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 + \
317 encode_rename_maxsz + \
318 encode_getattr_maxsz + \
319 encode_restorefh_maxsz + \
320 encode_getattr_maxsz)
321 #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
322 decode_putfh_maxsz + \
323 decode_savefh_maxsz + \
324 decode_putfh_maxsz + \
325 decode_rename_maxsz + \
326 decode_getattr_maxsz + \
327 decode_restorefh_maxsz + \
328 decode_getattr_maxsz)
329 #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
330 encode_putfh_maxsz + \
331 encode_savefh_maxsz + \
332 encode_putfh_maxsz + \
333 encode_link_maxsz + \
334 decode_getattr_maxsz + \
335 encode_restorefh_maxsz + \
336 decode_getattr_maxsz)
337 #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
338 decode_putfh_maxsz + \
339 decode_savefh_maxsz + \
340 decode_putfh_maxsz + \
341 decode_link_maxsz + \
342 decode_getattr_maxsz + \
343 decode_restorefh_maxsz + \
344 decode_getattr_maxsz)
345 #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
346 encode_putfh_maxsz + \
347 encode_symlink_maxsz + \
348 encode_getattr_maxsz + \
350 #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
351 decode_putfh_maxsz + \
352 decode_symlink_maxsz + \
353 decode_getattr_maxsz + \
355 #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
356 encode_putfh_maxsz + \
357 encode_savefh_maxsz + \
358 encode_create_maxsz + \
359 encode_getfh_maxsz + \
360 encode_getattr_maxsz + \
361 encode_restorefh_maxsz + \
362 encode_getattr_maxsz)
363 #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
364 decode_putfh_maxsz + \
365 decode_savefh_maxsz + \
366 decode_create_maxsz + \
367 decode_getfh_maxsz + \
368 decode_getattr_maxsz + \
369 decode_restorefh_maxsz + \
370 decode_getattr_maxsz)
371 #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
372 encode_putfh_maxsz + \
373 encode_getattr_maxsz)
374 #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
375 decode_putfh_maxsz + \
376 decode_getattr_maxsz)
377 #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
378 encode_putfh_maxsz + \
379 encode_getattr_maxsz)
380 #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
381 decode_putfh_maxsz + \
382 op_decode_hdr_maxsz + 12)
383 #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
384 encode_getattr_maxsz)
385 #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
386 decode_getattr_maxsz)
387 #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
388 encode_putfh_maxsz + \
389 encode_delegreturn_maxsz)
390 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
391 decode_delegreturn_maxsz)
392 #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
393 encode_putfh_maxsz + \
394 encode_getattr_maxsz)
395 #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
396 decode_putfh_maxsz + \
397 op_decode_hdr_maxsz + \
398 nfs4_fattr_bitmap_maxsz + 1)
399 #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
400 encode_putfh_maxsz + \
401 op_encode_hdr_maxsz + 4 + \
402 nfs4_fattr_bitmap_maxsz + 1)
403 #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
404 decode_putfh_maxsz + \
405 op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
409 unsigned int nfs2type;
417 { S_IFSOCK, NFSOCK },
423 struct compound_hdr {
431 * START OF "GENERIC" ENCODE ROUTINES.
432 * These may look a little ugly since they are imported from a "generic"
433 * set of XDR encode/decode routines which are intended to be shared by
434 * all of our NFSv4 implementations (OpenBSD, MacOS X...).
436 * If the pain of reading these is too great, it should be a straightforward
437 * task to translate them into Linux-specific versions which are more
438 * consistent with the style used in NFSv2/v3...
440 #define WRITE32(n) *p++ = htonl(n)
441 #define WRITE64(n) do { \
442 *p++ = htonl((uint32_t)((n) >> 32)); \
443 *p++ = htonl((uint32_t)(n)); \
445 #define WRITEMEM(ptr,nbytes) do { \
446 p = xdr_encode_opaque_fixed(p, ptr, nbytes); \
449 #define RESERVE_SPACE(nbytes) do { \
450 p = xdr_reserve_space(xdr, nbytes); \
451 if (!p) printk("RESERVE_SPACE(%d) failed in function %s\n", (int) (nbytes), __FUNCTION__); \
455 static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
459 p = xdr_reserve_space(xdr, 4 + len);
461 xdr_encode_opaque(p, str, len);
464 static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
468 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag);
469 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN);
470 RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2));
471 WRITE32(hdr->taglen);
472 WRITEMEM(hdr->tag, hdr->taglen);
473 WRITE32(NFS4_MINOR_VERSION);
478 static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
482 p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE);
484 xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE);
487 static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
489 char owner_name[IDMAP_NAMESZ];
490 char owner_group[IDMAP_NAMESZ];
491 int owner_namelen = 0;
492 int owner_grouplen = 0;
501 * We reserve enough space to write the entire attribute buffer at once.
502 * In the worst-case, this would be
503 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
504 * = 36 bytes, plus any contribution from variable-length fields
505 * such as owner/group.
510 if (iap->ia_valid & ATTR_SIZE)
512 if (iap->ia_valid & ATTR_MODE)
514 if (iap->ia_valid & ATTR_UID) {
515 owner_namelen = nfs_map_uid_to_name(server->nfs4_state, iap->ia_uid, owner_name);
516 if (owner_namelen < 0) {
517 printk(KERN_WARNING "nfs: couldn't resolve uid %d to string\n",
520 strcpy(owner_name, "nobody");
521 owner_namelen = sizeof("nobody") - 1;
524 len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
526 if (iap->ia_valid & ATTR_GID) {
527 owner_grouplen = nfs_map_gid_to_group(server->nfs4_state, iap->ia_gid, owner_group);
528 if (owner_grouplen < 0) {
529 printk(KERN_WARNING "nfs4: couldn't resolve gid %d to string\n",
531 strcpy(owner_group, "nobody");
532 owner_grouplen = sizeof("nobody") - 1;
535 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
537 if (iap->ia_valid & ATTR_ATIME_SET)
539 else if (iap->ia_valid & ATTR_ATIME)
541 if (iap->ia_valid & ATTR_MTIME_SET)
543 else if (iap->ia_valid & ATTR_MTIME)
548 * We write the bitmap length now, but leave the bitmap and the attribute
549 * buffer length to be backfilled at the end of this routine.
555 if (iap->ia_valid & ATTR_SIZE) {
556 bmval0 |= FATTR4_WORD0_SIZE;
557 WRITE64(iap->ia_size);
559 if (iap->ia_valid & ATTR_MODE) {
560 bmval1 |= FATTR4_WORD1_MODE;
561 WRITE32(iap->ia_mode);
563 if (iap->ia_valid & ATTR_UID) {
564 bmval1 |= FATTR4_WORD1_OWNER;
565 WRITE32(owner_namelen);
566 WRITEMEM(owner_name, owner_namelen);
568 if (iap->ia_valid & ATTR_GID) {
569 bmval1 |= FATTR4_WORD1_OWNER_GROUP;
570 WRITE32(owner_grouplen);
571 WRITEMEM(owner_group, owner_grouplen);
573 if (iap->ia_valid & ATTR_ATIME_SET) {
574 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
575 WRITE32(NFS4_SET_TO_CLIENT_TIME);
577 WRITE32(iap->ia_mtime.tv_sec);
578 WRITE32(iap->ia_mtime.tv_nsec);
580 else if (iap->ia_valid & ATTR_ATIME) {
581 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
582 WRITE32(NFS4_SET_TO_SERVER_TIME);
584 if (iap->ia_valid & ATTR_MTIME_SET) {
585 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
586 WRITE32(NFS4_SET_TO_CLIENT_TIME);
588 WRITE32(iap->ia_mtime.tv_sec);
589 WRITE32(iap->ia_mtime.tv_nsec);
591 else if (iap->ia_valid & ATTR_MTIME) {
592 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
593 WRITE32(NFS4_SET_TO_SERVER_TIME);
597 * Now we backfill the bitmap and the attribute buffer length.
599 if (len != ((char *)p - (char *)q) + 4) {
600 printk ("encode_attr: Attr length calculation error! %u != %Zu\n",
601 len, ((char *)p - (char *)q) + 4);
604 len = (char *)p - (char *)q - 12;
605 *q++ = htonl(bmval0);
606 *q++ = htonl(bmval1);
614 static int encode_access(struct xdr_stream *xdr, u32 access)
625 static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg)
629 RESERVE_SPACE(8+sizeof(arg->stateid->data));
631 WRITE32(arg->seqid->sequence->counter);
632 WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
637 static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args)
643 WRITE64(args->offset);
644 WRITE32(args->count);
649 static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create)
655 WRITE32(create->ftype);
657 switch (create->ftype) {
659 RESERVE_SPACE(4 + create->u.symlink->len);
660 WRITE32(create->u.symlink->len);
661 WRITEMEM(create->u.symlink->name, create->u.symlink->len);
664 case NF4BLK: case NF4CHR:
666 WRITE32(create->u.device.specdata1);
667 WRITE32(create->u.device.specdata2);
674 RESERVE_SPACE(4 + create->name->len);
675 WRITE32(create->name->len);
676 WRITEMEM(create->name->name, create->name->len);
678 return encode_attrs(xdr, create->attrs, create->server);
681 static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap)
692 static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1)
704 static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask)
706 return encode_getattr_two(xdr,
707 bitmask[0] & nfs4_fattr_bitmap[0],
708 bitmask[1] & nfs4_fattr_bitmap[1]);
711 static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask)
713 return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0],
714 bitmask[1] & nfs4_fsinfo_bitmap[1]);
717 static int encode_getfh(struct xdr_stream *xdr)
727 static int encode_link(struct xdr_stream *xdr, const struct qstr *name)
731 RESERVE_SPACE(8 + name->len);
734 WRITEMEM(name->name, name->len);
740 * opcode,type,reclaim,offset,length,new_lock_owner = 32
741 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
743 static int encode_lock(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
746 struct nfs_lock_opargs *opargs = arg->u.lock;
751 WRITE32(opargs->reclaim);
752 WRITE64(arg->offset);
753 WRITE64(arg->length);
754 WRITE32(opargs->new_lock_owner);
755 if (opargs->new_lock_owner){
757 WRITE32(opargs->open_seqid->sequence->counter);
758 WRITEMEM(opargs->open_stateid->data, sizeof(opargs->open_stateid->data));
759 WRITE32(opargs->lock_seqid->sequence->counter);
760 WRITE64(opargs->lock_owner.clientid);
762 WRITE32(opargs->lock_owner.id);
766 WRITEMEM(opargs->lock_stateid->data, sizeof(opargs->lock_stateid->data));
767 WRITE32(opargs->lock_seqid->sequence->counter);
773 static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
776 struct nfs_lowner *opargs = arg->u.lockt;
781 WRITE64(arg->offset);
782 WRITE64(arg->length);
783 WRITE64(opargs->clientid);
790 static int encode_locku(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
793 struct nfs_locku_opargs *opargs = arg->u.locku;
798 WRITE32(opargs->seqid->sequence->counter);
799 WRITEMEM(opargs->stateid->data, sizeof(opargs->stateid->data));
800 WRITE64(arg->offset);
801 WRITE64(arg->length);
806 static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name)
811 RESERVE_SPACE(8 + len);
814 WRITEMEM(name->name, len);
819 static void encode_share_access(struct xdr_stream *xdr, int open_flags)
824 switch (open_flags & (FMODE_READ|FMODE_WRITE)) {
826 WRITE32(NFS4_SHARE_ACCESS_READ);
829 WRITE32(NFS4_SHARE_ACCESS_WRITE);
831 case FMODE_READ|FMODE_WRITE:
832 WRITE32(NFS4_SHARE_ACCESS_BOTH);
837 WRITE32(0); /* for linux, share_deny = 0 always */
840 static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
844 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
849 WRITE32(arg->seqid->sequence->counter);
850 encode_share_access(xdr, arg->open_flags);
852 WRITE64(arg->clientid);
857 static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
862 switch(arg->open_flags & O_EXCL) {
864 WRITE32(NFS4_CREATE_UNCHECKED);
865 encode_attrs(xdr, arg->u.attrs, arg->server);
868 WRITE32(NFS4_CREATE_EXCLUSIVE);
869 encode_nfs4_verifier(xdr, &arg->u.verifier);
873 static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
878 switch (arg->open_flags & O_CREAT) {
880 WRITE32(NFS4_OPEN_NOCREATE);
883 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
884 WRITE32(NFS4_OPEN_CREATE);
885 encode_createmode(xdr, arg);
889 static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type)
894 switch (delegation_type) {
896 WRITE32(NFS4_OPEN_DELEGATE_NONE);
899 WRITE32(NFS4_OPEN_DELEGATE_READ);
901 case FMODE_WRITE|FMODE_READ:
902 WRITE32(NFS4_OPEN_DELEGATE_WRITE);
909 static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
914 WRITE32(NFS4_OPEN_CLAIM_NULL);
915 encode_string(xdr, name->len, name->name);
918 static inline void encode_claim_previous(struct xdr_stream *xdr, int type)
923 WRITE32(NFS4_OPEN_CLAIM_PREVIOUS);
924 encode_delegation_type(xdr, type);
927 static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
931 RESERVE_SPACE(4+sizeof(stateid->data));
932 WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
933 WRITEMEM(stateid->data, sizeof(stateid->data));
934 encode_string(xdr, name->len, name->name);
937 static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg)
939 encode_openhdr(xdr, arg);
940 encode_opentype(xdr, arg);
941 switch (arg->claim) {
942 case NFS4_OPEN_CLAIM_NULL:
943 encode_claim_null(xdr, arg->name);
945 case NFS4_OPEN_CLAIM_PREVIOUS:
946 encode_claim_previous(xdr, arg->u.delegation_type);
948 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
949 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
957 static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg)
961 RESERVE_SPACE(8+sizeof(arg->stateid.data));
962 WRITE32(OP_OPEN_CONFIRM);
963 WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
964 WRITE32(arg->seqid->sequence->counter);
969 static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg)
973 RESERVE_SPACE(8+sizeof(arg->stateid->data));
974 WRITE32(OP_OPEN_DOWNGRADE);
975 WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
976 WRITE32(arg->seqid->sequence->counter);
977 encode_share_access(xdr, arg->open_flags);
982 encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh)
987 RESERVE_SPACE(8 + len);
990 WRITEMEM(fh->data, len);
995 static int encode_putrootfh(struct xdr_stream *xdr)
1000 WRITE32(OP_PUTROOTFH);
1005 static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx)
1007 nfs4_stateid stateid;
1011 if (ctx->state != NULL) {
1012 nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner);
1013 WRITEMEM(stateid.data, sizeof(stateid.data));
1015 WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data));
1018 static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args)
1025 encode_stateid(xdr, args->context);
1028 WRITE64(args->offset);
1029 WRITE32(args->count);
1034 static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req)
1036 struct rpc_auth *auth = req->rq_task->tk_auth;
1037 uint32_t attrs[2] = {
1038 FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID,
1039 FATTR4_WORD1_MOUNTED_ON_FILEID,
1044 RESERVE_SPACE(32+sizeof(nfs4_verifier));
1045 WRITE32(OP_READDIR);
1046 WRITE64(readdir->cookie);
1047 WRITEMEM(readdir->verifier.data, sizeof(readdir->verifier.data));
1048 WRITE32(readdir->count >> 1); /* We're not doing readdirplus */
1049 WRITE32(readdir->count);
1051 /* Switch to mounted_on_fileid if the server supports it */
1052 if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)
1053 attrs[0] &= ~FATTR4_WORD0_FILEID;
1055 attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
1056 WRITE32(attrs[0] & readdir->bitmask[0]);
1057 WRITE32(attrs[1] & readdir->bitmask[1]);
1058 dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n",
1060 (unsigned long long)readdir->cookie,
1061 ((u32 *)readdir->verifier.data)[0],
1062 ((u32 *)readdir->verifier.data)[1],
1063 attrs[0] & readdir->bitmask[0],
1064 attrs[1] & readdir->bitmask[1]);
1066 /* set up reply kvec
1067 * toplevel_status + taglen + rescount + OP_PUTFH + status
1068 * + OP_READDIR + status + verifer(2) = 9
1070 replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2;
1071 xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages,
1072 readdir->pgbase, readdir->count);
1073 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
1074 __FUNCTION__, replen, readdir->pages,
1075 readdir->pgbase, readdir->count);
1080 static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req)
1082 struct rpc_auth *auth = req->rq_task->tk_auth;
1083 unsigned int replen;
1087 WRITE32(OP_READLINK);
1089 /* set up reply kvec
1090 * toplevel_status + taglen + rescount + OP_PUTFH + status
1091 * + OP_READLINK + status + string length = 8
1093 replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2;
1094 xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages,
1095 readlink->pgbase, readlink->pglen);
1100 static int encode_remove(struct xdr_stream *xdr, const struct qstr *name)
1104 RESERVE_SPACE(8 + name->len);
1107 WRITEMEM(name->name, name->len);
1112 static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname)
1116 RESERVE_SPACE(8 + oldname->len);
1118 WRITE32(oldname->len);
1119 WRITEMEM(oldname->name, oldname->len);
1121 RESERVE_SPACE(4 + newname->len);
1122 WRITE32(newname->len);
1123 WRITEMEM(newname->name, newname->len);
1128 static int encode_renew(struct xdr_stream *xdr, const struct nfs4_client *client_stateid)
1134 WRITE64(client_stateid->cl_clientid);
1140 encode_restorefh(struct xdr_stream *xdr)
1145 WRITE32(OP_RESTOREFH);
1151 encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg)
1155 RESERVE_SPACE(4+sizeof(zero_stateid.data));
1156 WRITE32(OP_SETATTR);
1157 WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data));
1160 WRITE32(FATTR4_WORD0_ACL);
1161 if (arg->acl_len % 4)
1164 WRITE32(arg->acl_len);
1165 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
1170 encode_savefh(struct xdr_stream *xdr)
1180 static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server)
1185 RESERVE_SPACE(4+sizeof(arg->stateid.data));
1186 WRITE32(OP_SETATTR);
1187 WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
1189 if ((status = encode_attrs(xdr, arg->iap, server)))
1195 static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid)
1199 RESERVE_SPACE(4 + sizeof(setclientid->sc_verifier->data));
1200 WRITE32(OP_SETCLIENTID);
1201 WRITEMEM(setclientid->sc_verifier->data, sizeof(setclientid->sc_verifier->data));
1203 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
1205 WRITE32(setclientid->sc_prog);
1206 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1207 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
1209 WRITE32(setclientid->sc_cb_ident);
1214 static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_client *client_state)
1218 RESERVE_SPACE(12 + sizeof(client_state->cl_confirm.data));
1219 WRITE32(OP_SETCLIENTID_CONFIRM);
1220 WRITE64(client_state->cl_clientid);
1221 WRITEMEM(client_state->cl_confirm.data, sizeof(client_state->cl_confirm.data));
1226 static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args)
1233 encode_stateid(xdr, args->context);
1236 WRITE64(args->offset);
1237 WRITE32(args->stable);
1238 WRITE32(args->count);
1240 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
1245 static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid)
1251 WRITE32(OP_DELEGRETURN);
1252 WRITEMEM(stateid->data, sizeof(stateid->data));
1257 * END OF "GENERIC" ENCODE ROUTINES.
1261 * Encode an ACCESS request
1263 static int nfs4_xdr_enc_access(struct rpc_rqst *req, uint32_t *p, const struct nfs4_accessargs *args)
1265 struct xdr_stream xdr;
1266 struct compound_hdr hdr = {
1271 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1272 encode_compound_hdr(&xdr, &hdr);
1273 if ((status = encode_putfh(&xdr, args->fh)) == 0)
1274 status = encode_access(&xdr, args->access);
1279 * Encode LOOKUP request
1281 static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_arg *args)
1283 struct xdr_stream xdr;
1284 struct compound_hdr hdr = {
1289 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1290 encode_compound_hdr(&xdr, &hdr);
1291 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1293 if ((status = encode_lookup(&xdr, args->name)) != 0)
1295 if ((status = encode_getfh(&xdr)) != 0)
1297 status = encode_getfattr(&xdr, args->bitmask);
1303 * Encode LOOKUP_ROOT request
1305 static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_root_arg *args)
1307 struct xdr_stream xdr;
1308 struct compound_hdr hdr = {
1313 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1314 encode_compound_hdr(&xdr, &hdr);
1315 if ((status = encode_putrootfh(&xdr)) != 0)
1317 if ((status = encode_getfh(&xdr)) == 0)
1318 status = encode_getfattr(&xdr, args->bitmask);
1324 * Encode REMOVE request
1326 static int nfs4_xdr_enc_remove(struct rpc_rqst *req, uint32_t *p, const struct nfs4_remove_arg *args)
1328 struct xdr_stream xdr;
1329 struct compound_hdr hdr = {
1334 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1335 encode_compound_hdr(&xdr, &hdr);
1336 if ((status = encode_putfh(&xdr, args->fh)) == 0)
1337 status = encode_remove(&xdr, args->name);
1342 * Encode RENAME request
1344 static int nfs4_xdr_enc_rename(struct rpc_rqst *req, uint32_t *p, const struct nfs4_rename_arg *args)
1346 struct xdr_stream xdr;
1347 struct compound_hdr hdr = {
1352 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1353 encode_compound_hdr(&xdr, &hdr);
1354 if ((status = encode_putfh(&xdr, args->old_dir)) != 0)
1356 if ((status = encode_savefh(&xdr)) != 0)
1358 if ((status = encode_putfh(&xdr, args->new_dir)) != 0)
1360 if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0)
1362 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
1364 if ((status = encode_restorefh(&xdr)) != 0)
1366 status = encode_getfattr(&xdr, args->bitmask);
1372 * Encode LINK request
1374 static int nfs4_xdr_enc_link(struct rpc_rqst *req, uint32_t *p, const struct nfs4_link_arg *args)
1376 struct xdr_stream xdr;
1377 struct compound_hdr hdr = {
1382 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1383 encode_compound_hdr(&xdr, &hdr);
1384 if ((status = encode_putfh(&xdr, args->fh)) != 0)
1386 if ((status = encode_savefh(&xdr)) != 0)
1388 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1390 if ((status = encode_link(&xdr, args->name)) != 0)
1392 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
1394 if ((status = encode_restorefh(&xdr)) != 0)
1396 status = encode_getfattr(&xdr, args->bitmask);
1402 * Encode CREATE request
1404 static int nfs4_xdr_enc_create(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args)
1406 struct xdr_stream xdr;
1407 struct compound_hdr hdr = {
1412 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1413 encode_compound_hdr(&xdr, &hdr);
1414 if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
1416 if ((status = encode_savefh(&xdr)) != 0)
1418 if ((status = encode_create(&xdr, args)) != 0)
1420 if ((status = encode_getfh(&xdr)) != 0)
1422 if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
1424 if ((status = encode_restorefh(&xdr)) != 0)
1426 status = encode_getfattr(&xdr, args->bitmask);
1432 * Encode SYMLINK request
1434 static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args)
1436 return nfs4_xdr_enc_create(req, p, args);
1440 * Encode GETATTR request
1442 static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, uint32_t *p, const struct nfs4_getattr_arg *args)
1444 struct xdr_stream xdr;
1445 struct compound_hdr hdr = {
1450 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1451 encode_compound_hdr(&xdr, &hdr);
1452 if ((status = encode_putfh(&xdr, args->fh)) == 0)
1453 status = encode_getfattr(&xdr, args->bitmask);
1458 * Encode a CLOSE request
1460 static int nfs4_xdr_enc_close(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args)
1462 struct xdr_stream xdr;
1463 struct compound_hdr hdr = {
1468 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1469 encode_compound_hdr(&xdr, &hdr);
1470 status = encode_putfh(&xdr, args->fh);
1473 status = encode_close(&xdr, args);
1476 status = encode_getfattr(&xdr, args->bitmask);
1482 * Encode an OPEN request
1484 static int nfs4_xdr_enc_open(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args)
1486 struct xdr_stream xdr;
1487 struct compound_hdr hdr = {
1492 status = nfs_wait_on_sequence(args->seqid, req->rq_task);
1495 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1496 encode_compound_hdr(&xdr, &hdr);
1497 status = encode_putfh(&xdr, args->fh);
1500 status = encode_savefh(&xdr);
1503 status = encode_open(&xdr, args);
1506 status = encode_getfh(&xdr);
1509 status = encode_getfattr(&xdr, args->bitmask);
1512 status = encode_restorefh(&xdr);
1515 status = encode_getfattr(&xdr, args->bitmask);
1521 * Encode an OPEN_CONFIRM request
1523 static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_open_confirmargs *args)
1525 struct xdr_stream xdr;
1526 struct compound_hdr hdr = {
1531 status = nfs_wait_on_sequence(args->seqid, req->rq_task);
1534 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1535 encode_compound_hdr(&xdr, &hdr);
1536 status = encode_putfh(&xdr, args->fh);
1539 status = encode_open_confirm(&xdr, args);
1545 * Encode an OPEN request with no attributes.
1547 static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args)
1549 struct xdr_stream xdr;
1550 struct compound_hdr hdr = {
1555 status = nfs_wait_on_sequence(args->seqid, req->rq_task);
1558 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1559 encode_compound_hdr(&xdr, &hdr);
1560 status = encode_putfh(&xdr, args->fh);
1563 status = encode_open(&xdr, args);
1569 * Encode an OPEN_DOWNGRADE request
1571 static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args)
1573 struct xdr_stream xdr;
1574 struct compound_hdr hdr = {
1579 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1580 encode_compound_hdr(&xdr, &hdr);
1581 status = encode_putfh(&xdr, args->fh);
1584 status = encode_open_downgrade(&xdr, args);
1587 status = encode_getfattr(&xdr, args->bitmask);
1593 * Encode a LOCK request
1595 static int nfs4_xdr_enc_lock(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args)
1597 struct xdr_stream xdr;
1598 struct compound_hdr hdr = {
1601 struct nfs_lock_opargs *opargs = args->u.lock;
1604 status = nfs_wait_on_sequence(opargs->lock_seqid, req->rq_task);
1607 /* Do we need to do an open_to_lock_owner? */
1608 if (opargs->lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED)
1609 opargs->new_lock_owner = 0;
1610 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1611 encode_compound_hdr(&xdr, &hdr);
1612 status = encode_putfh(&xdr, args->fh);
1615 status = encode_lock(&xdr, args);
1621 * Encode a LOCKT request
1623 static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args)
1625 struct xdr_stream xdr;
1626 struct compound_hdr hdr = {
1631 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1632 encode_compound_hdr(&xdr, &hdr);
1633 status = encode_putfh(&xdr, args->fh);
1636 status = encode_lockt(&xdr, args);
1642 * Encode a LOCKU request
1644 static int nfs4_xdr_enc_locku(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args)
1646 struct xdr_stream xdr;
1647 struct compound_hdr hdr = {
1652 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1653 encode_compound_hdr(&xdr, &hdr);
1654 status = encode_putfh(&xdr, args->fh);
1657 status = encode_locku(&xdr, args);
1663 * Encode a READLINK request
1665 static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readlink *args)
1667 struct xdr_stream xdr;
1668 struct compound_hdr hdr = {
1673 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1674 encode_compound_hdr(&xdr, &hdr);
1675 status = encode_putfh(&xdr, args->fh);
1678 status = encode_readlink(&xdr, args, req);
1684 * Encode a READDIR request
1686 static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readdir_arg *args)
1688 struct xdr_stream xdr;
1689 struct compound_hdr hdr = {
1694 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1695 encode_compound_hdr(&xdr, &hdr);
1696 status = encode_putfh(&xdr, args->fh);
1699 status = encode_readdir(&xdr, args, req);
1705 * Encode a READ request
1707 static int nfs4_xdr_enc_read(struct rpc_rqst *req, uint32_t *p, struct nfs_readargs *args)
1709 struct rpc_auth *auth = req->rq_task->tk_auth;
1710 struct xdr_stream xdr;
1711 struct compound_hdr hdr = {
1716 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1717 encode_compound_hdr(&xdr, &hdr);
1718 status = encode_putfh(&xdr, args->fh);
1721 status = encode_read(&xdr, args);
1725 /* set up reply kvec
1726 * toplevel status + taglen=0 + rescount + OP_PUTFH + status
1727 * + OP_READ + status + eof + datalen = 9
1729 replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2;
1730 xdr_inline_pages(&req->rq_rcv_buf, replen,
1731 args->pages, args->pgbase, args->count);
1737 * Encode an SETATTR request
1739 static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, uint32_t *p, struct nfs_setattrargs *args)
1742 struct xdr_stream xdr;
1743 struct compound_hdr hdr = {
1748 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1749 encode_compound_hdr(&xdr, &hdr);
1750 status = encode_putfh(&xdr, args->fh);
1753 status = encode_setattr(&xdr, args, args->server);
1756 status = encode_getfattr(&xdr, args->bitmask);
1762 * Encode a GETACL request
1765 nfs4_xdr_enc_getacl(struct rpc_rqst *req, uint32_t *p,
1766 struct nfs_getaclargs *args)
1768 struct xdr_stream xdr;
1769 struct rpc_auth *auth = req->rq_task->tk_auth;
1770 struct compound_hdr hdr = {
1775 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1776 encode_compound_hdr(&xdr, &hdr);
1777 status = encode_putfh(&xdr, args->fh);
1780 status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0);
1781 /* set up reply buffer: */
1782 replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2;
1783 xdr_inline_pages(&req->rq_rcv_buf, replen,
1784 args->acl_pages, args->acl_pgbase, args->acl_len);
1790 * Encode a WRITE request
1792 static int nfs4_xdr_enc_write(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args)
1794 struct xdr_stream xdr;
1795 struct compound_hdr hdr = {
1800 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1801 encode_compound_hdr(&xdr, &hdr);
1802 status = encode_putfh(&xdr, args->fh);
1805 status = encode_write(&xdr, args);
1813 static int nfs4_xdr_enc_commit(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args)
1815 struct xdr_stream xdr;
1816 struct compound_hdr hdr = {
1821 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1822 encode_compound_hdr(&xdr, &hdr);
1823 status = encode_putfh(&xdr, args->fh);
1826 status = encode_commit(&xdr, args);
1834 static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs4_fsinfo_arg *args)
1836 struct xdr_stream xdr;
1837 struct compound_hdr hdr = {
1842 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1843 encode_compound_hdr(&xdr, &hdr);
1844 status = encode_putfh(&xdr, args->fh);
1846 status = encode_fsinfo(&xdr, args->bitmask);
1851 * a PATHCONF request
1853 static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, uint32_t *p, const struct nfs4_pathconf_arg *args)
1855 struct xdr_stream xdr;
1856 struct compound_hdr hdr = {
1861 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1862 encode_compound_hdr(&xdr, &hdr);
1863 status = encode_putfh(&xdr, args->fh);
1865 status = encode_getattr_one(&xdr,
1866 args->bitmask[0] & nfs4_pathconf_bitmap[0]);
1873 static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, uint32_t *p, const struct nfs4_statfs_arg *args)
1875 struct xdr_stream xdr;
1876 struct compound_hdr hdr = {
1881 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1882 encode_compound_hdr(&xdr, &hdr);
1883 status = encode_putfh(&xdr, args->fh);
1885 status = encode_getattr_two(&xdr,
1886 args->bitmask[0] & nfs4_statfs_bitmap[0],
1887 args->bitmask[1] & nfs4_statfs_bitmap[1]);
1892 * GETATTR_BITMAP request
1894 static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, uint32_t *p, const struct nfs_fh *fhandle)
1896 struct xdr_stream xdr;
1897 struct compound_hdr hdr = {
1902 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1903 encode_compound_hdr(&xdr, &hdr);
1904 status = encode_putfh(&xdr, fhandle);
1906 status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
1907 FATTR4_WORD0_LINK_SUPPORT|
1908 FATTR4_WORD0_SYMLINK_SUPPORT|
1909 FATTR4_WORD0_ACLSUPPORT);
1916 static int nfs4_xdr_enc_renew(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp)
1918 struct xdr_stream xdr;
1919 struct compound_hdr hdr = {
1923 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1924 encode_compound_hdr(&xdr, &hdr);
1925 return encode_renew(&xdr, clp);
1929 * a SETCLIENTID request
1931 static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, uint32_t *p, struct nfs4_setclientid *sc)
1933 struct xdr_stream xdr;
1934 struct compound_hdr hdr = {
1938 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1939 encode_compound_hdr(&xdr, &hdr);
1940 return encode_setclientid(&xdr, sc);
1944 * a SETCLIENTID_CONFIRM request
1946 static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp)
1948 struct xdr_stream xdr;
1949 struct compound_hdr hdr = {
1952 const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
1955 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1956 encode_compound_hdr(&xdr, &hdr);
1957 status = encode_setclientid_confirm(&xdr, clp);
1959 status = encode_putrootfh(&xdr);
1961 status = encode_fsinfo(&xdr, lease_bitmap);
1966 * DELEGRETURN request
1968 static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, uint32_t *p, const struct nfs4_delegreturnargs *args)
1970 struct xdr_stream xdr;
1971 struct compound_hdr hdr = {
1976 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1977 encode_compound_hdr(&xdr, &hdr);
1978 if ((status = encode_putfh(&xdr, args->fhandle)) == 0)
1979 status = encode_delegreturn(&xdr, args->stateid);
1984 * START OF "GENERIC" DECODE ROUTINES.
1985 * These may look a little ugly since they are imported from a "generic"
1986 * set of XDR encode/decode routines which are intended to be shared by
1987 * all of our NFSv4 implementations (OpenBSD, MacOS X...).
1989 * If the pain of reading these is too great, it should be a straightforward
1990 * task to translate them into Linux-specific versions which are more
1991 * consistent with the style used in NFSv2/v3...
1993 #define READ32(x) (x) = ntohl(*p++)
1994 #define READ64(x) do { \
1995 (x) = (u64)ntohl(*p++) << 32; \
1996 (x) |= ntohl(*p++); \
1998 #define READTIME(x) do { \
2000 (x.tv_sec) = ntohl(*p++); \
2001 (x.tv_nsec) = ntohl(*p++); \
2003 #define COPYMEM(x,nbytes) do { \
2004 memcpy((x), p, nbytes); \
2005 p += XDR_QUADLEN(nbytes); \
2008 #define READ_BUF(nbytes) do { \
2009 p = xdr_inline_decode(xdr, nbytes); \
2011 printk(KERN_WARNING "%s: reply buffer overflowed in line %d.", \
2012 __FUNCTION__, __LINE__); \
2017 static int decode_opaque_inline(struct xdr_stream *xdr, uint32_t *len, char **string)
2024 *string = (char *)p;
2028 static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
2033 READ32(hdr->status);
2034 READ32(hdr->taglen);
2036 READ_BUF(hdr->taglen + 4);
2037 hdr->tag = (char *)p;
2038 p += XDR_QUADLEN(hdr->taglen);
2043 static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
2051 if (opnum != expected) {
2053 "nfs4_decode_op_hdr: Server returned operation"
2054 " %d but we issued a request for %d\n",
2059 if (nfserr != NFS_OK)
2060 return -nfs_stat_to_errno(nfserr);
2065 static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs4_client *clp)
2072 return decode_opaque_inline(xdr, &strlen, &str);
2075 static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
2082 bitmap[0] = bitmap[1] = 0;
2083 READ_BUF((bmlen << 2));
2092 static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, uint32_t **savep)
2102 static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
2104 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
2105 decode_attr_bitmap(xdr, bitmask);
2106 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
2108 bitmask[0] = bitmask[1] = 0;
2109 dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]);
2113 static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
2118 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
2120 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
2123 if (*type < NF4REG || *type > NF4NAMEDATTR) {
2124 dprintk("%s: bad type %d\n", __FUNCTION__, *type);
2127 bitmap[0] &= ~FATTR4_WORD0_TYPE;
2129 dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type);
2133 static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
2138 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
2140 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
2143 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
2145 dprintk("%s: change attribute=%Lu\n", __FUNCTION__,
2146 (unsigned long long)*change);
2150 static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
2155 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
2157 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
2160 bitmap[0] &= ~FATTR4_WORD0_SIZE;
2162 dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size);
2166 static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2171 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
2173 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
2176 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
2178 dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true");
2182 static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2187 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
2189 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
2192 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
2194 dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true");
2198 static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fsid *fsid)
2204 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
2206 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
2208 READ64(fsid->major);
2209 READ64(fsid->minor);
2210 bitmap[0] &= ~FATTR4_WORD0_FSID;
2212 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__,
2213 (unsigned long long)fsid->major,
2214 (unsigned long long)fsid->minor);
2218 static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2223 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
2225 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
2228 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
2230 dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res);
2234 static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2238 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
2239 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
2241 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
2244 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
2246 dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res);
2250 static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
2255 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
2257 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
2260 bitmap[0] &= ~FATTR4_WORD0_FILEID;
2262 dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid);
2266 static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2272 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
2274 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
2277 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
2279 dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2283 static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2289 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
2291 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
2294 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
2296 dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2300 static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2306 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
2308 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
2311 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
2313 dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2317 static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2323 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
2325 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
2328 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
2330 dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2334 static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
2340 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
2342 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
2345 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
2347 dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink);
2351 static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
2357 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
2359 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
2362 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
2364 dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname);
2368 static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2374 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
2376 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
2380 if (maxread > 0x7FFFFFFF)
2381 maxread = 0x7FFFFFFF;
2382 *res = (uint32_t)maxread;
2383 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
2385 dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res);
2389 static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2395 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
2397 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
2401 if (maxwrite > 0x7FFFFFFF)
2402 maxwrite = 0x7FFFFFFF;
2403 *res = (uint32_t)maxwrite;
2404 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
2406 dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res);
2410 static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode)
2415 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
2417 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
2421 bitmap[1] &= ~FATTR4_WORD1_MODE;
2423 dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode);
2427 static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
2432 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
2434 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
2437 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
2439 dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink);
2443 static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *uid)
2448 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
2450 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
2454 if (len < XDR_MAX_NETOBJ) {
2455 if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0)
2456 dprintk("%s: nfs_map_name_to_uid failed!\n",
2459 printk(KERN_WARNING "%s: name too long (%u)!\n",
2461 bitmap[1] &= ~FATTR4_WORD1_OWNER;
2463 dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid);
2467 static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *gid)
2472 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
2474 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
2478 if (len < XDR_MAX_NETOBJ) {
2479 if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0)
2480 dprintk("%s: nfs_map_group_to_gid failed!\n",
2483 printk(KERN_WARNING "%s: name too long (%u)!\n",
2485 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
2487 dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid);
2491 static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
2493 uint32_t major = 0, minor = 0, *p;
2496 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
2498 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
2504 tmp = MKDEV(major, minor);
2505 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
2507 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
2509 dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor);
2513 static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2519 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
2521 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
2524 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
2526 dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2530 static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2536 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
2538 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
2541 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
2543 dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2547 static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2553 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
2555 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
2558 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
2560 dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res);
2564 static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
2569 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
2571 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
2574 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
2576 dprintk("%s: space used=%Lu\n", __FUNCTION__,
2577 (unsigned long long)*used);
2581 static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
2590 time->tv_sec = (time_t)sec;
2591 time->tv_nsec = (long)nsec;
2595 static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2601 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
2603 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
2604 status = decode_attr_time(xdr, time);
2605 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
2607 dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2611 static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2617 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
2619 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
2620 status = decode_attr_time(xdr, time);
2621 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
2623 dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2627 static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
2633 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
2635 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
2636 status = decode_attr_time(xdr, time);
2637 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
2639 dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec);
2643 static int verify_attr_len(struct xdr_stream *xdr, uint32_t *savep, uint32_t attrlen)
2645 unsigned int attrwords = XDR_QUADLEN(attrlen);
2646 unsigned int nwords = xdr->p - savep;
2648 if (unlikely(attrwords != nwords)) {
2649 printk(KERN_WARNING "%s: server returned incorrect attribute length: %u %c %u\n",
2652 (attrwords < nwords) ? '<' : '>',
2659 static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2664 READ32(cinfo->atomic);
2665 READ64(cinfo->before);
2666 READ64(cinfo->after);
2670 static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
2676 status = decode_op_hdr(xdr, OP_ACCESS);
2682 access->supported = supp;
2683 access->access = acc;
2687 static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
2692 status = decode_op_hdr(xdr, OP_CLOSE);
2695 READ_BUF(sizeof(res->stateid.data));
2696 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
2700 static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
2705 status = decode_op_hdr(xdr, OP_COMMIT);
2709 COPYMEM(res->verf->verifier, 8);
2713 static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2719 status = decode_op_hdr(xdr, OP_CREATE);
2722 if ((status = decode_change_info(xdr, cinfo)))
2726 READ_BUF(bmlen << 2);
2730 static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
2737 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2739 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2741 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2743 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
2745 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
2747 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
2749 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
2751 status = verify_attr_len(xdr, savep, attrlen);
2754 printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
2758 static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
2765 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2767 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2769 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2772 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
2774 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
2776 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
2778 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
2780 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
2782 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
2785 status = verify_attr_len(xdr, savep, attrlen);
2788 printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
2792 static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
2799 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2801 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2803 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2806 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
2808 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
2811 status = verify_attr_len(xdr, savep, attrlen);
2814 printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
2818 static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server)
2824 int status, fmode = 0;
2826 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2828 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2831 fattr->bitmap[0] = bitmap[0];
2832 fattr->bitmap[1] = bitmap[1];
2834 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2838 if ((status = decode_attr_type(xdr, bitmap, &type)) != 0)
2840 fattr->type = nfs_type2fmt[type].nfs2type;
2841 fmode = nfs_type2fmt[type].mode;
2843 if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0)
2845 if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0)
2847 if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid_u.nfs4)) != 0)
2849 if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0)
2851 if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0)
2853 fattr->mode |= fmode;
2854 if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0)
2856 if ((status = decode_attr_owner(xdr, bitmap, server->nfs4_state, &fattr->uid)) != 0)
2858 if ((status = decode_attr_group(xdr, bitmap, server->nfs4_state, &fattr->gid)) != 0)
2860 if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0)
2862 if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0)
2864 if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0)
2866 if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0)
2868 if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0)
2870 if ((status = verify_attr_len(xdr, savep, attrlen)) == 0)
2871 fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4;
2874 printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
2879 static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
2882 uint32_t attrlen, bitmap[2];
2885 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
2887 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
2889 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
2892 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
2894 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
2896 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
2898 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
2900 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
2901 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
2903 fsinfo->wtpref = fsinfo->wtmax;
2905 status = verify_attr_len(xdr, savep, attrlen);
2908 printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
2912 static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
2918 status = decode_op_hdr(xdr, OP_GETFH);
2921 /* Zero handle first to allow comparisons */
2922 memset(fh, 0, sizeof(*fh));
2926 if (len > NFS4_FHSIZE)
2930 COPYMEM(fh->data, len);
2934 static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
2938 status = decode_op_hdr(xdr, OP_LINK);
2941 return decode_change_info(xdr, cinfo);
2945 * We create the owner, so we know a proper owner.id length is 4.
2947 static int decode_lock_denied (struct xdr_stream *xdr, struct nfs_lock_denied *denied)
2953 READ64(denied->offset);
2954 READ64(denied->length);
2955 READ32(denied->type);
2956 READ64(denied->owner.clientid);
2960 READ32(denied->owner.id);
2961 return -NFS4ERR_DENIED;
2964 static int decode_lock(struct xdr_stream *xdr, struct nfs_lockres *res)
2969 status = decode_op_hdr(xdr, OP_LOCK);
2971 READ_BUF(sizeof(res->u.stateid.data));
2972 COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data));
2973 } else if (status == -NFS4ERR_DENIED)
2974 return decode_lock_denied(xdr, &res->u.denied);
2978 static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockres *res)
2981 status = decode_op_hdr(xdr, OP_LOCKT);
2982 if (status == -NFS4ERR_DENIED)
2983 return decode_lock_denied(xdr, &res->u.denied);
2987 static int decode_locku(struct xdr_stream *xdr, struct nfs_lockres *res)
2992 status = decode_op_hdr(xdr, OP_LOCKU);
2994 READ_BUF(sizeof(res->u.stateid.data));
2995 COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data));
3000 static int decode_lookup(struct xdr_stream *xdr)
3002 return decode_op_hdr(xdr, OP_LOOKUP);
3005 /* This is too sick! */
3006 static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
3009 uint32_t limit_type, nblocks, blocksize;
3013 switch (limit_type) {
3020 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
3025 static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
3028 uint32_t delegation_type;
3031 READ32(delegation_type);
3032 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
3033 res->delegation_type = 0;
3037 COPYMEM(res->delegation.data, sizeof(res->delegation.data));
3038 READ32(res->do_recall);
3039 switch (delegation_type) {
3040 case NFS4_OPEN_DELEGATE_READ:
3041 res->delegation_type = FMODE_READ;
3043 case NFS4_OPEN_DELEGATE_WRITE:
3044 res->delegation_type = FMODE_WRITE|FMODE_READ;
3045 if (decode_space_limit(xdr, &res->maxsize) < 0)
3048 return decode_ace(xdr, NULL, res->server->nfs4_state);
3051 static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
3057 status = decode_op_hdr(xdr, OP_OPEN);
3060 READ_BUF(sizeof(res->stateid.data));
3061 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3063 decode_change_info(xdr, &res->cinfo);
3066 READ32(res->rflags);
3071 READ_BUF(bmlen << 2);
3073 return decode_delegation(xdr, res);
3075 printk(KERN_NOTICE "%s: xdr error!\n", __FUNCTION__);
3079 static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
3084 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
3087 READ_BUF(sizeof(res->stateid.data));
3088 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3092 static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
3097 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
3100 READ_BUF(sizeof(res->stateid.data));
3101 COPYMEM(res->stateid.data, sizeof(res->stateid.data));
3105 static int decode_putfh(struct xdr_stream *xdr)
3107 return decode_op_hdr(xdr, OP_PUTFH);
3110 static int decode_putrootfh(struct xdr_stream *xdr)
3112 return decode_op_hdr(xdr, OP_PUTROOTFH);
3115 static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res)
3117 struct kvec *iov = req->rq_rcv_buf.head;
3119 uint32_t count, eof, recvd, hdrlen;
3122 status = decode_op_hdr(xdr, OP_READ);
3128 hdrlen = (u8 *) p - (u8 *) iov->iov_base;
3129 recvd = req->rq_rcv_buf.len - hdrlen;
3130 if (count > recvd) {
3131 printk(KERN_WARNING "NFS: server cheating in read reply: "
3132 "count %u > recvd %u\n", count, recvd);
3136 xdr_read_pages(xdr, count);
3142 static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
3144 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
3145 struct page *page = *rcvbuf->pages;
3146 struct kvec *iov = rcvbuf->head;
3147 unsigned int nr, pglen = rcvbuf->page_len;
3148 uint32_t *end, *entry, *p, *kaddr;
3149 uint32_t len, attrlen;
3150 int hdrlen, recvd, status;
3152 status = decode_op_hdr(xdr, OP_READDIR);
3156 COPYMEM(readdir->verifier.data, 8);
3157 dprintk("%s: verifier = 0x%x%x\n",
3159 ((u32 *)readdir->verifier.data)[0],
3160 ((u32 *)readdir->verifier.data)[1]);
3163 hdrlen = (char *) p - (char *) iov->iov_base;
3164 recvd = rcvbuf->len - hdrlen;
3167 xdr_read_pages(xdr, pglen);
3169 BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE);
3170 kaddr = p = (uint32_t *) kmap_atomic(page, KM_USER0);
3171 end = (uint32_t *) ((char *)p + pglen + readdir->pgbase);
3173 for (nr = 0; *p++; nr++) {
3176 dprintk("cookie = %Lu, ", *((unsigned long long *)p));
3177 p += 2; /* cookie */
3178 len = ntohl(*p++); /* filename length */
3179 if (len > NFS4_MAXNAMLEN) {
3180 printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len);
3183 dprintk("filename = %*s\n", len, (char *)p);
3184 p += XDR_QUADLEN(len);
3187 len = ntohl(*p++); /* bitmap length */
3191 attrlen = XDR_QUADLEN(ntohl(*p++));
3192 p += attrlen; /* attributes */
3197 if (!nr && (entry[0] != 0 || entry[1] == 0))
3200 kunmap_atomic(kaddr, KM_USER0);
3203 dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr);
3204 entry[0] = entry[1] = 0;
3205 /* truncate listing ? */
3207 printk(KERN_NOTICE "NFS: readdir reply truncated!\n");
3212 kunmap_atomic(kaddr, KM_USER0);
3213 return -errno_NFSERR_IO;
3216 static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
3218 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
3219 struct kvec *iov = rcvbuf->head;
3220 int hdrlen, len, recvd;
3225 status = decode_op_hdr(xdr, OP_READLINK);
3229 /* Convert length of symlink */
3232 if (len >= rcvbuf->page_len || len <= 0) {
3233 dprintk(KERN_WARNING "nfs: server returned giant symlink!\n");
3234 return -ENAMETOOLONG;
3236 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
3237 recvd = req->rq_rcv_buf.len - hdrlen;
3239 printk(KERN_WARNING "NFS: server cheating in readlink reply: "
3240 "count %u > recvd %u\n", len, recvd);
3243 xdr_read_pages(xdr, len);
3245 * The XDR encode routine has set things up so that
3246 * the link text will be copied directly into the
3247 * buffer. We just have to do overflow-checking,
3248 * and and null-terminate the text (the VFS expects
3249 * null-termination).
3251 kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0);
3252 kaddr[len+rcvbuf->page_base] = '\0';
3253 kunmap_atomic(kaddr, KM_USER0);
3257 static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3261 status = decode_op_hdr(xdr, OP_REMOVE);
3264 status = decode_change_info(xdr, cinfo);
3269 static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
3270 struct nfs4_change_info *new_cinfo)
3274 status = decode_op_hdr(xdr, OP_RENAME);
3277 if ((status = decode_change_info(xdr, old_cinfo)))
3279 status = decode_change_info(xdr, new_cinfo);
3284 static int decode_renew(struct xdr_stream *xdr)
3286 return decode_op_hdr(xdr, OP_RENEW);
3290 decode_restorefh(struct xdr_stream *xdr)
3292 return decode_op_hdr(xdr, OP_RESTOREFH);
3295 static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
3301 struct kvec *iov = req->rq_rcv_buf.head;
3305 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3307 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3309 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3312 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
3314 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
3317 /* We ignore &savep and don't do consistency checks on
3318 * the attr length. Let userspace figure it out.... */
3319 hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base;
3320 recvd = req->rq_rcv_buf.len - hdrlen;
3321 if (attrlen > recvd) {
3322 printk(KERN_WARNING "NFS: server cheating in getattr"
3323 " acl reply: attrlen %u > recvd %u\n",
3327 if (attrlen <= *acl_len)
3328 xdr_read_pages(xdr, attrlen);
3331 status = -EOPNOTSUPP;
3338 decode_savefh(struct xdr_stream *xdr)
3340 return decode_op_hdr(xdr, OP_SAVEFH);
3343 static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res)
3350 status = decode_op_hdr(xdr, OP_SETATTR);
3355 READ_BUF(bmlen << 2);
3359 static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_client *clp)
3367 if (opnum != OP_SETCLIENTID) {
3369 "nfs4_decode_setclientid: Server returned operation"
3374 if (nfserr == NFS_OK) {
3375 READ_BUF(8 + sizeof(clp->cl_confirm.data));
3376 READ64(clp->cl_clientid);
3377 COPYMEM(clp->cl_confirm.data, sizeof(clp->cl_confirm.data));
3378 } else if (nfserr == NFSERR_CLID_INUSE) {
3381 /* skip netid string */
3386 /* skip uaddr string */
3390 return -NFSERR_CLID_INUSE;
3392 return -nfs_stat_to_errno(nfserr);
3397 static int decode_setclientid_confirm(struct xdr_stream *xdr)
3399 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
3402 static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
3407 status = decode_op_hdr(xdr, OP_WRITE);
3413 READ32(res->verf->committed);
3414 COPYMEM(res->verf->verifier, 8);
3418 static int decode_delegreturn(struct xdr_stream *xdr)
3420 return decode_op_hdr(xdr, OP_DELEGRETURN);
3424 * Decode OPEN_DOWNGRADE response
3426 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res)
3428 struct xdr_stream xdr;
3429 struct compound_hdr hdr;
3432 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3433 status = decode_compound_hdr(&xdr, &hdr);
3436 status = decode_putfh(&xdr);
3439 status = decode_open_downgrade(&xdr, res);
3442 decode_getfattr(&xdr, res->fattr, res->server);
3448 * END OF "GENERIC" DECODE ROUTINES.
3452 * Decode ACCESS response
3454 static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_accessres *res)
3456 struct xdr_stream xdr;
3457 struct compound_hdr hdr;
3460 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3461 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3463 if ((status = decode_putfh(&xdr)) == 0)
3464 status = decode_access(&xdr, res);
3470 * Decode LOOKUP response
3472 static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res)
3474 struct xdr_stream xdr;
3475 struct compound_hdr hdr;
3478 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3479 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3481 if ((status = decode_putfh(&xdr)) != 0)
3483 if ((status = decode_lookup(&xdr)) != 0)
3485 if ((status = decode_getfh(&xdr, res->fh)) != 0)
3487 status = decode_getfattr(&xdr, res->fattr, res->server);
3493 * Decode LOOKUP_ROOT response
3495 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res)
3497 struct xdr_stream xdr;
3498 struct compound_hdr hdr;
3501 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3502 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3504 if ((status = decode_putrootfh(&xdr)) != 0)
3506 if ((status = decode_getfh(&xdr, res->fh)) == 0)
3507 status = decode_getfattr(&xdr, res->fattr, res->server);
3513 * Decode REMOVE response
3515 static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_change_info *cinfo)
3517 struct xdr_stream xdr;
3518 struct compound_hdr hdr;
3521 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3522 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3524 if ((status = decode_putfh(&xdr)) == 0)
3525 status = decode_remove(&xdr, cinfo);
3531 * Decode RENAME response
3533 static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_rename_res *res)
3535 struct xdr_stream xdr;
3536 struct compound_hdr hdr;
3539 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3540 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3542 if ((status = decode_putfh(&xdr)) != 0)
3544 if ((status = decode_savefh(&xdr)) != 0)
3546 if ((status = decode_putfh(&xdr)) != 0)
3548 if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0)
3550 /* Current FH is target directory */
3551 if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0)
3553 if ((status = decode_restorefh(&xdr)) != 0)
3555 decode_getfattr(&xdr, res->old_fattr, res->server);
3561 * Decode LINK response
3563 static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_link_res *res)
3565 struct xdr_stream xdr;
3566 struct compound_hdr hdr;
3569 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3570 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3572 if ((status = decode_putfh(&xdr)) != 0)
3574 if ((status = decode_savefh(&xdr)) != 0)
3576 if ((status = decode_putfh(&xdr)) != 0)
3578 if ((status = decode_link(&xdr, &res->cinfo)) != 0)
3581 * Note order: OP_LINK leaves the directory as the current
3584 if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0)
3586 if ((status = decode_restorefh(&xdr)) != 0)
3588 decode_getfattr(&xdr, res->fattr, res->server);
3594 * Decode CREATE response
3596 static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res)
3598 struct xdr_stream xdr;
3599 struct compound_hdr hdr;
3602 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3603 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
3605 if ((status = decode_putfh(&xdr)) != 0)
3607 if ((status = decode_savefh(&xdr)) != 0)
3609 if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0)
3611 if ((status = decode_getfh(&xdr, res->fh)) != 0)
3613 if (decode_getfattr(&xdr, res->fattr, res->server) != 0)
3615 if ((status = decode_restorefh(&xdr)) != 0)
3617 decode_getfattr(&xdr, res->dir_fattr, res->server);
3623 * Decode SYMLINK response
3625 static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res)
3627 return nfs4_xdr_dec_create(rqstp, p, res);
3631 * Decode GETATTR response
3633 static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_getattr_res *res)
3635 struct xdr_stream xdr;
3636 struct compound_hdr hdr;
3639 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3640 status = decode_compound_hdr(&xdr, &hdr);
3643 status = decode_putfh(&xdr);
3646 status = decode_getfattr(&xdr, res->fattr, res->server);
3653 * Encode an SETACL request
3656 nfs4_xdr_enc_setacl(struct rpc_rqst *req, uint32_t *p, struct nfs_setaclargs *args)
3658 struct xdr_stream xdr;
3659 struct compound_hdr hdr = {
3664 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
3665 encode_compound_hdr(&xdr, &hdr);
3666 status = encode_putfh(&xdr, args->fh);
3669 status = encode_setacl(&xdr, args);
3674 * Decode SETACL response
3677 nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, uint32_t *p, void *res)
3679 struct xdr_stream xdr;
3680 struct compound_hdr hdr;
3683 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3684 status = decode_compound_hdr(&xdr, &hdr);
3687 status = decode_putfh(&xdr);
3690 status = decode_setattr(&xdr, res);
3696 * Decode GETACL response
3699 nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, uint32_t *p, size_t *acl_len)
3701 struct xdr_stream xdr;
3702 struct compound_hdr hdr;
3705 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3706 status = decode_compound_hdr(&xdr, &hdr);
3709 status = decode_putfh(&xdr);
3712 status = decode_getacl(&xdr, rqstp, acl_len);
3719 * Decode CLOSE response
3721 static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res)
3723 struct xdr_stream xdr;
3724 struct compound_hdr hdr;
3727 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3728 status = decode_compound_hdr(&xdr, &hdr);
3731 status = decode_putfh(&xdr);
3734 status = decode_close(&xdr, res);
3738 * Note: Server may do delete on close for this file
3739 * in which case the getattr call will fail with
3740 * an ESTALE error. Shouldn't be a problem,
3741 * though, since fattr->valid will remain unset.
3743 decode_getfattr(&xdr, res->fattr, res->server);
3749 * Decode OPEN response
3751 static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res)
3753 struct xdr_stream xdr;
3754 struct compound_hdr hdr;
3757 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3758 status = decode_compound_hdr(&xdr, &hdr);
3761 status = decode_putfh(&xdr);
3764 status = decode_savefh(&xdr);
3767 status = decode_open(&xdr, res);
3770 status = decode_getfh(&xdr, &res->fh);
3773 if (decode_getfattr(&xdr, res->f_attr, res->server) != 0)
3775 if ((status = decode_restorefh(&xdr)) != 0)
3777 decode_getfattr(&xdr, res->dir_attr, res->server);
3783 * Decode OPEN_CONFIRM response
3785 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_open_confirmres *res)
3787 struct xdr_stream xdr;
3788 struct compound_hdr hdr;
3791 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3792 status = decode_compound_hdr(&xdr, &hdr);
3795 status = decode_putfh(&xdr);
3798 status = decode_open_confirm(&xdr, res);
3804 * Decode OPEN response
3806 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res)
3808 struct xdr_stream xdr;
3809 struct compound_hdr hdr;
3812 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3813 status = decode_compound_hdr(&xdr, &hdr);
3816 status = decode_putfh(&xdr);
3819 status = decode_open(&xdr, res);
3825 * Decode SETATTR response
3827 static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_setattrres *res)
3829 struct xdr_stream xdr;
3830 struct compound_hdr hdr;
3833 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3834 status = decode_compound_hdr(&xdr, &hdr);
3837 status = decode_putfh(&xdr);
3840 status = decode_setattr(&xdr, res);
3843 status = decode_getfattr(&xdr, res->fattr, res->server);
3844 if (status == NFS4ERR_DELAY)
3851 * Decode LOCK response
3853 static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res)
3855 struct xdr_stream xdr;
3856 struct compound_hdr hdr;
3859 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3860 status = decode_compound_hdr(&xdr, &hdr);
3863 status = decode_putfh(&xdr);
3866 status = decode_lock(&xdr, res);
3872 * Decode LOCKT response
3874 static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res)
3876 struct xdr_stream xdr;
3877 struct compound_hdr hdr;
3880 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3881 status = decode_compound_hdr(&xdr, &hdr);
3884 status = decode_putfh(&xdr);
3887 status = decode_lockt(&xdr, res);
3893 * Decode LOCKU response
3895 static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res)
3897 struct xdr_stream xdr;
3898 struct compound_hdr hdr;
3901 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3902 status = decode_compound_hdr(&xdr, &hdr);
3905 status = decode_putfh(&xdr);
3908 status = decode_locku(&xdr, res);
3914 * Decode READLINK response
3916 static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, uint32_t *p, void *res)
3918 struct xdr_stream xdr;
3919 struct compound_hdr hdr;
3922 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3923 status = decode_compound_hdr(&xdr, &hdr);
3926 status = decode_putfh(&xdr);
3929 status = decode_readlink(&xdr, rqstp);
3935 * Decode READDIR response
3937 static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_readdir_res *res)
3939 struct xdr_stream xdr;
3940 struct compound_hdr hdr;
3943 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3944 status = decode_compound_hdr(&xdr, &hdr);
3947 status = decode_putfh(&xdr);
3950 status = decode_readdir(&xdr, rqstp, res);
3956 * Decode Read response
3958 static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_readres *res)
3960 struct xdr_stream xdr;
3961 struct compound_hdr hdr;
3964 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3965 status = decode_compound_hdr(&xdr, &hdr);
3968 status = decode_putfh(&xdr);
3971 status = decode_read(&xdr, rqstp, res);
3973 status = res->count;
3979 * Decode WRITE response
3981 static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res)
3983 struct xdr_stream xdr;
3984 struct compound_hdr hdr;
3987 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
3988 status = decode_compound_hdr(&xdr, &hdr);
3991 status = decode_putfh(&xdr);
3994 status = decode_write(&xdr, res);
3996 status = res->count;
4002 * Decode COMMIT response
4004 static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res)
4006 struct xdr_stream xdr;
4007 struct compound_hdr hdr;
4010 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4011 status = decode_compound_hdr(&xdr, &hdr);
4014 status = decode_putfh(&xdr);
4017 status = decode_commit(&xdr, res);
4025 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo)
4027 struct xdr_stream xdr;
4028 struct compound_hdr hdr;
4031 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4032 status = decode_compound_hdr(&xdr, &hdr);
4034 status = decode_putfh(&xdr);
4036 status = decode_fsinfo(&xdr, fsinfo);
4038 status = -nfs_stat_to_errno(hdr.status);
4045 static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, uint32_t *p, struct nfs_pathconf *pathconf)
4047 struct xdr_stream xdr;
4048 struct compound_hdr hdr;
4051 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4052 status = decode_compound_hdr(&xdr, &hdr);
4054 status = decode_putfh(&xdr);
4056 status = decode_pathconf(&xdr, pathconf);
4063 static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, uint32_t *p, struct nfs_fsstat *fsstat)
4065 struct xdr_stream xdr;
4066 struct compound_hdr hdr;
4069 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4070 status = decode_compound_hdr(&xdr, &hdr);
4072 status = decode_putfh(&xdr);
4074 status = decode_statfs(&xdr, fsstat);
4079 * GETATTR_BITMAP request
4081 static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, uint32_t *p, struct nfs4_server_caps_res *res)
4083 struct xdr_stream xdr;
4084 struct compound_hdr hdr;
4087 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4088 if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
4090 if ((status = decode_putfh(&xdr)) != 0)
4092 status = decode_server_caps(&xdr, res);
4098 * Decode RENEW response
4100 static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, uint32_t *p, void *dummy)
4102 struct xdr_stream xdr;
4103 struct compound_hdr hdr;
4106 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4107 status = decode_compound_hdr(&xdr, &hdr);
4109 status = decode_renew(&xdr);
4114 * a SETCLIENTID request
4116 static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, uint32_t *p,
4117 struct nfs4_client *clp)
4119 struct xdr_stream xdr;
4120 struct compound_hdr hdr;
4123 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4124 status = decode_compound_hdr(&xdr, &hdr);
4126 status = decode_setclientid(&xdr, clp);
4128 status = -nfs_stat_to_errno(hdr.status);
4133 * a SETCLIENTID_CONFIRM request
4135 static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo)
4137 struct xdr_stream xdr;
4138 struct compound_hdr hdr;
4141 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
4142 status = decode_compound_hdr(&xdr, &hdr);
4144 status = decode_setclientid_confirm(&xdr);
4146 status = decode_putrootfh(&xdr);
4148 status = decode_fsinfo(&xdr, fsinfo);
4150 status = -nfs_stat_to_errno(hdr.status);
4155 * DELEGRETURN request
4157 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, void *dummy)
4159 struct xdr_stream xdr;
4160 struct compound_hdr hdr;
4163 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4164 status = decode_compound_hdr(&xdr, &hdr);
4166 status = decode_putfh(&xdr);
4168 status = decode_delegreturn(&xdr);
4173 uint32_t *nfs4_decode_dirent(uint32_t *p, struct nfs_entry *entry, int plus)
4175 uint32_t bitmap[2] = {0};
4180 return ERR_PTR(-EAGAIN);
4182 return ERR_PTR(-EBADCOOKIE);
4185 entry->prev_cookie = entry->cookie;
4186 p = xdr_decode_hyper(p, &entry->cookie);
4187 entry->len = ntohl(*p++);
4188 entry->name = (const char *) p;
4189 p += XDR_QUADLEN(entry->len);
4192 * In case the server doesn't return an inode number,
4193 * we fake one here. (We don't use inode number 0,
4194 * since glibc seems to choke on it...)
4198 len = ntohl(*p++); /* bitmap length */
4200 bitmap[0] = ntohl(*p++);
4202 bitmap[1] = ntohl(*p++);
4206 len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */
4208 if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) {
4209 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
4210 /* Ignore the return value of rdattr_error for now */
4214 if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID)
4215 xdr_decode_hyper(p, &entry->ino);
4216 else if (bitmap[0] == FATTR4_WORD0_FILEID)
4217 xdr_decode_hyper(p, &entry->ino);
4221 entry->eof = !p[0] && p[1];
4226 * We need to translate between nfs status return values and
4227 * the local errno values which may not be the same.
4234 { NFS4ERR_PERM, EPERM },
4235 { NFS4ERR_NOENT, ENOENT },
4236 { NFS4ERR_IO, errno_NFSERR_IO },
4237 { NFS4ERR_NXIO, ENXIO },
4238 { NFS4ERR_ACCESS, EACCES },
4239 { NFS4ERR_EXIST, EEXIST },
4240 { NFS4ERR_XDEV, EXDEV },
4241 { NFS4ERR_NOTDIR, ENOTDIR },
4242 { NFS4ERR_ISDIR, EISDIR },
4243 { NFS4ERR_INVAL, EINVAL },
4244 { NFS4ERR_FBIG, EFBIG },
4245 { NFS4ERR_NOSPC, ENOSPC },
4246 { NFS4ERR_ROFS, EROFS },
4247 { NFS4ERR_MLINK, EMLINK },
4248 { NFS4ERR_NAMETOOLONG, ENAMETOOLONG },
4249 { NFS4ERR_NOTEMPTY, ENOTEMPTY },
4250 { NFS4ERR_DQUOT, EDQUOT },
4251 { NFS4ERR_STALE, ESTALE },
4252 { NFS4ERR_BADHANDLE, EBADHANDLE },
4253 { NFS4ERR_BADOWNER, EINVAL },
4254 { NFS4ERR_BADNAME, EINVAL },
4255 { NFS4ERR_BAD_COOKIE, EBADCOOKIE },
4256 { NFS4ERR_NOTSUPP, ENOTSUPP },
4257 { NFS4ERR_TOOSMALL, ETOOSMALL },
4258 { NFS4ERR_SERVERFAULT, ESERVERFAULT },
4259 { NFS4ERR_BADTYPE, EBADTYPE },
4260 { NFS4ERR_LOCKED, EAGAIN },
4261 { NFS4ERR_RESOURCE, EREMOTEIO },
4262 { NFS4ERR_SYMLINK, ELOOP },
4263 { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP },
4264 { NFS4ERR_DEADLOCK, EDEADLK },
4265 { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs
4266 * to be handled by a
4273 * Convert an NFS error code to a local one.
4274 * This one is used jointly by NFSv2 and NFSv3.
4277 nfs_stat_to_errno(int stat)
4280 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
4281 if (nfs_errtbl[i].stat == stat)
4282 return nfs_errtbl[i].errno;
4284 if (stat <= 10000 || stat > 10100) {
4285 /* The server is looney tunes. */
4286 return ESERVERFAULT;
4288 /* If we cannot translate the error, the recovery routines should
4290 * Note: remaining NFSv4 error codes have values > 10000, so should
4291 * not conflict with native Linux error codes.
4297 # define MAX(a, b) (((a) > (b))? (a) : (b))
4300 #define PROC(proc, argtype, restype) \
4301 [NFSPROC4_CLNT_##proc] = { \
4302 .p_proc = NFSPROC4_COMPOUND, \
4303 .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \
4304 .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \
4305 .p_bufsiz = MAX(NFS4_##argtype##_sz,NFS4_##restype##_sz) << 2, \
4308 struct rpc_procinfo nfs4_procedures[] = {
4309 PROC(READ, enc_read, dec_read),
4310 PROC(WRITE, enc_write, dec_write),
4311 PROC(COMMIT, enc_commit, dec_commit),
4312 PROC(OPEN, enc_open, dec_open),
4313 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
4314 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
4315 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
4316 PROC(CLOSE, enc_close, dec_close),
4317 PROC(SETATTR, enc_setattr, dec_setattr),
4318 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
4319 PROC(RENEW, enc_renew, dec_renew),
4320 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
4321 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
4322 PROC(LOCK, enc_lock, dec_lock),
4323 PROC(LOCKT, enc_lockt, dec_lockt),
4324 PROC(LOCKU, enc_locku, dec_locku),
4325 PROC(ACCESS, enc_access, dec_access),
4326 PROC(GETATTR, enc_getattr, dec_getattr),
4327 PROC(LOOKUP, enc_lookup, dec_lookup),
4328 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
4329 PROC(REMOVE, enc_remove, dec_remove),
4330 PROC(RENAME, enc_rename, dec_rename),
4331 PROC(LINK, enc_link, dec_link),
4332 PROC(SYMLINK, enc_symlink, dec_symlink),
4333 PROC(CREATE, enc_create, dec_create),
4334 PROC(PATHCONF, enc_pathconf, dec_pathconf),
4335 PROC(STATFS, enc_statfs, dec_statfs),
4336 PROC(READLINK, enc_readlink, dec_readlink),
4337 PROC(READDIR, enc_readdir, dec_readdir),
4338 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
4339 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
4340 PROC(GETACL, enc_getacl, dec_getacl),
4341 PROC(SETACL, enc_setacl, dec_setacl),
4344 struct rpc_version nfs_version4 = {
4346 .nrprocs = sizeof(nfs4_procedures)/sizeof(nfs4_procedures[0]),
4347 .procs = nfs4_procedures