blob: 1dce12f41a4f8d48ceedccf192f64fd7617f6713 [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);
2301 encode_getfattr(xdr, args->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);
J. Bruce Fieldsd327cf72009-12-03 08:10:17 -05002520 replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_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 Adamsond0179312008-12-23 16:06:17 -05002525 encode_nops(&hdr);
J. Bruce Fields029d1052005-06-22 17:16:22 +00002526}
2527
2528/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002529 * Encode a WRITE request
2530 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002531static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr,
2532 struct nfs_writeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002533{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002534 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002535 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002536 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002537
Chuck Lever9f06c712010-12-14 14:59:18 +00002538 encode_compound_hdr(xdr, req, &hdr);
2539 encode_sequence(xdr, &args->seq_args, &hdr);
2540 encode_putfh(xdr, args->fh, &hdr);
2541 encode_write(xdr, args, &hdr);
\"Talpey, Thomas\4f22ccc2007-09-10 13:44:58 -04002542 req->rq_snd_buf.flags |= XDRBUF_WRITE;
Fred Isaman7ffd1062011-03-03 15:13:46 +00002543 if (args->bitmask)
2544 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002545 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002546}
2547
2548/*
2549 * a COMMIT request
2550 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002551static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
2552 struct nfs_writeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002553{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002554 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002555 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002556 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002557
Chuck Lever9f06c712010-12-14 14:59:18 +00002558 encode_compound_hdr(xdr, req, &hdr);
2559 encode_sequence(xdr, &args->seq_args, &hdr);
2560 encode_putfh(xdr, args->fh, &hdr);
2561 encode_commit(xdr, args, &hdr);
Fred Isaman988b6dc2011-03-23 13:27:52 +00002562 if (args->bitmask)
2563 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002564 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002565}
2566
2567/*
2568 * FSINFO request
2569 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002570static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
2571 struct nfs4_fsinfo_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002572{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002573 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002574 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002575 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002576
Chuck Lever9f06c712010-12-14 14:59:18 +00002577 encode_compound_hdr(xdr, req, &hdr);
2578 encode_sequence(xdr, &args->seq_args, &hdr);
2579 encode_putfh(xdr, args->fh, &hdr);
2580 encode_fsinfo(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002581 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002582}
2583
2584/*
2585 * a PATHCONF request
2586 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002587static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
2588 const struct nfs4_pathconf_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002589{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002590 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002591 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002592 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002593
Chuck Lever9f06c712010-12-14 14:59:18 +00002594 encode_compound_hdr(xdr, req, &hdr);
2595 encode_sequence(xdr, &args->seq_args, &hdr);
2596 encode_putfh(xdr, args->fh, &hdr);
2597 encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0],
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002598 &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002599 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002600}
2601
2602/*
2603 * a STATFS request
2604 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002605static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
2606 const struct nfs4_statfs_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002607{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002608 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002609 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002610 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002611
Chuck Lever9f06c712010-12-14 14:59:18 +00002612 encode_compound_hdr(xdr, req, &hdr);
2613 encode_sequence(xdr, &args->seq_args, &hdr);
2614 encode_putfh(xdr, args->fh, &hdr);
2615 encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0],
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002616 args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002617 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002618}
2619
2620/*
2621 * GETATTR_BITMAP request
2622 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002623static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
2624 struct xdr_stream *xdr,
2625 struct nfs4_server_caps_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002626{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002627 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002628 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002629 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002630
Chuck Lever9f06c712010-12-14 14:59:18 +00002631 encode_compound_hdr(xdr, req, &hdr);
2632 encode_sequence(xdr, &args->seq_args, &hdr);
2633 encode_putfh(xdr, args->fhandle, &hdr);
2634 encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002635 FATTR4_WORD0_LINK_SUPPORT|
2636 FATTR4_WORD0_SYMLINK_SUPPORT|
2637 FATTR4_WORD0_ACLSUPPORT, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002638 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002639}
2640
2641/*
2642 * a RENEW request
2643 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002644static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
2645 struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002646{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002647 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002648 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002649 };
2650
Chuck Lever9f06c712010-12-14 14:59:18 +00002651 encode_compound_hdr(xdr, req, &hdr);
2652 encode_renew(xdr, clp, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002653 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002654}
2655
2656/*
2657 * a SETCLIENTID request
2658 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002659static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req,
2660 struct xdr_stream *xdr,
2661 struct nfs4_setclientid *sc)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002662{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002663 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002664 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002665 };
2666
Chuck Lever9f06c712010-12-14 14:59:18 +00002667 encode_compound_hdr(xdr, req, &hdr);
2668 encode_setclientid(xdr, sc, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002669 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002670}
2671
2672/*
2673 * a SETCLIENTID_CONFIRM request
2674 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002675static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req,
2676 struct xdr_stream *xdr,
2677 struct nfs4_setclientid_res *arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002678{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002679 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002680 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002681 };
Fred Isamandae100c2011-07-30 20:52:37 -04002682 const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002683
Chuck Lever9f06c712010-12-14 14:59:18 +00002684 encode_compound_hdr(xdr, req, &hdr);
2685 encode_setclientid_confirm(xdr, arg, &hdr);
2686 encode_putrootfh(xdr, &hdr);
2687 encode_fsinfo(xdr, lease_bitmap, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002688 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002689}
2690
2691/*
2692 * DELEGRETURN request
2693 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002694static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
2695 struct xdr_stream *xdr,
2696 const struct nfs4_delegreturnargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002697{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002698 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002699 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002700 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002701
Chuck Lever9f06c712010-12-14 14:59:18 +00002702 encode_compound_hdr(xdr, req, &hdr);
2703 encode_sequence(xdr, &args->seq_args, &hdr);
2704 encode_putfh(xdr, args->fhandle, &hdr);
2705 encode_delegreturn(xdr, args->stateid, &hdr);
2706 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002707 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002708}
2709
2710/*
Trond Myklebust683b57b2006-06-09 09:34:22 -04002711 * Encode FS_LOCATIONS request
2712 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002713static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
2714 struct xdr_stream *xdr,
2715 struct nfs4_fs_locations_arg *args)
Trond Myklebust683b57b2006-06-09 09:34:22 -04002716{
Trond Myklebust683b57b2006-06-09 09:34:22 -04002717 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002718 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Trond Myklebust683b57b2006-06-09 09:34:22 -04002719 };
Benny Halevy28f56692009-04-01 09:22:09 -04002720 uint32_t replen;
Trond Myklebust683b57b2006-06-09 09:34:22 -04002721
Chuck Lever9f06c712010-12-14 14:59:18 +00002722 encode_compound_hdr(xdr, req, &hdr);
2723 encode_sequence(xdr, &args->seq_args, &hdr);
2724 encode_putfh(xdr, args->dir_fh, &hdr);
2725 encode_lookup(xdr, args->name, &hdr);
Benny Halevy28f56692009-04-01 09:22:09 -04002726 replen = hdr.replen; /* get the attribute into args->page */
Chuck Lever9f06c712010-12-14 14:59:18 +00002727 encode_fs_locations(xdr, args->bitmask, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002728
Benny Halevy28f56692009-04-01 09:22:09 -04002729 xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
Trond Myklebust683b57b2006-06-09 09:34:22 -04002730 0, PAGE_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -05002731 encode_nops(&hdr);
Trond Myklebust683b57b2006-06-09 09:34:22 -04002732}
2733
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00002734/*
2735 * Encode SECINFO request
2736 */
2737static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
2738 struct xdr_stream *xdr,
2739 struct nfs4_secinfo_arg *args)
2740{
2741 struct compound_hdr hdr = {
2742 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2743 };
2744
2745 encode_compound_hdr(xdr, req, &hdr);
2746 encode_sequence(xdr, &args->seq_args, &hdr);
2747 encode_putfh(xdr, args->dir_fh, &hdr);
2748 encode_secinfo(xdr, args->name, &hdr);
2749 encode_nops(&hdr);
2750}
2751
Benny Halevy99fe60d2009-04-01 09:22:29 -04002752#if defined(CONFIG_NFS_V4_1)
2753/*
2754 * EXCHANGE_ID request
2755 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002756static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req,
2757 struct xdr_stream *xdr,
2758 struct nfs41_exchange_id_args *args)
Benny Halevy99fe60d2009-04-01 09:22:29 -04002759{
Benny Halevy99fe60d2009-04-01 09:22:29 -04002760 struct compound_hdr hdr = {
Trond Myklebusta4432342010-06-16 09:52:27 -04002761 .minorversion = args->client->cl_mvops->minor_version,
Benny Halevy99fe60d2009-04-01 09:22:29 -04002762 };
2763
Chuck Lever9f06c712010-12-14 14:59:18 +00002764 encode_compound_hdr(xdr, req, &hdr);
2765 encode_exchange_id(xdr, args, &hdr);
Benny Halevy99fe60d2009-04-01 09:22:29 -04002766 encode_nops(&hdr);
Benny Halevy99fe60d2009-04-01 09:22:29 -04002767}
Andy Adamson2050f0c2009-04-01 09:22:30 -04002768
2769/*
Andy Adamsonfc931582009-04-01 09:22:31 -04002770 * a CREATE_SESSION request
2771 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002772static void nfs4_xdr_enc_create_session(struct rpc_rqst *req,
2773 struct xdr_stream *xdr,
2774 struct nfs41_create_session_args *args)
Andy Adamsonfc931582009-04-01 09:22:31 -04002775{
Andy Adamsonfc931582009-04-01 09:22:31 -04002776 struct compound_hdr hdr = {
Trond Myklebusta4432342010-06-16 09:52:27 -04002777 .minorversion = args->client->cl_mvops->minor_version,
Andy Adamsonfc931582009-04-01 09:22:31 -04002778 };
2779
Chuck Lever9f06c712010-12-14 14:59:18 +00002780 encode_compound_hdr(xdr, req, &hdr);
2781 encode_create_session(xdr, args, &hdr);
Andy Adamsonfc931582009-04-01 09:22:31 -04002782 encode_nops(&hdr);
Andy Adamsonfc931582009-04-01 09:22:31 -04002783}
2784
2785/*
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002786 * a DESTROY_SESSION request
2787 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002788static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req,
2789 struct xdr_stream *xdr,
2790 struct nfs4_session *session)
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002791{
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002792 struct compound_hdr hdr = {
Trond Myklebusta4432342010-06-16 09:52:27 -04002793 .minorversion = session->clp->cl_mvops->minor_version,
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002794 };
2795
Chuck Lever9f06c712010-12-14 14:59:18 +00002796 encode_compound_hdr(xdr, req, &hdr);
2797 encode_destroy_session(xdr, session, &hdr);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002798 encode_nops(&hdr);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002799}
2800
2801/*
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002802 * a SEQUENCE request
2803 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002804static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr,
2805 struct nfs4_sequence_args *args)
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002806{
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002807 struct compound_hdr hdr = {
2808 .minorversion = nfs4_xdr_minorversion(args),
2809 };
2810
Chuck Lever9f06c712010-12-14 14:59:18 +00002811 encode_compound_hdr(xdr, req, &hdr);
2812 encode_sequence(xdr, args, &hdr);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002813 encode_nops(&hdr);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002814}
2815
2816/*
Andy Adamson2050f0c2009-04-01 09:22:30 -04002817 * a GET_LEASE_TIME request
2818 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002819static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req,
2820 struct xdr_stream *xdr,
2821 struct nfs4_get_lease_time_args *args)
Andy Adamson2050f0c2009-04-01 09:22:30 -04002822{
Andy Adamson2050f0c2009-04-01 09:22:30 -04002823 struct compound_hdr hdr = {
2824 .minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
2825 };
Fred Isamandae100c2011-07-30 20:52:37 -04002826 const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME };
Andy Adamson2050f0c2009-04-01 09:22:30 -04002827
Chuck Lever9f06c712010-12-14 14:59:18 +00002828 encode_compound_hdr(xdr, req, &hdr);
2829 encode_sequence(xdr, &args->la_seq_args, &hdr);
2830 encode_putrootfh(xdr, &hdr);
2831 encode_fsinfo(xdr, lease_bitmap, &hdr);
Andy Adamson2050f0c2009-04-01 09:22:30 -04002832 encode_nops(&hdr);
Andy Adamson2050f0c2009-04-01 09:22:30 -04002833}
Ricardo Labiaga180197532009-12-05 16:08:40 -05002834
2835/*
2836 * a RECLAIM_COMPLETE request
2837 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002838static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req,
2839 struct xdr_stream *xdr,
2840 struct nfs41_reclaim_complete_args *args)
Ricardo Labiaga180197532009-12-05 16:08:40 -05002841{
Ricardo Labiaga180197532009-12-05 16:08:40 -05002842 struct compound_hdr hdr = {
2843 .minorversion = nfs4_xdr_minorversion(&args->seq_args)
2844 };
2845
Chuck Lever9f06c712010-12-14 14:59:18 +00002846 encode_compound_hdr(xdr, req, &hdr);
2847 encode_sequence(xdr, &args->seq_args, &hdr);
2848 encode_reclaim_complete(xdr, args, &hdr);
Ricardo Labiaga180197532009-12-05 16:08:40 -05002849 encode_nops(&hdr);
Ricardo Labiaga180197532009-12-05 16:08:40 -05002850}
2851
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002852/*
Andy Adamson7f11d8d2011-07-30 20:52:35 -04002853 * Encode GETDEVICELIST request
2854 */
2855static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req,
2856 struct xdr_stream *xdr,
2857 struct nfs4_getdevicelist_args *args)
2858{
2859 struct compound_hdr hdr = {
2860 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2861 };
2862
2863 encode_compound_hdr(xdr, req, &hdr);
2864 encode_sequence(xdr, &args->seq_args, &hdr);
2865 encode_putfh(xdr, args->fh, &hdr);
2866 encode_getdevicelist(xdr, args, &hdr);
2867 encode_nops(&hdr);
2868}
2869
2870/*
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002871 * Encode GETDEVICEINFO request
2872 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002873static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req,
2874 struct xdr_stream *xdr,
2875 struct nfs4_getdeviceinfo_args *args)
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002876{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002877 struct compound_hdr hdr = {
2878 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2879 };
2880
Chuck Lever9f06c712010-12-14 14:59:18 +00002881 encode_compound_hdr(xdr, req, &hdr);
2882 encode_sequence(xdr, &args->seq_args, &hdr);
2883 encode_getdeviceinfo(xdr, args, &hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002884
2885 /* set up reply kvec. Subtract notification bitmap max size (2)
2886 * so that notification bitmap is put in xdr_buf tail */
2887 xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2,
2888 args->pdev->pages, args->pdev->pgbase,
2889 args->pdev->pglen);
2890
2891 encode_nops(&hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002892}
2893
2894/*
2895 * Encode LAYOUTGET request
2896 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002897static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
2898 struct xdr_stream *xdr,
2899 struct nfs4_layoutget_args *args)
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002900{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002901 struct compound_hdr hdr = {
2902 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2903 };
2904
Chuck Lever9f06c712010-12-14 14:59:18 +00002905 encode_compound_hdr(xdr, req, &hdr);
2906 encode_sequence(xdr, &args->seq_args, &hdr);
2907 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2908 encode_layoutget(xdr, args, &hdr);
Weston Andros Adamson35124a02011-03-24 16:48:21 -04002909
2910 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
2911 args->layout.pages, 0, args->layout.pglen);
2912
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002913 encode_nops(&hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002914}
Andy Adamson863a3c62011-03-23 13:27:54 +00002915
2916/*
2917 * Encode LAYOUTCOMMIT request
2918 */
Benny Halevycbe82602011-05-22 19:52:37 +03002919static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req,
2920 struct xdr_stream *xdr,
2921 struct nfs4_layoutcommit_args *args)
Andy Adamson863a3c62011-03-23 13:27:54 +00002922{
Benny Halevyac7db722011-05-22 19:53:48 +03002923 struct nfs4_layoutcommit_data *data =
2924 container_of(args, struct nfs4_layoutcommit_data, args);
Andy Adamson863a3c62011-03-23 13:27:54 +00002925 struct compound_hdr hdr = {
2926 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2927 };
2928
2929 encode_compound_hdr(xdr, req, &hdr);
2930 encode_sequence(xdr, &args->seq_args, &hdr);
2931 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
Benny Halevyac7db722011-05-22 19:53:48 +03002932 encode_layoutcommit(xdr, data->args.inode, args, &hdr);
Andy Adamson863a3c62011-03-23 13:27:54 +00002933 encode_getfattr(xdr, args->bitmask, &hdr);
2934 encode_nops(&hdr);
Benny Halevycbe82602011-05-22 19:52:37 +03002935}
2936
2937/*
2938 * Encode LAYOUTRETURN request
2939 */
2940static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req,
2941 struct xdr_stream *xdr,
2942 struct nfs4_layoutreturn_args *args)
2943{
2944 struct compound_hdr hdr = {
2945 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2946 };
2947
2948 encode_compound_hdr(xdr, req, &hdr);
2949 encode_sequence(xdr, &args->seq_args, &hdr);
2950 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2951 encode_layoutreturn(xdr, args, &hdr);
2952 encode_nops(&hdr);
Andy Adamson863a3c62011-03-23 13:27:54 +00002953}
Bryan Schumakerfca78d62011-06-02 14:59:07 -04002954
2955/*
2956 * Encode SECINFO_NO_NAME request
2957 */
2958static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
2959 struct xdr_stream *xdr,
2960 struct nfs41_secinfo_no_name_args *args)
2961{
2962 struct compound_hdr hdr = {
2963 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2964 };
2965
2966 encode_compound_hdr(xdr, req, &hdr);
2967 encode_sequence(xdr, &args->seq_args, &hdr);
2968 encode_putrootfh(xdr, &hdr);
2969 encode_secinfo_no_name(xdr, args, &hdr);
2970 encode_nops(&hdr);
2971 return 0;
2972}
Bryan Schumaker7d974792011-06-02 14:59:08 -04002973
2974/*
2975 * Encode TEST_STATEID request
2976 */
2977static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req,
2978 struct xdr_stream *xdr,
2979 struct nfs41_test_stateid_args *args)
2980{
2981 struct compound_hdr hdr = {
2982 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2983 };
2984
2985 encode_compound_hdr(xdr, req, &hdr);
2986 encode_sequence(xdr, &args->seq_args, &hdr);
2987 encode_test_stateid(xdr, args, &hdr);
2988 encode_nops(&hdr);
2989}
Bryan Schumaker9aeda352011-06-02 14:59:09 -04002990
2991/*
2992 * Encode FREE_STATEID request
2993 */
2994static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req,
2995 struct xdr_stream *xdr,
2996 struct nfs41_free_stateid_args *args)
2997{
2998 struct compound_hdr hdr = {
2999 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
3000 };
3001
3002 encode_compound_hdr(xdr, req, &hdr);
3003 encode_sequence(xdr, &args->seq_args, &hdr);
3004 encode_free_stateid(xdr, args, &hdr);
3005 encode_nops(&hdr);
3006}
Benny Halevy99fe60d2009-04-01 09:22:29 -04003007#endif /* CONFIG_NFS_V4_1 */
3008
Benny Halevy686841b2009-08-14 17:19:48 +03003009static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
3010{
3011 dprintk("nfs: %s: prematurely hit end of receive buffer. "
3012 "Remaining buffer length is %tu words.\n",
3013 func, xdr->end - xdr->p);
3014}
Linus Torvalds1da177e2005-04-16 15:20:36 -07003015
Trond Myklebust683b57b2006-06-09 09:34:22 -04003016static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003017{
Al Viro8687b632006-10-19 23:28:48 -07003018 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003019
Benny Halevyc0eae662009-08-14 17:20:14 +03003020 p = xdr_inline_decode(xdr, 4);
3021 if (unlikely(!p))
3022 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003023 *len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003024 p = xdr_inline_decode(xdr, *len);
3025 if (unlikely(!p))
3026 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003027 *string = (char *)p;
3028 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003029out_overflow:
3030 print_overflow_msg(__func__, xdr);
3031 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003032}
3033
3034static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
3035{
Al Viro8687b632006-10-19 23:28:48 -07003036 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003037
Benny Halevyc0eae662009-08-14 17:20:14 +03003038 p = xdr_inline_decode(xdr, 8);
3039 if (unlikely(!p))
3040 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003041 hdr->status = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03003042 hdr->taglen = be32_to_cpup(p);
Andy Adamson6c0195a2008-12-23 16:06:15 -05003043
Benny Halevyc0eae662009-08-14 17:20:14 +03003044 p = xdr_inline_decode(xdr, hdr->taglen + 4);
3045 if (unlikely(!p))
3046 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003047 hdr->tag = (char *)p;
3048 p += XDR_QUADLEN(hdr->taglen);
Benny Halevycccddf42009-08-14 17:20:19 +03003049 hdr->nops = be32_to_cpup(p);
Benny Halevyaadf6152008-12-23 16:06:13 -05003050 if (unlikely(hdr->nops < 1))
3051 return nfs4_stat_to_errno(hdr->status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003052 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003053out_overflow:
3054 print_overflow_msg(__func__, xdr);
3055 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003056}
3057
3058static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
3059{
Al Viro8687b632006-10-19 23:28:48 -07003060 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003061 uint32_t opnum;
3062 int32_t nfserr;
3063
Benny Halevyc0eae662009-08-14 17:20:14 +03003064 p = xdr_inline_decode(xdr, 8);
3065 if (unlikely(!p))
3066 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003067 opnum = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003068 if (opnum != expected) {
Chuck Leverfe82a182007-09-11 18:01:10 -04003069 dprintk("nfs: Server returned operation"
3070 " %d but we issued a request for %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07003071 opnum, expected);
3072 return -EIO;
3073 }
Benny Halevycccddf42009-08-14 17:20:19 +03003074 nfserr = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003075 if (nfserr != NFS_OK)
Benny Halevy856dff32008-03-31 17:39:06 +03003076 return nfs4_stat_to_errno(nfserr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003077 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003078out_overflow:
3079 print_overflow_msg(__func__, xdr);
3080 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003081}
3082
3083/* Dummy routine */
David Howellsadfa6f92006-08-22 20:06:08 -04003084static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003085{
Al Viro8687b632006-10-19 23:28:48 -07003086 __be32 *p;
Trond Myklebust683b57b2006-06-09 09:34:22 -04003087 unsigned int strlen;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003088 char *str;
3089
Benny Halevyc0eae662009-08-14 17:20:14 +03003090 p = xdr_inline_decode(xdr, 12);
3091 if (likely(p))
3092 return decode_opaque_inline(xdr, &strlen, &str);
3093 print_overflow_msg(__func__, xdr);
3094 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003095}
3096
3097static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
3098{
Al Viro8687b632006-10-19 23:28:48 -07003099 uint32_t bmlen;
3100 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003101
Benny Halevyc0eae662009-08-14 17:20:14 +03003102 p = xdr_inline_decode(xdr, 4);
3103 if (unlikely(!p))
3104 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003105 bmlen = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003106
Fred Isamandae100c2011-07-30 20:52:37 -04003107 bitmap[0] = bitmap[1] = bitmap[2] = 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003108 p = xdr_inline_decode(xdr, (bmlen << 2));
3109 if (unlikely(!p))
3110 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003111 if (bmlen > 0) {
Benny Halevy6f723f72009-08-14 17:19:37 +03003112 bitmap[0] = be32_to_cpup(p++);
Fred Isamandae100c2011-07-30 20:52:37 -04003113 if (bmlen > 1) {
3114 bitmap[1] = be32_to_cpup(p++);
3115 if (bmlen > 2)
3116 bitmap[2] = be32_to_cpup(p);
3117 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003118 }
3119 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003120out_overflow:
3121 print_overflow_msg(__func__, xdr);
3122 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003123}
3124
Al Viro8687b632006-10-19 23:28:48 -07003125static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003126{
Al Viro8687b632006-10-19 23:28:48 -07003127 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003128
Benny Halevyc0eae662009-08-14 17:20:14 +03003129 p = xdr_inline_decode(xdr, 4);
3130 if (unlikely(!p))
3131 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003132 *attrlen = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003133 *savep = xdr->p;
3134 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003135out_overflow:
3136 print_overflow_msg(__func__, xdr);
3137 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003138}
3139
3140static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
3141{
3142 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
Roman Borisov3388bff2010-10-13 16:54:51 +04003143 int ret;
3144 ret = decode_attr_bitmap(xdr, bitmask);
3145 if (unlikely(ret < 0))
3146 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003147 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
3148 } else
Fred Isamandae100c2011-07-30 20:52:37 -04003149 bitmask[0] = bitmask[1] = bitmask[2] = 0;
3150 dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__,
3151 bitmask[0], bitmask[1], bitmask[2]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003152 return 0;
3153}
3154
3155static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
3156{
Al Viro8687b632006-10-19 23:28:48 -07003157 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003158 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003159
3160 *type = 0;
3161 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
3162 return -EIO;
3163 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003164 p = xdr_inline_decode(xdr, 4);
3165 if (unlikely(!p))
3166 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003167 *type = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003168 if (*type < NF4REG || *type > NF4NAMEDATTR) {
Harvey Harrison3110ff82008-05-02 13:42:44 -07003169 dprintk("%s: bad type %d\n", __func__, *type);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003170 return -EIO;
3171 }
3172 bitmap[0] &= ~FATTR4_WORD0_TYPE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003173 ret = NFS_ATTR_FATTR_TYPE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003174 }
Trond Myklebustbca79472009-03-11 14:10:26 -04003175 dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]);
Trond Myklebust409924e2009-03-11 14:10:27 -04003176 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003177out_overflow:
3178 print_overflow_msg(__func__, xdr);
3179 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003180}
3181
3182static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
3183{
Al Viro8687b632006-10-19 23:28:48 -07003184 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003185 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003186
3187 *change = 0;
3188 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
3189 return -EIO;
3190 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003191 p = xdr_inline_decode(xdr, 8);
3192 if (unlikely(!p))
3193 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003194 xdr_decode_hyper(p, change);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003195 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003196 ret = NFS_ATTR_FATTR_CHANGE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003197 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003198 dprintk("%s: change attribute=%Lu\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003199 (unsigned long long)*change);
Trond Myklebust409924e2009-03-11 14:10:27 -04003200 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003201out_overflow:
3202 print_overflow_msg(__func__, xdr);
3203 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003204}
3205
3206static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
3207{
Al Viro8687b632006-10-19 23:28:48 -07003208 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003209 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003210
3211 *size = 0;
3212 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
3213 return -EIO;
3214 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003215 p = xdr_inline_decode(xdr, 8);
3216 if (unlikely(!p))
3217 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003218 xdr_decode_hyper(p, size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003219 bitmap[0] &= ~FATTR4_WORD0_SIZE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003220 ret = NFS_ATTR_FATTR_SIZE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003221 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003222 dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size);
Trond Myklebust409924e2009-03-11 14:10:27 -04003223 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003224out_overflow:
3225 print_overflow_msg(__func__, xdr);
3226 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003227}
3228
3229static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3230{
Al Viro8687b632006-10-19 23:28:48 -07003231 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003232
3233 *res = 0;
3234 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
3235 return -EIO;
3236 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003237 p = xdr_inline_decode(xdr, 4);
3238 if (unlikely(!p))
3239 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003240 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003241 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
3242 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003243 dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true");
Linus Torvalds1da177e2005-04-16 15:20:36 -07003244 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003245out_overflow:
3246 print_overflow_msg(__func__, xdr);
3247 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003248}
3249
3250static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3251{
Al Viro8687b632006-10-19 23:28:48 -07003252 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003253
3254 *res = 0;
3255 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
3256 return -EIO;
3257 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003258 p = xdr_inline_decode(xdr, 4);
3259 if (unlikely(!p))
3260 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003261 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003262 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
3263 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003264 dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true");
Linus Torvalds1da177e2005-04-16 15:20:36 -07003265 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003266out_overflow:
3267 print_overflow_msg(__func__, xdr);
3268 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003269}
3270
Trond Myklebust8b4bdcf2006-06-09 09:34:19 -04003271static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003272{
Al Viro8687b632006-10-19 23:28:48 -07003273 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003274 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003275
3276 fsid->major = 0;
3277 fsid->minor = 0;
3278 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
3279 return -EIO;
3280 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003281 p = xdr_inline_decode(xdr, 16);
3282 if (unlikely(!p))
3283 goto out_overflow;
Benny Halevy3ceb4db2009-08-14 17:19:41 +03003284 p = xdr_decode_hyper(p, &fsid->major);
Benny Halevycccddf42009-08-14 17:20:19 +03003285 xdr_decode_hyper(p, &fsid->minor);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003286 bitmap[0] &= ~FATTR4_WORD0_FSID;
Trond Myklebust409924e2009-03-11 14:10:27 -04003287 ret = NFS_ATTR_FATTR_FSID;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003288 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003289 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003290 (unsigned long long)fsid->major,
3291 (unsigned long long)fsid->minor);
Trond Myklebust409924e2009-03-11 14:10:27 -04003292 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003293out_overflow:
3294 print_overflow_msg(__func__, xdr);
3295 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003296}
3297
3298static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3299{
Al Viro8687b632006-10-19 23:28:48 -07003300 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003301
3302 *res = 60;
3303 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
3304 return -EIO;
3305 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003306 p = xdr_inline_decode(xdr, 4);
3307 if (unlikely(!p))
3308 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003309 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003310 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
3311 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003312 dprintk("%s: file size=%u\n", __func__, (unsigned int)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003313 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003314out_overflow:
3315 print_overflow_msg(__func__, xdr);
3316 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003317}
3318
Trond Myklebustee7b75f2011-06-16 13:15:41 -04003319static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res)
Bryan Schumakerae42c702010-10-21 16:33:17 -04003320{
3321 __be32 *p;
3322
3323 if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U)))
3324 return -EIO;
3325 if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) {
3326 p = xdr_inline_decode(xdr, 4);
3327 if (unlikely(!p))
3328 goto out_overflow;
3329 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
Trond Myklebustee7b75f2011-06-16 13:15:41 -04003330 *res = -be32_to_cpup(p);
Bryan Schumakerae42c702010-10-21 16:33:17 -04003331 }
3332 return 0;
3333out_overflow:
3334 print_overflow_msg(__func__, xdr);
3335 return -EIO;
3336}
3337
3338static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh)
3339{
3340 __be32 *p;
3341 int len;
3342
Trond Myklebust7ad07352010-10-23 15:34:20 -04003343 if (fh != NULL)
3344 memset(fh, 0, sizeof(*fh));
Bryan Schumakerae42c702010-10-21 16:33:17 -04003345
3346 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U)))
3347 return -EIO;
3348 if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) {
3349 p = xdr_inline_decode(xdr, 4);
3350 if (unlikely(!p))
3351 goto out_overflow;
3352 len = be32_to_cpup(p);
3353 if (len > NFS4_FHSIZE)
3354 return -EIO;
Bryan Schumakerae42c702010-10-21 16:33:17 -04003355 p = xdr_inline_decode(xdr, len);
3356 if (unlikely(!p))
3357 goto out_overflow;
Trond Myklebust7ad07352010-10-23 15:34:20 -04003358 if (fh != NULL) {
3359 memcpy(fh->data, p, len);
3360 fh->size = len;
3361 }
Bryan Schumakerae42c702010-10-21 16:33:17 -04003362 bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE;
3363 }
3364 return 0;
3365out_overflow:
3366 print_overflow_msg(__func__, xdr);
3367 return -EIO;
3368}
3369
Linus Torvalds1da177e2005-04-16 15:20:36 -07003370static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3371{
Al Viro8687b632006-10-19 23:28:48 -07003372 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003373
3374 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
3375 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
3376 return -EIO;
3377 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003378 p = xdr_inline_decode(xdr, 4);
3379 if (unlikely(!p))
3380 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003381 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003382 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
3383 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003384 dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003385 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003386out_overflow:
3387 print_overflow_msg(__func__, xdr);
3388 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003389}
3390
3391static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3392{
Al Viro8687b632006-10-19 23:28:48 -07003393 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003394 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003395
3396 *fileid = 0;
3397 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
3398 return -EIO;
3399 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003400 p = xdr_inline_decode(xdr, 8);
3401 if (unlikely(!p))
3402 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003403 xdr_decode_hyper(p, fileid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003404 bitmap[0] &= ~FATTR4_WORD0_FILEID;
Trond Myklebust409924e2009-03-11 14:10:27 -04003405 ret = NFS_ATTR_FATTR_FILEID;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003406 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003407 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
Trond Myklebust409924e2009-03-11 14:10:27 -04003408 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003409out_overflow:
3410 print_overflow_msg(__func__, xdr);
3411 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003412}
3413
Manoj Naik99baf622006-06-09 09:34:24 -04003414static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3415{
Al Viro8687b632006-10-19 23:28:48 -07003416 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003417 int ret = 0;
Manoj Naik99baf622006-06-09 09:34:24 -04003418
3419 *fileid = 0;
3420 if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U)))
3421 return -EIO;
3422 if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003423 p = xdr_inline_decode(xdr, 8);
3424 if (unlikely(!p))
3425 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003426 xdr_decode_hyper(p, fileid);
Manoj Naik99baf622006-06-09 09:34:24 -04003427 bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
Trond Myklebust28331a42011-04-27 13:47:52 -04003428 ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID;
Manoj Naik99baf622006-06-09 09:34:24 -04003429 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003430 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
Trond Myklebust409924e2009-03-11 14:10:27 -04003431 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003432out_overflow:
3433 print_overflow_msg(__func__, xdr);
3434 return -EIO;
Manoj Naik99baf622006-06-09 09:34:24 -04003435}
3436
Linus Torvalds1da177e2005-04-16 15:20:36 -07003437static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3438{
Al Viro8687b632006-10-19 23:28:48 -07003439 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003440 int status = 0;
3441
3442 *res = 0;
3443 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
3444 return -EIO;
3445 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003446 p = xdr_inline_decode(xdr, 8);
3447 if (unlikely(!p))
3448 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003449 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003450 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
3451 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003452 dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003453 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003454out_overflow:
3455 print_overflow_msg(__func__, xdr);
3456 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003457}
3458
3459static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3460{
Al Viro8687b632006-10-19 23:28:48 -07003461 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003462 int status = 0;
3463
3464 *res = 0;
3465 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
3466 return -EIO;
3467 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003468 p = xdr_inline_decode(xdr, 8);
3469 if (unlikely(!p))
3470 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003471 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003472 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
3473 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003474 dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003475 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003476out_overflow:
3477 print_overflow_msg(__func__, xdr);
3478 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003479}
3480
3481static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3482{
Al Viro8687b632006-10-19 23:28:48 -07003483 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003484 int status = 0;
3485
3486 *res = 0;
3487 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
3488 return -EIO;
3489 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003490 p = xdr_inline_decode(xdr, 8);
3491 if (unlikely(!p))
3492 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003493 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003494 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
3495 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003496 dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003497 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003498out_overflow:
3499 print_overflow_msg(__func__, xdr);
3500 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003501}
3502
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003503static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
3504{
Chuck Lever464ad6b2007-10-26 13:32:08 -04003505 u32 n;
Al Viro8687b632006-10-19 23:28:48 -07003506 __be32 *p;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003507 int status = 0;
3508
Benny Halevyc0eae662009-08-14 17:20:14 +03003509 p = xdr_inline_decode(xdr, 4);
3510 if (unlikely(!p))
3511 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003512 n = be32_to_cpup(p);
Andy Adamson33a43f22006-06-09 09:34:30 -04003513 if (n == 0)
3514 goto root_path;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003515 dprintk("path ");
3516 path->ncomponents = 0;
3517 while (path->ncomponents < n) {
3518 struct nfs4_string *component = &path->components[path->ncomponents];
3519 status = decode_opaque_inline(xdr, &component->len, &component->data);
3520 if (unlikely(status != 0))
3521 goto out_eio;
3522 if (path->ncomponents != n)
3523 dprintk("/");
3524 dprintk("%s", component->data);
3525 if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS)
3526 path->ncomponents++;
3527 else {
3528 dprintk("cannot parse %d components in path\n", n);
3529 goto out_eio;
3530 }
3531 }
3532out:
3533 dprintk("\n");
3534 return status;
Andy Adamson33a43f22006-06-09 09:34:30 -04003535root_path:
3536/* a root pathname is sent as a zero component4 */
3537 path->ncomponents = 1;
3538 path->components[0].len=0;
3539 path->components[0].data=NULL;
3540 dprintk("path /\n");
3541 goto out;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003542out_eio:
3543 dprintk(" status %d", status);
3544 status = -EIO;
3545 goto out;
Benny Halevyc0eae662009-08-14 17:20:14 +03003546out_overflow:
3547 print_overflow_msg(__func__, xdr);
3548 return -EIO;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003549}
3550
3551static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
Trond Myklebust683b57b2006-06-09 09:34:22 -04003552{
3553 int n;
Al Viro8687b632006-10-19 23:28:48 -07003554 __be32 *p;
Trond Myklebust683b57b2006-06-09 09:34:22 -04003555 int status = -EIO;
3556
3557 if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U)))
3558 goto out;
3559 status = 0;
3560 if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS)))
3561 goto out;
Harvey Harrison3110ff82008-05-02 13:42:44 -07003562 dprintk("%s: fsroot ", __func__);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003563 status = decode_pathname(xdr, &res->fs_path);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003564 if (unlikely(status != 0))
3565 goto out;
Benny Halevyc0eae662009-08-14 17:20:14 +03003566 p = xdr_inline_decode(xdr, 4);
3567 if (unlikely(!p))
3568 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003569 n = be32_to_cpup(p);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003570 if (n <= 0)
3571 goto out_eio;
3572 res->nlocations = 0;
3573 while (res->nlocations < n) {
Chuck Lever464ad6b2007-10-26 13:32:08 -04003574 u32 m;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003575 struct nfs4_fs_location *loc = &res->locations[res->nlocations];
Trond Myklebust683b57b2006-06-09 09:34:22 -04003576
Benny Halevyc0eae662009-08-14 17:20:14 +03003577 p = xdr_inline_decode(xdr, 4);
3578 if (unlikely(!p))
3579 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003580 m = be32_to_cpup(p);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003581
3582 loc->nservers = 0;
Harvey Harrison3110ff82008-05-02 13:42:44 -07003583 dprintk("%s: servers ", __func__);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003584 while (loc->nservers < m) {
3585 struct nfs4_string *server = &loc->servers[loc->nservers];
3586 status = decode_opaque_inline(xdr, &server->len, &server->data);
3587 if (unlikely(status != 0))
3588 goto out_eio;
3589 dprintk("%s ", server->data);
3590 if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS)
3591 loc->nservers++;
3592 else {
Chuck Lever464ad6b2007-10-26 13:32:08 -04003593 unsigned int i;
3594 dprintk("%s: using first %u of %u servers "
3595 "returned for location %u\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003596 __func__,
Chuck Lever464ad6b2007-10-26 13:32:08 -04003597 NFS4_FS_LOCATION_MAXSERVERS,
3598 m, res->nlocations);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003599 for (i = loc->nservers; i < m; i++) {
Trond Myklebust2e42c3e2007-05-14 17:20:41 -04003600 unsigned int len;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003601 char *data;
3602 status = decode_opaque_inline(xdr, &len, &data);
3603 if (unlikely(status != 0))
3604 goto out_eio;
3605 }
3606 }
3607 }
3608 status = decode_pathname(xdr, &loc->rootpath);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003609 if (unlikely(status != 0))
3610 goto out_eio;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003611 if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES)
Trond Myklebust683b57b2006-06-09 09:34:22 -04003612 res->nlocations++;
3613 }
Trond Myklebust409924e2009-03-11 14:10:27 -04003614 if (res->nlocations != 0)
3615 status = NFS_ATTR_FATTR_V4_REFERRAL;
Trond Myklebust683b57b2006-06-09 09:34:22 -04003616out:
Harvey Harrison3110ff82008-05-02 13:42:44 -07003617 dprintk("%s: fs_locations done, error = %d\n", __func__, status);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003618 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003619out_overflow:
3620 print_overflow_msg(__func__, xdr);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003621out_eio:
3622 status = -EIO;
3623 goto out;
3624}
3625
Linus Torvalds1da177e2005-04-16 15:20:36 -07003626static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3627{
Al Viro8687b632006-10-19 23:28:48 -07003628 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003629 int status = 0;
3630
3631 *res = 0;
3632 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
3633 return -EIO;
3634 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003635 p = xdr_inline_decode(xdr, 8);
3636 if (unlikely(!p))
3637 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003638 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003639 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
3640 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003641 dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003642 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003643out_overflow:
3644 print_overflow_msg(__func__, xdr);
3645 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003646}
3647
3648static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
3649{
Al Viro8687b632006-10-19 23:28:48 -07003650 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003651 int status = 0;
3652
3653 *maxlink = 1;
3654 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
3655 return -EIO;
3656 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003657 p = xdr_inline_decode(xdr, 4);
3658 if (unlikely(!p))
3659 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003660 *maxlink = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003661 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
3662 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003663 dprintk("%s: maxlink=%u\n", __func__, *maxlink);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003664 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003665out_overflow:
3666 print_overflow_msg(__func__, xdr);
3667 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003668}
3669
3670static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
3671{
Al Viro8687b632006-10-19 23:28:48 -07003672 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003673 int status = 0;
3674
3675 *maxname = 1024;
3676 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
3677 return -EIO;
3678 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003679 p = xdr_inline_decode(xdr, 4);
3680 if (unlikely(!p))
3681 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003682 *maxname = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003683 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
3684 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003685 dprintk("%s: maxname=%u\n", __func__, *maxname);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003686 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003687out_overflow:
3688 print_overflow_msg(__func__, xdr);
3689 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003690}
3691
3692static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3693{
Al Viro8687b632006-10-19 23:28:48 -07003694 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003695 int status = 0;
3696
3697 *res = 1024;
3698 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
3699 return -EIO;
3700 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
3701 uint64_t maxread;
Benny Halevyc0eae662009-08-14 17:20:14 +03003702 p = xdr_inline_decode(xdr, 8);
3703 if (unlikely(!p))
3704 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003705 xdr_decode_hyper(p, &maxread);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003706 if (maxread > 0x7FFFFFFF)
3707 maxread = 0x7FFFFFFF;
3708 *res = (uint32_t)maxread;
3709 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
3710 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003711 dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003712 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003713out_overflow:
3714 print_overflow_msg(__func__, xdr);
3715 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003716}
3717
3718static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3719{
Al Viro8687b632006-10-19 23:28:48 -07003720 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003721 int status = 0;
3722
3723 *res = 1024;
3724 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
3725 return -EIO;
3726 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
3727 uint64_t maxwrite;
Benny Halevyc0eae662009-08-14 17:20:14 +03003728 p = xdr_inline_decode(xdr, 8);
3729 if (unlikely(!p))
3730 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003731 xdr_decode_hyper(p, &maxwrite);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003732 if (maxwrite > 0x7FFFFFFF)
3733 maxwrite = 0x7FFFFFFF;
3734 *res = (uint32_t)maxwrite;
3735 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
3736 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003737 dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003738 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003739out_overflow:
3740 print_overflow_msg(__func__, xdr);
3741 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003742}
3743
Trond Myklebustbca79472009-03-11 14:10:26 -04003744static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003745{
Trond Myklebustbca79472009-03-11 14:10:26 -04003746 uint32_t tmp;
Al Viro8687b632006-10-19 23:28:48 -07003747 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003748 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003749
3750 *mode = 0;
3751 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
3752 return -EIO;
3753 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003754 p = xdr_inline_decode(xdr, 4);
3755 if (unlikely(!p))
3756 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003757 tmp = be32_to_cpup(p);
Trond Myklebustbca79472009-03-11 14:10:26 -04003758 *mode = tmp & ~S_IFMT;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003759 bitmap[1] &= ~FATTR4_WORD1_MODE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003760 ret = NFS_ATTR_FATTR_MODE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003761 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003762 dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode);
Trond Myklebust409924e2009-03-11 14:10:27 -04003763 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003764out_overflow:
3765 print_overflow_msg(__func__, xdr);
3766 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003767}
3768
3769static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
3770{
Al Viro8687b632006-10-19 23:28:48 -07003771 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003772 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003773
3774 *nlink = 1;
3775 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
3776 return -EIO;
3777 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003778 p = xdr_inline_decode(xdr, 4);
3779 if (unlikely(!p))
3780 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003781 *nlink = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003782 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
Trond Myklebust409924e2009-03-11 14:10:27 -04003783 ret = NFS_ATTR_FATTR_NLINK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003784 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003785 dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink);
Trond Myklebust409924e2009-03-11 14:10:27 -04003786 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003787out_overflow:
3788 print_overflow_msg(__func__, xdr);
3789 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003790}
3791
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003792static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
Trond Myklebuste4fd72a2011-02-22 15:44:31 -08003793 const struct nfs_server *server, uint32_t *uid, int may_sleep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003794{
Al Viro8687b632006-10-19 23:28:48 -07003795 uint32_t len;
3796 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003797 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003798
3799 *uid = -2;
3800 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
3801 return -EIO;
3802 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003803 p = xdr_inline_decode(xdr, 4);
3804 if (unlikely(!p))
3805 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003806 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003807 p = xdr_inline_decode(xdr, len);
3808 if (unlikely(!p))
3809 goto out_overflow;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003810 if (!may_sleep) {
3811 /* do nothing */
3812 } else if (len < XDR_MAX_NETOBJ) {
Trond Myklebuste4fd72a2011-02-22 15:44:31 -08003813 if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0)
Trond Myklebust409924e2009-03-11 14:10:27 -04003814 ret = NFS_ATTR_FATTR_OWNER;
3815 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07003816 dprintk("%s: nfs_map_name_to_uid failed!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003817 __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003818 } else
Chuck Leverfe82a182007-09-11 18:01:10 -04003819 dprintk("%s: name too long (%u)!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003820 __func__, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003821 bitmap[1] &= ~FATTR4_WORD1_OWNER;
3822 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003823 dprintk("%s: uid=%d\n", __func__, (int)*uid);
Trond Myklebust409924e2009-03-11 14:10:27 -04003824 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003825out_overflow:
3826 print_overflow_msg(__func__, xdr);
3827 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003828}
3829
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003830static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
Trond Myklebuste4fd72a2011-02-22 15:44:31 -08003831 const struct nfs_server *server, uint32_t *gid, int may_sleep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003832{
Al Viro8687b632006-10-19 23:28:48 -07003833 uint32_t len;
3834 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003835 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003836
3837 *gid = -2;
3838 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
3839 return -EIO;
3840 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003841 p = xdr_inline_decode(xdr, 4);
3842 if (unlikely(!p))
3843 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003844 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003845 p = xdr_inline_decode(xdr, len);
3846 if (unlikely(!p))
3847 goto out_overflow;
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003848 if (!may_sleep) {
3849 /* do nothing */
3850 } else if (len < XDR_MAX_NETOBJ) {
Trond Myklebuste4fd72a2011-02-22 15:44:31 -08003851 if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0)
Trond Myklebust409924e2009-03-11 14:10:27 -04003852 ret = NFS_ATTR_FATTR_GROUP;
3853 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07003854 dprintk("%s: nfs_map_group_to_gid failed!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003855 __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003856 } else
Chuck Leverfe82a182007-09-11 18:01:10 -04003857 dprintk("%s: name too long (%u)!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003858 __func__, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003859 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
3860 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003861 dprintk("%s: gid=%d\n", __func__, (int)*gid);
Trond Myklebust409924e2009-03-11 14:10:27 -04003862 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003863out_overflow:
3864 print_overflow_msg(__func__, xdr);
3865 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003866}
3867
3868static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
3869{
Al Viro8687b632006-10-19 23:28:48 -07003870 uint32_t major = 0, minor = 0;
3871 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003872 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003873
3874 *rdev = MKDEV(0,0);
3875 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
3876 return -EIO;
3877 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
3878 dev_t tmp;
3879
Benny Halevyc0eae662009-08-14 17:20:14 +03003880 p = xdr_inline_decode(xdr, 8);
3881 if (unlikely(!p))
3882 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003883 major = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03003884 minor = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003885 tmp = MKDEV(major, minor);
3886 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
3887 *rdev = tmp;
3888 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
Trond Myklebust409924e2009-03-11 14:10:27 -04003889 ret = NFS_ATTR_FATTR_RDEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003890 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003891 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor);
Trond Myklebust409924e2009-03-11 14:10:27 -04003892 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003893out_overflow:
3894 print_overflow_msg(__func__, xdr);
3895 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003896}
3897
3898static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3899{
Al Viro8687b632006-10-19 23:28:48 -07003900 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003901 int status = 0;
3902
3903 *res = 0;
3904 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
3905 return -EIO;
3906 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003907 p = xdr_inline_decode(xdr, 8);
3908 if (unlikely(!p))
3909 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003910 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003911 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
3912 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003913 dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003914 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003915out_overflow:
3916 print_overflow_msg(__func__, xdr);
3917 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003918}
3919
3920static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3921{
Al Viro8687b632006-10-19 23:28:48 -07003922 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003923 int status = 0;
3924
3925 *res = 0;
3926 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
3927 return -EIO;
3928 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003929 p = xdr_inline_decode(xdr, 8);
3930 if (unlikely(!p))
3931 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003932 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003933 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
3934 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003935 dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003936 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003937out_overflow:
3938 print_overflow_msg(__func__, xdr);
3939 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003940}
3941
3942static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3943{
Al Viro8687b632006-10-19 23:28:48 -07003944 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003945 int status = 0;
3946
3947 *res = 0;
3948 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
3949 return -EIO;
3950 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003951 p = xdr_inline_decode(xdr, 8);
3952 if (unlikely(!p))
3953 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003954 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003955 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
3956 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003957 dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003958 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003959out_overflow:
3960 print_overflow_msg(__func__, xdr);
3961 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003962}
3963
3964static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
3965{
Al Viro8687b632006-10-19 23:28:48 -07003966 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003967 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003968
3969 *used = 0;
3970 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
3971 return -EIO;
3972 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003973 p = xdr_inline_decode(xdr, 8);
3974 if (unlikely(!p))
3975 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003976 xdr_decode_hyper(p, used);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003977 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
Trond Myklebust409924e2009-03-11 14:10:27 -04003978 ret = NFS_ATTR_FATTR_SPACE_USED;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003979 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003980 dprintk("%s: space used=%Lu\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003981 (unsigned long long)*used);
Trond Myklebust409924e2009-03-11 14:10:27 -04003982 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003983out_overflow:
3984 print_overflow_msg(__func__, xdr);
3985 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003986}
3987
3988static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
3989{
Al Viro8687b632006-10-19 23:28:48 -07003990 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003991 uint64_t sec;
3992 uint32_t nsec;
3993
Benny Halevyc0eae662009-08-14 17:20:14 +03003994 p = xdr_inline_decode(xdr, 12);
3995 if (unlikely(!p))
3996 goto out_overflow;
Benny Halevy3ceb4db2009-08-14 17:19:41 +03003997 p = xdr_decode_hyper(p, &sec);
Benny Halevycccddf42009-08-14 17:20:19 +03003998 nsec = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003999 time->tv_sec = (time_t)sec;
4000 time->tv_nsec = (long)nsec;
4001 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004002out_overflow:
4003 print_overflow_msg(__func__, xdr);
4004 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004005}
4006
4007static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4008{
4009 int status = 0;
4010
4011 time->tv_sec = 0;
4012 time->tv_nsec = 0;
4013 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
4014 return -EIO;
4015 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
4016 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04004017 if (status == 0)
4018 status = NFS_ATTR_FATTR_ATIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004019 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
4020 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07004021 dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004022 return status;
4023}
4024
4025static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4026{
4027 int status = 0;
4028
4029 time->tv_sec = 0;
4030 time->tv_nsec = 0;
4031 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
4032 return -EIO;
4033 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
4034 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04004035 if (status == 0)
4036 status = NFS_ATTR_FATTR_CTIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004037 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
4038 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07004039 dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004040 return status;
4041}
4042
Ricardo Labiaga55b6e772010-10-12 16:30:06 -07004043static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap,
4044 struct timespec *time)
4045{
4046 int status = 0;
4047
4048 time->tv_sec = 0;
4049 time->tv_nsec = 0;
4050 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U)))
4051 return -EIO;
4052 if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) {
4053 status = decode_attr_time(xdr, time);
4054 bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA;
4055 }
4056 dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec,
4057 (long)time->tv_nsec);
4058 return status;
4059}
4060
Linus Torvalds1da177e2005-04-16 15:20:36 -07004061static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4062{
4063 int status = 0;
4064
4065 time->tv_sec = 0;
4066 time->tv_nsec = 0;
4067 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
4068 return -EIO;
4069 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
4070 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04004071 if (status == 0)
4072 status = NFS_ATTR_FATTR_MTIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004073 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
4074 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07004075 dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004076 return status;
4077}
4078
Al Viro8687b632006-10-19 23:28:48 -07004079static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004080{
4081 unsigned int attrwords = XDR_QUADLEN(attrlen);
4082 unsigned int nwords = xdr->p - savep;
4083
4084 if (unlikely(attrwords != nwords)) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004085 dprintk("%s: server returned incorrect attribute length: "
4086 "%u %c %u\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07004087 __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07004088 attrwords << 2,
4089 (attrwords < nwords) ? '<' : '>',
4090 nwords << 2);
4091 return -EIO;
4092 }
4093 return 0;
4094}
4095
4096static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4097{
Al Viro8687b632006-10-19 23:28:48 -07004098 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004099
Benny Halevyc0eae662009-08-14 17:20:14 +03004100 p = xdr_inline_decode(xdr, 20);
4101 if (unlikely(!p))
4102 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004103 cinfo->atomic = be32_to_cpup(p++);
Benny Halevy3ceb4db2009-08-14 17:19:41 +03004104 p = xdr_decode_hyper(p, &cinfo->before);
Benny Halevycccddf42009-08-14 17:20:19 +03004105 xdr_decode_hyper(p, &cinfo->after);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004106 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004107out_overflow:
4108 print_overflow_msg(__func__, xdr);
4109 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004110}
4111
4112static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
4113{
Al Viro8687b632006-10-19 23:28:48 -07004114 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004115 uint32_t supp, acc;
4116 int status;
4117
4118 status = decode_op_hdr(xdr, OP_ACCESS);
4119 if (status)
4120 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004121 p = xdr_inline_decode(xdr, 8);
4122 if (unlikely(!p))
4123 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004124 supp = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004125 acc = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004126 access->supported = supp;
4127 access->access = acc;
4128 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004129out_overflow:
4130 print_overflow_msg(__func__, xdr);
4131 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004132}
4133
Benny Halevy07d30432009-08-14 17:19:52 +03004134static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004135{
Al Viro8687b632006-10-19 23:28:48 -07004136 __be32 *p;
Benny Halevy07d30432009-08-14 17:19:52 +03004137
4138 p = xdr_inline_decode(xdr, len);
4139 if (likely(p)) {
4140 memcpy(buf, p, len);
4141 return 0;
4142 }
4143 print_overflow_msg(__func__, xdr);
4144 return -EIO;
4145}
4146
4147static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
4148{
4149 return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004150}
4151
4152static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
4153{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004154 int status;
4155
4156 status = decode_op_hdr(xdr, OP_CLOSE);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004157 if (status != -EIO)
4158 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004159 if (!status)
4160 status = decode_stateid(xdr, &res->stateid);
4161 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004162}
4163
Benny Halevydb942bb2009-08-14 17:19:56 +03004164static int decode_verifier(struct xdr_stream *xdr, void *verifier)
4165{
4166 return decode_opaque_fixed(xdr, verifier, 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004167}
4168
4169static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
4170{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004171 int status;
4172
4173 status = decode_op_hdr(xdr, OP_COMMIT);
Benny Halevydb942bb2009-08-14 17:19:56 +03004174 if (!status)
4175 status = decode_verifier(xdr, res->verf->verifier);
4176 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004177}
4178
4179static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4180{
Al Viro8687b632006-10-19 23:28:48 -07004181 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004182 uint32_t bmlen;
4183 int status;
4184
4185 status = decode_op_hdr(xdr, OP_CREATE);
4186 if (status)
4187 return status;
4188 if ((status = decode_change_info(xdr, cinfo)))
4189 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004190 p = xdr_inline_decode(xdr, 4);
4191 if (unlikely(!p))
4192 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004193 bmlen = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03004194 p = xdr_inline_decode(xdr, bmlen << 2);
4195 if (likely(p))
4196 return 0;
4197out_overflow:
4198 print_overflow_msg(__func__, xdr);
4199 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004200}
4201
4202static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
4203{
Al Viro8687b632006-10-19 23:28:48 -07004204 __be32 *savep;
Fred Isamandae100c2011-07-30 20:52:37 -04004205 uint32_t attrlen, bitmap[3] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07004206 int status;
4207
4208 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4209 goto xdr_error;
4210 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4211 goto xdr_error;
4212 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4213 goto xdr_error;
4214 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
4215 goto xdr_error;
4216 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
4217 goto xdr_error;
4218 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
4219 goto xdr_error;
4220 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
4221 goto xdr_error;
4222 status = verify_attr_len(xdr, savep, attrlen);
4223xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004224 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004225 return status;
4226}
Andy Adamson6c0195a2008-12-23 16:06:15 -05004227
Linus Torvalds1da177e2005-04-16 15:20:36 -07004228static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
4229{
Al Viro8687b632006-10-19 23:28:48 -07004230 __be32 *savep;
Fred Isamandae100c2011-07-30 20:52:37 -04004231 uint32_t attrlen, bitmap[3] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07004232 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004233
Linus Torvalds1da177e2005-04-16 15:20:36 -07004234 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4235 goto xdr_error;
4236 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4237 goto xdr_error;
4238 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4239 goto xdr_error;
4240
4241 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
4242 goto xdr_error;
4243 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
4244 goto xdr_error;
4245 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
4246 goto xdr_error;
4247 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
4248 goto xdr_error;
4249 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
4250 goto xdr_error;
4251 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
4252 goto xdr_error;
4253
4254 status = verify_attr_len(xdr, savep, attrlen);
4255xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004256 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004257 return status;
4258}
4259
4260static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
4261{
Al Viro8687b632006-10-19 23:28:48 -07004262 __be32 *savep;
Fred Isamandae100c2011-07-30 20:52:37 -04004263 uint32_t attrlen, bitmap[3] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07004264 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004265
Linus Torvalds1da177e2005-04-16 15:20:36 -07004266 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4267 goto xdr_error;
4268 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4269 goto xdr_error;
4270 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4271 goto xdr_error;
4272
4273 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
4274 goto xdr_error;
4275 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
4276 goto xdr_error;
4277
4278 status = verify_attr_len(xdr, savep, attrlen);
4279xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004280 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004281 return status;
4282}
4283
Bryan Schumakerae42c702010-10-21 16:33:17 -04004284static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap,
4285 struct nfs_fattr *fattr, struct nfs_fh *fh,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04004286 const struct nfs_server *server, int may_sleep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004287{
Trond Myklebustbca79472009-03-11 14:10:26 -04004288 int status;
4289 umode_t fmode = 0;
Bryan Schumakerae42c702010-10-21 16:33:17 -04004290 uint32_t type;
Trond Myklebustee7b75f2011-06-16 13:15:41 -04004291 int32_t err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004292
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004293 status = decode_attr_type(xdr, bitmap, &type);
4294 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004295 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004296 fattr->mode = 0;
4297 if (status != 0) {
4298 fattr->mode |= nfs_type2fmt[type];
4299 fattr->valid |= status;
4300 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004301
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004302 status = decode_attr_change(xdr, bitmap, &fattr->change_attr);
4303 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004304 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004305 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004306
4307 status = decode_attr_size(xdr, bitmap, &fattr->size);
4308 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004309 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004310 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004311
4312 status = decode_attr_fsid(xdr, bitmap, &fattr->fsid);
4313 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004314 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004315 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004316
Trond Myklebustee7b75f2011-06-16 13:15:41 -04004317 err = 0;
4318 status = decode_attr_error(xdr, bitmap, &err);
Bryan Schumakerae42c702010-10-21 16:33:17 -04004319 if (status < 0)
4320 goto xdr_error;
Trond Myklebustee7b75f2011-06-16 13:15:41 -04004321 if (err == -NFS4ERR_WRONGSEC)
4322 nfs_fixup_secinfo_attributes(fattr, fh);
Bryan Schumakerae42c702010-10-21 16:33:17 -04004323
4324 status = decode_attr_filehandle(xdr, bitmap, fh);
4325 if (status < 0)
4326 goto xdr_error;
4327
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004328 status = decode_attr_fileid(xdr, bitmap, &fattr->fileid);
4329 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004330 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004331 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004332
4333 status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr,
Manoj Naik7aaa0b32006-06-09 09:34:23 -04004334 struct nfs4_fs_locations,
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004335 fattr));
4336 if (status < 0)
Trond Myklebust683b57b2006-06-09 09:34:22 -04004337 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004338 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004339
4340 status = decode_attr_mode(xdr, bitmap, &fmode);
4341 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004342 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004343 if (status != 0) {
4344 fattr->mode |= fmode;
4345 fattr->valid |= status;
4346 }
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004347
4348 status = decode_attr_nlink(xdr, bitmap, &fattr->nlink);
4349 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004350 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004351 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004352
Trond Myklebuste4fd72a2011-02-22 15:44:31 -08004353 status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, may_sleep);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004354 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004355 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004356 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004357
Trond Myklebuste4fd72a2011-02-22 15:44:31 -08004358 status = decode_attr_group(xdr, bitmap, server, &fattr->gid, may_sleep);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004359 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004360 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004361 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004362
4363 status = decode_attr_rdev(xdr, bitmap, &fattr->rdev);
4364 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004365 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004366 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004367
4368 status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used);
4369 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004370 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004371 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004372
4373 status = decode_attr_time_access(xdr, bitmap, &fattr->atime);
4374 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004375 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004376 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004377
4378 status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime);
4379 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004380 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004381 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004382
4383 status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime);
4384 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004385 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004386 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004387
Trond Myklebust28331a42011-04-27 13:47:52 -04004388 status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004389 if (status < 0)
Manoj Naik99baf622006-06-09 09:34:24 -04004390 goto xdr_error;
Trond Myklebust28331a42011-04-27 13:47:52 -04004391 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004392
Bryan Schumakerae42c702010-10-21 16:33:17 -04004393xdr_error:
4394 dprintk("%s: xdr returned %d\n", __func__, -status);
4395 return status;
4396}
4397
4398static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr,
4399 struct nfs_fh *fh, const struct nfs_server *server, int may_sleep)
4400{
4401 __be32 *savep;
4402 uint32_t attrlen,
Fred Isamandae100c2011-07-30 20:52:37 -04004403 bitmap[3] = {0};
Bryan Schumakerae42c702010-10-21 16:33:17 -04004404 int status;
4405
4406 status = decode_op_hdr(xdr, OP_GETATTR);
4407 if (status < 0)
4408 goto xdr_error;
4409
4410 status = decode_attr_bitmap(xdr, bitmap);
4411 if (status < 0)
4412 goto xdr_error;
4413
4414 status = decode_attr_length(xdr, &attrlen, &savep);
4415 if (status < 0)
4416 goto xdr_error;
4417
4418 status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, server, may_sleep);
4419 if (status < 0)
4420 goto xdr_error;
4421
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004422 status = verify_attr_len(xdr, savep, attrlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004423xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004424 dprintk("%s: xdr returned %d\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004425 return status;
4426}
4427
Bryan Schumakerae42c702010-10-21 16:33:17 -04004428static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr,
4429 const struct nfs_server *server, int may_sleep)
4430{
4431 return decode_getfattr_generic(xdr, fattr, NULL, server, may_sleep);
4432}
Linus Torvalds1da177e2005-04-16 15:20:36 -07004433
Andy Adamson504913f2010-10-20 00:17:57 -04004434/*
4435 * Decode potentially multiple layout types. Currently we only support
4436 * one layout driver per file system.
4437 */
4438static int decode_first_pnfs_layout_type(struct xdr_stream *xdr,
4439 uint32_t *layouttype)
4440{
4441 uint32_t *p;
4442 int num;
4443
4444 p = xdr_inline_decode(xdr, 4);
4445 if (unlikely(!p))
4446 goto out_overflow;
4447 num = be32_to_cpup(p);
4448
4449 /* pNFS is not supported by the underlying file system */
4450 if (num == 0) {
4451 *layouttype = 0;
4452 return 0;
4453 }
4454 if (num > 1)
4455 printk(KERN_INFO "%s: Warning: Multiple pNFS layout drivers "
4456 "per filesystem not supported\n", __func__);
4457
4458 /* Decode and set first layout type, move xdr->p past unused types */
4459 p = xdr_inline_decode(xdr, num * 4);
4460 if (unlikely(!p))
4461 goto out_overflow;
4462 *layouttype = be32_to_cpup(p);
4463 return 0;
4464out_overflow:
4465 print_overflow_msg(__func__, xdr);
4466 return -EIO;
4467}
4468
4469/*
4470 * The type of file system exported.
4471 * Note we must ensure that layouttype is set in any non-error case.
4472 */
4473static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap,
4474 uint32_t *layouttype)
4475{
4476 int status = 0;
4477
4478 dprintk("%s: bitmap is %x\n", __func__, bitmap[1]);
4479 if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U)))
4480 return -EIO;
4481 if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) {
4482 status = decode_first_pnfs_layout_type(xdr, layouttype);
4483 bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES;
4484 } else
4485 *layouttype = 0;
4486 return status;
4487}
4488
Fred Isamandae100c2011-07-30 20:52:37 -04004489/*
4490 * The prefered block size for layout directed io
4491 */
4492static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap,
4493 uint32_t *res)
4494{
4495 __be32 *p;
4496
4497 dprintk("%s: bitmap is %x\n", __func__, bitmap[2]);
4498 *res = 0;
4499 if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) {
4500 p = xdr_inline_decode(xdr, 4);
4501 if (unlikely(!p)) {
4502 print_overflow_msg(__func__, xdr);
4503 return -EIO;
4504 }
4505 *res = be32_to_cpup(p);
4506 bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE;
4507 }
4508 return 0;
4509}
4510
Linus Torvalds1da177e2005-04-16 15:20:36 -07004511static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
4512{
Al Viro8687b632006-10-19 23:28:48 -07004513 __be32 *savep;
Fred Isamandae100c2011-07-30 20:52:37 -04004514 uint32_t attrlen, bitmap[3];
Linus Torvalds1da177e2005-04-16 15:20:36 -07004515 int status;
4516
4517 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4518 goto xdr_error;
4519 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4520 goto xdr_error;
4521 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4522 goto xdr_error;
4523
4524 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
4525
4526 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
4527 goto xdr_error;
4528 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
4529 goto xdr_error;
4530 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
4531 goto xdr_error;
4532 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
4533 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
4534 goto xdr_error;
4535 fsinfo->wtpref = fsinfo->wtmax;
Ricardo Labiaga55b6e772010-10-12 16:30:06 -07004536 status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta);
4537 if (status != 0)
4538 goto xdr_error;
Andy Adamson504913f2010-10-20 00:17:57 -04004539 status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype);
4540 if (status != 0)
4541 goto xdr_error;
Fred Isamandae100c2011-07-30 20:52:37 -04004542 status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize);
4543 if (status)
4544 goto xdr_error;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004545
4546 status = verify_attr_len(xdr, savep, attrlen);
4547xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004548 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004549 return status;
4550}
4551
4552static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
4553{
Al Viro8687b632006-10-19 23:28:48 -07004554 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004555 uint32_t len;
4556 int status;
4557
Trond Myklebust99367812007-07-17 21:52:41 -04004558 /* Zero handle first to allow comparisons */
4559 memset(fh, 0, sizeof(*fh));
4560
Linus Torvalds1da177e2005-04-16 15:20:36 -07004561 status = decode_op_hdr(xdr, OP_GETFH);
4562 if (status)
4563 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004564
Benny Halevyc0eae662009-08-14 17:20:14 +03004565 p = xdr_inline_decode(xdr, 4);
4566 if (unlikely(!p))
4567 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004568 len = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004569 if (len > NFS4_FHSIZE)
4570 return -EIO;
4571 fh->size = len;
Benny Halevyc0eae662009-08-14 17:20:14 +03004572 p = xdr_inline_decode(xdr, len);
4573 if (unlikely(!p))
4574 goto out_overflow;
Benny Halevy99398d02009-08-14 17:20:05 +03004575 memcpy(fh->data, p, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004576 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004577out_overflow:
4578 print_overflow_msg(__func__, xdr);
4579 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004580}
4581
4582static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4583{
4584 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004585
Linus Torvalds1da177e2005-04-16 15:20:36 -07004586 status = decode_op_hdr(xdr, OP_LINK);
4587 if (status)
4588 return status;
4589 return decode_change_info(xdr, cinfo);
4590}
4591
4592/*
4593 * We create the owner, so we know a proper owner.id length is 4.
4594 */
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004595static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004596{
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004597 uint64_t offset, length, clientid;
Al Viro8687b632006-10-19 23:28:48 -07004598 __be32 *p;
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004599 uint32_t namelen, type;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004600
Bryan Schumakerbabddc72010-10-20 15:44:29 -04004601 p = xdr_inline_decode(xdr, 32); /* read 32 bytes */
Benny Halevyc0eae662009-08-14 17:20:14 +03004602 if (unlikely(!p))
4603 goto out_overflow;
Bryan Schumakerbabddc72010-10-20 15:44:29 -04004604 p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */
Benny Halevy3ceb4db2009-08-14 17:19:41 +03004605 p = xdr_decode_hyper(p, &length);
Bryan Schumakerbabddc72010-10-20 15:44:29 -04004606 type = be32_to_cpup(p++); /* 4 byte read */
4607 if (fl != NULL) { /* manipulate file lock */
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004608 fl->fl_start = (loff_t)offset;
4609 fl->fl_end = fl->fl_start + (loff_t)length - 1;
4610 if (length == ~(uint64_t)0)
4611 fl->fl_end = OFFSET_MAX;
4612 fl->fl_type = F_WRLCK;
4613 if (type & 1)
4614 fl->fl_type = F_RDLCK;
4615 fl->fl_pid = 0;
4616 }
Bryan Schumakerbabddc72010-10-20 15:44:29 -04004617 p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */
4618 namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */
4619 p = xdr_inline_decode(xdr, namelen); /* variable size field */
Benny Halevyc0eae662009-08-14 17:20:14 +03004620 if (likely(p))
4621 return -NFS4ERR_DENIED;
4622out_overflow:
4623 print_overflow_msg(__func__, xdr);
4624 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004625}
4626
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004627static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004628{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004629 int status;
4630
4631 status = decode_op_hdr(xdr, OP_LOCK);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004632 if (status == -EIO)
4633 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004634 if (status == 0) {
Benny Halevy07d30432009-08-14 17:19:52 +03004635 status = decode_stateid(xdr, &res->stateid);
4636 if (unlikely(status))
4637 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004638 } else if (status == -NFS4ERR_DENIED)
Trond Myklebustc1d51932008-04-07 13:20:54 -04004639 status = decode_lock_denied(xdr, NULL);
4640 if (res->open_seqid != NULL)
4641 nfs_increment_open_seqid(status, res->open_seqid);
4642 nfs_increment_lock_seqid(status, res->lock_seqid);
4643out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07004644 return status;
4645}
4646
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004647static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004648{
4649 int status;
4650 status = decode_op_hdr(xdr, OP_LOCKT);
4651 if (status == -NFS4ERR_DENIED)
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004652 return decode_lock_denied(xdr, res->denied);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004653 return status;
4654}
4655
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004656static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004657{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004658 int status;
4659
4660 status = decode_op_hdr(xdr, OP_LOCKU);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004661 if (status != -EIO)
4662 nfs_increment_lock_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004663 if (status == 0)
4664 status = decode_stateid(xdr, &res->stateid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004665 return status;
4666}
4667
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04004668static int decode_release_lockowner(struct xdr_stream *xdr)
4669{
4670 return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER);
4671}
4672
Linus Torvalds1da177e2005-04-16 15:20:36 -07004673static int decode_lookup(struct xdr_stream *xdr)
4674{
4675 return decode_op_hdr(xdr, OP_LOOKUP);
4676}
4677
4678/* This is too sick! */
4679static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
4680{
Andy Adamson05d564f2008-12-23 16:06:15 -05004681 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004682 uint32_t limit_type, nblocks, blocksize;
4683
Benny Halevyc0eae662009-08-14 17:20:14 +03004684 p = xdr_inline_decode(xdr, 12);
4685 if (unlikely(!p))
4686 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004687 limit_type = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004688 switch (limit_type) {
Andy Adamson05d564f2008-12-23 16:06:15 -05004689 case 1:
Benny Halevycccddf42009-08-14 17:20:19 +03004690 xdr_decode_hyper(p, maxsize);
Andy Adamson05d564f2008-12-23 16:06:15 -05004691 break;
4692 case 2:
Benny Halevy6f723f72009-08-14 17:19:37 +03004693 nblocks = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004694 blocksize = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05004695 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004696 }
4697 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004698out_overflow:
4699 print_overflow_msg(__func__, xdr);
4700 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004701}
4702
4703static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
4704{
Andy Adamson05d564f2008-12-23 16:06:15 -05004705 __be32 *p;
4706 uint32_t delegation_type;
Benny Halevy07d30432009-08-14 17:19:52 +03004707 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004708
Benny Halevyc0eae662009-08-14 17:20:14 +03004709 p = xdr_inline_decode(xdr, 4);
4710 if (unlikely(!p))
4711 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004712 delegation_type = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004713 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
4714 res->delegation_type = 0;
4715 return 0;
4716 }
Benny Halevy07d30432009-08-14 17:19:52 +03004717 status = decode_stateid(xdr, &res->delegation);
4718 if (unlikely(status))
4719 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004720 p = xdr_inline_decode(xdr, 4);
4721 if (unlikely(!p))
4722 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004723 res->do_recall = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05004724
Linus Torvalds1da177e2005-04-16 15:20:36 -07004725 switch (delegation_type) {
Andy Adamson05d564f2008-12-23 16:06:15 -05004726 case NFS4_OPEN_DELEGATE_READ:
4727 res->delegation_type = FMODE_READ;
4728 break;
4729 case NFS4_OPEN_DELEGATE_WRITE:
4730 res->delegation_type = FMODE_WRITE|FMODE_READ;
4731 if (decode_space_limit(xdr, &res->maxsize) < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004732 return -EIO;
4733 }
David Howells7539bba2006-08-22 20:06:09 -04004734 return decode_ace(xdr, NULL, res->server->nfs_client);
Benny Halevyc0eae662009-08-14 17:20:14 +03004735out_overflow:
4736 print_overflow_msg(__func__, xdr);
4737 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004738}
4739
4740static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
4741{
Andy Adamson05d564f2008-12-23 16:06:15 -05004742 __be32 *p;
Jeff Laytonaa53ed52007-06-05 14:49:03 -04004743 uint32_t savewords, bmlen, i;
Andy Adamson05d564f2008-12-23 16:06:15 -05004744 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004745
Andy Adamson05d564f2008-12-23 16:06:15 -05004746 status = decode_op_hdr(xdr, OP_OPEN);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004747 if (status != -EIO)
4748 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004749 if (!status)
4750 status = decode_stateid(xdr, &res->stateid);
4751 if (unlikely(status))
Andy Adamson05d564f2008-12-23 16:06:15 -05004752 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004753
Andy Adamson05d564f2008-12-23 16:06:15 -05004754 decode_change_info(xdr, &res->cinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004755
Benny Halevyc0eae662009-08-14 17:20:14 +03004756 p = xdr_inline_decode(xdr, 8);
4757 if (unlikely(!p))
4758 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004759 res->rflags = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004760 bmlen = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05004761 if (bmlen > 10)
4762 goto xdr_error;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004763
Benny Halevyc0eae662009-08-14 17:20:14 +03004764 p = xdr_inline_decode(xdr, bmlen << 2);
4765 if (unlikely(!p))
4766 goto out_overflow;
Jeff Laytonaa53ed52007-06-05 14:49:03 -04004767 savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE);
4768 for (i = 0; i < savewords; ++i)
Benny Halevy6f723f72009-08-14 17:19:37 +03004769 res->attrset[i] = be32_to_cpup(p++);
Jeff Laytonaa53ed52007-06-05 14:49:03 -04004770 for (; i < NFS4_BITMAP_SIZE; i++)
4771 res->attrset[i] = 0;
4772
Linus Torvalds1da177e2005-04-16 15:20:36 -07004773 return decode_delegation(xdr, res);
4774xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004775 dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004776 return -EIO;
Benny Halevyc0eae662009-08-14 17:20:14 +03004777out_overflow:
4778 print_overflow_msg(__func__, xdr);
4779 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004780}
4781
4782static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
4783{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004784 int status;
4785
Andy Adamson05d564f2008-12-23 16:06:15 -05004786 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004787 if (status != -EIO)
4788 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004789 if (!status)
4790 status = decode_stateid(xdr, &res->stateid);
4791 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004792}
4793
4794static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
4795{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004796 int status;
4797
4798 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
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_putfh(struct xdr_stream *xdr)
4807{
4808 return decode_op_hdr(xdr, OP_PUTFH);
4809}
4810
4811static int decode_putrootfh(struct xdr_stream *xdr)
4812{
4813 return decode_op_hdr(xdr, OP_PUTROOTFH);
4814}
4815
4816static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res)
4817{
4818 struct kvec *iov = req->rq_rcv_buf.head;
Al Viro8687b632006-10-19 23:28:48 -07004819 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004820 uint32_t count, eof, recvd, hdrlen;
4821 int status;
4822
4823 status = decode_op_hdr(xdr, OP_READ);
4824 if (status)
4825 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004826 p = xdr_inline_decode(xdr, 8);
4827 if (unlikely(!p))
4828 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004829 eof = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004830 count = be32_to_cpup(p);
Chuck Lever8111f372010-12-14 14:58:01 +00004831 hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004832 recvd = req->rq_rcv_buf.len - hdrlen;
4833 if (count > recvd) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004834 dprintk("NFS: server cheating in read reply: "
Linus Torvalds1da177e2005-04-16 15:20:36 -07004835 "count %u > recvd %u\n", count, recvd);
4836 count = recvd;
4837 eof = 0;
4838 }
4839 xdr_read_pages(xdr, count);
4840 res->eof = eof;
4841 res->count = count;
4842 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004843out_overflow:
4844 print_overflow_msg(__func__, xdr);
4845 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004846}
4847
4848static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
4849{
4850 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004851 struct kvec *iov = rcvbuf->head;
Chuck Leverbcecff72007-10-26 13:32:03 -04004852 size_t hdrlen;
4853 u32 recvd, pglen = rcvbuf->page_len;
Chuck Leverbcecff72007-10-26 13:32:03 -04004854 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004855
4856 status = decode_op_hdr(xdr, OP_READDIR);
Benny Halevydb942bb2009-08-14 17:19:56 +03004857 if (!status)
4858 status = decode_verifier(xdr, readdir->verifier.data);
4859 if (unlikely(status))
Linus Torvalds1da177e2005-04-16 15:20:36 -07004860 return status;
Fred Isaman44109242008-04-02 15:21:15 +03004861 dprintk("%s: verifier = %08x:%08x\n",
4862 __func__,
Trond Myklebusteadf4592005-06-22 17:16:39 +00004863 ((u32 *)readdir->verifier.data)[0],
4864 ((u32 *)readdir->verifier.data)[1]);
4865
Linus Torvalds1da177e2005-04-16 15:20:36 -07004866
Benny Halevydb942bb2009-08-14 17:19:56 +03004867 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004868 recvd = rcvbuf->len - hdrlen;
4869 if (pglen > recvd)
4870 pglen = recvd;
4871 xdr_read_pages(xdr, pglen);
4872
Jeff Layton7bda2cd2008-02-22 14:50:01 -05004873
Trond Myklebustac396122010-11-15 20:26:22 -05004874 return pglen;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004875}
4876
4877static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
4878{
4879 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
4880 struct kvec *iov = rcvbuf->head;
Chuck Leverbcecff72007-10-26 13:32:03 -04004881 size_t hdrlen;
4882 u32 len, recvd;
Al Viro8687b632006-10-19 23:28:48 -07004883 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004884 int status;
4885
4886 status = decode_op_hdr(xdr, OP_READLINK);
4887 if (status)
4888 return status;
4889
4890 /* Convert length of symlink */
Benny Halevyc0eae662009-08-14 17:20:14 +03004891 p = xdr_inline_decode(xdr, 4);
4892 if (unlikely(!p))
4893 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004894 len = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004895 if (len >= rcvbuf->page_len || len <= 0) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004896 dprintk("nfs: server returned giant symlink!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07004897 return -ENAMETOOLONG;
4898 }
4899 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
4900 recvd = req->rq_rcv_buf.len - hdrlen;
4901 if (recvd < len) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004902 dprintk("NFS: server cheating in readlink reply: "
Linus Torvalds1da177e2005-04-16 15:20:36 -07004903 "count %u > recvd %u\n", len, recvd);
4904 return -EIO;
4905 }
4906 xdr_read_pages(xdr, len);
4907 /*
4908 * The XDR encode routine has set things up so that
4909 * the link text will be copied directly into the
4910 * buffer. We just have to do overflow-checking,
4911 * and and null-terminate the text (the VFS expects
4912 * null-termination).
4913 */
Chuck Leverb4687da2010-09-21 16:55:48 -04004914 xdr_terminate_string(rcvbuf, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004915 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004916out_overflow:
4917 print_overflow_msg(__func__, xdr);
4918 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004919}
4920
4921static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4922{
4923 int status;
4924
4925 status = decode_op_hdr(xdr, OP_REMOVE);
4926 if (status)
4927 goto out;
4928 status = decode_change_info(xdr, cinfo);
4929out:
4930 return status;
4931}
4932
4933static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
4934 struct nfs4_change_info *new_cinfo)
4935{
4936 int status;
4937
4938 status = decode_op_hdr(xdr, OP_RENAME);
4939 if (status)
4940 goto out;
4941 if ((status = decode_change_info(xdr, old_cinfo)))
4942 goto out;
4943 status = decode_change_info(xdr, new_cinfo);
4944out:
4945 return status;
4946}
4947
4948static int decode_renew(struct xdr_stream *xdr)
4949{
4950 return decode_op_hdr(xdr, OP_RENEW);
4951}
4952
Trond Myklebust56ae19f2005-10-27 22:12:40 -04004953static int
4954decode_restorefh(struct xdr_stream *xdr)
4955{
4956 return decode_op_hdr(xdr, OP_RESTOREFH);
4957}
4958
J. Bruce Fields029d1052005-06-22 17:16:22 +00004959static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
4960 size_t *acl_len)
4961{
Al Viro8687b632006-10-19 23:28:48 -07004962 __be32 *savep;
J. Bruce Fields029d1052005-06-22 17:16:22 +00004963 uint32_t attrlen,
Fred Isamandae100c2011-07-30 20:52:37 -04004964 bitmap[3] = {0};
J. Bruce Fields029d1052005-06-22 17:16:22 +00004965 struct kvec *iov = req->rq_rcv_buf.head;
4966 int status;
4967
4968 *acl_len = 0;
4969 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4970 goto out;
4971 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4972 goto out;
4973 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4974 goto out;
4975
4976 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
4977 return -EIO;
4978 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
Chuck Leverbcecff72007-10-26 13:32:03 -04004979 size_t hdrlen;
4980 u32 recvd;
J. Bruce Fields029d1052005-06-22 17:16:22 +00004981
4982 /* We ignore &savep and don't do consistency checks on
4983 * the attr length. Let userspace figure it out.... */
4984 hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base;
4985 recvd = req->rq_rcv_buf.len - hdrlen;
4986 if (attrlen > recvd) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004987 dprintk("NFS: server cheating in getattr"
J. Bruce Fields029d1052005-06-22 17:16:22 +00004988 " acl reply: attrlen %u > recvd %u\n",
4989 attrlen, recvd);
4990 return -EINVAL;
4991 }
J. Bruce Fieldsc04871e2006-05-30 16:28:58 -04004992 xdr_read_pages(xdr, attrlen);
J. Bruce Fields029d1052005-06-22 17:16:22 +00004993 *acl_len = attrlen;
J. Bruce Fields8c233cf2005-10-13 16:54:27 -04004994 } else
4995 status = -EOPNOTSUPP;
J. Bruce Fields029d1052005-06-22 17:16:22 +00004996
4997out:
4998 return status;
4999}
5000
Linus Torvalds1da177e2005-04-16 15:20:36 -07005001static int
5002decode_savefh(struct xdr_stream *xdr)
5003{
5004 return decode_op_hdr(xdr, OP_SAVEFH);
5005}
5006
Benny Halevy9e9ecc02009-04-01 09:22:00 -04005007static int decode_setattr(struct xdr_stream *xdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005008{
Al Viro8687b632006-10-19 23:28:48 -07005009 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005010 uint32_t bmlen;
5011 int status;
5012
Linus Torvalds1da177e2005-04-16 15:20:36 -07005013 status = decode_op_hdr(xdr, OP_SETATTR);
5014 if (status)
5015 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03005016 p = xdr_inline_decode(xdr, 4);
5017 if (unlikely(!p))
5018 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03005019 bmlen = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03005020 p = xdr_inline_decode(xdr, bmlen << 2);
5021 if (likely(p))
5022 return 0;
5023out_overflow:
5024 print_overflow_msg(__func__, xdr);
5025 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005026}
5027
Trond Myklebustbb8b27e2010-04-16 16:43:06 -04005028static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005029{
Al Viro8687b632006-10-19 23:28:48 -07005030 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005031 uint32_t opnum;
5032 int32_t nfserr;
5033
Benny Halevyc0eae662009-08-14 17:20:14 +03005034 p = xdr_inline_decode(xdr, 8);
5035 if (unlikely(!p))
5036 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03005037 opnum = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005038 if (opnum != OP_SETCLIENTID) {
Chuck Leverfe82a182007-09-11 18:01:10 -04005039 dprintk("nfs: decode_setclientid: Server returned operation"
Andy Adamson6c0195a2008-12-23 16:06:15 -05005040 " %d\n", opnum);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005041 return -EIO;
5042 }
Benny Halevycccddf42009-08-14 17:20:19 +03005043 nfserr = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005044 if (nfserr == NFS_OK) {
Benny Halevyc0eae662009-08-14 17:20:14 +03005045 p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE);
5046 if (unlikely(!p))
5047 goto out_overflow;
Trond Myklebustbb8b27e2010-04-16 16:43:06 -04005048 p = xdr_decode_hyper(p, &res->clientid);
5049 memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005050 } else if (nfserr == NFSERR_CLID_INUSE) {
5051 uint32_t len;
5052
5053 /* skip netid string */
Benny Halevyc0eae662009-08-14 17:20:14 +03005054 p = xdr_inline_decode(xdr, 4);
5055 if (unlikely(!p))
5056 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03005057 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03005058 p = xdr_inline_decode(xdr, len);
5059 if (unlikely(!p))
5060 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005061
5062 /* skip uaddr string */
Benny Halevyc0eae662009-08-14 17:20:14 +03005063 p = xdr_inline_decode(xdr, 4);
5064 if (unlikely(!p))
5065 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03005066 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03005067 p = xdr_inline_decode(xdr, len);
5068 if (unlikely(!p))
5069 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005070 return -NFSERR_CLID_INUSE;
5071 } else
Benny Halevy856dff32008-03-31 17:39:06 +03005072 return nfs4_stat_to_errno(nfserr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005073
5074 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005075out_overflow:
5076 print_overflow_msg(__func__, xdr);
5077 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005078}
5079
5080static int decode_setclientid_confirm(struct xdr_stream *xdr)
5081{
5082 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
5083}
5084
5085static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
5086{
Al Viro8687b632006-10-19 23:28:48 -07005087 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005088 int status;
5089
5090 status = decode_op_hdr(xdr, OP_WRITE);
5091 if (status)
5092 return status;
5093
Benny Halevyc0eae662009-08-14 17:20:14 +03005094 p = xdr_inline_decode(xdr, 16);
5095 if (unlikely(!p))
5096 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03005097 res->count = be32_to_cpup(p++);
5098 res->verf->committed = be32_to_cpup(p++);
Benny Halevy99398d02009-08-14 17:20:05 +03005099 memcpy(res->verf->verifier, p, 8);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005100 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005101out_overflow:
5102 print_overflow_msg(__func__, xdr);
5103 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005104}
5105
5106static int decode_delegreturn(struct xdr_stream *xdr)
5107{
5108 return decode_op_hdr(xdr, OP_DELEGRETURN);
5109}
5110
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005111static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor)
5112{
5113 __be32 *p;
5114
5115 p = xdr_inline_decode(xdr, 4);
5116 if (unlikely(!p))
5117 goto out_overflow;
5118 flavor->gss.sec_oid4.len = be32_to_cpup(p);
5119 if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN)
5120 goto out_err;
5121
5122 p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len);
5123 if (unlikely(!p))
5124 goto out_overflow;
5125 memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len);
5126
5127 p = xdr_inline_decode(xdr, 8);
5128 if (unlikely(!p))
5129 goto out_overflow;
5130 flavor->gss.qop4 = be32_to_cpup(p++);
5131 flavor->gss.service = be32_to_cpup(p);
5132
5133 return 0;
5134
5135out_overflow:
5136 print_overflow_msg(__func__, xdr);
5137 return -EIO;
5138out_err:
5139 return -EINVAL;
5140}
5141
5142static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
5143{
5144 struct nfs4_secinfo_flavor *sec_flavor;
5145 int status;
5146 __be32 *p;
Bryan Schumakerc3dfc282011-04-13 14:31:31 -04005147 int i, num_flavors;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005148
5149 status = decode_op_hdr(xdr, OP_SECINFO);
Bryan Schumaker613e9012011-04-27 15:28:44 -04005150 if (status)
5151 goto out;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005152 p = xdr_inline_decode(xdr, 4);
5153 if (unlikely(!p))
5154 goto out_overflow;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005155
Bryan Schumakerc3dfc282011-04-13 14:31:31 -04005156 res->flavors->num_flavors = 0;
5157 num_flavors = be32_to_cpup(p);
5158
5159 for (i = 0; i < num_flavors; i++) {
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005160 sec_flavor = &res->flavors->flavors[i];
Bryan Schumakerc3dfc282011-04-13 14:31:31 -04005161 if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE)
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005162 break;
5163
5164 p = xdr_inline_decode(xdr, 4);
5165 if (unlikely(!p))
5166 goto out_overflow;
5167 sec_flavor->flavor = be32_to_cpup(p);
5168
5169 if (sec_flavor->flavor == RPC_AUTH_GSS) {
Bryan Schumaker613e9012011-04-27 15:28:44 -04005170 status = decode_secinfo_gss(xdr, sec_flavor);
5171 if (status)
5172 goto out;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005173 }
Bryan Schumakerc3dfc282011-04-13 14:31:31 -04005174 res->flavors->num_flavors++;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005175 }
5176
Bryan Schumaker613e9012011-04-27 15:28:44 -04005177out:
5178 return status;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005179out_overflow:
5180 print_overflow_msg(__func__, xdr);
5181 return -EIO;
5182}
5183
Benny Halevy99fe60d2009-04-01 09:22:29 -04005184#if defined(CONFIG_NFS_V4_1)
5185static int decode_exchange_id(struct xdr_stream *xdr,
5186 struct nfs41_exchange_id_res *res)
5187{
5188 __be32 *p;
5189 uint32_t dummy;
Benny Halevy2460ba52009-08-14 17:20:10 +03005190 char *dummy_str;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005191 int status;
5192 struct nfs_client *clp = res->client;
5193
5194 status = decode_op_hdr(xdr, OP_EXCHANGE_ID);
5195 if (status)
5196 return status;
5197
Benny Halevyc0eae662009-08-14 17:20:14 +03005198 p = xdr_inline_decode(xdr, 8);
5199 if (unlikely(!p))
5200 goto out_overflow;
Andy Adamson114f64b2011-03-09 13:13:45 -05005201 xdr_decode_hyper(p, &clp->cl_clientid);
Benny Halevyc0eae662009-08-14 17:20:14 +03005202 p = xdr_inline_decode(xdr, 12);
5203 if (unlikely(!p))
5204 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03005205 clp->cl_seqid = be32_to_cpup(p++);
5206 clp->cl_exchange_flags = be32_to_cpup(p++);
Benny Halevy99fe60d2009-04-01 09:22:29 -04005207
5208 /* We ask for SP4_NONE */
Benny Halevycccddf42009-08-14 17:20:19 +03005209 dummy = be32_to_cpup(p);
Benny Halevy99fe60d2009-04-01 09:22:29 -04005210 if (dummy != SP4_NONE)
5211 return -EIO;
5212
5213 /* Throw away minor_id */
Benny Halevyc0eae662009-08-14 17:20:14 +03005214 p = xdr_inline_decode(xdr, 8);
5215 if (unlikely(!p))
5216 goto out_overflow;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005217
5218 /* Throw away Major id */
Benny Halevy2460ba52009-08-14 17:20:10 +03005219 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5220 if (unlikely(status))
5221 return status;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005222
Weston Andros Adamson78fe0f42011-05-31 19:05:47 -04005223 /* Save server_scope */
Benny Halevy2460ba52009-08-14 17:20:10 +03005224 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5225 if (unlikely(status))
5226 return status;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005227
Weston Andros Adamson78fe0f42011-05-31 19:05:47 -04005228 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5229 return -EIO;
5230
5231 memcpy(res->server_scope->server_scope, dummy_str, dummy);
5232 res->server_scope->server_scope_sz = dummy;
5233
Benny Halevy99fe60d2009-04-01 09:22:29 -04005234 /* Throw away Implementation id array */
Benny Halevy2460ba52009-08-14 17:20:10 +03005235 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5236 if (unlikely(status))
5237 return status;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005238
5239 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005240out_overflow:
5241 print_overflow_msg(__func__, xdr);
5242 return -EIO;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005243}
Andy Adamsonfc931582009-04-01 09:22:31 -04005244
5245static int decode_chan_attrs(struct xdr_stream *xdr,
5246 struct nfs4_channel_attrs *attrs)
5247{
5248 __be32 *p;
Benny Halevyc9c30dd2011-06-11 17:08:39 -04005249 u32 nr_attrs, val;
Andy Adamsonfc931582009-04-01 09:22:31 -04005250
Benny Halevyc0eae662009-08-14 17:20:14 +03005251 p = xdr_inline_decode(xdr, 28);
5252 if (unlikely(!p))
5253 goto out_overflow;
Benny Halevyc9c30dd2011-06-11 17:08:39 -04005254 val = be32_to_cpup(p++); /* headerpadsz */
5255 if (val)
5256 return -EINVAL; /* no support for header padding yet */
Benny Halevy6f723f72009-08-14 17:19:37 +03005257 attrs->max_rqst_sz = be32_to_cpup(p++);
5258 attrs->max_resp_sz = be32_to_cpup(p++);
5259 attrs->max_resp_sz_cached = be32_to_cpup(p++);
5260 attrs->max_ops = be32_to_cpup(p++);
5261 attrs->max_reqs = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03005262 nr_attrs = be32_to_cpup(p);
Andy Adamsonfc931582009-04-01 09:22:31 -04005263 if (unlikely(nr_attrs > 1)) {
5264 printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n",
5265 __func__, nr_attrs);
5266 return -EINVAL;
5267 }
Benny Halevyc0eae662009-08-14 17:20:14 +03005268 if (nr_attrs == 1) {
5269 p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */
5270 if (unlikely(!p))
5271 goto out_overflow;
5272 }
Andy Adamsonfc931582009-04-01 09:22:31 -04005273 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005274out_overflow:
5275 print_overflow_msg(__func__, xdr);
5276 return -EIO;
Andy Adamsonfc931582009-04-01 09:22:31 -04005277}
5278
Benny Halevye78291e2009-08-14 17:20:00 +03005279static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid)
5280{
5281 return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN);
Andy Adamsonfc931582009-04-01 09:22:31 -04005282}
5283
5284static int decode_create_session(struct xdr_stream *xdr,
5285 struct nfs41_create_session_res *res)
5286{
5287 __be32 *p;
5288 int status;
5289 struct nfs_client *clp = res->client;
5290 struct nfs4_session *session = clp->cl_session;
5291
5292 status = decode_op_hdr(xdr, OP_CREATE_SESSION);
Benny Halevye78291e2009-08-14 17:20:00 +03005293 if (!status)
5294 status = decode_sessionid(xdr, &session->sess_id);
5295 if (unlikely(status))
Andy Adamsonfc931582009-04-01 09:22:31 -04005296 return status;
5297
Andy Adamsonfc931582009-04-01 09:22:31 -04005298 /* seqid, flags */
Benny Halevyc0eae662009-08-14 17:20:14 +03005299 p = xdr_inline_decode(xdr, 8);
5300 if (unlikely(!p))
5301 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03005302 clp->cl_seqid = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03005303 session->flags = be32_to_cpup(p);
Andy Adamsonfc931582009-04-01 09:22:31 -04005304
5305 /* Channel attributes */
5306 status = decode_chan_attrs(xdr, &session->fc_attrs);
5307 if (!status)
5308 status = decode_chan_attrs(xdr, &session->bc_attrs);
5309 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03005310out_overflow:
5311 print_overflow_msg(__func__, xdr);
5312 return -EIO;
Andy Adamsonfc931582009-04-01 09:22:31 -04005313}
Andy Adamson0f3e66c2009-04-01 09:22:34 -04005314
5315static int decode_destroy_session(struct xdr_stream *xdr, void *dummy)
5316{
5317 return decode_op_hdr(xdr, OP_DESTROY_SESSION);
5318}
Ricardo Labiaga180197532009-12-05 16:08:40 -05005319
5320static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy)
5321{
5322 return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE);
5323}
Benny Halevy99fe60d2009-04-01 09:22:29 -04005324#endif /* CONFIG_NFS_V4_1 */
5325
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005326static int decode_sequence(struct xdr_stream *xdr,
5327 struct nfs4_sequence_res *res,
5328 struct rpc_rqst *rqstp)
5329{
5330#if defined(CONFIG_NFS_V4_1)
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005331 struct nfs4_sessionid id;
5332 u32 dummy;
5333 int status;
5334 __be32 *p;
5335
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005336 if (!res->sr_session)
5337 return 0;
5338
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005339 status = decode_op_hdr(xdr, OP_SEQUENCE);
Benny Halevye78291e2009-08-14 17:20:00 +03005340 if (!status)
5341 status = decode_sessionid(xdr, &id);
5342 if (unlikely(status))
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005343 goto out_err;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005344
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005345 /*
5346 * If the server returns different values for sessionID, slotID or
5347 * sequence number, the server is looney tunes.
5348 */
Trond Myklebustfdcb4572010-02-08 09:32:40 -05005349 status = -EREMOTEIO;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005350
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005351 if (memcmp(id.data, res->sr_session->sess_id.data,
5352 NFS4_MAX_SESSIONID_LEN)) {
5353 dprintk("%s Invalid session id\n", __func__);
5354 goto out_err;
5355 }
Benny Halevye78291e2009-08-14 17:20:00 +03005356
Benny Halevyc0eae662009-08-14 17:20:14 +03005357 p = xdr_inline_decode(xdr, 20);
5358 if (unlikely(!p))
5359 goto out_overflow;
Benny Halevye78291e2009-08-14 17:20:00 +03005360
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005361 /* seqid */
Benny Halevy6f723f72009-08-14 17:19:37 +03005362 dummy = be32_to_cpup(p++);
Benny Halevydfb4f3092010-09-24 09:17:01 -04005363 if (dummy != res->sr_slot->seq_nr) {
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005364 dprintk("%s Invalid sequence number\n", __func__);
5365 goto out_err;
5366 }
5367 /* slot id */
Benny Halevy6f723f72009-08-14 17:19:37 +03005368 dummy = be32_to_cpup(p++);
Benny Halevydfb4f3092010-09-24 09:17:01 -04005369 if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) {
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005370 dprintk("%s Invalid slot id\n", __func__);
5371 goto out_err;
5372 }
5373 /* highest slot id - currently not processed */
Benny Halevy6f723f72009-08-14 17:19:37 +03005374 dummy = be32_to_cpup(p++);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005375 /* target highest slot id - currently not processed */
Benny Halevy6f723f72009-08-14 17:19:37 +03005376 dummy = be32_to_cpup(p++);
Alexandros Batsakis0629e372009-12-05 13:46:14 -05005377 /* result flags */
5378 res->sr_status_flags = be32_to_cpup(p);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005379 status = 0;
5380out_err:
5381 res->sr_status = status;
5382 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03005383out_overflow:
5384 print_overflow_msg(__func__, xdr);
5385 status = -EIO;
5386 goto out_err;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005387#else /* CONFIG_NFS_V4_1 */
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005388 return 0;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005389#endif /* CONFIG_NFS_V4_1 */
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005390}
5391
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005392#if defined(CONFIG_NFS_V4_1)
Andy Adamson7f11d8d2011-07-30 20:52:35 -04005393/*
5394 * TODO: Need to handle case when EOF != true;
5395 */
5396static int decode_getdevicelist(struct xdr_stream *xdr,
5397 struct pnfs_devicelist *res)
5398{
5399 __be32 *p;
5400 int status, i;
5401 struct nfs_writeverf verftemp;
5402
5403 status = decode_op_hdr(xdr, OP_GETDEVICELIST);
5404 if (status)
5405 return status;
5406
5407 p = xdr_inline_decode(xdr, 8 + 8 + 4);
5408 if (unlikely(!p))
5409 goto out_overflow;
5410
5411 /* TODO: Skip cookie for now */
5412 p += 2;
5413
5414 /* Read verifier */
5415 p = xdr_decode_opaque_fixed(p, verftemp.verifier, 8);
5416
5417 res->num_devs = be32_to_cpup(p);
5418
5419 dprintk("%s: num_dev %d\n", __func__, res->num_devs);
5420
5421 if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) {
5422 printk(KERN_ERR "%s too many result dev_num %u\n",
5423 __func__, res->num_devs);
5424 return -EIO;
5425 }
5426
5427 p = xdr_inline_decode(xdr,
5428 res->num_devs * NFS4_DEVICEID4_SIZE + 4);
5429 if (unlikely(!p))
5430 goto out_overflow;
5431 for (i = 0; i < res->num_devs; i++)
5432 p = xdr_decode_opaque_fixed(p, res->dev_id[i].data,
5433 NFS4_DEVICEID4_SIZE);
5434 res->eof = be32_to_cpup(p);
5435 return 0;
5436out_overflow:
5437 print_overflow_msg(__func__, xdr);
5438 return -EIO;
5439}
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005440
5441static int decode_getdeviceinfo(struct xdr_stream *xdr,
5442 struct pnfs_device *pdev)
5443{
5444 __be32 *p;
5445 uint32_t len, type;
5446 int status;
5447
5448 status = decode_op_hdr(xdr, OP_GETDEVICEINFO);
5449 if (status) {
5450 if (status == -ETOOSMALL) {
5451 p = xdr_inline_decode(xdr, 4);
5452 if (unlikely(!p))
5453 goto out_overflow;
5454 pdev->mincount = be32_to_cpup(p);
5455 dprintk("%s: Min count too small. mincnt = %u\n",
5456 __func__, pdev->mincount);
5457 }
5458 return status;
5459 }
5460
5461 p = xdr_inline_decode(xdr, 8);
5462 if (unlikely(!p))
5463 goto out_overflow;
5464 type = be32_to_cpup(p++);
5465 if (type != pdev->layout_type) {
5466 dprintk("%s: layout mismatch req: %u pdev: %u\n",
5467 __func__, pdev->layout_type, type);
5468 return -EINVAL;
5469 }
5470 /*
5471 * Get the length of the opaque device_addr4. xdr_read_pages places
5472 * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages)
5473 * and places the remaining xdr data in xdr_buf->tail
5474 */
5475 pdev->mincount = be32_to_cpup(p);
5476 xdr_read_pages(xdr, pdev->mincount); /* include space for the length */
5477
5478 /* Parse notification bitmap, verifying that it is zero. */
5479 p = xdr_inline_decode(xdr, 4);
5480 if (unlikely(!p))
5481 goto out_overflow;
5482 len = be32_to_cpup(p);
5483 if (len) {
Chuck Leveread00592010-12-14 14:58:21 +00005484 uint32_t i;
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005485
5486 p = xdr_inline_decode(xdr, 4 * len);
5487 if (unlikely(!p))
5488 goto out_overflow;
5489 for (i = 0; i < len; i++, p++) {
5490 if (be32_to_cpup(p)) {
5491 dprintk("%s: notifications not supported\n",
5492 __func__);
5493 return -EIO;
5494 }
5495 }
5496 }
5497 return 0;
5498out_overflow:
5499 print_overflow_msg(__func__, xdr);
5500 return -EIO;
5501}
5502
5503static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
5504 struct nfs4_layoutget_res *res)
5505{
5506 __be32 *p;
5507 int status;
5508 u32 layout_count;
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005509 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
5510 struct kvec *iov = rcvbuf->head;
5511 u32 hdrlen, recvd;
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005512
5513 status = decode_op_hdr(xdr, OP_LAYOUTGET);
5514 if (status)
5515 return status;
5516 p = xdr_inline_decode(xdr, 8 + NFS4_STATEID_SIZE);
5517 if (unlikely(!p))
5518 goto out_overflow;
5519 res->return_on_close = be32_to_cpup(p++);
5520 p = xdr_decode_opaque_fixed(p, res->stateid.data, NFS4_STATEID_SIZE);
5521 layout_count = be32_to_cpup(p);
5522 if (!layout_count) {
5523 dprintk("%s: server responded with empty layout array\n",
5524 __func__);
5525 return -EINVAL;
5526 }
5527
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005528 p = xdr_inline_decode(xdr, 28);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005529 if (unlikely(!p))
5530 goto out_overflow;
5531 p = xdr_decode_hyper(p, &res->range.offset);
5532 p = xdr_decode_hyper(p, &res->range.length);
5533 res->range.iomode = be32_to_cpup(p++);
5534 res->type = be32_to_cpup(p++);
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005535 res->layoutp->len = be32_to_cpup(p);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005536
5537 dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n",
5538 __func__,
5539 (unsigned long)res->range.offset,
5540 (unsigned long)res->range.length,
5541 res->range.iomode,
5542 res->type,
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005543 res->layoutp->len);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005544
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005545 hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base;
5546 recvd = req->rq_rcv_buf.len - hdrlen;
5547 if (res->layoutp->len > recvd) {
5548 dprintk("NFS: server cheating in layoutget reply: "
5549 "layout len %u > recvd %u\n",
5550 res->layoutp->len, recvd);
5551 return -EINVAL;
5552 }
5553
5554 xdr_read_pages(xdr, res->layoutp->len);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005555
5556 if (layout_count > 1) {
5557 /* We only handle a length one array at the moment. Any
5558 * further entries are just ignored. Note that this means
5559 * the client may see a response that is less than the
5560 * minimum it requested.
5561 */
5562 dprintk("%s: server responded with %d layouts, dropping tail\n",
5563 __func__, layout_count);
5564 }
5565
5566 return 0;
5567out_overflow:
5568 print_overflow_msg(__func__, xdr);
5569 return -EIO;
5570}
Andy Adamson863a3c62011-03-23 13:27:54 +00005571
Benny Halevycbe82602011-05-22 19:52:37 +03005572static int decode_layoutreturn(struct xdr_stream *xdr,
5573 struct nfs4_layoutreturn_res *res)
5574{
5575 __be32 *p;
5576 int status;
5577
5578 status = decode_op_hdr(xdr, OP_LAYOUTRETURN);
5579 if (status)
5580 return status;
5581 p = xdr_inline_decode(xdr, 4);
5582 if (unlikely(!p))
5583 goto out_overflow;
5584 res->lrs_present = be32_to_cpup(p);
5585 if (res->lrs_present)
5586 status = decode_stateid(xdr, &res->stateid);
5587 return status;
5588out_overflow:
5589 print_overflow_msg(__func__, xdr);
5590 return -EIO;
5591}
5592
Andy Adamson863a3c62011-03-23 13:27:54 +00005593static int decode_layoutcommit(struct xdr_stream *xdr,
5594 struct rpc_rqst *req,
5595 struct nfs4_layoutcommit_res *res)
5596{
5597 __be32 *p;
5598 __u32 sizechanged;
5599 int status;
5600
5601 status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT);
Andy Adamsondb29c082011-07-30 20:52:38 -04005602 res->status = status;
Andy Adamson863a3c62011-03-23 13:27:54 +00005603 if (status)
5604 return status;
5605
5606 p = xdr_inline_decode(xdr, 4);
5607 if (unlikely(!p))
5608 goto out_overflow;
5609 sizechanged = be32_to_cpup(p);
5610
5611 if (sizechanged) {
5612 /* throw away new size */
5613 p = xdr_inline_decode(xdr, 8);
5614 if (unlikely(!p))
5615 goto out_overflow;
5616 }
5617 return 0;
5618out_overflow:
5619 print_overflow_msg(__func__, xdr);
5620 return -EIO;
5621}
Bryan Schumaker7d974792011-06-02 14:59:08 -04005622
5623static int decode_test_stateid(struct xdr_stream *xdr,
5624 struct nfs41_test_stateid_res *res)
5625{
5626 __be32 *p;
5627 int status;
5628 int num_res;
5629
5630 status = decode_op_hdr(xdr, OP_TEST_STATEID);
5631 if (status)
5632 return status;
5633
5634 p = xdr_inline_decode(xdr, 4);
5635 if (unlikely(!p))
5636 goto out_overflow;
5637 num_res = be32_to_cpup(p++);
5638 if (num_res != 1)
5639 goto out;
5640
5641 p = xdr_inline_decode(xdr, 4);
5642 if (unlikely(!p))
5643 goto out_overflow;
5644 res->status = be32_to_cpup(p++);
5645 return res->status;
5646out_overflow:
5647 print_overflow_msg(__func__, xdr);
5648out:
5649 return -EIO;
5650}
Bryan Schumaker9aeda352011-06-02 14:59:09 -04005651
5652static int decode_free_stateid(struct xdr_stream *xdr,
5653 struct nfs41_free_stateid_res *res)
5654{
5655 __be32 *p;
5656 int status;
5657
5658 status = decode_op_hdr(xdr, OP_FREE_STATEID);
5659 if (status)
5660 return status;
5661
5662 p = xdr_inline_decode(xdr, 4);
5663 if (unlikely(!p))
5664 goto out_overflow;
5665 res->status = be32_to_cpup(p++);
5666 return res->status;
5667out_overflow:
5668 print_overflow_msg(__func__, xdr);
5669 return -EIO;
5670}
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005671#endif /* CONFIG_NFS_V4_1 */
5672
Linus Torvalds1da177e2005-04-16 15:20:36 -07005673/*
Benny Halevy49c25592008-12-23 16:06:16 -05005674 * END OF "GENERIC" DECODE ROUTINES.
5675 */
5676
5677/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07005678 * Decode OPEN_DOWNGRADE response
5679 */
Chuck Leverbf269552010-12-14 14:59:29 +00005680static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp,
5681 struct xdr_stream *xdr,
5682 struct nfs_closeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005683{
Andy Adamson05d564f2008-12-23 16:06:15 -05005684 struct compound_hdr hdr;
5685 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005686
Chuck Leverbf269552010-12-14 14:59:29 +00005687 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05005688 if (status)
5689 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005690 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005691 if (status)
5692 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005693 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05005694 if (status)
5695 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005696 status = decode_open_downgrade(xdr, res);
Trond Myklebust516a6af2005-10-27 22:12:41 -04005697 if (status != 0)
5698 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005699 decode_getfattr(xdr, res->fattr, res->server,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005700 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005701out:
Andy Adamson05d564f2008-12-23 16:06:15 -05005702 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005703}
5704
5705/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07005706 * Decode ACCESS response
5707 */
Chuck Leverbf269552010-12-14 14:59:29 +00005708static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5709 struct nfs4_accessres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005710{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005711 struct compound_hdr hdr;
5712 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05005713
Chuck Leverbf269552010-12-14 14:59:29 +00005714 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005715 if (status)
5716 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005717 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005718 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005719 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005720 status = decode_putfh(xdr);
Trond Myklebust76b32992007-08-10 17:45:11 -04005721 if (status != 0)
5722 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005723 status = decode_access(xdr, res);
Trond Myklebust76b32992007-08-10 17:45:11 -04005724 if (status != 0)
5725 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005726 decode_getfattr(xdr, res->fattr, res->server,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005727 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005728out:
5729 return status;
5730}
5731
5732/*
5733 * Decode LOOKUP response
5734 */
Chuck Leverbf269552010-12-14 14:59:29 +00005735static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5736 struct nfs4_lookup_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005737{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005738 struct compound_hdr hdr;
5739 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05005740
Chuck Leverbf269552010-12-14 14:59:29 +00005741 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005742 if (status)
5743 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005744 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005745 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005746 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005747 status = decode_putfh(xdr);
5748 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005749 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005750 status = decode_lookup(xdr);
5751 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005752 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005753 status = decode_getfh(xdr, res->fh);
5754 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005755 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005756 status = decode_getfattr(xdr, res->fattr, res->server
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005757 ,!RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005758out:
5759 return status;
5760}
5761
5762/*
5763 * Decode LOOKUP_ROOT response
5764 */
Chuck Leverbf269552010-12-14 14:59:29 +00005765static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp,
5766 struct xdr_stream *xdr,
5767 struct nfs4_lookup_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005768{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005769 struct compound_hdr hdr;
5770 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05005771
Chuck Leverbf269552010-12-14 14:59:29 +00005772 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005773 if (status)
5774 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005775 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005776 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005777 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005778 status = decode_putrootfh(xdr);
5779 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005780 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005781 status = decode_getfh(xdr, res->fh);
5782 if (status == 0)
5783 status = decode_getfattr(xdr, res->fattr, res->server,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005784 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005785out:
5786 return status;
5787}
5788
5789/*
5790 * Decode REMOVE response
5791 */
Chuck Leverbf269552010-12-14 14:59:29 +00005792static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5793 struct nfs_removeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005794{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005795 struct compound_hdr hdr;
5796 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05005797
Chuck Leverbf269552010-12-14 14:59:29 +00005798 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005799 if (status)
5800 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005801 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005802 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005803 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005804 status = decode_putfh(xdr);
5805 if (status)
Trond Myklebust16e42952005-10-27 22:12:44 -04005806 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005807 status = decode_remove(xdr, &res->cinfo);
5808 if (status)
Trond Myklebust16e42952005-10-27 22:12:44 -04005809 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005810 decode_getfattr(xdr, res->dir_attr, res->server,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005811 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005812out:
5813 return status;
5814}
5815
5816/*
5817 * Decode RENAME response
5818 */
Chuck Leverbf269552010-12-14 14:59:29 +00005819static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5820 struct nfs_renameres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005821{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005822 struct compound_hdr hdr;
5823 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05005824
Chuck Leverbf269552010-12-14 14:59:29 +00005825 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005826 if (status)
5827 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005828 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005829 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005830 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005831 status = decode_putfh(xdr);
5832 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005833 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005834 status = decode_savefh(xdr);
5835 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005836 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005837 status = decode_putfh(xdr);
5838 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005839 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005840 status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo);
5841 if (status)
Trond Myklebust6caf2c82005-10-27 22:12:43 -04005842 goto out;
5843 /* Current FH is target directory */
Chuck Leverbf269552010-12-14 14:59:29 +00005844 if (decode_getfattr(xdr, res->new_fattr, res->server,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005845 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
Trond Myklebust6caf2c82005-10-27 22:12:43 -04005846 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005847 status = decode_restorefh(xdr);
5848 if (status)
Trond Myklebust6caf2c82005-10-27 22:12:43 -04005849 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005850 decode_getfattr(xdr, res->old_fattr, res->server,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005851 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005852out:
5853 return status;
5854}
5855
5856/*
5857 * Decode LINK response
5858 */
Chuck Leverbf269552010-12-14 14:59:29 +00005859static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5860 struct nfs4_link_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005861{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005862 struct compound_hdr hdr;
5863 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05005864
Chuck Leverbf269552010-12-14 14:59:29 +00005865 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005866 if (status)
5867 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005868 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005869 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005870 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005871 status = decode_putfh(xdr);
5872 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005873 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005874 status = decode_savefh(xdr);
5875 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005876 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005877 status = decode_putfh(xdr);
5878 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005879 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005880 status = decode_link(xdr, &res->cinfo);
5881 if (status)
Trond Myklebust91ba2ee2005-10-27 22:12:42 -04005882 goto out;
5883 /*
5884 * Note order: OP_LINK leaves the directory as the current
5885 * filehandle.
5886 */
Chuck Leverbf269552010-12-14 14:59:29 +00005887 if (decode_getfattr(xdr, res->dir_attr, res->server,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005888 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
Trond Myklebust91ba2ee2005-10-27 22:12:42 -04005889 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005890 status = decode_restorefh(xdr);
5891 if (status)
Trond Myklebust91ba2ee2005-10-27 22:12:42 -04005892 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005893 decode_getfattr(xdr, res->fattr, res->server,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005894 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005895out:
5896 return status;
5897}
5898
5899/*
5900 * Decode CREATE response
5901 */
Chuck Leverbf269552010-12-14 14:59:29 +00005902static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5903 struct nfs4_create_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005904{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005905 struct compound_hdr hdr;
5906 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05005907
Chuck Leverbf269552010-12-14 14:59:29 +00005908 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005909 if (status)
5910 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005911 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005912 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005913 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005914 status = decode_putfh(xdr);
5915 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005916 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005917 status = decode_savefh(xdr);
5918 if (status)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04005919 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005920 status = decode_create(xdr, &res->dir_cinfo);
5921 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005922 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005923 status = decode_getfh(xdr, res->fh);
5924 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005925 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005926 if (decode_getfattr(xdr, res->fattr, res->server,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005927 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04005928 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005929 status = decode_restorefh(xdr);
5930 if (status)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04005931 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005932 decode_getfattr(xdr, res->dir_fattr, res->server,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005933 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005934out:
5935 return status;
5936}
5937
5938/*
5939 * Decode SYMLINK response
5940 */
Chuck Leverbf269552010-12-14 14:59:29 +00005941static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5942 struct nfs4_create_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005943{
Chuck Leverbf269552010-12-14 14:59:29 +00005944 return nfs4_xdr_dec_create(rqstp, xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005945}
5946
5947/*
5948 * Decode GETATTR response
5949 */
Chuck Leverbf269552010-12-14 14:59:29 +00005950static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5951 struct nfs4_getattr_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005952{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005953 struct compound_hdr hdr;
5954 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05005955
Chuck Leverbf269552010-12-14 14:59:29 +00005956 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005957 if (status)
5958 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005959 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005960 if (status)
5961 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005962 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005963 if (status)
5964 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005965 status = decode_getfattr(xdr, res->fattr, res->server,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04005966 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005967out:
5968 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005969}
5970
J. Bruce Fields23ec6962005-06-22 17:16:22 +00005971/*
5972 * Encode an SETACL request
5973 */
Chuck Lever9f06c712010-12-14 14:59:18 +00005974static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr,
5975 struct nfs_setaclargs *args)
J. Bruce Fields23ec6962005-06-22 17:16:22 +00005976{
Andy Adamson05d564f2008-12-23 16:06:15 -05005977 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04005978 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Andy Adamson05d564f2008-12-23 16:06:15 -05005979 };
J. Bruce Fields23ec6962005-06-22 17:16:22 +00005980
Chuck Lever9f06c712010-12-14 14:59:18 +00005981 encode_compound_hdr(xdr, req, &hdr);
5982 encode_sequence(xdr, &args->seq_args, &hdr);
5983 encode_putfh(xdr, args->fh, &hdr);
5984 encode_setacl(xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05005985 encode_nops(&hdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00005986}
Andy Adamson05d564f2008-12-23 16:06:15 -05005987
J. Bruce Fields23ec6962005-06-22 17:16:22 +00005988/*
5989 * Decode SETACL response
5990 */
5991static int
Chuck Leverbf269552010-12-14 14:59:29 +00005992nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
Benny Halevy73c403a2009-04-01 09:22:01 -04005993 struct nfs_setaclres *res)
J. Bruce Fields23ec6962005-06-22 17:16:22 +00005994{
J. Bruce Fields23ec6962005-06-22 17:16:22 +00005995 struct compound_hdr hdr;
5996 int status;
5997
Chuck Leverbf269552010-12-14 14:59:29 +00005998 status = decode_compound_hdr(xdr, &hdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00005999 if (status)
6000 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006001 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006002 if (status)
6003 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006004 status = decode_putfh(xdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006005 if (status)
6006 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006007 status = decode_setattr(xdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006008out:
6009 return status;
6010}
Linus Torvalds1da177e2005-04-16 15:20:36 -07006011
6012/*
J. Bruce Fields029d1052005-06-22 17:16:22 +00006013 * Decode GETACL response
6014 */
6015static int
Chuck Leverbf269552010-12-14 14:59:29 +00006016nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
Benny Halevy663c79b2009-04-01 09:21:59 -04006017 struct nfs_getaclres *res)
J. Bruce Fields029d1052005-06-22 17:16:22 +00006018{
J. Bruce Fields029d1052005-06-22 17:16:22 +00006019 struct compound_hdr hdr;
6020 int status;
6021
Chuck Leverbf269552010-12-14 14:59:29 +00006022 status = decode_compound_hdr(xdr, &hdr);
J. Bruce Fields029d1052005-06-22 17:16:22 +00006023 if (status)
6024 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006025 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006026 if (status)
6027 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006028 status = decode_putfh(xdr);
J. Bruce Fields029d1052005-06-22 17:16:22 +00006029 if (status)
6030 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006031 status = decode_getacl(xdr, rqstp, &res->acl_len);
J. Bruce Fields029d1052005-06-22 17:16:22 +00006032
6033out:
6034 return status;
6035}
6036
6037/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07006038 * Decode CLOSE response
6039 */
Chuck Leverbf269552010-12-14 14:59:29 +00006040static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6041 struct nfs_closeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006042{
Andy Adamson05d564f2008-12-23 16:06:15 -05006043 struct compound_hdr hdr;
6044 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006045
Chuck Leverbf269552010-12-14 14:59:29 +00006046 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006047 if (status)
6048 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006049 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006050 if (status)
6051 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006052 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006053 if (status)
6054 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006055 status = decode_close(xdr, res);
Trond Myklebust516a6af2005-10-27 22:12:41 -04006056 if (status != 0)
6057 goto out;
6058 /*
6059 * Note: Server may do delete on close for this file
6060 * in which case the getattr call will fail with
6061 * an ESTALE error. Shouldn't be a problem,
6062 * though, since fattr->valid will remain unset.
6063 */
Chuck Leverbf269552010-12-14 14:59:29 +00006064 decode_getfattr(xdr, res->fattr, res->server,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04006065 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07006066out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006067 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006068}
6069
6070/*
6071 * Decode OPEN response
6072 */
Chuck Leverbf269552010-12-14 14:59:29 +00006073static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6074 struct nfs_openres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006075{
Andy Adamson05d564f2008-12-23 16:06:15 -05006076 struct compound_hdr hdr;
6077 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006078
Chuck Leverbf269552010-12-14 14:59:29 +00006079 status = decode_compound_hdr(xdr, &hdr);
Trond Myklebust56ae19f2005-10-27 22:12:40 -04006080 if (status)
6081 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006082 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006083 if (status)
6084 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006085 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006086 if (status)
6087 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006088 status = decode_savefh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006089 if (status)
6090 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006091 status = decode_open(xdr, res);
Andy Adamson05d564f2008-12-23 16:06:15 -05006092 if (status)
6093 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006094 if (decode_getfh(xdr, &res->fh) != 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006095 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006096 if (decode_getfattr(xdr, res->f_attr, res->server,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04006097 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04006098 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006099 if (decode_restorefh(xdr) != 0)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04006100 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006101 decode_getfattr(xdr, res->dir_attr, res->server,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04006102 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07006103out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006104 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006105}
6106
6107/*
6108 * Decode OPEN_CONFIRM response
6109 */
Chuck Leverbf269552010-12-14 14:59:29 +00006110static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp,
6111 struct xdr_stream *xdr,
6112 struct nfs_open_confirmres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006113{
Andy Adamson05d564f2008-12-23 16:06:15 -05006114 struct compound_hdr hdr;
6115 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006116
Chuck Leverbf269552010-12-14 14:59:29 +00006117 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006118 if (status)
6119 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006120 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006121 if (status)
6122 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006123 status = decode_open_confirm(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006124out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006125 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006126}
6127
6128/*
6129 * Decode OPEN response
6130 */
Chuck Leverbf269552010-12-14 14:59:29 +00006131static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp,
6132 struct xdr_stream *xdr,
6133 struct nfs_openres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006134{
Andy Adamson05d564f2008-12-23 16:06:15 -05006135 struct compound_hdr hdr;
6136 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006137
Chuck Leverbf269552010-12-14 14:59:29 +00006138 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006139 if (status)
6140 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006141 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006142 if (status)
6143 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006144 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006145 if (status)
6146 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006147 status = decode_open(xdr, res);
Andy Adamson05d564f2008-12-23 16:06:15 -05006148 if (status)
6149 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006150 decode_getfattr(xdr, res->f_attr, res->server,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04006151 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07006152out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006153 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006154}
6155
6156/*
6157 * Decode SETATTR response
6158 */
Chuck Leverbf269552010-12-14 14:59:29 +00006159static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp,
6160 struct xdr_stream *xdr,
6161 struct nfs_setattrres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006162{
Andy Adamson05d564f2008-12-23 16:06:15 -05006163 struct compound_hdr hdr;
6164 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006165
Chuck Leverbf269552010-12-14 14:59:29 +00006166 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006167 if (status)
6168 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006169 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006170 if (status)
6171 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006172 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006173 if (status)
6174 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006175 status = decode_setattr(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006176 if (status)
6177 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006178 decode_getfattr(xdr, res->fattr, res->server,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04006179 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07006180out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006181 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006182}
6183
6184/*
6185 * Decode LOCK response
6186 */
Chuck Leverbf269552010-12-14 14:59:29 +00006187static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6188 struct nfs_lock_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006189{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006190 struct compound_hdr hdr;
6191 int status;
6192
Chuck Leverbf269552010-12-14 14:59:29 +00006193 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006194 if (status)
6195 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006196 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006197 if (status)
6198 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006199 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006200 if (status)
6201 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006202 status = decode_lock(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006203out:
6204 return status;
6205}
6206
6207/*
6208 * Decode LOCKT response
6209 */
Chuck Leverbf269552010-12-14 14:59:29 +00006210static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6211 struct nfs_lockt_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006212{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006213 struct compound_hdr hdr;
6214 int status;
6215
Chuck Leverbf269552010-12-14 14:59:29 +00006216 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006217 if (status)
6218 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006219 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006220 if (status)
6221 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006222 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006223 if (status)
6224 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006225 status = decode_lockt(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006226out:
6227 return status;
6228}
6229
6230/*
6231 * Decode LOCKU response
6232 */
Chuck Leverbf269552010-12-14 14:59:29 +00006233static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6234 struct nfs_locku_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006235{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006236 struct compound_hdr hdr;
6237 int status;
6238
Chuck Leverbf269552010-12-14 14:59:29 +00006239 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006240 if (status)
6241 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006242 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006243 if (status)
6244 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006245 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006246 if (status)
6247 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006248 status = decode_locku(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006249out:
6250 return status;
6251}
6252
Chuck Leverbf269552010-12-14 14:59:29 +00006253static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp,
6254 struct xdr_stream *xdr, void *dummy)
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04006255{
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04006256 struct compound_hdr hdr;
6257 int status;
6258
Chuck Leverbf269552010-12-14 14:59:29 +00006259 status = decode_compound_hdr(xdr, &hdr);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04006260 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006261 status = decode_release_lockowner(xdr);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04006262 return status;
6263}
6264
Linus Torvalds1da177e2005-04-16 15:20:36 -07006265/*
6266 * Decode READLINK response
6267 */
Chuck Leverbf269552010-12-14 14:59:29 +00006268static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp,
6269 struct xdr_stream *xdr,
Benny Halevyf50c7002009-04-01 09:21:55 -04006270 struct nfs4_readlink_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006271{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006272 struct compound_hdr hdr;
6273 int status;
6274
Chuck Leverbf269552010-12-14 14:59:29 +00006275 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006276 if (status)
6277 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006278 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006279 if (status)
6280 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006281 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006282 if (status)
6283 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006284 status = decode_readlink(xdr, rqstp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006285out:
6286 return status;
6287}
6288
6289/*
6290 * Decode READDIR response
6291 */
Chuck Leverbf269552010-12-14 14:59:29 +00006292static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6293 struct nfs4_readdir_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006294{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006295 struct compound_hdr hdr;
6296 int status;
6297
Chuck Leverbf269552010-12-14 14:59:29 +00006298 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006299 if (status)
6300 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006301 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006302 if (status)
6303 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006304 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006305 if (status)
6306 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006307 status = decode_readdir(xdr, rqstp, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006308out:
6309 return status;
6310}
6311
6312/*
6313 * Decode Read response
6314 */
Chuck Leverbf269552010-12-14 14:59:29 +00006315static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6316 struct nfs_readres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006317{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006318 struct compound_hdr hdr;
6319 int status;
6320
Chuck Leverbf269552010-12-14 14:59:29 +00006321 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006322 if (status)
6323 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006324 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006325 if (status)
6326 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006327 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006328 if (status)
6329 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006330 status = decode_read(xdr, rqstp, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006331 if (!status)
6332 status = res->count;
6333out:
6334 return status;
6335}
6336
6337/*
6338 * Decode WRITE response
6339 */
Chuck Leverbf269552010-12-14 14:59:29 +00006340static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6341 struct nfs_writeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006342{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006343 struct compound_hdr hdr;
6344 int status;
6345
Chuck Leverbf269552010-12-14 14:59:29 +00006346 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006347 if (status)
6348 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006349 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006350 if (status)
6351 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006352 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006353 if (status)
6354 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006355 status = decode_write(xdr, res);
Trond Myklebust4f9838c2005-10-27 22:12:44 -04006356 if (status)
6357 goto out;
Fred Isaman7ffd1062011-03-03 15:13:46 +00006358 if (res->fattr)
6359 decode_getfattr(xdr, res->fattr, res->server,
6360 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07006361 if (!status)
6362 status = res->count;
6363out:
6364 return status;
6365}
6366
6367/*
6368 * Decode COMMIT response
6369 */
Chuck Leverbf269552010-12-14 14:59:29 +00006370static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6371 struct nfs_writeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006372{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006373 struct compound_hdr hdr;
6374 int status;
6375
Chuck Leverbf269552010-12-14 14:59:29 +00006376 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006377 if (status)
6378 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006379 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006380 if (status)
6381 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006382 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006383 if (status)
6384 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006385 status = decode_commit(xdr, res);
Trond Myklebust4f9838c2005-10-27 22:12:44 -04006386 if (status)
6387 goto out;
Fred Isaman988b6dc2011-03-23 13:27:52 +00006388 if (res->fattr)
6389 decode_getfattr(xdr, res->fattr, res->server,
6390 !RPC_IS_ASYNC(rqstp->rq_task));
Linus Torvalds1da177e2005-04-16 15:20:36 -07006391out:
6392 return status;
6393}
6394
6395/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006396 * Decode FSINFO response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006397 */
Chuck Leverbf269552010-12-14 14:59:29 +00006398static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
Benny Halevy3dda5e42009-04-01 09:21:57 -04006399 struct nfs4_fsinfo_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006400{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006401 struct compound_hdr hdr;
6402 int status;
6403
Chuck Leverbf269552010-12-14 14:59:29 +00006404 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006405 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006406 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006407 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006408 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006409 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006410 status = decode_fsinfo(xdr, res->fsinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006411 return status;
6412}
6413
6414/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006415 * Decode PATHCONF response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006416 */
Chuck Leverbf269552010-12-14 14:59:29 +00006417static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
Benny Halevyd45b2982009-04-01 09:21:58 -04006418 struct nfs4_pathconf_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006419{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006420 struct compound_hdr hdr;
6421 int status;
6422
Chuck Leverbf269552010-12-14 14:59:29 +00006423 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006424 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006425 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006426 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006427 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006428 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006429 status = decode_pathconf(xdr, res->pathconf);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006430 return status;
6431}
6432
6433/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006434 * Decode STATFS response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006435 */
Chuck Leverbf269552010-12-14 14:59:29 +00006436static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
Benny Halevy24ad1482009-04-01 09:21:56 -04006437 struct nfs4_statfs_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006438{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006439 struct compound_hdr hdr;
6440 int status;
6441
Chuck Leverbf269552010-12-14 14:59:29 +00006442 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006443 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006444 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006445 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006446 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006447 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006448 status = decode_statfs(xdr, res->fsstat);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006449 return status;
6450}
6451
6452/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006453 * Decode GETATTR_BITMAP response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006454 */
Chuck Leverbf269552010-12-14 14:59:29 +00006455static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req,
6456 struct xdr_stream *xdr,
6457 struct nfs4_server_caps_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006458{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006459 struct compound_hdr hdr;
6460 int status;
6461
Chuck Leverbf269552010-12-14 14:59:29 +00006462 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006463 if (status)
6464 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006465 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006466 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006467 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006468 status = decode_putfh(xdr);
6469 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006470 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006471 status = decode_server_caps(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006472out:
6473 return status;
6474}
6475
6476/*
6477 * Decode RENEW response
6478 */
Chuck Leverbf269552010-12-14 14:59:29 +00006479static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6480 void *__unused)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006481{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006482 struct compound_hdr hdr;
6483 int status;
6484
Chuck Leverbf269552010-12-14 14:59:29 +00006485 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006486 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006487 status = decode_renew(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006488 return status;
6489}
6490
6491/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006492 * Decode SETCLIENTID response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006493 */
Chuck Leverbf269552010-12-14 14:59:29 +00006494static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req,
6495 struct xdr_stream *xdr,
6496 struct nfs4_setclientid_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006497{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006498 struct compound_hdr hdr;
6499 int status;
6500
Chuck Leverbf269552010-12-14 14:59:29 +00006501 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006502 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006503 status = decode_setclientid(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006504 return status;
6505}
6506
6507/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006508 * Decode SETCLIENTID_CONFIRM response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006509 */
Chuck Leverbf269552010-12-14 14:59:29 +00006510static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req,
6511 struct xdr_stream *xdr,
6512 struct nfs_fsinfo *fsinfo)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006513{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006514 struct compound_hdr hdr;
6515 int status;
6516
Chuck Leverbf269552010-12-14 14:59:29 +00006517 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006518 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006519 status = decode_setclientid_confirm(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006520 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006521 status = decode_putrootfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006522 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006523 status = decode_fsinfo(xdr, fsinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006524 return status;
6525}
6526
6527/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006528 * Decode DELEGRETURN response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006529 */
Chuck Leverbf269552010-12-14 14:59:29 +00006530static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp,
6531 struct xdr_stream *xdr,
6532 struct nfs4_delegreturnres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006533{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006534 struct compound_hdr hdr;
6535 int status;
6536
Chuck Leverbf269552010-12-14 14:59:29 +00006537 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006538 if (status)
6539 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006540 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006541 if (status)
Trond Myklebustfa178f22006-01-03 09:55:38 +01006542 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006543 status = decode_putfh(xdr);
Trond Myklebustfa178f22006-01-03 09:55:38 +01006544 if (status != 0)
6545 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006546 status = decode_delegreturn(xdr);
Jeff Layton556ae3b2010-03-21 12:10:36 -04006547 if (status != 0)
6548 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006549 decode_getfattr(xdr, res->fattr, res->server,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04006550 !RPC_IS_ASYNC(rqstp->rq_task));
Trond Myklebustfa178f22006-01-03 09:55:38 +01006551out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07006552 return status;
6553}
6554
Trond Myklebust683b57b2006-06-09 09:34:22 -04006555/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006556 * Decode FS_LOCATIONS response
Trond Myklebust683b57b2006-06-09 09:34:22 -04006557 */
Chuck Leverbf269552010-12-14 14:59:29 +00006558static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req,
6559 struct xdr_stream *xdr,
Benny Halevy22958462009-04-01 09:22:02 -04006560 struct nfs4_fs_locations_res *res)
Trond Myklebust683b57b2006-06-09 09:34:22 -04006561{
Trond Myklebust683b57b2006-06-09 09:34:22 -04006562 struct compound_hdr hdr;
6563 int status;
6564
Chuck Leverbf269552010-12-14 14:59:29 +00006565 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006566 if (status)
6567 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006568 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006569 if (status)
Trond Myklebust683b57b2006-06-09 09:34:22 -04006570 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006571 status = decode_putfh(xdr);
6572 if (status)
Trond Myklebust683b57b2006-06-09 09:34:22 -04006573 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006574 status = decode_lookup(xdr);
6575 if (status)
Trond Myklebust683b57b2006-06-09 09:34:22 -04006576 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006577 xdr_enter_page(xdr, PAGE_SIZE);
6578 status = decode_getfattr(xdr, &res->fs_locations->fattr,
Trond Myklebust80e52ac2009-08-09 15:06:19 -04006579 res->fs_locations->server,
6580 !RPC_IS_ASYNC(req->rq_task));
Trond Myklebust683b57b2006-06-09 09:34:22 -04006581out:
6582 return status;
6583}
6584
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00006585/*
6586 * Decode SECINFO response
6587 */
6588static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp,
6589 struct xdr_stream *xdr,
6590 struct nfs4_secinfo_res *res)
6591{
6592 struct compound_hdr hdr;
6593 int status;
6594
6595 status = decode_compound_hdr(xdr, &hdr);
6596 if (status)
6597 goto out;
6598 status = decode_sequence(xdr, &res->seq_res, rqstp);
6599 if (status)
6600 goto out;
6601 status = decode_putfh(xdr);
6602 if (status)
6603 goto out;
6604 status = decode_secinfo(xdr, res);
6605 if (status)
6606 goto out;
6607out:
6608 return status;
6609}
6610
Benny Halevy99fe60d2009-04-01 09:22:29 -04006611#if defined(CONFIG_NFS_V4_1)
6612/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006613 * Decode EXCHANGE_ID response
Benny Halevy99fe60d2009-04-01 09:22:29 -04006614 */
Chuck Leverbf269552010-12-14 14:59:29 +00006615static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp,
6616 struct xdr_stream *xdr,
Benny Halevy99fe60d2009-04-01 09:22:29 -04006617 void *res)
6618{
Benny Halevy99fe60d2009-04-01 09:22:29 -04006619 struct compound_hdr hdr;
6620 int status;
6621
Chuck Leverbf269552010-12-14 14:59:29 +00006622 status = decode_compound_hdr(xdr, &hdr);
Benny Halevy99fe60d2009-04-01 09:22:29 -04006623 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006624 status = decode_exchange_id(xdr, res);
Benny Halevy99fe60d2009-04-01 09:22:29 -04006625 return status;
6626}
Andy Adamson2050f0c2009-04-01 09:22:30 -04006627
6628/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006629 * Decode CREATE_SESSION response
Andy Adamsonfc931582009-04-01 09:22:31 -04006630 */
Chuck Leverbf269552010-12-14 14:59:29 +00006631static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp,
6632 struct xdr_stream *xdr,
Andy Adamsonfc931582009-04-01 09:22:31 -04006633 struct nfs41_create_session_res *res)
6634{
Andy Adamsonfc931582009-04-01 09:22:31 -04006635 struct compound_hdr hdr;
6636 int status;
6637
Chuck Leverbf269552010-12-14 14:59:29 +00006638 status = decode_compound_hdr(xdr, &hdr);
Andy Adamsonfc931582009-04-01 09:22:31 -04006639 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006640 status = decode_create_session(xdr, res);
Andy Adamsonfc931582009-04-01 09:22:31 -04006641 return status;
6642}
6643
6644/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006645 * Decode DESTROY_SESSION response
Andy Adamson0f3e66c2009-04-01 09:22:34 -04006646 */
Chuck Leverbf269552010-12-14 14:59:29 +00006647static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp,
6648 struct xdr_stream *xdr,
6649 void *res)
Andy Adamson0f3e66c2009-04-01 09:22:34 -04006650{
Andy Adamson0f3e66c2009-04-01 09:22:34 -04006651 struct compound_hdr hdr;
6652 int status;
6653
Chuck Leverbf269552010-12-14 14:59:29 +00006654 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04006655 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006656 status = decode_destroy_session(xdr, res);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04006657 return status;
6658}
6659
6660/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006661 * Decode SEQUENCE response
Andy Adamsonfc01cea2009-04-01 09:22:36 -04006662 */
Chuck Leverbf269552010-12-14 14:59:29 +00006663static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp,
6664 struct xdr_stream *xdr,
Andy Adamsonfc01cea2009-04-01 09:22:36 -04006665 struct nfs4_sequence_res *res)
6666{
Andy Adamsonfc01cea2009-04-01 09:22:36 -04006667 struct compound_hdr hdr;
6668 int status;
6669
Chuck Leverbf269552010-12-14 14:59:29 +00006670 status = decode_compound_hdr(xdr, &hdr);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04006671 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006672 status = decode_sequence(xdr, res, rqstp);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04006673 return status;
6674}
6675
6676/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006677 * Decode GET_LEASE_TIME response
Andy Adamson2050f0c2009-04-01 09:22:30 -04006678 */
Chuck Leverbf269552010-12-14 14:59:29 +00006679static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp,
6680 struct xdr_stream *xdr,
Andy Adamson2050f0c2009-04-01 09:22:30 -04006681 struct nfs4_get_lease_time_res *res)
6682{
Andy Adamson2050f0c2009-04-01 09:22:30 -04006683 struct compound_hdr hdr;
6684 int status;
6685
Chuck Leverbf269552010-12-14 14:59:29 +00006686 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson2050f0c2009-04-01 09:22:30 -04006687 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006688 status = decode_sequence(xdr, &res->lr_seq_res, rqstp);
Andy Adamson2050f0c2009-04-01 09:22:30 -04006689 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006690 status = decode_putrootfh(xdr);
Andy Adamson2050f0c2009-04-01 09:22:30 -04006691 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006692 status = decode_fsinfo(xdr, res->lr_fsinfo);
Andy Adamson2050f0c2009-04-01 09:22:30 -04006693 return status;
6694}
Ricardo Labiaga180197532009-12-05 16:08:40 -05006695
6696/*
6697 * Decode RECLAIM_COMPLETE response
6698 */
Chuck Leverbf269552010-12-14 14:59:29 +00006699static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp,
6700 struct xdr_stream *xdr,
Ricardo Labiaga180197532009-12-05 16:08:40 -05006701 struct nfs41_reclaim_complete_res *res)
6702{
Ricardo Labiaga180197532009-12-05 16:08:40 -05006703 struct compound_hdr hdr;
6704 int status;
6705
Chuck Leverbf269552010-12-14 14:59:29 +00006706 status = decode_compound_hdr(xdr, &hdr);
Ricardo Labiaga180197532009-12-05 16:08:40 -05006707 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006708 status = decode_sequence(xdr, &res->seq_res, rqstp);
Ricardo Labiaga180197532009-12-05 16:08:40 -05006709 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006710 status = decode_reclaim_complete(xdr, (void *)NULL);
Ricardo Labiaga180197532009-12-05 16:08:40 -05006711 return status;
6712}
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006713
6714/*
Andy Adamson7f11d8d2011-07-30 20:52:35 -04006715 * Decode GETDEVICELIST response
6716 */
6717static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp,
6718 struct xdr_stream *xdr,
6719 struct nfs4_getdevicelist_res *res)
6720{
6721 struct compound_hdr hdr;
6722 int status;
6723
6724 dprintk("encoding getdevicelist!\n");
6725
6726 status = decode_compound_hdr(xdr, &hdr);
6727 if (status != 0)
6728 goto out;
6729 status = decode_sequence(xdr, &res->seq_res, rqstp);
6730 if (status != 0)
6731 goto out;
6732 status = decode_putfh(xdr);
6733 if (status != 0)
6734 goto out;
6735 status = decode_getdevicelist(xdr, res->devlist);
6736out:
6737 return status;
6738}
6739
6740/*
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006741 * Decode GETDEVINFO response
6742 */
Chuck Leverbf269552010-12-14 14:59:29 +00006743static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp,
6744 struct xdr_stream *xdr,
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006745 struct nfs4_getdeviceinfo_res *res)
6746{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006747 struct compound_hdr hdr;
6748 int status;
6749
Chuck Leverbf269552010-12-14 14:59:29 +00006750 status = decode_compound_hdr(xdr, &hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006751 if (status != 0)
6752 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006753 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006754 if (status != 0)
6755 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006756 status = decode_getdeviceinfo(xdr, res->pdev);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006757out:
6758 return status;
6759}
6760
6761/*
6762 * Decode LAYOUTGET response
6763 */
Chuck Leverbf269552010-12-14 14:59:29 +00006764static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp,
6765 struct xdr_stream *xdr,
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006766 struct nfs4_layoutget_res *res)
6767{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006768 struct compound_hdr hdr;
6769 int status;
6770
Chuck Leverbf269552010-12-14 14:59:29 +00006771 status = decode_compound_hdr(xdr, &hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006772 if (status)
6773 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006774 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006775 if (status)
6776 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006777 status = decode_putfh(xdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006778 if (status)
6779 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006780 status = decode_layoutget(xdr, rqstp, res);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006781out:
6782 return status;
6783}
Andy Adamson863a3c62011-03-23 13:27:54 +00006784
6785/*
Benny Halevycbe82602011-05-22 19:52:37 +03006786 * Decode LAYOUTRETURN response
6787 */
6788static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp,
6789 struct xdr_stream *xdr,
6790 struct nfs4_layoutreturn_res *res)
6791{
6792 struct compound_hdr hdr;
6793 int status;
6794
6795 status = decode_compound_hdr(xdr, &hdr);
6796 if (status)
6797 goto out;
6798 status = decode_sequence(xdr, &res->seq_res, rqstp);
6799 if (status)
6800 goto out;
6801 status = decode_putfh(xdr);
6802 if (status)
6803 goto out;
6804 status = decode_layoutreturn(xdr, res);
6805out:
6806 return status;
6807}
6808
6809/*
Andy Adamson863a3c62011-03-23 13:27:54 +00006810 * Decode LAYOUTCOMMIT response
6811 */
6812static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp,
6813 struct xdr_stream *xdr,
6814 struct nfs4_layoutcommit_res *res)
6815{
6816 struct compound_hdr hdr;
6817 int status;
6818
6819 status = decode_compound_hdr(xdr, &hdr);
6820 if (status)
6821 goto out;
6822 status = decode_sequence(xdr, &res->seq_res, rqstp);
6823 if (status)
6824 goto out;
6825 status = decode_putfh(xdr);
6826 if (status)
6827 goto out;
6828 status = decode_layoutcommit(xdr, rqstp, res);
6829 if (status)
6830 goto out;
6831 decode_getfattr(xdr, res->fattr, res->server,
6832 !RPC_IS_ASYNC(rqstp->rq_task));
6833out:
6834 return status;
6835}
Bryan Schumakerfca78d62011-06-02 14:59:07 -04006836
6837/*
6838 * Decode SECINFO_NO_NAME response
6839 */
6840static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp,
6841 struct xdr_stream *xdr,
6842 struct nfs4_secinfo_res *res)
6843{
6844 struct compound_hdr hdr;
6845 int status;
6846
6847 status = decode_compound_hdr(xdr, &hdr);
6848 if (status)
6849 goto out;
6850 status = decode_sequence(xdr, &res->seq_res, rqstp);
6851 if (status)
6852 goto out;
6853 status = decode_putrootfh(xdr);
6854 if (status)
6855 goto out;
6856 status = decode_secinfo(xdr, res);
6857out:
6858 return status;
6859}
Bryan Schumaker7d974792011-06-02 14:59:08 -04006860
6861/*
6862 * Decode TEST_STATEID response
6863 */
6864static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp,
6865 struct xdr_stream *xdr,
6866 struct nfs41_test_stateid_res *res)
6867{
6868 struct compound_hdr hdr;
6869 int status;
6870
6871 status = decode_compound_hdr(xdr, &hdr);
6872 if (status)
6873 goto out;
6874 status = decode_sequence(xdr, &res->seq_res, rqstp);
6875 if (status)
6876 goto out;
6877 status = decode_test_stateid(xdr, res);
6878out:
6879 return status;
6880}
Bryan Schumaker9aeda352011-06-02 14:59:09 -04006881
6882/*
6883 * Decode FREE_STATEID response
6884 */
6885static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp,
6886 struct xdr_stream *xdr,
6887 struct nfs41_free_stateid_res *res)
6888{
6889 struct compound_hdr hdr;
6890 int status;
6891
6892 status = decode_compound_hdr(xdr, &hdr);
6893 if (status)
6894 goto out;
6895 status = decode_sequence(xdr, &res->seq_res, rqstp);
6896 if (status)
6897 goto out;
6898 status = decode_free_stateid(xdr, res);
6899out:
6900 return status;
6901}
Benny Halevy99fe60d2009-04-01 09:22:29 -04006902#endif /* CONFIG_NFS_V4_1 */
6903
Chuck Lever573c4e12010-12-14 14:58:11 +00006904/**
6905 * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in
6906 * the local page cache.
6907 * @xdr: XDR stream where entry resides
6908 * @entry: buffer to fill in with entry data
6909 * @plus: boolean indicating whether this should be a readdirplus entry
6910 *
6911 * Returns zero if successful, otherwise a negative errno value is
6912 * returned.
6913 *
6914 * This function is not invoked during READDIR reply decoding, but
6915 * rather whenever an application invokes the getdents(2) system call
6916 * on a directory already in our cache.
6917 */
6918int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
6919 int plus)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006920{
Fred Isamandae100c2011-07-30 20:52:37 -04006921 uint32_t bitmap[3] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07006922 uint32_t len;
Bryan Schumakerbabddc72010-10-20 15:44:29 -04006923 __be32 *p = xdr_inline_decode(xdr, 4);
6924 if (unlikely(!p))
6925 goto out_overflow;
Chuck Leverc08e76d2011-01-28 12:40:55 -05006926 if (*p == xdr_zero) {
Bryan Schumakerbabddc72010-10-20 15:44:29 -04006927 p = xdr_inline_decode(xdr, 4);
6928 if (unlikely(!p))
6929 goto out_overflow;
Chuck Leverc08e76d2011-01-28 12:40:55 -05006930 if (*p == xdr_zero)
Chuck Lever573c4e12010-12-14 14:58:11 +00006931 return -EAGAIN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006932 entry->eof = 1;
Chuck Lever573c4e12010-12-14 14:58:11 +00006933 return -EBADCOOKIE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006934 }
6935
Bryan Schumakerbabddc72010-10-20 15:44:29 -04006936 p = xdr_inline_decode(xdr, 12);
6937 if (unlikely(!p))
6938 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006939 entry->prev_cookie = entry->cookie;
6940 p = xdr_decode_hyper(p, &entry->cookie);
Chuck Leverc08e76d2011-01-28 12:40:55 -05006941 entry->len = be32_to_cpup(p);
Bryan Schumakerbabddc72010-10-20 15:44:29 -04006942
Trond Myklebust9af8c222010-10-24 11:52:55 -04006943 p = xdr_inline_decode(xdr, entry->len);
Bryan Schumakerbabddc72010-10-20 15:44:29 -04006944 if (unlikely(!p))
6945 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006946 entry->name = (const char *) p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006947
6948 /*
6949 * In case the server doesn't return an inode number,
6950 * we fake one here. (We don't use inode number 0,
6951 * since glibc seems to choke on it...)
6952 */
6953 entry->ino = 1;
Trond Myklebust4f082222010-10-24 13:14:02 -04006954 entry->fattr->valid = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006955
Trond Myklebust9af8c222010-10-24 11:52:55 -04006956 if (decode_attr_bitmap(xdr, bitmap) < 0)
Bryan Schumakerbabddc72010-10-20 15:44:29 -04006957 goto out_overflow;
Trond Myklebust9af8c222010-10-24 11:52:55 -04006958
6959 if (decode_attr_length(xdr, &len, &p) < 0)
6960 goto out_overflow;
6961
Chuck Lever573c4e12010-12-14 14:58:11 +00006962 if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh,
6963 entry->server, 1) < 0)
Trond Myklebust9af8c222010-10-24 11:52:55 -04006964 goto out_overflow;
Trond Myklebust28331a42011-04-27 13:47:52 -04006965 if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID)
6966 entry->ino = entry->fattr->mounted_on_fileid;
6967 else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID)
Trond Myklebust9af8c222010-10-24 11:52:55 -04006968 entry->ino = entry->fattr->fileid;
6969
Trond Myklebust0b26a0b2010-11-20 14:26:44 -05006970 entry->d_type = DT_UNKNOWN;
6971 if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE)
6972 entry->d_type = nfs_umode_to_dtype(entry->fattr->mode);
6973
Chuck Lever573c4e12010-12-14 14:58:11 +00006974 return 0;
Bryan Schumakerbabddc72010-10-20 15:44:29 -04006975
6976out_overflow:
6977 print_overflow_msg(__func__, xdr);
Chuck Lever573c4e12010-12-14 14:58:11 +00006978 return -EAGAIN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006979}
6980
6981/*
6982 * We need to translate between nfs status return values and
6983 * the local errno values which may not be the same.
6984 */
6985static struct {
6986 int stat;
6987 int errno;
6988} nfs_errtbl[] = {
6989 { NFS4_OK, 0 },
Benny Halevy856dff32008-03-31 17:39:06 +03006990 { NFS4ERR_PERM, -EPERM },
6991 { NFS4ERR_NOENT, -ENOENT },
6992 { NFS4ERR_IO, -errno_NFSERR_IO},
6993 { NFS4ERR_NXIO, -ENXIO },
6994 { NFS4ERR_ACCESS, -EACCES },
6995 { NFS4ERR_EXIST, -EEXIST },
6996 { NFS4ERR_XDEV, -EXDEV },
6997 { NFS4ERR_NOTDIR, -ENOTDIR },
6998 { NFS4ERR_ISDIR, -EISDIR },
6999 { NFS4ERR_INVAL, -EINVAL },
7000 { NFS4ERR_FBIG, -EFBIG },
7001 { NFS4ERR_NOSPC, -ENOSPC },
7002 { NFS4ERR_ROFS, -EROFS },
7003 { NFS4ERR_MLINK, -EMLINK },
7004 { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG },
7005 { NFS4ERR_NOTEMPTY, -ENOTEMPTY },
7006 { NFS4ERR_DQUOT, -EDQUOT },
7007 { NFS4ERR_STALE, -ESTALE },
7008 { NFS4ERR_BADHANDLE, -EBADHANDLE },
Benny Halevy856dff32008-03-31 17:39:06 +03007009 { NFS4ERR_BAD_COOKIE, -EBADCOOKIE },
7010 { NFS4ERR_NOTSUPP, -ENOTSUPP },
7011 { NFS4ERR_TOOSMALL, -ETOOSMALL },
Trond Myklebustfdcb4572010-02-08 09:32:40 -05007012 { NFS4ERR_SERVERFAULT, -EREMOTEIO },
Benny Halevy856dff32008-03-31 17:39:06 +03007013 { NFS4ERR_BADTYPE, -EBADTYPE },
7014 { NFS4ERR_LOCKED, -EAGAIN },
Benny Halevy856dff32008-03-31 17:39:06 +03007015 { NFS4ERR_SYMLINK, -ELOOP },
7016 { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP },
7017 { NFS4ERR_DEADLOCK, -EDEADLK },
Benny Halevy856dff32008-03-31 17:39:06 +03007018 { -1, -EIO }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007019};
7020
7021/*
7022 * Convert an NFS error code to a local one.
7023 * This one is used jointly by NFSv2 and NFSv3.
7024 */
7025static int
David Howells0a8ea432006-08-22 20:06:08 -04007026nfs4_stat_to_errno(int stat)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007027{
7028 int i;
7029 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
7030 if (nfs_errtbl[i].stat == stat)
7031 return nfs_errtbl[i].errno;
7032 }
7033 if (stat <= 10000 || stat > 10100) {
7034 /* The server is looney tunes. */
Trond Myklebustfdcb4572010-02-08 09:32:40 -05007035 return -EREMOTEIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007036 }
7037 /* If we cannot translate the error, the recovery routines should
7038 * handle it.
7039 * Note: remaining NFSv4 error codes have values > 10000, so should
7040 * not conflict with native Linux error codes.
7041 */
Benny Halevy856dff32008-03-31 17:39:06 +03007042 return -stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007043}
7044
Linus Torvalds1da177e2005-04-16 15:20:36 -07007045#define PROC(proc, argtype, restype) \
7046[NFSPROC4_CLNT_##proc] = { \
7047 .p_proc = NFSPROC4_COMPOUND, \
Chuck Lever9f06c712010-12-14 14:59:18 +00007048 .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \
Chuck Leverbf269552010-12-14 14:59:29 +00007049 .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \
Chuck Lever2bea90d2007-03-29 16:47:53 -04007050 .p_arglen = NFS4_##argtype##_sz, \
7051 .p_replen = NFS4_##restype##_sz, \
Chuck Levercc0175c2006-03-20 13:44:22 -05007052 .p_statidx = NFSPROC4_CLNT_##proc, \
7053 .p_name = #proc, \
Andy Adamson05d564f2008-12-23 16:06:15 -05007054}
Linus Torvalds1da177e2005-04-16 15:20:36 -07007055
7056struct rpc_procinfo nfs4_procedures[] = {
Chuck Lever7d93bd712010-12-14 14:57:42 +00007057 PROC(READ, enc_read, dec_read),
7058 PROC(WRITE, enc_write, dec_write),
7059 PROC(COMMIT, enc_commit, dec_commit),
7060 PROC(OPEN, enc_open, dec_open),
7061 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
7062 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
7063 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
7064 PROC(CLOSE, enc_close, dec_close),
7065 PROC(SETATTR, enc_setattr, dec_setattr),
7066 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
7067 PROC(RENEW, enc_renew, dec_renew),
7068 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
7069 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
7070 PROC(LOCK, enc_lock, dec_lock),
7071 PROC(LOCKT, enc_lockt, dec_lockt),
7072 PROC(LOCKU, enc_locku, dec_locku),
7073 PROC(ACCESS, enc_access, dec_access),
7074 PROC(GETATTR, enc_getattr, dec_getattr),
7075 PROC(LOOKUP, enc_lookup, dec_lookup),
7076 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
7077 PROC(REMOVE, enc_remove, dec_remove),
7078 PROC(RENAME, enc_rename, dec_rename),
7079 PROC(LINK, enc_link, dec_link),
7080 PROC(SYMLINK, enc_symlink, dec_symlink),
7081 PROC(CREATE, enc_create, dec_create),
7082 PROC(PATHCONF, enc_pathconf, dec_pathconf),
7083 PROC(STATFS, enc_statfs, dec_statfs),
7084 PROC(READLINK, enc_readlink, dec_readlink),
7085 PROC(READDIR, enc_readdir, dec_readdir),
7086 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
7087 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
7088 PROC(GETACL, enc_getacl, dec_getacl),
7089 PROC(SETACL, enc_setacl, dec_setacl),
7090 PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
7091 PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner),
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00007092 PROC(SECINFO, enc_secinfo, dec_secinfo),
Benny Halevy99fe60d2009-04-01 09:22:29 -04007093#if defined(CONFIG_NFS_V4_1)
Chuck Lever7d93bd712010-12-14 14:57:42 +00007094 PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
7095 PROC(CREATE_SESSION, enc_create_session, dec_create_session),
7096 PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session),
7097 PROC(SEQUENCE, enc_sequence, dec_sequence),
7098 PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time),
7099 PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete),
7100 PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo),
7101 PROC(LAYOUTGET, enc_layoutget, dec_layoutget),
Andy Adamson863a3c62011-03-23 13:27:54 +00007102 PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit),
Benny Halevycbe82602011-05-22 19:52:37 +03007103 PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn),
Bryan Schumakerfca78d62011-06-02 14:59:07 -04007104 PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name),
Bryan Schumaker7d974792011-06-02 14:59:08 -04007105 PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid),
Bryan Schumaker9aeda352011-06-02 14:59:09 -04007106 PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid),
Andy Adamson7f11d8d2011-07-30 20:52:35 -04007107 PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist),
Benny Halevy99fe60d2009-04-01 09:22:29 -04007108#endif /* CONFIG_NFS_V4_1 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007109};
7110
7111struct rpc_version nfs_version4 = {
7112 .number = 4,
Tobias Klausere8c96f82006-03-24 03:15:34 -08007113 .nrprocs = ARRAY_SIZE(nfs4_procedures),
Linus Torvalds1da177e2005-04-16 15:20:36 -07007114 .procs = nfs4_procedures
7115};
7116
7117/*
7118 * Local variables:
7119 * c-basic-offset: 8
7120 * End:
7121 */