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);
746 * opcode,type,reclaim,offset,length,new_lock_owner = 32
747 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
749 static int encode_lock(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
752 struct nfs_lock_opargs *opargs = arg->u.lock;
757 WRITE32(opargs->reclaim);
758 WRITE64(arg->offset);
759 WRITE64(arg->length);
760 WRITE32(opargs->new_lock_owner);
761 if (opargs->new_lock_owner){
763 WRITE32(opargs->open_seqid->sequence->counter);
764 WRITEMEM(opargs->open_stateid->data, sizeof(opargs->open_stateid->data));
765 WRITE32(opargs->lock_seqid->sequence->counter);
766 WRITE64(opargs->lock_owner.clientid);
768 WRITE32(opargs->lock_owner.id);
772 WRITEMEM(opargs->lock_stateid->data, sizeof(opargs->lock_stateid->data));
773 WRITE32(opargs->lock_seqid->sequence->counter);
779 static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
782 struct nfs_lowner *opargs = arg->u.lockt;
787 WRITE64(arg->offset);
788 WRITE64(arg->length);
789 WRITE64(opargs->clientid);
796 static int encode_locku(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
799 struct nfs_locku_opargs *opargs = arg->u.locku;
804 WRITE32(opargs->seqid->sequence->counter);
805 WRITEMEM(opargs->stateid->data, sizeof(opargs->stateid->data));
806 WRITE64(arg->offset);
807 WRITE64(arg->length);
812 static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name)
817 RESERVE_SPACE(8 + len);
820 WRITEMEM(name->name, len);
825 static void encode_share_access(struct xdr_stream *xdr, int open_flags)
830 switch (open_flags & (FMODE_READ|FMODE_WRITE)) {
832 WRITE32(NFS4_SHARE_ACCESS_READ);
835 WRITE32(NFS4_SHARE_ACCESS_WRITE);
837 case FMODE_READ|FMODE_WRITE:
838 WRITE32(NFS4_SHARE_ACCESS_BOTH);
843 WRITE32(0); /* for linux, share_deny = 0 always */
846 static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
850 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
855 WRITE32(arg->seqid->sequence->counter);
856 encode_share_access(xdr, arg->open_flags);
858 WRITE64(arg->clientid);
863 static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
868 switch(arg->open_flags & O_EXCL) {
870 WRITE32(NFS4_CREATE_UNCHECKED);
871 encode_attrs(xdr, arg->u.attrs, arg->server);
874 WRITE32(NFS4_CREATE_EXCLUSIVE);
875 encode_nfs4_verifier(xdr, &arg->u.verifier);
879 static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
884 switch (arg->open_flags & O_CREAT) {
886 WRITE32(NFS4_OPEN_NOCREATE);
889 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
890 WRITE32(NFS4_OPEN_CREATE);
891 encode_createmode(xdr, arg);
895 static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type)
900 switch (delegation_type) {
902 WRITE32(NFS4_OPEN_DELEGATE_NONE);
905 WRITE32(NFS4_OPEN_DELEGATE_READ);
907 case FMODE_WRITE|FMODE_READ:
908 WRITE32(NFS4_OPEN_DELEGATE_WRITE);
915 static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
920 WRITE32(NFS4_OPEN_CLAIM_NULL);
921 encode_string(xdr, name->len, name->name);
924 static inline void encode_claim_previous(struct xdr_stream *xdr, int type)
929 WRITE32(NFS4_OPEN_CLAIM_PREVIOUS);
930 encode_delegation_type(xdr, type);
933 static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
937 RESERVE_SPACE(4+sizeof(stateid->data));
938 WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
939 WRITEMEM(stateid->data, sizeof(stateid->data));
940 encode_string(xdr, name->len, name->name);
943 static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg)
945 encode_openhdr(xdr, arg);
946 encode_opentype(xdr, arg);
947 switch (arg->claim) {
948 case NFS4_OPEN_CLAIM_NULL:
949 encode_claim_null(xdr, arg->name);
951 case NFS4_OPEN_CLAIM_PREVIOUS:
952 encode_claim_previous(xdr, arg->u.delegation_type);
954 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
955 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
963 static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg)
967 RESERVE_SPACE(8+sizeof(arg->stateid->data));
968 WRITE32(OP_OPEN_CONFIRM);
969 WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
970 WRITE32(arg->seqid->sequence->counter);
975 static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg)
979 RESERVE_SPACE(8+sizeof(arg->stateid->data));
980 WRITE32(OP_OPEN_DOWNGRADE);
981 WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
982 WRITE32(arg->seqid->sequence->counter);
983 encode_share_access(xdr, arg->open_flags);
988 encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh)
993 RESERVE_SPACE(8 + len);
996 WRITEMEM(fh->data, len);
1001 static int encode_putrootfh(struct xdr_stream *xdr)
1006 WRITE32(OP_PUTROOTFH);
1011 static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx)
1013 nfs4_stateid stateid;
1017 if (ctx->state != NULL) {
1018 nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner);
1019 WRITEMEM(stateid.data, sizeof(stateid.data));
1021 WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data));
1024 static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args)
1031 encode_stateid(xdr, args->context);
1034 WRITE64(args->offset);
1035 WRITE32(args->count);
1040 static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req)
1042 struct rpc_auth *auth = req->rq_task->tk_auth;
1043 uint32_t attrs[2] = {
1044 FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID,
1045 FATTR4_WORD1_MOUNTED_ON_FILEID,
1050 RESERVE_SPACE(32+sizeof(nfs4_verifier));
1051 WRITE32(OP_READDIR);
1052 WRITE64(readdir->cookie);
1053 WRITEMEM(readdir->verifier.data, sizeof(readdir->verifier.data));
1054 WRITE32(readdir->count >> 1); /* We're not doing readdirplus */
1055 WRITE32(readdir->count);
1057 /* Switch to mounted_on_fileid if the server supports it */
1058 if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)
1059 attrs[0] &= ~FATTR4_WORD0_FILEID;
1061 attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
1062 WRITE32(attrs[0] & readdir->bitmask[0]);
1063 WRITE32(attrs[1] & readdir->bitmask[1]);
1064 dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n",
1066 (unsigned long long)readdir->cookie,
1067 ((u32 *)readdir->verifier.data)[0],
1068 ((u32 *)readdir->verifier.data)[1],
1069 attrs[0] & readdir->bitmask[0],
1070 attrs[1] & readdir->bitmask[1]);
1072 /* set up reply kvec
1073 * toplevel_status + taglen + rescount + OP_PUTFH + status
1074 * + OP_READDIR + status + verifer(2) = 9
1076 replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2;
1077 xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages,
1078 readdir->pgbase, readdir->count);
1079 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
1080 __FUNCTION__, replen, readdir->pages,
1081 readdir->pgbase, readdir->count);
1086 static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req)
1088 struct rpc_auth *auth = req->rq_task->tk_auth;
1089 unsigned int replen;
1093 WRITE32(OP_READLINK);
1095 /* set up reply kvec
1096 * toplevel_status + taglen + rescount + OP_PUTFH + status
1097 * + OP_READLINK + status + string length = 8
1099 replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2;
1100 xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages,
1101 readlink->pgbase, readlink->pglen);
1106 static int encode_remove(struct xdr_stream *xdr, const struct qstr *name)
1110 RESERVE_SPACE(8 + name->len);
1113 WRITEMEM(name->name, name->len);
1118 static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname)
1122 RESERVE_SPACE(8 + oldname->len);
1124 WRITE32(oldname->len);
1125 WRITEMEM(oldname->name, oldname->len);
1127 RESERVE_SPACE(4 + newname->len);
1128 WRITE32(newname->len);
1129 WRITEMEM(newname->name, newname->len);
1134 static int encode_renew(struct xdr_stream *xdr, const struct nfs4_client *client_stateid)
1140 WRITE64(client_stateid->cl_clientid);
1146 encode_restorefh(struct xdr_stream *xdr)
1151 WRITE32(OP_RESTOREFH);
1157 encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg)
1161 RESERVE_SPACE(4+sizeof(zero_stateid.data));
1162 WRITE32(OP_SETATTR);
1163 WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data));
1166 WRITE32(FATTR4_WORD0_ACL);
1167 if (arg->acl_len % 4)
1170 WRITE32(arg->acl_len);
1171 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
1176 encode_savefh(struct xdr_stream *xdr)
1186 static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server)
1191 RESERVE_SPACE(4+sizeof(arg->stateid.data));
1192 WRITE32(OP_SETATTR);
1193 WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
1195 if ((status = encode_attrs(xdr, arg->iap, server)))
1201 static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid)
1205 RESERVE_SPACE(4 + sizeof(setclientid->sc_verifier->data));
1206 WRITE32(OP_SETCLIENTID);
1207 WRITEMEM(setclientid->sc_verifier->data, sizeof(setclientid->sc_verifier->data));
1209 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
1211 WRITE32(setclientid->sc_prog);
1212 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1213 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
1215 WRITE32(setclientid->sc_cb_ident);
1220 static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_client *client_state)
1224 RESERVE_SPACE(12 + sizeof(client_state->cl_confirm.data));
1225 WRITE32(OP_SETCLIENTID_CONFIRM);
1226 WRITE64(client_state->cl_clientid);
1227 WRITEMEM(client_state->cl_confirm.data, sizeof(client_state->cl_confirm.data));
1232 static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args)
1239 encode_stateid(xdr, args->context);
1242 WRITE64(args->offset);
1243 WRITE32(args->stable);
1244 WRITE32(args->count);
1246 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
1251 static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid)
1257 WRITE32(OP_DELEGRETURN);
1258 WRITEMEM(stateid->data, sizeof(stateid->data));
1263 * END OF "GENERIC" ENCODE ROUTINES.
1267 * Encode an ACCESS request
1269 static int nfs4_xdr_enc_access(struct rpc_rqst *req, uint32_t *p, const struct nfs4_accessargs *args)
1271 struct xdr_stream xdr;
1272 struct compound_hdr hdr = {
1277 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1278 encode_compound_hdr(&xdr, &hdr);
1279 if ((status = encode_putfh(&xdr, args->fh)) == 0)
1280 status = encode_access(&xdr, args->access);
1285 * Encode LOOKUP request
1287 static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_arg *args)
1289 struct xdr_stream xdr;
1290 struct compound_hdr hdr = {
1295 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1296 encode_compound_hdr(&xdr, &hdr);
1297 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1299 if ((status = encode_lookup(&xdr, args->name)) != 0)
1301 if ((status = encode_getfh(&xdr)) != 0)
1303 status = encode_getfattr(&xdr, args->bitmask);
1309 * Encode LOOKUP_ROOT request
1311 static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_root_arg *args)
1313 struct xdr_stream xdr;
1314 struct compound_hdr hdr = {
1319 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1320 encode_compound_hdr(&xdr, &hdr);
1321 if ((status = encode_putrootfh(&xdr)) != 0)
1323 if ((status = encode_getfh(&xdr)) == 0)
1324 status = encode_getfattr(&xdr, args->bitmask);
1330 * Encode REMOVE request
1332 static int nfs4_xdr_enc_remove(struct rpc_rqst *req, uint32_t *p, const struct nfs4_remove_arg *args)
1334 struct xdr_stream xdr;
1335 struct compound_hdr hdr = {
1340 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1341 encode_compound_hdr(&xdr, &hdr);
1342 if ((status = encode_putfh(&xdr, args->fh)) != 0)
1344 if ((status = encode_remove(&xdr, args->name)) != 0)
1346 status = encode_getfattr(&xdr, args->bitmask);
1352 * Encode RENAME request
1354 static int nfs4_xdr_enc_rename(struct rpc_rqst *req, uint32_t *p, const struct nfs4_rename_arg *args)
1356 struct xdr_stream xdr;
1357 struct compound_hdr hdr = {
1362 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1363 encode_compound_hdr(&xdr, &hdr);
1364 if ((status = encode_putfh(&xdr, args->old_dir)) != 0)
1366 if ((status = encode_savefh(&xdr)) != 0)
1368 if ((status = encode_putfh(&xdr, args->new_dir)) != 0)
1370 if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0)
1372 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
1374 if ((status = encode_restorefh(&xdr)) != 0)
1376 status = encode_getfattr(&xdr, args->bitmask);
1382 * Encode LINK request
1384 static int nfs4_xdr_enc_link(struct rpc_rqst *req, uint32_t *p, const struct nfs4_link_arg *args)
1386 struct xdr_stream xdr;
1387 struct compound_hdr hdr = {
1392 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1393 encode_compound_hdr(&xdr, &hdr);
1394 if ((status = encode_putfh(&xdr, args->fh)) != 0)
1396 if ((status = encode_savefh(&xdr)) != 0)
1398 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1400 if ((status = encode_link(&xdr, args->name)) != 0)
1402 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
1404 if ((status = encode_restorefh(&xdr)) != 0)
1406 status = encode_getfattr(&xdr, args->bitmask);
1412 * Encode CREATE request
1414 static int nfs4_xdr_enc_create(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args)
1416 struct xdr_stream xdr;
1417 struct compound_hdr hdr = {
1422 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1423 encode_compound_hdr(&xdr, &hdr);
1424 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1426 if ((status = encode_savefh(&xdr)) != 0)
1428 if ((status = encode_create(&xdr, args)) != 0)
1430 if ((status = encode_getfh(&xdr)) != 0)
1432 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
1434 if ((status = encode_restorefh(&xdr)) != 0)
1436 status = encode_getfattr(&xdr, args->bitmask);
1442 * Encode SYMLINK request
1444 static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args)
1446 return nfs4_xdr_enc_create(req, p, args);
1450 * Encode GETATTR request
1452 static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, uint32_t *p, const struct nfs4_getattr_arg *args)
1454 struct xdr_stream xdr;
1455 struct compound_hdr hdr = {
1460 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1461 encode_compound_hdr(&xdr, &hdr);
1462 if ((status = encode_putfh(&xdr, args->fh)) == 0)
1463 status = encode_getfattr(&xdr, args->bitmask);
1468 * Encode a CLOSE request
1470 static int nfs4_xdr_enc_close(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args)
1472 struct xdr_stream xdr;
1473 struct compound_hdr hdr = {
1478 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1479 encode_compound_hdr(&xdr, &hdr);
1480 status = encode_putfh(&xdr, args->fh);
1483 status = encode_close(&xdr, args);
1486 status = encode_getfattr(&xdr, args->bitmask);
1492 * Encode an OPEN request
1494 static int nfs4_xdr_enc_open(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args)
1496 struct xdr_stream xdr;
1497 struct compound_hdr hdr = {
1502 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1503 encode_compound_hdr(&xdr, &hdr);
1504 status = encode_putfh(&xdr, args->fh);
1507 status = encode_savefh(&xdr);
1510 status = encode_open(&xdr, args);
1513 status = encode_getfh(&xdr);
1516 status = encode_getfattr(&xdr, args->bitmask);
1519 status = encode_restorefh(&xdr);
1522 status = encode_getfattr(&xdr, args->bitmask);
1528 * Encode an OPEN_CONFIRM request
1530 static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_open_confirmargs *args)
1532 struct xdr_stream xdr;
1533 struct compound_hdr hdr = {
1538 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1539 encode_compound_hdr(&xdr, &hdr);
1540 status = encode_putfh(&xdr, args->fh);
1543 status = encode_open_confirm(&xdr, args);
1549 * Encode an OPEN request with no attributes.
1551 static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args)
1553 struct xdr_stream xdr;
1554 struct compound_hdr hdr = {
1559 status = nfs_wait_on_sequence(args->seqid, req->rq_task);
1562 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1563 encode_compound_hdr(&xdr, &hdr);
1564 status = encode_putfh(&xdr, args->fh);
1567 status = encode_open(&xdr, args);
1573 * Encode an OPEN_DOWNGRADE request
1575 static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args)
1577 struct xdr_stream xdr;
1578 struct compound_hdr hdr = {
1583 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1584 encode_compound_hdr(&xdr, &hdr);
1585 status = encode_putfh(&xdr, args->fh);
1588 status = encode_open_downgrade(&xdr, args);
1591 status = encode_getfattr(&xdr, args->bitmask);
1597 * Encode a LOCK request
1599 static int nfs4_xdr_enc_lock(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args)
1601 struct xdr_stream xdr;
1602 struct compound_hdr hdr = {
1605 struct nfs_lock_opargs *opargs = args->u.lock;
1608 status = nfs_wait_on_sequence(opargs->lock_seqid, req->rq_task);
1611 /* Do we need to do an open_to_lock_owner? */
1612 if (opargs->lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED)
1613 opargs->new_lock_owner = 0;
1614 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1615 encode_compound_hdr(&xdr, &hdr);
1616 status = encode_putfh(&xdr, args->fh);
1619 status = encode_lock(&xdr, args);
1625 * Encode a LOCKT request
1627 static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args)
1629 struct xdr_stream xdr;
1630 struct compound_hdr hdr = {
1635 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1636 encode_compound_hdr(&xdr, &hdr);
1637 status = encode_putfh(&xdr, args->fh);
1640 status = encode_lockt(&xdr, args);
1646 * Encode a LOCKU request
1648 static int nfs4_xdr_enc_locku(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args)
1650 struct xdr_stream xdr;
1651 struct compound_hdr hdr = {
1656 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1657 encode_compound_hdr(&xdr, &hdr);
1658 status = encode_putfh(&xdr, args->fh);
1661 status = encode_locku(&xdr, args);
1667 * Encode a READLINK request
1669 static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readlink *args)
1671 struct xdr_stream xdr;
1672 struct compound_hdr hdr = {
1677 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1678 encode_compound_hdr(&xdr, &hdr);
1679 status = encode_putfh(&xdr, args->fh);
1682 status = encode_readlink(&xdr, args, req);
1688 * Encode a READDIR request
1690 static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readdir_arg *args)
1692 struct xdr_stream xdr;
1693 struct compound_hdr hdr = {
1698 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1699 encode_compound_hdr(&xdr, &hdr);
1700 status = encode_putfh(&xdr, args->fh);
1703 status = encode_readdir(&xdr, args, req);
1709 * Encode a READ request
1711 static int nfs4_xdr_enc_read(struct rpc_rqst *req, uint32_t *p, struct nfs_readargs *args)
1713 struct rpc_auth *auth = req->rq_task->tk_auth;
1714 struct xdr_stream xdr;
1715 struct compound_hdr hdr = {
1720 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1721 encode_compound_hdr(&xdr, &hdr);
1722 status = encode_putfh(&xdr, args->fh);
1725 status = encode_read(&xdr, args);
1729 /* set up reply kvec
1730 * toplevel status + taglen=0 + rescount + OP_PUTFH + status
1731 * + OP_READ + status + eof + datalen = 9
1733 replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2;
1734 xdr_inline_pages(&req->rq_rcv_buf, replen,
1735 args->pages, args->pgbase, args->count);
1741 * Encode an SETATTR request
1743 static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, uint32_t *p, struct nfs_setattrargs *args)
1746 struct xdr_stream xdr;
1747 struct compound_hdr hdr = {
1752 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1753 encode_compound_hdr(&xdr, &hdr);
1754 status = encode_putfh(&xdr, args->fh);
1757 status = encode_setattr(&xdr, args, args->server);
1760 status = encode_getfattr(&xdr, args->bitmask);
1766 * Encode a GETACL request
1769 nfs4_xdr_enc_getacl(struct rpc_rqst *req, uint32_t *p,
1770 struct nfs_getaclargs *args)
1772 struct xdr_stream xdr;
1773 struct rpc_auth *auth = req->rq_task->tk_auth;
1774 struct compound_hdr hdr = {
1779 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1780 encode_compound_hdr(&xdr, &hdr);
1781 status = encode_putfh(&xdr, args->fh);
1784 status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0);
1785 /* set up reply buffer: */
1786 replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2;
1787 xdr_inline_pages(&req->rq_rcv_buf, replen,
1788 args->acl_pages, args->acl_pgbase, args->acl_len);
1794 * Encode a WRITE request
1796 static int nfs4_xdr_enc_write(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args)
1798 struct xdr_stream xdr;
1799 struct compound_hdr hdr = {
1804 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1805 encode_compound_hdr(&xdr, &hdr);
1806 status = encode_putfh(&xdr, args->fh);
1809 status = encode_write(&xdr, args);
1812 status = encode_getfattr(&xdr, args->bitmask);
1820 static int nfs4_xdr_enc_commit(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args)
1822 struct xdr_stream xdr;
1823 struct compound_hdr hdr = {
1828 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1829 encode_compound_hdr(&xdr, &hdr);
1830 status = encode_putfh(&xdr, args->fh);
1833 status = encode_commit(&xdr, args);
1836 status = encode_getfattr(&xdr, args->bitmask);
1844 static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs4_fsinfo_arg *args)
1846 struct xdr_stream xdr;
1847 struct compound_hdr hdr = {
1852 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1853 encode_compound_hdr(&xdr, &hdr);
1854 status = encode_putfh(&xdr, args->fh);
1856 status = encode_fsinfo(&xdr, args->bitmask);
1861 * a PATHCONF request
1863 static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, uint32_t *p, const struct nfs4_pathconf_arg *args)
1865 struct xdr_stream xdr;
1866 struct compound_hdr hdr = {
1871 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1872 encode_compound_hdr(&xdr, &hdr);
1873 status = encode_putfh(&xdr, args->fh);
1875 status = encode_getattr_one(&xdr,
1876 args->bitmask[0] & nfs4_pathconf_bitmap[0]);
1883 static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, uint32_t *p, const struct nfs4_statfs_arg *args)
1885 struct xdr_stream xdr;
1886 struct compound_hdr hdr = {
1891 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1892 encode_compound_hdr(&xdr, &hdr);
1893 status = encode_putfh(&xdr, args->fh);
1895 status = encode_getattr_two(&xdr,
1896 args->bitmask[0] & nfs4_statfs_bitmap[0],
1897 args->bitmask[1] & nfs4_statfs_bitmap[1]);
1902 * GETATTR_BITMAP request
1904 static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, uint32_t *p, const struct nfs_fh *fhandle)
1906 struct xdr_stream xdr;
1907 struct compound_hdr hdr = {
1912 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1913 encode_compound_hdr(&xdr, &hdr);
1914 status = encode_putfh(&xdr, fhandle);
1916 status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
1917 FATTR4_WORD0_LINK_SUPPORT|
1918 FATTR4_WORD0_SYMLINK_SUPPORT|
1919 FATTR4_WORD0_ACLSUPPORT);
1926 static int nfs4_xdr_enc_renew(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp)
1928 struct xdr_stream xdr;
1929 struct compound_hdr hdr = {
1933 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1934 encode_compound_hdr(&xdr, &hdr);
1935 return encode_renew(&xdr, clp);
1939 * a SETCLIENTID request
1941 static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, uint32_t *p, struct nfs4_setclientid *sc)
1943 struct xdr_stream xdr;
1944 struct compound_hdr hdr = {
1948 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1949 encode_compound_hdr(&xdr, &hdr);
1950 return encode_setclientid(&xdr, sc);
1954 * a SETCLIENTID_CONFIRM request
1956 static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp)
1958 struct xdr_stream xdr;
1959 struct compound_hdr hdr = {
1962 const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
1965 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1966 encode_compound_hdr(&xdr, &hdr);
1967 status = encode_setclientid_confirm(&xdr, clp);
1969 status = encode_putrootfh(&xdr);
1971 status = encode_fsinfo(&xdr, lease_bitmap);
1976 * DELEGRETURN request
1978 static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, uint32_t *p, const struct nfs4_delegreturnargs *args)
1980 struct xdr_stream xdr;
1981 struct compound_hdr hdr = {
1986 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1987 encode_compound_hdr(&xdr, &hdr);
1988 if ((status = encode_putfh(&xdr, args->fhandle)) == 0)
1989 status = encode_delegreturn(&xdr, args->stateid);
1994 * START OF "GENERIC" DECODE ROUTINES.
1995 * These may look a little ugly since they are imported from a "generic"
1996 * set of XDR encode/decode routines which are intended to be shared by
1997 * all of our NFSv4 implementations (OpenBSD, MacOS X...).
1999 * If the pain of reading these is too great, it should be a straightforward
2000 * task to translate them into Linux-specific versions which are more
2001 * consistent with the style used in NFSv2/v3...
2003 #define READ32(x) (x) = ntohl(*p++)
2004 #define READ64(x) do { \
2005 (x) = (u64)ntohl(*p++) << 32; \
2006 (x) |= ntohl(*p++); \
2008 #define READTIME(x) do { \
2010 (x.tv_sec) = ntohl(*p++); \
2011 (x.tv_nsec) = ntohl(*p++); \
2013 #define COPYMEM(x,nbytes) do { \
2014 memcpy((x), p, nbytes); \
2015 p += XDR_QUADLEN(nbytes); \
2018 #define READ_BUF(nbytes) do { \
2019 p = xdr_inline_decode(xdr, nbytes); \
2021 printk(KERN_WARNING "%s: reply buffer overflowed in line %d.", \
2022 __FUNCTION__, __LINE__); \
2027 static int decode_opaque_inline(struct xdr_stream *xdr, uint32_t *len, char **string)
2034 *string = (char *)p;
2038 static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
2043 READ32(hdr->status);
2044 READ32(hdr->taglen);
2046 READ_BUF(hdr->taglen + 4);
2047 hdr->tag = (char *)p;
2048 p += XDR_QUADLEN(hdr->taglen);
2053 static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
2061 if (opnum != expected) {
2063 "nfs4_decode_op_hdr: Server returned operation"
2064 " %d but we issued a request for %d\n",
2069 if (nfserr != NFS_OK)
2070 return -nfs_stat_to_errno(nfserr);
2075 static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs4_client *clp)
2082 return decode_opaque_inline(xdr, &strlen, &str);
2085 static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
2092 bitmap[0] = bitmap[1] = 0;
2093 READ_BUF((bmlen << 2));
2102 static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, uint32_t **savep)
2112 static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
2114 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
2115 decode_attr_bitmap(xdr, bitmask);
2116 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
2118 bitmask[0] = bitmask[1] = 0;
2119 dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]);
2123 static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
2128 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
2130 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
2133 if (*type < NF4REG || *type > NF4NAMEDATTR) {
2134 dprintk("%s: bad type %d\n", __FUNCTION__, *type);
2137 bitmap[0] &= ~FATTR4_WORD0_TYPE;
2139 dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type);
2143 static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
2148 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
2150 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
2153 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
2155 dprintk("%s: change attribute=%Lu\n", __FUNCTION__,
2156 (unsigned long long)*change);
2160 static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
2165 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
2167 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
2170 bitmap[0] &= ~FATTR4_WORD0_SIZE;
2172 dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size);
2176 static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2181 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
2183 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
2186 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
2188 dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true");
2192 static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2197 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
2199 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
2202 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
2204 dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true");
2208 static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fsid *fsid)
2214 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
2216 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
2218 READ64(fsid->major);
2219 READ64(fsid->minor);
2220 bitmap[0] &= ~FATTR4_WORD0_FSID;
2222 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__,
2223 (unsigned long long)fsid->major,
2224 (unsigned long long)fsid->minor);
2228 static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2233 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
2235 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
2238 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
2240 dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res);
2244 static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2248 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
2249 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
2251 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
2254 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
2256 dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res);
2260 static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
2265 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
2267 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
2270 bitmap[0] &= ~FATTR4_WORD0_FILEID;
2272 dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid);
2276 static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2282 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
2284 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
2287 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
2289 dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2293 static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2299 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
2301 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
2304 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
2306 dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2310 static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2316 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
2318 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
2321 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
2323 dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2327 static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2333 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
2335 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
2338 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
2340 dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2344 static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
2350 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
2352 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
2355 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
2357 dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink);
2361 static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
2367 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
2369 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
2372 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
2374 dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname);
2378 static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2384 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
2386 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
2390 if (maxread > 0x7FFFFFFF)
2391 maxread = 0x7FFFFFFF;
2392 *res = (uint32_t)maxread;
2393 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
2395 dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res);
2399 static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2405 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
2407 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
2411 if (maxwrite > 0x7FFFFFFF)
2412 maxwrite = 0x7FFFFFFF;
2413 *res = (uint32_t)maxwrite;
2414 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
2416 dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res);
2420 static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode)
2425 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
2427 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
2431 bitmap[1] &= ~FATTR4_WORD1_MODE;
2433 dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode);
2437 static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
2442 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
2444 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
2447 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
2449 dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink);
2453 static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *uid)
2458 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
2460 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
2464 if (len < XDR_MAX_NETOBJ) {
2465 if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0)
2466 dprintk("%s: nfs_map_name_to_uid failed!\n",
2469 printk(KERN_WARNING "%s: name too long (%u)!\n",
2471 bitmap[1] &= ~FATTR4_WORD1_OWNER;
2473 dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid);
2477 static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *gid)
2482 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
2484 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
2488 if (len < XDR_MAX_NETOBJ) {
2489 if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0)
2490 dprintk("%s: nfs_map_group_to_gid failed!\n",
2493 printk(KERN_WARNING "%s: name too long (%u)!\n",
2495 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
2497 dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid);
2501 static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
2503 uint32_t major = 0, minor = 0, *p;
2506 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
2508 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
2514 tmp = MKDEV(major, minor);
2515 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
2517 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
2519 dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor);
2523 static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2529 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
2531 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
2534 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
2536 dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2540 static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2546 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
2548 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
2551 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
2553 dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2557 static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2563 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
2565 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
2568 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
2570 dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2574 static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
2579 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
2581 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
2584 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
2586 dprintk("%s: space used=%Lu\n", __FUNCTION__,
2587 (unsigned long long)*used);
2591 static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
2600 time->tv_sec = (time_t)sec;
2601 time->tv_nsec = (long)nsec;
2605 static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2611 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
2613 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
2614 status = decode_attr_time(xdr, time);
2615 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
2617 dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2621 static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2627 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
2629 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
2630 status = decode_attr_time(xdr, time);
2631 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
2633 dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2637 static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2643 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
2645 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
2646 status = decode_attr_time(xdr, time);
2647 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
2649 dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2653 static int verify_attr_len(struct xdr_stream *xdr, uint32_t *savep, uint32_t attrlen)
2655 unsigned int attrwords = XDR_QUADLEN(attrlen);
2656 unsigned int nwords = xdr->p - savep;
2658 if (unlikely(attrwords != nwords)) {
2659 printk(KERN_WARNING "%s: server returned incorrect attribute length: %u %c %u\n",
2662 (attrwords < nwords) ? '<' : '>',
2669 static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2674 READ32(cinfo->atomic);
2675 READ64(cinfo->before);
2676 READ64(cinfo->after);
2680 static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
2686 status = decode_op_hdr(xdr, OP_ACCESS);
2692 access->supported = supp;
2693 access->access = acc;
2697 static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
2702 status = decode_op_hdr(xdr, OP_CLOSE);
2705 READ_BUF(sizeof(res->stateid.data));
2706 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
2710 static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
2715 status = decode_op_hdr(xdr, OP_COMMIT);
2719 COPYMEM(res->verf->verifier, 8);
2723 static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2729 status = decode_op_hdr(xdr, OP_CREATE);
2732 if ((status = decode_change_info(xdr, cinfo)))
2736 READ_BUF(bmlen << 2);
2740 static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
2747 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2749 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2751 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2753 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
2755 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
2757 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
2759 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
2761 status = verify_attr_len(xdr, savep, attrlen);
2763 dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
2767 static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
2774 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2776 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2778 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2781 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
2783 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
2785 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
2787 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
2789 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
2791 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
2794 status = verify_attr_len(xdr, savep, attrlen);
2796 dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
2800 static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
2807 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2809 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2811 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2814 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
2816 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
2819 status = verify_attr_len(xdr, savep, attrlen);
2821 dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
2825 static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server)
2831 int status, fmode = 0;
2833 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2835 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2838 fattr->bitmap[0] = bitmap[0];
2839 fattr->bitmap[1] = bitmap[1];
2841 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2845 if ((status = decode_attr_type(xdr, bitmap, &type)) != 0)
2847 fattr->type = nfs_type2fmt[type].nfs2type;
2848 fmode = nfs_type2fmt[type].mode;
2850 if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0)
2852 if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0)
2854 if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid_u.nfs4)) != 0)
2856 if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0)
2858 if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0)
2860 fattr->mode |= fmode;
2861 if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0)
2863 if ((status = decode_attr_owner(xdr, bitmap, server->nfs4_state, &fattr->uid)) != 0)
2865 if ((status = decode_attr_group(xdr, bitmap, server->nfs4_state, &fattr->gid)) != 0)
2867 if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0)
2869 if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0)
2871 if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0)
2873 if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0)
2875 if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0)
2877 if ((status = verify_attr_len(xdr, savep, attrlen)) == 0)
2878 fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4;
2880 dprintk("%s: xdr returned %d\n", __FUNCTION__, -status);
2885 static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
2888 uint32_t attrlen, bitmap[2];
2891 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2893 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2895 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2898 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
2900 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
2902 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
2904 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
2906 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
2907 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
2909 fsinfo->wtpref = fsinfo->wtmax;
2911 status = verify_attr_len(xdr, savep, attrlen);
2913 dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
2917 static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
2923 status = decode_op_hdr(xdr, OP_GETFH);
2926 /* Zero handle first to allow comparisons */
2927 memset(fh, 0, sizeof(*fh));
2931 if (len > NFS4_FHSIZE)
2935 COPYMEM(fh->data, len);
2939 static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2943 status = decode_op_hdr(xdr, OP_LINK);
2946 return decode_change_info(xdr, cinfo);
2950 * We create the owner, so we know a proper owner.id length is 4.
2952 static int decode_lock_denied (struct xdr_stream *xdr, struct nfs_lock_denied *denied)
2958 READ64(denied->offset);
2959 READ64(denied->length);
2960 READ32(denied->type);
2961 READ64(denied->owner.clientid);
2965 READ32(denied->owner.id);
2966 return -NFS4ERR_DENIED;
2969 static int decode_lock(struct xdr_stream *xdr, struct nfs_lockres *res)
2974 status = decode_op_hdr(xdr, OP_LOCK);
2976 READ_BUF(sizeof(res->u.stateid.data));
2977 COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data));
2978 } else if (status == -NFS4ERR_DENIED)
2979 return decode_lock_denied(xdr, &res->u.denied);
2983 static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockres *res)
2986 status = decode_op_hdr(xdr, OP_LOCKT);
2987 if (status == -NFS4ERR_DENIED)
2988 return decode_lock_denied(xdr, &res->u.denied);
2992 static int decode_locku(struct xdr_stream *xdr, struct nfs_lockres *res)
2997 status = decode_op_hdr(xdr, OP_LOCKU);
2999 READ_BUF(sizeof(res->u.stateid.data));
3000 COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data));
3005 static int decode_lookup(struct xdr_stream *xdr)
3007 return decode_op_hdr(xdr, OP_LOOKUP);
3010 /* This is too sick! */
3011 static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
3014 uint32_t limit_type, nblocks, blocksize;
3018 switch (limit_type) {
3025 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
3030 static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
3033 uint32_t delegation_type;
3036 READ32(delegation_type);
3037 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
3038 res->delegation_type = 0;
3042 COPYMEM(res->delegation.data, sizeof(res->delegation.data));
3043 READ32(res->do_recall);
3044 switch (delegation_type) {
3045 case NFS4_OPEN_DELEGATE_READ:
3046 res->delegation_type = FMODE_READ;
3048 case NFS4_OPEN_DELEGATE_WRITE:
3049 res->delegation_type = FMODE_WRITE|FMODE_READ;
3050 if (decode_space_limit(xdr, &res->maxsize) < 0)
3053 return decode_ace(xdr, NULL, res->server->nfs4_state);
3056 static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
3062 status = decode_op_hdr(xdr, OP_OPEN);
3065 READ_BUF(sizeof(res->stateid.data));
3066 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3068 decode_change_info(xdr, &res->cinfo);
3071 READ32(res->rflags);
3076 READ_BUF(bmlen << 2);
3078 return decode_delegation(xdr, res);
3080 dprintk("%s: Bitmap too large! Length = %u\n", __FUNCTION__, bmlen);
3084 static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
3089 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
3092 READ_BUF(sizeof(res->stateid.data));
3093 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3097 static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
3102 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
3105 READ_BUF(sizeof(res->stateid.data));
3106 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3110 static int decode_putfh(struct xdr_stream *xdr)
3112 return decode_op_hdr(xdr, OP_PUTFH);
3115 static int decode_putrootfh(struct xdr_stream *xdr)
3117 return decode_op_hdr(xdr, OP_PUTROOTFH);
3120 static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res)
3122 struct kvec *iov = req->rq_rcv_buf.head;
3124 uint32_t count, eof, recvd, hdrlen;
3127 status = decode_op_hdr(xdr, OP_READ);
3133 hdrlen = (u8 *) p - (u8 *) iov->iov_base;
3134 recvd = req->rq_rcv_buf.len - hdrlen;
3135 if (count > recvd) {
3136 printk(KERN_WARNING "NFS: server cheating in read reply: "
3137 "count %u > recvd %u\n", count, recvd);
3141 xdr_read_pages(xdr, count);
3147 static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
3149 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
3150 struct page *page = *rcvbuf->pages;
3151 struct kvec *iov = rcvbuf->head;
3152 unsigned int nr, pglen = rcvbuf->page_len;
3153 uint32_t *end, *entry, *p, *kaddr;
3154 uint32_t len, attrlen;
3155 int hdrlen, recvd, status;
3157 status = decode_op_hdr(xdr, OP_READDIR);
3161 COPYMEM(readdir->verifier.data, 8);
3162 dprintk("%s: verifier = 0x%x%x\n",
3164 ((u32 *)readdir->verifier.data)[0],
3165 ((u32 *)readdir->verifier.data)[1]);
3168 hdrlen = (char *) p - (char *) iov->iov_base;
3169 recvd = rcvbuf->len - hdrlen;
3172 xdr_read_pages(xdr, pglen);
3174 BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE);
3175 kaddr = p = (uint32_t *) kmap_atomic(page, KM_USER0);
3176 end = (uint32_t *) ((char *)p + pglen + readdir->pgbase);
3178 for (nr = 0; *p++; nr++) {
3181 dprintk("cookie = %Lu, ", *((unsigned long long *)p));
3182 p += 2; /* cookie */
3183 len = ntohl(*p++); /* filename length */
3184 if (len > NFS4_MAXNAMLEN) {
3185 printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len);
3188 dprintk("filename = %*s\n", len, (char *)p);
3189 p += XDR_QUADLEN(len);
3192 len = ntohl(*p++); /* bitmap length */
3196 attrlen = XDR_QUADLEN(ntohl(*p++));
3197 p += attrlen; /* attributes */
3202 if (!nr && (entry[0] != 0 || entry[1] == 0))
3205 kunmap_atomic(kaddr, KM_USER0);
3208 dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr);
3209 entry[0] = entry[1] = 0;
3210 /* truncate listing ? */
3212 printk(KERN_NOTICE "NFS: readdir reply truncated!\n");
3217 kunmap_atomic(kaddr, KM_USER0);
3218 return -errno_NFSERR_IO;
3221 static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
3223 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
3224 struct kvec *iov = rcvbuf->head;
3225 int hdrlen, len, recvd;
3230 status = decode_op_hdr(xdr, OP_READLINK);
3234 /* Convert length of symlink */
3237 if (len >= rcvbuf->page_len || len <= 0) {
3238 dprintk(KERN_WARNING "nfs: server returned giant symlink!\n");
3239 return -ENAMETOOLONG;
3241 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
3242 recvd = req->rq_rcv_buf.len - hdrlen;
3244 printk(KERN_WARNING "NFS: server cheating in readlink reply: "
3245 "count %u > recvd %u\n", len, recvd);
3248 xdr_read_pages(xdr, len);
3250 * The XDR encode routine has set things up so that
3251 * the link text will be copied directly into the
3252 * buffer. We just have to do overflow-checking,
3253 * and and null-terminate the text (the VFS expects
3254 * null-termination).
3256 kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0);
3257 kaddr[len+rcvbuf->page_base] = '\0';
3258 kunmap_atomic(kaddr, KM_USER0);
3262 static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3266 status = decode_op_hdr(xdr, OP_REMOVE);
3269 status = decode_change_info(xdr, cinfo);
3274 static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
3275 struct nfs4_change_info *new_cinfo)
3279 status = decode_op_hdr(xdr, OP_RENAME);
3282 if ((status = decode_change_info(xdr, old_cinfo)))
3284 status = decode_change_info(xdr, new_cinfo);
3289 static int decode_renew(struct xdr_stream *xdr)
3291 return decode_op_hdr(xdr, OP_RENEW);
3295 decode_restorefh(struct xdr_stream *xdr)
3297 return decode_op_hdr(xdr, OP_RESTOREFH);
3300 static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
3306 struct kvec *iov = req->rq_rcv_buf.head;
3310 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3312 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3314 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3317 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
3319 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
3322 /* We ignore &savep and don't do consistency checks on
3323 * the attr length. Let userspace figure it out.... */
3324 hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base;
3325 recvd = req->rq_rcv_buf.len - hdrlen;
3326 if (attrlen > recvd) {
3327 printk(KERN_WARNING "NFS: server cheating in getattr"
3328 " acl reply: attrlen %u > recvd %u\n",
3332 if (attrlen <= *acl_len)
3333 xdr_read_pages(xdr, attrlen);
3336 status = -EOPNOTSUPP;
3343 decode_savefh(struct xdr_stream *xdr)
3345 return decode_op_hdr(xdr, OP_SAVEFH);
3348 static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res)
3355 status = decode_op_hdr(xdr, OP_SETATTR);
3360 READ_BUF(bmlen << 2);
3364 static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_client *clp)
3372 if (opnum != OP_SETCLIENTID) {
3374 "nfs4_decode_setclientid: Server returned operation"
3379 if (nfserr == NFS_OK) {
3380 READ_BUF(8 + sizeof(clp->cl_confirm.data));
3381 READ64(clp->cl_clientid);
3382 COPYMEM(clp->cl_confirm.data, sizeof(clp->cl_confirm.data));
3383 } else if (nfserr == NFSERR_CLID_INUSE) {
3386 /* skip netid string */
3391 /* skip uaddr string */
3395 return -NFSERR_CLID_INUSE;
3397 return -nfs_stat_to_errno(nfserr);
3402 static int decode_setclientid_confirm(struct xdr_stream *xdr)
3404 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
3407 static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
3412 status = decode_op_hdr(xdr, OP_WRITE);
3418 READ32(res->verf->committed);
3419 COPYMEM(res->verf->verifier, 8);
3423 static int decode_delegreturn(struct xdr_stream *xdr)
3425 return decode_op_hdr(xdr, OP_DELEGRETURN);
3429 * Decode OPEN_DOWNGRADE response
3431 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res)
3433 struct xdr_stream xdr;
3434 struct compound_hdr hdr;
3437 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3438 status = decode_compound_hdr(&xdr, &hdr);
3441 status = decode_putfh(&xdr);
3444 status = decode_open_downgrade(&xdr, res);
3447 decode_getfattr(&xdr, res->fattr, res->server);
3453 * END OF "GENERIC" DECODE ROUTINES.
3457 * Decode ACCESS response
3459 static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_accessres *res)
3461 struct xdr_stream xdr;
3462 struct compound_hdr hdr;
3465 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3466 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3468 if ((status = decode_putfh(&xdr)) == 0)
3469 status = decode_access(&xdr, res);
3475 * Decode LOOKUP response
3477 static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res)
3479 struct xdr_stream xdr;
3480 struct compound_hdr hdr;
3483 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3484 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3486 if ((status = decode_putfh(&xdr)) != 0)
3488 if ((status = decode_lookup(&xdr)) != 0)
3490 if ((status = decode_getfh(&xdr, res->fh)) != 0)
3492 status = decode_getfattr(&xdr, res->fattr, res->server);
3498 * Decode LOOKUP_ROOT response
3500 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res)
3502 struct xdr_stream xdr;
3503 struct compound_hdr hdr;
3506 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3507 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3509 if ((status = decode_putrootfh(&xdr)) != 0)
3511 if ((status = decode_getfh(&xdr, res->fh)) == 0)
3512 status = decode_getfattr(&xdr, res->fattr, res->server);
3518 * Decode REMOVE response
3520 static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_remove_res *res)
3522 struct xdr_stream xdr;
3523 struct compound_hdr hdr;
3526 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3527 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3529 if ((status = decode_putfh(&xdr)) != 0)
3531 if ((status = decode_remove(&xdr, &res->cinfo)) != 0)
3533 decode_getfattr(&xdr, res->dir_attr, res->server);
3539 * Decode RENAME response
3541 static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_rename_res *res)
3543 struct xdr_stream xdr;
3544 struct compound_hdr hdr;
3547 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3548 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3550 if ((status = decode_putfh(&xdr)) != 0)
3552 if ((status = decode_savefh(&xdr)) != 0)
3554 if ((status = decode_putfh(&xdr)) != 0)
3556 if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0)
3558 /* Current FH is target directory */
3559 if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0)
3561 if ((status = decode_restorefh(&xdr)) != 0)
3563 decode_getfattr(&xdr, res->old_fattr, res->server);
3569 * Decode LINK response
3571 static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_link_res *res)
3573 struct xdr_stream xdr;
3574 struct compound_hdr hdr;
3577 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3578 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3580 if ((status = decode_putfh(&xdr)) != 0)
3582 if ((status = decode_savefh(&xdr)) != 0)
3584 if ((status = decode_putfh(&xdr)) != 0)
3586 if ((status = decode_link(&xdr, &res->cinfo)) != 0)
3589 * Note order: OP_LINK leaves the directory as the current
3592 if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0)
3594 if ((status = decode_restorefh(&xdr)) != 0)
3596 decode_getfattr(&xdr, res->fattr, res->server);
3602 * Decode CREATE response
3604 static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res)
3606 struct xdr_stream xdr;
3607 struct compound_hdr hdr;
3610 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3611 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3613 if ((status = decode_putfh(&xdr)) != 0)
3615 if ((status = decode_savefh(&xdr)) != 0)
3617 if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0)
3619 if ((status = decode_getfh(&xdr, res->fh)) != 0)
3621 if (decode_getfattr(&xdr, res->fattr, res->server) != 0)
3623 if ((status = decode_restorefh(&xdr)) != 0)
3625 decode_getfattr(&xdr, res->dir_fattr, res->server);
3631 * Decode SYMLINK response
3633 static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res)
3635 return nfs4_xdr_dec_create(rqstp, p, res);
3639 * Decode GETATTR response
3641 static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_getattr_res *res)
3643 struct xdr_stream xdr;
3644 struct compound_hdr hdr;
3647 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3648 status = decode_compound_hdr(&xdr, &hdr);
3651 status = decode_putfh(&xdr);
3654 status = decode_getfattr(&xdr, res->fattr, res->server);
3661 * Encode an SETACL request
3664 nfs4_xdr_enc_setacl(struct rpc_rqst *req, uint32_t *p, struct nfs_setaclargs *args)
3666 struct xdr_stream xdr;
3667 struct compound_hdr hdr = {
3672 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
3673 encode_compound_hdr(&xdr, &hdr);
3674 status = encode_putfh(&xdr, args->fh);
3677 status = encode_setacl(&xdr, args);
3682 * Decode SETACL response
3685 nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, uint32_t *p, void *res)
3687 struct xdr_stream xdr;
3688 struct compound_hdr hdr;
3691 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3692 status = decode_compound_hdr(&xdr, &hdr);
3695 status = decode_putfh(&xdr);
3698 status = decode_setattr(&xdr, res);
3704 * Decode GETACL response
3707 nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, uint32_t *p, size_t *acl_len)
3709 struct xdr_stream xdr;
3710 struct compound_hdr hdr;
3713 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3714 status = decode_compound_hdr(&xdr, &hdr);
3717 status = decode_putfh(&xdr);
3720 status = decode_getacl(&xdr, rqstp, acl_len);
3727 * Decode CLOSE response
3729 static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res)
3731 struct xdr_stream xdr;
3732 struct compound_hdr hdr;
3735 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3736 status = decode_compound_hdr(&xdr, &hdr);
3739 status = decode_putfh(&xdr);
3742 status = decode_close(&xdr, res);
3746 * Note: Server may do delete on close for this file
3747 * in which case the getattr call will fail with
3748 * an ESTALE error. Shouldn't be a problem,
3749 * though, since fattr->valid will remain unset.
3751 decode_getfattr(&xdr, res->fattr, res->server);
3757 * Decode OPEN response
3759 static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res)
3761 struct xdr_stream xdr;
3762 struct compound_hdr hdr;
3765 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3766 status = decode_compound_hdr(&xdr, &hdr);
3769 status = decode_putfh(&xdr);
3772 status = decode_savefh(&xdr);
3775 status = decode_open(&xdr, res);
3778 status = decode_getfh(&xdr, &res->fh);
3781 if (decode_getfattr(&xdr, res->f_attr, res->server) != 0)
3783 if ((status = decode_restorefh(&xdr)) != 0)
3785 decode_getfattr(&xdr, res->dir_attr, res->server);
3791 * Decode OPEN_CONFIRM response
3793 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_open_confirmres *res)
3795 struct xdr_stream xdr;
3796 struct compound_hdr hdr;
3799 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3800 status = decode_compound_hdr(&xdr, &hdr);
3803 status = decode_putfh(&xdr);
3806 status = decode_open_confirm(&xdr, res);
3812 * Decode OPEN response
3814 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res)
3816 struct xdr_stream xdr;
3817 struct compound_hdr hdr;
3820 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3821 status = decode_compound_hdr(&xdr, &hdr);
3824 status = decode_putfh(&xdr);
3827 status = decode_open(&xdr, res);
3833 * Decode SETATTR response
3835 static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_setattrres *res)
3837 struct xdr_stream xdr;
3838 struct compound_hdr hdr;
3841 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3842 status = decode_compound_hdr(&xdr, &hdr);
3845 status = decode_putfh(&xdr);
3848 status = decode_setattr(&xdr, res);
3851 status = decode_getfattr(&xdr, res->fattr, res->server);
3852 if (status == NFS4ERR_DELAY)
3859 * Decode LOCK response
3861 static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res)
3863 struct xdr_stream xdr;
3864 struct compound_hdr hdr;
3867 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3868 status = decode_compound_hdr(&xdr, &hdr);
3871 status = decode_putfh(&xdr);
3874 status = decode_lock(&xdr, res);
3880 * Decode LOCKT response
3882 static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res)
3884 struct xdr_stream xdr;
3885 struct compound_hdr hdr;
3888 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3889 status = decode_compound_hdr(&xdr, &hdr);
3892 status = decode_putfh(&xdr);
3895 status = decode_lockt(&xdr, res);
3901 * Decode LOCKU response
3903 static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res)
3905 struct xdr_stream xdr;
3906 struct compound_hdr hdr;
3909 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3910 status = decode_compound_hdr(&xdr, &hdr);
3913 status = decode_putfh(&xdr);
3916 status = decode_locku(&xdr, res);
3922 * Decode READLINK response
3924 static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, uint32_t *p, void *res)
3926 struct xdr_stream xdr;
3927 struct compound_hdr hdr;
3930 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3931 status = decode_compound_hdr(&xdr, &hdr);
3934 status = decode_putfh(&xdr);
3937 status = decode_readlink(&xdr, rqstp);
3943 * Decode READDIR response
3945 static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_readdir_res *res)
3947 struct xdr_stream xdr;
3948 struct compound_hdr hdr;
3951 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3952 status = decode_compound_hdr(&xdr, &hdr);
3955 status = decode_putfh(&xdr);
3958 status = decode_readdir(&xdr, rqstp, res);
3964 * Decode Read response
3966 static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_readres *res)
3968 struct xdr_stream xdr;
3969 struct compound_hdr hdr;
3972 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3973 status = decode_compound_hdr(&xdr, &hdr);
3976 status = decode_putfh(&xdr);
3979 status = decode_read(&xdr, rqstp, res);
3981 status = res->count;
3987 * Decode WRITE response
3989 static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res)
3991 struct xdr_stream xdr;
3992 struct compound_hdr hdr;
3995 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3996 status = decode_compound_hdr(&xdr, &hdr);
3999 status = decode_putfh(&xdr);
4002 status = decode_write(&xdr, res);
4005 decode_getfattr(&xdr, res->fattr, res->server);
4007 status = res->count;
4013 * Decode COMMIT response
4015 static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res)
4017 struct xdr_stream xdr;
4018 struct compound_hdr hdr;
4021 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4022 status = decode_compound_hdr(&xdr, &hdr);
4025 status = decode_putfh(&xdr);
4028 status = decode_commit(&xdr, res);
4031 decode_getfattr(&xdr, res->fattr, res->server);
4039 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo)
4041 struct xdr_stream xdr;
4042 struct compound_hdr hdr;
4045 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4046 status = decode_compound_hdr(&xdr, &hdr);
4048 status = decode_putfh(&xdr);
4050 status = decode_fsinfo(&xdr, fsinfo);
4052 status = -nfs_stat_to_errno(hdr.status);
4059 static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, uint32_t *p, struct nfs_pathconf *pathconf)
4061 struct xdr_stream xdr;
4062 struct compound_hdr hdr;
4065 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4066 status = decode_compound_hdr(&xdr, &hdr);
4068 status = decode_putfh(&xdr);
4070 status = decode_pathconf(&xdr, pathconf);
4077 static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, uint32_t *p, struct nfs_fsstat *fsstat)
4079 struct xdr_stream xdr;
4080 struct compound_hdr hdr;
4083 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4084 status = decode_compound_hdr(&xdr, &hdr);
4086 status = decode_putfh(&xdr);
4088 status = decode_statfs(&xdr, fsstat);
4093 * GETATTR_BITMAP request
4095 static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, uint32_t *p, struct nfs4_server_caps_res *res)
4097 struct xdr_stream xdr;
4098 struct compound_hdr hdr;
4101 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4102 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
4104 if ((status = decode_putfh(&xdr)) != 0)
4106 status = decode_server_caps(&xdr, res);
4112 * Decode RENEW response
4114 static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, uint32_t *p, void *dummy)
4116 struct xdr_stream xdr;
4117 struct compound_hdr hdr;
4120 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4121 status = decode_compound_hdr(&xdr, &hdr);
4123 status = decode_renew(&xdr);
4128 * a SETCLIENTID request
4130 static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, uint32_t *p,
4131 struct nfs4_client *clp)
4133 struct xdr_stream xdr;
4134 struct compound_hdr hdr;
4137 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4138 status = decode_compound_hdr(&xdr, &hdr);
4140 status = decode_setclientid(&xdr, clp);
4142 status = -nfs_stat_to_errno(hdr.status);
4147 * a SETCLIENTID_CONFIRM request
4149 static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo)
4151 struct xdr_stream xdr;
4152 struct compound_hdr hdr;
4155 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4156 status = decode_compound_hdr(&xdr, &hdr);
4158 status = decode_setclientid_confirm(&xdr);
4160 status = decode_putrootfh(&xdr);
4162 status = decode_fsinfo(&xdr, fsinfo);
4164 status = -nfs_stat_to_errno(hdr.status);
4169 * DELEGRETURN request
4171 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, void *dummy)
4173 struct xdr_stream xdr;
4174 struct compound_hdr hdr;
4177 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4178 status = decode_compound_hdr(&xdr, &hdr);
4180 status = decode_putfh(&xdr);
4182 status = decode_delegreturn(&xdr);
4187 uint32_t *nfs4_decode_dirent(uint32_t *p, struct nfs_entry *entry, int plus)
4189 uint32_t bitmap[2] = {0};
4194 return ERR_PTR(-EAGAIN);
4196 return ERR_PTR(-EBADCOOKIE);
4199 entry->prev_cookie = entry->cookie;
4200 p = xdr_decode_hyper(p, &entry->cookie);
4201 entry->len = ntohl(*p++);
4202 entry->name = (const char *) p;
4203 p += XDR_QUADLEN(entry->len);
4206 * In case the server doesn't return an inode number,
4207 * we fake one here. (We don't use inode number 0,
4208 * since glibc seems to choke on it...)
4212 len = ntohl(*p++); /* bitmap length */
4214 bitmap[0] = ntohl(*p++);
4216 bitmap[1] = ntohl(*p++);
4220 len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */
4222 if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) {
4223 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
4224 /* Ignore the return value of rdattr_error for now */
4228 if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID)
4229 xdr_decode_hyper(p, &entry->ino);
4230 else if (bitmap[0] == FATTR4_WORD0_FILEID)
4231 xdr_decode_hyper(p, &entry->ino);
4235 entry->eof = !p[0] && p[1];
4240 * We need to translate between nfs status return values and
4241 * the local errno values which may not be the same.
4248 { NFS4ERR_PERM, EPERM },
4249 { NFS4ERR_NOENT, ENOENT },
4250 { NFS4ERR_IO, errno_NFSERR_IO },
4251 { NFS4ERR_NXIO, ENXIO },
4252 { NFS4ERR_ACCESS, EACCES },
4253 { NFS4ERR_EXIST, EEXIST },
4254 { NFS4ERR_XDEV, EXDEV },
4255 { NFS4ERR_NOTDIR, ENOTDIR },
4256 { NFS4ERR_ISDIR, EISDIR },
4257 { NFS4ERR_INVAL, EINVAL },
4258 { NFS4ERR_FBIG, EFBIG },
4259 { NFS4ERR_NOSPC, ENOSPC },
4260 { NFS4ERR_ROFS, EROFS },
4261 { NFS4ERR_MLINK, EMLINK },
4262 { NFS4ERR_NAMETOOLONG, ENAMETOOLONG },
4263 { NFS4ERR_NOTEMPTY, ENOTEMPTY },
4264 { NFS4ERR_DQUOT, EDQUOT },
4265 { NFS4ERR_STALE, ESTALE },
4266 { NFS4ERR_BADHANDLE, EBADHANDLE },
4267 { NFS4ERR_BADOWNER, EINVAL },
4268 { NFS4ERR_BADNAME, EINVAL },
4269 { NFS4ERR_BAD_COOKIE, EBADCOOKIE },
4270 { NFS4ERR_NOTSUPP, ENOTSUPP },
4271 { NFS4ERR_TOOSMALL, ETOOSMALL },
4272 { NFS4ERR_SERVERFAULT, ESERVERFAULT },
4273 { NFS4ERR_BADTYPE, EBADTYPE },
4274 { NFS4ERR_LOCKED, EAGAIN },
4275 { NFS4ERR_RESOURCE, EREMOTEIO },
4276 { NFS4ERR_SYMLINK, ELOOP },
4277 { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP },
4278 { NFS4ERR_DEADLOCK, EDEADLK },
4279 { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs
4280 * to be handled by a
4287 * Convert an NFS error code to a local one.
4288 * This one is used jointly by NFSv2 and NFSv3.
4291 nfs_stat_to_errno(int stat)
4294 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
4295 if (nfs_errtbl[i].stat == stat)
4296 return nfs_errtbl[i].errno;
4298 if (stat <= 10000 || stat > 10100) {
4299 /* The server is looney tunes. */
4300 return ESERVERFAULT;
4302 /* If we cannot translate the error, the recovery routines should
4304 * Note: remaining NFSv4 error codes have values > 10000, so should
4305 * not conflict with native Linux error codes.
4311 # define MAX(a, b) (((a) > (b))? (a) : (b))
4314 #define PROC(proc, argtype, restype) \
4315 [NFSPROC4_CLNT_##proc] = { \
4316 .p_proc = NFSPROC4_COMPOUND, \
4317 .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \
4318 .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \
4319 .p_bufsiz = MAX(NFS4_##argtype##_sz,NFS4_##restype##_sz) << 2, \
4322 struct rpc_procinfo nfs4_procedures[] = {
4323 PROC(READ, enc_read, dec_read),
4324 PROC(WRITE, enc_write, dec_write),
4325 PROC(COMMIT, enc_commit, dec_commit),
4326 PROC(OPEN, enc_open, dec_open),
4327 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
4328 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
4329 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
4330 PROC(CLOSE, enc_close, dec_close),
4331 PROC(SETATTR, enc_setattr, dec_setattr),
4332 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
4333 PROC(RENEW, enc_renew, dec_renew),
4334 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
4335 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
4336 PROC(LOCK, enc_lock, dec_lock),
4337 PROC(LOCKT, enc_lockt, dec_lockt),
4338 PROC(LOCKU, enc_locku, dec_locku),
4339 PROC(ACCESS, enc_access, dec_access),
4340 PROC(GETATTR, enc_getattr, dec_getattr),
4341 PROC(LOOKUP, enc_lookup, dec_lookup),
4342 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
4343 PROC(REMOVE, enc_remove, dec_remove),
4344 PROC(RENAME, enc_rename, dec_rename),
4345 PROC(LINK, enc_link, dec_link),
4346 PROC(SYMLINK, enc_symlink, dec_symlink),
4347 PROC(CREATE, enc_create, dec_create),
4348 PROC(PATHCONF, enc_pathconf, dec_pathconf),
4349 PROC(STATFS, enc_statfs, dec_statfs),
4350 PROC(READLINK, enc_readlink, dec_readlink),
4351 PROC(READDIR, enc_readdir, dec_readdir),
4352 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
4353 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
4354 PROC(GETACL, enc_getacl, dec_getacl),
4355 PROC(SETACL, enc_setacl, dec_setacl),
4358 struct rpc_version nfs_version4 = {
4360 .nrprocs = sizeof(nfs4_procedures)/sizeof(nfs4_procedures[0]),
4361 .procs = nfs4_procedures