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>
60 #define NFSDBG_FACILITY NFSDBG_XDR
62 /* Mapping from NFS error code to "errno" error code. */
63 #define errno_NFSERR_IO EIO
65 static int nfs4_stat_to_errno(int);
67 /* NFSv4 COMPOUND tags are only wanted for debugging purposes */
69 #define NFS4_MAXTAGLEN 20
71 #define NFS4_MAXTAGLEN 0
74 /* lock,open owner id:
75 * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
77 #define open_owner_id_maxsz (1 + 1 + 4)
78 #define lock_owner_id_maxsz (1 + 1 + 4)
79 #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
80 #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
81 #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
82 #define op_encode_hdr_maxsz (1)
83 #define op_decode_hdr_maxsz (2)
84 #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
85 #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
86 #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
87 #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
88 #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
90 #define decode_putfh_maxsz (op_decode_hdr_maxsz)
91 #define encode_putrootfh_maxsz (op_encode_hdr_maxsz)
92 #define decode_putrootfh_maxsz (op_decode_hdr_maxsz)
93 #define encode_getfh_maxsz (op_encode_hdr_maxsz)
94 #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
95 ((3+NFS4_FHSIZE) >> 2))
96 #define nfs4_fattr_bitmap_maxsz 4
97 #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
98 #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
99 #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
100 #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
101 #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
102 /* This is based on getfattr, which uses the most attributes: */
103 #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
104 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz))
105 #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
106 nfs4_fattr_value_maxsz)
107 #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
108 #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
113 #define encode_savefh_maxsz (op_encode_hdr_maxsz)
114 #define decode_savefh_maxsz (op_decode_hdr_maxsz)
115 #define encode_restorefh_maxsz (op_encode_hdr_maxsz)
116 #define decode_restorefh_maxsz (op_decode_hdr_maxsz)
117 #define encode_fsinfo_maxsz (encode_getattr_maxsz)
118 /* The 5 accounts for the PNFS attributes, and assumes that at most three
119 * layout types will be returned.
121 #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \
122 nfs4_fattr_bitmap_maxsz + 4 + 8 + 5)
123 #define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
124 #define decode_renew_maxsz (op_decode_hdr_maxsz)
125 #define encode_setclientid_maxsz \
126 (op_encode_hdr_maxsz + \
127 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
128 XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \
130 XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
131 XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
133 #define decode_setclientid_maxsz \
134 (op_decode_hdr_maxsz + \
136 1024) /* large value for CLID_INUSE */
137 #define encode_setclientid_confirm_maxsz \
138 (op_encode_hdr_maxsz + \
139 3 + (NFS4_VERIFIER_SIZE >> 2))
140 #define decode_setclientid_confirm_maxsz \
141 (op_decode_hdr_maxsz)
142 #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
143 #define decode_lookup_maxsz (op_decode_hdr_maxsz)
144 #define encode_share_access_maxsz \
146 #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
147 #define encode_opentype_maxsz (1 + encode_createmode_maxsz)
148 #define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
149 #define encode_open_maxsz (op_encode_hdr_maxsz + \
150 2 + encode_share_access_maxsz + 2 + \
151 open_owner_id_maxsz + \
152 encode_opentype_maxsz + \
153 encode_claim_null_maxsz)
154 #define decode_ace_maxsz (3 + nfs4_owner_maxsz)
155 #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
157 #define decode_change_info_maxsz (5)
158 #define decode_open_maxsz (op_decode_hdr_maxsz + \
159 decode_stateid_maxsz + \
160 decode_change_info_maxsz + 1 + \
161 nfs4_fattr_bitmap_maxsz + \
162 decode_delegation_maxsz)
163 #define encode_open_confirm_maxsz \
164 (op_encode_hdr_maxsz + \
165 encode_stateid_maxsz + 1)
166 #define decode_open_confirm_maxsz \
167 (op_decode_hdr_maxsz + \
168 decode_stateid_maxsz)
169 #define encode_open_downgrade_maxsz \
170 (op_encode_hdr_maxsz + \
171 encode_stateid_maxsz + 1 + \
172 encode_share_access_maxsz)
173 #define decode_open_downgrade_maxsz \
174 (op_decode_hdr_maxsz + \
175 decode_stateid_maxsz)
176 #define encode_close_maxsz (op_encode_hdr_maxsz + \
177 1 + encode_stateid_maxsz)
178 #define decode_close_maxsz (op_decode_hdr_maxsz + \
179 decode_stateid_maxsz)
180 #define encode_setattr_maxsz (op_encode_hdr_maxsz + \
181 encode_stateid_maxsz + \
183 #define decode_setattr_maxsz (op_decode_hdr_maxsz + \
184 nfs4_fattr_bitmap_maxsz)
185 #define encode_read_maxsz (op_encode_hdr_maxsz + \
186 encode_stateid_maxsz + 3)
187 #define decode_read_maxsz (op_decode_hdr_maxsz + 2)
188 #define encode_readdir_maxsz (op_encode_hdr_maxsz + \
189 2 + encode_verifier_maxsz + 5)
190 #define decode_readdir_maxsz (op_decode_hdr_maxsz + \
191 decode_verifier_maxsz)
192 #define encode_readlink_maxsz (op_encode_hdr_maxsz)
193 #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1)
194 #define encode_write_maxsz (op_encode_hdr_maxsz + \
195 encode_stateid_maxsz + 4)
196 #define decode_write_maxsz (op_decode_hdr_maxsz + \
197 2 + decode_verifier_maxsz)
198 #define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
199 #define decode_commit_maxsz (op_decode_hdr_maxsz + \
200 decode_verifier_maxsz)
201 #define encode_remove_maxsz (op_encode_hdr_maxsz + \
203 #define decode_remove_maxsz (op_decode_hdr_maxsz + \
204 decode_change_info_maxsz)
205 #define encode_rename_maxsz (op_encode_hdr_maxsz + \
207 #define decode_rename_maxsz (op_decode_hdr_maxsz + \
208 decode_change_info_maxsz + \
209 decode_change_info_maxsz)
210 #define encode_link_maxsz (op_encode_hdr_maxsz + \
212 #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
213 #define encode_lockowner_maxsz (7)
214 #define encode_lock_maxsz (op_encode_hdr_maxsz + \
216 1 + encode_stateid_maxsz + 1 + \
217 encode_lockowner_maxsz)
218 #define decode_lock_denied_maxsz \
219 (8 + decode_lockowner_maxsz)
220 #define decode_lock_maxsz (op_decode_hdr_maxsz + \
221 decode_lock_denied_maxsz)
222 #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
223 encode_lockowner_maxsz)
224 #define decode_lockt_maxsz (op_decode_hdr_maxsz + \
225 decode_lock_denied_maxsz)
226 #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
227 encode_stateid_maxsz + \
229 #define decode_locku_maxsz (op_decode_hdr_maxsz + \
230 decode_stateid_maxsz)
231 #define encode_release_lockowner_maxsz \
232 (op_encode_hdr_maxsz + \
233 encode_lockowner_maxsz)
234 #define decode_release_lockowner_maxsz \
235 (op_decode_hdr_maxsz)
236 #define encode_access_maxsz (op_encode_hdr_maxsz + 1)
237 #define decode_access_maxsz (op_decode_hdr_maxsz + 2)
238 #define encode_symlink_maxsz (op_encode_hdr_maxsz + \
239 1 + nfs4_name_maxsz + \
242 #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
243 #define encode_create_maxsz (op_encode_hdr_maxsz + \
244 1 + 2 + nfs4_name_maxsz + \
246 #define decode_create_maxsz (op_decode_hdr_maxsz + \
247 decode_change_info_maxsz + \
248 nfs4_fattr_bitmap_maxsz)
249 #define encode_statfs_maxsz (encode_getattr_maxsz)
250 #define decode_statfs_maxsz (decode_getattr_maxsz)
251 #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
252 #define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
253 #define encode_getacl_maxsz (encode_getattr_maxsz)
254 #define decode_getacl_maxsz (op_decode_hdr_maxsz + \
255 nfs4_fattr_bitmap_maxsz + 1)
256 #define encode_setacl_maxsz (op_encode_hdr_maxsz + \
257 encode_stateid_maxsz + 3)
258 #define decode_setacl_maxsz (decode_setattr_maxsz)
259 #define encode_fs_locations_maxsz \
260 (encode_getattr_maxsz)
261 #define decode_fs_locations_maxsz \
263 #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
264 #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4))
266 #if defined(CONFIG_NFS_V4_1)
267 #define NFS4_MAX_MACHINE_NAME_LEN (64)
269 #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
270 encode_verifier_maxsz + \
271 1 /* co_ownerid.len */ + \
272 XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \
275 0 /* SP4_NONE (for now) */ + \
276 1 /* implementation id array of size 1 */ + \
277 1 /* nii_domain */ + \
278 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
280 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
282 #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
283 2 /* eir_clientid */ + \
284 1 /* eir_sequenceid */ + \
285 1 /* eir_flags */ + \
287 0 /* SP4_NONE (for now) */ + \
288 2 /* eir_server_owner.so_minor_id */ + \
289 /* eir_server_owner.so_major_id<> */ \
290 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
291 /* eir_server_scope<> */ \
292 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
293 1 /* eir_server_impl_id array length */ + \
294 1 /* nii_domain */ + \
295 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
297 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
299 #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
300 #define decode_channel_attrs_maxsz (6 + \
301 1 /* ca_rdma_ird.len */ + \
303 #define encode_create_session_maxsz (op_encode_hdr_maxsz + \
304 2 /* csa_clientid */ + \
305 1 /* csa_sequence */ + \
306 1 /* csa_flags */ + \
307 encode_channel_attrs_maxsz + \
308 encode_channel_attrs_maxsz + \
309 1 /* csa_cb_program */ + \
310 1 /* csa_sec_parms.len (1) */ + \
311 1 /* cb_secflavor (AUTH_SYS) */ + \
313 1 /* machinename.len */ + \
314 XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
317 1 /* gids.len (0) */)
318 #define decode_create_session_maxsz (op_decode_hdr_maxsz + \
319 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
320 1 /* csr_sequence */ + \
321 1 /* csr_flags */ + \
322 decode_channel_attrs_maxsz + \
323 decode_channel_attrs_maxsz)
324 #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
325 #define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
326 #define encode_sequence_maxsz (op_encode_hdr_maxsz + \
327 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
328 #define decode_sequence_maxsz (op_decode_hdr_maxsz + \
329 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
330 #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
331 #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
332 #define encode_getdevicelist_maxsz (op_encode_hdr_maxsz + 4 + \
333 encode_verifier_maxsz)
334 #define decode_getdevicelist_maxsz (op_decode_hdr_maxsz + \
335 2 /* nfs_cookie4 gdlr_cookie */ + \
336 decode_verifier_maxsz \
337 /* verifier4 gdlr_verifier */ + \
338 1 /* gdlr_deviceid_list count */ + \
339 XDR_QUADLEN(NFS4_PNFS_GETDEVLIST_MAXNUM * \
340 NFS4_DEVICEID4_SIZE) \
341 /* gdlr_deviceid_list */ + \
342 1 /* bool gdlr_eof */)
343 #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \
344 XDR_QUADLEN(NFS4_DEVICEID4_SIZE))
345 #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \
346 1 /* layout type */ + \
347 1 /* opaque devaddr4 length */ + \
348 /* devaddr4 payload is read into page */ \
349 1 /* notification bitmap length */ + \
350 1 /* notification bitmap */)
351 #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \
352 encode_stateid_maxsz)
353 #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \
354 decode_stateid_maxsz + \
355 XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE))
356 #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \
360 encode_stateid_maxsz + \
361 1 /* new offset (true) */ + \
362 2 /* last byte written */ + \
363 1 /* nt_timechanged (false) */ + \
364 1 /* layoutupdate4 layout type */ + \
365 1 /* NULL filelayout layoutupdate4 payload */)
366 #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3)
367 #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \
368 encode_stateid_maxsz + \
369 1 /* FIXME: opaque lrf_body always empty at the moment */)
370 #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \
371 1 + decode_stateid_maxsz)
372 #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1)
373 #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz
374 #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \
375 XDR_QUADLEN(NFS4_STATEID_SIZE))
376 #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1)
377 #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \
378 XDR_QUADLEN(NFS4_STATEID_SIZE))
379 #define decode_free_stateid_maxsz (op_decode_hdr_maxsz + 1)
380 #else /* CONFIG_NFS_V4_1 */
381 #define encode_sequence_maxsz 0
382 #define decode_sequence_maxsz 0
383 #endif /* CONFIG_NFS_V4_1 */
385 #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
386 #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
387 #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
388 encode_sequence_maxsz + \
389 encode_putfh_maxsz + \
391 #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
392 decode_sequence_maxsz + \
393 decode_putfh_maxsz + \
395 #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
396 encode_sequence_maxsz + \
397 encode_putfh_maxsz + \
398 encode_readlink_maxsz)
399 #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
400 decode_sequence_maxsz + \
401 decode_putfh_maxsz + \
402 decode_readlink_maxsz)
403 #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
404 encode_sequence_maxsz + \
405 encode_putfh_maxsz + \
406 encode_readdir_maxsz)
407 #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
408 decode_sequence_maxsz + \
409 decode_putfh_maxsz + \
410 decode_readdir_maxsz)
411 #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
412 encode_sequence_maxsz + \
413 encode_putfh_maxsz + \
414 encode_write_maxsz + \
415 encode_getattr_maxsz)
416 #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
417 decode_sequence_maxsz + \
418 decode_putfh_maxsz + \
419 decode_write_maxsz + \
420 decode_getattr_maxsz)
421 #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
422 encode_sequence_maxsz + \
423 encode_putfh_maxsz + \
424 encode_commit_maxsz + \
425 encode_getattr_maxsz)
426 #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
427 decode_sequence_maxsz + \
428 decode_putfh_maxsz + \
429 decode_commit_maxsz + \
430 decode_getattr_maxsz)
431 #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
432 encode_sequence_maxsz + \
433 encode_putfh_maxsz + \
434 encode_savefh_maxsz + \
435 encode_open_maxsz + \
436 encode_getfh_maxsz + \
437 encode_getattr_maxsz + \
438 encode_restorefh_maxsz + \
439 encode_getattr_maxsz)
440 #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
441 decode_sequence_maxsz + \
442 decode_putfh_maxsz + \
443 decode_savefh_maxsz + \
444 decode_open_maxsz + \
445 decode_getfh_maxsz + \
446 decode_getattr_maxsz + \
447 decode_restorefh_maxsz + \
448 decode_getattr_maxsz)
449 #define NFS4_enc_open_confirm_sz \
450 (compound_encode_hdr_maxsz + \
451 encode_putfh_maxsz + \
452 encode_open_confirm_maxsz)
453 #define NFS4_dec_open_confirm_sz \
454 (compound_decode_hdr_maxsz + \
455 decode_putfh_maxsz + \
456 decode_open_confirm_maxsz)
457 #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
458 encode_sequence_maxsz + \
459 encode_putfh_maxsz + \
460 encode_open_maxsz + \
461 encode_getattr_maxsz)
462 #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
463 decode_sequence_maxsz + \
464 decode_putfh_maxsz + \
465 decode_open_maxsz + \
466 decode_getattr_maxsz)
467 #define NFS4_enc_open_downgrade_sz \
468 (compound_encode_hdr_maxsz + \
469 encode_sequence_maxsz + \
470 encode_putfh_maxsz + \
471 encode_open_downgrade_maxsz + \
472 encode_getattr_maxsz)
473 #define NFS4_dec_open_downgrade_sz \
474 (compound_decode_hdr_maxsz + \
475 decode_sequence_maxsz + \
476 decode_putfh_maxsz + \
477 decode_open_downgrade_maxsz + \
478 decode_getattr_maxsz)
479 #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
480 encode_sequence_maxsz + \
481 encode_putfh_maxsz + \
482 encode_close_maxsz + \
483 encode_getattr_maxsz)
484 #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
485 decode_sequence_maxsz + \
486 decode_putfh_maxsz + \
487 decode_close_maxsz + \
488 decode_getattr_maxsz)
489 #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
490 encode_sequence_maxsz + \
491 encode_putfh_maxsz + \
492 encode_setattr_maxsz + \
493 encode_getattr_maxsz)
494 #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
495 decode_sequence_maxsz + \
496 decode_putfh_maxsz + \
497 decode_setattr_maxsz + \
498 decode_getattr_maxsz)
499 #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
500 encode_sequence_maxsz + \
501 encode_putfh_maxsz + \
503 #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
504 decode_sequence_maxsz + \
505 decode_putfh_maxsz + \
507 #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
509 #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
511 #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
512 encode_setclientid_maxsz)
513 #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
514 decode_setclientid_maxsz)
515 #define NFS4_enc_setclientid_confirm_sz \
516 (compound_encode_hdr_maxsz + \
517 encode_setclientid_confirm_maxsz + \
518 encode_putrootfh_maxsz + \
520 #define NFS4_dec_setclientid_confirm_sz \
521 (compound_decode_hdr_maxsz + \
522 decode_setclientid_confirm_maxsz + \
523 decode_putrootfh_maxsz + \
525 #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
526 encode_sequence_maxsz + \
527 encode_putfh_maxsz + \
529 #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
530 decode_sequence_maxsz + \
531 decode_putfh_maxsz + \
533 #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
534 encode_sequence_maxsz + \
535 encode_putfh_maxsz + \
537 #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
538 decode_sequence_maxsz + \
539 decode_putfh_maxsz + \
541 #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
542 encode_sequence_maxsz + \
543 encode_putfh_maxsz + \
545 #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
546 decode_sequence_maxsz + \
547 decode_putfh_maxsz + \
549 #define NFS4_enc_release_lockowner_sz \
550 (compound_encode_hdr_maxsz + \
551 encode_lockowner_maxsz)
552 #define NFS4_dec_release_lockowner_sz \
553 (compound_decode_hdr_maxsz + \
554 decode_lockowner_maxsz)
555 #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
556 encode_sequence_maxsz + \
557 encode_putfh_maxsz + \
558 encode_access_maxsz + \
559 encode_getattr_maxsz)
560 #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
561 decode_sequence_maxsz + \
562 decode_putfh_maxsz + \
563 decode_access_maxsz + \
564 decode_getattr_maxsz)
565 #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
566 encode_sequence_maxsz + \
567 encode_putfh_maxsz + \
568 encode_getattr_maxsz)
569 #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
570 decode_sequence_maxsz + \
571 decode_putfh_maxsz + \
572 decode_getattr_maxsz)
573 #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
574 encode_sequence_maxsz + \
575 encode_putfh_maxsz + \
576 encode_lookup_maxsz + \
577 encode_getattr_maxsz + \
579 #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
580 decode_sequence_maxsz + \
581 decode_putfh_maxsz + \
582 decode_lookup_maxsz + \
583 decode_getattr_maxsz + \
585 #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
586 encode_sequence_maxsz + \
587 encode_putrootfh_maxsz + \
588 encode_getattr_maxsz + \
590 #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
591 decode_sequence_maxsz + \
592 decode_putrootfh_maxsz + \
593 decode_getattr_maxsz + \
595 #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
596 encode_sequence_maxsz + \
597 encode_putfh_maxsz + \
598 encode_remove_maxsz + \
599 encode_getattr_maxsz)
600 #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
601 decode_sequence_maxsz + \
602 decode_putfh_maxsz + \
603 decode_remove_maxsz + \
604 decode_getattr_maxsz)
605 #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
606 encode_sequence_maxsz + \
607 encode_putfh_maxsz + \
608 encode_savefh_maxsz + \
609 encode_putfh_maxsz + \
610 encode_rename_maxsz + \
611 encode_getattr_maxsz + \
612 encode_restorefh_maxsz + \
613 encode_getattr_maxsz)
614 #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
615 decode_sequence_maxsz + \
616 decode_putfh_maxsz + \
617 decode_savefh_maxsz + \
618 decode_putfh_maxsz + \
619 decode_rename_maxsz + \
620 decode_getattr_maxsz + \
621 decode_restorefh_maxsz + \
622 decode_getattr_maxsz)
623 #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
624 encode_sequence_maxsz + \
625 encode_putfh_maxsz + \
626 encode_savefh_maxsz + \
627 encode_putfh_maxsz + \
628 encode_link_maxsz + \
629 decode_getattr_maxsz + \
630 encode_restorefh_maxsz + \
631 decode_getattr_maxsz)
632 #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
633 decode_sequence_maxsz + \
634 decode_putfh_maxsz + \
635 decode_savefh_maxsz + \
636 decode_putfh_maxsz + \
637 decode_link_maxsz + \
638 decode_getattr_maxsz + \
639 decode_restorefh_maxsz + \
640 decode_getattr_maxsz)
641 #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
642 encode_sequence_maxsz + \
643 encode_putfh_maxsz + \
644 encode_symlink_maxsz + \
645 encode_getattr_maxsz + \
647 #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
648 decode_sequence_maxsz + \
649 decode_putfh_maxsz + \
650 decode_symlink_maxsz + \
651 decode_getattr_maxsz + \
653 #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
654 encode_sequence_maxsz + \
655 encode_putfh_maxsz + \
656 encode_savefh_maxsz + \
657 encode_create_maxsz + \
658 encode_getfh_maxsz + \
659 encode_getattr_maxsz + \
660 encode_restorefh_maxsz + \
661 encode_getattr_maxsz)
662 #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
663 decode_sequence_maxsz + \
664 decode_putfh_maxsz + \
665 decode_savefh_maxsz + \
666 decode_create_maxsz + \
667 decode_getfh_maxsz + \
668 decode_getattr_maxsz + \
669 decode_restorefh_maxsz + \
670 decode_getattr_maxsz)
671 #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
672 encode_sequence_maxsz + \
673 encode_putfh_maxsz + \
674 encode_getattr_maxsz)
675 #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
676 decode_sequence_maxsz + \
677 decode_putfh_maxsz + \
678 decode_getattr_maxsz)
679 #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
680 encode_sequence_maxsz + \
681 encode_putfh_maxsz + \
683 #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
684 decode_sequence_maxsz + \
685 decode_putfh_maxsz + \
687 #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
688 encode_sequence_maxsz + \
689 encode_putfh_maxsz + \
690 encode_getattr_maxsz)
691 #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
692 decode_sequence_maxsz + \
693 decode_putfh_maxsz + \
694 decode_getattr_maxsz)
695 #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
696 encode_sequence_maxsz + \
697 encode_putfh_maxsz + \
698 encode_delegreturn_maxsz + \
699 encode_getattr_maxsz)
700 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
701 decode_sequence_maxsz + \
702 decode_delegreturn_maxsz + \
703 decode_getattr_maxsz)
704 #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
705 encode_sequence_maxsz + \
706 encode_putfh_maxsz + \
708 #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
709 decode_sequence_maxsz + \
710 decode_putfh_maxsz + \
712 #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
713 encode_sequence_maxsz + \
714 encode_putfh_maxsz + \
716 #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
717 decode_sequence_maxsz + \
718 decode_putfh_maxsz + \
720 #define NFS4_enc_fs_locations_sz \
721 (compound_encode_hdr_maxsz + \
722 encode_sequence_maxsz + \
723 encode_putfh_maxsz + \
724 encode_lookup_maxsz + \
725 encode_fs_locations_maxsz)
726 #define NFS4_dec_fs_locations_sz \
727 (compound_decode_hdr_maxsz + \
728 decode_sequence_maxsz + \
729 decode_putfh_maxsz + \
730 decode_lookup_maxsz + \
731 decode_fs_locations_maxsz)
732 #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \
733 encode_sequence_maxsz + \
734 encode_putfh_maxsz + \
735 encode_secinfo_maxsz)
736 #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \
737 decode_sequence_maxsz + \
738 decode_putfh_maxsz + \
739 decode_secinfo_maxsz)
740 #if defined(CONFIG_NFS_V4_1)
741 #define NFS4_enc_exchange_id_sz \
742 (compound_encode_hdr_maxsz + \
743 encode_exchange_id_maxsz)
744 #define NFS4_dec_exchange_id_sz \
745 (compound_decode_hdr_maxsz + \
746 decode_exchange_id_maxsz)
747 #define NFS4_enc_create_session_sz \
748 (compound_encode_hdr_maxsz + \
749 encode_create_session_maxsz)
750 #define NFS4_dec_create_session_sz \
751 (compound_decode_hdr_maxsz + \
752 decode_create_session_maxsz)
753 #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
754 encode_destroy_session_maxsz)
755 #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
756 decode_destroy_session_maxsz)
757 #define NFS4_enc_sequence_sz \
758 (compound_decode_hdr_maxsz + \
759 encode_sequence_maxsz)
760 #define NFS4_dec_sequence_sz \
761 (compound_decode_hdr_maxsz + \
762 decode_sequence_maxsz)
763 #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
764 encode_sequence_maxsz + \
765 encode_putrootfh_maxsz + \
767 #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
768 decode_sequence_maxsz + \
769 decode_putrootfh_maxsz + \
771 #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
772 encode_sequence_maxsz + \
773 encode_reclaim_complete_maxsz)
774 #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
775 decode_sequence_maxsz + \
776 decode_reclaim_complete_maxsz)
777 #define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \
778 encode_sequence_maxsz + \
779 encode_putfh_maxsz + \
780 encode_getdevicelist_maxsz)
781 #define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \
782 decode_sequence_maxsz + \
783 decode_putfh_maxsz + \
784 decode_getdevicelist_maxsz)
785 #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \
786 encode_sequence_maxsz +\
787 encode_getdeviceinfo_maxsz)
788 #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \
789 decode_sequence_maxsz + \
790 decode_getdeviceinfo_maxsz)
791 #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \
792 encode_sequence_maxsz + \
793 encode_putfh_maxsz + \
794 encode_layoutget_maxsz)
795 #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \
796 decode_sequence_maxsz + \
797 decode_putfh_maxsz + \
798 decode_layoutget_maxsz)
799 #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \
800 encode_sequence_maxsz +\
801 encode_putfh_maxsz + \
802 encode_layoutcommit_maxsz + \
803 encode_getattr_maxsz)
804 #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \
805 decode_sequence_maxsz + \
806 decode_putfh_maxsz + \
807 decode_layoutcommit_maxsz + \
808 decode_getattr_maxsz)
809 #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \
810 encode_sequence_maxsz + \
811 encode_putfh_maxsz + \
812 encode_layoutreturn_maxsz)
813 #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \
814 decode_sequence_maxsz + \
815 decode_putfh_maxsz + \
816 decode_layoutreturn_maxsz)
817 #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \
818 encode_sequence_maxsz + \
819 encode_putrootfh_maxsz +\
820 encode_secinfo_no_name_maxsz)
821 #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \
822 decode_sequence_maxsz + \
823 decode_putrootfh_maxsz + \
824 decode_secinfo_no_name_maxsz)
825 #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \
826 encode_sequence_maxsz + \
827 encode_test_stateid_maxsz)
828 #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \
829 decode_sequence_maxsz + \
830 decode_test_stateid_maxsz)
831 #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \
832 encode_sequence_maxsz + \
833 encode_free_stateid_maxsz)
834 #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \
835 decode_sequence_maxsz + \
836 decode_free_stateid_maxsz)
838 const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
839 compound_encode_hdr_maxsz +
840 encode_sequence_maxsz +
842 encode_getattr_maxsz) *
845 const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
846 compound_decode_hdr_maxsz +
847 decode_sequence_maxsz +
848 decode_putfh_maxsz) *
850 #endif /* CONFIG_NFS_V4_1 */
852 static unsigned short send_implementation_id = 1;
854 module_param(send_implementation_id, ushort, 0644);
855 MODULE_PARM_DESC(send_implementation_id,
856 "Send implementation ID with NFSv4.1 exchange_id");
858 static const umode_t nfs_type2fmt[] = {
865 [NF4SOCK] = S_IFSOCK,
871 struct compound_hdr {
877 uint32_t replen; /* expected reply words */
881 static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes)
883 __be32 *p = xdr_reserve_space(xdr, nbytes);
888 static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len)
892 p = xdr_reserve_space(xdr, len);
893 xdr_encode_opaque_fixed(p, buf, len);
896 static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
900 p = reserve_space(xdr, 4 + len);
901 xdr_encode_opaque(p, str, len);
904 static void encode_uint32(struct xdr_stream *xdr, u32 n)
908 p = reserve_space(xdr, 4);
912 static void encode_uint64(struct xdr_stream *xdr, u64 n)
916 p = reserve_space(xdr, 8);
917 xdr_encode_hyper(p, n);
920 static void encode_nfs4_seqid(struct xdr_stream *xdr,
921 const struct nfs_seqid *seqid)
923 encode_uint32(xdr, seqid->sequence->counter);
926 static void encode_compound_hdr(struct xdr_stream *xdr,
927 struct rpc_rqst *req,
928 struct compound_hdr *hdr)
931 struct rpc_auth *auth = req->rq_cred->cr_auth;
933 /* initialize running count of expected bytes in reply.
934 * NOTE: the replied tag SHOULD be the same is the one sent,
935 * but this is not required as a MUST for the server to do so. */
936 hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen;
938 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN);
939 encode_string(xdr, hdr->taglen, hdr->tag);
940 p = reserve_space(xdr, 8);
941 *p++ = cpu_to_be32(hdr->minorversion);
943 *p = cpu_to_be32(hdr->nops);
946 static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op,
948 struct compound_hdr *hdr)
950 encode_uint32(xdr, op);
952 hdr->replen += replen;
955 static void encode_nops(struct compound_hdr *hdr)
957 BUG_ON(hdr->nops > NFS4_MAX_OPS);
958 *hdr->nops_p = htonl(hdr->nops);
961 static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid)
963 encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE);
966 static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
968 encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE);
971 static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
973 char owner_name[IDMAP_NAMESZ];
974 char owner_group[IDMAP_NAMESZ];
975 int owner_namelen = 0;
976 int owner_grouplen = 0;
984 * We reserve enough space to write the entire attribute buffer at once.
985 * In the worst-case, this would be
986 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
987 * = 36 bytes, plus any contribution from variable-length fields
988 * such as owner/group.
993 if (iap->ia_valid & ATTR_SIZE)
995 if (iap->ia_valid & ATTR_MODE)
997 if (iap->ia_valid & ATTR_UID) {
998 owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ);
999 if (owner_namelen < 0) {
1000 dprintk("nfs: couldn't resolve uid %d to string\n",
1003 strcpy(owner_name, "nobody");
1004 owner_namelen = sizeof("nobody") - 1;
1007 len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
1009 if (iap->ia_valid & ATTR_GID) {
1010 owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ);
1011 if (owner_grouplen < 0) {
1012 dprintk("nfs: couldn't resolve gid %d to string\n",
1014 strcpy(owner_group, "nobody");
1015 owner_grouplen = sizeof("nobody") - 1;
1018 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
1020 if (iap->ia_valid & ATTR_ATIME_SET)
1022 else if (iap->ia_valid & ATTR_ATIME)
1024 if (iap->ia_valid & ATTR_MTIME_SET)
1026 else if (iap->ia_valid & ATTR_MTIME)
1028 p = reserve_space(xdr, len);
1031 * We write the bitmap length now, but leave the bitmap and the attribute
1032 * buffer length to be backfilled at the end of this routine.
1034 *p++ = cpu_to_be32(2);
1038 if (iap->ia_valid & ATTR_SIZE) {
1039 bmval0 |= FATTR4_WORD0_SIZE;
1040 p = xdr_encode_hyper(p, iap->ia_size);
1042 if (iap->ia_valid & ATTR_MODE) {
1043 bmval1 |= FATTR4_WORD1_MODE;
1044 *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
1046 if (iap->ia_valid & ATTR_UID) {
1047 bmval1 |= FATTR4_WORD1_OWNER;
1048 p = xdr_encode_opaque(p, owner_name, owner_namelen);
1050 if (iap->ia_valid & ATTR_GID) {
1051 bmval1 |= FATTR4_WORD1_OWNER_GROUP;
1052 p = xdr_encode_opaque(p, owner_group, owner_grouplen);
1054 if (iap->ia_valid & ATTR_ATIME_SET) {
1055 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
1056 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
1057 *p++ = cpu_to_be32(0);
1058 *p++ = cpu_to_be32(iap->ia_atime.tv_sec);
1059 *p++ = cpu_to_be32(iap->ia_atime.tv_nsec);
1061 else if (iap->ia_valid & ATTR_ATIME) {
1062 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
1063 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
1065 if (iap->ia_valid & ATTR_MTIME_SET) {
1066 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
1067 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
1068 *p++ = cpu_to_be32(0);
1069 *p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
1070 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
1072 else if (iap->ia_valid & ATTR_MTIME) {
1073 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
1074 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
1078 * Now we backfill the bitmap and the attribute buffer length.
1080 if (len != ((char *)p - (char *)q) + 4) {
1081 printk(KERN_ERR "NFS: Attr length error, %u != %Zu\n",
1082 len, ((char *)p - (char *)q) + 4);
1085 len = (char *)p - (char *)q - 12;
1086 *q++ = htonl(bmval0);
1087 *q++ = htonl(bmval1);
1093 static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr)
1095 encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr);
1096 encode_uint32(xdr, access);
1099 static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
1101 encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr);
1102 encode_nfs4_seqid(xdr, arg->seqid);
1103 encode_nfs4_stateid(xdr, arg->stateid);
1106 static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
1110 encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr);
1111 p = reserve_space(xdr, 12);
1112 p = xdr_encode_hyper(p, args->offset);
1113 *p = cpu_to_be32(args->count);
1116 static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr)
1120 encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr);
1121 encode_uint32(xdr, create->ftype);
1123 switch (create->ftype) {
1125 p = reserve_space(xdr, 4);
1126 *p = cpu_to_be32(create->u.symlink.len);
1127 xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len);
1130 case NF4BLK: case NF4CHR:
1131 p = reserve_space(xdr, 8);
1132 *p++ = cpu_to_be32(create->u.device.specdata1);
1133 *p = cpu_to_be32(create->u.device.specdata2);
1140 encode_string(xdr, create->name->len, create->name->name);
1141 encode_attrs(xdr, create->attrs, create->server);
1144 static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr)
1148 encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
1149 p = reserve_space(xdr, 8);
1150 *p++ = cpu_to_be32(1);
1151 *p = cpu_to_be32(bitmap);
1154 static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr)
1158 encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
1159 p = reserve_space(xdr, 12);
1160 *p++ = cpu_to_be32(2);
1161 *p++ = cpu_to_be32(bm0);
1162 *p = cpu_to_be32(bm1);
1166 encode_getattr_three(struct xdr_stream *xdr,
1167 uint32_t bm0, uint32_t bm1, uint32_t bm2,
1168 struct compound_hdr *hdr)
1172 encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr);
1174 p = reserve_space(xdr, 16);
1175 *p++ = cpu_to_be32(3);
1176 *p++ = cpu_to_be32(bm0);
1177 *p++ = cpu_to_be32(bm1);
1178 *p = cpu_to_be32(bm2);
1180 p = reserve_space(xdr, 12);
1181 *p++ = cpu_to_be32(2);
1182 *p++ = cpu_to_be32(bm0);
1183 *p = cpu_to_be32(bm1);
1185 p = reserve_space(xdr, 8);
1186 *p++ = cpu_to_be32(1);
1187 *p = cpu_to_be32(bm0);
1191 static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1193 encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0],
1194 bitmask[1] & nfs4_fattr_bitmap[1], hdr);
1197 static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1199 encode_getattr_three(xdr,
1200 bitmask[0] & nfs4_fsinfo_bitmap[0],
1201 bitmask[1] & nfs4_fsinfo_bitmap[1],
1202 bitmask[2] & nfs4_fsinfo_bitmap[2],
1206 static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1208 encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0],
1209 bitmask[1] & nfs4_fs_locations_bitmap[1], hdr);
1212 static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1214 encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr);
1217 static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1219 encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr);
1220 encode_string(xdr, name->len, name->name);
1223 static inline int nfs4_lock_type(struct file_lock *fl, int block)
1225 if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK)
1226 return block ? NFS4_READW_LT : NFS4_READ_LT;
1227 return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT;
1230 static inline uint64_t nfs4_lock_length(struct file_lock *fl)
1232 if (fl->fl_end == OFFSET_MAX)
1233 return ~(uint64_t)0;
1234 return fl->fl_end - fl->fl_start + 1;
1237 static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner)
1241 p = reserve_space(xdr, 32);
1242 p = xdr_encode_hyper(p, lowner->clientid);
1243 *p++ = cpu_to_be32(20);
1244 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
1245 *p++ = cpu_to_be32(lowner->s_dev);
1246 xdr_encode_hyper(p, lowner->id);
1250 * opcode,type,reclaim,offset,length,new_lock_owner = 32
1251 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
1253 static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr)
1257 encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr);
1258 p = reserve_space(xdr, 28);
1259 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block));
1260 *p++ = cpu_to_be32(args->reclaim);
1261 p = xdr_encode_hyper(p, args->fl->fl_start);
1262 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1263 *p = cpu_to_be32(args->new_lock_owner);
1264 if (args->new_lock_owner){
1265 encode_nfs4_seqid(xdr, args->open_seqid);
1266 encode_nfs4_stateid(xdr, args->open_stateid);
1267 encode_nfs4_seqid(xdr, args->lock_seqid);
1268 encode_lockowner(xdr, &args->lock_owner);
1271 encode_nfs4_stateid(xdr, args->lock_stateid);
1272 encode_nfs4_seqid(xdr, args->lock_seqid);
1276 static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr)
1280 encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr);
1281 p = reserve_space(xdr, 20);
1282 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1283 p = xdr_encode_hyper(p, args->fl->fl_start);
1284 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1285 encode_lockowner(xdr, &args->lock_owner);
1288 static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr)
1292 encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr);
1293 encode_uint32(xdr, nfs4_lock_type(args->fl, 0));
1294 encode_nfs4_seqid(xdr, args->seqid);
1295 encode_nfs4_stateid(xdr, args->stateid);
1296 p = reserve_space(xdr, 16);
1297 p = xdr_encode_hyper(p, args->fl->fl_start);
1298 xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1301 static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr)
1303 encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr);
1304 encode_lockowner(xdr, lowner);
1307 static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1309 encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr);
1310 encode_string(xdr, name->len, name->name);
1313 static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode)
1317 p = reserve_space(xdr, 8);
1318 switch (fmode & (FMODE_READ|FMODE_WRITE)) {
1320 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ);
1323 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE);
1325 case FMODE_READ|FMODE_WRITE:
1326 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH);
1329 *p++ = cpu_to_be32(0);
1331 *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */
1334 static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1338 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1341 encode_nfs4_seqid(xdr, arg->seqid);
1342 encode_share_access(xdr, arg->fmode);
1343 p = reserve_space(xdr, 32);
1344 p = xdr_encode_hyper(p, arg->clientid);
1345 *p++ = cpu_to_be32(20);
1346 p = xdr_encode_opaque_fixed(p, "open id:", 8);
1347 *p++ = cpu_to_be32(arg->server->s_dev);
1348 xdr_encode_hyper(p, arg->id);
1351 static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1354 struct nfs_client *clp;
1356 p = reserve_space(xdr, 4);
1357 switch(arg->open_flags & O_EXCL) {
1359 *p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
1360 encode_attrs(xdr, arg->u.attrs, arg->server);
1363 clp = arg->server->nfs_client;
1364 if (clp->cl_mvops->minor_version > 0) {
1365 if (nfs4_has_persistent_session(clp)) {
1366 *p = cpu_to_be32(NFS4_CREATE_GUARDED);
1367 encode_attrs(xdr, arg->u.attrs, arg->server);
1371 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1);
1372 encode_nfs4_verifier(xdr, &arg->u.verifier);
1374 encode_attrs(xdr, &dummy, arg->server);
1377 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
1378 encode_nfs4_verifier(xdr, &arg->u.verifier);
1383 static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1387 p = reserve_space(xdr, 4);
1388 switch (arg->open_flags & O_CREAT) {
1390 *p = cpu_to_be32(NFS4_OPEN_NOCREATE);
1393 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
1394 *p = cpu_to_be32(NFS4_OPEN_CREATE);
1395 encode_createmode(xdr, arg);
1399 static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type)
1403 p = reserve_space(xdr, 4);
1404 switch (delegation_type) {
1406 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE);
1409 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ);
1411 case FMODE_WRITE|FMODE_READ:
1412 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE);
1419 static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
1423 p = reserve_space(xdr, 4);
1424 *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL);
1425 encode_string(xdr, name->len, name->name);
1428 static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type)
1432 p = reserve_space(xdr, 4);
1433 *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS);
1434 encode_delegation_type(xdr, type);
1437 static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
1441 p = reserve_space(xdr, 4);
1442 *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
1443 encode_nfs4_stateid(xdr, stateid);
1444 encode_string(xdr, name->len, name->name);
1447 static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr)
1449 encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr);
1450 encode_openhdr(xdr, arg);
1451 encode_opentype(xdr, arg);
1452 switch (arg->claim) {
1453 case NFS4_OPEN_CLAIM_NULL:
1454 encode_claim_null(xdr, arg->name);
1456 case NFS4_OPEN_CLAIM_PREVIOUS:
1457 encode_claim_previous(xdr, arg->u.delegation_type);
1459 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
1460 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
1467 static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr)
1469 encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr);
1470 encode_nfs4_stateid(xdr, arg->stateid);
1471 encode_nfs4_seqid(xdr, arg->seqid);
1474 static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
1476 encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr);
1477 encode_nfs4_stateid(xdr, arg->stateid);
1478 encode_nfs4_seqid(xdr, arg->seqid);
1479 encode_share_access(xdr, arg->fmode);
1483 encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr)
1485 encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr);
1486 encode_string(xdr, fh->size, fh->data);
1489 static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1491 encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr);
1494 static void encode_open_stateid(struct xdr_stream *xdr,
1495 const struct nfs_open_context *ctx,
1496 const struct nfs_lock_context *l_ctx,
1500 nfs4_stateid stateid;
1502 if (ctx->state != NULL) {
1503 nfs4_select_rw_stateid(&stateid, ctx->state,
1504 fmode, l_ctx->lockowner, l_ctx->pid);
1507 encode_nfs4_stateid(xdr, &stateid);
1509 encode_nfs4_stateid(xdr, &zero_stateid);
1512 static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr)
1516 encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr);
1517 encode_open_stateid(xdr, args->context, args->lock_context,
1518 FMODE_READ, hdr->minorversion);
1520 p = reserve_space(xdr, 12);
1521 p = xdr_encode_hyper(p, args->offset);
1522 *p = cpu_to_be32(args->count);
1525 static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr)
1527 uint32_t attrs[2] = {
1528 FATTR4_WORD0_RDATTR_ERROR,
1529 FATTR4_WORD1_MOUNTED_ON_FILEID,
1531 uint32_t dircount = readdir->count >> 1;
1534 if (readdir->plus) {
1535 attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE|
1536 FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID;
1537 attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER|
1538 FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV|
1539 FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS|
1540 FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
1543 /* Use mounted_on_fileid only if the server supports it */
1544 if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID))
1545 attrs[0] |= FATTR4_WORD0_FILEID;
1547 encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr);
1548 encode_uint64(xdr, readdir->cookie);
1549 encode_nfs4_verifier(xdr, &readdir->verifier);
1550 p = reserve_space(xdr, 20);
1551 *p++ = cpu_to_be32(dircount);
1552 *p++ = cpu_to_be32(readdir->count);
1553 *p++ = cpu_to_be32(2);
1555 *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]);
1556 *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]);
1557 memcpy(verf, readdir->verifier.data, sizeof(verf));
1558 dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n",
1560 (unsigned long long)readdir->cookie,
1562 attrs[0] & readdir->bitmask[0],
1563 attrs[1] & readdir->bitmask[1]);
1566 static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr)
1568 encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr);
1571 static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1573 encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr);
1574 encode_string(xdr, name->len, name->name);
1577 static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr)
1579 encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr);
1580 encode_string(xdr, oldname->len, oldname->name);
1581 encode_string(xdr, newname->len, newname->name);
1584 static void encode_renew(struct xdr_stream *xdr, clientid4 clid,
1585 struct compound_hdr *hdr)
1587 encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr);
1588 encode_uint64(xdr, clid);
1592 encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1594 encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr);
1598 encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr)
1602 encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr);
1603 encode_nfs4_stateid(xdr, &zero_stateid);
1604 p = reserve_space(xdr, 2*4);
1605 *p++ = cpu_to_be32(1);
1606 *p = cpu_to_be32(FATTR4_WORD0_ACL);
1607 BUG_ON(arg->acl_len % 4);
1608 p = reserve_space(xdr, 4);
1609 *p = cpu_to_be32(arg->acl_len);
1610 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
1614 encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1616 encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr);
1619 static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr)
1621 encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr);
1622 encode_nfs4_stateid(xdr, &arg->stateid);
1623 encode_attrs(xdr, arg->iap, server);
1626 static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr)
1630 encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr);
1631 encode_nfs4_verifier(xdr, setclientid->sc_verifier);
1633 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
1634 p = reserve_space(xdr, 4);
1635 *p = cpu_to_be32(setclientid->sc_prog);
1636 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1637 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
1638 p = reserve_space(xdr, 4);
1639 *p = cpu_to_be32(setclientid->sc_cb_ident);
1642 static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr)
1644 encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM,
1645 decode_setclientid_confirm_maxsz, hdr);
1646 encode_uint64(xdr, arg->clientid);
1647 encode_nfs4_verifier(xdr, &arg->confirm);
1650 static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
1654 encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr);
1655 encode_open_stateid(xdr, args->context, args->lock_context,
1656 FMODE_WRITE, hdr->minorversion);
1658 p = reserve_space(xdr, 16);
1659 p = xdr_encode_hyper(p, args->offset);
1660 *p++ = cpu_to_be32(args->stable);
1661 *p = cpu_to_be32(args->count);
1663 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
1666 static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr)
1668 encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr);
1669 encode_nfs4_stateid(xdr, stateid);
1672 static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1674 encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr);
1675 encode_string(xdr, name->len, name->name);
1678 #if defined(CONFIG_NFS_V4_1)
1679 /* NFSv4.1 operations */
1680 static void encode_exchange_id(struct xdr_stream *xdr,
1681 struct nfs41_exchange_id_args *args,
1682 struct compound_hdr *hdr)
1685 char impl_name[NFS4_OPAQUE_LIMIT];
1688 encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr);
1689 encode_nfs4_verifier(xdr, args->verifier);
1691 encode_string(xdr, args->id_len, args->id);
1693 p = reserve_space(xdr, 12);
1694 *p++ = cpu_to_be32(args->flags);
1695 *p++ = cpu_to_be32(0); /* zero length state_protect4_a */
1697 if (send_implementation_id &&
1698 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 &&
1699 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN)
1700 <= NFS4_OPAQUE_LIMIT + 1)
1701 len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s",
1702 utsname()->sysname, utsname()->release,
1703 utsname()->version, utsname()->machine);
1706 *p = cpu_to_be32(1); /* implementation id array length=1 */
1709 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1,
1710 CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN);
1711 encode_string(xdr, len, impl_name);
1712 /* just send zeros for nii_date - the date is in nii_name */
1713 p = reserve_space(xdr, 12);
1714 p = xdr_encode_hyper(p, 0);
1715 *p = cpu_to_be32(0);
1717 *p = cpu_to_be32(0); /* implementation id array length=0 */
1720 static void encode_create_session(struct xdr_stream *xdr,
1721 struct nfs41_create_session_args *args,
1722 struct compound_hdr *hdr)
1725 char machine_name[NFS4_MAX_MACHINE_NAME_LEN];
1727 struct nfs_client *clp = args->client;
1728 u32 max_resp_sz_cached;
1731 * Assumes OPEN is the biggest non-idempotent compound.
1732 * 2 is the verifier.
1734 max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE +
1735 RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT;
1737 len = scnprintf(machine_name, sizeof(machine_name), "%s",
1740 encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr);
1741 p = reserve_space(xdr, 16 + 2*28 + 20 + len + 12);
1742 p = xdr_encode_hyper(p, clp->cl_clientid);
1743 *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */
1744 *p++ = cpu_to_be32(args->flags); /*flags */
1747 *p++ = cpu_to_be32(0); /* header padding size */
1748 *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */
1749 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */
1750 *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */
1751 *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */
1752 *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */
1753 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1756 *p++ = cpu_to_be32(0); /* header padding size */
1757 *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */
1758 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */
1759 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1760 *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */
1761 *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */
1762 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1764 *p++ = cpu_to_be32(args->cb_program); /* cb_program */
1765 *p++ = cpu_to_be32(1);
1766 *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */
1768 /* authsys_parms rfc1831 */
1769 *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */
1770 p = xdr_encode_opaque(p, machine_name, len);
1771 *p++ = cpu_to_be32(0); /* UID */
1772 *p++ = cpu_to_be32(0); /* GID */
1773 *p = cpu_to_be32(0); /* No more gids */
1776 static void encode_destroy_session(struct xdr_stream *xdr,
1777 struct nfs4_session *session,
1778 struct compound_hdr *hdr)
1780 encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr);
1781 encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1784 static void encode_reclaim_complete(struct xdr_stream *xdr,
1785 struct nfs41_reclaim_complete_args *args,
1786 struct compound_hdr *hdr)
1788 encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr);
1789 encode_uint32(xdr, args->one_fs);
1791 #endif /* CONFIG_NFS_V4_1 */
1793 static void encode_sequence(struct xdr_stream *xdr,
1794 const struct nfs4_sequence_args *args,
1795 struct compound_hdr *hdr)
1797 #if defined(CONFIG_NFS_V4_1)
1798 struct nfs4_session *session = args->sa_session;
1799 struct nfs4_slot_table *tp;
1800 struct nfs4_slot *slot;
1806 tp = &session->fc_slot_table;
1808 WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE);
1809 slot = tp->slots + args->sa_slotid;
1811 encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr);
1814 * Sessionid + seqid + slotid + max slotid + cache_this
1816 dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
1817 "max_slotid=%d cache_this=%d\n",
1819 ((u32 *)session->sess_id.data)[0],
1820 ((u32 *)session->sess_id.data)[1],
1821 ((u32 *)session->sess_id.data)[2],
1822 ((u32 *)session->sess_id.data)[3],
1823 slot->seq_nr, args->sa_slotid,
1824 tp->highest_used_slotid, args->sa_cache_this);
1825 p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16);
1826 p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1827 *p++ = cpu_to_be32(slot->seq_nr);
1828 *p++ = cpu_to_be32(args->sa_slotid);
1829 *p++ = cpu_to_be32(tp->highest_used_slotid);
1830 *p = cpu_to_be32(args->sa_cache_this);
1831 #endif /* CONFIG_NFS_V4_1 */
1834 #ifdef CONFIG_NFS_V4_1
1836 encode_getdevicelist(struct xdr_stream *xdr,
1837 const struct nfs4_getdevicelist_args *args,
1838 struct compound_hdr *hdr)
1841 nfs4_verifier dummy = {
1845 encode_op_hdr(xdr, OP_GETDEVICELIST, decode_getdevicelist_maxsz, hdr);
1846 p = reserve_space(xdr, 16);
1847 *p++ = cpu_to_be32(args->layoutclass);
1848 *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM);
1849 xdr_encode_hyper(p, 0ULL); /* cookie */
1850 encode_nfs4_verifier(xdr, &dummy);
1854 encode_getdeviceinfo(struct xdr_stream *xdr,
1855 const struct nfs4_getdeviceinfo_args *args,
1856 struct compound_hdr *hdr)
1860 encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr);
1861 p = reserve_space(xdr, 12 + NFS4_DEVICEID4_SIZE);
1862 p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data,
1863 NFS4_DEVICEID4_SIZE);
1864 *p++ = cpu_to_be32(args->pdev->layout_type);
1865 *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */
1866 *p++ = cpu_to_be32(0); /* bitmap length 0 */
1870 encode_layoutget(struct xdr_stream *xdr,
1871 const struct nfs4_layoutget_args *args,
1872 struct compound_hdr *hdr)
1876 encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr);
1877 p = reserve_space(xdr, 36);
1878 *p++ = cpu_to_be32(0); /* Signal layout available */
1879 *p++ = cpu_to_be32(args->type);
1880 *p++ = cpu_to_be32(args->range.iomode);
1881 p = xdr_encode_hyper(p, args->range.offset);
1882 p = xdr_encode_hyper(p, args->range.length);
1883 p = xdr_encode_hyper(p, args->minlength);
1884 encode_nfs4_stateid(xdr, &args->stateid);
1885 encode_uint32(xdr, args->maxcount);
1887 dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n",
1891 (unsigned long)args->range.offset,
1892 (unsigned long)args->range.length,
1897 encode_layoutcommit(struct xdr_stream *xdr,
1898 struct inode *inode,
1899 const struct nfs4_layoutcommit_args *args,
1900 struct compound_hdr *hdr)
1904 dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten,
1905 NFS_SERVER(args->inode)->pnfs_curr_ld->id);
1907 encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr);
1908 p = reserve_space(xdr, 20);
1909 /* Only whole file layouts */
1910 p = xdr_encode_hyper(p, 0); /* offset */
1911 p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */
1912 *p = cpu_to_be32(0); /* reclaim */
1913 encode_nfs4_stateid(xdr, &args->stateid);
1914 p = reserve_space(xdr, 20);
1915 *p++ = cpu_to_be32(1); /* newoffset = TRUE */
1916 p = xdr_encode_hyper(p, args->lastbytewritten);
1917 *p++ = cpu_to_be32(0); /* Never send time_modify_changed */
1918 *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */
1920 if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit)
1921 NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit(
1922 NFS_I(inode)->layout, xdr, args);
1924 encode_uint32(xdr, 0); /* no layout-type payload */
1930 encode_layoutreturn(struct xdr_stream *xdr,
1931 const struct nfs4_layoutreturn_args *args,
1932 struct compound_hdr *hdr)
1936 encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr);
1937 p = reserve_space(xdr, 16);
1938 *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */
1939 *p++ = cpu_to_be32(args->layout_type);
1940 *p++ = cpu_to_be32(IOMODE_ANY);
1941 *p = cpu_to_be32(RETURN_FILE);
1942 p = reserve_space(xdr, 16);
1943 p = xdr_encode_hyper(p, 0);
1944 p = xdr_encode_hyper(p, NFS4_MAX_UINT64);
1945 spin_lock(&args->inode->i_lock);
1946 encode_nfs4_stateid(xdr, &args->stateid);
1947 spin_unlock(&args->inode->i_lock);
1948 if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) {
1949 NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn(
1950 NFS_I(args->inode)->layout, xdr, args);
1952 encode_uint32(xdr, 0);
1956 encode_secinfo_no_name(struct xdr_stream *xdr,
1957 const struct nfs41_secinfo_no_name_args *args,
1958 struct compound_hdr *hdr)
1960 encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr);
1961 encode_uint32(xdr, args->style);
1965 static void encode_test_stateid(struct xdr_stream *xdr,
1966 struct nfs41_test_stateid_args *args,
1967 struct compound_hdr *hdr)
1969 encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr);
1970 encode_uint32(xdr, 1);
1971 encode_nfs4_stateid(xdr, args->stateid);
1974 static void encode_free_stateid(struct xdr_stream *xdr,
1975 struct nfs41_free_stateid_args *args,
1976 struct compound_hdr *hdr)
1978 encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr);
1979 encode_nfs4_stateid(xdr, args->stateid);
1981 #endif /* CONFIG_NFS_V4_1 */
1984 * END OF "GENERIC" ENCODE ROUTINES.
1987 static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
1989 #if defined(CONFIG_NFS_V4_1)
1990 if (args->sa_session)
1991 return args->sa_session->clp->cl_mvops->minor_version;
1992 #endif /* CONFIG_NFS_V4_1 */
1997 * Encode an ACCESS request
1999 static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr,
2000 const struct nfs4_accessargs *args)
2002 struct compound_hdr hdr = {
2003 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2006 encode_compound_hdr(xdr, req, &hdr);
2007 encode_sequence(xdr, &args->seq_args, &hdr);
2008 encode_putfh(xdr, args->fh, &hdr);
2009 encode_access(xdr, args->access, &hdr);
2010 encode_getfattr(xdr, args->bitmask, &hdr);
2015 * Encode LOOKUP request
2017 static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr,
2018 const struct nfs4_lookup_arg *args)
2020 struct compound_hdr hdr = {
2021 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2024 encode_compound_hdr(xdr, req, &hdr);
2025 encode_sequence(xdr, &args->seq_args, &hdr);
2026 encode_putfh(xdr, args->dir_fh, &hdr);
2027 encode_lookup(xdr, args->name, &hdr);
2028 encode_getfh(xdr, &hdr);
2029 encode_getfattr(xdr, args->bitmask, &hdr);
2034 * Encode LOOKUP_ROOT request
2036 static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req,
2037 struct xdr_stream *xdr,
2038 const struct nfs4_lookup_root_arg *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_putrootfh(xdr, &hdr);
2047 encode_getfh(xdr, &hdr);
2048 encode_getfattr(xdr, args->bitmask, &hdr);
2053 * Encode REMOVE request
2055 static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr,
2056 const struct nfs_removeargs *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->fh, &hdr);
2065 encode_remove(xdr, &args->name, &hdr);
2066 encode_getfattr(xdr, args->bitmask, &hdr);
2071 * Encode RENAME request
2073 static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr,
2074 const struct nfs_renameargs *args)
2076 struct compound_hdr hdr = {
2077 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2080 encode_compound_hdr(xdr, req, &hdr);
2081 encode_sequence(xdr, &args->seq_args, &hdr);
2082 encode_putfh(xdr, args->old_dir, &hdr);
2083 encode_savefh(xdr, &hdr);
2084 encode_putfh(xdr, args->new_dir, &hdr);
2085 encode_rename(xdr, args->old_name, args->new_name, &hdr);
2086 encode_getfattr(xdr, args->bitmask, &hdr);
2087 encode_restorefh(xdr, &hdr);
2088 encode_getfattr(xdr, args->bitmask, &hdr);
2093 * Encode LINK request
2095 static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr,
2096 const struct nfs4_link_arg *args)
2098 struct compound_hdr hdr = {
2099 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2102 encode_compound_hdr(xdr, req, &hdr);
2103 encode_sequence(xdr, &args->seq_args, &hdr);
2104 encode_putfh(xdr, args->fh, &hdr);
2105 encode_savefh(xdr, &hdr);
2106 encode_putfh(xdr, args->dir_fh, &hdr);
2107 encode_link(xdr, args->name, &hdr);
2108 encode_getfattr(xdr, args->bitmask, &hdr);
2109 encode_restorefh(xdr, &hdr);
2110 encode_getfattr(xdr, args->bitmask, &hdr);
2115 * Encode CREATE request
2117 static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr,
2118 const struct nfs4_create_arg *args)
2120 struct compound_hdr hdr = {
2121 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2124 encode_compound_hdr(xdr, req, &hdr);
2125 encode_sequence(xdr, &args->seq_args, &hdr);
2126 encode_putfh(xdr, args->dir_fh, &hdr);
2127 encode_savefh(xdr, &hdr);
2128 encode_create(xdr, args, &hdr);
2129 encode_getfh(xdr, &hdr);
2130 encode_getfattr(xdr, args->bitmask, &hdr);
2131 encode_restorefh(xdr, &hdr);
2132 encode_getfattr(xdr, args->bitmask, &hdr);
2137 * Encode SYMLINK request
2139 static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr,
2140 const struct nfs4_create_arg *args)
2142 nfs4_xdr_enc_create(req, xdr, args);
2146 * Encode GETATTR request
2148 static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr,
2149 const struct nfs4_getattr_arg *args)
2151 struct compound_hdr hdr = {
2152 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2155 encode_compound_hdr(xdr, req, &hdr);
2156 encode_sequence(xdr, &args->seq_args, &hdr);
2157 encode_putfh(xdr, args->fh, &hdr);
2158 encode_getfattr(xdr, args->bitmask, &hdr);
2163 * Encode a CLOSE request
2165 static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
2166 struct nfs_closeargs *args)
2168 struct compound_hdr hdr = {
2169 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2172 encode_compound_hdr(xdr, req, &hdr);
2173 encode_sequence(xdr, &args->seq_args, &hdr);
2174 encode_putfh(xdr, args->fh, &hdr);
2175 encode_close(xdr, args, &hdr);
2176 encode_getfattr(xdr, args->bitmask, &hdr);
2181 * Encode an OPEN request
2183 static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
2184 struct nfs_openargs *args)
2186 struct compound_hdr hdr = {
2187 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2190 encode_compound_hdr(xdr, req, &hdr);
2191 encode_sequence(xdr, &args->seq_args, &hdr);
2192 encode_putfh(xdr, args->fh, &hdr);
2193 encode_savefh(xdr, &hdr);
2194 encode_open(xdr, args, &hdr);
2195 encode_getfh(xdr, &hdr);
2196 encode_getfattr(xdr, args->bitmask, &hdr);
2197 encode_restorefh(xdr, &hdr);
2198 encode_getfattr(xdr, args->dir_bitmask, &hdr);
2203 * Encode an OPEN_CONFIRM request
2205 static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req,
2206 struct xdr_stream *xdr,
2207 struct nfs_open_confirmargs *args)
2209 struct compound_hdr hdr = {
2213 encode_compound_hdr(xdr, req, &hdr);
2214 encode_putfh(xdr, args->fh, &hdr);
2215 encode_open_confirm(xdr, args, &hdr);
2220 * Encode an OPEN request with no attributes.
2222 static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req,
2223 struct xdr_stream *xdr,
2224 struct nfs_openargs *args)
2226 struct compound_hdr hdr = {
2227 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2230 encode_compound_hdr(xdr, req, &hdr);
2231 encode_sequence(xdr, &args->seq_args, &hdr);
2232 encode_putfh(xdr, args->fh, &hdr);
2233 encode_open(xdr, args, &hdr);
2234 encode_getfattr(xdr, args->bitmask, &hdr);
2239 * Encode an OPEN_DOWNGRADE request
2241 static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req,
2242 struct xdr_stream *xdr,
2243 struct nfs_closeargs *args)
2245 struct compound_hdr hdr = {
2246 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2249 encode_compound_hdr(xdr, req, &hdr);
2250 encode_sequence(xdr, &args->seq_args, &hdr);
2251 encode_putfh(xdr, args->fh, &hdr);
2252 encode_open_downgrade(xdr, args, &hdr);
2253 encode_getfattr(xdr, args->bitmask, &hdr);
2258 * Encode a LOCK request
2260 static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr,
2261 struct nfs_lock_args *args)
2263 struct compound_hdr hdr = {
2264 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2267 encode_compound_hdr(xdr, req, &hdr);
2268 encode_sequence(xdr, &args->seq_args, &hdr);
2269 encode_putfh(xdr, args->fh, &hdr);
2270 encode_lock(xdr, args, &hdr);
2275 * Encode a LOCKT request
2277 static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr,
2278 struct nfs_lockt_args *args)
2280 struct compound_hdr hdr = {
2281 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2284 encode_compound_hdr(xdr, req, &hdr);
2285 encode_sequence(xdr, &args->seq_args, &hdr);
2286 encode_putfh(xdr, args->fh, &hdr);
2287 encode_lockt(xdr, args, &hdr);
2292 * Encode a LOCKU request
2294 static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr,
2295 struct nfs_locku_args *args)
2297 struct compound_hdr hdr = {
2298 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2301 encode_compound_hdr(xdr, req, &hdr);
2302 encode_sequence(xdr, &args->seq_args, &hdr);
2303 encode_putfh(xdr, args->fh, &hdr);
2304 encode_locku(xdr, args, &hdr);
2308 static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req,
2309 struct xdr_stream *xdr,
2310 struct nfs_release_lockowner_args *args)
2312 struct compound_hdr hdr = {
2316 encode_compound_hdr(xdr, req, &hdr);
2317 encode_release_lockowner(xdr, &args->lock_owner, &hdr);
2322 * Encode a READLINK request
2324 static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr,
2325 const struct nfs4_readlink *args)
2327 struct compound_hdr hdr = {
2328 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2331 encode_compound_hdr(xdr, req, &hdr);
2332 encode_sequence(xdr, &args->seq_args, &hdr);
2333 encode_putfh(xdr, args->fh, &hdr);
2334 encode_readlink(xdr, args, req, &hdr);
2336 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
2337 args->pgbase, args->pglen);
2342 * Encode a READDIR request
2344 static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr,
2345 const struct nfs4_readdir_arg *args)
2347 struct compound_hdr hdr = {
2348 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2351 encode_compound_hdr(xdr, req, &hdr);
2352 encode_sequence(xdr, &args->seq_args, &hdr);
2353 encode_putfh(xdr, args->fh, &hdr);
2354 encode_readdir(xdr, args, req, &hdr);
2356 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
2357 args->pgbase, args->count);
2358 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
2359 __func__, hdr.replen << 2, args->pages,
2360 args->pgbase, args->count);
2365 * Encode a READ request
2367 static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr,
2368 struct nfs_readargs *args)
2370 struct compound_hdr hdr = {
2371 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2374 encode_compound_hdr(xdr, req, &hdr);
2375 encode_sequence(xdr, &args->seq_args, &hdr);
2376 encode_putfh(xdr, args->fh, &hdr);
2377 encode_read(xdr, args, &hdr);
2379 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
2380 args->pages, args->pgbase, args->count);
2381 req->rq_rcv_buf.flags |= XDRBUF_READ;
2386 * Encode an SETATTR request
2388 static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr,
2389 struct nfs_setattrargs *args)
2391 struct compound_hdr hdr = {
2392 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2395 encode_compound_hdr(xdr, req, &hdr);
2396 encode_sequence(xdr, &args->seq_args, &hdr);
2397 encode_putfh(xdr, args->fh, &hdr);
2398 encode_setattr(xdr, args, args->server, &hdr);
2399 encode_getfattr(xdr, args->bitmask, &hdr);
2404 * Encode a GETACL request
2406 static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
2407 struct nfs_getaclargs *args)
2409 struct compound_hdr hdr = {
2410 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2414 encode_compound_hdr(xdr, req, &hdr);
2415 encode_sequence(xdr, &args->seq_args, &hdr);
2416 encode_putfh(xdr, args->fh, &hdr);
2417 replen = hdr.replen + op_decode_hdr_maxsz + 1;
2418 encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr);
2420 xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
2421 args->acl_pages, args->acl_pgbase, args->acl_len);
2427 * Encode a WRITE request
2429 static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr,
2430 struct nfs_writeargs *args)
2432 struct compound_hdr hdr = {
2433 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2436 encode_compound_hdr(xdr, req, &hdr);
2437 encode_sequence(xdr, &args->seq_args, &hdr);
2438 encode_putfh(xdr, args->fh, &hdr);
2439 encode_write(xdr, args, &hdr);
2440 req->rq_snd_buf.flags |= XDRBUF_WRITE;
2442 encode_getfattr(xdr, args->bitmask, &hdr);
2449 static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
2450 struct nfs_writeargs *args)
2452 struct compound_hdr hdr = {
2453 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2456 encode_compound_hdr(xdr, req, &hdr);
2457 encode_sequence(xdr, &args->seq_args, &hdr);
2458 encode_putfh(xdr, args->fh, &hdr);
2459 encode_commit(xdr, args, &hdr);
2461 encode_getfattr(xdr, args->bitmask, &hdr);
2468 static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
2469 struct nfs4_fsinfo_arg *args)
2471 struct compound_hdr hdr = {
2472 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2475 encode_compound_hdr(xdr, req, &hdr);
2476 encode_sequence(xdr, &args->seq_args, &hdr);
2477 encode_putfh(xdr, args->fh, &hdr);
2478 encode_fsinfo(xdr, args->bitmask, &hdr);
2483 * a PATHCONF request
2485 static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
2486 const struct nfs4_pathconf_arg *args)
2488 struct compound_hdr hdr = {
2489 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2492 encode_compound_hdr(xdr, req, &hdr);
2493 encode_sequence(xdr, &args->seq_args, &hdr);
2494 encode_putfh(xdr, args->fh, &hdr);
2495 encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0],
2503 static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
2504 const struct nfs4_statfs_arg *args)
2506 struct compound_hdr hdr = {
2507 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2510 encode_compound_hdr(xdr, req, &hdr);
2511 encode_sequence(xdr, &args->seq_args, &hdr);
2512 encode_putfh(xdr, args->fh, &hdr);
2513 encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0],
2514 args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr);
2519 * GETATTR_BITMAP request
2521 static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
2522 struct xdr_stream *xdr,
2523 struct nfs4_server_caps_arg *args)
2525 struct compound_hdr hdr = {
2526 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2529 encode_compound_hdr(xdr, req, &hdr);
2530 encode_sequence(xdr, &args->seq_args, &hdr);
2531 encode_putfh(xdr, args->fhandle, &hdr);
2532 encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
2533 FATTR4_WORD0_FH_EXPIRE_TYPE|
2534 FATTR4_WORD0_LINK_SUPPORT|
2535 FATTR4_WORD0_SYMLINK_SUPPORT|
2536 FATTR4_WORD0_ACLSUPPORT, &hdr);
2543 static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
2544 struct nfs_client *clp)
2546 struct compound_hdr hdr = {
2550 encode_compound_hdr(xdr, req, &hdr);
2551 encode_renew(xdr, clp->cl_clientid, &hdr);
2556 * a SETCLIENTID request
2558 static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req,
2559 struct xdr_stream *xdr,
2560 struct nfs4_setclientid *sc)
2562 struct compound_hdr hdr = {
2566 encode_compound_hdr(xdr, req, &hdr);
2567 encode_setclientid(xdr, sc, &hdr);
2572 * a SETCLIENTID_CONFIRM request
2574 static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req,
2575 struct xdr_stream *xdr,
2576 struct nfs4_setclientid_res *arg)
2578 struct compound_hdr hdr = {
2581 const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME };
2583 encode_compound_hdr(xdr, req, &hdr);
2584 encode_setclientid_confirm(xdr, arg, &hdr);
2585 encode_putrootfh(xdr, &hdr);
2586 encode_fsinfo(xdr, lease_bitmap, &hdr);
2591 * DELEGRETURN request
2593 static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
2594 struct xdr_stream *xdr,
2595 const struct nfs4_delegreturnargs *args)
2597 struct compound_hdr hdr = {
2598 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2601 encode_compound_hdr(xdr, req, &hdr);
2602 encode_sequence(xdr, &args->seq_args, &hdr);
2603 encode_putfh(xdr, args->fhandle, &hdr);
2604 encode_delegreturn(xdr, args->stateid, &hdr);
2605 encode_getfattr(xdr, args->bitmask, &hdr);
2610 * Encode FS_LOCATIONS request
2612 static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
2613 struct xdr_stream *xdr,
2614 struct nfs4_fs_locations_arg *args)
2616 struct compound_hdr hdr = {
2617 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2621 encode_compound_hdr(xdr, req, &hdr);
2622 encode_sequence(xdr, &args->seq_args, &hdr);
2623 encode_putfh(xdr, args->dir_fh, &hdr);
2624 encode_lookup(xdr, args->name, &hdr);
2625 replen = hdr.replen; /* get the attribute into args->page */
2626 encode_fs_locations(xdr, args->bitmask, &hdr);
2628 xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
2634 * Encode SECINFO request
2636 static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
2637 struct xdr_stream *xdr,
2638 struct nfs4_secinfo_arg *args)
2640 struct compound_hdr hdr = {
2641 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2644 encode_compound_hdr(xdr, req, &hdr);
2645 encode_sequence(xdr, &args->seq_args, &hdr);
2646 encode_putfh(xdr, args->dir_fh, &hdr);
2647 encode_secinfo(xdr, args->name, &hdr);
2651 #if defined(CONFIG_NFS_V4_1)
2653 * EXCHANGE_ID request
2655 static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req,
2656 struct xdr_stream *xdr,
2657 struct nfs41_exchange_id_args *args)
2659 struct compound_hdr hdr = {
2660 .minorversion = args->client->cl_mvops->minor_version,
2663 encode_compound_hdr(xdr, req, &hdr);
2664 encode_exchange_id(xdr, args, &hdr);
2669 * a CREATE_SESSION request
2671 static void nfs4_xdr_enc_create_session(struct rpc_rqst *req,
2672 struct xdr_stream *xdr,
2673 struct nfs41_create_session_args *args)
2675 struct compound_hdr hdr = {
2676 .minorversion = args->client->cl_mvops->minor_version,
2679 encode_compound_hdr(xdr, req, &hdr);
2680 encode_create_session(xdr, args, &hdr);
2685 * a DESTROY_SESSION request
2687 static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req,
2688 struct xdr_stream *xdr,
2689 struct nfs4_session *session)
2691 struct compound_hdr hdr = {
2692 .minorversion = session->clp->cl_mvops->minor_version,
2695 encode_compound_hdr(xdr, req, &hdr);
2696 encode_destroy_session(xdr, session, &hdr);
2701 * a SEQUENCE request
2703 static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr,
2704 struct nfs4_sequence_args *args)
2706 struct compound_hdr hdr = {
2707 .minorversion = nfs4_xdr_minorversion(args),
2710 encode_compound_hdr(xdr, req, &hdr);
2711 encode_sequence(xdr, args, &hdr);
2716 * a GET_LEASE_TIME request
2718 static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req,
2719 struct xdr_stream *xdr,
2720 struct nfs4_get_lease_time_args *args)
2722 struct compound_hdr hdr = {
2723 .minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
2725 const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME };
2727 encode_compound_hdr(xdr, req, &hdr);
2728 encode_sequence(xdr, &args->la_seq_args, &hdr);
2729 encode_putrootfh(xdr, &hdr);
2730 encode_fsinfo(xdr, lease_bitmap, &hdr);
2735 * a RECLAIM_COMPLETE request
2737 static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req,
2738 struct xdr_stream *xdr,
2739 struct nfs41_reclaim_complete_args *args)
2741 struct compound_hdr hdr = {
2742 .minorversion = nfs4_xdr_minorversion(&args->seq_args)
2745 encode_compound_hdr(xdr, req, &hdr);
2746 encode_sequence(xdr, &args->seq_args, &hdr);
2747 encode_reclaim_complete(xdr, args, &hdr);
2752 * Encode GETDEVICELIST request
2754 static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req,
2755 struct xdr_stream *xdr,
2756 struct nfs4_getdevicelist_args *args)
2758 struct compound_hdr hdr = {
2759 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2762 encode_compound_hdr(xdr, req, &hdr);
2763 encode_sequence(xdr, &args->seq_args, &hdr);
2764 encode_putfh(xdr, args->fh, &hdr);
2765 encode_getdevicelist(xdr, args, &hdr);
2770 * Encode GETDEVICEINFO request
2772 static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req,
2773 struct xdr_stream *xdr,
2774 struct nfs4_getdeviceinfo_args *args)
2776 struct compound_hdr hdr = {
2777 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2780 encode_compound_hdr(xdr, req, &hdr);
2781 encode_sequence(xdr, &args->seq_args, &hdr);
2782 encode_getdeviceinfo(xdr, args, &hdr);
2784 /* set up reply kvec. Subtract notification bitmap max size (2)
2785 * so that notification bitmap is put in xdr_buf tail */
2786 xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2,
2787 args->pdev->pages, args->pdev->pgbase,
2794 * Encode LAYOUTGET request
2796 static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
2797 struct xdr_stream *xdr,
2798 struct nfs4_layoutget_args *args)
2800 struct compound_hdr hdr = {
2801 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2804 encode_compound_hdr(xdr, req, &hdr);
2805 encode_sequence(xdr, &args->seq_args, &hdr);
2806 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2807 encode_layoutget(xdr, args, &hdr);
2809 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
2810 args->layout.pages, 0, args->layout.pglen);
2816 * Encode LAYOUTCOMMIT request
2818 static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req,
2819 struct xdr_stream *xdr,
2820 struct nfs4_layoutcommit_args *args)
2822 struct nfs4_layoutcommit_data *data =
2823 container_of(args, struct nfs4_layoutcommit_data, args);
2824 struct compound_hdr hdr = {
2825 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2828 encode_compound_hdr(xdr, req, &hdr);
2829 encode_sequence(xdr, &args->seq_args, &hdr);
2830 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2831 encode_layoutcommit(xdr, data->args.inode, args, &hdr);
2832 encode_getfattr(xdr, args->bitmask, &hdr);
2837 * Encode LAYOUTRETURN request
2839 static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req,
2840 struct xdr_stream *xdr,
2841 struct nfs4_layoutreturn_args *args)
2843 struct compound_hdr hdr = {
2844 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2847 encode_compound_hdr(xdr, req, &hdr);
2848 encode_sequence(xdr, &args->seq_args, &hdr);
2849 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2850 encode_layoutreturn(xdr, args, &hdr);
2855 * Encode SECINFO_NO_NAME request
2857 static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
2858 struct xdr_stream *xdr,
2859 struct nfs41_secinfo_no_name_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_putrootfh(xdr, &hdr);
2868 encode_secinfo_no_name(xdr, args, &hdr);
2874 * Encode TEST_STATEID request
2876 static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req,
2877 struct xdr_stream *xdr,
2878 struct nfs41_test_stateid_args *args)
2880 struct compound_hdr hdr = {
2881 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2884 encode_compound_hdr(xdr, req, &hdr);
2885 encode_sequence(xdr, &args->seq_args, &hdr);
2886 encode_test_stateid(xdr, args, &hdr);
2891 * Encode FREE_STATEID request
2893 static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req,
2894 struct xdr_stream *xdr,
2895 struct nfs41_free_stateid_args *args)
2897 struct compound_hdr hdr = {
2898 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2901 encode_compound_hdr(xdr, req, &hdr);
2902 encode_sequence(xdr, &args->seq_args, &hdr);
2903 encode_free_stateid(xdr, args, &hdr);
2906 #endif /* CONFIG_NFS_V4_1 */
2908 static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
2910 dprintk("nfs: %s: prematurely hit end of receive buffer. "
2911 "Remaining buffer length is %tu words.\n",
2912 func, xdr->end - xdr->p);
2915 static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
2919 p = xdr_inline_decode(xdr, 4);
2922 *len = be32_to_cpup(p);
2923 p = xdr_inline_decode(xdr, *len);
2926 *string = (char *)p;
2929 print_overflow_msg(__func__, xdr);
2933 static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
2937 p = xdr_inline_decode(xdr, 8);
2940 hdr->status = be32_to_cpup(p++);
2941 hdr->taglen = be32_to_cpup(p);
2943 p = xdr_inline_decode(xdr, hdr->taglen + 4);
2946 hdr->tag = (char *)p;
2947 p += XDR_QUADLEN(hdr->taglen);
2948 hdr->nops = be32_to_cpup(p);
2949 if (unlikely(hdr->nops < 1))
2950 return nfs4_stat_to_errno(hdr->status);
2953 print_overflow_msg(__func__, xdr);
2957 static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
2963 p = xdr_inline_decode(xdr, 8);
2966 opnum = be32_to_cpup(p++);
2967 if (opnum != expected) {
2968 dprintk("nfs: Server returned operation"
2969 " %d but we issued a request for %d\n",
2973 nfserr = be32_to_cpup(p);
2974 if (nfserr != NFS_OK)
2975 return nfs4_stat_to_errno(nfserr);
2978 print_overflow_msg(__func__, xdr);
2983 static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp)
2986 unsigned int strlen;
2989 p = xdr_inline_decode(xdr, 12);
2991 return decode_opaque_inline(xdr, &strlen, &str);
2992 print_overflow_msg(__func__, xdr);
2996 static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
3001 p = xdr_inline_decode(xdr, 4);
3004 bmlen = be32_to_cpup(p);
3006 bitmap[0] = bitmap[1] = bitmap[2] = 0;
3007 p = xdr_inline_decode(xdr, (bmlen << 2));
3011 bitmap[0] = be32_to_cpup(p++);
3013 bitmap[1] = be32_to_cpup(p++);
3015 bitmap[2] = be32_to_cpup(p);
3020 print_overflow_msg(__func__, xdr);
3024 static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep)
3028 p = xdr_inline_decode(xdr, 4);
3031 *attrlen = be32_to_cpup(p);
3035 print_overflow_msg(__func__, xdr);
3039 static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
3041 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
3043 ret = decode_attr_bitmap(xdr, bitmask);
3044 if (unlikely(ret < 0))
3046 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
3048 bitmask[0] = bitmask[1] = bitmask[2] = 0;
3049 dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__,
3050 bitmask[0], bitmask[1], bitmask[2]);
3054 static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
3060 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
3062 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
3063 p = xdr_inline_decode(xdr, 4);
3066 *type = be32_to_cpup(p);
3067 if (*type < NF4REG || *type > NF4NAMEDATTR) {
3068 dprintk("%s: bad type %d\n", __func__, *type);
3071 bitmap[0] &= ~FATTR4_WORD0_TYPE;
3072 ret = NFS_ATTR_FATTR_TYPE;
3074 dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]);
3077 print_overflow_msg(__func__, xdr);
3081 static int decode_attr_fh_expire_type(struct xdr_stream *xdr,
3082 uint32_t *bitmap, uint32_t *type)
3087 if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U)))
3089 if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) {
3090 p = xdr_inline_decode(xdr, 4);
3093 *type = be32_to_cpup(p);
3094 bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE;
3096 dprintk("%s: expire type=0x%x\n", __func__, *type);
3099 print_overflow_msg(__func__, xdr);
3103 static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
3109 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
3111 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
3112 p = xdr_inline_decode(xdr, 8);
3115 xdr_decode_hyper(p, change);
3116 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
3117 ret = NFS_ATTR_FATTR_CHANGE;
3119 dprintk("%s: change attribute=%Lu\n", __func__,
3120 (unsigned long long)*change);
3123 print_overflow_msg(__func__, xdr);
3127 static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
3133 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
3135 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
3136 p = xdr_inline_decode(xdr, 8);
3139 xdr_decode_hyper(p, size);
3140 bitmap[0] &= ~FATTR4_WORD0_SIZE;
3141 ret = NFS_ATTR_FATTR_SIZE;
3143 dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size);
3146 print_overflow_msg(__func__, xdr);
3150 static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3155 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
3157 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
3158 p = xdr_inline_decode(xdr, 4);
3161 *res = be32_to_cpup(p);
3162 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
3164 dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true");
3167 print_overflow_msg(__func__, xdr);
3171 static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3176 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
3178 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
3179 p = xdr_inline_decode(xdr, 4);
3182 *res = be32_to_cpup(p);
3183 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
3185 dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true");
3188 print_overflow_msg(__func__, xdr);
3192 static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid)
3199 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
3201 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
3202 p = xdr_inline_decode(xdr, 16);
3205 p = xdr_decode_hyper(p, &fsid->major);
3206 xdr_decode_hyper(p, &fsid->minor);
3207 bitmap[0] &= ~FATTR4_WORD0_FSID;
3208 ret = NFS_ATTR_FATTR_FSID;
3210 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__,
3211 (unsigned long long)fsid->major,
3212 (unsigned long long)fsid->minor);
3215 print_overflow_msg(__func__, xdr);
3219 static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3224 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
3226 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
3227 p = xdr_inline_decode(xdr, 4);
3230 *res = be32_to_cpup(p);
3231 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
3233 dprintk("%s: file size=%u\n", __func__, (unsigned int)*res);
3236 print_overflow_msg(__func__, xdr);
3240 static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res)
3244 if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U)))
3246 if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) {
3247 p = xdr_inline_decode(xdr, 4);
3250 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
3251 *res = -be32_to_cpup(p);
3255 print_overflow_msg(__func__, xdr);
3259 static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh)
3265 memset(fh, 0, sizeof(*fh));
3267 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U)))
3269 if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) {
3270 p = xdr_inline_decode(xdr, 4);
3273 len = be32_to_cpup(p);
3274 if (len > NFS4_FHSIZE)
3276 p = xdr_inline_decode(xdr, len);
3280 memcpy(fh->data, p, len);
3283 bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE;
3287 print_overflow_msg(__func__, xdr);
3291 static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3295 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
3296 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
3298 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
3299 p = xdr_inline_decode(xdr, 4);
3302 *res = be32_to_cpup(p);
3303 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
3305 dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res);
3308 print_overflow_msg(__func__, xdr);
3312 static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3318 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
3320 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
3321 p = xdr_inline_decode(xdr, 8);
3324 xdr_decode_hyper(p, fileid);
3325 bitmap[0] &= ~FATTR4_WORD0_FILEID;
3326 ret = NFS_ATTR_FATTR_FILEID;
3328 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
3331 print_overflow_msg(__func__, xdr);
3335 static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3341 if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U)))
3343 if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) {
3344 p = xdr_inline_decode(xdr, 8);
3347 xdr_decode_hyper(p, fileid);
3348 bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
3349 ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID;
3351 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
3354 print_overflow_msg(__func__, xdr);
3358 static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3364 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
3366 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
3367 p = xdr_inline_decode(xdr, 8);
3370 xdr_decode_hyper(p, res);
3371 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
3373 dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res);
3376 print_overflow_msg(__func__, xdr);
3380 static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3386 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
3388 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
3389 p = xdr_inline_decode(xdr, 8);
3392 xdr_decode_hyper(p, res);
3393 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
3395 dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res);
3398 print_overflow_msg(__func__, xdr);
3402 static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3408 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
3410 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
3411 p = xdr_inline_decode(xdr, 8);
3414 xdr_decode_hyper(p, res);
3415 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
3417 dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res);
3420 print_overflow_msg(__func__, xdr);
3424 static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
3430 p = xdr_inline_decode(xdr, 4);
3433 n = be32_to_cpup(p);
3436 dprintk("pathname4: ");
3437 path->ncomponents = 0;
3438 while (path->ncomponents < n) {
3439 struct nfs4_string *component = &path->components[path->ncomponents];
3440 status = decode_opaque_inline(xdr, &component->len, &component->data);
3441 if (unlikely(status != 0))
3445 (path->ncomponents != n ? "/ " : ""),
3446 component->len, component->data);
3447 if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS)
3448 path->ncomponents++;
3450 dprintk("cannot parse %d components in path\n", n);
3457 /* a root pathname is sent as a zero component4 */
3458 path->ncomponents = 1;
3459 path->components[0].len=0;
3460 path->components[0].data=NULL;
3461 dprintk("pathname4: /\n");
3464 dprintk(" status %d", status);
3468 print_overflow_msg(__func__, xdr);
3472 static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
3478 if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U)))
3481 if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS)))
3484 /* Ignore borken servers that return unrequested attrs */
3485 if (unlikely(res == NULL))
3487 dprintk("%s: fsroot:\n", __func__);
3488 status = decode_pathname(xdr, &res->fs_path);
3489 if (unlikely(status != 0))
3491 p = xdr_inline_decode(xdr, 4);
3494 n = be32_to_cpup(p);
3497 res->nlocations = 0;
3498 while (res->nlocations < n) {
3500 struct nfs4_fs_location *loc = &res->locations[res->nlocations];
3502 p = xdr_inline_decode(xdr, 4);
3505 m = be32_to_cpup(p);
3508 dprintk("%s: servers:\n", __func__);
3509 while (loc->nservers < m) {
3510 struct nfs4_string *server = &loc->servers[loc->nservers];
3511 status = decode_opaque_inline(xdr, &server->len, &server->data);
3512 if (unlikely(status != 0))
3514 dprintk("%s ", server->data);
3515 if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS)
3519 dprintk("%s: using first %u of %u servers "
3520 "returned for location %u\n",
3522 NFS4_FS_LOCATION_MAXSERVERS,
3523 m, res->nlocations);
3524 for (i = loc->nservers; i < m; i++) {
3527 status = decode_opaque_inline(xdr, &len, &data);
3528 if (unlikely(status != 0))
3533 status = decode_pathname(xdr, &loc->rootpath);
3534 if (unlikely(status != 0))
3536 if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES)
3539 if (res->nlocations != 0)
3540 status = NFS_ATTR_FATTR_V4_LOCATIONS;
3542 dprintk("%s: fs_locations done, error = %d\n", __func__, status);
3545 print_overflow_msg(__func__, xdr);
3551 static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3557 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
3559 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
3560 p = xdr_inline_decode(xdr, 8);
3563 xdr_decode_hyper(p, res);
3564 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
3566 dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res);
3569 print_overflow_msg(__func__, xdr);
3573 static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
3579 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
3581 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
3582 p = xdr_inline_decode(xdr, 4);
3585 *maxlink = be32_to_cpup(p);
3586 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
3588 dprintk("%s: maxlink=%u\n", __func__, *maxlink);
3591 print_overflow_msg(__func__, xdr);
3595 static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
3601 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
3603 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
3604 p = xdr_inline_decode(xdr, 4);
3607 *maxname = be32_to_cpup(p);
3608 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
3610 dprintk("%s: maxname=%u\n", __func__, *maxname);
3613 print_overflow_msg(__func__, xdr);
3617 static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3623 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
3625 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
3627 p = xdr_inline_decode(xdr, 8);
3630 xdr_decode_hyper(p, &maxread);
3631 if (maxread > 0x7FFFFFFF)
3632 maxread = 0x7FFFFFFF;
3633 *res = (uint32_t)maxread;
3634 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
3636 dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res);
3639 print_overflow_msg(__func__, xdr);
3643 static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3649 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
3651 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
3653 p = xdr_inline_decode(xdr, 8);
3656 xdr_decode_hyper(p, &maxwrite);
3657 if (maxwrite > 0x7FFFFFFF)
3658 maxwrite = 0x7FFFFFFF;
3659 *res = (uint32_t)maxwrite;
3660 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
3662 dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res);
3665 print_overflow_msg(__func__, xdr);
3669 static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode)
3676 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
3678 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
3679 p = xdr_inline_decode(xdr, 4);
3682 tmp = be32_to_cpup(p);
3683 *mode = tmp & ~S_IFMT;
3684 bitmap[1] &= ~FATTR4_WORD1_MODE;
3685 ret = NFS_ATTR_FATTR_MODE;
3687 dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode);
3690 print_overflow_msg(__func__, xdr);
3694 static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
3700 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
3702 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
3703 p = xdr_inline_decode(xdr, 4);
3706 *nlink = be32_to_cpup(p);
3707 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
3708 ret = NFS_ATTR_FATTR_NLINK;
3710 dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink);
3713 print_overflow_msg(__func__, xdr);
3717 static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
3718 const struct nfs_server *server, uint32_t *uid,
3719 struct nfs4_string *owner_name)
3726 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
3728 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
3729 p = xdr_inline_decode(xdr, 4);
3732 len = be32_to_cpup(p);
3733 p = xdr_inline_decode(xdr, len);
3736 if (owner_name != NULL) {
3737 owner_name->data = kmemdup(p, len, GFP_NOWAIT);
3738 if (owner_name->data != NULL) {
3739 owner_name->len = len;
3740 ret = NFS_ATTR_FATTR_OWNER_NAME;
3742 } else if (len < XDR_MAX_NETOBJ) {
3743 if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0)
3744 ret = NFS_ATTR_FATTR_OWNER;
3746 dprintk("%s: nfs_map_name_to_uid failed!\n",
3749 dprintk("%s: name too long (%u)!\n",
3751 bitmap[1] &= ~FATTR4_WORD1_OWNER;
3753 dprintk("%s: uid=%d\n", __func__, (int)*uid);
3756 print_overflow_msg(__func__, xdr);
3760 static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
3761 const struct nfs_server *server, uint32_t *gid,
3762 struct nfs4_string *group_name)
3769 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
3771 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
3772 p = xdr_inline_decode(xdr, 4);
3775 len = be32_to_cpup(p);
3776 p = xdr_inline_decode(xdr, len);
3779 if (group_name != NULL) {
3780 group_name->data = kmemdup(p, len, GFP_NOWAIT);
3781 if (group_name->data != NULL) {
3782 group_name->len = len;
3783 ret = NFS_ATTR_FATTR_GROUP_NAME;
3785 } else if (len < XDR_MAX_NETOBJ) {
3786 if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0)
3787 ret = NFS_ATTR_FATTR_GROUP;
3789 dprintk("%s: nfs_map_group_to_gid failed!\n",
3792 dprintk("%s: name too long (%u)!\n",
3794 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
3796 dprintk("%s: gid=%d\n", __func__, (int)*gid);
3799 print_overflow_msg(__func__, xdr);
3803 static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
3805 uint32_t major = 0, minor = 0;
3810 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
3812 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
3815 p = xdr_inline_decode(xdr, 8);
3818 major = be32_to_cpup(p++);
3819 minor = be32_to_cpup(p);
3820 tmp = MKDEV(major, minor);
3821 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
3823 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
3824 ret = NFS_ATTR_FATTR_RDEV;
3826 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor);
3829 print_overflow_msg(__func__, xdr);
3833 static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3839 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
3841 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
3842 p = xdr_inline_decode(xdr, 8);
3845 xdr_decode_hyper(p, res);
3846 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
3848 dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res);
3851 print_overflow_msg(__func__, xdr);
3855 static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3861 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
3863 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
3864 p = xdr_inline_decode(xdr, 8);
3867 xdr_decode_hyper(p, res);
3868 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
3870 dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res);
3873 print_overflow_msg(__func__, xdr);
3877 static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3883 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
3885 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
3886 p = xdr_inline_decode(xdr, 8);
3889 xdr_decode_hyper(p, res);
3890 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
3892 dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res);
3895 print_overflow_msg(__func__, xdr);
3899 static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
3905 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
3907 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
3908 p = xdr_inline_decode(xdr, 8);
3911 xdr_decode_hyper(p, used);
3912 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
3913 ret = NFS_ATTR_FATTR_SPACE_USED;
3915 dprintk("%s: space used=%Lu\n", __func__,
3916 (unsigned long long)*used);
3919 print_overflow_msg(__func__, xdr);
3923 static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
3929 p = xdr_inline_decode(xdr, 12);
3932 p = xdr_decode_hyper(p, &sec);
3933 nsec = be32_to_cpup(p);
3934 time->tv_sec = (time_t)sec;
3935 time->tv_nsec = (long)nsec;
3938 print_overflow_msg(__func__, xdr);
3942 static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
3948 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
3950 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
3951 status = decode_attr_time(xdr, time);
3953 status = NFS_ATTR_FATTR_ATIME;
3954 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
3956 dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec);
3960 static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
3966 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
3968 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
3969 status = decode_attr_time(xdr, time);
3971 status = NFS_ATTR_FATTR_CTIME;
3972 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
3974 dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec);
3978 static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap,
3979 struct timespec *time)
3985 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U)))
3987 if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) {
3988 status = decode_attr_time(xdr, time);
3989 bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA;
3991 dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec,
3992 (long)time->tv_nsec);
3996 static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4002 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
4004 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
4005 status = decode_attr_time(xdr, time);
4007 status = NFS_ATTR_FATTR_MTIME;
4008 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
4010 dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec);
4014 static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen)
4016 unsigned int attrwords = XDR_QUADLEN(attrlen);
4017 unsigned int nwords = xdr->p - savep;
4019 if (unlikely(attrwords != nwords)) {
4020 dprintk("%s: server returned incorrect attribute length: "
4024 (attrwords < nwords) ? '<' : '>',
4031 static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4035 p = xdr_inline_decode(xdr, 20);
4038 cinfo->atomic = be32_to_cpup(p++);
4039 p = xdr_decode_hyper(p, &cinfo->before);
4040 xdr_decode_hyper(p, &cinfo->after);
4043 print_overflow_msg(__func__, xdr);
4047 static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
4053 status = decode_op_hdr(xdr, OP_ACCESS);
4056 p = xdr_inline_decode(xdr, 8);
4059 supp = be32_to_cpup(p++);
4060 acc = be32_to_cpup(p);
4061 access->supported = supp;
4062 access->access = acc;
4065 print_overflow_msg(__func__, xdr);
4069 static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len)
4073 p = xdr_inline_decode(xdr, len);
4075 memcpy(buf, p, len);
4078 print_overflow_msg(__func__, xdr);
4082 static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
4084 return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE);
4087 static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
4091 status = decode_op_hdr(xdr, OP_CLOSE);
4093 nfs_increment_open_seqid(status, res->seqid);
4095 status = decode_stateid(xdr, &res->stateid);
4099 static int decode_verifier(struct xdr_stream *xdr, void *verifier)
4101 return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE);
4104 static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
4108 status = decode_op_hdr(xdr, OP_COMMIT);
4110 status = decode_verifier(xdr, res->verf->verifier);
4114 static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4120 status = decode_op_hdr(xdr, OP_CREATE);
4123 if ((status = decode_change_info(xdr, cinfo)))
4125 p = xdr_inline_decode(xdr, 4);
4128 bmlen = be32_to_cpup(p);
4129 p = xdr_inline_decode(xdr, bmlen << 2);
4133 print_overflow_msg(__func__, xdr);
4137 static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
4140 uint32_t attrlen, bitmap[3] = {0};
4143 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4145 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4147 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4149 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
4151 if ((status = decode_attr_fh_expire_type(xdr, bitmap,
4152 &res->fh_expire_type)) != 0)
4154 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
4156 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
4158 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
4160 status = verify_attr_len(xdr, savep, attrlen);
4162 dprintk("%s: xdr returned %d!\n", __func__, -status);
4166 static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
4169 uint32_t attrlen, bitmap[3] = {0};
4172 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4174 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4176 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4179 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
4181 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
4183 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
4185 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
4187 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
4189 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
4192 status = verify_attr_len(xdr, savep, attrlen);
4194 dprintk("%s: xdr returned %d!\n", __func__, -status);
4198 static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
4201 uint32_t attrlen, bitmap[3] = {0};
4204 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4206 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4208 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4211 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
4213 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
4216 status = verify_attr_len(xdr, savep, attrlen);
4218 dprintk("%s: xdr returned %d!\n", __func__, -status);
4222 static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap,
4223 struct nfs_fattr *fattr, struct nfs_fh *fh,
4224 struct nfs4_fs_locations *fs_loc,
4225 const struct nfs_server *server)
4232 status = decode_attr_type(xdr, bitmap, &type);
4237 fattr->mode |= nfs_type2fmt[type];
4238 fattr->valid |= status;
4241 status = decode_attr_change(xdr, bitmap, &fattr->change_attr);
4244 fattr->valid |= status;
4246 status = decode_attr_size(xdr, bitmap, &fattr->size);
4249 fattr->valid |= status;
4251 status = decode_attr_fsid(xdr, bitmap, &fattr->fsid);
4254 fattr->valid |= status;
4257 status = decode_attr_error(xdr, bitmap, &err);
4260 if (err == -NFS4ERR_WRONGSEC)
4261 nfs_fixup_secinfo_attributes(fattr, fh);
4263 status = decode_attr_filehandle(xdr, bitmap, fh);
4267 status = decode_attr_fileid(xdr, bitmap, &fattr->fileid);
4270 fattr->valid |= status;
4272 status = decode_attr_fs_locations(xdr, bitmap, fs_loc);
4275 fattr->valid |= status;
4277 status = decode_attr_mode(xdr, bitmap, &fmode);
4281 fattr->mode |= fmode;
4282 fattr->valid |= status;
4285 status = decode_attr_nlink(xdr, bitmap, &fattr->nlink);
4288 fattr->valid |= status;
4290 status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name);
4293 fattr->valid |= status;
4295 status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name);
4298 fattr->valid |= status;
4300 status = decode_attr_rdev(xdr, bitmap, &fattr->rdev);
4303 fattr->valid |= status;
4305 status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used);
4308 fattr->valid |= status;
4310 status = decode_attr_time_access(xdr, bitmap, &fattr->atime);
4313 fattr->valid |= status;
4315 status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime);
4318 fattr->valid |= status;
4320 status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime);
4323 fattr->valid |= status;
4325 status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid);
4328 fattr->valid |= status;
4331 dprintk("%s: xdr returned %d\n", __func__, -status);
4335 static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr,
4336 struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc,
4337 const struct nfs_server *server)
4344 status = decode_op_hdr(xdr, OP_GETATTR);
4348 status = decode_attr_bitmap(xdr, bitmap);
4352 status = decode_attr_length(xdr, &attrlen, &savep);
4356 status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, server);
4360 status = verify_attr_len(xdr, savep, attrlen);
4362 dprintk("%s: xdr returned %d\n", __func__, -status);
4366 static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr,
4367 const struct nfs_server *server)
4369 return decode_getfattr_generic(xdr, fattr, NULL, NULL, server);
4373 * Decode potentially multiple layout types. Currently we only support
4374 * one layout driver per file system.
4376 static int decode_first_pnfs_layout_type(struct xdr_stream *xdr,
4377 uint32_t *layouttype)
4382 p = xdr_inline_decode(xdr, 4);
4385 num = be32_to_cpup(p);
4387 /* pNFS is not supported by the underlying file system */
4393 printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout "
4394 "drivers per filesystem not supported\n", __func__);
4396 /* Decode and set first layout type, move xdr->p past unused types */
4397 p = xdr_inline_decode(xdr, num * 4);
4400 *layouttype = be32_to_cpup(p);
4403 print_overflow_msg(__func__, xdr);
4408 * The type of file system exported.
4409 * Note we must ensure that layouttype is set in any non-error case.
4411 static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap,
4412 uint32_t *layouttype)
4416 dprintk("%s: bitmap is %x\n", __func__, bitmap[1]);
4417 if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U)))
4419 if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) {
4420 status = decode_first_pnfs_layout_type(xdr, layouttype);
4421 bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES;
4428 * The prefered block size for layout directed io
4430 static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap,
4435 dprintk("%s: bitmap is %x\n", __func__, bitmap[2]);
4437 if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) {
4438 p = xdr_inline_decode(xdr, 4);
4440 print_overflow_msg(__func__, xdr);
4443 *res = be32_to_cpup(p);
4444 bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE;
4449 static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
4452 uint32_t attrlen, bitmap[3];
4455 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4457 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4459 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4462 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
4464 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
4466 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
4468 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
4470 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
4471 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
4473 fsinfo->wtpref = fsinfo->wtmax;
4474 status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta);
4477 status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype);
4480 status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize);
4484 status = verify_attr_len(xdr, savep, attrlen);
4486 dprintk("%s: xdr returned %d!\n", __func__, -status);
4490 static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
4496 /* Zero handle first to allow comparisons */
4497 memset(fh, 0, sizeof(*fh));
4499 status = decode_op_hdr(xdr, OP_GETFH);
4503 p = xdr_inline_decode(xdr, 4);
4506 len = be32_to_cpup(p);
4507 if (len > NFS4_FHSIZE)
4510 p = xdr_inline_decode(xdr, len);
4513 memcpy(fh->data, p, len);
4516 print_overflow_msg(__func__, xdr);
4520 static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4524 status = decode_op_hdr(xdr, OP_LINK);
4527 return decode_change_info(xdr, cinfo);
4531 * We create the owner, so we know a proper owner.id length is 4.
4533 static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
4535 uint64_t offset, length, clientid;
4537 uint32_t namelen, type;
4539 p = xdr_inline_decode(xdr, 32); /* read 32 bytes */
4542 p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */
4543 p = xdr_decode_hyper(p, &length);
4544 type = be32_to_cpup(p++); /* 4 byte read */
4545 if (fl != NULL) { /* manipulate file lock */
4546 fl->fl_start = (loff_t)offset;
4547 fl->fl_end = fl->fl_start + (loff_t)length - 1;
4548 if (length == ~(uint64_t)0)
4549 fl->fl_end = OFFSET_MAX;
4550 fl->fl_type = F_WRLCK;
4552 fl->fl_type = F_RDLCK;
4555 p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */
4556 namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */
4557 p = xdr_inline_decode(xdr, namelen); /* variable size field */
4559 return -NFS4ERR_DENIED;
4561 print_overflow_msg(__func__, xdr);
4565 static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res)
4569 status = decode_op_hdr(xdr, OP_LOCK);
4573 status = decode_stateid(xdr, &res->stateid);
4574 if (unlikely(status))
4576 } else if (status == -NFS4ERR_DENIED)
4577 status = decode_lock_denied(xdr, NULL);
4578 if (res->open_seqid != NULL)
4579 nfs_increment_open_seqid(status, res->open_seqid);
4580 nfs_increment_lock_seqid(status, res->lock_seqid);
4585 static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res)
4588 status = decode_op_hdr(xdr, OP_LOCKT);
4589 if (status == -NFS4ERR_DENIED)
4590 return decode_lock_denied(xdr, res->denied);
4594 static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
4598 status = decode_op_hdr(xdr, OP_LOCKU);
4600 nfs_increment_lock_seqid(status, res->seqid);
4602 status = decode_stateid(xdr, &res->stateid);
4606 static int decode_release_lockowner(struct xdr_stream *xdr)
4608 return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER);
4611 static int decode_lookup(struct xdr_stream *xdr)
4613 return decode_op_hdr(xdr, OP_LOOKUP);
4616 /* This is too sick! */
4617 static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
4620 uint32_t limit_type, nblocks, blocksize;
4622 p = xdr_inline_decode(xdr, 12);
4625 limit_type = be32_to_cpup(p++);
4626 switch (limit_type) {
4628 xdr_decode_hyper(p, maxsize);
4631 nblocks = be32_to_cpup(p++);
4632 blocksize = be32_to_cpup(p);
4633 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
4637 print_overflow_msg(__func__, xdr);
4641 static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
4644 uint32_t delegation_type;
4647 p = xdr_inline_decode(xdr, 4);
4650 delegation_type = be32_to_cpup(p);
4651 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
4652 res->delegation_type = 0;
4655 status = decode_stateid(xdr, &res->delegation);
4656 if (unlikely(status))
4658 p = xdr_inline_decode(xdr, 4);
4661 res->do_recall = be32_to_cpup(p);
4663 switch (delegation_type) {
4664 case NFS4_OPEN_DELEGATE_READ:
4665 res->delegation_type = FMODE_READ;
4667 case NFS4_OPEN_DELEGATE_WRITE:
4668 res->delegation_type = FMODE_WRITE|FMODE_READ;
4669 if (decode_space_limit(xdr, &res->maxsize) < 0)
4672 return decode_ace(xdr, NULL, res->server->nfs_client);
4674 print_overflow_msg(__func__, xdr);
4678 static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
4681 uint32_t savewords, bmlen, i;
4684 status = decode_op_hdr(xdr, OP_OPEN);
4686 nfs_increment_open_seqid(status, res->seqid);
4688 status = decode_stateid(xdr, &res->stateid);
4689 if (unlikely(status))
4692 decode_change_info(xdr, &res->cinfo);
4694 p = xdr_inline_decode(xdr, 8);
4697 res->rflags = be32_to_cpup(p++);
4698 bmlen = be32_to_cpup(p);
4702 p = xdr_inline_decode(xdr, bmlen << 2);
4705 savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE);
4706 for (i = 0; i < savewords; ++i)
4707 res->attrset[i] = be32_to_cpup(p++);
4708 for (; i < NFS4_BITMAP_SIZE; i++)
4709 res->attrset[i] = 0;
4711 return decode_delegation(xdr, res);
4713 dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen);
4716 print_overflow_msg(__func__, xdr);
4720 static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
4724 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
4726 nfs_increment_open_seqid(status, res->seqid);
4728 status = decode_stateid(xdr, &res->stateid);
4732 static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
4736 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
4738 nfs_increment_open_seqid(status, res->seqid);
4740 status = decode_stateid(xdr, &res->stateid);
4744 static int decode_putfh(struct xdr_stream *xdr)
4746 return decode_op_hdr(xdr, OP_PUTFH);
4749 static int decode_putrootfh(struct xdr_stream *xdr)
4751 return decode_op_hdr(xdr, OP_PUTROOTFH);
4754 static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res)
4756 struct kvec *iov = req->rq_rcv_buf.head;
4758 uint32_t count, eof, recvd, hdrlen;
4761 status = decode_op_hdr(xdr, OP_READ);
4764 p = xdr_inline_decode(xdr, 8);
4767 eof = be32_to_cpup(p++);
4768 count = be32_to_cpup(p);
4769 hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base;
4770 recvd = req->rq_rcv_buf.len - hdrlen;
4771 if (count > recvd) {
4772 dprintk("NFS: server cheating in read reply: "
4773 "count %u > recvd %u\n", count, recvd);
4777 xdr_read_pages(xdr, count);
4782 print_overflow_msg(__func__, xdr);
4786 static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
4788 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
4789 struct kvec *iov = rcvbuf->head;
4791 u32 recvd, pglen = rcvbuf->page_len;
4795 status = decode_op_hdr(xdr, OP_READDIR);
4797 status = decode_verifier(xdr, readdir->verifier.data);
4798 if (unlikely(status))
4800 memcpy(verf, readdir->verifier.data, sizeof(verf));
4801 dprintk("%s: verifier = %08x:%08x\n",
4802 __func__, verf[0], verf[1]);
4804 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
4805 recvd = rcvbuf->len - hdrlen;
4808 xdr_read_pages(xdr, pglen);
4814 static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
4816 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
4817 struct kvec *iov = rcvbuf->head;
4823 status = decode_op_hdr(xdr, OP_READLINK);
4827 /* Convert length of symlink */
4828 p = xdr_inline_decode(xdr, 4);
4831 len = be32_to_cpup(p);
4832 if (len >= rcvbuf->page_len || len <= 0) {
4833 dprintk("nfs: server returned giant symlink!\n");
4834 return -ENAMETOOLONG;
4836 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
4837 recvd = req->rq_rcv_buf.len - hdrlen;
4839 dprintk("NFS: server cheating in readlink reply: "
4840 "count %u > recvd %u\n", len, recvd);
4843 xdr_read_pages(xdr, len);
4845 * The XDR encode routine has set things up so that
4846 * the link text will be copied directly into the
4847 * buffer. We just have to do overflow-checking,
4848 * and and null-terminate the text (the VFS expects
4849 * null-termination).
4851 xdr_terminate_string(rcvbuf, len);
4854 print_overflow_msg(__func__, xdr);
4858 static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4862 status = decode_op_hdr(xdr, OP_REMOVE);
4865 status = decode_change_info(xdr, cinfo);
4870 static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
4871 struct nfs4_change_info *new_cinfo)
4875 status = decode_op_hdr(xdr, OP_RENAME);
4878 if ((status = decode_change_info(xdr, old_cinfo)))
4880 status = decode_change_info(xdr, new_cinfo);
4885 static int decode_renew(struct xdr_stream *xdr)
4887 return decode_op_hdr(xdr, OP_RENEW);
4891 decode_restorefh(struct xdr_stream *xdr)
4893 return decode_op_hdr(xdr, OP_RESTOREFH);
4896 static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
4897 struct nfs_getaclres *res)
4899 __be32 *savep, *bm_p;
4902 struct kvec *iov = req->rq_rcv_buf.head;
4906 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4909 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4911 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4914 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
4916 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
4920 /* The bitmap (xdr len + bitmaps) and the attr xdr len words
4921 * are stored with the acl data to handle the problem of
4922 * variable length bitmaps.*/
4924 res->acl_data_offset = be32_to_cpup(bm_p) + 2;
4925 res->acl_data_offset <<= 2;
4927 /* We ignore &savep and don't do consistency checks on
4928 * the attr length. Let userspace figure it out.... */
4929 hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base;
4930 attrlen += res->acl_data_offset;
4931 recvd = req->rq_rcv_buf.len - hdrlen;
4932 if (attrlen > recvd) {
4933 if (res->acl_flags & NFS4_ACL_LEN_REQUEST) {
4934 /* getxattr interface called with a NULL buf */
4935 res->acl_len = attrlen;
4938 dprintk("NFS: acl reply: attrlen %u > recvd %u\n",
4942 xdr_read_pages(xdr, attrlen);
4943 res->acl_len = attrlen;
4945 status = -EOPNOTSUPP;
4952 decode_savefh(struct xdr_stream *xdr)
4954 return decode_op_hdr(xdr, OP_SAVEFH);
4957 static int decode_setattr(struct xdr_stream *xdr)
4963 status = decode_op_hdr(xdr, OP_SETATTR);
4966 p = xdr_inline_decode(xdr, 4);
4969 bmlen = be32_to_cpup(p);
4970 p = xdr_inline_decode(xdr, bmlen << 2);
4974 print_overflow_msg(__func__, xdr);
4978 static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res)
4984 p = xdr_inline_decode(xdr, 8);
4987 opnum = be32_to_cpup(p++);
4988 if (opnum != OP_SETCLIENTID) {
4989 dprintk("nfs: decode_setclientid: Server returned operation"
4993 nfserr = be32_to_cpup(p);
4994 if (nfserr == NFS_OK) {
4995 p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE);
4998 p = xdr_decode_hyper(p, &res->clientid);
4999 memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE);
5000 } else if (nfserr == NFSERR_CLID_INUSE) {
5003 /* skip netid string */
5004 p = xdr_inline_decode(xdr, 4);
5007 len = be32_to_cpup(p);
5008 p = xdr_inline_decode(xdr, len);
5012 /* skip uaddr string */
5013 p = xdr_inline_decode(xdr, 4);
5016 len = be32_to_cpup(p);
5017 p = xdr_inline_decode(xdr, len);
5020 return -NFSERR_CLID_INUSE;
5022 return nfs4_stat_to_errno(nfserr);
5026 print_overflow_msg(__func__, xdr);
5030 static int decode_setclientid_confirm(struct xdr_stream *xdr)
5032 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
5035 static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
5040 status = decode_op_hdr(xdr, OP_WRITE);
5044 p = xdr_inline_decode(xdr, 16);
5047 res->count = be32_to_cpup(p++);
5048 res->verf->committed = be32_to_cpup(p++);
5049 memcpy(res->verf->verifier, p, NFS4_VERIFIER_SIZE);
5052 print_overflow_msg(__func__, xdr);
5056 static int decode_delegreturn(struct xdr_stream *xdr)
5058 return decode_op_hdr(xdr, OP_DELEGRETURN);
5061 static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor)
5065 p = xdr_inline_decode(xdr, 4);
5068 flavor->gss.sec_oid4.len = be32_to_cpup(p);
5069 if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN)
5072 p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len);
5075 memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len);
5077 p = xdr_inline_decode(xdr, 8);
5080 flavor->gss.qop4 = be32_to_cpup(p++);
5081 flavor->gss.service = be32_to_cpup(p);
5086 print_overflow_msg(__func__, xdr);
5092 static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
5094 struct nfs4_secinfo_flavor *sec_flavor;
5099 status = decode_op_hdr(xdr, OP_SECINFO);
5102 p = xdr_inline_decode(xdr, 4);
5106 res->flavors->num_flavors = 0;
5107 num_flavors = be32_to_cpup(p);
5109 for (i = 0; i < num_flavors; i++) {
5110 sec_flavor = &res->flavors->flavors[i];
5111 if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE)
5114 p = xdr_inline_decode(xdr, 4);
5117 sec_flavor->flavor = be32_to_cpup(p);
5119 if (sec_flavor->flavor == RPC_AUTH_GSS) {
5120 status = decode_secinfo_gss(xdr, sec_flavor);
5124 res->flavors->num_flavors++;
5130 print_overflow_msg(__func__, xdr);
5134 #if defined(CONFIG_NFS_V4_1)
5135 static int decode_exchange_id(struct xdr_stream *xdr,
5136 struct nfs41_exchange_id_res *res)
5142 struct nfs_client *clp = res->client;
5143 uint32_t impl_id_count;
5145 status = decode_op_hdr(xdr, OP_EXCHANGE_ID);
5149 p = xdr_inline_decode(xdr, 8);
5152 xdr_decode_hyper(p, &clp->cl_clientid);
5153 p = xdr_inline_decode(xdr, 12);
5156 clp->cl_seqid = be32_to_cpup(p++);
5157 clp->cl_exchange_flags = be32_to_cpup(p++);
5159 /* We ask for SP4_NONE */
5160 dummy = be32_to_cpup(p);
5161 if (dummy != SP4_NONE)
5164 /* Throw away minor_id */
5165 p = xdr_inline_decode(xdr, 8);
5169 /* Throw away Major id */
5170 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5171 if (unlikely(status))
5174 /* Save server_scope */
5175 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5176 if (unlikely(status))
5179 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5182 memcpy(res->server_scope->server_scope, dummy_str, dummy);
5183 res->server_scope->server_scope_sz = dummy;
5185 /* Implementation Id */
5186 p = xdr_inline_decode(xdr, 4);
5189 impl_id_count = be32_to_cpup(p++);
5191 if (impl_id_count) {
5193 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5194 if (unlikely(status))
5196 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5198 memcpy(res->impl_id->domain, dummy_str, dummy);
5201 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5202 if (unlikely(status))
5204 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5206 memcpy(res->impl_id->name, dummy_str, dummy);
5209 p = xdr_inline_decode(xdr, 12);
5212 p = xdr_decode_hyper(p, &res->impl_id->date.seconds);
5213 res->impl_id->date.nseconds = be32_to_cpup(p);
5215 /* if there's more than one entry, ignore the rest */
5219 print_overflow_msg(__func__, xdr);
5223 static int decode_chan_attrs(struct xdr_stream *xdr,
5224 struct nfs4_channel_attrs *attrs)
5229 p = xdr_inline_decode(xdr, 28);
5232 val = be32_to_cpup(p++); /* headerpadsz */
5234 return -EINVAL; /* no support for header padding yet */
5235 attrs->max_rqst_sz = be32_to_cpup(p++);
5236 attrs->max_resp_sz = be32_to_cpup(p++);
5237 attrs->max_resp_sz_cached = be32_to_cpup(p++);
5238 attrs->max_ops = be32_to_cpup(p++);
5239 attrs->max_reqs = be32_to_cpup(p++);
5240 nr_attrs = be32_to_cpup(p);
5241 if (unlikely(nr_attrs > 1)) {
5242 printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs "
5243 "count %u\n", __func__, nr_attrs);
5246 if (nr_attrs == 1) {
5247 p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */
5253 print_overflow_msg(__func__, xdr);
5257 static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid)
5259 return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN);
5262 static int decode_create_session(struct xdr_stream *xdr,
5263 struct nfs41_create_session_res *res)
5267 struct nfs_client *clp = res->client;
5268 struct nfs4_session *session = clp->cl_session;
5270 status = decode_op_hdr(xdr, OP_CREATE_SESSION);
5272 status = decode_sessionid(xdr, &session->sess_id);
5273 if (unlikely(status))
5277 p = xdr_inline_decode(xdr, 8);
5280 clp->cl_seqid = be32_to_cpup(p++);
5281 session->flags = be32_to_cpup(p);
5283 /* Channel attributes */
5284 status = decode_chan_attrs(xdr, &session->fc_attrs);
5286 status = decode_chan_attrs(xdr, &session->bc_attrs);
5289 print_overflow_msg(__func__, xdr);
5293 static int decode_destroy_session(struct xdr_stream *xdr, void *dummy)
5295 return decode_op_hdr(xdr, OP_DESTROY_SESSION);
5298 static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy)
5300 return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE);
5302 #endif /* CONFIG_NFS_V4_1 */
5304 static int decode_sequence(struct xdr_stream *xdr,
5305 struct nfs4_sequence_res *res,
5306 struct rpc_rqst *rqstp)
5308 #if defined(CONFIG_NFS_V4_1)
5309 struct nfs4_sessionid id;
5314 if (!res->sr_session)
5317 status = decode_op_hdr(xdr, OP_SEQUENCE);
5319 status = decode_sessionid(xdr, &id);
5320 if (unlikely(status))
5324 * If the server returns different values for sessionID, slotID or
5325 * sequence number, the server is looney tunes.
5327 status = -EREMOTEIO;
5329 if (memcmp(id.data, res->sr_session->sess_id.data,
5330 NFS4_MAX_SESSIONID_LEN)) {
5331 dprintk("%s Invalid session id\n", __func__);
5335 p = xdr_inline_decode(xdr, 20);
5340 dummy = be32_to_cpup(p++);
5341 if (dummy != res->sr_slot->seq_nr) {
5342 dprintk("%s Invalid sequence number\n", __func__);
5346 dummy = be32_to_cpup(p++);
5347 if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) {
5348 dprintk("%s Invalid slot id\n", __func__);
5351 /* highest slot id - currently not processed */
5352 dummy = be32_to_cpup(p++);
5353 /* target highest slot id - currently not processed */
5354 dummy = be32_to_cpup(p++);
5356 res->sr_status_flags = be32_to_cpup(p);
5359 res->sr_status = status;
5362 print_overflow_msg(__func__, xdr);
5365 #else /* CONFIG_NFS_V4_1 */
5367 #endif /* CONFIG_NFS_V4_1 */
5370 #if defined(CONFIG_NFS_V4_1)
5372 * TODO: Need to handle case when EOF != true;
5374 static int decode_getdevicelist(struct xdr_stream *xdr,
5375 struct pnfs_devicelist *res)
5379 struct nfs_writeverf verftemp;
5381 status = decode_op_hdr(xdr, OP_GETDEVICELIST);
5385 p = xdr_inline_decode(xdr, 8 + 8 + 4);
5389 /* TODO: Skip cookie for now */
5393 p = xdr_decode_opaque_fixed(p, verftemp.verifier, NFS4_VERIFIER_SIZE);
5395 res->num_devs = be32_to_cpup(p);
5397 dprintk("%s: num_dev %d\n", __func__, res->num_devs);
5399 if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) {
5400 printk(KERN_ERR "NFS: %s too many result dev_num %u\n",
5401 __func__, res->num_devs);
5405 p = xdr_inline_decode(xdr,
5406 res->num_devs * NFS4_DEVICEID4_SIZE + 4);
5409 for (i = 0; i < res->num_devs; i++)
5410 p = xdr_decode_opaque_fixed(p, res->dev_id[i].data,
5411 NFS4_DEVICEID4_SIZE);
5412 res->eof = be32_to_cpup(p);
5415 print_overflow_msg(__func__, xdr);
5419 static int decode_getdeviceinfo(struct xdr_stream *xdr,
5420 struct pnfs_device *pdev)
5426 status = decode_op_hdr(xdr, OP_GETDEVICEINFO);
5428 if (status == -ETOOSMALL) {
5429 p = xdr_inline_decode(xdr, 4);
5432 pdev->mincount = be32_to_cpup(p);
5433 dprintk("%s: Min count too small. mincnt = %u\n",
5434 __func__, pdev->mincount);
5439 p = xdr_inline_decode(xdr, 8);
5442 type = be32_to_cpup(p++);
5443 if (type != pdev->layout_type) {
5444 dprintk("%s: layout mismatch req: %u pdev: %u\n",
5445 __func__, pdev->layout_type, type);
5449 * Get the length of the opaque device_addr4. xdr_read_pages places
5450 * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages)
5451 * and places the remaining xdr data in xdr_buf->tail
5453 pdev->mincount = be32_to_cpup(p);
5454 xdr_read_pages(xdr, pdev->mincount); /* include space for the length */
5456 /* Parse notification bitmap, verifying that it is zero. */
5457 p = xdr_inline_decode(xdr, 4);
5460 len = be32_to_cpup(p);
5464 p = xdr_inline_decode(xdr, 4 * len);
5467 for (i = 0; i < len; i++, p++) {
5468 if (be32_to_cpup(p)) {
5469 dprintk("%s: notifications not supported\n",
5477 print_overflow_msg(__func__, xdr);
5481 static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
5482 struct nfs4_layoutget_res *res)
5487 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
5488 struct kvec *iov = rcvbuf->head;
5491 status = decode_op_hdr(xdr, OP_LAYOUTGET);
5494 p = xdr_inline_decode(xdr, 4);
5497 res->return_on_close = be32_to_cpup(p);
5498 decode_stateid(xdr, &res->stateid);
5499 p = xdr_inline_decode(xdr, 4);
5502 layout_count = be32_to_cpup(p);
5503 if (!layout_count) {
5504 dprintk("%s: server responded with empty layout array\n",
5509 p = xdr_inline_decode(xdr, 28);
5512 p = xdr_decode_hyper(p, &res->range.offset);
5513 p = xdr_decode_hyper(p, &res->range.length);
5514 res->range.iomode = be32_to_cpup(p++);
5515 res->type = be32_to_cpup(p++);
5516 res->layoutp->len = be32_to_cpup(p);
5518 dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n",
5520 (unsigned long)res->range.offset,
5521 (unsigned long)res->range.length,
5526 hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base;
5527 recvd = req->rq_rcv_buf.len - hdrlen;
5528 if (res->layoutp->len > recvd) {
5529 dprintk("NFS: server cheating in layoutget reply: "
5530 "layout len %u > recvd %u\n",
5531 res->layoutp->len, recvd);
5535 xdr_read_pages(xdr, res->layoutp->len);
5537 if (layout_count > 1) {
5538 /* We only handle a length one array at the moment. Any
5539 * further entries are just ignored. Note that this means
5540 * the client may see a response that is less than the
5541 * minimum it requested.
5543 dprintk("%s: server responded with %d layouts, dropping tail\n",
5544 __func__, layout_count);
5549 print_overflow_msg(__func__, xdr);
5553 static int decode_layoutreturn(struct xdr_stream *xdr,
5554 struct nfs4_layoutreturn_res *res)
5559 status = decode_op_hdr(xdr, OP_LAYOUTRETURN);
5562 p = xdr_inline_decode(xdr, 4);
5565 res->lrs_present = be32_to_cpup(p);
5566 if (res->lrs_present)
5567 status = decode_stateid(xdr, &res->stateid);
5570 print_overflow_msg(__func__, xdr);
5574 static int decode_layoutcommit(struct xdr_stream *xdr,
5575 struct rpc_rqst *req,
5576 struct nfs4_layoutcommit_res *res)
5582 status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT);
5583 res->status = status;
5587 p = xdr_inline_decode(xdr, 4);
5590 sizechanged = be32_to_cpup(p);
5593 /* throw away new size */
5594 p = xdr_inline_decode(xdr, 8);
5600 print_overflow_msg(__func__, xdr);
5604 static int decode_test_stateid(struct xdr_stream *xdr,
5605 struct nfs41_test_stateid_res *res)
5611 status = decode_op_hdr(xdr, OP_TEST_STATEID);
5615 p = xdr_inline_decode(xdr, 4);
5618 num_res = be32_to_cpup(p++);
5622 p = xdr_inline_decode(xdr, 4);
5625 res->status = be32_to_cpup(p++);
5629 print_overflow_msg(__func__, xdr);
5634 static int decode_free_stateid(struct xdr_stream *xdr,
5635 struct nfs41_free_stateid_res *res)
5640 status = decode_op_hdr(xdr, OP_FREE_STATEID);
5644 p = xdr_inline_decode(xdr, 4);
5647 res->status = be32_to_cpup(p++);
5650 print_overflow_msg(__func__, xdr);
5653 #endif /* CONFIG_NFS_V4_1 */
5656 * END OF "GENERIC" DECODE ROUTINES.
5660 * Decode OPEN_DOWNGRADE response
5662 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp,
5663 struct xdr_stream *xdr,
5664 struct nfs_closeres *res)
5666 struct compound_hdr hdr;
5669 status = decode_compound_hdr(xdr, &hdr);
5672 status = decode_sequence(xdr, &res->seq_res, rqstp);
5675 status = decode_putfh(xdr);
5678 status = decode_open_downgrade(xdr, res);
5681 decode_getfattr(xdr, res->fattr, res->server);
5687 * Decode ACCESS response
5689 static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5690 struct nfs4_accessres *res)
5692 struct compound_hdr hdr;
5695 status = decode_compound_hdr(xdr, &hdr);
5698 status = decode_sequence(xdr, &res->seq_res, rqstp);
5701 status = decode_putfh(xdr);
5704 status = decode_access(xdr, res);
5707 decode_getfattr(xdr, res->fattr, res->server);
5713 * Decode LOOKUP response
5715 static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5716 struct nfs4_lookup_res *res)
5718 struct compound_hdr hdr;
5721 status = decode_compound_hdr(xdr, &hdr);
5724 status = decode_sequence(xdr, &res->seq_res, rqstp);
5727 status = decode_putfh(xdr);
5730 status = decode_lookup(xdr);
5733 status = decode_getfh(xdr, res->fh);
5736 status = decode_getfattr(xdr, res->fattr, res->server);
5742 * Decode LOOKUP_ROOT response
5744 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp,
5745 struct xdr_stream *xdr,
5746 struct nfs4_lookup_res *res)
5748 struct compound_hdr hdr;
5751 status = decode_compound_hdr(xdr, &hdr);
5754 status = decode_sequence(xdr, &res->seq_res, rqstp);
5757 status = decode_putrootfh(xdr);
5760 status = decode_getfh(xdr, res->fh);
5762 status = decode_getfattr(xdr, res->fattr, res->server);
5768 * Decode REMOVE response
5770 static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5771 struct nfs_removeres *res)
5773 struct compound_hdr hdr;
5776 status = decode_compound_hdr(xdr, &hdr);
5779 status = decode_sequence(xdr, &res->seq_res, rqstp);
5782 status = decode_putfh(xdr);
5785 status = decode_remove(xdr, &res->cinfo);
5788 decode_getfattr(xdr, res->dir_attr, res->server);
5794 * Decode RENAME response
5796 static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5797 struct nfs_renameres *res)
5799 struct compound_hdr hdr;
5802 status = decode_compound_hdr(xdr, &hdr);
5805 status = decode_sequence(xdr, &res->seq_res, rqstp);
5808 status = decode_putfh(xdr);
5811 status = decode_savefh(xdr);
5814 status = decode_putfh(xdr);
5817 status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo);
5820 /* Current FH is target directory */
5821 if (decode_getfattr(xdr, res->new_fattr, res->server))
5823 status = decode_restorefh(xdr);
5826 decode_getfattr(xdr, res->old_fattr, res->server);
5832 * Decode LINK response
5834 static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5835 struct nfs4_link_res *res)
5837 struct compound_hdr hdr;
5840 status = decode_compound_hdr(xdr, &hdr);
5843 status = decode_sequence(xdr, &res->seq_res, rqstp);
5846 status = decode_putfh(xdr);
5849 status = decode_savefh(xdr);
5852 status = decode_putfh(xdr);
5855 status = decode_link(xdr, &res->cinfo);
5859 * Note order: OP_LINK leaves the directory as the current
5862 if (decode_getfattr(xdr, res->dir_attr, res->server))
5864 status = decode_restorefh(xdr);
5867 decode_getfattr(xdr, res->fattr, res->server);
5873 * Decode CREATE response
5875 static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5876 struct nfs4_create_res *res)
5878 struct compound_hdr hdr;
5881 status = decode_compound_hdr(xdr, &hdr);
5884 status = decode_sequence(xdr, &res->seq_res, rqstp);
5887 status = decode_putfh(xdr);
5890 status = decode_savefh(xdr);
5893 status = decode_create(xdr, &res->dir_cinfo);
5896 status = decode_getfh(xdr, res->fh);
5899 if (decode_getfattr(xdr, res->fattr, res->server))
5901 status = decode_restorefh(xdr);
5904 decode_getfattr(xdr, res->dir_fattr, res->server);
5910 * Decode SYMLINK response
5912 static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5913 struct nfs4_create_res *res)
5915 return nfs4_xdr_dec_create(rqstp, xdr, res);
5919 * Decode GETATTR response
5921 static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5922 struct nfs4_getattr_res *res)
5924 struct compound_hdr hdr;
5927 status = decode_compound_hdr(xdr, &hdr);
5930 status = decode_sequence(xdr, &res->seq_res, rqstp);
5933 status = decode_putfh(xdr);
5936 status = decode_getfattr(xdr, res->fattr, res->server);
5942 * Encode an SETACL request
5944 static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr,
5945 struct nfs_setaclargs *args)
5947 struct compound_hdr hdr = {
5948 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
5951 encode_compound_hdr(xdr, req, &hdr);
5952 encode_sequence(xdr, &args->seq_args, &hdr);
5953 encode_putfh(xdr, args->fh, &hdr);
5954 encode_setacl(xdr, args, &hdr);
5959 * Decode SETACL response
5962 nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5963 struct nfs_setaclres *res)
5965 struct compound_hdr hdr;
5968 status = decode_compound_hdr(xdr, &hdr);
5971 status = decode_sequence(xdr, &res->seq_res, rqstp);
5974 status = decode_putfh(xdr);
5977 status = decode_setattr(xdr);
5983 * Decode GETACL response
5986 nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5987 struct nfs_getaclres *res)
5989 struct compound_hdr hdr;
5992 if (res->acl_scratch != NULL) {
5993 void *p = page_address(res->acl_scratch);
5994 xdr_set_scratch_buffer(xdr, p, PAGE_SIZE);
5996 status = decode_compound_hdr(xdr, &hdr);
5999 status = decode_sequence(xdr, &res->seq_res, rqstp);
6002 status = decode_putfh(xdr);
6005 status = decode_getacl(xdr, rqstp, res);
6012 * Decode CLOSE response
6014 static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6015 struct nfs_closeres *res)
6017 struct compound_hdr hdr;
6020 status = decode_compound_hdr(xdr, &hdr);
6023 status = decode_sequence(xdr, &res->seq_res, rqstp);
6026 status = decode_putfh(xdr);
6029 status = decode_close(xdr, res);
6033 * Note: Server may do delete on close for this file
6034 * in which case the getattr call will fail with
6035 * an ESTALE error. Shouldn't be a problem,
6036 * though, since fattr->valid will remain unset.
6038 decode_getfattr(xdr, res->fattr, res->server);
6044 * Decode OPEN response
6046 static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6047 struct nfs_openres *res)
6049 struct compound_hdr hdr;
6052 status = decode_compound_hdr(xdr, &hdr);
6055 status = decode_sequence(xdr, &res->seq_res, rqstp);
6058 status = decode_putfh(xdr);
6061 status = decode_savefh(xdr);
6064 status = decode_open(xdr, res);
6067 if (decode_getfh(xdr, &res->fh) != 0)
6069 if (decode_getfattr(xdr, res->f_attr, res->server) != 0)
6071 if (decode_restorefh(xdr) != 0)
6073 decode_getfattr(xdr, res->dir_attr, res->server);
6079 * Decode OPEN_CONFIRM response
6081 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp,
6082 struct xdr_stream *xdr,
6083 struct nfs_open_confirmres *res)
6085 struct compound_hdr hdr;
6088 status = decode_compound_hdr(xdr, &hdr);
6091 status = decode_putfh(xdr);
6094 status = decode_open_confirm(xdr, res);
6100 * Decode OPEN response
6102 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp,
6103 struct xdr_stream *xdr,
6104 struct nfs_openres *res)
6106 struct compound_hdr hdr;
6109 status = decode_compound_hdr(xdr, &hdr);
6112 status = decode_sequence(xdr, &res->seq_res, rqstp);
6115 status = decode_putfh(xdr);
6118 status = decode_open(xdr, res);
6121 decode_getfattr(xdr, res->f_attr, res->server);
6127 * Decode SETATTR response
6129 static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp,
6130 struct xdr_stream *xdr,
6131 struct nfs_setattrres *res)
6133 struct compound_hdr hdr;
6136 status = decode_compound_hdr(xdr, &hdr);
6139 status = decode_sequence(xdr, &res->seq_res, rqstp);
6142 status = decode_putfh(xdr);
6145 status = decode_setattr(xdr);
6148 decode_getfattr(xdr, res->fattr, res->server);
6154 * Decode LOCK response
6156 static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6157 struct nfs_lock_res *res)
6159 struct compound_hdr hdr;
6162 status = decode_compound_hdr(xdr, &hdr);
6165 status = decode_sequence(xdr, &res->seq_res, rqstp);
6168 status = decode_putfh(xdr);
6171 status = decode_lock(xdr, res);
6177 * Decode LOCKT response
6179 static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6180 struct nfs_lockt_res *res)
6182 struct compound_hdr hdr;
6185 status = decode_compound_hdr(xdr, &hdr);
6188 status = decode_sequence(xdr, &res->seq_res, rqstp);
6191 status = decode_putfh(xdr);
6194 status = decode_lockt(xdr, res);
6200 * Decode LOCKU response
6202 static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6203 struct nfs_locku_res *res)
6205 struct compound_hdr hdr;
6208 status = decode_compound_hdr(xdr, &hdr);
6211 status = decode_sequence(xdr, &res->seq_res, rqstp);
6214 status = decode_putfh(xdr);
6217 status = decode_locku(xdr, res);
6222 static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp,
6223 struct xdr_stream *xdr, void *dummy)
6225 struct compound_hdr hdr;
6228 status = decode_compound_hdr(xdr, &hdr);
6230 status = decode_release_lockowner(xdr);
6235 * Decode READLINK response
6237 static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp,
6238 struct xdr_stream *xdr,
6239 struct nfs4_readlink_res *res)
6241 struct compound_hdr hdr;
6244 status = decode_compound_hdr(xdr, &hdr);
6247 status = decode_sequence(xdr, &res->seq_res, rqstp);
6250 status = decode_putfh(xdr);
6253 status = decode_readlink(xdr, rqstp);
6259 * Decode READDIR response
6261 static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6262 struct nfs4_readdir_res *res)
6264 struct compound_hdr hdr;
6267 status = decode_compound_hdr(xdr, &hdr);
6270 status = decode_sequence(xdr, &res->seq_res, rqstp);
6273 status = decode_putfh(xdr);
6276 status = decode_readdir(xdr, rqstp, res);
6282 * Decode Read response
6284 static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6285 struct nfs_readres *res)
6287 struct compound_hdr hdr;
6290 status = decode_compound_hdr(xdr, &hdr);
6293 status = decode_sequence(xdr, &res->seq_res, rqstp);
6296 status = decode_putfh(xdr);
6299 status = decode_read(xdr, rqstp, res);
6301 status = res->count;
6307 * Decode WRITE response
6309 static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6310 struct nfs_writeres *res)
6312 struct compound_hdr hdr;
6315 status = decode_compound_hdr(xdr, &hdr);
6318 status = decode_sequence(xdr, &res->seq_res, rqstp);
6321 status = decode_putfh(xdr);
6324 status = decode_write(xdr, res);
6328 decode_getfattr(xdr, res->fattr, res->server);
6330 status = res->count;
6336 * Decode COMMIT response
6338 static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6339 struct nfs_writeres *res)
6341 struct compound_hdr hdr;
6344 status = decode_compound_hdr(xdr, &hdr);
6347 status = decode_sequence(xdr, &res->seq_res, rqstp);
6350 status = decode_putfh(xdr);
6353 status = decode_commit(xdr, res);
6357 decode_getfattr(xdr, res->fattr, res->server);
6363 * Decode FSINFO response
6365 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
6366 struct nfs4_fsinfo_res *res)
6368 struct compound_hdr hdr;
6371 status = decode_compound_hdr(xdr, &hdr);
6373 status = decode_sequence(xdr, &res->seq_res, req);
6375 status = decode_putfh(xdr);
6377 status = decode_fsinfo(xdr, res->fsinfo);
6382 * Decode PATHCONF response
6384 static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
6385 struct nfs4_pathconf_res *res)
6387 struct compound_hdr hdr;
6390 status = decode_compound_hdr(xdr, &hdr);
6392 status = decode_sequence(xdr, &res->seq_res, req);
6394 status = decode_putfh(xdr);
6396 status = decode_pathconf(xdr, res->pathconf);
6401 * Decode STATFS response
6403 static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
6404 struct nfs4_statfs_res *res)
6406 struct compound_hdr hdr;
6409 status = decode_compound_hdr(xdr, &hdr);
6411 status = decode_sequence(xdr, &res->seq_res, req);
6413 status = decode_putfh(xdr);
6415 status = decode_statfs(xdr, res->fsstat);
6420 * Decode GETATTR_BITMAP response
6422 static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req,
6423 struct xdr_stream *xdr,
6424 struct nfs4_server_caps_res *res)
6426 struct compound_hdr hdr;
6429 status = decode_compound_hdr(xdr, &hdr);
6432 status = decode_sequence(xdr, &res->seq_res, req);
6435 status = decode_putfh(xdr);
6438 status = decode_server_caps(xdr, res);
6444 * Decode RENEW response
6446 static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6449 struct compound_hdr hdr;
6452 status = decode_compound_hdr(xdr, &hdr);
6454 status = decode_renew(xdr);
6459 * Decode SETCLIENTID response
6461 static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req,
6462 struct xdr_stream *xdr,
6463 struct nfs4_setclientid_res *res)
6465 struct compound_hdr hdr;
6468 status = decode_compound_hdr(xdr, &hdr);
6470 status = decode_setclientid(xdr, res);
6475 * Decode SETCLIENTID_CONFIRM response
6477 static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req,
6478 struct xdr_stream *xdr,
6479 struct nfs_fsinfo *fsinfo)
6481 struct compound_hdr hdr;
6484 status = decode_compound_hdr(xdr, &hdr);
6486 status = decode_setclientid_confirm(xdr);
6488 status = decode_putrootfh(xdr);
6490 status = decode_fsinfo(xdr, fsinfo);
6495 * Decode DELEGRETURN response
6497 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp,
6498 struct xdr_stream *xdr,
6499 struct nfs4_delegreturnres *res)
6501 struct compound_hdr hdr;
6504 status = decode_compound_hdr(xdr, &hdr);
6507 status = decode_sequence(xdr, &res->seq_res, rqstp);
6510 status = decode_putfh(xdr);
6513 status = decode_delegreturn(xdr);
6516 decode_getfattr(xdr, res->fattr, res->server);
6522 * Decode FS_LOCATIONS response
6524 static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req,
6525 struct xdr_stream *xdr,
6526 struct nfs4_fs_locations_res *res)
6528 struct compound_hdr hdr;
6531 status = decode_compound_hdr(xdr, &hdr);
6534 status = decode_sequence(xdr, &res->seq_res, req);
6537 status = decode_putfh(xdr);
6540 status = decode_lookup(xdr);
6543 xdr_enter_page(xdr, PAGE_SIZE);
6544 status = decode_getfattr_generic(xdr, &res->fs_locations->fattr,
6545 NULL, res->fs_locations,
6546 res->fs_locations->server);
6552 * Decode SECINFO response
6554 static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp,
6555 struct xdr_stream *xdr,
6556 struct nfs4_secinfo_res *res)
6558 struct compound_hdr hdr;
6561 status = decode_compound_hdr(xdr, &hdr);
6564 status = decode_sequence(xdr, &res->seq_res, rqstp);
6567 status = decode_putfh(xdr);
6570 status = decode_secinfo(xdr, res);
6575 #if defined(CONFIG_NFS_V4_1)
6577 * Decode EXCHANGE_ID response
6579 static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp,
6580 struct xdr_stream *xdr,
6583 struct compound_hdr hdr;
6586 status = decode_compound_hdr(xdr, &hdr);
6588 status = decode_exchange_id(xdr, res);
6593 * Decode CREATE_SESSION response
6595 static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp,
6596 struct xdr_stream *xdr,
6597 struct nfs41_create_session_res *res)
6599 struct compound_hdr hdr;
6602 status = decode_compound_hdr(xdr, &hdr);
6604 status = decode_create_session(xdr, res);
6609 * Decode DESTROY_SESSION response
6611 static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp,
6612 struct xdr_stream *xdr,
6615 struct compound_hdr hdr;
6618 status = decode_compound_hdr(xdr, &hdr);
6620 status = decode_destroy_session(xdr, res);
6625 * Decode SEQUENCE response
6627 static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp,
6628 struct xdr_stream *xdr,
6629 struct nfs4_sequence_res *res)
6631 struct compound_hdr hdr;
6634 status = decode_compound_hdr(xdr, &hdr);
6636 status = decode_sequence(xdr, res, rqstp);
6641 * Decode GET_LEASE_TIME response
6643 static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp,
6644 struct xdr_stream *xdr,
6645 struct nfs4_get_lease_time_res *res)
6647 struct compound_hdr hdr;
6650 status = decode_compound_hdr(xdr, &hdr);
6652 status = decode_sequence(xdr, &res->lr_seq_res, rqstp);
6654 status = decode_putrootfh(xdr);
6656 status = decode_fsinfo(xdr, res->lr_fsinfo);
6661 * Decode RECLAIM_COMPLETE response
6663 static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp,
6664 struct xdr_stream *xdr,
6665 struct nfs41_reclaim_complete_res *res)
6667 struct compound_hdr hdr;
6670 status = decode_compound_hdr(xdr, &hdr);
6672 status = decode_sequence(xdr, &res->seq_res, rqstp);
6674 status = decode_reclaim_complete(xdr, (void *)NULL);
6679 * Decode GETDEVICELIST response
6681 static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp,
6682 struct xdr_stream *xdr,
6683 struct nfs4_getdevicelist_res *res)
6685 struct compound_hdr hdr;
6688 dprintk("encoding getdevicelist!\n");
6690 status = decode_compound_hdr(xdr, &hdr);
6693 status = decode_sequence(xdr, &res->seq_res, rqstp);
6696 status = decode_putfh(xdr);
6699 status = decode_getdevicelist(xdr, res->devlist);
6705 * Decode GETDEVINFO response
6707 static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp,
6708 struct xdr_stream *xdr,
6709 struct nfs4_getdeviceinfo_res *res)
6711 struct compound_hdr hdr;
6714 status = decode_compound_hdr(xdr, &hdr);
6717 status = decode_sequence(xdr, &res->seq_res, rqstp);
6720 status = decode_getdeviceinfo(xdr, res->pdev);
6726 * Decode LAYOUTGET response
6728 static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp,
6729 struct xdr_stream *xdr,
6730 struct nfs4_layoutget_res *res)
6732 struct compound_hdr hdr;
6735 status = decode_compound_hdr(xdr, &hdr);
6738 status = decode_sequence(xdr, &res->seq_res, rqstp);
6741 status = decode_putfh(xdr);
6744 status = decode_layoutget(xdr, rqstp, res);
6750 * Decode LAYOUTRETURN response
6752 static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp,
6753 struct xdr_stream *xdr,
6754 struct nfs4_layoutreturn_res *res)
6756 struct compound_hdr hdr;
6759 status = decode_compound_hdr(xdr, &hdr);
6762 status = decode_sequence(xdr, &res->seq_res, rqstp);
6765 status = decode_putfh(xdr);
6768 status = decode_layoutreturn(xdr, res);
6774 * Decode LAYOUTCOMMIT response
6776 static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp,
6777 struct xdr_stream *xdr,
6778 struct nfs4_layoutcommit_res *res)
6780 struct compound_hdr hdr;
6783 status = decode_compound_hdr(xdr, &hdr);
6786 status = decode_sequence(xdr, &res->seq_res, rqstp);
6789 status = decode_putfh(xdr);
6792 status = decode_layoutcommit(xdr, rqstp, res);
6795 decode_getfattr(xdr, res->fattr, res->server);
6801 * Decode SECINFO_NO_NAME response
6803 static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp,
6804 struct xdr_stream *xdr,
6805 struct nfs4_secinfo_res *res)
6807 struct compound_hdr hdr;
6810 status = decode_compound_hdr(xdr, &hdr);
6813 status = decode_sequence(xdr, &res->seq_res, rqstp);
6816 status = decode_putrootfh(xdr);
6819 status = decode_secinfo(xdr, res);
6825 * Decode TEST_STATEID response
6827 static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp,
6828 struct xdr_stream *xdr,
6829 struct nfs41_test_stateid_res *res)
6831 struct compound_hdr hdr;
6834 status = decode_compound_hdr(xdr, &hdr);
6837 status = decode_sequence(xdr, &res->seq_res, rqstp);
6840 status = decode_test_stateid(xdr, res);
6846 * Decode FREE_STATEID response
6848 static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp,
6849 struct xdr_stream *xdr,
6850 struct nfs41_free_stateid_res *res)
6852 struct compound_hdr hdr;
6855 status = decode_compound_hdr(xdr, &hdr);
6858 status = decode_sequence(xdr, &res->seq_res, rqstp);
6861 status = decode_free_stateid(xdr, res);
6865 #endif /* CONFIG_NFS_V4_1 */
6868 * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in
6869 * the local page cache.
6870 * @xdr: XDR stream where entry resides
6871 * @entry: buffer to fill in with entry data
6872 * @plus: boolean indicating whether this should be a readdirplus entry
6874 * Returns zero if successful, otherwise a negative errno value is
6877 * This function is not invoked during READDIR reply decoding, but
6878 * rather whenever an application invokes the getdents(2) system call
6879 * on a directory already in our cache.
6881 int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
6884 uint32_t bitmap[3] = {0};
6886 __be32 *p = xdr_inline_decode(xdr, 4);
6889 if (*p == xdr_zero) {
6890 p = xdr_inline_decode(xdr, 4);
6899 p = xdr_inline_decode(xdr, 12);
6902 entry->prev_cookie = entry->cookie;
6903 p = xdr_decode_hyper(p, &entry->cookie);
6904 entry->len = be32_to_cpup(p);
6906 p = xdr_inline_decode(xdr, entry->len);
6909 entry->name = (const char *) p;
6912 * In case the server doesn't return an inode number,
6913 * we fake one here. (We don't use inode number 0,
6914 * since glibc seems to choke on it...)
6917 entry->fattr->valid = 0;
6919 if (decode_attr_bitmap(xdr, bitmap) < 0)
6922 if (decode_attr_length(xdr, &len, &p) < 0)
6925 if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh,
6926 NULL, entry->server) < 0)
6928 if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID)
6929 entry->ino = entry->fattr->mounted_on_fileid;
6930 else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID)
6931 entry->ino = entry->fattr->fileid;
6933 entry->d_type = DT_UNKNOWN;
6934 if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE)
6935 entry->d_type = nfs_umode_to_dtype(entry->fattr->mode);
6940 print_overflow_msg(__func__, xdr);
6945 * We need to translate between nfs status return values and
6946 * the local errno values which may not be the same.
6953 { NFS4ERR_PERM, -EPERM },
6954 { NFS4ERR_NOENT, -ENOENT },
6955 { NFS4ERR_IO, -errno_NFSERR_IO},
6956 { NFS4ERR_NXIO, -ENXIO },
6957 { NFS4ERR_ACCESS, -EACCES },
6958 { NFS4ERR_EXIST, -EEXIST },
6959 { NFS4ERR_XDEV, -EXDEV },
6960 { NFS4ERR_NOTDIR, -ENOTDIR },
6961 { NFS4ERR_ISDIR, -EISDIR },
6962 { NFS4ERR_INVAL, -EINVAL },
6963 { NFS4ERR_FBIG, -EFBIG },
6964 { NFS4ERR_NOSPC, -ENOSPC },
6965 { NFS4ERR_ROFS, -EROFS },
6966 { NFS4ERR_MLINK, -EMLINK },
6967 { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG },
6968 { NFS4ERR_NOTEMPTY, -ENOTEMPTY },
6969 { NFS4ERR_DQUOT, -EDQUOT },
6970 { NFS4ERR_STALE, -ESTALE },
6971 { NFS4ERR_BADHANDLE, -EBADHANDLE },
6972 { NFS4ERR_BAD_COOKIE, -EBADCOOKIE },
6973 { NFS4ERR_NOTSUPP, -ENOTSUPP },
6974 { NFS4ERR_TOOSMALL, -ETOOSMALL },
6975 { NFS4ERR_SERVERFAULT, -EREMOTEIO },
6976 { NFS4ERR_BADTYPE, -EBADTYPE },
6977 { NFS4ERR_LOCKED, -EAGAIN },
6978 { NFS4ERR_SYMLINK, -ELOOP },
6979 { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP },
6980 { NFS4ERR_DEADLOCK, -EDEADLK },
6985 * Convert an NFS error code to a local one.
6986 * This one is used jointly by NFSv2 and NFSv3.
6989 nfs4_stat_to_errno(int stat)
6992 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
6993 if (nfs_errtbl[i].stat == stat)
6994 return nfs_errtbl[i].errno;
6996 if (stat <= 10000 || stat > 10100) {
6997 /* The server is looney tunes. */
7000 /* If we cannot translate the error, the recovery routines should
7002 * Note: remaining NFSv4 error codes have values > 10000, so should
7003 * not conflict with native Linux error codes.
7008 #define PROC(proc, argtype, restype) \
7009 [NFSPROC4_CLNT_##proc] = { \
7010 .p_proc = NFSPROC4_COMPOUND, \
7011 .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \
7012 .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \
7013 .p_arglen = NFS4_##argtype##_sz, \
7014 .p_replen = NFS4_##restype##_sz, \
7015 .p_statidx = NFSPROC4_CLNT_##proc, \
7019 struct rpc_procinfo nfs4_procedures[] = {
7020 PROC(READ, enc_read, dec_read),
7021 PROC(WRITE, enc_write, dec_write),
7022 PROC(COMMIT, enc_commit, dec_commit),
7023 PROC(OPEN, enc_open, dec_open),
7024 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
7025 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
7026 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
7027 PROC(CLOSE, enc_close, dec_close),
7028 PROC(SETATTR, enc_setattr, dec_setattr),
7029 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
7030 PROC(RENEW, enc_renew, dec_renew),
7031 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
7032 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
7033 PROC(LOCK, enc_lock, dec_lock),
7034 PROC(LOCKT, enc_lockt, dec_lockt),
7035 PROC(LOCKU, enc_locku, dec_locku),
7036 PROC(ACCESS, enc_access, dec_access),
7037 PROC(GETATTR, enc_getattr, dec_getattr),
7038 PROC(LOOKUP, enc_lookup, dec_lookup),
7039 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
7040 PROC(REMOVE, enc_remove, dec_remove),
7041 PROC(RENAME, enc_rename, dec_rename),
7042 PROC(LINK, enc_link, dec_link),
7043 PROC(SYMLINK, enc_symlink, dec_symlink),
7044 PROC(CREATE, enc_create, dec_create),
7045 PROC(PATHCONF, enc_pathconf, dec_pathconf),
7046 PROC(STATFS, enc_statfs, dec_statfs),
7047 PROC(READLINK, enc_readlink, dec_readlink),
7048 PROC(READDIR, enc_readdir, dec_readdir),
7049 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
7050 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
7051 PROC(GETACL, enc_getacl, dec_getacl),
7052 PROC(SETACL, enc_setacl, dec_setacl),
7053 PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
7054 PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner),
7055 PROC(SECINFO, enc_secinfo, dec_secinfo),
7056 #if defined(CONFIG_NFS_V4_1)
7057 PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
7058 PROC(CREATE_SESSION, enc_create_session, dec_create_session),
7059 PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session),
7060 PROC(SEQUENCE, enc_sequence, dec_sequence),
7061 PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time),
7062 PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete),
7063 PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo),
7064 PROC(LAYOUTGET, enc_layoutget, dec_layoutget),
7065 PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit),
7066 PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn),
7067 PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name),
7068 PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid),
7069 PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid),
7070 PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist),
7071 #endif /* CONFIG_NFS_V4_1 */
7074 const struct rpc_version nfs_version4 = {
7076 .nrprocs = ARRAY_SIZE(nfs4_procedures),
7077 .procs = nfs4_procedures