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NFSv4: Add post-op attributes to nfs4_proc_rename()
[deliverable/linux.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 + \
162 op_encode_hdr_maxsz + 8)
163#define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
164 decode_putfh_maxsz + \
165 op_decode_hdr_maxsz + 4)
166#define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
167 encode_putfh_maxsz + \
168 op_encode_hdr_maxsz + 3)
169#define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
170 decode_putfh_maxsz + \
171 op_decode_hdr_maxsz + 2)
172#define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
173 encode_putfh_maxsz + \
174 op_encode_hdr_maxsz + \
175 13 + 3 + 2 + 64 + \
176 encode_getattr_maxsz + \
177 encode_getfh_maxsz)
178#define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
179 decode_putfh_maxsz + \
180 op_decode_hdr_maxsz + 4 + 5 + 2 + 3 + \
181 decode_getattr_maxsz + \
182 decode_getfh_maxsz)
183#define NFS4_enc_open_confirm_sz \
184 (compound_encode_hdr_maxsz + \
185 encode_putfh_maxsz + \
186 op_encode_hdr_maxsz + 5)
187#define NFS4_dec_open_confirm_sz (compound_decode_hdr_maxsz + \
188 decode_putfh_maxsz + \
189 op_decode_hdr_maxsz + 4)
190#define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
191 encode_putfh_maxsz + \
192 op_encode_hdr_maxsz + \
193 11)
194#define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
195 decode_putfh_maxsz + \
196 op_decode_hdr_maxsz + \
197 4 + 5 + 2 + 3)
198#define NFS4_enc_open_downgrade_sz \
199 (compound_encode_hdr_maxsz + \
200 encode_putfh_maxsz + \
516a6af6
TM		 201 op_encode_hdr_maxsz + 7 + \
202 encode_getattr_maxsz)
1da177e4
LT		 203#define NFS4_dec_open_downgrade_sz \
204 (compound_decode_hdr_maxsz + \
205 decode_putfh_maxsz + \
516a6af6
TM		 206 op_decode_hdr_maxsz + 4 + \
207 decode_getattr_maxsz)
1da177e4
LT		 208#define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
209 encode_putfh_maxsz + \
516a6af6
TM		 210 op_encode_hdr_maxsz + 5 + \
211 encode_getattr_maxsz)
1da177e4
LT		 212#define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
213 decode_putfh_maxsz + \
516a6af6
TM		 214 op_decode_hdr_maxsz + 4 + \
215 decode_getattr_maxsz)
1da177e4
LT		 216#define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
217 encode_putfh_maxsz + \
218 op_encode_hdr_maxsz + 4 + \
96928206 219 nfs4_fattr_maxsz + \
1da177e4
LT		 220 encode_getattr_maxsz)
221#define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
222 decode_putfh_maxsz + \
223 op_decode_hdr_maxsz + 3)
224#define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
225 encode_putfh_maxsz + \
226 encode_fsinfo_maxsz)
227#define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
228 decode_putfh_maxsz + \
229 decode_fsinfo_maxsz)
230#define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
231 encode_renew_maxsz)
232#define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
233 decode_renew_maxsz)
234#define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
235 encode_setclientid_maxsz)
236#define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
237 decode_setclientid_maxsz)
238#define NFS4_enc_setclientid_confirm_sz \
239 (compound_encode_hdr_maxsz + \
240 encode_setclientid_confirm_maxsz + \
241 encode_putrootfh_maxsz + \
242 encode_fsinfo_maxsz)
243#define NFS4_dec_setclientid_confirm_sz \
244 (compound_decode_hdr_maxsz + \
245 decode_setclientid_confirm_maxsz + \
246 decode_putrootfh_maxsz + \
247 decode_fsinfo_maxsz)
248#define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
249 encode_putfh_maxsz + \
250 encode_getattr_maxsz + \
251 op_encode_hdr_maxsz + \
252 1 + 1 + 2 + 2 + \
253 1 + 4 + 1 + 2 + \
254 owner_id_maxsz)
255#define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
256 decode_putfh_maxsz + \
257 decode_getattr_maxsz + \
258 op_decode_hdr_maxsz + \
259 2 + 2 + 1 + 2 + \
260 owner_id_maxsz)
261#define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
262 encode_putfh_maxsz + \
263 encode_getattr_maxsz + \
264 op_encode_hdr_maxsz + \
265 1 + 2 + 2 + 2 + \
266 owner_id_maxsz)
267#define NFS4_dec_lockt_sz (NFS4_dec_lock_sz)
268#define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
269 encode_putfh_maxsz + \
270 encode_getattr_maxsz + \
271 op_encode_hdr_maxsz + \
272 1 + 1 + 4 + 2 + 2)
273#define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
274 decode_putfh_maxsz + \
275 decode_getattr_maxsz + \
276 op_decode_hdr_maxsz + 4)
277#define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
278 encode_putfh_maxsz + \
279 op_encode_hdr_maxsz + 1)
280#define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
281 decode_putfh_maxsz + \
282 op_decode_hdr_maxsz + 2)
283#define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
284 encode_putfh_maxsz + \
285 encode_getattr_maxsz)
286#define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
287 decode_putfh_maxsz + \
288 decode_getattr_maxsz)
289#define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
290 encode_putfh_maxsz + \
291 encode_lookup_maxsz + \
292 encode_getattr_maxsz + \
293 encode_getfh_maxsz)
294#define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
295 decode_putfh_maxsz + \
296 op_decode_hdr_maxsz + \
297 decode_getattr_maxsz + \
298 decode_getfh_maxsz)
299#define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
300 encode_putrootfh_maxsz + \
301 encode_getattr_maxsz + \
302 encode_getfh_maxsz)
303#define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
304 decode_putrootfh_maxsz + \
305 decode_getattr_maxsz + \
306 decode_getfh_maxsz)
307#define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
308 encode_putfh_maxsz + \
309 encode_remove_maxsz)
310#define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
311 decode_putfh_maxsz + \
312 op_decode_hdr_maxsz + 5)
313#define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
314 encode_putfh_maxsz + \
315 encode_savefh_maxsz + \
316 encode_putfh_maxsz + \
6caf2c82
TM		 317 encode_rename_maxsz + \
318 encode_getattr_maxsz + \
319 encode_restorefh_maxsz + \
320 encode_getattr_maxsz)
1da177e4
LT		 321#define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
322 decode_putfh_maxsz + \
323 decode_savefh_maxsz + \
324 decode_putfh_maxsz + \
6caf2c82
TM		 325 decode_rename_maxsz + \
326 decode_getattr_maxsz + \
327 decode_restorefh_maxsz + \
328 decode_getattr_maxsz)
1da177e4
LT		 329#define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
330 encode_putfh_maxsz + \
331 encode_savefh_maxsz + \
332 encode_putfh_maxsz + \
91ba2eee
TM		 333 encode_link_maxsz + \
334 decode_getattr_maxsz + \
335 encode_restorefh_maxsz + \
336 decode_getattr_maxsz)
1da177e4
LT		 337#define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
338 decode_putfh_maxsz + \
339 decode_savefh_maxsz + \
340 decode_putfh_maxsz + \
91ba2eee
TM		 341 decode_link_maxsz + \
342 decode_getattr_maxsz + \
343 decode_restorefh_maxsz + \
344 decode_getattr_maxsz)
1da177e4
LT		 345#define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
346 encode_putfh_maxsz + \
347 encode_symlink_maxsz + \
348 encode_getattr_maxsz + \
349 encode_getfh_maxsz)
350#define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
351 decode_putfh_maxsz + \
352 decode_symlink_maxsz + \
353 decode_getattr_maxsz + \
354 decode_getfh_maxsz)
355#define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
356 encode_putfh_maxsz + \
56ae19f3 357 encode_savefh_maxsz + \
1da177e4 358 encode_create_maxsz + \
56ae19f3 359 encode_getfh_maxsz + \
1da177e4 360 encode_getattr_maxsz + \
56ae19f3
TM		 361 encode_restorefh_maxsz + \
362 encode_getattr_maxsz)
1da177e4
LT		 363#define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
364 decode_putfh_maxsz + \
56ae19f3 365 decode_savefh_maxsz + \
1da177e4 366 decode_create_maxsz + \
56ae19f3 367 decode_getfh_maxsz + \
1da177e4 368 decode_getattr_maxsz + \
56ae19f3
TM		 369 decode_restorefh_maxsz + \
370 decode_getattr_maxsz)
1da177e4
LT		 371#define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
372 encode_putfh_maxsz + \
373 encode_getattr_maxsz)
374#define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
375 decode_putfh_maxsz + \
376 decode_getattr_maxsz)
377#define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
378 encode_putfh_maxsz + \
379 encode_getattr_maxsz)
380#define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
381 decode_putfh_maxsz + \
382 op_decode_hdr_maxsz + 12)
383#define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
384 encode_getattr_maxsz)
385#define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
386 decode_getattr_maxsz)
387#define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
388 encode_putfh_maxsz + \
389 encode_delegreturn_maxsz)
390#define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
391 decode_delegreturn_maxsz)
029d105e
BF		 392#define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
393 encode_putfh_maxsz + \
394 encode_getattr_maxsz)
395#define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
396 decode_putfh_maxsz + \
397 op_decode_hdr_maxsz + \
398 nfs4_fattr_bitmap_maxsz + 1)
23ec6965
BF		 399#define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
400 encode_putfh_maxsz + \
401 op_encode_hdr_maxsz + 4 + \
402 nfs4_fattr_bitmap_maxsz + 1)
403#define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
404 decode_putfh_maxsz + \
405 op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
1da177e4
LT		 406
407static struct {
408 unsigned int mode;
409 unsigned int nfs2type;
410} nfs_type2fmt[] = {
411 { 0, NFNON },
412 { S_IFREG, NFREG },
413 { S_IFDIR, NFDIR },
414 { S_IFBLK, NFBLK },
415 { S_IFCHR, NFCHR },
416 { S_IFLNK, NFLNK },
417 { S_IFSOCK, NFSOCK },
418 { S_IFIFO, NFFIFO },
419 { 0, NFNON },
420 { 0, NFNON },
421};
422
423struct compound_hdr {
424 int32_t status;
425 uint32_t nops;
426 uint32_t taglen;
427 char * tag;
428};
429
430/*
431 * START OF "GENERIC" ENCODE ROUTINES.
432 * These may look a little ugly since they are imported from a "generic"
433 * set of XDR encode/decode routines which are intended to be shared by
434 * all of our NFSv4 implementations (OpenBSD, MacOS X...).
435 *
436 * If the pain of reading these is too great, it should be a straightforward
437 * task to translate them into Linux-specific versions which are more
438 * consistent with the style used in NFSv2/v3...
439 */
440#define WRITE32(n) *p++ = htonl(n)
441#define WRITE64(n) do { \
442 *p++ = htonl((uint32_t)((n) >> 32)); \
443 *p++ = htonl((uint32_t)(n)); \
444} while (0)
445#define WRITEMEM(ptr,nbytes) do { \
446 p = xdr_encode_opaque_fixed(p, ptr, nbytes); \
447} while (0)
448
449#define RESERVE_SPACE(nbytes) do { \
450 p = xdr_reserve_space(xdr, nbytes); \
451 if (!p) printk("RESERVE_SPACE(%d) failed in function %s\n", (int) (nbytes), __FUNCTION__); \
452 BUG_ON(!p); \
453} while (0)
454
455static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
456{
457 uint32_t *p;
458
459 p = xdr_reserve_space(xdr, 4 + len);
460 BUG_ON(p == NULL);
461 xdr_encode_opaque(p, str, len);
462}
463
464static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
465{
466 uint32_t *p;
467
468 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag);
469 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN);
470 RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2));
471 WRITE32(hdr->taglen);
472 WRITEMEM(hdr->tag, hdr->taglen);
473 WRITE32(NFS4_MINOR_VERSION);
474 WRITE32(hdr->nops);
475 return 0;
476}
477
478static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
479{
480 uint32_t *p;
481
482 p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE);
483 BUG_ON(p == NULL);
484 xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE);
485}
486
487static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
488{
489 char owner_name[IDMAP_NAMESZ];
490 char owner_group[IDMAP_NAMESZ];
491 int owner_namelen = 0;
492 int owner_grouplen = 0;
493 uint32_t *p;
494 uint32_t *q;
495 int len;
496 uint32_t bmval0 = 0;
497 uint32_t bmval1 = 0;
498 int status;
499
500 /*
501 * We reserve enough space to write the entire attribute buffer at once.
502 * In the worst-case, this would be
503 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
504 * = 36 bytes, plus any contribution from variable-length fields
23ec6965 505 * such as owner/group.
1da177e4
LT		 506 */
507 len = 16;
508
509 /* Sigh */
510 if (iap->ia_valid & ATTR_SIZE)
511 len += 8;
512 if (iap->ia_valid & ATTR_MODE)
513 len += 4;
514 if (iap->ia_valid & ATTR_UID) {
515 owner_namelen = nfs_map_uid_to_name(server->nfs4_state, iap->ia_uid, owner_name);
516 if (owner_namelen < 0) {
517 printk(KERN_WARNING "nfs: couldn't resolve uid %d to string\n",
518 iap->ia_uid);
519 /* XXX */
520 strcpy(owner_name, "nobody");
521 owner_namelen = sizeof("nobody") - 1;
522 /* goto out; */
523 }
524 len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
525 }
526 if (iap->ia_valid & ATTR_GID) {
527 owner_grouplen = nfs_map_gid_to_group(server->nfs4_state, iap->ia_gid, owner_group);
528 if (owner_grouplen < 0) {
529 printk(KERN_WARNING "nfs4: couldn't resolve gid %d to string\n",
530 iap->ia_gid);
531 strcpy(owner_group, "nobody");
532 owner_grouplen = sizeof("nobody") - 1;
533 /* goto out; */
534 }
535 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
536 }
537 if (iap->ia_valid & ATTR_ATIME_SET)
538 len += 16;
539 else if (iap->ia_valid & ATTR_ATIME)
540 len += 4;
541 if (iap->ia_valid & ATTR_MTIME_SET)
542 len += 16;
543 else if (iap->ia_valid & ATTR_MTIME)
544 len += 4;
545 RESERVE_SPACE(len);
546
547 /*
548 * We write the bitmap length now, but leave the bitmap and the attribute
549 * buffer length to be backfilled at the end of this routine.
550 */
551 WRITE32(2);
552 q = p;
553 p += 3;
554
555 if (iap->ia_valid & ATTR_SIZE) {
556 bmval0 |= FATTR4_WORD0_SIZE;
557 WRITE64(iap->ia_size);
558 }
559 if (iap->ia_valid & ATTR_MODE) {
560 bmval1 |= FATTR4_WORD1_MODE;
561 WRITE32(iap->ia_mode);
562 }
563 if (iap->ia_valid & ATTR_UID) {
564 bmval1 |= FATTR4_WORD1_OWNER;
565 WRITE32(owner_namelen);
566 WRITEMEM(owner_name, owner_namelen);
567 }
568 if (iap->ia_valid & ATTR_GID) {
569 bmval1 |= FATTR4_WORD1_OWNER_GROUP;
570 WRITE32(owner_grouplen);
571 WRITEMEM(owner_group, owner_grouplen);
572 }
573 if (iap->ia_valid & ATTR_ATIME_SET) {
574 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
575 WRITE32(NFS4_SET_TO_CLIENT_TIME);
576 WRITE32(0);
577 WRITE32(iap->ia_mtime.tv_sec);
578 WRITE32(iap->ia_mtime.tv_nsec);
579 }
580 else if (iap->ia_valid & ATTR_ATIME) {
581 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
582 WRITE32(NFS4_SET_TO_SERVER_TIME);
583 }
584 if (iap->ia_valid & ATTR_MTIME_SET) {
585 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
586 WRITE32(NFS4_SET_TO_CLIENT_TIME);
587 WRITE32(0);
588 WRITE32(iap->ia_mtime.tv_sec);
589 WRITE32(iap->ia_mtime.tv_nsec);
590 }
591 else if (iap->ia_valid & ATTR_MTIME) {
592 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
593 WRITE32(NFS4_SET_TO_SERVER_TIME);
594 }
595
596 /*
597 * Now we backfill the bitmap and the attribute buffer length.
598 */
599 if (len != ((char *)p - (char *)q) + 4) {
600 printk ("encode_attr: Attr length calculation error! %u != %Zu\n",
601 len, ((char *)p - (char *)q) + 4);
602 BUG();
603 }
604 len = (char *)p - (char *)q - 12;
605 *q++ = htonl(bmval0);
606 *q++ = htonl(bmval1);
607 *q++ = htonl(len);
608
609 status = 0;
610/* out: */
611 return status;
612}
613
614static int encode_access(struct xdr_stream *xdr, u32 access)
615{
616 uint32_t *p;
617
618 RESERVE_SPACE(8);
619 WRITE32(OP_ACCESS);
620 WRITE32(access);
621
622 return 0;
623}
624
625static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg)
626{
627 uint32_t *p;
628
9512135d 629 RESERVE_SPACE(8+sizeof(arg->stateid->data));
1da177e4 630 WRITE32(OP_CLOSE);
cee54fc9 631 WRITE32(arg->seqid->sequence->counter);
9512135d 632 WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
1da177e4
LT		 633
634 return 0;
635}
636
637static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args)
638{
639 uint32_t *p;
640
641 RESERVE_SPACE(16);
642 WRITE32(OP_COMMIT);
643 WRITE64(args->offset);
644 WRITE32(args->count);
645
646 return 0;
647}
648
649static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create)
650{
651 uint32_t *p;
652
653 RESERVE_SPACE(8);
654 WRITE32(OP_CREATE);
655 WRITE32(create->ftype);
656
657 switch (create->ftype) {
658 case NF4LNK:
659 RESERVE_SPACE(4 + create->u.symlink->len);
660 WRITE32(create->u.symlink->len);
661 WRITEMEM(create->u.symlink->name, create->u.symlink->len);
662 break;
663
664 case NF4BLK: case NF4CHR:
665 RESERVE_SPACE(8);
666 WRITE32(create->u.device.specdata1);
667 WRITE32(create->u.device.specdata2);
668 break;
669
670 default:
671 break;
672 }
673
674 RESERVE_SPACE(4 + create->name->len);
675 WRITE32(create->name->len);
676 WRITEMEM(create->name->name, create->name->len);
677
678 return encode_attrs(xdr, create->attrs, create->server);
679}
680
681static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap)
682{
683 uint32_t *p;
684
685 RESERVE_SPACE(12);
686 WRITE32(OP_GETATTR);
687 WRITE32(1);
688 WRITE32(bitmap);
689 return 0;
690}
691
692static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1)
693{
694 uint32_t *p;
695
696 RESERVE_SPACE(16);
697 WRITE32(OP_GETATTR);
698 WRITE32(2);
699 WRITE32(bm0);
700 WRITE32(bm1);
701 return 0;
702}
703
704static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask)
705{
1da177e4
LT		 706 return encode_getattr_two(xdr,
707 bitmask[0] & nfs4_fattr_bitmap[0],
708 bitmask[1] & nfs4_fattr_bitmap[1]);
709}
710
711static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask)
712{
1da177e4
LT		 713 return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0],
714 bitmask[1] & nfs4_fsinfo_bitmap[1]);
715}
716
717static int encode_getfh(struct xdr_stream *xdr)
718{
719 uint32_t *p;
720
721 RESERVE_SPACE(4);
722 WRITE32(OP_GETFH);
723
724 return 0;
725}
726
727static int encode_link(struct xdr_stream *xdr, const struct qstr *name)
728{
729 uint32_t *p;
730
731 RESERVE_SPACE(8 + name->len);
732 WRITE32(OP_LINK);
733 WRITE32(name->len);
734 WRITEMEM(name->name, name->len);
735
736 return 0;
737}
738
739/*
740 * opcode,type,reclaim,offset,length,new_lock_owner = 32
741 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
742 */
743static int encode_lock(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
744{
745 uint32_t *p;
746 struct nfs_lock_opargs *opargs = arg->u.lock;
747
748 RESERVE_SPACE(32);
749 WRITE32(OP_LOCK);
750 WRITE32(arg->type);
751 WRITE32(opargs->reclaim);
752 WRITE64(arg->offset);
753 WRITE64(arg->length);
754 WRITE32(opargs->new_lock_owner);
755 if (opargs->new_lock_owner){
1da177e4 756 RESERVE_SPACE(40);
06735b34
TM		 757 WRITE32(opargs->open_seqid->sequence->counter);
758 WRITEMEM(opargs->open_stateid->data, sizeof(opargs->open_stateid->data));
759 WRITE32(opargs->lock_seqid->sequence->counter);
760 WRITE64(opargs->lock_owner.clientid);
1da177e4 761 WRITE32(4);
06735b34 762 WRITE32(opargs->lock_owner.id);
1da177e4
LT		 763 }
764 else {
1da177e4 765 RESERVE_SPACE(20);
06735b34
TM		 766 WRITEMEM(opargs->lock_stateid->data, sizeof(opargs->lock_stateid->data));
767 WRITE32(opargs->lock_seqid->sequence->counter);
1da177e4
LT		 768 }
769
770 return 0;
771}
772
773static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
774{
775 uint32_t *p;
776 struct nfs_lowner *opargs = arg->u.lockt;
777
778 RESERVE_SPACE(40);
779 WRITE32(OP_LOCKT);
780 WRITE32(arg->type);
781 WRITE64(arg->offset);
782 WRITE64(arg->length);
783 WRITE64(opargs->clientid);
784 WRITE32(4);
785 WRITE32(opargs->id);
786
787 return 0;
788}
789
790static int encode_locku(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
791{
792 uint32_t *p;
793 struct nfs_locku_opargs *opargs = arg->u.locku;
794
795 RESERVE_SPACE(44);
796 WRITE32(OP_LOCKU);
797 WRITE32(arg->type);
cee54fc9 798 WRITE32(opargs->seqid->sequence->counter);
faf5f49c 799 WRITEMEM(opargs->stateid->data, sizeof(opargs->stateid->data));
1da177e4
LT		 800 WRITE64(arg->offset);
801 WRITE64(arg->length);
802
803 return 0;
804}
805
806static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name)
807{
808 int len = name->len;
809 uint32_t *p;
810
811 RESERVE_SPACE(8 + len);
812 WRITE32(OP_LOOKUP);
813 WRITE32(len);
814 WRITEMEM(name->name, len);
815
816 return 0;
817}
818
819static void encode_share_access(struct xdr_stream *xdr, int open_flags)
820{
821 uint32_t *p;
822
823 RESERVE_SPACE(8);
824 switch (open_flags & (FMODE_READ|FMODE_WRITE)) {
825 case FMODE_READ:
826 WRITE32(NFS4_SHARE_ACCESS_READ);
827 break;
828 case FMODE_WRITE:
829 WRITE32(NFS4_SHARE_ACCESS_WRITE);
830 break;
831 case FMODE_READ|FMODE_WRITE:
832 WRITE32(NFS4_SHARE_ACCESS_BOTH);
833 break;
834 default:
835 BUG();
836 }
837 WRITE32(0); /* for linux, share_deny = 0 always */
838}
839
840static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
841{
842 uint32_t *p;
843 /*
844 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
845 * owner 4 = 32
846 */
847 RESERVE_SPACE(8);
848 WRITE32(OP_OPEN);
cee54fc9 849 WRITE32(arg->seqid->sequence->counter);
1da177e4
LT		 850 encode_share_access(xdr, arg->open_flags);
851 RESERVE_SPACE(16);
852 WRITE64(arg->clientid);
853 WRITE32(4);
854 WRITE32(arg->id);
855}
856
857static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
858{
859 uint32_t *p;
860
861 RESERVE_SPACE(4);
862 switch(arg->open_flags & O_EXCL) {
863 case 0:
864 WRITE32(NFS4_CREATE_UNCHECKED);
865 encode_attrs(xdr, arg->u.attrs, arg->server);
866 break;
867 default:
868 WRITE32(NFS4_CREATE_EXCLUSIVE);
869 encode_nfs4_verifier(xdr, &arg->u.verifier);
870 }
871}
872
873static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
874{
875 uint32_t *p;
876
877 RESERVE_SPACE(4);
878 switch (arg->open_flags & O_CREAT) {
879 case 0:
880 WRITE32(NFS4_OPEN_NOCREATE);
881 break;
882 default:
883 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
884 WRITE32(NFS4_OPEN_CREATE);
885 encode_createmode(xdr, arg);
886 }
887}
888
889static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type)
890{
891 uint32_t *p;
892
893 RESERVE_SPACE(4);
894 switch (delegation_type) {
895 case 0:
896 WRITE32(NFS4_OPEN_DELEGATE_NONE);
897 break;
898 case FMODE_READ:
899 WRITE32(NFS4_OPEN_DELEGATE_READ);
900 break;
901 case FMODE_WRITE|FMODE_READ:
902 WRITE32(NFS4_OPEN_DELEGATE_WRITE);
903 break;
904 default:
905 BUG();
906 }
907}
908
909static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
910{
911 uint32_t *p;
912
913 RESERVE_SPACE(4);
914 WRITE32(NFS4_OPEN_CLAIM_NULL);
915 encode_string(xdr, name->len, name->name);
916}
917
918static inline void encode_claim_previous(struct xdr_stream *xdr, int type)
919{
920 uint32_t *p;
921
922 RESERVE_SPACE(4);
923 WRITE32(NFS4_OPEN_CLAIM_PREVIOUS);
924 encode_delegation_type(xdr, type);
925}
926
927static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
928{
929 uint32_t *p;
930
931 RESERVE_SPACE(4+sizeof(stateid->data));
932 WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
933 WRITEMEM(stateid->data, sizeof(stateid->data));
934 encode_string(xdr, name->len, name->name);
935}
936
937static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg)
938{
939 encode_openhdr(xdr, arg);
940 encode_opentype(xdr, arg);
941 switch (arg->claim) {
942 case NFS4_OPEN_CLAIM_NULL:
943 encode_claim_null(xdr, arg->name);
944 break;
945 case NFS4_OPEN_CLAIM_PREVIOUS:
946 encode_claim_previous(xdr, arg->u.delegation_type);
947 break;
948 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
949 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
950 break;
951 default:
952 BUG();
953 }
954 return 0;
955}
956
957static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg)
958{
959 uint32_t *p;
960
961 RESERVE_SPACE(8+sizeof(arg->stateid.data));
962 WRITE32(OP_OPEN_CONFIRM);
963 WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
cee54fc9 964 WRITE32(arg->seqid->sequence->counter);
1da177e4
LT		 965
966 return 0;
967}
968
969static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg)
970{
971 uint32_t *p;
972
9512135d 973 RESERVE_SPACE(8+sizeof(arg->stateid->data));
1da177e4 974 WRITE32(OP_OPEN_DOWNGRADE);
9512135d 975 WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
cee54fc9 976 WRITE32(arg->seqid->sequence->counter);
1da177e4
LT		 977 encode_share_access(xdr, arg->open_flags);
978 return 0;
979}
980
981static int
982encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh)
983{
984 int len = fh->size;
985 uint32_t *p;
986
987 RESERVE_SPACE(8 + len);
988 WRITE32(OP_PUTFH);
989 WRITE32(len);
990 WRITEMEM(fh->data, len);
991
992 return 0;
993}
994
995static int encode_putrootfh(struct xdr_stream *xdr)
996{
997 uint32_t *p;
998
999 RESERVE_SPACE(4);
1000 WRITE32(OP_PUTROOTFH);
1001
1002 return 0;
1003}
1004
1005static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx)
1006{
1da177e4
LT		 1007 nfs4_stateid stateid;
1008 uint32_t *p;
1009
1010 RESERVE_SPACE(16);
1011 if (ctx->state != NULL) {
1012 nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner);
1013 WRITEMEM(stateid.data, sizeof(stateid.data));
1014 } else
1015 WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data));
1016}
1017
1018static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args)
1019{
1020 uint32_t *p;
1021
1022 RESERVE_SPACE(4);
1023 WRITE32(OP_READ);
1024
1025 encode_stateid(xdr, args->context);
1026
1027 RESERVE_SPACE(12);
1028 WRITE64(args->offset);
1029 WRITE32(args->count);
1030
1031 return 0;
1032}
1033
1034static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req)
1035{
1036 struct rpc_auth *auth = req->rq_task->tk_auth;
97d312d0
MN		 1037 uint32_t attrs[2] = {
1038 FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID,
1039 FATTR4_WORD1_MOUNTED_ON_FILEID,
1040 };
1da177e4
LT		 1041 int replen;
1042 uint32_t *p;
1043
1044 RESERVE_SPACE(32+sizeof(nfs4_verifier));
1045 WRITE32(OP_READDIR);
1046 WRITE64(readdir->cookie);
1047 WRITEMEM(readdir->verifier.data, sizeof(readdir->verifier.data));
1048 WRITE32(readdir->count >> 1); /* We're not doing readdirplus */
1049 WRITE32(readdir->count);
1050 WRITE32(2);
97d312d0
MN		 1051 /* Switch to mounted_on_fileid if the server supports it */
1052 if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)
1053 attrs[0] &= ~FATTR4_WORD0_FILEID;
1054 else
1055 attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
1056 WRITE32(attrs[0] & readdir->bitmask[0]);
1057 WRITE32(attrs[1] & readdir->bitmask[1]);
eadf4598
TM		 1058 dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n",
1059 __FUNCTION__,
1060 (unsigned long long)readdir->cookie,
1061 ((u32 *)readdir->verifier.data)[0],
1062 ((u32 *)readdir->verifier.data)[1],
1063 attrs[0] & readdir->bitmask[0],
1064 attrs[1] & readdir->bitmask[1]);
1da177e4
LT		 1065
1066 /* set up reply kvec
1067 * toplevel_status + taglen + rescount + OP_PUTFH + status
1068 * + OP_READDIR + status + verifer(2) = 9
1069 */
1070 replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2;
1071 xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages,
1072 readdir->pgbase, readdir->count);
eadf4598
TM		 1073 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
1074 __FUNCTION__, replen, readdir->pages,
1075 readdir->pgbase, readdir->count);
1da177e4
LT		 1076
1077 return 0;
1078}
1079
1080static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req)
1081{
1082 struct rpc_auth *auth = req->rq_task->tk_auth;
1083 unsigned int replen;
1084 uint32_t *p;
1085
1086 RESERVE_SPACE(4);
1087 WRITE32(OP_READLINK);
1088
1089 /* set up reply kvec
1090 * toplevel_status + taglen + rescount + OP_PUTFH + status
1091 * + OP_READLINK + status + string length = 8
1092 */
1093 replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2;
1094 xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages,
1095 readlink->pgbase, readlink->pglen);
1096
1097 return 0;
1098}
1099
1100static int encode_remove(struct xdr_stream *xdr, const struct qstr *name)
1101{
1102 uint32_t *p;
1103
1104 RESERVE_SPACE(8 + name->len);
1105 WRITE32(OP_REMOVE);
1106 WRITE32(name->len);
1107 WRITEMEM(name->name, name->len);
1108
1109 return 0;
1110}
1111
1112static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname)
1113{
1114 uint32_t *p;
1115
1116 RESERVE_SPACE(8 + oldname->len);
1117 WRITE32(OP_RENAME);
1118 WRITE32(oldname->len);
1119 WRITEMEM(oldname->name, oldname->len);
1120
1121 RESERVE_SPACE(4 + newname->len);
1122 WRITE32(newname->len);
1123 WRITEMEM(newname->name, newname->len);
1124
1125 return 0;
1126}
1127
1128static int encode_renew(struct xdr_stream *xdr, const struct nfs4_client *client_stateid)
1129{
1130 uint32_t *p;
1131
1132 RESERVE_SPACE(12);
1133 WRITE32(OP_RENEW);
1134 WRITE64(client_stateid->cl_clientid);
1135
1136 return 0;
1137}
1138
56ae19f3
TM		 1139static int
1140encode_restorefh(struct xdr_stream *xdr)
1141{
1142 uint32_t *p;
1143
1144 RESERVE_SPACE(4);
1145 WRITE32(OP_RESTOREFH);
1146
1147 return 0;
1148}
1149
23ec6965
BF		 1150static int
1151encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg)
1152{
1153 uint32_t *p;
1154
1155 RESERVE_SPACE(4+sizeof(zero_stateid.data));
1156 WRITE32(OP_SETATTR);
1157 WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data));
1158 RESERVE_SPACE(2*4);
1159 WRITE32(1);
1160 WRITE32(FATTR4_WORD0_ACL);
1161 if (arg->acl_len % 4)
1162 return -EINVAL;
1163 RESERVE_SPACE(4);
1164 WRITE32(arg->acl_len);
1165 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
1166 return 0;
1167}
1168
1da177e4
LT		 1169static int
1170encode_savefh(struct xdr_stream *xdr)
1171{
1172 uint32_t *p;
1173
1174 RESERVE_SPACE(4);
1175 WRITE32(OP_SAVEFH);
1176
1177 return 0;
1178}
1179
1180static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server)
1181{
1182 int status;
1183 uint32_t *p;
1184
1185 RESERVE_SPACE(4+sizeof(arg->stateid.data));
1186 WRITE32(OP_SETATTR);
1187 WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
1188
1189 if ((status = encode_attrs(xdr, arg->iap, server)))
1190 return status;
1191
1192 return 0;
1193}
1194
1195static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid)
1196{
1197 uint32_t *p;
1198
1199 RESERVE_SPACE(4 + sizeof(setclientid->sc_verifier->data));
1200 WRITE32(OP_SETCLIENTID);
1201 WRITEMEM(setclientid->sc_verifier->data, sizeof(setclientid->sc_verifier->data));
1202
1203 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
1204 RESERVE_SPACE(4);
1205 WRITE32(setclientid->sc_prog);
1206 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1207 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
1208 RESERVE_SPACE(4);
1209 WRITE32(setclientid->sc_cb_ident);
1210
1211 return 0;
1212}
1213
1214static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_client *client_state)
1215{
1216 uint32_t *p;
1217
1218 RESERVE_SPACE(12 + sizeof(client_state->cl_confirm.data));
1219 WRITE32(OP_SETCLIENTID_CONFIRM);
1220 WRITE64(client_state->cl_clientid);
1221 WRITEMEM(client_state->cl_confirm.data, sizeof(client_state->cl_confirm.data));
1222
1223 return 0;
1224}
1225
1226static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args)
1227{
1228 uint32_t *p;
1229
1230 RESERVE_SPACE(4);
1231 WRITE32(OP_WRITE);
1232
1233 encode_stateid(xdr, args->context);
1234
1235 RESERVE_SPACE(16);
1236 WRITE64(args->offset);
1237 WRITE32(args->stable);
1238 WRITE32(args->count);
1239
1240 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
1241
1242 return 0;
1243}
1244
1245static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid)
1246{
1247 uint32_t *p;
1248
1249 RESERVE_SPACE(20);
1250
1251 WRITE32(OP_DELEGRETURN);
1252 WRITEMEM(stateid->data, sizeof(stateid->data));
1253 return 0;
1254
1255}
1256/*
1257 * END OF "GENERIC" ENCODE ROUTINES.
1258 */
1259
1260/*
1261 * Encode an ACCESS request
1262 */
1263static int nfs4_xdr_enc_access(struct rpc_rqst *req, uint32_t *p, const struct nfs4_accessargs *args)
1264{
1265 struct xdr_stream xdr;
1266 struct compound_hdr hdr = {
1267 .nops = 2,
1268 };
1269 int status;
1270
1271 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1272 encode_compound_hdr(&xdr, &hdr);
1273 if ((status = encode_putfh(&xdr, args->fh)) == 0)
1274 status = encode_access(&xdr, args->access);
1275 return status;
1276}
1277
1278/*
1279 * Encode LOOKUP request
1280 */
1281static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_arg *args)
1282{
1283 struct xdr_stream xdr;
1284 struct compound_hdr hdr = {
1285 .nops = 4,
1286 };
1287 int status;
1288
1289 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1290 encode_compound_hdr(&xdr, &hdr);
1291 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1292 goto out;
1293 if ((status = encode_lookup(&xdr, args->name)) != 0)
1294 goto out;
1295 if ((status = encode_getfh(&xdr)) != 0)
1296 goto out;
1297 status = encode_getfattr(&xdr, args->bitmask);
1298out:
1299 return status;
1300}
1301
1302/*
1303 * Encode LOOKUP_ROOT request
1304 */
1305static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_root_arg *args)
1306{
1307 struct xdr_stream xdr;
1308 struct compound_hdr hdr = {
1309 .nops = 3,
1310 };
1311 int status;
1312
1313 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1314 encode_compound_hdr(&xdr, &hdr);
1315 if ((status = encode_putrootfh(&xdr)) != 0)
1316 goto out;
1317 if ((status = encode_getfh(&xdr)) == 0)
1318 status = encode_getfattr(&xdr, args->bitmask);
1319out:
1320 return status;
1321}
1322
1323/*
1324 * Encode REMOVE request
1325 */
1326static int nfs4_xdr_enc_remove(struct rpc_rqst *req, uint32_t *p, const struct nfs4_remove_arg *args)
1327{
1328 struct xdr_stream xdr;
1329 struct compound_hdr hdr = {
1330 .nops = 2,
1331 };
1332 int status;
1333
1334 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1335 encode_compound_hdr(&xdr, &hdr);
1336 if ((status = encode_putfh(&xdr, args->fh)) == 0)
1337 status = encode_remove(&xdr, args->name);
1338 return status;
1339}
1340
1341/*
1342 * Encode RENAME request
1343 */
1344static int nfs4_xdr_enc_rename(struct rpc_rqst *req, uint32_t *p, const struct nfs4_rename_arg *args)
1345{
1346 struct xdr_stream xdr;
1347 struct compound_hdr hdr = {
6caf2c82 1348 .nops = 7,
1da177e4
LT		 1349 };
1350 int status;
1351
1352 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1353 encode_compound_hdr(&xdr, &hdr);
1354 if ((status = encode_putfh(&xdr, args->old_dir)) != 0)
1355 goto out;
1356 if ((status = encode_savefh(&xdr)) != 0)
1357 goto out;
1358 if ((status = encode_putfh(&xdr, args->new_dir)) != 0)
1359 goto out;
6caf2c82
TM		 1360 if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0)
1361 goto out;
1362 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
1363 goto out;
1364 if ((status = encode_restorefh(&xdr)) != 0)
1365 goto out;
1366 status = encode_getfattr(&xdr, args->bitmask);
1da177e4
LT		 1367out:
1368 return status;
1369}
1370
1371/*
1372 * Encode LINK request
1373 */
1374static int nfs4_xdr_enc_link(struct rpc_rqst *req, uint32_t *p, const struct nfs4_link_arg *args)
1375{
1376 struct xdr_stream xdr;
1377 struct compound_hdr hdr = {
91ba2eee 1378 .nops = 7,
1da177e4
LT		 1379 };
1380 int status;
1381
1382 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1383 encode_compound_hdr(&xdr, &hdr);
1384 if ((status = encode_putfh(&xdr, args->fh)) != 0)
1385 goto out;
1386 if ((status = encode_savefh(&xdr)) != 0)
1387 goto out;
1388 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1389 goto out;
91ba2eee
TM		 1390 if ((status = encode_link(&xdr, args->name)) != 0)
1391 goto out;
1392 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
1393 goto out;
1394 if ((status = encode_restorefh(&xdr)) != 0)
1395 goto out;
1396 status = encode_getfattr(&xdr, args->bitmask);
1da177e4
LT		 1397out:
1398 return status;
1399}
1400
1401/*
1402 * Encode CREATE request
1403 */
1404static int nfs4_xdr_enc_create(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args)
1405{
1406 struct xdr_stream xdr;
1407 struct compound_hdr hdr = {
56ae19f3 1408 .nops = 7,
1da177e4
LT		 1409 };
1410 int status;
1411
1412 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1413 encode_compound_hdr(&xdr, &hdr);
1414 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1415 goto out;
56ae19f3
TM		 1416 if ((status = encode_savefh(&xdr)) != 0)
1417 goto out;
1da177e4
LT		 1418 if ((status = encode_create(&xdr, args)) != 0)
1419 goto out;
1420 if ((status = encode_getfh(&xdr)) != 0)
1421 goto out;
56ae19f3
TM		 1422 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
1423 goto out;
1424 if ((status = encode_restorefh(&xdr)) != 0)
1425 goto out;
1da177e4
LT		 1426 status = encode_getfattr(&xdr, args->bitmask);
1427out:
1428 return status;
1429}
1430
1431/*
1432 * Encode SYMLINK request
1433 */
1434static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args)
1435{
1436 return nfs4_xdr_enc_create(req, p, args);
1437}
1438
1439/*
1440 * Encode GETATTR request
1441 */
1442static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, uint32_t *p, const struct nfs4_getattr_arg *args)
1443{
1444 struct xdr_stream xdr;
1445 struct compound_hdr hdr = {
1446 .nops = 2,
1447 };
1448 int status;
1449
1450 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1451 encode_compound_hdr(&xdr, &hdr);
1452 if ((status = encode_putfh(&xdr, args->fh)) == 0)
1453 status = encode_getfattr(&xdr, args->bitmask);
1454 return status;
1455}
1456
1457/*
1458 * Encode a CLOSE request
1459 */
1460static int nfs4_xdr_enc_close(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args)
1461{
1462 struct xdr_stream xdr;
1463 struct compound_hdr hdr = {
516a6af6 1464 .nops = 3,
1da177e4
LT		 1465 };
1466 int status;
1467
1468 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1469 encode_compound_hdr(&xdr, &hdr);
1470 status = encode_putfh(&xdr, args->fh);
1471 if(status)
1472 goto out;
1473 status = encode_close(&xdr, args);
516a6af6
TM		 1474 if (status != 0)
1475 goto out;
1476 status = encode_getfattr(&xdr, args->bitmask);
1da177e4
LT		 1477out:
1478 return status;
1479}
1480
1481/*
1482 * Encode an OPEN request
1483 */
1484static int nfs4_xdr_enc_open(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args)
1485{
1486 struct xdr_stream xdr;
1487 struct compound_hdr hdr = {
56ae19f3 1488 .nops = 7,
1da177e4
LT		 1489 };
1490 int status;
1491
cee54fc9
TM		 1492 status = nfs_wait_on_sequence(args->seqid, req->rq_task);
1493 if (status != 0)
1494 goto out;
1da177e4
LT		 1495 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1496 encode_compound_hdr(&xdr, &hdr);
1497 status = encode_putfh(&xdr, args->fh);
56ae19f3
TM		 1498 if (status)
1499 goto out;
1500 status = encode_savefh(&xdr);
1da177e4
LT		 1501 if (status)
1502 goto out;
1503 status = encode_open(&xdr, args);
1504 if (status)
1505 goto out;
1506 status = encode_getfh(&xdr);
1507 if (status)
1508 goto out;
1509 status = encode_getfattr(&xdr, args->bitmask);
56ae19f3
TM		 1510 if (status)
1511 goto out;
1512 status = encode_restorefh(&xdr);
1513 if (status)
1514 goto out;
1515 status = encode_getfattr(&xdr, args->bitmask);
1da177e4
LT		 1516out:
1517 return status;
1518}
1519
1520/*
1521 * Encode an OPEN_CONFIRM request
1522 */
1523static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_open_confirmargs *args)
1524{
1525 struct xdr_stream xdr;
1526 struct compound_hdr hdr = {
1527 .nops = 2,
1528 };
1529 int status;
1530
cee54fc9
TM		 1531 status = nfs_wait_on_sequence(args->seqid, req->rq_task);
1532 if (status != 0)
1533 goto out;
1da177e4
LT		 1534 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1535 encode_compound_hdr(&xdr, &hdr);
1536 status = encode_putfh(&xdr, args->fh);
1537 if(status)
1538 goto out;
1539 status = encode_open_confirm(&xdr, args);
1540out:
1541 return status;
1542}
1543
1544/*
1545 * Encode an OPEN request with no attributes.
1546 */
1547static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args)
1548{
1549 struct xdr_stream xdr;
1550 struct compound_hdr hdr = {
1551 .nops = 2,
1552 };
1553 int status;
1554
cee54fc9
TM		 1555 status = nfs_wait_on_sequence(args->seqid, req->rq_task);
1556 if (status != 0)
1557 goto out;
1da177e4
LT		 1558 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1559 encode_compound_hdr(&xdr, &hdr);
1560 status = encode_putfh(&xdr, args->fh);
1561 if (status)
1562 goto out;
1563 status = encode_open(&xdr, args);
1564out:
1565 return status;
1566}
1567
1568/*
1569 * Encode an OPEN_DOWNGRADE request
1570 */
1571static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args)
1572{
1573 struct xdr_stream xdr;
1574 struct compound_hdr hdr = {
516a6af6 1575 .nops = 3,
1da177e4
LT		 1576 };
1577 int status;
1578
1579 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1580 encode_compound_hdr(&xdr, &hdr);
1581 status = encode_putfh(&xdr, args->fh);
1582 if (status)
1583 goto out;
1584 status = encode_open_downgrade(&xdr, args);
516a6af6
TM		 1585 if (status != 0)
1586 goto out;
1587 status = encode_getfattr(&xdr, args->bitmask);
1da177e4
LT		 1588out:
1589 return status;
1590}
1591
1592/*
1593 * Encode a LOCK request
1594 */
1595static int nfs4_xdr_enc_lock(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args)
1596{
1597 struct xdr_stream xdr;
1598 struct compound_hdr hdr = {
1599 .nops = 2,
1600 };
cee54fc9 1601 struct nfs_lock_opargs *opargs = args->u.lock;
1da177e4
LT		 1602 int status;
1603
06735b34 1604 status = nfs_wait_on_sequence(opargs->lock_seqid, req->rq_task);
cee54fc9
TM		 1605 if (status != 0)
1606 goto out;
06735b34
TM		 1607 /* Do we need to do an open_to_lock_owner? */
1608 if (opargs->lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED)
1609 opargs->new_lock_owner = 0;
1da177e4
LT		 1610 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1611 encode_compound_hdr(&xdr, &hdr);
1612 status = encode_putfh(&xdr, args->fh);
1613 if(status)
1614 goto out;
1615 status = encode_lock(&xdr, args);
1616out:
1617 return status;
1618}
1619
1620/*
1621 * Encode a LOCKT request
1622 */
1623static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args)
1624{
1625 struct xdr_stream xdr;
1626 struct compound_hdr hdr = {
1627 .nops = 2,
1628 };
1629 int status;
1630
1631 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1632 encode_compound_hdr(&xdr, &hdr);
1633 status = encode_putfh(&xdr, args->fh);
1634 if(status)
1635 goto out;
1636 status = encode_lockt(&xdr, args);
1637out:
1638 return status;
1639}
1640
1641/*
1642 * Encode a LOCKU request
1643 */
1644static int nfs4_xdr_enc_locku(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args)
1645{
1646 struct xdr_stream xdr;
1647 struct compound_hdr hdr = {
1648 .nops = 2,
1649 };
1650 int status;
1651
1652 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1653 encode_compound_hdr(&xdr, &hdr);
1654 status = encode_putfh(&xdr, args->fh);
1655 if(status)
1656 goto out;
1657 status = encode_locku(&xdr, args);
1658out:
1659 return status;
1660}
1661
1662/*
1663 * Encode a READLINK request
1664 */
1665static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readlink *args)
1666{
1667 struct xdr_stream xdr;
1668 struct compound_hdr hdr = {
1669 .nops = 2,
1670 };
1671 int status;
1672
1673 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1674 encode_compound_hdr(&xdr, &hdr);
1675 status = encode_putfh(&xdr, args->fh);
1676 if(status)
1677 goto out;
1678 status = encode_readlink(&xdr, args, req);
1679out:
1680 return status;
1681}
1682
1683/*
1684 * Encode a READDIR request
1685 */
1686static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readdir_arg *args)
1687{
1688 struct xdr_stream xdr;
1689 struct compound_hdr hdr = {
1690 .nops = 2,
1691 };
1692 int status;
1693
1694 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1695 encode_compound_hdr(&xdr, &hdr);
1696 status = encode_putfh(&xdr, args->fh);
1697 if(status)
1698 goto out;
1699 status = encode_readdir(&xdr, args, req);
1700out:
1701 return status;
1702}
1703
1704/*
1705 * Encode a READ request
1706 */
1707static int nfs4_xdr_enc_read(struct rpc_rqst *req, uint32_t *p, struct nfs_readargs *args)
1708{
1709 struct rpc_auth *auth = req->rq_task->tk_auth;
1710 struct xdr_stream xdr;
1711 struct compound_hdr hdr = {
1712 .nops = 2,
1713 };
1714 int replen, status;
1715
1716 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1717 encode_compound_hdr(&xdr, &hdr);
1718 status = encode_putfh(&xdr, args->fh);
1719 if (status)
1720 goto out;
1721 status = encode_read(&xdr, args);
1722 if (status)
1723 goto out;
1724
1725 /* set up reply kvec
1726 * toplevel status + taglen=0 + rescount + OP_PUTFH + status
1727 * + OP_READ + status + eof + datalen = 9
1728 */
1729 replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2;
1730 xdr_inline_pages(&req->rq_rcv_buf, replen,
1731 args->pages, args->pgbase, args->count);
1732out:
1733 return status;
1734}
1735
1736/*
1737 * Encode an SETATTR request
1738 */
1739static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, uint32_t *p, struct nfs_setattrargs *args)
1740
1741{
1742 struct xdr_stream xdr;
1743 struct compound_hdr hdr = {
1744 .nops = 3,
1745 };
1746 int status;
1747
1748 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1749 encode_compound_hdr(&xdr, &hdr);
1750 status = encode_putfh(&xdr, args->fh);
1751 if(status)
1752 goto out;
1753 status = encode_setattr(&xdr, args, args->server);
1754 if(status)
1755 goto out;
1756 status = encode_getfattr(&xdr, args->bitmask);
1757out:
1758 return status;
1759}
1760
029d105e
BF		 1761/*
1762 * Encode a GETACL request
1763 */
1764static int
1765nfs4_xdr_enc_getacl(struct rpc_rqst *req, uint32_t *p,
1766 struct nfs_getaclargs *args)
1767{
1768 struct xdr_stream xdr;
1769 struct rpc_auth *auth = req->rq_task->tk_auth;
1770 struct compound_hdr hdr = {
1771 .nops = 2,
1772 };
1773 int replen, status;
1774
1775 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1776 encode_compound_hdr(&xdr, &hdr);
1777 status = encode_putfh(&xdr, args->fh);
1778 if (status)
1779 goto out;
1780 status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0);
1781 /* set up reply buffer: */
1782 replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2;
1783 xdr_inline_pages(&req->rq_rcv_buf, replen,
1784 args->acl_pages, args->acl_pgbase, args->acl_len);
1785out:
1786 return status;
1787}
1788
1da177e4
LT		 1789/*
1790 * Encode a WRITE request
1791 */
1792static int nfs4_xdr_enc_write(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args)
1793{
1794 struct xdr_stream xdr;
1795 struct compound_hdr hdr = {
1796 .nops = 2,
1797 };
1798 int status;
1799
1800 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1801 encode_compound_hdr(&xdr, &hdr);
1802 status = encode_putfh(&xdr, args->fh);
1803 if (status)
1804 goto out;
1805 status = encode_write(&xdr, args);
1806out:
1807 return status;
1808}
1809
1810/*
1811 * a COMMIT request
1812 */
1813static int nfs4_xdr_enc_commit(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args)
1814{
1815 struct xdr_stream xdr;
1816 struct compound_hdr hdr = {
1817 .nops = 2,
1818 };
1819 int status;
1820
1821 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1822 encode_compound_hdr(&xdr, &hdr);
1823 status = encode_putfh(&xdr, args->fh);
1824 if (status)
1825 goto out;
1826 status = encode_commit(&xdr, args);
1827out:
1828 return status;
1829}
1830
1831/*
1832 * FSINFO request
1833 */
1834static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs4_fsinfo_arg *args)
1835{
1836 struct xdr_stream xdr;
1837 struct compound_hdr hdr = {
1838 .nops = 2,
1839 };
1840 int status;
1841
1842 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1843 encode_compound_hdr(&xdr, &hdr);
1844 status = encode_putfh(&xdr, args->fh);
1845 if (!status)
1846 status = encode_fsinfo(&xdr, args->bitmask);
1847 return status;
1848}
1849
1850/*
1851 * a PATHCONF request
1852 */
1853static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, uint32_t *p, const struct nfs4_pathconf_arg *args)
1854{
1da177e4
LT		 1855 struct xdr_stream xdr;
1856 struct compound_hdr hdr = {
1857 .nops = 2,
1858 };
1859 int status;
1860
1861 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1862 encode_compound_hdr(&xdr, &hdr);
1863 status = encode_putfh(&xdr, args->fh);
1864 if (!status)
1865 status = encode_getattr_one(&xdr,
1866 args->bitmask[0] & nfs4_pathconf_bitmap[0]);
1867 return status;
1868}
1869
1870/*
1871 * a STATFS request
1872 */
1873static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, uint32_t *p, const struct nfs4_statfs_arg *args)
1874{
1da177e4
LT		 1875 struct xdr_stream xdr;
1876 struct compound_hdr hdr = {
1877 .nops = 2,
1878 };
1879 int status;
1880
1881 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1882 encode_compound_hdr(&xdr, &hdr);
1883 status = encode_putfh(&xdr, args->fh);
1884 if (status == 0)
1885 status = encode_getattr_two(&xdr,
1886 args->bitmask[0] & nfs4_statfs_bitmap[0],
1887 args->bitmask[1] & nfs4_statfs_bitmap[1]);
1888 return status;
1889}
1890
1891/*
1892 * GETATTR_BITMAP request
1893 */
1894static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, uint32_t *p, const struct nfs_fh *fhandle)
1895{
1896 struct xdr_stream xdr;
1897 struct compound_hdr hdr = {
1898 .nops = 2,
1899 };
1900 int status;
1901
1902 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1903 encode_compound_hdr(&xdr, &hdr);
1904 status = encode_putfh(&xdr, fhandle);
1905 if (status == 0)
1906 status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
1907 FATTR4_WORD0_LINK_SUPPORT|
1908 FATTR4_WORD0_SYMLINK_SUPPORT|
1909 FATTR4_WORD0_ACLSUPPORT);
1910 return status;
1911}
1912
1913/*
1914 * a RENEW request
1915 */
1916static int nfs4_xdr_enc_renew(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp)
1917{
1918 struct xdr_stream xdr;
1919 struct compound_hdr hdr = {
1920 .nops = 1,
1921 };
1922
1923 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1924 encode_compound_hdr(&xdr, &hdr);
1925 return encode_renew(&xdr, clp);
1926}
1927
1928/*
1929 * a SETCLIENTID request
1930 */
1931static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, uint32_t *p, struct nfs4_setclientid *sc)
1932{
1933 struct xdr_stream xdr;
1934 struct compound_hdr hdr = {
1935 .nops = 1,
1936 };
1937
1938 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1939 encode_compound_hdr(&xdr, &hdr);
1940 return encode_setclientid(&xdr, sc);
1941}
1942
1943/*
1944 * a SETCLIENTID_CONFIRM request
1945 */
1946static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp)
1947{
1948 struct xdr_stream xdr;
1949 struct compound_hdr hdr = {
1950 .nops = 3,
1951 };
1952 const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
1953 int status;
1954
1955 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1956 encode_compound_hdr(&xdr, &hdr);
1957 status = encode_setclientid_confirm(&xdr, clp);
1958 if (!status)
1959 status = encode_putrootfh(&xdr);
1960 if (!status)
1961 status = encode_fsinfo(&xdr, lease_bitmap);
1962 return status;
1963}
1964
1965/*
1966 * DELEGRETURN request
1967 */
1968static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, uint32_t *p, const struct nfs4_delegreturnargs *args)
1969{
1970 struct xdr_stream xdr;
1971 struct compound_hdr hdr = {
1972 .nops = 2,
1973 };
1974 int status;
1975
1976 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1977 encode_compound_hdr(&xdr, &hdr);
1978 if ((status = encode_putfh(&xdr, args->fhandle)) == 0)
1979 status = encode_delegreturn(&xdr, args->stateid);
1980 return status;
1981}
1982
1983/*
1984 * START OF "GENERIC" DECODE ROUTINES.
1985 * These may look a little ugly since they are imported from a "generic"
1986 * set of XDR encode/decode routines which are intended to be shared by
1987 * all of our NFSv4 implementations (OpenBSD, MacOS X...).
1988 *
1989 * If the pain of reading these is too great, it should be a straightforward
1990 * task to translate them into Linux-specific versions which are more
1991 * consistent with the style used in NFSv2/v3...
1992 */
1993#define READ32(x) (x) = ntohl(*p++)
1994#define READ64(x) do { \
1995 (x) = (u64)ntohl(*p++) << 32; \
1996 (x) |= ntohl(*p++); \
1997} while (0)
1998#define READTIME(x) do { \
1999 p++; \
2000 (x.tv_sec) = ntohl(*p++); \
2001 (x.tv_nsec) = ntohl(*p++); \
2002} while (0)
2003#define COPYMEM(x,nbytes) do { \
2004 memcpy((x), p, nbytes); \
2005 p += XDR_QUADLEN(nbytes); \
2006} while (0)
2007
2008#define READ_BUF(nbytes) do { \
2009 p = xdr_inline_decode(xdr, nbytes); \
2010 if (!p) { \
2011 printk(KERN_WARNING "%s: reply buffer overflowed in line %d.", \
2012 __FUNCTION__, __LINE__); \
2013 return -EIO; \
2014 } \
2015} while (0)
2016
2017static int decode_opaque_inline(struct xdr_stream *xdr, uint32_t *len, char **string)
2018{
2019 uint32_t *p;
2020
2021 READ_BUF(4);
2022 READ32(*len);
2023 READ_BUF(*len);
2024 *string = (char *)p;
2025 return 0;
2026}
2027
2028static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
2029{
2030 uint32_t *p;
2031
2032 READ_BUF(8);
2033 READ32(hdr->status);
2034 READ32(hdr->taglen);
2035
2036 READ_BUF(hdr->taglen + 4);
2037 hdr->tag = (char *)p;
2038 p += XDR_QUADLEN(hdr->taglen);
2039 READ32(hdr->nops);
2040 return 0;
2041}
2042
2043static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
2044{
2045 uint32_t *p;
2046 uint32_t opnum;
2047 int32_t nfserr;
2048
2049 READ_BUF(8);
2050 READ32(opnum);
2051 if (opnum != expected) {
2052 printk(KERN_NOTICE
2053 "nfs4_decode_op_hdr: Server returned operation"
2054 " %d but we issued a request for %d\n",
2055 opnum, expected);
2056 return -EIO;
2057 }
2058 READ32(nfserr);
2059 if (nfserr != NFS_OK)
2060 return -nfs_stat_to_errno(nfserr);
2061 return 0;
2062}
2063
2064/* Dummy routine */
2065static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs4_client *clp)
2066{
2067 uint32_t *p;
2068 uint32_t strlen;
2069 char *str;
2070
2071 READ_BUF(12);
2072 return decode_opaque_inline(xdr, &strlen, &str);
2073}
2074
2075static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
2076{
2077 uint32_t bmlen, *p;
2078
2079 READ_BUF(4);
2080 READ32(bmlen);
2081
2082 bitmap[0] = bitmap[1] = 0;
2083 READ_BUF((bmlen << 2));
2084 if (bmlen > 0) {
2085 READ32(bitmap[0]);
2086 if (bmlen > 1)
2087 READ32(bitmap[1]);
2088 }
2089 return 0;
2090}
2091
2092static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, uint32_t **savep)
2093{
2094 uint32_t *p;
2095
2096 READ_BUF(4);
2097 READ32(*attrlen);
2098 *savep = xdr->p;
2099 return 0;
2100}
2101
2102static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
2103{
2104 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
2105 decode_attr_bitmap(xdr, bitmask);
2106 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
2107 } else
2108 bitmask[0] = bitmask[1] = 0;
2109 dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]);
2110 return 0;
2111}
2112
2113static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
2114{
2115 uint32_t *p;
2116
2117 *type = 0;
2118 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
2119 return -EIO;
2120 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
2121 READ_BUF(4);
2122 READ32(*type);
2123 if (*type < NF4REG || *type > NF4NAMEDATTR) {
2124 dprintk("%s: bad type %d\n", __FUNCTION__, *type);
2125 return -EIO;
2126 }
2127 bitmap[0] &= ~FATTR4_WORD0_TYPE;
2128 }
2129 dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type);
2130 return 0;
2131}
2132
2133static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
2134{
2135 uint32_t *p;
2136
2137 *change = 0;
2138 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
2139 return -EIO;
2140 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
2141 READ_BUF(8);
2142 READ64(*change);
2143 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
2144 }
2145 dprintk("%s: change attribute=%Lu\n", __FUNCTION__,
2146 (unsigned long long)*change);
2147 return 0;
2148}
2149
2150static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
2151{
2152 uint32_t *p;
2153
2154 *size = 0;
2155 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
2156 return -EIO;
2157 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
2158 READ_BUF(8);
2159 READ64(*size);
2160 bitmap[0] &= ~FATTR4_WORD0_SIZE;
2161 }
2162 dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size);
2163 return 0;
2164}
2165
2166static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2167{
2168 uint32_t *p;
2169
2170 *res = 0;
2171 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
2172 return -EIO;
2173 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
2174 READ_BUF(4);
2175 READ32(*res);
2176 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
2177 }
2178 dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true");
2179 return 0;
2180}
2181
2182static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2183{
2184 uint32_t *p;
2185
2186 *res = 0;
2187 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
2188 return -EIO;
2189 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
2190 READ_BUF(4);
2191 READ32(*res);
2192 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
2193 }
2194 dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true");
2195 return 0;
2196}
2197
2198static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fsid *fsid)
2199{
2200 uint32_t *p;
2201
2202 fsid->major = 0;
2203 fsid->minor = 0;
2204 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
2205 return -EIO;
2206 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
2207 READ_BUF(16);
2208 READ64(fsid->major);
2209 READ64(fsid->minor);
2210 bitmap[0] &= ~FATTR4_WORD0_FSID;
2211 }
2212 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__,
2213 (unsigned long long)fsid->major,
2214 (unsigned long long)fsid->minor);
2215 return 0;
2216}
2217
2218static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2219{
2220 uint32_t *p;
2221
2222 *res = 60;
2223 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
2224 return -EIO;
2225 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
2226 READ_BUF(4);
2227 READ32(*res);
2228 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
2229 }
2230 dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res);
2231 return 0;
2232}
2233
2234static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2235{
2236 uint32_t *p;
2237
2238 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
2239 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
2240 return -EIO;
2241 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
2242 READ_BUF(4);
2243 READ32(*res);
2244 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
2245 }
2246 dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res);
2247 return 0;
2248}
2249
2250static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
2251{
2252 uint32_t *p;
2253
2254 *fileid = 0;
2255 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
2256 return -EIO;
2257 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
2258 READ_BUF(8);
2259 READ64(*fileid);
2260 bitmap[0] &= ~FATTR4_WORD0_FILEID;
2261 }
2262 dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid);
2263 return 0;
2264}
2265
2266static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2267{
2268 uint32_t *p;
2269 int status = 0;
2270
2271 *res = 0;
2272 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
2273 return -EIO;
2274 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
2275 READ_BUF(8);
2276 READ64(*res);
2277 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
2278 }
2279 dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2280 return status;
2281}
2282
2283static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2284{
2285 uint32_t *p;
2286 int status = 0;
2287
2288 *res = 0;
2289 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
2290 return -EIO;
2291 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
2292 READ_BUF(8);
2293 READ64(*res);
2294 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
2295 }
2296 dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2297 return status;
2298}
2299
2300static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2301{
2302 uint32_t *p;
2303 int status = 0;
2304
2305 *res = 0;
2306 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
2307 return -EIO;
2308 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
2309 READ_BUF(8);
2310 READ64(*res);
2311 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
2312 }
2313 dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2314 return status;
2315}
2316
2317static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2318{
2319 uint32_t *p;
2320 int status = 0;
2321
2322 *res = 0;
2323 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
2324 return -EIO;
2325 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
2326 READ_BUF(8);
2327 READ64(*res);
2328 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
2329 }
2330 dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2331 return status;
2332}
2333
2334static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
2335{
2336 uint32_t *p;
2337 int status = 0;
2338
2339 *maxlink = 1;
2340 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
2341 return -EIO;
2342 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
2343 READ_BUF(4);
2344 READ32(*maxlink);
2345 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
2346 }
2347 dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink);
2348 return status;
2349}
2350
2351static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
2352{
2353 uint32_t *p;
2354 int status = 0;
2355
2356 *maxname = 1024;
2357 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
2358 return -EIO;
2359 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
2360 READ_BUF(4);
2361 READ32(*maxname);
2362 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
2363 }
2364 dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname);
2365 return status;
2366}
2367
2368static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2369{
2370 uint32_t *p;
2371 int status = 0;
2372
2373 *res = 1024;
2374 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
2375 return -EIO;
2376 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
2377 uint64_t maxread;
2378 READ_BUF(8);
2379 READ64(maxread);
2380 if (maxread > 0x7FFFFFFF)
2381 maxread = 0x7FFFFFFF;
2382 *res = (uint32_t)maxread;
2383 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
2384 }
2385 dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res);
2386 return status;
2387}
2388
2389static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2390{
2391 uint32_t *p;
2392 int status = 0;
2393
2394 *res = 1024;
2395 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
2396 return -EIO;
2397 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
2398 uint64_t maxwrite;
2399 READ_BUF(8);
2400 READ64(maxwrite);
2401 if (maxwrite > 0x7FFFFFFF)
2402 maxwrite = 0x7FFFFFFF;
2403 *res = (uint32_t)maxwrite;
2404 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
2405 }
2406 dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res);
2407 return status;
2408}
2409
2410static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode)
2411{
2412 uint32_t *p;
2413
2414 *mode = 0;
2415 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
2416 return -EIO;
2417 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
2418 READ_BUF(4);
2419 READ32(*mode);
2420 *mode &= ~S_IFMT;
2421 bitmap[1] &= ~FATTR4_WORD1_MODE;
2422 }
2423 dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode);
2424 return 0;
2425}
2426
2427static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
2428{
2429 uint32_t *p;
2430
2431 *nlink = 1;
2432 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
2433 return -EIO;
2434 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
2435 READ_BUF(4);
2436 READ32(*nlink);
2437 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
2438 }
2439 dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink);
2440 return 0;
2441}
2442
2443static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *uid)
2444{
2445 uint32_t len, *p;
2446
2447 *uid = -2;
2448 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
2449 return -EIO;
2450 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
2451 READ_BUF(4);
2452 READ32(len);
2453 READ_BUF(len);
2454 if (len < XDR_MAX_NETOBJ) {
2455 if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0)
2456 dprintk("%s: nfs_map_name_to_uid failed!\n",
2457 __FUNCTION__);
2458 } else
2459 printk(KERN_WARNING "%s: name too long (%u)!\n",
2460 __FUNCTION__, len);
2461 bitmap[1] &= ~FATTR4_WORD1_OWNER;
2462 }
2463 dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid);
2464 return 0;
2465}
2466
2467static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *gid)
2468{
2469 uint32_t len, *p;
2470
2471 *gid = -2;
2472 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
2473 return -EIO;
2474 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
2475 READ_BUF(4);
2476 READ32(len);
2477 READ_BUF(len);
2478 if (len < XDR_MAX_NETOBJ) {
2479 if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0)
2480 dprintk("%s: nfs_map_group_to_gid failed!\n",
2481 __FUNCTION__);
2482 } else
2483 printk(KERN_WARNING "%s: name too long (%u)!\n",
2484 __FUNCTION__, len);
2485 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
2486 }
2487 dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid);
2488 return 0;
2489}
2490
2491static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
2492{
2493 uint32_t major = 0, minor = 0, *p;
2494
2495 *rdev = MKDEV(0,0);
2496 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
2497 return -EIO;
2498 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
2499 dev_t tmp;
2500
2501 READ_BUF(8);
2502 READ32(major);
2503 READ32(minor);
2504 tmp = MKDEV(major, minor);
2505 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
2506 *rdev = tmp;
2507 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
2508 }
2509 dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor);
2510 return 0;
2511}
2512
2513static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2514{
2515 uint32_t *p;
2516 int status = 0;
2517
2518 *res = 0;
2519 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
2520 return -EIO;
2521 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
2522 READ_BUF(8);
2523 READ64(*res);
2524 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
2525 }
2526 dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2527 return status;
2528}
2529
2530static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2531{
2532 uint32_t *p;
2533 int status = 0;
2534
2535 *res = 0;
2536 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
2537 return -EIO;
2538 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
2539 READ_BUF(8);
2540 READ64(*res);
2541 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
2542 }
2543 dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2544 return status;
2545}
2546
2547static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2548{
2549 uint32_t *p;
2550 int status = 0;
2551
2552 *res = 0;
2553 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
2554 return -EIO;
2555 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
2556 READ_BUF(8);
2557 READ64(*res);
2558 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
2559 }
2560 dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2561 return status;
2562}
2563
2564static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
2565{
2566 uint32_t *p;
2567
2568 *used = 0;
2569 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
2570 return -EIO;
2571 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
2572 READ_BUF(8);
2573 READ64(*used);
2574 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
2575 }
2576 dprintk("%s: space used=%Lu\n", __FUNCTION__,
2577 (unsigned long long)*used);
2578 return 0;
2579}
2580
2581static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
2582{
2583 uint32_t *p;
2584 uint64_t sec;
2585 uint32_t nsec;
2586
2587 READ_BUF(12);
2588 READ64(sec);
2589 READ32(nsec);
2590 time->tv_sec = (time_t)sec;
2591 time->tv_nsec = (long)nsec;
2592 return 0;
2593}
2594
2595static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2596{
2597 int status = 0;
2598
2599 time->tv_sec = 0;
2600 time->tv_nsec = 0;
2601 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
2602 return -EIO;
2603 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
2604 status = decode_attr_time(xdr, time);
2605 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
2606 }
2607 dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2608 return status;
2609}
2610
2611static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2612{
2613 int status = 0;
2614
2615 time->tv_sec = 0;
2616 time->tv_nsec = 0;
2617 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
2618 return -EIO;
2619 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
2620 status = decode_attr_time(xdr, time);
2621 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
2622 }
2623 dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2624 return status;
2625}
2626
2627static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2628{
2629 int status = 0;
2630
2631 time->tv_sec = 0;
2632 time->tv_nsec = 0;
2633 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
2634 return -EIO;
2635 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
2636 status = decode_attr_time(xdr, time);
2637 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
2638 }
2639 dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2640 return status;
2641}
2642
2643static int verify_attr_len(struct xdr_stream *xdr, uint32_t *savep, uint32_t attrlen)
2644{
2645 unsigned int attrwords = XDR_QUADLEN(attrlen);
2646 unsigned int nwords = xdr->p - savep;
2647
2648 if (unlikely(attrwords != nwords)) {
2649 printk(KERN_WARNING "%s: server returned incorrect attribute length: %u %c %u\n",
2650 __FUNCTION__,
2651 attrwords << 2,
2652 (attrwords < nwords) ? '<' : '>',
2653 nwords << 2);
2654 return -EIO;
2655 }
2656 return 0;
2657}
2658
2659static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2660{
2661 uint32_t *p;
2662
2663 READ_BUF(20);
2664 READ32(cinfo->atomic);
2665 READ64(cinfo->before);
2666 READ64(cinfo->after);
2667 return 0;
2668}
2669
2670static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
2671{
2672 uint32_t *p;
2673 uint32_t supp, acc;
2674 int status;
2675
2676 status = decode_op_hdr(xdr, OP_ACCESS);
2677 if (status)
2678 return status;
2679 READ_BUF(8);
2680 READ32(supp);
2681 READ32(acc);
2682 access->supported = supp;
2683 access->access = acc;
2684 return 0;
2685}
2686
2687static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
2688{
2689 uint32_t *p;
2690 int status;
2691
2692 status = decode_op_hdr(xdr, OP_CLOSE);
2693 if (status)
2694 return status;
2695 READ_BUF(sizeof(res->stateid.data));
2696 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
2697 return 0;
2698}
2699
2700static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
2701{
2702 uint32_t *p;
2703 int status;
2704
2705 status = decode_op_hdr(xdr, OP_COMMIT);
2706 if (status)
2707 return status;
2708 READ_BUF(8);
2709 COPYMEM(res->verf->verifier, 8);
2710 return 0;
2711}
2712
2713static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2714{
2715 uint32_t *p;
2716 uint32_t bmlen;
2717 int status;
2718
2719 status = decode_op_hdr(xdr, OP_CREATE);
2720 if (status)
2721 return status;
2722 if ((status = decode_change_info(xdr, cinfo)))
2723 return status;
2724 READ_BUF(4);
2725 READ32(bmlen);
2726 READ_BUF(bmlen << 2);
2727 return 0;
2728}
2729
2730static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
2731{
2732 uint32_t *savep;
2733 uint32_t attrlen,
2734 bitmap[2] = {0};
2735 int status;
2736
2737 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2738 goto xdr_error;
2739 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2740 goto xdr_error;
2741 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2742 goto xdr_error;
2743 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
2744 goto xdr_error;
2745 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
2746 goto xdr_error;
2747 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
2748 goto xdr_error;
2749 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
2750 goto xdr_error;
2751 status = verify_attr_len(xdr, savep, attrlen);
2752xdr_error:
2753 if (status != 0)
2754 printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
2755 return status;
2756}
2757
2758static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
2759{
2760 uint32_t *savep;
2761 uint32_t attrlen,
2762 bitmap[2] = {0};
2763 int status;
2764
2765 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2766 goto xdr_error;
2767 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2768 goto xdr_error;
2769 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2770 goto xdr_error;
2771
2772 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
2773 goto xdr_error;
2774 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
2775 goto xdr_error;
2776 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
2777 goto xdr_error;
2778 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
2779 goto xdr_error;
2780 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
2781 goto xdr_error;
2782 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
2783 goto xdr_error;
2784
2785 status = verify_attr_len(xdr, savep, attrlen);
2786xdr_error:
2787 if (status != 0)
2788 printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
2789 return status;
2790}
2791
2792static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
2793{
2794 uint32_t *savep;
2795 uint32_t attrlen,
2796 bitmap[2] = {0};
2797 int status;
2798
2799 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2800 goto xdr_error;
2801 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2802 goto xdr_error;
2803 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2804 goto xdr_error;
2805
2806 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
2807 goto xdr_error;
2808 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
2809 goto xdr_error;
2810
2811 status = verify_attr_len(xdr, savep, attrlen);
2812xdr_error:
2813 if (status != 0)
2814 printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
2815 return status;
2816}
2817
2818static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server)
2819{
2820 uint32_t *savep;
2821 uint32_t attrlen,
2822 bitmap[2] = {0},
2823 type;
2824 int status, fmode = 0;
2825
2826 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2827 goto xdr_error;
2828 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2829 goto xdr_error;
2830
2831 fattr->bitmap[0] = bitmap[0];
2832 fattr->bitmap[1] = bitmap[1];
2833
2834 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2835 goto xdr_error;
2836
2837
2838 if ((status = decode_attr_type(xdr, bitmap, &type)) != 0)
2839 goto xdr_error;
2840 fattr->type = nfs_type2fmt[type].nfs2type;
2841 fmode = nfs_type2fmt[type].mode;
2842
2843 if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0)
2844 goto xdr_error;
2845 if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0)
2846 goto xdr_error;
2847 if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid_u.nfs4)) != 0)
2848 goto xdr_error;
2849 if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0)
2850 goto xdr_error;
2851 if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0)
2852 goto xdr_error;
2853 fattr->mode |= fmode;
2854 if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0)
2855 goto xdr_error;
2856 if ((status = decode_attr_owner(xdr, bitmap, server->nfs4_state, &fattr->uid)) != 0)
2857 goto xdr_error;
2858 if ((status = decode_attr_group(xdr, bitmap, server->nfs4_state, &fattr->gid)) != 0)
2859 goto xdr_error;
2860 if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0)
2861 goto xdr_error;
2862 if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0)
2863 goto xdr_error;
2864 if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0)
2865 goto xdr_error;
2866 if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0)
2867 goto xdr_error;
2868 if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0)
2869 goto xdr_error;
33801147 2870 if ((status = verify_attr_len(xdr, savep, attrlen)) == 0)
1da177e4 2871 fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4;
1da177e4
LT		 2872xdr_error:
2873 if (status != 0)
2874 printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
2875 return status;
2876}
2877
2878
2879static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
2880{
2881 uint32_t *savep;
2882 uint32_t attrlen, bitmap[2];
2883 int status;
2884
2885 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2886 goto xdr_error;
2887 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2888 goto xdr_error;
2889 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2890 goto xdr_error;
2891
2892 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
2893
2894 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
2895 goto xdr_error;
2896 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
2897 goto xdr_error;
2898 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
2899 goto xdr_error;
2900 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
2901 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
2902 goto xdr_error;
2903 fsinfo->wtpref = fsinfo->wtmax;
2904
2905 status = verify_attr_len(xdr, savep, attrlen);
2906xdr_error:
2907 if (status != 0)
2908 printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
2909 return status;
2910}
2911
2912static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
2913{
2914 uint32_t *p;
2915 uint32_t len;
2916 int status;
2917
2918 status = decode_op_hdr(xdr, OP_GETFH);
2919 if (status)
2920 return status;
2921 /* Zero handle first to allow comparisons */
2922 memset(fh, 0, sizeof(*fh));
2923
2924 READ_BUF(4);
2925 READ32(len);
2926 if (len > NFS4_FHSIZE)
2927 return -EIO;
2928 fh->size = len;
2929 READ_BUF(len);
2930 COPYMEM(fh->data, len);
2931 return 0;
2932}
2933
2934static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2935{
2936 int status;
2937
2938 status = decode_op_hdr(xdr, OP_LINK);
2939 if (status)
2940 return status;
2941 return decode_change_info(xdr, cinfo);
2942}
2943
2944/*
2945 * We create the owner, so we know a proper owner.id length is 4.
2946 */
2947static int decode_lock_denied (struct xdr_stream *xdr, struct nfs_lock_denied *denied)
2948{
2949 uint32_t *p;
2950 uint32_t namelen;
2951
2952 READ_BUF(32);
2953 READ64(denied->offset);
2954 READ64(denied->length);
2955 READ32(denied->type);
2956 READ64(denied->owner.clientid);
2957 READ32(namelen);
2958 READ_BUF(namelen);
2959 if (namelen == 4)
2960 READ32(denied->owner.id);
2961 return -NFS4ERR_DENIED;
2962}
2963
2964static int decode_lock(struct xdr_stream *xdr, struct nfs_lockres *res)
2965{
2966 uint32_t *p;
2967 int status;
2968
2969 status = decode_op_hdr(xdr, OP_LOCK);
2970 if (status == 0) {
06735b34
TM		 2971 READ_BUF(sizeof(res->u.stateid.data));
2972 COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data));
1da177e4
LT		 2973 } else if (status == -NFS4ERR_DENIED)
2974 return decode_lock_denied(xdr, &res->u.denied);
2975 return status;
2976}
2977
2978static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockres *res)
2979{
2980 int status;
2981 status = decode_op_hdr(xdr, OP_LOCKT);
2982 if (status == -NFS4ERR_DENIED)
2983 return decode_lock_denied(xdr, &res->u.denied);
2984 return status;
2985}
2986
2987static int decode_locku(struct xdr_stream *xdr, struct nfs_lockres *res)
2988{
2989 uint32_t *p;
2990 int status;
2991
2992 status = decode_op_hdr(xdr, OP_LOCKU);
2993 if (status == 0) {
faf5f49c
TM		 2994 READ_BUF(sizeof(res->u.stateid.data));
2995 COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data));
1da177e4
LT		 2996 }
2997 return status;
2998}
2999
3000static int decode_lookup(struct xdr_stream *xdr)
3001{
3002 return decode_op_hdr(xdr, OP_LOOKUP);
3003}
3004
3005/* This is too sick! */
3006static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
3007{
3008 uint32_t *p;
3009 uint32_t limit_type, nblocks, blocksize;
3010
3011 READ_BUF(12);
3012 READ32(limit_type);
3013 switch (limit_type) {
3014 case 1:
3015 READ64(*maxsize);
3016 break;
3017 case 2:
3018 READ32(nblocks);
3019 READ32(blocksize);
3020 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
3021 }
3022 return 0;
3023}
3024
3025static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
3026{
3027 uint32_t *p;
3028 uint32_t delegation_type;
3029
3030 READ_BUF(4);
3031 READ32(delegation_type);
3032 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
3033 res->delegation_type = 0;
3034 return 0;
3035 }
3036 READ_BUF(20);
3037 COPYMEM(res->delegation.data, sizeof(res->delegation.data));
3038 READ32(res->do_recall);
3039 switch (delegation_type) {
3040 case NFS4_OPEN_DELEGATE_READ:
3041 res->delegation_type = FMODE_READ;
3042 break;
3043 case NFS4_OPEN_DELEGATE_WRITE:
3044 res->delegation_type = FMODE_WRITE|FMODE_READ;
3045 if (decode_space_limit(xdr, &res->maxsize) < 0)
3046 return -EIO;
3047 }
3048 return decode_ace(xdr, NULL, res->server->nfs4_state);
3049}
3050
3051static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
3052{
3053 uint32_t *p;
3054 uint32_t bmlen;
3055 int status;
3056
3057 status = decode_op_hdr(xdr, OP_OPEN);
3058 if (status)
3059 return status;
3060 READ_BUF(sizeof(res->stateid.data));
3061 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3062
3063 decode_change_info(xdr, &res->cinfo);
3064
3065 READ_BUF(8);
3066 READ32(res->rflags);
3067 READ32(bmlen);
3068 if (bmlen > 10)
3069 goto xdr_error;
3070
3071 READ_BUF(bmlen << 2);
3072 p += bmlen;
3073 return decode_delegation(xdr, res);
3074xdr_error:
3075 printk(KERN_NOTICE "%s: xdr error!\n", __FUNCTION__);
3076 return -EIO;
3077}
3078
3079static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
3080{
3081 uint32_t *p;
3082 int status;
3083
3084 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
3085 if (status)
3086 return status;
3087 READ_BUF(sizeof(res->stateid.data));
3088 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3089 return 0;
3090}
3091
3092static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
3093{
3094 uint32_t *p;
3095 int status;
3096
3097 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
3098 if (status)
3099 return status;
3100 READ_BUF(sizeof(res->stateid.data));
3101 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3102 return 0;
3103}
3104
3105static int decode_putfh(struct xdr_stream *xdr)
3106{
3107 return decode_op_hdr(xdr, OP_PUTFH);
3108}
3109
3110static int decode_putrootfh(struct xdr_stream *xdr)
3111{
3112 return decode_op_hdr(xdr, OP_PUTROOTFH);
3113}
3114
3115static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res)
3116{
3117 struct kvec *iov = req->rq_rcv_buf.head;
3118 uint32_t *p;
3119 uint32_t count, eof, recvd, hdrlen;
3120 int status;
3121
3122 status = decode_op_hdr(xdr, OP_READ);
3123 if (status)
3124 return status;
3125 READ_BUF(8);
3126 READ32(eof);
3127 READ32(count);
3128 hdrlen = (u8 *) p - (u8 *) iov->iov_base;
3129 recvd = req->rq_rcv_buf.len - hdrlen;
3130 if (count > recvd) {
3131 printk(KERN_WARNING "NFS: server cheating in read reply: "
3132 "count %u > recvd %u\n", count, recvd);
3133 count = recvd;
3134 eof = 0;
3135 }
3136 xdr_read_pages(xdr, count);
3137 res->eof = eof;
3138 res->count = count;
3139 return 0;
3140}
3141
3142static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
3143{
3144 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
3145 struct page *page = *rcvbuf->pages;
3146 struct kvec *iov = rcvbuf->head;
3147 unsigned int nr, pglen = rcvbuf->page_len;
3148 uint32_t *end, *entry, *p, *kaddr;
3149 uint32_t len, attrlen;
3150 int hdrlen, recvd, status;
3151
3152 status = decode_op_hdr(xdr, OP_READDIR);
3153 if (status)
3154 return status;
3155 READ_BUF(8);
3156 COPYMEM(readdir->verifier.data, 8);
eadf4598
TM		 3157 dprintk("%s: verifier = 0x%x%x\n",
3158 __FUNCTION__,
3159 ((u32 *)readdir->verifier.data)[0],
3160 ((u32 *)readdir->verifier.data)[1]);
3161
1da177e4
LT		 3162
3163 hdrlen = (char *) p - (char *) iov->iov_base;
3164 recvd = rcvbuf->len - hdrlen;
3165 if (pglen > recvd)
3166 pglen = recvd;
3167 xdr_read_pages(xdr, pglen);
3168
3169 BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE);
3170 kaddr = p = (uint32_t *) kmap_atomic(page, KM_USER0);
3171 end = (uint32_t *) ((char *)p + pglen + readdir->pgbase);
3172 entry = p;
3173 for (nr = 0; *p++; nr++) {
3174 if (p + 3 > end)
3175 goto short_pkt;
eadf4598 3176 dprintk("cookie = %Lu, ", *((unsigned long long *)p));
1da177e4
LT		 3177 p += 2; /* cookie */
3178 len = ntohl(*p++); /* filename length */
3179 if (len > NFS4_MAXNAMLEN) {
3180 printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len);
3181 goto err_unmap;
3182 }
eadf4598 3183 dprintk("filename = %*s\n", len, (char *)p);
1da177e4
LT		 3184 p += XDR_QUADLEN(len);
3185 if (p + 1 > end)
3186 goto short_pkt;
3187 len = ntohl(*p++); /* bitmap length */
3188 p += len;
3189 if (p + 1 > end)
3190 goto short_pkt;
3191 attrlen = XDR_QUADLEN(ntohl(*p++));
3192 p += attrlen; /* attributes */
3193 if (p + 2 > end)
3194 goto short_pkt;
3195 entry = p;
3196 }
3197 if (!nr && (entry[0] != 0 || entry[1] == 0))
3198 goto short_pkt;
3199out:
3200 kunmap_atomic(kaddr, KM_USER0);
3201 return 0;
3202short_pkt:
eadf4598 3203 dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr);
1da177e4
LT		 3204 entry[0] = entry[1] = 0;
3205 /* truncate listing ? */
3206 if (!nr) {
3207 printk(KERN_NOTICE "NFS: readdir reply truncated!\n");
3208 entry[1] = 1;
3209 }
3210 goto out;
3211err_unmap:
3212 kunmap_atomic(kaddr, KM_USER0);
3213 return -errno_NFSERR_IO;
3214}
3215
3216static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
3217{
3218 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
3219 struct kvec *iov = rcvbuf->head;
3220 int hdrlen, len, recvd;
3221 uint32_t *p;
3222 char *kaddr;
3223 int status;
3224
3225 status = decode_op_hdr(xdr, OP_READLINK);
3226 if (status)
3227 return status;
3228
3229 /* Convert length of symlink */
3230 READ_BUF(4);
3231 READ32(len);
3232 if (len >= rcvbuf->page_len || len <= 0) {
3233 dprintk(KERN_WARNING "nfs: server returned giant symlink!\n");
3234 return -ENAMETOOLONG;
3235 }
3236 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
3237 recvd = req->rq_rcv_buf.len - hdrlen;
3238 if (recvd < len) {
3239 printk(KERN_WARNING "NFS: server cheating in readlink reply: "
3240 "count %u > recvd %u\n", len, recvd);
3241 return -EIO;
3242 }
3243 xdr_read_pages(xdr, len);
3244 /*
3245 * The XDR encode routine has set things up so that
3246 * the link text will be copied directly into the
3247 * buffer. We just have to do overflow-checking,
3248 * and and null-terminate the text (the VFS expects
3249 * null-termination).
3250 */
3251 kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0);
3252 kaddr[len+rcvbuf->page_base] = '\0';
3253 kunmap_atomic(kaddr, KM_USER0);
3254 return 0;
3255}
3256
3257static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3258{
3259 int status;
3260
3261 status = decode_op_hdr(xdr, OP_REMOVE);
3262 if (status)
3263 goto out;
3264 status = decode_change_info(xdr, cinfo);
3265out:
3266 return status;
3267}
3268
3269static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
3270 struct nfs4_change_info *new_cinfo)
3271{
3272 int status;
3273
3274 status = decode_op_hdr(xdr, OP_RENAME);
3275 if (status)
3276 goto out;
3277 if ((status = decode_change_info(xdr, old_cinfo)))
3278 goto out;
3279 status = decode_change_info(xdr, new_cinfo);
3280out:
3281 return status;
3282}
3283
3284static int decode_renew(struct xdr_stream *xdr)
3285{
3286 return decode_op_hdr(xdr, OP_RENEW);
3287}
3288
56ae19f3
TM		 3289static int
3290decode_restorefh(struct xdr_stream *xdr)
3291{
3292 return decode_op_hdr(xdr, OP_RESTOREFH);
3293}
3294
029d105e
BF		 3295static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
3296 size_t *acl_len)
3297{
3298 uint32_t *savep;
3299 uint32_t attrlen,
3300 bitmap[2] = {0};
3301 struct kvec *iov = req->rq_rcv_buf.head;
3302 int status;
3303
3304 *acl_len = 0;
3305 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3306 goto out;
3307 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3308 goto out;
3309 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3310 goto out;
3311
3312 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
3313 return -EIO;
3314 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
3315 int hdrlen, recvd;
3316
3317 /* We ignore &savep and don't do consistency checks on
3318 * the attr length. Let userspace figure it out.... */
3319 hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base;
3320 recvd = req->rq_rcv_buf.len - hdrlen;
3321 if (attrlen > recvd) {
3322 printk(KERN_WARNING "NFS: server cheating in getattr"
3323 " acl reply: attrlen %u > recvd %u\n",
3324 attrlen, recvd);
3325 return -EINVAL;
3326 }
3327 if (attrlen <= *acl_len)
3328 xdr_read_pages(xdr, attrlen);
3329 *acl_len = attrlen;
8c233cf9
BF		 3330 } else
3331 status = -EOPNOTSUPP;
029d105e
BF		 3332
3333out:
3334 return status;
3335}
3336
1da177e4
LT		 3337static int
3338decode_savefh(struct xdr_stream *xdr)
3339{
3340 return decode_op_hdr(xdr, OP_SAVEFH);
3341}
3342
3343static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res)
3344{
3345 uint32_t *p;
3346 uint32_t bmlen;
3347 int status;
3348
3349
3350 status = decode_op_hdr(xdr, OP_SETATTR);
3351 if (status)
3352 return status;
3353 READ_BUF(4);
3354 READ32(bmlen);
3355 READ_BUF(bmlen << 2);
3356 return 0;
3357}
3358
3359static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_client *clp)
3360{
3361 uint32_t *p;
3362 uint32_t opnum;
3363 int32_t nfserr;
3364
3365 READ_BUF(8);
3366 READ32(opnum);
3367 if (opnum != OP_SETCLIENTID) {
3368 printk(KERN_NOTICE
3369 "nfs4_decode_setclientid: Server returned operation"
3370 " %d\n", opnum);
3371 return -EIO;
3372 }
3373 READ32(nfserr);
3374 if (nfserr == NFS_OK) {
3375 READ_BUF(8 + sizeof(clp->cl_confirm.data));
3376 READ64(clp->cl_clientid);
3377 COPYMEM(clp->cl_confirm.data, sizeof(clp->cl_confirm.data));
3378 } else if (nfserr == NFSERR_CLID_INUSE) {
3379 uint32_t len;
3380
3381 /* skip netid string */
3382 READ_BUF(4);
3383 READ32(len);
3384 READ_BUF(len);
3385
3386 /* skip uaddr string */
3387 READ_BUF(4);
3388 READ32(len);
3389 READ_BUF(len);
3390 return -NFSERR_CLID_INUSE;
3391 } else
3392 return -nfs_stat_to_errno(nfserr);
3393
3394 return 0;
3395}
3396
3397static int decode_setclientid_confirm(struct xdr_stream *xdr)
3398{
3399 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
3400}
3401
3402static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
3403{
3404 uint32_t *p;
3405 int status;
3406
3407 status = decode_op_hdr(xdr, OP_WRITE);
3408 if (status)
3409 return status;
3410
3411 READ_BUF(16);
3412 READ32(res->count);
3413 READ32(res->verf->committed);
3414 COPYMEM(res->verf->verifier, 8);
3415 return 0;
3416}
3417
3418static int decode_delegreturn(struct xdr_stream *xdr)
3419{
3420 return decode_op_hdr(xdr, OP_DELEGRETURN);
3421}
3422
3423/*
3424 * Decode OPEN_DOWNGRADE response
3425 */
3426static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res)
3427{
3428 struct xdr_stream xdr;
3429 struct compound_hdr hdr;
3430 int status;
3431
3432 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3433 status = decode_compound_hdr(&xdr, &hdr);
3434 if (status)
3435 goto out;
3436 status = decode_putfh(&xdr);
3437 if (status)
3438 goto out;
3439 status = decode_open_downgrade(&xdr, res);
516a6af6
TM		 3440 if (status != 0)
3441 goto out;
3442 decode_getfattr(&xdr, res->fattr, res->server);
1da177e4
LT		 3443out:
3444 return status;
3445}
3446
3447/*
3448 * END OF "GENERIC" DECODE ROUTINES.
3449 */
3450
3451/*
3452 * Decode ACCESS response
3453 */
3454static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_accessres *res)
3455{
3456 struct xdr_stream xdr;
3457 struct compound_hdr hdr;
3458 int status;
3459
3460 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3461 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3462 goto out;
3463 if ((status = decode_putfh(&xdr)) == 0)
3464 status = decode_access(&xdr, res);
3465out:
3466 return status;
3467}
3468
3469/*
3470 * Decode LOOKUP response
3471 */
3472static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res)
3473{
3474 struct xdr_stream xdr;
3475 struct compound_hdr hdr;
3476 int status;
3477
3478 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3479 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3480 goto out;
3481 if ((status = decode_putfh(&xdr)) != 0)
3482 goto out;
3483 if ((status = decode_lookup(&xdr)) != 0)
3484 goto out;
3485 if ((status = decode_getfh(&xdr, res->fh)) != 0)
3486 goto out;
3487 status = decode_getfattr(&xdr, res->fattr, res->server);
3488out:
3489 return status;
3490}
3491
3492/*
3493 * Decode LOOKUP_ROOT response
3494 */
3495static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res)
3496{
3497 struct xdr_stream xdr;
3498 struct compound_hdr hdr;
3499 int status;
3500
3501 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3502 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3503 goto out;
3504 if ((status = decode_putrootfh(&xdr)) != 0)
3505 goto out;
3506 if ((status = decode_getfh(&xdr, res->fh)) == 0)
3507 status = decode_getfattr(&xdr, res->fattr, res->server);
3508out:
3509 return status;
3510}
3511
3512/*
3513 * Decode REMOVE response
3514 */
3515static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_change_info *cinfo)
3516{
3517 struct xdr_stream xdr;
3518 struct compound_hdr hdr;
3519 int status;
3520
3521 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3522 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3523 goto out;
3524 if ((status = decode_putfh(&xdr)) == 0)
3525 status = decode_remove(&xdr, cinfo);
3526out:
3527 return status;
3528}
3529
3530/*
3531 * Decode RENAME response
3532 */
3533static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_rename_res *res)
3534{
3535 struct xdr_stream xdr;
3536 struct compound_hdr hdr;
3537 int status;
3538
3539 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3540 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3541 goto out;
3542 if ((status = decode_putfh(&xdr)) != 0)
3543 goto out;
3544 if ((status = decode_savefh(&xdr)) != 0)
3545 goto out;
3546 if ((status = decode_putfh(&xdr)) != 0)
3547 goto out;
6caf2c82
TM		 3548 if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0)
3549 goto out;
3550 /* Current FH is target directory */
3551 if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0)
3552 goto out;
3553 if ((status = decode_restorefh(&xdr)) != 0)
3554 goto out;
3555 decode_getfattr(&xdr, res->old_fattr, res->server);
1da177e4
LT		 3556out:
3557 return status;
3558}
3559
3560/*
3561 * Decode LINK response
3562 */
91ba2eee 3563static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_link_res *res)
1da177e4
LT		 3564{
3565 struct xdr_stream xdr;
3566 struct compound_hdr hdr;
3567 int status;
3568
3569 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3570 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3571 goto out;
3572 if ((status = decode_putfh(&xdr)) != 0)
3573 goto out;
3574 if ((status = decode_savefh(&xdr)) != 0)
3575 goto out;
3576 if ((status = decode_putfh(&xdr)) != 0)
3577 goto out;
91ba2eee
TM		 3578 if ((status = decode_link(&xdr, &res->cinfo)) != 0)
3579 goto out;
3580 /*
3581 * Note order: OP_LINK leaves the directory as the current
3582 * filehandle.
3583 */
3584 if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0)
3585 goto out;
3586 if ((status = decode_restorefh(&xdr)) != 0)
3587 goto out;
3588 decode_getfattr(&xdr, res->fattr, res->server);
1da177e4
LT		 3589out:
3590 return status;
3591}
3592
3593/*
3594 * Decode CREATE response
3595 */
3596static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res)
3597{
3598 struct xdr_stream xdr;
3599 struct compound_hdr hdr;
3600 int status;
3601
3602 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3603 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3604 goto out;
3605 if ((status = decode_putfh(&xdr)) != 0)
3606 goto out;
56ae19f3
TM		 3607 if ((status = decode_savefh(&xdr)) != 0)
3608 goto out;
1da177e4
LT		 3609 if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0)
3610 goto out;
3611 if ((status = decode_getfh(&xdr, res->fh)) != 0)
3612 goto out;
56ae19f3
TM		 3613 if (decode_getfattr(&xdr, res->fattr, res->server) != 0)
3614 goto out;
3615 if ((status = decode_restorefh(&xdr)) != 0)
3616 goto out;
3617 decode_getfattr(&xdr, res->dir_fattr, res->server);
1da177e4
LT		 3618out:
3619 return status;
3620}
3621
3622/*
3623 * Decode SYMLINK response
3624 */
3625static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res)
3626{
3627 return nfs4_xdr_dec_create(rqstp, p, res);
3628}
3629
3630/*
3631 * Decode GETATTR response
3632 */
3633static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_getattr_res *res)
3634{
3635 struct xdr_stream xdr;
3636 struct compound_hdr hdr;
3637 int status;
3638
3639 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3640 status = decode_compound_hdr(&xdr, &hdr);
3641 if (status)
3642 goto out;
3643 status = decode_putfh(&xdr);
3644 if (status)
3645 goto out;
3646 status = decode_getfattr(&xdr, res->fattr, res->server);
3647out:
3648 return status;
3649
3650}
3651
23ec6965
BF		 3652/*
3653 * Encode an SETACL request
3654 */
3655static int
3656nfs4_xdr_enc_setacl(struct rpc_rqst *req, uint32_t *p, struct nfs_setaclargs *args)
3657{
3658 struct xdr_stream xdr;
3659 struct compound_hdr hdr = {
3660 .nops = 2,
3661 };
3662 int status;
3663
3664 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
3665 encode_compound_hdr(&xdr, &hdr);
3666 status = encode_putfh(&xdr, args->fh);
3667 if (status)
3668 goto out;
3669 status = encode_setacl(&xdr, args);
3670out:
3671 return status;
3672}
3673/*
3674 * Decode SETACL response
3675 */
3676static int
3677nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, uint32_t *p, void *res)
3678{
3679 struct xdr_stream xdr;
3680 struct compound_hdr hdr;
3681 int status;
3682
3683 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3684 status = decode_compound_hdr(&xdr, &hdr);
3685 if (status)
3686 goto out;
3687 status = decode_putfh(&xdr);
3688 if (status)
3689 goto out;
3690 status = decode_setattr(&xdr, res);
3691out:
3692 return status;
3693}
1da177e4 3694
029d105e
BF		 3695/*
3696 * Decode GETACL response
3697 */
3698static int
3699nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, uint32_t *p, size_t *acl_len)
3700{
3701 struct xdr_stream xdr;
3702 struct compound_hdr hdr;
3703 int status;
3704
3705 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3706 status = decode_compound_hdr(&xdr, &hdr);
3707 if (status)
3708 goto out;
3709 status = decode_putfh(&xdr);
3710 if (status)
3711 goto out;
3712 status = decode_getacl(&xdr, rqstp, acl_len);
3713
3714out:
3715 return status;
3716}
3717
1da177e4
LT		 3718/*
3719 * Decode CLOSE response
3720 */
3721static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res)
3722{
3723 struct xdr_stream xdr;
3724 struct compound_hdr hdr;
3725 int status;
3726
3727 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3728 status = decode_compound_hdr(&xdr, &hdr);
3729 if (status)
3730 goto out;
3731 status = decode_putfh(&xdr);
3732 if (status)
3733 goto out;
3734 status = decode_close(&xdr, res);
516a6af6
TM		 3735 if (status != 0)
3736 goto out;
3737 /*
3738 * Note: Server may do delete on close for this file
3739 * in which case the getattr call will fail with
3740 * an ESTALE error. Shouldn't be a problem,
3741 * though, since fattr->valid will remain unset.
3742 */
3743 decode_getfattr(&xdr, res->fattr, res->server);
1da177e4
LT		 3744out:
3745 return status;
3746}
3747
3748/*
3749 * Decode OPEN response
3750 */
3751static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res)
3752{
3753 struct xdr_stream xdr;
3754 struct compound_hdr hdr;
3755 int status;
3756
3757 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3758 status = decode_compound_hdr(&xdr, &hdr);
3759 if (status)
3760 goto out;
3761 status = decode_putfh(&xdr);
3762 if (status)
3763 goto out;
56ae19f3
TM		 3764 status = decode_savefh(&xdr);
3765 if (status)
3766 goto out;
1da177e4
LT		 3767 status = decode_open(&xdr, res);
3768 if (status)
3769 goto out;
3770 status = decode_getfh(&xdr, &res->fh);
3771 if (status)
3772 goto out;
56ae19f3
TM		 3773 if (decode_getfattr(&xdr, res->f_attr, res->server) != 0)
3774 goto out;
3775 if ((status = decode_restorefh(&xdr)) != 0)
3776 goto out;
3777 decode_getfattr(&xdr, res->dir_attr, res->server);
1da177e4
LT		 3778out:
3779 return status;
3780}
3781
3782/*
3783 * Decode OPEN_CONFIRM response
3784 */
3785static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_open_confirmres *res)
3786{
3787 struct xdr_stream xdr;
3788 struct compound_hdr hdr;
3789 int status;
3790
3791 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3792 status = decode_compound_hdr(&xdr, &hdr);
3793 if (status)
3794 goto out;
3795 status = decode_putfh(&xdr);
3796 if (status)
3797 goto out;
3798 status = decode_open_confirm(&xdr, res);
3799out:
3800 return status;
3801}
3802
3803/*
3804 * Decode OPEN response
3805 */
3806static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res)
3807{
3808 struct xdr_stream xdr;
3809 struct compound_hdr hdr;
3810 int status;
3811
3812 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3813 status = decode_compound_hdr(&xdr, &hdr);
3814 if (status)
3815 goto out;
3816 status = decode_putfh(&xdr);
3817 if (status)
3818 goto out;
3819 status = decode_open(&xdr, res);
3820out:
3821 return status;
3822}
3823
3824/*
3825 * Decode SETATTR response
3826 */
3827static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_setattrres *res)
3828{
3829 struct xdr_stream xdr;
3830 struct compound_hdr hdr;
3831 int status;
3832
3833 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3834 status = decode_compound_hdr(&xdr, &hdr);
3835 if (status)
3836 goto out;
3837 status = decode_putfh(&xdr);
3838 if (status)
3839 goto out;
3840 status = decode_setattr(&xdr, res);
3841 if (status)
3842 goto out;
3843 status = decode_getfattr(&xdr, res->fattr, res->server);
3844 if (status == NFS4ERR_DELAY)
3845 status = 0;
3846out:
3847 return status;
3848}
3849
3850/*
3851 * Decode LOCK response
3852 */
3853static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res)
3854{
3855 struct xdr_stream xdr;
3856 struct compound_hdr hdr;
3857 int status;
3858
3859 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3860 status = decode_compound_hdr(&xdr, &hdr);
3861 if (status)
3862 goto out;
3863 status = decode_putfh(&xdr);
3864 if (status)
3865 goto out;
3866 status = decode_lock(&xdr, res);
3867out:
3868 return status;
3869}
3870
3871/*
3872 * Decode LOCKT response
3873 */
3874static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res)
3875{
3876 struct xdr_stream xdr;
3877 struct compound_hdr hdr;
3878 int status;
3879
3880 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3881 status = decode_compound_hdr(&xdr, &hdr);
3882 if (status)
3883 goto out;
3884 status = decode_putfh(&xdr);
3885 if (status)
3886 goto out;
3887 status = decode_lockt(&xdr, res);
3888out:
3889 return status;
3890}
3891
3892/*
3893 * Decode LOCKU response
3894 */
3895static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res)
3896{
3897 struct xdr_stream xdr;
3898 struct compound_hdr hdr;
3899 int status;
3900
3901 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3902 status = decode_compound_hdr(&xdr, &hdr);
3903 if (status)
3904 goto out;
3905 status = decode_putfh(&xdr);
3906 if (status)
3907 goto out;
3908 status = decode_locku(&xdr, res);
3909out:
3910 return status;
3911}
3912
3913/*
3914 * Decode READLINK response
3915 */
3916static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, uint32_t *p, void *res)
3917{
3918 struct xdr_stream xdr;
3919 struct compound_hdr hdr;
3920 int status;
3921
3922 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3923 status = decode_compound_hdr(&xdr, &hdr);
3924 if (status)
3925 goto out;
3926 status = decode_putfh(&xdr);
3927 if (status)
3928 goto out;
3929 status = decode_readlink(&xdr, rqstp);
3930out:
3931 return status;
3932}
3933
3934/*
3935 * Decode READDIR response
3936 */
3937static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_readdir_res *res)
3938{
3939 struct xdr_stream xdr;
3940 struct compound_hdr hdr;
3941 int status;
3942
3943 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3944 status = decode_compound_hdr(&xdr, &hdr);
3945 if (status)
3946 goto out;
3947 status = decode_putfh(&xdr);
3948 if (status)
3949 goto out;
3950 status = decode_readdir(&xdr, rqstp, res);
3951out:
3952 return status;
3953}
3954
3955/*
3956 * Decode Read response
3957 */
3958static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_readres *res)
3959{
3960 struct xdr_stream xdr;
3961 struct compound_hdr hdr;
3962 int status;
3963
3964 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3965 status = decode_compound_hdr(&xdr, &hdr);
3966 if (status)
3967 goto out;
3968 status = decode_putfh(&xdr);
3969 if (status)
3970 goto out;
3971 status = decode_read(&xdr, rqstp, res);
3972 if (!status)
3973 status = res->count;
3974out:
3975 return status;
3976}
3977
3978/*
3979 * Decode WRITE response
3980 */
3981static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res)
3982{
3983 struct xdr_stream xdr;
3984 struct compound_hdr hdr;
3985 int status;
3986
3987 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3988 status = decode_compound_hdr(&xdr, &hdr);
3989 if (status)
3990 goto out;
3991 status = decode_putfh(&xdr);
3992 if (status)
3993 goto out;
3994 status = decode_write(&xdr, res);
3995 if (!status)
3996 status = res->count;
3997out:
3998 return status;
3999}
4000
4001/*
4002 * Decode COMMIT response
4003 */
4004static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res)
4005{
4006 struct xdr_stream xdr;
4007 struct compound_hdr hdr;
4008 int status;
4009
4010 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4011 status = decode_compound_hdr(&xdr, &hdr);
4012 if (status)
4013 goto out;
4014 status = decode_putfh(&xdr);
4015 if (status)
4016 goto out;
4017 status = decode_commit(&xdr, res);
4018out:
4019 return status;
4020}
4021
4022/*
4023 * FSINFO request
4024 */
4025static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo)
4026{
4027 struct xdr_stream xdr;
4028 struct compound_hdr hdr;
4029 int status;
4030
4031 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4032 status = decode_compound_hdr(&xdr, &hdr);
4033 if (!status)
4034 status = decode_putfh(&xdr);
4035 if (!status)
4036 status = decode_fsinfo(&xdr, fsinfo);
4037 if (!status)
4038 status = -nfs_stat_to_errno(hdr.status);
4039 return status;
4040}
4041
4042/*
4043 * PATHCONF request
4044 */
4045static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, uint32_t *p, struct nfs_pathconf *pathconf)
4046{
4047 struct xdr_stream xdr;
4048 struct compound_hdr hdr;
4049 int status;
4050
4051 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4052 status = decode_compound_hdr(&xdr, &hdr);
4053 if (!status)
4054 status = decode_putfh(&xdr);
4055 if (!status)
4056 status = decode_pathconf(&xdr, pathconf);
4057 return status;
4058}
4059
4060/*
4061 * STATFS request
4062 */
4063static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, uint32_t *p, struct nfs_fsstat *fsstat)
4064{
4065 struct xdr_stream xdr;
4066 struct compound_hdr hdr;
4067 int status;
4068
4069 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4070 status = decode_compound_hdr(&xdr, &hdr);
4071 if (!status)
4072 status = decode_putfh(&xdr);
4073 if (!status)
4074 status = decode_statfs(&xdr, fsstat);
4075 return status;
4076}
4077
4078/*
4079 * GETATTR_BITMAP request
4080 */
4081static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, uint32_t *p, struct nfs4_server_caps_res *res)
4082{
4083 struct xdr_stream xdr;
4084 struct compound_hdr hdr;
4085 int status;
4086
4087 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4088 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
4089 goto out;
4090 if ((status = decode_putfh(&xdr)) != 0)
4091 goto out;
4092 status = decode_server_caps(&xdr, res);
4093out:
4094 return status;
4095}
4096
4097/*
4098 * Decode RENEW response
4099 */
4100static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, uint32_t *p, void *dummy)
4101{
4102 struct xdr_stream xdr;
4103 struct compound_hdr hdr;
4104 int status;
4105
4106 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4107 status = decode_compound_hdr(&xdr, &hdr);
4108 if (!status)
4109 status = decode_renew(&xdr);
4110 return status;
4111}
4112
4113/*
4114 * a SETCLIENTID request
4115 */
4116static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, uint32_t *p,
4117 struct nfs4_client *clp)
4118{
4119 struct xdr_stream xdr;
4120 struct compound_hdr hdr;
4121 int status;
4122
4123 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4124 status = decode_compound_hdr(&xdr, &hdr);
4125 if (!status)
4126 status = decode_setclientid(&xdr, clp);
4127 if (!status)
4128 status = -nfs_stat_to_errno(hdr.status);
4129 return status;
4130}
4131
4132/*
4133 * a SETCLIENTID_CONFIRM request
4134 */
4135static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo)
4136{
4137 struct xdr_stream xdr;
4138 struct compound_hdr hdr;
4139 int status;
4140
4141 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4142 status = decode_compound_hdr(&xdr, &hdr);
4143 if (!status)
4144 status = decode_setclientid_confirm(&xdr);
4145 if (!status)
4146 status = decode_putrootfh(&xdr);
4147 if (!status)
4148 status = decode_fsinfo(&xdr, fsinfo);
4149 if (!status)
4150 status = -nfs_stat_to_errno(hdr.status);
4151 return status;
4152}
4153
4154/*
4155 * DELEGRETURN request
4156 */
4157static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, void *dummy)
4158{
4159 struct xdr_stream xdr;
4160 struct compound_hdr hdr;
4161 int status;
4162
4163 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4164 status = decode_compound_hdr(&xdr, &hdr);
4165 if (status == 0) {
4166 status = decode_putfh(&xdr);
4167 if (status == 0)
4168 status = decode_delegreturn(&xdr);
4169 }
4170 return status;
4171}
4172
4173uint32_t *nfs4_decode_dirent(uint32_t *p, struct nfs_entry *entry, int plus)
4174{
4175 uint32_t bitmap[2] = {0};
4176 uint32_t len;
4177
4178 if (!*p++) {
4179 if (!*p)
4180 return ERR_PTR(-EAGAIN);
4181 entry->eof = 1;
4182 return ERR_PTR(-EBADCOOKIE);
4183 }
4184
4185 entry->prev_cookie = entry->cookie;
4186 p = xdr_decode_hyper(p, &entry->cookie);
4187 entry->len = ntohl(*p++);
4188 entry->name = (const char *) p;
4189 p += XDR_QUADLEN(entry->len);
4190
4191 /*
4192 * In case the server doesn't return an inode number,
4193 * we fake one here. (We don't use inode number 0,
4194 * since glibc seems to choke on it...)
4195 */
4196 entry->ino = 1;
4197
4198 len = ntohl(*p++); /* bitmap length */
4199 if (len-- > 0) {
4200 bitmap[0] = ntohl(*p++);
4201 if (len-- > 0) {
4202 bitmap[1] = ntohl(*p++);
4203 p += len;
4204 }
4205 }
4206 len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */
4207 if (len > 0) {
97d312d0
MN		 4208 if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) {
4209 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
4210 /* Ignore the return value of rdattr_error for now */
4211 p++;
4212 len--;
4213 }
1da177e4
LT		 4214 if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID)
4215 xdr_decode_hyper(p, &entry->ino);
4216 else if (bitmap[0] == FATTR4_WORD0_FILEID)
4217 xdr_decode_hyper(p, &entry->ino);
4218 p += len;
4219 }
4220
4221 entry->eof = !p[0] && p[1];
4222 return p;
4223}
4224
4225/*
4226 * We need to translate between nfs status return values and
4227 * the local errno values which may not be the same.
4228 */
4229static struct {
4230 int stat;
4231 int errno;
4232} nfs_errtbl[] = {
4233 { NFS4_OK, 0 },
4234 { NFS4ERR_PERM, EPERM },
4235 { NFS4ERR_NOENT, ENOENT },
4236 { NFS4ERR_IO, errno_NFSERR_IO },
4237 { NFS4ERR_NXIO, ENXIO },
4238 { NFS4ERR_ACCESS, EACCES },
4239 { NFS4ERR_EXIST, EEXIST },
4240 { NFS4ERR_XDEV, EXDEV },
4241 { NFS4ERR_NOTDIR, ENOTDIR },
4242 { NFS4ERR_ISDIR, EISDIR },
4243 { NFS4ERR_INVAL, EINVAL },
4244 { NFS4ERR_FBIG, EFBIG },
4245 { NFS4ERR_NOSPC, ENOSPC },
4246 { NFS4ERR_ROFS, EROFS },
4247 { NFS4ERR_MLINK, EMLINK },
4248 { NFS4ERR_NAMETOOLONG, ENAMETOOLONG },
4249 { NFS4ERR_NOTEMPTY, ENOTEMPTY },
4250 { NFS4ERR_DQUOT, EDQUOT },
4251 { NFS4ERR_STALE, ESTALE },
4252 { NFS4ERR_BADHANDLE, EBADHANDLE },
6ebf3656
MN		 4253 { NFS4ERR_BADOWNER, EINVAL },
4254 { NFS4ERR_BADNAME, EINVAL },
1da177e4
LT		 4255 { NFS4ERR_BAD_COOKIE, EBADCOOKIE },
4256 { NFS4ERR_NOTSUPP, ENOTSUPP },
4257 { NFS4ERR_TOOSMALL, ETOOSMALL },
4258 { NFS4ERR_SERVERFAULT, ESERVERFAULT },
4259 { NFS4ERR_BADTYPE, EBADTYPE },
4260 { NFS4ERR_LOCKED, EAGAIN },
4261 { NFS4ERR_RESOURCE, EREMOTEIO },
4262 { NFS4ERR_SYMLINK, ELOOP },
4263 { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP },
4264 { NFS4ERR_DEADLOCK, EDEADLK },
4265 { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs
4266 * to be handled by a
4267 * middle-layer.
4268 */
4269 { -1, EIO }
4270};
4271
4272/*
4273 * Convert an NFS error code to a local one.
4274 * This one is used jointly by NFSv2 and NFSv3.
4275 */
4276static int
4277nfs_stat_to_errno(int stat)
4278{
4279 int i;
4280 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
4281 if (nfs_errtbl[i].stat == stat)
4282 return nfs_errtbl[i].errno;
4283 }
4284 if (stat <= 10000 || stat > 10100) {
4285 /* The server is looney tunes. */
4286 return ESERVERFAULT;
4287 }
4288 /* If we cannot translate the error, the recovery routines should
4289 * handle it.
4290 * Note: remaining NFSv4 error codes have values > 10000, so should
4291 * not conflict with native Linux error codes.
4292 */
4293 return stat;
4294}
4295
4296#ifndef MAX
4297# define MAX(a, b) (((a) > (b))? (a) : (b))
4298#endif
4299
4300#define PROC(proc, argtype, restype) \
4301[NFSPROC4_CLNT_##proc] = { \
4302 .p_proc = NFSPROC4_COMPOUND, \
4303 .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \
4304 .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \
4305 .p_bufsiz = MAX(NFS4_##argtype##_sz,NFS4_##restype##_sz) << 2, \
4306 }
4307
4308struct rpc_procinfo nfs4_procedures[] = {
4309 PROC(READ, enc_read, dec_read),
4310 PROC(WRITE, enc_write, dec_write),
4311 PROC(COMMIT, enc_commit, dec_commit),
4312 PROC(OPEN, enc_open, dec_open),
4313 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
4314 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
4315 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
4316 PROC(CLOSE, enc_close, dec_close),
4317 PROC(SETATTR, enc_setattr, dec_setattr),
4318 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
4319 PROC(RENEW, enc_renew, dec_renew),
4320 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
4321 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
4322 PROC(LOCK, enc_lock, dec_lock),
4323 PROC(LOCKT, enc_lockt, dec_lockt),
4324 PROC(LOCKU, enc_locku, dec_locku),
4325 PROC(ACCESS, enc_access, dec_access),
4326 PROC(GETATTR, enc_getattr, dec_getattr),
4327 PROC(LOOKUP, enc_lookup, dec_lookup),
4328 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
4329 PROC(REMOVE, enc_remove, dec_remove),
4330 PROC(RENAME, enc_rename, dec_rename),
4331 PROC(LINK, enc_link, dec_link),
4332 PROC(SYMLINK, enc_symlink, dec_symlink),
4333 PROC(CREATE, enc_create, dec_create),
4334 PROC(PATHCONF, enc_pathconf, dec_pathconf),
4335 PROC(STATFS, enc_statfs, dec_statfs),
4336 PROC(READLINK, enc_readlink, dec_readlink),
4337 PROC(READDIR, enc_readdir, dec_readdir),
4338 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
4339 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
029d105e 4340 PROC(GETACL, enc_getacl, dec_getacl),
23ec6965 4341 PROC(SETACL, enc_setacl, dec_setacl),
1da177e4
LT		 4342};
4343
4344struct rpc_version nfs_version4 = {
4345 .number = 4,
4346 .nrprocs = sizeof(nfs4_procedures)/sizeof(nfs4_procedures[0]),
4347 .procs = nfs4_procedures
4348};
4349
4350/*
4351 * Local variables:
4352 * c-basic-offset: 8
4353 * End:
4354 */
Linux kernel - Deliverables
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