4 * Client-side XDR for NFSv4.
6 * Copyright (c) 2002 The Regents of the University of Michigan.
9 * Kendrick Smith <kmsmith@umich.edu>
10 * Andy Adamson <andros@umich.edu>
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of the University nor the names of its
22 * contributors may be used to endorse or promote products derived
23 * from this software without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
27 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
28 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
32 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
34 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 #include <linux/param.h>
39 #include <linux/time.h>
41 #include <linux/errno.h>
42 #include <linux/string.h>
44 #include <linux/pagemap.h>
45 #include <linux/proc_fs.h>
46 #include <linux/kdev_t.h>
47 #include <linux/sunrpc/clnt.h>
48 #include <linux/sunrpc/msg_prot.h>
49 #include <linux/nfs.h>
50 #include <linux/nfs4.h>
51 #include <linux/nfs_fs.h>
52 #include <linux/nfs_idmap.h>
56 #define NFSDBG_FACILITY NFSDBG_XDR
58 /* Mapping from NFS error code to "errno" error code. */
59 #define errno_NFSERR_IO EIO
61 static int nfs4_stat_to_errno(int);
63 /* NFSv4 COMPOUND tags are only wanted for debugging purposes */
65 #define NFS4_MAXTAGLEN 20
67 #define NFS4_MAXTAGLEN 0
70 /* lock,open owner id:
71 * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
73 #define open_owner_id_maxsz (1 + 4)
74 #define lock_owner_id_maxsz (1 + 4)
75 #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
76 #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
77 #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
78 #define op_encode_hdr_maxsz (1)
79 #define op_decode_hdr_maxsz (2)
80 #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
81 #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
82 #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
83 #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
84 #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
86 #define decode_putfh_maxsz (op_decode_hdr_maxsz)
87 #define encode_putrootfh_maxsz (op_encode_hdr_maxsz)
88 #define decode_putrootfh_maxsz (op_decode_hdr_maxsz)
89 #define encode_getfh_maxsz (op_encode_hdr_maxsz)
90 #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
91 ((3+NFS4_FHSIZE) >> 2))
92 #define nfs4_fattr_bitmap_maxsz 3
93 #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
94 #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
95 #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
96 #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
97 #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
98 /* This is based on getfattr, which uses the most attributes: */
99 #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
100 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz))
101 #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
102 nfs4_fattr_value_maxsz)
103 #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
104 #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
109 #define encode_savefh_maxsz (op_encode_hdr_maxsz)
110 #define decode_savefh_maxsz (op_decode_hdr_maxsz)
111 #define encode_restorefh_maxsz (op_encode_hdr_maxsz)
112 #define decode_restorefh_maxsz (op_decode_hdr_maxsz)
113 #define encode_fsinfo_maxsz (encode_getattr_maxsz)
114 #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11)
115 #define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
116 #define decode_renew_maxsz (op_decode_hdr_maxsz)
117 #define encode_setclientid_maxsz \
118 (op_encode_hdr_maxsz + \
119 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
120 XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \
122 XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
123 XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
125 #define decode_setclientid_maxsz \
126 (op_decode_hdr_maxsz + \
128 1024) /* large value for CLID_INUSE */
129 #define encode_setclientid_confirm_maxsz \
130 (op_encode_hdr_maxsz + \
131 3 + (NFS4_VERIFIER_SIZE >> 2))
132 #define decode_setclientid_confirm_maxsz \
133 (op_decode_hdr_maxsz)
134 #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
135 #define decode_lookup_maxsz (op_decode_hdr_maxsz)
136 #define encode_share_access_maxsz \
138 #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
139 #define encode_opentype_maxsz (1 + encode_createmode_maxsz)
140 #define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
141 #define encode_open_maxsz (op_encode_hdr_maxsz + \
142 2 + encode_share_access_maxsz + 2 + \
143 open_owner_id_maxsz + \
144 encode_opentype_maxsz + \
145 encode_claim_null_maxsz)
146 #define decode_ace_maxsz (3 + nfs4_owner_maxsz)
147 #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
149 #define decode_change_info_maxsz (5)
150 #define decode_open_maxsz (op_decode_hdr_maxsz + \
151 decode_stateid_maxsz + \
152 decode_change_info_maxsz + 1 + \
153 nfs4_fattr_bitmap_maxsz + \
154 decode_delegation_maxsz)
155 #define encode_open_confirm_maxsz \
156 (op_encode_hdr_maxsz + \
157 encode_stateid_maxsz + 1)
158 #define decode_open_confirm_maxsz \
159 (op_decode_hdr_maxsz + \
160 decode_stateid_maxsz)
161 #define encode_open_downgrade_maxsz \
162 (op_encode_hdr_maxsz + \
163 encode_stateid_maxsz + 1 + \
164 encode_share_access_maxsz)
165 #define decode_open_downgrade_maxsz \
166 (op_decode_hdr_maxsz + \
167 decode_stateid_maxsz)
168 #define encode_close_maxsz (op_encode_hdr_maxsz + \
169 1 + encode_stateid_maxsz)
170 #define decode_close_maxsz (op_decode_hdr_maxsz + \
171 decode_stateid_maxsz)
172 #define encode_setattr_maxsz (op_encode_hdr_maxsz + \
173 encode_stateid_maxsz + \
175 #define decode_setattr_maxsz (op_decode_hdr_maxsz + \
176 nfs4_fattr_bitmap_maxsz)
177 #define encode_read_maxsz (op_encode_hdr_maxsz + \
178 encode_stateid_maxsz + 3)
179 #define decode_read_maxsz (op_decode_hdr_maxsz + 2)
180 #define encode_readdir_maxsz (op_encode_hdr_maxsz + \
181 2 + encode_verifier_maxsz + 5)
182 #define decode_readdir_maxsz (op_decode_hdr_maxsz + \
183 decode_verifier_maxsz)
184 #define encode_readlink_maxsz (op_encode_hdr_maxsz)
185 #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1)
186 #define encode_write_maxsz (op_encode_hdr_maxsz + \
187 encode_stateid_maxsz + 4)
188 #define decode_write_maxsz (op_decode_hdr_maxsz + \
189 2 + decode_verifier_maxsz)
190 #define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
191 #define decode_commit_maxsz (op_decode_hdr_maxsz + \
192 decode_verifier_maxsz)
193 #define encode_remove_maxsz (op_encode_hdr_maxsz + \
195 #define decode_remove_maxsz (op_decode_hdr_maxsz + \
196 decode_change_info_maxsz)
197 #define encode_rename_maxsz (op_encode_hdr_maxsz + \
199 #define decode_rename_maxsz (op_decode_hdr_maxsz + \
200 decode_change_info_maxsz + \
201 decode_change_info_maxsz)
202 #define encode_link_maxsz (op_encode_hdr_maxsz + \
204 #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
205 #define encode_lockowner_maxsz (7)
206 #define encode_lock_maxsz (op_encode_hdr_maxsz + \
208 1 + encode_stateid_maxsz + 1 + \
209 encode_lockowner_maxsz)
210 #define decode_lock_denied_maxsz \
211 (8 + decode_lockowner_maxsz)
212 #define decode_lock_maxsz (op_decode_hdr_maxsz + \
213 decode_lock_denied_maxsz)
214 #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
215 encode_lockowner_maxsz)
216 #define decode_lockt_maxsz (op_decode_hdr_maxsz + \
217 decode_lock_denied_maxsz)
218 #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
219 encode_stateid_maxsz + \
221 #define decode_locku_maxsz (op_decode_hdr_maxsz + \
222 decode_stateid_maxsz)
223 #define encode_release_lockowner_maxsz \
224 (op_encode_hdr_maxsz + \
225 encode_lockowner_maxsz)
226 #define decode_release_lockowner_maxsz \
227 (op_decode_hdr_maxsz)
228 #define encode_access_maxsz (op_encode_hdr_maxsz + 1)
229 #define decode_access_maxsz (op_decode_hdr_maxsz + 2)
230 #define encode_symlink_maxsz (op_encode_hdr_maxsz + \
231 1 + nfs4_name_maxsz + \
234 #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
235 #define encode_create_maxsz (op_encode_hdr_maxsz + \
236 1 + 2 + nfs4_name_maxsz + \
238 #define decode_create_maxsz (op_decode_hdr_maxsz + \
239 decode_change_info_maxsz + \
240 nfs4_fattr_bitmap_maxsz)
241 #define encode_statfs_maxsz (encode_getattr_maxsz)
242 #define decode_statfs_maxsz (decode_getattr_maxsz)
243 #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
244 #define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
245 #define encode_getacl_maxsz (encode_getattr_maxsz)
246 #define decode_getacl_maxsz (op_decode_hdr_maxsz + \
247 nfs4_fattr_bitmap_maxsz + 1)
248 #define encode_setacl_maxsz (op_encode_hdr_maxsz + \
249 encode_stateid_maxsz + 3)
250 #define decode_setacl_maxsz (decode_setattr_maxsz)
251 #define encode_fs_locations_maxsz \
252 (encode_getattr_maxsz)
253 #define decode_fs_locations_maxsz \
256 #if defined(CONFIG_NFS_V4_1)
257 #define NFS4_MAX_MACHINE_NAME_LEN (64)
259 #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
260 encode_verifier_maxsz + \
261 1 /* co_ownerid.len */ + \
262 XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \
265 0 /* SP4_NONE (for now) */ + \
266 1 /* zero implemetation id array */)
267 #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
268 2 /* eir_clientid */ + \
269 1 /* eir_sequenceid */ + \
270 1 /* eir_flags */ + \
272 0 /* SP4_NONE (for now) */ + \
273 2 /* eir_server_owner.so_minor_id */ + \
274 /* eir_server_owner.so_major_id<> */ \
275 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
276 /* eir_server_scope<> */ \
277 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
278 1 /* eir_server_impl_id array length */ + \
279 0 /* ignored eir_server_impl_id contents */)
280 #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
281 #define decode_channel_attrs_maxsz (6 + \
282 1 /* ca_rdma_ird.len */ + \
284 #define encode_create_session_maxsz (op_encode_hdr_maxsz + \
285 2 /* csa_clientid */ + \
286 1 /* csa_sequence */ + \
287 1 /* csa_flags */ + \
288 encode_channel_attrs_maxsz + \
289 encode_channel_attrs_maxsz + \
290 1 /* csa_cb_program */ + \
291 1 /* csa_sec_parms.len (1) */ + \
292 1 /* cb_secflavor (AUTH_SYS) */ + \
294 1 /* machinename.len */ + \
295 XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
298 1 /* gids.len (0) */)
299 #define decode_create_session_maxsz (op_decode_hdr_maxsz + \
300 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
301 1 /* csr_sequence */ + \
302 1 /* csr_flags */ + \
303 decode_channel_attrs_maxsz + \
304 decode_channel_attrs_maxsz)
305 #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
306 #define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
307 #define encode_sequence_maxsz (op_encode_hdr_maxsz + \
308 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
309 #define decode_sequence_maxsz (op_decode_hdr_maxsz + \
310 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
311 #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
312 #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
313 #else /* CONFIG_NFS_V4_1 */
314 #define encode_sequence_maxsz 0
315 #define decode_sequence_maxsz 0
316 #endif /* CONFIG_NFS_V4_1 */
318 #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
319 #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
320 #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
321 encode_sequence_maxsz + \
322 encode_putfh_maxsz + \
324 #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
325 decode_sequence_maxsz + \
326 decode_putfh_maxsz + \
328 #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
329 encode_sequence_maxsz + \
330 encode_putfh_maxsz + \
331 encode_readlink_maxsz)
332 #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
333 decode_sequence_maxsz + \
334 decode_putfh_maxsz + \
335 decode_readlink_maxsz)
336 #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
337 encode_sequence_maxsz + \
338 encode_putfh_maxsz + \
339 encode_readdir_maxsz)
340 #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
341 decode_sequence_maxsz + \
342 decode_putfh_maxsz + \
343 decode_readdir_maxsz)
344 #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
345 encode_sequence_maxsz + \
346 encode_putfh_maxsz + \
347 encode_write_maxsz + \
348 encode_getattr_maxsz)
349 #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
350 decode_sequence_maxsz + \
351 decode_putfh_maxsz + \
352 decode_write_maxsz + \
353 decode_getattr_maxsz)
354 #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
355 encode_sequence_maxsz + \
356 encode_putfh_maxsz + \
357 encode_commit_maxsz + \
358 encode_getattr_maxsz)
359 #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
360 decode_sequence_maxsz + \
361 decode_putfh_maxsz + \
362 decode_commit_maxsz + \
363 decode_getattr_maxsz)
364 #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
365 encode_sequence_maxsz + \
366 encode_putfh_maxsz + \
367 encode_savefh_maxsz + \
368 encode_open_maxsz + \
369 encode_getfh_maxsz + \
370 encode_getattr_maxsz + \
371 encode_restorefh_maxsz + \
372 encode_getattr_maxsz)
373 #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
374 decode_sequence_maxsz + \
375 decode_putfh_maxsz + \
376 decode_savefh_maxsz + \
377 decode_open_maxsz + \
378 decode_getfh_maxsz + \
379 decode_getattr_maxsz + \
380 decode_restorefh_maxsz + \
381 decode_getattr_maxsz)
382 #define NFS4_enc_open_confirm_sz \
383 (compound_encode_hdr_maxsz + \
384 encode_putfh_maxsz + \
385 encode_open_confirm_maxsz)
386 #define NFS4_dec_open_confirm_sz \
387 (compound_decode_hdr_maxsz + \
388 decode_putfh_maxsz + \
389 decode_open_confirm_maxsz)
390 #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
391 encode_sequence_maxsz + \
392 encode_putfh_maxsz + \
393 encode_open_maxsz + \
394 encode_getattr_maxsz)
395 #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
396 decode_sequence_maxsz + \
397 decode_putfh_maxsz + \
398 decode_open_maxsz + \
399 decode_getattr_maxsz)
400 #define NFS4_enc_open_downgrade_sz \
401 (compound_encode_hdr_maxsz + \
402 encode_sequence_maxsz + \
403 encode_putfh_maxsz + \
404 encode_open_downgrade_maxsz + \
405 encode_getattr_maxsz)
406 #define NFS4_dec_open_downgrade_sz \
407 (compound_decode_hdr_maxsz + \
408 decode_sequence_maxsz + \
409 decode_putfh_maxsz + \
410 decode_open_downgrade_maxsz + \
411 decode_getattr_maxsz)
412 #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
413 encode_sequence_maxsz + \
414 encode_putfh_maxsz + \
415 encode_close_maxsz + \
416 encode_getattr_maxsz)
417 #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
418 decode_sequence_maxsz + \
419 decode_putfh_maxsz + \
420 decode_close_maxsz + \
421 decode_getattr_maxsz)
422 #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
423 encode_sequence_maxsz + \
424 encode_putfh_maxsz + \
425 encode_setattr_maxsz + \
426 encode_getattr_maxsz)
427 #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
428 decode_sequence_maxsz + \
429 decode_putfh_maxsz + \
430 decode_setattr_maxsz + \
431 decode_getattr_maxsz)
432 #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
433 encode_sequence_maxsz + \
434 encode_putfh_maxsz + \
436 #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
437 decode_sequence_maxsz + \
438 decode_putfh_maxsz + \
440 #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
442 #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
444 #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
445 encode_setclientid_maxsz)
446 #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
447 decode_setclientid_maxsz)
448 #define NFS4_enc_setclientid_confirm_sz \
449 (compound_encode_hdr_maxsz + \
450 encode_setclientid_confirm_maxsz + \
451 encode_putrootfh_maxsz + \
453 #define NFS4_dec_setclientid_confirm_sz \
454 (compound_decode_hdr_maxsz + \
455 decode_setclientid_confirm_maxsz + \
456 decode_putrootfh_maxsz + \
458 #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
459 encode_sequence_maxsz + \
460 encode_putfh_maxsz + \
462 #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
463 decode_sequence_maxsz + \
464 decode_putfh_maxsz + \
466 #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
467 encode_sequence_maxsz + \
468 encode_putfh_maxsz + \
470 #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
471 decode_sequence_maxsz + \
472 decode_putfh_maxsz + \
474 #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
475 encode_sequence_maxsz + \
476 encode_putfh_maxsz + \
478 #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
479 decode_sequence_maxsz + \
480 decode_putfh_maxsz + \
482 #define NFS4_enc_release_lockowner_sz \
483 (compound_encode_hdr_maxsz + \
484 encode_lockowner_maxsz)
485 #define NFS4_dec_release_lockowner_sz \
486 (compound_decode_hdr_maxsz + \
487 decode_lockowner_maxsz)
488 #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
489 encode_sequence_maxsz + \
490 encode_putfh_maxsz + \
491 encode_access_maxsz + \
492 encode_getattr_maxsz)
493 #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
494 decode_sequence_maxsz + \
495 decode_putfh_maxsz + \
496 decode_access_maxsz + \
497 decode_getattr_maxsz)
498 #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
499 encode_sequence_maxsz + \
500 encode_putfh_maxsz + \
501 encode_getattr_maxsz)
502 #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
503 decode_sequence_maxsz + \
504 decode_putfh_maxsz + \
505 decode_getattr_maxsz)
506 #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
507 encode_sequence_maxsz + \
508 encode_putfh_maxsz + \
509 encode_lookup_maxsz + \
510 encode_getattr_maxsz + \
512 #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
513 decode_sequence_maxsz + \
514 decode_putfh_maxsz + \
515 decode_lookup_maxsz + \
516 decode_getattr_maxsz + \
518 #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
519 encode_sequence_maxsz + \
520 encode_putrootfh_maxsz + \
521 encode_getattr_maxsz + \
523 #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
524 decode_sequence_maxsz + \
525 decode_putrootfh_maxsz + \
526 decode_getattr_maxsz + \
528 #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
529 encode_sequence_maxsz + \
530 encode_putfh_maxsz + \
531 encode_remove_maxsz + \
532 encode_getattr_maxsz)
533 #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
534 decode_sequence_maxsz + \
535 decode_putfh_maxsz + \
536 decode_remove_maxsz + \
537 decode_getattr_maxsz)
538 #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
539 encode_sequence_maxsz + \
540 encode_putfh_maxsz + \
541 encode_savefh_maxsz + \
542 encode_putfh_maxsz + \
543 encode_rename_maxsz + \
544 encode_getattr_maxsz + \
545 encode_restorefh_maxsz + \
546 encode_getattr_maxsz)
547 #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
548 decode_sequence_maxsz + \
549 decode_putfh_maxsz + \
550 decode_savefh_maxsz + \
551 decode_putfh_maxsz + \
552 decode_rename_maxsz + \
553 decode_getattr_maxsz + \
554 decode_restorefh_maxsz + \
555 decode_getattr_maxsz)
556 #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
557 encode_sequence_maxsz + \
558 encode_putfh_maxsz + \
559 encode_savefh_maxsz + \
560 encode_putfh_maxsz + \
561 encode_link_maxsz + \
562 decode_getattr_maxsz + \
563 encode_restorefh_maxsz + \
564 decode_getattr_maxsz)
565 #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
566 decode_sequence_maxsz + \
567 decode_putfh_maxsz + \
568 decode_savefh_maxsz + \
569 decode_putfh_maxsz + \
570 decode_link_maxsz + \
571 decode_getattr_maxsz + \
572 decode_restorefh_maxsz + \
573 decode_getattr_maxsz)
574 #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
575 encode_sequence_maxsz + \
576 encode_putfh_maxsz + \
577 encode_symlink_maxsz + \
578 encode_getattr_maxsz + \
580 #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
581 decode_sequence_maxsz + \
582 decode_putfh_maxsz + \
583 decode_symlink_maxsz + \
584 decode_getattr_maxsz + \
586 #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
587 encode_sequence_maxsz + \
588 encode_putfh_maxsz + \
589 encode_savefh_maxsz + \
590 encode_create_maxsz + \
591 encode_getfh_maxsz + \
592 encode_getattr_maxsz + \
593 encode_restorefh_maxsz + \
594 encode_getattr_maxsz)
595 #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
596 decode_sequence_maxsz + \
597 decode_putfh_maxsz + \
598 decode_savefh_maxsz + \
599 decode_create_maxsz + \
600 decode_getfh_maxsz + \
601 decode_getattr_maxsz + \
602 decode_restorefh_maxsz + \
603 decode_getattr_maxsz)
604 #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
605 encode_sequence_maxsz + \
606 encode_putfh_maxsz + \
607 encode_getattr_maxsz)
608 #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
609 decode_sequence_maxsz + \
610 decode_putfh_maxsz + \
611 decode_getattr_maxsz)
612 #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
613 encode_sequence_maxsz + \
614 encode_putfh_maxsz + \
616 #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
617 decode_sequence_maxsz + \
618 decode_putfh_maxsz + \
620 #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
621 encode_sequence_maxsz + \
622 encode_putfh_maxsz + \
623 encode_getattr_maxsz)
624 #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
625 decode_sequence_maxsz + \
626 decode_putfh_maxsz + \
627 decode_getattr_maxsz)
628 #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
629 encode_sequence_maxsz + \
630 encode_putfh_maxsz + \
631 encode_delegreturn_maxsz + \
632 encode_getattr_maxsz)
633 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
634 decode_sequence_maxsz + \
635 decode_delegreturn_maxsz + \
636 decode_getattr_maxsz)
637 #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
638 encode_sequence_maxsz + \
639 encode_putfh_maxsz + \
641 #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
642 decode_sequence_maxsz + \
643 decode_putfh_maxsz + \
645 #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
646 encode_sequence_maxsz + \
647 encode_putfh_maxsz + \
649 #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
650 decode_sequence_maxsz + \
651 decode_putfh_maxsz + \
653 #define NFS4_enc_fs_locations_sz \
654 (compound_encode_hdr_maxsz + \
655 encode_sequence_maxsz + \
656 encode_putfh_maxsz + \
657 encode_lookup_maxsz + \
658 encode_fs_locations_maxsz)
659 #define NFS4_dec_fs_locations_sz \
660 (compound_decode_hdr_maxsz + \
661 decode_sequence_maxsz + \
662 decode_putfh_maxsz + \
663 decode_lookup_maxsz + \
664 decode_fs_locations_maxsz)
665 #if defined(CONFIG_NFS_V4_1)
666 #define NFS4_enc_exchange_id_sz \
667 (compound_encode_hdr_maxsz + \
668 encode_exchange_id_maxsz)
669 #define NFS4_dec_exchange_id_sz \
670 (compound_decode_hdr_maxsz + \
671 decode_exchange_id_maxsz)
672 #define NFS4_enc_create_session_sz \
673 (compound_encode_hdr_maxsz + \
674 encode_create_session_maxsz)
675 #define NFS4_dec_create_session_sz \
676 (compound_decode_hdr_maxsz + \
677 decode_create_session_maxsz)
678 #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
679 encode_destroy_session_maxsz)
680 #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
681 decode_destroy_session_maxsz)
682 #define NFS4_enc_sequence_sz \
683 (compound_decode_hdr_maxsz + \
684 encode_sequence_maxsz)
685 #define NFS4_dec_sequence_sz \
686 (compound_decode_hdr_maxsz + \
687 decode_sequence_maxsz)
688 #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
689 encode_sequence_maxsz + \
690 encode_putrootfh_maxsz + \
692 #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
693 decode_sequence_maxsz + \
694 decode_putrootfh_maxsz + \
696 #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
697 encode_sequence_maxsz + \
698 encode_reclaim_complete_maxsz)
699 #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
700 decode_sequence_maxsz + \
701 decode_reclaim_complete_maxsz)
703 const u32 nfs41_maxwrite_overhead
= ((RPC_MAX_HEADER_WITH_AUTH
+
704 compound_encode_hdr_maxsz
+
705 encode_sequence_maxsz
+
707 encode_getattr_maxsz
) *
710 const u32 nfs41_maxread_overhead
= ((RPC_MAX_HEADER_WITH_AUTH
+
711 compound_decode_hdr_maxsz
+
712 decode_sequence_maxsz
+
713 decode_putfh_maxsz
) *
715 #endif /* CONFIG_NFS_V4_1 */
717 static const umode_t nfs_type2fmt
[] = {
724 [NF4SOCK
] = S_IFSOCK
,
730 struct compound_hdr
{
736 uint32_t replen
; /* expected reply words */
740 static __be32
*reserve_space(struct xdr_stream
*xdr
, size_t nbytes
)
742 __be32
*p
= xdr_reserve_space(xdr
, nbytes
);
747 static void encode_string(struct xdr_stream
*xdr
, unsigned int len
, const char *str
)
751 p
= xdr_reserve_space(xdr
, 4 + len
);
753 xdr_encode_opaque(p
, str
, len
);
756 static void encode_compound_hdr(struct xdr_stream
*xdr
,
757 struct rpc_rqst
*req
,
758 struct compound_hdr
*hdr
)
761 struct rpc_auth
*auth
= req
->rq_cred
->cr_auth
;
763 /* initialize running count of expected bytes in reply.
764 * NOTE: the replied tag SHOULD be the same is the one sent,
765 * but this is not required as a MUST for the server to do so. */
766 hdr
->replen
= RPC_REPHDRSIZE
+ auth
->au_rslack
+ 3 + hdr
->taglen
;
768 dprintk("encode_compound: tag=%.*s\n", (int)hdr
->taglen
, hdr
->tag
);
769 BUG_ON(hdr
->taglen
> NFS4_MAXTAGLEN
);
770 p
= reserve_space(xdr
, 4 + hdr
->taglen
+ 8);
771 p
= xdr_encode_opaque(p
, hdr
->tag
, hdr
->taglen
);
772 *p
++ = cpu_to_be32(hdr
->minorversion
);
774 *p
= cpu_to_be32(hdr
->nops
);
777 static void encode_nops(struct compound_hdr
*hdr
)
779 BUG_ON(hdr
->nops
> NFS4_MAX_OPS
);
780 *hdr
->nops_p
= htonl(hdr
->nops
);
783 static void encode_nfs4_verifier(struct xdr_stream
*xdr
, const nfs4_verifier
*verf
)
787 p
= xdr_reserve_space(xdr
, NFS4_VERIFIER_SIZE
);
789 xdr_encode_opaque_fixed(p
, verf
->data
, NFS4_VERIFIER_SIZE
);
792 static void encode_attrs(struct xdr_stream
*xdr
, const struct iattr
*iap
, const struct nfs_server
*server
)
794 char owner_name
[IDMAP_NAMESZ
];
795 char owner_group
[IDMAP_NAMESZ
];
796 int owner_namelen
= 0;
797 int owner_grouplen
= 0;
805 * We reserve enough space to write the entire attribute buffer at once.
806 * In the worst-case, this would be
807 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
808 * = 36 bytes, plus any contribution from variable-length fields
809 * such as owner/group.
814 if (iap
->ia_valid
& ATTR_SIZE
)
816 if (iap
->ia_valid
& ATTR_MODE
)
818 if (iap
->ia_valid
& ATTR_UID
) {
819 owner_namelen
= nfs_map_uid_to_name(server
->nfs_client
, iap
->ia_uid
, owner_name
, IDMAP_NAMESZ
);
820 if (owner_namelen
< 0) {
821 dprintk("nfs: couldn't resolve uid %d to string\n",
824 strcpy(owner_name
, "nobody");
825 owner_namelen
= sizeof("nobody") - 1;
828 len
+= 4 + (XDR_QUADLEN(owner_namelen
) << 2);
830 if (iap
->ia_valid
& ATTR_GID
) {
831 owner_grouplen
= nfs_map_gid_to_group(server
->nfs_client
, iap
->ia_gid
, owner_group
, IDMAP_NAMESZ
);
832 if (owner_grouplen
< 0) {
833 dprintk("nfs: couldn't resolve gid %d to string\n",
835 strcpy(owner_group
, "nobody");
836 owner_grouplen
= sizeof("nobody") - 1;
839 len
+= 4 + (XDR_QUADLEN(owner_grouplen
) << 2);
841 if (iap
->ia_valid
& ATTR_ATIME_SET
)
843 else if (iap
->ia_valid
& ATTR_ATIME
)
845 if (iap
->ia_valid
& ATTR_MTIME_SET
)
847 else if (iap
->ia_valid
& ATTR_MTIME
)
849 p
= reserve_space(xdr
, len
);
852 * We write the bitmap length now, but leave the bitmap and the attribute
853 * buffer length to be backfilled at the end of this routine.
855 *p
++ = cpu_to_be32(2);
859 if (iap
->ia_valid
& ATTR_SIZE
) {
860 bmval0
|= FATTR4_WORD0_SIZE
;
861 p
= xdr_encode_hyper(p
, iap
->ia_size
);
863 if (iap
->ia_valid
& ATTR_MODE
) {
864 bmval1
|= FATTR4_WORD1_MODE
;
865 *p
++ = cpu_to_be32(iap
->ia_mode
& S_IALLUGO
);
867 if (iap
->ia_valid
& ATTR_UID
) {
868 bmval1
|= FATTR4_WORD1_OWNER
;
869 p
= xdr_encode_opaque(p
, owner_name
, owner_namelen
);
871 if (iap
->ia_valid
& ATTR_GID
) {
872 bmval1
|= FATTR4_WORD1_OWNER_GROUP
;
873 p
= xdr_encode_opaque(p
, owner_group
, owner_grouplen
);
875 if (iap
->ia_valid
& ATTR_ATIME_SET
) {
876 bmval1
|= FATTR4_WORD1_TIME_ACCESS_SET
;
877 *p
++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME
);
878 *p
++ = cpu_to_be32(0);
879 *p
++ = cpu_to_be32(iap
->ia_atime
.tv_sec
);
880 *p
++ = cpu_to_be32(iap
->ia_atime
.tv_nsec
);
882 else if (iap
->ia_valid
& ATTR_ATIME
) {
883 bmval1
|= FATTR4_WORD1_TIME_ACCESS_SET
;
884 *p
++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME
);
886 if (iap
->ia_valid
& ATTR_MTIME_SET
) {
887 bmval1
|= FATTR4_WORD1_TIME_MODIFY_SET
;
888 *p
++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME
);
889 *p
++ = cpu_to_be32(0);
890 *p
++ = cpu_to_be32(iap
->ia_mtime
.tv_sec
);
891 *p
++ = cpu_to_be32(iap
->ia_mtime
.tv_nsec
);
893 else if (iap
->ia_valid
& ATTR_MTIME
) {
894 bmval1
|= FATTR4_WORD1_TIME_MODIFY_SET
;
895 *p
++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME
);
899 * Now we backfill the bitmap and the attribute buffer length.
901 if (len
!= ((char *)p
- (char *)q
) + 4) {
902 printk(KERN_ERR
"nfs: Attr length error, %u != %Zu\n",
903 len
, ((char *)p
- (char *)q
) + 4);
906 len
= (char *)p
- (char *)q
- 12;
907 *q
++ = htonl(bmval0
);
908 *q
++ = htonl(bmval1
);
914 static void encode_access(struct xdr_stream
*xdr
, u32 access
, struct compound_hdr
*hdr
)
918 p
= reserve_space(xdr
, 8);
919 *p
++ = cpu_to_be32(OP_ACCESS
);
920 *p
= cpu_to_be32(access
);
922 hdr
->replen
+= decode_access_maxsz
;
925 static void encode_close(struct xdr_stream
*xdr
, const struct nfs_closeargs
*arg
, struct compound_hdr
*hdr
)
929 p
= reserve_space(xdr
, 8+NFS4_STATEID_SIZE
);
930 *p
++ = cpu_to_be32(OP_CLOSE
);
931 *p
++ = cpu_to_be32(arg
->seqid
->sequence
->counter
);
932 xdr_encode_opaque_fixed(p
, arg
->stateid
->data
, NFS4_STATEID_SIZE
);
934 hdr
->replen
+= decode_close_maxsz
;
937 static void encode_commit(struct xdr_stream
*xdr
, const struct nfs_writeargs
*args
, struct compound_hdr
*hdr
)
941 p
= reserve_space(xdr
, 16);
942 *p
++ = cpu_to_be32(OP_COMMIT
);
943 p
= xdr_encode_hyper(p
, args
->offset
);
944 *p
= cpu_to_be32(args
->count
);
946 hdr
->replen
+= decode_commit_maxsz
;
949 static void encode_create(struct xdr_stream
*xdr
, const struct nfs4_create_arg
*create
, struct compound_hdr
*hdr
)
953 p
= reserve_space(xdr
, 8);
954 *p
++ = cpu_to_be32(OP_CREATE
);
955 *p
= cpu_to_be32(create
->ftype
);
957 switch (create
->ftype
) {
959 p
= reserve_space(xdr
, 4);
960 *p
= cpu_to_be32(create
->u
.symlink
.len
);
961 xdr_write_pages(xdr
, create
->u
.symlink
.pages
, 0, create
->u
.symlink
.len
);
964 case NF4BLK
: case NF4CHR
:
965 p
= reserve_space(xdr
, 8);
966 *p
++ = cpu_to_be32(create
->u
.device
.specdata1
);
967 *p
= cpu_to_be32(create
->u
.device
.specdata2
);
974 encode_string(xdr
, create
->name
->len
, create
->name
->name
);
976 hdr
->replen
+= decode_create_maxsz
;
978 encode_attrs(xdr
, create
->attrs
, create
->server
);
981 static void encode_getattr_one(struct xdr_stream
*xdr
, uint32_t bitmap
, struct compound_hdr
*hdr
)
985 p
= reserve_space(xdr
, 12);
986 *p
++ = cpu_to_be32(OP_GETATTR
);
987 *p
++ = cpu_to_be32(1);
988 *p
= cpu_to_be32(bitmap
);
990 hdr
->replen
+= decode_getattr_maxsz
;
993 static void encode_getattr_two(struct xdr_stream
*xdr
, uint32_t bm0
, uint32_t bm1
, struct compound_hdr
*hdr
)
997 p
= reserve_space(xdr
, 16);
998 *p
++ = cpu_to_be32(OP_GETATTR
);
999 *p
++ = cpu_to_be32(2);
1000 *p
++ = cpu_to_be32(bm0
);
1001 *p
= cpu_to_be32(bm1
);
1003 hdr
->replen
+= decode_getattr_maxsz
;
1006 static void encode_getfattr(struct xdr_stream
*xdr
, const u32
* bitmask
, struct compound_hdr
*hdr
)
1008 encode_getattr_two(xdr
, bitmask
[0] & nfs4_fattr_bitmap
[0],
1009 bitmask
[1] & nfs4_fattr_bitmap
[1], hdr
);
1012 static void encode_fsinfo(struct xdr_stream
*xdr
, const u32
* bitmask
, struct compound_hdr
*hdr
)
1014 encode_getattr_two(xdr
, bitmask
[0] & nfs4_fsinfo_bitmap
[0],
1015 bitmask
[1] & nfs4_fsinfo_bitmap
[1], hdr
);
1018 static void encode_fs_locations(struct xdr_stream
*xdr
, const u32
* bitmask
, struct compound_hdr
*hdr
)
1020 encode_getattr_two(xdr
, bitmask
[0] & nfs4_fs_locations_bitmap
[0],
1021 bitmask
[1] & nfs4_fs_locations_bitmap
[1], hdr
);
1024 static void encode_getfh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1028 p
= reserve_space(xdr
, 4);
1029 *p
= cpu_to_be32(OP_GETFH
);
1031 hdr
->replen
+= decode_getfh_maxsz
;
1034 static void encode_link(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1038 p
= reserve_space(xdr
, 8 + name
->len
);
1039 *p
++ = cpu_to_be32(OP_LINK
);
1040 xdr_encode_opaque(p
, name
->name
, name
->len
);
1042 hdr
->replen
+= decode_link_maxsz
;
1045 static inline int nfs4_lock_type(struct file_lock
*fl
, int block
)
1047 if ((fl
->fl_type
& (F_RDLCK
|F_WRLCK
|F_UNLCK
)) == F_RDLCK
)
1048 return block
? NFS4_READW_LT
: NFS4_READ_LT
;
1049 return block
? NFS4_WRITEW_LT
: NFS4_WRITE_LT
;
1052 static inline uint64_t nfs4_lock_length(struct file_lock
*fl
)
1054 if (fl
->fl_end
== OFFSET_MAX
)
1055 return ~(uint64_t)0;
1056 return fl
->fl_end
- fl
->fl_start
+ 1;
1059 static void encode_lockowner(struct xdr_stream
*xdr
, const struct nfs_lowner
*lowner
)
1063 p
= reserve_space(xdr
, 28);
1064 p
= xdr_encode_hyper(p
, lowner
->clientid
);
1065 *p
++ = cpu_to_be32(16);
1066 p
= xdr_encode_opaque_fixed(p
, "lock id:", 8);
1067 xdr_encode_hyper(p
, lowner
->id
);
1071 * opcode,type,reclaim,offset,length,new_lock_owner = 32
1072 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
1074 static void encode_lock(struct xdr_stream
*xdr
, const struct nfs_lock_args
*args
, struct compound_hdr
*hdr
)
1078 p
= reserve_space(xdr
, 32);
1079 *p
++ = cpu_to_be32(OP_LOCK
);
1080 *p
++ = cpu_to_be32(nfs4_lock_type(args
->fl
, args
->block
));
1081 *p
++ = cpu_to_be32(args
->reclaim
);
1082 p
= xdr_encode_hyper(p
, args
->fl
->fl_start
);
1083 p
= xdr_encode_hyper(p
, nfs4_lock_length(args
->fl
));
1084 *p
= cpu_to_be32(args
->new_lock_owner
);
1085 if (args
->new_lock_owner
){
1086 p
= reserve_space(xdr
, 4+NFS4_STATEID_SIZE
+4);
1087 *p
++ = cpu_to_be32(args
->open_seqid
->sequence
->counter
);
1088 p
= xdr_encode_opaque_fixed(p
, args
->open_stateid
->data
, NFS4_STATEID_SIZE
);
1089 *p
++ = cpu_to_be32(args
->lock_seqid
->sequence
->counter
);
1090 encode_lockowner(xdr
, &args
->lock_owner
);
1093 p
= reserve_space(xdr
, NFS4_STATEID_SIZE
+4);
1094 p
= xdr_encode_opaque_fixed(p
, args
->lock_stateid
->data
, NFS4_STATEID_SIZE
);
1095 *p
= cpu_to_be32(args
->lock_seqid
->sequence
->counter
);
1098 hdr
->replen
+= decode_lock_maxsz
;
1101 static void encode_lockt(struct xdr_stream
*xdr
, const struct nfs_lockt_args
*args
, struct compound_hdr
*hdr
)
1105 p
= reserve_space(xdr
, 24);
1106 *p
++ = cpu_to_be32(OP_LOCKT
);
1107 *p
++ = cpu_to_be32(nfs4_lock_type(args
->fl
, 0));
1108 p
= xdr_encode_hyper(p
, args
->fl
->fl_start
);
1109 p
= xdr_encode_hyper(p
, nfs4_lock_length(args
->fl
));
1110 encode_lockowner(xdr
, &args
->lock_owner
);
1112 hdr
->replen
+= decode_lockt_maxsz
;
1115 static void encode_locku(struct xdr_stream
*xdr
, const struct nfs_locku_args
*args
, struct compound_hdr
*hdr
)
1119 p
= reserve_space(xdr
, 12+NFS4_STATEID_SIZE
+16);
1120 *p
++ = cpu_to_be32(OP_LOCKU
);
1121 *p
++ = cpu_to_be32(nfs4_lock_type(args
->fl
, 0));
1122 *p
++ = cpu_to_be32(args
->seqid
->sequence
->counter
);
1123 p
= xdr_encode_opaque_fixed(p
, args
->stateid
->data
, NFS4_STATEID_SIZE
);
1124 p
= xdr_encode_hyper(p
, args
->fl
->fl_start
);
1125 xdr_encode_hyper(p
, nfs4_lock_length(args
->fl
));
1127 hdr
->replen
+= decode_locku_maxsz
;
1130 static void encode_release_lockowner(struct xdr_stream
*xdr
, const struct nfs_lowner
*lowner
, struct compound_hdr
*hdr
)
1134 p
= reserve_space(xdr
, 4);
1135 *p
= cpu_to_be32(OP_RELEASE_LOCKOWNER
);
1136 encode_lockowner(xdr
, lowner
);
1138 hdr
->replen
+= decode_release_lockowner_maxsz
;
1141 static void encode_lookup(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1143 int len
= name
->len
;
1146 p
= reserve_space(xdr
, 8 + len
);
1147 *p
++ = cpu_to_be32(OP_LOOKUP
);
1148 xdr_encode_opaque(p
, name
->name
, len
);
1150 hdr
->replen
+= decode_lookup_maxsz
;
1153 static void encode_share_access(struct xdr_stream
*xdr
, fmode_t fmode
)
1157 p
= reserve_space(xdr
, 8);
1158 switch (fmode
& (FMODE_READ
|FMODE_WRITE
)) {
1160 *p
++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ
);
1163 *p
++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE
);
1165 case FMODE_READ
|FMODE_WRITE
:
1166 *p
++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH
);
1169 *p
++ = cpu_to_be32(0);
1171 *p
= cpu_to_be32(0); /* for linux, share_deny = 0 always */
1174 static inline void encode_openhdr(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
1178 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1181 p
= reserve_space(xdr
, 8);
1182 *p
++ = cpu_to_be32(OP_OPEN
);
1183 *p
= cpu_to_be32(arg
->seqid
->sequence
->counter
);
1184 encode_share_access(xdr
, arg
->fmode
);
1185 p
= reserve_space(xdr
, 28);
1186 p
= xdr_encode_hyper(p
, arg
->clientid
);
1187 *p
++ = cpu_to_be32(16);
1188 p
= xdr_encode_opaque_fixed(p
, "open id:", 8);
1189 xdr_encode_hyper(p
, arg
->id
);
1192 static inline void encode_createmode(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
1195 struct nfs_client
*clp
;
1197 p
= reserve_space(xdr
, 4);
1198 switch(arg
->open_flags
& O_EXCL
) {
1200 *p
= cpu_to_be32(NFS4_CREATE_UNCHECKED
);
1201 encode_attrs(xdr
, arg
->u
.attrs
, arg
->server
);
1204 clp
= arg
->server
->nfs_client
;
1205 if (clp
->cl_mvops
->minor_version
> 0) {
1206 if (nfs4_has_persistent_session(clp
)) {
1207 *p
= cpu_to_be32(NFS4_CREATE_GUARDED
);
1208 encode_attrs(xdr
, arg
->u
.attrs
, arg
->server
);
1212 *p
= cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1
);
1213 encode_nfs4_verifier(xdr
, &arg
->u
.verifier
);
1215 encode_attrs(xdr
, &dummy
, arg
->server
);
1218 *p
= cpu_to_be32(NFS4_CREATE_EXCLUSIVE
);
1219 encode_nfs4_verifier(xdr
, &arg
->u
.verifier
);
1224 static void encode_opentype(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
1228 p
= reserve_space(xdr
, 4);
1229 switch (arg
->open_flags
& O_CREAT
) {
1231 *p
= cpu_to_be32(NFS4_OPEN_NOCREATE
);
1234 BUG_ON(arg
->claim
!= NFS4_OPEN_CLAIM_NULL
);
1235 *p
= cpu_to_be32(NFS4_OPEN_CREATE
);
1236 encode_createmode(xdr
, arg
);
1240 static inline void encode_delegation_type(struct xdr_stream
*xdr
, fmode_t delegation_type
)
1244 p
= reserve_space(xdr
, 4);
1245 switch (delegation_type
) {
1247 *p
= cpu_to_be32(NFS4_OPEN_DELEGATE_NONE
);
1250 *p
= cpu_to_be32(NFS4_OPEN_DELEGATE_READ
);
1252 case FMODE_WRITE
|FMODE_READ
:
1253 *p
= cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE
);
1260 static inline void encode_claim_null(struct xdr_stream
*xdr
, const struct qstr
*name
)
1264 p
= reserve_space(xdr
, 4);
1265 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_NULL
);
1266 encode_string(xdr
, name
->len
, name
->name
);
1269 static inline void encode_claim_previous(struct xdr_stream
*xdr
, fmode_t type
)
1273 p
= reserve_space(xdr
, 4);
1274 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS
);
1275 encode_delegation_type(xdr
, type
);
1278 static inline void encode_claim_delegate_cur(struct xdr_stream
*xdr
, const struct qstr
*name
, const nfs4_stateid
*stateid
)
1282 p
= reserve_space(xdr
, 4+NFS4_STATEID_SIZE
);
1283 *p
++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR
);
1284 xdr_encode_opaque_fixed(p
, stateid
->data
, NFS4_STATEID_SIZE
);
1285 encode_string(xdr
, name
->len
, name
->name
);
1288 static void encode_open(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
, struct compound_hdr
*hdr
)
1290 encode_openhdr(xdr
, arg
);
1291 encode_opentype(xdr
, arg
);
1292 switch (arg
->claim
) {
1293 case NFS4_OPEN_CLAIM_NULL
:
1294 encode_claim_null(xdr
, arg
->name
);
1296 case NFS4_OPEN_CLAIM_PREVIOUS
:
1297 encode_claim_previous(xdr
, arg
->u
.delegation_type
);
1299 case NFS4_OPEN_CLAIM_DELEGATE_CUR
:
1300 encode_claim_delegate_cur(xdr
, arg
->name
, &arg
->u
.delegation
);
1306 hdr
->replen
+= decode_open_maxsz
;
1309 static void encode_open_confirm(struct xdr_stream
*xdr
, const struct nfs_open_confirmargs
*arg
, struct compound_hdr
*hdr
)
1313 p
= reserve_space(xdr
, 4+NFS4_STATEID_SIZE
+4);
1314 *p
++ = cpu_to_be32(OP_OPEN_CONFIRM
);
1315 p
= xdr_encode_opaque_fixed(p
, arg
->stateid
->data
, NFS4_STATEID_SIZE
);
1316 *p
= cpu_to_be32(arg
->seqid
->sequence
->counter
);
1318 hdr
->replen
+= decode_open_confirm_maxsz
;
1321 static void encode_open_downgrade(struct xdr_stream
*xdr
, const struct nfs_closeargs
*arg
, struct compound_hdr
*hdr
)
1325 p
= reserve_space(xdr
, 4+NFS4_STATEID_SIZE
+4);
1326 *p
++ = cpu_to_be32(OP_OPEN_DOWNGRADE
);
1327 p
= xdr_encode_opaque_fixed(p
, arg
->stateid
->data
, NFS4_STATEID_SIZE
);
1328 *p
= cpu_to_be32(arg
->seqid
->sequence
->counter
);
1329 encode_share_access(xdr
, arg
->fmode
);
1331 hdr
->replen
+= decode_open_downgrade_maxsz
;
1335 encode_putfh(struct xdr_stream
*xdr
, const struct nfs_fh
*fh
, struct compound_hdr
*hdr
)
1340 p
= reserve_space(xdr
, 8 + len
);
1341 *p
++ = cpu_to_be32(OP_PUTFH
);
1342 xdr_encode_opaque(p
, fh
->data
, len
);
1344 hdr
->replen
+= decode_putfh_maxsz
;
1347 static void encode_putrootfh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1351 p
= reserve_space(xdr
, 4);
1352 *p
= cpu_to_be32(OP_PUTROOTFH
);
1354 hdr
->replen
+= decode_putrootfh_maxsz
;
1357 static void encode_stateid(struct xdr_stream
*xdr
, const struct nfs_open_context
*ctx
, const struct nfs_lock_context
*l_ctx
)
1359 nfs4_stateid stateid
;
1362 p
= reserve_space(xdr
, NFS4_STATEID_SIZE
);
1363 if (ctx
->state
!= NULL
) {
1364 nfs4_copy_stateid(&stateid
, ctx
->state
, l_ctx
->lockowner
, l_ctx
->pid
);
1365 xdr_encode_opaque_fixed(p
, stateid
.data
, NFS4_STATEID_SIZE
);
1367 xdr_encode_opaque_fixed(p
, zero_stateid
.data
, NFS4_STATEID_SIZE
);
1370 static void encode_read(struct xdr_stream
*xdr
, const struct nfs_readargs
*args
, struct compound_hdr
*hdr
)
1374 p
= reserve_space(xdr
, 4);
1375 *p
= cpu_to_be32(OP_READ
);
1377 encode_stateid(xdr
, args
->context
, args
->lock_context
);
1379 p
= reserve_space(xdr
, 12);
1380 p
= xdr_encode_hyper(p
, args
->offset
);
1381 *p
= cpu_to_be32(args
->count
);
1383 hdr
->replen
+= decode_read_maxsz
;
1386 static void encode_readdir(struct xdr_stream
*xdr
, const struct nfs4_readdir_arg
*readdir
, struct rpc_rqst
*req
, struct compound_hdr
*hdr
)
1388 uint32_t attrs
[2] = {0, 0};
1391 if (readdir
->plus
) {
1392 attrs
[0] |= FATTR4_WORD0_TYPE
|FATTR4_WORD0_CHANGE
|FATTR4_WORD0_SIZE
|
1393 FATTR4_WORD0_FSID
|FATTR4_WORD0_FILEHANDLE
;
1394 attrs
[1] |= FATTR4_WORD1_MODE
|FATTR4_WORD1_NUMLINKS
|FATTR4_WORD1_OWNER
|
1395 FATTR4_WORD1_OWNER_GROUP
|FATTR4_WORD1_RAWDEV
|
1396 FATTR4_WORD1_SPACE_USED
|FATTR4_WORD1_TIME_ACCESS
|
1397 FATTR4_WORD1_TIME_METADATA
|FATTR4_WORD1_TIME_MODIFY
;
1399 attrs
[0] |= FATTR4_WORD0_RDATTR_ERROR
|FATTR4_WORD0_FILEID
;
1400 attrs
[1] |= FATTR4_WORD1_MOUNTED_ON_FILEID
;
1402 p
= reserve_space(xdr
, 12+NFS4_VERIFIER_SIZE
+20);
1403 *p
++ = cpu_to_be32(OP_READDIR
);
1404 p
= xdr_encode_hyper(p
, readdir
->cookie
);
1405 p
= xdr_encode_opaque_fixed(p
, readdir
->verifier
.data
, NFS4_VERIFIER_SIZE
);
1406 *p
++ = cpu_to_be32(readdir
->count
>> 1); /* We're not doing readdirplus */
1407 *p
++ = cpu_to_be32(readdir
->count
);
1408 *p
++ = cpu_to_be32(2);
1410 if (!readdir
->plus
) {
1411 /* Switch to mounted_on_fileid if the server supports it */
1412 if (readdir
->bitmask
[1] & FATTR4_WORD1_MOUNTED_ON_FILEID
)
1413 attrs
[0] &= ~FATTR4_WORD0_FILEID
;
1415 attrs
[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID
;
1418 *p
++ = cpu_to_be32(attrs
[0] & readdir
->bitmask
[0]);
1419 *p
= cpu_to_be32(attrs
[1] & readdir
->bitmask
[1]);
1421 hdr
->replen
+= decode_readdir_maxsz
;
1422 dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n",
1424 (unsigned long long)readdir
->cookie
,
1425 ((u32
*)readdir
->verifier
.data
)[0],
1426 ((u32
*)readdir
->verifier
.data
)[1],
1427 attrs
[0] & readdir
->bitmask
[0],
1428 attrs
[1] & readdir
->bitmask
[1]);
1431 static void encode_readlink(struct xdr_stream
*xdr
, const struct nfs4_readlink
*readlink
, struct rpc_rqst
*req
, struct compound_hdr
*hdr
)
1435 p
= reserve_space(xdr
, 4);
1436 *p
= cpu_to_be32(OP_READLINK
);
1438 hdr
->replen
+= decode_readlink_maxsz
;
1441 static void encode_remove(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1445 p
= reserve_space(xdr
, 8 + name
->len
);
1446 *p
++ = cpu_to_be32(OP_REMOVE
);
1447 xdr_encode_opaque(p
, name
->name
, name
->len
);
1449 hdr
->replen
+= decode_remove_maxsz
;
1452 static void encode_rename(struct xdr_stream
*xdr
, const struct qstr
*oldname
, const struct qstr
*newname
, struct compound_hdr
*hdr
)
1456 p
= reserve_space(xdr
, 4);
1457 *p
= cpu_to_be32(OP_RENAME
);
1458 encode_string(xdr
, oldname
->len
, oldname
->name
);
1459 encode_string(xdr
, newname
->len
, newname
->name
);
1461 hdr
->replen
+= decode_rename_maxsz
;
1464 static void encode_renew(struct xdr_stream
*xdr
, const struct nfs_client
*client_stateid
, struct compound_hdr
*hdr
)
1468 p
= reserve_space(xdr
, 12);
1469 *p
++ = cpu_to_be32(OP_RENEW
);
1470 xdr_encode_hyper(p
, client_stateid
->cl_clientid
);
1472 hdr
->replen
+= decode_renew_maxsz
;
1476 encode_restorefh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1480 p
= reserve_space(xdr
, 4);
1481 *p
= cpu_to_be32(OP_RESTOREFH
);
1483 hdr
->replen
+= decode_restorefh_maxsz
;
1487 encode_setacl(struct xdr_stream
*xdr
, struct nfs_setaclargs
*arg
, struct compound_hdr
*hdr
)
1491 p
= reserve_space(xdr
, 4+NFS4_STATEID_SIZE
);
1492 *p
++ = cpu_to_be32(OP_SETATTR
);
1493 xdr_encode_opaque_fixed(p
, zero_stateid
.data
, NFS4_STATEID_SIZE
);
1494 p
= reserve_space(xdr
, 2*4);
1495 *p
++ = cpu_to_be32(1);
1496 *p
= cpu_to_be32(FATTR4_WORD0_ACL
);
1497 if (arg
->acl_len
% 4)
1499 p
= reserve_space(xdr
, 4);
1500 *p
= cpu_to_be32(arg
->acl_len
);
1501 xdr_write_pages(xdr
, arg
->acl_pages
, arg
->acl_pgbase
, arg
->acl_len
);
1503 hdr
->replen
+= decode_setacl_maxsz
;
1508 encode_savefh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1512 p
= reserve_space(xdr
, 4);
1513 *p
= cpu_to_be32(OP_SAVEFH
);
1515 hdr
->replen
+= decode_savefh_maxsz
;
1518 static void encode_setattr(struct xdr_stream
*xdr
, const struct nfs_setattrargs
*arg
, const struct nfs_server
*server
, struct compound_hdr
*hdr
)
1522 p
= reserve_space(xdr
, 4+NFS4_STATEID_SIZE
);
1523 *p
++ = cpu_to_be32(OP_SETATTR
);
1524 xdr_encode_opaque_fixed(p
, arg
->stateid
.data
, NFS4_STATEID_SIZE
);
1526 hdr
->replen
+= decode_setattr_maxsz
;
1527 encode_attrs(xdr
, arg
->iap
, server
);
1530 static void encode_setclientid(struct xdr_stream
*xdr
, const struct nfs4_setclientid
*setclientid
, struct compound_hdr
*hdr
)
1534 p
= reserve_space(xdr
, 4 + NFS4_VERIFIER_SIZE
);
1535 *p
++ = cpu_to_be32(OP_SETCLIENTID
);
1536 xdr_encode_opaque_fixed(p
, setclientid
->sc_verifier
->data
, NFS4_VERIFIER_SIZE
);
1538 encode_string(xdr
, setclientid
->sc_name_len
, setclientid
->sc_name
);
1539 p
= reserve_space(xdr
, 4);
1540 *p
= cpu_to_be32(setclientid
->sc_prog
);
1541 encode_string(xdr
, setclientid
->sc_netid_len
, setclientid
->sc_netid
);
1542 encode_string(xdr
, setclientid
->sc_uaddr_len
, setclientid
->sc_uaddr
);
1543 p
= reserve_space(xdr
, 4);
1544 *p
= cpu_to_be32(setclientid
->sc_cb_ident
);
1546 hdr
->replen
+= decode_setclientid_maxsz
;
1549 static void encode_setclientid_confirm(struct xdr_stream
*xdr
, const struct nfs4_setclientid_res
*arg
, struct compound_hdr
*hdr
)
1553 p
= reserve_space(xdr
, 12 + NFS4_VERIFIER_SIZE
);
1554 *p
++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM
);
1555 p
= xdr_encode_hyper(p
, arg
->clientid
);
1556 xdr_encode_opaque_fixed(p
, arg
->confirm
.data
, NFS4_VERIFIER_SIZE
);
1558 hdr
->replen
+= decode_setclientid_confirm_maxsz
;
1561 static void encode_write(struct xdr_stream
*xdr
, const struct nfs_writeargs
*args
, struct compound_hdr
*hdr
)
1565 p
= reserve_space(xdr
, 4);
1566 *p
= cpu_to_be32(OP_WRITE
);
1568 encode_stateid(xdr
, args
->context
, args
->lock_context
);
1570 p
= reserve_space(xdr
, 16);
1571 p
= xdr_encode_hyper(p
, args
->offset
);
1572 *p
++ = cpu_to_be32(args
->stable
);
1573 *p
= cpu_to_be32(args
->count
);
1575 xdr_write_pages(xdr
, args
->pages
, args
->pgbase
, args
->count
);
1577 hdr
->replen
+= decode_write_maxsz
;
1580 static void encode_delegreturn(struct xdr_stream
*xdr
, const nfs4_stateid
*stateid
, struct compound_hdr
*hdr
)
1584 p
= reserve_space(xdr
, 4+NFS4_STATEID_SIZE
);
1586 *p
++ = cpu_to_be32(OP_DELEGRETURN
);
1587 xdr_encode_opaque_fixed(p
, stateid
->data
, NFS4_STATEID_SIZE
);
1589 hdr
->replen
+= decode_delegreturn_maxsz
;
1592 #if defined(CONFIG_NFS_V4_1)
1593 /* NFSv4.1 operations */
1594 static void encode_exchange_id(struct xdr_stream
*xdr
,
1595 struct nfs41_exchange_id_args
*args
,
1596 struct compound_hdr
*hdr
)
1600 p
= reserve_space(xdr
, 4 + sizeof(args
->verifier
->data
));
1601 *p
++ = cpu_to_be32(OP_EXCHANGE_ID
);
1602 xdr_encode_opaque_fixed(p
, args
->verifier
->data
, sizeof(args
->verifier
->data
));
1604 encode_string(xdr
, args
->id_len
, args
->id
);
1606 p
= reserve_space(xdr
, 12);
1607 *p
++ = cpu_to_be32(args
->flags
);
1608 *p
++ = cpu_to_be32(0); /* zero length state_protect4_a */
1609 *p
= cpu_to_be32(0); /* zero length implementation id array */
1611 hdr
->replen
+= decode_exchange_id_maxsz
;
1614 static void encode_create_session(struct xdr_stream
*xdr
,
1615 struct nfs41_create_session_args
*args
,
1616 struct compound_hdr
*hdr
)
1619 char machine_name
[NFS4_MAX_MACHINE_NAME_LEN
];
1621 struct nfs_client
*clp
= args
->client
;
1622 u32 max_resp_sz_cached
;
1625 * Assumes OPEN is the biggest non-idempotent compound.
1626 * 2 is the verifier.
1628 max_resp_sz_cached
= (NFS4_dec_open_sz
+ RPC_REPHDRSIZE
+
1629 RPC_MAX_AUTH_SIZE
+ 2) * XDR_UNIT
;
1631 len
= scnprintf(machine_name
, sizeof(machine_name
), "%s",
1634 p
= reserve_space(xdr
, 20 + 2*28 + 20 + len
+ 12);
1635 *p
++ = cpu_to_be32(OP_CREATE_SESSION
);
1636 p
= xdr_encode_hyper(p
, clp
->cl_ex_clid
);
1637 *p
++ = cpu_to_be32(clp
->cl_seqid
); /*Sequence id */
1638 *p
++ = cpu_to_be32(args
->flags
); /*flags */
1641 *p
++ = cpu_to_be32(args
->fc_attrs
.headerpadsz
); /* header padding size */
1642 *p
++ = cpu_to_be32(args
->fc_attrs
.max_rqst_sz
); /* max req size */
1643 *p
++ = cpu_to_be32(args
->fc_attrs
.max_resp_sz
); /* max resp size */
1644 *p
++ = cpu_to_be32(max_resp_sz_cached
); /* Max resp sz cached */
1645 *p
++ = cpu_to_be32(args
->fc_attrs
.max_ops
); /* max operations */
1646 *p
++ = cpu_to_be32(args
->fc_attrs
.max_reqs
); /* max requests */
1647 *p
++ = cpu_to_be32(0); /* rdmachannel_attrs */
1650 *p
++ = cpu_to_be32(args
->fc_attrs
.headerpadsz
); /* header padding size */
1651 *p
++ = cpu_to_be32(args
->bc_attrs
.max_rqst_sz
); /* max req size */
1652 *p
++ = cpu_to_be32(args
->bc_attrs
.max_resp_sz
); /* max resp size */
1653 *p
++ = cpu_to_be32(args
->bc_attrs
.max_resp_sz_cached
); /* Max resp sz cached */
1654 *p
++ = cpu_to_be32(args
->bc_attrs
.max_ops
); /* max operations */
1655 *p
++ = cpu_to_be32(args
->bc_attrs
.max_reqs
); /* max requests */
1656 *p
++ = cpu_to_be32(0); /* rdmachannel_attrs */
1658 *p
++ = cpu_to_be32(args
->cb_program
); /* cb_program */
1659 *p
++ = cpu_to_be32(1);
1660 *p
++ = cpu_to_be32(RPC_AUTH_UNIX
); /* auth_sys */
1662 /* authsys_parms rfc1831 */
1663 *p
++ = cpu_to_be32((u32
)clp
->cl_boot_time
.tv_nsec
); /* stamp */
1664 p
= xdr_encode_opaque(p
, machine_name
, len
);
1665 *p
++ = cpu_to_be32(0); /* UID */
1666 *p
++ = cpu_to_be32(0); /* GID */
1667 *p
= cpu_to_be32(0); /* No more gids */
1669 hdr
->replen
+= decode_create_session_maxsz
;
1672 static void encode_destroy_session(struct xdr_stream
*xdr
,
1673 struct nfs4_session
*session
,
1674 struct compound_hdr
*hdr
)
1677 p
= reserve_space(xdr
, 4 + NFS4_MAX_SESSIONID_LEN
);
1678 *p
++ = cpu_to_be32(OP_DESTROY_SESSION
);
1679 xdr_encode_opaque_fixed(p
, session
->sess_id
.data
, NFS4_MAX_SESSIONID_LEN
);
1681 hdr
->replen
+= decode_destroy_session_maxsz
;
1684 static void encode_reclaim_complete(struct xdr_stream
*xdr
,
1685 struct nfs41_reclaim_complete_args
*args
,
1686 struct compound_hdr
*hdr
)
1690 p
= reserve_space(xdr
, 8);
1691 *p
++ = cpu_to_be32(OP_RECLAIM_COMPLETE
);
1692 *p
++ = cpu_to_be32(args
->one_fs
);
1694 hdr
->replen
+= decode_reclaim_complete_maxsz
;
1696 #endif /* CONFIG_NFS_V4_1 */
1698 static void encode_sequence(struct xdr_stream
*xdr
,
1699 const struct nfs4_sequence_args
*args
,
1700 struct compound_hdr
*hdr
)
1702 #if defined(CONFIG_NFS_V4_1)
1703 struct nfs4_session
*session
= args
->sa_session
;
1704 struct nfs4_slot_table
*tp
;
1705 struct nfs4_slot
*slot
;
1711 tp
= &session
->fc_slot_table
;
1713 WARN_ON(args
->sa_slotid
== NFS4_MAX_SLOT_TABLE
);
1714 slot
= tp
->slots
+ args
->sa_slotid
;
1716 p
= reserve_space(xdr
, 4 + NFS4_MAX_SESSIONID_LEN
+ 16);
1717 *p
++ = cpu_to_be32(OP_SEQUENCE
);
1720 * Sessionid + seqid + slotid + max slotid + cache_this
1722 dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
1723 "max_slotid=%d cache_this=%d\n",
1725 ((u32
*)session
->sess_id
.data
)[0],
1726 ((u32
*)session
->sess_id
.data
)[1],
1727 ((u32
*)session
->sess_id
.data
)[2],
1728 ((u32
*)session
->sess_id
.data
)[3],
1729 slot
->seq_nr
, args
->sa_slotid
,
1730 tp
->highest_used_slotid
, args
->sa_cache_this
);
1731 p
= xdr_encode_opaque_fixed(p
, session
->sess_id
.data
, NFS4_MAX_SESSIONID_LEN
);
1732 *p
++ = cpu_to_be32(slot
->seq_nr
);
1733 *p
++ = cpu_to_be32(args
->sa_slotid
);
1734 *p
++ = cpu_to_be32(tp
->highest_used_slotid
);
1735 *p
= cpu_to_be32(args
->sa_cache_this
);
1737 hdr
->replen
+= decode_sequence_maxsz
;
1738 #endif /* CONFIG_NFS_V4_1 */
1742 * END OF "GENERIC" ENCODE ROUTINES.
1745 static u32
nfs4_xdr_minorversion(const struct nfs4_sequence_args
*args
)
1747 #if defined(CONFIG_NFS_V4_1)
1748 if (args
->sa_session
)
1749 return args
->sa_session
->clp
->cl_mvops
->minor_version
;
1750 #endif /* CONFIG_NFS_V4_1 */
1755 * Encode an ACCESS request
1757 static int nfs4_xdr_enc_access(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_accessargs
*args
)
1759 struct xdr_stream xdr
;
1760 struct compound_hdr hdr
= {
1761 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1764 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1765 encode_compound_hdr(&xdr
, req
, &hdr
);
1766 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1767 encode_putfh(&xdr
, args
->fh
, &hdr
);
1768 encode_access(&xdr
, args
->access
, &hdr
);
1769 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1775 * Encode LOOKUP request
1777 static int nfs4_xdr_enc_lookup(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_lookup_arg
*args
)
1779 struct xdr_stream xdr
;
1780 struct compound_hdr hdr
= {
1781 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1784 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1785 encode_compound_hdr(&xdr
, req
, &hdr
);
1786 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1787 encode_putfh(&xdr
, args
->dir_fh
, &hdr
);
1788 encode_lookup(&xdr
, args
->name
, &hdr
);
1789 encode_getfh(&xdr
, &hdr
);
1790 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1796 * Encode LOOKUP_ROOT request
1798 static int nfs4_xdr_enc_lookup_root(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_lookup_root_arg
*args
)
1800 struct xdr_stream xdr
;
1801 struct compound_hdr hdr
= {
1802 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1805 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1806 encode_compound_hdr(&xdr
, req
, &hdr
);
1807 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1808 encode_putrootfh(&xdr
, &hdr
);
1809 encode_getfh(&xdr
, &hdr
);
1810 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1816 * Encode REMOVE request
1818 static int nfs4_xdr_enc_remove(struct rpc_rqst
*req
, __be32
*p
, const struct nfs_removeargs
*args
)
1820 struct xdr_stream xdr
;
1821 struct compound_hdr hdr
= {
1822 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1825 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1826 encode_compound_hdr(&xdr
, req
, &hdr
);
1827 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1828 encode_putfh(&xdr
, args
->fh
, &hdr
);
1829 encode_remove(&xdr
, &args
->name
, &hdr
);
1830 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1836 * Encode RENAME request
1838 static int nfs4_xdr_enc_rename(struct rpc_rqst
*req
, __be32
*p
, const struct nfs_renameargs
*args
)
1840 struct xdr_stream xdr
;
1841 struct compound_hdr hdr
= {
1842 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1845 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1846 encode_compound_hdr(&xdr
, req
, &hdr
);
1847 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1848 encode_putfh(&xdr
, args
->old_dir
, &hdr
);
1849 encode_savefh(&xdr
, &hdr
);
1850 encode_putfh(&xdr
, args
->new_dir
, &hdr
);
1851 encode_rename(&xdr
, args
->old_name
, args
->new_name
, &hdr
);
1852 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1853 encode_restorefh(&xdr
, &hdr
);
1854 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1860 * Encode LINK request
1862 static int nfs4_xdr_enc_link(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_link_arg
*args
)
1864 struct xdr_stream xdr
;
1865 struct compound_hdr hdr
= {
1866 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1869 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1870 encode_compound_hdr(&xdr
, req
, &hdr
);
1871 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1872 encode_putfh(&xdr
, args
->fh
, &hdr
);
1873 encode_savefh(&xdr
, &hdr
);
1874 encode_putfh(&xdr
, args
->dir_fh
, &hdr
);
1875 encode_link(&xdr
, args
->name
, &hdr
);
1876 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1877 encode_restorefh(&xdr
, &hdr
);
1878 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1884 * Encode CREATE request
1886 static int nfs4_xdr_enc_create(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_create_arg
*args
)
1888 struct xdr_stream xdr
;
1889 struct compound_hdr hdr
= {
1890 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1893 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1894 encode_compound_hdr(&xdr
, req
, &hdr
);
1895 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1896 encode_putfh(&xdr
, args
->dir_fh
, &hdr
);
1897 encode_savefh(&xdr
, &hdr
);
1898 encode_create(&xdr
, args
, &hdr
);
1899 encode_getfh(&xdr
, &hdr
);
1900 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1901 encode_restorefh(&xdr
, &hdr
);
1902 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1908 * Encode SYMLINK request
1910 static int nfs4_xdr_enc_symlink(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_create_arg
*args
)
1912 return nfs4_xdr_enc_create(req
, p
, args
);
1916 * Encode GETATTR request
1918 static int nfs4_xdr_enc_getattr(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_getattr_arg
*args
)
1920 struct xdr_stream xdr
;
1921 struct compound_hdr hdr
= {
1922 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1925 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1926 encode_compound_hdr(&xdr
, req
, &hdr
);
1927 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1928 encode_putfh(&xdr
, args
->fh
, &hdr
);
1929 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1935 * Encode a CLOSE request
1937 static int nfs4_xdr_enc_close(struct rpc_rqst
*req
, __be32
*p
, struct nfs_closeargs
*args
)
1939 struct xdr_stream xdr
;
1940 struct compound_hdr hdr
= {
1941 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1944 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1945 encode_compound_hdr(&xdr
, req
, &hdr
);
1946 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1947 encode_putfh(&xdr
, args
->fh
, &hdr
);
1948 encode_close(&xdr
, args
, &hdr
);
1949 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1955 * Encode an OPEN request
1957 static int nfs4_xdr_enc_open(struct rpc_rqst
*req
, __be32
*p
, struct nfs_openargs
*args
)
1959 struct xdr_stream xdr
;
1960 struct compound_hdr hdr
= {
1961 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
1964 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1965 encode_compound_hdr(&xdr
, req
, &hdr
);
1966 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
1967 encode_putfh(&xdr
, args
->fh
, &hdr
);
1968 encode_savefh(&xdr
, &hdr
);
1969 encode_open(&xdr
, args
, &hdr
);
1970 encode_getfh(&xdr
, &hdr
);
1971 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1972 encode_restorefh(&xdr
, &hdr
);
1973 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
1979 * Encode an OPEN_CONFIRM request
1981 static int nfs4_xdr_enc_open_confirm(struct rpc_rqst
*req
, __be32
*p
, struct nfs_open_confirmargs
*args
)
1983 struct xdr_stream xdr
;
1984 struct compound_hdr hdr
= {
1988 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
1989 encode_compound_hdr(&xdr
, req
, &hdr
);
1990 encode_putfh(&xdr
, args
->fh
, &hdr
);
1991 encode_open_confirm(&xdr
, args
, &hdr
);
1997 * Encode an OPEN request with no attributes.
1999 static int nfs4_xdr_enc_open_noattr(struct rpc_rqst
*req
, __be32
*p
, struct nfs_openargs
*args
)
2001 struct xdr_stream xdr
;
2002 struct compound_hdr hdr
= {
2003 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2006 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2007 encode_compound_hdr(&xdr
, req
, &hdr
);
2008 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2009 encode_putfh(&xdr
, args
->fh
, &hdr
);
2010 encode_open(&xdr
, args
, &hdr
);
2011 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
2017 * Encode an OPEN_DOWNGRADE request
2019 static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst
*req
, __be32
*p
, struct nfs_closeargs
*args
)
2021 struct xdr_stream xdr
;
2022 struct compound_hdr hdr
= {
2023 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2026 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2027 encode_compound_hdr(&xdr
, req
, &hdr
);
2028 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2029 encode_putfh(&xdr
, args
->fh
, &hdr
);
2030 encode_open_downgrade(&xdr
, args
, &hdr
);
2031 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
2037 * Encode a LOCK request
2039 static int nfs4_xdr_enc_lock(struct rpc_rqst
*req
, __be32
*p
, struct nfs_lock_args
*args
)
2041 struct xdr_stream xdr
;
2042 struct compound_hdr hdr
= {
2043 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2046 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2047 encode_compound_hdr(&xdr
, req
, &hdr
);
2048 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2049 encode_putfh(&xdr
, args
->fh
, &hdr
);
2050 encode_lock(&xdr
, args
, &hdr
);
2056 * Encode a LOCKT request
2058 static int nfs4_xdr_enc_lockt(struct rpc_rqst
*req
, __be32
*p
, struct nfs_lockt_args
*args
)
2060 struct xdr_stream xdr
;
2061 struct compound_hdr hdr
= {
2062 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2065 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2066 encode_compound_hdr(&xdr
, req
, &hdr
);
2067 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2068 encode_putfh(&xdr
, args
->fh
, &hdr
);
2069 encode_lockt(&xdr
, args
, &hdr
);
2075 * Encode a LOCKU request
2077 static int nfs4_xdr_enc_locku(struct rpc_rqst
*req
, __be32
*p
, struct nfs_locku_args
*args
)
2079 struct xdr_stream xdr
;
2080 struct compound_hdr hdr
= {
2081 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2084 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2085 encode_compound_hdr(&xdr
, req
, &hdr
);
2086 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2087 encode_putfh(&xdr
, args
->fh
, &hdr
);
2088 encode_locku(&xdr
, args
, &hdr
);
2093 static int nfs4_xdr_enc_release_lockowner(struct rpc_rqst
*req
, __be32
*p
, struct nfs_release_lockowner_args
*args
)
2095 struct xdr_stream xdr
;
2096 struct compound_hdr hdr
= {
2100 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2101 encode_compound_hdr(&xdr
, req
, &hdr
);
2102 encode_release_lockowner(&xdr
, &args
->lock_owner
, &hdr
);
2108 * Encode a READLINK request
2110 static int nfs4_xdr_enc_readlink(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_readlink
*args
)
2112 struct xdr_stream xdr
;
2113 struct compound_hdr hdr
= {
2114 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2117 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2118 encode_compound_hdr(&xdr
, req
, &hdr
);
2119 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2120 encode_putfh(&xdr
, args
->fh
, &hdr
);
2121 encode_readlink(&xdr
, args
, req
, &hdr
);
2123 xdr_inline_pages(&req
->rq_rcv_buf
, hdr
.replen
<< 2, args
->pages
,
2124 args
->pgbase
, args
->pglen
);
2130 * Encode a READDIR request
2132 static int nfs4_xdr_enc_readdir(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_readdir_arg
*args
)
2134 struct xdr_stream xdr
;
2135 struct compound_hdr hdr
= {
2136 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2139 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2140 encode_compound_hdr(&xdr
, req
, &hdr
);
2141 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2142 encode_putfh(&xdr
, args
->fh
, &hdr
);
2143 encode_readdir(&xdr
, args
, req
, &hdr
);
2145 xdr_inline_pages(&req
->rq_rcv_buf
, hdr
.replen
<< 2, args
->pages
,
2146 args
->pgbase
, args
->count
);
2147 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
2148 __func__
, hdr
.replen
<< 2, args
->pages
,
2149 args
->pgbase
, args
->count
);
2155 * Encode a READ request
2157 static int nfs4_xdr_enc_read(struct rpc_rqst
*req
, __be32
*p
, struct nfs_readargs
*args
)
2159 struct xdr_stream xdr
;
2160 struct compound_hdr hdr
= {
2161 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2164 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2165 encode_compound_hdr(&xdr
, req
, &hdr
);
2166 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2167 encode_putfh(&xdr
, args
->fh
, &hdr
);
2168 encode_read(&xdr
, args
, &hdr
);
2170 xdr_inline_pages(&req
->rq_rcv_buf
, hdr
.replen
<< 2,
2171 args
->pages
, args
->pgbase
, args
->count
);
2172 req
->rq_rcv_buf
.flags
|= XDRBUF_READ
;
2178 * Encode an SETATTR request
2180 static int nfs4_xdr_enc_setattr(struct rpc_rqst
*req
, __be32
*p
, struct nfs_setattrargs
*args
)
2182 struct xdr_stream xdr
;
2183 struct compound_hdr hdr
= {
2184 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2187 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2188 encode_compound_hdr(&xdr
, req
, &hdr
);
2189 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2190 encode_putfh(&xdr
, args
->fh
, &hdr
);
2191 encode_setattr(&xdr
, args
, args
->server
, &hdr
);
2192 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
2198 * Encode a GETACL request
2201 nfs4_xdr_enc_getacl(struct rpc_rqst
*req
, __be32
*p
,
2202 struct nfs_getaclargs
*args
)
2204 struct xdr_stream xdr
;
2205 struct compound_hdr hdr
= {
2206 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2210 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2211 encode_compound_hdr(&xdr
, req
, &hdr
);
2212 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2213 encode_putfh(&xdr
, args
->fh
, &hdr
);
2214 replen
= hdr
.replen
+ op_decode_hdr_maxsz
+ nfs4_fattr_bitmap_maxsz
+ 1;
2215 encode_getattr_two(&xdr
, FATTR4_WORD0_ACL
, 0, &hdr
);
2217 xdr_inline_pages(&req
->rq_rcv_buf
, replen
<< 2,
2218 args
->acl_pages
, args
->acl_pgbase
, args
->acl_len
);
2224 * Encode a WRITE request
2226 static int nfs4_xdr_enc_write(struct rpc_rqst
*req
, __be32
*p
, struct nfs_writeargs
*args
)
2228 struct xdr_stream xdr
;
2229 struct compound_hdr hdr
= {
2230 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2233 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2234 encode_compound_hdr(&xdr
, req
, &hdr
);
2235 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2236 encode_putfh(&xdr
, args
->fh
, &hdr
);
2237 encode_write(&xdr
, args
, &hdr
);
2238 req
->rq_snd_buf
.flags
|= XDRBUF_WRITE
;
2239 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
2247 static int nfs4_xdr_enc_commit(struct rpc_rqst
*req
, __be32
*p
, struct nfs_writeargs
*args
)
2249 struct xdr_stream xdr
;
2250 struct compound_hdr hdr
= {
2251 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2254 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2255 encode_compound_hdr(&xdr
, req
, &hdr
);
2256 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2257 encode_putfh(&xdr
, args
->fh
, &hdr
);
2258 encode_commit(&xdr
, args
, &hdr
);
2259 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
2267 static int nfs4_xdr_enc_fsinfo(struct rpc_rqst
*req
, __be32
*p
, struct nfs4_fsinfo_arg
*args
)
2269 struct xdr_stream xdr
;
2270 struct compound_hdr hdr
= {
2271 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2274 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2275 encode_compound_hdr(&xdr
, req
, &hdr
);
2276 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2277 encode_putfh(&xdr
, args
->fh
, &hdr
);
2278 encode_fsinfo(&xdr
, args
->bitmask
, &hdr
);
2284 * a PATHCONF request
2286 static int nfs4_xdr_enc_pathconf(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_pathconf_arg
*args
)
2288 struct xdr_stream xdr
;
2289 struct compound_hdr hdr
= {
2290 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2293 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2294 encode_compound_hdr(&xdr
, req
, &hdr
);
2295 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2296 encode_putfh(&xdr
, args
->fh
, &hdr
);
2297 encode_getattr_one(&xdr
, args
->bitmask
[0] & nfs4_pathconf_bitmap
[0],
2306 static int nfs4_xdr_enc_statfs(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_statfs_arg
*args
)
2308 struct xdr_stream xdr
;
2309 struct compound_hdr hdr
= {
2310 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2313 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2314 encode_compound_hdr(&xdr
, req
, &hdr
);
2315 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2316 encode_putfh(&xdr
, args
->fh
, &hdr
);
2317 encode_getattr_two(&xdr
, args
->bitmask
[0] & nfs4_statfs_bitmap
[0],
2318 args
->bitmask
[1] & nfs4_statfs_bitmap
[1], &hdr
);
2324 * GETATTR_BITMAP request
2326 static int nfs4_xdr_enc_server_caps(struct rpc_rqst
*req
, __be32
*p
,
2327 struct nfs4_server_caps_arg
*args
)
2329 struct xdr_stream xdr
;
2330 struct compound_hdr hdr
= {
2331 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2334 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2335 encode_compound_hdr(&xdr
, req
, &hdr
);
2336 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2337 encode_putfh(&xdr
, args
->fhandle
, &hdr
);
2338 encode_getattr_one(&xdr
, FATTR4_WORD0_SUPPORTED_ATTRS
|
2339 FATTR4_WORD0_LINK_SUPPORT
|
2340 FATTR4_WORD0_SYMLINK_SUPPORT
|
2341 FATTR4_WORD0_ACLSUPPORT
, &hdr
);
2349 static int nfs4_xdr_enc_renew(struct rpc_rqst
*req
, __be32
*p
, struct nfs_client
*clp
)
2351 struct xdr_stream xdr
;
2352 struct compound_hdr hdr
= {
2356 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2357 encode_compound_hdr(&xdr
, req
, &hdr
);
2358 encode_renew(&xdr
, clp
, &hdr
);
2364 * a SETCLIENTID request
2366 static int nfs4_xdr_enc_setclientid(struct rpc_rqst
*req
, __be32
*p
, struct nfs4_setclientid
*sc
)
2368 struct xdr_stream xdr
;
2369 struct compound_hdr hdr
= {
2373 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2374 encode_compound_hdr(&xdr
, req
, &hdr
);
2375 encode_setclientid(&xdr
, sc
, &hdr
);
2381 * a SETCLIENTID_CONFIRM request
2383 static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst
*req
, __be32
*p
, struct nfs4_setclientid_res
*arg
)
2385 struct xdr_stream xdr
;
2386 struct compound_hdr hdr
= {
2389 const u32 lease_bitmap
[2] = { FATTR4_WORD0_LEASE_TIME
, 0 };
2391 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2392 encode_compound_hdr(&xdr
, req
, &hdr
);
2393 encode_setclientid_confirm(&xdr
, arg
, &hdr
);
2394 encode_putrootfh(&xdr
, &hdr
);
2395 encode_fsinfo(&xdr
, lease_bitmap
, &hdr
);
2401 * DELEGRETURN request
2403 static int nfs4_xdr_enc_delegreturn(struct rpc_rqst
*req
, __be32
*p
, const struct nfs4_delegreturnargs
*args
)
2405 struct xdr_stream xdr
;
2406 struct compound_hdr hdr
= {
2407 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2410 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2411 encode_compound_hdr(&xdr
, req
, &hdr
);
2412 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2413 encode_putfh(&xdr
, args
->fhandle
, &hdr
);
2414 encode_delegreturn(&xdr
, args
->stateid
, &hdr
);
2415 encode_getfattr(&xdr
, args
->bitmask
, &hdr
);
2421 * Encode FS_LOCATIONS request
2423 static int nfs4_xdr_enc_fs_locations(struct rpc_rqst
*req
, __be32
*p
, struct nfs4_fs_locations_arg
*args
)
2425 struct xdr_stream xdr
;
2426 struct compound_hdr hdr
= {
2427 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2431 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2432 encode_compound_hdr(&xdr
, req
, &hdr
);
2433 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2434 encode_putfh(&xdr
, args
->dir_fh
, &hdr
);
2435 encode_lookup(&xdr
, args
->name
, &hdr
);
2436 replen
= hdr
.replen
; /* get the attribute into args->page */
2437 encode_fs_locations(&xdr
, args
->bitmask
, &hdr
);
2439 xdr_inline_pages(&req
->rq_rcv_buf
, replen
<< 2, &args
->page
,
2445 #if defined(CONFIG_NFS_V4_1)
2447 * EXCHANGE_ID request
2449 static int nfs4_xdr_enc_exchange_id(struct rpc_rqst
*req
, uint32_t *p
,
2450 struct nfs41_exchange_id_args
*args
)
2452 struct xdr_stream xdr
;
2453 struct compound_hdr hdr
= {
2454 .minorversion
= args
->client
->cl_mvops
->minor_version
,
2457 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2458 encode_compound_hdr(&xdr
, req
, &hdr
);
2459 encode_exchange_id(&xdr
, args
, &hdr
);
2465 * a CREATE_SESSION request
2467 static int nfs4_xdr_enc_create_session(struct rpc_rqst
*req
, uint32_t *p
,
2468 struct nfs41_create_session_args
*args
)
2470 struct xdr_stream xdr
;
2471 struct compound_hdr hdr
= {
2472 .minorversion
= args
->client
->cl_mvops
->minor_version
,
2475 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2476 encode_compound_hdr(&xdr
, req
, &hdr
);
2477 encode_create_session(&xdr
, args
, &hdr
);
2483 * a DESTROY_SESSION request
2485 static int nfs4_xdr_enc_destroy_session(struct rpc_rqst
*req
, uint32_t *p
,
2486 struct nfs4_session
*session
)
2488 struct xdr_stream xdr
;
2489 struct compound_hdr hdr
= {
2490 .minorversion
= session
->clp
->cl_mvops
->minor_version
,
2493 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2494 encode_compound_hdr(&xdr
, req
, &hdr
);
2495 encode_destroy_session(&xdr
, session
, &hdr
);
2501 * a SEQUENCE request
2503 static int nfs4_xdr_enc_sequence(struct rpc_rqst
*req
, uint32_t *p
,
2504 struct nfs4_sequence_args
*args
)
2506 struct xdr_stream xdr
;
2507 struct compound_hdr hdr
= {
2508 .minorversion
= nfs4_xdr_minorversion(args
),
2511 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2512 encode_compound_hdr(&xdr
, req
, &hdr
);
2513 encode_sequence(&xdr
, args
, &hdr
);
2519 * a GET_LEASE_TIME request
2521 static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst
*req
, uint32_t *p
,
2522 struct nfs4_get_lease_time_args
*args
)
2524 struct xdr_stream xdr
;
2525 struct compound_hdr hdr
= {
2526 .minorversion
= nfs4_xdr_minorversion(&args
->la_seq_args
),
2528 const u32 lease_bitmap
[2] = { FATTR4_WORD0_LEASE_TIME
, 0 };
2530 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2531 encode_compound_hdr(&xdr
, req
, &hdr
);
2532 encode_sequence(&xdr
, &args
->la_seq_args
, &hdr
);
2533 encode_putrootfh(&xdr
, &hdr
);
2534 encode_fsinfo(&xdr
, lease_bitmap
, &hdr
);
2540 * a RECLAIM_COMPLETE request
2542 static int nfs4_xdr_enc_reclaim_complete(struct rpc_rqst
*req
, uint32_t *p
,
2543 struct nfs41_reclaim_complete_args
*args
)
2545 struct xdr_stream xdr
;
2546 struct compound_hdr hdr
= {
2547 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
)
2550 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
2551 encode_compound_hdr(&xdr
, req
, &hdr
);
2552 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
2553 encode_reclaim_complete(&xdr
, args
, &hdr
);
2558 #endif /* CONFIG_NFS_V4_1 */
2560 static void print_overflow_msg(const char *func
, const struct xdr_stream
*xdr
)
2562 dprintk("nfs: %s: prematurely hit end of receive buffer. "
2563 "Remaining buffer length is %tu words.\n",
2564 func
, xdr
->end
- xdr
->p
);
2567 static int decode_opaque_inline(struct xdr_stream
*xdr
, unsigned int *len
, char **string
)
2571 p
= xdr_inline_decode(xdr
, 4);
2574 *len
= be32_to_cpup(p
);
2575 p
= xdr_inline_decode(xdr
, *len
);
2578 *string
= (char *)p
;
2581 print_overflow_msg(__func__
, xdr
);
2585 static int decode_compound_hdr(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
2589 p
= xdr_inline_decode(xdr
, 8);
2592 hdr
->status
= be32_to_cpup(p
++);
2593 hdr
->taglen
= be32_to_cpup(p
);
2595 p
= xdr_inline_decode(xdr
, hdr
->taglen
+ 4);
2598 hdr
->tag
= (char *)p
;
2599 p
+= XDR_QUADLEN(hdr
->taglen
);
2600 hdr
->nops
= be32_to_cpup(p
);
2601 if (unlikely(hdr
->nops
< 1))
2602 return nfs4_stat_to_errno(hdr
->status
);
2605 print_overflow_msg(__func__
, xdr
);
2609 static int decode_op_hdr(struct xdr_stream
*xdr
, enum nfs_opnum4 expected
)
2615 p
= xdr_inline_decode(xdr
, 8);
2618 opnum
= be32_to_cpup(p
++);
2619 if (opnum
!= expected
) {
2620 dprintk("nfs: Server returned operation"
2621 " %d but we issued a request for %d\n",
2625 nfserr
= be32_to_cpup(p
);
2626 if (nfserr
!= NFS_OK
)
2627 return nfs4_stat_to_errno(nfserr
);
2630 print_overflow_msg(__func__
, xdr
);
2635 static int decode_ace(struct xdr_stream
*xdr
, void *ace
, struct nfs_client
*clp
)
2638 unsigned int strlen
;
2641 p
= xdr_inline_decode(xdr
, 12);
2643 return decode_opaque_inline(xdr
, &strlen
, &str
);
2644 print_overflow_msg(__func__
, xdr
);
2648 static int decode_attr_bitmap(struct xdr_stream
*xdr
, uint32_t *bitmap
)
2653 p
= xdr_inline_decode(xdr
, 4);
2656 bmlen
= be32_to_cpup(p
);
2658 bitmap
[0] = bitmap
[1] = 0;
2659 p
= xdr_inline_decode(xdr
, (bmlen
<< 2));
2663 bitmap
[0] = be32_to_cpup(p
++);
2665 bitmap
[1] = be32_to_cpup(p
);
2669 print_overflow_msg(__func__
, xdr
);
2673 static inline int decode_attr_length(struct xdr_stream
*xdr
, uint32_t *attrlen
, __be32
**savep
)
2677 p
= xdr_inline_decode(xdr
, 4);
2680 *attrlen
= be32_to_cpup(p
);
2684 print_overflow_msg(__func__
, xdr
);
2688 static int decode_attr_supported(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *bitmask
)
2690 if (likely(bitmap
[0] & FATTR4_WORD0_SUPPORTED_ATTRS
)) {
2691 decode_attr_bitmap(xdr
, bitmask
);
2692 bitmap
[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS
;
2694 bitmask
[0] = bitmask
[1] = 0;
2695 dprintk("%s: bitmask=%08x:%08x\n", __func__
, bitmask
[0], bitmask
[1]);
2699 static int decode_attr_type(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *type
)
2705 if (unlikely(bitmap
[0] & (FATTR4_WORD0_TYPE
- 1U)))
2707 if (likely(bitmap
[0] & FATTR4_WORD0_TYPE
)) {
2708 p
= xdr_inline_decode(xdr
, 4);
2711 *type
= be32_to_cpup(p
);
2712 if (*type
< NF4REG
|| *type
> NF4NAMEDATTR
) {
2713 dprintk("%s: bad type %d\n", __func__
, *type
);
2716 bitmap
[0] &= ~FATTR4_WORD0_TYPE
;
2717 ret
= NFS_ATTR_FATTR_TYPE
;
2719 dprintk("%s: type=0%o\n", __func__
, nfs_type2fmt
[*type
]);
2722 print_overflow_msg(__func__
, xdr
);
2726 static int decode_attr_change(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *change
)
2732 if (unlikely(bitmap
[0] & (FATTR4_WORD0_CHANGE
- 1U)))
2734 if (likely(bitmap
[0] & FATTR4_WORD0_CHANGE
)) {
2735 p
= xdr_inline_decode(xdr
, 8);
2738 xdr_decode_hyper(p
, change
);
2739 bitmap
[0] &= ~FATTR4_WORD0_CHANGE
;
2740 ret
= NFS_ATTR_FATTR_CHANGE
;
2742 dprintk("%s: change attribute=%Lu\n", __func__
,
2743 (unsigned long long)*change
);
2746 print_overflow_msg(__func__
, xdr
);
2750 static int decode_attr_size(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *size
)
2756 if (unlikely(bitmap
[0] & (FATTR4_WORD0_SIZE
- 1U)))
2758 if (likely(bitmap
[0] & FATTR4_WORD0_SIZE
)) {
2759 p
= xdr_inline_decode(xdr
, 8);
2762 xdr_decode_hyper(p
, size
);
2763 bitmap
[0] &= ~FATTR4_WORD0_SIZE
;
2764 ret
= NFS_ATTR_FATTR_SIZE
;
2766 dprintk("%s: file size=%Lu\n", __func__
, (unsigned long long)*size
);
2769 print_overflow_msg(__func__
, xdr
);
2773 static int decode_attr_link_support(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
2778 if (unlikely(bitmap
[0] & (FATTR4_WORD0_LINK_SUPPORT
- 1U)))
2780 if (likely(bitmap
[0] & FATTR4_WORD0_LINK_SUPPORT
)) {
2781 p
= xdr_inline_decode(xdr
, 4);
2784 *res
= be32_to_cpup(p
);
2785 bitmap
[0] &= ~FATTR4_WORD0_LINK_SUPPORT
;
2787 dprintk("%s: link support=%s\n", __func__
, *res
== 0 ? "false" : "true");
2790 print_overflow_msg(__func__
, xdr
);
2794 static int decode_attr_symlink_support(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
2799 if (unlikely(bitmap
[0] & (FATTR4_WORD0_SYMLINK_SUPPORT
- 1U)))
2801 if (likely(bitmap
[0] & FATTR4_WORD0_SYMLINK_SUPPORT
)) {
2802 p
= xdr_inline_decode(xdr
, 4);
2805 *res
= be32_to_cpup(p
);
2806 bitmap
[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT
;
2808 dprintk("%s: symlink support=%s\n", __func__
, *res
== 0 ? "false" : "true");
2811 print_overflow_msg(__func__
, xdr
);
2815 static int decode_attr_fsid(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct nfs_fsid
*fsid
)
2822 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FSID
- 1U)))
2824 if (likely(bitmap
[0] & FATTR4_WORD0_FSID
)) {
2825 p
= xdr_inline_decode(xdr
, 16);
2828 p
= xdr_decode_hyper(p
, &fsid
->major
);
2829 xdr_decode_hyper(p
, &fsid
->minor
);
2830 bitmap
[0] &= ~FATTR4_WORD0_FSID
;
2831 ret
= NFS_ATTR_FATTR_FSID
;
2833 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__
,
2834 (unsigned long long)fsid
->major
,
2835 (unsigned long long)fsid
->minor
);
2838 print_overflow_msg(__func__
, xdr
);
2842 static int decode_attr_lease_time(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
2847 if (unlikely(bitmap
[0] & (FATTR4_WORD0_LEASE_TIME
- 1U)))
2849 if (likely(bitmap
[0] & FATTR4_WORD0_LEASE_TIME
)) {
2850 p
= xdr_inline_decode(xdr
, 4);
2853 *res
= be32_to_cpup(p
);
2854 bitmap
[0] &= ~FATTR4_WORD0_LEASE_TIME
;
2856 dprintk("%s: file size=%u\n", __func__
, (unsigned int)*res
);
2859 print_overflow_msg(__func__
, xdr
);
2863 static int decode_attr_error(struct xdr_stream
*xdr
, uint32_t *bitmap
)
2867 if (unlikely(bitmap
[0] & (FATTR4_WORD0_RDATTR_ERROR
- 1U)))
2869 if (likely(bitmap
[0] & FATTR4_WORD0_RDATTR_ERROR
)) {
2870 p
= xdr_inline_decode(xdr
, 4);
2873 bitmap
[0] &= ~FATTR4_WORD0_RDATTR_ERROR
;
2877 print_overflow_msg(__func__
, xdr
);
2881 static int decode_attr_filehandle(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct nfs_fh
*fh
)
2887 memset(fh
, 0, sizeof(*fh
));
2889 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILEHANDLE
- 1U)))
2891 if (likely(bitmap
[0] & FATTR4_WORD0_FILEHANDLE
)) {
2892 p
= xdr_inline_decode(xdr
, 4);
2895 len
= be32_to_cpup(p
);
2896 if (len
> NFS4_FHSIZE
)
2898 p
= xdr_inline_decode(xdr
, len
);
2902 memcpy(fh
->data
, p
, len
);
2905 bitmap
[0] &= ~FATTR4_WORD0_FILEHANDLE
;
2909 print_overflow_msg(__func__
, xdr
);
2913 static int decode_attr_aclsupport(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
2917 *res
= ACL4_SUPPORT_ALLOW_ACL
|ACL4_SUPPORT_DENY_ACL
;
2918 if (unlikely(bitmap
[0] & (FATTR4_WORD0_ACLSUPPORT
- 1U)))
2920 if (likely(bitmap
[0] & FATTR4_WORD0_ACLSUPPORT
)) {
2921 p
= xdr_inline_decode(xdr
, 4);
2924 *res
= be32_to_cpup(p
);
2925 bitmap
[0] &= ~FATTR4_WORD0_ACLSUPPORT
;
2927 dprintk("%s: ACLs supported=%u\n", __func__
, (unsigned int)*res
);
2930 print_overflow_msg(__func__
, xdr
);
2934 static int decode_attr_fileid(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *fileid
)
2940 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILEID
- 1U)))
2942 if (likely(bitmap
[0] & FATTR4_WORD0_FILEID
)) {
2943 p
= xdr_inline_decode(xdr
, 8);
2946 xdr_decode_hyper(p
, fileid
);
2947 bitmap
[0] &= ~FATTR4_WORD0_FILEID
;
2948 ret
= NFS_ATTR_FATTR_FILEID
;
2950 dprintk("%s: fileid=%Lu\n", __func__
, (unsigned long long)*fileid
);
2953 print_overflow_msg(__func__
, xdr
);
2957 static int decode_attr_mounted_on_fileid(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *fileid
)
2963 if (unlikely(bitmap
[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID
- 1U)))
2965 if (likely(bitmap
[1] & FATTR4_WORD1_MOUNTED_ON_FILEID
)) {
2966 p
= xdr_inline_decode(xdr
, 8);
2969 xdr_decode_hyper(p
, fileid
);
2970 bitmap
[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID
;
2971 ret
= NFS_ATTR_FATTR_FILEID
;
2973 dprintk("%s: fileid=%Lu\n", __func__
, (unsigned long long)*fileid
);
2976 print_overflow_msg(__func__
, xdr
);
2980 static int decode_attr_files_avail(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
2986 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_AVAIL
- 1U)))
2988 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_AVAIL
)) {
2989 p
= xdr_inline_decode(xdr
, 8);
2992 xdr_decode_hyper(p
, res
);
2993 bitmap
[0] &= ~FATTR4_WORD0_FILES_AVAIL
;
2995 dprintk("%s: files avail=%Lu\n", __func__
, (unsigned long long)*res
);
2998 print_overflow_msg(__func__
, xdr
);
3002 static int decode_attr_files_free(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3008 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_FREE
- 1U)))
3010 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_FREE
)) {
3011 p
= xdr_inline_decode(xdr
, 8);
3014 xdr_decode_hyper(p
, res
);
3015 bitmap
[0] &= ~FATTR4_WORD0_FILES_FREE
;
3017 dprintk("%s: files free=%Lu\n", __func__
, (unsigned long long)*res
);
3020 print_overflow_msg(__func__
, xdr
);
3024 static int decode_attr_files_total(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3030 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_TOTAL
- 1U)))
3032 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_TOTAL
)) {
3033 p
= xdr_inline_decode(xdr
, 8);
3036 xdr_decode_hyper(p
, res
);
3037 bitmap
[0] &= ~FATTR4_WORD0_FILES_TOTAL
;
3039 dprintk("%s: files total=%Lu\n", __func__
, (unsigned long long)*res
);
3042 print_overflow_msg(__func__
, xdr
);
3046 static int decode_pathname(struct xdr_stream
*xdr
, struct nfs4_pathname
*path
)
3052 p
= xdr_inline_decode(xdr
, 4);
3055 n
= be32_to_cpup(p
);
3059 path
->ncomponents
= 0;
3060 while (path
->ncomponents
< n
) {
3061 struct nfs4_string
*component
= &path
->components
[path
->ncomponents
];
3062 status
= decode_opaque_inline(xdr
, &component
->len
, &component
->data
);
3063 if (unlikely(status
!= 0))
3065 if (path
->ncomponents
!= n
)
3067 dprintk("%s", component
->data
);
3068 if (path
->ncomponents
< NFS4_PATHNAME_MAXCOMPONENTS
)
3069 path
->ncomponents
++;
3071 dprintk("cannot parse %d components in path\n", n
);
3079 /* a root pathname is sent as a zero component4 */
3080 path
->ncomponents
= 1;
3081 path
->components
[0].len
=0;
3082 path
->components
[0].data
=NULL
;
3083 dprintk("path /\n");
3086 dprintk(" status %d", status
);
3090 print_overflow_msg(__func__
, xdr
);
3094 static int decode_attr_fs_locations(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct nfs4_fs_locations
*res
)
3100 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FS_LOCATIONS
-1U)))
3103 if (unlikely(!(bitmap
[0] & FATTR4_WORD0_FS_LOCATIONS
)))
3105 dprintk("%s: fsroot ", __func__
);
3106 status
= decode_pathname(xdr
, &res
->fs_path
);
3107 if (unlikely(status
!= 0))
3109 p
= xdr_inline_decode(xdr
, 4);
3112 n
= be32_to_cpup(p
);
3115 res
->nlocations
= 0;
3116 while (res
->nlocations
< n
) {
3118 struct nfs4_fs_location
*loc
= &res
->locations
[res
->nlocations
];
3120 p
= xdr_inline_decode(xdr
, 4);
3123 m
= be32_to_cpup(p
);
3126 dprintk("%s: servers ", __func__
);
3127 while (loc
->nservers
< m
) {
3128 struct nfs4_string
*server
= &loc
->servers
[loc
->nservers
];
3129 status
= decode_opaque_inline(xdr
, &server
->len
, &server
->data
);
3130 if (unlikely(status
!= 0))
3132 dprintk("%s ", server
->data
);
3133 if (loc
->nservers
< NFS4_FS_LOCATION_MAXSERVERS
)
3137 dprintk("%s: using first %u of %u servers "
3138 "returned for location %u\n",
3140 NFS4_FS_LOCATION_MAXSERVERS
,
3141 m
, res
->nlocations
);
3142 for (i
= loc
->nservers
; i
< m
; i
++) {
3145 status
= decode_opaque_inline(xdr
, &len
, &data
);
3146 if (unlikely(status
!= 0))
3151 status
= decode_pathname(xdr
, &loc
->rootpath
);
3152 if (unlikely(status
!= 0))
3154 if (res
->nlocations
< NFS4_FS_LOCATIONS_MAXENTRIES
)
3157 if (res
->nlocations
!= 0)
3158 status
= NFS_ATTR_FATTR_V4_REFERRAL
;
3160 dprintk("%s: fs_locations done, error = %d\n", __func__
, status
);
3163 print_overflow_msg(__func__
, xdr
);
3169 static int decode_attr_maxfilesize(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3175 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXFILESIZE
- 1U)))
3177 if (likely(bitmap
[0] & FATTR4_WORD0_MAXFILESIZE
)) {
3178 p
= xdr_inline_decode(xdr
, 8);
3181 xdr_decode_hyper(p
, res
);
3182 bitmap
[0] &= ~FATTR4_WORD0_MAXFILESIZE
;
3184 dprintk("%s: maxfilesize=%Lu\n", __func__
, (unsigned long long)*res
);
3187 print_overflow_msg(__func__
, xdr
);
3191 static int decode_attr_maxlink(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *maxlink
)
3197 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXLINK
- 1U)))
3199 if (likely(bitmap
[0] & FATTR4_WORD0_MAXLINK
)) {
3200 p
= xdr_inline_decode(xdr
, 4);
3203 *maxlink
= be32_to_cpup(p
);
3204 bitmap
[0] &= ~FATTR4_WORD0_MAXLINK
;
3206 dprintk("%s: maxlink=%u\n", __func__
, *maxlink
);
3209 print_overflow_msg(__func__
, xdr
);
3213 static int decode_attr_maxname(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *maxname
)
3219 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXNAME
- 1U)))
3221 if (likely(bitmap
[0] & FATTR4_WORD0_MAXNAME
)) {
3222 p
= xdr_inline_decode(xdr
, 4);
3225 *maxname
= be32_to_cpup(p
);
3226 bitmap
[0] &= ~FATTR4_WORD0_MAXNAME
;
3228 dprintk("%s: maxname=%u\n", __func__
, *maxname
);
3231 print_overflow_msg(__func__
, xdr
);
3235 static int decode_attr_maxread(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3241 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXREAD
- 1U)))
3243 if (likely(bitmap
[0] & FATTR4_WORD0_MAXREAD
)) {
3245 p
= xdr_inline_decode(xdr
, 8);
3248 xdr_decode_hyper(p
, &maxread
);
3249 if (maxread
> 0x7FFFFFFF)
3250 maxread
= 0x7FFFFFFF;
3251 *res
= (uint32_t)maxread
;
3252 bitmap
[0] &= ~FATTR4_WORD0_MAXREAD
;
3254 dprintk("%s: maxread=%lu\n", __func__
, (unsigned long)*res
);
3257 print_overflow_msg(__func__
, xdr
);
3261 static int decode_attr_maxwrite(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3267 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXWRITE
- 1U)))
3269 if (likely(bitmap
[0] & FATTR4_WORD0_MAXWRITE
)) {
3271 p
= xdr_inline_decode(xdr
, 8);
3274 xdr_decode_hyper(p
, &maxwrite
);
3275 if (maxwrite
> 0x7FFFFFFF)
3276 maxwrite
= 0x7FFFFFFF;
3277 *res
= (uint32_t)maxwrite
;
3278 bitmap
[0] &= ~FATTR4_WORD0_MAXWRITE
;
3280 dprintk("%s: maxwrite=%lu\n", __func__
, (unsigned long)*res
);
3283 print_overflow_msg(__func__
, xdr
);
3287 static int decode_attr_mode(struct xdr_stream
*xdr
, uint32_t *bitmap
, umode_t
*mode
)
3294 if (unlikely(bitmap
[1] & (FATTR4_WORD1_MODE
- 1U)))
3296 if (likely(bitmap
[1] & FATTR4_WORD1_MODE
)) {
3297 p
= xdr_inline_decode(xdr
, 4);
3300 tmp
= be32_to_cpup(p
);
3301 *mode
= tmp
& ~S_IFMT
;
3302 bitmap
[1] &= ~FATTR4_WORD1_MODE
;
3303 ret
= NFS_ATTR_FATTR_MODE
;
3305 dprintk("%s: file mode=0%o\n", __func__
, (unsigned int)*mode
);
3308 print_overflow_msg(__func__
, xdr
);
3312 static int decode_attr_nlink(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *nlink
)
3318 if (unlikely(bitmap
[1] & (FATTR4_WORD1_NUMLINKS
- 1U)))
3320 if (likely(bitmap
[1] & FATTR4_WORD1_NUMLINKS
)) {
3321 p
= xdr_inline_decode(xdr
, 4);
3324 *nlink
= be32_to_cpup(p
);
3325 bitmap
[1] &= ~FATTR4_WORD1_NUMLINKS
;
3326 ret
= NFS_ATTR_FATTR_NLINK
;
3328 dprintk("%s: nlink=%u\n", __func__
, (unsigned int)*nlink
);
3331 print_overflow_msg(__func__
, xdr
);
3335 static int decode_attr_owner(struct xdr_stream
*xdr
, uint32_t *bitmap
,
3336 struct nfs_client
*clp
, uint32_t *uid
, int may_sleep
)
3343 if (unlikely(bitmap
[1] & (FATTR4_WORD1_OWNER
- 1U)))
3345 if (likely(bitmap
[1] & FATTR4_WORD1_OWNER
)) {
3346 p
= xdr_inline_decode(xdr
, 4);
3349 len
= be32_to_cpup(p
);
3350 p
= xdr_inline_decode(xdr
, len
);
3355 } else if (len
< XDR_MAX_NETOBJ
) {
3356 if (nfs_map_name_to_uid(clp
, (char *)p
, len
, uid
) == 0)
3357 ret
= NFS_ATTR_FATTR_OWNER
;
3359 dprintk("%s: nfs_map_name_to_uid failed!\n",
3362 dprintk("%s: name too long (%u)!\n",
3364 bitmap
[1] &= ~FATTR4_WORD1_OWNER
;
3366 dprintk("%s: uid=%d\n", __func__
, (int)*uid
);
3369 print_overflow_msg(__func__
, xdr
);
3373 static int decode_attr_group(struct xdr_stream
*xdr
, uint32_t *bitmap
,
3374 struct nfs_client
*clp
, uint32_t *gid
, int may_sleep
)
3381 if (unlikely(bitmap
[1] & (FATTR4_WORD1_OWNER_GROUP
- 1U)))
3383 if (likely(bitmap
[1] & FATTR4_WORD1_OWNER_GROUP
)) {
3384 p
= xdr_inline_decode(xdr
, 4);
3387 len
= be32_to_cpup(p
);
3388 p
= xdr_inline_decode(xdr
, len
);
3393 } else if (len
< XDR_MAX_NETOBJ
) {
3394 if (nfs_map_group_to_gid(clp
, (char *)p
, len
, gid
) == 0)
3395 ret
= NFS_ATTR_FATTR_GROUP
;
3397 dprintk("%s: nfs_map_group_to_gid failed!\n",
3400 dprintk("%s: name too long (%u)!\n",
3402 bitmap
[1] &= ~FATTR4_WORD1_OWNER_GROUP
;
3404 dprintk("%s: gid=%d\n", __func__
, (int)*gid
);
3407 print_overflow_msg(__func__
, xdr
);
3411 static int decode_attr_rdev(struct xdr_stream
*xdr
, uint32_t *bitmap
, dev_t
*rdev
)
3413 uint32_t major
= 0, minor
= 0;
3418 if (unlikely(bitmap
[1] & (FATTR4_WORD1_RAWDEV
- 1U)))
3420 if (likely(bitmap
[1] & FATTR4_WORD1_RAWDEV
)) {
3423 p
= xdr_inline_decode(xdr
, 8);
3426 major
= be32_to_cpup(p
++);
3427 minor
= be32_to_cpup(p
);
3428 tmp
= MKDEV(major
, minor
);
3429 if (MAJOR(tmp
) == major
&& MINOR(tmp
) == minor
)
3431 bitmap
[1] &= ~ FATTR4_WORD1_RAWDEV
;
3432 ret
= NFS_ATTR_FATTR_RDEV
;
3434 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__
, major
, minor
);
3437 print_overflow_msg(__func__
, xdr
);
3441 static int decode_attr_space_avail(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3447 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_AVAIL
- 1U)))
3449 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_AVAIL
)) {
3450 p
= xdr_inline_decode(xdr
, 8);
3453 xdr_decode_hyper(p
, res
);
3454 bitmap
[1] &= ~FATTR4_WORD1_SPACE_AVAIL
;
3456 dprintk("%s: space avail=%Lu\n", __func__
, (unsigned long long)*res
);
3459 print_overflow_msg(__func__
, xdr
);
3463 static int decode_attr_space_free(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3469 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_FREE
- 1U)))
3471 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_FREE
)) {
3472 p
= xdr_inline_decode(xdr
, 8);
3475 xdr_decode_hyper(p
, res
);
3476 bitmap
[1] &= ~FATTR4_WORD1_SPACE_FREE
;
3478 dprintk("%s: space free=%Lu\n", __func__
, (unsigned long long)*res
);
3481 print_overflow_msg(__func__
, xdr
);
3485 static int decode_attr_space_total(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3491 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_TOTAL
- 1U)))
3493 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_TOTAL
)) {
3494 p
= xdr_inline_decode(xdr
, 8);
3497 xdr_decode_hyper(p
, res
);
3498 bitmap
[1] &= ~FATTR4_WORD1_SPACE_TOTAL
;
3500 dprintk("%s: space total=%Lu\n", __func__
, (unsigned long long)*res
);
3503 print_overflow_msg(__func__
, xdr
);
3507 static int decode_attr_space_used(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *used
)
3513 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_USED
- 1U)))
3515 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_USED
)) {
3516 p
= xdr_inline_decode(xdr
, 8);
3519 xdr_decode_hyper(p
, used
);
3520 bitmap
[1] &= ~FATTR4_WORD1_SPACE_USED
;
3521 ret
= NFS_ATTR_FATTR_SPACE_USED
;
3523 dprintk("%s: space used=%Lu\n", __func__
,
3524 (unsigned long long)*used
);
3527 print_overflow_msg(__func__
, xdr
);
3531 static int decode_attr_time(struct xdr_stream
*xdr
, struct timespec
*time
)
3537 p
= xdr_inline_decode(xdr
, 12);
3540 p
= xdr_decode_hyper(p
, &sec
);
3541 nsec
= be32_to_cpup(p
);
3542 time
->tv_sec
= (time_t)sec
;
3543 time
->tv_nsec
= (long)nsec
;
3546 print_overflow_msg(__func__
, xdr
);
3550 static int decode_attr_time_access(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec
*time
)
3556 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_ACCESS
- 1U)))
3558 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_ACCESS
)) {
3559 status
= decode_attr_time(xdr
, time
);
3561 status
= NFS_ATTR_FATTR_ATIME
;
3562 bitmap
[1] &= ~FATTR4_WORD1_TIME_ACCESS
;
3564 dprintk("%s: atime=%ld\n", __func__
, (long)time
->tv_sec
);
3568 static int decode_attr_time_metadata(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec
*time
)
3574 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_METADATA
- 1U)))
3576 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_METADATA
)) {
3577 status
= decode_attr_time(xdr
, time
);
3579 status
= NFS_ATTR_FATTR_CTIME
;
3580 bitmap
[1] &= ~FATTR4_WORD1_TIME_METADATA
;
3582 dprintk("%s: ctime=%ld\n", __func__
, (long)time
->tv_sec
);
3586 static int decode_attr_time_modify(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec
*time
)
3592 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_MODIFY
- 1U)))
3594 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_MODIFY
)) {
3595 status
= decode_attr_time(xdr
, time
);
3597 status
= NFS_ATTR_FATTR_MTIME
;
3598 bitmap
[1] &= ~FATTR4_WORD1_TIME_MODIFY
;
3600 dprintk("%s: mtime=%ld\n", __func__
, (long)time
->tv_sec
);
3604 static int verify_attr_len(struct xdr_stream
*xdr
, __be32
*savep
, uint32_t attrlen
)
3606 unsigned int attrwords
= XDR_QUADLEN(attrlen
);
3607 unsigned int nwords
= xdr
->p
- savep
;
3609 if (unlikely(attrwords
!= nwords
)) {
3610 dprintk("%s: server returned incorrect attribute length: "
3614 (attrwords
< nwords
) ? '<' : '>',
3621 static int decode_change_info(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
3625 p
= xdr_inline_decode(xdr
, 20);
3628 cinfo
->atomic
= be32_to_cpup(p
++);
3629 p
= xdr_decode_hyper(p
, &cinfo
->before
);
3630 xdr_decode_hyper(p
, &cinfo
->after
);
3633 print_overflow_msg(__func__
, xdr
);
3637 static int decode_access(struct xdr_stream
*xdr
, struct nfs4_accessres
*access
)
3643 status
= decode_op_hdr(xdr
, OP_ACCESS
);
3646 p
= xdr_inline_decode(xdr
, 8);
3649 supp
= be32_to_cpup(p
++);
3650 acc
= be32_to_cpup(p
);
3651 access
->supported
= supp
;
3652 access
->access
= acc
;
3655 print_overflow_msg(__func__
, xdr
);
3659 static int decode_opaque_fixed(struct xdr_stream
*xdr
, void *buf
, size_t len
)
3663 p
= xdr_inline_decode(xdr
, len
);
3665 memcpy(buf
, p
, len
);
3668 print_overflow_msg(__func__
, xdr
);
3672 static int decode_stateid(struct xdr_stream
*xdr
, nfs4_stateid
*stateid
)
3674 return decode_opaque_fixed(xdr
, stateid
->data
, NFS4_STATEID_SIZE
);
3677 static int decode_close(struct xdr_stream
*xdr
, struct nfs_closeres
*res
)
3681 status
= decode_op_hdr(xdr
, OP_CLOSE
);
3683 nfs_increment_open_seqid(status
, res
->seqid
);
3685 status
= decode_stateid(xdr
, &res
->stateid
);
3689 static int decode_verifier(struct xdr_stream
*xdr
, void *verifier
)
3691 return decode_opaque_fixed(xdr
, verifier
, 8);
3694 static int decode_commit(struct xdr_stream
*xdr
, struct nfs_writeres
*res
)
3698 status
= decode_op_hdr(xdr
, OP_COMMIT
);
3700 status
= decode_verifier(xdr
, res
->verf
->verifier
);
3704 static int decode_create(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
3710 status
= decode_op_hdr(xdr
, OP_CREATE
);
3713 if ((status
= decode_change_info(xdr
, cinfo
)))
3715 p
= xdr_inline_decode(xdr
, 4);
3718 bmlen
= be32_to_cpup(p
);
3719 p
= xdr_inline_decode(xdr
, bmlen
<< 2);
3723 print_overflow_msg(__func__
, xdr
);
3727 static int decode_server_caps(struct xdr_stream
*xdr
, struct nfs4_server_caps_res
*res
)
3730 uint32_t attrlen
, bitmap
[2] = {0};
3733 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
3735 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
3737 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
3739 if ((status
= decode_attr_supported(xdr
, bitmap
, res
->attr_bitmask
)) != 0)
3741 if ((status
= decode_attr_link_support(xdr
, bitmap
, &res
->has_links
)) != 0)
3743 if ((status
= decode_attr_symlink_support(xdr
, bitmap
, &res
->has_symlinks
)) != 0)
3745 if ((status
= decode_attr_aclsupport(xdr
, bitmap
, &res
->acl_bitmask
)) != 0)
3747 status
= verify_attr_len(xdr
, savep
, attrlen
);
3749 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
3753 static int decode_statfs(struct xdr_stream
*xdr
, struct nfs_fsstat
*fsstat
)
3756 uint32_t attrlen
, bitmap
[2] = {0};
3759 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
3761 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
3763 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
3766 if ((status
= decode_attr_files_avail(xdr
, bitmap
, &fsstat
->afiles
)) != 0)
3768 if ((status
= decode_attr_files_free(xdr
, bitmap
, &fsstat
->ffiles
)) != 0)
3770 if ((status
= decode_attr_files_total(xdr
, bitmap
, &fsstat
->tfiles
)) != 0)
3772 if ((status
= decode_attr_space_avail(xdr
, bitmap
, &fsstat
->abytes
)) != 0)
3774 if ((status
= decode_attr_space_free(xdr
, bitmap
, &fsstat
->fbytes
)) != 0)
3776 if ((status
= decode_attr_space_total(xdr
, bitmap
, &fsstat
->tbytes
)) != 0)
3779 status
= verify_attr_len(xdr
, savep
, attrlen
);
3781 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
3785 static int decode_pathconf(struct xdr_stream
*xdr
, struct nfs_pathconf
*pathconf
)
3788 uint32_t attrlen
, bitmap
[2] = {0};
3791 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
3793 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
3795 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
3798 if ((status
= decode_attr_maxlink(xdr
, bitmap
, &pathconf
->max_link
)) != 0)
3800 if ((status
= decode_attr_maxname(xdr
, bitmap
, &pathconf
->max_namelen
)) != 0)
3803 status
= verify_attr_len(xdr
, savep
, attrlen
);
3805 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
3809 static int decode_getfattr_attrs(struct xdr_stream
*xdr
, uint32_t *bitmap
,
3810 struct nfs_fattr
*fattr
, struct nfs_fh
*fh
,
3811 const struct nfs_server
*server
, int may_sleep
)
3818 status
= decode_attr_type(xdr
, bitmap
, &type
);
3823 fattr
->mode
|= nfs_type2fmt
[type
];
3824 fattr
->valid
|= status
;
3827 status
= decode_attr_change(xdr
, bitmap
, &fattr
->change_attr
);
3830 fattr
->valid
|= status
;
3832 status
= decode_attr_size(xdr
, bitmap
, &fattr
->size
);
3835 fattr
->valid
|= status
;
3837 status
= decode_attr_fsid(xdr
, bitmap
, &fattr
->fsid
);
3840 fattr
->valid
|= status
;
3842 status
= decode_attr_error(xdr
, bitmap
);
3846 status
= decode_attr_filehandle(xdr
, bitmap
, fh
);
3850 status
= decode_attr_fileid(xdr
, bitmap
, &fattr
->fileid
);
3853 fattr
->valid
|= status
;
3855 status
= decode_attr_fs_locations(xdr
, bitmap
, container_of(fattr
,
3856 struct nfs4_fs_locations
,
3860 fattr
->valid
|= status
;
3862 status
= decode_attr_mode(xdr
, bitmap
, &fmode
);
3866 fattr
->mode
|= fmode
;
3867 fattr
->valid
|= status
;
3870 status
= decode_attr_nlink(xdr
, bitmap
, &fattr
->nlink
);
3873 fattr
->valid
|= status
;
3875 status
= decode_attr_owner(xdr
, bitmap
, server
->nfs_client
,
3876 &fattr
->uid
, may_sleep
);
3879 fattr
->valid
|= status
;
3881 status
= decode_attr_group(xdr
, bitmap
, server
->nfs_client
,
3882 &fattr
->gid
, may_sleep
);
3885 fattr
->valid
|= status
;
3887 status
= decode_attr_rdev(xdr
, bitmap
, &fattr
->rdev
);
3890 fattr
->valid
|= status
;
3892 status
= decode_attr_space_used(xdr
, bitmap
, &fattr
->du
.nfs3
.used
);
3895 fattr
->valid
|= status
;
3897 status
= decode_attr_time_access(xdr
, bitmap
, &fattr
->atime
);
3900 fattr
->valid
|= status
;
3902 status
= decode_attr_time_metadata(xdr
, bitmap
, &fattr
->ctime
);
3905 fattr
->valid
|= status
;
3907 status
= decode_attr_time_modify(xdr
, bitmap
, &fattr
->mtime
);
3910 fattr
->valid
|= status
;
3912 status
= decode_attr_mounted_on_fileid(xdr
, bitmap
, &fileid
);
3915 if (status
!= 0 && !(fattr
->valid
& status
)) {
3916 fattr
->fileid
= fileid
;
3917 fattr
->valid
|= status
;
3921 dprintk("%s: xdr returned %d\n", __func__
, -status
);
3925 static int decode_getfattr_generic(struct xdr_stream
*xdr
, struct nfs_fattr
*fattr
,
3926 struct nfs_fh
*fh
, const struct nfs_server
*server
, int may_sleep
)
3933 status
= decode_op_hdr(xdr
, OP_GETATTR
);
3937 status
= decode_attr_bitmap(xdr
, bitmap
);
3941 status
= decode_attr_length(xdr
, &attrlen
, &savep
);
3945 status
= decode_getfattr_attrs(xdr
, bitmap
, fattr
, fh
, server
, may_sleep
);
3949 status
= verify_attr_len(xdr
, savep
, attrlen
);
3951 dprintk("%s: xdr returned %d\n", __func__
, -status
);
3955 static int decode_getfattr(struct xdr_stream
*xdr
, struct nfs_fattr
*fattr
,
3956 const struct nfs_server
*server
, int may_sleep
)
3958 return decode_getfattr_generic(xdr
, fattr
, NULL
, server
, may_sleep
);
3961 static int decode_fsinfo(struct xdr_stream
*xdr
, struct nfs_fsinfo
*fsinfo
)
3964 uint32_t attrlen
, bitmap
[2];
3967 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
3969 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
3971 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
3974 fsinfo
->rtmult
= fsinfo
->wtmult
= 512; /* ??? */
3976 if ((status
= decode_attr_lease_time(xdr
, bitmap
, &fsinfo
->lease_time
)) != 0)
3978 if ((status
= decode_attr_maxfilesize(xdr
, bitmap
, &fsinfo
->maxfilesize
)) != 0)
3980 if ((status
= decode_attr_maxread(xdr
, bitmap
, &fsinfo
->rtmax
)) != 0)
3982 fsinfo
->rtpref
= fsinfo
->dtpref
= fsinfo
->rtmax
;
3983 if ((status
= decode_attr_maxwrite(xdr
, bitmap
, &fsinfo
->wtmax
)) != 0)
3985 fsinfo
->wtpref
= fsinfo
->wtmax
;
3987 status
= verify_attr_len(xdr
, savep
, attrlen
);
3989 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
3993 static int decode_getfh(struct xdr_stream
*xdr
, struct nfs_fh
*fh
)
3999 /* Zero handle first to allow comparisons */
4000 memset(fh
, 0, sizeof(*fh
));
4002 status
= decode_op_hdr(xdr
, OP_GETFH
);
4006 p
= xdr_inline_decode(xdr
, 4);
4009 len
= be32_to_cpup(p
);
4010 if (len
> NFS4_FHSIZE
)
4013 p
= xdr_inline_decode(xdr
, len
);
4016 memcpy(fh
->data
, p
, len
);
4019 print_overflow_msg(__func__
, xdr
);
4023 static int decode_link(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
4027 status
= decode_op_hdr(xdr
, OP_LINK
);
4030 return decode_change_info(xdr
, cinfo
);
4034 * We create the owner, so we know a proper owner.id length is 4.
4036 static int decode_lock_denied (struct xdr_stream
*xdr
, struct file_lock
*fl
)
4038 uint64_t offset
, length
, clientid
;
4040 uint32_t namelen
, type
;
4042 p
= xdr_inline_decode(xdr
, 32); /* read 32 bytes */
4045 p
= xdr_decode_hyper(p
, &offset
); /* read 2 8-byte long words */
4046 p
= xdr_decode_hyper(p
, &length
);
4047 type
= be32_to_cpup(p
++); /* 4 byte read */
4048 if (fl
!= NULL
) { /* manipulate file lock */
4049 fl
->fl_start
= (loff_t
)offset
;
4050 fl
->fl_end
= fl
->fl_start
+ (loff_t
)length
- 1;
4051 if (length
== ~(uint64_t)0)
4052 fl
->fl_end
= OFFSET_MAX
;
4053 fl
->fl_type
= F_WRLCK
;
4055 fl
->fl_type
= F_RDLCK
;
4058 p
= xdr_decode_hyper(p
, &clientid
); /* read 8 bytes */
4059 namelen
= be32_to_cpup(p
); /* read 4 bytes */ /* have read all 32 bytes now */
4060 p
= xdr_inline_decode(xdr
, namelen
); /* variable size field */
4062 return -NFS4ERR_DENIED
;
4064 print_overflow_msg(__func__
, xdr
);
4068 static int decode_lock(struct xdr_stream
*xdr
, struct nfs_lock_res
*res
)
4072 status
= decode_op_hdr(xdr
, OP_LOCK
);
4076 status
= decode_stateid(xdr
, &res
->stateid
);
4077 if (unlikely(status
))
4079 } else if (status
== -NFS4ERR_DENIED
)
4080 status
= decode_lock_denied(xdr
, NULL
);
4081 if (res
->open_seqid
!= NULL
)
4082 nfs_increment_open_seqid(status
, res
->open_seqid
);
4083 nfs_increment_lock_seqid(status
, res
->lock_seqid
);
4088 static int decode_lockt(struct xdr_stream
*xdr
, struct nfs_lockt_res
*res
)
4091 status
= decode_op_hdr(xdr
, OP_LOCKT
);
4092 if (status
== -NFS4ERR_DENIED
)
4093 return decode_lock_denied(xdr
, res
->denied
);
4097 static int decode_locku(struct xdr_stream
*xdr
, struct nfs_locku_res
*res
)
4101 status
= decode_op_hdr(xdr
, OP_LOCKU
);
4103 nfs_increment_lock_seqid(status
, res
->seqid
);
4105 status
= decode_stateid(xdr
, &res
->stateid
);
4109 static int decode_release_lockowner(struct xdr_stream
*xdr
)
4111 return decode_op_hdr(xdr
, OP_RELEASE_LOCKOWNER
);
4114 static int decode_lookup(struct xdr_stream
*xdr
)
4116 return decode_op_hdr(xdr
, OP_LOOKUP
);
4119 /* This is too sick! */
4120 static int decode_space_limit(struct xdr_stream
*xdr
, u64
*maxsize
)
4123 uint32_t limit_type
, nblocks
, blocksize
;
4125 p
= xdr_inline_decode(xdr
, 12);
4128 limit_type
= be32_to_cpup(p
++);
4129 switch (limit_type
) {
4131 xdr_decode_hyper(p
, maxsize
);
4134 nblocks
= be32_to_cpup(p
++);
4135 blocksize
= be32_to_cpup(p
);
4136 *maxsize
= (uint64_t)nblocks
* (uint64_t)blocksize
;
4140 print_overflow_msg(__func__
, xdr
);
4144 static int decode_delegation(struct xdr_stream
*xdr
, struct nfs_openres
*res
)
4147 uint32_t delegation_type
;
4150 p
= xdr_inline_decode(xdr
, 4);
4153 delegation_type
= be32_to_cpup(p
);
4154 if (delegation_type
== NFS4_OPEN_DELEGATE_NONE
) {
4155 res
->delegation_type
= 0;
4158 status
= decode_stateid(xdr
, &res
->delegation
);
4159 if (unlikely(status
))
4161 p
= xdr_inline_decode(xdr
, 4);
4164 res
->do_recall
= be32_to_cpup(p
);
4166 switch (delegation_type
) {
4167 case NFS4_OPEN_DELEGATE_READ
:
4168 res
->delegation_type
= FMODE_READ
;
4170 case NFS4_OPEN_DELEGATE_WRITE
:
4171 res
->delegation_type
= FMODE_WRITE
|FMODE_READ
;
4172 if (decode_space_limit(xdr
, &res
->maxsize
) < 0)
4175 return decode_ace(xdr
, NULL
, res
->server
->nfs_client
);
4177 print_overflow_msg(__func__
, xdr
);
4181 static int decode_open(struct xdr_stream
*xdr
, struct nfs_openres
*res
)
4184 uint32_t savewords
, bmlen
, i
;
4187 status
= decode_op_hdr(xdr
, OP_OPEN
);
4189 nfs_increment_open_seqid(status
, res
->seqid
);
4191 status
= decode_stateid(xdr
, &res
->stateid
);
4192 if (unlikely(status
))
4195 decode_change_info(xdr
, &res
->cinfo
);
4197 p
= xdr_inline_decode(xdr
, 8);
4200 res
->rflags
= be32_to_cpup(p
++);
4201 bmlen
= be32_to_cpup(p
);
4205 p
= xdr_inline_decode(xdr
, bmlen
<< 2);
4208 savewords
= min_t(uint32_t, bmlen
, NFS4_BITMAP_SIZE
);
4209 for (i
= 0; i
< savewords
; ++i
)
4210 res
->attrset
[i
] = be32_to_cpup(p
++);
4211 for (; i
< NFS4_BITMAP_SIZE
; i
++)
4212 res
->attrset
[i
] = 0;
4214 return decode_delegation(xdr
, res
);
4216 dprintk("%s: Bitmap too large! Length = %u\n", __func__
, bmlen
);
4219 print_overflow_msg(__func__
, xdr
);
4223 static int decode_open_confirm(struct xdr_stream
*xdr
, struct nfs_open_confirmres
*res
)
4227 status
= decode_op_hdr(xdr
, OP_OPEN_CONFIRM
);
4229 nfs_increment_open_seqid(status
, res
->seqid
);
4231 status
= decode_stateid(xdr
, &res
->stateid
);
4235 static int decode_open_downgrade(struct xdr_stream
*xdr
, struct nfs_closeres
*res
)
4239 status
= decode_op_hdr(xdr
, OP_OPEN_DOWNGRADE
);
4241 nfs_increment_open_seqid(status
, res
->seqid
);
4243 status
= decode_stateid(xdr
, &res
->stateid
);
4247 static int decode_putfh(struct xdr_stream
*xdr
)
4249 return decode_op_hdr(xdr
, OP_PUTFH
);
4252 static int decode_putrootfh(struct xdr_stream
*xdr
)
4254 return decode_op_hdr(xdr
, OP_PUTROOTFH
);
4257 static int decode_read(struct xdr_stream
*xdr
, struct rpc_rqst
*req
, struct nfs_readres
*res
)
4259 struct kvec
*iov
= req
->rq_rcv_buf
.head
;
4261 uint32_t count
, eof
, recvd
, hdrlen
;
4264 status
= decode_op_hdr(xdr
, OP_READ
);
4267 p
= xdr_inline_decode(xdr
, 8);
4270 eof
= be32_to_cpup(p
++);
4271 count
= be32_to_cpup(p
);
4272 hdrlen
= (u8
*) p
- (u8
*) iov
->iov_base
;
4273 recvd
= req
->rq_rcv_buf
.len
- hdrlen
;
4274 if (count
> recvd
) {
4275 dprintk("NFS: server cheating in read reply: "
4276 "count %u > recvd %u\n", count
, recvd
);
4280 xdr_read_pages(xdr
, count
);
4285 print_overflow_msg(__func__
, xdr
);
4289 static int decode_readdir(struct xdr_stream
*xdr
, struct rpc_rqst
*req
, struct nfs4_readdir_res
*readdir
)
4291 struct xdr_buf
*rcvbuf
= &req
->rq_rcv_buf
;
4292 struct kvec
*iov
= rcvbuf
->head
;
4294 u32 recvd
, pglen
= rcvbuf
->page_len
;
4297 status
= decode_op_hdr(xdr
, OP_READDIR
);
4299 status
= decode_verifier(xdr
, readdir
->verifier
.data
);
4300 if (unlikely(status
))
4302 dprintk("%s: verifier = %08x:%08x\n",
4304 ((u32
*)readdir
->verifier
.data
)[0],
4305 ((u32
*)readdir
->verifier
.data
)[1]);
4308 hdrlen
= (char *) xdr
->p
- (char *) iov
->iov_base
;
4309 recvd
= rcvbuf
->len
- hdrlen
;
4312 xdr_read_pages(xdr
, pglen
);
4318 static int decode_readlink(struct xdr_stream
*xdr
, struct rpc_rqst
*req
)
4320 struct xdr_buf
*rcvbuf
= &req
->rq_rcv_buf
;
4321 struct kvec
*iov
= rcvbuf
->head
;
4327 status
= decode_op_hdr(xdr
, OP_READLINK
);
4331 /* Convert length of symlink */
4332 p
= xdr_inline_decode(xdr
, 4);
4335 len
= be32_to_cpup(p
);
4336 if (len
>= rcvbuf
->page_len
|| len
<= 0) {
4337 dprintk("nfs: server returned giant symlink!\n");
4338 return -ENAMETOOLONG
;
4340 hdrlen
= (char *) xdr
->p
- (char *) iov
->iov_base
;
4341 recvd
= req
->rq_rcv_buf
.len
- hdrlen
;
4343 dprintk("NFS: server cheating in readlink reply: "
4344 "count %u > recvd %u\n", len
, recvd
);
4347 xdr_read_pages(xdr
, len
);
4349 * The XDR encode routine has set things up so that
4350 * the link text will be copied directly into the
4351 * buffer. We just have to do overflow-checking,
4352 * and and null-terminate the text (the VFS expects
4353 * null-termination).
4355 xdr_terminate_string(rcvbuf
, len
);
4358 print_overflow_msg(__func__
, xdr
);
4362 static int decode_remove(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
4366 status
= decode_op_hdr(xdr
, OP_REMOVE
);
4369 status
= decode_change_info(xdr
, cinfo
);
4374 static int decode_rename(struct xdr_stream
*xdr
, struct nfs4_change_info
*old_cinfo
,
4375 struct nfs4_change_info
*new_cinfo
)
4379 status
= decode_op_hdr(xdr
, OP_RENAME
);
4382 if ((status
= decode_change_info(xdr
, old_cinfo
)))
4384 status
= decode_change_info(xdr
, new_cinfo
);
4389 static int decode_renew(struct xdr_stream
*xdr
)
4391 return decode_op_hdr(xdr
, OP_RENEW
);
4395 decode_restorefh(struct xdr_stream
*xdr
)
4397 return decode_op_hdr(xdr
, OP_RESTOREFH
);
4400 static int decode_getacl(struct xdr_stream
*xdr
, struct rpc_rqst
*req
,
4406 struct kvec
*iov
= req
->rq_rcv_buf
.head
;
4410 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
4412 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
4414 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
4417 if (unlikely(bitmap
[0] & (FATTR4_WORD0_ACL
- 1U)))
4419 if (likely(bitmap
[0] & FATTR4_WORD0_ACL
)) {
4423 /* We ignore &savep and don't do consistency checks on
4424 * the attr length. Let userspace figure it out.... */
4425 hdrlen
= (u8
*)xdr
->p
- (u8
*)iov
->iov_base
;
4426 recvd
= req
->rq_rcv_buf
.len
- hdrlen
;
4427 if (attrlen
> recvd
) {
4428 dprintk("NFS: server cheating in getattr"
4429 " acl reply: attrlen %u > recvd %u\n",
4433 xdr_read_pages(xdr
, attrlen
);
4436 status
= -EOPNOTSUPP
;
4443 decode_savefh(struct xdr_stream
*xdr
)
4445 return decode_op_hdr(xdr
, OP_SAVEFH
);
4448 static int decode_setattr(struct xdr_stream
*xdr
)
4454 status
= decode_op_hdr(xdr
, OP_SETATTR
);
4457 p
= xdr_inline_decode(xdr
, 4);
4460 bmlen
= be32_to_cpup(p
);
4461 p
= xdr_inline_decode(xdr
, bmlen
<< 2);
4465 print_overflow_msg(__func__
, xdr
);
4469 static int decode_setclientid(struct xdr_stream
*xdr
, struct nfs4_setclientid_res
*res
)
4475 p
= xdr_inline_decode(xdr
, 8);
4478 opnum
= be32_to_cpup(p
++);
4479 if (opnum
!= OP_SETCLIENTID
) {
4480 dprintk("nfs: decode_setclientid: Server returned operation"
4484 nfserr
= be32_to_cpup(p
);
4485 if (nfserr
== NFS_OK
) {
4486 p
= xdr_inline_decode(xdr
, 8 + NFS4_VERIFIER_SIZE
);
4489 p
= xdr_decode_hyper(p
, &res
->clientid
);
4490 memcpy(res
->confirm
.data
, p
, NFS4_VERIFIER_SIZE
);
4491 } else if (nfserr
== NFSERR_CLID_INUSE
) {
4494 /* skip netid string */
4495 p
= xdr_inline_decode(xdr
, 4);
4498 len
= be32_to_cpup(p
);
4499 p
= xdr_inline_decode(xdr
, len
);
4503 /* skip uaddr string */
4504 p
= xdr_inline_decode(xdr
, 4);
4507 len
= be32_to_cpup(p
);
4508 p
= xdr_inline_decode(xdr
, len
);
4511 return -NFSERR_CLID_INUSE
;
4513 return nfs4_stat_to_errno(nfserr
);
4517 print_overflow_msg(__func__
, xdr
);
4521 static int decode_setclientid_confirm(struct xdr_stream
*xdr
)
4523 return decode_op_hdr(xdr
, OP_SETCLIENTID_CONFIRM
);
4526 static int decode_write(struct xdr_stream
*xdr
, struct nfs_writeres
*res
)
4531 status
= decode_op_hdr(xdr
, OP_WRITE
);
4535 p
= xdr_inline_decode(xdr
, 16);
4538 res
->count
= be32_to_cpup(p
++);
4539 res
->verf
->committed
= be32_to_cpup(p
++);
4540 memcpy(res
->verf
->verifier
, p
, 8);
4543 print_overflow_msg(__func__
, xdr
);
4547 static int decode_delegreturn(struct xdr_stream
*xdr
)
4549 return decode_op_hdr(xdr
, OP_DELEGRETURN
);
4552 #if defined(CONFIG_NFS_V4_1)
4553 static int decode_exchange_id(struct xdr_stream
*xdr
,
4554 struct nfs41_exchange_id_res
*res
)
4560 struct nfs_client
*clp
= res
->client
;
4562 status
= decode_op_hdr(xdr
, OP_EXCHANGE_ID
);
4566 p
= xdr_inline_decode(xdr
, 8);
4569 xdr_decode_hyper(p
, &clp
->cl_ex_clid
);
4570 p
= xdr_inline_decode(xdr
, 12);
4573 clp
->cl_seqid
= be32_to_cpup(p
++);
4574 clp
->cl_exchange_flags
= be32_to_cpup(p
++);
4576 /* We ask for SP4_NONE */
4577 dummy
= be32_to_cpup(p
);
4578 if (dummy
!= SP4_NONE
)
4581 /* Throw away minor_id */
4582 p
= xdr_inline_decode(xdr
, 8);
4586 /* Throw away Major id */
4587 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
4588 if (unlikely(status
))
4591 /* Throw away server_scope */
4592 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
4593 if (unlikely(status
))
4596 /* Throw away Implementation id array */
4597 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
4598 if (unlikely(status
))
4603 print_overflow_msg(__func__
, xdr
);
4607 static int decode_chan_attrs(struct xdr_stream
*xdr
,
4608 struct nfs4_channel_attrs
*attrs
)
4613 p
= xdr_inline_decode(xdr
, 28);
4616 attrs
->headerpadsz
= be32_to_cpup(p
++);
4617 attrs
->max_rqst_sz
= be32_to_cpup(p
++);
4618 attrs
->max_resp_sz
= be32_to_cpup(p
++);
4619 attrs
->max_resp_sz_cached
= be32_to_cpup(p
++);
4620 attrs
->max_ops
= be32_to_cpup(p
++);
4621 attrs
->max_reqs
= be32_to_cpup(p
++);
4622 nr_attrs
= be32_to_cpup(p
);
4623 if (unlikely(nr_attrs
> 1)) {
4624 printk(KERN_WARNING
"%s: Invalid rdma channel attrs count %u\n",
4625 __func__
, nr_attrs
);
4628 if (nr_attrs
== 1) {
4629 p
= xdr_inline_decode(xdr
, 4); /* skip rdma_attrs */
4635 print_overflow_msg(__func__
, xdr
);
4639 static int decode_sessionid(struct xdr_stream
*xdr
, struct nfs4_sessionid
*sid
)
4641 return decode_opaque_fixed(xdr
, sid
->data
, NFS4_MAX_SESSIONID_LEN
);
4644 static int decode_create_session(struct xdr_stream
*xdr
,
4645 struct nfs41_create_session_res
*res
)
4649 struct nfs_client
*clp
= res
->client
;
4650 struct nfs4_session
*session
= clp
->cl_session
;
4652 status
= decode_op_hdr(xdr
, OP_CREATE_SESSION
);
4654 status
= decode_sessionid(xdr
, &session
->sess_id
);
4655 if (unlikely(status
))
4659 p
= xdr_inline_decode(xdr
, 8);
4662 clp
->cl_seqid
= be32_to_cpup(p
++);
4663 session
->flags
= be32_to_cpup(p
);
4665 /* Channel attributes */
4666 status
= decode_chan_attrs(xdr
, &session
->fc_attrs
);
4668 status
= decode_chan_attrs(xdr
, &session
->bc_attrs
);
4671 print_overflow_msg(__func__
, xdr
);
4675 static int decode_destroy_session(struct xdr_stream
*xdr
, void *dummy
)
4677 return decode_op_hdr(xdr
, OP_DESTROY_SESSION
);
4680 static int decode_reclaim_complete(struct xdr_stream
*xdr
, void *dummy
)
4682 return decode_op_hdr(xdr
, OP_RECLAIM_COMPLETE
);
4684 #endif /* CONFIG_NFS_V4_1 */
4686 static int decode_sequence(struct xdr_stream
*xdr
,
4687 struct nfs4_sequence_res
*res
,
4688 struct rpc_rqst
*rqstp
)
4690 #if defined(CONFIG_NFS_V4_1)
4691 struct nfs4_sessionid id
;
4696 if (!res
->sr_session
)
4699 status
= decode_op_hdr(xdr
, OP_SEQUENCE
);
4701 status
= decode_sessionid(xdr
, &id
);
4702 if (unlikely(status
))
4706 * If the server returns different values for sessionID, slotID or
4707 * sequence number, the server is looney tunes.
4709 status
= -EREMOTEIO
;
4711 if (memcmp(id
.data
, res
->sr_session
->sess_id
.data
,
4712 NFS4_MAX_SESSIONID_LEN
)) {
4713 dprintk("%s Invalid session id\n", __func__
);
4717 p
= xdr_inline_decode(xdr
, 20);
4722 dummy
= be32_to_cpup(p
++);
4723 if (dummy
!= res
->sr_slot
->seq_nr
) {
4724 dprintk("%s Invalid sequence number\n", __func__
);
4728 dummy
= be32_to_cpup(p
++);
4729 if (dummy
!= res
->sr_slot
- res
->sr_session
->fc_slot_table
.slots
) {
4730 dprintk("%s Invalid slot id\n", __func__
);
4733 /* highest slot id - currently not processed */
4734 dummy
= be32_to_cpup(p
++);
4735 /* target highest slot id - currently not processed */
4736 dummy
= be32_to_cpup(p
++);
4738 res
->sr_status_flags
= be32_to_cpup(p
);
4741 res
->sr_status
= status
;
4744 print_overflow_msg(__func__
, xdr
);
4747 #else /* CONFIG_NFS_V4_1 */
4749 #endif /* CONFIG_NFS_V4_1 */
4753 * END OF "GENERIC" DECODE ROUTINES.
4757 * Decode OPEN_DOWNGRADE response
4759 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_closeres
*res
)
4761 struct xdr_stream xdr
;
4762 struct compound_hdr hdr
;
4765 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4766 status
= decode_compound_hdr(&xdr
, &hdr
);
4769 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
4772 status
= decode_putfh(&xdr
);
4775 status
= decode_open_downgrade(&xdr
, res
);
4778 decode_getfattr(&xdr
, res
->fattr
, res
->server
,
4779 !RPC_IS_ASYNC(rqstp
->rq_task
));
4785 * Decode ACCESS response
4787 static int nfs4_xdr_dec_access(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_accessres
*res
)
4789 struct xdr_stream xdr
;
4790 struct compound_hdr hdr
;
4793 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4794 status
= decode_compound_hdr(&xdr
, &hdr
);
4797 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
4800 status
= decode_putfh(&xdr
);
4803 status
= decode_access(&xdr
, res
);
4806 decode_getfattr(&xdr
, res
->fattr
, res
->server
,
4807 !RPC_IS_ASYNC(rqstp
->rq_task
));
4813 * Decode LOOKUP response
4815 static int nfs4_xdr_dec_lookup(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_lookup_res
*res
)
4817 struct xdr_stream xdr
;
4818 struct compound_hdr hdr
;
4821 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4822 status
= decode_compound_hdr(&xdr
, &hdr
);
4825 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
4828 if ((status
= decode_putfh(&xdr
)) != 0)
4830 if ((status
= decode_lookup(&xdr
)) != 0)
4832 if ((status
= decode_getfh(&xdr
, res
->fh
)) != 0)
4834 status
= decode_getfattr(&xdr
, res
->fattr
, res
->server
4835 ,!RPC_IS_ASYNC(rqstp
->rq_task
));
4841 * Decode LOOKUP_ROOT response
4843 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_lookup_res
*res
)
4845 struct xdr_stream xdr
;
4846 struct compound_hdr hdr
;
4849 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4850 status
= decode_compound_hdr(&xdr
, &hdr
);
4853 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
4856 if ((status
= decode_putrootfh(&xdr
)) != 0)
4858 if ((status
= decode_getfh(&xdr
, res
->fh
)) == 0)
4859 status
= decode_getfattr(&xdr
, res
->fattr
, res
->server
,
4860 !RPC_IS_ASYNC(rqstp
->rq_task
));
4866 * Decode REMOVE response
4868 static int nfs4_xdr_dec_remove(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_removeres
*res
)
4870 struct xdr_stream xdr
;
4871 struct compound_hdr hdr
;
4874 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4875 status
= decode_compound_hdr(&xdr
, &hdr
);
4878 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
4881 if ((status
= decode_putfh(&xdr
)) != 0)
4883 if ((status
= decode_remove(&xdr
, &res
->cinfo
)) != 0)
4885 decode_getfattr(&xdr
, res
->dir_attr
, res
->server
,
4886 !RPC_IS_ASYNC(rqstp
->rq_task
));
4892 * Decode RENAME response
4894 static int nfs4_xdr_dec_rename(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_renameres
*res
)
4896 struct xdr_stream xdr
;
4897 struct compound_hdr hdr
;
4900 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4901 status
= decode_compound_hdr(&xdr
, &hdr
);
4904 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
4907 if ((status
= decode_putfh(&xdr
)) != 0)
4909 if ((status
= decode_savefh(&xdr
)) != 0)
4911 if ((status
= decode_putfh(&xdr
)) != 0)
4913 if ((status
= decode_rename(&xdr
, &res
->old_cinfo
, &res
->new_cinfo
)) != 0)
4915 /* Current FH is target directory */
4916 if (decode_getfattr(&xdr
, res
->new_fattr
, res
->server
,
4917 !RPC_IS_ASYNC(rqstp
->rq_task
)) != 0)
4919 if ((status
= decode_restorefh(&xdr
)) != 0)
4921 decode_getfattr(&xdr
, res
->old_fattr
, res
->server
,
4922 !RPC_IS_ASYNC(rqstp
->rq_task
));
4928 * Decode LINK response
4930 static int nfs4_xdr_dec_link(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_link_res
*res
)
4932 struct xdr_stream xdr
;
4933 struct compound_hdr hdr
;
4936 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4937 status
= decode_compound_hdr(&xdr
, &hdr
);
4940 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
4943 if ((status
= decode_putfh(&xdr
)) != 0)
4945 if ((status
= decode_savefh(&xdr
)) != 0)
4947 if ((status
= decode_putfh(&xdr
)) != 0)
4949 if ((status
= decode_link(&xdr
, &res
->cinfo
)) != 0)
4952 * Note order: OP_LINK leaves the directory as the current
4955 if (decode_getfattr(&xdr
, res
->dir_attr
, res
->server
,
4956 !RPC_IS_ASYNC(rqstp
->rq_task
)) != 0)
4958 if ((status
= decode_restorefh(&xdr
)) != 0)
4960 decode_getfattr(&xdr
, res
->fattr
, res
->server
,
4961 !RPC_IS_ASYNC(rqstp
->rq_task
));
4967 * Decode CREATE response
4969 static int nfs4_xdr_dec_create(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_create_res
*res
)
4971 struct xdr_stream xdr
;
4972 struct compound_hdr hdr
;
4975 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
4976 status
= decode_compound_hdr(&xdr
, &hdr
);
4979 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
4982 if ((status
= decode_putfh(&xdr
)) != 0)
4984 if ((status
= decode_savefh(&xdr
)) != 0)
4986 if ((status
= decode_create(&xdr
,&res
->dir_cinfo
)) != 0)
4988 if ((status
= decode_getfh(&xdr
, res
->fh
)) != 0)
4990 if (decode_getfattr(&xdr
, res
->fattr
, res
->server
,
4991 !RPC_IS_ASYNC(rqstp
->rq_task
)) != 0)
4993 if ((status
= decode_restorefh(&xdr
)) != 0)
4995 decode_getfattr(&xdr
, res
->dir_fattr
, res
->server
,
4996 !RPC_IS_ASYNC(rqstp
->rq_task
));
5002 * Decode SYMLINK response
5004 static int nfs4_xdr_dec_symlink(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_create_res
*res
)
5006 return nfs4_xdr_dec_create(rqstp
, p
, res
);
5010 * Decode GETATTR response
5012 static int nfs4_xdr_dec_getattr(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_getattr_res
*res
)
5014 struct xdr_stream xdr
;
5015 struct compound_hdr hdr
;
5018 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5019 status
= decode_compound_hdr(&xdr
, &hdr
);
5022 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5025 status
= decode_putfh(&xdr
);
5028 status
= decode_getfattr(&xdr
, res
->fattr
, res
->server
,
5029 !RPC_IS_ASYNC(rqstp
->rq_task
));
5035 * Encode an SETACL request
5038 nfs4_xdr_enc_setacl(struct rpc_rqst
*req
, __be32
*p
, struct nfs_setaclargs
*args
)
5040 struct xdr_stream xdr
;
5041 struct compound_hdr hdr
= {
5042 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
5046 xdr_init_encode(&xdr
, &req
->rq_snd_buf
, p
);
5047 encode_compound_hdr(&xdr
, req
, &hdr
);
5048 encode_sequence(&xdr
, &args
->seq_args
, &hdr
);
5049 encode_putfh(&xdr
, args
->fh
, &hdr
);
5050 status
= encode_setacl(&xdr
, args
, &hdr
);
5056 * Decode SETACL response
5059 nfs4_xdr_dec_setacl(struct rpc_rqst
*rqstp
, __be32
*p
,
5060 struct nfs_setaclres
*res
)
5062 struct xdr_stream xdr
;
5063 struct compound_hdr hdr
;
5066 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5067 status
= decode_compound_hdr(&xdr
, &hdr
);
5070 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5073 status
= decode_putfh(&xdr
);
5076 status
= decode_setattr(&xdr
);
5082 * Decode GETACL response
5085 nfs4_xdr_dec_getacl(struct rpc_rqst
*rqstp
, __be32
*p
,
5086 struct nfs_getaclres
*res
)
5088 struct xdr_stream xdr
;
5089 struct compound_hdr hdr
;
5092 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5093 status
= decode_compound_hdr(&xdr
, &hdr
);
5096 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5099 status
= decode_putfh(&xdr
);
5102 status
= decode_getacl(&xdr
, rqstp
, &res
->acl_len
);
5109 * Decode CLOSE response
5111 static int nfs4_xdr_dec_close(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_closeres
*res
)
5113 struct xdr_stream xdr
;
5114 struct compound_hdr hdr
;
5117 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5118 status
= decode_compound_hdr(&xdr
, &hdr
);
5121 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5124 status
= decode_putfh(&xdr
);
5127 status
= decode_close(&xdr
, res
);
5131 * Note: Server may do delete on close for this file
5132 * in which case the getattr call will fail with
5133 * an ESTALE error. Shouldn't be a problem,
5134 * though, since fattr->valid will remain unset.
5136 decode_getfattr(&xdr
, res
->fattr
, res
->server
,
5137 !RPC_IS_ASYNC(rqstp
->rq_task
));
5143 * Decode OPEN response
5145 static int nfs4_xdr_dec_open(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_openres
*res
)
5147 struct xdr_stream xdr
;
5148 struct compound_hdr hdr
;
5151 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5152 status
= decode_compound_hdr(&xdr
, &hdr
);
5155 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5158 status
= decode_putfh(&xdr
);
5161 status
= decode_savefh(&xdr
);
5164 status
= decode_open(&xdr
, res
);
5167 if (decode_getfh(&xdr
, &res
->fh
) != 0)
5169 if (decode_getfattr(&xdr
, res
->f_attr
, res
->server
,
5170 !RPC_IS_ASYNC(rqstp
->rq_task
)) != 0)
5172 if (decode_restorefh(&xdr
) != 0)
5174 decode_getfattr(&xdr
, res
->dir_attr
, res
->server
,
5175 !RPC_IS_ASYNC(rqstp
->rq_task
));
5181 * Decode OPEN_CONFIRM response
5183 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_open_confirmres
*res
)
5185 struct xdr_stream xdr
;
5186 struct compound_hdr hdr
;
5189 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5190 status
= decode_compound_hdr(&xdr
, &hdr
);
5193 status
= decode_putfh(&xdr
);
5196 status
= decode_open_confirm(&xdr
, res
);
5202 * Decode OPEN response
5204 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_openres
*res
)
5206 struct xdr_stream xdr
;
5207 struct compound_hdr hdr
;
5210 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5211 status
= decode_compound_hdr(&xdr
, &hdr
);
5214 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5217 status
= decode_putfh(&xdr
);
5220 status
= decode_open(&xdr
, res
);
5223 decode_getfattr(&xdr
, res
->f_attr
, res
->server
,
5224 !RPC_IS_ASYNC(rqstp
->rq_task
));
5230 * Decode SETATTR response
5232 static int nfs4_xdr_dec_setattr(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_setattrres
*res
)
5234 struct xdr_stream xdr
;
5235 struct compound_hdr hdr
;
5238 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5239 status
= decode_compound_hdr(&xdr
, &hdr
);
5242 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5245 status
= decode_putfh(&xdr
);
5248 status
= decode_setattr(&xdr
);
5251 decode_getfattr(&xdr
, res
->fattr
, res
->server
,
5252 !RPC_IS_ASYNC(rqstp
->rq_task
));
5258 * Decode LOCK response
5260 static int nfs4_xdr_dec_lock(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_lock_res
*res
)
5262 struct xdr_stream xdr
;
5263 struct compound_hdr hdr
;
5266 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5267 status
= decode_compound_hdr(&xdr
, &hdr
);
5270 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5273 status
= decode_putfh(&xdr
);
5276 status
= decode_lock(&xdr
, res
);
5282 * Decode LOCKT response
5284 static int nfs4_xdr_dec_lockt(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_lockt_res
*res
)
5286 struct xdr_stream xdr
;
5287 struct compound_hdr hdr
;
5290 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5291 status
= decode_compound_hdr(&xdr
, &hdr
);
5294 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5297 status
= decode_putfh(&xdr
);
5300 status
= decode_lockt(&xdr
, res
);
5306 * Decode LOCKU response
5308 static int nfs4_xdr_dec_locku(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_locku_res
*res
)
5310 struct xdr_stream xdr
;
5311 struct compound_hdr hdr
;
5314 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5315 status
= decode_compound_hdr(&xdr
, &hdr
);
5318 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5321 status
= decode_putfh(&xdr
);
5324 status
= decode_locku(&xdr
, res
);
5329 static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst
*rqstp
, __be32
*p
, void *dummy
)
5331 struct xdr_stream xdr
;
5332 struct compound_hdr hdr
;
5335 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5336 status
= decode_compound_hdr(&xdr
, &hdr
);
5338 status
= decode_release_lockowner(&xdr
);
5343 * Decode READLINK response
5345 static int nfs4_xdr_dec_readlink(struct rpc_rqst
*rqstp
, __be32
*p
,
5346 struct nfs4_readlink_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_readlink(&xdr
, rqstp
);
5368 * Decode READDIR response
5370 static int nfs4_xdr_dec_readdir(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_readdir_res
*res
)
5372 struct xdr_stream xdr
;
5373 struct compound_hdr hdr
;
5376 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5377 status
= decode_compound_hdr(&xdr
, &hdr
);
5380 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5383 status
= decode_putfh(&xdr
);
5386 status
= decode_readdir(&xdr
, rqstp
, res
);
5392 * Decode Read response
5394 static int nfs4_xdr_dec_read(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_readres
*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_read(&xdr
, rqstp
, res
);
5412 status
= res
->count
;
5418 * Decode WRITE response
5420 static int nfs4_xdr_dec_write(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_writeres
*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_write(&xdr
, res
);
5439 decode_getfattr(&xdr
, res
->fattr
, res
->server
,
5440 !RPC_IS_ASYNC(rqstp
->rq_task
));
5442 status
= res
->count
;
5448 * Decode COMMIT response
5450 static int nfs4_xdr_dec_commit(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs_writeres
*res
)
5452 struct xdr_stream xdr
;
5453 struct compound_hdr hdr
;
5456 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5457 status
= decode_compound_hdr(&xdr
, &hdr
);
5460 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5463 status
= decode_putfh(&xdr
);
5466 status
= decode_commit(&xdr
, res
);
5469 decode_getfattr(&xdr
, res
->fattr
, res
->server
,
5470 !RPC_IS_ASYNC(rqstp
->rq_task
));
5476 * Decode FSINFO response
5478 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst
*req
, __be32
*p
,
5479 struct nfs4_fsinfo_res
*res
)
5481 struct xdr_stream xdr
;
5482 struct compound_hdr hdr
;
5485 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
5486 status
= decode_compound_hdr(&xdr
, &hdr
);
5488 status
= decode_sequence(&xdr
, &res
->seq_res
, req
);
5490 status
= decode_putfh(&xdr
);
5492 status
= decode_fsinfo(&xdr
, res
->fsinfo
);
5497 * Decode PATHCONF response
5499 static int nfs4_xdr_dec_pathconf(struct rpc_rqst
*req
, __be32
*p
,
5500 struct nfs4_pathconf_res
*res
)
5502 struct xdr_stream xdr
;
5503 struct compound_hdr hdr
;
5506 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
5507 status
= decode_compound_hdr(&xdr
, &hdr
);
5509 status
= decode_sequence(&xdr
, &res
->seq_res
, req
);
5511 status
= decode_putfh(&xdr
);
5513 status
= decode_pathconf(&xdr
, res
->pathconf
);
5518 * Decode STATFS response
5520 static int nfs4_xdr_dec_statfs(struct rpc_rqst
*req
, __be32
*p
,
5521 struct nfs4_statfs_res
*res
)
5523 struct xdr_stream xdr
;
5524 struct compound_hdr hdr
;
5527 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
5528 status
= decode_compound_hdr(&xdr
, &hdr
);
5530 status
= decode_sequence(&xdr
, &res
->seq_res
, req
);
5532 status
= decode_putfh(&xdr
);
5534 status
= decode_statfs(&xdr
, res
->fsstat
);
5539 * Decode GETATTR_BITMAP response
5541 static int nfs4_xdr_dec_server_caps(struct rpc_rqst
*req
, __be32
*p
, struct nfs4_server_caps_res
*res
)
5543 struct xdr_stream xdr
;
5544 struct compound_hdr hdr
;
5547 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
5548 status
= decode_compound_hdr(&xdr
, &hdr
);
5551 status
= decode_sequence(&xdr
, &res
->seq_res
, req
);
5554 if ((status
= decode_putfh(&xdr
)) != 0)
5556 status
= decode_server_caps(&xdr
, res
);
5562 * Decode RENEW response
5564 static int nfs4_xdr_dec_renew(struct rpc_rqst
*rqstp
, __be32
*p
, void *dummy
)
5566 struct xdr_stream xdr
;
5567 struct compound_hdr hdr
;
5570 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5571 status
= decode_compound_hdr(&xdr
, &hdr
);
5573 status
= decode_renew(&xdr
);
5578 * Decode SETCLIENTID response
5580 static int nfs4_xdr_dec_setclientid(struct rpc_rqst
*req
, __be32
*p
,
5581 struct nfs4_setclientid_res
*res
)
5583 struct xdr_stream xdr
;
5584 struct compound_hdr hdr
;
5587 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
5588 status
= decode_compound_hdr(&xdr
, &hdr
);
5590 status
= decode_setclientid(&xdr
, res
);
5595 * Decode SETCLIENTID_CONFIRM response
5597 static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst
*req
, __be32
*p
, struct nfs_fsinfo
*fsinfo
)
5599 struct xdr_stream xdr
;
5600 struct compound_hdr hdr
;
5603 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
5604 status
= decode_compound_hdr(&xdr
, &hdr
);
5606 status
= decode_setclientid_confirm(&xdr
);
5608 status
= decode_putrootfh(&xdr
);
5610 status
= decode_fsinfo(&xdr
, fsinfo
);
5615 * Decode DELEGRETURN response
5617 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst
*rqstp
, __be32
*p
, struct nfs4_delegreturnres
*res
)
5619 struct xdr_stream xdr
;
5620 struct compound_hdr hdr
;
5623 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5624 status
= decode_compound_hdr(&xdr
, &hdr
);
5627 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5630 status
= decode_putfh(&xdr
);
5633 status
= decode_delegreturn(&xdr
);
5636 decode_getfattr(&xdr
, res
->fattr
, res
->server
,
5637 !RPC_IS_ASYNC(rqstp
->rq_task
));
5643 * Decode FS_LOCATIONS response
5645 static int nfs4_xdr_dec_fs_locations(struct rpc_rqst
*req
, __be32
*p
,
5646 struct nfs4_fs_locations_res
*res
)
5648 struct xdr_stream xdr
;
5649 struct compound_hdr hdr
;
5652 xdr_init_decode(&xdr
, &req
->rq_rcv_buf
, p
);
5653 status
= decode_compound_hdr(&xdr
, &hdr
);
5656 status
= decode_sequence(&xdr
, &res
->seq_res
, req
);
5659 if ((status
= decode_putfh(&xdr
)) != 0)
5661 if ((status
= decode_lookup(&xdr
)) != 0)
5663 xdr_enter_page(&xdr
, PAGE_SIZE
);
5664 status
= decode_getfattr(&xdr
, &res
->fs_locations
->fattr
,
5665 res
->fs_locations
->server
,
5666 !RPC_IS_ASYNC(req
->rq_task
));
5671 #if defined(CONFIG_NFS_V4_1)
5673 * Decode EXCHANGE_ID response
5675 static int nfs4_xdr_dec_exchange_id(struct rpc_rqst
*rqstp
, uint32_t *p
,
5678 struct xdr_stream xdr
;
5679 struct compound_hdr hdr
;
5682 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5683 status
= decode_compound_hdr(&xdr
, &hdr
);
5685 status
= decode_exchange_id(&xdr
, res
);
5690 * Decode CREATE_SESSION response
5692 static int nfs4_xdr_dec_create_session(struct rpc_rqst
*rqstp
, uint32_t *p
,
5693 struct nfs41_create_session_res
*res
)
5695 struct xdr_stream xdr
;
5696 struct compound_hdr hdr
;
5699 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5700 status
= decode_compound_hdr(&xdr
, &hdr
);
5702 status
= decode_create_session(&xdr
, res
);
5707 * Decode DESTROY_SESSION response
5709 static int nfs4_xdr_dec_destroy_session(struct rpc_rqst
*rqstp
, uint32_t *p
,
5712 struct xdr_stream xdr
;
5713 struct compound_hdr hdr
;
5716 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5717 status
= decode_compound_hdr(&xdr
, &hdr
);
5719 status
= decode_destroy_session(&xdr
, dummy
);
5724 * Decode SEQUENCE response
5726 static int nfs4_xdr_dec_sequence(struct rpc_rqst
*rqstp
, uint32_t *p
,
5727 struct nfs4_sequence_res
*res
)
5729 struct xdr_stream xdr
;
5730 struct compound_hdr hdr
;
5733 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5734 status
= decode_compound_hdr(&xdr
, &hdr
);
5736 status
= decode_sequence(&xdr
, res
, rqstp
);
5741 * Decode GET_LEASE_TIME response
5743 static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst
*rqstp
, uint32_t *p
,
5744 struct nfs4_get_lease_time_res
*res
)
5746 struct xdr_stream xdr
;
5747 struct compound_hdr hdr
;
5750 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5751 status
= decode_compound_hdr(&xdr
, &hdr
);
5753 status
= decode_sequence(&xdr
, &res
->lr_seq_res
, rqstp
);
5755 status
= decode_putrootfh(&xdr
);
5757 status
= decode_fsinfo(&xdr
, res
->lr_fsinfo
);
5762 * Decode RECLAIM_COMPLETE response
5764 static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst
*rqstp
, uint32_t *p
,
5765 struct nfs41_reclaim_complete_res
*res
)
5767 struct xdr_stream xdr
;
5768 struct compound_hdr hdr
;
5771 xdr_init_decode(&xdr
, &rqstp
->rq_rcv_buf
, p
);
5772 status
= decode_compound_hdr(&xdr
, &hdr
);
5774 status
= decode_sequence(&xdr
, &res
->seq_res
, rqstp
);
5776 status
= decode_reclaim_complete(&xdr
, (void *)NULL
);
5779 #endif /* CONFIG_NFS_V4_1 */
5781 __be32
*nfs4_decode_dirent(struct xdr_stream
*xdr
, struct nfs_entry
*entry
,
5782 struct nfs_server
*server
, int plus
)
5784 uint32_t bitmap
[2] = {0};
5786 __be32
*p
= xdr_inline_decode(xdr
, 4);
5790 p
= xdr_inline_decode(xdr
, 4);
5794 return ERR_PTR(-EAGAIN
);
5796 return ERR_PTR(-EBADCOOKIE
);
5799 p
= xdr_inline_decode(xdr
, 12);
5802 entry
->prev_cookie
= entry
->cookie
;
5803 p
= xdr_decode_hyper(p
, &entry
->cookie
);
5804 entry
->len
= ntohl(*p
++);
5806 p
= xdr_inline_decode(xdr
, entry
->len
+ 4);
5809 entry
->name
= (const char *) p
;
5810 p
+= XDR_QUADLEN(entry
->len
);
5813 * In case the server doesn't return an inode number,
5814 * we fake one here. (We don't use inode number 0,
5815 * since glibc seems to choke on it...)
5819 len
= ntohl(*p
++); /* bitmap length */
5821 p
= xdr_inline_decode(xdr
, 4);
5824 bitmap
[0] = ntohl(*p
++);
5826 p
= xdr_inline_decode(xdr
, 4);
5829 bitmap
[1] = ntohl(*p
++);
5833 p
= xdr_inline_decode(xdr
, 4);
5836 len
= XDR_QUADLEN(ntohl(*p
++)); /* attribute buffer length */
5838 if (decode_getfattr_attrs(xdr
, bitmap
, entry
->fattr
, entry
->fh
, server
, 1) < 0)
5840 if (entry
->fattr
->valid
& NFS_ATTR_FATTR_FILEID
)
5841 entry
->ino
= entry
->fattr
->fileid
;
5844 p
= xdr_inline_peek(xdr
, 8);
5846 entry
->eof
= !p
[0] && p
[1];
5853 print_overflow_msg(__func__
, xdr
);
5854 return ERR_PTR(-EIO
);
5858 * We need to translate between nfs status return values and
5859 * the local errno values which may not be the same.
5866 { NFS4ERR_PERM
, -EPERM
},
5867 { NFS4ERR_NOENT
, -ENOENT
},
5868 { NFS4ERR_IO
, -errno_NFSERR_IO
},
5869 { NFS4ERR_NXIO
, -ENXIO
},
5870 { NFS4ERR_ACCESS
, -EACCES
},
5871 { NFS4ERR_EXIST
, -EEXIST
},
5872 { NFS4ERR_XDEV
, -EXDEV
},
5873 { NFS4ERR_NOTDIR
, -ENOTDIR
},
5874 { NFS4ERR_ISDIR
, -EISDIR
},
5875 { NFS4ERR_INVAL
, -EINVAL
},
5876 { NFS4ERR_FBIG
, -EFBIG
},
5877 { NFS4ERR_NOSPC
, -ENOSPC
},
5878 { NFS4ERR_ROFS
, -EROFS
},
5879 { NFS4ERR_MLINK
, -EMLINK
},
5880 { NFS4ERR_NAMETOOLONG
, -ENAMETOOLONG
},
5881 { NFS4ERR_NOTEMPTY
, -ENOTEMPTY
},
5882 { NFS4ERR_DQUOT
, -EDQUOT
},
5883 { NFS4ERR_STALE
, -ESTALE
},
5884 { NFS4ERR_BADHANDLE
, -EBADHANDLE
},
5885 { NFS4ERR_BADOWNER
, -EINVAL
},
5886 { NFS4ERR_BADNAME
, -EINVAL
},
5887 { NFS4ERR_BAD_COOKIE
, -EBADCOOKIE
},
5888 { NFS4ERR_NOTSUPP
, -ENOTSUPP
},
5889 { NFS4ERR_TOOSMALL
, -ETOOSMALL
},
5890 { NFS4ERR_SERVERFAULT
, -EREMOTEIO
},
5891 { NFS4ERR_BADTYPE
, -EBADTYPE
},
5892 { NFS4ERR_LOCKED
, -EAGAIN
},
5893 { NFS4ERR_SYMLINK
, -ELOOP
},
5894 { NFS4ERR_OP_ILLEGAL
, -EOPNOTSUPP
},
5895 { NFS4ERR_DEADLOCK
, -EDEADLK
},
5896 { NFS4ERR_WRONGSEC
, -EPERM
}, /* FIXME: this needs
5897 * to be handled by a
5904 * Convert an NFS error code to a local one.
5905 * This one is used jointly by NFSv2 and NFSv3.
5908 nfs4_stat_to_errno(int stat
)
5911 for (i
= 0; nfs_errtbl
[i
].stat
!= -1; i
++) {
5912 if (nfs_errtbl
[i
].stat
== stat
)
5913 return nfs_errtbl
[i
].errno
;
5915 if (stat
<= 10000 || stat
> 10100) {
5916 /* The server is looney tunes. */
5919 /* If we cannot translate the error, the recovery routines should
5921 * Note: remaining NFSv4 error codes have values > 10000, so should
5922 * not conflict with native Linux error codes.
5927 #define PROC(proc, argtype, restype) \
5928 [NFSPROC4_CLNT_##proc] = { \
5929 .p_proc = NFSPROC4_COMPOUND, \
5930 .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \
5931 .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \
5932 .p_arglen = NFS4_##argtype##_sz, \
5933 .p_replen = NFS4_##restype##_sz, \
5934 .p_statidx = NFSPROC4_CLNT_##proc, \
5938 struct rpc_procinfo nfs4_procedures
[] = {
5939 PROC(READ
, enc_read
, dec_read
),
5940 PROC(WRITE
, enc_write
, dec_write
),
5941 PROC(COMMIT
, enc_commit
, dec_commit
),
5942 PROC(OPEN
, enc_open
, dec_open
),
5943 PROC(OPEN_CONFIRM
, enc_open_confirm
, dec_open_confirm
),
5944 PROC(OPEN_NOATTR
, enc_open_noattr
, dec_open_noattr
),
5945 PROC(OPEN_DOWNGRADE
, enc_open_downgrade
, dec_open_downgrade
),
5946 PROC(CLOSE
, enc_close
, dec_close
),
5947 PROC(SETATTR
, enc_setattr
, dec_setattr
),
5948 PROC(FSINFO
, enc_fsinfo
, dec_fsinfo
),
5949 PROC(RENEW
, enc_renew
, dec_renew
),
5950 PROC(SETCLIENTID
, enc_setclientid
, dec_setclientid
),
5951 PROC(SETCLIENTID_CONFIRM
, enc_setclientid_confirm
, dec_setclientid_confirm
),
5952 PROC(LOCK
, enc_lock
, dec_lock
),
5953 PROC(LOCKT
, enc_lockt
, dec_lockt
),
5954 PROC(LOCKU
, enc_locku
, dec_locku
),
5955 PROC(ACCESS
, enc_access
, dec_access
),
5956 PROC(GETATTR
, enc_getattr
, dec_getattr
),
5957 PROC(LOOKUP
, enc_lookup
, dec_lookup
),
5958 PROC(LOOKUP_ROOT
, enc_lookup_root
, dec_lookup_root
),
5959 PROC(REMOVE
, enc_remove
, dec_remove
),
5960 PROC(RENAME
, enc_rename
, dec_rename
),
5961 PROC(LINK
, enc_link
, dec_link
),
5962 PROC(SYMLINK
, enc_symlink
, dec_symlink
),
5963 PROC(CREATE
, enc_create
, dec_create
),
5964 PROC(PATHCONF
, enc_pathconf
, dec_pathconf
),
5965 PROC(STATFS
, enc_statfs
, dec_statfs
),
5966 PROC(READLINK
, enc_readlink
, dec_readlink
),
5967 PROC(READDIR
, enc_readdir
, dec_readdir
),
5968 PROC(SERVER_CAPS
, enc_server_caps
, dec_server_caps
),
5969 PROC(DELEGRETURN
, enc_delegreturn
, dec_delegreturn
),
5970 PROC(GETACL
, enc_getacl
, dec_getacl
),
5971 PROC(SETACL
, enc_setacl
, dec_setacl
),
5972 PROC(FS_LOCATIONS
, enc_fs_locations
, dec_fs_locations
),
5973 PROC(RELEASE_LOCKOWNER
, enc_release_lockowner
, dec_release_lockowner
),
5974 #if defined(CONFIG_NFS_V4_1)
5975 PROC(EXCHANGE_ID
, enc_exchange_id
, dec_exchange_id
),
5976 PROC(CREATE_SESSION
, enc_create_session
, dec_create_session
),
5977 PROC(DESTROY_SESSION
, enc_destroy_session
, dec_destroy_session
),
5978 PROC(SEQUENCE
, enc_sequence
, dec_sequence
),
5979 PROC(GET_LEASE_TIME
, enc_get_lease_time
, dec_get_lease_time
),
5980 PROC(RECLAIM_COMPLETE
, enc_reclaim_complete
, dec_reclaim_complete
),
5981 #endif /* CONFIG_NFS_V4_1 */
5984 struct rpc_version nfs_version4
= {
5986 .nrprocs
= ARRAY_SIZE(nfs4_procedures
),
5987 .procs
= nfs4_procedures