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/errno.h>
43 #include <linux/string.h>
45 #include <linux/pagemap.h>
46 #include <linux/proc_fs.h>
47 #include <linux/kdev_t.h>
48 #include <linux/sunrpc/clnt.h>
49 #include <linux/sunrpc/msg_prot.h>
50 #include <linux/nfs.h>
51 #include <linux/nfs4.h>
52 #include <linux/nfs_fs.h>
53 #include <linux/nfs_idmap.h>
57 #define NFSDBG_FACILITY NFSDBG_XDR
59 /* Mapping from NFS error code to "errno" error code. */
60 #define errno_NFSERR_IO EIO
62 static int nfs4_stat_to_errno(int);
64 /* NFSv4 COMPOUND tags are only wanted for debugging purposes */
66 #define NFS4_MAXTAGLEN 20
68 #define NFS4_MAXTAGLEN 0
71 /* lock,open owner id:
72 * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
74 #define open_owner_id_maxsz (1 + 4)
75 #define lock_owner_id_maxsz (1 + 4)
76 #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
77 #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
78 #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
79 #define op_encode_hdr_maxsz (1)
80 #define op_decode_hdr_maxsz (2)
81 #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
82 #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
83 #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
84 #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
85 #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
87 #define decode_putfh_maxsz (op_decode_hdr_maxsz)
88 #define encode_putrootfh_maxsz (op_encode_hdr_maxsz)
89 #define decode_putrootfh_maxsz (op_decode_hdr_maxsz)
90 #define encode_getfh_maxsz (op_encode_hdr_maxsz)
91 #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
92 ((3+NFS4_FHSIZE) >> 2))
93 #define nfs4_fattr_bitmap_maxsz 3
94 #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
95 #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
96 #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
97 #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
98 #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
99 /* This is based on getfattr, which uses the most attributes: */
100 #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
101 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz))
102 #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
103 nfs4_fattr_value_maxsz)
104 #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
105 #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
110 #define encode_savefh_maxsz (op_encode_hdr_maxsz)
111 #define decode_savefh_maxsz (op_decode_hdr_maxsz)
112 #define encode_restorefh_maxsz (op_encode_hdr_maxsz)
113 #define decode_restorefh_maxsz (op_decode_hdr_maxsz)
114 #define encode_fsinfo_maxsz (encode_getattr_maxsz)
115 #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11)
116 #define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
117 #define decode_renew_maxsz (op_decode_hdr_maxsz)
118 #define encode_setclientid_maxsz \
119 (op_encode_hdr_maxsz + \
120 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
121 XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \
123 XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
124 XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
126 #define decode_setclientid_maxsz \
127 (op_decode_hdr_maxsz + \
129 1024) /* large value for CLID_INUSE */
130 #define encode_setclientid_confirm_maxsz \
131 (op_encode_hdr_maxsz + \
132 3 + (NFS4_VERIFIER_SIZE >> 2))
133 #define decode_setclientid_confirm_maxsz \
134 (op_decode_hdr_maxsz)
135 #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
136 #define decode_lookup_maxsz (op_decode_hdr_maxsz)
137 #define encode_share_access_maxsz \
139 #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
140 #define encode_opentype_maxsz (1 + encode_createmode_maxsz)
141 #define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
142 #define encode_open_maxsz (op_encode_hdr_maxsz + \
143 2 + encode_share_access_maxsz + 2 + \
144 open_owner_id_maxsz + \
145 encode_opentype_maxsz + \
146 encode_claim_null_maxsz)
147 #define decode_ace_maxsz (3 + nfs4_owner_maxsz)
148 #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
150 #define decode_change_info_maxsz (5)
151 #define decode_open_maxsz (op_decode_hdr_maxsz + \
152 decode_stateid_maxsz + \
153 decode_change_info_maxsz + 1 + \
154 nfs4_fattr_bitmap_maxsz + \
155 decode_delegation_maxsz)
156 #define encode_open_confirm_maxsz \
157 (op_encode_hdr_maxsz + \
158 encode_stateid_maxsz + 1)
159 #define decode_open_confirm_maxsz \
160 (op_decode_hdr_maxsz + \
161 decode_stateid_maxsz)
162 #define encode_open_downgrade_maxsz \
163 (op_encode_hdr_maxsz + \
164 encode_stateid_maxsz + 1 + \
165 encode_share_access_maxsz)
166 #define decode_open_downgrade_maxsz \
167 (op_decode_hdr_maxsz + \
168 decode_stateid_maxsz)
169 #define encode_close_maxsz (op_encode_hdr_maxsz + \
170 1 + encode_stateid_maxsz)
171 #define decode_close_maxsz (op_decode_hdr_maxsz + \
172 decode_stateid_maxsz)
173 #define encode_setattr_maxsz (op_encode_hdr_maxsz + \
174 encode_stateid_maxsz + \
176 #define decode_setattr_maxsz (op_decode_hdr_maxsz + \
177 nfs4_fattr_bitmap_maxsz)
178 #define encode_read_maxsz (op_encode_hdr_maxsz + \
179 encode_stateid_maxsz + 3)
180 #define decode_read_maxsz (op_decode_hdr_maxsz + 2)
181 #define encode_readdir_maxsz (op_encode_hdr_maxsz + \
182 2 + encode_verifier_maxsz + 5)
183 #define decode_readdir_maxsz (op_decode_hdr_maxsz + \
184 decode_verifier_maxsz)
185 #define encode_readlink_maxsz (op_encode_hdr_maxsz)
186 #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1)
187 #define encode_write_maxsz (op_encode_hdr_maxsz + \
188 encode_stateid_maxsz + 4)
189 #define decode_write_maxsz (op_decode_hdr_maxsz + \
190 2 + decode_verifier_maxsz)
191 #define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
192 #define decode_commit_maxsz (op_decode_hdr_maxsz + \
193 decode_verifier_maxsz)
194 #define encode_remove_maxsz (op_encode_hdr_maxsz + \
196 #define decode_remove_maxsz (op_decode_hdr_maxsz + \
197 decode_change_info_maxsz)
198 #define encode_rename_maxsz (op_encode_hdr_maxsz + \
200 #define decode_rename_maxsz (op_decode_hdr_maxsz + \
201 decode_change_info_maxsz + \
202 decode_change_info_maxsz)
203 #define encode_link_maxsz (op_encode_hdr_maxsz + \
205 #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
206 #define encode_lock_maxsz (op_encode_hdr_maxsz + \
208 1 + encode_stateid_maxsz + 8)
209 #define decode_lock_denied_maxsz \
210 (8 + decode_lockowner_maxsz)
211 #define decode_lock_maxsz (op_decode_hdr_maxsz + \
212 decode_lock_denied_maxsz)
213 #define encode_lockt_maxsz (op_encode_hdr_maxsz + 12)
214 #define decode_lockt_maxsz (op_decode_hdr_maxsz + \
215 decode_lock_denied_maxsz)
216 #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
217 encode_stateid_maxsz + \
219 #define decode_locku_maxsz (op_decode_hdr_maxsz + \
220 decode_stateid_maxsz)
221 #define encode_access_maxsz (op_encode_hdr_maxsz + 1)
222 #define decode_access_maxsz (op_decode_hdr_maxsz + 2)
223 #define encode_symlink_maxsz (op_encode_hdr_maxsz + \
224 1 + nfs4_name_maxsz + \
227 #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
228 #define encode_create_maxsz (op_encode_hdr_maxsz + \
229 1 + 2 + nfs4_name_maxsz + \
231 #define decode_create_maxsz (op_decode_hdr_maxsz + \
232 decode_change_info_maxsz + \
233 nfs4_fattr_bitmap_maxsz)
234 #define encode_statfs_maxsz (encode_getattr_maxsz)
235 #define decode_statfs_maxsz (decode_getattr_maxsz)
236 #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
237 #define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
238 #define encode_getacl_maxsz (encode_getattr_maxsz)
239 #define decode_getacl_maxsz (op_decode_hdr_maxsz + \
240 nfs4_fattr_bitmap_maxsz + 1)
241 #define encode_setacl_maxsz (op_encode_hdr_maxsz + \
242 encode_stateid_maxsz + 3)
243 #define decode_setacl_maxsz (decode_setattr_maxsz)
244 #define encode_fs_locations_maxsz \
245 (encode_getattr_maxsz)
246 #define decode_fs_locations_maxsz \
249 #if defined(CONFIG_NFS_V4_1)
250 #define NFS4_MAX_MACHINE_NAME_LEN (64)
252 #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
253 encode_verifier_maxsz + \
254 1 /* co_ownerid.len */ + \
255 XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \
258 0 /* SP4_NONE (for now) */ + \
259 1 /* zero implemetation id array */)
260 #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
261 2 /* eir_clientid */ + \
262 1 /* eir_sequenceid */ + \
263 1 /* eir_flags */ + \
265 0 /* SP4_NONE (for now) */ + \
266 2 /* eir_server_owner.so_minor_id */ + \
267 /* eir_server_owner.so_major_id<> */ \
268 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
269 /* eir_server_scope<> */ \
270 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
271 1 /* eir_server_impl_id array length */ + \
272 0 /* ignored eir_server_impl_id contents */)
273 #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
274 #define decode_channel_attrs_maxsz (6 + \
275 1 /* ca_rdma_ird.len */ + \
277 #define encode_create_session_maxsz (op_encode_hdr_maxsz + \
278 2 /* csa_clientid */ + \
279 1 /* csa_sequence */ + \
280 1 /* csa_flags */ + \
281 encode_channel_attrs_maxsz + \
282 encode_channel_attrs_maxsz + \
283 1 /* csa_cb_program */ + \
284 1 /* csa_sec_parms.len (1) */ + \
285 1 /* cb_secflavor (AUTH_SYS) */ + \
287 1 /* machinename.len */ + \
288 XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
291 1 /* gids.len (0) */)
292 #define decode_create_session_maxsz (op_decode_hdr_maxsz + \
293 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
294 1 /* csr_sequence */ + \
295 1 /* csr_flags */ + \
296 decode_channel_attrs_maxsz + \
297 decode_channel_attrs_maxsz)
298 #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
299 #define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
300 #define encode_sequence_maxsz (op_encode_hdr_maxsz + \
301 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
302 #define decode_sequence_maxsz (op_decode_hdr_maxsz + \
303 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
304 #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
305 #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
306 #else /* CONFIG_NFS_V4_1 */
307 #define encode_sequence_maxsz 0
308 #define decode_sequence_maxsz 0
309 #endif /* CONFIG_NFS_V4_1 */
311 #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
312 #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
313 #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
314 encode_sequence_maxsz + \
315 encode_putfh_maxsz + \
317 #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
318 decode_sequence_maxsz + \
319 decode_putfh_maxsz + \
321 #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
322 encode_sequence_maxsz + \
323 encode_putfh_maxsz + \
324 encode_readlink_maxsz)
325 #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
326 decode_sequence_maxsz + \
327 decode_putfh_maxsz + \
328 decode_readlink_maxsz)
329 #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
330 encode_sequence_maxsz + \
331 encode_putfh_maxsz + \
332 encode_readdir_maxsz)
333 #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
334 decode_sequence_maxsz + \
335 decode_putfh_maxsz + \
336 decode_readdir_maxsz)
337 #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
338 encode_sequence_maxsz + \
339 encode_putfh_maxsz + \
340 encode_write_maxsz + \
341 encode_getattr_maxsz)
342 #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
343 decode_sequence_maxsz + \
344 decode_putfh_maxsz + \
345 decode_write_maxsz + \
346 decode_getattr_maxsz)
347 #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
348 encode_sequence_maxsz + \
349 encode_putfh_maxsz + \
350 encode_commit_maxsz + \
351 encode_getattr_maxsz)
352 #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
353 decode_sequence_maxsz + \
354 decode_putfh_maxsz + \
355 decode_commit_maxsz + \
356 decode_getattr_maxsz)
357 #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
358 encode_sequence_maxsz + \
359 encode_putfh_maxsz + \
360 encode_savefh_maxsz + \
361 encode_open_maxsz + \
362 encode_getfh_maxsz + \
363 encode_getattr_maxsz + \
364 encode_restorefh_maxsz + \
365 encode_getattr_maxsz)
366 #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
367 decode_sequence_maxsz + \
368 decode_putfh_maxsz + \
369 decode_savefh_maxsz + \
370 decode_open_maxsz + \
371 decode_getfh_maxsz + \
372 decode_getattr_maxsz + \
373 decode_restorefh_maxsz + \
374 decode_getattr_maxsz)
375 #define NFS4_enc_open_confirm_sz \
376 (compound_encode_hdr_maxsz + \
377 encode_putfh_maxsz + \
378 encode_open_confirm_maxsz)
379 #define NFS4_dec_open_confirm_sz \
380 (compound_decode_hdr_maxsz + \
381 decode_putfh_maxsz + \
382 decode_open_confirm_maxsz)
383 #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
384 encode_sequence_maxsz + \
385 encode_putfh_maxsz + \
386 encode_open_maxsz + \
387 encode_getattr_maxsz)
388 #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
389 decode_sequence_maxsz + \
390 decode_putfh_maxsz + \
391 decode_open_maxsz + \
392 decode_getattr_maxsz)
393 #define NFS4_enc_open_downgrade_sz \
394 (compound_encode_hdr_maxsz + \
395 encode_sequence_maxsz + \
396 encode_putfh_maxsz + \
397 encode_open_downgrade_maxsz + \
398 encode_getattr_maxsz)
399 #define NFS4_dec_open_downgrade_sz \
400 (compound_decode_hdr_maxsz + \
401 decode_sequence_maxsz + \
402 decode_putfh_maxsz + \
403 decode_open_downgrade_maxsz + \
404 decode_getattr_maxsz)
405 #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
406 encode_sequence_maxsz + \
407 encode_putfh_maxsz + \
408 encode_close_maxsz + \
409 encode_getattr_maxsz)
410 #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
411 decode_sequence_maxsz + \
412 decode_putfh_maxsz + \
413 decode_close_maxsz + \
414 decode_getattr_maxsz)
415 #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
416 encode_sequence_maxsz + \
417 encode_putfh_maxsz + \
418 encode_setattr_maxsz + \
419 encode_getattr_maxsz)
420 #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
421 decode_sequence_maxsz + \
422 decode_putfh_maxsz + \
423 decode_setattr_maxsz + \
424 decode_getattr_maxsz)
425 #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
426 encode_sequence_maxsz + \
427 encode_putfh_maxsz + \
429 #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
430 decode_sequence_maxsz + \
431 decode_putfh_maxsz + \
433 #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
435 #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
437 #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
438 encode_setclientid_maxsz)
439 #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
440 decode_setclientid_maxsz)
441 #define NFS4_enc_setclientid_confirm_sz \
442 (compound_encode_hdr_maxsz + \
443 encode_setclientid_confirm_maxsz + \
444 encode_putrootfh_maxsz + \
446 #define NFS4_dec_setclientid_confirm_sz \
447 (compound_decode_hdr_maxsz + \
448 decode_setclientid_confirm_maxsz + \
449 decode_putrootfh_maxsz + \
451 #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
452 encode_sequence_maxsz + \
453 encode_putfh_maxsz + \
455 #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
456 decode_sequence_maxsz + \
457 decode_putfh_maxsz + \
459 #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
460 encode_sequence_maxsz + \
461 encode_putfh_maxsz + \
463 #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
464 decode_sequence_maxsz + \
465 decode_putfh_maxsz + \
467 #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
468 encode_sequence_maxsz + \
469 encode_putfh_maxsz + \
471 #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
472 decode_sequence_maxsz + \
473 decode_putfh_maxsz + \
475 #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
476 encode_sequence_maxsz + \
477 encode_putfh_maxsz + \
478 encode_access_maxsz + \
479 encode_getattr_maxsz)
480 #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
481 decode_sequence_maxsz + \
482 decode_putfh_maxsz + \
483 decode_access_maxsz + \
484 decode_getattr_maxsz)
485 #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
486 encode_sequence_maxsz + \
487 encode_putfh_maxsz + \
488 encode_getattr_maxsz)
489 #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
490 decode_sequence_maxsz + \
491 decode_putfh_maxsz + \
492 decode_getattr_maxsz)
493 #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
494 encode_sequence_maxsz + \
495 encode_putfh_maxsz + \
496 encode_lookup_maxsz + \
497 encode_getattr_maxsz + \
499 #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
500 decode_sequence_maxsz + \
501 decode_putfh_maxsz + \
502 decode_lookup_maxsz + \
503 decode_getattr_maxsz + \
505 #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
506 encode_sequence_maxsz + \
507 encode_putrootfh_maxsz + \
508 encode_getattr_maxsz + \
510 #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
511 decode_sequence_maxsz + \
512 decode_putrootfh_maxsz + \
513 decode_getattr_maxsz + \
515 #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
516 encode_sequence_maxsz + \
517 encode_putfh_maxsz + \
518 encode_remove_maxsz + \
519 encode_getattr_maxsz)
520 #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
521 decode_sequence_maxsz + \
522 decode_putfh_maxsz + \
523 decode_remove_maxsz + \
524 decode_getattr_maxsz)
525 #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
526 encode_sequence_maxsz + \
527 encode_putfh_maxsz + \
528 encode_savefh_maxsz + \
529 encode_putfh_maxsz + \
530 encode_rename_maxsz + \
531 encode_getattr_maxsz + \
532 encode_restorefh_maxsz + \
533 encode_getattr_maxsz)
534 #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
535 decode_sequence_maxsz + \
536 decode_putfh_maxsz + \
537 decode_savefh_maxsz + \
538 decode_putfh_maxsz + \
539 decode_rename_maxsz + \
540 decode_getattr_maxsz + \
541 decode_restorefh_maxsz + \
542 decode_getattr_maxsz)
543 #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
544 encode_sequence_maxsz + \
545 encode_putfh_maxsz + \
546 encode_savefh_maxsz + \
547 encode_putfh_maxsz + \
548 encode_link_maxsz + \
549 decode_getattr_maxsz + \
550 encode_restorefh_maxsz + \
551 decode_getattr_maxsz)
552 #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
553 decode_sequence_maxsz + \
554 decode_putfh_maxsz + \
555 decode_savefh_maxsz + \
556 decode_putfh_maxsz + \
557 decode_link_maxsz + \
558 decode_getattr_maxsz + \
559 decode_restorefh_maxsz + \
560 decode_getattr_maxsz)
561 #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
562 encode_sequence_maxsz + \
563 encode_putfh_maxsz + \
564 encode_symlink_maxsz + \
565 encode_getattr_maxsz + \
567 #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
568 decode_sequence_maxsz + \
569 decode_putfh_maxsz + \
570 decode_symlink_maxsz + \
571 decode_getattr_maxsz + \
573 #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
574 encode_sequence_maxsz + \
575 encode_putfh_maxsz + \
576 encode_savefh_maxsz + \
577 encode_create_maxsz + \
578 encode_getfh_maxsz + \
579 encode_getattr_maxsz + \
580 encode_restorefh_maxsz + \
581 encode_getattr_maxsz)
582 #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
583 decode_sequence_maxsz + \
584 decode_putfh_maxsz + \
585 decode_savefh_maxsz + \
586 decode_create_maxsz + \
587 decode_getfh_maxsz + \
588 decode_getattr_maxsz + \
589 decode_restorefh_maxsz + \
590 decode_getattr_maxsz)
591 #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
592 encode_sequence_maxsz + \
593 encode_putfh_maxsz + \
594 encode_getattr_maxsz)
595 #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
596 decode_sequence_maxsz + \
597 decode_putfh_maxsz + \
598 decode_getattr_maxsz)
599 #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
600 encode_sequence_maxsz + \
601 encode_putfh_maxsz + \
603 #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
604 decode_sequence_maxsz + \
605 decode_putfh_maxsz + \
607 #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
608 encode_sequence_maxsz + \
609 encode_putfh_maxsz + \
610 encode_getattr_maxsz)
611 #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
612 decode_sequence_maxsz + \
613 decode_putfh_maxsz + \
614 decode_getattr_maxsz)
615 #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
616 encode_sequence_maxsz + \
617 encode_putfh_maxsz + \
618 encode_delegreturn_maxsz + \
619 encode_getattr_maxsz)
620 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
621 decode_sequence_maxsz + \
622 decode_delegreturn_maxsz + \
623 decode_getattr_maxsz)
624 #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
625 encode_sequence_maxsz + \
626 encode_putfh_maxsz + \
628 #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
629 decode_sequence_maxsz + \
630 decode_putfh_maxsz + \
632 #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
633 encode_sequence_maxsz + \
634 encode_putfh_maxsz + \
636 #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
637 decode_sequence_maxsz + \
638 decode_putfh_maxsz + \
640 #define NFS4_enc_fs_locations_sz \
641 (compound_encode_hdr_maxsz + \
642 encode_sequence_maxsz + \
643 encode_putfh_maxsz + \
644 encode_lookup_maxsz + \
645 encode_fs_locations_maxsz)
646 #define NFS4_dec_fs_locations_sz \
647 (compound_decode_hdr_maxsz + \
648 decode_sequence_maxsz + \
649 decode_putfh_maxsz + \
650 decode_lookup_maxsz + \
651 decode_fs_locations_maxsz)
652 #if defined(CONFIG_NFS_V4_1)
653 #define NFS4_enc_exchange_id_sz \
654 (compound_encode_hdr_maxsz + \
655 encode_exchange_id_maxsz)
656 #define NFS4_dec_exchange_id_sz \
657 (compound_decode_hdr_maxsz + \
658 decode_exchange_id_maxsz)
659 #define NFS4_enc_create_session_sz \
660 (compound_encode_hdr_maxsz + \
661 encode_create_session_maxsz)
662 #define NFS4_dec_create_session_sz \
663 (compound_decode_hdr_maxsz + \
664 decode_create_session_maxsz)
665 #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
666 encode_destroy_session_maxsz)
667 #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
668 decode_destroy_session_maxsz)
669 #define NFS4_enc_sequence_sz \
670 (compound_decode_hdr_maxsz + \
671 encode_sequence_maxsz)
672 #define NFS4_dec_sequence_sz \
673 (compound_decode_hdr_maxsz + \
674 decode_sequence_maxsz)
675 #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
676 encode_sequence_maxsz + \
677 encode_putrootfh_maxsz + \
679 #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
680 decode_sequence_maxsz + \
681 decode_putrootfh_maxsz + \
683 #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
684 encode_sequence_maxsz + \
685 encode_reclaim_complete_maxsz)
686 #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
687 decode_sequence_maxsz + \
688 decode_reclaim_complete_maxsz)
690 const u32 nfs41_maxwrite_overhead
= ((RPC_MAX_HEADER_WITH_AUTH
+
691 compound_encode_hdr_maxsz
+
692 encode_sequence_maxsz
+
694 encode_getattr_maxsz
) *
697 const u32 nfs41_maxread_overhead
= ((RPC_MAX_HEADER_WITH_AUTH
+
698 compound_decode_hdr_maxsz
+
699 decode_sequence_maxsz
+
700 decode_putfh_maxsz
) *
702 #endif /* CONFIG_NFS_V4_1 */
704 static const umode_t nfs_type2fmt
[] = {
711 [NF4SOCK
] = S_IFSOCK
,
717 struct compound_hdr
{
723 uint32_t replen
; /* expected reply words */
727 static __be32
*reserve_space(struct xdr_stream
*xdr
, size_t nbytes
)
729 __be32
*p
= xdr_reserve_space(xdr
, nbytes
);
734 static void encode_string(struct xdr_stream
*xdr
, unsigned int len
, const char *str
)
738 p
= xdr_reserve_space(xdr
, 4 + len
);
740 xdr_encode_opaque(p
, str
, len
);
743 static void encode_compound_hdr(struct xdr_stream
*xdr
,
744 struct rpc_rqst
*req
,
745 struct compound_hdr
*hdr
)
748 struct rpc_auth
*auth
= req
->rq_task
->tk_msg
.rpc_cred
->cr_auth
;
750 /* initialize running count of expected bytes in reply.
751 * NOTE: the replied tag SHOULD be the same is the one sent,
752 * but this is not required as a MUST for the server to do so. */
753 hdr
->replen
= RPC_REPHDRSIZE
+ auth
->au_rslack
+ 3 + hdr
->taglen
;
755 dprintk("encode_compound: tag=%.*s\n", (int)hdr
->taglen
, hdr
->tag
);
756 BUG_ON(hdr
->taglen
> NFS4_MAXTAGLEN
);
757 p
= reserve_space(xdr
, 4 + hdr
->taglen
+ 8);
758 p
= xdr_encode_opaque(p
, hdr
->tag
, hdr
->taglen
);
759 *p
++ = cpu_to_be32(hdr
->minorversion
);
761 *p
= cpu_to_be32(hdr
->nops
);
764 static void encode_nops(struct compound_hdr
*hdr
)
766 BUG_ON(hdr
->nops
> NFS4_MAX_OPS
);
767 *hdr
->nops_p
= htonl(hdr
->nops
);
770 static void encode_nfs4_verifier(struct xdr_stream
*xdr
, const nfs4_verifier
*verf
)
774 p
= xdr_reserve_space(xdr
, NFS4_VERIFIER_SIZE
);
776 xdr_encode_opaque_fixed(p
, verf
->data
, NFS4_VERIFIER_SIZE
);
779 static void encode_attrs(struct xdr_stream
*xdr
, const struct iattr
*iap
, const struct nfs_server
*server
)
781 char owner_name
[IDMAP_NAMESZ
];
782 char owner_group
[IDMAP_NAMESZ
];
783 int owner_namelen
= 0;
784 int owner_grouplen
= 0;
792 * We reserve enough space to write the entire attribute buffer at once.
793 * In the worst-case, this would be
794 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
795 * = 36 bytes, plus any contribution from variable-length fields
796 * such as owner/group.
801 if (iap
->ia_valid
& ATTR_SIZE
)
803 if (iap
->ia_valid
& ATTR_MODE
)
805 if (iap
->ia_valid
& ATTR_UID
) {
806 owner_namelen
= nfs_map_uid_to_name(server
->nfs_client
, iap
->ia_uid
, owner_name
);
807 if (owner_namelen
< 0) {
808 dprintk("nfs: couldn't resolve uid %d to string\n",
811 strcpy(owner_name
, "nobody");
812 owner_namelen
= sizeof("nobody") - 1;
815 len
+= 4 + (XDR_QUADLEN(owner_namelen
) << 2);
817 if (iap
->ia_valid
& ATTR_GID
) {
818 owner_grouplen
= nfs_map_gid_to_group(server
->nfs_client
, iap
->ia_gid
, owner_group
);
819 if (owner_grouplen
< 0) {
820 dprintk("nfs: couldn't resolve gid %d to string\n",
822 strcpy(owner_group
, "nobody");
823 owner_grouplen
= sizeof("nobody") - 1;
826 len
+= 4 + (XDR_QUADLEN(owner_grouplen
) << 2);
828 if (iap
->ia_valid
& ATTR_ATIME_SET
)
830 else if (iap
->ia_valid
& ATTR_ATIME
)
832 if (iap
->ia_valid
& ATTR_MTIME_SET
)
834 else if (iap
->ia_valid
& ATTR_MTIME
)
836 p
= reserve_space(xdr
, len
);
839 * We write the bitmap length now, but leave the bitmap and the attribute
840 * buffer length to be backfilled at the end of this routine.
842 *p
++ = cpu_to_be32(2);
846 if (iap
->ia_valid
& ATTR_SIZE
) {
847 bmval0
|= FATTR4_WORD0_SIZE
;
848 p
= xdr_encode_hyper(p
, iap
->ia_size
);
850 if (iap
->ia_valid
& ATTR_MODE
) {
851 bmval1
|= FATTR4_WORD1_MODE
;
852 *p
++ = cpu_to_be32(iap
->ia_mode
& S_IALLUGO
);
854 if (iap
->ia_valid
& ATTR_UID
) {
855 bmval1
|= FATTR4_WORD1_OWNER
;
856 p
= xdr_encode_opaque(p
, owner_name
, owner_namelen
);
858 if (iap
->ia_valid
& ATTR_GID
) {
859 bmval1
|= FATTR4_WORD1_OWNER_GROUP
;
860 p
= xdr_encode_opaque(p
, owner_group
, owner_grouplen
);
862 if (iap
->ia_valid
& ATTR_ATIME_SET
) {
863 bmval1
|= FATTR4_WORD1_TIME_ACCESS_SET
;
864 *p
++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME
);
865 *p
++ = cpu_to_be32(0);
866 *p
++ = cpu_to_be32(iap
->ia_mtime
.tv_sec
);
867 *p
++ = cpu_to_be32(iap
->ia_mtime
.tv_nsec
);
869 else if (iap
->ia_valid
& ATTR_ATIME
) {
870 bmval1
|= FATTR4_WORD1_TIME_ACCESS_SET
;
871 *p
++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME
);
873 if (iap
->ia_valid
& ATTR_MTIME_SET
) {
874 bmval1
|= FATTR4_WORD1_TIME_MODIFY_SET
;
875 *p
++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME
);
876 *p
++ = cpu_to_be32(0);
877 *p
++ = cpu_to_be32(iap
->ia_mtime
.tv_sec
);
878 *p
++ = cpu_to_be32(iap
->ia_mtime
.tv_nsec
);
880 else if (iap
->ia_valid
& ATTR_MTIME
) {
881 bmval1
|= FATTR4_WORD1_TIME_MODIFY_SET
;
882 *p
++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME
);
886 * Now we backfill the bitmap and the attribute buffer length.
888 if (len
!= ((char *)p
- (char *)q
) + 4) {
889 printk(KERN_ERR
"nfs: Attr length error, %u != %Zu\n",
890 len
, ((char *)p
- (char *)q
) + 4);
893 len
= (char *)p
- (char *)q
- 12;
894 *q
++ = htonl(bmval0
);
895 *q
++ = htonl(bmval1
);
901 static void encode_access(struct xdr_stream
*xdr
, u32 access
, struct compound_hdr
*hdr
)
905 p
= reserve_space(xdr
, 8);
906 *p
++ = cpu_to_be32(OP_ACCESS
);
907 *p
= cpu_to_be32(access
);
909 hdr
->replen
+= decode_access_maxsz
;
912 static void encode_close(struct xdr_stream
*xdr
, const struct nfs_closeargs
*arg
, struct compound_hdr
*hdr
)
916 p
= reserve_space(xdr
, 8+NFS4_STATEID_SIZE
);
917 *p
++ = cpu_to_be32(OP_CLOSE
);
918 *p
++ = cpu_to_be32(arg
->seqid
->sequence
->counter
);
919 xdr_encode_opaque_fixed(p
, arg
->stateid
->data
, NFS4_STATEID_SIZE
);
921 hdr
->replen
+= decode_close_maxsz
;
924 static void encode_commit(struct xdr_stream
*xdr
, const struct nfs_writeargs
*args
, struct compound_hdr
*hdr
)
928 p
= reserve_space(xdr
, 16);
929 *p
++ = cpu_to_be32(OP_COMMIT
);
930 p
= xdr_encode_hyper(p
, args
->offset
);
931 *p
= cpu_to_be32(args
->count
);
933 hdr
->replen
+= decode_commit_maxsz
;
936 static void encode_create(struct xdr_stream
*xdr
, const struct nfs4_create_arg
*create
, struct compound_hdr
*hdr
)
940 p
= reserve_space(xdr
, 8);
941 *p
++ = cpu_to_be32(OP_CREATE
);
942 *p
= cpu_to_be32(create
->ftype
);
944 switch (create
->ftype
) {
946 p
= reserve_space(xdr
, 4);
947 *p
= cpu_to_be32(create
->u
.symlink
.len
);
948 xdr_write_pages(xdr
, create
->u
.symlink
.pages
, 0, create
->u
.symlink
.len
);
951 case NF4BLK
: case NF4CHR
:
952 p
= reserve_space(xdr
, 8);
953 *p
++ = cpu_to_be32(create
->u
.device
.specdata1
);
954 *p
= cpu_to_be32(create
->u
.device
.specdata2
);
961 encode_string(xdr
, create
->name
->len
, create
->name
->name
);
963 hdr
->replen
+= decode_create_maxsz
;
965 encode_attrs(xdr
, create
->attrs
, create
->server
);
968 static void encode_getattr_one(struct xdr_stream
*xdr
, uint32_t bitmap
, struct compound_hdr
*hdr
)
972 p
= reserve_space(xdr
, 12);
973 *p
++ = cpu_to_be32(OP_GETATTR
);
974 *p
++ = cpu_to_be32(1);
975 *p
= cpu_to_be32(bitmap
);
977 hdr
->replen
+= decode_getattr_maxsz
;
980 static void encode_getattr_two(struct xdr_stream
*xdr
, uint32_t bm0
, uint32_t bm1
, struct compound_hdr
*hdr
)
984 p
= reserve_space(xdr
, 16);
985 *p
++ = cpu_to_be32(OP_GETATTR
);
986 *p
++ = cpu_to_be32(2);
987 *p
++ = cpu_to_be32(bm0
);
988 *p
= cpu_to_be32(bm1
);
990 hdr
->replen
+= decode_getattr_maxsz
;
993 static void encode_getfattr(struct xdr_stream
*xdr
, const u32
* bitmask
, struct compound_hdr
*hdr
)
995 encode_getattr_two(xdr
, bitmask
[0] & nfs4_fattr_bitmap
[0],
996 bitmask
[1] & nfs4_fattr_bitmap
[1], hdr
);
999 static void encode_fsinfo(struct xdr_stream
*xdr
, const u32
* bitmask
, struct compound_hdr
*hdr
)
1001 encode_getattr_two(xdr
, bitmask
[0] & nfs4_fsinfo_bitmap
[0],
1002 bitmask
[1] & nfs4_fsinfo_bitmap
[1], hdr
);
1005 static void encode_fs_locations(struct xdr_stream
*xdr
, const u32
* bitmask
, struct compound_hdr
*hdr
)
1007 encode_getattr_two(xdr
, bitmask
[0] & nfs4_fs_locations_bitmap
[0],
1008 bitmask
[1] & nfs4_fs_locations_bitmap
[1], hdr
);
1011 static void encode_getfh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1015 p
= reserve_space(xdr
, 4);
1016 *p
= cpu_to_be32(OP_GETFH
);
1018 hdr
->replen
+= decode_getfh_maxsz
;
1021 static void encode_link(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1025 p
= reserve_space(xdr
, 8 + name
->len
);
1026 *p
++ = cpu_to_be32(OP_LINK
);
1027 xdr_encode_opaque(p
, name
->name
, name
->len
);
1029 hdr
->replen
+= decode_link_maxsz
;
1032 static inline int nfs4_lock_type(struct file_lock
*fl
, int block
)
1034 if ((fl
->fl_type
& (F_RDLCK
|F_WRLCK
|F_UNLCK
)) == F_RDLCK
)
1035 return block
? NFS4_READW_LT
: NFS4_READ_LT
;
1036 return block
? NFS4_WRITEW_LT
: NFS4_WRITE_LT
;
1039 static inline uint64_t nfs4_lock_length(struct file_lock
*fl
)
1041 if (fl
->fl_end
== OFFSET_MAX
)
1042 return ~(uint64_t)0;
1043 return fl
->fl_end
- fl
->fl_start
+ 1;
1047 * opcode,type,reclaim,offset,length,new_lock_owner = 32
1048 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
1050 static void encode_lock(struct xdr_stream
*xdr
, const struct nfs_lock_args
*args
, struct compound_hdr
*hdr
)
1054 p
= reserve_space(xdr
, 32);
1055 *p
++ = cpu_to_be32(OP_LOCK
);
1056 *p
++ = cpu_to_be32(nfs4_lock_type(args
->fl
, args
->block
));
1057 *p
++ = cpu_to_be32(args
->reclaim
);
1058 p
= xdr_encode_hyper(p
, args
->fl
->fl_start
);
1059 p
= xdr_encode_hyper(p
, nfs4_lock_length(args
->fl
));
1060 *p
= cpu_to_be32(args
->new_lock_owner
);
1061 if (args
->new_lock_owner
){
1062 p
= reserve_space(xdr
, 4+NFS4_STATEID_SIZE
+32);
1063 *p
++ = cpu_to_be32(args
->open_seqid
->sequence
->counter
);
1064 p
= xdr_encode_opaque_fixed(p
, args
->open_stateid
->data
, NFS4_STATEID_SIZE
);
1065 *p
++ = cpu_to_be32(args
->lock_seqid
->sequence
->counter
);
1066 p
= xdr_encode_hyper(p
, args
->lock_owner
.clientid
);
1067 *p
++ = cpu_to_be32(16);
1068 p
= xdr_encode_opaque_fixed(p
, "lock id:", 8);
1069 xdr_encode_hyper(p
, args
->lock_owner
.id
);
1072 p
= reserve_space(xdr
, NFS4_STATEID_SIZE
+4);
1073 p
= xdr_encode_opaque_fixed(p
, args
->lock_stateid
->data
, NFS4_STATEID_SIZE
);
1074 *p
= cpu_to_be32(args
->lock_seqid
->sequence
->counter
);
1077 hdr
->replen
+= decode_lock_maxsz
;
1080 static void encode_lockt(struct xdr_stream
*xdr
, const struct nfs_lockt_args
*args
, struct compound_hdr
*hdr
)
1084 p
= reserve_space(xdr
, 52);
1085 *p
++ = cpu_to_be32(OP_LOCKT
);
1086 *p
++ = cpu_to_be32(nfs4_lock_type(args
->fl
, 0));
1087 p
= xdr_encode_hyper(p
, args
->fl
->fl_start
);
1088 p
= xdr_encode_hyper(p
, nfs4_lock_length(args
->fl
));
1089 p
= xdr_encode_hyper(p
, args
->lock_owner
.clientid
);
1090 *p
++ = cpu_to_be32(16);
1091 p
= xdr_encode_opaque_fixed(p
, "lock id:", 8);
1092 xdr_encode_hyper(p
, args
->lock_owner
.id
);
1094 hdr
->replen
+= decode_lockt_maxsz
;
1097 static void encode_locku(struct xdr_stream
*xdr
, const struct nfs_locku_args
*args
, struct compound_hdr
*hdr
)
1101 p
= reserve_space(xdr
, 12+NFS4_STATEID_SIZE
+16);
1102 *p
++ = cpu_to_be32(OP_LOCKU
);
1103 *p
++ = cpu_to_be32(nfs4_lock_type(args
->fl
, 0));
1104 *p
++ = cpu_to_be32(args
->seqid
->sequence
->counter
);
1105 p
= xdr_encode_opaque_fixed(p
, args
->stateid
->data
, NFS4_STATEID_SIZE
);
1106 p
= xdr_encode_hyper(p
, args
->fl
->fl_start
);
1107 xdr_encode_hyper(p
, nfs4_lock_length(args
->fl
));
1109 hdr
->replen
+= decode_locku_maxsz
;
1112 static void encode_lookup(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1114 int len
= name
->len
;
1117 p
= reserve_space(xdr
, 8 + len
);
1118 *p
++ = cpu_to_be32(OP_LOOKUP
);
1119 xdr_encode_opaque(p
, name
->name
, len
);
1121 hdr
->replen
+= decode_lookup_maxsz
;
1124 static void encode_share_access(struct xdr_stream
*xdr
, fmode_t fmode
)
1128 p
= reserve_space(xdr
, 8);
1129 switch (fmode
& (FMODE_READ
|FMODE_WRITE
)) {
1131 *p
++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ
);
1134 *p
++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE
);
1136 case FMODE_READ
|FMODE_WRITE
:
1137 *p
++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH
);
1140 *p
++ = cpu_to_be32(0);
1142 *p
= cpu_to_be32(0); /* for linux, share_deny = 0 always */
1145 static inline void encode_openhdr(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
1149 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1152 p
= reserve_space(xdr
, 8);
1153 *p
++ = cpu_to_be32(OP_OPEN
);
1154 *p
= cpu_to_be32(arg
->seqid
->sequence
->counter
);
1155 encode_share_access(xdr
, arg
->fmode
);
1156 p
= reserve_space(xdr
, 28);
1157 p
= xdr_encode_hyper(p
, arg
->clientid
);
1158 *p
++ = cpu_to_be32(16);
1159 p
= xdr_encode_opaque_fixed(p
, "open id:", 8);
1160 xdr_encode_hyper(p
, arg
->id
);
1163 static inline void encode_createmode(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
1166 struct nfs_client
*clp
;
1168 p
= reserve_space(xdr
, 4);
1169 switch(arg
->open_flags
& O_EXCL
) {
1171 *p
= cpu_to_be32(NFS4_CREATE_UNCHECKED
);
1172 encode_attrs(xdr
, arg
->u
.attrs
, arg
->server
);
1175 clp
= arg
->server
->nfs_client
;
1176 if (clp
->cl_minorversion
> 0) {
1177 if (nfs4_has_persistent_session(clp
)) {
1178 *p
= cpu_to_be32(NFS4_CREATE_GUARDED
);
1179 encode_attrs(xdr
, arg
->u
.attrs
, arg
->server
);
1183 *p
= cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1
);
1184 encode_nfs4_verifier(xdr
, &arg
->u
.verifier
);
1186 encode_attrs(xdr
, &dummy
, arg
->server
);
1189 *p
= cpu_to_be32(NFS4_CREATE_EXCLUSIVE
);
1190 encode_nfs4_verifier(xdr
, &arg
->u
.verifier
);
1195 static void encode_opentype(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
1199 p
= reserve_space(xdr
, 4);
1200 switch (arg
->open_flags
& O_CREAT
) {
1202 *p
= cpu_to_be32(NFS4_OPEN_NOCREATE
);
1205 BUG_ON(arg
->claim
!= NFS4_OPEN_CLAIM_NULL
);
1206 *p
= cpu_to_be32(NFS4_OPEN_CREATE
);
1207 encode_createmode(xdr
, arg
);
1211 static inline void encode_delegation_type(struct xdr_stream
*xdr
, fmode_t delegation_type
)
1215 p
= reserve_space(xdr
, 4);
1216 switch (delegation_type
) {
1218 *p
= cpu_to_be32(NFS4_OPEN_DELEGATE_NONE
);
1221 *p
= cpu_to_be32(NFS4_OPEN_DELEGATE_READ
);
1223 case FMODE_WRITE
|FMODE_READ
:
1224 *p
= cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE
);
1231 static inline void encode_claim_null(struct xdr_stream
*xdr
, const struct qstr
*name
)
1235 p
= reserve_space(xdr
, 4);
1236 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_NULL
);
1237 encode_string(xdr
, name
->len
, name
->name
);
1240 static inline void encode_claim_previous(struct xdr_stream
*xdr
, fmode_t type
)
1244 p
= reserve_space(xdr
, 4);
1245 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS
);
1246 encode_delegation_type(xdr
, type
);
1249 static inline void encode_claim_delegate_cur(struct xdr_stream
*xdr
, const struct qstr
*name
, const nfs4_stateid
*stateid
)
1253 p
= reserve_space(xdr
, 4+NFS4_STATEID_SIZE
);
1254 *p
++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR
);
1255 xdr_encode_opaque_fixed(p
, stateid
->data
, NFS4_STATEID_SIZE
);
1256 encode_string(xdr
, name
->len
, name
->name
);
1259 static void encode_open(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
, struct compound_hdr
*hdr
)
1261 encode_openhdr(xdr
, arg
);
1262 encode_opentype(xdr
, arg
);
1263 switch (arg
->claim
) {
1264 case NFS4_OPEN_CLAIM_NULL
:
1265 encode_claim_null(xdr
, arg
->name
);
1267 case NFS4_OPEN_CLAIM_PREVIOUS
:
1268 encode_claim_previous(xdr
, arg
->u
.delegation_type
);
1270 case NFS4_OPEN_CLAIM_DELEGATE_CUR
:
1271 encode_claim_delegate_cur(xdr
, arg
->name
, &arg
->u
.delegation
);
1277 hdr
->replen
+= decode_open_maxsz
;
1280 static void encode_open_confirm(struct xdr_stream
*xdr
, const struct nfs_open_confirmargs
*arg
, struct compound_hdr
*hdr
)
1284 p
= reserve_space(xdr
, 4+NFS4_STATEID_SIZE
+4);
1285 *p
++ = cpu_to_be32(OP_OPEN_CONFIRM
);
1286 p
= xdr_encode_opaque_fixed(p
, arg
->stateid
->data
, NFS4_STATEID_SIZE
);
1287 *p
= cpu_to_be32(arg
->seqid
->sequence
->counter
);
1289 hdr
->replen
+= decode_open_confirm_maxsz
;
1292 static void encode_open_downgrade(struct xdr_stream
*xdr
, const struct nfs_closeargs
*arg
, struct compound_hdr
*hdr
)
1296 p
= reserve_space(xdr
, 4+NFS4_STATEID_SIZE
+4);
1297 *p
++ = cpu_to_be32(OP_OPEN_DOWNGRADE
);
1298 p
= xdr_encode_opaque_fixed(p
, arg
->stateid
->data
, NFS4_STATEID_SIZE
);
1299 *p
= cpu_to_be32(arg
->seqid
->sequence
->counter
);
1300 encode_share_access(xdr
, arg
->fmode
);
1302 hdr
->replen
+= decode_open_downgrade_maxsz
;
1306 encode_putfh(struct xdr_stream
*xdr
, const struct nfs_fh
*fh
, struct compound_hdr
*hdr
)
1311 p
= reserve_space(xdr
, 8 + len
);
1312 *p
++ = cpu_to_be32(OP_PUTFH
);
1313 xdr_encode_opaque(p
, fh
->data
, len
);
1315 hdr
->replen
+= decode_putfh_maxsz
;
1318 static void encode_putrootfh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1322 p
= reserve_space(xdr
, 4);
1323 *p
= cpu_to_be32(OP_PUTROOTFH
);
1325 hdr
->replen
+= decode_putrootfh_maxsz
;
1328 static void encode_stateid(struct xdr_stream
*xdr
, const struct nfs_open_context
*ctx
)
1330 nfs4_stateid stateid
;
1333 p
= reserve_space(xdr
, NFS4_STATEID_SIZE
);
1334 if (ctx
->state
!= NULL
) {
1335 nfs4_copy_stateid(&stateid
, ctx
->state
, ctx
->lockowner
);
1336 xdr_encode_opaque_fixed(p
, stateid
.data
, NFS4_STATEID_SIZE
);
1338 xdr_encode_opaque_fixed(p
, zero_stateid
.data
, NFS4_STATEID_SIZE
);
1341 static void encode_read(struct xdr_stream
*xdr
, const struct nfs_readargs
*args
, struct compound_hdr
*hdr
)
1345 p
= reserve_space(xdr
, 4);
1346 *p
= cpu_to_be32(OP_READ
);
1348 encode_stateid(xdr
, args
->context
);
1350 p
= reserve_space(xdr
, 12);
1351 p
= xdr_encode_hyper(p
, args
->offset
);
1352 *p
= cpu_to_be32(args
->count
);
1354 hdr
->replen
+= decode_read_maxsz
;
1357 static void encode_readdir(struct xdr_stream
*xdr
, const struct nfs4_readdir_arg
*readdir
, struct rpc_rqst
*req
, struct compound_hdr
*hdr
)
1359 uint32_t attrs
[2] = {
1360 FATTR4_WORD0_RDATTR_ERROR
|FATTR4_WORD0_FILEID
,
1361 FATTR4_WORD1_MOUNTED_ON_FILEID
,
1365 p
= reserve_space(xdr
, 12+NFS4_VERIFIER_SIZE
+20);
1366 *p
++ = cpu_to_be32(OP_READDIR
);
1367 p
= xdr_encode_hyper(p
, readdir
->cookie
);
1368 p
= xdr_encode_opaque_fixed(p
, readdir
->verifier
.data
, NFS4_VERIFIER_SIZE
);
1369 *p
++ = cpu_to_be32(readdir
->count
>> 1); /* We're not doing readdirplus */
1370 *p
++ = cpu_to_be32(readdir
->count
);
1371 *p
++ = cpu_to_be32(2);
1372 /* Switch to mounted_on_fileid if the server supports it */
1373 if (readdir
->bitmask
[1] & FATTR4_WORD1_MOUNTED_ON_FILEID
)
1374 attrs
[0] &= ~FATTR4_WORD0_FILEID
;
1376 attrs
[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID
;
1377 *p
++ = cpu_to_be32(attrs
[0] & readdir
->bitmask
[0]);
1378 *p
= cpu_to_be32(attrs
[1] & readdir
->bitmask
[1]);
1380 hdr
->replen
+= decode_readdir_maxsz
;
1381 dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n",
1383 (unsigned long long)readdir
->cookie
,
1384 ((u32
*)readdir
->verifier
.data
)[0],
1385 ((u32
*)readdir
->verifier
.data
)[1],
1386 attrs
[0] & readdir
->bitmask
[0],
1387 attrs
[1] & readdir
->bitmask
[1]);
1390 static void encode_readlink(struct xdr_stream
*xdr
, const struct nfs4_readlink
*readlink
, struct rpc_rqst
*req
, struct compound_hdr
*hdr
)
1394 p
= reserve_space(xdr
, 4);
1395 *p
= cpu_to_be32(OP_READLINK
);
1397 hdr
->replen
+= decode_readlink_maxsz
;
1400 static void encode_remove(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1404 p
= reserve_space(xdr
, 8 + name
->len
);
1405 *p
++ = cpu_to_be32(OP_REMOVE
);
1406 xdr_encode_opaque(p
, name
->name
, name
->len
);
1408 hdr
->replen
+= decode_remove_maxsz
;
1411 static void encode_rename(struct xdr_stream
*xdr
, const struct qstr
*oldname
, const struct qstr
*newname
, struct compound_hdr
*hdr
)
1415 p
= reserve_space(xdr
, 4);
1416 *p
= cpu_to_be32(OP_RENAME
);
1417 encode_string(xdr
, oldname
->len
, oldname
->name
);
1418 encode_string(xdr
, newname
->len
, newname
->name
);
1420 hdr
->replen
+= decode_rename_maxsz
;
1423 static void encode_renew(struct xdr_stream
*xdr
, const struct nfs_client
*client_stateid
, struct compound_hdr
*hdr
)
1427 p
= reserve_space(xdr
, 12);
1428 *p
++ = cpu_to_be32(OP_RENEW
);
1429 xdr_encode_hyper(p
, client_stateid
->cl_clientid
);
1431 hdr
->replen
+= decode_renew_maxsz
;
1435 encode_restorefh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1439 p
= reserve_space(xdr
, 4);
1440 *p
= cpu_to_be32(OP_RESTOREFH
);
1442 hdr
->replen
+= decode_restorefh_maxsz
;
1446 encode_setacl(struct xdr_stream
*xdr
, struct nfs_setaclargs
*arg
, struct compound_hdr
*hdr
)
1450 p
= reserve_space(xdr
, 4+NFS4_STATEID_SIZE
);
1451 *p
++ = cpu_to_be32(OP_SETATTR
);
1452 xdr_encode_opaque_fixed(p
, zero_stateid
.data
, NFS4_STATEID_SIZE
);
1453 p
= reserve_space(xdr
, 2*4);
1454 *p
++ = cpu_to_be32(1);
1455 *p
= cpu_to_be32(FATTR4_WORD0_ACL
);
1456 if (arg
->acl_len
% 4)
1458 p
= reserve_space(xdr
, 4);
1459 *p
= cpu_to_be32(arg
->acl_len
);
1460 xdr_write_pages(xdr
, arg
->acl_pages
, arg
->acl_pgbase
, arg
->acl_len
);
1462 hdr
->replen
+= decode_setacl_maxsz
;
1467 encode_savefh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1471 p
= reserve_space(xdr
, 4);
1472 *p
= cpu_to_be32(OP_SAVEFH
);
1474 hdr
->replen
+= decode_savefh_maxsz
;
1477 static void encode_setattr(struct xdr_stream
*xdr
, const struct nfs_setattrargs
*arg
, const struct nfs_server
*server
, struct compound_hdr
*hdr
)
1481 p
= reserve_space(xdr
, 4+NFS4_STATEID_SIZE
);
1482 *p
++ = cpu_to_be32(OP_SETATTR
);
1483 xdr_encode_opaque_fixed(p
, arg
->stateid
.data
, NFS4_STATEID_SIZE
);
1485 hdr
->replen
+= decode_setattr_maxsz
;
1486 encode_attrs(xdr
, arg
->iap
, server
);
1489 static void encode_setclientid(struct xdr_stream
*xdr
, const struct nfs4_setclientid
*setclientid
, struct compound_hdr
*hdr
)
1493 p
= reserve_space(xdr
, 4 + NFS4_VERIFIER_SIZE
);
1494 *p
++ = cpu_to_be32(OP_SETCLIENTID
);
1495 xdr_encode_opaque_fixed(p
, setclientid
->sc_verifier
->data
, NFS4_VERIFIER_SIZE
);
1497 encode_string(xdr
, setclientid
->sc_name_len
, setclientid
->sc_name
);
1498 p
= reserve_space(xdr
, 4);
1499 *p
= cpu_to_be32(setclientid
->sc_prog
);
1500 encode_string(xdr
, setclientid
->sc_netid_len
, setclientid
->sc_netid
);
1501 encode_string(xdr
, setclientid
->sc_uaddr_len
, setclientid
->sc_uaddr
);
1502 p
= reserve_space(xdr
, 4);
1503 *p
= cpu_to_be32(setclientid
->sc_cb_ident
);
1505 hdr
->replen
+= decode_setclientid_maxsz
;
1508 static void encode_setclientid_confirm(struct xdr_stream
*xdr
, const struct nfs_client
*client_state
, struct compound_hdr
*hdr
)
1512 p
= reserve_space(xdr
, 12 + NFS4_VERIFIER_SIZE
);
1513 *p
++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM
);
1514 p
= xdr_encode_hyper(p
, client_state
->cl_clientid
);
1515 xdr_encode_opaque_fixed(p
, client_state
->cl_confirm
.data
, NFS4_VERIFIER_SIZE
);
1517 hdr
->replen
+= decode_setclientid_confirm_maxsz
;
1520 static void encode_write(struct xdr_stream
*xdr
, const struct nfs_writeargs
*args
, struct compound_hdr
*hdr
)
1524 p
= reserve_space(xdr
, 4);
1525 *p
= cpu_to_be32(OP_WRITE
);
1527 encode_stateid(xdr
, args
->context
);
1529 p
= reserve_space(xdr
, 16);
1530 p
= xdr_encode_hyper(p
, args
->offset
);
1531 *p
++ = cpu_to_be32(args
->stable
);
1532 *p
= cpu_to_be32(args
->count
);
1534 xdr_write_pages(xdr
, args
->pages
, args
->pgbase
, args
->count
);
1536 hdr
->replen
+= decode_write_maxsz
;
1539 static void encode_delegreturn(struct xdr_stream
*xdr
, const nfs4_stateid
*stateid
, struct compound_hdr
*hdr
)
1543 p
= reserve_space(xdr
, 4+NFS4_STATEID_SIZE
);
1545 *p
++ = cpu_to_be32(OP_DELEGRETURN
);
1546 xdr_encode_opaque_fixed(p
, stateid
->data
, NFS4_STATEID_SIZE
);
1548 hdr
->replen
+= decode_delegreturn_maxsz
;
1551 #if defined(CONFIG_NFS_V4_1)
1552 /* NFSv4.1 operations */
1553 static void encode_exchange_id(struct xdr_stream
*xdr
,
1554 struct nfs41_exchange_id_args
*args
,
1555 struct compound_hdr
*hdr
)
1559 p
= reserve_space(xdr
, 4 + sizeof(args
->verifier
->data
));
1560 *p
++ = cpu_to_be32(OP_EXCHANGE_ID
);
1561 xdr_encode_opaque_fixed(p
, args
->verifier
->data
, sizeof(args
->verifier
->data
));
1563 encode_string(xdr
, args
->id_len
, args
->id
);
1565 p
= reserve_space(xdr
, 12);
1566 *p
++ = cpu_to_be32(args
->flags
);
1567 *p
++ = cpu_to_be32(0); /* zero length state_protect4_a */
1568 *p
= cpu_to_be32(0); /* zero length implementation id array */
1570 hdr
->replen
+= decode_exchange_id_maxsz
;
1573 static void encode_create_session(struct xdr_stream
*xdr
,
1574 struct nfs41_create_session_args
*args
,
1575 struct compound_hdr
*hdr
)
1578 char machine_name
[NFS4_MAX_MACHINE_NAME_LEN
];
1580 struct nfs_client
*clp
= args
->client
;
1581 u32 max_resp_sz_cached
;
1584 * Assumes OPEN is the biggest non-idempotent compound.
1585 * 2 is the verifier.
1587 max_resp_sz_cached
= (NFS4_dec_open_sz
+ RPC_REPHDRSIZE
+
1588 RPC_MAX_AUTH_SIZE
+ 2) * XDR_UNIT
;
1590 len
= scnprintf(machine_name
, sizeof(machine_name
), "%s",
1593 p
= reserve_space(xdr
, 20 + 2*28 + 20 + len
+ 12);
1594 *p
++ = cpu_to_be32(OP_CREATE_SESSION
);
1595 p
= xdr_encode_hyper(p
, clp
->cl_ex_clid
);
1596 *p
++ = cpu_to_be32(clp
->cl_seqid
); /*Sequence id */
1597 *p
++ = cpu_to_be32(args
->flags
); /*flags */
1600 *p
++ = cpu_to_be32(args
->fc_attrs
.headerpadsz
); /* header padding size */
1601 *p
++ = cpu_to_be32(args
->fc_attrs
.max_rqst_sz
); /* max req size */
1602 *p
++ = cpu_to_be32(args
->fc_attrs
.max_resp_sz
); /* max resp size */
1603 *p
++ = cpu_to_be32(max_resp_sz_cached
); /* Max resp sz cached */
1604 *p
++ = cpu_to_be32(args
->fc_attrs
.max_ops
); /* max operations */
1605 *p
++ = cpu_to_be32(args
->fc_attrs
.max_reqs
); /* max requests */
1606 *p
++ = cpu_to_be32(0); /* rdmachannel_attrs */
1609 *p
++ = cpu_to_be32(args
->fc_attrs
.headerpadsz
); /* header padding size */
1610 *p
++ = cpu_to_be32(args
->bc_attrs
.max_rqst_sz
); /* max req size */
1611 *p
++ = cpu_to_be32(args
->bc_attrs
.max_resp_sz
); /* max resp size */
1612 *p
++ = cpu_to_be32(args
->bc_attrs
.max_resp_sz_cached
); /* Max resp sz cached */
1613 *p
++ = cpu_to_be32(args
->bc_attrs
.max_ops
); /* max operations */
1614 *p
++ = cpu_to_be32(args
->bc_attrs
.max_reqs
); /* max requests */
1615 *p
++ = cpu_to_be32(0); /* rdmachannel_attrs */
1617 *p
++ = cpu_to_be32(args
->cb_program
); /* cb_program */
1618 *p
++ = cpu_to_be32(1);
1619 *p
++ = cpu_to_be32(RPC_AUTH_UNIX
); /* auth_sys */
1621 /* authsys_parms rfc1831 */
1622 *p
++ = cpu_to_be32((u32
)clp
->cl_boot_time
.tv_nsec
); /* stamp */
1623 p
= xdr_encode_opaque(p
, machine_name
, len
);
1624 *p
++ = cpu_to_be32(0); /* UID */
1625 *p
++ = cpu_to_be32(0); /* GID */
1626 *p
= cpu_to_be32(0); /* No more gids */
1628 hdr
->replen
+= decode_create_session_maxsz
;
1631 static void encode_destroy_session(struct xdr_stream
*xdr
,
1632 struct nfs4_session
*session
,
1633 struct compound_hdr
*hdr
)
1636 p
= reserve_space(xdr
, 4 + NFS4_MAX_SESSIONID_LEN
);
1637 *p
++ = cpu_to_be32(OP_DESTROY_SESSION
);
1638 xdr_encode_opaque_fixed(p
, session
->sess_id
.data
, NFS4_MAX_SESSIONID_LEN
);
1640 hdr
->replen
+= decode_destroy_session_maxsz
;
1643 static void encode_reclaim_complete(struct xdr_stream
*xdr
,
1644 struct nfs41_reclaim_complete_args
*args
,
1645 struct compound_hdr
*hdr
)
1649 p
= reserve_space(xdr
, 8);
1650 *p
++ = cpu_to_be32(OP_RECLAIM_COMPLETE
);
1651 *p
++ = cpu_to_be32(args
->one_fs
);
1653 hdr
->replen
+= decode_reclaim_complete_maxsz
;
1655 #endif /* CONFIG_NFS_V4_1 */
1657 static void encode_sequence(struct xdr_stream
*xdr
,
1658 const struct nfs4_sequence_args
*args
,
1659 struct compound_hdr
*hdr
)
1661 #if defined(CONFIG_NFS_V4_1)
1662 struct nfs4_session
*session
= args
->sa_session
;
1663 struct nfs4_slot_table
*tp
;
1664 struct nfs4_slot
*slot
;
1670 tp
= &session
->fc_slot_table
;
1672 WARN_ON(args
->sa_slotid
== NFS4_MAX_SLOT_TABLE
);
1673 slot
= tp
->slots
+ args
->sa_slotid
;
1675 p
= reserve_space(xdr
, 4 + NFS4_MAX_SESSIONID_LEN
+ 16);
1676 *p
++ = cpu_to_be32(OP_SEQUENCE
);
1679 * Sessionid + seqid + slotid + max slotid + cache_this
1681 dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
1682 "max_slotid=%d cache_this=%d\n",
1684 ((u32
*)session
->sess_id
.data
)[0],
1685 ((u32
*)session
->sess_id
.data
)[1],
1686 ((u32
*)session
->sess_id
.data
)[2],
1687 ((u32
*)session
->sess_id
.data
)[3],
1688 slot
->seq_nr
, args
->sa_slotid
,
1689 tp
->highest_used_slotid
, args
->sa_cache_this
);
1690 p
= xdr_encode_opaque_fixed(p
, session
->sess_id
.data
, NFS4_MAX_SESSIONID_LEN
);
1691 *p
++ = cpu_to_be32(slot
->seq_nr
);
1692 *p
++ = cpu_to_be32(args
->sa_slotid
);
1693 *p
++ = cpu_to_be32(tp
->highest_used_slotid
);
1694 *p
= cpu_to_be32(args
->sa_cache_this
);
1696 hdr
->replen
+= decode_sequence_maxsz
;
1697 #endif /* CONFIG_NFS_V4_1 */
1701 * END OF "GENERIC" ENCODE ROUTINES.
1704 static u32
nfs4_xdr_minorversion(const struct nfs4_sequence_args
*args
)
1706 #if defined(CONFIG_NFS_V4_1)
1707 if (args
->sa_session
)
1708 return args
->sa_session
->clp
->cl_minorversion
;
1709 #endif /* CONFIG_NFS_V4_1 */
1714 * Encode an ACCESS request
1716 static int nfs4_xdr_enc_access(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_accessargs
*args
)
1718 struct xdr_stream xdr
;
1719 struct compound_hdr hdr
= {
1720 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1723 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1724 encode_compound_hdr(&xdr
, req
, &hdr
);
1725 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1726 encode_putfh(&xdr
, args
->fh
, &hdr
);
1727 encode_access(&xdr
, args
->access
, &hdr
);
1728 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1734 * Encode LOOKUP request
1736 static int nfs4_xdr_enc_lookup(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_lookup_arg
*args
)
1738 struct xdr_stream xdr
;
1739 struct compound_hdr hdr
= {
1740 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1743 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1744 encode_compound_hdr(&xdr
, req
, &hdr
);
1745 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1746 encode_putfh(&xdr
, args
->dir_fh
, &hdr
);
1747 encode_lookup(&xdr
, args
->name
, &hdr
);
1748 encode_getfh(&xdr
, &hdr
);
1749 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1755 * Encode LOOKUP_ROOT request
1757 static int nfs4_xdr_enc_lookup_root(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_lookup_root_arg
*args
)
1759 struct xdr_stream xdr
;
1760 struct compound_hdr hdr
= {
1761 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1764 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1765 encode_compound_hdr(&xdr
, req
, &hdr
);
1766 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1767 encode_putrootfh(&xdr
, &hdr
);
1768 encode_getfh(&xdr
, &hdr
);
1769 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1775 * Encode REMOVE request
1777 static int nfs4_xdr_enc_remove(struct rpc_rqst
*req
, __be32
*p
, const struct nfs_removeargs
*args
)
1779 struct xdr_stream xdr
;
1780 struct compound_hdr hdr
= {
1781 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1784 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1785 encode_compound_hdr(&xdr
, req
, &hdr
);
1786 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1787 encode_putfh(&xdr
, args
->fh
, &hdr
);
1788 encode_remove(&xdr
, &args
->name
, &hdr
);
1789 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1795 * Encode RENAME request
1797 static int nfs4_xdr_enc_rename(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_rename_arg
*args
)
1799 struct xdr_stream xdr
;
1800 struct compound_hdr hdr
= {
1801 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1804 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1805 encode_compound_hdr(&xdr
, req
, &hdr
);
1806 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1807 encode_putfh(&xdr
, args
->old_dir
, &hdr
);
1808 encode_savefh(&xdr
, &hdr
);
1809 encode_putfh(&xdr
, args
->new_dir
, &hdr
);
1810 encode_rename(&xdr
, args
->old_name
, args
->new_name
, &hdr
);
1811 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1812 encode_restorefh(&xdr
, &hdr
);
1813 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1819 * Encode LINK request
1821 static int nfs4_xdr_enc_link(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_link_arg
*args
)
1823 struct xdr_stream xdr
;
1824 struct compound_hdr hdr
= {
1825 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1828 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1829 encode_compound_hdr(&xdr
, req
, &hdr
);
1830 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1831 encode_putfh(&xdr
, args
->fh
, &hdr
);
1832 encode_savefh(&xdr
, &hdr
);
1833 encode_putfh(&xdr
, args
->dir_fh
, &hdr
);
1834 encode_link(&xdr
, args
->name
, &hdr
);
1835 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1836 encode_restorefh(&xdr
, &hdr
);
1837 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1843 * Encode CREATE request
1845 static int nfs4_xdr_enc_create(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_create_arg
*args
)
1847 struct xdr_stream xdr
;
1848 struct compound_hdr hdr
= {
1849 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1852 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1853 encode_compound_hdr(&xdr
, req
, &hdr
);
1854 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1855 encode_putfh(&xdr
, args
->dir_fh
, &hdr
);
1856 encode_savefh(&xdr
, &hdr
);
1857 encode_create(&xdr
, args
, &hdr
);
1858 encode_getfh(&xdr
, &hdr
);
1859 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1860 encode_restorefh(&xdr
, &hdr
);
1861 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1867 * Encode SYMLINK request
1869 static int nfs4_xdr_enc_symlink(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_create_arg
*args
)
1871 return nfs4_xdr_enc_create(req
, p
, args
);
1875 * Encode GETATTR request
1877 static int nfs4_xdr_enc_getattr(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_getattr_arg
*args
)
1879 struct xdr_stream xdr
;
1880 struct compound_hdr hdr
= {
1881 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1884 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1885 encode_compound_hdr(&xdr
, req
, &hdr
);
1886 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1887 encode_putfh(&xdr
, args
->fh
, &hdr
);
1888 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1894 * Encode a CLOSE request
1896 static int nfs4_xdr_enc_close(struct rpc_rqst
*req
, __be32
*p
, struct nfs_closeargs
*args
)
1898 struct xdr_stream xdr
;
1899 struct compound_hdr hdr
= {
1900 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1903 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1904 encode_compound_hdr(&xdr
, req
, &hdr
);
1905 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1906 encode_putfh(&xdr
, args
->fh
, &hdr
);
1907 encode_close(&xdr
, args
, &hdr
);
1908 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1914 * Encode an OPEN request
1916 static int nfs4_xdr_enc_open(struct rpc_rqst
*req
, __be32
*p
, struct nfs_openargs
*args
)
1918 struct xdr_stream xdr
;
1919 struct compound_hdr hdr
= {
1920 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1923 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1924 encode_compound_hdr(&xdr
, req
, &hdr
);
1925 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1926 encode_putfh(&xdr
, args
->fh
, &hdr
);
1927 encode_savefh(&xdr
, &hdr
);
1928 encode_open(&xdr
, args
, &hdr
);
1929 encode_getfh(&xdr
, &hdr
);
1930 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1931 encode_restorefh(&xdr
, &hdr
);
1932 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1938 * Encode an OPEN_CONFIRM request
1940 static int nfs4_xdr_enc_open_confirm(struct rpc_rqst
*req
, __be32
*p
, struct nfs_open_confirmargs
*args
)
1942 struct xdr_stream xdr
;
1943 struct compound_hdr hdr
= {
1947 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1948 encode_compound_hdr(&xdr
, req
, &hdr
);
1949 encode_putfh(&xdr
, args
->fh
, &hdr
);
1950 encode_open_confirm(&xdr
, args
, &hdr
);
1956 * Encode an OPEN request with no attributes.
1958 static int nfs4_xdr_enc_open_noattr(struct rpc_rqst
*req
, __be32
*p
, struct nfs_openargs
*args
)
1960 struct xdr_stream xdr
;
1961 struct compound_hdr hdr
= {
1962 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1965 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1966 encode_compound_hdr(&xdr
, req
, &hdr
);
1967 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1968 encode_putfh(&xdr
, args
->fh
, &hdr
);
1969 encode_open(&xdr
, args
, &hdr
);
1970 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1976 * Encode an OPEN_DOWNGRADE request
1978 static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst
*req
, __be32
*p
, struct nfs_closeargs
*args
)
1980 struct xdr_stream xdr
;
1981 struct compound_hdr hdr
= {
1982 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1985 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1986 encode_compound_hdr(&xdr
, req
, &hdr
);
1987 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1988 encode_putfh(&xdr
, args
->fh
, &hdr
);
1989 encode_open_downgrade(&xdr
, args
, &hdr
);
1990 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1996 * Encode a LOCK request
1998 static int nfs4_xdr_enc_lock(struct rpc_rqst
*req
, __be32
*p
, struct nfs_lock_args
*args
)
2000 struct xdr_stream xdr
;
2001 struct compound_hdr hdr
= {
2002 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2005 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2006 encode_compound_hdr(&xdr
, req
, &hdr
);
2007 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2008 encode_putfh(&xdr
, args
->fh
, &hdr
);
2009 encode_lock(&xdr
, args
, &hdr
);
2015 * Encode a LOCKT request
2017 static int nfs4_xdr_enc_lockt(struct rpc_rqst
*req
, __be32
*p
, struct nfs_lockt_args
*args
)
2019 struct xdr_stream xdr
;
2020 struct compound_hdr hdr
= {
2021 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2024 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2025 encode_compound_hdr(&xdr
, req
, &hdr
);
2026 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2027 encode_putfh(&xdr
, args
->fh
, &hdr
);
2028 encode_lockt(&xdr
, args
, &hdr
);
2034 * Encode a LOCKU request
2036 static int nfs4_xdr_enc_locku(struct rpc_rqst
*req
, __be32
*p
, struct nfs_locku_args
*args
)
2038 struct xdr_stream xdr
;
2039 struct compound_hdr hdr
= {
2040 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2043 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2044 encode_compound_hdr(&xdr
, req
, &hdr
);
2045 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2046 encode_putfh(&xdr
, args
->fh
, &hdr
);
2047 encode_locku(&xdr
, args
, &hdr
);
2053 * Encode a READLINK request
2055 static int nfs4_xdr_enc_readlink(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_readlink
*args
)
2057 struct xdr_stream xdr
;
2058 struct compound_hdr hdr
= {
2059 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2062 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2063 encode_compound_hdr(&xdr
, req
, &hdr
);
2064 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2065 encode_putfh(&xdr
, args
->fh
, &hdr
);
2066 encode_readlink(&xdr
, args
, req
, &hdr
);
2068 xdr_inline_pages(&req
->rq_rcv_buf
, hdr
.replen
<< 2, args
->pages
,
2069 args
->pgbase
, args
->pglen
);
2075 * Encode a READDIR request
2077 static int nfs4_xdr_enc_readdir(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_readdir_arg
*args
)
2079 struct xdr_stream xdr
;
2080 struct compound_hdr hdr
= {
2081 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2084 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2085 encode_compound_hdr(&xdr
, req
, &hdr
);
2086 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2087 encode_putfh(&xdr
, args
->fh
, &hdr
);
2088 encode_readdir(&xdr
, args
, req
, &hdr
);
2090 xdr_inline_pages(&req
->rq_rcv_buf
, hdr
.replen
<< 2, args
->pages
,
2091 args
->pgbase
, args
->count
);
2092 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
2093 __func__
, hdr
.replen
<< 2, args
->pages
,
2094 args
->pgbase
, args
->count
);
2100 * Encode a READ request
2102 static int nfs4_xdr_enc_read(struct rpc_rqst
*req
, __be32
*p
, struct nfs_readargs
*args
)
2104 struct xdr_stream xdr
;
2105 struct compound_hdr hdr
= {
2106 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2109 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2110 encode_compound_hdr(&xdr
, req
, &hdr
);
2111 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2112 encode_putfh(&xdr
, args
->fh
, &hdr
);
2113 encode_read(&xdr
, args
, &hdr
);
2115 xdr_inline_pages(&req
->rq_rcv_buf
, hdr
.replen
<< 2,
2116 args
->pages
, args
->pgbase
, args
->count
);
2117 req
->rq_rcv_buf
.flags
|= XDRBUF_READ
;
2123 * Encode an SETATTR request
2125 static int nfs4_xdr_enc_setattr(struct rpc_rqst
*req
, __be32
*p
, struct nfs_setattrargs
*args
)
2127 struct xdr_stream xdr
;
2128 struct compound_hdr hdr
= {
2129 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2132 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2133 encode_compound_hdr(&xdr
, req
, &hdr
);
2134 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2135 encode_putfh(&xdr
, args
->fh
, &hdr
);
2136 encode_setattr(&xdr
, args
, args
->server
, &hdr
);
2137 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
2143 * Encode a GETACL request
2146 nfs4_xdr_enc_getacl(struct rpc_rqst
*req
, __be32
*p
,
2147 struct nfs_getaclargs
*args
)
2149 struct xdr_stream xdr
;
2150 struct compound_hdr hdr
= {
2151 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2155 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2156 encode_compound_hdr(&xdr
, req
, &hdr
);
2157 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2158 encode_putfh(&xdr
, args
->fh
, &hdr
);
2159 replen
= hdr
.replen
+ op_decode_hdr_maxsz
+ nfs4_fattr_bitmap_maxsz
+ 1;
2160 encode_getattr_two(&xdr
, FATTR4_WORD0_ACL
, 0, &hdr
);
2162 xdr_inline_pages(&req
->rq_rcv_buf
, replen
<< 2,
2163 args
->acl_pages
, args
->acl_pgbase
, args
->acl_len
);
2169 * Encode a WRITE request
2171 static int nfs4_xdr_enc_write(struct rpc_rqst
*req
, __be32
*p
, struct nfs_writeargs
*args
)
2173 struct xdr_stream xdr
;
2174 struct compound_hdr hdr
= {
2175 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2178 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2179 encode_compound_hdr(&xdr
, req
, &hdr
);
2180 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2181 encode_putfh(&xdr
, args
->fh
, &hdr
);
2182 encode_write(&xdr
, args
, &hdr
);
2183 req
->rq_snd_buf
.flags
|= XDRBUF_WRITE
;
2184 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
2192 static int nfs4_xdr_enc_commit(struct rpc_rqst
*req
, __be32
*p
, struct nfs_writeargs
*args
)
2194 struct xdr_stream xdr
;
2195 struct compound_hdr hdr
= {
2196 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2199 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2200 encode_compound_hdr(&xdr
, req
, &hdr
);
2201 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2202 encode_putfh(&xdr
, args
->fh
, &hdr
);
2203 encode_commit(&xdr
, args
, &hdr
);
2204 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
2212 static int nfs4_xdr_enc_fsinfo(struct rpc_rqst
*req
, __be32
*p
, struct nfs4_fsinfo_arg
*args
)
2214 struct xdr_stream xdr
;
2215 struct compound_hdr hdr
= {
2216 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2219 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2220 encode_compound_hdr(&xdr
, req
, &hdr
);
2221 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2222 encode_putfh(&xdr
, args
->fh
, &hdr
);
2223 encode_fsinfo(&xdr
, args
->bitmask
, &hdr
);
2229 * a PATHCONF request
2231 static int nfs4_xdr_enc_pathconf(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_pathconf_arg
*args
)
2233 struct xdr_stream xdr
;
2234 struct compound_hdr hdr
= {
2235 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2238 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2239 encode_compound_hdr(&xdr
, req
, &hdr
);
2240 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2241 encode_putfh(&xdr
, args
->fh
, &hdr
);
2242 encode_getattr_one(&xdr
, args
->bitmask
[0] & nfs4_pathconf_bitmap
[0],
2251 static int nfs4_xdr_enc_statfs(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_statfs_arg
*args
)
2253 struct xdr_stream xdr
;
2254 struct compound_hdr hdr
= {
2255 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2258 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2259 encode_compound_hdr(&xdr
, req
, &hdr
);
2260 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2261 encode_putfh(&xdr
, args
->fh
, &hdr
);
2262 encode_getattr_two(&xdr
, args
->bitmask
[0] & nfs4_statfs_bitmap
[0],
2263 args
->bitmask
[1] & nfs4_statfs_bitmap
[1], &hdr
);
2269 * GETATTR_BITMAP request
2271 static int nfs4_xdr_enc_server_caps(struct rpc_rqst
*req
, __be32
*p
,
2272 struct nfs4_server_caps_arg
*args
)
2274 struct xdr_stream xdr
;
2275 struct compound_hdr hdr
= {
2276 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2279 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2280 encode_compound_hdr(&xdr
, req
, &hdr
);
2281 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2282 encode_putfh(&xdr
, args
->fhandle
, &hdr
);
2283 encode_getattr_one(&xdr
, FATTR4_WORD0_SUPPORTED_ATTRS
|
2284 FATTR4_WORD0_LINK_SUPPORT
|
2285 FATTR4_WORD0_SYMLINK_SUPPORT
|
2286 FATTR4_WORD0_ACLSUPPORT
, &hdr
);
2294 static int nfs4_xdr_enc_renew(struct rpc_rqst
*req
, __be32
*p
, struct nfs_client
*clp
)
2296 struct xdr_stream xdr
;
2297 struct compound_hdr hdr
= {
2301 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2302 encode_compound_hdr(&xdr
, req
, &hdr
);
2303 encode_renew(&xdr
, clp
, &hdr
);
2309 * a SETCLIENTID request
2311 static int nfs4_xdr_enc_setclientid(struct rpc_rqst
*req
, __be32
*p
, struct nfs4_setclientid
*sc
)
2313 struct xdr_stream xdr
;
2314 struct compound_hdr hdr
= {
2318 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2319 encode_compound_hdr(&xdr
, req
, &hdr
);
2320 encode_setclientid(&xdr
, sc
, &hdr
);
2326 * a SETCLIENTID_CONFIRM request
2328 static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst
*req
, __be32
*p
, struct nfs_client
*clp
)
2330 struct xdr_stream xdr
;
2331 struct compound_hdr hdr
= {
2334 const u32 lease_bitmap
[2] = { FATTR4_WORD0_LEASE_TIME
, 0 };
2336 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2337 encode_compound_hdr(&xdr
, req
, &hdr
);
2338 encode_setclientid_confirm(&xdr
, clp
, &hdr
);
2339 encode_putrootfh(&xdr
, &hdr
);
2340 encode_fsinfo(&xdr
, lease_bitmap
, &hdr
);
2346 * DELEGRETURN request
2348 static int nfs4_xdr_enc_delegreturn(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_delegreturnargs
*args
)
2350 struct xdr_stream xdr
;
2351 struct compound_hdr hdr
= {
2352 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2355 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2356 encode_compound_hdr(&xdr
, req
, &hdr
);
2357 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2358 encode_putfh(&xdr
, args
->fhandle
, &hdr
);
2359 encode_delegreturn(&xdr
, args
->stateid
, &hdr
);
2360 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
2366 * Encode FS_LOCATIONS request
2368 static int nfs4_xdr_enc_fs_locations(struct rpc_rqst
*req
, __be32
*p
, struct nfs4_fs_locations_arg
*args
)
2370 struct xdr_stream xdr
;
2371 struct compound_hdr hdr
= {
2372 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2376 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2377 encode_compound_hdr(&xdr
, req
, &hdr
);
2378 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2379 encode_putfh(&xdr
, args
->dir_fh
, &hdr
);
2380 encode_lookup(&xdr
, args
->name
, &hdr
);
2381 replen
= hdr
.replen
; /* get the attribute into args->page */
2382 encode_fs_locations(&xdr
, args
->bitmask
, &hdr
);
2384 xdr_inline_pages(&req
->rq_rcv_buf
, replen
<< 2, &args
->page
,
2390 #if defined(CONFIG_NFS_V4_1)
2392 * EXCHANGE_ID request
2394 static int nfs4_xdr_enc_exchange_id(struct rpc_rqst
*req
, uint32_t *p
,
2395 struct nfs41_exchange_id_args
*args
)
2397 struct xdr_stream xdr
;
2398 struct compound_hdr hdr
= {
2399 .minorversion
= args
->client
->cl_minorversion
,
2402 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2403 encode_compound_hdr(&xdr
, req
, &hdr
);
2404 encode_exchange_id(&xdr
, args
, &hdr
);
2410 * a CREATE_SESSION request
2412 static int nfs4_xdr_enc_create_session(struct rpc_rqst
*req
, uint32_t *p
,
2413 struct nfs41_create_session_args
*args
)
2415 struct xdr_stream xdr
;
2416 struct compound_hdr hdr
= {
2417 .minorversion
= args
->client
->cl_minorversion
,
2420 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2421 encode_compound_hdr(&xdr
, req
, &hdr
);
2422 encode_create_session(&xdr
, args
, &hdr
);
2428 * a DESTROY_SESSION request
2430 static int nfs4_xdr_enc_destroy_session(struct rpc_rqst
*req
, uint32_t *p
,
2431 struct nfs4_session
*session
)
2433 struct xdr_stream xdr
;
2434 struct compound_hdr hdr
= {
2435 .minorversion
= session
->clp
->cl_minorversion
,
2438 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2439 encode_compound_hdr(&xdr
, req
, &hdr
);
2440 encode_destroy_session(&xdr
, session
, &hdr
);
2446 * a SEQUENCE request
2448 static int nfs4_xdr_enc_sequence(struct rpc_rqst
*req
, uint32_t *p
,
2449 struct nfs4_sequence_args
*args
)
2451 struct xdr_stream xdr
;
2452 struct compound_hdr hdr
= {
2453 .minorversion
= nfs4_xdr_minorversion(args
),
2456 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2457 encode_compound_hdr(&xdr
, req
, &hdr
);
2458 encode_sequence(&xdr
, args
, &hdr
);
2464 * a GET_LEASE_TIME request
2466 static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst
*req
, uint32_t *p
,
2467 struct nfs4_get_lease_time_args
*args
)
2469 struct xdr_stream xdr
;
2470 struct compound_hdr hdr
= {
2471 .minorversion
= nfs4_xdr_minorversion(&args
->la_seq_args
),
2473 const u32 lease_bitmap
[2] = { FATTR4_WORD0_LEASE_TIME
, 0 };
2475 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2476 encode_compound_hdr(&xdr
, req
, &hdr
);
2477 encode_sequence(&xdr
, &args
->la_seq_args
, &hdr
);
2478 encode_putrootfh(&xdr
, &hdr
);
2479 encode_fsinfo(&xdr
, lease_bitmap
, &hdr
);
2485 * a RECLAIM_COMPLETE request
2487 static int nfs4_xdr_enc_reclaim_complete(struct rpc_rqst
*req
, uint32_t *p
,
2488 struct nfs41_reclaim_complete_args
*args
)
2490 struct xdr_stream xdr
;
2491 struct compound_hdr hdr
= {
2492 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
)
2495 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2496 encode_compound_hdr(&xdr
, req
, &hdr
);
2497 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2498 encode_reclaim_complete(&xdr
, args
, &hdr
);
2503 #endif /* CONFIG_NFS_V4_1 */
2505 static void print_overflow_msg(const char *func
, const struct xdr_stream
*xdr
)
2507 dprintk("nfs: %s: prematurely hit end of receive buffer. "
2508 "Remaining buffer length is %tu words.\n",
2509 func
, xdr
->end
- xdr
->p
);
2512 static int decode_opaque_inline(struct xdr_stream
*xdr
, unsigned int *len
, char **string
)
2516 p
= xdr_inline_decode(xdr
, 4);
2519 *len
= be32_to_cpup(p
);
2520 p
= xdr_inline_decode(xdr
, *len
);
2523 *string
= (char *)p
;
2526 print_overflow_msg(__func__
, xdr
);
2530 static int decode_compound_hdr(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
2534 p
= xdr_inline_decode(xdr
, 8);
2537 hdr
->status
= be32_to_cpup(p
++);
2538 hdr
->taglen
= be32_to_cpup(p
);
2540 p
= xdr_inline_decode(xdr
, hdr
->taglen
+ 4);
2543 hdr
->tag
= (char *)p
;
2544 p
+= XDR_QUADLEN(hdr
->taglen
);
2545 hdr
->nops
= be32_to_cpup(p
);
2546 if (unlikely(hdr
->nops
< 1))
2547 return nfs4_stat_to_errno(hdr
->status
);
2550 print_overflow_msg(__func__
, xdr
);
2554 static int decode_op_hdr(struct xdr_stream
*xdr
, enum nfs_opnum4 expected
)
2560 p
= xdr_inline_decode(xdr
, 8);
2563 opnum
= be32_to_cpup(p
++);
2564 if (opnum
!= expected
) {
2565 dprintk("nfs: Server returned operation"
2566 " %d but we issued a request for %d\n",
2570 nfserr
= be32_to_cpup(p
);
2571 if (nfserr
!= NFS_OK
)
2572 return nfs4_stat_to_errno(nfserr
);
2575 print_overflow_msg(__func__
, xdr
);
2580 static int decode_ace(struct xdr_stream
*xdr
, void *ace
, struct nfs_client
*clp
)
2583 unsigned int strlen
;
2586 p
= xdr_inline_decode(xdr
, 12);
2588 return decode_opaque_inline(xdr
, &strlen
, &str
);
2589 print_overflow_msg(__func__
, xdr
);
2593 static int decode_attr_bitmap(struct xdr_stream
*xdr
, uint32_t *bitmap
)
2598 p
= xdr_inline_decode(xdr
, 4);
2601 bmlen
= be32_to_cpup(p
);
2603 bitmap
[0] = bitmap
[1] = 0;
2604 p
= xdr_inline_decode(xdr
, (bmlen
<< 2));
2608 bitmap
[0] = be32_to_cpup(p
++);
2610 bitmap
[1] = be32_to_cpup(p
);
2614 print_overflow_msg(__func__
, xdr
);
2618 static inline int decode_attr_length(struct xdr_stream
*xdr
, uint32_t *attrlen
, __be32
**savep
)
2622 p
= xdr_inline_decode(xdr
, 4);
2625 *attrlen
= be32_to_cpup(p
);
2629 print_overflow_msg(__func__
, xdr
);
2633 static int decode_attr_supported(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *bitmask
)
2635 if (likely(bitmap
[0] & FATTR4_WORD0_SUPPORTED_ATTRS
)) {
2636 decode_attr_bitmap(xdr
, bitmask
);
2637 bitmap
[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS
;
2639 bitmask
[0] = bitmask
[1] = 0;
2640 dprintk("%s: bitmask=%08x:%08x\n", __func__
, bitmask
[0], bitmask
[1]);
2644 static int decode_attr_type(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *type
)
2650 if (unlikely(bitmap
[0] & (FATTR4_WORD0_TYPE
- 1U)))
2652 if (likely(bitmap
[0] & FATTR4_WORD0_TYPE
)) {
2653 p
= xdr_inline_decode(xdr
, 4);
2656 *type
= be32_to_cpup(p
);
2657 if (*type
< NF4REG
|| *type
> NF4NAMEDATTR
) {
2658 dprintk("%s: bad type %d\n", __func__
, *type
);
2661 bitmap
[0] &= ~FATTR4_WORD0_TYPE
;
2662 ret
= NFS_ATTR_FATTR_TYPE
;
2664 dprintk("%s: type=0%o\n", __func__
, nfs_type2fmt
[*type
]);
2667 print_overflow_msg(__func__
, xdr
);
2671 static int decode_attr_change(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *change
)
2677 if (unlikely(bitmap
[0] & (FATTR4_WORD0_CHANGE
- 1U)))
2679 if (likely(bitmap
[0] & FATTR4_WORD0_CHANGE
)) {
2680 p
= xdr_inline_decode(xdr
, 8);
2683 xdr_decode_hyper(p
, change
);
2684 bitmap
[0] &= ~FATTR4_WORD0_CHANGE
;
2685 ret
= NFS_ATTR_FATTR_CHANGE
;
2687 dprintk("%s: change attribute=%Lu\n", __func__
,
2688 (unsigned long long)*change
);
2691 print_overflow_msg(__func__
, xdr
);
2695 static int decode_attr_size(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *size
)
2701 if (unlikely(bitmap
[0] & (FATTR4_WORD0_SIZE
- 1U)))
2703 if (likely(bitmap
[0] & FATTR4_WORD0_SIZE
)) {
2704 p
= xdr_inline_decode(xdr
, 8);
2707 xdr_decode_hyper(p
, size
);
2708 bitmap
[0] &= ~FATTR4_WORD0_SIZE
;
2709 ret
= NFS_ATTR_FATTR_SIZE
;
2711 dprintk("%s: file size=%Lu\n", __func__
, (unsigned long long)*size
);
2714 print_overflow_msg(__func__
, xdr
);
2718 static int decode_attr_link_support(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
2723 if (unlikely(bitmap
[0] & (FATTR4_WORD0_LINK_SUPPORT
- 1U)))
2725 if (likely(bitmap
[0] & FATTR4_WORD0_LINK_SUPPORT
)) {
2726 p
= xdr_inline_decode(xdr
, 4);
2729 *res
= be32_to_cpup(p
);
2730 bitmap
[0] &= ~FATTR4_WORD0_LINK_SUPPORT
;
2732 dprintk("%s: link support=%s\n", __func__
, *res
== 0 ? "false" : "true");
2735 print_overflow_msg(__func__
, xdr
);
2739 static int decode_attr_symlink_support(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
2744 if (unlikely(bitmap
[0] & (FATTR4_WORD0_SYMLINK_SUPPORT
- 1U)))
2746 if (likely(bitmap
[0] & FATTR4_WORD0_SYMLINK_SUPPORT
)) {
2747 p
= xdr_inline_decode(xdr
, 4);
2750 *res
= be32_to_cpup(p
);
2751 bitmap
[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT
;
2753 dprintk("%s: symlink support=%s\n", __func__
, *res
== 0 ? "false" : "true");
2756 print_overflow_msg(__func__
, xdr
);
2760 static int decode_attr_fsid(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct nfs_fsid
*fsid
)
2767 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FSID
- 1U)))
2769 if (likely(bitmap
[0] & FATTR4_WORD0_FSID
)) {
2770 p
= xdr_inline_decode(xdr
, 16);
2773 p
= xdr_decode_hyper(p
, &fsid
->major
);
2774 xdr_decode_hyper(p
, &fsid
->minor
);
2775 bitmap
[0] &= ~FATTR4_WORD0_FSID
;
2776 ret
= NFS_ATTR_FATTR_FSID
;
2778 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__
,
2779 (unsigned long long)fsid
->major
,
2780 (unsigned long long)fsid
->minor
);
2783 print_overflow_msg(__func__
, xdr
);
2787 static int decode_attr_lease_time(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
2792 if (unlikely(bitmap
[0] & (FATTR4_WORD0_LEASE_TIME
- 1U)))
2794 if (likely(bitmap
[0] & FATTR4_WORD0_LEASE_TIME
)) {
2795 p
= xdr_inline_decode(xdr
, 4);
2798 *res
= be32_to_cpup(p
);
2799 bitmap
[0] &= ~FATTR4_WORD0_LEASE_TIME
;
2801 dprintk("%s: file size=%u\n", __func__
, (unsigned int)*res
);
2804 print_overflow_msg(__func__
, xdr
);
2808 static int decode_attr_aclsupport(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
2812 *res
= ACL4_SUPPORT_ALLOW_ACL
|ACL4_SUPPORT_DENY_ACL
;
2813 if (unlikely(bitmap
[0] & (FATTR4_WORD0_ACLSUPPORT
- 1U)))
2815 if (likely(bitmap
[0] & FATTR4_WORD0_ACLSUPPORT
)) {
2816 p
= xdr_inline_decode(xdr
, 4);
2819 *res
= be32_to_cpup(p
);
2820 bitmap
[0] &= ~FATTR4_WORD0_ACLSUPPORT
;
2822 dprintk("%s: ACLs supported=%u\n", __func__
, (unsigned int)*res
);
2825 print_overflow_msg(__func__
, xdr
);
2829 static int decode_attr_fileid(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *fileid
)
2835 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILEID
- 1U)))
2837 if (likely(bitmap
[0] & FATTR4_WORD0_FILEID
)) {
2838 p
= xdr_inline_decode(xdr
, 8);
2841 xdr_decode_hyper(p
, fileid
);
2842 bitmap
[0] &= ~FATTR4_WORD0_FILEID
;
2843 ret
= NFS_ATTR_FATTR_FILEID
;
2845 dprintk("%s: fileid=%Lu\n", __func__
, (unsigned long long)*fileid
);
2848 print_overflow_msg(__func__
, xdr
);
2852 static int decode_attr_mounted_on_fileid(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *fileid
)
2858 if (unlikely(bitmap
[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID
- 1U)))
2860 if (likely(bitmap
[1] & FATTR4_WORD1_MOUNTED_ON_FILEID
)) {
2861 p
= xdr_inline_decode(xdr
, 8);
2864 xdr_decode_hyper(p
, fileid
);
2865 bitmap
[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID
;
2866 ret
= NFS_ATTR_FATTR_FILEID
;
2868 dprintk("%s: fileid=%Lu\n", __func__
, (unsigned long long)*fileid
);
2871 print_overflow_msg(__func__
, xdr
);
2875 static int decode_attr_files_avail(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
2881 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_AVAIL
- 1U)))
2883 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_AVAIL
)) {
2884 p
= xdr_inline_decode(xdr
, 8);
2887 xdr_decode_hyper(p
, res
);
2888 bitmap
[0] &= ~FATTR4_WORD0_FILES_AVAIL
;
2890 dprintk("%s: files avail=%Lu\n", __func__
, (unsigned long long)*res
);
2893 print_overflow_msg(__func__
, xdr
);
2897 static int decode_attr_files_free(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
2903 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_FREE
- 1U)))
2905 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_FREE
)) {
2906 p
= xdr_inline_decode(xdr
, 8);
2909 xdr_decode_hyper(p
, res
);
2910 bitmap
[0] &= ~FATTR4_WORD0_FILES_FREE
;
2912 dprintk("%s: files free=%Lu\n", __func__
, (unsigned long long)*res
);
2915 print_overflow_msg(__func__
, xdr
);
2919 static int decode_attr_files_total(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
2925 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_TOTAL
- 1U)))
2927 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_TOTAL
)) {
2928 p
= xdr_inline_decode(xdr
, 8);
2931 xdr_decode_hyper(p
, res
);
2932 bitmap
[0] &= ~FATTR4_WORD0_FILES_TOTAL
;
2934 dprintk("%s: files total=%Lu\n", __func__
, (unsigned long long)*res
);
2937 print_overflow_msg(__func__
, xdr
);
2941 static int decode_pathname(struct xdr_stream
*xdr
, struct nfs4_pathname
*path
)
2947 p
= xdr_inline_decode(xdr
, 4);
2950 n
= be32_to_cpup(p
);
2954 path
->ncomponents
= 0;
2955 while (path
->ncomponents
< n
) {
2956 struct nfs4_string
*component
= &path
->components
[path
->ncomponents
];
2957 status
= decode_opaque_inline(xdr
, &component
->len
, &component
->data
);
2958 if (unlikely(status
!= 0))
2960 if (path
->ncomponents
!= n
)
2962 dprintk("%s", component
->data
);
2963 if (path
->ncomponents
< NFS4_PATHNAME_MAXCOMPONENTS
)
2964 path
->ncomponents
++;
2966 dprintk("cannot parse %d components in path\n", n
);
2974 /* a root pathname is sent as a zero component4 */
2975 path
->ncomponents
= 1;
2976 path
->components
[0].len
=0;
2977 path
->components
[0].data
=NULL
;
2978 dprintk("path /\n");
2981 dprintk(" status %d", status
);
2985 print_overflow_msg(__func__
, xdr
);
2989 static int decode_attr_fs_locations(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct nfs4_fs_locations
*res
)
2995 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FS_LOCATIONS
-1U)))
2998 if (unlikely(!(bitmap
[0] & FATTR4_WORD0_FS_LOCATIONS
)))
3000 dprintk("%s: fsroot ", __func__
);
3001 status
= decode_pathname(xdr
, &res
->fs_path
);
3002 if (unlikely(status
!= 0))
3004 p
= xdr_inline_decode(xdr
, 4);
3007 n
= be32_to_cpup(p
);
3010 res
->nlocations
= 0;
3011 while (res
->nlocations
< n
) {
3013 struct nfs4_fs_location
*loc
= &res
->locations
[res
->nlocations
];
3015 p
= xdr_inline_decode(xdr
, 4);
3018 m
= be32_to_cpup(p
);
3021 dprintk("%s: servers ", __func__
);
3022 while (loc
->nservers
< m
) {
3023 struct nfs4_string
*server
= &loc
->servers
[loc
->nservers
];
3024 status
= decode_opaque_inline(xdr
, &server
->len
, &server
->data
);
3025 if (unlikely(status
!= 0))
3027 dprintk("%s ", server
->data
);
3028 if (loc
->nservers
< NFS4_FS_LOCATION_MAXSERVERS
)
3032 dprintk("%s: using first %u of %u servers "
3033 "returned for location %u\n",
3035 NFS4_FS_LOCATION_MAXSERVERS
,
3036 m
, res
->nlocations
);
3037 for (i
= loc
->nservers
; i
< m
; i
++) {
3040 status
= decode_opaque_inline(xdr
, &len
, &data
);
3041 if (unlikely(status
!= 0))
3046 status
= decode_pathname(xdr
, &loc
->rootpath
);
3047 if (unlikely(status
!= 0))
3049 if (res
->nlocations
< NFS4_FS_LOCATIONS_MAXENTRIES
)
3052 if (res
->nlocations
!= 0)
3053 status
= NFS_ATTR_FATTR_V4_REFERRAL
;
3055 dprintk("%s: fs_locations done, error = %d\n", __func__
, status
);
3058 print_overflow_msg(__func__
, xdr
);
3064 static int decode_attr_maxfilesize(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3070 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXFILESIZE
- 1U)))
3072 if (likely(bitmap
[0] & FATTR4_WORD0_MAXFILESIZE
)) {
3073 p
= xdr_inline_decode(xdr
, 8);
3076 xdr_decode_hyper(p
, res
);
3077 bitmap
[0] &= ~FATTR4_WORD0_MAXFILESIZE
;
3079 dprintk("%s: maxfilesize=%Lu\n", __func__
, (unsigned long long)*res
);
3082 print_overflow_msg(__func__
, xdr
);
3086 static int decode_attr_maxlink(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *maxlink
)
3092 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXLINK
- 1U)))
3094 if (likely(bitmap
[0] & FATTR4_WORD0_MAXLINK
)) {
3095 p
= xdr_inline_decode(xdr
, 4);
3098 *maxlink
= be32_to_cpup(p
);
3099 bitmap
[0] &= ~FATTR4_WORD0_MAXLINK
;
3101 dprintk("%s: maxlink=%u\n", __func__
, *maxlink
);
3104 print_overflow_msg(__func__
, xdr
);
3108 static int decode_attr_maxname(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *maxname
)
3114 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXNAME
- 1U)))
3116 if (likely(bitmap
[0] & FATTR4_WORD0_MAXNAME
)) {
3117 p
= xdr_inline_decode(xdr
, 4);
3120 *maxname
= be32_to_cpup(p
);
3121 bitmap
[0] &= ~FATTR4_WORD0_MAXNAME
;
3123 dprintk("%s: maxname=%u\n", __func__
, *maxname
);
3126 print_overflow_msg(__func__
, xdr
);
3130 static int decode_attr_maxread(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3136 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXREAD
- 1U)))
3138 if (likely(bitmap
[0] & FATTR4_WORD0_MAXREAD
)) {
3140 p
= xdr_inline_decode(xdr
, 8);
3143 xdr_decode_hyper(p
, &maxread
);
3144 if (maxread
> 0x7FFFFFFF)
3145 maxread
= 0x7FFFFFFF;
3146 *res
= (uint32_t)maxread
;
3147 bitmap
[0] &= ~FATTR4_WORD0_MAXREAD
;
3149 dprintk("%s: maxread=%lu\n", __func__
, (unsigned long)*res
);
3152 print_overflow_msg(__func__
, xdr
);
3156 static int decode_attr_maxwrite(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3162 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXWRITE
- 1U)))
3164 if (likely(bitmap
[0] & FATTR4_WORD0_MAXWRITE
)) {
3166 p
= xdr_inline_decode(xdr
, 8);
3169 xdr_decode_hyper(p
, &maxwrite
);
3170 if (maxwrite
> 0x7FFFFFFF)
3171 maxwrite
= 0x7FFFFFFF;
3172 *res
= (uint32_t)maxwrite
;
3173 bitmap
[0] &= ~FATTR4_WORD0_MAXWRITE
;
3175 dprintk("%s: maxwrite=%lu\n", __func__
, (unsigned long)*res
);
3178 print_overflow_msg(__func__
, xdr
);
3182 static int decode_attr_mode(struct xdr_stream
*xdr
, uint32_t *bitmap
, umode_t
*mode
)
3189 if (unlikely(bitmap
[1] & (FATTR4_WORD1_MODE
- 1U)))
3191 if (likely(bitmap
[1] & FATTR4_WORD1_MODE
)) {
3192 p
= xdr_inline_decode(xdr
, 4);
3195 tmp
= be32_to_cpup(p
);
3196 *mode
= tmp
& ~S_IFMT
;
3197 bitmap
[1] &= ~FATTR4_WORD1_MODE
;
3198 ret
= NFS_ATTR_FATTR_MODE
;
3200 dprintk("%s: file mode=0%o\n", __func__
, (unsigned int)*mode
);
3203 print_overflow_msg(__func__
, xdr
);
3207 static int decode_attr_nlink(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *nlink
)
3213 if (unlikely(bitmap
[1] & (FATTR4_WORD1_NUMLINKS
- 1U)))
3215 if (likely(bitmap
[1] & FATTR4_WORD1_NUMLINKS
)) {
3216 p
= xdr_inline_decode(xdr
, 4);
3219 *nlink
= be32_to_cpup(p
);
3220 bitmap
[1] &= ~FATTR4_WORD1_NUMLINKS
;
3221 ret
= NFS_ATTR_FATTR_NLINK
;
3223 dprintk("%s: nlink=%u\n", __func__
, (unsigned int)*nlink
);
3226 print_overflow_msg(__func__
, xdr
);
3230 static int decode_attr_owner(struct xdr_stream
*xdr
, uint32_t *bitmap
,
3231 struct nfs_client
*clp
, uint32_t *uid
, int may_sleep
)
3238 if (unlikely(bitmap
[1] & (FATTR4_WORD1_OWNER
- 1U)))
3240 if (likely(bitmap
[1] & FATTR4_WORD1_OWNER
)) {
3241 p
= xdr_inline_decode(xdr
, 4);
3244 len
= be32_to_cpup(p
);
3245 p
= xdr_inline_decode(xdr
, len
);
3250 } else if (len
< XDR_MAX_NETOBJ
) {
3251 if (nfs_map_name_to_uid(clp
, (char *)p
, len
, uid
) == 0)
3252 ret
= NFS_ATTR_FATTR_OWNER
;
3254 dprintk("%s: nfs_map_name_to_uid failed!\n",
3257 dprintk("%s: name too long (%u)!\n",
3259 bitmap
[1] &= ~FATTR4_WORD1_OWNER
;
3261 dprintk("%s: uid=%d\n", __func__
, (int)*uid
);
3264 print_overflow_msg(__func__
, xdr
);
3268 static int decode_attr_group(struct xdr_stream
*xdr
, uint32_t *bitmap
,
3269 struct nfs_client
*clp
, uint32_t *gid
, int may_sleep
)
3276 if (unlikely(bitmap
[1] & (FATTR4_WORD1_OWNER_GROUP
- 1U)))
3278 if (likely(bitmap
[1] & FATTR4_WORD1_OWNER_GROUP
)) {
3279 p
= xdr_inline_decode(xdr
, 4);
3282 len
= be32_to_cpup(p
);
3283 p
= xdr_inline_decode(xdr
, len
);
3288 } else if (len
< XDR_MAX_NETOBJ
) {
3289 if (nfs_map_group_to_gid(clp
, (char *)p
, len
, gid
) == 0)
3290 ret
= NFS_ATTR_FATTR_GROUP
;
3292 dprintk("%s: nfs_map_group_to_gid failed!\n",
3295 dprintk("%s: name too long (%u)!\n",
3297 bitmap
[1] &= ~FATTR4_WORD1_OWNER_GROUP
;
3299 dprintk("%s: gid=%d\n", __func__
, (int)*gid
);
3302 print_overflow_msg(__func__
, xdr
);
3306 static int decode_attr_rdev(struct xdr_stream
*xdr
, uint32_t *bitmap
, dev_t
*rdev
)
3308 uint32_t major
= 0, minor
= 0;
3313 if (unlikely(bitmap
[1] & (FATTR4_WORD1_RAWDEV
- 1U)))
3315 if (likely(bitmap
[1] & FATTR4_WORD1_RAWDEV
)) {
3318 p
= xdr_inline_decode(xdr
, 8);
3321 major
= be32_to_cpup(p
++);
3322 minor
= be32_to_cpup(p
);
3323 tmp
= MKDEV(major
, minor
);
3324 if (MAJOR(tmp
) == major
&& MINOR(tmp
) == minor
)
3326 bitmap
[1] &= ~ FATTR4_WORD1_RAWDEV
;
3327 ret
= NFS_ATTR_FATTR_RDEV
;
3329 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__
, major
, minor
);
3332 print_overflow_msg(__func__
, xdr
);
3336 static int decode_attr_space_avail(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3342 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_AVAIL
- 1U)))
3344 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_AVAIL
)) {
3345 p
= xdr_inline_decode(xdr
, 8);
3348 xdr_decode_hyper(p
, res
);
3349 bitmap
[1] &= ~FATTR4_WORD1_SPACE_AVAIL
;
3351 dprintk("%s: space avail=%Lu\n", __func__
, (unsigned long long)*res
);
3354 print_overflow_msg(__func__
, xdr
);
3358 static int decode_attr_space_free(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3364 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_FREE
- 1U)))
3366 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_FREE
)) {
3367 p
= xdr_inline_decode(xdr
, 8);
3370 xdr_decode_hyper(p
, res
);
3371 bitmap
[1] &= ~FATTR4_WORD1_SPACE_FREE
;
3373 dprintk("%s: space free=%Lu\n", __func__
, (unsigned long long)*res
);
3376 print_overflow_msg(__func__
, xdr
);
3380 static int decode_attr_space_total(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3386 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_TOTAL
- 1U)))
3388 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_TOTAL
)) {
3389 p
= xdr_inline_decode(xdr
, 8);
3392 xdr_decode_hyper(p
, res
);
3393 bitmap
[1] &= ~FATTR4_WORD1_SPACE_TOTAL
;
3395 dprintk("%s: space total=%Lu\n", __func__
, (unsigned long long)*res
);
3398 print_overflow_msg(__func__
, xdr
);
3402 static int decode_attr_space_used(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *used
)
3408 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_USED
- 1U)))
3410 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_USED
)) {
3411 p
= xdr_inline_decode(xdr
, 8);
3414 xdr_decode_hyper(p
, used
);
3415 bitmap
[1] &= ~FATTR4_WORD1_SPACE_USED
;
3416 ret
= NFS_ATTR_FATTR_SPACE_USED
;
3418 dprintk("%s: space used=%Lu\n", __func__
,
3419 (unsigned long long)*used
);
3422 print_overflow_msg(__func__
, xdr
);
3426 static int decode_attr_time(struct xdr_stream
*xdr
, struct timespec
*time
)
3432 p
= xdr_inline_decode(xdr
, 12);
3435 p
= xdr_decode_hyper(p
, &sec
);
3436 nsec
= be32_to_cpup(p
);
3437 time
->tv_sec
= (time_t)sec
;
3438 time
->tv_nsec
= (long)nsec
;
3441 print_overflow_msg(__func__
, xdr
);
3445 static int decode_attr_time_access(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec
*time
)
3451 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_ACCESS
- 1U)))
3453 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_ACCESS
)) {
3454 status
= decode_attr_time(xdr
, time
);
3456 status
= NFS_ATTR_FATTR_ATIME
;
3457 bitmap
[1] &= ~FATTR4_WORD1_TIME_ACCESS
;
3459 dprintk("%s: atime=%ld\n", __func__
, (long)time
->tv_sec
);
3463 static int decode_attr_time_metadata(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec
*time
)
3469 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_METADATA
- 1U)))
3471 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_METADATA
)) {
3472 status
= decode_attr_time(xdr
, time
);
3474 status
= NFS_ATTR_FATTR_CTIME
;
3475 bitmap
[1] &= ~FATTR4_WORD1_TIME_METADATA
;
3477 dprintk("%s: ctime=%ld\n", __func__
, (long)time
->tv_sec
);
3481 static int decode_attr_time_modify(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec
*time
)
3487 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_MODIFY
- 1U)))
3489 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_MODIFY
)) {
3490 status
= decode_attr_time(xdr
, time
);
3492 status
= NFS_ATTR_FATTR_MTIME
;
3493 bitmap
[1] &= ~FATTR4_WORD1_TIME_MODIFY
;
3495 dprintk("%s: mtime=%ld\n", __func__
, (long)time
->tv_sec
);
3499 static int verify_attr_len(struct xdr_stream
*xdr
, __be32
*savep
, uint32_t attrlen
)
3501 unsigned int attrwords
= XDR_QUADLEN(attrlen
);
3502 unsigned int nwords
= xdr
->p
- savep
;
3504 if (unlikely(attrwords
!= nwords
)) {
3505 dprintk("%s: server returned incorrect attribute length: "
3509 (attrwords
< nwords
) ? '<' : '>',
3516 static int decode_change_info(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
3520 p
= xdr_inline_decode(xdr
, 20);
3523 cinfo
->atomic
= be32_to_cpup(p
++);
3524 p
= xdr_decode_hyper(p
, &cinfo
->before
);
3525 xdr_decode_hyper(p
, &cinfo
->after
);
3528 print_overflow_msg(__func__
, xdr
);
3532 static int decode_access(struct xdr_stream
*xdr
, struct nfs4_accessres
*access
)
3538 status
= decode_op_hdr(xdr
, OP_ACCESS
);
3541 p
= xdr_inline_decode(xdr
, 8);
3544 supp
= be32_to_cpup(p
++);
3545 acc
= be32_to_cpup(p
);
3546 access
->supported
= supp
;
3547 access
->access
= acc
;
3550 print_overflow_msg(__func__
, xdr
);
3554 static int decode_opaque_fixed(struct xdr_stream
*xdr
, void *buf
, size_t len
)
3558 p
= xdr_inline_decode(xdr
, len
);
3560 memcpy(buf
, p
, len
);
3563 print_overflow_msg(__func__
, xdr
);
3567 static int decode_stateid(struct xdr_stream
*xdr
, nfs4_stateid
*stateid
)
3569 return decode_opaque_fixed(xdr
, stateid
->data
, NFS4_STATEID_SIZE
);
3572 static int decode_close(struct xdr_stream
*xdr
, struct nfs_closeres
*res
)
3576 status
= decode_op_hdr(xdr
, OP_CLOSE
);
3578 nfs_increment_open_seqid(status
, res
->seqid
);
3580 status
= decode_stateid(xdr
, &res
->stateid
);
3584 static int decode_verifier(struct xdr_stream
*xdr
, void *verifier
)
3586 return decode_opaque_fixed(xdr
, verifier
, 8);
3589 static int decode_commit(struct xdr_stream
*xdr
, struct nfs_writeres
*res
)
3593 status
= decode_op_hdr(xdr
, OP_COMMIT
);
3595 status
= decode_verifier(xdr
, res
->verf
->verifier
);
3599 static int decode_create(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
3605 status
= decode_op_hdr(xdr
, OP_CREATE
);
3608 if ((status
= decode_change_info(xdr
, cinfo
)))
3610 p
= xdr_inline_decode(xdr
, 4);
3613 bmlen
= be32_to_cpup(p
);
3614 p
= xdr_inline_decode(xdr
, bmlen
<< 2);
3618 print_overflow_msg(__func__
, xdr
);
3622 static int decode_server_caps(struct xdr_stream
*xdr
, struct nfs4_server_caps_res
*res
)
3625 uint32_t attrlen
, bitmap
[2] = {0};
3628 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
3630 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
3632 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
3634 if ((status
= decode_attr_supported(xdr
, bitmap
, res
->attr_bitmask
)) != 0)
3636 if ((status
= decode_attr_link_support(xdr
, bitmap
, &res
->has_links
)) != 0)
3638 if ((status
= decode_attr_symlink_support(xdr
, bitmap
, &res
->has_symlinks
)) != 0)
3640 if ((status
= decode_attr_aclsupport(xdr
, bitmap
, &res
->acl_bitmask
)) != 0)
3642 status
= verify_attr_len(xdr
, savep
, attrlen
);
3644 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
3648 static int decode_statfs(struct xdr_stream
*xdr
, struct nfs_fsstat
*fsstat
)
3651 uint32_t attrlen
, bitmap
[2] = {0};
3654 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
3656 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
3658 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
3661 if ((status
= decode_attr_files_avail(xdr
, bitmap
, &fsstat
->afiles
)) != 0)
3663 if ((status
= decode_attr_files_free(xdr
, bitmap
, &fsstat
->ffiles
)) != 0)
3665 if ((status
= decode_attr_files_total(xdr
, bitmap
, &fsstat
->tfiles
)) != 0)
3667 if ((status
= decode_attr_space_avail(xdr
, bitmap
, &fsstat
->abytes
)) != 0)
3669 if ((status
= decode_attr_space_free(xdr
, bitmap
, &fsstat
->fbytes
)) != 0)
3671 if ((status
= decode_attr_space_total(xdr
, bitmap
, &fsstat
->tbytes
)) != 0)
3674 status
= verify_attr_len(xdr
, savep
, attrlen
);
3676 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
3680 static int decode_pathconf(struct xdr_stream
*xdr
, struct nfs_pathconf
*pathconf
)
3683 uint32_t attrlen
, bitmap
[2] = {0};
3686 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
3688 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
3690 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
3693 if ((status
= decode_attr_maxlink(xdr
, bitmap
, &pathconf
->max_link
)) != 0)
3695 if ((status
= decode_attr_maxname(xdr
, bitmap
, &pathconf
->max_namelen
)) != 0)
3698 status
= verify_attr_len(xdr
, savep
, attrlen
);
3700 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
3704 static int decode_getfattr(struct xdr_stream
*xdr
, struct nfs_fattr
*fattr
,
3705 const struct nfs_server
*server
, int may_sleep
)
3715 status
= decode_op_hdr(xdr
, OP_GETATTR
);
3719 status
= decode_attr_bitmap(xdr
, bitmap
);
3723 status
= decode_attr_length(xdr
, &attrlen
, &savep
);
3728 status
= decode_attr_type(xdr
, bitmap
, &type
);
3733 fattr
->mode
|= nfs_type2fmt
[type
];
3734 fattr
->valid
|= status
;
3737 status
= decode_attr_change(xdr
, bitmap
, &fattr
->change_attr
);
3740 fattr
->valid
|= status
;
3742 status
= decode_attr_size(xdr
, bitmap
, &fattr
->size
);
3745 fattr
->valid
|= status
;
3747 status
= decode_attr_fsid(xdr
, bitmap
, &fattr
->fsid
);
3750 fattr
->valid
|= status
;
3752 status
= decode_attr_fileid(xdr
, bitmap
, &fattr
->fileid
);
3755 fattr
->valid
|= status
;
3757 status
= decode_attr_fs_locations(xdr
, bitmap
, container_of(fattr
,
3758 struct nfs4_fs_locations
,
3762 fattr
->valid
|= status
;
3764 status
= decode_attr_mode(xdr
, bitmap
, &fmode
);
3768 fattr
->mode
|= fmode
;
3769 fattr
->valid
|= status
;
3772 status
= decode_attr_nlink(xdr
, bitmap
, &fattr
->nlink
);
3775 fattr
->valid
|= status
;
3777 status
= decode_attr_owner(xdr
, bitmap
, server
->nfs_client
,
3778 &fattr
->uid
, may_sleep
);
3781 fattr
->valid
|= status
;
3783 status
= decode_attr_group(xdr
, bitmap
, server
->nfs_client
,
3784 &fattr
->gid
, may_sleep
);
3787 fattr
->valid
|= status
;
3789 status
= decode_attr_rdev(xdr
, bitmap
, &fattr
->rdev
);
3792 fattr
->valid
|= status
;
3794 status
= decode_attr_space_used(xdr
, bitmap
, &fattr
->du
.nfs3
.used
);
3797 fattr
->valid
|= status
;
3799 status
= decode_attr_time_access(xdr
, bitmap
, &fattr
->atime
);
3802 fattr
->valid
|= status
;
3804 status
= decode_attr_time_metadata(xdr
, bitmap
, &fattr
->ctime
);
3807 fattr
->valid
|= status
;
3809 status
= decode_attr_time_modify(xdr
, bitmap
, &fattr
->mtime
);
3812 fattr
->valid
|= status
;
3814 status
= decode_attr_mounted_on_fileid(xdr
, bitmap
, &fileid
);
3817 if (status
!= 0 && !(fattr
->valid
& status
)) {
3818 fattr
->fileid
= fileid
;
3819 fattr
->valid
|= status
;
3822 status
= verify_attr_len(xdr
, savep
, attrlen
);
3824 dprintk("%s: xdr returned %d\n", __func__
, -status
);
3829 static int decode_fsinfo(struct xdr_stream
*xdr
, struct nfs_fsinfo
*fsinfo
)
3832 uint32_t attrlen
, bitmap
[2];
3835 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
3837 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
3839 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
3842 fsinfo
->rtmult
= fsinfo
->wtmult
= 512; /* ??? */
3844 if ((status
= decode_attr_lease_time(xdr
, bitmap
, &fsinfo
->lease_time
)) != 0)
3846 if ((status
= decode_attr_maxfilesize(xdr
, bitmap
, &fsinfo
->maxfilesize
)) != 0)
3848 if ((status
= decode_attr_maxread(xdr
, bitmap
, &fsinfo
->rtmax
)) != 0)
3850 fsinfo
->rtpref
= fsinfo
->dtpref
= fsinfo
->rtmax
;
3851 if ((status
= decode_attr_maxwrite(xdr
, bitmap
, &fsinfo
->wtmax
)) != 0)
3853 fsinfo
->wtpref
= fsinfo
->wtmax
;
3855 status
= verify_attr_len(xdr
, savep
, attrlen
);
3857 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
3861 static int decode_getfh(struct xdr_stream
*xdr
, struct nfs_fh
*fh
)
3867 /* Zero handle first to allow comparisons */
3868 memset(fh
, 0, sizeof(*fh
));
3870 status
= decode_op_hdr(xdr
, OP_GETFH
);
3874 p
= xdr_inline_decode(xdr
, 4);
3877 len
= be32_to_cpup(p
);
3878 if (len
> NFS4_FHSIZE
)
3881 p
= xdr_inline_decode(xdr
, len
);
3884 memcpy(fh
->data
, p
, len
);
3887 print_overflow_msg(__func__
, xdr
);
3891 static int decode_link(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
3895 status
= decode_op_hdr(xdr
, OP_LINK
);
3898 return decode_change_info(xdr
, cinfo
);
3902 * We create the owner, so we know a proper owner.id length is 4.
3904 static int decode_lock_denied (struct xdr_stream
*xdr
, struct file_lock
*fl
)
3906 uint64_t offset
, length
, clientid
;
3908 uint32_t namelen
, type
;
3910 p
= xdr_inline_decode(xdr
, 32);
3913 p
= xdr_decode_hyper(p
, &offset
);
3914 p
= xdr_decode_hyper(p
, &length
);
3915 type
= be32_to_cpup(p
++);
3917 fl
->fl_start
= (loff_t
)offset
;
3918 fl
->fl_end
= fl
->fl_start
+ (loff_t
)length
- 1;
3919 if (length
== ~(uint64_t)0)
3920 fl
->fl_end
= OFFSET_MAX
;
3921 fl
->fl_type
= F_WRLCK
;
3923 fl
->fl_type
= F_RDLCK
;
3926 p
= xdr_decode_hyper(p
, &clientid
);
3927 namelen
= be32_to_cpup(p
);
3928 p
= xdr_inline_decode(xdr
, namelen
);
3930 return -NFS4ERR_DENIED
;
3932 print_overflow_msg(__func__
, xdr
);
3936 static int decode_lock(struct xdr_stream
*xdr
, struct nfs_lock_res
*res
)
3940 status
= decode_op_hdr(xdr
, OP_LOCK
);
3944 status
= decode_stateid(xdr
, &res
->stateid
);
3945 if (unlikely(status
))
3947 } else if (status
== -NFS4ERR_DENIED
)
3948 status
= decode_lock_denied(xdr
, NULL
);
3949 if (res
->open_seqid
!= NULL
)
3950 nfs_increment_open_seqid(status
, res
->open_seqid
);
3951 nfs_increment_lock_seqid(status
, res
->lock_seqid
);
3956 static int decode_lockt(struct xdr_stream
*xdr
, struct nfs_lockt_res
*res
)
3959 status
= decode_op_hdr(xdr
, OP_LOCKT
);
3960 if (status
== -NFS4ERR_DENIED
)
3961 return decode_lock_denied(xdr
, res
->denied
);
3965 static int decode_locku(struct xdr_stream
*xdr
, struct nfs_locku_res
*res
)
3969 status
= decode_op_hdr(xdr
, OP_LOCKU
);
3971 nfs_increment_lock_seqid(status
, res
->seqid
);
3973 status
= decode_stateid(xdr
, &res
->stateid
);
3977 static int decode_lookup(struct xdr_stream
*xdr
)
3979 return decode_op_hdr(xdr
, OP_LOOKUP
);
3982 /* This is too sick! */
3983 static int decode_space_limit(struct xdr_stream
*xdr
, u64
*maxsize
)
3986 uint32_t limit_type
, nblocks
, blocksize
;
3988 p
= xdr_inline_decode(xdr
, 12);
3991 limit_type
= be32_to_cpup(p
++);
3992 switch (limit_type
) {
3994 xdr_decode_hyper(p
, maxsize
);
3997 nblocks
= be32_to_cpup(p
++);
3998 blocksize
= be32_to_cpup(p
);
3999 *maxsize
= (uint64_t)nblocks
* (uint64_t)blocksize
;
4003 print_overflow_msg(__func__
, xdr
);
4007 static int decode_delegation(struct xdr_stream
*xdr
, struct nfs_openres
*res
)
4010 uint32_t delegation_type
;
4013 p
= xdr_inline_decode(xdr
, 4);
4016 delegation_type
= be32_to_cpup(p
);
4017 if (delegation_type
== NFS4_OPEN_DELEGATE_NONE
) {
4018 res
->delegation_type
= 0;
4021 status
= decode_stateid(xdr
, &res
->delegation
);
4022 if (unlikely(status
))
4024 p
= xdr_inline_decode(xdr
, 4);
4027 res
->do_recall
= be32_to_cpup(p
);
4029 switch (delegation_type
) {
4030 case NFS4_OPEN_DELEGATE_READ
:
4031 res
->delegation_type
= FMODE_READ
;
4033 case NFS4_OPEN_DELEGATE_WRITE
:
4034 res
->delegation_type
= FMODE_WRITE
|FMODE_READ
;
4035 if (decode_space_limit(xdr
, &res
->maxsize
) < 0)
4038 return decode_ace(xdr
, NULL
, res
->server
->nfs_client
);
4040 print_overflow_msg(__func__
, xdr
);
4044 static int decode_open(struct xdr_stream
*xdr
, struct nfs_openres
*res
)
4047 uint32_t savewords
, bmlen
, i
;
4050 status
= decode_op_hdr(xdr
, OP_OPEN
);
4052 nfs_increment_open_seqid(status
, res
->seqid
);
4054 status
= decode_stateid(xdr
, &res
->stateid
);
4055 if (unlikely(status
))
4058 decode_change_info(xdr
, &res
->cinfo
);
4060 p
= xdr_inline_decode(xdr
, 8);
4063 res
->rflags
= be32_to_cpup(p
++);
4064 bmlen
= be32_to_cpup(p
);
4068 p
= xdr_inline_decode(xdr
, bmlen
<< 2);
4071 savewords
= min_t(uint32_t, bmlen
, NFS4_BITMAP_SIZE
);
4072 for (i
= 0; i
< savewords
; ++i
)
4073 res
->attrset
[i
] = be32_to_cpup(p
++);
4074 for (; i
< NFS4_BITMAP_SIZE
; i
++)
4075 res
->attrset
[i
] = 0;
4077 return decode_delegation(xdr
, res
);
4079 dprintk("%s: Bitmap too large! Length = %u\n", __func__
, bmlen
);
4082 print_overflow_msg(__func__
, xdr
);
4086 static int decode_open_confirm(struct xdr_stream
*xdr
, struct nfs_open_confirmres
*res
)
4090 status
= decode_op_hdr(xdr
, OP_OPEN_CONFIRM
);
4092 nfs_increment_open_seqid(status
, res
->seqid
);
4094 status
= decode_stateid(xdr
, &res
->stateid
);
4098 static int decode_open_downgrade(struct xdr_stream
*xdr
, struct nfs_closeres
*res
)
4102 status
= decode_op_hdr(xdr
, OP_OPEN_DOWNGRADE
);
4104 nfs_increment_open_seqid(status
, res
->seqid
);
4106 status
= decode_stateid(xdr
, &res
->stateid
);
4110 static int decode_putfh(struct xdr_stream
*xdr
)
4112 return decode_op_hdr(xdr
, OP_PUTFH
);
4115 static int decode_putrootfh(struct xdr_stream
*xdr
)
4117 return decode_op_hdr(xdr
, OP_PUTROOTFH
);
4120 static int decode_read(struct xdr_stream
*xdr
, struct rpc_rqst
*req
, struct nfs_readres
*res
)
4122 struct kvec
*iov
= req
->rq_rcv_buf
.head
;
4124 uint32_t count
, eof
, recvd
, hdrlen
;
4127 status
= decode_op_hdr(xdr
, OP_READ
);
4130 p
= xdr_inline_decode(xdr
, 8);
4133 eof
= be32_to_cpup(p
++);
4134 count
= be32_to_cpup(p
);
4135 hdrlen
= (u8
*) p
- (u8
*) iov
->iov_base
;
4136 recvd
= req
->rq_rcv_buf
.len
- hdrlen
;
4137 if (count
> recvd
) {
4138 dprintk("NFS: server cheating in read reply: "
4139 "count %u > recvd %u\n", count
, recvd
);
4143 xdr_read_pages(xdr
, count
);
4148 print_overflow_msg(__func__
, xdr
);
4152 static int decode_readdir(struct xdr_stream
*xdr
, struct rpc_rqst
*req
, struct nfs4_readdir_res
*readdir
)
4154 struct xdr_buf
*rcvbuf
= &req
->rq_rcv_buf
;
4155 struct page
*page
= *rcvbuf
->pages
;
4156 struct kvec
*iov
= rcvbuf
->head
;
4158 u32 recvd
, pglen
= rcvbuf
->page_len
;
4159 __be32
*end
, *entry
, *p
, *kaddr
;
4160 unsigned int nr
= 0;
4163 status
= decode_op_hdr(xdr
, OP_READDIR
);
4165 status
= decode_verifier(xdr
, readdir
->verifier
.data
);
4166 if (unlikely(status
))
4168 dprintk("%s: verifier = %08x:%08x\n",
4170 ((u32
*)readdir
->verifier
.data
)[0],
4171 ((u32
*)readdir
->verifier
.data
)[1]);
4174 hdrlen
= (char *) xdr
->p
- (char *) iov
->iov_base
;
4175 recvd
= rcvbuf
->len
- hdrlen
;
4178 xdr_read_pages(xdr
, pglen
);
4180 BUG_ON(pglen
+ readdir
->pgbase
> PAGE_CACHE_SIZE
);
4181 kaddr
= p
= kmap_atomic(page
, KM_USER0
);
4182 end
= p
+ ((pglen
+ readdir
->pgbase
) >> 2);
4185 /* Make sure the packet actually has a value_follows and EOF entry */
4186 if ((entry
+ 1) > end
)
4189 for (; *p
++; nr
++) {
4190 u32 len
, attrlen
, xlen
;
4193 dprintk("cookie = %Lu, ", *((unsigned long long *)p
));
4194 p
+= 2; /* cookie */
4195 len
= ntohl(*p
++); /* filename length */
4196 if (len
> NFS4_MAXNAMLEN
) {
4197 dprintk("NFS: giant filename in readdir (len 0x%x)\n",
4201 xlen
= XDR_QUADLEN(len
);
4202 if (end
- p
< xlen
+ 1)
4204 dprintk("filename = %*s\n", len
, (char *)p
);
4206 len
= ntohl(*p
++); /* bitmap length */
4207 if (end
- p
< len
+ 1)
4210 attrlen
= XDR_QUADLEN(ntohl(*p
++));
4211 if (end
- p
< attrlen
+ 2)
4213 p
+= attrlen
; /* attributes */
4217 * Apparently some server sends responses that are a valid size, but
4218 * contain no entries, and have value_follows==0 and EOF==0. For
4219 * those, just set the EOF marker.
4221 if (!nr
&& entry
[1] == 0) {
4222 dprintk("NFS: readdir reply truncated!\n");
4226 kunmap_atomic(kaddr
, KM_USER0
);
4230 * When we get a short packet there are 2 possibilities. We can
4231 * return an error, or fix up the response to look like a valid
4232 * response and return what we have so far. If there are no
4233 * entries and the packet was short, then return -EIO. If there
4234 * are valid entries in the response, return them and pretend that
4235 * the call was successful, but incomplete. The caller can retry the
4236 * readdir starting at the last cookie.
4238 dprintk("%s: short packet at entry %d\n", __func__
, nr
);
4239 entry
[0] = entry
[1] = 0;
4243 kunmap_atomic(kaddr
, KM_USER0
);
4244 return -errno_NFSERR_IO
;
4247 static int decode_readlink(struct xdr_stream
*xdr
, struct rpc_rqst
*req
)
4249 struct xdr_buf
*rcvbuf
= &req
->rq_rcv_buf
;
4250 struct kvec
*iov
= rcvbuf
->head
;
4257 status
= decode_op_hdr(xdr
, OP_READLINK
);
4261 /* Convert length of symlink */
4262 p
= xdr_inline_decode(xdr
, 4);
4265 len
= be32_to_cpup(p
);
4266 if (len
>= rcvbuf
->page_len
|| len
<= 0) {
4267 dprintk("nfs: server returned giant symlink!\n");
4268 return -ENAMETOOLONG
;
4270 hdrlen
= (char *) xdr
->p
- (char *) iov
->iov_base
;
4271 recvd
= req
->rq_rcv_buf
.len
- hdrlen
;
4273 dprintk("NFS: server cheating in readlink reply: "
4274 "count %u > recvd %u\n", len
, recvd
);
4277 xdr_read_pages(xdr
, len
);
4279 * The XDR encode routine has set things up so that
4280 * the link text will be copied directly into the
4281 * buffer. We just have to do overflow-checking,
4282 * and and null-terminate the text (the VFS expects
4283 * null-termination).
4285 kaddr
= (char *)kmap_atomic(rcvbuf
->pages
[0], KM_USER0
);
4286 kaddr
[len
+rcvbuf
->page_base
] = '\0';
4287 kunmap_atomic(kaddr
, KM_USER0
);
4290 print_overflow_msg(__func__
, xdr
);
4294 static int decode_remove(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
4298 status
= decode_op_hdr(xdr
, OP_REMOVE
);
4301 status
= decode_change_info(xdr
, cinfo
);
4306 static int decode_rename(struct xdr_stream
*xdr
, struct nfs4_change_info
*old_cinfo
,
4307 struct nfs4_change_info
*new_cinfo
)
4311 status
= decode_op_hdr(xdr
, OP_RENAME
);
4314 if ((status
= decode_change_info(xdr
, old_cinfo
)))
4316 status
= decode_change_info(xdr
, new_cinfo
);
4321 static int decode_renew(struct xdr_stream
*xdr
)
4323 return decode_op_hdr(xdr
, OP_RENEW
);
4327 decode_restorefh(struct xdr_stream
*xdr
)
4329 return decode_op_hdr(xdr
, OP_RESTOREFH
);
4332 static int decode_getacl(struct xdr_stream
*xdr
, struct rpc_rqst
*req
,
4338 struct kvec
*iov
= req
->rq_rcv_buf
.head
;
4342 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
4344 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
4346 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
4349 if (unlikely(bitmap
[0] & (FATTR4_WORD0_ACL
- 1U)))
4351 if (likely(bitmap
[0] & FATTR4_WORD0_ACL
)) {
4355 /* We ignore &savep and don't do consistency checks on
4356 * the attr length. Let userspace figure it out.... */
4357 hdrlen
= (u8
*)xdr
->p
- (u8
*)iov
->iov_base
;
4358 recvd
= req
->rq_rcv_buf
.len
- hdrlen
;
4359 if (attrlen
> recvd
) {
4360 dprintk("NFS: server cheating in getattr"
4361 " acl reply: attrlen %u > recvd %u\n",
4365 xdr_read_pages(xdr
, attrlen
);
4368 status
= -EOPNOTSUPP
;
4375 decode_savefh(struct xdr_stream
*xdr
)
4377 return decode_op_hdr(xdr
, OP_SAVEFH
);
4380 static int decode_setattr(struct xdr_stream
*xdr
)
4386 status
= decode_op_hdr(xdr
, OP_SETATTR
);
4389 p
= xdr_inline_decode(xdr
, 4);
4392 bmlen
= be32_to_cpup(p
);
4393 p
= xdr_inline_decode(xdr
, bmlen
<< 2);
4397 print_overflow_msg(__func__
, xdr
);
4401 static int decode_setclientid(struct xdr_stream
*xdr
, struct nfs_client
*clp
)
4407 p
= xdr_inline_decode(xdr
, 8);
4410 opnum
= be32_to_cpup(p
++);
4411 if (opnum
!= OP_SETCLIENTID
) {
4412 dprintk("nfs: decode_setclientid: Server returned operation"
4416 nfserr
= be32_to_cpup(p
);
4417 if (nfserr
== NFS_OK
) {
4418 p
= xdr_inline_decode(xdr
, 8 + NFS4_VERIFIER_SIZE
);
4421 p
= xdr_decode_hyper(p
, &clp
->cl_clientid
);
4422 memcpy(clp
->cl_confirm
.data
, p
, NFS4_VERIFIER_SIZE
);
4423 } else if (nfserr
== NFSERR_CLID_INUSE
) {
4426 /* skip netid string */
4427 p
= xdr_inline_decode(xdr
, 4);
4430 len
= be32_to_cpup(p
);
4431 p
= xdr_inline_decode(xdr
, len
);
4435 /* skip uaddr string */
4436 p
= xdr_inline_decode(xdr
, 4);
4439 len
= be32_to_cpup(p
);
4440 p
= xdr_inline_decode(xdr
, len
);
4443 return -NFSERR_CLID_INUSE
;
4445 return nfs4_stat_to_errno(nfserr
);
4449 print_overflow_msg(__func__
, xdr
);
4453 static int decode_setclientid_confirm(struct xdr_stream
*xdr
)
4455 return decode_op_hdr(xdr
, OP_SETCLIENTID_CONFIRM
);
4458 static int decode_write(struct xdr_stream
*xdr
, struct nfs_writeres
*res
)
4463 status
= decode_op_hdr(xdr
, OP_WRITE
);
4467 p
= xdr_inline_decode(xdr
, 16);
4470 res
->count
= be32_to_cpup(p
++);
4471 res
->verf
->committed
= be32_to_cpup(p
++);
4472 memcpy(res
->verf
->verifier
, p
, 8);
4475 print_overflow_msg(__func__
, xdr
);
4479 static int decode_delegreturn(struct xdr_stream
*xdr
)
4481 return decode_op_hdr(xdr
, OP_DELEGRETURN
);
4484 #if defined(CONFIG_NFS_V4_1)
4485 static int decode_exchange_id(struct xdr_stream
*xdr
,
4486 struct nfs41_exchange_id_res
*res
)
4492 struct nfs_client
*clp
= res
->client
;
4494 status
= decode_op_hdr(xdr
, OP_EXCHANGE_ID
);
4498 p
= xdr_inline_decode(xdr
, 8);
4501 xdr_decode_hyper(p
, &clp
->cl_ex_clid
);
4502 p
= xdr_inline_decode(xdr
, 12);
4505 clp
->cl_seqid
= be32_to_cpup(p
++);
4506 clp
->cl_exchange_flags
= be32_to_cpup(p
++);
4508 /* We ask for SP4_NONE */
4509 dummy
= be32_to_cpup(p
);
4510 if (dummy
!= SP4_NONE
)
4513 /* Throw away minor_id */
4514 p
= xdr_inline_decode(xdr
, 8);
4518 /* Throw away Major id */
4519 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
4520 if (unlikely(status
))
4523 /* Throw away server_scope */
4524 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
4525 if (unlikely(status
))
4528 /* Throw away Implementation id array */
4529 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
4530 if (unlikely(status
))
4535 print_overflow_msg(__func__
, xdr
);
4539 static int decode_chan_attrs(struct xdr_stream
*xdr
,
4540 struct nfs4_channel_attrs
*attrs
)
4545 p
= xdr_inline_decode(xdr
, 28);
4548 attrs
->headerpadsz
= be32_to_cpup(p
++);
4549 attrs
->max_rqst_sz
= be32_to_cpup(p
++);
4550 attrs
->max_resp_sz
= be32_to_cpup(p
++);
4551 attrs
->max_resp_sz_cached
= be32_to_cpup(p
++);
4552 attrs
->max_ops
= be32_to_cpup(p
++);
4553 attrs
->max_reqs
= be32_to_cpup(p
++);
4554 nr_attrs
= be32_to_cpup(p
);
4555 if (unlikely(nr_attrs
> 1)) {
4556 printk(KERN_WARNING
"%s: Invalid rdma channel attrs count %u\n",
4557 __func__
, nr_attrs
);
4560 if (nr_attrs
== 1) {
4561 p
= xdr_inline_decode(xdr
, 4); /* skip rdma_attrs */
4567 print_overflow_msg(__func__
, xdr
);
4571 static int decode_sessionid(struct xdr_stream
*xdr
, struct nfs4_sessionid
*sid
)
4573 return decode_opaque_fixed(xdr
, sid
->data
, NFS4_MAX_SESSIONID_LEN
);
4576 static int decode_create_session(struct xdr_stream
*xdr
,
4577 struct nfs41_create_session_res
*res
)
4581 struct nfs_client
*clp
= res
->client
;
4582 struct nfs4_session
*session
= clp
->cl_session
;
4584 status
= decode_op_hdr(xdr
, OP_CREATE_SESSION
);
4586 status
= decode_sessionid(xdr
, &session
->sess_id
);
4587 if (unlikely(status
))
4591 p
= xdr_inline_decode(xdr
, 8);
4594 clp
->cl_seqid
= be32_to_cpup(p
++);
4595 session
->flags
= be32_to_cpup(p
);
4597 /* Channel attributes */
4598 status
= decode_chan_attrs(xdr
, &session
->fc_attrs
);
4600 status
= decode_chan_attrs(xdr
, &session
->bc_attrs
);
4603 print_overflow_msg(__func__
, xdr
);
4607 static int decode_destroy_session(struct xdr_stream
*xdr
, void *dummy
)
4609 return decode_op_hdr(xdr
, OP_DESTROY_SESSION
);
4612 static int decode_reclaim_complete(struct xdr_stream
*xdr
, void *dummy
)
4614 return decode_op_hdr(xdr
, OP_RECLAIM_COMPLETE
);
4616 #endif /* CONFIG_NFS_V4_1 */
4618 static int decode_sequence(struct xdr_stream
*xdr
,
4619 struct nfs4_sequence_res
*res
,
4620 struct rpc_rqst
*rqstp
)
4622 #if defined(CONFIG_NFS_V4_1)
4623 struct nfs4_slot
*slot
;
4624 struct nfs4_sessionid id
;
4629 if (!res
->sr_session
)
4632 status
= decode_op_hdr(xdr
, OP_SEQUENCE
);
4634 status
= decode_sessionid(xdr
, &id
);
4635 if (unlikely(status
))
4639 * If the server returns different values for sessionID, slotID or
4640 * sequence number, the server is looney tunes.
4642 status
= -EREMOTEIO
;
4644 if (memcmp(id
.data
, res
->sr_session
->sess_id
.data
,
4645 NFS4_MAX_SESSIONID_LEN
)) {
4646 dprintk("%s Invalid session id\n", __func__
);
4650 p
= xdr_inline_decode(xdr
, 20);
4655 slot
= &res
->sr_session
->fc_slot_table
.slots
[res
->sr_slotid
];
4656 dummy
= be32_to_cpup(p
++);
4657 if (dummy
!= slot
->seq_nr
) {
4658 dprintk("%s Invalid sequence number\n", __func__
);
4662 dummy
= be32_to_cpup(p
++);
4663 if (dummy
!= res
->sr_slotid
) {
4664 dprintk("%s Invalid slot id\n", __func__
);
4667 /* highest slot id - currently not processed */
4668 dummy
= be32_to_cpup(p
++);
4669 /* target highest slot id - currently not processed */
4670 dummy
= be32_to_cpup(p
++);
4672 res
->sr_status_flags
= be32_to_cpup(p
);
4675 res
->sr_status
= status
;
4678 print_overflow_msg(__func__
, xdr
);
4681 #else /* CONFIG_NFS_V4_1 */
4683 #endif /* CONFIG_NFS_V4_1 */
4687 * END OF "GENERIC" DECODE ROUTINES.
4691 * Decode OPEN_DOWNGRADE response
4693 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_closeres
*res
)
4695 struct xdr_stream xdr
;
4696 struct compound_hdr hdr
;
4699 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4700 status
= decode_compound_hdr(&xdr
, &hdr
);
4703 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
4706 status
= decode_putfh(&xdr
);
4709 status
= decode_open_downgrade(&xdr
, res
);
4712 decode_getfattr(&xdr
, res
->fattr
, res
->server
,
4713 !RPC_IS_ASYNC(rqstp
->rq_task
));
4719 * Decode ACCESS response
4721 static int nfs4_xdr_dec_access(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_accessres
*res
)
4723 struct xdr_stream xdr
;
4724 struct compound_hdr hdr
;
4727 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4728 status
= decode_compound_hdr(&xdr
, &hdr
);
4731 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
4734 status
= decode_putfh(&xdr
);
4737 status
= decode_access(&xdr
, res
);
4740 decode_getfattr(&xdr
, res
->fattr
, res
->server
,
4741 !RPC_IS_ASYNC(rqstp
->rq_task
));
4747 * Decode LOOKUP response
4749 static int nfs4_xdr_dec_lookup(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_lookup_res
*res
)
4751 struct xdr_stream xdr
;
4752 struct compound_hdr hdr
;
4755 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4756 status
= decode_compound_hdr(&xdr
, &hdr
);
4759 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
4762 if ((status
= decode_putfh(&xdr
)) != 0)
4764 if ((status
= decode_lookup(&xdr
)) != 0)
4766 if ((status
= decode_getfh(&xdr
, res
->fh
)) != 0)
4768 status
= decode_getfattr(&xdr
, res
->fattr
, res
->server
4769 ,!RPC_IS_ASYNC(rqstp
->rq_task
));
4775 * Decode LOOKUP_ROOT response
4777 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_lookup_res
*res
)
4779 struct xdr_stream xdr
;
4780 struct compound_hdr hdr
;
4783 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4784 status
= decode_compound_hdr(&xdr
, &hdr
);
4787 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
4790 if ((status
= decode_putrootfh(&xdr
)) != 0)
4792 if ((status
= decode_getfh(&xdr
, res
->fh
)) == 0)
4793 status
= decode_getfattr(&xdr
, res
->fattr
, res
->server
,
4794 !RPC_IS_ASYNC(rqstp
->rq_task
));
4800 * Decode REMOVE response
4802 static int nfs4_xdr_dec_remove(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_removeres
*res
)
4804 struct xdr_stream xdr
;
4805 struct compound_hdr hdr
;
4808 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4809 status
= decode_compound_hdr(&xdr
, &hdr
);
4812 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
4815 if ((status
= decode_putfh(&xdr
)) != 0)
4817 if ((status
= decode_remove(&xdr
, &res
->cinfo
)) != 0)
4819 decode_getfattr(&xdr
, &res
->dir_attr
, res
->server
,
4820 !RPC_IS_ASYNC(rqstp
->rq_task
));
4826 * Decode RENAME response
4828 static int nfs4_xdr_dec_rename(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_rename_res
*res
)
4830 struct xdr_stream xdr
;
4831 struct compound_hdr hdr
;
4834 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4835 status
= decode_compound_hdr(&xdr
, &hdr
);
4838 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
4841 if ((status
= decode_putfh(&xdr
)) != 0)
4843 if ((status
= decode_savefh(&xdr
)) != 0)
4845 if ((status
= decode_putfh(&xdr
)) != 0)
4847 if ((status
= decode_rename(&xdr
, &res
->old_cinfo
, &res
->new_cinfo
)) != 0)
4849 /* Current FH is target directory */
4850 if (decode_getfattr(&xdr
, res
->new_fattr
, res
->server
,
4851 !RPC_IS_ASYNC(rqstp
->rq_task
)) != 0)
4853 if ((status
= decode_restorefh(&xdr
)) != 0)
4855 decode_getfattr(&xdr
, res
->old_fattr
, res
->server
,
4856 !RPC_IS_ASYNC(rqstp
->rq_task
));
4862 * Decode LINK response
4864 static int nfs4_xdr_dec_link(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_link_res
*res
)
4866 struct xdr_stream xdr
;
4867 struct compound_hdr hdr
;
4870 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4871 status
= decode_compound_hdr(&xdr
, &hdr
);
4874 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
4877 if ((status
= decode_putfh(&xdr
)) != 0)
4879 if ((status
= decode_savefh(&xdr
)) != 0)
4881 if ((status
= decode_putfh(&xdr
)) != 0)
4883 if ((status
= decode_link(&xdr
, &res
->cinfo
)) != 0)
4886 * Note order: OP_LINK leaves the directory as the current
4889 if (decode_getfattr(&xdr
, res
->dir_attr
, res
->server
,
4890 !RPC_IS_ASYNC(rqstp
->rq_task
)) != 0)
4892 if ((status
= decode_restorefh(&xdr
)) != 0)
4894 decode_getfattr(&xdr
, res
->fattr
, res
->server
,
4895 !RPC_IS_ASYNC(rqstp
->rq_task
));
4901 * Decode CREATE response
4903 static int nfs4_xdr_dec_create(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_create_res
*res
)
4905 struct xdr_stream xdr
;
4906 struct compound_hdr hdr
;
4909 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4910 status
= decode_compound_hdr(&xdr
, &hdr
);
4913 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
4916 if ((status
= decode_putfh(&xdr
)) != 0)
4918 if ((status
= decode_savefh(&xdr
)) != 0)
4920 if ((status
= decode_create(&xdr
,&res
->dir_cinfo
)) != 0)
4922 if ((status
= decode_getfh(&xdr
, res
->fh
)) != 0)
4924 if (decode_getfattr(&xdr
, res
->fattr
, res
->server
,
4925 !RPC_IS_ASYNC(rqstp
->rq_task
)) != 0)
4927 if ((status
= decode_restorefh(&xdr
)) != 0)
4929 decode_getfattr(&xdr
, res
->dir_fattr
, res
->server
,
4930 !RPC_IS_ASYNC(rqstp
->rq_task
));
4936 * Decode SYMLINK response
4938 static int nfs4_xdr_dec_symlink(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_create_res
*res
)
4940 return nfs4_xdr_dec_create(rqstp
, p
, res
);
4944 * Decode GETATTR response
4946 static int nfs4_xdr_dec_getattr(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_getattr_res
*res
)
4948 struct xdr_stream xdr
;
4949 struct compound_hdr hdr
;
4952 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4953 status
= decode_compound_hdr(&xdr
, &hdr
);
4956 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
4959 status
= decode_putfh(&xdr
);
4962 status
= decode_getfattr(&xdr
, res
->fattr
, res
->server
,
4963 !RPC_IS_ASYNC(rqstp
->rq_task
));
4969 * Encode an SETACL request
4972 nfs4_xdr_enc_setacl(struct rpc_rqst
*req
, __be32
*p
, struct nfs_setaclargs
*args
)
4974 struct xdr_stream xdr
;
4975 struct compound_hdr hdr
= {
4976 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
4980 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
4981 encode_compound_hdr(&xdr
, req
, &hdr
);
4982 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
4983 encode_putfh(&xdr
, args
->fh
, &hdr
);
4984 status
= encode_setacl(&xdr
, args
, &hdr
);
4990 * Decode SETACL response
4993 nfs4_xdr_dec_setacl(struct rpc_rqst
*rqstp
, __be32
*p
,
4994 struct nfs_setaclres
*res
)
4996 struct xdr_stream xdr
;
4997 struct compound_hdr hdr
;
5000 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5001 status
= decode_compound_hdr(&xdr
, &hdr
);
5004 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5007 status
= decode_putfh(&xdr
);
5010 status
= decode_setattr(&xdr
);
5016 * Decode GETACL response
5019 nfs4_xdr_dec_getacl(struct rpc_rqst
*rqstp
, __be32
*p
,
5020 struct nfs_getaclres
*res
)
5022 struct xdr_stream xdr
;
5023 struct compound_hdr hdr
;
5026 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5027 status
= decode_compound_hdr(&xdr
, &hdr
);
5030 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5033 status
= decode_putfh(&xdr
);
5036 status
= decode_getacl(&xdr
, rqstp
, &res
->acl_len
);
5043 * Decode CLOSE response
5045 static int nfs4_xdr_dec_close(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_closeres
*res
)
5047 struct xdr_stream xdr
;
5048 struct compound_hdr hdr
;
5051 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5052 status
= decode_compound_hdr(&xdr
, &hdr
);
5055 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5058 status
= decode_putfh(&xdr
);
5061 status
= decode_close(&xdr
, res
);
5065 * Note: Server may do delete on close for this file
5066 * in which case the getattr call will fail with
5067 * an ESTALE error. Shouldn't be a problem,
5068 * though, since fattr->valid will remain unset.
5070 decode_getfattr(&xdr
, res
->fattr
, res
->server
,
5071 !RPC_IS_ASYNC(rqstp
->rq_task
));
5077 * Decode OPEN response
5079 static int nfs4_xdr_dec_open(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_openres
*res
)
5081 struct xdr_stream xdr
;
5082 struct compound_hdr hdr
;
5085 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5086 status
= decode_compound_hdr(&xdr
, &hdr
);
5089 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5092 status
= decode_putfh(&xdr
);
5095 status
= decode_savefh(&xdr
);
5098 status
= decode_open(&xdr
, res
);
5101 if (decode_getfh(&xdr
, &res
->fh
) != 0)
5103 if (decode_getfattr(&xdr
, res
->f_attr
, res
->server
,
5104 !RPC_IS_ASYNC(rqstp
->rq_task
)) != 0)
5106 if (decode_restorefh(&xdr
) != 0)
5108 decode_getfattr(&xdr
, res
->dir_attr
, res
->server
,
5109 !RPC_IS_ASYNC(rqstp
->rq_task
));
5115 * Decode OPEN_CONFIRM response
5117 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_open_confirmres
*res
)
5119 struct xdr_stream xdr
;
5120 struct compound_hdr hdr
;
5123 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5124 status
= decode_compound_hdr(&xdr
, &hdr
);
5127 status
= decode_putfh(&xdr
);
5130 status
= decode_open_confirm(&xdr
, res
);
5136 * Decode OPEN response
5138 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_openres
*res
)
5140 struct xdr_stream xdr
;
5141 struct compound_hdr hdr
;
5144 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5145 status
= decode_compound_hdr(&xdr
, &hdr
);
5148 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5151 status
= decode_putfh(&xdr
);
5154 status
= decode_open(&xdr
, res
);
5157 decode_getfattr(&xdr
, res
->f_attr
, res
->server
,
5158 !RPC_IS_ASYNC(rqstp
->rq_task
));
5164 * Decode SETATTR response
5166 static int nfs4_xdr_dec_setattr(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_setattrres
*res
)
5168 struct xdr_stream xdr
;
5169 struct compound_hdr hdr
;
5172 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5173 status
= decode_compound_hdr(&xdr
, &hdr
);
5176 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5179 status
= decode_putfh(&xdr
);
5182 status
= decode_setattr(&xdr
);
5185 decode_getfattr(&xdr
, res
->fattr
, res
->server
,
5186 !RPC_IS_ASYNC(rqstp
->rq_task
));
5192 * Decode LOCK response
5194 static int nfs4_xdr_dec_lock(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_lock_res
*res
)
5196 struct xdr_stream xdr
;
5197 struct compound_hdr hdr
;
5200 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5201 status
= decode_compound_hdr(&xdr
, &hdr
);
5204 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5207 status
= decode_putfh(&xdr
);
5210 status
= decode_lock(&xdr
, res
);
5216 * Decode LOCKT response
5218 static int nfs4_xdr_dec_lockt(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_lockt_res
*res
)
5220 struct xdr_stream xdr
;
5221 struct compound_hdr hdr
;
5224 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5225 status
= decode_compound_hdr(&xdr
, &hdr
);
5228 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5231 status
= decode_putfh(&xdr
);
5234 status
= decode_lockt(&xdr
, res
);
5240 * Decode LOCKU response
5242 static int nfs4_xdr_dec_locku(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_locku_res
*res
)
5244 struct xdr_stream xdr
;
5245 struct compound_hdr hdr
;
5248 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5249 status
= decode_compound_hdr(&xdr
, &hdr
);
5252 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5255 status
= decode_putfh(&xdr
);
5258 status
= decode_locku(&xdr
, res
);
5264 * Decode READLINK response
5266 static int nfs4_xdr_dec_readlink(struct rpc_rqst
*rqstp
, __be32
*p
,
5267 struct nfs4_readlink_res
*res
)
5269 struct xdr_stream xdr
;
5270 struct compound_hdr hdr
;
5273 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5274 status
= decode_compound_hdr(&xdr
, &hdr
);
5277 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5280 status
= decode_putfh(&xdr
);
5283 status
= decode_readlink(&xdr
, rqstp
);
5289 * Decode READDIR response
5291 static int nfs4_xdr_dec_readdir(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_readdir_res
*res
)
5293 struct xdr_stream xdr
;
5294 struct compound_hdr hdr
;
5297 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5298 status
= decode_compound_hdr(&xdr
, &hdr
);
5301 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5304 status
= decode_putfh(&xdr
);
5307 status
= decode_readdir(&xdr
, rqstp
, res
);
5313 * Decode Read response
5315 static int nfs4_xdr_dec_read(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_readres
*res
)
5317 struct xdr_stream xdr
;
5318 struct compound_hdr hdr
;
5321 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5322 status
= decode_compound_hdr(&xdr
, &hdr
);
5325 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5328 status
= decode_putfh(&xdr
);
5331 status
= decode_read(&xdr
, rqstp
, res
);
5333 status
= res
->count
;
5339 * Decode WRITE response
5341 static int nfs4_xdr_dec_write(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_writeres
*res
)
5343 struct xdr_stream xdr
;
5344 struct compound_hdr hdr
;
5347 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5348 status
= decode_compound_hdr(&xdr
, &hdr
);
5351 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5354 status
= decode_putfh(&xdr
);
5357 status
= decode_write(&xdr
, res
);
5360 decode_getfattr(&xdr
, res
->fattr
, res
->server
,
5361 !RPC_IS_ASYNC(rqstp
->rq_task
));
5363 status
= res
->count
;
5369 * Decode COMMIT response
5371 static int nfs4_xdr_dec_commit(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_writeres
*res
)
5373 struct xdr_stream xdr
;
5374 struct compound_hdr hdr
;
5377 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5378 status
= decode_compound_hdr(&xdr
, &hdr
);
5381 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5384 status
= decode_putfh(&xdr
);
5387 status
= decode_commit(&xdr
, res
);
5390 decode_getfattr(&xdr
, res
->fattr
, res
->server
,
5391 !RPC_IS_ASYNC(rqstp
->rq_task
));
5397 * Decode FSINFO response
5399 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst
*req
, __be32
*p
,
5400 struct nfs4_fsinfo_res
*res
)
5402 struct xdr_stream xdr
;
5403 struct compound_hdr hdr
;
5406 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
5407 status
= decode_compound_hdr(&xdr
, &hdr
);
5409 status
= decode_sequence(&xdr
, &res
->seq_res
, req
);
5411 status
= decode_putfh(&xdr
);
5413 status
= decode_fsinfo(&xdr
, res
->fsinfo
);
5418 * Decode PATHCONF response
5420 static int nfs4_xdr_dec_pathconf(struct rpc_rqst
*req
, __be32
*p
,
5421 struct nfs4_pathconf_res
*res
)
5423 struct xdr_stream xdr
;
5424 struct compound_hdr hdr
;
5427 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
5428 status
= decode_compound_hdr(&xdr
, &hdr
);
5430 status
= decode_sequence(&xdr
, &res
->seq_res
, req
);
5432 status
= decode_putfh(&xdr
);
5434 status
= decode_pathconf(&xdr
, res
->pathconf
);
5439 * Decode STATFS response
5441 static int nfs4_xdr_dec_statfs(struct rpc_rqst
*req
, __be32
*p
,
5442 struct nfs4_statfs_res
*res
)
5444 struct xdr_stream xdr
;
5445 struct compound_hdr hdr
;
5448 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
5449 status
= decode_compound_hdr(&xdr
, &hdr
);
5451 status
= decode_sequence(&xdr
, &res
->seq_res
, req
);
5453 status
= decode_putfh(&xdr
);
5455 status
= decode_statfs(&xdr
, res
->fsstat
);
5460 * Decode GETATTR_BITMAP response
5462 static int nfs4_xdr_dec_server_caps(struct rpc_rqst
*req
, __be32
*p
, struct nfs4_server_caps_res
*res
)
5464 struct xdr_stream xdr
;
5465 struct compound_hdr hdr
;
5468 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
5469 status
= decode_compound_hdr(&xdr
, &hdr
);
5472 status
= decode_sequence(&xdr
, &res
->seq_res
, req
);
5475 if ((status
= decode_putfh(&xdr
)) != 0)
5477 status
= decode_server_caps(&xdr
, res
);
5483 * Decode RENEW response
5485 static int nfs4_xdr_dec_renew(struct rpc_rqst
*rqstp
, __be32
*p
, void *dummy
)
5487 struct xdr_stream xdr
;
5488 struct compound_hdr hdr
;
5491 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5492 status
= decode_compound_hdr(&xdr
, &hdr
);
5494 status
= decode_renew(&xdr
);
5499 * Decode SETCLIENTID response
5501 static int nfs4_xdr_dec_setclientid(struct rpc_rqst
*req
, __be32
*p
,
5502 struct nfs_client
*clp
)
5504 struct xdr_stream xdr
;
5505 struct compound_hdr hdr
;
5508 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
5509 status
= decode_compound_hdr(&xdr
, &hdr
);
5511 status
= decode_setclientid(&xdr
, clp
);
5516 * Decode SETCLIENTID_CONFIRM response
5518 static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst
*req
, __be32
*p
, struct nfs_fsinfo
*fsinfo
)
5520 struct xdr_stream xdr
;
5521 struct compound_hdr hdr
;
5524 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
5525 status
= decode_compound_hdr(&xdr
, &hdr
);
5527 status
= decode_setclientid_confirm(&xdr
);
5529 status
= decode_putrootfh(&xdr
);
5531 status
= decode_fsinfo(&xdr
, fsinfo
);
5536 * Decode DELEGRETURN response
5538 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_delegreturnres
*res
)
5540 struct xdr_stream xdr
;
5541 struct compound_hdr hdr
;
5544 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5545 status
= decode_compound_hdr(&xdr
, &hdr
);
5548 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5551 status
= decode_putfh(&xdr
);
5554 status
= decode_delegreturn(&xdr
);
5555 decode_getfattr(&xdr
, res
->fattr
, res
->server
,
5556 !RPC_IS_ASYNC(rqstp
->rq_task
));
5562 * Decode FS_LOCATIONS response
5564 static int nfs4_xdr_dec_fs_locations(struct rpc_rqst
*req
, __be32
*p
,
5565 struct nfs4_fs_locations_res
*res
)
5567 struct xdr_stream xdr
;
5568 struct compound_hdr hdr
;
5571 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
5572 status
= decode_compound_hdr(&xdr
, &hdr
);
5575 status
= decode_sequence(&xdr
, &res
->seq_res
, req
);
5578 if ((status
= decode_putfh(&xdr
)) != 0)
5580 if ((status
= decode_lookup(&xdr
)) != 0)
5582 xdr_enter_page(&xdr
, PAGE_SIZE
);
5583 status
= decode_getfattr(&xdr
, &res
->fs_locations
->fattr
,
5584 res
->fs_locations
->server
,
5585 !RPC_IS_ASYNC(req
->rq_task
));
5590 #if defined(CONFIG_NFS_V4_1)
5592 * Decode EXCHANGE_ID response
5594 static int nfs4_xdr_dec_exchange_id(struct rpc_rqst
*rqstp
, uint32_t *p
,
5597 struct xdr_stream xdr
;
5598 struct compound_hdr hdr
;
5601 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5602 status
= decode_compound_hdr(&xdr
, &hdr
);
5604 status
= decode_exchange_id(&xdr
, res
);
5609 * Decode CREATE_SESSION response
5611 static int nfs4_xdr_dec_create_session(struct rpc_rqst
*rqstp
, uint32_t *p
,
5612 struct nfs41_create_session_res
*res
)
5614 struct xdr_stream xdr
;
5615 struct compound_hdr hdr
;
5618 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5619 status
= decode_compound_hdr(&xdr
, &hdr
);
5621 status
= decode_create_session(&xdr
, res
);
5626 * Decode DESTROY_SESSION response
5628 static int nfs4_xdr_dec_destroy_session(struct rpc_rqst
*rqstp
, uint32_t *p
,
5631 struct xdr_stream xdr
;
5632 struct compound_hdr hdr
;
5635 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5636 status
= decode_compound_hdr(&xdr
, &hdr
);
5638 status
= decode_destroy_session(&xdr
, dummy
);
5643 * Decode SEQUENCE response
5645 static int nfs4_xdr_dec_sequence(struct rpc_rqst
*rqstp
, uint32_t *p
,
5646 struct nfs4_sequence_res
*res
)
5648 struct xdr_stream xdr
;
5649 struct compound_hdr hdr
;
5652 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5653 status
= decode_compound_hdr(&xdr
, &hdr
);
5655 status
= decode_sequence(&xdr
, res
, rqstp
);
5660 * Decode GET_LEASE_TIME response
5662 static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst
*rqstp
, uint32_t *p
,
5663 struct nfs4_get_lease_time_res
*res
)
5665 struct xdr_stream xdr
;
5666 struct compound_hdr hdr
;
5669 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5670 status
= decode_compound_hdr(&xdr
, &hdr
);
5672 status
= decode_sequence(&xdr
, &res
->lr_seq_res
, rqstp
);
5674 status
= decode_putrootfh(&xdr
);
5676 status
= decode_fsinfo(&xdr
, res
->lr_fsinfo
);
5681 * Decode RECLAIM_COMPLETE response
5683 static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst
*rqstp
, uint32_t *p
,
5684 struct nfs41_reclaim_complete_res
*res
)
5686 struct xdr_stream xdr
;
5687 struct compound_hdr hdr
;
5690 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5691 status
= decode_compound_hdr(&xdr
, &hdr
);
5693 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5695 status
= decode_reclaim_complete(&xdr
, (void *)NULL
);
5698 #endif /* CONFIG_NFS_V4_1 */
5700 __be32
*nfs4_decode_dirent(__be32
*p
, struct nfs_entry
*entry
, int plus
)
5702 uint32_t bitmap
[2] = {0};
5707 return ERR_PTR(-EAGAIN
);
5709 return ERR_PTR(-EBADCOOKIE
);
5712 entry
->prev_cookie
= entry
->cookie
;
5713 p
= xdr_decode_hyper(p
, &entry
->cookie
);
5714 entry
->len
= ntohl(*p
++);
5715 entry
->name
= (const char *) p
;
5716 p
+= XDR_QUADLEN(entry
->len
);
5719 * In case the server doesn't return an inode number,
5720 * we fake one here. (We don't use inode number 0,
5721 * since glibc seems to choke on it...)
5725 len
= ntohl(*p
++); /* bitmap length */
5727 bitmap
[0] = ntohl(*p
++);
5729 bitmap
[1] = ntohl(*p
++);
5733 len
= XDR_QUADLEN(ntohl(*p
++)); /* attribute buffer length */
5735 if (bitmap
[0] & FATTR4_WORD0_RDATTR_ERROR
) {
5736 bitmap
[0] &= ~FATTR4_WORD0_RDATTR_ERROR
;
5737 /* Ignore the return value of rdattr_error for now */
5741 if (bitmap
[0] == 0 && bitmap
[1] == FATTR4_WORD1_MOUNTED_ON_FILEID
)
5742 xdr_decode_hyper(p
, &entry
->ino
);
5743 else if (bitmap
[0] == FATTR4_WORD0_FILEID
)
5744 xdr_decode_hyper(p
, &entry
->ino
);
5748 entry
->eof
= !p
[0] && p
[1];
5753 * We need to translate between nfs status return values and
5754 * the local errno values which may not be the same.
5761 { NFS4ERR_PERM
, -EPERM
},
5762 { NFS4ERR_NOENT
, -ENOENT
},
5763 { NFS4ERR_IO
, -errno_NFSERR_IO
},
5764 { NFS4ERR_NXIO
, -ENXIO
},
5765 { NFS4ERR_ACCESS
, -EACCES
},
5766 { NFS4ERR_EXIST
, -EEXIST
},
5767 { NFS4ERR_XDEV
, -EXDEV
},
5768 { NFS4ERR_NOTDIR
, -ENOTDIR
},
5769 { NFS4ERR_ISDIR
, -EISDIR
},
5770 { NFS4ERR_INVAL
, -EINVAL
},
5771 { NFS4ERR_FBIG
, -EFBIG
},
5772 { NFS4ERR_NOSPC
, -ENOSPC
},
5773 { NFS4ERR_ROFS
, -EROFS
},
5774 { NFS4ERR_MLINK
, -EMLINK
},
5775 { NFS4ERR_NAMETOOLONG
, -ENAMETOOLONG
},
5776 { NFS4ERR_NOTEMPTY
, -ENOTEMPTY
},
5777 { NFS4ERR_DQUOT
, -EDQUOT
},
5778 { NFS4ERR_STALE
, -ESTALE
},
5779 { NFS4ERR_BADHANDLE
, -EBADHANDLE
},
5780 { NFS4ERR_BADOWNER
, -EINVAL
},
5781 { NFS4ERR_BADNAME
, -EINVAL
},
5782 { NFS4ERR_BAD_COOKIE
, -EBADCOOKIE
},
5783 { NFS4ERR_NOTSUPP
, -ENOTSUPP
},
5784 { NFS4ERR_TOOSMALL
, -ETOOSMALL
},
5785 { NFS4ERR_SERVERFAULT
, -EREMOTEIO
},
5786 { NFS4ERR_BADTYPE
, -EBADTYPE
},
5787 { NFS4ERR_LOCKED
, -EAGAIN
},
5788 { NFS4ERR_SYMLINK
, -ELOOP
},
5789 { NFS4ERR_OP_ILLEGAL
, -EOPNOTSUPP
},
5790 { NFS4ERR_DEADLOCK
, -EDEADLK
},
5791 { NFS4ERR_WRONGSEC
, -EPERM
}, /* FIXME: this needs
5792 * to be handled by a
5799 * Convert an NFS error code to a local one.
5800 * This one is used jointly by NFSv2 and NFSv3.
5803 nfs4_stat_to_errno(int stat
)
5806 for (i
= 0; nfs_errtbl
[i
].stat
!= -1; i
++) {
5807 if (nfs_errtbl
[i
].stat
== stat
)
5808 return nfs_errtbl
[i
].errno
;
5810 if (stat
<= 10000 || stat
> 10100) {
5811 /* The server is looney tunes. */
5814 /* If we cannot translate the error, the recovery routines should
5816 * Note: remaining NFSv4 error codes have values > 10000, so should
5817 * not conflict with native Linux error codes.
5822 #define PROC(proc, argtype, restype) \
5823 [NFSPROC4_CLNT_##proc] = { \
5824 .p_proc = NFSPROC4_COMPOUND, \
5825 .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \
5826 .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \
5827 .p_arglen = NFS4_##argtype##_sz, \
5828 .p_replen = NFS4_##restype##_sz, \
5829 .p_statidx = NFSPROC4_CLNT_##proc, \
5833 struct rpc_procinfo nfs4_procedures
[] = {
5834 PROC(READ
, enc_read
, dec_read
),
5835 PROC(WRITE
, enc_write
, dec_write
),
5836 PROC(COMMIT
, enc_commit
, dec_commit
),
5837 PROC(OPEN
, enc_open
, dec_open
),
5838 PROC(OPEN_CONFIRM
, enc_open_confirm
, dec_open_confirm
),
5839 PROC(OPEN_NOATTR
, enc_open_noattr
, dec_open_noattr
),
5840 PROC(OPEN_DOWNGRADE
, enc_open_downgrade
, dec_open_downgrade
),
5841 PROC(CLOSE
, enc_close
, dec_close
),
5842 PROC(SETATTR
, enc_setattr
, dec_setattr
),
5843 PROC(FSINFO
, enc_fsinfo
, dec_fsinfo
),
5844 PROC(RENEW
, enc_renew
, dec_renew
),
5845 PROC(SETCLIENTID
, enc_setclientid
, dec_setclientid
),
5846 PROC(SETCLIENTID_CONFIRM
, enc_setclientid_confirm
, dec_setclientid_confirm
),
5847 PROC(LOCK
, enc_lock
, dec_lock
),
5848 PROC(LOCKT
, enc_lockt
, dec_lockt
),
5849 PROC(LOCKU
, enc_locku
, dec_locku
),
5850 PROC(ACCESS
, enc_access
, dec_access
),
5851 PROC(GETATTR
, enc_getattr
, dec_getattr
),
5852 PROC(LOOKUP
, enc_lookup
, dec_lookup
),
5853 PROC(LOOKUP_ROOT
, enc_lookup_root
, dec_lookup_root
),
5854 PROC(REMOVE
, enc_remove
, dec_remove
),
5855 PROC(RENAME
, enc_rename
, dec_rename
),
5856 PROC(LINK
, enc_link
, dec_link
),
5857 PROC(SYMLINK
, enc_symlink
, dec_symlink
),
5858 PROC(CREATE
, enc_create
, dec_create
),
5859 PROC(PATHCONF
, enc_pathconf
, dec_pathconf
),
5860 PROC(STATFS
, enc_statfs
, dec_statfs
),
5861 PROC(READLINK
, enc_readlink
, dec_readlink
),
5862 PROC(READDIR
, enc_readdir
, dec_readdir
),
5863 PROC(SERVER_CAPS
, enc_server_caps
, dec_server_caps
),
5864 PROC(DELEGRETURN
, enc_delegreturn
, dec_delegreturn
),
5865 PROC(GETACL
, enc_getacl
, dec_getacl
),
5866 PROC(SETACL
, enc_setacl
, dec_setacl
),
5867 PROC(FS_LOCATIONS
, enc_fs_locations
, dec_fs_locations
),
5868 #if defined(CONFIG_NFS_V4_1)
5869 PROC(EXCHANGE_ID
, enc_exchange_id
, dec_exchange_id
),
5870 PROC(CREATE_SESSION
, enc_create_session
, dec_create_session
),
5871 PROC(DESTROY_SESSION
, enc_destroy_session
, dec_destroy_session
),
5872 PROC(SEQUENCE
, enc_sequence
, dec_sequence
),
5873 PROC(GET_LEASE_TIME
, enc_get_lease_time
, dec_get_lease_time
),
5874 PROC(RECLAIM_COMPLETE
, enc_reclaim_complete
, dec_reclaim_complete
),
5875 #endif /* CONFIG_NFS_V4_1 */
5878 struct rpc_version nfs_version4
= {
5880 .nrprocs
= ARRAY_SIZE(nfs4_procedures
),
5881 .procs
= nfs4_procedures