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NFSv4: Convert open() into an asynchronous RPC call
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / fs / nfs / nfs4xdr.c
CommitLineData
1da177e4
LT		 1/*
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>
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 *
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of the University nor the names of its
22 * contributors may be used to endorse or promote products derived
23 * from this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
27 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
28 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
32 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
34 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 */
37
38#include <linux/param.h>
39#include <linux/time.h>
40#include <linux/mm.h>
41#include <linux/slab.h>
42#include <linux/utsname.h>
43#include <linux/errno.h>
44#include <linux/string.h>
45#include <linux/in.h>
46#include <linux/pagemap.h>
47#include <linux/proc_fs.h>
48#include <linux/kdev_t.h>
49#include <linux/sunrpc/clnt.h>
50#include <linux/nfs.h>
51#include <linux/nfs4.h>
52#include <linux/nfs_fs.h>
53#include <linux/nfs_idmap.h>
4ce79717 54#include "nfs4_fs.h"
1da177e4
LT		 55
56#define NFSDBG_FACILITY NFSDBG_XDR
57
58/* Mapping from NFS error code to "errno" error code. */
59#define errno_NFSERR_IO EIO
60
61static int nfs_stat_to_errno(int);
62
63/* NFSv4 COMPOUND tags are only wanted for debugging purposes */
64#ifdef DEBUG
65#define NFS4_MAXTAGLEN 20
66#else
67#define NFS4_MAXTAGLEN 0
68#endif
69
70/* lock,open owner id:
71 * we currently use size 1 (u32) out of (NFS4_OPAQUE_LIMIT >> 2)
72 */
73#define owner_id_maxsz (1 + 1)
74#define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
75#define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
76#define op_encode_hdr_maxsz (1)
77#define op_decode_hdr_maxsz (2)
78#define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
79 (NFS4_FHSIZE >> 2))
80#define decode_putfh_maxsz (op_decode_hdr_maxsz)
81#define encode_putrootfh_maxsz (op_encode_hdr_maxsz)
82#define decode_putrootfh_maxsz (op_decode_hdr_maxsz)
83#define encode_getfh_maxsz (op_encode_hdr_maxsz)
84#define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
85 ((3+NFS4_FHSIZE) >> 2))
96928206
BF		 86#define nfs4_fattr_bitmap_maxsz 3
87#define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
1da177e4
LT		 88#define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
89#define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
96928206
BF		 90/* This is based on getfattr, which uses the most attributes: */
91#define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
92 3 + 3 + 3 + 2 * nfs4_name_maxsz))
93#define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
94 nfs4_fattr_value_maxsz)
95#define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
1da177e4
LT		 96#define encode_savefh_maxsz (op_encode_hdr_maxsz)
97#define decode_savefh_maxsz (op_decode_hdr_maxsz)
56ae19f3
TM		 98#define encode_restorefh_maxsz (op_encode_hdr_maxsz)
99#define decode_restorefh_maxsz (op_decode_hdr_maxsz)
1da177e4
LT		 100#define encode_fsinfo_maxsz (op_encode_hdr_maxsz + 2)
101#define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11)
102#define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
103#define decode_renew_maxsz (op_decode_hdr_maxsz)
104#define encode_setclientid_maxsz \
105 (op_encode_hdr_maxsz + \
106 4 /*server->ip_addr*/ + \
107 1 /*Netid*/ + \
108 6 /*uaddr*/ + \
109 6 + (NFS4_VERIFIER_SIZE >> 2))
110#define decode_setclientid_maxsz \
111 (op_decode_hdr_maxsz + \
112 2 + \
113 1024) /* large value for CLID_INUSE */
114#define encode_setclientid_confirm_maxsz \
115 (op_encode_hdr_maxsz + \
116 3 + (NFS4_VERIFIER_SIZE >> 2))
117#define decode_setclientid_confirm_maxsz \
118 (op_decode_hdr_maxsz)
119#define encode_lookup_maxsz (op_encode_hdr_maxsz + \
120 1 + ((3 + NFS4_FHSIZE) >> 2))
121#define encode_remove_maxsz (op_encode_hdr_maxsz + \
122 nfs4_name_maxsz)
123#define encode_rename_maxsz (op_encode_hdr_maxsz + \
124 2 * nfs4_name_maxsz)
125#define decode_rename_maxsz (op_decode_hdr_maxsz + 5 + 5)
126#define encode_link_maxsz (op_encode_hdr_maxsz + \
127 nfs4_name_maxsz)
128#define decode_link_maxsz (op_decode_hdr_maxsz + 5)
129#define encode_symlink_maxsz (op_encode_hdr_maxsz + \
130 1 + nfs4_name_maxsz + \
131 nfs4_path_maxsz + \
96928206 132 nfs4_fattr_maxsz)
1da177e4
LT		 133#define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
134#define encode_create_maxsz (op_encode_hdr_maxsz + \
135 2 + nfs4_name_maxsz + \
96928206 136 nfs4_fattr_maxsz)
1da177e4
LT		 137#define decode_create_maxsz (op_decode_hdr_maxsz + 8)
138#define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
139#define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
140#define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
141#define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
142#define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
143 encode_putfh_maxsz + \
144 op_encode_hdr_maxsz + 7)
145#define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
146 decode_putfh_maxsz + \
147 op_decode_hdr_maxsz + 2)
148#define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
149 encode_putfh_maxsz + \
150 op_encode_hdr_maxsz)
151#define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
152 decode_putfh_maxsz + \
153 op_decode_hdr_maxsz)
154#define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
155 encode_putfh_maxsz + \
156 op_encode_hdr_maxsz + 9)
157#define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
158 decode_putfh_maxsz + \
159 op_decode_hdr_maxsz + 2)
160#define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
161 encode_putfh_maxsz + \
4f9838c7
TM		 162 op_encode_hdr_maxsz + 8 + \
163 encode_getattr_maxsz)
1da177e4
LT		 164#define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
165 decode_putfh_maxsz + \
4f9838c7
TM		 166 op_decode_hdr_maxsz + 4 + \
167 decode_getattr_maxsz)
1da177e4
LT		 168#define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
169 encode_putfh_maxsz + \
4f9838c7
TM		 170 op_encode_hdr_maxsz + 3 + \
171 encode_getattr_maxsz)
1da177e4
LT		 172#define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
173 decode_putfh_maxsz + \
4f9838c7
TM		 174 op_decode_hdr_maxsz + 2 + \
175 decode_getattr_maxsz)
1da177e4
LT		 176#define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
177 encode_putfh_maxsz + \
178 op_encode_hdr_maxsz + \
179 13 + 3 + 2 + 64 + \
180 encode_getattr_maxsz + \
181 encode_getfh_maxsz)
182#define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
183 decode_putfh_maxsz + \
184 op_decode_hdr_maxsz + 4 + 5 + 2 + 3 + \
185 decode_getattr_maxsz + \
186 decode_getfh_maxsz)
187#define NFS4_enc_open_confirm_sz \
188 (compound_encode_hdr_maxsz + \
189 encode_putfh_maxsz + \
190 op_encode_hdr_maxsz + 5)
191#define NFS4_dec_open_confirm_sz (compound_decode_hdr_maxsz + \
192 decode_putfh_maxsz + \
193 op_decode_hdr_maxsz + 4)
194#define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
195 encode_putfh_maxsz + \
196 op_encode_hdr_maxsz + \
197 11)
198#define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
199 decode_putfh_maxsz + \
200 op_decode_hdr_maxsz + \
201 4 + 5 + 2 + 3)
202#define NFS4_enc_open_downgrade_sz \
203 (compound_encode_hdr_maxsz + \
204 encode_putfh_maxsz + \
516a6af6
TM		 205 op_encode_hdr_maxsz + 7 + \
206 encode_getattr_maxsz)
1da177e4
LT		 207#define NFS4_dec_open_downgrade_sz \
208 (compound_decode_hdr_maxsz + \
209 decode_putfh_maxsz + \
516a6af6
TM		 210 op_decode_hdr_maxsz + 4 + \
211 decode_getattr_maxsz)
1da177e4
LT		 212#define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
213 encode_putfh_maxsz + \
516a6af6
TM		 214 op_encode_hdr_maxsz + 5 + \
215 encode_getattr_maxsz)
1da177e4
LT		 216#define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
217 decode_putfh_maxsz + \
516a6af6
TM		 218 op_decode_hdr_maxsz + 4 + \
219 decode_getattr_maxsz)
1da177e4
LT		 220#define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
221 encode_putfh_maxsz + \
222 op_encode_hdr_maxsz + 4 + \
96928206 223 nfs4_fattr_maxsz + \
1da177e4
LT		 224 encode_getattr_maxsz)
225#define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
226 decode_putfh_maxsz + \
227 op_decode_hdr_maxsz + 3)
228#define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
229 encode_putfh_maxsz + \
230 encode_fsinfo_maxsz)
231#define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
232 decode_putfh_maxsz + \
233 decode_fsinfo_maxsz)
234#define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
235 encode_renew_maxsz)
236#define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
237 decode_renew_maxsz)
238#define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
239 encode_setclientid_maxsz)
240#define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
241 decode_setclientid_maxsz)
242#define NFS4_enc_setclientid_confirm_sz \
243 (compound_encode_hdr_maxsz + \
244 encode_setclientid_confirm_maxsz + \
245 encode_putrootfh_maxsz + \
246 encode_fsinfo_maxsz)
247#define NFS4_dec_setclientid_confirm_sz \
248 (compound_decode_hdr_maxsz + \
249 decode_setclientid_confirm_maxsz + \
250 decode_putrootfh_maxsz + \
251 decode_fsinfo_maxsz)
252#define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
253 encode_putfh_maxsz + \
254 encode_getattr_maxsz + \
255 op_encode_hdr_maxsz + \
256 1 + 1 + 2 + 2 + \
257 1 + 4 + 1 + 2 + \
258 owner_id_maxsz)
259#define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
260 decode_putfh_maxsz + \
261 decode_getattr_maxsz + \
262 op_decode_hdr_maxsz + \
263 2 + 2 + 1 + 2 + \
264 owner_id_maxsz)
265#define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
266 encode_putfh_maxsz + \
267 encode_getattr_maxsz + \
268 op_encode_hdr_maxsz + \
269 1 + 2 + 2 + 2 + \
270 owner_id_maxsz)
271#define NFS4_dec_lockt_sz (NFS4_dec_lock_sz)
272#define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
273 encode_putfh_maxsz + \
274 encode_getattr_maxsz + \
275 op_encode_hdr_maxsz + \
276 1 + 1 + 4 + 2 + 2)
277#define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
278 decode_putfh_maxsz + \
279 decode_getattr_maxsz + \
280 op_decode_hdr_maxsz + 4)
281#define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
282 encode_putfh_maxsz + \
283 op_encode_hdr_maxsz + 1)
284#define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
285 decode_putfh_maxsz + \
286 op_decode_hdr_maxsz + 2)
287#define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
288 encode_putfh_maxsz + \
289 encode_getattr_maxsz)
290#define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
291 decode_putfh_maxsz + \
292 decode_getattr_maxsz)
293#define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
294 encode_putfh_maxsz + \
295 encode_lookup_maxsz + \
296 encode_getattr_maxsz + \
297 encode_getfh_maxsz)
298#define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
299 decode_putfh_maxsz + \
300 op_decode_hdr_maxsz + \
301 decode_getattr_maxsz + \
302 decode_getfh_maxsz)
303#define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
304 encode_putrootfh_maxsz + \
305 encode_getattr_maxsz + \
306 encode_getfh_maxsz)
307#define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
308 decode_putrootfh_maxsz + \
309 decode_getattr_maxsz + \
310 decode_getfh_maxsz)
311#define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
312 encode_putfh_maxsz + \
16e42959
TM		 313 encode_remove_maxsz + \
314 encode_getattr_maxsz)
1da177e4
LT		 315#define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
316 decode_putfh_maxsz + \
16e42959
TM		 317 op_decode_hdr_maxsz + 5 + \
318 decode_getattr_maxsz)
1da177e4
LT		 319#define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
320 encode_putfh_maxsz + \
321 encode_savefh_maxsz + \
322 encode_putfh_maxsz + \
6caf2c82
TM		 323 encode_rename_maxsz + \
324 encode_getattr_maxsz + \
325 encode_restorefh_maxsz + \
326 encode_getattr_maxsz)
1da177e4
LT		 327#define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
328 decode_putfh_maxsz + \
329 decode_savefh_maxsz + \
330 decode_putfh_maxsz + \
6caf2c82
TM		 331 decode_rename_maxsz + \
332 decode_getattr_maxsz + \
333 decode_restorefh_maxsz + \
334 decode_getattr_maxsz)
1da177e4
LT		 335#define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
336 encode_putfh_maxsz + \
337 encode_savefh_maxsz + \
338 encode_putfh_maxsz + \
91ba2eee
TM		 339 encode_link_maxsz + \
340 decode_getattr_maxsz + \
341 encode_restorefh_maxsz + \
342 decode_getattr_maxsz)
1da177e4
LT		 343#define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
344 decode_putfh_maxsz + \
345 decode_savefh_maxsz + \
346 decode_putfh_maxsz + \
91ba2eee
TM		 347 decode_link_maxsz + \
348 decode_getattr_maxsz + \
349 decode_restorefh_maxsz + \
350 decode_getattr_maxsz)
1da177e4
LT		 351#define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
352 encode_putfh_maxsz + \
353 encode_symlink_maxsz + \
354 encode_getattr_maxsz + \
355 encode_getfh_maxsz)
356#define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
357 decode_putfh_maxsz + \
358 decode_symlink_maxsz + \
359 decode_getattr_maxsz + \
360 decode_getfh_maxsz)
361#define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
362 encode_putfh_maxsz + \
56ae19f3 363 encode_savefh_maxsz + \
1da177e4 364 encode_create_maxsz + \
56ae19f3 365 encode_getfh_maxsz + \
1da177e4 366 encode_getattr_maxsz + \
56ae19f3
TM		 367 encode_restorefh_maxsz + \
368 encode_getattr_maxsz)
1da177e4
LT		 369#define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
370 decode_putfh_maxsz + \
56ae19f3 371 decode_savefh_maxsz + \
1da177e4 372 decode_create_maxsz + \
56ae19f3 373 decode_getfh_maxsz + \
1da177e4 374 decode_getattr_maxsz + \
56ae19f3
TM		 375 decode_restorefh_maxsz + \
376 decode_getattr_maxsz)
1da177e4
LT		 377#define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
378 encode_putfh_maxsz + \
379 encode_getattr_maxsz)
380#define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
381 decode_putfh_maxsz + \
382 decode_getattr_maxsz)
383#define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
384 encode_putfh_maxsz + \
385 encode_getattr_maxsz)
386#define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
387 decode_putfh_maxsz + \
388 op_decode_hdr_maxsz + 12)
389#define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
390 encode_getattr_maxsz)
391#define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
392 decode_getattr_maxsz)
393#define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
394 encode_putfh_maxsz + \
395 encode_delegreturn_maxsz)
396#define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
397 decode_delegreturn_maxsz)
029d105e
BF		 398#define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
399 encode_putfh_maxsz + \
400 encode_getattr_maxsz)
401#define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
402 decode_putfh_maxsz + \
403 op_decode_hdr_maxsz + \
404 nfs4_fattr_bitmap_maxsz + 1)
23ec6965
BF		 405#define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
406 encode_putfh_maxsz + \
407 op_encode_hdr_maxsz + 4 + \
408 nfs4_fattr_bitmap_maxsz + 1)
409#define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
410 decode_putfh_maxsz + \
411 op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
1da177e4
LT		 412
413static struct {
414 unsigned int mode;
415 unsigned int nfs2type;
416} nfs_type2fmt[] = {
417 { 0, NFNON },
418 { S_IFREG, NFREG },
419 { S_IFDIR, NFDIR },
420 { S_IFBLK, NFBLK },
421 { S_IFCHR, NFCHR },
422 { S_IFLNK, NFLNK },
423 { S_IFSOCK, NFSOCK },
424 { S_IFIFO, NFFIFO },
425 { 0, NFNON },
426 { 0, NFNON },
427};
428
429struct compound_hdr {
430 int32_t status;
431 uint32_t nops;
432 uint32_t taglen;
433 char * tag;
434};
435
436/*
437 * START OF "GENERIC" ENCODE ROUTINES.
438 * These may look a little ugly since they are imported from a "generic"
439 * set of XDR encode/decode routines which are intended to be shared by
440 * all of our NFSv4 implementations (OpenBSD, MacOS X...).
441 *
442 * If the pain of reading these is too great, it should be a straightforward
443 * task to translate them into Linux-specific versions which are more
444 * consistent with the style used in NFSv2/v3...
445 */
446#define WRITE32(n) *p++ = htonl(n)
447#define WRITE64(n) do { \
448 *p++ = htonl((uint32_t)((n) >> 32)); \
449 *p++ = htonl((uint32_t)(n)); \
450} while (0)
451#define WRITEMEM(ptr,nbytes) do { \
452 p = xdr_encode_opaque_fixed(p, ptr, nbytes); \
453} while (0)
454
455#define RESERVE_SPACE(nbytes) do { \
456 p = xdr_reserve_space(xdr, nbytes); \
457 if (!p) printk("RESERVE_SPACE(%d) failed in function %s\n", (int) (nbytes), __FUNCTION__); \
458 BUG_ON(!p); \
459} while (0)
460
461static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
462{
463 uint32_t *p;
464
465 p = xdr_reserve_space(xdr, 4 + len);
466 BUG_ON(p == NULL);
467 xdr_encode_opaque(p, str, len);
468}
469
470static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
471{
472 uint32_t *p;
473
474 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag);
475 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN);
476 RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2));
477 WRITE32(hdr->taglen);
478 WRITEMEM(hdr->tag, hdr->taglen);
479 WRITE32(NFS4_MINOR_VERSION);
480 WRITE32(hdr->nops);
481 return 0;
482}
483
484static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
485{
486 uint32_t *p;
487
488 p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE);
489 BUG_ON(p == NULL);
490 xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE);
491}
492
493static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
494{
495 char owner_name[IDMAP_NAMESZ];
496 char owner_group[IDMAP_NAMESZ];
497 int owner_namelen = 0;
498 int owner_grouplen = 0;
499 uint32_t *p;
500 uint32_t *q;
501 int len;
502 uint32_t bmval0 = 0;
503 uint32_t bmval1 = 0;
504 int status;
505
506 /*
507 * We reserve enough space to write the entire attribute buffer at once.
508 * In the worst-case, this would be
509 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
510 * = 36 bytes, plus any contribution from variable-length fields
23ec6965 511 * such as owner/group.
1da177e4
LT		 512 */
513 len = 16;
514
515 /* Sigh */
516 if (iap->ia_valid & ATTR_SIZE)
517 len += 8;
518 if (iap->ia_valid & ATTR_MODE)
519 len += 4;
520 if (iap->ia_valid & ATTR_UID) {
521 owner_namelen = nfs_map_uid_to_name(server->nfs4_state, iap->ia_uid, owner_name);
522 if (owner_namelen < 0) {
523 printk(KERN_WARNING "nfs: couldn't resolve uid %d to string\n",
524 iap->ia_uid);
525 /* XXX */
526 strcpy(owner_name, "nobody");
527 owner_namelen = sizeof("nobody") - 1;
528 /* goto out; */
529 }
530 len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
531 }
532 if (iap->ia_valid & ATTR_GID) {
533 owner_grouplen = nfs_map_gid_to_group(server->nfs4_state, iap->ia_gid, owner_group);
534 if (owner_grouplen < 0) {
535 printk(KERN_WARNING "nfs4: couldn't resolve gid %d to string\n",
536 iap->ia_gid);
537 strcpy(owner_group, "nobody");
538 owner_grouplen = sizeof("nobody") - 1;
539 /* goto out; */
540 }
541 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
542 }
543 if (iap->ia_valid & ATTR_ATIME_SET)
544 len += 16;
545 else if (iap->ia_valid & ATTR_ATIME)
546 len += 4;
547 if (iap->ia_valid & ATTR_MTIME_SET)
548 len += 16;
549 else if (iap->ia_valid & ATTR_MTIME)
550 len += 4;
551 RESERVE_SPACE(len);
552
553 /*
554 * We write the bitmap length now, but leave the bitmap and the attribute
555 * buffer length to be backfilled at the end of this routine.
556 */
557 WRITE32(2);
558 q = p;
559 p += 3;
560
561 if (iap->ia_valid & ATTR_SIZE) {
562 bmval0 |= FATTR4_WORD0_SIZE;
563 WRITE64(iap->ia_size);
564 }
565 if (iap->ia_valid & ATTR_MODE) {
566 bmval1 |= FATTR4_WORD1_MODE;
567 WRITE32(iap->ia_mode);
568 }
569 if (iap->ia_valid & ATTR_UID) {
570 bmval1 |= FATTR4_WORD1_OWNER;
571 WRITE32(owner_namelen);
572 WRITEMEM(owner_name, owner_namelen);
573 }
574 if (iap->ia_valid & ATTR_GID) {
575 bmval1 |= FATTR4_WORD1_OWNER_GROUP;
576 WRITE32(owner_grouplen);
577 WRITEMEM(owner_group, owner_grouplen);
578 }
579 if (iap->ia_valid & ATTR_ATIME_SET) {
580 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
581 WRITE32(NFS4_SET_TO_CLIENT_TIME);
582 WRITE32(0);
583 WRITE32(iap->ia_mtime.tv_sec);
584 WRITE32(iap->ia_mtime.tv_nsec);
585 }
586 else if (iap->ia_valid & ATTR_ATIME) {
587 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
588 WRITE32(NFS4_SET_TO_SERVER_TIME);
589 }
590 if (iap->ia_valid & ATTR_MTIME_SET) {
591 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
592 WRITE32(NFS4_SET_TO_CLIENT_TIME);
593 WRITE32(0);
594 WRITE32(iap->ia_mtime.tv_sec);
595 WRITE32(iap->ia_mtime.tv_nsec);
596 }
597 else if (iap->ia_valid & ATTR_MTIME) {
598 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
599 WRITE32(NFS4_SET_TO_SERVER_TIME);
600 }
601
602 /*
603 * Now we backfill the bitmap and the attribute buffer length.
604 */
605 if (len != ((char *)p - (char *)q) + 4) {
606 printk ("encode_attr: Attr length calculation error! %u != %Zu\n",
607 len, ((char *)p - (char *)q) + 4);
608 BUG();
609 }
610 len = (char *)p - (char *)q - 12;
611 *q++ = htonl(bmval0);
612 *q++ = htonl(bmval1);
613 *q++ = htonl(len);
614
615 status = 0;
616/* out: */
617 return status;
618}
619
620static int encode_access(struct xdr_stream *xdr, u32 access)
621{
622 uint32_t *p;
623
624 RESERVE_SPACE(8);
625 WRITE32(OP_ACCESS);
626 WRITE32(access);
627
628 return 0;
629}
630
631static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg)
632{
633 uint32_t *p;
634
9512135d 635 RESERVE_SPACE(8+sizeof(arg->stateid->data));
1da177e4 636 WRITE32(OP_CLOSE);
cee54fc9 637 WRITE32(arg->seqid->sequence->counter);
9512135d 638 WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
1da177e4
LT		 639
640 return 0;
641}
642
643static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args)
644{
645 uint32_t *p;
646
647 RESERVE_SPACE(16);
648 WRITE32(OP_COMMIT);
649 WRITE64(args->offset);
650 WRITE32(args->count);
651
652 return 0;
653}
654
655static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create)
656{
657 uint32_t *p;
658
659 RESERVE_SPACE(8);
660 WRITE32(OP_CREATE);
661 WRITE32(create->ftype);
662
663 switch (create->ftype) {
664 case NF4LNK:
665 RESERVE_SPACE(4 + create->u.symlink->len);
666 WRITE32(create->u.symlink->len);
667 WRITEMEM(create->u.symlink->name, create->u.symlink->len);
668 break;
669
670 case NF4BLK: case NF4CHR:
671 RESERVE_SPACE(8);
672 WRITE32(create->u.device.specdata1);
673 WRITE32(create->u.device.specdata2);
674 break;
675
676 default:
677 break;
678 }
679
680 RESERVE_SPACE(4 + create->name->len);
681 WRITE32(create->name->len);
682 WRITEMEM(create->name->name, create->name->len);
683
684 return encode_attrs(xdr, create->attrs, create->server);
685}
686
687static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap)
688{
689 uint32_t *p;
690
691 RESERVE_SPACE(12);
692 WRITE32(OP_GETATTR);
693 WRITE32(1);
694 WRITE32(bitmap);
695 return 0;
696}
697
698static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1)
699{
700 uint32_t *p;
701
702 RESERVE_SPACE(16);
703 WRITE32(OP_GETATTR);
704 WRITE32(2);
705 WRITE32(bm0);
706 WRITE32(bm1);
707 return 0;
708}
709
710static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask)
711{
1da177e4
LT		 712 return encode_getattr_two(xdr,
713 bitmask[0] & nfs4_fattr_bitmap[0],
714 bitmask[1] & nfs4_fattr_bitmap[1]);
715}
716
717static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask)
718{
1da177e4
LT		 719 return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0],
720 bitmask[1] & nfs4_fsinfo_bitmap[1]);
721}
722
723static int encode_getfh(struct xdr_stream *xdr)
724{
725 uint32_t *p;
726
727 RESERVE_SPACE(4);
728 WRITE32(OP_GETFH);
729
730 return 0;
731}
732
733static int encode_link(struct xdr_stream *xdr, const struct qstr *name)
734{
735 uint32_t *p;
736
737 RESERVE_SPACE(8 + name->len);
738 WRITE32(OP_LINK);
739 WRITE32(name->len);
740 WRITEMEM(name->name, name->len);
741
742 return 0;
743}
744
745/*
746 * opcode,type,reclaim,offset,length,new_lock_owner = 32
747 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
748 */
749static int encode_lock(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
750{
751 uint32_t *p;
752 struct nfs_lock_opargs *opargs = arg->u.lock;
753
754 RESERVE_SPACE(32);
755 WRITE32(OP_LOCK);
756 WRITE32(arg->type);
757 WRITE32(opargs->reclaim);
758 WRITE64(arg->offset);
759 WRITE64(arg->length);
760 WRITE32(opargs->new_lock_owner);
761 if (opargs->new_lock_owner){
1da177e4 762 RESERVE_SPACE(40);
06735b34
TM		 763 WRITE32(opargs->open_seqid->sequence->counter);
764 WRITEMEM(opargs->open_stateid->data, sizeof(opargs->open_stateid->data));
765 WRITE32(opargs->lock_seqid->sequence->counter);
766 WRITE64(opargs->lock_owner.clientid);
1da177e4 767 WRITE32(4);
06735b34 768 WRITE32(opargs->lock_owner.id);
1da177e4
LT		 769 }
770 else {
1da177e4 771 RESERVE_SPACE(20);
06735b34
TM		 772 WRITEMEM(opargs->lock_stateid->data, sizeof(opargs->lock_stateid->data));
773 WRITE32(opargs->lock_seqid->sequence->counter);
1da177e4
LT		 774 }
775
776 return 0;
777}
778
779static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
780{
781 uint32_t *p;
782 struct nfs_lowner *opargs = arg->u.lockt;
783
784 RESERVE_SPACE(40);
785 WRITE32(OP_LOCKT);
786 WRITE32(arg->type);
787 WRITE64(arg->offset);
788 WRITE64(arg->length);
789 WRITE64(opargs->clientid);
790 WRITE32(4);
791 WRITE32(opargs->id);
792
793 return 0;
794}
795
796static int encode_locku(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
797{
798 uint32_t *p;
799 struct nfs_locku_opargs *opargs = arg->u.locku;
800
801 RESERVE_SPACE(44);
802 WRITE32(OP_LOCKU);
803 WRITE32(arg->type);
cee54fc9 804 WRITE32(opargs->seqid->sequence->counter);
faf5f49c 805 WRITEMEM(opargs->stateid->data, sizeof(opargs->stateid->data));
1da177e4
LT		 806 WRITE64(arg->offset);
807 WRITE64(arg->length);
808
809 return 0;
810}
811
812static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name)
813{
814 int len = name->len;
815 uint32_t *p;
816
817 RESERVE_SPACE(8 + len);
818 WRITE32(OP_LOOKUP);
819 WRITE32(len);
820 WRITEMEM(name->name, len);
821
822 return 0;
823}
824
825static void encode_share_access(struct xdr_stream *xdr, int open_flags)
826{
827 uint32_t *p;
828
829 RESERVE_SPACE(8);
830 switch (open_flags & (FMODE_READ|FMODE_WRITE)) {
831 case FMODE_READ:
832 WRITE32(NFS4_SHARE_ACCESS_READ);
833 break;
834 case FMODE_WRITE:
835 WRITE32(NFS4_SHARE_ACCESS_WRITE);
836 break;
837 case FMODE_READ|FMODE_WRITE:
838 WRITE32(NFS4_SHARE_ACCESS_BOTH);
839 break;
840 default:
841 BUG();
842 }
843 WRITE32(0); /* for linux, share_deny = 0 always */
844}
845
846static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
847{
848 uint32_t *p;
849 /*
850 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
851 * owner 4 = 32
852 */
853 RESERVE_SPACE(8);
854 WRITE32(OP_OPEN);
cee54fc9 855 WRITE32(arg->seqid->sequence->counter);
1da177e4
LT		 856 encode_share_access(xdr, arg->open_flags);
857 RESERVE_SPACE(16);
858 WRITE64(arg->clientid);
859 WRITE32(4);
860 WRITE32(arg->id);
861}
862
863static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
864{
865 uint32_t *p;
866
867 RESERVE_SPACE(4);
868 switch(arg->open_flags & O_EXCL) {
869 case 0:
870 WRITE32(NFS4_CREATE_UNCHECKED);
871 encode_attrs(xdr, arg->u.attrs, arg->server);
872 break;
873 default:
874 WRITE32(NFS4_CREATE_EXCLUSIVE);
875 encode_nfs4_verifier(xdr, &arg->u.verifier);
876 }
877}
878
879static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
880{
881 uint32_t *p;
882
883 RESERVE_SPACE(4);
884 switch (arg->open_flags & O_CREAT) {
885 case 0:
886 WRITE32(NFS4_OPEN_NOCREATE);
887 break;
888 default:
889 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
890 WRITE32(NFS4_OPEN_CREATE);
891 encode_createmode(xdr, arg);
892 }
893}
894
895static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type)
896{
897 uint32_t *p;
898
899 RESERVE_SPACE(4);
900 switch (delegation_type) {
901 case 0:
902 WRITE32(NFS4_OPEN_DELEGATE_NONE);
903 break;
904 case FMODE_READ:
905 WRITE32(NFS4_OPEN_DELEGATE_READ);
906 break;
907 case FMODE_WRITE|FMODE_READ:
908 WRITE32(NFS4_OPEN_DELEGATE_WRITE);
909 break;
910 default:
911 BUG();
912 }
913}
914
915static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
916{
917 uint32_t *p;
918
919 RESERVE_SPACE(4);
920 WRITE32(NFS4_OPEN_CLAIM_NULL);
921 encode_string(xdr, name->len, name->name);
922}
923
924static inline void encode_claim_previous(struct xdr_stream *xdr, int type)
925{
926 uint32_t *p;
927
928 RESERVE_SPACE(4);
929 WRITE32(NFS4_OPEN_CLAIM_PREVIOUS);
930 encode_delegation_type(xdr, type);
931}
932
933static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
934{
935 uint32_t *p;
936
937 RESERVE_SPACE(4+sizeof(stateid->data));
938 WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
939 WRITEMEM(stateid->data, sizeof(stateid->data));
940 encode_string(xdr, name->len, name->name);
941}
942
943static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg)
944{
945 encode_openhdr(xdr, arg);
946 encode_opentype(xdr, arg);
947 switch (arg->claim) {
948 case NFS4_OPEN_CLAIM_NULL:
949 encode_claim_null(xdr, arg->name);
950 break;
951 case NFS4_OPEN_CLAIM_PREVIOUS:
952 encode_claim_previous(xdr, arg->u.delegation_type);
953 break;
954 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
955 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
956 break;
957 default:
958 BUG();
959 }
960 return 0;
961}
962
963static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg)
964{
965 uint32_t *p;
966
967 RESERVE_SPACE(8+sizeof(arg->stateid.data));
968 WRITE32(OP_OPEN_CONFIRM);
969 WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
cee54fc9 970 WRITE32(arg->seqid->sequence->counter);
1da177e4
LT		 971
972 return 0;
973}
974
975static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg)
976{
977 uint32_t *p;
978
9512135d 979 RESERVE_SPACE(8+sizeof(arg->stateid->data));
1da177e4 980 WRITE32(OP_OPEN_DOWNGRADE);
9512135d 981 WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
cee54fc9 982 WRITE32(arg->seqid->sequence->counter);
1da177e4
LT		 983 encode_share_access(xdr, arg->open_flags);
984 return 0;
985}
986
987static int
988encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh)
989{
990 int len = fh->size;
991 uint32_t *p;
992
993 RESERVE_SPACE(8 + len);
994 WRITE32(OP_PUTFH);
995 WRITE32(len);
996 WRITEMEM(fh->data, len);
997
998 return 0;
999}
1000
1001static int encode_putrootfh(struct xdr_stream *xdr)
1002{
1003 uint32_t *p;
1004
1005 RESERVE_SPACE(4);
1006 WRITE32(OP_PUTROOTFH);
1007
1008 return 0;
1009}
1010
1011static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx)
1012{
1da177e4
LT		 1013 nfs4_stateid stateid;
1014 uint32_t *p;
1015
1016 RESERVE_SPACE(16);
1017 if (ctx->state != NULL) {
1018 nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner);
1019 WRITEMEM(stateid.data, sizeof(stateid.data));
1020 } else
1021 WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data));
1022}
1023
1024static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args)
1025{
1026 uint32_t *p;
1027
1028 RESERVE_SPACE(4);
1029 WRITE32(OP_READ);
1030
1031 encode_stateid(xdr, args->context);
1032
1033 RESERVE_SPACE(12);
1034 WRITE64(args->offset);
1035 WRITE32(args->count);
1036
1037 return 0;
1038}
1039
1040static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req)
1041{
1042 struct rpc_auth *auth = req->rq_task->tk_auth;
97d312d0
MN		 1043 uint32_t attrs[2] = {
1044 FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID,
1045 FATTR4_WORD1_MOUNTED_ON_FILEID,
1046 };
1da177e4
LT		 1047 int replen;
1048 uint32_t *p;
1049
1050 RESERVE_SPACE(32+sizeof(nfs4_verifier));
1051 WRITE32(OP_READDIR);
1052 WRITE64(readdir->cookie);
1053 WRITEMEM(readdir->verifier.data, sizeof(readdir->verifier.data));
1054 WRITE32(readdir->count >> 1); /* We're not doing readdirplus */
1055 WRITE32(readdir->count);
1056 WRITE32(2);
97d312d0
MN		 1057 /* Switch to mounted_on_fileid if the server supports it */
1058 if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)
1059 attrs[0] &= ~FATTR4_WORD0_FILEID;
1060 else
1061 attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
1062 WRITE32(attrs[0] & readdir->bitmask[0]);
1063 WRITE32(attrs[1] & readdir->bitmask[1]);
eadf4598
TM		 1064 dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n",
1065 __FUNCTION__,
1066 (unsigned long long)readdir->cookie,
1067 ((u32 *)readdir->verifier.data)[0],
1068 ((u32 *)readdir->verifier.data)[1],
1069 attrs[0] & readdir->bitmask[0],
1070 attrs[1] & readdir->bitmask[1]);
1da177e4
LT		 1071
1072 /* set up reply kvec
1073 * toplevel_status + taglen + rescount + OP_PUTFH + status
1074 * + OP_READDIR + status + verifer(2) = 9
1075 */
1076 replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2;
1077 xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages,
1078 readdir->pgbase, readdir->count);
eadf4598
TM		 1079 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
1080 __FUNCTION__, replen, readdir->pages,
1081 readdir->pgbase, readdir->count);
1da177e4
LT		 1082
1083 return 0;
1084}
1085
1086static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req)
1087{
1088 struct rpc_auth *auth = req->rq_task->tk_auth;
1089 unsigned int replen;
1090 uint32_t *p;
1091
1092 RESERVE_SPACE(4);
1093 WRITE32(OP_READLINK);
1094
1095 /* set up reply kvec
1096 * toplevel_status + taglen + rescount + OP_PUTFH + status
1097 * + OP_READLINK + status + string length = 8
1098 */
1099 replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2;
1100 xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages,
1101 readlink->pgbase, readlink->pglen);
1102
1103 return 0;
1104}
1105
1106static int encode_remove(struct xdr_stream *xdr, const struct qstr *name)
1107{
1108 uint32_t *p;
1109
1110 RESERVE_SPACE(8 + name->len);
1111 WRITE32(OP_REMOVE);
1112 WRITE32(name->len);
1113 WRITEMEM(name->name, name->len);
1114
1115 return 0;
1116}
1117
1118static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname)
1119{
1120 uint32_t *p;
1121
1122 RESERVE_SPACE(8 + oldname->len);
1123 WRITE32(OP_RENAME);
1124 WRITE32(oldname->len);
1125 WRITEMEM(oldname->name, oldname->len);
1126
1127 RESERVE_SPACE(4 + newname->len);
1128 WRITE32(newname->len);
1129 WRITEMEM(newname->name, newname->len);
1130
1131 return 0;
1132}
1133
1134static int encode_renew(struct xdr_stream *xdr, const struct nfs4_client *client_stateid)
1135{
1136 uint32_t *p;
1137
1138 RESERVE_SPACE(12);
1139 WRITE32(OP_RENEW);
1140 WRITE64(client_stateid->cl_clientid);
1141
1142 return 0;
1143}
1144
56ae19f3
TM		 1145static int
1146encode_restorefh(struct xdr_stream *xdr)
1147{
1148 uint32_t *p;
1149
1150 RESERVE_SPACE(4);
1151 WRITE32(OP_RESTOREFH);
1152
1153 return 0;
1154}
1155
23ec6965
BF		 1156static int
1157encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg)
1158{
1159 uint32_t *p;
1160
1161 RESERVE_SPACE(4+sizeof(zero_stateid.data));
1162 WRITE32(OP_SETATTR);
1163 WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data));
1164 RESERVE_SPACE(2*4);
1165 WRITE32(1);
1166 WRITE32(FATTR4_WORD0_ACL);
1167 if (arg->acl_len % 4)
1168 return -EINVAL;
1169 RESERVE_SPACE(4);
1170 WRITE32(arg->acl_len);
1171 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
1172 return 0;
1173}
1174
1da177e4
LT		 1175static int
1176encode_savefh(struct xdr_stream *xdr)
1177{
1178 uint32_t *p;
1179
1180 RESERVE_SPACE(4);
1181 WRITE32(OP_SAVEFH);
1182
1183 return 0;
1184}
1185
1186static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server)
1187{
1188 int status;
1189 uint32_t *p;
1190
1191 RESERVE_SPACE(4+sizeof(arg->stateid.data));
1192 WRITE32(OP_SETATTR);
1193 WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
1194
1195 if ((status = encode_attrs(xdr, arg->iap, server)))
1196 return status;
1197
1198 return 0;
1199}
1200
1201static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid)
1202{
1203 uint32_t *p;
1204
1205 RESERVE_SPACE(4 + sizeof(setclientid->sc_verifier->data));
1206 WRITE32(OP_SETCLIENTID);
1207 WRITEMEM(setclientid->sc_verifier->data, sizeof(setclientid->sc_verifier->data));
1208
1209 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
1210 RESERVE_SPACE(4);
1211 WRITE32(setclientid->sc_prog);
1212 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1213 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
1214 RESERVE_SPACE(4);
1215 WRITE32(setclientid->sc_cb_ident);
1216
1217 return 0;
1218}
1219
1220static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_client *client_state)
1221{
1222 uint32_t *p;
1223
1224 RESERVE_SPACE(12 + sizeof(client_state->cl_confirm.data));
1225 WRITE32(OP_SETCLIENTID_CONFIRM);
1226 WRITE64(client_state->cl_clientid);
1227 WRITEMEM(client_state->cl_confirm.data, sizeof(client_state->cl_confirm.data));
1228
1229 return 0;
1230}
1231
1232static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args)
1233{
1234 uint32_t *p;
1235
1236 RESERVE_SPACE(4);
1237 WRITE32(OP_WRITE);
1238
1239 encode_stateid(xdr, args->context);
1240
1241 RESERVE_SPACE(16);
1242 WRITE64(args->offset);
1243 WRITE32(args->stable);
1244 WRITE32(args->count);
1245
1246 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
1247
1248 return 0;
1249}
1250
1251static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid)
1252{
1253 uint32_t *p;
1254
1255 RESERVE_SPACE(20);
1256
1257 WRITE32(OP_DELEGRETURN);
1258 WRITEMEM(stateid->data, sizeof(stateid->data));
1259 return 0;
1260
1261}
1262/*
1263 * END OF "GENERIC" ENCODE ROUTINES.
1264 */
1265
1266/*
1267 * Encode an ACCESS request
1268 */
1269static int nfs4_xdr_enc_access(struct rpc_rqst *req, uint32_t *p, const struct nfs4_accessargs *args)
1270{
1271 struct xdr_stream xdr;
1272 struct compound_hdr hdr = {
1273 .nops = 2,
1274 };
1275 int status;
1276
1277 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1278 encode_compound_hdr(&xdr, &hdr);
1279 if ((status = encode_putfh(&xdr, args->fh)) == 0)
1280 status = encode_access(&xdr, args->access);
1281 return status;
1282}
1283
1284/*
1285 * Encode LOOKUP request
1286 */
1287static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_arg *args)
1288{
1289 struct xdr_stream xdr;
1290 struct compound_hdr hdr = {
1291 .nops = 4,
1292 };
1293 int status;
1294
1295 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1296 encode_compound_hdr(&xdr, &hdr);
1297 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1298 goto out;
1299 if ((status = encode_lookup(&xdr, args->name)) != 0)
1300 goto out;
1301 if ((status = encode_getfh(&xdr)) != 0)
1302 goto out;
1303 status = encode_getfattr(&xdr, args->bitmask);
1304out:
1305 return status;
1306}
1307
1308/*
1309 * Encode LOOKUP_ROOT request
1310 */
1311static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_root_arg *args)
1312{
1313 struct xdr_stream xdr;
1314 struct compound_hdr hdr = {
1315 .nops = 3,
1316 };
1317 int status;
1318
1319 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1320 encode_compound_hdr(&xdr, &hdr);
1321 if ((status = encode_putrootfh(&xdr)) != 0)
1322 goto out;
1323 if ((status = encode_getfh(&xdr)) == 0)
1324 status = encode_getfattr(&xdr, args->bitmask);
1325out:
1326 return status;
1327}
1328
1329/*
1330 * Encode REMOVE request
1331 */
1332static int nfs4_xdr_enc_remove(struct rpc_rqst *req, uint32_t *p, const struct nfs4_remove_arg *args)
1333{
1334 struct xdr_stream xdr;
1335 struct compound_hdr hdr = {
16e42959 1336 .nops = 3,
1da177e4
LT		 1337 };
1338 int status;
1339
1340 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1341 encode_compound_hdr(&xdr, &hdr);
16e42959
TM		 1342 if ((status = encode_putfh(&xdr, args->fh)) != 0)
1343 goto out;
1344 if ((status = encode_remove(&xdr, args->name)) != 0)
1345 goto out;
1346 status = encode_getfattr(&xdr, args->bitmask);
1347out:
1da177e4
LT		 1348 return status;
1349}
1350
1351/*
1352 * Encode RENAME request
1353 */
1354static int nfs4_xdr_enc_rename(struct rpc_rqst *req, uint32_t *p, const struct nfs4_rename_arg *args)
1355{
1356 struct xdr_stream xdr;
1357 struct compound_hdr hdr = {
6caf2c82 1358 .nops = 7,
1da177e4
LT		 1359 };
1360 int status;
1361
1362 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1363 encode_compound_hdr(&xdr, &hdr);
1364 if ((status = encode_putfh(&xdr, args->old_dir)) != 0)
1365 goto out;
1366 if ((status = encode_savefh(&xdr)) != 0)
1367 goto out;
1368 if ((status = encode_putfh(&xdr, args->new_dir)) != 0)
1369 goto out;
6caf2c82
TM		 1370 if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0)
1371 goto out;
1372 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
1373 goto out;
1374 if ((status = encode_restorefh(&xdr)) != 0)
1375 goto out;
1376 status = encode_getfattr(&xdr, args->bitmask);
1da177e4
LT		 1377out:
1378 return status;
1379}
1380
1381/*
1382 * Encode LINK request
1383 */
1384static int nfs4_xdr_enc_link(struct rpc_rqst *req, uint32_t *p, const struct nfs4_link_arg *args)
1385{
1386 struct xdr_stream xdr;
1387 struct compound_hdr hdr = {
91ba2eee 1388 .nops = 7,
1da177e4
LT		 1389 };
1390 int status;
1391
1392 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1393 encode_compound_hdr(&xdr, &hdr);
1394 if ((status = encode_putfh(&xdr, args->fh)) != 0)
1395 goto out;
1396 if ((status = encode_savefh(&xdr)) != 0)
1397 goto out;
1398 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1399 goto out;
91ba2eee
TM		 1400 if ((status = encode_link(&xdr, args->name)) != 0)
1401 goto out;
1402 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
1403 goto out;
1404 if ((status = encode_restorefh(&xdr)) != 0)
1405 goto out;
1406 status = encode_getfattr(&xdr, args->bitmask);
1da177e4
LT		 1407out:
1408 return status;
1409}
1410
1411/*
1412 * Encode CREATE request
1413 */
1414static int nfs4_xdr_enc_create(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args)
1415{
1416 struct xdr_stream xdr;
1417 struct compound_hdr hdr = {
56ae19f3 1418 .nops = 7,
1da177e4
LT		 1419 };
1420 int status;
1421
1422 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1423 encode_compound_hdr(&xdr, &hdr);
1424 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1425 goto out;
56ae19f3
TM		 1426 if ((status = encode_savefh(&xdr)) != 0)
1427 goto out;
1da177e4
LT		 1428 if ((status = encode_create(&xdr, args)) != 0)
1429 goto out;
1430 if ((status = encode_getfh(&xdr)) != 0)
1431 goto out;
56ae19f3
TM		 1432 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
1433 goto out;
1434 if ((status = encode_restorefh(&xdr)) != 0)
1435 goto out;
1da177e4
LT		 1436 status = encode_getfattr(&xdr, args->bitmask);
1437out:
1438 return status;
1439}
1440
1441/*
1442 * Encode SYMLINK request
1443 */
1444static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args)
1445{
1446 return nfs4_xdr_enc_create(req, p, args);
1447}
1448
1449/*
1450 * Encode GETATTR request
1451 */
1452static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, uint32_t *p, const struct nfs4_getattr_arg *args)
1453{
1454 struct xdr_stream xdr;
1455 struct compound_hdr hdr = {
1456 .nops = 2,
1457 };
1458 int status;
1459
1460 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1461 encode_compound_hdr(&xdr, &hdr);
1462 if ((status = encode_putfh(&xdr, args->fh)) == 0)
1463 status = encode_getfattr(&xdr, args->bitmask);
1464 return status;
1465}
1466
1467/*
1468 * Encode a CLOSE request
1469 */
1470static int nfs4_xdr_enc_close(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args)
1471{
1472 struct xdr_stream xdr;
1473 struct compound_hdr hdr = {
516a6af6 1474 .nops = 3,
1da177e4
LT		 1475 };
1476 int status;
1477
1478 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1479 encode_compound_hdr(&xdr, &hdr);
1480 status = encode_putfh(&xdr, args->fh);
1481 if(status)
1482 goto out;
1483 status = encode_close(&xdr, args);
516a6af6
TM		 1484 if (status != 0)
1485 goto out;
1486 status = encode_getfattr(&xdr, args->bitmask);
1da177e4
LT		 1487out:
1488 return status;
1489}
1490
1491/*
1492 * Encode an OPEN request
1493 */
1494static int nfs4_xdr_enc_open(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args)
1495{
1496 struct xdr_stream xdr;
1497 struct compound_hdr hdr = {
56ae19f3 1498 .nops = 7,
1da177e4
LT		 1499 };
1500 int status;
1501
1502 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1503 encode_compound_hdr(&xdr, &hdr);
1504 status = encode_putfh(&xdr, args->fh);
56ae19f3
TM		 1505 if (status)
1506 goto out;
1507 status = encode_savefh(&xdr);
1da177e4
LT		 1508 if (status)
1509 goto out;
1510 status = encode_open(&xdr, args);
1511 if (status)
1512 goto out;
1513 status = encode_getfh(&xdr);
1514 if (status)
1515 goto out;
1516 status = encode_getfattr(&xdr, args->bitmask);
56ae19f3
TM		 1517 if (status)
1518 goto out;
1519 status = encode_restorefh(&xdr);
1520 if (status)
1521 goto out;
1522 status = encode_getfattr(&xdr, args->bitmask);
1da177e4
LT		 1523out:
1524 return status;
1525}
1526
1527/*
1528 * Encode an OPEN_CONFIRM request
1529 */
1530static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_open_confirmargs *args)
1531{
1532 struct xdr_stream xdr;
1533 struct compound_hdr hdr = {
1534 .nops = 2,
1535 };
1536 int status;
1537
cee54fc9
TM		 1538 status = nfs_wait_on_sequence(args->seqid, req->rq_task);
1539 if (status != 0)
1540 goto out;
1da177e4
LT		 1541 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1542 encode_compound_hdr(&xdr, &hdr);
1543 status = encode_putfh(&xdr, args->fh);
1544 if(status)
1545 goto out;
1546 status = encode_open_confirm(&xdr, args);
1547out:
1548 return status;
1549}
1550
1551/*
1552 * Encode an OPEN request with no attributes.
1553 */
1554static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args)
1555{
1556 struct xdr_stream xdr;
1557 struct compound_hdr hdr = {
1558 .nops = 2,
1559 };
1560 int status;
1561
cee54fc9
TM		 1562 status = nfs_wait_on_sequence(args->seqid, req->rq_task);
1563 if (status != 0)
1564 goto out;
1da177e4
LT		 1565 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1566 encode_compound_hdr(&xdr, &hdr);
1567 status = encode_putfh(&xdr, args->fh);
1568 if (status)
1569 goto out;
1570 status = encode_open(&xdr, args);
1571out:
1572 return status;
1573}
1574
1575/*
1576 * Encode an OPEN_DOWNGRADE request
1577 */
1578static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args)
1579{
1580 struct xdr_stream xdr;
1581 struct compound_hdr hdr = {
516a6af6 1582 .nops = 3,
1da177e4
LT		 1583 };
1584 int status;
1585
1586 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1587 encode_compound_hdr(&xdr, &hdr);
1588 status = encode_putfh(&xdr, args->fh);
1589 if (status)
1590 goto out;
1591 status = encode_open_downgrade(&xdr, args);
516a6af6
TM		 1592 if (status != 0)
1593 goto out;
1594 status = encode_getfattr(&xdr, args->bitmask);
1da177e4
LT		 1595out:
1596 return status;
1597}
1598
1599/*
1600 * Encode a LOCK request
1601 */
1602static int nfs4_xdr_enc_lock(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args)
1603{
1604 struct xdr_stream xdr;
1605 struct compound_hdr hdr = {
1606 .nops = 2,
1607 };
cee54fc9 1608 struct nfs_lock_opargs *opargs = args->u.lock;
1da177e4
LT		 1609 int status;
1610
06735b34 1611 status = nfs_wait_on_sequence(opargs->lock_seqid, req->rq_task);
cee54fc9
TM		 1612 if (status != 0)
1613 goto out;
06735b34
TM		 1614 /* Do we need to do an open_to_lock_owner? */
1615 if (opargs->lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED)
1616 opargs->new_lock_owner = 0;
1da177e4
LT		 1617 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1618 encode_compound_hdr(&xdr, &hdr);
1619 status = encode_putfh(&xdr, args->fh);
1620 if(status)
1621 goto out;
1622 status = encode_lock(&xdr, args);
1623out:
1624 return status;
1625}
1626
1627/*
1628 * Encode a LOCKT request
1629 */
1630static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args)
1631{
1632 struct xdr_stream xdr;
1633 struct compound_hdr hdr = {
1634 .nops = 2,
1635 };
1636 int status;
1637
1638 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1639 encode_compound_hdr(&xdr, &hdr);
1640 status = encode_putfh(&xdr, args->fh);
1641 if(status)
1642 goto out;
1643 status = encode_lockt(&xdr, args);
1644out:
1645 return status;
1646}
1647
1648/*
1649 * Encode a LOCKU request
1650 */
1651static int nfs4_xdr_enc_locku(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args)
1652{
1653 struct xdr_stream xdr;
1654 struct compound_hdr hdr = {
1655 .nops = 2,
1656 };
1657 int status;
1658
1659 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1660 encode_compound_hdr(&xdr, &hdr);
1661 status = encode_putfh(&xdr, args->fh);
1662 if(status)
1663 goto out;
1664 status = encode_locku(&xdr, args);
1665out:
1666 return status;
1667}
1668
1669/*
1670 * Encode a READLINK request
1671 */
1672static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readlink *args)
1673{
1674 struct xdr_stream xdr;
1675 struct compound_hdr hdr = {
1676 .nops = 2,
1677 };
1678 int status;
1679
1680 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1681 encode_compound_hdr(&xdr, &hdr);
1682 status = encode_putfh(&xdr, args->fh);
1683 if(status)
1684 goto out;
1685 status = encode_readlink(&xdr, args, req);
1686out:
1687 return status;
1688}
1689
1690/*
1691 * Encode a READDIR request
1692 */
1693static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readdir_arg *args)
1694{
1695 struct xdr_stream xdr;
1696 struct compound_hdr hdr = {
1697 .nops = 2,
1698 };
1699 int status;
1700
1701 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1702 encode_compound_hdr(&xdr, &hdr);
1703 status = encode_putfh(&xdr, args->fh);
1704 if(status)
1705 goto out;
1706 status = encode_readdir(&xdr, args, req);
1707out:
1708 return status;
1709}
1710
1711/*
1712 * Encode a READ request
1713 */
1714static int nfs4_xdr_enc_read(struct rpc_rqst *req, uint32_t *p, struct nfs_readargs *args)
1715{
1716 struct rpc_auth *auth = req->rq_task->tk_auth;
1717 struct xdr_stream xdr;
1718 struct compound_hdr hdr = {
1719 .nops = 2,
1720 };
1721 int replen, status;
1722
1723 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1724 encode_compound_hdr(&xdr, &hdr);
1725 status = encode_putfh(&xdr, args->fh);
1726 if (status)
1727 goto out;
1728 status = encode_read(&xdr, args);
1729 if (status)
1730 goto out;
1731
1732 /* set up reply kvec
1733 * toplevel status + taglen=0 + rescount + OP_PUTFH + status
1734 * + OP_READ + status + eof + datalen = 9
1735 */
1736 replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2;
1737 xdr_inline_pages(&req->rq_rcv_buf, replen,
1738 args->pages, args->pgbase, args->count);
1739out:
1740 return status;
1741}
1742
1743/*
1744 * Encode an SETATTR request
1745 */
1746static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, uint32_t *p, struct nfs_setattrargs *args)
1747
1748{
1749 struct xdr_stream xdr;
1750 struct compound_hdr hdr = {
1751 .nops = 3,
1752 };
1753 int status;
1754
1755 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1756 encode_compound_hdr(&xdr, &hdr);
1757 status = encode_putfh(&xdr, args->fh);
1758 if(status)
1759 goto out;
1760 status = encode_setattr(&xdr, args, args->server);
1761 if(status)
1762 goto out;
1763 status = encode_getfattr(&xdr, args->bitmask);
1764out:
1765 return status;
1766}
1767
029d105e
BF		 1768/*
1769 * Encode a GETACL request
1770 */
1771static int
1772nfs4_xdr_enc_getacl(struct rpc_rqst *req, uint32_t *p,
1773 struct nfs_getaclargs *args)
1774{
1775 struct xdr_stream xdr;
1776 struct rpc_auth *auth = req->rq_task->tk_auth;
1777 struct compound_hdr hdr = {
1778 .nops = 2,
1779 };
1780 int replen, status;
1781
1782 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1783 encode_compound_hdr(&xdr, &hdr);
1784 status = encode_putfh(&xdr, args->fh);
1785 if (status)
1786 goto out;
1787 status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0);
1788 /* set up reply buffer: */
1789 replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2;
1790 xdr_inline_pages(&req->rq_rcv_buf, replen,
1791 args->acl_pages, args->acl_pgbase, args->acl_len);
1792out:
1793 return status;
1794}
1795
1da177e4
LT		 1796/*
1797 * Encode a WRITE request
1798 */
1799static int nfs4_xdr_enc_write(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args)
1800{
1801 struct xdr_stream xdr;
1802 struct compound_hdr hdr = {
4f9838c7 1803 .nops = 3,
1da177e4
LT		 1804 };
1805 int status;
1806
1807 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1808 encode_compound_hdr(&xdr, &hdr);
1809 status = encode_putfh(&xdr, args->fh);
1810 if (status)
1811 goto out;
1812 status = encode_write(&xdr, args);
4f9838c7
TM		 1813 if (status)
1814 goto out;
1815 status = encode_getfattr(&xdr, args->bitmask);
1da177e4
LT		 1816out:
1817 return status;
1818}
1819
1820/*
1821 * a COMMIT request
1822 */
1823static int nfs4_xdr_enc_commit(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args)
1824{
1825 struct xdr_stream xdr;
1826 struct compound_hdr hdr = {
4f9838c7 1827 .nops = 3,
1da177e4
LT		 1828 };
1829 int status;
1830
1831 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1832 encode_compound_hdr(&xdr, &hdr);
1833 status = encode_putfh(&xdr, args->fh);
1834 if (status)
1835 goto out;
1836 status = encode_commit(&xdr, args);
4f9838c7
TM		 1837 if (status)
1838 goto out;
1839 status = encode_getfattr(&xdr, args->bitmask);
1da177e4
LT		 1840out:
1841 return status;
1842}
1843
1844/*
1845 * FSINFO request
1846 */
1847static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs4_fsinfo_arg *args)
1848{
1849 struct xdr_stream xdr;
1850 struct compound_hdr hdr = {
1851 .nops = 2,
1852 };
1853 int status;
1854
1855 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1856 encode_compound_hdr(&xdr, &hdr);
1857 status = encode_putfh(&xdr, args->fh);
1858 if (!status)
1859 status = encode_fsinfo(&xdr, args->bitmask);
1860 return status;
1861}
1862
1863/*
1864 * a PATHCONF request
1865 */
1866static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, uint32_t *p, const struct nfs4_pathconf_arg *args)
1867{
1da177e4
LT		 1868 struct xdr_stream xdr;
1869 struct compound_hdr hdr = {
1870 .nops = 2,
1871 };
1872 int status;
1873
1874 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1875 encode_compound_hdr(&xdr, &hdr);
1876 status = encode_putfh(&xdr, args->fh);
1877 if (!status)
1878 status = encode_getattr_one(&xdr,
1879 args->bitmask[0] & nfs4_pathconf_bitmap[0]);
1880 return status;
1881}
1882
1883/*
1884 * a STATFS request
1885 */
1886static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, uint32_t *p, const struct nfs4_statfs_arg *args)
1887{
1da177e4
LT		 1888 struct xdr_stream xdr;
1889 struct compound_hdr hdr = {
1890 .nops = 2,
1891 };
1892 int status;
1893
1894 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1895 encode_compound_hdr(&xdr, &hdr);
1896 status = encode_putfh(&xdr, args->fh);
1897 if (status == 0)
1898 status = encode_getattr_two(&xdr,
1899 args->bitmask[0] & nfs4_statfs_bitmap[0],
1900 args->bitmask[1] & nfs4_statfs_bitmap[1]);
1901 return status;
1902}
1903
1904/*
1905 * GETATTR_BITMAP request
1906 */
1907static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, uint32_t *p, const struct nfs_fh *fhandle)
1908{
1909 struct xdr_stream xdr;
1910 struct compound_hdr hdr = {
1911 .nops = 2,
1912 };
1913 int status;
1914
1915 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1916 encode_compound_hdr(&xdr, &hdr);
1917 status = encode_putfh(&xdr, fhandle);
1918 if (status == 0)
1919 status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
1920 FATTR4_WORD0_LINK_SUPPORT|
1921 FATTR4_WORD0_SYMLINK_SUPPORT|
1922 FATTR4_WORD0_ACLSUPPORT);
1923 return status;
1924}
1925
1926/*
1927 * a RENEW request
1928 */
1929static int nfs4_xdr_enc_renew(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp)
1930{
1931 struct xdr_stream xdr;
1932 struct compound_hdr hdr = {
1933 .nops = 1,
1934 };
1935
1936 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1937 encode_compound_hdr(&xdr, &hdr);
1938 return encode_renew(&xdr, clp);
1939}
1940
1941/*
1942 * a SETCLIENTID request
1943 */
1944static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, uint32_t *p, struct nfs4_setclientid *sc)
1945{
1946 struct xdr_stream xdr;
1947 struct compound_hdr hdr = {
1948 .nops = 1,
1949 };
1950
1951 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1952 encode_compound_hdr(&xdr, &hdr);
1953 return encode_setclientid(&xdr, sc);
1954}
1955
1956/*
1957 * a SETCLIENTID_CONFIRM request
1958 */
1959static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp)
1960{
1961 struct xdr_stream xdr;
1962 struct compound_hdr hdr = {
1963 .nops = 3,
1964 };
1965 const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
1966 int status;
1967
1968 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1969 encode_compound_hdr(&xdr, &hdr);
1970 status = encode_setclientid_confirm(&xdr, clp);
1971 if (!status)
1972 status = encode_putrootfh(&xdr);
1973 if (!status)
1974 status = encode_fsinfo(&xdr, lease_bitmap);
1975 return status;
1976}
1977
1978/*
1979 * DELEGRETURN request
1980 */
1981static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, uint32_t *p, const struct nfs4_delegreturnargs *args)
1982{
1983 struct xdr_stream xdr;
1984 struct compound_hdr hdr = {
1985 .nops = 2,
1986 };
1987 int status;
1988
1989 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1990 encode_compound_hdr(&xdr, &hdr);
1991 if ((status = encode_putfh(&xdr, args->fhandle)) == 0)
1992 status = encode_delegreturn(&xdr, args->stateid);
1993 return status;
1994}
1995
1996/*
1997 * START OF "GENERIC" DECODE ROUTINES.
1998 * These may look a little ugly since they are imported from a "generic"
1999 * set of XDR encode/decode routines which are intended to be shared by
2000 * all of our NFSv4 implementations (OpenBSD, MacOS X...).
2001 *
2002 * If the pain of reading these is too great, it should be a straightforward
2003 * task to translate them into Linux-specific versions which are more
2004 * consistent with the style used in NFSv2/v3...
2005 */
2006#define READ32(x) (x) = ntohl(*p++)
2007#define READ64(x) do { \
2008 (x) = (u64)ntohl(*p++) << 32; \
2009 (x) |= ntohl(*p++); \
2010} while (0)
2011#define READTIME(x) do { \
2012 p++; \
2013 (x.tv_sec) = ntohl(*p++); \
2014 (x.tv_nsec) = ntohl(*p++); \
2015} while (0)
2016#define COPYMEM(x,nbytes) do { \
2017 memcpy((x), p, nbytes); \
2018 p += XDR_QUADLEN(nbytes); \
2019} while (0)
2020
2021#define READ_BUF(nbytes) do { \
2022 p = xdr_inline_decode(xdr, nbytes); \
2023 if (!p) { \
2024 printk(KERN_WARNING "%s: reply buffer overflowed in line %d.", \
2025 __FUNCTION__, __LINE__); \
2026 return -EIO; \
2027 } \
2028} while (0)
2029
2030static int decode_opaque_inline(struct xdr_stream *xdr, uint32_t *len, char **string)
2031{
2032 uint32_t *p;
2033
2034 READ_BUF(4);
2035 READ32(*len);
2036 READ_BUF(*len);
2037 *string = (char *)p;
2038 return 0;
2039}
2040
2041static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
2042{
2043 uint32_t *p;
2044
2045 READ_BUF(8);
2046 READ32(hdr->status);
2047 READ32(hdr->taglen);
2048
2049 READ_BUF(hdr->taglen + 4);
2050 hdr->tag = (char *)p;
2051 p += XDR_QUADLEN(hdr->taglen);
2052 READ32(hdr->nops);
2053 return 0;
2054}
2055
2056static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
2057{
2058 uint32_t *p;
2059 uint32_t opnum;
2060 int32_t nfserr;
2061
2062 READ_BUF(8);
2063 READ32(opnum);
2064 if (opnum != expected) {
2065 printk(KERN_NOTICE
2066 "nfs4_decode_op_hdr: Server returned operation"
2067 " %d but we issued a request for %d\n",
2068 opnum, expected);
2069 return -EIO;
2070 }
2071 READ32(nfserr);
2072 if (nfserr != NFS_OK)
2073 return -nfs_stat_to_errno(nfserr);
2074 return 0;
2075}
2076
2077/* Dummy routine */
2078static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs4_client *clp)
2079{
2080 uint32_t *p;
2081 uint32_t strlen;
2082 char *str;
2083
2084 READ_BUF(12);
2085 return decode_opaque_inline(xdr, &strlen, &str);
2086}
2087
2088static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
2089{
2090 uint32_t bmlen, *p;
2091
2092 READ_BUF(4);
2093 READ32(bmlen);
2094
2095 bitmap[0] = bitmap[1] = 0;
2096 READ_BUF((bmlen << 2));
2097 if (bmlen > 0) {
2098 READ32(bitmap[0]);
2099 if (bmlen > 1)
2100 READ32(bitmap[1]);
2101 }
2102 return 0;
2103}
2104
2105static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, uint32_t **savep)
2106{
2107 uint32_t *p;
2108
2109 READ_BUF(4);
2110 READ32(*attrlen);
2111 *savep = xdr->p;
2112 return 0;
2113}
2114
2115static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
2116{
2117 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
2118 decode_attr_bitmap(xdr, bitmask);
2119 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
2120 } else
2121 bitmask[0] = bitmask[1] = 0;
2122 dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]);
2123 return 0;
2124}
2125
2126static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
2127{
2128 uint32_t *p;
2129
2130 *type = 0;
2131 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
2132 return -EIO;
2133 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
2134 READ_BUF(4);
2135 READ32(*type);
2136 if (*type < NF4REG || *type > NF4NAMEDATTR) {
2137 dprintk("%s: bad type %d\n", __FUNCTION__, *type);
2138 return -EIO;
2139 }
2140 bitmap[0] &= ~FATTR4_WORD0_TYPE;
2141 }
2142 dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type);
2143 return 0;
2144}
2145
2146static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
2147{
2148 uint32_t *p;
2149
2150 *change = 0;
2151 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
2152 return -EIO;
2153 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
2154 READ_BUF(8);
2155 READ64(*change);
2156 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
2157 }
2158 dprintk("%s: change attribute=%Lu\n", __FUNCTION__,
2159 (unsigned long long)*change);
2160 return 0;
2161}
2162
2163static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
2164{
2165 uint32_t *p;
2166
2167 *size = 0;
2168 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
2169 return -EIO;
2170 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
2171 READ_BUF(8);
2172 READ64(*size);
2173 bitmap[0] &= ~FATTR4_WORD0_SIZE;
2174 }
2175 dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size);
2176 return 0;
2177}
2178
2179static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2180{
2181 uint32_t *p;
2182
2183 *res = 0;
2184 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
2185 return -EIO;
2186 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
2187 READ_BUF(4);
2188 READ32(*res);
2189 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
2190 }
2191 dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true");
2192 return 0;
2193}
2194
2195static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2196{
2197 uint32_t *p;
2198
2199 *res = 0;
2200 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
2201 return -EIO;
2202 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
2203 READ_BUF(4);
2204 READ32(*res);
2205 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
2206 }
2207 dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true");
2208 return 0;
2209}
2210
2211static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fsid *fsid)
2212{
2213 uint32_t *p;
2214
2215 fsid->major = 0;
2216 fsid->minor = 0;
2217 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
2218 return -EIO;
2219 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
2220 READ_BUF(16);
2221 READ64(fsid->major);
2222 READ64(fsid->minor);
2223 bitmap[0] &= ~FATTR4_WORD0_FSID;
2224 }
2225 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__,
2226 (unsigned long long)fsid->major,
2227 (unsigned long long)fsid->minor);
2228 return 0;
2229}
2230
2231static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2232{
2233 uint32_t *p;
2234
2235 *res = 60;
2236 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
2237 return -EIO;
2238 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
2239 READ_BUF(4);
2240 READ32(*res);
2241 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
2242 }
2243 dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res);
2244 return 0;
2245}
2246
2247static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2248{
2249 uint32_t *p;
2250
2251 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
2252 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
2253 return -EIO;
2254 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
2255 READ_BUF(4);
2256 READ32(*res);
2257 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
2258 }
2259 dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res);
2260 return 0;
2261}
2262
2263static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
2264{
2265 uint32_t *p;
2266
2267 *fileid = 0;
2268 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
2269 return -EIO;
2270 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
2271 READ_BUF(8);
2272 READ64(*fileid);
2273 bitmap[0] &= ~FATTR4_WORD0_FILEID;
2274 }
2275 dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid);
2276 return 0;
2277}
2278
2279static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2280{
2281 uint32_t *p;
2282 int status = 0;
2283
2284 *res = 0;
2285 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
2286 return -EIO;
2287 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
2288 READ_BUF(8);
2289 READ64(*res);
2290 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
2291 }
2292 dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2293 return status;
2294}
2295
2296static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2297{
2298 uint32_t *p;
2299 int status = 0;
2300
2301 *res = 0;
2302 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
2303 return -EIO;
2304 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
2305 READ_BUF(8);
2306 READ64(*res);
2307 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
2308 }
2309 dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2310 return status;
2311}
2312
2313static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2314{
2315 uint32_t *p;
2316 int status = 0;
2317
2318 *res = 0;
2319 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
2320 return -EIO;
2321 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
2322 READ_BUF(8);
2323 READ64(*res);
2324 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
2325 }
2326 dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2327 return status;
2328}
2329
2330static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2331{
2332 uint32_t *p;
2333 int status = 0;
2334
2335 *res = 0;
2336 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
2337 return -EIO;
2338 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
2339 READ_BUF(8);
2340 READ64(*res);
2341 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
2342 }
2343 dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2344 return status;
2345}
2346
2347static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
2348{
2349 uint32_t *p;
2350 int status = 0;
2351
2352 *maxlink = 1;
2353 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
2354 return -EIO;
2355 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
2356 READ_BUF(4);
2357 READ32(*maxlink);
2358 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
2359 }
2360 dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink);
2361 return status;
2362}
2363
2364static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
2365{
2366 uint32_t *p;
2367 int status = 0;
2368
2369 *maxname = 1024;
2370 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
2371 return -EIO;
2372 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
2373 READ_BUF(4);
2374 READ32(*maxname);
2375 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
2376 }
2377 dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname);
2378 return status;
2379}
2380
2381static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2382{
2383 uint32_t *p;
2384 int status = 0;
2385
2386 *res = 1024;
2387 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
2388 return -EIO;
2389 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
2390 uint64_t maxread;
2391 READ_BUF(8);
2392 READ64(maxread);
2393 if (maxread > 0x7FFFFFFF)
2394 maxread = 0x7FFFFFFF;
2395 *res = (uint32_t)maxread;
2396 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
2397 }
2398 dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res);
2399 return status;
2400}
2401
2402static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2403{
2404 uint32_t *p;
2405 int status = 0;
2406
2407 *res = 1024;
2408 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
2409 return -EIO;
2410 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
2411 uint64_t maxwrite;
2412 READ_BUF(8);
2413 READ64(maxwrite);
2414 if (maxwrite > 0x7FFFFFFF)
2415 maxwrite = 0x7FFFFFFF;
2416 *res = (uint32_t)maxwrite;
2417 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
2418 }
2419 dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res);
2420 return status;
2421}
2422
2423static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode)
2424{
2425 uint32_t *p;
2426
2427 *mode = 0;
2428 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
2429 return -EIO;
2430 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
2431 READ_BUF(4);
2432 READ32(*mode);
2433 *mode &= ~S_IFMT;
2434 bitmap[1] &= ~FATTR4_WORD1_MODE;
2435 }
2436 dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode);
2437 return 0;
2438}
2439
2440static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
2441{
2442 uint32_t *p;
2443
2444 *nlink = 1;
2445 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
2446 return -EIO;
2447 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
2448 READ_BUF(4);
2449 READ32(*nlink);
2450 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
2451 }
2452 dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink);
2453 return 0;
2454}
2455
2456static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *uid)
2457{
2458 uint32_t len, *p;
2459
2460 *uid = -2;
2461 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
2462 return -EIO;
2463 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
2464 READ_BUF(4);
2465 READ32(len);
2466 READ_BUF(len);
2467 if (len < XDR_MAX_NETOBJ) {
2468 if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0)
2469 dprintk("%s: nfs_map_name_to_uid failed!\n",
2470 __FUNCTION__);
2471 } else
2472 printk(KERN_WARNING "%s: name too long (%u)!\n",
2473 __FUNCTION__, len);
2474 bitmap[1] &= ~FATTR4_WORD1_OWNER;
2475 }
2476 dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid);
2477 return 0;
2478}
2479
2480static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *gid)
2481{
2482 uint32_t len, *p;
2483
2484 *gid = -2;
2485 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
2486 return -EIO;
2487 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
2488 READ_BUF(4);
2489 READ32(len);
2490 READ_BUF(len);
2491 if (len < XDR_MAX_NETOBJ) {
2492 if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0)
2493 dprintk("%s: nfs_map_group_to_gid failed!\n",
2494 __FUNCTION__);
2495 } else
2496 printk(KERN_WARNING "%s: name too long (%u)!\n",
2497 __FUNCTION__, len);
2498 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
2499 }
2500 dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid);
2501 return 0;
2502}
2503
2504static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
2505{
2506 uint32_t major = 0, minor = 0, *p;
2507
2508 *rdev = MKDEV(0,0);
2509 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
2510 return -EIO;
2511 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
2512 dev_t tmp;
2513
2514 READ_BUF(8);
2515 READ32(major);
2516 READ32(minor);
2517 tmp = MKDEV(major, minor);
2518 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
2519 *rdev = tmp;
2520 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
2521 }
2522 dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor);
2523 return 0;
2524}
2525
2526static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2527{
2528 uint32_t *p;
2529 int status = 0;
2530
2531 *res = 0;
2532 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
2533 return -EIO;
2534 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
2535 READ_BUF(8);
2536 READ64(*res);
2537 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
2538 }
2539 dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2540 return status;
2541}
2542
2543static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2544{
2545 uint32_t *p;
2546 int status = 0;
2547
2548 *res = 0;
2549 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
2550 return -EIO;
2551 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
2552 READ_BUF(8);
2553 READ64(*res);
2554 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
2555 }
2556 dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2557 return status;
2558}
2559
2560static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2561{
2562 uint32_t *p;
2563 int status = 0;
2564
2565 *res = 0;
2566 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
2567 return -EIO;
2568 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
2569 READ_BUF(8);
2570 READ64(*res);
2571 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
2572 }
2573 dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2574 return status;
2575}
2576
2577static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
2578{
2579 uint32_t *p;
2580
2581 *used = 0;
2582 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
2583 return -EIO;
2584 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
2585 READ_BUF(8);
2586 READ64(*used);
2587 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
2588 }
2589 dprintk("%s: space used=%Lu\n", __FUNCTION__,
2590 (unsigned long long)*used);
2591 return 0;
2592}
2593
2594static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
2595{
2596 uint32_t *p;
2597 uint64_t sec;
2598 uint32_t nsec;
2599
2600 READ_BUF(12);
2601 READ64(sec);
2602 READ32(nsec);
2603 time->tv_sec = (time_t)sec;
2604 time->tv_nsec = (long)nsec;
2605 return 0;
2606}
2607
2608static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2609{
2610 int status = 0;
2611
2612 time->tv_sec = 0;
2613 time->tv_nsec = 0;
2614 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
2615 return -EIO;
2616 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
2617 status = decode_attr_time(xdr, time);
2618 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
2619 }
2620 dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2621 return status;
2622}
2623
2624static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2625{
2626 int status = 0;
2627
2628 time->tv_sec = 0;
2629 time->tv_nsec = 0;
2630 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
2631 return -EIO;
2632 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
2633 status = decode_attr_time(xdr, time);
2634 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
2635 }
2636 dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2637 return status;
2638}
2639
2640static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2641{
2642 int status = 0;
2643
2644 time->tv_sec = 0;
2645 time->tv_nsec = 0;
2646 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
2647 return -EIO;
2648 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
2649 status = decode_attr_time(xdr, time);
2650 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
2651 }
2652 dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2653 return status;
2654}
2655
2656static int verify_attr_len(struct xdr_stream *xdr, uint32_t *savep, uint32_t attrlen)
2657{
2658 unsigned int attrwords = XDR_QUADLEN(attrlen);
2659 unsigned int nwords = xdr->p - savep;
2660
2661 if (unlikely(attrwords != nwords)) {
2662 printk(KERN_WARNING "%s: server returned incorrect attribute length: %u %c %u\n",
2663 __FUNCTION__,
2664 attrwords << 2,
2665 (attrwords < nwords) ? '<' : '>',
2666 nwords << 2);
2667 return -EIO;
2668 }
2669 return 0;
2670}
2671
2672static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2673{
2674 uint32_t *p;
2675
2676 READ_BUF(20);
2677 READ32(cinfo->atomic);
2678 READ64(cinfo->before);
2679 READ64(cinfo->after);
2680 return 0;
2681}
2682
2683static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
2684{
2685 uint32_t *p;
2686 uint32_t supp, acc;
2687 int status;
2688
2689 status = decode_op_hdr(xdr, OP_ACCESS);
2690 if (status)
2691 return status;
2692 READ_BUF(8);
2693 READ32(supp);
2694 READ32(acc);
2695 access->supported = supp;
2696 access->access = acc;
2697 return 0;
2698}
2699
2700static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
2701{
2702 uint32_t *p;
2703 int status;
2704
2705 status = decode_op_hdr(xdr, OP_CLOSE);
2706 if (status)
2707 return status;
2708 READ_BUF(sizeof(res->stateid.data));
2709 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
2710 return 0;
2711}
2712
2713static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
2714{
2715 uint32_t *p;
2716 int status;
2717
2718 status = decode_op_hdr(xdr, OP_COMMIT);
2719 if (status)
2720 return status;
2721 READ_BUF(8);
2722 COPYMEM(res->verf->verifier, 8);
2723 return 0;
2724}
2725
2726static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2727{
2728 uint32_t *p;
2729 uint32_t bmlen;
2730 int status;
2731
2732 status = decode_op_hdr(xdr, OP_CREATE);
2733 if (status)
2734 return status;
2735 if ((status = decode_change_info(xdr, cinfo)))
2736 return status;
2737 READ_BUF(4);
2738 READ32(bmlen);
2739 READ_BUF(bmlen << 2);
2740 return 0;
2741}
2742
2743static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
2744{
2745 uint32_t *savep;
2746 uint32_t attrlen,
2747 bitmap[2] = {0};
2748 int status;
2749
2750 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2751 goto xdr_error;
2752 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2753 goto xdr_error;
2754 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2755 goto xdr_error;
2756 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
2757 goto xdr_error;
2758 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
2759 goto xdr_error;
2760 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
2761 goto xdr_error;
2762 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
2763 goto xdr_error;
2764 status = verify_attr_len(xdr, savep, attrlen);
2765xdr_error:
16c32b71 2766 dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
1da177e4
LT		 2767 return status;
2768}
2769
2770static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
2771{
2772 uint32_t *savep;
2773 uint32_t attrlen,
2774 bitmap[2] = {0};
2775 int status;
2776
2777 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2778 goto xdr_error;
2779 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2780 goto xdr_error;
2781 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2782 goto xdr_error;
2783
2784 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
2785 goto xdr_error;
2786 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
2787 goto xdr_error;
2788 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
2789 goto xdr_error;
2790 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
2791 goto xdr_error;
2792 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
2793 goto xdr_error;
2794 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
2795 goto xdr_error;
2796
2797 status = verify_attr_len(xdr, savep, attrlen);
2798xdr_error:
16c32b71 2799 dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
1da177e4
LT		 2800 return status;
2801}
2802
2803static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
2804{
2805 uint32_t *savep;
2806 uint32_t attrlen,
2807 bitmap[2] = {0};
2808 int status;
2809
2810 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2811 goto xdr_error;
2812 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2813 goto xdr_error;
2814 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2815 goto xdr_error;
2816
2817 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
2818 goto xdr_error;
2819 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
2820 goto xdr_error;
2821
2822 status = verify_attr_len(xdr, savep, attrlen);
2823xdr_error:
16c32b71 2824 dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
1da177e4
LT		 2825 return status;
2826}
2827
2828static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server)
2829{
2830 uint32_t *savep;
2831 uint32_t attrlen,
2832 bitmap[2] = {0},
2833 type;
2834 int status, fmode = 0;
2835
2836 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2837 goto xdr_error;
2838 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2839 goto xdr_error;
2840
2841 fattr->bitmap[0] = bitmap[0];
2842 fattr->bitmap[1] = bitmap[1];
2843
2844 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2845 goto xdr_error;
2846
2847
2848 if ((status = decode_attr_type(xdr, bitmap, &type)) != 0)
2849 goto xdr_error;
2850 fattr->type = nfs_type2fmt[type].nfs2type;
2851 fmode = nfs_type2fmt[type].mode;
2852
2853 if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0)
2854 goto xdr_error;
2855 if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0)
2856 goto xdr_error;
2857 if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid_u.nfs4)) != 0)
2858 goto xdr_error;
2859 if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0)
2860 goto xdr_error;
2861 if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0)
2862 goto xdr_error;
2863 fattr->mode |= fmode;
2864 if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0)
2865 goto xdr_error;
2866 if ((status = decode_attr_owner(xdr, bitmap, server->nfs4_state, &fattr->uid)) != 0)
2867 goto xdr_error;
2868 if ((status = decode_attr_group(xdr, bitmap, server->nfs4_state, &fattr->gid)) != 0)
2869 goto xdr_error;
2870 if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0)
2871 goto xdr_error;
2872 if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0)
2873 goto xdr_error;
2874 if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0)
2875 goto xdr_error;
2876 if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0)
2877 goto xdr_error;
2878 if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0)
2879 goto xdr_error;
33801147 2880 if ((status = verify_attr_len(xdr, savep, attrlen)) == 0)
1da177e4 2881 fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4;
1da177e4 2882xdr_error:
16c32b71 2883 dprintk("%s: xdr returned %d\n", __FUNCTION__, -status);
1da177e4
LT		 2884 return status;
2885}
2886
2887
2888static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
2889{
2890 uint32_t *savep;
2891 uint32_t attrlen, bitmap[2];
2892 int status;
2893
2894 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2895 goto xdr_error;
2896 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2897 goto xdr_error;
2898 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2899 goto xdr_error;
2900
2901 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
2902
2903 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
2904 goto xdr_error;
2905 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
2906 goto xdr_error;
2907 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
2908 goto xdr_error;
2909 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
2910 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
2911 goto xdr_error;
2912 fsinfo->wtpref = fsinfo->wtmax;
2913
2914 status = verify_attr_len(xdr, savep, attrlen);
2915xdr_error:
16c32b71 2916 dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
1da177e4
LT		 2917 return status;
2918}
2919
2920static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
2921{
2922 uint32_t *p;
2923 uint32_t len;
2924 int status;
2925
2926 status = decode_op_hdr(xdr, OP_GETFH);
2927 if (status)
2928 return status;
2929 /* Zero handle first to allow comparisons */
2930 memset(fh, 0, sizeof(*fh));
2931
2932 READ_BUF(4);
2933 READ32(len);
2934 if (len > NFS4_FHSIZE)
2935 return -EIO;
2936 fh->size = len;
2937 READ_BUF(len);
2938 COPYMEM(fh->data, len);
2939 return 0;
2940}
2941
2942static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2943{
2944 int status;
2945
2946 status = decode_op_hdr(xdr, OP_LINK);
2947 if (status)
2948 return status;
2949 return decode_change_info(xdr, cinfo);
2950}
2951
2952/*
2953 * We create the owner, so we know a proper owner.id length is 4.
2954 */
2955static int decode_lock_denied (struct xdr_stream *xdr, struct nfs_lock_denied *denied)
2956{
2957 uint32_t *p;
2958 uint32_t namelen;
2959
2960 READ_BUF(32);
2961 READ64(denied->offset);
2962 READ64(denied->length);
2963 READ32(denied->type);
2964 READ64(denied->owner.clientid);
2965 READ32(namelen);
2966 READ_BUF(namelen);
2967 if (namelen == 4)
2968 READ32(denied->owner.id);
2969 return -NFS4ERR_DENIED;
2970}
2971
2972static int decode_lock(struct xdr_stream *xdr, struct nfs_lockres *res)
2973{
2974 uint32_t *p;
2975 int status;
2976
2977 status = decode_op_hdr(xdr, OP_LOCK);
2978 if (status == 0) {
06735b34
TM		 2979 READ_BUF(sizeof(res->u.stateid.data));
2980 COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data));
1da177e4
LT		 2981 } else if (status == -NFS4ERR_DENIED)
2982 return decode_lock_denied(xdr, &res->u.denied);
2983 return status;
2984}
2985
2986static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockres *res)
2987{
2988 int status;
2989 status = decode_op_hdr(xdr, OP_LOCKT);
2990 if (status == -NFS4ERR_DENIED)
2991 return decode_lock_denied(xdr, &res->u.denied);
2992 return status;
2993}
2994
2995static int decode_locku(struct xdr_stream *xdr, struct nfs_lockres *res)
2996{
2997 uint32_t *p;
2998 int status;
2999
3000 status = decode_op_hdr(xdr, OP_LOCKU);
3001 if (status == 0) {
faf5f49c
TM		 3002 READ_BUF(sizeof(res->u.stateid.data));
3003 COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data));
1da177e4
LT		 3004 }
3005 return status;
3006}
3007
3008static int decode_lookup(struct xdr_stream *xdr)
3009{
3010 return decode_op_hdr(xdr, OP_LOOKUP);
3011}
3012
3013/* This is too sick! */
3014static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
3015{
3016 uint32_t *p;
3017 uint32_t limit_type, nblocks, blocksize;
3018
3019 READ_BUF(12);
3020 READ32(limit_type);
3021 switch (limit_type) {
3022 case 1:
3023 READ64(*maxsize);
3024 break;
3025 case 2:
3026 READ32(nblocks);
3027 READ32(blocksize);
3028 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
3029 }
3030 return 0;
3031}
3032
3033static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
3034{
3035 uint32_t *p;
3036 uint32_t delegation_type;
3037
3038 READ_BUF(4);
3039 READ32(delegation_type);
3040 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
3041 res->delegation_type = 0;
3042 return 0;
3043 }
3044 READ_BUF(20);
3045 COPYMEM(res->delegation.data, sizeof(res->delegation.data));
3046 READ32(res->do_recall);
3047 switch (delegation_type) {
3048 case NFS4_OPEN_DELEGATE_READ:
3049 res->delegation_type = FMODE_READ;
3050 break;
3051 case NFS4_OPEN_DELEGATE_WRITE:
3052 res->delegation_type = FMODE_WRITE|FMODE_READ;
3053 if (decode_space_limit(xdr, &res->maxsize) < 0)
3054 return -EIO;
3055 }
3056 return decode_ace(xdr, NULL, res->server->nfs4_state);
3057}
3058
3059static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
3060{
3061 uint32_t *p;
3062 uint32_t bmlen;
3063 int status;
3064
3065 status = decode_op_hdr(xdr, OP_OPEN);
3066 if (status)
3067 return status;
3068 READ_BUF(sizeof(res->stateid.data));
3069 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3070
3071 decode_change_info(xdr, &res->cinfo);
3072
3073 READ_BUF(8);
3074 READ32(res->rflags);
3075 READ32(bmlen);
3076 if (bmlen > 10)
3077 goto xdr_error;
3078
3079 READ_BUF(bmlen << 2);
3080 p += bmlen;
3081 return decode_delegation(xdr, res);
3082xdr_error:
16c32b71 3083 dprintk("%s: Bitmap too large! Length = %u\n", __FUNCTION__, bmlen);
1da177e4
LT		 3084 return -EIO;
3085}
3086
3087static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
3088{
3089 uint32_t *p;
3090 int status;
3091
3092 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
3093 if (status)
3094 return status;
3095 READ_BUF(sizeof(res->stateid.data));
3096 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3097 return 0;
3098}
3099
3100static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
3101{
3102 uint32_t *p;
3103 int status;
3104
3105 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
3106 if (status)
3107 return status;
3108 READ_BUF(sizeof(res->stateid.data));
3109 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3110 return 0;
3111}
3112
3113static int decode_putfh(struct xdr_stream *xdr)
3114{
3115 return decode_op_hdr(xdr, OP_PUTFH);
3116}
3117
3118static int decode_putrootfh(struct xdr_stream *xdr)
3119{
3120 return decode_op_hdr(xdr, OP_PUTROOTFH);
3121}
3122
3123static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res)
3124{
3125 struct kvec *iov = req->rq_rcv_buf.head;
3126 uint32_t *p;
3127 uint32_t count, eof, recvd, hdrlen;
3128 int status;
3129
3130 status = decode_op_hdr(xdr, OP_READ);
3131 if (status)
3132 return status;
3133 READ_BUF(8);
3134 READ32(eof);
3135 READ32(count);
3136 hdrlen = (u8 *) p - (u8 *) iov->iov_base;
3137 recvd = req->rq_rcv_buf.len - hdrlen;
3138 if (count > recvd) {
3139 printk(KERN_WARNING "NFS: server cheating in read reply: "
3140 "count %u > recvd %u\n", count, recvd);
3141 count = recvd;
3142 eof = 0;
3143 }
3144 xdr_read_pages(xdr, count);
3145 res->eof = eof;
3146 res->count = count;
3147 return 0;
3148}
3149
3150static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
3151{
3152 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
3153 struct page *page = *rcvbuf->pages;
3154 struct kvec *iov = rcvbuf->head;
3155 unsigned int nr, pglen = rcvbuf->page_len;
3156 uint32_t *end, *entry, *p, *kaddr;
3157 uint32_t len, attrlen;
3158 int hdrlen, recvd, status;
3159
3160 status = decode_op_hdr(xdr, OP_READDIR);
3161 if (status)
3162 return status;
3163 READ_BUF(8);
3164 COPYMEM(readdir->verifier.data, 8);
eadf4598
TM		 3165 dprintk("%s: verifier = 0x%x%x\n",
3166 __FUNCTION__,
3167 ((u32 *)readdir->verifier.data)[0],
3168 ((u32 *)readdir->verifier.data)[1]);
3169
1da177e4
LT		 3170
3171 hdrlen = (char *) p - (char *) iov->iov_base;
3172 recvd = rcvbuf->len - hdrlen;
3173 if (pglen > recvd)
3174 pglen = recvd;
3175 xdr_read_pages(xdr, pglen);
3176
3177 BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE);
3178 kaddr = p = (uint32_t *) kmap_atomic(page, KM_USER0);
3179 end = (uint32_t *) ((char *)p + pglen + readdir->pgbase);
3180 entry = p;
3181 for (nr = 0; *p++; nr++) {
3182 if (p + 3 > end)
3183 goto short_pkt;
eadf4598 3184 dprintk("cookie = %Lu, ", *((unsigned long long *)p));
1da177e4
LT		 3185 p += 2; /* cookie */
3186 len = ntohl(*p++); /* filename length */
3187 if (len > NFS4_MAXNAMLEN) {
3188 printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len);
3189 goto err_unmap;
3190 }
eadf4598 3191 dprintk("filename = %*s\n", len, (char *)p);
1da177e4
LT		 3192 p += XDR_QUADLEN(len);
3193 if (p + 1 > end)
3194 goto short_pkt;
3195 len = ntohl(*p++); /* bitmap length */
3196 p += len;
3197 if (p + 1 > end)
3198 goto short_pkt;
3199 attrlen = XDR_QUADLEN(ntohl(*p++));
3200 p += attrlen; /* attributes */
3201 if (p + 2 > end)
3202 goto short_pkt;
3203 entry = p;
3204 }
3205 if (!nr && (entry[0] != 0 || entry[1] == 0))
3206 goto short_pkt;
3207out:
3208 kunmap_atomic(kaddr, KM_USER0);
3209 return 0;
3210short_pkt:
eadf4598 3211 dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr);
1da177e4
LT		 3212 entry[0] = entry[1] = 0;
3213 /* truncate listing ? */
3214 if (!nr) {
3215 printk(KERN_NOTICE "NFS: readdir reply truncated!\n");
3216 entry[1] = 1;
3217 }
3218 goto out;
3219err_unmap:
3220 kunmap_atomic(kaddr, KM_USER0);
3221 return -errno_NFSERR_IO;
3222}
3223
3224static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
3225{
3226 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
3227 struct kvec *iov = rcvbuf->head;
3228 int hdrlen, len, recvd;
3229 uint32_t *p;
3230 char *kaddr;
3231 int status;
3232
3233 status = decode_op_hdr(xdr, OP_READLINK);
3234 if (status)
3235 return status;
3236
3237 /* Convert length of symlink */
3238 READ_BUF(4);
3239 READ32(len);
3240 if (len >= rcvbuf->page_len || len <= 0) {
3241 dprintk(KERN_WARNING "nfs: server returned giant symlink!\n");
3242 return -ENAMETOOLONG;
3243 }
3244 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
3245 recvd = req->rq_rcv_buf.len - hdrlen;
3246 if (recvd < len) {
3247 printk(KERN_WARNING "NFS: server cheating in readlink reply: "
3248 "count %u > recvd %u\n", len, recvd);
3249 return -EIO;
3250 }
3251 xdr_read_pages(xdr, len);
3252 /*
3253 * The XDR encode routine has set things up so that
3254 * the link text will be copied directly into the
3255 * buffer. We just have to do overflow-checking,
3256 * and and null-terminate the text (the VFS expects
3257 * null-termination).
3258 */
3259 kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0);
3260 kaddr[len+rcvbuf->page_base] = '\0';
3261 kunmap_atomic(kaddr, KM_USER0);
3262 return 0;
3263}
3264
3265static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3266{
3267 int status;
3268
3269 status = decode_op_hdr(xdr, OP_REMOVE);
3270 if (status)
3271 goto out;
3272 status = decode_change_info(xdr, cinfo);
3273out:
3274 return status;
3275}
3276
3277static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
3278 struct nfs4_change_info *new_cinfo)
3279{
3280 int status;
3281
3282 status = decode_op_hdr(xdr, OP_RENAME);
3283 if (status)
3284 goto out;
3285 if ((status = decode_change_info(xdr, old_cinfo)))
3286 goto out;
3287 status = decode_change_info(xdr, new_cinfo);
3288out:
3289 return status;
3290}
3291
3292static int decode_renew(struct xdr_stream *xdr)
3293{
3294 return decode_op_hdr(xdr, OP_RENEW);
3295}
3296
56ae19f3
TM		 3297static int
3298decode_restorefh(struct xdr_stream *xdr)
3299{
3300 return decode_op_hdr(xdr, OP_RESTOREFH);
3301}
3302
029d105e
BF		 3303static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
3304 size_t *acl_len)
3305{
3306 uint32_t *savep;
3307 uint32_t attrlen,
3308 bitmap[2] = {0};
3309 struct kvec *iov = req->rq_rcv_buf.head;
3310 int status;
3311
3312 *acl_len = 0;
3313 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3314 goto out;
3315 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3316 goto out;
3317 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3318 goto out;
3319
3320 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
3321 return -EIO;
3322 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
3323 int hdrlen, recvd;
3324
3325 /* We ignore &savep and don't do consistency checks on
3326 * the attr length. Let userspace figure it out.... */
3327 hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base;
3328 recvd = req->rq_rcv_buf.len - hdrlen;
3329 if (attrlen > recvd) {
3330 printk(KERN_WARNING "NFS: server cheating in getattr"
3331 " acl reply: attrlen %u > recvd %u\n",
3332 attrlen, recvd);
3333 return -EINVAL;
3334 }
3335 if (attrlen <= *acl_len)
3336 xdr_read_pages(xdr, attrlen);
3337 *acl_len = attrlen;
8c233cf9
BF		 3338 } else
3339 status = -EOPNOTSUPP;
029d105e
BF		 3340
3341out:
3342 return status;
3343}
3344
1da177e4
LT		 3345static int
3346decode_savefh(struct xdr_stream *xdr)
3347{
3348 return decode_op_hdr(xdr, OP_SAVEFH);
3349}
3350
3351static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res)
3352{
3353 uint32_t *p;
3354 uint32_t bmlen;
3355 int status;
3356
3357
3358 status = decode_op_hdr(xdr, OP_SETATTR);
3359 if (status)
3360 return status;
3361 READ_BUF(4);
3362 READ32(bmlen);
3363 READ_BUF(bmlen << 2);
3364 return 0;
3365}
3366
3367static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_client *clp)
3368{
3369 uint32_t *p;
3370 uint32_t opnum;
3371 int32_t nfserr;
3372
3373 READ_BUF(8);
3374 READ32(opnum);
3375 if (opnum != OP_SETCLIENTID) {
3376 printk(KERN_NOTICE
3377 "nfs4_decode_setclientid: Server returned operation"
3378 " %d\n", opnum);
3379 return -EIO;
3380 }
3381 READ32(nfserr);
3382 if (nfserr == NFS_OK) {
3383 READ_BUF(8 + sizeof(clp->cl_confirm.data));
3384 READ64(clp->cl_clientid);
3385 COPYMEM(clp->cl_confirm.data, sizeof(clp->cl_confirm.data));
3386 } else if (nfserr == NFSERR_CLID_INUSE) {
3387 uint32_t len;
3388
3389 /* skip netid string */
3390 READ_BUF(4);
3391 READ32(len);
3392 READ_BUF(len);
3393
3394 /* skip uaddr string */
3395 READ_BUF(4);
3396 READ32(len);
3397 READ_BUF(len);
3398 return -NFSERR_CLID_INUSE;
3399 } else
3400 return -nfs_stat_to_errno(nfserr);
3401
3402 return 0;
3403}
3404
3405static int decode_setclientid_confirm(struct xdr_stream *xdr)
3406{
3407 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
3408}
3409
3410static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
3411{
3412 uint32_t *p;
3413 int status;
3414
3415 status = decode_op_hdr(xdr, OP_WRITE);
3416 if (status)
3417 return status;
3418
3419 READ_BUF(16);
3420 READ32(res->count);
3421 READ32(res->verf->committed);
3422 COPYMEM(res->verf->verifier, 8);
3423 return 0;
3424}
3425
3426static int decode_delegreturn(struct xdr_stream *xdr)
3427{
3428 return decode_op_hdr(xdr, OP_DELEGRETURN);
3429}
3430
3431/*
3432 * Decode OPEN_DOWNGRADE response
3433 */
3434static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res)
3435{
3436 struct xdr_stream xdr;
3437 struct compound_hdr hdr;
3438 int status;
3439
3440 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3441 status = decode_compound_hdr(&xdr, &hdr);
3442 if (status)
3443 goto out;
3444 status = decode_putfh(&xdr);
3445 if (status)
3446 goto out;
3447 status = decode_open_downgrade(&xdr, res);
516a6af6
TM		 3448 if (status != 0)
3449 goto out;
3450 decode_getfattr(&xdr, res->fattr, res->server);
1da177e4
LT		 3451out:
3452 return status;
3453}
3454
3455/*
3456 * END OF "GENERIC" DECODE ROUTINES.
3457 */
3458
3459/*
3460 * Decode ACCESS response
3461 */
3462static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_accessres *res)
3463{
3464 struct xdr_stream xdr;
3465 struct compound_hdr hdr;
3466 int status;
3467
3468 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3469 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3470 goto out;
3471 if ((status = decode_putfh(&xdr)) == 0)
3472 status = decode_access(&xdr, res);
3473out:
3474 return status;
3475}
3476
3477/*
3478 * Decode LOOKUP response
3479 */
3480static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res)
3481{
3482 struct xdr_stream xdr;
3483 struct compound_hdr hdr;
3484 int status;
3485
3486 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3487 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3488 goto out;
3489 if ((status = decode_putfh(&xdr)) != 0)
3490 goto out;
3491 if ((status = decode_lookup(&xdr)) != 0)
3492 goto out;
3493 if ((status = decode_getfh(&xdr, res->fh)) != 0)
3494 goto out;
3495 status = decode_getfattr(&xdr, res->fattr, res->server);
3496out:
3497 return status;
3498}
3499
3500/*
3501 * Decode LOOKUP_ROOT response
3502 */
3503static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res)
3504{
3505 struct xdr_stream xdr;
3506 struct compound_hdr hdr;
3507 int status;
3508
3509 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3510 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3511 goto out;
3512 if ((status = decode_putrootfh(&xdr)) != 0)
3513 goto out;
3514 if ((status = decode_getfh(&xdr, res->fh)) == 0)
3515 status = decode_getfattr(&xdr, res->fattr, res->server);
3516out:
3517 return status;
3518}
3519
3520/*
3521 * Decode REMOVE response
3522 */
16e42959 3523static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_remove_res *res)
1da177e4
LT		 3524{
3525 struct xdr_stream xdr;
3526 struct compound_hdr hdr;
3527 int status;
3528
3529 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3530 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3531 goto out;
16e42959
TM		 3532 if ((status = decode_putfh(&xdr)) != 0)
3533 goto out;
3534 if ((status = decode_remove(&xdr, &res->cinfo)) != 0)
3535 goto out;
3536 decode_getfattr(&xdr, res->dir_attr, res->server);
1da177e4
LT		 3537out:
3538 return status;
3539}
3540
3541/*
3542 * Decode RENAME response
3543 */
3544static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_rename_res *res)
3545{
3546 struct xdr_stream xdr;
3547 struct compound_hdr hdr;
3548 int status;
3549
3550 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3551 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3552 goto out;
3553 if ((status = decode_putfh(&xdr)) != 0)
3554 goto out;
3555 if ((status = decode_savefh(&xdr)) != 0)
3556 goto out;
3557 if ((status = decode_putfh(&xdr)) != 0)
3558 goto out;
6caf2c82
TM		 3559 if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0)
3560 goto out;
3561 /* Current FH is target directory */
3562 if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0)
3563 goto out;
3564 if ((status = decode_restorefh(&xdr)) != 0)
3565 goto out;
3566 decode_getfattr(&xdr, res->old_fattr, res->server);
1da177e4
LT		 3567out:
3568 return status;
3569}
3570
3571/*
3572 * Decode LINK response
3573 */
91ba2eee 3574static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_link_res *res)
1da177e4
LT		 3575{
3576 struct xdr_stream xdr;
3577 struct compound_hdr hdr;
3578 int status;
3579
3580 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3581 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3582 goto out;
3583 if ((status = decode_putfh(&xdr)) != 0)
3584 goto out;
3585 if ((status = decode_savefh(&xdr)) != 0)
3586 goto out;
3587 if ((status = decode_putfh(&xdr)) != 0)
3588 goto out;
91ba2eee
TM		 3589 if ((status = decode_link(&xdr, &res->cinfo)) != 0)
3590 goto out;
3591 /*
3592 * Note order: OP_LINK leaves the directory as the current
3593 * filehandle.
3594 */
3595 if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0)
3596 goto out;
3597 if ((status = decode_restorefh(&xdr)) != 0)
3598 goto out;
3599 decode_getfattr(&xdr, res->fattr, res->server);
1da177e4
LT		 3600out:
3601 return status;
3602}
3603
3604/*
3605 * Decode CREATE response
3606 */
3607static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res)
3608{
3609 struct xdr_stream xdr;
3610 struct compound_hdr hdr;
3611 int status;
3612
3613 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3614 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3615 goto out;
3616 if ((status = decode_putfh(&xdr)) != 0)
3617 goto out;
56ae19f3
TM		 3618 if ((status = decode_savefh(&xdr)) != 0)
3619 goto out;
1da177e4
LT		 3620 if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0)
3621 goto out;
3622 if ((status = decode_getfh(&xdr, res->fh)) != 0)
3623 goto out;
56ae19f3
TM		 3624 if (decode_getfattr(&xdr, res->fattr, res->server) != 0)
3625 goto out;
3626 if ((status = decode_restorefh(&xdr)) != 0)
3627 goto out;
3628 decode_getfattr(&xdr, res->dir_fattr, res->server);
1da177e4
LT		 3629out:
3630 return status;
3631}
3632
3633/*
3634 * Decode SYMLINK response
3635 */
3636static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res)
3637{
3638 return nfs4_xdr_dec_create(rqstp, p, res);
3639}
3640
3641/*
3642 * Decode GETATTR response
3643 */
3644static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_getattr_res *res)
3645{
3646 struct xdr_stream xdr;
3647 struct compound_hdr hdr;
3648 int status;
3649
3650 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3651 status = decode_compound_hdr(&xdr, &hdr);
3652 if (status)
3653 goto out;
3654 status = decode_putfh(&xdr);
3655 if (status)
3656 goto out;
3657 status = decode_getfattr(&xdr, res->fattr, res->server);
3658out:
3659 return status;
3660
3661}
3662
23ec6965
BF		 3663/*
3664 * Encode an SETACL request
3665 */
3666static int
3667nfs4_xdr_enc_setacl(struct rpc_rqst *req, uint32_t *p, struct nfs_setaclargs *args)
3668{
3669 struct xdr_stream xdr;
3670 struct compound_hdr hdr = {
3671 .nops = 2,
3672 };
3673 int status;
3674
3675 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
3676 encode_compound_hdr(&xdr, &hdr);
3677 status = encode_putfh(&xdr, args->fh);
3678 if (status)
3679 goto out;
3680 status = encode_setacl(&xdr, args);
3681out:
3682 return status;
3683}
3684/*
3685 * Decode SETACL response
3686 */
3687static int
3688nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, uint32_t *p, void *res)
3689{
3690 struct xdr_stream xdr;
3691 struct compound_hdr hdr;
3692 int status;
3693
3694 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3695 status = decode_compound_hdr(&xdr, &hdr);
3696 if (status)
3697 goto out;
3698 status = decode_putfh(&xdr);
3699 if (status)
3700 goto out;
3701 status = decode_setattr(&xdr, res);
3702out:
3703 return status;
3704}
1da177e4 3705
029d105e
BF		 3706/*
3707 * Decode GETACL response
3708 */
3709static int
3710nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, uint32_t *p, size_t *acl_len)
3711{
3712 struct xdr_stream xdr;
3713 struct compound_hdr hdr;
3714 int status;
3715
3716 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3717 status = decode_compound_hdr(&xdr, &hdr);
3718 if (status)
3719 goto out;
3720 status = decode_putfh(&xdr);
3721 if (status)
3722 goto out;
3723 status = decode_getacl(&xdr, rqstp, acl_len);
3724
3725out:
3726 return status;
3727}
3728
1da177e4
LT		 3729/*
3730 * Decode CLOSE response
3731 */
3732static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res)
3733{
3734 struct xdr_stream xdr;
3735 struct compound_hdr hdr;
3736 int status;
3737
3738 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3739 status = decode_compound_hdr(&xdr, &hdr);
3740 if (status)
3741 goto out;
3742 status = decode_putfh(&xdr);
3743 if (status)
3744 goto out;
3745 status = decode_close(&xdr, res);
516a6af6
TM		 3746 if (status != 0)
3747 goto out;
3748 /*
3749 * Note: Server may do delete on close for this file
3750 * in which case the getattr call will fail with
3751 * an ESTALE error. Shouldn't be a problem,
3752 * though, since fattr->valid will remain unset.
3753 */
3754 decode_getfattr(&xdr, res->fattr, res->server);
1da177e4
LT		 3755out:
3756 return status;
3757}
3758
3759/*
3760 * Decode OPEN response
3761 */
3762static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res)
3763{
3764 struct xdr_stream xdr;
3765 struct compound_hdr hdr;
3766 int status;
3767
3768 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3769 status = decode_compound_hdr(&xdr, &hdr);
3770 if (status)
3771 goto out;
3772 status = decode_putfh(&xdr);
3773 if (status)
3774 goto out;
56ae19f3
TM		 3775 status = decode_savefh(&xdr);
3776 if (status)
3777 goto out;
1da177e4
LT		 3778 status = decode_open(&xdr, res);
3779 if (status)
3780 goto out;
3781 status = decode_getfh(&xdr, &res->fh);
3782 if (status)
3783 goto out;
56ae19f3
TM		 3784 if (decode_getfattr(&xdr, res->f_attr, res->server) != 0)
3785 goto out;
3786 if ((status = decode_restorefh(&xdr)) != 0)
3787 goto out;
3788 decode_getfattr(&xdr, res->dir_attr, res->server);
1da177e4
LT		 3789out:
3790 return status;
3791}
3792
3793/*
3794 * Decode OPEN_CONFIRM response
3795 */
3796static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_open_confirmres *res)
3797{
3798 struct xdr_stream xdr;
3799 struct compound_hdr hdr;
3800 int status;
3801
3802 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3803 status = decode_compound_hdr(&xdr, &hdr);
3804 if (status)
3805 goto out;
3806 status = decode_putfh(&xdr);
3807 if (status)
3808 goto out;
3809 status = decode_open_confirm(&xdr, res);
3810out:
3811 return status;
3812}
3813
3814/*
3815 * Decode OPEN response
3816 */
3817static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res)
3818{
3819 struct xdr_stream xdr;
3820 struct compound_hdr hdr;
3821 int status;
3822
3823 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3824 status = decode_compound_hdr(&xdr, &hdr);
3825 if (status)
3826 goto out;
3827 status = decode_putfh(&xdr);
3828 if (status)
3829 goto out;
3830 status = decode_open(&xdr, res);
3831out:
3832 return status;
3833}
3834
3835/*
3836 * Decode SETATTR response
3837 */
3838static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_setattrres *res)
3839{
3840 struct xdr_stream xdr;
3841 struct compound_hdr hdr;
3842 int status;
3843
3844 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3845 status = decode_compound_hdr(&xdr, &hdr);
3846 if (status)
3847 goto out;
3848 status = decode_putfh(&xdr);
3849 if (status)
3850 goto out;
3851 status = decode_setattr(&xdr, res);
3852 if (status)
3853 goto out;
3854 status = decode_getfattr(&xdr, res->fattr, res->server);
3855 if (status == NFS4ERR_DELAY)
3856 status = 0;
3857out:
3858 return status;
3859}
3860
3861/*
3862 * Decode LOCK response
3863 */
3864static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res)
3865{
3866 struct xdr_stream xdr;
3867 struct compound_hdr hdr;
3868 int status;
3869
3870 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3871 status = decode_compound_hdr(&xdr, &hdr);
3872 if (status)
3873 goto out;
3874 status = decode_putfh(&xdr);
3875 if (status)
3876 goto out;
3877 status = decode_lock(&xdr, res);
3878out:
3879 return status;
3880}
3881
3882/*
3883 * Decode LOCKT response
3884 */
3885static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res)
3886{
3887 struct xdr_stream xdr;
3888 struct compound_hdr hdr;
3889 int status;
3890
3891 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3892 status = decode_compound_hdr(&xdr, &hdr);
3893 if (status)
3894 goto out;
3895 status = decode_putfh(&xdr);
3896 if (status)
3897 goto out;
3898 status = decode_lockt(&xdr, res);
3899out:
3900 return status;
3901}
3902
3903/*
3904 * Decode LOCKU response
3905 */
3906static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res)
3907{
3908 struct xdr_stream xdr;
3909 struct compound_hdr hdr;
3910 int status;
3911
3912 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3913 status = decode_compound_hdr(&xdr, &hdr);
3914 if (status)
3915 goto out;
3916 status = decode_putfh(&xdr);
3917 if (status)
3918 goto out;
3919 status = decode_locku(&xdr, res);
3920out:
3921 return status;
3922}
3923
3924/*
3925 * Decode READLINK response
3926 */
3927static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, uint32_t *p, void *res)
3928{
3929 struct xdr_stream xdr;
3930 struct compound_hdr hdr;
3931 int status;
3932
3933 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3934 status = decode_compound_hdr(&xdr, &hdr);
3935 if (status)
3936 goto out;
3937 status = decode_putfh(&xdr);
3938 if (status)
3939 goto out;
3940 status = decode_readlink(&xdr, rqstp);
3941out:
3942 return status;
3943}
3944
3945/*
3946 * Decode READDIR response
3947 */
3948static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_readdir_res *res)
3949{
3950 struct xdr_stream xdr;
3951 struct compound_hdr hdr;
3952 int status;
3953
3954 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3955 status = decode_compound_hdr(&xdr, &hdr);
3956 if (status)
3957 goto out;
3958 status = decode_putfh(&xdr);
3959 if (status)
3960 goto out;
3961 status = decode_readdir(&xdr, rqstp, res);
3962out:
3963 return status;
3964}
3965
3966/*
3967 * Decode Read response
3968 */
3969static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_readres *res)
3970{
3971 struct xdr_stream xdr;
3972 struct compound_hdr hdr;
3973 int status;
3974
3975 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3976 status = decode_compound_hdr(&xdr, &hdr);
3977 if (status)
3978 goto out;
3979 status = decode_putfh(&xdr);
3980 if (status)
3981 goto out;
3982 status = decode_read(&xdr, rqstp, res);
3983 if (!status)
3984 status = res->count;
3985out:
3986 return status;
3987}
3988
3989/*
3990 * Decode WRITE response
3991 */
3992static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res)
3993{
3994 struct xdr_stream xdr;
3995 struct compound_hdr hdr;
3996 int status;
3997
3998 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3999 status = decode_compound_hdr(&xdr, &hdr);
4000 if (status)
4001 goto out;
4002 status = decode_putfh(&xdr);
4003 if (status)
4004 goto out;
4005 status = decode_write(&xdr, res);
4f9838c7
TM		 4006 if (status)
4007 goto out;
4008 decode_getfattr(&xdr, res->fattr, res->server);
1da177e4
LT		 4009 if (!status)
4010 status = res->count;
4011out:
4012 return status;
4013}
4014
4015/*
4016 * Decode COMMIT response
4017 */
4018static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res)
4019{
4020 struct xdr_stream xdr;
4021 struct compound_hdr hdr;
4022 int status;
4023
4024 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4025 status = decode_compound_hdr(&xdr, &hdr);
4026 if (status)
4027 goto out;
4028 status = decode_putfh(&xdr);
4029 if (status)
4030 goto out;
4031 status = decode_commit(&xdr, res);
4f9838c7
TM		 4032 if (status)
4033 goto out;
4034 decode_getfattr(&xdr, res->fattr, res->server);
1da177e4
LT		 4035out:
4036 return status;
4037}
4038
4039/*
4040 * FSINFO request
4041 */
4042static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo)
4043{
4044 struct xdr_stream xdr;
4045 struct compound_hdr hdr;
4046 int status;
4047
4048 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4049 status = decode_compound_hdr(&xdr, &hdr);
4050 if (!status)
4051 status = decode_putfh(&xdr);
4052 if (!status)
4053 status = decode_fsinfo(&xdr, fsinfo);
4054 if (!status)
4055 status = -nfs_stat_to_errno(hdr.status);
4056 return status;
4057}
4058
4059/*
4060 * PATHCONF request
4061 */
4062static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, uint32_t *p, struct nfs_pathconf *pathconf)
4063{
4064 struct xdr_stream xdr;
4065 struct compound_hdr hdr;
4066 int status;
4067
4068 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4069 status = decode_compound_hdr(&xdr, &hdr);
4070 if (!status)
4071 status = decode_putfh(&xdr);
4072 if (!status)
4073 status = decode_pathconf(&xdr, pathconf);
4074 return status;
4075}
4076
4077/*
4078 * STATFS request
4079 */
4080static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, uint32_t *p, struct nfs_fsstat *fsstat)
4081{
4082 struct xdr_stream xdr;
4083 struct compound_hdr hdr;
4084 int status;
4085
4086 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4087 status = decode_compound_hdr(&xdr, &hdr);
4088 if (!status)
4089 status = decode_putfh(&xdr);
4090 if (!status)
4091 status = decode_statfs(&xdr, fsstat);
4092 return status;
4093}
4094
4095/*
4096 * GETATTR_BITMAP request
4097 */
4098static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, uint32_t *p, struct nfs4_server_caps_res *res)
4099{
4100 struct xdr_stream xdr;
4101 struct compound_hdr hdr;
4102 int status;
4103
4104 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4105 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
4106 goto out;
4107 if ((status = decode_putfh(&xdr)) != 0)
4108 goto out;
4109 status = decode_server_caps(&xdr, res);
4110out:
4111 return status;
4112}
4113
4114/*
4115 * Decode RENEW response
4116 */
4117static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, uint32_t *p, void *dummy)
4118{
4119 struct xdr_stream xdr;
4120 struct compound_hdr hdr;
4121 int status;
4122
4123 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4124 status = decode_compound_hdr(&xdr, &hdr);
4125 if (!status)
4126 status = decode_renew(&xdr);
4127 return status;
4128}
4129
4130/*
4131 * a SETCLIENTID request
4132 */
4133static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, uint32_t *p,
4134 struct nfs4_client *clp)
4135{
4136 struct xdr_stream xdr;
4137 struct compound_hdr hdr;
4138 int status;
4139
4140 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4141 status = decode_compound_hdr(&xdr, &hdr);
4142 if (!status)
4143 status = decode_setclientid(&xdr, clp);
4144 if (!status)
4145 status = -nfs_stat_to_errno(hdr.status);
4146 return status;
4147}
4148
4149/*
4150 * a SETCLIENTID_CONFIRM request
4151 */
4152static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo)
4153{
4154 struct xdr_stream xdr;
4155 struct compound_hdr hdr;
4156 int status;
4157
4158 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4159 status = decode_compound_hdr(&xdr, &hdr);
4160 if (!status)
4161 status = decode_setclientid_confirm(&xdr);
4162 if (!status)
4163 status = decode_putrootfh(&xdr);
4164 if (!status)
4165 status = decode_fsinfo(&xdr, fsinfo);
4166 if (!status)
4167 status = -nfs_stat_to_errno(hdr.status);
4168 return status;
4169}
4170
4171/*
4172 * DELEGRETURN request
4173 */
4174static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, void *dummy)
4175{
4176 struct xdr_stream xdr;
4177 struct compound_hdr hdr;
4178 int status;
4179
4180 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4181 status = decode_compound_hdr(&xdr, &hdr);
4182 if (status == 0) {
4183 status = decode_putfh(&xdr);
4184 if (status == 0)
4185 status = decode_delegreturn(&xdr);
4186 }
4187 return status;
4188}
4189
4190uint32_t *nfs4_decode_dirent(uint32_t *p, struct nfs_entry *entry, int plus)
4191{
4192 uint32_t bitmap[2] = {0};
4193 uint32_t len;
4194
4195 if (!*p++) {
4196 if (!*p)
4197 return ERR_PTR(-EAGAIN);
4198 entry->eof = 1;
4199 return ERR_PTR(-EBADCOOKIE);
4200 }
4201
4202 entry->prev_cookie = entry->cookie;
4203 p = xdr_decode_hyper(p, &entry->cookie);
4204 entry->len = ntohl(*p++);
4205 entry->name = (const char *) p;
4206 p += XDR_QUADLEN(entry->len);
4207
4208 /*
4209 * In case the server doesn't return an inode number,
4210 * we fake one here. (We don't use inode number 0,
4211 * since glibc seems to choke on it...)
4212 */
4213 entry->ino = 1;
4214
4215 len = ntohl(*p++); /* bitmap length */
4216 if (len-- > 0) {
4217 bitmap[0] = ntohl(*p++);
4218 if (len-- > 0) {
4219 bitmap[1] = ntohl(*p++);
4220 p += len;
4221 }
4222 }
4223 len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */
4224 if (len > 0) {
97d312d0
MN		 4225 if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) {
4226 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
4227 /* Ignore the return value of rdattr_error for now */
4228 p++;
4229 len--;
4230 }
1da177e4
LT		 4231 if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID)
4232 xdr_decode_hyper(p, &entry->ino);
4233 else if (bitmap[0] == FATTR4_WORD0_FILEID)
4234 xdr_decode_hyper(p, &entry->ino);
4235 p += len;
4236 }
4237
4238 entry->eof = !p[0] && p[1];
4239 return p;
4240}
4241
4242/*
4243 * We need to translate between nfs status return values and
4244 * the local errno values which may not be the same.
4245 */
4246static struct {
4247 int stat;
4248 int errno;
4249} nfs_errtbl[] = {
4250 { NFS4_OK, 0 },
4251 { NFS4ERR_PERM, EPERM },
4252 { NFS4ERR_NOENT, ENOENT },
4253 { NFS4ERR_IO, errno_NFSERR_IO },
4254 { NFS4ERR_NXIO, ENXIO },
4255 { NFS4ERR_ACCESS, EACCES },
4256 { NFS4ERR_EXIST, EEXIST },
4257 { NFS4ERR_XDEV, EXDEV },
4258 { NFS4ERR_NOTDIR, ENOTDIR },
4259 { NFS4ERR_ISDIR, EISDIR },
4260 { NFS4ERR_INVAL, EINVAL },
4261 { NFS4ERR_FBIG, EFBIG },
4262 { NFS4ERR_NOSPC, ENOSPC },
4263 { NFS4ERR_ROFS, EROFS },
4264 { NFS4ERR_MLINK, EMLINK },
4265 { NFS4ERR_NAMETOOLONG, ENAMETOOLONG },
4266 { NFS4ERR_NOTEMPTY, ENOTEMPTY },
4267 { NFS4ERR_DQUOT, EDQUOT },
4268 { NFS4ERR_STALE, ESTALE },
4269 { NFS4ERR_BADHANDLE, EBADHANDLE },
6ebf3656
MN		 4270 { NFS4ERR_BADOWNER, EINVAL },
4271 { NFS4ERR_BADNAME, EINVAL },
1da177e4
LT		 4272 { NFS4ERR_BAD_COOKIE, EBADCOOKIE },
4273 { NFS4ERR_NOTSUPP, ENOTSUPP },
4274 { NFS4ERR_TOOSMALL, ETOOSMALL },
4275 { NFS4ERR_SERVERFAULT, ESERVERFAULT },
4276 { NFS4ERR_BADTYPE, EBADTYPE },
4277 { NFS4ERR_LOCKED, EAGAIN },
4278 { NFS4ERR_RESOURCE, EREMOTEIO },
4279 { NFS4ERR_SYMLINK, ELOOP },
4280 { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP },
4281 { NFS4ERR_DEADLOCK, EDEADLK },
4282 { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs
4283 * to be handled by a
4284 * middle-layer.
4285 */
4286 { -1, EIO }
4287};
4288
4289/*
4290 * Convert an NFS error code to a local one.
4291 * This one is used jointly by NFSv2 and NFSv3.
4292 */
4293static int
4294nfs_stat_to_errno(int stat)
4295{
4296 int i;
4297 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
4298 if (nfs_errtbl[i].stat == stat)
4299 return nfs_errtbl[i].errno;
4300 }
4301 if (stat <= 10000 || stat > 10100) {
4302 /* The server is looney tunes. */
4303 return ESERVERFAULT;
4304 }
4305 /* If we cannot translate the error, the recovery routines should
4306 * handle it.
4307 * Note: remaining NFSv4 error codes have values > 10000, so should
4308 * not conflict with native Linux error codes.
4309 */
4310 return stat;
4311}
4312
4313#ifndef MAX
4314# define MAX(a, b) (((a) > (b))? (a) : (b))
4315#endif
4316
4317#define PROC(proc, argtype, restype) \
4318[NFSPROC4_CLNT_##proc] = { \
4319 .p_proc = NFSPROC4_COMPOUND, \
4320 .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \
4321 .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \
4322 .p_bufsiz = MAX(NFS4_##argtype##_sz,NFS4_##restype##_sz) << 2, \
4323 }
4324
4325struct rpc_procinfo nfs4_procedures[] = {
4326 PROC(READ, enc_read, dec_read),
4327 PROC(WRITE, enc_write, dec_write),
4328 PROC(COMMIT, enc_commit, dec_commit),
4329 PROC(OPEN, enc_open, dec_open),
4330 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
4331 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
4332 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
4333 PROC(CLOSE, enc_close, dec_close),
4334 PROC(SETATTR, enc_setattr, dec_setattr),
4335 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
4336 PROC(RENEW, enc_renew, dec_renew),
4337 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
4338 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
4339 PROC(LOCK, enc_lock, dec_lock),
4340 PROC(LOCKT, enc_lockt, dec_lockt),
4341 PROC(LOCKU, enc_locku, dec_locku),
4342 PROC(ACCESS, enc_access, dec_access),
4343 PROC(GETATTR, enc_getattr, dec_getattr),
4344 PROC(LOOKUP, enc_lookup, dec_lookup),
4345 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
4346 PROC(REMOVE, enc_remove, dec_remove),
4347 PROC(RENAME, enc_rename, dec_rename),
4348 PROC(LINK, enc_link, dec_link),
4349 PROC(SYMLINK, enc_symlink, dec_symlink),
4350 PROC(CREATE, enc_create, dec_create),
4351 PROC(PATHCONF, enc_pathconf, dec_pathconf),
4352 PROC(STATFS, enc_statfs, dec_statfs),
4353 PROC(READLINK, enc_readlink, dec_readlink),
4354 PROC(READDIR, enc_readdir, dec_readdir),
4355 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
4356 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
029d105e 4357 PROC(GETACL, enc_getacl, dec_getacl),
23ec6965 4358 PROC(SETACL, enc_setacl, dec_setacl),
1da177e4
LT		 4359};
4360
4361struct rpc_version nfs_version4 = {
4362 .number = 4,
4363 .nrprocs = sizeof(nfs4_procedures)/sizeof(nfs4_procedures[0]),
4364 .procs = nfs4_procedures
4365};
4366
4367/*
4368 * Local variables:
4369 * c-basic-offset: 8
4370 * End:
4371 */
kernel source for telekom puls (alcatel/mediatek)