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_fsinfo_maxsz (op_encode_hdr_maxsz + 2)
99 #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11)
100 #define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
101 #define decode_renew_maxsz (op_decode_hdr_maxsz)
102 #define encode_setclientid_maxsz \
103 (op_encode_hdr_maxsz + \
104 4 /*server->ip_addr*/ + \
107 6 + (NFS4_VERIFIER_SIZE >> 2))
108 #define decode_setclientid_maxsz \
109 (op_decode_hdr_maxsz + \
111 1024) /* large value for CLID_INUSE */
112 #define encode_setclientid_confirm_maxsz \
113 (op_encode_hdr_maxsz + \
114 3 + (NFS4_VERIFIER_SIZE >> 2))
115 #define decode_setclientid_confirm_maxsz \
116 (op_decode_hdr_maxsz)
117 #define encode_lookup_maxsz (op_encode_hdr_maxsz + \
118 1 + ((3 + NFS4_FHSIZE) >> 2))
119 #define encode_remove_maxsz (op_encode_hdr_maxsz + \
121 #define encode_rename_maxsz (op_encode_hdr_maxsz + \
123 #define decode_rename_maxsz (op_decode_hdr_maxsz + 5 + 5)
124 #define encode_link_maxsz (op_encode_hdr_maxsz + \
126 #define decode_link_maxsz (op_decode_hdr_maxsz + 5)
127 #define encode_symlink_maxsz (op_encode_hdr_maxsz + \
128 1 + nfs4_name_maxsz + \
131 #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
132 #define encode_create_maxsz (op_encode_hdr_maxsz + \
133 2 + nfs4_name_maxsz + \
135 #define decode_create_maxsz (op_decode_hdr_maxsz + 8)
136 #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
137 #define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
138 #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
139 #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
140 #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
141 encode_putfh_maxsz + \
142 op_encode_hdr_maxsz + 7)
143 #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
144 decode_putfh_maxsz + \
145 op_decode_hdr_maxsz + 2)
146 #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
147 encode_putfh_maxsz + \
149 #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
150 decode_putfh_maxsz + \
152 #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
153 encode_putfh_maxsz + \
154 op_encode_hdr_maxsz + 9)
155 #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
156 decode_putfh_maxsz + \
157 op_decode_hdr_maxsz + 2)
158 #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
159 encode_putfh_maxsz + \
160 op_encode_hdr_maxsz + 8)
161 #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
162 decode_putfh_maxsz + \
163 op_decode_hdr_maxsz + 4)
164 #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
165 encode_putfh_maxsz + \
166 op_encode_hdr_maxsz + 3)
167 #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
168 decode_putfh_maxsz + \
169 op_decode_hdr_maxsz + 2)
170 #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
171 encode_putfh_maxsz + \
172 op_encode_hdr_maxsz + \
174 encode_getattr_maxsz + \
176 #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
177 decode_putfh_maxsz + \
178 op_decode_hdr_maxsz + 4 + 5 + 2 + 3 + \
179 decode_getattr_maxsz + \
181 #define NFS4_enc_open_confirm_sz \
182 (compound_encode_hdr_maxsz + \
183 encode_putfh_maxsz + \
184 op_encode_hdr_maxsz + 5)
185 #define NFS4_dec_open_confirm_sz (compound_decode_hdr_maxsz + \
186 decode_putfh_maxsz + \
187 op_decode_hdr_maxsz + 4)
188 #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
189 encode_putfh_maxsz + \
190 op_encode_hdr_maxsz + \
192 #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
193 decode_putfh_maxsz + \
194 op_decode_hdr_maxsz + \
196 #define NFS4_enc_open_downgrade_sz \
197 (compound_encode_hdr_maxsz + \
198 encode_putfh_maxsz + \
199 op_encode_hdr_maxsz + 7)
200 #define NFS4_dec_open_downgrade_sz \
201 (compound_decode_hdr_maxsz + \
202 decode_putfh_maxsz + \
203 op_decode_hdr_maxsz + 4)
204 #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
205 encode_putfh_maxsz + \
206 op_encode_hdr_maxsz + 5)
207 #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
208 decode_putfh_maxsz + \
209 op_decode_hdr_maxsz + 4)
210 #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
211 encode_putfh_maxsz + \
212 op_encode_hdr_maxsz + 4 + \
214 encode_getattr_maxsz)
215 #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
216 decode_putfh_maxsz + \
217 op_decode_hdr_maxsz + 3)
218 #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
219 encode_putfh_maxsz + \
221 #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
222 decode_putfh_maxsz + \
224 #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
226 #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
228 #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
229 encode_setclientid_maxsz)
230 #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
231 decode_setclientid_maxsz)
232 #define NFS4_enc_setclientid_confirm_sz \
233 (compound_encode_hdr_maxsz + \
234 encode_setclientid_confirm_maxsz + \
235 encode_putrootfh_maxsz + \
237 #define NFS4_dec_setclientid_confirm_sz \
238 (compound_decode_hdr_maxsz + \
239 decode_setclientid_confirm_maxsz + \
240 decode_putrootfh_maxsz + \
242 #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
243 encode_putfh_maxsz + \
244 encode_getattr_maxsz + \
245 op_encode_hdr_maxsz + \
249 #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
250 decode_putfh_maxsz + \
251 decode_getattr_maxsz + \
252 op_decode_hdr_maxsz + \
255 #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
256 encode_putfh_maxsz + \
257 encode_getattr_maxsz + \
258 op_encode_hdr_maxsz + \
261 #define NFS4_dec_lockt_sz (NFS4_dec_lock_sz)
262 #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
263 encode_putfh_maxsz + \
264 encode_getattr_maxsz + \
265 op_encode_hdr_maxsz + \
267 #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
268 decode_putfh_maxsz + \
269 decode_getattr_maxsz + \
270 op_decode_hdr_maxsz + 4)
271 #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
272 encode_putfh_maxsz + \
273 op_encode_hdr_maxsz + 1)
274 #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
275 decode_putfh_maxsz + \
276 op_decode_hdr_maxsz + 2)
277 #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
278 encode_putfh_maxsz + \
279 encode_getattr_maxsz)
280 #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
281 decode_putfh_maxsz + \
282 decode_getattr_maxsz)
283 #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
284 encode_putfh_maxsz + \
285 encode_lookup_maxsz + \
286 encode_getattr_maxsz + \
288 #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
289 decode_putfh_maxsz + \
290 op_decode_hdr_maxsz + \
291 decode_getattr_maxsz + \
293 #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
294 encode_putrootfh_maxsz + \
295 encode_getattr_maxsz + \
297 #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
298 decode_putrootfh_maxsz + \
299 decode_getattr_maxsz + \
301 #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
302 encode_putfh_maxsz + \
304 #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
305 decode_putfh_maxsz + \
306 op_decode_hdr_maxsz + 5)
307 #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
308 encode_putfh_maxsz + \
309 encode_savefh_maxsz + \
310 encode_putfh_maxsz + \
312 #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
313 decode_putfh_maxsz + \
314 decode_savefh_maxsz + \
315 decode_putfh_maxsz + \
317 #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
318 encode_putfh_maxsz + \
319 encode_savefh_maxsz + \
320 encode_putfh_maxsz + \
322 #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
323 decode_putfh_maxsz + \
324 decode_savefh_maxsz + \
325 decode_putfh_maxsz + \
327 #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
328 encode_putfh_maxsz + \
329 encode_symlink_maxsz + \
330 encode_getattr_maxsz + \
332 #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
333 decode_putfh_maxsz + \
334 decode_symlink_maxsz + \
335 decode_getattr_maxsz + \
337 #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
338 encode_putfh_maxsz + \
339 encode_create_maxsz + \
340 encode_getattr_maxsz + \
342 #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
343 decode_putfh_maxsz + \
344 decode_create_maxsz + \
345 decode_getattr_maxsz + \
347 #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
348 encode_putfh_maxsz + \
349 encode_getattr_maxsz)
350 #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
351 decode_putfh_maxsz + \
352 decode_getattr_maxsz)
353 #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
354 encode_putfh_maxsz + \
355 encode_getattr_maxsz)
356 #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
357 decode_putfh_maxsz + \
358 op_decode_hdr_maxsz + 12)
359 #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
360 encode_getattr_maxsz)
361 #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
362 decode_getattr_maxsz)
363 #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
364 encode_putfh_maxsz + \
365 encode_delegreturn_maxsz)
366 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
367 decode_delegreturn_maxsz)
368 #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
369 encode_putfh_maxsz + \
370 encode_getattr_maxsz)
371 #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
372 decode_putfh_maxsz + \
373 op_decode_hdr_maxsz + \
374 nfs4_fattr_bitmap_maxsz + 1)
375 #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
376 encode_putfh_maxsz + \
377 op_encode_hdr_maxsz + 4 + \
378 nfs4_fattr_bitmap_maxsz + 1)
379 #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
380 decode_putfh_maxsz + \
381 op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
385 unsigned int nfs2type
;
393 { S_IFSOCK
, NFSOCK
},
399 struct compound_hdr
{
407 * START OF "GENERIC" ENCODE ROUTINES.
408 * These may look a little ugly since they are imported from a "generic"
409 * set of XDR encode/decode routines which are intended to be shared by
410 * all of our NFSv4 implementations (OpenBSD, MacOS X...).
412 * If the pain of reading these is too great, it should be a straightforward
413 * task to translate them into Linux-specific versions which are more
414 * consistent with the style used in NFSv2/v3...
416 #define WRITE32(n) *p++ = htonl(n)
417 #define WRITE64(n) do { \
418 *p++ = htonl((uint32_t)((n) >> 32)); \
419 *p++ = htonl((uint32_t)(n)); \
421 #define WRITEMEM(ptr,nbytes) do { \
422 p = xdr_encode_opaque_fixed(p, ptr, nbytes); \
425 #define RESERVE_SPACE(nbytes) do { \
426 p = xdr_reserve_space(xdr, nbytes); \
427 if (!p) printk("RESERVE_SPACE(%d) failed in function %s\n", (int) (nbytes), __FUNCTION__); \
431 static void encode_string(struct xdr_stream
*xdr
, unsigned int len
, const char *str
)
435 p
= xdr_reserve_space(xdr
, 4 + len
);
437 xdr_encode_opaque(p
, str
, len
);
440 static int encode_compound_hdr(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
444 dprintk("encode_compound: tag=%.*s\n", (int)hdr
->taglen
, hdr
->tag
);
445 BUG_ON(hdr
->taglen
> NFS4_MAXTAGLEN
);
446 RESERVE_SPACE(12+(XDR_QUADLEN(hdr
->taglen
)<<2));
447 WRITE32(hdr
->taglen
);
448 WRITEMEM(hdr
->tag
, hdr
->taglen
);
449 WRITE32(NFS4_MINOR_VERSION
);
454 static void encode_nfs4_verifier(struct xdr_stream
*xdr
, const nfs4_verifier
*verf
)
458 p
= xdr_reserve_space(xdr
, NFS4_VERIFIER_SIZE
);
460 xdr_encode_opaque_fixed(p
, verf
->data
, NFS4_VERIFIER_SIZE
);
463 static int encode_attrs(struct xdr_stream
*xdr
, const struct iattr
*iap
, const struct nfs_server
*server
)
465 char owner_name
[IDMAP_NAMESZ
];
466 char owner_group
[IDMAP_NAMESZ
];
467 int owner_namelen
= 0;
468 int owner_grouplen
= 0;
477 * We reserve enough space to write the entire attribute buffer at once.
478 * In the worst-case, this would be
479 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
480 * = 36 bytes, plus any contribution from variable-length fields
481 * such as owner/group.
486 if (iap
->ia_valid
& ATTR_SIZE
)
488 if (iap
->ia_valid
& ATTR_MODE
)
490 if (iap
->ia_valid
& ATTR_UID
) {
491 owner_namelen
= nfs_map_uid_to_name(server
->nfs4_state
, iap
->ia_uid
, owner_name
);
492 if (owner_namelen
< 0) {
493 printk(KERN_WARNING
"nfs: couldn't resolve uid %d to string\n",
496 strcpy(owner_name
, "nobody");
497 owner_namelen
= sizeof("nobody") - 1;
500 len
+= 4 + (XDR_QUADLEN(owner_namelen
) << 2);
502 if (iap
->ia_valid
& ATTR_GID
) {
503 owner_grouplen
= nfs_map_gid_to_group(server
->nfs4_state
, iap
->ia_gid
, owner_group
);
504 if (owner_grouplen
< 0) {
505 printk(KERN_WARNING
"nfs4: couldn't resolve gid %d to string\n",
507 strcpy(owner_group
, "nobody");
508 owner_grouplen
= sizeof("nobody") - 1;
511 len
+= 4 + (XDR_QUADLEN(owner_grouplen
) << 2);
513 if (iap
->ia_valid
& ATTR_ATIME_SET
)
515 else if (iap
->ia_valid
& ATTR_ATIME
)
517 if (iap
->ia_valid
& ATTR_MTIME_SET
)
519 else if (iap
->ia_valid
& ATTR_MTIME
)
524 * We write the bitmap length now, but leave the bitmap and the attribute
525 * buffer length to be backfilled at the end of this routine.
531 if (iap
->ia_valid
& ATTR_SIZE
) {
532 bmval0
|= FATTR4_WORD0_SIZE
;
533 WRITE64(iap
->ia_size
);
535 if (iap
->ia_valid
& ATTR_MODE
) {
536 bmval1
|= FATTR4_WORD1_MODE
;
537 WRITE32(iap
->ia_mode
);
539 if (iap
->ia_valid
& ATTR_UID
) {
540 bmval1
|= FATTR4_WORD1_OWNER
;
541 WRITE32(owner_namelen
);
542 WRITEMEM(owner_name
, owner_namelen
);
544 if (iap
->ia_valid
& ATTR_GID
) {
545 bmval1
|= FATTR4_WORD1_OWNER_GROUP
;
546 WRITE32(owner_grouplen
);
547 WRITEMEM(owner_group
, owner_grouplen
);
549 if (iap
->ia_valid
& ATTR_ATIME_SET
) {
550 bmval1
|= FATTR4_WORD1_TIME_ACCESS_SET
;
551 WRITE32(NFS4_SET_TO_CLIENT_TIME
);
553 WRITE32(iap
->ia_mtime
.tv_sec
);
554 WRITE32(iap
->ia_mtime
.tv_nsec
);
556 else if (iap
->ia_valid
& ATTR_ATIME
) {
557 bmval1
|= FATTR4_WORD1_TIME_ACCESS_SET
;
558 WRITE32(NFS4_SET_TO_SERVER_TIME
);
560 if (iap
->ia_valid
& ATTR_MTIME_SET
) {
561 bmval1
|= FATTR4_WORD1_TIME_MODIFY_SET
;
562 WRITE32(NFS4_SET_TO_CLIENT_TIME
);
564 WRITE32(iap
->ia_mtime
.tv_sec
);
565 WRITE32(iap
->ia_mtime
.tv_nsec
);
567 else if (iap
->ia_valid
& ATTR_MTIME
) {
568 bmval1
|= FATTR4_WORD1_TIME_MODIFY_SET
;
569 WRITE32(NFS4_SET_TO_SERVER_TIME
);
573 * Now we backfill the bitmap and the attribute buffer length.
575 if (len
!= ((char *)p
- (char *)q
) + 4) {
576 printk ("encode_attr: Attr length calculation error! %u != %Zu\n",
577 len
, ((char *)p
- (char *)q
) + 4);
580 len
= (char *)p
- (char *)q
- 12;
581 *q
++ = htonl(bmval0
);
582 *q
++ = htonl(bmval1
);
590 static int encode_access(struct xdr_stream
*xdr
, u32 access
)
601 static int encode_close(struct xdr_stream
*xdr
, const struct nfs_closeargs
*arg
)
605 RESERVE_SPACE(8+sizeof(arg
->stateid
->data
));
607 WRITE32(arg
->seqid
->sequence
->counter
);
608 WRITEMEM(arg
->stateid
->data
, sizeof(arg
->stateid
->data
));
613 static int encode_commit(struct xdr_stream
*xdr
, const struct nfs_writeargs
*args
)
619 WRITE64(args
->offset
);
620 WRITE32(args
->count
);
625 static int encode_create(struct xdr_stream
*xdr
, const struct nfs4_create_arg
*create
)
631 WRITE32(create
->ftype
);
633 switch (create
->ftype
) {
635 RESERVE_SPACE(4 + create
->u
.symlink
->len
);
636 WRITE32(create
->u
.symlink
->len
);
637 WRITEMEM(create
->u
.symlink
->name
, create
->u
.symlink
->len
);
640 case NF4BLK
: case NF4CHR
:
642 WRITE32(create
->u
.device
.specdata1
);
643 WRITE32(create
->u
.device
.specdata2
);
650 RESERVE_SPACE(4 + create
->name
->len
);
651 WRITE32(create
->name
->len
);
652 WRITEMEM(create
->name
->name
, create
->name
->len
);
654 return encode_attrs(xdr
, create
->attrs
, create
->server
);
657 static int encode_getattr_one(struct xdr_stream
*xdr
, uint32_t bitmap
)
668 static int encode_getattr_two(struct xdr_stream
*xdr
, uint32_t bm0
, uint32_t bm1
)
680 static int encode_getfattr(struct xdr_stream
*xdr
, const u32
* bitmask
)
682 return encode_getattr_two(xdr
,
683 bitmask
[0] & nfs4_fattr_bitmap
[0],
684 bitmask
[1] & nfs4_fattr_bitmap
[1]);
687 static int encode_fsinfo(struct xdr_stream
*xdr
, const u32
* bitmask
)
689 return encode_getattr_two(xdr
, bitmask
[0] & nfs4_fsinfo_bitmap
[0],
690 bitmask
[1] & nfs4_fsinfo_bitmap
[1]);
693 static int encode_getfh(struct xdr_stream
*xdr
)
703 static int encode_link(struct xdr_stream
*xdr
, const struct qstr
*name
)
707 RESERVE_SPACE(8 + name
->len
);
710 WRITEMEM(name
->name
, name
->len
);
716 * opcode,type,reclaim,offset,length,new_lock_owner = 32
717 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
719 static int encode_lock(struct xdr_stream
*xdr
, const struct nfs_lockargs
*arg
)
722 struct nfs_lock_opargs
*opargs
= arg
->u
.lock
;
727 WRITE32(opargs
->reclaim
);
728 WRITE64(arg
->offset
);
729 WRITE64(arg
->length
);
730 WRITE32(opargs
->new_lock_owner
);
731 if (opargs
->new_lock_owner
){
733 WRITE32(opargs
->open_seqid
->sequence
->counter
);
734 WRITEMEM(opargs
->open_stateid
->data
, sizeof(opargs
->open_stateid
->data
));
735 WRITE32(opargs
->lock_seqid
->sequence
->counter
);
736 WRITE64(opargs
->lock_owner
.clientid
);
738 WRITE32(opargs
->lock_owner
.id
);
742 WRITEMEM(opargs
->lock_stateid
->data
, sizeof(opargs
->lock_stateid
->data
));
743 WRITE32(opargs
->lock_seqid
->sequence
->counter
);
749 static int encode_lockt(struct xdr_stream
*xdr
, const struct nfs_lockargs
*arg
)
752 struct nfs_lowner
*opargs
= arg
->u
.lockt
;
757 WRITE64(arg
->offset
);
758 WRITE64(arg
->length
);
759 WRITE64(opargs
->clientid
);
766 static int encode_locku(struct xdr_stream
*xdr
, const struct nfs_lockargs
*arg
)
769 struct nfs_locku_opargs
*opargs
= arg
->u
.locku
;
774 WRITE32(opargs
->seqid
->sequence
->counter
);
775 WRITEMEM(opargs
->stateid
->data
, sizeof(opargs
->stateid
->data
));
776 WRITE64(arg
->offset
);
777 WRITE64(arg
->length
);
782 static int encode_lookup(struct xdr_stream
*xdr
, const struct qstr
*name
)
787 RESERVE_SPACE(8 + len
);
790 WRITEMEM(name
->name
, len
);
795 static void encode_share_access(struct xdr_stream
*xdr
, int open_flags
)
800 switch (open_flags
& (FMODE_READ
|FMODE_WRITE
)) {
802 WRITE32(NFS4_SHARE_ACCESS_READ
);
805 WRITE32(NFS4_SHARE_ACCESS_WRITE
);
807 case FMODE_READ
|FMODE_WRITE
:
808 WRITE32(NFS4_SHARE_ACCESS_BOTH
);
813 WRITE32(0); /* for linux, share_deny = 0 always */
816 static inline void encode_openhdr(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
820 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
825 WRITE32(arg
->seqid
->sequence
->counter
);
826 encode_share_access(xdr
, arg
->open_flags
);
828 WRITE64(arg
->clientid
);
833 static inline void encode_createmode(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
838 switch(arg
->open_flags
& O_EXCL
) {
840 WRITE32(NFS4_CREATE_UNCHECKED
);
841 encode_attrs(xdr
, arg
->u
.attrs
, arg
->server
);
844 WRITE32(NFS4_CREATE_EXCLUSIVE
);
845 encode_nfs4_verifier(xdr
, &arg
->u
.verifier
);
849 static void encode_opentype(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
854 switch (arg
->open_flags
& O_CREAT
) {
856 WRITE32(NFS4_OPEN_NOCREATE
);
859 BUG_ON(arg
->claim
!= NFS4_OPEN_CLAIM_NULL
);
860 WRITE32(NFS4_OPEN_CREATE
);
861 encode_createmode(xdr
, arg
);
865 static inline void encode_delegation_type(struct xdr_stream
*xdr
, int delegation_type
)
870 switch (delegation_type
) {
872 WRITE32(NFS4_OPEN_DELEGATE_NONE
);
875 WRITE32(NFS4_OPEN_DELEGATE_READ
);
877 case FMODE_WRITE
|FMODE_READ
:
878 WRITE32(NFS4_OPEN_DELEGATE_WRITE
);
885 static inline void encode_claim_null(struct xdr_stream
*xdr
, const struct qstr
*name
)
890 WRITE32(NFS4_OPEN_CLAIM_NULL
);
891 encode_string(xdr
, name
->len
, name
->name
);
894 static inline void encode_claim_previous(struct xdr_stream
*xdr
, int type
)
899 WRITE32(NFS4_OPEN_CLAIM_PREVIOUS
);
900 encode_delegation_type(xdr
, type
);
903 static inline void encode_claim_delegate_cur(struct xdr_stream
*xdr
, const struct qstr
*name
, const nfs4_stateid
*stateid
)
907 RESERVE_SPACE(4+sizeof(stateid
->data
));
908 WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR
);
909 WRITEMEM(stateid
->data
, sizeof(stateid
->data
));
910 encode_string(xdr
, name
->len
, name
->name
);
913 static int encode_open(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
915 encode_openhdr(xdr
, arg
);
916 encode_opentype(xdr
, arg
);
917 switch (arg
->claim
) {
918 case NFS4_OPEN_CLAIM_NULL
:
919 encode_claim_null(xdr
, arg
->name
);
921 case NFS4_OPEN_CLAIM_PREVIOUS
:
922 encode_claim_previous(xdr
, arg
->u
.delegation_type
);
924 case NFS4_OPEN_CLAIM_DELEGATE_CUR
:
925 encode_claim_delegate_cur(xdr
, arg
->name
, &arg
->u
.delegation
);
933 static int encode_open_confirm(struct xdr_stream
*xdr
, const struct nfs_open_confirmargs
*arg
)
937 RESERVE_SPACE(8+sizeof(arg
->stateid
.data
));
938 WRITE32(OP_OPEN_CONFIRM
);
939 WRITEMEM(arg
->stateid
.data
, sizeof(arg
->stateid
.data
));
940 WRITE32(arg
->seqid
->sequence
->counter
);
945 static int encode_open_downgrade(struct xdr_stream
*xdr
, const struct nfs_closeargs
*arg
)
949 RESERVE_SPACE(8+sizeof(arg
->stateid
->data
));
950 WRITE32(OP_OPEN_DOWNGRADE
);
951 WRITEMEM(arg
->stateid
->data
, sizeof(arg
->stateid
->data
));
952 WRITE32(arg
->seqid
->sequence
->counter
);
953 encode_share_access(xdr
, arg
->open_flags
);
958 encode_putfh(struct xdr_stream
*xdr
, const struct nfs_fh
*fh
)
963 RESERVE_SPACE(8 + len
);
966 WRITEMEM(fh
->data
, len
);
971 static int encode_putrootfh(struct xdr_stream
*xdr
)
976 WRITE32(OP_PUTROOTFH
);
981 static void encode_stateid(struct xdr_stream
*xdr
, const struct nfs_open_context
*ctx
)
983 nfs4_stateid stateid
;
987 if (ctx
->state
!= NULL
) {
988 nfs4_copy_stateid(&stateid
, ctx
->state
, ctx
->lockowner
);
989 WRITEMEM(stateid
.data
, sizeof(stateid
.data
));
991 WRITEMEM(zero_stateid
.data
, sizeof(zero_stateid
.data
));
994 static int encode_read(struct xdr_stream
*xdr
, const struct nfs_readargs
*args
)
1001 encode_stateid(xdr
, args
->context
);
1004 WRITE64(args
->offset
);
1005 WRITE32(args
->count
);
1010 static int encode_readdir(struct xdr_stream
*xdr
, const struct nfs4_readdir_arg
*readdir
, struct rpc_rqst
*req
)
1012 struct rpc_auth
*auth
= req
->rq_task
->tk_auth
;
1013 uint32_t attrs
[2] = {
1014 FATTR4_WORD0_RDATTR_ERROR
|FATTR4_WORD0_FILEID
,
1015 FATTR4_WORD1_MOUNTED_ON_FILEID
,
1020 RESERVE_SPACE(32+sizeof(nfs4_verifier
));
1021 WRITE32(OP_READDIR
);
1022 WRITE64(readdir
->cookie
);
1023 WRITEMEM(readdir
->verifier
.data
, sizeof(readdir
->verifier
.data
));
1024 WRITE32(readdir
->count
>> 1); /* We're not doing readdirplus */
1025 WRITE32(readdir
->count
);
1027 /* Switch to mounted_on_fileid if the server supports it */
1028 if (readdir
->bitmask
[1] & FATTR4_WORD1_MOUNTED_ON_FILEID
)
1029 attrs
[0] &= ~FATTR4_WORD0_FILEID
;
1031 attrs
[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID
;
1032 WRITE32(attrs
[0] & readdir
->bitmask
[0]);
1033 WRITE32(attrs
[1] & readdir
->bitmask
[1]);
1034 dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n",
1036 (unsigned long long)readdir
->cookie
,
1037 ((u32
*)readdir
->verifier
.data
)[0],
1038 ((u32
*)readdir
->verifier
.data
)[1],
1039 attrs
[0] & readdir
->bitmask
[0],
1040 attrs
[1] & readdir
->bitmask
[1]);
1042 /* set up reply kvec
1043 * toplevel_status + taglen + rescount + OP_PUTFH + status
1044 * + OP_READDIR + status + verifer(2) = 9
1046 replen
= (RPC_REPHDRSIZE
+ auth
->au_rslack
+ 9) << 2;
1047 xdr_inline_pages(&req
->rq_rcv_buf
, replen
, readdir
->pages
,
1048 readdir
->pgbase
, readdir
->count
);
1049 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
1050 __FUNCTION__
, replen
, readdir
->pages
,
1051 readdir
->pgbase
, readdir
->count
);
1056 static int encode_readlink(struct xdr_stream
*xdr
, const struct nfs4_readlink
*readlink
, struct rpc_rqst
*req
)
1058 struct rpc_auth
*auth
= req
->rq_task
->tk_auth
;
1059 unsigned int replen
;
1063 WRITE32(OP_READLINK
);
1065 /* set up reply kvec
1066 * toplevel_status + taglen + rescount + OP_PUTFH + status
1067 * + OP_READLINK + status + string length = 8
1069 replen
= (RPC_REPHDRSIZE
+ auth
->au_rslack
+ 8) << 2;
1070 xdr_inline_pages(&req
->rq_rcv_buf
, replen
, readlink
->pages
,
1071 readlink
->pgbase
, readlink
->pglen
);
1076 static int encode_remove(struct xdr_stream
*xdr
, const struct qstr
*name
)
1080 RESERVE_SPACE(8 + name
->len
);
1083 WRITEMEM(name
->name
, name
->len
);
1088 static int encode_rename(struct xdr_stream
*xdr
, const struct qstr
*oldname
, const struct qstr
*newname
)
1092 RESERVE_SPACE(8 + oldname
->len
);
1094 WRITE32(oldname
->len
);
1095 WRITEMEM(oldname
->name
, oldname
->len
);
1097 RESERVE_SPACE(4 + newname
->len
);
1098 WRITE32(newname
->len
);
1099 WRITEMEM(newname
->name
, newname
->len
);
1104 static int encode_renew(struct xdr_stream
*xdr
, const struct nfs4_client
*client_stateid
)
1110 WRITE64(client_stateid
->cl_clientid
);
1116 encode_setacl(struct xdr_stream
*xdr
, struct nfs_setaclargs
*arg
)
1120 RESERVE_SPACE(4+sizeof(zero_stateid
.data
));
1121 WRITE32(OP_SETATTR
);
1122 WRITEMEM(zero_stateid
.data
, sizeof(zero_stateid
.data
));
1125 WRITE32(FATTR4_WORD0_ACL
);
1126 if (arg
->acl_len
% 4)
1129 WRITE32(arg
->acl_len
);
1130 xdr_write_pages(xdr
, arg
->acl_pages
, arg
->acl_pgbase
, arg
->acl_len
);
1135 encode_savefh(struct xdr_stream
*xdr
)
1145 static int encode_setattr(struct xdr_stream
*xdr
, const struct nfs_setattrargs
*arg
, const struct nfs_server
*server
)
1150 RESERVE_SPACE(4+sizeof(arg
->stateid
.data
));
1151 WRITE32(OP_SETATTR
);
1152 WRITEMEM(arg
->stateid
.data
, sizeof(arg
->stateid
.data
));
1154 if ((status
= encode_attrs(xdr
, arg
->iap
, server
)))
1160 static int encode_setclientid(struct xdr_stream
*xdr
, const struct nfs4_setclientid
*setclientid
)
1164 RESERVE_SPACE(4 + sizeof(setclientid
->sc_verifier
->data
));
1165 WRITE32(OP_SETCLIENTID
);
1166 WRITEMEM(setclientid
->sc_verifier
->data
, sizeof(setclientid
->sc_verifier
->data
));
1168 encode_string(xdr
, setclientid
->sc_name_len
, setclientid
->sc_name
);
1170 WRITE32(setclientid
->sc_prog
);
1171 encode_string(xdr
, setclientid
->sc_netid_len
, setclientid
->sc_netid
);
1172 encode_string(xdr
, setclientid
->sc_uaddr_len
, setclientid
->sc_uaddr
);
1174 WRITE32(setclientid
->sc_cb_ident
);
1179 static int encode_setclientid_confirm(struct xdr_stream
*xdr
, const struct nfs4_client
*client_state
)
1183 RESERVE_SPACE(12 + sizeof(client_state
->cl_confirm
.data
));
1184 WRITE32(OP_SETCLIENTID_CONFIRM
);
1185 WRITE64(client_state
->cl_clientid
);
1186 WRITEMEM(client_state
->cl_confirm
.data
, sizeof(client_state
->cl_confirm
.data
));
1191 static int encode_write(struct xdr_stream
*xdr
, const struct nfs_writeargs
*args
)
1198 encode_stateid(xdr
, args
->context
);
1201 WRITE64(args
->offset
);
1202 WRITE32(args
->stable
);
1203 WRITE32(args
->count
);
1205 xdr_write_pages(xdr
, args
->pages
, args
->pgbase
, args
->count
);
1210 static int encode_delegreturn(struct xdr_stream
*xdr
, const nfs4_stateid
*stateid
)
1216 WRITE32(OP_DELEGRETURN
);
1217 WRITEMEM(stateid
->data
, sizeof(stateid
->data
));
1222 * END OF "GENERIC" ENCODE ROUTINES.
1226 * Encode an ACCESS request
1228 static int nfs4_xdr_enc_access(struct rpc_rqst
*req
, uint32_t *p
, const struct nfs4_accessargs
*args
)
1230 struct xdr_stream xdr
;
1231 struct compound_hdr hdr
= {
1236 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1237 encode_compound_hdr(&xdr
, &hdr
);
1238 if ((status
= encode_putfh(&xdr
, args
->fh
)) == 0)
1239 status
= encode_access(&xdr
, args
->access
);
1244 * Encode LOOKUP request
1246 static int nfs4_xdr_enc_lookup(struct rpc_rqst
*req
, uint32_t *p
, const struct nfs4_lookup_arg
*args
)
1248 struct xdr_stream xdr
;
1249 struct compound_hdr hdr
= {
1254 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1255 encode_compound_hdr(&xdr
, &hdr
);
1256 if ((status
= encode_putfh(&xdr
, args
->dir_fh
)) != 0)
1258 if ((status
= encode_lookup(&xdr
, args
->name
)) != 0)
1260 if ((status
= encode_getfh(&xdr
)) != 0)
1262 status
= encode_getfattr(&xdr
, args
->bitmask
);
1268 * Encode LOOKUP_ROOT request
1270 static int nfs4_xdr_enc_lookup_root(struct rpc_rqst
*req
, uint32_t *p
, const struct nfs4_lookup_root_arg
*args
)
1272 struct xdr_stream xdr
;
1273 struct compound_hdr hdr
= {
1278 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1279 encode_compound_hdr(&xdr
, &hdr
);
1280 if ((status
= encode_putrootfh(&xdr
)) != 0)
1282 if ((status
= encode_getfh(&xdr
)) == 0)
1283 status
= encode_getfattr(&xdr
, args
->bitmask
);
1289 * Encode REMOVE request
1291 static int nfs4_xdr_enc_remove(struct rpc_rqst
*req
, uint32_t *p
, const struct nfs4_remove_arg
*args
)
1293 struct xdr_stream xdr
;
1294 struct compound_hdr hdr
= {
1299 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1300 encode_compound_hdr(&xdr
, &hdr
);
1301 if ((status
= encode_putfh(&xdr
, args
->fh
)) == 0)
1302 status
= encode_remove(&xdr
, args
->name
);
1307 * Encode RENAME request
1309 static int nfs4_xdr_enc_rename(struct rpc_rqst
*req
, uint32_t *p
, const struct nfs4_rename_arg
*args
)
1311 struct xdr_stream xdr
;
1312 struct compound_hdr hdr
= {
1317 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1318 encode_compound_hdr(&xdr
, &hdr
);
1319 if ((status
= encode_putfh(&xdr
, args
->old_dir
)) != 0)
1321 if ((status
= encode_savefh(&xdr
)) != 0)
1323 if ((status
= encode_putfh(&xdr
, args
->new_dir
)) != 0)
1325 status
= encode_rename(&xdr
, args
->old_name
, args
->new_name
);
1331 * Encode LINK request
1333 static int nfs4_xdr_enc_link(struct rpc_rqst
*req
, uint32_t *p
, const struct nfs4_link_arg
*args
)
1335 struct xdr_stream xdr
;
1336 struct compound_hdr hdr
= {
1341 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1342 encode_compound_hdr(&xdr
, &hdr
);
1343 if ((status
= encode_putfh(&xdr
, args
->fh
)) != 0)
1345 if ((status
= encode_savefh(&xdr
)) != 0)
1347 if ((status
= encode_putfh(&xdr
, args
->dir_fh
)) != 0)
1349 status
= encode_link(&xdr
, args
->name
);
1355 * Encode CREATE request
1357 static int nfs4_xdr_enc_create(struct rpc_rqst
*req
, uint32_t *p
, const struct nfs4_create_arg
*args
)
1359 struct xdr_stream xdr
;
1360 struct compound_hdr hdr
= {
1365 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1366 encode_compound_hdr(&xdr
, &hdr
);
1367 if ((status
= encode_putfh(&xdr
, args
->dir_fh
)) != 0)
1369 if ((status
= encode_create(&xdr
, args
)) != 0)
1371 if ((status
= encode_getfh(&xdr
)) != 0)
1373 status
= encode_getfattr(&xdr
, args
->bitmask
);
1379 * Encode SYMLINK request
1381 static int nfs4_xdr_enc_symlink(struct rpc_rqst
*req
, uint32_t *p
, const struct nfs4_create_arg
*args
)
1383 return nfs4_xdr_enc_create(req
, p
, args
);
1387 * Encode GETATTR request
1389 static int nfs4_xdr_enc_getattr(struct rpc_rqst
*req
, uint32_t *p
, const struct nfs4_getattr_arg
*args
)
1391 struct xdr_stream xdr
;
1392 struct compound_hdr hdr
= {
1397 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1398 encode_compound_hdr(&xdr
, &hdr
);
1399 if ((status
= encode_putfh(&xdr
, args
->fh
)) == 0)
1400 status
= encode_getfattr(&xdr
, args
->bitmask
);
1405 * Encode a CLOSE request
1407 static int nfs4_xdr_enc_close(struct rpc_rqst
*req
, uint32_t *p
, struct nfs_closeargs
*args
)
1409 struct xdr_stream xdr
;
1410 struct compound_hdr hdr
= {
1415 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1416 encode_compound_hdr(&xdr
, &hdr
);
1417 status
= encode_putfh(&xdr
, args
->fh
);
1420 status
= encode_close(&xdr
, args
);
1426 * Encode an OPEN request
1428 static int nfs4_xdr_enc_open(struct rpc_rqst
*req
, uint32_t *p
, struct nfs_openargs
*args
)
1430 struct xdr_stream xdr
;
1431 struct compound_hdr hdr
= {
1436 status
= nfs_wait_on_sequence(args
->seqid
, req
->rq_task
);
1439 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1440 encode_compound_hdr(&xdr
, &hdr
);
1441 status
= encode_putfh(&xdr
, args
->fh
);
1444 status
= encode_open(&xdr
, args
);
1447 status
= encode_getfh(&xdr
);
1450 status
= encode_getfattr(&xdr
, args
->bitmask
);
1456 * Encode an OPEN_CONFIRM request
1458 static int nfs4_xdr_enc_open_confirm(struct rpc_rqst
*req
, uint32_t *p
, struct nfs_open_confirmargs
*args
)
1460 struct xdr_stream xdr
;
1461 struct compound_hdr hdr
= {
1466 status
= nfs_wait_on_sequence(args
->seqid
, req
->rq_task
);
1469 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1470 encode_compound_hdr(&xdr
, &hdr
);
1471 status
= encode_putfh(&xdr
, args
->fh
);
1474 status
= encode_open_confirm(&xdr
, args
);
1480 * Encode an OPEN request with no attributes.
1482 static int nfs4_xdr_enc_open_noattr(struct rpc_rqst
*req
, uint32_t *p
, struct nfs_openargs
*args
)
1484 struct xdr_stream xdr
;
1485 struct compound_hdr hdr
= {
1490 status
= nfs_wait_on_sequence(args
->seqid
, req
->rq_task
);
1493 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1494 encode_compound_hdr(&xdr
, &hdr
);
1495 status
= encode_putfh(&xdr
, args
->fh
);
1498 status
= encode_open(&xdr
, args
);
1504 * Encode an OPEN_DOWNGRADE request
1506 static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst
*req
, uint32_t *p
, struct nfs_closeargs
*args
)
1508 struct xdr_stream xdr
;
1509 struct compound_hdr hdr
= {
1514 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1515 encode_compound_hdr(&xdr
, &hdr
);
1516 status
= encode_putfh(&xdr
, args
->fh
);
1519 status
= encode_open_downgrade(&xdr
, args
);
1525 * Encode a LOCK request
1527 static int nfs4_xdr_enc_lock(struct rpc_rqst
*req
, uint32_t *p
, struct nfs_lockargs
*args
)
1529 struct xdr_stream xdr
;
1530 struct compound_hdr hdr
= {
1533 struct nfs_lock_opargs
*opargs
= args
->u
.lock
;
1536 status
= nfs_wait_on_sequence(opargs
->lock_seqid
, req
->rq_task
);
1539 /* Do we need to do an open_to_lock_owner? */
1540 if (opargs
->lock_seqid
->sequence
->flags
& NFS_SEQID_CONFIRMED
)
1541 opargs
->new_lock_owner
= 0;
1542 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1543 encode_compound_hdr(&xdr
, &hdr
);
1544 status
= encode_putfh(&xdr
, args
->fh
);
1547 status
= encode_lock(&xdr
, args
);
1553 * Encode a LOCKT request
1555 static int nfs4_xdr_enc_lockt(struct rpc_rqst
*req
, uint32_t *p
, struct nfs_lockargs
*args
)
1557 struct xdr_stream xdr
;
1558 struct compound_hdr hdr
= {
1563 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1564 encode_compound_hdr(&xdr
, &hdr
);
1565 status
= encode_putfh(&xdr
, args
->fh
);
1568 status
= encode_lockt(&xdr
, args
);
1574 * Encode a LOCKU request
1576 static int nfs4_xdr_enc_locku(struct rpc_rqst
*req
, uint32_t *p
, struct nfs_lockargs
*args
)
1578 struct xdr_stream xdr
;
1579 struct compound_hdr hdr
= {
1584 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1585 encode_compound_hdr(&xdr
, &hdr
);
1586 status
= encode_putfh(&xdr
, args
->fh
);
1589 status
= encode_locku(&xdr
, args
);
1595 * Encode a READLINK request
1597 static int nfs4_xdr_enc_readlink(struct rpc_rqst
*req
, uint32_t *p
, const struct nfs4_readlink
*args
)
1599 struct xdr_stream xdr
;
1600 struct compound_hdr hdr
= {
1605 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1606 encode_compound_hdr(&xdr
, &hdr
);
1607 status
= encode_putfh(&xdr
, args
->fh
);
1610 status
= encode_readlink(&xdr
, args
, req
);
1616 * Encode a READDIR request
1618 static int nfs4_xdr_enc_readdir(struct rpc_rqst
*req
, uint32_t *p
, const struct nfs4_readdir_arg
*args
)
1620 struct xdr_stream xdr
;
1621 struct compound_hdr hdr
= {
1626 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1627 encode_compound_hdr(&xdr
, &hdr
);
1628 status
= encode_putfh(&xdr
, args
->fh
);
1631 status
= encode_readdir(&xdr
, args
, req
);
1637 * Encode a READ request
1639 static int nfs4_xdr_enc_read(struct rpc_rqst
*req
, uint32_t *p
, struct nfs_readargs
*args
)
1641 struct rpc_auth
*auth
= req
->rq_task
->tk_auth
;
1642 struct xdr_stream xdr
;
1643 struct compound_hdr hdr
= {
1648 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1649 encode_compound_hdr(&xdr
, &hdr
);
1650 status
= encode_putfh(&xdr
, args
->fh
);
1653 status
= encode_read(&xdr
, args
);
1657 /* set up reply kvec
1658 * toplevel status + taglen=0 + rescount + OP_PUTFH + status
1659 * + OP_READ + status + eof + datalen = 9
1661 replen
= (RPC_REPHDRSIZE
+ auth
->au_rslack
+ NFS4_dec_read_sz
) << 2;
1662 xdr_inline_pages(&req
->rq_rcv_buf
, replen
,
1663 args
->pages
, args
->pgbase
, args
->count
);
1669 * Encode an SETATTR request
1671 static int nfs4_xdr_enc_setattr(struct rpc_rqst
*req
, uint32_t *p
, struct nfs_setattrargs
*args
)
1674 struct xdr_stream xdr
;
1675 struct compound_hdr hdr
= {
1680 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1681 encode_compound_hdr(&xdr
, &hdr
);
1682 status
= encode_putfh(&xdr
, args
->fh
);
1685 status
= encode_setattr(&xdr
, args
, args
->server
);
1688 status
= encode_getfattr(&xdr
, args
->bitmask
);
1694 * Encode a GETACL request
1697 nfs4_xdr_enc_getacl(struct rpc_rqst
*req
, uint32_t *p
,
1698 struct nfs_getaclargs
*args
)
1700 struct xdr_stream xdr
;
1701 struct rpc_auth
*auth
= req
->rq_task
->tk_auth
;
1702 struct compound_hdr hdr
= {
1707 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1708 encode_compound_hdr(&xdr
, &hdr
);
1709 status
= encode_putfh(&xdr
, args
->fh
);
1712 status
= encode_getattr_two(&xdr
, FATTR4_WORD0_ACL
, 0);
1713 /* set up reply buffer: */
1714 replen
= (RPC_REPHDRSIZE
+ auth
->au_rslack
+ NFS4_dec_getacl_sz
) << 2;
1715 xdr_inline_pages(&req
->rq_rcv_buf
, replen
,
1716 args
->acl_pages
, args
->acl_pgbase
, args
->acl_len
);
1722 * Encode a WRITE request
1724 static int nfs4_xdr_enc_write(struct rpc_rqst
*req
, uint32_t *p
, struct nfs_writeargs
*args
)
1726 struct xdr_stream xdr
;
1727 struct compound_hdr hdr
= {
1732 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1733 encode_compound_hdr(&xdr
, &hdr
);
1734 status
= encode_putfh(&xdr
, args
->fh
);
1737 status
= encode_write(&xdr
, args
);
1745 static int nfs4_xdr_enc_commit(struct rpc_rqst
*req
, uint32_t *p
, struct nfs_writeargs
*args
)
1747 struct xdr_stream xdr
;
1748 struct compound_hdr hdr
= {
1753 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1754 encode_compound_hdr(&xdr
, &hdr
);
1755 status
= encode_putfh(&xdr
, args
->fh
);
1758 status
= encode_commit(&xdr
, args
);
1766 static int nfs4_xdr_enc_fsinfo(struct rpc_rqst
*req
, uint32_t *p
, struct nfs4_fsinfo_arg
*args
)
1768 struct xdr_stream xdr
;
1769 struct compound_hdr hdr
= {
1774 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1775 encode_compound_hdr(&xdr
, &hdr
);
1776 status
= encode_putfh(&xdr
, args
->fh
);
1778 status
= encode_fsinfo(&xdr
, args
->bitmask
);
1783 * a PATHCONF request
1785 static int nfs4_xdr_enc_pathconf(struct rpc_rqst
*req
, uint32_t *p
, const struct nfs4_pathconf_arg
*args
)
1787 struct xdr_stream xdr
;
1788 struct compound_hdr hdr
= {
1793 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1794 encode_compound_hdr(&xdr
, &hdr
);
1795 status
= encode_putfh(&xdr
, args
->fh
);
1797 status
= encode_getattr_one(&xdr
,
1798 args
->bitmask
[0] & nfs4_pathconf_bitmap
[0]);
1805 static int nfs4_xdr_enc_statfs(struct rpc_rqst
*req
, uint32_t *p
, const struct nfs4_statfs_arg
*args
)
1807 struct xdr_stream xdr
;
1808 struct compound_hdr hdr
= {
1813 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1814 encode_compound_hdr(&xdr
, &hdr
);
1815 status
= encode_putfh(&xdr
, args
->fh
);
1817 status
= encode_getattr_two(&xdr
,
1818 args
->bitmask
[0] & nfs4_statfs_bitmap
[0],
1819 args
->bitmask
[1] & nfs4_statfs_bitmap
[1]);
1824 * GETATTR_BITMAP request
1826 static int nfs4_xdr_enc_server_caps(struct rpc_rqst
*req
, uint32_t *p
, const struct nfs_fh
*fhandle
)
1828 struct xdr_stream xdr
;
1829 struct compound_hdr hdr
= {
1834 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1835 encode_compound_hdr(&xdr
, &hdr
);
1836 status
= encode_putfh(&xdr
, fhandle
);
1838 status
= encode_getattr_one(&xdr
, FATTR4_WORD0_SUPPORTED_ATTRS
|
1839 FATTR4_WORD0_LINK_SUPPORT
|
1840 FATTR4_WORD0_SYMLINK_SUPPORT
|
1841 FATTR4_WORD0_ACLSUPPORT
);
1848 static int nfs4_xdr_enc_renew(struct rpc_rqst
*req
, uint32_t *p
, struct nfs4_client
*clp
)
1850 struct xdr_stream xdr
;
1851 struct compound_hdr hdr
= {
1855 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1856 encode_compound_hdr(&xdr
, &hdr
);
1857 return encode_renew(&xdr
, clp
);
1861 * a SETCLIENTID request
1863 static int nfs4_xdr_enc_setclientid(struct rpc_rqst
*req
, uint32_t *p
, struct nfs4_setclientid
*sc
)
1865 struct xdr_stream xdr
;
1866 struct compound_hdr hdr
= {
1870 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1871 encode_compound_hdr(&xdr
, &hdr
);
1872 return encode_setclientid(&xdr
, sc
);
1876 * a SETCLIENTID_CONFIRM request
1878 static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst
*req
, uint32_t *p
, struct nfs4_client
*clp
)
1880 struct xdr_stream xdr
;
1881 struct compound_hdr hdr
= {
1884 const u32 lease_bitmap
[2] = { FATTR4_WORD0_LEASE_TIME
, 0 };
1887 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1888 encode_compound_hdr(&xdr
, &hdr
);
1889 status
= encode_setclientid_confirm(&xdr
, clp
);
1891 status
= encode_putrootfh(&xdr
);
1893 status
= encode_fsinfo(&xdr
, lease_bitmap
);
1898 * DELEGRETURN request
1900 static int nfs4_xdr_enc_delegreturn(struct rpc_rqst
*req
, uint32_t *p
, const struct nfs4_delegreturnargs
*args
)
1902 struct xdr_stream xdr
;
1903 struct compound_hdr hdr
= {
1908 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1909 encode_compound_hdr(&xdr
, &hdr
);
1910 if ((status
= encode_putfh(&xdr
, args
->fhandle
)) == 0)
1911 status
= encode_delegreturn(&xdr
, args
->stateid
);
1916 * START OF "GENERIC" DECODE ROUTINES.
1917 * These may look a little ugly since they are imported from a "generic"
1918 * set of XDR encode/decode routines which are intended to be shared by
1919 * all of our NFSv4 implementations (OpenBSD, MacOS X...).
1921 * If the pain of reading these is too great, it should be a straightforward
1922 * task to translate them into Linux-specific versions which are more
1923 * consistent with the style used in NFSv2/v3...
1925 #define READ32(x) (x) = ntohl(*p++)
1926 #define READ64(x) do { \
1927 (x) = (u64)ntohl(*p++) << 32; \
1928 (x) |= ntohl(*p++); \
1930 #define READTIME(x) do { \
1932 (x.tv_sec) = ntohl(*p++); \
1933 (x.tv_nsec) = ntohl(*p++); \
1935 #define COPYMEM(x,nbytes) do { \
1936 memcpy((x), p, nbytes); \
1937 p += XDR_QUADLEN(nbytes); \
1940 #define READ_BUF(nbytes) do { \
1941 p = xdr_inline_decode(xdr, nbytes); \
1943 printk(KERN_WARNING "%s: reply buffer overflowed in line %d.", \
1944 __FUNCTION__, __LINE__); \
1949 static int decode_opaque_inline(struct xdr_stream
*xdr
, uint32_t *len
, char **string
)
1956 *string
= (char *)p
;
1960 static int decode_compound_hdr(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1965 READ32(hdr
->status
);
1966 READ32(hdr
->taglen
);
1968 READ_BUF(hdr
->taglen
+ 4);
1969 hdr
->tag
= (char *)p
;
1970 p
+= XDR_QUADLEN(hdr
->taglen
);
1975 static int decode_op_hdr(struct xdr_stream
*xdr
, enum nfs_opnum4 expected
)
1983 if (opnum
!= expected
) {
1985 "nfs4_decode_op_hdr: Server returned operation"
1986 " %d but we issued a request for %d\n",
1991 if (nfserr
!= NFS_OK
)
1992 return -nfs_stat_to_errno(nfserr
);
1997 static int decode_ace(struct xdr_stream
*xdr
, void *ace
, struct nfs4_client
*clp
)
2004 return decode_opaque_inline(xdr
, &strlen
, &str
);
2007 static int decode_attr_bitmap(struct xdr_stream
*xdr
, uint32_t *bitmap
)
2014 bitmap
[0] = bitmap
[1] = 0;
2015 READ_BUF((bmlen
<< 2));
2024 static inline int decode_attr_length(struct xdr_stream
*xdr
, uint32_t *attrlen
, uint32_t **savep
)
2034 static int decode_attr_supported(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *bitmask
)
2036 if (likely(bitmap
[0] & FATTR4_WORD0_SUPPORTED_ATTRS
)) {
2037 decode_attr_bitmap(xdr
, bitmask
);
2038 bitmap
[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS
;
2040 bitmask
[0] = bitmask
[1] = 0;
2041 dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__
, bitmask
[0], bitmask
[1]);
2045 static int decode_attr_type(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *type
)
2050 if (unlikely(bitmap
[0] & (FATTR4_WORD0_TYPE
- 1U)))
2052 if (likely(bitmap
[0] & FATTR4_WORD0_TYPE
)) {
2055 if (*type
< NF4REG
|| *type
> NF4NAMEDATTR
) {
2056 dprintk("%s: bad type %d\n", __FUNCTION__
, *type
);
2059 bitmap
[0] &= ~FATTR4_WORD0_TYPE
;
2061 dprintk("%s: type=0%o\n", __FUNCTION__
, nfs_type2fmt
[*type
].nfs2type
);
2065 static int decode_attr_change(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *change
)
2070 if (unlikely(bitmap
[0] & (FATTR4_WORD0_CHANGE
- 1U)))
2072 if (likely(bitmap
[0] & FATTR4_WORD0_CHANGE
)) {
2075 bitmap
[0] &= ~FATTR4_WORD0_CHANGE
;
2077 dprintk("%s: change attribute=%Lu\n", __FUNCTION__
,
2078 (unsigned long long)*change
);
2082 static int decode_attr_size(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *size
)
2087 if (unlikely(bitmap
[0] & (FATTR4_WORD0_SIZE
- 1U)))
2089 if (likely(bitmap
[0] & FATTR4_WORD0_SIZE
)) {
2092 bitmap
[0] &= ~FATTR4_WORD0_SIZE
;
2094 dprintk("%s: file size=%Lu\n", __FUNCTION__
, (unsigned long long)*size
);
2098 static int decode_attr_link_support(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
2103 if (unlikely(bitmap
[0] & (FATTR4_WORD0_LINK_SUPPORT
- 1U)))
2105 if (likely(bitmap
[0] & FATTR4_WORD0_LINK_SUPPORT
)) {
2108 bitmap
[0] &= ~FATTR4_WORD0_LINK_SUPPORT
;
2110 dprintk("%s: link support=%s\n", __FUNCTION__
, *res
== 0 ? "false" : "true");
2114 static int decode_attr_symlink_support(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
2119 if (unlikely(bitmap
[0] & (FATTR4_WORD0_SYMLINK_SUPPORT
- 1U)))
2121 if (likely(bitmap
[0] & FATTR4_WORD0_SYMLINK_SUPPORT
)) {
2124 bitmap
[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT
;
2126 dprintk("%s: symlink support=%s\n", __FUNCTION__
, *res
== 0 ? "false" : "true");
2130 static int decode_attr_fsid(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct nfs4_fsid
*fsid
)
2136 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FSID
- 1U)))
2138 if (likely(bitmap
[0] & FATTR4_WORD0_FSID
)) {
2140 READ64(fsid
->major
);
2141 READ64(fsid
->minor
);
2142 bitmap
[0] &= ~FATTR4_WORD0_FSID
;
2144 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__
,
2145 (unsigned long long)fsid
->major
,
2146 (unsigned long long)fsid
->minor
);
2150 static int decode_attr_lease_time(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
2155 if (unlikely(bitmap
[0] & (FATTR4_WORD0_LEASE_TIME
- 1U)))
2157 if (likely(bitmap
[0] & FATTR4_WORD0_LEASE_TIME
)) {
2160 bitmap
[0] &= ~FATTR4_WORD0_LEASE_TIME
;
2162 dprintk("%s: file size=%u\n", __FUNCTION__
, (unsigned int)*res
);
2166 static int decode_attr_aclsupport(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
2170 *res
= ACL4_SUPPORT_ALLOW_ACL
|ACL4_SUPPORT_DENY_ACL
;
2171 if (unlikely(bitmap
[0] & (FATTR4_WORD0_ACLSUPPORT
- 1U)))
2173 if (likely(bitmap
[0] & FATTR4_WORD0_ACLSUPPORT
)) {
2176 bitmap
[0] &= ~FATTR4_WORD0_ACLSUPPORT
;
2178 dprintk("%s: ACLs supported=%u\n", __FUNCTION__
, (unsigned int)*res
);
2182 static int decode_attr_fileid(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *fileid
)
2187 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILEID
- 1U)))
2189 if (likely(bitmap
[0] & FATTR4_WORD0_FILEID
)) {
2192 bitmap
[0] &= ~FATTR4_WORD0_FILEID
;
2194 dprintk("%s: fileid=%Lu\n", __FUNCTION__
, (unsigned long long)*fileid
);
2198 static int decode_attr_files_avail(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
2204 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_AVAIL
- 1U)))
2206 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_AVAIL
)) {
2209 bitmap
[0] &= ~FATTR4_WORD0_FILES_AVAIL
;
2211 dprintk("%s: files avail=%Lu\n", __FUNCTION__
, (unsigned long long)*res
);
2215 static int decode_attr_files_free(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
2221 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_FREE
- 1U)))
2223 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_FREE
)) {
2226 bitmap
[0] &= ~FATTR4_WORD0_FILES_FREE
;
2228 dprintk("%s: files free=%Lu\n", __FUNCTION__
, (unsigned long long)*res
);
2232 static int decode_attr_files_total(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
2238 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_TOTAL
- 1U)))
2240 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_TOTAL
)) {
2243 bitmap
[0] &= ~FATTR4_WORD0_FILES_TOTAL
;
2245 dprintk("%s: files total=%Lu\n", __FUNCTION__
, (unsigned long long)*res
);
2249 static int decode_attr_maxfilesize(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
2255 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXFILESIZE
- 1U)))
2257 if (likely(bitmap
[0] & FATTR4_WORD0_MAXFILESIZE
)) {
2260 bitmap
[0] &= ~FATTR4_WORD0_MAXFILESIZE
;
2262 dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__
, (unsigned long long)*res
);
2266 static int decode_attr_maxlink(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *maxlink
)
2272 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXLINK
- 1U)))
2274 if (likely(bitmap
[0] & FATTR4_WORD0_MAXLINK
)) {
2277 bitmap
[0] &= ~FATTR4_WORD0_MAXLINK
;
2279 dprintk("%s: maxlink=%u\n", __FUNCTION__
, *maxlink
);
2283 static int decode_attr_maxname(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *maxname
)
2289 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXNAME
- 1U)))
2291 if (likely(bitmap
[0] & FATTR4_WORD0_MAXNAME
)) {
2294 bitmap
[0] &= ~FATTR4_WORD0_MAXNAME
;
2296 dprintk("%s: maxname=%u\n", __FUNCTION__
, *maxname
);
2300 static int decode_attr_maxread(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
2306 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXREAD
- 1U)))
2308 if (likely(bitmap
[0] & FATTR4_WORD0_MAXREAD
)) {
2312 if (maxread
> 0x7FFFFFFF)
2313 maxread
= 0x7FFFFFFF;
2314 *res
= (uint32_t)maxread
;
2315 bitmap
[0] &= ~FATTR4_WORD0_MAXREAD
;
2317 dprintk("%s: maxread=%lu\n", __FUNCTION__
, (unsigned long)*res
);
2321 static int decode_attr_maxwrite(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
2327 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXWRITE
- 1U)))
2329 if (likely(bitmap
[0] & FATTR4_WORD0_MAXWRITE
)) {
2333 if (maxwrite
> 0x7FFFFFFF)
2334 maxwrite
= 0x7FFFFFFF;
2335 *res
= (uint32_t)maxwrite
;
2336 bitmap
[0] &= ~FATTR4_WORD0_MAXWRITE
;
2338 dprintk("%s: maxwrite=%lu\n", __FUNCTION__
, (unsigned long)*res
);
2342 static int decode_attr_mode(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *mode
)
2347 if (unlikely(bitmap
[1] & (FATTR4_WORD1_MODE
- 1U)))
2349 if (likely(bitmap
[1] & FATTR4_WORD1_MODE
)) {
2353 bitmap
[1] &= ~FATTR4_WORD1_MODE
;
2355 dprintk("%s: file mode=0%o\n", __FUNCTION__
, (unsigned int)*mode
);
2359 static int decode_attr_nlink(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *nlink
)
2364 if (unlikely(bitmap
[1] & (FATTR4_WORD1_NUMLINKS
- 1U)))
2366 if (likely(bitmap
[1] & FATTR4_WORD1_NUMLINKS
)) {
2369 bitmap
[1] &= ~FATTR4_WORD1_NUMLINKS
;
2371 dprintk("%s: nlink=%u\n", __FUNCTION__
, (unsigned int)*nlink
);
2375 static int decode_attr_owner(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct nfs4_client
*clp
, int32_t *uid
)
2380 if (unlikely(bitmap
[1] & (FATTR4_WORD1_OWNER
- 1U)))
2382 if (likely(bitmap
[1] & FATTR4_WORD1_OWNER
)) {
2386 if (len
< XDR_MAX_NETOBJ
) {
2387 if (nfs_map_name_to_uid(clp
, (char *)p
, len
, uid
) != 0)
2388 dprintk("%s: nfs_map_name_to_uid failed!\n",
2391 printk(KERN_WARNING
"%s: name too long (%u)!\n",
2393 bitmap
[1] &= ~FATTR4_WORD1_OWNER
;
2395 dprintk("%s: uid=%d\n", __FUNCTION__
, (int)*uid
);
2399 static int decode_attr_group(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct nfs4_client
*clp
, int32_t *gid
)
2404 if (unlikely(bitmap
[1] & (FATTR4_WORD1_OWNER_GROUP
- 1U)))
2406 if (likely(bitmap
[1] & FATTR4_WORD1_OWNER_GROUP
)) {
2410 if (len
< XDR_MAX_NETOBJ
) {
2411 if (nfs_map_group_to_gid(clp
, (char *)p
, len
, gid
) != 0)
2412 dprintk("%s: nfs_map_group_to_gid failed!\n",
2415 printk(KERN_WARNING
"%s: name too long (%u)!\n",
2417 bitmap
[1] &= ~FATTR4_WORD1_OWNER_GROUP
;
2419 dprintk("%s: gid=%d\n", __FUNCTION__
, (int)*gid
);
2423 static int decode_attr_rdev(struct xdr_stream
*xdr
, uint32_t *bitmap
, dev_t
*rdev
)
2425 uint32_t major
= 0, minor
= 0, *p
;
2428 if (unlikely(bitmap
[1] & (FATTR4_WORD1_RAWDEV
- 1U)))
2430 if (likely(bitmap
[1] & FATTR4_WORD1_RAWDEV
)) {
2436 tmp
= MKDEV(major
, minor
);
2437 if (MAJOR(tmp
) == major
&& MINOR(tmp
) == minor
)
2439 bitmap
[1] &= ~ FATTR4_WORD1_RAWDEV
;
2441 dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__
, major
, minor
);
2445 static int decode_attr_space_avail(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
2451 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_AVAIL
- 1U)))
2453 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_AVAIL
)) {
2456 bitmap
[1] &= ~FATTR4_WORD1_SPACE_AVAIL
;
2458 dprintk("%s: space avail=%Lu\n", __FUNCTION__
, (unsigned long long)*res
);
2462 static int decode_attr_space_free(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
2468 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_FREE
- 1U)))
2470 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_FREE
)) {
2473 bitmap
[1] &= ~FATTR4_WORD1_SPACE_FREE
;
2475 dprintk("%s: space free=%Lu\n", __FUNCTION__
, (unsigned long long)*res
);
2479 static int decode_attr_space_total(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
2485 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_TOTAL
- 1U)))
2487 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_TOTAL
)) {
2490 bitmap
[1] &= ~FATTR4_WORD1_SPACE_TOTAL
;
2492 dprintk("%s: space total=%Lu\n", __FUNCTION__
, (unsigned long long)*res
);
2496 static int decode_attr_space_used(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *used
)
2501 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_USED
- 1U)))
2503 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_USED
)) {
2506 bitmap
[1] &= ~FATTR4_WORD1_SPACE_USED
;
2508 dprintk("%s: space used=%Lu\n", __FUNCTION__
,
2509 (unsigned long long)*used
);
2513 static int decode_attr_time(struct xdr_stream
*xdr
, struct timespec
*time
)
2522 time
->tv_sec
= (time_t)sec
;
2523 time
->tv_nsec
= (long)nsec
;
2527 static int decode_attr_time_access(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec
*time
)
2533 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_ACCESS
- 1U)))
2535 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_ACCESS
)) {
2536 status
= decode_attr_time(xdr
, time
);
2537 bitmap
[1] &= ~FATTR4_WORD1_TIME_ACCESS
;
2539 dprintk("%s: atime=%ld\n", __FUNCTION__
, (long)time
->tv_sec
);
2543 static int decode_attr_time_metadata(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec
*time
)
2549 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_METADATA
- 1U)))
2551 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_METADATA
)) {
2552 status
= decode_attr_time(xdr
, time
);
2553 bitmap
[1] &= ~FATTR4_WORD1_TIME_METADATA
;
2555 dprintk("%s: ctime=%ld\n", __FUNCTION__
, (long)time
->tv_sec
);
2559 static int decode_attr_time_modify(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec
*time
)
2565 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_MODIFY
- 1U)))
2567 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_MODIFY
)) {
2568 status
= decode_attr_time(xdr
, time
);
2569 bitmap
[1] &= ~FATTR4_WORD1_TIME_MODIFY
;
2571 dprintk("%s: mtime=%ld\n", __FUNCTION__
, (long)time
->tv_sec
);
2575 static int verify_attr_len(struct xdr_stream
*xdr
, uint32_t *savep
, uint32_t attrlen
)
2577 unsigned int attrwords
= XDR_QUADLEN(attrlen
);
2578 unsigned int nwords
= xdr
->p
- savep
;
2580 if (unlikely(attrwords
!= nwords
)) {
2581 printk(KERN_WARNING
"%s: server returned incorrect attribute length: %u %c %u\n",
2584 (attrwords
< nwords
) ? '<' : '>',
2591 static int decode_change_info(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
2596 READ32(cinfo
->atomic
);
2597 READ64(cinfo
->before
);
2598 READ64(cinfo
->after
);
2602 static int decode_access(struct xdr_stream
*xdr
, struct nfs4_accessres
*access
)
2608 status
= decode_op_hdr(xdr
, OP_ACCESS
);
2614 access
->supported
= supp
;
2615 access
->access
= acc
;
2619 static int decode_close(struct xdr_stream
*xdr
, struct nfs_closeres
*res
)
2624 status
= decode_op_hdr(xdr
, OP_CLOSE
);
2627 READ_BUF(sizeof(res
->stateid
.data
));
2628 COPYMEM(res
->stateid
.data
, sizeof(res
->stateid
.data
));
2632 static int decode_commit(struct xdr_stream
*xdr
, struct nfs_writeres
*res
)
2637 status
= decode_op_hdr(xdr
, OP_COMMIT
);
2641 COPYMEM(res
->verf
->verifier
, 8);
2645 static int decode_create(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
2651 status
= decode_op_hdr(xdr
, OP_CREATE
);
2654 if ((status
= decode_change_info(xdr
, cinfo
)))
2658 READ_BUF(bmlen
<< 2);
2662 static int decode_server_caps(struct xdr_stream
*xdr
, struct nfs4_server_caps_res
*res
)
2669 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
2671 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
2673 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
2675 if ((status
= decode_attr_supported(xdr
, bitmap
, res
->attr_bitmask
)) != 0)
2677 if ((status
= decode_attr_link_support(xdr
, bitmap
, &res
->has_links
)) != 0)
2679 if ((status
= decode_attr_symlink_support(xdr
, bitmap
, &res
->has_symlinks
)) != 0)
2681 if ((status
= decode_attr_aclsupport(xdr
, bitmap
, &res
->acl_bitmask
)) != 0)
2683 status
= verify_attr_len(xdr
, savep
, attrlen
);
2686 printk(KERN_NOTICE
"%s: xdr error %d!\n", __FUNCTION__
, -status
);
2690 static int decode_statfs(struct xdr_stream
*xdr
, struct nfs_fsstat
*fsstat
)
2697 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
2699 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
2701 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
2704 if ((status
= decode_attr_files_avail(xdr
, bitmap
, &fsstat
->afiles
)) != 0)
2706 if ((status
= decode_attr_files_free(xdr
, bitmap
, &fsstat
->ffiles
)) != 0)
2708 if ((status
= decode_attr_files_total(xdr
, bitmap
, &fsstat
->tfiles
)) != 0)
2710 if ((status
= decode_attr_space_avail(xdr
, bitmap
, &fsstat
->abytes
)) != 0)
2712 if ((status
= decode_attr_space_free(xdr
, bitmap
, &fsstat
->fbytes
)) != 0)
2714 if ((status
= decode_attr_space_total(xdr
, bitmap
, &fsstat
->tbytes
)) != 0)
2717 status
= verify_attr_len(xdr
, savep
, attrlen
);
2720 printk(KERN_NOTICE
"%s: xdr error %d!\n", __FUNCTION__
, -status
);
2724 static int decode_pathconf(struct xdr_stream
*xdr
, struct nfs_pathconf
*pathconf
)
2731 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
2733 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
2735 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
2738 if ((status
= decode_attr_maxlink(xdr
, bitmap
, &pathconf
->max_link
)) != 0)
2740 if ((status
= decode_attr_maxname(xdr
, bitmap
, &pathconf
->max_namelen
)) != 0)
2743 status
= verify_attr_len(xdr
, savep
, attrlen
);
2746 printk(KERN_NOTICE
"%s: xdr error %d!\n", __FUNCTION__
, -status
);
2750 static int decode_getfattr(struct xdr_stream
*xdr
, struct nfs_fattr
*fattr
, const struct nfs_server
*server
)
2756 int status
, fmode
= 0;
2758 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
2760 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
2763 fattr
->bitmap
[0] = bitmap
[0];
2764 fattr
->bitmap
[1] = bitmap
[1];
2766 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
2770 if ((status
= decode_attr_type(xdr
, bitmap
, &type
)) != 0)
2772 fattr
->type
= nfs_type2fmt
[type
].nfs2type
;
2773 fmode
= nfs_type2fmt
[type
].mode
;
2775 if ((status
= decode_attr_change(xdr
, bitmap
, &fattr
->change_attr
)) != 0)
2777 if ((status
= decode_attr_size(xdr
, bitmap
, &fattr
->size
)) != 0)
2779 if ((status
= decode_attr_fsid(xdr
, bitmap
, &fattr
->fsid_u
.nfs4
)) != 0)
2781 if ((status
= decode_attr_fileid(xdr
, bitmap
, &fattr
->fileid
)) != 0)
2783 if ((status
= decode_attr_mode(xdr
, bitmap
, &fattr
->mode
)) != 0)
2785 fattr
->mode
|= fmode
;
2786 if ((status
= decode_attr_nlink(xdr
, bitmap
, &fattr
->nlink
)) != 0)
2788 if ((status
= decode_attr_owner(xdr
, bitmap
, server
->nfs4_state
, &fattr
->uid
)) != 0)
2790 if ((status
= decode_attr_group(xdr
, bitmap
, server
->nfs4_state
, &fattr
->gid
)) != 0)
2792 if ((status
= decode_attr_rdev(xdr
, bitmap
, &fattr
->rdev
)) != 0)
2794 if ((status
= decode_attr_space_used(xdr
, bitmap
, &fattr
->du
.nfs3
.used
)) != 0)
2796 if ((status
= decode_attr_time_access(xdr
, bitmap
, &fattr
->atime
)) != 0)
2798 if ((status
= decode_attr_time_metadata(xdr
, bitmap
, &fattr
->ctime
)) != 0)
2800 if ((status
= decode_attr_time_modify(xdr
, bitmap
, &fattr
->mtime
)) != 0)
2802 if ((status
= verify_attr_len(xdr
, savep
, attrlen
)) == 0) {
2803 fattr
->valid
= NFS_ATTR_FATTR
| NFS_ATTR_FATTR_V3
| NFS_ATTR_FATTR_V4
;
2804 fattr
->timestamp
= jiffies
;
2808 printk(KERN_NOTICE
"%s: xdr error %d!\n", __FUNCTION__
, -status
);
2813 static int decode_fsinfo(struct xdr_stream
*xdr
, struct nfs_fsinfo
*fsinfo
)
2816 uint32_t attrlen
, bitmap
[2];
2819 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
2821 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
2823 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
2826 fsinfo
->rtmult
= fsinfo
->wtmult
= 512; /* ??? */
2828 if ((status
= decode_attr_lease_time(xdr
, bitmap
, &fsinfo
->lease_time
)) != 0)
2830 if ((status
= decode_attr_maxfilesize(xdr
, bitmap
, &fsinfo
->maxfilesize
)) != 0)
2832 if ((status
= decode_attr_maxread(xdr
, bitmap
, &fsinfo
->rtmax
)) != 0)
2834 fsinfo
->rtpref
= fsinfo
->dtpref
= fsinfo
->rtmax
;
2835 if ((status
= decode_attr_maxwrite(xdr
, bitmap
, &fsinfo
->wtmax
)) != 0)
2837 fsinfo
->wtpref
= fsinfo
->wtmax
;
2839 status
= verify_attr_len(xdr
, savep
, attrlen
);
2842 printk(KERN_NOTICE
"%s: xdr error %d!\n", __FUNCTION__
, -status
);
2846 static int decode_getfh(struct xdr_stream
*xdr
, struct nfs_fh
*fh
)
2852 status
= decode_op_hdr(xdr
, OP_GETFH
);
2855 /* Zero handle first to allow comparisons */
2856 memset(fh
, 0, sizeof(*fh
));
2860 if (len
> NFS4_FHSIZE
)
2864 COPYMEM(fh
->data
, len
);
2868 static int decode_link(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
2872 status
= decode_op_hdr(xdr
, OP_LINK
);
2875 return decode_change_info(xdr
, cinfo
);
2879 * We create the owner, so we know a proper owner.id length is 4.
2881 static int decode_lock_denied (struct xdr_stream
*xdr
, struct nfs_lock_denied
*denied
)
2887 READ64(denied
->offset
);
2888 READ64(denied
->length
);
2889 READ32(denied
->type
);
2890 READ64(denied
->owner
.clientid
);
2894 READ32(denied
->owner
.id
);
2895 return -NFS4ERR_DENIED
;
2898 static int decode_lock(struct xdr_stream
*xdr
, struct nfs_lockres
*res
)
2903 status
= decode_op_hdr(xdr
, OP_LOCK
);
2905 READ_BUF(sizeof(res
->u
.stateid
.data
));
2906 COPYMEM(res
->u
.stateid
.data
, sizeof(res
->u
.stateid
.data
));
2907 } else if (status
== -NFS4ERR_DENIED
)
2908 return decode_lock_denied(xdr
, &res
->u
.denied
);
2912 static int decode_lockt(struct xdr_stream
*xdr
, struct nfs_lockres
*res
)
2915 status
= decode_op_hdr(xdr
, OP_LOCKT
);
2916 if (status
== -NFS4ERR_DENIED
)
2917 return decode_lock_denied(xdr
, &res
->u
.denied
);
2921 static int decode_locku(struct xdr_stream
*xdr
, struct nfs_lockres
*res
)
2926 status
= decode_op_hdr(xdr
, OP_LOCKU
);
2928 READ_BUF(sizeof(res
->u
.stateid
.data
));
2929 COPYMEM(res
->u
.stateid
.data
, sizeof(res
->u
.stateid
.data
));
2934 static int decode_lookup(struct xdr_stream
*xdr
)
2936 return decode_op_hdr(xdr
, OP_LOOKUP
);
2939 /* This is too sick! */
2940 static int decode_space_limit(struct xdr_stream
*xdr
, u64
*maxsize
)
2943 uint32_t limit_type
, nblocks
, blocksize
;
2947 switch (limit_type
) {
2954 *maxsize
= (uint64_t)nblocks
* (uint64_t)blocksize
;
2959 static int decode_delegation(struct xdr_stream
*xdr
, struct nfs_openres
*res
)
2962 uint32_t delegation_type
;
2965 READ32(delegation_type
);
2966 if (delegation_type
== NFS4_OPEN_DELEGATE_NONE
) {
2967 res
->delegation_type
= 0;
2971 COPYMEM(res
->delegation
.data
, sizeof(res
->delegation
.data
));
2972 READ32(res
->do_recall
);
2973 switch (delegation_type
) {
2974 case NFS4_OPEN_DELEGATE_READ
:
2975 res
->delegation_type
= FMODE_READ
;
2977 case NFS4_OPEN_DELEGATE_WRITE
:
2978 res
->delegation_type
= FMODE_WRITE
|FMODE_READ
;
2979 if (decode_space_limit(xdr
, &res
->maxsize
) < 0)
2982 return decode_ace(xdr
, NULL
, res
->server
->nfs4_state
);
2985 static int decode_open(struct xdr_stream
*xdr
, struct nfs_openres
*res
)
2991 status
= decode_op_hdr(xdr
, OP_OPEN
);
2994 READ_BUF(sizeof(res
->stateid
.data
));
2995 COPYMEM(res
->stateid
.data
, sizeof(res
->stateid
.data
));
2997 decode_change_info(xdr
, &res
->cinfo
);
3000 READ32(res
->rflags
);
3005 READ_BUF(bmlen
<< 2);
3007 return decode_delegation(xdr
, res
);
3009 printk(KERN_NOTICE
"%s: xdr error!\n", __FUNCTION__
);
3013 static int decode_open_confirm(struct xdr_stream
*xdr
, struct nfs_open_confirmres
*res
)
3018 status
= decode_op_hdr(xdr
, OP_OPEN_CONFIRM
);
3021 READ_BUF(sizeof(res
->stateid
.data
));
3022 COPYMEM(res
->stateid
.data
, sizeof(res
->stateid
.data
));
3026 static int decode_open_downgrade(struct xdr_stream
*xdr
, struct nfs_closeres
*res
)
3031 status
= decode_op_hdr(xdr
, OP_OPEN_DOWNGRADE
);
3034 READ_BUF(sizeof(res
->stateid
.data
));
3035 COPYMEM(res
->stateid
.data
, sizeof(res
->stateid
.data
));
3039 static int decode_putfh(struct xdr_stream
*xdr
)
3041 return decode_op_hdr(xdr
, OP_PUTFH
);
3044 static int decode_putrootfh(struct xdr_stream
*xdr
)
3046 return decode_op_hdr(xdr
, OP_PUTROOTFH
);
3049 static int decode_read(struct xdr_stream
*xdr
, struct rpc_rqst
*req
, struct nfs_readres
*res
)
3051 struct kvec
*iov
= req
->rq_rcv_buf
.head
;
3053 uint32_t count
, eof
, recvd
, hdrlen
;
3056 status
= decode_op_hdr(xdr
, OP_READ
);
3062 hdrlen
= (u8
*) p
- (u8
*) iov
->iov_base
;
3063 recvd
= req
->rq_rcv_buf
.len
- hdrlen
;
3064 if (count
> recvd
) {
3065 printk(KERN_WARNING
"NFS: server cheating in read reply: "
3066 "count %u > recvd %u\n", count
, recvd
);
3070 xdr_read_pages(xdr
, count
);
3076 static int decode_readdir(struct xdr_stream
*xdr
, struct rpc_rqst
*req
, struct nfs4_readdir_res
*readdir
)
3078 struct xdr_buf
*rcvbuf
= &req
->rq_rcv_buf
;
3079 struct page
*page
= *rcvbuf
->pages
;
3080 struct kvec
*iov
= rcvbuf
->head
;
3081 unsigned int nr
, pglen
= rcvbuf
->page_len
;
3082 uint32_t *end
, *entry
, *p
, *kaddr
;
3083 uint32_t len
, attrlen
;
3084 int hdrlen
, recvd
, status
;
3086 status
= decode_op_hdr(xdr
, OP_READDIR
);
3090 COPYMEM(readdir
->verifier
.data
, 8);
3091 dprintk("%s: verifier = 0x%x%x\n",
3093 ((u32
*)readdir
->verifier
.data
)[0],
3094 ((u32
*)readdir
->verifier
.data
)[1]);
3097 hdrlen
= (char *) p
- (char *) iov
->iov_base
;
3098 recvd
= rcvbuf
->len
- hdrlen
;
3101 xdr_read_pages(xdr
, pglen
);
3103 BUG_ON(pglen
+ readdir
->pgbase
> PAGE_CACHE_SIZE
);
3104 kaddr
= p
= (uint32_t *) kmap_atomic(page
, KM_USER0
);
3105 end
= (uint32_t *) ((char *)p
+ pglen
+ readdir
->pgbase
);
3107 for (nr
= 0; *p
++; nr
++) {
3110 dprintk("cookie = %Lu, ", *((unsigned long long *)p
));
3111 p
+= 2; /* cookie */
3112 len
= ntohl(*p
++); /* filename length */
3113 if (len
> NFS4_MAXNAMLEN
) {
3114 printk(KERN_WARNING
"NFS: giant filename in readdir (len 0x%x)\n", len
);
3117 dprintk("filename = %*s\n", len
, (char *)p
);
3118 p
+= XDR_QUADLEN(len
);
3121 len
= ntohl(*p
++); /* bitmap length */
3125 attrlen
= XDR_QUADLEN(ntohl(*p
++));
3126 p
+= attrlen
; /* attributes */
3131 if (!nr
&& (entry
[0] != 0 || entry
[1] == 0))
3134 kunmap_atomic(kaddr
, KM_USER0
);
3137 dprintk("%s: short packet at entry %d\n", __FUNCTION__
, nr
);
3138 entry
[0] = entry
[1] = 0;
3139 /* truncate listing ? */
3141 printk(KERN_NOTICE
"NFS: readdir reply truncated!\n");
3146 kunmap_atomic(kaddr
, KM_USER0
);
3147 return -errno_NFSERR_IO
;
3150 static int decode_readlink(struct xdr_stream
*xdr
, struct rpc_rqst
*req
)
3152 struct xdr_buf
*rcvbuf
= &req
->rq_rcv_buf
;
3153 struct kvec
*iov
= rcvbuf
->head
;
3154 int hdrlen
, len
, recvd
;
3159 status
= decode_op_hdr(xdr
, OP_READLINK
);
3163 /* Convert length of symlink */
3166 if (len
>= rcvbuf
->page_len
|| len
<= 0) {
3167 dprintk(KERN_WARNING
"nfs: server returned giant symlink!\n");
3168 return -ENAMETOOLONG
;
3170 hdrlen
= (char *) xdr
->p
- (char *) iov
->iov_base
;
3171 recvd
= req
->rq_rcv_buf
.len
- hdrlen
;
3173 printk(KERN_WARNING
"NFS: server cheating in readlink reply: "
3174 "count %u > recvd %u\n", len
, recvd
);
3177 xdr_read_pages(xdr
, len
);
3179 * The XDR encode routine has set things up so that
3180 * the link text will be copied directly into the
3181 * buffer. We just have to do overflow-checking,
3182 * and and null-terminate the text (the VFS expects
3183 * null-termination).
3185 kaddr
= (char *)kmap_atomic(rcvbuf
->pages
[0], KM_USER0
);
3186 kaddr
[len
+rcvbuf
->page_base
] = '\0';
3187 kunmap_atomic(kaddr
, KM_USER0
);
3191 static int decode_remove(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
3195 status
= decode_op_hdr(xdr
, OP_REMOVE
);
3198 status
= decode_change_info(xdr
, cinfo
);
3203 static int decode_rename(struct xdr_stream
*xdr
, struct nfs4_change_info
*old_cinfo
,
3204 struct nfs4_change_info
*new_cinfo
)
3208 status
= decode_op_hdr(xdr
, OP_RENAME
);
3211 if ((status
= decode_change_info(xdr
, old_cinfo
)))
3213 status
= decode_change_info(xdr
, new_cinfo
);
3218 static int decode_renew(struct xdr_stream
*xdr
)
3220 return decode_op_hdr(xdr
, OP_RENEW
);
3223 static int decode_getacl(struct xdr_stream
*xdr
, struct rpc_rqst
*req
,
3229 struct kvec
*iov
= req
->rq_rcv_buf
.head
;
3233 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
3235 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
3237 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
3240 if (unlikely(bitmap
[0] & (FATTR4_WORD0_ACL
- 1U)))
3242 if (likely(bitmap
[0] & FATTR4_WORD0_ACL
)) {
3245 /* We ignore &savep and don't do consistency checks on
3246 * the attr length. Let userspace figure it out.... */
3247 hdrlen
= (u8
*)xdr
->p
- (u8
*)iov
->iov_base
;
3248 recvd
= req
->rq_rcv_buf
.len
- hdrlen
;
3249 if (attrlen
> recvd
) {
3250 printk(KERN_WARNING
"NFS: server cheating in getattr"
3251 " acl reply: attrlen %u > recvd %u\n",
3255 if (attrlen
<= *acl_len
)
3256 xdr_read_pages(xdr
, attrlen
);
3259 status
= -EOPNOTSUPP
;
3266 decode_savefh(struct xdr_stream
*xdr
)
3268 return decode_op_hdr(xdr
, OP_SAVEFH
);
3271 static int decode_setattr(struct xdr_stream
*xdr
, struct nfs_setattrres
*res
)
3278 status
= decode_op_hdr(xdr
, OP_SETATTR
);
3283 READ_BUF(bmlen
<< 2);
3287 static int decode_setclientid(struct xdr_stream
*xdr
, struct nfs4_client
*clp
)
3295 if (opnum
!= OP_SETCLIENTID
) {
3297 "nfs4_decode_setclientid: Server returned operation"
3302 if (nfserr
== NFS_OK
) {
3303 READ_BUF(8 + sizeof(clp
->cl_confirm
.data
));
3304 READ64(clp
->cl_clientid
);
3305 COPYMEM(clp
->cl_confirm
.data
, sizeof(clp
->cl_confirm
.data
));
3306 } else if (nfserr
== NFSERR_CLID_INUSE
) {
3309 /* skip netid string */
3314 /* skip uaddr string */
3318 return -NFSERR_CLID_INUSE
;
3320 return -nfs_stat_to_errno(nfserr
);
3325 static int decode_setclientid_confirm(struct xdr_stream
*xdr
)
3327 return decode_op_hdr(xdr
, OP_SETCLIENTID_CONFIRM
);
3330 static int decode_write(struct xdr_stream
*xdr
, struct nfs_writeres
*res
)
3335 status
= decode_op_hdr(xdr
, OP_WRITE
);
3341 READ32(res
->verf
->committed
);
3342 COPYMEM(res
->verf
->verifier
, 8);
3346 static int decode_delegreturn(struct xdr_stream
*xdr
)
3348 return decode_op_hdr(xdr
, OP_DELEGRETURN
);
3352 * Decode OPEN_DOWNGRADE response
3354 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs_closeres
*res
)
3356 struct xdr_stream xdr
;
3357 struct compound_hdr hdr
;
3360 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3361 status
= decode_compound_hdr(&xdr
, &hdr
);
3364 status
= decode_putfh(&xdr
);
3367 status
= decode_open_downgrade(&xdr
, res
);
3373 * END OF "GENERIC" DECODE ROUTINES.
3377 * Decode ACCESS response
3379 static int nfs4_xdr_dec_access(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs4_accessres
*res
)
3381 struct xdr_stream xdr
;
3382 struct compound_hdr hdr
;
3385 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3386 if ((status
= decode_compound_hdr(&xdr
, &hdr
)) != 0)
3388 if ((status
= decode_putfh(&xdr
)) == 0)
3389 status
= decode_access(&xdr
, res
);
3395 * Decode LOOKUP response
3397 static int nfs4_xdr_dec_lookup(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs4_lookup_res
*res
)
3399 struct xdr_stream xdr
;
3400 struct compound_hdr hdr
;
3403 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3404 if ((status
= decode_compound_hdr(&xdr
, &hdr
)) != 0)
3406 if ((status
= decode_putfh(&xdr
)) != 0)
3408 if ((status
= decode_lookup(&xdr
)) != 0)
3410 if ((status
= decode_getfh(&xdr
, res
->fh
)) != 0)
3412 status
= decode_getfattr(&xdr
, res
->fattr
, res
->server
);
3418 * Decode LOOKUP_ROOT response
3420 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs4_lookup_res
*res
)
3422 struct xdr_stream xdr
;
3423 struct compound_hdr hdr
;
3426 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3427 if ((status
= decode_compound_hdr(&xdr
, &hdr
)) != 0)
3429 if ((status
= decode_putrootfh(&xdr
)) != 0)
3431 if ((status
= decode_getfh(&xdr
, res
->fh
)) == 0)
3432 status
= decode_getfattr(&xdr
, res
->fattr
, res
->server
);
3438 * Decode REMOVE response
3440 static int nfs4_xdr_dec_remove(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs4_change_info
*cinfo
)
3442 struct xdr_stream xdr
;
3443 struct compound_hdr hdr
;
3446 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3447 if ((status
= decode_compound_hdr(&xdr
, &hdr
)) != 0)
3449 if ((status
= decode_putfh(&xdr
)) == 0)
3450 status
= decode_remove(&xdr
, cinfo
);
3456 * Decode RENAME response
3458 static int nfs4_xdr_dec_rename(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs4_rename_res
*res
)
3460 struct xdr_stream xdr
;
3461 struct compound_hdr hdr
;
3464 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3465 if ((status
= decode_compound_hdr(&xdr
, &hdr
)) != 0)
3467 if ((status
= decode_putfh(&xdr
)) != 0)
3469 if ((status
= decode_savefh(&xdr
)) != 0)
3471 if ((status
= decode_putfh(&xdr
)) != 0)
3473 status
= decode_rename(&xdr
, &res
->old_cinfo
, &res
->new_cinfo
);
3479 * Decode LINK response
3481 static int nfs4_xdr_dec_link(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs4_change_info
*cinfo
)
3483 struct xdr_stream xdr
;
3484 struct compound_hdr hdr
;
3487 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3488 if ((status
= decode_compound_hdr(&xdr
, &hdr
)) != 0)
3490 if ((status
= decode_putfh(&xdr
)) != 0)
3492 if ((status
= decode_savefh(&xdr
)) != 0)
3494 if ((status
= decode_putfh(&xdr
)) != 0)
3496 status
= decode_link(&xdr
, cinfo
);
3502 * Decode CREATE response
3504 static int nfs4_xdr_dec_create(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs4_create_res
*res
)
3506 struct xdr_stream xdr
;
3507 struct compound_hdr hdr
;
3510 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3511 if ((status
= decode_compound_hdr(&xdr
, &hdr
)) != 0)
3513 if ((status
= decode_putfh(&xdr
)) != 0)
3515 if ((status
= decode_create(&xdr
,&res
->dir_cinfo
)) != 0)
3517 if ((status
= decode_getfh(&xdr
, res
->fh
)) != 0)
3519 status
= decode_getfattr(&xdr
, res
->fattr
, res
->server
);
3520 if (status
== NFS4ERR_DELAY
)
3527 * Decode SYMLINK response
3529 static int nfs4_xdr_dec_symlink(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs4_create_res
*res
)
3531 return nfs4_xdr_dec_create(rqstp
, p
, res
);
3535 * Decode GETATTR response
3537 static int nfs4_xdr_dec_getattr(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs4_getattr_res
*res
)
3539 struct xdr_stream xdr
;
3540 struct compound_hdr hdr
;
3543 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3544 status
= decode_compound_hdr(&xdr
, &hdr
);
3547 status
= decode_putfh(&xdr
);
3550 status
= decode_getfattr(&xdr
, res
->fattr
, res
->server
);
3557 * Encode an SETACL request
3560 nfs4_xdr_enc_setacl(struct rpc_rqst
*req
, uint32_t *p
, struct nfs_setaclargs
*args
)
3562 struct xdr_stream xdr
;
3563 struct compound_hdr hdr
= {
3568 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
3569 encode_compound_hdr(&xdr
, &hdr
);
3570 status
= encode_putfh(&xdr
, args
->fh
);
3573 status
= encode_setacl(&xdr
, args
);
3578 * Decode SETACL response
3581 nfs4_xdr_dec_setacl(struct rpc_rqst
*rqstp
, uint32_t *p
, void *res
)
3583 struct xdr_stream xdr
;
3584 struct compound_hdr hdr
;
3587 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3588 status
= decode_compound_hdr(&xdr
, &hdr
);
3591 status
= decode_putfh(&xdr
);
3594 status
= decode_setattr(&xdr
, res
);
3600 * Decode GETACL response
3603 nfs4_xdr_dec_getacl(struct rpc_rqst
*rqstp
, uint32_t *p
, size_t *acl_len
)
3605 struct xdr_stream xdr
;
3606 struct compound_hdr hdr
;
3609 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3610 status
= decode_compound_hdr(&xdr
, &hdr
);
3613 status
= decode_putfh(&xdr
);
3616 status
= decode_getacl(&xdr
, rqstp
, acl_len
);
3623 * Decode CLOSE response
3625 static int nfs4_xdr_dec_close(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs_closeres
*res
)
3627 struct xdr_stream xdr
;
3628 struct compound_hdr hdr
;
3631 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3632 status
= decode_compound_hdr(&xdr
, &hdr
);
3635 status
= decode_putfh(&xdr
);
3638 status
= decode_close(&xdr
, res
);
3644 * Decode OPEN response
3646 static int nfs4_xdr_dec_open(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs_openres
*res
)
3648 struct xdr_stream xdr
;
3649 struct compound_hdr hdr
;
3652 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3653 status
= decode_compound_hdr(&xdr
, &hdr
);
3656 status
= decode_putfh(&xdr
);
3659 status
= decode_open(&xdr
, res
);
3662 status
= decode_getfh(&xdr
, &res
->fh
);
3665 status
= decode_getfattr(&xdr
, res
->f_attr
, res
->server
);
3666 if (status
== NFS4ERR_DELAY
)
3673 * Decode OPEN_CONFIRM response
3675 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs_open_confirmres
*res
)
3677 struct xdr_stream xdr
;
3678 struct compound_hdr hdr
;
3681 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3682 status
= decode_compound_hdr(&xdr
, &hdr
);
3685 status
= decode_putfh(&xdr
);
3688 status
= decode_open_confirm(&xdr
, res
);
3694 * Decode OPEN response
3696 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs_openres
*res
)
3698 struct xdr_stream xdr
;
3699 struct compound_hdr hdr
;
3702 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3703 status
= decode_compound_hdr(&xdr
, &hdr
);
3706 status
= decode_putfh(&xdr
);
3709 status
= decode_open(&xdr
, res
);
3715 * Decode SETATTR response
3717 static int nfs4_xdr_dec_setattr(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs_setattrres
*res
)
3719 struct xdr_stream xdr
;
3720 struct compound_hdr hdr
;
3723 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3724 status
= decode_compound_hdr(&xdr
, &hdr
);
3727 status
= decode_putfh(&xdr
);
3730 status
= decode_setattr(&xdr
, res
);
3733 status
= decode_getfattr(&xdr
, res
->fattr
, res
->server
);
3734 if (status
== NFS4ERR_DELAY
)
3741 * Decode LOCK response
3743 static int nfs4_xdr_dec_lock(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs_lockres
*res
)
3745 struct xdr_stream xdr
;
3746 struct compound_hdr hdr
;
3749 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3750 status
= decode_compound_hdr(&xdr
, &hdr
);
3753 status
= decode_putfh(&xdr
);
3756 status
= decode_lock(&xdr
, res
);
3762 * Decode LOCKT response
3764 static int nfs4_xdr_dec_lockt(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs_lockres
*res
)
3766 struct xdr_stream xdr
;
3767 struct compound_hdr hdr
;
3770 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3771 status
= decode_compound_hdr(&xdr
, &hdr
);
3774 status
= decode_putfh(&xdr
);
3777 status
= decode_lockt(&xdr
, res
);
3783 * Decode LOCKU response
3785 static int nfs4_xdr_dec_locku(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs_lockres
*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_locku(&xdr
, res
);
3804 * Decode READLINK response
3806 static int nfs4_xdr_dec_readlink(struct rpc_rqst
*rqstp
, uint32_t *p
, void *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_readlink(&xdr
, rqstp
);
3825 * Decode READDIR response
3827 static int nfs4_xdr_dec_readdir(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs4_readdir_res
*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_readdir(&xdr
, rqstp
, res
);
3846 * Decode Read response
3848 static int nfs4_xdr_dec_read(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs_readres
*res
)
3850 struct xdr_stream xdr
;
3851 struct compound_hdr hdr
;
3854 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3855 status
= decode_compound_hdr(&xdr
, &hdr
);
3858 status
= decode_putfh(&xdr
);
3861 status
= decode_read(&xdr
, rqstp
, res
);
3863 status
= res
->count
;
3869 * Decode WRITE response
3871 static int nfs4_xdr_dec_write(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs_writeres
*res
)
3873 struct xdr_stream xdr
;
3874 struct compound_hdr hdr
;
3877 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3878 status
= decode_compound_hdr(&xdr
, &hdr
);
3881 status
= decode_putfh(&xdr
);
3884 status
= decode_write(&xdr
, res
);
3886 status
= res
->count
;
3892 * Decode COMMIT response
3894 static int nfs4_xdr_dec_commit(struct rpc_rqst
*rqstp
, uint32_t *p
, struct nfs_writeres
*res
)
3896 struct xdr_stream xdr
;
3897 struct compound_hdr hdr
;
3900 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3901 status
= decode_compound_hdr(&xdr
, &hdr
);
3904 status
= decode_putfh(&xdr
);
3907 status
= decode_commit(&xdr
, res
);
3915 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst
*req
, uint32_t *p
, struct nfs_fsinfo
*fsinfo
)
3917 struct xdr_stream xdr
;
3918 struct compound_hdr hdr
;
3921 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
3922 status
= decode_compound_hdr(&xdr
, &hdr
);
3924 status
= decode_putfh(&xdr
);
3926 status
= decode_fsinfo(&xdr
, fsinfo
);
3928 status
= -nfs_stat_to_errno(hdr
.status
);
3935 static int nfs4_xdr_dec_pathconf(struct rpc_rqst
*req
, uint32_t *p
, struct nfs_pathconf
*pathconf
)
3937 struct xdr_stream xdr
;
3938 struct compound_hdr hdr
;
3941 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
3942 status
= decode_compound_hdr(&xdr
, &hdr
);
3944 status
= decode_putfh(&xdr
);
3946 status
= decode_pathconf(&xdr
, pathconf
);
3953 static int nfs4_xdr_dec_statfs(struct rpc_rqst
*req
, uint32_t *p
, struct nfs_fsstat
*fsstat
)
3955 struct xdr_stream xdr
;
3956 struct compound_hdr hdr
;
3959 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
3960 status
= decode_compound_hdr(&xdr
, &hdr
);
3962 status
= decode_putfh(&xdr
);
3964 status
= decode_statfs(&xdr
, fsstat
);
3969 * GETATTR_BITMAP request
3971 static int nfs4_xdr_dec_server_caps(struct rpc_rqst
*req
, uint32_t *p
, struct nfs4_server_caps_res
*res
)
3973 struct xdr_stream xdr
;
3974 struct compound_hdr hdr
;
3977 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
3978 if ((status
= decode_compound_hdr(&xdr
, &hdr
)) != 0)
3980 if ((status
= decode_putfh(&xdr
)) != 0)
3982 status
= decode_server_caps(&xdr
, res
);
3988 * Decode RENEW response
3990 static int nfs4_xdr_dec_renew(struct rpc_rqst
*rqstp
, uint32_t *p
, void *dummy
)
3992 struct xdr_stream xdr
;
3993 struct compound_hdr hdr
;
3996 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
3997 status
= decode_compound_hdr(&xdr
, &hdr
);
3999 status
= decode_renew(&xdr
);
4004 * a SETCLIENTID request
4006 static int nfs4_xdr_dec_setclientid(struct rpc_rqst
*req
, uint32_t *p
,
4007 struct nfs4_client
*clp
)
4009 struct xdr_stream xdr
;
4010 struct compound_hdr hdr
;
4013 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
4014 status
= decode_compound_hdr(&xdr
, &hdr
);
4016 status
= decode_setclientid(&xdr
, clp
);
4018 status
= -nfs_stat_to_errno(hdr
.status
);
4023 * a SETCLIENTID_CONFIRM request
4025 static int nfs4_xdr_dec_setclientid_confirm(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_setclientid_confirm(&xdr
);
4036 status
= decode_putrootfh(&xdr
);
4038 status
= decode_fsinfo(&xdr
, fsinfo
);
4040 status
= -nfs_stat_to_errno(hdr
.status
);
4045 * DELEGRETURN request
4047 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst
*rqstp
, uint32_t *p
, void *dummy
)
4049 struct xdr_stream xdr
;
4050 struct compound_hdr hdr
;
4053 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4054 status
= decode_compound_hdr(&xdr
, &hdr
);
4056 status
= decode_putfh(&xdr
);
4058 status
= decode_delegreturn(&xdr
);
4063 uint32_t *nfs4_decode_dirent(uint32_t *p
, struct nfs_entry
*entry
, int plus
)
4065 uint32_t bitmap
[2] = {0};
4070 return ERR_PTR(-EAGAIN
);
4072 return ERR_PTR(-EBADCOOKIE
);
4075 entry
->prev_cookie
= entry
->cookie
;
4076 p
= xdr_decode_hyper(p
, &entry
->cookie
);
4077 entry
->len
= ntohl(*p
++);
4078 entry
->name
= (const char *) p
;
4079 p
+= XDR_QUADLEN(entry
->len
);
4082 * In case the server doesn't return an inode number,
4083 * we fake one here. (We don't use inode number 0,
4084 * since glibc seems to choke on it...)
4088 len
= ntohl(*p
++); /* bitmap length */
4090 bitmap
[0] = ntohl(*p
++);
4092 bitmap
[1] = ntohl(*p
++);
4096 len
= XDR_QUADLEN(ntohl(*p
++)); /* attribute buffer length */
4098 if (bitmap
[0] & FATTR4_WORD0_RDATTR_ERROR
) {
4099 bitmap
[0] &= ~FATTR4_WORD0_RDATTR_ERROR
;
4100 /* Ignore the return value of rdattr_error for now */
4104 if (bitmap
[0] == 0 && bitmap
[1] == FATTR4_WORD1_MOUNTED_ON_FILEID
)
4105 xdr_decode_hyper(p
, &entry
->ino
);
4106 else if (bitmap
[0] == FATTR4_WORD0_FILEID
)
4107 xdr_decode_hyper(p
, &entry
->ino
);
4111 entry
->eof
= !p
[0] && p
[1];
4116 * We need to translate between nfs status return values and
4117 * the local errno values which may not be the same.
4124 { NFS4ERR_PERM
, EPERM
},
4125 { NFS4ERR_NOENT
, ENOENT
},
4126 { NFS4ERR_IO
, errno_NFSERR_IO
},
4127 { NFS4ERR_NXIO
, ENXIO
},
4128 { NFS4ERR_ACCESS
, EACCES
},
4129 { NFS4ERR_EXIST
, EEXIST
},
4130 { NFS4ERR_XDEV
, EXDEV
},
4131 { NFS4ERR_NOTDIR
, ENOTDIR
},
4132 { NFS4ERR_ISDIR
, EISDIR
},
4133 { NFS4ERR_INVAL
, EINVAL
},
4134 { NFS4ERR_FBIG
, EFBIG
},
4135 { NFS4ERR_NOSPC
, ENOSPC
},
4136 { NFS4ERR_ROFS
, EROFS
},
4137 { NFS4ERR_MLINK
, EMLINK
},
4138 { NFS4ERR_NAMETOOLONG
, ENAMETOOLONG
},
4139 { NFS4ERR_NOTEMPTY
, ENOTEMPTY
},
4140 { NFS4ERR_DQUOT
, EDQUOT
},
4141 { NFS4ERR_STALE
, ESTALE
},
4142 { NFS4ERR_BADHANDLE
, EBADHANDLE
},
4143 { NFS4ERR_BADOWNER
, EINVAL
},
4144 { NFS4ERR_BADNAME
, EINVAL
},
4145 { NFS4ERR_BAD_COOKIE
, EBADCOOKIE
},
4146 { NFS4ERR_NOTSUPP
, ENOTSUPP
},
4147 { NFS4ERR_TOOSMALL
, ETOOSMALL
},
4148 { NFS4ERR_SERVERFAULT
, ESERVERFAULT
},
4149 { NFS4ERR_BADTYPE
, EBADTYPE
},
4150 { NFS4ERR_LOCKED
, EAGAIN
},
4151 { NFS4ERR_RESOURCE
, EREMOTEIO
},
4152 { NFS4ERR_SYMLINK
, ELOOP
},
4153 { NFS4ERR_OP_ILLEGAL
, EOPNOTSUPP
},
4154 { NFS4ERR_DEADLOCK
, EDEADLK
},
4155 { NFS4ERR_WRONGSEC
, EPERM
}, /* FIXME: this needs
4156 * to be handled by a
4163 * Convert an NFS error code to a local one.
4164 * This one is used jointly by NFSv2 and NFSv3.
4167 nfs_stat_to_errno(int stat
)
4170 for (i
= 0; nfs_errtbl
[i
].stat
!= -1; i
++) {
4171 if (nfs_errtbl
[i
].stat
== stat
)
4172 return nfs_errtbl
[i
].errno
;
4174 if (stat
<= 10000 || stat
> 10100) {
4175 /* The server is looney tunes. */
4176 return ESERVERFAULT
;
4178 /* If we cannot translate the error, the recovery routines should
4180 * Note: remaining NFSv4 error codes have values > 10000, so should
4181 * not conflict with native Linux error codes.
4187 # define MAX(a, b) (((a) > (b))? (a) : (b))
4190 #define PROC(proc, argtype, restype) \
4191 [NFSPROC4_CLNT_##proc] = { \
4192 .p_proc = NFSPROC4_COMPOUND, \
4193 .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \
4194 .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \
4195 .p_bufsiz = MAX(NFS4_##argtype##_sz,NFS4_##restype##_sz) << 2, \
4198 struct rpc_procinfo nfs4_procedures
[] = {
4199 PROC(READ
, enc_read
, dec_read
),
4200 PROC(WRITE
, enc_write
, dec_write
),
4201 PROC(COMMIT
, enc_commit
, dec_commit
),
4202 PROC(OPEN
, enc_open
, dec_open
),
4203 PROC(OPEN_CONFIRM
, enc_open_confirm
, dec_open_confirm
),
4204 PROC(OPEN_NOATTR
, enc_open_noattr
, dec_open_noattr
),
4205 PROC(OPEN_DOWNGRADE
, enc_open_downgrade
, dec_open_downgrade
),
4206 PROC(CLOSE
, enc_close
, dec_close
),
4207 PROC(SETATTR
, enc_setattr
, dec_setattr
),
4208 PROC(FSINFO
, enc_fsinfo
, dec_fsinfo
),
4209 PROC(RENEW
, enc_renew
, dec_renew
),
4210 PROC(SETCLIENTID
, enc_setclientid
, dec_setclientid
),
4211 PROC(SETCLIENTID_CONFIRM
, enc_setclientid_confirm
, dec_setclientid_confirm
),
4212 PROC(LOCK
, enc_lock
, dec_lock
),
4213 PROC(LOCKT
, enc_lockt
, dec_lockt
),
4214 PROC(LOCKU
, enc_locku
, dec_locku
),
4215 PROC(ACCESS
, enc_access
, dec_access
),
4216 PROC(GETATTR
, enc_getattr
, dec_getattr
),
4217 PROC(LOOKUP
, enc_lookup
, dec_lookup
),
4218 PROC(LOOKUP_ROOT
, enc_lookup_root
, dec_lookup_root
),
4219 PROC(REMOVE
, enc_remove
, dec_remove
),
4220 PROC(RENAME
, enc_rename
, dec_rename
),
4221 PROC(LINK
, enc_link
, dec_link
),
4222 PROC(SYMLINK
, enc_symlink
, dec_symlink
),
4223 PROC(CREATE
, enc_create
, dec_create
),
4224 PROC(PATHCONF
, enc_pathconf
, dec_pathconf
),
4225 PROC(STATFS
, enc_statfs
, dec_statfs
),
4226 PROC(READLINK
, enc_readlink
, dec_readlink
),
4227 PROC(READDIR
, enc_readdir
, dec_readdir
),
4228 PROC(SERVER_CAPS
, enc_server_caps
, dec_server_caps
),
4229 PROC(DELEGRETURN
, enc_delegreturn
, dec_delegreturn
),
4230 PROC(GETACL
, enc_getacl
, dec_getacl
),
4231 PROC(SETACL
, enc_setacl
, dec_setacl
),
4234 struct rpc_version nfs_version4
= {
4236 .nrprocs
= sizeof(nfs4_procedures
)/sizeof(nfs4_procedures
[0]),
4237 .procs
= nfs4_procedures