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/nfs_idmap.h>
59 #include "nfs4session.h"
63 #define NFSDBG_FACILITY NFSDBG_XDR
65 /* Mapping from NFS error code to "errno" error code. */
66 #define errno_NFSERR_IO EIO
68 static int nfs4_stat_to_errno(int);
70 /* NFSv4 COMPOUND tags are only wanted for debugging purposes */
72 #define NFS4_MAXTAGLEN 20
74 #define NFS4_MAXTAGLEN 0
77 /* lock,open owner id:
78 * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
80 #define open_owner_id_maxsz (1 + 2 + 1 + 1 + 2)
81 #define lock_owner_id_maxsz (1 + 1 + 4)
82 #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
83 #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
84 #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
85 #define op_encode_hdr_maxsz (1)
86 #define op_decode_hdr_maxsz (2)
87 #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
88 #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
89 #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
90 #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
91 #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
93 #define decode_putfh_maxsz (op_decode_hdr_maxsz)
94 #define encode_putrootfh_maxsz (op_encode_hdr_maxsz)
95 #define decode_putrootfh_maxsz (op_decode_hdr_maxsz)
96 #define encode_getfh_maxsz (op_encode_hdr_maxsz)
97 #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
98 ((3+NFS4_FHSIZE) >> 2))
99 #define nfs4_fattr_bitmap_maxsz 4
100 #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
101 #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
102 #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
103 #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
104 #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
105 /* We support only one layout type per file system */
106 #define decode_mdsthreshold_maxsz (1 + 1 + nfs4_fattr_bitmap_maxsz + 1 + 8)
107 /* This is based on getfattr, which uses the most attributes: */
108 #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
109 3 + 3 + 3 + nfs4_owner_maxsz + \
110 nfs4_group_maxsz + decode_mdsthreshold_maxsz))
111 #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
112 nfs4_fattr_value_maxsz)
113 #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
114 #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
119 #define encode_savefh_maxsz (op_encode_hdr_maxsz)
120 #define decode_savefh_maxsz (op_decode_hdr_maxsz)
121 #define encode_restorefh_maxsz (op_encode_hdr_maxsz)
122 #define decode_restorefh_maxsz (op_decode_hdr_maxsz)
123 #define encode_fsinfo_maxsz (encode_getattr_maxsz)
124 /* The 5 accounts for the PNFS attributes, and assumes that at most three
125 * layout types will be returned.
127 #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \
128 nfs4_fattr_bitmap_maxsz + 4 + 8 + 5)
129 #define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
130 #define decode_renew_maxsz (op_decode_hdr_maxsz)
131 #define encode_setclientid_maxsz \
132 (op_encode_hdr_maxsz + \
133 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
134 XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \
136 XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
137 XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
139 #define decode_setclientid_maxsz \
140 (op_decode_hdr_maxsz + \
142 1024) /* large value for CLID_INUSE */
143 #define encode_setclientid_confirm_maxsz \
144 (op_encode_hdr_maxsz + \
145 3 + (NFS4_VERIFIER_SIZE >> 2))
146 #define decode_setclientid_confirm_maxsz \
147 (op_decode_hdr_maxsz)
148 #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
149 #define decode_lookup_maxsz (op_decode_hdr_maxsz)
150 #define encode_share_access_maxsz \
152 #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
153 #define encode_opentype_maxsz (1 + encode_createmode_maxsz)
154 #define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
155 #define encode_open_maxsz (op_encode_hdr_maxsz + \
156 2 + encode_share_access_maxsz + 2 + \
157 open_owner_id_maxsz + \
158 encode_opentype_maxsz + \
159 encode_claim_null_maxsz)
160 #define decode_ace_maxsz (3 + nfs4_owner_maxsz)
161 #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
163 #define decode_change_info_maxsz (5)
164 #define decode_open_maxsz (op_decode_hdr_maxsz + \
165 decode_stateid_maxsz + \
166 decode_change_info_maxsz + 1 + \
167 nfs4_fattr_bitmap_maxsz + \
168 decode_delegation_maxsz)
169 #define encode_open_confirm_maxsz \
170 (op_encode_hdr_maxsz + \
171 encode_stateid_maxsz + 1)
172 #define decode_open_confirm_maxsz \
173 (op_decode_hdr_maxsz + \
174 decode_stateid_maxsz)
175 #define encode_open_downgrade_maxsz \
176 (op_encode_hdr_maxsz + \
177 encode_stateid_maxsz + 1 + \
178 encode_share_access_maxsz)
179 #define decode_open_downgrade_maxsz \
180 (op_decode_hdr_maxsz + \
181 decode_stateid_maxsz)
182 #define encode_close_maxsz (op_encode_hdr_maxsz + \
183 1 + encode_stateid_maxsz)
184 #define decode_close_maxsz (op_decode_hdr_maxsz + \
185 decode_stateid_maxsz)
186 #define encode_setattr_maxsz (op_encode_hdr_maxsz + \
187 encode_stateid_maxsz + \
189 #define decode_setattr_maxsz (op_decode_hdr_maxsz + \
190 nfs4_fattr_bitmap_maxsz)
191 #define encode_read_maxsz (op_encode_hdr_maxsz + \
192 encode_stateid_maxsz + 3)
193 #define decode_read_maxsz (op_decode_hdr_maxsz + 2)
194 #define encode_readdir_maxsz (op_encode_hdr_maxsz + \
195 2 + encode_verifier_maxsz + 5)
196 #define decode_readdir_maxsz (op_decode_hdr_maxsz + \
197 decode_verifier_maxsz)
198 #define encode_readlink_maxsz (op_encode_hdr_maxsz)
199 #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1)
200 #define encode_write_maxsz (op_encode_hdr_maxsz + \
201 encode_stateid_maxsz + 4)
202 #define decode_write_maxsz (op_decode_hdr_maxsz + \
203 2 + decode_verifier_maxsz)
204 #define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
205 #define decode_commit_maxsz (op_decode_hdr_maxsz + \
206 decode_verifier_maxsz)
207 #define encode_remove_maxsz (op_encode_hdr_maxsz + \
209 #define decode_remove_maxsz (op_decode_hdr_maxsz + \
210 decode_change_info_maxsz)
211 #define encode_rename_maxsz (op_encode_hdr_maxsz + \
213 #define decode_rename_maxsz (op_decode_hdr_maxsz + \
214 decode_change_info_maxsz + \
215 decode_change_info_maxsz)
216 #define encode_link_maxsz (op_encode_hdr_maxsz + \
218 #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
219 #define encode_lockowner_maxsz (7)
220 #define encode_lock_maxsz (op_encode_hdr_maxsz + \
222 1 + encode_stateid_maxsz + 1 + \
223 encode_lockowner_maxsz)
224 #define decode_lock_denied_maxsz \
225 (8 + decode_lockowner_maxsz)
226 #define decode_lock_maxsz (op_decode_hdr_maxsz + \
227 decode_lock_denied_maxsz)
228 #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
229 encode_lockowner_maxsz)
230 #define decode_lockt_maxsz (op_decode_hdr_maxsz + \
231 decode_lock_denied_maxsz)
232 #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
233 encode_stateid_maxsz + \
235 #define decode_locku_maxsz (op_decode_hdr_maxsz + \
236 decode_stateid_maxsz)
237 #define encode_release_lockowner_maxsz \
238 (op_encode_hdr_maxsz + \
239 encode_lockowner_maxsz)
240 #define decode_release_lockowner_maxsz \
241 (op_decode_hdr_maxsz)
242 #define encode_access_maxsz (op_encode_hdr_maxsz + 1)
243 #define decode_access_maxsz (op_decode_hdr_maxsz + 2)
244 #define encode_symlink_maxsz (op_encode_hdr_maxsz + \
245 1 + nfs4_name_maxsz + \
248 #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
249 #define encode_create_maxsz (op_encode_hdr_maxsz + \
250 1 + 2 + nfs4_name_maxsz + \
252 #define decode_create_maxsz (op_decode_hdr_maxsz + \
253 decode_change_info_maxsz + \
254 nfs4_fattr_bitmap_maxsz)
255 #define encode_statfs_maxsz (encode_getattr_maxsz)
256 #define decode_statfs_maxsz (decode_getattr_maxsz)
257 #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
258 #define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
259 #define encode_getacl_maxsz (encode_getattr_maxsz)
260 #define decode_getacl_maxsz (op_decode_hdr_maxsz + \
261 nfs4_fattr_bitmap_maxsz + 1)
262 #define encode_setacl_maxsz (op_encode_hdr_maxsz + \
263 encode_stateid_maxsz + 3)
264 #define decode_setacl_maxsz (decode_setattr_maxsz)
265 #define encode_fs_locations_maxsz \
266 (encode_getattr_maxsz)
267 #define decode_fs_locations_maxsz \
269 #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
270 #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4))
272 #if defined(CONFIG_NFS_V4_1)
273 #define NFS4_MAX_MACHINE_NAME_LEN (64)
274 #define IMPL_NAME_LIMIT (sizeof(utsname()->sysname) + sizeof(utsname()->release) + \
275 sizeof(utsname()->version) + sizeof(utsname()->machine) + 8)
277 #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
278 encode_verifier_maxsz + \
279 1 /* co_ownerid.len */ + \
280 XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \
283 0 /* SP4_NONE (for now) */ + \
284 1 /* implementation id array of size 1 */ + \
285 1 /* nii_domain */ + \
286 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
288 XDR_QUADLEN(IMPL_NAME_LIMIT) + \
290 #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
291 2 /* eir_clientid */ + \
292 1 /* eir_sequenceid */ + \
293 1 /* eir_flags */ + \
295 0 /* SP4_NONE (for now) */ + \
296 2 /* eir_server_owner.so_minor_id */ + \
297 /* eir_server_owner.so_major_id<> */ \
298 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
299 /* eir_server_scope<> */ \
300 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
301 1 /* eir_server_impl_id array length */ + \
302 1 /* nii_domain */ + \
303 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
305 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
307 #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
308 #define decode_channel_attrs_maxsz (6 + \
309 1 /* ca_rdma_ird.len */ + \
311 #define encode_create_session_maxsz (op_encode_hdr_maxsz + \
312 2 /* csa_clientid */ + \
313 1 /* csa_sequence */ + \
314 1 /* csa_flags */ + \
315 encode_channel_attrs_maxsz + \
316 encode_channel_attrs_maxsz + \
317 1 /* csa_cb_program */ + \
318 1 /* csa_sec_parms.len (1) */ + \
319 1 /* cb_secflavor (AUTH_SYS) */ + \
321 1 /* machinename.len */ + \
322 XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
325 1 /* gids.len (0) */)
326 #define decode_create_session_maxsz (op_decode_hdr_maxsz + \
327 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
328 1 /* csr_sequence */ + \
329 1 /* csr_flags */ + \
330 decode_channel_attrs_maxsz + \
331 decode_channel_attrs_maxsz)
332 #define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \
334 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
335 1 /* bctsa_dir */ + \
336 1 /* bctsa_use_conn_in_rdma_mode */)
337 #define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \
339 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
340 1 /* bctsr_dir */ + \
341 1 /* bctsr_use_conn_in_rdma_mode */)
342 #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
343 #define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
344 #define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2)
345 #define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz)
346 #define encode_sequence_maxsz (op_encode_hdr_maxsz + \
347 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
348 #define decode_sequence_maxsz (op_decode_hdr_maxsz + \
349 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
350 #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
351 #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
352 #define encode_getdevicelist_maxsz (op_encode_hdr_maxsz + 4 + \
353 encode_verifier_maxsz)
354 #define decode_getdevicelist_maxsz (op_decode_hdr_maxsz + \
355 2 /* nfs_cookie4 gdlr_cookie */ + \
356 decode_verifier_maxsz \
357 /* verifier4 gdlr_verifier */ + \
358 1 /* gdlr_deviceid_list count */ + \
359 XDR_QUADLEN(NFS4_PNFS_GETDEVLIST_MAXNUM * \
360 NFS4_DEVICEID4_SIZE) \
361 /* gdlr_deviceid_list */ + \
362 1 /* bool gdlr_eof */)
363 #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \
364 XDR_QUADLEN(NFS4_DEVICEID4_SIZE))
365 #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \
366 1 /* layout type */ + \
367 1 /* opaque devaddr4 length */ + \
368 /* devaddr4 payload is read into page */ \
369 1 /* notification bitmap length */ + \
370 1 /* notification bitmap */)
371 #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \
372 encode_stateid_maxsz)
373 #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \
374 decode_stateid_maxsz + \
375 XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE))
376 #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \
380 encode_stateid_maxsz + \
381 1 /* new offset (true) */ + \
382 2 /* last byte written */ + \
383 1 /* nt_timechanged (false) */ + \
384 1 /* layoutupdate4 layout type */ + \
385 1 /* NULL filelayout layoutupdate4 payload */)
386 #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3)
387 #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \
388 encode_stateid_maxsz + \
389 1 /* FIXME: opaque lrf_body always empty at the moment */)
390 #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \
391 1 + decode_stateid_maxsz)
392 #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1)
393 #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz
394 #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \
395 XDR_QUADLEN(NFS4_STATEID_SIZE))
396 #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1)
397 #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \
398 XDR_QUADLEN(NFS4_STATEID_SIZE))
399 #define decode_free_stateid_maxsz (op_decode_hdr_maxsz + 1)
400 #else /* CONFIG_NFS_V4_1 */
401 #define encode_sequence_maxsz 0
402 #define decode_sequence_maxsz 0
403 #endif /* CONFIG_NFS_V4_1 */
405 #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
406 #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
407 #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
408 encode_sequence_maxsz + \
409 encode_putfh_maxsz + \
411 #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
412 decode_sequence_maxsz + \
413 decode_putfh_maxsz + \
415 #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
416 encode_sequence_maxsz + \
417 encode_putfh_maxsz + \
418 encode_readlink_maxsz)
419 #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
420 decode_sequence_maxsz + \
421 decode_putfh_maxsz + \
422 decode_readlink_maxsz)
423 #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
424 encode_sequence_maxsz + \
425 encode_putfh_maxsz + \
426 encode_readdir_maxsz)
427 #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
428 decode_sequence_maxsz + \
429 decode_putfh_maxsz + \
430 decode_readdir_maxsz)
431 #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
432 encode_sequence_maxsz + \
433 encode_putfh_maxsz + \
434 encode_write_maxsz + \
435 encode_getattr_maxsz)
436 #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
437 decode_sequence_maxsz + \
438 decode_putfh_maxsz + \
439 decode_write_maxsz + \
440 decode_getattr_maxsz)
441 #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
442 encode_sequence_maxsz + \
443 encode_putfh_maxsz + \
445 #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
446 decode_sequence_maxsz + \
447 decode_putfh_maxsz + \
449 #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
450 encode_sequence_maxsz + \
451 encode_putfh_maxsz + \
452 encode_open_maxsz + \
453 encode_access_maxsz + \
454 encode_getfh_maxsz + \
455 encode_getattr_maxsz)
456 #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
457 decode_sequence_maxsz + \
458 decode_putfh_maxsz + \
459 decode_open_maxsz + \
460 decode_access_maxsz + \
461 decode_getfh_maxsz + \
462 decode_getattr_maxsz)
463 #define NFS4_enc_open_confirm_sz \
464 (compound_encode_hdr_maxsz + \
465 encode_putfh_maxsz + \
466 encode_open_confirm_maxsz)
467 #define NFS4_dec_open_confirm_sz \
468 (compound_decode_hdr_maxsz + \
469 decode_putfh_maxsz + \
470 decode_open_confirm_maxsz)
471 #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
472 encode_sequence_maxsz + \
473 encode_putfh_maxsz + \
474 encode_open_maxsz + \
475 encode_access_maxsz + \
476 encode_getattr_maxsz)
477 #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
478 decode_sequence_maxsz + \
479 decode_putfh_maxsz + \
480 decode_open_maxsz + \
481 decode_access_maxsz + \
482 decode_getattr_maxsz)
483 #define NFS4_enc_open_downgrade_sz \
484 (compound_encode_hdr_maxsz + \
485 encode_sequence_maxsz + \
486 encode_putfh_maxsz + \
487 encode_open_downgrade_maxsz + \
488 encode_getattr_maxsz)
489 #define NFS4_dec_open_downgrade_sz \
490 (compound_decode_hdr_maxsz + \
491 decode_sequence_maxsz + \
492 decode_putfh_maxsz + \
493 decode_open_downgrade_maxsz + \
494 decode_getattr_maxsz)
495 #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
496 encode_sequence_maxsz + \
497 encode_putfh_maxsz + \
498 encode_close_maxsz + \
499 encode_getattr_maxsz)
500 #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
501 decode_sequence_maxsz + \
502 decode_putfh_maxsz + \
503 decode_close_maxsz + \
504 decode_getattr_maxsz)
505 #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
506 encode_sequence_maxsz + \
507 encode_putfh_maxsz + \
508 encode_setattr_maxsz + \
509 encode_getattr_maxsz)
510 #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
511 decode_sequence_maxsz + \
512 decode_putfh_maxsz + \
513 decode_setattr_maxsz + \
514 decode_getattr_maxsz)
515 #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
516 encode_sequence_maxsz + \
517 encode_putfh_maxsz + \
519 #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
520 decode_sequence_maxsz + \
521 decode_putfh_maxsz + \
523 #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
525 #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
527 #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
528 encode_setclientid_maxsz)
529 #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
530 decode_setclientid_maxsz)
531 #define NFS4_enc_setclientid_confirm_sz \
532 (compound_encode_hdr_maxsz + \
533 encode_setclientid_confirm_maxsz + \
534 encode_putrootfh_maxsz + \
536 #define NFS4_dec_setclientid_confirm_sz \
537 (compound_decode_hdr_maxsz + \
538 decode_setclientid_confirm_maxsz + \
539 decode_putrootfh_maxsz + \
541 #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
542 encode_sequence_maxsz + \
543 encode_putfh_maxsz + \
545 #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
546 decode_sequence_maxsz + \
547 decode_putfh_maxsz + \
549 #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
550 encode_sequence_maxsz + \
551 encode_putfh_maxsz + \
553 #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
554 decode_sequence_maxsz + \
555 decode_putfh_maxsz + \
557 #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
558 encode_sequence_maxsz + \
559 encode_putfh_maxsz + \
561 #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
562 decode_sequence_maxsz + \
563 decode_putfh_maxsz + \
565 #define NFS4_enc_release_lockowner_sz \
566 (compound_encode_hdr_maxsz + \
567 encode_lockowner_maxsz)
568 #define NFS4_dec_release_lockowner_sz \
569 (compound_decode_hdr_maxsz + \
570 decode_lockowner_maxsz)
571 #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
572 encode_sequence_maxsz + \
573 encode_putfh_maxsz + \
574 encode_access_maxsz + \
575 encode_getattr_maxsz)
576 #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
577 decode_sequence_maxsz + \
578 decode_putfh_maxsz + \
579 decode_access_maxsz + \
580 decode_getattr_maxsz)
581 #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
582 encode_sequence_maxsz + \
583 encode_putfh_maxsz + \
584 encode_getattr_maxsz)
585 #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
586 decode_sequence_maxsz + \
587 decode_putfh_maxsz + \
588 decode_getattr_maxsz)
589 #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
590 encode_sequence_maxsz + \
591 encode_putfh_maxsz + \
592 encode_lookup_maxsz + \
593 encode_getattr_maxsz + \
595 #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
596 decode_sequence_maxsz + \
597 decode_putfh_maxsz + \
598 decode_lookup_maxsz + \
599 decode_getattr_maxsz + \
601 #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
602 encode_sequence_maxsz + \
603 encode_putrootfh_maxsz + \
604 encode_getattr_maxsz + \
606 #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
607 decode_sequence_maxsz + \
608 decode_putrootfh_maxsz + \
609 decode_getattr_maxsz + \
611 #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
612 encode_sequence_maxsz + \
613 encode_putfh_maxsz + \
615 #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
616 decode_sequence_maxsz + \
617 decode_putfh_maxsz + \
619 #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
620 encode_sequence_maxsz + \
621 encode_putfh_maxsz + \
622 encode_savefh_maxsz + \
623 encode_putfh_maxsz + \
625 #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
626 decode_sequence_maxsz + \
627 decode_putfh_maxsz + \
628 decode_savefh_maxsz + \
629 decode_putfh_maxsz + \
631 #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
632 encode_sequence_maxsz + \
633 encode_putfh_maxsz + \
634 encode_savefh_maxsz + \
635 encode_putfh_maxsz + \
636 encode_link_maxsz + \
637 encode_restorefh_maxsz + \
638 encode_getattr_maxsz)
639 #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
640 decode_sequence_maxsz + \
641 decode_putfh_maxsz + \
642 decode_savefh_maxsz + \
643 decode_putfh_maxsz + \
644 decode_link_maxsz + \
645 decode_restorefh_maxsz + \
646 decode_getattr_maxsz)
647 #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
648 encode_sequence_maxsz + \
649 encode_putfh_maxsz + \
650 encode_symlink_maxsz + \
651 encode_getattr_maxsz + \
653 #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
654 decode_sequence_maxsz + \
655 decode_putfh_maxsz + \
656 decode_symlink_maxsz + \
657 decode_getattr_maxsz + \
659 #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
660 encode_sequence_maxsz + \
661 encode_putfh_maxsz + \
662 encode_create_maxsz + \
663 encode_getfh_maxsz + \
664 encode_getattr_maxsz)
665 #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
666 decode_sequence_maxsz + \
667 decode_putfh_maxsz + \
668 decode_create_maxsz + \
669 decode_getfh_maxsz + \
670 decode_getattr_maxsz)
671 #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
672 encode_sequence_maxsz + \
673 encode_putfh_maxsz + \
674 encode_getattr_maxsz)
675 #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
676 decode_sequence_maxsz + \
677 decode_putfh_maxsz + \
678 decode_getattr_maxsz)
679 #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
680 encode_sequence_maxsz + \
681 encode_putfh_maxsz + \
683 #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
684 decode_sequence_maxsz + \
685 decode_putfh_maxsz + \
687 #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
688 encode_sequence_maxsz + \
689 encode_putfh_maxsz + \
690 encode_getattr_maxsz)
691 #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
692 decode_sequence_maxsz + \
693 decode_putfh_maxsz + \
694 decode_getattr_maxsz)
695 #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
696 encode_sequence_maxsz + \
697 encode_putfh_maxsz + \
698 encode_delegreturn_maxsz + \
699 encode_getattr_maxsz)
700 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
701 decode_sequence_maxsz + \
702 decode_delegreturn_maxsz + \
703 decode_getattr_maxsz)
704 #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
705 encode_sequence_maxsz + \
706 encode_putfh_maxsz + \
708 #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
709 decode_sequence_maxsz + \
710 decode_putfh_maxsz + \
712 #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
713 encode_sequence_maxsz + \
714 encode_putfh_maxsz + \
716 #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
717 decode_sequence_maxsz + \
718 decode_putfh_maxsz + \
720 #define NFS4_enc_fs_locations_sz \
721 (compound_encode_hdr_maxsz + \
722 encode_sequence_maxsz + \
723 encode_putfh_maxsz + \
724 encode_lookup_maxsz + \
725 encode_fs_locations_maxsz)
726 #define NFS4_dec_fs_locations_sz \
727 (compound_decode_hdr_maxsz + \
728 decode_sequence_maxsz + \
729 decode_putfh_maxsz + \
730 decode_lookup_maxsz + \
731 decode_fs_locations_maxsz)
732 #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \
733 encode_sequence_maxsz + \
734 encode_putfh_maxsz + \
735 encode_secinfo_maxsz)
736 #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \
737 decode_sequence_maxsz + \
738 decode_putfh_maxsz + \
739 decode_secinfo_maxsz)
740 #if defined(CONFIG_NFS_V4_1)
741 #define NFS4_enc_bind_conn_to_session_sz \
742 (compound_encode_hdr_maxsz + \
743 encode_bind_conn_to_session_maxsz)
744 #define NFS4_dec_bind_conn_to_session_sz \
745 (compound_decode_hdr_maxsz + \
746 decode_bind_conn_to_session_maxsz)
747 #define NFS4_enc_exchange_id_sz \
748 (compound_encode_hdr_maxsz + \
749 encode_exchange_id_maxsz)
750 #define NFS4_dec_exchange_id_sz \
751 (compound_decode_hdr_maxsz + \
752 decode_exchange_id_maxsz)
753 #define NFS4_enc_create_session_sz \
754 (compound_encode_hdr_maxsz + \
755 encode_create_session_maxsz)
756 #define NFS4_dec_create_session_sz \
757 (compound_decode_hdr_maxsz + \
758 decode_create_session_maxsz)
759 #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
760 encode_destroy_session_maxsz)
761 #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
762 decode_destroy_session_maxsz)
763 #define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \
764 encode_destroy_clientid_maxsz)
765 #define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \
766 decode_destroy_clientid_maxsz)
767 #define NFS4_enc_sequence_sz \
768 (compound_decode_hdr_maxsz + \
769 encode_sequence_maxsz)
770 #define NFS4_dec_sequence_sz \
771 (compound_decode_hdr_maxsz + \
772 decode_sequence_maxsz)
773 #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
774 encode_sequence_maxsz + \
775 encode_putrootfh_maxsz + \
777 #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
778 decode_sequence_maxsz + \
779 decode_putrootfh_maxsz + \
781 #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
782 encode_sequence_maxsz + \
783 encode_reclaim_complete_maxsz)
784 #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
785 decode_sequence_maxsz + \
786 decode_reclaim_complete_maxsz)
787 #define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \
788 encode_sequence_maxsz + \
789 encode_putfh_maxsz + \
790 encode_getdevicelist_maxsz)
791 #define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \
792 decode_sequence_maxsz + \
793 decode_putfh_maxsz + \
794 decode_getdevicelist_maxsz)
795 #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \
796 encode_sequence_maxsz +\
797 encode_getdeviceinfo_maxsz)
798 #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \
799 decode_sequence_maxsz + \
800 decode_getdeviceinfo_maxsz)
801 #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \
802 encode_sequence_maxsz + \
803 encode_putfh_maxsz + \
804 encode_layoutget_maxsz)
805 #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \
806 decode_sequence_maxsz + \
807 decode_putfh_maxsz + \
808 decode_layoutget_maxsz)
809 #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \
810 encode_sequence_maxsz +\
811 encode_putfh_maxsz + \
812 encode_layoutcommit_maxsz + \
813 encode_getattr_maxsz)
814 #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \
815 decode_sequence_maxsz + \
816 decode_putfh_maxsz + \
817 decode_layoutcommit_maxsz + \
818 decode_getattr_maxsz)
819 #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \
820 encode_sequence_maxsz + \
821 encode_putfh_maxsz + \
822 encode_layoutreturn_maxsz)
823 #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \
824 decode_sequence_maxsz + \
825 decode_putfh_maxsz + \
826 decode_layoutreturn_maxsz)
827 #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \
828 encode_sequence_maxsz + \
829 encode_putrootfh_maxsz +\
830 encode_secinfo_no_name_maxsz)
831 #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \
832 decode_sequence_maxsz + \
833 decode_putrootfh_maxsz + \
834 decode_secinfo_no_name_maxsz)
835 #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \
836 encode_sequence_maxsz + \
837 encode_test_stateid_maxsz)
838 #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \
839 decode_sequence_maxsz + \
840 decode_test_stateid_maxsz)
841 #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \
842 encode_sequence_maxsz + \
843 encode_free_stateid_maxsz)
844 #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \
845 decode_sequence_maxsz + \
846 decode_free_stateid_maxsz)
848 const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
849 compound_encode_hdr_maxsz +
850 encode_sequence_maxsz +
852 encode_getattr_maxsz) *
855 const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
856 compound_decode_hdr_maxsz +
857 decode_sequence_maxsz +
858 decode_putfh_maxsz) *
860 #endif /* CONFIG_NFS_V4_1 */
862 static const umode_t nfs_type2fmt[] = {
869 [NF4SOCK] = S_IFSOCK,
875 struct compound_hdr {
881 uint32_t replen; /* expected reply words */
885 static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes)
887 __be32 *p = xdr_reserve_space(xdr, nbytes);
892 static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len)
896 p = xdr_reserve_space(xdr, len);
897 xdr_encode_opaque_fixed(p, buf, len);
900 static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
904 p = reserve_space(xdr, 4 + len);
905 xdr_encode_opaque(p, str, len);
908 static void encode_uint32(struct xdr_stream *xdr, u32 n)
912 p = reserve_space(xdr, 4);
916 static void encode_uint64(struct xdr_stream *xdr, u64 n)
920 p = reserve_space(xdr, 8);
921 xdr_encode_hyper(p, n);
924 static void encode_nfs4_seqid(struct xdr_stream *xdr,
925 const struct nfs_seqid *seqid)
927 encode_uint32(xdr, seqid->sequence->counter);
930 static void encode_compound_hdr(struct xdr_stream *xdr,
931 struct rpc_rqst *req,
932 struct compound_hdr *hdr)
935 struct rpc_auth *auth = req->rq_cred->cr_auth;
937 /* initialize running count of expected bytes in reply.
938 * NOTE: the replied tag SHOULD be the same is the one sent,
939 * but this is not required as a MUST for the server to do so. */
940 hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen;
942 WARN_ON_ONCE(hdr->taglen > NFS4_MAXTAGLEN);
943 encode_string(xdr, hdr->taglen, hdr->tag);
944 p = reserve_space(xdr, 8);
945 *p++ = cpu_to_be32(hdr->minorversion);
947 *p = cpu_to_be32(hdr->nops);
950 static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op,
952 struct compound_hdr *hdr)
954 encode_uint32(xdr, op);
956 hdr->replen += replen;
959 static void encode_nops(struct compound_hdr *hdr)
961 WARN_ON_ONCE(hdr->nops > NFS4_MAX_OPS);
962 *hdr->nops_p = htonl(hdr->nops);
965 static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid)
967 encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE);
970 static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
972 encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE);
975 static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
977 char owner_name[IDMAP_NAMESZ];
978 char owner_group[IDMAP_NAMESZ];
979 int owner_namelen = 0;
980 int owner_grouplen = 0;
988 * We reserve enough space to write the entire attribute buffer at once.
989 * In the worst-case, this would be
990 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
991 * = 36 bytes, plus any contribution from variable-length fields
992 * such as owner/group.
997 if (iap->ia_valid & ATTR_SIZE)
999 if (iap->ia_valid & ATTR_MODE)
1001 if (iap->ia_valid & ATTR_UID) {
1002 owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ);
1003 if (owner_namelen < 0) {
1004 dprintk("nfs: couldn't resolve uid %d to string\n",
1005 from_kuid(&init_user_ns, iap->ia_uid));
1007 strcpy(owner_name, "nobody");
1008 owner_namelen = sizeof("nobody") - 1;
1011 len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
1013 if (iap->ia_valid & ATTR_GID) {
1014 owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ);
1015 if (owner_grouplen < 0) {
1016 dprintk("nfs: couldn't resolve gid %d to string\n",
1017 from_kgid(&init_user_ns, iap->ia_gid));
1018 strcpy(owner_group, "nobody");
1019 owner_grouplen = sizeof("nobody") - 1;
1022 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
1024 if (iap->ia_valid & ATTR_ATIME_SET)
1026 else if (iap->ia_valid & ATTR_ATIME)
1028 if (iap->ia_valid & ATTR_MTIME_SET)
1030 else if (iap->ia_valid & ATTR_MTIME)
1032 p = reserve_space(xdr, len);
1035 * We write the bitmap length now, but leave the bitmap and the attribute
1036 * buffer length to be backfilled at the end of this routine.
1038 *p++ = cpu_to_be32(2);
1042 if (iap->ia_valid & ATTR_SIZE) {
1043 bmval0 |= FATTR4_WORD0_SIZE;
1044 p = xdr_encode_hyper(p, iap->ia_size);
1046 if (iap->ia_valid & ATTR_MODE) {
1047 bmval1 |= FATTR4_WORD1_MODE;
1048 *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
1050 if (iap->ia_valid & ATTR_UID) {
1051 bmval1 |= FATTR4_WORD1_OWNER;
1052 p = xdr_encode_opaque(p, owner_name, owner_namelen);
1054 if (iap->ia_valid & ATTR_GID) {
1055 bmval1 |= FATTR4_WORD1_OWNER_GROUP;
1056 p = xdr_encode_opaque(p, owner_group, owner_grouplen);
1058 if (iap->ia_valid & ATTR_ATIME_SET) {
1059 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
1060 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
1061 *p++ = cpu_to_be32(0);
1062 *p++ = cpu_to_be32(iap->ia_atime.tv_sec);
1063 *p++ = cpu_to_be32(iap->ia_atime.tv_nsec);
1065 else if (iap->ia_valid & ATTR_ATIME) {
1066 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
1067 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
1069 if (iap->ia_valid & ATTR_MTIME_SET) {
1070 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
1071 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
1072 *p++ = cpu_to_be32(0);
1073 *p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
1074 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
1076 else if (iap->ia_valid & ATTR_MTIME) {
1077 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
1078 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
1082 * Now we backfill the bitmap and the attribute buffer length.
1084 if (len != ((char *)p - (char *)q) + 4) {
1085 printk(KERN_ERR "NFS: Attr length error, %u != %Zu\n",
1086 len, ((char *)p - (char *)q) + 4);
1089 len = (char *)p - (char *)q - 12;
1090 *q++ = htonl(bmval0);
1091 *q++ = htonl(bmval1);
1097 static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr)
1099 encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr);
1100 encode_uint32(xdr, access);
1103 static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
1105 encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr);
1106 encode_nfs4_seqid(xdr, arg->seqid);
1107 encode_nfs4_stateid(xdr, arg->stateid);
1110 static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr)
1114 encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr);
1115 p = reserve_space(xdr, 12);
1116 p = xdr_encode_hyper(p, args->offset);
1117 *p = cpu_to_be32(args->count);
1120 static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr)
1124 encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr);
1125 encode_uint32(xdr, create->ftype);
1127 switch (create->ftype) {
1129 p = reserve_space(xdr, 4);
1130 *p = cpu_to_be32(create->u.symlink.len);
1131 xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len);
1134 case NF4BLK: case NF4CHR:
1135 p = reserve_space(xdr, 8);
1136 *p++ = cpu_to_be32(create->u.device.specdata1);
1137 *p = cpu_to_be32(create->u.device.specdata2);
1144 encode_string(xdr, create->name->len, create->name->name);
1145 encode_attrs(xdr, create->attrs, create->server);
1148 static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr)
1152 encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
1153 p = reserve_space(xdr, 8);
1154 *p++ = cpu_to_be32(1);
1155 *p = cpu_to_be32(bitmap);
1158 static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr)
1162 encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
1163 p = reserve_space(xdr, 12);
1164 *p++ = cpu_to_be32(2);
1165 *p++ = cpu_to_be32(bm0);
1166 *p = cpu_to_be32(bm1);
1170 encode_getattr_three(struct xdr_stream *xdr,
1171 uint32_t bm0, uint32_t bm1, uint32_t bm2,
1172 struct compound_hdr *hdr)
1176 encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
1178 p = reserve_space(xdr, 16);
1179 *p++ = cpu_to_be32(3);
1180 *p++ = cpu_to_be32(bm0);
1181 *p++ = cpu_to_be32(bm1);
1182 *p = cpu_to_be32(bm2);
1184 p = reserve_space(xdr, 12);
1185 *p++ = cpu_to_be32(2);
1186 *p++ = cpu_to_be32(bm0);
1187 *p = cpu_to_be32(bm1);
1189 p = reserve_space(xdr, 8);
1190 *p++ = cpu_to_be32(1);
1191 *p = cpu_to_be32(bm0);
1195 static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1197 encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0],
1198 bitmask[1] & nfs4_fattr_bitmap[1], hdr);
1201 static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask,
1202 const u32 *open_bitmap,
1203 struct compound_hdr *hdr)
1205 encode_getattr_three(xdr,
1206 bitmask[0] & open_bitmap[0],
1207 bitmask[1] & open_bitmap[1],
1208 bitmask[2] & open_bitmap[2],
1212 static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1214 encode_getattr_three(xdr,
1215 bitmask[0] & nfs4_fsinfo_bitmap[0],
1216 bitmask[1] & nfs4_fsinfo_bitmap[1],
1217 bitmask[2] & nfs4_fsinfo_bitmap[2],
1221 static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1223 encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0],
1224 bitmask[1] & nfs4_fs_locations_bitmap[1], hdr);
1227 static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1229 encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr);
1232 static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1234 encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr);
1235 encode_string(xdr, name->len, name->name);
1238 static inline int nfs4_lock_type(struct file_lock *fl, int block)
1240 if (fl->fl_type == F_RDLCK)
1241 return block ? NFS4_READW_LT : NFS4_READ_LT;
1242 return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT;
1245 static inline uint64_t nfs4_lock_length(struct file_lock *fl)
1247 if (fl->fl_end == OFFSET_MAX)
1248 return ~(uint64_t)0;
1249 return fl->fl_end - fl->fl_start + 1;
1252 static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner)
1256 p = reserve_space(xdr, 32);
1257 p = xdr_encode_hyper(p, lowner->clientid);
1258 *p++ = cpu_to_be32(20);
1259 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
1260 *p++ = cpu_to_be32(lowner->s_dev);
1261 xdr_encode_hyper(p, lowner->id);
1265 * opcode,type,reclaim,offset,length,new_lock_owner = 32
1266 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
1268 static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr)
1272 encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr);
1273 p = reserve_space(xdr, 28);
1274 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block));
1275 *p++ = cpu_to_be32(args->reclaim);
1276 p = xdr_encode_hyper(p, args->fl->fl_start);
1277 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1278 *p = cpu_to_be32(args->new_lock_owner);
1279 if (args->new_lock_owner){
1280 encode_nfs4_seqid(xdr, args->open_seqid);
1281 encode_nfs4_stateid(xdr, args->open_stateid);
1282 encode_nfs4_seqid(xdr, args->lock_seqid);
1283 encode_lockowner(xdr, &args->lock_owner);
1286 encode_nfs4_stateid(xdr, args->lock_stateid);
1287 encode_nfs4_seqid(xdr, args->lock_seqid);
1291 static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr)
1295 encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr);
1296 p = reserve_space(xdr, 20);
1297 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1298 p = xdr_encode_hyper(p, args->fl->fl_start);
1299 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1300 encode_lockowner(xdr, &args->lock_owner);
1303 static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr)
1307 encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr);
1308 encode_uint32(xdr, nfs4_lock_type(args->fl, 0));
1309 encode_nfs4_seqid(xdr, args->seqid);
1310 encode_nfs4_stateid(xdr, args->stateid);
1311 p = reserve_space(xdr, 16);
1312 p = xdr_encode_hyper(p, args->fl->fl_start);
1313 xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1316 static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr)
1318 encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr);
1319 encode_lockowner(xdr, lowner);
1322 static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1324 encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr);
1325 encode_string(xdr, name->len, name->name);
1328 static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode)
1332 p = reserve_space(xdr, 8);
1333 switch (fmode & (FMODE_READ|FMODE_WRITE)) {
1335 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ);
1338 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE);
1340 case FMODE_READ|FMODE_WRITE:
1341 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH);
1344 *p++ = cpu_to_be32(0);
1346 *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */
1349 static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1353 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1356 encode_nfs4_seqid(xdr, arg->seqid);
1357 encode_share_access(xdr, arg->fmode);
1358 p = reserve_space(xdr, 36);
1359 p = xdr_encode_hyper(p, arg->clientid);
1360 *p++ = cpu_to_be32(24);
1361 p = xdr_encode_opaque_fixed(p, "open id:", 8);
1362 *p++ = cpu_to_be32(arg->server->s_dev);
1363 *p++ = cpu_to_be32(arg->id.uniquifier);
1364 xdr_encode_hyper(p, arg->id.create_time);
1367 static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1372 p = reserve_space(xdr, 4);
1373 switch(arg->createmode) {
1374 case NFS4_CREATE_UNCHECKED:
1375 *p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
1376 encode_attrs(xdr, arg->u.attrs, arg->server);
1378 case NFS4_CREATE_GUARDED:
1379 *p = cpu_to_be32(NFS4_CREATE_GUARDED);
1380 encode_attrs(xdr, arg->u.attrs, arg->server);
1382 case NFS4_CREATE_EXCLUSIVE:
1383 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
1384 encode_nfs4_verifier(xdr, &arg->u.verifier);
1386 case NFS4_CREATE_EXCLUSIVE4_1:
1387 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1);
1388 encode_nfs4_verifier(xdr, &arg->u.verifier);
1390 encode_attrs(xdr, &dummy, arg->server);
1394 static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1398 p = reserve_space(xdr, 4);
1399 switch (arg->open_flags & O_CREAT) {
1401 *p = cpu_to_be32(NFS4_OPEN_NOCREATE);
1404 *p = cpu_to_be32(NFS4_OPEN_CREATE);
1405 encode_createmode(xdr, arg);
1409 static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type)
1413 p = reserve_space(xdr, 4);
1414 switch (delegation_type) {
1416 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE);
1419 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ);
1421 case FMODE_WRITE|FMODE_READ:
1422 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE);
1429 static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
1433 p = reserve_space(xdr, 4);
1434 *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL);
1435 encode_string(xdr, name->len, name->name);
1438 static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type)
1442 p = reserve_space(xdr, 4);
1443 *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS);
1444 encode_delegation_type(xdr, type);
1447 static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
1451 p = reserve_space(xdr, 4);
1452 *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
1453 encode_nfs4_stateid(xdr, stateid);
1454 encode_string(xdr, name->len, name->name);
1457 static inline void encode_claim_fh(struct xdr_stream *xdr)
1461 p = reserve_space(xdr, 4);
1462 *p = cpu_to_be32(NFS4_OPEN_CLAIM_FH);
1465 static inline void encode_claim_delegate_cur_fh(struct xdr_stream *xdr, const nfs4_stateid *stateid)
1469 p = reserve_space(xdr, 4);
1470 *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEG_CUR_FH);
1471 encode_nfs4_stateid(xdr, stateid);
1474 static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr)
1476 encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr);
1477 encode_openhdr(xdr, arg);
1478 encode_opentype(xdr, arg);
1479 switch (arg->claim) {
1480 case NFS4_OPEN_CLAIM_NULL:
1481 encode_claim_null(xdr, arg->name);
1483 case NFS4_OPEN_CLAIM_PREVIOUS:
1484 encode_claim_previous(xdr, arg->u.delegation_type);
1486 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
1487 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
1489 case NFS4_OPEN_CLAIM_FH:
1490 encode_claim_fh(xdr);
1492 case NFS4_OPEN_CLAIM_DELEG_CUR_FH:
1493 encode_claim_delegate_cur_fh(xdr, &arg->u.delegation);
1500 static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr)
1502 encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr);
1503 encode_nfs4_stateid(xdr, arg->stateid);
1504 encode_nfs4_seqid(xdr, arg->seqid);
1507 static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
1509 encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr);
1510 encode_nfs4_stateid(xdr, arg->stateid);
1511 encode_nfs4_seqid(xdr, arg->seqid);
1512 encode_share_access(xdr, arg->fmode);
1516 encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr)
1518 encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr);
1519 encode_string(xdr, fh->size, fh->data);
1522 static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1524 encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr);
1527 static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr)
1531 encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr);
1532 encode_nfs4_stateid(xdr, &args->stateid);
1534 p = reserve_space(xdr, 12);
1535 p = xdr_encode_hyper(p, args->offset);
1536 *p = cpu_to_be32(args->count);
1539 static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr)
1541 uint32_t attrs[2] = {
1542 FATTR4_WORD0_RDATTR_ERROR,
1543 FATTR4_WORD1_MOUNTED_ON_FILEID,
1545 uint32_t dircount = readdir->count >> 1;
1548 if (readdir->plus) {
1549 attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE|
1550 FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID;
1551 attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER|
1552 FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV|
1553 FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS|
1554 FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
1557 /* Use mounted_on_fileid only if the server supports it */
1558 if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID))
1559 attrs[0] |= FATTR4_WORD0_FILEID;
1561 encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr);
1562 encode_uint64(xdr, readdir->cookie);
1563 encode_nfs4_verifier(xdr, &readdir->verifier);
1564 p = reserve_space(xdr, 20);
1565 *p++ = cpu_to_be32(dircount);
1566 *p++ = cpu_to_be32(readdir->count);
1567 *p++ = cpu_to_be32(2);
1569 *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]);
1570 *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]);
1571 memcpy(verf, readdir->verifier.data, sizeof(verf));
1572 dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n",
1574 (unsigned long long)readdir->cookie,
1576 attrs[0] & readdir->bitmask[0],
1577 attrs[1] & readdir->bitmask[1]);
1580 static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr)
1582 encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr);
1585 static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1587 encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr);
1588 encode_string(xdr, name->len, name->name);
1591 static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr)
1593 encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr);
1594 encode_string(xdr, oldname->len, oldname->name);
1595 encode_string(xdr, newname->len, newname->name);
1598 static void encode_renew(struct xdr_stream *xdr, clientid4 clid,
1599 struct compound_hdr *hdr)
1601 encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr);
1602 encode_uint64(xdr, clid);
1606 encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1608 encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr);
1612 encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr)
1616 encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr);
1617 encode_nfs4_stateid(xdr, &zero_stateid);
1618 p = reserve_space(xdr, 2*4);
1619 *p++ = cpu_to_be32(1);
1620 *p = cpu_to_be32(FATTR4_WORD0_ACL);
1621 p = reserve_space(xdr, 4);
1622 *p = cpu_to_be32(arg->acl_len);
1623 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
1627 encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1629 encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr);
1632 static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr)
1634 encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr);
1635 encode_nfs4_stateid(xdr, &arg->stateid);
1636 encode_attrs(xdr, arg->iap, server);
1639 static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr)
1643 encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr);
1644 encode_nfs4_verifier(xdr, setclientid->sc_verifier);
1646 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
1647 p = reserve_space(xdr, 4);
1648 *p = cpu_to_be32(setclientid->sc_prog);
1649 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1650 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
1651 p = reserve_space(xdr, 4);
1652 *p = cpu_to_be32(setclientid->sc_cb_ident);
1655 static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr)
1657 encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM,
1658 decode_setclientid_confirm_maxsz, hdr);
1659 encode_uint64(xdr, arg->clientid);
1660 encode_nfs4_verifier(xdr, &arg->confirm);
1663 static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
1667 encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr);
1668 encode_nfs4_stateid(xdr, &args->stateid);
1670 p = reserve_space(xdr, 16);
1671 p = xdr_encode_hyper(p, args->offset);
1672 *p++ = cpu_to_be32(args->stable);
1673 *p = cpu_to_be32(args->count);
1675 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
1678 static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr)
1680 encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr);
1681 encode_nfs4_stateid(xdr, stateid);
1684 static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1686 encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr);
1687 encode_string(xdr, name->len, name->name);
1690 #if defined(CONFIG_NFS_V4_1)
1691 /* NFSv4.1 operations */
1692 static void encode_bind_conn_to_session(struct xdr_stream *xdr,
1693 struct nfs4_session *session,
1694 struct compound_hdr *hdr)
1698 encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION,
1699 decode_bind_conn_to_session_maxsz, hdr);
1700 encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1701 p = xdr_reserve_space(xdr, 8);
1702 *p++ = cpu_to_be32(NFS4_CDFC4_BACK_OR_BOTH);
1703 *p = 0; /* use_conn_in_rdma_mode = False */
1706 static void encode_exchange_id(struct xdr_stream *xdr,
1707 struct nfs41_exchange_id_args *args,
1708 struct compound_hdr *hdr)
1711 char impl_name[IMPL_NAME_LIMIT];
1714 encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr);
1715 encode_nfs4_verifier(xdr, args->verifier);
1717 encode_string(xdr, args->id_len, args->id);
1719 p = reserve_space(xdr, 12);
1720 *p++ = cpu_to_be32(args->flags);
1721 *p++ = cpu_to_be32(0); /* zero length state_protect4_a */
1723 if (send_implementation_id &&
1724 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 &&
1725 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN)
1726 <= sizeof(impl_name) + 1)
1727 len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s",
1728 utsname()->sysname, utsname()->release,
1729 utsname()->version, utsname()->machine);
1732 *p = cpu_to_be32(1); /* implementation id array length=1 */
1735 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1,
1736 CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN);
1737 encode_string(xdr, len, impl_name);
1738 /* just send zeros for nii_date - the date is in nii_name */
1739 p = reserve_space(xdr, 12);
1740 p = xdr_encode_hyper(p, 0);
1741 *p = cpu_to_be32(0);
1743 *p = cpu_to_be32(0); /* implementation id array length=0 */
1746 static void encode_create_session(struct xdr_stream *xdr,
1747 struct nfs41_create_session_args *args,
1748 struct compound_hdr *hdr)
1751 char machine_name[NFS4_MAX_MACHINE_NAME_LEN];
1753 struct nfs_client *clp = args->client;
1754 struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);
1755 u32 max_resp_sz_cached;
1758 * Assumes OPEN is the biggest non-idempotent compound.
1759 * 2 is the verifier.
1761 max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE +
1762 RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT;
1764 len = scnprintf(machine_name, sizeof(machine_name), "%s",
1767 encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr);
1768 p = reserve_space(xdr, 16 + 2*28 + 20 + len + 12);
1769 p = xdr_encode_hyper(p, clp->cl_clientid);
1770 *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */
1771 *p++ = cpu_to_be32(args->flags); /*flags */
1774 *p++ = cpu_to_be32(0); /* header padding size */
1775 *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */
1776 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */
1777 *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */
1778 *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */
1779 *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */
1780 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1783 *p++ = cpu_to_be32(0); /* header padding size */
1784 *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */
1785 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */
1786 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1787 *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */
1788 *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */
1789 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1791 *p++ = cpu_to_be32(args->cb_program); /* cb_program */
1792 *p++ = cpu_to_be32(1);
1793 *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */
1795 /* authsys_parms rfc1831 */
1796 *p++ = (__be32)nn->boot_time.tv_nsec; /* stamp */
1797 p = xdr_encode_opaque(p, machine_name, len);
1798 *p++ = cpu_to_be32(0); /* UID */
1799 *p++ = cpu_to_be32(0); /* GID */
1800 *p = cpu_to_be32(0); /* No more gids */
1803 static void encode_destroy_session(struct xdr_stream *xdr,
1804 struct nfs4_session *session,
1805 struct compound_hdr *hdr)
1807 encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr);
1808 encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1811 static void encode_destroy_clientid(struct xdr_stream *xdr,
1813 struct compound_hdr *hdr)
1815 encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr);
1816 encode_uint64(xdr, clientid);
1819 static void encode_reclaim_complete(struct xdr_stream *xdr,
1820 struct nfs41_reclaim_complete_args *args,
1821 struct compound_hdr *hdr)
1823 encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr);
1824 encode_uint32(xdr, args->one_fs);
1826 #endif /* CONFIG_NFS_V4_1 */
1828 static void encode_sequence(struct xdr_stream *xdr,
1829 const struct nfs4_sequence_args *args,
1830 struct compound_hdr *hdr)
1832 #if defined(CONFIG_NFS_V4_1)
1833 struct nfs4_session *session;
1834 struct nfs4_slot_table *tp;
1835 struct nfs4_slot *slot = args->sa_slot;
1842 session = tp->session;
1844 encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr);
1847 * Sessionid + seqid + slotid + max slotid + cache_this
1849 dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
1850 "max_slotid=%d cache_this=%d\n",
1852 ((u32 *)session->sess_id.data)[0],
1853 ((u32 *)session->sess_id.data)[1],
1854 ((u32 *)session->sess_id.data)[2],
1855 ((u32 *)session->sess_id.data)[3],
1856 slot->seq_nr, slot->slot_nr,
1857 tp->highest_used_slotid, args->sa_cache_this);
1858 p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16);
1859 p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1860 *p++ = cpu_to_be32(slot->seq_nr);
1861 *p++ = cpu_to_be32(slot->slot_nr);
1862 *p++ = cpu_to_be32(tp->highest_used_slotid);
1863 *p = cpu_to_be32(args->sa_cache_this);
1864 #endif /* CONFIG_NFS_V4_1 */
1867 #ifdef CONFIG_NFS_V4_1
1869 encode_getdevicelist(struct xdr_stream *xdr,
1870 const struct nfs4_getdevicelist_args *args,
1871 struct compound_hdr *hdr)
1874 nfs4_verifier dummy = {
1878 encode_op_hdr(xdr, OP_GETDEVICELIST, decode_getdevicelist_maxsz, hdr);
1879 p = reserve_space(xdr, 16);
1880 *p++ = cpu_to_be32(args->layoutclass);
1881 *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM);
1882 xdr_encode_hyper(p, 0ULL); /* cookie */
1883 encode_nfs4_verifier(xdr, &dummy);
1887 encode_getdeviceinfo(struct xdr_stream *xdr,
1888 const struct nfs4_getdeviceinfo_args *args,
1889 struct compound_hdr *hdr)
1893 encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr);
1894 p = reserve_space(xdr, 12 + NFS4_DEVICEID4_SIZE);
1895 p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data,
1896 NFS4_DEVICEID4_SIZE);
1897 *p++ = cpu_to_be32(args->pdev->layout_type);
1898 *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */
1899 *p++ = cpu_to_be32(0); /* bitmap length 0 */
1903 encode_layoutget(struct xdr_stream *xdr,
1904 const struct nfs4_layoutget_args *args,
1905 struct compound_hdr *hdr)
1909 encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr);
1910 p = reserve_space(xdr, 36);
1911 *p++ = cpu_to_be32(0); /* Signal layout available */
1912 *p++ = cpu_to_be32(args->type);
1913 *p++ = cpu_to_be32(args->range.iomode);
1914 p = xdr_encode_hyper(p, args->range.offset);
1915 p = xdr_encode_hyper(p, args->range.length);
1916 p = xdr_encode_hyper(p, args->minlength);
1917 encode_nfs4_stateid(xdr, &args->stateid);
1918 encode_uint32(xdr, args->maxcount);
1920 dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n",
1924 (unsigned long)args->range.offset,
1925 (unsigned long)args->range.length,
1930 encode_layoutcommit(struct xdr_stream *xdr,
1931 struct inode *inode,
1932 const struct nfs4_layoutcommit_args *args,
1933 struct compound_hdr *hdr)
1937 dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten,
1938 NFS_SERVER(args->inode)->pnfs_curr_ld->id);
1940 encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr);
1941 p = reserve_space(xdr, 20);
1942 /* Only whole file layouts */
1943 p = xdr_encode_hyper(p, 0); /* offset */
1944 p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */
1945 *p = cpu_to_be32(0); /* reclaim */
1946 encode_nfs4_stateid(xdr, &args->stateid);
1947 p = reserve_space(xdr, 20);
1948 *p++ = cpu_to_be32(1); /* newoffset = TRUE */
1949 p = xdr_encode_hyper(p, args->lastbytewritten);
1950 *p++ = cpu_to_be32(0); /* Never send time_modify_changed */
1951 *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */
1953 if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit)
1954 NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit(
1955 NFS_I(inode)->layout, xdr, args);
1957 encode_uint32(xdr, 0); /* no layout-type payload */
1963 encode_layoutreturn(struct xdr_stream *xdr,
1964 const struct nfs4_layoutreturn_args *args,
1965 struct compound_hdr *hdr)
1969 encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr);
1970 p = reserve_space(xdr, 16);
1971 *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */
1972 *p++ = cpu_to_be32(args->layout_type);
1973 *p++ = cpu_to_be32(IOMODE_ANY);
1974 *p = cpu_to_be32(RETURN_FILE);
1975 p = reserve_space(xdr, 16);
1976 p = xdr_encode_hyper(p, 0);
1977 p = xdr_encode_hyper(p, NFS4_MAX_UINT64);
1978 spin_lock(&args->inode->i_lock);
1979 encode_nfs4_stateid(xdr, &args->stateid);
1980 spin_unlock(&args->inode->i_lock);
1981 if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) {
1982 NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn(
1983 NFS_I(args->inode)->layout, xdr, args);
1985 encode_uint32(xdr, 0);
1989 encode_secinfo_no_name(struct xdr_stream *xdr,
1990 const struct nfs41_secinfo_no_name_args *args,
1991 struct compound_hdr *hdr)
1993 encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr);
1994 encode_uint32(xdr, args->style);
1998 static void encode_test_stateid(struct xdr_stream *xdr,
1999 struct nfs41_test_stateid_args *args,
2000 struct compound_hdr *hdr)
2002 encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr);
2003 encode_uint32(xdr, 1);
2004 encode_nfs4_stateid(xdr, args->stateid);
2007 static void encode_free_stateid(struct xdr_stream *xdr,
2008 struct nfs41_free_stateid_args *args,
2009 struct compound_hdr *hdr)
2011 encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr);
2012 encode_nfs4_stateid(xdr, args->stateid);
2014 #endif /* CONFIG_NFS_V4_1 */
2017 * END OF "GENERIC" ENCODE ROUTINES.
2020 static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
2022 #if defined(CONFIG_NFS_V4_1)
2025 return args->sa_slot->table->session->clp->cl_mvops->minor_version;
2026 #endif /* CONFIG_NFS_V4_1 */
2031 * Encode an ACCESS request
2033 static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr,
2034 const struct nfs4_accessargs *args)
2036 struct compound_hdr hdr = {
2037 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2040 encode_compound_hdr(xdr, req, &hdr);
2041 encode_sequence(xdr, &args->seq_args, &hdr);
2042 encode_putfh(xdr, args->fh, &hdr);
2043 encode_access(xdr, args->access, &hdr);
2044 encode_getfattr(xdr, args->bitmask, &hdr);
2049 * Encode LOOKUP request
2051 static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr,
2052 const struct nfs4_lookup_arg *args)
2054 struct compound_hdr hdr = {
2055 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2058 encode_compound_hdr(xdr, req, &hdr);
2059 encode_sequence(xdr, &args->seq_args, &hdr);
2060 encode_putfh(xdr, args->dir_fh, &hdr);
2061 encode_lookup(xdr, args->name, &hdr);
2062 encode_getfh(xdr, &hdr);
2063 encode_getfattr(xdr, args->bitmask, &hdr);
2068 * Encode LOOKUP_ROOT request
2070 static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req,
2071 struct xdr_stream *xdr,
2072 const struct nfs4_lookup_root_arg *args)
2074 struct compound_hdr hdr = {
2075 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2078 encode_compound_hdr(xdr, req, &hdr);
2079 encode_sequence(xdr, &args->seq_args, &hdr);
2080 encode_putrootfh(xdr, &hdr);
2081 encode_getfh(xdr, &hdr);
2082 encode_getfattr(xdr, args->bitmask, &hdr);
2087 * Encode REMOVE request
2089 static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr,
2090 const struct nfs_removeargs *args)
2092 struct compound_hdr hdr = {
2093 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2096 encode_compound_hdr(xdr, req, &hdr);
2097 encode_sequence(xdr, &args->seq_args, &hdr);
2098 encode_putfh(xdr, args->fh, &hdr);
2099 encode_remove(xdr, &args->name, &hdr);
2104 * Encode RENAME request
2106 static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr,
2107 const struct nfs_renameargs *args)
2109 struct compound_hdr hdr = {
2110 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2113 encode_compound_hdr(xdr, req, &hdr);
2114 encode_sequence(xdr, &args->seq_args, &hdr);
2115 encode_putfh(xdr, args->old_dir, &hdr);
2116 encode_savefh(xdr, &hdr);
2117 encode_putfh(xdr, args->new_dir, &hdr);
2118 encode_rename(xdr, args->old_name, args->new_name, &hdr);
2123 * Encode LINK request
2125 static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr,
2126 const struct nfs4_link_arg *args)
2128 struct compound_hdr hdr = {
2129 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2132 encode_compound_hdr(xdr, req, &hdr);
2133 encode_sequence(xdr, &args->seq_args, &hdr);
2134 encode_putfh(xdr, args->fh, &hdr);
2135 encode_savefh(xdr, &hdr);
2136 encode_putfh(xdr, args->dir_fh, &hdr);
2137 encode_link(xdr, args->name, &hdr);
2138 encode_restorefh(xdr, &hdr);
2139 encode_getfattr(xdr, args->bitmask, &hdr);
2144 * Encode CREATE request
2146 static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr,
2147 const struct nfs4_create_arg *args)
2149 struct compound_hdr hdr = {
2150 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2153 encode_compound_hdr(xdr, req, &hdr);
2154 encode_sequence(xdr, &args->seq_args, &hdr);
2155 encode_putfh(xdr, args->dir_fh, &hdr);
2156 encode_create(xdr, args, &hdr);
2157 encode_getfh(xdr, &hdr);
2158 encode_getfattr(xdr, args->bitmask, &hdr);
2163 * Encode SYMLINK request
2165 static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr,
2166 const struct nfs4_create_arg *args)
2168 nfs4_xdr_enc_create(req, xdr, args);
2172 * Encode GETATTR request
2174 static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr,
2175 const struct nfs4_getattr_arg *args)
2177 struct compound_hdr hdr = {
2178 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2181 encode_compound_hdr(xdr, req, &hdr);
2182 encode_sequence(xdr, &args->seq_args, &hdr);
2183 encode_putfh(xdr, args->fh, &hdr);
2184 encode_getfattr(xdr, args->bitmask, &hdr);
2189 * Encode a CLOSE request
2191 static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
2192 struct nfs_closeargs *args)
2194 struct compound_hdr hdr = {
2195 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2198 encode_compound_hdr(xdr, req, &hdr);
2199 encode_sequence(xdr, &args->seq_args, &hdr);
2200 encode_putfh(xdr, args->fh, &hdr);
2201 encode_close(xdr, args, &hdr);
2202 encode_getfattr(xdr, args->bitmask, &hdr);
2207 * Encode an OPEN request
2209 static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
2210 struct nfs_openargs *args)
2212 struct compound_hdr hdr = {
2213 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2216 encode_compound_hdr(xdr, req, &hdr);
2217 encode_sequence(xdr, &args->seq_args, &hdr);
2218 encode_putfh(xdr, args->fh, &hdr);
2219 encode_open(xdr, args, &hdr);
2220 encode_getfh(xdr, &hdr);
2222 encode_access(xdr, args->access, &hdr);
2223 encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr);
2228 * Encode an OPEN_CONFIRM request
2230 static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req,
2231 struct xdr_stream *xdr,
2232 struct nfs_open_confirmargs *args)
2234 struct compound_hdr hdr = {
2238 encode_compound_hdr(xdr, req, &hdr);
2239 encode_putfh(xdr, args->fh, &hdr);
2240 encode_open_confirm(xdr, args, &hdr);
2245 * Encode an OPEN request with no attributes.
2247 static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req,
2248 struct xdr_stream *xdr,
2249 struct nfs_openargs *args)
2251 struct compound_hdr hdr = {
2252 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2255 encode_compound_hdr(xdr, req, &hdr);
2256 encode_sequence(xdr, &args->seq_args, &hdr);
2257 encode_putfh(xdr, args->fh, &hdr);
2258 encode_open(xdr, args, &hdr);
2260 encode_access(xdr, args->access, &hdr);
2261 encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr);
2266 * Encode an OPEN_DOWNGRADE request
2268 static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req,
2269 struct xdr_stream *xdr,
2270 struct nfs_closeargs *args)
2272 struct compound_hdr hdr = {
2273 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2276 encode_compound_hdr(xdr, req, &hdr);
2277 encode_sequence(xdr, &args->seq_args, &hdr);
2278 encode_putfh(xdr, args->fh, &hdr);
2279 encode_open_downgrade(xdr, args, &hdr);
2280 encode_getfattr(xdr, args->bitmask, &hdr);
2285 * Encode a LOCK request
2287 static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr,
2288 struct nfs_lock_args *args)
2290 struct compound_hdr hdr = {
2291 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2294 encode_compound_hdr(xdr, req, &hdr);
2295 encode_sequence(xdr, &args->seq_args, &hdr);
2296 encode_putfh(xdr, args->fh, &hdr);
2297 encode_lock(xdr, args, &hdr);
2302 * Encode a LOCKT request
2304 static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr,
2305 struct nfs_lockt_args *args)
2307 struct compound_hdr hdr = {
2308 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2311 encode_compound_hdr(xdr, req, &hdr);
2312 encode_sequence(xdr, &args->seq_args, &hdr);
2313 encode_putfh(xdr, args->fh, &hdr);
2314 encode_lockt(xdr, args, &hdr);
2319 * Encode a LOCKU request
2321 static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr,
2322 struct nfs_locku_args *args)
2324 struct compound_hdr hdr = {
2325 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2328 encode_compound_hdr(xdr, req, &hdr);
2329 encode_sequence(xdr, &args->seq_args, &hdr);
2330 encode_putfh(xdr, args->fh, &hdr);
2331 encode_locku(xdr, args, &hdr);
2335 static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req,
2336 struct xdr_stream *xdr,
2337 struct nfs_release_lockowner_args *args)
2339 struct compound_hdr hdr = {
2343 encode_compound_hdr(xdr, req, &hdr);
2344 encode_release_lockowner(xdr, &args->lock_owner, &hdr);
2349 * Encode a READLINK request
2351 static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr,
2352 const struct nfs4_readlink *args)
2354 struct compound_hdr hdr = {
2355 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2358 encode_compound_hdr(xdr, req, &hdr);
2359 encode_sequence(xdr, &args->seq_args, &hdr);
2360 encode_putfh(xdr, args->fh, &hdr);
2361 encode_readlink(xdr, args, req, &hdr);
2363 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
2364 args->pgbase, args->pglen);
2369 * Encode a READDIR request
2371 static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr,
2372 const struct nfs4_readdir_arg *args)
2374 struct compound_hdr hdr = {
2375 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2378 encode_compound_hdr(xdr, req, &hdr);
2379 encode_sequence(xdr, &args->seq_args, &hdr);
2380 encode_putfh(xdr, args->fh, &hdr);
2381 encode_readdir(xdr, args, req, &hdr);
2383 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
2384 args->pgbase, args->count);
2385 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
2386 __func__, hdr.replen << 2, args->pages,
2387 args->pgbase, args->count);
2392 * Encode a READ request
2394 static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr,
2395 struct nfs_readargs *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_read(xdr, args, &hdr);
2406 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
2407 args->pages, args->pgbase, args->count);
2408 req->rq_rcv_buf.flags |= XDRBUF_READ;
2413 * Encode an SETATTR request
2415 static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr,
2416 struct nfs_setattrargs *args)
2418 struct compound_hdr hdr = {
2419 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2422 encode_compound_hdr(xdr, req, &hdr);
2423 encode_sequence(xdr, &args->seq_args, &hdr);
2424 encode_putfh(xdr, args->fh, &hdr);
2425 encode_setattr(xdr, args, args->server, &hdr);
2426 encode_getfattr(xdr, args->bitmask, &hdr);
2431 * Encode a GETACL request
2433 static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
2434 struct nfs_getaclargs *args)
2436 struct compound_hdr hdr = {
2437 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2441 encode_compound_hdr(xdr, req, &hdr);
2442 encode_sequence(xdr, &args->seq_args, &hdr);
2443 encode_putfh(xdr, args->fh, &hdr);
2444 replen = hdr.replen + op_decode_hdr_maxsz + 1;
2445 encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr);
2447 xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
2448 args->acl_pages, args->acl_pgbase, args->acl_len);
2454 * Encode a WRITE request
2456 static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr,
2457 struct nfs_writeargs *args)
2459 struct compound_hdr hdr = {
2460 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2463 encode_compound_hdr(xdr, req, &hdr);
2464 encode_sequence(xdr, &args->seq_args, &hdr);
2465 encode_putfh(xdr, args->fh, &hdr);
2466 encode_write(xdr, args, &hdr);
2467 req->rq_snd_buf.flags |= XDRBUF_WRITE;
2469 encode_getfattr(xdr, args->bitmask, &hdr);
2476 static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
2477 struct nfs_commitargs *args)
2479 struct compound_hdr hdr = {
2480 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2483 encode_compound_hdr(xdr, req, &hdr);
2484 encode_sequence(xdr, &args->seq_args, &hdr);
2485 encode_putfh(xdr, args->fh, &hdr);
2486 encode_commit(xdr, args, &hdr);
2493 static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
2494 struct nfs4_fsinfo_arg *args)
2496 struct compound_hdr hdr = {
2497 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2500 encode_compound_hdr(xdr, req, &hdr);
2501 encode_sequence(xdr, &args->seq_args, &hdr);
2502 encode_putfh(xdr, args->fh, &hdr);
2503 encode_fsinfo(xdr, args->bitmask, &hdr);
2508 * a PATHCONF request
2510 static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
2511 const struct nfs4_pathconf_arg *args)
2513 struct compound_hdr hdr = {
2514 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2517 encode_compound_hdr(xdr, req, &hdr);
2518 encode_sequence(xdr, &args->seq_args, &hdr);
2519 encode_putfh(xdr, args->fh, &hdr);
2520 encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0],
2528 static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
2529 const struct nfs4_statfs_arg *args)
2531 struct compound_hdr hdr = {
2532 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2535 encode_compound_hdr(xdr, req, &hdr);
2536 encode_sequence(xdr, &args->seq_args, &hdr);
2537 encode_putfh(xdr, args->fh, &hdr);
2538 encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0],
2539 args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr);
2544 * GETATTR_BITMAP request
2546 static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
2547 struct xdr_stream *xdr,
2548 struct nfs4_server_caps_arg *args)
2550 struct compound_hdr hdr = {
2551 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2554 encode_compound_hdr(xdr, req, &hdr);
2555 encode_sequence(xdr, &args->seq_args, &hdr);
2556 encode_putfh(xdr, args->fhandle, &hdr);
2557 encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
2558 FATTR4_WORD0_FH_EXPIRE_TYPE|
2559 FATTR4_WORD0_LINK_SUPPORT|
2560 FATTR4_WORD0_SYMLINK_SUPPORT|
2561 FATTR4_WORD0_ACLSUPPORT, &hdr);
2568 static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
2569 struct nfs_client *clp)
2571 struct compound_hdr hdr = {
2575 encode_compound_hdr(xdr, req, &hdr);
2576 encode_renew(xdr, clp->cl_clientid, &hdr);
2581 * a SETCLIENTID request
2583 static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req,
2584 struct xdr_stream *xdr,
2585 struct nfs4_setclientid *sc)
2587 struct compound_hdr hdr = {
2591 encode_compound_hdr(xdr, req, &hdr);
2592 encode_setclientid(xdr, sc, &hdr);
2597 * a SETCLIENTID_CONFIRM request
2599 static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req,
2600 struct xdr_stream *xdr,
2601 struct nfs4_setclientid_res *arg)
2603 struct compound_hdr hdr = {
2606 const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME };
2608 encode_compound_hdr(xdr, req, &hdr);
2609 encode_setclientid_confirm(xdr, arg, &hdr);
2610 encode_putrootfh(xdr, &hdr);
2611 encode_fsinfo(xdr, lease_bitmap, &hdr);
2616 * DELEGRETURN request
2618 static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
2619 struct xdr_stream *xdr,
2620 const struct nfs4_delegreturnargs *args)
2622 struct compound_hdr hdr = {
2623 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2626 encode_compound_hdr(xdr, req, &hdr);
2627 encode_sequence(xdr, &args->seq_args, &hdr);
2628 encode_putfh(xdr, args->fhandle, &hdr);
2629 encode_getfattr(xdr, args->bitmask, &hdr);
2630 encode_delegreturn(xdr, args->stateid, &hdr);
2635 * Encode FS_LOCATIONS request
2637 static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
2638 struct xdr_stream *xdr,
2639 struct nfs4_fs_locations_arg *args)
2641 struct compound_hdr hdr = {
2642 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2646 encode_compound_hdr(xdr, req, &hdr);
2647 encode_sequence(xdr, &args->seq_args, &hdr);
2648 encode_putfh(xdr, args->dir_fh, &hdr);
2649 encode_lookup(xdr, args->name, &hdr);
2650 replen = hdr.replen; /* get the attribute into args->page */
2651 encode_fs_locations(xdr, args->bitmask, &hdr);
2653 xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
2659 * Encode SECINFO request
2661 static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
2662 struct xdr_stream *xdr,
2663 struct nfs4_secinfo_arg *args)
2665 struct compound_hdr hdr = {
2666 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2669 encode_compound_hdr(xdr, req, &hdr);
2670 encode_sequence(xdr, &args->seq_args, &hdr);
2671 encode_putfh(xdr, args->dir_fh, &hdr);
2672 encode_secinfo(xdr, args->name, &hdr);
2676 #if defined(CONFIG_NFS_V4_1)
2678 * BIND_CONN_TO_SESSION request
2680 static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req,
2681 struct xdr_stream *xdr,
2682 struct nfs_client *clp)
2684 struct compound_hdr hdr = {
2685 .minorversion = clp->cl_mvops->minor_version,
2688 encode_compound_hdr(xdr, req, &hdr);
2689 encode_bind_conn_to_session(xdr, clp->cl_session, &hdr);
2694 * EXCHANGE_ID request
2696 static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req,
2697 struct xdr_stream *xdr,
2698 struct nfs41_exchange_id_args *args)
2700 struct compound_hdr hdr = {
2701 .minorversion = args->client->cl_mvops->minor_version,
2704 encode_compound_hdr(xdr, req, &hdr);
2705 encode_exchange_id(xdr, args, &hdr);
2710 * a CREATE_SESSION request
2712 static void nfs4_xdr_enc_create_session(struct rpc_rqst *req,
2713 struct xdr_stream *xdr,
2714 struct nfs41_create_session_args *args)
2716 struct compound_hdr hdr = {
2717 .minorversion = args->client->cl_mvops->minor_version,
2720 encode_compound_hdr(xdr, req, &hdr);
2721 encode_create_session(xdr, args, &hdr);
2726 * a DESTROY_SESSION request
2728 static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req,
2729 struct xdr_stream *xdr,
2730 struct nfs4_session *session)
2732 struct compound_hdr hdr = {
2733 .minorversion = session->clp->cl_mvops->minor_version,
2736 encode_compound_hdr(xdr, req, &hdr);
2737 encode_destroy_session(xdr, session, &hdr);
2742 * a DESTROY_CLIENTID request
2744 static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req,
2745 struct xdr_stream *xdr,
2746 struct nfs_client *clp)
2748 struct compound_hdr hdr = {
2749 .minorversion = clp->cl_mvops->minor_version,
2752 encode_compound_hdr(xdr, req, &hdr);
2753 encode_destroy_clientid(xdr, clp->cl_clientid, &hdr);
2758 * a SEQUENCE request
2760 static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr,
2761 struct nfs4_sequence_args *args)
2763 struct compound_hdr hdr = {
2764 .minorversion = nfs4_xdr_minorversion(args),
2767 encode_compound_hdr(xdr, req, &hdr);
2768 encode_sequence(xdr, args, &hdr);
2773 * a GET_LEASE_TIME request
2775 static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req,
2776 struct xdr_stream *xdr,
2777 struct nfs4_get_lease_time_args *args)
2779 struct compound_hdr hdr = {
2780 .minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
2782 const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME };
2784 encode_compound_hdr(xdr, req, &hdr);
2785 encode_sequence(xdr, &args->la_seq_args, &hdr);
2786 encode_putrootfh(xdr, &hdr);
2787 encode_fsinfo(xdr, lease_bitmap, &hdr);
2792 * a RECLAIM_COMPLETE request
2794 static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req,
2795 struct xdr_stream *xdr,
2796 struct nfs41_reclaim_complete_args *args)
2798 struct compound_hdr hdr = {
2799 .minorversion = nfs4_xdr_minorversion(&args->seq_args)
2802 encode_compound_hdr(xdr, req, &hdr);
2803 encode_sequence(xdr, &args->seq_args, &hdr);
2804 encode_reclaim_complete(xdr, args, &hdr);
2809 * Encode GETDEVICELIST request
2811 static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req,
2812 struct xdr_stream *xdr,
2813 struct nfs4_getdevicelist_args *args)
2815 struct compound_hdr hdr = {
2816 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2819 encode_compound_hdr(xdr, req, &hdr);
2820 encode_sequence(xdr, &args->seq_args, &hdr);
2821 encode_putfh(xdr, args->fh, &hdr);
2822 encode_getdevicelist(xdr, args, &hdr);
2827 * Encode GETDEVICEINFO request
2829 static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req,
2830 struct xdr_stream *xdr,
2831 struct nfs4_getdeviceinfo_args *args)
2833 struct compound_hdr hdr = {
2834 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2837 encode_compound_hdr(xdr, req, &hdr);
2838 encode_sequence(xdr, &args->seq_args, &hdr);
2839 encode_getdeviceinfo(xdr, args, &hdr);
2841 /* set up reply kvec. Subtract notification bitmap max size (2)
2842 * so that notification bitmap is put in xdr_buf tail */
2843 xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2,
2844 args->pdev->pages, args->pdev->pgbase,
2851 * Encode LAYOUTGET request
2853 static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
2854 struct xdr_stream *xdr,
2855 struct nfs4_layoutget_args *args)
2857 struct compound_hdr hdr = {
2858 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2861 encode_compound_hdr(xdr, req, &hdr);
2862 encode_sequence(xdr, &args->seq_args, &hdr);
2863 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2864 encode_layoutget(xdr, args, &hdr);
2866 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
2867 args->layout.pages, 0, args->layout.pglen);
2873 * Encode LAYOUTCOMMIT request
2875 static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req,
2876 struct xdr_stream *xdr,
2877 struct nfs4_layoutcommit_args *args)
2879 struct nfs4_layoutcommit_data *data =
2880 container_of(args, struct nfs4_layoutcommit_data, args);
2881 struct compound_hdr hdr = {
2882 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2885 encode_compound_hdr(xdr, req, &hdr);
2886 encode_sequence(xdr, &args->seq_args, &hdr);
2887 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2888 encode_layoutcommit(xdr, data->args.inode, args, &hdr);
2889 encode_getfattr(xdr, args->bitmask, &hdr);
2894 * Encode LAYOUTRETURN request
2896 static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req,
2897 struct xdr_stream *xdr,
2898 struct nfs4_layoutreturn_args *args)
2900 struct compound_hdr hdr = {
2901 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2904 encode_compound_hdr(xdr, req, &hdr);
2905 encode_sequence(xdr, &args->seq_args, &hdr);
2906 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2907 encode_layoutreturn(xdr, args, &hdr);
2912 * Encode SECINFO_NO_NAME request
2914 static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
2915 struct xdr_stream *xdr,
2916 struct nfs41_secinfo_no_name_args *args)
2918 struct compound_hdr hdr = {
2919 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2922 encode_compound_hdr(xdr, req, &hdr);
2923 encode_sequence(xdr, &args->seq_args, &hdr);
2924 encode_putrootfh(xdr, &hdr);
2925 encode_secinfo_no_name(xdr, args, &hdr);
2931 * Encode TEST_STATEID request
2933 static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req,
2934 struct xdr_stream *xdr,
2935 struct nfs41_test_stateid_args *args)
2937 struct compound_hdr hdr = {
2938 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2941 encode_compound_hdr(xdr, req, &hdr);
2942 encode_sequence(xdr, &args->seq_args, &hdr);
2943 encode_test_stateid(xdr, args, &hdr);
2948 * Encode FREE_STATEID request
2950 static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req,
2951 struct xdr_stream *xdr,
2952 struct nfs41_free_stateid_args *args)
2954 struct compound_hdr hdr = {
2955 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2958 encode_compound_hdr(xdr, req, &hdr);
2959 encode_sequence(xdr, &args->seq_args, &hdr);
2960 encode_free_stateid(xdr, args, &hdr);
2963 #endif /* CONFIG_NFS_V4_1 */
2965 static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
2967 dprintk("nfs: %s: prematurely hit end of receive buffer. "
2968 "Remaining buffer length is %tu words.\n",
2969 func, xdr->end - xdr->p);
2972 static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
2976 p = xdr_inline_decode(xdr, 4);
2979 *len = be32_to_cpup(p);
2980 p = xdr_inline_decode(xdr, *len);
2983 *string = (char *)p;
2986 print_overflow_msg(__func__, xdr);
2990 static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
2994 p = xdr_inline_decode(xdr, 8);
2997 hdr->status = be32_to_cpup(p++);
2998 hdr->taglen = be32_to_cpup(p);
3000 p = xdr_inline_decode(xdr, hdr->taglen + 4);
3003 hdr->tag = (char *)p;
3004 p += XDR_QUADLEN(hdr->taglen);
3005 hdr->nops = be32_to_cpup(p);
3006 if (unlikely(hdr->nops < 1))
3007 return nfs4_stat_to_errno(hdr->status);
3010 print_overflow_msg(__func__, xdr);
3014 static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
3020 p = xdr_inline_decode(xdr, 8);
3023 opnum = be32_to_cpup(p++);
3024 if (opnum != expected) {
3025 dprintk("nfs: Server returned operation"
3026 " %d but we issued a request for %d\n",
3030 nfserr = be32_to_cpup(p);
3031 if (nfserr != NFS_OK)
3032 return nfs4_stat_to_errno(nfserr);
3035 print_overflow_msg(__func__, xdr);
3040 static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp)
3043 unsigned int strlen;
3046 p = xdr_inline_decode(xdr, 12);
3048 return decode_opaque_inline(xdr, &strlen, &str);
3049 print_overflow_msg(__func__, xdr);
3053 static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
3058 p = xdr_inline_decode(xdr, 4);
3061 bmlen = be32_to_cpup(p);
3063 bitmap[0] = bitmap[1] = bitmap[2] = 0;
3064 p = xdr_inline_decode(xdr, (bmlen << 2));
3068 bitmap[0] = be32_to_cpup(p++);
3070 bitmap[1] = be32_to_cpup(p++);
3072 bitmap[2] = be32_to_cpup(p);
3077 print_overflow_msg(__func__, xdr);
3081 static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep)
3085 p = xdr_inline_decode(xdr, 4);
3088 *attrlen = be32_to_cpup(p);
3089 *savep = xdr_stream_pos(xdr);
3092 print_overflow_msg(__func__, xdr);
3096 static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
3098 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
3100 ret = decode_attr_bitmap(xdr, bitmask);
3101 if (unlikely(ret < 0))
3103 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
3105 bitmask[0] = bitmask[1] = bitmask[2] = 0;
3106 dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__,
3107 bitmask[0], bitmask[1], bitmask[2]);
3111 static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
3117 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
3119 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
3120 p = xdr_inline_decode(xdr, 4);
3123 *type = be32_to_cpup(p);
3124 if (*type < NF4REG || *type > NF4NAMEDATTR) {
3125 dprintk("%s: bad type %d\n", __func__, *type);
3128 bitmap[0] &= ~FATTR4_WORD0_TYPE;
3129 ret = NFS_ATTR_FATTR_TYPE;
3131 dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]);
3134 print_overflow_msg(__func__, xdr);
3138 static int decode_attr_fh_expire_type(struct xdr_stream *xdr,
3139 uint32_t *bitmap, uint32_t *type)
3144 if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U)))
3146 if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) {
3147 p = xdr_inline_decode(xdr, 4);
3150 *type = be32_to_cpup(p);
3151 bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE;
3153 dprintk("%s: expire type=0x%x\n", __func__, *type);
3156 print_overflow_msg(__func__, xdr);
3160 static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
3166 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
3168 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
3169 p = xdr_inline_decode(xdr, 8);
3172 xdr_decode_hyper(p, change);
3173 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
3174 ret = NFS_ATTR_FATTR_CHANGE;
3176 dprintk("%s: change attribute=%Lu\n", __func__,
3177 (unsigned long long)*change);
3180 print_overflow_msg(__func__, xdr);
3184 static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
3190 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
3192 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
3193 p = xdr_inline_decode(xdr, 8);
3196 xdr_decode_hyper(p, size);
3197 bitmap[0] &= ~FATTR4_WORD0_SIZE;
3198 ret = NFS_ATTR_FATTR_SIZE;
3200 dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size);
3203 print_overflow_msg(__func__, xdr);
3207 static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3212 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
3214 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
3215 p = xdr_inline_decode(xdr, 4);
3218 *res = be32_to_cpup(p);
3219 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
3221 dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true");
3224 print_overflow_msg(__func__, xdr);
3228 static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3233 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
3235 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
3236 p = xdr_inline_decode(xdr, 4);
3239 *res = be32_to_cpup(p);
3240 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
3242 dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true");
3245 print_overflow_msg(__func__, xdr);
3249 static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid)
3256 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
3258 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
3259 p = xdr_inline_decode(xdr, 16);
3262 p = xdr_decode_hyper(p, &fsid->major);
3263 xdr_decode_hyper(p, &fsid->minor);
3264 bitmap[0] &= ~FATTR4_WORD0_FSID;
3265 ret = NFS_ATTR_FATTR_FSID;
3267 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__,
3268 (unsigned long long)fsid->major,
3269 (unsigned long long)fsid->minor);
3272 print_overflow_msg(__func__, xdr);
3276 static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3281 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
3283 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
3284 p = xdr_inline_decode(xdr, 4);
3287 *res = be32_to_cpup(p);
3288 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
3290 dprintk("%s: file size=%u\n", __func__, (unsigned int)*res);
3293 print_overflow_msg(__func__, xdr);
3297 static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res)
3301 if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U)))
3303 if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) {
3304 p = xdr_inline_decode(xdr, 4);
3307 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
3308 *res = -be32_to_cpup(p);
3312 print_overflow_msg(__func__, xdr);
3316 static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh)
3322 memset(fh, 0, sizeof(*fh));
3324 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U)))
3326 if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) {
3327 p = xdr_inline_decode(xdr, 4);
3330 len = be32_to_cpup(p);
3331 if (len > NFS4_FHSIZE)
3333 p = xdr_inline_decode(xdr, len);
3337 memcpy(fh->data, p, len);
3340 bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE;
3344 print_overflow_msg(__func__, xdr);
3348 static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3352 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
3353 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
3355 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
3356 p = xdr_inline_decode(xdr, 4);
3359 *res = be32_to_cpup(p);
3360 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
3362 dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res);
3365 print_overflow_msg(__func__, xdr);
3369 static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3375 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
3377 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
3378 p = xdr_inline_decode(xdr, 8);
3381 xdr_decode_hyper(p, fileid);
3382 bitmap[0] &= ~FATTR4_WORD0_FILEID;
3383 ret = NFS_ATTR_FATTR_FILEID;
3385 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
3388 print_overflow_msg(__func__, xdr);
3392 static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3398 if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U)))
3400 if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) {
3401 p = xdr_inline_decode(xdr, 8);
3404 xdr_decode_hyper(p, fileid);
3405 bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
3406 ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID;
3408 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
3411 print_overflow_msg(__func__, xdr);
3415 static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3421 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
3423 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
3424 p = xdr_inline_decode(xdr, 8);
3427 xdr_decode_hyper(p, res);
3428 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
3430 dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res);
3433 print_overflow_msg(__func__, xdr);
3437 static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3443 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
3445 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
3446 p = xdr_inline_decode(xdr, 8);
3449 xdr_decode_hyper(p, res);
3450 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
3452 dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res);
3455 print_overflow_msg(__func__, xdr);
3459 static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3465 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
3467 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
3468 p = xdr_inline_decode(xdr, 8);
3471 xdr_decode_hyper(p, res);
3472 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
3474 dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res);
3477 print_overflow_msg(__func__, xdr);
3481 static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
3487 p = xdr_inline_decode(xdr, 4);
3490 n = be32_to_cpup(p);
3493 dprintk("pathname4: ");
3494 if (n > NFS4_PATHNAME_MAXCOMPONENTS) {
3495 dprintk("cannot parse %d components in path\n", n);
3498 for (path->ncomponents = 0; path->ncomponents < n; path->ncomponents++) {
3499 struct nfs4_string *component = &path->components[path->ncomponents];
3500 status = decode_opaque_inline(xdr, &component->len, &component->data);
3501 if (unlikely(status != 0))
3505 (path->ncomponents != n ? "/ " : ""),
3506 component->len, component->data);
3511 /* a root pathname is sent as a zero component4 */
3512 path->ncomponents = 1;
3513 path->components[0].len=0;
3514 path->components[0].data=NULL;
3515 dprintk("pathname4: /\n");
3518 dprintk(" status %d", status);
3522 print_overflow_msg(__func__, xdr);
3526 static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
3532 if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U)))
3535 if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS)))
3538 /* Ignore borken servers that return unrequested attrs */
3539 if (unlikely(res == NULL))
3541 dprintk("%s: fsroot:\n", __func__);
3542 status = decode_pathname(xdr, &res->fs_path);
3543 if (unlikely(status != 0))
3545 p = xdr_inline_decode(xdr, 4);
3548 n = be32_to_cpup(p);
3551 for (res->nlocations = 0; res->nlocations < n; res->nlocations++) {
3553 struct nfs4_fs_location *loc;
3555 if (res->nlocations == NFS4_FS_LOCATIONS_MAXENTRIES)
3557 loc = &res->locations[res->nlocations];
3558 p = xdr_inline_decode(xdr, 4);
3561 m = be32_to_cpup(p);
3563 dprintk("%s: servers:\n", __func__);
3564 for (loc->nservers = 0; loc->nservers < m; loc->nservers++) {
3565 struct nfs4_string *server;
3567 if (loc->nservers == NFS4_FS_LOCATION_MAXSERVERS) {
3569 dprintk("%s: using first %u of %u servers "
3570 "returned for location %u\n",
3572 NFS4_FS_LOCATION_MAXSERVERS,
3573 m, res->nlocations);
3574 for (i = loc->nservers; i < m; i++) {
3577 status = decode_opaque_inline(xdr, &len, &data);
3578 if (unlikely(status != 0))
3583 server = &loc->servers[loc->nservers];
3584 status = decode_opaque_inline(xdr, &server->len, &server->data);
3585 if (unlikely(status != 0))
3587 dprintk("%s ", server->data);
3589 status = decode_pathname(xdr, &loc->rootpath);
3590 if (unlikely(status != 0))
3593 if (res->nlocations != 0)
3594 status = NFS_ATTR_FATTR_V4_LOCATIONS;
3596 dprintk("%s: fs_locations done, error = %d\n", __func__, status);
3599 print_overflow_msg(__func__, xdr);
3605 static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3611 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
3613 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
3614 p = xdr_inline_decode(xdr, 8);
3617 xdr_decode_hyper(p, res);
3618 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
3620 dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res);
3623 print_overflow_msg(__func__, xdr);
3627 static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
3633 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
3635 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
3636 p = xdr_inline_decode(xdr, 4);
3639 *maxlink = be32_to_cpup(p);
3640 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
3642 dprintk("%s: maxlink=%u\n", __func__, *maxlink);
3645 print_overflow_msg(__func__, xdr);
3649 static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
3655 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
3657 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
3658 p = xdr_inline_decode(xdr, 4);
3661 *maxname = be32_to_cpup(p);
3662 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
3664 dprintk("%s: maxname=%u\n", __func__, *maxname);
3667 print_overflow_msg(__func__, xdr);
3671 static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3677 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
3679 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
3681 p = xdr_inline_decode(xdr, 8);
3684 xdr_decode_hyper(p, &maxread);
3685 if (maxread > 0x7FFFFFFF)
3686 maxread = 0x7FFFFFFF;
3687 *res = (uint32_t)maxread;
3688 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
3690 dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res);
3693 print_overflow_msg(__func__, xdr);
3697 static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3703 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
3705 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
3707 p = xdr_inline_decode(xdr, 8);
3710 xdr_decode_hyper(p, &maxwrite);
3711 if (maxwrite > 0x7FFFFFFF)
3712 maxwrite = 0x7FFFFFFF;
3713 *res = (uint32_t)maxwrite;
3714 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
3716 dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res);
3719 print_overflow_msg(__func__, xdr);
3723 static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode)
3730 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
3732 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
3733 p = xdr_inline_decode(xdr, 4);
3736 tmp = be32_to_cpup(p);
3737 *mode = tmp & ~S_IFMT;
3738 bitmap[1] &= ~FATTR4_WORD1_MODE;
3739 ret = NFS_ATTR_FATTR_MODE;
3741 dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode);
3744 print_overflow_msg(__func__, xdr);
3748 static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
3754 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
3756 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
3757 p = xdr_inline_decode(xdr, 4);
3760 *nlink = be32_to_cpup(p);
3761 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
3762 ret = NFS_ATTR_FATTR_NLINK;
3764 dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink);
3767 print_overflow_msg(__func__, xdr);
3771 static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
3772 const struct nfs_server *server, kuid_t *uid,
3773 struct nfs4_string *owner_name)
3779 *uid = make_kuid(&init_user_ns, -2);
3780 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
3782 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
3783 p = xdr_inline_decode(xdr, 4);
3786 len = be32_to_cpup(p);
3787 p = xdr_inline_decode(xdr, len);
3790 if (owner_name != NULL) {
3791 owner_name->data = kmemdup(p, len, GFP_NOWAIT);
3792 if (owner_name->data != NULL) {
3793 owner_name->len = len;
3794 ret = NFS_ATTR_FATTR_OWNER_NAME;
3796 } else if (len < XDR_MAX_NETOBJ) {
3797 if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0)
3798 ret = NFS_ATTR_FATTR_OWNER;
3800 dprintk("%s: nfs_map_name_to_uid failed!\n",
3803 dprintk("%s: name too long (%u)!\n",
3805 bitmap[1] &= ~FATTR4_WORD1_OWNER;
3807 dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid));
3810 print_overflow_msg(__func__, xdr);
3814 static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
3815 const struct nfs_server *server, kgid_t *gid,
3816 struct nfs4_string *group_name)
3822 *gid = make_kgid(&init_user_ns, -2);
3823 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
3825 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
3826 p = xdr_inline_decode(xdr, 4);
3829 len = be32_to_cpup(p);
3830 p = xdr_inline_decode(xdr, len);
3833 if (group_name != NULL) {
3834 group_name->data = kmemdup(p, len, GFP_NOWAIT);
3835 if (group_name->data != NULL) {
3836 group_name->len = len;
3837 ret = NFS_ATTR_FATTR_GROUP_NAME;
3839 } else if (len < XDR_MAX_NETOBJ) {
3840 if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0)
3841 ret = NFS_ATTR_FATTR_GROUP;
3843 dprintk("%s: nfs_map_group_to_gid failed!\n",
3846 dprintk("%s: name too long (%u)!\n",
3848 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
3850 dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid));
3853 print_overflow_msg(__func__, xdr);
3857 static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
3859 uint32_t major = 0, minor = 0;
3864 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
3866 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
3869 p = xdr_inline_decode(xdr, 8);
3872 major = be32_to_cpup(p++);
3873 minor = be32_to_cpup(p);
3874 tmp = MKDEV(major, minor);
3875 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
3877 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
3878 ret = NFS_ATTR_FATTR_RDEV;
3880 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor);
3883 print_overflow_msg(__func__, xdr);
3887 static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3893 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
3895 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
3896 p = xdr_inline_decode(xdr, 8);
3899 xdr_decode_hyper(p, res);
3900 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
3902 dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res);
3905 print_overflow_msg(__func__, xdr);
3909 static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3915 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
3917 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
3918 p = xdr_inline_decode(xdr, 8);
3921 xdr_decode_hyper(p, res);
3922 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
3924 dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res);
3927 print_overflow_msg(__func__, xdr);
3931 static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3937 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
3939 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
3940 p = xdr_inline_decode(xdr, 8);
3943 xdr_decode_hyper(p, res);
3944 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
3946 dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res);
3949 print_overflow_msg(__func__, xdr);
3953 static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
3959 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
3961 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
3962 p = xdr_inline_decode(xdr, 8);
3965 xdr_decode_hyper(p, used);
3966 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
3967 ret = NFS_ATTR_FATTR_SPACE_USED;
3969 dprintk("%s: space used=%Lu\n", __func__,
3970 (unsigned long long)*used);
3973 print_overflow_msg(__func__, xdr);
3977 static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
3983 p = xdr_inline_decode(xdr, 12);
3986 p = xdr_decode_hyper(p, &sec);
3987 nsec = be32_to_cpup(p);
3988 time->tv_sec = (time_t)sec;
3989 time->tv_nsec = (long)nsec;
3992 print_overflow_msg(__func__, xdr);
3996 static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4002 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
4004 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
4005 status = decode_attr_time(xdr, time);
4007 status = NFS_ATTR_FATTR_ATIME;
4008 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
4010 dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec);
4014 static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4020 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
4022 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
4023 status = decode_attr_time(xdr, time);
4025 status = NFS_ATTR_FATTR_CTIME;
4026 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
4028 dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec);
4032 static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap,
4033 struct timespec *time)
4039 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U)))
4041 if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) {
4042 status = decode_attr_time(xdr, time);
4043 bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA;
4045 dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec,
4046 (long)time->tv_nsec);
4050 static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4056 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
4058 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
4059 status = decode_attr_time(xdr, time);
4061 status = NFS_ATTR_FATTR_MTIME;
4062 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
4064 dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec);
4068 static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen)
4070 unsigned int attrwords = XDR_QUADLEN(attrlen);
4071 unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2;
4073 if (unlikely(attrwords != nwords)) {
4074 dprintk("%s: server returned incorrect attribute length: "
4078 (attrwords < nwords) ? '<' : '>',
4085 static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4089 p = xdr_inline_decode(xdr, 20);
4092 cinfo->atomic = be32_to_cpup(p++);
4093 p = xdr_decode_hyper(p, &cinfo->before);
4094 xdr_decode_hyper(p, &cinfo->after);
4097 print_overflow_msg(__func__, xdr);
4101 static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access)
4107 status = decode_op_hdr(xdr, OP_ACCESS);
4110 p = xdr_inline_decode(xdr, 8);
4113 supp = be32_to_cpup(p++);
4114 acc = be32_to_cpup(p);
4119 print_overflow_msg(__func__, xdr);
4123 static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len)
4127 p = xdr_inline_decode(xdr, len);
4129 memcpy(buf, p, len);
4132 print_overflow_msg(__func__, xdr);
4136 static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
4138 return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE);
4141 static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
4145 status = decode_op_hdr(xdr, OP_CLOSE);
4147 nfs_increment_open_seqid(status, res->seqid);
4149 status = decode_stateid(xdr, &res->stateid);
4153 static int decode_verifier(struct xdr_stream *xdr, void *verifier)
4155 return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE);
4158 static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier)
4160 return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE);
4163 static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res)
4167 status = decode_op_hdr(xdr, OP_COMMIT);
4169 status = decode_write_verifier(xdr, &res->verf->verifier);
4173 static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4179 status = decode_op_hdr(xdr, OP_CREATE);
4182 if ((status = decode_change_info(xdr, cinfo)))
4184 p = xdr_inline_decode(xdr, 4);
4187 bmlen = be32_to_cpup(p);
4188 p = xdr_inline_decode(xdr, bmlen << 2);
4192 print_overflow_msg(__func__, xdr);
4196 static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
4199 uint32_t attrlen, bitmap[3] = {0};
4202 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4204 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4206 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4208 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
4210 if ((status = decode_attr_fh_expire_type(xdr, bitmap,
4211 &res->fh_expire_type)) != 0)
4213 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
4215 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
4217 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
4219 status = verify_attr_len(xdr, savep, attrlen);
4221 dprintk("%s: xdr returned %d!\n", __func__, -status);
4225 static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
4228 uint32_t attrlen, bitmap[3] = {0};
4231 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4233 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4235 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4238 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
4240 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
4242 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
4244 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
4246 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
4248 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
4251 status = verify_attr_len(xdr, savep, attrlen);
4253 dprintk("%s: xdr returned %d!\n", __func__, -status);
4257 static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
4260 uint32_t attrlen, bitmap[3] = {0};
4263 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4265 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4267 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4270 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
4272 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
4275 status = verify_attr_len(xdr, savep, attrlen);
4277 dprintk("%s: xdr returned %d!\n", __func__, -status);
4281 static int decode_threshold_hint(struct xdr_stream *xdr,
4289 if (likely(bitmap[0] & hint_bit)) {
4290 p = xdr_inline_decode(xdr, 8);
4293 xdr_decode_hyper(p, res);
4297 print_overflow_msg(__func__, xdr);
4301 static int decode_first_threshold_item4(struct xdr_stream *xdr,
4302 struct nfs4_threshold *res)
4306 uint32_t bitmap[3] = {0,}, attrlen;
4310 p = xdr_inline_decode(xdr, 4);
4312 print_overflow_msg(__func__, xdr);
4315 res->l_type = be32_to_cpup(p);
4317 /* thi_hintset bitmap */
4318 status = decode_attr_bitmap(xdr, bitmap);
4322 /* thi_hintlist length */
4323 status = decode_attr_length(xdr, &attrlen, &savep);
4327 status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD);
4330 status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR);
4333 status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz,
4337 status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz,
4342 status = verify_attr_len(xdr, savep, attrlen);
4343 res->bm = bitmap[0];
4345 dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n",
4346 __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz,
4349 dprintk("%s ret=%d!\n", __func__, status);
4354 * Thresholds on pNFS direct I/O vrs MDS I/O
4356 static int decode_attr_mdsthreshold(struct xdr_stream *xdr,
4358 struct nfs4_threshold *res)
4364 if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U)))
4366 if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) {
4367 /* Did the server return an unrequested attribute? */
4368 if (unlikely(res == NULL))
4370 p = xdr_inline_decode(xdr, 4);
4373 num = be32_to_cpup(p);
4377 printk(KERN_INFO "%s: Warning: Multiple pNFS layout "
4378 "drivers per filesystem not supported\n",
4381 status = decode_first_threshold_item4(xdr, res);
4382 bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD;
4386 print_overflow_msg(__func__, xdr);
4390 static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap,
4391 struct nfs_fattr *fattr, struct nfs_fh *fh,
4392 struct nfs4_fs_locations *fs_loc,
4393 const struct nfs_server *server)
4400 status = decode_attr_type(xdr, bitmap, &type);
4405 fattr->mode |= nfs_type2fmt[type];
4406 fattr->valid |= status;
4409 status = decode_attr_change(xdr, bitmap, &fattr->change_attr);
4412 fattr->valid |= status;
4414 status = decode_attr_size(xdr, bitmap, &fattr->size);
4417 fattr->valid |= status;
4419 status = decode_attr_fsid(xdr, bitmap, &fattr->fsid);
4422 fattr->valid |= status;
4425 status = decode_attr_error(xdr, bitmap, &err);
4429 status = decode_attr_filehandle(xdr, bitmap, fh);
4433 status = decode_attr_fileid(xdr, bitmap, &fattr->fileid);
4436 fattr->valid |= status;
4438 status = decode_attr_fs_locations(xdr, bitmap, fs_loc);
4441 fattr->valid |= status;
4443 status = decode_attr_mode(xdr, bitmap, &fmode);
4447 fattr->mode |= fmode;
4448 fattr->valid |= status;
4451 status = decode_attr_nlink(xdr, bitmap, &fattr->nlink);
4454 fattr->valid |= status;
4456 status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name);
4459 fattr->valid |= status;
4461 status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name);
4464 fattr->valid |= status;
4466 status = decode_attr_rdev(xdr, bitmap, &fattr->rdev);
4469 fattr->valid |= status;
4471 status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used);
4474 fattr->valid |= status;
4476 status = decode_attr_time_access(xdr, bitmap, &fattr->atime);
4479 fattr->valid |= status;
4481 status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime);
4484 fattr->valid |= status;
4486 status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime);
4489 fattr->valid |= status;
4491 status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid);
4494 fattr->valid |= status;
4496 status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold);
4501 dprintk("%s: xdr returned %d\n", __func__, -status);
4505 static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr,
4506 struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc,
4507 const struct nfs_server *server)
4514 status = decode_op_hdr(xdr, OP_GETATTR);
4518 status = decode_attr_bitmap(xdr, bitmap);
4522 status = decode_attr_length(xdr, &attrlen, &savep);
4526 status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, server);
4530 status = verify_attr_len(xdr, savep, attrlen);
4532 dprintk("%s: xdr returned %d\n", __func__, -status);
4536 static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr,
4537 const struct nfs_server *server)
4539 return decode_getfattr_generic(xdr, fattr, NULL, NULL, server);
4543 * Decode potentially multiple layout types. Currently we only support
4544 * one layout driver per file system.
4546 static int decode_first_pnfs_layout_type(struct xdr_stream *xdr,
4547 uint32_t *layouttype)
4552 p = xdr_inline_decode(xdr, 4);
4555 num = be32_to_cpup(p);
4557 /* pNFS is not supported by the underlying file system */
4563 printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout "
4564 "drivers per filesystem not supported\n", __func__);
4566 /* Decode and set first layout type, move xdr->p past unused types */
4567 p = xdr_inline_decode(xdr, num * 4);
4570 *layouttype = be32_to_cpup(p);
4573 print_overflow_msg(__func__, xdr);
4578 * The type of file system exported.
4579 * Note we must ensure that layouttype is set in any non-error case.
4581 static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap,
4582 uint32_t *layouttype)
4586 dprintk("%s: bitmap is %x\n", __func__, bitmap[1]);
4587 if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U)))
4589 if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) {
4590 status = decode_first_pnfs_layout_type(xdr, layouttype);
4591 bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES;
4598 * The prefered block size for layout directed io
4600 static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap,
4605 dprintk("%s: bitmap is %x\n", __func__, bitmap[2]);
4607 if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) {
4608 p = xdr_inline_decode(xdr, 4);
4610 print_overflow_msg(__func__, xdr);
4613 *res = be32_to_cpup(p);
4614 bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE;
4619 static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
4622 uint32_t attrlen, bitmap[3];
4625 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4627 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4629 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4632 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
4634 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
4636 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
4638 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
4640 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
4641 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
4643 fsinfo->wtpref = fsinfo->wtmax;
4644 status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta);
4647 status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype);
4650 status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize);
4654 status = verify_attr_len(xdr, savep, attrlen);
4656 dprintk("%s: xdr returned %d!\n", __func__, -status);
4660 static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
4666 /* Zero handle first to allow comparisons */
4667 memset(fh, 0, sizeof(*fh));
4669 status = decode_op_hdr(xdr, OP_GETFH);
4673 p = xdr_inline_decode(xdr, 4);
4676 len = be32_to_cpup(p);
4677 if (len > NFS4_FHSIZE)
4680 p = xdr_inline_decode(xdr, len);
4683 memcpy(fh->data, p, len);
4686 print_overflow_msg(__func__, xdr);
4690 static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4694 status = decode_op_hdr(xdr, OP_LINK);
4697 return decode_change_info(xdr, cinfo);
4701 * We create the owner, so we know a proper owner.id length is 4.
4703 static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
4705 uint64_t offset, length, clientid;
4707 uint32_t namelen, type;
4709 p = xdr_inline_decode(xdr, 32); /* read 32 bytes */
4712 p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */
4713 p = xdr_decode_hyper(p, &length);
4714 type = be32_to_cpup(p++); /* 4 byte read */
4715 if (fl != NULL) { /* manipulate file lock */
4716 fl->fl_start = (loff_t)offset;
4717 fl->fl_end = fl->fl_start + (loff_t)length - 1;
4718 if (length == ~(uint64_t)0)
4719 fl->fl_end = OFFSET_MAX;
4720 fl->fl_type = F_WRLCK;
4722 fl->fl_type = F_RDLCK;
4725 p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */
4726 namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */
4727 p = xdr_inline_decode(xdr, namelen); /* variable size field */
4729 return -NFS4ERR_DENIED;
4731 print_overflow_msg(__func__, xdr);
4735 static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res)
4739 status = decode_op_hdr(xdr, OP_LOCK);
4743 status = decode_stateid(xdr, &res->stateid);
4744 if (unlikely(status))
4746 } else if (status == -NFS4ERR_DENIED)
4747 status = decode_lock_denied(xdr, NULL);
4748 if (res->open_seqid != NULL)
4749 nfs_increment_open_seqid(status, res->open_seqid);
4750 nfs_increment_lock_seqid(status, res->lock_seqid);
4755 static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res)
4758 status = decode_op_hdr(xdr, OP_LOCKT);
4759 if (status == -NFS4ERR_DENIED)
4760 return decode_lock_denied(xdr, res->denied);
4764 static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
4768 status = decode_op_hdr(xdr, OP_LOCKU);
4770 nfs_increment_lock_seqid(status, res->seqid);
4772 status = decode_stateid(xdr, &res->stateid);
4776 static int decode_release_lockowner(struct xdr_stream *xdr)
4778 return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER);
4781 static int decode_lookup(struct xdr_stream *xdr)
4783 return decode_op_hdr(xdr, OP_LOOKUP);
4786 /* This is too sick! */
4787 static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
4790 uint32_t limit_type, nblocks, blocksize;
4792 p = xdr_inline_decode(xdr, 12);
4795 limit_type = be32_to_cpup(p++);
4796 switch (limit_type) {
4798 xdr_decode_hyper(p, maxsize);
4801 nblocks = be32_to_cpup(p++);
4802 blocksize = be32_to_cpup(p);
4803 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
4807 print_overflow_msg(__func__, xdr);
4811 static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
4814 uint32_t delegation_type;
4817 p = xdr_inline_decode(xdr, 4);
4820 delegation_type = be32_to_cpup(p);
4821 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
4822 res->delegation_type = 0;
4825 status = decode_stateid(xdr, &res->delegation);
4826 if (unlikely(status))
4828 p = xdr_inline_decode(xdr, 4);
4831 res->do_recall = be32_to_cpup(p);
4833 switch (delegation_type) {
4834 case NFS4_OPEN_DELEGATE_READ:
4835 res->delegation_type = FMODE_READ;
4837 case NFS4_OPEN_DELEGATE_WRITE:
4838 res->delegation_type = FMODE_WRITE|FMODE_READ;
4839 if (decode_space_limit(xdr, &res->maxsize) < 0)
4842 return decode_ace(xdr, NULL, res->server->nfs_client);
4844 print_overflow_msg(__func__, xdr);
4848 static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
4851 uint32_t savewords, bmlen, i;
4854 status = decode_op_hdr(xdr, OP_OPEN);
4856 nfs_increment_open_seqid(status, res->seqid);
4858 status = decode_stateid(xdr, &res->stateid);
4859 if (unlikely(status))
4862 decode_change_info(xdr, &res->cinfo);
4864 p = xdr_inline_decode(xdr, 8);
4867 res->rflags = be32_to_cpup(p++);
4868 bmlen = be32_to_cpup(p);
4872 p = xdr_inline_decode(xdr, bmlen << 2);
4875 savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE);
4876 for (i = 0; i < savewords; ++i)
4877 res->attrset[i] = be32_to_cpup(p++);
4878 for (; i < NFS4_BITMAP_SIZE; i++)
4879 res->attrset[i] = 0;
4881 return decode_delegation(xdr, res);
4883 dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen);
4886 print_overflow_msg(__func__, xdr);
4890 static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
4894 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
4896 nfs_increment_open_seqid(status, res->seqid);
4898 status = decode_stateid(xdr, &res->stateid);
4902 static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
4906 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
4908 nfs_increment_open_seqid(status, res->seqid);
4910 status = decode_stateid(xdr, &res->stateid);
4914 static int decode_putfh(struct xdr_stream *xdr)
4916 return decode_op_hdr(xdr, OP_PUTFH);
4919 static int decode_putrootfh(struct xdr_stream *xdr)
4921 return decode_op_hdr(xdr, OP_PUTROOTFH);
4924 static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res)
4927 uint32_t count, eof, recvd;
4930 status = decode_op_hdr(xdr, OP_READ);
4933 p = xdr_inline_decode(xdr, 8);
4936 eof = be32_to_cpup(p++);
4937 count = be32_to_cpup(p);
4938 recvd = xdr_read_pages(xdr, count);
4939 if (count > recvd) {
4940 dprintk("NFS: server cheating in read reply: "
4941 "count %u > recvd %u\n", count, recvd);
4949 print_overflow_msg(__func__, xdr);
4953 static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
4958 status = decode_op_hdr(xdr, OP_READDIR);
4960 status = decode_verifier(xdr, readdir->verifier.data);
4961 if (unlikely(status))
4963 memcpy(verf, readdir->verifier.data, sizeof(verf));
4964 dprintk("%s: verifier = %08x:%08x\n",
4965 __func__, verf[0], verf[1]);
4966 return xdr_read_pages(xdr, xdr->buf->page_len);
4969 static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
4971 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
4976 status = decode_op_hdr(xdr, OP_READLINK);
4980 /* Convert length of symlink */
4981 p = xdr_inline_decode(xdr, 4);
4984 len = be32_to_cpup(p);
4985 if (len >= rcvbuf->page_len || len <= 0) {
4986 dprintk("nfs: server returned giant symlink!\n");
4987 return -ENAMETOOLONG;
4989 recvd = xdr_read_pages(xdr, len);
4991 dprintk("NFS: server cheating in readlink reply: "
4992 "count %u > recvd %u\n", len, recvd);
4996 * The XDR encode routine has set things up so that
4997 * the link text will be copied directly into the
4998 * buffer. We just have to do overflow-checking,
4999 * and and null-terminate the text (the VFS expects
5000 * null-termination).
5002 xdr_terminate_string(rcvbuf, len);
5005 print_overflow_msg(__func__, xdr);
5009 static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
5013 status = decode_op_hdr(xdr, OP_REMOVE);
5016 status = decode_change_info(xdr, cinfo);
5021 static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
5022 struct nfs4_change_info *new_cinfo)
5026 status = decode_op_hdr(xdr, OP_RENAME);
5029 if ((status = decode_change_info(xdr, old_cinfo)))
5031 status = decode_change_info(xdr, new_cinfo);
5036 static int decode_renew(struct xdr_stream *xdr)
5038 return decode_op_hdr(xdr, OP_RENEW);
5042 decode_restorefh(struct xdr_stream *xdr)
5044 return decode_op_hdr(xdr, OP_RESTOREFH);
5047 static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
5048 struct nfs_getaclres *res)
5054 unsigned int pg_offset;
5057 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
5060 xdr_enter_page(xdr, xdr->buf->page_len);
5062 /* Calculate the offset of the page data */
5063 pg_offset = xdr->buf->head[0].iov_len;
5065 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
5067 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
5070 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
5072 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
5074 /* The bitmap (xdr len + bitmaps) and the attr xdr len words
5075 * are stored with the acl data to handle the problem of
5076 * variable length bitmaps.*/
5077 res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset;
5078 res->acl_len = attrlen;
5080 /* Check for receive buffer overflow */
5081 if (res->acl_len > (xdr->nwords << 2) ||
5082 res->acl_len + res->acl_data_offset > xdr->buf->page_len) {
5083 res->acl_flags |= NFS4_ACL_TRUNC;
5084 dprintk("NFS: acl reply: attrlen %u > page_len %u\n",
5085 attrlen, xdr->nwords << 2);
5088 status = -EOPNOTSUPP;
5095 decode_savefh(struct xdr_stream *xdr)
5097 return decode_op_hdr(xdr, OP_SAVEFH);
5100 static int decode_setattr(struct xdr_stream *xdr)
5106 status = decode_op_hdr(xdr, OP_SETATTR);
5109 p = xdr_inline_decode(xdr, 4);
5112 bmlen = be32_to_cpup(p);
5113 p = xdr_inline_decode(xdr, bmlen << 2);
5117 print_overflow_msg(__func__, xdr);
5121 static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res)
5127 p = xdr_inline_decode(xdr, 8);
5130 opnum = be32_to_cpup(p++);
5131 if (opnum != OP_SETCLIENTID) {
5132 dprintk("nfs: decode_setclientid: Server returned operation"
5136 nfserr = be32_to_cpup(p);
5137 if (nfserr == NFS_OK) {
5138 p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE);
5141 p = xdr_decode_hyper(p, &res->clientid);
5142 memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE);
5143 } else if (nfserr == NFSERR_CLID_INUSE) {
5146 /* skip netid string */
5147 p = xdr_inline_decode(xdr, 4);
5150 len = be32_to_cpup(p);
5151 p = xdr_inline_decode(xdr, len);
5155 /* skip uaddr string */
5156 p = xdr_inline_decode(xdr, 4);
5159 len = be32_to_cpup(p);
5160 p = xdr_inline_decode(xdr, len);
5163 return -NFSERR_CLID_INUSE;
5165 return nfs4_stat_to_errno(nfserr);
5169 print_overflow_msg(__func__, xdr);
5173 static int decode_setclientid_confirm(struct xdr_stream *xdr)
5175 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
5178 static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
5183 status = decode_op_hdr(xdr, OP_WRITE);
5187 p = xdr_inline_decode(xdr, 8);
5190 res->count = be32_to_cpup(p++);
5191 res->verf->committed = be32_to_cpup(p++);
5192 return decode_write_verifier(xdr, &res->verf->verifier);
5194 print_overflow_msg(__func__, xdr);
5198 static int decode_delegreturn(struct xdr_stream *xdr)
5200 return decode_op_hdr(xdr, OP_DELEGRETURN);
5203 static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor)
5207 p = xdr_inline_decode(xdr, 4);
5210 flavor->gss.sec_oid4.len = be32_to_cpup(p);
5211 if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN)
5214 p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len);
5217 memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len);
5219 p = xdr_inline_decode(xdr, 8);
5222 flavor->gss.qop4 = be32_to_cpup(p++);
5223 flavor->gss.service = be32_to_cpup(p);
5228 print_overflow_msg(__func__, xdr);
5234 static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
5236 struct nfs4_secinfo_flavor *sec_flavor;
5241 p = xdr_inline_decode(xdr, 4);
5245 res->flavors->num_flavors = 0;
5246 num_flavors = be32_to_cpup(p);
5248 for (i = 0; i < num_flavors; i++) {
5249 sec_flavor = &res->flavors->flavors[i];
5250 if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE)
5253 p = xdr_inline_decode(xdr, 4);
5256 sec_flavor->flavor = be32_to_cpup(p);
5258 if (sec_flavor->flavor == RPC_AUTH_GSS) {
5259 status = decode_secinfo_gss(xdr, sec_flavor);
5263 res->flavors->num_flavors++;
5270 print_overflow_msg(__func__, xdr);
5274 static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
5276 int status = decode_op_hdr(xdr, OP_SECINFO);
5279 return decode_secinfo_common(xdr, res);
5282 #if defined(CONFIG_NFS_V4_1)
5283 static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
5285 int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME);
5288 return decode_secinfo_common(xdr, res);
5291 static int decode_exchange_id(struct xdr_stream *xdr,
5292 struct nfs41_exchange_id_res *res)
5298 uint32_t impl_id_count;
5300 status = decode_op_hdr(xdr, OP_EXCHANGE_ID);
5304 p = xdr_inline_decode(xdr, 8);
5307 xdr_decode_hyper(p, &res->clientid);
5308 p = xdr_inline_decode(xdr, 12);
5311 res->seqid = be32_to_cpup(p++);
5312 res->flags = be32_to_cpup(p++);
5314 /* We ask for SP4_NONE */
5315 dummy = be32_to_cpup(p);
5316 if (dummy != SP4_NONE)
5319 /* server_owner4.so_minor_id */
5320 p = xdr_inline_decode(xdr, 8);
5323 p = xdr_decode_hyper(p, &res->server_owner->minor_id);
5325 /* server_owner4.so_major_id */
5326 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5327 if (unlikely(status))
5329 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5331 memcpy(res->server_owner->major_id, dummy_str, dummy);
5332 res->server_owner->major_id_sz = dummy;
5335 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5336 if (unlikely(status))
5338 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5340 memcpy(res->server_scope->server_scope, dummy_str, dummy);
5341 res->server_scope->server_scope_sz = dummy;
5343 /* Implementation Id */
5344 p = xdr_inline_decode(xdr, 4);
5347 impl_id_count = be32_to_cpup(p++);
5349 if (impl_id_count) {
5351 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5352 if (unlikely(status))
5354 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5356 memcpy(res->impl_id->domain, dummy_str, dummy);
5359 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5360 if (unlikely(status))
5362 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5364 memcpy(res->impl_id->name, dummy_str, dummy);
5367 p = xdr_inline_decode(xdr, 12);
5370 p = xdr_decode_hyper(p, &res->impl_id->date.seconds);
5371 res->impl_id->date.nseconds = be32_to_cpup(p);
5373 /* if there's more than one entry, ignore the rest */
5377 print_overflow_msg(__func__, xdr);
5381 static int decode_chan_attrs(struct xdr_stream *xdr,
5382 struct nfs4_channel_attrs *attrs)
5387 p = xdr_inline_decode(xdr, 28);
5390 val = be32_to_cpup(p++); /* headerpadsz */
5392 return -EINVAL; /* no support for header padding yet */
5393 attrs->max_rqst_sz = be32_to_cpup(p++);
5394 attrs->max_resp_sz = be32_to_cpup(p++);
5395 attrs->max_resp_sz_cached = be32_to_cpup(p++);
5396 attrs->max_ops = be32_to_cpup(p++);
5397 attrs->max_reqs = be32_to_cpup(p++);
5398 nr_attrs = be32_to_cpup(p);
5399 if (unlikely(nr_attrs > 1)) {
5400 printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs "
5401 "count %u\n", __func__, nr_attrs);
5404 if (nr_attrs == 1) {
5405 p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */
5411 print_overflow_msg(__func__, xdr);
5415 static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid)
5417 return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN);
5420 static int decode_bind_conn_to_session(struct xdr_stream *xdr,
5421 struct nfs41_bind_conn_to_session_res *res)
5426 status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION);
5428 status = decode_sessionid(xdr, &res->session->sess_id);
5429 if (unlikely(status))
5432 /* dir flags, rdma mode bool */
5433 p = xdr_inline_decode(xdr, 8);
5437 res->dir = be32_to_cpup(p++);
5438 if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH)
5440 if (be32_to_cpup(p) == 0)
5441 res->use_conn_in_rdma_mode = false;
5443 res->use_conn_in_rdma_mode = true;
5447 print_overflow_msg(__func__, xdr);
5451 static int decode_create_session(struct xdr_stream *xdr,
5452 struct nfs41_create_session_res *res)
5456 struct nfs_client *clp = res->client;
5457 struct nfs4_session *session = clp->cl_session;
5459 status = decode_op_hdr(xdr, OP_CREATE_SESSION);
5461 status = decode_sessionid(xdr, &session->sess_id);
5462 if (unlikely(status))
5466 p = xdr_inline_decode(xdr, 8);
5469 clp->cl_seqid = be32_to_cpup(p++);
5470 session->flags = be32_to_cpup(p);
5472 /* Channel attributes */
5473 status = decode_chan_attrs(xdr, &session->fc_attrs);
5475 status = decode_chan_attrs(xdr, &session->bc_attrs);
5478 print_overflow_msg(__func__, xdr);
5482 static int decode_destroy_session(struct xdr_stream *xdr, void *dummy)
5484 return decode_op_hdr(xdr, OP_DESTROY_SESSION);
5487 static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy)
5489 return decode_op_hdr(xdr, OP_DESTROY_CLIENTID);
5492 static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy)
5494 return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE);
5496 #endif /* CONFIG_NFS_V4_1 */
5498 static int decode_sequence(struct xdr_stream *xdr,
5499 struct nfs4_sequence_res *res,
5500 struct rpc_rqst *rqstp)
5502 #if defined(CONFIG_NFS_V4_1)
5503 struct nfs4_session *session;
5504 struct nfs4_sessionid id;
5509 if (res->sr_slot == NULL)
5512 status = decode_op_hdr(xdr, OP_SEQUENCE);
5514 status = decode_sessionid(xdr, &id);
5515 if (unlikely(status))
5519 * If the server returns different values for sessionID, slotID or
5520 * sequence number, the server is looney tunes.
5522 status = -EREMOTEIO;
5523 session = res->sr_slot->table->session;
5525 if (memcmp(id.data, session->sess_id.data,
5526 NFS4_MAX_SESSIONID_LEN)) {
5527 dprintk("%s Invalid session id\n", __func__);
5531 p = xdr_inline_decode(xdr, 20);
5536 dummy = be32_to_cpup(p++);
5537 if (dummy != res->sr_slot->seq_nr) {
5538 dprintk("%s Invalid sequence number\n", __func__);
5542 dummy = be32_to_cpup(p++);
5543 if (dummy != res->sr_slot->slot_nr) {
5544 dprintk("%s Invalid slot id\n", __func__);
5547 /* highest slot id */
5548 res->sr_highest_slotid = be32_to_cpup(p++);
5549 /* target highest slot id */
5550 res->sr_target_highest_slotid = be32_to_cpup(p++);
5552 res->sr_status_flags = be32_to_cpup(p);
5555 res->sr_status = status;
5558 print_overflow_msg(__func__, xdr);
5561 #else /* CONFIG_NFS_V4_1 */
5563 #endif /* CONFIG_NFS_V4_1 */
5566 #if defined(CONFIG_NFS_V4_1)
5568 * TODO: Need to handle case when EOF != true;
5570 static int decode_getdevicelist(struct xdr_stream *xdr,
5571 struct pnfs_devicelist *res)
5575 nfs4_verifier verftemp;
5577 status = decode_op_hdr(xdr, OP_GETDEVICELIST);
5581 p = xdr_inline_decode(xdr, 8 + 8 + 4);
5585 /* TODO: Skip cookie for now */
5589 p = xdr_decode_opaque_fixed(p, verftemp.data, NFS4_VERIFIER_SIZE);
5591 res->num_devs = be32_to_cpup(p);
5593 dprintk("%s: num_dev %d\n", __func__, res->num_devs);
5595 if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) {
5596 printk(KERN_ERR "NFS: %s too many result dev_num %u\n",
5597 __func__, res->num_devs);
5601 p = xdr_inline_decode(xdr,
5602 res->num_devs * NFS4_DEVICEID4_SIZE + 4);
5605 for (i = 0; i < res->num_devs; i++)
5606 p = xdr_decode_opaque_fixed(p, res->dev_id[i].data,
5607 NFS4_DEVICEID4_SIZE);
5608 res->eof = be32_to_cpup(p);
5611 print_overflow_msg(__func__, xdr);
5615 static int decode_getdeviceinfo(struct xdr_stream *xdr,
5616 struct pnfs_device *pdev)
5622 status = decode_op_hdr(xdr, OP_GETDEVICEINFO);
5624 if (status == -ETOOSMALL) {
5625 p = xdr_inline_decode(xdr, 4);
5628 pdev->mincount = be32_to_cpup(p);
5629 dprintk("%s: Min count too small. mincnt = %u\n",
5630 __func__, pdev->mincount);
5635 p = xdr_inline_decode(xdr, 8);
5638 type = be32_to_cpup(p++);
5639 if (type != pdev->layout_type) {
5640 dprintk("%s: layout mismatch req: %u pdev: %u\n",
5641 __func__, pdev->layout_type, type);
5645 * Get the length of the opaque device_addr4. xdr_read_pages places
5646 * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages)
5647 * and places the remaining xdr data in xdr_buf->tail
5649 pdev->mincount = be32_to_cpup(p);
5650 if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount)
5653 /* Parse notification bitmap, verifying that it is zero. */
5654 p = xdr_inline_decode(xdr, 4);
5657 len = be32_to_cpup(p);
5661 p = xdr_inline_decode(xdr, 4 * len);
5664 for (i = 0; i < len; i++, p++) {
5665 if (be32_to_cpup(p)) {
5666 dprintk("%s: notifications not supported\n",
5674 print_overflow_msg(__func__, xdr);
5678 static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
5679 struct nfs4_layoutget_res *res)
5686 status = decode_op_hdr(xdr, OP_LAYOUTGET);
5689 p = xdr_inline_decode(xdr, 4);
5692 res->return_on_close = be32_to_cpup(p);
5693 decode_stateid(xdr, &res->stateid);
5694 p = xdr_inline_decode(xdr, 4);
5697 layout_count = be32_to_cpup(p);
5698 if (!layout_count) {
5699 dprintk("%s: server responded with empty layout array\n",
5704 p = xdr_inline_decode(xdr, 28);
5707 p = xdr_decode_hyper(p, &res->range.offset);
5708 p = xdr_decode_hyper(p, &res->range.length);
5709 res->range.iomode = be32_to_cpup(p++);
5710 res->type = be32_to_cpup(p++);
5711 res->layoutp->len = be32_to_cpup(p);
5713 dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n",
5715 (unsigned long)res->range.offset,
5716 (unsigned long)res->range.length,
5721 recvd = xdr_read_pages(xdr, res->layoutp->len);
5722 if (res->layoutp->len > recvd) {
5723 dprintk("NFS: server cheating in layoutget reply: "
5724 "layout len %u > recvd %u\n",
5725 res->layoutp->len, recvd);
5729 if (layout_count > 1) {
5730 /* We only handle a length one array at the moment. Any
5731 * further entries are just ignored. Note that this means
5732 * the client may see a response that is less than the
5733 * minimum it requested.
5735 dprintk("%s: server responded with %d layouts, dropping tail\n",
5736 __func__, layout_count);
5741 print_overflow_msg(__func__, xdr);
5745 static int decode_layoutreturn(struct xdr_stream *xdr,
5746 struct nfs4_layoutreturn_res *res)
5751 status = decode_op_hdr(xdr, OP_LAYOUTRETURN);
5754 p = xdr_inline_decode(xdr, 4);
5757 res->lrs_present = be32_to_cpup(p);
5758 if (res->lrs_present)
5759 status = decode_stateid(xdr, &res->stateid);
5762 print_overflow_msg(__func__, xdr);
5766 static int decode_layoutcommit(struct xdr_stream *xdr,
5767 struct rpc_rqst *req,
5768 struct nfs4_layoutcommit_res *res)
5774 status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT);
5775 res->status = status;
5779 p = xdr_inline_decode(xdr, 4);
5782 sizechanged = be32_to_cpup(p);
5785 /* throw away new size */
5786 p = xdr_inline_decode(xdr, 8);
5792 print_overflow_msg(__func__, xdr);
5796 static int decode_test_stateid(struct xdr_stream *xdr,
5797 struct nfs41_test_stateid_res *res)
5803 status = decode_op_hdr(xdr, OP_TEST_STATEID);
5807 p = xdr_inline_decode(xdr, 4);
5810 num_res = be32_to_cpup(p++);
5814 p = xdr_inline_decode(xdr, 4);
5817 res->status = be32_to_cpup(p++);
5821 print_overflow_msg(__func__, xdr);
5826 static int decode_free_stateid(struct xdr_stream *xdr,
5827 struct nfs41_free_stateid_res *res)
5832 status = decode_op_hdr(xdr, OP_FREE_STATEID);
5836 p = xdr_inline_decode(xdr, 4);
5839 res->status = be32_to_cpup(p++);
5842 print_overflow_msg(__func__, xdr);
5845 #endif /* CONFIG_NFS_V4_1 */
5848 * END OF "GENERIC" DECODE ROUTINES.
5852 * Decode OPEN_DOWNGRADE response
5854 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp,
5855 struct xdr_stream *xdr,
5856 struct nfs_closeres *res)
5858 struct compound_hdr hdr;
5861 status = decode_compound_hdr(xdr, &hdr);
5864 status = decode_sequence(xdr, &res->seq_res, rqstp);
5867 status = decode_putfh(xdr);
5870 status = decode_open_downgrade(xdr, res);
5873 decode_getfattr(xdr, res->fattr, res->server);
5879 * Decode ACCESS response
5881 static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5882 struct nfs4_accessres *res)
5884 struct compound_hdr hdr;
5887 status = decode_compound_hdr(xdr, &hdr);
5890 status = decode_sequence(xdr, &res->seq_res, rqstp);
5893 status = decode_putfh(xdr);
5896 status = decode_access(xdr, &res->supported, &res->access);
5899 decode_getfattr(xdr, res->fattr, res->server);
5905 * Decode LOOKUP response
5907 static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5908 struct nfs4_lookup_res *res)
5910 struct compound_hdr hdr;
5913 status = decode_compound_hdr(xdr, &hdr);
5916 status = decode_sequence(xdr, &res->seq_res, rqstp);
5919 status = decode_putfh(xdr);
5922 status = decode_lookup(xdr);
5925 status = decode_getfh(xdr, res->fh);
5928 status = decode_getfattr(xdr, res->fattr, res->server);
5934 * Decode LOOKUP_ROOT response
5936 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp,
5937 struct xdr_stream *xdr,
5938 struct nfs4_lookup_res *res)
5940 struct compound_hdr hdr;
5943 status = decode_compound_hdr(xdr, &hdr);
5946 status = decode_sequence(xdr, &res->seq_res, rqstp);
5949 status = decode_putrootfh(xdr);
5952 status = decode_getfh(xdr, res->fh);
5954 status = decode_getfattr(xdr, res->fattr, res->server);
5960 * Decode REMOVE response
5962 static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5963 struct nfs_removeres *res)
5965 struct compound_hdr hdr;
5968 status = decode_compound_hdr(xdr, &hdr);
5971 status = decode_sequence(xdr, &res->seq_res, rqstp);
5974 status = decode_putfh(xdr);
5977 status = decode_remove(xdr, &res->cinfo);
5983 * Decode RENAME response
5985 static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5986 struct nfs_renameres *res)
5988 struct compound_hdr hdr;
5991 status = decode_compound_hdr(xdr, &hdr);
5994 status = decode_sequence(xdr, &res->seq_res, rqstp);
5997 status = decode_putfh(xdr);
6000 status = decode_savefh(xdr);
6003 status = decode_putfh(xdr);
6006 status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo);
6012 * Decode LINK response
6014 static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6015 struct nfs4_link_res *res)
6017 struct compound_hdr hdr;
6020 status = decode_compound_hdr(xdr, &hdr);
6023 status = decode_sequence(xdr, &res->seq_res, rqstp);
6026 status = decode_putfh(xdr);
6029 status = decode_savefh(xdr);
6032 status = decode_putfh(xdr);
6035 status = decode_link(xdr, &res->cinfo);
6039 * Note order: OP_LINK leaves the directory as the current
6042 status = decode_restorefh(xdr);
6045 decode_getfattr(xdr, res->fattr, res->server);
6051 * Decode CREATE response
6053 static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6054 struct nfs4_create_res *res)
6056 struct compound_hdr hdr;
6059 status = decode_compound_hdr(xdr, &hdr);
6062 status = decode_sequence(xdr, &res->seq_res, rqstp);
6065 status = decode_putfh(xdr);
6068 status = decode_create(xdr, &res->dir_cinfo);
6071 status = decode_getfh(xdr, res->fh);
6074 decode_getfattr(xdr, res->fattr, res->server);
6080 * Decode SYMLINK response
6082 static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6083 struct nfs4_create_res *res)
6085 return nfs4_xdr_dec_create(rqstp, xdr, res);
6089 * Decode GETATTR response
6091 static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6092 struct nfs4_getattr_res *res)
6094 struct compound_hdr hdr;
6097 status = decode_compound_hdr(xdr, &hdr);
6100 status = decode_sequence(xdr, &res->seq_res, rqstp);
6103 status = decode_putfh(xdr);
6106 status = decode_getfattr(xdr, res->fattr, res->server);
6112 * Encode an SETACL request
6114 static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr,
6115 struct nfs_setaclargs *args)
6117 struct compound_hdr hdr = {
6118 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
6121 encode_compound_hdr(xdr, req, &hdr);
6122 encode_sequence(xdr, &args->seq_args, &hdr);
6123 encode_putfh(xdr, args->fh, &hdr);
6124 encode_setacl(xdr, args, &hdr);
6129 * Decode SETACL response
6132 nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6133 struct nfs_setaclres *res)
6135 struct compound_hdr hdr;
6138 status = decode_compound_hdr(xdr, &hdr);
6141 status = decode_sequence(xdr, &res->seq_res, rqstp);
6144 status = decode_putfh(xdr);
6147 status = decode_setattr(xdr);
6153 * Decode GETACL response
6156 nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6157 struct nfs_getaclres *res)
6159 struct compound_hdr hdr;
6162 if (res->acl_scratch != NULL) {
6163 void *p = page_address(res->acl_scratch);
6164 xdr_set_scratch_buffer(xdr, p, PAGE_SIZE);
6166 status = decode_compound_hdr(xdr, &hdr);
6169 status = decode_sequence(xdr, &res->seq_res, rqstp);
6172 status = decode_putfh(xdr);
6175 status = decode_getacl(xdr, rqstp, res);
6182 * Decode CLOSE response
6184 static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6185 struct nfs_closeres *res)
6187 struct compound_hdr hdr;
6190 status = decode_compound_hdr(xdr, &hdr);
6193 status = decode_sequence(xdr, &res->seq_res, rqstp);
6196 status = decode_putfh(xdr);
6199 status = decode_close(xdr, res);
6203 * Note: Server may do delete on close for this file
6204 * in which case the getattr call will fail with
6205 * an ESTALE error. Shouldn't be a problem,
6206 * though, since fattr->valid will remain unset.
6208 decode_getfattr(xdr, res->fattr, res->server);
6214 * Decode OPEN response
6216 static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6217 struct nfs_openres *res)
6219 struct compound_hdr hdr;
6222 status = decode_compound_hdr(xdr, &hdr);
6225 status = decode_sequence(xdr, &res->seq_res, rqstp);
6228 status = decode_putfh(xdr);
6231 status = decode_open(xdr, res);
6234 status = decode_getfh(xdr, &res->fh);
6237 if (res->access_request)
6238 decode_access(xdr, &res->access_supported, &res->access_result);
6239 decode_getfattr(xdr, res->f_attr, res->server);
6245 * Decode OPEN_CONFIRM response
6247 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp,
6248 struct xdr_stream *xdr,
6249 struct nfs_open_confirmres *res)
6251 struct compound_hdr hdr;
6254 status = decode_compound_hdr(xdr, &hdr);
6257 status = decode_putfh(xdr);
6260 status = decode_open_confirm(xdr, res);
6266 * Decode OPEN response
6268 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp,
6269 struct xdr_stream *xdr,
6270 struct nfs_openres *res)
6272 struct compound_hdr hdr;
6275 status = decode_compound_hdr(xdr, &hdr);
6278 status = decode_sequence(xdr, &res->seq_res, rqstp);
6281 status = decode_putfh(xdr);
6284 status = decode_open(xdr, res);
6287 if (res->access_request)
6288 decode_access(xdr, &res->access_supported, &res->access_result);
6289 decode_getfattr(xdr, res->f_attr, res->server);
6295 * Decode SETATTR response
6297 static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp,
6298 struct xdr_stream *xdr,
6299 struct nfs_setattrres *res)
6301 struct compound_hdr hdr;
6304 status = decode_compound_hdr(xdr, &hdr);
6307 status = decode_sequence(xdr, &res->seq_res, rqstp);
6310 status = decode_putfh(xdr);
6313 status = decode_setattr(xdr);
6316 decode_getfattr(xdr, res->fattr, res->server);
6322 * Decode LOCK response
6324 static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6325 struct nfs_lock_res *res)
6327 struct compound_hdr hdr;
6330 status = decode_compound_hdr(xdr, &hdr);
6333 status = decode_sequence(xdr, &res->seq_res, rqstp);
6336 status = decode_putfh(xdr);
6339 status = decode_lock(xdr, res);
6345 * Decode LOCKT response
6347 static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6348 struct nfs_lockt_res *res)
6350 struct compound_hdr hdr;
6353 status = decode_compound_hdr(xdr, &hdr);
6356 status = decode_sequence(xdr, &res->seq_res, rqstp);
6359 status = decode_putfh(xdr);
6362 status = decode_lockt(xdr, res);
6368 * Decode LOCKU response
6370 static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6371 struct nfs_locku_res *res)
6373 struct compound_hdr hdr;
6376 status = decode_compound_hdr(xdr, &hdr);
6379 status = decode_sequence(xdr, &res->seq_res, rqstp);
6382 status = decode_putfh(xdr);
6385 status = decode_locku(xdr, res);
6390 static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp,
6391 struct xdr_stream *xdr, void *dummy)
6393 struct compound_hdr hdr;
6396 status = decode_compound_hdr(xdr, &hdr);
6398 status = decode_release_lockowner(xdr);
6403 * Decode READLINK response
6405 static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp,
6406 struct xdr_stream *xdr,
6407 struct nfs4_readlink_res *res)
6409 struct compound_hdr hdr;
6412 status = decode_compound_hdr(xdr, &hdr);
6415 status = decode_sequence(xdr, &res->seq_res, rqstp);
6418 status = decode_putfh(xdr);
6421 status = decode_readlink(xdr, rqstp);
6427 * Decode READDIR response
6429 static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6430 struct nfs4_readdir_res *res)
6432 struct compound_hdr hdr;
6435 status = decode_compound_hdr(xdr, &hdr);
6438 status = decode_sequence(xdr, &res->seq_res, rqstp);
6441 status = decode_putfh(xdr);
6444 status = decode_readdir(xdr, rqstp, res);
6450 * Decode Read response
6452 static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6453 struct nfs_readres *res)
6455 struct compound_hdr hdr;
6458 status = decode_compound_hdr(xdr, &hdr);
6461 status = decode_sequence(xdr, &res->seq_res, rqstp);
6464 status = decode_putfh(xdr);
6467 status = decode_read(xdr, rqstp, res);
6469 status = res->count;
6475 * Decode WRITE response
6477 static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6478 struct nfs_writeres *res)
6480 struct compound_hdr hdr;
6483 status = decode_compound_hdr(xdr, &hdr);
6486 status = decode_sequence(xdr, &res->seq_res, rqstp);
6489 status = decode_putfh(xdr);
6492 status = decode_write(xdr, res);
6496 decode_getfattr(xdr, res->fattr, res->server);
6498 status = res->count;
6504 * Decode COMMIT response
6506 static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6507 struct nfs_commitres *res)
6509 struct compound_hdr hdr;
6512 status = decode_compound_hdr(xdr, &hdr);
6515 status = decode_sequence(xdr, &res->seq_res, rqstp);
6518 status = decode_putfh(xdr);
6521 status = decode_commit(xdr, res);
6527 * Decode FSINFO response
6529 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
6530 struct nfs4_fsinfo_res *res)
6532 struct compound_hdr hdr;
6535 status = decode_compound_hdr(xdr, &hdr);
6537 status = decode_sequence(xdr, &res->seq_res, req);
6539 status = decode_putfh(xdr);
6541 status = decode_fsinfo(xdr, res->fsinfo);
6546 * Decode PATHCONF response
6548 static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
6549 struct nfs4_pathconf_res *res)
6551 struct compound_hdr hdr;
6554 status = decode_compound_hdr(xdr, &hdr);
6556 status = decode_sequence(xdr, &res->seq_res, req);
6558 status = decode_putfh(xdr);
6560 status = decode_pathconf(xdr, res->pathconf);
6565 * Decode STATFS response
6567 static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
6568 struct nfs4_statfs_res *res)
6570 struct compound_hdr hdr;
6573 status = decode_compound_hdr(xdr, &hdr);
6575 status = decode_sequence(xdr, &res->seq_res, req);
6577 status = decode_putfh(xdr);
6579 status = decode_statfs(xdr, res->fsstat);
6584 * Decode GETATTR_BITMAP response
6586 static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req,
6587 struct xdr_stream *xdr,
6588 struct nfs4_server_caps_res *res)
6590 struct compound_hdr hdr;
6593 status = decode_compound_hdr(xdr, &hdr);
6596 status = decode_sequence(xdr, &res->seq_res, req);
6599 status = decode_putfh(xdr);
6602 status = decode_server_caps(xdr, res);
6608 * Decode RENEW response
6610 static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6613 struct compound_hdr hdr;
6616 status = decode_compound_hdr(xdr, &hdr);
6618 status = decode_renew(xdr);
6623 * Decode SETCLIENTID response
6625 static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req,
6626 struct xdr_stream *xdr,
6627 struct nfs4_setclientid_res *res)
6629 struct compound_hdr hdr;
6632 status = decode_compound_hdr(xdr, &hdr);
6634 status = decode_setclientid(xdr, res);
6639 * Decode SETCLIENTID_CONFIRM response
6641 static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req,
6642 struct xdr_stream *xdr,
6643 struct nfs_fsinfo *fsinfo)
6645 struct compound_hdr hdr;
6648 status = decode_compound_hdr(xdr, &hdr);
6650 status = decode_setclientid_confirm(xdr);
6652 status = decode_putrootfh(xdr);
6654 status = decode_fsinfo(xdr, fsinfo);
6659 * Decode DELEGRETURN response
6661 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp,
6662 struct xdr_stream *xdr,
6663 struct nfs4_delegreturnres *res)
6665 struct compound_hdr hdr;
6668 status = decode_compound_hdr(xdr, &hdr);
6671 status = decode_sequence(xdr, &res->seq_res, rqstp);
6674 status = decode_putfh(xdr);
6677 status = decode_getfattr(xdr, res->fattr, res->server);
6680 status = decode_delegreturn(xdr);
6686 * Decode FS_LOCATIONS response
6688 static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req,
6689 struct xdr_stream *xdr,
6690 struct nfs4_fs_locations_res *res)
6692 struct compound_hdr hdr;
6695 status = decode_compound_hdr(xdr, &hdr);
6698 status = decode_sequence(xdr, &res->seq_res, req);
6701 status = decode_putfh(xdr);
6704 status = decode_lookup(xdr);
6707 xdr_enter_page(xdr, PAGE_SIZE);
6708 status = decode_getfattr_generic(xdr, &res->fs_locations->fattr,
6709 NULL, res->fs_locations,
6710 res->fs_locations->server);
6716 * Decode SECINFO response
6718 static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp,
6719 struct xdr_stream *xdr,
6720 struct nfs4_secinfo_res *res)
6722 struct compound_hdr hdr;
6725 status = decode_compound_hdr(xdr, &hdr);
6728 status = decode_sequence(xdr, &res->seq_res, rqstp);
6731 status = decode_putfh(xdr);
6734 status = decode_secinfo(xdr, res);
6739 #if defined(CONFIG_NFS_V4_1)
6741 * Decode BIND_CONN_TO_SESSION response
6743 static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp,
6744 struct xdr_stream *xdr,
6747 struct compound_hdr hdr;
6750 status = decode_compound_hdr(xdr, &hdr);
6752 status = decode_bind_conn_to_session(xdr, res);
6757 * Decode EXCHANGE_ID response
6759 static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp,
6760 struct xdr_stream *xdr,
6763 struct compound_hdr hdr;
6766 status = decode_compound_hdr(xdr, &hdr);
6768 status = decode_exchange_id(xdr, res);
6773 * Decode CREATE_SESSION response
6775 static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp,
6776 struct xdr_stream *xdr,
6777 struct nfs41_create_session_res *res)
6779 struct compound_hdr hdr;
6782 status = decode_compound_hdr(xdr, &hdr);
6784 status = decode_create_session(xdr, res);
6789 * Decode DESTROY_SESSION response
6791 static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp,
6792 struct xdr_stream *xdr,
6795 struct compound_hdr hdr;
6798 status = decode_compound_hdr(xdr, &hdr);
6800 status = decode_destroy_session(xdr, res);
6805 * Decode DESTROY_CLIENTID response
6807 static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp,
6808 struct xdr_stream *xdr,
6811 struct compound_hdr hdr;
6814 status = decode_compound_hdr(xdr, &hdr);
6816 status = decode_destroy_clientid(xdr, res);
6821 * Decode SEQUENCE response
6823 static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp,
6824 struct xdr_stream *xdr,
6825 struct nfs4_sequence_res *res)
6827 struct compound_hdr hdr;
6830 status = decode_compound_hdr(xdr, &hdr);
6832 status = decode_sequence(xdr, res, rqstp);
6837 * Decode GET_LEASE_TIME response
6839 static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp,
6840 struct xdr_stream *xdr,
6841 struct nfs4_get_lease_time_res *res)
6843 struct compound_hdr hdr;
6846 status = decode_compound_hdr(xdr, &hdr);
6848 status = decode_sequence(xdr, &res->lr_seq_res, rqstp);
6850 status = decode_putrootfh(xdr);
6852 status = decode_fsinfo(xdr, res->lr_fsinfo);
6857 * Decode RECLAIM_COMPLETE response
6859 static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp,
6860 struct xdr_stream *xdr,
6861 struct nfs41_reclaim_complete_res *res)
6863 struct compound_hdr hdr;
6866 status = decode_compound_hdr(xdr, &hdr);
6868 status = decode_sequence(xdr, &res->seq_res, rqstp);
6870 status = decode_reclaim_complete(xdr, (void *)NULL);
6875 * Decode GETDEVICELIST response
6877 static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp,
6878 struct xdr_stream *xdr,
6879 struct nfs4_getdevicelist_res *res)
6881 struct compound_hdr hdr;
6884 dprintk("encoding getdevicelist!\n");
6886 status = decode_compound_hdr(xdr, &hdr);
6889 status = decode_sequence(xdr, &res->seq_res, rqstp);
6892 status = decode_putfh(xdr);
6895 status = decode_getdevicelist(xdr, res->devlist);
6901 * Decode GETDEVINFO response
6903 static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp,
6904 struct xdr_stream *xdr,
6905 struct nfs4_getdeviceinfo_res *res)
6907 struct compound_hdr hdr;
6910 status = decode_compound_hdr(xdr, &hdr);
6913 status = decode_sequence(xdr, &res->seq_res, rqstp);
6916 status = decode_getdeviceinfo(xdr, res->pdev);
6922 * Decode LAYOUTGET response
6924 static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp,
6925 struct xdr_stream *xdr,
6926 struct nfs4_layoutget_res *res)
6928 struct compound_hdr hdr;
6931 status = decode_compound_hdr(xdr, &hdr);
6934 status = decode_sequence(xdr, &res->seq_res, rqstp);
6937 status = decode_putfh(xdr);
6940 status = decode_layoutget(xdr, rqstp, res);
6946 * Decode LAYOUTRETURN response
6948 static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp,
6949 struct xdr_stream *xdr,
6950 struct nfs4_layoutreturn_res *res)
6952 struct compound_hdr hdr;
6955 status = decode_compound_hdr(xdr, &hdr);
6958 status = decode_sequence(xdr, &res->seq_res, rqstp);
6961 status = decode_putfh(xdr);
6964 status = decode_layoutreturn(xdr, res);
6970 * Decode LAYOUTCOMMIT response
6972 static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp,
6973 struct xdr_stream *xdr,
6974 struct nfs4_layoutcommit_res *res)
6976 struct compound_hdr hdr;
6979 status = decode_compound_hdr(xdr, &hdr);
6982 status = decode_sequence(xdr, &res->seq_res, rqstp);
6985 status = decode_putfh(xdr);
6988 status = decode_layoutcommit(xdr, rqstp, res);
6991 decode_getfattr(xdr, res->fattr, res->server);
6997 * Decode SECINFO_NO_NAME response
6999 static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp,
7000 struct xdr_stream *xdr,
7001 struct nfs4_secinfo_res *res)
7003 struct compound_hdr hdr;
7006 status = decode_compound_hdr(xdr, &hdr);
7009 status = decode_sequence(xdr, &res->seq_res, rqstp);
7012 status = decode_putrootfh(xdr);
7015 status = decode_secinfo_no_name(xdr, res);
7021 * Decode TEST_STATEID response
7023 static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp,
7024 struct xdr_stream *xdr,
7025 struct nfs41_test_stateid_res *res)
7027 struct compound_hdr hdr;
7030 status = decode_compound_hdr(xdr, &hdr);
7033 status = decode_sequence(xdr, &res->seq_res, rqstp);
7036 status = decode_test_stateid(xdr, res);
7042 * Decode FREE_STATEID response
7044 static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp,
7045 struct xdr_stream *xdr,
7046 struct nfs41_free_stateid_res *res)
7048 struct compound_hdr hdr;
7051 status = decode_compound_hdr(xdr, &hdr);
7054 status = decode_sequence(xdr, &res->seq_res, rqstp);
7057 status = decode_free_stateid(xdr, res);
7061 #endif /* CONFIG_NFS_V4_1 */
7064 * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in
7065 * the local page cache.
7066 * @xdr: XDR stream where entry resides
7067 * @entry: buffer to fill in with entry data
7068 * @plus: boolean indicating whether this should be a readdirplus entry
7070 * Returns zero if successful, otherwise a negative errno value is
7073 * This function is not invoked during READDIR reply decoding, but
7074 * rather whenever an application invokes the getdents(2) system call
7075 * on a directory already in our cache.
7077 int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
7081 uint32_t bitmap[3] = {0};
7083 __be32 *p = xdr_inline_decode(xdr, 4);
7086 if (*p == xdr_zero) {
7087 p = xdr_inline_decode(xdr, 4);
7096 p = xdr_inline_decode(xdr, 12);
7099 entry->prev_cookie = entry->cookie;
7100 p = xdr_decode_hyper(p, &entry->cookie);
7101 entry->len = be32_to_cpup(p);
7103 p = xdr_inline_decode(xdr, entry->len);
7106 entry->name = (const char *) p;
7109 * In case the server doesn't return an inode number,
7110 * we fake one here. (We don't use inode number 0,
7111 * since glibc seems to choke on it...)
7114 entry->fattr->valid = 0;
7116 if (decode_attr_bitmap(xdr, bitmap) < 0)
7119 if (decode_attr_length(xdr, &len, &savep) < 0)
7122 if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh,
7123 NULL, entry->server) < 0)
7125 if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID)
7126 entry->ino = entry->fattr->mounted_on_fileid;
7127 else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID)
7128 entry->ino = entry->fattr->fileid;
7130 entry->d_type = DT_UNKNOWN;
7131 if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE)
7132 entry->d_type = nfs_umode_to_dtype(entry->fattr->mode);
7137 print_overflow_msg(__func__, xdr);
7142 * We need to translate between nfs status return values and
7143 * the local errno values which may not be the same.
7150 { NFS4ERR_PERM, -EPERM },
7151 { NFS4ERR_NOENT, -ENOENT },
7152 { NFS4ERR_IO, -errno_NFSERR_IO},
7153 { NFS4ERR_NXIO, -ENXIO },
7154 { NFS4ERR_ACCESS, -EACCES },
7155 { NFS4ERR_EXIST, -EEXIST },
7156 { NFS4ERR_XDEV, -EXDEV },
7157 { NFS4ERR_NOTDIR, -ENOTDIR },
7158 { NFS4ERR_ISDIR, -EISDIR },
7159 { NFS4ERR_INVAL, -EINVAL },
7160 { NFS4ERR_FBIG, -EFBIG },
7161 { NFS4ERR_NOSPC, -ENOSPC },
7162 { NFS4ERR_ROFS, -EROFS },
7163 { NFS4ERR_MLINK, -EMLINK },
7164 { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG },
7165 { NFS4ERR_NOTEMPTY, -ENOTEMPTY },
7166 { NFS4ERR_DQUOT, -EDQUOT },
7167 { NFS4ERR_STALE, -ESTALE },
7168 { NFS4ERR_BADHANDLE, -EBADHANDLE },
7169 { NFS4ERR_BAD_COOKIE, -EBADCOOKIE },
7170 { NFS4ERR_NOTSUPP, -ENOTSUPP },
7171 { NFS4ERR_TOOSMALL, -ETOOSMALL },
7172 { NFS4ERR_SERVERFAULT, -EREMOTEIO },
7173 { NFS4ERR_BADTYPE, -EBADTYPE },
7174 { NFS4ERR_LOCKED, -EAGAIN },
7175 { NFS4ERR_SYMLINK, -ELOOP },
7176 { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP },
7177 { NFS4ERR_DEADLOCK, -EDEADLK },
7182 * Convert an NFS error code to a local one.
7183 * This one is used jointly by NFSv2 and NFSv3.
7186 nfs4_stat_to_errno(int stat)
7189 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
7190 if (nfs_errtbl[i].stat == stat)
7191 return nfs_errtbl[i].errno;
7193 if (stat <= 10000 || stat > 10100) {
7194 /* The server is looney tunes. */
7197 /* If we cannot translate the error, the recovery routines should
7199 * Note: remaining NFSv4 error codes have values > 10000, so should
7200 * not conflict with native Linux error codes.
7205 #define PROC(proc, argtype, restype) \
7206 [NFSPROC4_CLNT_##proc] = { \
7207 .p_proc = NFSPROC4_COMPOUND, \
7208 .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \
7209 .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \
7210 .p_arglen = NFS4_##argtype##_sz, \
7211 .p_replen = NFS4_##restype##_sz, \
7212 .p_statidx = NFSPROC4_CLNT_##proc, \
7216 struct rpc_procinfo nfs4_procedures[] = {
7217 PROC(READ, enc_read, dec_read),
7218 PROC(WRITE, enc_write, dec_write),
7219 PROC(COMMIT, enc_commit, dec_commit),
7220 PROC(OPEN, enc_open, dec_open),
7221 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
7222 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
7223 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
7224 PROC(CLOSE, enc_close, dec_close),
7225 PROC(SETATTR, enc_setattr, dec_setattr),
7226 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
7227 PROC(RENEW, enc_renew, dec_renew),
7228 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
7229 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
7230 PROC(LOCK, enc_lock, dec_lock),
7231 PROC(LOCKT, enc_lockt, dec_lockt),
7232 PROC(LOCKU, enc_locku, dec_locku),
7233 PROC(ACCESS, enc_access, dec_access),
7234 PROC(GETATTR, enc_getattr, dec_getattr),
7235 PROC(LOOKUP, enc_lookup, dec_lookup),
7236 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
7237 PROC(REMOVE, enc_remove, dec_remove),
7238 PROC(RENAME, enc_rename, dec_rename),
7239 PROC(LINK, enc_link, dec_link),
7240 PROC(SYMLINK, enc_symlink, dec_symlink),
7241 PROC(CREATE, enc_create, dec_create),
7242 PROC(PATHCONF, enc_pathconf, dec_pathconf),
7243 PROC(STATFS, enc_statfs, dec_statfs),
7244 PROC(READLINK, enc_readlink, dec_readlink),
7245 PROC(READDIR, enc_readdir, dec_readdir),
7246 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
7247 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
7248 PROC(GETACL, enc_getacl, dec_getacl),
7249 PROC(SETACL, enc_setacl, dec_setacl),
7250 PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
7251 PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner),
7252 PROC(SECINFO, enc_secinfo, dec_secinfo),
7253 #if defined(CONFIG_NFS_V4_1)
7254 PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
7255 PROC(CREATE_SESSION, enc_create_session, dec_create_session),
7256 PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session),
7257 PROC(SEQUENCE, enc_sequence, dec_sequence),
7258 PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time),
7259 PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete),
7260 PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo),
7261 PROC(LAYOUTGET, enc_layoutget, dec_layoutget),
7262 PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit),
7263 PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn),
7264 PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name),
7265 PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid),
7266 PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid),
7267 PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist),
7268 PROC(BIND_CONN_TO_SESSION,
7269 enc_bind_conn_to_session, dec_bind_conn_to_session),
7270 PROC(DESTROY_CLIENTID, enc_destroy_clientid, dec_destroy_clientid),
7271 #endif /* CONFIG_NFS_V4_1 */
7274 const struct rpc_version nfs_version4 = {
7276 .nrprocs = ARRAY_SIZE(nfs4_procedures),
7277 .procs = nfs4_procedures