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 #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
164 decode_putfh_maxsz + \
165 op_decode_hdr_maxsz + 4)
166 #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
167 encode_putfh_maxsz + \
168 op_encode_hdr_maxsz + 3)
169 #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
170 decode_putfh_maxsz + \
171 op_decode_hdr_maxsz + 2)
172 #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
173 encode_putfh_maxsz + \
174 op_encode_hdr_maxsz + \
176 encode_getattr_maxsz + \
178 #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
179 decode_putfh_maxsz + \
180 op_decode_hdr_maxsz + 4 + 5 + 2 + 3 + \
181 decode_getattr_maxsz + \
183 #define NFS4_enc_open_confirm_sz \
184 (compound_encode_hdr_maxsz + \
185 encode_putfh_maxsz + \
186 op_encode_hdr_maxsz + 5)
187 #define NFS4_dec_open_confirm_sz (compound_decode_hdr_maxsz + \
188 decode_putfh_maxsz + \
189 op_decode_hdr_maxsz + 4)
190 #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
191 encode_putfh_maxsz + \
192 op_encode_hdr_maxsz + \
194 #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
195 decode_putfh_maxsz + \
196 op_decode_hdr_maxsz + \
198 #define NFS4_enc_open_downgrade_sz \
199 (compound_encode_hdr_maxsz + \
200 encode_putfh_maxsz + \
201 op_encode_hdr_maxsz + 7 + \
202 encode_getattr_maxsz)
203 #define NFS4_dec_open_downgrade_sz \
204 (compound_decode_hdr_maxsz + \
205 decode_putfh_maxsz + \
206 op_decode_hdr_maxsz + 4 + \
207 decode_getattr_maxsz)
208 #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
209 encode_putfh_maxsz + \
210 op_encode_hdr_maxsz + 5 + \
211 encode_getattr_maxsz)
212 #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
213 decode_putfh_maxsz + \
214 op_decode_hdr_maxsz + 4 + \
215 decode_getattr_maxsz)
216 #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
217 encode_putfh_maxsz + \
218 op_encode_hdr_maxsz + 4 + \
220 encode_getattr_maxsz)
221 #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
222 decode_putfh_maxsz + \
223 op_decode_hdr_maxsz + 3)
224 #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
225 encode_putfh_maxsz + \
227 #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
228 decode_putfh_maxsz + \
230 #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
232 #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
234 #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
235 encode_setclientid_maxsz)
236 #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
237 decode_setclientid_maxsz)
238 #define NFS4_enc_setclientid_confirm_sz \
239 (compound_encode_hdr_maxsz + \
240 encode_setclientid_confirm_maxsz + \
241 encode_putrootfh_maxsz + \
243 #define NFS4_dec_setclientid_confirm_sz \
244 (compound_decode_hdr_maxsz + \
245 decode_setclientid_confirm_maxsz + \
246 decode_putrootfh_maxsz + \
248 #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
249 encode_putfh_maxsz + \
250 encode_getattr_maxsz + \
251 op_encode_hdr_maxsz + \
255 #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
256 decode_putfh_maxsz + \
257 decode_getattr_maxsz + \
258 op_decode_hdr_maxsz + \
261 #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
262 encode_putfh_maxsz + \
263 encode_getattr_maxsz + \
264 op_encode_hdr_maxsz + \
267 #define NFS4_dec_lockt_sz (NFS4_dec_lock_sz)
268 #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
269 encode_putfh_maxsz + \
270 encode_getattr_maxsz + \
271 op_encode_hdr_maxsz + \
273 #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
274 decode_putfh_maxsz + \
275 decode_getattr_maxsz + \
276 op_decode_hdr_maxsz + 4)
277 #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
278 encode_putfh_maxsz + \
279 op_encode_hdr_maxsz + 1)
280 #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
281 decode_putfh_maxsz + \
282 op_decode_hdr_maxsz + 2)
283 #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
284 encode_putfh_maxsz + \
285 encode_getattr_maxsz)
286 #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
287 decode_putfh_maxsz + \
288 decode_getattr_maxsz)
289 #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
290 encode_putfh_maxsz + \
291 encode_lookup_maxsz + \
292 encode_getattr_maxsz + \
294 #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
295 decode_putfh_maxsz + \
296 op_decode_hdr_maxsz + \
297 decode_getattr_maxsz + \
299 #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
300 encode_putrootfh_maxsz + \
301 encode_getattr_maxsz + \
303 #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
304 decode_putrootfh_maxsz + \
305 decode_getattr_maxsz + \
307 #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
308 encode_putfh_maxsz + \
310 #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
311 decode_putfh_maxsz + \
312 op_decode_hdr_maxsz + 5)
313 #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
314 encode_putfh_maxsz + \
315 encode_savefh_maxsz + \
316 encode_putfh_maxsz + \
318 #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
319 decode_putfh_maxsz + \
320 decode_savefh_maxsz + \
321 decode_putfh_maxsz + \
323 #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
324 encode_putfh_maxsz + \
325 encode_savefh_maxsz + \
326 encode_putfh_maxsz + \
327 encode_link_maxsz + \
328 decode_getattr_maxsz + \
329 encode_restorefh_maxsz + \
330 decode_getattr_maxsz)
331 #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
332 decode_putfh_maxsz + \
333 decode_savefh_maxsz + \
334 decode_putfh_maxsz + \
335 decode_link_maxsz + \
336 decode_getattr_maxsz + \
337 decode_restorefh_maxsz + \
338 decode_getattr_maxsz)
339 #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
340 encode_putfh_maxsz + \
341 encode_symlink_maxsz + \
342 encode_getattr_maxsz + \
344 #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
345 decode_putfh_maxsz + \
346 decode_symlink_maxsz + \
347 decode_getattr_maxsz + \
349 #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
350 encode_putfh_maxsz + \
351 encode_savefh_maxsz + \
352 encode_create_maxsz + \
353 encode_getfh_maxsz + \
354 encode_getattr_maxsz + \
355 encode_restorefh_maxsz + \
356 encode_getattr_maxsz)
357 #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
358 decode_putfh_maxsz + \
359 decode_savefh_maxsz + \
360 decode_create_maxsz + \
361 decode_getfh_maxsz + \
362 decode_getattr_maxsz + \
363 decode_restorefh_maxsz + \
364 decode_getattr_maxsz)
365 #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
366 encode_putfh_maxsz + \
367 encode_getattr_maxsz)
368 #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
369 decode_putfh_maxsz + \
370 decode_getattr_maxsz)
371 #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
372 encode_putfh_maxsz + \
373 encode_getattr_maxsz)
374 #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
375 decode_putfh_maxsz + \
376 op_decode_hdr_maxsz + 12)
377 #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
378 encode_getattr_maxsz)
379 #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
380 decode_getattr_maxsz)
381 #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
382 encode_putfh_maxsz + \
383 encode_delegreturn_maxsz)
384 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
385 decode_delegreturn_maxsz)
386 #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
387 encode_putfh_maxsz + \
388 encode_getattr_maxsz)
389 #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
390 decode_putfh_maxsz + \
391 op_decode_hdr_maxsz + \
392 nfs4_fattr_bitmap_maxsz + 1)
393 #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
394 encode_putfh_maxsz + \
395 op_encode_hdr_maxsz + 4 + \
396 nfs4_fattr_bitmap_maxsz + 1)
397 #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
398 decode_putfh_maxsz + \
399 op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
403 unsigned int nfs2type;
411 { S_IFSOCK, NFSOCK },
417 struct compound_hdr {
425 * START OF "GENERIC" ENCODE ROUTINES.
426 * These may look a little ugly since they are imported from a "generic"
427 * set of XDR encode/decode routines which are intended to be shared by
428 * all of our NFSv4 implementations (OpenBSD, MacOS X...).
430 * If the pain of reading these is too great, it should be a straightforward
431 * task to translate them into Linux-specific versions which are more
432 * consistent with the style used in NFSv2/v3...
434 #define WRITE32(n) *p++ = htonl(n)
435 #define WRITE64(n) do { \
436 *p++ = htonl((uint32_t)((n) >> 32)); \
437 *p++ = htonl((uint32_t)(n)); \
439 #define WRITEMEM(ptr,nbytes) do { \
440 p = xdr_encode_opaque_fixed(p, ptr, nbytes); \
443 #define RESERVE_SPACE(nbytes) do { \
444 p = xdr_reserve_space(xdr, nbytes); \
445 if (!p) printk("RESERVE_SPACE(%d) failed in function %s\n", (int) (nbytes), __FUNCTION__); \
449 static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
453 p = xdr_reserve_space(xdr, 4 + len);
455 xdr_encode_opaque(p, str, len);
458 static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
462 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag);
463 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN);
464 RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2));
465 WRITE32(hdr->taglen);
466 WRITEMEM(hdr->tag, hdr->taglen);
467 WRITE32(NFS4_MINOR_VERSION);
472 static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
476 p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE);
478 xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE);
481 static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
483 char owner_name[IDMAP_NAMESZ];
484 char owner_group[IDMAP_NAMESZ];
485 int owner_namelen = 0;
486 int owner_grouplen = 0;
495 * We reserve enough space to write the entire attribute buffer at once.
496 * In the worst-case, this would be
497 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
498 * = 36 bytes, plus any contribution from variable-length fields
499 * such as owner/group.
504 if (iap->ia_valid & ATTR_SIZE)
506 if (iap->ia_valid & ATTR_MODE)
508 if (iap->ia_valid & ATTR_UID) {
509 owner_namelen = nfs_map_uid_to_name(server->nfs4_state, iap->ia_uid, owner_name);
510 if (owner_namelen < 0) {
511 printk(KERN_WARNING "nfs: couldn't resolve uid %d to string\n",
514 strcpy(owner_name, "nobody");
515 owner_namelen = sizeof("nobody") - 1;
518 len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
520 if (iap->ia_valid & ATTR_GID) {
521 owner_grouplen = nfs_map_gid_to_group(server->nfs4_state, iap->ia_gid, owner_group);
522 if (owner_grouplen < 0) {
523 printk(KERN_WARNING "nfs4: couldn't resolve gid %d to string\n",
525 strcpy(owner_group, "nobody");
526 owner_grouplen = sizeof("nobody") - 1;
529 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
531 if (iap->ia_valid & ATTR_ATIME_SET)
533 else if (iap->ia_valid & ATTR_ATIME)
535 if (iap->ia_valid & ATTR_MTIME_SET)
537 else if (iap->ia_valid & ATTR_MTIME)
542 * We write the bitmap length now, but leave the bitmap and the attribute
543 * buffer length to be backfilled at the end of this routine.
549 if (iap->ia_valid & ATTR_SIZE) {
550 bmval0 |= FATTR4_WORD0_SIZE;
551 WRITE64(iap->ia_size);
553 if (iap->ia_valid & ATTR_MODE) {
554 bmval1 |= FATTR4_WORD1_MODE;
555 WRITE32(iap->ia_mode);
557 if (iap->ia_valid & ATTR_UID) {
558 bmval1 |= FATTR4_WORD1_OWNER;
559 WRITE32(owner_namelen);
560 WRITEMEM(owner_name, owner_namelen);
562 if (iap->ia_valid & ATTR_GID) {
563 bmval1 |= FATTR4_WORD1_OWNER_GROUP;
564 WRITE32(owner_grouplen);
565 WRITEMEM(owner_group, owner_grouplen);
567 if (iap->ia_valid & ATTR_ATIME_SET) {
568 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
569 WRITE32(NFS4_SET_TO_CLIENT_TIME);
571 WRITE32(iap->ia_mtime.tv_sec);
572 WRITE32(iap->ia_mtime.tv_nsec);
574 else if (iap->ia_valid & ATTR_ATIME) {
575 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
576 WRITE32(NFS4_SET_TO_SERVER_TIME);
578 if (iap->ia_valid & ATTR_MTIME_SET) {
579 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
580 WRITE32(NFS4_SET_TO_CLIENT_TIME);
582 WRITE32(iap->ia_mtime.tv_sec);
583 WRITE32(iap->ia_mtime.tv_nsec);
585 else if (iap->ia_valid & ATTR_MTIME) {
586 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
587 WRITE32(NFS4_SET_TO_SERVER_TIME);
591 * Now we backfill the bitmap and the attribute buffer length.
593 if (len != ((char *)p - (char *)q) + 4) {
594 printk ("encode_attr: Attr length calculation error! %u != %Zu\n",
595 len, ((char *)p - (char *)q) + 4);
598 len = (char *)p - (char *)q - 12;
599 *q++ = htonl(bmval0);
600 *q++ = htonl(bmval1);
608 static int encode_access(struct xdr_stream *xdr, u32 access)
619 static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg)
623 RESERVE_SPACE(8+sizeof(arg->stateid->data));
625 WRITE32(arg->seqid->sequence->counter);
626 WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
631 static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args)
637 WRITE64(args->offset);
638 WRITE32(args->count);
643 static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create)
649 WRITE32(create->ftype);
651 switch (create->ftype) {
653 RESERVE_SPACE(4 + create->u.symlink->len);
654 WRITE32(create->u.symlink->len);
655 WRITEMEM(create->u.symlink->name, create->u.symlink->len);
658 case NF4BLK: case NF4CHR:
660 WRITE32(create->u.device.specdata1);
661 WRITE32(create->u.device.specdata2);
668 RESERVE_SPACE(4 + create->name->len);
669 WRITE32(create->name->len);
670 WRITEMEM(create->name->name, create->name->len);
672 return encode_attrs(xdr, create->attrs, create->server);
675 static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap)
686 static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1)
698 static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask)
700 return encode_getattr_two(xdr,
701 bitmask[0] & nfs4_fattr_bitmap[0],
702 bitmask[1] & nfs4_fattr_bitmap[1]);
705 static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask)
707 return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0],
708 bitmask[1] & nfs4_fsinfo_bitmap[1]);
711 static int encode_getfh(struct xdr_stream *xdr)
721 static int encode_link(struct xdr_stream *xdr, const struct qstr *name)
725 RESERVE_SPACE(8 + name->len);
728 WRITEMEM(name->name, name->len);
734 * opcode,type,reclaim,offset,length,new_lock_owner = 32
735 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
737 static int encode_lock(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
740 struct nfs_lock_opargs *opargs = arg->u.lock;
745 WRITE32(opargs->reclaim);
746 WRITE64(arg->offset);
747 WRITE64(arg->length);
748 WRITE32(opargs->new_lock_owner);
749 if (opargs->new_lock_owner){
751 WRITE32(opargs->open_seqid->sequence->counter);
752 WRITEMEM(opargs->open_stateid->data, sizeof(opargs->open_stateid->data));
753 WRITE32(opargs->lock_seqid->sequence->counter);
754 WRITE64(opargs->lock_owner.clientid);
756 WRITE32(opargs->lock_owner.id);
760 WRITEMEM(opargs->lock_stateid->data, sizeof(opargs->lock_stateid->data));
761 WRITE32(opargs->lock_seqid->sequence->counter);
767 static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
770 struct nfs_lowner *opargs = arg->u.lockt;
775 WRITE64(arg->offset);
776 WRITE64(arg->length);
777 WRITE64(opargs->clientid);
784 static int encode_locku(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
787 struct nfs_locku_opargs *opargs = arg->u.locku;
792 WRITE32(opargs->seqid->sequence->counter);
793 WRITEMEM(opargs->stateid->data, sizeof(opargs->stateid->data));
794 WRITE64(arg->offset);
795 WRITE64(arg->length);
800 static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name)
805 RESERVE_SPACE(8 + len);
808 WRITEMEM(name->name, len);
813 static void encode_share_access(struct xdr_stream *xdr, int open_flags)
818 switch (open_flags & (FMODE_READ|FMODE_WRITE)) {
820 WRITE32(NFS4_SHARE_ACCESS_READ);
823 WRITE32(NFS4_SHARE_ACCESS_WRITE);
825 case FMODE_READ|FMODE_WRITE:
826 WRITE32(NFS4_SHARE_ACCESS_BOTH);
831 WRITE32(0); /* for linux, share_deny = 0 always */
834 static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
838 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
843 WRITE32(arg->seqid->sequence->counter);
844 encode_share_access(xdr, arg->open_flags);
846 WRITE64(arg->clientid);
851 static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
856 switch(arg->open_flags & O_EXCL) {
858 WRITE32(NFS4_CREATE_UNCHECKED);
859 encode_attrs(xdr, arg->u.attrs, arg->server);
862 WRITE32(NFS4_CREATE_EXCLUSIVE);
863 encode_nfs4_verifier(xdr, &arg->u.verifier);
867 static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
872 switch (arg->open_flags & O_CREAT) {
874 WRITE32(NFS4_OPEN_NOCREATE);
877 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
878 WRITE32(NFS4_OPEN_CREATE);
879 encode_createmode(xdr, arg);
883 static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type)
888 switch (delegation_type) {
890 WRITE32(NFS4_OPEN_DELEGATE_NONE);
893 WRITE32(NFS4_OPEN_DELEGATE_READ);
895 case FMODE_WRITE|FMODE_READ:
896 WRITE32(NFS4_OPEN_DELEGATE_WRITE);
903 static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
908 WRITE32(NFS4_OPEN_CLAIM_NULL);
909 encode_string(xdr, name->len, name->name);
912 static inline void encode_claim_previous(struct xdr_stream *xdr, int type)
917 WRITE32(NFS4_OPEN_CLAIM_PREVIOUS);
918 encode_delegation_type(xdr, type);
921 static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
925 RESERVE_SPACE(4+sizeof(stateid->data));
926 WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
927 WRITEMEM(stateid->data, sizeof(stateid->data));
928 encode_string(xdr, name->len, name->name);
931 static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg)
933 encode_openhdr(xdr, arg);
934 encode_opentype(xdr, arg);
935 switch (arg->claim) {
936 case NFS4_OPEN_CLAIM_NULL:
937 encode_claim_null(xdr, arg->name);
939 case NFS4_OPEN_CLAIM_PREVIOUS:
940 encode_claim_previous(xdr, arg->u.delegation_type);
942 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
943 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
951 static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg)
955 RESERVE_SPACE(8+sizeof(arg->stateid.data));
956 WRITE32(OP_OPEN_CONFIRM);
957 WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
958 WRITE32(arg->seqid->sequence->counter);
963 static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg)
967 RESERVE_SPACE(8+sizeof(arg->stateid->data));
968 WRITE32(OP_OPEN_DOWNGRADE);
969 WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
970 WRITE32(arg->seqid->sequence->counter);
971 encode_share_access(xdr, arg->open_flags);
976 encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh)
981 RESERVE_SPACE(8 + len);
984 WRITEMEM(fh->data, len);
989 static int encode_putrootfh(struct xdr_stream *xdr)
994 WRITE32(OP_PUTROOTFH);
999 static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx)
1001 nfs4_stateid stateid;
1005 if (ctx->state != NULL) {
1006 nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner);
1007 WRITEMEM(stateid.data, sizeof(stateid.data));
1009 WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data));
1012 static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args)
1019 encode_stateid(xdr, args->context);
1022 WRITE64(args->offset);
1023 WRITE32(args->count);
1028 static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req)
1030 struct rpc_auth *auth = req->rq_task->tk_auth;
1031 uint32_t attrs[2] = {
1032 FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID,
1033 FATTR4_WORD1_MOUNTED_ON_FILEID,
1038 RESERVE_SPACE(32+sizeof(nfs4_verifier));
1039 WRITE32(OP_READDIR);
1040 WRITE64(readdir->cookie);
1041 WRITEMEM(readdir->verifier.data, sizeof(readdir->verifier.data));
1042 WRITE32(readdir->count >> 1); /* We're not doing readdirplus */
1043 WRITE32(readdir->count);
1045 /* Switch to mounted_on_fileid if the server supports it */
1046 if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)
1047 attrs[0] &= ~FATTR4_WORD0_FILEID;
1049 attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
1050 WRITE32(attrs[0] & readdir->bitmask[0]);
1051 WRITE32(attrs[1] & readdir->bitmask[1]);
1052 dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n",
1054 (unsigned long long)readdir->cookie,
1055 ((u32 *)readdir->verifier.data)[0],
1056 ((u32 *)readdir->verifier.data)[1],
1057 attrs[0] & readdir->bitmask[0],
1058 attrs[1] & readdir->bitmask[1]);
1060 /* set up reply kvec
1061 * toplevel_status + taglen + rescount + OP_PUTFH + status
1062 * + OP_READDIR + status + verifer(2) = 9
1064 replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2;
1065 xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages,
1066 readdir->pgbase, readdir->count);
1067 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
1068 __FUNCTION__, replen, readdir->pages,
1069 readdir->pgbase, readdir->count);
1074 static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req)
1076 struct rpc_auth *auth = req->rq_task->tk_auth;
1077 unsigned int replen;
1081 WRITE32(OP_READLINK);
1083 /* set up reply kvec
1084 * toplevel_status + taglen + rescount + OP_PUTFH + status
1085 * + OP_READLINK + status + string length = 8
1087 replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2;
1088 xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages,
1089 readlink->pgbase, readlink->pglen);
1094 static int encode_remove(struct xdr_stream *xdr, const struct qstr *name)
1098 RESERVE_SPACE(8 + name->len);
1101 WRITEMEM(name->name, name->len);
1106 static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname)
1110 RESERVE_SPACE(8 + oldname->len);
1112 WRITE32(oldname->len);
1113 WRITEMEM(oldname->name, oldname->len);
1115 RESERVE_SPACE(4 + newname->len);
1116 WRITE32(newname->len);
1117 WRITEMEM(newname->name, newname->len);
1122 static int encode_renew(struct xdr_stream *xdr, const struct nfs4_client *client_stateid)
1128 WRITE64(client_stateid->cl_clientid);
1134 encode_restorefh(struct xdr_stream *xdr)
1139 WRITE32(OP_RESTOREFH);
1145 encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg)
1149 RESERVE_SPACE(4+sizeof(zero_stateid.data));
1150 WRITE32(OP_SETATTR);
1151 WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data));
1154 WRITE32(FATTR4_WORD0_ACL);
1155 if (arg->acl_len % 4)
1158 WRITE32(arg->acl_len);
1159 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
1164 encode_savefh(struct xdr_stream *xdr)
1174 static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server)
1179 RESERVE_SPACE(4+sizeof(arg->stateid.data));
1180 WRITE32(OP_SETATTR);
1181 WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
1183 if ((status = encode_attrs(xdr, arg->iap, server)))
1189 static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid)
1193 RESERVE_SPACE(4 + sizeof(setclientid->sc_verifier->data));
1194 WRITE32(OP_SETCLIENTID);
1195 WRITEMEM(setclientid->sc_verifier->data, sizeof(setclientid->sc_verifier->data));
1197 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
1199 WRITE32(setclientid->sc_prog);
1200 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1201 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
1203 WRITE32(setclientid->sc_cb_ident);
1208 static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_client *client_state)
1212 RESERVE_SPACE(12 + sizeof(client_state->cl_confirm.data));
1213 WRITE32(OP_SETCLIENTID_CONFIRM);
1214 WRITE64(client_state->cl_clientid);
1215 WRITEMEM(client_state->cl_confirm.data, sizeof(client_state->cl_confirm.data));
1220 static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args)
1227 encode_stateid(xdr, args->context);
1230 WRITE64(args->offset);
1231 WRITE32(args->stable);
1232 WRITE32(args->count);
1234 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
1239 static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid)
1245 WRITE32(OP_DELEGRETURN);
1246 WRITEMEM(stateid->data, sizeof(stateid->data));
1251 * END OF "GENERIC" ENCODE ROUTINES.
1255 * Encode an ACCESS request
1257 static int nfs4_xdr_enc_access(struct rpc_rqst *req, uint32_t *p, const struct nfs4_accessargs *args)
1259 struct xdr_stream xdr;
1260 struct compound_hdr hdr = {
1265 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1266 encode_compound_hdr(&xdr, &hdr);
1267 if ((status = encode_putfh(&xdr, args->fh)) == 0)
1268 status = encode_access(&xdr, args->access);
1273 * Encode LOOKUP request
1275 static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_arg *args)
1277 struct xdr_stream xdr;
1278 struct compound_hdr hdr = {
1283 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1284 encode_compound_hdr(&xdr, &hdr);
1285 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1287 if ((status = encode_lookup(&xdr, args->name)) != 0)
1289 if ((status = encode_getfh(&xdr)) != 0)
1291 status = encode_getfattr(&xdr, args->bitmask);
1297 * Encode LOOKUP_ROOT request
1299 static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_root_arg *args)
1301 struct xdr_stream xdr;
1302 struct compound_hdr hdr = {
1307 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1308 encode_compound_hdr(&xdr, &hdr);
1309 if ((status = encode_putrootfh(&xdr)) != 0)
1311 if ((status = encode_getfh(&xdr)) == 0)
1312 status = encode_getfattr(&xdr, args->bitmask);
1318 * Encode REMOVE request
1320 static int nfs4_xdr_enc_remove(struct rpc_rqst *req, uint32_t *p, const struct nfs4_remove_arg *args)
1322 struct xdr_stream xdr;
1323 struct compound_hdr hdr = {
1328 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1329 encode_compound_hdr(&xdr, &hdr);
1330 if ((status = encode_putfh(&xdr, args->fh)) == 0)
1331 status = encode_remove(&xdr, args->name);
1336 * Encode RENAME request
1338 static int nfs4_xdr_enc_rename(struct rpc_rqst *req, uint32_t *p, const struct nfs4_rename_arg *args)
1340 struct xdr_stream xdr;
1341 struct compound_hdr hdr = {
1346 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1347 encode_compound_hdr(&xdr, &hdr);
1348 if ((status = encode_putfh(&xdr, args->old_dir)) != 0)
1350 if ((status = encode_savefh(&xdr)) != 0)
1352 if ((status = encode_putfh(&xdr, args->new_dir)) != 0)
1354 status = encode_rename(&xdr, args->old_name, args->new_name);
1360 * Encode LINK request
1362 static int nfs4_xdr_enc_link(struct rpc_rqst *req, uint32_t *p, const struct nfs4_link_arg *args)
1364 struct xdr_stream xdr;
1365 struct compound_hdr hdr = {
1370 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1371 encode_compound_hdr(&xdr, &hdr);
1372 if ((status = encode_putfh(&xdr, args->fh)) != 0)
1374 if ((status = encode_savefh(&xdr)) != 0)
1376 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1378 if ((status = encode_link(&xdr, args->name)) != 0)
1380 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
1382 if ((status = encode_restorefh(&xdr)) != 0)
1384 status = encode_getfattr(&xdr, args->bitmask);
1390 * Encode CREATE request
1392 static int nfs4_xdr_enc_create(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args)
1394 struct xdr_stream xdr;
1395 struct compound_hdr hdr = {
1400 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1401 encode_compound_hdr(&xdr, &hdr);
1402 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1404 if ((status = encode_savefh(&xdr)) != 0)
1406 if ((status = encode_create(&xdr, args)) != 0)
1408 if ((status = encode_getfh(&xdr)) != 0)
1410 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
1412 if ((status = encode_restorefh(&xdr)) != 0)
1414 status = encode_getfattr(&xdr, args->bitmask);
1420 * Encode SYMLINK request
1422 static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args)
1424 return nfs4_xdr_enc_create(req, p, args);
1428 * Encode GETATTR request
1430 static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, uint32_t *p, const struct nfs4_getattr_arg *args)
1432 struct xdr_stream xdr;
1433 struct compound_hdr hdr = {
1438 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1439 encode_compound_hdr(&xdr, &hdr);
1440 if ((status = encode_putfh(&xdr, args->fh)) == 0)
1441 status = encode_getfattr(&xdr, args->bitmask);
1446 * Encode a CLOSE request
1448 static int nfs4_xdr_enc_close(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args)
1450 struct xdr_stream xdr;
1451 struct compound_hdr hdr = {
1456 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1457 encode_compound_hdr(&xdr, &hdr);
1458 status = encode_putfh(&xdr, args->fh);
1461 status = encode_close(&xdr, args);
1464 status = encode_getfattr(&xdr, args->bitmask);
1470 * Encode an OPEN request
1472 static int nfs4_xdr_enc_open(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args)
1474 struct xdr_stream xdr;
1475 struct compound_hdr hdr = {
1480 status = nfs_wait_on_sequence(args->seqid, req->rq_task);
1483 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1484 encode_compound_hdr(&xdr, &hdr);
1485 status = encode_putfh(&xdr, args->fh);
1488 status = encode_savefh(&xdr);
1491 status = encode_open(&xdr, args);
1494 status = encode_getfh(&xdr);
1497 status = encode_getfattr(&xdr, args->bitmask);
1500 status = encode_restorefh(&xdr);
1503 status = encode_getfattr(&xdr, args->bitmask);
1509 * Encode an OPEN_CONFIRM request
1511 static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_open_confirmargs *args)
1513 struct xdr_stream xdr;
1514 struct compound_hdr hdr = {
1519 status = nfs_wait_on_sequence(args->seqid, req->rq_task);
1522 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1523 encode_compound_hdr(&xdr, &hdr);
1524 status = encode_putfh(&xdr, args->fh);
1527 status = encode_open_confirm(&xdr, args);
1533 * Encode an OPEN request with no attributes.
1535 static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args)
1537 struct xdr_stream xdr;
1538 struct compound_hdr hdr = {
1543 status = nfs_wait_on_sequence(args->seqid, req->rq_task);
1546 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1547 encode_compound_hdr(&xdr, &hdr);
1548 status = encode_putfh(&xdr, args->fh);
1551 status = encode_open(&xdr, args);
1557 * Encode an OPEN_DOWNGRADE request
1559 static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args)
1561 struct xdr_stream xdr;
1562 struct compound_hdr hdr = {
1567 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1568 encode_compound_hdr(&xdr, &hdr);
1569 status = encode_putfh(&xdr, args->fh);
1572 status = encode_open_downgrade(&xdr, args);
1575 status = encode_getfattr(&xdr, args->bitmask);
1581 * Encode a LOCK request
1583 static int nfs4_xdr_enc_lock(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args)
1585 struct xdr_stream xdr;
1586 struct compound_hdr hdr = {
1589 struct nfs_lock_opargs *opargs = args->u.lock;
1592 status = nfs_wait_on_sequence(opargs->lock_seqid, req->rq_task);
1595 /* Do we need to do an open_to_lock_owner? */
1596 if (opargs->lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED)
1597 opargs->new_lock_owner = 0;
1598 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1599 encode_compound_hdr(&xdr, &hdr);
1600 status = encode_putfh(&xdr, args->fh);
1603 status = encode_lock(&xdr, args);
1609 * Encode a LOCKT request
1611 static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args)
1613 struct xdr_stream xdr;
1614 struct compound_hdr hdr = {
1619 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1620 encode_compound_hdr(&xdr, &hdr);
1621 status = encode_putfh(&xdr, args->fh);
1624 status = encode_lockt(&xdr, args);
1630 * Encode a LOCKU request
1632 static int nfs4_xdr_enc_locku(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args)
1634 struct xdr_stream xdr;
1635 struct compound_hdr hdr = {
1640 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1641 encode_compound_hdr(&xdr, &hdr);
1642 status = encode_putfh(&xdr, args->fh);
1645 status = encode_locku(&xdr, args);
1651 * Encode a READLINK request
1653 static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readlink *args)
1655 struct xdr_stream xdr;
1656 struct compound_hdr hdr = {
1661 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1662 encode_compound_hdr(&xdr, &hdr);
1663 status = encode_putfh(&xdr, args->fh);
1666 status = encode_readlink(&xdr, args, req);
1672 * Encode a READDIR request
1674 static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readdir_arg *args)
1676 struct xdr_stream xdr;
1677 struct compound_hdr hdr = {
1682 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1683 encode_compound_hdr(&xdr, &hdr);
1684 status = encode_putfh(&xdr, args->fh);
1687 status = encode_readdir(&xdr, args, req);
1693 * Encode a READ request
1695 static int nfs4_xdr_enc_read(struct rpc_rqst *req, uint32_t *p, struct nfs_readargs *args)
1697 struct rpc_auth *auth = req->rq_task->tk_auth;
1698 struct xdr_stream xdr;
1699 struct compound_hdr hdr = {
1704 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1705 encode_compound_hdr(&xdr, &hdr);
1706 status = encode_putfh(&xdr, args->fh);
1709 status = encode_read(&xdr, args);
1713 /* set up reply kvec
1714 * toplevel status + taglen=0 + rescount + OP_PUTFH + status
1715 * + OP_READ + status + eof + datalen = 9
1717 replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2;
1718 xdr_inline_pages(&req->rq_rcv_buf, replen,
1719 args->pages, args->pgbase, args->count);
1725 * Encode an SETATTR request
1727 static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, uint32_t *p, struct nfs_setattrargs *args)
1730 struct xdr_stream xdr;
1731 struct compound_hdr hdr = {
1736 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1737 encode_compound_hdr(&xdr, &hdr);
1738 status = encode_putfh(&xdr, args->fh);
1741 status = encode_setattr(&xdr, args, args->server);
1744 status = encode_getfattr(&xdr, args->bitmask);
1750 * Encode a GETACL request
1753 nfs4_xdr_enc_getacl(struct rpc_rqst *req, uint32_t *p,
1754 struct nfs_getaclargs *args)
1756 struct xdr_stream xdr;
1757 struct rpc_auth *auth = req->rq_task->tk_auth;
1758 struct compound_hdr hdr = {
1763 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1764 encode_compound_hdr(&xdr, &hdr);
1765 status = encode_putfh(&xdr, args->fh);
1768 status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0);
1769 /* set up reply buffer: */
1770 replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2;
1771 xdr_inline_pages(&req->rq_rcv_buf, replen,
1772 args->acl_pages, args->acl_pgbase, args->acl_len);
1778 * Encode a WRITE request
1780 static int nfs4_xdr_enc_write(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args)
1782 struct xdr_stream xdr;
1783 struct compound_hdr hdr = {
1788 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1789 encode_compound_hdr(&xdr, &hdr);
1790 status = encode_putfh(&xdr, args->fh);
1793 status = encode_write(&xdr, args);
1801 static int nfs4_xdr_enc_commit(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args)
1803 struct xdr_stream xdr;
1804 struct compound_hdr hdr = {
1809 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1810 encode_compound_hdr(&xdr, &hdr);
1811 status = encode_putfh(&xdr, args->fh);
1814 status = encode_commit(&xdr, args);
1822 static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs4_fsinfo_arg *args)
1824 struct xdr_stream xdr;
1825 struct compound_hdr hdr = {
1830 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1831 encode_compound_hdr(&xdr, &hdr);
1832 status = encode_putfh(&xdr, args->fh);
1834 status = encode_fsinfo(&xdr, args->bitmask);
1839 * a PATHCONF request
1841 static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, uint32_t *p, const struct nfs4_pathconf_arg *args)
1843 struct xdr_stream xdr;
1844 struct compound_hdr hdr = {
1849 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1850 encode_compound_hdr(&xdr, &hdr);
1851 status = encode_putfh(&xdr, args->fh);
1853 status = encode_getattr_one(&xdr,
1854 args->bitmask[0] & nfs4_pathconf_bitmap[0]);
1861 static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, uint32_t *p, const struct nfs4_statfs_arg *args)
1863 struct xdr_stream xdr;
1864 struct compound_hdr hdr = {
1869 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1870 encode_compound_hdr(&xdr, &hdr);
1871 status = encode_putfh(&xdr, args->fh);
1873 status = encode_getattr_two(&xdr,
1874 args->bitmask[0] & nfs4_statfs_bitmap[0],
1875 args->bitmask[1] & nfs4_statfs_bitmap[1]);
1880 * GETATTR_BITMAP request
1882 static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, uint32_t *p, const struct nfs_fh *fhandle)
1884 struct xdr_stream xdr;
1885 struct compound_hdr hdr = {
1890 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1891 encode_compound_hdr(&xdr, &hdr);
1892 status = encode_putfh(&xdr, fhandle);
1894 status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
1895 FATTR4_WORD0_LINK_SUPPORT|
1896 FATTR4_WORD0_SYMLINK_SUPPORT|
1897 FATTR4_WORD0_ACLSUPPORT);
1904 static int nfs4_xdr_enc_renew(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp)
1906 struct xdr_stream xdr;
1907 struct compound_hdr hdr = {
1911 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1912 encode_compound_hdr(&xdr, &hdr);
1913 return encode_renew(&xdr, clp);
1917 * a SETCLIENTID request
1919 static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, uint32_t *p, struct nfs4_setclientid *sc)
1921 struct xdr_stream xdr;
1922 struct compound_hdr hdr = {
1926 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1927 encode_compound_hdr(&xdr, &hdr);
1928 return encode_setclientid(&xdr, sc);
1932 * a SETCLIENTID_CONFIRM request
1934 static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp)
1936 struct xdr_stream xdr;
1937 struct compound_hdr hdr = {
1940 const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
1943 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1944 encode_compound_hdr(&xdr, &hdr);
1945 status = encode_setclientid_confirm(&xdr, clp);
1947 status = encode_putrootfh(&xdr);
1949 status = encode_fsinfo(&xdr, lease_bitmap);
1954 * DELEGRETURN request
1956 static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, uint32_t *p, const struct nfs4_delegreturnargs *args)
1958 struct xdr_stream xdr;
1959 struct compound_hdr hdr = {
1964 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1965 encode_compound_hdr(&xdr, &hdr);
1966 if ((status = encode_putfh(&xdr, args->fhandle)) == 0)
1967 status = encode_delegreturn(&xdr, args->stateid);
1972 * START OF "GENERIC" DECODE ROUTINES.
1973 * These may look a little ugly since they are imported from a "generic"
1974 * set of XDR encode/decode routines which are intended to be shared by
1975 * all of our NFSv4 implementations (OpenBSD, MacOS X...).
1977 * If the pain of reading these is too great, it should be a straightforward
1978 * task to translate them into Linux-specific versions which are more
1979 * consistent with the style used in NFSv2/v3...
1981 #define READ32(x) (x) = ntohl(*p++)
1982 #define READ64(x) do { \
1983 (x) = (u64)ntohl(*p++) << 32; \
1984 (x) |= ntohl(*p++); \
1986 #define READTIME(x) do { \
1988 (x.tv_sec) = ntohl(*p++); \
1989 (x.tv_nsec) = ntohl(*p++); \
1991 #define COPYMEM(x,nbytes) do { \
1992 memcpy((x), p, nbytes); \
1993 p += XDR_QUADLEN(nbytes); \
1996 #define READ_BUF(nbytes) do { \
1997 p = xdr_inline_decode(xdr, nbytes); \
1999 printk(KERN_WARNING "%s: reply buffer overflowed in line %d.", \
2000 __FUNCTION__, __LINE__); \
2005 static int decode_opaque_inline(struct xdr_stream *xdr, uint32_t *len, char **string)
2012 *string = (char *)p;
2016 static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
2021 READ32(hdr->status);
2022 READ32(hdr->taglen);
2024 READ_BUF(hdr->taglen + 4);
2025 hdr->tag = (char *)p;
2026 p += XDR_QUADLEN(hdr->taglen);
2031 static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
2039 if (opnum != expected) {
2041 "nfs4_decode_op_hdr: Server returned operation"
2042 " %d but we issued a request for %d\n",
2047 if (nfserr != NFS_OK)
2048 return -nfs_stat_to_errno(nfserr);
2053 static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs4_client *clp)
2060 return decode_opaque_inline(xdr, &strlen, &str);
2063 static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
2070 bitmap[0] = bitmap[1] = 0;
2071 READ_BUF((bmlen << 2));
2080 static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, uint32_t **savep)
2090 static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
2092 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
2093 decode_attr_bitmap(xdr, bitmask);
2094 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
2096 bitmask[0] = bitmask[1] = 0;
2097 dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]);
2101 static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
2106 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
2108 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
2111 if (*type < NF4REG || *type > NF4NAMEDATTR) {
2112 dprintk("%s: bad type %d\n", __FUNCTION__, *type);
2115 bitmap[0] &= ~FATTR4_WORD0_TYPE;
2117 dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type);
2121 static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
2126 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
2128 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
2131 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
2133 dprintk("%s: change attribute=%Lu\n", __FUNCTION__,
2134 (unsigned long long)*change);
2138 static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
2143 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
2145 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
2148 bitmap[0] &= ~FATTR4_WORD0_SIZE;
2150 dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size);
2154 static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2159 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
2161 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
2164 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
2166 dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true");
2170 static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2175 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
2177 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
2180 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
2182 dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true");
2186 static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fsid *fsid)
2192 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
2194 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
2196 READ64(fsid->major);
2197 READ64(fsid->minor);
2198 bitmap[0] &= ~FATTR4_WORD0_FSID;
2200 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__,
2201 (unsigned long long)fsid->major,
2202 (unsigned long long)fsid->minor);
2206 static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2211 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
2213 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
2216 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
2218 dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res);
2222 static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2226 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
2227 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
2229 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
2232 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
2234 dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res);
2238 static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
2243 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
2245 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
2248 bitmap[0] &= ~FATTR4_WORD0_FILEID;
2250 dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid);
2254 static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2260 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
2262 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
2265 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
2267 dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2271 static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2277 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
2279 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
2282 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
2284 dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2288 static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2294 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
2296 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
2299 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
2301 dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2305 static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2311 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
2313 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
2316 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
2318 dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2322 static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
2328 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
2330 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
2333 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
2335 dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink);
2339 static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
2345 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
2347 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
2350 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
2352 dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname);
2356 static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2362 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
2364 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
2368 if (maxread > 0x7FFFFFFF)
2369 maxread = 0x7FFFFFFF;
2370 *res = (uint32_t)maxread;
2371 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
2373 dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res);
2377 static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2383 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
2385 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
2389 if (maxwrite > 0x7FFFFFFF)
2390 maxwrite = 0x7FFFFFFF;
2391 *res = (uint32_t)maxwrite;
2392 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
2394 dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res);
2398 static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode)
2403 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
2405 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
2409 bitmap[1] &= ~FATTR4_WORD1_MODE;
2411 dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode);
2415 static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
2420 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
2422 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
2425 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
2427 dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink);
2431 static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *uid)
2436 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
2438 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
2442 if (len < XDR_MAX_NETOBJ) {
2443 if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0)
2444 dprintk("%s: nfs_map_name_to_uid failed!\n",
2447 printk(KERN_WARNING "%s: name too long (%u)!\n",
2449 bitmap[1] &= ~FATTR4_WORD1_OWNER;
2451 dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid);
2455 static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *gid)
2460 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
2462 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
2466 if (len < XDR_MAX_NETOBJ) {
2467 if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0)
2468 dprintk("%s: nfs_map_group_to_gid failed!\n",
2471 printk(KERN_WARNING "%s: name too long (%u)!\n",
2473 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
2475 dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid);
2479 static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
2481 uint32_t major = 0, minor = 0, *p;
2484 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
2486 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
2492 tmp = MKDEV(major, minor);
2493 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
2495 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
2497 dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor);
2501 static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2507 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
2509 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
2512 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
2514 dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2518 static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2524 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
2526 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
2529 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
2531 dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2535 static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2541 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
2543 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
2546 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
2548 dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2552 static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
2557 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
2559 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
2562 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
2564 dprintk("%s: space used=%Lu\n", __FUNCTION__,
2565 (unsigned long long)*used);
2569 static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
2578 time->tv_sec = (time_t)sec;
2579 time->tv_nsec = (long)nsec;
2583 static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2589 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
2591 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
2592 status = decode_attr_time(xdr, time);
2593 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
2595 dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2599 static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2605 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
2607 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
2608 status = decode_attr_time(xdr, time);
2609 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
2611 dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2615 static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2621 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
2623 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
2624 status = decode_attr_time(xdr, time);
2625 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
2627 dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2631 static int verify_attr_len(struct xdr_stream *xdr, uint32_t *savep, uint32_t attrlen)
2633 unsigned int attrwords = XDR_QUADLEN(attrlen);
2634 unsigned int nwords = xdr->p - savep;
2636 if (unlikely(attrwords != nwords)) {
2637 printk(KERN_WARNING "%s: server returned incorrect attribute length: %u %c %u\n",
2640 (attrwords < nwords) ? '<' : '>',
2647 static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2652 READ32(cinfo->atomic);
2653 READ64(cinfo->before);
2654 READ64(cinfo->after);
2658 static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
2664 status = decode_op_hdr(xdr, OP_ACCESS);
2670 access->supported = supp;
2671 access->access = acc;
2675 static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
2680 status = decode_op_hdr(xdr, OP_CLOSE);
2683 READ_BUF(sizeof(res->stateid.data));
2684 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
2688 static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
2693 status = decode_op_hdr(xdr, OP_COMMIT);
2697 COPYMEM(res->verf->verifier, 8);
2701 static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2707 status = decode_op_hdr(xdr, OP_CREATE);
2710 if ((status = decode_change_info(xdr, cinfo)))
2714 READ_BUF(bmlen << 2);
2718 static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
2725 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2727 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2729 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2731 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
2733 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
2735 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
2737 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
2739 status = verify_attr_len(xdr, savep, attrlen);
2742 printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
2746 static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
2753 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2755 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2757 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2760 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
2762 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
2764 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
2766 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
2768 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
2770 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
2773 status = verify_attr_len(xdr, savep, attrlen);
2776 printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
2780 static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
2787 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2789 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2791 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2794 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
2796 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
2799 status = verify_attr_len(xdr, savep, attrlen);
2802 printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
2806 static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server)
2812 int status, fmode = 0;
2814 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2816 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2819 fattr->bitmap[0] = bitmap[0];
2820 fattr->bitmap[1] = bitmap[1];
2822 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2826 if ((status = decode_attr_type(xdr, bitmap, &type)) != 0)
2828 fattr->type = nfs_type2fmt[type].nfs2type;
2829 fmode = nfs_type2fmt[type].mode;
2831 if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0)
2833 if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0)
2835 if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid_u.nfs4)) != 0)
2837 if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0)
2839 if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0)
2841 fattr->mode |= fmode;
2842 if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0)
2844 if ((status = decode_attr_owner(xdr, bitmap, server->nfs4_state, &fattr->uid)) != 0)
2846 if ((status = decode_attr_group(xdr, bitmap, server->nfs4_state, &fattr->gid)) != 0)
2848 if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0)
2850 if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0)
2852 if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0)
2854 if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0)
2856 if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0)
2858 if ((status = verify_attr_len(xdr, savep, attrlen)) == 0)
2859 fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4;
2862 printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
2867 static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
2870 uint32_t attrlen, bitmap[2];
2873 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2875 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2877 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2880 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
2882 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
2884 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
2886 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
2888 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
2889 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
2891 fsinfo->wtpref = fsinfo->wtmax;
2893 status = verify_attr_len(xdr, savep, attrlen);
2896 printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
2900 static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
2906 status = decode_op_hdr(xdr, OP_GETFH);
2909 /* Zero handle first to allow comparisons */
2910 memset(fh, 0, sizeof(*fh));
2914 if (len > NFS4_FHSIZE)
2918 COPYMEM(fh->data, len);
2922 static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2926 status = decode_op_hdr(xdr, OP_LINK);
2929 return decode_change_info(xdr, cinfo);
2933 * We create the owner, so we know a proper owner.id length is 4.
2935 static int decode_lock_denied (struct xdr_stream *xdr, struct nfs_lock_denied *denied)
2941 READ64(denied->offset);
2942 READ64(denied->length);
2943 READ32(denied->type);
2944 READ64(denied->owner.clientid);
2948 READ32(denied->owner.id);
2949 return -NFS4ERR_DENIED;
2952 static int decode_lock(struct xdr_stream *xdr, struct nfs_lockres *res)
2957 status = decode_op_hdr(xdr, OP_LOCK);
2959 READ_BUF(sizeof(res->u.stateid.data));
2960 COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data));
2961 } else if (status == -NFS4ERR_DENIED)
2962 return decode_lock_denied(xdr, &res->u.denied);
2966 static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockres *res)
2969 status = decode_op_hdr(xdr, OP_LOCKT);
2970 if (status == -NFS4ERR_DENIED)
2971 return decode_lock_denied(xdr, &res->u.denied);
2975 static int decode_locku(struct xdr_stream *xdr, struct nfs_lockres *res)
2980 status = decode_op_hdr(xdr, OP_LOCKU);
2982 READ_BUF(sizeof(res->u.stateid.data));
2983 COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data));
2988 static int decode_lookup(struct xdr_stream *xdr)
2990 return decode_op_hdr(xdr, OP_LOOKUP);
2993 /* This is too sick! */
2994 static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
2997 uint32_t limit_type, nblocks, blocksize;
3001 switch (limit_type) {
3008 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
3013 static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
3016 uint32_t delegation_type;
3019 READ32(delegation_type);
3020 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
3021 res->delegation_type = 0;
3025 COPYMEM(res->delegation.data, sizeof(res->delegation.data));
3026 READ32(res->do_recall);
3027 switch (delegation_type) {
3028 case NFS4_OPEN_DELEGATE_READ:
3029 res->delegation_type = FMODE_READ;
3031 case NFS4_OPEN_DELEGATE_WRITE:
3032 res->delegation_type = FMODE_WRITE|FMODE_READ;
3033 if (decode_space_limit(xdr, &res->maxsize) < 0)
3036 return decode_ace(xdr, NULL, res->server->nfs4_state);
3039 static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
3045 status = decode_op_hdr(xdr, OP_OPEN);
3048 READ_BUF(sizeof(res->stateid.data));
3049 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3051 decode_change_info(xdr, &res->cinfo);
3054 READ32(res->rflags);
3059 READ_BUF(bmlen << 2);
3061 return decode_delegation(xdr, res);
3063 printk(KERN_NOTICE "%s: xdr error!\n", __FUNCTION__);
3067 static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
3072 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
3075 READ_BUF(sizeof(res->stateid.data));
3076 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3080 static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
3085 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
3088 READ_BUF(sizeof(res->stateid.data));
3089 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3093 static int decode_putfh(struct xdr_stream *xdr)
3095 return decode_op_hdr(xdr, OP_PUTFH);
3098 static int decode_putrootfh(struct xdr_stream *xdr)
3100 return decode_op_hdr(xdr, OP_PUTROOTFH);
3103 static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res)
3105 struct kvec *iov = req->rq_rcv_buf.head;
3107 uint32_t count, eof, recvd, hdrlen;
3110 status = decode_op_hdr(xdr, OP_READ);
3116 hdrlen = (u8 *) p - (u8 *) iov->iov_base;
3117 recvd = req->rq_rcv_buf.len - hdrlen;
3118 if (count > recvd) {
3119 printk(KERN_WARNING "NFS: server cheating in read reply: "
3120 "count %u > recvd %u\n", count, recvd);
3124 xdr_read_pages(xdr, count);
3130 static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
3132 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
3133 struct page *page = *rcvbuf->pages;
3134 struct kvec *iov = rcvbuf->head;
3135 unsigned int nr, pglen = rcvbuf->page_len;
3136 uint32_t *end, *entry, *p, *kaddr;
3137 uint32_t len, attrlen;
3138 int hdrlen, recvd, status;
3140 status = decode_op_hdr(xdr, OP_READDIR);
3144 COPYMEM(readdir->verifier.data, 8);
3145 dprintk("%s: verifier = 0x%x%x\n",
3147 ((u32 *)readdir->verifier.data)[0],
3148 ((u32 *)readdir->verifier.data)[1]);
3151 hdrlen = (char *) p - (char *) iov->iov_base;
3152 recvd = rcvbuf->len - hdrlen;
3155 xdr_read_pages(xdr, pglen);
3157 BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE);
3158 kaddr = p = (uint32_t *) kmap_atomic(page, KM_USER0);
3159 end = (uint32_t *) ((char *)p + pglen + readdir->pgbase);
3161 for (nr = 0; *p++; nr++) {
3164 dprintk("cookie = %Lu, ", *((unsigned long long *)p));
3165 p += 2; /* cookie */
3166 len = ntohl(*p++); /* filename length */
3167 if (len > NFS4_MAXNAMLEN) {
3168 printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len);
3171 dprintk("filename = %*s\n", len, (char *)p);
3172 p += XDR_QUADLEN(len);
3175 len = ntohl(*p++); /* bitmap length */
3179 attrlen = XDR_QUADLEN(ntohl(*p++));
3180 p += attrlen; /* attributes */
3185 if (!nr && (entry[0] != 0 || entry[1] == 0))
3188 kunmap_atomic(kaddr, KM_USER0);
3191 dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr);
3192 entry[0] = entry[1] = 0;
3193 /* truncate listing ? */
3195 printk(KERN_NOTICE "NFS: readdir reply truncated!\n");
3200 kunmap_atomic(kaddr, KM_USER0);
3201 return -errno_NFSERR_IO;
3204 static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
3206 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
3207 struct kvec *iov = rcvbuf->head;
3208 int hdrlen, len, recvd;
3213 status = decode_op_hdr(xdr, OP_READLINK);
3217 /* Convert length of symlink */
3220 if (len >= rcvbuf->page_len || len <= 0) {
3221 dprintk(KERN_WARNING "nfs: server returned giant symlink!\n");
3222 return -ENAMETOOLONG;
3224 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
3225 recvd = req->rq_rcv_buf.len - hdrlen;
3227 printk(KERN_WARNING "NFS: server cheating in readlink reply: "
3228 "count %u > recvd %u\n", len, recvd);
3231 xdr_read_pages(xdr, len);
3233 * The XDR encode routine has set things up so that
3234 * the link text will be copied directly into the
3235 * buffer. We just have to do overflow-checking,
3236 * and and null-terminate the text (the VFS expects
3237 * null-termination).
3239 kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0);
3240 kaddr[len+rcvbuf->page_base] = '\0';
3241 kunmap_atomic(kaddr, KM_USER0);
3245 static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3249 status = decode_op_hdr(xdr, OP_REMOVE);
3252 status = decode_change_info(xdr, cinfo);
3257 static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
3258 struct nfs4_change_info *new_cinfo)
3262 status = decode_op_hdr(xdr, OP_RENAME);
3265 if ((status = decode_change_info(xdr, old_cinfo)))
3267 status = decode_change_info(xdr, new_cinfo);
3272 static int decode_renew(struct xdr_stream *xdr)
3274 return decode_op_hdr(xdr, OP_RENEW);
3278 decode_restorefh(struct xdr_stream *xdr)
3280 return decode_op_hdr(xdr, OP_RESTOREFH);
3283 static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
3289 struct kvec *iov = req->rq_rcv_buf.head;
3293 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3295 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3297 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3300 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
3302 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
3305 /* We ignore &savep and don't do consistency checks on
3306 * the attr length. Let userspace figure it out.... */
3307 hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base;
3308 recvd = req->rq_rcv_buf.len - hdrlen;
3309 if (attrlen > recvd) {
3310 printk(KERN_WARNING "NFS: server cheating in getattr"
3311 " acl reply: attrlen %u > recvd %u\n",
3315 if (attrlen <= *acl_len)
3316 xdr_read_pages(xdr, attrlen);
3319 status = -EOPNOTSUPP;
3326 decode_savefh(struct xdr_stream *xdr)
3328 return decode_op_hdr(xdr, OP_SAVEFH);
3331 static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res)
3338 status = decode_op_hdr(xdr, OP_SETATTR);
3343 READ_BUF(bmlen << 2);
3347 static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_client *clp)
3355 if (opnum != OP_SETCLIENTID) {
3357 "nfs4_decode_setclientid: Server returned operation"
3362 if (nfserr == NFS_OK) {
3363 READ_BUF(8 + sizeof(clp->cl_confirm.data));
3364 READ64(clp->cl_clientid);
3365 COPYMEM(clp->cl_confirm.data, sizeof(clp->cl_confirm.data));
3366 } else if (nfserr == NFSERR_CLID_INUSE) {
3369 /* skip netid string */
3374 /* skip uaddr string */
3378 return -NFSERR_CLID_INUSE;
3380 return -nfs_stat_to_errno(nfserr);
3385 static int decode_setclientid_confirm(struct xdr_stream *xdr)
3387 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
3390 static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
3395 status = decode_op_hdr(xdr, OP_WRITE);
3401 READ32(res->verf->committed);
3402 COPYMEM(res->verf->verifier, 8);
3406 static int decode_delegreturn(struct xdr_stream *xdr)
3408 return decode_op_hdr(xdr, OP_DELEGRETURN);
3412 * Decode OPEN_DOWNGRADE response
3414 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res)
3416 struct xdr_stream xdr;
3417 struct compound_hdr hdr;
3420 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3421 status = decode_compound_hdr(&xdr, &hdr);
3424 status = decode_putfh(&xdr);
3427 status = decode_open_downgrade(&xdr, res);
3430 decode_getfattr(&xdr, res->fattr, res->server);
3436 * END OF "GENERIC" DECODE ROUTINES.
3440 * Decode ACCESS response
3442 static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_accessres *res)
3444 struct xdr_stream xdr;
3445 struct compound_hdr hdr;
3448 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3449 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3451 if ((status = decode_putfh(&xdr)) == 0)
3452 status = decode_access(&xdr, res);
3458 * Decode LOOKUP response
3460 static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res)
3462 struct xdr_stream xdr;
3463 struct compound_hdr hdr;
3466 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3467 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3469 if ((status = decode_putfh(&xdr)) != 0)
3471 if ((status = decode_lookup(&xdr)) != 0)
3473 if ((status = decode_getfh(&xdr, res->fh)) != 0)
3475 status = decode_getfattr(&xdr, res->fattr, res->server);
3481 * Decode LOOKUP_ROOT response
3483 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res)
3485 struct xdr_stream xdr;
3486 struct compound_hdr hdr;
3489 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3490 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3492 if ((status = decode_putrootfh(&xdr)) != 0)
3494 if ((status = decode_getfh(&xdr, res->fh)) == 0)
3495 status = decode_getfattr(&xdr, res->fattr, res->server);
3501 * Decode REMOVE response
3503 static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_change_info *cinfo)
3505 struct xdr_stream xdr;
3506 struct compound_hdr hdr;
3509 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3510 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3512 if ((status = decode_putfh(&xdr)) == 0)
3513 status = decode_remove(&xdr, cinfo);
3519 * Decode RENAME response
3521 static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_rename_res *res)
3523 struct xdr_stream xdr;
3524 struct compound_hdr hdr;
3527 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3528 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3530 if ((status = decode_putfh(&xdr)) != 0)
3532 if ((status = decode_savefh(&xdr)) != 0)
3534 if ((status = decode_putfh(&xdr)) != 0)
3536 status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo);
3542 * Decode LINK response
3544 static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_link_res *res)
3546 struct xdr_stream xdr;
3547 struct compound_hdr hdr;
3550 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3551 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3553 if ((status = decode_putfh(&xdr)) != 0)
3555 if ((status = decode_savefh(&xdr)) != 0)
3557 if ((status = decode_putfh(&xdr)) != 0)
3559 if ((status = decode_link(&xdr, &res->cinfo)) != 0)
3562 * Note order: OP_LINK leaves the directory as the current
3565 if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0)
3567 if ((status = decode_restorefh(&xdr)) != 0)
3569 decode_getfattr(&xdr, res->fattr, res->server);
3575 * Decode CREATE response
3577 static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res)
3579 struct xdr_stream xdr;
3580 struct compound_hdr hdr;
3583 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3584 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3586 if ((status = decode_putfh(&xdr)) != 0)
3588 if ((status = decode_savefh(&xdr)) != 0)
3590 if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0)
3592 if ((status = decode_getfh(&xdr, res->fh)) != 0)
3594 if (decode_getfattr(&xdr, res->fattr, res->server) != 0)
3596 if ((status = decode_restorefh(&xdr)) != 0)
3598 decode_getfattr(&xdr, res->dir_fattr, res->server);
3604 * Decode SYMLINK response
3606 static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res)
3608 return nfs4_xdr_dec_create(rqstp, p, res);
3612 * Decode GETATTR response
3614 static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_getattr_res *res)
3616 struct xdr_stream xdr;
3617 struct compound_hdr hdr;
3620 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3621 status = decode_compound_hdr(&xdr, &hdr);
3624 status = decode_putfh(&xdr);
3627 status = decode_getfattr(&xdr, res->fattr, res->server);
3634 * Encode an SETACL request
3637 nfs4_xdr_enc_setacl(struct rpc_rqst *req, uint32_t *p, struct nfs_setaclargs *args)
3639 struct xdr_stream xdr;
3640 struct compound_hdr hdr = {
3645 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
3646 encode_compound_hdr(&xdr, &hdr);
3647 status = encode_putfh(&xdr, args->fh);
3650 status = encode_setacl(&xdr, args);
3655 * Decode SETACL response
3658 nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, uint32_t *p, void *res)
3660 struct xdr_stream xdr;
3661 struct compound_hdr hdr;
3664 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3665 status = decode_compound_hdr(&xdr, &hdr);
3668 status = decode_putfh(&xdr);
3671 status = decode_setattr(&xdr, res);
3677 * Decode GETACL response
3680 nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, uint32_t *p, size_t *acl_len)
3682 struct xdr_stream xdr;
3683 struct compound_hdr hdr;
3686 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3687 status = decode_compound_hdr(&xdr, &hdr);
3690 status = decode_putfh(&xdr);
3693 status = decode_getacl(&xdr, rqstp, acl_len);
3700 * Decode CLOSE response
3702 static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res)
3704 struct xdr_stream xdr;
3705 struct compound_hdr hdr;
3708 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3709 status = decode_compound_hdr(&xdr, &hdr);
3712 status = decode_putfh(&xdr);
3715 status = decode_close(&xdr, res);
3719 * Note: Server may do delete on close for this file
3720 * in which case the getattr call will fail with
3721 * an ESTALE error. Shouldn't be a problem,
3722 * though, since fattr->valid will remain unset.
3724 decode_getfattr(&xdr, res->fattr, res->server);
3730 * Decode OPEN response
3732 static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res)
3734 struct xdr_stream xdr;
3735 struct compound_hdr hdr;
3738 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3739 status = decode_compound_hdr(&xdr, &hdr);
3742 status = decode_putfh(&xdr);
3745 status = decode_savefh(&xdr);
3748 status = decode_open(&xdr, res);
3751 status = decode_getfh(&xdr, &res->fh);
3754 if (decode_getfattr(&xdr, res->f_attr, res->server) != 0)
3756 if ((status = decode_restorefh(&xdr)) != 0)
3758 decode_getfattr(&xdr, res->dir_attr, res->server);
3764 * Decode OPEN_CONFIRM response
3766 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_open_confirmres *res)
3768 struct xdr_stream xdr;
3769 struct compound_hdr hdr;
3772 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3773 status = decode_compound_hdr(&xdr, &hdr);
3776 status = decode_putfh(&xdr);
3779 status = decode_open_confirm(&xdr, res);
3785 * Decode OPEN response
3787 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res)
3789 struct xdr_stream xdr;
3790 struct compound_hdr hdr;
3793 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3794 status = decode_compound_hdr(&xdr, &hdr);
3797 status = decode_putfh(&xdr);
3800 status = decode_open(&xdr, res);
3806 * Decode SETATTR response
3808 static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_setattrres *res)
3810 struct xdr_stream xdr;
3811 struct compound_hdr hdr;
3814 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3815 status = decode_compound_hdr(&xdr, &hdr);
3818 status = decode_putfh(&xdr);
3821 status = decode_setattr(&xdr, res);
3824 status = decode_getfattr(&xdr, res->fattr, res->server);
3825 if (status == NFS4ERR_DELAY)
3832 * Decode LOCK response
3834 static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res)
3836 struct xdr_stream xdr;
3837 struct compound_hdr hdr;
3840 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3841 status = decode_compound_hdr(&xdr, &hdr);
3844 status = decode_putfh(&xdr);
3847 status = decode_lock(&xdr, res);
3853 * Decode LOCKT response
3855 static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res)
3857 struct xdr_stream xdr;
3858 struct compound_hdr hdr;
3861 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3862 status = decode_compound_hdr(&xdr, &hdr);
3865 status = decode_putfh(&xdr);
3868 status = decode_lockt(&xdr, res);
3874 * Decode LOCKU response
3876 static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res)
3878 struct xdr_stream xdr;
3879 struct compound_hdr hdr;
3882 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3883 status = decode_compound_hdr(&xdr, &hdr);
3886 status = decode_putfh(&xdr);
3889 status = decode_locku(&xdr, res);
3895 * Decode READLINK response
3897 static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, uint32_t *p, void *res)
3899 struct xdr_stream xdr;
3900 struct compound_hdr hdr;
3903 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3904 status = decode_compound_hdr(&xdr, &hdr);
3907 status = decode_putfh(&xdr);
3910 status = decode_readlink(&xdr, rqstp);
3916 * Decode READDIR response
3918 static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_readdir_res *res)
3920 struct xdr_stream xdr;
3921 struct compound_hdr hdr;
3924 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3925 status = decode_compound_hdr(&xdr, &hdr);
3928 status = decode_putfh(&xdr);
3931 status = decode_readdir(&xdr, rqstp, res);
3937 * Decode Read response
3939 static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_readres *res)
3941 struct xdr_stream xdr;
3942 struct compound_hdr hdr;
3945 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3946 status = decode_compound_hdr(&xdr, &hdr);
3949 status = decode_putfh(&xdr);
3952 status = decode_read(&xdr, rqstp, res);
3954 status = res->count;
3960 * Decode WRITE response
3962 static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res)
3964 struct xdr_stream xdr;
3965 struct compound_hdr hdr;
3968 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3969 status = decode_compound_hdr(&xdr, &hdr);
3972 status = decode_putfh(&xdr);
3975 status = decode_write(&xdr, res);
3977 status = res->count;
3983 * Decode COMMIT response
3985 static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res)
3987 struct xdr_stream xdr;
3988 struct compound_hdr hdr;
3991 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3992 status = decode_compound_hdr(&xdr, &hdr);
3995 status = decode_putfh(&xdr);
3998 status = decode_commit(&xdr, res);
4006 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo)
4008 struct xdr_stream xdr;
4009 struct compound_hdr hdr;
4012 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4013 status = decode_compound_hdr(&xdr, &hdr);
4015 status = decode_putfh(&xdr);
4017 status = decode_fsinfo(&xdr, fsinfo);
4019 status = -nfs_stat_to_errno(hdr.status);
4026 static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, uint32_t *p, struct nfs_pathconf *pathconf)
4028 struct xdr_stream xdr;
4029 struct compound_hdr hdr;
4032 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4033 status = decode_compound_hdr(&xdr, &hdr);
4035 status = decode_putfh(&xdr);
4037 status = decode_pathconf(&xdr, pathconf);
4044 static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, uint32_t *p, struct nfs_fsstat *fsstat)
4046 struct xdr_stream xdr;
4047 struct compound_hdr hdr;
4050 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4051 status = decode_compound_hdr(&xdr, &hdr);
4053 status = decode_putfh(&xdr);
4055 status = decode_statfs(&xdr, fsstat);
4060 * GETATTR_BITMAP request
4062 static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, uint32_t *p, struct nfs4_server_caps_res *res)
4064 struct xdr_stream xdr;
4065 struct compound_hdr hdr;
4068 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4069 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
4071 if ((status = decode_putfh(&xdr)) != 0)
4073 status = decode_server_caps(&xdr, res);
4079 * Decode RENEW response
4081 static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, uint32_t *p, void *dummy)
4083 struct xdr_stream xdr;
4084 struct compound_hdr hdr;
4087 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4088 status = decode_compound_hdr(&xdr, &hdr);
4090 status = decode_renew(&xdr);
4095 * a SETCLIENTID request
4097 static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, uint32_t *p,
4098 struct nfs4_client *clp)
4100 struct xdr_stream xdr;
4101 struct compound_hdr hdr;
4104 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4105 status = decode_compound_hdr(&xdr, &hdr);
4107 status = decode_setclientid(&xdr, clp);
4109 status = -nfs_stat_to_errno(hdr.status);
4114 * a SETCLIENTID_CONFIRM request
4116 static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo)
4118 struct xdr_stream xdr;
4119 struct compound_hdr hdr;
4122 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4123 status = decode_compound_hdr(&xdr, &hdr);
4125 status = decode_setclientid_confirm(&xdr);
4127 status = decode_putrootfh(&xdr);
4129 status = decode_fsinfo(&xdr, fsinfo);
4131 status = -nfs_stat_to_errno(hdr.status);
4136 * DELEGRETURN request
4138 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, void *dummy)
4140 struct xdr_stream xdr;
4141 struct compound_hdr hdr;
4144 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4145 status = decode_compound_hdr(&xdr, &hdr);
4147 status = decode_putfh(&xdr);
4149 status = decode_delegreturn(&xdr);
4154 uint32_t *nfs4_decode_dirent(uint32_t *p, struct nfs_entry *entry, int plus)
4156 uint32_t bitmap[2] = {0};
4161 return ERR_PTR(-EAGAIN);
4163 return ERR_PTR(-EBADCOOKIE);
4166 entry->prev_cookie = entry->cookie;
4167 p = xdr_decode_hyper(p, &entry->cookie);
4168 entry->len = ntohl(*p++);
4169 entry->name = (const char *) p;
4170 p += XDR_QUADLEN(entry->len);
4173 * In case the server doesn't return an inode number,
4174 * we fake one here. (We don't use inode number 0,
4175 * since glibc seems to choke on it...)
4179 len = ntohl(*p++); /* bitmap length */
4181 bitmap[0] = ntohl(*p++);
4183 bitmap[1] = ntohl(*p++);
4187 len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */
4189 if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) {
4190 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
4191 /* Ignore the return value of rdattr_error for now */
4195 if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID)
4196 xdr_decode_hyper(p, &entry->ino);
4197 else if (bitmap[0] == FATTR4_WORD0_FILEID)
4198 xdr_decode_hyper(p, &entry->ino);
4202 entry->eof = !p[0] && p[1];
4207 * We need to translate between nfs status return values and
4208 * the local errno values which may not be the same.
4215 { NFS4ERR_PERM, EPERM },
4216 { NFS4ERR_NOENT, ENOENT },
4217 { NFS4ERR_IO, errno_NFSERR_IO },
4218 { NFS4ERR_NXIO, ENXIO },
4219 { NFS4ERR_ACCESS, EACCES },
4220 { NFS4ERR_EXIST, EEXIST },
4221 { NFS4ERR_XDEV, EXDEV },
4222 { NFS4ERR_NOTDIR, ENOTDIR },
4223 { NFS4ERR_ISDIR, EISDIR },
4224 { NFS4ERR_INVAL, EINVAL },
4225 { NFS4ERR_FBIG, EFBIG },
4226 { NFS4ERR_NOSPC, ENOSPC },
4227 { NFS4ERR_ROFS, EROFS },
4228 { NFS4ERR_MLINK, EMLINK },
4229 { NFS4ERR_NAMETOOLONG, ENAMETOOLONG },
4230 { NFS4ERR_NOTEMPTY, ENOTEMPTY },
4231 { NFS4ERR_DQUOT, EDQUOT },
4232 { NFS4ERR_STALE, ESTALE },
4233 { NFS4ERR_BADHANDLE, EBADHANDLE },
4234 { NFS4ERR_BADOWNER, EINVAL },
4235 { NFS4ERR_BADNAME, EINVAL },
4236 { NFS4ERR_BAD_COOKIE, EBADCOOKIE },
4237 { NFS4ERR_NOTSUPP, ENOTSUPP },
4238 { NFS4ERR_TOOSMALL, ETOOSMALL },
4239 { NFS4ERR_SERVERFAULT, ESERVERFAULT },
4240 { NFS4ERR_BADTYPE, EBADTYPE },
4241 { NFS4ERR_LOCKED, EAGAIN },
4242 { NFS4ERR_RESOURCE, EREMOTEIO },
4243 { NFS4ERR_SYMLINK, ELOOP },
4244 { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP },
4245 { NFS4ERR_DEADLOCK, EDEADLK },
4246 { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs
4247 * to be handled by a
4254 * Convert an NFS error code to a local one.
4255 * This one is used jointly by NFSv2 and NFSv3.
4258 nfs_stat_to_errno(int stat)
4261 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
4262 if (nfs_errtbl[i].stat == stat)
4263 return nfs_errtbl[i].errno;
4265 if (stat <= 10000 || stat > 10100) {
4266 /* The server is looney tunes. */
4267 return ESERVERFAULT;
4269 /* If we cannot translate the error, the recovery routines should
4271 * Note: remaining NFSv4 error codes have values > 10000, so should
4272 * not conflict with native Linux error codes.
4278 # define MAX(a, b) (((a) > (b))? (a) : (b))
4281 #define PROC(proc, argtype, restype) \
4282 [NFSPROC4_CLNT_##proc] = { \
4283 .p_proc = NFSPROC4_COMPOUND, \
4284 .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \
4285 .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \
4286 .p_bufsiz = MAX(NFS4_##argtype##_sz,NFS4_##restype##_sz) << 2, \
4289 struct rpc_procinfo nfs4_procedures[] = {
4290 PROC(READ, enc_read, dec_read),
4291 PROC(WRITE, enc_write, dec_write),
4292 PROC(COMMIT, enc_commit, dec_commit),
4293 PROC(OPEN, enc_open, dec_open),
4294 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
4295 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
4296 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
4297 PROC(CLOSE, enc_close, dec_close),
4298 PROC(SETATTR, enc_setattr, dec_setattr),
4299 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
4300 PROC(RENEW, enc_renew, dec_renew),
4301 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
4302 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
4303 PROC(LOCK, enc_lock, dec_lock),
4304 PROC(LOCKT, enc_lockt, dec_lockt),
4305 PROC(LOCKU, enc_locku, dec_locku),
4306 PROC(ACCESS, enc_access, dec_access),
4307 PROC(GETATTR, enc_getattr, dec_getattr),
4308 PROC(LOOKUP, enc_lookup, dec_lookup),
4309 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
4310 PROC(REMOVE, enc_remove, dec_remove),
4311 PROC(RENAME, enc_rename, dec_rename),
4312 PROC(LINK, enc_link, dec_link),
4313 PROC(SYMLINK, enc_symlink, dec_symlink),
4314 PROC(CREATE, enc_create, dec_create),
4315 PROC(PATHCONF, enc_pathconf, dec_pathconf),
4316 PROC(STATFS, enc_statfs, dec_statfs),
4317 PROC(READLINK, enc_readlink, dec_readlink),
4318 PROC(READDIR, enc_readdir, dec_readdir),
4319 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
4320 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
4321 PROC(GETACL, enc_getacl, dec_getacl),
4322 PROC(SETACL, enc_setacl, dec_setacl),
4325 struct rpc_version nfs_version4 = {
4327 .nrprocs = sizeof(nfs4_procedures)/sizeof(nfs4_procedures[0]),
4328 .procs = nfs4_procedures