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/errno.h>
42 #include <linux/string.h>
44 #include <linux/pagemap.h>
45 #include <linux/proc_fs.h>
46 #include <linux/kdev_t.h>
47 #include <linux/sunrpc/clnt.h>
48 #include <linux/sunrpc/msg_prot.h>
49 #include <linux/nfs.h>
50 #include <linux/nfs4.h>
51 #include <linux/nfs_fs.h>
52 #include <linux/nfs_idmap.h>
56 #define NFSDBG_FACILITY NFSDBG_XDR
58 /* Mapping from NFS error code to "errno" error code. */
59 #define errno_NFSERR_IO EIO
61 static int nfs4_stat_to_errno(int);
63 /* NFSv4 COMPOUND tags are only wanted for debugging purposes */
65 #define NFS4_MAXTAGLEN 20
67 #define NFS4_MAXTAGLEN 0
70 /* lock,open owner id:
71 * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
73 #define open_owner_id_maxsz (1 + 4)
74 #define lock_owner_id_maxsz (1 + 4)
75 #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
76 #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
77 #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
78 #define op_encode_hdr_maxsz (1)
79 #define op_decode_hdr_maxsz (2)
80 #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
81 #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
82 #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
83 #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
84 #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
86 #define decode_putfh_maxsz (op_decode_hdr_maxsz)
87 #define encode_putrootfh_maxsz (op_encode_hdr_maxsz)
88 #define decode_putrootfh_maxsz (op_decode_hdr_maxsz)
89 #define encode_getfh_maxsz (op_encode_hdr_maxsz)
90 #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
91 ((3+NFS4_FHSIZE) >> 2))
92 #define nfs4_fattr_bitmap_maxsz 3
93 #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
94 #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
95 #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
96 #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
97 #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
98 /* This is based on getfattr, which uses the most attributes: */
99 #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
100 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz))
101 #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
102 nfs4_fattr_value_maxsz)
103 #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
104 #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
109 #define encode_savefh_maxsz (op_encode_hdr_maxsz)
110 #define decode_savefh_maxsz (op_decode_hdr_maxsz)
111 #define encode_restorefh_maxsz (op_encode_hdr_maxsz)
112 #define decode_restorefh_maxsz (op_decode_hdr_maxsz)
113 #define encode_fsinfo_maxsz (encode_getattr_maxsz)
114 #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11)
115 #define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
116 #define decode_renew_maxsz (op_decode_hdr_maxsz)
117 #define encode_setclientid_maxsz \
118 (op_encode_hdr_maxsz + \
119 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
120 XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \
122 XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
123 XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
125 #define decode_setclientid_maxsz \
126 (op_decode_hdr_maxsz + \
128 1024) /* large value for CLID_INUSE */
129 #define encode_setclientid_confirm_maxsz \
130 (op_encode_hdr_maxsz + \
131 3 + (NFS4_VERIFIER_SIZE >> 2))
132 #define decode_setclientid_confirm_maxsz \
133 (op_decode_hdr_maxsz)
134 #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
135 #define decode_lookup_maxsz (op_decode_hdr_maxsz)
136 #define encode_share_access_maxsz \
138 #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
139 #define encode_opentype_maxsz (1 + encode_createmode_maxsz)
140 #define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
141 #define encode_open_maxsz (op_encode_hdr_maxsz + \
142 2 + encode_share_access_maxsz + 2 + \
143 open_owner_id_maxsz + \
144 encode_opentype_maxsz + \
145 encode_claim_null_maxsz)
146 #define decode_ace_maxsz (3 + nfs4_owner_maxsz)
147 #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
149 #define decode_change_info_maxsz (5)
150 #define decode_open_maxsz (op_decode_hdr_maxsz + \
151 decode_stateid_maxsz + \
152 decode_change_info_maxsz + 1 + \
153 nfs4_fattr_bitmap_maxsz + \
154 decode_delegation_maxsz)
155 #define encode_open_confirm_maxsz \
156 (op_encode_hdr_maxsz + \
157 encode_stateid_maxsz + 1)
158 #define decode_open_confirm_maxsz \
159 (op_decode_hdr_maxsz + \
160 decode_stateid_maxsz)
161 #define encode_open_downgrade_maxsz \
162 (op_encode_hdr_maxsz + \
163 encode_stateid_maxsz + 1 + \
164 encode_share_access_maxsz)
165 #define decode_open_downgrade_maxsz \
166 (op_decode_hdr_maxsz + \
167 decode_stateid_maxsz)
168 #define encode_close_maxsz (op_encode_hdr_maxsz + \
169 1 + encode_stateid_maxsz)
170 #define decode_close_maxsz (op_decode_hdr_maxsz + \
171 decode_stateid_maxsz)
172 #define encode_setattr_maxsz (op_encode_hdr_maxsz + \
173 encode_stateid_maxsz + \
175 #define decode_setattr_maxsz (op_decode_hdr_maxsz + \
176 nfs4_fattr_bitmap_maxsz)
177 #define encode_read_maxsz (op_encode_hdr_maxsz + \
178 encode_stateid_maxsz + 3)
179 #define decode_read_maxsz (op_decode_hdr_maxsz + 2)
180 #define encode_readdir_maxsz (op_encode_hdr_maxsz + \
181 2 + encode_verifier_maxsz + 5)
182 #define decode_readdir_maxsz (op_decode_hdr_maxsz + \
183 decode_verifier_maxsz)
184 #define encode_readlink_maxsz (op_encode_hdr_maxsz)
185 #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1)
186 #define encode_write_maxsz (op_encode_hdr_maxsz + \
187 encode_stateid_maxsz + 4)
188 #define decode_write_maxsz (op_decode_hdr_maxsz + \
189 2 + decode_verifier_maxsz)
190 #define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
191 #define decode_commit_maxsz (op_decode_hdr_maxsz + \
192 decode_verifier_maxsz)
193 #define encode_remove_maxsz (op_encode_hdr_maxsz + \
195 #define decode_remove_maxsz (op_decode_hdr_maxsz + \
196 decode_change_info_maxsz)
197 #define encode_rename_maxsz (op_encode_hdr_maxsz + \
199 #define decode_rename_maxsz (op_decode_hdr_maxsz + \
200 decode_change_info_maxsz + \
201 decode_change_info_maxsz)
202 #define encode_link_maxsz (op_encode_hdr_maxsz + \
204 #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
205 #define encode_lockowner_maxsz (7)
206 #define encode_lock_maxsz (op_encode_hdr_maxsz + \
208 1 + encode_stateid_maxsz + 1 + \
209 encode_lockowner_maxsz)
210 #define decode_lock_denied_maxsz \
211 (8 + decode_lockowner_maxsz)
212 #define decode_lock_maxsz (op_decode_hdr_maxsz + \
213 decode_lock_denied_maxsz)
214 #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
215 encode_lockowner_maxsz)
216 #define decode_lockt_maxsz (op_decode_hdr_maxsz + \
217 decode_lock_denied_maxsz)
218 #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
219 encode_stateid_maxsz + \
221 #define decode_locku_maxsz (op_decode_hdr_maxsz + \
222 decode_stateid_maxsz)
223 #define encode_release_lockowner_maxsz \
224 (op_encode_hdr_maxsz + \
225 encode_lockowner_maxsz)
226 #define decode_release_lockowner_maxsz \
227 (op_decode_hdr_maxsz)
228 #define encode_access_maxsz (op_encode_hdr_maxsz + 1)
229 #define decode_access_maxsz (op_decode_hdr_maxsz + 2)
230 #define encode_symlink_maxsz (op_encode_hdr_maxsz + \
231 1 + nfs4_name_maxsz + \
234 #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
235 #define encode_create_maxsz (op_encode_hdr_maxsz + \
236 1 + 2 + nfs4_name_maxsz + \
238 #define decode_create_maxsz (op_decode_hdr_maxsz + \
239 decode_change_info_maxsz + \
240 nfs4_fattr_bitmap_maxsz)
241 #define encode_statfs_maxsz (encode_getattr_maxsz)
242 #define decode_statfs_maxsz (decode_getattr_maxsz)
243 #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
244 #define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
245 #define encode_getacl_maxsz (encode_getattr_maxsz)
246 #define decode_getacl_maxsz (op_decode_hdr_maxsz + \
247 nfs4_fattr_bitmap_maxsz + 1)
248 #define encode_setacl_maxsz (op_encode_hdr_maxsz + \
249 encode_stateid_maxsz + 3)
250 #define decode_setacl_maxsz (decode_setattr_maxsz)
251 #define encode_fs_locations_maxsz \
252 (encode_getattr_maxsz)
253 #define decode_fs_locations_maxsz \
256 #if defined(CONFIG_NFS_V4_1)
257 #define NFS4_MAX_MACHINE_NAME_LEN (64)
259 #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
260 encode_verifier_maxsz + \
261 1 /* co_ownerid.len */ + \
262 XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \
265 0 /* SP4_NONE (for now) */ + \
266 1 /* zero implemetation id array */)
267 #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
268 2 /* eir_clientid */ + \
269 1 /* eir_sequenceid */ + \
270 1 /* eir_flags */ + \
272 0 /* SP4_NONE (for now) */ + \
273 2 /* eir_server_owner.so_minor_id */ + \
274 /* eir_server_owner.so_major_id<> */ \
275 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
276 /* eir_server_scope<> */ \
277 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
278 1 /* eir_server_impl_id array length */ + \
279 0 /* ignored eir_server_impl_id contents */)
280 #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
281 #define decode_channel_attrs_maxsz (6 + \
282 1 /* ca_rdma_ird.len */ + \
284 #define encode_create_session_maxsz (op_encode_hdr_maxsz + \
285 2 /* csa_clientid */ + \
286 1 /* csa_sequence */ + \
287 1 /* csa_flags */ + \
288 encode_channel_attrs_maxsz + \
289 encode_channel_attrs_maxsz + \
290 1 /* csa_cb_program */ + \
291 1 /* csa_sec_parms.len (1) */ + \
292 1 /* cb_secflavor (AUTH_SYS) */ + \
294 1 /* machinename.len */ + \
295 XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
298 1 /* gids.len (0) */)
299 #define decode_create_session_maxsz (op_decode_hdr_maxsz + \
300 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
301 1 /* csr_sequence */ + \
302 1 /* csr_flags */ + \
303 decode_channel_attrs_maxsz + \
304 decode_channel_attrs_maxsz)
305 #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
306 #define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
307 #define encode_sequence_maxsz (op_encode_hdr_maxsz + \
308 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
309 #define decode_sequence_maxsz (op_decode_hdr_maxsz + \
310 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
311 #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
312 #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
313 #else /* CONFIG_NFS_V4_1 */
314 #define encode_sequence_maxsz 0
315 #define decode_sequence_maxsz 0
316 #endif /* CONFIG_NFS_V4_1 */
318 #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
319 #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
320 #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
321 encode_sequence_maxsz + \
322 encode_putfh_maxsz + \
324 #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
325 decode_sequence_maxsz + \
326 decode_putfh_maxsz + \
328 #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
329 encode_sequence_maxsz + \
330 encode_putfh_maxsz + \
331 encode_readlink_maxsz)
332 #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
333 decode_sequence_maxsz + \
334 decode_putfh_maxsz + \
335 decode_readlink_maxsz)
336 #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
337 encode_sequence_maxsz + \
338 encode_putfh_maxsz + \
339 encode_readdir_maxsz)
340 #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
341 decode_sequence_maxsz + \
342 decode_putfh_maxsz + \
343 decode_readdir_maxsz)
344 #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
345 encode_sequence_maxsz + \
346 encode_putfh_maxsz + \
347 encode_write_maxsz + \
348 encode_getattr_maxsz)
349 #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
350 decode_sequence_maxsz + \
351 decode_putfh_maxsz + \
352 decode_write_maxsz + \
353 decode_getattr_maxsz)
354 #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
355 encode_sequence_maxsz + \
356 encode_putfh_maxsz + \
357 encode_commit_maxsz + \
358 encode_getattr_maxsz)
359 #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
360 decode_sequence_maxsz + \
361 decode_putfh_maxsz + \
362 decode_commit_maxsz + \
363 decode_getattr_maxsz)
364 #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
365 encode_sequence_maxsz + \
366 encode_putfh_maxsz + \
367 encode_savefh_maxsz + \
368 encode_open_maxsz + \
369 encode_getfh_maxsz + \
370 encode_getattr_maxsz + \
371 encode_restorefh_maxsz + \
372 encode_getattr_maxsz)
373 #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
374 decode_sequence_maxsz + \
375 decode_putfh_maxsz + \
376 decode_savefh_maxsz + \
377 decode_open_maxsz + \
378 decode_getfh_maxsz + \
379 decode_getattr_maxsz + \
380 decode_restorefh_maxsz + \
381 decode_getattr_maxsz)
382 #define NFS4_enc_open_confirm_sz \
383 (compound_encode_hdr_maxsz + \
384 encode_putfh_maxsz + \
385 encode_open_confirm_maxsz)
386 #define NFS4_dec_open_confirm_sz \
387 (compound_decode_hdr_maxsz + \
388 decode_putfh_maxsz + \
389 decode_open_confirm_maxsz)
390 #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
391 encode_sequence_maxsz + \
392 encode_putfh_maxsz + \
393 encode_open_maxsz + \
394 encode_getattr_maxsz)
395 #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
396 decode_sequence_maxsz + \
397 decode_putfh_maxsz + \
398 decode_open_maxsz + \
399 decode_getattr_maxsz)
400 #define NFS4_enc_open_downgrade_sz \
401 (compound_encode_hdr_maxsz + \
402 encode_sequence_maxsz + \
403 encode_putfh_maxsz + \
404 encode_open_downgrade_maxsz + \
405 encode_getattr_maxsz)
406 #define NFS4_dec_open_downgrade_sz \
407 (compound_decode_hdr_maxsz + \
408 decode_sequence_maxsz + \
409 decode_putfh_maxsz + \
410 decode_open_downgrade_maxsz + \
411 decode_getattr_maxsz)
412 #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
413 encode_sequence_maxsz + \
414 encode_putfh_maxsz + \
415 encode_close_maxsz + \
416 encode_getattr_maxsz)
417 #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
418 decode_sequence_maxsz + \
419 decode_putfh_maxsz + \
420 decode_close_maxsz + \
421 decode_getattr_maxsz)
422 #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
423 encode_sequence_maxsz + \
424 encode_putfh_maxsz + \
425 encode_setattr_maxsz + \
426 encode_getattr_maxsz)
427 #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
428 decode_sequence_maxsz + \
429 decode_putfh_maxsz + \
430 decode_setattr_maxsz + \
431 decode_getattr_maxsz)
432 #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
433 encode_sequence_maxsz + \
434 encode_putfh_maxsz + \
436 #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
437 decode_sequence_maxsz + \
438 decode_putfh_maxsz + \
440 #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
442 #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
444 #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
445 encode_setclientid_maxsz)
446 #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
447 decode_setclientid_maxsz)
448 #define NFS4_enc_setclientid_confirm_sz \
449 (compound_encode_hdr_maxsz + \
450 encode_setclientid_confirm_maxsz + \
451 encode_putrootfh_maxsz + \
453 #define NFS4_dec_setclientid_confirm_sz \
454 (compound_decode_hdr_maxsz + \
455 decode_setclientid_confirm_maxsz + \
456 decode_putrootfh_maxsz + \
458 #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
459 encode_sequence_maxsz + \
460 encode_putfh_maxsz + \
462 #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
463 decode_sequence_maxsz + \
464 decode_putfh_maxsz + \
466 #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
467 encode_sequence_maxsz + \
468 encode_putfh_maxsz + \
470 #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
471 decode_sequence_maxsz + \
472 decode_putfh_maxsz + \
474 #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
475 encode_sequence_maxsz + \
476 encode_putfh_maxsz + \
478 #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
479 decode_sequence_maxsz + \
480 decode_putfh_maxsz + \
482 #define NFS4_enc_release_lockowner_sz \
483 (compound_encode_hdr_maxsz + \
484 encode_lockowner_maxsz)
485 #define NFS4_dec_release_lockowner_sz \
486 (compound_decode_hdr_maxsz + \
487 decode_lockowner_maxsz)
488 #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
489 encode_sequence_maxsz + \
490 encode_putfh_maxsz + \
491 encode_access_maxsz + \
492 encode_getattr_maxsz)
493 #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
494 decode_sequence_maxsz + \
495 decode_putfh_maxsz + \
496 decode_access_maxsz + \
497 decode_getattr_maxsz)
498 #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
499 encode_sequence_maxsz + \
500 encode_putfh_maxsz + \
501 encode_getattr_maxsz)
502 #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
503 decode_sequence_maxsz + \
504 decode_putfh_maxsz + \
505 decode_getattr_maxsz)
506 #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
507 encode_sequence_maxsz + \
508 encode_putfh_maxsz + \
509 encode_lookup_maxsz + \
510 encode_getattr_maxsz + \
512 #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
513 decode_sequence_maxsz + \
514 decode_putfh_maxsz + \
515 decode_lookup_maxsz + \
516 decode_getattr_maxsz + \
518 #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
519 encode_sequence_maxsz + \
520 encode_putrootfh_maxsz + \
521 encode_getattr_maxsz + \
523 #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
524 decode_sequence_maxsz + \
525 decode_putrootfh_maxsz + \
526 decode_getattr_maxsz + \
528 #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
529 encode_sequence_maxsz + \
530 encode_putfh_maxsz + \
531 encode_remove_maxsz + \
532 encode_getattr_maxsz)
533 #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
534 decode_sequence_maxsz + \
535 decode_putfh_maxsz + \
536 decode_remove_maxsz + \
537 decode_getattr_maxsz)
538 #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
539 encode_sequence_maxsz + \
540 encode_putfh_maxsz + \
541 encode_savefh_maxsz + \
542 encode_putfh_maxsz + \
543 encode_rename_maxsz + \
544 encode_getattr_maxsz + \
545 encode_restorefh_maxsz + \
546 encode_getattr_maxsz)
547 #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
548 decode_sequence_maxsz + \
549 decode_putfh_maxsz + \
550 decode_savefh_maxsz + \
551 decode_putfh_maxsz + \
552 decode_rename_maxsz + \
553 decode_getattr_maxsz + \
554 decode_restorefh_maxsz + \
555 decode_getattr_maxsz)
556 #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
557 encode_sequence_maxsz + \
558 encode_putfh_maxsz + \
559 encode_savefh_maxsz + \
560 encode_putfh_maxsz + \
561 encode_link_maxsz + \
562 decode_getattr_maxsz + \
563 encode_restorefh_maxsz + \
564 decode_getattr_maxsz)
565 #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
566 decode_sequence_maxsz + \
567 decode_putfh_maxsz + \
568 decode_savefh_maxsz + \
569 decode_putfh_maxsz + \
570 decode_link_maxsz + \
571 decode_getattr_maxsz + \
572 decode_restorefh_maxsz + \
573 decode_getattr_maxsz)
574 #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
575 encode_sequence_maxsz + \
576 encode_putfh_maxsz + \
577 encode_symlink_maxsz + \
578 encode_getattr_maxsz + \
580 #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
581 decode_sequence_maxsz + \
582 decode_putfh_maxsz + \
583 decode_symlink_maxsz + \
584 decode_getattr_maxsz + \
586 #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
587 encode_sequence_maxsz + \
588 encode_putfh_maxsz + \
589 encode_savefh_maxsz + \
590 encode_create_maxsz + \
591 encode_getfh_maxsz + \
592 encode_getattr_maxsz + \
593 encode_restorefh_maxsz + \
594 encode_getattr_maxsz)
595 #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
596 decode_sequence_maxsz + \
597 decode_putfh_maxsz + \
598 decode_savefh_maxsz + \
599 decode_create_maxsz + \
600 decode_getfh_maxsz + \
601 decode_getattr_maxsz + \
602 decode_restorefh_maxsz + \
603 decode_getattr_maxsz)
604 #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
605 encode_sequence_maxsz + \
606 encode_putfh_maxsz + \
607 encode_getattr_maxsz)
608 #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
609 decode_sequence_maxsz + \
610 decode_putfh_maxsz + \
611 decode_getattr_maxsz)
612 #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
613 encode_sequence_maxsz + \
614 encode_putfh_maxsz + \
616 #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
617 decode_sequence_maxsz + \
618 decode_putfh_maxsz + \
620 #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
621 encode_sequence_maxsz + \
622 encode_putfh_maxsz + \
623 encode_getattr_maxsz)
624 #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
625 decode_sequence_maxsz + \
626 decode_putfh_maxsz + \
627 decode_getattr_maxsz)
628 #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
629 encode_sequence_maxsz + \
630 encode_putfh_maxsz + \
631 encode_delegreturn_maxsz + \
632 encode_getattr_maxsz)
633 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
634 decode_sequence_maxsz + \
635 decode_delegreturn_maxsz + \
636 decode_getattr_maxsz)
637 #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
638 encode_sequence_maxsz + \
639 encode_putfh_maxsz + \
641 #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
642 decode_sequence_maxsz + \
643 decode_putfh_maxsz + \
645 #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
646 encode_sequence_maxsz + \
647 encode_putfh_maxsz + \
649 #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
650 decode_sequence_maxsz + \
651 decode_putfh_maxsz + \
653 #define NFS4_enc_fs_locations_sz \
654 (compound_encode_hdr_maxsz + \
655 encode_sequence_maxsz + \
656 encode_putfh_maxsz + \
657 encode_lookup_maxsz + \
658 encode_fs_locations_maxsz)
659 #define NFS4_dec_fs_locations_sz \
660 (compound_decode_hdr_maxsz + \
661 decode_sequence_maxsz + \
662 decode_putfh_maxsz + \
663 decode_lookup_maxsz + \
664 decode_fs_locations_maxsz)
665 #if defined(CONFIG_NFS_V4_1)
666 #define NFS4_enc_exchange_id_sz \
667 (compound_encode_hdr_maxsz + \
668 encode_exchange_id_maxsz)
669 #define NFS4_dec_exchange_id_sz \
670 (compound_decode_hdr_maxsz + \
671 decode_exchange_id_maxsz)
672 #define NFS4_enc_create_session_sz \
673 (compound_encode_hdr_maxsz + \
674 encode_create_session_maxsz)
675 #define NFS4_dec_create_session_sz \
676 (compound_decode_hdr_maxsz + \
677 decode_create_session_maxsz)
678 #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
679 encode_destroy_session_maxsz)
680 #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
681 decode_destroy_session_maxsz)
682 #define NFS4_enc_sequence_sz \
683 (compound_decode_hdr_maxsz + \
684 encode_sequence_maxsz)
685 #define NFS4_dec_sequence_sz \
686 (compound_decode_hdr_maxsz + \
687 decode_sequence_maxsz)
688 #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
689 encode_sequence_maxsz + \
690 encode_putrootfh_maxsz + \
692 #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
693 decode_sequence_maxsz + \
694 decode_putrootfh_maxsz + \
696 #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
697 encode_sequence_maxsz + \
698 encode_reclaim_complete_maxsz)
699 #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
700 decode_sequence_maxsz + \
701 decode_reclaim_complete_maxsz)
703 const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
704 compound_encode_hdr_maxsz +
705 encode_sequence_maxsz +
707 encode_getattr_maxsz) *
710 const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
711 compound_decode_hdr_maxsz +
712 decode_sequence_maxsz +
713 decode_putfh_maxsz) *
715 #endif /* CONFIG_NFS_V4_1 */
717 static const umode_t nfs_type2fmt[] = {
724 [NF4SOCK] = S_IFSOCK,
730 struct compound_hdr {
736 uint32_t replen; /* expected reply words */
740 static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes)
742 __be32 *p = xdr_reserve_space(xdr, nbytes);
747 static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
751 p = xdr_reserve_space(xdr, 4 + len);
753 xdr_encode_opaque(p, str, len);
756 static void encode_compound_hdr(struct xdr_stream *xdr,
757 struct rpc_rqst *req,
758 struct compound_hdr *hdr)
761 struct rpc_auth *auth = req->rq_cred->cr_auth;
763 /* initialize running count of expected bytes in reply.
764 * NOTE: the replied tag SHOULD be the same is the one sent,
765 * but this is not required as a MUST for the server to do so. */
766 hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen;
768 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag);
769 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN);
770 p = reserve_space(xdr, 4 + hdr->taglen + 8);
771 p = xdr_encode_opaque(p, hdr->tag, hdr->taglen);
772 *p++ = cpu_to_be32(hdr->minorversion);
774 *p = cpu_to_be32(hdr->nops);
777 static void encode_nops(struct compound_hdr *hdr)
779 BUG_ON(hdr->nops > NFS4_MAX_OPS);
780 *hdr->nops_p = htonl(hdr->nops);
783 static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
787 p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE);
789 xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE);
792 static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
794 char owner_name[IDMAP_NAMESZ];
795 char owner_group[IDMAP_NAMESZ];
796 int owner_namelen = 0;
797 int owner_grouplen = 0;
805 * We reserve enough space to write the entire attribute buffer at once.
806 * In the worst-case, this would be
807 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
808 * = 36 bytes, plus any contribution from variable-length fields
809 * such as owner/group.
814 if (iap->ia_valid & ATTR_SIZE)
816 if (iap->ia_valid & ATTR_MODE)
818 if (iap->ia_valid & ATTR_UID) {
819 owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name, IDMAP_NAMESZ);
820 if (owner_namelen < 0) {
821 dprintk("nfs: couldn't resolve uid %d to string\n",
824 strcpy(owner_name, "nobody");
825 owner_namelen = sizeof("nobody") - 1;
828 len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
830 if (iap->ia_valid & ATTR_GID) {
831 owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group, IDMAP_NAMESZ);
832 if (owner_grouplen < 0) {
833 dprintk("nfs: couldn't resolve gid %d to string\n",
835 strcpy(owner_group, "nobody");
836 owner_grouplen = sizeof("nobody") - 1;
839 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
841 if (iap->ia_valid & ATTR_ATIME_SET)
843 else if (iap->ia_valid & ATTR_ATIME)
845 if (iap->ia_valid & ATTR_MTIME_SET)
847 else if (iap->ia_valid & ATTR_MTIME)
849 p = reserve_space(xdr, len);
852 * We write the bitmap length now, but leave the bitmap and the attribute
853 * buffer length to be backfilled at the end of this routine.
855 *p++ = cpu_to_be32(2);
859 if (iap->ia_valid & ATTR_SIZE) {
860 bmval0 |= FATTR4_WORD0_SIZE;
861 p = xdr_encode_hyper(p, iap->ia_size);
863 if (iap->ia_valid & ATTR_MODE) {
864 bmval1 |= FATTR4_WORD1_MODE;
865 *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
867 if (iap->ia_valid & ATTR_UID) {
868 bmval1 |= FATTR4_WORD1_OWNER;
869 p = xdr_encode_opaque(p, owner_name, owner_namelen);
871 if (iap->ia_valid & ATTR_GID) {
872 bmval1 |= FATTR4_WORD1_OWNER_GROUP;
873 p = xdr_encode_opaque(p, owner_group, owner_grouplen);
875 if (iap->ia_valid & ATTR_ATIME_SET) {
876 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
877 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
878 *p++ = cpu_to_be32(0);
879 *p++ = cpu_to_be32(iap->ia_atime.tv_sec);
880 *p++ = cpu_to_be32(iap->ia_atime.tv_nsec);
882 else if (iap->ia_valid & ATTR_ATIME) {
883 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
884 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
886 if (iap->ia_valid & ATTR_MTIME_SET) {
887 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
888 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
889 *p++ = cpu_to_be32(0);
890 *p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
891 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
893 else if (iap->ia_valid & ATTR_MTIME) {
894 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
895 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
899 * Now we backfill the bitmap and the attribute buffer length.
901 if (len != ((char *)p - (char *)q) + 4) {
902 printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n",
903 len, ((char *)p - (char *)q) + 4);
906 len = (char *)p - (char *)q - 12;
907 *q++ = htonl(bmval0);
908 *q++ = htonl(bmval1);
914 static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr)
918 p = reserve_space(xdr, 8);
919 *p++ = cpu_to_be32(OP_ACCESS);
920 *p = cpu_to_be32(access);
922 hdr->replen += decode_access_maxsz;
925 static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
929 p = reserve_space(xdr, 8+NFS4_STATEID_SIZE);
930 *p++ = cpu_to_be32(OP_CLOSE);
931 *p++ = cpu_to_be32(arg->seqid->sequence->counter);
932 xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
934 hdr->replen += decode_close_maxsz;
937 static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
941 p = reserve_space(xdr, 16);
942 *p++ = cpu_to_be32(OP_COMMIT);
943 p = xdr_encode_hyper(p, args->offset);
944 *p = cpu_to_be32(args->count);
946 hdr->replen += decode_commit_maxsz;
949 static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr)
953 p = reserve_space(xdr, 8);
954 *p++ = cpu_to_be32(OP_CREATE);
955 *p = cpu_to_be32(create->ftype);
957 switch (create->ftype) {
959 p = reserve_space(xdr, 4);
960 *p = cpu_to_be32(create->u.symlink.len);
961 xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len);
964 case NF4BLK: case NF4CHR:
965 p = reserve_space(xdr, 8);
966 *p++ = cpu_to_be32(create->u.device.specdata1);
967 *p = cpu_to_be32(create->u.device.specdata2);
974 encode_string(xdr, create->name->len, create->name->name);
976 hdr->replen += decode_create_maxsz;
978 encode_attrs(xdr, create->attrs, create->server);
981 static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr)
985 p = reserve_space(xdr, 12);
986 *p++ = cpu_to_be32(OP_GETATTR);
987 *p++ = cpu_to_be32(1);
988 *p = cpu_to_be32(bitmap);
990 hdr->replen += decode_getattr_maxsz;
993 static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr)
997 p = reserve_space(xdr, 16);
998 *p++ = cpu_to_be32(OP_GETATTR);
999 *p++ = cpu_to_be32(2);
1000 *p++ = cpu_to_be32(bm0);
1001 *p = cpu_to_be32(bm1);
1003 hdr->replen += decode_getattr_maxsz;
1006 static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1008 encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0],
1009 bitmask[1] & nfs4_fattr_bitmap[1], hdr);
1012 static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1014 encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0],
1015 bitmask[1] & nfs4_fsinfo_bitmap[1], hdr);
1018 static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1020 encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0],
1021 bitmask[1] & nfs4_fs_locations_bitmap[1], hdr);
1024 static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1028 p = reserve_space(xdr, 4);
1029 *p = cpu_to_be32(OP_GETFH);
1031 hdr->replen += decode_getfh_maxsz;
1034 static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1038 p = reserve_space(xdr, 8 + name->len);
1039 *p++ = cpu_to_be32(OP_LINK);
1040 xdr_encode_opaque(p, name->name, name->len);
1042 hdr->replen += decode_link_maxsz;
1045 static inline int nfs4_lock_type(struct file_lock *fl, int block)
1047 if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK)
1048 return block ? NFS4_READW_LT : NFS4_READ_LT;
1049 return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT;
1052 static inline uint64_t nfs4_lock_length(struct file_lock *fl)
1054 if (fl->fl_end == OFFSET_MAX)
1055 return ~(uint64_t)0;
1056 return fl->fl_end - fl->fl_start + 1;
1059 static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner)
1063 p = reserve_space(xdr, 28);
1064 p = xdr_encode_hyper(p, lowner->clientid);
1065 *p++ = cpu_to_be32(16);
1066 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
1067 xdr_encode_hyper(p, lowner->id);
1071 * opcode,type,reclaim,offset,length,new_lock_owner = 32
1072 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
1074 static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr)
1078 p = reserve_space(xdr, 32);
1079 *p++ = cpu_to_be32(OP_LOCK);
1080 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block));
1081 *p++ = cpu_to_be32(args->reclaim);
1082 p = xdr_encode_hyper(p, args->fl->fl_start);
1083 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1084 *p = cpu_to_be32(args->new_lock_owner);
1085 if (args->new_lock_owner){
1086 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
1087 *p++ = cpu_to_be32(args->open_seqid->sequence->counter);
1088 p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE);
1089 *p++ = cpu_to_be32(args->lock_seqid->sequence->counter);
1090 encode_lockowner(xdr, &args->lock_owner);
1093 p = reserve_space(xdr, NFS4_STATEID_SIZE+4);
1094 p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE);
1095 *p = cpu_to_be32(args->lock_seqid->sequence->counter);
1098 hdr->replen += decode_lock_maxsz;
1101 static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr)
1105 p = reserve_space(xdr, 24);
1106 *p++ = cpu_to_be32(OP_LOCKT);
1107 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1108 p = xdr_encode_hyper(p, args->fl->fl_start);
1109 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1110 encode_lockowner(xdr, &args->lock_owner);
1112 hdr->replen += decode_lockt_maxsz;
1115 static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr)
1119 p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16);
1120 *p++ = cpu_to_be32(OP_LOCKU);
1121 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1122 *p++ = cpu_to_be32(args->seqid->sequence->counter);
1123 p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
1124 p = xdr_encode_hyper(p, args->fl->fl_start);
1125 xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1127 hdr->replen += decode_locku_maxsz;
1130 static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr)
1134 p = reserve_space(xdr, 4);
1135 *p = cpu_to_be32(OP_RELEASE_LOCKOWNER);
1136 encode_lockowner(xdr, lowner);
1138 hdr->replen += decode_release_lockowner_maxsz;
1141 static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1143 int len = name->len;
1146 p = reserve_space(xdr, 8 + len);
1147 *p++ = cpu_to_be32(OP_LOOKUP);
1148 xdr_encode_opaque(p, name->name, len);
1150 hdr->replen += decode_lookup_maxsz;
1153 static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode)
1157 p = reserve_space(xdr, 8);
1158 switch (fmode & (FMODE_READ|FMODE_WRITE)) {
1160 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ);
1163 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE);
1165 case FMODE_READ|FMODE_WRITE:
1166 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH);
1169 *p++ = cpu_to_be32(0);
1171 *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */
1174 static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1178 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1181 p = reserve_space(xdr, 8);
1182 *p++ = cpu_to_be32(OP_OPEN);
1183 *p = cpu_to_be32(arg->seqid->sequence->counter);
1184 encode_share_access(xdr, arg->fmode);
1185 p = reserve_space(xdr, 28);
1186 p = xdr_encode_hyper(p, arg->clientid);
1187 *p++ = cpu_to_be32(16);
1188 p = xdr_encode_opaque_fixed(p, "open id:", 8);
1189 xdr_encode_hyper(p, arg->id);
1192 static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1195 struct nfs_client *clp;
1197 p = reserve_space(xdr, 4);
1198 switch(arg->open_flags & O_EXCL) {
1200 *p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
1201 encode_attrs(xdr, arg->u.attrs, arg->server);
1204 clp = arg->server->nfs_client;
1205 if (clp->cl_mvops->minor_version > 0) {
1206 if (nfs4_has_persistent_session(clp)) {
1207 *p = cpu_to_be32(NFS4_CREATE_GUARDED);
1208 encode_attrs(xdr, arg->u.attrs, arg->server);
1212 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1);
1213 encode_nfs4_verifier(xdr, &arg->u.verifier);
1215 encode_attrs(xdr, &dummy, arg->server);
1218 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
1219 encode_nfs4_verifier(xdr, &arg->u.verifier);
1224 static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1228 p = reserve_space(xdr, 4);
1229 switch (arg->open_flags & O_CREAT) {
1231 *p = cpu_to_be32(NFS4_OPEN_NOCREATE);
1234 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
1235 *p = cpu_to_be32(NFS4_OPEN_CREATE);
1236 encode_createmode(xdr, arg);
1240 static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type)
1244 p = reserve_space(xdr, 4);
1245 switch (delegation_type) {
1247 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE);
1250 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ);
1252 case FMODE_WRITE|FMODE_READ:
1253 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE);
1260 static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
1264 p = reserve_space(xdr, 4);
1265 *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL);
1266 encode_string(xdr, name->len, name->name);
1269 static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type)
1273 p = reserve_space(xdr, 4);
1274 *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS);
1275 encode_delegation_type(xdr, type);
1278 static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
1282 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1283 *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
1284 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
1285 encode_string(xdr, name->len, name->name);
1288 static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr)
1290 encode_openhdr(xdr, arg);
1291 encode_opentype(xdr, arg);
1292 switch (arg->claim) {
1293 case NFS4_OPEN_CLAIM_NULL:
1294 encode_claim_null(xdr, arg->name);
1296 case NFS4_OPEN_CLAIM_PREVIOUS:
1297 encode_claim_previous(xdr, arg->u.delegation_type);
1299 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
1300 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
1306 hdr->replen += decode_open_maxsz;
1309 static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr)
1313 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
1314 *p++ = cpu_to_be32(OP_OPEN_CONFIRM);
1315 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
1316 *p = cpu_to_be32(arg->seqid->sequence->counter);
1318 hdr->replen += decode_open_confirm_maxsz;
1321 static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
1325 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
1326 *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE);
1327 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
1328 *p = cpu_to_be32(arg->seqid->sequence->counter);
1329 encode_share_access(xdr, arg->fmode);
1331 hdr->replen += decode_open_downgrade_maxsz;
1335 encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr)
1340 p = reserve_space(xdr, 8 + len);
1341 *p++ = cpu_to_be32(OP_PUTFH);
1342 xdr_encode_opaque(p, fh->data, len);
1344 hdr->replen += decode_putfh_maxsz;
1347 static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1351 p = reserve_space(xdr, 4);
1352 *p = cpu_to_be32(OP_PUTROOTFH);
1354 hdr->replen += decode_putrootfh_maxsz;
1357 static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx)
1359 nfs4_stateid stateid;
1362 p = reserve_space(xdr, NFS4_STATEID_SIZE);
1363 if (ctx->state != NULL) {
1364 nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid);
1365 xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE);
1367 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
1370 static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr)
1374 p = reserve_space(xdr, 4);
1375 *p = cpu_to_be32(OP_READ);
1377 encode_stateid(xdr, args->context, args->lock_context);
1379 p = reserve_space(xdr, 12);
1380 p = xdr_encode_hyper(p, args->offset);
1381 *p = cpu_to_be32(args->count);
1383 hdr->replen += decode_read_maxsz;
1386 static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr)
1388 uint32_t attrs[2] = {0, 0};
1389 uint32_t dircount = readdir->count >> 1;
1392 if (readdir->plus) {
1393 attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE|
1394 FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE;
1395 attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER|
1396 FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV|
1397 FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS|
1398 FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
1401 attrs[0] |= FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID;
1402 attrs[1] |= FATTR4_WORD1_MOUNTED_ON_FILEID;
1403 /* Switch to mounted_on_fileid if the server supports it */
1404 if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)
1405 attrs[0] &= ~FATTR4_WORD0_FILEID;
1407 attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
1409 p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20);
1410 *p++ = cpu_to_be32(OP_READDIR);
1411 p = xdr_encode_hyper(p, readdir->cookie);
1412 p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE);
1413 *p++ = cpu_to_be32(dircount);
1414 *p++ = cpu_to_be32(readdir->count);
1415 *p++ = cpu_to_be32(2);
1417 *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]);
1418 *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]);
1420 hdr->replen += decode_readdir_maxsz;
1421 dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n",
1423 (unsigned long long)readdir->cookie,
1424 ((u32 *)readdir->verifier.data)[0],
1425 ((u32 *)readdir->verifier.data)[1],
1426 attrs[0] & readdir->bitmask[0],
1427 attrs[1] & readdir->bitmask[1]);
1430 static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr)
1434 p = reserve_space(xdr, 4);
1435 *p = cpu_to_be32(OP_READLINK);
1437 hdr->replen += decode_readlink_maxsz;
1440 static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1444 p = reserve_space(xdr, 8 + name->len);
1445 *p++ = cpu_to_be32(OP_REMOVE);
1446 xdr_encode_opaque(p, name->name, name->len);
1448 hdr->replen += decode_remove_maxsz;
1451 static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr)
1455 p = reserve_space(xdr, 4);
1456 *p = cpu_to_be32(OP_RENAME);
1457 encode_string(xdr, oldname->len, oldname->name);
1458 encode_string(xdr, newname->len, newname->name);
1460 hdr->replen += decode_rename_maxsz;
1463 static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr)
1467 p = reserve_space(xdr, 12);
1468 *p++ = cpu_to_be32(OP_RENEW);
1469 xdr_encode_hyper(p, client_stateid->cl_clientid);
1471 hdr->replen += decode_renew_maxsz;
1475 encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1479 p = reserve_space(xdr, 4);
1480 *p = cpu_to_be32(OP_RESTOREFH);
1482 hdr->replen += decode_restorefh_maxsz;
1486 encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr)
1490 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1491 *p++ = cpu_to_be32(OP_SETATTR);
1492 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
1493 p = reserve_space(xdr, 2*4);
1494 *p++ = cpu_to_be32(1);
1495 *p = cpu_to_be32(FATTR4_WORD0_ACL);
1496 if (arg->acl_len % 4)
1498 p = reserve_space(xdr, 4);
1499 *p = cpu_to_be32(arg->acl_len);
1500 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
1502 hdr->replen += decode_setacl_maxsz;
1507 encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1511 p = reserve_space(xdr, 4);
1512 *p = cpu_to_be32(OP_SAVEFH);
1514 hdr->replen += decode_savefh_maxsz;
1517 static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr)
1521 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1522 *p++ = cpu_to_be32(OP_SETATTR);
1523 xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE);
1525 hdr->replen += decode_setattr_maxsz;
1526 encode_attrs(xdr, arg->iap, server);
1529 static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr)
1533 p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE);
1534 *p++ = cpu_to_be32(OP_SETCLIENTID);
1535 xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE);
1537 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
1538 p = reserve_space(xdr, 4);
1539 *p = cpu_to_be32(setclientid->sc_prog);
1540 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1541 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
1542 p = reserve_space(xdr, 4);
1543 *p = cpu_to_be32(setclientid->sc_cb_ident);
1545 hdr->replen += decode_setclientid_maxsz;
1548 static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr)
1552 p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE);
1553 *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM);
1554 p = xdr_encode_hyper(p, arg->clientid);
1555 xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE);
1557 hdr->replen += decode_setclientid_confirm_maxsz;
1560 static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
1564 p = reserve_space(xdr, 4);
1565 *p = cpu_to_be32(OP_WRITE);
1567 encode_stateid(xdr, args->context, args->lock_context);
1569 p = reserve_space(xdr, 16);
1570 p = xdr_encode_hyper(p, args->offset);
1571 *p++ = cpu_to_be32(args->stable);
1572 *p = cpu_to_be32(args->count);
1574 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
1576 hdr->replen += decode_write_maxsz;
1579 static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr)
1583 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1585 *p++ = cpu_to_be32(OP_DELEGRETURN);
1586 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
1588 hdr->replen += decode_delegreturn_maxsz;
1591 #if defined(CONFIG_NFS_V4_1)
1592 /* NFSv4.1 operations */
1593 static void encode_exchange_id(struct xdr_stream *xdr,
1594 struct nfs41_exchange_id_args *args,
1595 struct compound_hdr *hdr)
1599 p = reserve_space(xdr, 4 + sizeof(args->verifier->data));
1600 *p++ = cpu_to_be32(OP_EXCHANGE_ID);
1601 xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data));
1603 encode_string(xdr, args->id_len, args->id);
1605 p = reserve_space(xdr, 12);
1606 *p++ = cpu_to_be32(args->flags);
1607 *p++ = cpu_to_be32(0); /* zero length state_protect4_a */
1608 *p = cpu_to_be32(0); /* zero length implementation id array */
1610 hdr->replen += decode_exchange_id_maxsz;
1613 static void encode_create_session(struct xdr_stream *xdr,
1614 struct nfs41_create_session_args *args,
1615 struct compound_hdr *hdr)
1618 char machine_name[NFS4_MAX_MACHINE_NAME_LEN];
1620 struct nfs_client *clp = args->client;
1621 u32 max_resp_sz_cached;
1624 * Assumes OPEN is the biggest non-idempotent compound.
1625 * 2 is the verifier.
1627 max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE +
1628 RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT;
1630 len = scnprintf(machine_name, sizeof(machine_name), "%s",
1633 p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12);
1634 *p++ = cpu_to_be32(OP_CREATE_SESSION);
1635 p = xdr_encode_hyper(p, clp->cl_ex_clid);
1636 *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */
1637 *p++ = cpu_to_be32(args->flags); /*flags */
1640 *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */
1641 *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */
1642 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */
1643 *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */
1644 *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */
1645 *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */
1646 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1649 *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */
1650 *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */
1651 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */
1652 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1653 *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */
1654 *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */
1655 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1657 *p++ = cpu_to_be32(args->cb_program); /* cb_program */
1658 *p++ = cpu_to_be32(1);
1659 *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */
1661 /* authsys_parms rfc1831 */
1662 *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */
1663 p = xdr_encode_opaque(p, machine_name, len);
1664 *p++ = cpu_to_be32(0); /* UID */
1665 *p++ = cpu_to_be32(0); /* GID */
1666 *p = cpu_to_be32(0); /* No more gids */
1668 hdr->replen += decode_create_session_maxsz;
1671 static void encode_destroy_session(struct xdr_stream *xdr,
1672 struct nfs4_session *session,
1673 struct compound_hdr *hdr)
1676 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN);
1677 *p++ = cpu_to_be32(OP_DESTROY_SESSION);
1678 xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1680 hdr->replen += decode_destroy_session_maxsz;
1683 static void encode_reclaim_complete(struct xdr_stream *xdr,
1684 struct nfs41_reclaim_complete_args *args,
1685 struct compound_hdr *hdr)
1689 p = reserve_space(xdr, 8);
1690 *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE);
1691 *p++ = cpu_to_be32(args->one_fs);
1693 hdr->replen += decode_reclaim_complete_maxsz;
1695 #endif /* CONFIG_NFS_V4_1 */
1697 static void encode_sequence(struct xdr_stream *xdr,
1698 const struct nfs4_sequence_args *args,
1699 struct compound_hdr *hdr)
1701 #if defined(CONFIG_NFS_V4_1)
1702 struct nfs4_session *session = args->sa_session;
1703 struct nfs4_slot_table *tp;
1704 struct nfs4_slot *slot;
1710 tp = &session->fc_slot_table;
1712 WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE);
1713 slot = tp->slots + args->sa_slotid;
1715 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16);
1716 *p++ = cpu_to_be32(OP_SEQUENCE);
1719 * Sessionid + seqid + slotid + max slotid + cache_this
1721 dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
1722 "max_slotid=%d cache_this=%d\n",
1724 ((u32 *)session->sess_id.data)[0],
1725 ((u32 *)session->sess_id.data)[1],
1726 ((u32 *)session->sess_id.data)[2],
1727 ((u32 *)session->sess_id.data)[3],
1728 slot->seq_nr, args->sa_slotid,
1729 tp->highest_used_slotid, args->sa_cache_this);
1730 p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1731 *p++ = cpu_to_be32(slot->seq_nr);
1732 *p++ = cpu_to_be32(args->sa_slotid);
1733 *p++ = cpu_to_be32(tp->highest_used_slotid);
1734 *p = cpu_to_be32(args->sa_cache_this);
1736 hdr->replen += decode_sequence_maxsz;
1737 #endif /* CONFIG_NFS_V4_1 */
1741 * END OF "GENERIC" ENCODE ROUTINES.
1744 static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
1746 #if defined(CONFIG_NFS_V4_1)
1747 if (args->sa_session)
1748 return args->sa_session->clp->cl_mvops->minor_version;
1749 #endif /* CONFIG_NFS_V4_1 */
1754 * Encode an ACCESS request
1756 static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args)
1758 struct xdr_stream xdr;
1759 struct compound_hdr hdr = {
1760 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
1763 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1764 encode_compound_hdr(&xdr, req, &hdr);
1765 encode_sequence(&xdr, &args->seq_args, &hdr);
1766 encode_putfh(&xdr, args->fh, &hdr);
1767 encode_access(&xdr, args->access, &hdr);
1768 encode_getfattr(&xdr, args->bitmask, &hdr);
1774 * Encode LOOKUP request
1776 static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args)
1778 struct xdr_stream xdr;
1779 struct compound_hdr hdr = {
1780 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
1783 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1784 encode_compound_hdr(&xdr, req, &hdr);
1785 encode_sequence(&xdr, &args->seq_args, &hdr);
1786 encode_putfh(&xdr, args->dir_fh, &hdr);
1787 encode_lookup(&xdr, args->name, &hdr);
1788 encode_getfh(&xdr, &hdr);
1789 encode_getfattr(&xdr, args->bitmask, &hdr);
1795 * Encode LOOKUP_ROOT request
1797 static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_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_putrootfh(&xdr, &hdr);
1808 encode_getfh(&xdr, &hdr);
1809 encode_getfattr(&xdr, args->bitmask, &hdr);
1815 * Encode REMOVE request
1817 static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args)
1819 struct xdr_stream xdr;
1820 struct compound_hdr hdr = {
1821 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
1824 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1825 encode_compound_hdr(&xdr, req, &hdr);
1826 encode_sequence(&xdr, &args->seq_args, &hdr);
1827 encode_putfh(&xdr, args->fh, &hdr);
1828 encode_remove(&xdr, &args->name, &hdr);
1829 encode_getfattr(&xdr, args->bitmask, &hdr);
1835 * Encode RENAME request
1837 static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs_renameargs *args)
1839 struct xdr_stream xdr;
1840 struct compound_hdr hdr = {
1841 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
1844 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1845 encode_compound_hdr(&xdr, req, &hdr);
1846 encode_sequence(&xdr, &args->seq_args, &hdr);
1847 encode_putfh(&xdr, args->old_dir, &hdr);
1848 encode_savefh(&xdr, &hdr);
1849 encode_putfh(&xdr, args->new_dir, &hdr);
1850 encode_rename(&xdr, args->old_name, args->new_name, &hdr);
1851 encode_getfattr(&xdr, args->bitmask, &hdr);
1852 encode_restorefh(&xdr, &hdr);
1853 encode_getfattr(&xdr, args->bitmask, &hdr);
1859 * Encode LINK request
1861 static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args)
1863 struct xdr_stream xdr;
1864 struct compound_hdr hdr = {
1865 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
1868 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1869 encode_compound_hdr(&xdr, req, &hdr);
1870 encode_sequence(&xdr, &args->seq_args, &hdr);
1871 encode_putfh(&xdr, args->fh, &hdr);
1872 encode_savefh(&xdr, &hdr);
1873 encode_putfh(&xdr, args->dir_fh, &hdr);
1874 encode_link(&xdr, args->name, &hdr);
1875 encode_getfattr(&xdr, args->bitmask, &hdr);
1876 encode_restorefh(&xdr, &hdr);
1877 encode_getfattr(&xdr, args->bitmask, &hdr);
1883 * Encode CREATE request
1885 static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args)
1887 struct xdr_stream xdr;
1888 struct compound_hdr hdr = {
1889 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
1892 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1893 encode_compound_hdr(&xdr, req, &hdr);
1894 encode_sequence(&xdr, &args->seq_args, &hdr);
1895 encode_putfh(&xdr, args->dir_fh, &hdr);
1896 encode_savefh(&xdr, &hdr);
1897 encode_create(&xdr, args, &hdr);
1898 encode_getfh(&xdr, &hdr);
1899 encode_getfattr(&xdr, args->bitmask, &hdr);
1900 encode_restorefh(&xdr, &hdr);
1901 encode_getfattr(&xdr, args->bitmask, &hdr);
1907 * Encode SYMLINK request
1909 static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args)
1911 return nfs4_xdr_enc_create(req, p, args);
1915 * Encode GETATTR request
1917 static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args)
1919 struct xdr_stream xdr;
1920 struct compound_hdr hdr = {
1921 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
1924 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1925 encode_compound_hdr(&xdr, req, &hdr);
1926 encode_sequence(&xdr, &args->seq_args, &hdr);
1927 encode_putfh(&xdr, args->fh, &hdr);
1928 encode_getfattr(&xdr, args->bitmask, &hdr);
1934 * Encode a CLOSE request
1936 static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args)
1938 struct xdr_stream xdr;
1939 struct compound_hdr hdr = {
1940 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
1943 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1944 encode_compound_hdr(&xdr, req, &hdr);
1945 encode_sequence(&xdr, &args->seq_args, &hdr);
1946 encode_putfh(&xdr, args->fh, &hdr);
1947 encode_close(&xdr, args, &hdr);
1948 encode_getfattr(&xdr, args->bitmask, &hdr);
1954 * Encode an OPEN request
1956 static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args)
1958 struct xdr_stream xdr;
1959 struct compound_hdr hdr = {
1960 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
1963 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1964 encode_compound_hdr(&xdr, req, &hdr);
1965 encode_sequence(&xdr, &args->seq_args, &hdr);
1966 encode_putfh(&xdr, args->fh, &hdr);
1967 encode_savefh(&xdr, &hdr);
1968 encode_open(&xdr, args, &hdr);
1969 encode_getfh(&xdr, &hdr);
1970 encode_getfattr(&xdr, args->bitmask, &hdr);
1971 encode_restorefh(&xdr, &hdr);
1972 encode_getfattr(&xdr, args->bitmask, &hdr);
1978 * Encode an OPEN_CONFIRM request
1980 static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args)
1982 struct xdr_stream xdr;
1983 struct compound_hdr hdr = {
1987 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1988 encode_compound_hdr(&xdr, req, &hdr);
1989 encode_putfh(&xdr, args->fh, &hdr);
1990 encode_open_confirm(&xdr, args, &hdr);
1996 * Encode an OPEN request with no attributes.
1998 static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *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_open(&xdr, args, &hdr);
2010 encode_getfattr(&xdr, args->bitmask, &hdr);
2016 * Encode an OPEN_DOWNGRADE request
2018 static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args)
2020 struct xdr_stream xdr;
2021 struct compound_hdr hdr = {
2022 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2025 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2026 encode_compound_hdr(&xdr, req, &hdr);
2027 encode_sequence(&xdr, &args->seq_args, &hdr);
2028 encode_putfh(&xdr, args->fh, &hdr);
2029 encode_open_downgrade(&xdr, args, &hdr);
2030 encode_getfattr(&xdr, args->bitmask, &hdr);
2036 * Encode a LOCK request
2038 static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args)
2040 struct xdr_stream xdr;
2041 struct compound_hdr hdr = {
2042 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2045 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2046 encode_compound_hdr(&xdr, req, &hdr);
2047 encode_sequence(&xdr, &args->seq_args, &hdr);
2048 encode_putfh(&xdr, args->fh, &hdr);
2049 encode_lock(&xdr, args, &hdr);
2055 * Encode a LOCKT request
2057 static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args)
2059 struct xdr_stream xdr;
2060 struct compound_hdr hdr = {
2061 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2064 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2065 encode_compound_hdr(&xdr, req, &hdr);
2066 encode_sequence(&xdr, &args->seq_args, &hdr);
2067 encode_putfh(&xdr, args->fh, &hdr);
2068 encode_lockt(&xdr, args, &hdr);
2074 * Encode a LOCKU request
2076 static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args)
2078 struct xdr_stream xdr;
2079 struct compound_hdr hdr = {
2080 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2083 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2084 encode_compound_hdr(&xdr, req, &hdr);
2085 encode_sequence(&xdr, &args->seq_args, &hdr);
2086 encode_putfh(&xdr, args->fh, &hdr);
2087 encode_locku(&xdr, args, &hdr);
2092 static int nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, __be32 *p, struct nfs_release_lockowner_args *args)
2094 struct xdr_stream xdr;
2095 struct compound_hdr hdr = {
2099 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2100 encode_compound_hdr(&xdr, req, &hdr);
2101 encode_release_lockowner(&xdr, &args->lock_owner, &hdr);
2107 * Encode a READLINK request
2109 static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args)
2111 struct xdr_stream xdr;
2112 struct compound_hdr hdr = {
2113 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2116 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2117 encode_compound_hdr(&xdr, req, &hdr);
2118 encode_sequence(&xdr, &args->seq_args, &hdr);
2119 encode_putfh(&xdr, args->fh, &hdr);
2120 encode_readlink(&xdr, args, req, &hdr);
2122 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
2123 args->pgbase, args->pglen);
2129 * Encode a READDIR request
2131 static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args)
2133 struct xdr_stream xdr;
2134 struct compound_hdr hdr = {
2135 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2138 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2139 encode_compound_hdr(&xdr, req, &hdr);
2140 encode_sequence(&xdr, &args->seq_args, &hdr);
2141 encode_putfh(&xdr, args->fh, &hdr);
2142 encode_readdir(&xdr, args, req, &hdr);
2144 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
2145 args->pgbase, args->count);
2146 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
2147 __func__, hdr.replen << 2, args->pages,
2148 args->pgbase, args->count);
2154 * Encode a READ request
2156 static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
2158 struct xdr_stream xdr;
2159 struct compound_hdr hdr = {
2160 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2163 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2164 encode_compound_hdr(&xdr, req, &hdr);
2165 encode_sequence(&xdr, &args->seq_args, &hdr);
2166 encode_putfh(&xdr, args->fh, &hdr);
2167 encode_read(&xdr, args, &hdr);
2169 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
2170 args->pages, args->pgbase, args->count);
2171 req->rq_rcv_buf.flags |= XDRBUF_READ;
2177 * Encode an SETATTR request
2179 static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args)
2181 struct xdr_stream xdr;
2182 struct compound_hdr hdr = {
2183 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2186 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2187 encode_compound_hdr(&xdr, req, &hdr);
2188 encode_sequence(&xdr, &args->seq_args, &hdr);
2189 encode_putfh(&xdr, args->fh, &hdr);
2190 encode_setattr(&xdr, args, args->server, &hdr);
2191 encode_getfattr(&xdr, args->bitmask, &hdr);
2197 * Encode a GETACL request
2200 nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p,
2201 struct nfs_getaclargs *args)
2203 struct xdr_stream xdr;
2204 struct compound_hdr hdr = {
2205 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2209 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2210 encode_compound_hdr(&xdr, req, &hdr);
2211 encode_sequence(&xdr, &args->seq_args, &hdr);
2212 encode_putfh(&xdr, args->fh, &hdr);
2213 replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1;
2214 encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr);
2216 xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
2217 args->acl_pages, args->acl_pgbase, args->acl_len);
2223 * Encode a WRITE request
2225 static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args)
2227 struct xdr_stream xdr;
2228 struct compound_hdr hdr = {
2229 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2232 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2233 encode_compound_hdr(&xdr, req, &hdr);
2234 encode_sequence(&xdr, &args->seq_args, &hdr);
2235 encode_putfh(&xdr, args->fh, &hdr);
2236 encode_write(&xdr, args, &hdr);
2237 req->rq_snd_buf.flags |= XDRBUF_WRITE;
2238 encode_getfattr(&xdr, args->bitmask, &hdr);
2246 static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args)
2248 struct xdr_stream xdr;
2249 struct compound_hdr hdr = {
2250 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2253 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2254 encode_compound_hdr(&xdr, req, &hdr);
2255 encode_sequence(&xdr, &args->seq_args, &hdr);
2256 encode_putfh(&xdr, args->fh, &hdr);
2257 encode_commit(&xdr, args, &hdr);
2258 encode_getfattr(&xdr, args->bitmask, &hdr);
2266 static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args)
2268 struct xdr_stream xdr;
2269 struct compound_hdr hdr = {
2270 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2273 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2274 encode_compound_hdr(&xdr, req, &hdr);
2275 encode_sequence(&xdr, &args->seq_args, &hdr);
2276 encode_putfh(&xdr, args->fh, &hdr);
2277 encode_fsinfo(&xdr, args->bitmask, &hdr);
2283 * a PATHCONF request
2285 static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args)
2287 struct xdr_stream xdr;
2288 struct compound_hdr hdr = {
2289 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2292 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2293 encode_compound_hdr(&xdr, req, &hdr);
2294 encode_sequence(&xdr, &args->seq_args, &hdr);
2295 encode_putfh(&xdr, args->fh, &hdr);
2296 encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0],
2305 static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args)
2307 struct xdr_stream xdr;
2308 struct compound_hdr hdr = {
2309 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2312 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2313 encode_compound_hdr(&xdr, req, &hdr);
2314 encode_sequence(&xdr, &args->seq_args, &hdr);
2315 encode_putfh(&xdr, args->fh, &hdr);
2316 encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0],
2317 args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr);
2323 * GETATTR_BITMAP request
2325 static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p,
2326 struct nfs4_server_caps_arg *args)
2328 struct xdr_stream xdr;
2329 struct compound_hdr hdr = {
2330 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2333 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2334 encode_compound_hdr(&xdr, req, &hdr);
2335 encode_sequence(&xdr, &args->seq_args, &hdr);
2336 encode_putfh(&xdr, args->fhandle, &hdr);
2337 encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
2338 FATTR4_WORD0_LINK_SUPPORT|
2339 FATTR4_WORD0_SYMLINK_SUPPORT|
2340 FATTR4_WORD0_ACLSUPPORT, &hdr);
2348 static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp)
2350 struct xdr_stream xdr;
2351 struct compound_hdr hdr = {
2355 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2356 encode_compound_hdr(&xdr, req, &hdr);
2357 encode_renew(&xdr, clp, &hdr);
2363 * a SETCLIENTID request
2365 static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc)
2367 struct xdr_stream xdr;
2368 struct compound_hdr hdr = {
2372 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2373 encode_compound_hdr(&xdr, req, &hdr);
2374 encode_setclientid(&xdr, sc, &hdr);
2380 * a SETCLIENTID_CONFIRM request
2382 static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid_res *arg)
2384 struct xdr_stream xdr;
2385 struct compound_hdr hdr = {
2388 const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
2390 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2391 encode_compound_hdr(&xdr, req, &hdr);
2392 encode_setclientid_confirm(&xdr, arg, &hdr);
2393 encode_putrootfh(&xdr, &hdr);
2394 encode_fsinfo(&xdr, lease_bitmap, &hdr);
2400 * DELEGRETURN request
2402 static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args)
2404 struct xdr_stream xdr;
2405 struct compound_hdr hdr = {
2406 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2409 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2410 encode_compound_hdr(&xdr, req, &hdr);
2411 encode_sequence(&xdr, &args->seq_args, &hdr);
2412 encode_putfh(&xdr, args->fhandle, &hdr);
2413 encode_delegreturn(&xdr, args->stateid, &hdr);
2414 encode_getfattr(&xdr, args->bitmask, &hdr);
2420 * Encode FS_LOCATIONS request
2422 static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args)
2424 struct xdr_stream xdr;
2425 struct compound_hdr hdr = {
2426 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2430 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2431 encode_compound_hdr(&xdr, req, &hdr);
2432 encode_sequence(&xdr, &args->seq_args, &hdr);
2433 encode_putfh(&xdr, args->dir_fh, &hdr);
2434 encode_lookup(&xdr, args->name, &hdr);
2435 replen = hdr.replen; /* get the attribute into args->page */
2436 encode_fs_locations(&xdr, args->bitmask, &hdr);
2438 xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
2444 #if defined(CONFIG_NFS_V4_1)
2446 * EXCHANGE_ID request
2448 static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p,
2449 struct nfs41_exchange_id_args *args)
2451 struct xdr_stream xdr;
2452 struct compound_hdr hdr = {
2453 .minorversion = args->client->cl_mvops->minor_version,
2456 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2457 encode_compound_hdr(&xdr, req, &hdr);
2458 encode_exchange_id(&xdr, args, &hdr);
2464 * a CREATE_SESSION request
2466 static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p,
2467 struct nfs41_create_session_args *args)
2469 struct xdr_stream xdr;
2470 struct compound_hdr hdr = {
2471 .minorversion = args->client->cl_mvops->minor_version,
2474 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2475 encode_compound_hdr(&xdr, req, &hdr);
2476 encode_create_session(&xdr, args, &hdr);
2482 * a DESTROY_SESSION request
2484 static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p,
2485 struct nfs4_session *session)
2487 struct xdr_stream xdr;
2488 struct compound_hdr hdr = {
2489 .minorversion = session->clp->cl_mvops->minor_version,
2492 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2493 encode_compound_hdr(&xdr, req, &hdr);
2494 encode_destroy_session(&xdr, session, &hdr);
2500 * a SEQUENCE request
2502 static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p,
2503 struct nfs4_sequence_args *args)
2505 struct xdr_stream xdr;
2506 struct compound_hdr hdr = {
2507 .minorversion = nfs4_xdr_minorversion(args),
2510 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2511 encode_compound_hdr(&xdr, req, &hdr);
2512 encode_sequence(&xdr, args, &hdr);
2518 * a GET_LEASE_TIME request
2520 static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p,
2521 struct nfs4_get_lease_time_args *args)
2523 struct xdr_stream xdr;
2524 struct compound_hdr hdr = {
2525 .minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
2527 const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
2529 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2530 encode_compound_hdr(&xdr, req, &hdr);
2531 encode_sequence(&xdr, &args->la_seq_args, &hdr);
2532 encode_putrootfh(&xdr, &hdr);
2533 encode_fsinfo(&xdr, lease_bitmap, &hdr);
2539 * a RECLAIM_COMPLETE request
2541 static int nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, uint32_t *p,
2542 struct nfs41_reclaim_complete_args *args)
2544 struct xdr_stream xdr;
2545 struct compound_hdr hdr = {
2546 .minorversion = nfs4_xdr_minorversion(&args->seq_args)
2549 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2550 encode_compound_hdr(&xdr, req, &hdr);
2551 encode_sequence(&xdr, &args->seq_args, &hdr);
2552 encode_reclaim_complete(&xdr, args, &hdr);
2557 #endif /* CONFIG_NFS_V4_1 */
2559 static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
2561 dprintk("nfs: %s: prematurely hit end of receive buffer. "
2562 "Remaining buffer length is %tu words.\n",
2563 func, xdr->end - xdr->p);
2566 static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
2570 p = xdr_inline_decode(xdr, 4);
2573 *len = be32_to_cpup(p);
2574 p = xdr_inline_decode(xdr, *len);
2577 *string = (char *)p;
2580 print_overflow_msg(__func__, xdr);
2584 static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
2588 p = xdr_inline_decode(xdr, 8);
2591 hdr->status = be32_to_cpup(p++);
2592 hdr->taglen = be32_to_cpup(p);
2594 p = xdr_inline_decode(xdr, hdr->taglen + 4);
2597 hdr->tag = (char *)p;
2598 p += XDR_QUADLEN(hdr->taglen);
2599 hdr->nops = be32_to_cpup(p);
2600 if (unlikely(hdr->nops < 1))
2601 return nfs4_stat_to_errno(hdr->status);
2604 print_overflow_msg(__func__, xdr);
2608 static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
2614 p = xdr_inline_decode(xdr, 8);
2617 opnum = be32_to_cpup(p++);
2618 if (opnum != expected) {
2619 dprintk("nfs: Server returned operation"
2620 " %d but we issued a request for %d\n",
2624 nfserr = be32_to_cpup(p);
2625 if (nfserr != NFS_OK)
2626 return nfs4_stat_to_errno(nfserr);
2629 print_overflow_msg(__func__, xdr);
2634 static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp)
2637 unsigned int strlen;
2640 p = xdr_inline_decode(xdr, 12);
2642 return decode_opaque_inline(xdr, &strlen, &str);
2643 print_overflow_msg(__func__, xdr);
2647 static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
2652 p = xdr_inline_decode(xdr, 4);
2655 bmlen = be32_to_cpup(p);
2657 bitmap[0] = bitmap[1] = 0;
2658 p = xdr_inline_decode(xdr, (bmlen << 2));
2662 bitmap[0] = be32_to_cpup(p++);
2664 bitmap[1] = be32_to_cpup(p);
2668 print_overflow_msg(__func__, xdr);
2672 static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep)
2676 p = xdr_inline_decode(xdr, 4);
2679 *attrlen = be32_to_cpup(p);
2683 print_overflow_msg(__func__, xdr);
2687 static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
2689 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
2690 decode_attr_bitmap(xdr, bitmask);
2691 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
2693 bitmask[0] = bitmask[1] = 0;
2694 dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]);
2698 static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
2704 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
2706 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
2707 p = xdr_inline_decode(xdr, 4);
2710 *type = be32_to_cpup(p);
2711 if (*type < NF4REG || *type > NF4NAMEDATTR) {
2712 dprintk("%s: bad type %d\n", __func__, *type);
2715 bitmap[0] &= ~FATTR4_WORD0_TYPE;
2716 ret = NFS_ATTR_FATTR_TYPE;
2718 dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]);
2721 print_overflow_msg(__func__, xdr);
2725 static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
2731 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
2733 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
2734 p = xdr_inline_decode(xdr, 8);
2737 xdr_decode_hyper(p, change);
2738 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
2739 ret = NFS_ATTR_FATTR_CHANGE;
2741 dprintk("%s: change attribute=%Lu\n", __func__,
2742 (unsigned long long)*change);
2745 print_overflow_msg(__func__, xdr);
2749 static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
2755 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
2757 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
2758 p = xdr_inline_decode(xdr, 8);
2761 xdr_decode_hyper(p, size);
2762 bitmap[0] &= ~FATTR4_WORD0_SIZE;
2763 ret = NFS_ATTR_FATTR_SIZE;
2765 dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size);
2768 print_overflow_msg(__func__, xdr);
2772 static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2777 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
2779 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
2780 p = xdr_inline_decode(xdr, 4);
2783 *res = be32_to_cpup(p);
2784 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
2786 dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true");
2789 print_overflow_msg(__func__, xdr);
2793 static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2798 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
2800 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
2801 p = xdr_inline_decode(xdr, 4);
2804 *res = be32_to_cpup(p);
2805 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
2807 dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true");
2810 print_overflow_msg(__func__, xdr);
2814 static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid)
2821 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
2823 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
2824 p = xdr_inline_decode(xdr, 16);
2827 p = xdr_decode_hyper(p, &fsid->major);
2828 xdr_decode_hyper(p, &fsid->minor);
2829 bitmap[0] &= ~FATTR4_WORD0_FSID;
2830 ret = NFS_ATTR_FATTR_FSID;
2832 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__,
2833 (unsigned long long)fsid->major,
2834 (unsigned long long)fsid->minor);
2837 print_overflow_msg(__func__, xdr);
2841 static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2846 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
2848 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
2849 p = xdr_inline_decode(xdr, 4);
2852 *res = be32_to_cpup(p);
2853 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
2855 dprintk("%s: file size=%u\n", __func__, (unsigned int)*res);
2858 print_overflow_msg(__func__, xdr);
2862 static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap)
2866 if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U)))
2868 if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) {
2869 p = xdr_inline_decode(xdr, 4);
2872 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
2876 print_overflow_msg(__func__, xdr);
2880 static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh)
2886 memset(fh, 0, sizeof(*fh));
2888 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U)))
2890 if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) {
2891 p = xdr_inline_decode(xdr, 4);
2894 len = be32_to_cpup(p);
2895 if (len > NFS4_FHSIZE)
2897 p = xdr_inline_decode(xdr, len);
2901 memcpy(fh->data, p, len);
2904 bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE;
2908 print_overflow_msg(__func__, xdr);
2912 static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2916 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
2917 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
2919 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
2920 p = xdr_inline_decode(xdr, 4);
2923 *res = be32_to_cpup(p);
2924 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
2926 dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res);
2929 print_overflow_msg(__func__, xdr);
2933 static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
2939 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
2941 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
2942 p = xdr_inline_decode(xdr, 8);
2945 xdr_decode_hyper(p, fileid);
2946 bitmap[0] &= ~FATTR4_WORD0_FILEID;
2947 ret = NFS_ATTR_FATTR_FILEID;
2949 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
2952 print_overflow_msg(__func__, xdr);
2956 static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
2962 if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U)))
2964 if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) {
2965 p = xdr_inline_decode(xdr, 8);
2968 xdr_decode_hyper(p, fileid);
2969 bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
2970 ret = NFS_ATTR_FATTR_FILEID;
2972 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
2975 print_overflow_msg(__func__, xdr);
2979 static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
2985 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
2987 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
2988 p = xdr_inline_decode(xdr, 8);
2991 xdr_decode_hyper(p, res);
2992 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
2994 dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res);
2997 print_overflow_msg(__func__, xdr);
3001 static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3007 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
3009 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
3010 p = xdr_inline_decode(xdr, 8);
3013 xdr_decode_hyper(p, res);
3014 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
3016 dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res);
3019 print_overflow_msg(__func__, xdr);
3023 static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3029 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
3031 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
3032 p = xdr_inline_decode(xdr, 8);
3035 xdr_decode_hyper(p, res);
3036 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
3038 dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res);
3041 print_overflow_msg(__func__, xdr);
3045 static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
3051 p = xdr_inline_decode(xdr, 4);
3054 n = be32_to_cpup(p);
3058 path->ncomponents = 0;
3059 while (path->ncomponents < n) {
3060 struct nfs4_string *component = &path->components[path->ncomponents];
3061 status = decode_opaque_inline(xdr, &component->len, &component->data);
3062 if (unlikely(status != 0))
3064 if (path->ncomponents != n)
3066 dprintk("%s", component->data);
3067 if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS)
3068 path->ncomponents++;
3070 dprintk("cannot parse %d components in path\n", n);
3078 /* a root pathname is sent as a zero component4 */
3079 path->ncomponents = 1;
3080 path->components[0].len=0;
3081 path->components[0].data=NULL;
3082 dprintk("path /\n");
3085 dprintk(" status %d", status);
3089 print_overflow_msg(__func__, xdr);
3093 static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
3099 if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U)))
3102 if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS)))
3104 dprintk("%s: fsroot ", __func__);
3105 status = decode_pathname(xdr, &res->fs_path);
3106 if (unlikely(status != 0))
3108 p = xdr_inline_decode(xdr, 4);
3111 n = be32_to_cpup(p);
3114 res->nlocations = 0;
3115 while (res->nlocations < n) {
3117 struct nfs4_fs_location *loc = &res->locations[res->nlocations];
3119 p = xdr_inline_decode(xdr, 4);
3122 m = be32_to_cpup(p);
3125 dprintk("%s: servers ", __func__);
3126 while (loc->nservers < m) {
3127 struct nfs4_string *server = &loc->servers[loc->nservers];
3128 status = decode_opaque_inline(xdr, &server->len, &server->data);
3129 if (unlikely(status != 0))
3131 dprintk("%s ", server->data);
3132 if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS)
3136 dprintk("%s: using first %u of %u servers "
3137 "returned for location %u\n",
3139 NFS4_FS_LOCATION_MAXSERVERS,
3140 m, res->nlocations);
3141 for (i = loc->nservers; i < m; i++) {
3144 status = decode_opaque_inline(xdr, &len, &data);
3145 if (unlikely(status != 0))
3150 status = decode_pathname(xdr, &loc->rootpath);
3151 if (unlikely(status != 0))
3153 if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES)
3156 if (res->nlocations != 0)
3157 status = NFS_ATTR_FATTR_V4_REFERRAL;
3159 dprintk("%s: fs_locations done, error = %d\n", __func__, status);
3162 print_overflow_msg(__func__, xdr);
3168 static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3174 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
3176 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
3177 p = xdr_inline_decode(xdr, 8);
3180 xdr_decode_hyper(p, res);
3181 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
3183 dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res);
3186 print_overflow_msg(__func__, xdr);
3190 static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
3196 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
3198 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
3199 p = xdr_inline_decode(xdr, 4);
3202 *maxlink = be32_to_cpup(p);
3203 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
3205 dprintk("%s: maxlink=%u\n", __func__, *maxlink);
3208 print_overflow_msg(__func__, xdr);
3212 static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
3218 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
3220 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
3221 p = xdr_inline_decode(xdr, 4);
3224 *maxname = be32_to_cpup(p);
3225 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
3227 dprintk("%s: maxname=%u\n", __func__, *maxname);
3230 print_overflow_msg(__func__, xdr);
3234 static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3240 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
3242 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
3244 p = xdr_inline_decode(xdr, 8);
3247 xdr_decode_hyper(p, &maxread);
3248 if (maxread > 0x7FFFFFFF)
3249 maxread = 0x7FFFFFFF;
3250 *res = (uint32_t)maxread;
3251 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
3253 dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res);
3256 print_overflow_msg(__func__, xdr);
3260 static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3266 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
3268 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
3270 p = xdr_inline_decode(xdr, 8);
3273 xdr_decode_hyper(p, &maxwrite);
3274 if (maxwrite > 0x7FFFFFFF)
3275 maxwrite = 0x7FFFFFFF;
3276 *res = (uint32_t)maxwrite;
3277 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
3279 dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res);
3282 print_overflow_msg(__func__, xdr);
3286 static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode)
3293 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
3295 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
3296 p = xdr_inline_decode(xdr, 4);
3299 tmp = be32_to_cpup(p);
3300 *mode = tmp & ~S_IFMT;
3301 bitmap[1] &= ~FATTR4_WORD1_MODE;
3302 ret = NFS_ATTR_FATTR_MODE;
3304 dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode);
3307 print_overflow_msg(__func__, xdr);
3311 static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
3317 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
3319 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
3320 p = xdr_inline_decode(xdr, 4);
3323 *nlink = be32_to_cpup(p);
3324 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
3325 ret = NFS_ATTR_FATTR_NLINK;
3327 dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink);
3330 print_overflow_msg(__func__, xdr);
3334 static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
3335 struct nfs_client *clp, uint32_t *uid, int may_sleep)
3342 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
3344 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
3345 p = xdr_inline_decode(xdr, 4);
3348 len = be32_to_cpup(p);
3349 p = xdr_inline_decode(xdr, len);
3354 } else if (len < XDR_MAX_NETOBJ) {
3355 if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0)
3356 ret = NFS_ATTR_FATTR_OWNER;
3358 dprintk("%s: nfs_map_name_to_uid failed!\n",
3361 dprintk("%s: name too long (%u)!\n",
3363 bitmap[1] &= ~FATTR4_WORD1_OWNER;
3365 dprintk("%s: uid=%d\n", __func__, (int)*uid);
3368 print_overflow_msg(__func__, xdr);
3372 static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
3373 struct nfs_client *clp, uint32_t *gid, int may_sleep)
3380 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
3382 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
3383 p = xdr_inline_decode(xdr, 4);
3386 len = be32_to_cpup(p);
3387 p = xdr_inline_decode(xdr, len);
3392 } else if (len < XDR_MAX_NETOBJ) {
3393 if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0)
3394 ret = NFS_ATTR_FATTR_GROUP;
3396 dprintk("%s: nfs_map_group_to_gid failed!\n",
3399 dprintk("%s: name too long (%u)!\n",
3401 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
3403 dprintk("%s: gid=%d\n", __func__, (int)*gid);
3406 print_overflow_msg(__func__, xdr);
3410 static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
3412 uint32_t major = 0, minor = 0;
3417 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
3419 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
3422 p = xdr_inline_decode(xdr, 8);
3425 major = be32_to_cpup(p++);
3426 minor = be32_to_cpup(p);
3427 tmp = MKDEV(major, minor);
3428 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
3430 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
3431 ret = NFS_ATTR_FATTR_RDEV;
3433 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor);
3436 print_overflow_msg(__func__, xdr);
3440 static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3446 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
3448 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
3449 p = xdr_inline_decode(xdr, 8);
3452 xdr_decode_hyper(p, res);
3453 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
3455 dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res);
3458 print_overflow_msg(__func__, xdr);
3462 static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3468 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
3470 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
3471 p = xdr_inline_decode(xdr, 8);
3474 xdr_decode_hyper(p, res);
3475 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
3477 dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res);
3480 print_overflow_msg(__func__, xdr);
3484 static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3490 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
3492 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
3493 p = xdr_inline_decode(xdr, 8);
3496 xdr_decode_hyper(p, res);
3497 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
3499 dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res);
3502 print_overflow_msg(__func__, xdr);
3506 static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
3512 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
3514 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
3515 p = xdr_inline_decode(xdr, 8);
3518 xdr_decode_hyper(p, used);
3519 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
3520 ret = NFS_ATTR_FATTR_SPACE_USED;
3522 dprintk("%s: space used=%Lu\n", __func__,
3523 (unsigned long long)*used);
3526 print_overflow_msg(__func__, xdr);
3530 static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
3536 p = xdr_inline_decode(xdr, 12);
3539 p = xdr_decode_hyper(p, &sec);
3540 nsec = be32_to_cpup(p);
3541 time->tv_sec = (time_t)sec;
3542 time->tv_nsec = (long)nsec;
3545 print_overflow_msg(__func__, xdr);
3549 static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
3555 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
3557 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
3558 status = decode_attr_time(xdr, time);
3560 status = NFS_ATTR_FATTR_ATIME;
3561 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
3563 dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec);
3567 static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
3573 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
3575 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
3576 status = decode_attr_time(xdr, time);
3578 status = NFS_ATTR_FATTR_CTIME;
3579 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
3581 dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec);
3585 static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap,
3586 struct timespec *time)
3592 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U)))
3594 if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) {
3595 status = decode_attr_time(xdr, time);
3596 bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA;
3598 dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec,
3599 (long)time->tv_nsec);
3603 static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
3609 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
3611 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
3612 status = decode_attr_time(xdr, time);
3614 status = NFS_ATTR_FATTR_MTIME;
3615 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
3617 dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec);
3621 static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen)
3623 unsigned int attrwords = XDR_QUADLEN(attrlen);
3624 unsigned int nwords = xdr->p - savep;
3626 if (unlikely(attrwords != nwords)) {
3627 dprintk("%s: server returned incorrect attribute length: "
3631 (attrwords < nwords) ? '<' : '>',
3638 static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3642 p = xdr_inline_decode(xdr, 20);
3645 cinfo->atomic = be32_to_cpup(p++);
3646 p = xdr_decode_hyper(p, &cinfo->before);
3647 xdr_decode_hyper(p, &cinfo->after);
3650 print_overflow_msg(__func__, xdr);
3654 static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
3660 status = decode_op_hdr(xdr, OP_ACCESS);
3663 p = xdr_inline_decode(xdr, 8);
3666 supp = be32_to_cpup(p++);
3667 acc = be32_to_cpup(p);
3668 access->supported = supp;
3669 access->access = acc;
3672 print_overflow_msg(__func__, xdr);
3676 static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len)
3680 p = xdr_inline_decode(xdr, len);
3682 memcpy(buf, p, len);
3685 print_overflow_msg(__func__, xdr);
3689 static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
3691 return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE);
3694 static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
3698 status = decode_op_hdr(xdr, OP_CLOSE);
3700 nfs_increment_open_seqid(status, res->seqid);
3702 status = decode_stateid(xdr, &res->stateid);
3706 static int decode_verifier(struct xdr_stream *xdr, void *verifier)
3708 return decode_opaque_fixed(xdr, verifier, 8);
3711 static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
3715 status = decode_op_hdr(xdr, OP_COMMIT);
3717 status = decode_verifier(xdr, res->verf->verifier);
3721 static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3727 status = decode_op_hdr(xdr, OP_CREATE);
3730 if ((status = decode_change_info(xdr, cinfo)))
3732 p = xdr_inline_decode(xdr, 4);
3735 bmlen = be32_to_cpup(p);
3736 p = xdr_inline_decode(xdr, bmlen << 2);
3740 print_overflow_msg(__func__, xdr);
3744 static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
3747 uint32_t attrlen, bitmap[2] = {0};
3750 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3752 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3754 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3756 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
3758 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
3760 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
3762 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
3764 status = verify_attr_len(xdr, savep, attrlen);
3766 dprintk("%s: xdr returned %d!\n", __func__, -status);
3770 static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
3773 uint32_t attrlen, bitmap[2] = {0};
3776 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3778 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3780 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3783 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
3785 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
3787 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
3789 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
3791 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
3793 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
3796 status = verify_attr_len(xdr, savep, attrlen);
3798 dprintk("%s: xdr returned %d!\n", __func__, -status);
3802 static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
3805 uint32_t attrlen, bitmap[2] = {0};
3808 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3810 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3812 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3815 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
3817 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
3820 status = verify_attr_len(xdr, savep, attrlen);
3822 dprintk("%s: xdr returned %d!\n", __func__, -status);
3826 static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap,
3827 struct nfs_fattr *fattr, struct nfs_fh *fh,
3828 const struct nfs_server *server, int may_sleep)
3835 status = decode_attr_type(xdr, bitmap, &type);
3840 fattr->mode |= nfs_type2fmt[type];
3841 fattr->valid |= status;
3844 status = decode_attr_change(xdr, bitmap, &fattr->change_attr);
3847 fattr->valid |= status;
3849 status = decode_attr_size(xdr, bitmap, &fattr->size);
3852 fattr->valid |= status;
3854 status = decode_attr_fsid(xdr, bitmap, &fattr->fsid);
3857 fattr->valid |= status;
3859 status = decode_attr_error(xdr, bitmap);
3863 status = decode_attr_filehandle(xdr, bitmap, fh);
3867 status = decode_attr_fileid(xdr, bitmap, &fattr->fileid);
3870 fattr->valid |= status;
3872 status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr,
3873 struct nfs4_fs_locations,
3877 fattr->valid |= status;
3879 status = decode_attr_mode(xdr, bitmap, &fmode);
3883 fattr->mode |= fmode;
3884 fattr->valid |= status;
3887 status = decode_attr_nlink(xdr, bitmap, &fattr->nlink);
3890 fattr->valid |= status;
3892 status = decode_attr_owner(xdr, bitmap, server->nfs_client,
3893 &fattr->uid, may_sleep);
3896 fattr->valid |= status;
3898 status = decode_attr_group(xdr, bitmap, server->nfs_client,
3899 &fattr->gid, may_sleep);
3902 fattr->valid |= status;
3904 status = decode_attr_rdev(xdr, bitmap, &fattr->rdev);
3907 fattr->valid |= status;
3909 status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used);
3912 fattr->valid |= status;
3914 status = decode_attr_time_access(xdr, bitmap, &fattr->atime);
3917 fattr->valid |= status;
3919 status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime);
3922 fattr->valid |= status;
3924 status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime);
3927 fattr->valid |= status;
3929 status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid);
3932 if (status != 0 && !(fattr->valid & status)) {
3933 fattr->fileid = fileid;
3934 fattr->valid |= status;
3938 dprintk("%s: xdr returned %d\n", __func__, -status);
3942 static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr,
3943 struct nfs_fh *fh, const struct nfs_server *server, int may_sleep)
3950 status = decode_op_hdr(xdr, OP_GETATTR);
3954 status = decode_attr_bitmap(xdr, bitmap);
3958 status = decode_attr_length(xdr, &attrlen, &savep);
3962 status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, server, may_sleep);
3966 status = verify_attr_len(xdr, savep, attrlen);
3968 dprintk("%s: xdr returned %d\n", __func__, -status);
3972 static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr,
3973 const struct nfs_server *server, int may_sleep)
3975 return decode_getfattr_generic(xdr, fattr, NULL, server, may_sleep);
3978 static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
3981 uint32_t attrlen, bitmap[2];
3984 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3986 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3988 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3991 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
3993 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
3995 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
3997 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
3999 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
4000 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
4002 fsinfo->wtpref = fsinfo->wtmax;
4003 status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta);
4007 status = verify_attr_len(xdr, savep, attrlen);
4009 dprintk("%s: xdr returned %d!\n", __func__, -status);
4013 static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
4019 /* Zero handle first to allow comparisons */
4020 memset(fh, 0, sizeof(*fh));
4022 status = decode_op_hdr(xdr, OP_GETFH);
4026 p = xdr_inline_decode(xdr, 4);
4029 len = be32_to_cpup(p);
4030 if (len > NFS4_FHSIZE)
4033 p = xdr_inline_decode(xdr, len);
4036 memcpy(fh->data, p, len);
4039 print_overflow_msg(__func__, xdr);
4043 static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4047 status = decode_op_hdr(xdr, OP_LINK);
4050 return decode_change_info(xdr, cinfo);
4054 * We create the owner, so we know a proper owner.id length is 4.
4056 static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
4058 uint64_t offset, length, clientid;
4060 uint32_t namelen, type;
4062 p = xdr_inline_decode(xdr, 32); /* read 32 bytes */
4065 p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */
4066 p = xdr_decode_hyper(p, &length);
4067 type = be32_to_cpup(p++); /* 4 byte read */
4068 if (fl != NULL) { /* manipulate file lock */
4069 fl->fl_start = (loff_t)offset;
4070 fl->fl_end = fl->fl_start + (loff_t)length - 1;
4071 if (length == ~(uint64_t)0)
4072 fl->fl_end = OFFSET_MAX;
4073 fl->fl_type = F_WRLCK;
4075 fl->fl_type = F_RDLCK;
4078 p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */
4079 namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */
4080 p = xdr_inline_decode(xdr, namelen); /* variable size field */
4082 return -NFS4ERR_DENIED;
4084 print_overflow_msg(__func__, xdr);
4088 static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res)
4092 status = decode_op_hdr(xdr, OP_LOCK);
4096 status = decode_stateid(xdr, &res->stateid);
4097 if (unlikely(status))
4099 } else if (status == -NFS4ERR_DENIED)
4100 status = decode_lock_denied(xdr, NULL);
4101 if (res->open_seqid != NULL)
4102 nfs_increment_open_seqid(status, res->open_seqid);
4103 nfs_increment_lock_seqid(status, res->lock_seqid);
4108 static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res)
4111 status = decode_op_hdr(xdr, OP_LOCKT);
4112 if (status == -NFS4ERR_DENIED)
4113 return decode_lock_denied(xdr, res->denied);
4117 static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
4121 status = decode_op_hdr(xdr, OP_LOCKU);
4123 nfs_increment_lock_seqid(status, res->seqid);
4125 status = decode_stateid(xdr, &res->stateid);
4129 static int decode_release_lockowner(struct xdr_stream *xdr)
4131 return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER);
4134 static int decode_lookup(struct xdr_stream *xdr)
4136 return decode_op_hdr(xdr, OP_LOOKUP);
4139 /* This is too sick! */
4140 static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
4143 uint32_t limit_type, nblocks, blocksize;
4145 p = xdr_inline_decode(xdr, 12);
4148 limit_type = be32_to_cpup(p++);
4149 switch (limit_type) {
4151 xdr_decode_hyper(p, maxsize);
4154 nblocks = be32_to_cpup(p++);
4155 blocksize = be32_to_cpup(p);
4156 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
4160 print_overflow_msg(__func__, xdr);
4164 static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
4167 uint32_t delegation_type;
4170 p = xdr_inline_decode(xdr, 4);
4173 delegation_type = be32_to_cpup(p);
4174 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
4175 res->delegation_type = 0;
4178 status = decode_stateid(xdr, &res->delegation);
4179 if (unlikely(status))
4181 p = xdr_inline_decode(xdr, 4);
4184 res->do_recall = be32_to_cpup(p);
4186 switch (delegation_type) {
4187 case NFS4_OPEN_DELEGATE_READ:
4188 res->delegation_type = FMODE_READ;
4190 case NFS4_OPEN_DELEGATE_WRITE:
4191 res->delegation_type = FMODE_WRITE|FMODE_READ;
4192 if (decode_space_limit(xdr, &res->maxsize) < 0)
4195 return decode_ace(xdr, NULL, res->server->nfs_client);
4197 print_overflow_msg(__func__, xdr);
4201 static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
4204 uint32_t savewords, bmlen, i;
4207 status = decode_op_hdr(xdr, OP_OPEN);
4209 nfs_increment_open_seqid(status, res->seqid);
4211 status = decode_stateid(xdr, &res->stateid);
4212 if (unlikely(status))
4215 decode_change_info(xdr, &res->cinfo);
4217 p = xdr_inline_decode(xdr, 8);
4220 res->rflags = be32_to_cpup(p++);
4221 bmlen = be32_to_cpup(p);
4225 p = xdr_inline_decode(xdr, bmlen << 2);
4228 savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE);
4229 for (i = 0; i < savewords; ++i)
4230 res->attrset[i] = be32_to_cpup(p++);
4231 for (; i < NFS4_BITMAP_SIZE; i++)
4232 res->attrset[i] = 0;
4234 return decode_delegation(xdr, res);
4236 dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen);
4239 print_overflow_msg(__func__, xdr);
4243 static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
4247 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
4249 nfs_increment_open_seqid(status, res->seqid);
4251 status = decode_stateid(xdr, &res->stateid);
4255 static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
4259 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
4261 nfs_increment_open_seqid(status, res->seqid);
4263 status = decode_stateid(xdr, &res->stateid);
4267 static int decode_putfh(struct xdr_stream *xdr)
4269 return decode_op_hdr(xdr, OP_PUTFH);
4272 static int decode_putrootfh(struct xdr_stream *xdr)
4274 return decode_op_hdr(xdr, OP_PUTROOTFH);
4277 static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res)
4279 struct kvec *iov = req->rq_rcv_buf.head;
4281 uint32_t count, eof, recvd, hdrlen;
4284 status = decode_op_hdr(xdr, OP_READ);
4287 p = xdr_inline_decode(xdr, 8);
4290 eof = be32_to_cpup(p++);
4291 count = be32_to_cpup(p);
4292 hdrlen = (u8 *) p - (u8 *) iov->iov_base;
4293 recvd = req->rq_rcv_buf.len - hdrlen;
4294 if (count > recvd) {
4295 dprintk("NFS: server cheating in read reply: "
4296 "count %u > recvd %u\n", count, recvd);
4300 xdr_read_pages(xdr, count);
4305 print_overflow_msg(__func__, xdr);
4309 static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
4311 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
4312 struct kvec *iov = rcvbuf->head;
4314 u32 recvd, pglen = rcvbuf->page_len;
4317 status = decode_op_hdr(xdr, OP_READDIR);
4319 status = decode_verifier(xdr, readdir->verifier.data);
4320 if (unlikely(status))
4322 dprintk("%s: verifier = %08x:%08x\n",
4324 ((u32 *)readdir->verifier.data)[0],
4325 ((u32 *)readdir->verifier.data)[1]);
4328 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
4329 recvd = rcvbuf->len - hdrlen;
4332 xdr_read_pages(xdr, pglen);
4338 static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
4340 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
4341 struct kvec *iov = rcvbuf->head;
4347 status = decode_op_hdr(xdr, OP_READLINK);
4351 /* Convert length of symlink */
4352 p = xdr_inline_decode(xdr, 4);
4355 len = be32_to_cpup(p);
4356 if (len >= rcvbuf->page_len || len <= 0) {
4357 dprintk("nfs: server returned giant symlink!\n");
4358 return -ENAMETOOLONG;
4360 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
4361 recvd = req->rq_rcv_buf.len - hdrlen;
4363 dprintk("NFS: server cheating in readlink reply: "
4364 "count %u > recvd %u\n", len, recvd);
4367 xdr_read_pages(xdr, len);
4369 * The XDR encode routine has set things up so that
4370 * the link text will be copied directly into the
4371 * buffer. We just have to do overflow-checking,
4372 * and and null-terminate the text (the VFS expects
4373 * null-termination).
4375 xdr_terminate_string(rcvbuf, len);
4378 print_overflow_msg(__func__, xdr);
4382 static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4386 status = decode_op_hdr(xdr, OP_REMOVE);
4389 status = decode_change_info(xdr, cinfo);
4394 static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
4395 struct nfs4_change_info *new_cinfo)
4399 status = decode_op_hdr(xdr, OP_RENAME);
4402 if ((status = decode_change_info(xdr, old_cinfo)))
4404 status = decode_change_info(xdr, new_cinfo);
4409 static int decode_renew(struct xdr_stream *xdr)
4411 return decode_op_hdr(xdr, OP_RENEW);
4415 decode_restorefh(struct xdr_stream *xdr)
4417 return decode_op_hdr(xdr, OP_RESTOREFH);
4420 static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
4426 struct kvec *iov = req->rq_rcv_buf.head;
4430 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4432 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4434 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4437 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
4439 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
4443 /* We ignore &savep and don't do consistency checks on
4444 * the attr length. Let userspace figure it out.... */
4445 hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base;
4446 recvd = req->rq_rcv_buf.len - hdrlen;
4447 if (attrlen > recvd) {
4448 dprintk("NFS: server cheating in getattr"
4449 " acl reply: attrlen %u > recvd %u\n",
4453 xdr_read_pages(xdr, attrlen);
4456 status = -EOPNOTSUPP;
4463 decode_savefh(struct xdr_stream *xdr)
4465 return decode_op_hdr(xdr, OP_SAVEFH);
4468 static int decode_setattr(struct xdr_stream *xdr)
4474 status = decode_op_hdr(xdr, OP_SETATTR);
4477 p = xdr_inline_decode(xdr, 4);
4480 bmlen = be32_to_cpup(p);
4481 p = xdr_inline_decode(xdr, bmlen << 2);
4485 print_overflow_msg(__func__, xdr);
4489 static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res)
4495 p = xdr_inline_decode(xdr, 8);
4498 opnum = be32_to_cpup(p++);
4499 if (opnum != OP_SETCLIENTID) {
4500 dprintk("nfs: decode_setclientid: Server returned operation"
4504 nfserr = be32_to_cpup(p);
4505 if (nfserr == NFS_OK) {
4506 p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE);
4509 p = xdr_decode_hyper(p, &res->clientid);
4510 memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE);
4511 } else if (nfserr == NFSERR_CLID_INUSE) {
4514 /* skip netid string */
4515 p = xdr_inline_decode(xdr, 4);
4518 len = be32_to_cpup(p);
4519 p = xdr_inline_decode(xdr, len);
4523 /* skip uaddr string */
4524 p = xdr_inline_decode(xdr, 4);
4527 len = be32_to_cpup(p);
4528 p = xdr_inline_decode(xdr, len);
4531 return -NFSERR_CLID_INUSE;
4533 return nfs4_stat_to_errno(nfserr);
4537 print_overflow_msg(__func__, xdr);
4541 static int decode_setclientid_confirm(struct xdr_stream *xdr)
4543 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
4546 static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
4551 status = decode_op_hdr(xdr, OP_WRITE);
4555 p = xdr_inline_decode(xdr, 16);
4558 res->count = be32_to_cpup(p++);
4559 res->verf->committed = be32_to_cpup(p++);
4560 memcpy(res->verf->verifier, p, 8);
4563 print_overflow_msg(__func__, xdr);
4567 static int decode_delegreturn(struct xdr_stream *xdr)
4569 return decode_op_hdr(xdr, OP_DELEGRETURN);
4572 #if defined(CONFIG_NFS_V4_1)
4573 static int decode_exchange_id(struct xdr_stream *xdr,
4574 struct nfs41_exchange_id_res *res)
4580 struct nfs_client *clp = res->client;
4582 status = decode_op_hdr(xdr, OP_EXCHANGE_ID);
4586 p = xdr_inline_decode(xdr, 8);
4589 xdr_decode_hyper(p, &clp->cl_ex_clid);
4590 p = xdr_inline_decode(xdr, 12);
4593 clp->cl_seqid = be32_to_cpup(p++);
4594 clp->cl_exchange_flags = be32_to_cpup(p++);
4596 /* We ask for SP4_NONE */
4597 dummy = be32_to_cpup(p);
4598 if (dummy != SP4_NONE)
4601 /* Throw away minor_id */
4602 p = xdr_inline_decode(xdr, 8);
4606 /* Throw away Major id */
4607 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4608 if (unlikely(status))
4611 /* Throw away server_scope */
4612 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4613 if (unlikely(status))
4616 /* Throw away Implementation id array */
4617 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4618 if (unlikely(status))
4623 print_overflow_msg(__func__, xdr);
4627 static int decode_chan_attrs(struct xdr_stream *xdr,
4628 struct nfs4_channel_attrs *attrs)
4633 p = xdr_inline_decode(xdr, 28);
4636 attrs->headerpadsz = be32_to_cpup(p++);
4637 attrs->max_rqst_sz = be32_to_cpup(p++);
4638 attrs->max_resp_sz = be32_to_cpup(p++);
4639 attrs->max_resp_sz_cached = be32_to_cpup(p++);
4640 attrs->max_ops = be32_to_cpup(p++);
4641 attrs->max_reqs = be32_to_cpup(p++);
4642 nr_attrs = be32_to_cpup(p);
4643 if (unlikely(nr_attrs > 1)) {
4644 printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n",
4645 __func__, nr_attrs);
4648 if (nr_attrs == 1) {
4649 p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */
4655 print_overflow_msg(__func__, xdr);
4659 static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid)
4661 return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN);
4664 static int decode_create_session(struct xdr_stream *xdr,
4665 struct nfs41_create_session_res *res)
4669 struct nfs_client *clp = res->client;
4670 struct nfs4_session *session = clp->cl_session;
4672 status = decode_op_hdr(xdr, OP_CREATE_SESSION);
4674 status = decode_sessionid(xdr, &session->sess_id);
4675 if (unlikely(status))
4679 p = xdr_inline_decode(xdr, 8);
4682 clp->cl_seqid = be32_to_cpup(p++);
4683 session->flags = be32_to_cpup(p);
4685 /* Channel attributes */
4686 status = decode_chan_attrs(xdr, &session->fc_attrs);
4688 status = decode_chan_attrs(xdr, &session->bc_attrs);
4691 print_overflow_msg(__func__, xdr);
4695 static int decode_destroy_session(struct xdr_stream *xdr, void *dummy)
4697 return decode_op_hdr(xdr, OP_DESTROY_SESSION);
4700 static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy)
4702 return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE);
4704 #endif /* CONFIG_NFS_V4_1 */
4706 static int decode_sequence(struct xdr_stream *xdr,
4707 struct nfs4_sequence_res *res,
4708 struct rpc_rqst *rqstp)
4710 #if defined(CONFIG_NFS_V4_1)
4711 struct nfs4_sessionid id;
4716 if (!res->sr_session)
4719 status = decode_op_hdr(xdr, OP_SEQUENCE);
4721 status = decode_sessionid(xdr, &id);
4722 if (unlikely(status))
4726 * If the server returns different values for sessionID, slotID or
4727 * sequence number, the server is looney tunes.
4729 status = -EREMOTEIO;
4731 if (memcmp(id.data, res->sr_session->sess_id.data,
4732 NFS4_MAX_SESSIONID_LEN)) {
4733 dprintk("%s Invalid session id\n", __func__);
4737 p = xdr_inline_decode(xdr, 20);
4742 dummy = be32_to_cpup(p++);
4743 if (dummy != res->sr_slot->seq_nr) {
4744 dprintk("%s Invalid sequence number\n", __func__);
4748 dummy = be32_to_cpup(p++);
4749 if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) {
4750 dprintk("%s Invalid slot id\n", __func__);
4753 /* highest slot id - currently not processed */
4754 dummy = be32_to_cpup(p++);
4755 /* target highest slot id - currently not processed */
4756 dummy = be32_to_cpup(p++);
4758 res->sr_status_flags = be32_to_cpup(p);
4761 res->sr_status = status;
4764 print_overflow_msg(__func__, xdr);
4767 #else /* CONFIG_NFS_V4_1 */
4769 #endif /* CONFIG_NFS_V4_1 */
4773 * END OF "GENERIC" DECODE ROUTINES.
4777 * Decode OPEN_DOWNGRADE response
4779 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res)
4781 struct xdr_stream xdr;
4782 struct compound_hdr hdr;
4785 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4786 status = decode_compound_hdr(&xdr, &hdr);
4789 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4792 status = decode_putfh(&xdr);
4795 status = decode_open_downgrade(&xdr, res);
4798 decode_getfattr(&xdr, res->fattr, res->server,
4799 !RPC_IS_ASYNC(rqstp->rq_task));
4805 * Decode ACCESS response
4807 static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res)
4809 struct xdr_stream xdr;
4810 struct compound_hdr hdr;
4813 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4814 status = decode_compound_hdr(&xdr, &hdr);
4817 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4820 status = decode_putfh(&xdr);
4823 status = decode_access(&xdr, res);
4826 decode_getfattr(&xdr, res->fattr, res->server,
4827 !RPC_IS_ASYNC(rqstp->rq_task));
4833 * Decode LOOKUP response
4835 static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res)
4837 struct xdr_stream xdr;
4838 struct compound_hdr hdr;
4841 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4842 status = decode_compound_hdr(&xdr, &hdr);
4845 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4848 if ((status = decode_putfh(&xdr)) != 0)
4850 if ((status = decode_lookup(&xdr)) != 0)
4852 if ((status = decode_getfh(&xdr, res->fh)) != 0)
4854 status = decode_getfattr(&xdr, res->fattr, res->server
4855 ,!RPC_IS_ASYNC(rqstp->rq_task));
4861 * Decode LOOKUP_ROOT response
4863 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res)
4865 struct xdr_stream xdr;
4866 struct compound_hdr hdr;
4869 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4870 status = decode_compound_hdr(&xdr, &hdr);
4873 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4876 if ((status = decode_putrootfh(&xdr)) != 0)
4878 if ((status = decode_getfh(&xdr, res->fh)) == 0)
4879 status = decode_getfattr(&xdr, res->fattr, res->server,
4880 !RPC_IS_ASYNC(rqstp->rq_task));
4886 * Decode REMOVE response
4888 static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res)
4890 struct xdr_stream xdr;
4891 struct compound_hdr hdr;
4894 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4895 status = decode_compound_hdr(&xdr, &hdr);
4898 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4901 if ((status = decode_putfh(&xdr)) != 0)
4903 if ((status = decode_remove(&xdr, &res->cinfo)) != 0)
4905 decode_getfattr(&xdr, res->dir_attr, res->server,
4906 !RPC_IS_ASYNC(rqstp->rq_task));
4912 * Decode RENAME response
4914 static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs_renameres *res)
4916 struct xdr_stream xdr;
4917 struct compound_hdr hdr;
4920 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4921 status = decode_compound_hdr(&xdr, &hdr);
4924 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4927 if ((status = decode_putfh(&xdr)) != 0)
4929 if ((status = decode_savefh(&xdr)) != 0)
4931 if ((status = decode_putfh(&xdr)) != 0)
4933 if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0)
4935 /* Current FH is target directory */
4936 if (decode_getfattr(&xdr, res->new_fattr, res->server,
4937 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
4939 if ((status = decode_restorefh(&xdr)) != 0)
4941 decode_getfattr(&xdr, res->old_fattr, res->server,
4942 !RPC_IS_ASYNC(rqstp->rq_task));
4948 * Decode LINK response
4950 static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res)
4952 struct xdr_stream xdr;
4953 struct compound_hdr hdr;
4956 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4957 status = decode_compound_hdr(&xdr, &hdr);
4960 status = decode_sequence(&xdr, &res->seq_res, rqstp);
4963 if ((status = decode_putfh(&xdr)) != 0)
4965 if ((status = decode_savefh(&xdr)) != 0)
4967 if ((status = decode_putfh(&xdr)) != 0)
4969 if ((status = decode_link(&xdr, &res->cinfo)) != 0)
4972 * Note order: OP_LINK leaves the directory as the current
4975 if (decode_getfattr(&xdr, res->dir_attr, res->server,
4976 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
4978 if ((status = decode_restorefh(&xdr)) != 0)
4980 decode_getfattr(&xdr, res->fattr, res->server,
4981 !RPC_IS_ASYNC(rqstp->rq_task));
4987 * Decode CREATE response
4989 static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res)
4991 struct xdr_stream xdr;
4992 struct compound_hdr hdr;
4995 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
4996 status = decode_compound_hdr(&xdr, &hdr);
4999 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5002 if ((status = decode_putfh(&xdr)) != 0)
5004 if ((status = decode_savefh(&xdr)) != 0)
5006 if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0)
5008 if ((status = decode_getfh(&xdr, res->fh)) != 0)
5010 if (decode_getfattr(&xdr, res->fattr, res->server,
5011 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
5013 if ((status = decode_restorefh(&xdr)) != 0)
5015 decode_getfattr(&xdr, res->dir_fattr, res->server,
5016 !RPC_IS_ASYNC(rqstp->rq_task));
5022 * Decode SYMLINK response
5024 static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res)
5026 return nfs4_xdr_dec_create(rqstp, p, res);
5030 * Decode GETATTR response
5032 static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res)
5034 struct xdr_stream xdr;
5035 struct compound_hdr hdr;
5038 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5039 status = decode_compound_hdr(&xdr, &hdr);
5042 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5045 status = decode_putfh(&xdr);
5048 status = decode_getfattr(&xdr, res->fattr, res->server,
5049 !RPC_IS_ASYNC(rqstp->rq_task));
5055 * Encode an SETACL request
5058 nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args)
5060 struct xdr_stream xdr;
5061 struct compound_hdr hdr = {
5062 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
5066 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
5067 encode_compound_hdr(&xdr, req, &hdr);
5068 encode_sequence(&xdr, &args->seq_args, &hdr);
5069 encode_putfh(&xdr, args->fh, &hdr);
5070 status = encode_setacl(&xdr, args, &hdr);
5076 * Decode SETACL response
5079 nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p,
5080 struct nfs_setaclres *res)
5082 struct xdr_stream xdr;
5083 struct compound_hdr hdr;
5086 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5087 status = decode_compound_hdr(&xdr, &hdr);
5090 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5093 status = decode_putfh(&xdr);
5096 status = decode_setattr(&xdr);
5102 * Decode GETACL response
5105 nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p,
5106 struct nfs_getaclres *res)
5108 struct xdr_stream xdr;
5109 struct compound_hdr hdr;
5112 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5113 status = decode_compound_hdr(&xdr, &hdr);
5116 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5119 status = decode_putfh(&xdr);
5122 status = decode_getacl(&xdr, rqstp, &res->acl_len);
5129 * Decode CLOSE response
5131 static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res)
5133 struct xdr_stream xdr;
5134 struct compound_hdr hdr;
5137 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5138 status = decode_compound_hdr(&xdr, &hdr);
5141 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5144 status = decode_putfh(&xdr);
5147 status = decode_close(&xdr, res);
5151 * Note: Server may do delete on close for this file
5152 * in which case the getattr call will fail with
5153 * an ESTALE error. Shouldn't be a problem,
5154 * though, since fattr->valid will remain unset.
5156 decode_getfattr(&xdr, res->fattr, res->server,
5157 !RPC_IS_ASYNC(rqstp->rq_task));
5163 * Decode OPEN response
5165 static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res)
5167 struct xdr_stream xdr;
5168 struct compound_hdr hdr;
5171 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5172 status = decode_compound_hdr(&xdr, &hdr);
5175 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5178 status = decode_putfh(&xdr);
5181 status = decode_savefh(&xdr);
5184 status = decode_open(&xdr, res);
5187 if (decode_getfh(&xdr, &res->fh) != 0)
5189 if (decode_getfattr(&xdr, res->f_attr, res->server,
5190 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
5192 if (decode_restorefh(&xdr) != 0)
5194 decode_getfattr(&xdr, res->dir_attr, res->server,
5195 !RPC_IS_ASYNC(rqstp->rq_task));
5201 * Decode OPEN_CONFIRM response
5203 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res)
5205 struct xdr_stream xdr;
5206 struct compound_hdr hdr;
5209 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5210 status = decode_compound_hdr(&xdr, &hdr);
5213 status = decode_putfh(&xdr);
5216 status = decode_open_confirm(&xdr, res);
5222 * Decode OPEN response
5224 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res)
5226 struct xdr_stream xdr;
5227 struct compound_hdr hdr;
5230 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5231 status = decode_compound_hdr(&xdr, &hdr);
5234 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5237 status = decode_putfh(&xdr);
5240 status = decode_open(&xdr, res);
5243 decode_getfattr(&xdr, res->f_attr, res->server,
5244 !RPC_IS_ASYNC(rqstp->rq_task));
5250 * Decode SETATTR response
5252 static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res)
5254 struct xdr_stream xdr;
5255 struct compound_hdr hdr;
5258 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5259 status = decode_compound_hdr(&xdr, &hdr);
5262 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5265 status = decode_putfh(&xdr);
5268 status = decode_setattr(&xdr);
5271 decode_getfattr(&xdr, res->fattr, res->server,
5272 !RPC_IS_ASYNC(rqstp->rq_task));
5278 * Decode LOCK response
5280 static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res)
5282 struct xdr_stream xdr;
5283 struct compound_hdr hdr;
5286 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5287 status = decode_compound_hdr(&xdr, &hdr);
5290 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5293 status = decode_putfh(&xdr);
5296 status = decode_lock(&xdr, res);
5302 * Decode LOCKT response
5304 static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res)
5306 struct xdr_stream xdr;
5307 struct compound_hdr hdr;
5310 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5311 status = decode_compound_hdr(&xdr, &hdr);
5314 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5317 status = decode_putfh(&xdr);
5320 status = decode_lockt(&xdr, res);
5326 * Decode LOCKU response
5328 static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res)
5330 struct xdr_stream xdr;
5331 struct compound_hdr hdr;
5334 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5335 status = decode_compound_hdr(&xdr, &hdr);
5338 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5341 status = decode_putfh(&xdr);
5344 status = decode_locku(&xdr, res);
5349 static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, __be32 *p, void *dummy)
5351 struct xdr_stream xdr;
5352 struct compound_hdr hdr;
5355 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5356 status = decode_compound_hdr(&xdr, &hdr);
5358 status = decode_release_lockowner(&xdr);
5363 * Decode READLINK response
5365 static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p,
5366 struct nfs4_readlink_res *res)
5368 struct xdr_stream xdr;
5369 struct compound_hdr hdr;
5372 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5373 status = decode_compound_hdr(&xdr, &hdr);
5376 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5379 status = decode_putfh(&xdr);
5382 status = decode_readlink(&xdr, rqstp);
5388 * Decode READDIR response
5390 static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res)
5392 struct xdr_stream xdr;
5393 struct compound_hdr hdr;
5396 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5397 status = decode_compound_hdr(&xdr, &hdr);
5400 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5403 status = decode_putfh(&xdr);
5406 status = decode_readdir(&xdr, rqstp, res);
5412 * Decode Read response
5414 static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res)
5416 struct xdr_stream xdr;
5417 struct compound_hdr hdr;
5420 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5421 status = decode_compound_hdr(&xdr, &hdr);
5424 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5427 status = decode_putfh(&xdr);
5430 status = decode_read(&xdr, rqstp, res);
5432 status = res->count;
5438 * Decode WRITE response
5440 static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res)
5442 struct xdr_stream xdr;
5443 struct compound_hdr hdr;
5446 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5447 status = decode_compound_hdr(&xdr, &hdr);
5450 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5453 status = decode_putfh(&xdr);
5456 status = decode_write(&xdr, res);
5459 decode_getfattr(&xdr, res->fattr, res->server,
5460 !RPC_IS_ASYNC(rqstp->rq_task));
5462 status = res->count;
5468 * Decode COMMIT response
5470 static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res)
5472 struct xdr_stream xdr;
5473 struct compound_hdr hdr;
5476 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5477 status = decode_compound_hdr(&xdr, &hdr);
5480 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5483 status = decode_putfh(&xdr);
5486 status = decode_commit(&xdr, res);
5489 decode_getfattr(&xdr, res->fattr, res->server,
5490 !RPC_IS_ASYNC(rqstp->rq_task));
5496 * Decode FSINFO response
5498 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p,
5499 struct nfs4_fsinfo_res *res)
5501 struct xdr_stream xdr;
5502 struct compound_hdr hdr;
5505 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5506 status = decode_compound_hdr(&xdr, &hdr);
5508 status = decode_sequence(&xdr, &res->seq_res, req);
5510 status = decode_putfh(&xdr);
5512 status = decode_fsinfo(&xdr, res->fsinfo);
5517 * Decode PATHCONF response
5519 static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p,
5520 struct nfs4_pathconf_res *res)
5522 struct xdr_stream xdr;
5523 struct compound_hdr hdr;
5526 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5527 status = decode_compound_hdr(&xdr, &hdr);
5529 status = decode_sequence(&xdr, &res->seq_res, req);
5531 status = decode_putfh(&xdr);
5533 status = decode_pathconf(&xdr, res->pathconf);
5538 * Decode STATFS response
5540 static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p,
5541 struct nfs4_statfs_res *res)
5543 struct xdr_stream xdr;
5544 struct compound_hdr hdr;
5547 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5548 status = decode_compound_hdr(&xdr, &hdr);
5550 status = decode_sequence(&xdr, &res->seq_res, req);
5552 status = decode_putfh(&xdr);
5554 status = decode_statfs(&xdr, res->fsstat);
5559 * Decode GETATTR_BITMAP response
5561 static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res)
5563 struct xdr_stream xdr;
5564 struct compound_hdr hdr;
5567 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5568 status = decode_compound_hdr(&xdr, &hdr);
5571 status = decode_sequence(&xdr, &res->seq_res, req);
5574 if ((status = decode_putfh(&xdr)) != 0)
5576 status = decode_server_caps(&xdr, res);
5582 * Decode RENEW response
5584 static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy)
5586 struct xdr_stream xdr;
5587 struct compound_hdr hdr;
5590 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5591 status = decode_compound_hdr(&xdr, &hdr);
5593 status = decode_renew(&xdr);
5598 * Decode SETCLIENTID response
5600 static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p,
5601 struct nfs4_setclientid_res *res)
5603 struct xdr_stream xdr;
5604 struct compound_hdr hdr;
5607 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5608 status = decode_compound_hdr(&xdr, &hdr);
5610 status = decode_setclientid(&xdr, res);
5615 * Decode SETCLIENTID_CONFIRM response
5617 static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo)
5619 struct xdr_stream xdr;
5620 struct compound_hdr hdr;
5623 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5624 status = decode_compound_hdr(&xdr, &hdr);
5626 status = decode_setclientid_confirm(&xdr);
5628 status = decode_putrootfh(&xdr);
5630 status = decode_fsinfo(&xdr, fsinfo);
5635 * Decode DELEGRETURN response
5637 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res)
5639 struct xdr_stream xdr;
5640 struct compound_hdr hdr;
5643 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5644 status = decode_compound_hdr(&xdr, &hdr);
5647 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5650 status = decode_putfh(&xdr);
5653 status = decode_delegreturn(&xdr);
5656 decode_getfattr(&xdr, res->fattr, res->server,
5657 !RPC_IS_ASYNC(rqstp->rq_task));
5663 * Decode FS_LOCATIONS response
5665 static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p,
5666 struct nfs4_fs_locations_res *res)
5668 struct xdr_stream xdr;
5669 struct compound_hdr hdr;
5672 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5673 status = decode_compound_hdr(&xdr, &hdr);
5676 status = decode_sequence(&xdr, &res->seq_res, req);
5679 if ((status = decode_putfh(&xdr)) != 0)
5681 if ((status = decode_lookup(&xdr)) != 0)
5683 xdr_enter_page(&xdr, PAGE_SIZE);
5684 status = decode_getfattr(&xdr, &res->fs_locations->fattr,
5685 res->fs_locations->server,
5686 !RPC_IS_ASYNC(req->rq_task));
5691 #if defined(CONFIG_NFS_V4_1)
5693 * Decode EXCHANGE_ID response
5695 static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p,
5698 struct xdr_stream xdr;
5699 struct compound_hdr hdr;
5702 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5703 status = decode_compound_hdr(&xdr, &hdr);
5705 status = decode_exchange_id(&xdr, res);
5710 * Decode CREATE_SESSION response
5712 static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p,
5713 struct nfs41_create_session_res *res)
5715 struct xdr_stream xdr;
5716 struct compound_hdr hdr;
5719 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5720 status = decode_compound_hdr(&xdr, &hdr);
5722 status = decode_create_session(&xdr, res);
5727 * Decode DESTROY_SESSION response
5729 static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p,
5732 struct xdr_stream xdr;
5733 struct compound_hdr hdr;
5736 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5737 status = decode_compound_hdr(&xdr, &hdr);
5739 status = decode_destroy_session(&xdr, dummy);
5744 * Decode SEQUENCE response
5746 static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p,
5747 struct nfs4_sequence_res *res)
5749 struct xdr_stream xdr;
5750 struct compound_hdr hdr;
5753 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5754 status = decode_compound_hdr(&xdr, &hdr);
5756 status = decode_sequence(&xdr, res, rqstp);
5761 * Decode GET_LEASE_TIME response
5763 static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p,
5764 struct nfs4_get_lease_time_res *res)
5766 struct xdr_stream xdr;
5767 struct compound_hdr hdr;
5770 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5771 status = decode_compound_hdr(&xdr, &hdr);
5773 status = decode_sequence(&xdr, &res->lr_seq_res, rqstp);
5775 status = decode_putrootfh(&xdr);
5777 status = decode_fsinfo(&xdr, res->lr_fsinfo);
5782 * Decode RECLAIM_COMPLETE response
5784 static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, uint32_t *p,
5785 struct nfs41_reclaim_complete_res *res)
5787 struct xdr_stream xdr;
5788 struct compound_hdr hdr;
5791 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5792 status = decode_compound_hdr(&xdr, &hdr);
5794 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5796 status = decode_reclaim_complete(&xdr, (void *)NULL);
5799 #endif /* CONFIG_NFS_V4_1 */
5801 __be32 *nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
5802 struct nfs_server *server, int plus)
5804 uint32_t bitmap[2] = {0};
5806 __be32 *p = xdr_inline_decode(xdr, 4);
5810 p = xdr_inline_decode(xdr, 4);
5814 return ERR_PTR(-EAGAIN);
5816 return ERR_PTR(-EBADCOOKIE);
5819 p = xdr_inline_decode(xdr, 12);
5822 entry->prev_cookie = entry->cookie;
5823 p = xdr_decode_hyper(p, &entry->cookie);
5824 entry->len = ntohl(*p++);
5826 p = xdr_inline_decode(xdr, entry->len);
5829 entry->name = (const char *) p;
5832 * In case the server doesn't return an inode number,
5833 * we fake one here. (We don't use inode number 0,
5834 * since glibc seems to choke on it...)
5837 entry->fattr->valid = 0;
5839 if (decode_attr_bitmap(xdr, bitmap) < 0)
5842 if (decode_attr_length(xdr, &len, &p) < 0)
5845 if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, server, 1) < 0)
5847 if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID)
5848 entry->ino = entry->fattr->fileid;
5850 if (verify_attr_len(xdr, p, len) < 0)
5853 p = xdr_inline_peek(xdr, 8);
5855 entry->eof = !p[0] && p[1];
5862 print_overflow_msg(__func__, xdr);
5863 return ERR_PTR(-EIO);
5867 * We need to translate between nfs status return values and
5868 * the local errno values which may not be the same.
5875 { NFS4ERR_PERM, -EPERM },
5876 { NFS4ERR_NOENT, -ENOENT },
5877 { NFS4ERR_IO, -errno_NFSERR_IO},
5878 { NFS4ERR_NXIO, -ENXIO },
5879 { NFS4ERR_ACCESS, -EACCES },
5880 { NFS4ERR_EXIST, -EEXIST },
5881 { NFS4ERR_XDEV, -EXDEV },
5882 { NFS4ERR_NOTDIR, -ENOTDIR },
5883 { NFS4ERR_ISDIR, -EISDIR },
5884 { NFS4ERR_INVAL, -EINVAL },
5885 { NFS4ERR_FBIG, -EFBIG },
5886 { NFS4ERR_NOSPC, -ENOSPC },
5887 { NFS4ERR_ROFS, -EROFS },
5888 { NFS4ERR_MLINK, -EMLINK },
5889 { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG },
5890 { NFS4ERR_NOTEMPTY, -ENOTEMPTY },
5891 { NFS4ERR_DQUOT, -EDQUOT },
5892 { NFS4ERR_STALE, -ESTALE },
5893 { NFS4ERR_BADHANDLE, -EBADHANDLE },
5894 { NFS4ERR_BADOWNER, -EINVAL },
5895 { NFS4ERR_BADNAME, -EINVAL },
5896 { NFS4ERR_BAD_COOKIE, -EBADCOOKIE },
5897 { NFS4ERR_NOTSUPP, -ENOTSUPP },
5898 { NFS4ERR_TOOSMALL, -ETOOSMALL },
5899 { NFS4ERR_SERVERFAULT, -EREMOTEIO },
5900 { NFS4ERR_BADTYPE, -EBADTYPE },
5901 { NFS4ERR_LOCKED, -EAGAIN },
5902 { NFS4ERR_SYMLINK, -ELOOP },
5903 { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP },
5904 { NFS4ERR_DEADLOCK, -EDEADLK },
5905 { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs
5906 * to be handled by a
5913 * Convert an NFS error code to a local one.
5914 * This one is used jointly by NFSv2 and NFSv3.
5917 nfs4_stat_to_errno(int stat)
5920 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
5921 if (nfs_errtbl[i].stat == stat)
5922 return nfs_errtbl[i].errno;
5924 if (stat <= 10000 || stat > 10100) {
5925 /* The server is looney tunes. */
5928 /* If we cannot translate the error, the recovery routines should
5930 * Note: remaining NFSv4 error codes have values > 10000, so should
5931 * not conflict with native Linux error codes.
5936 #define PROC(proc, argtype, restype) \
5937 [NFSPROC4_CLNT_##proc] = { \
5938 .p_proc = NFSPROC4_COMPOUND, \
5939 .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \
5940 .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \
5941 .p_arglen = NFS4_##argtype##_sz, \
5942 .p_replen = NFS4_##restype##_sz, \
5943 .p_statidx = NFSPROC4_CLNT_##proc, \
5947 struct rpc_procinfo nfs4_procedures[] = {
5948 PROC(READ, enc_read, dec_read),
5949 PROC(WRITE, enc_write, dec_write),
5950 PROC(COMMIT, enc_commit, dec_commit),
5951 PROC(OPEN, enc_open, dec_open),
5952 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
5953 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
5954 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
5955 PROC(CLOSE, enc_close, dec_close),
5956 PROC(SETATTR, enc_setattr, dec_setattr),
5957 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
5958 PROC(RENEW, enc_renew, dec_renew),
5959 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
5960 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
5961 PROC(LOCK, enc_lock, dec_lock),
5962 PROC(LOCKT, enc_lockt, dec_lockt),
5963 PROC(LOCKU, enc_locku, dec_locku),
5964 PROC(ACCESS, enc_access, dec_access),
5965 PROC(GETATTR, enc_getattr, dec_getattr),
5966 PROC(LOOKUP, enc_lookup, dec_lookup),
5967 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
5968 PROC(REMOVE, enc_remove, dec_remove),
5969 PROC(RENAME, enc_rename, dec_rename),
5970 PROC(LINK, enc_link, dec_link),
5971 PROC(SYMLINK, enc_symlink, dec_symlink),
5972 PROC(CREATE, enc_create, dec_create),
5973 PROC(PATHCONF, enc_pathconf, dec_pathconf),
5974 PROC(STATFS, enc_statfs, dec_statfs),
5975 PROC(READLINK, enc_readlink, dec_readlink),
5976 PROC(READDIR, enc_readdir, dec_readdir),
5977 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
5978 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
5979 PROC(GETACL, enc_getacl, dec_getacl),
5980 PROC(SETACL, enc_setacl, dec_setacl),
5981 PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
5982 PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner),
5983 #if defined(CONFIG_NFS_V4_1)
5984 PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
5985 PROC(CREATE_SESSION, enc_create_session, dec_create_session),
5986 PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session),
5987 PROC(SEQUENCE, enc_sequence, dec_sequence),
5988 PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time),
5989 PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete),
5990 #endif /* CONFIG_NFS_V4_1 */
5993 struct rpc_version nfs_version4 = {
5995 .nrprocs = ARRAY_SIZE(nfs4_procedures),
5996 .procs = nfs4_procedures