4 * Client-side XDR for NFSv4.
6 * Copyright (c) 2002 The Regents of the University of Michigan.
9 * Kendrick Smith <kmsmith@umich.edu>
10 * Andy Adamson <andros@umich.edu>
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
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.
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.
38 #include <linux/param.h>
39 #include <linux/time.h>
41 #include <linux/slab.h>
42 #include <linux/utsname.h>
43 #include <linux/errno.h>
44 #include <linux/string.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>
56 #define NFSDBG_FACILITY NFSDBG_XDR
58 /* Mapping from NFS error code to "errno" error code. */
59 #define errno_NFSERR_IO EIO
61 static int nfs_stat_to_errno(int);
63 /* NFSv4 COMPOUND tags are only wanted for debugging purposes */
65 #define NFS4_MAXTAGLEN 20
67 #define NFS4_MAXTAGLEN 0
70 /* lock,open owner id:
71 * we currently use size 1 (u32) out of (NFS4_OPAQUE_LIMIT >> 2)
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 + \
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))
86 #define nfs4_fattr_bitmap_maxsz 3
87 #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
88 #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
89 #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
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)
96 #define encode_savefh_maxsz (op_encode_hdr_maxsz)
97 #define decode_savefh_maxsz (op_decode_hdr_maxsz)
98 #define encode_restorefh_maxsz (op_encode_hdr_maxsz)
99 #define decode_restorefh_maxsz (op_decode_hdr_maxsz)
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*/ + \
109 6 + (NFS4_VERIFIER_SIZE >> 2))
110 #define decode_setclientid_maxsz \
111 (op_decode_hdr_maxsz + \
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 + \
123 #define encode_rename_maxsz (op_encode_hdr_maxsz + \
125 #define decode_rename_maxsz (op_decode_hdr_maxsz + 5 + 5)
126 #define encode_link_maxsz (op_encode_hdr_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 + \
133 #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
134 #define encode_create_maxsz (op_encode_hdr_maxsz + \
135 2 + nfs4_name_maxsz + \
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 + \
151 #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
152 decode_putfh_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 encode_getattr_maxsz)
164 #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
165 decode_putfh_maxsz + \
166 op_decode_hdr_maxsz + 4 + \
167 decode_getattr_maxsz)
168 #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
169 encode_putfh_maxsz + \
170 op_encode_hdr_maxsz + 3 + \
171 encode_getattr_maxsz)
172 #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
173 decode_putfh_maxsz + \
174 op_decode_hdr_maxsz + 2 + \
175 decode_getattr_maxsz)
176 #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
177 encode_putfh_maxsz + \
178 op_encode_hdr_maxsz + \
180 encode_getattr_maxsz + \
182 #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
183 decode_putfh_maxsz + \
184 op_decode_hdr_maxsz + 4 + 5 + 2 + 3 + \
185 decode_getattr_maxsz + \
187 #define NFS4_enc_open_confirm_sz \
188 (compound_encode_hdr_maxsz + \
189 encode_putfh_maxsz + \
190 op_encode_hdr_maxsz + 5)
191 #define NFS4_dec_open_confirm_sz (compound_decode_hdr_maxsz + \
192 decode_putfh_maxsz + \
193 op_decode_hdr_maxsz + 4)
194 #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
195 encode_putfh_maxsz + \
196 op_encode_hdr_maxsz + \
198 #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
199 decode_putfh_maxsz + \
200 op_decode_hdr_maxsz + \
202 #define NFS4_enc_open_downgrade_sz \
203 (compound_encode_hdr_maxsz + \
204 encode_putfh_maxsz + \
205 op_encode_hdr_maxsz + 7 + \
206 encode_getattr_maxsz)
207 #define NFS4_dec_open_downgrade_sz \
208 (compound_decode_hdr_maxsz + \
209 decode_putfh_maxsz + \
210 op_decode_hdr_maxsz + 4 + \
211 decode_getattr_maxsz)
212 #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
213 encode_putfh_maxsz + \
214 op_encode_hdr_maxsz + 5 + \
215 encode_getattr_maxsz)
216 #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
217 decode_putfh_maxsz + \
218 op_decode_hdr_maxsz + 4 + \
219 decode_getattr_maxsz)
220 #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
221 encode_putfh_maxsz + \
222 op_encode_hdr_maxsz + 4 + \
224 encode_getattr_maxsz)
225 #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
226 decode_putfh_maxsz + \
227 op_decode_hdr_maxsz + 3)
228 #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
229 encode_putfh_maxsz + \
231 #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
232 decode_putfh_maxsz + \
234 #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
236 #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
238 #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
239 encode_setclientid_maxsz)
240 #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
241 decode_setclientid_maxsz)
242 #define NFS4_enc_setclientid_confirm_sz \
243 (compound_encode_hdr_maxsz + \
244 encode_setclientid_confirm_maxsz + \
245 encode_putrootfh_maxsz + \
247 #define NFS4_dec_setclientid_confirm_sz \
248 (compound_decode_hdr_maxsz + \
249 decode_setclientid_confirm_maxsz + \
250 decode_putrootfh_maxsz + \
252 #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
253 encode_putfh_maxsz + \
254 encode_getattr_maxsz + \
255 op_encode_hdr_maxsz + \
259 #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
260 decode_putfh_maxsz + \
261 decode_getattr_maxsz + \
262 op_decode_hdr_maxsz + \
265 #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
266 encode_putfh_maxsz + \
267 encode_getattr_maxsz + \
268 op_encode_hdr_maxsz + \
271 #define NFS4_dec_lockt_sz (NFS4_dec_lock_sz)
272 #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
273 encode_putfh_maxsz + \
274 encode_getattr_maxsz + \
275 op_encode_hdr_maxsz + \
277 #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
278 decode_putfh_maxsz + \
279 decode_getattr_maxsz + \
280 op_decode_hdr_maxsz + 4)
281 #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
282 encode_putfh_maxsz + \
283 op_encode_hdr_maxsz + 1)
284 #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
285 decode_putfh_maxsz + \
286 op_decode_hdr_maxsz + 2)
287 #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
288 encode_putfh_maxsz + \
289 encode_getattr_maxsz)
290 #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
291 decode_putfh_maxsz + \
292 decode_getattr_maxsz)
293 #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
294 encode_putfh_maxsz + \
295 encode_lookup_maxsz + \
296 encode_getattr_maxsz + \
298 #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
299 decode_putfh_maxsz + \
300 op_decode_hdr_maxsz + \
301 decode_getattr_maxsz + \
303 #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
304 encode_putrootfh_maxsz + \
305 encode_getattr_maxsz + \
307 #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
308 decode_putrootfh_maxsz + \
309 decode_getattr_maxsz + \
311 #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
312 encode_putfh_maxsz + \
313 encode_remove_maxsz + \
314 encode_getattr_maxsz)
315 #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
316 decode_putfh_maxsz + \
317 op_decode_hdr_maxsz + 5 + \
318 decode_getattr_maxsz)
319 #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
320 encode_putfh_maxsz + \
321 encode_savefh_maxsz + \
322 encode_putfh_maxsz + \
323 encode_rename_maxsz + \
324 encode_getattr_maxsz + \
325 encode_restorefh_maxsz + \
326 encode_getattr_maxsz)
327 #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
328 decode_putfh_maxsz + \
329 decode_savefh_maxsz + \
330 decode_putfh_maxsz + \
331 decode_rename_maxsz + \
332 decode_getattr_maxsz + \
333 decode_restorefh_maxsz + \
334 decode_getattr_maxsz)
335 #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
336 encode_putfh_maxsz + \
337 encode_savefh_maxsz + \
338 encode_putfh_maxsz + \
339 encode_link_maxsz + \
340 decode_getattr_maxsz + \
341 encode_restorefh_maxsz + \
342 decode_getattr_maxsz)
343 #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
344 decode_putfh_maxsz + \
345 decode_savefh_maxsz + \
346 decode_putfh_maxsz + \
347 decode_link_maxsz + \
348 decode_getattr_maxsz + \
349 decode_restorefh_maxsz + \
350 decode_getattr_maxsz)
351 #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
352 encode_putfh_maxsz + \
353 encode_symlink_maxsz + \
354 encode_getattr_maxsz + \
356 #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
357 decode_putfh_maxsz + \
358 decode_symlink_maxsz + \
359 decode_getattr_maxsz + \
361 #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
362 encode_putfh_maxsz + \
363 encode_savefh_maxsz + \
364 encode_create_maxsz + \
365 encode_getfh_maxsz + \
366 encode_getattr_maxsz + \
367 encode_restorefh_maxsz + \
368 encode_getattr_maxsz)
369 #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
370 decode_putfh_maxsz + \
371 decode_savefh_maxsz + \
372 decode_create_maxsz + \
373 decode_getfh_maxsz + \
374 decode_getattr_maxsz + \
375 decode_restorefh_maxsz + \
376 decode_getattr_maxsz)
377 #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
378 encode_putfh_maxsz + \
379 encode_getattr_maxsz)
380 #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
381 decode_putfh_maxsz + \
382 decode_getattr_maxsz)
383 #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
384 encode_putfh_maxsz + \
385 encode_getattr_maxsz)
386 #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
387 decode_putfh_maxsz + \
388 op_decode_hdr_maxsz + 12)
389 #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
390 encode_getattr_maxsz)
391 #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
392 decode_getattr_maxsz)
393 #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
394 encode_putfh_maxsz + \
395 encode_delegreturn_maxsz)
396 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
397 decode_delegreturn_maxsz)
398 #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
399 encode_putfh_maxsz + \
400 encode_getattr_maxsz)
401 #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
402 decode_putfh_maxsz + \
403 op_decode_hdr_maxsz + \
404 nfs4_fattr_bitmap_maxsz + 1)
405 #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
406 encode_putfh_maxsz + \
407 op_encode_hdr_maxsz + 4 + \
408 nfs4_fattr_bitmap_maxsz + 1)
409 #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
410 decode_putfh_maxsz + \
411 op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
415 unsigned int nfs2type;
423 { S_IFSOCK, NFSOCK },
429 struct compound_hdr {
437 * START OF "GENERIC" ENCODE ROUTINES.
438 * These may look a little ugly since they are imported from a "generic"
439 * set of XDR encode/decode routines which are intended to be shared by
440 * all of our NFSv4 implementations (OpenBSD, MacOS X...).
442 * If the pain of reading these is too great, it should be a straightforward
443 * task to translate them into Linux-specific versions which are more
444 * consistent with the style used in NFSv2/v3...
446 #define WRITE32(n) *p++ = htonl(n)
447 #define WRITE64(n) do { \
448 *p++ = htonl((uint32_t)((n) >> 32)); \
449 *p++ = htonl((uint32_t)(n)); \
451 #define WRITEMEM(ptr,nbytes) do { \
452 p = xdr_encode_opaque_fixed(p, ptr, nbytes); \
455 #define RESERVE_SPACE(nbytes) do { \
456 p = xdr_reserve_space(xdr, nbytes); \
457 if (!p) printk("RESERVE_SPACE(%d) failed in function %s\n", (int) (nbytes), __FUNCTION__); \
461 static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
465 p = xdr_reserve_space(xdr, 4 + len);
467 xdr_encode_opaque(p, str, len);
470 static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
474 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag);
475 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN);
476 RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2));
477 WRITE32(hdr->taglen);
478 WRITEMEM(hdr->tag, hdr->taglen);
479 WRITE32(NFS4_MINOR_VERSION);
484 static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
488 p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE);
490 xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE);
493 static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
495 char owner_name[IDMAP_NAMESZ];
496 char owner_group[IDMAP_NAMESZ];
497 int owner_namelen = 0;
498 int owner_grouplen = 0;
507 * We reserve enough space to write the entire attribute buffer at once.
508 * In the worst-case, this would be
509 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
510 * = 36 bytes, plus any contribution from variable-length fields
511 * such as owner/group.
516 if (iap->ia_valid & ATTR_SIZE)
518 if (iap->ia_valid & ATTR_MODE)
520 if (iap->ia_valid & ATTR_UID) {
521 owner_namelen = nfs_map_uid_to_name(server->nfs4_state, iap->ia_uid, owner_name);
522 if (owner_namelen < 0) {
523 printk(KERN_WARNING "nfs: couldn't resolve uid %d to string\n",
526 strcpy(owner_name, "nobody");
527 owner_namelen = sizeof("nobody") - 1;
530 len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
532 if (iap->ia_valid & ATTR_GID) {
533 owner_grouplen = nfs_map_gid_to_group(server->nfs4_state, iap->ia_gid, owner_group);
534 if (owner_grouplen < 0) {
535 printk(KERN_WARNING "nfs4: couldn't resolve gid %d to string\n",
537 strcpy(owner_group, "nobody");
538 owner_grouplen = sizeof("nobody") - 1;
541 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
543 if (iap->ia_valid & ATTR_ATIME_SET)
545 else if (iap->ia_valid & ATTR_ATIME)
547 if (iap->ia_valid & ATTR_MTIME_SET)
549 else if (iap->ia_valid & ATTR_MTIME)
554 * We write the bitmap length now, but leave the bitmap and the attribute
555 * buffer length to be backfilled at the end of this routine.
561 if (iap->ia_valid & ATTR_SIZE) {
562 bmval0 |= FATTR4_WORD0_SIZE;
563 WRITE64(iap->ia_size);
565 if (iap->ia_valid & ATTR_MODE) {
566 bmval1 |= FATTR4_WORD1_MODE;
567 WRITE32(iap->ia_mode);
569 if (iap->ia_valid & ATTR_UID) {
570 bmval1 |= FATTR4_WORD1_OWNER;
571 WRITE32(owner_namelen);
572 WRITEMEM(owner_name, owner_namelen);
574 if (iap->ia_valid & ATTR_GID) {
575 bmval1 |= FATTR4_WORD1_OWNER_GROUP;
576 WRITE32(owner_grouplen);
577 WRITEMEM(owner_group, owner_grouplen);
579 if (iap->ia_valid & ATTR_ATIME_SET) {
580 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
581 WRITE32(NFS4_SET_TO_CLIENT_TIME);
583 WRITE32(iap->ia_mtime.tv_sec);
584 WRITE32(iap->ia_mtime.tv_nsec);
586 else if (iap->ia_valid & ATTR_ATIME) {
587 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
588 WRITE32(NFS4_SET_TO_SERVER_TIME);
590 if (iap->ia_valid & ATTR_MTIME_SET) {
591 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
592 WRITE32(NFS4_SET_TO_CLIENT_TIME);
594 WRITE32(iap->ia_mtime.tv_sec);
595 WRITE32(iap->ia_mtime.tv_nsec);
597 else if (iap->ia_valid & ATTR_MTIME) {
598 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
599 WRITE32(NFS4_SET_TO_SERVER_TIME);
603 * Now we backfill the bitmap and the attribute buffer length.
605 if (len != ((char *)p - (char *)q) + 4) {
606 printk ("encode_attr: Attr length calculation error! %u != %Zu\n",
607 len, ((char *)p - (char *)q) + 4);
610 len = (char *)p - (char *)q - 12;
611 *q++ = htonl(bmval0);
612 *q++ = htonl(bmval1);
620 static int encode_access(struct xdr_stream *xdr, u32 access)
631 static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg)
635 RESERVE_SPACE(8+sizeof(arg->stateid->data));
637 WRITE32(arg->seqid->sequence->counter);
638 WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
643 static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args)
649 WRITE64(args->offset);
650 WRITE32(args->count);
655 static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create)
661 WRITE32(create->ftype);
663 switch (create->ftype) {
665 RESERVE_SPACE(4 + create->u.symlink->len);
666 WRITE32(create->u.symlink->len);
667 WRITEMEM(create->u.symlink->name, create->u.symlink->len);
670 case NF4BLK: case NF4CHR:
672 WRITE32(create->u.device.specdata1);
673 WRITE32(create->u.device.specdata2);
680 RESERVE_SPACE(4 + create->name->len);
681 WRITE32(create->name->len);
682 WRITEMEM(create->name->name, create->name->len);
684 return encode_attrs(xdr, create->attrs, create->server);
687 static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap)
698 static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1)
710 static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask)
712 return encode_getattr_two(xdr,
713 bitmask[0] & nfs4_fattr_bitmap[0],
714 bitmask[1] & nfs4_fattr_bitmap[1]);
717 static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask)
719 return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0],
720 bitmask[1] & nfs4_fsinfo_bitmap[1]);
723 static int encode_getfh(struct xdr_stream *xdr)
733 static int encode_link(struct xdr_stream *xdr, const struct qstr *name)
737 RESERVE_SPACE(8 + name->len);
740 WRITEMEM(name->name, name->len);
745 static inline int nfs4_lock_type(struct file_lock *fl, int block)
747 if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK)
748 return block ? NFS4_READW_LT : NFS4_READ_LT;
749 return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT;
752 static inline uint64_t nfs4_lock_length(struct file_lock *fl)
754 if (fl->fl_end == OFFSET_MAX)
756 return fl->fl_end - fl->fl_start + 1;
760 * opcode,type,reclaim,offset,length,new_lock_owner = 32
761 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
763 static int encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args)
769 WRITE32(nfs4_lock_type(args->fl, args->block));
770 WRITE32(args->reclaim);
771 WRITE64(args->fl->fl_start);
772 WRITE64(nfs4_lock_length(args->fl));
773 WRITE32(args->new_lock_owner);
774 if (args->new_lock_owner){
776 WRITE32(args->open_seqid->sequence->counter);
777 WRITEMEM(args->open_stateid->data, sizeof(args->open_stateid->data));
778 WRITE32(args->lock_seqid->sequence->counter);
779 WRITE64(args->lock_owner.clientid);
781 WRITE32(args->lock_owner.id);
785 WRITEMEM(args->lock_stateid->data, sizeof(args->lock_stateid->data));
786 WRITE32(args->lock_seqid->sequence->counter);
792 static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args)
798 WRITE32(nfs4_lock_type(args->fl, 0));
799 WRITE64(args->fl->fl_start);
800 WRITE64(nfs4_lock_length(args->fl));
801 WRITE64(args->lock_owner.clientid);
803 WRITE32(args->lock_owner.id);
808 static int encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args)
814 WRITE32(nfs4_lock_type(args->fl, 0));
815 WRITE32(args->seqid->sequence->counter);
816 WRITEMEM(args->stateid->data, sizeof(args->stateid->data));
817 WRITE64(args->fl->fl_start);
818 WRITE64(nfs4_lock_length(args->fl));
823 static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name)
828 RESERVE_SPACE(8 + len);
831 WRITEMEM(name->name, len);
836 static void encode_share_access(struct xdr_stream *xdr, int open_flags)
841 switch (open_flags & (FMODE_READ|FMODE_WRITE)) {
843 WRITE32(NFS4_SHARE_ACCESS_READ);
846 WRITE32(NFS4_SHARE_ACCESS_WRITE);
848 case FMODE_READ|FMODE_WRITE:
849 WRITE32(NFS4_SHARE_ACCESS_BOTH);
854 WRITE32(0); /* for linux, share_deny = 0 always */
857 static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
861 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
866 WRITE32(arg->seqid->sequence->counter);
867 encode_share_access(xdr, arg->open_flags);
869 WRITE64(arg->clientid);
874 static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
879 switch(arg->open_flags & O_EXCL) {
881 WRITE32(NFS4_CREATE_UNCHECKED);
882 encode_attrs(xdr, arg->u.attrs, arg->server);
885 WRITE32(NFS4_CREATE_EXCLUSIVE);
886 encode_nfs4_verifier(xdr, &arg->u.verifier);
890 static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
895 switch (arg->open_flags & O_CREAT) {
897 WRITE32(NFS4_OPEN_NOCREATE);
900 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
901 WRITE32(NFS4_OPEN_CREATE);
902 encode_createmode(xdr, arg);
906 static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type)
911 switch (delegation_type) {
913 WRITE32(NFS4_OPEN_DELEGATE_NONE);
916 WRITE32(NFS4_OPEN_DELEGATE_READ);
918 case FMODE_WRITE|FMODE_READ:
919 WRITE32(NFS4_OPEN_DELEGATE_WRITE);
926 static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
931 WRITE32(NFS4_OPEN_CLAIM_NULL);
932 encode_string(xdr, name->len, name->name);
935 static inline void encode_claim_previous(struct xdr_stream *xdr, int type)
940 WRITE32(NFS4_OPEN_CLAIM_PREVIOUS);
941 encode_delegation_type(xdr, type);
944 static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
948 RESERVE_SPACE(4+sizeof(stateid->data));
949 WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
950 WRITEMEM(stateid->data, sizeof(stateid->data));
951 encode_string(xdr, name->len, name->name);
954 static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg)
956 encode_openhdr(xdr, arg);
957 encode_opentype(xdr, arg);
958 switch (arg->claim) {
959 case NFS4_OPEN_CLAIM_NULL:
960 encode_claim_null(xdr, arg->name);
962 case NFS4_OPEN_CLAIM_PREVIOUS:
963 encode_claim_previous(xdr, arg->u.delegation_type);
965 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
966 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
974 static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg)
978 RESERVE_SPACE(8+sizeof(arg->stateid->data));
979 WRITE32(OP_OPEN_CONFIRM);
980 WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
981 WRITE32(arg->seqid->sequence->counter);
986 static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg)
990 RESERVE_SPACE(8+sizeof(arg->stateid->data));
991 WRITE32(OP_OPEN_DOWNGRADE);
992 WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
993 WRITE32(arg->seqid->sequence->counter);
994 encode_share_access(xdr, arg->open_flags);
999 encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh)
1004 RESERVE_SPACE(8 + len);
1007 WRITEMEM(fh->data, len);
1012 static int encode_putrootfh(struct xdr_stream *xdr)
1017 WRITE32(OP_PUTROOTFH);
1022 static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx)
1024 nfs4_stateid stateid;
1028 if (ctx->state != NULL) {
1029 nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner);
1030 WRITEMEM(stateid.data, sizeof(stateid.data));
1032 WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data));
1035 static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args)
1042 encode_stateid(xdr, args->context);
1045 WRITE64(args->offset);
1046 WRITE32(args->count);
1051 static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req)
1053 struct rpc_auth *auth = req->rq_task->tk_auth;
1054 uint32_t attrs[2] = {
1055 FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID,
1056 FATTR4_WORD1_MOUNTED_ON_FILEID,
1061 RESERVE_SPACE(32+sizeof(nfs4_verifier));
1062 WRITE32(OP_READDIR);
1063 WRITE64(readdir->cookie);
1064 WRITEMEM(readdir->verifier.data, sizeof(readdir->verifier.data));
1065 WRITE32(readdir->count >> 1); /* We're not doing readdirplus */
1066 WRITE32(readdir->count);
1068 /* Switch to mounted_on_fileid if the server supports it */
1069 if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)
1070 attrs[0] &= ~FATTR4_WORD0_FILEID;
1072 attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
1073 WRITE32(attrs[0] & readdir->bitmask[0]);
1074 WRITE32(attrs[1] & readdir->bitmask[1]);
1075 dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n",
1077 (unsigned long long)readdir->cookie,
1078 ((u32 *)readdir->verifier.data)[0],
1079 ((u32 *)readdir->verifier.data)[1],
1080 attrs[0] & readdir->bitmask[0],
1081 attrs[1] & readdir->bitmask[1]);
1083 /* set up reply kvec
1084 * toplevel_status + taglen + rescount + OP_PUTFH + status
1085 * + OP_READDIR + status + verifer(2) = 9
1087 replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2;
1088 xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages,
1089 readdir->pgbase, readdir->count);
1090 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
1091 __FUNCTION__, replen, readdir->pages,
1092 readdir->pgbase, readdir->count);
1097 static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req)
1099 struct rpc_auth *auth = req->rq_task->tk_auth;
1100 unsigned int replen;
1104 WRITE32(OP_READLINK);
1106 /* set up reply kvec
1107 * toplevel_status + taglen + rescount + OP_PUTFH + status
1108 * + OP_READLINK + status + string length = 8
1110 replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2;
1111 xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages,
1112 readlink->pgbase, readlink->pglen);
1117 static int encode_remove(struct xdr_stream *xdr, const struct qstr *name)
1121 RESERVE_SPACE(8 + name->len);
1124 WRITEMEM(name->name, name->len);
1129 static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname)
1133 RESERVE_SPACE(8 + oldname->len);
1135 WRITE32(oldname->len);
1136 WRITEMEM(oldname->name, oldname->len);
1138 RESERVE_SPACE(4 + newname->len);
1139 WRITE32(newname->len);
1140 WRITEMEM(newname->name, newname->len);
1145 static int encode_renew(struct xdr_stream *xdr, const struct nfs4_client *client_stateid)
1151 WRITE64(client_stateid->cl_clientid);
1157 encode_restorefh(struct xdr_stream *xdr)
1162 WRITE32(OP_RESTOREFH);
1168 encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg)
1172 RESERVE_SPACE(4+sizeof(zero_stateid.data));
1173 WRITE32(OP_SETATTR);
1174 WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data));
1177 WRITE32(FATTR4_WORD0_ACL);
1178 if (arg->acl_len % 4)
1181 WRITE32(arg->acl_len);
1182 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
1187 encode_savefh(struct xdr_stream *xdr)
1197 static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server)
1202 RESERVE_SPACE(4+sizeof(arg->stateid.data));
1203 WRITE32(OP_SETATTR);
1204 WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
1206 if ((status = encode_attrs(xdr, arg->iap, server)))
1212 static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid)
1216 RESERVE_SPACE(4 + sizeof(setclientid->sc_verifier->data));
1217 WRITE32(OP_SETCLIENTID);
1218 WRITEMEM(setclientid->sc_verifier->data, sizeof(setclientid->sc_verifier->data));
1220 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
1222 WRITE32(setclientid->sc_prog);
1223 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1224 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
1226 WRITE32(setclientid->sc_cb_ident);
1231 static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_client *client_state)
1235 RESERVE_SPACE(12 + sizeof(client_state->cl_confirm.data));
1236 WRITE32(OP_SETCLIENTID_CONFIRM);
1237 WRITE64(client_state->cl_clientid);
1238 WRITEMEM(client_state->cl_confirm.data, sizeof(client_state->cl_confirm.data));
1243 static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args)
1250 encode_stateid(xdr, args->context);
1253 WRITE64(args->offset);
1254 WRITE32(args->stable);
1255 WRITE32(args->count);
1257 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
1262 static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid)
1268 WRITE32(OP_DELEGRETURN);
1269 WRITEMEM(stateid->data, sizeof(stateid->data));
1274 * END OF "GENERIC" ENCODE ROUTINES.
1278 * Encode an ACCESS request
1280 static int nfs4_xdr_enc_access(struct rpc_rqst *req, uint32_t *p, const struct nfs4_accessargs *args)
1282 struct xdr_stream xdr;
1283 struct compound_hdr hdr = {
1288 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1289 encode_compound_hdr(&xdr, &hdr);
1290 if ((status = encode_putfh(&xdr, args->fh)) == 0)
1291 status = encode_access(&xdr, args->access);
1296 * Encode LOOKUP request
1298 static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_arg *args)
1300 struct xdr_stream xdr;
1301 struct compound_hdr hdr = {
1306 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1307 encode_compound_hdr(&xdr, &hdr);
1308 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1310 if ((status = encode_lookup(&xdr, args->name)) != 0)
1312 if ((status = encode_getfh(&xdr)) != 0)
1314 status = encode_getfattr(&xdr, args->bitmask);
1320 * Encode LOOKUP_ROOT request
1322 static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_root_arg *args)
1324 struct xdr_stream xdr;
1325 struct compound_hdr hdr = {
1330 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1331 encode_compound_hdr(&xdr, &hdr);
1332 if ((status = encode_putrootfh(&xdr)) != 0)
1334 if ((status = encode_getfh(&xdr)) == 0)
1335 status = encode_getfattr(&xdr, args->bitmask);
1341 * Encode REMOVE request
1343 static int nfs4_xdr_enc_remove(struct rpc_rqst *req, uint32_t *p, const struct nfs4_remove_arg *args)
1345 struct xdr_stream xdr;
1346 struct compound_hdr hdr = {
1351 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1352 encode_compound_hdr(&xdr, &hdr);
1353 if ((status = encode_putfh(&xdr, args->fh)) != 0)
1355 if ((status = encode_remove(&xdr, args->name)) != 0)
1357 status = encode_getfattr(&xdr, args->bitmask);
1363 * Encode RENAME request
1365 static int nfs4_xdr_enc_rename(struct rpc_rqst *req, uint32_t *p, const struct nfs4_rename_arg *args)
1367 struct xdr_stream xdr;
1368 struct compound_hdr hdr = {
1373 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1374 encode_compound_hdr(&xdr, &hdr);
1375 if ((status = encode_putfh(&xdr, args->old_dir)) != 0)
1377 if ((status = encode_savefh(&xdr)) != 0)
1379 if ((status = encode_putfh(&xdr, args->new_dir)) != 0)
1381 if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0)
1383 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
1385 if ((status = encode_restorefh(&xdr)) != 0)
1387 status = encode_getfattr(&xdr, args->bitmask);
1393 * Encode LINK request
1395 static int nfs4_xdr_enc_link(struct rpc_rqst *req, uint32_t *p, const struct nfs4_link_arg *args)
1397 struct xdr_stream xdr;
1398 struct compound_hdr hdr = {
1403 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1404 encode_compound_hdr(&xdr, &hdr);
1405 if ((status = encode_putfh(&xdr, args->fh)) != 0)
1407 if ((status = encode_savefh(&xdr)) != 0)
1409 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1411 if ((status = encode_link(&xdr, args->name)) != 0)
1413 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
1415 if ((status = encode_restorefh(&xdr)) != 0)
1417 status = encode_getfattr(&xdr, args->bitmask);
1423 * Encode CREATE request
1425 static int nfs4_xdr_enc_create(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args)
1427 struct xdr_stream xdr;
1428 struct compound_hdr hdr = {
1433 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1434 encode_compound_hdr(&xdr, &hdr);
1435 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1437 if ((status = encode_savefh(&xdr)) != 0)
1439 if ((status = encode_create(&xdr, args)) != 0)
1441 if ((status = encode_getfh(&xdr)) != 0)
1443 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
1445 if ((status = encode_restorefh(&xdr)) != 0)
1447 status = encode_getfattr(&xdr, args->bitmask);
1453 * Encode SYMLINK request
1455 static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args)
1457 return nfs4_xdr_enc_create(req, p, args);
1461 * Encode GETATTR request
1463 static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, uint32_t *p, const struct nfs4_getattr_arg *args)
1465 struct xdr_stream xdr;
1466 struct compound_hdr hdr = {
1471 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1472 encode_compound_hdr(&xdr, &hdr);
1473 if ((status = encode_putfh(&xdr, args->fh)) == 0)
1474 status = encode_getfattr(&xdr, args->bitmask);
1479 * Encode a CLOSE request
1481 static int nfs4_xdr_enc_close(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args)
1483 struct xdr_stream xdr;
1484 struct compound_hdr hdr = {
1489 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1490 encode_compound_hdr(&xdr, &hdr);
1491 status = encode_putfh(&xdr, args->fh);
1494 status = encode_close(&xdr, args);
1497 status = encode_getfattr(&xdr, args->bitmask);
1503 * Encode an OPEN request
1505 static int nfs4_xdr_enc_open(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args)
1507 struct xdr_stream xdr;
1508 struct compound_hdr hdr = {
1513 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1514 encode_compound_hdr(&xdr, &hdr);
1515 status = encode_putfh(&xdr, args->fh);
1518 status = encode_savefh(&xdr);
1521 status = encode_open(&xdr, args);
1524 status = encode_getfh(&xdr);
1527 status = encode_getfattr(&xdr, args->bitmask);
1530 status = encode_restorefh(&xdr);
1533 status = encode_getfattr(&xdr, args->bitmask);
1539 * Encode an OPEN_CONFIRM request
1541 static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_open_confirmargs *args)
1543 struct xdr_stream xdr;
1544 struct compound_hdr hdr = {
1549 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1550 encode_compound_hdr(&xdr, &hdr);
1551 status = encode_putfh(&xdr, args->fh);
1554 status = encode_open_confirm(&xdr, args);
1560 * Encode an OPEN request with no attributes.
1562 static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args)
1564 struct xdr_stream xdr;
1565 struct compound_hdr hdr = {
1570 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1571 encode_compound_hdr(&xdr, &hdr);
1572 status = encode_putfh(&xdr, args->fh);
1575 status = encode_open(&xdr, args);
1578 status = encode_getfattr(&xdr, args->bitmask);
1584 * Encode an OPEN_DOWNGRADE request
1586 static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args)
1588 struct xdr_stream xdr;
1589 struct compound_hdr hdr = {
1594 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1595 encode_compound_hdr(&xdr, &hdr);
1596 status = encode_putfh(&xdr, args->fh);
1599 status = encode_open_downgrade(&xdr, args);
1602 status = encode_getfattr(&xdr, args->bitmask);
1608 * Encode a LOCK request
1610 static int nfs4_xdr_enc_lock(struct rpc_rqst *req, uint32_t *p, struct nfs_lock_args *args)
1612 struct xdr_stream xdr;
1613 struct compound_hdr hdr = {
1618 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1619 encode_compound_hdr(&xdr, &hdr);
1620 status = encode_putfh(&xdr, args->fh);
1623 status = encode_lock(&xdr, args);
1629 * Encode a LOCKT request
1631 static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, uint32_t *p, struct nfs_lockt_args *args)
1633 struct xdr_stream xdr;
1634 struct compound_hdr hdr = {
1639 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1640 encode_compound_hdr(&xdr, &hdr);
1641 status = encode_putfh(&xdr, args->fh);
1644 status = encode_lockt(&xdr, args);
1650 * Encode a LOCKU request
1652 static int nfs4_xdr_enc_locku(struct rpc_rqst *req, uint32_t *p, struct nfs_locku_args *args)
1654 struct xdr_stream xdr;
1655 struct compound_hdr hdr = {
1660 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1661 encode_compound_hdr(&xdr, &hdr);
1662 status = encode_putfh(&xdr, args->fh);
1665 status = encode_locku(&xdr, args);
1671 * Encode a READLINK request
1673 static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readlink *args)
1675 struct xdr_stream xdr;
1676 struct compound_hdr hdr = {
1681 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1682 encode_compound_hdr(&xdr, &hdr);
1683 status = encode_putfh(&xdr, args->fh);
1686 status = encode_readlink(&xdr, args, req);
1692 * Encode a READDIR request
1694 static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readdir_arg *args)
1696 struct xdr_stream xdr;
1697 struct compound_hdr hdr = {
1702 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1703 encode_compound_hdr(&xdr, &hdr);
1704 status = encode_putfh(&xdr, args->fh);
1707 status = encode_readdir(&xdr, args, req);
1713 * Encode a READ request
1715 static int nfs4_xdr_enc_read(struct rpc_rqst *req, uint32_t *p, struct nfs_readargs *args)
1717 struct rpc_auth *auth = req->rq_task->tk_auth;
1718 struct xdr_stream xdr;
1719 struct compound_hdr hdr = {
1724 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1725 encode_compound_hdr(&xdr, &hdr);
1726 status = encode_putfh(&xdr, args->fh);
1729 status = encode_read(&xdr, args);
1733 /* set up reply kvec
1734 * toplevel status + taglen=0 + rescount + OP_PUTFH + status
1735 * + OP_READ + status + eof + datalen = 9
1737 replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2;
1738 xdr_inline_pages(&req->rq_rcv_buf, replen,
1739 args->pages, args->pgbase, args->count);
1745 * Encode an SETATTR request
1747 static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, uint32_t *p, struct nfs_setattrargs *args)
1750 struct xdr_stream xdr;
1751 struct compound_hdr hdr = {
1756 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1757 encode_compound_hdr(&xdr, &hdr);
1758 status = encode_putfh(&xdr, args->fh);
1761 status = encode_setattr(&xdr, args, args->server);
1764 status = encode_getfattr(&xdr, args->bitmask);
1770 * Encode a GETACL request
1773 nfs4_xdr_enc_getacl(struct rpc_rqst *req, uint32_t *p,
1774 struct nfs_getaclargs *args)
1776 struct xdr_stream xdr;
1777 struct rpc_auth *auth = req->rq_task->tk_auth;
1778 struct compound_hdr hdr = {
1783 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1784 encode_compound_hdr(&xdr, &hdr);
1785 status = encode_putfh(&xdr, args->fh);
1788 status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0);
1789 /* set up reply buffer: */
1790 replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2;
1791 xdr_inline_pages(&req->rq_rcv_buf, replen,
1792 args->acl_pages, args->acl_pgbase, args->acl_len);
1798 * Encode a WRITE request
1800 static int nfs4_xdr_enc_write(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args)
1802 struct xdr_stream xdr;
1803 struct compound_hdr hdr = {
1808 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1809 encode_compound_hdr(&xdr, &hdr);
1810 status = encode_putfh(&xdr, args->fh);
1813 status = encode_write(&xdr, args);
1816 status = encode_getfattr(&xdr, args->bitmask);
1824 static int nfs4_xdr_enc_commit(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args)
1826 struct xdr_stream xdr;
1827 struct compound_hdr hdr = {
1832 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1833 encode_compound_hdr(&xdr, &hdr);
1834 status = encode_putfh(&xdr, args->fh);
1837 status = encode_commit(&xdr, args);
1840 status = encode_getfattr(&xdr, args->bitmask);
1848 static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs4_fsinfo_arg *args)
1850 struct xdr_stream xdr;
1851 struct compound_hdr hdr = {
1856 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1857 encode_compound_hdr(&xdr, &hdr);
1858 status = encode_putfh(&xdr, args->fh);
1860 status = encode_fsinfo(&xdr, args->bitmask);
1865 * a PATHCONF request
1867 static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, uint32_t *p, const struct nfs4_pathconf_arg *args)
1869 struct xdr_stream xdr;
1870 struct compound_hdr hdr = {
1875 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1876 encode_compound_hdr(&xdr, &hdr);
1877 status = encode_putfh(&xdr, args->fh);
1879 status = encode_getattr_one(&xdr,
1880 args->bitmask[0] & nfs4_pathconf_bitmap[0]);
1887 static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, uint32_t *p, const struct nfs4_statfs_arg *args)
1889 struct xdr_stream xdr;
1890 struct compound_hdr hdr = {
1895 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1896 encode_compound_hdr(&xdr, &hdr);
1897 status = encode_putfh(&xdr, args->fh);
1899 status = encode_getattr_two(&xdr,
1900 args->bitmask[0] & nfs4_statfs_bitmap[0],
1901 args->bitmask[1] & nfs4_statfs_bitmap[1]);
1906 * GETATTR_BITMAP request
1908 static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, uint32_t *p, const struct nfs_fh *fhandle)
1910 struct xdr_stream xdr;
1911 struct compound_hdr hdr = {
1916 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1917 encode_compound_hdr(&xdr, &hdr);
1918 status = encode_putfh(&xdr, fhandle);
1920 status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
1921 FATTR4_WORD0_LINK_SUPPORT|
1922 FATTR4_WORD0_SYMLINK_SUPPORT|
1923 FATTR4_WORD0_ACLSUPPORT);
1930 static int nfs4_xdr_enc_renew(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp)
1932 struct xdr_stream xdr;
1933 struct compound_hdr hdr = {
1937 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1938 encode_compound_hdr(&xdr, &hdr);
1939 return encode_renew(&xdr, clp);
1943 * a SETCLIENTID request
1945 static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, uint32_t *p, struct nfs4_setclientid *sc)
1947 struct xdr_stream xdr;
1948 struct compound_hdr hdr = {
1952 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1953 encode_compound_hdr(&xdr, &hdr);
1954 return encode_setclientid(&xdr, sc);
1958 * a SETCLIENTID_CONFIRM request
1960 static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp)
1962 struct xdr_stream xdr;
1963 struct compound_hdr hdr = {
1966 const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
1969 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1970 encode_compound_hdr(&xdr, &hdr);
1971 status = encode_setclientid_confirm(&xdr, clp);
1973 status = encode_putrootfh(&xdr);
1975 status = encode_fsinfo(&xdr, lease_bitmap);
1980 * DELEGRETURN request
1982 static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, uint32_t *p, const struct nfs4_delegreturnargs *args)
1984 struct xdr_stream xdr;
1985 struct compound_hdr hdr = {
1990 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1991 encode_compound_hdr(&xdr, &hdr);
1992 if ((status = encode_putfh(&xdr, args->fhandle)) == 0)
1993 status = encode_delegreturn(&xdr, args->stateid);
1998 * START OF "GENERIC" DECODE ROUTINES.
1999 * These may look a little ugly since they are imported from a "generic"
2000 * set of XDR encode/decode routines which are intended to be shared by
2001 * all of our NFSv4 implementations (OpenBSD, MacOS X...).
2003 * If the pain of reading these is too great, it should be a straightforward
2004 * task to translate them into Linux-specific versions which are more
2005 * consistent with the style used in NFSv2/v3...
2007 #define READ32(x) (x) = ntohl(*p++)
2008 #define READ64(x) do { \
2009 (x) = (u64)ntohl(*p++) << 32; \
2010 (x) |= ntohl(*p++); \
2012 #define READTIME(x) do { \
2014 (x.tv_sec) = ntohl(*p++); \
2015 (x.tv_nsec) = ntohl(*p++); \
2017 #define COPYMEM(x,nbytes) do { \
2018 memcpy((x), p, nbytes); \
2019 p += XDR_QUADLEN(nbytes); \
2022 #define READ_BUF(nbytes) do { \
2023 p = xdr_inline_decode(xdr, nbytes); \
2025 printk(KERN_WARNING "%s: reply buffer overflowed in line %d.", \
2026 __FUNCTION__, __LINE__); \
2031 static int decode_opaque_inline(struct xdr_stream *xdr, uint32_t *len, char **string)
2038 *string = (char *)p;
2042 static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
2047 READ32(hdr->status);
2048 READ32(hdr->taglen);
2050 READ_BUF(hdr->taglen + 4);
2051 hdr->tag = (char *)p;
2052 p += XDR_QUADLEN(hdr->taglen);
2057 static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
2065 if (opnum != expected) {
2067 "nfs4_decode_op_hdr: Server returned operation"
2068 " %d but we issued a request for %d\n",
2073 if (nfserr != NFS_OK)
2074 return -nfs_stat_to_errno(nfserr);
2079 static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs4_client *clp)
2086 return decode_opaque_inline(xdr, &strlen, &str);
2089 static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
2096 bitmap[0] = bitmap[1] = 0;
2097 READ_BUF((bmlen << 2));
2106 static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, uint32_t **savep)
2116 static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
2118 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
2119 decode_attr_bitmap(xdr, bitmask);
2120 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
2122 bitmask[0] = bitmask[1] = 0;
2123 dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]);
2127 static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
2132 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
2134 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
2137 if (*type < NF4REG || *type > NF4NAMEDATTR) {
2138 dprintk("%s: bad type %d\n", __FUNCTION__, *type);
2141 bitmap[0] &= ~FATTR4_WORD0_TYPE;
2143 dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type);
2147 static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
2152 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
2154 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
2157 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
2159 dprintk("%s: change attribute=%Lu\n", __FUNCTION__,
2160 (unsigned long long)*change);
2164 static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
2169 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
2171 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
2174 bitmap[0] &= ~FATTR4_WORD0_SIZE;
2176 dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size);
2180 static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2185 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
2187 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
2190 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
2192 dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true");
2196 static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2201 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
2203 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
2206 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
2208 dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true");
2212 static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fsid *fsid)
2218 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
2220 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
2222 READ64(fsid->major);
2223 READ64(fsid->minor);
2224 bitmap[0] &= ~FATTR4_WORD0_FSID;
2226 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__,
2227 (unsigned long long)fsid->major,
2228 (unsigned long long)fsid->minor);
2232 static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2237 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
2239 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
2242 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
2244 dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res);
2248 static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2252 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
2253 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
2255 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
2258 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
2260 dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res);
2264 static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
2269 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
2271 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
2274 bitmap[0] &= ~FATTR4_WORD0_FILEID;
2276 dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid);
2280 static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2286 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
2288 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
2291 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
2293 dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2297 static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2303 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
2305 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
2308 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
2310 dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2314 static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2320 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
2322 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
2325 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
2327 dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2331 static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2337 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
2339 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
2342 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
2344 dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2348 static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
2354 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
2356 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
2359 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
2361 dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink);
2365 static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
2371 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
2373 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
2376 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
2378 dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname);
2382 static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2388 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
2390 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
2394 if (maxread > 0x7FFFFFFF)
2395 maxread = 0x7FFFFFFF;
2396 *res = (uint32_t)maxread;
2397 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
2399 dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res);
2403 static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2409 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
2411 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
2415 if (maxwrite > 0x7FFFFFFF)
2416 maxwrite = 0x7FFFFFFF;
2417 *res = (uint32_t)maxwrite;
2418 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
2420 dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res);
2424 static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode)
2429 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
2431 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
2435 bitmap[1] &= ~FATTR4_WORD1_MODE;
2437 dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode);
2441 static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
2446 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
2448 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
2451 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
2453 dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink);
2457 static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *uid)
2462 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
2464 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
2468 if (len < XDR_MAX_NETOBJ) {
2469 if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0)
2470 dprintk("%s: nfs_map_name_to_uid failed!\n",
2473 printk(KERN_WARNING "%s: name too long (%u)!\n",
2475 bitmap[1] &= ~FATTR4_WORD1_OWNER;
2477 dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid);
2481 static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *gid)
2486 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
2488 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
2492 if (len < XDR_MAX_NETOBJ) {
2493 if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0)
2494 dprintk("%s: nfs_map_group_to_gid failed!\n",
2497 printk(KERN_WARNING "%s: name too long (%u)!\n",
2499 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
2501 dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid);
2505 static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
2507 uint32_t major = 0, minor = 0, *p;
2510 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
2512 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
2518 tmp = MKDEV(major, minor);
2519 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
2521 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
2523 dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor);
2527 static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2533 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
2535 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
2538 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
2540 dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2544 static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2550 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
2552 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
2555 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
2557 dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2561 static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2567 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
2569 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
2572 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
2574 dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2578 static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
2583 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
2585 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
2588 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
2590 dprintk("%s: space used=%Lu\n", __FUNCTION__,
2591 (unsigned long long)*used);
2595 static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
2604 time->tv_sec = (time_t)sec;
2605 time->tv_nsec = (long)nsec;
2609 static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2615 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
2617 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
2618 status = decode_attr_time(xdr, time);
2619 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
2621 dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2625 static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2631 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
2633 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
2634 status = decode_attr_time(xdr, time);
2635 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
2637 dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2641 static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2647 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
2649 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
2650 status = decode_attr_time(xdr, time);
2651 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
2653 dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2657 static int verify_attr_len(struct xdr_stream *xdr, uint32_t *savep, uint32_t attrlen)
2659 unsigned int attrwords = XDR_QUADLEN(attrlen);
2660 unsigned int nwords = xdr->p - savep;
2662 if (unlikely(attrwords != nwords)) {
2663 printk(KERN_WARNING "%s: server returned incorrect attribute length: %u %c %u\n",
2666 (attrwords < nwords) ? '<' : '>',
2673 static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2678 READ32(cinfo->atomic);
2679 READ64(cinfo->before);
2680 READ64(cinfo->after);
2684 static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
2690 status = decode_op_hdr(xdr, OP_ACCESS);
2696 access->supported = supp;
2697 access->access = acc;
2701 static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
2706 status = decode_op_hdr(xdr, OP_CLOSE);
2709 READ_BUF(sizeof(res->stateid.data));
2710 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
2714 static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
2719 status = decode_op_hdr(xdr, OP_COMMIT);
2723 COPYMEM(res->verf->verifier, 8);
2727 static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2733 status = decode_op_hdr(xdr, OP_CREATE);
2736 if ((status = decode_change_info(xdr, cinfo)))
2740 READ_BUF(bmlen << 2);
2744 static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
2751 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2753 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2755 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2757 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
2759 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
2761 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
2763 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
2765 status = verify_attr_len(xdr, savep, attrlen);
2767 dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
2771 static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
2778 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2780 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2782 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2785 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
2787 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
2789 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
2791 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
2793 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
2795 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
2798 status = verify_attr_len(xdr, savep, attrlen);
2800 dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
2804 static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
2811 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2813 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2815 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2818 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
2820 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
2823 status = verify_attr_len(xdr, savep, attrlen);
2825 dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
2829 static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server)
2835 int status, fmode = 0;
2837 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2839 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2842 fattr->bitmap[0] = bitmap[0];
2843 fattr->bitmap[1] = bitmap[1];
2845 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2849 if ((status = decode_attr_type(xdr, bitmap, &type)) != 0)
2851 fattr->type = nfs_type2fmt[type].nfs2type;
2852 fmode = nfs_type2fmt[type].mode;
2854 if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0)
2856 if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0)
2858 if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid_u.nfs4)) != 0)
2860 if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0)
2862 if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0)
2864 fattr->mode |= fmode;
2865 if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0)
2867 if ((status = decode_attr_owner(xdr, bitmap, server->nfs4_state, &fattr->uid)) != 0)
2869 if ((status = decode_attr_group(xdr, bitmap, server->nfs4_state, &fattr->gid)) != 0)
2871 if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0)
2873 if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0)
2875 if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0)
2877 if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0)
2879 if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0)
2881 if ((status = verify_attr_len(xdr, savep, attrlen)) == 0)
2882 fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4;
2884 dprintk("%s: xdr returned %d\n", __FUNCTION__, -status);
2889 static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
2892 uint32_t attrlen, bitmap[2];
2895 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2897 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2899 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2902 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
2904 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
2906 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
2908 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
2910 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
2911 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
2913 fsinfo->wtpref = fsinfo->wtmax;
2915 status = verify_attr_len(xdr, savep, attrlen);
2917 dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
2921 static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
2927 status = decode_op_hdr(xdr, OP_GETFH);
2930 /* Zero handle first to allow comparisons */
2931 memset(fh, 0, sizeof(*fh));
2935 if (len > NFS4_FHSIZE)
2939 COPYMEM(fh->data, len);
2943 static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2947 status = decode_op_hdr(xdr, OP_LINK);
2950 return decode_change_info(xdr, cinfo);
2954 * We create the owner, so we know a proper owner.id length is 4.
2956 static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
2958 uint64_t offset, length, clientid;
2960 uint32_t namelen, type;
2967 fl->fl_start = (loff_t)offset;
2968 fl->fl_end = fl->fl_start + (loff_t)length - 1;
2969 if (length == ~(uint64_t)0)
2970 fl->fl_end = OFFSET_MAX;
2971 fl->fl_type = F_WRLCK;
2973 fl->fl_type = F_RDLCK;
2979 return -NFS4ERR_DENIED;
2982 static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res)
2987 status = decode_op_hdr(xdr, OP_LOCK);
2989 READ_BUF(sizeof(res->stateid.data));
2990 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
2991 } else if (status == -NFS4ERR_DENIED)
2992 return decode_lock_denied(xdr, NULL);
2996 static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res)
2999 status = decode_op_hdr(xdr, OP_LOCKT);
3000 if (status == -NFS4ERR_DENIED)
3001 return decode_lock_denied(xdr, res->denied);
3005 static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
3010 status = decode_op_hdr(xdr, OP_LOCKU);
3012 READ_BUF(sizeof(res->stateid.data));
3013 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3018 static int decode_lookup(struct xdr_stream *xdr)
3020 return decode_op_hdr(xdr, OP_LOOKUP);
3023 /* This is too sick! */
3024 static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
3027 uint32_t limit_type, nblocks, blocksize;
3031 switch (limit_type) {
3038 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
3043 static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
3046 uint32_t delegation_type;
3049 READ32(delegation_type);
3050 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
3051 res->delegation_type = 0;
3055 COPYMEM(res->delegation.data, sizeof(res->delegation.data));
3056 READ32(res->do_recall);
3057 switch (delegation_type) {
3058 case NFS4_OPEN_DELEGATE_READ:
3059 res->delegation_type = FMODE_READ;
3061 case NFS4_OPEN_DELEGATE_WRITE:
3062 res->delegation_type = FMODE_WRITE|FMODE_READ;
3063 if (decode_space_limit(xdr, &res->maxsize) < 0)
3066 return decode_ace(xdr, NULL, res->server->nfs4_state);
3069 static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
3075 status = decode_op_hdr(xdr, OP_OPEN);
3078 READ_BUF(sizeof(res->stateid.data));
3079 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3081 decode_change_info(xdr, &res->cinfo);
3084 READ32(res->rflags);
3089 READ_BUF(bmlen << 2);
3091 return decode_delegation(xdr, res);
3093 dprintk("%s: Bitmap too large! Length = %u\n", __FUNCTION__, bmlen);
3097 static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
3102 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
3105 READ_BUF(sizeof(res->stateid.data));
3106 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3110 static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
3115 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
3118 READ_BUF(sizeof(res->stateid.data));
3119 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3123 static int decode_putfh(struct xdr_stream *xdr)
3125 return decode_op_hdr(xdr, OP_PUTFH);
3128 static int decode_putrootfh(struct xdr_stream *xdr)
3130 return decode_op_hdr(xdr, OP_PUTROOTFH);
3133 static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res)
3135 struct kvec *iov = req->rq_rcv_buf.head;
3137 uint32_t count, eof, recvd, hdrlen;
3140 status = decode_op_hdr(xdr, OP_READ);
3146 hdrlen = (u8 *) p - (u8 *) iov->iov_base;
3147 recvd = req->rq_rcv_buf.len - hdrlen;
3148 if (count > recvd) {
3149 printk(KERN_WARNING "NFS: server cheating in read reply: "
3150 "count %u > recvd %u\n", count, recvd);
3154 xdr_read_pages(xdr, count);
3160 static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
3162 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
3163 struct page *page = *rcvbuf->pages;
3164 struct kvec *iov = rcvbuf->head;
3165 unsigned int nr, pglen = rcvbuf->page_len;
3166 uint32_t *end, *entry, *p, *kaddr;
3167 uint32_t len, attrlen;
3168 int hdrlen, recvd, status;
3170 status = decode_op_hdr(xdr, OP_READDIR);
3174 COPYMEM(readdir->verifier.data, 8);
3175 dprintk("%s: verifier = 0x%x%x\n",
3177 ((u32 *)readdir->verifier.data)[0],
3178 ((u32 *)readdir->verifier.data)[1]);
3181 hdrlen = (char *) p - (char *) iov->iov_base;
3182 recvd = rcvbuf->len - hdrlen;
3185 xdr_read_pages(xdr, pglen);
3187 BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE);
3188 kaddr = p = (uint32_t *) kmap_atomic(page, KM_USER0);
3189 end = (uint32_t *) ((char *)p + pglen + readdir->pgbase);
3191 for (nr = 0; *p++; nr++) {
3194 dprintk("cookie = %Lu, ", *((unsigned long long *)p));
3195 p += 2; /* cookie */
3196 len = ntohl(*p++); /* filename length */
3197 if (len > NFS4_MAXNAMLEN) {
3198 printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len);
3201 dprintk("filename = %*s\n", len, (char *)p);
3202 p += XDR_QUADLEN(len);
3205 len = ntohl(*p++); /* bitmap length */
3209 attrlen = XDR_QUADLEN(ntohl(*p++));
3210 p += attrlen; /* attributes */
3215 if (!nr && (entry[0] != 0 || entry[1] == 0))
3218 kunmap_atomic(kaddr, KM_USER0);
3221 dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr);
3222 entry[0] = entry[1] = 0;
3223 /* truncate listing ? */
3225 printk(KERN_NOTICE "NFS: readdir reply truncated!\n");
3230 kunmap_atomic(kaddr, KM_USER0);
3231 return -errno_NFSERR_IO;
3234 static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
3236 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
3237 struct kvec *iov = rcvbuf->head;
3238 int hdrlen, len, recvd;
3243 status = decode_op_hdr(xdr, OP_READLINK);
3247 /* Convert length of symlink */
3250 if (len >= rcvbuf->page_len || len <= 0) {
3251 dprintk(KERN_WARNING "nfs: server returned giant symlink!\n");
3252 return -ENAMETOOLONG;
3254 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
3255 recvd = req->rq_rcv_buf.len - hdrlen;
3257 printk(KERN_WARNING "NFS: server cheating in readlink reply: "
3258 "count %u > recvd %u\n", len, recvd);
3261 xdr_read_pages(xdr, len);
3263 * The XDR encode routine has set things up so that
3264 * the link text will be copied directly into the
3265 * buffer. We just have to do overflow-checking,
3266 * and and null-terminate the text (the VFS expects
3267 * null-termination).
3269 kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0);
3270 kaddr[len+rcvbuf->page_base] = '\0';
3271 kunmap_atomic(kaddr, KM_USER0);
3275 static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3279 status = decode_op_hdr(xdr, OP_REMOVE);
3282 status = decode_change_info(xdr, cinfo);
3287 static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
3288 struct nfs4_change_info *new_cinfo)
3292 status = decode_op_hdr(xdr, OP_RENAME);
3295 if ((status = decode_change_info(xdr, old_cinfo)))
3297 status = decode_change_info(xdr, new_cinfo);
3302 static int decode_renew(struct xdr_stream *xdr)
3304 return decode_op_hdr(xdr, OP_RENEW);
3308 decode_restorefh(struct xdr_stream *xdr)
3310 return decode_op_hdr(xdr, OP_RESTOREFH);
3313 static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
3319 struct kvec *iov = req->rq_rcv_buf.head;
3323 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3325 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3327 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3330 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
3332 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
3335 /* We ignore &savep and don't do consistency checks on
3336 * the attr length. Let userspace figure it out.... */
3337 hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base;
3338 recvd = req->rq_rcv_buf.len - hdrlen;
3339 if (attrlen > recvd) {
3340 printk(KERN_WARNING "NFS: server cheating in getattr"
3341 " acl reply: attrlen %u > recvd %u\n",
3345 if (attrlen <= *acl_len)
3346 xdr_read_pages(xdr, attrlen);
3349 status = -EOPNOTSUPP;
3356 decode_savefh(struct xdr_stream *xdr)
3358 return decode_op_hdr(xdr, OP_SAVEFH);
3361 static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res)
3368 status = decode_op_hdr(xdr, OP_SETATTR);
3373 READ_BUF(bmlen << 2);
3377 static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_client *clp)
3385 if (opnum != OP_SETCLIENTID) {
3387 "nfs4_decode_setclientid: Server returned operation"
3392 if (nfserr == NFS_OK) {
3393 READ_BUF(8 + sizeof(clp->cl_confirm.data));
3394 READ64(clp->cl_clientid);
3395 COPYMEM(clp->cl_confirm.data, sizeof(clp->cl_confirm.data));
3396 } else if (nfserr == NFSERR_CLID_INUSE) {
3399 /* skip netid string */
3404 /* skip uaddr string */
3408 return -NFSERR_CLID_INUSE;
3410 return -nfs_stat_to_errno(nfserr);
3415 static int decode_setclientid_confirm(struct xdr_stream *xdr)
3417 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
3420 static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
3425 status = decode_op_hdr(xdr, OP_WRITE);
3431 READ32(res->verf->committed);
3432 COPYMEM(res->verf->verifier, 8);
3436 static int decode_delegreturn(struct xdr_stream *xdr)
3438 return decode_op_hdr(xdr, OP_DELEGRETURN);
3442 * Decode OPEN_DOWNGRADE response
3444 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res)
3446 struct xdr_stream xdr;
3447 struct compound_hdr hdr;
3450 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3451 status = decode_compound_hdr(&xdr, &hdr);
3454 status = decode_putfh(&xdr);
3457 status = decode_open_downgrade(&xdr, res);
3460 decode_getfattr(&xdr, res->fattr, res->server);
3466 * END OF "GENERIC" DECODE ROUTINES.
3470 * Decode ACCESS response
3472 static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_accessres *res)
3474 struct xdr_stream xdr;
3475 struct compound_hdr hdr;
3478 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3479 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3481 if ((status = decode_putfh(&xdr)) == 0)
3482 status = decode_access(&xdr, res);
3488 * Decode LOOKUP response
3490 static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res)
3492 struct xdr_stream xdr;
3493 struct compound_hdr hdr;
3496 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3497 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3499 if ((status = decode_putfh(&xdr)) != 0)
3501 if ((status = decode_lookup(&xdr)) != 0)
3503 if ((status = decode_getfh(&xdr, res->fh)) != 0)
3505 status = decode_getfattr(&xdr, res->fattr, res->server);
3511 * Decode LOOKUP_ROOT response
3513 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res)
3515 struct xdr_stream xdr;
3516 struct compound_hdr hdr;
3519 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3520 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3522 if ((status = decode_putrootfh(&xdr)) != 0)
3524 if ((status = decode_getfh(&xdr, res->fh)) == 0)
3525 status = decode_getfattr(&xdr, res->fattr, res->server);
3531 * Decode REMOVE response
3533 static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_remove_res *res)
3535 struct xdr_stream xdr;
3536 struct compound_hdr hdr;
3539 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3540 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3542 if ((status = decode_putfh(&xdr)) != 0)
3544 if ((status = decode_remove(&xdr, &res->cinfo)) != 0)
3546 decode_getfattr(&xdr, res->dir_attr, res->server);
3552 * Decode RENAME response
3554 static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_rename_res *res)
3556 struct xdr_stream xdr;
3557 struct compound_hdr hdr;
3560 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3561 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3563 if ((status = decode_putfh(&xdr)) != 0)
3565 if ((status = decode_savefh(&xdr)) != 0)
3567 if ((status = decode_putfh(&xdr)) != 0)
3569 if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0)
3571 /* Current FH is target directory */
3572 if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0)
3574 if ((status = decode_restorefh(&xdr)) != 0)
3576 decode_getfattr(&xdr, res->old_fattr, res->server);
3582 * Decode LINK response
3584 static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_link_res *res)
3586 struct xdr_stream xdr;
3587 struct compound_hdr hdr;
3590 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3591 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3593 if ((status = decode_putfh(&xdr)) != 0)
3595 if ((status = decode_savefh(&xdr)) != 0)
3597 if ((status = decode_putfh(&xdr)) != 0)
3599 if ((status = decode_link(&xdr, &res->cinfo)) != 0)
3602 * Note order: OP_LINK leaves the directory as the current
3605 if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0)
3607 if ((status = decode_restorefh(&xdr)) != 0)
3609 decode_getfattr(&xdr, res->fattr, res->server);
3615 * Decode CREATE response
3617 static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res)
3619 struct xdr_stream xdr;
3620 struct compound_hdr hdr;
3623 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3624 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3626 if ((status = decode_putfh(&xdr)) != 0)
3628 if ((status = decode_savefh(&xdr)) != 0)
3630 if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0)
3632 if ((status = decode_getfh(&xdr, res->fh)) != 0)
3634 if (decode_getfattr(&xdr, res->fattr, res->server) != 0)
3636 if ((status = decode_restorefh(&xdr)) != 0)
3638 decode_getfattr(&xdr, res->dir_fattr, res->server);
3644 * Decode SYMLINK response
3646 static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res)
3648 return nfs4_xdr_dec_create(rqstp, p, res);
3652 * Decode GETATTR response
3654 static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_getattr_res *res)
3656 struct xdr_stream xdr;
3657 struct compound_hdr hdr;
3660 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3661 status = decode_compound_hdr(&xdr, &hdr);
3664 status = decode_putfh(&xdr);
3667 status = decode_getfattr(&xdr, res->fattr, res->server);
3674 * Encode an SETACL request
3677 nfs4_xdr_enc_setacl(struct rpc_rqst *req, uint32_t *p, struct nfs_setaclargs *args)
3679 struct xdr_stream xdr;
3680 struct compound_hdr hdr = {
3685 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
3686 encode_compound_hdr(&xdr, &hdr);
3687 status = encode_putfh(&xdr, args->fh);
3690 status = encode_setacl(&xdr, args);
3695 * Decode SETACL response
3698 nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, uint32_t *p, void *res)
3700 struct xdr_stream xdr;
3701 struct compound_hdr hdr;
3704 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3705 status = decode_compound_hdr(&xdr, &hdr);
3708 status = decode_putfh(&xdr);
3711 status = decode_setattr(&xdr, res);
3717 * Decode GETACL response
3720 nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, uint32_t *p, size_t *acl_len)
3722 struct xdr_stream xdr;
3723 struct compound_hdr hdr;
3726 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3727 status = decode_compound_hdr(&xdr, &hdr);
3730 status = decode_putfh(&xdr);
3733 status = decode_getacl(&xdr, rqstp, acl_len);
3740 * Decode CLOSE response
3742 static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res)
3744 struct xdr_stream xdr;
3745 struct compound_hdr hdr;
3748 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3749 status = decode_compound_hdr(&xdr, &hdr);
3752 status = decode_putfh(&xdr);
3755 status = decode_close(&xdr, res);
3759 * Note: Server may do delete on close for this file
3760 * in which case the getattr call will fail with
3761 * an ESTALE error. Shouldn't be a problem,
3762 * though, since fattr->valid will remain unset.
3764 decode_getfattr(&xdr, res->fattr, res->server);
3770 * Decode OPEN response
3772 static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res)
3774 struct xdr_stream xdr;
3775 struct compound_hdr hdr;
3778 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3779 status = decode_compound_hdr(&xdr, &hdr);
3782 status = decode_putfh(&xdr);
3785 status = decode_savefh(&xdr);
3788 status = decode_open(&xdr, res);
3791 status = decode_getfh(&xdr, &res->fh);
3794 if (decode_getfattr(&xdr, res->f_attr, res->server) != 0)
3796 if ((status = decode_restorefh(&xdr)) != 0)
3798 decode_getfattr(&xdr, res->dir_attr, res->server);
3804 * Decode OPEN_CONFIRM response
3806 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_open_confirmres *res)
3808 struct xdr_stream xdr;
3809 struct compound_hdr hdr;
3812 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3813 status = decode_compound_hdr(&xdr, &hdr);
3816 status = decode_putfh(&xdr);
3819 status = decode_open_confirm(&xdr, res);
3825 * Decode OPEN response
3827 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res)
3829 struct xdr_stream xdr;
3830 struct compound_hdr hdr;
3833 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3834 status = decode_compound_hdr(&xdr, &hdr);
3837 status = decode_putfh(&xdr);
3840 status = decode_open(&xdr, res);
3843 decode_getfattr(&xdr, res->f_attr, res->server);
3849 * Decode SETATTR response
3851 static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_setattrres *res)
3853 struct xdr_stream xdr;
3854 struct compound_hdr hdr;
3857 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3858 status = decode_compound_hdr(&xdr, &hdr);
3861 status = decode_putfh(&xdr);
3864 status = decode_setattr(&xdr, res);
3867 status = decode_getfattr(&xdr, res->fattr, res->server);
3868 if (status == NFS4ERR_DELAY)
3875 * Decode LOCK response
3877 static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lock_res *res)
3879 struct xdr_stream xdr;
3880 struct compound_hdr hdr;
3883 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3884 status = decode_compound_hdr(&xdr, &hdr);
3887 status = decode_putfh(&xdr);
3890 status = decode_lock(&xdr, res);
3896 * Decode LOCKT response
3898 static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockt_res *res)
3900 struct xdr_stream xdr;
3901 struct compound_hdr hdr;
3904 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3905 status = decode_compound_hdr(&xdr, &hdr);
3908 status = decode_putfh(&xdr);
3911 status = decode_lockt(&xdr, res);
3917 * Decode LOCKU response
3919 static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_locku_res *res)
3921 struct xdr_stream xdr;
3922 struct compound_hdr hdr;
3925 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3926 status = decode_compound_hdr(&xdr, &hdr);
3929 status = decode_putfh(&xdr);
3932 status = decode_locku(&xdr, res);
3938 * Decode READLINK response
3940 static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, uint32_t *p, void *res)
3942 struct xdr_stream xdr;
3943 struct compound_hdr hdr;
3946 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3947 status = decode_compound_hdr(&xdr, &hdr);
3950 status = decode_putfh(&xdr);
3953 status = decode_readlink(&xdr, rqstp);
3959 * Decode READDIR response
3961 static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_readdir_res *res)
3963 struct xdr_stream xdr;
3964 struct compound_hdr hdr;
3967 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3968 status = decode_compound_hdr(&xdr, &hdr);
3971 status = decode_putfh(&xdr);
3974 status = decode_readdir(&xdr, rqstp, res);
3980 * Decode Read response
3982 static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_readres *res)
3984 struct xdr_stream xdr;
3985 struct compound_hdr hdr;
3988 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3989 status = decode_compound_hdr(&xdr, &hdr);
3992 status = decode_putfh(&xdr);
3995 status = decode_read(&xdr, rqstp, res);
3997 status = res->count;
4003 * Decode WRITE response
4005 static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res)
4007 struct xdr_stream xdr;
4008 struct compound_hdr hdr;
4011 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4012 status = decode_compound_hdr(&xdr, &hdr);
4015 status = decode_putfh(&xdr);
4018 status = decode_write(&xdr, res);
4021 decode_getfattr(&xdr, res->fattr, res->server);
4023 status = res->count;
4029 * Decode COMMIT response
4031 static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res)
4033 struct xdr_stream xdr;
4034 struct compound_hdr hdr;
4037 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4038 status = decode_compound_hdr(&xdr, &hdr);
4041 status = decode_putfh(&xdr);
4044 status = decode_commit(&xdr, res);
4047 decode_getfattr(&xdr, res->fattr, res->server);
4055 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo)
4057 struct xdr_stream xdr;
4058 struct compound_hdr hdr;
4061 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4062 status = decode_compound_hdr(&xdr, &hdr);
4064 status = decode_putfh(&xdr);
4066 status = decode_fsinfo(&xdr, fsinfo);
4068 status = -nfs_stat_to_errno(hdr.status);
4075 static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, uint32_t *p, struct nfs_pathconf *pathconf)
4077 struct xdr_stream xdr;
4078 struct compound_hdr hdr;
4081 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4082 status = decode_compound_hdr(&xdr, &hdr);
4084 status = decode_putfh(&xdr);
4086 status = decode_pathconf(&xdr, pathconf);
4093 static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, uint32_t *p, struct nfs_fsstat *fsstat)
4095 struct xdr_stream xdr;
4096 struct compound_hdr hdr;
4099 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4100 status = decode_compound_hdr(&xdr, &hdr);
4102 status = decode_putfh(&xdr);
4104 status = decode_statfs(&xdr, fsstat);
4109 * GETATTR_BITMAP request
4111 static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, uint32_t *p, struct nfs4_server_caps_res *res)
4113 struct xdr_stream xdr;
4114 struct compound_hdr hdr;
4117 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4118 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
4120 if ((status = decode_putfh(&xdr)) != 0)
4122 status = decode_server_caps(&xdr, res);
4128 * Decode RENEW response
4130 static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, uint32_t *p, void *dummy)
4132 struct xdr_stream xdr;
4133 struct compound_hdr hdr;
4136 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4137 status = decode_compound_hdr(&xdr, &hdr);
4139 status = decode_renew(&xdr);
4144 * a SETCLIENTID request
4146 static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, uint32_t *p,
4147 struct nfs4_client *clp)
4149 struct xdr_stream xdr;
4150 struct compound_hdr hdr;
4153 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4154 status = decode_compound_hdr(&xdr, &hdr);
4156 status = decode_setclientid(&xdr, clp);
4158 status = -nfs_stat_to_errno(hdr.status);
4163 * a SETCLIENTID_CONFIRM request
4165 static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo)
4167 struct xdr_stream xdr;
4168 struct compound_hdr hdr;
4171 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4172 status = decode_compound_hdr(&xdr, &hdr);
4174 status = decode_setclientid_confirm(&xdr);
4176 status = decode_putrootfh(&xdr);
4178 status = decode_fsinfo(&xdr, fsinfo);
4180 status = -nfs_stat_to_errno(hdr.status);
4185 * DELEGRETURN request
4187 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, void *dummy)
4189 struct xdr_stream xdr;
4190 struct compound_hdr hdr;
4193 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4194 status = decode_compound_hdr(&xdr, &hdr);
4196 status = decode_putfh(&xdr);
4198 status = decode_delegreturn(&xdr);
4203 uint32_t *nfs4_decode_dirent(uint32_t *p, struct nfs_entry *entry, int plus)
4205 uint32_t bitmap[2] = {0};
4210 return ERR_PTR(-EAGAIN);
4212 return ERR_PTR(-EBADCOOKIE);
4215 entry->prev_cookie = entry->cookie;
4216 p = xdr_decode_hyper(p, &entry->cookie);
4217 entry->len = ntohl(*p++);
4218 entry->name = (const char *) p;
4219 p += XDR_QUADLEN(entry->len);
4222 * In case the server doesn't return an inode number,
4223 * we fake one here. (We don't use inode number 0,
4224 * since glibc seems to choke on it...)
4228 len = ntohl(*p++); /* bitmap length */
4230 bitmap[0] = ntohl(*p++);
4232 bitmap[1] = ntohl(*p++);
4236 len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */
4238 if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) {
4239 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
4240 /* Ignore the return value of rdattr_error for now */
4244 if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID)
4245 xdr_decode_hyper(p, &entry->ino);
4246 else if (bitmap[0] == FATTR4_WORD0_FILEID)
4247 xdr_decode_hyper(p, &entry->ino);
4251 entry->eof = !p[0] && p[1];
4256 * We need to translate between nfs status return values and
4257 * the local errno values which may not be the same.
4264 { NFS4ERR_PERM, EPERM },
4265 { NFS4ERR_NOENT, ENOENT },
4266 { NFS4ERR_IO, errno_NFSERR_IO },
4267 { NFS4ERR_NXIO, ENXIO },
4268 { NFS4ERR_ACCESS, EACCES },
4269 { NFS4ERR_EXIST, EEXIST },
4270 { NFS4ERR_XDEV, EXDEV },
4271 { NFS4ERR_NOTDIR, ENOTDIR },
4272 { NFS4ERR_ISDIR, EISDIR },
4273 { NFS4ERR_INVAL, EINVAL },
4274 { NFS4ERR_FBIG, EFBIG },
4275 { NFS4ERR_NOSPC, ENOSPC },
4276 { NFS4ERR_ROFS, EROFS },
4277 { NFS4ERR_MLINK, EMLINK },
4278 { NFS4ERR_NAMETOOLONG, ENAMETOOLONG },
4279 { NFS4ERR_NOTEMPTY, ENOTEMPTY },
4280 { NFS4ERR_DQUOT, EDQUOT },
4281 { NFS4ERR_STALE, ESTALE },
4282 { NFS4ERR_BADHANDLE, EBADHANDLE },
4283 { NFS4ERR_BADOWNER, EINVAL },
4284 { NFS4ERR_BADNAME, EINVAL },
4285 { NFS4ERR_BAD_COOKIE, EBADCOOKIE },
4286 { NFS4ERR_NOTSUPP, ENOTSUPP },
4287 { NFS4ERR_TOOSMALL, ETOOSMALL },
4288 { NFS4ERR_SERVERFAULT, ESERVERFAULT },
4289 { NFS4ERR_BADTYPE, EBADTYPE },
4290 { NFS4ERR_LOCKED, EAGAIN },
4291 { NFS4ERR_RESOURCE, EREMOTEIO },
4292 { NFS4ERR_SYMLINK, ELOOP },
4293 { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP },
4294 { NFS4ERR_DEADLOCK, EDEADLK },
4295 { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs
4296 * to be handled by a
4303 * Convert an NFS error code to a local one.
4304 * This one is used jointly by NFSv2 and NFSv3.
4307 nfs_stat_to_errno(int stat)
4310 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
4311 if (nfs_errtbl[i].stat == stat)
4312 return nfs_errtbl[i].errno;
4314 if (stat <= 10000 || stat > 10100) {
4315 /* The server is looney tunes. */
4316 return ESERVERFAULT;
4318 /* If we cannot translate the error, the recovery routines should
4320 * Note: remaining NFSv4 error codes have values > 10000, so should
4321 * not conflict with native Linux error codes.
4327 # define MAX(a, b) (((a) > (b))? (a) : (b))
4330 #define PROC(proc, argtype, restype) \
4331 [NFSPROC4_CLNT_##proc] = { \
4332 .p_proc = NFSPROC4_COMPOUND, \
4333 .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \
4334 .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \
4335 .p_bufsiz = MAX(NFS4_##argtype##_sz,NFS4_##restype##_sz) << 2, \
4338 struct rpc_procinfo nfs4_procedures[] = {
4339 PROC(READ, enc_read, dec_read),
4340 PROC(WRITE, enc_write, dec_write),
4341 PROC(COMMIT, enc_commit, dec_commit),
4342 PROC(OPEN, enc_open, dec_open),
4343 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
4344 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
4345 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
4346 PROC(CLOSE, enc_close, dec_close),
4347 PROC(SETATTR, enc_setattr, dec_setattr),
4348 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
4349 PROC(RENEW, enc_renew, dec_renew),
4350 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
4351 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
4352 PROC(LOCK, enc_lock, dec_lock),
4353 PROC(LOCKT, enc_lockt, dec_lockt),
4354 PROC(LOCKU, enc_locku, dec_locku),
4355 PROC(ACCESS, enc_access, dec_access),
4356 PROC(GETATTR, enc_getattr, dec_getattr),
4357 PROC(LOOKUP, enc_lookup, dec_lookup),
4358 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
4359 PROC(REMOVE, enc_remove, dec_remove),
4360 PROC(RENAME, enc_rename, dec_rename),
4361 PROC(LINK, enc_link, dec_link),
4362 PROC(SYMLINK, enc_symlink, dec_symlink),
4363 PROC(CREATE, enc_create, dec_create),
4364 PROC(PATHCONF, enc_pathconf, dec_pathconf),
4365 PROC(STATFS, enc_statfs, dec_statfs),
4366 PROC(READLINK, enc_readlink, dec_readlink),
4367 PROC(READDIR, enc_readdir, dec_readdir),
4368 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
4369 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
4370 PROC(GETACL, enc_getacl, dec_getacl),
4371 PROC(SETACL, enc_setacl, dec_setacl),
4374 struct rpc_version nfs_version4 = {
4376 .nrprocs = sizeof(nfs4_procedures)/sizeof(nfs4_procedures[0]),
4377 .procs = nfs4_procedures