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/module.h>
48 #include <linux/utsname.h>
49 #include <linux/sunrpc/clnt.h>
50 #include <linux/sunrpc/msg_prot.h>
51 #include <linux/sunrpc/gss_api.h>
52 #include <linux/nfs.h>
53 #include <linux/nfs4.h>
54 #include <linux/nfs_fs.h>
55 #include <linux/fs_struct.h>
59 #include "nfs4idmap.h"
60 #include "nfs4session.h"
64 #define NFSDBG_FACILITY NFSDBG_XDR
66 /* Mapping from NFS error code to "errno" error code. */
67 #define errno_NFSERR_IO EIO
69 static int nfs4_stat_to_errno(int);
71 /* NFSv4 COMPOUND tags are only wanted for debugging purposes */
73 #define NFS4_MAXTAGLEN 20
75 #define NFS4_MAXTAGLEN 0
78 /* lock,open owner id:
79 * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
81 #define open_owner_id_maxsz (1 + 2 + 1 + 1 + 2)
82 #define lock_owner_id_maxsz (1 + 1 + 4)
83 #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
84 #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
85 #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
86 #define op_encode_hdr_maxsz (1)
87 #define op_decode_hdr_maxsz (2)
88 #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
89 #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
90 #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
91 #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
92 #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
94 #define decode_putfh_maxsz (op_decode_hdr_maxsz)
95 #define encode_putrootfh_maxsz (op_encode_hdr_maxsz)
96 #define decode_putrootfh_maxsz (op_decode_hdr_maxsz)
97 #define encode_getfh_maxsz (op_encode_hdr_maxsz)
98 #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
99 ((3+NFS4_FHSIZE) >> 2))
100 #define nfs4_fattr_bitmap_maxsz 4
101 #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
102 #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
103 #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
104 #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
105 #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
106 #ifdef CONFIG_NFS_V4_SECURITY_LABEL
107 /* PI(4 bytes) + LFS(4 bytes) + 1(for null terminator?) + MAXLABELLEN */
108 #define nfs4_label_maxsz (4 + 4 + 1 + XDR_QUADLEN(NFS4_MAXLABELLEN))
110 #define nfs4_label_maxsz 0
112 /* We support only one layout type per file system */
113 #define decode_mdsthreshold_maxsz (1 + 1 + nfs4_fattr_bitmap_maxsz + 1 + 8)
114 /* This is based on getfattr, which uses the most attributes: */
115 #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
116 3 + 3 + 3 + nfs4_owner_maxsz + \
117 nfs4_group_maxsz + nfs4_label_maxsz + \
118 decode_mdsthreshold_maxsz))
119 #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
120 nfs4_fattr_value_maxsz)
121 #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
122 #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
128 #define encode_savefh_maxsz (op_encode_hdr_maxsz)
129 #define decode_savefh_maxsz (op_decode_hdr_maxsz)
130 #define encode_restorefh_maxsz (op_encode_hdr_maxsz)
131 #define decode_restorefh_maxsz (op_decode_hdr_maxsz)
132 #define encode_fsinfo_maxsz (encode_getattr_maxsz)
133 /* The 5 accounts for the PNFS attributes, and assumes that at most three
134 * layout types will be returned.
136 #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \
137 nfs4_fattr_bitmap_maxsz + 4 + 8 + 5)
138 #define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
139 #define decode_renew_maxsz (op_decode_hdr_maxsz)
140 #define encode_setclientid_maxsz \
141 (op_encode_hdr_maxsz + \
142 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
144 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
146 1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
147 1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
149 #define decode_setclientid_maxsz \
150 (op_decode_hdr_maxsz + \
152 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
153 1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
154 1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN))
155 #define encode_setclientid_confirm_maxsz \
156 (op_encode_hdr_maxsz + \
157 3 + (NFS4_VERIFIER_SIZE >> 2))
158 #define decode_setclientid_confirm_maxsz \
159 (op_decode_hdr_maxsz)
160 #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
161 #define decode_lookup_maxsz (op_decode_hdr_maxsz)
162 #define encode_share_access_maxsz \
164 #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
165 #define encode_opentype_maxsz (1 + encode_createmode_maxsz)
166 #define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
167 #define encode_open_maxsz (op_encode_hdr_maxsz + \
168 2 + encode_share_access_maxsz + 2 + \
169 open_owner_id_maxsz + \
170 encode_opentype_maxsz + \
171 encode_claim_null_maxsz)
172 #define decode_space_limit_maxsz (3)
173 #define decode_ace_maxsz (3 + nfs4_owner_maxsz)
174 #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
175 decode_space_limit_maxsz + \
177 #define decode_change_info_maxsz (5)
178 #define decode_open_maxsz (op_decode_hdr_maxsz + \
179 decode_stateid_maxsz + \
180 decode_change_info_maxsz + 1 + \
181 nfs4_fattr_bitmap_maxsz + \
182 decode_delegation_maxsz)
183 #define encode_open_confirm_maxsz \
184 (op_encode_hdr_maxsz + \
185 encode_stateid_maxsz + 1)
186 #define decode_open_confirm_maxsz \
187 (op_decode_hdr_maxsz + \
188 decode_stateid_maxsz)
189 #define encode_open_downgrade_maxsz \
190 (op_encode_hdr_maxsz + \
191 encode_stateid_maxsz + 1 + \
192 encode_share_access_maxsz)
193 #define decode_open_downgrade_maxsz \
194 (op_decode_hdr_maxsz + \
195 decode_stateid_maxsz)
196 #define encode_close_maxsz (op_encode_hdr_maxsz + \
197 1 + encode_stateid_maxsz)
198 #define decode_close_maxsz (op_decode_hdr_maxsz + \
199 decode_stateid_maxsz)
200 #define encode_setattr_maxsz (op_encode_hdr_maxsz + \
201 encode_stateid_maxsz + \
203 #define decode_setattr_maxsz (op_decode_hdr_maxsz + \
204 nfs4_fattr_bitmap_maxsz)
205 #define encode_read_maxsz (op_encode_hdr_maxsz + \
206 encode_stateid_maxsz + 3)
207 #define decode_read_maxsz (op_decode_hdr_maxsz + 2)
208 #define encode_readdir_maxsz (op_encode_hdr_maxsz + \
209 2 + encode_verifier_maxsz + 5 + \
211 #define decode_readdir_maxsz (op_decode_hdr_maxsz + \
212 decode_verifier_maxsz)
213 #define encode_readlink_maxsz (op_encode_hdr_maxsz)
214 #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1)
215 #define encode_write_maxsz (op_encode_hdr_maxsz + \
216 encode_stateid_maxsz + 4)
217 #define decode_write_maxsz (op_decode_hdr_maxsz + \
218 2 + decode_verifier_maxsz)
219 #define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
220 #define decode_commit_maxsz (op_decode_hdr_maxsz + \
221 decode_verifier_maxsz)
222 #define encode_remove_maxsz (op_encode_hdr_maxsz + \
224 #define decode_remove_maxsz (op_decode_hdr_maxsz + \
225 decode_change_info_maxsz)
226 #define encode_rename_maxsz (op_encode_hdr_maxsz + \
228 #define decode_rename_maxsz (op_decode_hdr_maxsz + \
229 decode_change_info_maxsz + \
230 decode_change_info_maxsz)
231 #define encode_link_maxsz (op_encode_hdr_maxsz + \
233 #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
234 #define encode_lockowner_maxsz (7)
235 #define encode_lock_maxsz (op_encode_hdr_maxsz + \
237 1 + encode_stateid_maxsz + 1 + \
238 encode_lockowner_maxsz)
239 #define decode_lock_denied_maxsz \
240 (8 + decode_lockowner_maxsz)
241 #define decode_lock_maxsz (op_decode_hdr_maxsz + \
242 decode_lock_denied_maxsz)
243 #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
244 encode_lockowner_maxsz)
245 #define decode_lockt_maxsz (op_decode_hdr_maxsz + \
246 decode_lock_denied_maxsz)
247 #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
248 encode_stateid_maxsz + \
250 #define decode_locku_maxsz (op_decode_hdr_maxsz + \
251 decode_stateid_maxsz)
252 #define encode_release_lockowner_maxsz \
253 (op_encode_hdr_maxsz + \
254 encode_lockowner_maxsz)
255 #define decode_release_lockowner_maxsz \
256 (op_decode_hdr_maxsz)
257 #define encode_access_maxsz (op_encode_hdr_maxsz + 1)
258 #define decode_access_maxsz (op_decode_hdr_maxsz + 2)
259 #define encode_symlink_maxsz (op_encode_hdr_maxsz + \
260 1 + nfs4_name_maxsz + \
263 #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
264 #define encode_create_maxsz (op_encode_hdr_maxsz + \
265 1 + 2 + nfs4_name_maxsz + \
267 #define decode_create_maxsz (op_decode_hdr_maxsz + \
268 decode_change_info_maxsz + \
269 nfs4_fattr_bitmap_maxsz)
270 #define encode_statfs_maxsz (encode_getattr_maxsz)
271 #define decode_statfs_maxsz (decode_getattr_maxsz)
272 #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
273 #define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
274 #define encode_getacl_maxsz (encode_getattr_maxsz)
275 #define decode_getacl_maxsz (op_decode_hdr_maxsz + \
276 nfs4_fattr_bitmap_maxsz + 1)
277 #define encode_setacl_maxsz (op_encode_hdr_maxsz + \
278 encode_stateid_maxsz + 3)
279 #define decode_setacl_maxsz (decode_setattr_maxsz)
280 #define encode_fs_locations_maxsz \
281 (encode_getattr_maxsz)
282 #define decode_fs_locations_maxsz \
284 #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
285 #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4))
287 #if defined(CONFIG_NFS_V4_1)
288 #define NFS4_MAX_MACHINE_NAME_LEN (64)
289 #define IMPL_NAME_LIMIT (sizeof(utsname()->sysname) + sizeof(utsname()->release) + \
290 sizeof(utsname()->version) + sizeof(utsname()->machine) + 8)
292 #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
293 encode_verifier_maxsz + \
294 1 /* co_ownerid.len */ + \
295 /* eia_clientowner */ \
296 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
299 /* max is SP4_MACH_CRED (for now) */ + \
300 1 + NFS4_OP_MAP_NUM_WORDS + \
301 1 + NFS4_OP_MAP_NUM_WORDS + \
302 1 /* implementation id array of size 1 */ + \
303 1 /* nii_domain */ + \
304 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
306 XDR_QUADLEN(IMPL_NAME_LIMIT) + \
308 #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
309 2 /* eir_clientid */ + \
310 1 /* eir_sequenceid */ + \
311 1 /* eir_flags */ + \
313 /* max is SP4_MACH_CRED (for now) */ + \
314 1 + NFS4_OP_MAP_NUM_WORDS + \
315 1 + NFS4_OP_MAP_NUM_WORDS + \
316 2 /* eir_server_owner.so_minor_id */ + \
317 /* eir_server_owner.so_major_id<> */ \
318 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
319 /* eir_server_scope<> */ \
320 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
321 1 /* eir_server_impl_id array length */ + \
322 1 /* nii_domain */ + \
323 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
325 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
327 #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
328 #define decode_channel_attrs_maxsz (6 + \
329 1 /* ca_rdma_ird.len */ + \
331 #define encode_create_session_maxsz (op_encode_hdr_maxsz + \
332 2 /* csa_clientid */ + \
333 1 /* csa_sequence */ + \
334 1 /* csa_flags */ + \
335 encode_channel_attrs_maxsz + \
336 encode_channel_attrs_maxsz + \
337 1 /* csa_cb_program */ + \
338 1 /* csa_sec_parms.len (1) */ + \
339 1 /* cb_secflavor (AUTH_SYS) */ + \
341 1 /* machinename.len */ + \
342 XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
345 1 /* gids.len (0) */)
346 #define decode_create_session_maxsz (op_decode_hdr_maxsz + \
347 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
348 1 /* csr_sequence */ + \
349 1 /* csr_flags */ + \
350 decode_channel_attrs_maxsz + \
351 decode_channel_attrs_maxsz)
352 #define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \
354 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
355 1 /* bctsa_dir */ + \
356 1 /* bctsa_use_conn_in_rdma_mode */)
357 #define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \
359 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
360 1 /* bctsr_dir */ + \
361 1 /* bctsr_use_conn_in_rdma_mode */)
362 #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
363 #define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
364 #define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2)
365 #define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz)
366 #define encode_sequence_maxsz (op_encode_hdr_maxsz + \
367 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
368 #define decode_sequence_maxsz (op_decode_hdr_maxsz + \
369 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
370 #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
371 #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
372 #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + \
373 XDR_QUADLEN(NFS4_DEVICEID4_SIZE) + \
374 1 /* layout type */ + \
376 1 /* bitmap size */ + \
377 1 /* notification bitmap length */ + \
378 1 /* notification bitmap, word 0 */)
379 #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \
380 1 /* layout type */ + \
381 1 /* opaque devaddr4 length */ + \
382 /* devaddr4 payload is read into page */ \
383 1 /* notification bitmap length */ + \
384 1 /* notification bitmap, word 0 */)
385 #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \
386 encode_stateid_maxsz)
387 #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \
388 decode_stateid_maxsz + \
389 XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE))
390 #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \
394 encode_stateid_maxsz + \
395 1 /* new offset (true) */ + \
396 2 /* last byte written */ + \
397 1 /* nt_timechanged (false) */ + \
398 1 /* layoutupdate4 layout type */ + \
399 1 /* layoutupdate4 opaqueue len */)
400 /* the actual content of layoutupdate4 should
401 be allocated by drivers and spliced in
402 using xdr_write_pages */
403 #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3)
404 #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \
405 encode_stateid_maxsz + \
407 XDR_QUADLEN(NFS4_OPAQUE_LIMIT))
408 #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \
409 1 + decode_stateid_maxsz)
410 #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1)
411 #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz
412 #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \
413 XDR_QUADLEN(NFS4_STATEID_SIZE))
414 #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1)
415 #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \
416 XDR_QUADLEN(NFS4_STATEID_SIZE))
417 #define decode_free_stateid_maxsz (op_decode_hdr_maxsz)
418 #else /* CONFIG_NFS_V4_1 */
419 #define encode_sequence_maxsz 0
420 #define decode_sequence_maxsz 0
421 #define encode_layoutreturn_maxsz 0
422 #define decode_layoutreturn_maxsz 0
423 #endif /* CONFIG_NFS_V4_1 */
425 #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
426 #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
427 #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
428 encode_sequence_maxsz + \
429 encode_putfh_maxsz + \
431 #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
432 decode_sequence_maxsz + \
433 decode_putfh_maxsz + \
435 #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
436 encode_sequence_maxsz + \
437 encode_putfh_maxsz + \
438 encode_readlink_maxsz)
439 #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
440 decode_sequence_maxsz + \
441 decode_putfh_maxsz + \
442 decode_readlink_maxsz)
443 #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
444 encode_sequence_maxsz + \
445 encode_putfh_maxsz + \
446 encode_readdir_maxsz)
447 #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
448 decode_sequence_maxsz + \
449 decode_putfh_maxsz + \
450 decode_readdir_maxsz)
451 #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
452 encode_sequence_maxsz + \
453 encode_putfh_maxsz + \
454 encode_write_maxsz + \
455 encode_getattr_maxsz)
456 #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
457 decode_sequence_maxsz + \
458 decode_putfh_maxsz + \
459 decode_write_maxsz + \
460 decode_getattr_maxsz)
461 #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
462 encode_sequence_maxsz + \
463 encode_putfh_maxsz + \
465 #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
466 decode_sequence_maxsz + \
467 decode_putfh_maxsz + \
469 #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
470 encode_sequence_maxsz + \
471 encode_putfh_maxsz + \
472 encode_open_maxsz + \
473 encode_access_maxsz + \
474 encode_getfh_maxsz + \
475 encode_getattr_maxsz)
476 #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
477 decode_sequence_maxsz + \
478 decode_putfh_maxsz + \
479 decode_open_maxsz + \
480 decode_access_maxsz + \
481 decode_getfh_maxsz + \
482 decode_getattr_maxsz)
483 #define NFS4_enc_open_confirm_sz \
484 (compound_encode_hdr_maxsz + \
485 encode_putfh_maxsz + \
486 encode_open_confirm_maxsz)
487 #define NFS4_dec_open_confirm_sz \
488 (compound_decode_hdr_maxsz + \
489 decode_putfh_maxsz + \
490 decode_open_confirm_maxsz)
491 #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
492 encode_sequence_maxsz + \
493 encode_putfh_maxsz + \
494 encode_open_maxsz + \
495 encode_access_maxsz + \
496 encode_getattr_maxsz)
497 #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
498 decode_sequence_maxsz + \
499 decode_putfh_maxsz + \
500 decode_open_maxsz + \
501 decode_access_maxsz + \
502 decode_getattr_maxsz)
503 #define NFS4_enc_open_downgrade_sz \
504 (compound_encode_hdr_maxsz + \
505 encode_sequence_maxsz + \
506 encode_putfh_maxsz + \
507 encode_layoutreturn_maxsz + \
508 encode_open_downgrade_maxsz)
509 #define NFS4_dec_open_downgrade_sz \
510 (compound_decode_hdr_maxsz + \
511 decode_sequence_maxsz + \
512 decode_putfh_maxsz + \
513 decode_layoutreturn_maxsz + \
514 decode_open_downgrade_maxsz)
515 #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
516 encode_sequence_maxsz + \
517 encode_putfh_maxsz + \
518 encode_layoutreturn_maxsz + \
519 encode_close_maxsz + \
520 encode_getattr_maxsz)
521 #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
522 decode_sequence_maxsz + \
523 decode_putfh_maxsz + \
524 decode_layoutreturn_maxsz + \
525 decode_close_maxsz + \
526 decode_getattr_maxsz)
527 #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
528 encode_sequence_maxsz + \
529 encode_putfh_maxsz + \
530 encode_setattr_maxsz + \
531 encode_getattr_maxsz)
532 #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
533 decode_sequence_maxsz + \
534 decode_putfh_maxsz + \
535 decode_setattr_maxsz + \
536 decode_getattr_maxsz)
537 #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
538 encode_sequence_maxsz + \
539 encode_putfh_maxsz + \
541 #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
542 decode_sequence_maxsz + \
543 decode_putfh_maxsz + \
545 #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
547 #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
549 #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
550 encode_setclientid_maxsz)
551 #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
552 decode_setclientid_maxsz)
553 #define NFS4_enc_setclientid_confirm_sz \
554 (compound_encode_hdr_maxsz + \
555 encode_setclientid_confirm_maxsz)
556 #define NFS4_dec_setclientid_confirm_sz \
557 (compound_decode_hdr_maxsz + \
558 decode_setclientid_confirm_maxsz)
559 #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
560 encode_sequence_maxsz + \
561 encode_putfh_maxsz + \
563 #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
564 decode_sequence_maxsz + \
565 decode_putfh_maxsz + \
567 #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
568 encode_sequence_maxsz + \
569 encode_putfh_maxsz + \
571 #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
572 decode_sequence_maxsz + \
573 decode_putfh_maxsz + \
575 #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
576 encode_sequence_maxsz + \
577 encode_putfh_maxsz + \
579 #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
580 decode_sequence_maxsz + \
581 decode_putfh_maxsz + \
583 #define NFS4_enc_release_lockowner_sz \
584 (compound_encode_hdr_maxsz + \
585 encode_lockowner_maxsz)
586 #define NFS4_dec_release_lockowner_sz \
587 (compound_decode_hdr_maxsz + \
588 decode_lockowner_maxsz)
589 #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
590 encode_sequence_maxsz + \
591 encode_putfh_maxsz + \
592 encode_access_maxsz + \
593 encode_getattr_maxsz)
594 #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
595 decode_sequence_maxsz + \
596 decode_putfh_maxsz + \
597 decode_access_maxsz + \
598 decode_getattr_maxsz)
599 #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
600 encode_sequence_maxsz + \
601 encode_putfh_maxsz + \
602 encode_getattr_maxsz + \
604 #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
605 decode_sequence_maxsz + \
606 decode_putfh_maxsz + \
607 decode_getattr_maxsz + \
609 #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
610 encode_sequence_maxsz + \
611 encode_putfh_maxsz + \
612 encode_lookup_maxsz + \
613 encode_getattr_maxsz + \
615 #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
616 decode_sequence_maxsz + \
617 decode_putfh_maxsz + \
618 decode_lookup_maxsz + \
619 decode_getattr_maxsz + \
621 #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
622 encode_sequence_maxsz + \
623 encode_putrootfh_maxsz + \
624 encode_getattr_maxsz + \
626 #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
627 decode_sequence_maxsz + \
628 decode_putrootfh_maxsz + \
629 decode_getattr_maxsz + \
631 #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
632 encode_sequence_maxsz + \
633 encode_putfh_maxsz + \
635 #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
636 decode_sequence_maxsz + \
637 decode_putfh_maxsz + \
639 #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
640 encode_sequence_maxsz + \
641 encode_putfh_maxsz + \
642 encode_savefh_maxsz + \
643 encode_putfh_maxsz + \
645 #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
646 decode_sequence_maxsz + \
647 decode_putfh_maxsz + \
648 decode_savefh_maxsz + \
649 decode_putfh_maxsz + \
651 #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
652 encode_sequence_maxsz + \
653 encode_putfh_maxsz + \
654 encode_savefh_maxsz + \
655 encode_putfh_maxsz + \
656 encode_link_maxsz + \
657 encode_restorefh_maxsz + \
658 encode_getattr_maxsz)
659 #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
660 decode_sequence_maxsz + \
661 decode_putfh_maxsz + \
662 decode_savefh_maxsz + \
663 decode_putfh_maxsz + \
664 decode_link_maxsz + \
665 decode_restorefh_maxsz + \
666 decode_getattr_maxsz)
667 #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
668 encode_sequence_maxsz + \
669 encode_putfh_maxsz + \
670 encode_symlink_maxsz + \
671 encode_getattr_maxsz + \
673 #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
674 decode_sequence_maxsz + \
675 decode_putfh_maxsz + \
676 decode_symlink_maxsz + \
677 decode_getattr_maxsz + \
679 #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
680 encode_sequence_maxsz + \
681 encode_putfh_maxsz + \
682 encode_create_maxsz + \
683 encode_getfh_maxsz + \
684 encode_getattr_maxsz)
685 #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
686 decode_sequence_maxsz + \
687 decode_putfh_maxsz + \
688 decode_create_maxsz + \
689 decode_getfh_maxsz + \
690 decode_getattr_maxsz)
691 #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
692 encode_sequence_maxsz + \
693 encode_putfh_maxsz + \
694 encode_getattr_maxsz)
695 #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
696 decode_sequence_maxsz + \
697 decode_putfh_maxsz + \
698 decode_getattr_maxsz)
699 #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
700 encode_sequence_maxsz + \
701 encode_putfh_maxsz + \
703 #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
704 decode_sequence_maxsz + \
705 decode_putfh_maxsz + \
707 #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
708 encode_sequence_maxsz + \
709 encode_putfh_maxsz + \
710 encode_getattr_maxsz)
711 #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
712 decode_sequence_maxsz + \
713 decode_putfh_maxsz + \
714 decode_getattr_maxsz)
715 #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
716 encode_sequence_maxsz + \
717 encode_putfh_maxsz + \
718 encode_layoutreturn_maxsz + \
719 encode_delegreturn_maxsz + \
720 encode_getattr_maxsz)
721 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
722 decode_sequence_maxsz + \
723 decode_putfh_maxsz + \
724 decode_layoutreturn_maxsz + \
725 decode_delegreturn_maxsz + \
726 decode_getattr_maxsz)
727 #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
728 encode_sequence_maxsz + \
729 encode_putfh_maxsz + \
731 #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
732 decode_sequence_maxsz + \
733 decode_putfh_maxsz + \
735 #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
736 encode_sequence_maxsz + \
737 encode_putfh_maxsz + \
739 #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
740 decode_sequence_maxsz + \
741 decode_putfh_maxsz + \
743 #define NFS4_enc_fs_locations_sz \
744 (compound_encode_hdr_maxsz + \
745 encode_sequence_maxsz + \
746 encode_putfh_maxsz + \
747 encode_lookup_maxsz + \
748 encode_fs_locations_maxsz + \
750 #define NFS4_dec_fs_locations_sz \
751 (compound_decode_hdr_maxsz + \
752 decode_sequence_maxsz + \
753 decode_putfh_maxsz + \
754 decode_lookup_maxsz + \
755 decode_fs_locations_maxsz + \
757 #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \
758 encode_sequence_maxsz + \
759 encode_putfh_maxsz + \
760 encode_secinfo_maxsz)
761 #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \
762 decode_sequence_maxsz + \
763 decode_putfh_maxsz + \
764 decode_secinfo_maxsz)
765 #define NFS4_enc_fsid_present_sz \
766 (compound_encode_hdr_maxsz + \
767 encode_sequence_maxsz + \
768 encode_putfh_maxsz + \
769 encode_getfh_maxsz + \
771 #define NFS4_dec_fsid_present_sz \
772 (compound_decode_hdr_maxsz + \
773 decode_sequence_maxsz + \
774 decode_putfh_maxsz + \
775 decode_getfh_maxsz + \
777 #if defined(CONFIG_NFS_V4_1)
778 #define NFS4_enc_bind_conn_to_session_sz \
779 (compound_encode_hdr_maxsz + \
780 encode_bind_conn_to_session_maxsz)
781 #define NFS4_dec_bind_conn_to_session_sz \
782 (compound_decode_hdr_maxsz + \
783 decode_bind_conn_to_session_maxsz)
784 #define NFS4_enc_exchange_id_sz \
785 (compound_encode_hdr_maxsz + \
786 encode_exchange_id_maxsz)
787 #define NFS4_dec_exchange_id_sz \
788 (compound_decode_hdr_maxsz + \
789 decode_exchange_id_maxsz)
790 #define NFS4_enc_create_session_sz \
791 (compound_encode_hdr_maxsz + \
792 encode_create_session_maxsz)
793 #define NFS4_dec_create_session_sz \
794 (compound_decode_hdr_maxsz + \
795 decode_create_session_maxsz)
796 #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
797 encode_destroy_session_maxsz)
798 #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
799 decode_destroy_session_maxsz)
800 #define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \
801 encode_destroy_clientid_maxsz)
802 #define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \
803 decode_destroy_clientid_maxsz)
804 #define NFS4_enc_sequence_sz \
805 (compound_decode_hdr_maxsz + \
806 encode_sequence_maxsz)
807 #define NFS4_dec_sequence_sz \
808 (compound_decode_hdr_maxsz + \
809 decode_sequence_maxsz)
810 #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
811 encode_sequence_maxsz + \
812 encode_putrootfh_maxsz + \
814 #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
815 decode_sequence_maxsz + \
816 decode_putrootfh_maxsz + \
818 #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
819 encode_sequence_maxsz + \
820 encode_reclaim_complete_maxsz)
821 #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
822 decode_sequence_maxsz + \
823 decode_reclaim_complete_maxsz)
824 #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \
825 encode_sequence_maxsz +\
826 encode_getdeviceinfo_maxsz)
827 #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \
828 decode_sequence_maxsz + \
829 decode_getdeviceinfo_maxsz)
830 #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \
831 encode_sequence_maxsz + \
832 encode_putfh_maxsz + \
833 encode_layoutget_maxsz)
834 #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \
835 decode_sequence_maxsz + \
836 decode_putfh_maxsz + \
837 decode_layoutget_maxsz)
838 #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \
839 encode_sequence_maxsz +\
840 encode_putfh_maxsz + \
841 encode_layoutcommit_maxsz + \
842 encode_getattr_maxsz)
843 #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \
844 decode_sequence_maxsz + \
845 decode_putfh_maxsz + \
846 decode_layoutcommit_maxsz + \
847 decode_getattr_maxsz)
848 #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \
849 encode_sequence_maxsz + \
850 encode_putfh_maxsz + \
851 encode_layoutreturn_maxsz)
852 #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \
853 decode_sequence_maxsz + \
854 decode_putfh_maxsz + \
855 decode_layoutreturn_maxsz)
856 #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \
857 encode_sequence_maxsz + \
858 encode_putrootfh_maxsz +\
859 encode_secinfo_no_name_maxsz)
860 #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \
861 decode_sequence_maxsz + \
862 decode_putrootfh_maxsz + \
863 decode_secinfo_no_name_maxsz)
864 #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \
865 encode_sequence_maxsz + \
866 encode_test_stateid_maxsz)
867 #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \
868 decode_sequence_maxsz + \
869 decode_test_stateid_maxsz)
870 #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \
871 encode_sequence_maxsz + \
872 encode_free_stateid_maxsz)
873 #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \
874 decode_sequence_maxsz + \
875 decode_free_stateid_maxsz)
877 const u32 nfs41_maxwrite_overhead
= ((RPC_MAX_HEADER_WITH_AUTH
+
878 compound_encode_hdr_maxsz
+
879 encode_sequence_maxsz
+
881 encode_getattr_maxsz
) *
884 const u32 nfs41_maxread_overhead
= ((RPC_MAX_HEADER_WITH_AUTH
+
885 compound_decode_hdr_maxsz
+
886 decode_sequence_maxsz
+
887 decode_putfh_maxsz
) *
890 const u32 nfs41_maxgetdevinfo_overhead
= ((RPC_MAX_REPHEADER_WITH_AUTH
+
891 compound_decode_hdr_maxsz
+
892 decode_sequence_maxsz
) *
894 EXPORT_SYMBOL_GPL(nfs41_maxgetdevinfo_overhead
);
895 #endif /* CONFIG_NFS_V4_1 */
897 static const umode_t nfs_type2fmt
[] = {
904 [NF4SOCK
] = S_IFSOCK
,
910 struct compound_hdr
{
916 uint32_t replen
; /* expected reply words */
920 static __be32
*reserve_space(struct xdr_stream
*xdr
, size_t nbytes
)
922 __be32
*p
= xdr_reserve_space(xdr
, nbytes
);
927 static void encode_opaque_fixed(struct xdr_stream
*xdr
, const void *buf
, size_t len
)
929 WARN_ON_ONCE(xdr_stream_encode_opaque_fixed(xdr
, buf
, len
) < 0);
932 static void encode_string(struct xdr_stream
*xdr
, unsigned int len
, const char *str
)
934 WARN_ON_ONCE(xdr_stream_encode_opaque(xdr
, str
, len
) < 0);
937 static void encode_uint32(struct xdr_stream
*xdr
, u32 n
)
939 WARN_ON_ONCE(xdr_stream_encode_u32(xdr
, n
) < 0);
942 static void encode_uint64(struct xdr_stream
*xdr
, u64 n
)
944 WARN_ON_ONCE(xdr_stream_encode_u64(xdr
, n
) < 0);
947 static void encode_nfs4_seqid(struct xdr_stream
*xdr
,
948 const struct nfs_seqid
*seqid
)
951 encode_uint32(xdr
, seqid
->sequence
->counter
);
953 encode_uint32(xdr
, 0);
956 static void encode_compound_hdr(struct xdr_stream
*xdr
,
957 struct rpc_rqst
*req
,
958 struct compound_hdr
*hdr
)
961 struct rpc_auth
*auth
= req
->rq_cred
->cr_auth
;
963 /* initialize running count of expected bytes in reply.
964 * NOTE: the replied tag SHOULD be the same is the one sent,
965 * but this is not required as a MUST for the server to do so. */
966 hdr
->replen
= RPC_REPHDRSIZE
+ auth
->au_rslack
+ 3 + hdr
->taglen
;
968 WARN_ON_ONCE(hdr
->taglen
> NFS4_MAXTAGLEN
);
969 encode_string(xdr
, hdr
->taglen
, hdr
->tag
);
970 p
= reserve_space(xdr
, 8);
971 *p
++ = cpu_to_be32(hdr
->minorversion
);
973 *p
= cpu_to_be32(hdr
->nops
);
976 static void encode_op_hdr(struct xdr_stream
*xdr
, enum nfs_opnum4 op
,
978 struct compound_hdr
*hdr
)
980 encode_uint32(xdr
, op
);
982 hdr
->replen
+= replen
;
985 static void encode_nops(struct compound_hdr
*hdr
)
987 WARN_ON_ONCE(hdr
->nops
> NFS4_MAX_OPS
);
988 *hdr
->nops_p
= htonl(hdr
->nops
);
991 static void encode_nfs4_stateid(struct xdr_stream
*xdr
, const nfs4_stateid
*stateid
)
993 encode_opaque_fixed(xdr
, stateid
, NFS4_STATEID_SIZE
);
996 static void encode_nfs4_verifier(struct xdr_stream
*xdr
, const nfs4_verifier
*verf
)
998 encode_opaque_fixed(xdr
, verf
->data
, NFS4_VERIFIER_SIZE
);
1001 static void encode_attrs(struct xdr_stream
*xdr
, const struct iattr
*iap
,
1002 const struct nfs4_label
*label
,
1003 const struct nfs_server
*server
,
1004 bool excl_check
, const umode_t
*umask
)
1006 char owner_name
[IDMAP_NAMESZ
];
1007 char owner_group
[IDMAP_NAMESZ
];
1008 int owner_namelen
= 0;
1009 int owner_grouplen
= 0;
1014 uint32_t bmval
[3] = { 0 };
1017 * We reserve enough space to write the entire attribute buffer at once.
1019 if (iap
->ia_valid
& ATTR_SIZE
) {
1020 bmval
[0] |= FATTR4_WORD0_SIZE
;
1023 if (!(server
->attr_bitmask
[2] & FATTR4_WORD2_MODE_UMASK
))
1025 if (iap
->ia_valid
& ATTR_MODE
) {
1027 bmval
[2] |= FATTR4_WORD2_MODE_UMASK
;
1030 bmval
[1] |= FATTR4_WORD1_MODE
;
1034 if (iap
->ia_valid
& ATTR_UID
) {
1035 owner_namelen
= nfs_map_uid_to_name(server
, iap
->ia_uid
, owner_name
, IDMAP_NAMESZ
);
1036 if (owner_namelen
< 0) {
1037 dprintk("nfs: couldn't resolve uid %d to string\n",
1038 from_kuid(&init_user_ns
, iap
->ia_uid
));
1040 strcpy(owner_name
, "nobody");
1041 owner_namelen
= sizeof("nobody") - 1;
1044 bmval
[1] |= FATTR4_WORD1_OWNER
;
1045 len
+= 4 + (XDR_QUADLEN(owner_namelen
) << 2);
1047 if (iap
->ia_valid
& ATTR_GID
) {
1048 owner_grouplen
= nfs_map_gid_to_group(server
, iap
->ia_gid
, owner_group
, IDMAP_NAMESZ
);
1049 if (owner_grouplen
< 0) {
1050 dprintk("nfs: couldn't resolve gid %d to string\n",
1051 from_kgid(&init_user_ns
, iap
->ia_gid
));
1052 strcpy(owner_group
, "nobody");
1053 owner_grouplen
= sizeof("nobody") - 1;
1056 bmval
[1] |= FATTR4_WORD1_OWNER_GROUP
;
1057 len
+= 4 + (XDR_QUADLEN(owner_grouplen
) << 2);
1059 if (iap
->ia_valid
& ATTR_ATIME_SET
) {
1060 bmval
[1] |= FATTR4_WORD1_TIME_ACCESS_SET
;
1062 } else if (iap
->ia_valid
& ATTR_ATIME
) {
1063 bmval
[1] |= FATTR4_WORD1_TIME_ACCESS_SET
;
1066 if (iap
->ia_valid
& ATTR_MTIME_SET
) {
1067 bmval
[1] |= FATTR4_WORD1_TIME_MODIFY_SET
;
1069 } else if (iap
->ia_valid
& ATTR_MTIME
) {
1070 bmval
[1] |= FATTR4_WORD1_TIME_MODIFY_SET
;
1075 const u32
*excl_bmval
= server
->exclcreat_bitmask
;
1076 bmval
[0] &= excl_bmval
[0];
1077 bmval
[1] &= excl_bmval
[1];
1078 bmval
[2] &= excl_bmval
[2];
1080 if (!(excl_bmval
[2] & FATTR4_WORD2_SECURITY_LABEL
))
1085 len
+= 4 + 4 + 4 + (XDR_QUADLEN(label
->len
) << 2);
1086 bmval
[2] |= FATTR4_WORD2_SECURITY_LABEL
;
1091 else if (bmval
[1] != 0)
1096 p
= reserve_space(xdr
, 4 + (bmval_len
<< 2) + 4 + len
);
1098 *p
++ = cpu_to_be32(bmval_len
);
1099 for (i
= 0; i
< bmval_len
; i
++)
1100 *p
++ = cpu_to_be32(bmval
[i
]);
1101 *p
++ = cpu_to_be32(len
);
1103 if (bmval
[0] & FATTR4_WORD0_SIZE
)
1104 p
= xdr_encode_hyper(p
, iap
->ia_size
);
1105 if (bmval
[1] & FATTR4_WORD1_MODE
)
1106 *p
++ = cpu_to_be32(iap
->ia_mode
& S_IALLUGO
);
1107 if (bmval
[1] & FATTR4_WORD1_OWNER
)
1108 p
= xdr_encode_opaque(p
, owner_name
, owner_namelen
);
1109 if (bmval
[1] & FATTR4_WORD1_OWNER_GROUP
)
1110 p
= xdr_encode_opaque(p
, owner_group
, owner_grouplen
);
1111 if (bmval
[1] & FATTR4_WORD1_TIME_ACCESS_SET
) {
1112 if (iap
->ia_valid
& ATTR_ATIME_SET
) {
1113 *p
++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME
);
1114 p
= xdr_encode_hyper(p
, (s64
)iap
->ia_atime
.tv_sec
);
1115 *p
++ = cpu_to_be32(iap
->ia_atime
.tv_nsec
);
1117 *p
++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME
);
1119 if (bmval
[1] & FATTR4_WORD1_TIME_MODIFY_SET
) {
1120 if (iap
->ia_valid
& ATTR_MTIME_SET
) {
1121 *p
++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME
);
1122 p
= xdr_encode_hyper(p
, (s64
)iap
->ia_mtime
.tv_sec
);
1123 *p
++ = cpu_to_be32(iap
->ia_mtime
.tv_nsec
);
1125 *p
++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME
);
1127 if (bmval
[2] & FATTR4_WORD2_SECURITY_LABEL
) {
1128 *p
++ = cpu_to_be32(label
->lfs
);
1129 *p
++ = cpu_to_be32(label
->pi
);
1130 *p
++ = cpu_to_be32(label
->len
);
1131 p
= xdr_encode_opaque_fixed(p
, label
->label
, label
->len
);
1133 if (bmval
[2] & FATTR4_WORD2_MODE_UMASK
) {
1134 *p
++ = cpu_to_be32(iap
->ia_mode
& S_IALLUGO
);
1135 *p
++ = cpu_to_be32(*umask
);
1141 static void encode_access(struct xdr_stream
*xdr
, u32 access
, struct compound_hdr
*hdr
)
1143 encode_op_hdr(xdr
, OP_ACCESS
, decode_access_maxsz
, hdr
);
1144 encode_uint32(xdr
, access
);
1147 static void encode_close(struct xdr_stream
*xdr
, const struct nfs_closeargs
*arg
, struct compound_hdr
*hdr
)
1149 encode_op_hdr(xdr
, OP_CLOSE
, decode_close_maxsz
, hdr
);
1150 encode_nfs4_seqid(xdr
, arg
->seqid
);
1151 encode_nfs4_stateid(xdr
, &arg
->stateid
);
1154 static void encode_commit(struct xdr_stream
*xdr
, const struct nfs_commitargs
*args
, struct compound_hdr
*hdr
)
1158 encode_op_hdr(xdr
, OP_COMMIT
, decode_commit_maxsz
, hdr
);
1159 p
= reserve_space(xdr
, 12);
1160 p
= xdr_encode_hyper(p
, args
->offset
);
1161 *p
= cpu_to_be32(args
->count
);
1164 static void encode_create(struct xdr_stream
*xdr
, const struct nfs4_create_arg
*create
, struct compound_hdr
*hdr
)
1168 encode_op_hdr(xdr
, OP_CREATE
, decode_create_maxsz
, hdr
);
1169 encode_uint32(xdr
, create
->ftype
);
1171 switch (create
->ftype
) {
1173 p
= reserve_space(xdr
, 4);
1174 *p
= cpu_to_be32(create
->u
.symlink
.len
);
1175 xdr_write_pages(xdr
, create
->u
.symlink
.pages
, 0,
1176 create
->u
.symlink
.len
);
1177 xdr
->buf
->flags
|= XDRBUF_WRITE
;
1180 case NF4BLK
: case NF4CHR
:
1181 p
= reserve_space(xdr
, 8);
1182 *p
++ = cpu_to_be32(create
->u
.device
.specdata1
);
1183 *p
= cpu_to_be32(create
->u
.device
.specdata2
);
1190 encode_string(xdr
, create
->name
->len
, create
->name
->name
);
1191 encode_attrs(xdr
, create
->attrs
, create
->label
, create
->server
, false,
1195 static void encode_getattr_one(struct xdr_stream
*xdr
, uint32_t bitmap
, struct compound_hdr
*hdr
)
1199 encode_op_hdr(xdr
, OP_GETATTR
, decode_getattr_maxsz
, hdr
);
1200 p
= reserve_space(xdr
, 8);
1201 *p
++ = cpu_to_be32(1);
1202 *p
= cpu_to_be32(bitmap
);
1205 static void encode_getattr_two(struct xdr_stream
*xdr
, uint32_t bm0
, uint32_t bm1
, struct compound_hdr
*hdr
)
1209 encode_op_hdr(xdr
, OP_GETATTR
, decode_getattr_maxsz
, hdr
);
1210 p
= reserve_space(xdr
, 12);
1211 *p
++ = cpu_to_be32(2);
1212 *p
++ = cpu_to_be32(bm0
);
1213 *p
= cpu_to_be32(bm1
);
1217 encode_getattr_three(struct xdr_stream
*xdr
,
1218 uint32_t bm0
, uint32_t bm1
, uint32_t bm2
,
1219 struct compound_hdr
*hdr
)
1223 encode_op_hdr(xdr
, OP_GETATTR
, decode_getattr_maxsz
, hdr
);
1225 p
= reserve_space(xdr
, 16);
1226 *p
++ = cpu_to_be32(3);
1227 *p
++ = cpu_to_be32(bm0
);
1228 *p
++ = cpu_to_be32(bm1
);
1229 *p
= cpu_to_be32(bm2
);
1231 p
= reserve_space(xdr
, 12);
1232 *p
++ = cpu_to_be32(2);
1233 *p
++ = cpu_to_be32(bm0
);
1234 *p
= cpu_to_be32(bm1
);
1236 p
= reserve_space(xdr
, 8);
1237 *p
++ = cpu_to_be32(1);
1238 *p
= cpu_to_be32(bm0
);
1242 static void encode_getfattr(struct xdr_stream
*xdr
, const u32
* bitmask
, struct compound_hdr
*hdr
)
1244 encode_getattr_three(xdr
, bitmask
[0] & nfs4_fattr_bitmap
[0],
1245 bitmask
[1] & nfs4_fattr_bitmap
[1],
1246 bitmask
[2] & nfs4_fattr_bitmap
[2],
1250 static void encode_getfattr_open(struct xdr_stream
*xdr
, const u32
*bitmask
,
1251 const u32
*open_bitmap
,
1252 struct compound_hdr
*hdr
)
1254 encode_getattr_three(xdr
,
1255 bitmask
[0] & open_bitmap
[0],
1256 bitmask
[1] & open_bitmap
[1],
1257 bitmask
[2] & open_bitmap
[2],
1261 static void encode_fsinfo(struct xdr_stream
*xdr
, const u32
* bitmask
, struct compound_hdr
*hdr
)
1263 encode_getattr_three(xdr
,
1264 bitmask
[0] & nfs4_fsinfo_bitmap
[0],
1265 bitmask
[1] & nfs4_fsinfo_bitmap
[1],
1266 bitmask
[2] & nfs4_fsinfo_bitmap
[2],
1270 static void encode_fs_locations(struct xdr_stream
*xdr
, const u32
* bitmask
, struct compound_hdr
*hdr
)
1272 encode_getattr_two(xdr
, bitmask
[0] & nfs4_fs_locations_bitmap
[0],
1273 bitmask
[1] & nfs4_fs_locations_bitmap
[1], hdr
);
1276 static void encode_getfh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1278 encode_op_hdr(xdr
, OP_GETFH
, decode_getfh_maxsz
, hdr
);
1281 static void encode_link(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1283 encode_op_hdr(xdr
, OP_LINK
, decode_link_maxsz
, hdr
);
1284 encode_string(xdr
, name
->len
, name
->name
);
1287 static inline int nfs4_lock_type(struct file_lock
*fl
, int block
)
1289 if (fl
->fl_type
== F_RDLCK
)
1290 return block
? NFS4_READW_LT
: NFS4_READ_LT
;
1291 return block
? NFS4_WRITEW_LT
: NFS4_WRITE_LT
;
1294 static inline uint64_t nfs4_lock_length(struct file_lock
*fl
)
1296 if (fl
->fl_end
== OFFSET_MAX
)
1297 return ~(uint64_t)0;
1298 return fl
->fl_end
- fl
->fl_start
+ 1;
1301 static void encode_lockowner(struct xdr_stream
*xdr
, const struct nfs_lowner
*lowner
)
1305 p
= reserve_space(xdr
, 32);
1306 p
= xdr_encode_hyper(p
, lowner
->clientid
);
1307 *p
++ = cpu_to_be32(20);
1308 p
= xdr_encode_opaque_fixed(p
, "lock id:", 8);
1309 *p
++ = cpu_to_be32(lowner
->s_dev
);
1310 xdr_encode_hyper(p
, lowner
->id
);
1314 * opcode,type,reclaim,offset,length,new_lock_owner = 32
1315 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
1317 static void encode_lock(struct xdr_stream
*xdr
, const struct nfs_lock_args
*args
, struct compound_hdr
*hdr
)
1321 encode_op_hdr(xdr
, OP_LOCK
, decode_lock_maxsz
, hdr
);
1322 p
= reserve_space(xdr
, 28);
1323 *p
++ = cpu_to_be32(nfs4_lock_type(args
->fl
, args
->block
));
1324 *p
++ = cpu_to_be32(args
->reclaim
);
1325 p
= xdr_encode_hyper(p
, args
->fl
->fl_start
);
1326 p
= xdr_encode_hyper(p
, nfs4_lock_length(args
->fl
));
1327 *p
= cpu_to_be32(args
->new_lock_owner
);
1328 if (args
->new_lock_owner
){
1329 encode_nfs4_seqid(xdr
, args
->open_seqid
);
1330 encode_nfs4_stateid(xdr
, &args
->open_stateid
);
1331 encode_nfs4_seqid(xdr
, args
->lock_seqid
);
1332 encode_lockowner(xdr
, &args
->lock_owner
);
1335 encode_nfs4_stateid(xdr
, &args
->lock_stateid
);
1336 encode_nfs4_seqid(xdr
, args
->lock_seqid
);
1340 static void encode_lockt(struct xdr_stream
*xdr
, const struct nfs_lockt_args
*args
, struct compound_hdr
*hdr
)
1344 encode_op_hdr(xdr
, OP_LOCKT
, decode_lockt_maxsz
, hdr
);
1345 p
= reserve_space(xdr
, 20);
1346 *p
++ = cpu_to_be32(nfs4_lock_type(args
->fl
, 0));
1347 p
= xdr_encode_hyper(p
, args
->fl
->fl_start
);
1348 p
= xdr_encode_hyper(p
, nfs4_lock_length(args
->fl
));
1349 encode_lockowner(xdr
, &args
->lock_owner
);
1352 static void encode_locku(struct xdr_stream
*xdr
, const struct nfs_locku_args
*args
, struct compound_hdr
*hdr
)
1356 encode_op_hdr(xdr
, OP_LOCKU
, decode_locku_maxsz
, hdr
);
1357 encode_uint32(xdr
, nfs4_lock_type(args
->fl
, 0));
1358 encode_nfs4_seqid(xdr
, args
->seqid
);
1359 encode_nfs4_stateid(xdr
, &args
->stateid
);
1360 p
= reserve_space(xdr
, 16);
1361 p
= xdr_encode_hyper(p
, args
->fl
->fl_start
);
1362 xdr_encode_hyper(p
, nfs4_lock_length(args
->fl
));
1365 static void encode_release_lockowner(struct xdr_stream
*xdr
, const struct nfs_lowner
*lowner
, struct compound_hdr
*hdr
)
1367 encode_op_hdr(xdr
, OP_RELEASE_LOCKOWNER
, decode_release_lockowner_maxsz
, hdr
);
1368 encode_lockowner(xdr
, lowner
);
1371 static void encode_lookup(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1373 encode_op_hdr(xdr
, OP_LOOKUP
, decode_lookup_maxsz
, hdr
);
1374 encode_string(xdr
, name
->len
, name
->name
);
1377 static void encode_share_access(struct xdr_stream
*xdr
, u32 share_access
)
1381 p
= reserve_space(xdr
, 8);
1382 *p
++ = cpu_to_be32(share_access
);
1383 *p
= cpu_to_be32(0); /* for linux, share_deny = 0 always */
1386 static inline void encode_openhdr(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
1390 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1393 encode_nfs4_seqid(xdr
, arg
->seqid
);
1394 encode_share_access(xdr
, arg
->share_access
);
1395 p
= reserve_space(xdr
, 36);
1396 p
= xdr_encode_hyper(p
, arg
->clientid
);
1397 *p
++ = cpu_to_be32(24);
1398 p
= xdr_encode_opaque_fixed(p
, "open id:", 8);
1399 *p
++ = cpu_to_be32(arg
->server
->s_dev
);
1400 *p
++ = cpu_to_be32(arg
->id
.uniquifier
);
1401 xdr_encode_hyper(p
, arg
->id
.create_time
);
1404 static inline void encode_createmode(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
1408 p
= reserve_space(xdr
, 4);
1409 switch(arg
->createmode
) {
1410 case NFS4_CREATE_UNCHECKED
:
1411 *p
= cpu_to_be32(NFS4_CREATE_UNCHECKED
);
1412 encode_attrs(xdr
, arg
->u
.attrs
, arg
->label
, arg
->server
, false,
1415 case NFS4_CREATE_GUARDED
:
1416 *p
= cpu_to_be32(NFS4_CREATE_GUARDED
);
1417 encode_attrs(xdr
, arg
->u
.attrs
, arg
->label
, arg
->server
, false,
1420 case NFS4_CREATE_EXCLUSIVE
:
1421 *p
= cpu_to_be32(NFS4_CREATE_EXCLUSIVE
);
1422 encode_nfs4_verifier(xdr
, &arg
->u
.verifier
);
1424 case NFS4_CREATE_EXCLUSIVE4_1
:
1425 *p
= cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1
);
1426 encode_nfs4_verifier(xdr
, &arg
->u
.verifier
);
1427 encode_attrs(xdr
, arg
->u
.attrs
, arg
->label
, arg
->server
, true,
1432 static void encode_opentype(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
1436 p
= reserve_space(xdr
, 4);
1437 switch (arg
->open_flags
& O_CREAT
) {
1439 *p
= cpu_to_be32(NFS4_OPEN_NOCREATE
);
1442 *p
= cpu_to_be32(NFS4_OPEN_CREATE
);
1443 encode_createmode(xdr
, arg
);
1447 static inline void encode_delegation_type(struct xdr_stream
*xdr
, fmode_t delegation_type
)
1451 p
= reserve_space(xdr
, 4);
1452 switch (delegation_type
) {
1454 *p
= cpu_to_be32(NFS4_OPEN_DELEGATE_NONE
);
1457 *p
= cpu_to_be32(NFS4_OPEN_DELEGATE_READ
);
1459 case FMODE_WRITE
|FMODE_READ
:
1460 *p
= cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE
);
1467 static inline void encode_claim_null(struct xdr_stream
*xdr
, const struct qstr
*name
)
1471 p
= reserve_space(xdr
, 4);
1472 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_NULL
);
1473 encode_string(xdr
, name
->len
, name
->name
);
1476 static inline void encode_claim_previous(struct xdr_stream
*xdr
, fmode_t type
)
1480 p
= reserve_space(xdr
, 4);
1481 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS
);
1482 encode_delegation_type(xdr
, type
);
1485 static inline void encode_claim_delegate_cur(struct xdr_stream
*xdr
, const struct qstr
*name
, const nfs4_stateid
*stateid
)
1489 p
= reserve_space(xdr
, 4);
1490 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR
);
1491 encode_nfs4_stateid(xdr
, stateid
);
1492 encode_string(xdr
, name
->len
, name
->name
);
1495 static inline void encode_claim_fh(struct xdr_stream
*xdr
)
1499 p
= reserve_space(xdr
, 4);
1500 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_FH
);
1503 static inline void encode_claim_delegate_cur_fh(struct xdr_stream
*xdr
, const nfs4_stateid
*stateid
)
1507 p
= reserve_space(xdr
, 4);
1508 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_DELEG_CUR_FH
);
1509 encode_nfs4_stateid(xdr
, stateid
);
1512 static void encode_open(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
, struct compound_hdr
*hdr
)
1514 encode_op_hdr(xdr
, OP_OPEN
, decode_open_maxsz
, hdr
);
1515 encode_openhdr(xdr
, arg
);
1516 encode_opentype(xdr
, arg
);
1517 switch (arg
->claim
) {
1518 case NFS4_OPEN_CLAIM_NULL
:
1519 encode_claim_null(xdr
, arg
->name
);
1521 case NFS4_OPEN_CLAIM_PREVIOUS
:
1522 encode_claim_previous(xdr
, arg
->u
.delegation_type
);
1524 case NFS4_OPEN_CLAIM_DELEGATE_CUR
:
1525 encode_claim_delegate_cur(xdr
, arg
->name
, &arg
->u
.delegation
);
1527 case NFS4_OPEN_CLAIM_FH
:
1528 encode_claim_fh(xdr
);
1530 case NFS4_OPEN_CLAIM_DELEG_CUR_FH
:
1531 encode_claim_delegate_cur_fh(xdr
, &arg
->u
.delegation
);
1538 static void encode_open_confirm(struct xdr_stream
*xdr
, const struct nfs_open_confirmargs
*arg
, struct compound_hdr
*hdr
)
1540 encode_op_hdr(xdr
, OP_OPEN_CONFIRM
, decode_open_confirm_maxsz
, hdr
);
1541 encode_nfs4_stateid(xdr
, arg
->stateid
);
1542 encode_nfs4_seqid(xdr
, arg
->seqid
);
1545 static void encode_open_downgrade(struct xdr_stream
*xdr
, const struct nfs_closeargs
*arg
, struct compound_hdr
*hdr
)
1547 encode_op_hdr(xdr
, OP_OPEN_DOWNGRADE
, decode_open_downgrade_maxsz
, hdr
);
1548 encode_nfs4_stateid(xdr
, &arg
->stateid
);
1549 encode_nfs4_seqid(xdr
, arg
->seqid
);
1550 encode_share_access(xdr
, arg
->share_access
);
1554 encode_putfh(struct xdr_stream
*xdr
, const struct nfs_fh
*fh
, struct compound_hdr
*hdr
)
1556 encode_op_hdr(xdr
, OP_PUTFH
, decode_putfh_maxsz
, hdr
);
1557 encode_string(xdr
, fh
->size
, fh
->data
);
1560 static void encode_putrootfh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1562 encode_op_hdr(xdr
, OP_PUTROOTFH
, decode_putrootfh_maxsz
, hdr
);
1565 static void encode_read(struct xdr_stream
*xdr
, const struct nfs_pgio_args
*args
,
1566 struct compound_hdr
*hdr
)
1570 encode_op_hdr(xdr
, OP_READ
, decode_read_maxsz
, hdr
);
1571 encode_nfs4_stateid(xdr
, &args
->stateid
);
1573 p
= reserve_space(xdr
, 12);
1574 p
= xdr_encode_hyper(p
, args
->offset
);
1575 *p
= cpu_to_be32(args
->count
);
1578 static void encode_readdir(struct xdr_stream
*xdr
, const struct nfs4_readdir_arg
*readdir
, struct rpc_rqst
*req
, struct compound_hdr
*hdr
)
1580 uint32_t attrs
[3] = {
1581 FATTR4_WORD0_RDATTR_ERROR
,
1582 FATTR4_WORD1_MOUNTED_ON_FILEID
,
1584 uint32_t dircount
= readdir
->count
>> 1;
1586 uint32_t attrlen
= 0;
1589 if (readdir
->plus
) {
1590 attrs
[0] |= FATTR4_WORD0_TYPE
|FATTR4_WORD0_CHANGE
|FATTR4_WORD0_SIZE
|
1591 FATTR4_WORD0_FSID
|FATTR4_WORD0_FILEHANDLE
|FATTR4_WORD0_FILEID
;
1592 attrs
[1] |= FATTR4_WORD1_MODE
|FATTR4_WORD1_NUMLINKS
|FATTR4_WORD1_OWNER
|
1593 FATTR4_WORD1_OWNER_GROUP
|FATTR4_WORD1_RAWDEV
|
1594 FATTR4_WORD1_SPACE_USED
|FATTR4_WORD1_TIME_ACCESS
|
1595 FATTR4_WORD1_TIME_METADATA
|FATTR4_WORD1_TIME_MODIFY
;
1596 attrs
[2] |= FATTR4_WORD2_SECURITY_LABEL
;
1599 /* Use mounted_on_fileid only if the server supports it */
1600 if (!(readdir
->bitmask
[1] & FATTR4_WORD1_MOUNTED_ON_FILEID
))
1601 attrs
[0] |= FATTR4_WORD0_FILEID
;
1602 for (i
= 0; i
< ARRAY_SIZE(attrs
); i
++) {
1603 attrs
[i
] &= readdir
->bitmask
[i
];
1608 encode_op_hdr(xdr
, OP_READDIR
, decode_readdir_maxsz
, hdr
);
1609 encode_uint64(xdr
, readdir
->cookie
);
1610 encode_nfs4_verifier(xdr
, &readdir
->verifier
);
1611 p
= reserve_space(xdr
, 12 + (attrlen
<< 2));
1612 *p
++ = cpu_to_be32(dircount
);
1613 *p
++ = cpu_to_be32(readdir
->count
);
1614 *p
++ = cpu_to_be32(attrlen
);
1615 for (i
= 0; i
< attrlen
; i
++)
1616 *p
++ = cpu_to_be32(attrs
[i
]);
1617 memcpy(verf
, readdir
->verifier
.data
, sizeof(verf
));
1619 dprintk("%s: cookie = %llu, verifier = %08x:%08x, bitmap = %08x:%08x:%08x\n",
1621 (unsigned long long)readdir
->cookie
,
1623 attrs
[0] & readdir
->bitmask
[0],
1624 attrs
[1] & readdir
->bitmask
[1],
1625 attrs
[2] & readdir
->bitmask
[2]);
1628 static void encode_readlink(struct xdr_stream
*xdr
, const struct nfs4_readlink
*readlink
, struct rpc_rqst
*req
, struct compound_hdr
*hdr
)
1630 encode_op_hdr(xdr
, OP_READLINK
, decode_readlink_maxsz
, hdr
);
1633 static void encode_remove(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1635 encode_op_hdr(xdr
, OP_REMOVE
, decode_remove_maxsz
, hdr
);
1636 encode_string(xdr
, name
->len
, name
->name
);
1639 static void encode_rename(struct xdr_stream
*xdr
, const struct qstr
*oldname
, const struct qstr
*newname
, struct compound_hdr
*hdr
)
1641 encode_op_hdr(xdr
, OP_RENAME
, decode_rename_maxsz
, hdr
);
1642 encode_string(xdr
, oldname
->len
, oldname
->name
);
1643 encode_string(xdr
, newname
->len
, newname
->name
);
1646 static void encode_renew(struct xdr_stream
*xdr
, clientid4 clid
,
1647 struct compound_hdr
*hdr
)
1649 encode_op_hdr(xdr
, OP_RENEW
, decode_renew_maxsz
, hdr
);
1650 encode_uint64(xdr
, clid
);
1654 encode_restorefh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1656 encode_op_hdr(xdr
, OP_RESTOREFH
, decode_restorefh_maxsz
, hdr
);
1660 encode_setacl(struct xdr_stream
*xdr
, struct nfs_setaclargs
*arg
, struct compound_hdr
*hdr
)
1664 encode_op_hdr(xdr
, OP_SETATTR
, decode_setacl_maxsz
, hdr
);
1665 encode_nfs4_stateid(xdr
, &zero_stateid
);
1666 p
= reserve_space(xdr
, 2*4);
1667 *p
++ = cpu_to_be32(1);
1668 *p
= cpu_to_be32(FATTR4_WORD0_ACL
);
1669 p
= reserve_space(xdr
, 4);
1670 *p
= cpu_to_be32(arg
->acl_len
);
1671 xdr_write_pages(xdr
, arg
->acl_pages
, 0, arg
->acl_len
);
1675 encode_savefh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1677 encode_op_hdr(xdr
, OP_SAVEFH
, decode_savefh_maxsz
, hdr
);
1680 static void encode_setattr(struct xdr_stream
*xdr
, const struct nfs_setattrargs
*arg
, const struct nfs_server
*server
, struct compound_hdr
*hdr
)
1682 encode_op_hdr(xdr
, OP_SETATTR
, decode_setattr_maxsz
, hdr
);
1683 encode_nfs4_stateid(xdr
, &arg
->stateid
);
1684 encode_attrs(xdr
, arg
->iap
, arg
->label
, server
, false, NULL
);
1687 static void encode_setclientid(struct xdr_stream
*xdr
, const struct nfs4_setclientid
*setclientid
, struct compound_hdr
*hdr
)
1691 encode_op_hdr(xdr
, OP_SETCLIENTID
, decode_setclientid_maxsz
, hdr
);
1692 encode_nfs4_verifier(xdr
, setclientid
->sc_verifier
);
1694 encode_string(xdr
, strlen(setclientid
->sc_clnt
->cl_owner_id
),
1695 setclientid
->sc_clnt
->cl_owner_id
);
1696 p
= reserve_space(xdr
, 4);
1697 *p
= cpu_to_be32(setclientid
->sc_prog
);
1698 encode_string(xdr
, setclientid
->sc_netid_len
, setclientid
->sc_netid
);
1699 encode_string(xdr
, setclientid
->sc_uaddr_len
, setclientid
->sc_uaddr
);
1700 p
= reserve_space(xdr
, 4);
1701 *p
= cpu_to_be32(setclientid
->sc_clnt
->cl_cb_ident
);
1704 static void encode_setclientid_confirm(struct xdr_stream
*xdr
, const struct nfs4_setclientid_res
*arg
, struct compound_hdr
*hdr
)
1706 encode_op_hdr(xdr
, OP_SETCLIENTID_CONFIRM
,
1707 decode_setclientid_confirm_maxsz
, hdr
);
1708 encode_uint64(xdr
, arg
->clientid
);
1709 encode_nfs4_verifier(xdr
, &arg
->confirm
);
1712 static void encode_write(struct xdr_stream
*xdr
, const struct nfs_pgio_args
*args
,
1713 struct compound_hdr
*hdr
)
1717 encode_op_hdr(xdr
, OP_WRITE
, decode_write_maxsz
, hdr
);
1718 encode_nfs4_stateid(xdr
, &args
->stateid
);
1720 p
= reserve_space(xdr
, 16);
1721 p
= xdr_encode_hyper(p
, args
->offset
);
1722 *p
++ = cpu_to_be32(args
->stable
);
1723 *p
= cpu_to_be32(args
->count
);
1725 xdr_write_pages(xdr
, args
->pages
, args
->pgbase
, args
->count
);
1728 static void encode_delegreturn(struct xdr_stream
*xdr
, const nfs4_stateid
*stateid
, struct compound_hdr
*hdr
)
1730 encode_op_hdr(xdr
, OP_DELEGRETURN
, decode_delegreturn_maxsz
, hdr
);
1731 encode_nfs4_stateid(xdr
, stateid
);
1734 static void encode_secinfo(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1736 encode_op_hdr(xdr
, OP_SECINFO
, decode_secinfo_maxsz
, hdr
);
1737 encode_string(xdr
, name
->len
, name
->name
);
1740 #if defined(CONFIG_NFS_V4_1)
1741 /* NFSv4.1 operations */
1742 static void encode_bind_conn_to_session(struct xdr_stream
*xdr
,
1743 struct nfs41_bind_conn_to_session_args
*args
,
1744 struct compound_hdr
*hdr
)
1748 encode_op_hdr(xdr
, OP_BIND_CONN_TO_SESSION
,
1749 decode_bind_conn_to_session_maxsz
, hdr
);
1750 encode_opaque_fixed(xdr
, args
->sessionid
.data
, NFS4_MAX_SESSIONID_LEN
);
1751 p
= xdr_reserve_space(xdr
, 8);
1752 *p
++ = cpu_to_be32(args
->dir
);
1753 *p
= (args
->use_conn_in_rdma_mode
) ? cpu_to_be32(1) : cpu_to_be32(0);
1756 static void encode_op_map(struct xdr_stream
*xdr
, struct nfs4_op_map
*op_map
)
1759 encode_uint32(xdr
, NFS4_OP_MAP_NUM_WORDS
);
1760 for (i
= 0; i
< NFS4_OP_MAP_NUM_WORDS
; i
++)
1761 encode_uint32(xdr
, op_map
->u
.words
[i
]);
1764 static void encode_exchange_id(struct xdr_stream
*xdr
,
1765 struct nfs41_exchange_id_args
*args
,
1766 struct compound_hdr
*hdr
)
1769 char impl_name
[IMPL_NAME_LIMIT
];
1772 encode_op_hdr(xdr
, OP_EXCHANGE_ID
, decode_exchange_id_maxsz
, hdr
);
1773 encode_nfs4_verifier(xdr
, args
->verifier
);
1775 encode_string(xdr
, strlen(args
->client
->cl_owner_id
),
1776 args
->client
->cl_owner_id
);
1778 encode_uint32(xdr
, args
->flags
);
1779 encode_uint32(xdr
, args
->state_protect
.how
);
1781 switch (args
->state_protect
.how
) {
1785 encode_op_map(xdr
, &args
->state_protect
.enforce
);
1786 encode_op_map(xdr
, &args
->state_protect
.allow
);
1793 if (send_implementation_id
&&
1794 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
) > 1 &&
1795 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
)
1796 <= sizeof(impl_name
) + 1)
1797 len
= snprintf(impl_name
, sizeof(impl_name
), "%s %s %s %s",
1798 utsname()->sysname
, utsname()->release
,
1799 utsname()->version
, utsname()->machine
);
1802 encode_uint32(xdr
, 1); /* implementation id array length=1 */
1805 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
) - 1,
1806 CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
);
1807 encode_string(xdr
, len
, impl_name
);
1808 /* just send zeros for nii_date - the date is in nii_name */
1809 p
= reserve_space(xdr
, 12);
1810 p
= xdr_encode_hyper(p
, 0);
1811 *p
= cpu_to_be32(0);
1813 encode_uint32(xdr
, 0); /* implementation id array length=0 */
1816 static void encode_create_session(struct xdr_stream
*xdr
,
1817 struct nfs41_create_session_args
*args
,
1818 struct compound_hdr
*hdr
)
1821 struct nfs_client
*clp
= args
->client
;
1822 struct rpc_clnt
*clnt
= clp
->cl_rpcclient
;
1823 struct nfs_net
*nn
= net_generic(clp
->cl_net
, nfs_net_id
);
1824 u32 max_resp_sz_cached
;
1827 * Assumes OPEN is the biggest non-idempotent compound.
1828 * 2 is the verifier.
1830 max_resp_sz_cached
= (NFS4_dec_open_sz
+ RPC_REPHDRSIZE
+
1831 RPC_MAX_AUTH_SIZE
+ 2) * XDR_UNIT
;
1833 encode_op_hdr(xdr
, OP_CREATE_SESSION
, decode_create_session_maxsz
, hdr
);
1834 p
= reserve_space(xdr
, 16 + 2*28 + 20 + clnt
->cl_nodelen
+ 12);
1835 p
= xdr_encode_hyper(p
, args
->clientid
);
1836 *p
++ = cpu_to_be32(args
->seqid
); /*Sequence id */
1837 *p
++ = cpu_to_be32(args
->flags
); /*flags */
1840 *p
++ = cpu_to_be32(0); /* header padding size */
1841 *p
++ = cpu_to_be32(args
->fc_attrs
.max_rqst_sz
); /* max req size */
1842 *p
++ = cpu_to_be32(args
->fc_attrs
.max_resp_sz
); /* max resp size */
1843 *p
++ = cpu_to_be32(max_resp_sz_cached
); /* Max resp sz cached */
1844 *p
++ = cpu_to_be32(args
->fc_attrs
.max_ops
); /* max operations */
1845 *p
++ = cpu_to_be32(args
->fc_attrs
.max_reqs
); /* max requests */
1846 *p
++ = cpu_to_be32(0); /* rdmachannel_attrs */
1849 *p
++ = cpu_to_be32(0); /* header padding size */
1850 *p
++ = cpu_to_be32(args
->bc_attrs
.max_rqst_sz
); /* max req size */
1851 *p
++ = cpu_to_be32(args
->bc_attrs
.max_resp_sz
); /* max resp size */
1852 *p
++ = cpu_to_be32(args
->bc_attrs
.max_resp_sz_cached
); /* Max resp sz cached */
1853 *p
++ = cpu_to_be32(args
->bc_attrs
.max_ops
); /* max operations */
1854 *p
++ = cpu_to_be32(args
->bc_attrs
.max_reqs
); /* max requests */
1855 *p
++ = cpu_to_be32(0); /* rdmachannel_attrs */
1857 *p
++ = cpu_to_be32(args
->cb_program
); /* cb_program */
1858 *p
++ = cpu_to_be32(1);
1859 *p
++ = cpu_to_be32(RPC_AUTH_UNIX
); /* auth_sys */
1861 /* authsys_parms rfc1831 */
1862 *p
++ = cpu_to_be32(ktime_to_ns(nn
->boot_time
)); /* stamp */
1863 p
= xdr_encode_array(p
, clnt
->cl_nodename
, clnt
->cl_nodelen
);
1864 *p
++ = cpu_to_be32(0); /* UID */
1865 *p
++ = cpu_to_be32(0); /* GID */
1866 *p
= cpu_to_be32(0); /* No more gids */
1869 static void encode_destroy_session(struct xdr_stream
*xdr
,
1870 struct nfs4_session
*session
,
1871 struct compound_hdr
*hdr
)
1873 encode_op_hdr(xdr
, OP_DESTROY_SESSION
, decode_destroy_session_maxsz
, hdr
);
1874 encode_opaque_fixed(xdr
, session
->sess_id
.data
, NFS4_MAX_SESSIONID_LEN
);
1877 static void encode_destroy_clientid(struct xdr_stream
*xdr
,
1879 struct compound_hdr
*hdr
)
1881 encode_op_hdr(xdr
, OP_DESTROY_CLIENTID
, decode_destroy_clientid_maxsz
, hdr
);
1882 encode_uint64(xdr
, clientid
);
1885 static void encode_reclaim_complete(struct xdr_stream
*xdr
,
1886 struct nfs41_reclaim_complete_args
*args
,
1887 struct compound_hdr
*hdr
)
1889 encode_op_hdr(xdr
, OP_RECLAIM_COMPLETE
, decode_reclaim_complete_maxsz
, hdr
);
1890 encode_uint32(xdr
, args
->one_fs
);
1892 #endif /* CONFIG_NFS_V4_1 */
1894 static void encode_sequence(struct xdr_stream
*xdr
,
1895 const struct nfs4_sequence_args
*args
,
1896 struct compound_hdr
*hdr
)
1898 #if defined(CONFIG_NFS_V4_1)
1899 struct nfs4_session
*session
;
1900 struct nfs4_slot_table
*tp
;
1901 struct nfs4_slot
*slot
= args
->sa_slot
;
1905 session
= tp
->session
;
1909 encode_op_hdr(xdr
, OP_SEQUENCE
, decode_sequence_maxsz
, hdr
);
1912 * Sessionid + seqid + slotid + max slotid + cache_this
1914 dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
1915 "max_slotid=%d cache_this=%d\n",
1917 ((u32
*)session
->sess_id
.data
)[0],
1918 ((u32
*)session
->sess_id
.data
)[1],
1919 ((u32
*)session
->sess_id
.data
)[2],
1920 ((u32
*)session
->sess_id
.data
)[3],
1921 slot
->seq_nr
, slot
->slot_nr
,
1922 tp
->highest_used_slotid
, args
->sa_cache_this
);
1923 p
= reserve_space(xdr
, NFS4_MAX_SESSIONID_LEN
+ 16);
1924 p
= xdr_encode_opaque_fixed(p
, session
->sess_id
.data
, NFS4_MAX_SESSIONID_LEN
);
1925 *p
++ = cpu_to_be32(slot
->seq_nr
);
1926 *p
++ = cpu_to_be32(slot
->slot_nr
);
1927 *p
++ = cpu_to_be32(tp
->highest_used_slotid
);
1928 *p
= cpu_to_be32(args
->sa_cache_this
);
1929 #endif /* CONFIG_NFS_V4_1 */
1932 #ifdef CONFIG_NFS_V4_1
1934 encode_getdeviceinfo(struct xdr_stream
*xdr
,
1935 const struct nfs4_getdeviceinfo_args
*args
,
1936 struct compound_hdr
*hdr
)
1940 encode_op_hdr(xdr
, OP_GETDEVICEINFO
, decode_getdeviceinfo_maxsz
, hdr
);
1941 p
= reserve_space(xdr
, NFS4_DEVICEID4_SIZE
+ 4 + 4);
1942 p
= xdr_encode_opaque_fixed(p
, args
->pdev
->dev_id
.data
,
1943 NFS4_DEVICEID4_SIZE
);
1944 *p
++ = cpu_to_be32(args
->pdev
->layout_type
);
1945 *p
++ = cpu_to_be32(args
->pdev
->maxcount
); /* gdia_maxcount */
1947 p
= reserve_space(xdr
, 4 + 4);
1948 *p
++ = cpu_to_be32(1); /* bitmap length */
1949 *p
++ = cpu_to_be32(args
->notify_types
);
1953 encode_layoutget(struct xdr_stream
*xdr
,
1954 const struct nfs4_layoutget_args
*args
,
1955 struct compound_hdr
*hdr
)
1959 encode_op_hdr(xdr
, OP_LAYOUTGET
, decode_layoutget_maxsz
, hdr
);
1960 p
= reserve_space(xdr
, 36);
1961 *p
++ = cpu_to_be32(0); /* Signal layout available */
1962 *p
++ = cpu_to_be32(args
->type
);
1963 *p
++ = cpu_to_be32(args
->range
.iomode
);
1964 p
= xdr_encode_hyper(p
, args
->range
.offset
);
1965 p
= xdr_encode_hyper(p
, args
->range
.length
);
1966 p
= xdr_encode_hyper(p
, args
->minlength
);
1967 encode_nfs4_stateid(xdr
, &args
->stateid
);
1968 encode_uint32(xdr
, args
->maxcount
);
1970 dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n",
1974 (unsigned long)args
->range
.offset
,
1975 (unsigned long)args
->range
.length
,
1980 encode_layoutcommit(struct xdr_stream
*xdr
,
1981 struct inode
*inode
,
1982 struct nfs4_layoutcommit_args
*args
,
1983 struct compound_hdr
*hdr
)
1987 dprintk("%s: lbw: %llu type: %d\n", __func__
, args
->lastbytewritten
,
1988 NFS_SERVER(args
->inode
)->pnfs_curr_ld
->id
);
1990 encode_op_hdr(xdr
, OP_LAYOUTCOMMIT
, decode_layoutcommit_maxsz
, hdr
);
1991 p
= reserve_space(xdr
, 20);
1992 /* Only whole file layouts */
1993 p
= xdr_encode_hyper(p
, 0); /* offset */
1994 p
= xdr_encode_hyper(p
, args
->lastbytewritten
+ 1); /* length */
1995 *p
= cpu_to_be32(0); /* reclaim */
1996 encode_nfs4_stateid(xdr
, &args
->stateid
);
1997 if (args
->lastbytewritten
!= U64_MAX
) {
1998 p
= reserve_space(xdr
, 20);
1999 *p
++ = cpu_to_be32(1); /* newoffset = TRUE */
2000 p
= xdr_encode_hyper(p
, args
->lastbytewritten
);
2002 p
= reserve_space(xdr
, 12);
2003 *p
++ = cpu_to_be32(0); /* newoffset = FALSE */
2005 *p
++ = cpu_to_be32(0); /* Never send time_modify_changed */
2006 *p
++ = cpu_to_be32(NFS_SERVER(args
->inode
)->pnfs_curr_ld
->id
);/* type */
2008 if (NFS_SERVER(inode
)->pnfs_curr_ld
->encode_layoutcommit
) {
2009 NFS_SERVER(inode
)->pnfs_curr_ld
->encode_layoutcommit(
2010 NFS_I(inode
)->layout
, xdr
, args
);
2012 encode_uint32(xdr
, args
->layoutupdate_len
);
2013 if (args
->layoutupdate_pages
) {
2014 xdr_write_pages(xdr
, args
->layoutupdate_pages
, 0,
2015 args
->layoutupdate_len
);
2023 encode_layoutreturn(struct xdr_stream
*xdr
,
2024 const struct nfs4_layoutreturn_args
*args
,
2025 struct compound_hdr
*hdr
)
2027 const struct pnfs_layoutdriver_type
*lr_ops
= NFS_SERVER(args
->inode
)->pnfs_curr_ld
;
2030 encode_op_hdr(xdr
, OP_LAYOUTRETURN
, decode_layoutreturn_maxsz
, hdr
);
2031 p
= reserve_space(xdr
, 16);
2032 *p
++ = cpu_to_be32(0); /* reclaim. always 0 for now */
2033 *p
++ = cpu_to_be32(args
->layout_type
);
2034 *p
++ = cpu_to_be32(args
->range
.iomode
);
2035 *p
= cpu_to_be32(RETURN_FILE
);
2036 p
= reserve_space(xdr
, 16);
2037 p
= xdr_encode_hyper(p
, args
->range
.offset
);
2038 p
= xdr_encode_hyper(p
, args
->range
.length
);
2039 spin_lock(&args
->inode
->i_lock
);
2040 encode_nfs4_stateid(xdr
, &args
->stateid
);
2041 spin_unlock(&args
->inode
->i_lock
);
2042 if (args
->ld_private
->ops
&& args
->ld_private
->ops
->encode
)
2043 args
->ld_private
->ops
->encode(xdr
, args
, args
->ld_private
);
2044 else if (lr_ops
->encode_layoutreturn
)
2045 lr_ops
->encode_layoutreturn(xdr
, args
);
2047 encode_uint32(xdr
, 0);
2051 encode_secinfo_no_name(struct xdr_stream
*xdr
,
2052 const struct nfs41_secinfo_no_name_args
*args
,
2053 struct compound_hdr
*hdr
)
2055 encode_op_hdr(xdr
, OP_SECINFO_NO_NAME
, decode_secinfo_no_name_maxsz
, hdr
);
2056 encode_uint32(xdr
, args
->style
);
2060 static void encode_test_stateid(struct xdr_stream
*xdr
,
2061 struct nfs41_test_stateid_args
*args
,
2062 struct compound_hdr
*hdr
)
2064 encode_op_hdr(xdr
, OP_TEST_STATEID
, decode_test_stateid_maxsz
, hdr
);
2065 encode_uint32(xdr
, 1);
2066 encode_nfs4_stateid(xdr
, args
->stateid
);
2069 static void encode_free_stateid(struct xdr_stream
*xdr
,
2070 struct nfs41_free_stateid_args
*args
,
2071 struct compound_hdr
*hdr
)
2073 encode_op_hdr(xdr
, OP_FREE_STATEID
, decode_free_stateid_maxsz
, hdr
);
2074 encode_nfs4_stateid(xdr
, &args
->stateid
);
2078 encode_layoutreturn(struct xdr_stream
*xdr
,
2079 const struct nfs4_layoutreturn_args
*args
,
2080 struct compound_hdr
*hdr
)
2083 #endif /* CONFIG_NFS_V4_1 */
2086 * END OF "GENERIC" ENCODE ROUTINES.
2089 static u32
nfs4_xdr_minorversion(const struct nfs4_sequence_args
*args
)
2091 #if defined(CONFIG_NFS_V4_1)
2092 struct nfs4_session
*session
= args
->sa_slot
->table
->session
;
2094 return session
->clp
->cl_mvops
->minor_version
;
2095 #endif /* CONFIG_NFS_V4_1 */
2100 * Encode an ACCESS request
2102 static void nfs4_xdr_enc_access(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2103 const struct nfs4_accessargs
*args
)
2105 struct compound_hdr hdr
= {
2106 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2109 encode_compound_hdr(xdr
, req
, &hdr
);
2110 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2111 encode_putfh(xdr
, args
->fh
, &hdr
);
2112 encode_access(xdr
, args
->access
, &hdr
);
2113 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2118 * Encode LOOKUP request
2120 static void nfs4_xdr_enc_lookup(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2121 const struct nfs4_lookup_arg
*args
)
2123 struct compound_hdr hdr
= {
2124 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2127 encode_compound_hdr(xdr
, req
, &hdr
);
2128 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2129 encode_putfh(xdr
, args
->dir_fh
, &hdr
);
2130 encode_lookup(xdr
, args
->name
, &hdr
);
2131 encode_getfh(xdr
, &hdr
);
2132 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2137 * Encode LOOKUP_ROOT request
2139 static void nfs4_xdr_enc_lookup_root(struct rpc_rqst
*req
,
2140 struct xdr_stream
*xdr
,
2141 const struct nfs4_lookup_root_arg
*args
)
2143 struct compound_hdr hdr
= {
2144 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2147 encode_compound_hdr(xdr
, req
, &hdr
);
2148 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2149 encode_putrootfh(xdr
, &hdr
);
2150 encode_getfh(xdr
, &hdr
);
2151 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2156 * Encode REMOVE request
2158 static void nfs4_xdr_enc_remove(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2159 const struct nfs_removeargs
*args
)
2161 struct compound_hdr hdr
= {
2162 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2165 encode_compound_hdr(xdr
, req
, &hdr
);
2166 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2167 encode_putfh(xdr
, args
->fh
, &hdr
);
2168 encode_remove(xdr
, &args
->name
, &hdr
);
2173 * Encode RENAME request
2175 static void nfs4_xdr_enc_rename(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2176 const struct nfs_renameargs
*args
)
2178 struct compound_hdr hdr
= {
2179 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2182 encode_compound_hdr(xdr
, req
, &hdr
);
2183 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2184 encode_putfh(xdr
, args
->old_dir
, &hdr
);
2185 encode_savefh(xdr
, &hdr
);
2186 encode_putfh(xdr
, args
->new_dir
, &hdr
);
2187 encode_rename(xdr
, args
->old_name
, args
->new_name
, &hdr
);
2192 * Encode LINK request
2194 static void nfs4_xdr_enc_link(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2195 const struct nfs4_link_arg
*args
)
2197 struct compound_hdr hdr
= {
2198 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2201 encode_compound_hdr(xdr
, req
, &hdr
);
2202 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2203 encode_putfh(xdr
, args
->fh
, &hdr
);
2204 encode_savefh(xdr
, &hdr
);
2205 encode_putfh(xdr
, args
->dir_fh
, &hdr
);
2206 encode_link(xdr
, args
->name
, &hdr
);
2207 encode_restorefh(xdr
, &hdr
);
2208 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2213 * Encode CREATE request
2215 static void nfs4_xdr_enc_create(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2216 const struct nfs4_create_arg
*args
)
2218 struct compound_hdr hdr
= {
2219 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2222 encode_compound_hdr(xdr
, req
, &hdr
);
2223 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2224 encode_putfh(xdr
, args
->dir_fh
, &hdr
);
2225 encode_create(xdr
, args
, &hdr
);
2226 encode_getfh(xdr
, &hdr
);
2227 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2232 * Encode SYMLINK request
2234 static void nfs4_xdr_enc_symlink(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2235 const struct nfs4_create_arg
*args
)
2237 nfs4_xdr_enc_create(req
, xdr
, args
);
2241 * Encode GETATTR request
2243 static void nfs4_xdr_enc_getattr(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2244 const struct nfs4_getattr_arg
*args
)
2246 struct compound_hdr hdr
= {
2247 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2250 encode_compound_hdr(xdr
, req
, &hdr
);
2251 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2252 encode_putfh(xdr
, args
->fh
, &hdr
);
2253 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2258 * Encode a CLOSE request
2260 static void nfs4_xdr_enc_close(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2261 struct nfs_closeargs
*args
)
2263 struct compound_hdr hdr
= {
2264 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2267 encode_compound_hdr(xdr
, req
, &hdr
);
2268 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2269 encode_putfh(xdr
, args
->fh
, &hdr
);
2271 encode_layoutreturn(xdr
, args
->lr_args
, &hdr
);
2272 if (args
->bitmask
!= NULL
)
2273 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2274 encode_close(xdr
, args
, &hdr
);
2279 * Encode an OPEN request
2281 static void nfs4_xdr_enc_open(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2282 struct nfs_openargs
*args
)
2284 struct compound_hdr hdr
= {
2285 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2288 encode_compound_hdr(xdr
, req
, &hdr
);
2289 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2290 encode_putfh(xdr
, args
->fh
, &hdr
);
2291 encode_open(xdr
, args
, &hdr
);
2292 encode_getfh(xdr
, &hdr
);
2294 encode_access(xdr
, args
->access
, &hdr
);
2295 encode_getfattr_open(xdr
, args
->bitmask
, args
->open_bitmap
, &hdr
);
2300 * Encode an OPEN_CONFIRM request
2302 static void nfs4_xdr_enc_open_confirm(struct rpc_rqst
*req
,
2303 struct xdr_stream
*xdr
,
2304 struct nfs_open_confirmargs
*args
)
2306 struct compound_hdr hdr
= {
2310 encode_compound_hdr(xdr
, req
, &hdr
);
2311 encode_putfh(xdr
, args
->fh
, &hdr
);
2312 encode_open_confirm(xdr
, args
, &hdr
);
2317 * Encode an OPEN request with no attributes.
2319 static void nfs4_xdr_enc_open_noattr(struct rpc_rqst
*req
,
2320 struct xdr_stream
*xdr
,
2321 struct nfs_openargs
*args
)
2323 struct compound_hdr hdr
= {
2324 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2327 encode_compound_hdr(xdr
, req
, &hdr
);
2328 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2329 encode_putfh(xdr
, args
->fh
, &hdr
);
2330 encode_open(xdr
, args
, &hdr
);
2332 encode_access(xdr
, args
->access
, &hdr
);
2333 encode_getfattr_open(xdr
, args
->bitmask
, args
->open_bitmap
, &hdr
);
2338 * Encode an OPEN_DOWNGRADE request
2340 static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst
*req
,
2341 struct xdr_stream
*xdr
,
2342 struct nfs_closeargs
*args
)
2344 struct compound_hdr hdr
= {
2345 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2348 encode_compound_hdr(xdr
, req
, &hdr
);
2349 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2350 encode_putfh(xdr
, args
->fh
, &hdr
);
2352 encode_layoutreturn(xdr
, args
->lr_args
, &hdr
);
2353 encode_open_downgrade(xdr
, args
, &hdr
);
2358 * Encode a LOCK request
2360 static void nfs4_xdr_enc_lock(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2361 struct nfs_lock_args
*args
)
2363 struct compound_hdr hdr
= {
2364 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2367 encode_compound_hdr(xdr
, req
, &hdr
);
2368 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2369 encode_putfh(xdr
, args
->fh
, &hdr
);
2370 encode_lock(xdr
, args
, &hdr
);
2375 * Encode a LOCKT request
2377 static void nfs4_xdr_enc_lockt(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2378 struct nfs_lockt_args
*args
)
2380 struct compound_hdr hdr
= {
2381 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2384 encode_compound_hdr(xdr
, req
, &hdr
);
2385 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2386 encode_putfh(xdr
, args
->fh
, &hdr
);
2387 encode_lockt(xdr
, args
, &hdr
);
2392 * Encode a LOCKU request
2394 static void nfs4_xdr_enc_locku(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2395 struct nfs_locku_args
*args
)
2397 struct compound_hdr hdr
= {
2398 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2401 encode_compound_hdr(xdr
, req
, &hdr
);
2402 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2403 encode_putfh(xdr
, args
->fh
, &hdr
);
2404 encode_locku(xdr
, args
, &hdr
);
2408 static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst
*req
,
2409 struct xdr_stream
*xdr
,
2410 struct nfs_release_lockowner_args
*args
)
2412 struct compound_hdr hdr
= {
2416 encode_compound_hdr(xdr
, req
, &hdr
);
2417 encode_release_lockowner(xdr
, &args
->lock_owner
, &hdr
);
2422 * Encode a READLINK request
2424 static void nfs4_xdr_enc_readlink(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2425 const struct nfs4_readlink
*args
)
2427 struct compound_hdr hdr
= {
2428 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2431 encode_compound_hdr(xdr
, req
, &hdr
);
2432 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2433 encode_putfh(xdr
, args
->fh
, &hdr
);
2434 encode_readlink(xdr
, args
, req
, &hdr
);
2436 xdr_inline_pages(&req
->rq_rcv_buf
, hdr
.replen
<< 2, args
->pages
,
2437 args
->pgbase
, args
->pglen
);
2442 * Encode a READDIR request
2444 static void nfs4_xdr_enc_readdir(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2445 const struct nfs4_readdir_arg
*args
)
2447 struct compound_hdr hdr
= {
2448 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2451 encode_compound_hdr(xdr
, req
, &hdr
);
2452 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2453 encode_putfh(xdr
, args
->fh
, &hdr
);
2454 encode_readdir(xdr
, args
, req
, &hdr
);
2456 xdr_inline_pages(&req
->rq_rcv_buf
, hdr
.replen
<< 2, args
->pages
,
2457 args
->pgbase
, args
->count
);
2458 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
2459 __func__
, hdr
.replen
<< 2, args
->pages
,
2460 args
->pgbase
, args
->count
);
2465 * Encode a READ request
2467 static void nfs4_xdr_enc_read(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2468 struct nfs_pgio_args
*args
)
2470 struct compound_hdr hdr
= {
2471 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2474 encode_compound_hdr(xdr
, req
, &hdr
);
2475 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2476 encode_putfh(xdr
, args
->fh
, &hdr
);
2477 encode_read(xdr
, args
, &hdr
);
2479 xdr_inline_pages(&req
->rq_rcv_buf
, hdr
.replen
<< 2,
2480 args
->pages
, args
->pgbase
, args
->count
);
2481 req
->rq_rcv_buf
.flags
|= XDRBUF_READ
;
2486 * Encode an SETATTR request
2488 static void nfs4_xdr_enc_setattr(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2489 struct nfs_setattrargs
*args
)
2491 struct compound_hdr hdr
= {
2492 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2495 encode_compound_hdr(xdr
, req
, &hdr
);
2496 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2497 encode_putfh(xdr
, args
->fh
, &hdr
);
2498 encode_setattr(xdr
, args
, args
->server
, &hdr
);
2499 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2504 * Encode a GETACL request
2506 static void nfs4_xdr_enc_getacl(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2507 struct nfs_getaclargs
*args
)
2509 struct compound_hdr hdr
= {
2510 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2514 encode_compound_hdr(xdr
, req
, &hdr
);
2515 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2516 encode_putfh(xdr
, args
->fh
, &hdr
);
2517 replen
= hdr
.replen
+ op_decode_hdr_maxsz
;
2518 encode_getattr_two(xdr
, FATTR4_WORD0_ACL
, 0, &hdr
);
2520 xdr_inline_pages(&req
->rq_rcv_buf
, replen
<< 2,
2521 args
->acl_pages
, 0, args
->acl_len
);
2527 * Encode a WRITE request
2529 static void nfs4_xdr_enc_write(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2530 struct nfs_pgio_args
*args
)
2532 struct compound_hdr hdr
= {
2533 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2536 encode_compound_hdr(xdr
, req
, &hdr
);
2537 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2538 encode_putfh(xdr
, args
->fh
, &hdr
);
2539 encode_write(xdr
, args
, &hdr
);
2540 req
->rq_snd_buf
.flags
|= XDRBUF_WRITE
;
2542 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2549 static void nfs4_xdr_enc_commit(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2550 struct nfs_commitargs
*args
)
2552 struct compound_hdr hdr
= {
2553 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2556 encode_compound_hdr(xdr
, req
, &hdr
);
2557 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2558 encode_putfh(xdr
, args
->fh
, &hdr
);
2559 encode_commit(xdr
, args
, &hdr
);
2566 static void nfs4_xdr_enc_fsinfo(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2567 struct nfs4_fsinfo_arg
*args
)
2569 struct compound_hdr hdr
= {
2570 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2573 encode_compound_hdr(xdr
, req
, &hdr
);
2574 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2575 encode_putfh(xdr
, args
->fh
, &hdr
);
2576 encode_fsinfo(xdr
, args
->bitmask
, &hdr
);
2581 * a PATHCONF request
2583 static void nfs4_xdr_enc_pathconf(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2584 const struct nfs4_pathconf_arg
*args
)
2586 struct compound_hdr hdr
= {
2587 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2590 encode_compound_hdr(xdr
, req
, &hdr
);
2591 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2592 encode_putfh(xdr
, args
->fh
, &hdr
);
2593 encode_getattr_one(xdr
, args
->bitmask
[0] & nfs4_pathconf_bitmap
[0],
2601 static void nfs4_xdr_enc_statfs(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2602 const struct nfs4_statfs_arg
*args
)
2604 struct compound_hdr hdr
= {
2605 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2608 encode_compound_hdr(xdr
, req
, &hdr
);
2609 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2610 encode_putfh(xdr
, args
->fh
, &hdr
);
2611 encode_getattr_two(xdr
, args
->bitmask
[0] & nfs4_statfs_bitmap
[0],
2612 args
->bitmask
[1] & nfs4_statfs_bitmap
[1], &hdr
);
2617 * GETATTR_BITMAP request
2619 static void nfs4_xdr_enc_server_caps(struct rpc_rqst
*req
,
2620 struct xdr_stream
*xdr
,
2621 struct nfs4_server_caps_arg
*args
)
2623 const u32
*bitmask
= args
->bitmask
;
2624 struct compound_hdr hdr
= {
2625 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2628 encode_compound_hdr(xdr
, req
, &hdr
);
2629 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2630 encode_putfh(xdr
, args
->fhandle
, &hdr
);
2631 encode_getattr_three(xdr
, bitmask
[0], bitmask
[1], bitmask
[2], &hdr
);
2638 static void nfs4_xdr_enc_renew(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2639 struct nfs_client
*clp
)
2641 struct compound_hdr hdr
= {
2645 encode_compound_hdr(xdr
, req
, &hdr
);
2646 encode_renew(xdr
, clp
->cl_clientid
, &hdr
);
2651 * a SETCLIENTID request
2653 static void nfs4_xdr_enc_setclientid(struct rpc_rqst
*req
,
2654 struct xdr_stream
*xdr
,
2655 struct nfs4_setclientid
*sc
)
2657 struct compound_hdr hdr
= {
2661 encode_compound_hdr(xdr
, req
, &hdr
);
2662 encode_setclientid(xdr
, sc
, &hdr
);
2667 * a SETCLIENTID_CONFIRM request
2669 static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst
*req
,
2670 struct xdr_stream
*xdr
,
2671 struct nfs4_setclientid_res
*arg
)
2673 struct compound_hdr hdr
= {
2677 encode_compound_hdr(xdr
, req
, &hdr
);
2678 encode_setclientid_confirm(xdr
, arg
, &hdr
);
2683 * DELEGRETURN request
2685 static void nfs4_xdr_enc_delegreturn(struct rpc_rqst
*req
,
2686 struct xdr_stream
*xdr
,
2687 const struct nfs4_delegreturnargs
*args
)
2689 struct compound_hdr hdr
= {
2690 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2693 encode_compound_hdr(xdr
, req
, &hdr
);
2694 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2695 encode_putfh(xdr
, args
->fhandle
, &hdr
);
2697 encode_layoutreturn(xdr
, args
->lr_args
, &hdr
);
2699 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2700 encode_delegreturn(xdr
, args
->stateid
, &hdr
);
2705 * Encode FS_LOCATIONS request
2707 static void nfs4_xdr_enc_fs_locations(struct rpc_rqst
*req
,
2708 struct xdr_stream
*xdr
,
2709 struct nfs4_fs_locations_arg
*args
)
2711 struct compound_hdr hdr
= {
2712 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2716 encode_compound_hdr(xdr
, req
, &hdr
);
2717 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2718 if (args
->migration
) {
2719 encode_putfh(xdr
, args
->fh
, &hdr
);
2720 replen
= hdr
.replen
;
2721 encode_fs_locations(xdr
, args
->bitmask
, &hdr
);
2723 encode_renew(xdr
, args
->clientid
, &hdr
);
2725 encode_putfh(xdr
, args
->dir_fh
, &hdr
);
2726 encode_lookup(xdr
, args
->name
, &hdr
);
2727 replen
= hdr
.replen
;
2728 encode_fs_locations(xdr
, args
->bitmask
, &hdr
);
2731 /* Set up reply kvec to capture returned fs_locations array. */
2732 xdr_inline_pages(&req
->rq_rcv_buf
, replen
<< 2, &args
->page
,
2738 * Encode SECINFO request
2740 static void nfs4_xdr_enc_secinfo(struct rpc_rqst
*req
,
2741 struct xdr_stream
*xdr
,
2742 struct nfs4_secinfo_arg
*args
)
2744 struct compound_hdr hdr
= {
2745 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2748 encode_compound_hdr(xdr
, req
, &hdr
);
2749 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2750 encode_putfh(xdr
, args
->dir_fh
, &hdr
);
2751 encode_secinfo(xdr
, args
->name
, &hdr
);
2756 * Encode FSID_PRESENT request
2758 static void nfs4_xdr_enc_fsid_present(struct rpc_rqst
*req
,
2759 struct xdr_stream
*xdr
,
2760 struct nfs4_fsid_present_arg
*args
)
2762 struct compound_hdr hdr
= {
2763 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2766 encode_compound_hdr(xdr
, req
, &hdr
);
2767 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2768 encode_putfh(xdr
, args
->fh
, &hdr
);
2769 encode_getfh(xdr
, &hdr
);
2771 encode_renew(xdr
, args
->clientid
, &hdr
);
2775 #if defined(CONFIG_NFS_V4_1)
2777 * BIND_CONN_TO_SESSION request
2779 static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst
*req
,
2780 struct xdr_stream
*xdr
,
2781 struct nfs41_bind_conn_to_session_args
*args
)
2783 struct compound_hdr hdr
= {
2784 .minorversion
= args
->client
->cl_mvops
->minor_version
,
2787 encode_compound_hdr(xdr
, req
, &hdr
);
2788 encode_bind_conn_to_session(xdr
, args
, &hdr
);
2793 * EXCHANGE_ID request
2795 static void nfs4_xdr_enc_exchange_id(struct rpc_rqst
*req
,
2796 struct xdr_stream
*xdr
,
2797 struct nfs41_exchange_id_args
*args
)
2799 struct compound_hdr hdr
= {
2800 .minorversion
= args
->client
->cl_mvops
->minor_version
,
2803 encode_compound_hdr(xdr
, req
, &hdr
);
2804 encode_exchange_id(xdr
, args
, &hdr
);
2809 * a CREATE_SESSION request
2811 static void nfs4_xdr_enc_create_session(struct rpc_rqst
*req
,
2812 struct xdr_stream
*xdr
,
2813 struct nfs41_create_session_args
*args
)
2815 struct compound_hdr hdr
= {
2816 .minorversion
= args
->client
->cl_mvops
->minor_version
,
2819 encode_compound_hdr(xdr
, req
, &hdr
);
2820 encode_create_session(xdr
, args
, &hdr
);
2825 * a DESTROY_SESSION request
2827 static void nfs4_xdr_enc_destroy_session(struct rpc_rqst
*req
,
2828 struct xdr_stream
*xdr
,
2829 struct nfs4_session
*session
)
2831 struct compound_hdr hdr
= {
2832 .minorversion
= session
->clp
->cl_mvops
->minor_version
,
2835 encode_compound_hdr(xdr
, req
, &hdr
);
2836 encode_destroy_session(xdr
, session
, &hdr
);
2841 * a DESTROY_CLIENTID request
2843 static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst
*req
,
2844 struct xdr_stream
*xdr
,
2845 struct nfs_client
*clp
)
2847 struct compound_hdr hdr
= {
2848 .minorversion
= clp
->cl_mvops
->minor_version
,
2851 encode_compound_hdr(xdr
, req
, &hdr
);
2852 encode_destroy_clientid(xdr
, clp
->cl_clientid
, &hdr
);
2857 * a SEQUENCE request
2859 static void nfs4_xdr_enc_sequence(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2860 struct nfs4_sequence_args
*args
)
2862 struct compound_hdr hdr
= {
2863 .minorversion
= nfs4_xdr_minorversion(args
),
2866 encode_compound_hdr(xdr
, req
, &hdr
);
2867 encode_sequence(xdr
, args
, &hdr
);
2872 * a GET_LEASE_TIME request
2874 static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst
*req
,
2875 struct xdr_stream
*xdr
,
2876 struct nfs4_get_lease_time_args
*args
)
2878 struct compound_hdr hdr
= {
2879 .minorversion
= nfs4_xdr_minorversion(&args
->la_seq_args
),
2881 const u32 lease_bitmap
[3] = { FATTR4_WORD0_LEASE_TIME
};
2883 encode_compound_hdr(xdr
, req
, &hdr
);
2884 encode_sequence(xdr
, &args
->la_seq_args
, &hdr
);
2885 encode_putrootfh(xdr
, &hdr
);
2886 encode_fsinfo(xdr
, lease_bitmap
, &hdr
);
2891 * a RECLAIM_COMPLETE request
2893 static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst
*req
,
2894 struct xdr_stream
*xdr
,
2895 struct nfs41_reclaim_complete_args
*args
)
2897 struct compound_hdr hdr
= {
2898 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
)
2901 encode_compound_hdr(xdr
, req
, &hdr
);
2902 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2903 encode_reclaim_complete(xdr
, args
, &hdr
);
2908 * Encode GETDEVICEINFO request
2910 static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst
*req
,
2911 struct xdr_stream
*xdr
,
2912 struct nfs4_getdeviceinfo_args
*args
)
2914 struct compound_hdr hdr
= {
2915 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2918 encode_compound_hdr(xdr
, req
, &hdr
);
2919 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2920 encode_getdeviceinfo(xdr
, args
, &hdr
);
2922 /* set up reply kvec. Subtract notification bitmap max size (2)
2923 * so that notification bitmap is put in xdr_buf tail */
2924 xdr_inline_pages(&req
->rq_rcv_buf
, (hdr
.replen
- 2) << 2,
2925 args
->pdev
->pages
, args
->pdev
->pgbase
,
2932 * Encode LAYOUTGET request
2934 static void nfs4_xdr_enc_layoutget(struct rpc_rqst
*req
,
2935 struct xdr_stream
*xdr
,
2936 struct nfs4_layoutget_args
*args
)
2938 struct compound_hdr hdr
= {
2939 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2942 encode_compound_hdr(xdr
, req
, &hdr
);
2943 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2944 encode_putfh(xdr
, NFS_FH(args
->inode
), &hdr
);
2945 encode_layoutget(xdr
, args
, &hdr
);
2947 xdr_inline_pages(&req
->rq_rcv_buf
, hdr
.replen
<< 2,
2948 args
->layout
.pages
, 0, args
->layout
.pglen
);
2954 * Encode LAYOUTCOMMIT request
2956 static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst
*req
,
2957 struct xdr_stream
*xdr
,
2958 struct nfs4_layoutcommit_args
*args
)
2960 struct nfs4_layoutcommit_data
*data
=
2961 container_of(args
, struct nfs4_layoutcommit_data
, args
);
2962 struct compound_hdr hdr
= {
2963 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2966 encode_compound_hdr(xdr
, req
, &hdr
);
2967 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2968 encode_putfh(xdr
, NFS_FH(args
->inode
), &hdr
);
2969 encode_layoutcommit(xdr
, data
->args
.inode
, args
, &hdr
);
2970 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2975 * Encode LAYOUTRETURN request
2977 static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst
*req
,
2978 struct xdr_stream
*xdr
,
2979 struct nfs4_layoutreturn_args
*args
)
2981 struct compound_hdr hdr
= {
2982 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2985 encode_compound_hdr(xdr
, req
, &hdr
);
2986 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2987 encode_putfh(xdr
, NFS_FH(args
->inode
), &hdr
);
2988 encode_layoutreturn(xdr
, args
, &hdr
);
2993 * Encode SECINFO_NO_NAME request
2995 static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst
*req
,
2996 struct xdr_stream
*xdr
,
2997 struct nfs41_secinfo_no_name_args
*args
)
2999 struct compound_hdr hdr
= {
3000 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
3003 encode_compound_hdr(xdr
, req
, &hdr
);
3004 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
3005 encode_putrootfh(xdr
, &hdr
);
3006 encode_secinfo_no_name(xdr
, args
, &hdr
);
3012 * Encode TEST_STATEID request
3014 static void nfs4_xdr_enc_test_stateid(struct rpc_rqst
*req
,
3015 struct xdr_stream
*xdr
,
3016 struct nfs41_test_stateid_args
*args
)
3018 struct compound_hdr hdr
= {
3019 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
3022 encode_compound_hdr(xdr
, req
, &hdr
);
3023 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
3024 encode_test_stateid(xdr
, args
, &hdr
);
3029 * Encode FREE_STATEID request
3031 static void nfs4_xdr_enc_free_stateid(struct rpc_rqst
*req
,
3032 struct xdr_stream
*xdr
,
3033 struct nfs41_free_stateid_args
*args
)
3035 struct compound_hdr hdr
= {
3036 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
3039 encode_compound_hdr(xdr
, req
, &hdr
);
3040 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
3041 encode_free_stateid(xdr
, args
, &hdr
);
3044 #endif /* CONFIG_NFS_V4_1 */
3046 static void print_overflow_msg(const char *func
, const struct xdr_stream
*xdr
)
3048 dprintk("nfs: %s: prematurely hit end of receive buffer. "
3049 "Remaining buffer length is %tu words.\n",
3050 func
, xdr
->end
- xdr
->p
);
3053 static int decode_opaque_inline(struct xdr_stream
*xdr
, unsigned int *len
, char **string
)
3055 ssize_t ret
= xdr_stream_decode_opaque_inline(xdr
, (void **)string
,
3057 if (unlikely(ret
< 0)) {
3058 if (ret
== -EBADMSG
)
3059 print_overflow_msg(__func__
, xdr
);
3066 static int decode_compound_hdr(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
3070 p
= xdr_inline_decode(xdr
, 8);
3073 hdr
->status
= be32_to_cpup(p
++);
3074 hdr
->taglen
= be32_to_cpup(p
);
3076 p
= xdr_inline_decode(xdr
, hdr
->taglen
+ 4);
3079 hdr
->tag
= (char *)p
;
3080 p
+= XDR_QUADLEN(hdr
->taglen
);
3081 hdr
->nops
= be32_to_cpup(p
);
3082 if (unlikely(hdr
->nops
< 1))
3083 return nfs4_stat_to_errno(hdr
->status
);
3086 print_overflow_msg(__func__
, xdr
);
3090 static bool __decode_op_hdr(struct xdr_stream
*xdr
, enum nfs_opnum4 expected
,
3097 p
= xdr_inline_decode(xdr
, 8);
3100 opnum
= be32_to_cpup(p
++);
3101 if (unlikely(opnum
!= expected
))
3102 goto out_bad_operation
;
3103 nfserr
= be32_to_cpup(p
);
3104 if (nfserr
== NFS_OK
)
3107 *nfs_retval
= nfs4_stat_to_errno(nfserr
);
3110 dprintk("nfs: Server returned operation"
3111 " %d but we issued a request for %d\n",
3113 *nfs_retval
= -EREMOTEIO
;
3116 print_overflow_msg(__func__
, xdr
);
3121 static int decode_op_hdr(struct xdr_stream
*xdr
, enum nfs_opnum4 expected
)
3125 __decode_op_hdr(xdr
, expected
, &retval
);
3130 static int decode_ace(struct xdr_stream
*xdr
, void *ace
)
3133 unsigned int strlen
;
3136 p
= xdr_inline_decode(xdr
, 12);
3138 return decode_opaque_inline(xdr
, &strlen
, &str
);
3139 print_overflow_msg(__func__
, xdr
);
3143 static int decode_attr_bitmap(struct xdr_stream
*xdr
, uint32_t *bitmap
)
3148 p
= xdr_inline_decode(xdr
, 4);
3151 bmlen
= be32_to_cpup(p
);
3153 bitmap
[0] = bitmap
[1] = bitmap
[2] = 0;
3154 p
= xdr_inline_decode(xdr
, (bmlen
<< 2));
3158 bitmap
[0] = be32_to_cpup(p
++);
3160 bitmap
[1] = be32_to_cpup(p
++);
3162 bitmap
[2] = be32_to_cpup(p
);
3167 print_overflow_msg(__func__
, xdr
);
3171 static int decode_attr_length(struct xdr_stream
*xdr
, uint32_t *attrlen
, unsigned int *savep
)
3175 p
= xdr_inline_decode(xdr
, 4);
3178 *attrlen
= be32_to_cpup(p
);
3179 *savep
= xdr_stream_pos(xdr
);
3182 print_overflow_msg(__func__
, xdr
);
3186 static int decode_attr_supported(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *bitmask
)
3188 if (likely(bitmap
[0] & FATTR4_WORD0_SUPPORTED_ATTRS
)) {
3190 ret
= decode_attr_bitmap(xdr
, bitmask
);
3191 if (unlikely(ret
< 0))
3193 bitmap
[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS
;
3195 bitmask
[0] = bitmask
[1] = bitmask
[2] = 0;
3196 dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__
,
3197 bitmask
[0], bitmask
[1], bitmask
[2]);
3201 static int decode_attr_type(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *type
)
3207 if (unlikely(bitmap
[0] & (FATTR4_WORD0_TYPE
- 1U)))
3209 if (likely(bitmap
[0] & FATTR4_WORD0_TYPE
)) {
3210 p
= xdr_inline_decode(xdr
, 4);
3213 *type
= be32_to_cpup(p
);
3214 if (*type
< NF4REG
|| *type
> NF4NAMEDATTR
) {
3215 dprintk("%s: bad type %d\n", __func__
, *type
);
3218 bitmap
[0] &= ~FATTR4_WORD0_TYPE
;
3219 ret
= NFS_ATTR_FATTR_TYPE
;
3221 dprintk("%s: type=0%o\n", __func__
, nfs_type2fmt
[*type
]);
3224 print_overflow_msg(__func__
, xdr
);
3228 static int decode_attr_fh_expire_type(struct xdr_stream
*xdr
,
3229 uint32_t *bitmap
, uint32_t *type
)
3234 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE
- 1U)))
3236 if (likely(bitmap
[0] & FATTR4_WORD0_FH_EXPIRE_TYPE
)) {
3237 p
= xdr_inline_decode(xdr
, 4);
3240 *type
= be32_to_cpup(p
);
3241 bitmap
[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE
;
3243 dprintk("%s: expire type=0x%x\n", __func__
, *type
);
3246 print_overflow_msg(__func__
, xdr
);
3250 static int decode_attr_change(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *change
)
3256 if (unlikely(bitmap
[0] & (FATTR4_WORD0_CHANGE
- 1U)))
3258 if (likely(bitmap
[0] & FATTR4_WORD0_CHANGE
)) {
3259 p
= xdr_inline_decode(xdr
, 8);
3262 xdr_decode_hyper(p
, change
);
3263 bitmap
[0] &= ~FATTR4_WORD0_CHANGE
;
3264 ret
= NFS_ATTR_FATTR_CHANGE
;
3266 dprintk("%s: change attribute=%Lu\n", __func__
,
3267 (unsigned long long)*change
);
3270 print_overflow_msg(__func__
, xdr
);
3274 static int decode_attr_size(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *size
)
3280 if (unlikely(bitmap
[0] & (FATTR4_WORD0_SIZE
- 1U)))
3282 if (likely(bitmap
[0] & FATTR4_WORD0_SIZE
)) {
3283 p
= xdr_inline_decode(xdr
, 8);
3286 xdr_decode_hyper(p
, size
);
3287 bitmap
[0] &= ~FATTR4_WORD0_SIZE
;
3288 ret
= NFS_ATTR_FATTR_SIZE
;
3290 dprintk("%s: file size=%Lu\n", __func__
, (unsigned long long)*size
);
3293 print_overflow_msg(__func__
, xdr
);
3297 static int decode_attr_link_support(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3302 if (unlikely(bitmap
[0] & (FATTR4_WORD0_LINK_SUPPORT
- 1U)))
3304 if (likely(bitmap
[0] & FATTR4_WORD0_LINK_SUPPORT
)) {
3305 p
= xdr_inline_decode(xdr
, 4);
3308 *res
= be32_to_cpup(p
);
3309 bitmap
[0] &= ~FATTR4_WORD0_LINK_SUPPORT
;
3311 dprintk("%s: link support=%s\n", __func__
, *res
== 0 ? "false" : "true");
3314 print_overflow_msg(__func__
, xdr
);
3318 static int decode_attr_symlink_support(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3323 if (unlikely(bitmap
[0] & (FATTR4_WORD0_SYMLINK_SUPPORT
- 1U)))
3325 if (likely(bitmap
[0] & FATTR4_WORD0_SYMLINK_SUPPORT
)) {
3326 p
= xdr_inline_decode(xdr
, 4);
3329 *res
= be32_to_cpup(p
);
3330 bitmap
[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT
;
3332 dprintk("%s: symlink support=%s\n", __func__
, *res
== 0 ? "false" : "true");
3335 print_overflow_msg(__func__
, xdr
);
3339 static int decode_attr_fsid(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct nfs_fsid
*fsid
)
3346 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FSID
- 1U)))
3348 if (likely(bitmap
[0] & FATTR4_WORD0_FSID
)) {
3349 p
= xdr_inline_decode(xdr
, 16);
3352 p
= xdr_decode_hyper(p
, &fsid
->major
);
3353 xdr_decode_hyper(p
, &fsid
->minor
);
3354 bitmap
[0] &= ~FATTR4_WORD0_FSID
;
3355 ret
= NFS_ATTR_FATTR_FSID
;
3357 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__
,
3358 (unsigned long long)fsid
->major
,
3359 (unsigned long long)fsid
->minor
);
3362 print_overflow_msg(__func__
, xdr
);
3366 static int decode_attr_lease_time(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3371 if (unlikely(bitmap
[0] & (FATTR4_WORD0_LEASE_TIME
- 1U)))
3373 if (likely(bitmap
[0] & FATTR4_WORD0_LEASE_TIME
)) {
3374 p
= xdr_inline_decode(xdr
, 4);
3377 *res
= be32_to_cpup(p
);
3378 bitmap
[0] &= ~FATTR4_WORD0_LEASE_TIME
;
3380 dprintk("%s: file size=%u\n", __func__
, (unsigned int)*res
);
3383 print_overflow_msg(__func__
, xdr
);
3387 static int decode_attr_error(struct xdr_stream
*xdr
, uint32_t *bitmap
, int32_t *res
)
3391 if (unlikely(bitmap
[0] & (FATTR4_WORD0_RDATTR_ERROR
- 1U)))
3393 if (likely(bitmap
[0] & FATTR4_WORD0_RDATTR_ERROR
)) {
3394 p
= xdr_inline_decode(xdr
, 4);
3397 bitmap
[0] &= ~FATTR4_WORD0_RDATTR_ERROR
;
3398 *res
= -be32_to_cpup(p
);
3402 print_overflow_msg(__func__
, xdr
);
3406 static int decode_attr_exclcreat_supported(struct xdr_stream
*xdr
,
3407 uint32_t *bitmap
, uint32_t *bitmask
)
3409 if (likely(bitmap
[2] & FATTR4_WORD2_SUPPATTR_EXCLCREAT
)) {
3411 ret
= decode_attr_bitmap(xdr
, bitmask
);
3412 if (unlikely(ret
< 0))
3414 bitmap
[2] &= ~FATTR4_WORD2_SUPPATTR_EXCLCREAT
;
3416 bitmask
[0] = bitmask
[1] = bitmask
[2] = 0;
3417 dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__
,
3418 bitmask
[0], bitmask
[1], bitmask
[2]);
3422 static int decode_attr_filehandle(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct nfs_fh
*fh
)
3428 memset(fh
, 0, sizeof(*fh
));
3430 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILEHANDLE
- 1U)))
3432 if (likely(bitmap
[0] & FATTR4_WORD0_FILEHANDLE
)) {
3433 p
= xdr_inline_decode(xdr
, 4);
3436 len
= be32_to_cpup(p
);
3437 if (len
> NFS4_FHSIZE
)
3439 p
= xdr_inline_decode(xdr
, len
);
3443 memcpy(fh
->data
, p
, len
);
3446 bitmap
[0] &= ~FATTR4_WORD0_FILEHANDLE
;
3450 print_overflow_msg(__func__
, xdr
);
3454 static int decode_attr_aclsupport(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3459 if (unlikely(bitmap
[0] & (FATTR4_WORD0_ACLSUPPORT
- 1U)))
3461 if (likely(bitmap
[0] & FATTR4_WORD0_ACLSUPPORT
)) {
3462 p
= xdr_inline_decode(xdr
, 4);
3465 *res
= be32_to_cpup(p
);
3466 bitmap
[0] &= ~FATTR4_WORD0_ACLSUPPORT
;
3468 dprintk("%s: ACLs supported=%u\n", __func__
, (unsigned int)*res
);
3471 print_overflow_msg(__func__
, xdr
);
3475 static int decode_attr_fileid(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *fileid
)
3481 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILEID
- 1U)))
3483 if (likely(bitmap
[0] & FATTR4_WORD0_FILEID
)) {
3484 p
= xdr_inline_decode(xdr
, 8);
3487 xdr_decode_hyper(p
, fileid
);
3488 bitmap
[0] &= ~FATTR4_WORD0_FILEID
;
3489 ret
= NFS_ATTR_FATTR_FILEID
;
3491 dprintk("%s: fileid=%Lu\n", __func__
, (unsigned long long)*fileid
);
3494 print_overflow_msg(__func__
, xdr
);
3498 static int decode_attr_mounted_on_fileid(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *fileid
)
3504 if (unlikely(bitmap
[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID
- 1U)))
3506 if (likely(bitmap
[1] & FATTR4_WORD1_MOUNTED_ON_FILEID
)) {
3507 p
= xdr_inline_decode(xdr
, 8);
3510 xdr_decode_hyper(p
, fileid
);
3511 bitmap
[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID
;
3512 ret
= NFS_ATTR_FATTR_MOUNTED_ON_FILEID
;
3514 dprintk("%s: fileid=%Lu\n", __func__
, (unsigned long long)*fileid
);
3517 print_overflow_msg(__func__
, xdr
);
3521 static int decode_attr_files_avail(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3527 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_AVAIL
- 1U)))
3529 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_AVAIL
)) {
3530 p
= xdr_inline_decode(xdr
, 8);
3533 xdr_decode_hyper(p
, res
);
3534 bitmap
[0] &= ~FATTR4_WORD0_FILES_AVAIL
;
3536 dprintk("%s: files avail=%Lu\n", __func__
, (unsigned long long)*res
);
3539 print_overflow_msg(__func__
, xdr
);
3543 static int decode_attr_files_free(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3549 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_FREE
- 1U)))
3551 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_FREE
)) {
3552 p
= xdr_inline_decode(xdr
, 8);
3555 xdr_decode_hyper(p
, res
);
3556 bitmap
[0] &= ~FATTR4_WORD0_FILES_FREE
;
3558 dprintk("%s: files free=%Lu\n", __func__
, (unsigned long long)*res
);
3561 print_overflow_msg(__func__
, xdr
);
3565 static int decode_attr_files_total(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3571 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_TOTAL
- 1U)))
3573 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_TOTAL
)) {
3574 p
= xdr_inline_decode(xdr
, 8);
3577 xdr_decode_hyper(p
, res
);
3578 bitmap
[0] &= ~FATTR4_WORD0_FILES_TOTAL
;
3580 dprintk("%s: files total=%Lu\n", __func__
, (unsigned long long)*res
);
3583 print_overflow_msg(__func__
, xdr
);
3587 static int decode_pathname(struct xdr_stream
*xdr
, struct nfs4_pathname
*path
)
3593 p
= xdr_inline_decode(xdr
, 4);
3596 n
= be32_to_cpup(p
);
3599 dprintk("pathname4: ");
3600 if (n
> NFS4_PATHNAME_MAXCOMPONENTS
) {
3601 dprintk("cannot parse %d components in path\n", n
);
3604 for (path
->ncomponents
= 0; path
->ncomponents
< n
; path
->ncomponents
++) {
3605 struct nfs4_string
*component
= &path
->components
[path
->ncomponents
];
3606 status
= decode_opaque_inline(xdr
, &component
->len
, &component
->data
);
3607 if (unlikely(status
!= 0))
3611 (path
->ncomponents
!= n
? "/ " : ""),
3612 component
->len
, component
->data
);
3617 /* a root pathname is sent as a zero component4 */
3618 path
->ncomponents
= 1;
3619 path
->components
[0].len
=0;
3620 path
->components
[0].data
=NULL
;
3621 dprintk("pathname4: /\n");
3624 dprintk(" status %d", status
);
3628 print_overflow_msg(__func__
, xdr
);
3632 static int decode_attr_fs_locations(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct nfs4_fs_locations
*res
)
3638 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FS_LOCATIONS
-1U)))
3641 if (unlikely(!(bitmap
[0] & FATTR4_WORD0_FS_LOCATIONS
)))
3643 bitmap
[0] &= ~FATTR4_WORD0_FS_LOCATIONS
;
3645 /* Ignore borken servers that return unrequested attrs */
3646 if (unlikely(res
== NULL
))
3648 dprintk("%s: fsroot:\n", __func__
);
3649 status
= decode_pathname(xdr
, &res
->fs_path
);
3650 if (unlikely(status
!= 0))
3652 p
= xdr_inline_decode(xdr
, 4);
3655 n
= be32_to_cpup(p
);
3658 for (res
->nlocations
= 0; res
->nlocations
< n
; res
->nlocations
++) {
3660 struct nfs4_fs_location
*loc
;
3662 if (res
->nlocations
== NFS4_FS_LOCATIONS_MAXENTRIES
)
3664 loc
= &res
->locations
[res
->nlocations
];
3665 p
= xdr_inline_decode(xdr
, 4);
3668 m
= be32_to_cpup(p
);
3670 dprintk("%s: servers:\n", __func__
);
3671 for (loc
->nservers
= 0; loc
->nservers
< m
; loc
->nservers
++) {
3672 struct nfs4_string
*server
;
3674 if (loc
->nservers
== NFS4_FS_LOCATION_MAXSERVERS
) {
3676 dprintk("%s: using first %u of %u servers "
3677 "returned for location %u\n",
3679 NFS4_FS_LOCATION_MAXSERVERS
,
3680 m
, res
->nlocations
);
3681 for (i
= loc
->nservers
; i
< m
; i
++) {
3684 status
= decode_opaque_inline(xdr
, &len
, &data
);
3685 if (unlikely(status
!= 0))
3690 server
= &loc
->servers
[loc
->nservers
];
3691 status
= decode_opaque_inline(xdr
, &server
->len
, &server
->data
);
3692 if (unlikely(status
!= 0))
3694 dprintk("%s ", server
->data
);
3696 status
= decode_pathname(xdr
, &loc
->rootpath
);
3697 if (unlikely(status
!= 0))
3700 if (res
->nlocations
!= 0)
3701 status
= NFS_ATTR_FATTR_V4_LOCATIONS
;
3703 dprintk("%s: fs_locations done, error = %d\n", __func__
, status
);
3706 print_overflow_msg(__func__
, xdr
);
3712 static int decode_attr_maxfilesize(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3718 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXFILESIZE
- 1U)))
3720 if (likely(bitmap
[0] & FATTR4_WORD0_MAXFILESIZE
)) {
3721 p
= xdr_inline_decode(xdr
, 8);
3724 xdr_decode_hyper(p
, res
);
3725 bitmap
[0] &= ~FATTR4_WORD0_MAXFILESIZE
;
3727 dprintk("%s: maxfilesize=%Lu\n", __func__
, (unsigned long long)*res
);
3730 print_overflow_msg(__func__
, xdr
);
3734 static int decode_attr_maxlink(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *maxlink
)
3740 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXLINK
- 1U)))
3742 if (likely(bitmap
[0] & FATTR4_WORD0_MAXLINK
)) {
3743 p
= xdr_inline_decode(xdr
, 4);
3746 *maxlink
= be32_to_cpup(p
);
3747 bitmap
[0] &= ~FATTR4_WORD0_MAXLINK
;
3749 dprintk("%s: maxlink=%u\n", __func__
, *maxlink
);
3752 print_overflow_msg(__func__
, xdr
);
3756 static int decode_attr_maxname(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *maxname
)
3762 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXNAME
- 1U)))
3764 if (likely(bitmap
[0] & FATTR4_WORD0_MAXNAME
)) {
3765 p
= xdr_inline_decode(xdr
, 4);
3768 *maxname
= be32_to_cpup(p
);
3769 bitmap
[0] &= ~FATTR4_WORD0_MAXNAME
;
3771 dprintk("%s: maxname=%u\n", __func__
, *maxname
);
3774 print_overflow_msg(__func__
, xdr
);
3778 static int decode_attr_maxread(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3784 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXREAD
- 1U)))
3786 if (likely(bitmap
[0] & FATTR4_WORD0_MAXREAD
)) {
3788 p
= xdr_inline_decode(xdr
, 8);
3791 xdr_decode_hyper(p
, &maxread
);
3792 if (maxread
> 0x7FFFFFFF)
3793 maxread
= 0x7FFFFFFF;
3794 *res
= (uint32_t)maxread
;
3795 bitmap
[0] &= ~FATTR4_WORD0_MAXREAD
;
3797 dprintk("%s: maxread=%lu\n", __func__
, (unsigned long)*res
);
3800 print_overflow_msg(__func__
, xdr
);
3804 static int decode_attr_maxwrite(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3810 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXWRITE
- 1U)))
3812 if (likely(bitmap
[0] & FATTR4_WORD0_MAXWRITE
)) {
3814 p
= xdr_inline_decode(xdr
, 8);
3817 xdr_decode_hyper(p
, &maxwrite
);
3818 if (maxwrite
> 0x7FFFFFFF)
3819 maxwrite
= 0x7FFFFFFF;
3820 *res
= (uint32_t)maxwrite
;
3821 bitmap
[0] &= ~FATTR4_WORD0_MAXWRITE
;
3823 dprintk("%s: maxwrite=%lu\n", __func__
, (unsigned long)*res
);
3826 print_overflow_msg(__func__
, xdr
);
3830 static int decode_attr_mode(struct xdr_stream
*xdr
, uint32_t *bitmap
, umode_t
*mode
)
3837 if (unlikely(bitmap
[1] & (FATTR4_WORD1_MODE
- 1U)))
3839 if (likely(bitmap
[1] & FATTR4_WORD1_MODE
)) {
3840 p
= xdr_inline_decode(xdr
, 4);
3843 tmp
= be32_to_cpup(p
);
3844 *mode
= tmp
& ~S_IFMT
;
3845 bitmap
[1] &= ~FATTR4_WORD1_MODE
;
3846 ret
= NFS_ATTR_FATTR_MODE
;
3848 dprintk("%s: file mode=0%o\n", __func__
, (unsigned int)*mode
);
3851 print_overflow_msg(__func__
, xdr
);
3855 static int decode_attr_nlink(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *nlink
)
3861 if (unlikely(bitmap
[1] & (FATTR4_WORD1_NUMLINKS
- 1U)))
3863 if (likely(bitmap
[1] & FATTR4_WORD1_NUMLINKS
)) {
3864 p
= xdr_inline_decode(xdr
, 4);
3867 *nlink
= be32_to_cpup(p
);
3868 bitmap
[1] &= ~FATTR4_WORD1_NUMLINKS
;
3869 ret
= NFS_ATTR_FATTR_NLINK
;
3871 dprintk("%s: nlink=%u\n", __func__
, (unsigned int)*nlink
);
3874 print_overflow_msg(__func__
, xdr
);
3878 static ssize_t
decode_nfs4_string(struct xdr_stream
*xdr
,
3879 struct nfs4_string
*name
, gfp_t gfp_flags
)
3883 ret
= xdr_stream_decode_string_dup(xdr
, &name
->data
,
3884 XDR_MAX_NETOBJ
, gfp_flags
);
3891 static int decode_attr_owner(struct xdr_stream
*xdr
, uint32_t *bitmap
,
3892 const struct nfs_server
*server
, kuid_t
*uid
,
3893 struct nfs4_string
*owner_name
)
3898 *uid
= make_kuid(&init_user_ns
, -2);
3899 if (unlikely(bitmap
[1] & (FATTR4_WORD1_OWNER
- 1U)))
3901 if (!(bitmap
[1] & FATTR4_WORD1_OWNER
))
3903 bitmap
[1] &= ~FATTR4_WORD1_OWNER
;
3905 if (owner_name
!= NULL
) {
3906 len
= decode_nfs4_string(xdr
, owner_name
, GFP_NOWAIT
);
3909 dprintk("%s: name=%s\n", __func__
, owner_name
->data
);
3910 return NFS_ATTR_FATTR_OWNER_NAME
;
3912 len
= xdr_stream_decode_opaque_inline(xdr
, (void **)&p
,
3914 if (len
<= 0 || nfs_map_name_to_uid(server
, p
, len
, uid
) != 0)
3916 dprintk("%s: uid=%d\n", __func__
, (int)from_kuid(&init_user_ns
, *uid
));
3917 return NFS_ATTR_FATTR_OWNER
;
3920 if (len
!= -EBADMSG
)
3922 print_overflow_msg(__func__
, xdr
);
3926 static int decode_attr_group(struct xdr_stream
*xdr
, uint32_t *bitmap
,
3927 const struct nfs_server
*server
, kgid_t
*gid
,
3928 struct nfs4_string
*group_name
)
3933 *gid
= make_kgid(&init_user_ns
, -2);
3934 if (unlikely(bitmap
[1] & (FATTR4_WORD1_OWNER_GROUP
- 1U)))
3936 if (!(bitmap
[1] & FATTR4_WORD1_OWNER_GROUP
))
3938 bitmap
[1] &= ~FATTR4_WORD1_OWNER_GROUP
;
3940 if (group_name
!= NULL
) {
3941 len
= decode_nfs4_string(xdr
, group_name
, GFP_NOWAIT
);
3944 dprintk("%s: name=%s\n", __func__
, group_name
->data
);
3945 return NFS_ATTR_FATTR_GROUP_NAME
;
3947 len
= xdr_stream_decode_opaque_inline(xdr
, (void **)&p
,
3949 if (len
<= 0 || nfs_map_group_to_gid(server
, p
, len
, gid
) != 0)
3951 dprintk("%s: gid=%d\n", __func__
, (int)from_kgid(&init_user_ns
, *gid
));
3952 return NFS_ATTR_FATTR_GROUP
;
3955 if (len
!= -EBADMSG
)
3957 print_overflow_msg(__func__
, xdr
);
3961 static int decode_attr_rdev(struct xdr_stream
*xdr
, uint32_t *bitmap
, dev_t
*rdev
)
3963 uint32_t major
= 0, minor
= 0;
3968 if (unlikely(bitmap
[1] & (FATTR4_WORD1_RAWDEV
- 1U)))
3970 if (likely(bitmap
[1] & FATTR4_WORD1_RAWDEV
)) {
3973 p
= xdr_inline_decode(xdr
, 8);
3976 major
= be32_to_cpup(p
++);
3977 minor
= be32_to_cpup(p
);
3978 tmp
= MKDEV(major
, minor
);
3979 if (MAJOR(tmp
) == major
&& MINOR(tmp
) == minor
)
3981 bitmap
[1] &= ~ FATTR4_WORD1_RAWDEV
;
3982 ret
= NFS_ATTR_FATTR_RDEV
;
3984 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__
, major
, minor
);
3987 print_overflow_msg(__func__
, xdr
);
3991 static int decode_attr_space_avail(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3997 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_AVAIL
- 1U)))
3999 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_AVAIL
)) {
4000 p
= xdr_inline_decode(xdr
, 8);
4003 xdr_decode_hyper(p
, res
);
4004 bitmap
[1] &= ~FATTR4_WORD1_SPACE_AVAIL
;
4006 dprintk("%s: space avail=%Lu\n", __func__
, (unsigned long long)*res
);
4009 print_overflow_msg(__func__
, xdr
);
4013 static int decode_attr_space_free(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
4019 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_FREE
- 1U)))
4021 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_FREE
)) {
4022 p
= xdr_inline_decode(xdr
, 8);
4025 xdr_decode_hyper(p
, res
);
4026 bitmap
[1] &= ~FATTR4_WORD1_SPACE_FREE
;
4028 dprintk("%s: space free=%Lu\n", __func__
, (unsigned long long)*res
);
4031 print_overflow_msg(__func__
, xdr
);
4035 static int decode_attr_space_total(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
4041 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_TOTAL
- 1U)))
4043 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_TOTAL
)) {
4044 p
= xdr_inline_decode(xdr
, 8);
4047 xdr_decode_hyper(p
, res
);
4048 bitmap
[1] &= ~FATTR4_WORD1_SPACE_TOTAL
;
4050 dprintk("%s: space total=%Lu\n", __func__
, (unsigned long long)*res
);
4053 print_overflow_msg(__func__
, xdr
);
4057 static int decode_attr_space_used(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *used
)
4063 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_USED
- 1U)))
4065 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_USED
)) {
4066 p
= xdr_inline_decode(xdr
, 8);
4069 xdr_decode_hyper(p
, used
);
4070 bitmap
[1] &= ~FATTR4_WORD1_SPACE_USED
;
4071 ret
= NFS_ATTR_FATTR_SPACE_USED
;
4073 dprintk("%s: space used=%Lu\n", __func__
,
4074 (unsigned long long)*used
);
4077 print_overflow_msg(__func__
, xdr
);
4081 static int decode_attr_time(struct xdr_stream
*xdr
, struct timespec
*time
)
4087 p
= xdr_inline_decode(xdr
, 12);
4090 p
= xdr_decode_hyper(p
, &sec
);
4091 nsec
= be32_to_cpup(p
);
4092 time
->tv_sec
= (time_t)sec
;
4093 time
->tv_nsec
= (long)nsec
;
4096 print_overflow_msg(__func__
, xdr
);
4100 static int decode_attr_time_access(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec
*time
)
4106 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_ACCESS
- 1U)))
4108 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_ACCESS
)) {
4109 status
= decode_attr_time(xdr
, time
);
4111 status
= NFS_ATTR_FATTR_ATIME
;
4112 bitmap
[1] &= ~FATTR4_WORD1_TIME_ACCESS
;
4114 dprintk("%s: atime=%ld\n", __func__
, (long)time
->tv_sec
);
4118 static int decode_attr_time_metadata(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec
*time
)
4124 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_METADATA
- 1U)))
4126 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_METADATA
)) {
4127 status
= decode_attr_time(xdr
, time
);
4129 status
= NFS_ATTR_FATTR_CTIME
;
4130 bitmap
[1] &= ~FATTR4_WORD1_TIME_METADATA
;
4132 dprintk("%s: ctime=%ld\n", __func__
, (long)time
->tv_sec
);
4136 static int decode_attr_time_delta(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4137 struct timespec
*time
)
4143 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_DELTA
- 1U)))
4145 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_DELTA
)) {
4146 status
= decode_attr_time(xdr
, time
);
4147 bitmap
[1] &= ~FATTR4_WORD1_TIME_DELTA
;
4149 dprintk("%s: time_delta=%ld %ld\n", __func__
, (long)time
->tv_sec
,
4150 (long)time
->tv_nsec
);
4154 static int decode_attr_security_label(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4155 struct nfs4_label
*label
)
4163 if (unlikely(bitmap
[2] & (FATTR4_WORD2_SECURITY_LABEL
- 1U)))
4165 if (likely(bitmap
[2] & FATTR4_WORD2_SECURITY_LABEL
)) {
4166 p
= xdr_inline_decode(xdr
, 4);
4169 lfs
= be32_to_cpup(p
++);
4170 p
= xdr_inline_decode(xdr
, 4);
4173 pi
= be32_to_cpup(p
++);
4174 p
= xdr_inline_decode(xdr
, 4);
4177 len
= be32_to_cpup(p
++);
4178 p
= xdr_inline_decode(xdr
, len
);
4181 if (len
< NFS4_MAXLABELLEN
) {
4183 memcpy(label
->label
, p
, len
);
4187 status
= NFS_ATTR_FATTR_V4_SECURITY_LABEL
;
4189 bitmap
[2] &= ~FATTR4_WORD2_SECURITY_LABEL
;
4191 printk(KERN_WARNING
"%s: label too long (%u)!\n",
4194 if (label
&& label
->label
)
4195 dprintk("%s: label=%s, len=%d, PI=%d, LFS=%d\n", __func__
,
4196 (char *)label
->label
, label
->len
, label
->pi
, label
->lfs
);
4200 print_overflow_msg(__func__
, xdr
);
4204 static int decode_attr_time_modify(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec
*time
)
4210 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_MODIFY
- 1U)))
4212 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_MODIFY
)) {
4213 status
= decode_attr_time(xdr
, time
);
4215 status
= NFS_ATTR_FATTR_MTIME
;
4216 bitmap
[1] &= ~FATTR4_WORD1_TIME_MODIFY
;
4218 dprintk("%s: mtime=%ld\n", __func__
, (long)time
->tv_sec
);
4222 static int verify_attr_len(struct xdr_stream
*xdr
, unsigned int savep
, uint32_t attrlen
)
4224 unsigned int attrwords
= XDR_QUADLEN(attrlen
);
4225 unsigned int nwords
= (xdr_stream_pos(xdr
) - savep
) >> 2;
4227 if (unlikely(attrwords
!= nwords
)) {
4228 dprintk("%s: server returned incorrect attribute length: "
4232 (attrwords
< nwords
) ? '<' : '>',
4239 static int decode_change_info(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
4243 p
= xdr_inline_decode(xdr
, 20);
4246 cinfo
->atomic
= be32_to_cpup(p
++);
4247 p
= xdr_decode_hyper(p
, &cinfo
->before
);
4248 xdr_decode_hyper(p
, &cinfo
->after
);
4251 print_overflow_msg(__func__
, xdr
);
4255 static int decode_access(struct xdr_stream
*xdr
, u32
*supported
, u32
*access
)
4261 status
= decode_op_hdr(xdr
, OP_ACCESS
);
4264 p
= xdr_inline_decode(xdr
, 8);
4267 supp
= be32_to_cpup(p
++);
4268 acc
= be32_to_cpup(p
);
4273 print_overflow_msg(__func__
, xdr
);
4277 static int decode_opaque_fixed(struct xdr_stream
*xdr
, void *buf
, size_t len
)
4279 ssize_t ret
= xdr_stream_decode_opaque_fixed(xdr
, buf
, len
);
4280 if (unlikely(ret
< 0)) {
4281 print_overflow_msg(__func__
, xdr
);
4287 static int decode_stateid(struct xdr_stream
*xdr
, nfs4_stateid
*stateid
)
4289 return decode_opaque_fixed(xdr
, stateid
, NFS4_STATEID_SIZE
);
4292 static int decode_open_stateid(struct xdr_stream
*xdr
, nfs4_stateid
*stateid
)
4294 stateid
->type
= NFS4_OPEN_STATEID_TYPE
;
4295 return decode_stateid(xdr
, stateid
);
4298 static int decode_lock_stateid(struct xdr_stream
*xdr
, nfs4_stateid
*stateid
)
4300 stateid
->type
= NFS4_LOCK_STATEID_TYPE
;
4301 return decode_stateid(xdr
, stateid
);
4304 static int decode_delegation_stateid(struct xdr_stream
*xdr
, nfs4_stateid
*stateid
)
4306 stateid
->type
= NFS4_DELEGATION_STATEID_TYPE
;
4307 return decode_stateid(xdr
, stateid
);
4310 static int decode_close(struct xdr_stream
*xdr
, struct nfs_closeres
*res
)
4314 status
= decode_op_hdr(xdr
, OP_CLOSE
);
4316 nfs_increment_open_seqid(status
, res
->seqid
);
4318 status
= decode_open_stateid(xdr
, &res
->stateid
);
4322 static int decode_verifier(struct xdr_stream
*xdr
, void *verifier
)
4324 return decode_opaque_fixed(xdr
, verifier
, NFS4_VERIFIER_SIZE
);
4327 static int decode_write_verifier(struct xdr_stream
*xdr
, struct nfs_write_verifier
*verifier
)
4329 return decode_opaque_fixed(xdr
, verifier
->data
, NFS4_VERIFIER_SIZE
);
4332 static int decode_commit(struct xdr_stream
*xdr
, struct nfs_commitres
*res
)
4336 status
= decode_op_hdr(xdr
, OP_COMMIT
);
4338 status
= decode_write_verifier(xdr
, &res
->verf
->verifier
);
4342 static int decode_create(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
4348 status
= decode_op_hdr(xdr
, OP_CREATE
);
4351 if ((status
= decode_change_info(xdr
, cinfo
)))
4353 p
= xdr_inline_decode(xdr
, 4);
4356 bmlen
= be32_to_cpup(p
);
4357 p
= xdr_inline_decode(xdr
, bmlen
<< 2);
4361 print_overflow_msg(__func__
, xdr
);
4365 static int decode_server_caps(struct xdr_stream
*xdr
, struct nfs4_server_caps_res
*res
)
4368 uint32_t attrlen
, bitmap
[3] = {0};
4371 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
4373 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
4375 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
4377 if ((status
= decode_attr_supported(xdr
, bitmap
, res
->attr_bitmask
)) != 0)
4379 if ((status
= decode_attr_fh_expire_type(xdr
, bitmap
,
4380 &res
->fh_expire_type
)) != 0)
4382 if ((status
= decode_attr_link_support(xdr
, bitmap
, &res
->has_links
)) != 0)
4384 if ((status
= decode_attr_symlink_support(xdr
, bitmap
, &res
->has_symlinks
)) != 0)
4386 if ((status
= decode_attr_aclsupport(xdr
, bitmap
, &res
->acl_bitmask
)) != 0)
4388 if ((status
= decode_attr_exclcreat_supported(xdr
, bitmap
,
4389 res
->exclcreat_bitmask
)) != 0)
4391 status
= verify_attr_len(xdr
, savep
, attrlen
);
4393 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
4397 static int decode_statfs(struct xdr_stream
*xdr
, struct nfs_fsstat
*fsstat
)
4400 uint32_t attrlen
, bitmap
[3] = {0};
4403 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
4405 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
4407 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
4410 if ((status
= decode_attr_files_avail(xdr
, bitmap
, &fsstat
->afiles
)) != 0)
4412 if ((status
= decode_attr_files_free(xdr
, bitmap
, &fsstat
->ffiles
)) != 0)
4414 if ((status
= decode_attr_files_total(xdr
, bitmap
, &fsstat
->tfiles
)) != 0)
4418 if (unlikely(bitmap
[0]))
4421 if ((status
= decode_attr_space_avail(xdr
, bitmap
, &fsstat
->abytes
)) != 0)
4423 if ((status
= decode_attr_space_free(xdr
, bitmap
, &fsstat
->fbytes
)) != 0)
4425 if ((status
= decode_attr_space_total(xdr
, bitmap
, &fsstat
->tbytes
)) != 0)
4428 status
= verify_attr_len(xdr
, savep
, attrlen
);
4430 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
4434 static int decode_pathconf(struct xdr_stream
*xdr
, struct nfs_pathconf
*pathconf
)
4437 uint32_t attrlen
, bitmap
[3] = {0};
4440 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
4442 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
4444 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
4447 if ((status
= decode_attr_maxlink(xdr
, bitmap
, &pathconf
->max_link
)) != 0)
4449 if ((status
= decode_attr_maxname(xdr
, bitmap
, &pathconf
->max_namelen
)) != 0)
4452 status
= verify_attr_len(xdr
, savep
, attrlen
);
4454 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
4458 static int decode_threshold_hint(struct xdr_stream
*xdr
,
4466 if (likely(bitmap
[0] & hint_bit
)) {
4467 p
= xdr_inline_decode(xdr
, 8);
4470 xdr_decode_hyper(p
, res
);
4474 print_overflow_msg(__func__
, xdr
);
4478 static int decode_first_threshold_item4(struct xdr_stream
*xdr
,
4479 struct nfs4_threshold
*res
)
4483 uint32_t bitmap
[3] = {0,}, attrlen
;
4487 p
= xdr_inline_decode(xdr
, 4);
4489 print_overflow_msg(__func__
, xdr
);
4492 res
->l_type
= be32_to_cpup(p
);
4494 /* thi_hintset bitmap */
4495 status
= decode_attr_bitmap(xdr
, bitmap
);
4499 /* thi_hintlist length */
4500 status
= decode_attr_length(xdr
, &attrlen
, &savep
);
4504 status
= decode_threshold_hint(xdr
, bitmap
, &res
->rd_sz
, THRESHOLD_RD
);
4507 status
= decode_threshold_hint(xdr
, bitmap
, &res
->wr_sz
, THRESHOLD_WR
);
4510 status
= decode_threshold_hint(xdr
, bitmap
, &res
->rd_io_sz
,
4514 status
= decode_threshold_hint(xdr
, bitmap
, &res
->wr_io_sz
,
4519 status
= verify_attr_len(xdr
, savep
, attrlen
);
4520 res
->bm
= bitmap
[0];
4522 dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n",
4523 __func__
, res
->bm
, res
->rd_sz
, res
->wr_sz
, res
->rd_io_sz
,
4526 dprintk("%s ret=%d!\n", __func__
, status
);
4531 * Thresholds on pNFS direct I/O vrs MDS I/O
4533 static int decode_attr_mdsthreshold(struct xdr_stream
*xdr
,
4535 struct nfs4_threshold
*res
)
4541 if (unlikely(bitmap
[2] & (FATTR4_WORD2_MDSTHRESHOLD
- 1U)))
4543 if (bitmap
[2] & FATTR4_WORD2_MDSTHRESHOLD
) {
4544 /* Did the server return an unrequested attribute? */
4545 if (unlikely(res
== NULL
))
4547 p
= xdr_inline_decode(xdr
, 4);
4550 num
= be32_to_cpup(p
);
4554 printk(KERN_INFO
"%s: Warning: Multiple pNFS layout "
4555 "drivers per filesystem not supported\n",
4558 status
= decode_first_threshold_item4(xdr
, res
);
4559 bitmap
[2] &= ~FATTR4_WORD2_MDSTHRESHOLD
;
4563 print_overflow_msg(__func__
, xdr
);
4567 static int decode_getfattr_attrs(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4568 struct nfs_fattr
*fattr
, struct nfs_fh
*fh
,
4569 struct nfs4_fs_locations
*fs_loc
, struct nfs4_label
*label
,
4570 const struct nfs_server
*server
)
4577 status
= decode_attr_type(xdr
, bitmap
, &type
);
4582 fattr
->mode
|= nfs_type2fmt
[type
];
4583 fattr
->valid
|= status
;
4586 status
= decode_attr_change(xdr
, bitmap
, &fattr
->change_attr
);
4589 fattr
->valid
|= status
;
4591 status
= decode_attr_size(xdr
, bitmap
, &fattr
->size
);
4594 fattr
->valid
|= status
;
4596 status
= decode_attr_fsid(xdr
, bitmap
, &fattr
->fsid
);
4599 fattr
->valid
|= status
;
4602 status
= decode_attr_error(xdr
, bitmap
, &err
);
4606 status
= decode_attr_filehandle(xdr
, bitmap
, fh
);
4610 status
= decode_attr_fileid(xdr
, bitmap
, &fattr
->fileid
);
4613 fattr
->valid
|= status
;
4615 status
= decode_attr_fs_locations(xdr
, bitmap
, fs_loc
);
4618 fattr
->valid
|= status
;
4621 if (unlikely(bitmap
[0]))
4624 status
= decode_attr_mode(xdr
, bitmap
, &fmode
);
4628 fattr
->mode
|= fmode
;
4629 fattr
->valid
|= status
;
4632 status
= decode_attr_nlink(xdr
, bitmap
, &fattr
->nlink
);
4635 fattr
->valid
|= status
;
4637 status
= decode_attr_owner(xdr
, bitmap
, server
, &fattr
->uid
, fattr
->owner_name
);
4640 fattr
->valid
|= status
;
4642 status
= decode_attr_group(xdr
, bitmap
, server
, &fattr
->gid
, fattr
->group_name
);
4645 fattr
->valid
|= status
;
4647 status
= decode_attr_rdev(xdr
, bitmap
, &fattr
->rdev
);
4650 fattr
->valid
|= status
;
4652 status
= decode_attr_space_used(xdr
, bitmap
, &fattr
->du
.nfs3
.used
);
4655 fattr
->valid
|= status
;
4657 status
= decode_attr_time_access(xdr
, bitmap
, &fattr
->atime
);
4660 fattr
->valid
|= status
;
4662 status
= decode_attr_time_metadata(xdr
, bitmap
, &fattr
->ctime
);
4665 fattr
->valid
|= status
;
4667 status
= decode_attr_time_modify(xdr
, bitmap
, &fattr
->mtime
);
4670 fattr
->valid
|= status
;
4672 status
= decode_attr_mounted_on_fileid(xdr
, bitmap
, &fattr
->mounted_on_fileid
);
4675 fattr
->valid
|= status
;
4678 if (unlikely(bitmap
[1]))
4681 status
= decode_attr_mdsthreshold(xdr
, bitmap
, fattr
->mdsthreshold
);
4686 status
= decode_attr_security_label(xdr
, bitmap
, label
);
4689 fattr
->valid
|= status
;
4693 dprintk("%s: xdr returned %d\n", __func__
, -status
);
4697 static int decode_getfattr_generic(struct xdr_stream
*xdr
, struct nfs_fattr
*fattr
,
4698 struct nfs_fh
*fh
, struct nfs4_fs_locations
*fs_loc
,
4699 struct nfs4_label
*label
, const struct nfs_server
*server
)
4706 status
= decode_op_hdr(xdr
, OP_GETATTR
);
4710 status
= decode_attr_bitmap(xdr
, bitmap
);
4714 status
= decode_attr_length(xdr
, &attrlen
, &savep
);
4718 status
= decode_getfattr_attrs(xdr
, bitmap
, fattr
, fh
, fs_loc
,
4723 status
= verify_attr_len(xdr
, savep
, attrlen
);
4725 dprintk("%s: xdr returned %d\n", __func__
, -status
);
4729 static int decode_getfattr_label(struct xdr_stream
*xdr
, struct nfs_fattr
*fattr
,
4730 struct nfs4_label
*label
, const struct nfs_server
*server
)
4732 return decode_getfattr_generic(xdr
, fattr
, NULL
, NULL
, label
, server
);
4735 static int decode_getfattr(struct xdr_stream
*xdr
, struct nfs_fattr
*fattr
,
4736 const struct nfs_server
*server
)
4738 return decode_getfattr_generic(xdr
, fattr
, NULL
, NULL
, NULL
, server
);
4742 * Decode potentially multiple layout types.
4744 static int decode_pnfs_layout_types(struct xdr_stream
*xdr
,
4745 struct nfs_fsinfo
*fsinfo
)
4750 p
= xdr_inline_decode(xdr
, 4);
4753 fsinfo
->nlayouttypes
= be32_to_cpup(p
);
4755 /* pNFS is not supported by the underlying file system */
4756 if (fsinfo
->nlayouttypes
== 0)
4759 /* Decode and set first layout type, move xdr->p past unused types */
4760 p
= xdr_inline_decode(xdr
, fsinfo
->nlayouttypes
* 4);
4764 /* If we get too many, then just cap it at the max */
4765 if (fsinfo
->nlayouttypes
> NFS_MAX_LAYOUT_TYPES
) {
4766 printk(KERN_INFO
"NFS: %s: Warning: Too many (%u) pNFS layout types\n",
4767 __func__
, fsinfo
->nlayouttypes
);
4768 fsinfo
->nlayouttypes
= NFS_MAX_LAYOUT_TYPES
;
4771 for(i
= 0; i
< fsinfo
->nlayouttypes
; ++i
)
4772 fsinfo
->layouttype
[i
] = be32_to_cpup(p
++);
4775 print_overflow_msg(__func__
, xdr
);
4780 * The type of file system exported.
4781 * Note we must ensure that layouttype is set in any non-error case.
4783 static int decode_attr_pnfstype(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4784 struct nfs_fsinfo
*fsinfo
)
4788 dprintk("%s: bitmap is %x\n", __func__
, bitmap
[1]);
4789 if (unlikely(bitmap
[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES
- 1U)))
4791 if (bitmap
[1] & FATTR4_WORD1_FS_LAYOUT_TYPES
) {
4792 status
= decode_pnfs_layout_types(xdr
, fsinfo
);
4793 bitmap
[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES
;
4799 * The prefered block size for layout directed io
4801 static int decode_attr_layout_blksize(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4806 dprintk("%s: bitmap is %x\n", __func__
, bitmap
[2]);
4808 if (bitmap
[2] & FATTR4_WORD2_LAYOUT_BLKSIZE
) {
4809 p
= xdr_inline_decode(xdr
, 4);
4811 print_overflow_msg(__func__
, xdr
);
4814 *res
= be32_to_cpup(p
);
4815 bitmap
[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE
;
4821 * The granularity of a CLONE operation.
4823 static int decode_attr_clone_blksize(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4828 dprintk("%s: bitmap is %x\n", __func__
, bitmap
[2]);
4830 if (bitmap
[2] & FATTR4_WORD2_CLONE_BLKSIZE
) {
4831 p
= xdr_inline_decode(xdr
, 4);
4833 print_overflow_msg(__func__
, xdr
);
4836 *res
= be32_to_cpup(p
);
4837 bitmap
[2] &= ~FATTR4_WORD2_CLONE_BLKSIZE
;
4842 static int decode_fsinfo(struct xdr_stream
*xdr
, struct nfs_fsinfo
*fsinfo
)
4845 uint32_t attrlen
, bitmap
[3];
4848 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
4850 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
4852 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
4855 fsinfo
->rtmult
= fsinfo
->wtmult
= 512; /* ??? */
4857 if ((status
= decode_attr_lease_time(xdr
, bitmap
, &fsinfo
->lease_time
)) != 0)
4859 if ((status
= decode_attr_maxfilesize(xdr
, bitmap
, &fsinfo
->maxfilesize
)) != 0)
4861 if ((status
= decode_attr_maxread(xdr
, bitmap
, &fsinfo
->rtmax
)) != 0)
4863 fsinfo
->rtpref
= fsinfo
->dtpref
= fsinfo
->rtmax
;
4864 if ((status
= decode_attr_maxwrite(xdr
, bitmap
, &fsinfo
->wtmax
)) != 0)
4866 fsinfo
->wtpref
= fsinfo
->wtmax
;
4869 if (unlikely(bitmap
[0]))
4872 status
= decode_attr_time_delta(xdr
, bitmap
, &fsinfo
->time_delta
);
4875 status
= decode_attr_pnfstype(xdr
, bitmap
, fsinfo
);
4880 if (unlikely(bitmap
[1]))
4883 status
= decode_attr_layout_blksize(xdr
, bitmap
, &fsinfo
->blksize
);
4886 status
= decode_attr_clone_blksize(xdr
, bitmap
, &fsinfo
->clone_blksize
);
4890 status
= verify_attr_len(xdr
, savep
, attrlen
);
4892 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
4896 static int decode_getfh(struct xdr_stream
*xdr
, struct nfs_fh
*fh
)
4902 /* Zero handle first to allow comparisons */
4903 memset(fh
, 0, sizeof(*fh
));
4905 status
= decode_op_hdr(xdr
, OP_GETFH
);
4909 p
= xdr_inline_decode(xdr
, 4);
4912 len
= be32_to_cpup(p
);
4913 if (len
> NFS4_FHSIZE
)
4916 p
= xdr_inline_decode(xdr
, len
);
4919 memcpy(fh
->data
, p
, len
);
4922 print_overflow_msg(__func__
, xdr
);
4926 static int decode_link(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
4930 status
= decode_op_hdr(xdr
, OP_LINK
);
4933 return decode_change_info(xdr
, cinfo
);
4937 * We create the owner, so we know a proper owner.id length is 4.
4939 static int decode_lock_denied (struct xdr_stream
*xdr
, struct file_lock
*fl
)
4941 uint64_t offset
, length
, clientid
;
4943 uint32_t namelen
, type
;
4945 p
= xdr_inline_decode(xdr
, 32); /* read 32 bytes */
4948 p
= xdr_decode_hyper(p
, &offset
); /* read 2 8-byte long words */
4949 p
= xdr_decode_hyper(p
, &length
);
4950 type
= be32_to_cpup(p
++); /* 4 byte read */
4951 if (fl
!= NULL
) { /* manipulate file lock */
4952 fl
->fl_start
= (loff_t
)offset
;
4953 fl
->fl_end
= fl
->fl_start
+ (loff_t
)length
- 1;
4954 if (length
== ~(uint64_t)0)
4955 fl
->fl_end
= OFFSET_MAX
;
4956 fl
->fl_type
= F_WRLCK
;
4958 fl
->fl_type
= F_RDLCK
;
4961 p
= xdr_decode_hyper(p
, &clientid
); /* read 8 bytes */
4962 namelen
= be32_to_cpup(p
); /* read 4 bytes */ /* have read all 32 bytes now */
4963 p
= xdr_inline_decode(xdr
, namelen
); /* variable size field */
4965 return -NFS4ERR_DENIED
;
4967 print_overflow_msg(__func__
, xdr
);
4971 static int decode_lock(struct xdr_stream
*xdr
, struct nfs_lock_res
*res
)
4975 status
= decode_op_hdr(xdr
, OP_LOCK
);
4979 status
= decode_lock_stateid(xdr
, &res
->stateid
);
4980 if (unlikely(status
))
4982 } else if (status
== -NFS4ERR_DENIED
)
4983 status
= decode_lock_denied(xdr
, NULL
);
4984 if (res
->open_seqid
!= NULL
)
4985 nfs_increment_open_seqid(status
, res
->open_seqid
);
4986 nfs_increment_lock_seqid(status
, res
->lock_seqid
);
4991 static int decode_lockt(struct xdr_stream
*xdr
, struct nfs_lockt_res
*res
)
4994 status
= decode_op_hdr(xdr
, OP_LOCKT
);
4995 if (status
== -NFS4ERR_DENIED
)
4996 return decode_lock_denied(xdr
, res
->denied
);
5000 static int decode_locku(struct xdr_stream
*xdr
, struct nfs_locku_res
*res
)
5004 status
= decode_op_hdr(xdr
, OP_LOCKU
);
5006 nfs_increment_lock_seqid(status
, res
->seqid
);
5008 status
= decode_lock_stateid(xdr
, &res
->stateid
);
5012 static int decode_release_lockowner(struct xdr_stream
*xdr
)
5014 return decode_op_hdr(xdr
, OP_RELEASE_LOCKOWNER
);
5017 static int decode_lookup(struct xdr_stream
*xdr
)
5019 return decode_op_hdr(xdr
, OP_LOOKUP
);
5022 /* This is too sick! */
5023 static int decode_space_limit(struct xdr_stream
*xdr
,
5024 unsigned long *pagemod_limit
)
5027 uint32_t limit_type
, nblocks
, blocksize
;
5030 p
= xdr_inline_decode(xdr
, 12);
5033 limit_type
= be32_to_cpup(p
++);
5034 switch (limit_type
) {
5035 case NFS4_LIMIT_SIZE
:
5036 xdr_decode_hyper(p
, &maxsize
);
5038 case NFS4_LIMIT_BLOCKS
:
5039 nblocks
= be32_to_cpup(p
++);
5040 blocksize
= be32_to_cpup(p
);
5041 maxsize
= (uint64_t)nblocks
* (uint64_t)blocksize
;
5043 maxsize
>>= PAGE_SHIFT
;
5044 *pagemod_limit
= min_t(u64
, maxsize
, ULONG_MAX
);
5047 print_overflow_msg(__func__
, xdr
);
5051 static int decode_rw_delegation(struct xdr_stream
*xdr
,
5052 uint32_t delegation_type
,
5053 struct nfs_openres
*res
)
5058 status
= decode_delegation_stateid(xdr
, &res
->delegation
);
5059 if (unlikely(status
))
5061 p
= xdr_inline_decode(xdr
, 4);
5064 res
->do_recall
= be32_to_cpup(p
);
5066 switch (delegation_type
) {
5067 case NFS4_OPEN_DELEGATE_READ
:
5068 res
->delegation_type
= FMODE_READ
;
5070 case NFS4_OPEN_DELEGATE_WRITE
:
5071 res
->delegation_type
= FMODE_WRITE
|FMODE_READ
;
5072 if (decode_space_limit(xdr
, &res
->pagemod_limit
) < 0)
5075 return decode_ace(xdr
, NULL
);
5077 print_overflow_msg(__func__
, xdr
);
5081 static int decode_no_delegation(struct xdr_stream
*xdr
, struct nfs_openres
*res
)
5084 uint32_t why_no_delegation
;
5086 p
= xdr_inline_decode(xdr
, 4);
5089 why_no_delegation
= be32_to_cpup(p
);
5090 switch (why_no_delegation
) {
5091 case WND4_CONTENTION
:
5093 xdr_inline_decode(xdr
, 4);
5094 /* Ignore for now */
5098 print_overflow_msg(__func__
, xdr
);
5102 static int decode_delegation(struct xdr_stream
*xdr
, struct nfs_openres
*res
)
5105 uint32_t delegation_type
;
5107 p
= xdr_inline_decode(xdr
, 4);
5110 delegation_type
= be32_to_cpup(p
);
5111 res
->delegation_type
= 0;
5112 switch (delegation_type
) {
5113 case NFS4_OPEN_DELEGATE_NONE
:
5115 case NFS4_OPEN_DELEGATE_READ
:
5116 case NFS4_OPEN_DELEGATE_WRITE
:
5117 return decode_rw_delegation(xdr
, delegation_type
, res
);
5118 case NFS4_OPEN_DELEGATE_NONE_EXT
:
5119 return decode_no_delegation(xdr
, res
);
5123 print_overflow_msg(__func__
, xdr
);
5127 static int decode_open(struct xdr_stream
*xdr
, struct nfs_openres
*res
)
5130 uint32_t savewords
, bmlen
, i
;
5133 if (!__decode_op_hdr(xdr
, OP_OPEN
, &status
))
5135 nfs_increment_open_seqid(status
, res
->seqid
);
5138 status
= decode_open_stateid(xdr
, &res
->stateid
);
5139 if (unlikely(status
))
5142 decode_change_info(xdr
, &res
->cinfo
);
5144 p
= xdr_inline_decode(xdr
, 8);
5147 res
->rflags
= be32_to_cpup(p
++);
5148 bmlen
= be32_to_cpup(p
);
5152 p
= xdr_inline_decode(xdr
, bmlen
<< 2);
5155 savewords
= min_t(uint32_t, bmlen
, NFS4_BITMAP_SIZE
);
5156 for (i
= 0; i
< savewords
; ++i
)
5157 res
->attrset
[i
] = be32_to_cpup(p
++);
5158 for (; i
< NFS4_BITMAP_SIZE
; i
++)
5159 res
->attrset
[i
] = 0;
5161 return decode_delegation(xdr
, res
);
5163 dprintk("%s: Bitmap too large! Length = %u\n", __func__
, bmlen
);
5166 print_overflow_msg(__func__
, xdr
);
5170 static int decode_open_confirm(struct xdr_stream
*xdr
, struct nfs_open_confirmres
*res
)
5174 status
= decode_op_hdr(xdr
, OP_OPEN_CONFIRM
);
5176 nfs_increment_open_seqid(status
, res
->seqid
);
5178 status
= decode_open_stateid(xdr
, &res
->stateid
);
5182 static int decode_open_downgrade(struct xdr_stream
*xdr
, struct nfs_closeres
*res
)
5186 status
= decode_op_hdr(xdr
, OP_OPEN_DOWNGRADE
);
5188 nfs_increment_open_seqid(status
, res
->seqid
);
5190 status
= decode_open_stateid(xdr
, &res
->stateid
);
5194 static int decode_putfh(struct xdr_stream
*xdr
)
5196 return decode_op_hdr(xdr
, OP_PUTFH
);
5199 static int decode_putrootfh(struct xdr_stream
*xdr
)
5201 return decode_op_hdr(xdr
, OP_PUTROOTFH
);
5204 static int decode_read(struct xdr_stream
*xdr
, struct rpc_rqst
*req
,
5205 struct nfs_pgio_res
*res
)
5208 uint32_t count
, eof
, recvd
;
5211 status
= decode_op_hdr(xdr
, OP_READ
);
5214 p
= xdr_inline_decode(xdr
, 8);
5217 eof
= be32_to_cpup(p
++);
5218 count
= be32_to_cpup(p
);
5219 recvd
= xdr_read_pages(xdr
, count
);
5220 if (count
> recvd
) {
5221 dprintk("NFS: server cheating in read reply: "
5222 "count %u > recvd %u\n", count
, recvd
);
5230 print_overflow_msg(__func__
, xdr
);
5234 static int decode_readdir(struct xdr_stream
*xdr
, struct rpc_rqst
*req
, struct nfs4_readdir_res
*readdir
)
5239 status
= decode_op_hdr(xdr
, OP_READDIR
);
5241 status
= decode_verifier(xdr
, readdir
->verifier
.data
);
5242 if (unlikely(status
))
5244 memcpy(verf
, readdir
->verifier
.data
, sizeof(verf
));
5245 dprintk("%s: verifier = %08x:%08x\n",
5246 __func__
, verf
[0], verf
[1]);
5247 return xdr_read_pages(xdr
, xdr
->buf
->page_len
);
5250 static int decode_readlink(struct xdr_stream
*xdr
, struct rpc_rqst
*req
)
5252 struct xdr_buf
*rcvbuf
= &req
->rq_rcv_buf
;
5257 status
= decode_op_hdr(xdr
, OP_READLINK
);
5261 /* Convert length of symlink */
5262 p
= xdr_inline_decode(xdr
, 4);
5265 len
= be32_to_cpup(p
);
5266 if (len
>= rcvbuf
->page_len
|| len
<= 0) {
5267 dprintk("nfs: server returned giant symlink!\n");
5268 return -ENAMETOOLONG
;
5270 recvd
= xdr_read_pages(xdr
, len
);
5272 dprintk("NFS: server cheating in readlink reply: "
5273 "count %u > recvd %u\n", len
, recvd
);
5277 * The XDR encode routine has set things up so that
5278 * the link text will be copied directly into the
5279 * buffer. We just have to do overflow-checking,
5280 * and and null-terminate the text (the VFS expects
5281 * null-termination).
5283 xdr_terminate_string(rcvbuf
, len
);
5286 print_overflow_msg(__func__
, xdr
);
5290 static int decode_remove(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
5294 status
= decode_op_hdr(xdr
, OP_REMOVE
);
5297 status
= decode_change_info(xdr
, cinfo
);
5302 static int decode_rename(struct xdr_stream
*xdr
, struct nfs4_change_info
*old_cinfo
,
5303 struct nfs4_change_info
*new_cinfo
)
5307 status
= decode_op_hdr(xdr
, OP_RENAME
);
5310 if ((status
= decode_change_info(xdr
, old_cinfo
)))
5312 status
= decode_change_info(xdr
, new_cinfo
);
5317 static int decode_renew(struct xdr_stream
*xdr
)
5319 return decode_op_hdr(xdr
, OP_RENEW
);
5323 decode_restorefh(struct xdr_stream
*xdr
)
5325 return decode_op_hdr(xdr
, OP_RESTOREFH
);
5328 static int decode_getacl(struct xdr_stream
*xdr
, struct rpc_rqst
*req
,
5329 struct nfs_getaclres
*res
)
5335 unsigned int pg_offset
;
5338 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
5341 xdr_enter_page(xdr
, xdr
->buf
->page_len
);
5343 /* Calculate the offset of the page data */
5344 pg_offset
= xdr
->buf
->head
[0].iov_len
;
5346 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
5348 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
5351 if (unlikely(bitmap
[0] & (FATTR4_WORD0_ACL
- 1U)))
5353 if (likely(bitmap
[0] & FATTR4_WORD0_ACL
)) {
5355 /* The bitmap (xdr len + bitmaps) and the attr xdr len words
5356 * are stored with the acl data to handle the problem of
5357 * variable length bitmaps.*/
5358 res
->acl_data_offset
= xdr_stream_pos(xdr
) - pg_offset
;
5359 res
->acl_len
= attrlen
;
5361 /* Check for receive buffer overflow */
5362 if (res
->acl_len
> (xdr
->nwords
<< 2) ||
5363 res
->acl_len
+ res
->acl_data_offset
> xdr
->buf
->page_len
) {
5364 res
->acl_flags
|= NFS4_ACL_TRUNC
;
5365 dprintk("NFS: acl reply: attrlen %u > page_len %u\n",
5366 attrlen
, xdr
->nwords
<< 2);
5369 status
= -EOPNOTSUPP
;
5376 decode_savefh(struct xdr_stream
*xdr
)
5378 return decode_op_hdr(xdr
, OP_SAVEFH
);
5381 static int decode_setattr(struct xdr_stream
*xdr
)
5387 status
= decode_op_hdr(xdr
, OP_SETATTR
);
5390 p
= xdr_inline_decode(xdr
, 4);
5393 bmlen
= be32_to_cpup(p
);
5394 p
= xdr_inline_decode(xdr
, bmlen
<< 2);
5398 print_overflow_msg(__func__
, xdr
);
5402 static int decode_setclientid(struct xdr_stream
*xdr
, struct nfs4_setclientid_res
*res
)
5408 p
= xdr_inline_decode(xdr
, 8);
5411 opnum
= be32_to_cpup(p
++);
5412 if (opnum
!= OP_SETCLIENTID
) {
5413 dprintk("nfs: decode_setclientid: Server returned operation"
5417 nfserr
= be32_to_cpup(p
);
5418 if (nfserr
== NFS_OK
) {
5419 p
= xdr_inline_decode(xdr
, 8 + NFS4_VERIFIER_SIZE
);
5422 p
= xdr_decode_hyper(p
, &res
->clientid
);
5423 memcpy(res
->confirm
.data
, p
, NFS4_VERIFIER_SIZE
);
5424 } else if (nfserr
== NFSERR_CLID_INUSE
) {
5427 /* skip netid string */
5428 p
= xdr_inline_decode(xdr
, 4);
5431 len
= be32_to_cpup(p
);
5432 p
= xdr_inline_decode(xdr
, len
);
5436 /* skip uaddr string */
5437 p
= xdr_inline_decode(xdr
, 4);
5440 len
= be32_to_cpup(p
);
5441 p
= xdr_inline_decode(xdr
, len
);
5444 return -NFSERR_CLID_INUSE
;
5446 return nfs4_stat_to_errno(nfserr
);
5450 print_overflow_msg(__func__
, xdr
);
5454 static int decode_setclientid_confirm(struct xdr_stream
*xdr
)
5456 return decode_op_hdr(xdr
, OP_SETCLIENTID_CONFIRM
);
5459 static int decode_write(struct xdr_stream
*xdr
, struct nfs_pgio_res
*res
)
5464 status
= decode_op_hdr(xdr
, OP_WRITE
);
5468 p
= xdr_inline_decode(xdr
, 8);
5471 res
->count
= be32_to_cpup(p
++);
5472 res
->verf
->committed
= be32_to_cpup(p
++);
5473 return decode_write_verifier(xdr
, &res
->verf
->verifier
);
5475 print_overflow_msg(__func__
, xdr
);
5479 static int decode_delegreturn(struct xdr_stream
*xdr
)
5481 return decode_op_hdr(xdr
, OP_DELEGRETURN
);
5484 static int decode_secinfo_gss(struct xdr_stream
*xdr
,
5485 struct nfs4_secinfo4
*flavor
)
5490 p
= xdr_inline_decode(xdr
, 4);
5493 oid_len
= be32_to_cpup(p
);
5494 if (oid_len
> GSS_OID_MAX_LEN
)
5497 p
= xdr_inline_decode(xdr
, oid_len
);
5500 memcpy(flavor
->flavor_info
.oid
.data
, p
, oid_len
);
5501 flavor
->flavor_info
.oid
.len
= oid_len
;
5503 p
= xdr_inline_decode(xdr
, 8);
5506 flavor
->flavor_info
.qop
= be32_to_cpup(p
++);
5507 flavor
->flavor_info
.service
= be32_to_cpup(p
);
5512 print_overflow_msg(__func__
, xdr
);
5518 static int decode_secinfo_common(struct xdr_stream
*xdr
, struct nfs4_secinfo_res
*res
)
5520 struct nfs4_secinfo4
*sec_flavor
;
5521 unsigned int i
, num_flavors
;
5525 p
= xdr_inline_decode(xdr
, 4);
5529 res
->flavors
->num_flavors
= 0;
5530 num_flavors
= be32_to_cpup(p
);
5532 for (i
= 0; i
< num_flavors
; i
++) {
5533 sec_flavor
= &res
->flavors
->flavors
[i
];
5534 if ((char *)&sec_flavor
[1] - (char *)res
->flavors
> PAGE_SIZE
)
5537 p
= xdr_inline_decode(xdr
, 4);
5540 sec_flavor
->flavor
= be32_to_cpup(p
);
5542 if (sec_flavor
->flavor
== RPC_AUTH_GSS
) {
5543 status
= decode_secinfo_gss(xdr
, sec_flavor
);
5547 res
->flavors
->num_flavors
++;
5554 print_overflow_msg(__func__
, xdr
);
5558 static int decode_secinfo(struct xdr_stream
*xdr
, struct nfs4_secinfo_res
*res
)
5560 int status
= decode_op_hdr(xdr
, OP_SECINFO
);
5563 return decode_secinfo_common(xdr
, res
);
5566 #if defined(CONFIG_NFS_V4_1)
5567 static int decode_secinfo_no_name(struct xdr_stream
*xdr
, struct nfs4_secinfo_res
*res
)
5569 int status
= decode_op_hdr(xdr
, OP_SECINFO_NO_NAME
);
5572 return decode_secinfo_common(xdr
, res
);
5575 static int decode_op_map(struct xdr_stream
*xdr
, struct nfs4_op_map
*op_map
)
5578 uint32_t bitmap_words
;
5581 p
= xdr_inline_decode(xdr
, 4);
5582 bitmap_words
= be32_to_cpup(p
++);
5583 if (bitmap_words
> NFS4_OP_MAP_NUM_WORDS
)
5585 p
= xdr_inline_decode(xdr
, 4 * bitmap_words
);
5586 for (i
= 0; i
< bitmap_words
; i
++)
5587 op_map
->u
.words
[i
] = be32_to_cpup(p
++);
5592 static int decode_exchange_id(struct xdr_stream
*xdr
,
5593 struct nfs41_exchange_id_res
*res
)
5599 uint32_t impl_id_count
;
5601 status
= decode_op_hdr(xdr
, OP_EXCHANGE_ID
);
5605 p
= xdr_inline_decode(xdr
, 8);
5608 xdr_decode_hyper(p
, &res
->clientid
);
5609 p
= xdr_inline_decode(xdr
, 12);
5612 res
->seqid
= be32_to_cpup(p
++);
5613 res
->flags
= be32_to_cpup(p
++);
5615 res
->state_protect
.how
= be32_to_cpup(p
);
5616 switch (res
->state_protect
.how
) {
5620 status
= decode_op_map(xdr
, &res
->state_protect
.enforce
);
5623 status
= decode_op_map(xdr
, &res
->state_protect
.allow
);
5632 /* server_owner4.so_minor_id */
5633 p
= xdr_inline_decode(xdr
, 8);
5636 p
= xdr_decode_hyper(p
, &res
->server_owner
->minor_id
);
5638 /* server_owner4.so_major_id */
5639 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
5640 if (unlikely(status
))
5642 memcpy(res
->server_owner
->major_id
, dummy_str
, dummy
);
5643 res
->server_owner
->major_id_sz
= dummy
;
5646 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
5647 if (unlikely(status
))
5649 memcpy(res
->server_scope
->server_scope
, dummy_str
, dummy
);
5650 res
->server_scope
->server_scope_sz
= dummy
;
5652 /* Implementation Id */
5653 p
= xdr_inline_decode(xdr
, 4);
5656 impl_id_count
= be32_to_cpup(p
++);
5658 if (impl_id_count
) {
5660 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
5661 if (unlikely(status
))
5663 memcpy(res
->impl_id
->domain
, dummy_str
, dummy
);
5666 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
5667 if (unlikely(status
))
5669 memcpy(res
->impl_id
->name
, dummy_str
, dummy
);
5672 p
= xdr_inline_decode(xdr
, 12);
5675 p
= xdr_decode_hyper(p
, &res
->impl_id
->date
.seconds
);
5676 res
->impl_id
->date
.nseconds
= be32_to_cpup(p
);
5678 /* if there's more than one entry, ignore the rest */
5682 print_overflow_msg(__func__
, xdr
);
5686 static int decode_chan_attrs(struct xdr_stream
*xdr
,
5687 struct nfs4_channel_attrs
*attrs
)
5692 p
= xdr_inline_decode(xdr
, 28);
5695 val
= be32_to_cpup(p
++); /* headerpadsz */
5697 return -EINVAL
; /* no support for header padding yet */
5698 attrs
->max_rqst_sz
= be32_to_cpup(p
++);
5699 attrs
->max_resp_sz
= be32_to_cpup(p
++);
5700 attrs
->max_resp_sz_cached
= be32_to_cpup(p
++);
5701 attrs
->max_ops
= be32_to_cpup(p
++);
5702 attrs
->max_reqs
= be32_to_cpup(p
++);
5703 nr_attrs
= be32_to_cpup(p
);
5704 if (unlikely(nr_attrs
> 1)) {
5705 printk(KERN_WARNING
"NFS: %s: Invalid rdma channel attrs "
5706 "count %u\n", __func__
, nr_attrs
);
5709 if (nr_attrs
== 1) {
5710 p
= xdr_inline_decode(xdr
, 4); /* skip rdma_attrs */
5716 print_overflow_msg(__func__
, xdr
);
5720 static int decode_sessionid(struct xdr_stream
*xdr
, struct nfs4_sessionid
*sid
)
5722 return decode_opaque_fixed(xdr
, sid
->data
, NFS4_MAX_SESSIONID_LEN
);
5725 static int decode_bind_conn_to_session(struct xdr_stream
*xdr
,
5726 struct nfs41_bind_conn_to_session_res
*res
)
5731 status
= decode_op_hdr(xdr
, OP_BIND_CONN_TO_SESSION
);
5733 status
= decode_sessionid(xdr
, &res
->sessionid
);
5734 if (unlikely(status
))
5737 /* dir flags, rdma mode bool */
5738 p
= xdr_inline_decode(xdr
, 8);
5742 res
->dir
= be32_to_cpup(p
++);
5743 if (res
->dir
== 0 || res
->dir
> NFS4_CDFS4_BOTH
)
5745 if (be32_to_cpup(p
) == 0)
5746 res
->use_conn_in_rdma_mode
= false;
5748 res
->use_conn_in_rdma_mode
= true;
5752 print_overflow_msg(__func__
, xdr
);
5756 static int decode_create_session(struct xdr_stream
*xdr
,
5757 struct nfs41_create_session_res
*res
)
5762 status
= decode_op_hdr(xdr
, OP_CREATE_SESSION
);
5764 status
= decode_sessionid(xdr
, &res
->sessionid
);
5765 if (unlikely(status
))
5769 p
= xdr_inline_decode(xdr
, 8);
5772 res
->seqid
= be32_to_cpup(p
++);
5773 res
->flags
= be32_to_cpup(p
);
5775 /* Channel attributes */
5776 status
= decode_chan_attrs(xdr
, &res
->fc_attrs
);
5778 status
= decode_chan_attrs(xdr
, &res
->bc_attrs
);
5781 print_overflow_msg(__func__
, xdr
);
5785 static int decode_destroy_session(struct xdr_stream
*xdr
, void *dummy
)
5787 return decode_op_hdr(xdr
, OP_DESTROY_SESSION
);
5790 static int decode_destroy_clientid(struct xdr_stream
*xdr
, void *dummy
)
5792 return decode_op_hdr(xdr
, OP_DESTROY_CLIENTID
);
5795 static int decode_reclaim_complete(struct xdr_stream
*xdr
, void *dummy
)
5797 return decode_op_hdr(xdr
, OP_RECLAIM_COMPLETE
);
5799 #endif /* CONFIG_NFS_V4_1 */
5801 static int decode_sequence(struct xdr_stream
*xdr
,
5802 struct nfs4_sequence_res
*res
,
5803 struct rpc_rqst
*rqstp
)
5805 #if defined(CONFIG_NFS_V4_1)
5806 struct nfs4_session
*session
;
5807 struct nfs4_sessionid id
;
5812 if (res
->sr_slot
== NULL
)
5814 if (!res
->sr_slot
->table
->session
)
5817 status
= decode_op_hdr(xdr
, OP_SEQUENCE
);
5819 status
= decode_sessionid(xdr
, &id
);
5820 if (unlikely(status
))
5824 * If the server returns different values for sessionID, slotID or
5825 * sequence number, the server is looney tunes.
5827 status
= -EREMOTEIO
;
5828 session
= res
->sr_slot
->table
->session
;
5830 if (memcmp(id
.data
, session
->sess_id
.data
,
5831 NFS4_MAX_SESSIONID_LEN
)) {
5832 dprintk("%s Invalid session id\n", __func__
);
5836 p
= xdr_inline_decode(xdr
, 20);
5841 dummy
= be32_to_cpup(p
++);
5842 if (dummy
!= res
->sr_slot
->seq_nr
) {
5843 dprintk("%s Invalid sequence number\n", __func__
);
5847 dummy
= be32_to_cpup(p
++);
5848 if (dummy
!= res
->sr_slot
->slot_nr
) {
5849 dprintk("%s Invalid slot id\n", __func__
);
5852 /* highest slot id */
5853 res
->sr_highest_slotid
= be32_to_cpup(p
++);
5854 /* target highest slot id */
5855 res
->sr_target_highest_slotid
= be32_to_cpup(p
++);
5857 res
->sr_status_flags
= be32_to_cpup(p
);
5860 res
->sr_status
= status
;
5863 print_overflow_msg(__func__
, xdr
);
5866 #else /* CONFIG_NFS_V4_1 */
5868 #endif /* CONFIG_NFS_V4_1 */
5871 #if defined(CONFIG_NFS_V4_1)
5872 static int decode_layout_stateid(struct xdr_stream
*xdr
, nfs4_stateid
*stateid
)
5874 stateid
->type
= NFS4_LAYOUT_STATEID_TYPE
;
5875 return decode_stateid(xdr
, stateid
);
5878 static int decode_getdeviceinfo(struct xdr_stream
*xdr
,
5879 struct nfs4_getdeviceinfo_res
*res
)
5881 struct pnfs_device
*pdev
= res
->pdev
;
5886 status
= decode_op_hdr(xdr
, OP_GETDEVICEINFO
);
5888 if (status
== -ETOOSMALL
) {
5889 p
= xdr_inline_decode(xdr
, 4);
5892 pdev
->mincount
= be32_to_cpup(p
);
5893 dprintk("%s: Min count too small. mincnt = %u\n",
5894 __func__
, pdev
->mincount
);
5899 p
= xdr_inline_decode(xdr
, 8);
5902 type
= be32_to_cpup(p
++);
5903 if (type
!= pdev
->layout_type
) {
5904 dprintk("%s: layout mismatch req: %u pdev: %u\n",
5905 __func__
, pdev
->layout_type
, type
);
5909 * Get the length of the opaque device_addr4. xdr_read_pages places
5910 * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages)
5911 * and places the remaining xdr data in xdr_buf->tail
5913 pdev
->mincount
= be32_to_cpup(p
);
5914 if (xdr_read_pages(xdr
, pdev
->mincount
) != pdev
->mincount
)
5917 /* Parse notification bitmap, verifying that it is zero. */
5918 p
= xdr_inline_decode(xdr
, 4);
5921 len
= be32_to_cpup(p
);
5925 p
= xdr_inline_decode(xdr
, 4 * len
);
5929 res
->notification
= be32_to_cpup(p
++);
5930 for (i
= 1; i
< len
; i
++) {
5931 if (be32_to_cpup(p
++)) {
5932 dprintk("%s: unsupported notification\n",
5940 print_overflow_msg(__func__
, xdr
);
5944 static int decode_layoutget(struct xdr_stream
*xdr
, struct rpc_rqst
*req
,
5945 struct nfs4_layoutget_res
*res
)
5952 status
= decode_op_hdr(xdr
, OP_LAYOUTGET
);
5955 p
= xdr_inline_decode(xdr
, 4);
5958 res
->return_on_close
= be32_to_cpup(p
);
5959 decode_layout_stateid(xdr
, &res
->stateid
);
5960 p
= xdr_inline_decode(xdr
, 4);
5963 layout_count
= be32_to_cpup(p
);
5964 if (!layout_count
) {
5965 dprintk("%s: server responded with empty layout array\n",
5970 p
= xdr_inline_decode(xdr
, 28);
5973 p
= xdr_decode_hyper(p
, &res
->range
.offset
);
5974 p
= xdr_decode_hyper(p
, &res
->range
.length
);
5975 res
->range
.iomode
= be32_to_cpup(p
++);
5976 res
->type
= be32_to_cpup(p
++);
5977 res
->layoutp
->len
= be32_to_cpup(p
);
5979 dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n",
5981 (unsigned long)res
->range
.offset
,
5982 (unsigned long)res
->range
.length
,
5987 recvd
= xdr_read_pages(xdr
, res
->layoutp
->len
);
5988 if (res
->layoutp
->len
> recvd
) {
5989 dprintk("NFS: server cheating in layoutget reply: "
5990 "layout len %u > recvd %u\n",
5991 res
->layoutp
->len
, recvd
);
5995 if (layout_count
> 1) {
5996 /* We only handle a length one array at the moment. Any
5997 * further entries are just ignored. Note that this means
5998 * the client may see a response that is less than the
5999 * minimum it requested.
6001 dprintk("%s: server responded with %d layouts, dropping tail\n",
6002 __func__
, layout_count
);
6007 print_overflow_msg(__func__
, xdr
);
6011 static int decode_layoutreturn(struct xdr_stream
*xdr
,
6012 struct nfs4_layoutreturn_res
*res
)
6017 status
= decode_op_hdr(xdr
, OP_LAYOUTRETURN
);
6020 p
= xdr_inline_decode(xdr
, 4);
6023 res
->lrs_present
= be32_to_cpup(p
);
6024 if (res
->lrs_present
)
6025 status
= decode_layout_stateid(xdr
, &res
->stateid
);
6028 print_overflow_msg(__func__
, xdr
);
6032 static int decode_layoutcommit(struct xdr_stream
*xdr
,
6033 struct rpc_rqst
*req
,
6034 struct nfs4_layoutcommit_res
*res
)
6040 status
= decode_op_hdr(xdr
, OP_LAYOUTCOMMIT
);
6041 res
->status
= status
;
6045 p
= xdr_inline_decode(xdr
, 4);
6048 sizechanged
= be32_to_cpup(p
);
6051 /* throw away new size */
6052 p
= xdr_inline_decode(xdr
, 8);
6058 print_overflow_msg(__func__
, xdr
);
6062 static int decode_test_stateid(struct xdr_stream
*xdr
,
6063 struct nfs41_test_stateid_res
*res
)
6069 status
= decode_op_hdr(xdr
, OP_TEST_STATEID
);
6073 p
= xdr_inline_decode(xdr
, 4);
6076 num_res
= be32_to_cpup(p
++);
6080 p
= xdr_inline_decode(xdr
, 4);
6083 res
->status
= be32_to_cpup(p
++);
6087 print_overflow_msg(__func__
, xdr
);
6092 static int decode_free_stateid(struct xdr_stream
*xdr
,
6093 struct nfs41_free_stateid_res
*res
)
6095 res
->status
= decode_op_hdr(xdr
, OP_FREE_STATEID
);
6100 int decode_layoutreturn(struct xdr_stream
*xdr
,
6101 struct nfs4_layoutreturn_res
*res
)
6105 #endif /* CONFIG_NFS_V4_1 */
6108 * END OF "GENERIC" DECODE ROUTINES.
6112 * Decode OPEN_DOWNGRADE response
6114 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst
*rqstp
,
6115 struct xdr_stream
*xdr
,
6116 struct nfs_closeres
*res
)
6118 struct compound_hdr hdr
;
6121 status
= decode_compound_hdr(xdr
, &hdr
);
6124 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6127 status
= decode_putfh(xdr
);
6131 status
= decode_layoutreturn(xdr
, res
->lr_res
);
6132 res
->lr_ret
= status
;
6136 status
= decode_open_downgrade(xdr
, res
);
6142 * Decode ACCESS response
6144 static int nfs4_xdr_dec_access(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6145 struct nfs4_accessres
*res
)
6147 struct compound_hdr hdr
;
6150 status
= decode_compound_hdr(xdr
, &hdr
);
6153 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6156 status
= decode_putfh(xdr
);
6159 status
= decode_access(xdr
, &res
->supported
, &res
->access
);
6162 decode_getfattr(xdr
, res
->fattr
, res
->server
);
6168 * Decode LOOKUP response
6170 static int nfs4_xdr_dec_lookup(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6171 struct nfs4_lookup_res
*res
)
6173 struct compound_hdr hdr
;
6176 status
= decode_compound_hdr(xdr
, &hdr
);
6179 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6182 status
= decode_putfh(xdr
);
6185 status
= decode_lookup(xdr
);
6188 status
= decode_getfh(xdr
, res
->fh
);
6191 status
= decode_getfattr_label(xdr
, res
->fattr
, res
->label
, res
->server
);
6197 * Decode LOOKUP_ROOT response
6199 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst
*rqstp
,
6200 struct xdr_stream
*xdr
,
6201 struct nfs4_lookup_res
*res
)
6203 struct compound_hdr hdr
;
6206 status
= decode_compound_hdr(xdr
, &hdr
);
6209 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6212 status
= decode_putrootfh(xdr
);
6215 status
= decode_getfh(xdr
, res
->fh
);
6217 status
= decode_getfattr_label(xdr
, res
->fattr
,
6218 res
->label
, res
->server
);
6224 * Decode REMOVE response
6226 static int nfs4_xdr_dec_remove(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6227 struct nfs_removeres
*res
)
6229 struct compound_hdr hdr
;
6232 status
= decode_compound_hdr(xdr
, &hdr
);
6235 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6238 status
= decode_putfh(xdr
);
6241 status
= decode_remove(xdr
, &res
->cinfo
);
6247 * Decode RENAME response
6249 static int nfs4_xdr_dec_rename(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6250 struct nfs_renameres
*res
)
6252 struct compound_hdr hdr
;
6255 status
= decode_compound_hdr(xdr
, &hdr
);
6258 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6261 status
= decode_putfh(xdr
);
6264 status
= decode_savefh(xdr
);
6267 status
= decode_putfh(xdr
);
6270 status
= decode_rename(xdr
, &res
->old_cinfo
, &res
->new_cinfo
);
6276 * Decode LINK response
6278 static int nfs4_xdr_dec_link(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6279 struct nfs4_link_res
*res
)
6281 struct compound_hdr hdr
;
6284 status
= decode_compound_hdr(xdr
, &hdr
);
6287 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6290 status
= decode_putfh(xdr
);
6293 status
= decode_savefh(xdr
);
6296 status
= decode_putfh(xdr
);
6299 status
= decode_link(xdr
, &res
->cinfo
);
6303 * Note order: OP_LINK leaves the directory as the current
6306 status
= decode_restorefh(xdr
);
6309 decode_getfattr_label(xdr
, res
->fattr
, res
->label
, res
->server
);
6315 * Decode CREATE response
6317 static int nfs4_xdr_dec_create(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6318 struct nfs4_create_res
*res
)
6320 struct compound_hdr hdr
;
6323 status
= decode_compound_hdr(xdr
, &hdr
);
6326 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6329 status
= decode_putfh(xdr
);
6332 status
= decode_create(xdr
, &res
->dir_cinfo
);
6335 status
= decode_getfh(xdr
, res
->fh
);
6338 decode_getfattr_label(xdr
, res
->fattr
, res
->label
, res
->server
);
6344 * Decode SYMLINK response
6346 static int nfs4_xdr_dec_symlink(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6347 struct nfs4_create_res
*res
)
6349 return nfs4_xdr_dec_create(rqstp
, xdr
, res
);
6353 * Decode GETATTR response
6355 static int nfs4_xdr_dec_getattr(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6356 struct nfs4_getattr_res
*res
)
6358 struct compound_hdr hdr
;
6361 status
= decode_compound_hdr(xdr
, &hdr
);
6364 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6367 status
= decode_putfh(xdr
);
6370 status
= decode_getfattr_label(xdr
, res
->fattr
, res
->label
, res
->server
);
6376 * Encode an SETACL request
6378 static void nfs4_xdr_enc_setacl(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
6379 struct nfs_setaclargs
*args
)
6381 struct compound_hdr hdr
= {
6382 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
6385 encode_compound_hdr(xdr
, req
, &hdr
);
6386 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
6387 encode_putfh(xdr
, args
->fh
, &hdr
);
6388 encode_setacl(xdr
, args
, &hdr
);
6393 * Decode SETACL response
6396 nfs4_xdr_dec_setacl(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6397 struct nfs_setaclres
*res
)
6399 struct compound_hdr hdr
;
6402 status
= decode_compound_hdr(xdr
, &hdr
);
6405 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6408 status
= decode_putfh(xdr
);
6411 status
= decode_setattr(xdr
);
6417 * Decode GETACL response
6420 nfs4_xdr_dec_getacl(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6421 struct nfs_getaclres
*res
)
6423 struct compound_hdr hdr
;
6426 if (res
->acl_scratch
!= NULL
) {
6427 void *p
= page_address(res
->acl_scratch
);
6428 xdr_set_scratch_buffer(xdr
, p
, PAGE_SIZE
);
6430 status
= decode_compound_hdr(xdr
, &hdr
);
6433 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6436 status
= decode_putfh(xdr
);
6439 status
= decode_getacl(xdr
, rqstp
, res
);
6446 * Decode CLOSE response
6448 static int nfs4_xdr_dec_close(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6449 struct nfs_closeres
*res
)
6451 struct compound_hdr hdr
;
6454 status
= decode_compound_hdr(xdr
, &hdr
);
6457 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6460 status
= decode_putfh(xdr
);
6464 status
= decode_layoutreturn(xdr
, res
->lr_res
);
6465 res
->lr_ret
= status
;
6469 if (res
->fattr
!= NULL
) {
6470 status
= decode_getfattr(xdr
, res
->fattr
, res
->server
);
6474 status
= decode_close(xdr
, res
);
6480 * Decode OPEN response
6482 static int nfs4_xdr_dec_open(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6483 struct nfs_openres
*res
)
6485 struct compound_hdr hdr
;
6488 status
= decode_compound_hdr(xdr
, &hdr
);
6491 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6494 status
= decode_putfh(xdr
);
6497 status
= decode_open(xdr
, res
);
6500 status
= decode_getfh(xdr
, &res
->fh
);
6503 if (res
->access_request
)
6504 decode_access(xdr
, &res
->access_supported
, &res
->access_result
);
6505 decode_getfattr_label(xdr
, res
->f_attr
, res
->f_label
, res
->server
);
6511 * Decode OPEN_CONFIRM response
6513 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst
*rqstp
,
6514 struct xdr_stream
*xdr
,
6515 struct nfs_open_confirmres
*res
)
6517 struct compound_hdr hdr
;
6520 status
= decode_compound_hdr(xdr
, &hdr
);
6523 status
= decode_putfh(xdr
);
6526 status
= decode_open_confirm(xdr
, res
);
6532 * Decode OPEN response
6534 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst
*rqstp
,
6535 struct xdr_stream
*xdr
,
6536 struct nfs_openres
*res
)
6538 struct compound_hdr hdr
;
6541 status
= decode_compound_hdr(xdr
, &hdr
);
6544 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6547 status
= decode_putfh(xdr
);
6550 status
= decode_open(xdr
, res
);
6553 if (res
->access_request
)
6554 decode_access(xdr
, &res
->access_supported
, &res
->access_result
);
6555 decode_getfattr(xdr
, res
->f_attr
, res
->server
);
6561 * Decode SETATTR response
6563 static int nfs4_xdr_dec_setattr(struct rpc_rqst
*rqstp
,
6564 struct xdr_stream
*xdr
,
6565 struct nfs_setattrres
*res
)
6567 struct compound_hdr hdr
;
6570 status
= decode_compound_hdr(xdr
, &hdr
);
6573 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6576 status
= decode_putfh(xdr
);
6579 status
= decode_setattr(xdr
);
6582 decode_getfattr_label(xdr
, res
->fattr
, res
->label
, res
->server
);
6588 * Decode LOCK response
6590 static int nfs4_xdr_dec_lock(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6591 struct nfs_lock_res
*res
)
6593 struct compound_hdr hdr
;
6596 status
= decode_compound_hdr(xdr
, &hdr
);
6599 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6602 status
= decode_putfh(xdr
);
6605 status
= decode_lock(xdr
, res
);
6611 * Decode LOCKT response
6613 static int nfs4_xdr_dec_lockt(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6614 struct nfs_lockt_res
*res
)
6616 struct compound_hdr hdr
;
6619 status
= decode_compound_hdr(xdr
, &hdr
);
6622 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6625 status
= decode_putfh(xdr
);
6628 status
= decode_lockt(xdr
, res
);
6634 * Decode LOCKU response
6636 static int nfs4_xdr_dec_locku(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6637 struct nfs_locku_res
*res
)
6639 struct compound_hdr hdr
;
6642 status
= decode_compound_hdr(xdr
, &hdr
);
6645 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6648 status
= decode_putfh(xdr
);
6651 status
= decode_locku(xdr
, res
);
6656 static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst
*rqstp
,
6657 struct xdr_stream
*xdr
, void *dummy
)
6659 struct compound_hdr hdr
;
6662 status
= decode_compound_hdr(xdr
, &hdr
);
6664 status
= decode_release_lockowner(xdr
);
6669 * Decode READLINK response
6671 static int nfs4_xdr_dec_readlink(struct rpc_rqst
*rqstp
,
6672 struct xdr_stream
*xdr
,
6673 struct nfs4_readlink_res
*res
)
6675 struct compound_hdr hdr
;
6678 status
= decode_compound_hdr(xdr
, &hdr
);
6681 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6684 status
= decode_putfh(xdr
);
6687 status
= decode_readlink(xdr
, rqstp
);
6693 * Decode READDIR response
6695 static int nfs4_xdr_dec_readdir(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6696 struct nfs4_readdir_res
*res
)
6698 struct compound_hdr hdr
;
6701 status
= decode_compound_hdr(xdr
, &hdr
);
6704 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6707 status
= decode_putfh(xdr
);
6710 status
= decode_readdir(xdr
, rqstp
, res
);
6716 * Decode Read response
6718 static int nfs4_xdr_dec_read(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6719 struct nfs_pgio_res
*res
)
6721 struct compound_hdr hdr
;
6724 status
= decode_compound_hdr(xdr
, &hdr
);
6725 res
->op_status
= hdr
.status
;
6728 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6731 status
= decode_putfh(xdr
);
6734 status
= decode_read(xdr
, rqstp
, res
);
6736 status
= res
->count
;
6742 * Decode WRITE response
6744 static int nfs4_xdr_dec_write(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6745 struct nfs_pgio_res
*res
)
6747 struct compound_hdr hdr
;
6750 status
= decode_compound_hdr(xdr
, &hdr
);
6751 res
->op_status
= hdr
.status
;
6754 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6757 status
= decode_putfh(xdr
);
6760 status
= decode_write(xdr
, res
);
6764 decode_getfattr(xdr
, res
->fattr
, res
->server
);
6766 status
= res
->count
;
6772 * Decode COMMIT response
6774 static int nfs4_xdr_dec_commit(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6775 struct nfs_commitres
*res
)
6777 struct compound_hdr hdr
;
6780 status
= decode_compound_hdr(xdr
, &hdr
);
6781 res
->op_status
= hdr
.status
;
6784 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6787 status
= decode_putfh(xdr
);
6790 status
= decode_commit(xdr
, res
);
6796 * Decode FSINFO response
6798 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
6799 struct nfs4_fsinfo_res
*res
)
6801 struct compound_hdr hdr
;
6804 status
= decode_compound_hdr(xdr
, &hdr
);
6806 status
= decode_sequence(xdr
, &res
->seq_res
, req
);
6808 status
= decode_putfh(xdr
);
6810 status
= decode_fsinfo(xdr
, res
->fsinfo
);
6815 * Decode PATHCONF response
6817 static int nfs4_xdr_dec_pathconf(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
6818 struct nfs4_pathconf_res
*res
)
6820 struct compound_hdr hdr
;
6823 status
= decode_compound_hdr(xdr
, &hdr
);
6825 status
= decode_sequence(xdr
, &res
->seq_res
, req
);
6827 status
= decode_putfh(xdr
);
6829 status
= decode_pathconf(xdr
, res
->pathconf
);
6834 * Decode STATFS response
6836 static int nfs4_xdr_dec_statfs(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
6837 struct nfs4_statfs_res
*res
)
6839 struct compound_hdr hdr
;
6842 status
= decode_compound_hdr(xdr
, &hdr
);
6844 status
= decode_sequence(xdr
, &res
->seq_res
, req
);
6846 status
= decode_putfh(xdr
);
6848 status
= decode_statfs(xdr
, res
->fsstat
);
6853 * Decode GETATTR_BITMAP response
6855 static int nfs4_xdr_dec_server_caps(struct rpc_rqst
*req
,
6856 struct xdr_stream
*xdr
,
6857 struct nfs4_server_caps_res
*res
)
6859 struct compound_hdr hdr
;
6862 status
= decode_compound_hdr(xdr
, &hdr
);
6865 status
= decode_sequence(xdr
, &res
->seq_res
, req
);
6868 status
= decode_putfh(xdr
);
6871 status
= decode_server_caps(xdr
, res
);
6877 * Decode RENEW response
6879 static int nfs4_xdr_dec_renew(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6882 struct compound_hdr hdr
;
6885 status
= decode_compound_hdr(xdr
, &hdr
);
6887 status
= decode_renew(xdr
);
6892 * Decode SETCLIENTID response
6894 static int nfs4_xdr_dec_setclientid(struct rpc_rqst
*req
,
6895 struct xdr_stream
*xdr
,
6896 struct nfs4_setclientid_res
*res
)
6898 struct compound_hdr hdr
;
6901 status
= decode_compound_hdr(xdr
, &hdr
);
6903 status
= decode_setclientid(xdr
, res
);
6908 * Decode SETCLIENTID_CONFIRM response
6910 static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst
*req
,
6911 struct xdr_stream
*xdr
)
6913 struct compound_hdr hdr
;
6916 status
= decode_compound_hdr(xdr
, &hdr
);
6918 status
= decode_setclientid_confirm(xdr
);
6923 * Decode DELEGRETURN response
6925 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst
*rqstp
,
6926 struct xdr_stream
*xdr
,
6927 struct nfs4_delegreturnres
*res
)
6929 struct compound_hdr hdr
;
6932 status
= decode_compound_hdr(xdr
, &hdr
);
6935 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6938 status
= decode_putfh(xdr
);
6942 status
= decode_layoutreturn(xdr
, res
->lr_res
);
6943 res
->lr_ret
= status
;
6948 status
= decode_getfattr(xdr
, res
->fattr
, res
->server
);
6952 status
= decode_delegreturn(xdr
);
6958 * Decode FS_LOCATIONS response
6960 static int nfs4_xdr_dec_fs_locations(struct rpc_rqst
*req
,
6961 struct xdr_stream
*xdr
,
6962 struct nfs4_fs_locations_res
*res
)
6964 struct compound_hdr hdr
;
6967 status
= decode_compound_hdr(xdr
, &hdr
);
6970 status
= decode_sequence(xdr
, &res
->seq_res
, req
);
6973 status
= decode_putfh(xdr
);
6976 if (res
->migration
) {
6977 xdr_enter_page(xdr
, PAGE_SIZE
);
6978 status
= decode_getfattr_generic(xdr
,
6979 &res
->fs_locations
->fattr
,
6980 NULL
, res
->fs_locations
,
6981 NULL
, res
->fs_locations
->server
);
6985 status
= decode_renew(xdr
);
6987 status
= decode_lookup(xdr
);
6990 xdr_enter_page(xdr
, PAGE_SIZE
);
6991 status
= decode_getfattr_generic(xdr
,
6992 &res
->fs_locations
->fattr
,
6993 NULL
, res
->fs_locations
,
6994 NULL
, res
->fs_locations
->server
);
7001 * Decode SECINFO response
7003 static int nfs4_xdr_dec_secinfo(struct rpc_rqst
*rqstp
,
7004 struct xdr_stream
*xdr
,
7005 struct nfs4_secinfo_res
*res
)
7007 struct compound_hdr hdr
;
7010 status
= decode_compound_hdr(xdr
, &hdr
);
7013 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7016 status
= decode_putfh(xdr
);
7019 status
= decode_secinfo(xdr
, res
);
7025 * Decode FSID_PRESENT response
7027 static int nfs4_xdr_dec_fsid_present(struct rpc_rqst
*rqstp
,
7028 struct xdr_stream
*xdr
,
7029 struct nfs4_fsid_present_res
*res
)
7031 struct compound_hdr hdr
;
7034 status
= decode_compound_hdr(xdr
, &hdr
);
7037 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7040 status
= decode_putfh(xdr
);
7043 status
= decode_getfh(xdr
, res
->fh
);
7047 status
= decode_renew(xdr
);
7052 #if defined(CONFIG_NFS_V4_1)
7054 * Decode BIND_CONN_TO_SESSION response
7056 static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst
*rqstp
,
7057 struct xdr_stream
*xdr
,
7060 struct compound_hdr hdr
;
7063 status
= decode_compound_hdr(xdr
, &hdr
);
7065 status
= decode_bind_conn_to_session(xdr
, res
);
7070 * Decode EXCHANGE_ID response
7072 static int nfs4_xdr_dec_exchange_id(struct rpc_rqst
*rqstp
,
7073 struct xdr_stream
*xdr
,
7076 struct compound_hdr hdr
;
7079 status
= decode_compound_hdr(xdr
, &hdr
);
7081 status
= decode_exchange_id(xdr
, res
);
7086 * Decode CREATE_SESSION response
7088 static int nfs4_xdr_dec_create_session(struct rpc_rqst
*rqstp
,
7089 struct xdr_stream
*xdr
,
7090 struct nfs41_create_session_res
*res
)
7092 struct compound_hdr hdr
;
7095 status
= decode_compound_hdr(xdr
, &hdr
);
7097 status
= decode_create_session(xdr
, res
);
7102 * Decode DESTROY_SESSION response
7104 static int nfs4_xdr_dec_destroy_session(struct rpc_rqst
*rqstp
,
7105 struct xdr_stream
*xdr
,
7108 struct compound_hdr hdr
;
7111 status
= decode_compound_hdr(xdr
, &hdr
);
7113 status
= decode_destroy_session(xdr
, res
);
7118 * Decode DESTROY_CLIENTID response
7120 static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst
*rqstp
,
7121 struct xdr_stream
*xdr
,
7124 struct compound_hdr hdr
;
7127 status
= decode_compound_hdr(xdr
, &hdr
);
7129 status
= decode_destroy_clientid(xdr
, res
);
7134 * Decode SEQUENCE response
7136 static int nfs4_xdr_dec_sequence(struct rpc_rqst
*rqstp
,
7137 struct xdr_stream
*xdr
,
7138 struct nfs4_sequence_res
*res
)
7140 struct compound_hdr hdr
;
7143 status
= decode_compound_hdr(xdr
, &hdr
);
7145 status
= decode_sequence(xdr
, res
, rqstp
);
7150 * Decode GET_LEASE_TIME response
7152 static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst
*rqstp
,
7153 struct xdr_stream
*xdr
,
7154 struct nfs4_get_lease_time_res
*res
)
7156 struct compound_hdr hdr
;
7159 status
= decode_compound_hdr(xdr
, &hdr
);
7161 status
= decode_sequence(xdr
, &res
->lr_seq_res
, rqstp
);
7163 status
= decode_putrootfh(xdr
);
7165 status
= decode_fsinfo(xdr
, res
->lr_fsinfo
);
7170 * Decode RECLAIM_COMPLETE response
7172 static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst
*rqstp
,
7173 struct xdr_stream
*xdr
,
7174 struct nfs41_reclaim_complete_res
*res
)
7176 struct compound_hdr hdr
;
7179 status
= decode_compound_hdr(xdr
, &hdr
);
7181 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7183 status
= decode_reclaim_complete(xdr
, NULL
);
7188 * Decode GETDEVINFO response
7190 static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst
*rqstp
,
7191 struct xdr_stream
*xdr
,
7192 struct nfs4_getdeviceinfo_res
*res
)
7194 struct compound_hdr hdr
;
7197 status
= decode_compound_hdr(xdr
, &hdr
);
7200 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7203 status
= decode_getdeviceinfo(xdr
, res
);
7209 * Decode LAYOUTGET response
7211 static int nfs4_xdr_dec_layoutget(struct rpc_rqst
*rqstp
,
7212 struct xdr_stream
*xdr
,
7213 struct nfs4_layoutget_res
*res
)
7215 struct compound_hdr hdr
;
7218 status
= decode_compound_hdr(xdr
, &hdr
);
7221 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7224 status
= decode_putfh(xdr
);
7227 status
= decode_layoutget(xdr
, rqstp
, res
);
7233 * Decode LAYOUTRETURN response
7235 static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst
*rqstp
,
7236 struct xdr_stream
*xdr
,
7237 struct nfs4_layoutreturn_res
*res
)
7239 struct compound_hdr hdr
;
7242 status
= decode_compound_hdr(xdr
, &hdr
);
7245 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7248 status
= decode_putfh(xdr
);
7251 status
= decode_layoutreturn(xdr
, res
);
7257 * Decode LAYOUTCOMMIT response
7259 static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst
*rqstp
,
7260 struct xdr_stream
*xdr
,
7261 struct nfs4_layoutcommit_res
*res
)
7263 struct compound_hdr hdr
;
7266 status
= decode_compound_hdr(xdr
, &hdr
);
7269 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7272 status
= decode_putfh(xdr
);
7275 status
= decode_layoutcommit(xdr
, rqstp
, res
);
7278 decode_getfattr(xdr
, res
->fattr
, res
->server
);
7284 * Decode SECINFO_NO_NAME response
7286 static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst
*rqstp
,
7287 struct xdr_stream
*xdr
,
7288 struct nfs4_secinfo_res
*res
)
7290 struct compound_hdr hdr
;
7293 status
= decode_compound_hdr(xdr
, &hdr
);
7296 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7299 status
= decode_putrootfh(xdr
);
7302 status
= decode_secinfo_no_name(xdr
, res
);
7308 * Decode TEST_STATEID response
7310 static int nfs4_xdr_dec_test_stateid(struct rpc_rqst
*rqstp
,
7311 struct xdr_stream
*xdr
,
7312 struct nfs41_test_stateid_res
*res
)
7314 struct compound_hdr hdr
;
7317 status
= decode_compound_hdr(xdr
, &hdr
);
7320 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7323 status
= decode_test_stateid(xdr
, res
);
7329 * Decode FREE_STATEID response
7331 static int nfs4_xdr_dec_free_stateid(struct rpc_rqst
*rqstp
,
7332 struct xdr_stream
*xdr
,
7333 struct nfs41_free_stateid_res
*res
)
7335 struct compound_hdr hdr
;
7338 status
= decode_compound_hdr(xdr
, &hdr
);
7341 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7344 status
= decode_free_stateid(xdr
, res
);
7348 #endif /* CONFIG_NFS_V4_1 */
7351 * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in
7352 * the local page cache.
7353 * @xdr: XDR stream where entry resides
7354 * @entry: buffer to fill in with entry data
7355 * @plus: boolean indicating whether this should be a readdirplus entry
7357 * Returns zero if successful, otherwise a negative errno value is
7360 * This function is not invoked during READDIR reply decoding, but
7361 * rather whenever an application invokes the getdents(2) system call
7362 * on a directory already in our cache.
7364 int nfs4_decode_dirent(struct xdr_stream
*xdr
, struct nfs_entry
*entry
,
7368 uint32_t bitmap
[3] = {0};
7370 __be32
*p
= xdr_inline_decode(xdr
, 4);
7373 if (*p
== xdr_zero
) {
7374 p
= xdr_inline_decode(xdr
, 4);
7383 p
= xdr_inline_decode(xdr
, 12);
7386 entry
->prev_cookie
= entry
->cookie
;
7387 p
= xdr_decode_hyper(p
, &entry
->cookie
);
7388 entry
->len
= be32_to_cpup(p
);
7390 p
= xdr_inline_decode(xdr
, entry
->len
);
7393 entry
->name
= (const char *) p
;
7396 * In case the server doesn't return an inode number,
7397 * we fake one here. (We don't use inode number 0,
7398 * since glibc seems to choke on it...)
7401 entry
->fattr
->valid
= 0;
7403 if (decode_attr_bitmap(xdr
, bitmap
) < 0)
7406 if (decode_attr_length(xdr
, &len
, &savep
) < 0)
7409 if (decode_getfattr_attrs(xdr
, bitmap
, entry
->fattr
, entry
->fh
,
7410 NULL
, entry
->label
, entry
->server
) < 0)
7412 if (entry
->fattr
->valid
& NFS_ATTR_FATTR_MOUNTED_ON_FILEID
)
7413 entry
->ino
= entry
->fattr
->mounted_on_fileid
;
7414 else if (entry
->fattr
->valid
& NFS_ATTR_FATTR_FILEID
)
7415 entry
->ino
= entry
->fattr
->fileid
;
7417 entry
->d_type
= DT_UNKNOWN
;
7418 if (entry
->fattr
->valid
& NFS_ATTR_FATTR_TYPE
)
7419 entry
->d_type
= nfs_umode_to_dtype(entry
->fattr
->mode
);
7424 print_overflow_msg(__func__
, xdr
);
7429 * We need to translate between nfs status return values and
7430 * the local errno values which may not be the same.
7437 { NFS4ERR_PERM
, -EPERM
},
7438 { NFS4ERR_NOENT
, -ENOENT
},
7439 { NFS4ERR_IO
, -errno_NFSERR_IO
},
7440 { NFS4ERR_NXIO
, -ENXIO
},
7441 { NFS4ERR_ACCESS
, -EACCES
},
7442 { NFS4ERR_EXIST
, -EEXIST
},
7443 { NFS4ERR_XDEV
, -EXDEV
},
7444 { NFS4ERR_NOTDIR
, -ENOTDIR
},
7445 { NFS4ERR_ISDIR
, -EISDIR
},
7446 { NFS4ERR_INVAL
, -EINVAL
},
7447 { NFS4ERR_FBIG
, -EFBIG
},
7448 { NFS4ERR_NOSPC
, -ENOSPC
},
7449 { NFS4ERR_ROFS
, -EROFS
},
7450 { NFS4ERR_MLINK
, -EMLINK
},
7451 { NFS4ERR_NAMETOOLONG
, -ENAMETOOLONG
},
7452 { NFS4ERR_NOTEMPTY
, -ENOTEMPTY
},
7453 { NFS4ERR_DQUOT
, -EDQUOT
},
7454 { NFS4ERR_STALE
, -ESTALE
},
7455 { NFS4ERR_BADHANDLE
, -EBADHANDLE
},
7456 { NFS4ERR_BAD_COOKIE
, -EBADCOOKIE
},
7457 { NFS4ERR_NOTSUPP
, -ENOTSUPP
},
7458 { NFS4ERR_TOOSMALL
, -ETOOSMALL
},
7459 { NFS4ERR_SERVERFAULT
, -EREMOTEIO
},
7460 { NFS4ERR_BADTYPE
, -EBADTYPE
},
7461 { NFS4ERR_LOCKED
, -EAGAIN
},
7462 { NFS4ERR_SYMLINK
, -ELOOP
},
7463 { NFS4ERR_OP_ILLEGAL
, -EOPNOTSUPP
},
7464 { NFS4ERR_DEADLOCK
, -EDEADLK
},
7469 * Convert an NFS error code to a local one.
7470 * This one is used jointly by NFSv2 and NFSv3.
7473 nfs4_stat_to_errno(int stat
)
7476 for (i
= 0; nfs_errtbl
[i
].stat
!= -1; i
++) {
7477 if (nfs_errtbl
[i
].stat
== stat
)
7478 return nfs_errtbl
[i
].errno
;
7480 if (stat
<= 10000 || stat
> 10100) {
7481 /* The server is looney tunes. */
7484 /* If we cannot translate the error, the recovery routines should
7486 * Note: remaining NFSv4 error codes have values > 10000, so should
7487 * not conflict with native Linux error codes.
7492 #ifdef CONFIG_NFS_V4_2
7493 #include "nfs42xdr.c"
7494 #endif /* CONFIG_NFS_V4_2 */
7496 #define PROC(proc, argtype, restype) \
7497 [NFSPROC4_CLNT_##proc] = { \
7498 .p_proc = NFSPROC4_COMPOUND, \
7499 .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \
7500 .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \
7501 .p_arglen = NFS4_##argtype##_sz, \
7502 .p_replen = NFS4_##restype##_sz, \
7503 .p_statidx = NFSPROC4_CLNT_##proc, \
7507 #define STUB(proc) \
7508 [NFSPROC4_CLNT_##proc] = { \
7512 struct rpc_procinfo nfs4_procedures
[] = {
7513 PROC(READ
, enc_read
, dec_read
),
7514 PROC(WRITE
, enc_write
, dec_write
),
7515 PROC(COMMIT
, enc_commit
, dec_commit
),
7516 PROC(OPEN
, enc_open
, dec_open
),
7517 PROC(OPEN_CONFIRM
, enc_open_confirm
, dec_open_confirm
),
7518 PROC(OPEN_NOATTR
, enc_open_noattr
, dec_open_noattr
),
7519 PROC(OPEN_DOWNGRADE
, enc_open_downgrade
, dec_open_downgrade
),
7520 PROC(CLOSE
, enc_close
, dec_close
),
7521 PROC(SETATTR
, enc_setattr
, dec_setattr
),
7522 PROC(FSINFO
, enc_fsinfo
, dec_fsinfo
),
7523 PROC(RENEW
, enc_renew
, dec_renew
),
7524 PROC(SETCLIENTID
, enc_setclientid
, dec_setclientid
),
7525 PROC(SETCLIENTID_CONFIRM
, enc_setclientid_confirm
, dec_setclientid_confirm
),
7526 PROC(LOCK
, enc_lock
, dec_lock
),
7527 PROC(LOCKT
, enc_lockt
, dec_lockt
),
7528 PROC(LOCKU
, enc_locku
, dec_locku
),
7529 PROC(ACCESS
, enc_access
, dec_access
),
7530 PROC(GETATTR
, enc_getattr
, dec_getattr
),
7531 PROC(LOOKUP
, enc_lookup
, dec_lookup
),
7532 PROC(LOOKUP_ROOT
, enc_lookup_root
, dec_lookup_root
),
7533 PROC(REMOVE
, enc_remove
, dec_remove
),
7534 PROC(RENAME
, enc_rename
, dec_rename
),
7535 PROC(LINK
, enc_link
, dec_link
),
7536 PROC(SYMLINK
, enc_symlink
, dec_symlink
),
7537 PROC(CREATE
, enc_create
, dec_create
),
7538 PROC(PATHCONF
, enc_pathconf
, dec_pathconf
),
7539 PROC(STATFS
, enc_statfs
, dec_statfs
),
7540 PROC(READLINK
, enc_readlink
, dec_readlink
),
7541 PROC(READDIR
, enc_readdir
, dec_readdir
),
7542 PROC(SERVER_CAPS
, enc_server_caps
, dec_server_caps
),
7543 PROC(DELEGRETURN
, enc_delegreturn
, dec_delegreturn
),
7544 PROC(GETACL
, enc_getacl
, dec_getacl
),
7545 PROC(SETACL
, enc_setacl
, dec_setacl
),
7546 PROC(FS_LOCATIONS
, enc_fs_locations
, dec_fs_locations
),
7547 PROC(RELEASE_LOCKOWNER
, enc_release_lockowner
, dec_release_lockowner
),
7548 PROC(SECINFO
, enc_secinfo
, dec_secinfo
),
7549 PROC(FSID_PRESENT
, enc_fsid_present
, dec_fsid_present
),
7550 #if defined(CONFIG_NFS_V4_1)
7551 PROC(EXCHANGE_ID
, enc_exchange_id
, dec_exchange_id
),
7552 PROC(CREATE_SESSION
, enc_create_session
, dec_create_session
),
7553 PROC(DESTROY_SESSION
, enc_destroy_session
, dec_destroy_session
),
7554 PROC(SEQUENCE
, enc_sequence
, dec_sequence
),
7555 PROC(GET_LEASE_TIME
, enc_get_lease_time
, dec_get_lease_time
),
7556 PROC(RECLAIM_COMPLETE
, enc_reclaim_complete
, dec_reclaim_complete
),
7557 PROC(GETDEVICEINFO
, enc_getdeviceinfo
, dec_getdeviceinfo
),
7558 PROC(LAYOUTGET
, enc_layoutget
, dec_layoutget
),
7559 PROC(LAYOUTCOMMIT
, enc_layoutcommit
, dec_layoutcommit
),
7560 PROC(LAYOUTRETURN
, enc_layoutreturn
, dec_layoutreturn
),
7561 PROC(SECINFO_NO_NAME
, enc_secinfo_no_name
, dec_secinfo_no_name
),
7562 PROC(TEST_STATEID
, enc_test_stateid
, dec_test_stateid
),
7563 PROC(FREE_STATEID
, enc_free_stateid
, dec_free_stateid
),
7564 STUB(GETDEVICELIST
),
7565 PROC(BIND_CONN_TO_SESSION
,
7566 enc_bind_conn_to_session
, dec_bind_conn_to_session
),
7567 PROC(DESTROY_CLIENTID
, enc_destroy_clientid
, dec_destroy_clientid
),
7568 #endif /* CONFIG_NFS_V4_1 */
7569 #ifdef CONFIG_NFS_V4_2
7570 PROC(SEEK
, enc_seek
, dec_seek
),
7571 PROC(ALLOCATE
, enc_allocate
, dec_allocate
),
7572 PROC(DEALLOCATE
, enc_deallocate
, dec_deallocate
),
7573 PROC(LAYOUTSTATS
, enc_layoutstats
, dec_layoutstats
),
7574 PROC(CLONE
, enc_clone
, dec_clone
),
7575 PROC(COPY
, enc_copy
, dec_copy
),
7576 #endif /* CONFIG_NFS_V4_2 */
7579 const struct rpc_version nfs_version4
= {
7581 .nrprocs
= ARRAY_SIZE(nfs4_procedures
),
7582 .procs
= nfs4_procedures