blob: 939ae606cfa4c96d4d607afd8886f5d45ed85896 [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>
Weston Andros Adamsondb8ac8b2012-02-17 15:20:24 -050047#include <linux/module.h>
48#include <linux/utsname.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070049#include <linux/sunrpc/clnt.h>
Alexandros Batsakis2449ea22009-12-05 13:36:55 -050050#include <linux/sunrpc/msg_prot.h>
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +000051#include <linux/sunrpc/gss_api.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070052#include <linux/nfs.h>
53#include <linux/nfs4.h>
54#include <linux/nfs_fs.h>
55#include <linux/nfs_idmap.h>
Chuck Leverf0920752012-05-21 22:45:41 -040056
Trond Myklebust4ce79712005-06-22 17:16:21 +000057#include "nfs4_fs.h"
Alexandros Batsakis4882ef72009-12-05 13:30:21 -050058#include "internal.h"
Trond Myklebust76e697b2012-11-26 14:20:49 -050059#include "nfs4session.h"
Andy Adamsonb1f69b72010-10-20 00:18:03 -040060#include "pnfs.h"
Chuck Leverf0920752012-05-21 22:45:41 -040061#include "netns.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070062
63#define NFSDBG_FACILITY NFSDBG_XDR
64
65/* Mapping from NFS error code to "errno" error code. */
66#define errno_NFSERR_IO EIO
67
David Howells0a8ea432006-08-22 20:06:08 -040068static int nfs4_stat_to_errno(int);
Linus Torvalds1da177e2005-04-16 15:20:36 -070069
70/* NFSv4 COMPOUND tags are only wanted for debugging purposes */
71#ifdef DEBUG
72#define NFS4_MAXTAGLEN 20
73#else
74#define NFS4_MAXTAGLEN 0
75#endif
76
Andy Adamson6c0195a2008-12-23 16:06:15 -050077/* lock,open owner id:
Trond Myklebust9f958ab2007-07-02 13:58:33 -040078 * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -070079 */
Trond Myklebust95b72eb2012-04-20 19:24:51 -040080#define open_owner_id_maxsz (1 + 2 + 1 + 1 + 2)
Trond Myklebustd035c362010-12-21 10:45:27 -050081#define lock_owner_id_maxsz (1 + 1 + 4)
Trond Myklebust9104a552007-07-17 21:52:42 -040082#define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
Linus Torvalds1da177e2005-04-16 15:20:36 -070083#define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
84#define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
85#define op_encode_hdr_maxsz (1)
86#define op_decode_hdr_maxsz (2)
Trond Myklebust9104a552007-07-17 21:52:42 -040087#define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
88#define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
89#define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
90#define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
Linus Torvalds1da177e2005-04-16 15:20:36 -070091#define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
92 (NFS4_FHSIZE >> 2))
93#define decode_putfh_maxsz (op_decode_hdr_maxsz)
94#define encode_putrootfh_maxsz (op_encode_hdr_maxsz)
95#define decode_putrootfh_maxsz (op_decode_hdr_maxsz)
96#define encode_getfh_maxsz (op_encode_hdr_maxsz)
97#define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
98 ((3+NFS4_FHSIZE) >> 2))
Andy Adamsone5012d12011-07-11 17:17:42 -040099#define nfs4_fattr_bitmap_maxsz 4
J. Bruce Fields96928202005-06-22 17:16:22 +0000100#define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101#define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
102#define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
Trond Myklebustbd625ba2007-07-08 18:38:23 -0400103#define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
104#define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
David Quigleyaa9c2662013-05-22 12:50:44 -0400105#ifdef CONFIG_NFS_V4_SECURITY_LABEL
106/* PI(4 bytes) + LFS(4 bytes) + 1(for null terminator?) + MAXLABELLEN */
107#define nfs4_label_maxsz (4 + 4 + 1 + XDR_QUADLEN(NFS4_MAXLABELLEN))
David Quigleyaa9c2662013-05-22 12:50:44 -0400108#else
109#define nfs4_label_maxsz 0
David Quigleyaa9c2662013-05-22 12:50:44 -0400110#endif
Andy Adamson88034c32012-05-23 05:02:34 -0400111/* We support only one layout type per file system */
112#define decode_mdsthreshold_maxsz (1 + 1 + nfs4_fattr_bitmap_maxsz + 1 + 8)
J. Bruce Fields96928202005-06-22 17:16:22 +0000113/* This is based on getfattr, which uses the most attributes: */
114#define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
Andy Adamson88034c32012-05-23 05:02:34 -0400115 3 + 3 + 3 + nfs4_owner_maxsz + \
David Quigleyaa9c2662013-05-22 12:50:44 -0400116 nfs4_group_maxsz + nfs4_label_maxsz + \
117 decode_mdsthreshold_maxsz))
J. Bruce Fields96928202005-06-22 17:16:22 +0000118#define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
119 nfs4_fattr_value_maxsz)
120#define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400121#define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
122 1 + 2 + 1 + \
123 nfs4_owner_maxsz + \
124 nfs4_group_maxsz + \
David Quigleyaa9c2662013-05-22 12:50:44 -0400125 nfs4_label_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400126 4 + 4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127#define encode_savefh_maxsz (op_encode_hdr_maxsz)
128#define decode_savefh_maxsz (op_decode_hdr_maxsz)
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400129#define encode_restorefh_maxsz (op_encode_hdr_maxsz)
130#define decode_restorefh_maxsz (op_decode_hdr_maxsz)
Fred Isaman2f42b5d2008-03-13 15:26:30 +0200131#define encode_fsinfo_maxsz (encode_getattr_maxsz)
Fred Isamandae100c2011-07-30 20:52:37 -0400132/* The 5 accounts for the PNFS attributes, and assumes that at most three
133 * layout types will be returned.
134 */
135#define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \
136 nfs4_fattr_bitmap_maxsz + 4 + 8 + 5)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137#define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
138#define decode_renew_maxsz (op_decode_hdr_maxsz)
139#define encode_setclientid_maxsz \
140 (op_encode_hdr_maxsz + \
Chuck Levercc38bac2007-12-10 14:56:54 -0500141 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
142 XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \
143 1 /* sc_prog */ + \
144 XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
145 XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
146 1) /* sc_cb_ident */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147#define decode_setclientid_maxsz \
148 (op_decode_hdr_maxsz + \
149 2 + \
150 1024) /* large value for CLID_INUSE */
151#define encode_setclientid_confirm_maxsz \
152 (op_encode_hdr_maxsz + \
153 3 + (NFS4_VERIFIER_SIZE >> 2))
154#define decode_setclientid_confirm_maxsz \
155 (op_decode_hdr_maxsz)
Trond Myklebuste6889622007-07-02 13:58:30 -0400156#define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
157#define decode_lookup_maxsz (op_decode_hdr_maxsz)
Trond Myklebust2cebf822007-07-02 13:57:28 -0400158#define encode_share_access_maxsz \
159 (2)
Alexandros Batsakis4882ef72009-12-05 13:30:21 -0500160#define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
Trond Myklebust2cebf822007-07-02 13:57:28 -0400161#define encode_opentype_maxsz (1 + encode_createmode_maxsz)
162#define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
163#define encode_open_maxsz (op_encode_hdr_maxsz + \
164 2 + encode_share_access_maxsz + 2 + \
165 open_owner_id_maxsz + \
166 encode_opentype_maxsz + \
167 encode_claim_null_maxsz)
168#define decode_ace_maxsz (3 + nfs4_owner_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400169#define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400170 decode_ace_maxsz)
171#define decode_change_info_maxsz (5)
172#define decode_open_maxsz (op_decode_hdr_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400173 decode_stateid_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400174 decode_change_info_maxsz + 1 + \
175 nfs4_fattr_bitmap_maxsz + \
176 decode_delegation_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400177#define encode_open_confirm_maxsz \
178 (op_encode_hdr_maxsz + \
179 encode_stateid_maxsz + 1)
180#define decode_open_confirm_maxsz \
181 (op_decode_hdr_maxsz + \
182 decode_stateid_maxsz)
183#define encode_open_downgrade_maxsz \
184 (op_encode_hdr_maxsz + \
185 encode_stateid_maxsz + 1 + \
186 encode_share_access_maxsz)
187#define decode_open_downgrade_maxsz \
188 (op_decode_hdr_maxsz + \
189 decode_stateid_maxsz)
190#define encode_close_maxsz (op_encode_hdr_maxsz + \
191 1 + encode_stateid_maxsz)
192#define decode_close_maxsz (op_decode_hdr_maxsz + \
193 decode_stateid_maxsz)
194#define encode_setattr_maxsz (op_encode_hdr_maxsz + \
195 encode_stateid_maxsz + \
196 encode_attrs_maxsz)
197#define decode_setattr_maxsz (op_decode_hdr_maxsz + \
198 nfs4_fattr_bitmap_maxsz)
199#define encode_read_maxsz (op_encode_hdr_maxsz + \
200 encode_stateid_maxsz + 3)
201#define decode_read_maxsz (op_decode_hdr_maxsz + 2)
202#define encode_readdir_maxsz (op_encode_hdr_maxsz + \
David Quigleyaa9c2662013-05-22 12:50:44 -0400203 2 + encode_verifier_maxsz + 5 + \
204 nfs4_label_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400205#define decode_readdir_maxsz (op_decode_hdr_maxsz + \
Chuck Levera7697f62014-03-12 12:51:17 -0400206 decode_verifier_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400207#define encode_readlink_maxsz (op_encode_hdr_maxsz)
208#define decode_readlink_maxsz (op_decode_hdr_maxsz + 1)
209#define encode_write_maxsz (op_encode_hdr_maxsz + \
210 encode_stateid_maxsz + 4)
211#define decode_write_maxsz (op_decode_hdr_maxsz + \
212 2 + decode_verifier_maxsz)
213#define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
214#define decode_commit_maxsz (op_decode_hdr_maxsz + \
215 decode_verifier_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216#define encode_remove_maxsz (op_encode_hdr_maxsz + \
217 nfs4_name_maxsz)
Benny Halevy6ce18392009-04-01 09:22:06 -0400218#define decode_remove_maxsz (op_decode_hdr_maxsz + \
219 decode_change_info_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220#define encode_rename_maxsz (op_encode_hdr_maxsz + \
221 2 * nfs4_name_maxsz)
Benny Halevy6ce18392009-04-01 09:22:06 -0400222#define decode_rename_maxsz (op_decode_hdr_maxsz + \
223 decode_change_info_maxsz + \
224 decode_change_info_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225#define encode_link_maxsz (op_encode_hdr_maxsz + \
226 nfs4_name_maxsz)
Benny Halevy6ce18392009-04-01 09:22:06 -0400227#define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
Trond Myklebustdaccbde2010-06-25 18:11:43 -0400228#define encode_lockowner_maxsz (7)
Trond Myklebust9104a552007-07-17 21:52:42 -0400229#define encode_lock_maxsz (op_encode_hdr_maxsz + \
230 7 + \
Trond Myklebustdaccbde2010-06-25 18:11:43 -0400231 1 + encode_stateid_maxsz + 1 + \
232 encode_lockowner_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400233#define decode_lock_denied_maxsz \
234 (8 + decode_lockowner_maxsz)
235#define decode_lock_maxsz (op_decode_hdr_maxsz + \
236 decode_lock_denied_maxsz)
Trond Myklebustdaccbde2010-06-25 18:11:43 -0400237#define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
238 encode_lockowner_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400239#define decode_lockt_maxsz (op_decode_hdr_maxsz + \
240 decode_lock_denied_maxsz)
241#define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
242 encode_stateid_maxsz + \
243 4)
244#define decode_locku_maxsz (op_decode_hdr_maxsz + \
245 decode_stateid_maxsz)
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -0400246#define encode_release_lockowner_maxsz \
247 (op_encode_hdr_maxsz + \
248 encode_lockowner_maxsz)
249#define decode_release_lockowner_maxsz \
250 (op_decode_hdr_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400251#define encode_access_maxsz (op_encode_hdr_maxsz + 1)
252#define decode_access_maxsz (op_decode_hdr_maxsz + 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253#define encode_symlink_maxsz (op_encode_hdr_maxsz + \
254 1 + nfs4_name_maxsz + \
Chuck Lever94a6d752006-08-22 20:06:23 -0400255 1 + \
J. Bruce Fields96928202005-06-22 17:16:22 +0000256 nfs4_fattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257#define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
258#define encode_create_maxsz (op_encode_hdr_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400259 1 + 2 + nfs4_name_maxsz + \
260 encode_attrs_maxsz)
Trond Myklebust2cebf822007-07-02 13:57:28 -0400261#define decode_create_maxsz (op_decode_hdr_maxsz + \
262 decode_change_info_maxsz + \
263 nfs4_fattr_bitmap_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400264#define encode_statfs_maxsz (encode_getattr_maxsz)
265#define decode_statfs_maxsz (decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266#define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
267#define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400268#define encode_getacl_maxsz (encode_getattr_maxsz)
269#define decode_getacl_maxsz (op_decode_hdr_maxsz + \
270 nfs4_fattr_bitmap_maxsz + 1)
271#define encode_setacl_maxsz (op_encode_hdr_maxsz + \
272 encode_stateid_maxsz + 3)
273#define decode_setacl_maxsz (decode_setattr_maxsz)
Trond Myklebuste6889622007-07-02 13:58:30 -0400274#define encode_fs_locations_maxsz \
275 (encode_getattr_maxsz)
276#define decode_fs_locations_maxsz \
277 (0)
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +0000278#define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
Bryan Schumaker1650add2011-06-02 15:07:35 -0400279#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 -0400280
281#if defined(CONFIG_NFS_V4_1)
Andy Adamsonfc931582009-04-01 09:22:31 -0400282#define NFS4_MAX_MACHINE_NAME_LEN (64)
Jim Reesd751f742012-11-16 18:12:06 -0500283#define IMPL_NAME_LIMIT (sizeof(utsname()->sysname) + sizeof(utsname()->release) + \
284 sizeof(utsname()->version) + sizeof(utsname()->machine) + 8)
Andy Adamsonfc931582009-04-01 09:22:31 -0400285
Benny Halevy99fe60d2009-04-01 09:22:29 -0400286#define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
287 encode_verifier_maxsz + \
288 1 /* co_ownerid.len */ + \
289 XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \
290 1 /* flags */ + \
291 1 /* spa_how */ + \
Weston Andros Adamson2031cd12013-08-13 16:37:32 -0400292 /* max is SP4_MACH_CRED (for now) */ + \
293 1 + NFS4_OP_MAP_NUM_WORDS + \
294 1 + NFS4_OP_MAP_NUM_WORDS + \
Weston Andros Adamsondb8ac8b2012-02-17 15:20:24 -0500295 1 /* implementation id array of size 1 */ + \
296 1 /* nii_domain */ + \
297 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
298 1 /* nii_name */ + \
Jim Reesd751f742012-11-16 18:12:06 -0500299 XDR_QUADLEN(IMPL_NAME_LIMIT) + \
Weston Andros Adamsondb8ac8b2012-02-17 15:20:24 -0500300 3 /* nii_date */)
Benny Halevy99fe60d2009-04-01 09:22:29 -0400301#define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
302 2 /* eir_clientid */ + \
303 1 /* eir_sequenceid */ + \
304 1 /* eir_flags */ + \
305 1 /* spr_how */ + \
Weston Andros Adamson2031cd12013-08-13 16:37:32 -0400306 /* max is SP4_MACH_CRED (for now) */ + \
307 1 + NFS4_OP_MAP_NUM_WORDS + \
308 1 + NFS4_OP_MAP_NUM_WORDS + \
Benny Halevy99fe60d2009-04-01 09:22:29 -0400309 2 /* eir_server_owner.so_minor_id */ + \
310 /* eir_server_owner.so_major_id<> */ \
311 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
312 /* eir_server_scope<> */ \
313 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
314 1 /* eir_server_impl_id array length */ + \
Weston Andros Adamson7d2ed9a2012-02-17 15:20:26 -0500315 1 /* nii_domain */ + \
316 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
317 1 /* nii_name */ + \
318 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
319 3 /* nii_date */)
Andy Adamsonfc931582009-04-01 09:22:31 -0400320#define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
321#define decode_channel_attrs_maxsz (6 + \
322 1 /* ca_rdma_ird.len */ + \
323 1 /* ca_rdma_ird */)
324#define encode_create_session_maxsz (op_encode_hdr_maxsz + \
325 2 /* csa_clientid */ + \
326 1 /* csa_sequence */ + \
327 1 /* csa_flags */ + \
328 encode_channel_attrs_maxsz + \
329 encode_channel_attrs_maxsz + \
330 1 /* csa_cb_program */ + \
331 1 /* csa_sec_parms.len (1) */ + \
332 1 /* cb_secflavor (AUTH_SYS) */ + \
333 1 /* stamp */ + \
334 1 /* machinename.len */ + \
335 XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
336 1 /* uid */ + \
337 1 /* gid */ + \
338 1 /* gids.len (0) */)
339#define decode_create_session_maxsz (op_decode_hdr_maxsz + \
340 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
341 1 /* csr_sequence */ + \
342 1 /* csr_flags */ + \
343 decode_channel_attrs_maxsz + \
344 decode_channel_attrs_maxsz)
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -0400345#define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \
346 /* bctsa_sessid */ \
347 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
348 1 /* bctsa_dir */ + \
349 1 /* bctsa_use_conn_in_rdma_mode */)
350#define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \
351 /* bctsr_sessid */ \
352 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
353 1 /* bctsr_dir */ + \
354 1 /* bctsr_use_conn_in_rdma_mode */)
Andy Adamson0f3e66c2009-04-01 09:22:34 -0400355#define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
356#define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
Trond Myklebust66245532012-05-25 17:18:09 -0400357#define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2)
358#define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz)
Andy Adamsonfc01cea2009-04-01 09:22:36 -0400359#define encode_sequence_maxsz (op_encode_hdr_maxsz + \
360 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
361#define decode_sequence_maxsz (op_decode_hdr_maxsz + \
362 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
Ricardo Labiaga180197532009-12-05 16:08:40 -0500363#define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
364#define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
Andy Adamson7f11d8d2011-07-30 20:52:35 -0400365#define encode_getdevicelist_maxsz (op_encode_hdr_maxsz + 4 + \
366 encode_verifier_maxsz)
367#define decode_getdevicelist_maxsz (op_decode_hdr_maxsz + \
368 2 /* nfs_cookie4 gdlr_cookie */ + \
369 decode_verifier_maxsz \
370 /* verifier4 gdlr_verifier */ + \
371 1 /* gdlr_deviceid_list count */ + \
372 XDR_QUADLEN(NFS4_PNFS_GETDEVLIST_MAXNUM * \
373 NFS4_DEVICEID4_SIZE) \
374 /* gdlr_deviceid_list */ + \
375 1 /* bool gdlr_eof */)
Andy Adamsonb1f69b72010-10-20 00:18:03 -0400376#define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \
377 XDR_QUADLEN(NFS4_DEVICEID4_SIZE))
378#define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \
379 1 /* layout type */ + \
380 1 /* opaque devaddr4 length */ + \
381 /* devaddr4 payload is read into page */ \
382 1 /* notification bitmap length */ + \
383 1 /* notification bitmap */)
384#define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \
385 encode_stateid_maxsz)
386#define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \
387 decode_stateid_maxsz + \
388 XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE))
Andy Adamson863a3c62011-03-23 13:27:54 +0000389#define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \
390 2 /* offset */ + \
391 2 /* length */ + \
392 1 /* reclaim */ + \
393 encode_stateid_maxsz + \
394 1 /* new offset (true) */ + \
395 2 /* last byte written */ + \
396 1 /* nt_timechanged (false) */ + \
397 1 /* layoutupdate4 layout type */ + \
398 1 /* NULL filelayout layoutupdate4 payload */)
399#define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3)
Benny Halevycbe82602011-05-22 19:52:37 +0300400#define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \
401 encode_stateid_maxsz + \
402 1 /* FIXME: opaque lrf_body always empty at the moment */)
403#define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \
404 1 + decode_stateid_maxsz)
Bryan Schumakerfca78d62011-06-02 14:59:07 -0400405#define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1)
406#define decode_secinfo_no_name_maxsz decode_secinfo_maxsz
Bryan Schumaker7d974792011-06-02 14:59:08 -0400407#define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \
408 XDR_QUADLEN(NFS4_STATEID_SIZE))
409#define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1)
Bryan Schumaker9aeda352011-06-02 14:59:09 -0400410#define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \
411 XDR_QUADLEN(NFS4_STATEID_SIZE))
Andy Adamson9f79fb42013-09-10 12:56:29 -0400412#define decode_free_stateid_maxsz (op_decode_hdr_maxsz)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400413#else /* CONFIG_NFS_V4_1 */
414#define encode_sequence_maxsz 0
415#define decode_sequence_maxsz 0
416#endif /* CONFIG_NFS_V4_1 */
417
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418#define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
419#define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
420#define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400421 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400423 encode_read_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424#define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400425 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400427 decode_read_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700428#define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400429 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400431 encode_readlink_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432#define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400433 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400435 decode_readlink_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436#define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400437 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400439 encode_readdir_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440#define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400441 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400443 decode_readdir_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444#define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400445 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400447 encode_write_maxsz + \
Trond Myklebust4f9838c2005-10-27 22:12:44 -0400448 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449#define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400450 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400452 decode_write_maxsz + \
Trond Myklebust4f9838c2005-10-27 22:12:44 -0400453 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454#define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400455 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456 encode_putfh_maxsz + \
Trond Myklebust85827152012-04-29 10:44:42 -0400457 encode_commit_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458#define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400459 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460 decode_putfh_maxsz + \
Trond Myklebust85827152012-04-29 10:44:42 -0400461 decode_commit_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462#define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400463 encode_sequence_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400464 encode_putfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400465 encode_open_maxsz + \
Weston Andros Adamson6168f622012-09-10 14:00:46 -0400466 encode_access_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400467 encode_getfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400468 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469#define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400470 decode_sequence_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400471 decode_putfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400472 decode_open_maxsz + \
Weston Andros Adamson6168f622012-09-10 14:00:46 -0400473 decode_access_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400474 decode_getfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400475 decode_getattr_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400476#define NFS4_enc_open_confirm_sz \
477 (compound_encode_hdr_maxsz + \
478 encode_putfh_maxsz + \
479 encode_open_confirm_maxsz)
480#define NFS4_dec_open_confirm_sz \
481 (compound_decode_hdr_maxsz + \
482 decode_putfh_maxsz + \
483 decode_open_confirm_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484#define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400485 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486 encode_putfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400487 encode_open_maxsz + \
Weston Andros Adamson6168f622012-09-10 14:00:46 -0400488 encode_access_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400489 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490#define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400491 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492 decode_putfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400493 decode_open_maxsz + \
Weston Andros Adamson6168f622012-09-10 14:00:46 -0400494 decode_access_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400495 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496#define NFS4_enc_open_downgrade_sz \
497 (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400498 encode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400499 encode_putfh_maxsz + \
500 encode_open_downgrade_maxsz + \
501 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502#define NFS4_dec_open_downgrade_sz \
503 (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400504 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400505 decode_putfh_maxsz + \
506 decode_open_downgrade_maxsz + \
507 decode_getattr_maxsz)
508#define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400509 encode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400510 encode_putfh_maxsz + \
511 encode_close_maxsz + \
512 encode_getattr_maxsz)
513#define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400514 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400515 decode_putfh_maxsz + \
516 decode_close_maxsz + \
517 decode_getattr_maxsz)
518#define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400519 encode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400520 encode_putfh_maxsz + \
521 encode_setattr_maxsz + \
522 encode_getattr_maxsz)
523#define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400524 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400525 decode_putfh_maxsz + \
526 decode_setattr_maxsz + \
527 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700528#define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400529 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530 encode_putfh_maxsz + \
531 encode_fsinfo_maxsz)
532#define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400533 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700534 decode_putfh_maxsz + \
535 decode_fsinfo_maxsz)
536#define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
537 encode_renew_maxsz)
538#define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
539 decode_renew_maxsz)
540#define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
541 encode_setclientid_maxsz)
542#define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
543 decode_setclientid_maxsz)
544#define NFS4_enc_setclientid_confirm_sz \
545 (compound_encode_hdr_maxsz + \
Chuck Lever83ca7f52013-03-16 15:55:53 -0400546 encode_setclientid_confirm_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700547#define NFS4_dec_setclientid_confirm_sz \
548 (compound_decode_hdr_maxsz + \
Chuck Lever83ca7f52013-03-16 15:55:53 -0400549 decode_setclientid_confirm_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700550#define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400551 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400553 encode_lock_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700554#define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400555 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700556 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400557 decode_lock_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700558#define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400559 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400561 encode_lockt_maxsz)
562#define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400563 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400564 decode_putfh_maxsz + \
565 decode_lockt_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566#define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400567 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700568 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400569 encode_locku_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570#define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400571 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400573 decode_locku_maxsz)
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -0400574#define NFS4_enc_release_lockowner_sz \
575 (compound_encode_hdr_maxsz + \
576 encode_lockowner_maxsz)
577#define NFS4_dec_release_lockowner_sz \
578 (compound_decode_hdr_maxsz + \
579 decode_lockowner_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580#define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400581 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700582 encode_putfh_maxsz + \
Trond Myklebust76b32992007-08-10 17:45:11 -0400583 encode_access_maxsz + \
584 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585#define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400586 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587 decode_putfh_maxsz + \
Trond Myklebust76b32992007-08-10 17:45:11 -0400588 decode_access_maxsz + \
589 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590#define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400591 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700592 encode_putfh_maxsz + \
Chuck Lever44c99932013-10-17 14:13:30 -0400593 encode_getattr_maxsz + \
594 encode_renew_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595#define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400596 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597 decode_putfh_maxsz + \
Chuck Lever44c99932013-10-17 14:13:30 -0400598 decode_getattr_maxsz + \
599 decode_renew_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600#define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400601 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602 encode_putfh_maxsz + \
603 encode_lookup_maxsz + \
604 encode_getattr_maxsz + \
605 encode_getfh_maxsz)
606#define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400607 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608 decode_putfh_maxsz + \
Trond Myklebuste6889622007-07-02 13:58:30 -0400609 decode_lookup_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700610 decode_getattr_maxsz + \
611 decode_getfh_maxsz)
612#define NFS4_enc_lookup_root_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_putrootfh_maxsz + \
615 encode_getattr_maxsz + \
616 encode_getfh_maxsz)
617#define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400618 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700619 decode_putrootfh_maxsz + \
620 decode_getattr_maxsz + \
621 decode_getfh_maxsz)
622#define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400623 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700624 encode_putfh_maxsz + \
Trond Myklebust778d2812012-04-27 13:48:19 -0400625 encode_remove_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700626#define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400627 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628 decode_putfh_maxsz + \
Trond Myklebust778d2812012-04-27 13:48:19 -0400629 decode_remove_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700630#define NFS4_enc_rename_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_savefh_maxsz + \
634 encode_putfh_maxsz + \
Trond Myklebust778d2812012-04-27 13:48:19 -0400635 encode_rename_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636#define NFS4_dec_rename_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_savefh_maxsz + \
640 decode_putfh_maxsz + \
Trond Myklebust778d2812012-04-27 13:48:19 -0400641 decode_rename_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700642#define NFS4_enc_link_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 + \
645 encode_savefh_maxsz + \
646 encode_putfh_maxsz + \
Trond Myklebust91ba2ee2005-10-27 22:12:42 -0400647 encode_link_maxsz + \
Trond Myklebust91ba2ee2005-10-27 22:12:42 -0400648 encode_restorefh_maxsz + \
Trond Myklebusta9f69912012-04-27 13:48:17 -0400649 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650#define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400651 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652 decode_putfh_maxsz + \
653 decode_savefh_maxsz + \
654 decode_putfh_maxsz + \
Trond Myklebust91ba2ee2005-10-27 22:12:42 -0400655 decode_link_maxsz + \
Trond Myklebust91ba2ee2005-10-27 22:12:42 -0400656 decode_restorefh_maxsz + \
657 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700658#define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400659 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700660 encode_putfh_maxsz + \
661 encode_symlink_maxsz + \
662 encode_getattr_maxsz + \
663 encode_getfh_maxsz)
664#define NFS4_dec_symlink_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_symlink_maxsz + \
668 decode_getattr_maxsz + \
669 decode_getfh_maxsz)
670#define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400671 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700672 encode_putfh_maxsz + \
673 encode_create_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400674 encode_getfh_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400675 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676#define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400677 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678 decode_putfh_maxsz + \
679 decode_create_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400680 decode_getfh_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400681 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682#define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400683 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684 encode_putfh_maxsz + \
685 encode_getattr_maxsz)
686#define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400687 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700688 decode_putfh_maxsz + \
689 decode_getattr_maxsz)
690#define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400691 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700692 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400693 encode_statfs_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700694#define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400695 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700696 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400697 decode_statfs_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698#define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400699 encode_sequence_maxsz + \
Trond Myklebustab91f262007-02-02 14:47:17 -0800700 encode_putfh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701 encode_getattr_maxsz)
702#define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400703 decode_sequence_maxsz + \
Trond Myklebustab91f262007-02-02 14:47:17 -0800704 decode_putfh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705 decode_getattr_maxsz)
706#define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400707 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708 encode_putfh_maxsz + \
Trond Myklebustfa178f22006-01-03 09:55:38 +0100709 encode_delegreturn_maxsz + \
710 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700711#define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400712 decode_sequence_maxsz + \
Trond Myklebustfa178f22006-01-03 09:55:38 +0100713 decode_delegreturn_maxsz + \
714 decode_getattr_maxsz)
J. Bruce Fields029d1052005-06-22 17:16:22 +0000715#define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400716 encode_sequence_maxsz + \
J. Bruce Fields029d1052005-06-22 17:16:22 +0000717 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400718 encode_getacl_maxsz)
J. Bruce Fields029d1052005-06-22 17:16:22 +0000719#define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400720 decode_sequence_maxsz + \
J. Bruce Fields029d1052005-06-22 17:16:22 +0000721 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400722 decode_getacl_maxsz)
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000723#define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400724 encode_sequence_maxsz + \
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000725 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400726 encode_setacl_maxsz)
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000727#define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400728 decode_sequence_maxsz + \
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000729 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400730 decode_setacl_maxsz)
Trond Myklebust683b57b2006-06-09 09:34:22 -0400731#define NFS4_enc_fs_locations_sz \
732 (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400733 encode_sequence_maxsz + \
Trond Myklebust683b57b2006-06-09 09:34:22 -0400734 encode_putfh_maxsz + \
Trond Myklebuste6889622007-07-02 13:58:30 -0400735 encode_lookup_maxsz + \
Chuck Leverb03d7352013-10-17 14:12:50 -0400736 encode_fs_locations_maxsz + \
737 encode_renew_maxsz)
Trond Myklebust683b57b2006-06-09 09:34:22 -0400738#define NFS4_dec_fs_locations_sz \
739 (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400740 decode_sequence_maxsz + \
Trond Myklebust683b57b2006-06-09 09:34:22 -0400741 decode_putfh_maxsz + \
Trond Myklebuste6889622007-07-02 13:58:30 -0400742 decode_lookup_maxsz + \
Chuck Leverb03d7352013-10-17 14:12:50 -0400743 decode_fs_locations_maxsz + \
744 decode_renew_maxsz)
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +0000745#define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \
746 encode_sequence_maxsz + \
747 encode_putfh_maxsz + \
748 encode_secinfo_maxsz)
749#define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \
750 decode_sequence_maxsz + \
751 decode_putfh_maxsz + \
752 decode_secinfo_maxsz)
Chuck Lever44c99932013-10-17 14:13:30 -0400753#define NFS4_enc_fsid_present_sz \
754 (compound_encode_hdr_maxsz + \
755 encode_sequence_maxsz + \
756 encode_putfh_maxsz + \
757 encode_getfh_maxsz + \
758 encode_renew_maxsz)
759#define NFS4_dec_fsid_present_sz \
760 (compound_decode_hdr_maxsz + \
761 decode_sequence_maxsz + \
762 decode_putfh_maxsz + \
763 decode_getfh_maxsz + \
764 decode_renew_maxsz)
Benny Halevy99fe60d2009-04-01 09:22:29 -0400765#if defined(CONFIG_NFS_V4_1)
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -0400766#define NFS4_enc_bind_conn_to_session_sz \
767 (compound_encode_hdr_maxsz + \
768 encode_bind_conn_to_session_maxsz)
769#define NFS4_dec_bind_conn_to_session_sz \
770 (compound_decode_hdr_maxsz + \
771 decode_bind_conn_to_session_maxsz)
Benny Halevy99fe60d2009-04-01 09:22:29 -0400772#define NFS4_enc_exchange_id_sz \
773 (compound_encode_hdr_maxsz + \
774 encode_exchange_id_maxsz)
775#define NFS4_dec_exchange_id_sz \
776 (compound_decode_hdr_maxsz + \
777 decode_exchange_id_maxsz)
Andy Adamsonfc931582009-04-01 09:22:31 -0400778#define NFS4_enc_create_session_sz \
779 (compound_encode_hdr_maxsz + \
780 encode_create_session_maxsz)
781#define NFS4_dec_create_session_sz \
782 (compound_decode_hdr_maxsz + \
783 decode_create_session_maxsz)
Andy Adamson0f3e66c2009-04-01 09:22:34 -0400784#define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
785 encode_destroy_session_maxsz)
786#define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
787 decode_destroy_session_maxsz)
Trond Myklebust66245532012-05-25 17:18:09 -0400788#define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \
789 encode_destroy_clientid_maxsz)
790#define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \
791 decode_destroy_clientid_maxsz)
Andy Adamsonfc01cea2009-04-01 09:22:36 -0400792#define NFS4_enc_sequence_sz \
793 (compound_decode_hdr_maxsz + \
794 encode_sequence_maxsz)
795#define NFS4_dec_sequence_sz \
796 (compound_decode_hdr_maxsz + \
797 decode_sequence_maxsz)
Andy Adamson2050f0c2009-04-01 09:22:30 -0400798#define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
799 encode_sequence_maxsz + \
800 encode_putrootfh_maxsz + \
801 encode_fsinfo_maxsz)
802#define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
803 decode_sequence_maxsz + \
804 decode_putrootfh_maxsz + \
805 decode_fsinfo_maxsz)
Ricardo Labiaga180197532009-12-05 16:08:40 -0500806#define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
807 encode_sequence_maxsz + \
808 encode_reclaim_complete_maxsz)
809#define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
810 decode_sequence_maxsz + \
811 decode_reclaim_complete_maxsz)
Andy Adamson7f11d8d2011-07-30 20:52:35 -0400812#define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \
813 encode_sequence_maxsz + \
814 encode_putfh_maxsz + \
815 encode_getdevicelist_maxsz)
816#define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \
817 decode_sequence_maxsz + \
818 decode_putfh_maxsz + \
819 decode_getdevicelist_maxsz)
Andy Adamsonb1f69b72010-10-20 00:18:03 -0400820#define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \
821 encode_sequence_maxsz +\
822 encode_getdeviceinfo_maxsz)
823#define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \
824 decode_sequence_maxsz + \
825 decode_getdeviceinfo_maxsz)
826#define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \
827 encode_sequence_maxsz + \
828 encode_putfh_maxsz + \
829 encode_layoutget_maxsz)
830#define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \
831 decode_sequence_maxsz + \
832 decode_putfh_maxsz + \
833 decode_layoutget_maxsz)
Andy Adamson863a3c62011-03-23 13:27:54 +0000834#define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \
835 encode_sequence_maxsz +\
836 encode_putfh_maxsz + \
837 encode_layoutcommit_maxsz + \
838 encode_getattr_maxsz)
839#define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \
840 decode_sequence_maxsz + \
841 decode_putfh_maxsz + \
842 decode_layoutcommit_maxsz + \
843 decode_getattr_maxsz)
Benny Halevycbe82602011-05-22 19:52:37 +0300844#define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \
845 encode_sequence_maxsz + \
846 encode_putfh_maxsz + \
847 encode_layoutreturn_maxsz)
848#define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \
849 decode_sequence_maxsz + \
850 decode_putfh_maxsz + \
851 decode_layoutreturn_maxsz)
Bryan Schumakerfca78d62011-06-02 14:59:07 -0400852#define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \
853 encode_sequence_maxsz + \
854 encode_putrootfh_maxsz +\
855 encode_secinfo_no_name_maxsz)
856#define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \
857 decode_sequence_maxsz + \
858 decode_putrootfh_maxsz + \
859 decode_secinfo_no_name_maxsz)
Bryan Schumaker7d974792011-06-02 14:59:08 -0400860#define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \
861 encode_sequence_maxsz + \
862 encode_test_stateid_maxsz)
863#define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \
864 decode_sequence_maxsz + \
865 decode_test_stateid_maxsz)
Bryan Schumaker9aeda352011-06-02 14:59:09 -0400866#define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \
867 encode_sequence_maxsz + \
868 encode_free_stateid_maxsz)
869#define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \
870 decode_sequence_maxsz + \
871 decode_free_stateid_maxsz)
Alexandros Batsakis2449ea22009-12-05 13:36:55 -0500872
873const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
874 compound_encode_hdr_maxsz +
875 encode_sequence_maxsz +
876 encode_putfh_maxsz +
877 encode_getattr_maxsz) *
878 XDR_UNIT);
879
880const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
881 compound_decode_hdr_maxsz +
882 decode_sequence_maxsz +
883 decode_putfh_maxsz) *
884 XDR_UNIT);
Andy Adamsonf1c097b2013-06-25 19:02:53 -0400885
886const u32 nfs41_maxgetdevinfo_overhead = ((RPC_MAX_REPHEADER_WITH_AUTH +
887 compound_decode_hdr_maxsz +
888 decode_sequence_maxsz) *
889 XDR_UNIT);
890EXPORT_SYMBOL_GPL(nfs41_maxgetdevinfo_overhead);
Benny Halevy99fe60d2009-04-01 09:22:29 -0400891#endif /* CONFIG_NFS_V4_1 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700892
Trond Myklebustbca79472009-03-11 14:10:26 -0400893static const umode_t nfs_type2fmt[] = {
894 [NF4BAD] = 0,
895 [NF4REG] = S_IFREG,
896 [NF4DIR] = S_IFDIR,
897 [NF4BLK] = S_IFBLK,
898 [NF4CHR] = S_IFCHR,
899 [NF4LNK] = S_IFLNK,
900 [NF4SOCK] = S_IFSOCK,
901 [NF4FIFO] = S_IFIFO,
902 [NF4ATTRDIR] = 0,
903 [NF4NAMEDATTR] = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700904};
905
906struct compound_hdr {
907 int32_t status;
908 uint32_t nops;
Andy Adamsond0179312008-12-23 16:06:17 -0500909 __be32 * nops_p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700910 uint32_t taglen;
911 char * tag;
Benny Halevy0c4e8c12009-04-01 09:22:07 -0400912 uint32_t replen; /* expected reply words */
Benny Halevy66cc0422009-04-01 09:22:10 -0400913 u32 minorversion;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914};
915
Benny Halevy13c65ce2009-08-14 17:19:25 +0300916static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes)
917{
918 __be32 *p = xdr_reserve_space(xdr, nbytes);
919 BUG_ON(!p);
920 return p;
921}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922
Trond Myklebustcb17e552012-03-04 18:13:56 -0500923static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len)
924{
925 __be32 *p;
926
927 p = xdr_reserve_space(xdr, len);
928 xdr_encode_opaque_fixed(p, buf, len);
929}
930
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
932{
Al Viro8687b632006-10-19 23:28:48 -0700933 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934
Trond Myklebust6fdfb0bc2012-03-04 18:13:57 -0500935 p = reserve_space(xdr, 4 + len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936 xdr_encode_opaque(p, str, len);
937}
938
Trond Myklebust4ade9822012-03-04 18:13:57 -0500939static void encode_uint32(struct xdr_stream *xdr, u32 n)
940{
941 __be32 *p;
942
943 p = reserve_space(xdr, 4);
944 *p = cpu_to_be32(n);
945}
946
Trond Myklebustff2eb682012-03-05 11:40:12 -0500947static void encode_uint64(struct xdr_stream *xdr, u64 n)
948{
949 __be32 *p;
950
951 p = reserve_space(xdr, 8);
952 xdr_encode_hyper(p, n);
953}
954
Trond Myklebust4ade9822012-03-04 18:13:57 -0500955static void encode_nfs4_seqid(struct xdr_stream *xdr,
956 const struct nfs_seqid *seqid)
957{
958 encode_uint32(xdr, seqid->sequence->counter);
959}
960
Benny Halevy0c4e8c12009-04-01 09:22:07 -0400961static void encode_compound_hdr(struct xdr_stream *xdr,
962 struct rpc_rqst *req,
963 struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964{
Al Viro8687b632006-10-19 23:28:48 -0700965 __be32 *p;
Trond Myklebusta17c2152010-07-31 14:29:08 -0400966 struct rpc_auth *auth = req->rq_cred->cr_auth;
Benny Halevy0c4e8c12009-04-01 09:22:07 -0400967
968 /* initialize running count of expected bytes in reply.
969 * NOTE: the replied tag SHOULD be the same is the one sent,
970 * but this is not required as a MUST for the server to do so. */
971 hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700972
Trond Myklebust7fc38842012-10-15 11:51:21 -0400973 WARN_ON_ONCE(hdr->taglen > NFS4_MAXTAGLEN);
Trond Myklebust6fdfb0bc2012-03-04 18:13:57 -0500974 encode_string(xdr, hdr->taglen, hdr->tag);
975 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300976 *p++ = cpu_to_be32(hdr->minorversion);
Andy Adamsond0179312008-12-23 16:06:17 -0500977 hdr->nops_p = p;
Benny Halevy34558512009-08-14 17:19:30 +0300978 *p = cpu_to_be32(hdr->nops);
Andy Adamsond0179312008-12-23 16:06:17 -0500979}
980
Trond Myklebustab19b482012-03-04 18:13:57 -0500981static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op,
982 uint32_t replen,
983 struct compound_hdr *hdr)
984{
985 encode_uint32(xdr, op);
986 hdr->nops++;
987 hdr->replen += replen;
988}
989
Andy Adamsond0179312008-12-23 16:06:17 -0500990static void encode_nops(struct compound_hdr *hdr)
991{
Trond Myklebust7fc38842012-10-15 11:51:21 -0400992 WARN_ON_ONCE(hdr->nops > NFS4_MAX_OPS);
Andy Adamsond0179312008-12-23 16:06:17 -0500993 *hdr->nops_p = htonl(hdr->nops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994}
995
Trond Myklebustea9d23f2012-03-04 18:13:56 -0500996static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid)
997{
Trond Myklebust2d2f24a2012-03-04 18:13:57 -0500998 encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE);
Trond Myklebustea9d23f2012-03-04 18:13:56 -0500999}
1000
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
1002{
Trond Myklebustcb17e552012-03-04 18:13:56 -05001003 encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004}
1005
David Quigleyaa9c2662013-05-22 12:50:44 -04001006static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap,
1007 const struct nfs4_label *label,
1008 const struct nfs_server *server)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009{
1010 char owner_name[IDMAP_NAMESZ];
1011 char owner_group[IDMAP_NAMESZ];
1012 int owner_namelen = 0;
1013 int owner_grouplen = 0;
Al Viro8687b632006-10-19 23:28:48 -07001014 __be32 *p;
Trond Myklebustd7067b22013-07-17 17:09:01 -04001015 unsigned i;
1016 uint32_t len = 0;
1017 uint32_t bmval_len;
1018 uint32_t bmval[3] = { 0 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001019
1020 /*
1021 * We reserve enough space to write the entire attribute buffer at once.
1022 * In the worst-case, this would be
David Quigleya09df2c2013-05-22 12:50:41 -04001023 * 16(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
1024 * = 40 bytes, plus any contribution from variable-length fields
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001025 * such as owner/group.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001026 */
Trond Myklebustd7067b22013-07-17 17:09:01 -04001027 if (iap->ia_valid & ATTR_SIZE) {
1028 bmval[0] |= FATTR4_WORD0_SIZE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001029 len += 8;
Trond Myklebustd7067b22013-07-17 17:09:01 -04001030 }
1031 if (iap->ia_valid & ATTR_MODE) {
1032 bmval[1] |= FATTR4_WORD1_MODE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033 len += 4;
Trond Myklebustd7067b22013-07-17 17:09:01 -04001034 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035 if (iap->ia_valid & ATTR_UID) {
Trond Myklebuste4fd72a2011-02-22 15:44:31 -08001036 owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001037 if (owner_namelen < 0) {
Chuck Leverfe82a182007-09-11 18:01:10 -04001038 dprintk("nfs: couldn't resolve uid %d to string\n",
Eric W. Biedermane5782072013-02-01 14:22:02 -08001039 from_kuid(&init_user_ns, iap->ia_uid));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040 /* XXX */
1041 strcpy(owner_name, "nobody");
1042 owner_namelen = sizeof("nobody") - 1;
1043 /* goto out; */
1044 }
Trond Myklebustd7067b22013-07-17 17:09:01 -04001045 bmval[1] |= FATTR4_WORD1_OWNER;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001046 len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
1047 }
1048 if (iap->ia_valid & ATTR_GID) {
Trond Myklebuste4fd72a2011-02-22 15:44:31 -08001049 owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050 if (owner_grouplen < 0) {
Chuck Leverfe82a182007-09-11 18:01:10 -04001051 dprintk("nfs: couldn't resolve gid %d to string\n",
Eric W. Biedermane5782072013-02-01 14:22:02 -08001052 from_kgid(&init_user_ns, iap->ia_gid));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053 strcpy(owner_group, "nobody");
1054 owner_grouplen = sizeof("nobody") - 1;
1055 /* goto out; */
1056 }
Trond Myklebustd7067b22013-07-17 17:09:01 -04001057 bmval[1] |= FATTR4_WORD1_OWNER_GROUP;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
1059 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001060 if (iap->ia_valid & ATTR_ATIME_SET) {
Trond Myklebustd7067b22013-07-17 17:09:01 -04001061 bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET;
1062 len += 16;
1063 } else if (iap->ia_valid & ATTR_ATIME) {
1064 bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET;
1065 len += 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001066 }
1067 if (iap->ia_valid & ATTR_MTIME_SET) {
Trond Myklebustd7067b22013-07-17 17:09:01 -04001068 bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET;
1069 len += 16;
1070 } else if (iap->ia_valid & ATTR_MTIME) {
1071 bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET;
1072 len += 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001073 }
David Quigleyaa9c2662013-05-22 12:50:44 -04001074 if (label) {
Trond Myklebustd7067b22013-07-17 17:09:01 -04001075 len += 4 + 4 + 4 + (XDR_QUADLEN(label->len) << 2);
1076 bmval[2] |= FATTR4_WORD2_SECURITY_LABEL;
1077 }
1078
1079 if (bmval[2] != 0)
1080 bmval_len = 3;
1081 else if (bmval[1] != 0)
1082 bmval_len = 2;
1083 else
1084 bmval_len = 1;
1085
1086 p = reserve_space(xdr, 4 + (bmval_len << 2) + 4 + len);
1087
1088 *p++ = cpu_to_be32(bmval_len);
1089 for (i = 0; i < bmval_len; i++)
1090 *p++ = cpu_to_be32(bmval[i]);
1091 *p++ = cpu_to_be32(len);
1092
1093 if (bmval[0] & FATTR4_WORD0_SIZE)
1094 p = xdr_encode_hyper(p, iap->ia_size);
1095 if (bmval[1] & FATTR4_WORD1_MODE)
1096 *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
1097 if (bmval[1] & FATTR4_WORD1_OWNER)
1098 p = xdr_encode_opaque(p, owner_name, owner_namelen);
1099 if (bmval[1] & FATTR4_WORD1_OWNER_GROUP)
1100 p = xdr_encode_opaque(p, owner_group, owner_grouplen);
1101 if (bmval[1] & FATTR4_WORD1_TIME_ACCESS_SET) {
1102 if (iap->ia_valid & ATTR_ATIME_SET) {
1103 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
1104 p = xdr_encode_hyper(p, (s64)iap->ia_atime.tv_sec);
1105 *p++ = cpu_to_be32(iap->ia_atime.tv_nsec);
1106 } else
1107 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
1108 }
1109 if (bmval[1] & FATTR4_WORD1_TIME_MODIFY_SET) {
1110 if (iap->ia_valid & ATTR_MTIME_SET) {
1111 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
1112 p = xdr_encode_hyper(p, (s64)iap->ia_mtime.tv_sec);
1113 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
1114 } else
1115 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
1116 }
1117 if (bmval[2] & FATTR4_WORD2_SECURITY_LABEL) {
David Quigleyaa9c2662013-05-22 12:50:44 -04001118 *p++ = cpu_to_be32(label->lfs);
1119 *p++ = cpu_to_be32(label->pi);
1120 *p++ = cpu_to_be32(label->len);
1121 p = xdr_encode_opaque_fixed(p, label->label, label->len);
1122 }
Andy Adamson6c0195a2008-12-23 16:06:15 -05001123
Linus Torvalds1da177e2005-04-16 15:20:36 -07001124/* out: */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001125}
1126
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001127static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001128{
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001129 encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr);
1130 encode_uint32(xdr, access);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131}
1132
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001133static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001134{
Trond Myklebustab19b482012-03-04 18:13:57 -05001135 encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr);
Trond Myklebust4ade9822012-03-04 18:13:57 -05001136 encode_nfs4_seqid(xdr, arg->seqid);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001137 encode_nfs4_stateid(xdr, arg->stateid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001138}
1139
Fred Isaman0b7c0152012-04-20 14:47:39 -04001140static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001141{
Al Viro8687b632006-10-19 23:28:48 -07001142 __be32 *p;
Andy Adamson6c0195a2008-12-23 16:06:15 -05001143
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001144 encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr);
1145 p = reserve_space(xdr, 12);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001146 p = xdr_encode_hyper(p, args->offset);
Benny Halevy34558512009-08-14 17:19:30 +03001147 *p = cpu_to_be32(args->count);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001148}
1149
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001150static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001151{
Al Viro8687b632006-10-19 23:28:48 -07001152 __be32 *p;
Andy Adamson6c0195a2008-12-23 16:06:15 -05001153
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001154 encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr);
1155 encode_uint32(xdr, create->ftype);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001156
1157 switch (create->ftype) {
1158 case NF4LNK:
Benny Halevy13c65ce2009-08-14 17:19:25 +03001159 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001160 *p = cpu_to_be32(create->u.symlink.len);
Chuck Lever94a6d752006-08-22 20:06:23 -04001161 xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001162 break;
1163
1164 case NF4BLK: case NF4CHR:
Benny Halevy13c65ce2009-08-14 17:19:25 +03001165 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001166 *p++ = cpu_to_be32(create->u.device.specdata1);
Benny Halevy34558512009-08-14 17:19:30 +03001167 *p = cpu_to_be32(create->u.device.specdata2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001168 break;
1169
1170 default:
1171 break;
1172 }
1173
Benny Halevy811652b2009-08-14 17:19:34 +03001174 encode_string(xdr, create->name->len, create->name->name);
David Quigleyaa9c2662013-05-22 12:50:44 -04001175 encode_attrs(xdr, create->attrs, create->label, create->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001176}
1177
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001178static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179{
Andy Adamson05d564f2008-12-23 16:06:15 -05001180 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001181
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001182 encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
1183 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001184 *p++ = cpu_to_be32(1);
Benny Halevy34558512009-08-14 17:19:30 +03001185 *p = cpu_to_be32(bitmap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001186}
1187
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001188static 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 -07001189{
Andy Adamson05d564f2008-12-23 16:06:15 -05001190 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001191
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001192 encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
1193 p = reserve_space(xdr, 12);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001194 *p++ = cpu_to_be32(2);
1195 *p++ = cpu_to_be32(bm0);
Benny Halevy34558512009-08-14 17:19:30 +03001196 *p = cpu_to_be32(bm1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001197}
1198
Fred Isamandae100c2011-07-30 20:52:37 -04001199static void
1200encode_getattr_three(struct xdr_stream *xdr,
1201 uint32_t bm0, uint32_t bm1, uint32_t bm2,
1202 struct compound_hdr *hdr)
1203{
1204 __be32 *p;
1205
Trond Myklebustab19b482012-03-04 18:13:57 -05001206 encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
Fred Isamandae100c2011-07-30 20:52:37 -04001207 if (bm2) {
1208 p = reserve_space(xdr, 16);
1209 *p++ = cpu_to_be32(3);
1210 *p++ = cpu_to_be32(bm0);
1211 *p++ = cpu_to_be32(bm1);
1212 *p = cpu_to_be32(bm2);
1213 } else if (bm1) {
1214 p = reserve_space(xdr, 12);
1215 *p++ = cpu_to_be32(2);
1216 *p++ = cpu_to_be32(bm0);
1217 *p = cpu_to_be32(bm1);
1218 } else {
1219 p = reserve_space(xdr, 8);
1220 *p++ = cpu_to_be32(1);
1221 *p = cpu_to_be32(bm0);
1222 }
Fred Isamandae100c2011-07-30 20:52:37 -04001223}
1224
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001225static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001226{
David Quigleya09df2c2013-05-22 12:50:41 -04001227 encode_getattr_three(xdr, bitmask[0] & nfs4_fattr_bitmap[0],
1228 bitmask[1] & nfs4_fattr_bitmap[1],
1229 bitmask[2] & nfs4_fattr_bitmap[2],
1230 hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001231}
1232
Andy Adamson88034c32012-05-23 05:02:34 -04001233static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask,
Trond Myklebust1549210f2012-06-05 09:16:47 -04001234 const u32 *open_bitmap,
Andy Adamson88034c32012-05-23 05:02:34 -04001235 struct compound_hdr *hdr)
1236{
1237 encode_getattr_three(xdr,
Trond Myklebust1549210f2012-06-05 09:16:47 -04001238 bitmask[0] & open_bitmap[0],
1239 bitmask[1] & open_bitmap[1],
1240 bitmask[2] & open_bitmap[2],
Andy Adamson88034c32012-05-23 05:02:34 -04001241 hdr);
1242}
1243
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001244static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001245{
Fred Isamandae100c2011-07-30 20:52:37 -04001246 encode_getattr_three(xdr,
1247 bitmask[0] & nfs4_fsinfo_bitmap[0],
1248 bitmask[1] & nfs4_fsinfo_bitmap[1],
1249 bitmask[2] & nfs4_fsinfo_bitmap[2],
1250 hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001251}
1252
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001253static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
Manoj Naik830b8e32006-06-09 09:34:25 -04001254{
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001255 encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0],
1256 bitmask[1] & nfs4_fs_locations_bitmap[1], hdr);
Manoj Naik830b8e32006-06-09 09:34:25 -04001257}
1258
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001259static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001260{
Trond Myklebustab19b482012-03-04 18:13:57 -05001261 encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001262}
1263
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001264static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001265{
Trond Myklebustab19b482012-03-04 18:13:57 -05001266 encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr);
Trond Myklebust6fdfb0bc2012-03-04 18:13:57 -05001267 encode_string(xdr, name->len, name->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001268}
1269
Trond Myklebust911d1aa2006-01-03 09:55:16 +01001270static inline int nfs4_lock_type(struct file_lock *fl, int block)
1271{
Jeff Laytonf44106e2012-07-23 15:49:56 -04001272 if (fl->fl_type == F_RDLCK)
Trond Myklebust911d1aa2006-01-03 09:55:16 +01001273 return block ? NFS4_READW_LT : NFS4_READ_LT;
1274 return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT;
1275}
1276
1277static inline uint64_t nfs4_lock_length(struct file_lock *fl)
1278{
1279 if (fl->fl_end == OFFSET_MAX)
1280 return ~(uint64_t)0;
1281 return fl->fl_end - fl->fl_start + 1;
1282}
1283
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001284static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner)
1285{
1286 __be32 *p;
1287
Trond Myklebustd035c362010-12-21 10:45:27 -05001288 p = reserve_space(xdr, 32);
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001289 p = xdr_encode_hyper(p, lowner->clientid);
Trond Myklebustd035c362010-12-21 10:45:27 -05001290 *p++ = cpu_to_be32(20);
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001291 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
Trond Myklebustd035c362010-12-21 10:45:27 -05001292 *p++ = cpu_to_be32(lowner->s_dev);
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001293 xdr_encode_hyper(p, lowner->id);
1294}
1295
Linus Torvalds1da177e2005-04-16 15:20:36 -07001296/*
1297 * opcode,type,reclaim,offset,length,new_lock_owner = 32
1298 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
1299 */
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001300static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001301{
Al Viro8687b632006-10-19 23:28:48 -07001302 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001303
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001304 encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr);
1305 p = reserve_space(xdr, 28);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001306 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block));
1307 *p++ = cpu_to_be32(args->reclaim);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001308 p = xdr_encode_hyper(p, args->fl->fl_start);
1309 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
Benny Halevy34558512009-08-14 17:19:30 +03001310 *p = cpu_to_be32(args->new_lock_owner);
Trond Myklebust911d1aa2006-01-03 09:55:16 +01001311 if (args->new_lock_owner){
Trond Myklebust4ade9822012-03-04 18:13:57 -05001312 encode_nfs4_seqid(xdr, args->open_seqid);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001313 encode_nfs4_stateid(xdr, args->open_stateid);
Trond Myklebust4ade9822012-03-04 18:13:57 -05001314 encode_nfs4_seqid(xdr, args->lock_seqid);
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001315 encode_lockowner(xdr, &args->lock_owner);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001316 }
1317 else {
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001318 encode_nfs4_stateid(xdr, args->lock_stateid);
Trond Myklebust4ade9822012-03-04 18:13:57 -05001319 encode_nfs4_seqid(xdr, args->lock_seqid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001320 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001321}
1322
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001323static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001324{
Al Viro8687b632006-10-19 23:28:48 -07001325 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001326
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001327 encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr);
1328 p = reserve_space(xdr, 20);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001329 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
Benny Halevyb95be5a2009-08-14 17:19:01 +03001330 p = xdr_encode_hyper(p, args->fl->fl_start);
1331 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001332 encode_lockowner(xdr, &args->lock_owner);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001333}
1334
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001335static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001336{
Al Viro8687b632006-10-19 23:28:48 -07001337 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001338
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001339 encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr);
1340 encode_uint32(xdr, nfs4_lock_type(args->fl, 0));
Trond Myklebust4ade9822012-03-04 18:13:57 -05001341 encode_nfs4_seqid(xdr, args->seqid);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001342 encode_nfs4_stateid(xdr, args->stateid);
1343 p = reserve_space(xdr, 16);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001344 p = xdr_encode_hyper(p, args->fl->fl_start);
Benny Halevy34558512009-08-14 17:19:30 +03001345 xdr_encode_hyper(p, nfs4_lock_length(args->fl));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001346}
1347
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04001348static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr)
1349{
Trond Myklebustab19b482012-03-04 18:13:57 -05001350 encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04001351 encode_lockowner(xdr, lowner);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04001352}
1353
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001354static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355{
Trond Myklebustab19b482012-03-04 18:13:57 -05001356 encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr);
Trond Myklebust6fdfb0bc2012-03-04 18:13:57 -05001357 encode_string(xdr, name->len, name->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001358}
1359
Trond Myklebustdc0b0272008-12-23 15:21:56 -05001360static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361{
Al Viro8687b632006-10-19 23:28:48 -07001362 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001363
Benny Halevy13c65ce2009-08-14 17:19:25 +03001364 p = reserve_space(xdr, 8);
Trond Myklebustdc0b0272008-12-23 15:21:56 -05001365 switch (fmode & (FMODE_READ|FMODE_WRITE)) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001366 case FMODE_READ:
Benny Halevye75bc1c2009-08-14 17:18:54 +03001367 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ);
Andy Adamson05d564f2008-12-23 16:06:15 -05001368 break;
1369 case FMODE_WRITE:
Benny Halevye75bc1c2009-08-14 17:18:54 +03001370 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001371 break;
1372 case FMODE_READ|FMODE_WRITE:
Benny Halevye75bc1c2009-08-14 17:18:54 +03001373 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH);
Andy Adamson05d564f2008-12-23 16:06:15 -05001374 break;
1375 default:
Benny Halevye75bc1c2009-08-14 17:18:54 +03001376 *p++ = cpu_to_be32(0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377 }
Benny Halevy34558512009-08-14 17:19:30 +03001378 *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379}
1380
1381static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1382{
Al Viro8687b632006-10-19 23:28:48 -07001383 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384 /*
1385 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1386 * owner 4 = 32
1387 */
Trond Myklebust4ade9822012-03-04 18:13:57 -05001388 encode_nfs4_seqid(xdr, arg->seqid);
Trond Myklebustdc0b0272008-12-23 15:21:56 -05001389 encode_share_access(xdr, arg->fmode);
Trond Myklebust95b72eb2012-04-20 19:24:51 -04001390 p = reserve_space(xdr, 36);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001391 p = xdr_encode_hyper(p, arg->clientid);
Trond Myklebust95b72eb2012-04-20 19:24:51 -04001392 *p++ = cpu_to_be32(24);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001393 p = xdr_encode_opaque_fixed(p, "open id:", 8);
Trond Myklebustd035c362010-12-21 10:45:27 -05001394 *p++ = cpu_to_be32(arg->server->s_dev);
Trond Myklebust95b72eb2012-04-20 19:24:51 -04001395 *p++ = cpu_to_be32(arg->id.uniquifier);
1396 xdr_encode_hyper(p, arg->id.create_time);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001397}
1398
1399static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1400{
Trond Myklebust549b19c2013-04-16 18:42:34 -04001401 struct iattr dummy;
Al Viro8687b632006-10-19 23:28:48 -07001402 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001403
Benny Halevy13c65ce2009-08-14 17:19:25 +03001404 p = reserve_space(xdr, 4);
Trond Myklebust549b19c2013-04-16 18:42:34 -04001405 switch(arg->createmode) {
1406 case NFS4_CREATE_UNCHECKED:
Benny Halevy34558512009-08-14 17:19:30 +03001407 *p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
David Quigleyaa9c2662013-05-22 12:50:44 -04001408 encode_attrs(xdr, arg->u.attrs, arg->label, arg->server);
Andy Adamson05d564f2008-12-23 16:06:15 -05001409 break;
Trond Myklebust549b19c2013-04-16 18:42:34 -04001410 case NFS4_CREATE_GUARDED:
1411 *p = cpu_to_be32(NFS4_CREATE_GUARDED);
David Quigleyaa9c2662013-05-22 12:50:44 -04001412 encode_attrs(xdr, arg->u.attrs, arg->label, arg->server);
Trond Myklebust549b19c2013-04-16 18:42:34 -04001413 break;
1414 case NFS4_CREATE_EXCLUSIVE:
1415 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
1416 encode_nfs4_verifier(xdr, &arg->u.verifier);
1417 break;
1418 case NFS4_CREATE_EXCLUSIVE4_1:
1419 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1);
1420 encode_nfs4_verifier(xdr, &arg->u.verifier);
1421 dummy.ia_valid = 0;
David Quigleyaa9c2662013-05-22 12:50:44 -04001422 encode_attrs(xdr, &dummy, arg->label, arg->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001423 }
1424}
1425
1426static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1427{
Al Viro8687b632006-10-19 23:28:48 -07001428 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001429
Benny Halevy13c65ce2009-08-14 17:19:25 +03001430 p = reserve_space(xdr, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001431 switch (arg->open_flags & O_CREAT) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001432 case 0:
Benny Halevy34558512009-08-14 17:19:30 +03001433 *p = cpu_to_be32(NFS4_OPEN_NOCREATE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001434 break;
1435 default:
Benny Halevy34558512009-08-14 17:19:30 +03001436 *p = cpu_to_be32(NFS4_OPEN_CREATE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001437 encode_createmode(xdr, arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001438 }
1439}
1440
Trond Myklebustbd7bf9d2008-12-23 15:21:53 -05001441static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001442{
Al Viro8687b632006-10-19 23:28:48 -07001443 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001444
Benny Halevy13c65ce2009-08-14 17:19:25 +03001445 p = reserve_space(xdr, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001446 switch (delegation_type) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001447 case 0:
Benny Halevy34558512009-08-14 17:19:30 +03001448 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001449 break;
1450 case FMODE_READ:
Benny Halevy34558512009-08-14 17:19:30 +03001451 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ);
Andy Adamson05d564f2008-12-23 16:06:15 -05001452 break;
1453 case FMODE_WRITE|FMODE_READ:
Benny Halevy34558512009-08-14 17:19:30 +03001454 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001455 break;
1456 default:
1457 BUG();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001458 }
1459}
1460
1461static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
1462{
Al Viro8687b632006-10-19 23:28:48 -07001463 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001464
Benny Halevy13c65ce2009-08-14 17:19:25 +03001465 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001466 *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001467 encode_string(xdr, name->len, name->name);
1468}
1469
Trond Myklebustbd7bf9d2008-12-23 15:21:53 -05001470static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001471{
Al Viro8687b632006-10-19 23:28:48 -07001472 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001473
Benny Halevy13c65ce2009-08-14 17:19:25 +03001474 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001475 *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001476 encode_delegation_type(xdr, type);
1477}
1478
1479static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
1480{
Al Viro8687b632006-10-19 23:28:48 -07001481 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001483 p = reserve_space(xdr, 4);
1484 *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
1485 encode_nfs4_stateid(xdr, stateid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486 encode_string(xdr, name->len, name->name);
1487}
1488
Trond Myklebustd9fc6612013-03-15 15:39:06 -04001489static inline void encode_claim_fh(struct xdr_stream *xdr)
1490{
1491 __be32 *p;
1492
1493 p = reserve_space(xdr, 4);
1494 *p = cpu_to_be32(NFS4_OPEN_CLAIM_FH);
1495}
1496
1497static inline void encode_claim_delegate_cur_fh(struct xdr_stream *xdr, const nfs4_stateid *stateid)
1498{
1499 __be32 *p;
1500
1501 p = reserve_space(xdr, 4);
1502 *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEG_CUR_FH);
1503 encode_nfs4_stateid(xdr, stateid);
1504}
1505
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001506static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001507{
Trond Myklebustab19b482012-03-04 18:13:57 -05001508 encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001509 encode_openhdr(xdr, arg);
1510 encode_opentype(xdr, arg);
1511 switch (arg->claim) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001512 case NFS4_OPEN_CLAIM_NULL:
1513 encode_claim_null(xdr, arg->name);
1514 break;
1515 case NFS4_OPEN_CLAIM_PREVIOUS:
1516 encode_claim_previous(xdr, arg->u.delegation_type);
1517 break;
1518 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
1519 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
1520 break;
Trond Myklebustd9fc6612013-03-15 15:39:06 -04001521 case NFS4_OPEN_CLAIM_FH:
1522 encode_claim_fh(xdr);
1523 break;
1524 case NFS4_OPEN_CLAIM_DELEG_CUR_FH:
1525 encode_claim_delegate_cur_fh(xdr, &arg->u.delegation);
1526 break;
Andy Adamson05d564f2008-12-23 16:06:15 -05001527 default:
1528 BUG();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001529 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001530}
1531
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001532static 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 -07001533{
Trond Myklebustab19b482012-03-04 18:13:57 -05001534 encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001535 encode_nfs4_stateid(xdr, arg->stateid);
Trond Myklebust4ade9822012-03-04 18:13:57 -05001536 encode_nfs4_seqid(xdr, arg->seqid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001537}
1538
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001539static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001540{
Trond Myklebustab19b482012-03-04 18:13:57 -05001541 encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001542 encode_nfs4_stateid(xdr, arg->stateid);
Trond Myklebust4ade9822012-03-04 18:13:57 -05001543 encode_nfs4_seqid(xdr, arg->seqid);
Trond Myklebustdc0b0272008-12-23 15:21:56 -05001544 encode_share_access(xdr, arg->fmode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001545}
1546
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001547static void
Andy Adamsond0179312008-12-23 16:06:17 -05001548encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001549{
Trond Myklebustab19b482012-03-04 18:13:57 -05001550 encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr);
Trond Myklebust6fdfb0bc2012-03-04 18:13:57 -05001551 encode_string(xdr, fh->size, fh->data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001552}
1553
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001554static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001555{
Trond Myklebustab19b482012-03-04 18:13:57 -05001556 encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001557}
1558
Anna Schumaker3c6b8992014-05-06 09:12:24 -04001559static void encode_read(struct xdr_stream *xdr, const struct nfs_pgio_args *args,
1560 struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001561{
Al Viro8687b632006-10-19 23:28:48 -07001562 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001563
Trond Myklebustab19b482012-03-04 18:13:57 -05001564 encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr);
Trond Myklebust9b206142013-03-17 15:52:00 -04001565 encode_nfs4_stateid(xdr, &args->stateid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001566
Benny Halevy13c65ce2009-08-14 17:19:25 +03001567 p = reserve_space(xdr, 12);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001568 p = xdr_encode_hyper(p, args->offset);
Benny Halevy34558512009-08-14 17:19:30 +03001569 *p = cpu_to_be32(args->count);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001570}
1571
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001572static 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 -07001573{
David Quigleyaa9c2662013-05-22 12:50:44 -04001574 uint32_t attrs[3] = {
Trond Myklebust28331a42011-04-27 13:47:52 -04001575 FATTR4_WORD0_RDATTR_ERROR,
1576 FATTR4_WORD1_MOUNTED_ON_FILEID,
1577 };
Trond Myklebust6f7a35b2010-10-24 12:11:42 -04001578 uint32_t dircount = readdir->count >> 1;
Chuck Levercd937102012-03-02 17:14:31 -05001579 __be32 *p, verf[2];
Trond Myklebustd204c5d2013-11-04 13:23:59 -05001580 uint32_t attrlen = 0;
1581 unsigned int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001582
Bryan Schumaker82f2e542010-10-21 16:33:18 -04001583 if (readdir->plus) {
1584 attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE|
Trond Myklebust28331a42011-04-27 13:47:52 -04001585 FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID;
Bryan Schumaker82f2e542010-10-21 16:33:18 -04001586 attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER|
1587 FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV|
1588 FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS|
1589 FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
Trond Myklebustd204c5d2013-11-04 13:23:59 -05001590 attrs[2] |= FATTR4_WORD2_SECURITY_LABEL;
Trond Myklebust6f7a35b2010-10-24 12:11:42 -04001591 dircount >>= 1;
Bryan Schumaker82f2e542010-10-21 16:33:18 -04001592 }
Trond Myklebust28331a42011-04-27 13:47:52 -04001593 /* Use mounted_on_fileid only if the server supports it */
1594 if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID))
1595 attrs[0] |= FATTR4_WORD0_FILEID;
Trond Myklebustd204c5d2013-11-04 13:23:59 -05001596 for (i = 0; i < ARRAY_SIZE(attrs); i++) {
1597 attrs[i] &= readdir->bitmask[i];
1598 if (attrs[i] != 0)
1599 attrlen = i+1;
1600 }
Bryan Schumaker82f2e542010-10-21 16:33:18 -04001601
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001602 encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr);
Trond Myklebustff2eb682012-03-05 11:40:12 -05001603 encode_uint64(xdr, readdir->cookie);
Chuck Levercd937102012-03-02 17:14:31 -05001604 encode_nfs4_verifier(xdr, &readdir->verifier);
Trond Myklebustd204c5d2013-11-04 13:23:59 -05001605 p = reserve_space(xdr, 12 + (attrlen << 2));
Trond Myklebust6f7a35b2010-10-24 12:11:42 -04001606 *p++ = cpu_to_be32(dircount);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001607 *p++ = cpu_to_be32(readdir->count);
Trond Myklebustd204c5d2013-11-04 13:23:59 -05001608 *p++ = cpu_to_be32(attrlen);
1609 for (i = 0; i < attrlen; i++)
1610 *p++ = cpu_to_be32(attrs[i]);
Chuck Levercd937102012-03-02 17:14:31 -05001611 memcpy(verf, readdir->verifier.data, sizeof(verf));
David Quigleyaa9c2662013-05-22 12:50:44 -04001612
1613 dprintk("%s: cookie = %llu, verifier = %08x:%08x, bitmap = %08x:%08x:%08x\n",
Fred Isaman44109242008-04-02 15:21:15 +03001614 __func__,
Trond Myklebusteadf4592005-06-22 17:16:39 +00001615 (unsigned long long)readdir->cookie,
Chuck Levercd937102012-03-02 17:14:31 -05001616 verf[0], verf[1],
Trond Myklebusteadf4592005-06-22 17:16:39 +00001617 attrs[0] & readdir->bitmask[0],
David Quigleyaa9c2662013-05-22 12:50:44 -04001618 attrs[1] & readdir->bitmask[1],
1619 attrs[2] & readdir->bitmask[2]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001620}
1621
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001622static 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 -07001623{
Trond Myklebustab19b482012-03-04 18:13:57 -05001624 encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001625}
1626
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001627static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001628{
Trond Myklebustab19b482012-03-04 18:13:57 -05001629 encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr);
Trond Myklebust6fdfb0bc2012-03-04 18:13:57 -05001630 encode_string(xdr, name->len, name->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001631}
1632
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001633static 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 -07001634{
Trond Myklebustab19b482012-03-04 18:13:57 -05001635 encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr);
Benny Halevy811652b2009-08-14 17:19:34 +03001636 encode_string(xdr, oldname->len, oldname->name);
1637 encode_string(xdr, newname->len, newname->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001638}
1639
Chuck Leverbb4dae52012-03-01 17:01:48 -05001640static void encode_renew(struct xdr_stream *xdr, clientid4 clid,
1641 struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001642{
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001643 encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr);
Trond Myklebustff2eb682012-03-05 11:40:12 -05001644 encode_uint64(xdr, clid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001645}
1646
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001647static void
Andy Adamsond0179312008-12-23 16:06:17 -05001648encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04001649{
Trond Myklebustab19b482012-03-04 18:13:57 -05001650 encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr);
Trond Myklebust56ae19f2005-10-27 22:12:40 -04001651}
1652
Chuck Lever9f06c712010-12-14 14:59:18 +00001653static void
Andy Adamsond0179312008-12-23 16:06:17 -05001654encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr)
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001655{
Al Viro8687b632006-10-19 23:28:48 -07001656 __be32 *p;
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001657
Trond Myklebustab19b482012-03-04 18:13:57 -05001658 encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001659 encode_nfs4_stateid(xdr, &zero_stateid);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001660 p = reserve_space(xdr, 2*4);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001661 *p++ = cpu_to_be32(1);
Benny Halevy34558512009-08-14 17:19:30 +03001662 *p = cpu_to_be32(FATTR4_WORD0_ACL);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001663 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001664 *p = cpu_to_be32(arg->acl_len);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001665 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001666}
1667
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001668static void
Andy Adamsond0179312008-12-23 16:06:17 -05001669encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001670{
Trond Myklebustab19b482012-03-04 18:13:57 -05001671 encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001672}
1673
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001674static 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 -07001675{
Trond Myklebustab19b482012-03-04 18:13:57 -05001676 encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001677 encode_nfs4_stateid(xdr, &arg->stateid);
David Quigleyaa9c2662013-05-22 12:50:44 -04001678 encode_attrs(xdr, arg->iap, arg->label, server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001679}
1680
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001681static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001682{
Al Viro8687b632006-10-19 23:28:48 -07001683 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001684
Trond Myklebust70019512012-03-04 20:49:32 -05001685 encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr);
Chuck Levercd937102012-03-02 17:14:31 -05001686 encode_nfs4_verifier(xdr, setclientid->sc_verifier);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001687
1688 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001689 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001690 *p = cpu_to_be32(setclientid->sc_prog);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001691 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1692 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001693 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001694 *p = cpu_to_be32(setclientid->sc_cb_ident);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001695}
1696
Trond Myklebustbb8b27e2010-04-16 16:43:06 -04001697static 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 -07001698{
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001699 encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM,
1700 decode_setclientid_confirm_maxsz, hdr);
Trond Myklebustff2eb682012-03-05 11:40:12 -05001701 encode_uint64(xdr, arg->clientid);
Chuck Levercd937102012-03-02 17:14:31 -05001702 encode_nfs4_verifier(xdr, &arg->confirm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001703}
1704
Anna Schumaker3c6b8992014-05-06 09:12:24 -04001705static void encode_write(struct xdr_stream *xdr, const struct nfs_pgio_args *args,
1706 struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001707{
Al Viro8687b632006-10-19 23:28:48 -07001708 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001709
Trond Myklebustab19b482012-03-04 18:13:57 -05001710 encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr);
Trond Myklebust9b206142013-03-17 15:52:00 -04001711 encode_nfs4_stateid(xdr, &args->stateid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001712
Benny Halevy13c65ce2009-08-14 17:19:25 +03001713 p = reserve_space(xdr, 16);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001714 p = xdr_encode_hyper(p, args->offset);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001715 *p++ = cpu_to_be32(args->stable);
Benny Halevy34558512009-08-14 17:19:30 +03001716 *p = cpu_to_be32(args->count);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001717
1718 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719}
1720
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001721static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001722{
Trond Myklebustab19b482012-03-04 18:13:57 -05001723 encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001724 encode_nfs4_stateid(xdr, stateid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001725}
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001726
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00001727static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1728{
Trond Myklebustab19b482012-03-04 18:13:57 -05001729 encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr);
Trond Myklebust6fdfb0bc2012-03-04 18:13:57 -05001730 encode_string(xdr, name->len, name->name);
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00001731}
1732
Benny Halevy99fe60d2009-04-01 09:22:29 -04001733#if defined(CONFIG_NFS_V4_1)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001734/* NFSv4.1 operations */
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -04001735static void encode_bind_conn_to_session(struct xdr_stream *xdr,
1736 struct nfs4_session *session,
1737 struct compound_hdr *hdr)
1738{
1739 __be32 *p;
1740
1741 encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION,
1742 decode_bind_conn_to_session_maxsz, hdr);
1743 encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1744 p = xdr_reserve_space(xdr, 8);
1745 *p++ = cpu_to_be32(NFS4_CDFC4_BACK_OR_BOTH);
1746 *p = 0; /* use_conn_in_rdma_mode = False */
1747}
1748
Weston Andros Adamson2031cd12013-08-13 16:37:32 -04001749static void encode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map)
1750{
1751 unsigned int i;
1752 encode_uint32(xdr, NFS4_OP_MAP_NUM_WORDS);
1753 for (i = 0; i < NFS4_OP_MAP_NUM_WORDS; i++)
1754 encode_uint32(xdr, op_map->u.words[i]);
1755}
1756
Benny Halevy99fe60d2009-04-01 09:22:29 -04001757static void encode_exchange_id(struct xdr_stream *xdr,
1758 struct nfs41_exchange_id_args *args,
1759 struct compound_hdr *hdr)
1760{
1761 __be32 *p;
Jim Reesd751f742012-11-16 18:12:06 -05001762 char impl_name[IMPL_NAME_LIMIT];
Weston Andros Adamsondb8ac8b2012-02-17 15:20:24 -05001763 int len = 0;
Benny Halevy99fe60d2009-04-01 09:22:29 -04001764
Trond Myklebust70019512012-03-04 20:49:32 -05001765 encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr);
Chuck Levercd937102012-03-02 17:14:31 -05001766 encode_nfs4_verifier(xdr, args->verifier);
Benny Halevy99fe60d2009-04-01 09:22:29 -04001767
1768 encode_string(xdr, args->id_len, args->id);
1769
Weston Andros Adamson2031cd12013-08-13 16:37:32 -04001770 encode_uint32(xdr, args->flags);
1771 encode_uint32(xdr, args->state_protect.how);
1772
1773 switch (args->state_protect.how) {
1774 case SP4_NONE:
1775 break;
1776 case SP4_MACH_CRED:
1777 encode_op_map(xdr, &args->state_protect.enforce);
1778 encode_op_map(xdr, &args->state_protect.allow);
1779 break;
1780 default:
1781 WARN_ON_ONCE(1);
1782 break;
1783 }
Weston Andros Adamsondb8ac8b2012-02-17 15:20:24 -05001784
1785 if (send_implementation_id &&
1786 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 &&
1787 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN)
Jim Reesd751f742012-11-16 18:12:06 -05001788 <= sizeof(impl_name) + 1)
Weston Andros Adamsondb8ac8b2012-02-17 15:20:24 -05001789 len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s",
1790 utsname()->sysname, utsname()->release,
1791 utsname()->version, utsname()->machine);
1792
1793 if (len > 0) {
Weston Andros Adamson2031cd12013-08-13 16:37:32 -04001794 encode_uint32(xdr, 1); /* implementation id array length=1 */
Weston Andros Adamsondb8ac8b2012-02-17 15:20:24 -05001795
1796 encode_string(xdr,
1797 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1,
1798 CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN);
1799 encode_string(xdr, len, impl_name);
1800 /* just send zeros for nii_date - the date is in nii_name */
1801 p = reserve_space(xdr, 12);
1802 p = xdr_encode_hyper(p, 0);
1803 *p = cpu_to_be32(0);
1804 } else
Weston Andros Adamson2031cd12013-08-13 16:37:32 -04001805 encode_uint32(xdr, 0); /* implementation id array length=0 */
Benny Halevy99fe60d2009-04-01 09:22:29 -04001806}
Andy Adamsonfc931582009-04-01 09:22:31 -04001807
1808static void encode_create_session(struct xdr_stream *xdr,
1809 struct nfs41_create_session_args *args,
1810 struct compound_hdr *hdr)
1811{
1812 __be32 *p;
1813 char machine_name[NFS4_MAX_MACHINE_NAME_LEN];
1814 uint32_t len;
1815 struct nfs_client *clp = args->client;
Chuck Leverf0920752012-05-21 22:45:41 -04001816 struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);
Mike Sager8e0d46e2009-12-17 12:06:26 -05001817 u32 max_resp_sz_cached;
1818
1819 /*
1820 * Assumes OPEN is the biggest non-idempotent compound.
1821 * 2 is the verifier.
1822 */
1823 max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE +
1824 RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT;
Andy Adamsonfc931582009-04-01 09:22:31 -04001825
Andy Adamsonfc931582009-04-01 09:22:31 -04001826 len = scnprintf(machine_name, sizeof(machine_name), "%s",
1827 clp->cl_ipaddr);
Benny Halevy42edd692009-08-14 17:19:13 +03001828
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001829 encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr);
1830 p = reserve_space(xdr, 16 + 2*28 + 20 + len + 12);
Andy Adamson114f64b2011-03-09 13:13:45 -05001831 p = xdr_encode_hyper(p, clp->cl_clientid);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001832 *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */
1833 *p++ = cpu_to_be32(args->flags); /*flags */
Andy Adamsonfc931582009-04-01 09:22:31 -04001834
Andy Adamsonfc931582009-04-01 09:22:31 -04001835 /* Fore Channel */
Benny Halevyc9c30dd2011-06-11 17:08:39 -04001836 *p++ = cpu_to_be32(0); /* header padding size */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001837 *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */
1838 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */
Mike Sager8e0d46e2009-12-17 12:06:26 -05001839 *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001840 *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */
1841 *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */
1842 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
Andy Adamsonfc931582009-04-01 09:22:31 -04001843
1844 /* Back Channel */
Benny Halevyc9c30dd2011-06-11 17:08:39 -04001845 *p++ = cpu_to_be32(0); /* header padding size */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001846 *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */
1847 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */
1848 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1849 *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */
1850 *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */
1851 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
Andy Adamsonfc931582009-04-01 09:22:31 -04001852
Benny Halevye75bc1c2009-08-14 17:18:54 +03001853 *p++ = cpu_to_be32(args->cb_program); /* cb_program */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001854 *p++ = cpu_to_be32(1);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001855 *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */
Andy Adamsonfc931582009-04-01 09:22:31 -04001856
1857 /* authsys_parms rfc1831 */
Trond Myklebust17f26b12013-08-21 15:48:42 -04001858 *p++ = cpu_to_be32(nn->boot_time.tv_nsec); /* stamp */
Benny Halevy811652b2009-08-14 17:19:34 +03001859 p = xdr_encode_opaque(p, machine_name, len);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001860 *p++ = cpu_to_be32(0); /* UID */
1861 *p++ = cpu_to_be32(0); /* GID */
Benny Halevy34558512009-08-14 17:19:30 +03001862 *p = cpu_to_be32(0); /* No more gids */
Andy Adamsonfc931582009-04-01 09:22:31 -04001863}
Andy Adamson0f3e66c2009-04-01 09:22:34 -04001864
1865static void encode_destroy_session(struct xdr_stream *xdr,
1866 struct nfs4_session *session,
1867 struct compound_hdr *hdr)
1868{
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001869 encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr);
1870 encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04001871}
Ricardo Labiaga180197532009-12-05 16:08:40 -05001872
Trond Myklebust66245532012-05-25 17:18:09 -04001873static void encode_destroy_clientid(struct xdr_stream *xdr,
1874 uint64_t clientid,
1875 struct compound_hdr *hdr)
1876{
1877 encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr);
1878 encode_uint64(xdr, clientid);
1879}
1880
Ricardo Labiaga180197532009-12-05 16:08:40 -05001881static void encode_reclaim_complete(struct xdr_stream *xdr,
1882 struct nfs41_reclaim_complete_args *args,
1883 struct compound_hdr *hdr)
1884{
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001885 encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr);
1886 encode_uint32(xdr, args->one_fs);
Ricardo Labiaga180197532009-12-05 16:08:40 -05001887}
Benny Halevy99fe60d2009-04-01 09:22:29 -04001888#endif /* CONFIG_NFS_V4_1 */
1889
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001890static void encode_sequence(struct xdr_stream *xdr,
1891 const struct nfs4_sequence_args *args,
1892 struct compound_hdr *hdr)
1893{
1894#if defined(CONFIG_NFS_V4_1)
Trond Myklebust2b2fa712012-11-16 12:58:36 -05001895 struct nfs4_session *session;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001896 struct nfs4_slot_table *tp;
Trond Myklebust2b2fa712012-11-16 12:58:36 -05001897 struct nfs4_slot *slot = args->sa_slot;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001898 __be32 *p;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001899
Trond Myklebust2b2fa712012-11-16 12:58:36 -05001900 tp = slot->table;
1901 session = tp->session;
Chuck Lever3bd23842013-08-09 12:49:19 -04001902 if (!session)
1903 return;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001904
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001905 encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001906
1907 /*
1908 * Sessionid + seqid + slotid + max slotid + cache_this
1909 */
1910 dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
1911 "max_slotid=%d cache_this=%d\n",
1912 __func__,
1913 ((u32 *)session->sess_id.data)[0],
1914 ((u32 *)session->sess_id.data)[1],
1915 ((u32 *)session->sess_id.data)[2],
1916 ((u32 *)session->sess_id.data)[3],
Trond Myklebust2b2fa712012-11-16 12:58:36 -05001917 slot->seq_nr, slot->slot_nr,
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001918 tp->highest_used_slotid, args->sa_cache_this);
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001919 p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001920 p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001921 *p++ = cpu_to_be32(slot->seq_nr);
Trond Myklebust2b2fa712012-11-16 12:58:36 -05001922 *p++ = cpu_to_be32(slot->slot_nr);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001923 *p++ = cpu_to_be32(tp->highest_used_slotid);
Benny Halevy34558512009-08-14 17:19:30 +03001924 *p = cpu_to_be32(args->sa_cache_this);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001925#endif /* CONFIG_NFS_V4_1 */
1926}
1927
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001928#ifdef CONFIG_NFS_V4_1
1929static void
Andy Adamson7f11d8d2011-07-30 20:52:35 -04001930encode_getdevicelist(struct xdr_stream *xdr,
1931 const struct nfs4_getdevicelist_args *args,
1932 struct compound_hdr *hdr)
1933{
1934 __be32 *p;
1935 nfs4_verifier dummy = {
1936 .data = "dummmmmy",
1937 };
1938
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001939 encode_op_hdr(xdr, OP_GETDEVICELIST, decode_getdevicelist_maxsz, hdr);
1940 p = reserve_space(xdr, 16);
Andy Adamson7f11d8d2011-07-30 20:52:35 -04001941 *p++ = cpu_to_be32(args->layoutclass);
1942 *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM);
1943 xdr_encode_hyper(p, 0ULL); /* cookie */
1944 encode_nfs4_verifier(xdr, &dummy);
Andy Adamson7f11d8d2011-07-30 20:52:35 -04001945}
1946
1947static void
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001948encode_getdeviceinfo(struct xdr_stream *xdr,
1949 const struct nfs4_getdeviceinfo_args *args,
1950 struct compound_hdr *hdr)
1951{
1952 __be32 *p;
1953
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001954 encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr);
1955 p = reserve_space(xdr, 12 + NFS4_DEVICEID4_SIZE);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001956 p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data,
1957 NFS4_DEVICEID4_SIZE);
1958 *p++ = cpu_to_be32(args->pdev->layout_type);
Andy Adamsonf1c097b2013-06-25 19:02:53 -04001959 *p++ = cpu_to_be32(args->pdev->maxcount); /* gdia_maxcount */
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001960 *p++ = cpu_to_be32(0); /* bitmap length 0 */
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001961}
1962
1963static void
1964encode_layoutget(struct xdr_stream *xdr,
1965 const struct nfs4_layoutget_args *args,
1966 struct compound_hdr *hdr)
1967{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001968 __be32 *p;
1969
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001970 encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr);
1971 p = reserve_space(xdr, 36);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001972 *p++ = cpu_to_be32(0); /* Signal layout available */
1973 *p++ = cpu_to_be32(args->type);
1974 *p++ = cpu_to_be32(args->range.iomode);
1975 p = xdr_encode_hyper(p, args->range.offset);
1976 p = xdr_encode_hyper(p, args->range.length);
1977 p = xdr_encode_hyper(p, args->minlength);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001978 encode_nfs4_stateid(xdr, &args->stateid);
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001979 encode_uint32(xdr, args->maxcount);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001980
1981 dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n",
1982 __func__,
1983 args->type,
1984 args->range.iomode,
1985 (unsigned long)args->range.offset,
1986 (unsigned long)args->range.length,
1987 args->maxcount);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001988}
Andy Adamson863a3c62011-03-23 13:27:54 +00001989
1990static int
1991encode_layoutcommit(struct xdr_stream *xdr,
Benny Halevyac7db722011-05-22 19:53:48 +03001992 struct inode *inode,
Andy Adamson863a3c62011-03-23 13:27:54 +00001993 const struct nfs4_layoutcommit_args *args,
1994 struct compound_hdr *hdr)
1995{
1996 __be32 *p;
1997
1998 dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten,
1999 NFS_SERVER(args->inode)->pnfs_curr_ld->id);
2000
Trond Myklebust475d4ba2012-03-05 11:27:16 -05002001 encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr);
2002 p = reserve_space(xdr, 20);
Andy Adamson863a3c62011-03-23 13:27:54 +00002003 /* Only whole file layouts */
2004 p = xdr_encode_hyper(p, 0); /* offset */
Peng Tao3557c6c2011-07-30 20:52:34 -04002005 p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */
Trond Myklebustea9d23f2012-03-04 18:13:56 -05002006 *p = cpu_to_be32(0); /* reclaim */
2007 encode_nfs4_stateid(xdr, &args->stateid);
2008 p = reserve_space(xdr, 20);
Andy Adamson863a3c62011-03-23 13:27:54 +00002009 *p++ = cpu_to_be32(1); /* newoffset = TRUE */
2010 p = xdr_encode_hyper(p, args->lastbytewritten);
2011 *p++ = cpu_to_be32(0); /* Never send time_modify_changed */
2012 *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */
Benny Halevyac7db722011-05-22 19:53:48 +03002013
2014 if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit)
2015 NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit(
2016 NFS_I(inode)->layout, xdr, args);
Trond Myklebust475d4ba2012-03-05 11:27:16 -05002017 else
2018 encode_uint32(xdr, 0); /* no layout-type payload */
Andy Adamson863a3c62011-03-23 13:27:54 +00002019
Andy Adamson863a3c62011-03-23 13:27:54 +00002020 return 0;
2021}
Benny Halevycbe82602011-05-22 19:52:37 +03002022
2023static void
2024encode_layoutreturn(struct xdr_stream *xdr,
2025 const struct nfs4_layoutreturn_args *args,
2026 struct compound_hdr *hdr)
2027{
2028 __be32 *p;
2029
Trond Myklebust475d4ba2012-03-05 11:27:16 -05002030 encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr);
2031 p = reserve_space(xdr, 16);
Benny Halevycbe82602011-05-22 19:52:37 +03002032 *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */
2033 *p++ = cpu_to_be32(args->layout_type);
2034 *p++ = cpu_to_be32(IOMODE_ANY);
2035 *p = cpu_to_be32(RETURN_FILE);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05002036 p = reserve_space(xdr, 16);
Benny Halevycbe82602011-05-22 19:52:37 +03002037 p = xdr_encode_hyper(p, 0);
2038 p = xdr_encode_hyper(p, NFS4_MAX_UINT64);
2039 spin_lock(&args->inode->i_lock);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05002040 encode_nfs4_stateid(xdr, &args->stateid);
Benny Halevycbe82602011-05-22 19:52:37 +03002041 spin_unlock(&args->inode->i_lock);
Andy Adamson04a55542011-05-22 19:53:10 +03002042 if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) {
2043 NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn(
2044 NFS_I(args->inode)->layout, xdr, args);
Trond Myklebust475d4ba2012-03-05 11:27:16 -05002045 } else
2046 encode_uint32(xdr, 0);
Benny Halevycbe82602011-05-22 19:52:37 +03002047}
Bryan Schumakerfca78d62011-06-02 14:59:07 -04002048
2049static int
2050encode_secinfo_no_name(struct xdr_stream *xdr,
2051 const struct nfs41_secinfo_no_name_args *args,
2052 struct compound_hdr *hdr)
2053{
Trond Myklebust475d4ba2012-03-05 11:27:16 -05002054 encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr);
2055 encode_uint32(xdr, args->style);
Bryan Schumakerfca78d62011-06-02 14:59:07 -04002056 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{
Trond Myklebust475d4ba2012-03-05 11:27:16 -05002063 encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr);
2064 encode_uint32(xdr, 1);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05002065 encode_nfs4_stateid(xdr, args->stateid);
Bryan Schumaker7d974792011-06-02 14:59:08 -04002066}
Bryan Schumaker9aeda352011-06-02 14:59:09 -04002067
2068static void encode_free_stateid(struct xdr_stream *xdr,
2069 struct nfs41_free_stateid_args *args,
2070 struct compound_hdr *hdr)
2071{
Trond Myklebustab19b482012-03-04 18:13:57 -05002072 encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr);
Trond Myklebust7c1d5fa2013-05-03 14:40:01 -04002073 encode_nfs4_stateid(xdr, &args->stateid);
Bryan Schumaker9aeda352011-06-02 14:59:09 -04002074}
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002075#endif /* CONFIG_NFS_V4_1 */
2076
Linus Torvalds1da177e2005-04-16 15:20:36 -07002077/*
2078 * END OF "GENERIC" ENCODE ROUTINES.
2079 */
2080
Benny Halevy66cc0422009-04-01 09:22:10 -04002081static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
2082{
2083#if defined(CONFIG_NFS_V4_1)
Chuck Lever3bd23842013-08-09 12:49:19 -04002084 struct nfs4_session *session = args->sa_slot->table->session;
2085 if (session)
2086 return session->clp->cl_mvops->minor_version;
Benny Halevy66cc0422009-04-01 09:22:10 -04002087#endif /* CONFIG_NFS_V4_1 */
2088 return 0;
2089}
2090
Linus Torvalds1da177e2005-04-16 15:20:36 -07002091/*
2092 * Encode an ACCESS request
2093 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002094static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr,
2095 const struct nfs4_accessargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002096{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002097 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002098 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002099 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002100
Chuck Lever9f06c712010-12-14 14:59:18 +00002101 encode_compound_hdr(xdr, req, &hdr);
2102 encode_sequence(xdr, &args->seq_args, &hdr);
2103 encode_putfh(xdr, args->fh, &hdr);
2104 encode_access(xdr, args->access, &hdr);
2105 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002106 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002107}
2108
2109/*
2110 * Encode LOOKUP request
2111 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002112static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr,
2113 const struct nfs4_lookup_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002114{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002115 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002116 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002117 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002118
Chuck Lever9f06c712010-12-14 14:59:18 +00002119 encode_compound_hdr(xdr, req, &hdr);
2120 encode_sequence(xdr, &args->seq_args, &hdr);
2121 encode_putfh(xdr, args->dir_fh, &hdr);
2122 encode_lookup(xdr, args->name, &hdr);
2123 encode_getfh(xdr, &hdr);
2124 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002125 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002126}
2127
2128/*
2129 * Encode LOOKUP_ROOT request
2130 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002131static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req,
2132 struct xdr_stream *xdr,
2133 const struct nfs4_lookup_root_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002134{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002135 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002136 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002137 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002138
Chuck Lever9f06c712010-12-14 14:59:18 +00002139 encode_compound_hdr(xdr, req, &hdr);
2140 encode_sequence(xdr, &args->seq_args, &hdr);
2141 encode_putrootfh(xdr, &hdr);
2142 encode_getfh(xdr, &hdr);
2143 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002144 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002145}
2146
2147/*
2148 * Encode REMOVE request
2149 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002150static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr,
2151 const struct nfs_removeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002152{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002153 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002154 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002155 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002156
Chuck Lever9f06c712010-12-14 14:59:18 +00002157 encode_compound_hdr(xdr, req, &hdr);
2158 encode_sequence(xdr, &args->seq_args, &hdr);
2159 encode_putfh(xdr, args->fh, &hdr);
2160 encode_remove(xdr, &args->name, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002161 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002162}
2163
2164/*
2165 * Encode RENAME request
2166 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002167static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr,
2168 const struct nfs_renameargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002169{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002170 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002171 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002172 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002173
Chuck Lever9f06c712010-12-14 14:59:18 +00002174 encode_compound_hdr(xdr, req, &hdr);
2175 encode_sequence(xdr, &args->seq_args, &hdr);
2176 encode_putfh(xdr, args->old_dir, &hdr);
2177 encode_savefh(xdr, &hdr);
2178 encode_putfh(xdr, args->new_dir, &hdr);
2179 encode_rename(xdr, args->old_name, args->new_name, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002180 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002181}
2182
2183/*
2184 * Encode LINK request
2185 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002186static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr,
2187 const struct nfs4_link_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002188{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002189 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002190 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002191 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002192
Chuck Lever9f06c712010-12-14 14:59:18 +00002193 encode_compound_hdr(xdr, req, &hdr);
2194 encode_sequence(xdr, &args->seq_args, &hdr);
2195 encode_putfh(xdr, args->fh, &hdr);
2196 encode_savefh(xdr, &hdr);
2197 encode_putfh(xdr, args->dir_fh, &hdr);
2198 encode_link(xdr, args->name, &hdr);
Chuck Lever9f06c712010-12-14 14:59:18 +00002199 encode_restorefh(xdr, &hdr);
2200 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002201 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002202}
2203
2204/*
2205 * Encode CREATE request
2206 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002207static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr,
2208 const struct nfs4_create_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002209{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002210 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002211 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002212 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002213
Chuck Lever9f06c712010-12-14 14:59:18 +00002214 encode_compound_hdr(xdr, req, &hdr);
2215 encode_sequence(xdr, &args->seq_args, &hdr);
2216 encode_putfh(xdr, args->dir_fh, &hdr);
Chuck Lever9f06c712010-12-14 14:59:18 +00002217 encode_create(xdr, args, &hdr);
2218 encode_getfh(xdr, &hdr);
2219 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002220 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002221}
2222
2223/*
2224 * Encode SYMLINK request
2225 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002226static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr,
2227 const struct nfs4_create_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002228{
Chuck Lever9f06c712010-12-14 14:59:18 +00002229 nfs4_xdr_enc_create(req, xdr, args);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002230}
2231
2232/*
2233 * Encode GETATTR request
2234 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002235static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr,
2236 const struct nfs4_getattr_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002237{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002238 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002239 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002240 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002241
Chuck Lever9f06c712010-12-14 14:59:18 +00002242 encode_compound_hdr(xdr, req, &hdr);
2243 encode_sequence(xdr, &args->seq_args, &hdr);
2244 encode_putfh(xdr, args->fh, &hdr);
2245 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002246 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002247}
2248
2249/*
2250 * Encode a CLOSE request
2251 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002252static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
2253 struct nfs_closeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002254{
Andy Adamson05d564f2008-12-23 16:06:15 -05002255 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002256 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Andy Adamson05d564f2008-12-23 16:06:15 -05002257 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002258
Chuck Lever9f06c712010-12-14 14:59:18 +00002259 encode_compound_hdr(xdr, req, &hdr);
2260 encode_sequence(xdr, &args->seq_args, &hdr);
2261 encode_putfh(xdr, args->fh, &hdr);
2262 encode_close(xdr, args, &hdr);
2263 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002264 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002265}
2266
2267/*
2268 * Encode an OPEN request
2269 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002270static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
2271 struct nfs_openargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002272{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002273 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002274 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002275 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002276
Chuck Lever9f06c712010-12-14 14:59:18 +00002277 encode_compound_hdr(xdr, req, &hdr);
2278 encode_sequence(xdr, &args->seq_args, &hdr);
2279 encode_putfh(xdr, args->fh, &hdr);
Chuck Lever9f06c712010-12-14 14:59:18 +00002280 encode_open(xdr, args, &hdr);
2281 encode_getfh(xdr, &hdr);
Weston Andros Adamsonae2bb032012-10-02 14:49:52 -07002282 if (args->access)
2283 encode_access(xdr, args->access, &hdr);
Trond Myklebust1549210f2012-06-05 09:16:47 -04002284 encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002285 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002286}
2287
2288/*
2289 * Encode an OPEN_CONFIRM request
2290 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002291static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req,
2292 struct xdr_stream *xdr,
2293 struct nfs_open_confirmargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002294{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002295 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002296 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002297 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002298
Chuck Lever9f06c712010-12-14 14:59:18 +00002299 encode_compound_hdr(xdr, req, &hdr);
2300 encode_putfh(xdr, args->fh, &hdr);
2301 encode_open_confirm(xdr, args, &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 request with no attributes.
2307 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002308static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req,
2309 struct xdr_stream *xdr,
2310 struct nfs_openargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002311{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002312 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002313 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
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_sequence(xdr, &args->seq_args, &hdr);
2318 encode_putfh(xdr, args->fh, &hdr);
2319 encode_open(xdr, args, &hdr);
Weston Andros Adamsonae2bb032012-10-02 14:49:52 -07002320 if (args->access)
2321 encode_access(xdr, args->access, &hdr);
Andy Adamsone23008e2012-10-02 21:07:32 -04002322 encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002323 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002324}
2325
2326/*
2327 * Encode an OPEN_DOWNGRADE request
2328 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002329static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req,
2330 struct xdr_stream *xdr,
2331 struct nfs_closeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002332{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002333 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002334 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002335 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002336
Chuck Lever9f06c712010-12-14 14:59:18 +00002337 encode_compound_hdr(xdr, req, &hdr);
2338 encode_sequence(xdr, &args->seq_args, &hdr);
2339 encode_putfh(xdr, args->fh, &hdr);
2340 encode_open_downgrade(xdr, args, &hdr);
2341 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002342 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002343}
2344
2345/*
2346 * Encode a LOCK request
2347 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002348static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr,
2349 struct nfs_lock_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002350{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002351 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002352 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002353 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002354
Chuck Lever9f06c712010-12-14 14:59:18 +00002355 encode_compound_hdr(xdr, req, &hdr);
2356 encode_sequence(xdr, &args->seq_args, &hdr);
2357 encode_putfh(xdr, args->fh, &hdr);
2358 encode_lock(xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002359 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002360}
2361
2362/*
2363 * Encode a LOCKT request
2364 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002365static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr,
2366 struct nfs_lockt_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002367{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002368 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002369 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002370 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002371
Chuck Lever9f06c712010-12-14 14:59:18 +00002372 encode_compound_hdr(xdr, req, &hdr);
2373 encode_sequence(xdr, &args->seq_args, &hdr);
2374 encode_putfh(xdr, args->fh, &hdr);
2375 encode_lockt(xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002376 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002377}
2378
2379/*
2380 * Encode a LOCKU request
2381 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002382static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr,
2383 struct nfs_locku_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002384{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002385 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002386 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002387 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002388
Chuck Lever9f06c712010-12-14 14:59:18 +00002389 encode_compound_hdr(xdr, req, &hdr);
2390 encode_sequence(xdr, &args->seq_args, &hdr);
2391 encode_putfh(xdr, args->fh, &hdr);
2392 encode_locku(xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002393 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002394}
2395
Chuck Lever9f06c712010-12-14 14:59:18 +00002396static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req,
2397 struct xdr_stream *xdr,
2398 struct nfs_release_lockowner_args *args)
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04002399{
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04002400 struct compound_hdr hdr = {
2401 .minorversion = 0,
2402 };
2403
Chuck Lever9f06c712010-12-14 14:59:18 +00002404 encode_compound_hdr(xdr, req, &hdr);
2405 encode_release_lockowner(xdr, &args->lock_owner, &hdr);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04002406 encode_nops(&hdr);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04002407}
2408
Linus Torvalds1da177e2005-04-16 15:20:36 -07002409/*
2410 * Encode a READLINK request
2411 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002412static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr,
2413 const struct nfs4_readlink *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002414{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002415 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002416 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002417 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002418
Chuck Lever9f06c712010-12-14 14:59:18 +00002419 encode_compound_hdr(xdr, req, &hdr);
2420 encode_sequence(xdr, &args->seq_args, &hdr);
2421 encode_putfh(xdr, args->fh, &hdr);
2422 encode_readlink(xdr, args, req, &hdr);
Trond Myklebuste3a535e2007-07-19 10:03:38 -04002423
Benny Halevy28f56692009-04-01 09:22:09 -04002424 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
Trond Myklebuste3a535e2007-07-19 10:03:38 -04002425 args->pgbase, args->pglen);
Andy Adamsond0179312008-12-23 16:06:17 -05002426 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002427}
2428
2429/*
2430 * Encode a READDIR request
2431 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002432static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr,
2433 const struct nfs4_readdir_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002434{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002435 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002436 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002437 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002438
Chuck Lever9f06c712010-12-14 14:59:18 +00002439 encode_compound_hdr(xdr, req, &hdr);
2440 encode_sequence(xdr, &args->seq_args, &hdr);
2441 encode_putfh(xdr, args->fh, &hdr);
2442 encode_readdir(xdr, args, req, &hdr);
Trond Myklebustd6ac02d2007-07-19 10:03:37 -04002443
Benny Halevy28f56692009-04-01 09:22:09 -04002444 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
Trond Myklebustd6ac02d2007-07-19 10:03:37 -04002445 args->pgbase, args->count);
2446 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
Benny Halevy28f56692009-04-01 09:22:09 -04002447 __func__, hdr.replen << 2, args->pages,
Trond Myklebustd6ac02d2007-07-19 10:03:37 -04002448 args->pgbase, args->count);
Andy Adamsond0179312008-12-23 16:06:17 -05002449 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002450}
2451
2452/*
2453 * Encode a READ request
2454 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002455static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr,
Anna Schumaker3c6b8992014-05-06 09:12:24 -04002456 struct nfs_pgio_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002457{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002458 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002459 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002460 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002461
Chuck Lever9f06c712010-12-14 14:59:18 +00002462 encode_compound_hdr(xdr, req, &hdr);
2463 encode_sequence(xdr, &args->seq_args, &hdr);
2464 encode_putfh(xdr, args->fh, &hdr);
2465 encode_read(xdr, args, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002466
Benny Halevy28f56692009-04-01 09:22:09 -04002467 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002468 args->pages, args->pgbase, args->count);
\"Talpey, Thomas\4f22ccc2007-09-10 13:44:58 -04002469 req->rq_rcv_buf.flags |= XDRBUF_READ;
Andy Adamsond0179312008-12-23 16:06:17 -05002470 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002471}
2472
2473/*
2474 * Encode an SETATTR request
2475 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002476static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr,
2477 struct nfs_setattrargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002478{
Andy Adamson05d564f2008-12-23 16:06:15 -05002479 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002480 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Andy Adamson05d564f2008-12-23 16:06:15 -05002481 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002482
Chuck Lever9f06c712010-12-14 14:59:18 +00002483 encode_compound_hdr(xdr, req, &hdr);
2484 encode_sequence(xdr, &args->seq_args, &hdr);
2485 encode_putfh(xdr, args->fh, &hdr);
2486 encode_setattr(xdr, args, args->server, &hdr);
2487 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002488 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002489}
2490
2491/*
J. Bruce Fields029d1052005-06-22 17:16:22 +00002492 * Encode a GETACL request
2493 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002494static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
2495 struct nfs_getaclargs *args)
J. Bruce Fields029d1052005-06-22 17:16:22 +00002496{
J. Bruce Fields029d1052005-06-22 17:16:22 +00002497 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002498 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
J. Bruce Fields029d1052005-06-22 17:16:22 +00002499 };
Benny Halevy28f56692009-04-01 09:22:09 -04002500 uint32_t replen;
J. Bruce Fields029d1052005-06-22 17:16:22 +00002501
Chuck Lever9f06c712010-12-14 14:59:18 +00002502 encode_compound_hdr(xdr, req, &hdr);
2503 encode_sequence(xdr, &args->seq_args, &hdr);
2504 encode_putfh(xdr, args->fh, &hdr);
Andy Adamsonbf118a32011-12-07 11:55:27 -05002505 replen = hdr.replen + op_decode_hdr_maxsz + 1;
Chuck Lever9f06c712010-12-14 14:59:18 +00002506 encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002507
Benny Halevy28f56692009-04-01 09:22:09 -04002508 xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
J. Bruce Fields029d1052005-06-22 17:16:22 +00002509 args->acl_pages, args->acl_pgbase, args->acl_len);
Andy Adamsonbf118a32011-12-07 11:55:27 -05002510
Andy Adamsond0179312008-12-23 16:06:17 -05002511 encode_nops(&hdr);
J. Bruce Fields029d1052005-06-22 17:16:22 +00002512}
2513
2514/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002515 * Encode a WRITE request
2516 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002517static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr,
Anna Schumaker3c6b8992014-05-06 09:12:24 -04002518 struct nfs_pgio_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002519{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002520 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002521 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002522 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002523
Chuck Lever9f06c712010-12-14 14:59:18 +00002524 encode_compound_hdr(xdr, req, &hdr);
2525 encode_sequence(xdr, &args->seq_args, &hdr);
2526 encode_putfh(xdr, args->fh, &hdr);
2527 encode_write(xdr, args, &hdr);
\"Talpey, Thomas\4f22ccc2007-09-10 13:44:58 -04002528 req->rq_snd_buf.flags |= XDRBUF_WRITE;
Fred Isaman7ffd1062011-03-03 15:13:46 +00002529 if (args->bitmask)
2530 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002531 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002532}
2533
2534/*
2535 * a COMMIT request
2536 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002537static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
Fred Isaman0b7c0152012-04-20 14:47:39 -04002538 struct nfs_commitargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002539{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002540 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002541 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002542 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002543
Chuck Lever9f06c712010-12-14 14:59:18 +00002544 encode_compound_hdr(xdr, req, &hdr);
2545 encode_sequence(xdr, &args->seq_args, &hdr);
2546 encode_putfh(xdr, args->fh, &hdr);
2547 encode_commit(xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002548 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002549}
2550
2551/*
2552 * FSINFO request
2553 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002554static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
2555 struct nfs4_fsinfo_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002556{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002557 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002558 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002559 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002560
Chuck Lever9f06c712010-12-14 14:59:18 +00002561 encode_compound_hdr(xdr, req, &hdr);
2562 encode_sequence(xdr, &args->seq_args, &hdr);
2563 encode_putfh(xdr, args->fh, &hdr);
2564 encode_fsinfo(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002565 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002566}
2567
2568/*
2569 * a PATHCONF request
2570 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002571static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
2572 const struct nfs4_pathconf_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002573{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002574 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002575 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002576 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002577
Chuck Lever9f06c712010-12-14 14:59:18 +00002578 encode_compound_hdr(xdr, req, &hdr);
2579 encode_sequence(xdr, &args->seq_args, &hdr);
2580 encode_putfh(xdr, args->fh, &hdr);
2581 encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0],
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002582 &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002583 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002584}
2585
2586/*
2587 * a STATFS request
2588 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002589static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
2590 const struct nfs4_statfs_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002591{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002592 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002593 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002594 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002595
Chuck Lever9f06c712010-12-14 14:59:18 +00002596 encode_compound_hdr(xdr, req, &hdr);
2597 encode_sequence(xdr, &args->seq_args, &hdr);
2598 encode_putfh(xdr, args->fh, &hdr);
2599 encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0],
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002600 args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002601 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002602}
2603
2604/*
2605 * GETATTR_BITMAP request
2606 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002607static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
2608 struct xdr_stream *xdr,
2609 struct nfs4_server_caps_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002610{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002611 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002612 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002613 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002614
Chuck Lever9f06c712010-12-14 14:59:18 +00002615 encode_compound_hdr(xdr, req, &hdr);
2616 encode_sequence(xdr, &args->seq_args, &hdr);
2617 encode_putfh(xdr, args->fhandle, &hdr);
2618 encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
Chuck Lever264e6352012-03-01 17:02:05 -05002619 FATTR4_WORD0_FH_EXPIRE_TYPE|
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002620 FATTR4_WORD0_LINK_SUPPORT|
2621 FATTR4_WORD0_SYMLINK_SUPPORT|
2622 FATTR4_WORD0_ACLSUPPORT, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002623 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002624}
2625
2626/*
2627 * a RENEW request
2628 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002629static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
2630 struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002631{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002632 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002633 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002634 };
2635
Chuck Lever9f06c712010-12-14 14:59:18 +00002636 encode_compound_hdr(xdr, req, &hdr);
Chuck Leverbb4dae52012-03-01 17:01:48 -05002637 encode_renew(xdr, clp->cl_clientid, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002638 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002639}
2640
2641/*
2642 * a SETCLIENTID request
2643 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002644static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req,
2645 struct xdr_stream *xdr,
2646 struct nfs4_setclientid *sc)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002647{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002648 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002649 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002650 };
2651
Chuck Lever9f06c712010-12-14 14:59:18 +00002652 encode_compound_hdr(xdr, req, &hdr);
2653 encode_setclientid(xdr, sc, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002654 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002655}
2656
2657/*
2658 * a SETCLIENTID_CONFIRM request
2659 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002660static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req,
2661 struct xdr_stream *xdr,
2662 struct nfs4_setclientid_res *arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002663{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002664 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002665 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002666 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002667
Chuck Lever9f06c712010-12-14 14:59:18 +00002668 encode_compound_hdr(xdr, req, &hdr);
2669 encode_setclientid_confirm(xdr, arg, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002670 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002671}
2672
2673/*
2674 * DELEGRETURN request
2675 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002676static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
2677 struct xdr_stream *xdr,
2678 const struct nfs4_delegreturnargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002679{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002680 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002681 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002682 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002683
Chuck Lever9f06c712010-12-14 14:59:18 +00002684 encode_compound_hdr(xdr, req, &hdr);
2685 encode_sequence(xdr, &args->seq_args, &hdr);
2686 encode_putfh(xdr, args->fhandle, &hdr);
Chuck Lever9f06c712010-12-14 14:59:18 +00002687 encode_getfattr(xdr, args->bitmask, &hdr);
Trond Myklebuste144cbc2012-04-28 16:05:03 -04002688 encode_delegreturn(xdr, args->stateid, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002689 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002690}
2691
2692/*
Trond Myklebust683b57b2006-06-09 09:34:22 -04002693 * Encode FS_LOCATIONS request
2694 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002695static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
2696 struct xdr_stream *xdr,
2697 struct nfs4_fs_locations_arg *args)
Trond Myklebust683b57b2006-06-09 09:34:22 -04002698{
Trond Myklebust683b57b2006-06-09 09:34:22 -04002699 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002700 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Trond Myklebust683b57b2006-06-09 09:34:22 -04002701 };
Benny Halevy28f56692009-04-01 09:22:09 -04002702 uint32_t replen;
Trond Myklebust683b57b2006-06-09 09:34:22 -04002703
Chuck Lever9f06c712010-12-14 14:59:18 +00002704 encode_compound_hdr(xdr, req, &hdr);
2705 encode_sequence(xdr, &args->seq_args, &hdr);
Chuck Leverb03d7352013-10-17 14:12:50 -04002706 if (args->migration) {
2707 encode_putfh(xdr, args->fh, &hdr);
2708 replen = hdr.replen;
2709 encode_fs_locations(xdr, args->bitmask, &hdr);
2710 if (args->renew)
2711 encode_renew(xdr, args->clientid, &hdr);
2712 } else {
2713 encode_putfh(xdr, args->dir_fh, &hdr);
2714 encode_lookup(xdr, args->name, &hdr);
2715 replen = hdr.replen;
2716 encode_fs_locations(xdr, args->bitmask, &hdr);
2717 }
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002718
Chuck Leverb03d7352013-10-17 14:12:50 -04002719 /* Set up reply kvec to capture returned fs_locations array. */
Benny Halevy28f56692009-04-01 09:22:09 -04002720 xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
Trond Myklebust683b57b2006-06-09 09:34:22 -04002721 0, PAGE_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -05002722 encode_nops(&hdr);
Trond Myklebust683b57b2006-06-09 09:34:22 -04002723}
2724
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00002725/*
2726 * Encode SECINFO request
2727 */
2728static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
2729 struct xdr_stream *xdr,
2730 struct nfs4_secinfo_arg *args)
2731{
2732 struct compound_hdr hdr = {
2733 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2734 };
2735
2736 encode_compound_hdr(xdr, req, &hdr);
2737 encode_sequence(xdr, &args->seq_args, &hdr);
2738 encode_putfh(xdr, args->dir_fh, &hdr);
2739 encode_secinfo(xdr, args->name, &hdr);
2740 encode_nops(&hdr);
2741}
2742
Chuck Lever44c99932013-10-17 14:13:30 -04002743/*
2744 * Encode FSID_PRESENT request
2745 */
2746static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req,
2747 struct xdr_stream *xdr,
2748 struct nfs4_fsid_present_arg *args)
2749{
2750 struct compound_hdr hdr = {
2751 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2752 };
2753
2754 encode_compound_hdr(xdr, req, &hdr);
2755 encode_sequence(xdr, &args->seq_args, &hdr);
2756 encode_putfh(xdr, args->fh, &hdr);
2757 encode_getfh(xdr, &hdr);
2758 if (args->renew)
2759 encode_renew(xdr, args->clientid, &hdr);
2760 encode_nops(&hdr);
2761}
2762
Benny Halevy99fe60d2009-04-01 09:22:29 -04002763#if defined(CONFIG_NFS_V4_1)
2764/*
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -04002765 * BIND_CONN_TO_SESSION request
2766 */
2767static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req,
2768 struct xdr_stream *xdr,
2769 struct nfs_client *clp)
2770{
2771 struct compound_hdr hdr = {
2772 .minorversion = clp->cl_mvops->minor_version,
2773 };
2774
2775 encode_compound_hdr(xdr, req, &hdr);
2776 encode_bind_conn_to_session(xdr, clp->cl_session, &hdr);
2777 encode_nops(&hdr);
2778}
2779
2780/*
Benny Halevy99fe60d2009-04-01 09:22:29 -04002781 * EXCHANGE_ID request
2782 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002783static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req,
2784 struct xdr_stream *xdr,
2785 struct nfs41_exchange_id_args *args)
Benny Halevy99fe60d2009-04-01 09:22:29 -04002786{
Benny Halevy99fe60d2009-04-01 09:22:29 -04002787 struct compound_hdr hdr = {
Trond Myklebusta4432342010-06-16 09:52:27 -04002788 .minorversion = args->client->cl_mvops->minor_version,
Benny Halevy99fe60d2009-04-01 09:22:29 -04002789 };
2790
Chuck Lever9f06c712010-12-14 14:59:18 +00002791 encode_compound_hdr(xdr, req, &hdr);
2792 encode_exchange_id(xdr, args, &hdr);
Benny Halevy99fe60d2009-04-01 09:22:29 -04002793 encode_nops(&hdr);
Benny Halevy99fe60d2009-04-01 09:22:29 -04002794}
Andy Adamson2050f0c2009-04-01 09:22:30 -04002795
2796/*
Andy Adamsonfc931582009-04-01 09:22:31 -04002797 * a CREATE_SESSION request
2798 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002799static void nfs4_xdr_enc_create_session(struct rpc_rqst *req,
2800 struct xdr_stream *xdr,
2801 struct nfs41_create_session_args *args)
Andy Adamsonfc931582009-04-01 09:22:31 -04002802{
Andy Adamsonfc931582009-04-01 09:22:31 -04002803 struct compound_hdr hdr = {
Trond Myklebusta4432342010-06-16 09:52:27 -04002804 .minorversion = args->client->cl_mvops->minor_version,
Andy Adamsonfc931582009-04-01 09:22:31 -04002805 };
2806
Chuck Lever9f06c712010-12-14 14:59:18 +00002807 encode_compound_hdr(xdr, req, &hdr);
2808 encode_create_session(xdr, args, &hdr);
Andy Adamsonfc931582009-04-01 09:22:31 -04002809 encode_nops(&hdr);
Andy Adamsonfc931582009-04-01 09:22:31 -04002810}
2811
2812/*
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002813 * a DESTROY_SESSION request
2814 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002815static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req,
2816 struct xdr_stream *xdr,
2817 struct nfs4_session *session)
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002818{
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002819 struct compound_hdr hdr = {
Trond Myklebusta4432342010-06-16 09:52:27 -04002820 .minorversion = session->clp->cl_mvops->minor_version,
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002821 };
2822
Chuck Lever9f06c712010-12-14 14:59:18 +00002823 encode_compound_hdr(xdr, req, &hdr);
2824 encode_destroy_session(xdr, session, &hdr);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002825 encode_nops(&hdr);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002826}
2827
2828/*
Trond Myklebust66245532012-05-25 17:18:09 -04002829 * a DESTROY_CLIENTID request
2830 */
2831static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req,
2832 struct xdr_stream *xdr,
2833 struct nfs_client *clp)
2834{
2835 struct compound_hdr hdr = {
2836 .minorversion = clp->cl_mvops->minor_version,
2837 };
2838
2839 encode_compound_hdr(xdr, req, &hdr);
2840 encode_destroy_clientid(xdr, clp->cl_clientid, &hdr);
2841 encode_nops(&hdr);
2842}
2843
2844/*
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002845 * a SEQUENCE request
2846 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002847static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr,
2848 struct nfs4_sequence_args *args)
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002849{
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002850 struct compound_hdr hdr = {
2851 .minorversion = nfs4_xdr_minorversion(args),
2852 };
2853
Chuck Lever9f06c712010-12-14 14:59:18 +00002854 encode_compound_hdr(xdr, req, &hdr);
2855 encode_sequence(xdr, args, &hdr);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002856 encode_nops(&hdr);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002857}
2858
2859/*
Andy Adamson2050f0c2009-04-01 09:22:30 -04002860 * a GET_LEASE_TIME request
2861 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002862static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req,
2863 struct xdr_stream *xdr,
2864 struct nfs4_get_lease_time_args *args)
Andy Adamson2050f0c2009-04-01 09:22:30 -04002865{
Andy Adamson2050f0c2009-04-01 09:22:30 -04002866 struct compound_hdr hdr = {
2867 .minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
2868 };
Fred Isamandae100c2011-07-30 20:52:37 -04002869 const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME };
Andy Adamson2050f0c2009-04-01 09:22:30 -04002870
Chuck Lever9f06c712010-12-14 14:59:18 +00002871 encode_compound_hdr(xdr, req, &hdr);
2872 encode_sequence(xdr, &args->la_seq_args, &hdr);
2873 encode_putrootfh(xdr, &hdr);
2874 encode_fsinfo(xdr, lease_bitmap, &hdr);
Andy Adamson2050f0c2009-04-01 09:22:30 -04002875 encode_nops(&hdr);
Andy Adamson2050f0c2009-04-01 09:22:30 -04002876}
Ricardo Labiaga180197532009-12-05 16:08:40 -05002877
2878/*
2879 * a RECLAIM_COMPLETE request
2880 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002881static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req,
2882 struct xdr_stream *xdr,
2883 struct nfs41_reclaim_complete_args *args)
Ricardo Labiaga180197532009-12-05 16:08:40 -05002884{
Ricardo Labiaga180197532009-12-05 16:08:40 -05002885 struct compound_hdr hdr = {
2886 .minorversion = nfs4_xdr_minorversion(&args->seq_args)
2887 };
2888
Chuck Lever9f06c712010-12-14 14:59:18 +00002889 encode_compound_hdr(xdr, req, &hdr);
2890 encode_sequence(xdr, &args->seq_args, &hdr);
2891 encode_reclaim_complete(xdr, args, &hdr);
Ricardo Labiaga180197532009-12-05 16:08:40 -05002892 encode_nops(&hdr);
Ricardo Labiaga180197532009-12-05 16:08:40 -05002893}
2894
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002895/*
Andy Adamson7f11d8d2011-07-30 20:52:35 -04002896 * Encode GETDEVICELIST request
2897 */
2898static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req,
2899 struct xdr_stream *xdr,
2900 struct nfs4_getdevicelist_args *args)
2901{
2902 struct compound_hdr hdr = {
2903 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2904 };
2905
2906 encode_compound_hdr(xdr, req, &hdr);
2907 encode_sequence(xdr, &args->seq_args, &hdr);
2908 encode_putfh(xdr, args->fh, &hdr);
2909 encode_getdevicelist(xdr, args, &hdr);
2910 encode_nops(&hdr);
2911}
2912
2913/*
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002914 * Encode GETDEVICEINFO request
2915 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002916static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req,
2917 struct xdr_stream *xdr,
2918 struct nfs4_getdeviceinfo_args *args)
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002919{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002920 struct compound_hdr hdr = {
2921 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2922 };
2923
Chuck Lever9f06c712010-12-14 14:59:18 +00002924 encode_compound_hdr(xdr, req, &hdr);
2925 encode_sequence(xdr, &args->seq_args, &hdr);
2926 encode_getdeviceinfo(xdr, args, &hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002927
2928 /* set up reply kvec. Subtract notification bitmap max size (2)
2929 * so that notification bitmap is put in xdr_buf tail */
2930 xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2,
2931 args->pdev->pages, args->pdev->pgbase,
2932 args->pdev->pglen);
2933
2934 encode_nops(&hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002935}
2936
2937/*
2938 * Encode LAYOUTGET request
2939 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002940static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
2941 struct xdr_stream *xdr,
2942 struct nfs4_layoutget_args *args)
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002943{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002944 struct compound_hdr hdr = {
2945 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2946 };
2947
Chuck Lever9f06c712010-12-14 14:59:18 +00002948 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_layoutget(xdr, args, &hdr);
Weston Andros Adamson35124a02011-03-24 16:48:21 -04002952
2953 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
2954 args->layout.pages, 0, args->layout.pglen);
2955
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002956 encode_nops(&hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002957}
Andy Adamson863a3c62011-03-23 13:27:54 +00002958
2959/*
2960 * Encode LAYOUTCOMMIT request
2961 */
Benny Halevycbe82602011-05-22 19:52:37 +03002962static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req,
2963 struct xdr_stream *xdr,
2964 struct nfs4_layoutcommit_args *args)
Andy Adamson863a3c62011-03-23 13:27:54 +00002965{
Benny Halevyac7db722011-05-22 19:53:48 +03002966 struct nfs4_layoutcommit_data *data =
2967 container_of(args, struct nfs4_layoutcommit_data, args);
Andy Adamson863a3c62011-03-23 13:27:54 +00002968 struct compound_hdr hdr = {
2969 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2970 };
2971
2972 encode_compound_hdr(xdr, req, &hdr);
2973 encode_sequence(xdr, &args->seq_args, &hdr);
2974 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
Benny Halevyac7db722011-05-22 19:53:48 +03002975 encode_layoutcommit(xdr, data->args.inode, args, &hdr);
Andy Adamson863a3c62011-03-23 13:27:54 +00002976 encode_getfattr(xdr, args->bitmask, &hdr);
2977 encode_nops(&hdr);
Benny Halevycbe82602011-05-22 19:52:37 +03002978}
2979
2980/*
2981 * Encode LAYOUTRETURN request
2982 */
2983static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req,
2984 struct xdr_stream *xdr,
2985 struct nfs4_layoutreturn_args *args)
2986{
2987 struct compound_hdr hdr = {
2988 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2989 };
2990
2991 encode_compound_hdr(xdr, req, &hdr);
2992 encode_sequence(xdr, &args->seq_args, &hdr);
2993 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2994 encode_layoutreturn(xdr, args, &hdr);
2995 encode_nops(&hdr);
Andy Adamson863a3c62011-03-23 13:27:54 +00002996}
Bryan Schumakerfca78d62011-06-02 14:59:07 -04002997
2998/*
2999 * Encode SECINFO_NO_NAME request
3000 */
3001static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
3002 struct xdr_stream *xdr,
3003 struct nfs41_secinfo_no_name_args *args)
3004{
3005 struct compound_hdr hdr = {
3006 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
3007 };
3008
3009 encode_compound_hdr(xdr, req, &hdr);
3010 encode_sequence(xdr, &args->seq_args, &hdr);
3011 encode_putrootfh(xdr, &hdr);
3012 encode_secinfo_no_name(xdr, args, &hdr);
3013 encode_nops(&hdr);
3014 return 0;
3015}
Bryan Schumaker7d974792011-06-02 14:59:08 -04003016
3017/*
3018 * Encode TEST_STATEID request
3019 */
3020static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req,
3021 struct xdr_stream *xdr,
3022 struct nfs41_test_stateid_args *args)
3023{
3024 struct compound_hdr hdr = {
3025 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
3026 };
3027
3028 encode_compound_hdr(xdr, req, &hdr);
3029 encode_sequence(xdr, &args->seq_args, &hdr);
3030 encode_test_stateid(xdr, args, &hdr);
3031 encode_nops(&hdr);
3032}
Bryan Schumaker9aeda352011-06-02 14:59:09 -04003033
3034/*
3035 * Encode FREE_STATEID request
3036 */
3037static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req,
3038 struct xdr_stream *xdr,
3039 struct nfs41_free_stateid_args *args)
3040{
3041 struct compound_hdr hdr = {
3042 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
3043 };
3044
3045 encode_compound_hdr(xdr, req, &hdr);
3046 encode_sequence(xdr, &args->seq_args, &hdr);
3047 encode_free_stateid(xdr, args, &hdr);
3048 encode_nops(&hdr);
3049}
Benny Halevy99fe60d2009-04-01 09:22:29 -04003050#endif /* CONFIG_NFS_V4_1 */
3051
Benny Halevy686841b2009-08-14 17:19:48 +03003052static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
3053{
3054 dprintk("nfs: %s: prematurely hit end of receive buffer. "
3055 "Remaining buffer length is %tu words.\n",
3056 func, xdr->end - xdr->p);
3057}
Linus Torvalds1da177e2005-04-16 15:20:36 -07003058
Trond Myklebust683b57b2006-06-09 09:34:22 -04003059static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003060{
Al Viro8687b632006-10-19 23:28:48 -07003061 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003062
Benny Halevyc0eae662009-08-14 17:20:14 +03003063 p = xdr_inline_decode(xdr, 4);
3064 if (unlikely(!p))
3065 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003066 *len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003067 p = xdr_inline_decode(xdr, *len);
3068 if (unlikely(!p))
3069 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003070 *string = (char *)p;
3071 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003072out_overflow:
3073 print_overflow_msg(__func__, xdr);
3074 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003075}
3076
3077static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
3078{
Al Viro8687b632006-10-19 23:28:48 -07003079 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003080
Benny Halevyc0eae662009-08-14 17:20:14 +03003081 p = xdr_inline_decode(xdr, 8);
3082 if (unlikely(!p))
3083 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003084 hdr->status = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03003085 hdr->taglen = be32_to_cpup(p);
Andy Adamson6c0195a2008-12-23 16:06:15 -05003086
Benny Halevyc0eae662009-08-14 17:20:14 +03003087 p = xdr_inline_decode(xdr, hdr->taglen + 4);
3088 if (unlikely(!p))
3089 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003090 hdr->tag = (char *)p;
3091 p += XDR_QUADLEN(hdr->taglen);
Benny Halevycccddf42009-08-14 17:20:19 +03003092 hdr->nops = be32_to_cpup(p);
Benny Halevyaadf6152008-12-23 16:06:13 -05003093 if (unlikely(hdr->nops < 1))
3094 return nfs4_stat_to_errno(hdr->status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003095 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003096out_overflow:
3097 print_overflow_msg(__func__, xdr);
3098 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003099}
3100
Trond Myklebustc7848f62013-12-04 17:39:23 -05003101static bool __decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected,
3102 int *nfs_retval)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003103{
Al Viro8687b632006-10-19 23:28:48 -07003104 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003105 uint32_t opnum;
3106 int32_t nfserr;
3107
Benny Halevyc0eae662009-08-14 17:20:14 +03003108 p = xdr_inline_decode(xdr, 8);
3109 if (unlikely(!p))
3110 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003111 opnum = be32_to_cpup(p++);
Trond Myklebustc7848f62013-12-04 17:39:23 -05003112 if (unlikely(opnum != expected))
3113 goto out_bad_operation;
Benny Halevycccddf42009-08-14 17:20:19 +03003114 nfserr = be32_to_cpup(p);
Trond Myklebustc7848f62013-12-04 17:39:23 -05003115 if (nfserr == NFS_OK)
3116 *nfs_retval = 0;
3117 else
3118 *nfs_retval = nfs4_stat_to_errno(nfserr);
3119 return true;
3120out_bad_operation:
3121 dprintk("nfs: Server returned operation"
3122 " %d but we issued a request for %d\n",
3123 opnum, expected);
3124 *nfs_retval = -EREMOTEIO;
3125 return false;
Benny Halevyc0eae662009-08-14 17:20:14 +03003126out_overflow:
3127 print_overflow_msg(__func__, xdr);
Trond Myklebustc7848f62013-12-04 17:39:23 -05003128 *nfs_retval = -EIO;
3129 return false;
3130}
3131
3132static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
3133{
3134 int retval;
3135
3136 __decode_op_hdr(xdr, expected, &retval);
3137 return retval;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003138}
3139
3140/* Dummy routine */
David Howellsadfa6f92006-08-22 20:06:08 -04003141static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003142{
Al Viro8687b632006-10-19 23:28:48 -07003143 __be32 *p;
Trond Myklebust683b57b2006-06-09 09:34:22 -04003144 unsigned int strlen;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003145 char *str;
3146
Benny Halevyc0eae662009-08-14 17:20:14 +03003147 p = xdr_inline_decode(xdr, 12);
3148 if (likely(p))
3149 return decode_opaque_inline(xdr, &strlen, &str);
3150 print_overflow_msg(__func__, xdr);
3151 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003152}
3153
3154static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
3155{
Al Viro8687b632006-10-19 23:28:48 -07003156 uint32_t bmlen;
3157 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003158
Benny Halevyc0eae662009-08-14 17:20:14 +03003159 p = xdr_inline_decode(xdr, 4);
3160 if (unlikely(!p))
3161 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003162 bmlen = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003163
Fred Isamandae100c2011-07-30 20:52:37 -04003164 bitmap[0] = bitmap[1] = bitmap[2] = 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003165 p = xdr_inline_decode(xdr, (bmlen << 2));
3166 if (unlikely(!p))
3167 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003168 if (bmlen > 0) {
Benny Halevy6f723f72009-08-14 17:19:37 +03003169 bitmap[0] = be32_to_cpup(p++);
Fred Isamandae100c2011-07-30 20:52:37 -04003170 if (bmlen > 1) {
3171 bitmap[1] = be32_to_cpup(p++);
3172 if (bmlen > 2)
3173 bitmap[2] = be32_to_cpup(p);
3174 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003175 }
3176 return 0;
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
Trond Myklebust256e48b2012-06-21 11:18:13 -04003182static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003183{
Al Viro8687b632006-10-19 23:28:48 -07003184 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003185
Benny Halevyc0eae662009-08-14 17:20:14 +03003186 p = xdr_inline_decode(xdr, 4);
3187 if (unlikely(!p))
3188 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003189 *attrlen = be32_to_cpup(p);
Trond Myklebust256e48b2012-06-21 11:18:13 -04003190 *savep = xdr_stream_pos(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003191 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003192out_overflow:
3193 print_overflow_msg(__func__, xdr);
3194 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003195}
3196
3197static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
3198{
3199 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
Roman Borisov3388bff2010-10-13 16:54:51 +04003200 int ret;
3201 ret = decode_attr_bitmap(xdr, bitmask);
3202 if (unlikely(ret < 0))
3203 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003204 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
3205 } else
Fred Isamandae100c2011-07-30 20:52:37 -04003206 bitmask[0] = bitmask[1] = bitmask[2] = 0;
3207 dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__,
3208 bitmask[0], bitmask[1], bitmask[2]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003209 return 0;
3210}
3211
3212static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
3213{
Al Viro8687b632006-10-19 23:28:48 -07003214 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003215 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003216
3217 *type = 0;
3218 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
3219 return -EIO;
3220 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003221 p = xdr_inline_decode(xdr, 4);
3222 if (unlikely(!p))
3223 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003224 *type = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003225 if (*type < NF4REG || *type > NF4NAMEDATTR) {
Harvey Harrison3110ff82008-05-02 13:42:44 -07003226 dprintk("%s: bad type %d\n", __func__, *type);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003227 return -EIO;
3228 }
3229 bitmap[0] &= ~FATTR4_WORD0_TYPE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003230 ret = NFS_ATTR_FATTR_TYPE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003231 }
Trond Myklebustbca79472009-03-11 14:10:26 -04003232 dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]);
Trond Myklebust409924e2009-03-11 14:10:27 -04003233 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003234out_overflow:
3235 print_overflow_msg(__func__, xdr);
3236 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003237}
3238
Chuck Lever264e6352012-03-01 17:02:05 -05003239static int decode_attr_fh_expire_type(struct xdr_stream *xdr,
3240 uint32_t *bitmap, uint32_t *type)
3241{
3242 __be32 *p;
3243
3244 *type = 0;
3245 if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U)))
3246 return -EIO;
3247 if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) {
3248 p = xdr_inline_decode(xdr, 4);
3249 if (unlikely(!p))
3250 goto out_overflow;
3251 *type = be32_to_cpup(p);
3252 bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE;
3253 }
3254 dprintk("%s: expire type=0x%x\n", __func__, *type);
3255 return 0;
3256out_overflow:
3257 print_overflow_msg(__func__, xdr);
3258 return -EIO;
3259}
3260
Linus Torvalds1da177e2005-04-16 15:20:36 -07003261static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
3262{
Al Viro8687b632006-10-19 23:28:48 -07003263 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003264 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003265
3266 *change = 0;
3267 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
3268 return -EIO;
3269 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003270 p = xdr_inline_decode(xdr, 8);
3271 if (unlikely(!p))
3272 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003273 xdr_decode_hyper(p, change);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003274 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003275 ret = NFS_ATTR_FATTR_CHANGE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003276 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003277 dprintk("%s: change attribute=%Lu\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003278 (unsigned long long)*change);
Trond Myklebust409924e2009-03-11 14:10:27 -04003279 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003280out_overflow:
3281 print_overflow_msg(__func__, xdr);
3282 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003283}
3284
3285static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
3286{
Al Viro8687b632006-10-19 23:28:48 -07003287 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003288 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003289
3290 *size = 0;
3291 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
3292 return -EIO;
3293 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003294 p = xdr_inline_decode(xdr, 8);
3295 if (unlikely(!p))
3296 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003297 xdr_decode_hyper(p, size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003298 bitmap[0] &= ~FATTR4_WORD0_SIZE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003299 ret = NFS_ATTR_FATTR_SIZE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003300 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003301 dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size);
Trond Myklebust409924e2009-03-11 14:10:27 -04003302 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003303out_overflow:
3304 print_overflow_msg(__func__, xdr);
3305 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003306}
3307
3308static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3309{
Al Viro8687b632006-10-19 23:28:48 -07003310 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003311
3312 *res = 0;
3313 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
3314 return -EIO;
3315 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003316 p = xdr_inline_decode(xdr, 4);
3317 if (unlikely(!p))
3318 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003319 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003320 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
3321 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003322 dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true");
Linus Torvalds1da177e2005-04-16 15:20:36 -07003323 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003324out_overflow:
3325 print_overflow_msg(__func__, xdr);
3326 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003327}
3328
3329static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3330{
Al Viro8687b632006-10-19 23:28:48 -07003331 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003332
3333 *res = 0;
3334 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
3335 return -EIO;
3336 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003337 p = xdr_inline_decode(xdr, 4);
3338 if (unlikely(!p))
3339 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003340 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003341 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
3342 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003343 dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true");
Linus Torvalds1da177e2005-04-16 15:20:36 -07003344 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003345out_overflow:
3346 print_overflow_msg(__func__, xdr);
3347 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003348}
3349
Trond Myklebust8b4bdcf2006-06-09 09:34:19 -04003350static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003351{
Al Viro8687b632006-10-19 23:28:48 -07003352 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003353 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003354
3355 fsid->major = 0;
3356 fsid->minor = 0;
3357 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
3358 return -EIO;
3359 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003360 p = xdr_inline_decode(xdr, 16);
3361 if (unlikely(!p))
3362 goto out_overflow;
Benny Halevy3ceb4db2009-08-14 17:19:41 +03003363 p = xdr_decode_hyper(p, &fsid->major);
Benny Halevycccddf42009-08-14 17:20:19 +03003364 xdr_decode_hyper(p, &fsid->minor);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003365 bitmap[0] &= ~FATTR4_WORD0_FSID;
Trond Myklebust409924e2009-03-11 14:10:27 -04003366 ret = NFS_ATTR_FATTR_FSID;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003367 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003368 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003369 (unsigned long long)fsid->major,
3370 (unsigned long long)fsid->minor);
Trond Myklebust409924e2009-03-11 14:10:27 -04003371 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003372out_overflow:
3373 print_overflow_msg(__func__, xdr);
3374 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003375}
3376
3377static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3378{
Al Viro8687b632006-10-19 23:28:48 -07003379 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003380
3381 *res = 60;
3382 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
3383 return -EIO;
3384 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003385 p = xdr_inline_decode(xdr, 4);
3386 if (unlikely(!p))
3387 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003388 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003389 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
3390 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003391 dprintk("%s: file size=%u\n", __func__, (unsigned int)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003392 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003393out_overflow:
3394 print_overflow_msg(__func__, xdr);
3395 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003396}
3397
Trond Myklebustee7b75f2011-06-16 13:15:41 -04003398static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res)
Bryan Schumakerae42c702010-10-21 16:33:17 -04003399{
3400 __be32 *p;
3401
3402 if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U)))
3403 return -EIO;
3404 if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) {
3405 p = xdr_inline_decode(xdr, 4);
3406 if (unlikely(!p))
3407 goto out_overflow;
3408 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
Trond Myklebustee7b75f2011-06-16 13:15:41 -04003409 *res = -be32_to_cpup(p);
Bryan Schumakerae42c702010-10-21 16:33:17 -04003410 }
3411 return 0;
3412out_overflow:
3413 print_overflow_msg(__func__, xdr);
3414 return -EIO;
3415}
3416
3417static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh)
3418{
3419 __be32 *p;
3420 int len;
3421
Trond Myklebust7ad07352010-10-23 15:34:20 -04003422 if (fh != NULL)
3423 memset(fh, 0, sizeof(*fh));
Bryan Schumakerae42c702010-10-21 16:33:17 -04003424
3425 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U)))
3426 return -EIO;
3427 if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) {
3428 p = xdr_inline_decode(xdr, 4);
3429 if (unlikely(!p))
3430 goto out_overflow;
3431 len = be32_to_cpup(p);
3432 if (len > NFS4_FHSIZE)
3433 return -EIO;
Bryan Schumakerae42c702010-10-21 16:33:17 -04003434 p = xdr_inline_decode(xdr, len);
3435 if (unlikely(!p))
3436 goto out_overflow;
Trond Myklebust7ad07352010-10-23 15:34:20 -04003437 if (fh != NULL) {
3438 memcpy(fh->data, p, len);
3439 fh->size = len;
3440 }
Bryan Schumakerae42c702010-10-21 16:33:17 -04003441 bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE;
3442 }
3443 return 0;
3444out_overflow:
3445 print_overflow_msg(__func__, xdr);
3446 return -EIO;
3447}
3448
Linus Torvalds1da177e2005-04-16 15:20:36 -07003449static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3450{
Al Viro8687b632006-10-19 23:28:48 -07003451 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003452
Malahal Nainenia1800ac2014-01-27 15:31:09 -06003453 *res = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003454 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
3455 return -EIO;
3456 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003457 p = xdr_inline_decode(xdr, 4);
3458 if (unlikely(!p))
3459 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003460 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003461 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
3462 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003463 dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003464 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003465out_overflow:
3466 print_overflow_msg(__func__, xdr);
3467 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003468}
3469
3470static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3471{
Al Viro8687b632006-10-19 23:28:48 -07003472 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003473 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003474
3475 *fileid = 0;
3476 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
3477 return -EIO;
3478 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003479 p = xdr_inline_decode(xdr, 8);
3480 if (unlikely(!p))
3481 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003482 xdr_decode_hyper(p, fileid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003483 bitmap[0] &= ~FATTR4_WORD0_FILEID;
Trond Myklebust409924e2009-03-11 14:10:27 -04003484 ret = NFS_ATTR_FATTR_FILEID;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003485 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003486 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
Trond Myklebust409924e2009-03-11 14:10:27 -04003487 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003488out_overflow:
3489 print_overflow_msg(__func__, xdr);
3490 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003491}
3492
Manoj Naik99baf622006-06-09 09:34:24 -04003493static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3494{
Al Viro8687b632006-10-19 23:28:48 -07003495 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003496 int ret = 0;
Manoj Naik99baf622006-06-09 09:34:24 -04003497
3498 *fileid = 0;
3499 if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U)))
3500 return -EIO;
3501 if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003502 p = xdr_inline_decode(xdr, 8);
3503 if (unlikely(!p))
3504 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003505 xdr_decode_hyper(p, fileid);
Manoj Naik99baf622006-06-09 09:34:24 -04003506 bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
Trond Myklebust28331a42011-04-27 13:47:52 -04003507 ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID;
Manoj Naik99baf622006-06-09 09:34:24 -04003508 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003509 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
Trond Myklebust409924e2009-03-11 14:10:27 -04003510 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003511out_overflow:
3512 print_overflow_msg(__func__, xdr);
3513 return -EIO;
Manoj Naik99baf622006-06-09 09:34:24 -04003514}
3515
Linus Torvalds1da177e2005-04-16 15:20:36 -07003516static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3517{
Al Viro8687b632006-10-19 23:28:48 -07003518 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003519 int status = 0;
3520
3521 *res = 0;
3522 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
3523 return -EIO;
3524 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003525 p = xdr_inline_decode(xdr, 8);
3526 if (unlikely(!p))
3527 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003528 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003529 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
3530 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003531 dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003532 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003533out_overflow:
3534 print_overflow_msg(__func__, xdr);
3535 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003536}
3537
3538static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3539{
Al Viro8687b632006-10-19 23:28:48 -07003540 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003541 int status = 0;
3542
3543 *res = 0;
3544 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
3545 return -EIO;
3546 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003547 p = xdr_inline_decode(xdr, 8);
3548 if (unlikely(!p))
3549 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003550 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003551 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
3552 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003553 dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003554 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003555out_overflow:
3556 print_overflow_msg(__func__, xdr);
3557 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003558}
3559
3560static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3561{
Al Viro8687b632006-10-19 23:28:48 -07003562 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003563 int status = 0;
3564
3565 *res = 0;
3566 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
3567 return -EIO;
3568 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003569 p = xdr_inline_decode(xdr, 8);
3570 if (unlikely(!p))
3571 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003572 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003573 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
3574 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003575 dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003576 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003577out_overflow:
3578 print_overflow_msg(__func__, xdr);
3579 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003580}
3581
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003582static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
3583{
Chuck Lever464ad6b2007-10-26 13:32:08 -04003584 u32 n;
Al Viro8687b632006-10-19 23:28:48 -07003585 __be32 *p;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003586 int status = 0;
3587
Benny Halevyc0eae662009-08-14 17:20:14 +03003588 p = xdr_inline_decode(xdr, 4);
3589 if (unlikely(!p))
3590 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003591 n = be32_to_cpup(p);
Andy Adamson33a43f22006-06-09 09:34:30 -04003592 if (n == 0)
3593 goto root_path;
Chuck Lever02a29762012-03-01 17:00:31 -05003594 dprintk("pathname4: ");
Trond Myklebust809b4262013-03-27 11:54:45 -04003595 if (n > NFS4_PATHNAME_MAXCOMPONENTS) {
3596 dprintk("cannot parse %d components in path\n", n);
3597 goto out_eio;
3598 }
3599 for (path->ncomponents = 0; path->ncomponents < n; path->ncomponents++) {
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003600 struct nfs4_string *component = &path->components[path->ncomponents];
3601 status = decode_opaque_inline(xdr, &component->len, &component->data);
3602 if (unlikely(status != 0))
3603 goto out_eio;
Trond Myklebust95a13f72012-03-14 21:55:01 -04003604 ifdebug (XDR)
Chuck Lever02a29762012-03-01 17:00:31 -05003605 pr_cont("%s%.*s ",
3606 (path->ncomponents != n ? "/ " : ""),
3607 component->len, component->data);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003608 }
3609out:
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003610 return status;
Andy Adamson33a43f22006-06-09 09:34:30 -04003611root_path:
3612/* a root pathname is sent as a zero component4 */
3613 path->ncomponents = 1;
3614 path->components[0].len=0;
3615 path->components[0].data=NULL;
Chuck Lever02a29762012-03-01 17:00:31 -05003616 dprintk("pathname4: /\n");
Andy Adamson33a43f22006-06-09 09:34:30 -04003617 goto out;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003618out_eio:
3619 dprintk(" status %d", status);
3620 status = -EIO;
3621 goto out;
Benny Halevyc0eae662009-08-14 17:20:14 +03003622out_overflow:
3623 print_overflow_msg(__func__, xdr);
3624 return -EIO;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003625}
3626
3627static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
Trond Myklebust683b57b2006-06-09 09:34:22 -04003628{
3629 int n;
Al Viro8687b632006-10-19 23:28:48 -07003630 __be32 *p;
Trond Myklebust683b57b2006-06-09 09:34:22 -04003631 int status = -EIO;
3632
3633 if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U)))
3634 goto out;
3635 status = 0;
3636 if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS)))
3637 goto out;
Trond Myklebust8b7e3f42012-01-30 15:43:56 -05003638 status = -EIO;
3639 /* Ignore borken servers that return unrequested attrs */
3640 if (unlikely(res == NULL))
3641 goto out;
Chuck Lever02a29762012-03-01 17:00:31 -05003642 dprintk("%s: fsroot:\n", __func__);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003643 status = decode_pathname(xdr, &res->fs_path);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003644 if (unlikely(status != 0))
3645 goto out;
Benny Halevyc0eae662009-08-14 17:20:14 +03003646 p = xdr_inline_decode(xdr, 4);
3647 if (unlikely(!p))
3648 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003649 n = be32_to_cpup(p);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003650 if (n <= 0)
3651 goto out_eio;
Trond Myklebust809b4262013-03-27 11:54:45 -04003652 for (res->nlocations = 0; res->nlocations < n; res->nlocations++) {
Chuck Lever464ad6b2007-10-26 13:32:08 -04003653 u32 m;
Trond Myklebust809b4262013-03-27 11:54:45 -04003654 struct nfs4_fs_location *loc;
Trond Myklebust683b57b2006-06-09 09:34:22 -04003655
Trond Myklebust809b4262013-03-27 11:54:45 -04003656 if (res->nlocations == NFS4_FS_LOCATIONS_MAXENTRIES)
3657 break;
3658 loc = &res->locations[res->nlocations];
Benny Halevyc0eae662009-08-14 17:20:14 +03003659 p = xdr_inline_decode(xdr, 4);
3660 if (unlikely(!p))
3661 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003662 m = be32_to_cpup(p);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003663
Chuck Lever02a29762012-03-01 17:00:31 -05003664 dprintk("%s: servers:\n", __func__);
Trond Myklebust809b4262013-03-27 11:54:45 -04003665 for (loc->nservers = 0; loc->nservers < m; loc->nservers++) {
3666 struct nfs4_string *server;
3667
3668 if (loc->nservers == NFS4_FS_LOCATION_MAXSERVERS) {
Chuck Lever464ad6b2007-10-26 13:32:08 -04003669 unsigned int i;
3670 dprintk("%s: using first %u of %u servers "
3671 "returned for location %u\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003672 __func__,
Chuck Lever464ad6b2007-10-26 13:32:08 -04003673 NFS4_FS_LOCATION_MAXSERVERS,
3674 m, res->nlocations);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003675 for (i = loc->nservers; i < m; i++) {
Trond Myklebust2e42c3e2007-05-14 17:20:41 -04003676 unsigned int len;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003677 char *data;
3678 status = decode_opaque_inline(xdr, &len, &data);
3679 if (unlikely(status != 0))
3680 goto out_eio;
3681 }
Trond Myklebust809b4262013-03-27 11:54:45 -04003682 break;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003683 }
Trond Myklebust809b4262013-03-27 11:54:45 -04003684 server = &loc->servers[loc->nservers];
3685 status = decode_opaque_inline(xdr, &server->len, &server->data);
3686 if (unlikely(status != 0))
3687 goto out_eio;
3688 dprintk("%s ", server->data);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003689 }
3690 status = decode_pathname(xdr, &loc->rootpath);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003691 if (unlikely(status != 0))
3692 goto out_eio;
Trond Myklebust683b57b2006-06-09 09:34:22 -04003693 }
Trond Myklebust409924e2009-03-11 14:10:27 -04003694 if (res->nlocations != 0)
Chuck Lever81934dd2012-03-01 17:01:57 -05003695 status = NFS_ATTR_FATTR_V4_LOCATIONS;
Trond Myklebust683b57b2006-06-09 09:34:22 -04003696out:
Harvey Harrison3110ff82008-05-02 13:42:44 -07003697 dprintk("%s: fs_locations done, error = %d\n", __func__, status);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003698 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003699out_overflow:
3700 print_overflow_msg(__func__, xdr);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003701out_eio:
3702 status = -EIO;
3703 goto out;
3704}
3705
Linus Torvalds1da177e2005-04-16 15:20:36 -07003706static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3707{
Al Viro8687b632006-10-19 23:28:48 -07003708 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003709 int status = 0;
3710
3711 *res = 0;
3712 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
3713 return -EIO;
3714 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003715 p = xdr_inline_decode(xdr, 8);
3716 if (unlikely(!p))
3717 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003718 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003719 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
3720 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003721 dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003722 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003723out_overflow:
3724 print_overflow_msg(__func__, xdr);
3725 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003726}
3727
3728static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
3729{
Al Viro8687b632006-10-19 23:28:48 -07003730 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003731 int status = 0;
3732
3733 *maxlink = 1;
3734 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
3735 return -EIO;
3736 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003737 p = xdr_inline_decode(xdr, 4);
3738 if (unlikely(!p))
3739 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003740 *maxlink = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003741 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
3742 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003743 dprintk("%s: maxlink=%u\n", __func__, *maxlink);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003744 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003745out_overflow:
3746 print_overflow_msg(__func__, xdr);
3747 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003748}
3749
3750static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
3751{
Al Viro8687b632006-10-19 23:28:48 -07003752 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003753 int status = 0;
3754
3755 *maxname = 1024;
3756 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
3757 return -EIO;
3758 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003759 p = xdr_inline_decode(xdr, 4);
3760 if (unlikely(!p))
3761 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003762 *maxname = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003763 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
3764 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003765 dprintk("%s: maxname=%u\n", __func__, *maxname);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003766 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003767out_overflow:
3768 print_overflow_msg(__func__, xdr);
3769 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003770}
3771
3772static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3773{
Al Viro8687b632006-10-19 23:28:48 -07003774 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003775 int status = 0;
3776
3777 *res = 1024;
3778 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
3779 return -EIO;
3780 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
3781 uint64_t maxread;
Benny Halevyc0eae662009-08-14 17:20:14 +03003782 p = xdr_inline_decode(xdr, 8);
3783 if (unlikely(!p))
3784 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003785 xdr_decode_hyper(p, &maxread);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003786 if (maxread > 0x7FFFFFFF)
3787 maxread = 0x7FFFFFFF;
3788 *res = (uint32_t)maxread;
3789 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
3790 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003791 dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003792 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003793out_overflow:
3794 print_overflow_msg(__func__, xdr);
3795 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003796}
3797
3798static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3799{
Al Viro8687b632006-10-19 23:28:48 -07003800 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003801 int status = 0;
3802
3803 *res = 1024;
3804 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
3805 return -EIO;
3806 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
3807 uint64_t maxwrite;
Benny Halevyc0eae662009-08-14 17:20:14 +03003808 p = xdr_inline_decode(xdr, 8);
3809 if (unlikely(!p))
3810 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003811 xdr_decode_hyper(p, &maxwrite);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003812 if (maxwrite > 0x7FFFFFFF)
3813 maxwrite = 0x7FFFFFFF;
3814 *res = (uint32_t)maxwrite;
3815 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
3816 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003817 dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003818 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003819out_overflow:
3820 print_overflow_msg(__func__, xdr);
3821 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003822}
3823
Trond Myklebustbca79472009-03-11 14:10:26 -04003824static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003825{
Trond Myklebustbca79472009-03-11 14:10:26 -04003826 uint32_t tmp;
Al Viro8687b632006-10-19 23:28:48 -07003827 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003828 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003829
3830 *mode = 0;
3831 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
3832 return -EIO;
3833 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003834 p = xdr_inline_decode(xdr, 4);
3835 if (unlikely(!p))
3836 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003837 tmp = be32_to_cpup(p);
Trond Myklebustbca79472009-03-11 14:10:26 -04003838 *mode = tmp & ~S_IFMT;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003839 bitmap[1] &= ~FATTR4_WORD1_MODE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003840 ret = NFS_ATTR_FATTR_MODE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003841 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003842 dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode);
Trond Myklebust409924e2009-03-11 14:10:27 -04003843 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003844out_overflow:
3845 print_overflow_msg(__func__, xdr);
3846 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003847}
3848
3849static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
3850{
Al Viro8687b632006-10-19 23:28:48 -07003851 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003852 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003853
3854 *nlink = 1;
3855 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
3856 return -EIO;
3857 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003858 p = xdr_inline_decode(xdr, 4);
3859 if (unlikely(!p))
3860 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003861 *nlink = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003862 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
Trond Myklebust409924e2009-03-11 14:10:27 -04003863 ret = NFS_ATTR_FATTR_NLINK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003864 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003865 dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink);
Trond Myklebust409924e2009-03-11 14:10:27 -04003866 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003867out_overflow:
3868 print_overflow_msg(__func__, xdr);
3869 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003870}
3871
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003872static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
Eric W. Biedermane5782072013-02-01 14:22:02 -08003873 const struct nfs_server *server, kuid_t *uid,
Trond Myklebust6926afd2012-01-07 13:22:46 -05003874 struct nfs4_string *owner_name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003875{
Al Viro8687b632006-10-19 23:28:48 -07003876 uint32_t len;
3877 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003878 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003879
Eric W. Biedermane5782072013-02-01 14:22:02 -08003880 *uid = make_kuid(&init_user_ns, -2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003881 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
3882 return -EIO;
3883 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003884 p = xdr_inline_decode(xdr, 4);
3885 if (unlikely(!p))
3886 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003887 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003888 p = xdr_inline_decode(xdr, len);
3889 if (unlikely(!p))
3890 goto out_overflow;
Trond Myklebust6926afd2012-01-07 13:22:46 -05003891 if (owner_name != NULL) {
3892 owner_name->data = kmemdup(p, len, GFP_NOWAIT);
3893 if (owner_name->data != NULL) {
3894 owner_name->len = len;
3895 ret = NFS_ATTR_FATTR_OWNER_NAME;
3896 }
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003897 } else if (len < XDR_MAX_NETOBJ) {
Trond Myklebuste4fd72a2011-02-22 15:44:31 -08003898 if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0)
Trond Myklebust409924e2009-03-11 14:10:27 -04003899 ret = NFS_ATTR_FATTR_OWNER;
3900 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07003901 dprintk("%s: nfs_map_name_to_uid failed!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003902 __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003903 } else
Chuck Leverfe82a182007-09-11 18:01:10 -04003904 dprintk("%s: name too long (%u)!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003905 __func__, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003906 bitmap[1] &= ~FATTR4_WORD1_OWNER;
3907 }
Eric W. Biedermane5782072013-02-01 14:22:02 -08003908 dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid));
Trond Myklebust409924e2009-03-11 14:10:27 -04003909 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003910out_overflow:
3911 print_overflow_msg(__func__, xdr);
3912 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003913}
3914
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003915static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
Eric W. Biedermane5782072013-02-01 14:22:02 -08003916 const struct nfs_server *server, kgid_t *gid,
Trond Myklebust6926afd2012-01-07 13:22:46 -05003917 struct nfs4_string *group_name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003918{
Al Viro8687b632006-10-19 23:28:48 -07003919 uint32_t len;
3920 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003921 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003922
Eric W. Biedermane5782072013-02-01 14:22:02 -08003923 *gid = make_kgid(&init_user_ns, -2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003924 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
3925 return -EIO;
3926 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003927 p = xdr_inline_decode(xdr, 4);
3928 if (unlikely(!p))
3929 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003930 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003931 p = xdr_inline_decode(xdr, len);
3932 if (unlikely(!p))
3933 goto out_overflow;
Trond Myklebust6926afd2012-01-07 13:22:46 -05003934 if (group_name != NULL) {
3935 group_name->data = kmemdup(p, len, GFP_NOWAIT);
3936 if (group_name->data != NULL) {
3937 group_name->len = len;
3938 ret = NFS_ATTR_FATTR_GROUP_NAME;
3939 }
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003940 } else if (len < XDR_MAX_NETOBJ) {
Trond Myklebuste4fd72a2011-02-22 15:44:31 -08003941 if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0)
Trond Myklebust409924e2009-03-11 14:10:27 -04003942 ret = NFS_ATTR_FATTR_GROUP;
3943 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07003944 dprintk("%s: nfs_map_group_to_gid failed!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003945 __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003946 } else
Chuck Leverfe82a182007-09-11 18:01:10 -04003947 dprintk("%s: name too long (%u)!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003948 __func__, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003949 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
3950 }
Eric W. Biedermane5782072013-02-01 14:22:02 -08003951 dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid));
Trond Myklebust409924e2009-03-11 14:10:27 -04003952 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003953out_overflow:
3954 print_overflow_msg(__func__, xdr);
3955 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003956}
3957
3958static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
3959{
Al Viro8687b632006-10-19 23:28:48 -07003960 uint32_t major = 0, minor = 0;
3961 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003962 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003963
3964 *rdev = MKDEV(0,0);
3965 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
3966 return -EIO;
3967 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
3968 dev_t tmp;
3969
Benny Halevyc0eae662009-08-14 17:20:14 +03003970 p = xdr_inline_decode(xdr, 8);
3971 if (unlikely(!p))
3972 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003973 major = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03003974 minor = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003975 tmp = MKDEV(major, minor);
3976 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
3977 *rdev = tmp;
3978 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
Trond Myklebust409924e2009-03-11 14:10:27 -04003979 ret = NFS_ATTR_FATTR_RDEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003980 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003981 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor);
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_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3989{
Al Viro8687b632006-10-19 23:28:48 -07003990 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003991 int status = 0;
3992
3993 *res = 0;
3994 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
3995 return -EIO;
3996 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003997 p = xdr_inline_decode(xdr, 8);
3998 if (unlikely(!p))
3999 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004000 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004001 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
4002 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07004003 dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004004 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004005out_overflow:
4006 print_overflow_msg(__func__, xdr);
4007 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004008}
4009
4010static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
4011{
Al Viro8687b632006-10-19 23:28:48 -07004012 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004013 int status = 0;
4014
4015 *res = 0;
4016 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
4017 return -EIO;
4018 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03004019 p = xdr_inline_decode(xdr, 8);
4020 if (unlikely(!p))
4021 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004022 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004023 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
4024 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07004025 dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004026 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004027out_overflow:
4028 print_overflow_msg(__func__, xdr);
4029 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004030}
4031
4032static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
4033{
Al Viro8687b632006-10-19 23:28:48 -07004034 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004035 int status = 0;
4036
4037 *res = 0;
4038 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
4039 return -EIO;
4040 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03004041 p = xdr_inline_decode(xdr, 8);
4042 if (unlikely(!p))
4043 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004044 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004045 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
4046 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07004047 dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004048 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004049out_overflow:
4050 print_overflow_msg(__func__, xdr);
4051 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004052}
4053
4054static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
4055{
Al Viro8687b632006-10-19 23:28:48 -07004056 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04004057 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004058
4059 *used = 0;
4060 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
4061 return -EIO;
4062 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03004063 p = xdr_inline_decode(xdr, 8);
4064 if (unlikely(!p))
4065 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004066 xdr_decode_hyper(p, used);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004067 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
Trond Myklebust409924e2009-03-11 14:10:27 -04004068 ret = NFS_ATTR_FATTR_SPACE_USED;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004069 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07004070 dprintk("%s: space used=%Lu\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07004071 (unsigned long long)*used);
Trond Myklebust409924e2009-03-11 14:10:27 -04004072 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03004073out_overflow:
4074 print_overflow_msg(__func__, xdr);
4075 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004076}
4077
4078static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
4079{
Al Viro8687b632006-10-19 23:28:48 -07004080 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004081 uint64_t sec;
4082 uint32_t nsec;
4083
Benny Halevyc0eae662009-08-14 17:20:14 +03004084 p = xdr_inline_decode(xdr, 12);
4085 if (unlikely(!p))
4086 goto out_overflow;
Benny Halevy3ceb4db2009-08-14 17:19:41 +03004087 p = xdr_decode_hyper(p, &sec);
Benny Halevycccddf42009-08-14 17:20:19 +03004088 nsec = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004089 time->tv_sec = (time_t)sec;
4090 time->tv_nsec = (long)nsec;
4091 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004092out_overflow:
4093 print_overflow_msg(__func__, xdr);
4094 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004095}
4096
4097static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4098{
4099 int status = 0;
4100
4101 time->tv_sec = 0;
4102 time->tv_nsec = 0;
4103 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
4104 return -EIO;
4105 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
4106 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04004107 if (status == 0)
4108 status = NFS_ATTR_FATTR_ATIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004109 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
4110 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07004111 dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004112 return status;
4113}
4114
4115static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4116{
4117 int status = 0;
4118
4119 time->tv_sec = 0;
4120 time->tv_nsec = 0;
4121 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
4122 return -EIO;
4123 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
4124 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04004125 if (status == 0)
4126 status = NFS_ATTR_FATTR_CTIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004127 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
4128 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07004129 dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004130 return status;
4131}
4132
Ricardo Labiaga55b6e772010-10-12 16:30:06 -07004133static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap,
4134 struct timespec *time)
4135{
4136 int status = 0;
4137
4138 time->tv_sec = 0;
4139 time->tv_nsec = 0;
4140 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U)))
4141 return -EIO;
4142 if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) {
4143 status = decode_attr_time(xdr, time);
4144 bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA;
4145 }
4146 dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec,
4147 (long)time->tv_nsec);
4148 return status;
4149}
4150
David Quigleyaa9c2662013-05-22 12:50:44 -04004151static int decode_attr_security_label(struct xdr_stream *xdr, uint32_t *bitmap,
4152 struct nfs4_label *label)
4153{
4154 uint32_t pi = 0;
4155 uint32_t lfs = 0;
4156 __u32 len;
4157 __be32 *p;
4158 int status = 0;
4159
4160 if (unlikely(bitmap[2] & (FATTR4_WORD2_SECURITY_LABEL - 1U)))
4161 return -EIO;
4162 if (likely(bitmap[2] & FATTR4_WORD2_SECURITY_LABEL)) {
4163 p = xdr_inline_decode(xdr, 4);
4164 if (unlikely(!p))
4165 goto out_overflow;
4166 lfs = be32_to_cpup(p++);
4167 p = xdr_inline_decode(xdr, 4);
4168 if (unlikely(!p))
4169 goto out_overflow;
4170 pi = be32_to_cpup(p++);
4171 p = xdr_inline_decode(xdr, 4);
4172 if (unlikely(!p))
4173 goto out_overflow;
4174 len = be32_to_cpup(p++);
4175 p = xdr_inline_decode(xdr, len);
4176 if (unlikely(!p))
4177 goto out_overflow;
4178 if (len < NFS4_MAXLABELLEN) {
4179 if (label) {
4180 memcpy(label->label, p, len);
4181 label->len = len;
4182 label->pi = pi;
4183 label->lfs = lfs;
4184 status = NFS_ATTR_FATTR_V4_SECURITY_LABEL;
4185 }
4186 bitmap[2] &= ~FATTR4_WORD2_SECURITY_LABEL;
4187 } else
4188 printk(KERN_WARNING "%s: label too long (%u)!\n",
4189 __func__, len);
4190 }
4191 if (label && label->label)
4192 dprintk("%s: label=%s, len=%d, PI=%d, LFS=%d\n", __func__,
4193 (char *)label->label, label->len, label->pi, label->lfs);
4194 return status;
4195
4196out_overflow:
4197 print_overflow_msg(__func__, xdr);
4198 return -EIO;
4199}
4200
Linus Torvalds1da177e2005-04-16 15:20:36 -07004201static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4202{
4203 int status = 0;
4204
4205 time->tv_sec = 0;
4206 time->tv_nsec = 0;
4207 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
4208 return -EIO;
4209 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
4210 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04004211 if (status == 0)
4212 status = NFS_ATTR_FATTR_MTIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004213 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
4214 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07004215 dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004216 return status;
4217}
4218
Trond Myklebust256e48b2012-06-21 11:18:13 -04004219static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004220{
4221 unsigned int attrwords = XDR_QUADLEN(attrlen);
Trond Myklebust256e48b2012-06-21 11:18:13 -04004222 unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004223
4224 if (unlikely(attrwords != nwords)) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004225 dprintk("%s: server returned incorrect attribute length: "
4226 "%u %c %u\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07004227 __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07004228 attrwords << 2,
4229 (attrwords < nwords) ? '<' : '>',
4230 nwords << 2);
4231 return -EIO;
4232 }
4233 return 0;
4234}
4235
4236static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4237{
Al Viro8687b632006-10-19 23:28:48 -07004238 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004239
Benny Halevyc0eae662009-08-14 17:20:14 +03004240 p = xdr_inline_decode(xdr, 20);
4241 if (unlikely(!p))
4242 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004243 cinfo->atomic = be32_to_cpup(p++);
Benny Halevy3ceb4db2009-08-14 17:19:41 +03004244 p = xdr_decode_hyper(p, &cinfo->before);
Benny Halevycccddf42009-08-14 17:20:19 +03004245 xdr_decode_hyper(p, &cinfo->after);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004246 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004247out_overflow:
4248 print_overflow_msg(__func__, xdr);
4249 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004250}
4251
Weston Andros Adamson6168f622012-09-10 14:00:46 -04004252static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004253{
Al Viro8687b632006-10-19 23:28:48 -07004254 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004255 uint32_t supp, acc;
4256 int status;
4257
4258 status = decode_op_hdr(xdr, OP_ACCESS);
4259 if (status)
4260 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004261 p = xdr_inline_decode(xdr, 8);
4262 if (unlikely(!p))
4263 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004264 supp = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004265 acc = be32_to_cpup(p);
Weston Andros Adamson6168f622012-09-10 14:00:46 -04004266 *supported = supp;
4267 *access = acc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004268 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004269out_overflow:
4270 print_overflow_msg(__func__, xdr);
4271 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004272}
4273
Benny Halevy07d30432009-08-14 17:19:52 +03004274static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004275{
Al Viro8687b632006-10-19 23:28:48 -07004276 __be32 *p;
Benny Halevy07d30432009-08-14 17:19:52 +03004277
4278 p = xdr_inline_decode(xdr, len);
4279 if (likely(p)) {
4280 memcpy(buf, p, len);
4281 return 0;
4282 }
4283 print_overflow_msg(__func__, xdr);
4284 return -EIO;
4285}
4286
4287static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
4288{
Trond Myklebust2d2f24a2012-03-04 18:13:57 -05004289 return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004290}
4291
4292static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
4293{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004294 int status;
4295
4296 status = decode_op_hdr(xdr, OP_CLOSE);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004297 if (status != -EIO)
4298 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004299 if (!status)
4300 status = decode_stateid(xdr, &res->stateid);
4301 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004302}
4303
Benny Halevydb942bb2009-08-14 17:19:56 +03004304static int decode_verifier(struct xdr_stream *xdr, void *verifier)
4305{
Chuck Levercd937102012-03-02 17:14:31 -05004306 return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004307}
4308
Trond Myklebust2f2c63b2012-06-08 11:56:09 -04004309static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier)
4310{
4311 return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE);
4312}
4313
Fred Isaman0b7c0152012-04-20 14:47:39 -04004314static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004315{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004316 int status;
4317
4318 status = decode_op_hdr(xdr, OP_COMMIT);
Benny Halevydb942bb2009-08-14 17:19:56 +03004319 if (!status)
Trond Myklebust2f2c63b2012-06-08 11:56:09 -04004320 status = decode_write_verifier(xdr, &res->verf->verifier);
Benny Halevydb942bb2009-08-14 17:19:56 +03004321 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004322}
4323
4324static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4325{
Al Viro8687b632006-10-19 23:28:48 -07004326 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004327 uint32_t bmlen;
4328 int status;
4329
4330 status = decode_op_hdr(xdr, OP_CREATE);
4331 if (status)
4332 return status;
4333 if ((status = decode_change_info(xdr, cinfo)))
4334 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004335 p = xdr_inline_decode(xdr, 4);
4336 if (unlikely(!p))
4337 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004338 bmlen = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03004339 p = xdr_inline_decode(xdr, bmlen << 2);
4340 if (likely(p))
4341 return 0;
4342out_overflow:
4343 print_overflow_msg(__func__, xdr);
4344 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004345}
4346
4347static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
4348{
Trond Myklebust256e48b2012-06-21 11:18:13 -04004349 unsigned int savep;
Fred Isamandae100c2011-07-30 20:52:37 -04004350 uint32_t attrlen, bitmap[3] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07004351 int status;
4352
4353 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4354 goto xdr_error;
4355 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4356 goto xdr_error;
4357 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4358 goto xdr_error;
4359 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
4360 goto xdr_error;
Chuck Lever264e6352012-03-01 17:02:05 -05004361 if ((status = decode_attr_fh_expire_type(xdr, bitmap,
4362 &res->fh_expire_type)) != 0)
4363 goto xdr_error;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004364 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
4365 goto xdr_error;
4366 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
4367 goto xdr_error;
4368 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
4369 goto xdr_error;
4370 status = verify_attr_len(xdr, savep, attrlen);
4371xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004372 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004373 return status;
4374}
Andy Adamson6c0195a2008-12-23 16:06:15 -05004375
Linus Torvalds1da177e2005-04-16 15:20:36 -07004376static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
4377{
Trond Myklebust256e48b2012-06-21 11:18:13 -04004378 unsigned int savep;
Fred Isamandae100c2011-07-30 20:52:37 -04004379 uint32_t attrlen, bitmap[3] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07004380 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004381
Linus Torvalds1da177e2005-04-16 15:20:36 -07004382 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4383 goto xdr_error;
4384 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4385 goto xdr_error;
4386 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4387 goto xdr_error;
4388
4389 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
4390 goto xdr_error;
4391 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
4392 goto xdr_error;
4393 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
4394 goto xdr_error;
4395 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
4396 goto xdr_error;
4397 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
4398 goto xdr_error;
4399 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
4400 goto xdr_error;
4401
4402 status = verify_attr_len(xdr, savep, attrlen);
4403xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004404 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004405 return status;
4406}
4407
4408static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
4409{
Trond Myklebust256e48b2012-06-21 11:18:13 -04004410 unsigned int savep;
Fred Isamandae100c2011-07-30 20:52:37 -04004411 uint32_t attrlen, bitmap[3] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07004412 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004413
Linus Torvalds1da177e2005-04-16 15:20:36 -07004414 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4415 goto xdr_error;
4416 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4417 goto xdr_error;
4418 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4419 goto xdr_error;
4420
4421 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
4422 goto xdr_error;
4423 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
4424 goto xdr_error;
4425
4426 status = verify_attr_len(xdr, savep, attrlen);
4427xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004428 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004429 return status;
4430}
4431
Andy Adamson88034c32012-05-23 05:02:34 -04004432static int decode_threshold_hint(struct xdr_stream *xdr,
4433 uint32_t *bitmap,
4434 uint64_t *res,
4435 uint32_t hint_bit)
4436{
4437 __be32 *p;
4438
4439 *res = 0;
4440 if (likely(bitmap[0] & hint_bit)) {
4441 p = xdr_inline_decode(xdr, 8);
4442 if (unlikely(!p))
4443 goto out_overflow;
4444 xdr_decode_hyper(p, res);
4445 }
4446 return 0;
4447out_overflow:
4448 print_overflow_msg(__func__, xdr);
4449 return -EIO;
4450}
4451
4452static int decode_first_threshold_item4(struct xdr_stream *xdr,
4453 struct nfs4_threshold *res)
4454{
Trond Myklebust256e48b2012-06-21 11:18:13 -04004455 __be32 *p;
4456 unsigned int savep;
Andy Adamson88034c32012-05-23 05:02:34 -04004457 uint32_t bitmap[3] = {0,}, attrlen;
4458 int status;
4459
4460 /* layout type */
4461 p = xdr_inline_decode(xdr, 4);
4462 if (unlikely(!p)) {
4463 print_overflow_msg(__func__, xdr);
4464 return -EIO;
4465 }
4466 res->l_type = be32_to_cpup(p);
4467
4468 /* thi_hintset bitmap */
4469 status = decode_attr_bitmap(xdr, bitmap);
4470 if (status < 0)
4471 goto xdr_error;
4472
4473 /* thi_hintlist length */
4474 status = decode_attr_length(xdr, &attrlen, &savep);
4475 if (status < 0)
4476 goto xdr_error;
4477 /* thi_hintlist */
4478 status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD);
4479 if (status < 0)
4480 goto xdr_error;
4481 status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR);
4482 if (status < 0)
4483 goto xdr_error;
4484 status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz,
4485 THRESHOLD_RD_IO);
4486 if (status < 0)
4487 goto xdr_error;
4488 status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz,
4489 THRESHOLD_WR_IO);
4490 if (status < 0)
4491 goto xdr_error;
4492
4493 status = verify_attr_len(xdr, savep, attrlen);
4494 res->bm = bitmap[0];
4495
4496 dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n",
4497 __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz,
4498 res->wr_io_sz);
4499xdr_error:
4500 dprintk("%s ret=%d!\n", __func__, status);
4501 return status;
4502}
4503
4504/*
4505 * Thresholds on pNFS direct I/O vrs MDS I/O
4506 */
4507static int decode_attr_mdsthreshold(struct xdr_stream *xdr,
4508 uint32_t *bitmap,
4509 struct nfs4_threshold *res)
4510{
4511 __be32 *p;
4512 int status = 0;
4513 uint32_t num;
4514
4515 if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U)))
4516 return -EIO;
Trond Myklebust029c5342012-06-05 09:35:44 -04004517 if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) {
Trond Myklebust1549210f2012-06-05 09:16:47 -04004518 /* Did the server return an unrequested attribute? */
4519 if (unlikely(res == NULL))
4520 return -EREMOTEIO;
Andy Adamson88034c32012-05-23 05:02:34 -04004521 p = xdr_inline_decode(xdr, 4);
4522 if (unlikely(!p))
4523 goto out_overflow;
4524 num = be32_to_cpup(p);
4525 if (num == 0)
4526 return 0;
4527 if (num > 1)
4528 printk(KERN_INFO "%s: Warning: Multiple pNFS layout "
4529 "drivers per filesystem not supported\n",
4530 __func__);
4531
4532 status = decode_first_threshold_item4(xdr, res);
Trond Myklebust029c5342012-06-05 09:35:44 -04004533 bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD;
Andy Adamson88034c32012-05-23 05:02:34 -04004534 }
4535 return status;
4536out_overflow:
4537 print_overflow_msg(__func__, xdr);
4538 return -EIO;
4539}
4540
Bryan Schumakerae42c702010-10-21 16:33:17 -04004541static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap,
4542 struct nfs_fattr *fattr, struct nfs_fh *fh,
David Quigleyaa9c2662013-05-22 12:50:44 -04004543 struct nfs4_fs_locations *fs_loc, struct nfs4_label *label,
Trond Myklebust6926afd2012-01-07 13:22:46 -05004544 const struct nfs_server *server)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004545{
Trond Myklebustbca79472009-03-11 14:10:26 -04004546 int status;
4547 umode_t fmode = 0;
Bryan Schumakerae42c702010-10-21 16:33:17 -04004548 uint32_t type;
Trond Myklebustee7b75f2011-06-16 13:15:41 -04004549 int32_t err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004550
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004551 status = decode_attr_type(xdr, bitmap, &type);
4552 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004553 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004554 fattr->mode = 0;
4555 if (status != 0) {
4556 fattr->mode |= nfs_type2fmt[type];
4557 fattr->valid |= status;
4558 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004559
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004560 status = decode_attr_change(xdr, bitmap, &fattr->change_attr);
4561 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004562 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004563 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004564
4565 status = decode_attr_size(xdr, bitmap, &fattr->size);
4566 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004567 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004568 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004569
4570 status = decode_attr_fsid(xdr, bitmap, &fattr->fsid);
4571 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004572 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004573 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004574
Trond Myklebustee7b75f2011-06-16 13:15:41 -04004575 err = 0;
4576 status = decode_attr_error(xdr, bitmap, &err);
Bryan Schumakerae42c702010-10-21 16:33:17 -04004577 if (status < 0)
4578 goto xdr_error;
4579
4580 status = decode_attr_filehandle(xdr, bitmap, fh);
4581 if (status < 0)
4582 goto xdr_error;
4583
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004584 status = decode_attr_fileid(xdr, bitmap, &fattr->fileid);
4585 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004586 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004587 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004588
Trond Myklebust8b7e3f42012-01-30 15:43:56 -05004589 status = decode_attr_fs_locations(xdr, bitmap, fs_loc);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004590 if (status < 0)
Trond Myklebust683b57b2006-06-09 09:34:22 -04004591 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004592 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004593
4594 status = decode_attr_mode(xdr, bitmap, &fmode);
4595 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004596 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004597 if (status != 0) {
4598 fattr->mode |= fmode;
4599 fattr->valid |= status;
4600 }
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004601
4602 status = decode_attr_nlink(xdr, bitmap, &fattr->nlink);
4603 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004604 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004605 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004606
Trond Myklebust6926afd2012-01-07 13:22:46 -05004607 status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004608 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004609 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004610 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004611
Trond Myklebust6926afd2012-01-07 13:22:46 -05004612 status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004613 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004614 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004615 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004616
4617 status = decode_attr_rdev(xdr, bitmap, &fattr->rdev);
4618 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004619 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004620 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004621
4622 status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used);
4623 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004624 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004625 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004626
4627 status = decode_attr_time_access(xdr, bitmap, &fattr->atime);
4628 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004629 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004630 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004631
4632 status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime);
4633 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004634 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004635 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004636
4637 status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime);
4638 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004639 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004640 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004641
Trond Myklebust28331a42011-04-27 13:47:52 -04004642 status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004643 if (status < 0)
Manoj Naik99baf622006-06-09 09:34:24 -04004644 goto xdr_error;
Trond Myklebust28331a42011-04-27 13:47:52 -04004645 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004646
Andy Adamson88034c32012-05-23 05:02:34 -04004647 status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold);
4648 if (status < 0)
4649 goto xdr_error;
4650
David Quigleyaa9c2662013-05-22 12:50:44 -04004651 if (label) {
4652 status = decode_attr_security_label(xdr, bitmap, label);
4653 if (status < 0)
4654 goto xdr_error;
4655 fattr->valid |= status;
4656 }
4657
Bryan Schumakerae42c702010-10-21 16:33:17 -04004658xdr_error:
4659 dprintk("%s: xdr returned %d\n", __func__, -status);
4660 return status;
4661}
4662
4663static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr,
Trond Myklebust8b7e3f42012-01-30 15:43:56 -05004664 struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc,
David Quigleyaa9c2662013-05-22 12:50:44 -04004665 struct nfs4_label *label, const struct nfs_server *server)
Bryan Schumakerae42c702010-10-21 16:33:17 -04004666{
Trond Myklebust256e48b2012-06-21 11:18:13 -04004667 unsigned int savep;
Bryan Schumakerae42c702010-10-21 16:33:17 -04004668 uint32_t attrlen,
Fred Isamandae100c2011-07-30 20:52:37 -04004669 bitmap[3] = {0};
Bryan Schumakerae42c702010-10-21 16:33:17 -04004670 int status;
4671
4672 status = decode_op_hdr(xdr, OP_GETATTR);
4673 if (status < 0)
4674 goto xdr_error;
4675
4676 status = decode_attr_bitmap(xdr, bitmap);
4677 if (status < 0)
4678 goto xdr_error;
4679
4680 status = decode_attr_length(xdr, &attrlen, &savep);
4681 if (status < 0)
4682 goto xdr_error;
4683
David Quigleyaa9c2662013-05-22 12:50:44 -04004684 status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc,
4685 label, server);
Bryan Schumakerae42c702010-10-21 16:33:17 -04004686 if (status < 0)
4687 goto xdr_error;
4688
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004689 status = verify_attr_len(xdr, savep, attrlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004690xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004691 dprintk("%s: xdr returned %d\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004692 return status;
4693}
4694
David Quigleyaa9c2662013-05-22 12:50:44 -04004695static int decode_getfattr_label(struct xdr_stream *xdr, struct nfs_fattr *fattr,
4696 struct nfs4_label *label, const struct nfs_server *server)
4697{
4698 return decode_getfattr_generic(xdr, fattr, NULL, NULL, label, server);
4699}
4700
Bryan Schumakerae42c702010-10-21 16:33:17 -04004701static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr,
Trond Myklebust6926afd2012-01-07 13:22:46 -05004702 const struct nfs_server *server)
Bryan Schumakerae42c702010-10-21 16:33:17 -04004703{
David Quigleyaa9c2662013-05-22 12:50:44 -04004704 return decode_getfattr_generic(xdr, fattr, NULL, NULL, NULL, server);
Bryan Schumakerae42c702010-10-21 16:33:17 -04004705}
Linus Torvalds1da177e2005-04-16 15:20:36 -07004706
Andy Adamson504913f2010-10-20 00:17:57 -04004707/*
4708 * Decode potentially multiple layout types. Currently we only support
4709 * one layout driver per file system.
4710 */
4711static int decode_first_pnfs_layout_type(struct xdr_stream *xdr,
4712 uint32_t *layouttype)
4713{
Trond Myklebustb8a8a0d2013-08-20 21:08:56 -04004714 __be32 *p;
Andy Adamson504913f2010-10-20 00:17:57 -04004715 int num;
4716
4717 p = xdr_inline_decode(xdr, 4);
4718 if (unlikely(!p))
4719 goto out_overflow;
4720 num = be32_to_cpup(p);
4721
4722 /* pNFS is not supported by the underlying file system */
4723 if (num == 0) {
4724 *layouttype = 0;
4725 return 0;
4726 }
4727 if (num > 1)
Weston Andros Adamsona0308892012-01-26 13:32:23 -05004728 printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout "
4729 "drivers per filesystem not supported\n", __func__);
Andy Adamson504913f2010-10-20 00:17:57 -04004730
4731 /* Decode and set first layout type, move xdr->p past unused types */
4732 p = xdr_inline_decode(xdr, num * 4);
4733 if (unlikely(!p))
4734 goto out_overflow;
4735 *layouttype = be32_to_cpup(p);
4736 return 0;
4737out_overflow:
4738 print_overflow_msg(__func__, xdr);
4739 return -EIO;
4740}
4741
4742/*
4743 * The type of file system exported.
4744 * Note we must ensure that layouttype is set in any non-error case.
4745 */
4746static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap,
4747 uint32_t *layouttype)
4748{
4749 int status = 0;
4750
4751 dprintk("%s: bitmap is %x\n", __func__, bitmap[1]);
4752 if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U)))
4753 return -EIO;
4754 if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) {
4755 status = decode_first_pnfs_layout_type(xdr, layouttype);
4756 bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES;
4757 } else
4758 *layouttype = 0;
4759 return status;
4760}
4761
Fred Isamandae100c2011-07-30 20:52:37 -04004762/*
4763 * The prefered block size for layout directed io
4764 */
4765static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap,
4766 uint32_t *res)
4767{
4768 __be32 *p;
4769
4770 dprintk("%s: bitmap is %x\n", __func__, bitmap[2]);
4771 *res = 0;
4772 if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) {
4773 p = xdr_inline_decode(xdr, 4);
4774 if (unlikely(!p)) {
4775 print_overflow_msg(__func__, xdr);
4776 return -EIO;
4777 }
4778 *res = be32_to_cpup(p);
4779 bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE;
4780 }
4781 return 0;
4782}
4783
Linus Torvalds1da177e2005-04-16 15:20:36 -07004784static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
4785{
Trond Myklebust256e48b2012-06-21 11:18:13 -04004786 unsigned int savep;
Fred Isamandae100c2011-07-30 20:52:37 -04004787 uint32_t attrlen, bitmap[3];
Linus Torvalds1da177e2005-04-16 15:20:36 -07004788 int status;
4789
4790 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4791 goto xdr_error;
4792 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4793 goto xdr_error;
4794 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4795 goto xdr_error;
4796
4797 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
4798
4799 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
4800 goto xdr_error;
4801 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
4802 goto xdr_error;
4803 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
4804 goto xdr_error;
4805 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
4806 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
4807 goto xdr_error;
4808 fsinfo->wtpref = fsinfo->wtmax;
Ricardo Labiaga55b6e772010-10-12 16:30:06 -07004809 status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta);
4810 if (status != 0)
4811 goto xdr_error;
Andy Adamson504913f2010-10-20 00:17:57 -04004812 status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype);
4813 if (status != 0)
4814 goto xdr_error;
Fred Isamandae100c2011-07-30 20:52:37 -04004815 status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize);
4816 if (status)
4817 goto xdr_error;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004818
4819 status = verify_attr_len(xdr, savep, attrlen);
4820xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004821 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004822 return status;
4823}
4824
4825static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
4826{
Al Viro8687b632006-10-19 23:28:48 -07004827 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004828 uint32_t len;
4829 int status;
4830
Trond Myklebust99367812007-07-17 21:52:41 -04004831 /* Zero handle first to allow comparisons */
4832 memset(fh, 0, sizeof(*fh));
4833
Linus Torvalds1da177e2005-04-16 15:20:36 -07004834 status = decode_op_hdr(xdr, OP_GETFH);
4835 if (status)
4836 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004837
Benny Halevyc0eae662009-08-14 17:20:14 +03004838 p = xdr_inline_decode(xdr, 4);
4839 if (unlikely(!p))
4840 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004841 len = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004842 if (len > NFS4_FHSIZE)
4843 return -EIO;
4844 fh->size = len;
Benny Halevyc0eae662009-08-14 17:20:14 +03004845 p = xdr_inline_decode(xdr, len);
4846 if (unlikely(!p))
4847 goto out_overflow;
Benny Halevy99398d02009-08-14 17:20:05 +03004848 memcpy(fh->data, p, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004849 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004850out_overflow:
4851 print_overflow_msg(__func__, xdr);
4852 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004853}
4854
4855static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4856{
4857 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004858
Linus Torvalds1da177e2005-04-16 15:20:36 -07004859 status = decode_op_hdr(xdr, OP_LINK);
4860 if (status)
4861 return status;
4862 return decode_change_info(xdr, cinfo);
4863}
4864
4865/*
4866 * We create the owner, so we know a proper owner.id length is 4.
4867 */
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004868static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004869{
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004870 uint64_t offset, length, clientid;
Al Viro8687b632006-10-19 23:28:48 -07004871 __be32 *p;
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004872 uint32_t namelen, type;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004873
Bryan Schumakerbabddc72010-10-20 15:44:29 -04004874 p = xdr_inline_decode(xdr, 32); /* read 32 bytes */
Benny Halevyc0eae662009-08-14 17:20:14 +03004875 if (unlikely(!p))
4876 goto out_overflow;
Bryan Schumakerbabddc72010-10-20 15:44:29 -04004877 p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */
Benny Halevy3ceb4db2009-08-14 17:19:41 +03004878 p = xdr_decode_hyper(p, &length);
Bryan Schumakerbabddc72010-10-20 15:44:29 -04004879 type = be32_to_cpup(p++); /* 4 byte read */
4880 if (fl != NULL) { /* manipulate file lock */
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004881 fl->fl_start = (loff_t)offset;
4882 fl->fl_end = fl->fl_start + (loff_t)length - 1;
4883 if (length == ~(uint64_t)0)
4884 fl->fl_end = OFFSET_MAX;
4885 fl->fl_type = F_WRLCK;
4886 if (type & 1)
4887 fl->fl_type = F_RDLCK;
4888 fl->fl_pid = 0;
4889 }
Bryan Schumakerbabddc72010-10-20 15:44:29 -04004890 p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */
4891 namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */
4892 p = xdr_inline_decode(xdr, namelen); /* variable size field */
Benny Halevyc0eae662009-08-14 17:20:14 +03004893 if (likely(p))
4894 return -NFS4ERR_DENIED;
4895out_overflow:
4896 print_overflow_msg(__func__, xdr);
4897 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004898}
4899
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004900static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004901{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004902 int status;
4903
4904 status = decode_op_hdr(xdr, OP_LOCK);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004905 if (status == -EIO)
4906 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004907 if (status == 0) {
Benny Halevy07d30432009-08-14 17:19:52 +03004908 status = decode_stateid(xdr, &res->stateid);
4909 if (unlikely(status))
4910 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004911 } else if (status == -NFS4ERR_DENIED)
Trond Myklebustc1d51932008-04-07 13:20:54 -04004912 status = decode_lock_denied(xdr, NULL);
4913 if (res->open_seqid != NULL)
4914 nfs_increment_open_seqid(status, res->open_seqid);
4915 nfs_increment_lock_seqid(status, res->lock_seqid);
4916out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07004917 return status;
4918}
4919
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004920static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004921{
4922 int status;
4923 status = decode_op_hdr(xdr, OP_LOCKT);
4924 if (status == -NFS4ERR_DENIED)
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004925 return decode_lock_denied(xdr, res->denied);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004926 return status;
4927}
4928
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004929static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004930{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004931 int status;
4932
4933 status = decode_op_hdr(xdr, OP_LOCKU);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004934 if (status != -EIO)
4935 nfs_increment_lock_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004936 if (status == 0)
4937 status = decode_stateid(xdr, &res->stateid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004938 return status;
4939}
4940
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04004941static int decode_release_lockowner(struct xdr_stream *xdr)
4942{
4943 return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER);
4944}
4945
Linus Torvalds1da177e2005-04-16 15:20:36 -07004946static int decode_lookup(struct xdr_stream *xdr)
4947{
4948 return decode_op_hdr(xdr, OP_LOOKUP);
4949}
4950
4951/* This is too sick! */
4952static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
4953{
Andy Adamson05d564f2008-12-23 16:06:15 -05004954 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004955 uint32_t limit_type, nblocks, blocksize;
4956
Benny Halevyc0eae662009-08-14 17:20:14 +03004957 p = xdr_inline_decode(xdr, 12);
4958 if (unlikely(!p))
4959 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004960 limit_type = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004961 switch (limit_type) {
Andy Adamson05d564f2008-12-23 16:06:15 -05004962 case 1:
Benny Halevycccddf42009-08-14 17:20:19 +03004963 xdr_decode_hyper(p, maxsize);
Andy Adamson05d564f2008-12-23 16:06:15 -05004964 break;
4965 case 2:
Benny Halevy6f723f72009-08-14 17:19:37 +03004966 nblocks = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004967 blocksize = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05004968 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004969 }
4970 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004971out_overflow:
4972 print_overflow_msg(__func__, xdr);
4973 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004974}
4975
4976static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
4977{
Andy Adamson05d564f2008-12-23 16:06:15 -05004978 __be32 *p;
4979 uint32_t delegation_type;
Benny Halevy07d30432009-08-14 17:19:52 +03004980 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004981
Benny Halevyc0eae662009-08-14 17:20:14 +03004982 p = xdr_inline_decode(xdr, 4);
4983 if (unlikely(!p))
4984 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004985 delegation_type = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004986 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
4987 res->delegation_type = 0;
4988 return 0;
4989 }
Benny Halevy07d30432009-08-14 17:19:52 +03004990 status = decode_stateid(xdr, &res->delegation);
4991 if (unlikely(status))
4992 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004993 p = xdr_inline_decode(xdr, 4);
4994 if (unlikely(!p))
4995 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004996 res->do_recall = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05004997
Linus Torvalds1da177e2005-04-16 15:20:36 -07004998 switch (delegation_type) {
Andy Adamson05d564f2008-12-23 16:06:15 -05004999 case NFS4_OPEN_DELEGATE_READ:
5000 res->delegation_type = FMODE_READ;
5001 break;
5002 case NFS4_OPEN_DELEGATE_WRITE:
5003 res->delegation_type = FMODE_WRITE|FMODE_READ;
5004 if (decode_space_limit(xdr, &res->maxsize) < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005005 return -EIO;
5006 }
David Howells7539bba2006-08-22 20:06:09 -04005007 return decode_ace(xdr, NULL, res->server->nfs_client);
Benny Halevyc0eae662009-08-14 17:20:14 +03005008out_overflow:
5009 print_overflow_msg(__func__, xdr);
5010 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005011}
5012
5013static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
5014{
Andy Adamson05d564f2008-12-23 16:06:15 -05005015 __be32 *p;
Jeff Laytonaa53ed52007-06-05 14:49:03 -04005016 uint32_t savewords, bmlen, i;
Andy Adamson05d564f2008-12-23 16:06:15 -05005017 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005018
Trond Myklebustc7848f62013-12-04 17:39:23 -05005019 if (!__decode_op_hdr(xdr, OP_OPEN, &status))
5020 return status;
5021 nfs_increment_open_seqid(status, res->seqid);
5022 if (status)
5023 return status;
5024 status = decode_stateid(xdr, &res->stateid);
Benny Halevy07d30432009-08-14 17:19:52 +03005025 if (unlikely(status))
Andy Adamson05d564f2008-12-23 16:06:15 -05005026 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005027
Andy Adamson05d564f2008-12-23 16:06:15 -05005028 decode_change_info(xdr, &res->cinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005029
Benny Halevyc0eae662009-08-14 17:20:14 +03005030 p = xdr_inline_decode(xdr, 8);
5031 if (unlikely(!p))
5032 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03005033 res->rflags = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03005034 bmlen = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05005035 if (bmlen > 10)
5036 goto xdr_error;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005037
Benny Halevyc0eae662009-08-14 17:20:14 +03005038 p = xdr_inline_decode(xdr, bmlen << 2);
5039 if (unlikely(!p))
5040 goto out_overflow;
Jeff Laytonaa53ed52007-06-05 14:49:03 -04005041 savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE);
5042 for (i = 0; i < savewords; ++i)
Benny Halevy6f723f72009-08-14 17:19:37 +03005043 res->attrset[i] = be32_to_cpup(p++);
Jeff Laytonaa53ed52007-06-05 14:49:03 -04005044 for (; i < NFS4_BITMAP_SIZE; i++)
5045 res->attrset[i] = 0;
5046
Linus Torvalds1da177e2005-04-16 15:20:36 -07005047 return decode_delegation(xdr, res);
5048xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07005049 dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005050 return -EIO;
Benny Halevyc0eae662009-08-14 17:20:14 +03005051out_overflow:
5052 print_overflow_msg(__func__, xdr);
5053 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005054}
5055
5056static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
5057{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005058 int status;
5059
Andy Adamson05d564f2008-12-23 16:06:15 -05005060 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
Trond Myklebustc1d51932008-04-07 13:20:54 -04005061 if (status != -EIO)
5062 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03005063 if (!status)
5064 status = decode_stateid(xdr, &res->stateid);
5065 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005066}
5067
5068static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
5069{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005070 int status;
5071
5072 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
Trond Myklebustc1d51932008-04-07 13:20:54 -04005073 if (status != -EIO)
5074 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03005075 if (!status)
5076 status = decode_stateid(xdr, &res->stateid);
5077 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005078}
5079
5080static int decode_putfh(struct xdr_stream *xdr)
5081{
5082 return decode_op_hdr(xdr, OP_PUTFH);
5083}
5084
5085static int decode_putrootfh(struct xdr_stream *xdr)
5086{
5087 return decode_op_hdr(xdr, OP_PUTROOTFH);
5088}
5089
Anna Schumaker9137bdf2014-05-06 09:12:25 -04005090static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req,
5091 struct nfs_pgio_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005092{
Al Viro8687b632006-10-19 23:28:48 -07005093 __be32 *p;
Trond Myklebust64bd5772012-06-20 22:35:05 -04005094 uint32_t count, eof, recvd;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005095 int status;
5096
5097 status = decode_op_hdr(xdr, OP_READ);
5098 if (status)
5099 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03005100 p = xdr_inline_decode(xdr, 8);
5101 if (unlikely(!p))
5102 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03005103 eof = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03005104 count = be32_to_cpup(p);
Trond Myklebust64bd5772012-06-20 22:35:05 -04005105 recvd = xdr_read_pages(xdr, count);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005106 if (count > recvd) {
Chuck Leverfe82a182007-09-11 18:01:10 -04005107 dprintk("NFS: server cheating in read reply: "
Linus Torvalds1da177e2005-04-16 15:20:36 -07005108 "count %u > recvd %u\n", count, recvd);
5109 count = recvd;
5110 eof = 0;
5111 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005112 res->eof = eof;
5113 res->count = count;
5114 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005115out_overflow:
5116 print_overflow_msg(__func__, xdr);
5117 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005118}
5119
5120static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
5121{
Chuck Leverbcecff72007-10-26 13:32:03 -04005122 int status;
Chuck Levercd937102012-03-02 17:14:31 -05005123 __be32 verf[2];
Linus Torvalds1da177e2005-04-16 15:20:36 -07005124
5125 status = decode_op_hdr(xdr, OP_READDIR);
Benny Halevydb942bb2009-08-14 17:19:56 +03005126 if (!status)
5127 status = decode_verifier(xdr, readdir->verifier.data);
5128 if (unlikely(status))
Linus Torvalds1da177e2005-04-16 15:20:36 -07005129 return status;
Chuck Levercd937102012-03-02 17:14:31 -05005130 memcpy(verf, readdir->verifier.data, sizeof(verf));
Fred Isaman44109242008-04-02 15:21:15 +03005131 dprintk("%s: verifier = %08x:%08x\n",
Chuck Levercd937102012-03-02 17:14:31 -05005132 __func__, verf[0], verf[1]);
Trond Myklebust64bd5772012-06-20 22:35:05 -04005133 return xdr_read_pages(xdr, xdr->buf->page_len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005134}
5135
5136static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
5137{
5138 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
Chuck Leverbcecff72007-10-26 13:32:03 -04005139 u32 len, recvd;
Al Viro8687b632006-10-19 23:28:48 -07005140 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005141 int status;
5142
5143 status = decode_op_hdr(xdr, OP_READLINK);
5144 if (status)
5145 return status;
5146
5147 /* Convert length of symlink */
Benny Halevyc0eae662009-08-14 17:20:14 +03005148 p = xdr_inline_decode(xdr, 4);
5149 if (unlikely(!p))
5150 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03005151 len = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005152 if (len >= rcvbuf->page_len || len <= 0) {
Chuck Leverfe82a182007-09-11 18:01:10 -04005153 dprintk("nfs: server returned giant symlink!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07005154 return -ENAMETOOLONG;
5155 }
Trond Myklebust64bd5772012-06-20 22:35:05 -04005156 recvd = xdr_read_pages(xdr, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005157 if (recvd < len) {
Chuck Leverfe82a182007-09-11 18:01:10 -04005158 dprintk("NFS: server cheating in readlink reply: "
Linus Torvalds1da177e2005-04-16 15:20:36 -07005159 "count %u > recvd %u\n", len, recvd);
5160 return -EIO;
5161 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005162 /*
5163 * The XDR encode routine has set things up so that
5164 * the link text will be copied directly into the
5165 * buffer. We just have to do overflow-checking,
5166 * and and null-terminate the text (the VFS expects
5167 * null-termination).
5168 */
Chuck Leverb4687da2010-09-21 16:55:48 -04005169 xdr_terminate_string(rcvbuf, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005170 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005171out_overflow:
5172 print_overflow_msg(__func__, xdr);
5173 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005174}
5175
5176static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
5177{
5178 int status;
5179
5180 status = decode_op_hdr(xdr, OP_REMOVE);
5181 if (status)
5182 goto out;
5183 status = decode_change_info(xdr, cinfo);
5184out:
5185 return status;
5186}
5187
5188static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
5189 struct nfs4_change_info *new_cinfo)
5190{
5191 int status;
5192
5193 status = decode_op_hdr(xdr, OP_RENAME);
5194 if (status)
5195 goto out;
5196 if ((status = decode_change_info(xdr, old_cinfo)))
5197 goto out;
5198 status = decode_change_info(xdr, new_cinfo);
5199out:
5200 return status;
5201}
5202
5203static int decode_renew(struct xdr_stream *xdr)
5204{
5205 return decode_op_hdr(xdr, OP_RENEW);
5206}
5207
Trond Myklebust56ae19f2005-10-27 22:12:40 -04005208static int
5209decode_restorefh(struct xdr_stream *xdr)
5210{
5211 return decode_op_hdr(xdr, OP_RESTOREFH);
5212}
5213
J. Bruce Fields029d1052005-06-22 17:16:22 +00005214static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
Andy Adamsonbf118a32011-12-07 11:55:27 -05005215 struct nfs_getaclres *res)
J. Bruce Fields029d1052005-06-22 17:16:22 +00005216{
Trond Myklebust256e48b2012-06-21 11:18:13 -04005217 unsigned int savep;
J. Bruce Fields029d1052005-06-22 17:16:22 +00005218 uint32_t attrlen,
Fred Isamandae100c2011-07-30 20:52:37 -04005219 bitmap[3] = {0};
J. Bruce Fields029d1052005-06-22 17:16:22 +00005220 int status;
Trond Myklebustcff298c2012-08-14 17:14:17 -04005221 unsigned int pg_offset;
J. Bruce Fields029d1052005-06-22 17:16:22 +00005222
Andy Adamsonbf118a32011-12-07 11:55:27 -05005223 res->acl_len = 0;
J. Bruce Fields029d1052005-06-22 17:16:22 +00005224 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
5225 goto out;
Sachin Prabhu5a006892012-04-17 14:35:39 +01005226
Trond Myklebust519d3952012-08-14 17:30:10 -04005227 xdr_enter_page(xdr, xdr->buf->page_len);
5228
Trond Myklebustcff298c2012-08-14 17:14:17 -04005229 /* Calculate the offset of the page data */
5230 pg_offset = xdr->buf->head[0].iov_len;
Sachin Prabhu5a006892012-04-17 14:35:39 +01005231
J. Bruce Fields029d1052005-06-22 17:16:22 +00005232 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
5233 goto out;
5234 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
5235 goto out;
5236
5237 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
5238 return -EIO;
5239 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
J. Bruce Fields029d1052005-06-22 17:16:22 +00005240
Andy Adamsonbf118a32011-12-07 11:55:27 -05005241 /* The bitmap (xdr len + bitmaps) and the attr xdr len words
5242 * are stored with the acl data to handle the problem of
5243 * variable length bitmaps.*/
Trond Myklebustcff298c2012-08-14 17:14:17 -04005244 res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset;
Trond Myklebust519d3952012-08-14 17:30:10 -04005245 res->acl_len = attrlen;
Trond Myklebust1f1ea6c2012-08-26 11:44:43 -07005246
5247 /* Check for receive buffer overflow */
5248 if (res->acl_len > (xdr->nwords << 2) ||
5249 res->acl_len + res->acl_data_offset > xdr->buf->page_len) {
5250 res->acl_flags |= NFS4_ACL_TRUNC;
Trond Myklebust519d3952012-08-14 17:30:10 -04005251 dprintk("NFS: acl reply: attrlen %u > page_len %u\n",
Trond Myklebustcff298c2012-08-14 17:14:17 -04005252 attrlen, xdr->nwords << 2);
J. Bruce Fields029d1052005-06-22 17:16:22 +00005253 }
J. Bruce Fields8c233cf2005-10-13 16:54:27 -04005254 } else
5255 status = -EOPNOTSUPP;
J. Bruce Fields029d1052005-06-22 17:16:22 +00005256
5257out:
5258 return status;
5259}
5260
Linus Torvalds1da177e2005-04-16 15:20:36 -07005261static int
5262decode_savefh(struct xdr_stream *xdr)
5263{
5264 return decode_op_hdr(xdr, OP_SAVEFH);
5265}
5266
Benny Halevy9e9ecc02009-04-01 09:22:00 -04005267static int decode_setattr(struct xdr_stream *xdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005268{
Al Viro8687b632006-10-19 23:28:48 -07005269 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005270 uint32_t bmlen;
5271 int status;
5272
Linus Torvalds1da177e2005-04-16 15:20:36 -07005273 status = decode_op_hdr(xdr, OP_SETATTR);
5274 if (status)
5275 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03005276 p = xdr_inline_decode(xdr, 4);
5277 if (unlikely(!p))
5278 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03005279 bmlen = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03005280 p = xdr_inline_decode(xdr, bmlen << 2);
5281 if (likely(p))
5282 return 0;
5283out_overflow:
5284 print_overflow_msg(__func__, xdr);
5285 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005286}
5287
Trond Myklebustbb8b27e2010-04-16 16:43:06 -04005288static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005289{
Al Viro8687b632006-10-19 23:28:48 -07005290 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005291 uint32_t opnum;
5292 int32_t nfserr;
5293
Benny Halevyc0eae662009-08-14 17:20:14 +03005294 p = xdr_inline_decode(xdr, 8);
5295 if (unlikely(!p))
5296 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03005297 opnum = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005298 if (opnum != OP_SETCLIENTID) {
Chuck Leverfe82a182007-09-11 18:01:10 -04005299 dprintk("nfs: decode_setclientid: Server returned operation"
Andy Adamson6c0195a2008-12-23 16:06:15 -05005300 " %d\n", opnum);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005301 return -EIO;
5302 }
Benny Halevycccddf42009-08-14 17:20:19 +03005303 nfserr = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005304 if (nfserr == NFS_OK) {
Benny Halevyc0eae662009-08-14 17:20:14 +03005305 p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE);
5306 if (unlikely(!p))
5307 goto out_overflow;
Trond Myklebustbb8b27e2010-04-16 16:43:06 -04005308 p = xdr_decode_hyper(p, &res->clientid);
5309 memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005310 } else if (nfserr == NFSERR_CLID_INUSE) {
5311 uint32_t len;
5312
5313 /* skip netid string */
Benny Halevyc0eae662009-08-14 17:20:14 +03005314 p = xdr_inline_decode(xdr, 4);
5315 if (unlikely(!p))
5316 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03005317 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03005318 p = xdr_inline_decode(xdr, len);
5319 if (unlikely(!p))
5320 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005321
5322 /* skip uaddr string */
Benny Halevyc0eae662009-08-14 17:20:14 +03005323 p = xdr_inline_decode(xdr, 4);
5324 if (unlikely(!p))
5325 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03005326 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03005327 p = xdr_inline_decode(xdr, len);
5328 if (unlikely(!p))
5329 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005330 return -NFSERR_CLID_INUSE;
5331 } else
Benny Halevy856dff32008-03-31 17:39:06 +03005332 return nfs4_stat_to_errno(nfserr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005333
5334 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005335out_overflow:
5336 print_overflow_msg(__func__, xdr);
5337 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005338}
5339
5340static int decode_setclientid_confirm(struct xdr_stream *xdr)
5341{
5342 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
5343}
5344
Anna Schumaker9137bdf2014-05-06 09:12:25 -04005345static int decode_write(struct xdr_stream *xdr, struct nfs_pgio_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005346{
Al Viro8687b632006-10-19 23:28:48 -07005347 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005348 int status;
5349
5350 status = decode_op_hdr(xdr, OP_WRITE);
5351 if (status)
5352 return status;
5353
Trond Myklebust2f2c63b2012-06-08 11:56:09 -04005354 p = xdr_inline_decode(xdr, 8);
Benny Halevyc0eae662009-08-14 17:20:14 +03005355 if (unlikely(!p))
5356 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03005357 res->count = be32_to_cpup(p++);
5358 res->verf->committed = be32_to_cpup(p++);
Trond Myklebust2f2c63b2012-06-08 11:56:09 -04005359 return decode_write_verifier(xdr, &res->verf->verifier);
Benny Halevyc0eae662009-08-14 17:20:14 +03005360out_overflow:
5361 print_overflow_msg(__func__, xdr);
5362 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005363}
5364
5365static int decode_delegreturn(struct xdr_stream *xdr)
5366{
5367 return decode_op_hdr(xdr, OP_DELEGRETURN);
5368}
5369
Chuck Leverfb15b262013-03-16 15:54:34 -04005370static int decode_secinfo_gss(struct xdr_stream *xdr,
5371 struct nfs4_secinfo4 *flavor)
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005372{
Chuck Leverfb15b262013-03-16 15:54:34 -04005373 u32 oid_len;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005374 __be32 *p;
5375
5376 p = xdr_inline_decode(xdr, 4);
5377 if (unlikely(!p))
5378 goto out_overflow;
Chuck Leverfb15b262013-03-16 15:54:34 -04005379 oid_len = be32_to_cpup(p);
5380 if (oid_len > GSS_OID_MAX_LEN)
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005381 goto out_err;
5382
Chuck Leverfb15b262013-03-16 15:54:34 -04005383 p = xdr_inline_decode(xdr, oid_len);
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005384 if (unlikely(!p))
5385 goto out_overflow;
Chuck Leverfb15b262013-03-16 15:54:34 -04005386 memcpy(flavor->flavor_info.oid.data, p, oid_len);
5387 flavor->flavor_info.oid.len = oid_len;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005388
5389 p = xdr_inline_decode(xdr, 8);
5390 if (unlikely(!p))
5391 goto out_overflow;
Chuck Leverfb15b262013-03-16 15:54:34 -04005392 flavor->flavor_info.qop = be32_to_cpup(p++);
5393 flavor->flavor_info.service = be32_to_cpup(p);
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005394
5395 return 0;
5396
5397out_overflow:
5398 print_overflow_msg(__func__, xdr);
5399 return -EIO;
5400out_err:
5401 return -EINVAL;
5402}
5403
Bryan Schumaker31e4dda2012-04-27 13:27:38 -04005404static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005405{
Chuck Leverfb15b262013-03-16 15:54:34 -04005406 struct nfs4_secinfo4 *sec_flavor;
5407 unsigned int i, num_flavors;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005408 int status;
5409 __be32 *p;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005410
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005411 p = xdr_inline_decode(xdr, 4);
5412 if (unlikely(!p))
5413 goto out_overflow;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005414
Bryan Schumakerc3dfc282011-04-13 14:31:31 -04005415 res->flavors->num_flavors = 0;
5416 num_flavors = be32_to_cpup(p);
5417
5418 for (i = 0; i < num_flavors; i++) {
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005419 sec_flavor = &res->flavors->flavors[i];
Bryan Schumakerc3dfc282011-04-13 14:31:31 -04005420 if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE)
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005421 break;
5422
5423 p = xdr_inline_decode(xdr, 4);
5424 if (unlikely(!p))
5425 goto out_overflow;
5426 sec_flavor->flavor = be32_to_cpup(p);
5427
5428 if (sec_flavor->flavor == RPC_AUTH_GSS) {
Bryan Schumaker613e9012011-04-27 15:28:44 -04005429 status = decode_secinfo_gss(xdr, sec_flavor);
5430 if (status)
5431 goto out;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005432 }
Bryan Schumakerc3dfc282011-04-13 14:31:31 -04005433 res->flavors->num_flavors++;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005434 }
5435
Bryan Schumaker31e4dda2012-04-27 13:27:38 -04005436 status = 0;
Bryan Schumaker613e9012011-04-27 15:28:44 -04005437out:
5438 return status;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005439out_overflow:
5440 print_overflow_msg(__func__, xdr);
5441 return -EIO;
5442}
5443
Bryan Schumaker31e4dda2012-04-27 13:27:38 -04005444static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
5445{
5446 int status = decode_op_hdr(xdr, OP_SECINFO);
5447 if (status)
5448 return status;
5449 return decode_secinfo_common(xdr, res);
5450}
5451
Benny Halevy99fe60d2009-04-01 09:22:29 -04005452#if defined(CONFIG_NFS_V4_1)
Bryan Schumaker31e4dda2012-04-27 13:27:38 -04005453static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
5454{
5455 int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME);
5456 if (status)
5457 return status;
5458 return decode_secinfo_common(xdr, res);
5459}
5460
Weston Andros Adamson2031cd12013-08-13 16:37:32 -04005461static int decode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map)
5462{
5463 __be32 *p;
5464 uint32_t bitmap_words;
5465 unsigned int i;
5466
5467 p = xdr_inline_decode(xdr, 4);
5468 bitmap_words = be32_to_cpup(p++);
5469 if (bitmap_words > NFS4_OP_MAP_NUM_WORDS)
5470 return -EIO;
5471 p = xdr_inline_decode(xdr, 4 * bitmap_words);
5472 for (i = 0; i < bitmap_words; i++)
5473 op_map->u.words[i] = be32_to_cpup(p++);
5474
5475 return 0;
5476}
5477
Benny Halevy99fe60d2009-04-01 09:22:29 -04005478static int decode_exchange_id(struct xdr_stream *xdr,
5479 struct nfs41_exchange_id_res *res)
5480{
5481 __be32 *p;
5482 uint32_t dummy;
Benny Halevy2460ba52009-08-14 17:20:10 +03005483 char *dummy_str;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005484 int status;
Weston Andros Adamson7d2ed9a2012-02-17 15:20:26 -05005485 uint32_t impl_id_count;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005486
5487 status = decode_op_hdr(xdr, OP_EXCHANGE_ID);
5488 if (status)
5489 return status;
5490
Benny Halevyc0eae662009-08-14 17:20:14 +03005491 p = xdr_inline_decode(xdr, 8);
5492 if (unlikely(!p))
5493 goto out_overflow;
Trond Myklebust32b01312012-05-26 13:41:04 -04005494 xdr_decode_hyper(p, &res->clientid);
Benny Halevyc0eae662009-08-14 17:20:14 +03005495 p = xdr_inline_decode(xdr, 12);
5496 if (unlikely(!p))
5497 goto out_overflow;
Trond Myklebust32b01312012-05-26 13:41:04 -04005498 res->seqid = be32_to_cpup(p++);
5499 res->flags = be32_to_cpup(p++);
Benny Halevy99fe60d2009-04-01 09:22:29 -04005500
Weston Andros Adamson2031cd12013-08-13 16:37:32 -04005501 res->state_protect.how = be32_to_cpup(p);
5502 switch (res->state_protect.how) {
5503 case SP4_NONE:
5504 break;
5505 case SP4_MACH_CRED:
5506 status = decode_op_map(xdr, &res->state_protect.enforce);
5507 if (status)
5508 return status;
5509 status = decode_op_map(xdr, &res->state_protect.allow);
5510 if (status)
5511 return status;
5512 break;
5513 default:
5514 WARN_ON_ONCE(1);
Benny Halevy99fe60d2009-04-01 09:22:29 -04005515 return -EIO;
Weston Andros Adamson2031cd12013-08-13 16:37:32 -04005516 }
Benny Halevy99fe60d2009-04-01 09:22:29 -04005517
Chuck Leveracdeb692012-05-21 22:46:16 -04005518 /* server_owner4.so_minor_id */
Benny Halevyc0eae662009-08-14 17:20:14 +03005519 p = xdr_inline_decode(xdr, 8);
5520 if (unlikely(!p))
5521 goto out_overflow;
Chuck Leveracdeb692012-05-21 22:46:16 -04005522 p = xdr_decode_hyper(p, &res->server_owner->minor_id);
Benny Halevy99fe60d2009-04-01 09:22:29 -04005523
Chuck Leveracdeb692012-05-21 22:46:16 -04005524 /* server_owner4.so_major_id */
Benny Halevy2460ba52009-08-14 17:20:10 +03005525 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5526 if (unlikely(status))
5527 return status;
Weston Andros Adamson78fe0f42011-05-31 19:05:47 -04005528 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5529 return -EIO;
Chuck Leveracdeb692012-05-21 22:46:16 -04005530 memcpy(res->server_owner->major_id, dummy_str, dummy);
5531 res->server_owner->major_id_sz = dummy;
Weston Andros Adamson78fe0f42011-05-31 19:05:47 -04005532
Chuck Leveracdeb692012-05-21 22:46:16 -04005533 /* server_scope4 */
5534 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5535 if (unlikely(status))
5536 return status;
5537 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5538 return -EIO;
Weston Andros Adamson78fe0f42011-05-31 19:05:47 -04005539 memcpy(res->server_scope->server_scope, dummy_str, dummy);
5540 res->server_scope->server_scope_sz = dummy;
5541
Weston Andros Adamson7d2ed9a2012-02-17 15:20:26 -05005542 /* Implementation Id */
5543 p = xdr_inline_decode(xdr, 4);
5544 if (unlikely(!p))
5545 goto out_overflow;
5546 impl_id_count = be32_to_cpup(p++);
Benny Halevy99fe60d2009-04-01 09:22:29 -04005547
Weston Andros Adamson7d2ed9a2012-02-17 15:20:26 -05005548 if (impl_id_count) {
5549 /* nii_domain */
5550 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5551 if (unlikely(status))
5552 return status;
5553 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5554 return -EIO;
5555 memcpy(res->impl_id->domain, dummy_str, dummy);
5556
5557 /* nii_name */
5558 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5559 if (unlikely(status))
5560 return status;
5561 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5562 return -EIO;
5563 memcpy(res->impl_id->name, dummy_str, dummy);
5564
5565 /* nii_date */
5566 p = xdr_inline_decode(xdr, 12);
5567 if (unlikely(!p))
5568 goto out_overflow;
5569 p = xdr_decode_hyper(p, &res->impl_id->date.seconds);
5570 res->impl_id->date.nseconds = be32_to_cpup(p);
5571
5572 /* if there's more than one entry, ignore the rest */
5573 }
Benny Halevy99fe60d2009-04-01 09:22:29 -04005574 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005575out_overflow:
5576 print_overflow_msg(__func__, xdr);
5577 return -EIO;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005578}
Andy Adamsonfc931582009-04-01 09:22:31 -04005579
5580static int decode_chan_attrs(struct xdr_stream *xdr,
5581 struct nfs4_channel_attrs *attrs)
5582{
5583 __be32 *p;
Benny Halevyc9c30dd2011-06-11 17:08:39 -04005584 u32 nr_attrs, val;
Andy Adamsonfc931582009-04-01 09:22:31 -04005585
Benny Halevyc0eae662009-08-14 17:20:14 +03005586 p = xdr_inline_decode(xdr, 28);
5587 if (unlikely(!p))
5588 goto out_overflow;
Benny Halevyc9c30dd2011-06-11 17:08:39 -04005589 val = be32_to_cpup(p++); /* headerpadsz */
5590 if (val)
5591 return -EINVAL; /* no support for header padding yet */
Benny Halevy6f723f72009-08-14 17:19:37 +03005592 attrs->max_rqst_sz = be32_to_cpup(p++);
5593 attrs->max_resp_sz = be32_to_cpup(p++);
5594 attrs->max_resp_sz_cached = be32_to_cpup(p++);
5595 attrs->max_ops = be32_to_cpup(p++);
5596 attrs->max_reqs = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03005597 nr_attrs = be32_to_cpup(p);
Andy Adamsonfc931582009-04-01 09:22:31 -04005598 if (unlikely(nr_attrs > 1)) {
Weston Andros Adamsona0308892012-01-26 13:32:23 -05005599 printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs "
5600 "count %u\n", __func__, nr_attrs);
Andy Adamsonfc931582009-04-01 09:22:31 -04005601 return -EINVAL;
5602 }
Benny Halevyc0eae662009-08-14 17:20:14 +03005603 if (nr_attrs == 1) {
5604 p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */
5605 if (unlikely(!p))
5606 goto out_overflow;
5607 }
Andy Adamsonfc931582009-04-01 09:22:31 -04005608 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005609out_overflow:
5610 print_overflow_msg(__func__, xdr);
5611 return -EIO;
Andy Adamsonfc931582009-04-01 09:22:31 -04005612}
5613
Benny Halevye78291e2009-08-14 17:20:00 +03005614static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid)
5615{
5616 return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN);
Andy Adamsonfc931582009-04-01 09:22:31 -04005617}
5618
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -04005619static int decode_bind_conn_to_session(struct xdr_stream *xdr,
5620 struct nfs41_bind_conn_to_session_res *res)
5621{
5622 __be32 *p;
5623 int status;
5624
5625 status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION);
5626 if (!status)
5627 status = decode_sessionid(xdr, &res->session->sess_id);
5628 if (unlikely(status))
5629 return status;
5630
5631 /* dir flags, rdma mode bool */
5632 p = xdr_inline_decode(xdr, 8);
5633 if (unlikely(!p))
5634 goto out_overflow;
5635
5636 res->dir = be32_to_cpup(p++);
5637 if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH)
5638 return -EIO;
5639 if (be32_to_cpup(p) == 0)
5640 res->use_conn_in_rdma_mode = false;
5641 else
5642 res->use_conn_in_rdma_mode = true;
5643
5644 return 0;
5645out_overflow:
5646 print_overflow_msg(__func__, xdr);
5647 return -EIO;
5648}
5649
Andy Adamsonfc931582009-04-01 09:22:31 -04005650static int decode_create_session(struct xdr_stream *xdr,
5651 struct nfs41_create_session_res *res)
5652{
5653 __be32 *p;
5654 int status;
5655 struct nfs_client *clp = res->client;
5656 struct nfs4_session *session = clp->cl_session;
5657
5658 status = decode_op_hdr(xdr, OP_CREATE_SESSION);
Benny Halevye78291e2009-08-14 17:20:00 +03005659 if (!status)
5660 status = decode_sessionid(xdr, &session->sess_id);
5661 if (unlikely(status))
Andy Adamsonfc931582009-04-01 09:22:31 -04005662 return status;
5663
Andy Adamsonfc931582009-04-01 09:22:31 -04005664 /* seqid, flags */
Benny Halevyc0eae662009-08-14 17:20:14 +03005665 p = xdr_inline_decode(xdr, 8);
5666 if (unlikely(!p))
5667 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03005668 clp->cl_seqid = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03005669 session->flags = be32_to_cpup(p);
Andy Adamsonfc931582009-04-01 09:22:31 -04005670
5671 /* Channel attributes */
5672 status = decode_chan_attrs(xdr, &session->fc_attrs);
5673 if (!status)
5674 status = decode_chan_attrs(xdr, &session->bc_attrs);
5675 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03005676out_overflow:
5677 print_overflow_msg(__func__, xdr);
5678 return -EIO;
Andy Adamsonfc931582009-04-01 09:22:31 -04005679}
Andy Adamson0f3e66c2009-04-01 09:22:34 -04005680
5681static int decode_destroy_session(struct xdr_stream *xdr, void *dummy)
5682{
5683 return decode_op_hdr(xdr, OP_DESTROY_SESSION);
5684}
Ricardo Labiaga180197532009-12-05 16:08:40 -05005685
Trond Myklebust66245532012-05-25 17:18:09 -04005686static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy)
5687{
5688 return decode_op_hdr(xdr, OP_DESTROY_CLIENTID);
5689}
5690
Ricardo Labiaga180197532009-12-05 16:08:40 -05005691static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy)
5692{
5693 return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE);
5694}
Benny Halevy99fe60d2009-04-01 09:22:29 -04005695#endif /* CONFIG_NFS_V4_1 */
5696
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005697static int decode_sequence(struct xdr_stream *xdr,
5698 struct nfs4_sequence_res *res,
5699 struct rpc_rqst *rqstp)
5700{
5701#if defined(CONFIG_NFS_V4_1)
Trond Myklebuste3725ec2012-11-16 12:25:01 -05005702 struct nfs4_session *session;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005703 struct nfs4_sessionid id;
5704 u32 dummy;
5705 int status;
5706 __be32 *p;
5707
Trond Myklebuste3725ec2012-11-16 12:25:01 -05005708 if (res->sr_slot == NULL)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005709 return 0;
Chuck Lever3bd23842013-08-09 12:49:19 -04005710 if (!res->sr_slot->table->session)
5711 return 0;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005712
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005713 status = decode_op_hdr(xdr, OP_SEQUENCE);
Benny Halevye78291e2009-08-14 17:20:00 +03005714 if (!status)
5715 status = decode_sessionid(xdr, &id);
5716 if (unlikely(status))
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005717 goto out_err;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005718
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005719 /*
5720 * If the server returns different values for sessionID, slotID or
5721 * sequence number, the server is looney tunes.
5722 */
Trond Myklebustfdcb4572010-02-08 09:32:40 -05005723 status = -EREMOTEIO;
Trond Myklebuste3725ec2012-11-16 12:25:01 -05005724 session = res->sr_slot->table->session;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005725
Trond Myklebuste3725ec2012-11-16 12:25:01 -05005726 if (memcmp(id.data, session->sess_id.data,
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005727 NFS4_MAX_SESSIONID_LEN)) {
5728 dprintk("%s Invalid session id\n", __func__);
5729 goto out_err;
5730 }
Benny Halevye78291e2009-08-14 17:20:00 +03005731
Benny Halevyc0eae662009-08-14 17:20:14 +03005732 p = xdr_inline_decode(xdr, 20);
5733 if (unlikely(!p))
5734 goto out_overflow;
Benny Halevye78291e2009-08-14 17:20:00 +03005735
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005736 /* seqid */
Benny Halevy6f723f72009-08-14 17:19:37 +03005737 dummy = be32_to_cpup(p++);
Benny Halevydfb4f3092010-09-24 09:17:01 -04005738 if (dummy != res->sr_slot->seq_nr) {
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005739 dprintk("%s Invalid sequence number\n", __func__);
5740 goto out_err;
5741 }
5742 /* slot id */
Benny Halevy6f723f72009-08-14 17:19:37 +03005743 dummy = be32_to_cpup(p++);
Trond Myklebustdf2fabf2012-11-16 12:45:06 -05005744 if (dummy != res->sr_slot->slot_nr) {
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005745 dprintk("%s Invalid slot id\n", __func__);
5746 goto out_err;
5747 }
Trond Myklebustda0507b2012-11-20 18:10:30 -05005748 /* highest slot id */
5749 res->sr_highest_slotid = be32_to_cpup(p++);
Trond Myklebust464ee9f2012-11-20 12:49:27 -05005750 /* target highest slot id */
5751 res->sr_target_highest_slotid = be32_to_cpup(p++);
Alexandros Batsakis0629e372009-12-05 13:46:14 -05005752 /* result flags */
5753 res->sr_status_flags = be32_to_cpup(p);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005754 status = 0;
5755out_err:
5756 res->sr_status = status;
5757 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03005758out_overflow:
5759 print_overflow_msg(__func__, xdr);
5760 status = -EIO;
5761 goto out_err;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005762#else /* CONFIG_NFS_V4_1 */
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005763 return 0;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005764#endif /* CONFIG_NFS_V4_1 */
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005765}
5766
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005767#if defined(CONFIG_NFS_V4_1)
Andy Adamson7f11d8d2011-07-30 20:52:35 -04005768/*
5769 * TODO: Need to handle case when EOF != true;
5770 */
5771static int decode_getdevicelist(struct xdr_stream *xdr,
5772 struct pnfs_devicelist *res)
5773{
5774 __be32 *p;
5775 int status, i;
Trond Myklebust98d94522012-06-08 12:01:14 -04005776 nfs4_verifier verftemp;
Andy Adamson7f11d8d2011-07-30 20:52:35 -04005777
5778 status = decode_op_hdr(xdr, OP_GETDEVICELIST);
5779 if (status)
5780 return status;
5781
5782 p = xdr_inline_decode(xdr, 8 + 8 + 4);
5783 if (unlikely(!p))
5784 goto out_overflow;
5785
5786 /* TODO: Skip cookie for now */
5787 p += 2;
5788
5789 /* Read verifier */
Trond Myklebust98d94522012-06-08 12:01:14 -04005790 p = xdr_decode_opaque_fixed(p, verftemp.data, NFS4_VERIFIER_SIZE);
Andy Adamson7f11d8d2011-07-30 20:52:35 -04005791
5792 res->num_devs = be32_to_cpup(p);
5793
5794 dprintk("%s: num_dev %d\n", __func__, res->num_devs);
5795
5796 if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) {
Weston Andros Adamsona0308892012-01-26 13:32:23 -05005797 printk(KERN_ERR "NFS: %s too many result dev_num %u\n",
Andy Adamson7f11d8d2011-07-30 20:52:35 -04005798 __func__, res->num_devs);
5799 return -EIO;
5800 }
5801
5802 p = xdr_inline_decode(xdr,
5803 res->num_devs * NFS4_DEVICEID4_SIZE + 4);
5804 if (unlikely(!p))
5805 goto out_overflow;
5806 for (i = 0; i < res->num_devs; i++)
5807 p = xdr_decode_opaque_fixed(p, res->dev_id[i].data,
5808 NFS4_DEVICEID4_SIZE);
5809 res->eof = be32_to_cpup(p);
5810 return 0;
5811out_overflow:
5812 print_overflow_msg(__func__, xdr);
5813 return -EIO;
5814}
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005815
5816static int decode_getdeviceinfo(struct xdr_stream *xdr,
5817 struct pnfs_device *pdev)
5818{
5819 __be32 *p;
5820 uint32_t len, type;
5821 int status;
5822
5823 status = decode_op_hdr(xdr, OP_GETDEVICEINFO);
5824 if (status) {
5825 if (status == -ETOOSMALL) {
5826 p = xdr_inline_decode(xdr, 4);
5827 if (unlikely(!p))
5828 goto out_overflow;
5829 pdev->mincount = be32_to_cpup(p);
5830 dprintk("%s: Min count too small. mincnt = %u\n",
5831 __func__, pdev->mincount);
5832 }
5833 return status;
5834 }
5835
5836 p = xdr_inline_decode(xdr, 8);
5837 if (unlikely(!p))
5838 goto out_overflow;
5839 type = be32_to_cpup(p++);
5840 if (type != pdev->layout_type) {
5841 dprintk("%s: layout mismatch req: %u pdev: %u\n",
5842 __func__, pdev->layout_type, type);
5843 return -EINVAL;
5844 }
5845 /*
5846 * Get the length of the opaque device_addr4. xdr_read_pages places
5847 * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages)
5848 * and places the remaining xdr data in xdr_buf->tail
5849 */
5850 pdev->mincount = be32_to_cpup(p);
Trond Myklebust13fe4ba2012-08-01 14:21:12 -04005851 if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount)
5852 goto out_overflow;
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005853
5854 /* Parse notification bitmap, verifying that it is zero. */
5855 p = xdr_inline_decode(xdr, 4);
5856 if (unlikely(!p))
5857 goto out_overflow;
5858 len = be32_to_cpup(p);
5859 if (len) {
Chuck Leveread00592010-12-14 14:58:21 +00005860 uint32_t i;
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005861
5862 p = xdr_inline_decode(xdr, 4 * len);
5863 if (unlikely(!p))
5864 goto out_overflow;
5865 for (i = 0; i < len; i++, p++) {
5866 if (be32_to_cpup(p)) {
5867 dprintk("%s: notifications not supported\n",
5868 __func__);
5869 return -EIO;
5870 }
5871 }
5872 }
5873 return 0;
5874out_overflow:
5875 print_overflow_msg(__func__, xdr);
5876 return -EIO;
5877}
5878
5879static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
5880 struct nfs4_layoutget_res *res)
5881{
5882 __be32 *p;
5883 int status;
5884 u32 layout_count;
Trond Myklebust64bd5772012-06-20 22:35:05 -04005885 u32 recvd;
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005886
5887 status = decode_op_hdr(xdr, OP_LAYOUTGET);
5888 if (status)
5889 return status;
Trond Myklebustea9d23f2012-03-04 18:13:56 -05005890 p = xdr_inline_decode(xdr, 4);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005891 if (unlikely(!p))
5892 goto out_overflow;
Trond Myklebustea9d23f2012-03-04 18:13:56 -05005893 res->return_on_close = be32_to_cpup(p);
5894 decode_stateid(xdr, &res->stateid);
5895 p = xdr_inline_decode(xdr, 4);
5896 if (unlikely(!p))
5897 goto out_overflow;
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005898 layout_count = be32_to_cpup(p);
5899 if (!layout_count) {
5900 dprintk("%s: server responded with empty layout array\n",
5901 __func__);
5902 return -EINVAL;
5903 }
5904
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005905 p = xdr_inline_decode(xdr, 28);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005906 if (unlikely(!p))
5907 goto out_overflow;
5908 p = xdr_decode_hyper(p, &res->range.offset);
5909 p = xdr_decode_hyper(p, &res->range.length);
5910 res->range.iomode = be32_to_cpup(p++);
5911 res->type = be32_to_cpup(p++);
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005912 res->layoutp->len = be32_to_cpup(p);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005913
5914 dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n",
5915 __func__,
5916 (unsigned long)res->range.offset,
5917 (unsigned long)res->range.length,
5918 res->range.iomode,
5919 res->type,
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005920 res->layoutp->len);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005921
Trond Myklebust64bd5772012-06-20 22:35:05 -04005922 recvd = xdr_read_pages(xdr, res->layoutp->len);
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005923 if (res->layoutp->len > recvd) {
5924 dprintk("NFS: server cheating in layoutget reply: "
5925 "layout len %u > recvd %u\n",
5926 res->layoutp->len, recvd);
5927 return -EINVAL;
5928 }
5929
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005930 if (layout_count > 1) {
5931 /* We only handle a length one array at the moment. Any
5932 * further entries are just ignored. Note that this means
5933 * the client may see a response that is less than the
5934 * minimum it requested.
5935 */
5936 dprintk("%s: server responded with %d layouts, dropping tail\n",
5937 __func__, layout_count);
5938 }
5939
5940 return 0;
5941out_overflow:
5942 print_overflow_msg(__func__, xdr);
5943 return -EIO;
5944}
Andy Adamson863a3c62011-03-23 13:27:54 +00005945
Benny Halevycbe82602011-05-22 19:52:37 +03005946static int decode_layoutreturn(struct xdr_stream *xdr,
5947 struct nfs4_layoutreturn_res *res)
5948{
5949 __be32 *p;
5950 int status;
5951
5952 status = decode_op_hdr(xdr, OP_LAYOUTRETURN);
5953 if (status)
5954 return status;
5955 p = xdr_inline_decode(xdr, 4);
5956 if (unlikely(!p))
5957 goto out_overflow;
5958 res->lrs_present = be32_to_cpup(p);
5959 if (res->lrs_present)
5960 status = decode_stateid(xdr, &res->stateid);
5961 return status;
5962out_overflow:
5963 print_overflow_msg(__func__, xdr);
5964 return -EIO;
5965}
5966
Andy Adamson863a3c62011-03-23 13:27:54 +00005967static int decode_layoutcommit(struct xdr_stream *xdr,
5968 struct rpc_rqst *req,
5969 struct nfs4_layoutcommit_res *res)
5970{
5971 __be32 *p;
5972 __u32 sizechanged;
5973 int status;
5974
5975 status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT);
Andy Adamsondb29c082011-07-30 20:52:38 -04005976 res->status = status;
Andy Adamson863a3c62011-03-23 13:27:54 +00005977 if (status)
5978 return status;
5979
5980 p = xdr_inline_decode(xdr, 4);
5981 if (unlikely(!p))
5982 goto out_overflow;
5983 sizechanged = be32_to_cpup(p);
5984
5985 if (sizechanged) {
5986 /* throw away new size */
5987 p = xdr_inline_decode(xdr, 8);
5988 if (unlikely(!p))
5989 goto out_overflow;
5990 }
5991 return 0;
5992out_overflow:
5993 print_overflow_msg(__func__, xdr);
5994 return -EIO;
5995}
Bryan Schumaker7d974792011-06-02 14:59:08 -04005996
5997static int decode_test_stateid(struct xdr_stream *xdr,
5998 struct nfs41_test_stateid_res *res)
5999{
6000 __be32 *p;
6001 int status;
6002 int num_res;
6003
6004 status = decode_op_hdr(xdr, OP_TEST_STATEID);
6005 if (status)
6006 return status;
6007
6008 p = xdr_inline_decode(xdr, 4);
6009 if (unlikely(!p))
6010 goto out_overflow;
6011 num_res = be32_to_cpup(p++);
6012 if (num_res != 1)
6013 goto out;
6014
6015 p = xdr_inline_decode(xdr, 4);
6016 if (unlikely(!p))
6017 goto out_overflow;
6018 res->status = be32_to_cpup(p++);
Bryan Schumaker1cab0652012-01-31 10:39:29 -05006019
6020 return status;
Bryan Schumaker7d974792011-06-02 14:59:08 -04006021out_overflow:
6022 print_overflow_msg(__func__, xdr);
6023out:
6024 return -EIO;
6025}
Bryan Schumaker9aeda352011-06-02 14:59:09 -04006026
6027static int decode_free_stateid(struct xdr_stream *xdr,
6028 struct nfs41_free_stateid_res *res)
6029{
Andy Adamson9f79fb42013-09-10 12:56:29 -04006030 res->status = decode_op_hdr(xdr, OP_FREE_STATEID);
Bryan Schumaker9aeda352011-06-02 14:59:09 -04006031 return res->status;
Bryan Schumaker9aeda352011-06-02 14:59:09 -04006032}
Andy Adamsonb1f69b72010-10-20 00:18:03 -04006033#endif /* CONFIG_NFS_V4_1 */
6034
Linus Torvalds1da177e2005-04-16 15:20:36 -07006035/*
Benny Halevy49c25592008-12-23 16:06:16 -05006036 * END OF "GENERIC" DECODE ROUTINES.
6037 */
6038
6039/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07006040 * Decode OPEN_DOWNGRADE response
6041 */
Chuck Leverbf269552010-12-14 14:59:29 +00006042static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp,
6043 struct xdr_stream *xdr,
6044 struct nfs_closeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006045{
Andy Adamson05d564f2008-12-23 16:06:15 -05006046 struct compound_hdr hdr;
6047 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006048
Chuck Leverbf269552010-12-14 14:59:29 +00006049 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006050 if (status)
6051 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006052 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006053 if (status)
6054 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006055 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006056 if (status)
6057 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006058 status = decode_open_downgrade(xdr, res);
Trond Myklebust516a6af2005-10-27 22:12:41 -04006059 if (status != 0)
6060 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05006061 decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006062out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006063 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006064}
6065
6066/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07006067 * Decode ACCESS response
6068 */
Chuck Leverbf269552010-12-14 14:59:29 +00006069static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6070 struct nfs4_accessres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006071{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006072 struct compound_hdr hdr;
6073 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05006074
Chuck Leverbf269552010-12-14 14:59:29 +00006075 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006076 if (status)
6077 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006078 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006079 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006080 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006081 status = decode_putfh(xdr);
Trond Myklebust76b32992007-08-10 17:45:11 -04006082 if (status != 0)
6083 goto out;
Weston Andros Adamson6168f622012-09-10 14:00:46 -04006084 status = decode_access(xdr, &res->supported, &res->access);
Trond Myklebust76b32992007-08-10 17:45:11 -04006085 if (status != 0)
6086 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05006087 decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006088out:
6089 return status;
6090}
6091
6092/*
6093 * Decode LOOKUP response
6094 */
Chuck Leverbf269552010-12-14 14:59:29 +00006095static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6096 struct nfs4_lookup_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006097{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006098 struct compound_hdr hdr;
6099 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05006100
Chuck Leverbf269552010-12-14 14:59:29 +00006101 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006102 if (status)
6103 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006104 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006105 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006106 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006107 status = decode_putfh(xdr);
6108 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006109 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006110 status = decode_lookup(xdr);
6111 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006112 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006113 status = decode_getfh(xdr, res->fh);
6114 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006115 goto out;
David Quigleyaa9c2662013-05-22 12:50:44 -04006116 status = decode_getfattr_label(xdr, res->fattr, res->label, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006117out:
6118 return status;
6119}
6120
6121/*
6122 * Decode LOOKUP_ROOT response
6123 */
Chuck Leverbf269552010-12-14 14:59:29 +00006124static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp,
6125 struct xdr_stream *xdr,
6126 struct nfs4_lookup_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006127{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006128 struct compound_hdr hdr;
6129 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05006130
Chuck Leverbf269552010-12-14 14:59:29 +00006131 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006132 if (status)
6133 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006134 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006135 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006136 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006137 status = decode_putrootfh(xdr);
6138 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006139 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006140 status = decode_getfh(xdr, res->fh);
6141 if (status == 0)
David Quigleyaa9c2662013-05-22 12:50:44 -04006142 status = decode_getfattr_label(xdr, res->fattr,
6143 res->label, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006144out:
6145 return status;
6146}
6147
6148/*
6149 * Decode REMOVE response
6150 */
Chuck Leverbf269552010-12-14 14:59:29 +00006151static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6152 struct nfs_removeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006153{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006154 struct compound_hdr hdr;
6155 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05006156
Chuck Leverbf269552010-12-14 14:59:29 +00006157 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006158 if (status)
6159 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006160 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006161 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006162 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006163 status = decode_putfh(xdr);
6164 if (status)
Trond Myklebust16e42952005-10-27 22:12:44 -04006165 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006166 status = decode_remove(xdr, &res->cinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006167out:
6168 return status;
6169}
6170
6171/*
6172 * Decode RENAME response
6173 */
Chuck Leverbf269552010-12-14 14:59:29 +00006174static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6175 struct nfs_renameres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006176{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006177 struct compound_hdr hdr;
6178 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05006179
Chuck Leverbf269552010-12-14 14:59:29 +00006180 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006181 if (status)
6182 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006183 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006184 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006185 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006186 status = decode_putfh(xdr);
6187 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006188 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006189 status = decode_savefh(xdr);
6190 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006191 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006192 status = decode_putfh(xdr);
6193 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006194 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006195 status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006196out:
6197 return status;
6198}
6199
6200/*
6201 * Decode LINK response
6202 */
Chuck Leverbf269552010-12-14 14:59:29 +00006203static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6204 struct nfs4_link_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006205{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006206 struct compound_hdr hdr;
6207 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05006208
Chuck Leverbf269552010-12-14 14:59:29 +00006209 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006210 if (status)
6211 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006212 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006213 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006214 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006215 status = decode_putfh(xdr);
6216 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006217 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006218 status = decode_savefh(xdr);
6219 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006220 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006221 status = decode_putfh(xdr);
6222 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006223 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006224 status = decode_link(xdr, &res->cinfo);
6225 if (status)
Trond Myklebust91ba2ee2005-10-27 22:12:42 -04006226 goto out;
6227 /*
6228 * Note order: OP_LINK leaves the directory as the current
6229 * filehandle.
6230 */
Chuck Leverbf269552010-12-14 14:59:29 +00006231 status = decode_restorefh(xdr);
6232 if (status)
Trond Myklebust91ba2ee2005-10-27 22:12:42 -04006233 goto out;
David Quigleyaa9c2662013-05-22 12:50:44 -04006234 decode_getfattr_label(xdr, res->fattr, res->label, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006235out:
6236 return status;
6237}
6238
6239/*
6240 * Decode CREATE response
6241 */
Chuck Leverbf269552010-12-14 14:59:29 +00006242static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6243 struct nfs4_create_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006244{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006245 struct compound_hdr hdr;
6246 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05006247
Chuck Leverbf269552010-12-14 14:59:29 +00006248 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006249 if (status)
6250 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006251 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006252 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006253 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006254 status = decode_putfh(xdr);
6255 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006256 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006257 status = decode_create(xdr, &res->dir_cinfo);
6258 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006259 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006260 status = decode_getfh(xdr, res->fh);
6261 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006262 goto out;
David Quigleyaa9c2662013-05-22 12:50:44 -04006263 decode_getfattr_label(xdr, res->fattr, res->label, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006264out:
6265 return status;
6266}
6267
6268/*
6269 * Decode SYMLINK response
6270 */
Chuck Leverbf269552010-12-14 14:59:29 +00006271static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6272 struct nfs4_create_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006273{
Chuck Leverbf269552010-12-14 14:59:29 +00006274 return nfs4_xdr_dec_create(rqstp, xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006275}
6276
6277/*
6278 * Decode GETATTR response
6279 */
Chuck Leverbf269552010-12-14 14:59:29 +00006280static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6281 struct nfs4_getattr_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006282{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006283 struct compound_hdr hdr;
6284 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05006285
Chuck Leverbf269552010-12-14 14:59:29 +00006286 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006287 if (status)
6288 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006289 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006290 if (status)
6291 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006292 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006293 if (status)
6294 goto out;
David Quigleyaa9c2662013-05-22 12:50:44 -04006295 status = decode_getfattr_label(xdr, res->fattr, res->label, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006296out:
6297 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006298}
6299
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006300/*
6301 * Encode an SETACL request
6302 */
Chuck Lever9f06c712010-12-14 14:59:18 +00006303static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr,
6304 struct nfs_setaclargs *args)
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006305{
Andy Adamson05d564f2008-12-23 16:06:15 -05006306 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04006307 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Andy Adamson05d564f2008-12-23 16:06:15 -05006308 };
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006309
Chuck Lever9f06c712010-12-14 14:59:18 +00006310 encode_compound_hdr(xdr, req, &hdr);
6311 encode_sequence(xdr, &args->seq_args, &hdr);
6312 encode_putfh(xdr, args->fh, &hdr);
6313 encode_setacl(xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05006314 encode_nops(&hdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006315}
Andy Adamson05d564f2008-12-23 16:06:15 -05006316
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006317/*
6318 * Decode SETACL response
6319 */
6320static int
Chuck Leverbf269552010-12-14 14:59:29 +00006321nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
Benny Halevy73c403a2009-04-01 09:22:01 -04006322 struct nfs_setaclres *res)
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006323{
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006324 struct compound_hdr hdr;
6325 int status;
6326
Chuck Leverbf269552010-12-14 14:59:29 +00006327 status = decode_compound_hdr(xdr, &hdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006328 if (status)
6329 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006330 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006331 if (status)
6332 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006333 status = decode_putfh(xdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006334 if (status)
6335 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006336 status = decode_setattr(xdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006337out:
6338 return status;
6339}
Linus Torvalds1da177e2005-04-16 15:20:36 -07006340
6341/*
J. Bruce Fields029d1052005-06-22 17:16:22 +00006342 * Decode GETACL response
6343 */
6344static int
Chuck Leverbf269552010-12-14 14:59:29 +00006345nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
Benny Halevy663c79b2009-04-01 09:21:59 -04006346 struct nfs_getaclres *res)
J. Bruce Fields029d1052005-06-22 17:16:22 +00006347{
J. Bruce Fields029d1052005-06-22 17:16:22 +00006348 struct compound_hdr hdr;
6349 int status;
6350
Trond Myklebust331818f2012-02-03 18:30:53 -05006351 if (res->acl_scratch != NULL) {
6352 void *p = page_address(res->acl_scratch);
6353 xdr_set_scratch_buffer(xdr, p, PAGE_SIZE);
6354 }
Chuck Leverbf269552010-12-14 14:59:29 +00006355 status = decode_compound_hdr(xdr, &hdr);
J. Bruce Fields029d1052005-06-22 17:16:22 +00006356 if (status)
6357 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006358 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006359 if (status)
6360 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006361 status = decode_putfh(xdr);
J. Bruce Fields029d1052005-06-22 17:16:22 +00006362 if (status)
6363 goto out;
Andy Adamsonbf118a32011-12-07 11:55:27 -05006364 status = decode_getacl(xdr, rqstp, res);
J. Bruce Fields029d1052005-06-22 17:16:22 +00006365
6366out:
6367 return status;
6368}
6369
6370/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07006371 * Decode CLOSE response
6372 */
Chuck Leverbf269552010-12-14 14:59:29 +00006373static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6374 struct nfs_closeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006375{
Andy Adamson05d564f2008-12-23 16:06:15 -05006376 struct compound_hdr hdr;
6377 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006378
Chuck Leverbf269552010-12-14 14:59:29 +00006379 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006380 if (status)
6381 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006382 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006383 if (status)
6384 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006385 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006386 if (status)
6387 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006388 status = decode_close(xdr, res);
Trond Myklebust516a6af2005-10-27 22:12:41 -04006389 if (status != 0)
6390 goto out;
6391 /*
6392 * Note: Server may do delete on close for this file
6393 * in which case the getattr call will fail with
6394 * an ESTALE error. Shouldn't be a problem,
6395 * though, since fattr->valid will remain unset.
6396 */
Trond Myklebust6926afd2012-01-07 13:22:46 -05006397 decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006398out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006399 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006400}
6401
6402/*
6403 * Decode OPEN response
6404 */
Chuck Leverbf269552010-12-14 14:59:29 +00006405static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6406 struct nfs_openres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006407{
Andy Adamson05d564f2008-12-23 16:06:15 -05006408 struct compound_hdr hdr;
6409 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006410
Chuck Leverbf269552010-12-14 14:59:29 +00006411 status = decode_compound_hdr(xdr, &hdr);
Trond Myklebust56ae19f2005-10-27 22:12:40 -04006412 if (status)
6413 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006414 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006415 if (status)
6416 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006417 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006418 if (status)
6419 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006420 status = decode_open(xdr, res);
Andy Adamson05d564f2008-12-23 16:06:15 -05006421 if (status)
6422 goto out;
Weston Andros Adamson01913b42012-09-06 15:54:27 -04006423 status = decode_getfh(xdr, &res->fh);
6424 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006425 goto out;
Weston Andros Adamsonae2bb032012-10-02 14:49:52 -07006426 if (res->access_request)
6427 decode_access(xdr, &res->access_supported, &res->access_result);
David Quigleyaa9c2662013-05-22 12:50:44 -04006428 decode_getfattr_label(xdr, res->f_attr, res->f_label, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006429out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006430 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006431}
6432
6433/*
6434 * Decode OPEN_CONFIRM response
6435 */
Chuck Leverbf269552010-12-14 14:59:29 +00006436static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp,
6437 struct xdr_stream *xdr,
6438 struct nfs_open_confirmres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006439{
Andy Adamson05d564f2008-12-23 16:06:15 -05006440 struct compound_hdr hdr;
6441 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006442
Chuck Leverbf269552010-12-14 14:59:29 +00006443 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006444 if (status)
6445 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006446 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006447 if (status)
6448 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006449 status = decode_open_confirm(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006450out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006451 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006452}
6453
6454/*
6455 * Decode OPEN response
6456 */
Chuck Leverbf269552010-12-14 14:59:29 +00006457static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp,
6458 struct xdr_stream *xdr,
6459 struct nfs_openres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006460{
Andy Adamson05d564f2008-12-23 16:06:15 -05006461 struct compound_hdr hdr;
6462 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006463
Chuck Leverbf269552010-12-14 14:59:29 +00006464 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006465 if (status)
6466 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006467 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006468 if (status)
6469 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006470 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006471 if (status)
6472 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006473 status = decode_open(xdr, res);
Andy Adamson05d564f2008-12-23 16:06:15 -05006474 if (status)
6475 goto out;
Weston Andros Adamsonae2bb032012-10-02 14:49:52 -07006476 if (res->access_request)
6477 decode_access(xdr, &res->access_supported, &res->access_result);
Trond Myklebust6926afd2012-01-07 13:22:46 -05006478 decode_getfattr(xdr, res->f_attr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006479out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006480 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006481}
6482
6483/*
6484 * Decode SETATTR response
6485 */
Chuck Leverbf269552010-12-14 14:59:29 +00006486static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp,
6487 struct xdr_stream *xdr,
6488 struct nfs_setattrres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006489{
Andy Adamson05d564f2008-12-23 16:06:15 -05006490 struct compound_hdr hdr;
6491 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006492
Chuck Leverbf269552010-12-14 14:59:29 +00006493 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006494 if (status)
6495 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006496 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006497 if (status)
6498 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006499 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006500 if (status)
6501 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006502 status = decode_setattr(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006503 if (status)
6504 goto out;
David Quigleyaa9c2662013-05-22 12:50:44 -04006505 decode_getfattr_label(xdr, res->fattr, res->label, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006506out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006507 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006508}
6509
6510/*
6511 * Decode LOCK response
6512 */
Chuck Leverbf269552010-12-14 14:59:29 +00006513static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6514 struct nfs_lock_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006515{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006516 struct compound_hdr hdr;
6517 int status;
6518
Chuck Leverbf269552010-12-14 14:59:29 +00006519 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006520 if (status)
6521 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006522 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006523 if (status)
6524 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006525 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006526 if (status)
6527 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006528 status = decode_lock(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006529out:
6530 return status;
6531}
6532
6533/*
6534 * Decode LOCKT response
6535 */
Chuck Leverbf269552010-12-14 14:59:29 +00006536static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6537 struct nfs_lockt_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006538{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006539 struct compound_hdr hdr;
6540 int status;
6541
Chuck Leverbf269552010-12-14 14:59:29 +00006542 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006543 if (status)
6544 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006545 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006546 if (status)
6547 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006548 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006549 if (status)
6550 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006551 status = decode_lockt(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006552out:
6553 return status;
6554}
6555
6556/*
6557 * Decode LOCKU response
6558 */
Chuck Leverbf269552010-12-14 14:59:29 +00006559static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6560 struct nfs_locku_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006561{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006562 struct compound_hdr hdr;
6563 int status;
6564
Chuck Leverbf269552010-12-14 14:59:29 +00006565 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006566 if (status)
6567 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006568 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006569 if (status)
6570 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006571 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006572 if (status)
6573 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006574 status = decode_locku(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006575out:
6576 return status;
6577}
6578
Chuck Leverbf269552010-12-14 14:59:29 +00006579static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp,
6580 struct xdr_stream *xdr, void *dummy)
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04006581{
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04006582 struct compound_hdr hdr;
6583 int status;
6584
Chuck Leverbf269552010-12-14 14:59:29 +00006585 status = decode_compound_hdr(xdr, &hdr);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04006586 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006587 status = decode_release_lockowner(xdr);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04006588 return status;
6589}
6590
Linus Torvalds1da177e2005-04-16 15:20:36 -07006591/*
6592 * Decode READLINK response
6593 */
Chuck Leverbf269552010-12-14 14:59:29 +00006594static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp,
6595 struct xdr_stream *xdr,
Benny Halevyf50c7002009-04-01 09:21:55 -04006596 struct nfs4_readlink_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006597{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006598 struct compound_hdr hdr;
6599 int status;
6600
Chuck Leverbf269552010-12-14 14:59:29 +00006601 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006602 if (status)
6603 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006604 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006605 if (status)
6606 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006607 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006608 if (status)
6609 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006610 status = decode_readlink(xdr, rqstp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006611out:
6612 return status;
6613}
6614
6615/*
6616 * Decode READDIR response
6617 */
Chuck Leverbf269552010-12-14 14:59:29 +00006618static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6619 struct nfs4_readdir_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006620{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006621 struct compound_hdr hdr;
6622 int status;
6623
Chuck Leverbf269552010-12-14 14:59:29 +00006624 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006625 if (status)
6626 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006627 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006628 if (status)
6629 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006630 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006631 if (status)
6632 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006633 status = decode_readdir(xdr, rqstp, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006634out:
6635 return status;
6636}
6637
6638/*
6639 * Decode Read response
6640 */
Chuck Leverbf269552010-12-14 14:59:29 +00006641static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
Anna Schumaker9137bdf2014-05-06 09:12:25 -04006642 struct nfs_pgio_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006643{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006644 struct compound_hdr hdr;
6645 int status;
6646
Chuck Leverbf269552010-12-14 14:59:29 +00006647 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006648 if (status)
6649 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006650 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006651 if (status)
6652 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006653 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006654 if (status)
6655 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006656 status = decode_read(xdr, rqstp, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006657 if (!status)
6658 status = res->count;
6659out:
6660 return status;
6661}
6662
6663/*
6664 * Decode WRITE response
6665 */
Chuck Leverbf269552010-12-14 14:59:29 +00006666static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
Anna Schumaker9137bdf2014-05-06 09:12:25 -04006667 struct nfs_pgio_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006668{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006669 struct compound_hdr hdr;
6670 int status;
6671
Chuck Leverbf269552010-12-14 14:59:29 +00006672 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006673 if (status)
6674 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006675 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006676 if (status)
6677 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006678 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006679 if (status)
6680 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006681 status = decode_write(xdr, res);
Trond Myklebust4f9838c2005-10-27 22:12:44 -04006682 if (status)
6683 goto out;
Fred Isaman7ffd1062011-03-03 15:13:46 +00006684 if (res->fattr)
Trond Myklebust6926afd2012-01-07 13:22:46 -05006685 decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006686 if (!status)
6687 status = res->count;
6688out:
6689 return status;
6690}
6691
6692/*
6693 * Decode COMMIT response
6694 */
Chuck Leverbf269552010-12-14 14:59:29 +00006695static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
Fred Isaman0b7c0152012-04-20 14:47:39 -04006696 struct nfs_commitres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006697{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006698 struct compound_hdr hdr;
6699 int status;
6700
Chuck Leverbf269552010-12-14 14:59:29 +00006701 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006702 if (status)
6703 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006704 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006705 if (status)
6706 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006707 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006708 if (status)
6709 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006710 status = decode_commit(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006711out:
6712 return status;
6713}
6714
6715/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006716 * Decode FSINFO response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006717 */
Chuck Leverbf269552010-12-14 14:59:29 +00006718static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
Benny Halevy3dda5e42009-04-01 09:21:57 -04006719 struct nfs4_fsinfo_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006720{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006721 struct compound_hdr hdr;
6722 int status;
6723
Chuck Leverbf269552010-12-14 14:59:29 +00006724 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006725 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006726 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006727 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006728 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006729 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006730 status = decode_fsinfo(xdr, res->fsinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006731 return status;
6732}
6733
6734/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006735 * Decode PATHCONF response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006736 */
Chuck Leverbf269552010-12-14 14:59:29 +00006737static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
Benny Halevyd45b2982009-04-01 09:21:58 -04006738 struct nfs4_pathconf_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006739{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006740 struct compound_hdr hdr;
6741 int status;
6742
Chuck Leverbf269552010-12-14 14:59:29 +00006743 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006744 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006745 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006746 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006747 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006748 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006749 status = decode_pathconf(xdr, res->pathconf);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006750 return status;
6751}
6752
6753/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006754 * Decode STATFS response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006755 */
Chuck Leverbf269552010-12-14 14:59:29 +00006756static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
Benny Halevy24ad1482009-04-01 09:21:56 -04006757 struct nfs4_statfs_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006758{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006759 struct compound_hdr hdr;
6760 int status;
6761
Chuck Leverbf269552010-12-14 14:59:29 +00006762 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006763 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006764 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006765 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006766 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006767 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006768 status = decode_statfs(xdr, res->fsstat);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006769 return status;
6770}
6771
6772/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006773 * Decode GETATTR_BITMAP response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006774 */
Chuck Leverbf269552010-12-14 14:59:29 +00006775static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req,
6776 struct xdr_stream *xdr,
6777 struct nfs4_server_caps_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006778{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006779 struct compound_hdr hdr;
6780 int status;
6781
Chuck Leverbf269552010-12-14 14:59:29 +00006782 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006783 if (status)
6784 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006785 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006786 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006787 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006788 status = decode_putfh(xdr);
6789 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006790 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006791 status = decode_server_caps(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006792out:
6793 return status;
6794}
6795
6796/*
6797 * Decode RENEW response
6798 */
Chuck Leverbf269552010-12-14 14:59:29 +00006799static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6800 void *__unused)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006801{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006802 struct compound_hdr hdr;
6803 int status;
6804
Chuck Leverbf269552010-12-14 14:59:29 +00006805 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006806 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006807 status = decode_renew(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006808 return status;
6809}
6810
6811/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006812 * Decode SETCLIENTID response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006813 */
Chuck Leverbf269552010-12-14 14:59:29 +00006814static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req,
6815 struct xdr_stream *xdr,
6816 struct nfs4_setclientid_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006817{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006818 struct compound_hdr hdr;
6819 int status;
6820
Chuck Leverbf269552010-12-14 14:59:29 +00006821 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006822 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006823 status = decode_setclientid(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006824 return status;
6825}
6826
6827/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006828 * Decode SETCLIENTID_CONFIRM response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006829 */
Chuck Leverbf269552010-12-14 14:59:29 +00006830static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req,
Chuck Lever83ca7f52013-03-16 15:55:53 -04006831 struct xdr_stream *xdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006832{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006833 struct compound_hdr hdr;
6834 int status;
6835
Chuck Leverbf269552010-12-14 14:59:29 +00006836 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006837 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006838 status = decode_setclientid_confirm(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006839 return status;
6840}
6841
6842/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006843 * Decode DELEGRETURN response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006844 */
Chuck Leverbf269552010-12-14 14:59:29 +00006845static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp,
6846 struct xdr_stream *xdr,
6847 struct nfs4_delegreturnres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006848{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006849 struct compound_hdr hdr;
6850 int status;
6851
Chuck Leverbf269552010-12-14 14:59:29 +00006852 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006853 if (status)
6854 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006855 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006856 if (status)
Trond Myklebustfa178f22006-01-03 09:55:38 +01006857 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006858 status = decode_putfh(xdr);
Trond Myklebustfa178f22006-01-03 09:55:38 +01006859 if (status != 0)
6860 goto out;
Trond Myklebuste144cbc2012-04-28 16:05:03 -04006861 status = decode_getfattr(xdr, res->fattr, res->server);
Jeff Layton556ae3b2010-03-21 12:10:36 -04006862 if (status != 0)
6863 goto out;
Trond Myklebuste144cbc2012-04-28 16:05:03 -04006864 status = decode_delegreturn(xdr);
Trond Myklebustfa178f22006-01-03 09:55:38 +01006865out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07006866 return status;
6867}
6868
Trond Myklebust683b57b2006-06-09 09:34:22 -04006869/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006870 * Decode FS_LOCATIONS response
Trond Myklebust683b57b2006-06-09 09:34:22 -04006871 */
Chuck Leverbf269552010-12-14 14:59:29 +00006872static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req,
6873 struct xdr_stream *xdr,
Benny Halevy22958462009-04-01 09:22:02 -04006874 struct nfs4_fs_locations_res *res)
Trond Myklebust683b57b2006-06-09 09:34:22 -04006875{
Trond Myklebust683b57b2006-06-09 09:34:22 -04006876 struct compound_hdr hdr;
6877 int status;
6878
Chuck Leverbf269552010-12-14 14:59:29 +00006879 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006880 if (status)
6881 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006882 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006883 if (status)
Trond Myklebust683b57b2006-06-09 09:34:22 -04006884 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006885 status = decode_putfh(xdr);
6886 if (status)
Trond Myklebust683b57b2006-06-09 09:34:22 -04006887 goto out;
Chuck Leverb03d7352013-10-17 14:12:50 -04006888 if (res->migration) {
6889 xdr_enter_page(xdr, PAGE_SIZE);
6890 status = decode_getfattr_generic(xdr,
6891 &res->fs_locations->fattr,
Trond Myklebust8b7e3f42012-01-30 15:43:56 -05006892 NULL, res->fs_locations,
David Quigleyaa9c2662013-05-22 12:50:44 -04006893 NULL, res->fs_locations->server);
Chuck Leverb03d7352013-10-17 14:12:50 -04006894 if (status)
6895 goto out;
6896 if (res->renew)
6897 status = decode_renew(xdr);
6898 } else {
6899 status = decode_lookup(xdr);
6900 if (status)
6901 goto out;
6902 xdr_enter_page(xdr, PAGE_SIZE);
6903 status = decode_getfattr_generic(xdr,
6904 &res->fs_locations->fattr,
6905 NULL, res->fs_locations,
6906 NULL, res->fs_locations->server);
6907 }
Trond Myklebust683b57b2006-06-09 09:34:22 -04006908out:
6909 return status;
6910}
6911
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00006912/*
6913 * Decode SECINFO response
6914 */
6915static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp,
6916 struct xdr_stream *xdr,
6917 struct nfs4_secinfo_res *res)
6918{
6919 struct compound_hdr hdr;
6920 int status;
6921
6922 status = decode_compound_hdr(xdr, &hdr);
6923 if (status)
6924 goto out;
6925 status = decode_sequence(xdr, &res->seq_res, rqstp);
6926 if (status)
6927 goto out;
6928 status = decode_putfh(xdr);
6929 if (status)
6930 goto out;
6931 status = decode_secinfo(xdr, res);
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00006932out:
6933 return status;
6934}
6935
Chuck Lever44c99932013-10-17 14:13:30 -04006936/*
6937 * Decode FSID_PRESENT response
6938 */
6939static int nfs4_xdr_dec_fsid_present(struct rpc_rqst *rqstp,
6940 struct xdr_stream *xdr,
6941 struct nfs4_fsid_present_res *res)
6942{
6943 struct compound_hdr hdr;
6944 int status;
6945
6946 status = decode_compound_hdr(xdr, &hdr);
6947 if (status)
6948 goto out;
6949 status = decode_sequence(xdr, &res->seq_res, rqstp);
6950 if (status)
6951 goto out;
6952 status = decode_putfh(xdr);
6953 if (status)
6954 goto out;
6955 status = decode_getfh(xdr, res->fh);
6956 if (status)
6957 goto out;
6958 if (res->renew)
6959 status = decode_renew(xdr);
6960out:
6961 return status;
6962}
6963
Benny Halevy99fe60d2009-04-01 09:22:29 -04006964#if defined(CONFIG_NFS_V4_1)
6965/*
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -04006966 * Decode BIND_CONN_TO_SESSION response
6967 */
6968static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp,
6969 struct xdr_stream *xdr,
6970 void *res)
6971{
6972 struct compound_hdr hdr;
6973 int status;
6974
6975 status = decode_compound_hdr(xdr, &hdr);
6976 if (!status)
6977 status = decode_bind_conn_to_session(xdr, res);
6978 return status;
6979}
6980
6981/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006982 * Decode EXCHANGE_ID response
Benny Halevy99fe60d2009-04-01 09:22:29 -04006983 */
Chuck Leverbf269552010-12-14 14:59:29 +00006984static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp,
6985 struct xdr_stream *xdr,
Benny Halevy99fe60d2009-04-01 09:22:29 -04006986 void *res)
6987{
Benny Halevy99fe60d2009-04-01 09:22:29 -04006988 struct compound_hdr hdr;
6989 int status;
6990
Chuck Leverbf269552010-12-14 14:59:29 +00006991 status = decode_compound_hdr(xdr, &hdr);
Benny Halevy99fe60d2009-04-01 09:22:29 -04006992 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006993 status = decode_exchange_id(xdr, res);
Benny Halevy99fe60d2009-04-01 09:22:29 -04006994 return status;
6995}
Andy Adamson2050f0c2009-04-01 09:22:30 -04006996
6997/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006998 * Decode CREATE_SESSION response
Andy Adamsonfc931582009-04-01 09:22:31 -04006999 */
Chuck Leverbf269552010-12-14 14:59:29 +00007000static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp,
7001 struct xdr_stream *xdr,
Andy Adamsonfc931582009-04-01 09:22:31 -04007002 struct nfs41_create_session_res *res)
7003{
Andy Adamsonfc931582009-04-01 09:22:31 -04007004 struct compound_hdr hdr;
7005 int status;
7006
Chuck Leverbf269552010-12-14 14:59:29 +00007007 status = decode_compound_hdr(xdr, &hdr);
Andy Adamsonfc931582009-04-01 09:22:31 -04007008 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00007009 status = decode_create_session(xdr, res);
Andy Adamsonfc931582009-04-01 09:22:31 -04007010 return status;
7011}
7012
7013/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05007014 * Decode DESTROY_SESSION response
Andy Adamson0f3e66c2009-04-01 09:22:34 -04007015 */
Chuck Leverbf269552010-12-14 14:59:29 +00007016static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp,
7017 struct xdr_stream *xdr,
7018 void *res)
Andy Adamson0f3e66c2009-04-01 09:22:34 -04007019{
Andy Adamson0f3e66c2009-04-01 09:22:34 -04007020 struct compound_hdr hdr;
7021 int status;
7022
Chuck Leverbf269552010-12-14 14:59:29 +00007023 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04007024 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00007025 status = decode_destroy_session(xdr, res);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04007026 return status;
7027}
7028
7029/*
Trond Myklebust66245532012-05-25 17:18:09 -04007030 * Decode DESTROY_CLIENTID response
7031 */
7032static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp,
7033 struct xdr_stream *xdr,
7034 void *res)
7035{
7036 struct compound_hdr hdr;
7037 int status;
7038
7039 status = decode_compound_hdr(xdr, &hdr);
7040 if (!status)
7041 status = decode_destroy_clientid(xdr, res);
7042 return status;
7043}
7044
7045/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05007046 * Decode SEQUENCE response
Andy Adamsonfc01cea2009-04-01 09:22:36 -04007047 */
Chuck Leverbf269552010-12-14 14:59:29 +00007048static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp,
7049 struct xdr_stream *xdr,
Andy Adamsonfc01cea2009-04-01 09:22:36 -04007050 struct nfs4_sequence_res *res)
7051{
Andy Adamsonfc01cea2009-04-01 09:22:36 -04007052 struct compound_hdr hdr;
7053 int status;
7054
Chuck Leverbf269552010-12-14 14:59:29 +00007055 status = decode_compound_hdr(xdr, &hdr);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04007056 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00007057 status = decode_sequence(xdr, res, rqstp);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04007058 return status;
7059}
7060
7061/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05007062 * Decode GET_LEASE_TIME response
Andy Adamson2050f0c2009-04-01 09:22:30 -04007063 */
Chuck Leverbf269552010-12-14 14:59:29 +00007064static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp,
7065 struct xdr_stream *xdr,
Andy Adamson2050f0c2009-04-01 09:22:30 -04007066 struct nfs4_get_lease_time_res *res)
7067{
Andy Adamson2050f0c2009-04-01 09:22:30 -04007068 struct compound_hdr hdr;
7069 int status;
7070
Chuck Leverbf269552010-12-14 14:59:29 +00007071 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson2050f0c2009-04-01 09:22:30 -04007072 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00007073 status = decode_sequence(xdr, &res->lr_seq_res, rqstp);
Andy Adamson2050f0c2009-04-01 09:22:30 -04007074 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00007075 status = decode_putrootfh(xdr);
Andy Adamson2050f0c2009-04-01 09:22:30 -04007076 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00007077 status = decode_fsinfo(xdr, res->lr_fsinfo);
Andy Adamson2050f0c2009-04-01 09:22:30 -04007078 return status;
7079}
Ricardo Labiaga180197532009-12-05 16:08:40 -05007080
7081/*
7082 * Decode RECLAIM_COMPLETE response
7083 */
Chuck Leverbf269552010-12-14 14:59:29 +00007084static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp,
7085 struct xdr_stream *xdr,
Ricardo Labiaga180197532009-12-05 16:08:40 -05007086 struct nfs41_reclaim_complete_res *res)
7087{
Ricardo Labiaga180197532009-12-05 16:08:40 -05007088 struct compound_hdr hdr;
7089 int status;
7090
Chuck Leverbf269552010-12-14 14:59:29 +00007091 status = decode_compound_hdr(xdr, &hdr);
Ricardo Labiaga180197532009-12-05 16:08:40 -05007092 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00007093 status = decode_sequence(xdr, &res->seq_res, rqstp);
Ricardo Labiaga180197532009-12-05 16:08:40 -05007094 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00007095 status = decode_reclaim_complete(xdr, (void *)NULL);
Ricardo Labiaga180197532009-12-05 16:08:40 -05007096 return status;
7097}
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007098
7099/*
Andy Adamson7f11d8d2011-07-30 20:52:35 -04007100 * Decode GETDEVICELIST response
7101 */
7102static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp,
7103 struct xdr_stream *xdr,
7104 struct nfs4_getdevicelist_res *res)
7105{
7106 struct compound_hdr hdr;
7107 int status;
7108
7109 dprintk("encoding getdevicelist!\n");
7110
7111 status = decode_compound_hdr(xdr, &hdr);
7112 if (status != 0)
7113 goto out;
7114 status = decode_sequence(xdr, &res->seq_res, rqstp);
7115 if (status != 0)
7116 goto out;
7117 status = decode_putfh(xdr);
7118 if (status != 0)
7119 goto out;
7120 status = decode_getdevicelist(xdr, res->devlist);
7121out:
7122 return status;
7123}
7124
7125/*
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007126 * Decode GETDEVINFO response
7127 */
Chuck Leverbf269552010-12-14 14:59:29 +00007128static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp,
7129 struct xdr_stream *xdr,
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007130 struct nfs4_getdeviceinfo_res *res)
7131{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007132 struct compound_hdr hdr;
7133 int status;
7134
Chuck Leverbf269552010-12-14 14:59:29 +00007135 status = decode_compound_hdr(xdr, &hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007136 if (status != 0)
7137 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00007138 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007139 if (status != 0)
7140 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00007141 status = decode_getdeviceinfo(xdr, res->pdev);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007142out:
7143 return status;
7144}
7145
7146/*
7147 * Decode LAYOUTGET response
7148 */
Chuck Leverbf269552010-12-14 14:59:29 +00007149static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp,
7150 struct xdr_stream *xdr,
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007151 struct nfs4_layoutget_res *res)
7152{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007153 struct compound_hdr hdr;
7154 int status;
7155
Chuck Leverbf269552010-12-14 14:59:29 +00007156 status = decode_compound_hdr(xdr, &hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007157 if (status)
7158 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00007159 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007160 if (status)
7161 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00007162 status = decode_putfh(xdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007163 if (status)
7164 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00007165 status = decode_layoutget(xdr, rqstp, res);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007166out:
7167 return status;
7168}
Andy Adamson863a3c62011-03-23 13:27:54 +00007169
7170/*
Benny Halevycbe82602011-05-22 19:52:37 +03007171 * Decode LAYOUTRETURN response
7172 */
7173static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp,
7174 struct xdr_stream *xdr,
7175 struct nfs4_layoutreturn_res *res)
7176{
7177 struct compound_hdr hdr;
7178 int status;
7179
7180 status = decode_compound_hdr(xdr, &hdr);
7181 if (status)
7182 goto out;
7183 status = decode_sequence(xdr, &res->seq_res, rqstp);
7184 if (status)
7185 goto out;
7186 status = decode_putfh(xdr);
7187 if (status)
7188 goto out;
7189 status = decode_layoutreturn(xdr, res);
7190out:
7191 return status;
7192}
7193
7194/*
Andy Adamson863a3c62011-03-23 13:27:54 +00007195 * Decode LAYOUTCOMMIT response
7196 */
7197static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp,
7198 struct xdr_stream *xdr,
7199 struct nfs4_layoutcommit_res *res)
7200{
7201 struct compound_hdr hdr;
7202 int status;
7203
7204 status = decode_compound_hdr(xdr, &hdr);
7205 if (status)
7206 goto out;
7207 status = decode_sequence(xdr, &res->seq_res, rqstp);
7208 if (status)
7209 goto out;
7210 status = decode_putfh(xdr);
7211 if (status)
7212 goto out;
7213 status = decode_layoutcommit(xdr, rqstp, res);
7214 if (status)
7215 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05007216 decode_getfattr(xdr, res->fattr, res->server);
Andy Adamson863a3c62011-03-23 13:27:54 +00007217out:
7218 return status;
7219}
Bryan Schumakerfca78d62011-06-02 14:59:07 -04007220
7221/*
7222 * Decode SECINFO_NO_NAME response
7223 */
7224static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp,
7225 struct xdr_stream *xdr,
7226 struct nfs4_secinfo_res *res)
7227{
7228 struct compound_hdr hdr;
7229 int status;
7230
7231 status = decode_compound_hdr(xdr, &hdr);
7232 if (status)
7233 goto out;
7234 status = decode_sequence(xdr, &res->seq_res, rqstp);
7235 if (status)
7236 goto out;
7237 status = decode_putrootfh(xdr);
7238 if (status)
7239 goto out;
Bryan Schumaker31e4dda2012-04-27 13:27:38 -04007240 status = decode_secinfo_no_name(xdr, res);
Bryan Schumakerfca78d62011-06-02 14:59:07 -04007241out:
7242 return status;
7243}
Bryan Schumaker7d974792011-06-02 14:59:08 -04007244
7245/*
7246 * Decode TEST_STATEID response
7247 */
7248static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp,
7249 struct xdr_stream *xdr,
7250 struct nfs41_test_stateid_res *res)
7251{
7252 struct compound_hdr hdr;
7253 int status;
7254
7255 status = decode_compound_hdr(xdr, &hdr);
7256 if (status)
7257 goto out;
7258 status = decode_sequence(xdr, &res->seq_res, rqstp);
7259 if (status)
7260 goto out;
7261 status = decode_test_stateid(xdr, res);
7262out:
7263 return status;
7264}
Bryan Schumaker9aeda352011-06-02 14:59:09 -04007265
7266/*
7267 * Decode FREE_STATEID response
7268 */
7269static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp,
7270 struct xdr_stream *xdr,
7271 struct nfs41_free_stateid_res *res)
7272{
7273 struct compound_hdr hdr;
7274 int status;
7275
7276 status = decode_compound_hdr(xdr, &hdr);
7277 if (status)
7278 goto out;
7279 status = decode_sequence(xdr, &res->seq_res, rqstp);
7280 if (status)
7281 goto out;
7282 status = decode_free_stateid(xdr, res);
7283out:
7284 return status;
7285}
Benny Halevy99fe60d2009-04-01 09:22:29 -04007286#endif /* CONFIG_NFS_V4_1 */
7287
Chuck Lever573c4e12010-12-14 14:58:11 +00007288/**
7289 * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in
7290 * the local page cache.
7291 * @xdr: XDR stream where entry resides
7292 * @entry: buffer to fill in with entry data
7293 * @plus: boolean indicating whether this should be a readdirplus entry
7294 *
7295 * Returns zero if successful, otherwise a negative errno value is
7296 * returned.
7297 *
7298 * This function is not invoked during READDIR reply decoding, but
7299 * rather whenever an application invokes the getdents(2) system call
7300 * on a directory already in our cache.
7301 */
7302int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
7303 int plus)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007304{
Trond Myklebust256e48b2012-06-21 11:18:13 -04007305 unsigned int savep;
Fred Isamandae100c2011-07-30 20:52:37 -04007306 uint32_t bitmap[3] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07007307 uint32_t len;
Bryan Schumakerbabddc72010-10-20 15:44:29 -04007308 __be32 *p = xdr_inline_decode(xdr, 4);
7309 if (unlikely(!p))
7310 goto out_overflow;
Chuck Leverc08e76d2011-01-28 12:40:55 -05007311 if (*p == xdr_zero) {
Bryan Schumakerbabddc72010-10-20 15:44:29 -04007312 p = xdr_inline_decode(xdr, 4);
7313 if (unlikely(!p))
7314 goto out_overflow;
Chuck Leverc08e76d2011-01-28 12:40:55 -05007315 if (*p == xdr_zero)
Chuck Lever573c4e12010-12-14 14:58:11 +00007316 return -EAGAIN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007317 entry->eof = 1;
Chuck Lever573c4e12010-12-14 14:58:11 +00007318 return -EBADCOOKIE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007319 }
7320
Bryan Schumakerbabddc72010-10-20 15:44:29 -04007321 p = xdr_inline_decode(xdr, 12);
7322 if (unlikely(!p))
7323 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007324 entry->prev_cookie = entry->cookie;
7325 p = xdr_decode_hyper(p, &entry->cookie);
Chuck Leverc08e76d2011-01-28 12:40:55 -05007326 entry->len = be32_to_cpup(p);
Bryan Schumakerbabddc72010-10-20 15:44:29 -04007327
Trond Myklebust9af8c222010-10-24 11:52:55 -04007328 p = xdr_inline_decode(xdr, entry->len);
Bryan Schumakerbabddc72010-10-20 15:44:29 -04007329 if (unlikely(!p))
7330 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007331 entry->name = (const char *) p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007332
7333 /*
7334 * In case the server doesn't return an inode number,
7335 * we fake one here. (We don't use inode number 0,
7336 * since glibc seems to choke on it...)
7337 */
7338 entry->ino = 1;
Trond Myklebust4f082222010-10-24 13:14:02 -04007339 entry->fattr->valid = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007340
Trond Myklebust9af8c222010-10-24 11:52:55 -04007341 if (decode_attr_bitmap(xdr, bitmap) < 0)
Bryan Schumakerbabddc72010-10-20 15:44:29 -04007342 goto out_overflow;
Trond Myklebust9af8c222010-10-24 11:52:55 -04007343
Trond Myklebust256e48b2012-06-21 11:18:13 -04007344 if (decode_attr_length(xdr, &len, &savep) < 0)
Trond Myklebust9af8c222010-10-24 11:52:55 -04007345 goto out_overflow;
7346
Chuck Lever573c4e12010-12-14 14:58:11 +00007347 if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh,
David Quigleyaa9c2662013-05-22 12:50:44 -04007348 NULL, entry->label, entry->server) < 0)
Trond Myklebust9af8c222010-10-24 11:52:55 -04007349 goto out_overflow;
Trond Myklebust28331a42011-04-27 13:47:52 -04007350 if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID)
7351 entry->ino = entry->fattr->mounted_on_fileid;
7352 else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID)
Trond Myklebust9af8c222010-10-24 11:52:55 -04007353 entry->ino = entry->fattr->fileid;
7354
Trond Myklebust0b26a0b2010-11-20 14:26:44 -05007355 entry->d_type = DT_UNKNOWN;
7356 if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE)
7357 entry->d_type = nfs_umode_to_dtype(entry->fattr->mode);
7358
Chuck Lever573c4e12010-12-14 14:58:11 +00007359 return 0;
Bryan Schumakerbabddc72010-10-20 15:44:29 -04007360
7361out_overflow:
7362 print_overflow_msg(__func__, xdr);
Chuck Lever573c4e12010-12-14 14:58:11 +00007363 return -EAGAIN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007364}
7365
7366/*
7367 * We need to translate between nfs status return values and
7368 * the local errno values which may not be the same.
7369 */
7370static struct {
7371 int stat;
7372 int errno;
7373} nfs_errtbl[] = {
7374 { NFS4_OK, 0 },
Benny Halevy856dff32008-03-31 17:39:06 +03007375 { NFS4ERR_PERM, -EPERM },
7376 { NFS4ERR_NOENT, -ENOENT },
7377 { NFS4ERR_IO, -errno_NFSERR_IO},
7378 { NFS4ERR_NXIO, -ENXIO },
7379 { NFS4ERR_ACCESS, -EACCES },
7380 { NFS4ERR_EXIST, -EEXIST },
7381 { NFS4ERR_XDEV, -EXDEV },
7382 { NFS4ERR_NOTDIR, -ENOTDIR },
7383 { NFS4ERR_ISDIR, -EISDIR },
7384 { NFS4ERR_INVAL, -EINVAL },
7385 { NFS4ERR_FBIG, -EFBIG },
7386 { NFS4ERR_NOSPC, -ENOSPC },
7387 { NFS4ERR_ROFS, -EROFS },
7388 { NFS4ERR_MLINK, -EMLINK },
7389 { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG },
7390 { NFS4ERR_NOTEMPTY, -ENOTEMPTY },
7391 { NFS4ERR_DQUOT, -EDQUOT },
7392 { NFS4ERR_STALE, -ESTALE },
7393 { NFS4ERR_BADHANDLE, -EBADHANDLE },
Benny Halevy856dff32008-03-31 17:39:06 +03007394 { NFS4ERR_BAD_COOKIE, -EBADCOOKIE },
7395 { NFS4ERR_NOTSUPP, -ENOTSUPP },
7396 { NFS4ERR_TOOSMALL, -ETOOSMALL },
Trond Myklebustfdcb4572010-02-08 09:32:40 -05007397 { NFS4ERR_SERVERFAULT, -EREMOTEIO },
Benny Halevy856dff32008-03-31 17:39:06 +03007398 { NFS4ERR_BADTYPE, -EBADTYPE },
7399 { NFS4ERR_LOCKED, -EAGAIN },
Benny Halevy856dff32008-03-31 17:39:06 +03007400 { NFS4ERR_SYMLINK, -ELOOP },
7401 { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP },
7402 { NFS4ERR_DEADLOCK, -EDEADLK },
Benny Halevy856dff32008-03-31 17:39:06 +03007403 { -1, -EIO }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007404};
7405
7406/*
7407 * Convert an NFS error code to a local one.
7408 * This one is used jointly by NFSv2 and NFSv3.
7409 */
7410static int
David Howells0a8ea432006-08-22 20:06:08 -04007411nfs4_stat_to_errno(int stat)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007412{
7413 int i;
7414 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
7415 if (nfs_errtbl[i].stat == stat)
7416 return nfs_errtbl[i].errno;
7417 }
7418 if (stat <= 10000 || stat > 10100) {
7419 /* The server is looney tunes. */
Trond Myklebustfdcb4572010-02-08 09:32:40 -05007420 return -EREMOTEIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007421 }
7422 /* If we cannot translate the error, the recovery routines should
7423 * handle it.
7424 * Note: remaining NFSv4 error codes have values > 10000, so should
7425 * not conflict with native Linux error codes.
7426 */
Benny Halevy856dff32008-03-31 17:39:06 +03007427 return -stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007428}
7429
Linus Torvalds1da177e2005-04-16 15:20:36 -07007430#define PROC(proc, argtype, restype) \
7431[NFSPROC4_CLNT_##proc] = { \
7432 .p_proc = NFSPROC4_COMPOUND, \
Chuck Lever9f06c712010-12-14 14:59:18 +00007433 .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \
Chuck Leverbf269552010-12-14 14:59:29 +00007434 .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \
Chuck Lever2bea90d2007-03-29 16:47:53 -04007435 .p_arglen = NFS4_##argtype##_sz, \
7436 .p_replen = NFS4_##restype##_sz, \
Chuck Levercc0175c2006-03-20 13:44:22 -05007437 .p_statidx = NFSPROC4_CLNT_##proc, \
7438 .p_name = #proc, \
Andy Adamson05d564f2008-12-23 16:06:15 -05007439}
Linus Torvalds1da177e2005-04-16 15:20:36 -07007440
7441struct rpc_procinfo nfs4_procedures[] = {
Chuck Lever7d93bd712010-12-14 14:57:42 +00007442 PROC(READ, enc_read, dec_read),
7443 PROC(WRITE, enc_write, dec_write),
7444 PROC(COMMIT, enc_commit, dec_commit),
7445 PROC(OPEN, enc_open, dec_open),
7446 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
7447 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
7448 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
7449 PROC(CLOSE, enc_close, dec_close),
7450 PROC(SETATTR, enc_setattr, dec_setattr),
7451 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
7452 PROC(RENEW, enc_renew, dec_renew),
7453 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
7454 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
7455 PROC(LOCK, enc_lock, dec_lock),
7456 PROC(LOCKT, enc_lockt, dec_lockt),
7457 PROC(LOCKU, enc_locku, dec_locku),
7458 PROC(ACCESS, enc_access, dec_access),
7459 PROC(GETATTR, enc_getattr, dec_getattr),
7460 PROC(LOOKUP, enc_lookup, dec_lookup),
7461 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
7462 PROC(REMOVE, enc_remove, dec_remove),
7463 PROC(RENAME, enc_rename, dec_rename),
7464 PROC(LINK, enc_link, dec_link),
7465 PROC(SYMLINK, enc_symlink, dec_symlink),
7466 PROC(CREATE, enc_create, dec_create),
7467 PROC(PATHCONF, enc_pathconf, dec_pathconf),
7468 PROC(STATFS, enc_statfs, dec_statfs),
7469 PROC(READLINK, enc_readlink, dec_readlink),
7470 PROC(READDIR, enc_readdir, dec_readdir),
7471 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
7472 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
7473 PROC(GETACL, enc_getacl, dec_getacl),
7474 PROC(SETACL, enc_setacl, dec_setacl),
7475 PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
7476 PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner),
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00007477 PROC(SECINFO, enc_secinfo, dec_secinfo),
Chuck Lever44c99932013-10-17 14:13:30 -04007478 PROC(FSID_PRESENT, enc_fsid_present, dec_fsid_present),
Benny Halevy99fe60d2009-04-01 09:22:29 -04007479#if defined(CONFIG_NFS_V4_1)
Chuck Lever7d93bd712010-12-14 14:57:42 +00007480 PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
7481 PROC(CREATE_SESSION, enc_create_session, dec_create_session),
7482 PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session),
7483 PROC(SEQUENCE, enc_sequence, dec_sequence),
7484 PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time),
7485 PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete),
7486 PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo),
7487 PROC(LAYOUTGET, enc_layoutget, dec_layoutget),
Andy Adamson863a3c62011-03-23 13:27:54 +00007488 PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit),
Benny Halevycbe82602011-05-22 19:52:37 +03007489 PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn),
Bryan Schumakerfca78d62011-06-02 14:59:07 -04007490 PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name),
Bryan Schumaker7d974792011-06-02 14:59:08 -04007491 PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid),
Bryan Schumaker9aeda352011-06-02 14:59:09 -04007492 PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid),
Andy Adamson7f11d8d2011-07-30 20:52:35 -04007493 PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist),
Trond Myklebustad24ecf2012-05-25 17:11:42 -04007494 PROC(BIND_CONN_TO_SESSION,
7495 enc_bind_conn_to_session, dec_bind_conn_to_session),
Trond Myklebust66245532012-05-25 17:18:09 -04007496 PROC(DESTROY_CLIENTID, enc_destroy_clientid, dec_destroy_clientid),
Benny Halevy99fe60d2009-04-01 09:22:29 -04007497#endif /* CONFIG_NFS_V4_1 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007498};
7499
Trond Myklebusta613fa12012-01-20 13:53:56 -05007500const struct rpc_version nfs_version4 = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007501 .number = 4,
Tobias Klausere8c96f82006-03-24 03:15:34 -08007502 .nrprocs = ARRAY_SIZE(nfs4_procedures),
Linus Torvalds1da177e2005-04-16 15:20:36 -07007503 .procs = nfs4_procedures
7504};
7505
7506/*
7507 * Local variables:
7508 * c-basic-offset: 8
7509 * End:
7510 */