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>
57 #define NFSDBG_FACILITY NFSDBG_XDR
59 /* Mapping from NFS error code to "errno" error code. */
60 #define errno_NFSERR_IO EIO
62 static int nfs4_stat_to_errno(int);
64 /* NFSv4 COMPOUND tags are only wanted for debugging purposes */
66 #define NFS4_MAXTAGLEN 20
68 #define NFS4_MAXTAGLEN 0
71 /* lock,open owner id:
72 * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
74 #define open_owner_id_maxsz (1 + 4)
75 #define lock_owner_id_maxsz (1 + 4)
76 #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
77 #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
78 #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
79 #define op_encode_hdr_maxsz (1)
80 #define op_decode_hdr_maxsz (2)
81 #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
82 #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
83 #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
84 #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
85 #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
87 #define decode_putfh_maxsz (op_decode_hdr_maxsz)
88 #define encode_putrootfh_maxsz (op_encode_hdr_maxsz)
89 #define decode_putrootfh_maxsz (op_decode_hdr_maxsz)
90 #define encode_getfh_maxsz (op_encode_hdr_maxsz)
91 #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
92 ((3+NFS4_FHSIZE) >> 2))
93 #define nfs4_fattr_bitmap_maxsz 3
94 #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
95 #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
96 #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
97 #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
98 #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
99 /* This is based on getfattr, which uses the most attributes: */
100 #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
101 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz))
102 #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
103 nfs4_fattr_value_maxsz)
104 #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
105 #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
110 #define encode_savefh_maxsz (op_encode_hdr_maxsz)
111 #define decode_savefh_maxsz (op_decode_hdr_maxsz)
112 #define encode_restorefh_maxsz (op_encode_hdr_maxsz)
113 #define decode_restorefh_maxsz (op_decode_hdr_maxsz)
114 #define encode_fsinfo_maxsz (encode_getattr_maxsz)
115 #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11)
116 #define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
117 #define decode_renew_maxsz (op_decode_hdr_maxsz)
118 #define encode_setclientid_maxsz \
119 (op_encode_hdr_maxsz + \
120 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
121 XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \
123 XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
124 XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
126 #define decode_setclientid_maxsz \
127 (op_decode_hdr_maxsz + \
129 1024) /* large value for CLID_INUSE */
130 #define encode_setclientid_confirm_maxsz \
131 (op_encode_hdr_maxsz + \
132 3 + (NFS4_VERIFIER_SIZE >> 2))
133 #define decode_setclientid_confirm_maxsz \
134 (op_decode_hdr_maxsz)
135 #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
136 #define decode_lookup_maxsz (op_decode_hdr_maxsz)
137 #define encode_share_access_maxsz \
139 #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
140 #define encode_opentype_maxsz (1 + encode_createmode_maxsz)
141 #define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
142 #define encode_open_maxsz (op_encode_hdr_maxsz + \
143 2 + encode_share_access_maxsz + 2 + \
144 open_owner_id_maxsz + \
145 encode_opentype_maxsz + \
146 encode_claim_null_maxsz)
147 #define decode_ace_maxsz (3 + nfs4_owner_maxsz)
148 #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
150 #define decode_change_info_maxsz (5)
151 #define decode_open_maxsz (op_decode_hdr_maxsz + \
152 decode_stateid_maxsz + \
153 decode_change_info_maxsz + 1 + \
154 nfs4_fattr_bitmap_maxsz + \
155 decode_delegation_maxsz)
156 #define encode_open_confirm_maxsz \
157 (op_encode_hdr_maxsz + \
158 encode_stateid_maxsz + 1)
159 #define decode_open_confirm_maxsz \
160 (op_decode_hdr_maxsz + \
161 decode_stateid_maxsz)
162 #define encode_open_downgrade_maxsz \
163 (op_encode_hdr_maxsz + \
164 encode_stateid_maxsz + 1 + \
165 encode_share_access_maxsz)
166 #define decode_open_downgrade_maxsz \
167 (op_decode_hdr_maxsz + \
168 decode_stateid_maxsz)
169 #define encode_close_maxsz (op_encode_hdr_maxsz + \
170 1 + encode_stateid_maxsz)
171 #define decode_close_maxsz (op_decode_hdr_maxsz + \
172 decode_stateid_maxsz)
173 #define encode_setattr_maxsz (op_encode_hdr_maxsz + \
174 encode_stateid_maxsz + \
176 #define decode_setattr_maxsz (op_decode_hdr_maxsz + \
177 nfs4_fattr_bitmap_maxsz)
178 #define encode_read_maxsz (op_encode_hdr_maxsz + \
179 encode_stateid_maxsz + 3)
180 #define decode_read_maxsz (op_decode_hdr_maxsz + 2)
181 #define encode_readdir_maxsz (op_encode_hdr_maxsz + \
182 2 + encode_verifier_maxsz + 5)
183 #define decode_readdir_maxsz (op_decode_hdr_maxsz + \
184 decode_verifier_maxsz)
185 #define encode_readlink_maxsz (op_encode_hdr_maxsz)
186 #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1)
187 #define encode_write_maxsz (op_encode_hdr_maxsz + \
188 encode_stateid_maxsz + 4)
189 #define decode_write_maxsz (op_decode_hdr_maxsz + \
190 2 + decode_verifier_maxsz)
191 #define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
192 #define decode_commit_maxsz (op_decode_hdr_maxsz + \
193 decode_verifier_maxsz)
194 #define encode_remove_maxsz (op_encode_hdr_maxsz + \
196 #define decode_remove_maxsz (op_decode_hdr_maxsz + \
197 decode_change_info_maxsz)
198 #define encode_rename_maxsz (op_encode_hdr_maxsz + \
200 #define decode_rename_maxsz (op_decode_hdr_maxsz + \
201 decode_change_info_maxsz + \
202 decode_change_info_maxsz)
203 #define encode_link_maxsz (op_encode_hdr_maxsz + \
205 #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
206 #define encode_lockowner_maxsz (7)
207 #define encode_lock_maxsz (op_encode_hdr_maxsz + \
209 1 + encode_stateid_maxsz + 1 + \
210 encode_lockowner_maxsz)
211 #define decode_lock_denied_maxsz \
212 (8 + decode_lockowner_maxsz)
213 #define decode_lock_maxsz (op_decode_hdr_maxsz + \
214 decode_lock_denied_maxsz)
215 #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
216 encode_lockowner_maxsz)
217 #define decode_lockt_maxsz (op_decode_hdr_maxsz + \
218 decode_lock_denied_maxsz)
219 #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
220 encode_stateid_maxsz + \
222 #define decode_locku_maxsz (op_decode_hdr_maxsz + \
223 decode_stateid_maxsz)
224 #define encode_release_lockowner_maxsz \
225 (op_encode_hdr_maxsz + \
226 encode_lockowner_maxsz)
227 #define decode_release_lockowner_maxsz \
228 (op_decode_hdr_maxsz)
229 #define encode_access_maxsz (op_encode_hdr_maxsz + 1)
230 #define decode_access_maxsz (op_decode_hdr_maxsz + 2)
231 #define encode_symlink_maxsz (op_encode_hdr_maxsz + \
232 1 + nfs4_name_maxsz + \
235 #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
236 #define encode_create_maxsz (op_encode_hdr_maxsz + \
237 1 + 2 + nfs4_name_maxsz + \
239 #define decode_create_maxsz (op_decode_hdr_maxsz + \
240 decode_change_info_maxsz + \
241 nfs4_fattr_bitmap_maxsz)
242 #define encode_statfs_maxsz (encode_getattr_maxsz)
243 #define decode_statfs_maxsz (decode_getattr_maxsz)
244 #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
245 #define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
246 #define encode_getacl_maxsz (encode_getattr_maxsz)
247 #define decode_getacl_maxsz (op_decode_hdr_maxsz + \
248 nfs4_fattr_bitmap_maxsz + 1)
249 #define encode_setacl_maxsz (op_encode_hdr_maxsz + \
250 encode_stateid_maxsz + 3)
251 #define decode_setacl_maxsz (decode_setattr_maxsz)
252 #define encode_fs_locations_maxsz \
253 (encode_getattr_maxsz)
254 #define decode_fs_locations_maxsz \
257 #if defined(CONFIG_NFS_V4_1)
258 #define NFS4_MAX_MACHINE_NAME_LEN (64)
260 #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
261 encode_verifier_maxsz + \
262 1 /* co_ownerid.len */ + \
263 XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \
266 0 /* SP4_NONE (for now) */ + \
267 1 /* zero implemetation id array */)
268 #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
269 2 /* eir_clientid */ + \
270 1 /* eir_sequenceid */ + \
271 1 /* eir_flags */ + \
273 0 /* SP4_NONE (for now) */ + \
274 2 /* eir_server_owner.so_minor_id */ + \
275 /* eir_server_owner.so_major_id<> */ \
276 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
277 /* eir_server_scope<> */ \
278 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
279 1 /* eir_server_impl_id array length */ + \
280 0 /* ignored eir_server_impl_id contents */)
281 #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
282 #define decode_channel_attrs_maxsz (6 + \
283 1 /* ca_rdma_ird.len */ + \
285 #define encode_create_session_maxsz (op_encode_hdr_maxsz + \
286 2 /* csa_clientid */ + \
287 1 /* csa_sequence */ + \
288 1 /* csa_flags */ + \
289 encode_channel_attrs_maxsz + \
290 encode_channel_attrs_maxsz + \
291 1 /* csa_cb_program */ + \
292 1 /* csa_sec_parms.len (1) */ + \
293 1 /* cb_secflavor (AUTH_SYS) */ + \
295 1 /* machinename.len */ + \
296 XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
299 1 /* gids.len (0) */)
300 #define decode_create_session_maxsz (op_decode_hdr_maxsz + \
301 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
302 1 /* csr_sequence */ + \
303 1 /* csr_flags */ + \
304 decode_channel_attrs_maxsz + \
305 decode_channel_attrs_maxsz)
306 #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
307 #define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
308 #define encode_sequence_maxsz (op_encode_hdr_maxsz + \
309 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
310 #define decode_sequence_maxsz (op_decode_hdr_maxsz + \
311 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
312 #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
313 #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
314 #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \
315 XDR_QUADLEN(NFS4_DEVICEID4_SIZE))
316 #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \
317 1 /* layout type */ + \
318 1 /* opaque devaddr4 length */ + \
319 /* devaddr4 payload is read into page */ \
320 1 /* notification bitmap length */ + \
321 1 /* notification bitmap */)
322 #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \
323 encode_stateid_maxsz)
324 #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \
325 decode_stateid_maxsz + \
326 XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE))
327 #else /* CONFIG_NFS_V4_1 */
328 #define encode_sequence_maxsz 0
329 #define decode_sequence_maxsz 0
330 #endif /* CONFIG_NFS_V4_1 */
332 #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
333 #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
334 #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
335 encode_sequence_maxsz + \
336 encode_putfh_maxsz + \
338 #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
339 decode_sequence_maxsz + \
340 decode_putfh_maxsz + \
342 #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
343 encode_sequence_maxsz + \
344 encode_putfh_maxsz + \
345 encode_readlink_maxsz)
346 #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
347 decode_sequence_maxsz + \
348 decode_putfh_maxsz + \
349 decode_readlink_maxsz)
350 #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
351 encode_sequence_maxsz + \
352 encode_putfh_maxsz + \
353 encode_readdir_maxsz)
354 #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
355 decode_sequence_maxsz + \
356 decode_putfh_maxsz + \
357 decode_readdir_maxsz)
358 #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
359 encode_sequence_maxsz + \
360 encode_putfh_maxsz + \
361 encode_write_maxsz + \
362 encode_getattr_maxsz)
363 #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
364 decode_sequence_maxsz + \
365 decode_putfh_maxsz + \
366 decode_write_maxsz + \
367 decode_getattr_maxsz)
368 #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
369 encode_sequence_maxsz + \
370 encode_putfh_maxsz + \
371 encode_commit_maxsz + \
372 encode_getattr_maxsz)
373 #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
374 decode_sequence_maxsz + \
375 decode_putfh_maxsz + \
376 decode_commit_maxsz + \
377 decode_getattr_maxsz)
378 #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
379 encode_sequence_maxsz + \
380 encode_putfh_maxsz + \
381 encode_savefh_maxsz + \
382 encode_open_maxsz + \
383 encode_getfh_maxsz + \
384 encode_getattr_maxsz + \
385 encode_restorefh_maxsz + \
386 encode_getattr_maxsz)
387 #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
388 decode_sequence_maxsz + \
389 decode_putfh_maxsz + \
390 decode_savefh_maxsz + \
391 decode_open_maxsz + \
392 decode_getfh_maxsz + \
393 decode_getattr_maxsz + \
394 decode_restorefh_maxsz + \
395 decode_getattr_maxsz)
396 #define NFS4_enc_open_confirm_sz \
397 (compound_encode_hdr_maxsz + \
398 encode_putfh_maxsz + \
399 encode_open_confirm_maxsz)
400 #define NFS4_dec_open_confirm_sz \
401 (compound_decode_hdr_maxsz + \
402 decode_putfh_maxsz + \
403 decode_open_confirm_maxsz)
404 #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
405 encode_sequence_maxsz + \
406 encode_putfh_maxsz + \
407 encode_open_maxsz + \
408 encode_getattr_maxsz)
409 #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
410 decode_sequence_maxsz + \
411 decode_putfh_maxsz + \
412 decode_open_maxsz + \
413 decode_getattr_maxsz)
414 #define NFS4_enc_open_downgrade_sz \
415 (compound_encode_hdr_maxsz + \
416 encode_sequence_maxsz + \
417 encode_putfh_maxsz + \
418 encode_open_downgrade_maxsz + \
419 encode_getattr_maxsz)
420 #define NFS4_dec_open_downgrade_sz \
421 (compound_decode_hdr_maxsz + \
422 decode_sequence_maxsz + \
423 decode_putfh_maxsz + \
424 decode_open_downgrade_maxsz + \
425 decode_getattr_maxsz)
426 #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
427 encode_sequence_maxsz + \
428 encode_putfh_maxsz + \
429 encode_close_maxsz + \
430 encode_getattr_maxsz)
431 #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
432 decode_sequence_maxsz + \
433 decode_putfh_maxsz + \
434 decode_close_maxsz + \
435 decode_getattr_maxsz)
436 #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
437 encode_sequence_maxsz + \
438 encode_putfh_maxsz + \
439 encode_setattr_maxsz + \
440 encode_getattr_maxsz)
441 #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
442 decode_sequence_maxsz + \
443 decode_putfh_maxsz + \
444 decode_setattr_maxsz + \
445 decode_getattr_maxsz)
446 #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
447 encode_sequence_maxsz + \
448 encode_putfh_maxsz + \
450 #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
451 decode_sequence_maxsz + \
452 decode_putfh_maxsz + \
454 #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
456 #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
458 #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
459 encode_setclientid_maxsz)
460 #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
461 decode_setclientid_maxsz)
462 #define NFS4_enc_setclientid_confirm_sz \
463 (compound_encode_hdr_maxsz + \
464 encode_setclientid_confirm_maxsz + \
465 encode_putrootfh_maxsz + \
467 #define NFS4_dec_setclientid_confirm_sz \
468 (compound_decode_hdr_maxsz + \
469 decode_setclientid_confirm_maxsz + \
470 decode_putrootfh_maxsz + \
472 #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
473 encode_sequence_maxsz + \
474 encode_putfh_maxsz + \
476 #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
477 decode_sequence_maxsz + \
478 decode_putfh_maxsz + \
480 #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
481 encode_sequence_maxsz + \
482 encode_putfh_maxsz + \
484 #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
485 decode_sequence_maxsz + \
486 decode_putfh_maxsz + \
488 #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
489 encode_sequence_maxsz + \
490 encode_putfh_maxsz + \
492 #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
493 decode_sequence_maxsz + \
494 decode_putfh_maxsz + \
496 #define NFS4_enc_release_lockowner_sz \
497 (compound_encode_hdr_maxsz + \
498 encode_lockowner_maxsz)
499 #define NFS4_dec_release_lockowner_sz \
500 (compound_decode_hdr_maxsz + \
501 decode_lockowner_maxsz)
502 #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
503 encode_sequence_maxsz + \
504 encode_putfh_maxsz + \
505 encode_access_maxsz + \
506 encode_getattr_maxsz)
507 #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
508 decode_sequence_maxsz + \
509 decode_putfh_maxsz + \
510 decode_access_maxsz + \
511 decode_getattr_maxsz)
512 #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
513 encode_sequence_maxsz + \
514 encode_putfh_maxsz + \
515 encode_getattr_maxsz)
516 #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
517 decode_sequence_maxsz + \
518 decode_putfh_maxsz + \
519 decode_getattr_maxsz)
520 #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
521 encode_sequence_maxsz + \
522 encode_putfh_maxsz + \
523 encode_lookup_maxsz + \
524 encode_getattr_maxsz + \
526 #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
527 decode_sequence_maxsz + \
528 decode_putfh_maxsz + \
529 decode_lookup_maxsz + \
530 decode_getattr_maxsz + \
532 #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
533 encode_sequence_maxsz + \
534 encode_putrootfh_maxsz + \
535 encode_getattr_maxsz + \
537 #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
538 decode_sequence_maxsz + \
539 decode_putrootfh_maxsz + \
540 decode_getattr_maxsz + \
542 #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
543 encode_sequence_maxsz + \
544 encode_putfh_maxsz + \
545 encode_remove_maxsz + \
546 encode_getattr_maxsz)
547 #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
548 decode_sequence_maxsz + \
549 decode_putfh_maxsz + \
550 decode_remove_maxsz + \
551 decode_getattr_maxsz)
552 #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
553 encode_sequence_maxsz + \
554 encode_putfh_maxsz + \
555 encode_savefh_maxsz + \
556 encode_putfh_maxsz + \
557 encode_rename_maxsz + \
558 encode_getattr_maxsz + \
559 encode_restorefh_maxsz + \
560 encode_getattr_maxsz)
561 #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
562 decode_sequence_maxsz + \
563 decode_putfh_maxsz + \
564 decode_savefh_maxsz + \
565 decode_putfh_maxsz + \
566 decode_rename_maxsz + \
567 decode_getattr_maxsz + \
568 decode_restorefh_maxsz + \
569 decode_getattr_maxsz)
570 #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
571 encode_sequence_maxsz + \
572 encode_putfh_maxsz + \
573 encode_savefh_maxsz + \
574 encode_putfh_maxsz + \
575 encode_link_maxsz + \
576 decode_getattr_maxsz + \
577 encode_restorefh_maxsz + \
578 decode_getattr_maxsz)
579 #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
580 decode_sequence_maxsz + \
581 decode_putfh_maxsz + \
582 decode_savefh_maxsz + \
583 decode_putfh_maxsz + \
584 decode_link_maxsz + \
585 decode_getattr_maxsz + \
586 decode_restorefh_maxsz + \
587 decode_getattr_maxsz)
588 #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
589 encode_sequence_maxsz + \
590 encode_putfh_maxsz + \
591 encode_symlink_maxsz + \
592 encode_getattr_maxsz + \
594 #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
595 decode_sequence_maxsz + \
596 decode_putfh_maxsz + \
597 decode_symlink_maxsz + \
598 decode_getattr_maxsz + \
600 #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
601 encode_sequence_maxsz + \
602 encode_putfh_maxsz + \
603 encode_savefh_maxsz + \
604 encode_create_maxsz + \
605 encode_getfh_maxsz + \
606 encode_getattr_maxsz + \
607 encode_restorefh_maxsz + \
608 encode_getattr_maxsz)
609 #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
610 decode_sequence_maxsz + \
611 decode_putfh_maxsz + \
612 decode_savefh_maxsz + \
613 decode_create_maxsz + \
614 decode_getfh_maxsz + \
615 decode_getattr_maxsz + \
616 decode_restorefh_maxsz + \
617 decode_getattr_maxsz)
618 #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
619 encode_sequence_maxsz + \
620 encode_putfh_maxsz + \
621 encode_getattr_maxsz)
622 #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
623 decode_sequence_maxsz + \
624 decode_putfh_maxsz + \
625 decode_getattr_maxsz)
626 #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
627 encode_sequence_maxsz + \
628 encode_putfh_maxsz + \
630 #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
631 decode_sequence_maxsz + \
632 decode_putfh_maxsz + \
634 #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
635 encode_sequence_maxsz + \
636 encode_putfh_maxsz + \
637 encode_getattr_maxsz)
638 #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
639 decode_sequence_maxsz + \
640 decode_putfh_maxsz + \
641 decode_getattr_maxsz)
642 #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
643 encode_sequence_maxsz + \
644 encode_putfh_maxsz + \
645 encode_delegreturn_maxsz + \
646 encode_getattr_maxsz)
647 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
648 decode_sequence_maxsz + \
649 decode_delegreturn_maxsz + \
650 decode_getattr_maxsz)
651 #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
652 encode_sequence_maxsz + \
653 encode_putfh_maxsz + \
655 #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
656 decode_sequence_maxsz + \
657 decode_putfh_maxsz + \
659 #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
660 encode_sequence_maxsz + \
661 encode_putfh_maxsz + \
663 #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
664 decode_sequence_maxsz + \
665 decode_putfh_maxsz + \
667 #define NFS4_enc_fs_locations_sz \
668 (compound_encode_hdr_maxsz + \
669 encode_sequence_maxsz + \
670 encode_putfh_maxsz + \
671 encode_lookup_maxsz + \
672 encode_fs_locations_maxsz)
673 #define NFS4_dec_fs_locations_sz \
674 (compound_decode_hdr_maxsz + \
675 decode_sequence_maxsz + \
676 decode_putfh_maxsz + \
677 decode_lookup_maxsz + \
678 decode_fs_locations_maxsz)
679 #if defined(CONFIG_NFS_V4_1)
680 #define NFS4_enc_exchange_id_sz \
681 (compound_encode_hdr_maxsz + \
682 encode_exchange_id_maxsz)
683 #define NFS4_dec_exchange_id_sz \
684 (compound_decode_hdr_maxsz + \
685 decode_exchange_id_maxsz)
686 #define NFS4_enc_create_session_sz \
687 (compound_encode_hdr_maxsz + \
688 encode_create_session_maxsz)
689 #define NFS4_dec_create_session_sz \
690 (compound_decode_hdr_maxsz + \
691 decode_create_session_maxsz)
692 #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
693 encode_destroy_session_maxsz)
694 #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
695 decode_destroy_session_maxsz)
696 #define NFS4_enc_sequence_sz \
697 (compound_decode_hdr_maxsz + \
698 encode_sequence_maxsz)
699 #define NFS4_dec_sequence_sz \
700 (compound_decode_hdr_maxsz + \
701 decode_sequence_maxsz)
702 #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
703 encode_sequence_maxsz + \
704 encode_putrootfh_maxsz + \
706 #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
707 decode_sequence_maxsz + \
708 decode_putrootfh_maxsz + \
710 #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
711 encode_sequence_maxsz + \
712 encode_reclaim_complete_maxsz)
713 #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
714 decode_sequence_maxsz + \
715 decode_reclaim_complete_maxsz)
716 #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \
717 encode_sequence_maxsz +\
718 encode_getdeviceinfo_maxsz)
719 #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \
720 decode_sequence_maxsz + \
721 decode_getdeviceinfo_maxsz)
722 #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \
723 encode_sequence_maxsz + \
724 encode_putfh_maxsz + \
725 encode_layoutget_maxsz)
726 #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \
727 decode_sequence_maxsz + \
728 decode_putfh_maxsz + \
729 decode_layoutget_maxsz)
731 const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
732 compound_encode_hdr_maxsz +
733 encode_sequence_maxsz +
735 encode_getattr_maxsz) *
738 const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
739 compound_decode_hdr_maxsz +
740 decode_sequence_maxsz +
741 decode_putfh_maxsz) *
743 #endif /* CONFIG_NFS_V4_1 */
745 static const umode_t nfs_type2fmt[] = {
752 [NF4SOCK] = S_IFSOCK,
758 struct compound_hdr {
764 uint32_t replen; /* expected reply words */
768 static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes)
770 __be32 *p = xdr_reserve_space(xdr, nbytes);
775 static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
779 p = xdr_reserve_space(xdr, 4 + len);
781 xdr_encode_opaque(p, str, len);
784 static void encode_compound_hdr(struct xdr_stream *xdr,
785 struct rpc_rqst *req,
786 struct compound_hdr *hdr)
789 struct rpc_auth *auth = req->rq_cred->cr_auth;
791 /* initialize running count of expected bytes in reply.
792 * NOTE: the replied tag SHOULD be the same is the one sent,
793 * but this is not required as a MUST for the server to do so. */
794 hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen;
796 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag);
797 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN);
798 p = reserve_space(xdr, 4 + hdr->taglen + 8);
799 p = xdr_encode_opaque(p, hdr->tag, hdr->taglen);
800 *p++ = cpu_to_be32(hdr->minorversion);
802 *p = cpu_to_be32(hdr->nops);
805 static void encode_nops(struct compound_hdr *hdr)
807 BUG_ON(hdr->nops > NFS4_MAX_OPS);
808 *hdr->nops_p = htonl(hdr->nops);
811 static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
815 p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE);
817 xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE);
820 static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
822 char owner_name[IDMAP_NAMESZ];
823 char owner_group[IDMAP_NAMESZ];
824 int owner_namelen = 0;
825 int owner_grouplen = 0;
833 * We reserve enough space to write the entire attribute buffer at once.
834 * In the worst-case, this would be
835 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
836 * = 36 bytes, plus any contribution from variable-length fields
837 * such as owner/group.
842 if (iap->ia_valid & ATTR_SIZE)
844 if (iap->ia_valid & ATTR_MODE)
846 if (iap->ia_valid & ATTR_UID) {
847 owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name, IDMAP_NAMESZ);
848 if (owner_namelen < 0) {
849 dprintk("nfs: couldn't resolve uid %d to string\n",
852 strcpy(owner_name, "nobody");
853 owner_namelen = sizeof("nobody") - 1;
856 len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
858 if (iap->ia_valid & ATTR_GID) {
859 owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group, IDMAP_NAMESZ);
860 if (owner_grouplen < 0) {
861 dprintk("nfs: couldn't resolve gid %d to string\n",
863 strcpy(owner_group, "nobody");
864 owner_grouplen = sizeof("nobody") - 1;
867 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
869 if (iap->ia_valid & ATTR_ATIME_SET)
871 else if (iap->ia_valid & ATTR_ATIME)
873 if (iap->ia_valid & ATTR_MTIME_SET)
875 else if (iap->ia_valid & ATTR_MTIME)
877 p = reserve_space(xdr, len);
880 * We write the bitmap length now, but leave the bitmap and the attribute
881 * buffer length to be backfilled at the end of this routine.
883 *p++ = cpu_to_be32(2);
887 if (iap->ia_valid & ATTR_SIZE) {
888 bmval0 |= FATTR4_WORD0_SIZE;
889 p = xdr_encode_hyper(p, iap->ia_size);
891 if (iap->ia_valid & ATTR_MODE) {
892 bmval1 |= FATTR4_WORD1_MODE;
893 *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
895 if (iap->ia_valid & ATTR_UID) {
896 bmval1 |= FATTR4_WORD1_OWNER;
897 p = xdr_encode_opaque(p, owner_name, owner_namelen);
899 if (iap->ia_valid & ATTR_GID) {
900 bmval1 |= FATTR4_WORD1_OWNER_GROUP;
901 p = xdr_encode_opaque(p, owner_group, owner_grouplen);
903 if (iap->ia_valid & ATTR_ATIME_SET) {
904 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
905 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
906 *p++ = cpu_to_be32(0);
907 *p++ = cpu_to_be32(iap->ia_atime.tv_sec);
908 *p++ = cpu_to_be32(iap->ia_atime.tv_nsec);
910 else if (iap->ia_valid & ATTR_ATIME) {
911 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
912 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
914 if (iap->ia_valid & ATTR_MTIME_SET) {
915 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
916 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
917 *p++ = cpu_to_be32(0);
918 *p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
919 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
921 else if (iap->ia_valid & ATTR_MTIME) {
922 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
923 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
927 * Now we backfill the bitmap and the attribute buffer length.
929 if (len != ((char *)p - (char *)q) + 4) {
930 printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n",
931 len, ((char *)p - (char *)q) + 4);
934 len = (char *)p - (char *)q - 12;
935 *q++ = htonl(bmval0);
936 *q++ = htonl(bmval1);
942 static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr)
946 p = reserve_space(xdr, 8);
947 *p++ = cpu_to_be32(OP_ACCESS);
948 *p = cpu_to_be32(access);
950 hdr->replen += decode_access_maxsz;
953 static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
957 p = reserve_space(xdr, 8+NFS4_STATEID_SIZE);
958 *p++ = cpu_to_be32(OP_CLOSE);
959 *p++ = cpu_to_be32(arg->seqid->sequence->counter);
960 xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
962 hdr->replen += decode_close_maxsz;
965 static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
969 p = reserve_space(xdr, 16);
970 *p++ = cpu_to_be32(OP_COMMIT);
971 p = xdr_encode_hyper(p, args->offset);
972 *p = cpu_to_be32(args->count);
974 hdr->replen += decode_commit_maxsz;
977 static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr)
981 p = reserve_space(xdr, 8);
982 *p++ = cpu_to_be32(OP_CREATE);
983 *p = cpu_to_be32(create->ftype);
985 switch (create->ftype) {
987 p = reserve_space(xdr, 4);
988 *p = cpu_to_be32(create->u.symlink.len);
989 xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len);
992 case NF4BLK: case NF4CHR:
993 p = reserve_space(xdr, 8);
994 *p++ = cpu_to_be32(create->u.device.specdata1);
995 *p = cpu_to_be32(create->u.device.specdata2);
1002 encode_string(xdr, create->name->len, create->name->name);
1004 hdr->replen += decode_create_maxsz;
1006 encode_attrs(xdr, create->attrs, create->server);
1009 static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr)
1013 p = reserve_space(xdr, 12);
1014 *p++ = cpu_to_be32(OP_GETATTR);
1015 *p++ = cpu_to_be32(1);
1016 *p = cpu_to_be32(bitmap);
1018 hdr->replen += decode_getattr_maxsz;
1021 static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr)
1025 p = reserve_space(xdr, 16);
1026 *p++ = cpu_to_be32(OP_GETATTR);
1027 *p++ = cpu_to_be32(2);
1028 *p++ = cpu_to_be32(bm0);
1029 *p = cpu_to_be32(bm1);
1031 hdr->replen += decode_getattr_maxsz;
1034 static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1036 encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0],
1037 bitmask[1] & nfs4_fattr_bitmap[1], hdr);
1040 static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1042 encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0],
1043 bitmask[1] & nfs4_fsinfo_bitmap[1], hdr);
1046 static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1048 encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0],
1049 bitmask[1] & nfs4_fs_locations_bitmap[1], hdr);
1052 static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1056 p = reserve_space(xdr, 4);
1057 *p = cpu_to_be32(OP_GETFH);
1059 hdr->replen += decode_getfh_maxsz;
1062 static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1066 p = reserve_space(xdr, 8 + name->len);
1067 *p++ = cpu_to_be32(OP_LINK);
1068 xdr_encode_opaque(p, name->name, name->len);
1070 hdr->replen += decode_link_maxsz;
1073 static inline int nfs4_lock_type(struct file_lock *fl, int block)
1075 if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK)
1076 return block ? NFS4_READW_LT : NFS4_READ_LT;
1077 return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT;
1080 static inline uint64_t nfs4_lock_length(struct file_lock *fl)
1082 if (fl->fl_end == OFFSET_MAX)
1083 return ~(uint64_t)0;
1084 return fl->fl_end - fl->fl_start + 1;
1087 static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner)
1091 p = reserve_space(xdr, 28);
1092 p = xdr_encode_hyper(p, lowner->clientid);
1093 *p++ = cpu_to_be32(16);
1094 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
1095 xdr_encode_hyper(p, lowner->id);
1099 * opcode,type,reclaim,offset,length,new_lock_owner = 32
1100 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
1102 static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr)
1106 p = reserve_space(xdr, 32);
1107 *p++ = cpu_to_be32(OP_LOCK);
1108 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block));
1109 *p++ = cpu_to_be32(args->reclaim);
1110 p = xdr_encode_hyper(p, args->fl->fl_start);
1111 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1112 *p = cpu_to_be32(args->new_lock_owner);
1113 if (args->new_lock_owner){
1114 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
1115 *p++ = cpu_to_be32(args->open_seqid->sequence->counter);
1116 p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE);
1117 *p++ = cpu_to_be32(args->lock_seqid->sequence->counter);
1118 encode_lockowner(xdr, &args->lock_owner);
1121 p = reserve_space(xdr, NFS4_STATEID_SIZE+4);
1122 p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE);
1123 *p = cpu_to_be32(args->lock_seqid->sequence->counter);
1126 hdr->replen += decode_lock_maxsz;
1129 static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr)
1133 p = reserve_space(xdr, 24);
1134 *p++ = cpu_to_be32(OP_LOCKT);
1135 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1136 p = xdr_encode_hyper(p, args->fl->fl_start);
1137 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1138 encode_lockowner(xdr, &args->lock_owner);
1140 hdr->replen += decode_lockt_maxsz;
1143 static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr)
1147 p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16);
1148 *p++ = cpu_to_be32(OP_LOCKU);
1149 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1150 *p++ = cpu_to_be32(args->seqid->sequence->counter);
1151 p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
1152 p = xdr_encode_hyper(p, args->fl->fl_start);
1153 xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1155 hdr->replen += decode_locku_maxsz;
1158 static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr)
1162 p = reserve_space(xdr, 4);
1163 *p = cpu_to_be32(OP_RELEASE_LOCKOWNER);
1164 encode_lockowner(xdr, lowner);
1166 hdr->replen += decode_release_lockowner_maxsz;
1169 static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1171 int len = name->len;
1174 p = reserve_space(xdr, 8 + len);
1175 *p++ = cpu_to_be32(OP_LOOKUP);
1176 xdr_encode_opaque(p, name->name, len);
1178 hdr->replen += decode_lookup_maxsz;
1181 static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode)
1185 p = reserve_space(xdr, 8);
1186 switch (fmode & (FMODE_READ|FMODE_WRITE)) {
1188 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ);
1191 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE);
1193 case FMODE_READ|FMODE_WRITE:
1194 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH);
1197 *p++ = cpu_to_be32(0);
1199 *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */
1202 static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1206 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1209 p = reserve_space(xdr, 8);
1210 *p++ = cpu_to_be32(OP_OPEN);
1211 *p = cpu_to_be32(arg->seqid->sequence->counter);
1212 encode_share_access(xdr, arg->fmode);
1213 p = reserve_space(xdr, 28);
1214 p = xdr_encode_hyper(p, arg->clientid);
1215 *p++ = cpu_to_be32(16);
1216 p = xdr_encode_opaque_fixed(p, "open id:", 8);
1217 xdr_encode_hyper(p, arg->id);
1220 static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1223 struct nfs_client *clp;
1225 p = reserve_space(xdr, 4);
1226 switch(arg->open_flags & O_EXCL) {
1228 *p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
1229 encode_attrs(xdr, arg->u.attrs, arg->server);
1232 clp = arg->server->nfs_client;
1233 if (clp->cl_mvops->minor_version > 0) {
1234 if (nfs4_has_persistent_session(clp)) {
1235 *p = cpu_to_be32(NFS4_CREATE_GUARDED);
1236 encode_attrs(xdr, arg->u.attrs, arg->server);
1240 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1);
1241 encode_nfs4_verifier(xdr, &arg->u.verifier);
1243 encode_attrs(xdr, &dummy, arg->server);
1246 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
1247 encode_nfs4_verifier(xdr, &arg->u.verifier);
1252 static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1256 p = reserve_space(xdr, 4);
1257 switch (arg->open_flags & O_CREAT) {
1259 *p = cpu_to_be32(NFS4_OPEN_NOCREATE);
1262 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
1263 *p = cpu_to_be32(NFS4_OPEN_CREATE);
1264 encode_createmode(xdr, arg);
1268 static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type)
1272 p = reserve_space(xdr, 4);
1273 switch (delegation_type) {
1275 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE);
1278 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ);
1280 case FMODE_WRITE|FMODE_READ:
1281 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE);
1288 static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
1292 p = reserve_space(xdr, 4);
1293 *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL);
1294 encode_string(xdr, name->len, name->name);
1297 static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type)
1301 p = reserve_space(xdr, 4);
1302 *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS);
1303 encode_delegation_type(xdr, type);
1306 static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
1310 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1311 *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
1312 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
1313 encode_string(xdr, name->len, name->name);
1316 static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr)
1318 encode_openhdr(xdr, arg);
1319 encode_opentype(xdr, arg);
1320 switch (arg->claim) {
1321 case NFS4_OPEN_CLAIM_NULL:
1322 encode_claim_null(xdr, arg->name);
1324 case NFS4_OPEN_CLAIM_PREVIOUS:
1325 encode_claim_previous(xdr, arg->u.delegation_type);
1327 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
1328 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
1334 hdr->replen += decode_open_maxsz;
1337 static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr)
1341 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
1342 *p++ = cpu_to_be32(OP_OPEN_CONFIRM);
1343 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
1344 *p = cpu_to_be32(arg->seqid->sequence->counter);
1346 hdr->replen += decode_open_confirm_maxsz;
1349 static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
1353 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
1354 *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE);
1355 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
1356 *p = cpu_to_be32(arg->seqid->sequence->counter);
1357 encode_share_access(xdr, arg->fmode);
1359 hdr->replen += decode_open_downgrade_maxsz;
1363 encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr)
1368 p = reserve_space(xdr, 8 + len);
1369 *p++ = cpu_to_be32(OP_PUTFH);
1370 xdr_encode_opaque(p, fh->data, len);
1372 hdr->replen += decode_putfh_maxsz;
1375 static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1379 p = reserve_space(xdr, 4);
1380 *p = cpu_to_be32(OP_PUTROOTFH);
1382 hdr->replen += decode_putrootfh_maxsz;
1385 static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx)
1387 nfs4_stateid stateid;
1390 p = reserve_space(xdr, NFS4_STATEID_SIZE);
1391 if (ctx->state != NULL) {
1392 nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid);
1393 xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE);
1395 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
1398 static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr)
1402 p = reserve_space(xdr, 4);
1403 *p = cpu_to_be32(OP_READ);
1405 encode_stateid(xdr, args->context, args->lock_context);
1407 p = reserve_space(xdr, 12);
1408 p = xdr_encode_hyper(p, args->offset);
1409 *p = cpu_to_be32(args->count);
1411 hdr->replen += decode_read_maxsz;
1414 static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr)
1416 uint32_t attrs[2] = {0, 0};
1417 uint32_t dircount = readdir->count >> 1;
1420 if (readdir->plus) {
1421 attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE|
1422 FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE;
1423 attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER|
1424 FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV|
1425 FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS|
1426 FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
1429 attrs[0] |= FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID;
1430 attrs[1] |= FATTR4_WORD1_MOUNTED_ON_FILEID;
1431 /* Switch to mounted_on_fileid if the server supports it */
1432 if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)
1433 attrs[0] &= ~FATTR4_WORD0_FILEID;
1435 attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
1437 p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20);
1438 *p++ = cpu_to_be32(OP_READDIR);
1439 p = xdr_encode_hyper(p, readdir->cookie);
1440 p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE);
1441 *p++ = cpu_to_be32(dircount);
1442 *p++ = cpu_to_be32(readdir->count);
1443 *p++ = cpu_to_be32(2);
1445 *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]);
1446 *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]);
1448 hdr->replen += decode_readdir_maxsz;
1449 dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n",
1451 (unsigned long long)readdir->cookie,
1452 ((u32 *)readdir->verifier.data)[0],
1453 ((u32 *)readdir->verifier.data)[1],
1454 attrs[0] & readdir->bitmask[0],
1455 attrs[1] & readdir->bitmask[1]);
1458 static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr)
1462 p = reserve_space(xdr, 4);
1463 *p = cpu_to_be32(OP_READLINK);
1465 hdr->replen += decode_readlink_maxsz;
1468 static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1472 p = reserve_space(xdr, 8 + name->len);
1473 *p++ = cpu_to_be32(OP_REMOVE);
1474 xdr_encode_opaque(p, name->name, name->len);
1476 hdr->replen += decode_remove_maxsz;
1479 static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr)
1483 p = reserve_space(xdr, 4);
1484 *p = cpu_to_be32(OP_RENAME);
1485 encode_string(xdr, oldname->len, oldname->name);
1486 encode_string(xdr, newname->len, newname->name);
1488 hdr->replen += decode_rename_maxsz;
1491 static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr)
1495 p = reserve_space(xdr, 12);
1496 *p++ = cpu_to_be32(OP_RENEW);
1497 xdr_encode_hyper(p, client_stateid->cl_clientid);
1499 hdr->replen += decode_renew_maxsz;
1503 encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1507 p = reserve_space(xdr, 4);
1508 *p = cpu_to_be32(OP_RESTOREFH);
1510 hdr->replen += decode_restorefh_maxsz;
1514 encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr)
1518 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1519 *p++ = cpu_to_be32(OP_SETATTR);
1520 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
1521 p = reserve_space(xdr, 2*4);
1522 *p++ = cpu_to_be32(1);
1523 *p = cpu_to_be32(FATTR4_WORD0_ACL);
1524 if (arg->acl_len % 4)
1526 p = reserve_space(xdr, 4);
1527 *p = cpu_to_be32(arg->acl_len);
1528 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
1530 hdr->replen += decode_setacl_maxsz;
1535 encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1539 p = reserve_space(xdr, 4);
1540 *p = cpu_to_be32(OP_SAVEFH);
1542 hdr->replen += decode_savefh_maxsz;
1545 static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr)
1549 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1550 *p++ = cpu_to_be32(OP_SETATTR);
1551 xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE);
1553 hdr->replen += decode_setattr_maxsz;
1554 encode_attrs(xdr, arg->iap, server);
1557 static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr)
1561 p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE);
1562 *p++ = cpu_to_be32(OP_SETCLIENTID);
1563 xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE);
1565 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
1566 p = reserve_space(xdr, 4);
1567 *p = cpu_to_be32(setclientid->sc_prog);
1568 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1569 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
1570 p = reserve_space(xdr, 4);
1571 *p = cpu_to_be32(setclientid->sc_cb_ident);
1573 hdr->replen += decode_setclientid_maxsz;
1576 static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr)
1580 p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE);
1581 *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM);
1582 p = xdr_encode_hyper(p, arg->clientid);
1583 xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE);
1585 hdr->replen += decode_setclientid_confirm_maxsz;
1588 static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
1592 p = reserve_space(xdr, 4);
1593 *p = cpu_to_be32(OP_WRITE);
1595 encode_stateid(xdr, args->context, args->lock_context);
1597 p = reserve_space(xdr, 16);
1598 p = xdr_encode_hyper(p, args->offset);
1599 *p++ = cpu_to_be32(args->stable);
1600 *p = cpu_to_be32(args->count);
1602 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
1604 hdr->replen += decode_write_maxsz;
1607 static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr)
1611 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1613 *p++ = cpu_to_be32(OP_DELEGRETURN);
1614 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
1616 hdr->replen += decode_delegreturn_maxsz;
1619 #if defined(CONFIG_NFS_V4_1)
1620 /* NFSv4.1 operations */
1621 static void encode_exchange_id(struct xdr_stream *xdr,
1622 struct nfs41_exchange_id_args *args,
1623 struct compound_hdr *hdr)
1627 p = reserve_space(xdr, 4 + sizeof(args->verifier->data));
1628 *p++ = cpu_to_be32(OP_EXCHANGE_ID);
1629 xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data));
1631 encode_string(xdr, args->id_len, args->id);
1633 p = reserve_space(xdr, 12);
1634 *p++ = cpu_to_be32(args->flags);
1635 *p++ = cpu_to_be32(0); /* zero length state_protect4_a */
1636 *p = cpu_to_be32(0); /* zero length implementation id array */
1638 hdr->replen += decode_exchange_id_maxsz;
1641 static void encode_create_session(struct xdr_stream *xdr,
1642 struct nfs41_create_session_args *args,
1643 struct compound_hdr *hdr)
1646 char machine_name[NFS4_MAX_MACHINE_NAME_LEN];
1648 struct nfs_client *clp = args->client;
1649 u32 max_resp_sz_cached;
1652 * Assumes OPEN is the biggest non-idempotent compound.
1653 * 2 is the verifier.
1655 max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE +
1656 RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT;
1658 len = scnprintf(machine_name, sizeof(machine_name), "%s",
1661 p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12);
1662 *p++ = cpu_to_be32(OP_CREATE_SESSION);
1663 p = xdr_encode_hyper(p, clp->cl_ex_clid);
1664 *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */
1665 *p++ = cpu_to_be32(args->flags); /*flags */
1668 *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */
1669 *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */
1670 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */
1671 *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */
1672 *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */
1673 *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */
1674 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1677 *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */
1678 *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */
1679 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */
1680 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1681 *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */
1682 *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */
1683 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1685 *p++ = cpu_to_be32(args->cb_program); /* cb_program */
1686 *p++ = cpu_to_be32(1);
1687 *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */
1689 /* authsys_parms rfc1831 */
1690 *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */
1691 p = xdr_encode_opaque(p, machine_name, len);
1692 *p++ = cpu_to_be32(0); /* UID */
1693 *p++ = cpu_to_be32(0); /* GID */
1694 *p = cpu_to_be32(0); /* No more gids */
1696 hdr->replen += decode_create_session_maxsz;
1699 static void encode_destroy_session(struct xdr_stream *xdr,
1700 struct nfs4_session *session,
1701 struct compound_hdr *hdr)
1704 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN);
1705 *p++ = cpu_to_be32(OP_DESTROY_SESSION);
1706 xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1708 hdr->replen += decode_destroy_session_maxsz;
1711 static void encode_reclaim_complete(struct xdr_stream *xdr,
1712 struct nfs41_reclaim_complete_args *args,
1713 struct compound_hdr *hdr)
1717 p = reserve_space(xdr, 8);
1718 *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE);
1719 *p++ = cpu_to_be32(args->one_fs);
1721 hdr->replen += decode_reclaim_complete_maxsz;
1723 #endif /* CONFIG_NFS_V4_1 */
1725 static void encode_sequence(struct xdr_stream *xdr,
1726 const struct nfs4_sequence_args *args,
1727 struct compound_hdr *hdr)
1729 #if defined(CONFIG_NFS_V4_1)
1730 struct nfs4_session *session = args->sa_session;
1731 struct nfs4_slot_table *tp;
1732 struct nfs4_slot *slot;
1738 tp = &session->fc_slot_table;
1740 WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE);
1741 slot = tp->slots + args->sa_slotid;
1743 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16);
1744 *p++ = cpu_to_be32(OP_SEQUENCE);
1747 * Sessionid + seqid + slotid + max slotid + cache_this
1749 dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
1750 "max_slotid=%d cache_this=%d\n",
1752 ((u32 *)session->sess_id.data)[0],
1753 ((u32 *)session->sess_id.data)[1],
1754 ((u32 *)session->sess_id.data)[2],
1755 ((u32 *)session->sess_id.data)[3],
1756 slot->seq_nr, args->sa_slotid,
1757 tp->highest_used_slotid, args->sa_cache_this);
1758 p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1759 *p++ = cpu_to_be32(slot->seq_nr);
1760 *p++ = cpu_to_be32(args->sa_slotid);
1761 *p++ = cpu_to_be32(tp->highest_used_slotid);
1762 *p = cpu_to_be32(args->sa_cache_this);
1764 hdr->replen += decode_sequence_maxsz;
1765 #endif /* CONFIG_NFS_V4_1 */
1768 #ifdef CONFIG_NFS_V4_1
1770 encode_getdeviceinfo(struct xdr_stream *xdr,
1771 const struct nfs4_getdeviceinfo_args *args,
1772 struct compound_hdr *hdr)
1776 p = reserve_space(xdr, 16 + NFS4_DEVICEID4_SIZE);
1777 *p++ = cpu_to_be32(OP_GETDEVICEINFO);
1778 p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data,
1779 NFS4_DEVICEID4_SIZE);
1780 *p++ = cpu_to_be32(args->pdev->layout_type);
1781 *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */
1782 *p++ = cpu_to_be32(0); /* bitmap length 0 */
1784 hdr->replen += decode_getdeviceinfo_maxsz;
1788 encode_layoutget(struct xdr_stream *xdr,
1789 const struct nfs4_layoutget_args *args,
1790 struct compound_hdr *hdr)
1792 nfs4_stateid stateid;
1795 p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE);
1796 *p++ = cpu_to_be32(OP_LAYOUTGET);
1797 *p++ = cpu_to_be32(0); /* Signal layout available */
1798 *p++ = cpu_to_be32(args->type);
1799 *p++ = cpu_to_be32(args->range.iomode);
1800 p = xdr_encode_hyper(p, args->range.offset);
1801 p = xdr_encode_hyper(p, args->range.length);
1802 p = xdr_encode_hyper(p, args->minlength);
1803 pnfs_get_layout_stateid(&stateid, NFS_I(args->inode)->layout,
1805 p = xdr_encode_opaque_fixed(p, &stateid.data, NFS4_STATEID_SIZE);
1806 *p = cpu_to_be32(args->maxcount);
1808 dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n",
1812 (unsigned long)args->range.offset,
1813 (unsigned long)args->range.length,
1816 hdr->replen += decode_layoutget_maxsz;
1818 #endif /* CONFIG_NFS_V4_1 */
1821 * END OF "GENERIC" ENCODE ROUTINES.
1824 static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
1826 #if defined(CONFIG_NFS_V4_1)
1827 if (args->sa_session)
1828 return args->sa_session->clp->cl_mvops->minor_version;
1829 #endif /* CONFIG_NFS_V4_1 */
1834 * Encode an ACCESS request
1836 static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args)
1838 struct xdr_stream xdr;
1839 struct compound_hdr hdr = {
1840 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
1843 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1844 encode_compound_hdr(&xdr, req, &hdr);
1845 encode_sequence(&xdr, &args->seq_args, &hdr);
1846 encode_putfh(&xdr, args->fh, &hdr);
1847 encode_access(&xdr, args->access, &hdr);
1848 encode_getfattr(&xdr, args->bitmask, &hdr);
1854 * Encode LOOKUP request
1856 static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args)
1858 struct xdr_stream xdr;
1859 struct compound_hdr hdr = {
1860 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
1863 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1864 encode_compound_hdr(&xdr, req, &hdr);
1865 encode_sequence(&xdr, &args->seq_args, &hdr);
1866 encode_putfh(&xdr, args->dir_fh, &hdr);
1867 encode_lookup(&xdr, args->name, &hdr);
1868 encode_getfh(&xdr, &hdr);
1869 encode_getfattr(&xdr, args->bitmask, &hdr);
1875 * Encode LOOKUP_ROOT request
1877 static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args)
1879 struct xdr_stream xdr;
1880 struct compound_hdr hdr = {
1881 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
1884 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1885 encode_compound_hdr(&xdr, req, &hdr);
1886 encode_sequence(&xdr, &args->seq_args, &hdr);
1887 encode_putrootfh(&xdr, &hdr);
1888 encode_getfh(&xdr, &hdr);
1889 encode_getfattr(&xdr, args->bitmask, &hdr);
1895 * Encode REMOVE request
1897 static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args)
1899 struct xdr_stream xdr;
1900 struct compound_hdr hdr = {
1901 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
1904 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1905 encode_compound_hdr(&xdr, req, &hdr);
1906 encode_sequence(&xdr, &args->seq_args, &hdr);
1907 encode_putfh(&xdr, args->fh, &hdr);
1908 encode_remove(&xdr, &args->name, &hdr);
1909 encode_getfattr(&xdr, args->bitmask, &hdr);
1915 * Encode RENAME request
1917 static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs_renameargs *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->old_dir, &hdr);
1928 encode_savefh(&xdr, &hdr);
1929 encode_putfh(&xdr, args->new_dir, &hdr);
1930 encode_rename(&xdr, args->old_name, args->new_name, &hdr);
1931 encode_getfattr(&xdr, args->bitmask, &hdr);
1932 encode_restorefh(&xdr, &hdr);
1933 encode_getfattr(&xdr, args->bitmask, &hdr);
1939 * Encode LINK request
1941 static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args)
1943 struct xdr_stream xdr;
1944 struct compound_hdr hdr = {
1945 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
1948 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1949 encode_compound_hdr(&xdr, req, &hdr);
1950 encode_sequence(&xdr, &args->seq_args, &hdr);
1951 encode_putfh(&xdr, args->fh, &hdr);
1952 encode_savefh(&xdr, &hdr);
1953 encode_putfh(&xdr, args->dir_fh, &hdr);
1954 encode_link(&xdr, args->name, &hdr);
1955 encode_getfattr(&xdr, args->bitmask, &hdr);
1956 encode_restorefh(&xdr, &hdr);
1957 encode_getfattr(&xdr, args->bitmask, &hdr);
1963 * Encode CREATE request
1965 static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args)
1967 struct xdr_stream xdr;
1968 struct compound_hdr hdr = {
1969 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
1972 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
1973 encode_compound_hdr(&xdr, req, &hdr);
1974 encode_sequence(&xdr, &args->seq_args, &hdr);
1975 encode_putfh(&xdr, args->dir_fh, &hdr);
1976 encode_savefh(&xdr, &hdr);
1977 encode_create(&xdr, args, &hdr);
1978 encode_getfh(&xdr, &hdr);
1979 encode_getfattr(&xdr, args->bitmask, &hdr);
1980 encode_restorefh(&xdr, &hdr);
1981 encode_getfattr(&xdr, args->bitmask, &hdr);
1987 * Encode SYMLINK request
1989 static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args)
1991 return nfs4_xdr_enc_create(req, p, args);
1995 * Encode GETATTR request
1997 static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args)
1999 struct xdr_stream xdr;
2000 struct compound_hdr hdr = {
2001 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2004 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2005 encode_compound_hdr(&xdr, req, &hdr);
2006 encode_sequence(&xdr, &args->seq_args, &hdr);
2007 encode_putfh(&xdr, args->fh, &hdr);
2008 encode_getfattr(&xdr, args->bitmask, &hdr);
2014 * Encode a CLOSE request
2016 static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args)
2018 struct xdr_stream xdr;
2019 struct compound_hdr hdr = {
2020 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2023 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2024 encode_compound_hdr(&xdr, req, &hdr);
2025 encode_sequence(&xdr, &args->seq_args, &hdr);
2026 encode_putfh(&xdr, args->fh, &hdr);
2027 encode_close(&xdr, args, &hdr);
2028 encode_getfattr(&xdr, args->bitmask, &hdr);
2034 * Encode an OPEN request
2036 static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args)
2038 struct xdr_stream xdr;
2039 struct compound_hdr hdr = {
2040 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2043 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2044 encode_compound_hdr(&xdr, req, &hdr);
2045 encode_sequence(&xdr, &args->seq_args, &hdr);
2046 encode_putfh(&xdr, args->fh, &hdr);
2047 encode_savefh(&xdr, &hdr);
2048 encode_open(&xdr, args, &hdr);
2049 encode_getfh(&xdr, &hdr);
2050 encode_getfattr(&xdr, args->bitmask, &hdr);
2051 encode_restorefh(&xdr, &hdr);
2052 encode_getfattr(&xdr, args->bitmask, &hdr);
2058 * Encode an OPEN_CONFIRM request
2060 static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args)
2062 struct xdr_stream xdr;
2063 struct compound_hdr hdr = {
2067 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2068 encode_compound_hdr(&xdr, req, &hdr);
2069 encode_putfh(&xdr, args->fh, &hdr);
2070 encode_open_confirm(&xdr, args, &hdr);
2076 * Encode an OPEN request with no attributes.
2078 static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args)
2080 struct xdr_stream xdr;
2081 struct compound_hdr hdr = {
2082 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2085 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2086 encode_compound_hdr(&xdr, req, &hdr);
2087 encode_sequence(&xdr, &args->seq_args, &hdr);
2088 encode_putfh(&xdr, args->fh, &hdr);
2089 encode_open(&xdr, args, &hdr);
2090 encode_getfattr(&xdr, args->bitmask, &hdr);
2096 * Encode an OPEN_DOWNGRADE request
2098 static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args)
2100 struct xdr_stream xdr;
2101 struct compound_hdr hdr = {
2102 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2105 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2106 encode_compound_hdr(&xdr, req, &hdr);
2107 encode_sequence(&xdr, &args->seq_args, &hdr);
2108 encode_putfh(&xdr, args->fh, &hdr);
2109 encode_open_downgrade(&xdr, args, &hdr);
2110 encode_getfattr(&xdr, args->bitmask, &hdr);
2116 * Encode a LOCK request
2118 static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args)
2120 struct xdr_stream xdr;
2121 struct compound_hdr hdr = {
2122 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2125 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2126 encode_compound_hdr(&xdr, req, &hdr);
2127 encode_sequence(&xdr, &args->seq_args, &hdr);
2128 encode_putfh(&xdr, args->fh, &hdr);
2129 encode_lock(&xdr, args, &hdr);
2135 * Encode a LOCKT request
2137 static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args)
2139 struct xdr_stream xdr;
2140 struct compound_hdr hdr = {
2141 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2144 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2145 encode_compound_hdr(&xdr, req, &hdr);
2146 encode_sequence(&xdr, &args->seq_args, &hdr);
2147 encode_putfh(&xdr, args->fh, &hdr);
2148 encode_lockt(&xdr, args, &hdr);
2154 * Encode a LOCKU request
2156 static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *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_locku(&xdr, args, &hdr);
2172 static int nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, __be32 *p, struct nfs_release_lockowner_args *args)
2174 struct xdr_stream xdr;
2175 struct compound_hdr hdr = {
2179 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2180 encode_compound_hdr(&xdr, req, &hdr);
2181 encode_release_lockowner(&xdr, &args->lock_owner, &hdr);
2187 * Encode a READLINK request
2189 static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args)
2191 struct xdr_stream xdr;
2192 struct compound_hdr hdr = {
2193 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2196 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2197 encode_compound_hdr(&xdr, req, &hdr);
2198 encode_sequence(&xdr, &args->seq_args, &hdr);
2199 encode_putfh(&xdr, args->fh, &hdr);
2200 encode_readlink(&xdr, args, req, &hdr);
2202 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
2203 args->pgbase, args->pglen);
2209 * Encode a READDIR request
2211 static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args)
2213 struct xdr_stream xdr;
2214 struct compound_hdr hdr = {
2215 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2218 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2219 encode_compound_hdr(&xdr, req, &hdr);
2220 encode_sequence(&xdr, &args->seq_args, &hdr);
2221 encode_putfh(&xdr, args->fh, &hdr);
2222 encode_readdir(&xdr, args, req, &hdr);
2224 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
2225 args->pgbase, args->count);
2226 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
2227 __func__, hdr.replen << 2, args->pages,
2228 args->pgbase, args->count);
2234 * Encode a READ request
2236 static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
2238 struct xdr_stream xdr;
2239 struct compound_hdr hdr = {
2240 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2243 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2244 encode_compound_hdr(&xdr, req, &hdr);
2245 encode_sequence(&xdr, &args->seq_args, &hdr);
2246 encode_putfh(&xdr, args->fh, &hdr);
2247 encode_read(&xdr, args, &hdr);
2249 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
2250 args->pages, args->pgbase, args->count);
2251 req->rq_rcv_buf.flags |= XDRBUF_READ;
2257 * Encode an SETATTR request
2259 static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args)
2261 struct xdr_stream xdr;
2262 struct compound_hdr hdr = {
2263 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2266 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2267 encode_compound_hdr(&xdr, req, &hdr);
2268 encode_sequence(&xdr, &args->seq_args, &hdr);
2269 encode_putfh(&xdr, args->fh, &hdr);
2270 encode_setattr(&xdr, args, args->server, &hdr);
2271 encode_getfattr(&xdr, args->bitmask, &hdr);
2277 * Encode a GETACL request
2280 nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p,
2281 struct nfs_getaclargs *args)
2283 struct xdr_stream xdr;
2284 struct compound_hdr hdr = {
2285 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2289 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2290 encode_compound_hdr(&xdr, req, &hdr);
2291 encode_sequence(&xdr, &args->seq_args, &hdr);
2292 encode_putfh(&xdr, args->fh, &hdr);
2293 replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1;
2294 encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr);
2296 xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
2297 args->acl_pages, args->acl_pgbase, args->acl_len);
2303 * Encode a WRITE request
2305 static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *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_write(&xdr, args, &hdr);
2317 req->rq_snd_buf.flags |= XDRBUF_WRITE;
2318 encode_getfattr(&xdr, args->bitmask, &hdr);
2326 static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *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->fh, &hdr);
2337 encode_commit(&xdr, args, &hdr);
2338 encode_getfattr(&xdr, args->bitmask, &hdr);
2346 static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args)
2348 struct xdr_stream xdr;
2349 struct compound_hdr hdr = {
2350 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2353 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2354 encode_compound_hdr(&xdr, req, &hdr);
2355 encode_sequence(&xdr, &args->seq_args, &hdr);
2356 encode_putfh(&xdr, args->fh, &hdr);
2357 encode_fsinfo(&xdr, args->bitmask, &hdr);
2363 * a PATHCONF request
2365 static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args)
2367 struct xdr_stream xdr;
2368 struct compound_hdr hdr = {
2369 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2372 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2373 encode_compound_hdr(&xdr, req, &hdr);
2374 encode_sequence(&xdr, &args->seq_args, &hdr);
2375 encode_putfh(&xdr, args->fh, &hdr);
2376 encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0],
2385 static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args)
2387 struct xdr_stream xdr;
2388 struct compound_hdr hdr = {
2389 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2392 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2393 encode_compound_hdr(&xdr, req, &hdr);
2394 encode_sequence(&xdr, &args->seq_args, &hdr);
2395 encode_putfh(&xdr, args->fh, &hdr);
2396 encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0],
2397 args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr);
2403 * GETATTR_BITMAP request
2405 static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p,
2406 struct nfs4_server_caps_arg *args)
2408 struct xdr_stream xdr;
2409 struct compound_hdr hdr = {
2410 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2413 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2414 encode_compound_hdr(&xdr, req, &hdr);
2415 encode_sequence(&xdr, &args->seq_args, &hdr);
2416 encode_putfh(&xdr, args->fhandle, &hdr);
2417 encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
2418 FATTR4_WORD0_LINK_SUPPORT|
2419 FATTR4_WORD0_SYMLINK_SUPPORT|
2420 FATTR4_WORD0_ACLSUPPORT, &hdr);
2428 static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp)
2430 struct xdr_stream xdr;
2431 struct compound_hdr hdr = {
2435 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2436 encode_compound_hdr(&xdr, req, &hdr);
2437 encode_renew(&xdr, clp, &hdr);
2443 * a SETCLIENTID request
2445 static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc)
2447 struct xdr_stream xdr;
2448 struct compound_hdr hdr = {
2452 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2453 encode_compound_hdr(&xdr, req, &hdr);
2454 encode_setclientid(&xdr, sc, &hdr);
2460 * a SETCLIENTID_CONFIRM request
2462 static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid_res *arg)
2464 struct xdr_stream xdr;
2465 struct compound_hdr hdr = {
2468 const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
2470 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2471 encode_compound_hdr(&xdr, req, &hdr);
2472 encode_setclientid_confirm(&xdr, arg, &hdr);
2473 encode_putrootfh(&xdr, &hdr);
2474 encode_fsinfo(&xdr, lease_bitmap, &hdr);
2480 * DELEGRETURN request
2482 static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args)
2484 struct xdr_stream xdr;
2485 struct compound_hdr hdr = {
2486 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2489 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2490 encode_compound_hdr(&xdr, req, &hdr);
2491 encode_sequence(&xdr, &args->seq_args, &hdr);
2492 encode_putfh(&xdr, args->fhandle, &hdr);
2493 encode_delegreturn(&xdr, args->stateid, &hdr);
2494 encode_getfattr(&xdr, args->bitmask, &hdr);
2500 * Encode FS_LOCATIONS request
2502 static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args)
2504 struct xdr_stream xdr;
2505 struct compound_hdr hdr = {
2506 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2510 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2511 encode_compound_hdr(&xdr, req, &hdr);
2512 encode_sequence(&xdr, &args->seq_args, &hdr);
2513 encode_putfh(&xdr, args->dir_fh, &hdr);
2514 encode_lookup(&xdr, args->name, &hdr);
2515 replen = hdr.replen; /* get the attribute into args->page */
2516 encode_fs_locations(&xdr, args->bitmask, &hdr);
2518 xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
2524 #if defined(CONFIG_NFS_V4_1)
2526 * EXCHANGE_ID request
2528 static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p,
2529 struct nfs41_exchange_id_args *args)
2531 struct xdr_stream xdr;
2532 struct compound_hdr hdr = {
2533 .minorversion = args->client->cl_mvops->minor_version,
2536 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2537 encode_compound_hdr(&xdr, req, &hdr);
2538 encode_exchange_id(&xdr, args, &hdr);
2544 * a CREATE_SESSION request
2546 static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p,
2547 struct nfs41_create_session_args *args)
2549 struct xdr_stream xdr;
2550 struct compound_hdr hdr = {
2551 .minorversion = args->client->cl_mvops->minor_version,
2554 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2555 encode_compound_hdr(&xdr, req, &hdr);
2556 encode_create_session(&xdr, args, &hdr);
2562 * a DESTROY_SESSION request
2564 static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p,
2565 struct nfs4_session *session)
2567 struct xdr_stream xdr;
2568 struct compound_hdr hdr = {
2569 .minorversion = session->clp->cl_mvops->minor_version,
2572 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2573 encode_compound_hdr(&xdr, req, &hdr);
2574 encode_destroy_session(&xdr, session, &hdr);
2580 * a SEQUENCE request
2582 static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p,
2583 struct nfs4_sequence_args *args)
2585 struct xdr_stream xdr;
2586 struct compound_hdr hdr = {
2587 .minorversion = nfs4_xdr_minorversion(args),
2590 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2591 encode_compound_hdr(&xdr, req, &hdr);
2592 encode_sequence(&xdr, args, &hdr);
2598 * a GET_LEASE_TIME request
2600 static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p,
2601 struct nfs4_get_lease_time_args *args)
2603 struct xdr_stream xdr;
2604 struct compound_hdr hdr = {
2605 .minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
2607 const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
2609 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2610 encode_compound_hdr(&xdr, req, &hdr);
2611 encode_sequence(&xdr, &args->la_seq_args, &hdr);
2612 encode_putrootfh(&xdr, &hdr);
2613 encode_fsinfo(&xdr, lease_bitmap, &hdr);
2619 * a RECLAIM_COMPLETE request
2621 static int nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, uint32_t *p,
2622 struct nfs41_reclaim_complete_args *args)
2624 struct xdr_stream xdr;
2625 struct compound_hdr hdr = {
2626 .minorversion = nfs4_xdr_minorversion(&args->seq_args)
2629 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2630 encode_compound_hdr(&xdr, req, &hdr);
2631 encode_sequence(&xdr, &args->seq_args, &hdr);
2632 encode_reclaim_complete(&xdr, args, &hdr);
2638 * Encode GETDEVICEINFO request
2640 static int nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, uint32_t *p,
2641 struct nfs4_getdeviceinfo_args *args)
2643 struct xdr_stream xdr;
2644 struct compound_hdr hdr = {
2645 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2648 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2649 encode_compound_hdr(&xdr, req, &hdr);
2650 encode_sequence(&xdr, &args->seq_args, &hdr);
2651 encode_getdeviceinfo(&xdr, args, &hdr);
2653 /* set up reply kvec. Subtract notification bitmap max size (2)
2654 * so that notification bitmap is put in xdr_buf tail */
2655 xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2,
2656 args->pdev->pages, args->pdev->pgbase,
2664 * Encode LAYOUTGET request
2666 static int nfs4_xdr_enc_layoutget(struct rpc_rqst *req, uint32_t *p,
2667 struct nfs4_layoutget_args *args)
2669 struct xdr_stream xdr;
2670 struct compound_hdr hdr = {
2671 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2674 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
2675 encode_compound_hdr(&xdr, req, &hdr);
2676 encode_sequence(&xdr, &args->seq_args, &hdr);
2677 encode_putfh(&xdr, NFS_FH(args->inode), &hdr);
2678 encode_layoutget(&xdr, args, &hdr);
2682 #endif /* CONFIG_NFS_V4_1 */
2684 static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
2686 dprintk("nfs: %s: prematurely hit end of receive buffer. "
2687 "Remaining buffer length is %tu words.\n",
2688 func, xdr->end - xdr->p);
2691 static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
2695 p = xdr_inline_decode(xdr, 4);
2698 *len = be32_to_cpup(p);
2699 p = xdr_inline_decode(xdr, *len);
2702 *string = (char *)p;
2705 print_overflow_msg(__func__, xdr);
2709 static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
2713 p = xdr_inline_decode(xdr, 8);
2716 hdr->status = be32_to_cpup(p++);
2717 hdr->taglen = be32_to_cpup(p);
2719 p = xdr_inline_decode(xdr, hdr->taglen + 4);
2722 hdr->tag = (char *)p;
2723 p += XDR_QUADLEN(hdr->taglen);
2724 hdr->nops = be32_to_cpup(p);
2725 if (unlikely(hdr->nops < 1))
2726 return nfs4_stat_to_errno(hdr->status);
2729 print_overflow_msg(__func__, xdr);
2733 static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
2739 p = xdr_inline_decode(xdr, 8);
2742 opnum = be32_to_cpup(p++);
2743 if (opnum != expected) {
2744 dprintk("nfs: Server returned operation"
2745 " %d but we issued a request for %d\n",
2749 nfserr = be32_to_cpup(p);
2750 if (nfserr != NFS_OK)
2751 return nfs4_stat_to_errno(nfserr);
2754 print_overflow_msg(__func__, xdr);
2759 static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp)
2762 unsigned int strlen;
2765 p = xdr_inline_decode(xdr, 12);
2767 return decode_opaque_inline(xdr, &strlen, &str);
2768 print_overflow_msg(__func__, xdr);
2772 static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
2777 p = xdr_inline_decode(xdr, 4);
2780 bmlen = be32_to_cpup(p);
2782 bitmap[0] = bitmap[1] = 0;
2783 p = xdr_inline_decode(xdr, (bmlen << 2));
2787 bitmap[0] = be32_to_cpup(p++);
2789 bitmap[1] = be32_to_cpup(p);
2793 print_overflow_msg(__func__, xdr);
2797 static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep)
2801 p = xdr_inline_decode(xdr, 4);
2804 *attrlen = be32_to_cpup(p);
2808 print_overflow_msg(__func__, xdr);
2812 static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
2814 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
2816 ret = decode_attr_bitmap(xdr, bitmask);
2817 if (unlikely(ret < 0))
2819 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
2821 bitmask[0] = bitmask[1] = 0;
2822 dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]);
2826 static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
2832 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
2834 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
2835 p = xdr_inline_decode(xdr, 4);
2838 *type = be32_to_cpup(p);
2839 if (*type < NF4REG || *type > NF4NAMEDATTR) {
2840 dprintk("%s: bad type %d\n", __func__, *type);
2843 bitmap[0] &= ~FATTR4_WORD0_TYPE;
2844 ret = NFS_ATTR_FATTR_TYPE;
2846 dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]);
2849 print_overflow_msg(__func__, xdr);
2853 static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
2859 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
2861 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
2862 p = xdr_inline_decode(xdr, 8);
2865 xdr_decode_hyper(p, change);
2866 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
2867 ret = NFS_ATTR_FATTR_CHANGE;
2869 dprintk("%s: change attribute=%Lu\n", __func__,
2870 (unsigned long long)*change);
2873 print_overflow_msg(__func__, xdr);
2877 static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
2883 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
2885 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
2886 p = xdr_inline_decode(xdr, 8);
2889 xdr_decode_hyper(p, size);
2890 bitmap[0] &= ~FATTR4_WORD0_SIZE;
2891 ret = NFS_ATTR_FATTR_SIZE;
2893 dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size);
2896 print_overflow_msg(__func__, xdr);
2900 static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2905 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
2907 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
2908 p = xdr_inline_decode(xdr, 4);
2911 *res = be32_to_cpup(p);
2912 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
2914 dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true");
2917 print_overflow_msg(__func__, xdr);
2921 static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2926 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
2928 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
2929 p = xdr_inline_decode(xdr, 4);
2932 *res = be32_to_cpup(p);
2933 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
2935 dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true");
2938 print_overflow_msg(__func__, xdr);
2942 static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid)
2949 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
2951 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
2952 p = xdr_inline_decode(xdr, 16);
2955 p = xdr_decode_hyper(p, &fsid->major);
2956 xdr_decode_hyper(p, &fsid->minor);
2957 bitmap[0] &= ~FATTR4_WORD0_FSID;
2958 ret = NFS_ATTR_FATTR_FSID;
2960 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__,
2961 (unsigned long long)fsid->major,
2962 (unsigned long long)fsid->minor);
2965 print_overflow_msg(__func__, xdr);
2969 static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
2974 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
2976 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
2977 p = xdr_inline_decode(xdr, 4);
2980 *res = be32_to_cpup(p);
2981 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
2983 dprintk("%s: file size=%u\n", __func__, (unsigned int)*res);
2986 print_overflow_msg(__func__, xdr);
2990 static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap)
2994 if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U)))
2996 if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) {
2997 p = xdr_inline_decode(xdr, 4);
3000 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
3004 print_overflow_msg(__func__, xdr);
3008 static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh)
3014 memset(fh, 0, sizeof(*fh));
3016 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U)))
3018 if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) {
3019 p = xdr_inline_decode(xdr, 4);
3022 len = be32_to_cpup(p);
3023 if (len > NFS4_FHSIZE)
3025 p = xdr_inline_decode(xdr, len);
3029 memcpy(fh->data, p, len);
3032 bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE;
3036 print_overflow_msg(__func__, xdr);
3040 static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3044 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
3045 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
3047 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
3048 p = xdr_inline_decode(xdr, 4);
3051 *res = be32_to_cpup(p);
3052 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
3054 dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res);
3057 print_overflow_msg(__func__, xdr);
3061 static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3067 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
3069 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
3070 p = xdr_inline_decode(xdr, 8);
3073 xdr_decode_hyper(p, fileid);
3074 bitmap[0] &= ~FATTR4_WORD0_FILEID;
3075 ret = NFS_ATTR_FATTR_FILEID;
3077 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
3080 print_overflow_msg(__func__, xdr);
3084 static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3090 if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U)))
3092 if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) {
3093 p = xdr_inline_decode(xdr, 8);
3096 xdr_decode_hyper(p, fileid);
3097 bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
3098 ret = NFS_ATTR_FATTR_FILEID;
3100 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
3103 print_overflow_msg(__func__, xdr);
3107 static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3113 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
3115 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
3116 p = xdr_inline_decode(xdr, 8);
3119 xdr_decode_hyper(p, res);
3120 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
3122 dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res);
3125 print_overflow_msg(__func__, xdr);
3129 static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3135 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
3137 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
3138 p = xdr_inline_decode(xdr, 8);
3141 xdr_decode_hyper(p, res);
3142 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
3144 dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res);
3147 print_overflow_msg(__func__, xdr);
3151 static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3157 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
3159 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
3160 p = xdr_inline_decode(xdr, 8);
3163 xdr_decode_hyper(p, res);
3164 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
3166 dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res);
3169 print_overflow_msg(__func__, xdr);
3173 static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
3179 p = xdr_inline_decode(xdr, 4);
3182 n = be32_to_cpup(p);
3186 path->ncomponents = 0;
3187 while (path->ncomponents < n) {
3188 struct nfs4_string *component = &path->components[path->ncomponents];
3189 status = decode_opaque_inline(xdr, &component->len, &component->data);
3190 if (unlikely(status != 0))
3192 if (path->ncomponents != n)
3194 dprintk("%s", component->data);
3195 if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS)
3196 path->ncomponents++;
3198 dprintk("cannot parse %d components in path\n", n);
3206 /* a root pathname is sent as a zero component4 */
3207 path->ncomponents = 1;
3208 path->components[0].len=0;
3209 path->components[0].data=NULL;
3210 dprintk("path /\n");
3213 dprintk(" status %d", status);
3217 print_overflow_msg(__func__, xdr);
3221 static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
3227 if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U)))
3230 if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS)))
3232 dprintk("%s: fsroot ", __func__);
3233 status = decode_pathname(xdr, &res->fs_path);
3234 if (unlikely(status != 0))
3236 p = xdr_inline_decode(xdr, 4);
3239 n = be32_to_cpup(p);
3242 res->nlocations = 0;
3243 while (res->nlocations < n) {
3245 struct nfs4_fs_location *loc = &res->locations[res->nlocations];
3247 p = xdr_inline_decode(xdr, 4);
3250 m = be32_to_cpup(p);
3253 dprintk("%s: servers ", __func__);
3254 while (loc->nservers < m) {
3255 struct nfs4_string *server = &loc->servers[loc->nservers];
3256 status = decode_opaque_inline(xdr, &server->len, &server->data);
3257 if (unlikely(status != 0))
3259 dprintk("%s ", server->data);
3260 if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS)
3264 dprintk("%s: using first %u of %u servers "
3265 "returned for location %u\n",
3267 NFS4_FS_LOCATION_MAXSERVERS,
3268 m, res->nlocations);
3269 for (i = loc->nservers; i < m; i++) {
3272 status = decode_opaque_inline(xdr, &len, &data);
3273 if (unlikely(status != 0))
3278 status = decode_pathname(xdr, &loc->rootpath);
3279 if (unlikely(status != 0))
3281 if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES)
3284 if (res->nlocations != 0)
3285 status = NFS_ATTR_FATTR_V4_REFERRAL;
3287 dprintk("%s: fs_locations done, error = %d\n", __func__, status);
3290 print_overflow_msg(__func__, xdr);
3296 static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3302 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
3304 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
3305 p = xdr_inline_decode(xdr, 8);
3308 xdr_decode_hyper(p, res);
3309 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
3311 dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res);
3314 print_overflow_msg(__func__, xdr);
3318 static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
3324 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
3326 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
3327 p = xdr_inline_decode(xdr, 4);
3330 *maxlink = be32_to_cpup(p);
3331 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
3333 dprintk("%s: maxlink=%u\n", __func__, *maxlink);
3336 print_overflow_msg(__func__, xdr);
3340 static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
3346 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
3348 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
3349 p = xdr_inline_decode(xdr, 4);
3352 *maxname = be32_to_cpup(p);
3353 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
3355 dprintk("%s: maxname=%u\n", __func__, *maxname);
3358 print_overflow_msg(__func__, xdr);
3362 static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3368 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
3370 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
3372 p = xdr_inline_decode(xdr, 8);
3375 xdr_decode_hyper(p, &maxread);
3376 if (maxread > 0x7FFFFFFF)
3377 maxread = 0x7FFFFFFF;
3378 *res = (uint32_t)maxread;
3379 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
3381 dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res);
3384 print_overflow_msg(__func__, xdr);
3388 static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3394 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
3396 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
3398 p = xdr_inline_decode(xdr, 8);
3401 xdr_decode_hyper(p, &maxwrite);
3402 if (maxwrite > 0x7FFFFFFF)
3403 maxwrite = 0x7FFFFFFF;
3404 *res = (uint32_t)maxwrite;
3405 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
3407 dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res);
3410 print_overflow_msg(__func__, xdr);
3414 static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode)
3421 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
3423 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
3424 p = xdr_inline_decode(xdr, 4);
3427 tmp = be32_to_cpup(p);
3428 *mode = tmp & ~S_IFMT;
3429 bitmap[1] &= ~FATTR4_WORD1_MODE;
3430 ret = NFS_ATTR_FATTR_MODE;
3432 dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode);
3435 print_overflow_msg(__func__, xdr);
3439 static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
3445 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
3447 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
3448 p = xdr_inline_decode(xdr, 4);
3451 *nlink = be32_to_cpup(p);
3452 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
3453 ret = NFS_ATTR_FATTR_NLINK;
3455 dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink);
3458 print_overflow_msg(__func__, xdr);
3462 static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
3463 struct nfs_client *clp, uint32_t *uid, int may_sleep)
3470 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
3472 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
3473 p = xdr_inline_decode(xdr, 4);
3476 len = be32_to_cpup(p);
3477 p = xdr_inline_decode(xdr, len);
3482 } else if (len < XDR_MAX_NETOBJ) {
3483 if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0)
3484 ret = NFS_ATTR_FATTR_OWNER;
3486 dprintk("%s: nfs_map_name_to_uid failed!\n",
3489 dprintk("%s: name too long (%u)!\n",
3491 bitmap[1] &= ~FATTR4_WORD1_OWNER;
3493 dprintk("%s: uid=%d\n", __func__, (int)*uid);
3496 print_overflow_msg(__func__, xdr);
3500 static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
3501 struct nfs_client *clp, uint32_t *gid, int may_sleep)
3508 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
3510 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
3511 p = xdr_inline_decode(xdr, 4);
3514 len = be32_to_cpup(p);
3515 p = xdr_inline_decode(xdr, len);
3520 } else if (len < XDR_MAX_NETOBJ) {
3521 if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0)
3522 ret = NFS_ATTR_FATTR_GROUP;
3524 dprintk("%s: nfs_map_group_to_gid failed!\n",
3527 dprintk("%s: name too long (%u)!\n",
3529 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
3531 dprintk("%s: gid=%d\n", __func__, (int)*gid);
3534 print_overflow_msg(__func__, xdr);
3538 static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
3540 uint32_t major = 0, minor = 0;
3545 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
3547 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
3550 p = xdr_inline_decode(xdr, 8);
3553 major = be32_to_cpup(p++);
3554 minor = be32_to_cpup(p);
3555 tmp = MKDEV(major, minor);
3556 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
3558 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
3559 ret = NFS_ATTR_FATTR_RDEV;
3561 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor);
3564 print_overflow_msg(__func__, xdr);
3568 static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3574 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
3576 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
3577 p = xdr_inline_decode(xdr, 8);
3580 xdr_decode_hyper(p, res);
3581 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
3583 dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res);
3586 print_overflow_msg(__func__, xdr);
3590 static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3596 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
3598 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
3599 p = xdr_inline_decode(xdr, 8);
3602 xdr_decode_hyper(p, res);
3603 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
3605 dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res);
3608 print_overflow_msg(__func__, xdr);
3612 static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3618 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
3620 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
3621 p = xdr_inline_decode(xdr, 8);
3624 xdr_decode_hyper(p, res);
3625 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
3627 dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res);
3630 print_overflow_msg(__func__, xdr);
3634 static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
3640 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
3642 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
3643 p = xdr_inline_decode(xdr, 8);
3646 xdr_decode_hyper(p, used);
3647 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
3648 ret = NFS_ATTR_FATTR_SPACE_USED;
3650 dprintk("%s: space used=%Lu\n", __func__,
3651 (unsigned long long)*used);
3654 print_overflow_msg(__func__, xdr);
3658 static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
3664 p = xdr_inline_decode(xdr, 12);
3667 p = xdr_decode_hyper(p, &sec);
3668 nsec = be32_to_cpup(p);
3669 time->tv_sec = (time_t)sec;
3670 time->tv_nsec = (long)nsec;
3673 print_overflow_msg(__func__, xdr);
3677 static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
3683 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
3685 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
3686 status = decode_attr_time(xdr, time);
3688 status = NFS_ATTR_FATTR_ATIME;
3689 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
3691 dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec);
3695 static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
3701 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
3703 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
3704 status = decode_attr_time(xdr, time);
3706 status = NFS_ATTR_FATTR_CTIME;
3707 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
3709 dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec);
3713 static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap,
3714 struct timespec *time)
3720 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U)))
3722 if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) {
3723 status = decode_attr_time(xdr, time);
3724 bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA;
3726 dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec,
3727 (long)time->tv_nsec);
3731 static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
3737 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
3739 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
3740 status = decode_attr_time(xdr, time);
3742 status = NFS_ATTR_FATTR_MTIME;
3743 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
3745 dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec);
3749 static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen)
3751 unsigned int attrwords = XDR_QUADLEN(attrlen);
3752 unsigned int nwords = xdr->p - savep;
3754 if (unlikely(attrwords != nwords)) {
3755 dprintk("%s: server returned incorrect attribute length: "
3759 (attrwords < nwords) ? '<' : '>',
3766 static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3770 p = xdr_inline_decode(xdr, 20);
3773 cinfo->atomic = be32_to_cpup(p++);
3774 p = xdr_decode_hyper(p, &cinfo->before);
3775 xdr_decode_hyper(p, &cinfo->after);
3778 print_overflow_msg(__func__, xdr);
3782 static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
3788 status = decode_op_hdr(xdr, OP_ACCESS);
3791 p = xdr_inline_decode(xdr, 8);
3794 supp = be32_to_cpup(p++);
3795 acc = be32_to_cpup(p);
3796 access->supported = supp;
3797 access->access = acc;
3800 print_overflow_msg(__func__, xdr);
3804 static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len)
3808 p = xdr_inline_decode(xdr, len);
3810 memcpy(buf, p, len);
3813 print_overflow_msg(__func__, xdr);
3817 static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
3819 return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE);
3822 static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
3826 status = decode_op_hdr(xdr, OP_CLOSE);
3828 nfs_increment_open_seqid(status, res->seqid);
3830 status = decode_stateid(xdr, &res->stateid);
3834 static int decode_verifier(struct xdr_stream *xdr, void *verifier)
3836 return decode_opaque_fixed(xdr, verifier, 8);
3839 static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
3843 status = decode_op_hdr(xdr, OP_COMMIT);
3845 status = decode_verifier(xdr, res->verf->verifier);
3849 static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3855 status = decode_op_hdr(xdr, OP_CREATE);
3858 if ((status = decode_change_info(xdr, cinfo)))
3860 p = xdr_inline_decode(xdr, 4);
3863 bmlen = be32_to_cpup(p);
3864 p = xdr_inline_decode(xdr, bmlen << 2);
3868 print_overflow_msg(__func__, xdr);
3872 static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
3875 uint32_t attrlen, bitmap[2] = {0};
3878 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3880 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3882 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3884 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
3886 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
3888 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
3890 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
3892 status = verify_attr_len(xdr, savep, attrlen);
3894 dprintk("%s: xdr returned %d!\n", __func__, -status);
3898 static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
3901 uint32_t attrlen, bitmap[2] = {0};
3904 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3906 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3908 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3911 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
3913 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
3915 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
3917 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
3919 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
3921 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
3924 status = verify_attr_len(xdr, savep, attrlen);
3926 dprintk("%s: xdr returned %d!\n", __func__, -status);
3930 static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
3933 uint32_t attrlen, bitmap[2] = {0};
3936 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
3938 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
3940 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
3943 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
3945 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
3948 status = verify_attr_len(xdr, savep, attrlen);
3950 dprintk("%s: xdr returned %d!\n", __func__, -status);
3954 static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap,
3955 struct nfs_fattr *fattr, struct nfs_fh *fh,
3956 const struct nfs_server *server, int may_sleep)
3963 status = decode_attr_type(xdr, bitmap, &type);
3968 fattr->mode |= nfs_type2fmt[type];
3969 fattr->valid |= status;
3972 status = decode_attr_change(xdr, bitmap, &fattr->change_attr);
3975 fattr->valid |= status;
3977 status = decode_attr_size(xdr, bitmap, &fattr->size);
3980 fattr->valid |= status;
3982 status = decode_attr_fsid(xdr, bitmap, &fattr->fsid);
3985 fattr->valid |= status;
3987 status = decode_attr_error(xdr, bitmap);
3991 status = decode_attr_filehandle(xdr, bitmap, fh);
3995 status = decode_attr_fileid(xdr, bitmap, &fattr->fileid);
3998 fattr->valid |= status;
4000 status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr,
4001 struct nfs4_fs_locations,
4005 fattr->valid |= status;
4007 status = decode_attr_mode(xdr, bitmap, &fmode);
4011 fattr->mode |= fmode;
4012 fattr->valid |= status;
4015 status = decode_attr_nlink(xdr, bitmap, &fattr->nlink);
4018 fattr->valid |= status;
4020 status = decode_attr_owner(xdr, bitmap, server->nfs_client,
4021 &fattr->uid, may_sleep);
4024 fattr->valid |= status;
4026 status = decode_attr_group(xdr, bitmap, server->nfs_client,
4027 &fattr->gid, may_sleep);
4030 fattr->valid |= status;
4032 status = decode_attr_rdev(xdr, bitmap, &fattr->rdev);
4035 fattr->valid |= status;
4037 status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used);
4040 fattr->valid |= status;
4042 status = decode_attr_time_access(xdr, bitmap, &fattr->atime);
4045 fattr->valid |= status;
4047 status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime);
4050 fattr->valid |= status;
4052 status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime);
4055 fattr->valid |= status;
4057 status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid);
4060 if (status != 0 && !(fattr->valid & status)) {
4061 fattr->fileid = fileid;
4062 fattr->valid |= status;
4066 dprintk("%s: xdr returned %d\n", __func__, -status);
4070 static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr,
4071 struct nfs_fh *fh, const struct nfs_server *server, int may_sleep)
4078 status = decode_op_hdr(xdr, OP_GETATTR);
4082 status = decode_attr_bitmap(xdr, bitmap);
4086 status = decode_attr_length(xdr, &attrlen, &savep);
4090 status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, server, may_sleep);
4094 status = verify_attr_len(xdr, savep, attrlen);
4096 dprintk("%s: xdr returned %d\n", __func__, -status);
4100 static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr,
4101 const struct nfs_server *server, int may_sleep)
4103 return decode_getfattr_generic(xdr, fattr, NULL, server, may_sleep);
4107 * Decode potentially multiple layout types. Currently we only support
4108 * one layout driver per file system.
4110 static int decode_first_pnfs_layout_type(struct xdr_stream *xdr,
4111 uint32_t *layouttype)
4116 p = xdr_inline_decode(xdr, 4);
4119 num = be32_to_cpup(p);
4121 /* pNFS is not supported by the underlying file system */
4127 printk(KERN_INFO "%s: Warning: Multiple pNFS layout drivers "
4128 "per filesystem not supported\n", __func__);
4130 /* Decode and set first layout type, move xdr->p past unused types */
4131 p = xdr_inline_decode(xdr, num * 4);
4134 *layouttype = be32_to_cpup(p);
4137 print_overflow_msg(__func__, xdr);
4142 * The type of file system exported.
4143 * Note we must ensure that layouttype is set in any non-error case.
4145 static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap,
4146 uint32_t *layouttype)
4150 dprintk("%s: bitmap is %x\n", __func__, bitmap[1]);
4151 if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U)))
4153 if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) {
4154 status = decode_first_pnfs_layout_type(xdr, layouttype);
4155 bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES;
4161 static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
4164 uint32_t attrlen, bitmap[2];
4167 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4169 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4171 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4174 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
4176 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
4178 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
4180 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
4182 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
4183 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
4185 fsinfo->wtpref = fsinfo->wtmax;
4186 status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta);
4189 status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype);
4193 status = verify_attr_len(xdr, savep, attrlen);
4195 dprintk("%s: xdr returned %d!\n", __func__, -status);
4199 static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
4205 /* Zero handle first to allow comparisons */
4206 memset(fh, 0, sizeof(*fh));
4208 status = decode_op_hdr(xdr, OP_GETFH);
4212 p = xdr_inline_decode(xdr, 4);
4215 len = be32_to_cpup(p);
4216 if (len > NFS4_FHSIZE)
4219 p = xdr_inline_decode(xdr, len);
4222 memcpy(fh->data, p, len);
4225 print_overflow_msg(__func__, xdr);
4229 static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4233 status = decode_op_hdr(xdr, OP_LINK);
4236 return decode_change_info(xdr, cinfo);
4240 * We create the owner, so we know a proper owner.id length is 4.
4242 static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
4244 uint64_t offset, length, clientid;
4246 uint32_t namelen, type;
4248 p = xdr_inline_decode(xdr, 32); /* read 32 bytes */
4251 p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */
4252 p = xdr_decode_hyper(p, &length);
4253 type = be32_to_cpup(p++); /* 4 byte read */
4254 if (fl != NULL) { /* manipulate file lock */
4255 fl->fl_start = (loff_t)offset;
4256 fl->fl_end = fl->fl_start + (loff_t)length - 1;
4257 if (length == ~(uint64_t)0)
4258 fl->fl_end = OFFSET_MAX;
4259 fl->fl_type = F_WRLCK;
4261 fl->fl_type = F_RDLCK;
4264 p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */
4265 namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */
4266 p = xdr_inline_decode(xdr, namelen); /* variable size field */
4268 return -NFS4ERR_DENIED;
4270 print_overflow_msg(__func__, xdr);
4274 static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res)
4278 status = decode_op_hdr(xdr, OP_LOCK);
4282 status = decode_stateid(xdr, &res->stateid);
4283 if (unlikely(status))
4285 } else if (status == -NFS4ERR_DENIED)
4286 status = decode_lock_denied(xdr, NULL);
4287 if (res->open_seqid != NULL)
4288 nfs_increment_open_seqid(status, res->open_seqid);
4289 nfs_increment_lock_seqid(status, res->lock_seqid);
4294 static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res)
4297 status = decode_op_hdr(xdr, OP_LOCKT);
4298 if (status == -NFS4ERR_DENIED)
4299 return decode_lock_denied(xdr, res->denied);
4303 static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
4307 status = decode_op_hdr(xdr, OP_LOCKU);
4309 nfs_increment_lock_seqid(status, res->seqid);
4311 status = decode_stateid(xdr, &res->stateid);
4315 static int decode_release_lockowner(struct xdr_stream *xdr)
4317 return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER);
4320 static int decode_lookup(struct xdr_stream *xdr)
4322 return decode_op_hdr(xdr, OP_LOOKUP);
4325 /* This is too sick! */
4326 static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
4329 uint32_t limit_type, nblocks, blocksize;
4331 p = xdr_inline_decode(xdr, 12);
4334 limit_type = be32_to_cpup(p++);
4335 switch (limit_type) {
4337 xdr_decode_hyper(p, maxsize);
4340 nblocks = be32_to_cpup(p++);
4341 blocksize = be32_to_cpup(p);
4342 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
4346 print_overflow_msg(__func__, xdr);
4350 static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
4353 uint32_t delegation_type;
4356 p = xdr_inline_decode(xdr, 4);
4359 delegation_type = be32_to_cpup(p);
4360 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
4361 res->delegation_type = 0;
4364 status = decode_stateid(xdr, &res->delegation);
4365 if (unlikely(status))
4367 p = xdr_inline_decode(xdr, 4);
4370 res->do_recall = be32_to_cpup(p);
4372 switch (delegation_type) {
4373 case NFS4_OPEN_DELEGATE_READ:
4374 res->delegation_type = FMODE_READ;
4376 case NFS4_OPEN_DELEGATE_WRITE:
4377 res->delegation_type = FMODE_WRITE|FMODE_READ;
4378 if (decode_space_limit(xdr, &res->maxsize) < 0)
4381 return decode_ace(xdr, NULL, res->server->nfs_client);
4383 print_overflow_msg(__func__, xdr);
4387 static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
4390 uint32_t savewords, bmlen, i;
4393 status = decode_op_hdr(xdr, OP_OPEN);
4395 nfs_increment_open_seqid(status, res->seqid);
4397 status = decode_stateid(xdr, &res->stateid);
4398 if (unlikely(status))
4401 decode_change_info(xdr, &res->cinfo);
4403 p = xdr_inline_decode(xdr, 8);
4406 res->rflags = be32_to_cpup(p++);
4407 bmlen = be32_to_cpup(p);
4411 p = xdr_inline_decode(xdr, bmlen << 2);
4414 savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE);
4415 for (i = 0; i < savewords; ++i)
4416 res->attrset[i] = be32_to_cpup(p++);
4417 for (; i < NFS4_BITMAP_SIZE; i++)
4418 res->attrset[i] = 0;
4420 return decode_delegation(xdr, res);
4422 dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen);
4425 print_overflow_msg(__func__, xdr);
4429 static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
4433 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
4435 nfs_increment_open_seqid(status, res->seqid);
4437 status = decode_stateid(xdr, &res->stateid);
4441 static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
4445 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
4447 nfs_increment_open_seqid(status, res->seqid);
4449 status = decode_stateid(xdr, &res->stateid);
4453 static int decode_putfh(struct xdr_stream *xdr)
4455 return decode_op_hdr(xdr, OP_PUTFH);
4458 static int decode_putrootfh(struct xdr_stream *xdr)
4460 return decode_op_hdr(xdr, OP_PUTROOTFH);
4463 static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res)
4465 struct kvec *iov = req->rq_rcv_buf.head;
4467 uint32_t count, eof, recvd, hdrlen;
4470 status = decode_op_hdr(xdr, OP_READ);
4473 p = xdr_inline_decode(xdr, 8);
4476 eof = be32_to_cpup(p++);
4477 count = be32_to_cpup(p);
4478 hdrlen = (u8 *) p - (u8 *) iov->iov_base;
4479 recvd = req->rq_rcv_buf.len - hdrlen;
4480 if (count > recvd) {
4481 dprintk("NFS: server cheating in read reply: "
4482 "count %u > recvd %u\n", count, recvd);
4486 xdr_read_pages(xdr, count);
4491 print_overflow_msg(__func__, xdr);
4495 static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
4497 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
4498 struct kvec *iov = rcvbuf->head;
4500 u32 recvd, pglen = rcvbuf->page_len;
4503 status = decode_op_hdr(xdr, OP_READDIR);
4505 status = decode_verifier(xdr, readdir->verifier.data);
4506 if (unlikely(status))
4508 dprintk("%s: verifier = %08x:%08x\n",
4510 ((u32 *)readdir->verifier.data)[0],
4511 ((u32 *)readdir->verifier.data)[1]);
4514 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
4515 recvd = rcvbuf->len - hdrlen;
4518 xdr_read_pages(xdr, pglen);
4524 static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
4526 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
4527 struct kvec *iov = rcvbuf->head;
4533 status = decode_op_hdr(xdr, OP_READLINK);
4537 /* Convert length of symlink */
4538 p = xdr_inline_decode(xdr, 4);
4541 len = be32_to_cpup(p);
4542 if (len >= rcvbuf->page_len || len <= 0) {
4543 dprintk("nfs: server returned giant symlink!\n");
4544 return -ENAMETOOLONG;
4546 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
4547 recvd = req->rq_rcv_buf.len - hdrlen;
4549 dprintk("NFS: server cheating in readlink reply: "
4550 "count %u > recvd %u\n", len, recvd);
4553 xdr_read_pages(xdr, len);
4555 * The XDR encode routine has set things up so that
4556 * the link text will be copied directly into the
4557 * buffer. We just have to do overflow-checking,
4558 * and and null-terminate the text (the VFS expects
4559 * null-termination).
4561 xdr_terminate_string(rcvbuf, len);
4564 print_overflow_msg(__func__, xdr);
4568 static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4572 status = decode_op_hdr(xdr, OP_REMOVE);
4575 status = decode_change_info(xdr, cinfo);
4580 static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
4581 struct nfs4_change_info *new_cinfo)
4585 status = decode_op_hdr(xdr, OP_RENAME);
4588 if ((status = decode_change_info(xdr, old_cinfo)))
4590 status = decode_change_info(xdr, new_cinfo);
4595 static int decode_renew(struct xdr_stream *xdr)
4597 return decode_op_hdr(xdr, OP_RENEW);
4601 decode_restorefh(struct xdr_stream *xdr)
4603 return decode_op_hdr(xdr, OP_RESTOREFH);
4606 static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
4612 struct kvec *iov = req->rq_rcv_buf.head;
4616 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4618 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4620 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4623 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
4625 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
4629 /* We ignore &savep and don't do consistency checks on
4630 * the attr length. Let userspace figure it out.... */
4631 hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base;
4632 recvd = req->rq_rcv_buf.len - hdrlen;
4633 if (attrlen > recvd) {
4634 dprintk("NFS: server cheating in getattr"
4635 " acl reply: attrlen %u > recvd %u\n",
4639 xdr_read_pages(xdr, attrlen);
4642 status = -EOPNOTSUPP;
4649 decode_savefh(struct xdr_stream *xdr)
4651 return decode_op_hdr(xdr, OP_SAVEFH);
4654 static int decode_setattr(struct xdr_stream *xdr)
4660 status = decode_op_hdr(xdr, OP_SETATTR);
4663 p = xdr_inline_decode(xdr, 4);
4666 bmlen = be32_to_cpup(p);
4667 p = xdr_inline_decode(xdr, bmlen << 2);
4671 print_overflow_msg(__func__, xdr);
4675 static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res)
4681 p = xdr_inline_decode(xdr, 8);
4684 opnum = be32_to_cpup(p++);
4685 if (opnum != OP_SETCLIENTID) {
4686 dprintk("nfs: decode_setclientid: Server returned operation"
4690 nfserr = be32_to_cpup(p);
4691 if (nfserr == NFS_OK) {
4692 p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE);
4695 p = xdr_decode_hyper(p, &res->clientid);
4696 memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE);
4697 } else if (nfserr == NFSERR_CLID_INUSE) {
4700 /* skip netid string */
4701 p = xdr_inline_decode(xdr, 4);
4704 len = be32_to_cpup(p);
4705 p = xdr_inline_decode(xdr, len);
4709 /* skip uaddr string */
4710 p = xdr_inline_decode(xdr, 4);
4713 len = be32_to_cpup(p);
4714 p = xdr_inline_decode(xdr, len);
4717 return -NFSERR_CLID_INUSE;
4719 return nfs4_stat_to_errno(nfserr);
4723 print_overflow_msg(__func__, xdr);
4727 static int decode_setclientid_confirm(struct xdr_stream *xdr)
4729 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
4732 static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
4737 status = decode_op_hdr(xdr, OP_WRITE);
4741 p = xdr_inline_decode(xdr, 16);
4744 res->count = be32_to_cpup(p++);
4745 res->verf->committed = be32_to_cpup(p++);
4746 memcpy(res->verf->verifier, p, 8);
4749 print_overflow_msg(__func__, xdr);
4753 static int decode_delegreturn(struct xdr_stream *xdr)
4755 return decode_op_hdr(xdr, OP_DELEGRETURN);
4758 #if defined(CONFIG_NFS_V4_1)
4759 static int decode_exchange_id(struct xdr_stream *xdr,
4760 struct nfs41_exchange_id_res *res)
4766 struct nfs_client *clp = res->client;
4768 status = decode_op_hdr(xdr, OP_EXCHANGE_ID);
4772 p = xdr_inline_decode(xdr, 8);
4775 xdr_decode_hyper(p, &clp->cl_ex_clid);
4776 p = xdr_inline_decode(xdr, 12);
4779 clp->cl_seqid = be32_to_cpup(p++);
4780 clp->cl_exchange_flags = be32_to_cpup(p++);
4782 /* We ask for SP4_NONE */
4783 dummy = be32_to_cpup(p);
4784 if (dummy != SP4_NONE)
4787 /* Throw away minor_id */
4788 p = xdr_inline_decode(xdr, 8);
4792 /* Throw away Major id */
4793 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4794 if (unlikely(status))
4797 /* Throw away server_scope */
4798 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4799 if (unlikely(status))
4802 /* Throw away Implementation id array */
4803 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4804 if (unlikely(status))
4809 print_overflow_msg(__func__, xdr);
4813 static int decode_chan_attrs(struct xdr_stream *xdr,
4814 struct nfs4_channel_attrs *attrs)
4819 p = xdr_inline_decode(xdr, 28);
4822 attrs->headerpadsz = be32_to_cpup(p++);
4823 attrs->max_rqst_sz = be32_to_cpup(p++);
4824 attrs->max_resp_sz = be32_to_cpup(p++);
4825 attrs->max_resp_sz_cached = be32_to_cpup(p++);
4826 attrs->max_ops = be32_to_cpup(p++);
4827 attrs->max_reqs = be32_to_cpup(p++);
4828 nr_attrs = be32_to_cpup(p);
4829 if (unlikely(nr_attrs > 1)) {
4830 printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n",
4831 __func__, nr_attrs);
4834 if (nr_attrs == 1) {
4835 p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */
4841 print_overflow_msg(__func__, xdr);
4845 static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid)
4847 return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN);
4850 static int decode_create_session(struct xdr_stream *xdr,
4851 struct nfs41_create_session_res *res)
4855 struct nfs_client *clp = res->client;
4856 struct nfs4_session *session = clp->cl_session;
4858 status = decode_op_hdr(xdr, OP_CREATE_SESSION);
4860 status = decode_sessionid(xdr, &session->sess_id);
4861 if (unlikely(status))
4865 p = xdr_inline_decode(xdr, 8);
4868 clp->cl_seqid = be32_to_cpup(p++);
4869 session->flags = be32_to_cpup(p);
4871 /* Channel attributes */
4872 status = decode_chan_attrs(xdr, &session->fc_attrs);
4874 status = decode_chan_attrs(xdr, &session->bc_attrs);
4877 print_overflow_msg(__func__, xdr);
4881 static int decode_destroy_session(struct xdr_stream *xdr, void *dummy)
4883 return decode_op_hdr(xdr, OP_DESTROY_SESSION);
4886 static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy)
4888 return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE);
4890 #endif /* CONFIG_NFS_V4_1 */
4892 static int decode_sequence(struct xdr_stream *xdr,
4893 struct nfs4_sequence_res *res,
4894 struct rpc_rqst *rqstp)
4896 #if defined(CONFIG_NFS_V4_1)
4897 struct nfs4_sessionid id;
4902 if (!res->sr_session)
4905 status = decode_op_hdr(xdr, OP_SEQUENCE);
4907 status = decode_sessionid(xdr, &id);
4908 if (unlikely(status))
4912 * If the server returns different values for sessionID, slotID or
4913 * sequence number, the server is looney tunes.
4915 status = -EREMOTEIO;
4917 if (memcmp(id.data, res->sr_session->sess_id.data,
4918 NFS4_MAX_SESSIONID_LEN)) {
4919 dprintk("%s Invalid session id\n", __func__);
4923 p = xdr_inline_decode(xdr, 20);
4928 dummy = be32_to_cpup(p++);
4929 if (dummy != res->sr_slot->seq_nr) {
4930 dprintk("%s Invalid sequence number\n", __func__);
4934 dummy = be32_to_cpup(p++);
4935 if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) {
4936 dprintk("%s Invalid slot id\n", __func__);
4939 /* highest slot id - currently not processed */
4940 dummy = be32_to_cpup(p++);
4941 /* target highest slot id - currently not processed */
4942 dummy = be32_to_cpup(p++);
4944 res->sr_status_flags = be32_to_cpup(p);
4947 res->sr_status = status;
4950 print_overflow_msg(__func__, xdr);
4953 #else /* CONFIG_NFS_V4_1 */
4955 #endif /* CONFIG_NFS_V4_1 */
4958 #if defined(CONFIG_NFS_V4_1)
4960 static int decode_getdeviceinfo(struct xdr_stream *xdr,
4961 struct pnfs_device *pdev)
4967 status = decode_op_hdr(xdr, OP_GETDEVICEINFO);
4969 if (status == -ETOOSMALL) {
4970 p = xdr_inline_decode(xdr, 4);
4973 pdev->mincount = be32_to_cpup(p);
4974 dprintk("%s: Min count too small. mincnt = %u\n",
4975 __func__, pdev->mincount);
4980 p = xdr_inline_decode(xdr, 8);
4983 type = be32_to_cpup(p++);
4984 if (type != pdev->layout_type) {
4985 dprintk("%s: layout mismatch req: %u pdev: %u\n",
4986 __func__, pdev->layout_type, type);
4990 * Get the length of the opaque device_addr4. xdr_read_pages places
4991 * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages)
4992 * and places the remaining xdr data in xdr_buf->tail
4994 pdev->mincount = be32_to_cpup(p);
4995 xdr_read_pages(xdr, pdev->mincount); /* include space for the length */
4997 /* Parse notification bitmap, verifying that it is zero. */
4998 p = xdr_inline_decode(xdr, 4);
5001 len = be32_to_cpup(p);
5005 p = xdr_inline_decode(xdr, 4 * len);
5008 for (i = 0; i < len; i++, p++) {
5009 if (be32_to_cpup(p)) {
5010 dprintk("%s: notifications not supported\n",
5018 print_overflow_msg(__func__, xdr);
5022 static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
5023 struct nfs4_layoutget_res *res)
5029 status = decode_op_hdr(xdr, OP_LAYOUTGET);
5032 p = xdr_inline_decode(xdr, 8 + NFS4_STATEID_SIZE);
5035 res->return_on_close = be32_to_cpup(p++);
5036 p = xdr_decode_opaque_fixed(p, res->stateid.data, NFS4_STATEID_SIZE);
5037 layout_count = be32_to_cpup(p);
5038 if (!layout_count) {
5039 dprintk("%s: server responded with empty layout array\n",
5044 p = xdr_inline_decode(xdr, 24);
5047 p = xdr_decode_hyper(p, &res->range.offset);
5048 p = xdr_decode_hyper(p, &res->range.length);
5049 res->range.iomode = be32_to_cpup(p++);
5050 res->type = be32_to_cpup(p++);
5052 status = decode_opaque_inline(xdr, &res->layout.len, (char **)&p);
5053 if (unlikely(status))
5056 dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n",
5058 (unsigned long)res->range.offset,
5059 (unsigned long)res->range.length,
5064 /* nfs4_proc_layoutget allocated a single page */
5065 if (res->layout.len > PAGE_SIZE)
5067 memcpy(res->layout.buf, p, res->layout.len);
5069 if (layout_count > 1) {
5070 /* We only handle a length one array at the moment. Any
5071 * further entries are just ignored. Note that this means
5072 * the client may see a response that is less than the
5073 * minimum it requested.
5075 dprintk("%s: server responded with %d layouts, dropping tail\n",
5076 __func__, layout_count);
5081 print_overflow_msg(__func__, xdr);
5084 #endif /* CONFIG_NFS_V4_1 */
5087 * END OF "GENERIC" DECODE ROUTINES.
5091 * Decode OPEN_DOWNGRADE response
5093 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res)
5095 struct xdr_stream xdr;
5096 struct compound_hdr hdr;
5099 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5100 status = decode_compound_hdr(&xdr, &hdr);
5103 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5106 status = decode_putfh(&xdr);
5109 status = decode_open_downgrade(&xdr, res);
5112 decode_getfattr(&xdr, res->fattr, res->server,
5113 !RPC_IS_ASYNC(rqstp->rq_task));
5119 * Decode ACCESS response
5121 static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res)
5123 struct xdr_stream xdr;
5124 struct compound_hdr hdr;
5127 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5128 status = decode_compound_hdr(&xdr, &hdr);
5131 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5134 status = decode_putfh(&xdr);
5137 status = decode_access(&xdr, res);
5140 decode_getfattr(&xdr, res->fattr, res->server,
5141 !RPC_IS_ASYNC(rqstp->rq_task));
5147 * Decode LOOKUP response
5149 static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res)
5151 struct xdr_stream xdr;
5152 struct compound_hdr hdr;
5155 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5156 status = decode_compound_hdr(&xdr, &hdr);
5159 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5162 if ((status = decode_putfh(&xdr)) != 0)
5164 if ((status = decode_lookup(&xdr)) != 0)
5166 if ((status = decode_getfh(&xdr, res->fh)) != 0)
5168 status = decode_getfattr(&xdr, res->fattr, res->server
5169 ,!RPC_IS_ASYNC(rqstp->rq_task));
5175 * Decode LOOKUP_ROOT response
5177 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res)
5179 struct xdr_stream xdr;
5180 struct compound_hdr hdr;
5183 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5184 status = decode_compound_hdr(&xdr, &hdr);
5187 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5190 if ((status = decode_putrootfh(&xdr)) != 0)
5192 if ((status = decode_getfh(&xdr, res->fh)) == 0)
5193 status = decode_getfattr(&xdr, res->fattr, res->server,
5194 !RPC_IS_ASYNC(rqstp->rq_task));
5200 * Decode REMOVE response
5202 static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res)
5204 struct xdr_stream xdr;
5205 struct compound_hdr hdr;
5208 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5209 status = decode_compound_hdr(&xdr, &hdr);
5212 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5215 if ((status = decode_putfh(&xdr)) != 0)
5217 if ((status = decode_remove(&xdr, &res->cinfo)) != 0)
5219 decode_getfattr(&xdr, res->dir_attr, res->server,
5220 !RPC_IS_ASYNC(rqstp->rq_task));
5226 * Decode RENAME response
5228 static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs_renameres *res)
5230 struct xdr_stream xdr;
5231 struct compound_hdr hdr;
5234 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5235 status = decode_compound_hdr(&xdr, &hdr);
5238 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5241 if ((status = decode_putfh(&xdr)) != 0)
5243 if ((status = decode_savefh(&xdr)) != 0)
5245 if ((status = decode_putfh(&xdr)) != 0)
5247 if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0)
5249 /* Current FH is target directory */
5250 if (decode_getfattr(&xdr, res->new_fattr, res->server,
5251 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
5253 if ((status = decode_restorefh(&xdr)) != 0)
5255 decode_getfattr(&xdr, res->old_fattr, res->server,
5256 !RPC_IS_ASYNC(rqstp->rq_task));
5262 * Decode LINK response
5264 static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res)
5266 struct xdr_stream xdr;
5267 struct compound_hdr hdr;
5270 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5271 status = decode_compound_hdr(&xdr, &hdr);
5274 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5277 if ((status = decode_putfh(&xdr)) != 0)
5279 if ((status = decode_savefh(&xdr)) != 0)
5281 if ((status = decode_putfh(&xdr)) != 0)
5283 if ((status = decode_link(&xdr, &res->cinfo)) != 0)
5286 * Note order: OP_LINK leaves the directory as the current
5289 if (decode_getfattr(&xdr, res->dir_attr, res->server,
5290 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
5292 if ((status = decode_restorefh(&xdr)) != 0)
5294 decode_getfattr(&xdr, res->fattr, res->server,
5295 !RPC_IS_ASYNC(rqstp->rq_task));
5301 * Decode CREATE response
5303 static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res)
5305 struct xdr_stream xdr;
5306 struct compound_hdr hdr;
5309 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5310 status = decode_compound_hdr(&xdr, &hdr);
5313 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5316 if ((status = decode_putfh(&xdr)) != 0)
5318 if ((status = decode_savefh(&xdr)) != 0)
5320 if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0)
5322 if ((status = decode_getfh(&xdr, res->fh)) != 0)
5324 if (decode_getfattr(&xdr, res->fattr, res->server,
5325 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
5327 if ((status = decode_restorefh(&xdr)) != 0)
5329 decode_getfattr(&xdr, res->dir_fattr, res->server,
5330 !RPC_IS_ASYNC(rqstp->rq_task));
5336 * Decode SYMLINK response
5338 static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res)
5340 return nfs4_xdr_dec_create(rqstp, p, res);
5344 * Decode GETATTR response
5346 static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res)
5348 struct xdr_stream xdr;
5349 struct compound_hdr hdr;
5352 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5353 status = decode_compound_hdr(&xdr, &hdr);
5356 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5359 status = decode_putfh(&xdr);
5362 status = decode_getfattr(&xdr, res->fattr, res->server,
5363 !RPC_IS_ASYNC(rqstp->rq_task));
5369 * Encode an SETACL request
5372 nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args)
5374 struct xdr_stream xdr;
5375 struct compound_hdr hdr = {
5376 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
5380 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
5381 encode_compound_hdr(&xdr, req, &hdr);
5382 encode_sequence(&xdr, &args->seq_args, &hdr);
5383 encode_putfh(&xdr, args->fh, &hdr);
5384 status = encode_setacl(&xdr, args, &hdr);
5390 * Decode SETACL response
5393 nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p,
5394 struct nfs_setaclres *res)
5396 struct xdr_stream xdr;
5397 struct compound_hdr hdr;
5400 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5401 status = decode_compound_hdr(&xdr, &hdr);
5404 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5407 status = decode_putfh(&xdr);
5410 status = decode_setattr(&xdr);
5416 * Decode GETACL response
5419 nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p,
5420 struct nfs_getaclres *res)
5422 struct xdr_stream xdr;
5423 struct compound_hdr hdr;
5426 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5427 status = decode_compound_hdr(&xdr, &hdr);
5430 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5433 status = decode_putfh(&xdr);
5436 status = decode_getacl(&xdr, rqstp, &res->acl_len);
5443 * Decode CLOSE response
5445 static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res)
5447 struct xdr_stream xdr;
5448 struct compound_hdr hdr;
5451 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5452 status = decode_compound_hdr(&xdr, &hdr);
5455 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5458 status = decode_putfh(&xdr);
5461 status = decode_close(&xdr, res);
5465 * Note: Server may do delete on close for this file
5466 * in which case the getattr call will fail with
5467 * an ESTALE error. Shouldn't be a problem,
5468 * though, since fattr->valid will remain unset.
5470 decode_getfattr(&xdr, res->fattr, res->server,
5471 !RPC_IS_ASYNC(rqstp->rq_task));
5477 * Decode OPEN response
5479 static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res)
5481 struct xdr_stream xdr;
5482 struct compound_hdr hdr;
5485 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5486 status = decode_compound_hdr(&xdr, &hdr);
5489 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5492 status = decode_putfh(&xdr);
5495 status = decode_savefh(&xdr);
5498 status = decode_open(&xdr, res);
5501 if (decode_getfh(&xdr, &res->fh) != 0)
5503 if (decode_getfattr(&xdr, res->f_attr, res->server,
5504 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
5506 if (decode_restorefh(&xdr) != 0)
5508 decode_getfattr(&xdr, res->dir_attr, res->server,
5509 !RPC_IS_ASYNC(rqstp->rq_task));
5515 * Decode OPEN_CONFIRM response
5517 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res)
5519 struct xdr_stream xdr;
5520 struct compound_hdr hdr;
5523 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5524 status = decode_compound_hdr(&xdr, &hdr);
5527 status = decode_putfh(&xdr);
5530 status = decode_open_confirm(&xdr, res);
5536 * Decode OPEN response
5538 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res)
5540 struct xdr_stream xdr;
5541 struct compound_hdr hdr;
5544 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5545 status = decode_compound_hdr(&xdr, &hdr);
5548 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5551 status = decode_putfh(&xdr);
5554 status = decode_open(&xdr, res);
5557 decode_getfattr(&xdr, res->f_attr, res->server,
5558 !RPC_IS_ASYNC(rqstp->rq_task));
5564 * Decode SETATTR response
5566 static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res)
5568 struct xdr_stream xdr;
5569 struct compound_hdr hdr;
5572 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5573 status = decode_compound_hdr(&xdr, &hdr);
5576 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5579 status = decode_putfh(&xdr);
5582 status = decode_setattr(&xdr);
5585 decode_getfattr(&xdr, res->fattr, res->server,
5586 !RPC_IS_ASYNC(rqstp->rq_task));
5592 * Decode LOCK response
5594 static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res)
5596 struct xdr_stream xdr;
5597 struct compound_hdr hdr;
5600 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5601 status = decode_compound_hdr(&xdr, &hdr);
5604 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5607 status = decode_putfh(&xdr);
5610 status = decode_lock(&xdr, res);
5616 * Decode LOCKT response
5618 static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res)
5620 struct xdr_stream xdr;
5621 struct compound_hdr hdr;
5624 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5625 status = decode_compound_hdr(&xdr, &hdr);
5628 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5631 status = decode_putfh(&xdr);
5634 status = decode_lockt(&xdr, res);
5640 * Decode LOCKU response
5642 static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res)
5644 struct xdr_stream xdr;
5645 struct compound_hdr hdr;
5648 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5649 status = decode_compound_hdr(&xdr, &hdr);
5652 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5655 status = decode_putfh(&xdr);
5658 status = decode_locku(&xdr, res);
5663 static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, __be32 *p, void *dummy)
5665 struct xdr_stream xdr;
5666 struct compound_hdr hdr;
5669 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5670 status = decode_compound_hdr(&xdr, &hdr);
5672 status = decode_release_lockowner(&xdr);
5677 * Decode READLINK response
5679 static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p,
5680 struct nfs4_readlink_res *res)
5682 struct xdr_stream xdr;
5683 struct compound_hdr hdr;
5686 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5687 status = decode_compound_hdr(&xdr, &hdr);
5690 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5693 status = decode_putfh(&xdr);
5696 status = decode_readlink(&xdr, rqstp);
5702 * Decode READDIR response
5704 static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res)
5706 struct xdr_stream xdr;
5707 struct compound_hdr hdr;
5710 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5711 status = decode_compound_hdr(&xdr, &hdr);
5714 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5717 status = decode_putfh(&xdr);
5720 status = decode_readdir(&xdr, rqstp, res);
5726 * Decode Read response
5728 static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res)
5730 struct xdr_stream xdr;
5731 struct compound_hdr hdr;
5734 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5735 status = decode_compound_hdr(&xdr, &hdr);
5738 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5741 status = decode_putfh(&xdr);
5744 status = decode_read(&xdr, rqstp, res);
5746 status = res->count;
5752 * Decode WRITE response
5754 static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res)
5756 struct xdr_stream xdr;
5757 struct compound_hdr hdr;
5760 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5761 status = decode_compound_hdr(&xdr, &hdr);
5764 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5767 status = decode_putfh(&xdr);
5770 status = decode_write(&xdr, res);
5773 decode_getfattr(&xdr, res->fattr, res->server,
5774 !RPC_IS_ASYNC(rqstp->rq_task));
5776 status = res->count;
5782 * Decode COMMIT response
5784 static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res)
5786 struct xdr_stream xdr;
5787 struct compound_hdr hdr;
5790 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5791 status = decode_compound_hdr(&xdr, &hdr);
5794 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5797 status = decode_putfh(&xdr);
5800 status = decode_commit(&xdr, res);
5803 decode_getfattr(&xdr, res->fattr, res->server,
5804 !RPC_IS_ASYNC(rqstp->rq_task));
5810 * Decode FSINFO response
5812 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p,
5813 struct nfs4_fsinfo_res *res)
5815 struct xdr_stream xdr;
5816 struct compound_hdr hdr;
5819 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5820 status = decode_compound_hdr(&xdr, &hdr);
5822 status = decode_sequence(&xdr, &res->seq_res, req);
5824 status = decode_putfh(&xdr);
5826 status = decode_fsinfo(&xdr, res->fsinfo);
5831 * Decode PATHCONF response
5833 static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p,
5834 struct nfs4_pathconf_res *res)
5836 struct xdr_stream xdr;
5837 struct compound_hdr hdr;
5840 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5841 status = decode_compound_hdr(&xdr, &hdr);
5843 status = decode_sequence(&xdr, &res->seq_res, req);
5845 status = decode_putfh(&xdr);
5847 status = decode_pathconf(&xdr, res->pathconf);
5852 * Decode STATFS response
5854 static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p,
5855 struct nfs4_statfs_res *res)
5857 struct xdr_stream xdr;
5858 struct compound_hdr hdr;
5861 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5862 status = decode_compound_hdr(&xdr, &hdr);
5864 status = decode_sequence(&xdr, &res->seq_res, req);
5866 status = decode_putfh(&xdr);
5868 status = decode_statfs(&xdr, res->fsstat);
5873 * Decode GETATTR_BITMAP response
5875 static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res)
5877 struct xdr_stream xdr;
5878 struct compound_hdr hdr;
5881 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5882 status = decode_compound_hdr(&xdr, &hdr);
5885 status = decode_sequence(&xdr, &res->seq_res, req);
5888 if ((status = decode_putfh(&xdr)) != 0)
5890 status = decode_server_caps(&xdr, res);
5896 * Decode RENEW response
5898 static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy)
5900 struct xdr_stream xdr;
5901 struct compound_hdr hdr;
5904 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5905 status = decode_compound_hdr(&xdr, &hdr);
5907 status = decode_renew(&xdr);
5912 * Decode SETCLIENTID response
5914 static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p,
5915 struct nfs4_setclientid_res *res)
5917 struct xdr_stream xdr;
5918 struct compound_hdr hdr;
5921 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5922 status = decode_compound_hdr(&xdr, &hdr);
5924 status = decode_setclientid(&xdr, res);
5929 * Decode SETCLIENTID_CONFIRM response
5931 static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo)
5933 struct xdr_stream xdr;
5934 struct compound_hdr hdr;
5937 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5938 status = decode_compound_hdr(&xdr, &hdr);
5940 status = decode_setclientid_confirm(&xdr);
5942 status = decode_putrootfh(&xdr);
5944 status = decode_fsinfo(&xdr, fsinfo);
5949 * Decode DELEGRETURN response
5951 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res)
5953 struct xdr_stream xdr;
5954 struct compound_hdr hdr;
5957 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
5958 status = decode_compound_hdr(&xdr, &hdr);
5961 status = decode_sequence(&xdr, &res->seq_res, rqstp);
5964 status = decode_putfh(&xdr);
5967 status = decode_delegreturn(&xdr);
5970 decode_getfattr(&xdr, res->fattr, res->server,
5971 !RPC_IS_ASYNC(rqstp->rq_task));
5977 * Decode FS_LOCATIONS response
5979 static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p,
5980 struct nfs4_fs_locations_res *res)
5982 struct xdr_stream xdr;
5983 struct compound_hdr hdr;
5986 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
5987 status = decode_compound_hdr(&xdr, &hdr);
5990 status = decode_sequence(&xdr, &res->seq_res, req);
5993 if ((status = decode_putfh(&xdr)) != 0)
5995 if ((status = decode_lookup(&xdr)) != 0)
5997 xdr_enter_page(&xdr, PAGE_SIZE);
5998 status = decode_getfattr(&xdr, &res->fs_locations->fattr,
5999 res->fs_locations->server,
6000 !RPC_IS_ASYNC(req->rq_task));
6005 #if defined(CONFIG_NFS_V4_1)
6007 * Decode EXCHANGE_ID response
6009 static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p,
6012 struct xdr_stream xdr;
6013 struct compound_hdr hdr;
6016 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
6017 status = decode_compound_hdr(&xdr, &hdr);
6019 status = decode_exchange_id(&xdr, res);
6024 * Decode CREATE_SESSION response
6026 static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p,
6027 struct nfs41_create_session_res *res)
6029 struct xdr_stream xdr;
6030 struct compound_hdr hdr;
6033 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
6034 status = decode_compound_hdr(&xdr, &hdr);
6036 status = decode_create_session(&xdr, res);
6041 * Decode DESTROY_SESSION response
6043 static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p,
6046 struct xdr_stream xdr;
6047 struct compound_hdr hdr;
6050 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
6051 status = decode_compound_hdr(&xdr, &hdr);
6053 status = decode_destroy_session(&xdr, dummy);
6058 * Decode SEQUENCE response
6060 static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p,
6061 struct nfs4_sequence_res *res)
6063 struct xdr_stream xdr;
6064 struct compound_hdr hdr;
6067 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
6068 status = decode_compound_hdr(&xdr, &hdr);
6070 status = decode_sequence(&xdr, res, rqstp);
6075 * Decode GET_LEASE_TIME response
6077 static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p,
6078 struct nfs4_get_lease_time_res *res)
6080 struct xdr_stream xdr;
6081 struct compound_hdr hdr;
6084 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
6085 status = decode_compound_hdr(&xdr, &hdr);
6087 status = decode_sequence(&xdr, &res->lr_seq_res, rqstp);
6089 status = decode_putrootfh(&xdr);
6091 status = decode_fsinfo(&xdr, res->lr_fsinfo);
6096 * Decode RECLAIM_COMPLETE response
6098 static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, uint32_t *p,
6099 struct nfs41_reclaim_complete_res *res)
6101 struct xdr_stream xdr;
6102 struct compound_hdr hdr;
6105 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
6106 status = decode_compound_hdr(&xdr, &hdr);
6108 status = decode_sequence(&xdr, &res->seq_res, rqstp);
6110 status = decode_reclaim_complete(&xdr, (void *)NULL);
6115 * Decode GETDEVINFO response
6117 static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, uint32_t *p,
6118 struct nfs4_getdeviceinfo_res *res)
6120 struct xdr_stream xdr;
6121 struct compound_hdr hdr;
6124 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
6125 status = decode_compound_hdr(&xdr, &hdr);
6128 status = decode_sequence(&xdr, &res->seq_res, rqstp);
6131 status = decode_getdeviceinfo(&xdr, res->pdev);
6137 * Decode LAYOUTGET response
6139 static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, uint32_t *p,
6140 struct nfs4_layoutget_res *res)
6142 struct xdr_stream xdr;
6143 struct compound_hdr hdr;
6146 xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
6147 status = decode_compound_hdr(&xdr, &hdr);
6150 status = decode_sequence(&xdr, &res->seq_res, rqstp);
6153 status = decode_putfh(&xdr);
6156 status = decode_layoutget(&xdr, rqstp, res);
6160 #endif /* CONFIG_NFS_V4_1 */
6162 __be32 *nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
6163 struct nfs_server *server, int plus)
6165 uint32_t bitmap[2] = {0};
6167 __be32 *p = xdr_inline_decode(xdr, 4);
6171 p = xdr_inline_decode(xdr, 4);
6175 return ERR_PTR(-EAGAIN);
6177 return ERR_PTR(-EBADCOOKIE);
6180 p = xdr_inline_decode(xdr, 12);
6183 entry->prev_cookie = entry->cookie;
6184 p = xdr_decode_hyper(p, &entry->cookie);
6185 entry->len = ntohl(*p++);
6187 p = xdr_inline_decode(xdr, entry->len);
6190 entry->name = (const char *) p;
6193 * In case the server doesn't return an inode number,
6194 * we fake one here. (We don't use inode number 0,
6195 * since glibc seems to choke on it...)
6198 entry->fattr->valid = 0;
6200 if (decode_attr_bitmap(xdr, bitmap) < 0)
6203 if (decode_attr_length(xdr, &len, &p) < 0)
6206 if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, server, 1) < 0)
6208 if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID)
6209 entry->ino = entry->fattr->fileid;
6211 if (verify_attr_len(xdr, p, len) < 0)
6214 p = xdr_inline_peek(xdr, 8);
6216 entry->eof = !p[0] && p[1];
6223 print_overflow_msg(__func__, xdr);
6224 return ERR_PTR(-EIO);
6228 * We need to translate between nfs status return values and
6229 * the local errno values which may not be the same.
6236 { NFS4ERR_PERM, -EPERM },
6237 { NFS4ERR_NOENT, -ENOENT },
6238 { NFS4ERR_IO, -errno_NFSERR_IO},
6239 { NFS4ERR_NXIO, -ENXIO },
6240 { NFS4ERR_ACCESS, -EACCES },
6241 { NFS4ERR_EXIST, -EEXIST },
6242 { NFS4ERR_XDEV, -EXDEV },
6243 { NFS4ERR_NOTDIR, -ENOTDIR },
6244 { NFS4ERR_ISDIR, -EISDIR },
6245 { NFS4ERR_INVAL, -EINVAL },
6246 { NFS4ERR_FBIG, -EFBIG },
6247 { NFS4ERR_NOSPC, -ENOSPC },
6248 { NFS4ERR_ROFS, -EROFS },
6249 { NFS4ERR_MLINK, -EMLINK },
6250 { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG },
6251 { NFS4ERR_NOTEMPTY, -ENOTEMPTY },
6252 { NFS4ERR_DQUOT, -EDQUOT },
6253 { NFS4ERR_STALE, -ESTALE },
6254 { NFS4ERR_BADHANDLE, -EBADHANDLE },
6255 { NFS4ERR_BADOWNER, -EINVAL },
6256 { NFS4ERR_BADNAME, -EINVAL },
6257 { NFS4ERR_BAD_COOKIE, -EBADCOOKIE },
6258 { NFS4ERR_NOTSUPP, -ENOTSUPP },
6259 { NFS4ERR_TOOSMALL, -ETOOSMALL },
6260 { NFS4ERR_SERVERFAULT, -EREMOTEIO },
6261 { NFS4ERR_BADTYPE, -EBADTYPE },
6262 { NFS4ERR_LOCKED, -EAGAIN },
6263 { NFS4ERR_SYMLINK, -ELOOP },
6264 { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP },
6265 { NFS4ERR_DEADLOCK, -EDEADLK },
6266 { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs
6267 * to be handled by a
6274 * Convert an NFS error code to a local one.
6275 * This one is used jointly by NFSv2 and NFSv3.
6278 nfs4_stat_to_errno(int stat)
6281 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
6282 if (nfs_errtbl[i].stat == stat)
6283 return nfs_errtbl[i].errno;
6285 if (stat <= 10000 || stat > 10100) {
6286 /* The server is looney tunes. */
6289 /* If we cannot translate the error, the recovery routines should
6291 * Note: remaining NFSv4 error codes have values > 10000, so should
6292 * not conflict with native Linux error codes.
6297 #define PROC(proc, argtype, restype) \
6298 [NFSPROC4_CLNT_##proc] = { \
6299 .p_proc = NFSPROC4_COMPOUND, \
6300 .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \
6301 .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \
6302 .p_arglen = NFS4_##argtype##_sz, \
6303 .p_replen = NFS4_##restype##_sz, \
6304 .p_statidx = NFSPROC4_CLNT_##proc, \
6308 struct rpc_procinfo nfs4_procedures[] = {
6309 PROC(READ, enc_read, dec_read),
6310 PROC(WRITE, enc_write, dec_write),
6311 PROC(COMMIT, enc_commit, dec_commit),
6312 PROC(OPEN, enc_open, dec_open),
6313 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
6314 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
6315 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
6316 PROC(CLOSE, enc_close, dec_close),
6317 PROC(SETATTR, enc_setattr, dec_setattr),
6318 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
6319 PROC(RENEW, enc_renew, dec_renew),
6320 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
6321 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
6322 PROC(LOCK, enc_lock, dec_lock),
6323 PROC(LOCKT, enc_lockt, dec_lockt),
6324 PROC(LOCKU, enc_locku, dec_locku),
6325 PROC(ACCESS, enc_access, dec_access),
6326 PROC(GETATTR, enc_getattr, dec_getattr),
6327 PROC(LOOKUP, enc_lookup, dec_lookup),
6328 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
6329 PROC(REMOVE, enc_remove, dec_remove),
6330 PROC(RENAME, enc_rename, dec_rename),
6331 PROC(LINK, enc_link, dec_link),
6332 PROC(SYMLINK, enc_symlink, dec_symlink),
6333 PROC(CREATE, enc_create, dec_create),
6334 PROC(PATHCONF, enc_pathconf, dec_pathconf),
6335 PROC(STATFS, enc_statfs, dec_statfs),
6336 PROC(READLINK, enc_readlink, dec_readlink),
6337 PROC(READDIR, enc_readdir, dec_readdir),
6338 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
6339 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
6340 PROC(GETACL, enc_getacl, dec_getacl),
6341 PROC(SETACL, enc_setacl, dec_setacl),
6342 PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
6343 PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner),
6344 #if defined(CONFIG_NFS_V4_1)
6345 PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
6346 PROC(CREATE_SESSION, enc_create_session, dec_create_session),
6347 PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session),
6348 PROC(SEQUENCE, enc_sequence, dec_sequence),
6349 PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time),
6350 PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete),
6351 PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo),
6352 PROC(LAYOUTGET, enc_layoutget, dec_layoutget),
6353 #endif /* CONFIG_NFS_V4_1 */
6356 struct rpc_version nfs_version4 = {
6358 .nrprocs = ARRAY_SIZE(nfs4_procedures),
6359 .procs = nfs4_procedures