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)
275 #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
276 encode_verifier_maxsz + \
277 1 /* co_ownerid.len */ + \
278 XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \
281 0 /* SP4_NONE (for now) */ + \
282 1 /* implementation id array of size 1 */ + \
283 1 /* nii_domain */ + \
284 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
286 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
288 #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
289 2 /* eir_clientid */ + \
290 1 /* eir_sequenceid */ + \
291 1 /* eir_flags */ + \
293 0 /* SP4_NONE (for now) */ + \
294 2 /* eir_server_owner.so_minor_id */ + \
295 /* eir_server_owner.so_major_id<> */ \
296 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
297 /* eir_server_scope<> */ \
298 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
299 1 /* eir_server_impl_id array length */ + \
300 1 /* nii_domain */ + \
301 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
303 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
305 #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
306 #define decode_channel_attrs_maxsz (6 + \
307 1 /* ca_rdma_ird.len */ + \
309 #define encode_create_session_maxsz (op_encode_hdr_maxsz + \
310 2 /* csa_clientid */ + \
311 1 /* csa_sequence */ + \
312 1 /* csa_flags */ + \
313 encode_channel_attrs_maxsz + \
314 encode_channel_attrs_maxsz + \
315 1 /* csa_cb_program */ + \
316 1 /* csa_sec_parms.len (1) */ + \
317 1 /* cb_secflavor (AUTH_SYS) */ + \
319 1 /* machinename.len */ + \
320 XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
323 1 /* gids.len (0) */)
324 #define decode_create_session_maxsz (op_decode_hdr_maxsz + \
325 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
326 1 /* csr_sequence */ + \
327 1 /* csr_flags */ + \
328 decode_channel_attrs_maxsz + \
329 decode_channel_attrs_maxsz)
330 #define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \
332 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
333 1 /* bctsa_dir */ + \
334 1 /* bctsa_use_conn_in_rdma_mode */)
335 #define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \
337 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
338 1 /* bctsr_dir */ + \
339 1 /* bctsr_use_conn_in_rdma_mode */)
340 #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
341 #define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
342 #define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2)
343 #define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz)
344 #define encode_sequence_maxsz (op_encode_hdr_maxsz + \
345 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
346 #define decode_sequence_maxsz (op_decode_hdr_maxsz + \
347 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
348 #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
349 #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
350 #define encode_getdevicelist_maxsz (op_encode_hdr_maxsz + 4 + \
351 encode_verifier_maxsz)
352 #define decode_getdevicelist_maxsz (op_decode_hdr_maxsz + \
353 2 /* nfs_cookie4 gdlr_cookie */ + \
354 decode_verifier_maxsz \
355 /* verifier4 gdlr_verifier */ + \
356 1 /* gdlr_deviceid_list count */ + \
357 XDR_QUADLEN(NFS4_PNFS_GETDEVLIST_MAXNUM * \
358 NFS4_DEVICEID4_SIZE) \
359 /* gdlr_deviceid_list */ + \
360 1 /* bool gdlr_eof */)
361 #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \
362 XDR_QUADLEN(NFS4_DEVICEID4_SIZE))
363 #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \
364 1 /* layout type */ + \
365 1 /* opaque devaddr4 length */ + \
366 /* devaddr4 payload is read into page */ \
367 1 /* notification bitmap length */ + \
368 1 /* notification bitmap */)
369 #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \
370 encode_stateid_maxsz)
371 #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \
372 decode_stateid_maxsz + \
373 XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE))
374 #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \
378 encode_stateid_maxsz + \
379 1 /* new offset (true) */ + \
380 2 /* last byte written */ + \
381 1 /* nt_timechanged (false) */ + \
382 1 /* layoutupdate4 layout type */ + \
383 1 /* NULL filelayout layoutupdate4 payload */)
384 #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3)
385 #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \
386 encode_stateid_maxsz + \
387 1 /* FIXME: opaque lrf_body always empty at the moment */)
388 #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \
389 1 + decode_stateid_maxsz)
390 #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1)
391 #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz
392 #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \
393 XDR_QUADLEN(NFS4_STATEID_SIZE))
394 #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1)
395 #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \
396 XDR_QUADLEN(NFS4_STATEID_SIZE))
397 #define decode_free_stateid_maxsz (op_decode_hdr_maxsz + 1)
398 #else /* CONFIG_NFS_V4_1 */
399 #define encode_sequence_maxsz 0
400 #define decode_sequence_maxsz 0
401 #endif /* CONFIG_NFS_V4_1 */
403 #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
404 #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
405 #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
406 encode_sequence_maxsz + \
407 encode_putfh_maxsz + \
409 #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
410 decode_sequence_maxsz + \
411 decode_putfh_maxsz + \
413 #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
414 encode_sequence_maxsz + \
415 encode_putfh_maxsz + \
416 encode_readlink_maxsz)
417 #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
418 decode_sequence_maxsz + \
419 decode_putfh_maxsz + \
420 decode_readlink_maxsz)
421 #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
422 encode_sequence_maxsz + \
423 encode_putfh_maxsz + \
424 encode_readdir_maxsz)
425 #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
426 decode_sequence_maxsz + \
427 decode_putfh_maxsz + \
428 decode_readdir_maxsz)
429 #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
430 encode_sequence_maxsz + \
431 encode_putfh_maxsz + \
432 encode_write_maxsz + \
433 encode_getattr_maxsz)
434 #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
435 decode_sequence_maxsz + \
436 decode_putfh_maxsz + \
437 decode_write_maxsz + \
438 decode_getattr_maxsz)
439 #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
440 encode_sequence_maxsz + \
441 encode_putfh_maxsz + \
443 #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
444 decode_sequence_maxsz + \
445 decode_putfh_maxsz + \
447 #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
448 encode_sequence_maxsz + \
449 encode_putfh_maxsz + \
450 encode_open_maxsz + \
451 encode_access_maxsz + \
452 encode_getfh_maxsz + \
453 encode_getattr_maxsz)
454 #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
455 decode_sequence_maxsz + \
456 decode_putfh_maxsz + \
457 decode_open_maxsz + \
458 decode_access_maxsz + \
459 decode_getfh_maxsz + \
460 decode_getattr_maxsz)
461 #define NFS4_enc_open_confirm_sz \
462 (compound_encode_hdr_maxsz + \
463 encode_putfh_maxsz + \
464 encode_open_confirm_maxsz)
465 #define NFS4_dec_open_confirm_sz \
466 (compound_decode_hdr_maxsz + \
467 decode_putfh_maxsz + \
468 decode_open_confirm_maxsz)
469 #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
470 encode_sequence_maxsz + \
471 encode_putfh_maxsz + \
472 encode_open_maxsz + \
473 encode_access_maxsz + \
474 encode_getattr_maxsz)
475 #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
476 decode_sequence_maxsz + \
477 decode_putfh_maxsz + \
478 decode_open_maxsz + \
479 decode_access_maxsz + \
480 decode_getattr_maxsz)
481 #define NFS4_enc_open_downgrade_sz \
482 (compound_encode_hdr_maxsz + \
483 encode_sequence_maxsz + \
484 encode_putfh_maxsz + \
485 encode_open_downgrade_maxsz + \
486 encode_getattr_maxsz)
487 #define NFS4_dec_open_downgrade_sz \
488 (compound_decode_hdr_maxsz + \
489 decode_sequence_maxsz + \
490 decode_putfh_maxsz + \
491 decode_open_downgrade_maxsz + \
492 decode_getattr_maxsz)
493 #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
494 encode_sequence_maxsz + \
495 encode_putfh_maxsz + \
496 encode_close_maxsz + \
497 encode_getattr_maxsz)
498 #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
499 decode_sequence_maxsz + \
500 decode_putfh_maxsz + \
501 decode_close_maxsz + \
502 decode_getattr_maxsz)
503 #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
504 encode_sequence_maxsz + \
505 encode_putfh_maxsz + \
506 encode_setattr_maxsz + \
507 encode_getattr_maxsz)
508 #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
509 decode_sequence_maxsz + \
510 decode_putfh_maxsz + \
511 decode_setattr_maxsz + \
512 decode_getattr_maxsz)
513 #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
514 encode_sequence_maxsz + \
515 encode_putfh_maxsz + \
517 #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
518 decode_sequence_maxsz + \
519 decode_putfh_maxsz + \
521 #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
523 #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
525 #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
526 encode_setclientid_maxsz)
527 #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
528 decode_setclientid_maxsz)
529 #define NFS4_enc_setclientid_confirm_sz \
530 (compound_encode_hdr_maxsz + \
531 encode_setclientid_confirm_maxsz + \
532 encode_putrootfh_maxsz + \
534 #define NFS4_dec_setclientid_confirm_sz \
535 (compound_decode_hdr_maxsz + \
536 decode_setclientid_confirm_maxsz + \
537 decode_putrootfh_maxsz + \
539 #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
540 encode_sequence_maxsz + \
541 encode_putfh_maxsz + \
543 #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
544 decode_sequence_maxsz + \
545 decode_putfh_maxsz + \
547 #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
548 encode_sequence_maxsz + \
549 encode_putfh_maxsz + \
551 #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
552 decode_sequence_maxsz + \
553 decode_putfh_maxsz + \
555 #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
556 encode_sequence_maxsz + \
557 encode_putfh_maxsz + \
559 #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
560 decode_sequence_maxsz + \
561 decode_putfh_maxsz + \
563 #define NFS4_enc_release_lockowner_sz \
564 (compound_encode_hdr_maxsz + \
565 encode_lockowner_maxsz)
566 #define NFS4_dec_release_lockowner_sz \
567 (compound_decode_hdr_maxsz + \
568 decode_lockowner_maxsz)
569 #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
570 encode_sequence_maxsz + \
571 encode_putfh_maxsz + \
572 encode_access_maxsz + \
573 encode_getattr_maxsz)
574 #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
575 decode_sequence_maxsz + \
576 decode_putfh_maxsz + \
577 decode_access_maxsz + \
578 decode_getattr_maxsz)
579 #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
580 encode_sequence_maxsz + \
581 encode_putfh_maxsz + \
582 encode_getattr_maxsz)
583 #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
584 decode_sequence_maxsz + \
585 decode_putfh_maxsz + \
586 decode_getattr_maxsz)
587 #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
588 encode_sequence_maxsz + \
589 encode_putfh_maxsz + \
590 encode_lookup_maxsz + \
591 encode_getattr_maxsz + \
593 #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
594 decode_sequence_maxsz + \
595 decode_putfh_maxsz + \
596 decode_lookup_maxsz + \
597 decode_getattr_maxsz + \
599 #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
600 encode_sequence_maxsz + \
601 encode_putrootfh_maxsz + \
602 encode_getattr_maxsz + \
604 #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
605 decode_sequence_maxsz + \
606 decode_putrootfh_maxsz + \
607 decode_getattr_maxsz + \
609 #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
610 encode_sequence_maxsz + \
611 encode_putfh_maxsz + \
613 #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
614 decode_sequence_maxsz + \
615 decode_putfh_maxsz + \
617 #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
618 encode_sequence_maxsz + \
619 encode_putfh_maxsz + \
620 encode_savefh_maxsz + \
621 encode_putfh_maxsz + \
623 #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
624 decode_sequence_maxsz + \
625 decode_putfh_maxsz + \
626 decode_savefh_maxsz + \
627 decode_putfh_maxsz + \
629 #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
630 encode_sequence_maxsz + \
631 encode_putfh_maxsz + \
632 encode_savefh_maxsz + \
633 encode_putfh_maxsz + \
634 encode_link_maxsz + \
635 encode_restorefh_maxsz + \
636 encode_getattr_maxsz)
637 #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
638 decode_sequence_maxsz + \
639 decode_putfh_maxsz + \
640 decode_savefh_maxsz + \
641 decode_putfh_maxsz + \
642 decode_link_maxsz + \
643 decode_restorefh_maxsz + \
644 decode_getattr_maxsz)
645 #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
646 encode_sequence_maxsz + \
647 encode_putfh_maxsz + \
648 encode_symlink_maxsz + \
649 encode_getattr_maxsz + \
651 #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
652 decode_sequence_maxsz + \
653 decode_putfh_maxsz + \
654 decode_symlink_maxsz + \
655 decode_getattr_maxsz + \
657 #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
658 encode_sequence_maxsz + \
659 encode_putfh_maxsz + \
660 encode_create_maxsz + \
661 encode_getfh_maxsz + \
662 encode_getattr_maxsz)
663 #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
664 decode_sequence_maxsz + \
665 decode_putfh_maxsz + \
666 decode_create_maxsz + \
667 decode_getfh_maxsz + \
668 decode_getattr_maxsz)
669 #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
670 encode_sequence_maxsz + \
671 encode_putfh_maxsz + \
672 encode_getattr_maxsz)
673 #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
674 decode_sequence_maxsz + \
675 decode_putfh_maxsz + \
676 decode_getattr_maxsz)
677 #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
678 encode_sequence_maxsz + \
679 encode_putfh_maxsz + \
681 #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
682 decode_sequence_maxsz + \
683 decode_putfh_maxsz + \
685 #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
686 encode_sequence_maxsz + \
687 encode_putfh_maxsz + \
688 encode_getattr_maxsz)
689 #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
690 decode_sequence_maxsz + \
691 decode_putfh_maxsz + \
692 decode_getattr_maxsz)
693 #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
694 encode_sequence_maxsz + \
695 encode_putfh_maxsz + \
696 encode_delegreturn_maxsz + \
697 encode_getattr_maxsz)
698 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
699 decode_sequence_maxsz + \
700 decode_delegreturn_maxsz + \
701 decode_getattr_maxsz)
702 #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
703 encode_sequence_maxsz + \
704 encode_putfh_maxsz + \
706 #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
707 decode_sequence_maxsz + \
708 decode_putfh_maxsz + \
710 #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
711 encode_sequence_maxsz + \
712 encode_putfh_maxsz + \
714 #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
715 decode_sequence_maxsz + \
716 decode_putfh_maxsz + \
718 #define NFS4_enc_fs_locations_sz \
719 (compound_encode_hdr_maxsz + \
720 encode_sequence_maxsz + \
721 encode_putfh_maxsz + \
722 encode_lookup_maxsz + \
723 encode_fs_locations_maxsz)
724 #define NFS4_dec_fs_locations_sz \
725 (compound_decode_hdr_maxsz + \
726 decode_sequence_maxsz + \
727 decode_putfh_maxsz + \
728 decode_lookup_maxsz + \
729 decode_fs_locations_maxsz)
730 #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \
731 encode_sequence_maxsz + \
732 encode_putfh_maxsz + \
733 encode_secinfo_maxsz)
734 #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \
735 decode_sequence_maxsz + \
736 decode_putfh_maxsz + \
737 decode_secinfo_maxsz)
738 #if defined(CONFIG_NFS_V4_1)
739 #define NFS4_enc_bind_conn_to_session_sz \
740 (compound_encode_hdr_maxsz + \
741 encode_bind_conn_to_session_maxsz)
742 #define NFS4_dec_bind_conn_to_session_sz \
743 (compound_decode_hdr_maxsz + \
744 decode_bind_conn_to_session_maxsz)
745 #define NFS4_enc_exchange_id_sz \
746 (compound_encode_hdr_maxsz + \
747 encode_exchange_id_maxsz)
748 #define NFS4_dec_exchange_id_sz \
749 (compound_decode_hdr_maxsz + \
750 decode_exchange_id_maxsz)
751 #define NFS4_enc_create_session_sz \
752 (compound_encode_hdr_maxsz + \
753 encode_create_session_maxsz)
754 #define NFS4_dec_create_session_sz \
755 (compound_decode_hdr_maxsz + \
756 decode_create_session_maxsz)
757 #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
758 encode_destroy_session_maxsz)
759 #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
760 decode_destroy_session_maxsz)
761 #define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \
762 encode_destroy_clientid_maxsz)
763 #define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \
764 decode_destroy_clientid_maxsz)
765 #define NFS4_enc_sequence_sz \
766 (compound_decode_hdr_maxsz + \
767 encode_sequence_maxsz)
768 #define NFS4_dec_sequence_sz \
769 (compound_decode_hdr_maxsz + \
770 decode_sequence_maxsz)
771 #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
772 encode_sequence_maxsz + \
773 encode_putrootfh_maxsz + \
775 #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
776 decode_sequence_maxsz + \
777 decode_putrootfh_maxsz + \
779 #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
780 encode_sequence_maxsz + \
781 encode_reclaim_complete_maxsz)
782 #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
783 decode_sequence_maxsz + \
784 decode_reclaim_complete_maxsz)
785 #define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \
786 encode_sequence_maxsz + \
787 encode_putfh_maxsz + \
788 encode_getdevicelist_maxsz)
789 #define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \
790 decode_sequence_maxsz + \
791 decode_putfh_maxsz + \
792 decode_getdevicelist_maxsz)
793 #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \
794 encode_sequence_maxsz +\
795 encode_getdeviceinfo_maxsz)
796 #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \
797 decode_sequence_maxsz + \
798 decode_getdeviceinfo_maxsz)
799 #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \
800 encode_sequence_maxsz + \
801 encode_putfh_maxsz + \
802 encode_layoutget_maxsz)
803 #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \
804 decode_sequence_maxsz + \
805 decode_putfh_maxsz + \
806 decode_layoutget_maxsz)
807 #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \
808 encode_sequence_maxsz +\
809 encode_putfh_maxsz + \
810 encode_layoutcommit_maxsz + \
811 encode_getattr_maxsz)
812 #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \
813 decode_sequence_maxsz + \
814 decode_putfh_maxsz + \
815 decode_layoutcommit_maxsz + \
816 decode_getattr_maxsz)
817 #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \
818 encode_sequence_maxsz + \
819 encode_putfh_maxsz + \
820 encode_layoutreturn_maxsz)
821 #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \
822 decode_sequence_maxsz + \
823 decode_putfh_maxsz + \
824 decode_layoutreturn_maxsz)
825 #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \
826 encode_sequence_maxsz + \
827 encode_putrootfh_maxsz +\
828 encode_secinfo_no_name_maxsz)
829 #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \
830 decode_sequence_maxsz + \
831 decode_putrootfh_maxsz + \
832 decode_secinfo_no_name_maxsz)
833 #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \
834 encode_sequence_maxsz + \
835 encode_test_stateid_maxsz)
836 #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \
837 decode_sequence_maxsz + \
838 decode_test_stateid_maxsz)
839 #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \
840 encode_sequence_maxsz + \
841 encode_free_stateid_maxsz)
842 #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \
843 decode_sequence_maxsz + \
844 decode_free_stateid_maxsz)
846 const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
847 compound_encode_hdr_maxsz +
848 encode_sequence_maxsz +
850 encode_getattr_maxsz) *
853 const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
854 compound_decode_hdr_maxsz +
855 decode_sequence_maxsz +
856 decode_putfh_maxsz) *
858 #endif /* CONFIG_NFS_V4_1 */
860 static const umode_t nfs_type2fmt[] = {
867 [NF4SOCK] = S_IFSOCK,
873 struct compound_hdr {
879 uint32_t replen; /* expected reply words */
883 static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes)
885 __be32 *p = xdr_reserve_space(xdr, nbytes);
890 static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len)
894 p = xdr_reserve_space(xdr, len);
895 xdr_encode_opaque_fixed(p, buf, len);
898 static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
902 p = reserve_space(xdr, 4 + len);
903 xdr_encode_opaque(p, str, len);
906 static void encode_uint32(struct xdr_stream *xdr, u32 n)
910 p = reserve_space(xdr, 4);
914 static void encode_uint64(struct xdr_stream *xdr, u64 n)
918 p = reserve_space(xdr, 8);
919 xdr_encode_hyper(p, n);
922 static void encode_nfs4_seqid(struct xdr_stream *xdr,
923 const struct nfs_seqid *seqid)
925 encode_uint32(xdr, seqid->sequence->counter);
928 static void encode_compound_hdr(struct xdr_stream *xdr,
929 struct rpc_rqst *req,
930 struct compound_hdr *hdr)
933 struct rpc_auth *auth = req->rq_cred->cr_auth;
935 /* initialize running count of expected bytes in reply.
936 * NOTE: the replied tag SHOULD be the same is the one sent,
937 * but this is not required as a MUST for the server to do so. */
938 hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen;
940 WARN_ON_ONCE(hdr->taglen > NFS4_MAXTAGLEN);
941 encode_string(xdr, hdr->taglen, hdr->tag);
942 p = reserve_space(xdr, 8);
943 *p++ = cpu_to_be32(hdr->minorversion);
945 *p = cpu_to_be32(hdr->nops);
948 static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op,
950 struct compound_hdr *hdr)
952 encode_uint32(xdr, op);
954 hdr->replen += replen;
957 static void encode_nops(struct compound_hdr *hdr)
959 WARN_ON_ONCE(hdr->nops > NFS4_MAX_OPS);
960 *hdr->nops_p = htonl(hdr->nops);
963 static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid)
965 encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE);
968 static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
970 encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE);
973 static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
975 char owner_name[IDMAP_NAMESZ];
976 char owner_group[IDMAP_NAMESZ];
977 int owner_namelen = 0;
978 int owner_grouplen = 0;
986 * We reserve enough space to write the entire attribute buffer at once.
987 * In the worst-case, this would be
988 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
989 * = 36 bytes, plus any contribution from variable-length fields
990 * such as owner/group.
995 if (iap->ia_valid & ATTR_SIZE)
997 if (iap->ia_valid & ATTR_MODE)
999 if (iap->ia_valid & ATTR_UID) {
1000 owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ);
1001 if (owner_namelen < 0) {
1002 dprintk("nfs: couldn't resolve uid %d to string\n",
1005 strcpy(owner_name, "nobody");
1006 owner_namelen = sizeof("nobody") - 1;
1009 len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
1011 if (iap->ia_valid & ATTR_GID) {
1012 owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ);
1013 if (owner_grouplen < 0) {
1014 dprintk("nfs: couldn't resolve gid %d to string\n",
1016 strcpy(owner_group, "nobody");
1017 owner_grouplen = sizeof("nobody") - 1;
1020 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
1022 if (iap->ia_valid & ATTR_ATIME_SET)
1024 else if (iap->ia_valid & ATTR_ATIME)
1026 if (iap->ia_valid & ATTR_MTIME_SET)
1028 else if (iap->ia_valid & ATTR_MTIME)
1030 p = reserve_space(xdr, len);
1033 * We write the bitmap length now, but leave the bitmap and the attribute
1034 * buffer length to be backfilled at the end of this routine.
1036 *p++ = cpu_to_be32(2);
1040 if (iap->ia_valid & ATTR_SIZE) {
1041 bmval0 |= FATTR4_WORD0_SIZE;
1042 p = xdr_encode_hyper(p, iap->ia_size);
1044 if (iap->ia_valid & ATTR_MODE) {
1045 bmval1 |= FATTR4_WORD1_MODE;
1046 *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
1048 if (iap->ia_valid & ATTR_UID) {
1049 bmval1 |= FATTR4_WORD1_OWNER;
1050 p = xdr_encode_opaque(p, owner_name, owner_namelen);
1052 if (iap->ia_valid & ATTR_GID) {
1053 bmval1 |= FATTR4_WORD1_OWNER_GROUP;
1054 p = xdr_encode_opaque(p, owner_group, owner_grouplen);
1056 if (iap->ia_valid & ATTR_ATIME_SET) {
1057 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
1058 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
1059 *p++ = cpu_to_be32(0);
1060 *p++ = cpu_to_be32(iap->ia_atime.tv_sec);
1061 *p++ = cpu_to_be32(iap->ia_atime.tv_nsec);
1063 else if (iap->ia_valid & ATTR_ATIME) {
1064 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
1065 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
1067 if (iap->ia_valid & ATTR_MTIME_SET) {
1068 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
1069 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
1070 *p++ = cpu_to_be32(0);
1071 *p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
1072 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
1074 else if (iap->ia_valid & ATTR_MTIME) {
1075 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
1076 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
1080 * Now we backfill the bitmap and the attribute buffer length.
1082 if (len != ((char *)p - (char *)q) + 4) {
1083 printk(KERN_ERR "NFS: Attr length error, %u != %Zu\n",
1084 len, ((char *)p - (char *)q) + 4);
1087 len = (char *)p - (char *)q - 12;
1088 *q++ = htonl(bmval0);
1089 *q++ = htonl(bmval1);
1095 static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr)
1097 encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr);
1098 encode_uint32(xdr, access);
1101 static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
1103 encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr);
1104 encode_nfs4_seqid(xdr, arg->seqid);
1105 encode_nfs4_stateid(xdr, arg->stateid);
1108 static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr)
1112 encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr);
1113 p = reserve_space(xdr, 12);
1114 p = xdr_encode_hyper(p, args->offset);
1115 *p = cpu_to_be32(args->count);
1118 static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr)
1122 encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr);
1123 encode_uint32(xdr, create->ftype);
1125 switch (create->ftype) {
1127 p = reserve_space(xdr, 4);
1128 *p = cpu_to_be32(create->u.symlink.len);
1129 xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len);
1132 case NF4BLK: case NF4CHR:
1133 p = reserve_space(xdr, 8);
1134 *p++ = cpu_to_be32(create->u.device.specdata1);
1135 *p = cpu_to_be32(create->u.device.specdata2);
1142 encode_string(xdr, create->name->len, create->name->name);
1143 encode_attrs(xdr, create->attrs, create->server);
1146 static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr)
1150 encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
1151 p = reserve_space(xdr, 8);
1152 *p++ = cpu_to_be32(1);
1153 *p = cpu_to_be32(bitmap);
1156 static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr)
1160 encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
1161 p = reserve_space(xdr, 12);
1162 *p++ = cpu_to_be32(2);
1163 *p++ = cpu_to_be32(bm0);
1164 *p = cpu_to_be32(bm1);
1168 encode_getattr_three(struct xdr_stream *xdr,
1169 uint32_t bm0, uint32_t bm1, uint32_t bm2,
1170 struct compound_hdr *hdr)
1174 encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
1176 p = reserve_space(xdr, 16);
1177 *p++ = cpu_to_be32(3);
1178 *p++ = cpu_to_be32(bm0);
1179 *p++ = cpu_to_be32(bm1);
1180 *p = cpu_to_be32(bm2);
1182 p = reserve_space(xdr, 12);
1183 *p++ = cpu_to_be32(2);
1184 *p++ = cpu_to_be32(bm0);
1185 *p = cpu_to_be32(bm1);
1187 p = reserve_space(xdr, 8);
1188 *p++ = cpu_to_be32(1);
1189 *p = cpu_to_be32(bm0);
1193 static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1195 encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0],
1196 bitmask[1] & nfs4_fattr_bitmap[1], hdr);
1199 static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask,
1200 const u32 *open_bitmap,
1201 struct compound_hdr *hdr)
1203 encode_getattr_three(xdr,
1204 bitmask[0] & open_bitmap[0],
1205 bitmask[1] & open_bitmap[1],
1206 bitmask[2] & open_bitmap[2],
1210 static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1212 encode_getattr_three(xdr,
1213 bitmask[0] & nfs4_fsinfo_bitmap[0],
1214 bitmask[1] & nfs4_fsinfo_bitmap[1],
1215 bitmask[2] & nfs4_fsinfo_bitmap[2],
1219 static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1221 encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0],
1222 bitmask[1] & nfs4_fs_locations_bitmap[1], hdr);
1225 static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1227 encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr);
1230 static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1232 encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr);
1233 encode_string(xdr, name->len, name->name);
1236 static inline int nfs4_lock_type(struct file_lock *fl, int block)
1238 if (fl->fl_type == F_RDLCK)
1239 return block ? NFS4_READW_LT : NFS4_READ_LT;
1240 return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT;
1243 static inline uint64_t nfs4_lock_length(struct file_lock *fl)
1245 if (fl->fl_end == OFFSET_MAX)
1246 return ~(uint64_t)0;
1247 return fl->fl_end - fl->fl_start + 1;
1250 static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner)
1254 p = reserve_space(xdr, 32);
1255 p = xdr_encode_hyper(p, lowner->clientid);
1256 *p++ = cpu_to_be32(20);
1257 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
1258 *p++ = cpu_to_be32(lowner->s_dev);
1259 xdr_encode_hyper(p, lowner->id);
1263 * opcode,type,reclaim,offset,length,new_lock_owner = 32
1264 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
1266 static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr)
1270 encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr);
1271 p = reserve_space(xdr, 28);
1272 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block));
1273 *p++ = cpu_to_be32(args->reclaim);
1274 p = xdr_encode_hyper(p, args->fl->fl_start);
1275 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1276 *p = cpu_to_be32(args->new_lock_owner);
1277 if (args->new_lock_owner){
1278 encode_nfs4_seqid(xdr, args->open_seqid);
1279 encode_nfs4_stateid(xdr, args->open_stateid);
1280 encode_nfs4_seqid(xdr, args->lock_seqid);
1281 encode_lockowner(xdr, &args->lock_owner);
1284 encode_nfs4_stateid(xdr, args->lock_stateid);
1285 encode_nfs4_seqid(xdr, args->lock_seqid);
1289 static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr)
1293 encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr);
1294 p = reserve_space(xdr, 20);
1295 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1296 p = xdr_encode_hyper(p, args->fl->fl_start);
1297 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1298 encode_lockowner(xdr, &args->lock_owner);
1301 static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr)
1305 encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr);
1306 encode_uint32(xdr, nfs4_lock_type(args->fl, 0));
1307 encode_nfs4_seqid(xdr, args->seqid);
1308 encode_nfs4_stateid(xdr, args->stateid);
1309 p = reserve_space(xdr, 16);
1310 p = xdr_encode_hyper(p, args->fl->fl_start);
1311 xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1314 static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr)
1316 encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr);
1317 encode_lockowner(xdr, lowner);
1320 static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1322 encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr);
1323 encode_string(xdr, name->len, name->name);
1326 static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode)
1330 p = reserve_space(xdr, 8);
1331 switch (fmode & (FMODE_READ|FMODE_WRITE)) {
1333 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ);
1336 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE);
1338 case FMODE_READ|FMODE_WRITE:
1339 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH);
1342 *p++ = cpu_to_be32(0);
1344 *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */
1347 static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1351 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1354 encode_nfs4_seqid(xdr, arg->seqid);
1355 encode_share_access(xdr, arg->fmode);
1356 p = reserve_space(xdr, 36);
1357 p = xdr_encode_hyper(p, arg->clientid);
1358 *p++ = cpu_to_be32(24);
1359 p = xdr_encode_opaque_fixed(p, "open id:", 8);
1360 *p++ = cpu_to_be32(arg->server->s_dev);
1361 *p++ = cpu_to_be32(arg->id.uniquifier);
1362 xdr_encode_hyper(p, arg->id.create_time);
1365 static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1368 struct nfs_client *clp;
1370 p = reserve_space(xdr, 4);
1371 switch(arg->open_flags & O_EXCL) {
1373 *p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
1374 encode_attrs(xdr, arg->u.attrs, arg->server);
1377 clp = arg->server->nfs_client;
1378 if (clp->cl_mvops->minor_version > 0) {
1379 if (nfs4_has_persistent_session(clp)) {
1380 *p = cpu_to_be32(NFS4_CREATE_GUARDED);
1381 encode_attrs(xdr, arg->u.attrs, arg->server);
1385 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1);
1386 encode_nfs4_verifier(xdr, &arg->u.verifier);
1388 encode_attrs(xdr, &dummy, arg->server);
1391 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
1392 encode_nfs4_verifier(xdr, &arg->u.verifier);
1397 static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1401 p = reserve_space(xdr, 4);
1402 switch (arg->open_flags & O_CREAT) {
1404 *p = cpu_to_be32(NFS4_OPEN_NOCREATE);
1407 *p = cpu_to_be32(NFS4_OPEN_CREATE);
1408 encode_createmode(xdr, arg);
1412 static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type)
1416 p = reserve_space(xdr, 4);
1417 switch (delegation_type) {
1419 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE);
1422 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ);
1424 case FMODE_WRITE|FMODE_READ:
1425 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE);
1432 static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
1436 p = reserve_space(xdr, 4);
1437 *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL);
1438 encode_string(xdr, name->len, name->name);
1441 static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type)
1445 p = reserve_space(xdr, 4);
1446 *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS);
1447 encode_delegation_type(xdr, type);
1450 static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
1454 p = reserve_space(xdr, 4);
1455 *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
1456 encode_nfs4_stateid(xdr, stateid);
1457 encode_string(xdr, name->len, name->name);
1460 static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr)
1462 encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr);
1463 encode_openhdr(xdr, arg);
1464 encode_opentype(xdr, arg);
1465 switch (arg->claim) {
1466 case NFS4_OPEN_CLAIM_NULL:
1467 encode_claim_null(xdr, arg->name);
1469 case NFS4_OPEN_CLAIM_PREVIOUS:
1470 encode_claim_previous(xdr, arg->u.delegation_type);
1472 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
1473 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
1480 static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr)
1482 encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr);
1483 encode_nfs4_stateid(xdr, arg->stateid);
1484 encode_nfs4_seqid(xdr, arg->seqid);
1487 static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
1489 encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr);
1490 encode_nfs4_stateid(xdr, arg->stateid);
1491 encode_nfs4_seqid(xdr, arg->seqid);
1492 encode_share_access(xdr, arg->fmode);
1496 encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr)
1498 encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr);
1499 encode_string(xdr, fh->size, fh->data);
1502 static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1504 encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr);
1507 static void encode_open_stateid(struct xdr_stream *xdr,
1508 const struct nfs_open_context *ctx,
1509 const struct nfs_lock_context *l_ctx,
1513 nfs4_stateid stateid;
1515 if (ctx->state != NULL) {
1516 const struct nfs_lockowner *lockowner = NULL;
1519 lockowner = &l_ctx->lockowner;
1520 nfs4_select_rw_stateid(&stateid, ctx->state,
1524 encode_nfs4_stateid(xdr, &stateid);
1526 encode_nfs4_stateid(xdr, &zero_stateid);
1529 static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr)
1533 encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr);
1534 encode_open_stateid(xdr, args->context, args->lock_context,
1535 FMODE_READ, hdr->minorversion);
1537 p = reserve_space(xdr, 12);
1538 p = xdr_encode_hyper(p, args->offset);
1539 *p = cpu_to_be32(args->count);
1542 static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr)
1544 uint32_t attrs[2] = {
1545 FATTR4_WORD0_RDATTR_ERROR,
1546 FATTR4_WORD1_MOUNTED_ON_FILEID,
1548 uint32_t dircount = readdir->count >> 1;
1551 if (readdir->plus) {
1552 attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE|
1553 FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID;
1554 attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER|
1555 FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV|
1556 FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS|
1557 FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
1560 /* Use mounted_on_fileid only if the server supports it */
1561 if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID))
1562 attrs[0] |= FATTR4_WORD0_FILEID;
1564 encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr);
1565 encode_uint64(xdr, readdir->cookie);
1566 encode_nfs4_verifier(xdr, &readdir->verifier);
1567 p = reserve_space(xdr, 20);
1568 *p++ = cpu_to_be32(dircount);
1569 *p++ = cpu_to_be32(readdir->count);
1570 *p++ = cpu_to_be32(2);
1572 *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]);
1573 *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]);
1574 memcpy(verf, readdir->verifier.data, sizeof(verf));
1575 dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n",
1577 (unsigned long long)readdir->cookie,
1579 attrs[0] & readdir->bitmask[0],
1580 attrs[1] & readdir->bitmask[1]);
1583 static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr)
1585 encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr);
1588 static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1590 encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr);
1591 encode_string(xdr, name->len, name->name);
1594 static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr)
1596 encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr);
1597 encode_string(xdr, oldname->len, oldname->name);
1598 encode_string(xdr, newname->len, newname->name);
1601 static void encode_renew(struct xdr_stream *xdr, clientid4 clid,
1602 struct compound_hdr *hdr)
1604 encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr);
1605 encode_uint64(xdr, clid);
1609 encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1611 encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr);
1615 encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr)
1619 encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr);
1620 encode_nfs4_stateid(xdr, &zero_stateid);
1621 p = reserve_space(xdr, 2*4);
1622 *p++ = cpu_to_be32(1);
1623 *p = cpu_to_be32(FATTR4_WORD0_ACL);
1624 p = reserve_space(xdr, 4);
1625 *p = cpu_to_be32(arg->acl_len);
1626 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
1630 encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1632 encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr);
1635 static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr)
1637 encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr);
1638 encode_nfs4_stateid(xdr, &arg->stateid);
1639 encode_attrs(xdr, arg->iap, server);
1642 static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr)
1646 encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr);
1647 encode_nfs4_verifier(xdr, setclientid->sc_verifier);
1649 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
1650 p = reserve_space(xdr, 4);
1651 *p = cpu_to_be32(setclientid->sc_prog);
1652 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1653 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
1654 p = reserve_space(xdr, 4);
1655 *p = cpu_to_be32(setclientid->sc_cb_ident);
1658 static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr)
1660 encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM,
1661 decode_setclientid_confirm_maxsz, hdr);
1662 encode_uint64(xdr, arg->clientid);
1663 encode_nfs4_verifier(xdr, &arg->confirm);
1666 static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
1670 encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr);
1671 encode_open_stateid(xdr, args->context, args->lock_context,
1672 FMODE_WRITE, hdr->minorversion);
1674 p = reserve_space(xdr, 16);
1675 p = xdr_encode_hyper(p, args->offset);
1676 *p++ = cpu_to_be32(args->stable);
1677 *p = cpu_to_be32(args->count);
1679 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
1682 static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr)
1684 encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr);
1685 encode_nfs4_stateid(xdr, stateid);
1688 static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1690 encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr);
1691 encode_string(xdr, name->len, name->name);
1694 #if defined(CONFIG_NFS_V4_1)
1695 /* NFSv4.1 operations */
1696 static void encode_bind_conn_to_session(struct xdr_stream *xdr,
1697 struct nfs4_session *session,
1698 struct compound_hdr *hdr)
1702 encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION,
1703 decode_bind_conn_to_session_maxsz, hdr);
1704 encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1705 p = xdr_reserve_space(xdr, 8);
1706 *p++ = cpu_to_be32(NFS4_CDFC4_BACK_OR_BOTH);
1707 *p = 0; /* use_conn_in_rdma_mode = False */
1710 static void encode_exchange_id(struct xdr_stream *xdr,
1711 struct nfs41_exchange_id_args *args,
1712 struct compound_hdr *hdr)
1715 char impl_name[NFS4_OPAQUE_LIMIT];
1718 encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr);
1719 encode_nfs4_verifier(xdr, args->verifier);
1721 encode_string(xdr, args->id_len, args->id);
1723 p = reserve_space(xdr, 12);
1724 *p++ = cpu_to_be32(args->flags);
1725 *p++ = cpu_to_be32(0); /* zero length state_protect4_a */
1727 if (send_implementation_id &&
1728 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 &&
1729 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN)
1730 <= NFS4_OPAQUE_LIMIT + 1)
1731 len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s",
1732 utsname()->sysname, utsname()->release,
1733 utsname()->version, utsname()->machine);
1736 *p = cpu_to_be32(1); /* implementation id array length=1 */
1739 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1,
1740 CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN);
1741 encode_string(xdr, len, impl_name);
1742 /* just send zeros for nii_date - the date is in nii_name */
1743 p = reserve_space(xdr, 12);
1744 p = xdr_encode_hyper(p, 0);
1745 *p = cpu_to_be32(0);
1747 *p = cpu_to_be32(0); /* implementation id array length=0 */
1750 static void encode_create_session(struct xdr_stream *xdr,
1751 struct nfs41_create_session_args *args,
1752 struct compound_hdr *hdr)
1755 char machine_name[NFS4_MAX_MACHINE_NAME_LEN];
1757 struct nfs_client *clp = args->client;
1758 struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);
1759 u32 max_resp_sz_cached;
1762 * Assumes OPEN is the biggest non-idempotent compound.
1763 * 2 is the verifier.
1765 max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE +
1766 RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT;
1768 len = scnprintf(machine_name, sizeof(machine_name), "%s",
1771 encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr);
1772 p = reserve_space(xdr, 16 + 2*28 + 20 + len + 12);
1773 p = xdr_encode_hyper(p, clp->cl_clientid);
1774 *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */
1775 *p++ = cpu_to_be32(args->flags); /*flags */
1778 *p++ = cpu_to_be32(0); /* header padding size */
1779 *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */
1780 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */
1781 *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */
1782 *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */
1783 *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */
1784 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1787 *p++ = cpu_to_be32(0); /* header padding size */
1788 *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */
1789 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */
1790 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1791 *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */
1792 *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */
1793 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1795 *p++ = cpu_to_be32(args->cb_program); /* cb_program */
1796 *p++ = cpu_to_be32(1);
1797 *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */
1799 /* authsys_parms rfc1831 */
1800 *p++ = (__be32)nn->boot_time.tv_nsec; /* stamp */
1801 p = xdr_encode_opaque(p, machine_name, len);
1802 *p++ = cpu_to_be32(0); /* UID */
1803 *p++ = cpu_to_be32(0); /* GID */
1804 *p = cpu_to_be32(0); /* No more gids */
1807 static void encode_destroy_session(struct xdr_stream *xdr,
1808 struct nfs4_session *session,
1809 struct compound_hdr *hdr)
1811 encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr);
1812 encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1815 static void encode_destroy_clientid(struct xdr_stream *xdr,
1817 struct compound_hdr *hdr)
1819 encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr);
1820 encode_uint64(xdr, clientid);
1823 static void encode_reclaim_complete(struct xdr_stream *xdr,
1824 struct nfs41_reclaim_complete_args *args,
1825 struct compound_hdr *hdr)
1827 encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr);
1828 encode_uint32(xdr, args->one_fs);
1830 #endif /* CONFIG_NFS_V4_1 */
1832 static void encode_sequence(struct xdr_stream *xdr,
1833 const struct nfs4_sequence_args *args,
1834 struct compound_hdr *hdr)
1836 #if defined(CONFIG_NFS_V4_1)
1837 struct nfs4_session *session;
1838 struct nfs4_slot_table *tp;
1839 struct nfs4_slot *slot = args->sa_slot;
1846 session = tp->session;
1848 encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr);
1851 * Sessionid + seqid + slotid + max slotid + cache_this
1853 dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
1854 "max_slotid=%d cache_this=%d\n",
1856 ((u32 *)session->sess_id.data)[0],
1857 ((u32 *)session->sess_id.data)[1],
1858 ((u32 *)session->sess_id.data)[2],
1859 ((u32 *)session->sess_id.data)[3],
1860 slot->seq_nr, slot->slot_nr,
1861 tp->highest_used_slotid, args->sa_cache_this);
1862 p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16);
1863 p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1864 *p++ = cpu_to_be32(slot->seq_nr);
1865 *p++ = cpu_to_be32(slot->slot_nr);
1866 *p++ = cpu_to_be32(tp->highest_used_slotid);
1867 *p = cpu_to_be32(args->sa_cache_this);
1868 #endif /* CONFIG_NFS_V4_1 */
1871 #ifdef CONFIG_NFS_V4_1
1873 encode_getdevicelist(struct xdr_stream *xdr,
1874 const struct nfs4_getdevicelist_args *args,
1875 struct compound_hdr *hdr)
1878 nfs4_verifier dummy = {
1882 encode_op_hdr(xdr, OP_GETDEVICELIST, decode_getdevicelist_maxsz, hdr);
1883 p = reserve_space(xdr, 16);
1884 *p++ = cpu_to_be32(args->layoutclass);
1885 *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM);
1886 xdr_encode_hyper(p, 0ULL); /* cookie */
1887 encode_nfs4_verifier(xdr, &dummy);
1891 encode_getdeviceinfo(struct xdr_stream *xdr,
1892 const struct nfs4_getdeviceinfo_args *args,
1893 struct compound_hdr *hdr)
1897 encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr);
1898 p = reserve_space(xdr, 12 + NFS4_DEVICEID4_SIZE);
1899 p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data,
1900 NFS4_DEVICEID4_SIZE);
1901 *p++ = cpu_to_be32(args->pdev->layout_type);
1902 *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */
1903 *p++ = cpu_to_be32(0); /* bitmap length 0 */
1907 encode_layoutget(struct xdr_stream *xdr,
1908 const struct nfs4_layoutget_args *args,
1909 struct compound_hdr *hdr)
1913 encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr);
1914 p = reserve_space(xdr, 36);
1915 *p++ = cpu_to_be32(0); /* Signal layout available */
1916 *p++ = cpu_to_be32(args->type);
1917 *p++ = cpu_to_be32(args->range.iomode);
1918 p = xdr_encode_hyper(p, args->range.offset);
1919 p = xdr_encode_hyper(p, args->range.length);
1920 p = xdr_encode_hyper(p, args->minlength);
1921 encode_nfs4_stateid(xdr, &args->stateid);
1922 encode_uint32(xdr, args->maxcount);
1924 dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n",
1928 (unsigned long)args->range.offset,
1929 (unsigned long)args->range.length,
1934 encode_layoutcommit(struct xdr_stream *xdr,
1935 struct inode *inode,
1936 const struct nfs4_layoutcommit_args *args,
1937 struct compound_hdr *hdr)
1941 dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten,
1942 NFS_SERVER(args->inode)->pnfs_curr_ld->id);
1944 encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr);
1945 p = reserve_space(xdr, 20);
1946 /* Only whole file layouts */
1947 p = xdr_encode_hyper(p, 0); /* offset */
1948 p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */
1949 *p = cpu_to_be32(0); /* reclaim */
1950 encode_nfs4_stateid(xdr, &args->stateid);
1951 p = reserve_space(xdr, 20);
1952 *p++ = cpu_to_be32(1); /* newoffset = TRUE */
1953 p = xdr_encode_hyper(p, args->lastbytewritten);
1954 *p++ = cpu_to_be32(0); /* Never send time_modify_changed */
1955 *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */
1957 if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit)
1958 NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit(
1959 NFS_I(inode)->layout, xdr, args);
1961 encode_uint32(xdr, 0); /* no layout-type payload */
1967 encode_layoutreturn(struct xdr_stream *xdr,
1968 const struct nfs4_layoutreturn_args *args,
1969 struct compound_hdr *hdr)
1973 encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr);
1974 p = reserve_space(xdr, 16);
1975 *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */
1976 *p++ = cpu_to_be32(args->layout_type);
1977 *p++ = cpu_to_be32(IOMODE_ANY);
1978 *p = cpu_to_be32(RETURN_FILE);
1979 p = reserve_space(xdr, 16);
1980 p = xdr_encode_hyper(p, 0);
1981 p = xdr_encode_hyper(p, NFS4_MAX_UINT64);
1982 spin_lock(&args->inode->i_lock);
1983 encode_nfs4_stateid(xdr, &args->stateid);
1984 spin_unlock(&args->inode->i_lock);
1985 if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) {
1986 NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn(
1987 NFS_I(args->inode)->layout, xdr, args);
1989 encode_uint32(xdr, 0);
1993 encode_secinfo_no_name(struct xdr_stream *xdr,
1994 const struct nfs41_secinfo_no_name_args *args,
1995 struct compound_hdr *hdr)
1997 encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr);
1998 encode_uint32(xdr, args->style);
2002 static void encode_test_stateid(struct xdr_stream *xdr,
2003 struct nfs41_test_stateid_args *args,
2004 struct compound_hdr *hdr)
2006 encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr);
2007 encode_uint32(xdr, 1);
2008 encode_nfs4_stateid(xdr, args->stateid);
2011 static void encode_free_stateid(struct xdr_stream *xdr,
2012 struct nfs41_free_stateid_args *args,
2013 struct compound_hdr *hdr)
2015 encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr);
2016 encode_nfs4_stateid(xdr, args->stateid);
2018 #endif /* CONFIG_NFS_V4_1 */
2021 * END OF "GENERIC" ENCODE ROUTINES.
2024 static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
2026 #if defined(CONFIG_NFS_V4_1)
2029 return args->sa_slot->table->session->clp->cl_mvops->minor_version;
2030 #endif /* CONFIG_NFS_V4_1 */
2035 * Encode an ACCESS request
2037 static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr,
2038 const struct nfs4_accessargs *args)
2040 struct compound_hdr hdr = {
2041 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2044 encode_compound_hdr(xdr, req, &hdr);
2045 encode_sequence(xdr, &args->seq_args, &hdr);
2046 encode_putfh(xdr, args->fh, &hdr);
2047 encode_access(xdr, args->access, &hdr);
2048 encode_getfattr(xdr, args->bitmask, &hdr);
2053 * Encode LOOKUP request
2055 static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr,
2056 const struct nfs4_lookup_arg *args)
2058 struct compound_hdr hdr = {
2059 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2062 encode_compound_hdr(xdr, req, &hdr);
2063 encode_sequence(xdr, &args->seq_args, &hdr);
2064 encode_putfh(xdr, args->dir_fh, &hdr);
2065 encode_lookup(xdr, args->name, &hdr);
2066 encode_getfh(xdr, &hdr);
2067 encode_getfattr(xdr, args->bitmask, &hdr);
2072 * Encode LOOKUP_ROOT request
2074 static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req,
2075 struct xdr_stream *xdr,
2076 const struct nfs4_lookup_root_arg *args)
2078 struct compound_hdr hdr = {
2079 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2082 encode_compound_hdr(xdr, req, &hdr);
2083 encode_sequence(xdr, &args->seq_args, &hdr);
2084 encode_putrootfh(xdr, &hdr);
2085 encode_getfh(xdr, &hdr);
2086 encode_getfattr(xdr, args->bitmask, &hdr);
2091 * Encode REMOVE request
2093 static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr,
2094 const struct nfs_removeargs *args)
2096 struct compound_hdr hdr = {
2097 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2100 encode_compound_hdr(xdr, req, &hdr);
2101 encode_sequence(xdr, &args->seq_args, &hdr);
2102 encode_putfh(xdr, args->fh, &hdr);
2103 encode_remove(xdr, &args->name, &hdr);
2108 * Encode RENAME request
2110 static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr,
2111 const struct nfs_renameargs *args)
2113 struct compound_hdr hdr = {
2114 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2117 encode_compound_hdr(xdr, req, &hdr);
2118 encode_sequence(xdr, &args->seq_args, &hdr);
2119 encode_putfh(xdr, args->old_dir, &hdr);
2120 encode_savefh(xdr, &hdr);
2121 encode_putfh(xdr, args->new_dir, &hdr);
2122 encode_rename(xdr, args->old_name, args->new_name, &hdr);
2127 * Encode LINK request
2129 static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr,
2130 const struct nfs4_link_arg *args)
2132 struct compound_hdr hdr = {
2133 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2136 encode_compound_hdr(xdr, req, &hdr);
2137 encode_sequence(xdr, &args->seq_args, &hdr);
2138 encode_putfh(xdr, args->fh, &hdr);
2139 encode_savefh(xdr, &hdr);
2140 encode_putfh(xdr, args->dir_fh, &hdr);
2141 encode_link(xdr, args->name, &hdr);
2142 encode_restorefh(xdr, &hdr);
2143 encode_getfattr(xdr, args->bitmask, &hdr);
2148 * Encode CREATE request
2150 static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr,
2151 const struct nfs4_create_arg *args)
2153 struct compound_hdr hdr = {
2154 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2157 encode_compound_hdr(xdr, req, &hdr);
2158 encode_sequence(xdr, &args->seq_args, &hdr);
2159 encode_putfh(xdr, args->dir_fh, &hdr);
2160 encode_create(xdr, args, &hdr);
2161 encode_getfh(xdr, &hdr);
2162 encode_getfattr(xdr, args->bitmask, &hdr);
2167 * Encode SYMLINK request
2169 static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr,
2170 const struct nfs4_create_arg *args)
2172 nfs4_xdr_enc_create(req, xdr, args);
2176 * Encode GETATTR request
2178 static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr,
2179 const struct nfs4_getattr_arg *args)
2181 struct compound_hdr hdr = {
2182 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2185 encode_compound_hdr(xdr, req, &hdr);
2186 encode_sequence(xdr, &args->seq_args, &hdr);
2187 encode_putfh(xdr, args->fh, &hdr);
2188 encode_getfattr(xdr, args->bitmask, &hdr);
2193 * Encode a CLOSE request
2195 static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
2196 struct nfs_closeargs *args)
2198 struct compound_hdr hdr = {
2199 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2202 encode_compound_hdr(xdr, req, &hdr);
2203 encode_sequence(xdr, &args->seq_args, &hdr);
2204 encode_putfh(xdr, args->fh, &hdr);
2205 encode_close(xdr, args, &hdr);
2206 encode_getfattr(xdr, args->bitmask, &hdr);
2211 * Encode an OPEN request
2213 static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
2214 struct nfs_openargs *args)
2216 struct compound_hdr hdr = {
2217 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2220 encode_compound_hdr(xdr, req, &hdr);
2221 encode_sequence(xdr, &args->seq_args, &hdr);
2222 encode_putfh(xdr, args->fh, &hdr);
2223 encode_open(xdr, args, &hdr);
2224 encode_getfh(xdr, &hdr);
2226 encode_access(xdr, args->access, &hdr);
2227 encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr);
2232 * Encode an OPEN_CONFIRM request
2234 static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req,
2235 struct xdr_stream *xdr,
2236 struct nfs_open_confirmargs *args)
2238 struct compound_hdr hdr = {
2242 encode_compound_hdr(xdr, req, &hdr);
2243 encode_putfh(xdr, args->fh, &hdr);
2244 encode_open_confirm(xdr, args, &hdr);
2249 * Encode an OPEN request with no attributes.
2251 static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req,
2252 struct xdr_stream *xdr,
2253 struct nfs_openargs *args)
2255 struct compound_hdr hdr = {
2256 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2259 encode_compound_hdr(xdr, req, &hdr);
2260 encode_sequence(xdr, &args->seq_args, &hdr);
2261 encode_putfh(xdr, args->fh, &hdr);
2262 encode_open(xdr, args, &hdr);
2264 encode_access(xdr, args->access, &hdr);
2265 encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr);
2270 * Encode an OPEN_DOWNGRADE request
2272 static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req,
2273 struct xdr_stream *xdr,
2274 struct nfs_closeargs *args)
2276 struct compound_hdr hdr = {
2277 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2280 encode_compound_hdr(xdr, req, &hdr);
2281 encode_sequence(xdr, &args->seq_args, &hdr);
2282 encode_putfh(xdr, args->fh, &hdr);
2283 encode_open_downgrade(xdr, args, &hdr);
2284 encode_getfattr(xdr, args->bitmask, &hdr);
2289 * Encode a LOCK request
2291 static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr,
2292 struct nfs_lock_args *args)
2294 struct compound_hdr hdr = {
2295 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2298 encode_compound_hdr(xdr, req, &hdr);
2299 encode_sequence(xdr, &args->seq_args, &hdr);
2300 encode_putfh(xdr, args->fh, &hdr);
2301 encode_lock(xdr, args, &hdr);
2306 * Encode a LOCKT request
2308 static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr,
2309 struct nfs_lockt_args *args)
2311 struct compound_hdr hdr = {
2312 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2315 encode_compound_hdr(xdr, req, &hdr);
2316 encode_sequence(xdr, &args->seq_args, &hdr);
2317 encode_putfh(xdr, args->fh, &hdr);
2318 encode_lockt(xdr, args, &hdr);
2323 * Encode a LOCKU request
2325 static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr,
2326 struct nfs_locku_args *args)
2328 struct compound_hdr hdr = {
2329 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2332 encode_compound_hdr(xdr, req, &hdr);
2333 encode_sequence(xdr, &args->seq_args, &hdr);
2334 encode_putfh(xdr, args->fh, &hdr);
2335 encode_locku(xdr, args, &hdr);
2339 static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req,
2340 struct xdr_stream *xdr,
2341 struct nfs_release_lockowner_args *args)
2343 struct compound_hdr hdr = {
2347 encode_compound_hdr(xdr, req, &hdr);
2348 encode_release_lockowner(xdr, &args->lock_owner, &hdr);
2353 * Encode a READLINK request
2355 static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr,
2356 const struct nfs4_readlink *args)
2358 struct compound_hdr hdr = {
2359 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2362 encode_compound_hdr(xdr, req, &hdr);
2363 encode_sequence(xdr, &args->seq_args, &hdr);
2364 encode_putfh(xdr, args->fh, &hdr);
2365 encode_readlink(xdr, args, req, &hdr);
2367 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
2368 args->pgbase, args->pglen);
2373 * Encode a READDIR request
2375 static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr,
2376 const struct nfs4_readdir_arg *args)
2378 struct compound_hdr hdr = {
2379 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2382 encode_compound_hdr(xdr, req, &hdr);
2383 encode_sequence(xdr, &args->seq_args, &hdr);
2384 encode_putfh(xdr, args->fh, &hdr);
2385 encode_readdir(xdr, args, req, &hdr);
2387 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
2388 args->pgbase, args->count);
2389 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
2390 __func__, hdr.replen << 2, args->pages,
2391 args->pgbase, args->count);
2396 * Encode a READ request
2398 static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr,
2399 struct nfs_readargs *args)
2401 struct compound_hdr hdr = {
2402 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2405 encode_compound_hdr(xdr, req, &hdr);
2406 encode_sequence(xdr, &args->seq_args, &hdr);
2407 encode_putfh(xdr, args->fh, &hdr);
2408 encode_read(xdr, args, &hdr);
2410 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
2411 args->pages, args->pgbase, args->count);
2412 req->rq_rcv_buf.flags |= XDRBUF_READ;
2417 * Encode an SETATTR request
2419 static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr,
2420 struct nfs_setattrargs *args)
2422 struct compound_hdr hdr = {
2423 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2426 encode_compound_hdr(xdr, req, &hdr);
2427 encode_sequence(xdr, &args->seq_args, &hdr);
2428 encode_putfh(xdr, args->fh, &hdr);
2429 encode_setattr(xdr, args, args->server, &hdr);
2430 encode_getfattr(xdr, args->bitmask, &hdr);
2435 * Encode a GETACL request
2437 static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
2438 struct nfs_getaclargs *args)
2440 struct compound_hdr hdr = {
2441 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2445 encode_compound_hdr(xdr, req, &hdr);
2446 encode_sequence(xdr, &args->seq_args, &hdr);
2447 encode_putfh(xdr, args->fh, &hdr);
2448 replen = hdr.replen + op_decode_hdr_maxsz + 1;
2449 encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr);
2451 xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
2452 args->acl_pages, args->acl_pgbase, args->acl_len);
2458 * Encode a WRITE request
2460 static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr,
2461 struct nfs_writeargs *args)
2463 struct compound_hdr hdr = {
2464 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2467 encode_compound_hdr(xdr, req, &hdr);
2468 encode_sequence(xdr, &args->seq_args, &hdr);
2469 encode_putfh(xdr, args->fh, &hdr);
2470 encode_write(xdr, args, &hdr);
2471 req->rq_snd_buf.flags |= XDRBUF_WRITE;
2473 encode_getfattr(xdr, args->bitmask, &hdr);
2480 static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
2481 struct nfs_commitargs *args)
2483 struct compound_hdr hdr = {
2484 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2487 encode_compound_hdr(xdr, req, &hdr);
2488 encode_sequence(xdr, &args->seq_args, &hdr);
2489 encode_putfh(xdr, args->fh, &hdr);
2490 encode_commit(xdr, args, &hdr);
2497 static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
2498 struct nfs4_fsinfo_arg *args)
2500 struct compound_hdr hdr = {
2501 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2504 encode_compound_hdr(xdr, req, &hdr);
2505 encode_sequence(xdr, &args->seq_args, &hdr);
2506 encode_putfh(xdr, args->fh, &hdr);
2507 encode_fsinfo(xdr, args->bitmask, &hdr);
2512 * a PATHCONF request
2514 static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
2515 const struct nfs4_pathconf_arg *args)
2517 struct compound_hdr hdr = {
2518 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2521 encode_compound_hdr(xdr, req, &hdr);
2522 encode_sequence(xdr, &args->seq_args, &hdr);
2523 encode_putfh(xdr, args->fh, &hdr);
2524 encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0],
2532 static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
2533 const struct nfs4_statfs_arg *args)
2535 struct compound_hdr hdr = {
2536 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2539 encode_compound_hdr(xdr, req, &hdr);
2540 encode_sequence(xdr, &args->seq_args, &hdr);
2541 encode_putfh(xdr, args->fh, &hdr);
2542 encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0],
2543 args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr);
2548 * GETATTR_BITMAP request
2550 static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
2551 struct xdr_stream *xdr,
2552 struct nfs4_server_caps_arg *args)
2554 struct compound_hdr hdr = {
2555 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2558 encode_compound_hdr(xdr, req, &hdr);
2559 encode_sequence(xdr, &args->seq_args, &hdr);
2560 encode_putfh(xdr, args->fhandle, &hdr);
2561 encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
2562 FATTR4_WORD0_FH_EXPIRE_TYPE|
2563 FATTR4_WORD0_LINK_SUPPORT|
2564 FATTR4_WORD0_SYMLINK_SUPPORT|
2565 FATTR4_WORD0_ACLSUPPORT, &hdr);
2572 static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
2573 struct nfs_client *clp)
2575 struct compound_hdr hdr = {
2579 encode_compound_hdr(xdr, req, &hdr);
2580 encode_renew(xdr, clp->cl_clientid, &hdr);
2585 * a SETCLIENTID request
2587 static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req,
2588 struct xdr_stream *xdr,
2589 struct nfs4_setclientid *sc)
2591 struct compound_hdr hdr = {
2595 encode_compound_hdr(xdr, req, &hdr);
2596 encode_setclientid(xdr, sc, &hdr);
2601 * a SETCLIENTID_CONFIRM request
2603 static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req,
2604 struct xdr_stream *xdr,
2605 struct nfs4_setclientid_res *arg)
2607 struct compound_hdr hdr = {
2610 const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME };
2612 encode_compound_hdr(xdr, req, &hdr);
2613 encode_setclientid_confirm(xdr, arg, &hdr);
2614 encode_putrootfh(xdr, &hdr);
2615 encode_fsinfo(xdr, lease_bitmap, &hdr);
2620 * DELEGRETURN request
2622 static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
2623 struct xdr_stream *xdr,
2624 const struct nfs4_delegreturnargs *args)
2626 struct compound_hdr hdr = {
2627 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2630 encode_compound_hdr(xdr, req, &hdr);
2631 encode_sequence(xdr, &args->seq_args, &hdr);
2632 encode_putfh(xdr, args->fhandle, &hdr);
2633 encode_getfattr(xdr, args->bitmask, &hdr);
2634 encode_delegreturn(xdr, args->stateid, &hdr);
2639 * Encode FS_LOCATIONS request
2641 static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
2642 struct xdr_stream *xdr,
2643 struct nfs4_fs_locations_arg *args)
2645 struct compound_hdr hdr = {
2646 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2650 encode_compound_hdr(xdr, req, &hdr);
2651 encode_sequence(xdr, &args->seq_args, &hdr);
2652 encode_putfh(xdr, args->dir_fh, &hdr);
2653 encode_lookup(xdr, args->name, &hdr);
2654 replen = hdr.replen; /* get the attribute into args->page */
2655 encode_fs_locations(xdr, args->bitmask, &hdr);
2657 xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
2663 * Encode SECINFO request
2665 static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
2666 struct xdr_stream *xdr,
2667 struct nfs4_secinfo_arg *args)
2669 struct compound_hdr hdr = {
2670 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2673 encode_compound_hdr(xdr, req, &hdr);
2674 encode_sequence(xdr, &args->seq_args, &hdr);
2675 encode_putfh(xdr, args->dir_fh, &hdr);
2676 encode_secinfo(xdr, args->name, &hdr);
2680 #if defined(CONFIG_NFS_V4_1)
2682 * BIND_CONN_TO_SESSION request
2684 static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req,
2685 struct xdr_stream *xdr,
2686 struct nfs_client *clp)
2688 struct compound_hdr hdr = {
2689 .minorversion = clp->cl_mvops->minor_version,
2692 encode_compound_hdr(xdr, req, &hdr);
2693 encode_bind_conn_to_session(xdr, clp->cl_session, &hdr);
2698 * EXCHANGE_ID request
2700 static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req,
2701 struct xdr_stream *xdr,
2702 struct nfs41_exchange_id_args *args)
2704 struct compound_hdr hdr = {
2705 .minorversion = args->client->cl_mvops->minor_version,
2708 encode_compound_hdr(xdr, req, &hdr);
2709 encode_exchange_id(xdr, args, &hdr);
2714 * a CREATE_SESSION request
2716 static void nfs4_xdr_enc_create_session(struct rpc_rqst *req,
2717 struct xdr_stream *xdr,
2718 struct nfs41_create_session_args *args)
2720 struct compound_hdr hdr = {
2721 .minorversion = args->client->cl_mvops->minor_version,
2724 encode_compound_hdr(xdr, req, &hdr);
2725 encode_create_session(xdr, args, &hdr);
2730 * a DESTROY_SESSION request
2732 static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req,
2733 struct xdr_stream *xdr,
2734 struct nfs4_session *session)
2736 struct compound_hdr hdr = {
2737 .minorversion = session->clp->cl_mvops->minor_version,
2740 encode_compound_hdr(xdr, req, &hdr);
2741 encode_destroy_session(xdr, session, &hdr);
2746 * a DESTROY_CLIENTID request
2748 static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req,
2749 struct xdr_stream *xdr,
2750 struct nfs_client *clp)
2752 struct compound_hdr hdr = {
2753 .minorversion = clp->cl_mvops->minor_version,
2756 encode_compound_hdr(xdr, req, &hdr);
2757 encode_destroy_clientid(xdr, clp->cl_clientid, &hdr);
2762 * a SEQUENCE request
2764 static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr,
2765 struct nfs4_sequence_args *args)
2767 struct compound_hdr hdr = {
2768 .minorversion = nfs4_xdr_minorversion(args),
2771 encode_compound_hdr(xdr, req, &hdr);
2772 encode_sequence(xdr, args, &hdr);
2777 * a GET_LEASE_TIME request
2779 static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req,
2780 struct xdr_stream *xdr,
2781 struct nfs4_get_lease_time_args *args)
2783 struct compound_hdr hdr = {
2784 .minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
2786 const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME };
2788 encode_compound_hdr(xdr, req, &hdr);
2789 encode_sequence(xdr, &args->la_seq_args, &hdr);
2790 encode_putrootfh(xdr, &hdr);
2791 encode_fsinfo(xdr, lease_bitmap, &hdr);
2796 * a RECLAIM_COMPLETE request
2798 static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req,
2799 struct xdr_stream *xdr,
2800 struct nfs41_reclaim_complete_args *args)
2802 struct compound_hdr hdr = {
2803 .minorversion = nfs4_xdr_minorversion(&args->seq_args)
2806 encode_compound_hdr(xdr, req, &hdr);
2807 encode_sequence(xdr, &args->seq_args, &hdr);
2808 encode_reclaim_complete(xdr, args, &hdr);
2813 * Encode GETDEVICELIST request
2815 static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req,
2816 struct xdr_stream *xdr,
2817 struct nfs4_getdevicelist_args *args)
2819 struct compound_hdr hdr = {
2820 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2823 encode_compound_hdr(xdr, req, &hdr);
2824 encode_sequence(xdr, &args->seq_args, &hdr);
2825 encode_putfh(xdr, args->fh, &hdr);
2826 encode_getdevicelist(xdr, args, &hdr);
2831 * Encode GETDEVICEINFO request
2833 static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req,
2834 struct xdr_stream *xdr,
2835 struct nfs4_getdeviceinfo_args *args)
2837 struct compound_hdr hdr = {
2838 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2841 encode_compound_hdr(xdr, req, &hdr);
2842 encode_sequence(xdr, &args->seq_args, &hdr);
2843 encode_getdeviceinfo(xdr, args, &hdr);
2845 /* set up reply kvec. Subtract notification bitmap max size (2)
2846 * so that notification bitmap is put in xdr_buf tail */
2847 xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2,
2848 args->pdev->pages, args->pdev->pgbase,
2855 * Encode LAYOUTGET request
2857 static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
2858 struct xdr_stream *xdr,
2859 struct nfs4_layoutget_args *args)
2861 struct compound_hdr hdr = {
2862 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2865 encode_compound_hdr(xdr, req, &hdr);
2866 encode_sequence(xdr, &args->seq_args, &hdr);
2867 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2868 encode_layoutget(xdr, args, &hdr);
2870 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
2871 args->layout.pages, 0, args->layout.pglen);
2877 * Encode LAYOUTCOMMIT request
2879 static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req,
2880 struct xdr_stream *xdr,
2881 struct nfs4_layoutcommit_args *args)
2883 struct nfs4_layoutcommit_data *data =
2884 container_of(args, struct nfs4_layoutcommit_data, args);
2885 struct compound_hdr hdr = {
2886 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2889 encode_compound_hdr(xdr, req, &hdr);
2890 encode_sequence(xdr, &args->seq_args, &hdr);
2891 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2892 encode_layoutcommit(xdr, data->args.inode, args, &hdr);
2893 encode_getfattr(xdr, args->bitmask, &hdr);
2898 * Encode LAYOUTRETURN request
2900 static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req,
2901 struct xdr_stream *xdr,
2902 struct nfs4_layoutreturn_args *args)
2904 struct compound_hdr hdr = {
2905 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2908 encode_compound_hdr(xdr, req, &hdr);
2909 encode_sequence(xdr, &args->seq_args, &hdr);
2910 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2911 encode_layoutreturn(xdr, args, &hdr);
2916 * Encode SECINFO_NO_NAME request
2918 static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
2919 struct xdr_stream *xdr,
2920 struct nfs41_secinfo_no_name_args *args)
2922 struct compound_hdr hdr = {
2923 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2926 encode_compound_hdr(xdr, req, &hdr);
2927 encode_sequence(xdr, &args->seq_args, &hdr);
2928 encode_putrootfh(xdr, &hdr);
2929 encode_secinfo_no_name(xdr, args, &hdr);
2935 * Encode TEST_STATEID request
2937 static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req,
2938 struct xdr_stream *xdr,
2939 struct nfs41_test_stateid_args *args)
2941 struct compound_hdr hdr = {
2942 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2945 encode_compound_hdr(xdr, req, &hdr);
2946 encode_sequence(xdr, &args->seq_args, &hdr);
2947 encode_test_stateid(xdr, args, &hdr);
2952 * Encode FREE_STATEID request
2954 static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req,
2955 struct xdr_stream *xdr,
2956 struct nfs41_free_stateid_args *args)
2958 struct compound_hdr hdr = {
2959 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2962 encode_compound_hdr(xdr, req, &hdr);
2963 encode_sequence(xdr, &args->seq_args, &hdr);
2964 encode_free_stateid(xdr, args, &hdr);
2967 #endif /* CONFIG_NFS_V4_1 */
2969 static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
2971 dprintk("nfs: %s: prematurely hit end of receive buffer. "
2972 "Remaining buffer length is %tu words.\n",
2973 func, xdr->end - xdr->p);
2976 static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
2980 p = xdr_inline_decode(xdr, 4);
2983 *len = be32_to_cpup(p);
2984 p = xdr_inline_decode(xdr, *len);
2987 *string = (char *)p;
2990 print_overflow_msg(__func__, xdr);
2994 static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
2998 p = xdr_inline_decode(xdr, 8);
3001 hdr->status = be32_to_cpup(p++);
3002 hdr->taglen = be32_to_cpup(p);
3004 p = xdr_inline_decode(xdr, hdr->taglen + 4);
3007 hdr->tag = (char *)p;
3008 p += XDR_QUADLEN(hdr->taglen);
3009 hdr->nops = be32_to_cpup(p);
3010 if (unlikely(hdr->nops < 1))
3011 return nfs4_stat_to_errno(hdr->status);
3014 print_overflow_msg(__func__, xdr);
3018 static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
3024 p = xdr_inline_decode(xdr, 8);
3027 opnum = be32_to_cpup(p++);
3028 if (opnum != expected) {
3029 dprintk("nfs: Server returned operation"
3030 " %d but we issued a request for %d\n",
3034 nfserr = be32_to_cpup(p);
3035 if (nfserr != NFS_OK)
3036 return nfs4_stat_to_errno(nfserr);
3039 print_overflow_msg(__func__, xdr);
3044 static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp)
3047 unsigned int strlen;
3050 p = xdr_inline_decode(xdr, 12);
3052 return decode_opaque_inline(xdr, &strlen, &str);
3053 print_overflow_msg(__func__, xdr);
3057 static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
3062 p = xdr_inline_decode(xdr, 4);
3065 bmlen = be32_to_cpup(p);
3067 bitmap[0] = bitmap[1] = bitmap[2] = 0;
3068 p = xdr_inline_decode(xdr, (bmlen << 2));
3072 bitmap[0] = be32_to_cpup(p++);
3074 bitmap[1] = be32_to_cpup(p++);
3076 bitmap[2] = be32_to_cpup(p);
3081 print_overflow_msg(__func__, xdr);
3085 static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep)
3089 p = xdr_inline_decode(xdr, 4);
3092 *attrlen = be32_to_cpup(p);
3093 *savep = xdr_stream_pos(xdr);
3096 print_overflow_msg(__func__, xdr);
3100 static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
3102 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
3104 ret = decode_attr_bitmap(xdr, bitmask);
3105 if (unlikely(ret < 0))
3107 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
3109 bitmask[0] = bitmask[1] = bitmask[2] = 0;
3110 dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__,
3111 bitmask[0], bitmask[1], bitmask[2]);
3115 static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
3121 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
3123 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
3124 p = xdr_inline_decode(xdr, 4);
3127 *type = be32_to_cpup(p);
3128 if (*type < NF4REG || *type > NF4NAMEDATTR) {
3129 dprintk("%s: bad type %d\n", __func__, *type);
3132 bitmap[0] &= ~FATTR4_WORD0_TYPE;
3133 ret = NFS_ATTR_FATTR_TYPE;
3135 dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]);
3138 print_overflow_msg(__func__, xdr);
3142 static int decode_attr_fh_expire_type(struct xdr_stream *xdr,
3143 uint32_t *bitmap, uint32_t *type)
3148 if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U)))
3150 if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) {
3151 p = xdr_inline_decode(xdr, 4);
3154 *type = be32_to_cpup(p);
3155 bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE;
3157 dprintk("%s: expire type=0x%x\n", __func__, *type);
3160 print_overflow_msg(__func__, xdr);
3164 static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
3170 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
3172 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
3173 p = xdr_inline_decode(xdr, 8);
3176 xdr_decode_hyper(p, change);
3177 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
3178 ret = NFS_ATTR_FATTR_CHANGE;
3180 dprintk("%s: change attribute=%Lu\n", __func__,
3181 (unsigned long long)*change);
3184 print_overflow_msg(__func__, xdr);
3188 static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
3194 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
3196 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
3197 p = xdr_inline_decode(xdr, 8);
3200 xdr_decode_hyper(p, size);
3201 bitmap[0] &= ~FATTR4_WORD0_SIZE;
3202 ret = NFS_ATTR_FATTR_SIZE;
3204 dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size);
3207 print_overflow_msg(__func__, xdr);
3211 static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3216 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
3218 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
3219 p = xdr_inline_decode(xdr, 4);
3222 *res = be32_to_cpup(p);
3223 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
3225 dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true");
3228 print_overflow_msg(__func__, xdr);
3232 static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3237 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
3239 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
3240 p = xdr_inline_decode(xdr, 4);
3243 *res = be32_to_cpup(p);
3244 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
3246 dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true");
3249 print_overflow_msg(__func__, xdr);
3253 static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid)
3260 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
3262 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
3263 p = xdr_inline_decode(xdr, 16);
3266 p = xdr_decode_hyper(p, &fsid->major);
3267 xdr_decode_hyper(p, &fsid->minor);
3268 bitmap[0] &= ~FATTR4_WORD0_FSID;
3269 ret = NFS_ATTR_FATTR_FSID;
3271 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__,
3272 (unsigned long long)fsid->major,
3273 (unsigned long long)fsid->minor);
3276 print_overflow_msg(__func__, xdr);
3280 static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3285 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
3287 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
3288 p = xdr_inline_decode(xdr, 4);
3291 *res = be32_to_cpup(p);
3292 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
3294 dprintk("%s: file size=%u\n", __func__, (unsigned int)*res);
3297 print_overflow_msg(__func__, xdr);
3301 static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res)
3305 if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U)))
3307 if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) {
3308 p = xdr_inline_decode(xdr, 4);
3311 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
3312 *res = -be32_to_cpup(p);
3316 print_overflow_msg(__func__, xdr);
3320 static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh)
3326 memset(fh, 0, sizeof(*fh));
3328 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U)))
3330 if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) {
3331 p = xdr_inline_decode(xdr, 4);
3334 len = be32_to_cpup(p);
3335 if (len > NFS4_FHSIZE)
3337 p = xdr_inline_decode(xdr, len);
3341 memcpy(fh->data, p, len);
3344 bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE;
3348 print_overflow_msg(__func__, xdr);
3352 static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3356 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
3357 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
3359 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
3360 p = xdr_inline_decode(xdr, 4);
3363 *res = be32_to_cpup(p);
3364 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
3366 dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res);
3369 print_overflow_msg(__func__, xdr);
3373 static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3379 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
3381 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
3382 p = xdr_inline_decode(xdr, 8);
3385 xdr_decode_hyper(p, fileid);
3386 bitmap[0] &= ~FATTR4_WORD0_FILEID;
3387 ret = NFS_ATTR_FATTR_FILEID;
3389 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
3392 print_overflow_msg(__func__, xdr);
3396 static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3402 if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U)))
3404 if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) {
3405 p = xdr_inline_decode(xdr, 8);
3408 xdr_decode_hyper(p, fileid);
3409 bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
3410 ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID;
3412 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
3415 print_overflow_msg(__func__, xdr);
3419 static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3425 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
3427 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
3428 p = xdr_inline_decode(xdr, 8);
3431 xdr_decode_hyper(p, res);
3432 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
3434 dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res);
3437 print_overflow_msg(__func__, xdr);
3441 static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3447 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
3449 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
3450 p = xdr_inline_decode(xdr, 8);
3453 xdr_decode_hyper(p, res);
3454 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
3456 dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res);
3459 print_overflow_msg(__func__, xdr);
3463 static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3469 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
3471 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
3472 p = xdr_inline_decode(xdr, 8);
3475 xdr_decode_hyper(p, res);
3476 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
3478 dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res);
3481 print_overflow_msg(__func__, xdr);
3485 static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
3491 p = xdr_inline_decode(xdr, 4);
3494 n = be32_to_cpup(p);
3497 dprintk("pathname4: ");
3498 path->ncomponents = 0;
3499 while (path->ncomponents < n) {
3500 struct nfs4_string *component = &path->components[path->ncomponents];
3501 status = decode_opaque_inline(xdr, &component->len, &component->data);
3502 if (unlikely(status != 0))
3506 (path->ncomponents != n ? "/ " : ""),
3507 component->len, component->data);
3508 if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS)
3509 path->ncomponents++;
3511 dprintk("cannot parse %d components in path\n", n);
3518 /* a root pathname is sent as a zero component4 */
3519 path->ncomponents = 1;
3520 path->components[0].len=0;
3521 path->components[0].data=NULL;
3522 dprintk("pathname4: /\n");
3525 dprintk(" status %d", status);
3529 print_overflow_msg(__func__, xdr);
3533 static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
3539 if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U)))
3542 if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS)))
3545 /* Ignore borken servers that return unrequested attrs */
3546 if (unlikely(res == NULL))
3548 dprintk("%s: fsroot:\n", __func__);
3549 status = decode_pathname(xdr, &res->fs_path);
3550 if (unlikely(status != 0))
3552 p = xdr_inline_decode(xdr, 4);
3555 n = be32_to_cpup(p);
3558 res->nlocations = 0;
3559 while (res->nlocations < n) {
3561 struct nfs4_fs_location *loc = &res->locations[res->nlocations];
3563 p = xdr_inline_decode(xdr, 4);
3566 m = be32_to_cpup(p);
3569 dprintk("%s: servers:\n", __func__);
3570 while (loc->nservers < m) {
3571 struct nfs4_string *server = &loc->servers[loc->nservers];
3572 status = decode_opaque_inline(xdr, &server->len, &server->data);
3573 if (unlikely(status != 0))
3575 dprintk("%s ", server->data);
3576 if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS)
3580 dprintk("%s: using first %u of %u servers "
3581 "returned for location %u\n",
3583 NFS4_FS_LOCATION_MAXSERVERS,
3584 m, res->nlocations);
3585 for (i = loc->nservers; i < m; i++) {
3588 status = decode_opaque_inline(xdr, &len, &data);
3589 if (unlikely(status != 0))
3594 status = decode_pathname(xdr, &loc->rootpath);
3595 if (unlikely(status != 0))
3597 if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES)
3600 if (res->nlocations != 0)
3601 status = NFS_ATTR_FATTR_V4_LOCATIONS;
3603 dprintk("%s: fs_locations done, error = %d\n", __func__, status);
3606 print_overflow_msg(__func__, xdr);
3612 static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3618 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
3620 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
3621 p = xdr_inline_decode(xdr, 8);
3624 xdr_decode_hyper(p, res);
3625 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
3627 dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res);
3630 print_overflow_msg(__func__, xdr);
3634 static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
3640 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
3642 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
3643 p = xdr_inline_decode(xdr, 4);
3646 *maxlink = be32_to_cpup(p);
3647 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
3649 dprintk("%s: maxlink=%u\n", __func__, *maxlink);
3652 print_overflow_msg(__func__, xdr);
3656 static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
3662 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
3664 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
3665 p = xdr_inline_decode(xdr, 4);
3668 *maxname = be32_to_cpup(p);
3669 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
3671 dprintk("%s: maxname=%u\n", __func__, *maxname);
3674 print_overflow_msg(__func__, xdr);
3678 static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3684 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
3686 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
3688 p = xdr_inline_decode(xdr, 8);
3691 xdr_decode_hyper(p, &maxread);
3692 if (maxread > 0x7FFFFFFF)
3693 maxread = 0x7FFFFFFF;
3694 *res = (uint32_t)maxread;
3695 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
3697 dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res);
3700 print_overflow_msg(__func__, xdr);
3704 static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3710 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
3712 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
3714 p = xdr_inline_decode(xdr, 8);
3717 xdr_decode_hyper(p, &maxwrite);
3718 if (maxwrite > 0x7FFFFFFF)
3719 maxwrite = 0x7FFFFFFF;
3720 *res = (uint32_t)maxwrite;
3721 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
3723 dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res);
3726 print_overflow_msg(__func__, xdr);
3730 static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode)
3737 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
3739 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
3740 p = xdr_inline_decode(xdr, 4);
3743 tmp = be32_to_cpup(p);
3744 *mode = tmp & ~S_IFMT;
3745 bitmap[1] &= ~FATTR4_WORD1_MODE;
3746 ret = NFS_ATTR_FATTR_MODE;
3748 dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode);
3751 print_overflow_msg(__func__, xdr);
3755 static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
3761 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
3763 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
3764 p = xdr_inline_decode(xdr, 4);
3767 *nlink = be32_to_cpup(p);
3768 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
3769 ret = NFS_ATTR_FATTR_NLINK;
3771 dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink);
3774 print_overflow_msg(__func__, xdr);
3778 static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
3779 const struct nfs_server *server, uint32_t *uid,
3780 struct nfs4_string *owner_name)
3787 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
3789 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
3790 p = xdr_inline_decode(xdr, 4);
3793 len = be32_to_cpup(p);
3794 p = xdr_inline_decode(xdr, len);
3797 if (owner_name != NULL) {
3798 owner_name->data = kmemdup(p, len, GFP_NOWAIT);
3799 if (owner_name->data != NULL) {
3800 owner_name->len = len;
3801 ret = NFS_ATTR_FATTR_OWNER_NAME;
3803 } else if (len < XDR_MAX_NETOBJ) {
3804 if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0)
3805 ret = NFS_ATTR_FATTR_OWNER;
3807 dprintk("%s: nfs_map_name_to_uid failed!\n",
3810 dprintk("%s: name too long (%u)!\n",
3812 bitmap[1] &= ~FATTR4_WORD1_OWNER;
3814 dprintk("%s: uid=%d\n", __func__, (int)*uid);
3817 print_overflow_msg(__func__, xdr);
3821 static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
3822 const struct nfs_server *server, uint32_t *gid,
3823 struct nfs4_string *group_name)
3830 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
3832 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
3833 p = xdr_inline_decode(xdr, 4);
3836 len = be32_to_cpup(p);
3837 p = xdr_inline_decode(xdr, len);
3840 if (group_name != NULL) {
3841 group_name->data = kmemdup(p, len, GFP_NOWAIT);
3842 if (group_name->data != NULL) {
3843 group_name->len = len;
3844 ret = NFS_ATTR_FATTR_GROUP_NAME;
3846 } else if (len < XDR_MAX_NETOBJ) {
3847 if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0)
3848 ret = NFS_ATTR_FATTR_GROUP;
3850 dprintk("%s: nfs_map_group_to_gid failed!\n",
3853 dprintk("%s: name too long (%u)!\n",
3855 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
3857 dprintk("%s: gid=%d\n", __func__, (int)*gid);
3860 print_overflow_msg(__func__, xdr);
3864 static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
3866 uint32_t major = 0, minor = 0;
3871 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
3873 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
3876 p = xdr_inline_decode(xdr, 8);
3879 major = be32_to_cpup(p++);
3880 minor = be32_to_cpup(p);
3881 tmp = MKDEV(major, minor);
3882 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
3884 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
3885 ret = NFS_ATTR_FATTR_RDEV;
3887 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor);
3890 print_overflow_msg(__func__, xdr);
3894 static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3900 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
3902 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
3903 p = xdr_inline_decode(xdr, 8);
3906 xdr_decode_hyper(p, res);
3907 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
3909 dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res);
3912 print_overflow_msg(__func__, xdr);
3916 static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3922 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
3924 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
3925 p = xdr_inline_decode(xdr, 8);
3928 xdr_decode_hyper(p, res);
3929 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
3931 dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res);
3934 print_overflow_msg(__func__, xdr);
3938 static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3944 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
3946 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
3947 p = xdr_inline_decode(xdr, 8);
3950 xdr_decode_hyper(p, res);
3951 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
3953 dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res);
3956 print_overflow_msg(__func__, xdr);
3960 static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
3966 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
3968 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
3969 p = xdr_inline_decode(xdr, 8);
3972 xdr_decode_hyper(p, used);
3973 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
3974 ret = NFS_ATTR_FATTR_SPACE_USED;
3976 dprintk("%s: space used=%Lu\n", __func__,
3977 (unsigned long long)*used);
3980 print_overflow_msg(__func__, xdr);
3984 static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
3990 p = xdr_inline_decode(xdr, 12);
3993 p = xdr_decode_hyper(p, &sec);
3994 nsec = be32_to_cpup(p);
3995 time->tv_sec = (time_t)sec;
3996 time->tv_nsec = (long)nsec;
3999 print_overflow_msg(__func__, xdr);
4003 static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4009 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
4011 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
4012 status = decode_attr_time(xdr, time);
4014 status = NFS_ATTR_FATTR_ATIME;
4015 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
4017 dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec);
4021 static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4027 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
4029 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
4030 status = decode_attr_time(xdr, time);
4032 status = NFS_ATTR_FATTR_CTIME;
4033 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
4035 dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec);
4039 static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap,
4040 struct timespec *time)
4046 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U)))
4048 if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) {
4049 status = decode_attr_time(xdr, time);
4050 bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA;
4052 dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec,
4053 (long)time->tv_nsec);
4057 static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4063 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
4065 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
4066 status = decode_attr_time(xdr, time);
4068 status = NFS_ATTR_FATTR_MTIME;
4069 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
4071 dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec);
4075 static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen)
4077 unsigned int attrwords = XDR_QUADLEN(attrlen);
4078 unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2;
4080 if (unlikely(attrwords != nwords)) {
4081 dprintk("%s: server returned incorrect attribute length: "
4085 (attrwords < nwords) ? '<' : '>',
4092 static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4096 p = xdr_inline_decode(xdr, 20);
4099 cinfo->atomic = be32_to_cpup(p++);
4100 p = xdr_decode_hyper(p, &cinfo->before);
4101 xdr_decode_hyper(p, &cinfo->after);
4104 print_overflow_msg(__func__, xdr);
4108 static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access)
4114 status = decode_op_hdr(xdr, OP_ACCESS);
4117 p = xdr_inline_decode(xdr, 8);
4120 supp = be32_to_cpup(p++);
4121 acc = be32_to_cpup(p);
4126 print_overflow_msg(__func__, xdr);
4130 static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len)
4134 p = xdr_inline_decode(xdr, len);
4136 memcpy(buf, p, len);
4139 print_overflow_msg(__func__, xdr);
4143 static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
4145 return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE);
4148 static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
4152 status = decode_op_hdr(xdr, OP_CLOSE);
4154 nfs_increment_open_seqid(status, res->seqid);
4156 status = decode_stateid(xdr, &res->stateid);
4160 static int decode_verifier(struct xdr_stream *xdr, void *verifier)
4162 return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE);
4165 static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier)
4167 return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE);
4170 static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res)
4174 status = decode_op_hdr(xdr, OP_COMMIT);
4176 status = decode_write_verifier(xdr, &res->verf->verifier);
4180 static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4186 status = decode_op_hdr(xdr, OP_CREATE);
4189 if ((status = decode_change_info(xdr, cinfo)))
4191 p = xdr_inline_decode(xdr, 4);
4194 bmlen = be32_to_cpup(p);
4195 p = xdr_inline_decode(xdr, bmlen << 2);
4199 print_overflow_msg(__func__, xdr);
4203 static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
4206 uint32_t attrlen, bitmap[3] = {0};
4209 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4211 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4213 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4215 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
4217 if ((status = decode_attr_fh_expire_type(xdr, bitmap,
4218 &res->fh_expire_type)) != 0)
4220 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
4222 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
4224 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
4226 status = verify_attr_len(xdr, savep, attrlen);
4228 dprintk("%s: xdr returned %d!\n", __func__, -status);
4232 static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
4235 uint32_t attrlen, bitmap[3] = {0};
4238 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4240 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4242 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4245 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
4247 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
4249 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
4251 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
4253 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
4255 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
4258 status = verify_attr_len(xdr, savep, attrlen);
4260 dprintk("%s: xdr returned %d!\n", __func__, -status);
4264 static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
4267 uint32_t attrlen, bitmap[3] = {0};
4270 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4272 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4274 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4277 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
4279 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
4282 status = verify_attr_len(xdr, savep, attrlen);
4284 dprintk("%s: xdr returned %d!\n", __func__, -status);
4288 static int decode_threshold_hint(struct xdr_stream *xdr,
4296 if (likely(bitmap[0] & hint_bit)) {
4297 p = xdr_inline_decode(xdr, 8);
4300 xdr_decode_hyper(p, res);
4304 print_overflow_msg(__func__, xdr);
4308 static int decode_first_threshold_item4(struct xdr_stream *xdr,
4309 struct nfs4_threshold *res)
4313 uint32_t bitmap[3] = {0,}, attrlen;
4317 p = xdr_inline_decode(xdr, 4);
4319 print_overflow_msg(__func__, xdr);
4322 res->l_type = be32_to_cpup(p);
4324 /* thi_hintset bitmap */
4325 status = decode_attr_bitmap(xdr, bitmap);
4329 /* thi_hintlist length */
4330 status = decode_attr_length(xdr, &attrlen, &savep);
4334 status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD);
4337 status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR);
4340 status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz,
4344 status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz,
4349 status = verify_attr_len(xdr, savep, attrlen);
4350 res->bm = bitmap[0];
4352 dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n",
4353 __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz,
4356 dprintk("%s ret=%d!\n", __func__, status);
4361 * Thresholds on pNFS direct I/O vrs MDS I/O
4363 static int decode_attr_mdsthreshold(struct xdr_stream *xdr,
4365 struct nfs4_threshold *res)
4371 if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U)))
4373 if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) {
4374 /* Did the server return an unrequested attribute? */
4375 if (unlikely(res == NULL))
4377 p = xdr_inline_decode(xdr, 4);
4380 num = be32_to_cpup(p);
4384 printk(KERN_INFO "%s: Warning: Multiple pNFS layout "
4385 "drivers per filesystem not supported\n",
4388 status = decode_first_threshold_item4(xdr, res);
4389 bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD;
4393 print_overflow_msg(__func__, xdr);
4397 static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap,
4398 struct nfs_fattr *fattr, struct nfs_fh *fh,
4399 struct nfs4_fs_locations *fs_loc,
4400 const struct nfs_server *server)
4407 status = decode_attr_type(xdr, bitmap, &type);
4412 fattr->mode |= nfs_type2fmt[type];
4413 fattr->valid |= status;
4416 status = decode_attr_change(xdr, bitmap, &fattr->change_attr);
4419 fattr->valid |= status;
4421 status = decode_attr_size(xdr, bitmap, &fattr->size);
4424 fattr->valid |= status;
4426 status = decode_attr_fsid(xdr, bitmap, &fattr->fsid);
4429 fattr->valid |= status;
4432 status = decode_attr_error(xdr, bitmap, &err);
4436 status = decode_attr_filehandle(xdr, bitmap, fh);
4440 status = decode_attr_fileid(xdr, bitmap, &fattr->fileid);
4443 fattr->valid |= status;
4445 status = decode_attr_fs_locations(xdr, bitmap, fs_loc);
4448 fattr->valid |= status;
4450 status = decode_attr_mode(xdr, bitmap, &fmode);
4454 fattr->mode |= fmode;
4455 fattr->valid |= status;
4458 status = decode_attr_nlink(xdr, bitmap, &fattr->nlink);
4461 fattr->valid |= status;
4463 status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name);
4466 fattr->valid |= status;
4468 status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name);
4471 fattr->valid |= status;
4473 status = decode_attr_rdev(xdr, bitmap, &fattr->rdev);
4476 fattr->valid |= status;
4478 status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used);
4481 fattr->valid |= status;
4483 status = decode_attr_time_access(xdr, bitmap, &fattr->atime);
4486 fattr->valid |= status;
4488 status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime);
4491 fattr->valid |= status;
4493 status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime);
4496 fattr->valid |= status;
4498 status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid);
4501 fattr->valid |= status;
4503 status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold);
4508 dprintk("%s: xdr returned %d\n", __func__, -status);
4512 static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr,
4513 struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc,
4514 const struct nfs_server *server)
4521 status = decode_op_hdr(xdr, OP_GETATTR);
4525 status = decode_attr_bitmap(xdr, bitmap);
4529 status = decode_attr_length(xdr, &attrlen, &savep);
4533 status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, server);
4537 status = verify_attr_len(xdr, savep, attrlen);
4539 dprintk("%s: xdr returned %d\n", __func__, -status);
4543 static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr,
4544 const struct nfs_server *server)
4546 return decode_getfattr_generic(xdr, fattr, NULL, NULL, server);
4550 * Decode potentially multiple layout types. Currently we only support
4551 * one layout driver per file system.
4553 static int decode_first_pnfs_layout_type(struct xdr_stream *xdr,
4554 uint32_t *layouttype)
4559 p = xdr_inline_decode(xdr, 4);
4562 num = be32_to_cpup(p);
4564 /* pNFS is not supported by the underlying file system */
4570 printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout "
4571 "drivers per filesystem not supported\n", __func__);
4573 /* Decode and set first layout type, move xdr->p past unused types */
4574 p = xdr_inline_decode(xdr, num * 4);
4577 *layouttype = be32_to_cpup(p);
4580 print_overflow_msg(__func__, xdr);
4585 * The type of file system exported.
4586 * Note we must ensure that layouttype is set in any non-error case.
4588 static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap,
4589 uint32_t *layouttype)
4593 dprintk("%s: bitmap is %x\n", __func__, bitmap[1]);
4594 if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U)))
4596 if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) {
4597 status = decode_first_pnfs_layout_type(xdr, layouttype);
4598 bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES;
4605 * The prefered block size for layout directed io
4607 static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap,
4612 dprintk("%s: bitmap is %x\n", __func__, bitmap[2]);
4614 if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) {
4615 p = xdr_inline_decode(xdr, 4);
4617 print_overflow_msg(__func__, xdr);
4620 *res = be32_to_cpup(p);
4621 bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE;
4626 static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
4629 uint32_t attrlen, bitmap[3];
4632 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4634 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4636 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4639 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
4641 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
4643 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
4645 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
4647 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
4648 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
4650 fsinfo->wtpref = fsinfo->wtmax;
4651 status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta);
4654 status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype);
4657 status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize);
4661 status = verify_attr_len(xdr, savep, attrlen);
4663 dprintk("%s: xdr returned %d!\n", __func__, -status);
4667 static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
4673 /* Zero handle first to allow comparisons */
4674 memset(fh, 0, sizeof(*fh));
4676 status = decode_op_hdr(xdr, OP_GETFH);
4680 p = xdr_inline_decode(xdr, 4);
4683 len = be32_to_cpup(p);
4684 if (len > NFS4_FHSIZE)
4687 p = xdr_inline_decode(xdr, len);
4690 memcpy(fh->data, p, len);
4693 print_overflow_msg(__func__, xdr);
4697 static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4701 status = decode_op_hdr(xdr, OP_LINK);
4704 return decode_change_info(xdr, cinfo);
4708 * We create the owner, so we know a proper owner.id length is 4.
4710 static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
4712 uint64_t offset, length, clientid;
4714 uint32_t namelen, type;
4716 p = xdr_inline_decode(xdr, 32); /* read 32 bytes */
4719 p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */
4720 p = xdr_decode_hyper(p, &length);
4721 type = be32_to_cpup(p++); /* 4 byte read */
4722 if (fl != NULL) { /* manipulate file lock */
4723 fl->fl_start = (loff_t)offset;
4724 fl->fl_end = fl->fl_start + (loff_t)length - 1;
4725 if (length == ~(uint64_t)0)
4726 fl->fl_end = OFFSET_MAX;
4727 fl->fl_type = F_WRLCK;
4729 fl->fl_type = F_RDLCK;
4732 p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */
4733 namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */
4734 p = xdr_inline_decode(xdr, namelen); /* variable size field */
4736 return -NFS4ERR_DENIED;
4738 print_overflow_msg(__func__, xdr);
4742 static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res)
4746 status = decode_op_hdr(xdr, OP_LOCK);
4750 status = decode_stateid(xdr, &res->stateid);
4751 if (unlikely(status))
4753 } else if (status == -NFS4ERR_DENIED)
4754 status = decode_lock_denied(xdr, NULL);
4755 if (res->open_seqid != NULL)
4756 nfs_increment_open_seqid(status, res->open_seqid);
4757 nfs_increment_lock_seqid(status, res->lock_seqid);
4762 static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res)
4765 status = decode_op_hdr(xdr, OP_LOCKT);
4766 if (status == -NFS4ERR_DENIED)
4767 return decode_lock_denied(xdr, res->denied);
4771 static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
4775 status = decode_op_hdr(xdr, OP_LOCKU);
4777 nfs_increment_lock_seqid(status, res->seqid);
4779 status = decode_stateid(xdr, &res->stateid);
4783 static int decode_release_lockowner(struct xdr_stream *xdr)
4785 return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER);
4788 static int decode_lookup(struct xdr_stream *xdr)
4790 return decode_op_hdr(xdr, OP_LOOKUP);
4793 /* This is too sick! */
4794 static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
4797 uint32_t limit_type, nblocks, blocksize;
4799 p = xdr_inline_decode(xdr, 12);
4802 limit_type = be32_to_cpup(p++);
4803 switch (limit_type) {
4805 xdr_decode_hyper(p, maxsize);
4808 nblocks = be32_to_cpup(p++);
4809 blocksize = be32_to_cpup(p);
4810 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
4814 print_overflow_msg(__func__, xdr);
4818 static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
4821 uint32_t delegation_type;
4824 p = xdr_inline_decode(xdr, 4);
4827 delegation_type = be32_to_cpup(p);
4828 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
4829 res->delegation_type = 0;
4832 status = decode_stateid(xdr, &res->delegation);
4833 if (unlikely(status))
4835 p = xdr_inline_decode(xdr, 4);
4838 res->do_recall = be32_to_cpup(p);
4840 switch (delegation_type) {
4841 case NFS4_OPEN_DELEGATE_READ:
4842 res->delegation_type = FMODE_READ;
4844 case NFS4_OPEN_DELEGATE_WRITE:
4845 res->delegation_type = FMODE_WRITE|FMODE_READ;
4846 if (decode_space_limit(xdr, &res->maxsize) < 0)
4849 return decode_ace(xdr, NULL, res->server->nfs_client);
4851 print_overflow_msg(__func__, xdr);
4855 static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
4858 uint32_t savewords, bmlen, i;
4861 status = decode_op_hdr(xdr, OP_OPEN);
4863 nfs_increment_open_seqid(status, res->seqid);
4865 status = decode_stateid(xdr, &res->stateid);
4866 if (unlikely(status))
4869 decode_change_info(xdr, &res->cinfo);
4871 p = xdr_inline_decode(xdr, 8);
4874 res->rflags = be32_to_cpup(p++);
4875 bmlen = be32_to_cpup(p);
4879 p = xdr_inline_decode(xdr, bmlen << 2);
4882 savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE);
4883 for (i = 0; i < savewords; ++i)
4884 res->attrset[i] = be32_to_cpup(p++);
4885 for (; i < NFS4_BITMAP_SIZE; i++)
4886 res->attrset[i] = 0;
4888 return decode_delegation(xdr, res);
4890 dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen);
4893 print_overflow_msg(__func__, xdr);
4897 static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
4901 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
4903 nfs_increment_open_seqid(status, res->seqid);
4905 status = decode_stateid(xdr, &res->stateid);
4909 static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
4913 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
4915 nfs_increment_open_seqid(status, res->seqid);
4917 status = decode_stateid(xdr, &res->stateid);
4921 static int decode_putfh(struct xdr_stream *xdr)
4923 return decode_op_hdr(xdr, OP_PUTFH);
4926 static int decode_putrootfh(struct xdr_stream *xdr)
4928 return decode_op_hdr(xdr, OP_PUTROOTFH);
4931 static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res)
4934 uint32_t count, eof, recvd;
4937 status = decode_op_hdr(xdr, OP_READ);
4940 p = xdr_inline_decode(xdr, 8);
4943 eof = be32_to_cpup(p++);
4944 count = be32_to_cpup(p);
4945 recvd = xdr_read_pages(xdr, count);
4946 if (count > recvd) {
4947 dprintk("NFS: server cheating in read reply: "
4948 "count %u > recvd %u\n", count, recvd);
4956 print_overflow_msg(__func__, xdr);
4960 static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
4965 status = decode_op_hdr(xdr, OP_READDIR);
4967 status = decode_verifier(xdr, readdir->verifier.data);
4968 if (unlikely(status))
4970 memcpy(verf, readdir->verifier.data, sizeof(verf));
4971 dprintk("%s: verifier = %08x:%08x\n",
4972 __func__, verf[0], verf[1]);
4973 return xdr_read_pages(xdr, xdr->buf->page_len);
4976 static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
4978 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
4983 status = decode_op_hdr(xdr, OP_READLINK);
4987 /* Convert length of symlink */
4988 p = xdr_inline_decode(xdr, 4);
4991 len = be32_to_cpup(p);
4992 if (len >= rcvbuf->page_len || len <= 0) {
4993 dprintk("nfs: server returned giant symlink!\n");
4994 return -ENAMETOOLONG;
4996 recvd = xdr_read_pages(xdr, len);
4998 dprintk("NFS: server cheating in readlink reply: "
4999 "count %u > recvd %u\n", len, recvd);
5003 * The XDR encode routine has set things up so that
5004 * the link text will be copied directly into the
5005 * buffer. We just have to do overflow-checking,
5006 * and and null-terminate the text (the VFS expects
5007 * null-termination).
5009 xdr_terminate_string(rcvbuf, len);
5012 print_overflow_msg(__func__, xdr);
5016 static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
5020 status = decode_op_hdr(xdr, OP_REMOVE);
5023 status = decode_change_info(xdr, cinfo);
5028 static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
5029 struct nfs4_change_info *new_cinfo)
5033 status = decode_op_hdr(xdr, OP_RENAME);
5036 if ((status = decode_change_info(xdr, old_cinfo)))
5038 status = decode_change_info(xdr, new_cinfo);
5043 static int decode_renew(struct xdr_stream *xdr)
5045 return decode_op_hdr(xdr, OP_RENEW);
5049 decode_restorefh(struct xdr_stream *xdr)
5051 return decode_op_hdr(xdr, OP_RESTOREFH);
5054 static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
5055 struct nfs_getaclres *res)
5061 unsigned int pg_offset;
5064 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
5067 xdr_enter_page(xdr, xdr->buf->page_len);
5069 /* Calculate the offset of the page data */
5070 pg_offset = xdr->buf->head[0].iov_len;
5072 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
5074 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
5077 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
5079 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
5081 /* The bitmap (xdr len + bitmaps) and the attr xdr len words
5082 * are stored with the acl data to handle the problem of
5083 * variable length bitmaps.*/
5084 res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset;
5085 res->acl_len = attrlen;
5087 /* Check for receive buffer overflow */
5088 if (res->acl_len > (xdr->nwords << 2) ||
5089 res->acl_len + res->acl_data_offset > xdr->buf->page_len) {
5090 res->acl_flags |= NFS4_ACL_TRUNC;
5091 dprintk("NFS: acl reply: attrlen %u > page_len %u\n",
5092 attrlen, xdr->nwords << 2);
5095 status = -EOPNOTSUPP;
5102 decode_savefh(struct xdr_stream *xdr)
5104 return decode_op_hdr(xdr, OP_SAVEFH);
5107 static int decode_setattr(struct xdr_stream *xdr)
5113 status = decode_op_hdr(xdr, OP_SETATTR);
5116 p = xdr_inline_decode(xdr, 4);
5119 bmlen = be32_to_cpup(p);
5120 p = xdr_inline_decode(xdr, bmlen << 2);
5124 print_overflow_msg(__func__, xdr);
5128 static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res)
5134 p = xdr_inline_decode(xdr, 8);
5137 opnum = be32_to_cpup(p++);
5138 if (opnum != OP_SETCLIENTID) {
5139 dprintk("nfs: decode_setclientid: Server returned operation"
5143 nfserr = be32_to_cpup(p);
5144 if (nfserr == NFS_OK) {
5145 p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE);
5148 p = xdr_decode_hyper(p, &res->clientid);
5149 memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE);
5150 } else if (nfserr == NFSERR_CLID_INUSE) {
5153 /* skip netid string */
5154 p = xdr_inline_decode(xdr, 4);
5157 len = be32_to_cpup(p);
5158 p = xdr_inline_decode(xdr, len);
5162 /* skip uaddr string */
5163 p = xdr_inline_decode(xdr, 4);
5166 len = be32_to_cpup(p);
5167 p = xdr_inline_decode(xdr, len);
5170 return -NFSERR_CLID_INUSE;
5172 return nfs4_stat_to_errno(nfserr);
5176 print_overflow_msg(__func__, xdr);
5180 static int decode_setclientid_confirm(struct xdr_stream *xdr)
5182 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
5185 static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
5190 status = decode_op_hdr(xdr, OP_WRITE);
5194 p = xdr_inline_decode(xdr, 8);
5197 res->count = be32_to_cpup(p++);
5198 res->verf->committed = be32_to_cpup(p++);
5199 return decode_write_verifier(xdr, &res->verf->verifier);
5201 print_overflow_msg(__func__, xdr);
5205 static int decode_delegreturn(struct xdr_stream *xdr)
5207 return decode_op_hdr(xdr, OP_DELEGRETURN);
5210 static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor)
5214 p = xdr_inline_decode(xdr, 4);
5217 flavor->gss.sec_oid4.len = be32_to_cpup(p);
5218 if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN)
5221 p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len);
5224 memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len);
5226 p = xdr_inline_decode(xdr, 8);
5229 flavor->gss.qop4 = be32_to_cpup(p++);
5230 flavor->gss.service = be32_to_cpup(p);
5235 print_overflow_msg(__func__, xdr);
5241 static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
5243 struct nfs4_secinfo_flavor *sec_flavor;
5248 p = xdr_inline_decode(xdr, 4);
5252 res->flavors->num_flavors = 0;
5253 num_flavors = be32_to_cpup(p);
5255 for (i = 0; i < num_flavors; i++) {
5256 sec_flavor = &res->flavors->flavors[i];
5257 if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE)
5260 p = xdr_inline_decode(xdr, 4);
5263 sec_flavor->flavor = be32_to_cpup(p);
5265 if (sec_flavor->flavor == RPC_AUTH_GSS) {
5266 status = decode_secinfo_gss(xdr, sec_flavor);
5270 res->flavors->num_flavors++;
5277 print_overflow_msg(__func__, xdr);
5281 static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
5283 int status = decode_op_hdr(xdr, OP_SECINFO);
5286 return decode_secinfo_common(xdr, res);
5289 #if defined(CONFIG_NFS_V4_1)
5290 static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
5292 int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME);
5295 return decode_secinfo_common(xdr, res);
5298 static int decode_exchange_id(struct xdr_stream *xdr,
5299 struct nfs41_exchange_id_res *res)
5305 uint32_t impl_id_count;
5307 status = decode_op_hdr(xdr, OP_EXCHANGE_ID);
5311 p = xdr_inline_decode(xdr, 8);
5314 xdr_decode_hyper(p, &res->clientid);
5315 p = xdr_inline_decode(xdr, 12);
5318 res->seqid = be32_to_cpup(p++);
5319 res->flags = be32_to_cpup(p++);
5321 /* We ask for SP4_NONE */
5322 dummy = be32_to_cpup(p);
5323 if (dummy != SP4_NONE)
5326 /* server_owner4.so_minor_id */
5327 p = xdr_inline_decode(xdr, 8);
5330 p = xdr_decode_hyper(p, &res->server_owner->minor_id);
5332 /* server_owner4.so_major_id */
5333 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5334 if (unlikely(status))
5336 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5338 memcpy(res->server_owner->major_id, dummy_str, dummy);
5339 res->server_owner->major_id_sz = dummy;
5342 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5343 if (unlikely(status))
5345 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5347 memcpy(res->server_scope->server_scope, dummy_str, dummy);
5348 res->server_scope->server_scope_sz = dummy;
5350 /* Implementation Id */
5351 p = xdr_inline_decode(xdr, 4);
5354 impl_id_count = be32_to_cpup(p++);
5356 if (impl_id_count) {
5358 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5359 if (unlikely(status))
5361 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5363 memcpy(res->impl_id->domain, dummy_str, dummy);
5366 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5367 if (unlikely(status))
5369 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5371 memcpy(res->impl_id->name, dummy_str, dummy);
5374 p = xdr_inline_decode(xdr, 12);
5377 p = xdr_decode_hyper(p, &res->impl_id->date.seconds);
5378 res->impl_id->date.nseconds = be32_to_cpup(p);
5380 /* if there's more than one entry, ignore the rest */
5384 print_overflow_msg(__func__, xdr);
5388 static int decode_chan_attrs(struct xdr_stream *xdr,
5389 struct nfs4_channel_attrs *attrs)
5394 p = xdr_inline_decode(xdr, 28);
5397 val = be32_to_cpup(p++); /* headerpadsz */
5399 return -EINVAL; /* no support for header padding yet */
5400 attrs->max_rqst_sz = be32_to_cpup(p++);
5401 attrs->max_resp_sz = be32_to_cpup(p++);
5402 attrs->max_resp_sz_cached = be32_to_cpup(p++);
5403 attrs->max_ops = be32_to_cpup(p++);
5404 attrs->max_reqs = be32_to_cpup(p++);
5405 nr_attrs = be32_to_cpup(p);
5406 if (unlikely(nr_attrs > 1)) {
5407 printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs "
5408 "count %u\n", __func__, nr_attrs);
5411 if (nr_attrs == 1) {
5412 p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */
5418 print_overflow_msg(__func__, xdr);
5422 static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid)
5424 return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN);
5427 static int decode_bind_conn_to_session(struct xdr_stream *xdr,
5428 struct nfs41_bind_conn_to_session_res *res)
5433 status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION);
5435 status = decode_sessionid(xdr, &res->session->sess_id);
5436 if (unlikely(status))
5439 /* dir flags, rdma mode bool */
5440 p = xdr_inline_decode(xdr, 8);
5444 res->dir = be32_to_cpup(p++);
5445 if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH)
5447 if (be32_to_cpup(p) == 0)
5448 res->use_conn_in_rdma_mode = false;
5450 res->use_conn_in_rdma_mode = true;
5454 print_overflow_msg(__func__, xdr);
5458 static int decode_create_session(struct xdr_stream *xdr,
5459 struct nfs41_create_session_res *res)
5463 struct nfs_client *clp = res->client;
5464 struct nfs4_session *session = clp->cl_session;
5466 status = decode_op_hdr(xdr, OP_CREATE_SESSION);
5468 status = decode_sessionid(xdr, &session->sess_id);
5469 if (unlikely(status))
5473 p = xdr_inline_decode(xdr, 8);
5476 clp->cl_seqid = be32_to_cpup(p++);
5477 session->flags = be32_to_cpup(p);
5479 /* Channel attributes */
5480 status = decode_chan_attrs(xdr, &session->fc_attrs);
5482 status = decode_chan_attrs(xdr, &session->bc_attrs);
5485 print_overflow_msg(__func__, xdr);
5489 static int decode_destroy_session(struct xdr_stream *xdr, void *dummy)
5491 return decode_op_hdr(xdr, OP_DESTROY_SESSION);
5494 static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy)
5496 return decode_op_hdr(xdr, OP_DESTROY_CLIENTID);
5499 static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy)
5501 return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE);
5503 #endif /* CONFIG_NFS_V4_1 */
5505 static int decode_sequence(struct xdr_stream *xdr,
5506 struct nfs4_sequence_res *res,
5507 struct rpc_rqst *rqstp)
5509 #if defined(CONFIG_NFS_V4_1)
5510 struct nfs4_session *session;
5511 struct nfs4_sessionid id;
5516 if (res->sr_slot == NULL)
5519 status = decode_op_hdr(xdr, OP_SEQUENCE);
5521 status = decode_sessionid(xdr, &id);
5522 if (unlikely(status))
5526 * If the server returns different values for sessionID, slotID or
5527 * sequence number, the server is looney tunes.
5529 status = -EREMOTEIO;
5530 session = res->sr_slot->table->session;
5532 if (memcmp(id.data, session->sess_id.data,
5533 NFS4_MAX_SESSIONID_LEN)) {
5534 dprintk("%s Invalid session id\n", __func__);
5538 p = xdr_inline_decode(xdr, 20);
5543 dummy = be32_to_cpup(p++);
5544 if (dummy != res->sr_slot->seq_nr) {
5545 dprintk("%s Invalid sequence number\n", __func__);
5549 dummy = be32_to_cpup(p++);
5550 if (dummy != res->sr_slot->slot_nr) {
5551 dprintk("%s Invalid slot id\n", __func__);
5554 /* highest slot id */
5555 res->sr_highest_slotid = be32_to_cpup(p++);
5556 /* target highest slot id */
5557 res->sr_target_highest_slotid = be32_to_cpup(p++);
5559 res->sr_status_flags = be32_to_cpup(p);
5562 res->sr_status = status;
5565 print_overflow_msg(__func__, xdr);
5568 #else /* CONFIG_NFS_V4_1 */
5570 #endif /* CONFIG_NFS_V4_1 */
5573 #if defined(CONFIG_NFS_V4_1)
5575 * TODO: Need to handle case when EOF != true;
5577 static int decode_getdevicelist(struct xdr_stream *xdr,
5578 struct pnfs_devicelist *res)
5582 nfs4_verifier verftemp;
5584 status = decode_op_hdr(xdr, OP_GETDEVICELIST);
5588 p = xdr_inline_decode(xdr, 8 + 8 + 4);
5592 /* TODO: Skip cookie for now */
5596 p = xdr_decode_opaque_fixed(p, verftemp.data, NFS4_VERIFIER_SIZE);
5598 res->num_devs = be32_to_cpup(p);
5600 dprintk("%s: num_dev %d\n", __func__, res->num_devs);
5602 if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) {
5603 printk(KERN_ERR "NFS: %s too many result dev_num %u\n",
5604 __func__, res->num_devs);
5608 p = xdr_inline_decode(xdr,
5609 res->num_devs * NFS4_DEVICEID4_SIZE + 4);
5612 for (i = 0; i < res->num_devs; i++)
5613 p = xdr_decode_opaque_fixed(p, res->dev_id[i].data,
5614 NFS4_DEVICEID4_SIZE);
5615 res->eof = be32_to_cpup(p);
5618 print_overflow_msg(__func__, xdr);
5622 static int decode_getdeviceinfo(struct xdr_stream *xdr,
5623 struct pnfs_device *pdev)
5629 status = decode_op_hdr(xdr, OP_GETDEVICEINFO);
5631 if (status == -ETOOSMALL) {
5632 p = xdr_inline_decode(xdr, 4);
5635 pdev->mincount = be32_to_cpup(p);
5636 dprintk("%s: Min count too small. mincnt = %u\n",
5637 __func__, pdev->mincount);
5642 p = xdr_inline_decode(xdr, 8);
5645 type = be32_to_cpup(p++);
5646 if (type != pdev->layout_type) {
5647 dprintk("%s: layout mismatch req: %u pdev: %u\n",
5648 __func__, pdev->layout_type, type);
5652 * Get the length of the opaque device_addr4. xdr_read_pages places
5653 * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages)
5654 * and places the remaining xdr data in xdr_buf->tail
5656 pdev->mincount = be32_to_cpup(p);
5657 if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount)
5660 /* Parse notification bitmap, verifying that it is zero. */
5661 p = xdr_inline_decode(xdr, 4);
5664 len = be32_to_cpup(p);
5668 p = xdr_inline_decode(xdr, 4 * len);
5671 for (i = 0; i < len; i++, p++) {
5672 if (be32_to_cpup(p)) {
5673 dprintk("%s: notifications not supported\n",
5681 print_overflow_msg(__func__, xdr);
5685 static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
5686 struct nfs4_layoutget_res *res)
5693 status = decode_op_hdr(xdr, OP_LAYOUTGET);
5696 p = xdr_inline_decode(xdr, 4);
5699 res->return_on_close = be32_to_cpup(p);
5700 decode_stateid(xdr, &res->stateid);
5701 p = xdr_inline_decode(xdr, 4);
5704 layout_count = be32_to_cpup(p);
5705 if (!layout_count) {
5706 dprintk("%s: server responded with empty layout array\n",
5711 p = xdr_inline_decode(xdr, 28);
5714 p = xdr_decode_hyper(p, &res->range.offset);
5715 p = xdr_decode_hyper(p, &res->range.length);
5716 res->range.iomode = be32_to_cpup(p++);
5717 res->type = be32_to_cpup(p++);
5718 res->layoutp->len = be32_to_cpup(p);
5720 dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n",
5722 (unsigned long)res->range.offset,
5723 (unsigned long)res->range.length,
5728 recvd = xdr_read_pages(xdr, res->layoutp->len);
5729 if (res->layoutp->len > recvd) {
5730 dprintk("NFS: server cheating in layoutget reply: "
5731 "layout len %u > recvd %u\n",
5732 res->layoutp->len, recvd);
5736 if (layout_count > 1) {
5737 /* We only handle a length one array at the moment. Any
5738 * further entries are just ignored. Note that this means
5739 * the client may see a response that is less than the
5740 * minimum it requested.
5742 dprintk("%s: server responded with %d layouts, dropping tail\n",
5743 __func__, layout_count);
5748 print_overflow_msg(__func__, xdr);
5752 static int decode_layoutreturn(struct xdr_stream *xdr,
5753 struct nfs4_layoutreturn_res *res)
5758 status = decode_op_hdr(xdr, OP_LAYOUTRETURN);
5761 p = xdr_inline_decode(xdr, 4);
5764 res->lrs_present = be32_to_cpup(p);
5765 if (res->lrs_present)
5766 status = decode_stateid(xdr, &res->stateid);
5769 print_overflow_msg(__func__, xdr);
5773 static int decode_layoutcommit(struct xdr_stream *xdr,
5774 struct rpc_rqst *req,
5775 struct nfs4_layoutcommit_res *res)
5781 status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT);
5782 res->status = status;
5786 p = xdr_inline_decode(xdr, 4);
5789 sizechanged = be32_to_cpup(p);
5792 /* throw away new size */
5793 p = xdr_inline_decode(xdr, 8);
5799 print_overflow_msg(__func__, xdr);
5803 static int decode_test_stateid(struct xdr_stream *xdr,
5804 struct nfs41_test_stateid_res *res)
5810 status = decode_op_hdr(xdr, OP_TEST_STATEID);
5814 p = xdr_inline_decode(xdr, 4);
5817 num_res = be32_to_cpup(p++);
5821 p = xdr_inline_decode(xdr, 4);
5824 res->status = be32_to_cpup(p++);
5828 print_overflow_msg(__func__, xdr);
5833 static int decode_free_stateid(struct xdr_stream *xdr,
5834 struct nfs41_free_stateid_res *res)
5839 status = decode_op_hdr(xdr, OP_FREE_STATEID);
5843 p = xdr_inline_decode(xdr, 4);
5846 res->status = be32_to_cpup(p++);
5849 print_overflow_msg(__func__, xdr);
5852 #endif /* CONFIG_NFS_V4_1 */
5855 * END OF "GENERIC" DECODE ROUTINES.
5859 * Decode OPEN_DOWNGRADE response
5861 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp,
5862 struct xdr_stream *xdr,
5863 struct nfs_closeres *res)
5865 struct compound_hdr hdr;
5868 status = decode_compound_hdr(xdr, &hdr);
5871 status = decode_sequence(xdr, &res->seq_res, rqstp);
5874 status = decode_putfh(xdr);
5877 status = decode_open_downgrade(xdr, res);
5880 decode_getfattr(xdr, res->fattr, res->server);
5886 * Decode ACCESS response
5888 static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5889 struct nfs4_accessres *res)
5891 struct compound_hdr hdr;
5894 status = decode_compound_hdr(xdr, &hdr);
5897 status = decode_sequence(xdr, &res->seq_res, rqstp);
5900 status = decode_putfh(xdr);
5903 status = decode_access(xdr, &res->supported, &res->access);
5906 decode_getfattr(xdr, res->fattr, res->server);
5912 * Decode LOOKUP response
5914 static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5915 struct nfs4_lookup_res *res)
5917 struct compound_hdr hdr;
5920 status = decode_compound_hdr(xdr, &hdr);
5923 status = decode_sequence(xdr, &res->seq_res, rqstp);
5926 status = decode_putfh(xdr);
5929 status = decode_lookup(xdr);
5932 status = decode_getfh(xdr, res->fh);
5935 status = decode_getfattr(xdr, res->fattr, res->server);
5941 * Decode LOOKUP_ROOT response
5943 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp,
5944 struct xdr_stream *xdr,
5945 struct nfs4_lookup_res *res)
5947 struct compound_hdr hdr;
5950 status = decode_compound_hdr(xdr, &hdr);
5953 status = decode_sequence(xdr, &res->seq_res, rqstp);
5956 status = decode_putrootfh(xdr);
5959 status = decode_getfh(xdr, res->fh);
5961 status = decode_getfattr(xdr, res->fattr, res->server);
5967 * Decode REMOVE response
5969 static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5970 struct nfs_removeres *res)
5972 struct compound_hdr hdr;
5975 status = decode_compound_hdr(xdr, &hdr);
5978 status = decode_sequence(xdr, &res->seq_res, rqstp);
5981 status = decode_putfh(xdr);
5984 status = decode_remove(xdr, &res->cinfo);
5990 * Decode RENAME response
5992 static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5993 struct nfs_renameres *res)
5995 struct compound_hdr hdr;
5998 status = decode_compound_hdr(xdr, &hdr);
6001 status = decode_sequence(xdr, &res->seq_res, rqstp);
6004 status = decode_putfh(xdr);
6007 status = decode_savefh(xdr);
6010 status = decode_putfh(xdr);
6013 status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo);
6019 * Decode LINK response
6021 static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6022 struct nfs4_link_res *res)
6024 struct compound_hdr hdr;
6027 status = decode_compound_hdr(xdr, &hdr);
6030 status = decode_sequence(xdr, &res->seq_res, rqstp);
6033 status = decode_putfh(xdr);
6036 status = decode_savefh(xdr);
6039 status = decode_putfh(xdr);
6042 status = decode_link(xdr, &res->cinfo);
6046 * Note order: OP_LINK leaves the directory as the current
6049 status = decode_restorefh(xdr);
6052 decode_getfattr(xdr, res->fattr, res->server);
6058 * Decode CREATE response
6060 static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6061 struct nfs4_create_res *res)
6063 struct compound_hdr hdr;
6066 status = decode_compound_hdr(xdr, &hdr);
6069 status = decode_sequence(xdr, &res->seq_res, rqstp);
6072 status = decode_putfh(xdr);
6075 status = decode_create(xdr, &res->dir_cinfo);
6078 status = decode_getfh(xdr, res->fh);
6081 decode_getfattr(xdr, res->fattr, res->server);
6087 * Decode SYMLINK response
6089 static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6090 struct nfs4_create_res *res)
6092 return nfs4_xdr_dec_create(rqstp, xdr, res);
6096 * Decode GETATTR response
6098 static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6099 struct nfs4_getattr_res *res)
6101 struct compound_hdr hdr;
6104 status = decode_compound_hdr(xdr, &hdr);
6107 status = decode_sequence(xdr, &res->seq_res, rqstp);
6110 status = decode_putfh(xdr);
6113 status = decode_getfattr(xdr, res->fattr, res->server);
6119 * Encode an SETACL request
6121 static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr,
6122 struct nfs_setaclargs *args)
6124 struct compound_hdr hdr = {
6125 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
6128 encode_compound_hdr(xdr, req, &hdr);
6129 encode_sequence(xdr, &args->seq_args, &hdr);
6130 encode_putfh(xdr, args->fh, &hdr);
6131 encode_setacl(xdr, args, &hdr);
6136 * Decode SETACL response
6139 nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6140 struct nfs_setaclres *res)
6142 struct compound_hdr hdr;
6145 status = decode_compound_hdr(xdr, &hdr);
6148 status = decode_sequence(xdr, &res->seq_res, rqstp);
6151 status = decode_putfh(xdr);
6154 status = decode_setattr(xdr);
6160 * Decode GETACL response
6163 nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6164 struct nfs_getaclres *res)
6166 struct compound_hdr hdr;
6169 if (res->acl_scratch != NULL) {
6170 void *p = page_address(res->acl_scratch);
6171 xdr_set_scratch_buffer(xdr, p, PAGE_SIZE);
6173 status = decode_compound_hdr(xdr, &hdr);
6176 status = decode_sequence(xdr, &res->seq_res, rqstp);
6179 status = decode_putfh(xdr);
6182 status = decode_getacl(xdr, rqstp, res);
6189 * Decode CLOSE response
6191 static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6192 struct nfs_closeres *res)
6194 struct compound_hdr hdr;
6197 status = decode_compound_hdr(xdr, &hdr);
6200 status = decode_sequence(xdr, &res->seq_res, rqstp);
6203 status = decode_putfh(xdr);
6206 status = decode_close(xdr, res);
6210 * Note: Server may do delete on close for this file
6211 * in which case the getattr call will fail with
6212 * an ESTALE error. Shouldn't be a problem,
6213 * though, since fattr->valid will remain unset.
6215 decode_getfattr(xdr, res->fattr, res->server);
6221 * Decode OPEN response
6223 static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6224 struct nfs_openres *res)
6226 struct compound_hdr hdr;
6229 status = decode_compound_hdr(xdr, &hdr);
6232 status = decode_sequence(xdr, &res->seq_res, rqstp);
6235 status = decode_putfh(xdr);
6238 status = decode_open(xdr, res);
6241 status = decode_getfh(xdr, &res->fh);
6244 if (res->access_request)
6245 decode_access(xdr, &res->access_supported, &res->access_result);
6246 decode_getfattr(xdr, res->f_attr, res->server);
6252 * Decode OPEN_CONFIRM response
6254 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp,
6255 struct xdr_stream *xdr,
6256 struct nfs_open_confirmres *res)
6258 struct compound_hdr hdr;
6261 status = decode_compound_hdr(xdr, &hdr);
6264 status = decode_putfh(xdr);
6267 status = decode_open_confirm(xdr, res);
6273 * Decode OPEN response
6275 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp,
6276 struct xdr_stream *xdr,
6277 struct nfs_openres *res)
6279 struct compound_hdr hdr;
6282 status = decode_compound_hdr(xdr, &hdr);
6285 status = decode_sequence(xdr, &res->seq_res, rqstp);
6288 status = decode_putfh(xdr);
6291 status = decode_open(xdr, res);
6294 if (res->access_request)
6295 decode_access(xdr, &res->access_supported, &res->access_result);
6296 decode_getfattr(xdr, res->f_attr, res->server);
6302 * Decode SETATTR response
6304 static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp,
6305 struct xdr_stream *xdr,
6306 struct nfs_setattrres *res)
6308 struct compound_hdr hdr;
6311 status = decode_compound_hdr(xdr, &hdr);
6314 status = decode_sequence(xdr, &res->seq_res, rqstp);
6317 status = decode_putfh(xdr);
6320 status = decode_setattr(xdr);
6323 decode_getfattr(xdr, res->fattr, res->server);
6329 * Decode LOCK response
6331 static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6332 struct nfs_lock_res *res)
6334 struct compound_hdr hdr;
6337 status = decode_compound_hdr(xdr, &hdr);
6340 status = decode_sequence(xdr, &res->seq_res, rqstp);
6343 status = decode_putfh(xdr);
6346 status = decode_lock(xdr, res);
6352 * Decode LOCKT response
6354 static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6355 struct nfs_lockt_res *res)
6357 struct compound_hdr hdr;
6360 status = decode_compound_hdr(xdr, &hdr);
6363 status = decode_sequence(xdr, &res->seq_res, rqstp);
6366 status = decode_putfh(xdr);
6369 status = decode_lockt(xdr, res);
6375 * Decode LOCKU response
6377 static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6378 struct nfs_locku_res *res)
6380 struct compound_hdr hdr;
6383 status = decode_compound_hdr(xdr, &hdr);
6386 status = decode_sequence(xdr, &res->seq_res, rqstp);
6389 status = decode_putfh(xdr);
6392 status = decode_locku(xdr, res);
6397 static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp,
6398 struct xdr_stream *xdr, void *dummy)
6400 struct compound_hdr hdr;
6403 status = decode_compound_hdr(xdr, &hdr);
6405 status = decode_release_lockowner(xdr);
6410 * Decode READLINK response
6412 static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp,
6413 struct xdr_stream *xdr,
6414 struct nfs4_readlink_res *res)
6416 struct compound_hdr hdr;
6419 status = decode_compound_hdr(xdr, &hdr);
6422 status = decode_sequence(xdr, &res->seq_res, rqstp);
6425 status = decode_putfh(xdr);
6428 status = decode_readlink(xdr, rqstp);
6434 * Decode READDIR response
6436 static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6437 struct nfs4_readdir_res *res)
6439 struct compound_hdr hdr;
6442 status = decode_compound_hdr(xdr, &hdr);
6445 status = decode_sequence(xdr, &res->seq_res, rqstp);
6448 status = decode_putfh(xdr);
6451 status = decode_readdir(xdr, rqstp, res);
6457 * Decode Read response
6459 static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6460 struct nfs_readres *res)
6462 struct compound_hdr hdr;
6465 status = decode_compound_hdr(xdr, &hdr);
6468 status = decode_sequence(xdr, &res->seq_res, rqstp);
6471 status = decode_putfh(xdr);
6474 status = decode_read(xdr, rqstp, res);
6476 status = res->count;
6482 * Decode WRITE response
6484 static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6485 struct nfs_writeres *res)
6487 struct compound_hdr hdr;
6490 status = decode_compound_hdr(xdr, &hdr);
6493 status = decode_sequence(xdr, &res->seq_res, rqstp);
6496 status = decode_putfh(xdr);
6499 status = decode_write(xdr, res);
6503 decode_getfattr(xdr, res->fattr, res->server);
6505 status = res->count;
6511 * Decode COMMIT response
6513 static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6514 struct nfs_commitres *res)
6516 struct compound_hdr hdr;
6519 status = decode_compound_hdr(xdr, &hdr);
6522 status = decode_sequence(xdr, &res->seq_res, rqstp);
6525 status = decode_putfh(xdr);
6528 status = decode_commit(xdr, res);
6534 * Decode FSINFO response
6536 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
6537 struct nfs4_fsinfo_res *res)
6539 struct compound_hdr hdr;
6542 status = decode_compound_hdr(xdr, &hdr);
6544 status = decode_sequence(xdr, &res->seq_res, req);
6546 status = decode_putfh(xdr);
6548 status = decode_fsinfo(xdr, res->fsinfo);
6553 * Decode PATHCONF response
6555 static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
6556 struct nfs4_pathconf_res *res)
6558 struct compound_hdr hdr;
6561 status = decode_compound_hdr(xdr, &hdr);
6563 status = decode_sequence(xdr, &res->seq_res, req);
6565 status = decode_putfh(xdr);
6567 status = decode_pathconf(xdr, res->pathconf);
6572 * Decode STATFS response
6574 static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
6575 struct nfs4_statfs_res *res)
6577 struct compound_hdr hdr;
6580 status = decode_compound_hdr(xdr, &hdr);
6582 status = decode_sequence(xdr, &res->seq_res, req);
6584 status = decode_putfh(xdr);
6586 status = decode_statfs(xdr, res->fsstat);
6591 * Decode GETATTR_BITMAP response
6593 static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req,
6594 struct xdr_stream *xdr,
6595 struct nfs4_server_caps_res *res)
6597 struct compound_hdr hdr;
6600 status = decode_compound_hdr(xdr, &hdr);
6603 status = decode_sequence(xdr, &res->seq_res, req);
6606 status = decode_putfh(xdr);
6609 status = decode_server_caps(xdr, res);
6615 * Decode RENEW response
6617 static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6620 struct compound_hdr hdr;
6623 status = decode_compound_hdr(xdr, &hdr);
6625 status = decode_renew(xdr);
6630 * Decode SETCLIENTID response
6632 static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req,
6633 struct xdr_stream *xdr,
6634 struct nfs4_setclientid_res *res)
6636 struct compound_hdr hdr;
6639 status = decode_compound_hdr(xdr, &hdr);
6641 status = decode_setclientid(xdr, res);
6646 * Decode SETCLIENTID_CONFIRM response
6648 static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req,
6649 struct xdr_stream *xdr,
6650 struct nfs_fsinfo *fsinfo)
6652 struct compound_hdr hdr;
6655 status = decode_compound_hdr(xdr, &hdr);
6657 status = decode_setclientid_confirm(xdr);
6659 status = decode_putrootfh(xdr);
6661 status = decode_fsinfo(xdr, fsinfo);
6666 * Decode DELEGRETURN response
6668 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp,
6669 struct xdr_stream *xdr,
6670 struct nfs4_delegreturnres *res)
6672 struct compound_hdr hdr;
6675 status = decode_compound_hdr(xdr, &hdr);
6678 status = decode_sequence(xdr, &res->seq_res, rqstp);
6681 status = decode_putfh(xdr);
6684 status = decode_getfattr(xdr, res->fattr, res->server);
6687 status = decode_delegreturn(xdr);
6693 * Decode FS_LOCATIONS response
6695 static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req,
6696 struct xdr_stream *xdr,
6697 struct nfs4_fs_locations_res *res)
6699 struct compound_hdr hdr;
6702 status = decode_compound_hdr(xdr, &hdr);
6705 status = decode_sequence(xdr, &res->seq_res, req);
6708 status = decode_putfh(xdr);
6711 status = decode_lookup(xdr);
6714 xdr_enter_page(xdr, PAGE_SIZE);
6715 status = decode_getfattr_generic(xdr, &res->fs_locations->fattr,
6716 NULL, res->fs_locations,
6717 res->fs_locations->server);
6723 * Decode SECINFO response
6725 static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp,
6726 struct xdr_stream *xdr,
6727 struct nfs4_secinfo_res *res)
6729 struct compound_hdr hdr;
6732 status = decode_compound_hdr(xdr, &hdr);
6735 status = decode_sequence(xdr, &res->seq_res, rqstp);
6738 status = decode_putfh(xdr);
6741 status = decode_secinfo(xdr, res);
6746 #if defined(CONFIG_NFS_V4_1)
6748 * Decode BIND_CONN_TO_SESSION response
6750 static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp,
6751 struct xdr_stream *xdr,
6754 struct compound_hdr hdr;
6757 status = decode_compound_hdr(xdr, &hdr);
6759 status = decode_bind_conn_to_session(xdr, res);
6764 * Decode EXCHANGE_ID response
6766 static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp,
6767 struct xdr_stream *xdr,
6770 struct compound_hdr hdr;
6773 status = decode_compound_hdr(xdr, &hdr);
6775 status = decode_exchange_id(xdr, res);
6780 * Decode CREATE_SESSION response
6782 static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp,
6783 struct xdr_stream *xdr,
6784 struct nfs41_create_session_res *res)
6786 struct compound_hdr hdr;
6789 status = decode_compound_hdr(xdr, &hdr);
6791 status = decode_create_session(xdr, res);
6796 * Decode DESTROY_SESSION response
6798 static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp,
6799 struct xdr_stream *xdr,
6802 struct compound_hdr hdr;
6805 status = decode_compound_hdr(xdr, &hdr);
6807 status = decode_destroy_session(xdr, res);
6812 * Decode DESTROY_CLIENTID response
6814 static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp,
6815 struct xdr_stream *xdr,
6818 struct compound_hdr hdr;
6821 status = decode_compound_hdr(xdr, &hdr);
6823 status = decode_destroy_clientid(xdr, res);
6828 * Decode SEQUENCE response
6830 static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp,
6831 struct xdr_stream *xdr,
6832 struct nfs4_sequence_res *res)
6834 struct compound_hdr hdr;
6837 status = decode_compound_hdr(xdr, &hdr);
6839 status = decode_sequence(xdr, res, rqstp);
6844 * Decode GET_LEASE_TIME response
6846 static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp,
6847 struct xdr_stream *xdr,
6848 struct nfs4_get_lease_time_res *res)
6850 struct compound_hdr hdr;
6853 status = decode_compound_hdr(xdr, &hdr);
6855 status = decode_sequence(xdr, &res->lr_seq_res, rqstp);
6857 status = decode_putrootfh(xdr);
6859 status = decode_fsinfo(xdr, res->lr_fsinfo);
6864 * Decode RECLAIM_COMPLETE response
6866 static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp,
6867 struct xdr_stream *xdr,
6868 struct nfs41_reclaim_complete_res *res)
6870 struct compound_hdr hdr;
6873 status = decode_compound_hdr(xdr, &hdr);
6875 status = decode_sequence(xdr, &res->seq_res, rqstp);
6877 status = decode_reclaim_complete(xdr, (void *)NULL);
6882 * Decode GETDEVICELIST response
6884 static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp,
6885 struct xdr_stream *xdr,
6886 struct nfs4_getdevicelist_res *res)
6888 struct compound_hdr hdr;
6891 dprintk("encoding getdevicelist!\n");
6893 status = decode_compound_hdr(xdr, &hdr);
6896 status = decode_sequence(xdr, &res->seq_res, rqstp);
6899 status = decode_putfh(xdr);
6902 status = decode_getdevicelist(xdr, res->devlist);
6908 * Decode GETDEVINFO response
6910 static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp,
6911 struct xdr_stream *xdr,
6912 struct nfs4_getdeviceinfo_res *res)
6914 struct compound_hdr hdr;
6917 status = decode_compound_hdr(xdr, &hdr);
6920 status = decode_sequence(xdr, &res->seq_res, rqstp);
6923 status = decode_getdeviceinfo(xdr, res->pdev);
6929 * Decode LAYOUTGET response
6931 static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp,
6932 struct xdr_stream *xdr,
6933 struct nfs4_layoutget_res *res)
6935 struct compound_hdr hdr;
6938 status = decode_compound_hdr(xdr, &hdr);
6941 status = decode_sequence(xdr, &res->seq_res, rqstp);
6944 status = decode_putfh(xdr);
6947 status = decode_layoutget(xdr, rqstp, res);
6953 * Decode LAYOUTRETURN response
6955 static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp,
6956 struct xdr_stream *xdr,
6957 struct nfs4_layoutreturn_res *res)
6959 struct compound_hdr hdr;
6962 status = decode_compound_hdr(xdr, &hdr);
6965 status = decode_sequence(xdr, &res->seq_res, rqstp);
6968 status = decode_putfh(xdr);
6971 status = decode_layoutreturn(xdr, res);
6977 * Decode LAYOUTCOMMIT response
6979 static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp,
6980 struct xdr_stream *xdr,
6981 struct nfs4_layoutcommit_res *res)
6983 struct compound_hdr hdr;
6986 status = decode_compound_hdr(xdr, &hdr);
6989 status = decode_sequence(xdr, &res->seq_res, rqstp);
6992 status = decode_putfh(xdr);
6995 status = decode_layoutcommit(xdr, rqstp, res);
6998 decode_getfattr(xdr, res->fattr, res->server);
7004 * Decode SECINFO_NO_NAME response
7006 static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp,
7007 struct xdr_stream *xdr,
7008 struct nfs4_secinfo_res *res)
7010 struct compound_hdr hdr;
7013 status = decode_compound_hdr(xdr, &hdr);
7016 status = decode_sequence(xdr, &res->seq_res, rqstp);
7019 status = decode_putrootfh(xdr);
7022 status = decode_secinfo_no_name(xdr, res);
7028 * Decode TEST_STATEID response
7030 static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp,
7031 struct xdr_stream *xdr,
7032 struct nfs41_test_stateid_res *res)
7034 struct compound_hdr hdr;
7037 status = decode_compound_hdr(xdr, &hdr);
7040 status = decode_sequence(xdr, &res->seq_res, rqstp);
7043 status = decode_test_stateid(xdr, res);
7049 * Decode FREE_STATEID response
7051 static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp,
7052 struct xdr_stream *xdr,
7053 struct nfs41_free_stateid_res *res)
7055 struct compound_hdr hdr;
7058 status = decode_compound_hdr(xdr, &hdr);
7061 status = decode_sequence(xdr, &res->seq_res, rqstp);
7064 status = decode_free_stateid(xdr, res);
7068 #endif /* CONFIG_NFS_V4_1 */
7071 * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in
7072 * the local page cache.
7073 * @xdr: XDR stream where entry resides
7074 * @entry: buffer to fill in with entry data
7075 * @plus: boolean indicating whether this should be a readdirplus entry
7077 * Returns zero if successful, otherwise a negative errno value is
7080 * This function is not invoked during READDIR reply decoding, but
7081 * rather whenever an application invokes the getdents(2) system call
7082 * on a directory already in our cache.
7084 int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
7088 uint32_t bitmap[3] = {0};
7090 __be32 *p = xdr_inline_decode(xdr, 4);
7093 if (*p == xdr_zero) {
7094 p = xdr_inline_decode(xdr, 4);
7103 p = xdr_inline_decode(xdr, 12);
7106 entry->prev_cookie = entry->cookie;
7107 p = xdr_decode_hyper(p, &entry->cookie);
7108 entry->len = be32_to_cpup(p);
7110 p = xdr_inline_decode(xdr, entry->len);
7113 entry->name = (const char *) p;
7116 * In case the server doesn't return an inode number,
7117 * we fake one here. (We don't use inode number 0,
7118 * since glibc seems to choke on it...)
7121 entry->fattr->valid = 0;
7123 if (decode_attr_bitmap(xdr, bitmap) < 0)
7126 if (decode_attr_length(xdr, &len, &savep) < 0)
7129 if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh,
7130 NULL, entry->server) < 0)
7132 if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID)
7133 entry->ino = entry->fattr->mounted_on_fileid;
7134 else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID)
7135 entry->ino = entry->fattr->fileid;
7137 entry->d_type = DT_UNKNOWN;
7138 if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE)
7139 entry->d_type = nfs_umode_to_dtype(entry->fattr->mode);
7144 print_overflow_msg(__func__, xdr);
7149 * We need to translate between nfs status return values and
7150 * the local errno values which may not be the same.
7157 { NFS4ERR_PERM, -EPERM },
7158 { NFS4ERR_NOENT, -ENOENT },
7159 { NFS4ERR_IO, -errno_NFSERR_IO},
7160 { NFS4ERR_NXIO, -ENXIO },
7161 { NFS4ERR_ACCESS, -EACCES },
7162 { NFS4ERR_EXIST, -EEXIST },
7163 { NFS4ERR_XDEV, -EXDEV },
7164 { NFS4ERR_NOTDIR, -ENOTDIR },
7165 { NFS4ERR_ISDIR, -EISDIR },
7166 { NFS4ERR_INVAL, -EINVAL },
7167 { NFS4ERR_FBIG, -EFBIG },
7168 { NFS4ERR_NOSPC, -ENOSPC },
7169 { NFS4ERR_ROFS, -EROFS },
7170 { NFS4ERR_MLINK, -EMLINK },
7171 { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG },
7172 { NFS4ERR_NOTEMPTY, -ENOTEMPTY },
7173 { NFS4ERR_DQUOT, -EDQUOT },
7174 { NFS4ERR_STALE, -ESTALE },
7175 { NFS4ERR_BADHANDLE, -EBADHANDLE },
7176 { NFS4ERR_BAD_COOKIE, -EBADCOOKIE },
7177 { NFS4ERR_NOTSUPP, -ENOTSUPP },
7178 { NFS4ERR_TOOSMALL, -ETOOSMALL },
7179 { NFS4ERR_SERVERFAULT, -EREMOTEIO },
7180 { NFS4ERR_BADTYPE, -EBADTYPE },
7181 { NFS4ERR_LOCKED, -EAGAIN },
7182 { NFS4ERR_SYMLINK, -ELOOP },
7183 { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP },
7184 { NFS4ERR_DEADLOCK, -EDEADLK },
7189 * Convert an NFS error code to a local one.
7190 * This one is used jointly by NFSv2 and NFSv3.
7193 nfs4_stat_to_errno(int stat)
7196 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
7197 if (nfs_errtbl[i].stat == stat)
7198 return nfs_errtbl[i].errno;
7200 if (stat <= 10000 || stat > 10100) {
7201 /* The server is looney tunes. */
7204 /* If we cannot translate the error, the recovery routines should
7206 * Note: remaining NFSv4 error codes have values > 10000, so should
7207 * not conflict with native Linux error codes.
7212 #define PROC(proc, argtype, restype) \
7213 [NFSPROC4_CLNT_##proc] = { \
7214 .p_proc = NFSPROC4_COMPOUND, \
7215 .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \
7216 .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \
7217 .p_arglen = NFS4_##argtype##_sz, \
7218 .p_replen = NFS4_##restype##_sz, \
7219 .p_statidx = NFSPROC4_CLNT_##proc, \
7223 struct rpc_procinfo nfs4_procedures[] = {
7224 PROC(READ, enc_read, dec_read),
7225 PROC(WRITE, enc_write, dec_write),
7226 PROC(COMMIT, enc_commit, dec_commit),
7227 PROC(OPEN, enc_open, dec_open),
7228 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
7229 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
7230 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
7231 PROC(CLOSE, enc_close, dec_close),
7232 PROC(SETATTR, enc_setattr, dec_setattr),
7233 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
7234 PROC(RENEW, enc_renew, dec_renew),
7235 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
7236 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
7237 PROC(LOCK, enc_lock, dec_lock),
7238 PROC(LOCKT, enc_lockt, dec_lockt),
7239 PROC(LOCKU, enc_locku, dec_locku),
7240 PROC(ACCESS, enc_access, dec_access),
7241 PROC(GETATTR, enc_getattr, dec_getattr),
7242 PROC(LOOKUP, enc_lookup, dec_lookup),
7243 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
7244 PROC(REMOVE, enc_remove, dec_remove),
7245 PROC(RENAME, enc_rename, dec_rename),
7246 PROC(LINK, enc_link, dec_link),
7247 PROC(SYMLINK, enc_symlink, dec_symlink),
7248 PROC(CREATE, enc_create, dec_create),
7249 PROC(PATHCONF, enc_pathconf, dec_pathconf),
7250 PROC(STATFS, enc_statfs, dec_statfs),
7251 PROC(READLINK, enc_readlink, dec_readlink),
7252 PROC(READDIR, enc_readdir, dec_readdir),
7253 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
7254 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
7255 PROC(GETACL, enc_getacl, dec_getacl),
7256 PROC(SETACL, enc_setacl, dec_setacl),
7257 PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
7258 PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner),
7259 PROC(SECINFO, enc_secinfo, dec_secinfo),
7260 #if defined(CONFIG_NFS_V4_1)
7261 PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
7262 PROC(CREATE_SESSION, enc_create_session, dec_create_session),
7263 PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session),
7264 PROC(SEQUENCE, enc_sequence, dec_sequence),
7265 PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time),
7266 PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete),
7267 PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo),
7268 PROC(LAYOUTGET, enc_layoutget, dec_layoutget),
7269 PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit),
7270 PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn),
7271 PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name),
7272 PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid),
7273 PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid),
7274 PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist),
7275 PROC(BIND_CONN_TO_SESSION,
7276 enc_bind_conn_to_session, dec_bind_conn_to_session),
7277 PROC(DESTROY_CLIENTID, enc_destroy_clientid, dec_destroy_clientid),
7278 #endif /* CONFIG_NFS_V4_1 */
7281 const struct rpc_version nfs_version4 = {
7283 .nrprocs = ARRAY_SIZE(nfs4_procedures),
7284 .procs = nfs4_procedures