4 * Client-side XDR for NFSv4.
6 * Copyright (c) 2002 The Regents of the University of Michigan.
9 * Kendrick Smith <kmsmith@umich.edu>
10 * Andy Adamson <andros@umich.edu>
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of the University nor the names of its
22 * contributors may be used to endorse or promote products derived
23 * from this software without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
27 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
28 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
32 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
34 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 #include <linux/param.h>
39 #include <linux/time.h>
41 #include <linux/errno.h>
42 #include <linux/string.h>
44 #include <linux/pagemap.h>
45 #include <linux/proc_fs.h>
46 #include <linux/kdev_t.h>
47 #include <linux/sunrpc/clnt.h>
48 #include <linux/sunrpc/msg_prot.h>
49 #include <linux/sunrpc/gss_api.h>
50 #include <linux/nfs.h>
51 #include <linux/nfs4.h>
52 #include <linux/nfs_fs.h>
53 #include <linux/nfs_idmap.h>
58 #define NFSDBG_FACILITY NFSDBG_XDR
60 /* Mapping from NFS error code to "errno" error code. */
61 #define errno_NFSERR_IO EIO
63 static int nfs4_stat_to_errno(int);
65 /* NFSv4 COMPOUND tags are only wanted for debugging purposes */
67 #define NFS4_MAXTAGLEN 20
69 #define NFS4_MAXTAGLEN 0
72 /* lock,open owner id:
73 * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
75 #define open_owner_id_maxsz (1 + 1 + 4)
76 #define lock_owner_id_maxsz (1 + 1 + 4)
77 #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
78 #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
79 #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
80 #define op_encode_hdr_maxsz (1)
81 #define op_decode_hdr_maxsz (2)
82 #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
83 #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
84 #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
85 #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
86 #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
88 #define decode_putfh_maxsz (op_decode_hdr_maxsz)
89 #define encode_putrootfh_maxsz (op_encode_hdr_maxsz)
90 #define decode_putrootfh_maxsz (op_decode_hdr_maxsz)
91 #define encode_getfh_maxsz (op_encode_hdr_maxsz)
92 #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
93 ((3+NFS4_FHSIZE) >> 2))
94 #define nfs4_fattr_bitmap_maxsz 4
95 #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
96 #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
97 #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
98 #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
99 #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
100 /* This is based on getfattr, which uses the most attributes: */
101 #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
102 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz))
103 #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
104 nfs4_fattr_value_maxsz)
105 #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
106 #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
111 #define encode_savefh_maxsz (op_encode_hdr_maxsz)
112 #define decode_savefh_maxsz (op_decode_hdr_maxsz)
113 #define encode_restorefh_maxsz (op_encode_hdr_maxsz)
114 #define decode_restorefh_maxsz (op_decode_hdr_maxsz)
115 #define encode_fsinfo_maxsz (encode_getattr_maxsz)
116 /* The 5 accounts for the PNFS attributes, and assumes that at most three
117 * layout types will be returned.
119 #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \
120 nfs4_fattr_bitmap_maxsz + 4 + 8 + 5)
121 #define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
122 #define decode_renew_maxsz (op_decode_hdr_maxsz)
123 #define encode_setclientid_maxsz \
124 (op_encode_hdr_maxsz + \
125 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
126 XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \
128 XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
129 XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
131 #define decode_setclientid_maxsz \
132 (op_decode_hdr_maxsz + \
134 1024) /* large value for CLID_INUSE */
135 #define encode_setclientid_confirm_maxsz \
136 (op_encode_hdr_maxsz + \
137 3 + (NFS4_VERIFIER_SIZE >> 2))
138 #define decode_setclientid_confirm_maxsz \
139 (op_decode_hdr_maxsz)
140 #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
141 #define decode_lookup_maxsz (op_decode_hdr_maxsz)
142 #define encode_share_access_maxsz \
144 #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
145 #define encode_opentype_maxsz (1 + encode_createmode_maxsz)
146 #define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
147 #define encode_open_maxsz (op_encode_hdr_maxsz + \
148 2 + encode_share_access_maxsz + 2 + \
149 open_owner_id_maxsz + \
150 encode_opentype_maxsz + \
151 encode_claim_null_maxsz)
152 #define decode_ace_maxsz (3 + nfs4_owner_maxsz)
153 #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
155 #define decode_change_info_maxsz (5)
156 #define decode_open_maxsz (op_decode_hdr_maxsz + \
157 decode_stateid_maxsz + \
158 decode_change_info_maxsz + 1 + \
159 nfs4_fattr_bitmap_maxsz + \
160 decode_delegation_maxsz)
161 #define encode_open_confirm_maxsz \
162 (op_encode_hdr_maxsz + \
163 encode_stateid_maxsz + 1)
164 #define decode_open_confirm_maxsz \
165 (op_decode_hdr_maxsz + \
166 decode_stateid_maxsz)
167 #define encode_open_downgrade_maxsz \
168 (op_encode_hdr_maxsz + \
169 encode_stateid_maxsz + 1 + \
170 encode_share_access_maxsz)
171 #define decode_open_downgrade_maxsz \
172 (op_decode_hdr_maxsz + \
173 decode_stateid_maxsz)
174 #define encode_close_maxsz (op_encode_hdr_maxsz + \
175 1 + encode_stateid_maxsz)
176 #define decode_close_maxsz (op_decode_hdr_maxsz + \
177 decode_stateid_maxsz)
178 #define encode_setattr_maxsz (op_encode_hdr_maxsz + \
179 encode_stateid_maxsz + \
181 #define decode_setattr_maxsz (op_decode_hdr_maxsz + \
182 nfs4_fattr_bitmap_maxsz)
183 #define encode_read_maxsz (op_encode_hdr_maxsz + \
184 encode_stateid_maxsz + 3)
185 #define decode_read_maxsz (op_decode_hdr_maxsz + 2)
186 #define encode_readdir_maxsz (op_encode_hdr_maxsz + \
187 2 + encode_verifier_maxsz + 5)
188 #define decode_readdir_maxsz (op_decode_hdr_maxsz + \
189 decode_verifier_maxsz)
190 #define encode_readlink_maxsz (op_encode_hdr_maxsz)
191 #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1)
192 #define encode_write_maxsz (op_encode_hdr_maxsz + \
193 encode_stateid_maxsz + 4)
194 #define decode_write_maxsz (op_decode_hdr_maxsz + \
195 2 + decode_verifier_maxsz)
196 #define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
197 #define decode_commit_maxsz (op_decode_hdr_maxsz + \
198 decode_verifier_maxsz)
199 #define encode_remove_maxsz (op_encode_hdr_maxsz + \
201 #define decode_remove_maxsz (op_decode_hdr_maxsz + \
202 decode_change_info_maxsz)
203 #define encode_rename_maxsz (op_encode_hdr_maxsz + \
205 #define decode_rename_maxsz (op_decode_hdr_maxsz + \
206 decode_change_info_maxsz + \
207 decode_change_info_maxsz)
208 #define encode_link_maxsz (op_encode_hdr_maxsz + \
210 #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
211 #define encode_lockowner_maxsz (7)
212 #define encode_lock_maxsz (op_encode_hdr_maxsz + \
214 1 + encode_stateid_maxsz + 1 + \
215 encode_lockowner_maxsz)
216 #define decode_lock_denied_maxsz \
217 (8 + decode_lockowner_maxsz)
218 #define decode_lock_maxsz (op_decode_hdr_maxsz + \
219 decode_lock_denied_maxsz)
220 #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
221 encode_lockowner_maxsz)
222 #define decode_lockt_maxsz (op_decode_hdr_maxsz + \
223 decode_lock_denied_maxsz)
224 #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
225 encode_stateid_maxsz + \
227 #define decode_locku_maxsz (op_decode_hdr_maxsz + \
228 decode_stateid_maxsz)
229 #define encode_release_lockowner_maxsz \
230 (op_encode_hdr_maxsz + \
231 encode_lockowner_maxsz)
232 #define decode_release_lockowner_maxsz \
233 (op_decode_hdr_maxsz)
234 #define encode_access_maxsz (op_encode_hdr_maxsz + 1)
235 #define decode_access_maxsz (op_decode_hdr_maxsz + 2)
236 #define encode_symlink_maxsz (op_encode_hdr_maxsz + \
237 1 + nfs4_name_maxsz + \
240 #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
241 #define encode_create_maxsz (op_encode_hdr_maxsz + \
242 1 + 2 + nfs4_name_maxsz + \
244 #define decode_create_maxsz (op_decode_hdr_maxsz + \
245 decode_change_info_maxsz + \
246 nfs4_fattr_bitmap_maxsz)
247 #define encode_statfs_maxsz (encode_getattr_maxsz)
248 #define decode_statfs_maxsz (decode_getattr_maxsz)
249 #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
250 #define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
251 #define encode_getacl_maxsz (encode_getattr_maxsz)
252 #define decode_getacl_maxsz (op_decode_hdr_maxsz + \
253 nfs4_fattr_bitmap_maxsz + 1)
254 #define encode_setacl_maxsz (op_encode_hdr_maxsz + \
255 encode_stateid_maxsz + 3)
256 #define decode_setacl_maxsz (decode_setattr_maxsz)
257 #define encode_fs_locations_maxsz \
258 (encode_getattr_maxsz)
259 #define decode_fs_locations_maxsz \
261 #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
262 #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4))
264 #if defined(CONFIG_NFS_V4_1)
265 #define NFS4_MAX_MACHINE_NAME_LEN (64)
267 #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
268 encode_verifier_maxsz + \
269 1 /* co_ownerid.len */ + \
270 XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \
273 0 /* SP4_NONE (for now) */ + \
274 1 /* zero implemetation id array */)
275 #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
276 2 /* eir_clientid */ + \
277 1 /* eir_sequenceid */ + \
278 1 /* eir_flags */ + \
280 0 /* SP4_NONE (for now) */ + \
281 2 /* eir_server_owner.so_minor_id */ + \
282 /* eir_server_owner.so_major_id<> */ \
283 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
284 /* eir_server_scope<> */ \
285 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
286 1 /* eir_server_impl_id array length */ + \
287 0 /* ignored eir_server_impl_id contents */)
288 #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
289 #define decode_channel_attrs_maxsz (6 + \
290 1 /* ca_rdma_ird.len */ + \
292 #define encode_create_session_maxsz (op_encode_hdr_maxsz + \
293 2 /* csa_clientid */ + \
294 1 /* csa_sequence */ + \
295 1 /* csa_flags */ + \
296 encode_channel_attrs_maxsz + \
297 encode_channel_attrs_maxsz + \
298 1 /* csa_cb_program */ + \
299 1 /* csa_sec_parms.len (1) */ + \
300 1 /* cb_secflavor (AUTH_SYS) */ + \
302 1 /* machinename.len */ + \
303 XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
306 1 /* gids.len (0) */)
307 #define decode_create_session_maxsz (op_decode_hdr_maxsz + \
308 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
309 1 /* csr_sequence */ + \
310 1 /* csr_flags */ + \
311 decode_channel_attrs_maxsz + \
312 decode_channel_attrs_maxsz)
313 #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
314 #define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
315 #define encode_sequence_maxsz (op_encode_hdr_maxsz + \
316 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
317 #define decode_sequence_maxsz (op_decode_hdr_maxsz + \
318 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
319 #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
320 #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
321 #define encode_getdevicelist_maxsz (op_encode_hdr_maxsz + 4 + \
322 encode_verifier_maxsz)
323 #define decode_getdevicelist_maxsz (op_decode_hdr_maxsz + \
324 2 /* nfs_cookie4 gdlr_cookie */ + \
325 decode_verifier_maxsz \
326 /* verifier4 gdlr_verifier */ + \
327 1 /* gdlr_deviceid_list count */ + \
328 XDR_QUADLEN(NFS4_PNFS_GETDEVLIST_MAXNUM * \
329 NFS4_DEVICEID4_SIZE) \
330 /* gdlr_deviceid_list */ + \
331 1 /* bool gdlr_eof */)
332 #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \
333 XDR_QUADLEN(NFS4_DEVICEID4_SIZE))
334 #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \
335 1 /* layout type */ + \
336 1 /* opaque devaddr4 length */ + \
337 /* devaddr4 payload is read into page */ \
338 1 /* notification bitmap length */ + \
339 1 /* notification bitmap */)
340 #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \
341 encode_stateid_maxsz)
342 #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \
343 decode_stateid_maxsz + \
344 XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE))
345 #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \
349 encode_stateid_maxsz + \
350 1 /* new offset (true) */ + \
351 2 /* last byte written */ + \
352 1 /* nt_timechanged (false) */ + \
353 1 /* layoutupdate4 layout type */ + \
354 1 /* NULL filelayout layoutupdate4 payload */)
355 #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3)
356 #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \
357 encode_stateid_maxsz + \
358 1 /* FIXME: opaque lrf_body always empty at the moment */)
359 #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \
360 1 + decode_stateid_maxsz)
361 #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1)
362 #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz
363 #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \
364 XDR_QUADLEN(NFS4_STATEID_SIZE))
365 #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1)
366 #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \
367 XDR_QUADLEN(NFS4_STATEID_SIZE))
368 #define decode_free_stateid_maxsz (op_decode_hdr_maxsz + 1)
369 #else /* CONFIG_NFS_V4_1 */
370 #define encode_sequence_maxsz 0
371 #define decode_sequence_maxsz 0
372 #endif /* CONFIG_NFS_V4_1 */
374 #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
375 #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
376 #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
377 encode_sequence_maxsz + \
378 encode_putfh_maxsz + \
380 #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
381 decode_sequence_maxsz + \
382 decode_putfh_maxsz + \
384 #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
385 encode_sequence_maxsz + \
386 encode_putfh_maxsz + \
387 encode_readlink_maxsz)
388 #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
389 decode_sequence_maxsz + \
390 decode_putfh_maxsz + \
391 decode_readlink_maxsz)
392 #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
393 encode_sequence_maxsz + \
394 encode_putfh_maxsz + \
395 encode_readdir_maxsz)
396 #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
397 decode_sequence_maxsz + \
398 decode_putfh_maxsz + \
399 decode_readdir_maxsz)
400 #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
401 encode_sequence_maxsz + \
402 encode_putfh_maxsz + \
403 encode_write_maxsz + \
404 encode_getattr_maxsz)
405 #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
406 decode_sequence_maxsz + \
407 decode_putfh_maxsz + \
408 decode_write_maxsz + \
409 decode_getattr_maxsz)
410 #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
411 encode_sequence_maxsz + \
412 encode_putfh_maxsz + \
413 encode_commit_maxsz + \
414 encode_getattr_maxsz)
415 #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
416 decode_sequence_maxsz + \
417 decode_putfh_maxsz + \
418 decode_commit_maxsz + \
419 decode_getattr_maxsz)
420 #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
421 encode_sequence_maxsz + \
422 encode_putfh_maxsz + \
423 encode_savefh_maxsz + \
424 encode_open_maxsz + \
425 encode_getfh_maxsz + \
426 encode_getattr_maxsz + \
427 encode_restorefh_maxsz + \
428 encode_getattr_maxsz)
429 #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
430 decode_sequence_maxsz + \
431 decode_putfh_maxsz + \
432 decode_savefh_maxsz + \
433 decode_open_maxsz + \
434 decode_getfh_maxsz + \
435 decode_getattr_maxsz + \
436 decode_restorefh_maxsz + \
437 decode_getattr_maxsz)
438 #define NFS4_enc_open_confirm_sz \
439 (compound_encode_hdr_maxsz + \
440 encode_putfh_maxsz + \
441 encode_open_confirm_maxsz)
442 #define NFS4_dec_open_confirm_sz \
443 (compound_decode_hdr_maxsz + \
444 decode_putfh_maxsz + \
445 decode_open_confirm_maxsz)
446 #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
447 encode_sequence_maxsz + \
448 encode_putfh_maxsz + \
449 encode_open_maxsz + \
450 encode_getattr_maxsz)
451 #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
452 decode_sequence_maxsz + \
453 decode_putfh_maxsz + \
454 decode_open_maxsz + \
455 decode_getattr_maxsz)
456 #define NFS4_enc_open_downgrade_sz \
457 (compound_encode_hdr_maxsz + \
458 encode_sequence_maxsz + \
459 encode_putfh_maxsz + \
460 encode_open_downgrade_maxsz + \
461 encode_getattr_maxsz)
462 #define NFS4_dec_open_downgrade_sz \
463 (compound_decode_hdr_maxsz + \
464 decode_sequence_maxsz + \
465 decode_putfh_maxsz + \
466 decode_open_downgrade_maxsz + \
467 decode_getattr_maxsz)
468 #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
469 encode_sequence_maxsz + \
470 encode_putfh_maxsz + \
471 encode_close_maxsz + \
472 encode_getattr_maxsz)
473 #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
474 decode_sequence_maxsz + \
475 decode_putfh_maxsz + \
476 decode_close_maxsz + \
477 decode_getattr_maxsz)
478 #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
479 encode_sequence_maxsz + \
480 encode_putfh_maxsz + \
481 encode_setattr_maxsz + \
482 encode_getattr_maxsz)
483 #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
484 decode_sequence_maxsz + \
485 decode_putfh_maxsz + \
486 decode_setattr_maxsz + \
487 decode_getattr_maxsz)
488 #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
489 encode_sequence_maxsz + \
490 encode_putfh_maxsz + \
492 #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
493 decode_sequence_maxsz + \
494 decode_putfh_maxsz + \
496 #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
498 #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
500 #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
501 encode_setclientid_maxsz)
502 #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
503 decode_setclientid_maxsz)
504 #define NFS4_enc_setclientid_confirm_sz \
505 (compound_encode_hdr_maxsz + \
506 encode_setclientid_confirm_maxsz + \
507 encode_putrootfh_maxsz + \
509 #define NFS4_dec_setclientid_confirm_sz \
510 (compound_decode_hdr_maxsz + \
511 decode_setclientid_confirm_maxsz + \
512 decode_putrootfh_maxsz + \
514 #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
515 encode_sequence_maxsz + \
516 encode_putfh_maxsz + \
518 #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
519 decode_sequence_maxsz + \
520 decode_putfh_maxsz + \
522 #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
523 encode_sequence_maxsz + \
524 encode_putfh_maxsz + \
526 #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
527 decode_sequence_maxsz + \
528 decode_putfh_maxsz + \
530 #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
531 encode_sequence_maxsz + \
532 encode_putfh_maxsz + \
534 #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
535 decode_sequence_maxsz + \
536 decode_putfh_maxsz + \
538 #define NFS4_enc_release_lockowner_sz \
539 (compound_encode_hdr_maxsz + \
540 encode_lockowner_maxsz)
541 #define NFS4_dec_release_lockowner_sz \
542 (compound_decode_hdr_maxsz + \
543 decode_lockowner_maxsz)
544 #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
545 encode_sequence_maxsz + \
546 encode_putfh_maxsz + \
547 encode_access_maxsz + \
548 encode_getattr_maxsz)
549 #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
550 decode_sequence_maxsz + \
551 decode_putfh_maxsz + \
552 decode_access_maxsz + \
553 decode_getattr_maxsz)
554 #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
555 encode_sequence_maxsz + \
556 encode_putfh_maxsz + \
557 encode_getattr_maxsz)
558 #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
559 decode_sequence_maxsz + \
560 decode_putfh_maxsz + \
561 decode_getattr_maxsz)
562 #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
563 encode_sequence_maxsz + \
564 encode_putfh_maxsz + \
565 encode_lookup_maxsz + \
566 encode_getattr_maxsz + \
568 #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
569 decode_sequence_maxsz + \
570 decode_putfh_maxsz + \
571 decode_lookup_maxsz + \
572 decode_getattr_maxsz + \
574 #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
575 encode_sequence_maxsz + \
576 encode_putrootfh_maxsz + \
577 encode_getattr_maxsz + \
579 #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
580 decode_sequence_maxsz + \
581 decode_putrootfh_maxsz + \
582 decode_getattr_maxsz + \
584 #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
585 encode_sequence_maxsz + \
586 encode_putfh_maxsz + \
587 encode_remove_maxsz + \
588 encode_getattr_maxsz)
589 #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
590 decode_sequence_maxsz + \
591 decode_putfh_maxsz + \
592 decode_remove_maxsz + \
593 decode_getattr_maxsz)
594 #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
595 encode_sequence_maxsz + \
596 encode_putfh_maxsz + \
597 encode_savefh_maxsz + \
598 encode_putfh_maxsz + \
599 encode_rename_maxsz + \
600 encode_getattr_maxsz + \
601 encode_restorefh_maxsz + \
602 encode_getattr_maxsz)
603 #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
604 decode_sequence_maxsz + \
605 decode_putfh_maxsz + \
606 decode_savefh_maxsz + \
607 decode_putfh_maxsz + \
608 decode_rename_maxsz + \
609 decode_getattr_maxsz + \
610 decode_restorefh_maxsz + \
611 decode_getattr_maxsz)
612 #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
613 encode_sequence_maxsz + \
614 encode_putfh_maxsz + \
615 encode_savefh_maxsz + \
616 encode_putfh_maxsz + \
617 encode_link_maxsz + \
618 decode_getattr_maxsz + \
619 encode_restorefh_maxsz + \
620 decode_getattr_maxsz)
621 #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
622 decode_sequence_maxsz + \
623 decode_putfh_maxsz + \
624 decode_savefh_maxsz + \
625 decode_putfh_maxsz + \
626 decode_link_maxsz + \
627 decode_getattr_maxsz + \
628 decode_restorefh_maxsz + \
629 decode_getattr_maxsz)
630 #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
631 encode_sequence_maxsz + \
632 encode_putfh_maxsz + \
633 encode_symlink_maxsz + \
634 encode_getattr_maxsz + \
636 #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
637 decode_sequence_maxsz + \
638 decode_putfh_maxsz + \
639 decode_symlink_maxsz + \
640 decode_getattr_maxsz + \
642 #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
643 encode_sequence_maxsz + \
644 encode_putfh_maxsz + \
645 encode_savefh_maxsz + \
646 encode_create_maxsz + \
647 encode_getfh_maxsz + \
648 encode_getattr_maxsz + \
649 encode_restorefh_maxsz + \
650 encode_getattr_maxsz)
651 #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
652 decode_sequence_maxsz + \
653 decode_putfh_maxsz + \
654 decode_savefh_maxsz + \
655 decode_create_maxsz + \
656 decode_getfh_maxsz + \
657 decode_getattr_maxsz + \
658 decode_restorefh_maxsz + \
659 decode_getattr_maxsz)
660 #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
661 encode_sequence_maxsz + \
662 encode_putfh_maxsz + \
663 encode_getattr_maxsz)
664 #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
665 decode_sequence_maxsz + \
666 decode_putfh_maxsz + \
667 decode_getattr_maxsz)
668 #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
669 encode_sequence_maxsz + \
670 encode_putfh_maxsz + \
672 #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
673 decode_sequence_maxsz + \
674 decode_putfh_maxsz + \
676 #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
677 encode_sequence_maxsz + \
678 encode_putfh_maxsz + \
679 encode_getattr_maxsz)
680 #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
681 decode_sequence_maxsz + \
682 decode_putfh_maxsz + \
683 decode_getattr_maxsz)
684 #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
685 encode_sequence_maxsz + \
686 encode_putfh_maxsz + \
687 encode_delegreturn_maxsz + \
688 encode_getattr_maxsz)
689 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
690 decode_sequence_maxsz + \
691 decode_delegreturn_maxsz + \
692 decode_getattr_maxsz)
693 #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
694 encode_sequence_maxsz + \
695 encode_putfh_maxsz + \
697 #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
698 decode_sequence_maxsz + \
699 decode_putfh_maxsz + \
701 #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
702 encode_sequence_maxsz + \
703 encode_putfh_maxsz + \
705 #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
706 decode_sequence_maxsz + \
707 decode_putfh_maxsz + \
709 #define NFS4_enc_fs_locations_sz \
710 (compound_encode_hdr_maxsz + \
711 encode_sequence_maxsz + \
712 encode_putfh_maxsz + \
713 encode_lookup_maxsz + \
714 encode_fs_locations_maxsz)
715 #define NFS4_dec_fs_locations_sz \
716 (compound_decode_hdr_maxsz + \
717 decode_sequence_maxsz + \
718 decode_putfh_maxsz + \
719 decode_lookup_maxsz + \
720 decode_fs_locations_maxsz)
721 #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \
722 encode_sequence_maxsz + \
723 encode_putfh_maxsz + \
724 encode_secinfo_maxsz)
725 #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \
726 decode_sequence_maxsz + \
727 decode_putfh_maxsz + \
728 decode_secinfo_maxsz)
729 #if defined(CONFIG_NFS_V4_1)
730 #define NFS4_enc_exchange_id_sz \
731 (compound_encode_hdr_maxsz + \
732 encode_exchange_id_maxsz)
733 #define NFS4_dec_exchange_id_sz \
734 (compound_decode_hdr_maxsz + \
735 decode_exchange_id_maxsz)
736 #define NFS4_enc_create_session_sz \
737 (compound_encode_hdr_maxsz + \
738 encode_create_session_maxsz)
739 #define NFS4_dec_create_session_sz \
740 (compound_decode_hdr_maxsz + \
741 decode_create_session_maxsz)
742 #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
743 encode_destroy_session_maxsz)
744 #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
745 decode_destroy_session_maxsz)
746 #define NFS4_enc_sequence_sz \
747 (compound_decode_hdr_maxsz + \
748 encode_sequence_maxsz)
749 #define NFS4_dec_sequence_sz \
750 (compound_decode_hdr_maxsz + \
751 decode_sequence_maxsz)
752 #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
753 encode_sequence_maxsz + \
754 encode_putrootfh_maxsz + \
756 #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
757 decode_sequence_maxsz + \
758 decode_putrootfh_maxsz + \
760 #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
761 encode_sequence_maxsz + \
762 encode_reclaim_complete_maxsz)
763 #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
764 decode_sequence_maxsz + \
765 decode_reclaim_complete_maxsz)
766 #define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \
767 encode_sequence_maxsz + \
768 encode_putfh_maxsz + \
769 encode_getdevicelist_maxsz)
770 #define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \
771 decode_sequence_maxsz + \
772 decode_putfh_maxsz + \
773 decode_getdevicelist_maxsz)
774 #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \
775 encode_sequence_maxsz +\
776 encode_getdeviceinfo_maxsz)
777 #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \
778 decode_sequence_maxsz + \
779 decode_getdeviceinfo_maxsz)
780 #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \
781 encode_sequence_maxsz + \
782 encode_putfh_maxsz + \
783 encode_layoutget_maxsz)
784 #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \
785 decode_sequence_maxsz + \
786 decode_putfh_maxsz + \
787 decode_layoutget_maxsz)
788 #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \
789 encode_sequence_maxsz +\
790 encode_putfh_maxsz + \
791 encode_layoutcommit_maxsz + \
792 encode_getattr_maxsz)
793 #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \
794 decode_sequence_maxsz + \
795 decode_putfh_maxsz + \
796 decode_layoutcommit_maxsz + \
797 decode_getattr_maxsz)
798 #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \
799 encode_sequence_maxsz + \
800 encode_putfh_maxsz + \
801 encode_layoutreturn_maxsz)
802 #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \
803 decode_sequence_maxsz + \
804 decode_putfh_maxsz + \
805 decode_layoutreturn_maxsz)
806 #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \
807 encode_sequence_maxsz + \
808 encode_putrootfh_maxsz +\
809 encode_secinfo_no_name_maxsz)
810 #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \
811 decode_sequence_maxsz + \
812 decode_putrootfh_maxsz + \
813 decode_secinfo_no_name_maxsz)
814 #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \
815 encode_sequence_maxsz + \
816 encode_test_stateid_maxsz)
817 #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \
818 decode_sequence_maxsz + \
819 decode_test_stateid_maxsz)
820 #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \
821 encode_sequence_maxsz + \
822 encode_free_stateid_maxsz)
823 #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \
824 decode_sequence_maxsz + \
825 decode_free_stateid_maxsz)
827 const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
828 compound_encode_hdr_maxsz +
829 encode_sequence_maxsz +
831 encode_getattr_maxsz) *
834 const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
835 compound_decode_hdr_maxsz +
836 decode_sequence_maxsz +
837 decode_putfh_maxsz) *
839 #endif /* CONFIG_NFS_V4_1 */
841 static const umode_t nfs_type2fmt[] = {
848 [NF4SOCK] = S_IFSOCK,
854 struct compound_hdr {
860 uint32_t replen; /* expected reply words */
864 static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes)
866 __be32 *p = xdr_reserve_space(xdr, nbytes);
871 static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
875 p = xdr_reserve_space(xdr, 4 + len);
877 xdr_encode_opaque(p, str, len);
880 static void encode_compound_hdr(struct xdr_stream *xdr,
881 struct rpc_rqst *req,
882 struct compound_hdr *hdr)
885 struct rpc_auth *auth = req->rq_cred->cr_auth;
887 /* initialize running count of expected bytes in reply.
888 * NOTE: the replied tag SHOULD be the same is the one sent,
889 * but this is not required as a MUST for the server to do so. */
890 hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen;
892 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag);
893 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN);
894 p = reserve_space(xdr, 4 + hdr->taglen + 8);
895 p = xdr_encode_opaque(p, hdr->tag, hdr->taglen);
896 *p++ = cpu_to_be32(hdr->minorversion);
898 *p = cpu_to_be32(hdr->nops);
901 static void encode_nops(struct compound_hdr *hdr)
903 BUG_ON(hdr->nops > NFS4_MAX_OPS);
904 *hdr->nops_p = htonl(hdr->nops);
907 static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
911 p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE);
913 xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE);
916 static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
918 char owner_name[IDMAP_NAMESZ];
919 char owner_group[IDMAP_NAMESZ];
920 int owner_namelen = 0;
921 int owner_grouplen = 0;
929 * We reserve enough space to write the entire attribute buffer at once.
930 * In the worst-case, this would be
931 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
932 * = 36 bytes, plus any contribution from variable-length fields
933 * such as owner/group.
938 if (iap->ia_valid & ATTR_SIZE)
940 if (iap->ia_valid & ATTR_MODE)
942 if (iap->ia_valid & ATTR_UID) {
943 owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ);
944 if (owner_namelen < 0) {
945 dprintk("nfs: couldn't resolve uid %d to string\n",
948 strcpy(owner_name, "nobody");
949 owner_namelen = sizeof("nobody") - 1;
952 len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
954 if (iap->ia_valid & ATTR_GID) {
955 owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ);
956 if (owner_grouplen < 0) {
957 dprintk("nfs: couldn't resolve gid %d to string\n",
959 strcpy(owner_group, "nobody");
960 owner_grouplen = sizeof("nobody") - 1;
963 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
965 if (iap->ia_valid & ATTR_ATIME_SET)
967 else if (iap->ia_valid & ATTR_ATIME)
969 if (iap->ia_valid & ATTR_MTIME_SET)
971 else if (iap->ia_valid & ATTR_MTIME)
973 p = reserve_space(xdr, len);
976 * We write the bitmap length now, but leave the bitmap and the attribute
977 * buffer length to be backfilled at the end of this routine.
979 *p++ = cpu_to_be32(2);
983 if (iap->ia_valid & ATTR_SIZE) {
984 bmval0 |= FATTR4_WORD0_SIZE;
985 p = xdr_encode_hyper(p, iap->ia_size);
987 if (iap->ia_valid & ATTR_MODE) {
988 bmval1 |= FATTR4_WORD1_MODE;
989 *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
991 if (iap->ia_valid & ATTR_UID) {
992 bmval1 |= FATTR4_WORD1_OWNER;
993 p = xdr_encode_opaque(p, owner_name, owner_namelen);
995 if (iap->ia_valid & ATTR_GID) {
996 bmval1 |= FATTR4_WORD1_OWNER_GROUP;
997 p = xdr_encode_opaque(p, owner_group, owner_grouplen);
999 if (iap->ia_valid & ATTR_ATIME_SET) {
1000 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
1001 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
1002 *p++ = cpu_to_be32(0);
1003 *p++ = cpu_to_be32(iap->ia_atime.tv_sec);
1004 *p++ = cpu_to_be32(iap->ia_atime.tv_nsec);
1006 else if (iap->ia_valid & ATTR_ATIME) {
1007 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
1008 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
1010 if (iap->ia_valid & ATTR_MTIME_SET) {
1011 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
1012 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
1013 *p++ = cpu_to_be32(0);
1014 *p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
1015 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
1017 else if (iap->ia_valid & ATTR_MTIME) {
1018 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
1019 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
1023 * Now we backfill the bitmap and the attribute buffer length.
1025 if (len != ((char *)p - (char *)q) + 4) {
1026 printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n",
1027 len, ((char *)p - (char *)q) + 4);
1030 len = (char *)p - (char *)q - 12;
1031 *q++ = htonl(bmval0);
1032 *q++ = htonl(bmval1);
1038 static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr)
1042 p = reserve_space(xdr, 8);
1043 *p++ = cpu_to_be32(OP_ACCESS);
1044 *p = cpu_to_be32(access);
1046 hdr->replen += decode_access_maxsz;
1049 static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
1053 p = reserve_space(xdr, 8+NFS4_STATEID_SIZE);
1054 *p++ = cpu_to_be32(OP_CLOSE);
1055 *p++ = cpu_to_be32(arg->seqid->sequence->counter);
1056 xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
1058 hdr->replen += decode_close_maxsz;
1061 static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
1065 p = reserve_space(xdr, 16);
1066 *p++ = cpu_to_be32(OP_COMMIT);
1067 p = xdr_encode_hyper(p, args->offset);
1068 *p = cpu_to_be32(args->count);
1070 hdr->replen += decode_commit_maxsz;
1073 static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr)
1077 p = reserve_space(xdr, 8);
1078 *p++ = cpu_to_be32(OP_CREATE);
1079 *p = cpu_to_be32(create->ftype);
1081 switch (create->ftype) {
1083 p = reserve_space(xdr, 4);
1084 *p = cpu_to_be32(create->u.symlink.len);
1085 xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len);
1088 case NF4BLK: case NF4CHR:
1089 p = reserve_space(xdr, 8);
1090 *p++ = cpu_to_be32(create->u.device.specdata1);
1091 *p = cpu_to_be32(create->u.device.specdata2);
1098 encode_string(xdr, create->name->len, create->name->name);
1100 hdr->replen += decode_create_maxsz;
1102 encode_attrs(xdr, create->attrs, create->server);
1105 static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr)
1109 p = reserve_space(xdr, 12);
1110 *p++ = cpu_to_be32(OP_GETATTR);
1111 *p++ = cpu_to_be32(1);
1112 *p = cpu_to_be32(bitmap);
1114 hdr->replen += decode_getattr_maxsz;
1117 static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr)
1121 p = reserve_space(xdr, 16);
1122 *p++ = cpu_to_be32(OP_GETATTR);
1123 *p++ = cpu_to_be32(2);
1124 *p++ = cpu_to_be32(bm0);
1125 *p = cpu_to_be32(bm1);
1127 hdr->replen += decode_getattr_maxsz;
1131 encode_getattr_three(struct xdr_stream *xdr,
1132 uint32_t bm0, uint32_t bm1, uint32_t bm2,
1133 struct compound_hdr *hdr)
1137 p = reserve_space(xdr, 4);
1138 *p = cpu_to_be32(OP_GETATTR);
1140 p = reserve_space(xdr, 16);
1141 *p++ = cpu_to_be32(3);
1142 *p++ = cpu_to_be32(bm0);
1143 *p++ = cpu_to_be32(bm1);
1144 *p = cpu_to_be32(bm2);
1146 p = reserve_space(xdr, 12);
1147 *p++ = cpu_to_be32(2);
1148 *p++ = cpu_to_be32(bm0);
1149 *p = cpu_to_be32(bm1);
1151 p = reserve_space(xdr, 8);
1152 *p++ = cpu_to_be32(1);
1153 *p = cpu_to_be32(bm0);
1156 hdr->replen += decode_getattr_maxsz;
1159 static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1161 encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0],
1162 bitmask[1] & nfs4_fattr_bitmap[1], hdr);
1165 static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1167 encode_getattr_three(xdr,
1168 bitmask[0] & nfs4_fsinfo_bitmap[0],
1169 bitmask[1] & nfs4_fsinfo_bitmap[1],
1170 bitmask[2] & nfs4_fsinfo_bitmap[2],
1174 static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1176 encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0],
1177 bitmask[1] & nfs4_fs_locations_bitmap[1], hdr);
1180 static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1184 p = reserve_space(xdr, 4);
1185 *p = cpu_to_be32(OP_GETFH);
1187 hdr->replen += decode_getfh_maxsz;
1190 static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1194 p = reserve_space(xdr, 8 + name->len);
1195 *p++ = cpu_to_be32(OP_LINK);
1196 xdr_encode_opaque(p, name->name, name->len);
1198 hdr->replen += decode_link_maxsz;
1201 static inline int nfs4_lock_type(struct file_lock *fl, int block)
1203 if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK)
1204 return block ? NFS4_READW_LT : NFS4_READ_LT;
1205 return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT;
1208 static inline uint64_t nfs4_lock_length(struct file_lock *fl)
1210 if (fl->fl_end == OFFSET_MAX)
1211 return ~(uint64_t)0;
1212 return fl->fl_end - fl->fl_start + 1;
1215 static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner)
1219 p = reserve_space(xdr, 32);
1220 p = xdr_encode_hyper(p, lowner->clientid);
1221 *p++ = cpu_to_be32(20);
1222 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
1223 *p++ = cpu_to_be32(lowner->s_dev);
1224 xdr_encode_hyper(p, lowner->id);
1228 * opcode,type,reclaim,offset,length,new_lock_owner = 32
1229 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
1231 static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr)
1235 p = reserve_space(xdr, 32);
1236 *p++ = cpu_to_be32(OP_LOCK);
1237 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block));
1238 *p++ = cpu_to_be32(args->reclaim);
1239 p = xdr_encode_hyper(p, args->fl->fl_start);
1240 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1241 *p = cpu_to_be32(args->new_lock_owner);
1242 if (args->new_lock_owner){
1243 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
1244 *p++ = cpu_to_be32(args->open_seqid->sequence->counter);
1245 p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE);
1246 *p++ = cpu_to_be32(args->lock_seqid->sequence->counter);
1247 encode_lockowner(xdr, &args->lock_owner);
1250 p = reserve_space(xdr, NFS4_STATEID_SIZE+4);
1251 p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE);
1252 *p = cpu_to_be32(args->lock_seqid->sequence->counter);
1255 hdr->replen += decode_lock_maxsz;
1258 static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr)
1262 p = reserve_space(xdr, 24);
1263 *p++ = cpu_to_be32(OP_LOCKT);
1264 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1265 p = xdr_encode_hyper(p, args->fl->fl_start);
1266 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1267 encode_lockowner(xdr, &args->lock_owner);
1269 hdr->replen += decode_lockt_maxsz;
1272 static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr)
1276 p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16);
1277 *p++ = cpu_to_be32(OP_LOCKU);
1278 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1279 *p++ = cpu_to_be32(args->seqid->sequence->counter);
1280 p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
1281 p = xdr_encode_hyper(p, args->fl->fl_start);
1282 xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1284 hdr->replen += decode_locku_maxsz;
1287 static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr)
1291 p = reserve_space(xdr, 4);
1292 *p = cpu_to_be32(OP_RELEASE_LOCKOWNER);
1293 encode_lockowner(xdr, lowner);
1295 hdr->replen += decode_release_lockowner_maxsz;
1298 static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1300 int len = name->len;
1303 p = reserve_space(xdr, 8 + len);
1304 *p++ = cpu_to_be32(OP_LOOKUP);
1305 xdr_encode_opaque(p, name->name, len);
1307 hdr->replen += decode_lookup_maxsz;
1310 static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode)
1314 p = reserve_space(xdr, 8);
1315 switch (fmode & (FMODE_READ|FMODE_WRITE)) {
1317 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ);
1320 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE);
1322 case FMODE_READ|FMODE_WRITE:
1323 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH);
1326 *p++ = cpu_to_be32(0);
1328 *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */
1331 static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1335 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1338 p = reserve_space(xdr, 8);
1339 *p++ = cpu_to_be32(OP_OPEN);
1340 *p = cpu_to_be32(arg->seqid->sequence->counter);
1341 encode_share_access(xdr, arg->fmode);
1342 p = reserve_space(xdr, 32);
1343 p = xdr_encode_hyper(p, arg->clientid);
1344 *p++ = cpu_to_be32(20);
1345 p = xdr_encode_opaque_fixed(p, "open id:", 8);
1346 *p++ = cpu_to_be32(arg->server->s_dev);
1347 xdr_encode_hyper(p, arg->id);
1350 static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1353 struct nfs_client *clp;
1355 p = reserve_space(xdr, 4);
1356 switch(arg->open_flags & O_EXCL) {
1358 *p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
1359 encode_attrs(xdr, arg->u.attrs, arg->server);
1362 clp = arg->server->nfs_client;
1363 if (clp->cl_mvops->minor_version > 0) {
1364 if (nfs4_has_persistent_session(clp)) {
1365 *p = cpu_to_be32(NFS4_CREATE_GUARDED);
1366 encode_attrs(xdr, arg->u.attrs, arg->server);
1370 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1);
1371 encode_nfs4_verifier(xdr, &arg->u.verifier);
1373 encode_attrs(xdr, &dummy, arg->server);
1376 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
1377 encode_nfs4_verifier(xdr, &arg->u.verifier);
1382 static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1386 p = reserve_space(xdr, 4);
1387 switch (arg->open_flags & O_CREAT) {
1389 *p = cpu_to_be32(NFS4_OPEN_NOCREATE);
1392 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
1393 *p = cpu_to_be32(NFS4_OPEN_CREATE);
1394 encode_createmode(xdr, arg);
1398 static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type)
1402 p = reserve_space(xdr, 4);
1403 switch (delegation_type) {
1405 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE);
1408 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ);
1410 case FMODE_WRITE|FMODE_READ:
1411 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE);
1418 static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
1422 p = reserve_space(xdr, 4);
1423 *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL);
1424 encode_string(xdr, name->len, name->name);
1427 static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type)
1431 p = reserve_space(xdr, 4);
1432 *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS);
1433 encode_delegation_type(xdr, type);
1436 static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
1440 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1441 *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
1442 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
1443 encode_string(xdr, name->len, name->name);
1446 static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr)
1448 encode_openhdr(xdr, arg);
1449 encode_opentype(xdr, arg);
1450 switch (arg->claim) {
1451 case NFS4_OPEN_CLAIM_NULL:
1452 encode_claim_null(xdr, arg->name);
1454 case NFS4_OPEN_CLAIM_PREVIOUS:
1455 encode_claim_previous(xdr, arg->u.delegation_type);
1457 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
1458 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
1464 hdr->replen += decode_open_maxsz;
1467 static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr)
1471 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
1472 *p++ = cpu_to_be32(OP_OPEN_CONFIRM);
1473 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
1474 *p = cpu_to_be32(arg->seqid->sequence->counter);
1476 hdr->replen += decode_open_confirm_maxsz;
1479 static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
1483 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
1484 *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE);
1485 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
1486 *p = cpu_to_be32(arg->seqid->sequence->counter);
1487 encode_share_access(xdr, arg->fmode);
1489 hdr->replen += decode_open_downgrade_maxsz;
1493 encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr)
1498 p = reserve_space(xdr, 8 + len);
1499 *p++ = cpu_to_be32(OP_PUTFH);
1500 xdr_encode_opaque(p, fh->data, len);
1502 hdr->replen += decode_putfh_maxsz;
1505 static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1509 p = reserve_space(xdr, 4);
1510 *p = cpu_to_be32(OP_PUTROOTFH);
1512 hdr->replen += decode_putrootfh_maxsz;
1515 static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx, int zero_seqid)
1517 nfs4_stateid stateid;
1520 p = reserve_space(xdr, NFS4_STATEID_SIZE);
1521 if (ctx->state != NULL) {
1522 nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid);
1524 stateid.stateid.seqid = 0;
1525 xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE);
1527 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
1530 static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr)
1534 p = reserve_space(xdr, 4);
1535 *p = cpu_to_be32(OP_READ);
1537 encode_stateid(xdr, args->context, args->lock_context,
1540 p = reserve_space(xdr, 12);
1541 p = xdr_encode_hyper(p, args->offset);
1542 *p = cpu_to_be32(args->count);
1544 hdr->replen += decode_read_maxsz;
1547 static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr)
1549 uint32_t attrs[2] = {
1550 FATTR4_WORD0_RDATTR_ERROR,
1551 FATTR4_WORD1_MOUNTED_ON_FILEID,
1553 uint32_t dircount = readdir->count >> 1;
1556 if (readdir->plus) {
1557 attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE|
1558 FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID;
1559 attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER|
1560 FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV|
1561 FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS|
1562 FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
1565 /* Use mounted_on_fileid only if the server supports it */
1566 if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID))
1567 attrs[0] |= FATTR4_WORD0_FILEID;
1569 p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20);
1570 *p++ = cpu_to_be32(OP_READDIR);
1571 p = xdr_encode_hyper(p, readdir->cookie);
1572 p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE);
1573 *p++ = cpu_to_be32(dircount);
1574 *p++ = cpu_to_be32(readdir->count);
1575 *p++ = cpu_to_be32(2);
1577 *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]);
1578 *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]);
1580 hdr->replen += decode_readdir_maxsz;
1581 dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n",
1583 (unsigned long long)readdir->cookie,
1584 ((u32 *)readdir->verifier.data)[0],
1585 ((u32 *)readdir->verifier.data)[1],
1586 attrs[0] & readdir->bitmask[0],
1587 attrs[1] & readdir->bitmask[1]);
1590 static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr)
1594 p = reserve_space(xdr, 4);
1595 *p = cpu_to_be32(OP_READLINK);
1597 hdr->replen += decode_readlink_maxsz;
1600 static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1604 p = reserve_space(xdr, 8 + name->len);
1605 *p++ = cpu_to_be32(OP_REMOVE);
1606 xdr_encode_opaque(p, name->name, name->len);
1608 hdr->replen += decode_remove_maxsz;
1611 static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr)
1615 p = reserve_space(xdr, 4);
1616 *p = cpu_to_be32(OP_RENAME);
1617 encode_string(xdr, oldname->len, oldname->name);
1618 encode_string(xdr, newname->len, newname->name);
1620 hdr->replen += decode_rename_maxsz;
1623 static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr)
1627 p = reserve_space(xdr, 12);
1628 *p++ = cpu_to_be32(OP_RENEW);
1629 xdr_encode_hyper(p, client_stateid->cl_clientid);
1631 hdr->replen += decode_renew_maxsz;
1635 encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1639 p = reserve_space(xdr, 4);
1640 *p = cpu_to_be32(OP_RESTOREFH);
1642 hdr->replen += decode_restorefh_maxsz;
1646 encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr)
1650 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1651 *p++ = cpu_to_be32(OP_SETATTR);
1652 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
1653 p = reserve_space(xdr, 2*4);
1654 *p++ = cpu_to_be32(1);
1655 *p = cpu_to_be32(FATTR4_WORD0_ACL);
1656 BUG_ON(arg->acl_len % 4);
1657 p = reserve_space(xdr, 4);
1658 *p = cpu_to_be32(arg->acl_len);
1659 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
1661 hdr->replen += decode_setacl_maxsz;
1665 encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1669 p = reserve_space(xdr, 4);
1670 *p = cpu_to_be32(OP_SAVEFH);
1672 hdr->replen += decode_savefh_maxsz;
1675 static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr)
1679 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1680 *p++ = cpu_to_be32(OP_SETATTR);
1681 xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE);
1683 hdr->replen += decode_setattr_maxsz;
1684 encode_attrs(xdr, arg->iap, server);
1687 static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr)
1691 p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE);
1692 *p++ = cpu_to_be32(OP_SETCLIENTID);
1693 xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE);
1695 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
1696 p = reserve_space(xdr, 4);
1697 *p = cpu_to_be32(setclientid->sc_prog);
1698 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1699 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
1700 p = reserve_space(xdr, 4);
1701 *p = cpu_to_be32(setclientid->sc_cb_ident);
1703 hdr->replen += decode_setclientid_maxsz;
1706 static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr)
1710 p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE);
1711 *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM);
1712 p = xdr_encode_hyper(p, arg->clientid);
1713 xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE);
1715 hdr->replen += decode_setclientid_confirm_maxsz;
1718 static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
1722 p = reserve_space(xdr, 4);
1723 *p = cpu_to_be32(OP_WRITE);
1725 encode_stateid(xdr, args->context, args->lock_context,
1728 p = reserve_space(xdr, 16);
1729 p = xdr_encode_hyper(p, args->offset);
1730 *p++ = cpu_to_be32(args->stable);
1731 *p = cpu_to_be32(args->count);
1733 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
1735 hdr->replen += decode_write_maxsz;
1738 static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr)
1742 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1744 *p++ = cpu_to_be32(OP_DELEGRETURN);
1745 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
1747 hdr->replen += decode_delegreturn_maxsz;
1750 static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1752 int len = name->len;
1755 p = reserve_space(xdr, 8 + len);
1756 *p++ = cpu_to_be32(OP_SECINFO);
1757 xdr_encode_opaque(p, name->name, len);
1759 hdr->replen += decode_secinfo_maxsz;
1762 #if defined(CONFIG_NFS_V4_1)
1763 /* NFSv4.1 operations */
1764 static void encode_exchange_id(struct xdr_stream *xdr,
1765 struct nfs41_exchange_id_args *args,
1766 struct compound_hdr *hdr)
1770 p = reserve_space(xdr, 4 + sizeof(args->verifier->data));
1771 *p++ = cpu_to_be32(OP_EXCHANGE_ID);
1772 xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data));
1774 encode_string(xdr, args->id_len, args->id);
1776 p = reserve_space(xdr, 12);
1777 *p++ = cpu_to_be32(args->flags);
1778 *p++ = cpu_to_be32(0); /* zero length state_protect4_a */
1779 *p = cpu_to_be32(0); /* zero length implementation id array */
1781 hdr->replen += decode_exchange_id_maxsz;
1784 static void encode_create_session(struct xdr_stream *xdr,
1785 struct nfs41_create_session_args *args,
1786 struct compound_hdr *hdr)
1789 char machine_name[NFS4_MAX_MACHINE_NAME_LEN];
1791 struct nfs_client *clp = args->client;
1792 u32 max_resp_sz_cached;
1795 * Assumes OPEN is the biggest non-idempotent compound.
1796 * 2 is the verifier.
1798 max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE +
1799 RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT;
1801 len = scnprintf(machine_name, sizeof(machine_name), "%s",
1804 p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12);
1805 *p++ = cpu_to_be32(OP_CREATE_SESSION);
1806 p = xdr_encode_hyper(p, clp->cl_clientid);
1807 *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */
1808 *p++ = cpu_to_be32(args->flags); /*flags */
1811 *p++ = cpu_to_be32(0); /* header padding size */
1812 *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */
1813 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */
1814 *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */
1815 *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */
1816 *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */
1817 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1820 *p++ = cpu_to_be32(0); /* header padding size */
1821 *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */
1822 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */
1823 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1824 *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */
1825 *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */
1826 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1828 *p++ = cpu_to_be32(args->cb_program); /* cb_program */
1829 *p++ = cpu_to_be32(1);
1830 *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */
1832 /* authsys_parms rfc1831 */
1833 *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */
1834 p = xdr_encode_opaque(p, machine_name, len);
1835 *p++ = cpu_to_be32(0); /* UID */
1836 *p++ = cpu_to_be32(0); /* GID */
1837 *p = cpu_to_be32(0); /* No more gids */
1839 hdr->replen += decode_create_session_maxsz;
1842 static void encode_destroy_session(struct xdr_stream *xdr,
1843 struct nfs4_session *session,
1844 struct compound_hdr *hdr)
1847 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN);
1848 *p++ = cpu_to_be32(OP_DESTROY_SESSION);
1849 xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1851 hdr->replen += decode_destroy_session_maxsz;
1854 static void encode_reclaim_complete(struct xdr_stream *xdr,
1855 struct nfs41_reclaim_complete_args *args,
1856 struct compound_hdr *hdr)
1860 p = reserve_space(xdr, 8);
1861 *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE);
1862 *p++ = cpu_to_be32(args->one_fs);
1864 hdr->replen += decode_reclaim_complete_maxsz;
1866 #endif /* CONFIG_NFS_V4_1 */
1868 static void encode_sequence(struct xdr_stream *xdr,
1869 const struct nfs4_sequence_args *args,
1870 struct compound_hdr *hdr)
1872 #if defined(CONFIG_NFS_V4_1)
1873 struct nfs4_session *session = args->sa_session;
1874 struct nfs4_slot_table *tp;
1875 struct nfs4_slot *slot;
1881 tp = &session->fc_slot_table;
1883 WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE);
1884 slot = tp->slots + args->sa_slotid;
1886 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16);
1887 *p++ = cpu_to_be32(OP_SEQUENCE);
1890 * Sessionid + seqid + slotid + max slotid + cache_this
1892 dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
1893 "max_slotid=%d cache_this=%d\n",
1895 ((u32 *)session->sess_id.data)[0],
1896 ((u32 *)session->sess_id.data)[1],
1897 ((u32 *)session->sess_id.data)[2],
1898 ((u32 *)session->sess_id.data)[3],
1899 slot->seq_nr, args->sa_slotid,
1900 tp->highest_used_slotid, args->sa_cache_this);
1901 p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1902 *p++ = cpu_to_be32(slot->seq_nr);
1903 *p++ = cpu_to_be32(args->sa_slotid);
1904 *p++ = cpu_to_be32(tp->highest_used_slotid);
1905 *p = cpu_to_be32(args->sa_cache_this);
1907 hdr->replen += decode_sequence_maxsz;
1908 #endif /* CONFIG_NFS_V4_1 */
1911 #ifdef CONFIG_NFS_V4_1
1913 encode_getdevicelist(struct xdr_stream *xdr,
1914 const struct nfs4_getdevicelist_args *args,
1915 struct compound_hdr *hdr)
1918 nfs4_verifier dummy = {
1922 p = reserve_space(xdr, 20);
1923 *p++ = cpu_to_be32(OP_GETDEVICELIST);
1924 *p++ = cpu_to_be32(args->layoutclass);
1925 *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM);
1926 xdr_encode_hyper(p, 0ULL); /* cookie */
1927 encode_nfs4_verifier(xdr, &dummy);
1929 hdr->replen += decode_getdevicelist_maxsz;
1933 encode_getdeviceinfo(struct xdr_stream *xdr,
1934 const struct nfs4_getdeviceinfo_args *args,
1935 struct compound_hdr *hdr)
1939 p = reserve_space(xdr, 16 + NFS4_DEVICEID4_SIZE);
1940 *p++ = cpu_to_be32(OP_GETDEVICEINFO);
1941 p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data,
1942 NFS4_DEVICEID4_SIZE);
1943 *p++ = cpu_to_be32(args->pdev->layout_type);
1944 *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */
1945 *p++ = cpu_to_be32(0); /* bitmap length 0 */
1947 hdr->replen += decode_getdeviceinfo_maxsz;
1951 encode_layoutget(struct xdr_stream *xdr,
1952 const struct nfs4_layoutget_args *args,
1953 struct compound_hdr *hdr)
1957 p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE);
1958 *p++ = cpu_to_be32(OP_LAYOUTGET);
1959 *p++ = cpu_to_be32(0); /* Signal layout available */
1960 *p++ = cpu_to_be32(args->type);
1961 *p++ = cpu_to_be32(args->range.iomode);
1962 p = xdr_encode_hyper(p, args->range.offset);
1963 p = xdr_encode_hyper(p, args->range.length);
1964 p = xdr_encode_hyper(p, args->minlength);
1965 p = xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE);
1966 *p = cpu_to_be32(args->maxcount);
1968 dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n",
1972 (unsigned long)args->range.offset,
1973 (unsigned long)args->range.length,
1976 hdr->replen += decode_layoutget_maxsz;
1980 encode_layoutcommit(struct xdr_stream *xdr,
1981 struct inode *inode,
1982 const struct nfs4_layoutcommit_args *args,
1983 struct compound_hdr *hdr)
1987 dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten,
1988 NFS_SERVER(args->inode)->pnfs_curr_ld->id);
1990 p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE);
1991 *p++ = cpu_to_be32(OP_LAYOUTCOMMIT);
1992 /* Only whole file layouts */
1993 p = xdr_encode_hyper(p, 0); /* offset */
1994 p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */
1995 *p++ = cpu_to_be32(0); /* reclaim */
1996 p = xdr_encode_opaque_fixed(p, args->stateid.data, NFS4_STATEID_SIZE);
1997 *p++ = cpu_to_be32(1); /* newoffset = TRUE */
1998 p = xdr_encode_hyper(p, args->lastbytewritten);
1999 *p++ = cpu_to_be32(0); /* Never send time_modify_changed */
2000 *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */
2002 if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit)
2003 NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit(
2004 NFS_I(inode)->layout, xdr, args);
2006 p = reserve_space(xdr, 4);
2007 *p = cpu_to_be32(0); /* no layout-type payload */
2011 hdr->replen += decode_layoutcommit_maxsz;
2016 encode_layoutreturn(struct xdr_stream *xdr,
2017 const struct nfs4_layoutreturn_args *args,
2018 struct compound_hdr *hdr)
2022 p = reserve_space(xdr, 20);
2023 *p++ = cpu_to_be32(OP_LAYOUTRETURN);
2024 *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */
2025 *p++ = cpu_to_be32(args->layout_type);
2026 *p++ = cpu_to_be32(IOMODE_ANY);
2027 *p = cpu_to_be32(RETURN_FILE);
2028 p = reserve_space(xdr, 16 + NFS4_STATEID_SIZE);
2029 p = xdr_encode_hyper(p, 0);
2030 p = xdr_encode_hyper(p, NFS4_MAX_UINT64);
2031 spin_lock(&args->inode->i_lock);
2032 xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE);
2033 spin_unlock(&args->inode->i_lock);
2034 if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) {
2035 NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn(
2036 NFS_I(args->inode)->layout, xdr, args);
2038 p = reserve_space(xdr, 4);
2039 *p = cpu_to_be32(0);
2042 hdr->replen += decode_layoutreturn_maxsz;
2046 encode_secinfo_no_name(struct xdr_stream *xdr,
2047 const struct nfs41_secinfo_no_name_args *args,
2048 struct compound_hdr *hdr)
2051 p = reserve_space(xdr, 8);
2052 *p++ = cpu_to_be32(OP_SECINFO_NO_NAME);
2053 *p++ = cpu_to_be32(args->style);
2055 hdr->replen += decode_secinfo_no_name_maxsz;
2059 static void encode_test_stateid(struct xdr_stream *xdr,
2060 struct nfs41_test_stateid_args *args,
2061 struct compound_hdr *hdr)
2065 p = reserve_space(xdr, 8 + NFS4_STATEID_SIZE);
2066 *p++ = cpu_to_be32(OP_TEST_STATEID);
2067 *p++ = cpu_to_be32(1);
2068 xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
2070 hdr->replen += decode_test_stateid_maxsz;
2073 static void encode_free_stateid(struct xdr_stream *xdr,
2074 struct nfs41_free_stateid_args *args,
2075 struct compound_hdr *hdr)
2078 p = reserve_space(xdr, 4 + NFS4_STATEID_SIZE);
2079 *p++ = cpu_to_be32(OP_FREE_STATEID);
2080 xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
2082 hdr->replen += decode_free_stateid_maxsz;
2084 #endif /* CONFIG_NFS_V4_1 */
2087 * END OF "GENERIC" ENCODE ROUTINES.
2090 static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
2092 #if defined(CONFIG_NFS_V4_1)
2093 if (args->sa_session)
2094 return args->sa_session->clp->cl_mvops->minor_version;
2095 #endif /* CONFIG_NFS_V4_1 */
2100 * Encode an ACCESS request
2102 static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr,
2103 const struct nfs4_accessargs *args)
2105 struct compound_hdr hdr = {
2106 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2109 encode_compound_hdr(xdr, req, &hdr);
2110 encode_sequence(xdr, &args->seq_args, &hdr);
2111 encode_putfh(xdr, args->fh, &hdr);
2112 encode_access(xdr, args->access, &hdr);
2113 encode_getfattr(xdr, args->bitmask, &hdr);
2118 * Encode LOOKUP request
2120 static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr,
2121 const struct nfs4_lookup_arg *args)
2123 struct compound_hdr hdr = {
2124 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2127 encode_compound_hdr(xdr, req, &hdr);
2128 encode_sequence(xdr, &args->seq_args, &hdr);
2129 encode_putfh(xdr, args->dir_fh, &hdr);
2130 encode_lookup(xdr, args->name, &hdr);
2131 encode_getfh(xdr, &hdr);
2132 encode_getfattr(xdr, args->bitmask, &hdr);
2137 * Encode LOOKUP_ROOT request
2139 static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req,
2140 struct xdr_stream *xdr,
2141 const struct nfs4_lookup_root_arg *args)
2143 struct compound_hdr hdr = {
2144 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2147 encode_compound_hdr(xdr, req, &hdr);
2148 encode_sequence(xdr, &args->seq_args, &hdr);
2149 encode_putrootfh(xdr, &hdr);
2150 encode_getfh(xdr, &hdr);
2151 encode_getfattr(xdr, args->bitmask, &hdr);
2156 * Encode REMOVE request
2158 static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr,
2159 const struct nfs_removeargs *args)
2161 struct compound_hdr hdr = {
2162 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2165 encode_compound_hdr(xdr, req, &hdr);
2166 encode_sequence(xdr, &args->seq_args, &hdr);
2167 encode_putfh(xdr, args->fh, &hdr);
2168 encode_remove(xdr, &args->name, &hdr);
2169 encode_getfattr(xdr, args->bitmask, &hdr);
2174 * Encode RENAME request
2176 static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr,
2177 const struct nfs_renameargs *args)
2179 struct compound_hdr hdr = {
2180 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2183 encode_compound_hdr(xdr, req, &hdr);
2184 encode_sequence(xdr, &args->seq_args, &hdr);
2185 encode_putfh(xdr, args->old_dir, &hdr);
2186 encode_savefh(xdr, &hdr);
2187 encode_putfh(xdr, args->new_dir, &hdr);
2188 encode_rename(xdr, args->old_name, args->new_name, &hdr);
2189 encode_getfattr(xdr, args->bitmask, &hdr);
2190 encode_restorefh(xdr, &hdr);
2191 encode_getfattr(xdr, args->bitmask, &hdr);
2196 * Encode LINK request
2198 static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr,
2199 const struct nfs4_link_arg *args)
2201 struct compound_hdr hdr = {
2202 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2205 encode_compound_hdr(xdr, req, &hdr);
2206 encode_sequence(xdr, &args->seq_args, &hdr);
2207 encode_putfh(xdr, args->fh, &hdr);
2208 encode_savefh(xdr, &hdr);
2209 encode_putfh(xdr, args->dir_fh, &hdr);
2210 encode_link(xdr, args->name, &hdr);
2211 encode_getfattr(xdr, args->bitmask, &hdr);
2212 encode_restorefh(xdr, &hdr);
2213 encode_getfattr(xdr, args->bitmask, &hdr);
2218 * Encode CREATE request
2220 static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr,
2221 const struct nfs4_create_arg *args)
2223 struct compound_hdr hdr = {
2224 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2227 encode_compound_hdr(xdr, req, &hdr);
2228 encode_sequence(xdr, &args->seq_args, &hdr);
2229 encode_putfh(xdr, args->dir_fh, &hdr);
2230 encode_savefh(xdr, &hdr);
2231 encode_create(xdr, args, &hdr);
2232 encode_getfh(xdr, &hdr);
2233 encode_getfattr(xdr, args->bitmask, &hdr);
2234 encode_restorefh(xdr, &hdr);
2235 encode_getfattr(xdr, args->bitmask, &hdr);
2240 * Encode SYMLINK request
2242 static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr,
2243 const struct nfs4_create_arg *args)
2245 nfs4_xdr_enc_create(req, xdr, args);
2249 * Encode GETATTR request
2251 static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr,
2252 const struct nfs4_getattr_arg *args)
2254 struct compound_hdr hdr = {
2255 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2258 encode_compound_hdr(xdr, req, &hdr);
2259 encode_sequence(xdr, &args->seq_args, &hdr);
2260 encode_putfh(xdr, args->fh, &hdr);
2261 encode_getfattr(xdr, args->bitmask, &hdr);
2266 * Encode a CLOSE request
2268 static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
2269 struct nfs_closeargs *args)
2271 struct compound_hdr hdr = {
2272 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2275 encode_compound_hdr(xdr, req, &hdr);
2276 encode_sequence(xdr, &args->seq_args, &hdr);
2277 encode_putfh(xdr, args->fh, &hdr);
2278 encode_close(xdr, args, &hdr);
2279 encode_getfattr(xdr, args->bitmask, &hdr);
2284 * Encode an OPEN request
2286 static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
2287 struct nfs_openargs *args)
2289 struct compound_hdr hdr = {
2290 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2293 encode_compound_hdr(xdr, req, &hdr);
2294 encode_sequence(xdr, &args->seq_args, &hdr);
2295 encode_putfh(xdr, args->fh, &hdr);
2296 encode_savefh(xdr, &hdr);
2297 encode_open(xdr, args, &hdr);
2298 encode_getfh(xdr, &hdr);
2299 encode_getfattr(xdr, args->bitmask, &hdr);
2300 encode_restorefh(xdr, &hdr);
2301 encode_getfattr(xdr, args->bitmask, &hdr);
2306 * Encode an OPEN_CONFIRM request
2308 static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req,
2309 struct xdr_stream *xdr,
2310 struct nfs_open_confirmargs *args)
2312 struct compound_hdr hdr = {
2316 encode_compound_hdr(xdr, req, &hdr);
2317 encode_putfh(xdr, args->fh, &hdr);
2318 encode_open_confirm(xdr, args, &hdr);
2323 * Encode an OPEN request with no attributes.
2325 static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req,
2326 struct xdr_stream *xdr,
2327 struct nfs_openargs *args)
2329 struct compound_hdr hdr = {
2330 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2333 encode_compound_hdr(xdr, req, &hdr);
2334 encode_sequence(xdr, &args->seq_args, &hdr);
2335 encode_putfh(xdr, args->fh, &hdr);
2336 encode_open(xdr, args, &hdr);
2337 encode_getfattr(xdr, args->bitmask, &hdr);
2342 * Encode an OPEN_DOWNGRADE request
2344 static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req,
2345 struct xdr_stream *xdr,
2346 struct nfs_closeargs *args)
2348 struct compound_hdr hdr = {
2349 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2352 encode_compound_hdr(xdr, req, &hdr);
2353 encode_sequence(xdr, &args->seq_args, &hdr);
2354 encode_putfh(xdr, args->fh, &hdr);
2355 encode_open_downgrade(xdr, args, &hdr);
2356 encode_getfattr(xdr, args->bitmask, &hdr);
2361 * Encode a LOCK request
2363 static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr,
2364 struct nfs_lock_args *args)
2366 struct compound_hdr hdr = {
2367 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2370 encode_compound_hdr(xdr, req, &hdr);
2371 encode_sequence(xdr, &args->seq_args, &hdr);
2372 encode_putfh(xdr, args->fh, &hdr);
2373 encode_lock(xdr, args, &hdr);
2378 * Encode a LOCKT request
2380 static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr,
2381 struct nfs_lockt_args *args)
2383 struct compound_hdr hdr = {
2384 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2387 encode_compound_hdr(xdr, req, &hdr);
2388 encode_sequence(xdr, &args->seq_args, &hdr);
2389 encode_putfh(xdr, args->fh, &hdr);
2390 encode_lockt(xdr, args, &hdr);
2395 * Encode a LOCKU request
2397 static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr,
2398 struct nfs_locku_args *args)
2400 struct compound_hdr hdr = {
2401 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2404 encode_compound_hdr(xdr, req, &hdr);
2405 encode_sequence(xdr, &args->seq_args, &hdr);
2406 encode_putfh(xdr, args->fh, &hdr);
2407 encode_locku(xdr, args, &hdr);
2411 static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req,
2412 struct xdr_stream *xdr,
2413 struct nfs_release_lockowner_args *args)
2415 struct compound_hdr hdr = {
2419 encode_compound_hdr(xdr, req, &hdr);
2420 encode_release_lockowner(xdr, &args->lock_owner, &hdr);
2425 * Encode a READLINK request
2427 static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr,
2428 const struct nfs4_readlink *args)
2430 struct compound_hdr hdr = {
2431 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2434 encode_compound_hdr(xdr, req, &hdr);
2435 encode_sequence(xdr, &args->seq_args, &hdr);
2436 encode_putfh(xdr, args->fh, &hdr);
2437 encode_readlink(xdr, args, req, &hdr);
2439 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
2440 args->pgbase, args->pglen);
2445 * Encode a READDIR request
2447 static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr,
2448 const struct nfs4_readdir_arg *args)
2450 struct compound_hdr hdr = {
2451 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2454 encode_compound_hdr(xdr, req, &hdr);
2455 encode_sequence(xdr, &args->seq_args, &hdr);
2456 encode_putfh(xdr, args->fh, &hdr);
2457 encode_readdir(xdr, args, req, &hdr);
2459 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
2460 args->pgbase, args->count);
2461 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
2462 __func__, hdr.replen << 2, args->pages,
2463 args->pgbase, args->count);
2468 * Encode a READ request
2470 static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr,
2471 struct nfs_readargs *args)
2473 struct compound_hdr hdr = {
2474 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2477 encode_compound_hdr(xdr, req, &hdr);
2478 encode_sequence(xdr, &args->seq_args, &hdr);
2479 encode_putfh(xdr, args->fh, &hdr);
2480 encode_read(xdr, args, &hdr);
2482 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
2483 args->pages, args->pgbase, args->count);
2484 req->rq_rcv_buf.flags |= XDRBUF_READ;
2489 * Encode an SETATTR request
2491 static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr,
2492 struct nfs_setattrargs *args)
2494 struct compound_hdr hdr = {
2495 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2498 encode_compound_hdr(xdr, req, &hdr);
2499 encode_sequence(xdr, &args->seq_args, &hdr);
2500 encode_putfh(xdr, args->fh, &hdr);
2501 encode_setattr(xdr, args, args->server, &hdr);
2502 encode_getfattr(xdr, args->bitmask, &hdr);
2507 * Encode a GETACL request
2509 static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
2510 struct nfs_getaclargs *args)
2512 struct compound_hdr hdr = {
2513 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2517 encode_compound_hdr(xdr, req, &hdr);
2518 encode_sequence(xdr, &args->seq_args, &hdr);
2519 encode_putfh(xdr, args->fh, &hdr);
2520 replen = hdr.replen + op_decode_hdr_maxsz + 1;
2521 encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr);
2523 xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
2524 args->acl_pages, args->acl_pgbase, args->acl_len);
2530 * Encode a WRITE request
2532 static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr,
2533 struct nfs_writeargs *args)
2535 struct compound_hdr hdr = {
2536 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2539 encode_compound_hdr(xdr, req, &hdr);
2540 encode_sequence(xdr, &args->seq_args, &hdr);
2541 encode_putfh(xdr, args->fh, &hdr);
2542 encode_write(xdr, args, &hdr);
2543 req->rq_snd_buf.flags |= XDRBUF_WRITE;
2545 encode_getfattr(xdr, args->bitmask, &hdr);
2552 static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
2553 struct nfs_writeargs *args)
2555 struct compound_hdr hdr = {
2556 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2559 encode_compound_hdr(xdr, req, &hdr);
2560 encode_sequence(xdr, &args->seq_args, &hdr);
2561 encode_putfh(xdr, args->fh, &hdr);
2562 encode_commit(xdr, args, &hdr);
2564 encode_getfattr(xdr, args->bitmask, &hdr);
2571 static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
2572 struct nfs4_fsinfo_arg *args)
2574 struct compound_hdr hdr = {
2575 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2578 encode_compound_hdr(xdr, req, &hdr);
2579 encode_sequence(xdr, &args->seq_args, &hdr);
2580 encode_putfh(xdr, args->fh, &hdr);
2581 encode_fsinfo(xdr, args->bitmask, &hdr);
2586 * a PATHCONF request
2588 static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
2589 const struct nfs4_pathconf_arg *args)
2591 struct compound_hdr hdr = {
2592 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2595 encode_compound_hdr(xdr, req, &hdr);
2596 encode_sequence(xdr, &args->seq_args, &hdr);
2597 encode_putfh(xdr, args->fh, &hdr);
2598 encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0],
2606 static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
2607 const struct nfs4_statfs_arg *args)
2609 struct compound_hdr hdr = {
2610 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2613 encode_compound_hdr(xdr, req, &hdr);
2614 encode_sequence(xdr, &args->seq_args, &hdr);
2615 encode_putfh(xdr, args->fh, &hdr);
2616 encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0],
2617 args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr);
2622 * GETATTR_BITMAP request
2624 static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
2625 struct xdr_stream *xdr,
2626 struct nfs4_server_caps_arg *args)
2628 struct compound_hdr hdr = {
2629 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2632 encode_compound_hdr(xdr, req, &hdr);
2633 encode_sequence(xdr, &args->seq_args, &hdr);
2634 encode_putfh(xdr, args->fhandle, &hdr);
2635 encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
2636 FATTR4_WORD0_LINK_SUPPORT|
2637 FATTR4_WORD0_SYMLINK_SUPPORT|
2638 FATTR4_WORD0_ACLSUPPORT, &hdr);
2645 static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
2646 struct nfs_client *clp)
2648 struct compound_hdr hdr = {
2652 encode_compound_hdr(xdr, req, &hdr);
2653 encode_renew(xdr, clp, &hdr);
2658 * a SETCLIENTID request
2660 static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req,
2661 struct xdr_stream *xdr,
2662 struct nfs4_setclientid *sc)
2664 struct compound_hdr hdr = {
2668 encode_compound_hdr(xdr, req, &hdr);
2669 encode_setclientid(xdr, sc, &hdr);
2674 * a SETCLIENTID_CONFIRM request
2676 static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req,
2677 struct xdr_stream *xdr,
2678 struct nfs4_setclientid_res *arg)
2680 struct compound_hdr hdr = {
2683 const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME };
2685 encode_compound_hdr(xdr, req, &hdr);
2686 encode_setclientid_confirm(xdr, arg, &hdr);
2687 encode_putrootfh(xdr, &hdr);
2688 encode_fsinfo(xdr, lease_bitmap, &hdr);
2693 * DELEGRETURN request
2695 static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
2696 struct xdr_stream *xdr,
2697 const struct nfs4_delegreturnargs *args)
2699 struct compound_hdr hdr = {
2700 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2703 encode_compound_hdr(xdr, req, &hdr);
2704 encode_sequence(xdr, &args->seq_args, &hdr);
2705 encode_putfh(xdr, args->fhandle, &hdr);
2706 encode_delegreturn(xdr, args->stateid, &hdr);
2707 encode_getfattr(xdr, args->bitmask, &hdr);
2712 * Encode FS_LOCATIONS request
2714 static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
2715 struct xdr_stream *xdr,
2716 struct nfs4_fs_locations_arg *args)
2718 struct compound_hdr hdr = {
2719 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2723 encode_compound_hdr(xdr, req, &hdr);
2724 encode_sequence(xdr, &args->seq_args, &hdr);
2725 encode_putfh(xdr, args->dir_fh, &hdr);
2726 encode_lookup(xdr, args->name, &hdr);
2727 replen = hdr.replen; /* get the attribute into args->page */
2728 encode_fs_locations(xdr, args->bitmask, &hdr);
2730 xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
2736 * Encode SECINFO request
2738 static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
2739 struct xdr_stream *xdr,
2740 struct nfs4_secinfo_arg *args)
2742 struct compound_hdr hdr = {
2743 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2746 encode_compound_hdr(xdr, req, &hdr);
2747 encode_sequence(xdr, &args->seq_args, &hdr);
2748 encode_putfh(xdr, args->dir_fh, &hdr);
2749 encode_secinfo(xdr, args->name, &hdr);
2753 #if defined(CONFIG_NFS_V4_1)
2755 * EXCHANGE_ID request
2757 static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req,
2758 struct xdr_stream *xdr,
2759 struct nfs41_exchange_id_args *args)
2761 struct compound_hdr hdr = {
2762 .minorversion = args->client->cl_mvops->minor_version,
2765 encode_compound_hdr(xdr, req, &hdr);
2766 encode_exchange_id(xdr, args, &hdr);
2771 * a CREATE_SESSION request
2773 static void nfs4_xdr_enc_create_session(struct rpc_rqst *req,
2774 struct xdr_stream *xdr,
2775 struct nfs41_create_session_args *args)
2777 struct compound_hdr hdr = {
2778 .minorversion = args->client->cl_mvops->minor_version,
2781 encode_compound_hdr(xdr, req, &hdr);
2782 encode_create_session(xdr, args, &hdr);
2787 * a DESTROY_SESSION request
2789 static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req,
2790 struct xdr_stream *xdr,
2791 struct nfs4_session *session)
2793 struct compound_hdr hdr = {
2794 .minorversion = session->clp->cl_mvops->minor_version,
2797 encode_compound_hdr(xdr, req, &hdr);
2798 encode_destroy_session(xdr, session, &hdr);
2803 * a SEQUENCE request
2805 static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr,
2806 struct nfs4_sequence_args *args)
2808 struct compound_hdr hdr = {
2809 .minorversion = nfs4_xdr_minorversion(args),
2812 encode_compound_hdr(xdr, req, &hdr);
2813 encode_sequence(xdr, args, &hdr);
2818 * a GET_LEASE_TIME request
2820 static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req,
2821 struct xdr_stream *xdr,
2822 struct nfs4_get_lease_time_args *args)
2824 struct compound_hdr hdr = {
2825 .minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
2827 const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME };
2829 encode_compound_hdr(xdr, req, &hdr);
2830 encode_sequence(xdr, &args->la_seq_args, &hdr);
2831 encode_putrootfh(xdr, &hdr);
2832 encode_fsinfo(xdr, lease_bitmap, &hdr);
2837 * a RECLAIM_COMPLETE request
2839 static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req,
2840 struct xdr_stream *xdr,
2841 struct nfs41_reclaim_complete_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_reclaim_complete(xdr, args, &hdr);
2854 * Encode GETDEVICELIST request
2856 static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req,
2857 struct xdr_stream *xdr,
2858 struct nfs4_getdevicelist_args *args)
2860 struct compound_hdr hdr = {
2861 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2864 encode_compound_hdr(xdr, req, &hdr);
2865 encode_sequence(xdr, &args->seq_args, &hdr);
2866 encode_putfh(xdr, args->fh, &hdr);
2867 encode_getdevicelist(xdr, args, &hdr);
2872 * Encode GETDEVICEINFO request
2874 static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req,
2875 struct xdr_stream *xdr,
2876 struct nfs4_getdeviceinfo_args *args)
2878 struct compound_hdr hdr = {
2879 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2882 encode_compound_hdr(xdr, req, &hdr);
2883 encode_sequence(xdr, &args->seq_args, &hdr);
2884 encode_getdeviceinfo(xdr, args, &hdr);
2886 /* set up reply kvec. Subtract notification bitmap max size (2)
2887 * so that notification bitmap is put in xdr_buf tail */
2888 xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2,
2889 args->pdev->pages, args->pdev->pgbase,
2896 * Encode LAYOUTGET request
2898 static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
2899 struct xdr_stream *xdr,
2900 struct nfs4_layoutget_args *args)
2902 struct compound_hdr hdr = {
2903 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2906 encode_compound_hdr(xdr, req, &hdr);
2907 encode_sequence(xdr, &args->seq_args, &hdr);
2908 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2909 encode_layoutget(xdr, args, &hdr);
2911 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
2912 args->layout.pages, 0, args->layout.pglen);
2918 * Encode LAYOUTCOMMIT request
2920 static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req,
2921 struct xdr_stream *xdr,
2922 struct nfs4_layoutcommit_args *args)
2924 struct nfs4_layoutcommit_data *data =
2925 container_of(args, struct nfs4_layoutcommit_data, args);
2926 struct compound_hdr hdr = {
2927 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2930 encode_compound_hdr(xdr, req, &hdr);
2931 encode_sequence(xdr, &args->seq_args, &hdr);
2932 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2933 encode_layoutcommit(xdr, data->args.inode, args, &hdr);
2934 encode_getfattr(xdr, args->bitmask, &hdr);
2939 * Encode LAYOUTRETURN request
2941 static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req,
2942 struct xdr_stream *xdr,
2943 struct nfs4_layoutreturn_args *args)
2945 struct compound_hdr hdr = {
2946 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2949 encode_compound_hdr(xdr, req, &hdr);
2950 encode_sequence(xdr, &args->seq_args, &hdr);
2951 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2952 encode_layoutreturn(xdr, args, &hdr);
2957 * Encode SECINFO_NO_NAME request
2959 static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
2960 struct xdr_stream *xdr,
2961 struct nfs41_secinfo_no_name_args *args)
2963 struct compound_hdr hdr = {
2964 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2967 encode_compound_hdr(xdr, req, &hdr);
2968 encode_sequence(xdr, &args->seq_args, &hdr);
2969 encode_putrootfh(xdr, &hdr);
2970 encode_secinfo_no_name(xdr, args, &hdr);
2976 * Encode TEST_STATEID request
2978 static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req,
2979 struct xdr_stream *xdr,
2980 struct nfs41_test_stateid_args *args)
2982 struct compound_hdr hdr = {
2983 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2986 encode_compound_hdr(xdr, req, &hdr);
2987 encode_sequence(xdr, &args->seq_args, &hdr);
2988 encode_test_stateid(xdr, args, &hdr);
2993 * Encode FREE_STATEID request
2995 static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req,
2996 struct xdr_stream *xdr,
2997 struct nfs41_free_stateid_args *args)
2999 struct compound_hdr hdr = {
3000 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
3003 encode_compound_hdr(xdr, req, &hdr);
3004 encode_sequence(xdr, &args->seq_args, &hdr);
3005 encode_free_stateid(xdr, args, &hdr);
3008 #endif /* CONFIG_NFS_V4_1 */
3010 static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
3012 dprintk("nfs: %s: prematurely hit end of receive buffer. "
3013 "Remaining buffer length is %tu words.\n",
3014 func, xdr->end - xdr->p);
3017 static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
3021 p = xdr_inline_decode(xdr, 4);
3024 *len = be32_to_cpup(p);
3025 p = xdr_inline_decode(xdr, *len);
3028 *string = (char *)p;
3031 print_overflow_msg(__func__, xdr);
3035 static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
3039 p = xdr_inline_decode(xdr, 8);
3042 hdr->status = be32_to_cpup(p++);
3043 hdr->taglen = be32_to_cpup(p);
3045 p = xdr_inline_decode(xdr, hdr->taglen + 4);
3048 hdr->tag = (char *)p;
3049 p += XDR_QUADLEN(hdr->taglen);
3050 hdr->nops = be32_to_cpup(p);
3051 if (unlikely(hdr->nops < 1))
3052 return nfs4_stat_to_errno(hdr->status);
3055 print_overflow_msg(__func__, xdr);
3059 static bool __decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected,
3066 p = xdr_inline_decode(xdr, 8);
3069 opnum = be32_to_cpup(p++);
3070 if (unlikely(opnum != expected))
3071 goto out_bad_operation;
3072 nfserr = be32_to_cpup(p);
3073 if (nfserr == NFS_OK)
3076 *nfs_retval = nfs4_stat_to_errno(nfserr);
3079 dprintk("nfs: Server returned operation"
3080 " %d but we issued a request for %d\n",
3082 *nfs_retval = -EREMOTEIO;
3085 print_overflow_msg(__func__, xdr);
3090 static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
3094 __decode_op_hdr(xdr, expected, &retval);
3099 static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp)
3102 unsigned int strlen;
3105 p = xdr_inline_decode(xdr, 12);
3107 return decode_opaque_inline(xdr, &strlen, &str);
3108 print_overflow_msg(__func__, xdr);
3112 static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
3117 p = xdr_inline_decode(xdr, 4);
3120 bmlen = be32_to_cpup(p);
3122 bitmap[0] = bitmap[1] = bitmap[2] = 0;
3123 p = xdr_inline_decode(xdr, (bmlen << 2));
3127 bitmap[0] = be32_to_cpup(p++);
3129 bitmap[1] = be32_to_cpup(p++);
3131 bitmap[2] = be32_to_cpup(p);
3136 print_overflow_msg(__func__, xdr);
3140 static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep)
3144 p = xdr_inline_decode(xdr, 4);
3147 *attrlen = be32_to_cpup(p);
3151 print_overflow_msg(__func__, xdr);
3155 static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
3157 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
3159 ret = decode_attr_bitmap(xdr, bitmask);
3160 if (unlikely(ret < 0))
3162 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
3164 bitmask[0] = bitmask[1] = bitmask[2] = 0;
3165 dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__,
3166 bitmask[0], bitmask[1], bitmask[2]);
3170 static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
3176 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
3178 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
3179 p = xdr_inline_decode(xdr, 4);
3182 *type = be32_to_cpup(p);
3183 if (*type < NF4REG || *type > NF4NAMEDATTR) {
3184 dprintk("%s: bad type %d\n", __func__, *type);
3187 bitmap[0] &= ~FATTR4_WORD0_TYPE;
3188 ret = NFS_ATTR_FATTR_TYPE;
3190 dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]);
3193 print_overflow_msg(__func__, xdr);
3197 static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
3203 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
3205 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
3206 p = xdr_inline_decode(xdr, 8);
3209 xdr_decode_hyper(p, change);
3210 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
3211 ret = NFS_ATTR_FATTR_CHANGE;
3213 dprintk("%s: change attribute=%Lu\n", __func__,
3214 (unsigned long long)*change);
3217 print_overflow_msg(__func__, xdr);
3221 static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
3227 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
3229 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
3230 p = xdr_inline_decode(xdr, 8);
3233 xdr_decode_hyper(p, size);
3234 bitmap[0] &= ~FATTR4_WORD0_SIZE;
3235 ret = NFS_ATTR_FATTR_SIZE;
3237 dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size);
3240 print_overflow_msg(__func__, xdr);
3244 static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3249 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
3251 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
3252 p = xdr_inline_decode(xdr, 4);
3255 *res = be32_to_cpup(p);
3256 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
3258 dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true");
3261 print_overflow_msg(__func__, xdr);
3265 static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3270 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
3272 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
3273 p = xdr_inline_decode(xdr, 4);
3276 *res = be32_to_cpup(p);
3277 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
3279 dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true");
3282 print_overflow_msg(__func__, xdr);
3286 static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid)
3293 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
3295 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
3296 p = xdr_inline_decode(xdr, 16);
3299 p = xdr_decode_hyper(p, &fsid->major);
3300 xdr_decode_hyper(p, &fsid->minor);
3301 bitmap[0] &= ~FATTR4_WORD0_FSID;
3302 ret = NFS_ATTR_FATTR_FSID;
3304 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__,
3305 (unsigned long long)fsid->major,
3306 (unsigned long long)fsid->minor);
3309 print_overflow_msg(__func__, xdr);
3313 static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3318 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
3320 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
3321 p = xdr_inline_decode(xdr, 4);
3324 *res = be32_to_cpup(p);
3325 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
3327 dprintk("%s: file size=%u\n", __func__, (unsigned int)*res);
3330 print_overflow_msg(__func__, xdr);
3334 static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res)
3338 if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U)))
3340 if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) {
3341 p = xdr_inline_decode(xdr, 4);
3344 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
3345 *res = -be32_to_cpup(p);
3349 print_overflow_msg(__func__, xdr);
3353 static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh)
3359 memset(fh, 0, sizeof(*fh));
3361 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U)))
3363 if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) {
3364 p = xdr_inline_decode(xdr, 4);
3367 len = be32_to_cpup(p);
3368 if (len > NFS4_FHSIZE)
3370 p = xdr_inline_decode(xdr, len);
3374 memcpy(fh->data, p, len);
3377 bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE;
3381 print_overflow_msg(__func__, xdr);
3385 static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3389 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
3390 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
3392 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
3393 p = xdr_inline_decode(xdr, 4);
3396 *res = be32_to_cpup(p);
3397 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
3399 dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res);
3402 print_overflow_msg(__func__, xdr);
3406 static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3412 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
3414 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
3415 p = xdr_inline_decode(xdr, 8);
3418 xdr_decode_hyper(p, fileid);
3419 bitmap[0] &= ~FATTR4_WORD0_FILEID;
3420 ret = NFS_ATTR_FATTR_FILEID;
3422 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
3425 print_overflow_msg(__func__, xdr);
3429 static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3435 if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U)))
3437 if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) {
3438 p = xdr_inline_decode(xdr, 8);
3441 xdr_decode_hyper(p, fileid);
3442 bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
3443 ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID;
3445 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
3448 print_overflow_msg(__func__, xdr);
3452 static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3458 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
3460 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
3461 p = xdr_inline_decode(xdr, 8);
3464 xdr_decode_hyper(p, res);
3465 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
3467 dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res);
3470 print_overflow_msg(__func__, xdr);
3474 static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3480 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
3482 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
3483 p = xdr_inline_decode(xdr, 8);
3486 xdr_decode_hyper(p, res);
3487 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
3489 dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res);
3492 print_overflow_msg(__func__, xdr);
3496 static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3502 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
3504 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
3505 p = xdr_inline_decode(xdr, 8);
3508 xdr_decode_hyper(p, res);
3509 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
3511 dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res);
3514 print_overflow_msg(__func__, xdr);
3518 static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
3524 p = xdr_inline_decode(xdr, 4);
3527 n = be32_to_cpup(p);
3531 path->ncomponents = 0;
3532 while (path->ncomponents < n) {
3533 struct nfs4_string *component = &path->components[path->ncomponents];
3534 status = decode_opaque_inline(xdr, &component->len, &component->data);
3535 if (unlikely(status != 0))
3537 if (path->ncomponents != n)
3539 dprintk("%s", component->data);
3540 if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS)
3541 path->ncomponents++;
3543 dprintk("cannot parse %d components in path\n", n);
3551 /* a root pathname is sent as a zero component4 */
3552 path->ncomponents = 1;
3553 path->components[0].len=0;
3554 path->components[0].data=NULL;
3555 dprintk("path /\n");
3558 dprintk(" status %d", status);
3562 print_overflow_msg(__func__, xdr);
3566 static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
3572 if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U)))
3575 if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS)))
3577 dprintk("%s: fsroot ", __func__);
3578 status = decode_pathname(xdr, &res->fs_path);
3579 if (unlikely(status != 0))
3581 p = xdr_inline_decode(xdr, 4);
3584 n = be32_to_cpup(p);
3587 res->nlocations = 0;
3588 while (res->nlocations < n) {
3590 struct nfs4_fs_location *loc = &res->locations[res->nlocations];
3592 p = xdr_inline_decode(xdr, 4);
3595 m = be32_to_cpup(p);
3598 dprintk("%s: servers ", __func__);
3599 while (loc->nservers < m) {
3600 struct nfs4_string *server = &loc->servers[loc->nservers];
3601 status = decode_opaque_inline(xdr, &server->len, &server->data);
3602 if (unlikely(status != 0))
3604 dprintk("%s ", server->data);
3605 if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS)
3609 dprintk("%s: using first %u of %u servers "
3610 "returned for location %u\n",
3612 NFS4_FS_LOCATION_MAXSERVERS,
3613 m, res->nlocations);
3614 for (i = loc->nservers; i < m; i++) {
3617 status = decode_opaque_inline(xdr, &len, &data);
3618 if (unlikely(status != 0))
3623 status = decode_pathname(xdr, &loc->rootpath);
3624 if (unlikely(status != 0))
3626 if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES)
3629 if (res->nlocations != 0)
3630 status = NFS_ATTR_FATTR_V4_REFERRAL;
3632 dprintk("%s: fs_locations done, error = %d\n", __func__, status);
3635 print_overflow_msg(__func__, xdr);
3641 static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3647 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
3649 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
3650 p = xdr_inline_decode(xdr, 8);
3653 xdr_decode_hyper(p, res);
3654 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
3656 dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res);
3659 print_overflow_msg(__func__, xdr);
3663 static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
3669 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
3671 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
3672 p = xdr_inline_decode(xdr, 4);
3675 *maxlink = be32_to_cpup(p);
3676 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
3678 dprintk("%s: maxlink=%u\n", __func__, *maxlink);
3681 print_overflow_msg(__func__, xdr);
3685 static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
3691 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
3693 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
3694 p = xdr_inline_decode(xdr, 4);
3697 *maxname = be32_to_cpup(p);
3698 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
3700 dprintk("%s: maxname=%u\n", __func__, *maxname);
3703 print_overflow_msg(__func__, xdr);
3707 static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3713 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U)))
3715 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
3717 p = xdr_inline_decode(xdr, 8);
3720 xdr_decode_hyper(p, &maxread);
3721 if (maxread > 0x7FFFFFFF)
3722 maxread = 0x7FFFFFFF;
3723 *res = (uint32_t)maxread;
3724 bitmap[0] &= ~FATTR4_WORD0_MAXREAD;
3726 dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res);
3729 print_overflow_msg(__func__, xdr);
3733 static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3739 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U)))
3741 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
3743 p = xdr_inline_decode(xdr, 8);
3746 xdr_decode_hyper(p, &maxwrite);
3747 if (maxwrite > 0x7FFFFFFF)
3748 maxwrite = 0x7FFFFFFF;
3749 *res = (uint32_t)maxwrite;
3750 bitmap[0] &= ~FATTR4_WORD0_MAXWRITE;
3752 dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res);
3755 print_overflow_msg(__func__, xdr);
3759 static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode)
3766 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
3768 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
3769 p = xdr_inline_decode(xdr, 4);
3772 tmp = be32_to_cpup(p);
3773 *mode = tmp & ~S_IFMT;
3774 bitmap[1] &= ~FATTR4_WORD1_MODE;
3775 ret = NFS_ATTR_FATTR_MODE;
3777 dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode);
3780 print_overflow_msg(__func__, xdr);
3784 static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
3790 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
3792 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
3793 p = xdr_inline_decode(xdr, 4);
3796 *nlink = be32_to_cpup(p);
3797 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
3798 ret = NFS_ATTR_FATTR_NLINK;
3800 dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink);
3803 print_overflow_msg(__func__, xdr);
3807 static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
3808 const struct nfs_server *server, uint32_t *uid, int may_sleep)
3815 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
3817 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
3818 p = xdr_inline_decode(xdr, 4);
3821 len = be32_to_cpup(p);
3822 p = xdr_inline_decode(xdr, len);
3827 } else if (len < XDR_MAX_NETOBJ) {
3828 if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0)
3829 ret = NFS_ATTR_FATTR_OWNER;
3831 dprintk("%s: nfs_map_name_to_uid failed!\n",
3834 dprintk("%s: name too long (%u)!\n",
3836 bitmap[1] &= ~FATTR4_WORD1_OWNER;
3838 dprintk("%s: uid=%d\n", __func__, (int)*uid);
3841 print_overflow_msg(__func__, xdr);
3845 static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
3846 const struct nfs_server *server, uint32_t *gid, int may_sleep)
3853 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
3855 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
3856 p = xdr_inline_decode(xdr, 4);
3859 len = be32_to_cpup(p);
3860 p = xdr_inline_decode(xdr, len);
3865 } else if (len < XDR_MAX_NETOBJ) {
3866 if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0)
3867 ret = NFS_ATTR_FATTR_GROUP;
3869 dprintk("%s: nfs_map_group_to_gid failed!\n",
3872 dprintk("%s: name too long (%u)!\n",
3874 bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
3876 dprintk("%s: gid=%d\n", __func__, (int)*gid);
3879 print_overflow_msg(__func__, xdr);
3883 static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
3885 uint32_t major = 0, minor = 0;
3890 if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U)))
3892 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
3895 p = xdr_inline_decode(xdr, 8);
3898 major = be32_to_cpup(p++);
3899 minor = be32_to_cpup(p);
3900 tmp = MKDEV(major, minor);
3901 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
3903 bitmap[1] &= ~ FATTR4_WORD1_RAWDEV;
3904 ret = NFS_ATTR_FATTR_RDEV;
3906 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor);
3909 print_overflow_msg(__func__, xdr);
3913 static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3919 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
3921 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
3922 p = xdr_inline_decode(xdr, 8);
3925 xdr_decode_hyper(p, res);
3926 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
3928 dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res);
3931 print_overflow_msg(__func__, xdr);
3935 static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3941 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
3943 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
3944 p = xdr_inline_decode(xdr, 8);
3947 xdr_decode_hyper(p, res);
3948 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
3950 dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res);
3953 print_overflow_msg(__func__, xdr);
3957 static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3963 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
3965 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
3966 p = xdr_inline_decode(xdr, 8);
3969 xdr_decode_hyper(p, res);
3970 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
3972 dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res);
3975 print_overflow_msg(__func__, xdr);
3979 static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
3985 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
3987 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
3988 p = xdr_inline_decode(xdr, 8);
3991 xdr_decode_hyper(p, used);
3992 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
3993 ret = NFS_ATTR_FATTR_SPACE_USED;
3995 dprintk("%s: space used=%Lu\n", __func__,
3996 (unsigned long long)*used);
3999 print_overflow_msg(__func__, xdr);
4003 static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
4009 p = xdr_inline_decode(xdr, 12);
4012 p = xdr_decode_hyper(p, &sec);
4013 nsec = be32_to_cpup(p);
4014 time->tv_sec = (time_t)sec;
4015 time->tv_nsec = (long)nsec;
4018 print_overflow_msg(__func__, xdr);
4022 static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4028 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U)))
4030 if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) {
4031 status = decode_attr_time(xdr, time);
4033 status = NFS_ATTR_FATTR_ATIME;
4034 bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
4036 dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec);
4040 static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4046 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U)))
4048 if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) {
4049 status = decode_attr_time(xdr, time);
4051 status = NFS_ATTR_FATTR_CTIME;
4052 bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
4054 dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec);
4058 static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap,
4059 struct timespec *time)
4065 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U)))
4067 if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) {
4068 status = decode_attr_time(xdr, time);
4069 bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA;
4071 dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec,
4072 (long)time->tv_nsec);
4076 static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
4082 if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U)))
4084 if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) {
4085 status = decode_attr_time(xdr, time);
4087 status = NFS_ATTR_FATTR_MTIME;
4088 bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
4090 dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec);
4094 static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen)
4096 unsigned int attrwords = XDR_QUADLEN(attrlen);
4097 unsigned int nwords = xdr->p - savep;
4099 if (unlikely(attrwords != nwords)) {
4100 dprintk("%s: server returned incorrect attribute length: "
4104 (attrwords < nwords) ? '<' : '>',
4111 static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4115 p = xdr_inline_decode(xdr, 20);
4118 cinfo->atomic = be32_to_cpup(p++);
4119 p = xdr_decode_hyper(p, &cinfo->before);
4120 xdr_decode_hyper(p, &cinfo->after);
4123 print_overflow_msg(__func__, xdr);
4127 static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
4133 status = decode_op_hdr(xdr, OP_ACCESS);
4136 p = xdr_inline_decode(xdr, 8);
4139 supp = be32_to_cpup(p++);
4140 acc = be32_to_cpup(p);
4141 access->supported = supp;
4142 access->access = acc;
4145 print_overflow_msg(__func__, xdr);
4149 static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len)
4153 p = xdr_inline_decode(xdr, len);
4155 memcpy(buf, p, len);
4158 print_overflow_msg(__func__, xdr);
4162 static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
4164 return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE);
4167 static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
4171 status = decode_op_hdr(xdr, OP_CLOSE);
4173 nfs_increment_open_seqid(status, res->seqid);
4175 status = decode_stateid(xdr, &res->stateid);
4179 static int decode_verifier(struct xdr_stream *xdr, void *verifier)
4181 return decode_opaque_fixed(xdr, verifier, 8);
4184 static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
4188 status = decode_op_hdr(xdr, OP_COMMIT);
4190 status = decode_verifier(xdr, res->verf->verifier);
4194 static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4200 status = decode_op_hdr(xdr, OP_CREATE);
4203 if ((status = decode_change_info(xdr, cinfo)))
4205 p = xdr_inline_decode(xdr, 4);
4208 bmlen = be32_to_cpup(p);
4209 p = xdr_inline_decode(xdr, bmlen << 2);
4213 print_overflow_msg(__func__, xdr);
4217 static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
4220 uint32_t attrlen, bitmap[3] = {0};
4223 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4225 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4227 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4229 if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0)
4231 if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0)
4233 if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0)
4235 if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0)
4237 status = verify_attr_len(xdr, savep, attrlen);
4239 dprintk("%s: xdr returned %d!\n", __func__, -status);
4243 static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
4246 uint32_t attrlen, bitmap[3] = {0};
4249 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4251 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4253 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4256 if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0)
4258 if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0)
4260 if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0)
4262 if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0)
4264 if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0)
4266 if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0)
4269 status = verify_attr_len(xdr, savep, attrlen);
4271 dprintk("%s: xdr returned %d!\n", __func__, -status);
4275 static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
4278 uint32_t attrlen, bitmap[3] = {0};
4281 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4283 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4285 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4288 if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0)
4290 if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0)
4293 status = verify_attr_len(xdr, savep, attrlen);
4295 dprintk("%s: xdr returned %d!\n", __func__, -status);
4299 static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap,
4300 struct nfs_fattr *fattr, struct nfs_fh *fh,
4301 const struct nfs_server *server, int may_sleep)
4308 status = decode_attr_type(xdr, bitmap, &type);
4313 fattr->mode |= nfs_type2fmt[type];
4314 fattr->valid |= status;
4317 status = decode_attr_change(xdr, bitmap, &fattr->change_attr);
4320 fattr->valid |= status;
4322 status = decode_attr_size(xdr, bitmap, &fattr->size);
4325 fattr->valid |= status;
4327 status = decode_attr_fsid(xdr, bitmap, &fattr->fsid);
4330 fattr->valid |= status;
4333 status = decode_attr_error(xdr, bitmap, &err);
4336 if (err == -NFS4ERR_WRONGSEC)
4337 nfs_fixup_secinfo_attributes(fattr, fh);
4339 status = decode_attr_filehandle(xdr, bitmap, fh);
4343 status = decode_attr_fileid(xdr, bitmap, &fattr->fileid);
4346 fattr->valid |= status;
4348 status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr,
4349 struct nfs4_fs_locations,
4353 fattr->valid |= status;
4355 status = decode_attr_mode(xdr, bitmap, &fmode);
4359 fattr->mode |= fmode;
4360 fattr->valid |= status;
4363 status = decode_attr_nlink(xdr, bitmap, &fattr->nlink);
4366 fattr->valid |= status;
4368 status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, may_sleep);
4371 fattr->valid |= status;
4373 status = decode_attr_group(xdr, bitmap, server, &fattr->gid, may_sleep);
4376 fattr->valid |= status;
4378 status = decode_attr_rdev(xdr, bitmap, &fattr->rdev);
4381 fattr->valid |= status;
4383 status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used);
4386 fattr->valid |= status;
4388 status = decode_attr_time_access(xdr, bitmap, &fattr->atime);
4391 fattr->valid |= status;
4393 status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime);
4396 fattr->valid |= status;
4398 status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime);
4401 fattr->valid |= status;
4403 status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid);
4406 fattr->valid |= status;
4409 dprintk("%s: xdr returned %d\n", __func__, -status);
4413 static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr,
4414 struct nfs_fh *fh, const struct nfs_server *server, int may_sleep)
4421 status = decode_op_hdr(xdr, OP_GETATTR);
4425 status = decode_attr_bitmap(xdr, bitmap);
4429 status = decode_attr_length(xdr, &attrlen, &savep);
4433 status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, server, may_sleep);
4437 status = verify_attr_len(xdr, savep, attrlen);
4439 dprintk("%s: xdr returned %d\n", __func__, -status);
4443 static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr,
4444 const struct nfs_server *server, int may_sleep)
4446 return decode_getfattr_generic(xdr, fattr, NULL, server, may_sleep);
4450 * Decode potentially multiple layout types. Currently we only support
4451 * one layout driver per file system.
4453 static int decode_first_pnfs_layout_type(struct xdr_stream *xdr,
4454 uint32_t *layouttype)
4459 p = xdr_inline_decode(xdr, 4);
4462 num = be32_to_cpup(p);
4464 /* pNFS is not supported by the underlying file system */
4470 printk(KERN_INFO "%s: Warning: Multiple pNFS layout drivers "
4471 "per filesystem not supported\n", __func__);
4473 /* Decode and set first layout type, move xdr->p past unused types */
4474 p = xdr_inline_decode(xdr, num * 4);
4477 *layouttype = be32_to_cpup(p);
4480 print_overflow_msg(__func__, xdr);
4485 * The type of file system exported.
4486 * Note we must ensure that layouttype is set in any non-error case.
4488 static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap,
4489 uint32_t *layouttype)
4493 dprintk("%s: bitmap is %x\n", __func__, bitmap[1]);
4494 if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U)))
4496 if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) {
4497 status = decode_first_pnfs_layout_type(xdr, layouttype);
4498 bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES;
4505 * The prefered block size for layout directed io
4507 static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap,
4512 dprintk("%s: bitmap is %x\n", __func__, bitmap[2]);
4514 if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) {
4515 p = xdr_inline_decode(xdr, 4);
4517 print_overflow_msg(__func__, xdr);
4520 *res = be32_to_cpup(p);
4521 bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE;
4526 static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
4529 uint32_t attrlen, bitmap[3];
4532 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4534 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4536 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
4539 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */
4541 if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0)
4543 if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0)
4545 if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0)
4547 fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax;
4548 if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)
4550 fsinfo->wtpref = fsinfo->wtmax;
4551 status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta);
4554 status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype);
4557 status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize);
4561 status = verify_attr_len(xdr, savep, attrlen);
4563 dprintk("%s: xdr returned %d!\n", __func__, -status);
4567 static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
4573 /* Zero handle first to allow comparisons */
4574 memset(fh, 0, sizeof(*fh));
4576 status = decode_op_hdr(xdr, OP_GETFH);
4580 p = xdr_inline_decode(xdr, 4);
4583 len = be32_to_cpup(p);
4584 if (len > NFS4_FHSIZE)
4587 p = xdr_inline_decode(xdr, len);
4590 memcpy(fh->data, p, len);
4593 print_overflow_msg(__func__, xdr);
4597 static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4601 status = decode_op_hdr(xdr, OP_LINK);
4604 return decode_change_info(xdr, cinfo);
4608 * We create the owner, so we know a proper owner.id length is 4.
4610 static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
4612 uint64_t offset, length, clientid;
4614 uint32_t namelen, type;
4616 p = xdr_inline_decode(xdr, 32); /* read 32 bytes */
4619 p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */
4620 p = xdr_decode_hyper(p, &length);
4621 type = be32_to_cpup(p++); /* 4 byte read */
4622 if (fl != NULL) { /* manipulate file lock */
4623 fl->fl_start = (loff_t)offset;
4624 fl->fl_end = fl->fl_start + (loff_t)length - 1;
4625 if (length == ~(uint64_t)0)
4626 fl->fl_end = OFFSET_MAX;
4627 fl->fl_type = F_WRLCK;
4629 fl->fl_type = F_RDLCK;
4632 p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */
4633 namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */
4634 p = xdr_inline_decode(xdr, namelen); /* variable size field */
4636 return -NFS4ERR_DENIED;
4638 print_overflow_msg(__func__, xdr);
4642 static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res)
4646 status = decode_op_hdr(xdr, OP_LOCK);
4650 status = decode_stateid(xdr, &res->stateid);
4651 if (unlikely(status))
4653 } else if (status == -NFS4ERR_DENIED)
4654 status = decode_lock_denied(xdr, NULL);
4655 if (res->open_seqid != NULL)
4656 nfs_increment_open_seqid(status, res->open_seqid);
4657 nfs_increment_lock_seqid(status, res->lock_seqid);
4662 static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res)
4665 status = decode_op_hdr(xdr, OP_LOCKT);
4666 if (status == -NFS4ERR_DENIED)
4667 return decode_lock_denied(xdr, res->denied);
4671 static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
4675 status = decode_op_hdr(xdr, OP_LOCKU);
4677 nfs_increment_lock_seqid(status, res->seqid);
4679 status = decode_stateid(xdr, &res->stateid);
4683 static int decode_release_lockowner(struct xdr_stream *xdr)
4685 return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER);
4688 static int decode_lookup(struct xdr_stream *xdr)
4690 return decode_op_hdr(xdr, OP_LOOKUP);
4693 /* This is too sick! */
4694 static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
4697 uint32_t limit_type, nblocks, blocksize;
4699 p = xdr_inline_decode(xdr, 12);
4702 limit_type = be32_to_cpup(p++);
4703 switch (limit_type) {
4705 xdr_decode_hyper(p, maxsize);
4708 nblocks = be32_to_cpup(p++);
4709 blocksize = be32_to_cpup(p);
4710 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
4714 print_overflow_msg(__func__, xdr);
4718 static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
4721 uint32_t delegation_type;
4724 p = xdr_inline_decode(xdr, 4);
4727 delegation_type = be32_to_cpup(p);
4728 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
4729 res->delegation_type = 0;
4732 status = decode_stateid(xdr, &res->delegation);
4733 if (unlikely(status))
4735 p = xdr_inline_decode(xdr, 4);
4738 res->do_recall = be32_to_cpup(p);
4740 switch (delegation_type) {
4741 case NFS4_OPEN_DELEGATE_READ:
4742 res->delegation_type = FMODE_READ;
4744 case NFS4_OPEN_DELEGATE_WRITE:
4745 res->delegation_type = FMODE_WRITE|FMODE_READ;
4746 if (decode_space_limit(xdr, &res->maxsize) < 0)
4749 return decode_ace(xdr, NULL, res->server->nfs_client);
4751 print_overflow_msg(__func__, xdr);
4755 static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
4758 uint32_t savewords, bmlen, i;
4761 if (!__decode_op_hdr(xdr, OP_OPEN, &status))
4763 nfs_increment_open_seqid(status, res->seqid);
4766 status = decode_stateid(xdr, &res->stateid);
4767 if (unlikely(status))
4770 decode_change_info(xdr, &res->cinfo);
4772 p = xdr_inline_decode(xdr, 8);
4775 res->rflags = be32_to_cpup(p++);
4776 bmlen = be32_to_cpup(p);
4780 p = xdr_inline_decode(xdr, bmlen << 2);
4783 savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE);
4784 for (i = 0; i < savewords; ++i)
4785 res->attrset[i] = be32_to_cpup(p++);
4786 for (; i < NFS4_BITMAP_SIZE; i++)
4787 res->attrset[i] = 0;
4789 return decode_delegation(xdr, res);
4791 dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen);
4794 print_overflow_msg(__func__, xdr);
4798 static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
4802 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
4804 nfs_increment_open_seqid(status, res->seqid);
4806 status = decode_stateid(xdr, &res->stateid);
4810 static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
4814 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
4816 nfs_increment_open_seqid(status, res->seqid);
4818 status = decode_stateid(xdr, &res->stateid);
4822 static int decode_putfh(struct xdr_stream *xdr)
4824 return decode_op_hdr(xdr, OP_PUTFH);
4827 static int decode_putrootfh(struct xdr_stream *xdr)
4829 return decode_op_hdr(xdr, OP_PUTROOTFH);
4832 static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res)
4834 struct kvec *iov = req->rq_rcv_buf.head;
4836 uint32_t count, eof, recvd, hdrlen;
4839 status = decode_op_hdr(xdr, OP_READ);
4842 p = xdr_inline_decode(xdr, 8);
4845 eof = be32_to_cpup(p++);
4846 count = be32_to_cpup(p);
4847 hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base;
4848 recvd = req->rq_rcv_buf.len - hdrlen;
4849 if (count > recvd) {
4850 dprintk("NFS: server cheating in read reply: "
4851 "count %u > recvd %u\n", count, recvd);
4855 xdr_read_pages(xdr, count);
4860 print_overflow_msg(__func__, xdr);
4864 static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
4866 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
4867 struct kvec *iov = rcvbuf->head;
4869 u32 recvd, pglen = rcvbuf->page_len;
4872 status = decode_op_hdr(xdr, OP_READDIR);
4874 status = decode_verifier(xdr, readdir->verifier.data);
4875 if (unlikely(status))
4877 dprintk("%s: verifier = %08x:%08x\n",
4879 ((u32 *)readdir->verifier.data)[0],
4880 ((u32 *)readdir->verifier.data)[1]);
4883 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
4884 recvd = rcvbuf->len - hdrlen;
4887 xdr_read_pages(xdr, pglen);
4893 static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
4895 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
4896 struct kvec *iov = rcvbuf->head;
4902 status = decode_op_hdr(xdr, OP_READLINK);
4906 /* Convert length of symlink */
4907 p = xdr_inline_decode(xdr, 4);
4910 len = be32_to_cpup(p);
4911 if (len >= rcvbuf->page_len || len <= 0) {
4912 dprintk("nfs: server returned giant symlink!\n");
4913 return -ENAMETOOLONG;
4915 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
4916 recvd = req->rq_rcv_buf.len - hdrlen;
4918 dprintk("NFS: server cheating in readlink reply: "
4919 "count %u > recvd %u\n", len, recvd);
4922 xdr_read_pages(xdr, len);
4924 * The XDR encode routine has set things up so that
4925 * the link text will be copied directly into the
4926 * buffer. We just have to do overflow-checking,
4927 * and and null-terminate the text (the VFS expects
4928 * null-termination).
4930 xdr_terminate_string(rcvbuf, len);
4933 print_overflow_msg(__func__, xdr);
4937 static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
4941 status = decode_op_hdr(xdr, OP_REMOVE);
4944 status = decode_change_info(xdr, cinfo);
4949 static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo,
4950 struct nfs4_change_info *new_cinfo)
4954 status = decode_op_hdr(xdr, OP_RENAME);
4957 if ((status = decode_change_info(xdr, old_cinfo)))
4959 status = decode_change_info(xdr, new_cinfo);
4964 static int decode_renew(struct xdr_stream *xdr)
4966 return decode_op_hdr(xdr, OP_RENEW);
4970 decode_restorefh(struct xdr_stream *xdr)
4972 return decode_op_hdr(xdr, OP_RESTOREFH);
4975 static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
4976 struct nfs_getaclres *res)
4978 __be32 *savep, *bm_p;
4981 struct kvec *iov = req->rq_rcv_buf.head;
4983 size_t page_len = xdr->buf->page_len;
4986 if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
4990 res->acl_data_offset = be32_to_cpup(bm_p) + 2;
4991 res->acl_data_offset <<= 2;
4992 /* Check if the acl data starts beyond the allocated buffer */
4993 if (res->acl_data_offset > page_len)
4996 if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
4998 if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
5001 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U)))
5003 if (likely(bitmap[0] & FATTR4_WORD0_ACL)) {
5006 /* The bitmap (xdr len + bitmaps) and the attr xdr len words
5007 * are stored with the acl data to handle the problem of
5008 * variable length bitmaps.*/
5011 /* We ignore &savep and don't do consistency checks on
5012 * the attr length. Let userspace figure it out.... */
5013 hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base;
5014 attrlen += res->acl_data_offset;
5015 if (attrlen > page_len) {
5016 if (res->acl_flags & NFS4_ACL_LEN_REQUEST) {
5017 /* getxattr interface called with a NULL buf */
5018 res->acl_len = attrlen;
5021 dprintk("NFS: acl reply: attrlen %u > page_len %zu\n",
5025 xdr_read_pages(xdr, attrlen);
5026 res->acl_len = attrlen;
5028 status = -EOPNOTSUPP;
5035 decode_savefh(struct xdr_stream *xdr)
5037 return decode_op_hdr(xdr, OP_SAVEFH);
5040 static int decode_setattr(struct xdr_stream *xdr)
5046 status = decode_op_hdr(xdr, OP_SETATTR);
5049 p = xdr_inline_decode(xdr, 4);
5052 bmlen = be32_to_cpup(p);
5053 p = xdr_inline_decode(xdr, bmlen << 2);
5057 print_overflow_msg(__func__, xdr);
5061 static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res)
5067 p = xdr_inline_decode(xdr, 8);
5070 opnum = be32_to_cpup(p++);
5071 if (opnum != OP_SETCLIENTID) {
5072 dprintk("nfs: decode_setclientid: Server returned operation"
5076 nfserr = be32_to_cpup(p);
5077 if (nfserr == NFS_OK) {
5078 p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE);
5081 p = xdr_decode_hyper(p, &res->clientid);
5082 memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE);
5083 } else if (nfserr == NFSERR_CLID_INUSE) {
5086 /* skip netid string */
5087 p = xdr_inline_decode(xdr, 4);
5090 len = be32_to_cpup(p);
5091 p = xdr_inline_decode(xdr, len);
5095 /* skip uaddr string */
5096 p = xdr_inline_decode(xdr, 4);
5099 len = be32_to_cpup(p);
5100 p = xdr_inline_decode(xdr, len);
5103 return -NFSERR_CLID_INUSE;
5105 return nfs4_stat_to_errno(nfserr);
5109 print_overflow_msg(__func__, xdr);
5113 static int decode_setclientid_confirm(struct xdr_stream *xdr)
5115 return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM);
5118 static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
5123 status = decode_op_hdr(xdr, OP_WRITE);
5127 p = xdr_inline_decode(xdr, 16);
5130 res->count = be32_to_cpup(p++);
5131 res->verf->committed = be32_to_cpup(p++);
5132 memcpy(res->verf->verifier, p, 8);
5135 print_overflow_msg(__func__, xdr);
5139 static int decode_delegreturn(struct xdr_stream *xdr)
5141 return decode_op_hdr(xdr, OP_DELEGRETURN);
5144 static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor)
5148 p = xdr_inline_decode(xdr, 4);
5151 flavor->gss.sec_oid4.len = be32_to_cpup(p);
5152 if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN)
5155 p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len);
5158 memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len);
5160 p = xdr_inline_decode(xdr, 8);
5163 flavor->gss.qop4 = be32_to_cpup(p++);
5164 flavor->gss.service = be32_to_cpup(p);
5169 print_overflow_msg(__func__, xdr);
5175 static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
5177 struct nfs4_secinfo_flavor *sec_flavor;
5182 status = decode_op_hdr(xdr, OP_SECINFO);
5185 p = xdr_inline_decode(xdr, 4);
5189 res->flavors->num_flavors = 0;
5190 num_flavors = be32_to_cpup(p);
5192 for (i = 0; i < num_flavors; i++) {
5193 sec_flavor = &res->flavors->flavors[i];
5194 if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE)
5197 p = xdr_inline_decode(xdr, 4);
5200 sec_flavor->flavor = be32_to_cpup(p);
5202 if (sec_flavor->flavor == RPC_AUTH_GSS) {
5203 status = decode_secinfo_gss(xdr, sec_flavor);
5207 res->flavors->num_flavors++;
5213 print_overflow_msg(__func__, xdr);
5217 #if defined(CONFIG_NFS_V4_1)
5218 static int decode_exchange_id(struct xdr_stream *xdr,
5219 struct nfs41_exchange_id_res *res)
5225 struct nfs_client *clp = res->client;
5227 status = decode_op_hdr(xdr, OP_EXCHANGE_ID);
5231 p = xdr_inline_decode(xdr, 8);
5234 xdr_decode_hyper(p, &clp->cl_clientid);
5235 p = xdr_inline_decode(xdr, 12);
5238 clp->cl_seqid = be32_to_cpup(p++);
5239 clp->cl_exchange_flags = be32_to_cpup(p++);
5241 /* We ask for SP4_NONE */
5242 dummy = be32_to_cpup(p);
5243 if (dummy != SP4_NONE)
5246 /* Throw away minor_id */
5247 p = xdr_inline_decode(xdr, 8);
5251 /* Throw away Major id */
5252 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5253 if (unlikely(status))
5256 /* Save server_scope */
5257 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5258 if (unlikely(status))
5261 if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
5264 memcpy(res->server_scope->server_scope, dummy_str, dummy);
5265 res->server_scope->server_scope_sz = dummy;
5267 /* Throw away Implementation id array */
5268 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
5269 if (unlikely(status))
5274 print_overflow_msg(__func__, xdr);
5278 static int decode_chan_attrs(struct xdr_stream *xdr,
5279 struct nfs4_channel_attrs *attrs)
5284 p = xdr_inline_decode(xdr, 28);
5287 val = be32_to_cpup(p++); /* headerpadsz */
5289 return -EINVAL; /* no support for header padding yet */
5290 attrs->max_rqst_sz = be32_to_cpup(p++);
5291 attrs->max_resp_sz = be32_to_cpup(p++);
5292 attrs->max_resp_sz_cached = be32_to_cpup(p++);
5293 attrs->max_ops = be32_to_cpup(p++);
5294 attrs->max_reqs = be32_to_cpup(p++);
5295 nr_attrs = be32_to_cpup(p);
5296 if (unlikely(nr_attrs > 1)) {
5297 printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n",
5298 __func__, nr_attrs);
5301 if (nr_attrs == 1) {
5302 p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */
5308 print_overflow_msg(__func__, xdr);
5312 static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid)
5314 return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN);
5317 static int decode_create_session(struct xdr_stream *xdr,
5318 struct nfs41_create_session_res *res)
5322 struct nfs_client *clp = res->client;
5323 struct nfs4_session *session = clp->cl_session;
5325 status = decode_op_hdr(xdr, OP_CREATE_SESSION);
5327 status = decode_sessionid(xdr, &session->sess_id);
5328 if (unlikely(status))
5332 p = xdr_inline_decode(xdr, 8);
5335 clp->cl_seqid = be32_to_cpup(p++);
5336 session->flags = be32_to_cpup(p);
5338 /* Channel attributes */
5339 status = decode_chan_attrs(xdr, &session->fc_attrs);
5341 status = decode_chan_attrs(xdr, &session->bc_attrs);
5344 print_overflow_msg(__func__, xdr);
5348 static int decode_destroy_session(struct xdr_stream *xdr, void *dummy)
5350 return decode_op_hdr(xdr, OP_DESTROY_SESSION);
5353 static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy)
5355 return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE);
5357 #endif /* CONFIG_NFS_V4_1 */
5359 static int decode_sequence(struct xdr_stream *xdr,
5360 struct nfs4_sequence_res *res,
5361 struct rpc_rqst *rqstp)
5363 #if defined(CONFIG_NFS_V4_1)
5364 struct nfs4_sessionid id;
5369 if (!res->sr_session)
5372 status = decode_op_hdr(xdr, OP_SEQUENCE);
5374 status = decode_sessionid(xdr, &id);
5375 if (unlikely(status))
5379 * If the server returns different values for sessionID, slotID or
5380 * sequence number, the server is looney tunes.
5382 status = -EREMOTEIO;
5384 if (memcmp(id.data, res->sr_session->sess_id.data,
5385 NFS4_MAX_SESSIONID_LEN)) {
5386 dprintk("%s Invalid session id\n", __func__);
5390 p = xdr_inline_decode(xdr, 20);
5395 dummy = be32_to_cpup(p++);
5396 if (dummy != res->sr_slot->seq_nr) {
5397 dprintk("%s Invalid sequence number\n", __func__);
5401 dummy = be32_to_cpup(p++);
5402 if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) {
5403 dprintk("%s Invalid slot id\n", __func__);
5406 /* highest slot id - currently not processed */
5407 dummy = be32_to_cpup(p++);
5408 /* target highest slot id - currently not processed */
5409 dummy = be32_to_cpup(p++);
5411 res->sr_status_flags = be32_to_cpup(p);
5414 res->sr_status = status;
5417 print_overflow_msg(__func__, xdr);
5420 #else /* CONFIG_NFS_V4_1 */
5422 #endif /* CONFIG_NFS_V4_1 */
5425 #if defined(CONFIG_NFS_V4_1)
5427 * TODO: Need to handle case when EOF != true;
5429 static int decode_getdevicelist(struct xdr_stream *xdr,
5430 struct pnfs_devicelist *res)
5434 struct nfs_writeverf verftemp;
5436 status = decode_op_hdr(xdr, OP_GETDEVICELIST);
5440 p = xdr_inline_decode(xdr, 8 + 8 + 4);
5444 /* TODO: Skip cookie for now */
5448 p = xdr_decode_opaque_fixed(p, verftemp.verifier, 8);
5450 res->num_devs = be32_to_cpup(p);
5452 dprintk("%s: num_dev %d\n", __func__, res->num_devs);
5454 if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) {
5455 printk(KERN_ERR "%s too many result dev_num %u\n",
5456 __func__, res->num_devs);
5460 p = xdr_inline_decode(xdr,
5461 res->num_devs * NFS4_DEVICEID4_SIZE + 4);
5464 for (i = 0; i < res->num_devs; i++)
5465 p = xdr_decode_opaque_fixed(p, res->dev_id[i].data,
5466 NFS4_DEVICEID4_SIZE);
5467 res->eof = be32_to_cpup(p);
5470 print_overflow_msg(__func__, xdr);
5474 static int decode_getdeviceinfo(struct xdr_stream *xdr,
5475 struct pnfs_device *pdev)
5481 status = decode_op_hdr(xdr, OP_GETDEVICEINFO);
5483 if (status == -ETOOSMALL) {
5484 p = xdr_inline_decode(xdr, 4);
5487 pdev->mincount = be32_to_cpup(p);
5488 dprintk("%s: Min count too small. mincnt = %u\n",
5489 __func__, pdev->mincount);
5494 p = xdr_inline_decode(xdr, 8);
5497 type = be32_to_cpup(p++);
5498 if (type != pdev->layout_type) {
5499 dprintk("%s: layout mismatch req: %u pdev: %u\n",
5500 __func__, pdev->layout_type, type);
5504 * Get the length of the opaque device_addr4. xdr_read_pages places
5505 * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages)
5506 * and places the remaining xdr data in xdr_buf->tail
5508 pdev->mincount = be32_to_cpup(p);
5509 xdr_read_pages(xdr, pdev->mincount); /* include space for the length */
5511 /* Parse notification bitmap, verifying that it is zero. */
5512 p = xdr_inline_decode(xdr, 4);
5515 len = be32_to_cpup(p);
5519 p = xdr_inline_decode(xdr, 4 * len);
5522 for (i = 0; i < len; i++, p++) {
5523 if (be32_to_cpup(p)) {
5524 dprintk("%s: notifications not supported\n",
5532 print_overflow_msg(__func__, xdr);
5536 static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
5537 struct nfs4_layoutget_res *res)
5542 struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
5543 struct kvec *iov = rcvbuf->head;
5546 status = decode_op_hdr(xdr, OP_LAYOUTGET);
5549 p = xdr_inline_decode(xdr, 8 + NFS4_STATEID_SIZE);
5552 res->return_on_close = be32_to_cpup(p++);
5553 p = xdr_decode_opaque_fixed(p, res->stateid.data, NFS4_STATEID_SIZE);
5554 layout_count = be32_to_cpup(p);
5555 if (!layout_count) {
5556 dprintk("%s: server responded with empty layout array\n",
5561 p = xdr_inline_decode(xdr, 28);
5564 p = xdr_decode_hyper(p, &res->range.offset);
5565 p = xdr_decode_hyper(p, &res->range.length);
5566 res->range.iomode = be32_to_cpup(p++);
5567 res->type = be32_to_cpup(p++);
5568 res->layoutp->len = be32_to_cpup(p);
5570 dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n",
5572 (unsigned long)res->range.offset,
5573 (unsigned long)res->range.length,
5578 hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base;
5579 recvd = req->rq_rcv_buf.len - hdrlen;
5580 if (res->layoutp->len > recvd) {
5581 dprintk("NFS: server cheating in layoutget reply: "
5582 "layout len %u > recvd %u\n",
5583 res->layoutp->len, recvd);
5587 xdr_read_pages(xdr, res->layoutp->len);
5589 if (layout_count > 1) {
5590 /* We only handle a length one array at the moment. Any
5591 * further entries are just ignored. Note that this means
5592 * the client may see a response that is less than the
5593 * minimum it requested.
5595 dprintk("%s: server responded with %d layouts, dropping tail\n",
5596 __func__, layout_count);
5601 print_overflow_msg(__func__, xdr);
5605 static int decode_layoutreturn(struct xdr_stream *xdr,
5606 struct nfs4_layoutreturn_res *res)
5611 status = decode_op_hdr(xdr, OP_LAYOUTRETURN);
5614 p = xdr_inline_decode(xdr, 4);
5617 res->lrs_present = be32_to_cpup(p);
5618 if (res->lrs_present)
5619 status = decode_stateid(xdr, &res->stateid);
5622 print_overflow_msg(__func__, xdr);
5626 static int decode_layoutcommit(struct xdr_stream *xdr,
5627 struct rpc_rqst *req,
5628 struct nfs4_layoutcommit_res *res)
5634 status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT);
5635 res->status = status;
5639 p = xdr_inline_decode(xdr, 4);
5642 sizechanged = be32_to_cpup(p);
5645 /* throw away new size */
5646 p = xdr_inline_decode(xdr, 8);
5652 print_overflow_msg(__func__, xdr);
5656 static int decode_test_stateid(struct xdr_stream *xdr,
5657 struct nfs41_test_stateid_res *res)
5663 status = decode_op_hdr(xdr, OP_TEST_STATEID);
5667 p = xdr_inline_decode(xdr, 4);
5670 num_res = be32_to_cpup(p++);
5674 p = xdr_inline_decode(xdr, 4);
5677 res->status = be32_to_cpup(p++);
5680 print_overflow_msg(__func__, xdr);
5685 static int decode_free_stateid(struct xdr_stream *xdr,
5686 struct nfs41_free_stateid_res *res)
5691 status = decode_op_hdr(xdr, OP_FREE_STATEID);
5695 p = xdr_inline_decode(xdr, 4);
5698 res->status = be32_to_cpup(p++);
5701 print_overflow_msg(__func__, xdr);
5704 #endif /* CONFIG_NFS_V4_1 */
5707 * END OF "GENERIC" DECODE ROUTINES.
5711 * Decode OPEN_DOWNGRADE response
5713 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp,
5714 struct xdr_stream *xdr,
5715 struct nfs_closeres *res)
5717 struct compound_hdr hdr;
5720 status = decode_compound_hdr(xdr, &hdr);
5723 status = decode_sequence(xdr, &res->seq_res, rqstp);
5726 status = decode_putfh(xdr);
5729 status = decode_open_downgrade(xdr, res);
5732 decode_getfattr(xdr, res->fattr, res->server,
5733 !RPC_IS_ASYNC(rqstp->rq_task));
5739 * Decode ACCESS response
5741 static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5742 struct nfs4_accessres *res)
5744 struct compound_hdr hdr;
5747 status = decode_compound_hdr(xdr, &hdr);
5750 status = decode_sequence(xdr, &res->seq_res, rqstp);
5753 status = decode_putfh(xdr);
5756 status = decode_access(xdr, res);
5759 decode_getfattr(xdr, res->fattr, res->server,
5760 !RPC_IS_ASYNC(rqstp->rq_task));
5766 * Decode LOOKUP response
5768 static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5769 struct nfs4_lookup_res *res)
5771 struct compound_hdr hdr;
5774 status = decode_compound_hdr(xdr, &hdr);
5777 status = decode_sequence(xdr, &res->seq_res, rqstp);
5780 status = decode_putfh(xdr);
5783 status = decode_lookup(xdr);
5786 status = decode_getfh(xdr, res->fh);
5789 status = decode_getfattr(xdr, res->fattr, res->server
5790 ,!RPC_IS_ASYNC(rqstp->rq_task));
5796 * Decode LOOKUP_ROOT response
5798 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp,
5799 struct xdr_stream *xdr,
5800 struct nfs4_lookup_res *res)
5802 struct compound_hdr hdr;
5805 status = decode_compound_hdr(xdr, &hdr);
5808 status = decode_sequence(xdr, &res->seq_res, rqstp);
5811 status = decode_putrootfh(xdr);
5814 status = decode_getfh(xdr, res->fh);
5816 status = decode_getfattr(xdr, res->fattr, res->server,
5817 !RPC_IS_ASYNC(rqstp->rq_task));
5823 * Decode REMOVE response
5825 static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5826 struct nfs_removeres *res)
5828 struct compound_hdr hdr;
5831 status = decode_compound_hdr(xdr, &hdr);
5834 status = decode_sequence(xdr, &res->seq_res, rqstp);
5837 status = decode_putfh(xdr);
5840 status = decode_remove(xdr, &res->cinfo);
5843 decode_getfattr(xdr, res->dir_attr, res->server,
5844 !RPC_IS_ASYNC(rqstp->rq_task));
5850 * Decode RENAME response
5852 static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5853 struct nfs_renameres *res)
5855 struct compound_hdr hdr;
5858 status = decode_compound_hdr(xdr, &hdr);
5861 status = decode_sequence(xdr, &res->seq_res, rqstp);
5864 status = decode_putfh(xdr);
5867 status = decode_savefh(xdr);
5870 status = decode_putfh(xdr);
5873 status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo);
5876 /* Current FH is target directory */
5877 if (decode_getfattr(xdr, res->new_fattr, res->server,
5878 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
5880 status = decode_restorefh(xdr);
5883 decode_getfattr(xdr, res->old_fattr, res->server,
5884 !RPC_IS_ASYNC(rqstp->rq_task));
5890 * Decode LINK response
5892 static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5893 struct nfs4_link_res *res)
5895 struct compound_hdr hdr;
5898 status = decode_compound_hdr(xdr, &hdr);
5901 status = decode_sequence(xdr, &res->seq_res, rqstp);
5904 status = decode_putfh(xdr);
5907 status = decode_savefh(xdr);
5910 status = decode_putfh(xdr);
5913 status = decode_link(xdr, &res->cinfo);
5917 * Note order: OP_LINK leaves the directory as the current
5920 if (decode_getfattr(xdr, res->dir_attr, res->server,
5921 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
5923 status = decode_restorefh(xdr);
5926 decode_getfattr(xdr, res->fattr, res->server,
5927 !RPC_IS_ASYNC(rqstp->rq_task));
5933 * Decode CREATE response
5935 static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5936 struct nfs4_create_res *res)
5938 struct compound_hdr hdr;
5941 status = decode_compound_hdr(xdr, &hdr);
5944 status = decode_sequence(xdr, &res->seq_res, rqstp);
5947 status = decode_putfh(xdr);
5950 status = decode_savefh(xdr);
5953 status = decode_create(xdr, &res->dir_cinfo);
5956 status = decode_getfh(xdr, res->fh);
5959 if (decode_getfattr(xdr, res->fattr, res->server,
5960 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
5962 status = decode_restorefh(xdr);
5965 decode_getfattr(xdr, res->dir_fattr, res->server,
5966 !RPC_IS_ASYNC(rqstp->rq_task));
5972 * Decode SYMLINK response
5974 static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5975 struct nfs4_create_res *res)
5977 return nfs4_xdr_dec_create(rqstp, xdr, res);
5981 * Decode GETATTR response
5983 static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
5984 struct nfs4_getattr_res *res)
5986 struct compound_hdr hdr;
5989 status = decode_compound_hdr(xdr, &hdr);
5992 status = decode_sequence(xdr, &res->seq_res, rqstp);
5995 status = decode_putfh(xdr);
5998 status = decode_getfattr(xdr, res->fattr, res->server,
5999 !RPC_IS_ASYNC(rqstp->rq_task));
6005 * Encode an SETACL request
6007 static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr,
6008 struct nfs_setaclargs *args)
6010 struct compound_hdr hdr = {
6011 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
6014 encode_compound_hdr(xdr, req, &hdr);
6015 encode_sequence(xdr, &args->seq_args, &hdr);
6016 encode_putfh(xdr, args->fh, &hdr);
6017 encode_setacl(xdr, args, &hdr);
6022 * Decode SETACL response
6025 nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6026 struct nfs_setaclres *res)
6028 struct compound_hdr hdr;
6031 status = decode_compound_hdr(xdr, &hdr);
6034 status = decode_sequence(xdr, &res->seq_res, rqstp);
6037 status = decode_putfh(xdr);
6040 status = decode_setattr(xdr);
6046 * Decode GETACL response
6049 nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6050 struct nfs_getaclres *res)
6052 struct compound_hdr hdr;
6055 if (res->acl_scratch != NULL) {
6056 void *p = page_address(res->acl_scratch);
6057 xdr_set_scratch_buffer(xdr, p, PAGE_SIZE);
6059 status = decode_compound_hdr(xdr, &hdr);
6062 status = decode_sequence(xdr, &res->seq_res, rqstp);
6065 status = decode_putfh(xdr);
6068 status = decode_getacl(xdr, rqstp, res);
6075 * Decode CLOSE response
6077 static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6078 struct nfs_closeres *res)
6080 struct compound_hdr hdr;
6083 status = decode_compound_hdr(xdr, &hdr);
6086 status = decode_sequence(xdr, &res->seq_res, rqstp);
6089 status = decode_putfh(xdr);
6092 status = decode_close(xdr, res);
6096 * Note: Server may do delete on close for this file
6097 * in which case the getattr call will fail with
6098 * an ESTALE error. Shouldn't be a problem,
6099 * though, since fattr->valid will remain unset.
6101 decode_getfattr(xdr, res->fattr, res->server,
6102 !RPC_IS_ASYNC(rqstp->rq_task));
6108 * Decode OPEN response
6110 static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6111 struct nfs_openres *res)
6113 struct compound_hdr hdr;
6116 status = decode_compound_hdr(xdr, &hdr);
6119 status = decode_sequence(xdr, &res->seq_res, rqstp);
6122 status = decode_putfh(xdr);
6125 status = decode_savefh(xdr);
6128 status = decode_open(xdr, res);
6131 status = decode_getfh(xdr, &res->fh);
6134 if (decode_getfattr(xdr, res->f_attr, res->server,
6135 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
6137 if (decode_restorefh(xdr) != 0)
6139 decode_getfattr(xdr, res->dir_attr, res->server,
6140 !RPC_IS_ASYNC(rqstp->rq_task));
6146 * Decode OPEN_CONFIRM response
6148 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp,
6149 struct xdr_stream *xdr,
6150 struct nfs_open_confirmres *res)
6152 struct compound_hdr hdr;
6155 status = decode_compound_hdr(xdr, &hdr);
6158 status = decode_putfh(xdr);
6161 status = decode_open_confirm(xdr, res);
6167 * Decode OPEN response
6169 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp,
6170 struct xdr_stream *xdr,
6171 struct nfs_openres *res)
6173 struct compound_hdr hdr;
6176 status = decode_compound_hdr(xdr, &hdr);
6179 status = decode_sequence(xdr, &res->seq_res, rqstp);
6182 status = decode_putfh(xdr);
6185 status = decode_open(xdr, res);
6188 decode_getfattr(xdr, res->f_attr, res->server,
6189 !RPC_IS_ASYNC(rqstp->rq_task));
6195 * Decode SETATTR response
6197 static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp,
6198 struct xdr_stream *xdr,
6199 struct nfs_setattrres *res)
6201 struct compound_hdr hdr;
6204 status = decode_compound_hdr(xdr, &hdr);
6207 status = decode_sequence(xdr, &res->seq_res, rqstp);
6210 status = decode_putfh(xdr);
6213 status = decode_setattr(xdr);
6216 decode_getfattr(xdr, res->fattr, res->server,
6217 !RPC_IS_ASYNC(rqstp->rq_task));
6223 * Decode LOCK response
6225 static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6226 struct nfs_lock_res *res)
6228 struct compound_hdr hdr;
6231 status = decode_compound_hdr(xdr, &hdr);
6234 status = decode_sequence(xdr, &res->seq_res, rqstp);
6237 status = decode_putfh(xdr);
6240 status = decode_lock(xdr, res);
6246 * Decode LOCKT response
6248 static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6249 struct nfs_lockt_res *res)
6251 struct compound_hdr hdr;
6254 status = decode_compound_hdr(xdr, &hdr);
6257 status = decode_sequence(xdr, &res->seq_res, rqstp);
6260 status = decode_putfh(xdr);
6263 status = decode_lockt(xdr, res);
6269 * Decode LOCKU response
6271 static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6272 struct nfs_locku_res *res)
6274 struct compound_hdr hdr;
6277 status = decode_compound_hdr(xdr, &hdr);
6280 status = decode_sequence(xdr, &res->seq_res, rqstp);
6283 status = decode_putfh(xdr);
6286 status = decode_locku(xdr, res);
6291 static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp,
6292 struct xdr_stream *xdr, void *dummy)
6294 struct compound_hdr hdr;
6297 status = decode_compound_hdr(xdr, &hdr);
6299 status = decode_release_lockowner(xdr);
6304 * Decode READLINK response
6306 static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp,
6307 struct xdr_stream *xdr,
6308 struct nfs4_readlink_res *res)
6310 struct compound_hdr hdr;
6313 status = decode_compound_hdr(xdr, &hdr);
6316 status = decode_sequence(xdr, &res->seq_res, rqstp);
6319 status = decode_putfh(xdr);
6322 status = decode_readlink(xdr, rqstp);
6328 * Decode READDIR response
6330 static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6331 struct nfs4_readdir_res *res)
6333 struct compound_hdr hdr;
6336 status = decode_compound_hdr(xdr, &hdr);
6339 status = decode_sequence(xdr, &res->seq_res, rqstp);
6342 status = decode_putfh(xdr);
6345 status = decode_readdir(xdr, rqstp, res);
6351 * Decode Read response
6353 static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6354 struct nfs_readres *res)
6356 struct compound_hdr hdr;
6359 status = decode_compound_hdr(xdr, &hdr);
6362 status = decode_sequence(xdr, &res->seq_res, rqstp);
6365 status = decode_putfh(xdr);
6368 status = decode_read(xdr, rqstp, res);
6370 status = res->count;
6376 * Decode WRITE response
6378 static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6379 struct nfs_writeres *res)
6381 struct compound_hdr hdr;
6384 status = decode_compound_hdr(xdr, &hdr);
6387 status = decode_sequence(xdr, &res->seq_res, rqstp);
6390 status = decode_putfh(xdr);
6393 status = decode_write(xdr, res);
6397 decode_getfattr(xdr, res->fattr, res->server,
6398 !RPC_IS_ASYNC(rqstp->rq_task));
6400 status = res->count;
6406 * Decode COMMIT response
6408 static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6409 struct nfs_writeres *res)
6411 struct compound_hdr hdr;
6414 status = decode_compound_hdr(xdr, &hdr);
6417 status = decode_sequence(xdr, &res->seq_res, rqstp);
6420 status = decode_putfh(xdr);
6423 status = decode_commit(xdr, res);
6427 decode_getfattr(xdr, res->fattr, res->server,
6428 !RPC_IS_ASYNC(rqstp->rq_task));
6434 * Decode FSINFO response
6436 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
6437 struct nfs4_fsinfo_res *res)
6439 struct compound_hdr hdr;
6442 status = decode_compound_hdr(xdr, &hdr);
6444 status = decode_sequence(xdr, &res->seq_res, req);
6446 status = decode_putfh(xdr);
6448 status = decode_fsinfo(xdr, res->fsinfo);
6453 * Decode PATHCONF response
6455 static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
6456 struct nfs4_pathconf_res *res)
6458 struct compound_hdr hdr;
6461 status = decode_compound_hdr(xdr, &hdr);
6463 status = decode_sequence(xdr, &res->seq_res, req);
6465 status = decode_putfh(xdr);
6467 status = decode_pathconf(xdr, res->pathconf);
6472 * Decode STATFS response
6474 static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
6475 struct nfs4_statfs_res *res)
6477 struct compound_hdr hdr;
6480 status = decode_compound_hdr(xdr, &hdr);
6482 status = decode_sequence(xdr, &res->seq_res, req);
6484 status = decode_putfh(xdr);
6486 status = decode_statfs(xdr, res->fsstat);
6491 * Decode GETATTR_BITMAP response
6493 static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req,
6494 struct xdr_stream *xdr,
6495 struct nfs4_server_caps_res *res)
6497 struct compound_hdr hdr;
6500 status = decode_compound_hdr(xdr, &hdr);
6503 status = decode_sequence(xdr, &res->seq_res, req);
6506 status = decode_putfh(xdr);
6509 status = decode_server_caps(xdr, res);
6515 * Decode RENEW response
6517 static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
6520 struct compound_hdr hdr;
6523 status = decode_compound_hdr(xdr, &hdr);
6525 status = decode_renew(xdr);
6530 * Decode SETCLIENTID response
6532 static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req,
6533 struct xdr_stream *xdr,
6534 struct nfs4_setclientid_res *res)
6536 struct compound_hdr hdr;
6539 status = decode_compound_hdr(xdr, &hdr);
6541 status = decode_setclientid(xdr, res);
6546 * Decode SETCLIENTID_CONFIRM response
6548 static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req,
6549 struct xdr_stream *xdr,
6550 struct nfs_fsinfo *fsinfo)
6552 struct compound_hdr hdr;
6555 status = decode_compound_hdr(xdr, &hdr);
6557 status = decode_setclientid_confirm(xdr);
6559 status = decode_putrootfh(xdr);
6561 status = decode_fsinfo(xdr, fsinfo);
6566 * Decode DELEGRETURN response
6568 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp,
6569 struct xdr_stream *xdr,
6570 struct nfs4_delegreturnres *res)
6572 struct compound_hdr hdr;
6575 status = decode_compound_hdr(xdr, &hdr);
6578 status = decode_sequence(xdr, &res->seq_res, rqstp);
6581 status = decode_putfh(xdr);
6584 status = decode_delegreturn(xdr);
6587 decode_getfattr(xdr, res->fattr, res->server,
6588 !RPC_IS_ASYNC(rqstp->rq_task));
6594 * Decode FS_LOCATIONS response
6596 static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req,
6597 struct xdr_stream *xdr,
6598 struct nfs4_fs_locations_res *res)
6600 struct compound_hdr hdr;
6603 status = decode_compound_hdr(xdr, &hdr);
6606 status = decode_sequence(xdr, &res->seq_res, req);
6609 status = decode_putfh(xdr);
6612 status = decode_lookup(xdr);
6615 xdr_enter_page(xdr, PAGE_SIZE);
6616 status = decode_getfattr(xdr, &res->fs_locations->fattr,
6617 res->fs_locations->server,
6618 !RPC_IS_ASYNC(req->rq_task));
6624 * Decode SECINFO response
6626 static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp,
6627 struct xdr_stream *xdr,
6628 struct nfs4_secinfo_res *res)
6630 struct compound_hdr hdr;
6633 status = decode_compound_hdr(xdr, &hdr);
6636 status = decode_sequence(xdr, &res->seq_res, rqstp);
6639 status = decode_putfh(xdr);
6642 status = decode_secinfo(xdr, res);
6647 #if defined(CONFIG_NFS_V4_1)
6649 * Decode EXCHANGE_ID response
6651 static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp,
6652 struct xdr_stream *xdr,
6655 struct compound_hdr hdr;
6658 status = decode_compound_hdr(xdr, &hdr);
6660 status = decode_exchange_id(xdr, res);
6665 * Decode CREATE_SESSION response
6667 static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp,
6668 struct xdr_stream *xdr,
6669 struct nfs41_create_session_res *res)
6671 struct compound_hdr hdr;
6674 status = decode_compound_hdr(xdr, &hdr);
6676 status = decode_create_session(xdr, res);
6681 * Decode DESTROY_SESSION response
6683 static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp,
6684 struct xdr_stream *xdr,
6687 struct compound_hdr hdr;
6690 status = decode_compound_hdr(xdr, &hdr);
6692 status = decode_destroy_session(xdr, res);
6697 * Decode SEQUENCE response
6699 static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp,
6700 struct xdr_stream *xdr,
6701 struct nfs4_sequence_res *res)
6703 struct compound_hdr hdr;
6706 status = decode_compound_hdr(xdr, &hdr);
6708 status = decode_sequence(xdr, res, rqstp);
6713 * Decode GET_LEASE_TIME response
6715 static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp,
6716 struct xdr_stream *xdr,
6717 struct nfs4_get_lease_time_res *res)
6719 struct compound_hdr hdr;
6722 status = decode_compound_hdr(xdr, &hdr);
6724 status = decode_sequence(xdr, &res->lr_seq_res, rqstp);
6726 status = decode_putrootfh(xdr);
6728 status = decode_fsinfo(xdr, res->lr_fsinfo);
6733 * Decode RECLAIM_COMPLETE response
6735 static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp,
6736 struct xdr_stream *xdr,
6737 struct nfs41_reclaim_complete_res *res)
6739 struct compound_hdr hdr;
6742 status = decode_compound_hdr(xdr, &hdr);
6744 status = decode_sequence(xdr, &res->seq_res, rqstp);
6746 status = decode_reclaim_complete(xdr, (void *)NULL);
6751 * Decode GETDEVICELIST response
6753 static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp,
6754 struct xdr_stream *xdr,
6755 struct nfs4_getdevicelist_res *res)
6757 struct compound_hdr hdr;
6760 dprintk("encoding getdevicelist!\n");
6762 status = decode_compound_hdr(xdr, &hdr);
6765 status = decode_sequence(xdr, &res->seq_res, rqstp);
6768 status = decode_putfh(xdr);
6771 status = decode_getdevicelist(xdr, res->devlist);
6777 * Decode GETDEVINFO response
6779 static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp,
6780 struct xdr_stream *xdr,
6781 struct nfs4_getdeviceinfo_res *res)
6783 struct compound_hdr hdr;
6786 status = decode_compound_hdr(xdr, &hdr);
6789 status = decode_sequence(xdr, &res->seq_res, rqstp);
6792 status = decode_getdeviceinfo(xdr, res->pdev);
6798 * Decode LAYOUTGET response
6800 static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp,
6801 struct xdr_stream *xdr,
6802 struct nfs4_layoutget_res *res)
6804 struct compound_hdr hdr;
6807 status = decode_compound_hdr(xdr, &hdr);
6810 status = decode_sequence(xdr, &res->seq_res, rqstp);
6813 status = decode_putfh(xdr);
6816 status = decode_layoutget(xdr, rqstp, res);
6822 * Decode LAYOUTRETURN response
6824 static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp,
6825 struct xdr_stream *xdr,
6826 struct nfs4_layoutreturn_res *res)
6828 struct compound_hdr hdr;
6831 status = decode_compound_hdr(xdr, &hdr);
6834 status = decode_sequence(xdr, &res->seq_res, rqstp);
6837 status = decode_putfh(xdr);
6840 status = decode_layoutreturn(xdr, res);
6846 * Decode LAYOUTCOMMIT response
6848 static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp,
6849 struct xdr_stream *xdr,
6850 struct nfs4_layoutcommit_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_putfh(xdr);
6864 status = decode_layoutcommit(xdr, rqstp, res);
6867 decode_getfattr(xdr, res->fattr, res->server,
6868 !RPC_IS_ASYNC(rqstp->rq_task));
6874 * Decode SECINFO_NO_NAME response
6876 static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp,
6877 struct xdr_stream *xdr,
6878 struct nfs4_secinfo_res *res)
6880 struct compound_hdr hdr;
6883 status = decode_compound_hdr(xdr, &hdr);
6886 status = decode_sequence(xdr, &res->seq_res, rqstp);
6889 status = decode_putrootfh(xdr);
6892 status = decode_secinfo(xdr, res);
6898 * Decode TEST_STATEID response
6900 static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp,
6901 struct xdr_stream *xdr,
6902 struct nfs41_test_stateid_res *res)
6904 struct compound_hdr hdr;
6907 status = decode_compound_hdr(xdr, &hdr);
6910 status = decode_sequence(xdr, &res->seq_res, rqstp);
6913 status = decode_test_stateid(xdr, res);
6919 * Decode FREE_STATEID response
6921 static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp,
6922 struct xdr_stream *xdr,
6923 struct nfs41_free_stateid_res *res)
6925 struct compound_hdr hdr;
6928 status = decode_compound_hdr(xdr, &hdr);
6931 status = decode_sequence(xdr, &res->seq_res, rqstp);
6934 status = decode_free_stateid(xdr, res);
6938 #endif /* CONFIG_NFS_V4_1 */
6941 * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in
6942 * the local page cache.
6943 * @xdr: XDR stream where entry resides
6944 * @entry: buffer to fill in with entry data
6945 * @plus: boolean indicating whether this should be a readdirplus entry
6947 * Returns zero if successful, otherwise a negative errno value is
6950 * This function is not invoked during READDIR reply decoding, but
6951 * rather whenever an application invokes the getdents(2) system call
6952 * on a directory already in our cache.
6954 int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
6957 uint32_t bitmap[3] = {0};
6959 __be32 *p = xdr_inline_decode(xdr, 4);
6962 if (*p == xdr_zero) {
6963 p = xdr_inline_decode(xdr, 4);
6972 p = xdr_inline_decode(xdr, 12);
6975 entry->prev_cookie = entry->cookie;
6976 p = xdr_decode_hyper(p, &entry->cookie);
6977 entry->len = be32_to_cpup(p);
6979 p = xdr_inline_decode(xdr, entry->len);
6982 entry->name = (const char *) p;
6985 * In case the server doesn't return an inode number,
6986 * we fake one here. (We don't use inode number 0,
6987 * since glibc seems to choke on it...)
6990 entry->fattr->valid = 0;
6992 if (decode_attr_bitmap(xdr, bitmap) < 0)
6995 if (decode_attr_length(xdr, &len, &p) < 0)
6998 if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh,
6999 entry->server, 1) < 0)
7001 if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID)
7002 entry->ino = entry->fattr->mounted_on_fileid;
7003 else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID)
7004 entry->ino = entry->fattr->fileid;
7006 entry->d_type = DT_UNKNOWN;
7007 if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE)
7008 entry->d_type = nfs_umode_to_dtype(entry->fattr->mode);
7013 print_overflow_msg(__func__, xdr);
7018 * We need to translate between nfs status return values and
7019 * the local errno values which may not be the same.
7026 { NFS4ERR_PERM, -EPERM },
7027 { NFS4ERR_NOENT, -ENOENT },
7028 { NFS4ERR_IO, -errno_NFSERR_IO},
7029 { NFS4ERR_NXIO, -ENXIO },
7030 { NFS4ERR_ACCESS, -EACCES },
7031 { NFS4ERR_EXIST, -EEXIST },
7032 { NFS4ERR_XDEV, -EXDEV },
7033 { NFS4ERR_NOTDIR, -ENOTDIR },
7034 { NFS4ERR_ISDIR, -EISDIR },
7035 { NFS4ERR_INVAL, -EINVAL },
7036 { NFS4ERR_FBIG, -EFBIG },
7037 { NFS4ERR_NOSPC, -ENOSPC },
7038 { NFS4ERR_ROFS, -EROFS },
7039 { NFS4ERR_MLINK, -EMLINK },
7040 { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG },
7041 { NFS4ERR_NOTEMPTY, -ENOTEMPTY },
7042 { NFS4ERR_DQUOT, -EDQUOT },
7043 { NFS4ERR_STALE, -ESTALE },
7044 { NFS4ERR_BADHANDLE, -EBADHANDLE },
7045 { NFS4ERR_BAD_COOKIE, -EBADCOOKIE },
7046 { NFS4ERR_NOTSUPP, -ENOTSUPP },
7047 { NFS4ERR_TOOSMALL, -ETOOSMALL },
7048 { NFS4ERR_SERVERFAULT, -EREMOTEIO },
7049 { NFS4ERR_BADTYPE, -EBADTYPE },
7050 { NFS4ERR_LOCKED, -EAGAIN },
7051 { NFS4ERR_SYMLINK, -ELOOP },
7052 { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP },
7053 { NFS4ERR_DEADLOCK, -EDEADLK },
7058 * Convert an NFS error code to a local one.
7059 * This one is used jointly by NFSv2 and NFSv3.
7062 nfs4_stat_to_errno(int stat)
7065 for (i = 0; nfs_errtbl[i].stat != -1; i++) {
7066 if (nfs_errtbl[i].stat == stat)
7067 return nfs_errtbl[i].errno;
7069 if (stat <= 10000 || stat > 10100) {
7070 /* The server is looney tunes. */
7073 /* If we cannot translate the error, the recovery routines should
7075 * Note: remaining NFSv4 error codes have values > 10000, so should
7076 * not conflict with native Linux error codes.
7081 #define PROC(proc, argtype, restype) \
7082 [NFSPROC4_CLNT_##proc] = { \
7083 .p_proc = NFSPROC4_COMPOUND, \
7084 .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \
7085 .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \
7086 .p_arglen = NFS4_##argtype##_sz, \
7087 .p_replen = NFS4_##restype##_sz, \
7088 .p_statidx = NFSPROC4_CLNT_##proc, \
7092 struct rpc_procinfo nfs4_procedures[] = {
7093 PROC(READ, enc_read, dec_read),
7094 PROC(WRITE, enc_write, dec_write),
7095 PROC(COMMIT, enc_commit, dec_commit),
7096 PROC(OPEN, enc_open, dec_open),
7097 PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
7098 PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
7099 PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
7100 PROC(CLOSE, enc_close, dec_close),
7101 PROC(SETATTR, enc_setattr, dec_setattr),
7102 PROC(FSINFO, enc_fsinfo, dec_fsinfo),
7103 PROC(RENEW, enc_renew, dec_renew),
7104 PROC(SETCLIENTID, enc_setclientid, dec_setclientid),
7105 PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm),
7106 PROC(LOCK, enc_lock, dec_lock),
7107 PROC(LOCKT, enc_lockt, dec_lockt),
7108 PROC(LOCKU, enc_locku, dec_locku),
7109 PROC(ACCESS, enc_access, dec_access),
7110 PROC(GETATTR, enc_getattr, dec_getattr),
7111 PROC(LOOKUP, enc_lookup, dec_lookup),
7112 PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
7113 PROC(REMOVE, enc_remove, dec_remove),
7114 PROC(RENAME, enc_rename, dec_rename),
7115 PROC(LINK, enc_link, dec_link),
7116 PROC(SYMLINK, enc_symlink, dec_symlink),
7117 PROC(CREATE, enc_create, dec_create),
7118 PROC(PATHCONF, enc_pathconf, dec_pathconf),
7119 PROC(STATFS, enc_statfs, dec_statfs),
7120 PROC(READLINK, enc_readlink, dec_readlink),
7121 PROC(READDIR, enc_readdir, dec_readdir),
7122 PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
7123 PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
7124 PROC(GETACL, enc_getacl, dec_getacl),
7125 PROC(SETACL, enc_setacl, dec_setacl),
7126 PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
7127 PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner),
7128 PROC(SECINFO, enc_secinfo, dec_secinfo),
7129 #if defined(CONFIG_NFS_V4_1)
7130 PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
7131 PROC(CREATE_SESSION, enc_create_session, dec_create_session),
7132 PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session),
7133 PROC(SEQUENCE, enc_sequence, dec_sequence),
7134 PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time),
7135 PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete),
7136 PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo),
7137 PROC(LAYOUTGET, enc_layoutget, dec_layoutget),
7138 PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit),
7139 PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn),
7140 PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name),
7141 PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid),
7142 PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid),
7143 PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist),
7144 #endif /* CONFIG_NFS_V4_1 */
7147 struct rpc_version nfs_version4 = {
7149 .nrprocs = ARRAY_SIZE(nfs4_procedures),
7150 .procs = nfs4_procedures