blob: 6b28a605c6972c56af56cc35c1d487d6b378f841 [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 */ + \
Chuck Lever6dd34362014-11-08 20:15:18 -0500144 1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
145 1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
Chuck Levercc38bac2007-12-10 14:56:54 -0500146 1) /* sc_cb_ident */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147#define decode_setclientid_maxsz \
148 (op_decode_hdr_maxsz + \
Chuck Lever6dd34362014-11-08 20:15:18 -0500149 2 /* clientid */ + \
150 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
151 1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
152 1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153#define encode_setclientid_confirm_maxsz \
154 (op_encode_hdr_maxsz + \
155 3 + (NFS4_VERIFIER_SIZE >> 2))
156#define decode_setclientid_confirm_maxsz \
157 (op_decode_hdr_maxsz)
Trond Myklebuste6889622007-07-02 13:58:30 -0400158#define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
159#define decode_lookup_maxsz (op_decode_hdr_maxsz)
Trond Myklebust2cebf822007-07-02 13:57:28 -0400160#define encode_share_access_maxsz \
161 (2)
Alexandros Batsakis4882ef72009-12-05 13:30:21 -0500162#define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
Trond Myklebust2cebf822007-07-02 13:57:28 -0400163#define encode_opentype_maxsz (1 + encode_createmode_maxsz)
164#define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
165#define encode_open_maxsz (op_encode_hdr_maxsz + \
166 2 + encode_share_access_maxsz + 2 + \
167 open_owner_id_maxsz + \
168 encode_opentype_maxsz + \
169 encode_claim_null_maxsz)
170#define decode_ace_maxsz (3 + nfs4_owner_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400171#define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400172 decode_ace_maxsz)
173#define decode_change_info_maxsz (5)
174#define decode_open_maxsz (op_decode_hdr_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400175 decode_stateid_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400176 decode_change_info_maxsz + 1 + \
177 nfs4_fattr_bitmap_maxsz + \
178 decode_delegation_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400179#define encode_open_confirm_maxsz \
180 (op_encode_hdr_maxsz + \
181 encode_stateid_maxsz + 1)
182#define decode_open_confirm_maxsz \
183 (op_decode_hdr_maxsz + \
184 decode_stateid_maxsz)
185#define encode_open_downgrade_maxsz \
186 (op_encode_hdr_maxsz + \
187 encode_stateid_maxsz + 1 + \
188 encode_share_access_maxsz)
189#define decode_open_downgrade_maxsz \
190 (op_decode_hdr_maxsz + \
191 decode_stateid_maxsz)
192#define encode_close_maxsz (op_encode_hdr_maxsz + \
193 1 + encode_stateid_maxsz)
194#define decode_close_maxsz (op_decode_hdr_maxsz + \
195 decode_stateid_maxsz)
196#define encode_setattr_maxsz (op_encode_hdr_maxsz + \
197 encode_stateid_maxsz + \
198 encode_attrs_maxsz)
199#define decode_setattr_maxsz (op_decode_hdr_maxsz + \
200 nfs4_fattr_bitmap_maxsz)
201#define encode_read_maxsz (op_encode_hdr_maxsz + \
202 encode_stateid_maxsz + 3)
203#define decode_read_maxsz (op_decode_hdr_maxsz + 2)
204#define encode_readdir_maxsz (op_encode_hdr_maxsz + \
David Quigleyaa9c2662013-05-22 12:50:44 -0400205 2 + encode_verifier_maxsz + 5 + \
206 nfs4_label_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400207#define decode_readdir_maxsz (op_decode_hdr_maxsz + \
Chuck Levera7697f62014-03-12 12:51:17 -0400208 decode_verifier_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400209#define encode_readlink_maxsz (op_encode_hdr_maxsz)
210#define decode_readlink_maxsz (op_decode_hdr_maxsz + 1)
211#define encode_write_maxsz (op_encode_hdr_maxsz + \
212 encode_stateid_maxsz + 4)
213#define decode_write_maxsz (op_decode_hdr_maxsz + \
214 2 + decode_verifier_maxsz)
215#define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
216#define decode_commit_maxsz (op_decode_hdr_maxsz + \
217 decode_verifier_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218#define encode_remove_maxsz (op_encode_hdr_maxsz + \
219 nfs4_name_maxsz)
Benny Halevy6ce18392009-04-01 09:22:06 -0400220#define decode_remove_maxsz (op_decode_hdr_maxsz + \
221 decode_change_info_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222#define encode_rename_maxsz (op_encode_hdr_maxsz + \
223 2 * nfs4_name_maxsz)
Benny Halevy6ce18392009-04-01 09:22:06 -0400224#define decode_rename_maxsz (op_decode_hdr_maxsz + \
225 decode_change_info_maxsz + \
226 decode_change_info_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227#define encode_link_maxsz (op_encode_hdr_maxsz + \
228 nfs4_name_maxsz)
Benny Halevy6ce18392009-04-01 09:22:06 -0400229#define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
Trond Myklebustdaccbde2010-06-25 18:11:43 -0400230#define encode_lockowner_maxsz (7)
Trond Myklebust9104a552007-07-17 21:52:42 -0400231#define encode_lock_maxsz (op_encode_hdr_maxsz + \
232 7 + \
Trond Myklebustdaccbde2010-06-25 18:11:43 -0400233 1 + encode_stateid_maxsz + 1 + \
234 encode_lockowner_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400235#define decode_lock_denied_maxsz \
236 (8 + decode_lockowner_maxsz)
237#define decode_lock_maxsz (op_decode_hdr_maxsz + \
238 decode_lock_denied_maxsz)
Trond Myklebustdaccbde2010-06-25 18:11:43 -0400239#define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
240 encode_lockowner_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400241#define decode_lockt_maxsz (op_decode_hdr_maxsz + \
242 decode_lock_denied_maxsz)
243#define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
244 encode_stateid_maxsz + \
245 4)
246#define decode_locku_maxsz (op_decode_hdr_maxsz + \
247 decode_stateid_maxsz)
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -0400248#define encode_release_lockowner_maxsz \
249 (op_encode_hdr_maxsz + \
250 encode_lockowner_maxsz)
251#define decode_release_lockowner_maxsz \
252 (op_decode_hdr_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400253#define encode_access_maxsz (op_encode_hdr_maxsz + 1)
254#define decode_access_maxsz (op_decode_hdr_maxsz + 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255#define encode_symlink_maxsz (op_encode_hdr_maxsz + \
256 1 + nfs4_name_maxsz + \
Chuck Lever94a6d752006-08-22 20:06:23 -0400257 1 + \
J. Bruce Fields96928202005-06-22 17:16:22 +0000258 nfs4_fattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259#define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
260#define encode_create_maxsz (op_encode_hdr_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400261 1 + 2 + nfs4_name_maxsz + \
262 encode_attrs_maxsz)
Trond Myklebust2cebf822007-07-02 13:57:28 -0400263#define decode_create_maxsz (op_decode_hdr_maxsz + \
264 decode_change_info_maxsz + \
265 nfs4_fattr_bitmap_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400266#define encode_statfs_maxsz (encode_getattr_maxsz)
267#define decode_statfs_maxsz (decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268#define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
269#define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400270#define encode_getacl_maxsz (encode_getattr_maxsz)
271#define decode_getacl_maxsz (op_decode_hdr_maxsz + \
272 nfs4_fattr_bitmap_maxsz + 1)
273#define encode_setacl_maxsz (op_encode_hdr_maxsz + \
274 encode_stateid_maxsz + 3)
275#define decode_setacl_maxsz (decode_setattr_maxsz)
Trond Myklebuste6889622007-07-02 13:58:30 -0400276#define encode_fs_locations_maxsz \
277 (encode_getattr_maxsz)
278#define decode_fs_locations_maxsz \
279 (0)
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +0000280#define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
Bryan Schumaker1650add2011-06-02 15:07:35 -0400281#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 -0400282
283#if defined(CONFIG_NFS_V4_1)
Andy Adamsonfc931582009-04-01 09:22:31 -0400284#define NFS4_MAX_MACHINE_NAME_LEN (64)
Jim Reesd751f742012-11-16 18:12:06 -0500285#define IMPL_NAME_LIMIT (sizeof(utsname()->sysname) + sizeof(utsname()->release) + \
286 sizeof(utsname()->version) + sizeof(utsname()->machine) + 8)
Andy Adamsonfc931582009-04-01 09:22:31 -0400287
Benny Halevy99fe60d2009-04-01 09:22:29 -0400288#define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
289 encode_verifier_maxsz + \
290 1 /* co_ownerid.len */ + \
291 XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \
292 1 /* flags */ + \
293 1 /* spa_how */ + \
Weston Andros Adamson2031cd12013-08-13 16:37:32 -0400294 /* max is SP4_MACH_CRED (for now) */ + \
295 1 + NFS4_OP_MAP_NUM_WORDS + \
296 1 + NFS4_OP_MAP_NUM_WORDS + \
Weston Andros Adamsondb8ac8b2012-02-17 15:20:24 -0500297 1 /* implementation id array of size 1 */ + \
298 1 /* nii_domain */ + \
299 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
300 1 /* nii_name */ + \
Jim Reesd751f742012-11-16 18:12:06 -0500301 XDR_QUADLEN(IMPL_NAME_LIMIT) + \
Weston Andros Adamsondb8ac8b2012-02-17 15:20:24 -0500302 3 /* nii_date */)
Benny Halevy99fe60d2009-04-01 09:22:29 -0400303#define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
304 2 /* eir_clientid */ + \
305 1 /* eir_sequenceid */ + \
306 1 /* eir_flags */ + \
307 1 /* spr_how */ + \
Weston Andros Adamson2031cd12013-08-13 16:37:32 -0400308 /* max is SP4_MACH_CRED (for now) */ + \
309 1 + NFS4_OP_MAP_NUM_WORDS + \
310 1 + NFS4_OP_MAP_NUM_WORDS + \
Benny Halevy99fe60d2009-04-01 09:22:29 -0400311 2 /* eir_server_owner.so_minor_id */ + \
312 /* eir_server_owner.so_major_id<> */ \
313 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
314 /* eir_server_scope<> */ \
315 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
316 1 /* eir_server_impl_id array length */ + \
Weston Andros Adamson7d2ed9a2012-02-17 15:20:26 -0500317 1 /* nii_domain */ + \
318 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
319 1 /* nii_name */ + \
320 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
321 3 /* nii_date */)
Andy Adamsonfc931582009-04-01 09:22:31 -0400322#define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
323#define decode_channel_attrs_maxsz (6 + \
324 1 /* ca_rdma_ird.len */ + \
325 1 /* ca_rdma_ird */)
326#define encode_create_session_maxsz (op_encode_hdr_maxsz + \
327 2 /* csa_clientid */ + \
328 1 /* csa_sequence */ + \
329 1 /* csa_flags */ + \
330 encode_channel_attrs_maxsz + \
331 encode_channel_attrs_maxsz + \
332 1 /* csa_cb_program */ + \
333 1 /* csa_sec_parms.len (1) */ + \
334 1 /* cb_secflavor (AUTH_SYS) */ + \
335 1 /* stamp */ + \
336 1 /* machinename.len */ + \
337 XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
338 1 /* uid */ + \
339 1 /* gid */ + \
340 1 /* gids.len (0) */)
341#define decode_create_session_maxsz (op_decode_hdr_maxsz + \
342 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
343 1 /* csr_sequence */ + \
344 1 /* csr_flags */ + \
345 decode_channel_attrs_maxsz + \
346 decode_channel_attrs_maxsz)
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -0400347#define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \
348 /* bctsa_sessid */ \
349 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
350 1 /* bctsa_dir */ + \
351 1 /* bctsa_use_conn_in_rdma_mode */)
352#define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \
353 /* bctsr_sessid */ \
354 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
355 1 /* bctsr_dir */ + \
356 1 /* bctsr_use_conn_in_rdma_mode */)
Andy Adamson0f3e66c2009-04-01 09:22:34 -0400357#define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
358#define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
Trond Myklebust66245532012-05-25 17:18:09 -0400359#define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2)
360#define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz)
Andy Adamsonfc01cea2009-04-01 09:22:36 -0400361#define encode_sequence_maxsz (op_encode_hdr_maxsz + \
362 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
363#define decode_sequence_maxsz (op_decode_hdr_maxsz + \
364 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
Ricardo Labiaga180197532009-12-05 16:08:40 -0500365#define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
366#define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
Christoph Hellwig84c9dee2014-09-10 17:37:28 -0700367#define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + \
368 XDR_QUADLEN(NFS4_DEVICEID4_SIZE) + \
369 1 /* layout type */ + \
370 1 /* maxcount */ + \
371 1 /* bitmap size */ + \
372 1 /* notification bitmap length */ + \
373 1 /* notification bitmap, word 0 */)
Andy Adamsonb1f69b72010-10-20 00:18:03 -0400374#define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \
375 1 /* layout type */ + \
376 1 /* opaque devaddr4 length */ + \
377 /* devaddr4 payload is read into page */ \
378 1 /* notification bitmap length */ + \
Christoph Hellwig84c9dee2014-09-10 17:37:28 -0700379 1 /* notification bitmap, word 0 */)
Andy Adamsonb1f69b72010-10-20 00:18:03 -0400380#define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \
381 encode_stateid_maxsz)
382#define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \
383 decode_stateid_maxsz + \
384 XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE))
Andy Adamson863a3c62011-03-23 13:27:54 +0000385#define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \
386 2 /* offset */ + \
387 2 /* length */ + \
388 1 /* reclaim */ + \
389 encode_stateid_maxsz + \
390 1 /* new offset (true) */ + \
391 2 /* last byte written */ + \
392 1 /* nt_timechanged (false) */ + \
393 1 /* layoutupdate4 layout type */ + \
Christoph Hellwig5f919c92014-08-21 11:09:25 -0500394 1 /* layoutupdate4 opaqueue len */)
395 /* the actual content of layoutupdate4 should
396 be allocated by drivers and spliced in
397 using xdr_write_pages */
Andy Adamson863a3c62011-03-23 13:27:54 +0000398#define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3)
Benny Halevycbe82602011-05-22 19:52:37 +0300399#define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \
400 encode_stateid_maxsz + \
401 1 /* FIXME: opaque lrf_body always empty at the moment */)
402#define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \
403 1 + decode_stateid_maxsz)
Bryan Schumakerfca78d62011-06-02 14:59:07 -0400404#define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1)
405#define decode_secinfo_no_name_maxsz decode_secinfo_maxsz
Bryan Schumaker7d974792011-06-02 14:59:08 -0400406#define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \
407 XDR_QUADLEN(NFS4_STATEID_SIZE))
408#define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1)
Bryan Schumaker9aeda352011-06-02 14:59:09 -0400409#define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \
410 XDR_QUADLEN(NFS4_STATEID_SIZE))
Andy Adamson9f79fb42013-09-10 12:56:29 -0400411#define decode_free_stateid_maxsz (op_decode_hdr_maxsz)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400412#else /* CONFIG_NFS_V4_1 */
413#define encode_sequence_maxsz 0
414#define decode_sequence_maxsz 0
415#endif /* CONFIG_NFS_V4_1 */
416
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417#define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
418#define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
419#define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400420 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400422 encode_read_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423#define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400424 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400426 decode_read_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427#define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400428 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400430 encode_readlink_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431#define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400432 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400434 decode_readlink_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435#define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400436 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400438 encode_readdir_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439#define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400440 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400442 decode_readdir_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443#define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400444 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400446 encode_write_maxsz + \
Trond Myklebust4f9838c2005-10-27 22:12:44 -0400447 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448#define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400449 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400451 decode_write_maxsz + \
Trond Myklebust4f9838c2005-10-27 22:12:44 -0400452 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453#define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400454 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455 encode_putfh_maxsz + \
Trond Myklebust85827152012-04-29 10:44:42 -0400456 encode_commit_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457#define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400458 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459 decode_putfh_maxsz + \
Trond Myklebust85827152012-04-29 10:44:42 -0400460 decode_commit_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461#define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400462 encode_sequence_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400463 encode_putfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400464 encode_open_maxsz + \
Weston Andros Adamson6168f622012-09-10 14:00:46 -0400465 encode_access_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400466 encode_getfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400467 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700468#define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400469 decode_sequence_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400470 decode_putfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400471 decode_open_maxsz + \
Weston Andros Adamson6168f622012-09-10 14:00:46 -0400472 decode_access_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400473 decode_getfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400474 decode_getattr_maxsz)
Trond Myklebust9104a552007-07-17 21:52:42 -0400475#define NFS4_enc_open_confirm_sz \
476 (compound_encode_hdr_maxsz + \
477 encode_putfh_maxsz + \
478 encode_open_confirm_maxsz)
479#define NFS4_dec_open_confirm_sz \
480 (compound_decode_hdr_maxsz + \
481 decode_putfh_maxsz + \
482 decode_open_confirm_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483#define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400484 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700485 encode_putfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400486 encode_open_maxsz + \
Weston Andros Adamson6168f622012-09-10 14:00:46 -0400487 encode_access_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400488 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489#define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400490 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491 decode_putfh_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400492 decode_open_maxsz + \
Weston Andros Adamson6168f622012-09-10 14:00:46 -0400493 decode_access_maxsz + \
Trond Myklebust2cebf822007-07-02 13:57:28 -0400494 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495#define NFS4_enc_open_downgrade_sz \
496 (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400497 encode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400498 encode_putfh_maxsz + \
499 encode_open_downgrade_maxsz + \
500 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501#define NFS4_dec_open_downgrade_sz \
502 (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400503 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400504 decode_putfh_maxsz + \
505 decode_open_downgrade_maxsz + \
506 decode_getattr_maxsz)
507#define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400508 encode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400509 encode_putfh_maxsz + \
510 encode_close_maxsz + \
511 encode_getattr_maxsz)
512#define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400513 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400514 decode_putfh_maxsz + \
515 decode_close_maxsz + \
516 decode_getattr_maxsz)
517#define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400518 encode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400519 encode_putfh_maxsz + \
520 encode_setattr_maxsz + \
521 encode_getattr_maxsz)
522#define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400523 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400524 decode_putfh_maxsz + \
525 decode_setattr_maxsz + \
526 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527#define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400528 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529 encode_putfh_maxsz + \
530 encode_fsinfo_maxsz)
531#define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400532 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533 decode_putfh_maxsz + \
534 decode_fsinfo_maxsz)
535#define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
536 encode_renew_maxsz)
537#define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
538 decode_renew_maxsz)
539#define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
540 encode_setclientid_maxsz)
541#define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
542 decode_setclientid_maxsz)
543#define NFS4_enc_setclientid_confirm_sz \
544 (compound_encode_hdr_maxsz + \
Chuck Lever83ca7f52013-03-16 15:55:53 -0400545 encode_setclientid_confirm_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546#define NFS4_dec_setclientid_confirm_sz \
547 (compound_decode_hdr_maxsz + \
Chuck Lever83ca7f52013-03-16 15:55:53 -0400548 decode_setclientid_confirm_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700549#define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400550 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400552 encode_lock_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553#define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400554 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700555 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400556 decode_lock_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700557#define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400558 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700559 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400560 encode_lockt_maxsz)
561#define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400562 decode_sequence_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400563 decode_putfh_maxsz + \
564 decode_lockt_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700565#define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400566 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700567 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400568 encode_locku_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700569#define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400570 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700571 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400572 decode_locku_maxsz)
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -0400573#define NFS4_enc_release_lockowner_sz \
574 (compound_encode_hdr_maxsz + \
575 encode_lockowner_maxsz)
576#define NFS4_dec_release_lockowner_sz \
577 (compound_decode_hdr_maxsz + \
578 decode_lockowner_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579#define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400580 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581 encode_putfh_maxsz + \
Trond Myklebust76b32992007-08-10 17:45:11 -0400582 encode_access_maxsz + \
583 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700584#define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400585 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586 decode_putfh_maxsz + \
Trond Myklebust76b32992007-08-10 17:45:11 -0400587 decode_access_maxsz + \
588 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589#define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400590 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700591 encode_putfh_maxsz + \
Chuck Lever44c99932013-10-17 14:13:30 -0400592 encode_getattr_maxsz + \
593 encode_renew_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700594#define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400595 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596 decode_putfh_maxsz + \
Chuck Lever44c99932013-10-17 14:13:30 -0400597 decode_getattr_maxsz + \
598 decode_renew_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700599#define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400600 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601 encode_putfh_maxsz + \
602 encode_lookup_maxsz + \
603 encode_getattr_maxsz + \
604 encode_getfh_maxsz)
605#define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400606 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607 decode_putfh_maxsz + \
Trond Myklebuste6889622007-07-02 13:58:30 -0400608 decode_lookup_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609 decode_getattr_maxsz + \
610 decode_getfh_maxsz)
611#define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400612 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700613 encode_putrootfh_maxsz + \
614 encode_getattr_maxsz + \
615 encode_getfh_maxsz)
616#define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400617 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618 decode_putrootfh_maxsz + \
619 decode_getattr_maxsz + \
620 decode_getfh_maxsz)
621#define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400622 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623 encode_putfh_maxsz + \
Trond Myklebust778d2812012-04-27 13:48:19 -0400624 encode_remove_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700625#define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400626 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627 decode_putfh_maxsz + \
Trond Myklebust778d2812012-04-27 13:48:19 -0400628 decode_remove_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700629#define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400630 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631 encode_putfh_maxsz + \
632 encode_savefh_maxsz + \
633 encode_putfh_maxsz + \
Trond Myklebust778d2812012-04-27 13:48:19 -0400634 encode_rename_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635#define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400636 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637 decode_putfh_maxsz + \
638 decode_savefh_maxsz + \
639 decode_putfh_maxsz + \
Trond Myklebust778d2812012-04-27 13:48:19 -0400640 decode_rename_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700641#define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400642 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700643 encode_putfh_maxsz + \
644 encode_savefh_maxsz + \
645 encode_putfh_maxsz + \
Trond Myklebust91ba2ee2005-10-27 22:12:42 -0400646 encode_link_maxsz + \
Trond Myklebust91ba2ee2005-10-27 22:12:42 -0400647 encode_restorefh_maxsz + \
Trond Myklebusta9f69912012-04-27 13:48:17 -0400648 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700649#define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400650 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651 decode_putfh_maxsz + \
652 decode_savefh_maxsz + \
653 decode_putfh_maxsz + \
Trond Myklebust91ba2ee2005-10-27 22:12:42 -0400654 decode_link_maxsz + \
Trond Myklebust91ba2ee2005-10-27 22:12:42 -0400655 decode_restorefh_maxsz + \
656 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657#define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400658 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700659 encode_putfh_maxsz + \
660 encode_symlink_maxsz + \
661 encode_getattr_maxsz + \
662 encode_getfh_maxsz)
663#define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400664 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665 decode_putfh_maxsz + \
666 decode_symlink_maxsz + \
667 decode_getattr_maxsz + \
668 decode_getfh_maxsz)
669#define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400670 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671 encode_putfh_maxsz + \
672 encode_create_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400673 encode_getfh_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400674 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700675#define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400676 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677 decode_putfh_maxsz + \
678 decode_create_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400679 decode_getfh_maxsz + \
Trond Myklebust56ae19f2005-10-27 22:12:40 -0400680 decode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681#define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400682 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683 encode_putfh_maxsz + \
684 encode_getattr_maxsz)
685#define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400686 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700687 decode_putfh_maxsz + \
688 decode_getattr_maxsz)
689#define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400690 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400692 encode_statfs_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700693#define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400694 decode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700695 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400696 decode_statfs_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697#define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400698 encode_sequence_maxsz + \
Trond Myklebustab91f262007-02-02 14:47:17 -0800699 encode_putfh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700 encode_getattr_maxsz)
701#define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400702 decode_sequence_maxsz + \
Trond Myklebustab91f262007-02-02 14:47:17 -0800703 decode_putfh_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704 decode_getattr_maxsz)
705#define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400706 encode_sequence_maxsz + \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700707 encode_putfh_maxsz + \
Trond Myklebustfa178f22006-01-03 09:55:38 +0100708 encode_delegreturn_maxsz + \
709 encode_getattr_maxsz)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710#define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400711 decode_sequence_maxsz + \
Trond Myklebustfa178f22006-01-03 09:55:38 +0100712 decode_delegreturn_maxsz + \
713 decode_getattr_maxsz)
J. Bruce Fields029d1052005-06-22 17:16:22 +0000714#define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400715 encode_sequence_maxsz + \
J. Bruce Fields029d1052005-06-22 17:16:22 +0000716 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400717 encode_getacl_maxsz)
J. Bruce Fields029d1052005-06-22 17:16:22 +0000718#define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400719 decode_sequence_maxsz + \
J. Bruce Fields029d1052005-06-22 17:16:22 +0000720 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400721 decode_getacl_maxsz)
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000722#define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400723 encode_sequence_maxsz + \
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000724 encode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400725 encode_setacl_maxsz)
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000726#define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400727 decode_sequence_maxsz + \
J. Bruce Fields23ec6962005-06-22 17:16:22 +0000728 decode_putfh_maxsz + \
Trond Myklebust9104a552007-07-17 21:52:42 -0400729 decode_setacl_maxsz)
Trond Myklebust683b57b2006-06-09 09:34:22 -0400730#define NFS4_enc_fs_locations_sz \
731 (compound_encode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400732 encode_sequence_maxsz + \
Trond Myklebust683b57b2006-06-09 09:34:22 -0400733 encode_putfh_maxsz + \
Trond Myklebuste6889622007-07-02 13:58:30 -0400734 encode_lookup_maxsz + \
Chuck Leverb03d7352013-10-17 14:12:50 -0400735 encode_fs_locations_maxsz + \
736 encode_renew_maxsz)
Trond Myklebust683b57b2006-06-09 09:34:22 -0400737#define NFS4_dec_fs_locations_sz \
738 (compound_decode_hdr_maxsz + \
Andy Adamson9b7b9fc2009-04-01 09:22:11 -0400739 decode_sequence_maxsz + \
Trond Myklebust683b57b2006-06-09 09:34:22 -0400740 decode_putfh_maxsz + \
Trond Myklebuste6889622007-07-02 13:58:30 -0400741 decode_lookup_maxsz + \
Chuck Leverb03d7352013-10-17 14:12:50 -0400742 decode_fs_locations_maxsz + \
743 decode_renew_maxsz)
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +0000744#define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \
745 encode_sequence_maxsz + \
746 encode_putfh_maxsz + \
747 encode_secinfo_maxsz)
748#define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \
749 decode_sequence_maxsz + \
750 decode_putfh_maxsz + \
751 decode_secinfo_maxsz)
Chuck Lever44c99932013-10-17 14:13:30 -0400752#define NFS4_enc_fsid_present_sz \
753 (compound_encode_hdr_maxsz + \
754 encode_sequence_maxsz + \
755 encode_putfh_maxsz + \
756 encode_getfh_maxsz + \
757 encode_renew_maxsz)
758#define NFS4_dec_fsid_present_sz \
759 (compound_decode_hdr_maxsz + \
760 decode_sequence_maxsz + \
761 decode_putfh_maxsz + \
762 decode_getfh_maxsz + \
763 decode_renew_maxsz)
Benny Halevy99fe60d2009-04-01 09:22:29 -0400764#if defined(CONFIG_NFS_V4_1)
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -0400765#define NFS4_enc_bind_conn_to_session_sz \
766 (compound_encode_hdr_maxsz + \
767 encode_bind_conn_to_session_maxsz)
768#define NFS4_dec_bind_conn_to_session_sz \
769 (compound_decode_hdr_maxsz + \
770 decode_bind_conn_to_session_maxsz)
Benny Halevy99fe60d2009-04-01 09:22:29 -0400771#define NFS4_enc_exchange_id_sz \
772 (compound_encode_hdr_maxsz + \
773 encode_exchange_id_maxsz)
774#define NFS4_dec_exchange_id_sz \
775 (compound_decode_hdr_maxsz + \
776 decode_exchange_id_maxsz)
Andy Adamsonfc931582009-04-01 09:22:31 -0400777#define NFS4_enc_create_session_sz \
778 (compound_encode_hdr_maxsz + \
779 encode_create_session_maxsz)
780#define NFS4_dec_create_session_sz \
781 (compound_decode_hdr_maxsz + \
782 decode_create_session_maxsz)
Andy Adamson0f3e66c2009-04-01 09:22:34 -0400783#define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
784 encode_destroy_session_maxsz)
785#define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
786 decode_destroy_session_maxsz)
Trond Myklebust66245532012-05-25 17:18:09 -0400787#define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \
788 encode_destroy_clientid_maxsz)
789#define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \
790 decode_destroy_clientid_maxsz)
Andy Adamsonfc01cea2009-04-01 09:22:36 -0400791#define NFS4_enc_sequence_sz \
792 (compound_decode_hdr_maxsz + \
793 encode_sequence_maxsz)
794#define NFS4_dec_sequence_sz \
795 (compound_decode_hdr_maxsz + \
796 decode_sequence_maxsz)
Andy Adamson2050f0c2009-04-01 09:22:30 -0400797#define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
798 encode_sequence_maxsz + \
799 encode_putrootfh_maxsz + \
800 encode_fsinfo_maxsz)
801#define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
802 decode_sequence_maxsz + \
803 decode_putrootfh_maxsz + \
804 decode_fsinfo_maxsz)
Ricardo Labiaga180197532009-12-05 16:08:40 -0500805#define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
806 encode_sequence_maxsz + \
807 encode_reclaim_complete_maxsz)
808#define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
809 decode_sequence_maxsz + \
810 decode_reclaim_complete_maxsz)
Andy Adamsonb1f69b72010-10-20 00:18:03 -0400811#define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \
812 encode_sequence_maxsz +\
813 encode_getdeviceinfo_maxsz)
814#define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \
815 decode_sequence_maxsz + \
816 decode_getdeviceinfo_maxsz)
817#define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \
818 encode_sequence_maxsz + \
819 encode_putfh_maxsz + \
820 encode_layoutget_maxsz)
821#define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \
822 decode_sequence_maxsz + \
823 decode_putfh_maxsz + \
824 decode_layoutget_maxsz)
Andy Adamson863a3c62011-03-23 13:27:54 +0000825#define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \
826 encode_sequence_maxsz +\
827 encode_putfh_maxsz + \
828 encode_layoutcommit_maxsz + \
829 encode_getattr_maxsz)
830#define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \
831 decode_sequence_maxsz + \
832 decode_putfh_maxsz + \
833 decode_layoutcommit_maxsz + \
834 decode_getattr_maxsz)
Benny Halevycbe82602011-05-22 19:52:37 +0300835#define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \
836 encode_sequence_maxsz + \
837 encode_putfh_maxsz + \
838 encode_layoutreturn_maxsz)
839#define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \
840 decode_sequence_maxsz + \
841 decode_putfh_maxsz + \
842 decode_layoutreturn_maxsz)
Bryan Schumakerfca78d62011-06-02 14:59:07 -0400843#define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \
844 encode_sequence_maxsz + \
845 encode_putrootfh_maxsz +\
846 encode_secinfo_no_name_maxsz)
847#define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \
848 decode_sequence_maxsz + \
849 decode_putrootfh_maxsz + \
850 decode_secinfo_no_name_maxsz)
Bryan Schumaker7d974792011-06-02 14:59:08 -0400851#define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \
852 encode_sequence_maxsz + \
853 encode_test_stateid_maxsz)
854#define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \
855 decode_sequence_maxsz + \
856 decode_test_stateid_maxsz)
Bryan Schumaker9aeda352011-06-02 14:59:09 -0400857#define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \
858 encode_sequence_maxsz + \
859 encode_free_stateid_maxsz)
860#define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \
861 decode_sequence_maxsz + \
862 decode_free_stateid_maxsz)
Alexandros Batsakis2449ea22009-12-05 13:36:55 -0500863
864const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
865 compound_encode_hdr_maxsz +
866 encode_sequence_maxsz +
867 encode_putfh_maxsz +
868 encode_getattr_maxsz) *
869 XDR_UNIT);
870
871const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
872 compound_decode_hdr_maxsz +
873 decode_sequence_maxsz +
874 decode_putfh_maxsz) *
875 XDR_UNIT);
Andy Adamsonf1c097b2013-06-25 19:02:53 -0400876
877const u32 nfs41_maxgetdevinfo_overhead = ((RPC_MAX_REPHEADER_WITH_AUTH +
878 compound_decode_hdr_maxsz +
879 decode_sequence_maxsz) *
880 XDR_UNIT);
881EXPORT_SYMBOL_GPL(nfs41_maxgetdevinfo_overhead);
Benny Halevy99fe60d2009-04-01 09:22:29 -0400882#endif /* CONFIG_NFS_V4_1 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883
Trond Myklebustbca79472009-03-11 14:10:26 -0400884static const umode_t nfs_type2fmt[] = {
885 [NF4BAD] = 0,
886 [NF4REG] = S_IFREG,
887 [NF4DIR] = S_IFDIR,
888 [NF4BLK] = S_IFBLK,
889 [NF4CHR] = S_IFCHR,
890 [NF4LNK] = S_IFLNK,
891 [NF4SOCK] = S_IFSOCK,
892 [NF4FIFO] = S_IFIFO,
893 [NF4ATTRDIR] = 0,
894 [NF4NAMEDATTR] = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700895};
896
897struct compound_hdr {
898 int32_t status;
899 uint32_t nops;
Andy Adamsond0179312008-12-23 16:06:17 -0500900 __be32 * nops_p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700901 uint32_t taglen;
902 char * tag;
Benny Halevy0c4e8c12009-04-01 09:22:07 -0400903 uint32_t replen; /* expected reply words */
Benny Halevy66cc0422009-04-01 09:22:10 -0400904 u32 minorversion;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700905};
906
Benny Halevy13c65ce2009-08-14 17:19:25 +0300907static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes)
908{
909 __be32 *p = xdr_reserve_space(xdr, nbytes);
910 BUG_ON(!p);
911 return p;
912}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913
Trond Myklebustcb17e552012-03-04 18:13:56 -0500914static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len)
915{
916 __be32 *p;
917
918 p = xdr_reserve_space(xdr, len);
919 xdr_encode_opaque_fixed(p, buf, len);
920}
921
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
923{
Al Viro8687b632006-10-19 23:28:48 -0700924 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925
Trond Myklebust6fdfb0bc2012-03-04 18:13:57 -0500926 p = reserve_space(xdr, 4 + len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700927 xdr_encode_opaque(p, str, len);
928}
929
Trond Myklebust4ade9822012-03-04 18:13:57 -0500930static void encode_uint32(struct xdr_stream *xdr, u32 n)
931{
932 __be32 *p;
933
934 p = reserve_space(xdr, 4);
935 *p = cpu_to_be32(n);
936}
937
Trond Myklebustff2eb682012-03-05 11:40:12 -0500938static void encode_uint64(struct xdr_stream *xdr, u64 n)
939{
940 __be32 *p;
941
942 p = reserve_space(xdr, 8);
943 xdr_encode_hyper(p, n);
944}
945
Trond Myklebust4ade9822012-03-04 18:13:57 -0500946static void encode_nfs4_seqid(struct xdr_stream *xdr,
947 const struct nfs_seqid *seqid)
948{
Trond Myklebusta6796412015-01-23 19:04:44 -0500949 if (seqid != NULL)
950 encode_uint32(xdr, seqid->sequence->counter);
951 else
952 encode_uint32(xdr, 0);
Trond Myklebust4ade9822012-03-04 18:13:57 -0500953}
954
Benny Halevy0c4e8c12009-04-01 09:22:07 -0400955static void encode_compound_hdr(struct xdr_stream *xdr,
956 struct rpc_rqst *req,
957 struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958{
Al Viro8687b632006-10-19 23:28:48 -0700959 __be32 *p;
Trond Myklebusta17c2152010-07-31 14:29:08 -0400960 struct rpc_auth *auth = req->rq_cred->cr_auth;
Benny Halevy0c4e8c12009-04-01 09:22:07 -0400961
962 /* initialize running count of expected bytes in reply.
963 * NOTE: the replied tag SHOULD be the same is the one sent,
964 * but this is not required as a MUST for the server to do so. */
965 hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700966
Trond Myklebust7fc38842012-10-15 11:51:21 -0400967 WARN_ON_ONCE(hdr->taglen > NFS4_MAXTAGLEN);
Trond Myklebust6fdfb0bc2012-03-04 18:13:57 -0500968 encode_string(xdr, hdr->taglen, hdr->tag);
969 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +0300970 *p++ = cpu_to_be32(hdr->minorversion);
Andy Adamsond0179312008-12-23 16:06:17 -0500971 hdr->nops_p = p;
Benny Halevy34558512009-08-14 17:19:30 +0300972 *p = cpu_to_be32(hdr->nops);
Andy Adamsond0179312008-12-23 16:06:17 -0500973}
974
Trond Myklebustab19b482012-03-04 18:13:57 -0500975static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op,
976 uint32_t replen,
977 struct compound_hdr *hdr)
978{
979 encode_uint32(xdr, op);
980 hdr->nops++;
981 hdr->replen += replen;
982}
983
Andy Adamsond0179312008-12-23 16:06:17 -0500984static void encode_nops(struct compound_hdr *hdr)
985{
Trond Myklebust7fc38842012-10-15 11:51:21 -0400986 WARN_ON_ONCE(hdr->nops > NFS4_MAX_OPS);
Andy Adamsond0179312008-12-23 16:06:17 -0500987 *hdr->nops_p = htonl(hdr->nops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700988}
989
Trond Myklebustea9d23f2012-03-04 18:13:56 -0500990static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid)
991{
Trond Myklebust2d2f24a2012-03-04 18:13:57 -0500992 encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE);
Trond Myklebustea9d23f2012-03-04 18:13:56 -0500993}
994
Linus Torvalds1da177e2005-04-16 15:20:36 -0700995static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
996{
Trond Myklebustcb17e552012-03-04 18:13:56 -0500997 encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700998}
999
David Quigleyaa9c2662013-05-22 12:50:44 -04001000static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap,
1001 const struct nfs4_label *label,
1002 const struct nfs_server *server)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003{
1004 char owner_name[IDMAP_NAMESZ];
1005 char owner_group[IDMAP_NAMESZ];
1006 int owner_namelen = 0;
1007 int owner_grouplen = 0;
Al Viro8687b632006-10-19 23:28:48 -07001008 __be32 *p;
Trond Myklebustd7067b22013-07-17 17:09:01 -04001009 unsigned i;
1010 uint32_t len = 0;
1011 uint32_t bmval_len;
1012 uint32_t bmval[3] = { 0 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001013
1014 /*
1015 * We reserve enough space to write the entire attribute buffer at once.
1016 * In the worst-case, this would be
David Quigleya09df2c2013-05-22 12:50:41 -04001017 * 16(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
1018 * = 40 bytes, plus any contribution from variable-length fields
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001019 * such as owner/group.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001020 */
Trond Myklebustd7067b22013-07-17 17:09:01 -04001021 if (iap->ia_valid & ATTR_SIZE) {
1022 bmval[0] |= FATTR4_WORD0_SIZE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001023 len += 8;
Trond Myklebustd7067b22013-07-17 17:09:01 -04001024 }
1025 if (iap->ia_valid & ATTR_MODE) {
1026 bmval[1] |= FATTR4_WORD1_MODE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027 len += 4;
Trond Myklebustd7067b22013-07-17 17:09:01 -04001028 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001029 if (iap->ia_valid & ATTR_UID) {
Trond Myklebuste4fd72a2011-02-22 15:44:31 -08001030 owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031 if (owner_namelen < 0) {
Chuck Leverfe82a182007-09-11 18:01:10 -04001032 dprintk("nfs: couldn't resolve uid %d to string\n",
Eric W. Biedermane5782072013-02-01 14:22:02 -08001033 from_kuid(&init_user_ns, iap->ia_uid));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034 /* XXX */
1035 strcpy(owner_name, "nobody");
1036 owner_namelen = sizeof("nobody") - 1;
1037 /* goto out; */
1038 }
Trond Myklebustd7067b22013-07-17 17:09:01 -04001039 bmval[1] |= FATTR4_WORD1_OWNER;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040 len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
1041 }
1042 if (iap->ia_valid & ATTR_GID) {
Trond Myklebuste4fd72a2011-02-22 15:44:31 -08001043 owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001044 if (owner_grouplen < 0) {
Chuck Leverfe82a182007-09-11 18:01:10 -04001045 dprintk("nfs: couldn't resolve gid %d to string\n",
Eric W. Biedermane5782072013-02-01 14:22:02 -08001046 from_kgid(&init_user_ns, iap->ia_gid));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047 strcpy(owner_group, "nobody");
1048 owner_grouplen = sizeof("nobody") - 1;
1049 /* goto out; */
1050 }
Trond Myklebustd7067b22013-07-17 17:09:01 -04001051 bmval[1] |= FATTR4_WORD1_OWNER_GROUP;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001052 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
1053 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001054 if (iap->ia_valid & ATTR_ATIME_SET) {
Trond Myklebustd7067b22013-07-17 17:09:01 -04001055 bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET;
1056 len += 16;
1057 } else if (iap->ia_valid & ATTR_ATIME) {
1058 bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET;
1059 len += 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001060 }
1061 if (iap->ia_valid & ATTR_MTIME_SET) {
Trond Myklebustd7067b22013-07-17 17:09:01 -04001062 bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET;
1063 len += 16;
1064 } else if (iap->ia_valid & ATTR_MTIME) {
1065 bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET;
1066 len += 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067 }
David Quigleyaa9c2662013-05-22 12:50:44 -04001068 if (label) {
Trond Myklebustd7067b22013-07-17 17:09:01 -04001069 len += 4 + 4 + 4 + (XDR_QUADLEN(label->len) << 2);
1070 bmval[2] |= FATTR4_WORD2_SECURITY_LABEL;
1071 }
1072
1073 if (bmval[2] != 0)
1074 bmval_len = 3;
1075 else if (bmval[1] != 0)
1076 bmval_len = 2;
1077 else
1078 bmval_len = 1;
1079
1080 p = reserve_space(xdr, 4 + (bmval_len << 2) + 4 + len);
1081
1082 *p++ = cpu_to_be32(bmval_len);
1083 for (i = 0; i < bmval_len; i++)
1084 *p++ = cpu_to_be32(bmval[i]);
1085 *p++ = cpu_to_be32(len);
1086
1087 if (bmval[0] & FATTR4_WORD0_SIZE)
1088 p = xdr_encode_hyper(p, iap->ia_size);
1089 if (bmval[1] & FATTR4_WORD1_MODE)
1090 *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
1091 if (bmval[1] & FATTR4_WORD1_OWNER)
1092 p = xdr_encode_opaque(p, owner_name, owner_namelen);
1093 if (bmval[1] & FATTR4_WORD1_OWNER_GROUP)
1094 p = xdr_encode_opaque(p, owner_group, owner_grouplen);
1095 if (bmval[1] & FATTR4_WORD1_TIME_ACCESS_SET) {
1096 if (iap->ia_valid & ATTR_ATIME_SET) {
1097 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
1098 p = xdr_encode_hyper(p, (s64)iap->ia_atime.tv_sec);
1099 *p++ = cpu_to_be32(iap->ia_atime.tv_nsec);
1100 } else
1101 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
1102 }
1103 if (bmval[1] & FATTR4_WORD1_TIME_MODIFY_SET) {
1104 if (iap->ia_valid & ATTR_MTIME_SET) {
1105 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
1106 p = xdr_encode_hyper(p, (s64)iap->ia_mtime.tv_sec);
1107 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
1108 } else
1109 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
1110 }
1111 if (bmval[2] & FATTR4_WORD2_SECURITY_LABEL) {
David Quigleyaa9c2662013-05-22 12:50:44 -04001112 *p++ = cpu_to_be32(label->lfs);
1113 *p++ = cpu_to_be32(label->pi);
1114 *p++ = cpu_to_be32(label->len);
1115 p = xdr_encode_opaque_fixed(p, label->label, label->len);
1116 }
Andy Adamson6c0195a2008-12-23 16:06:15 -05001117
Linus Torvalds1da177e2005-04-16 15:20:36 -07001118/* out: */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119}
1120
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001121static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001122{
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001123 encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr);
1124 encode_uint32(xdr, access);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001125}
1126
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001127static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001128{
Trond Myklebustab19b482012-03-04 18:13:57 -05001129 encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr);
Trond Myklebust4ade9822012-03-04 18:13:57 -05001130 encode_nfs4_seqid(xdr, arg->seqid);
Trond Myklebust566fcec2015-01-23 15:32:46 -05001131 encode_nfs4_stateid(xdr, &arg->stateid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132}
1133
Fred Isaman0b7c0152012-04-20 14:47:39 -04001134static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001135{
Al Viro8687b632006-10-19 23:28:48 -07001136 __be32 *p;
Andy Adamson6c0195a2008-12-23 16:06:15 -05001137
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001138 encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr);
1139 p = reserve_space(xdr, 12);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001140 p = xdr_encode_hyper(p, args->offset);
Benny Halevy34558512009-08-14 17:19:30 +03001141 *p = cpu_to_be32(args->count);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001142}
1143
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001144static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001145{
Al Viro8687b632006-10-19 23:28:48 -07001146 __be32 *p;
Andy Adamson6c0195a2008-12-23 16:06:15 -05001147
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001148 encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr);
1149 encode_uint32(xdr, create->ftype);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001150
1151 switch (create->ftype) {
1152 case NF4LNK:
Benny Halevy13c65ce2009-08-14 17:19:25 +03001153 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001154 *p = cpu_to_be32(create->u.symlink.len);
Chuck Lever94a6d752006-08-22 20:06:23 -04001155 xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001156 break;
1157
1158 case NF4BLK: case NF4CHR:
Benny Halevy13c65ce2009-08-14 17:19:25 +03001159 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001160 *p++ = cpu_to_be32(create->u.device.specdata1);
Benny Halevy34558512009-08-14 17:19:30 +03001161 *p = cpu_to_be32(create->u.device.specdata2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001162 break;
1163
1164 default:
1165 break;
1166 }
1167
Benny Halevy811652b2009-08-14 17:19:34 +03001168 encode_string(xdr, create->name->len, create->name->name);
David Quigleyaa9c2662013-05-22 12:50:44 -04001169 encode_attrs(xdr, create->attrs, create->label, create->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001170}
1171
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001172static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001173{
Andy Adamson05d564f2008-12-23 16:06:15 -05001174 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001175
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001176 encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
1177 p = reserve_space(xdr, 8);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001178 *p++ = cpu_to_be32(1);
Benny Halevy34558512009-08-14 17:19:30 +03001179 *p = cpu_to_be32(bitmap);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001180}
1181
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001182static 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 -07001183{
Andy Adamson05d564f2008-12-23 16:06:15 -05001184 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001186 encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
1187 p = reserve_space(xdr, 12);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001188 *p++ = cpu_to_be32(2);
1189 *p++ = cpu_to_be32(bm0);
Benny Halevy34558512009-08-14 17:19:30 +03001190 *p = cpu_to_be32(bm1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001191}
1192
Fred Isamandae100c2011-07-30 20:52:37 -04001193static void
1194encode_getattr_three(struct xdr_stream *xdr,
1195 uint32_t bm0, uint32_t bm1, uint32_t bm2,
1196 struct compound_hdr *hdr)
1197{
1198 __be32 *p;
1199
Trond Myklebustab19b482012-03-04 18:13:57 -05001200 encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
Fred Isamandae100c2011-07-30 20:52:37 -04001201 if (bm2) {
1202 p = reserve_space(xdr, 16);
1203 *p++ = cpu_to_be32(3);
1204 *p++ = cpu_to_be32(bm0);
1205 *p++ = cpu_to_be32(bm1);
1206 *p = cpu_to_be32(bm2);
1207 } else if (bm1) {
1208 p = reserve_space(xdr, 12);
1209 *p++ = cpu_to_be32(2);
1210 *p++ = cpu_to_be32(bm0);
1211 *p = cpu_to_be32(bm1);
1212 } else {
1213 p = reserve_space(xdr, 8);
1214 *p++ = cpu_to_be32(1);
1215 *p = cpu_to_be32(bm0);
1216 }
Fred Isamandae100c2011-07-30 20:52:37 -04001217}
1218
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001219static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001220{
David Quigleya09df2c2013-05-22 12:50:41 -04001221 encode_getattr_three(xdr, bitmask[0] & nfs4_fattr_bitmap[0],
1222 bitmask[1] & nfs4_fattr_bitmap[1],
1223 bitmask[2] & nfs4_fattr_bitmap[2],
1224 hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001225}
1226
Andy Adamson88034c32012-05-23 05:02:34 -04001227static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask,
Trond Myklebust1549210f2012-06-05 09:16:47 -04001228 const u32 *open_bitmap,
Andy Adamson88034c32012-05-23 05:02:34 -04001229 struct compound_hdr *hdr)
1230{
1231 encode_getattr_three(xdr,
Trond Myklebust1549210f2012-06-05 09:16:47 -04001232 bitmask[0] & open_bitmap[0],
1233 bitmask[1] & open_bitmap[1],
1234 bitmask[2] & open_bitmap[2],
Andy Adamson88034c32012-05-23 05:02:34 -04001235 hdr);
1236}
1237
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001238static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001239{
Fred Isamandae100c2011-07-30 20:52:37 -04001240 encode_getattr_three(xdr,
1241 bitmask[0] & nfs4_fsinfo_bitmap[0],
1242 bitmask[1] & nfs4_fsinfo_bitmap[1],
1243 bitmask[2] & nfs4_fsinfo_bitmap[2],
1244 hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001245}
1246
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001247static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
Manoj Naik830b8e32006-06-09 09:34:25 -04001248{
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001249 encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0],
1250 bitmask[1] & nfs4_fs_locations_bitmap[1], hdr);
Manoj Naik830b8e32006-06-09 09:34:25 -04001251}
1252
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001253static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001254{
Trond Myklebustab19b482012-03-04 18:13:57 -05001255 encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001256}
1257
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001258static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259{
Trond Myklebustab19b482012-03-04 18:13:57 -05001260 encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr);
Trond Myklebust6fdfb0bc2012-03-04 18:13:57 -05001261 encode_string(xdr, name->len, name->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001262}
1263
Trond Myklebust911d1aa2006-01-03 09:55:16 +01001264static inline int nfs4_lock_type(struct file_lock *fl, int block)
1265{
Jeff Laytonf44106e2012-07-23 15:49:56 -04001266 if (fl->fl_type == F_RDLCK)
Trond Myklebust911d1aa2006-01-03 09:55:16 +01001267 return block ? NFS4_READW_LT : NFS4_READ_LT;
1268 return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT;
1269}
1270
1271static inline uint64_t nfs4_lock_length(struct file_lock *fl)
1272{
1273 if (fl->fl_end == OFFSET_MAX)
1274 return ~(uint64_t)0;
1275 return fl->fl_end - fl->fl_start + 1;
1276}
1277
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001278static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner)
1279{
1280 __be32 *p;
1281
Trond Myklebustd035c362010-12-21 10:45:27 -05001282 p = reserve_space(xdr, 32);
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001283 p = xdr_encode_hyper(p, lowner->clientid);
Trond Myklebustd035c362010-12-21 10:45:27 -05001284 *p++ = cpu_to_be32(20);
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001285 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
Trond Myklebustd035c362010-12-21 10:45:27 -05001286 *p++ = cpu_to_be32(lowner->s_dev);
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001287 xdr_encode_hyper(p, lowner->id);
1288}
1289
Linus Torvalds1da177e2005-04-16 15:20:36 -07001290/*
1291 * opcode,type,reclaim,offset,length,new_lock_owner = 32
1292 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
1293 */
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001294static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001295{
Al Viro8687b632006-10-19 23:28:48 -07001296 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001297
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001298 encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr);
1299 p = reserve_space(xdr, 28);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001300 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block));
1301 *p++ = cpu_to_be32(args->reclaim);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001302 p = xdr_encode_hyper(p, args->fl->fl_start);
1303 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
Benny Halevy34558512009-08-14 17:19:30 +03001304 *p = cpu_to_be32(args->new_lock_owner);
Trond Myklebust911d1aa2006-01-03 09:55:16 +01001305 if (args->new_lock_owner){
Trond Myklebust4ade9822012-03-04 18:13:57 -05001306 encode_nfs4_seqid(xdr, args->open_seqid);
Trond Myklebust425c1d42015-01-24 14:57:53 -05001307 encode_nfs4_stateid(xdr, &args->open_stateid);
Trond Myklebust4ade9822012-03-04 18:13:57 -05001308 encode_nfs4_seqid(xdr, args->lock_seqid);
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001309 encode_lockowner(xdr, &args->lock_owner);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001310 }
1311 else {
Trond Myklebust425c1d42015-01-24 14:57:53 -05001312 encode_nfs4_stateid(xdr, &args->lock_stateid);
Trond Myklebust4ade9822012-03-04 18:13:57 -05001313 encode_nfs4_seqid(xdr, args->lock_seqid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001314 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001315}
1316
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001317static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001318{
Al Viro8687b632006-10-19 23:28:48 -07001319 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001320
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001321 encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr);
1322 p = reserve_space(xdr, 20);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001323 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
Benny Halevyb95be5a2009-08-14 17:19:01 +03001324 p = xdr_encode_hyper(p, args->fl->fl_start);
1325 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
Trond Myklebustdaccbde2010-06-25 18:11:43 -04001326 encode_lockowner(xdr, &args->lock_owner);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001327}
1328
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001329static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330{
Al Viro8687b632006-10-19 23:28:48 -07001331 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001332
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001333 encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr);
1334 encode_uint32(xdr, nfs4_lock_type(args->fl, 0));
Trond Myklebust4ade9822012-03-04 18:13:57 -05001335 encode_nfs4_seqid(xdr, args->seqid);
Trond Myklebust425c1d42015-01-24 14:57:53 -05001336 encode_nfs4_stateid(xdr, &args->stateid);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001337 p = reserve_space(xdr, 16);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001338 p = xdr_encode_hyper(p, args->fl->fl_start);
Benny Halevy34558512009-08-14 17:19:30 +03001339 xdr_encode_hyper(p, nfs4_lock_length(args->fl));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001340}
1341
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04001342static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr)
1343{
Trond Myklebustab19b482012-03-04 18:13:57 -05001344 encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04001345 encode_lockowner(xdr, lowner);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04001346}
1347
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001348static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001349{
Trond Myklebustab19b482012-03-04 18:13:57 -05001350 encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr);
Trond Myklebust6fdfb0bc2012-03-04 18:13:57 -05001351 encode_string(xdr, name->len, name->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001352}
1353
Trond Myklebust6ae37332015-01-30 14:21:14 -05001354static void encode_share_access(struct xdr_stream *xdr, u32 share_access)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355{
Al Viro8687b632006-10-19 23:28:48 -07001356 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001357
Benny Halevy13c65ce2009-08-14 17:19:25 +03001358 p = reserve_space(xdr, 8);
Trond Myklebust6ae37332015-01-30 14:21:14 -05001359 *p++ = cpu_to_be32(share_access);
Benny Halevy34558512009-08-14 17:19:30 +03001360 *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361}
1362
1363static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1364{
Al Viro8687b632006-10-19 23:28:48 -07001365 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001366 /*
1367 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1368 * owner 4 = 32
1369 */
Trond Myklebust4ade9822012-03-04 18:13:57 -05001370 encode_nfs4_seqid(xdr, arg->seqid);
Trond Myklebust6ae37332015-01-30 14:21:14 -05001371 encode_share_access(xdr, arg->share_access);
Trond Myklebust95b72eb2012-04-20 19:24:51 -04001372 p = reserve_space(xdr, 36);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001373 p = xdr_encode_hyper(p, arg->clientid);
Trond Myklebust95b72eb2012-04-20 19:24:51 -04001374 *p++ = cpu_to_be32(24);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001375 p = xdr_encode_opaque_fixed(p, "open id:", 8);
Trond Myklebustd035c362010-12-21 10:45:27 -05001376 *p++ = cpu_to_be32(arg->server->s_dev);
Trond Myklebust95b72eb2012-04-20 19:24:51 -04001377 *p++ = cpu_to_be32(arg->id.uniquifier);
1378 xdr_encode_hyper(p, arg->id.create_time);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379}
1380
1381static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1382{
Trond Myklebust549b19c2013-04-16 18:42:34 -04001383 struct iattr dummy;
Al Viro8687b632006-10-19 23:28:48 -07001384 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001385
Benny Halevy13c65ce2009-08-14 17:19:25 +03001386 p = reserve_space(xdr, 4);
Trond Myklebust549b19c2013-04-16 18:42:34 -04001387 switch(arg->createmode) {
1388 case NFS4_CREATE_UNCHECKED:
Benny Halevy34558512009-08-14 17:19:30 +03001389 *p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
David Quigleyaa9c2662013-05-22 12:50:44 -04001390 encode_attrs(xdr, arg->u.attrs, arg->label, arg->server);
Andy Adamson05d564f2008-12-23 16:06:15 -05001391 break;
Trond Myklebust549b19c2013-04-16 18:42:34 -04001392 case NFS4_CREATE_GUARDED:
1393 *p = cpu_to_be32(NFS4_CREATE_GUARDED);
David Quigleyaa9c2662013-05-22 12:50:44 -04001394 encode_attrs(xdr, arg->u.attrs, arg->label, arg->server);
Trond Myklebust549b19c2013-04-16 18:42:34 -04001395 break;
1396 case NFS4_CREATE_EXCLUSIVE:
1397 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
1398 encode_nfs4_verifier(xdr, &arg->u.verifier);
1399 break;
1400 case NFS4_CREATE_EXCLUSIVE4_1:
1401 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1);
1402 encode_nfs4_verifier(xdr, &arg->u.verifier);
1403 dummy.ia_valid = 0;
David Quigleyaa9c2662013-05-22 12:50:44 -04001404 encode_attrs(xdr, &dummy, arg->label, arg->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001405 }
1406}
1407
1408static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1409{
Al Viro8687b632006-10-19 23:28:48 -07001410 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411
Benny Halevy13c65ce2009-08-14 17:19:25 +03001412 p = reserve_space(xdr, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001413 switch (arg->open_flags & O_CREAT) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001414 case 0:
Benny Halevy34558512009-08-14 17:19:30 +03001415 *p = cpu_to_be32(NFS4_OPEN_NOCREATE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001416 break;
1417 default:
Benny Halevy34558512009-08-14 17:19:30 +03001418 *p = cpu_to_be32(NFS4_OPEN_CREATE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001419 encode_createmode(xdr, arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001420 }
1421}
1422
Trond Myklebustbd7bf9d2008-12-23 15:21:53 -05001423static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001424{
Al Viro8687b632006-10-19 23:28:48 -07001425 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001426
Benny Halevy13c65ce2009-08-14 17:19:25 +03001427 p = reserve_space(xdr, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001428 switch (delegation_type) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001429 case 0:
Benny Halevy34558512009-08-14 17:19:30 +03001430 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001431 break;
1432 case FMODE_READ:
Benny Halevy34558512009-08-14 17:19:30 +03001433 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ);
Andy Adamson05d564f2008-12-23 16:06:15 -05001434 break;
1435 case FMODE_WRITE|FMODE_READ:
Benny Halevy34558512009-08-14 17:19:30 +03001436 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE);
Andy Adamson05d564f2008-12-23 16:06:15 -05001437 break;
1438 default:
1439 BUG();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001440 }
1441}
1442
1443static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
1444{
Al Viro8687b632006-10-19 23:28:48 -07001445 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001446
Benny Halevy13c65ce2009-08-14 17:19:25 +03001447 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001448 *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001449 encode_string(xdr, name->len, name->name);
1450}
1451
Trond Myklebustbd7bf9d2008-12-23 15:21:53 -05001452static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453{
Al Viro8687b632006-10-19 23:28:48 -07001454 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001455
Benny Halevy13c65ce2009-08-14 17:19:25 +03001456 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001457 *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001458 encode_delegation_type(xdr, type);
1459}
1460
1461static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
1462{
Al Viro8687b632006-10-19 23:28:48 -07001463 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001464
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001465 p = reserve_space(xdr, 4);
1466 *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
1467 encode_nfs4_stateid(xdr, stateid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001468 encode_string(xdr, name->len, name->name);
1469}
1470
Trond Myklebustd9fc6612013-03-15 15:39:06 -04001471static inline void encode_claim_fh(struct xdr_stream *xdr)
1472{
1473 __be32 *p;
1474
1475 p = reserve_space(xdr, 4);
1476 *p = cpu_to_be32(NFS4_OPEN_CLAIM_FH);
1477}
1478
1479static inline void encode_claim_delegate_cur_fh(struct xdr_stream *xdr, const nfs4_stateid *stateid)
1480{
1481 __be32 *p;
1482
1483 p = reserve_space(xdr, 4);
1484 *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEG_CUR_FH);
1485 encode_nfs4_stateid(xdr, stateid);
1486}
1487
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001488static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001489{
Trond Myklebustab19b482012-03-04 18:13:57 -05001490 encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001491 encode_openhdr(xdr, arg);
1492 encode_opentype(xdr, arg);
1493 switch (arg->claim) {
Andy Adamson05d564f2008-12-23 16:06:15 -05001494 case NFS4_OPEN_CLAIM_NULL:
1495 encode_claim_null(xdr, arg->name);
1496 break;
1497 case NFS4_OPEN_CLAIM_PREVIOUS:
1498 encode_claim_previous(xdr, arg->u.delegation_type);
1499 break;
1500 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
1501 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
1502 break;
Trond Myklebustd9fc6612013-03-15 15:39:06 -04001503 case NFS4_OPEN_CLAIM_FH:
1504 encode_claim_fh(xdr);
1505 break;
1506 case NFS4_OPEN_CLAIM_DELEG_CUR_FH:
1507 encode_claim_delegate_cur_fh(xdr, &arg->u.delegation);
1508 break;
Andy Adamson05d564f2008-12-23 16:06:15 -05001509 default:
1510 BUG();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001511 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001512}
1513
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001514static 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 -07001515{
Trond Myklebustab19b482012-03-04 18:13:57 -05001516 encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001517 encode_nfs4_stateid(xdr, arg->stateid);
Trond Myklebust4ade9822012-03-04 18:13:57 -05001518 encode_nfs4_seqid(xdr, arg->seqid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001519}
1520
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001521static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001522{
Trond Myklebustab19b482012-03-04 18:13:57 -05001523 encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr);
Trond Myklebust566fcec2015-01-23 15:32:46 -05001524 encode_nfs4_stateid(xdr, &arg->stateid);
Trond Myklebust4ade9822012-03-04 18:13:57 -05001525 encode_nfs4_seqid(xdr, arg->seqid);
Trond Myklebust6ae37332015-01-30 14:21:14 -05001526 encode_share_access(xdr, arg->share_access);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001527}
1528
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001529static void
Andy Adamsond0179312008-12-23 16:06:17 -05001530encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001531{
Trond Myklebustab19b482012-03-04 18:13:57 -05001532 encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr);
Trond Myklebust6fdfb0bc2012-03-04 18:13:57 -05001533 encode_string(xdr, fh->size, fh->data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001534}
1535
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001536static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001537{
Trond Myklebustab19b482012-03-04 18:13:57 -05001538 encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001539}
1540
Anna Schumaker3c6b8992014-05-06 09:12:24 -04001541static void encode_read(struct xdr_stream *xdr, const struct nfs_pgio_args *args,
1542 struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001543{
Al Viro8687b632006-10-19 23:28:48 -07001544 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001545
Trond Myklebustab19b482012-03-04 18:13:57 -05001546 encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr);
Trond Myklebust9b206142013-03-17 15:52:00 -04001547 encode_nfs4_stateid(xdr, &args->stateid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001548
Benny Halevy13c65ce2009-08-14 17:19:25 +03001549 p = reserve_space(xdr, 12);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001550 p = xdr_encode_hyper(p, args->offset);
Benny Halevy34558512009-08-14 17:19:30 +03001551 *p = cpu_to_be32(args->count);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001552}
1553
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001554static 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 -07001555{
David Quigleyaa9c2662013-05-22 12:50:44 -04001556 uint32_t attrs[3] = {
Trond Myklebust28331a42011-04-27 13:47:52 -04001557 FATTR4_WORD0_RDATTR_ERROR,
1558 FATTR4_WORD1_MOUNTED_ON_FILEID,
1559 };
Trond Myklebust6f7a35b2010-10-24 12:11:42 -04001560 uint32_t dircount = readdir->count >> 1;
Chuck Levercd937102012-03-02 17:14:31 -05001561 __be32 *p, verf[2];
Trond Myklebustd204c5d2013-11-04 13:23:59 -05001562 uint32_t attrlen = 0;
1563 unsigned int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001564
Bryan Schumaker82f2e542010-10-21 16:33:18 -04001565 if (readdir->plus) {
1566 attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE|
Trond Myklebust28331a42011-04-27 13:47:52 -04001567 FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID;
Bryan Schumaker82f2e542010-10-21 16:33:18 -04001568 attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER|
1569 FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV|
1570 FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS|
1571 FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
Trond Myklebustd204c5d2013-11-04 13:23:59 -05001572 attrs[2] |= FATTR4_WORD2_SECURITY_LABEL;
Trond Myklebust6f7a35b2010-10-24 12:11:42 -04001573 dircount >>= 1;
Bryan Schumaker82f2e542010-10-21 16:33:18 -04001574 }
Trond Myklebust28331a42011-04-27 13:47:52 -04001575 /* Use mounted_on_fileid only if the server supports it */
1576 if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID))
1577 attrs[0] |= FATTR4_WORD0_FILEID;
Trond Myklebustd204c5d2013-11-04 13:23:59 -05001578 for (i = 0; i < ARRAY_SIZE(attrs); i++) {
1579 attrs[i] &= readdir->bitmask[i];
1580 if (attrs[i] != 0)
1581 attrlen = i+1;
1582 }
Bryan Schumaker82f2e542010-10-21 16:33:18 -04001583
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001584 encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr);
Trond Myklebustff2eb682012-03-05 11:40:12 -05001585 encode_uint64(xdr, readdir->cookie);
Chuck Levercd937102012-03-02 17:14:31 -05001586 encode_nfs4_verifier(xdr, &readdir->verifier);
Trond Myklebustd204c5d2013-11-04 13:23:59 -05001587 p = reserve_space(xdr, 12 + (attrlen << 2));
Trond Myklebust6f7a35b2010-10-24 12:11:42 -04001588 *p++ = cpu_to_be32(dircount);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001589 *p++ = cpu_to_be32(readdir->count);
Trond Myklebustd204c5d2013-11-04 13:23:59 -05001590 *p++ = cpu_to_be32(attrlen);
1591 for (i = 0; i < attrlen; i++)
1592 *p++ = cpu_to_be32(attrs[i]);
Chuck Levercd937102012-03-02 17:14:31 -05001593 memcpy(verf, readdir->verifier.data, sizeof(verf));
David Quigleyaa9c2662013-05-22 12:50:44 -04001594
1595 dprintk("%s: cookie = %llu, verifier = %08x:%08x, bitmap = %08x:%08x:%08x\n",
Fred Isaman44109242008-04-02 15:21:15 +03001596 __func__,
Trond Myklebusteadf4592005-06-22 17:16:39 +00001597 (unsigned long long)readdir->cookie,
Chuck Levercd937102012-03-02 17:14:31 -05001598 verf[0], verf[1],
Trond Myklebusteadf4592005-06-22 17:16:39 +00001599 attrs[0] & readdir->bitmask[0],
David Quigleyaa9c2662013-05-22 12:50:44 -04001600 attrs[1] & readdir->bitmask[1],
1601 attrs[2] & readdir->bitmask[2]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001602}
1603
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001604static 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 -07001605{
Trond Myklebustab19b482012-03-04 18:13:57 -05001606 encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001607}
1608
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001609static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001610{
Trond Myklebustab19b482012-03-04 18:13:57 -05001611 encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr);
Trond Myklebust6fdfb0bc2012-03-04 18:13:57 -05001612 encode_string(xdr, name->len, name->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001613}
1614
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001615static 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 -07001616{
Trond Myklebustab19b482012-03-04 18:13:57 -05001617 encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr);
Benny Halevy811652b2009-08-14 17:19:34 +03001618 encode_string(xdr, oldname->len, oldname->name);
1619 encode_string(xdr, newname->len, newname->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001620}
1621
Chuck Leverbb4dae52012-03-01 17:01:48 -05001622static void encode_renew(struct xdr_stream *xdr, clientid4 clid,
1623 struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001624{
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001625 encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr);
Trond Myklebustff2eb682012-03-05 11:40:12 -05001626 encode_uint64(xdr, clid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001627}
1628
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001629static void
Andy Adamsond0179312008-12-23 16:06:17 -05001630encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Trond Myklebust56ae19f2005-10-27 22:12:40 -04001631{
Trond Myklebustab19b482012-03-04 18:13:57 -05001632 encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr);
Trond Myklebust56ae19f2005-10-27 22:12:40 -04001633}
1634
Chuck Lever9f06c712010-12-14 14:59:18 +00001635static void
Andy Adamsond0179312008-12-23 16:06:17 -05001636encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr)
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001637{
Al Viro8687b632006-10-19 23:28:48 -07001638 __be32 *p;
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001639
Trond Myklebustab19b482012-03-04 18:13:57 -05001640 encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001641 encode_nfs4_stateid(xdr, &zero_stateid);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001642 p = reserve_space(xdr, 2*4);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001643 *p++ = cpu_to_be32(1);
Benny Halevy34558512009-08-14 17:19:30 +03001644 *p = cpu_to_be32(FATTR4_WORD0_ACL);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001645 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001646 *p = cpu_to_be32(arg->acl_len);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001647 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00001648}
1649
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001650static void
Andy Adamsond0179312008-12-23 16:06:17 -05001651encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001652{
Trond Myklebustab19b482012-03-04 18:13:57 -05001653 encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001654}
1655
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001656static 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 -07001657{
Trond Myklebustab19b482012-03-04 18:13:57 -05001658 encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001659 encode_nfs4_stateid(xdr, &arg->stateid);
David Quigleyaa9c2662013-05-22 12:50:44 -04001660 encode_attrs(xdr, arg->iap, arg->label, server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001661}
1662
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001663static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001664{
Al Viro8687b632006-10-19 23:28:48 -07001665 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001666
Trond Myklebust70019512012-03-04 20:49:32 -05001667 encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr);
Chuck Levercd937102012-03-02 17:14:31 -05001668 encode_nfs4_verifier(xdr, setclientid->sc_verifier);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001669
1670 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001671 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001672 *p = cpu_to_be32(setclientid->sc_prog);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001673 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1674 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
Benny Halevy13c65ce2009-08-14 17:19:25 +03001675 p = reserve_space(xdr, 4);
Benny Halevy34558512009-08-14 17:19:30 +03001676 *p = cpu_to_be32(setclientid->sc_cb_ident);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001677}
1678
Trond Myklebustbb8b27e2010-04-16 16:43:06 -04001679static 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 -07001680{
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001681 encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM,
1682 decode_setclientid_confirm_maxsz, hdr);
Trond Myklebustff2eb682012-03-05 11:40:12 -05001683 encode_uint64(xdr, arg->clientid);
Chuck Levercd937102012-03-02 17:14:31 -05001684 encode_nfs4_verifier(xdr, &arg->confirm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001685}
1686
Anna Schumaker3c6b8992014-05-06 09:12:24 -04001687static void encode_write(struct xdr_stream *xdr, const struct nfs_pgio_args *args,
1688 struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001689{
Al Viro8687b632006-10-19 23:28:48 -07001690 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001691
Trond Myklebustab19b482012-03-04 18:13:57 -05001692 encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr);
Trond Myklebust9b206142013-03-17 15:52:00 -04001693 encode_nfs4_stateid(xdr, &args->stateid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001694
Benny Halevy13c65ce2009-08-14 17:19:25 +03001695 p = reserve_space(xdr, 16);
Benny Halevyb95be5a2009-08-14 17:19:01 +03001696 p = xdr_encode_hyper(p, args->offset);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001697 *p++ = cpu_to_be32(args->stable);
Benny Halevy34558512009-08-14 17:19:30 +03001698 *p = cpu_to_be32(args->count);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001699
1700 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001701}
1702
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05001703static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001704{
Trond Myklebustab19b482012-03-04 18:13:57 -05001705 encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001706 encode_nfs4_stateid(xdr, stateid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001707}
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001708
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00001709static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1710{
Trond Myklebustab19b482012-03-04 18:13:57 -05001711 encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr);
Trond Myklebust6fdfb0bc2012-03-04 18:13:57 -05001712 encode_string(xdr, name->len, name->name);
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00001713}
1714
Benny Halevy99fe60d2009-04-01 09:22:29 -04001715#if defined(CONFIG_NFS_V4_1)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001716/* NFSv4.1 operations */
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -04001717static void encode_bind_conn_to_session(struct xdr_stream *xdr,
Trond Myklebust71a097c2015-02-18 09:27:18 -08001718 struct nfs41_bind_conn_to_session_args *args,
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -04001719 struct compound_hdr *hdr)
1720{
1721 __be32 *p;
1722
1723 encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION,
1724 decode_bind_conn_to_session_maxsz, hdr);
Trond Myklebust71a097c2015-02-18 09:27:18 -08001725 encode_opaque_fixed(xdr, args->sessionid.data, NFS4_MAX_SESSIONID_LEN);
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -04001726 p = xdr_reserve_space(xdr, 8);
Trond Myklebust71a097c2015-02-18 09:27:18 -08001727 *p++ = cpu_to_be32(args->dir);
1728 *p = (args->use_conn_in_rdma_mode) ? cpu_to_be32(1) : cpu_to_be32(0);
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -04001729}
1730
Weston Andros Adamson2031cd12013-08-13 16:37:32 -04001731static void encode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map)
1732{
1733 unsigned int i;
1734 encode_uint32(xdr, NFS4_OP_MAP_NUM_WORDS);
1735 for (i = 0; i < NFS4_OP_MAP_NUM_WORDS; i++)
1736 encode_uint32(xdr, op_map->u.words[i]);
1737}
1738
Benny Halevy99fe60d2009-04-01 09:22:29 -04001739static void encode_exchange_id(struct xdr_stream *xdr,
1740 struct nfs41_exchange_id_args *args,
1741 struct compound_hdr *hdr)
1742{
1743 __be32 *p;
Jim Reesd751f742012-11-16 18:12:06 -05001744 char impl_name[IMPL_NAME_LIMIT];
Weston Andros Adamsondb8ac8b2012-02-17 15:20:24 -05001745 int len = 0;
Benny Halevy99fe60d2009-04-01 09:22:29 -04001746
Trond Myklebust70019512012-03-04 20:49:32 -05001747 encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr);
Chuck Levercd937102012-03-02 17:14:31 -05001748 encode_nfs4_verifier(xdr, args->verifier);
Benny Halevy99fe60d2009-04-01 09:22:29 -04001749
1750 encode_string(xdr, args->id_len, args->id);
1751
Weston Andros Adamson2031cd12013-08-13 16:37:32 -04001752 encode_uint32(xdr, args->flags);
1753 encode_uint32(xdr, args->state_protect.how);
1754
1755 switch (args->state_protect.how) {
1756 case SP4_NONE:
1757 break;
1758 case SP4_MACH_CRED:
1759 encode_op_map(xdr, &args->state_protect.enforce);
1760 encode_op_map(xdr, &args->state_protect.allow);
1761 break;
1762 default:
1763 WARN_ON_ONCE(1);
1764 break;
1765 }
Weston Andros Adamsondb8ac8b2012-02-17 15:20:24 -05001766
1767 if (send_implementation_id &&
1768 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 &&
1769 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN)
Jim Reesd751f742012-11-16 18:12:06 -05001770 <= sizeof(impl_name) + 1)
Weston Andros Adamsondb8ac8b2012-02-17 15:20:24 -05001771 len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s",
1772 utsname()->sysname, utsname()->release,
1773 utsname()->version, utsname()->machine);
1774
1775 if (len > 0) {
Weston Andros Adamson2031cd12013-08-13 16:37:32 -04001776 encode_uint32(xdr, 1); /* implementation id array length=1 */
Weston Andros Adamsondb8ac8b2012-02-17 15:20:24 -05001777
1778 encode_string(xdr,
1779 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1,
1780 CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN);
1781 encode_string(xdr, len, impl_name);
1782 /* just send zeros for nii_date - the date is in nii_name */
1783 p = reserve_space(xdr, 12);
1784 p = xdr_encode_hyper(p, 0);
1785 *p = cpu_to_be32(0);
1786 } else
Weston Andros Adamson2031cd12013-08-13 16:37:32 -04001787 encode_uint32(xdr, 0); /* implementation id array length=0 */
Benny Halevy99fe60d2009-04-01 09:22:29 -04001788}
Andy Adamsonfc931582009-04-01 09:22:31 -04001789
1790static void encode_create_session(struct xdr_stream *xdr,
1791 struct nfs41_create_session_args *args,
1792 struct compound_hdr *hdr)
1793{
1794 __be32 *p;
Andy Adamsonfc931582009-04-01 09:22:31 -04001795 struct nfs_client *clp = args->client;
Trond Myklebust89f0ff32015-01-03 14:47:43 -05001796 struct rpc_clnt *clnt = clp->cl_rpcclient;
Chuck Leverf0920752012-05-21 22:45:41 -04001797 struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);
Mike Sager8e0d46e2009-12-17 12:06:26 -05001798 u32 max_resp_sz_cached;
1799
1800 /*
1801 * Assumes OPEN is the biggest non-idempotent compound.
1802 * 2 is the verifier.
1803 */
1804 max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE +
1805 RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT;
Andy Adamsonfc931582009-04-01 09:22:31 -04001806
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001807 encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr);
Trond Myklebust89f0ff32015-01-03 14:47:43 -05001808 p = reserve_space(xdr, 16 + 2*28 + 20 + clnt->cl_nodelen + 12);
Trond Myklebust79969dd2015-02-18 11:30:18 -08001809 p = xdr_encode_hyper(p, args->clientid);
1810 *p++ = cpu_to_be32(args->seqid); /*Sequence id */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001811 *p++ = cpu_to_be32(args->flags); /*flags */
Andy Adamsonfc931582009-04-01 09:22:31 -04001812
Andy Adamsonfc931582009-04-01 09:22:31 -04001813 /* Fore Channel */
Benny Halevyc9c30dd2011-06-11 17:08:39 -04001814 *p++ = cpu_to_be32(0); /* header padding size */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001815 *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */
1816 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */
Mike Sager8e0d46e2009-12-17 12:06:26 -05001817 *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001818 *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */
1819 *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */
1820 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
Andy Adamsonfc931582009-04-01 09:22:31 -04001821
1822 /* Back Channel */
Benny Halevyc9c30dd2011-06-11 17:08:39 -04001823 *p++ = cpu_to_be32(0); /* header padding size */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001824 *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */
1825 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */
1826 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1827 *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */
1828 *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */
1829 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
Andy Adamsonfc931582009-04-01 09:22:31 -04001830
Benny Halevye75bc1c2009-08-14 17:18:54 +03001831 *p++ = cpu_to_be32(args->cb_program); /* cb_program */
Benny Halevye75bc1c2009-08-14 17:18:54 +03001832 *p++ = cpu_to_be32(1);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001833 *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */
Andy Adamsonfc931582009-04-01 09:22:31 -04001834
1835 /* authsys_parms rfc1831 */
Trond Myklebust17f26b12013-08-21 15:48:42 -04001836 *p++ = cpu_to_be32(nn->boot_time.tv_nsec); /* stamp */
Trond Myklebust89f0ff32015-01-03 14:47:43 -05001837 p = xdr_encode_array(p, clnt->cl_nodename, clnt->cl_nodelen);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001838 *p++ = cpu_to_be32(0); /* UID */
1839 *p++ = cpu_to_be32(0); /* GID */
Benny Halevy34558512009-08-14 17:19:30 +03001840 *p = cpu_to_be32(0); /* No more gids */
Andy Adamsonfc931582009-04-01 09:22:31 -04001841}
Andy Adamson0f3e66c2009-04-01 09:22:34 -04001842
1843static void encode_destroy_session(struct xdr_stream *xdr,
1844 struct nfs4_session *session,
1845 struct compound_hdr *hdr)
1846{
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001847 encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr);
1848 encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04001849}
Ricardo Labiaga180197532009-12-05 16:08:40 -05001850
Trond Myklebust66245532012-05-25 17:18:09 -04001851static void encode_destroy_clientid(struct xdr_stream *xdr,
1852 uint64_t clientid,
1853 struct compound_hdr *hdr)
1854{
1855 encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr);
1856 encode_uint64(xdr, clientid);
1857}
1858
Ricardo Labiaga180197532009-12-05 16:08:40 -05001859static void encode_reclaim_complete(struct xdr_stream *xdr,
1860 struct nfs41_reclaim_complete_args *args,
1861 struct compound_hdr *hdr)
1862{
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001863 encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr);
1864 encode_uint32(xdr, args->one_fs);
Ricardo Labiaga180197532009-12-05 16:08:40 -05001865}
Benny Halevy99fe60d2009-04-01 09:22:29 -04001866#endif /* CONFIG_NFS_V4_1 */
1867
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001868static void encode_sequence(struct xdr_stream *xdr,
1869 const struct nfs4_sequence_args *args,
1870 struct compound_hdr *hdr)
1871{
1872#if defined(CONFIG_NFS_V4_1)
Trond Myklebust2b2fa712012-11-16 12:58:36 -05001873 struct nfs4_session *session;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001874 struct nfs4_slot_table *tp;
Trond Myklebust2b2fa712012-11-16 12:58:36 -05001875 struct nfs4_slot *slot = args->sa_slot;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001876 __be32 *p;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001877
Trond Myklebust2b2fa712012-11-16 12:58:36 -05001878 tp = slot->table;
1879 session = tp->session;
Chuck Lever3bd23842013-08-09 12:49:19 -04001880 if (!session)
1881 return;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001882
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001883 encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001884
1885 /*
1886 * Sessionid + seqid + slotid + max slotid + cache_this
1887 */
1888 dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
1889 "max_slotid=%d cache_this=%d\n",
1890 __func__,
1891 ((u32 *)session->sess_id.data)[0],
1892 ((u32 *)session->sess_id.data)[1],
1893 ((u32 *)session->sess_id.data)[2],
1894 ((u32 *)session->sess_id.data)[3],
Trond Myklebust2b2fa712012-11-16 12:58:36 -05001895 slot->seq_nr, slot->slot_nr,
Andy Adamsonfc01cea2009-04-01 09:22:36 -04001896 tp->highest_used_slotid, args->sa_cache_this);
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001897 p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16);
Benny Halevy93f0cf22009-08-14 17:19:06 +03001898 p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001899 *p++ = cpu_to_be32(slot->seq_nr);
Trond Myklebust2b2fa712012-11-16 12:58:36 -05001900 *p++ = cpu_to_be32(slot->slot_nr);
Benny Halevye75bc1c2009-08-14 17:18:54 +03001901 *p++ = cpu_to_be32(tp->highest_used_slotid);
Benny Halevy34558512009-08-14 17:19:30 +03001902 *p = cpu_to_be32(args->sa_cache_this);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04001903#endif /* CONFIG_NFS_V4_1 */
1904}
1905
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001906#ifdef CONFIG_NFS_V4_1
1907static void
1908encode_getdeviceinfo(struct xdr_stream *xdr,
1909 const struct nfs4_getdeviceinfo_args *args,
1910 struct compound_hdr *hdr)
1911{
1912 __be32 *p;
1913
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001914 encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr);
Christoph Hellwig84c9dee2014-09-10 17:37:28 -07001915 p = reserve_space(xdr, NFS4_DEVICEID4_SIZE + 4 + 4);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001916 p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data,
1917 NFS4_DEVICEID4_SIZE);
1918 *p++ = cpu_to_be32(args->pdev->layout_type);
Andy Adamsonf1c097b2013-06-25 19:02:53 -04001919 *p++ = cpu_to_be32(args->pdev->maxcount); /* gdia_maxcount */
Christoph Hellwig84c9dee2014-09-10 17:37:28 -07001920
1921 p = reserve_space(xdr, 4 + 4);
1922 *p++ = cpu_to_be32(1); /* bitmap length */
Trond Myklebust4e590802015-03-09 14:01:25 -04001923 *p++ = cpu_to_be32(args->notify_types);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001924}
1925
1926static void
1927encode_layoutget(struct xdr_stream *xdr,
1928 const struct nfs4_layoutget_args *args,
1929 struct compound_hdr *hdr)
1930{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001931 __be32 *p;
1932
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001933 encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr);
1934 p = reserve_space(xdr, 36);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001935 *p++ = cpu_to_be32(0); /* Signal layout available */
1936 *p++ = cpu_to_be32(args->type);
1937 *p++ = cpu_to_be32(args->range.iomode);
1938 p = xdr_encode_hyper(p, args->range.offset);
1939 p = xdr_encode_hyper(p, args->range.length);
1940 p = xdr_encode_hyper(p, args->minlength);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001941 encode_nfs4_stateid(xdr, &args->stateid);
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001942 encode_uint32(xdr, args->maxcount);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001943
1944 dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n",
1945 __func__,
1946 args->type,
1947 args->range.iomode,
1948 (unsigned long)args->range.offset,
1949 (unsigned long)args->range.length,
1950 args->maxcount);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04001951}
Andy Adamson863a3c62011-03-23 13:27:54 +00001952
1953static int
1954encode_layoutcommit(struct xdr_stream *xdr,
Benny Halevyac7db722011-05-22 19:53:48 +03001955 struct inode *inode,
Christoph Hellwig5f919c92014-08-21 11:09:25 -05001956 struct nfs4_layoutcommit_args *args,
Andy Adamson863a3c62011-03-23 13:27:54 +00001957 struct compound_hdr *hdr)
1958{
1959 __be32 *p;
1960
1961 dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten,
1962 NFS_SERVER(args->inode)->pnfs_curr_ld->id);
1963
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001964 encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr);
1965 p = reserve_space(xdr, 20);
Andy Adamson863a3c62011-03-23 13:27:54 +00001966 /* Only whole file layouts */
1967 p = xdr_encode_hyper(p, 0); /* offset */
Peng Tao3557c6c2011-07-30 20:52:34 -04001968 p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */
Trond Myklebustea9d23f2012-03-04 18:13:56 -05001969 *p = cpu_to_be32(0); /* reclaim */
1970 encode_nfs4_stateid(xdr, &args->stateid);
1971 p = reserve_space(xdr, 20);
Andy Adamson863a3c62011-03-23 13:27:54 +00001972 *p++ = cpu_to_be32(1); /* newoffset = TRUE */
1973 p = xdr_encode_hyper(p, args->lastbytewritten);
1974 *p++ = cpu_to_be32(0); /* Never send time_modify_changed */
1975 *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */
Benny Halevyac7db722011-05-22 19:53:48 +03001976
Christoph Hellwig5f919c92014-08-21 11:09:25 -05001977 if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) {
Benny Halevyac7db722011-05-22 19:53:48 +03001978 NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit(
1979 NFS_I(inode)->layout, xdr, args);
Christoph Hellwig5f919c92014-08-21 11:09:25 -05001980 } else {
1981 encode_uint32(xdr, args->layoutupdate_len);
1982 if (args->layoutupdate_pages) {
1983 xdr_write_pages(xdr, args->layoutupdate_pages, 0,
1984 args->layoutupdate_len);
1985 }
1986 }
Andy Adamson863a3c62011-03-23 13:27:54 +00001987
Andy Adamson863a3c62011-03-23 13:27:54 +00001988 return 0;
1989}
Benny Halevycbe82602011-05-22 19:52:37 +03001990
1991static void
1992encode_layoutreturn(struct xdr_stream *xdr,
1993 const struct nfs4_layoutreturn_args *args,
1994 struct compound_hdr *hdr)
1995{
1996 __be32 *p;
1997
Trond Myklebust475d4ba2012-03-05 11:27:16 -05001998 encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr);
1999 p = reserve_space(xdr, 16);
Benny Halevycbe82602011-05-22 19:52:37 +03002000 *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */
2001 *p++ = cpu_to_be32(args->layout_type);
Peng Tao15eb67c2014-11-17 09:30:36 +08002002 *p++ = cpu_to_be32(args->range.iomode);
Benny Halevycbe82602011-05-22 19:52:37 +03002003 *p = cpu_to_be32(RETURN_FILE);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05002004 p = reserve_space(xdr, 16);
Peng Tao15eb67c2014-11-17 09:30:36 +08002005 p = xdr_encode_hyper(p, args->range.offset);
2006 p = xdr_encode_hyper(p, args->range.length);
Benny Halevycbe82602011-05-22 19:52:37 +03002007 spin_lock(&args->inode->i_lock);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05002008 encode_nfs4_stateid(xdr, &args->stateid);
Benny Halevycbe82602011-05-22 19:52:37 +03002009 spin_unlock(&args->inode->i_lock);
Andy Adamson04a55542011-05-22 19:53:10 +03002010 if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) {
2011 NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn(
2012 NFS_I(args->inode)->layout, xdr, args);
Trond Myklebust475d4ba2012-03-05 11:27:16 -05002013 } else
2014 encode_uint32(xdr, 0);
Benny Halevycbe82602011-05-22 19:52:37 +03002015}
Bryan Schumakerfca78d62011-06-02 14:59:07 -04002016
2017static int
2018encode_secinfo_no_name(struct xdr_stream *xdr,
2019 const struct nfs41_secinfo_no_name_args *args,
2020 struct compound_hdr *hdr)
2021{
Trond Myklebust475d4ba2012-03-05 11:27:16 -05002022 encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr);
2023 encode_uint32(xdr, args->style);
Bryan Schumakerfca78d62011-06-02 14:59:07 -04002024 return 0;
2025}
Bryan Schumaker7d974792011-06-02 14:59:08 -04002026
2027static void encode_test_stateid(struct xdr_stream *xdr,
2028 struct nfs41_test_stateid_args *args,
2029 struct compound_hdr *hdr)
2030{
Trond Myklebust475d4ba2012-03-05 11:27:16 -05002031 encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr);
2032 encode_uint32(xdr, 1);
Trond Myklebustea9d23f2012-03-04 18:13:56 -05002033 encode_nfs4_stateid(xdr, args->stateid);
Bryan Schumaker7d974792011-06-02 14:59:08 -04002034}
Bryan Schumaker9aeda352011-06-02 14:59:09 -04002035
2036static void encode_free_stateid(struct xdr_stream *xdr,
2037 struct nfs41_free_stateid_args *args,
2038 struct compound_hdr *hdr)
2039{
Trond Myklebustab19b482012-03-04 18:13:57 -05002040 encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr);
Trond Myklebust7c1d5fa2013-05-03 14:40:01 -04002041 encode_nfs4_stateid(xdr, &args->stateid);
Bryan Schumaker9aeda352011-06-02 14:59:09 -04002042}
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002043#endif /* CONFIG_NFS_V4_1 */
2044
Linus Torvalds1da177e2005-04-16 15:20:36 -07002045/*
2046 * END OF "GENERIC" ENCODE ROUTINES.
2047 */
2048
Benny Halevy66cc0422009-04-01 09:22:10 -04002049static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
2050{
2051#if defined(CONFIG_NFS_V4_1)
Chuck Lever3bd23842013-08-09 12:49:19 -04002052 struct nfs4_session *session = args->sa_slot->table->session;
2053 if (session)
2054 return session->clp->cl_mvops->minor_version;
Benny Halevy66cc0422009-04-01 09:22:10 -04002055#endif /* CONFIG_NFS_V4_1 */
2056 return 0;
2057}
2058
Linus Torvalds1da177e2005-04-16 15:20:36 -07002059/*
2060 * Encode an ACCESS request
2061 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002062static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr,
2063 const struct nfs4_accessargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002064{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002065 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002066 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002067 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002068
Chuck Lever9f06c712010-12-14 14:59:18 +00002069 encode_compound_hdr(xdr, req, &hdr);
2070 encode_sequence(xdr, &args->seq_args, &hdr);
2071 encode_putfh(xdr, args->fh, &hdr);
2072 encode_access(xdr, args->access, &hdr);
2073 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002074 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002075}
2076
2077/*
2078 * Encode LOOKUP request
2079 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002080static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr,
2081 const struct nfs4_lookup_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002082{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002083 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002084 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002085 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002086
Chuck Lever9f06c712010-12-14 14:59:18 +00002087 encode_compound_hdr(xdr, req, &hdr);
2088 encode_sequence(xdr, &args->seq_args, &hdr);
2089 encode_putfh(xdr, args->dir_fh, &hdr);
2090 encode_lookup(xdr, args->name, &hdr);
2091 encode_getfh(xdr, &hdr);
2092 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002093 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002094}
2095
2096/*
2097 * Encode LOOKUP_ROOT request
2098 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002099static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req,
2100 struct xdr_stream *xdr,
2101 const struct nfs4_lookup_root_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002102{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002103 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002104 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002105 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002106
Chuck Lever9f06c712010-12-14 14:59:18 +00002107 encode_compound_hdr(xdr, req, &hdr);
2108 encode_sequence(xdr, &args->seq_args, &hdr);
2109 encode_putrootfh(xdr, &hdr);
2110 encode_getfh(xdr, &hdr);
2111 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002112 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002113}
2114
2115/*
2116 * Encode REMOVE request
2117 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002118static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr,
2119 const struct nfs_removeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002120{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002121 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002122 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002123 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002124
Chuck Lever9f06c712010-12-14 14:59:18 +00002125 encode_compound_hdr(xdr, req, &hdr);
2126 encode_sequence(xdr, &args->seq_args, &hdr);
2127 encode_putfh(xdr, args->fh, &hdr);
2128 encode_remove(xdr, &args->name, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002129 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002130}
2131
2132/*
2133 * Encode RENAME request
2134 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002135static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr,
2136 const struct nfs_renameargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002137{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002138 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002139 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002140 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002141
Chuck Lever9f06c712010-12-14 14:59:18 +00002142 encode_compound_hdr(xdr, req, &hdr);
2143 encode_sequence(xdr, &args->seq_args, &hdr);
2144 encode_putfh(xdr, args->old_dir, &hdr);
2145 encode_savefh(xdr, &hdr);
2146 encode_putfh(xdr, args->new_dir, &hdr);
2147 encode_rename(xdr, args->old_name, args->new_name, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002148 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002149}
2150
2151/*
2152 * Encode LINK request
2153 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002154static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr,
2155 const struct nfs4_link_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002156{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002157 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002158 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002159 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002160
Chuck Lever9f06c712010-12-14 14:59:18 +00002161 encode_compound_hdr(xdr, req, &hdr);
2162 encode_sequence(xdr, &args->seq_args, &hdr);
2163 encode_putfh(xdr, args->fh, &hdr);
2164 encode_savefh(xdr, &hdr);
2165 encode_putfh(xdr, args->dir_fh, &hdr);
2166 encode_link(xdr, args->name, &hdr);
Chuck Lever9f06c712010-12-14 14:59:18 +00002167 encode_restorefh(xdr, &hdr);
2168 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002169 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002170}
2171
2172/*
2173 * Encode CREATE request
2174 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002175static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr,
2176 const struct nfs4_create_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002177{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002178 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002179 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002180 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002181
Chuck Lever9f06c712010-12-14 14:59:18 +00002182 encode_compound_hdr(xdr, req, &hdr);
2183 encode_sequence(xdr, &args->seq_args, &hdr);
2184 encode_putfh(xdr, args->dir_fh, &hdr);
Chuck Lever9f06c712010-12-14 14:59:18 +00002185 encode_create(xdr, args, &hdr);
2186 encode_getfh(xdr, &hdr);
2187 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002188 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002189}
2190
2191/*
2192 * Encode SYMLINK request
2193 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002194static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr,
2195 const struct nfs4_create_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002196{
Chuck Lever9f06c712010-12-14 14:59:18 +00002197 nfs4_xdr_enc_create(req, xdr, args);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002198}
2199
2200/*
2201 * Encode GETATTR request
2202 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002203static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr,
2204 const struct nfs4_getattr_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002205{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002206 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002207 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002208 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002209
Chuck Lever9f06c712010-12-14 14:59:18 +00002210 encode_compound_hdr(xdr, req, &hdr);
2211 encode_sequence(xdr, &args->seq_args, &hdr);
2212 encode_putfh(xdr, args->fh, &hdr);
2213 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002214 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002215}
2216
2217/*
2218 * Encode a CLOSE request
2219 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002220static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
2221 struct nfs_closeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002222{
Andy Adamson05d564f2008-12-23 16:06:15 -05002223 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002224 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Andy Adamson05d564f2008-12-23 16:06:15 -05002225 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002226
Chuck Lever9f06c712010-12-14 14:59:18 +00002227 encode_compound_hdr(xdr, req, &hdr);
2228 encode_sequence(xdr, &args->seq_args, &hdr);
2229 encode_putfh(xdr, args->fh, &hdr);
2230 encode_close(xdr, args, &hdr);
2231 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002232 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002233}
2234
2235/*
2236 * Encode an OPEN request
2237 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002238static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
2239 struct nfs_openargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002240{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002241 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002242 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002243 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002244
Chuck Lever9f06c712010-12-14 14:59:18 +00002245 encode_compound_hdr(xdr, req, &hdr);
2246 encode_sequence(xdr, &args->seq_args, &hdr);
2247 encode_putfh(xdr, args->fh, &hdr);
Chuck Lever9f06c712010-12-14 14:59:18 +00002248 encode_open(xdr, args, &hdr);
2249 encode_getfh(xdr, &hdr);
Weston Andros Adamsonae2bb032012-10-02 14:49:52 -07002250 if (args->access)
2251 encode_access(xdr, args->access, &hdr);
Trond Myklebust1549210f2012-06-05 09:16:47 -04002252 encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002253 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002254}
2255
2256/*
2257 * Encode an OPEN_CONFIRM request
2258 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002259static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req,
2260 struct xdr_stream *xdr,
2261 struct nfs_open_confirmargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002262{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002263 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002264 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002265 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002266
Chuck Lever9f06c712010-12-14 14:59:18 +00002267 encode_compound_hdr(xdr, req, &hdr);
2268 encode_putfh(xdr, args->fh, &hdr);
2269 encode_open_confirm(xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002270 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002271}
2272
2273/*
2274 * Encode an OPEN request with no attributes.
2275 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002276static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req,
2277 struct xdr_stream *xdr,
2278 struct nfs_openargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002279{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002280 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002281 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002282 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002283
Chuck Lever9f06c712010-12-14 14:59:18 +00002284 encode_compound_hdr(xdr, req, &hdr);
2285 encode_sequence(xdr, &args->seq_args, &hdr);
2286 encode_putfh(xdr, args->fh, &hdr);
2287 encode_open(xdr, args, &hdr);
Weston Andros Adamsonae2bb032012-10-02 14:49:52 -07002288 if (args->access)
2289 encode_access(xdr, args->access, &hdr);
Andy Adamsone23008e2012-10-02 21:07:32 -04002290 encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002291 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002292}
2293
2294/*
2295 * Encode an OPEN_DOWNGRADE request
2296 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002297static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req,
2298 struct xdr_stream *xdr,
2299 struct nfs_closeargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002300{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002301 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002302 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002303 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002304
Chuck Lever9f06c712010-12-14 14:59:18 +00002305 encode_compound_hdr(xdr, req, &hdr);
2306 encode_sequence(xdr, &args->seq_args, &hdr);
2307 encode_putfh(xdr, args->fh, &hdr);
2308 encode_open_downgrade(xdr, args, &hdr);
2309 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002310 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002311}
2312
2313/*
2314 * Encode a LOCK request
2315 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002316static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr,
2317 struct nfs_lock_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002318{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002319 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002320 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002321 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002322
Chuck Lever9f06c712010-12-14 14:59:18 +00002323 encode_compound_hdr(xdr, req, &hdr);
2324 encode_sequence(xdr, &args->seq_args, &hdr);
2325 encode_putfh(xdr, args->fh, &hdr);
2326 encode_lock(xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002327 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002328}
2329
2330/*
2331 * Encode a LOCKT request
2332 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002333static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr,
2334 struct nfs_lockt_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002335{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002336 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002337 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002338 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002339
Chuck Lever9f06c712010-12-14 14:59:18 +00002340 encode_compound_hdr(xdr, req, &hdr);
2341 encode_sequence(xdr, &args->seq_args, &hdr);
2342 encode_putfh(xdr, args->fh, &hdr);
2343 encode_lockt(xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002344 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002345}
2346
2347/*
2348 * Encode a LOCKU request
2349 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002350static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr,
2351 struct nfs_locku_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002352{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002353 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002354 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002355 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002356
Chuck Lever9f06c712010-12-14 14:59:18 +00002357 encode_compound_hdr(xdr, req, &hdr);
2358 encode_sequence(xdr, &args->seq_args, &hdr);
2359 encode_putfh(xdr, args->fh, &hdr);
2360 encode_locku(xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002361 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002362}
2363
Chuck Lever9f06c712010-12-14 14:59:18 +00002364static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req,
2365 struct xdr_stream *xdr,
2366 struct nfs_release_lockowner_args *args)
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04002367{
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04002368 struct compound_hdr hdr = {
2369 .minorversion = 0,
2370 };
2371
Chuck Lever9f06c712010-12-14 14:59:18 +00002372 encode_compound_hdr(xdr, req, &hdr);
2373 encode_release_lockowner(xdr, &args->lock_owner, &hdr);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04002374 encode_nops(&hdr);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04002375}
2376
Linus Torvalds1da177e2005-04-16 15:20:36 -07002377/*
2378 * Encode a READLINK request
2379 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002380static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr,
2381 const struct nfs4_readlink *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002382{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002383 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002384 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002385 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002386
Chuck Lever9f06c712010-12-14 14:59:18 +00002387 encode_compound_hdr(xdr, req, &hdr);
2388 encode_sequence(xdr, &args->seq_args, &hdr);
2389 encode_putfh(xdr, args->fh, &hdr);
2390 encode_readlink(xdr, args, req, &hdr);
Trond Myklebuste3a535e2007-07-19 10:03:38 -04002391
Benny Halevy28f56692009-04-01 09:22:09 -04002392 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
Trond Myklebuste3a535e2007-07-19 10:03:38 -04002393 args->pgbase, args->pglen);
Andy Adamsond0179312008-12-23 16:06:17 -05002394 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002395}
2396
2397/*
2398 * Encode a READDIR request
2399 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002400static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr,
2401 const struct nfs4_readdir_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002402{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002403 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002404 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002405 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002406
Chuck Lever9f06c712010-12-14 14:59:18 +00002407 encode_compound_hdr(xdr, req, &hdr);
2408 encode_sequence(xdr, &args->seq_args, &hdr);
2409 encode_putfh(xdr, args->fh, &hdr);
2410 encode_readdir(xdr, args, req, &hdr);
Trond Myklebustd6ac02d2007-07-19 10:03:37 -04002411
Benny Halevy28f56692009-04-01 09:22:09 -04002412 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
Trond Myklebustd6ac02d2007-07-19 10:03:37 -04002413 args->pgbase, args->count);
2414 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
Benny Halevy28f56692009-04-01 09:22:09 -04002415 __func__, hdr.replen << 2, args->pages,
Trond Myklebustd6ac02d2007-07-19 10:03:37 -04002416 args->pgbase, args->count);
Andy Adamsond0179312008-12-23 16:06:17 -05002417 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002418}
2419
2420/*
2421 * Encode a READ request
2422 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002423static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr,
Anna Schumaker3c6b8992014-05-06 09:12:24 -04002424 struct nfs_pgio_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002425{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002426 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002427 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002428 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002429
Chuck Lever9f06c712010-12-14 14:59:18 +00002430 encode_compound_hdr(xdr, req, &hdr);
2431 encode_sequence(xdr, &args->seq_args, &hdr);
2432 encode_putfh(xdr, args->fh, &hdr);
2433 encode_read(xdr, args, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002434
Benny Halevy28f56692009-04-01 09:22:09 -04002435 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002436 args->pages, args->pgbase, args->count);
\"Talpey, Thomas\4f22ccc2007-09-10 13:44:58 -04002437 req->rq_rcv_buf.flags |= XDRBUF_READ;
Andy Adamsond0179312008-12-23 16:06:17 -05002438 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002439}
2440
2441/*
2442 * Encode an SETATTR request
2443 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002444static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr,
2445 struct nfs_setattrargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002446{
Andy Adamson05d564f2008-12-23 16:06:15 -05002447 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002448 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Andy Adamson05d564f2008-12-23 16:06:15 -05002449 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002450
Chuck Lever9f06c712010-12-14 14:59:18 +00002451 encode_compound_hdr(xdr, req, &hdr);
2452 encode_sequence(xdr, &args->seq_args, &hdr);
2453 encode_putfh(xdr, args->fh, &hdr);
2454 encode_setattr(xdr, args, args->server, &hdr);
2455 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002456 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002457}
2458
2459/*
J. Bruce Fields029d1052005-06-22 17:16:22 +00002460 * Encode a GETACL request
2461 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002462static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
2463 struct nfs_getaclargs *args)
J. Bruce Fields029d1052005-06-22 17:16:22 +00002464{
J. Bruce Fields029d1052005-06-22 17:16:22 +00002465 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002466 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
J. Bruce Fields029d1052005-06-22 17:16:22 +00002467 };
Benny Halevy28f56692009-04-01 09:22:09 -04002468 uint32_t replen;
J. Bruce Fields029d1052005-06-22 17:16:22 +00002469
Chuck Lever9f06c712010-12-14 14:59:18 +00002470 encode_compound_hdr(xdr, req, &hdr);
2471 encode_sequence(xdr, &args->seq_args, &hdr);
2472 encode_putfh(xdr, args->fh, &hdr);
Andy Adamsonbf118a32011-12-07 11:55:27 -05002473 replen = hdr.replen + op_decode_hdr_maxsz + 1;
Chuck Lever9f06c712010-12-14 14:59:18 +00002474 encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr);
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002475
Benny Halevy28f56692009-04-01 09:22:09 -04002476 xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
J. Bruce Fields029d1052005-06-22 17:16:22 +00002477 args->acl_pages, args->acl_pgbase, args->acl_len);
Andy Adamsonbf118a32011-12-07 11:55:27 -05002478
Andy Adamsond0179312008-12-23 16:06:17 -05002479 encode_nops(&hdr);
J. Bruce Fields029d1052005-06-22 17:16:22 +00002480}
2481
2482/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002483 * Encode a WRITE request
2484 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002485static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr,
Anna Schumaker3c6b8992014-05-06 09:12:24 -04002486 struct nfs_pgio_args *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002487{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002488 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002489 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002490 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002491
Chuck Lever9f06c712010-12-14 14:59:18 +00002492 encode_compound_hdr(xdr, req, &hdr);
2493 encode_sequence(xdr, &args->seq_args, &hdr);
2494 encode_putfh(xdr, args->fh, &hdr);
2495 encode_write(xdr, args, &hdr);
\"Talpey, Thomas\4f22ccc2007-09-10 13:44:58 -04002496 req->rq_snd_buf.flags |= XDRBUF_WRITE;
Fred Isaman7ffd1062011-03-03 15:13:46 +00002497 if (args->bitmask)
2498 encode_getfattr(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002499 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002500}
2501
2502/*
2503 * a COMMIT request
2504 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002505static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
Fred Isaman0b7c0152012-04-20 14:47:39 -04002506 struct nfs_commitargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002507{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002508 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002509 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002510 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002511
Chuck Lever9f06c712010-12-14 14:59:18 +00002512 encode_compound_hdr(xdr, req, &hdr);
2513 encode_sequence(xdr, &args->seq_args, &hdr);
2514 encode_putfh(xdr, args->fh, &hdr);
2515 encode_commit(xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002516 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002517}
2518
2519/*
2520 * FSINFO request
2521 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002522static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
2523 struct nfs4_fsinfo_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002524{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002525 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002526 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002527 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002528
Chuck Lever9f06c712010-12-14 14:59:18 +00002529 encode_compound_hdr(xdr, req, &hdr);
2530 encode_sequence(xdr, &args->seq_args, &hdr);
2531 encode_putfh(xdr, args->fh, &hdr);
2532 encode_fsinfo(xdr, args->bitmask, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002533 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002534}
2535
2536/*
2537 * a PATHCONF request
2538 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002539static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
2540 const struct nfs4_pathconf_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002541{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002542 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002543 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002544 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002545
Chuck Lever9f06c712010-12-14 14:59:18 +00002546 encode_compound_hdr(xdr, req, &hdr);
2547 encode_sequence(xdr, &args->seq_args, &hdr);
2548 encode_putfh(xdr, args->fh, &hdr);
2549 encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0],
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002550 &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002551 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002552}
2553
2554/*
2555 * a STATFS request
2556 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002557static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
2558 const struct nfs4_statfs_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002559{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002560 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002561 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002562 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002563
Chuck Lever9f06c712010-12-14 14:59:18 +00002564 encode_compound_hdr(xdr, req, &hdr);
2565 encode_sequence(xdr, &args->seq_args, &hdr);
2566 encode_putfh(xdr, args->fh, &hdr);
2567 encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0],
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002568 args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002569 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002570}
2571
2572/*
2573 * GETATTR_BITMAP request
2574 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002575static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
2576 struct xdr_stream *xdr,
2577 struct nfs4_server_caps_arg *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002578{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002579 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002580 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002581 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002582
Chuck Lever9f06c712010-12-14 14:59:18 +00002583 encode_compound_hdr(xdr, req, &hdr);
2584 encode_sequence(xdr, &args->seq_args, &hdr);
2585 encode_putfh(xdr, args->fhandle, &hdr);
2586 encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
Chuck Lever264e6352012-03-01 17:02:05 -05002587 FATTR4_WORD0_FH_EXPIRE_TYPE|
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002588 FATTR4_WORD0_LINK_SUPPORT|
2589 FATTR4_WORD0_SYMLINK_SUPPORT|
2590 FATTR4_WORD0_ACLSUPPORT, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002591 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002592}
2593
2594/*
2595 * a RENEW request
2596 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002597static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
2598 struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002599{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002600 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002601 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002602 };
2603
Chuck Lever9f06c712010-12-14 14:59:18 +00002604 encode_compound_hdr(xdr, req, &hdr);
Chuck Leverbb4dae52012-03-01 17:01:48 -05002605 encode_renew(xdr, clp->cl_clientid, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002606 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002607}
2608
2609/*
2610 * a SETCLIENTID request
2611 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002612static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req,
2613 struct xdr_stream *xdr,
2614 struct nfs4_setclientid *sc)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002615{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002616 struct compound_hdr hdr = {
Andy Adamsond0179312008-12-23 16:06:17 -05002617 .nops = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002618 };
2619
Chuck Lever9f06c712010-12-14 14:59:18 +00002620 encode_compound_hdr(xdr, req, &hdr);
2621 encode_setclientid(xdr, sc, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002622 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002623}
2624
2625/*
2626 * a SETCLIENTID_CONFIRM request
2627 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002628static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req,
2629 struct xdr_stream *xdr,
2630 struct nfs4_setclientid_res *arg)
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 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002635
Chuck Lever9f06c712010-12-14 14:59:18 +00002636 encode_compound_hdr(xdr, req, &hdr);
2637 encode_setclientid_confirm(xdr, arg, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002638 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002639}
2640
2641/*
2642 * DELEGRETURN request
2643 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002644static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
2645 struct xdr_stream *xdr,
2646 const struct nfs4_delegreturnargs *args)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002647{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002648 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002649 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002650 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07002651
Chuck Lever9f06c712010-12-14 14:59:18 +00002652 encode_compound_hdr(xdr, req, &hdr);
2653 encode_sequence(xdr, &args->seq_args, &hdr);
2654 encode_putfh(xdr, args->fhandle, &hdr);
Chuck Lever9f06c712010-12-14 14:59:18 +00002655 encode_getfattr(xdr, args->bitmask, &hdr);
Trond Myklebuste144cbc2012-04-28 16:05:03 -04002656 encode_delegreturn(xdr, args->stateid, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05002657 encode_nops(&hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002658}
2659
2660/*
Trond Myklebust683b57b2006-06-09 09:34:22 -04002661 * Encode FS_LOCATIONS request
2662 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002663static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
2664 struct xdr_stream *xdr,
2665 struct nfs4_fs_locations_arg *args)
Trond Myklebust683b57b2006-06-09 09:34:22 -04002666{
Trond Myklebust683b57b2006-06-09 09:34:22 -04002667 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04002668 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Trond Myklebust683b57b2006-06-09 09:34:22 -04002669 };
Benny Halevy28f56692009-04-01 09:22:09 -04002670 uint32_t replen;
Trond Myklebust683b57b2006-06-09 09:34:22 -04002671
Chuck Lever9f06c712010-12-14 14:59:18 +00002672 encode_compound_hdr(xdr, req, &hdr);
2673 encode_sequence(xdr, &args->seq_args, &hdr);
Chuck Leverb03d7352013-10-17 14:12:50 -04002674 if (args->migration) {
2675 encode_putfh(xdr, args->fh, &hdr);
2676 replen = hdr.replen;
2677 encode_fs_locations(xdr, args->bitmask, &hdr);
2678 if (args->renew)
2679 encode_renew(xdr, args->clientid, &hdr);
2680 } else {
2681 encode_putfh(xdr, args->dir_fh, &hdr);
2682 encode_lookup(xdr, args->name, &hdr);
2683 replen = hdr.replen;
2684 encode_fs_locations(xdr, args->bitmask, &hdr);
2685 }
Andy Adamsoncf8cdbe2008-12-23 16:06:18 -05002686
Chuck Leverb03d7352013-10-17 14:12:50 -04002687 /* Set up reply kvec to capture returned fs_locations array. */
Benny Halevy28f56692009-04-01 09:22:09 -04002688 xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
Trond Myklebust683b57b2006-06-09 09:34:22 -04002689 0, PAGE_SIZE);
Andy Adamsond0179312008-12-23 16:06:17 -05002690 encode_nops(&hdr);
Trond Myklebust683b57b2006-06-09 09:34:22 -04002691}
2692
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00002693/*
2694 * Encode SECINFO request
2695 */
2696static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
2697 struct xdr_stream *xdr,
2698 struct nfs4_secinfo_arg *args)
2699{
2700 struct compound_hdr hdr = {
2701 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2702 };
2703
2704 encode_compound_hdr(xdr, req, &hdr);
2705 encode_sequence(xdr, &args->seq_args, &hdr);
2706 encode_putfh(xdr, args->dir_fh, &hdr);
2707 encode_secinfo(xdr, args->name, &hdr);
2708 encode_nops(&hdr);
2709}
2710
Chuck Lever44c99932013-10-17 14:13:30 -04002711/*
2712 * Encode FSID_PRESENT request
2713 */
2714static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req,
2715 struct xdr_stream *xdr,
2716 struct nfs4_fsid_present_arg *args)
2717{
2718 struct compound_hdr hdr = {
2719 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2720 };
2721
2722 encode_compound_hdr(xdr, req, &hdr);
2723 encode_sequence(xdr, &args->seq_args, &hdr);
2724 encode_putfh(xdr, args->fh, &hdr);
2725 encode_getfh(xdr, &hdr);
2726 if (args->renew)
2727 encode_renew(xdr, args->clientid, &hdr);
2728 encode_nops(&hdr);
2729}
2730
Benny Halevy99fe60d2009-04-01 09:22:29 -04002731#if defined(CONFIG_NFS_V4_1)
2732/*
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -04002733 * BIND_CONN_TO_SESSION request
2734 */
2735static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req,
2736 struct xdr_stream *xdr,
Trond Myklebust71a097c2015-02-18 09:27:18 -08002737 struct nfs41_bind_conn_to_session_args *args)
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -04002738{
2739 struct compound_hdr hdr = {
Trond Myklebust71a097c2015-02-18 09:27:18 -08002740 .minorversion = args->client->cl_mvops->minor_version,
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -04002741 };
2742
2743 encode_compound_hdr(xdr, req, &hdr);
Trond Myklebust71a097c2015-02-18 09:27:18 -08002744 encode_bind_conn_to_session(xdr, args, &hdr);
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -04002745 encode_nops(&hdr);
2746}
2747
2748/*
Benny Halevy99fe60d2009-04-01 09:22:29 -04002749 * EXCHANGE_ID request
2750 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002751static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req,
2752 struct xdr_stream *xdr,
2753 struct nfs41_exchange_id_args *args)
Benny Halevy99fe60d2009-04-01 09:22:29 -04002754{
Benny Halevy99fe60d2009-04-01 09:22:29 -04002755 struct compound_hdr hdr = {
Trond Myklebusta4432342010-06-16 09:52:27 -04002756 .minorversion = args->client->cl_mvops->minor_version,
Benny Halevy99fe60d2009-04-01 09:22:29 -04002757 };
2758
Chuck Lever9f06c712010-12-14 14:59:18 +00002759 encode_compound_hdr(xdr, req, &hdr);
2760 encode_exchange_id(xdr, args, &hdr);
Benny Halevy99fe60d2009-04-01 09:22:29 -04002761 encode_nops(&hdr);
Benny Halevy99fe60d2009-04-01 09:22:29 -04002762}
Andy Adamson2050f0c2009-04-01 09:22:30 -04002763
2764/*
Andy Adamsonfc931582009-04-01 09:22:31 -04002765 * a CREATE_SESSION request
2766 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002767static void nfs4_xdr_enc_create_session(struct rpc_rqst *req,
2768 struct xdr_stream *xdr,
2769 struct nfs41_create_session_args *args)
Andy Adamsonfc931582009-04-01 09:22:31 -04002770{
Andy Adamsonfc931582009-04-01 09:22:31 -04002771 struct compound_hdr hdr = {
Trond Myklebusta4432342010-06-16 09:52:27 -04002772 .minorversion = args->client->cl_mvops->minor_version,
Andy Adamsonfc931582009-04-01 09:22:31 -04002773 };
2774
Chuck Lever9f06c712010-12-14 14:59:18 +00002775 encode_compound_hdr(xdr, req, &hdr);
2776 encode_create_session(xdr, args, &hdr);
Andy Adamsonfc931582009-04-01 09:22:31 -04002777 encode_nops(&hdr);
Andy Adamsonfc931582009-04-01 09:22:31 -04002778}
2779
2780/*
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002781 * a DESTROY_SESSION request
2782 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002783static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req,
2784 struct xdr_stream *xdr,
2785 struct nfs4_session *session)
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002786{
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002787 struct compound_hdr hdr = {
Trond Myklebusta4432342010-06-16 09:52:27 -04002788 .minorversion = session->clp->cl_mvops->minor_version,
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002789 };
2790
Chuck Lever9f06c712010-12-14 14:59:18 +00002791 encode_compound_hdr(xdr, req, &hdr);
2792 encode_destroy_session(xdr, session, &hdr);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002793 encode_nops(&hdr);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04002794}
2795
2796/*
Trond Myklebust66245532012-05-25 17:18:09 -04002797 * a DESTROY_CLIENTID request
2798 */
2799static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req,
2800 struct xdr_stream *xdr,
2801 struct nfs_client *clp)
2802{
2803 struct compound_hdr hdr = {
2804 .minorversion = clp->cl_mvops->minor_version,
2805 };
2806
2807 encode_compound_hdr(xdr, req, &hdr);
2808 encode_destroy_clientid(xdr, clp->cl_clientid, &hdr);
2809 encode_nops(&hdr);
2810}
2811
2812/*
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002813 * a SEQUENCE request
2814 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002815static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr,
2816 struct nfs4_sequence_args *args)
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002817{
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002818 struct compound_hdr hdr = {
2819 .minorversion = nfs4_xdr_minorversion(args),
2820 };
2821
Chuck Lever9f06c712010-12-14 14:59:18 +00002822 encode_compound_hdr(xdr, req, &hdr);
2823 encode_sequence(xdr, args, &hdr);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002824 encode_nops(&hdr);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04002825}
2826
2827/*
Andy Adamson2050f0c2009-04-01 09:22:30 -04002828 * a GET_LEASE_TIME request
2829 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002830static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req,
2831 struct xdr_stream *xdr,
2832 struct nfs4_get_lease_time_args *args)
Andy Adamson2050f0c2009-04-01 09:22:30 -04002833{
Andy Adamson2050f0c2009-04-01 09:22:30 -04002834 struct compound_hdr hdr = {
2835 .minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
2836 };
Fred Isamandae100c2011-07-30 20:52:37 -04002837 const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME };
Andy Adamson2050f0c2009-04-01 09:22:30 -04002838
Chuck Lever9f06c712010-12-14 14:59:18 +00002839 encode_compound_hdr(xdr, req, &hdr);
2840 encode_sequence(xdr, &args->la_seq_args, &hdr);
2841 encode_putrootfh(xdr, &hdr);
2842 encode_fsinfo(xdr, lease_bitmap, &hdr);
Andy Adamson2050f0c2009-04-01 09:22:30 -04002843 encode_nops(&hdr);
Andy Adamson2050f0c2009-04-01 09:22:30 -04002844}
Ricardo Labiaga180197532009-12-05 16:08:40 -05002845
2846/*
2847 * a RECLAIM_COMPLETE request
2848 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002849static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req,
2850 struct xdr_stream *xdr,
2851 struct nfs41_reclaim_complete_args *args)
Ricardo Labiaga180197532009-12-05 16:08:40 -05002852{
Ricardo Labiaga180197532009-12-05 16:08:40 -05002853 struct compound_hdr hdr = {
2854 .minorversion = nfs4_xdr_minorversion(&args->seq_args)
2855 };
2856
Chuck Lever9f06c712010-12-14 14:59:18 +00002857 encode_compound_hdr(xdr, req, &hdr);
2858 encode_sequence(xdr, &args->seq_args, &hdr);
2859 encode_reclaim_complete(xdr, args, &hdr);
Ricardo Labiaga180197532009-12-05 16:08:40 -05002860 encode_nops(&hdr);
Ricardo Labiaga180197532009-12-05 16:08:40 -05002861}
2862
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002863/*
2864 * Encode GETDEVICEINFO request
2865 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002866static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req,
2867 struct xdr_stream *xdr,
2868 struct nfs4_getdeviceinfo_args *args)
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002869{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002870 struct compound_hdr hdr = {
2871 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2872 };
2873
Chuck Lever9f06c712010-12-14 14:59:18 +00002874 encode_compound_hdr(xdr, req, &hdr);
2875 encode_sequence(xdr, &args->seq_args, &hdr);
2876 encode_getdeviceinfo(xdr, args, &hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002877
2878 /* set up reply kvec. Subtract notification bitmap max size (2)
2879 * so that notification bitmap is put in xdr_buf tail */
2880 xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2,
2881 args->pdev->pages, args->pdev->pgbase,
2882 args->pdev->pglen);
2883
2884 encode_nops(&hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002885}
2886
2887/*
2888 * Encode LAYOUTGET request
2889 */
Chuck Lever9f06c712010-12-14 14:59:18 +00002890static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
2891 struct xdr_stream *xdr,
2892 struct nfs4_layoutget_args *args)
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002893{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002894 struct compound_hdr hdr = {
2895 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2896 };
2897
Chuck Lever9f06c712010-12-14 14:59:18 +00002898 encode_compound_hdr(xdr, req, &hdr);
2899 encode_sequence(xdr, &args->seq_args, &hdr);
2900 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2901 encode_layoutget(xdr, args, &hdr);
Weston Andros Adamson35124a02011-03-24 16:48:21 -04002902
2903 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
2904 args->layout.pages, 0, args->layout.pglen);
2905
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002906 encode_nops(&hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04002907}
Andy Adamson863a3c62011-03-23 13:27:54 +00002908
2909/*
2910 * Encode LAYOUTCOMMIT request
2911 */
Benny Halevycbe82602011-05-22 19:52:37 +03002912static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req,
2913 struct xdr_stream *xdr,
2914 struct nfs4_layoutcommit_args *args)
Andy Adamson863a3c62011-03-23 13:27:54 +00002915{
Benny Halevyac7db722011-05-22 19:53:48 +03002916 struct nfs4_layoutcommit_data *data =
2917 container_of(args, struct nfs4_layoutcommit_data, args);
Andy Adamson863a3c62011-03-23 13:27:54 +00002918 struct compound_hdr hdr = {
2919 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2920 };
2921
2922 encode_compound_hdr(xdr, req, &hdr);
2923 encode_sequence(xdr, &args->seq_args, &hdr);
2924 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
Benny Halevyac7db722011-05-22 19:53:48 +03002925 encode_layoutcommit(xdr, data->args.inode, args, &hdr);
Andy Adamson863a3c62011-03-23 13:27:54 +00002926 encode_getfattr(xdr, args->bitmask, &hdr);
2927 encode_nops(&hdr);
Benny Halevycbe82602011-05-22 19:52:37 +03002928}
2929
2930/*
2931 * Encode LAYOUTRETURN request
2932 */
2933static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req,
2934 struct xdr_stream *xdr,
2935 struct nfs4_layoutreturn_args *args)
2936{
2937 struct compound_hdr hdr = {
2938 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2939 };
2940
2941 encode_compound_hdr(xdr, req, &hdr);
2942 encode_sequence(xdr, &args->seq_args, &hdr);
2943 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2944 encode_layoutreturn(xdr, args, &hdr);
2945 encode_nops(&hdr);
Andy Adamson863a3c62011-03-23 13:27:54 +00002946}
Bryan Schumakerfca78d62011-06-02 14:59:07 -04002947
2948/*
2949 * Encode SECINFO_NO_NAME request
2950 */
2951static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
2952 struct xdr_stream *xdr,
2953 struct nfs41_secinfo_no_name_args *args)
2954{
2955 struct compound_hdr hdr = {
2956 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2957 };
2958
2959 encode_compound_hdr(xdr, req, &hdr);
2960 encode_sequence(xdr, &args->seq_args, &hdr);
2961 encode_putrootfh(xdr, &hdr);
2962 encode_secinfo_no_name(xdr, args, &hdr);
2963 encode_nops(&hdr);
2964 return 0;
2965}
Bryan Schumaker7d974792011-06-02 14:59:08 -04002966
2967/*
2968 * Encode TEST_STATEID request
2969 */
2970static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req,
2971 struct xdr_stream *xdr,
2972 struct nfs41_test_stateid_args *args)
2973{
2974 struct compound_hdr hdr = {
2975 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2976 };
2977
2978 encode_compound_hdr(xdr, req, &hdr);
2979 encode_sequence(xdr, &args->seq_args, &hdr);
2980 encode_test_stateid(xdr, args, &hdr);
2981 encode_nops(&hdr);
2982}
Bryan Schumaker9aeda352011-06-02 14:59:09 -04002983
2984/*
2985 * Encode FREE_STATEID request
2986 */
2987static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req,
2988 struct xdr_stream *xdr,
2989 struct nfs41_free_stateid_args *args)
2990{
2991 struct compound_hdr hdr = {
2992 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2993 };
2994
2995 encode_compound_hdr(xdr, req, &hdr);
2996 encode_sequence(xdr, &args->seq_args, &hdr);
2997 encode_free_stateid(xdr, args, &hdr);
2998 encode_nops(&hdr);
2999}
Benny Halevy99fe60d2009-04-01 09:22:29 -04003000#endif /* CONFIG_NFS_V4_1 */
3001
Benny Halevy686841b2009-08-14 17:19:48 +03003002static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
3003{
3004 dprintk("nfs: %s: prematurely hit end of receive buffer. "
3005 "Remaining buffer length is %tu words.\n",
3006 func, xdr->end - xdr->p);
3007}
Linus Torvalds1da177e2005-04-16 15:20:36 -07003008
Trond Myklebust683b57b2006-06-09 09:34:22 -04003009static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003010{
Al Viro8687b632006-10-19 23:28:48 -07003011 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003012
Benny Halevyc0eae662009-08-14 17:20:14 +03003013 p = xdr_inline_decode(xdr, 4);
3014 if (unlikely(!p))
3015 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003016 *len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003017 p = xdr_inline_decode(xdr, *len);
3018 if (unlikely(!p))
3019 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003020 *string = (char *)p;
3021 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003022out_overflow:
3023 print_overflow_msg(__func__, xdr);
3024 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003025}
3026
3027static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
3028{
Al Viro8687b632006-10-19 23:28:48 -07003029 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003030
Benny Halevyc0eae662009-08-14 17:20:14 +03003031 p = xdr_inline_decode(xdr, 8);
3032 if (unlikely(!p))
3033 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003034 hdr->status = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03003035 hdr->taglen = be32_to_cpup(p);
Andy Adamson6c0195a2008-12-23 16:06:15 -05003036
Benny Halevyc0eae662009-08-14 17:20:14 +03003037 p = xdr_inline_decode(xdr, hdr->taglen + 4);
3038 if (unlikely(!p))
3039 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003040 hdr->tag = (char *)p;
3041 p += XDR_QUADLEN(hdr->taglen);
Benny Halevycccddf42009-08-14 17:20:19 +03003042 hdr->nops = be32_to_cpup(p);
Benny Halevyaadf6152008-12-23 16:06:13 -05003043 if (unlikely(hdr->nops < 1))
3044 return nfs4_stat_to_errno(hdr->status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003045 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003046out_overflow:
3047 print_overflow_msg(__func__, xdr);
3048 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003049}
3050
Trond Myklebustc7848f62013-12-04 17:39:23 -05003051static bool __decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected,
3052 int *nfs_retval)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003053{
Al Viro8687b632006-10-19 23:28:48 -07003054 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003055 uint32_t opnum;
3056 int32_t nfserr;
3057
Benny Halevyc0eae662009-08-14 17:20:14 +03003058 p = xdr_inline_decode(xdr, 8);
3059 if (unlikely(!p))
3060 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003061 opnum = be32_to_cpup(p++);
Trond Myklebustc7848f62013-12-04 17:39:23 -05003062 if (unlikely(opnum != expected))
3063 goto out_bad_operation;
Benny Halevycccddf42009-08-14 17:20:19 +03003064 nfserr = be32_to_cpup(p);
Trond Myklebustc7848f62013-12-04 17:39:23 -05003065 if (nfserr == NFS_OK)
3066 *nfs_retval = 0;
3067 else
3068 *nfs_retval = nfs4_stat_to_errno(nfserr);
3069 return true;
3070out_bad_operation:
3071 dprintk("nfs: Server returned operation"
3072 " %d but we issued a request for %d\n",
3073 opnum, expected);
3074 *nfs_retval = -EREMOTEIO;
3075 return false;
Benny Halevyc0eae662009-08-14 17:20:14 +03003076out_overflow:
3077 print_overflow_msg(__func__, xdr);
Trond Myklebustc7848f62013-12-04 17:39:23 -05003078 *nfs_retval = -EIO;
3079 return false;
3080}
3081
3082static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
3083{
3084 int retval;
3085
3086 __decode_op_hdr(xdr, expected, &retval);
3087 return retval;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003088}
3089
3090/* Dummy routine */
David Howellsadfa6f92006-08-22 20:06:08 -04003091static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003092{
Al Viro8687b632006-10-19 23:28:48 -07003093 __be32 *p;
Trond Myklebust683b57b2006-06-09 09:34:22 -04003094 unsigned int strlen;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003095 char *str;
3096
Benny Halevyc0eae662009-08-14 17:20:14 +03003097 p = xdr_inline_decode(xdr, 12);
3098 if (likely(p))
3099 return decode_opaque_inline(xdr, &strlen, &str);
3100 print_overflow_msg(__func__, xdr);
3101 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003102}
3103
3104static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
3105{
Al Viro8687b632006-10-19 23:28:48 -07003106 uint32_t bmlen;
3107 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003108
Benny Halevyc0eae662009-08-14 17:20:14 +03003109 p = xdr_inline_decode(xdr, 4);
3110 if (unlikely(!p))
3111 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003112 bmlen = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003113
Fred Isamandae100c2011-07-30 20:52:37 -04003114 bitmap[0] = bitmap[1] = bitmap[2] = 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003115 p = xdr_inline_decode(xdr, (bmlen << 2));
3116 if (unlikely(!p))
3117 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003118 if (bmlen > 0) {
Benny Halevy6f723f72009-08-14 17:19:37 +03003119 bitmap[0] = be32_to_cpup(p++);
Fred Isamandae100c2011-07-30 20:52:37 -04003120 if (bmlen > 1) {
3121 bitmap[1] = be32_to_cpup(p++);
3122 if (bmlen > 2)
3123 bitmap[2] = be32_to_cpup(p);
3124 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003125 }
3126 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003127out_overflow:
3128 print_overflow_msg(__func__, xdr);
3129 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003130}
3131
Trond Myklebust256e48b2012-06-21 11:18:13 -04003132static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003133{
Al Viro8687b632006-10-19 23:28:48 -07003134 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003135
Benny Halevyc0eae662009-08-14 17:20:14 +03003136 p = xdr_inline_decode(xdr, 4);
3137 if (unlikely(!p))
3138 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003139 *attrlen = be32_to_cpup(p);
Trond Myklebust256e48b2012-06-21 11:18:13 -04003140 *savep = xdr_stream_pos(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003141 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003142out_overflow:
3143 print_overflow_msg(__func__, xdr);
3144 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003145}
3146
3147static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
3148{
3149 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
Roman Borisov3388bff2010-10-13 16:54:51 +04003150 int ret;
3151 ret = decode_attr_bitmap(xdr, bitmask);
3152 if (unlikely(ret < 0))
3153 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003154 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
3155 } else
Fred Isamandae100c2011-07-30 20:52:37 -04003156 bitmask[0] = bitmask[1] = bitmask[2] = 0;
3157 dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__,
3158 bitmask[0], bitmask[1], bitmask[2]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003159 return 0;
3160}
3161
3162static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
3163{
Al Viro8687b632006-10-19 23:28:48 -07003164 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003165 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003166
3167 *type = 0;
3168 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
3169 return -EIO;
3170 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003171 p = xdr_inline_decode(xdr, 4);
3172 if (unlikely(!p))
3173 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003174 *type = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003175 if (*type < NF4REG || *type > NF4NAMEDATTR) {
Harvey Harrison3110ff82008-05-02 13:42:44 -07003176 dprintk("%s: bad type %d\n", __func__, *type);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003177 return -EIO;
3178 }
3179 bitmap[0] &= ~FATTR4_WORD0_TYPE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003180 ret = NFS_ATTR_FATTR_TYPE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003181 }
Trond Myklebustbca79472009-03-11 14:10:26 -04003182 dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]);
Trond Myklebust409924e2009-03-11 14:10:27 -04003183 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003184out_overflow:
3185 print_overflow_msg(__func__, xdr);
3186 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003187}
3188
Chuck Lever264e6352012-03-01 17:02:05 -05003189static int decode_attr_fh_expire_type(struct xdr_stream *xdr,
3190 uint32_t *bitmap, uint32_t *type)
3191{
3192 __be32 *p;
3193
3194 *type = 0;
3195 if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U)))
3196 return -EIO;
3197 if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) {
3198 p = xdr_inline_decode(xdr, 4);
3199 if (unlikely(!p))
3200 goto out_overflow;
3201 *type = be32_to_cpup(p);
3202 bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE;
3203 }
3204 dprintk("%s: expire type=0x%x\n", __func__, *type);
3205 return 0;
3206out_overflow:
3207 print_overflow_msg(__func__, xdr);
3208 return -EIO;
3209}
3210
Linus Torvalds1da177e2005-04-16 15:20:36 -07003211static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
3212{
Al Viro8687b632006-10-19 23:28:48 -07003213 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003214 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003215
3216 *change = 0;
3217 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
3218 return -EIO;
3219 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003220 p = xdr_inline_decode(xdr, 8);
3221 if (unlikely(!p))
3222 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003223 xdr_decode_hyper(p, change);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003224 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003225 ret = NFS_ATTR_FATTR_CHANGE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003226 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003227 dprintk("%s: change attribute=%Lu\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003228 (unsigned long long)*change);
Trond Myklebust409924e2009-03-11 14:10:27 -04003229 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003230out_overflow:
3231 print_overflow_msg(__func__, xdr);
3232 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003233}
3234
3235static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
3236{
Al Viro8687b632006-10-19 23:28:48 -07003237 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003238 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003239
3240 *size = 0;
3241 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
3242 return -EIO;
3243 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003244 p = xdr_inline_decode(xdr, 8);
3245 if (unlikely(!p))
3246 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003247 xdr_decode_hyper(p, size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003248 bitmap[0] &= ~FATTR4_WORD0_SIZE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003249 ret = NFS_ATTR_FATTR_SIZE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003250 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003251 dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size);
Trond Myklebust409924e2009-03-11 14:10:27 -04003252 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003253out_overflow:
3254 print_overflow_msg(__func__, xdr);
3255 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003256}
3257
3258static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3259{
Al Viro8687b632006-10-19 23:28:48 -07003260 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003261
3262 *res = 0;
3263 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
3264 return -EIO;
3265 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003266 p = xdr_inline_decode(xdr, 4);
3267 if (unlikely(!p))
3268 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003269 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003270 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
3271 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003272 dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true");
Linus Torvalds1da177e2005-04-16 15:20:36 -07003273 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003274out_overflow:
3275 print_overflow_msg(__func__, xdr);
3276 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003277}
3278
3279static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3280{
Al Viro8687b632006-10-19 23:28:48 -07003281 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003282
3283 *res = 0;
3284 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
3285 return -EIO;
3286 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003287 p = xdr_inline_decode(xdr, 4);
3288 if (unlikely(!p))
3289 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003290 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003291 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
3292 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003293 dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true");
Linus Torvalds1da177e2005-04-16 15:20:36 -07003294 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003295out_overflow:
3296 print_overflow_msg(__func__, xdr);
3297 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003298}
3299
Trond Myklebust8b4bdcf2006-06-09 09:34:19 -04003300static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003301{
Al Viro8687b632006-10-19 23:28:48 -07003302 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003303 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003304
3305 fsid->major = 0;
3306 fsid->minor = 0;
3307 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
3308 return -EIO;
3309 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003310 p = xdr_inline_decode(xdr, 16);
3311 if (unlikely(!p))
3312 goto out_overflow;
Benny Halevy3ceb4db2009-08-14 17:19:41 +03003313 p = xdr_decode_hyper(p, &fsid->major);
Benny Halevycccddf42009-08-14 17:20:19 +03003314 xdr_decode_hyper(p, &fsid->minor);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003315 bitmap[0] &= ~FATTR4_WORD0_FSID;
Trond Myklebust409924e2009-03-11 14:10:27 -04003316 ret = NFS_ATTR_FATTR_FSID;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003317 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003318 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003319 (unsigned long long)fsid->major,
3320 (unsigned long long)fsid->minor);
Trond Myklebust409924e2009-03-11 14:10:27 -04003321 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003322out_overflow:
3323 print_overflow_msg(__func__, xdr);
3324 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003325}
3326
3327static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3328{
Al Viro8687b632006-10-19 23:28:48 -07003329 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003330
3331 *res = 60;
3332 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
3333 return -EIO;
3334 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003335 p = xdr_inline_decode(xdr, 4);
3336 if (unlikely(!p))
3337 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003338 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003339 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
3340 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003341 dprintk("%s: file size=%u\n", __func__, (unsigned int)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003342 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003343out_overflow:
3344 print_overflow_msg(__func__, xdr);
3345 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003346}
3347
Trond Myklebustee7b75f2011-06-16 13:15:41 -04003348static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res)
Bryan Schumakerae42c702010-10-21 16:33:17 -04003349{
3350 __be32 *p;
3351
3352 if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U)))
3353 return -EIO;
3354 if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) {
3355 p = xdr_inline_decode(xdr, 4);
3356 if (unlikely(!p))
3357 goto out_overflow;
3358 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
Trond Myklebustee7b75f2011-06-16 13:15:41 -04003359 *res = -be32_to_cpup(p);
Bryan Schumakerae42c702010-10-21 16:33:17 -04003360 }
3361 return 0;
3362out_overflow:
3363 print_overflow_msg(__func__, xdr);
3364 return -EIO;
3365}
3366
3367static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh)
3368{
3369 __be32 *p;
3370 int len;
3371
Trond Myklebust7ad07352010-10-23 15:34:20 -04003372 if (fh != NULL)
3373 memset(fh, 0, sizeof(*fh));
Bryan Schumakerae42c702010-10-21 16:33:17 -04003374
3375 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U)))
3376 return -EIO;
3377 if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) {
3378 p = xdr_inline_decode(xdr, 4);
3379 if (unlikely(!p))
3380 goto out_overflow;
3381 len = be32_to_cpup(p);
3382 if (len > NFS4_FHSIZE)
3383 return -EIO;
Bryan Schumakerae42c702010-10-21 16:33:17 -04003384 p = xdr_inline_decode(xdr, len);
3385 if (unlikely(!p))
3386 goto out_overflow;
Trond Myklebust7ad07352010-10-23 15:34:20 -04003387 if (fh != NULL) {
3388 memcpy(fh->data, p, len);
3389 fh->size = len;
3390 }
Bryan Schumakerae42c702010-10-21 16:33:17 -04003391 bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE;
3392 }
3393 return 0;
3394out_overflow:
3395 print_overflow_msg(__func__, xdr);
3396 return -EIO;
3397}
3398
Linus Torvalds1da177e2005-04-16 15:20:36 -07003399static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3400{
Al Viro8687b632006-10-19 23:28:48 -07003401 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003402
Malahal Nainenia1800ac2014-01-27 15:31:09 -06003403 *res = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003404 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
3405 return -EIO;
3406 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003407 p = xdr_inline_decode(xdr, 4);
3408 if (unlikely(!p))
3409 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003410 *res = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003411 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
3412 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003413 dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003414 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03003415out_overflow:
3416 print_overflow_msg(__func__, xdr);
3417 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003418}
3419
3420static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3421{
Al Viro8687b632006-10-19 23:28:48 -07003422 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003423 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003424
3425 *fileid = 0;
3426 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
3427 return -EIO;
3428 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003429 p = xdr_inline_decode(xdr, 8);
3430 if (unlikely(!p))
3431 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003432 xdr_decode_hyper(p, fileid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003433 bitmap[0] &= ~FATTR4_WORD0_FILEID;
Trond Myklebust409924e2009-03-11 14:10:27 -04003434 ret = NFS_ATTR_FATTR_FILEID;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003435 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003436 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
Trond Myklebust409924e2009-03-11 14:10:27 -04003437 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003438out_overflow:
3439 print_overflow_msg(__func__, xdr);
3440 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003441}
3442
Manoj Naik99baf622006-06-09 09:34:24 -04003443static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3444{
Al Viro8687b632006-10-19 23:28:48 -07003445 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003446 int ret = 0;
Manoj Naik99baf622006-06-09 09:34:24 -04003447
3448 *fileid = 0;
3449 if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U)))
3450 return -EIO;
3451 if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003452 p = xdr_inline_decode(xdr, 8);
3453 if (unlikely(!p))
3454 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003455 xdr_decode_hyper(p, fileid);
Manoj Naik99baf622006-06-09 09:34:24 -04003456 bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
Trond Myklebust28331a42011-04-27 13:47:52 -04003457 ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID;
Manoj Naik99baf622006-06-09 09:34:24 -04003458 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003459 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
Trond Myklebust409924e2009-03-11 14:10:27 -04003460 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003461out_overflow:
3462 print_overflow_msg(__func__, xdr);
3463 return -EIO;
Manoj Naik99baf622006-06-09 09:34:24 -04003464}
3465
Linus Torvalds1da177e2005-04-16 15:20:36 -07003466static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3467{
Al Viro8687b632006-10-19 23:28:48 -07003468 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003469 int status = 0;
3470
3471 *res = 0;
3472 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
3473 return -EIO;
3474 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003475 p = xdr_inline_decode(xdr, 8);
3476 if (unlikely(!p))
3477 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003478 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003479 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
3480 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003481 dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003482 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003483out_overflow:
3484 print_overflow_msg(__func__, xdr);
3485 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003486}
3487
3488static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3489{
Al Viro8687b632006-10-19 23:28:48 -07003490 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003491 int status = 0;
3492
3493 *res = 0;
3494 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
3495 return -EIO;
3496 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003497 p = xdr_inline_decode(xdr, 8);
3498 if (unlikely(!p))
3499 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003500 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003501 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
3502 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003503 dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003504 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003505out_overflow:
3506 print_overflow_msg(__func__, xdr);
3507 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003508}
3509
3510static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3511{
Al Viro8687b632006-10-19 23:28:48 -07003512 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003513 int status = 0;
3514
3515 *res = 0;
3516 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
3517 return -EIO;
3518 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003519 p = xdr_inline_decode(xdr, 8);
3520 if (unlikely(!p))
3521 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003522 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003523 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
3524 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003525 dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003526 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003527out_overflow:
3528 print_overflow_msg(__func__, xdr);
3529 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003530}
3531
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003532static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
3533{
Chuck Lever464ad6b2007-10-26 13:32:08 -04003534 u32 n;
Al Viro8687b632006-10-19 23:28:48 -07003535 __be32 *p;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003536 int status = 0;
3537
Benny Halevyc0eae662009-08-14 17:20:14 +03003538 p = xdr_inline_decode(xdr, 4);
3539 if (unlikely(!p))
3540 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003541 n = be32_to_cpup(p);
Andy Adamson33a43f22006-06-09 09:34:30 -04003542 if (n == 0)
3543 goto root_path;
Chuck Lever02a29762012-03-01 17:00:31 -05003544 dprintk("pathname4: ");
Trond Myklebust809b4262013-03-27 11:54:45 -04003545 if (n > NFS4_PATHNAME_MAXCOMPONENTS) {
3546 dprintk("cannot parse %d components in path\n", n);
3547 goto out_eio;
3548 }
3549 for (path->ncomponents = 0; path->ncomponents < n; path->ncomponents++) {
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003550 struct nfs4_string *component = &path->components[path->ncomponents];
3551 status = decode_opaque_inline(xdr, &component->len, &component->data);
3552 if (unlikely(status != 0))
3553 goto out_eio;
Trond Myklebust95a13f72012-03-14 21:55:01 -04003554 ifdebug (XDR)
Chuck Lever02a29762012-03-01 17:00:31 -05003555 pr_cont("%s%.*s ",
3556 (path->ncomponents != n ? "/ " : ""),
3557 component->len, component->data);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003558 }
3559out:
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003560 return status;
Andy Adamson33a43f22006-06-09 09:34:30 -04003561root_path:
3562/* a root pathname is sent as a zero component4 */
3563 path->ncomponents = 1;
3564 path->components[0].len=0;
3565 path->components[0].data=NULL;
Chuck Lever02a29762012-03-01 17:00:31 -05003566 dprintk("pathname4: /\n");
Andy Adamson33a43f22006-06-09 09:34:30 -04003567 goto out;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003568out_eio:
3569 dprintk(" status %d", status);
3570 status = -EIO;
3571 goto out;
Benny Halevyc0eae662009-08-14 17:20:14 +03003572out_overflow:
3573 print_overflow_msg(__func__, xdr);
3574 return -EIO;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003575}
3576
3577static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
Trond Myklebust683b57b2006-06-09 09:34:22 -04003578{
3579 int n;
Al Viro8687b632006-10-19 23:28:48 -07003580 __be32 *p;
Trond Myklebust683b57b2006-06-09 09:34:22 -04003581 int status = -EIO;
3582
3583 if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U)))
3584 goto out;
3585 status = 0;
3586 if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS)))
3587 goto out;
Trond Myklebust8b7e3f42012-01-30 15:43:56 -05003588 status = -EIO;
3589 /* Ignore borken servers that return unrequested attrs */
3590 if (unlikely(res == NULL))
3591 goto out;
Chuck Lever02a29762012-03-01 17:00:31 -05003592 dprintk("%s: fsroot:\n", __func__);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003593 status = decode_pathname(xdr, &res->fs_path);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003594 if (unlikely(status != 0))
3595 goto out;
Benny Halevyc0eae662009-08-14 17:20:14 +03003596 p = xdr_inline_decode(xdr, 4);
3597 if (unlikely(!p))
3598 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003599 n = be32_to_cpup(p);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003600 if (n <= 0)
3601 goto out_eio;
Trond Myklebust809b4262013-03-27 11:54:45 -04003602 for (res->nlocations = 0; res->nlocations < n; res->nlocations++) {
Chuck Lever464ad6b2007-10-26 13:32:08 -04003603 u32 m;
Trond Myklebust809b4262013-03-27 11:54:45 -04003604 struct nfs4_fs_location *loc;
Trond Myklebust683b57b2006-06-09 09:34:22 -04003605
Trond Myklebust809b4262013-03-27 11:54:45 -04003606 if (res->nlocations == NFS4_FS_LOCATIONS_MAXENTRIES)
3607 break;
3608 loc = &res->locations[res->nlocations];
Benny Halevyc0eae662009-08-14 17:20:14 +03003609 p = xdr_inline_decode(xdr, 4);
3610 if (unlikely(!p))
3611 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003612 m = be32_to_cpup(p);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003613
Chuck Lever02a29762012-03-01 17:00:31 -05003614 dprintk("%s: servers:\n", __func__);
Trond Myklebust809b4262013-03-27 11:54:45 -04003615 for (loc->nservers = 0; loc->nservers < m; loc->nservers++) {
3616 struct nfs4_string *server;
3617
3618 if (loc->nservers == NFS4_FS_LOCATION_MAXSERVERS) {
Chuck Lever464ad6b2007-10-26 13:32:08 -04003619 unsigned int i;
3620 dprintk("%s: using first %u of %u servers "
3621 "returned for location %u\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003622 __func__,
Chuck Lever464ad6b2007-10-26 13:32:08 -04003623 NFS4_FS_LOCATION_MAXSERVERS,
3624 m, res->nlocations);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003625 for (i = loc->nservers; i < m; i++) {
Trond Myklebust2e42c3e2007-05-14 17:20:41 -04003626 unsigned int len;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003627 char *data;
3628 status = decode_opaque_inline(xdr, &len, &data);
3629 if (unlikely(status != 0))
3630 goto out_eio;
3631 }
Trond Myklebust809b4262013-03-27 11:54:45 -04003632 break;
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003633 }
Trond Myklebust809b4262013-03-27 11:54:45 -04003634 server = &loc->servers[loc->nservers];
3635 status = decode_opaque_inline(xdr, &server->len, &server->data);
3636 if (unlikely(status != 0))
3637 goto out_eio;
3638 dprintk("%s ", server->data);
Manoj Naik7aaa0b32006-06-09 09:34:23 -04003639 }
3640 status = decode_pathname(xdr, &loc->rootpath);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003641 if (unlikely(status != 0))
3642 goto out_eio;
Trond Myklebust683b57b2006-06-09 09:34:22 -04003643 }
Trond Myklebust409924e2009-03-11 14:10:27 -04003644 if (res->nlocations != 0)
Chuck Lever81934dd2012-03-01 17:01:57 -05003645 status = NFS_ATTR_FATTR_V4_LOCATIONS;
Trond Myklebust683b57b2006-06-09 09:34:22 -04003646out:
Harvey Harrison3110ff82008-05-02 13:42:44 -07003647 dprintk("%s: fs_locations done, error = %d\n", __func__, status);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003648 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003649out_overflow:
3650 print_overflow_msg(__func__, xdr);
Trond Myklebust683b57b2006-06-09 09:34:22 -04003651out_eio:
3652 status = -EIO;
3653 goto out;
3654}
3655
Linus Torvalds1da177e2005-04-16 15:20:36 -07003656static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3657{
Al Viro8687b632006-10-19 23:28:48 -07003658 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003659 int status = 0;
3660
3661 *res = 0;
3662 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
3663 return -EIO;
3664 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003665 p = xdr_inline_decode(xdr, 8);
3666 if (unlikely(!p))
3667 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003668 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003669 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
3670 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003671 dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003672 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003673out_overflow:
3674 print_overflow_msg(__func__, xdr);
3675 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003676}
3677
3678static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
3679{
Al Viro8687b632006-10-19 23:28:48 -07003680 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003681 int status = 0;
3682
3683 *maxlink = 1;
3684 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
3685 return -EIO;
3686 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003687 p = xdr_inline_decode(xdr, 4);
3688 if (unlikely(!p))
3689 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003690 *maxlink = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003691 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
3692 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003693 dprintk("%s: maxlink=%u\n", __func__, *maxlink);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003694 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003695out_overflow:
3696 print_overflow_msg(__func__, xdr);
3697 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003698}
3699
3700static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
3701{
Al Viro8687b632006-10-19 23:28:48 -07003702 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003703 int status = 0;
3704
3705 *maxname = 1024;
3706 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
3707 return -EIO;
3708 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003709 p = xdr_inline_decode(xdr, 4);
3710 if (unlikely(!p))
3711 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003712 *maxname = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003713 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
3714 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003715 dprintk("%s: maxname=%u\n", __func__, *maxname);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003716 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003717out_overflow:
3718 print_overflow_msg(__func__, xdr);
3719 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003720}
3721
3722static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3723{
Al Viro8687b632006-10-19 23:28:48 -07003724 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003725 int status = 0;
3726
3727 *res = 1024;
3728 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
3729 return -EIO;
3730 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
3731 uint64_t maxread;
Benny Halevyc0eae662009-08-14 17:20:14 +03003732 p = xdr_inline_decode(xdr, 8);
3733 if (unlikely(!p))
3734 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003735 xdr_decode_hyper(p, &maxread);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003736 if (maxread > 0x7FFFFFFF)
3737 maxread = 0x7FFFFFFF;
3738 *res = (uint32_t)maxread;
3739 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
3740 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003741 dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003742 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003743out_overflow:
3744 print_overflow_msg(__func__, xdr);
3745 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003746}
3747
3748static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3749{
Al Viro8687b632006-10-19 23:28:48 -07003750 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003751 int status = 0;
3752
3753 *res = 1024;
3754 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
3755 return -EIO;
3756 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
3757 uint64_t maxwrite;
Benny Halevyc0eae662009-08-14 17:20:14 +03003758 p = xdr_inline_decode(xdr, 8);
3759 if (unlikely(!p))
3760 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003761 xdr_decode_hyper(p, &maxwrite);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003762 if (maxwrite > 0x7FFFFFFF)
3763 maxwrite = 0x7FFFFFFF;
3764 *res = (uint32_t)maxwrite;
3765 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
3766 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003767 dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003768 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003769out_overflow:
3770 print_overflow_msg(__func__, xdr);
3771 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003772}
3773
Trond Myklebustbca79472009-03-11 14:10:26 -04003774static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003775{
Trond Myklebustbca79472009-03-11 14:10:26 -04003776 uint32_t tmp;
Al Viro8687b632006-10-19 23:28:48 -07003777 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003778 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003779
3780 *mode = 0;
3781 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
3782 return -EIO;
3783 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003784 p = xdr_inline_decode(xdr, 4);
3785 if (unlikely(!p))
3786 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003787 tmp = be32_to_cpup(p);
Trond Myklebustbca79472009-03-11 14:10:26 -04003788 *mode = tmp & ~S_IFMT;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003789 bitmap[1] &= ~FATTR4_WORD1_MODE;
Trond Myklebust409924e2009-03-11 14:10:27 -04003790 ret = NFS_ATTR_FATTR_MODE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003791 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003792 dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode);
Trond Myklebust409924e2009-03-11 14:10:27 -04003793 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003794out_overflow:
3795 print_overflow_msg(__func__, xdr);
3796 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003797}
3798
3799static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
3800{
Al Viro8687b632006-10-19 23:28:48 -07003801 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003802 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003803
3804 *nlink = 1;
3805 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
3806 return -EIO;
3807 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003808 p = xdr_inline_decode(xdr, 4);
3809 if (unlikely(!p))
3810 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003811 *nlink = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003812 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
Trond Myklebust409924e2009-03-11 14:10:27 -04003813 ret = NFS_ATTR_FATTR_NLINK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003814 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003815 dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink);
Trond Myklebust409924e2009-03-11 14:10:27 -04003816 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003817out_overflow:
3818 print_overflow_msg(__func__, xdr);
3819 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003820}
3821
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003822static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
Eric W. Biedermane5782072013-02-01 14:22:02 -08003823 const struct nfs_server *server, kuid_t *uid,
Trond Myklebust6926afd2012-01-07 13:22:46 -05003824 struct nfs4_string *owner_name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003825{
Al Viro8687b632006-10-19 23:28:48 -07003826 uint32_t len;
3827 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003828 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003829
Eric W. Biedermane5782072013-02-01 14:22:02 -08003830 *uid = make_kuid(&init_user_ns, -2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003831 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
3832 return -EIO;
3833 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
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 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003838 p = xdr_inline_decode(xdr, len);
3839 if (unlikely(!p))
3840 goto out_overflow;
Trond Myklebust6926afd2012-01-07 13:22:46 -05003841 if (owner_name != NULL) {
3842 owner_name->data = kmemdup(p, len, GFP_NOWAIT);
3843 if (owner_name->data != NULL) {
3844 owner_name->len = len;
3845 ret = NFS_ATTR_FATTR_OWNER_NAME;
3846 }
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003847 } else if (len < XDR_MAX_NETOBJ) {
Trond Myklebuste4fd72a2011-02-22 15:44:31 -08003848 if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0)
Trond Myklebust409924e2009-03-11 14:10:27 -04003849 ret = NFS_ATTR_FATTR_OWNER;
3850 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07003851 dprintk("%s: nfs_map_name_to_uid failed!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003852 __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003853 } else
Chuck Leverfe82a182007-09-11 18:01:10 -04003854 dprintk("%s: name too long (%u)!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003855 __func__, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003856 bitmap[1] &= ~FATTR4_WORD1_OWNER;
3857 }
Eric W. Biedermane5782072013-02-01 14:22:02 -08003858 dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid));
Trond Myklebust409924e2009-03-11 14:10:27 -04003859 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003860out_overflow:
3861 print_overflow_msg(__func__, xdr);
3862 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003863}
3864
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003865static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
Eric W. Biedermane5782072013-02-01 14:22:02 -08003866 const struct nfs_server *server, kgid_t *gid,
Trond Myklebust6926afd2012-01-07 13:22:46 -05003867 struct nfs4_string *group_name)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003868{
Al Viro8687b632006-10-19 23:28:48 -07003869 uint32_t len;
3870 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003871 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003872
Eric W. Biedermane5782072013-02-01 14:22:02 -08003873 *gid = make_kgid(&init_user_ns, -2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003874 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
3875 return -EIO;
3876 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003877 p = xdr_inline_decode(xdr, 4);
3878 if (unlikely(!p))
3879 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003880 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03003881 p = xdr_inline_decode(xdr, len);
3882 if (unlikely(!p))
3883 goto out_overflow;
Trond Myklebust6926afd2012-01-07 13:22:46 -05003884 if (group_name != NULL) {
3885 group_name->data = kmemdup(p, len, GFP_NOWAIT);
3886 if (group_name->data != NULL) {
3887 group_name->len = len;
3888 ret = NFS_ATTR_FATTR_GROUP_NAME;
3889 }
Trond Myklebust80e52ac2009-08-09 15:06:19 -04003890 } else if (len < XDR_MAX_NETOBJ) {
Trond Myklebuste4fd72a2011-02-22 15:44:31 -08003891 if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0)
Trond Myklebust409924e2009-03-11 14:10:27 -04003892 ret = NFS_ATTR_FATTR_GROUP;
3893 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07003894 dprintk("%s: nfs_map_group_to_gid failed!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003895 __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003896 } else
Chuck Leverfe82a182007-09-11 18:01:10 -04003897 dprintk("%s: name too long (%u)!\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07003898 __func__, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003899 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
3900 }
Eric W. Biedermane5782072013-02-01 14:22:02 -08003901 dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid));
Trond Myklebust409924e2009-03-11 14:10:27 -04003902 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003903out_overflow:
3904 print_overflow_msg(__func__, xdr);
3905 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003906}
3907
3908static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
3909{
Al Viro8687b632006-10-19 23:28:48 -07003910 uint32_t major = 0, minor = 0;
3911 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04003912 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003913
3914 *rdev = MKDEV(0,0);
3915 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
3916 return -EIO;
3917 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
3918 dev_t tmp;
3919
Benny Halevyc0eae662009-08-14 17:20:14 +03003920 p = xdr_inline_decode(xdr, 8);
3921 if (unlikely(!p))
3922 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03003923 major = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03003924 minor = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003925 tmp = MKDEV(major, minor);
3926 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
3927 *rdev = tmp;
3928 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
Trond Myklebust409924e2009-03-11 14:10:27 -04003929 ret = NFS_ATTR_FATTR_RDEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003930 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003931 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor);
Trond Myklebust409924e2009-03-11 14:10:27 -04003932 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03003933out_overflow:
3934 print_overflow_msg(__func__, xdr);
3935 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003936}
3937
3938static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3939{
Al Viro8687b632006-10-19 23:28:48 -07003940 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003941 int status = 0;
3942
3943 *res = 0;
3944 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
3945 return -EIO;
3946 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003947 p = xdr_inline_decode(xdr, 8);
3948 if (unlikely(!p))
3949 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003950 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003951 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
3952 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003953 dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003954 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003955out_overflow:
3956 print_overflow_msg(__func__, xdr);
3957 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003958}
3959
3960static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3961{
Al Viro8687b632006-10-19 23:28:48 -07003962 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003963 int status = 0;
3964
3965 *res = 0;
3966 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
3967 return -EIO;
3968 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003969 p = xdr_inline_decode(xdr, 8);
3970 if (unlikely(!p))
3971 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003972 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003973 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
3974 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003975 dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003976 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003977out_overflow:
3978 print_overflow_msg(__func__, xdr);
3979 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003980}
3981
3982static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3983{
Al Viro8687b632006-10-19 23:28:48 -07003984 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003985 int status = 0;
3986
3987 *res = 0;
3988 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
3989 return -EIO;
3990 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03003991 p = xdr_inline_decode(xdr, 8);
3992 if (unlikely(!p))
3993 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03003994 xdr_decode_hyper(p, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003995 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
3996 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07003997 dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003998 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03003999out_overflow:
4000 print_overflow_msg(__func__, xdr);
4001 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004002}
4003
4004static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
4005{
Al Viro8687b632006-10-19 23:28:48 -07004006 __be32 *p;
Trond Myklebust409924e2009-03-11 14:10:27 -04004007 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004008
4009 *used = 0;
4010 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
4011 return -EIO;
4012 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
Benny Halevyc0eae662009-08-14 17:20:14 +03004013 p = xdr_inline_decode(xdr, 8);
4014 if (unlikely(!p))
4015 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004016 xdr_decode_hyper(p, used);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004017 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
Trond Myklebust409924e2009-03-11 14:10:27 -04004018 ret = NFS_ATTR_FATTR_SPACE_USED;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004019 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07004020 dprintk("%s: space used=%Lu\n", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07004021 (unsigned long long)*used);
Trond Myklebust409924e2009-03-11 14:10:27 -04004022 return ret;
Benny Halevyc0eae662009-08-14 17:20:14 +03004023out_overflow:
4024 print_overflow_msg(__func__, xdr);
4025 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004026}
4027
4028static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
4029{
Al Viro8687b632006-10-19 23:28:48 -07004030 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004031 uint64_t sec;
4032 uint32_t nsec;
4033
Benny Halevyc0eae662009-08-14 17:20:14 +03004034 p = xdr_inline_decode(xdr, 12);
4035 if (unlikely(!p))
4036 goto out_overflow;
Benny Halevy3ceb4db2009-08-14 17:19:41 +03004037 p = xdr_decode_hyper(p, &sec);
Benny Halevycccddf42009-08-14 17:20:19 +03004038 nsec = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004039 time->tv_sec = (time_t)sec;
4040 time->tv_nsec = (long)nsec;
4041 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004042out_overflow:
4043 print_overflow_msg(__func__, xdr);
4044 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004045}
4046
4047static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4048{
4049 int status = 0;
4050
4051 time->tv_sec = 0;
4052 time->tv_nsec = 0;
4053 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
4054 return -EIO;
4055 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
4056 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04004057 if (status == 0)
4058 status = NFS_ATTR_FATTR_ATIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004059 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
4060 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07004061 dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004062 return status;
4063}
4064
4065static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4066{
4067 int status = 0;
4068
4069 time->tv_sec = 0;
4070 time->tv_nsec = 0;
4071 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
4072 return -EIO;
4073 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
4074 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04004075 if (status == 0)
4076 status = NFS_ATTR_FATTR_CTIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004077 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
4078 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07004079 dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004080 return status;
4081}
4082
Ricardo Labiaga55b6e772010-10-12 16:30:06 -07004083static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap,
4084 struct timespec *time)
4085{
4086 int status = 0;
4087
4088 time->tv_sec = 0;
4089 time->tv_nsec = 0;
4090 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U)))
4091 return -EIO;
4092 if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) {
4093 status = decode_attr_time(xdr, time);
4094 bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA;
4095 }
4096 dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec,
4097 (long)time->tv_nsec);
4098 return status;
4099}
4100
David Quigleyaa9c2662013-05-22 12:50:44 -04004101static int decode_attr_security_label(struct xdr_stream *xdr, uint32_t *bitmap,
4102 struct nfs4_label *label)
4103{
4104 uint32_t pi = 0;
4105 uint32_t lfs = 0;
4106 __u32 len;
4107 __be32 *p;
4108 int status = 0;
4109
4110 if (unlikely(bitmap[2] & (FATTR4_WORD2_SECURITY_LABEL - 1U)))
4111 return -EIO;
4112 if (likely(bitmap[2] & FATTR4_WORD2_SECURITY_LABEL)) {
4113 p = xdr_inline_decode(xdr, 4);
4114 if (unlikely(!p))
4115 goto out_overflow;
4116 lfs = be32_to_cpup(p++);
4117 p = xdr_inline_decode(xdr, 4);
4118 if (unlikely(!p))
4119 goto out_overflow;
4120 pi = be32_to_cpup(p++);
4121 p = xdr_inline_decode(xdr, 4);
4122 if (unlikely(!p))
4123 goto out_overflow;
4124 len = be32_to_cpup(p++);
4125 p = xdr_inline_decode(xdr, len);
4126 if (unlikely(!p))
4127 goto out_overflow;
4128 if (len < NFS4_MAXLABELLEN) {
4129 if (label) {
4130 memcpy(label->label, p, len);
4131 label->len = len;
4132 label->pi = pi;
4133 label->lfs = lfs;
4134 status = NFS_ATTR_FATTR_V4_SECURITY_LABEL;
4135 }
4136 bitmap[2] &= ~FATTR4_WORD2_SECURITY_LABEL;
4137 } else
4138 printk(KERN_WARNING "%s: label too long (%u)!\n",
4139 __func__, len);
4140 }
4141 if (label && label->label)
4142 dprintk("%s: label=%s, len=%d, PI=%d, LFS=%d\n", __func__,
4143 (char *)label->label, label->len, label->pi, label->lfs);
4144 return status;
4145
4146out_overflow:
4147 print_overflow_msg(__func__, xdr);
4148 return -EIO;
4149}
4150
Linus Torvalds1da177e2005-04-16 15:20:36 -07004151static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4152{
4153 int status = 0;
4154
4155 time->tv_sec = 0;
4156 time->tv_nsec = 0;
4157 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
4158 return -EIO;
4159 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
4160 status = decode_attr_time(xdr, time);
Trond Myklebust409924e2009-03-11 14:10:27 -04004161 if (status == 0)
4162 status = NFS_ATTR_FATTR_MTIME;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004163 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
4164 }
Harvey Harrison3110ff82008-05-02 13:42:44 -07004165 dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004166 return status;
4167}
4168
Trond Myklebust256e48b2012-06-21 11:18:13 -04004169static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004170{
4171 unsigned int attrwords = XDR_QUADLEN(attrlen);
Trond Myklebust256e48b2012-06-21 11:18:13 -04004172 unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004173
4174 if (unlikely(attrwords != nwords)) {
Chuck Leverfe82a182007-09-11 18:01:10 -04004175 dprintk("%s: server returned incorrect attribute length: "
4176 "%u %c %u\n",
Harvey Harrison3110ff82008-05-02 13:42:44 -07004177 __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07004178 attrwords << 2,
4179 (attrwords < nwords) ? '<' : '>',
4180 nwords << 2);
4181 return -EIO;
4182 }
4183 return 0;
4184}
4185
4186static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4187{
Al Viro8687b632006-10-19 23:28:48 -07004188 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004189
Benny Halevyc0eae662009-08-14 17:20:14 +03004190 p = xdr_inline_decode(xdr, 20);
4191 if (unlikely(!p))
4192 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004193 cinfo->atomic = be32_to_cpup(p++);
Benny Halevy3ceb4db2009-08-14 17:19:41 +03004194 p = xdr_decode_hyper(p, &cinfo->before);
Benny Halevycccddf42009-08-14 17:20:19 +03004195 xdr_decode_hyper(p, &cinfo->after);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004196 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004197out_overflow:
4198 print_overflow_msg(__func__, xdr);
4199 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004200}
4201
Weston Andros Adamson6168f622012-09-10 14:00:46 -04004202static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004203{
Al Viro8687b632006-10-19 23:28:48 -07004204 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004205 uint32_t supp, acc;
4206 int status;
4207
4208 status = decode_op_hdr(xdr, OP_ACCESS);
4209 if (status)
4210 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004211 p = xdr_inline_decode(xdr, 8);
4212 if (unlikely(!p))
4213 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004214 supp = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004215 acc = be32_to_cpup(p);
Weston Andros Adamson6168f622012-09-10 14:00:46 -04004216 *supported = supp;
4217 *access = acc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004218 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004219out_overflow:
4220 print_overflow_msg(__func__, xdr);
4221 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004222}
4223
Benny Halevy07d30432009-08-14 17:19:52 +03004224static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004225{
Al Viro8687b632006-10-19 23:28:48 -07004226 __be32 *p;
Benny Halevy07d30432009-08-14 17:19:52 +03004227
4228 p = xdr_inline_decode(xdr, len);
4229 if (likely(p)) {
4230 memcpy(buf, p, len);
4231 return 0;
4232 }
4233 print_overflow_msg(__func__, xdr);
4234 return -EIO;
4235}
4236
4237static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
4238{
Trond Myklebust2d2f24a2012-03-04 18:13:57 -05004239 return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004240}
4241
4242static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
4243{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004244 int status;
4245
4246 status = decode_op_hdr(xdr, OP_CLOSE);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004247 if (status != -EIO)
4248 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004249 if (!status)
4250 status = decode_stateid(xdr, &res->stateid);
4251 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004252}
4253
Benny Halevydb942bb2009-08-14 17:19:56 +03004254static int decode_verifier(struct xdr_stream *xdr, void *verifier)
4255{
Chuck Levercd937102012-03-02 17:14:31 -05004256 return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004257}
4258
Trond Myklebust2f2c63b2012-06-08 11:56:09 -04004259static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier)
4260{
4261 return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE);
4262}
4263
Fred Isaman0b7c0152012-04-20 14:47:39 -04004264static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004265{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004266 int status;
4267
4268 status = decode_op_hdr(xdr, OP_COMMIT);
Benny Halevydb942bb2009-08-14 17:19:56 +03004269 if (!status)
Trond Myklebust2f2c63b2012-06-08 11:56:09 -04004270 status = decode_write_verifier(xdr, &res->verf->verifier);
Benny Halevydb942bb2009-08-14 17:19:56 +03004271 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004272}
4273
4274static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4275{
Al Viro8687b632006-10-19 23:28:48 -07004276 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004277 uint32_t bmlen;
4278 int status;
4279
4280 status = decode_op_hdr(xdr, OP_CREATE);
4281 if (status)
4282 return status;
4283 if ((status = decode_change_info(xdr, cinfo)))
4284 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004285 p = xdr_inline_decode(xdr, 4);
4286 if (unlikely(!p))
4287 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004288 bmlen = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03004289 p = xdr_inline_decode(xdr, bmlen << 2);
4290 if (likely(p))
4291 return 0;
4292out_overflow:
4293 print_overflow_msg(__func__, xdr);
4294 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004295}
4296
4297static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
4298{
Trond Myklebust256e48b2012-06-21 11:18:13 -04004299 unsigned int savep;
Fred Isamandae100c2011-07-30 20:52:37 -04004300 uint32_t attrlen, bitmap[3] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07004301 int status;
4302
4303 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4304 goto xdr_error;
4305 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4306 goto xdr_error;
4307 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4308 goto xdr_error;
4309 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
4310 goto xdr_error;
Chuck Lever264e6352012-03-01 17:02:05 -05004311 if ((status = decode_attr_fh_expire_type(xdr, bitmap,
4312 &res->fh_expire_type)) != 0)
4313 goto xdr_error;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004314 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
4315 goto xdr_error;
4316 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
4317 goto xdr_error;
4318 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
4319 goto xdr_error;
4320 status = verify_attr_len(xdr, savep, attrlen);
4321xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004322 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004323 return status;
4324}
Andy Adamson6c0195a2008-12-23 16:06:15 -05004325
Linus Torvalds1da177e2005-04-16 15:20:36 -07004326static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
4327{
Trond Myklebust256e48b2012-06-21 11:18:13 -04004328 unsigned int savep;
Fred Isamandae100c2011-07-30 20:52:37 -04004329 uint32_t attrlen, bitmap[3] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07004330 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004331
Linus Torvalds1da177e2005-04-16 15:20:36 -07004332 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4333 goto xdr_error;
4334 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4335 goto xdr_error;
4336 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4337 goto xdr_error;
4338
4339 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
4340 goto xdr_error;
4341 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
4342 goto xdr_error;
4343 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
4344 goto xdr_error;
4345 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
4346 goto xdr_error;
4347 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
4348 goto xdr_error;
4349 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
4350 goto xdr_error;
4351
4352 status = verify_attr_len(xdr, savep, attrlen);
4353xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004354 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004355 return status;
4356}
4357
4358static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
4359{
Trond Myklebust256e48b2012-06-21 11:18:13 -04004360 unsigned int savep;
Fred Isamandae100c2011-07-30 20:52:37 -04004361 uint32_t attrlen, bitmap[3] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07004362 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004363
Linus Torvalds1da177e2005-04-16 15:20:36 -07004364 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4365 goto xdr_error;
4366 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4367 goto xdr_error;
4368 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4369 goto xdr_error;
4370
4371 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
4372 goto xdr_error;
4373 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
4374 goto xdr_error;
4375
4376 status = verify_attr_len(xdr, savep, attrlen);
4377xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004378 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004379 return status;
4380}
4381
Andy Adamson88034c32012-05-23 05:02:34 -04004382static int decode_threshold_hint(struct xdr_stream *xdr,
4383 uint32_t *bitmap,
4384 uint64_t *res,
4385 uint32_t hint_bit)
4386{
4387 __be32 *p;
4388
4389 *res = 0;
4390 if (likely(bitmap[0] & hint_bit)) {
4391 p = xdr_inline_decode(xdr, 8);
4392 if (unlikely(!p))
4393 goto out_overflow;
4394 xdr_decode_hyper(p, res);
4395 }
4396 return 0;
4397out_overflow:
4398 print_overflow_msg(__func__, xdr);
4399 return -EIO;
4400}
4401
4402static int decode_first_threshold_item4(struct xdr_stream *xdr,
4403 struct nfs4_threshold *res)
4404{
Trond Myklebust256e48b2012-06-21 11:18:13 -04004405 __be32 *p;
4406 unsigned int savep;
Andy Adamson88034c32012-05-23 05:02:34 -04004407 uint32_t bitmap[3] = {0,}, attrlen;
4408 int status;
4409
4410 /* layout type */
4411 p = xdr_inline_decode(xdr, 4);
4412 if (unlikely(!p)) {
4413 print_overflow_msg(__func__, xdr);
4414 return -EIO;
4415 }
4416 res->l_type = be32_to_cpup(p);
4417
4418 /* thi_hintset bitmap */
4419 status = decode_attr_bitmap(xdr, bitmap);
4420 if (status < 0)
4421 goto xdr_error;
4422
4423 /* thi_hintlist length */
4424 status = decode_attr_length(xdr, &attrlen, &savep);
4425 if (status < 0)
4426 goto xdr_error;
4427 /* thi_hintlist */
4428 status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD);
4429 if (status < 0)
4430 goto xdr_error;
4431 status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR);
4432 if (status < 0)
4433 goto xdr_error;
4434 status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz,
4435 THRESHOLD_RD_IO);
4436 if (status < 0)
4437 goto xdr_error;
4438 status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz,
4439 THRESHOLD_WR_IO);
4440 if (status < 0)
4441 goto xdr_error;
4442
4443 status = verify_attr_len(xdr, savep, attrlen);
4444 res->bm = bitmap[0];
4445
4446 dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n",
4447 __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz,
4448 res->wr_io_sz);
4449xdr_error:
4450 dprintk("%s ret=%d!\n", __func__, status);
4451 return status;
4452}
4453
4454/*
4455 * Thresholds on pNFS direct I/O vrs MDS I/O
4456 */
4457static int decode_attr_mdsthreshold(struct xdr_stream *xdr,
4458 uint32_t *bitmap,
4459 struct nfs4_threshold *res)
4460{
4461 __be32 *p;
4462 int status = 0;
4463 uint32_t num;
4464
4465 if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U)))
4466 return -EIO;
Trond Myklebust029c5342012-06-05 09:35:44 -04004467 if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) {
Trond Myklebust1549210f2012-06-05 09:16:47 -04004468 /* Did the server return an unrequested attribute? */
4469 if (unlikely(res == NULL))
4470 return -EREMOTEIO;
Andy Adamson88034c32012-05-23 05:02:34 -04004471 p = xdr_inline_decode(xdr, 4);
4472 if (unlikely(!p))
4473 goto out_overflow;
4474 num = be32_to_cpup(p);
4475 if (num == 0)
4476 return 0;
4477 if (num > 1)
4478 printk(KERN_INFO "%s: Warning: Multiple pNFS layout "
4479 "drivers per filesystem not supported\n",
4480 __func__);
4481
4482 status = decode_first_threshold_item4(xdr, res);
Trond Myklebust029c5342012-06-05 09:35:44 -04004483 bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD;
Andy Adamson88034c32012-05-23 05:02:34 -04004484 }
4485 return status;
4486out_overflow:
4487 print_overflow_msg(__func__, xdr);
4488 return -EIO;
4489}
4490
Bryan Schumakerae42c702010-10-21 16:33:17 -04004491static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap,
4492 struct nfs_fattr *fattr, struct nfs_fh *fh,
David Quigleyaa9c2662013-05-22 12:50:44 -04004493 struct nfs4_fs_locations *fs_loc, struct nfs4_label *label,
Trond Myklebust6926afd2012-01-07 13:22:46 -05004494 const struct nfs_server *server)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004495{
Trond Myklebustbca79472009-03-11 14:10:26 -04004496 int status;
4497 umode_t fmode = 0;
Bryan Schumakerae42c702010-10-21 16:33:17 -04004498 uint32_t type;
Trond Myklebustee7b75f2011-06-16 13:15:41 -04004499 int32_t err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004500
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004501 status = decode_attr_type(xdr, bitmap, &type);
4502 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004503 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004504 fattr->mode = 0;
4505 if (status != 0) {
4506 fattr->mode |= nfs_type2fmt[type];
4507 fattr->valid |= status;
4508 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004509
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004510 status = decode_attr_change(xdr, bitmap, &fattr->change_attr);
4511 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004512 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004513 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004514
4515 status = decode_attr_size(xdr, bitmap, &fattr->size);
4516 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004517 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004518 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004519
4520 status = decode_attr_fsid(xdr, bitmap, &fattr->fsid);
4521 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004522 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004523 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004524
Trond Myklebustee7b75f2011-06-16 13:15:41 -04004525 err = 0;
4526 status = decode_attr_error(xdr, bitmap, &err);
Bryan Schumakerae42c702010-10-21 16:33:17 -04004527 if (status < 0)
4528 goto xdr_error;
4529
4530 status = decode_attr_filehandle(xdr, bitmap, fh);
4531 if (status < 0)
4532 goto xdr_error;
4533
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004534 status = decode_attr_fileid(xdr, bitmap, &fattr->fileid);
4535 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004536 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004537 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004538
Trond Myklebust8b7e3f42012-01-30 15:43:56 -05004539 status = decode_attr_fs_locations(xdr, bitmap, fs_loc);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004540 if (status < 0)
Trond Myklebust683b57b2006-06-09 09:34:22 -04004541 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004542 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004543
4544 status = decode_attr_mode(xdr, bitmap, &fmode);
4545 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004546 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004547 if (status != 0) {
4548 fattr->mode |= fmode;
4549 fattr->valid |= status;
4550 }
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004551
4552 status = decode_attr_nlink(xdr, bitmap, &fattr->nlink);
4553 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004554 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004555 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004556
Trond Myklebust6926afd2012-01-07 13:22:46 -05004557 status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004558 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004559 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004560 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004561
Trond Myklebust6926afd2012-01-07 13:22:46 -05004562 status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004563 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004564 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004565 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004566
4567 status = decode_attr_rdev(xdr, bitmap, &fattr->rdev);
4568 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004569 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004570 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004571
4572 status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used);
4573 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004574 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004575 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004576
4577 status = decode_attr_time_access(xdr, bitmap, &fattr->atime);
4578 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004579 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004580 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004581
4582 status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime);
4583 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004584 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004585 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004586
4587 status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime);
4588 if (status < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004589 goto xdr_error;
Trond Myklebust409924e2009-03-11 14:10:27 -04004590 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004591
Trond Myklebust28331a42011-04-27 13:47:52 -04004592 status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid);
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004593 if (status < 0)
Manoj Naik99baf622006-06-09 09:34:24 -04004594 goto xdr_error;
Trond Myklebust28331a42011-04-27 13:47:52 -04004595 fattr->valid |= status;
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004596
Andy Adamson88034c32012-05-23 05:02:34 -04004597 status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold);
4598 if (status < 0)
4599 goto xdr_error;
4600
David Quigleyaa9c2662013-05-22 12:50:44 -04004601 if (label) {
4602 status = decode_attr_security_label(xdr, bitmap, label);
4603 if (status < 0)
4604 goto xdr_error;
4605 fattr->valid |= status;
4606 }
4607
Bryan Schumakerae42c702010-10-21 16:33:17 -04004608xdr_error:
4609 dprintk("%s: xdr returned %d\n", __func__, -status);
4610 return status;
4611}
4612
4613static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr,
Trond Myklebust8b7e3f42012-01-30 15:43:56 -05004614 struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc,
David Quigleyaa9c2662013-05-22 12:50:44 -04004615 struct nfs4_label *label, const struct nfs_server *server)
Bryan Schumakerae42c702010-10-21 16:33:17 -04004616{
Trond Myklebust256e48b2012-06-21 11:18:13 -04004617 unsigned int savep;
Bryan Schumakerae42c702010-10-21 16:33:17 -04004618 uint32_t attrlen,
Fred Isamandae100c2011-07-30 20:52:37 -04004619 bitmap[3] = {0};
Bryan Schumakerae42c702010-10-21 16:33:17 -04004620 int status;
4621
4622 status = decode_op_hdr(xdr, OP_GETATTR);
4623 if (status < 0)
4624 goto xdr_error;
4625
4626 status = decode_attr_bitmap(xdr, bitmap);
4627 if (status < 0)
4628 goto xdr_error;
4629
4630 status = decode_attr_length(xdr, &attrlen, &savep);
4631 if (status < 0)
4632 goto xdr_error;
4633
David Quigleyaa9c2662013-05-22 12:50:44 -04004634 status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc,
4635 label, server);
Bryan Schumakerae42c702010-10-21 16:33:17 -04004636 if (status < 0)
4637 goto xdr_error;
4638
Trond Myklebustf26c7a72009-03-11 14:10:26 -04004639 status = verify_attr_len(xdr, savep, attrlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004640xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004641 dprintk("%s: xdr returned %d\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004642 return status;
4643}
4644
David Quigleyaa9c2662013-05-22 12:50:44 -04004645static int decode_getfattr_label(struct xdr_stream *xdr, struct nfs_fattr *fattr,
4646 struct nfs4_label *label, const struct nfs_server *server)
4647{
4648 return decode_getfattr_generic(xdr, fattr, NULL, NULL, label, server);
4649}
4650
Bryan Schumakerae42c702010-10-21 16:33:17 -04004651static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr,
Trond Myklebust6926afd2012-01-07 13:22:46 -05004652 const struct nfs_server *server)
Bryan Schumakerae42c702010-10-21 16:33:17 -04004653{
David Quigleyaa9c2662013-05-22 12:50:44 -04004654 return decode_getfattr_generic(xdr, fattr, NULL, NULL, NULL, server);
Bryan Schumakerae42c702010-10-21 16:33:17 -04004655}
Linus Torvalds1da177e2005-04-16 15:20:36 -07004656
Andy Adamson504913f2010-10-20 00:17:57 -04004657/*
4658 * Decode potentially multiple layout types. Currently we only support
4659 * one layout driver per file system.
4660 */
4661static int decode_first_pnfs_layout_type(struct xdr_stream *xdr,
4662 uint32_t *layouttype)
4663{
Trond Myklebustb8a8a0d2013-08-20 21:08:56 -04004664 __be32 *p;
Andy Adamson504913f2010-10-20 00:17:57 -04004665 int num;
4666
4667 p = xdr_inline_decode(xdr, 4);
4668 if (unlikely(!p))
4669 goto out_overflow;
4670 num = be32_to_cpup(p);
4671
4672 /* pNFS is not supported by the underlying file system */
4673 if (num == 0) {
4674 *layouttype = 0;
4675 return 0;
4676 }
4677 if (num > 1)
Weston Andros Adamsona0308892012-01-26 13:32:23 -05004678 printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout "
4679 "drivers per filesystem not supported\n", __func__);
Andy Adamson504913f2010-10-20 00:17:57 -04004680
4681 /* Decode and set first layout type, move xdr->p past unused types */
4682 p = xdr_inline_decode(xdr, num * 4);
4683 if (unlikely(!p))
4684 goto out_overflow;
4685 *layouttype = be32_to_cpup(p);
4686 return 0;
4687out_overflow:
4688 print_overflow_msg(__func__, xdr);
4689 return -EIO;
4690}
4691
4692/*
4693 * The type of file system exported.
4694 * Note we must ensure that layouttype is set in any non-error case.
4695 */
4696static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap,
4697 uint32_t *layouttype)
4698{
4699 int status = 0;
4700
4701 dprintk("%s: bitmap is %x\n", __func__, bitmap[1]);
4702 if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U)))
4703 return -EIO;
4704 if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) {
4705 status = decode_first_pnfs_layout_type(xdr, layouttype);
4706 bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES;
4707 } else
4708 *layouttype = 0;
4709 return status;
4710}
4711
Fred Isamandae100c2011-07-30 20:52:37 -04004712/*
4713 * The prefered block size for layout directed io
4714 */
4715static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap,
4716 uint32_t *res)
4717{
4718 __be32 *p;
4719
4720 dprintk("%s: bitmap is %x\n", __func__, bitmap[2]);
4721 *res = 0;
4722 if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) {
4723 p = xdr_inline_decode(xdr, 4);
4724 if (unlikely(!p)) {
4725 print_overflow_msg(__func__, xdr);
4726 return -EIO;
4727 }
4728 *res = be32_to_cpup(p);
4729 bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE;
4730 }
4731 return 0;
4732}
4733
Linus Torvalds1da177e2005-04-16 15:20:36 -07004734static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
4735{
Trond Myklebust256e48b2012-06-21 11:18:13 -04004736 unsigned int savep;
Fred Isamandae100c2011-07-30 20:52:37 -04004737 uint32_t attrlen, bitmap[3];
Linus Torvalds1da177e2005-04-16 15:20:36 -07004738 int status;
4739
4740 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4741 goto xdr_error;
4742 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4743 goto xdr_error;
4744 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4745 goto xdr_error;
4746
4747 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
4748
4749 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
4750 goto xdr_error;
4751 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
4752 goto xdr_error;
4753 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
4754 goto xdr_error;
4755 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
4756 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
4757 goto xdr_error;
4758 fsinfo->wtpref = fsinfo->wtmax;
Ricardo Labiaga55b6e772010-10-12 16:30:06 -07004759 status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta);
4760 if (status != 0)
4761 goto xdr_error;
Andy Adamson504913f2010-10-20 00:17:57 -04004762 status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype);
4763 if (status != 0)
4764 goto xdr_error;
Fred Isamandae100c2011-07-30 20:52:37 -04004765 status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize);
4766 if (status)
4767 goto xdr_error;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004768
4769 status = verify_attr_len(xdr, savep, attrlen);
4770xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07004771 dprintk("%s: xdr returned %d!\n", __func__, -status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004772 return status;
4773}
4774
4775static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
4776{
Al Viro8687b632006-10-19 23:28:48 -07004777 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004778 uint32_t len;
4779 int status;
4780
Trond Myklebust99367812007-07-17 21:52:41 -04004781 /* Zero handle first to allow comparisons */
4782 memset(fh, 0, sizeof(*fh));
4783
Linus Torvalds1da177e2005-04-16 15:20:36 -07004784 status = decode_op_hdr(xdr, OP_GETFH);
4785 if (status)
4786 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004787
Benny Halevyc0eae662009-08-14 17:20:14 +03004788 p = xdr_inline_decode(xdr, 4);
4789 if (unlikely(!p))
4790 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004791 len = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004792 if (len > NFS4_FHSIZE)
4793 return -EIO;
4794 fh->size = len;
Benny Halevyc0eae662009-08-14 17:20:14 +03004795 p = xdr_inline_decode(xdr, len);
4796 if (unlikely(!p))
4797 goto out_overflow;
Benny Halevy99398d02009-08-14 17:20:05 +03004798 memcpy(fh->data, p, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004799 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004800out_overflow:
4801 print_overflow_msg(__func__, xdr);
4802 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004803}
4804
4805static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4806{
4807 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05004808
Linus Torvalds1da177e2005-04-16 15:20:36 -07004809 status = decode_op_hdr(xdr, OP_LINK);
4810 if (status)
4811 return status;
4812 return decode_change_info(xdr, cinfo);
4813}
4814
4815/*
4816 * We create the owner, so we know a proper owner.id length is 4.
4817 */
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004818static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004819{
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004820 uint64_t offset, length, clientid;
Al Viro8687b632006-10-19 23:28:48 -07004821 __be32 *p;
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004822 uint32_t namelen, type;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004823
Bryan Schumakerbabddc72010-10-20 15:44:29 -04004824 p = xdr_inline_decode(xdr, 32); /* read 32 bytes */
Benny Halevyc0eae662009-08-14 17:20:14 +03004825 if (unlikely(!p))
4826 goto out_overflow;
Bryan Schumakerbabddc72010-10-20 15:44:29 -04004827 p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */
Benny Halevy3ceb4db2009-08-14 17:19:41 +03004828 p = xdr_decode_hyper(p, &length);
Bryan Schumakerbabddc72010-10-20 15:44:29 -04004829 type = be32_to_cpup(p++); /* 4 byte read */
4830 if (fl != NULL) { /* manipulate file lock */
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004831 fl->fl_start = (loff_t)offset;
4832 fl->fl_end = fl->fl_start + (loff_t)length - 1;
4833 if (length == ~(uint64_t)0)
4834 fl->fl_end = OFFSET_MAX;
4835 fl->fl_type = F_WRLCK;
4836 if (type & 1)
4837 fl->fl_type = F_RDLCK;
4838 fl->fl_pid = 0;
4839 }
Bryan Schumakerbabddc72010-10-20 15:44:29 -04004840 p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */
4841 namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */
4842 p = xdr_inline_decode(xdr, namelen); /* variable size field */
Benny Halevyc0eae662009-08-14 17:20:14 +03004843 if (likely(p))
4844 return -NFS4ERR_DENIED;
4845out_overflow:
4846 print_overflow_msg(__func__, xdr);
4847 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004848}
4849
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004850static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004851{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004852 int status;
4853
4854 status = decode_op_hdr(xdr, OP_LOCK);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004855 if (status == -EIO)
4856 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004857 if (status == 0) {
Benny Halevy07d30432009-08-14 17:19:52 +03004858 status = decode_stateid(xdr, &res->stateid);
4859 if (unlikely(status))
4860 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004861 } else if (status == -NFS4ERR_DENIED)
Trond Myklebustc1d51932008-04-07 13:20:54 -04004862 status = decode_lock_denied(xdr, NULL);
4863 if (res->open_seqid != NULL)
4864 nfs_increment_open_seqid(status, res->open_seqid);
4865 nfs_increment_lock_seqid(status, res->lock_seqid);
4866out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07004867 return status;
4868}
4869
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004870static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004871{
4872 int status;
4873 status = decode_op_hdr(xdr, OP_LOCKT);
4874 if (status == -NFS4ERR_DENIED)
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004875 return decode_lock_denied(xdr, res->denied);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004876 return status;
4877}
4878
Trond Myklebust911d1aa2006-01-03 09:55:16 +01004879static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004880{
Linus Torvalds1da177e2005-04-16 15:20:36 -07004881 int status;
4882
4883 status = decode_op_hdr(xdr, OP_LOCKU);
Trond Myklebustc1d51932008-04-07 13:20:54 -04004884 if (status != -EIO)
4885 nfs_increment_lock_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03004886 if (status == 0)
4887 status = decode_stateid(xdr, &res->stateid);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004888 return status;
4889}
4890
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04004891static int decode_release_lockowner(struct xdr_stream *xdr)
4892{
4893 return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER);
4894}
4895
Linus Torvalds1da177e2005-04-16 15:20:36 -07004896static int decode_lookup(struct xdr_stream *xdr)
4897{
4898 return decode_op_hdr(xdr, OP_LOOKUP);
4899}
4900
4901/* This is too sick! */
4902static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
4903{
Andy Adamson05d564f2008-12-23 16:06:15 -05004904 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004905 uint32_t limit_type, nblocks, blocksize;
4906
Benny Halevyc0eae662009-08-14 17:20:14 +03004907 p = xdr_inline_decode(xdr, 12);
4908 if (unlikely(!p))
4909 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03004910 limit_type = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004911 switch (limit_type) {
Andy Adamson05d564f2008-12-23 16:06:15 -05004912 case 1:
Benny Halevycccddf42009-08-14 17:20:19 +03004913 xdr_decode_hyper(p, maxsize);
Andy Adamson05d564f2008-12-23 16:06:15 -05004914 break;
4915 case 2:
Benny Halevy6f723f72009-08-14 17:19:37 +03004916 nblocks = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03004917 blocksize = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05004918 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004919 }
4920 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03004921out_overflow:
4922 print_overflow_msg(__func__, xdr);
4923 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004924}
4925
Trond Myklebust6ae37332015-01-30 14:21:14 -05004926static int decode_rw_delegation(struct xdr_stream *xdr,
4927 uint32_t delegation_type,
4928 struct nfs_openres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004929{
Andy Adamson05d564f2008-12-23 16:06:15 -05004930 __be32 *p;
Benny Halevy07d30432009-08-14 17:19:52 +03004931 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004932
Benny Halevy07d30432009-08-14 17:19:52 +03004933 status = decode_stateid(xdr, &res->delegation);
4934 if (unlikely(status))
4935 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03004936 p = xdr_inline_decode(xdr, 4);
4937 if (unlikely(!p))
4938 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03004939 res->do_recall = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05004940
Linus Torvalds1da177e2005-04-16 15:20:36 -07004941 switch (delegation_type) {
Andy Adamson05d564f2008-12-23 16:06:15 -05004942 case NFS4_OPEN_DELEGATE_READ:
4943 res->delegation_type = FMODE_READ;
4944 break;
4945 case NFS4_OPEN_DELEGATE_WRITE:
4946 res->delegation_type = FMODE_WRITE|FMODE_READ;
4947 if (decode_space_limit(xdr, &res->maxsize) < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004948 return -EIO;
4949 }
David Howells7539bba2006-08-22 20:06:09 -04004950 return decode_ace(xdr, NULL, res->server->nfs_client);
Benny Halevyc0eae662009-08-14 17:20:14 +03004951out_overflow:
4952 print_overflow_msg(__func__, xdr);
4953 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004954}
4955
Trond Myklebust6ae37332015-01-30 14:21:14 -05004956static int decode_no_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
4957{
4958 __be32 *p;
4959 uint32_t why_no_delegation;
4960
4961 p = xdr_inline_decode(xdr, 4);
4962 if (unlikely(!p))
4963 goto out_overflow;
4964 why_no_delegation = be32_to_cpup(p);
4965 switch (why_no_delegation) {
4966 case WND4_CONTENTION:
4967 case WND4_RESOURCE:
4968 xdr_inline_decode(xdr, 4);
4969 /* Ignore for now */
4970 }
4971 return 0;
4972out_overflow:
4973 print_overflow_msg(__func__, xdr);
4974 return -EIO;
4975}
4976
4977static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
4978{
4979 __be32 *p;
4980 uint32_t delegation_type;
4981
4982 p = xdr_inline_decode(xdr, 4);
4983 if (unlikely(!p))
4984 goto out_overflow;
4985 delegation_type = be32_to_cpup(p);
4986 res->delegation_type = 0;
4987 switch (delegation_type) {
4988 case NFS4_OPEN_DELEGATE_NONE:
4989 return 0;
4990 case NFS4_OPEN_DELEGATE_READ:
4991 case NFS4_OPEN_DELEGATE_WRITE:
4992 return decode_rw_delegation(xdr, delegation_type, res);
4993 case NFS4_OPEN_DELEGATE_NONE_EXT:
4994 return decode_no_delegation(xdr, res);
4995 }
4996 return -EIO;
4997out_overflow:
4998 print_overflow_msg(__func__, xdr);
4999 return -EIO;
5000}
5001
Linus Torvalds1da177e2005-04-16 15:20:36 -07005002static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
5003{
Andy Adamson05d564f2008-12-23 16:06:15 -05005004 __be32 *p;
Jeff Laytonaa53ed52007-06-05 14:49:03 -04005005 uint32_t savewords, bmlen, i;
Andy Adamson05d564f2008-12-23 16:06:15 -05005006 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005007
Trond Myklebustc7848f62013-12-04 17:39:23 -05005008 if (!__decode_op_hdr(xdr, OP_OPEN, &status))
5009 return status;
5010 nfs_increment_open_seqid(status, res->seqid);
5011 if (status)
5012 return status;
5013 status = decode_stateid(xdr, &res->stateid);
Benny Halevy07d30432009-08-14 17:19:52 +03005014 if (unlikely(status))
Andy Adamson05d564f2008-12-23 16:06:15 -05005015 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005016
Andy Adamson05d564f2008-12-23 16:06:15 -05005017 decode_change_info(xdr, &res->cinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005018
Benny Halevyc0eae662009-08-14 17:20:14 +03005019 p = xdr_inline_decode(xdr, 8);
5020 if (unlikely(!p))
5021 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03005022 res->rflags = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03005023 bmlen = be32_to_cpup(p);
Andy Adamson05d564f2008-12-23 16:06:15 -05005024 if (bmlen > 10)
5025 goto xdr_error;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005026
Benny Halevyc0eae662009-08-14 17:20:14 +03005027 p = xdr_inline_decode(xdr, bmlen << 2);
5028 if (unlikely(!p))
5029 goto out_overflow;
Jeff Laytonaa53ed52007-06-05 14:49:03 -04005030 savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE);
5031 for (i = 0; i < savewords; ++i)
Benny Halevy6f723f72009-08-14 17:19:37 +03005032 res->attrset[i] = be32_to_cpup(p++);
Jeff Laytonaa53ed52007-06-05 14:49:03 -04005033 for (; i < NFS4_BITMAP_SIZE; i++)
5034 res->attrset[i] = 0;
5035
Linus Torvalds1da177e2005-04-16 15:20:36 -07005036 return decode_delegation(xdr, res);
5037xdr_error:
Harvey Harrison3110ff82008-05-02 13:42:44 -07005038 dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005039 return -EIO;
Benny Halevyc0eae662009-08-14 17:20:14 +03005040out_overflow:
5041 print_overflow_msg(__func__, xdr);
5042 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005043}
5044
5045static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
5046{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005047 int status;
5048
Andy Adamson05d564f2008-12-23 16:06:15 -05005049 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
Trond Myklebustc1d51932008-04-07 13:20:54 -04005050 if (status != -EIO)
5051 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03005052 if (!status)
5053 status = decode_stateid(xdr, &res->stateid);
5054 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005055}
5056
5057static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
5058{
Linus Torvalds1da177e2005-04-16 15:20:36 -07005059 int status;
5060
5061 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
Trond Myklebustc1d51932008-04-07 13:20:54 -04005062 if (status != -EIO)
5063 nfs_increment_open_seqid(status, res->seqid);
Benny Halevy07d30432009-08-14 17:19:52 +03005064 if (!status)
5065 status = decode_stateid(xdr, &res->stateid);
5066 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005067}
5068
5069static int decode_putfh(struct xdr_stream *xdr)
5070{
5071 return decode_op_hdr(xdr, OP_PUTFH);
5072}
5073
5074static int decode_putrootfh(struct xdr_stream *xdr)
5075{
5076 return decode_op_hdr(xdr, OP_PUTROOTFH);
5077}
5078
Anna Schumaker9137bdf2014-05-06 09:12:25 -04005079static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req,
5080 struct nfs_pgio_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005081{
Al Viro8687b632006-10-19 23:28:48 -07005082 __be32 *p;
Trond Myklebust64bd5772012-06-20 22:35:05 -04005083 uint32_t count, eof, recvd;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005084 int status;
5085
5086 status = decode_op_hdr(xdr, OP_READ);
5087 if (status)
5088 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03005089 p = xdr_inline_decode(xdr, 8);
5090 if (unlikely(!p))
5091 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03005092 eof = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03005093 count = be32_to_cpup(p);
Trond Myklebust64bd5772012-06-20 22:35:05 -04005094 recvd = xdr_read_pages(xdr, count);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005095 if (count > recvd) {
Chuck Leverfe82a182007-09-11 18:01:10 -04005096 dprintk("NFS: server cheating in read reply: "
Linus Torvalds1da177e2005-04-16 15:20:36 -07005097 "count %u > recvd %u\n", count, recvd);
5098 count = recvd;
5099 eof = 0;
5100 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005101 res->eof = eof;
5102 res->count = count;
5103 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005104out_overflow:
5105 print_overflow_msg(__func__, xdr);
5106 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005107}
5108
5109static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
5110{
Chuck Leverbcecff72007-10-26 13:32:03 -04005111 int status;
Chuck Levercd937102012-03-02 17:14:31 -05005112 __be32 verf[2];
Linus Torvalds1da177e2005-04-16 15:20:36 -07005113
5114 status = decode_op_hdr(xdr, OP_READDIR);
Benny Halevydb942bb2009-08-14 17:19:56 +03005115 if (!status)
5116 status = decode_verifier(xdr, readdir->verifier.data);
5117 if (unlikely(status))
Linus Torvalds1da177e2005-04-16 15:20:36 -07005118 return status;
Chuck Levercd937102012-03-02 17:14:31 -05005119 memcpy(verf, readdir->verifier.data, sizeof(verf));
Fred Isaman44109242008-04-02 15:21:15 +03005120 dprintk("%s: verifier = %08x:%08x\n",
Chuck Levercd937102012-03-02 17:14:31 -05005121 __func__, verf[0], verf[1]);
Trond Myklebust64bd5772012-06-20 22:35:05 -04005122 return xdr_read_pages(xdr, xdr->buf->page_len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005123}
5124
5125static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
5126{
5127 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
Chuck Leverbcecff72007-10-26 13:32:03 -04005128 u32 len, recvd;
Al Viro8687b632006-10-19 23:28:48 -07005129 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005130 int status;
5131
5132 status = decode_op_hdr(xdr, OP_READLINK);
5133 if (status)
5134 return status;
5135
5136 /* Convert length of symlink */
Benny Halevyc0eae662009-08-14 17:20:14 +03005137 p = xdr_inline_decode(xdr, 4);
5138 if (unlikely(!p))
5139 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03005140 len = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005141 if (len >= rcvbuf->page_len || len <= 0) {
Chuck Leverfe82a182007-09-11 18:01:10 -04005142 dprintk("nfs: server returned giant symlink!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07005143 return -ENAMETOOLONG;
5144 }
Trond Myklebust64bd5772012-06-20 22:35:05 -04005145 recvd = xdr_read_pages(xdr, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005146 if (recvd < len) {
Chuck Leverfe82a182007-09-11 18:01:10 -04005147 dprintk("NFS: server cheating in readlink reply: "
Linus Torvalds1da177e2005-04-16 15:20:36 -07005148 "count %u > recvd %u\n", len, recvd);
5149 return -EIO;
5150 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005151 /*
5152 * The XDR encode routine has set things up so that
5153 * the link text will be copied directly into the
5154 * buffer. We just have to do overflow-checking,
5155 * and and null-terminate the text (the VFS expects
5156 * null-termination).
5157 */
Chuck Leverb4687da2010-09-21 16:55:48 -04005158 xdr_terminate_string(rcvbuf, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005159 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005160out_overflow:
5161 print_overflow_msg(__func__, xdr);
5162 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005163}
5164
5165static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
5166{
5167 int status;
5168
5169 status = decode_op_hdr(xdr, OP_REMOVE);
5170 if (status)
5171 goto out;
5172 status = decode_change_info(xdr, cinfo);
5173out:
5174 return status;
5175}
5176
5177static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
5178 struct nfs4_change_info *new_cinfo)
5179{
5180 int status;
5181
5182 status = decode_op_hdr(xdr, OP_RENAME);
5183 if (status)
5184 goto out;
5185 if ((status = decode_change_info(xdr, old_cinfo)))
5186 goto out;
5187 status = decode_change_info(xdr, new_cinfo);
5188out:
5189 return status;
5190}
5191
5192static int decode_renew(struct xdr_stream *xdr)
5193{
5194 return decode_op_hdr(xdr, OP_RENEW);
5195}
5196
Trond Myklebust56ae19f2005-10-27 22:12:40 -04005197static int
5198decode_restorefh(struct xdr_stream *xdr)
5199{
5200 return decode_op_hdr(xdr, OP_RESTOREFH);
5201}
5202
J. Bruce Fields029d1052005-06-22 17:16:22 +00005203static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
Andy Adamsonbf118a32011-12-07 11:55:27 -05005204 struct nfs_getaclres *res)
J. Bruce Fields029d1052005-06-22 17:16:22 +00005205{
Trond Myklebust256e48b2012-06-21 11:18:13 -04005206 unsigned int savep;
J. Bruce Fields029d1052005-06-22 17:16:22 +00005207 uint32_t attrlen,
Fred Isamandae100c2011-07-30 20:52:37 -04005208 bitmap[3] = {0};
J. Bruce Fields029d1052005-06-22 17:16:22 +00005209 int status;
Trond Myklebustcff298c2012-08-14 17:14:17 -04005210 unsigned int pg_offset;
J. Bruce Fields029d1052005-06-22 17:16:22 +00005211
Andy Adamsonbf118a32011-12-07 11:55:27 -05005212 res->acl_len = 0;
J. Bruce Fields029d1052005-06-22 17:16:22 +00005213 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
5214 goto out;
Sachin Prabhu5a006892012-04-17 14:35:39 +01005215
Trond Myklebust519d3952012-08-14 17:30:10 -04005216 xdr_enter_page(xdr, xdr->buf->page_len);
5217
Trond Myklebustcff298c2012-08-14 17:14:17 -04005218 /* Calculate the offset of the page data */
5219 pg_offset = xdr->buf->head[0].iov_len;
Sachin Prabhu5a006892012-04-17 14:35:39 +01005220
J. Bruce Fields029d1052005-06-22 17:16:22 +00005221 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
5222 goto out;
5223 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
5224 goto out;
5225
5226 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
5227 return -EIO;
5228 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
J. Bruce Fields029d1052005-06-22 17:16:22 +00005229
Andy Adamsonbf118a32011-12-07 11:55:27 -05005230 /* The bitmap (xdr len + bitmaps) and the attr xdr len words
5231 * are stored with the acl data to handle the problem of
5232 * variable length bitmaps.*/
Trond Myklebustcff298c2012-08-14 17:14:17 -04005233 res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset;
Trond Myklebust519d3952012-08-14 17:30:10 -04005234 res->acl_len = attrlen;
Trond Myklebust1f1ea6c2012-08-26 11:44:43 -07005235
5236 /* Check for receive buffer overflow */
5237 if (res->acl_len > (xdr->nwords << 2) ||
5238 res->acl_len + res->acl_data_offset > xdr->buf->page_len) {
5239 res->acl_flags |= NFS4_ACL_TRUNC;
Trond Myklebust519d3952012-08-14 17:30:10 -04005240 dprintk("NFS: acl reply: attrlen %u > page_len %u\n",
Trond Myklebustcff298c2012-08-14 17:14:17 -04005241 attrlen, xdr->nwords << 2);
J. Bruce Fields029d1052005-06-22 17:16:22 +00005242 }
J. Bruce Fields8c233cf2005-10-13 16:54:27 -04005243 } else
5244 status = -EOPNOTSUPP;
J. Bruce Fields029d1052005-06-22 17:16:22 +00005245
5246out:
5247 return status;
5248}
5249
Linus Torvalds1da177e2005-04-16 15:20:36 -07005250static int
5251decode_savefh(struct xdr_stream *xdr)
5252{
5253 return decode_op_hdr(xdr, OP_SAVEFH);
5254}
5255
Benny Halevy9e9ecc02009-04-01 09:22:00 -04005256static int decode_setattr(struct xdr_stream *xdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005257{
Al Viro8687b632006-10-19 23:28:48 -07005258 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005259 uint32_t bmlen;
5260 int status;
5261
Linus Torvalds1da177e2005-04-16 15:20:36 -07005262 status = decode_op_hdr(xdr, OP_SETATTR);
5263 if (status)
5264 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03005265 p = xdr_inline_decode(xdr, 4);
5266 if (unlikely(!p))
5267 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03005268 bmlen = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03005269 p = xdr_inline_decode(xdr, bmlen << 2);
5270 if (likely(p))
5271 return 0;
5272out_overflow:
5273 print_overflow_msg(__func__, xdr);
5274 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005275}
5276
Trond Myklebustbb8b27e2010-04-16 16:43:06 -04005277static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005278{
Al Viro8687b632006-10-19 23:28:48 -07005279 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005280 uint32_t opnum;
5281 int32_t nfserr;
5282
Benny Halevyc0eae662009-08-14 17:20:14 +03005283 p = xdr_inline_decode(xdr, 8);
5284 if (unlikely(!p))
5285 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03005286 opnum = be32_to_cpup(p++);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005287 if (opnum != OP_SETCLIENTID) {
Chuck Leverfe82a182007-09-11 18:01:10 -04005288 dprintk("nfs: decode_setclientid: Server returned operation"
Andy Adamson6c0195a2008-12-23 16:06:15 -05005289 " %d\n", opnum);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005290 return -EIO;
5291 }
Benny Halevycccddf42009-08-14 17:20:19 +03005292 nfserr = be32_to_cpup(p);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005293 if (nfserr == NFS_OK) {
Benny Halevyc0eae662009-08-14 17:20:14 +03005294 p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE);
5295 if (unlikely(!p))
5296 goto out_overflow;
Trond Myklebustbb8b27e2010-04-16 16:43:06 -04005297 p = xdr_decode_hyper(p, &res->clientid);
5298 memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005299 } else if (nfserr == NFSERR_CLID_INUSE) {
5300 uint32_t len;
5301
5302 /* skip netid string */
Benny Halevyc0eae662009-08-14 17:20:14 +03005303 p = xdr_inline_decode(xdr, 4);
5304 if (unlikely(!p))
5305 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03005306 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03005307 p = xdr_inline_decode(xdr, len);
5308 if (unlikely(!p))
5309 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005310
5311 /* skip uaddr string */
Benny Halevyc0eae662009-08-14 17:20:14 +03005312 p = xdr_inline_decode(xdr, 4);
5313 if (unlikely(!p))
5314 goto out_overflow;
Benny Halevycccddf42009-08-14 17:20:19 +03005315 len = be32_to_cpup(p);
Benny Halevyc0eae662009-08-14 17:20:14 +03005316 p = xdr_inline_decode(xdr, len);
5317 if (unlikely(!p))
5318 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005319 return -NFSERR_CLID_INUSE;
5320 } else
Benny Halevy856dff32008-03-31 17:39:06 +03005321 return nfs4_stat_to_errno(nfserr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005322
5323 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005324out_overflow:
5325 print_overflow_msg(__func__, xdr);
5326 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005327}
5328
5329static int decode_setclientid_confirm(struct xdr_stream *xdr)
5330{
5331 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
5332}
5333
Anna Schumaker9137bdf2014-05-06 09:12:25 -04005334static int decode_write(struct xdr_stream *xdr, struct nfs_pgio_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005335{
Al Viro8687b632006-10-19 23:28:48 -07005336 __be32 *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005337 int status;
5338
5339 status = decode_op_hdr(xdr, OP_WRITE);
5340 if (status)
5341 return status;
5342
Trond Myklebust2f2c63b2012-06-08 11:56:09 -04005343 p = xdr_inline_decode(xdr, 8);
Benny Halevyc0eae662009-08-14 17:20:14 +03005344 if (unlikely(!p))
5345 goto out_overflow;
Benny Halevy6f723f72009-08-14 17:19:37 +03005346 res->count = be32_to_cpup(p++);
5347 res->verf->committed = be32_to_cpup(p++);
Trond Myklebust2f2c63b2012-06-08 11:56:09 -04005348 return decode_write_verifier(xdr, &res->verf->verifier);
Benny Halevyc0eae662009-08-14 17:20:14 +03005349out_overflow:
5350 print_overflow_msg(__func__, xdr);
5351 return -EIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005352}
5353
5354static int decode_delegreturn(struct xdr_stream *xdr)
5355{
5356 return decode_op_hdr(xdr, OP_DELEGRETURN);
5357}
5358
Chuck Leverfb15b262013-03-16 15:54:34 -04005359static int decode_secinfo_gss(struct xdr_stream *xdr,
5360 struct nfs4_secinfo4 *flavor)
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005361{
Chuck Leverfb15b262013-03-16 15:54:34 -04005362 u32 oid_len;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005363 __be32 *p;
5364
5365 p = xdr_inline_decode(xdr, 4);
5366 if (unlikely(!p))
5367 goto out_overflow;
Chuck Leverfb15b262013-03-16 15:54:34 -04005368 oid_len = be32_to_cpup(p);
5369 if (oid_len > GSS_OID_MAX_LEN)
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005370 goto out_err;
5371
Chuck Leverfb15b262013-03-16 15:54:34 -04005372 p = xdr_inline_decode(xdr, oid_len);
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005373 if (unlikely(!p))
5374 goto out_overflow;
Chuck Leverfb15b262013-03-16 15:54:34 -04005375 memcpy(flavor->flavor_info.oid.data, p, oid_len);
5376 flavor->flavor_info.oid.len = oid_len;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005377
5378 p = xdr_inline_decode(xdr, 8);
5379 if (unlikely(!p))
5380 goto out_overflow;
Chuck Leverfb15b262013-03-16 15:54:34 -04005381 flavor->flavor_info.qop = be32_to_cpup(p++);
5382 flavor->flavor_info.service = be32_to_cpup(p);
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005383
5384 return 0;
5385
5386out_overflow:
5387 print_overflow_msg(__func__, xdr);
5388 return -EIO;
5389out_err:
5390 return -EINVAL;
5391}
5392
Bryan Schumaker31e4dda2012-04-27 13:27:38 -04005393static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005394{
Chuck Leverfb15b262013-03-16 15:54:34 -04005395 struct nfs4_secinfo4 *sec_flavor;
5396 unsigned int i, num_flavors;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005397 int status;
5398 __be32 *p;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005399
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005400 p = xdr_inline_decode(xdr, 4);
5401 if (unlikely(!p))
5402 goto out_overflow;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005403
Bryan Schumakerc3dfc282011-04-13 14:31:31 -04005404 res->flavors->num_flavors = 0;
5405 num_flavors = be32_to_cpup(p);
5406
5407 for (i = 0; i < num_flavors; i++) {
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005408 sec_flavor = &res->flavors->flavors[i];
Bryan Schumakerc3dfc282011-04-13 14:31:31 -04005409 if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE)
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005410 break;
5411
5412 p = xdr_inline_decode(xdr, 4);
5413 if (unlikely(!p))
5414 goto out_overflow;
5415 sec_flavor->flavor = be32_to_cpup(p);
5416
5417 if (sec_flavor->flavor == RPC_AUTH_GSS) {
Bryan Schumaker613e9012011-04-27 15:28:44 -04005418 status = decode_secinfo_gss(xdr, sec_flavor);
5419 if (status)
5420 goto out;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005421 }
Bryan Schumakerc3dfc282011-04-13 14:31:31 -04005422 res->flavors->num_flavors++;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005423 }
5424
Bryan Schumaker31e4dda2012-04-27 13:27:38 -04005425 status = 0;
Bryan Schumaker613e9012011-04-27 15:28:44 -04005426out:
5427 return status;
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00005428out_overflow:
5429 print_overflow_msg(__func__, xdr);
5430 return -EIO;
5431}
5432
Bryan Schumaker31e4dda2012-04-27 13:27:38 -04005433static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
5434{
5435 int status = decode_op_hdr(xdr, OP_SECINFO);
5436 if (status)
5437 return status;
5438 return decode_secinfo_common(xdr, res);
5439}
5440
Benny Halevy99fe60d2009-04-01 09:22:29 -04005441#if defined(CONFIG_NFS_V4_1)
Bryan Schumaker31e4dda2012-04-27 13:27:38 -04005442static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
5443{
5444 int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME);
5445 if (status)
5446 return status;
5447 return decode_secinfo_common(xdr, res);
5448}
5449
Weston Andros Adamson2031cd12013-08-13 16:37:32 -04005450static int decode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map)
5451{
5452 __be32 *p;
5453 uint32_t bitmap_words;
5454 unsigned int i;
5455
5456 p = xdr_inline_decode(xdr, 4);
5457 bitmap_words = be32_to_cpup(p++);
5458 if (bitmap_words > NFS4_OP_MAP_NUM_WORDS)
5459 return -EIO;
5460 p = xdr_inline_decode(xdr, 4 * bitmap_words);
5461 for (i = 0; i < bitmap_words; i++)
5462 op_map->u.words[i] = be32_to_cpup(p++);
5463
5464 return 0;
5465}
5466
Benny Halevy99fe60d2009-04-01 09:22:29 -04005467static int decode_exchange_id(struct xdr_stream *xdr,
5468 struct nfs41_exchange_id_res *res)
5469{
5470 __be32 *p;
5471 uint32_t dummy;
Benny Halevy2460ba52009-08-14 17:20:10 +03005472 char *dummy_str;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005473 int status;
Weston Andros Adamson7d2ed9a2012-02-17 15:20:26 -05005474 uint32_t impl_id_count;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005475
5476 status = decode_op_hdr(xdr, OP_EXCHANGE_ID);
5477 if (status)
5478 return status;
5479
Benny Halevyc0eae662009-08-14 17:20:14 +03005480 p = xdr_inline_decode(xdr, 8);
5481 if (unlikely(!p))
5482 goto out_overflow;
Trond Myklebust32b01312012-05-26 13:41:04 -04005483 xdr_decode_hyper(p, &res->clientid);
Benny Halevyc0eae662009-08-14 17:20:14 +03005484 p = xdr_inline_decode(xdr, 12);
5485 if (unlikely(!p))
5486 goto out_overflow;
Trond Myklebust32b01312012-05-26 13:41:04 -04005487 res->seqid = be32_to_cpup(p++);
5488 res->flags = be32_to_cpup(p++);
Benny Halevy99fe60d2009-04-01 09:22:29 -04005489
Weston Andros Adamson2031cd12013-08-13 16:37:32 -04005490 res->state_protect.how = be32_to_cpup(p);
5491 switch (res->state_protect.how) {
5492 case SP4_NONE:
5493 break;
5494 case SP4_MACH_CRED:
5495 status = decode_op_map(xdr, &res->state_protect.enforce);
5496 if (status)
5497 return status;
5498 status = decode_op_map(xdr, &res->state_protect.allow);
5499 if (status)
5500 return status;
5501 break;
5502 default:
5503 WARN_ON_ONCE(1);
Benny Halevy99fe60d2009-04-01 09:22:29 -04005504 return -EIO;
Weston Andros Adamson2031cd12013-08-13 16:37:32 -04005505 }
Benny Halevy99fe60d2009-04-01 09:22:29 -04005506
Chuck Leveracdeb692012-05-21 22:46:16 -04005507 /* server_owner4.so_minor_id */
Benny Halevyc0eae662009-08-14 17:20:14 +03005508 p = xdr_inline_decode(xdr, 8);
5509 if (unlikely(!p))
5510 goto out_overflow;
Chuck Leveracdeb692012-05-21 22:46:16 -04005511 p = xdr_decode_hyper(p, &res->server_owner->minor_id);
Benny Halevy99fe60d2009-04-01 09:22:29 -04005512
Chuck Leveracdeb692012-05-21 22:46:16 -04005513 /* server_owner4.so_major_id */
Benny Halevy2460ba52009-08-14 17:20:10 +03005514 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5515 if (unlikely(status))
5516 return status;
Weston Andros Adamson78fe0f42011-05-31 19:05:47 -04005517 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5518 return -EIO;
Chuck Leveracdeb692012-05-21 22:46:16 -04005519 memcpy(res->server_owner->major_id, dummy_str, dummy);
5520 res->server_owner->major_id_sz = dummy;
Weston Andros Adamson78fe0f42011-05-31 19:05:47 -04005521
Chuck Leveracdeb692012-05-21 22:46:16 -04005522 /* server_scope4 */
5523 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5524 if (unlikely(status))
5525 return status;
5526 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5527 return -EIO;
Weston Andros Adamson78fe0f42011-05-31 19:05:47 -04005528 memcpy(res->server_scope->server_scope, dummy_str, dummy);
5529 res->server_scope->server_scope_sz = dummy;
5530
Weston Andros Adamson7d2ed9a2012-02-17 15:20:26 -05005531 /* Implementation Id */
5532 p = xdr_inline_decode(xdr, 4);
5533 if (unlikely(!p))
5534 goto out_overflow;
5535 impl_id_count = be32_to_cpup(p++);
Benny Halevy99fe60d2009-04-01 09:22:29 -04005536
Weston Andros Adamson7d2ed9a2012-02-17 15:20:26 -05005537 if (impl_id_count) {
5538 /* nii_domain */
5539 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5540 if (unlikely(status))
5541 return status;
5542 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5543 return -EIO;
5544 memcpy(res->impl_id->domain, dummy_str, dummy);
5545
5546 /* nii_name */
5547 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5548 if (unlikely(status))
5549 return status;
5550 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5551 return -EIO;
5552 memcpy(res->impl_id->name, dummy_str, dummy);
5553
5554 /* nii_date */
5555 p = xdr_inline_decode(xdr, 12);
5556 if (unlikely(!p))
5557 goto out_overflow;
5558 p = xdr_decode_hyper(p, &res->impl_id->date.seconds);
5559 res->impl_id->date.nseconds = be32_to_cpup(p);
5560
5561 /* if there's more than one entry, ignore the rest */
5562 }
Benny Halevy99fe60d2009-04-01 09:22:29 -04005563 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005564out_overflow:
5565 print_overflow_msg(__func__, xdr);
5566 return -EIO;
Benny Halevy99fe60d2009-04-01 09:22:29 -04005567}
Andy Adamsonfc931582009-04-01 09:22:31 -04005568
5569static int decode_chan_attrs(struct xdr_stream *xdr,
5570 struct nfs4_channel_attrs *attrs)
5571{
5572 __be32 *p;
Benny Halevyc9c30dd2011-06-11 17:08:39 -04005573 u32 nr_attrs, val;
Andy Adamsonfc931582009-04-01 09:22:31 -04005574
Benny Halevyc0eae662009-08-14 17:20:14 +03005575 p = xdr_inline_decode(xdr, 28);
5576 if (unlikely(!p))
5577 goto out_overflow;
Benny Halevyc9c30dd2011-06-11 17:08:39 -04005578 val = be32_to_cpup(p++); /* headerpadsz */
5579 if (val)
5580 return -EINVAL; /* no support for header padding yet */
Benny Halevy6f723f72009-08-14 17:19:37 +03005581 attrs->max_rqst_sz = be32_to_cpup(p++);
5582 attrs->max_resp_sz = be32_to_cpup(p++);
5583 attrs->max_resp_sz_cached = be32_to_cpup(p++);
5584 attrs->max_ops = be32_to_cpup(p++);
5585 attrs->max_reqs = be32_to_cpup(p++);
Benny Halevycccddf42009-08-14 17:20:19 +03005586 nr_attrs = be32_to_cpup(p);
Andy Adamsonfc931582009-04-01 09:22:31 -04005587 if (unlikely(nr_attrs > 1)) {
Weston Andros Adamsona0308892012-01-26 13:32:23 -05005588 printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs "
5589 "count %u\n", __func__, nr_attrs);
Andy Adamsonfc931582009-04-01 09:22:31 -04005590 return -EINVAL;
5591 }
Benny Halevyc0eae662009-08-14 17:20:14 +03005592 if (nr_attrs == 1) {
5593 p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */
5594 if (unlikely(!p))
5595 goto out_overflow;
5596 }
Andy Adamsonfc931582009-04-01 09:22:31 -04005597 return 0;
Benny Halevyc0eae662009-08-14 17:20:14 +03005598out_overflow:
5599 print_overflow_msg(__func__, xdr);
5600 return -EIO;
Andy Adamsonfc931582009-04-01 09:22:31 -04005601}
5602
Benny Halevye78291e2009-08-14 17:20:00 +03005603static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid)
5604{
5605 return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN);
Andy Adamsonfc931582009-04-01 09:22:31 -04005606}
5607
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -04005608static int decode_bind_conn_to_session(struct xdr_stream *xdr,
5609 struct nfs41_bind_conn_to_session_res *res)
5610{
5611 __be32 *p;
5612 int status;
5613
5614 status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION);
5615 if (!status)
Trond Myklebust71a097c2015-02-18 09:27:18 -08005616 status = decode_sessionid(xdr, &res->sessionid);
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -04005617 if (unlikely(status))
5618 return status;
5619
5620 /* dir flags, rdma mode bool */
5621 p = xdr_inline_decode(xdr, 8);
5622 if (unlikely(!p))
5623 goto out_overflow;
5624
5625 res->dir = be32_to_cpup(p++);
5626 if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH)
5627 return -EIO;
5628 if (be32_to_cpup(p) == 0)
5629 res->use_conn_in_rdma_mode = false;
5630 else
5631 res->use_conn_in_rdma_mode = true;
5632
5633 return 0;
5634out_overflow:
5635 print_overflow_msg(__func__, xdr);
5636 return -EIO;
5637}
5638
Andy Adamsonfc931582009-04-01 09:22:31 -04005639static int decode_create_session(struct xdr_stream *xdr,
5640 struct nfs41_create_session_res *res)
5641{
5642 __be32 *p;
5643 int status;
Andy Adamsonfc931582009-04-01 09:22:31 -04005644
5645 status = decode_op_hdr(xdr, OP_CREATE_SESSION);
Benny Halevye78291e2009-08-14 17:20:00 +03005646 if (!status)
Trond Myklebust79969dd2015-02-18 11:30:18 -08005647 status = decode_sessionid(xdr, &res->sessionid);
Benny Halevye78291e2009-08-14 17:20:00 +03005648 if (unlikely(status))
Andy Adamsonfc931582009-04-01 09:22:31 -04005649 return status;
5650
Andy Adamsonfc931582009-04-01 09:22:31 -04005651 /* seqid, flags */
Benny Halevyc0eae662009-08-14 17:20:14 +03005652 p = xdr_inline_decode(xdr, 8);
5653 if (unlikely(!p))
5654 goto out_overflow;
Trond Myklebust79969dd2015-02-18 11:30:18 -08005655 res->seqid = be32_to_cpup(p++);
5656 res->flags = be32_to_cpup(p);
Andy Adamsonfc931582009-04-01 09:22:31 -04005657
5658 /* Channel attributes */
Trond Myklebust79969dd2015-02-18 11:30:18 -08005659 status = decode_chan_attrs(xdr, &res->fc_attrs);
Andy Adamsonfc931582009-04-01 09:22:31 -04005660 if (!status)
Trond Myklebust79969dd2015-02-18 11:30:18 -08005661 status = decode_chan_attrs(xdr, &res->bc_attrs);
Andy Adamsonfc931582009-04-01 09:22:31 -04005662 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03005663out_overflow:
5664 print_overflow_msg(__func__, xdr);
5665 return -EIO;
Andy Adamsonfc931582009-04-01 09:22:31 -04005666}
Andy Adamson0f3e66c2009-04-01 09:22:34 -04005667
5668static int decode_destroy_session(struct xdr_stream *xdr, void *dummy)
5669{
5670 return decode_op_hdr(xdr, OP_DESTROY_SESSION);
5671}
Ricardo Labiaga180197532009-12-05 16:08:40 -05005672
Trond Myklebust66245532012-05-25 17:18:09 -04005673static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy)
5674{
5675 return decode_op_hdr(xdr, OP_DESTROY_CLIENTID);
5676}
5677
Ricardo Labiaga180197532009-12-05 16:08:40 -05005678static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy)
5679{
5680 return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE);
5681}
Benny Halevy99fe60d2009-04-01 09:22:29 -04005682#endif /* CONFIG_NFS_V4_1 */
5683
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005684static int decode_sequence(struct xdr_stream *xdr,
5685 struct nfs4_sequence_res *res,
5686 struct rpc_rqst *rqstp)
5687{
5688#if defined(CONFIG_NFS_V4_1)
Trond Myklebuste3725ec2012-11-16 12:25:01 -05005689 struct nfs4_session *session;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005690 struct nfs4_sessionid id;
5691 u32 dummy;
5692 int status;
5693 __be32 *p;
5694
Trond Myklebuste3725ec2012-11-16 12:25:01 -05005695 if (res->sr_slot == NULL)
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005696 return 0;
Chuck Lever3bd23842013-08-09 12:49:19 -04005697 if (!res->sr_slot->table->session)
5698 return 0;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005699
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005700 status = decode_op_hdr(xdr, OP_SEQUENCE);
Benny Halevye78291e2009-08-14 17:20:00 +03005701 if (!status)
5702 status = decode_sessionid(xdr, &id);
5703 if (unlikely(status))
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005704 goto out_err;
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005705
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005706 /*
5707 * If the server returns different values for sessionID, slotID or
5708 * sequence number, the server is looney tunes.
5709 */
Trond Myklebustfdcb4572010-02-08 09:32:40 -05005710 status = -EREMOTEIO;
Trond Myklebuste3725ec2012-11-16 12:25:01 -05005711 session = res->sr_slot->table->session;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005712
Trond Myklebuste3725ec2012-11-16 12:25:01 -05005713 if (memcmp(id.data, session->sess_id.data,
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005714 NFS4_MAX_SESSIONID_LEN)) {
5715 dprintk("%s Invalid session id\n", __func__);
5716 goto out_err;
5717 }
Benny Halevye78291e2009-08-14 17:20:00 +03005718
Benny Halevyc0eae662009-08-14 17:20:14 +03005719 p = xdr_inline_decode(xdr, 20);
5720 if (unlikely(!p))
5721 goto out_overflow;
Benny Halevye78291e2009-08-14 17:20:00 +03005722
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005723 /* seqid */
Benny Halevy6f723f72009-08-14 17:19:37 +03005724 dummy = be32_to_cpup(p++);
Benny Halevydfb4f3092010-09-24 09:17:01 -04005725 if (dummy != res->sr_slot->seq_nr) {
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005726 dprintk("%s Invalid sequence number\n", __func__);
5727 goto out_err;
5728 }
5729 /* slot id */
Benny Halevy6f723f72009-08-14 17:19:37 +03005730 dummy = be32_to_cpup(p++);
Trond Myklebustdf2fabf2012-11-16 12:45:06 -05005731 if (dummy != res->sr_slot->slot_nr) {
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005732 dprintk("%s Invalid slot id\n", __func__);
5733 goto out_err;
5734 }
Trond Myklebustda0507b2012-11-20 18:10:30 -05005735 /* highest slot id */
5736 res->sr_highest_slotid = be32_to_cpup(p++);
Trond Myklebust464ee9f2012-11-20 12:49:27 -05005737 /* target highest slot id */
5738 res->sr_target_highest_slotid = be32_to_cpup(p++);
Alexandros Batsakis0629e372009-12-05 13:46:14 -05005739 /* result flags */
5740 res->sr_status_flags = be32_to_cpup(p);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005741 status = 0;
5742out_err:
5743 res->sr_status = status;
5744 return status;
Benny Halevyc0eae662009-08-14 17:20:14 +03005745out_overflow:
5746 print_overflow_msg(__func__, xdr);
5747 status = -EIO;
5748 goto out_err;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005749#else /* CONFIG_NFS_V4_1 */
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005750 return 0;
Andy Adamsonfc01cea2009-04-01 09:22:36 -04005751#endif /* CONFIG_NFS_V4_1 */
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005752}
5753
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005754#if defined(CONFIG_NFS_V4_1)
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005755static int decode_getdeviceinfo(struct xdr_stream *xdr,
Trond Myklebust4e590802015-03-09 14:01:25 -04005756 struct nfs4_getdeviceinfo_res *res)
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005757{
Trond Myklebust4e590802015-03-09 14:01:25 -04005758 struct pnfs_device *pdev = res->pdev;
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005759 __be32 *p;
5760 uint32_t len, type;
5761 int status;
5762
5763 status = decode_op_hdr(xdr, OP_GETDEVICEINFO);
5764 if (status) {
5765 if (status == -ETOOSMALL) {
5766 p = xdr_inline_decode(xdr, 4);
5767 if (unlikely(!p))
5768 goto out_overflow;
5769 pdev->mincount = be32_to_cpup(p);
5770 dprintk("%s: Min count too small. mincnt = %u\n",
5771 __func__, pdev->mincount);
5772 }
5773 return status;
5774 }
5775
5776 p = xdr_inline_decode(xdr, 8);
5777 if (unlikely(!p))
5778 goto out_overflow;
5779 type = be32_to_cpup(p++);
5780 if (type != pdev->layout_type) {
5781 dprintk("%s: layout mismatch req: %u pdev: %u\n",
5782 __func__, pdev->layout_type, type);
5783 return -EINVAL;
5784 }
5785 /*
5786 * Get the length of the opaque device_addr4. xdr_read_pages places
5787 * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages)
5788 * and places the remaining xdr data in xdr_buf->tail
5789 */
5790 pdev->mincount = be32_to_cpup(p);
Trond Myklebust13fe4ba2012-08-01 14:21:12 -04005791 if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount)
5792 goto out_overflow;
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005793
5794 /* Parse notification bitmap, verifying that it is zero. */
5795 p = xdr_inline_decode(xdr, 4);
5796 if (unlikely(!p))
5797 goto out_overflow;
5798 len = be32_to_cpup(p);
5799 if (len) {
Chuck Leveread00592010-12-14 14:58:21 +00005800 uint32_t i;
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005801
5802 p = xdr_inline_decode(xdr, 4 * len);
5803 if (unlikely(!p))
5804 goto out_overflow;
Christoph Hellwig84c9dee2014-09-10 17:37:28 -07005805
Trond Myklebust4e590802015-03-09 14:01:25 -04005806 res->notification = be32_to_cpup(p++);
Christoph Hellwig84c9dee2014-09-10 17:37:28 -07005807 for (i = 1; i < len; i++) {
5808 if (be32_to_cpup(p++)) {
5809 dprintk("%s: unsupported notification\n",
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005810 __func__);
5811 return -EIO;
5812 }
5813 }
5814 }
5815 return 0;
5816out_overflow:
5817 print_overflow_msg(__func__, xdr);
5818 return -EIO;
5819}
5820
5821static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
5822 struct nfs4_layoutget_res *res)
5823{
5824 __be32 *p;
5825 int status;
5826 u32 layout_count;
Trond Myklebust64bd5772012-06-20 22:35:05 -04005827 u32 recvd;
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005828
5829 status = decode_op_hdr(xdr, OP_LAYOUTGET);
5830 if (status)
5831 return status;
Trond Myklebustea9d23f2012-03-04 18:13:56 -05005832 p = xdr_inline_decode(xdr, 4);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005833 if (unlikely(!p))
5834 goto out_overflow;
Trond Myklebustea9d23f2012-03-04 18:13:56 -05005835 res->return_on_close = be32_to_cpup(p);
5836 decode_stateid(xdr, &res->stateid);
5837 p = xdr_inline_decode(xdr, 4);
5838 if (unlikely(!p))
5839 goto out_overflow;
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005840 layout_count = be32_to_cpup(p);
5841 if (!layout_count) {
5842 dprintk("%s: server responded with empty layout array\n",
5843 __func__);
5844 return -EINVAL;
5845 }
5846
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005847 p = xdr_inline_decode(xdr, 28);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005848 if (unlikely(!p))
5849 goto out_overflow;
5850 p = xdr_decode_hyper(p, &res->range.offset);
5851 p = xdr_decode_hyper(p, &res->range.length);
5852 res->range.iomode = be32_to_cpup(p++);
5853 res->type = be32_to_cpup(p++);
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005854 res->layoutp->len = be32_to_cpup(p);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005855
5856 dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n",
5857 __func__,
5858 (unsigned long)res->range.offset,
5859 (unsigned long)res->range.length,
5860 res->range.iomode,
5861 res->type,
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005862 res->layoutp->len);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005863
Trond Myklebust64bd5772012-06-20 22:35:05 -04005864 recvd = xdr_read_pages(xdr, res->layoutp->len);
Weston Andros Adamson35124a02011-03-24 16:48:21 -04005865 if (res->layoutp->len > recvd) {
5866 dprintk("NFS: server cheating in layoutget reply: "
5867 "layout len %u > recvd %u\n",
5868 res->layoutp->len, recvd);
5869 return -EINVAL;
5870 }
5871
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005872 if (layout_count > 1) {
5873 /* We only handle a length one array at the moment. Any
5874 * further entries are just ignored. Note that this means
5875 * the client may see a response that is less than the
5876 * minimum it requested.
5877 */
5878 dprintk("%s: server responded with %d layouts, dropping tail\n",
5879 __func__, layout_count);
5880 }
5881
5882 return 0;
5883out_overflow:
5884 print_overflow_msg(__func__, xdr);
5885 return -EIO;
5886}
Andy Adamson863a3c62011-03-23 13:27:54 +00005887
Benny Halevycbe82602011-05-22 19:52:37 +03005888static int decode_layoutreturn(struct xdr_stream *xdr,
5889 struct nfs4_layoutreturn_res *res)
5890{
5891 __be32 *p;
5892 int status;
5893
5894 status = decode_op_hdr(xdr, OP_LAYOUTRETURN);
5895 if (status)
5896 return status;
5897 p = xdr_inline_decode(xdr, 4);
5898 if (unlikely(!p))
5899 goto out_overflow;
5900 res->lrs_present = be32_to_cpup(p);
5901 if (res->lrs_present)
5902 status = decode_stateid(xdr, &res->stateid);
5903 return status;
5904out_overflow:
5905 print_overflow_msg(__func__, xdr);
5906 return -EIO;
5907}
5908
Andy Adamson863a3c62011-03-23 13:27:54 +00005909static int decode_layoutcommit(struct xdr_stream *xdr,
5910 struct rpc_rqst *req,
5911 struct nfs4_layoutcommit_res *res)
5912{
5913 __be32 *p;
5914 __u32 sizechanged;
5915 int status;
5916
5917 status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT);
Andy Adamsondb29c082011-07-30 20:52:38 -04005918 res->status = status;
Andy Adamson863a3c62011-03-23 13:27:54 +00005919 if (status)
5920 return status;
5921
5922 p = xdr_inline_decode(xdr, 4);
5923 if (unlikely(!p))
5924 goto out_overflow;
5925 sizechanged = be32_to_cpup(p);
5926
5927 if (sizechanged) {
5928 /* throw away new size */
5929 p = xdr_inline_decode(xdr, 8);
5930 if (unlikely(!p))
5931 goto out_overflow;
5932 }
5933 return 0;
5934out_overflow:
5935 print_overflow_msg(__func__, xdr);
5936 return -EIO;
5937}
Bryan Schumaker7d974792011-06-02 14:59:08 -04005938
5939static int decode_test_stateid(struct xdr_stream *xdr,
5940 struct nfs41_test_stateid_res *res)
5941{
5942 __be32 *p;
5943 int status;
5944 int num_res;
5945
5946 status = decode_op_hdr(xdr, OP_TEST_STATEID);
5947 if (status)
5948 return status;
5949
5950 p = xdr_inline_decode(xdr, 4);
5951 if (unlikely(!p))
5952 goto out_overflow;
5953 num_res = be32_to_cpup(p++);
5954 if (num_res != 1)
5955 goto out;
5956
5957 p = xdr_inline_decode(xdr, 4);
5958 if (unlikely(!p))
5959 goto out_overflow;
5960 res->status = be32_to_cpup(p++);
Bryan Schumaker1cab0652012-01-31 10:39:29 -05005961
5962 return status;
Bryan Schumaker7d974792011-06-02 14:59:08 -04005963out_overflow:
5964 print_overflow_msg(__func__, xdr);
5965out:
5966 return -EIO;
5967}
Bryan Schumaker9aeda352011-06-02 14:59:09 -04005968
5969static int decode_free_stateid(struct xdr_stream *xdr,
5970 struct nfs41_free_stateid_res *res)
5971{
Andy Adamson9f79fb42013-09-10 12:56:29 -04005972 res->status = decode_op_hdr(xdr, OP_FREE_STATEID);
Bryan Schumaker9aeda352011-06-02 14:59:09 -04005973 return res->status;
Bryan Schumaker9aeda352011-06-02 14:59:09 -04005974}
Andy Adamsonb1f69b72010-10-20 00:18:03 -04005975#endif /* CONFIG_NFS_V4_1 */
5976
Linus Torvalds1da177e2005-04-16 15:20:36 -07005977/*
Benny Halevy49c25592008-12-23 16:06:16 -05005978 * END OF "GENERIC" DECODE ROUTINES.
5979 */
5980
5981/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07005982 * Decode OPEN_DOWNGRADE response
5983 */
Chuck Leverbf269552010-12-14 14:59:29 +00005984static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp,
5985 struct xdr_stream *xdr,
5986 struct nfs_closeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005987{
Andy Adamson05d564f2008-12-23 16:06:15 -05005988 struct compound_hdr hdr;
5989 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005990
Chuck Leverbf269552010-12-14 14:59:29 +00005991 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05005992 if (status)
5993 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005994 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04005995 if (status)
5996 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00005997 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05005998 if (status)
5999 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006000 status = decode_open_downgrade(xdr, res);
Trond Myklebust516a6af2005-10-27 22:12:41 -04006001 if (status != 0)
6002 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05006003 decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006004out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006005 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006006}
6007
6008/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07006009 * Decode ACCESS response
6010 */
Chuck Leverbf269552010-12-14 14:59:29 +00006011static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6012 struct nfs4_accessres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006013{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006014 struct compound_hdr hdr;
6015 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05006016
Chuck Leverbf269552010-12-14 14:59:29 +00006017 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006018 if (status)
6019 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006020 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006021 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006022 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006023 status = decode_putfh(xdr);
Trond Myklebust76b32992007-08-10 17:45:11 -04006024 if (status != 0)
6025 goto out;
Weston Andros Adamson6168f622012-09-10 14:00:46 -04006026 status = decode_access(xdr, &res->supported, &res->access);
Trond Myklebust76b32992007-08-10 17:45:11 -04006027 if (status != 0)
6028 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05006029 decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006030out:
6031 return status;
6032}
6033
6034/*
6035 * Decode LOOKUP response
6036 */
Chuck Leverbf269552010-12-14 14:59:29 +00006037static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6038 struct nfs4_lookup_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006039{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006040 struct compound_hdr hdr;
6041 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05006042
Chuck Leverbf269552010-12-14 14:59:29 +00006043 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006044 if (status)
6045 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006046 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006047 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006048 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006049 status = decode_putfh(xdr);
6050 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006051 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006052 status = decode_lookup(xdr);
6053 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006054 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006055 status = decode_getfh(xdr, res->fh);
6056 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006057 goto out;
David Quigleyaa9c2662013-05-22 12:50:44 -04006058 status = decode_getfattr_label(xdr, res->fattr, res->label, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006059out:
6060 return status;
6061}
6062
6063/*
6064 * Decode LOOKUP_ROOT response
6065 */
Chuck Leverbf269552010-12-14 14:59:29 +00006066static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp,
6067 struct xdr_stream *xdr,
6068 struct nfs4_lookup_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006069{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006070 struct compound_hdr hdr;
6071 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05006072
Chuck Leverbf269552010-12-14 14:59:29 +00006073 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006074 if (status)
6075 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006076 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006077 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006078 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006079 status = decode_putrootfh(xdr);
6080 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006081 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006082 status = decode_getfh(xdr, res->fh);
6083 if (status == 0)
David Quigleyaa9c2662013-05-22 12:50:44 -04006084 status = decode_getfattr_label(xdr, res->fattr,
6085 res->label, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006086out:
6087 return status;
6088}
6089
6090/*
6091 * Decode REMOVE response
6092 */
Chuck Leverbf269552010-12-14 14:59:29 +00006093static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6094 struct nfs_removeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006095{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006096 struct compound_hdr hdr;
6097 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05006098
Chuck Leverbf269552010-12-14 14:59:29 +00006099 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006100 if (status)
6101 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006102 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006103 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006104 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006105 status = decode_putfh(xdr);
6106 if (status)
Trond Myklebust16e42952005-10-27 22:12:44 -04006107 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006108 status = decode_remove(xdr, &res->cinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006109out:
6110 return status;
6111}
6112
6113/*
6114 * Decode RENAME response
6115 */
Chuck Leverbf269552010-12-14 14:59:29 +00006116static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6117 struct nfs_renameres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006118{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006119 struct compound_hdr hdr;
6120 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05006121
Chuck Leverbf269552010-12-14 14:59:29 +00006122 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006123 if (status)
6124 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006125 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006126 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006127 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006128 status = decode_putfh(xdr);
6129 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006130 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006131 status = decode_savefh(xdr);
6132 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006133 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006134 status = decode_putfh(xdr);
6135 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006136 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006137 status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006138out:
6139 return status;
6140}
6141
6142/*
6143 * Decode LINK response
6144 */
Chuck Leverbf269552010-12-14 14:59:29 +00006145static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6146 struct nfs4_link_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006147{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006148 struct compound_hdr hdr;
6149 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05006150
Chuck Leverbf269552010-12-14 14:59:29 +00006151 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006152 if (status)
6153 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006154 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006155 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006156 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006157 status = decode_putfh(xdr);
6158 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006159 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006160 status = decode_savefh(xdr);
6161 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)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006165 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006166 status = decode_link(xdr, &res->cinfo);
6167 if (status)
Trond Myklebust91ba2ee2005-10-27 22:12:42 -04006168 goto out;
6169 /*
6170 * Note order: OP_LINK leaves the directory as the current
6171 * filehandle.
6172 */
Chuck Leverbf269552010-12-14 14:59:29 +00006173 status = decode_restorefh(xdr);
6174 if (status)
Trond Myklebust91ba2ee2005-10-27 22:12:42 -04006175 goto out;
David Quigleyaa9c2662013-05-22 12:50:44 -04006176 decode_getfattr_label(xdr, res->fattr, res->label, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006177out:
6178 return status;
6179}
6180
6181/*
6182 * Decode CREATE response
6183 */
Chuck Leverbf269552010-12-14 14:59:29 +00006184static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6185 struct nfs4_create_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006186{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006187 struct compound_hdr hdr;
6188 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05006189
Chuck Leverbf269552010-12-14 14:59:29 +00006190 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006191 if (status)
6192 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006193 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006194 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006195 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006196 status = decode_putfh(xdr);
6197 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006198 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006199 status = decode_create(xdr, &res->dir_cinfo);
6200 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006201 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006202 status = decode_getfh(xdr, res->fh);
6203 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006204 goto out;
David Quigleyaa9c2662013-05-22 12:50:44 -04006205 decode_getfattr_label(xdr, res->fattr, res->label, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006206out:
6207 return status;
6208}
6209
6210/*
6211 * Decode SYMLINK response
6212 */
Chuck Leverbf269552010-12-14 14:59:29 +00006213static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6214 struct nfs4_create_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006215{
Chuck Leverbf269552010-12-14 14:59:29 +00006216 return nfs4_xdr_dec_create(rqstp, xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006217}
6218
6219/*
6220 * Decode GETATTR response
6221 */
Chuck Leverbf269552010-12-14 14:59:29 +00006222static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6223 struct nfs4_getattr_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006224{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006225 struct compound_hdr hdr;
6226 int status;
Andy Adamson6c0195a2008-12-23 16:06:15 -05006227
Chuck Leverbf269552010-12-14 14:59:29 +00006228 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006229 if (status)
6230 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006231 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006232 if (status)
6233 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006234 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006235 if (status)
6236 goto out;
David Quigleyaa9c2662013-05-22 12:50:44 -04006237 status = decode_getfattr_label(xdr, res->fattr, res->label, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006238out:
6239 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006240}
6241
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006242/*
6243 * Encode an SETACL request
6244 */
Chuck Lever9f06c712010-12-14 14:59:18 +00006245static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr,
6246 struct nfs_setaclargs *args)
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006247{
Andy Adamson05d564f2008-12-23 16:06:15 -05006248 struct compound_hdr hdr = {
Benny Halevy66cc0422009-04-01 09:22:10 -04006249 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
Andy Adamson05d564f2008-12-23 16:06:15 -05006250 };
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006251
Chuck Lever9f06c712010-12-14 14:59:18 +00006252 encode_compound_hdr(xdr, req, &hdr);
6253 encode_sequence(xdr, &args->seq_args, &hdr);
6254 encode_putfh(xdr, args->fh, &hdr);
6255 encode_setacl(xdr, args, &hdr);
Andy Adamsond0179312008-12-23 16:06:17 -05006256 encode_nops(&hdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006257}
Andy Adamson05d564f2008-12-23 16:06:15 -05006258
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006259/*
6260 * Decode SETACL response
6261 */
6262static int
Chuck Leverbf269552010-12-14 14:59:29 +00006263nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
Benny Halevy73c403a2009-04-01 09:22:01 -04006264 struct nfs_setaclres *res)
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006265{
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006266 struct compound_hdr hdr;
6267 int status;
6268
Chuck Leverbf269552010-12-14 14:59:29 +00006269 status = decode_compound_hdr(xdr, &hdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006270 if (status)
6271 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006272 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006273 if (status)
6274 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006275 status = decode_putfh(xdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006276 if (status)
6277 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006278 status = decode_setattr(xdr);
J. Bruce Fields23ec6962005-06-22 17:16:22 +00006279out:
6280 return status;
6281}
Linus Torvalds1da177e2005-04-16 15:20:36 -07006282
6283/*
J. Bruce Fields029d1052005-06-22 17:16:22 +00006284 * Decode GETACL response
6285 */
6286static int
Chuck Leverbf269552010-12-14 14:59:29 +00006287nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
Benny Halevy663c79b2009-04-01 09:21:59 -04006288 struct nfs_getaclres *res)
J. Bruce Fields029d1052005-06-22 17:16:22 +00006289{
J. Bruce Fields029d1052005-06-22 17:16:22 +00006290 struct compound_hdr hdr;
6291 int status;
6292
Trond Myklebust331818f2012-02-03 18:30:53 -05006293 if (res->acl_scratch != NULL) {
6294 void *p = page_address(res->acl_scratch);
6295 xdr_set_scratch_buffer(xdr, p, PAGE_SIZE);
6296 }
Chuck Leverbf269552010-12-14 14:59:29 +00006297 status = decode_compound_hdr(xdr, &hdr);
J. Bruce Fields029d1052005-06-22 17:16:22 +00006298 if (status)
6299 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006300 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006301 if (status)
6302 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006303 status = decode_putfh(xdr);
J. Bruce Fields029d1052005-06-22 17:16:22 +00006304 if (status)
6305 goto out;
Andy Adamsonbf118a32011-12-07 11:55:27 -05006306 status = decode_getacl(xdr, rqstp, res);
J. Bruce Fields029d1052005-06-22 17:16:22 +00006307
6308out:
6309 return status;
6310}
6311
6312/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07006313 * Decode CLOSE response
6314 */
Chuck Leverbf269552010-12-14 14:59:29 +00006315static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6316 struct nfs_closeres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006317{
Andy Adamson05d564f2008-12-23 16:06:15 -05006318 struct compound_hdr hdr;
6319 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006320
Chuck Leverbf269552010-12-14 14:59:29 +00006321 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006322 if (status)
6323 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006324 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006325 if (status)
6326 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006327 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006328 if (status)
6329 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006330 status = decode_close(xdr, res);
Trond Myklebust516a6af2005-10-27 22:12:41 -04006331 if (status != 0)
6332 goto out;
6333 /*
6334 * Note: Server may do delete on close for this file
6335 * in which case the getattr call will fail with
6336 * an ESTALE error. Shouldn't be a problem,
6337 * though, since fattr->valid will remain unset.
6338 */
Trond Myklebust6926afd2012-01-07 13:22:46 -05006339 decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006340out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006341 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006342}
6343
6344/*
6345 * Decode OPEN response
6346 */
Chuck Leverbf269552010-12-14 14:59:29 +00006347static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6348 struct nfs_openres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006349{
Andy Adamson05d564f2008-12-23 16:06:15 -05006350 struct compound_hdr hdr;
6351 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006352
Chuck Leverbf269552010-12-14 14:59:29 +00006353 status = decode_compound_hdr(xdr, &hdr);
Trond Myklebust56ae19f2005-10-27 22:12:40 -04006354 if (status)
6355 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006356 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006357 if (status)
6358 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006359 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006360 if (status)
6361 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006362 status = decode_open(xdr, res);
Andy Adamson05d564f2008-12-23 16:06:15 -05006363 if (status)
6364 goto out;
Weston Andros Adamson01913b42012-09-06 15:54:27 -04006365 status = decode_getfh(xdr, &res->fh);
6366 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006367 goto out;
Weston Andros Adamsonae2bb032012-10-02 14:49:52 -07006368 if (res->access_request)
6369 decode_access(xdr, &res->access_supported, &res->access_result);
David Quigleyaa9c2662013-05-22 12:50:44 -04006370 decode_getfattr_label(xdr, res->f_attr, res->f_label, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006371out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006372 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006373}
6374
6375/*
6376 * Decode OPEN_CONFIRM response
6377 */
Chuck Leverbf269552010-12-14 14:59:29 +00006378static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp,
6379 struct xdr_stream *xdr,
6380 struct nfs_open_confirmres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006381{
Andy Adamson05d564f2008-12-23 16:06:15 -05006382 struct compound_hdr hdr;
6383 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006384
Chuck Leverbf269552010-12-14 14:59:29 +00006385 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006386 if (status)
6387 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006388 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006389 if (status)
6390 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006391 status = decode_open_confirm(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006392out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006393 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006394}
6395
6396/*
6397 * Decode OPEN response
6398 */
Chuck Leverbf269552010-12-14 14:59:29 +00006399static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp,
6400 struct xdr_stream *xdr,
6401 struct nfs_openres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006402{
Andy Adamson05d564f2008-12-23 16:06:15 -05006403 struct compound_hdr hdr;
6404 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006405
Chuck Leverbf269552010-12-14 14:59:29 +00006406 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006407 if (status)
6408 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006409 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006410 if (status)
6411 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006412 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006413 if (status)
6414 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006415 status = decode_open(xdr, res);
Andy Adamson05d564f2008-12-23 16:06:15 -05006416 if (status)
6417 goto out;
Weston Andros Adamsonae2bb032012-10-02 14:49:52 -07006418 if (res->access_request)
6419 decode_access(xdr, &res->access_supported, &res->access_result);
Trond Myklebust6926afd2012-01-07 13:22:46 -05006420 decode_getfattr(xdr, res->f_attr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006421out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006422 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006423}
6424
6425/*
6426 * Decode SETATTR response
6427 */
Chuck Leverbf269552010-12-14 14:59:29 +00006428static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp,
6429 struct xdr_stream *xdr,
6430 struct nfs_setattrres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006431{
Andy Adamson05d564f2008-12-23 16:06:15 -05006432 struct compound_hdr hdr;
6433 int status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006434
Chuck Leverbf269552010-12-14 14:59:29 +00006435 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006436 if (status)
6437 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006438 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006439 if (status)
6440 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006441 status = decode_putfh(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006442 if (status)
6443 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006444 status = decode_setattr(xdr);
Andy Adamson05d564f2008-12-23 16:06:15 -05006445 if (status)
6446 goto out;
David Quigleyaa9c2662013-05-22 12:50:44 -04006447 decode_getfattr_label(xdr, res->fattr, res->label, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006448out:
Andy Adamson05d564f2008-12-23 16:06:15 -05006449 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006450}
6451
6452/*
6453 * Decode LOCK response
6454 */
Chuck Leverbf269552010-12-14 14:59:29 +00006455static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6456 struct nfs_lock_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006457{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006458 struct compound_hdr hdr;
6459 int status;
6460
Chuck Leverbf269552010-12-14 14:59:29 +00006461 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006462 if (status)
6463 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006464 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006465 if (status)
6466 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006467 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006468 if (status)
6469 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006470 status = decode_lock(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006471out:
6472 return status;
6473}
6474
6475/*
6476 * Decode LOCKT response
6477 */
Chuck Leverbf269552010-12-14 14:59:29 +00006478static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6479 struct nfs_lockt_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006480{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006481 struct compound_hdr hdr;
6482 int status;
6483
Chuck Leverbf269552010-12-14 14:59:29 +00006484 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006485 if (status)
6486 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006487 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006488 if (status)
6489 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006490 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006491 if (status)
6492 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006493 status = decode_lockt(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006494out:
6495 return status;
6496}
6497
6498/*
6499 * Decode LOCKU response
6500 */
Chuck Leverbf269552010-12-14 14:59:29 +00006501static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6502 struct nfs_locku_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006503{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006504 struct compound_hdr hdr;
6505 int status;
6506
Chuck Leverbf269552010-12-14 14:59:29 +00006507 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006508 if (status)
6509 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006510 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006511 if (status)
6512 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006513 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006514 if (status)
6515 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006516 status = decode_locku(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006517out:
6518 return status;
6519}
6520
Chuck Leverbf269552010-12-14 14:59:29 +00006521static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp,
6522 struct xdr_stream *xdr, void *dummy)
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04006523{
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04006524 struct compound_hdr hdr;
6525 int status;
6526
Chuck Leverbf269552010-12-14 14:59:29 +00006527 status = decode_compound_hdr(xdr, &hdr);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04006528 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006529 status = decode_release_lockowner(xdr);
Trond Myklebustd3c7b7c2010-07-01 12:49:01 -04006530 return status;
6531}
6532
Linus Torvalds1da177e2005-04-16 15:20:36 -07006533/*
6534 * Decode READLINK response
6535 */
Chuck Leverbf269552010-12-14 14:59:29 +00006536static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp,
6537 struct xdr_stream *xdr,
Benny Halevyf50c7002009-04-01 09:21:55 -04006538 struct nfs4_readlink_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006539{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006540 struct compound_hdr hdr;
6541 int status;
6542
Chuck Leverbf269552010-12-14 14:59:29 +00006543 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006544 if (status)
6545 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006546 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006547 if (status)
6548 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006549 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006550 if (status)
6551 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006552 status = decode_readlink(xdr, rqstp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006553out:
6554 return status;
6555}
6556
6557/*
6558 * Decode READDIR response
6559 */
Chuck Leverbf269552010-12-14 14:59:29 +00006560static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6561 struct nfs4_readdir_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006562{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006563 struct compound_hdr hdr;
6564 int status;
6565
Chuck Leverbf269552010-12-14 14:59:29 +00006566 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006567 if (status)
6568 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006569 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006570 if (status)
6571 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006572 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006573 if (status)
6574 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006575 status = decode_readdir(xdr, rqstp, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006576out:
6577 return status;
6578}
6579
6580/*
6581 * Decode Read response
6582 */
Chuck Leverbf269552010-12-14 14:59:29 +00006583static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
Anna Schumaker9137bdf2014-05-06 09:12:25 -04006584 struct nfs_pgio_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006585{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006586 struct compound_hdr hdr;
6587 int status;
6588
Chuck Leverbf269552010-12-14 14:59:29 +00006589 status = decode_compound_hdr(xdr, &hdr);
Peng Taoaabff4d2014-08-27 10:47:14 +08006590 res->op_status = hdr.status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006591 if (status)
6592 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006593 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006594 if (status)
6595 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006596 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006597 if (status)
6598 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006599 status = decode_read(xdr, rqstp, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006600 if (!status)
6601 status = res->count;
6602out:
6603 return status;
6604}
6605
6606/*
6607 * Decode WRITE response
6608 */
Chuck Leverbf269552010-12-14 14:59:29 +00006609static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
Anna Schumaker9137bdf2014-05-06 09:12:25 -04006610 struct nfs_pgio_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006611{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006612 struct compound_hdr hdr;
6613 int status;
6614
Chuck Leverbf269552010-12-14 14:59:29 +00006615 status = decode_compound_hdr(xdr, &hdr);
Peng Taoaabff4d2014-08-27 10:47:14 +08006616 res->op_status = hdr.status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006617 if (status)
6618 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006619 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006620 if (status)
6621 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006622 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006623 if (status)
6624 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006625 status = decode_write(xdr, res);
Trond Myklebust4f9838c2005-10-27 22:12:44 -04006626 if (status)
6627 goto out;
Fred Isaman7ffd1062011-03-03 15:13:46 +00006628 if (res->fattr)
Trond Myklebust6926afd2012-01-07 13:22:46 -05006629 decode_getfattr(xdr, res->fattr, res->server);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006630 if (!status)
6631 status = res->count;
6632out:
6633 return status;
6634}
6635
6636/*
6637 * Decode COMMIT response
6638 */
Chuck Leverbf269552010-12-14 14:59:29 +00006639static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
Fred Isaman0b7c0152012-04-20 14:47:39 -04006640 struct nfs_commitres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006641{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006642 struct compound_hdr hdr;
6643 int status;
6644
Chuck Leverbf269552010-12-14 14:59:29 +00006645 status = decode_compound_hdr(xdr, &hdr);
Peng Taoaabff4d2014-08-27 10:47:14 +08006646 res->op_status = hdr.status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006647 if (status)
6648 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006649 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006650 if (status)
6651 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006652 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006653 if (status)
6654 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006655 status = decode_commit(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006656out:
6657 return status;
6658}
6659
6660/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006661 * Decode FSINFO response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006662 */
Chuck Leverbf269552010-12-14 14:59:29 +00006663static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
Benny Halevy3dda5e42009-04-01 09:21:57 -04006664 struct nfs4_fsinfo_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006665{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006666 struct compound_hdr hdr;
6667 int status;
6668
Chuck Leverbf269552010-12-14 14:59:29 +00006669 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006670 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006671 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006672 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006673 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006674 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006675 status = decode_fsinfo(xdr, res->fsinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006676 return status;
6677}
6678
6679/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006680 * Decode PATHCONF response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006681 */
Chuck Leverbf269552010-12-14 14:59:29 +00006682static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
Benny Halevyd45b2982009-04-01 09:21:58 -04006683 struct nfs4_pathconf_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006684{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006685 struct compound_hdr hdr;
6686 int status;
6687
Chuck Leverbf269552010-12-14 14:59:29 +00006688 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006689 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006690 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006691 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006692 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006693 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006694 status = decode_pathconf(xdr, res->pathconf);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006695 return status;
6696}
6697
6698/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006699 * Decode STATFS response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006700 */
Chuck Leverbf269552010-12-14 14:59:29 +00006701static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
Benny Halevy24ad1482009-04-01 09:21:56 -04006702 struct nfs4_statfs_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006703{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006704 struct compound_hdr hdr;
6705 int status;
6706
Chuck Leverbf269552010-12-14 14:59:29 +00006707 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006708 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006709 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006710 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006711 status = decode_putfh(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006712 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006713 status = decode_statfs(xdr, res->fsstat);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006714 return status;
6715}
6716
6717/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006718 * Decode GETATTR_BITMAP response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006719 */
Chuck Leverbf269552010-12-14 14:59:29 +00006720static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req,
6721 struct xdr_stream *xdr,
6722 struct nfs4_server_caps_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006723{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006724 struct compound_hdr hdr;
6725 int status;
6726
Chuck Leverbf269552010-12-14 14:59:29 +00006727 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006728 if (status)
6729 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006730 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006731 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006732 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006733 status = decode_putfh(xdr);
6734 if (status)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006735 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006736 status = decode_server_caps(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006737out:
6738 return status;
6739}
6740
6741/*
6742 * Decode RENEW response
6743 */
Chuck Leverbf269552010-12-14 14:59:29 +00006744static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6745 void *__unused)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006746{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006747 struct compound_hdr hdr;
6748 int status;
6749
Chuck Leverbf269552010-12-14 14:59:29 +00006750 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006751 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006752 status = decode_renew(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006753 return status;
6754}
6755
6756/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006757 * Decode SETCLIENTID response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006758 */
Chuck Leverbf269552010-12-14 14:59:29 +00006759static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req,
6760 struct xdr_stream *xdr,
6761 struct nfs4_setclientid_res *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006762{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006763 struct compound_hdr hdr;
6764 int status;
6765
Chuck Leverbf269552010-12-14 14:59:29 +00006766 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006767 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006768 status = decode_setclientid(xdr, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006769 return status;
6770}
6771
6772/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006773 * Decode SETCLIENTID_CONFIRM response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006774 */
Chuck Leverbf269552010-12-14 14:59:29 +00006775static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req,
Chuck Lever83ca7f52013-03-16 15:55:53 -04006776 struct xdr_stream *xdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006777{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006778 struct compound_hdr hdr;
6779 int status;
6780
Chuck Leverbf269552010-12-14 14:59:29 +00006781 status = decode_compound_hdr(xdr, &hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006782 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006783 status = decode_setclientid_confirm(xdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006784 return status;
6785}
6786
6787/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006788 * Decode DELEGRETURN response
Linus Torvalds1da177e2005-04-16 15:20:36 -07006789 */
Chuck Leverbf269552010-12-14 14:59:29 +00006790static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp,
6791 struct xdr_stream *xdr,
6792 struct nfs4_delegreturnres *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006793{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006794 struct compound_hdr hdr;
6795 int status;
6796
Chuck Leverbf269552010-12-14 14:59:29 +00006797 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006798 if (status)
6799 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006800 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006801 if (status)
Trond Myklebustfa178f22006-01-03 09:55:38 +01006802 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006803 status = decode_putfh(xdr);
Trond Myklebustfa178f22006-01-03 09:55:38 +01006804 if (status != 0)
6805 goto out;
Trond Myklebuste144cbc2012-04-28 16:05:03 -04006806 status = decode_getfattr(xdr, res->fattr, res->server);
Jeff Layton556ae3b2010-03-21 12:10:36 -04006807 if (status != 0)
6808 goto out;
Trond Myklebuste144cbc2012-04-28 16:05:03 -04006809 status = decode_delegreturn(xdr);
Trond Myklebustfa178f22006-01-03 09:55:38 +01006810out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07006811 return status;
6812}
6813
Trond Myklebust683b57b2006-06-09 09:34:22 -04006814/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006815 * Decode FS_LOCATIONS response
Trond Myklebust683b57b2006-06-09 09:34:22 -04006816 */
Chuck Leverbf269552010-12-14 14:59:29 +00006817static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req,
6818 struct xdr_stream *xdr,
Benny Halevy22958462009-04-01 09:22:02 -04006819 struct nfs4_fs_locations_res *res)
Trond Myklebust683b57b2006-06-09 09:34:22 -04006820{
Trond Myklebust683b57b2006-06-09 09:34:22 -04006821 struct compound_hdr hdr;
6822 int status;
6823
Chuck Leverbf269552010-12-14 14:59:29 +00006824 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006825 if (status)
6826 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006827 status = decode_sequence(xdr, &res->seq_res, req);
Andy Adamson9b7b9fc2009-04-01 09:22:11 -04006828 if (status)
Trond Myklebust683b57b2006-06-09 09:34:22 -04006829 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00006830 status = decode_putfh(xdr);
6831 if (status)
Trond Myklebust683b57b2006-06-09 09:34:22 -04006832 goto out;
Chuck Leverb03d7352013-10-17 14:12:50 -04006833 if (res->migration) {
6834 xdr_enter_page(xdr, PAGE_SIZE);
6835 status = decode_getfattr_generic(xdr,
6836 &res->fs_locations->fattr,
Trond Myklebust8b7e3f42012-01-30 15:43:56 -05006837 NULL, res->fs_locations,
David Quigleyaa9c2662013-05-22 12:50:44 -04006838 NULL, res->fs_locations->server);
Chuck Leverb03d7352013-10-17 14:12:50 -04006839 if (status)
6840 goto out;
6841 if (res->renew)
6842 status = decode_renew(xdr);
6843 } else {
6844 status = decode_lookup(xdr);
6845 if (status)
6846 goto out;
6847 xdr_enter_page(xdr, PAGE_SIZE);
6848 status = decode_getfattr_generic(xdr,
6849 &res->fs_locations->fattr,
6850 NULL, res->fs_locations,
6851 NULL, res->fs_locations->server);
6852 }
Trond Myklebust683b57b2006-06-09 09:34:22 -04006853out:
6854 return status;
6855}
6856
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00006857/*
6858 * Decode SECINFO response
6859 */
6860static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp,
6861 struct xdr_stream *xdr,
6862 struct nfs4_secinfo_res *res)
6863{
6864 struct compound_hdr hdr;
6865 int status;
6866
6867 status = decode_compound_hdr(xdr, &hdr);
6868 if (status)
6869 goto out;
6870 status = decode_sequence(xdr, &res->seq_res, rqstp);
6871 if (status)
6872 goto out;
6873 status = decode_putfh(xdr);
6874 if (status)
6875 goto out;
6876 status = decode_secinfo(xdr, res);
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00006877out:
6878 return status;
6879}
6880
Chuck Lever44c99932013-10-17 14:13:30 -04006881/*
6882 * Decode FSID_PRESENT response
6883 */
6884static int nfs4_xdr_dec_fsid_present(struct rpc_rqst *rqstp,
6885 struct xdr_stream *xdr,
6886 struct nfs4_fsid_present_res *res)
6887{
6888 struct compound_hdr hdr;
6889 int status;
6890
6891 status = decode_compound_hdr(xdr, &hdr);
6892 if (status)
6893 goto out;
6894 status = decode_sequence(xdr, &res->seq_res, rqstp);
6895 if (status)
6896 goto out;
6897 status = decode_putfh(xdr);
6898 if (status)
6899 goto out;
6900 status = decode_getfh(xdr, res->fh);
6901 if (status)
6902 goto out;
6903 if (res->renew)
6904 status = decode_renew(xdr);
6905out:
6906 return status;
6907}
6908
Benny Halevy99fe60d2009-04-01 09:22:29 -04006909#if defined(CONFIG_NFS_V4_1)
6910/*
Weston Andros Adamson7c44f1ae2012-05-24 13:22:50 -04006911 * Decode BIND_CONN_TO_SESSION response
6912 */
6913static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp,
6914 struct xdr_stream *xdr,
6915 void *res)
6916{
6917 struct compound_hdr hdr;
6918 int status;
6919
6920 status = decode_compound_hdr(xdr, &hdr);
6921 if (!status)
6922 status = decode_bind_conn_to_session(xdr, res);
6923 return status;
6924}
6925
6926/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006927 * Decode EXCHANGE_ID response
Benny Halevy99fe60d2009-04-01 09:22:29 -04006928 */
Chuck Leverbf269552010-12-14 14:59:29 +00006929static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp,
6930 struct xdr_stream *xdr,
Benny Halevy99fe60d2009-04-01 09:22:29 -04006931 void *res)
6932{
Benny Halevy99fe60d2009-04-01 09:22:29 -04006933 struct compound_hdr hdr;
6934 int status;
6935
Chuck Leverbf269552010-12-14 14:59:29 +00006936 status = decode_compound_hdr(xdr, &hdr);
Benny Halevy99fe60d2009-04-01 09:22:29 -04006937 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006938 status = decode_exchange_id(xdr, res);
Benny Halevy99fe60d2009-04-01 09:22:29 -04006939 return status;
6940}
Andy Adamson2050f0c2009-04-01 09:22:30 -04006941
6942/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006943 * Decode CREATE_SESSION response
Andy Adamsonfc931582009-04-01 09:22:31 -04006944 */
Chuck Leverbf269552010-12-14 14:59:29 +00006945static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp,
6946 struct xdr_stream *xdr,
Andy Adamsonfc931582009-04-01 09:22:31 -04006947 struct nfs41_create_session_res *res)
6948{
Andy Adamsonfc931582009-04-01 09:22:31 -04006949 struct compound_hdr hdr;
6950 int status;
6951
Chuck Leverbf269552010-12-14 14:59:29 +00006952 status = decode_compound_hdr(xdr, &hdr);
Andy Adamsonfc931582009-04-01 09:22:31 -04006953 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006954 status = decode_create_session(xdr, res);
Andy Adamsonfc931582009-04-01 09:22:31 -04006955 return status;
6956}
6957
6958/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006959 * Decode DESTROY_SESSION response
Andy Adamson0f3e66c2009-04-01 09:22:34 -04006960 */
Chuck Leverbf269552010-12-14 14:59:29 +00006961static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp,
6962 struct xdr_stream *xdr,
6963 void *res)
Andy Adamson0f3e66c2009-04-01 09:22:34 -04006964{
Andy Adamson0f3e66c2009-04-01 09:22:34 -04006965 struct compound_hdr hdr;
6966 int status;
6967
Chuck Leverbf269552010-12-14 14:59:29 +00006968 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04006969 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00006970 status = decode_destroy_session(xdr, res);
Andy Adamson0f3e66c2009-04-01 09:22:34 -04006971 return status;
6972}
6973
6974/*
Trond Myklebust66245532012-05-25 17:18:09 -04006975 * Decode DESTROY_CLIENTID response
6976 */
6977static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp,
6978 struct xdr_stream *xdr,
6979 void *res)
6980{
6981 struct compound_hdr hdr;
6982 int status;
6983
6984 status = decode_compound_hdr(xdr, &hdr);
6985 if (!status)
6986 status = decode_destroy_clientid(xdr, res);
6987 return status;
6988}
6989
6990/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05006991 * Decode SEQUENCE response
Andy Adamsonfc01cea2009-04-01 09:22:36 -04006992 */
Chuck Leverbf269552010-12-14 14:59:29 +00006993static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp,
6994 struct xdr_stream *xdr,
Andy Adamsonfc01cea2009-04-01 09:22:36 -04006995 struct nfs4_sequence_res *res)
6996{
Andy Adamsonfc01cea2009-04-01 09:22:36 -04006997 struct compound_hdr hdr;
6998 int status;
6999
Chuck Leverbf269552010-12-14 14:59:29 +00007000 status = decode_compound_hdr(xdr, &hdr);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04007001 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00007002 status = decode_sequence(xdr, res, rqstp);
Andy Adamsonfc01cea2009-04-01 09:22:36 -04007003 return status;
7004}
7005
7006/*
Ricardo Labiaga8b173212009-12-05 16:08:39 -05007007 * Decode GET_LEASE_TIME response
Andy Adamson2050f0c2009-04-01 09:22:30 -04007008 */
Chuck Leverbf269552010-12-14 14:59:29 +00007009static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp,
7010 struct xdr_stream *xdr,
Andy Adamson2050f0c2009-04-01 09:22:30 -04007011 struct nfs4_get_lease_time_res *res)
7012{
Andy Adamson2050f0c2009-04-01 09:22:30 -04007013 struct compound_hdr hdr;
7014 int status;
7015
Chuck Leverbf269552010-12-14 14:59:29 +00007016 status = decode_compound_hdr(xdr, &hdr);
Andy Adamson2050f0c2009-04-01 09:22:30 -04007017 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00007018 status = decode_sequence(xdr, &res->lr_seq_res, rqstp);
Andy Adamson2050f0c2009-04-01 09:22:30 -04007019 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00007020 status = decode_putrootfh(xdr);
Andy Adamson2050f0c2009-04-01 09:22:30 -04007021 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00007022 status = decode_fsinfo(xdr, res->lr_fsinfo);
Andy Adamson2050f0c2009-04-01 09:22:30 -04007023 return status;
7024}
Ricardo Labiaga180197532009-12-05 16:08:40 -05007025
7026/*
7027 * Decode RECLAIM_COMPLETE response
7028 */
Chuck Leverbf269552010-12-14 14:59:29 +00007029static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp,
7030 struct xdr_stream *xdr,
Ricardo Labiaga180197532009-12-05 16:08:40 -05007031 struct nfs41_reclaim_complete_res *res)
7032{
Ricardo Labiaga180197532009-12-05 16:08:40 -05007033 struct compound_hdr hdr;
7034 int status;
7035
Chuck Leverbf269552010-12-14 14:59:29 +00007036 status = decode_compound_hdr(xdr, &hdr);
Ricardo Labiaga180197532009-12-05 16:08:40 -05007037 if (!status)
Chuck Leverbf269552010-12-14 14:59:29 +00007038 status = decode_sequence(xdr, &res->seq_res, rqstp);
Ricardo Labiaga180197532009-12-05 16:08:40 -05007039 if (!status)
Himangi Saraogi8ee2b782014-06-27 00:09:09 +05307040 status = decode_reclaim_complete(xdr, NULL);
Ricardo Labiaga180197532009-12-05 16:08:40 -05007041 return status;
7042}
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007043
7044/*
7045 * Decode GETDEVINFO response
7046 */
Chuck Leverbf269552010-12-14 14:59:29 +00007047static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp,
7048 struct xdr_stream *xdr,
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007049 struct nfs4_getdeviceinfo_res *res)
7050{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007051 struct compound_hdr hdr;
7052 int status;
7053
Chuck Leverbf269552010-12-14 14:59:29 +00007054 status = decode_compound_hdr(xdr, &hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007055 if (status != 0)
7056 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00007057 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007058 if (status != 0)
7059 goto out;
Trond Myklebust4e590802015-03-09 14:01:25 -04007060 status = decode_getdeviceinfo(xdr, res);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007061out:
7062 return status;
7063}
7064
7065/*
7066 * Decode LAYOUTGET response
7067 */
Chuck Leverbf269552010-12-14 14:59:29 +00007068static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp,
7069 struct xdr_stream *xdr,
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007070 struct nfs4_layoutget_res *res)
7071{
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007072 struct compound_hdr hdr;
7073 int status;
7074
Chuck Leverbf269552010-12-14 14:59:29 +00007075 status = decode_compound_hdr(xdr, &hdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007076 if (status)
7077 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00007078 status = decode_sequence(xdr, &res->seq_res, rqstp);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007079 if (status)
7080 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00007081 status = decode_putfh(xdr);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007082 if (status)
7083 goto out;
Chuck Leverbf269552010-12-14 14:59:29 +00007084 status = decode_layoutget(xdr, rqstp, res);
Andy Adamsonb1f69b72010-10-20 00:18:03 -04007085out:
7086 return status;
7087}
Andy Adamson863a3c62011-03-23 13:27:54 +00007088
7089/*
Benny Halevycbe82602011-05-22 19:52:37 +03007090 * Decode LAYOUTRETURN response
7091 */
7092static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp,
7093 struct xdr_stream *xdr,
7094 struct nfs4_layoutreturn_res *res)
7095{
7096 struct compound_hdr hdr;
7097 int status;
7098
7099 status = decode_compound_hdr(xdr, &hdr);
7100 if (status)
7101 goto out;
7102 status = decode_sequence(xdr, &res->seq_res, rqstp);
7103 if (status)
7104 goto out;
7105 status = decode_putfh(xdr);
7106 if (status)
7107 goto out;
7108 status = decode_layoutreturn(xdr, res);
7109out:
7110 return status;
7111}
7112
7113/*
Andy Adamson863a3c62011-03-23 13:27:54 +00007114 * Decode LAYOUTCOMMIT response
7115 */
7116static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp,
7117 struct xdr_stream *xdr,
7118 struct nfs4_layoutcommit_res *res)
7119{
7120 struct compound_hdr hdr;
7121 int status;
7122
7123 status = decode_compound_hdr(xdr, &hdr);
7124 if (status)
7125 goto out;
7126 status = decode_sequence(xdr, &res->seq_res, rqstp);
7127 if (status)
7128 goto out;
7129 status = decode_putfh(xdr);
7130 if (status)
7131 goto out;
7132 status = decode_layoutcommit(xdr, rqstp, res);
7133 if (status)
7134 goto out;
Trond Myklebust6926afd2012-01-07 13:22:46 -05007135 decode_getfattr(xdr, res->fattr, res->server);
Andy Adamson863a3c62011-03-23 13:27:54 +00007136out:
7137 return status;
7138}
Bryan Schumakerfca78d62011-06-02 14:59:07 -04007139
7140/*
7141 * Decode SECINFO_NO_NAME response
7142 */
7143static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp,
7144 struct xdr_stream *xdr,
7145 struct nfs4_secinfo_res *res)
7146{
7147 struct compound_hdr hdr;
7148 int status;
7149
7150 status = decode_compound_hdr(xdr, &hdr);
7151 if (status)
7152 goto out;
7153 status = decode_sequence(xdr, &res->seq_res, rqstp);
7154 if (status)
7155 goto out;
7156 status = decode_putrootfh(xdr);
7157 if (status)
7158 goto out;
Bryan Schumaker31e4dda2012-04-27 13:27:38 -04007159 status = decode_secinfo_no_name(xdr, res);
Bryan Schumakerfca78d62011-06-02 14:59:07 -04007160out:
7161 return status;
7162}
Bryan Schumaker7d974792011-06-02 14:59:08 -04007163
7164/*
7165 * Decode TEST_STATEID response
7166 */
7167static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp,
7168 struct xdr_stream *xdr,
7169 struct nfs41_test_stateid_res *res)
7170{
7171 struct compound_hdr hdr;
7172 int status;
7173
7174 status = decode_compound_hdr(xdr, &hdr);
7175 if (status)
7176 goto out;
7177 status = decode_sequence(xdr, &res->seq_res, rqstp);
7178 if (status)
7179 goto out;
7180 status = decode_test_stateid(xdr, res);
7181out:
7182 return status;
7183}
Bryan Schumaker9aeda352011-06-02 14:59:09 -04007184
7185/*
7186 * Decode FREE_STATEID response
7187 */
7188static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp,
7189 struct xdr_stream *xdr,
7190 struct nfs41_free_stateid_res *res)
7191{
7192 struct compound_hdr hdr;
7193 int status;
7194
7195 status = decode_compound_hdr(xdr, &hdr);
7196 if (status)
7197 goto out;
7198 status = decode_sequence(xdr, &res->seq_res, rqstp);
7199 if (status)
7200 goto out;
7201 status = decode_free_stateid(xdr, res);
7202out:
7203 return status;
7204}
Benny Halevy99fe60d2009-04-01 09:22:29 -04007205#endif /* CONFIG_NFS_V4_1 */
7206
Chuck Lever573c4e12010-12-14 14:58:11 +00007207/**
7208 * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in
7209 * the local page cache.
7210 * @xdr: XDR stream where entry resides
7211 * @entry: buffer to fill in with entry data
7212 * @plus: boolean indicating whether this should be a readdirplus entry
7213 *
7214 * Returns zero if successful, otherwise a negative errno value is
7215 * returned.
7216 *
7217 * This function is not invoked during READDIR reply decoding, but
7218 * rather whenever an application invokes the getdents(2) system call
7219 * on a directory already in our cache.
7220 */
7221int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
7222 int plus)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007223{
Trond Myklebust256e48b2012-06-21 11:18:13 -04007224 unsigned int savep;
Fred Isamandae100c2011-07-30 20:52:37 -04007225 uint32_t bitmap[3] = {0};
Linus Torvalds1da177e2005-04-16 15:20:36 -07007226 uint32_t len;
Bryan Schumakerbabddc72010-10-20 15:44:29 -04007227 __be32 *p = xdr_inline_decode(xdr, 4);
7228 if (unlikely(!p))
7229 goto out_overflow;
Chuck Leverc08e76d2011-01-28 12:40:55 -05007230 if (*p == xdr_zero) {
Bryan Schumakerbabddc72010-10-20 15:44:29 -04007231 p = xdr_inline_decode(xdr, 4);
7232 if (unlikely(!p))
7233 goto out_overflow;
Chuck Leverc08e76d2011-01-28 12:40:55 -05007234 if (*p == xdr_zero)
Chuck Lever573c4e12010-12-14 14:58:11 +00007235 return -EAGAIN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007236 entry->eof = 1;
Chuck Lever573c4e12010-12-14 14:58:11 +00007237 return -EBADCOOKIE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007238 }
7239
Bryan Schumakerbabddc72010-10-20 15:44:29 -04007240 p = xdr_inline_decode(xdr, 12);
7241 if (unlikely(!p))
7242 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007243 entry->prev_cookie = entry->cookie;
7244 p = xdr_decode_hyper(p, &entry->cookie);
Chuck Leverc08e76d2011-01-28 12:40:55 -05007245 entry->len = be32_to_cpup(p);
Bryan Schumakerbabddc72010-10-20 15:44:29 -04007246
Trond Myklebust9af8c222010-10-24 11:52:55 -04007247 p = xdr_inline_decode(xdr, entry->len);
Bryan Schumakerbabddc72010-10-20 15:44:29 -04007248 if (unlikely(!p))
7249 goto out_overflow;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007250 entry->name = (const char *) p;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007251
7252 /*
7253 * In case the server doesn't return an inode number,
7254 * we fake one here. (We don't use inode number 0,
7255 * since glibc seems to choke on it...)
7256 */
7257 entry->ino = 1;
Trond Myklebust4f082222010-10-24 13:14:02 -04007258 entry->fattr->valid = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007259
Trond Myklebust9af8c222010-10-24 11:52:55 -04007260 if (decode_attr_bitmap(xdr, bitmap) < 0)
Bryan Schumakerbabddc72010-10-20 15:44:29 -04007261 goto out_overflow;
Trond Myklebust9af8c222010-10-24 11:52:55 -04007262
Trond Myklebust256e48b2012-06-21 11:18:13 -04007263 if (decode_attr_length(xdr, &len, &savep) < 0)
Trond Myklebust9af8c222010-10-24 11:52:55 -04007264 goto out_overflow;
7265
Chuck Lever573c4e12010-12-14 14:58:11 +00007266 if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh,
David Quigleyaa9c2662013-05-22 12:50:44 -04007267 NULL, entry->label, entry->server) < 0)
Trond Myklebust9af8c222010-10-24 11:52:55 -04007268 goto out_overflow;
Trond Myklebust28331a42011-04-27 13:47:52 -04007269 if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID)
7270 entry->ino = entry->fattr->mounted_on_fileid;
7271 else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID)
Trond Myklebust9af8c222010-10-24 11:52:55 -04007272 entry->ino = entry->fattr->fileid;
7273
Trond Myklebust0b26a0b2010-11-20 14:26:44 -05007274 entry->d_type = DT_UNKNOWN;
7275 if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE)
7276 entry->d_type = nfs_umode_to_dtype(entry->fattr->mode);
7277
Chuck Lever573c4e12010-12-14 14:58:11 +00007278 return 0;
Bryan Schumakerbabddc72010-10-20 15:44:29 -04007279
7280out_overflow:
7281 print_overflow_msg(__func__, xdr);
Chuck Lever573c4e12010-12-14 14:58:11 +00007282 return -EAGAIN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007283}
7284
7285/*
7286 * We need to translate between nfs status return values and
7287 * the local errno values which may not be the same.
7288 */
7289static struct {
7290 int stat;
7291 int errno;
7292} nfs_errtbl[] = {
7293 { NFS4_OK, 0 },
Benny Halevy856dff32008-03-31 17:39:06 +03007294 { NFS4ERR_PERM, -EPERM },
7295 { NFS4ERR_NOENT, -ENOENT },
7296 { NFS4ERR_IO, -errno_NFSERR_IO},
7297 { NFS4ERR_NXIO, -ENXIO },
7298 { NFS4ERR_ACCESS, -EACCES },
7299 { NFS4ERR_EXIST, -EEXIST },
7300 { NFS4ERR_XDEV, -EXDEV },
7301 { NFS4ERR_NOTDIR, -ENOTDIR },
7302 { NFS4ERR_ISDIR, -EISDIR },
7303 { NFS4ERR_INVAL, -EINVAL },
7304 { NFS4ERR_FBIG, -EFBIG },
7305 { NFS4ERR_NOSPC, -ENOSPC },
7306 { NFS4ERR_ROFS, -EROFS },
7307 { NFS4ERR_MLINK, -EMLINK },
7308 { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG },
7309 { NFS4ERR_NOTEMPTY, -ENOTEMPTY },
7310 { NFS4ERR_DQUOT, -EDQUOT },
7311 { NFS4ERR_STALE, -ESTALE },
7312 { NFS4ERR_BADHANDLE, -EBADHANDLE },
Benny Halevy856dff32008-03-31 17:39:06 +03007313 { NFS4ERR_BAD_COOKIE, -EBADCOOKIE },
7314 { NFS4ERR_NOTSUPP, -ENOTSUPP },
7315 { NFS4ERR_TOOSMALL, -ETOOSMALL },
Trond Myklebustfdcb4572010-02-08 09:32:40 -05007316 { NFS4ERR_SERVERFAULT, -EREMOTEIO },
Benny Halevy856dff32008-03-31 17:39:06 +03007317 { NFS4ERR_BADTYPE, -EBADTYPE },
7318 { NFS4ERR_LOCKED, -EAGAIN },
Benny Halevy856dff32008-03-31 17:39:06 +03007319 { NFS4ERR_SYMLINK, -ELOOP },
7320 { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP },
7321 { NFS4ERR_DEADLOCK, -EDEADLK },
Benny Halevy856dff32008-03-31 17:39:06 +03007322 { -1, -EIO }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007323};
7324
7325/*
7326 * Convert an NFS error code to a local one.
7327 * This one is used jointly by NFSv2 and NFSv3.
7328 */
7329static int
David Howells0a8ea432006-08-22 20:06:08 -04007330nfs4_stat_to_errno(int stat)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007331{
7332 int i;
7333 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
7334 if (nfs_errtbl[i].stat == stat)
7335 return nfs_errtbl[i].errno;
7336 }
7337 if (stat <= 10000 || stat > 10100) {
7338 /* The server is looney tunes. */
Trond Myklebustfdcb4572010-02-08 09:32:40 -05007339 return -EREMOTEIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007340 }
7341 /* If we cannot translate the error, the recovery routines should
7342 * handle it.
7343 * Note: remaining NFSv4 error codes have values > 10000, so should
7344 * not conflict with native Linux error codes.
7345 */
Benny Halevy856dff32008-03-31 17:39:06 +03007346 return -stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007347}
7348
Anna Schumaker1c6dcbe2014-09-26 13:58:48 -04007349#ifdef CONFIG_NFS_V4_2
7350#include "nfs42xdr.c"
7351#endif /* CONFIG_NFS_V4_2 */
7352
Linus Torvalds1da177e2005-04-16 15:20:36 -07007353#define PROC(proc, argtype, restype) \
7354[NFSPROC4_CLNT_##proc] = { \
7355 .p_proc = NFSPROC4_COMPOUND, \
Chuck Lever9f06c712010-12-14 14:59:18 +00007356 .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \
Chuck Leverbf269552010-12-14 14:59:29 +00007357 .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \
Chuck Lever2bea90d2007-03-29 16:47:53 -04007358 .p_arglen = NFS4_##argtype##_sz, \
7359 .p_replen = NFS4_##restype##_sz, \
Chuck Levercc0175c2006-03-20 13:44:22 -05007360 .p_statidx = NFSPROC4_CLNT_##proc, \
7361 .p_name = #proc, \
Andy Adamson05d564f2008-12-23 16:06:15 -05007362}
Linus Torvalds1da177e2005-04-16 15:20:36 -07007363
7364struct rpc_procinfo nfs4_procedures[] = {
Chuck Lever7d93bd712010-12-14 14:57:42 +00007365 PROC(READ, enc_read, dec_read),
7366 PROC(WRITE, enc_write, dec_write),
7367 PROC(COMMIT, enc_commit, dec_commit),
7368 PROC(OPEN, enc_open, dec_open),
7369 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
7370 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
7371 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
7372 PROC(CLOSE, enc_close, dec_close),
7373 PROC(SETATTR, enc_setattr, dec_setattr),
7374 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
7375 PROC(RENEW, enc_renew, dec_renew),
7376 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
7377 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
7378 PROC(LOCK, enc_lock, dec_lock),
7379 PROC(LOCKT, enc_lockt, dec_lockt),
7380 PROC(LOCKU, enc_locku, dec_locku),
7381 PROC(ACCESS, enc_access, dec_access),
7382 PROC(GETATTR, enc_getattr, dec_getattr),
7383 PROC(LOOKUP, enc_lookup, dec_lookup),
7384 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
7385 PROC(REMOVE, enc_remove, dec_remove),
7386 PROC(RENAME, enc_rename, dec_rename),
7387 PROC(LINK, enc_link, dec_link),
7388 PROC(SYMLINK, enc_symlink, dec_symlink),
7389 PROC(CREATE, enc_create, dec_create),
7390 PROC(PATHCONF, enc_pathconf, dec_pathconf),
7391 PROC(STATFS, enc_statfs, dec_statfs),
7392 PROC(READLINK, enc_readlink, dec_readlink),
7393 PROC(READDIR, enc_readdir, dec_readdir),
7394 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
7395 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
7396 PROC(GETACL, enc_getacl, dec_getacl),
7397 PROC(SETACL, enc_setacl, dec_setacl),
7398 PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
7399 PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner),
Bryan Schumaker5a5ea0d2011-03-24 17:12:29 +00007400 PROC(SECINFO, enc_secinfo, dec_secinfo),
Chuck Lever44c99932013-10-17 14:13:30 -04007401 PROC(FSID_PRESENT, enc_fsid_present, dec_fsid_present),
Benny Halevy99fe60d2009-04-01 09:22:29 -04007402#if defined(CONFIG_NFS_V4_1)
Chuck Lever7d93bd712010-12-14 14:57:42 +00007403 PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
7404 PROC(CREATE_SESSION, enc_create_session, dec_create_session),
7405 PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session),
7406 PROC(SEQUENCE, enc_sequence, dec_sequence),
7407 PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time),
7408 PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete),
7409 PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo),
7410 PROC(LAYOUTGET, enc_layoutget, dec_layoutget),
Andy Adamson863a3c62011-03-23 13:27:54 +00007411 PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit),
Benny Halevycbe82602011-05-22 19:52:37 +03007412 PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn),
Bryan Schumakerfca78d62011-06-02 14:59:07 -04007413 PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name),
Bryan Schumaker7d974792011-06-02 14:59:08 -04007414 PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid),
Bryan Schumaker9aeda352011-06-02 14:59:09 -04007415 PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid),
Trond Myklebustad24ecf2012-05-25 17:11:42 -04007416 PROC(BIND_CONN_TO_SESSION,
7417 enc_bind_conn_to_session, dec_bind_conn_to_session),
Trond Myklebust66245532012-05-25 17:18:09 -04007418 PROC(DESTROY_CLIENTID, enc_destroy_clientid, dec_destroy_clientid),
Benny Halevy99fe60d2009-04-01 09:22:29 -04007419#endif /* CONFIG_NFS_V4_1 */
Anna Schumaker1c6dcbe2014-09-26 13:58:48 -04007420#ifdef CONFIG_NFS_V4_2
7421 PROC(SEEK, enc_seek, dec_seek),
Anna Schumakerf4ac1672014-11-25 13:18:15 -05007422 PROC(ALLOCATE, enc_allocate, dec_allocate),
Anna Schumaker624bd5b2014-11-25 13:18:16 -05007423 PROC(DEALLOCATE, enc_deallocate, dec_deallocate),
Anna Schumaker1c6dcbe2014-09-26 13:58:48 -04007424#endif /* CONFIG_NFS_V4_2 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007425};
7426
Trond Myklebusta613fa12012-01-20 13:53:56 -05007427const struct rpc_version nfs_version4 = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007428 .number = 4,
Tobias Klausere8c96f82006-03-24 03:15:34 -08007429 .nrprocs = ARRAY_SIZE(nfs4_procedures),
Linus Torvalds1da177e2005-04-16 15:20:36 -07007430 .procs = nfs4_procedures
7431};
7432
7433/*
7434 * Local variables:
7435 * c-basic-offset: 8
7436 * End:
7437 */