5808}
5809
5810/*
5811 * Decode REMOVE response
5812 */
Chuck Leverbf269552010-12-14 14:59:29 +00005813static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5814 struct nfs_removeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005815{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005816 struct compound_hdr hdr;
5817 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05005818
Chuck Leverbf269552010-12-14 14:59:29 +00005819 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005820 if (status)
5821 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005822 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005823 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005824 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005825 status = decode_putfh(xdr);
5826 if (status)
Trond Myklebust16e42952005-10-27 22:12:44 -04005827 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005828 status = decode_remove(xdr, &res->cinfo);
5829 if (status)
Trond Myklebust16e42952005-10-27 22:12:44 -04005830 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05005831 decode_getfattr(xdr, res->dir_attr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005832out:
5833 return status;
5834}
5835
5836/*
5837 * Decode RENAME response
5838 */
Chuck Leverbf269552010-12-14 14:59:29 +00005839static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5840 struct nfs_renameres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005841{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005842 struct compound_hdr hdr;
5843 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05005844
Chuck Leverbf269552010-12-14 14:59:29 +00005845 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005846 if (status)
5847 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005848 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005849 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005850 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005851 status = decode_putfh(xdr);
5852 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005853 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005854 status = decode_savefh(xdr);
5855 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005856 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005857 status = decode_putfh(xdr);
5858 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005859 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005860 status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo);
5861 if (status)
Trond Myklebust6caf2c82005-10-27 22:12:43 -04005862 goto out;
5863 /* Current FH is target directory */
Trond Myklebust6926afd2012-01-07 13:22:46 -05005864 if (decode_getfattr(xdr, res->new_fattr, res->server))
Trond Myklebust6caf2c82005-10-27 22:12:43 -04005865 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005866 status = decode_restorefh(xdr);
5867 if (status)
Trond Myklebust6caf2c82005-10-27 22:12:43 -04005868 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05005869 decode_getfattr(xdr, res->old_fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005870out:
5871 return status;
5872}
5873
5874/*
5875 * Decode LINK response
5876 */
Chuck Leverbf269552010-12-14 14:59:29 +00005877static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5878 struct nfs4_link_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005879{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005880 struct compound_hdr hdr;
5881 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05005882
Chuck Leverbf269552010-12-14 14:59:29 +00005883 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005884 if (status)
5885 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005886 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005887 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005888 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005889 status = decode_putfh(xdr);
5890 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005891 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005892 status = decode_savefh(xdr);
5893 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005894 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005895 status = decode_putfh(xdr);
5896 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005897 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005898 status = decode_link(xdr, &res->cinfo);
5899 if (status)
Trond Myklebust91ba2ee2005-10-27 22:12:42 -04005900 goto out;
5901 /*
5902 * Note order: OP_LINK leaves the directory as the current
5903 * filehandle.
5904 */
Trond Myklebust6926afd2012-01-07 13:22:46 -05005905 if (decode_getfattr(xdr, res->dir_attr, res->server))
Trond Myklebust91ba2ee2005-10-27 22:12:42 -04005906 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005907 status = decode_restorefh(xdr);
5908 if (status)
Trond Myklebust91ba2ee2005-10-27 22:12:42 -04005909 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05005910 decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005911out:
5912 return status;
5913}
5914
5915/*
5916 * Decode CREATE response
5917 */
Chuck Leverbf269552010-12-14 14:59:29 +00005918static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5919 struct nfs4_create_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005920{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005921 struct compound_hdr hdr;
5922 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05005923
Chuck Leverbf269552010-12-14 14:59:29 +00005924 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005925 if (status)
5926 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005927 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005928 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005929 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005930 status = decode_putfh(xdr);
5931 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005932 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005933 status = decode_savefh(xdr);
5934 if (status)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04005935 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005936 status = decode_create(xdr, &res->dir_cinfo);
5937 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005938 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005939 status = decode_getfh(xdr, res->fh);
5940 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005941 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05005942 if (decode_getfattr(xdr, res->fattr, res->server))
Trond Myklebust56ae19f2005-10-27 22:12:40 -04005943 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005944 status = decode_restorefh(xdr);
5945 if (status)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04005946 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05005947 decode_getfattr(xdr, res->dir_fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005948out:
5949 return status;
5950}
5951
5952/*
5953 * Decode SYMLINK response
5954 */
Chuck Leverbf269552010-12-14 14:59:29 +00005955static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5956 struct nfs4_create_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005957{
Chuck Leverbf269552010-12-14 14:59:29 +00005958 return nfs4_xdr_dec_create(rqstp, xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005959}
5960
5961/*
5962 * Decode GETATTR response
5963 */
Chuck Leverbf269552010-12-14 14:59:29 +00005964static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5965 struct nfs4_getattr_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005966{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005967 struct compound_hdr hdr;
5968 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05005969
Chuck Leverbf269552010-12-14 14:59:29 +00005970 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005971 if (status)
5972 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005973 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005974 if (status)
5975 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005976 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005977 if (status)
5978 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05005979 status = decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005980out:
5981 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005982}
5983
J. Bruce Fields23ec6962005-06-22 17:16:22 +00005984/*
5985 * Encode an SETACL request
5986 */
Chuck Lever9f06c712010-12-14 14:59:18 +00005987static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr,
5988 struct nfs_setaclargs *args)
J. Bruce Fields23ec6962005-06-22 17:16:22 +00005989{
Andy Adamson05d564f2008-12-23 16:06:15 -05005990 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04005991 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Andy Adamson05d564f2008-12-23 16:06:15 -05005992 };
J. Bruce Fields23ec6962005-06-22 17:16:22 +00005993
Chuck Lever9f06c712010-12-14 14:59:18 +00005994 encode_compound_hdr(xdr, req, &hdr);
5995 encode_sequence(xdr, &args->seq_args, &hdr);
5996 encode_putfh(xdr, args->fh, &hdr);
5997 encode_setacl(xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05005998 encode_nops(&hdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00005999}
Andy Adamson05d564f2008-12-23 16:06:15 -05006000
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006001/*
6002 * Decode SETACL response
6003 */
6004static int
Chuck Leverbf269552010-12-14 14:59:29 +00006005nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
Benny Halevy73c403a2009-04-01 09:22:01 -04006006 struct nfs_setaclres *res)
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006007{
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006008 struct compound_hdr hdr;
6009 int status;
6010
Chuck Leverbf269552010-12-14 14:59:29 +00006011 status = decode_compound_hdr(xdr, &hdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006012 if (status)
6013 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006014 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006015 if (status)
6016 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006017 status = decode_putfh(xdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006018 if (status)
6019 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006020 status = decode_setattr(xdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006021out:
6022 return status;
6023}
Linus Torvalds1da177e2005-04-16 15:20:36 -07006024
6025/*
J. Bruce Fields029d1052005-06-22 17:16:22 +00006026 * Decode GETACL response
6027 */
6028static int
Chuck Leverbf269552010-12-14 14:59:29 +00006029nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
Benny Halevy663c79b2009-04-01 09:21:59 -04006030 struct nfs_getaclres *res)
J. Bruce Fields029d1052005-06-22 17:16:22 +00006031{
J. Bruce Fields029d1052005-06-22 17:16:22 +00006032 struct compound_hdr hdr;
6033 int status;
6034
Chuck Leverbf269552010-12-14 14:59:29 +00006035 status = decode_compound_hdr(xdr, &hdr);
J. Bruce Fields029d1052005-06-22 17:16:22 +00006036 if (status)
6037 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006038 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006039 if (status)
6040 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006041 status = decode_putfh(xdr);
J. Bruce Fields029d1052005-06-22 17:16:22 +00006042 if (status)
6043 goto out;
Andy Adamsonbf118a32011-12-07 11:55:27 -05006044 status = decode_getacl(xdr, rqstp, res);
J. Bruce Fields029d1052005-06-22 17:16:22 +00006045
6046out:
6047 return status;
6048}
6049
6050/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07006051 * Decode CLOSE response
6052 */
Chuck Leverbf269552010-12-14 14:59:29 +00006053static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6054 struct nfs_closeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006055{
Andy Adamson05d564f2008-12-23 16:06:15 -05006056 struct compound_hdr hdr;
6057 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006058
Chuck Leverbf269552010-12-14 14:59:29 +00006059 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006060 if (status)
6061 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006062 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006063 if (status)
6064 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006065 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006066 if (status)
6067 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006068 status = decode_close(xdr, res);
Trond Myklebust516a6af2005-10-27 22:12:41 -04006069 if (status != 0)
6070 goto out;
6071 /*
6072 * Note: Server may do delete on close for this file
6073 * in which case the getattr call will fail with
6074 * an ESTALE error. Shouldn't be a problem,
6075 * though, since fattr->valid will remain unset.
6076 */
Trond Myklebust6926afd2012-01-07 13:22:46 -05006077 decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006078out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006079 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006080}
6081
6082/*
6083 * Decode OPEN response
6084 */
Chuck Leverbf269552010-12-14 14:59:29 +00006085static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6086 struct nfs_openres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006087{
Andy Adamson05d564f2008-12-23 16:06:15 -05006088 struct compound_hdr hdr;
6089 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006090
Chuck Leverbf269552010-12-14 14:59:29 +00006091 status = decode_compound_hdr(xdr, &hdr);
Trond Myklebust56ae19f2005-10-27 22:12:40 -04006092 if (status)
6093 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006094 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006095 if (status)
6096 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006097 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006098 if (status)
6099 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006100 status = decode_savefh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006101 if (status)
6102 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006103 status = decode_open(xdr, res);
Andy Adamson05d564f2008-12-23 16:06:15 -05006104 if (status)
6105 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006106 if (decode_getfh(xdr, &res->fh) != 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006107 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05006108 if (decode_getfattr(xdr, res->f_attr, res->server) != 0)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04006109 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006110 if (decode_restorefh(xdr) != 0)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04006111 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05006112 decode_getfattr(xdr, res->dir_attr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006113out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006114 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006115}
6116
6117/*
6118 * Decode OPEN_CONFIRM response
6119 */
Chuck Leverbf269552010-12-14 14:59:29 +00006120static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp,
6121 struct xdr_stream *xdr,
6122 struct nfs_open_confirmres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006123{
Andy Adamson05d564f2008-12-23 16:06:15 -05006124 struct compound_hdr hdr;
6125 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006126
Chuck Leverbf269552010-12-14 14:59:29 +00006127 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006128 if (status)
6129 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006130 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006131 if (status)
6132 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006133 status = decode_open_confirm(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006134out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006135 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006136}
6137
6138/*
6139 * Decode OPEN response
6140 */
Chuck Leverbf269552010-12-14 14:59:29 +00006141static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp,
6142 struct xdr_stream *xdr,
6143 struct nfs_openres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006144{
Andy Adamson05d564f2008-12-23 16:06:15 -05006145 struct compound_hdr hdr;
6146 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006147
Chuck Leverbf269552010-12-14 14:59:29 +00006148 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006149 if (status)
6150 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006151 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006152 if (status)
6153 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006154 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006155 if (status)
6156 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006157 status = decode_open(xdr, res);
Andy Adamson05d564f2008-12-23 16:06:15 -05006158 if (status)
6159 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05006160 decode_getfattr(xdr, res->f_attr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006161out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006162 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006163}
6164
6165/*
6166 * Decode SETATTR response
6167 */
Chuck Leverbf269552010-12-14 14:59:29 +00006168static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp,
6169 struct xdr_stream *xdr,
6170 struct nfs_setattrres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006171{
Andy Adamson05d564f2008-12-23 16:06:15 -05006172 struct compound_hdr hdr;
6173 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006174
Chuck Leverbf269552010-12-14 14:59:29 +00006175 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006176 if (status)
6177 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006178 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006179 if (status)
6180 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006181 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006182 if (status)
6183 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006184 status = decode_setattr(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006185 if (status)
6186 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05006187 decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006188out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006189 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006190}
6191
6192/*
6193 * Decode LOCK response
6194 */
Chuck Leverbf269552010-12-14 14:59:29 +00006195static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6196 struct nfs_lock_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006197{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006198 struct compound_hdr hdr;
6199 int status;
6200
Chuck Leverbf269552010-12-14 14:59:29 +00006201 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006202 if (status)
6203 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006204 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006205 if (status)
6206 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006207 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006208 if (status)
6209 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006210 status = decode_lock(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006211out:
6212 return status;
6213}
6214
6215/*
6216 * Decode LOCKT response
6217 */
Chuck Leverbf269552010-12-14 14:59:29 +00006218static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6219 struct nfs_lockt_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006220{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006221 struct compound_hdr hdr;
6222 int status;
6223
Chuck Leverbf269552010-12-14 14:59:29 +00006224 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006225 if (status)
6226 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006227 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006228 if (status)
6229 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006230 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006231 if (status)
6232 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006233 status = decode_lockt(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006234out:
6235 return status;
6236}
6237
6238/*
6239 * Decode LOCKU response
6240 */
Chuck Leverbf269552010-12-14 14:59:29 +00006241static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6242 struct nfs_locku_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006243{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006244 struct compound_hdr hdr;
6245 int status;
6246
Chuck Leverbf269552010-12-14 14:59:29 +00006247 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006248 if (status)
6249 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006250 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006251 if (status)
6252 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006253 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006254 if (status)
6255 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006256 status = decode_locku(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006257out:
6258 return status;
6259}
6260
Chuck Leverbf269552010-12-14 14:59:29 +00006261static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp,
6262 struct xdr_stream *xdr, void *dummy)
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04006263{
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04006264 struct compound_hdr hdr;
6265 int status;
6266
Chuck Leverbf269552010-12-14 14:59:29 +00006267 status = decode_compound_hdr(xdr, &hdr);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04006268 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006269 status = decode_release_lockowner(xdr);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04006270 return status;
6271}
6272
Linus Torvalds1da177e2005-04-16 15:20:36 -07006273/*
6274 * Decode READLINK response
6275 */
Chuck Leverbf269552010-12-14 14:59:29 +00006276static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp,
6277 struct xdr_stream *xdr,
Benny Halevyf50c7002009-04-01 09:21:55 -04006278 struct nfs4_readlink_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006279{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006280 struct compound_hdr hdr;
6281 int status;
6282
Chuck Leverbf269552010-12-14 14:59:29 +00006283 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006284 if (status)
6285 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006286 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006287 if (status)
6288 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006289 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006290 if (status)
6291 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006292 status = decode_readlink(xdr, rqstp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006293out:
6294 return status;
6295}
6296
6297/*
6298 * Decode READDIR response
6299 */
Chuck Leverbf269552010-12-14 14:59:29 +00006300static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6301 struct nfs4_readdir_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006302{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006303 struct compound_hdr hdr;
6304 int status;
6305
Chuck Leverbf269552010-12-14 14:59:29 +00006306 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006307 if (status)
6308 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006309 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006310 if (status)
6311 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006312 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006313 if (status)
6314 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006315 status = decode_readdir(xdr, rqstp, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006316out:
6317 return status;
6318}
6319
6320/*
6321 * Decode Read response
6322 */
Chuck Leverbf269552010-12-14 14:59:29 +00006323static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6324 struct nfs_readres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006325{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006326 struct compound_hdr hdr;
6327 int status;
6328
Chuck Leverbf269552010-12-14 14:59:29 +00006329 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006330 if (status)
6331 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006332 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006333 if (status)
6334 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006335 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006336 if (status)
6337 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006338 status = decode_read(xdr, rqstp, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006339 if (!status)
6340 status = res->count;
6341out:
6342 return status;
6343}
6344
6345/*
6346 * Decode WRITE response
6347 */
Chuck Leverbf269552010-12-14 14:59:29 +00006348static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6349 struct nfs_writeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006350{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006351 struct compound_hdr hdr;
6352 int status;
6353
Chuck Leverbf269552010-12-14 14:59:29 +00006354 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006355 if (status)
6356 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006357 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006358 if (status)
6359 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006360 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006361 if (status)
6362 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006363 status = decode_write(xdr, res);
Trond Myklebust4f9838c2005-10-27 22:12:44 -04006364 if (status)
6365 goto out;
Fred Isaman7ffd1062011-03-03 15:13:46 +00006366 if (res->fattr)
Trond Myklebust6926afd2012-01-07 13:22:46 -05006367 decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006368 if (!status)
6369 status = res->count;
6370out:
6371 return status;
6372}
6373
6374/*
6375 * Decode COMMIT response
6376 */
Chuck Leverbf269552010-12-14 14:59:29 +00006377static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6378 struct nfs_writeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006379{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006380 struct compound_hdr hdr;
6381 int status;
6382
Chuck Leverbf269552010-12-14 14:59:29 +00006383 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006384 if (status)
6385 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006386 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006387 if (status)
6388 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006389 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006390 if (status)
6391 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006392 status = decode_commit(xdr, res);
Trond Myklebust4f9838c2005-10-27 22:12:44 -04006393 if (status)
6394 goto out;
Fred Isaman988b6dc2011-03-23 13:27:52 +00006395 if (res->fattr)
Trond Myklebust6926afd2012-01-07 13:22:46 -05006396 decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006397out:
6398 return status;
6399}
6400
6401/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006402 * Decode FSINFO response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006403 */
Chuck Leverbf269552010-12-14 14:59:29 +00006404static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
Benny Halevy3dda5e42009-04-01 09:21:57 -04006405 struct nfs4_fsinfo_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006406{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006407 struct compound_hdr hdr;
6408 int status;
6409
Chuck Leverbf269552010-12-14 14:59:29 +00006410 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006411 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006412 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006413 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006414 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006415 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006416 status = decode_fsinfo(xdr, res->fsinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006417 return status;
6418}
6419
6420/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006421 * Decode PATHCONF response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006422 */
Chuck Leverbf269552010-12-14 14:59:29 +00006423static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
Benny Halevyd45b2982009-04-01 09:21:58 -04006424 struct nfs4_pathconf_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006425{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006426 struct compound_hdr hdr;
6427 int status;
6428
Chuck Leverbf269552010-12-14 14:59:29 +00006429 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006430 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006431 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006432 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006433 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006434 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006435 status = decode_pathconf(xdr, res->pathconf);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006436 return status;
6437}
6438
6439/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006440 * Decode STATFS response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006441 */
Chuck Leverbf269552010-12-14 14:59:29 +00006442static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
Benny Halevy24ad1482009-04-01 09:21:56 -04006443 struct nfs4_statfs_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006444{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006445 struct compound_hdr hdr;
6446 int status;
6447
Chuck Leverbf269552010-12-14 14:59:29 +00006448 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006449 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006450 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006451 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006452 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006453 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006454 status = decode_statfs(xdr, res->fsstat);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006455 return status;
6456}
6457
6458/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006459 * Decode GETATTR_BITMAP response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006460 */
Chuck Leverbf269552010-12-14 14:59:29 +00006461static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req,
6462 struct xdr_stream *xdr,
6463 struct nfs4_server_caps_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006464{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006465 struct compound_hdr hdr;
6466 int status;
6467
Chuck Leverbf269552010-12-14 14:59:29 +00006468 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006469 if (status)
6470 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006471 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006472 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006473 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006474 status = decode_putfh(xdr);
6475 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006476 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006477 status = decode_server_caps(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006478out:
6479 return status;
6480}
6481
6482/*
6483 * Decode RENEW response
6484 */
Chuck Leverbf269552010-12-14 14:59:29 +00006485static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6486 void *__unused)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006487{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006488 struct compound_hdr hdr;
6489 int status;
6490
Chuck Leverbf269552010-12-14 14:59:29 +00006491 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006492 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006493 status = decode_renew(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006494 return status;
6495}
6496
6497/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006498 * Decode SETCLIENTID response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006499 */
Chuck Leverbf269552010-12-14 14:59:29 +00006500static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req,
6501 struct xdr_stream *xdr,
6502 struct nfs4_setclientid_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006503{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006504 struct compound_hdr hdr;
6505 int status;
6506
Chuck Leverbf269552010-12-14 14:59:29 +00006507 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006508 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006509 status = decode_setclientid(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006510 return status;
6511}
6512
6513/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006514 * Decode SETCLIENTID_CONFIRM response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006515 */
Chuck Leverbf269552010-12-14 14:59:29 +00006516static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req,
6517 struct xdr_stream *xdr,
6518 struct nfs_fsinfo *fsinfo)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006519{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006520 struct compound_hdr hdr;
6521 int status;
6522
Chuck Leverbf269552010-12-14 14:59:29 +00006523 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006524 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006525 status = decode_setclientid_confirm(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006526 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006527 status = decode_putrootfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006528 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006529 status = decode_fsinfo(xdr, fsinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006530 return status;
6531}
6532
6533/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006534 * Decode DELEGRETURN response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006535 */
Chuck Leverbf269552010-12-14 14:59:29 +00006536static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp,
6537 struct xdr_stream *xdr,
6538 struct nfs4_delegreturnres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006539{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006540 struct compound_hdr hdr;
6541 int status;
6542
Chuck Leverbf269552010-12-14 14:59:29 +00006543 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006544 if (status)
6545 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006546 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006547 if (status)
Trond Myklebustfa178f22006-01-03 09:55:38 +01006548 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006549 status = decode_putfh(xdr);
Trond Myklebustfa178f22006-01-03 09:55:38 +01006550 if (status != 0)
6551 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006552 status = decode_delegreturn(xdr);
Jeff Layton556ae3b2010-03-21 12:10:36 -04006553 if (status != 0)
6554 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05006555 decode_getfattr(xdr, res->fattr, res->server);
Trond Myklebustfa178f22006-01-03 09:55:38 +01006556out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07006557 return status;
6558}
6559
Trond Myklebust683b57b2006-06-09 09:34:22 -04006560/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006561 * Decode FS_LOCATIONS response
Trond Myklebust683b57b2006-06-09 09:34:22 -04006562 */
Chuck Leverbf269552010-12-14 14:59:29 +00006563static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req,
6564 struct xdr_stream *xdr,
Benny Halevy22958462009-04-01 09:22:02 -04006565 struct nfs4_fs_locations_res *res)
Trond Myklebust683b57b2006-06-09 09:34:22 -04006566{
Trond Myklebust683b57b2006-06-09 09:34:22 -04006567 struct compound_hdr hdr;
6568 int status;
6569
Chuck Leverbf269552010-12-14 14:59:29 +00006570 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006571 if (status)
6572 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006573 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006574 if (status)
Trond Myklebust683b57b2006-06-09 09:34:22 -04006575 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006576 status = decode_putfh(xdr);
6577 if (status)
Trond Myklebust683b57b2006-06-09 09:34:22 -04006578 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006579 status = decode_lookup(xdr);
6580 if (status)
Trond Myklebust683b57b2006-06-09 09:34:22 -04006581 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006582 xdr_enter_page(xdr, PAGE_SIZE);
6583 status = decode_getfattr(xdr, &res->fs_locations->fattr,
Trond Myklebust6926afd2012-01-07 13:22:46 -05006584 res->fs_locations->server);
Trond Myklebust683b57b2006-06-09 09:34:22 -04006585out:
6586 return status;
6587}
6588
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00006589/*
6590 * Decode SECINFO response
6591 */
6592static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp,
6593 struct xdr_stream *xdr,
6594 struct nfs4_secinfo_res *res)
6595{
6596 struct compound_hdr hdr;
6597 int status;
6598
6599 status = decode_compound_hdr(xdr, &hdr);
6600 if (status)
6601 goto out;
6602 status = decode_sequence(xdr, &res->seq_res, rqstp);
6603 if (status)
6604 goto out;
6605 status = decode_putfh(xdr);
6606 if (status)
6607 goto out;
6608 status = decode_secinfo(xdr, res);
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00006609out:
6610 return status;
6611}
6612
Benny Halevy99fe60d2009-04-01 09:22:29 -04006613#if defined(CONFIG_NFS_V4_1)
6614/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006615 * Decode EXCHANGE_ID response
Benny Halevy99fe60d2009-04-01 09:22:29 -04006616 */
Chuck Leverbf269552010-12-14 14:59:29 +00006617static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp,
6618 struct xdr_stream *xdr,
Benny Halevy99fe60d2009-04-01 09:22:29 -04006619 void *res)
6620{
Benny Halevy99fe60d2009-04-01 09:22:29 -04006621 struct compound_hdr hdr;
6622 int status;
6623
Chuck Leverbf269552010-12-14 14:59:29 +00006624 status = decode_compound_hdr(xdr, &hdr);
Benny Halevy99fe60d2009-04-01 09:22:29 -04006625 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006626 status = decode_exchange_id(xdr, res);
Benny Halevy99fe60d2009-04-01 09:22:29 -04006627 return status;
6628}
Andy Adamson2050f0c2009-04-01 09:22:30 -04006629
6630/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006631 * Decode CREATE_SESSION response
Andy Adamsonfc931582009-04-01 09:22:31 -04006632 */
Chuck Leverbf269552010-12-14 14:59:29 +00006633static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp,
6634 struct xdr_stream *xdr,
Andy Adamsonfc931582009-04-01 09:22:31 -04006635 struct nfs41_create_session_res *res)
6636{
Andy Adamsonfc931582009-04-01 09:22:31 -04006637 struct compound_hdr hdr;
6638 int status;
6639
Chuck Leverbf269552010-12-14 14:59:29 +00006640 status = decode_compound_hdr(xdr, &hdr);
Andy Adamsonfc931582009-04-01 09:22:31 -04006641 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006642 status = decode_create_session(xdr, res);
Andy Adamsonfc931582009-04-01 09:22:31 -04006643 return status;
6644}
6645
6646/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006647 * Decode DESTROY_SESSION response
Andy Adamson0f3e66c2009-04-01 09:22:34 -04006648 */
Chuck Leverbf269552010-12-14 14:59:29 +00006649static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp,
6650 struct xdr_stream *xdr,
6651 void *res)
Andy Adamson0f3e66c2009-04-01 09:22:34 -04006652{
Andy Adamson0f3e66c2009-04-01 09:22:34 -04006653 struct compound_hdr hdr;
6654 int status;
6655
Chuck Leverbf269552010-12-14 14:59:29 +00006656 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04006657 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006658 status = decode_destroy_session(xdr, res);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04006659 return status;
6660}
6661
6662/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006663 * Decode SEQUENCE response
Andy Adamsonfc01cea2009-04-01 09:22:36 -04006664 */
Chuck Leverbf269552010-12-14 14:59:29 +00006665static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp,
6666 struct xdr_stream *xdr,
Andy Adamsonfc01cea2009-04-01 09:22:36 -04006667 struct nfs4_sequence_res *res)
6668{
Andy Adamsonfc01cea2009-04-01 09:22:36 -04006669 struct compound_hdr hdr;
6670 int status;
6671
Chuck Leverbf269552010-12-14 14:59:29 +00006672 status = decode_compound_hdr(xdr, &hdr);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04006673 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006674 status = decode_sequence(xdr, res, rqstp);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04006675 return status;
6676}
6677
6678/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006679 * Decode GET_LEASE_TIME response
Andy Adamson2050f0c2009-04-01 09:22:30 -04006680 */
Chuck Leverbf269552010-12-14 14:59:29 +00006681static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp,
6682 struct xdr_stream *xdr,
Andy Adamson2050f0c2009-04-01 09:22:30 -04006683 struct nfs4_get_lease_time_res *res)
6684{
Andy Adamson2050f0c2009-04-01 09:22:30 -04006685 struct compound_hdr hdr;
6686 int status;
6687
Chuck Leverbf269552010-12-14 14:59:29 +00006688 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson2050f0c2009-04-01 09:22:30 -04006689 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006690 status = decode_sequence(xdr, &res->lr_seq_res, rqstp);
Andy Adamson2050f0c2009-04-01 09:22:30 -04006691 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006692 status = decode_putrootfh(xdr);
Andy Adamson2050f0c2009-04-01 09:22:30 -04006693 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006694 status = decode_fsinfo(xdr, res->lr_fsinfo);
Andy Adamson2050f0c2009-04-01 09:22:30 -04006695 return status;
6696}
Ricardo Labiaga180197532009-12-05 16:08:40 -05006697
6698/*
6699 * Decode RECLAIM_COMPLETE response
6700 */
Chuck Leverbf269552010-12-14 14:59:29 +00006701static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp,
6702 struct xdr_stream *xdr,
Ricardo Labiaga180197532009-12-05 16:08:40 -05006703 struct nfs41_reclaim_complete_res *res)
6704{
Ricardo Labiaga180197532009-12-05 16:08:40 -05006705 struct compound_hdr hdr;
6706 int status;
6707
Chuck Leverbf269552010-12-14 14:59:29 +00006708 status = decode_compound_hdr(xdr, &hdr);
Ricardo Labiaga180197532009-12-05 16:08:40 -05006709 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006710 status = decode_sequence(xdr, &res->seq_res, rqstp);
Ricardo Labiaga180197532009-12-05 16:08:40 -05006711 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006712 status = decode_reclaim_complete(xdr, (void *)NULL);
Ricardo Labiaga180197532009-12-05 16:08:40 -05006713 return status;
6714}
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006715
6716/*
Andy Adamson7f11d8d2011-07-30 20:52:35 -04006717 * Decode GETDEVICELIST response
6718 */
6719static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp,
6720 struct xdr_stream *xdr,
6721 struct nfs4_getdevicelist_res *res)
6722{
6723 struct compound_hdr hdr;
6724 int status;
6725
6726 dprintk("encoding getdevicelist!\n");
6727
6728 status = decode_compound_hdr(xdr, &hdr);
6729 if (status != 0)
6730 goto out;
6731 status = decode_sequence(xdr, &res->seq_res, rqstp);
6732 if (status != 0)
6733 goto out;
6734 status = decode_putfh(xdr);
6735 if (status != 0)
6736 goto out;
6737 status = decode_getdevicelist(xdr, res->devlist);
6738out:
6739 return status;
6740}
6741
6742/*
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006743 * Decode GETDEVINFO response
6744 */
Chuck Leverbf269552010-12-14 14:59:29 +00006745static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp,
6746 struct xdr_stream *xdr,
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006747 struct nfs4_getdeviceinfo_res *res)
6748{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006749 struct compound_hdr hdr;
6750 int status;
6751
Chuck Leverbf269552010-12-14 14:59:29 +00006752 status = decode_compound_hdr(xdr, &hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006753 if (status != 0)
6754 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006755 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006756 if (status != 0)
6757 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006758 status = decode_getdeviceinfo(xdr, res->pdev);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006759out:
6760 return status;
6761}
6762
6763/*
6764 * Decode LAYOUTGET response
6765 */
Chuck Leverbf269552010-12-14 14:59:29 +00006766static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp,
6767 struct xdr_stream *xdr,
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006768 struct nfs4_layoutget_res *res)
6769{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006770 struct compound_hdr hdr;
6771 int status;
6772
Chuck Leverbf269552010-12-14 14:59:29 +00006773 status = decode_compound_hdr(xdr, &hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006774 if (status)
6775 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006776 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006777 if (status)
6778 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006779 status = decode_putfh(xdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006780 if (status)
6781 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006782 status = decode_layoutget(xdr, rqstp, res);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006783out:
6784 return status;
6785}
Andy Adamson863a3c62011-03-23 13:27:54 +00006786
6787/*
Benny Halevycbe82602011-05-22 19:52:37 +03006788 * Decode LAYOUTRETURN response
6789 */
6790static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp,
6791 struct xdr_stream *xdr,
6792 struct nfs4_layoutreturn_res *res)
6793{
6794 struct compound_hdr hdr;
6795 int status;
6796
6797 status = decode_compound_hdr(xdr, &hdr);
6798 if (status)
6799 goto out;
6800 status = decode_sequence(xdr, &res->seq_res, rqstp);
6801 if (status)
6802 goto out;
6803 status = decode_putfh(xdr);
6804 if (status)
6805 goto out;
6806 status = decode_layoutreturn(xdr, res);
6807out:
6808 return status;
6809}
6810
6811/*
Andy Adamson863a3c62011-03-23 13:27:54 +00006812 * Decode LAYOUTCOMMIT response
6813 */
6814static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp,
6815 struct xdr_stream *xdr,
6816 struct nfs4_layoutcommit_res *res)
6817{
6818 struct compound_hdr hdr;
6819 int status;
6820
6821 status = decode_compound_hdr(xdr, &hdr);
6822 if (status)
6823 goto out;
6824 status = decode_sequence(xdr, &res->seq_res, rqstp);
6825 if (status)
6826 goto out;
6827 status = decode_putfh(xdr);
6828 if (status)
6829 goto out;
6830 status = decode_layoutcommit(xdr, rqstp, res);
6831 if (status)
6832 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05006833 decode_getfattr(xdr, res->fattr, res->server);
Andy Adamson863a3c62011-03-23 13:27:54 +00006834out:
6835 return status;
6836}
Bryan Schumakerfca78d62011-06-02 14:59:07 -04006837
6838/*
6839 * Decode SECINFO_NO_NAME response
6840 */
6841static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp,
6842 struct xdr_stream *xdr,
6843 struct nfs4_secinfo_res *res)
6844{
6845 struct compound_hdr hdr;
6846 int status;
6847
6848 status = decode_compound_hdr(xdr, &hdr);
6849 if (status)
6850 goto out;
6851 status = decode_sequence(xdr, &res->seq_res, rqstp);
6852 if (status)
6853 goto out;
6854 status = decode_putrootfh(xdr);
6855 if (status)
6856 goto out;
6857 status = decode_secinfo(xdr, res);
6858out:
6859 return status;
6860}
Bryan Schumaker7d974792011-06-02 14:59:08 -04006861
6862/*
6863 * Decode TEST_STATEID response
6864 */
6865static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp,
6866 struct xdr_stream *xdr,
6867 struct nfs41_test_stateid_res *res)
6868{
6869 struct compound_hdr hdr;
6870 int status;
6871
6872 status = decode_compound_hdr(xdr, &hdr);
6873 if (status)
6874 goto out;
6875 status = decode_sequence(xdr, &res->seq_res, rqstp);
6876 if (status)
6877 goto out;
6878 status = decode_test_stateid(xdr, res);
6879out:
6880 return status;
6881}
Bryan Schumaker9aeda352011-06-02 14:59:09 -04006882
6883/*
6884 * Decode FREE_STATEID response
6885 */
6886static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp,
6887 struct xdr_stream *xdr,
6888 struct nfs41_free_stateid_res *res)
6889{
6890 struct compound_hdr hdr;
6891 int status;
6892
6893 status = decode_compound_hdr(xdr, &hdr);
6894 if (status)
6895 goto out;
6896 status = decode_sequence(xdr, &res->seq_res, rqstp);
6897 if (status)
6898 goto out;
6899 status = decode_free_stateid(xdr, res);
6900out:
6901 return status;
6902}
Benny Halevy99fe60d2009-04-01 09:22:29 -04006903#endif /* CONFIG_NFS_V4_1 */
6904
Chuck Lever573c4e12010-12-14 14:58:11 +00006905/**
6906 * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in
6907 * the local page cache.
6908 * @xdr: XDR stream where entry resides
6909 * @entry: buffer to fill in with entry data
6910 * @plus: boolean indicating whether this should be a readdirplus entry
6911 *
6912 * Returns zero if successful, otherwise a negative errno value is
6913 * returned.
6914 *
6915 * This function is not invoked during READDIR reply decoding, but
6916 * rather whenever an application invokes the getdents(2) system call
6917 * on a directory already in our cache.
6918 */
6919int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
6920 int plus)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006921{
Fred Isamandae100c2011-07-30 20:52:37 -04006922 uint32_t bitmap[3] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07006923 uint32_t len;
Bryan Schumakerbabddc72010-10-20 15:44:29 -04006924 __be32 *p = xdr_inline_decode(xdr, 4);
6925 if (unlikely(!p))
6926 goto out_overflow;
Chuck Leverc08e76d2011-01-28 12:40:55 -05006927 if (*p == xdr_zero) {
Bryan Schumakerbabddc72010-10-20 15:44:29 -04006928 p = xdr_inline_decode(xdr, 4);
6929 if (unlikely(!p))
6930 goto out_overflow;
Chuck Leverc08e76d2011-01-28 12:40:55 -05006931 if (*p == xdr_zero)
Chuck Lever573c4e12010-12-14 14:58:11 +00006932 return -EAGAIN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006933 entry->eof = 1;
Chuck Lever573c4e12010-12-14 14:58:11 +00006934 return -EBADCOOKIE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006935 }
6936
Bryan Schumakerbabddc72010-10-20 15:44:29 -04006937 p = xdr_inline_decode(xdr, 12);
6938 if (unlikely(!p))
6939 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006940 entry->prev_cookie = entry->cookie;
6941 p = xdr_decode_hyper(p, &entry->cookie);
Chuck Leverc08e76d2011-01-28 12:40:55 -05006942 entry->len = be32_to_cpup(p);
Bryan Schumakerbabddc72010-10-20 15:44:29 -04006943
Trond Myklebust9af8c222010-10-24 11:52:55 -04006944 p = xdr_inline_decode(xdr, entry->len);
Bryan Schumakerbabddc72010-10-20 15:44:29 -04006945 if (unlikely(!p))
6946 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006947 entry->name = (const char *) p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006948
6949 /*
6950 * In case the server doesn't return an inode number,
6951 * we fake one here. (We don't use inode number 0,
6952 * since glibc seems to choke on it...)
6953 */
6954 entry->ino = 1;
Trond Myklebust4f082222010-10-24 13:14:02 -04006955 entry->fattr->valid = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006956
Trond Myklebust9af8c222010-10-24 11:52:55 -04006957 if (decode_attr_bitmap(xdr, bitmap) < 0)
Bryan Schumakerbabddc72010-10-20 15:44:29 -04006958 goto out_overflow;
Trond Myklebust9af8c222010-10-24 11:52:55 -04006959
6960 if (decode_attr_length(xdr, &len, &p) < 0)
6961 goto out_overflow;
6962
Chuck Lever573c4e12010-12-14 14:58:11 +00006963 if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh,
Trond Myklebust6926afd2012-01-07 13:22:46 -05006964 entry->server) < 0)
Trond Myklebust9af8c222010-10-24 11:52:55 -04006965 goto out_overflow;
Trond Myklebust28331a42011-04-27 13:47:52 -04006966 if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID)
6967 entry->ino = entry->fattr->mounted_on_fileid;
6968 else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID)
Trond Myklebust9af8c222010-10-24 11:52:55 -04006969 entry->ino = entry->fattr->fileid;
6970
Trond Myklebust0b26a0b2010-11-20 14:26:44 -05006971 entry->d_type = DT_UNKNOWN;
6972 if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE)
6973 entry->d_type = nfs_umode_to_dtype(entry->fattr->mode);
6974
Chuck Lever573c4e12010-12-14 14:58:11 +00006975 return 0;
Bryan Schumakerbabddc72010-10-20 15:44:29 -04006976
6977out_overflow:
6978 print_overflow_msg(__func__, xdr);
Chuck Lever573c4e12010-12-14 14:58:11 +00006979 return -EAGAIN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006980}
6981
6982/*
6983 * We need to translate between nfs status return values and
6984 * the local errno values which may not be the same.
6985 */
6986static struct {
6987 int stat;
6988 int errno;
6989} nfs_errtbl[] = {
6990 { NFS4_OK, 0 },
Benny Halevy856dff32008-03-31 17:39:06 +03006991 { NFS4ERR_PERM, -EPERM },
6992 { NFS4ERR_NOENT, -ENOENT },
6993 { NFS4ERR_IO, -errno_NFSERR_IO},
6994 { NFS4ERR_NXIO, -ENXIO },
6995 { NFS4ERR_ACCESS, -EACCES },
6996 { NFS4ERR_EXIST, -EEXIST },
6997 { NFS4ERR_XDEV, -EXDEV },
6998 { NFS4ERR_NOTDIR, -ENOTDIR },
6999 { NFS4ERR_ISDIR, -EISDIR },
7000 { NFS4ERR_INVAL, -EINVAL },
7001 { NFS4ERR_FBIG, -EFBIG },
7002 { NFS4ERR_NOSPC, -ENOSPC },
7003 { NFS4ERR_ROFS, -EROFS },
7004 { NFS4ERR_MLINK, -EMLINK },
7005 { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG },
7006 { NFS4ERR_NOTEMPTY, -ENOTEMPTY },
7007 { NFS4ERR_DQUOT, -EDQUOT },
7008 { NFS4ERR_STALE, -ESTALE },
7009 { NFS4ERR_BADHANDLE, -EBADHANDLE },
Benny Halevy856dff32008-03-31 17:39:06 +03007010 { NFS4ERR_BAD_COOKIE, -EBADCOOKIE },
7011 { NFS4ERR_NOTSUPP, -ENOTSUPP },
7012 { NFS4ERR_TOOSMALL, -ETOOSMALL },
Trond Myklebustfdcb4572010-02-08 09:32:40 -05007013 { NFS4ERR_SERVERFAULT, -EREMOTEIO },
Benny Halevy856dff32008-03-31 17:39:06 +03007014 { NFS4ERR_BADTYPE, -EBADTYPE },
7015 { NFS4ERR_LOCKED, -EAGAIN },
Benny Halevy856dff32008-03-31 17:39:06 +03007016 { NFS4ERR_SYMLINK, -ELOOP },
7017 { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP },
7018 { NFS4ERR_DEADLOCK, -EDEADLK },
Benny Halevy856dff32008-03-31 17:39:06 +03007019 { -1, -EIO }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007020};
7021
7022/*
7023 * Convert an NFS error code to a local one.
7024 * This one is used jointly by NFSv2 and NFSv3.
7025 */
7026static int
David Howells0a8ea432006-08-22 20:06:08 -04007027nfs4_stat_to_errno(int stat)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007028{
7029 int i;
7030 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
7031 if (nfs_errtbl[i].stat == stat)
7032 return nfs_errtbl[i].errno;
7033 }
7034 if (stat <= 10000 || stat > 10100) {
7035 /* The server is looney tunes. */
Trond Myklebustfdcb4572010-02-08 09:32:40 -05007036 return -EREMOTEIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007037 }
7038 /* If we cannot translate the error, the recovery routines should
7039 * handle it.
7040 * Note: remaining NFSv4 error codes have values > 10000, so should
7041 * not conflict with native Linux error codes.
7042 */
Benny Halevy856dff32008-03-31 17:39:06 +03007043 return -stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007044}
7045
Linus Torvalds1da177e2005-04-16 15:20:36 -07007046#define PROC(proc, argtype, restype) \
7047[NFSPROC4_CLNT_##proc] = { \
7048 .p_proc = NFSPROC4_COMPOUND, \
Chuck Lever9f06c712010-12-14 14:59:18 +00007049 .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \
Chuck Leverbf269552010-12-14 14:59:29 +00007050 .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \
Chuck Lever2bea90d2007-03-29 16:47:53 -04007051 .p_arglen = NFS4_##argtype##_sz, \
7052 .p_replen = NFS4_##restype##_sz, \
Chuck Levercc0175c2006-03-20 13:44:22 -05007053 .p_statidx = NFSPROC4_CLNT_##proc, \
7054 .p_name = #proc, \
Andy Adamson05d564f2008-12-23 16:06:15 -05007055}
Linus Torvalds1da177e2005-04-16 15:20:36 -07007056
7057struct rpc_procinfo nfs4_procedures[] = {
Chuck Lever7d93bd712010-12-14 14:57:42 +00007058 PROC(READ, enc_read, dec_read),
7059 PROC(WRITE, enc_write, dec_write),
7060 PROC(COMMIT, enc_commit, dec_commit),
7061 PROC(OPEN, enc_open, dec_open),
7062 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
7063 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
7064 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
7065 PROC(CLOSE, enc_close, dec_close),
7066 PROC(SETATTR, enc_setattr, dec_setattr),
7067 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
7068 PROC(RENEW, enc_renew, dec_renew),
7069 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
7070 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
7071 PROC(LOCK, enc_lock, dec_lock),
7072 PROC(LOCKT, enc_lockt, dec_lockt),
7073 PROC(LOCKU, enc_locku, dec_locku),
7074 PROC(ACCESS, enc_access, dec_access),
7075 PROC(GETATTR, enc_getattr, dec_getattr),
7076 PROC(LOOKUP, enc_lookup, dec_lookup),
7077 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
7078 PROC(REMOVE, enc_remove, dec_remove),
7079 PROC(RENAME, enc_rename, dec_rename),
7080 PROC(LINK, enc_link, dec_link),
7081 PROC(SYMLINK, enc_symlink, dec_symlink),
7082 PROC(CREATE, enc_create, dec_create),
7083 PROC(PATHCONF, enc_pathconf, dec_pathconf),
7084 PROC(STATFS, enc_statfs, dec_statfs),
7085 PROC(READLINK, enc_readlink, dec_readlink),
7086 PROC(READDIR, enc_readdir, dec_readdir),
7087 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
7088 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
7089 PROC(GETACL, enc_getacl, dec_getacl),
7090 PROC(SETACL, enc_setacl, dec_setacl),
7091 PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
7092 PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner),
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00007093 PROC(SECINFO, enc_secinfo, dec_secinfo),
Benny Halevy99fe60d2009-04-01 09:22:29 -04007094#if defined(CONFIG_NFS_V4_1)
Chuck Lever7d93bd712010-12-14 14:57:42 +00007095 PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
7096 PROC(CREATE_SESSION, enc_create_session, dec_create_session),
7097 PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session),
7098 PROC(SEQUENCE, enc_sequence, dec_sequence),
7099 PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time),
7100 PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete),
7101 PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo),
7102 PROC(LAYOUTGET, enc_layoutget, dec_layoutget),
Andy Adamson863a3c62011-03-23 13:27:54 +00007103 PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit),
Benny Halevycbe82602011-05-22 19:52:37 +03007104 PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn),
Bryan Schumakerfca78d62011-06-02 14:59:07 -04007105 PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name),
Bryan Schumaker7d974792011-06-02 14:59:08 -04007106 PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid),
Bryan Schumaker9aeda352011-06-02 14:59:09 -04007107 PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid),
Andy Adamson7f11d8d2011-07-30 20:52:35 -04007108 PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist),
Benny Halevy99fe60d2009-04-01 09:22:29 -04007109#endif /* CONFIG_NFS_V4_1 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007110};
7111
Trond Myklebusta613fa12012-01-20 13:53:56 -05007112const struct rpc_version nfs_version4 = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007113 .number = 4,
Tobias Klausere8c96f82006-03-24 03:15:34 -08007114 .nrprocs = ARRAY_SIZE(nfs4_procedures),
Linus Torvalds1da177e2005-04-16 15:20:36 -07007115 .procs = nfs4_procedures
7116};
7117
7118/*
7119 * Local variables:
7120 * c-basic-offset: 8
7121 * End:
7122 */