4 * Client-side XDR for NFSv4.
6 * Copyright (c) 2002 The Regents of the University of Michigan.
9 * Kendrick Smith <kmsmith@umich.edu>
10 * Andy Adamson <andros@umich.edu>
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of the University nor the names of its
22 * contributors may be used to endorse or promote products derived
23 * from this software without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
27 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
28 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
32 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
34 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 #include <linux/param.h>
39 #include <linux/time.h>
41 #include <linux/errno.h>
42 #include <linux/string.h>
44 #include <linux/pagemap.h>
45 #include <linux/proc_fs.h>
46 #include <linux/kdev_t.h>
47 #include <linux/module.h>
48 #include <linux/utsname.h>
49 #include <linux/sunrpc/clnt.h>
50 #include <linux/sunrpc/msg_prot.h>
51 #include <linux/sunrpc/gss_api.h>
52 #include <linux/nfs.h>
53 #include <linux/nfs4.h>
54 #include <linux/nfs_fs.h>
55 #include <linux/nfs_idmap.h>
59 #include "nfs4session.h"
63 #define NFSDBG_FACILITY NFSDBG_XDR
65 /* Mapping from NFS error code to "errno" error code. */
66 #define errno_NFSERR_IO EIO
68 static int nfs4_stat_to_errno(int);
70 /* NFSv4 COMPOUND tags are only wanted for debugging purposes */
72 #define NFS4_MAXTAGLEN 20
74 #define NFS4_MAXTAGLEN 0
77 /* lock,open owner id:
78 * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
80 #define open_owner_id_maxsz (1 + 2 + 1 + 1 + 2)
81 #define lock_owner_id_maxsz (1 + 1 + 4)
82 #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
83 #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
84 #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
85 #define op_encode_hdr_maxsz (1)
86 #define op_decode_hdr_maxsz (2)
87 #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
88 #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
89 #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
90 #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
91 #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
93 #define decode_putfh_maxsz (op_decode_hdr_maxsz)
94 #define encode_putrootfh_maxsz (op_encode_hdr_maxsz)
95 #define decode_putrootfh_maxsz (op_decode_hdr_maxsz)
96 #define encode_getfh_maxsz (op_encode_hdr_maxsz)
97 #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
98 ((3+NFS4_FHSIZE) >> 2))
99 #define nfs4_fattr_bitmap_maxsz 4
100 #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
101 #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
102 #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
103 #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
104 #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
105 #ifdef CONFIG_NFS_V4_SECURITY_LABEL
106 /* PI(4 bytes) + LFS(4 bytes) + 1(for null terminator?) + MAXLABELLEN */
107 #define nfs4_label_maxsz (4 + 4 + 1 + XDR_QUADLEN(NFS4_MAXLABELLEN))
109 #define nfs4_label_maxsz 0
111 /* We support only one layout type per file system */
112 #define decode_mdsthreshold_maxsz (1 + 1 + nfs4_fattr_bitmap_maxsz + 1 + 8)
113 /* This is based on getfattr, which uses the most attributes: */
114 #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
115 3 + 3 + 3 + nfs4_owner_maxsz + \
116 nfs4_group_maxsz + nfs4_label_maxsz + \
117 decode_mdsthreshold_maxsz))
118 #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
119 nfs4_fattr_value_maxsz)
120 #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
121 #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
127 #define encode_savefh_maxsz (op_encode_hdr_maxsz)
128 #define decode_savefh_maxsz (op_decode_hdr_maxsz)
129 #define encode_restorefh_maxsz (op_encode_hdr_maxsz)
130 #define decode_restorefh_maxsz (op_decode_hdr_maxsz)
131 #define encode_fsinfo_maxsz (encode_getattr_maxsz)
132 /* The 5 accounts for the PNFS attributes, and assumes that at most three
133 * layout types will be returned.
135 #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \
136 nfs4_fattr_bitmap_maxsz + 4 + 8 + 5)
137 #define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
138 #define decode_renew_maxsz (op_decode_hdr_maxsz)
139 #define encode_setclientid_maxsz \
140 (op_encode_hdr_maxsz + \
141 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
142 XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \
144 XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
145 XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
147 #define decode_setclientid_maxsz \
148 (op_decode_hdr_maxsz + \
150 1024) /* large value for CLID_INUSE */
151 #define encode_setclientid_confirm_maxsz \
152 (op_encode_hdr_maxsz + \
153 3 + (NFS4_VERIFIER_SIZE >> 2))
154 #define decode_setclientid_confirm_maxsz \
155 (op_decode_hdr_maxsz)
156 #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
157 #define decode_lookup_maxsz (op_decode_hdr_maxsz)
158 #define encode_share_access_maxsz \
160 #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
161 #define encode_opentype_maxsz (1 + encode_createmode_maxsz)
162 #define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
163 #define encode_open_maxsz (op_encode_hdr_maxsz + \
164 2 + encode_share_access_maxsz + 2 + \
165 open_owner_id_maxsz + \
166 encode_opentype_maxsz + \
167 encode_claim_null_maxsz)
168 #define decode_ace_maxsz (3 + nfs4_owner_maxsz)
169 #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
171 #define decode_change_info_maxsz (5)
172 #define decode_open_maxsz (op_decode_hdr_maxsz + \
173 decode_stateid_maxsz + \
174 decode_change_info_maxsz + 1 + \
175 nfs4_fattr_bitmap_maxsz + \
176 decode_delegation_maxsz)
177 #define encode_open_confirm_maxsz \
178 (op_encode_hdr_maxsz + \
179 encode_stateid_maxsz + 1)
180 #define decode_open_confirm_maxsz \
181 (op_decode_hdr_maxsz + \
182 decode_stateid_maxsz)
183 #define encode_open_downgrade_maxsz \
184 (op_encode_hdr_maxsz + \
185 encode_stateid_maxsz + 1 + \
186 encode_share_access_maxsz)
187 #define decode_open_downgrade_maxsz \
188 (op_decode_hdr_maxsz + \
189 decode_stateid_maxsz)
190 #define encode_close_maxsz (op_encode_hdr_maxsz + \
191 1 + encode_stateid_maxsz)
192 #define decode_close_maxsz (op_decode_hdr_maxsz + \
193 decode_stateid_maxsz)
194 #define encode_setattr_maxsz (op_encode_hdr_maxsz + \
195 encode_stateid_maxsz + \
197 #define decode_setattr_maxsz (op_decode_hdr_maxsz + \
198 nfs4_fattr_bitmap_maxsz)
199 #define encode_read_maxsz (op_encode_hdr_maxsz + \
200 encode_stateid_maxsz + 3)
201 #define decode_read_maxsz (op_decode_hdr_maxsz + 2)
202 #define encode_readdir_maxsz (op_encode_hdr_maxsz + \
203 2 + encode_verifier_maxsz + 5 + \
205 #define decode_readdir_maxsz (op_decode_hdr_maxsz + \
206 decode_verifier_maxsz)
207 #define encode_readlink_maxsz (op_encode_hdr_maxsz)
208 #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1)
209 #define encode_write_maxsz (op_encode_hdr_maxsz + \
210 encode_stateid_maxsz + 4)
211 #define decode_write_maxsz (op_decode_hdr_maxsz + \
212 2 + decode_verifier_maxsz)
213 #define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
214 #define decode_commit_maxsz (op_decode_hdr_maxsz + \
215 decode_verifier_maxsz)
216 #define encode_remove_maxsz (op_encode_hdr_maxsz + \
218 #define decode_remove_maxsz (op_decode_hdr_maxsz + \
219 decode_change_info_maxsz)
220 #define encode_rename_maxsz (op_encode_hdr_maxsz + \
222 #define decode_rename_maxsz (op_decode_hdr_maxsz + \
223 decode_change_info_maxsz + \
224 decode_change_info_maxsz)
225 #define encode_link_maxsz (op_encode_hdr_maxsz + \
227 #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
228 #define encode_lockowner_maxsz (7)
229 #define encode_lock_maxsz (op_encode_hdr_maxsz + \
231 1 + encode_stateid_maxsz + 1 + \
232 encode_lockowner_maxsz)
233 #define decode_lock_denied_maxsz \
234 (8 + decode_lockowner_maxsz)
235 #define decode_lock_maxsz (op_decode_hdr_maxsz + \
236 decode_lock_denied_maxsz)
237 #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
238 encode_lockowner_maxsz)
239 #define decode_lockt_maxsz (op_decode_hdr_maxsz + \
240 decode_lock_denied_maxsz)
241 #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
242 encode_stateid_maxsz + \
244 #define decode_locku_maxsz (op_decode_hdr_maxsz + \
245 decode_stateid_maxsz)
246 #define encode_release_lockowner_maxsz \
247 (op_encode_hdr_maxsz + \
248 encode_lockowner_maxsz)
249 #define decode_release_lockowner_maxsz \
250 (op_decode_hdr_maxsz)
251 #define encode_access_maxsz (op_encode_hdr_maxsz + 1)
252 #define decode_access_maxsz (op_decode_hdr_maxsz + 2)
253 #define encode_symlink_maxsz (op_encode_hdr_maxsz + \
254 1 + nfs4_name_maxsz + \
257 #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
258 #define encode_create_maxsz (op_encode_hdr_maxsz + \
259 1 + 2 + nfs4_name_maxsz + \
261 #define decode_create_maxsz (op_decode_hdr_maxsz + \
262 decode_change_info_maxsz + \
263 nfs4_fattr_bitmap_maxsz)
264 #define encode_statfs_maxsz (encode_getattr_maxsz)
265 #define decode_statfs_maxsz (decode_getattr_maxsz)
266 #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
267 #define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
268 #define encode_getacl_maxsz (encode_getattr_maxsz)
269 #define decode_getacl_maxsz (op_decode_hdr_maxsz + \
270 nfs4_fattr_bitmap_maxsz + 1)
271 #define encode_setacl_maxsz (op_encode_hdr_maxsz + \
272 encode_stateid_maxsz + 3)
273 #define decode_setacl_maxsz (decode_setattr_maxsz)
274 #define encode_fs_locations_maxsz \
275 (encode_getattr_maxsz)
276 #define decode_fs_locations_maxsz \
278 #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
279 #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4))
281 #if defined(CONFIG_NFS_V4_1)
282 #define NFS4_MAX_MACHINE_NAME_LEN (64)
283 #define IMPL_NAME_LIMIT (sizeof(utsname()->sysname) + sizeof(utsname()->release) + \
284 sizeof(utsname()->version) + sizeof(utsname()->machine) + 8)
286 #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
287 encode_verifier_maxsz + \
288 1 /* co_ownerid.len */ + \
289 XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \
292 /* max is SP4_MACH_CRED (for now) */ + \
293 1 + NFS4_OP_MAP_NUM_WORDS + \
294 1 + NFS4_OP_MAP_NUM_WORDS + \
295 1 /* implementation id array of size 1 */ + \
296 1 /* nii_domain */ + \
297 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
299 XDR_QUADLEN(IMPL_NAME_LIMIT) + \
301 #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
302 2 /* eir_clientid */ + \
303 1 /* eir_sequenceid */ + \
304 1 /* eir_flags */ + \
306 /* max is SP4_MACH_CRED (for now) */ + \
307 1 + NFS4_OP_MAP_NUM_WORDS + \
308 1 + NFS4_OP_MAP_NUM_WORDS + \
309 2 /* eir_server_owner.so_minor_id */ + \
310 /* eir_server_owner.so_major_id<> */ \
311 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
312 /* eir_server_scope<> */ \
313 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
314 1 /* eir_server_impl_id array length */ + \
315 1 /* nii_domain */ + \
316 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
318 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
320 #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
321 #define decode_channel_attrs_maxsz (6 + \
322 1 /* ca_rdma_ird.len */ + \
324 #define encode_create_session_maxsz (op_encode_hdr_maxsz + \
325 2 /* csa_clientid */ + \
326 1 /* csa_sequence */ + \
327 1 /* csa_flags */ + \
328 encode_channel_attrs_maxsz + \
329 encode_channel_attrs_maxsz + \
330 1 /* csa_cb_program */ + \
331 1 /* csa_sec_parms.len (1) */ + \
332 1 /* cb_secflavor (AUTH_SYS) */ + \
334 1 /* machinename.len */ + \
335 XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
338 1 /* gids.len (0) */)
339 #define decode_create_session_maxsz (op_decode_hdr_maxsz + \
340 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
341 1 /* csr_sequence */ + \
342 1 /* csr_flags */ + \
343 decode_channel_attrs_maxsz + \
344 decode_channel_attrs_maxsz)
345 #define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \
347 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
348 1 /* bctsa_dir */ + \
349 1 /* bctsa_use_conn_in_rdma_mode */)
350 #define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \
352 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
353 1 /* bctsr_dir */ + \
354 1 /* bctsr_use_conn_in_rdma_mode */)
355 #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
356 #define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
357 #define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2)
358 #define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz)
359 #define encode_sequence_maxsz (op_encode_hdr_maxsz + \
360 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
361 #define decode_sequence_maxsz (op_decode_hdr_maxsz + \
362 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
363 #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
364 #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
365 #define encode_getdevicelist_maxsz (op_encode_hdr_maxsz + 4 + \
366 encode_verifier_maxsz)
367 #define decode_getdevicelist_maxsz (op_decode_hdr_maxsz + \
368 2 /* nfs_cookie4 gdlr_cookie */ + \
369 decode_verifier_maxsz \
370 /* verifier4 gdlr_verifier */ + \
371 1 /* gdlr_deviceid_list count */ + \
372 XDR_QUADLEN(NFS4_PNFS_GETDEVLIST_MAXNUM * \
373 NFS4_DEVICEID4_SIZE) \
374 /* gdlr_deviceid_list */ + \
375 1 /* bool gdlr_eof */)
376 #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \
377 XDR_QUADLEN(NFS4_DEVICEID4_SIZE))
378 #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \
379 1 /* layout type */ + \
380 1 /* opaque devaddr4 length */ + \
381 /* devaddr4 payload is read into page */ \
382 1 /* notification bitmap length */ + \
383 1 /* notification bitmap */)
384 #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \
385 encode_stateid_maxsz)
386 #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \
387 decode_stateid_maxsz + \
388 XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE))
389 #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \
393 encode_stateid_maxsz + \
394 1 /* new offset (true) */ + \
395 2 /* last byte written */ + \
396 1 /* nt_timechanged (false) */ + \
397 1 /* layoutupdate4 layout type */ + \
398 1 /* NULL filelayout layoutupdate4 payload */)
399 #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3)
400 #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \
401 encode_stateid_maxsz + \
402 1 /* FIXME: opaque lrf_body always empty at the moment */)
403 #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \
404 1 + decode_stateid_maxsz)
405 #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1)
406 #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz
407 #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \
408 XDR_QUADLEN(NFS4_STATEID_SIZE))
409 #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1)
410 #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \
411 XDR_QUADLEN(NFS4_STATEID_SIZE))
412 #define decode_free_stateid_maxsz (op_decode_hdr_maxsz)
413 #else /* CONFIG_NFS_V4_1 */
414 #define encode_sequence_maxsz 0
415 #define decode_sequence_maxsz 0
416 #endif /* CONFIG_NFS_V4_1 */
418 #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
419 #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
420 #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
421 encode_sequence_maxsz + \
422 encode_putfh_maxsz + \
424 #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
425 decode_sequence_maxsz + \
426 decode_putfh_maxsz + \
428 #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
429 encode_sequence_maxsz + \
430 encode_putfh_maxsz + \
431 encode_readlink_maxsz)
432 #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
433 decode_sequence_maxsz + \
434 decode_putfh_maxsz + \
435 decode_readlink_maxsz)
436 #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
437 encode_sequence_maxsz + \
438 encode_putfh_maxsz + \
439 encode_readdir_maxsz)
440 #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
441 decode_sequence_maxsz + \
442 decode_putfh_maxsz + \
443 decode_readdir_maxsz)
444 #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
445 encode_sequence_maxsz + \
446 encode_putfh_maxsz + \
447 encode_write_maxsz + \
448 encode_getattr_maxsz)
449 #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
450 decode_sequence_maxsz + \
451 decode_putfh_maxsz + \
452 decode_write_maxsz + \
453 decode_getattr_maxsz)
454 #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
455 encode_sequence_maxsz + \
456 encode_putfh_maxsz + \
458 #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
459 decode_sequence_maxsz + \
460 decode_putfh_maxsz + \
462 #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
463 encode_sequence_maxsz + \
464 encode_putfh_maxsz + \
465 encode_open_maxsz + \
466 encode_access_maxsz + \
467 encode_getfh_maxsz + \
468 encode_getattr_maxsz)
469 #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
470 decode_sequence_maxsz + \
471 decode_putfh_maxsz + \
472 decode_open_maxsz + \
473 decode_access_maxsz + \
474 decode_getfh_maxsz + \
475 decode_getattr_maxsz)
476 #define NFS4_enc_open_confirm_sz \
477 (compound_encode_hdr_maxsz + \
478 encode_putfh_maxsz + \
479 encode_open_confirm_maxsz)
480 #define NFS4_dec_open_confirm_sz \
481 (compound_decode_hdr_maxsz + \
482 decode_putfh_maxsz + \
483 decode_open_confirm_maxsz)
484 #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
485 encode_sequence_maxsz + \
486 encode_putfh_maxsz + \
487 encode_open_maxsz + \
488 encode_access_maxsz + \
489 encode_getattr_maxsz)
490 #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
491 decode_sequence_maxsz + \
492 decode_putfh_maxsz + \
493 decode_open_maxsz + \
494 decode_access_maxsz + \
495 decode_getattr_maxsz)
496 #define NFS4_enc_open_downgrade_sz \
497 (compound_encode_hdr_maxsz + \
498 encode_sequence_maxsz + \
499 encode_putfh_maxsz + \
500 encode_open_downgrade_maxsz + \
501 encode_getattr_maxsz)
502 #define NFS4_dec_open_downgrade_sz \
503 (compound_decode_hdr_maxsz + \
504 decode_sequence_maxsz + \
505 decode_putfh_maxsz + \
506 decode_open_downgrade_maxsz + \
507 decode_getattr_maxsz)
508 #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
509 encode_sequence_maxsz + \
510 encode_putfh_maxsz + \
511 encode_close_maxsz + \
512 encode_getattr_maxsz)
513 #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
514 decode_sequence_maxsz + \
515 decode_putfh_maxsz + \
516 decode_close_maxsz + \
517 decode_getattr_maxsz)
518 #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
519 encode_sequence_maxsz + \
520 encode_putfh_maxsz + \
521 encode_setattr_maxsz + \
522 encode_getattr_maxsz)
523 #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
524 decode_sequence_maxsz + \
525 decode_putfh_maxsz + \
526 decode_setattr_maxsz + \
527 decode_getattr_maxsz)
528 #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
529 encode_sequence_maxsz + \
530 encode_putfh_maxsz + \
532 #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
533 decode_sequence_maxsz + \
534 decode_putfh_maxsz + \
536 #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
538 #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
540 #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
541 encode_setclientid_maxsz)
542 #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
543 decode_setclientid_maxsz)
544 #define NFS4_enc_setclientid_confirm_sz \
545 (compound_encode_hdr_maxsz + \
546 encode_setclientid_confirm_maxsz)
547 #define NFS4_dec_setclientid_confirm_sz \
548 (compound_decode_hdr_maxsz + \
549 decode_setclientid_confirm_maxsz)
550 #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
551 encode_sequence_maxsz + \
552 encode_putfh_maxsz + \
554 #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
555 decode_sequence_maxsz + \
556 decode_putfh_maxsz + \
558 #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
559 encode_sequence_maxsz + \
560 encode_putfh_maxsz + \
562 #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
563 decode_sequence_maxsz + \
564 decode_putfh_maxsz + \
566 #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
567 encode_sequence_maxsz + \
568 encode_putfh_maxsz + \
570 #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
571 decode_sequence_maxsz + \
572 decode_putfh_maxsz + \
574 #define NFS4_enc_release_lockowner_sz \
575 (compound_encode_hdr_maxsz + \
576 encode_lockowner_maxsz)
577 #define NFS4_dec_release_lockowner_sz \
578 (compound_decode_hdr_maxsz + \
579 decode_lockowner_maxsz)
580 #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
581 encode_sequence_maxsz + \
582 encode_putfh_maxsz + \
583 encode_access_maxsz + \
584 encode_getattr_maxsz)
585 #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
586 decode_sequence_maxsz + \
587 decode_putfh_maxsz + \
588 decode_access_maxsz + \
589 decode_getattr_maxsz)
590 #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
591 encode_sequence_maxsz + \
592 encode_putfh_maxsz + \
593 encode_getattr_maxsz + \
595 #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
596 decode_sequence_maxsz + \
597 decode_putfh_maxsz + \
598 decode_getattr_maxsz + \
600 #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
601 encode_sequence_maxsz + \
602 encode_putfh_maxsz + \
603 encode_lookup_maxsz + \
604 encode_getattr_maxsz + \
606 #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
607 decode_sequence_maxsz + \
608 decode_putfh_maxsz + \
609 decode_lookup_maxsz + \
610 decode_getattr_maxsz + \
612 #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
613 encode_sequence_maxsz + \
614 encode_putrootfh_maxsz + \
615 encode_getattr_maxsz + \
617 #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
618 decode_sequence_maxsz + \
619 decode_putrootfh_maxsz + \
620 decode_getattr_maxsz + \
622 #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
623 encode_sequence_maxsz + \
624 encode_putfh_maxsz + \
626 #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
627 decode_sequence_maxsz + \
628 decode_putfh_maxsz + \
630 #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
631 encode_sequence_maxsz + \
632 encode_putfh_maxsz + \
633 encode_savefh_maxsz + \
634 encode_putfh_maxsz + \
636 #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
637 decode_sequence_maxsz + \
638 decode_putfh_maxsz + \
639 decode_savefh_maxsz + \
640 decode_putfh_maxsz + \
642 #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
643 encode_sequence_maxsz + \
644 encode_putfh_maxsz + \
645 encode_savefh_maxsz + \
646 encode_putfh_maxsz + \
647 encode_link_maxsz + \
648 encode_restorefh_maxsz + \
649 encode_getattr_maxsz)
650 #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
651 decode_sequence_maxsz + \
652 decode_putfh_maxsz + \
653 decode_savefh_maxsz + \
654 decode_putfh_maxsz + \
655 decode_link_maxsz + \
656 decode_restorefh_maxsz + \
657 decode_getattr_maxsz)
658 #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
659 encode_sequence_maxsz + \
660 encode_putfh_maxsz + \
661 encode_symlink_maxsz + \
662 encode_getattr_maxsz + \
664 #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
665 decode_sequence_maxsz + \
666 decode_putfh_maxsz + \
667 decode_symlink_maxsz + \
668 decode_getattr_maxsz + \
670 #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
671 encode_sequence_maxsz + \
672 encode_putfh_maxsz + \
673 encode_create_maxsz + \
674 encode_getfh_maxsz + \
675 encode_getattr_maxsz)
676 #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
677 decode_sequence_maxsz + \
678 decode_putfh_maxsz + \
679 decode_create_maxsz + \
680 decode_getfh_maxsz + \
681 decode_getattr_maxsz)
682 #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
683 encode_sequence_maxsz + \
684 encode_putfh_maxsz + \
685 encode_getattr_maxsz)
686 #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
687 decode_sequence_maxsz + \
688 decode_putfh_maxsz + \
689 decode_getattr_maxsz)
690 #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
691 encode_sequence_maxsz + \
692 encode_putfh_maxsz + \
694 #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
695 decode_sequence_maxsz + \
696 decode_putfh_maxsz + \
698 #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
699 encode_sequence_maxsz + \
700 encode_putfh_maxsz + \
701 encode_getattr_maxsz)
702 #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
703 decode_sequence_maxsz + \
704 decode_putfh_maxsz + \
705 decode_getattr_maxsz)
706 #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
707 encode_sequence_maxsz + \
708 encode_putfh_maxsz + \
709 encode_delegreturn_maxsz + \
710 encode_getattr_maxsz)
711 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
712 decode_sequence_maxsz + \
713 decode_delegreturn_maxsz + \
714 decode_getattr_maxsz)
715 #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
716 encode_sequence_maxsz + \
717 encode_putfh_maxsz + \
719 #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
720 decode_sequence_maxsz + \
721 decode_putfh_maxsz + \
723 #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
724 encode_sequence_maxsz + \
725 encode_putfh_maxsz + \
727 #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
728 decode_sequence_maxsz + \
729 decode_putfh_maxsz + \
731 #define NFS4_enc_fs_locations_sz \
732 (compound_encode_hdr_maxsz + \
733 encode_sequence_maxsz + \
734 encode_putfh_maxsz + \
735 encode_lookup_maxsz + \
736 encode_fs_locations_maxsz + \
738 #define NFS4_dec_fs_locations_sz \
739 (compound_decode_hdr_maxsz + \
740 decode_sequence_maxsz + \
741 decode_putfh_maxsz + \
742 decode_lookup_maxsz + \
743 decode_fs_locations_maxsz + \
745 #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \
746 encode_sequence_maxsz + \
747 encode_putfh_maxsz + \
748 encode_secinfo_maxsz)
749 #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \
750 decode_sequence_maxsz + \
751 decode_putfh_maxsz + \
752 decode_secinfo_maxsz)
753 #define NFS4_enc_fsid_present_sz \
754 (compound_encode_hdr_maxsz + \
755 encode_sequence_maxsz + \
756 encode_putfh_maxsz + \
757 encode_getfh_maxsz + \
759 #define NFS4_dec_fsid_present_sz \
760 (compound_decode_hdr_maxsz + \
761 decode_sequence_maxsz + \
762 decode_putfh_maxsz + \
763 decode_getfh_maxsz + \
765 #if defined(CONFIG_NFS_V4_1)
766 #define NFS4_enc_bind_conn_to_session_sz \
767 (compound_encode_hdr_maxsz + \
768 encode_bind_conn_to_session_maxsz)
769 #define NFS4_dec_bind_conn_to_session_sz \
770 (compound_decode_hdr_maxsz + \
771 decode_bind_conn_to_session_maxsz)
772 #define NFS4_enc_exchange_id_sz \
773 (compound_encode_hdr_maxsz + \
774 encode_exchange_id_maxsz)
775 #define NFS4_dec_exchange_id_sz \
776 (compound_decode_hdr_maxsz + \
777 decode_exchange_id_maxsz)
778 #define NFS4_enc_create_session_sz \
779 (compound_encode_hdr_maxsz + \
780 encode_create_session_maxsz)
781 #define NFS4_dec_create_session_sz \
782 (compound_decode_hdr_maxsz + \
783 decode_create_session_maxsz)
784 #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
785 encode_destroy_session_maxsz)
786 #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
787 decode_destroy_session_maxsz)
788 #define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \
789 encode_destroy_clientid_maxsz)
790 #define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \
791 decode_destroy_clientid_maxsz)
792 #define NFS4_enc_sequence_sz \
793 (compound_decode_hdr_maxsz + \
794 encode_sequence_maxsz)
795 #define NFS4_dec_sequence_sz \
796 (compound_decode_hdr_maxsz + \
797 decode_sequence_maxsz)
798 #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
799 encode_sequence_maxsz + \
800 encode_putrootfh_maxsz + \
802 #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
803 decode_sequence_maxsz + \
804 decode_putrootfh_maxsz + \
806 #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
807 encode_sequence_maxsz + \
808 encode_reclaim_complete_maxsz)
809 #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
810 decode_sequence_maxsz + \
811 decode_reclaim_complete_maxsz)
812 #define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \
813 encode_sequence_maxsz + \
814 encode_putfh_maxsz + \
815 encode_getdevicelist_maxsz)
816 #define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \
817 decode_sequence_maxsz + \
818 decode_putfh_maxsz + \
819 decode_getdevicelist_maxsz)
820 #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \
821 encode_sequence_maxsz +\
822 encode_getdeviceinfo_maxsz)
823 #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \
824 decode_sequence_maxsz + \
825 decode_getdeviceinfo_maxsz)
826 #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \
827 encode_sequence_maxsz + \
828 encode_putfh_maxsz + \
829 encode_layoutget_maxsz)
830 #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \
831 decode_sequence_maxsz + \
832 decode_putfh_maxsz + \
833 decode_layoutget_maxsz)
834 #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \
835 encode_sequence_maxsz +\
836 encode_putfh_maxsz + \
837 encode_layoutcommit_maxsz + \
838 encode_getattr_maxsz)
839 #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \
840 decode_sequence_maxsz + \
841 decode_putfh_maxsz + \
842 decode_layoutcommit_maxsz + \
843 decode_getattr_maxsz)
844 #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \
845 encode_sequence_maxsz + \
846 encode_putfh_maxsz + \
847 encode_layoutreturn_maxsz)
848 #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \
849 decode_sequence_maxsz + \
850 decode_putfh_maxsz + \
851 decode_layoutreturn_maxsz)
852 #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \
853 encode_sequence_maxsz + \
854 encode_putrootfh_maxsz +\
855 encode_secinfo_no_name_maxsz)
856 #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \
857 decode_sequence_maxsz + \
858 decode_putrootfh_maxsz + \
859 decode_secinfo_no_name_maxsz)
860 #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \
861 encode_sequence_maxsz + \
862 encode_test_stateid_maxsz)
863 #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \
864 decode_sequence_maxsz + \
865 decode_test_stateid_maxsz)
866 #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \
867 encode_sequence_maxsz + \
868 encode_free_stateid_maxsz)
869 #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \
870 decode_sequence_maxsz + \
871 decode_free_stateid_maxsz)
873 const u32 nfs41_maxwrite_overhead
= ((RPC_MAX_HEADER_WITH_AUTH
+
874 compound_encode_hdr_maxsz
+
875 encode_sequence_maxsz
+
877 encode_getattr_maxsz
) *
880 const u32 nfs41_maxread_overhead
= ((RPC_MAX_HEADER_WITH_AUTH
+
881 compound_decode_hdr_maxsz
+
882 decode_sequence_maxsz
+
883 decode_putfh_maxsz
) *
886 const u32 nfs41_maxgetdevinfo_overhead
= ((RPC_MAX_REPHEADER_WITH_AUTH
+
887 compound_decode_hdr_maxsz
+
888 decode_sequence_maxsz
) *
890 EXPORT_SYMBOL_GPL(nfs41_maxgetdevinfo_overhead
);
891 #endif /* CONFIG_NFS_V4_1 */
893 static const umode_t nfs_type2fmt
[] = {
900 [NF4SOCK
] = S_IFSOCK
,
906 struct compound_hdr
{
912 uint32_t replen
; /* expected reply words */
916 static __be32
*reserve_space(struct xdr_stream
*xdr
, size_t nbytes
)
918 __be32
*p
= xdr_reserve_space(xdr
, nbytes
);
923 static void encode_opaque_fixed(struct xdr_stream
*xdr
, const void *buf
, size_t len
)
927 p
= xdr_reserve_space(xdr
, len
);
928 xdr_encode_opaque_fixed(p
, buf
, len
);
931 static void encode_string(struct xdr_stream
*xdr
, unsigned int len
, const char *str
)
935 p
= reserve_space(xdr
, 4 + len
);
936 xdr_encode_opaque(p
, str
, len
);
939 static void encode_uint32(struct xdr_stream
*xdr
, u32 n
)
943 p
= reserve_space(xdr
, 4);
947 static void encode_uint64(struct xdr_stream
*xdr
, u64 n
)
951 p
= reserve_space(xdr
, 8);
952 xdr_encode_hyper(p
, n
);
955 static void encode_nfs4_seqid(struct xdr_stream
*xdr
,
956 const struct nfs_seqid
*seqid
)
958 encode_uint32(xdr
, seqid
->sequence
->counter
);
961 static void encode_compound_hdr(struct xdr_stream
*xdr
,
962 struct rpc_rqst
*req
,
963 struct compound_hdr
*hdr
)
966 struct rpc_auth
*auth
= req
->rq_cred
->cr_auth
;
968 /* initialize running count of expected bytes in reply.
969 * NOTE: the replied tag SHOULD be the same is the one sent,
970 * but this is not required as a MUST for the server to do so. */
971 hdr
->replen
= RPC_REPHDRSIZE
+ auth
->au_rslack
+ 3 + hdr
->taglen
;
973 WARN_ON_ONCE(hdr
->taglen
> NFS4_MAXTAGLEN
);
974 encode_string(xdr
, hdr
->taglen
, hdr
->tag
);
975 p
= reserve_space(xdr
, 8);
976 *p
++ = cpu_to_be32(hdr
->minorversion
);
978 *p
= cpu_to_be32(hdr
->nops
);
981 static void encode_op_hdr(struct xdr_stream
*xdr
, enum nfs_opnum4 op
,
983 struct compound_hdr
*hdr
)
985 encode_uint32(xdr
, op
);
987 hdr
->replen
+= replen
;
990 static void encode_nops(struct compound_hdr
*hdr
)
992 WARN_ON_ONCE(hdr
->nops
> NFS4_MAX_OPS
);
993 *hdr
->nops_p
= htonl(hdr
->nops
);
996 static void encode_nfs4_stateid(struct xdr_stream
*xdr
, const nfs4_stateid
*stateid
)
998 encode_opaque_fixed(xdr
, stateid
, NFS4_STATEID_SIZE
);
1001 static void encode_nfs4_verifier(struct xdr_stream
*xdr
, const nfs4_verifier
*verf
)
1003 encode_opaque_fixed(xdr
, verf
->data
, NFS4_VERIFIER_SIZE
);
1006 static void encode_attrs(struct xdr_stream
*xdr
, const struct iattr
*iap
,
1007 const struct nfs4_label
*label
,
1008 const struct nfs_server
*server
)
1010 char owner_name
[IDMAP_NAMESZ
];
1011 char owner_group
[IDMAP_NAMESZ
];
1012 int owner_namelen
= 0;
1013 int owner_grouplen
= 0;
1018 uint32_t bmval
[3] = { 0 };
1021 * We reserve enough space to write the entire attribute buffer at once.
1022 * In the worst-case, this would be
1023 * 16(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
1024 * = 40 bytes, plus any contribution from variable-length fields
1025 * such as owner/group.
1027 if (iap
->ia_valid
& ATTR_SIZE
) {
1028 bmval
[0] |= FATTR4_WORD0_SIZE
;
1031 if (iap
->ia_valid
& ATTR_MODE
) {
1032 bmval
[1] |= FATTR4_WORD1_MODE
;
1035 if (iap
->ia_valid
& ATTR_UID
) {
1036 owner_namelen
= nfs_map_uid_to_name(server
, iap
->ia_uid
, owner_name
, IDMAP_NAMESZ
);
1037 if (owner_namelen
< 0) {
1038 dprintk("nfs: couldn't resolve uid %d to string\n",
1039 from_kuid(&init_user_ns
, iap
->ia_uid
));
1041 strcpy(owner_name
, "nobody");
1042 owner_namelen
= sizeof("nobody") - 1;
1045 bmval
[1] |= FATTR4_WORD1_OWNER
;
1046 len
+= 4 + (XDR_QUADLEN(owner_namelen
) << 2);
1048 if (iap
->ia_valid
& ATTR_GID
) {
1049 owner_grouplen
= nfs_map_gid_to_group(server
, iap
->ia_gid
, owner_group
, IDMAP_NAMESZ
);
1050 if (owner_grouplen
< 0) {
1051 dprintk("nfs: couldn't resolve gid %d to string\n",
1052 from_kgid(&init_user_ns
, iap
->ia_gid
));
1053 strcpy(owner_group
, "nobody");
1054 owner_grouplen
= sizeof("nobody") - 1;
1057 bmval
[1] |= FATTR4_WORD1_OWNER_GROUP
;
1058 len
+= 4 + (XDR_QUADLEN(owner_grouplen
) << 2);
1060 if (iap
->ia_valid
& ATTR_ATIME_SET
) {
1061 bmval
[1] |= FATTR4_WORD1_TIME_ACCESS_SET
;
1063 } else if (iap
->ia_valid
& ATTR_ATIME
) {
1064 bmval
[1] |= FATTR4_WORD1_TIME_ACCESS_SET
;
1067 if (iap
->ia_valid
& ATTR_MTIME_SET
) {
1068 bmval
[1] |= FATTR4_WORD1_TIME_MODIFY_SET
;
1070 } else if (iap
->ia_valid
& ATTR_MTIME
) {
1071 bmval
[1] |= FATTR4_WORD1_TIME_MODIFY_SET
;
1075 len
+= 4 + 4 + 4 + (XDR_QUADLEN(label
->len
) << 2);
1076 bmval
[2] |= FATTR4_WORD2_SECURITY_LABEL
;
1081 else if (bmval
[1] != 0)
1086 p
= reserve_space(xdr
, 4 + (bmval_len
<< 2) + 4 + len
);
1088 *p
++ = cpu_to_be32(bmval_len
);
1089 for (i
= 0; i
< bmval_len
; i
++)
1090 *p
++ = cpu_to_be32(bmval
[i
]);
1091 *p
++ = cpu_to_be32(len
);
1093 if (bmval
[0] & FATTR4_WORD0_SIZE
)
1094 p
= xdr_encode_hyper(p
, iap
->ia_size
);
1095 if (bmval
[1] & FATTR4_WORD1_MODE
)
1096 *p
++ = cpu_to_be32(iap
->ia_mode
& S_IALLUGO
);
1097 if (bmval
[1] & FATTR4_WORD1_OWNER
)
1098 p
= xdr_encode_opaque(p
, owner_name
, owner_namelen
);
1099 if (bmval
[1] & FATTR4_WORD1_OWNER_GROUP
)
1100 p
= xdr_encode_opaque(p
, owner_group
, owner_grouplen
);
1101 if (bmval
[1] & FATTR4_WORD1_TIME_ACCESS_SET
) {
1102 if (iap
->ia_valid
& ATTR_ATIME_SET
) {
1103 *p
++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME
);
1104 p
= xdr_encode_hyper(p
, (s64
)iap
->ia_atime
.tv_sec
);
1105 *p
++ = cpu_to_be32(iap
->ia_atime
.tv_nsec
);
1107 *p
++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME
);
1109 if (bmval
[1] & FATTR4_WORD1_TIME_MODIFY_SET
) {
1110 if (iap
->ia_valid
& ATTR_MTIME_SET
) {
1111 *p
++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME
);
1112 p
= xdr_encode_hyper(p
, (s64
)iap
->ia_mtime
.tv_sec
);
1113 *p
++ = cpu_to_be32(iap
->ia_mtime
.tv_nsec
);
1115 *p
++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME
);
1117 if (bmval
[2] & FATTR4_WORD2_SECURITY_LABEL
) {
1118 *p
++ = cpu_to_be32(label
->lfs
);
1119 *p
++ = cpu_to_be32(label
->pi
);
1120 *p
++ = cpu_to_be32(label
->len
);
1121 p
= xdr_encode_opaque_fixed(p
, label
->label
, label
->len
);
1127 static void encode_access(struct xdr_stream
*xdr
, u32 access
, struct compound_hdr
*hdr
)
1129 encode_op_hdr(xdr
, OP_ACCESS
, decode_access_maxsz
, hdr
);
1130 encode_uint32(xdr
, access
);
1133 static void encode_close(struct xdr_stream
*xdr
, const struct nfs_closeargs
*arg
, struct compound_hdr
*hdr
)
1135 encode_op_hdr(xdr
, OP_CLOSE
, decode_close_maxsz
, hdr
);
1136 encode_nfs4_seqid(xdr
, arg
->seqid
);
1137 encode_nfs4_stateid(xdr
, arg
->stateid
);
1140 static void encode_commit(struct xdr_stream
*xdr
, const struct nfs_commitargs
*args
, struct compound_hdr
*hdr
)
1144 encode_op_hdr(xdr
, OP_COMMIT
, decode_commit_maxsz
, hdr
);
1145 p
= reserve_space(xdr
, 12);
1146 p
= xdr_encode_hyper(p
, args
->offset
);
1147 *p
= cpu_to_be32(args
->count
);
1150 static void encode_create(struct xdr_stream
*xdr
, const struct nfs4_create_arg
*create
, struct compound_hdr
*hdr
)
1154 encode_op_hdr(xdr
, OP_CREATE
, decode_create_maxsz
, hdr
);
1155 encode_uint32(xdr
, create
->ftype
);
1157 switch (create
->ftype
) {
1159 p
= reserve_space(xdr
, 4);
1160 *p
= cpu_to_be32(create
->u
.symlink
.len
);
1161 xdr_write_pages(xdr
, create
->u
.symlink
.pages
, 0, create
->u
.symlink
.len
);
1164 case NF4BLK
: case NF4CHR
:
1165 p
= reserve_space(xdr
, 8);
1166 *p
++ = cpu_to_be32(create
->u
.device
.specdata1
);
1167 *p
= cpu_to_be32(create
->u
.device
.specdata2
);
1174 encode_string(xdr
, create
->name
->len
, create
->name
->name
);
1175 encode_attrs(xdr
, create
->attrs
, create
->label
, create
->server
);
1178 static void encode_getattr_one(struct xdr_stream
*xdr
, uint32_t bitmap
, struct compound_hdr
*hdr
)
1182 encode_op_hdr(xdr
, OP_GETATTR
, decode_getattr_maxsz
, hdr
);
1183 p
= reserve_space(xdr
, 8);
1184 *p
++ = cpu_to_be32(1);
1185 *p
= cpu_to_be32(bitmap
);
1188 static void encode_getattr_two(struct xdr_stream
*xdr
, uint32_t bm0
, uint32_t bm1
, struct compound_hdr
*hdr
)
1192 encode_op_hdr(xdr
, OP_GETATTR
, decode_getattr_maxsz
, hdr
);
1193 p
= reserve_space(xdr
, 12);
1194 *p
++ = cpu_to_be32(2);
1195 *p
++ = cpu_to_be32(bm0
);
1196 *p
= cpu_to_be32(bm1
);
1200 encode_getattr_three(struct xdr_stream
*xdr
,
1201 uint32_t bm0
, uint32_t bm1
, uint32_t bm2
,
1202 struct compound_hdr
*hdr
)
1206 encode_op_hdr(xdr
, OP_GETATTR
, decode_getattr_maxsz
, hdr
);
1208 p
= reserve_space(xdr
, 16);
1209 *p
++ = cpu_to_be32(3);
1210 *p
++ = cpu_to_be32(bm0
);
1211 *p
++ = cpu_to_be32(bm1
);
1212 *p
= cpu_to_be32(bm2
);
1214 p
= reserve_space(xdr
, 12);
1215 *p
++ = cpu_to_be32(2);
1216 *p
++ = cpu_to_be32(bm0
);
1217 *p
= cpu_to_be32(bm1
);
1219 p
= reserve_space(xdr
, 8);
1220 *p
++ = cpu_to_be32(1);
1221 *p
= cpu_to_be32(bm0
);
1225 static void encode_getfattr(struct xdr_stream
*xdr
, const u32
* bitmask
, struct compound_hdr
*hdr
)
1227 encode_getattr_three(xdr
, bitmask
[0] & nfs4_fattr_bitmap
[0],
1228 bitmask
[1] & nfs4_fattr_bitmap
[1],
1229 bitmask
[2] & nfs4_fattr_bitmap
[2],
1233 static void encode_getfattr_open(struct xdr_stream
*xdr
, const u32
*bitmask
,
1234 const u32
*open_bitmap
,
1235 struct compound_hdr
*hdr
)
1237 encode_getattr_three(xdr
,
1238 bitmask
[0] & open_bitmap
[0],
1239 bitmask
[1] & open_bitmap
[1],
1240 bitmask
[2] & open_bitmap
[2],
1244 static void encode_fsinfo(struct xdr_stream
*xdr
, const u32
* bitmask
, struct compound_hdr
*hdr
)
1246 encode_getattr_three(xdr
,
1247 bitmask
[0] & nfs4_fsinfo_bitmap
[0],
1248 bitmask
[1] & nfs4_fsinfo_bitmap
[1],
1249 bitmask
[2] & nfs4_fsinfo_bitmap
[2],
1253 static void encode_fs_locations(struct xdr_stream
*xdr
, const u32
* bitmask
, struct compound_hdr
*hdr
)
1255 encode_getattr_two(xdr
, bitmask
[0] & nfs4_fs_locations_bitmap
[0],
1256 bitmask
[1] & nfs4_fs_locations_bitmap
[1], hdr
);
1259 static void encode_getfh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1261 encode_op_hdr(xdr
, OP_GETFH
, decode_getfh_maxsz
, hdr
);
1264 static void encode_link(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1266 encode_op_hdr(xdr
, OP_LINK
, decode_link_maxsz
, hdr
);
1267 encode_string(xdr
, name
->len
, name
->name
);
1270 static inline int nfs4_lock_type(struct file_lock
*fl
, int block
)
1272 if (fl
->fl_type
== F_RDLCK
)
1273 return block
? NFS4_READW_LT
: NFS4_READ_LT
;
1274 return block
? NFS4_WRITEW_LT
: NFS4_WRITE_LT
;
1277 static inline uint64_t nfs4_lock_length(struct file_lock
*fl
)
1279 if (fl
->fl_end
== OFFSET_MAX
)
1280 return ~(uint64_t)0;
1281 return fl
->fl_end
- fl
->fl_start
+ 1;
1284 static void encode_lockowner(struct xdr_stream
*xdr
, const struct nfs_lowner
*lowner
)
1288 p
= reserve_space(xdr
, 32);
1289 p
= xdr_encode_hyper(p
, lowner
->clientid
);
1290 *p
++ = cpu_to_be32(20);
1291 p
= xdr_encode_opaque_fixed(p
, "lock id:", 8);
1292 *p
++ = cpu_to_be32(lowner
->s_dev
);
1293 xdr_encode_hyper(p
, lowner
->id
);
1297 * opcode,type,reclaim,offset,length,new_lock_owner = 32
1298 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
1300 static void encode_lock(struct xdr_stream
*xdr
, const struct nfs_lock_args
*args
, struct compound_hdr
*hdr
)
1304 encode_op_hdr(xdr
, OP_LOCK
, decode_lock_maxsz
, hdr
);
1305 p
= reserve_space(xdr
, 28);
1306 *p
++ = cpu_to_be32(nfs4_lock_type(args
->fl
, args
->block
));
1307 *p
++ = cpu_to_be32(args
->reclaim
);
1308 p
= xdr_encode_hyper(p
, args
->fl
->fl_start
);
1309 p
= xdr_encode_hyper(p
, nfs4_lock_length(args
->fl
));
1310 *p
= cpu_to_be32(args
->new_lock_owner
);
1311 if (args
->new_lock_owner
){
1312 encode_nfs4_seqid(xdr
, args
->open_seqid
);
1313 encode_nfs4_stateid(xdr
, args
->open_stateid
);
1314 encode_nfs4_seqid(xdr
, args
->lock_seqid
);
1315 encode_lockowner(xdr
, &args
->lock_owner
);
1318 encode_nfs4_stateid(xdr
, args
->lock_stateid
);
1319 encode_nfs4_seqid(xdr
, args
->lock_seqid
);
1323 static void encode_lockt(struct xdr_stream
*xdr
, const struct nfs_lockt_args
*args
, struct compound_hdr
*hdr
)
1327 encode_op_hdr(xdr
, OP_LOCKT
, decode_lockt_maxsz
, hdr
);
1328 p
= reserve_space(xdr
, 20);
1329 *p
++ = cpu_to_be32(nfs4_lock_type(args
->fl
, 0));
1330 p
= xdr_encode_hyper(p
, args
->fl
->fl_start
);
1331 p
= xdr_encode_hyper(p
, nfs4_lock_length(args
->fl
));
1332 encode_lockowner(xdr
, &args
->lock_owner
);
1335 static void encode_locku(struct xdr_stream
*xdr
, const struct nfs_locku_args
*args
, struct compound_hdr
*hdr
)
1339 encode_op_hdr(xdr
, OP_LOCKU
, decode_locku_maxsz
, hdr
);
1340 encode_uint32(xdr
, nfs4_lock_type(args
->fl
, 0));
1341 encode_nfs4_seqid(xdr
, args
->seqid
);
1342 encode_nfs4_stateid(xdr
, args
->stateid
);
1343 p
= reserve_space(xdr
, 16);
1344 p
= xdr_encode_hyper(p
, args
->fl
->fl_start
);
1345 xdr_encode_hyper(p
, nfs4_lock_length(args
->fl
));
1348 static void encode_release_lockowner(struct xdr_stream
*xdr
, const struct nfs_lowner
*lowner
, struct compound_hdr
*hdr
)
1350 encode_op_hdr(xdr
, OP_RELEASE_LOCKOWNER
, decode_release_lockowner_maxsz
, hdr
);
1351 encode_lockowner(xdr
, lowner
);
1354 static void encode_lookup(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1356 encode_op_hdr(xdr
, OP_LOOKUP
, decode_lookup_maxsz
, hdr
);
1357 encode_string(xdr
, name
->len
, name
->name
);
1360 static void encode_share_access(struct xdr_stream
*xdr
, fmode_t fmode
)
1364 p
= reserve_space(xdr
, 8);
1365 switch (fmode
& (FMODE_READ
|FMODE_WRITE
)) {
1367 *p
++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ
);
1370 *p
++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE
);
1372 case FMODE_READ
|FMODE_WRITE
:
1373 *p
++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH
);
1376 *p
++ = cpu_to_be32(0);
1378 *p
= cpu_to_be32(0); /* for linux, share_deny = 0 always */
1381 static inline void encode_openhdr(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
1385 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1388 encode_nfs4_seqid(xdr
, arg
->seqid
);
1389 encode_share_access(xdr
, arg
->fmode
);
1390 p
= reserve_space(xdr
, 36);
1391 p
= xdr_encode_hyper(p
, arg
->clientid
);
1392 *p
++ = cpu_to_be32(24);
1393 p
= xdr_encode_opaque_fixed(p
, "open id:", 8);
1394 *p
++ = cpu_to_be32(arg
->server
->s_dev
);
1395 *p
++ = cpu_to_be32(arg
->id
.uniquifier
);
1396 xdr_encode_hyper(p
, arg
->id
.create_time
);
1399 static inline void encode_createmode(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
1404 p
= reserve_space(xdr
, 4);
1405 switch(arg
->createmode
) {
1406 case NFS4_CREATE_UNCHECKED
:
1407 *p
= cpu_to_be32(NFS4_CREATE_UNCHECKED
);
1408 encode_attrs(xdr
, arg
->u
.attrs
, arg
->label
, arg
->server
);
1410 case NFS4_CREATE_GUARDED
:
1411 *p
= cpu_to_be32(NFS4_CREATE_GUARDED
);
1412 encode_attrs(xdr
, arg
->u
.attrs
, arg
->label
, arg
->server
);
1414 case NFS4_CREATE_EXCLUSIVE
:
1415 *p
= cpu_to_be32(NFS4_CREATE_EXCLUSIVE
);
1416 encode_nfs4_verifier(xdr
, &arg
->u
.verifier
);
1418 case NFS4_CREATE_EXCLUSIVE4_1
:
1419 *p
= cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1
);
1420 encode_nfs4_verifier(xdr
, &arg
->u
.verifier
);
1422 encode_attrs(xdr
, &dummy
, arg
->label
, arg
->server
);
1426 static void encode_opentype(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
1430 p
= reserve_space(xdr
, 4);
1431 switch (arg
->open_flags
& O_CREAT
) {
1433 *p
= cpu_to_be32(NFS4_OPEN_NOCREATE
);
1436 *p
= cpu_to_be32(NFS4_OPEN_CREATE
);
1437 encode_createmode(xdr
, arg
);
1441 static inline void encode_delegation_type(struct xdr_stream
*xdr
, fmode_t delegation_type
)
1445 p
= reserve_space(xdr
, 4);
1446 switch (delegation_type
) {
1448 *p
= cpu_to_be32(NFS4_OPEN_DELEGATE_NONE
);
1451 *p
= cpu_to_be32(NFS4_OPEN_DELEGATE_READ
);
1453 case FMODE_WRITE
|FMODE_READ
:
1454 *p
= cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE
);
1461 static inline void encode_claim_null(struct xdr_stream
*xdr
, const struct qstr
*name
)
1465 p
= reserve_space(xdr
, 4);
1466 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_NULL
);
1467 encode_string(xdr
, name
->len
, name
->name
);
1470 static inline void encode_claim_previous(struct xdr_stream
*xdr
, fmode_t type
)
1474 p
= reserve_space(xdr
, 4);
1475 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS
);
1476 encode_delegation_type(xdr
, type
);
1479 static inline void encode_claim_delegate_cur(struct xdr_stream
*xdr
, const struct qstr
*name
, const nfs4_stateid
*stateid
)
1483 p
= reserve_space(xdr
, 4);
1484 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR
);
1485 encode_nfs4_stateid(xdr
, stateid
);
1486 encode_string(xdr
, name
->len
, name
->name
);
1489 static inline void encode_claim_fh(struct xdr_stream
*xdr
)
1493 p
= reserve_space(xdr
, 4);
1494 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_FH
);
1497 static inline void encode_claim_delegate_cur_fh(struct xdr_stream
*xdr
, const nfs4_stateid
*stateid
)
1501 p
= reserve_space(xdr
, 4);
1502 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_DELEG_CUR_FH
);
1503 encode_nfs4_stateid(xdr
, stateid
);
1506 static void encode_open(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
, struct compound_hdr
*hdr
)
1508 encode_op_hdr(xdr
, OP_OPEN
, decode_open_maxsz
, hdr
);
1509 encode_openhdr(xdr
, arg
);
1510 encode_opentype(xdr
, arg
);
1511 switch (arg
->claim
) {
1512 case NFS4_OPEN_CLAIM_NULL
:
1513 encode_claim_null(xdr
, arg
->name
);
1515 case NFS4_OPEN_CLAIM_PREVIOUS
:
1516 encode_claim_previous(xdr
, arg
->u
.delegation_type
);
1518 case NFS4_OPEN_CLAIM_DELEGATE_CUR
:
1519 encode_claim_delegate_cur(xdr
, arg
->name
, &arg
->u
.delegation
);
1521 case NFS4_OPEN_CLAIM_FH
:
1522 encode_claim_fh(xdr
);
1524 case NFS4_OPEN_CLAIM_DELEG_CUR_FH
:
1525 encode_claim_delegate_cur_fh(xdr
, &arg
->u
.delegation
);
1532 static void encode_open_confirm(struct xdr_stream
*xdr
, const struct nfs_open_confirmargs
*arg
, struct compound_hdr
*hdr
)
1534 encode_op_hdr(xdr
, OP_OPEN_CONFIRM
, decode_open_confirm_maxsz
, hdr
);
1535 encode_nfs4_stateid(xdr
, arg
->stateid
);
1536 encode_nfs4_seqid(xdr
, arg
->seqid
);
1539 static void encode_open_downgrade(struct xdr_stream
*xdr
, const struct nfs_closeargs
*arg
, struct compound_hdr
*hdr
)
1541 encode_op_hdr(xdr
, OP_OPEN_DOWNGRADE
, decode_open_downgrade_maxsz
, hdr
);
1542 encode_nfs4_stateid(xdr
, arg
->stateid
);
1543 encode_nfs4_seqid(xdr
, arg
->seqid
);
1544 encode_share_access(xdr
, arg
->fmode
);
1548 encode_putfh(struct xdr_stream
*xdr
, const struct nfs_fh
*fh
, struct compound_hdr
*hdr
)
1550 encode_op_hdr(xdr
, OP_PUTFH
, decode_putfh_maxsz
, hdr
);
1551 encode_string(xdr
, fh
->size
, fh
->data
);
1554 static void encode_putrootfh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1556 encode_op_hdr(xdr
, OP_PUTROOTFH
, decode_putrootfh_maxsz
, hdr
);
1559 static void encode_read(struct xdr_stream
*xdr
, const struct nfs_pgio_args
*args
,
1560 struct compound_hdr
*hdr
)
1564 encode_op_hdr(xdr
, OP_READ
, decode_read_maxsz
, hdr
);
1565 encode_nfs4_stateid(xdr
, &args
->stateid
);
1567 p
= reserve_space(xdr
, 12);
1568 p
= xdr_encode_hyper(p
, args
->offset
);
1569 *p
= cpu_to_be32(args
->count
);
1572 static void encode_readdir(struct xdr_stream
*xdr
, const struct nfs4_readdir_arg
*readdir
, struct rpc_rqst
*req
, struct compound_hdr
*hdr
)
1574 uint32_t attrs
[3] = {
1575 FATTR4_WORD0_RDATTR_ERROR
,
1576 FATTR4_WORD1_MOUNTED_ON_FILEID
,
1578 uint32_t dircount
= readdir
->count
>> 1;
1580 uint32_t attrlen
= 0;
1583 if (readdir
->plus
) {
1584 attrs
[0] |= FATTR4_WORD0_TYPE
|FATTR4_WORD0_CHANGE
|FATTR4_WORD0_SIZE
|
1585 FATTR4_WORD0_FSID
|FATTR4_WORD0_FILEHANDLE
|FATTR4_WORD0_FILEID
;
1586 attrs
[1] |= FATTR4_WORD1_MODE
|FATTR4_WORD1_NUMLINKS
|FATTR4_WORD1_OWNER
|
1587 FATTR4_WORD1_OWNER_GROUP
|FATTR4_WORD1_RAWDEV
|
1588 FATTR4_WORD1_SPACE_USED
|FATTR4_WORD1_TIME_ACCESS
|
1589 FATTR4_WORD1_TIME_METADATA
|FATTR4_WORD1_TIME_MODIFY
;
1590 attrs
[2] |= FATTR4_WORD2_SECURITY_LABEL
;
1593 /* Use mounted_on_fileid only if the server supports it */
1594 if (!(readdir
->bitmask
[1] & FATTR4_WORD1_MOUNTED_ON_FILEID
))
1595 attrs
[0] |= FATTR4_WORD0_FILEID
;
1596 for (i
= 0; i
< ARRAY_SIZE(attrs
); i
++) {
1597 attrs
[i
] &= readdir
->bitmask
[i
];
1602 encode_op_hdr(xdr
, OP_READDIR
, decode_readdir_maxsz
, hdr
);
1603 encode_uint64(xdr
, readdir
->cookie
);
1604 encode_nfs4_verifier(xdr
, &readdir
->verifier
);
1605 p
= reserve_space(xdr
, 12 + (attrlen
<< 2));
1606 *p
++ = cpu_to_be32(dircount
);
1607 *p
++ = cpu_to_be32(readdir
->count
);
1608 *p
++ = cpu_to_be32(attrlen
);
1609 for (i
= 0; i
< attrlen
; i
++)
1610 *p
++ = cpu_to_be32(attrs
[i
]);
1611 memcpy(verf
, readdir
->verifier
.data
, sizeof(verf
));
1613 dprintk("%s: cookie = %llu, verifier = %08x:%08x, bitmap = %08x:%08x:%08x\n",
1615 (unsigned long long)readdir
->cookie
,
1617 attrs
[0] & readdir
->bitmask
[0],
1618 attrs
[1] & readdir
->bitmask
[1],
1619 attrs
[2] & readdir
->bitmask
[2]);
1622 static void encode_readlink(struct xdr_stream
*xdr
, const struct nfs4_readlink
*readlink
, struct rpc_rqst
*req
, struct compound_hdr
*hdr
)
1624 encode_op_hdr(xdr
, OP_READLINK
, decode_readlink_maxsz
, hdr
);
1627 static void encode_remove(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1629 encode_op_hdr(xdr
, OP_REMOVE
, decode_remove_maxsz
, hdr
);
1630 encode_string(xdr
, name
->len
, name
->name
);
1633 static void encode_rename(struct xdr_stream
*xdr
, const struct qstr
*oldname
, const struct qstr
*newname
, struct compound_hdr
*hdr
)
1635 encode_op_hdr(xdr
, OP_RENAME
, decode_rename_maxsz
, hdr
);
1636 encode_string(xdr
, oldname
->len
, oldname
->name
);
1637 encode_string(xdr
, newname
->len
, newname
->name
);
1640 static void encode_renew(struct xdr_stream
*xdr
, clientid4 clid
,
1641 struct compound_hdr
*hdr
)
1643 encode_op_hdr(xdr
, OP_RENEW
, decode_renew_maxsz
, hdr
);
1644 encode_uint64(xdr
, clid
);
1648 encode_restorefh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1650 encode_op_hdr(xdr
, OP_RESTOREFH
, decode_restorefh_maxsz
, hdr
);
1654 encode_setacl(struct xdr_stream
*xdr
, struct nfs_setaclargs
*arg
, struct compound_hdr
*hdr
)
1658 encode_op_hdr(xdr
, OP_SETATTR
, decode_setacl_maxsz
, hdr
);
1659 encode_nfs4_stateid(xdr
, &zero_stateid
);
1660 p
= reserve_space(xdr
, 2*4);
1661 *p
++ = cpu_to_be32(1);
1662 *p
= cpu_to_be32(FATTR4_WORD0_ACL
);
1663 p
= reserve_space(xdr
, 4);
1664 *p
= cpu_to_be32(arg
->acl_len
);
1665 xdr_write_pages(xdr
, arg
->acl_pages
, arg
->acl_pgbase
, arg
->acl_len
);
1669 encode_savefh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1671 encode_op_hdr(xdr
, OP_SAVEFH
, decode_savefh_maxsz
, hdr
);
1674 static void encode_setattr(struct xdr_stream
*xdr
, const struct nfs_setattrargs
*arg
, const struct nfs_server
*server
, struct compound_hdr
*hdr
)
1676 encode_op_hdr(xdr
, OP_SETATTR
, decode_setattr_maxsz
, hdr
);
1677 encode_nfs4_stateid(xdr
, &arg
->stateid
);
1678 encode_attrs(xdr
, arg
->iap
, arg
->label
, server
);
1681 static void encode_setclientid(struct xdr_stream
*xdr
, const struct nfs4_setclientid
*setclientid
, struct compound_hdr
*hdr
)
1685 encode_op_hdr(xdr
, OP_SETCLIENTID
, decode_setclientid_maxsz
, hdr
);
1686 encode_nfs4_verifier(xdr
, setclientid
->sc_verifier
);
1688 encode_string(xdr
, setclientid
->sc_name_len
, setclientid
->sc_name
);
1689 p
= reserve_space(xdr
, 4);
1690 *p
= cpu_to_be32(setclientid
->sc_prog
);
1691 encode_string(xdr
, setclientid
->sc_netid_len
, setclientid
->sc_netid
);
1692 encode_string(xdr
, setclientid
->sc_uaddr_len
, setclientid
->sc_uaddr
);
1693 p
= reserve_space(xdr
, 4);
1694 *p
= cpu_to_be32(setclientid
->sc_cb_ident
);
1697 static void encode_setclientid_confirm(struct xdr_stream
*xdr
, const struct nfs4_setclientid_res
*arg
, struct compound_hdr
*hdr
)
1699 encode_op_hdr(xdr
, OP_SETCLIENTID_CONFIRM
,
1700 decode_setclientid_confirm_maxsz
, hdr
);
1701 encode_uint64(xdr
, arg
->clientid
);
1702 encode_nfs4_verifier(xdr
, &arg
->confirm
);
1705 static void encode_write(struct xdr_stream
*xdr
, const struct nfs_pgio_args
*args
,
1706 struct compound_hdr
*hdr
)
1710 encode_op_hdr(xdr
, OP_WRITE
, decode_write_maxsz
, hdr
);
1711 encode_nfs4_stateid(xdr
, &args
->stateid
);
1713 p
= reserve_space(xdr
, 16);
1714 p
= xdr_encode_hyper(p
, args
->offset
);
1715 *p
++ = cpu_to_be32(args
->stable
);
1716 *p
= cpu_to_be32(args
->count
);
1718 xdr_write_pages(xdr
, args
->pages
, args
->pgbase
, args
->count
);
1721 static void encode_delegreturn(struct xdr_stream
*xdr
, const nfs4_stateid
*stateid
, struct compound_hdr
*hdr
)
1723 encode_op_hdr(xdr
, OP_DELEGRETURN
, decode_delegreturn_maxsz
, hdr
);
1724 encode_nfs4_stateid(xdr
, stateid
);
1727 static void encode_secinfo(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1729 encode_op_hdr(xdr
, OP_SECINFO
, decode_secinfo_maxsz
, hdr
);
1730 encode_string(xdr
, name
->len
, name
->name
);
1733 #if defined(CONFIG_NFS_V4_1)
1734 /* NFSv4.1 operations */
1735 static void encode_bind_conn_to_session(struct xdr_stream
*xdr
,
1736 struct nfs4_session
*session
,
1737 struct compound_hdr
*hdr
)
1741 encode_op_hdr(xdr
, OP_BIND_CONN_TO_SESSION
,
1742 decode_bind_conn_to_session_maxsz
, hdr
);
1743 encode_opaque_fixed(xdr
, session
->sess_id
.data
, NFS4_MAX_SESSIONID_LEN
);
1744 p
= xdr_reserve_space(xdr
, 8);
1745 *p
++ = cpu_to_be32(NFS4_CDFC4_BACK_OR_BOTH
);
1746 *p
= 0; /* use_conn_in_rdma_mode = False */
1749 static void encode_op_map(struct xdr_stream
*xdr
, struct nfs4_op_map
*op_map
)
1752 encode_uint32(xdr
, NFS4_OP_MAP_NUM_WORDS
);
1753 for (i
= 0; i
< NFS4_OP_MAP_NUM_WORDS
; i
++)
1754 encode_uint32(xdr
, op_map
->u
.words
[i
]);
1757 static void encode_exchange_id(struct xdr_stream
*xdr
,
1758 struct nfs41_exchange_id_args
*args
,
1759 struct compound_hdr
*hdr
)
1762 char impl_name
[IMPL_NAME_LIMIT
];
1765 encode_op_hdr(xdr
, OP_EXCHANGE_ID
, decode_exchange_id_maxsz
, hdr
);
1766 encode_nfs4_verifier(xdr
, args
->verifier
);
1768 encode_string(xdr
, args
->id_len
, args
->id
);
1770 encode_uint32(xdr
, args
->flags
);
1771 encode_uint32(xdr
, args
->state_protect
.how
);
1773 switch (args
->state_protect
.how
) {
1777 encode_op_map(xdr
, &args
->state_protect
.enforce
);
1778 encode_op_map(xdr
, &args
->state_protect
.allow
);
1785 if (send_implementation_id
&&
1786 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
) > 1 &&
1787 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
)
1788 <= sizeof(impl_name
) + 1)
1789 len
= snprintf(impl_name
, sizeof(impl_name
), "%s %s %s %s",
1790 utsname()->sysname
, utsname()->release
,
1791 utsname()->version
, utsname()->machine
);
1794 encode_uint32(xdr
, 1); /* implementation id array length=1 */
1797 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
) - 1,
1798 CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
);
1799 encode_string(xdr
, len
, impl_name
);
1800 /* just send zeros for nii_date - the date is in nii_name */
1801 p
= reserve_space(xdr
, 12);
1802 p
= xdr_encode_hyper(p
, 0);
1803 *p
= cpu_to_be32(0);
1805 encode_uint32(xdr
, 0); /* implementation id array length=0 */
1808 static void encode_create_session(struct xdr_stream
*xdr
,
1809 struct nfs41_create_session_args
*args
,
1810 struct compound_hdr
*hdr
)
1813 char machine_name
[NFS4_MAX_MACHINE_NAME_LEN
];
1815 struct nfs_client
*clp
= args
->client
;
1816 struct nfs_net
*nn
= net_generic(clp
->cl_net
, nfs_net_id
);
1817 u32 max_resp_sz_cached
;
1820 * Assumes OPEN is the biggest non-idempotent compound.
1821 * 2 is the verifier.
1823 max_resp_sz_cached
= (NFS4_dec_open_sz
+ RPC_REPHDRSIZE
+
1824 RPC_MAX_AUTH_SIZE
+ 2) * XDR_UNIT
;
1826 len
= scnprintf(machine_name
, sizeof(machine_name
), "%s",
1829 encode_op_hdr(xdr
, OP_CREATE_SESSION
, decode_create_session_maxsz
, hdr
);
1830 p
= reserve_space(xdr
, 16 + 2*28 + 20 + len
+ 12);
1831 p
= xdr_encode_hyper(p
, clp
->cl_clientid
);
1832 *p
++ = cpu_to_be32(clp
->cl_seqid
); /*Sequence id */
1833 *p
++ = cpu_to_be32(args
->flags
); /*flags */
1836 *p
++ = cpu_to_be32(0); /* header padding size */
1837 *p
++ = cpu_to_be32(args
->fc_attrs
.max_rqst_sz
); /* max req size */
1838 *p
++ = cpu_to_be32(args
->fc_attrs
.max_resp_sz
); /* max resp size */
1839 *p
++ = cpu_to_be32(max_resp_sz_cached
); /* Max resp sz cached */
1840 *p
++ = cpu_to_be32(args
->fc_attrs
.max_ops
); /* max operations */
1841 *p
++ = cpu_to_be32(args
->fc_attrs
.max_reqs
); /* max requests */
1842 *p
++ = cpu_to_be32(0); /* rdmachannel_attrs */
1845 *p
++ = cpu_to_be32(0); /* header padding size */
1846 *p
++ = cpu_to_be32(args
->bc_attrs
.max_rqst_sz
); /* max req size */
1847 *p
++ = cpu_to_be32(args
->bc_attrs
.max_resp_sz
); /* max resp size */
1848 *p
++ = cpu_to_be32(args
->bc_attrs
.max_resp_sz_cached
); /* Max resp sz cached */
1849 *p
++ = cpu_to_be32(args
->bc_attrs
.max_ops
); /* max operations */
1850 *p
++ = cpu_to_be32(args
->bc_attrs
.max_reqs
); /* max requests */
1851 *p
++ = cpu_to_be32(0); /* rdmachannel_attrs */
1853 *p
++ = cpu_to_be32(args
->cb_program
); /* cb_program */
1854 *p
++ = cpu_to_be32(1);
1855 *p
++ = cpu_to_be32(RPC_AUTH_UNIX
); /* auth_sys */
1857 /* authsys_parms rfc1831 */
1858 *p
++ = cpu_to_be32(nn
->boot_time
.tv_nsec
); /* stamp */
1859 p
= xdr_encode_opaque(p
, machine_name
, len
);
1860 *p
++ = cpu_to_be32(0); /* UID */
1861 *p
++ = cpu_to_be32(0); /* GID */
1862 *p
= cpu_to_be32(0); /* No more gids */
1865 static void encode_destroy_session(struct xdr_stream
*xdr
,
1866 struct nfs4_session
*session
,
1867 struct compound_hdr
*hdr
)
1869 encode_op_hdr(xdr
, OP_DESTROY_SESSION
, decode_destroy_session_maxsz
, hdr
);
1870 encode_opaque_fixed(xdr
, session
->sess_id
.data
, NFS4_MAX_SESSIONID_LEN
);
1873 static void encode_destroy_clientid(struct xdr_stream
*xdr
,
1875 struct compound_hdr
*hdr
)
1877 encode_op_hdr(xdr
, OP_DESTROY_CLIENTID
, decode_destroy_clientid_maxsz
, hdr
);
1878 encode_uint64(xdr
, clientid
);
1881 static void encode_reclaim_complete(struct xdr_stream
*xdr
,
1882 struct nfs41_reclaim_complete_args
*args
,
1883 struct compound_hdr
*hdr
)
1885 encode_op_hdr(xdr
, OP_RECLAIM_COMPLETE
, decode_reclaim_complete_maxsz
, hdr
);
1886 encode_uint32(xdr
, args
->one_fs
);
1888 #endif /* CONFIG_NFS_V4_1 */
1890 static void encode_sequence(struct xdr_stream
*xdr
,
1891 const struct nfs4_sequence_args
*args
,
1892 struct compound_hdr
*hdr
)
1894 #if defined(CONFIG_NFS_V4_1)
1895 struct nfs4_session
*session
;
1896 struct nfs4_slot_table
*tp
;
1897 struct nfs4_slot
*slot
= args
->sa_slot
;
1901 session
= tp
->session
;
1905 encode_op_hdr(xdr
, OP_SEQUENCE
, decode_sequence_maxsz
, hdr
);
1908 * Sessionid + seqid + slotid + max slotid + cache_this
1910 dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
1911 "max_slotid=%d cache_this=%d\n",
1913 ((u32
*)session
->sess_id
.data
)[0],
1914 ((u32
*)session
->sess_id
.data
)[1],
1915 ((u32
*)session
->sess_id
.data
)[2],
1916 ((u32
*)session
->sess_id
.data
)[3],
1917 slot
->seq_nr
, slot
->slot_nr
,
1918 tp
->highest_used_slotid
, args
->sa_cache_this
);
1919 p
= reserve_space(xdr
, NFS4_MAX_SESSIONID_LEN
+ 16);
1920 p
= xdr_encode_opaque_fixed(p
, session
->sess_id
.data
, NFS4_MAX_SESSIONID_LEN
);
1921 *p
++ = cpu_to_be32(slot
->seq_nr
);
1922 *p
++ = cpu_to_be32(slot
->slot_nr
);
1923 *p
++ = cpu_to_be32(tp
->highest_used_slotid
);
1924 *p
= cpu_to_be32(args
->sa_cache_this
);
1925 #endif /* CONFIG_NFS_V4_1 */
1928 #ifdef CONFIG_NFS_V4_1
1930 encode_getdevicelist(struct xdr_stream
*xdr
,
1931 const struct nfs4_getdevicelist_args
*args
,
1932 struct compound_hdr
*hdr
)
1935 nfs4_verifier dummy
= {
1939 encode_op_hdr(xdr
, OP_GETDEVICELIST
, decode_getdevicelist_maxsz
, hdr
);
1940 p
= reserve_space(xdr
, 16);
1941 *p
++ = cpu_to_be32(args
->layoutclass
);
1942 *p
++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM
);
1943 xdr_encode_hyper(p
, 0ULL); /* cookie */
1944 encode_nfs4_verifier(xdr
, &dummy
);
1948 encode_getdeviceinfo(struct xdr_stream
*xdr
,
1949 const struct nfs4_getdeviceinfo_args
*args
,
1950 struct compound_hdr
*hdr
)
1954 encode_op_hdr(xdr
, OP_GETDEVICEINFO
, decode_getdeviceinfo_maxsz
, hdr
);
1955 p
= reserve_space(xdr
, 12 + NFS4_DEVICEID4_SIZE
);
1956 p
= xdr_encode_opaque_fixed(p
, args
->pdev
->dev_id
.data
,
1957 NFS4_DEVICEID4_SIZE
);
1958 *p
++ = cpu_to_be32(args
->pdev
->layout_type
);
1959 *p
++ = cpu_to_be32(args
->pdev
->maxcount
); /* gdia_maxcount */
1960 *p
++ = cpu_to_be32(0); /* bitmap length 0 */
1964 encode_layoutget(struct xdr_stream
*xdr
,
1965 const struct nfs4_layoutget_args
*args
,
1966 struct compound_hdr
*hdr
)
1970 encode_op_hdr(xdr
, OP_LAYOUTGET
, decode_layoutget_maxsz
, hdr
);
1971 p
= reserve_space(xdr
, 36);
1972 *p
++ = cpu_to_be32(0); /* Signal layout available */
1973 *p
++ = cpu_to_be32(args
->type
);
1974 *p
++ = cpu_to_be32(args
->range
.iomode
);
1975 p
= xdr_encode_hyper(p
, args
->range
.offset
);
1976 p
= xdr_encode_hyper(p
, args
->range
.length
);
1977 p
= xdr_encode_hyper(p
, args
->minlength
);
1978 encode_nfs4_stateid(xdr
, &args
->stateid
);
1979 encode_uint32(xdr
, args
->maxcount
);
1981 dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n",
1985 (unsigned long)args
->range
.offset
,
1986 (unsigned long)args
->range
.length
,
1991 encode_layoutcommit(struct xdr_stream
*xdr
,
1992 struct inode
*inode
,
1993 const struct nfs4_layoutcommit_args
*args
,
1994 struct compound_hdr
*hdr
)
1998 dprintk("%s: lbw: %llu type: %d\n", __func__
, args
->lastbytewritten
,
1999 NFS_SERVER(args
->inode
)->pnfs_curr_ld
->id
);
2001 encode_op_hdr(xdr
, OP_LAYOUTCOMMIT
, decode_layoutcommit_maxsz
, hdr
);
2002 p
= reserve_space(xdr
, 20);
2003 /* Only whole file layouts */
2004 p
= xdr_encode_hyper(p
, 0); /* offset */
2005 p
= xdr_encode_hyper(p
, args
->lastbytewritten
+ 1); /* length */
2006 *p
= cpu_to_be32(0); /* reclaim */
2007 encode_nfs4_stateid(xdr
, &args
->stateid
);
2008 p
= reserve_space(xdr
, 20);
2009 *p
++ = cpu_to_be32(1); /* newoffset = TRUE */
2010 p
= xdr_encode_hyper(p
, args
->lastbytewritten
);
2011 *p
++ = cpu_to_be32(0); /* Never send time_modify_changed */
2012 *p
++ = cpu_to_be32(NFS_SERVER(args
->inode
)->pnfs_curr_ld
->id
);/* type */
2014 if (NFS_SERVER(inode
)->pnfs_curr_ld
->encode_layoutcommit
)
2015 NFS_SERVER(inode
)->pnfs_curr_ld
->encode_layoutcommit(
2016 NFS_I(inode
)->layout
, xdr
, args
);
2018 encode_uint32(xdr
, 0); /* no layout-type payload */
2024 encode_layoutreturn(struct xdr_stream
*xdr
,
2025 const struct nfs4_layoutreturn_args
*args
,
2026 struct compound_hdr
*hdr
)
2030 encode_op_hdr(xdr
, OP_LAYOUTRETURN
, decode_layoutreturn_maxsz
, hdr
);
2031 p
= reserve_space(xdr
, 16);
2032 *p
++ = cpu_to_be32(0); /* reclaim. always 0 for now */
2033 *p
++ = cpu_to_be32(args
->layout_type
);
2034 *p
++ = cpu_to_be32(IOMODE_ANY
);
2035 *p
= cpu_to_be32(RETURN_FILE
);
2036 p
= reserve_space(xdr
, 16);
2037 p
= xdr_encode_hyper(p
, 0);
2038 p
= xdr_encode_hyper(p
, NFS4_MAX_UINT64
);
2039 spin_lock(&args
->inode
->i_lock
);
2040 encode_nfs4_stateid(xdr
, &args
->stateid
);
2041 spin_unlock(&args
->inode
->i_lock
);
2042 if (NFS_SERVER(args
->inode
)->pnfs_curr_ld
->encode_layoutreturn
) {
2043 NFS_SERVER(args
->inode
)->pnfs_curr_ld
->encode_layoutreturn(
2044 NFS_I(args
->inode
)->layout
, xdr
, args
);
2046 encode_uint32(xdr
, 0);
2050 encode_secinfo_no_name(struct xdr_stream
*xdr
,
2051 const struct nfs41_secinfo_no_name_args
*args
,
2052 struct compound_hdr
*hdr
)
2054 encode_op_hdr(xdr
, OP_SECINFO_NO_NAME
, decode_secinfo_no_name_maxsz
, hdr
);
2055 encode_uint32(xdr
, args
->style
);
2059 static void encode_test_stateid(struct xdr_stream
*xdr
,
2060 struct nfs41_test_stateid_args
*args
,
2061 struct compound_hdr
*hdr
)
2063 encode_op_hdr(xdr
, OP_TEST_STATEID
, decode_test_stateid_maxsz
, hdr
);
2064 encode_uint32(xdr
, 1);
2065 encode_nfs4_stateid(xdr
, args
->stateid
);
2068 static void encode_free_stateid(struct xdr_stream
*xdr
,
2069 struct nfs41_free_stateid_args
*args
,
2070 struct compound_hdr
*hdr
)
2072 encode_op_hdr(xdr
, OP_FREE_STATEID
, decode_free_stateid_maxsz
, hdr
);
2073 encode_nfs4_stateid(xdr
, &args
->stateid
);
2075 #endif /* CONFIG_NFS_V4_1 */
2078 * END OF "GENERIC" ENCODE ROUTINES.
2081 static u32
nfs4_xdr_minorversion(const struct nfs4_sequence_args
*args
)
2083 #if defined(CONFIG_NFS_V4_1)
2084 struct nfs4_session
*session
= args
->sa_slot
->table
->session
;
2086 return session
->clp
->cl_mvops
->minor_version
;
2087 #endif /* CONFIG_NFS_V4_1 */
2092 * Encode an ACCESS request
2094 static void nfs4_xdr_enc_access(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2095 const struct nfs4_accessargs
*args
)
2097 struct compound_hdr hdr
= {
2098 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2101 encode_compound_hdr(xdr
, req
, &hdr
);
2102 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2103 encode_putfh(xdr
, args
->fh
, &hdr
);
2104 encode_access(xdr
, args
->access
, &hdr
);
2105 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2110 * Encode LOOKUP request
2112 static void nfs4_xdr_enc_lookup(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2113 const struct nfs4_lookup_arg
*args
)
2115 struct compound_hdr hdr
= {
2116 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2119 encode_compound_hdr(xdr
, req
, &hdr
);
2120 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2121 encode_putfh(xdr
, args
->dir_fh
, &hdr
);
2122 encode_lookup(xdr
, args
->name
, &hdr
);
2123 encode_getfh(xdr
, &hdr
);
2124 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2129 * Encode LOOKUP_ROOT request
2131 static void nfs4_xdr_enc_lookup_root(struct rpc_rqst
*req
,
2132 struct xdr_stream
*xdr
,
2133 const struct nfs4_lookup_root_arg
*args
)
2135 struct compound_hdr hdr
= {
2136 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2139 encode_compound_hdr(xdr
, req
, &hdr
);
2140 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2141 encode_putrootfh(xdr
, &hdr
);
2142 encode_getfh(xdr
, &hdr
);
2143 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2148 * Encode REMOVE request
2150 static void nfs4_xdr_enc_remove(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2151 const struct nfs_removeargs
*args
)
2153 struct compound_hdr hdr
= {
2154 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2157 encode_compound_hdr(xdr
, req
, &hdr
);
2158 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2159 encode_putfh(xdr
, args
->fh
, &hdr
);
2160 encode_remove(xdr
, &args
->name
, &hdr
);
2165 * Encode RENAME request
2167 static void nfs4_xdr_enc_rename(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2168 const struct nfs_renameargs
*args
)
2170 struct compound_hdr hdr
= {
2171 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2174 encode_compound_hdr(xdr
, req
, &hdr
);
2175 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2176 encode_putfh(xdr
, args
->old_dir
, &hdr
);
2177 encode_savefh(xdr
, &hdr
);
2178 encode_putfh(xdr
, args
->new_dir
, &hdr
);
2179 encode_rename(xdr
, args
->old_name
, args
->new_name
, &hdr
);
2184 * Encode LINK request
2186 static void nfs4_xdr_enc_link(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2187 const struct nfs4_link_arg
*args
)
2189 struct compound_hdr hdr
= {
2190 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2193 encode_compound_hdr(xdr
, req
, &hdr
);
2194 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2195 encode_putfh(xdr
, args
->fh
, &hdr
);
2196 encode_savefh(xdr
, &hdr
);
2197 encode_putfh(xdr
, args
->dir_fh
, &hdr
);
2198 encode_link(xdr
, args
->name
, &hdr
);
2199 encode_restorefh(xdr
, &hdr
);
2200 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2205 * Encode CREATE request
2207 static void nfs4_xdr_enc_create(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2208 const struct nfs4_create_arg
*args
)
2210 struct compound_hdr hdr
= {
2211 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2214 encode_compound_hdr(xdr
, req
, &hdr
);
2215 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2216 encode_putfh(xdr
, args
->dir_fh
, &hdr
);
2217 encode_create(xdr
, args
, &hdr
);
2218 encode_getfh(xdr
, &hdr
);
2219 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2224 * Encode SYMLINK request
2226 static void nfs4_xdr_enc_symlink(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2227 const struct nfs4_create_arg
*args
)
2229 nfs4_xdr_enc_create(req
, xdr
, args
);
2233 * Encode GETATTR request
2235 static void nfs4_xdr_enc_getattr(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2236 const struct nfs4_getattr_arg
*args
)
2238 struct compound_hdr hdr
= {
2239 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2242 encode_compound_hdr(xdr
, req
, &hdr
);
2243 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2244 encode_putfh(xdr
, args
->fh
, &hdr
);
2245 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2250 * Encode a CLOSE request
2252 static void nfs4_xdr_enc_close(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2253 struct nfs_closeargs
*args
)
2255 struct compound_hdr hdr
= {
2256 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2259 encode_compound_hdr(xdr
, req
, &hdr
);
2260 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2261 encode_putfh(xdr
, args
->fh
, &hdr
);
2262 encode_close(xdr
, args
, &hdr
);
2263 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2268 * Encode an OPEN request
2270 static void nfs4_xdr_enc_open(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2271 struct nfs_openargs
*args
)
2273 struct compound_hdr hdr
= {
2274 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2277 encode_compound_hdr(xdr
, req
, &hdr
);
2278 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2279 encode_putfh(xdr
, args
->fh
, &hdr
);
2280 encode_open(xdr
, args
, &hdr
);
2281 encode_getfh(xdr
, &hdr
);
2283 encode_access(xdr
, args
->access
, &hdr
);
2284 encode_getfattr_open(xdr
, args
->bitmask
, args
->open_bitmap
, &hdr
);
2289 * Encode an OPEN_CONFIRM request
2291 static void nfs4_xdr_enc_open_confirm(struct rpc_rqst
*req
,
2292 struct xdr_stream
*xdr
,
2293 struct nfs_open_confirmargs
*args
)
2295 struct compound_hdr hdr
= {
2299 encode_compound_hdr(xdr
, req
, &hdr
);
2300 encode_putfh(xdr
, args
->fh
, &hdr
);
2301 encode_open_confirm(xdr
, args
, &hdr
);
2306 * Encode an OPEN request with no attributes.
2308 static void nfs4_xdr_enc_open_noattr(struct rpc_rqst
*req
,
2309 struct xdr_stream
*xdr
,
2310 struct nfs_openargs
*args
)
2312 struct compound_hdr hdr
= {
2313 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2316 encode_compound_hdr(xdr
, req
, &hdr
);
2317 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2318 encode_putfh(xdr
, args
->fh
, &hdr
);
2319 encode_open(xdr
, args
, &hdr
);
2321 encode_access(xdr
, args
->access
, &hdr
);
2322 encode_getfattr_open(xdr
, args
->bitmask
, args
->open_bitmap
, &hdr
);
2327 * Encode an OPEN_DOWNGRADE request
2329 static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst
*req
,
2330 struct xdr_stream
*xdr
,
2331 struct nfs_closeargs
*args
)
2333 struct compound_hdr hdr
= {
2334 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2337 encode_compound_hdr(xdr
, req
, &hdr
);
2338 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2339 encode_putfh(xdr
, args
->fh
, &hdr
);
2340 encode_open_downgrade(xdr
, args
, &hdr
);
2341 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2346 * Encode a LOCK request
2348 static void nfs4_xdr_enc_lock(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2349 struct nfs_lock_args
*args
)
2351 struct compound_hdr hdr
= {
2352 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2355 encode_compound_hdr(xdr
, req
, &hdr
);
2356 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2357 encode_putfh(xdr
, args
->fh
, &hdr
);
2358 encode_lock(xdr
, args
, &hdr
);
2363 * Encode a LOCKT request
2365 static void nfs4_xdr_enc_lockt(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2366 struct nfs_lockt_args
*args
)
2368 struct compound_hdr hdr
= {
2369 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2372 encode_compound_hdr(xdr
, req
, &hdr
);
2373 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2374 encode_putfh(xdr
, args
->fh
, &hdr
);
2375 encode_lockt(xdr
, args
, &hdr
);
2380 * Encode a LOCKU request
2382 static void nfs4_xdr_enc_locku(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2383 struct nfs_locku_args
*args
)
2385 struct compound_hdr hdr
= {
2386 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2389 encode_compound_hdr(xdr
, req
, &hdr
);
2390 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2391 encode_putfh(xdr
, args
->fh
, &hdr
);
2392 encode_locku(xdr
, args
, &hdr
);
2396 static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst
*req
,
2397 struct xdr_stream
*xdr
,
2398 struct nfs_release_lockowner_args
*args
)
2400 struct compound_hdr hdr
= {
2404 encode_compound_hdr(xdr
, req
, &hdr
);
2405 encode_release_lockowner(xdr
, &args
->lock_owner
, &hdr
);
2410 * Encode a READLINK request
2412 static void nfs4_xdr_enc_readlink(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2413 const struct nfs4_readlink
*args
)
2415 struct compound_hdr hdr
= {
2416 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2419 encode_compound_hdr(xdr
, req
, &hdr
);
2420 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2421 encode_putfh(xdr
, args
->fh
, &hdr
);
2422 encode_readlink(xdr
, args
, req
, &hdr
);
2424 xdr_inline_pages(&req
->rq_rcv_buf
, hdr
.replen
<< 2, args
->pages
,
2425 args
->pgbase
, args
->pglen
);
2430 * Encode a READDIR request
2432 static void nfs4_xdr_enc_readdir(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2433 const struct nfs4_readdir_arg
*args
)
2435 struct compound_hdr hdr
= {
2436 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2439 encode_compound_hdr(xdr
, req
, &hdr
);
2440 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2441 encode_putfh(xdr
, args
->fh
, &hdr
);
2442 encode_readdir(xdr
, args
, req
, &hdr
);
2444 xdr_inline_pages(&req
->rq_rcv_buf
, hdr
.replen
<< 2, args
->pages
,
2445 args
->pgbase
, args
->count
);
2446 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
2447 __func__
, hdr
.replen
<< 2, args
->pages
,
2448 args
->pgbase
, args
->count
);
2453 * Encode a READ request
2455 static void nfs4_xdr_enc_read(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2456 struct nfs_pgio_args
*args
)
2458 struct compound_hdr hdr
= {
2459 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2462 encode_compound_hdr(xdr
, req
, &hdr
);
2463 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2464 encode_putfh(xdr
, args
->fh
, &hdr
);
2465 encode_read(xdr
, args
, &hdr
);
2467 xdr_inline_pages(&req
->rq_rcv_buf
, hdr
.replen
<< 2,
2468 args
->pages
, args
->pgbase
, args
->count
);
2469 req
->rq_rcv_buf
.flags
|= XDRBUF_READ
;
2474 * Encode an SETATTR request
2476 static void nfs4_xdr_enc_setattr(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2477 struct nfs_setattrargs
*args
)
2479 struct compound_hdr hdr
= {
2480 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2483 encode_compound_hdr(xdr
, req
, &hdr
);
2484 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2485 encode_putfh(xdr
, args
->fh
, &hdr
);
2486 encode_setattr(xdr
, args
, args
->server
, &hdr
);
2487 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2492 * Encode a GETACL request
2494 static void nfs4_xdr_enc_getacl(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2495 struct nfs_getaclargs
*args
)
2497 struct compound_hdr hdr
= {
2498 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2502 encode_compound_hdr(xdr
, req
, &hdr
);
2503 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2504 encode_putfh(xdr
, args
->fh
, &hdr
);
2505 replen
= hdr
.replen
+ op_decode_hdr_maxsz
+ 1;
2506 encode_getattr_two(xdr
, FATTR4_WORD0_ACL
, 0, &hdr
);
2508 xdr_inline_pages(&req
->rq_rcv_buf
, replen
<< 2,
2509 args
->acl_pages
, args
->acl_pgbase
, args
->acl_len
);
2515 * Encode a WRITE request
2517 static void nfs4_xdr_enc_write(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2518 struct nfs_pgio_args
*args
)
2520 struct compound_hdr hdr
= {
2521 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2524 encode_compound_hdr(xdr
, req
, &hdr
);
2525 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2526 encode_putfh(xdr
, args
->fh
, &hdr
);
2527 encode_write(xdr
, args
, &hdr
);
2528 req
->rq_snd_buf
.flags
|= XDRBUF_WRITE
;
2530 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2537 static void nfs4_xdr_enc_commit(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2538 struct nfs_commitargs
*args
)
2540 struct compound_hdr hdr
= {
2541 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2544 encode_compound_hdr(xdr
, req
, &hdr
);
2545 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2546 encode_putfh(xdr
, args
->fh
, &hdr
);
2547 encode_commit(xdr
, args
, &hdr
);
2554 static void nfs4_xdr_enc_fsinfo(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2555 struct nfs4_fsinfo_arg
*args
)
2557 struct compound_hdr hdr
= {
2558 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2561 encode_compound_hdr(xdr
, req
, &hdr
);
2562 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2563 encode_putfh(xdr
, args
->fh
, &hdr
);
2564 encode_fsinfo(xdr
, args
->bitmask
, &hdr
);
2569 * a PATHCONF request
2571 static void nfs4_xdr_enc_pathconf(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2572 const struct nfs4_pathconf_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_getattr_one(xdr
, args
->bitmask
[0] & nfs4_pathconf_bitmap
[0],
2589 static void nfs4_xdr_enc_statfs(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2590 const struct nfs4_statfs_arg
*args
)
2592 struct compound_hdr hdr
= {
2593 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2596 encode_compound_hdr(xdr
, req
, &hdr
);
2597 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2598 encode_putfh(xdr
, args
->fh
, &hdr
);
2599 encode_getattr_two(xdr
, args
->bitmask
[0] & nfs4_statfs_bitmap
[0],
2600 args
->bitmask
[1] & nfs4_statfs_bitmap
[1], &hdr
);
2605 * GETATTR_BITMAP request
2607 static void nfs4_xdr_enc_server_caps(struct rpc_rqst
*req
,
2608 struct xdr_stream
*xdr
,
2609 struct nfs4_server_caps_arg
*args
)
2611 struct compound_hdr hdr
= {
2612 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2615 encode_compound_hdr(xdr
, req
, &hdr
);
2616 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2617 encode_putfh(xdr
, args
->fhandle
, &hdr
);
2618 encode_getattr_one(xdr
, FATTR4_WORD0_SUPPORTED_ATTRS
|
2619 FATTR4_WORD0_FH_EXPIRE_TYPE
|
2620 FATTR4_WORD0_LINK_SUPPORT
|
2621 FATTR4_WORD0_SYMLINK_SUPPORT
|
2622 FATTR4_WORD0_ACLSUPPORT
, &hdr
);
2629 static void nfs4_xdr_enc_renew(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2630 struct nfs_client
*clp
)
2632 struct compound_hdr hdr
= {
2636 encode_compound_hdr(xdr
, req
, &hdr
);
2637 encode_renew(xdr
, clp
->cl_clientid
, &hdr
);
2642 * a SETCLIENTID request
2644 static void nfs4_xdr_enc_setclientid(struct rpc_rqst
*req
,
2645 struct xdr_stream
*xdr
,
2646 struct nfs4_setclientid
*sc
)
2648 struct compound_hdr hdr
= {
2652 encode_compound_hdr(xdr
, req
, &hdr
);
2653 encode_setclientid(xdr
, sc
, &hdr
);
2658 * a SETCLIENTID_CONFIRM request
2660 static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst
*req
,
2661 struct xdr_stream
*xdr
,
2662 struct nfs4_setclientid_res
*arg
)
2664 struct compound_hdr hdr
= {
2668 encode_compound_hdr(xdr
, req
, &hdr
);
2669 encode_setclientid_confirm(xdr
, arg
, &hdr
);
2674 * DELEGRETURN request
2676 static void nfs4_xdr_enc_delegreturn(struct rpc_rqst
*req
,
2677 struct xdr_stream
*xdr
,
2678 const struct nfs4_delegreturnargs
*args
)
2680 struct compound_hdr hdr
= {
2681 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2684 encode_compound_hdr(xdr
, req
, &hdr
);
2685 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2686 encode_putfh(xdr
, args
->fhandle
, &hdr
);
2687 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2688 encode_delegreturn(xdr
, args
->stateid
, &hdr
);
2693 * Encode FS_LOCATIONS request
2695 static void nfs4_xdr_enc_fs_locations(struct rpc_rqst
*req
,
2696 struct xdr_stream
*xdr
,
2697 struct nfs4_fs_locations_arg
*args
)
2699 struct compound_hdr hdr
= {
2700 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2704 encode_compound_hdr(xdr
, req
, &hdr
);
2705 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2706 if (args
->migration
) {
2707 encode_putfh(xdr
, args
->fh
, &hdr
);
2708 replen
= hdr
.replen
;
2709 encode_fs_locations(xdr
, args
->bitmask
, &hdr
);
2711 encode_renew(xdr
, args
->clientid
, &hdr
);
2713 encode_putfh(xdr
, args
->dir_fh
, &hdr
);
2714 encode_lookup(xdr
, args
->name
, &hdr
);
2715 replen
= hdr
.replen
;
2716 encode_fs_locations(xdr
, args
->bitmask
, &hdr
);
2719 /* Set up reply kvec to capture returned fs_locations array. */
2720 xdr_inline_pages(&req
->rq_rcv_buf
, replen
<< 2, &args
->page
,
2726 * Encode SECINFO request
2728 static void nfs4_xdr_enc_secinfo(struct rpc_rqst
*req
,
2729 struct xdr_stream
*xdr
,
2730 struct nfs4_secinfo_arg
*args
)
2732 struct compound_hdr hdr
= {
2733 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2736 encode_compound_hdr(xdr
, req
, &hdr
);
2737 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2738 encode_putfh(xdr
, args
->dir_fh
, &hdr
);
2739 encode_secinfo(xdr
, args
->name
, &hdr
);
2744 * Encode FSID_PRESENT request
2746 static void nfs4_xdr_enc_fsid_present(struct rpc_rqst
*req
,
2747 struct xdr_stream
*xdr
,
2748 struct nfs4_fsid_present_arg
*args
)
2750 struct compound_hdr hdr
= {
2751 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2754 encode_compound_hdr(xdr
, req
, &hdr
);
2755 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2756 encode_putfh(xdr
, args
->fh
, &hdr
);
2757 encode_getfh(xdr
, &hdr
);
2759 encode_renew(xdr
, args
->clientid
, &hdr
);
2763 #if defined(CONFIG_NFS_V4_1)
2765 * BIND_CONN_TO_SESSION request
2767 static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst
*req
,
2768 struct xdr_stream
*xdr
,
2769 struct nfs_client
*clp
)
2771 struct compound_hdr hdr
= {
2772 .minorversion
= clp
->cl_mvops
->minor_version
,
2775 encode_compound_hdr(xdr
, req
, &hdr
);
2776 encode_bind_conn_to_session(xdr
, clp
->cl_session
, &hdr
);
2781 * EXCHANGE_ID request
2783 static void nfs4_xdr_enc_exchange_id(struct rpc_rqst
*req
,
2784 struct xdr_stream
*xdr
,
2785 struct nfs41_exchange_id_args
*args
)
2787 struct compound_hdr hdr
= {
2788 .minorversion
= args
->client
->cl_mvops
->minor_version
,
2791 encode_compound_hdr(xdr
, req
, &hdr
);
2792 encode_exchange_id(xdr
, args
, &hdr
);
2797 * a CREATE_SESSION request
2799 static void nfs4_xdr_enc_create_session(struct rpc_rqst
*req
,
2800 struct xdr_stream
*xdr
,
2801 struct nfs41_create_session_args
*args
)
2803 struct compound_hdr hdr
= {
2804 .minorversion
= args
->client
->cl_mvops
->minor_version
,
2807 encode_compound_hdr(xdr
, req
, &hdr
);
2808 encode_create_session(xdr
, args
, &hdr
);
2813 * a DESTROY_SESSION request
2815 static void nfs4_xdr_enc_destroy_session(struct rpc_rqst
*req
,
2816 struct xdr_stream
*xdr
,
2817 struct nfs4_session
*session
)
2819 struct compound_hdr hdr
= {
2820 .minorversion
= session
->clp
->cl_mvops
->minor_version
,
2823 encode_compound_hdr(xdr
, req
, &hdr
);
2824 encode_destroy_session(xdr
, session
, &hdr
);
2829 * a DESTROY_CLIENTID request
2831 static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst
*req
,
2832 struct xdr_stream
*xdr
,
2833 struct nfs_client
*clp
)
2835 struct compound_hdr hdr
= {
2836 .minorversion
= clp
->cl_mvops
->minor_version
,
2839 encode_compound_hdr(xdr
, req
, &hdr
);
2840 encode_destroy_clientid(xdr
, clp
->cl_clientid
, &hdr
);
2845 * a SEQUENCE request
2847 static void nfs4_xdr_enc_sequence(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2848 struct nfs4_sequence_args
*args
)
2850 struct compound_hdr hdr
= {
2851 .minorversion
= nfs4_xdr_minorversion(args
),
2854 encode_compound_hdr(xdr
, req
, &hdr
);
2855 encode_sequence(xdr
, args
, &hdr
);
2860 * a GET_LEASE_TIME request
2862 static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst
*req
,
2863 struct xdr_stream
*xdr
,
2864 struct nfs4_get_lease_time_args
*args
)
2866 struct compound_hdr hdr
= {
2867 .minorversion
= nfs4_xdr_minorversion(&args
->la_seq_args
),
2869 const u32 lease_bitmap
[3] = { FATTR4_WORD0_LEASE_TIME
};
2871 encode_compound_hdr(xdr
, req
, &hdr
);
2872 encode_sequence(xdr
, &args
->la_seq_args
, &hdr
);
2873 encode_putrootfh(xdr
, &hdr
);
2874 encode_fsinfo(xdr
, lease_bitmap
, &hdr
);
2879 * a RECLAIM_COMPLETE request
2881 static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst
*req
,
2882 struct xdr_stream
*xdr
,
2883 struct nfs41_reclaim_complete_args
*args
)
2885 struct compound_hdr hdr
= {
2886 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
)
2889 encode_compound_hdr(xdr
, req
, &hdr
);
2890 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2891 encode_reclaim_complete(xdr
, args
, &hdr
);
2896 * Encode GETDEVICELIST request
2898 static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst
*req
,
2899 struct xdr_stream
*xdr
,
2900 struct nfs4_getdevicelist_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
, args
->fh
, &hdr
);
2909 encode_getdevicelist(xdr
, args
, &hdr
);
2914 * Encode GETDEVICEINFO request
2916 static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst
*req
,
2917 struct xdr_stream
*xdr
,
2918 struct nfs4_getdeviceinfo_args
*args
)
2920 struct compound_hdr hdr
= {
2921 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2924 encode_compound_hdr(xdr
, req
, &hdr
);
2925 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2926 encode_getdeviceinfo(xdr
, args
, &hdr
);
2928 /* set up reply kvec. Subtract notification bitmap max size (2)
2929 * so that notification bitmap is put in xdr_buf tail */
2930 xdr_inline_pages(&req
->rq_rcv_buf
, (hdr
.replen
- 2) << 2,
2931 args
->pdev
->pages
, args
->pdev
->pgbase
,
2938 * Encode LAYOUTGET request
2940 static void nfs4_xdr_enc_layoutget(struct rpc_rqst
*req
,
2941 struct xdr_stream
*xdr
,
2942 struct nfs4_layoutget_args
*args
)
2944 struct compound_hdr hdr
= {
2945 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2948 encode_compound_hdr(xdr
, req
, &hdr
);
2949 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2950 encode_putfh(xdr
, NFS_FH(args
->inode
), &hdr
);
2951 encode_layoutget(xdr
, args
, &hdr
);
2953 xdr_inline_pages(&req
->rq_rcv_buf
, hdr
.replen
<< 2,
2954 args
->layout
.pages
, 0, args
->layout
.pglen
);
2960 * Encode LAYOUTCOMMIT request
2962 static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst
*req
,
2963 struct xdr_stream
*xdr
,
2964 struct nfs4_layoutcommit_args
*args
)
2966 struct nfs4_layoutcommit_data
*data
=
2967 container_of(args
, struct nfs4_layoutcommit_data
, args
);
2968 struct compound_hdr hdr
= {
2969 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2972 encode_compound_hdr(xdr
, req
, &hdr
);
2973 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2974 encode_putfh(xdr
, NFS_FH(args
->inode
), &hdr
);
2975 encode_layoutcommit(xdr
, data
->args
.inode
, args
, &hdr
);
2976 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2981 * Encode LAYOUTRETURN request
2983 static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst
*req
,
2984 struct xdr_stream
*xdr
,
2985 struct nfs4_layoutreturn_args
*args
)
2987 struct compound_hdr hdr
= {
2988 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2991 encode_compound_hdr(xdr
, req
, &hdr
);
2992 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2993 encode_putfh(xdr
, NFS_FH(args
->inode
), &hdr
);
2994 encode_layoutreturn(xdr
, args
, &hdr
);
2999 * Encode SECINFO_NO_NAME request
3001 static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst
*req
,
3002 struct xdr_stream
*xdr
,
3003 struct nfs41_secinfo_no_name_args
*args
)
3005 struct compound_hdr hdr
= {
3006 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
3009 encode_compound_hdr(xdr
, req
, &hdr
);
3010 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
3011 encode_putrootfh(xdr
, &hdr
);
3012 encode_secinfo_no_name(xdr
, args
, &hdr
);
3018 * Encode TEST_STATEID request
3020 static void nfs4_xdr_enc_test_stateid(struct rpc_rqst
*req
,
3021 struct xdr_stream
*xdr
,
3022 struct nfs41_test_stateid_args
*args
)
3024 struct compound_hdr hdr
= {
3025 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
3028 encode_compound_hdr(xdr
, req
, &hdr
);
3029 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
3030 encode_test_stateid(xdr
, args
, &hdr
);
3035 * Encode FREE_STATEID request
3037 static void nfs4_xdr_enc_free_stateid(struct rpc_rqst
*req
,
3038 struct xdr_stream
*xdr
,
3039 struct nfs41_free_stateid_args
*args
)
3041 struct compound_hdr hdr
= {
3042 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
3045 encode_compound_hdr(xdr
, req
, &hdr
);
3046 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
3047 encode_free_stateid(xdr
, args
, &hdr
);
3050 #endif /* CONFIG_NFS_V4_1 */
3052 static void print_overflow_msg(const char *func
, const struct xdr_stream
*xdr
)
3054 dprintk("nfs: %s: prematurely hit end of receive buffer. "
3055 "Remaining buffer length is %tu words.\n",
3056 func
, xdr
->end
- xdr
->p
);
3059 static int decode_opaque_inline(struct xdr_stream
*xdr
, unsigned int *len
, char **string
)
3063 p
= xdr_inline_decode(xdr
, 4);
3066 *len
= be32_to_cpup(p
);
3067 p
= xdr_inline_decode(xdr
, *len
);
3070 *string
= (char *)p
;
3073 print_overflow_msg(__func__
, xdr
);
3077 static int decode_compound_hdr(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
3081 p
= xdr_inline_decode(xdr
, 8);
3084 hdr
->status
= be32_to_cpup(p
++);
3085 hdr
->taglen
= be32_to_cpup(p
);
3087 p
= xdr_inline_decode(xdr
, hdr
->taglen
+ 4);
3090 hdr
->tag
= (char *)p
;
3091 p
+= XDR_QUADLEN(hdr
->taglen
);
3092 hdr
->nops
= be32_to_cpup(p
);
3093 if (unlikely(hdr
->nops
< 1))
3094 return nfs4_stat_to_errno(hdr
->status
);
3097 print_overflow_msg(__func__
, xdr
);
3101 static bool __decode_op_hdr(struct xdr_stream
*xdr
, enum nfs_opnum4 expected
,
3108 p
= xdr_inline_decode(xdr
, 8);
3111 opnum
= be32_to_cpup(p
++);
3112 if (unlikely(opnum
!= expected
))
3113 goto out_bad_operation
;
3114 nfserr
= be32_to_cpup(p
);
3115 if (nfserr
== NFS_OK
)
3118 *nfs_retval
= nfs4_stat_to_errno(nfserr
);
3121 dprintk("nfs: Server returned operation"
3122 " %d but we issued a request for %d\n",
3124 *nfs_retval
= -EREMOTEIO
;
3127 print_overflow_msg(__func__
, xdr
);
3132 static int decode_op_hdr(struct xdr_stream
*xdr
, enum nfs_opnum4 expected
)
3136 __decode_op_hdr(xdr
, expected
, &retval
);
3141 static int decode_ace(struct xdr_stream
*xdr
, void *ace
, struct nfs_client
*clp
)
3144 unsigned int strlen
;
3147 p
= xdr_inline_decode(xdr
, 12);
3149 return decode_opaque_inline(xdr
, &strlen
, &str
);
3150 print_overflow_msg(__func__
, xdr
);
3154 static int decode_attr_bitmap(struct xdr_stream
*xdr
, uint32_t *bitmap
)
3159 p
= xdr_inline_decode(xdr
, 4);
3162 bmlen
= be32_to_cpup(p
);
3164 bitmap
[0] = bitmap
[1] = bitmap
[2] = 0;
3165 p
= xdr_inline_decode(xdr
, (bmlen
<< 2));
3169 bitmap
[0] = be32_to_cpup(p
++);
3171 bitmap
[1] = be32_to_cpup(p
++);
3173 bitmap
[2] = be32_to_cpup(p
);
3178 print_overflow_msg(__func__
, xdr
);
3182 static int decode_attr_length(struct xdr_stream
*xdr
, uint32_t *attrlen
, unsigned int *savep
)
3186 p
= xdr_inline_decode(xdr
, 4);
3189 *attrlen
= be32_to_cpup(p
);
3190 *savep
= xdr_stream_pos(xdr
);
3193 print_overflow_msg(__func__
, xdr
);
3197 static int decode_attr_supported(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *bitmask
)
3199 if (likely(bitmap
[0] & FATTR4_WORD0_SUPPORTED_ATTRS
)) {
3201 ret
= decode_attr_bitmap(xdr
, bitmask
);
3202 if (unlikely(ret
< 0))
3204 bitmap
[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS
;
3206 bitmask
[0] = bitmask
[1] = bitmask
[2] = 0;
3207 dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__
,
3208 bitmask
[0], bitmask
[1], bitmask
[2]);
3212 static int decode_attr_type(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *type
)
3218 if (unlikely(bitmap
[0] & (FATTR4_WORD0_TYPE
- 1U)))
3220 if (likely(bitmap
[0] & FATTR4_WORD0_TYPE
)) {
3221 p
= xdr_inline_decode(xdr
, 4);
3224 *type
= be32_to_cpup(p
);
3225 if (*type
< NF4REG
|| *type
> NF4NAMEDATTR
) {
3226 dprintk("%s: bad type %d\n", __func__
, *type
);
3229 bitmap
[0] &= ~FATTR4_WORD0_TYPE
;
3230 ret
= NFS_ATTR_FATTR_TYPE
;
3232 dprintk("%s: type=0%o\n", __func__
, nfs_type2fmt
[*type
]);
3235 print_overflow_msg(__func__
, xdr
);
3239 static int decode_attr_fh_expire_type(struct xdr_stream
*xdr
,
3240 uint32_t *bitmap
, uint32_t *type
)
3245 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE
- 1U)))
3247 if (likely(bitmap
[0] & FATTR4_WORD0_FH_EXPIRE_TYPE
)) {
3248 p
= xdr_inline_decode(xdr
, 4);
3251 *type
= be32_to_cpup(p
);
3252 bitmap
[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE
;
3254 dprintk("%s: expire type=0x%x\n", __func__
, *type
);
3257 print_overflow_msg(__func__
, xdr
);
3261 static int decode_attr_change(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *change
)
3267 if (unlikely(bitmap
[0] & (FATTR4_WORD0_CHANGE
- 1U)))
3269 if (likely(bitmap
[0] & FATTR4_WORD0_CHANGE
)) {
3270 p
= xdr_inline_decode(xdr
, 8);
3273 xdr_decode_hyper(p
, change
);
3274 bitmap
[0] &= ~FATTR4_WORD0_CHANGE
;
3275 ret
= NFS_ATTR_FATTR_CHANGE
;
3277 dprintk("%s: change attribute=%Lu\n", __func__
,
3278 (unsigned long long)*change
);
3281 print_overflow_msg(__func__
, xdr
);
3285 static int decode_attr_size(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *size
)
3291 if (unlikely(bitmap
[0] & (FATTR4_WORD0_SIZE
- 1U)))
3293 if (likely(bitmap
[0] & FATTR4_WORD0_SIZE
)) {
3294 p
= xdr_inline_decode(xdr
, 8);
3297 xdr_decode_hyper(p
, size
);
3298 bitmap
[0] &= ~FATTR4_WORD0_SIZE
;
3299 ret
= NFS_ATTR_FATTR_SIZE
;
3301 dprintk("%s: file size=%Lu\n", __func__
, (unsigned long long)*size
);
3304 print_overflow_msg(__func__
, xdr
);
3308 static int decode_attr_link_support(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3313 if (unlikely(bitmap
[0] & (FATTR4_WORD0_LINK_SUPPORT
- 1U)))
3315 if (likely(bitmap
[0] & FATTR4_WORD0_LINK_SUPPORT
)) {
3316 p
= xdr_inline_decode(xdr
, 4);
3319 *res
= be32_to_cpup(p
);
3320 bitmap
[0] &= ~FATTR4_WORD0_LINK_SUPPORT
;
3322 dprintk("%s: link support=%s\n", __func__
, *res
== 0 ? "false" : "true");
3325 print_overflow_msg(__func__
, xdr
);
3329 static int decode_attr_symlink_support(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3334 if (unlikely(bitmap
[0] & (FATTR4_WORD0_SYMLINK_SUPPORT
- 1U)))
3336 if (likely(bitmap
[0] & FATTR4_WORD0_SYMLINK_SUPPORT
)) {
3337 p
= xdr_inline_decode(xdr
, 4);
3340 *res
= be32_to_cpup(p
);
3341 bitmap
[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT
;
3343 dprintk("%s: symlink support=%s\n", __func__
, *res
== 0 ? "false" : "true");
3346 print_overflow_msg(__func__
, xdr
);
3350 static int decode_attr_fsid(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct nfs_fsid
*fsid
)
3357 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FSID
- 1U)))
3359 if (likely(bitmap
[0] & FATTR4_WORD0_FSID
)) {
3360 p
= xdr_inline_decode(xdr
, 16);
3363 p
= xdr_decode_hyper(p
, &fsid
->major
);
3364 xdr_decode_hyper(p
, &fsid
->minor
);
3365 bitmap
[0] &= ~FATTR4_WORD0_FSID
;
3366 ret
= NFS_ATTR_FATTR_FSID
;
3368 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__
,
3369 (unsigned long long)fsid
->major
,
3370 (unsigned long long)fsid
->minor
);
3373 print_overflow_msg(__func__
, xdr
);
3377 static int decode_attr_lease_time(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3382 if (unlikely(bitmap
[0] & (FATTR4_WORD0_LEASE_TIME
- 1U)))
3384 if (likely(bitmap
[0] & FATTR4_WORD0_LEASE_TIME
)) {
3385 p
= xdr_inline_decode(xdr
, 4);
3388 *res
= be32_to_cpup(p
);
3389 bitmap
[0] &= ~FATTR4_WORD0_LEASE_TIME
;
3391 dprintk("%s: file size=%u\n", __func__
, (unsigned int)*res
);
3394 print_overflow_msg(__func__
, xdr
);
3398 static int decode_attr_error(struct xdr_stream
*xdr
, uint32_t *bitmap
, int32_t *res
)
3402 if (unlikely(bitmap
[0] & (FATTR4_WORD0_RDATTR_ERROR
- 1U)))
3404 if (likely(bitmap
[0] & FATTR4_WORD0_RDATTR_ERROR
)) {
3405 p
= xdr_inline_decode(xdr
, 4);
3408 bitmap
[0] &= ~FATTR4_WORD0_RDATTR_ERROR
;
3409 *res
= -be32_to_cpup(p
);
3413 print_overflow_msg(__func__
, xdr
);
3417 static int decode_attr_filehandle(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct nfs_fh
*fh
)
3423 memset(fh
, 0, sizeof(*fh
));
3425 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILEHANDLE
- 1U)))
3427 if (likely(bitmap
[0] & FATTR4_WORD0_FILEHANDLE
)) {
3428 p
= xdr_inline_decode(xdr
, 4);
3431 len
= be32_to_cpup(p
);
3432 if (len
> NFS4_FHSIZE
)
3434 p
= xdr_inline_decode(xdr
, len
);
3438 memcpy(fh
->data
, p
, len
);
3441 bitmap
[0] &= ~FATTR4_WORD0_FILEHANDLE
;
3445 print_overflow_msg(__func__
, xdr
);
3449 static int decode_attr_aclsupport(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3454 if (unlikely(bitmap
[0] & (FATTR4_WORD0_ACLSUPPORT
- 1U)))
3456 if (likely(bitmap
[0] & FATTR4_WORD0_ACLSUPPORT
)) {
3457 p
= xdr_inline_decode(xdr
, 4);
3460 *res
= be32_to_cpup(p
);
3461 bitmap
[0] &= ~FATTR4_WORD0_ACLSUPPORT
;
3463 dprintk("%s: ACLs supported=%u\n", __func__
, (unsigned int)*res
);
3466 print_overflow_msg(__func__
, xdr
);
3470 static int decode_attr_fileid(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *fileid
)
3476 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILEID
- 1U)))
3478 if (likely(bitmap
[0] & FATTR4_WORD0_FILEID
)) {
3479 p
= xdr_inline_decode(xdr
, 8);
3482 xdr_decode_hyper(p
, fileid
);
3483 bitmap
[0] &= ~FATTR4_WORD0_FILEID
;
3484 ret
= NFS_ATTR_FATTR_FILEID
;
3486 dprintk("%s: fileid=%Lu\n", __func__
, (unsigned long long)*fileid
);
3489 print_overflow_msg(__func__
, xdr
);
3493 static int decode_attr_mounted_on_fileid(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *fileid
)
3499 if (unlikely(bitmap
[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID
- 1U)))
3501 if (likely(bitmap
[1] & FATTR4_WORD1_MOUNTED_ON_FILEID
)) {
3502 p
= xdr_inline_decode(xdr
, 8);
3505 xdr_decode_hyper(p
, fileid
);
3506 bitmap
[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID
;
3507 ret
= NFS_ATTR_FATTR_MOUNTED_ON_FILEID
;
3509 dprintk("%s: fileid=%Lu\n", __func__
, (unsigned long long)*fileid
);
3512 print_overflow_msg(__func__
, xdr
);
3516 static int decode_attr_files_avail(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3522 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_AVAIL
- 1U)))
3524 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_AVAIL
)) {
3525 p
= xdr_inline_decode(xdr
, 8);
3528 xdr_decode_hyper(p
, res
);
3529 bitmap
[0] &= ~FATTR4_WORD0_FILES_AVAIL
;
3531 dprintk("%s: files avail=%Lu\n", __func__
, (unsigned long long)*res
);
3534 print_overflow_msg(__func__
, xdr
);
3538 static int decode_attr_files_free(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3544 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_FREE
- 1U)))
3546 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_FREE
)) {
3547 p
= xdr_inline_decode(xdr
, 8);
3550 xdr_decode_hyper(p
, res
);
3551 bitmap
[0] &= ~FATTR4_WORD0_FILES_FREE
;
3553 dprintk("%s: files free=%Lu\n", __func__
, (unsigned long long)*res
);
3556 print_overflow_msg(__func__
, xdr
);
3560 static int decode_attr_files_total(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3566 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_TOTAL
- 1U)))
3568 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_TOTAL
)) {
3569 p
= xdr_inline_decode(xdr
, 8);
3572 xdr_decode_hyper(p
, res
);
3573 bitmap
[0] &= ~FATTR4_WORD0_FILES_TOTAL
;
3575 dprintk("%s: files total=%Lu\n", __func__
, (unsigned long long)*res
);
3578 print_overflow_msg(__func__
, xdr
);
3582 static int decode_pathname(struct xdr_stream
*xdr
, struct nfs4_pathname
*path
)
3588 p
= xdr_inline_decode(xdr
, 4);
3591 n
= be32_to_cpup(p
);
3594 dprintk("pathname4: ");
3595 if (n
> NFS4_PATHNAME_MAXCOMPONENTS
) {
3596 dprintk("cannot parse %d components in path\n", n
);
3599 for (path
->ncomponents
= 0; path
->ncomponents
< n
; path
->ncomponents
++) {
3600 struct nfs4_string
*component
= &path
->components
[path
->ncomponents
];
3601 status
= decode_opaque_inline(xdr
, &component
->len
, &component
->data
);
3602 if (unlikely(status
!= 0))
3606 (path
->ncomponents
!= n
? "/ " : ""),
3607 component
->len
, component
->data
);
3612 /* a root pathname is sent as a zero component4 */
3613 path
->ncomponents
= 1;
3614 path
->components
[0].len
=0;
3615 path
->components
[0].data
=NULL
;
3616 dprintk("pathname4: /\n");
3619 dprintk(" status %d", status
);
3623 print_overflow_msg(__func__
, xdr
);
3627 static int decode_attr_fs_locations(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct nfs4_fs_locations
*res
)
3633 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FS_LOCATIONS
-1U)))
3636 if (unlikely(!(bitmap
[0] & FATTR4_WORD0_FS_LOCATIONS
)))
3639 /* Ignore borken servers that return unrequested attrs */
3640 if (unlikely(res
== NULL
))
3642 dprintk("%s: fsroot:\n", __func__
);
3643 status
= decode_pathname(xdr
, &res
->fs_path
);
3644 if (unlikely(status
!= 0))
3646 p
= xdr_inline_decode(xdr
, 4);
3649 n
= be32_to_cpup(p
);
3652 for (res
->nlocations
= 0; res
->nlocations
< n
; res
->nlocations
++) {
3654 struct nfs4_fs_location
*loc
;
3656 if (res
->nlocations
== NFS4_FS_LOCATIONS_MAXENTRIES
)
3658 loc
= &res
->locations
[res
->nlocations
];
3659 p
= xdr_inline_decode(xdr
, 4);
3662 m
= be32_to_cpup(p
);
3664 dprintk("%s: servers:\n", __func__
);
3665 for (loc
->nservers
= 0; loc
->nservers
< m
; loc
->nservers
++) {
3666 struct nfs4_string
*server
;
3668 if (loc
->nservers
== NFS4_FS_LOCATION_MAXSERVERS
) {
3670 dprintk("%s: using first %u of %u servers "
3671 "returned for location %u\n",
3673 NFS4_FS_LOCATION_MAXSERVERS
,
3674 m
, res
->nlocations
);
3675 for (i
= loc
->nservers
; i
< m
; i
++) {
3678 status
= decode_opaque_inline(xdr
, &len
, &data
);
3679 if (unlikely(status
!= 0))
3684 server
= &loc
->servers
[loc
->nservers
];
3685 status
= decode_opaque_inline(xdr
, &server
->len
, &server
->data
);
3686 if (unlikely(status
!= 0))
3688 dprintk("%s ", server
->data
);
3690 status
= decode_pathname(xdr
, &loc
->rootpath
);
3691 if (unlikely(status
!= 0))
3694 if (res
->nlocations
!= 0)
3695 status
= NFS_ATTR_FATTR_V4_LOCATIONS
;
3697 dprintk("%s: fs_locations done, error = %d\n", __func__
, status
);
3700 print_overflow_msg(__func__
, xdr
);
3706 static int decode_attr_maxfilesize(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3712 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXFILESIZE
- 1U)))
3714 if (likely(bitmap
[0] & FATTR4_WORD0_MAXFILESIZE
)) {
3715 p
= xdr_inline_decode(xdr
, 8);
3718 xdr_decode_hyper(p
, res
);
3719 bitmap
[0] &= ~FATTR4_WORD0_MAXFILESIZE
;
3721 dprintk("%s: maxfilesize=%Lu\n", __func__
, (unsigned long long)*res
);
3724 print_overflow_msg(__func__
, xdr
);
3728 static int decode_attr_maxlink(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *maxlink
)
3734 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXLINK
- 1U)))
3736 if (likely(bitmap
[0] & FATTR4_WORD0_MAXLINK
)) {
3737 p
= xdr_inline_decode(xdr
, 4);
3740 *maxlink
= be32_to_cpup(p
);
3741 bitmap
[0] &= ~FATTR4_WORD0_MAXLINK
;
3743 dprintk("%s: maxlink=%u\n", __func__
, *maxlink
);
3746 print_overflow_msg(__func__
, xdr
);
3750 static int decode_attr_maxname(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *maxname
)
3756 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXNAME
- 1U)))
3758 if (likely(bitmap
[0] & FATTR4_WORD0_MAXNAME
)) {
3759 p
= xdr_inline_decode(xdr
, 4);
3762 *maxname
= be32_to_cpup(p
);
3763 bitmap
[0] &= ~FATTR4_WORD0_MAXNAME
;
3765 dprintk("%s: maxname=%u\n", __func__
, *maxname
);
3768 print_overflow_msg(__func__
, xdr
);
3772 static int decode_attr_maxread(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3778 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXREAD
- 1U)))
3780 if (likely(bitmap
[0] & FATTR4_WORD0_MAXREAD
)) {
3782 p
= xdr_inline_decode(xdr
, 8);
3785 xdr_decode_hyper(p
, &maxread
);
3786 if (maxread
> 0x7FFFFFFF)
3787 maxread
= 0x7FFFFFFF;
3788 *res
= (uint32_t)maxread
;
3789 bitmap
[0] &= ~FATTR4_WORD0_MAXREAD
;
3791 dprintk("%s: maxread=%lu\n", __func__
, (unsigned long)*res
);
3794 print_overflow_msg(__func__
, xdr
);
3798 static int decode_attr_maxwrite(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3804 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXWRITE
- 1U)))
3806 if (likely(bitmap
[0] & FATTR4_WORD0_MAXWRITE
)) {
3808 p
= xdr_inline_decode(xdr
, 8);
3811 xdr_decode_hyper(p
, &maxwrite
);
3812 if (maxwrite
> 0x7FFFFFFF)
3813 maxwrite
= 0x7FFFFFFF;
3814 *res
= (uint32_t)maxwrite
;
3815 bitmap
[0] &= ~FATTR4_WORD0_MAXWRITE
;
3817 dprintk("%s: maxwrite=%lu\n", __func__
, (unsigned long)*res
);
3820 print_overflow_msg(__func__
, xdr
);
3824 static int decode_attr_mode(struct xdr_stream
*xdr
, uint32_t *bitmap
, umode_t
*mode
)
3831 if (unlikely(bitmap
[1] & (FATTR4_WORD1_MODE
- 1U)))
3833 if (likely(bitmap
[1] & FATTR4_WORD1_MODE
)) {
3834 p
= xdr_inline_decode(xdr
, 4);
3837 tmp
= be32_to_cpup(p
);
3838 *mode
= tmp
& ~S_IFMT
;
3839 bitmap
[1] &= ~FATTR4_WORD1_MODE
;
3840 ret
= NFS_ATTR_FATTR_MODE
;
3842 dprintk("%s: file mode=0%o\n", __func__
, (unsigned int)*mode
);
3845 print_overflow_msg(__func__
, xdr
);
3849 static int decode_attr_nlink(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *nlink
)
3855 if (unlikely(bitmap
[1] & (FATTR4_WORD1_NUMLINKS
- 1U)))
3857 if (likely(bitmap
[1] & FATTR4_WORD1_NUMLINKS
)) {
3858 p
= xdr_inline_decode(xdr
, 4);
3861 *nlink
= be32_to_cpup(p
);
3862 bitmap
[1] &= ~FATTR4_WORD1_NUMLINKS
;
3863 ret
= NFS_ATTR_FATTR_NLINK
;
3865 dprintk("%s: nlink=%u\n", __func__
, (unsigned int)*nlink
);
3868 print_overflow_msg(__func__
, xdr
);
3872 static int decode_attr_owner(struct xdr_stream
*xdr
, uint32_t *bitmap
,
3873 const struct nfs_server
*server
, kuid_t
*uid
,
3874 struct nfs4_string
*owner_name
)
3880 *uid
= make_kuid(&init_user_ns
, -2);
3881 if (unlikely(bitmap
[1] & (FATTR4_WORD1_OWNER
- 1U)))
3883 if (likely(bitmap
[1] & FATTR4_WORD1_OWNER
)) {
3884 p
= xdr_inline_decode(xdr
, 4);
3887 len
= be32_to_cpup(p
);
3888 p
= xdr_inline_decode(xdr
, len
);
3891 if (owner_name
!= NULL
) {
3892 owner_name
->data
= kmemdup(p
, len
, GFP_NOWAIT
);
3893 if (owner_name
->data
!= NULL
) {
3894 owner_name
->len
= len
;
3895 ret
= NFS_ATTR_FATTR_OWNER_NAME
;
3897 } else if (len
< XDR_MAX_NETOBJ
) {
3898 if (nfs_map_name_to_uid(server
, (char *)p
, len
, uid
) == 0)
3899 ret
= NFS_ATTR_FATTR_OWNER
;
3901 dprintk("%s: nfs_map_name_to_uid failed!\n",
3904 dprintk("%s: name too long (%u)!\n",
3906 bitmap
[1] &= ~FATTR4_WORD1_OWNER
;
3908 dprintk("%s: uid=%d\n", __func__
, (int)from_kuid(&init_user_ns
, *uid
));
3911 print_overflow_msg(__func__
, xdr
);
3915 static int decode_attr_group(struct xdr_stream
*xdr
, uint32_t *bitmap
,
3916 const struct nfs_server
*server
, kgid_t
*gid
,
3917 struct nfs4_string
*group_name
)
3923 *gid
= make_kgid(&init_user_ns
, -2);
3924 if (unlikely(bitmap
[1] & (FATTR4_WORD1_OWNER_GROUP
- 1U)))
3926 if (likely(bitmap
[1] & FATTR4_WORD1_OWNER_GROUP
)) {
3927 p
= xdr_inline_decode(xdr
, 4);
3930 len
= be32_to_cpup(p
);
3931 p
= xdr_inline_decode(xdr
, len
);
3934 if (group_name
!= NULL
) {
3935 group_name
->data
= kmemdup(p
, len
, GFP_NOWAIT
);
3936 if (group_name
->data
!= NULL
) {
3937 group_name
->len
= len
;
3938 ret
= NFS_ATTR_FATTR_GROUP_NAME
;
3940 } else if (len
< XDR_MAX_NETOBJ
) {
3941 if (nfs_map_group_to_gid(server
, (char *)p
, len
, gid
) == 0)
3942 ret
= NFS_ATTR_FATTR_GROUP
;
3944 dprintk("%s: nfs_map_group_to_gid failed!\n",
3947 dprintk("%s: name too long (%u)!\n",
3949 bitmap
[1] &= ~FATTR4_WORD1_OWNER_GROUP
;
3951 dprintk("%s: gid=%d\n", __func__
, (int)from_kgid(&init_user_ns
, *gid
));
3954 print_overflow_msg(__func__
, xdr
);
3958 static int decode_attr_rdev(struct xdr_stream
*xdr
, uint32_t *bitmap
, dev_t
*rdev
)
3960 uint32_t major
= 0, minor
= 0;
3965 if (unlikely(bitmap
[1] & (FATTR4_WORD1_RAWDEV
- 1U)))
3967 if (likely(bitmap
[1] & FATTR4_WORD1_RAWDEV
)) {
3970 p
= xdr_inline_decode(xdr
, 8);
3973 major
= be32_to_cpup(p
++);
3974 minor
= be32_to_cpup(p
);
3975 tmp
= MKDEV(major
, minor
);
3976 if (MAJOR(tmp
) == major
&& MINOR(tmp
) == minor
)
3978 bitmap
[1] &= ~ FATTR4_WORD1_RAWDEV
;
3979 ret
= NFS_ATTR_FATTR_RDEV
;
3981 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__
, major
, minor
);
3984 print_overflow_msg(__func__
, xdr
);
3988 static int decode_attr_space_avail(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3994 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_AVAIL
- 1U)))
3996 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_AVAIL
)) {
3997 p
= xdr_inline_decode(xdr
, 8);
4000 xdr_decode_hyper(p
, res
);
4001 bitmap
[1] &= ~FATTR4_WORD1_SPACE_AVAIL
;
4003 dprintk("%s: space avail=%Lu\n", __func__
, (unsigned long long)*res
);
4006 print_overflow_msg(__func__
, xdr
);
4010 static int decode_attr_space_free(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
4016 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_FREE
- 1U)))
4018 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_FREE
)) {
4019 p
= xdr_inline_decode(xdr
, 8);
4022 xdr_decode_hyper(p
, res
);
4023 bitmap
[1] &= ~FATTR4_WORD1_SPACE_FREE
;
4025 dprintk("%s: space free=%Lu\n", __func__
, (unsigned long long)*res
);
4028 print_overflow_msg(__func__
, xdr
);
4032 static int decode_attr_space_total(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
4038 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_TOTAL
- 1U)))
4040 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_TOTAL
)) {
4041 p
= xdr_inline_decode(xdr
, 8);
4044 xdr_decode_hyper(p
, res
);
4045 bitmap
[1] &= ~FATTR4_WORD1_SPACE_TOTAL
;
4047 dprintk("%s: space total=%Lu\n", __func__
, (unsigned long long)*res
);
4050 print_overflow_msg(__func__
, xdr
);
4054 static int decode_attr_space_used(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *used
)
4060 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_USED
- 1U)))
4062 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_USED
)) {
4063 p
= xdr_inline_decode(xdr
, 8);
4066 xdr_decode_hyper(p
, used
);
4067 bitmap
[1] &= ~FATTR4_WORD1_SPACE_USED
;
4068 ret
= NFS_ATTR_FATTR_SPACE_USED
;
4070 dprintk("%s: space used=%Lu\n", __func__
,
4071 (unsigned long long)*used
);
4074 print_overflow_msg(__func__
, xdr
);
4078 static int decode_attr_time(struct xdr_stream
*xdr
, struct timespec
*time
)
4084 p
= xdr_inline_decode(xdr
, 12);
4087 p
= xdr_decode_hyper(p
, &sec
);
4088 nsec
= be32_to_cpup(p
);
4089 time
->tv_sec
= (time_t)sec
;
4090 time
->tv_nsec
= (long)nsec
;
4093 print_overflow_msg(__func__
, xdr
);
4097 static int decode_attr_time_access(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec
*time
)
4103 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_ACCESS
- 1U)))
4105 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_ACCESS
)) {
4106 status
= decode_attr_time(xdr
, time
);
4108 status
= NFS_ATTR_FATTR_ATIME
;
4109 bitmap
[1] &= ~FATTR4_WORD1_TIME_ACCESS
;
4111 dprintk("%s: atime=%ld\n", __func__
, (long)time
->tv_sec
);
4115 static int decode_attr_time_metadata(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec
*time
)
4121 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_METADATA
- 1U)))
4123 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_METADATA
)) {
4124 status
= decode_attr_time(xdr
, time
);
4126 status
= NFS_ATTR_FATTR_CTIME
;
4127 bitmap
[1] &= ~FATTR4_WORD1_TIME_METADATA
;
4129 dprintk("%s: ctime=%ld\n", __func__
, (long)time
->tv_sec
);
4133 static int decode_attr_time_delta(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4134 struct timespec
*time
)
4140 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_DELTA
- 1U)))
4142 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_DELTA
)) {
4143 status
= decode_attr_time(xdr
, time
);
4144 bitmap
[1] &= ~FATTR4_WORD1_TIME_DELTA
;
4146 dprintk("%s: time_delta=%ld %ld\n", __func__
, (long)time
->tv_sec
,
4147 (long)time
->tv_nsec
);
4151 static int decode_attr_security_label(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4152 struct nfs4_label
*label
)
4160 if (unlikely(bitmap
[2] & (FATTR4_WORD2_SECURITY_LABEL
- 1U)))
4162 if (likely(bitmap
[2] & FATTR4_WORD2_SECURITY_LABEL
)) {
4163 p
= xdr_inline_decode(xdr
, 4);
4166 lfs
= be32_to_cpup(p
++);
4167 p
= xdr_inline_decode(xdr
, 4);
4170 pi
= be32_to_cpup(p
++);
4171 p
= xdr_inline_decode(xdr
, 4);
4174 len
= be32_to_cpup(p
++);
4175 p
= xdr_inline_decode(xdr
, len
);
4178 if (len
< NFS4_MAXLABELLEN
) {
4180 memcpy(label
->label
, p
, len
);
4184 status
= NFS_ATTR_FATTR_V4_SECURITY_LABEL
;
4186 bitmap
[2] &= ~FATTR4_WORD2_SECURITY_LABEL
;
4188 printk(KERN_WARNING
"%s: label too long (%u)!\n",
4191 if (label
&& label
->label
)
4192 dprintk("%s: label=%s, len=%d, PI=%d, LFS=%d\n", __func__
,
4193 (char *)label
->label
, label
->len
, label
->pi
, label
->lfs
);
4197 print_overflow_msg(__func__
, xdr
);
4201 static int decode_attr_time_modify(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec
*time
)
4207 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_MODIFY
- 1U)))
4209 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_MODIFY
)) {
4210 status
= decode_attr_time(xdr
, time
);
4212 status
= NFS_ATTR_FATTR_MTIME
;
4213 bitmap
[1] &= ~FATTR4_WORD1_TIME_MODIFY
;
4215 dprintk("%s: mtime=%ld\n", __func__
, (long)time
->tv_sec
);
4219 static int verify_attr_len(struct xdr_stream
*xdr
, unsigned int savep
, uint32_t attrlen
)
4221 unsigned int attrwords
= XDR_QUADLEN(attrlen
);
4222 unsigned int nwords
= (xdr_stream_pos(xdr
) - savep
) >> 2;
4224 if (unlikely(attrwords
!= nwords
)) {
4225 dprintk("%s: server returned incorrect attribute length: "
4229 (attrwords
< nwords
) ? '<' : '>',
4236 static int decode_change_info(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
4240 p
= xdr_inline_decode(xdr
, 20);
4243 cinfo
->atomic
= be32_to_cpup(p
++);
4244 p
= xdr_decode_hyper(p
, &cinfo
->before
);
4245 xdr_decode_hyper(p
, &cinfo
->after
);
4248 print_overflow_msg(__func__
, xdr
);
4252 static int decode_access(struct xdr_stream
*xdr
, u32
*supported
, u32
*access
)
4258 status
= decode_op_hdr(xdr
, OP_ACCESS
);
4261 p
= xdr_inline_decode(xdr
, 8);
4264 supp
= be32_to_cpup(p
++);
4265 acc
= be32_to_cpup(p
);
4270 print_overflow_msg(__func__
, xdr
);
4274 static int decode_opaque_fixed(struct xdr_stream
*xdr
, void *buf
, size_t len
)
4278 p
= xdr_inline_decode(xdr
, len
);
4280 memcpy(buf
, p
, len
);
4283 print_overflow_msg(__func__
, xdr
);
4287 static int decode_stateid(struct xdr_stream
*xdr
, nfs4_stateid
*stateid
)
4289 return decode_opaque_fixed(xdr
, stateid
, NFS4_STATEID_SIZE
);
4292 static int decode_close(struct xdr_stream
*xdr
, struct nfs_closeres
*res
)
4296 status
= decode_op_hdr(xdr
, OP_CLOSE
);
4298 nfs_increment_open_seqid(status
, res
->seqid
);
4300 status
= decode_stateid(xdr
, &res
->stateid
);
4304 static int decode_verifier(struct xdr_stream
*xdr
, void *verifier
)
4306 return decode_opaque_fixed(xdr
, verifier
, NFS4_VERIFIER_SIZE
);
4309 static int decode_write_verifier(struct xdr_stream
*xdr
, struct nfs_write_verifier
*verifier
)
4311 return decode_opaque_fixed(xdr
, verifier
->data
, NFS4_VERIFIER_SIZE
);
4314 static int decode_commit(struct xdr_stream
*xdr
, struct nfs_commitres
*res
)
4318 status
= decode_op_hdr(xdr
, OP_COMMIT
);
4320 status
= decode_write_verifier(xdr
, &res
->verf
->verifier
);
4324 static int decode_create(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
4330 status
= decode_op_hdr(xdr
, OP_CREATE
);
4333 if ((status
= decode_change_info(xdr
, cinfo
)))
4335 p
= xdr_inline_decode(xdr
, 4);
4338 bmlen
= be32_to_cpup(p
);
4339 p
= xdr_inline_decode(xdr
, bmlen
<< 2);
4343 print_overflow_msg(__func__
, xdr
);
4347 static int decode_server_caps(struct xdr_stream
*xdr
, struct nfs4_server_caps_res
*res
)
4350 uint32_t attrlen
, bitmap
[3] = {0};
4353 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
4355 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
4357 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
4359 if ((status
= decode_attr_supported(xdr
, bitmap
, res
->attr_bitmask
)) != 0)
4361 if ((status
= decode_attr_fh_expire_type(xdr
, bitmap
,
4362 &res
->fh_expire_type
)) != 0)
4364 if ((status
= decode_attr_link_support(xdr
, bitmap
, &res
->has_links
)) != 0)
4366 if ((status
= decode_attr_symlink_support(xdr
, bitmap
, &res
->has_symlinks
)) != 0)
4368 if ((status
= decode_attr_aclsupport(xdr
, bitmap
, &res
->acl_bitmask
)) != 0)
4370 status
= verify_attr_len(xdr
, savep
, attrlen
);
4372 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
4376 static int decode_statfs(struct xdr_stream
*xdr
, struct nfs_fsstat
*fsstat
)
4379 uint32_t attrlen
, bitmap
[3] = {0};
4382 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
4384 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
4386 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
4389 if ((status
= decode_attr_files_avail(xdr
, bitmap
, &fsstat
->afiles
)) != 0)
4391 if ((status
= decode_attr_files_free(xdr
, bitmap
, &fsstat
->ffiles
)) != 0)
4393 if ((status
= decode_attr_files_total(xdr
, bitmap
, &fsstat
->tfiles
)) != 0)
4395 if ((status
= decode_attr_space_avail(xdr
, bitmap
, &fsstat
->abytes
)) != 0)
4397 if ((status
= decode_attr_space_free(xdr
, bitmap
, &fsstat
->fbytes
)) != 0)
4399 if ((status
= decode_attr_space_total(xdr
, bitmap
, &fsstat
->tbytes
)) != 0)
4402 status
= verify_attr_len(xdr
, savep
, attrlen
);
4404 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
4408 static int decode_pathconf(struct xdr_stream
*xdr
, struct nfs_pathconf
*pathconf
)
4411 uint32_t attrlen
, bitmap
[3] = {0};
4414 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
4416 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
4418 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
4421 if ((status
= decode_attr_maxlink(xdr
, bitmap
, &pathconf
->max_link
)) != 0)
4423 if ((status
= decode_attr_maxname(xdr
, bitmap
, &pathconf
->max_namelen
)) != 0)
4426 status
= verify_attr_len(xdr
, savep
, attrlen
);
4428 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
4432 static int decode_threshold_hint(struct xdr_stream
*xdr
,
4440 if (likely(bitmap
[0] & hint_bit
)) {
4441 p
= xdr_inline_decode(xdr
, 8);
4444 xdr_decode_hyper(p
, res
);
4448 print_overflow_msg(__func__
, xdr
);
4452 static int decode_first_threshold_item4(struct xdr_stream
*xdr
,
4453 struct nfs4_threshold
*res
)
4457 uint32_t bitmap
[3] = {0,}, attrlen
;
4461 p
= xdr_inline_decode(xdr
, 4);
4463 print_overflow_msg(__func__
, xdr
);
4466 res
->l_type
= be32_to_cpup(p
);
4468 /* thi_hintset bitmap */
4469 status
= decode_attr_bitmap(xdr
, bitmap
);
4473 /* thi_hintlist length */
4474 status
= decode_attr_length(xdr
, &attrlen
, &savep
);
4478 status
= decode_threshold_hint(xdr
, bitmap
, &res
->rd_sz
, THRESHOLD_RD
);
4481 status
= decode_threshold_hint(xdr
, bitmap
, &res
->wr_sz
, THRESHOLD_WR
);
4484 status
= decode_threshold_hint(xdr
, bitmap
, &res
->rd_io_sz
,
4488 status
= decode_threshold_hint(xdr
, bitmap
, &res
->wr_io_sz
,
4493 status
= verify_attr_len(xdr
, savep
, attrlen
);
4494 res
->bm
= bitmap
[0];
4496 dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n",
4497 __func__
, res
->bm
, res
->rd_sz
, res
->wr_sz
, res
->rd_io_sz
,
4500 dprintk("%s ret=%d!\n", __func__
, status
);
4505 * Thresholds on pNFS direct I/O vrs MDS I/O
4507 static int decode_attr_mdsthreshold(struct xdr_stream
*xdr
,
4509 struct nfs4_threshold
*res
)
4515 if (unlikely(bitmap
[2] & (FATTR4_WORD2_MDSTHRESHOLD
- 1U)))
4517 if (bitmap
[2] & FATTR4_WORD2_MDSTHRESHOLD
) {
4518 /* Did the server return an unrequested attribute? */
4519 if (unlikely(res
== NULL
))
4521 p
= xdr_inline_decode(xdr
, 4);
4524 num
= be32_to_cpup(p
);
4528 printk(KERN_INFO
"%s: Warning: Multiple pNFS layout "
4529 "drivers per filesystem not supported\n",
4532 status
= decode_first_threshold_item4(xdr
, res
);
4533 bitmap
[2] &= ~FATTR4_WORD2_MDSTHRESHOLD
;
4537 print_overflow_msg(__func__
, xdr
);
4541 static int decode_getfattr_attrs(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4542 struct nfs_fattr
*fattr
, struct nfs_fh
*fh
,
4543 struct nfs4_fs_locations
*fs_loc
, struct nfs4_label
*label
,
4544 const struct nfs_server
*server
)
4551 status
= decode_attr_type(xdr
, bitmap
, &type
);
4556 fattr
->mode
|= nfs_type2fmt
[type
];
4557 fattr
->valid
|= status
;
4560 status
= decode_attr_change(xdr
, bitmap
, &fattr
->change_attr
);
4563 fattr
->valid
|= status
;
4565 status
= decode_attr_size(xdr
, bitmap
, &fattr
->size
);
4568 fattr
->valid
|= status
;
4570 status
= decode_attr_fsid(xdr
, bitmap
, &fattr
->fsid
);
4573 fattr
->valid
|= status
;
4576 status
= decode_attr_error(xdr
, bitmap
, &err
);
4580 status
= decode_attr_filehandle(xdr
, bitmap
, fh
);
4584 status
= decode_attr_fileid(xdr
, bitmap
, &fattr
->fileid
);
4587 fattr
->valid
|= status
;
4589 status
= decode_attr_fs_locations(xdr
, bitmap
, fs_loc
);
4592 fattr
->valid
|= status
;
4594 status
= decode_attr_mode(xdr
, bitmap
, &fmode
);
4598 fattr
->mode
|= fmode
;
4599 fattr
->valid
|= status
;
4602 status
= decode_attr_nlink(xdr
, bitmap
, &fattr
->nlink
);
4605 fattr
->valid
|= status
;
4607 status
= decode_attr_owner(xdr
, bitmap
, server
, &fattr
->uid
, fattr
->owner_name
);
4610 fattr
->valid
|= status
;
4612 status
= decode_attr_group(xdr
, bitmap
, server
, &fattr
->gid
, fattr
->group_name
);
4615 fattr
->valid
|= status
;
4617 status
= decode_attr_rdev(xdr
, bitmap
, &fattr
->rdev
);
4620 fattr
->valid
|= status
;
4622 status
= decode_attr_space_used(xdr
, bitmap
, &fattr
->du
.nfs3
.used
);
4625 fattr
->valid
|= status
;
4627 status
= decode_attr_time_access(xdr
, bitmap
, &fattr
->atime
);
4630 fattr
->valid
|= status
;
4632 status
= decode_attr_time_metadata(xdr
, bitmap
, &fattr
->ctime
);
4635 fattr
->valid
|= status
;
4637 status
= decode_attr_time_modify(xdr
, bitmap
, &fattr
->mtime
);
4640 fattr
->valid
|= status
;
4642 status
= decode_attr_mounted_on_fileid(xdr
, bitmap
, &fattr
->mounted_on_fileid
);
4645 fattr
->valid
|= status
;
4647 status
= decode_attr_mdsthreshold(xdr
, bitmap
, fattr
->mdsthreshold
);
4652 status
= decode_attr_security_label(xdr
, bitmap
, label
);
4655 fattr
->valid
|= status
;
4659 dprintk("%s: xdr returned %d\n", __func__
, -status
);
4663 static int decode_getfattr_generic(struct xdr_stream
*xdr
, struct nfs_fattr
*fattr
,
4664 struct nfs_fh
*fh
, struct nfs4_fs_locations
*fs_loc
,
4665 struct nfs4_label
*label
, const struct nfs_server
*server
)
4672 status
= decode_op_hdr(xdr
, OP_GETATTR
);
4676 status
= decode_attr_bitmap(xdr
, bitmap
);
4680 status
= decode_attr_length(xdr
, &attrlen
, &savep
);
4684 status
= decode_getfattr_attrs(xdr
, bitmap
, fattr
, fh
, fs_loc
,
4689 status
= verify_attr_len(xdr
, savep
, attrlen
);
4691 dprintk("%s: xdr returned %d\n", __func__
, -status
);
4695 static int decode_getfattr_label(struct xdr_stream
*xdr
, struct nfs_fattr
*fattr
,
4696 struct nfs4_label
*label
, const struct nfs_server
*server
)
4698 return decode_getfattr_generic(xdr
, fattr
, NULL
, NULL
, label
, server
);
4701 static int decode_getfattr(struct xdr_stream
*xdr
, struct nfs_fattr
*fattr
,
4702 const struct nfs_server
*server
)
4704 return decode_getfattr_generic(xdr
, fattr
, NULL
, NULL
, NULL
, server
);
4708 * Decode potentially multiple layout types. Currently we only support
4709 * one layout driver per file system.
4711 static int decode_first_pnfs_layout_type(struct xdr_stream
*xdr
,
4712 uint32_t *layouttype
)
4717 p
= xdr_inline_decode(xdr
, 4);
4720 num
= be32_to_cpup(p
);
4722 /* pNFS is not supported by the underlying file system */
4728 printk(KERN_INFO
"NFS: %s: Warning: Multiple pNFS layout "
4729 "drivers per filesystem not supported\n", __func__
);
4731 /* Decode and set first layout type, move xdr->p past unused types */
4732 p
= xdr_inline_decode(xdr
, num
* 4);
4735 *layouttype
= be32_to_cpup(p
);
4738 print_overflow_msg(__func__
, xdr
);
4743 * The type of file system exported.
4744 * Note we must ensure that layouttype is set in any non-error case.
4746 static int decode_attr_pnfstype(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4747 uint32_t *layouttype
)
4751 dprintk("%s: bitmap is %x\n", __func__
, bitmap
[1]);
4752 if (unlikely(bitmap
[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES
- 1U)))
4754 if (bitmap
[1] & FATTR4_WORD1_FS_LAYOUT_TYPES
) {
4755 status
= decode_first_pnfs_layout_type(xdr
, layouttype
);
4756 bitmap
[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES
;
4763 * The prefered block size for layout directed io
4765 static int decode_attr_layout_blksize(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4770 dprintk("%s: bitmap is %x\n", __func__
, bitmap
[2]);
4772 if (bitmap
[2] & FATTR4_WORD2_LAYOUT_BLKSIZE
) {
4773 p
= xdr_inline_decode(xdr
, 4);
4775 print_overflow_msg(__func__
, xdr
);
4778 *res
= be32_to_cpup(p
);
4779 bitmap
[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE
;
4784 static int decode_fsinfo(struct xdr_stream
*xdr
, struct nfs_fsinfo
*fsinfo
)
4787 uint32_t attrlen
, bitmap
[3];
4790 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
4792 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
4794 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
4797 fsinfo
->rtmult
= fsinfo
->wtmult
= 512; /* ??? */
4799 if ((status
= decode_attr_lease_time(xdr
, bitmap
, &fsinfo
->lease_time
)) != 0)
4801 if ((status
= decode_attr_maxfilesize(xdr
, bitmap
, &fsinfo
->maxfilesize
)) != 0)
4803 if ((status
= decode_attr_maxread(xdr
, bitmap
, &fsinfo
->rtmax
)) != 0)
4805 fsinfo
->rtpref
= fsinfo
->dtpref
= fsinfo
->rtmax
;
4806 if ((status
= decode_attr_maxwrite(xdr
, bitmap
, &fsinfo
->wtmax
)) != 0)
4808 fsinfo
->wtpref
= fsinfo
->wtmax
;
4809 status
= decode_attr_time_delta(xdr
, bitmap
, &fsinfo
->time_delta
);
4812 status
= decode_attr_pnfstype(xdr
, bitmap
, &fsinfo
->layouttype
);
4815 status
= decode_attr_layout_blksize(xdr
, bitmap
, &fsinfo
->blksize
);
4819 status
= verify_attr_len(xdr
, savep
, attrlen
);
4821 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
4825 static int decode_getfh(struct xdr_stream
*xdr
, struct nfs_fh
*fh
)
4831 /* Zero handle first to allow comparisons */
4832 memset(fh
, 0, sizeof(*fh
));
4834 status
= decode_op_hdr(xdr
, OP_GETFH
);
4838 p
= xdr_inline_decode(xdr
, 4);
4841 len
= be32_to_cpup(p
);
4842 if (len
> NFS4_FHSIZE
)
4845 p
= xdr_inline_decode(xdr
, len
);
4848 memcpy(fh
->data
, p
, len
);
4851 print_overflow_msg(__func__
, xdr
);
4855 static int decode_link(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
4859 status
= decode_op_hdr(xdr
, OP_LINK
);
4862 return decode_change_info(xdr
, cinfo
);
4866 * We create the owner, so we know a proper owner.id length is 4.
4868 static int decode_lock_denied (struct xdr_stream
*xdr
, struct file_lock
*fl
)
4870 uint64_t offset
, length
, clientid
;
4872 uint32_t namelen
, type
;
4874 p
= xdr_inline_decode(xdr
, 32); /* read 32 bytes */
4877 p
= xdr_decode_hyper(p
, &offset
); /* read 2 8-byte long words */
4878 p
= xdr_decode_hyper(p
, &length
);
4879 type
= be32_to_cpup(p
++); /* 4 byte read */
4880 if (fl
!= NULL
) { /* manipulate file lock */
4881 fl
->fl_start
= (loff_t
)offset
;
4882 fl
->fl_end
= fl
->fl_start
+ (loff_t
)length
- 1;
4883 if (length
== ~(uint64_t)0)
4884 fl
->fl_end
= OFFSET_MAX
;
4885 fl
->fl_type
= F_WRLCK
;
4887 fl
->fl_type
= F_RDLCK
;
4890 p
= xdr_decode_hyper(p
, &clientid
); /* read 8 bytes */
4891 namelen
= be32_to_cpup(p
); /* read 4 bytes */ /* have read all 32 bytes now */
4892 p
= xdr_inline_decode(xdr
, namelen
); /* variable size field */
4894 return -NFS4ERR_DENIED
;
4896 print_overflow_msg(__func__
, xdr
);
4900 static int decode_lock(struct xdr_stream
*xdr
, struct nfs_lock_res
*res
)
4904 status
= decode_op_hdr(xdr
, OP_LOCK
);
4908 status
= decode_stateid(xdr
, &res
->stateid
);
4909 if (unlikely(status
))
4911 } else if (status
== -NFS4ERR_DENIED
)
4912 status
= decode_lock_denied(xdr
, NULL
);
4913 if (res
->open_seqid
!= NULL
)
4914 nfs_increment_open_seqid(status
, res
->open_seqid
);
4915 nfs_increment_lock_seqid(status
, res
->lock_seqid
);
4920 static int decode_lockt(struct xdr_stream
*xdr
, struct nfs_lockt_res
*res
)
4923 status
= decode_op_hdr(xdr
, OP_LOCKT
);
4924 if (status
== -NFS4ERR_DENIED
)
4925 return decode_lock_denied(xdr
, res
->denied
);
4929 static int decode_locku(struct xdr_stream
*xdr
, struct nfs_locku_res
*res
)
4933 status
= decode_op_hdr(xdr
, OP_LOCKU
);
4935 nfs_increment_lock_seqid(status
, res
->seqid
);
4937 status
= decode_stateid(xdr
, &res
->stateid
);
4941 static int decode_release_lockowner(struct xdr_stream
*xdr
)
4943 return decode_op_hdr(xdr
, OP_RELEASE_LOCKOWNER
);
4946 static int decode_lookup(struct xdr_stream
*xdr
)
4948 return decode_op_hdr(xdr
, OP_LOOKUP
);
4951 /* This is too sick! */
4952 static int decode_space_limit(struct xdr_stream
*xdr
, u64
*maxsize
)
4955 uint32_t limit_type
, nblocks
, blocksize
;
4957 p
= xdr_inline_decode(xdr
, 12);
4960 limit_type
= be32_to_cpup(p
++);
4961 switch (limit_type
) {
4963 xdr_decode_hyper(p
, maxsize
);
4966 nblocks
= be32_to_cpup(p
++);
4967 blocksize
= be32_to_cpup(p
);
4968 *maxsize
= (uint64_t)nblocks
* (uint64_t)blocksize
;
4972 print_overflow_msg(__func__
, xdr
);
4976 static int decode_delegation(struct xdr_stream
*xdr
, struct nfs_openres
*res
)
4979 uint32_t delegation_type
;
4982 p
= xdr_inline_decode(xdr
, 4);
4985 delegation_type
= be32_to_cpup(p
);
4986 if (delegation_type
== NFS4_OPEN_DELEGATE_NONE
) {
4987 res
->delegation_type
= 0;
4990 status
= decode_stateid(xdr
, &res
->delegation
);
4991 if (unlikely(status
))
4993 p
= xdr_inline_decode(xdr
, 4);
4996 res
->do_recall
= be32_to_cpup(p
);
4998 switch (delegation_type
) {
4999 case NFS4_OPEN_DELEGATE_READ
:
5000 res
->delegation_type
= FMODE_READ
;
5002 case NFS4_OPEN_DELEGATE_WRITE
:
5003 res
->delegation_type
= FMODE_WRITE
|FMODE_READ
;
5004 if (decode_space_limit(xdr
, &res
->maxsize
) < 0)
5007 return decode_ace(xdr
, NULL
, res
->server
->nfs_client
);
5009 print_overflow_msg(__func__
, xdr
);
5013 static int decode_open(struct xdr_stream
*xdr
, struct nfs_openres
*res
)
5016 uint32_t savewords
, bmlen
, i
;
5019 if (!__decode_op_hdr(xdr
, OP_OPEN
, &status
))
5021 nfs_increment_open_seqid(status
, res
->seqid
);
5024 status
= decode_stateid(xdr
, &res
->stateid
);
5025 if (unlikely(status
))
5028 decode_change_info(xdr
, &res
->cinfo
);
5030 p
= xdr_inline_decode(xdr
, 8);
5033 res
->rflags
= be32_to_cpup(p
++);
5034 bmlen
= be32_to_cpup(p
);
5038 p
= xdr_inline_decode(xdr
, bmlen
<< 2);
5041 savewords
= min_t(uint32_t, bmlen
, NFS4_BITMAP_SIZE
);
5042 for (i
= 0; i
< savewords
; ++i
)
5043 res
->attrset
[i
] = be32_to_cpup(p
++);
5044 for (; i
< NFS4_BITMAP_SIZE
; i
++)
5045 res
->attrset
[i
] = 0;
5047 return decode_delegation(xdr
, res
);
5049 dprintk("%s: Bitmap too large! Length = %u\n", __func__
, bmlen
);
5052 print_overflow_msg(__func__
, xdr
);
5056 static int decode_open_confirm(struct xdr_stream
*xdr
, struct nfs_open_confirmres
*res
)
5060 status
= decode_op_hdr(xdr
, OP_OPEN_CONFIRM
);
5062 nfs_increment_open_seqid(status
, res
->seqid
);
5064 status
= decode_stateid(xdr
, &res
->stateid
);
5068 static int decode_open_downgrade(struct xdr_stream
*xdr
, struct nfs_closeres
*res
)
5072 status
= decode_op_hdr(xdr
, OP_OPEN_DOWNGRADE
);
5074 nfs_increment_open_seqid(status
, res
->seqid
);
5076 status
= decode_stateid(xdr
, &res
->stateid
);
5080 static int decode_putfh(struct xdr_stream
*xdr
)
5082 return decode_op_hdr(xdr
, OP_PUTFH
);
5085 static int decode_putrootfh(struct xdr_stream
*xdr
)
5087 return decode_op_hdr(xdr
, OP_PUTROOTFH
);
5090 static int decode_read(struct xdr_stream
*xdr
, struct rpc_rqst
*req
,
5091 struct nfs_pgio_res
*res
)
5094 uint32_t count
, eof
, recvd
;
5097 status
= decode_op_hdr(xdr
, OP_READ
);
5100 p
= xdr_inline_decode(xdr
, 8);
5103 eof
= be32_to_cpup(p
++);
5104 count
= be32_to_cpup(p
);
5105 recvd
= xdr_read_pages(xdr
, count
);
5106 if (count
> recvd
) {
5107 dprintk("NFS: server cheating in read reply: "
5108 "count %u > recvd %u\n", count
, recvd
);
5116 print_overflow_msg(__func__
, xdr
);
5120 static int decode_readdir(struct xdr_stream
*xdr
, struct rpc_rqst
*req
, struct nfs4_readdir_res
*readdir
)
5125 status
= decode_op_hdr(xdr
, OP_READDIR
);
5127 status
= decode_verifier(xdr
, readdir
->verifier
.data
);
5128 if (unlikely(status
))
5130 memcpy(verf
, readdir
->verifier
.data
, sizeof(verf
));
5131 dprintk("%s: verifier = %08x:%08x\n",
5132 __func__
, verf
[0], verf
[1]);
5133 return xdr_read_pages(xdr
, xdr
->buf
->page_len
);
5136 static int decode_readlink(struct xdr_stream
*xdr
, struct rpc_rqst
*req
)
5138 struct xdr_buf
*rcvbuf
= &req
->rq_rcv_buf
;
5143 status
= decode_op_hdr(xdr
, OP_READLINK
);
5147 /* Convert length of symlink */
5148 p
= xdr_inline_decode(xdr
, 4);
5151 len
= be32_to_cpup(p
);
5152 if (len
>= rcvbuf
->page_len
|| len
<= 0) {
5153 dprintk("nfs: server returned giant symlink!\n");
5154 return -ENAMETOOLONG
;
5156 recvd
= xdr_read_pages(xdr
, len
);
5158 dprintk("NFS: server cheating in readlink reply: "
5159 "count %u > recvd %u\n", len
, recvd
);
5163 * The XDR encode routine has set things up so that
5164 * the link text will be copied directly into the
5165 * buffer. We just have to do overflow-checking,
5166 * and and null-terminate the text (the VFS expects
5167 * null-termination).
5169 xdr_terminate_string(rcvbuf
, len
);
5172 print_overflow_msg(__func__
, xdr
);
5176 static int decode_remove(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
5180 status
= decode_op_hdr(xdr
, OP_REMOVE
);
5183 status
= decode_change_info(xdr
, cinfo
);
5188 static int decode_rename(struct xdr_stream
*xdr
, struct nfs4_change_info
*old_cinfo
,
5189 struct nfs4_change_info
*new_cinfo
)
5193 status
= decode_op_hdr(xdr
, OP_RENAME
);
5196 if ((status
= decode_change_info(xdr
, old_cinfo
)))
5198 status
= decode_change_info(xdr
, new_cinfo
);
5203 static int decode_renew(struct xdr_stream
*xdr
)
5205 return decode_op_hdr(xdr
, OP_RENEW
);
5209 decode_restorefh(struct xdr_stream
*xdr
)
5211 return decode_op_hdr(xdr
, OP_RESTOREFH
);
5214 static int decode_getacl(struct xdr_stream
*xdr
, struct rpc_rqst
*req
,
5215 struct nfs_getaclres
*res
)
5221 unsigned int pg_offset
;
5224 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
5227 xdr_enter_page(xdr
, xdr
->buf
->page_len
);
5229 /* Calculate the offset of the page data */
5230 pg_offset
= xdr
->buf
->head
[0].iov_len
;
5232 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
5234 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
5237 if (unlikely(bitmap
[0] & (FATTR4_WORD0_ACL
- 1U)))
5239 if (likely(bitmap
[0] & FATTR4_WORD0_ACL
)) {
5241 /* The bitmap (xdr len + bitmaps) and the attr xdr len words
5242 * are stored with the acl data to handle the problem of
5243 * variable length bitmaps.*/
5244 res
->acl_data_offset
= xdr_stream_pos(xdr
) - pg_offset
;
5245 res
->acl_len
= attrlen
;
5247 /* Check for receive buffer overflow */
5248 if (res
->acl_len
> (xdr
->nwords
<< 2) ||
5249 res
->acl_len
+ res
->acl_data_offset
> xdr
->buf
->page_len
) {
5250 res
->acl_flags
|= NFS4_ACL_TRUNC
;
5251 dprintk("NFS: acl reply: attrlen %u > page_len %u\n",
5252 attrlen
, xdr
->nwords
<< 2);
5255 status
= -EOPNOTSUPP
;
5262 decode_savefh(struct xdr_stream
*xdr
)
5264 return decode_op_hdr(xdr
, OP_SAVEFH
);
5267 static int decode_setattr(struct xdr_stream
*xdr
)
5273 status
= decode_op_hdr(xdr
, OP_SETATTR
);
5276 p
= xdr_inline_decode(xdr
, 4);
5279 bmlen
= be32_to_cpup(p
);
5280 p
= xdr_inline_decode(xdr
, bmlen
<< 2);
5284 print_overflow_msg(__func__
, xdr
);
5288 static int decode_setclientid(struct xdr_stream
*xdr
, struct nfs4_setclientid_res
*res
)
5294 p
= xdr_inline_decode(xdr
, 8);
5297 opnum
= be32_to_cpup(p
++);
5298 if (opnum
!= OP_SETCLIENTID
) {
5299 dprintk("nfs: decode_setclientid: Server returned operation"
5303 nfserr
= be32_to_cpup(p
);
5304 if (nfserr
== NFS_OK
) {
5305 p
= xdr_inline_decode(xdr
, 8 + NFS4_VERIFIER_SIZE
);
5308 p
= xdr_decode_hyper(p
, &res
->clientid
);
5309 memcpy(res
->confirm
.data
, p
, NFS4_VERIFIER_SIZE
);
5310 } else if (nfserr
== NFSERR_CLID_INUSE
) {
5313 /* skip netid string */
5314 p
= xdr_inline_decode(xdr
, 4);
5317 len
= be32_to_cpup(p
);
5318 p
= xdr_inline_decode(xdr
, len
);
5322 /* skip uaddr string */
5323 p
= xdr_inline_decode(xdr
, 4);
5326 len
= be32_to_cpup(p
);
5327 p
= xdr_inline_decode(xdr
, len
);
5330 return -NFSERR_CLID_INUSE
;
5332 return nfs4_stat_to_errno(nfserr
);
5336 print_overflow_msg(__func__
, xdr
);
5340 static int decode_setclientid_confirm(struct xdr_stream
*xdr
)
5342 return decode_op_hdr(xdr
, OP_SETCLIENTID_CONFIRM
);
5345 static int decode_write(struct xdr_stream
*xdr
, struct nfs_pgio_res
*res
)
5350 status
= decode_op_hdr(xdr
, OP_WRITE
);
5354 p
= xdr_inline_decode(xdr
, 8);
5357 res
->count
= be32_to_cpup(p
++);
5358 res
->verf
->committed
= be32_to_cpup(p
++);
5359 return decode_write_verifier(xdr
, &res
->verf
->verifier
);
5361 print_overflow_msg(__func__
, xdr
);
5365 static int decode_delegreturn(struct xdr_stream
*xdr
)
5367 return decode_op_hdr(xdr
, OP_DELEGRETURN
);
5370 static int decode_secinfo_gss(struct xdr_stream
*xdr
,
5371 struct nfs4_secinfo4
*flavor
)
5376 p
= xdr_inline_decode(xdr
, 4);
5379 oid_len
= be32_to_cpup(p
);
5380 if (oid_len
> GSS_OID_MAX_LEN
)
5383 p
= xdr_inline_decode(xdr
, oid_len
);
5386 memcpy(flavor
->flavor_info
.oid
.data
, p
, oid_len
);
5387 flavor
->flavor_info
.oid
.len
= oid_len
;
5389 p
= xdr_inline_decode(xdr
, 8);
5392 flavor
->flavor_info
.qop
= be32_to_cpup(p
++);
5393 flavor
->flavor_info
.service
= be32_to_cpup(p
);
5398 print_overflow_msg(__func__
, xdr
);
5404 static int decode_secinfo_common(struct xdr_stream
*xdr
, struct nfs4_secinfo_res
*res
)
5406 struct nfs4_secinfo4
*sec_flavor
;
5407 unsigned int i
, num_flavors
;
5411 p
= xdr_inline_decode(xdr
, 4);
5415 res
->flavors
->num_flavors
= 0;
5416 num_flavors
= be32_to_cpup(p
);
5418 for (i
= 0; i
< num_flavors
; i
++) {
5419 sec_flavor
= &res
->flavors
->flavors
[i
];
5420 if ((char *)&sec_flavor
[1] - (char *)res
->flavors
> PAGE_SIZE
)
5423 p
= xdr_inline_decode(xdr
, 4);
5426 sec_flavor
->flavor
= be32_to_cpup(p
);
5428 if (sec_flavor
->flavor
== RPC_AUTH_GSS
) {
5429 status
= decode_secinfo_gss(xdr
, sec_flavor
);
5433 res
->flavors
->num_flavors
++;
5440 print_overflow_msg(__func__
, xdr
);
5444 static int decode_secinfo(struct xdr_stream
*xdr
, struct nfs4_secinfo_res
*res
)
5446 int status
= decode_op_hdr(xdr
, OP_SECINFO
);
5449 return decode_secinfo_common(xdr
, res
);
5452 #if defined(CONFIG_NFS_V4_1)
5453 static int decode_secinfo_no_name(struct xdr_stream
*xdr
, struct nfs4_secinfo_res
*res
)
5455 int status
= decode_op_hdr(xdr
, OP_SECINFO_NO_NAME
);
5458 return decode_secinfo_common(xdr
, res
);
5461 static int decode_op_map(struct xdr_stream
*xdr
, struct nfs4_op_map
*op_map
)
5464 uint32_t bitmap_words
;
5467 p
= xdr_inline_decode(xdr
, 4);
5468 bitmap_words
= be32_to_cpup(p
++);
5469 if (bitmap_words
> NFS4_OP_MAP_NUM_WORDS
)
5471 p
= xdr_inline_decode(xdr
, 4 * bitmap_words
);
5472 for (i
= 0; i
< bitmap_words
; i
++)
5473 op_map
->u
.words
[i
] = be32_to_cpup(p
++);
5478 static int decode_exchange_id(struct xdr_stream
*xdr
,
5479 struct nfs41_exchange_id_res
*res
)
5485 uint32_t impl_id_count
;
5487 status
= decode_op_hdr(xdr
, OP_EXCHANGE_ID
);
5491 p
= xdr_inline_decode(xdr
, 8);
5494 xdr_decode_hyper(p
, &res
->clientid
);
5495 p
= xdr_inline_decode(xdr
, 12);
5498 res
->seqid
= be32_to_cpup(p
++);
5499 res
->flags
= be32_to_cpup(p
++);
5501 res
->state_protect
.how
= be32_to_cpup(p
);
5502 switch (res
->state_protect
.how
) {
5506 status
= decode_op_map(xdr
, &res
->state_protect
.enforce
);
5509 status
= decode_op_map(xdr
, &res
->state_protect
.allow
);
5518 /* server_owner4.so_minor_id */
5519 p
= xdr_inline_decode(xdr
, 8);
5522 p
= xdr_decode_hyper(p
, &res
->server_owner
->minor_id
);
5524 /* server_owner4.so_major_id */
5525 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
5526 if (unlikely(status
))
5528 if (unlikely(dummy
> NFS4_OPAQUE_LIMIT
))
5530 memcpy(res
->server_owner
->major_id
, dummy_str
, dummy
);
5531 res
->server_owner
->major_id_sz
= dummy
;
5534 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
5535 if (unlikely(status
))
5537 if (unlikely(dummy
> NFS4_OPAQUE_LIMIT
))
5539 memcpy(res
->server_scope
->server_scope
, dummy_str
, dummy
);
5540 res
->server_scope
->server_scope_sz
= dummy
;
5542 /* Implementation Id */
5543 p
= xdr_inline_decode(xdr
, 4);
5546 impl_id_count
= be32_to_cpup(p
++);
5548 if (impl_id_count
) {
5550 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
5551 if (unlikely(status
))
5553 if (unlikely(dummy
> NFS4_OPAQUE_LIMIT
))
5555 memcpy(res
->impl_id
->domain
, dummy_str
, dummy
);
5558 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
5559 if (unlikely(status
))
5561 if (unlikely(dummy
> NFS4_OPAQUE_LIMIT
))
5563 memcpy(res
->impl_id
->name
, dummy_str
, dummy
);
5566 p
= xdr_inline_decode(xdr
, 12);
5569 p
= xdr_decode_hyper(p
, &res
->impl_id
->date
.seconds
);
5570 res
->impl_id
->date
.nseconds
= be32_to_cpup(p
);
5572 /* if there's more than one entry, ignore the rest */
5576 print_overflow_msg(__func__
, xdr
);
5580 static int decode_chan_attrs(struct xdr_stream
*xdr
,
5581 struct nfs4_channel_attrs
*attrs
)
5586 p
= xdr_inline_decode(xdr
, 28);
5589 val
= be32_to_cpup(p
++); /* headerpadsz */
5591 return -EINVAL
; /* no support for header padding yet */
5592 attrs
->max_rqst_sz
= be32_to_cpup(p
++);
5593 attrs
->max_resp_sz
= be32_to_cpup(p
++);
5594 attrs
->max_resp_sz_cached
= be32_to_cpup(p
++);
5595 attrs
->max_ops
= be32_to_cpup(p
++);
5596 attrs
->max_reqs
= be32_to_cpup(p
++);
5597 nr_attrs
= be32_to_cpup(p
);
5598 if (unlikely(nr_attrs
> 1)) {
5599 printk(KERN_WARNING
"NFS: %s: Invalid rdma channel attrs "
5600 "count %u\n", __func__
, nr_attrs
);
5603 if (nr_attrs
== 1) {
5604 p
= xdr_inline_decode(xdr
, 4); /* skip rdma_attrs */
5610 print_overflow_msg(__func__
, xdr
);
5614 static int decode_sessionid(struct xdr_stream
*xdr
, struct nfs4_sessionid
*sid
)
5616 return decode_opaque_fixed(xdr
, sid
->data
, NFS4_MAX_SESSIONID_LEN
);
5619 static int decode_bind_conn_to_session(struct xdr_stream
*xdr
,
5620 struct nfs41_bind_conn_to_session_res
*res
)
5625 status
= decode_op_hdr(xdr
, OP_BIND_CONN_TO_SESSION
);
5627 status
= decode_sessionid(xdr
, &res
->session
->sess_id
);
5628 if (unlikely(status
))
5631 /* dir flags, rdma mode bool */
5632 p
= xdr_inline_decode(xdr
, 8);
5636 res
->dir
= be32_to_cpup(p
++);
5637 if (res
->dir
== 0 || res
->dir
> NFS4_CDFS4_BOTH
)
5639 if (be32_to_cpup(p
) == 0)
5640 res
->use_conn_in_rdma_mode
= false;
5642 res
->use_conn_in_rdma_mode
= true;
5646 print_overflow_msg(__func__
, xdr
);
5650 static int decode_create_session(struct xdr_stream
*xdr
,
5651 struct nfs41_create_session_res
*res
)
5655 struct nfs_client
*clp
= res
->client
;
5656 struct nfs4_session
*session
= clp
->cl_session
;
5658 status
= decode_op_hdr(xdr
, OP_CREATE_SESSION
);
5660 status
= decode_sessionid(xdr
, &session
->sess_id
);
5661 if (unlikely(status
))
5665 p
= xdr_inline_decode(xdr
, 8);
5668 clp
->cl_seqid
= be32_to_cpup(p
++);
5669 session
->flags
= be32_to_cpup(p
);
5671 /* Channel attributes */
5672 status
= decode_chan_attrs(xdr
, &session
->fc_attrs
);
5674 status
= decode_chan_attrs(xdr
, &session
->bc_attrs
);
5677 print_overflow_msg(__func__
, xdr
);
5681 static int decode_destroy_session(struct xdr_stream
*xdr
, void *dummy
)
5683 return decode_op_hdr(xdr
, OP_DESTROY_SESSION
);
5686 static int decode_destroy_clientid(struct xdr_stream
*xdr
, void *dummy
)
5688 return decode_op_hdr(xdr
, OP_DESTROY_CLIENTID
);
5691 static int decode_reclaim_complete(struct xdr_stream
*xdr
, void *dummy
)
5693 return decode_op_hdr(xdr
, OP_RECLAIM_COMPLETE
);
5695 #endif /* CONFIG_NFS_V4_1 */
5697 static int decode_sequence(struct xdr_stream
*xdr
,
5698 struct nfs4_sequence_res
*res
,
5699 struct rpc_rqst
*rqstp
)
5701 #if defined(CONFIG_NFS_V4_1)
5702 struct nfs4_session
*session
;
5703 struct nfs4_sessionid id
;
5708 if (res
->sr_slot
== NULL
)
5710 if (!res
->sr_slot
->table
->session
)
5713 status
= decode_op_hdr(xdr
, OP_SEQUENCE
);
5715 status
= decode_sessionid(xdr
, &id
);
5716 if (unlikely(status
))
5720 * If the server returns different values for sessionID, slotID or
5721 * sequence number, the server is looney tunes.
5723 status
= -EREMOTEIO
;
5724 session
= res
->sr_slot
->table
->session
;
5726 if (memcmp(id
.data
, session
->sess_id
.data
,
5727 NFS4_MAX_SESSIONID_LEN
)) {
5728 dprintk("%s Invalid session id\n", __func__
);
5732 p
= xdr_inline_decode(xdr
, 20);
5737 dummy
= be32_to_cpup(p
++);
5738 if (dummy
!= res
->sr_slot
->seq_nr
) {
5739 dprintk("%s Invalid sequence number\n", __func__
);
5743 dummy
= be32_to_cpup(p
++);
5744 if (dummy
!= res
->sr_slot
->slot_nr
) {
5745 dprintk("%s Invalid slot id\n", __func__
);
5748 /* highest slot id */
5749 res
->sr_highest_slotid
= be32_to_cpup(p
++);
5750 /* target highest slot id */
5751 res
->sr_target_highest_slotid
= be32_to_cpup(p
++);
5753 res
->sr_status_flags
= be32_to_cpup(p
);
5756 res
->sr_status
= status
;
5759 print_overflow_msg(__func__
, xdr
);
5762 #else /* CONFIG_NFS_V4_1 */
5764 #endif /* CONFIG_NFS_V4_1 */
5767 #if defined(CONFIG_NFS_V4_1)
5769 * TODO: Need to handle case when EOF != true;
5771 static int decode_getdevicelist(struct xdr_stream
*xdr
,
5772 struct pnfs_devicelist
*res
)
5776 nfs4_verifier verftemp
;
5778 status
= decode_op_hdr(xdr
, OP_GETDEVICELIST
);
5782 p
= xdr_inline_decode(xdr
, 8 + 8 + 4);
5786 /* TODO: Skip cookie for now */
5790 p
= xdr_decode_opaque_fixed(p
, verftemp
.data
, NFS4_VERIFIER_SIZE
);
5792 res
->num_devs
= be32_to_cpup(p
);
5794 dprintk("%s: num_dev %d\n", __func__
, res
->num_devs
);
5796 if (res
->num_devs
> NFS4_PNFS_GETDEVLIST_MAXNUM
) {
5797 printk(KERN_ERR
"NFS: %s too many result dev_num %u\n",
5798 __func__
, res
->num_devs
);
5802 p
= xdr_inline_decode(xdr
,
5803 res
->num_devs
* NFS4_DEVICEID4_SIZE
+ 4);
5806 for (i
= 0; i
< res
->num_devs
; i
++)
5807 p
= xdr_decode_opaque_fixed(p
, res
->dev_id
[i
].data
,
5808 NFS4_DEVICEID4_SIZE
);
5809 res
->eof
= be32_to_cpup(p
);
5812 print_overflow_msg(__func__
, xdr
);
5816 static int decode_getdeviceinfo(struct xdr_stream
*xdr
,
5817 struct pnfs_device
*pdev
)
5823 status
= decode_op_hdr(xdr
, OP_GETDEVICEINFO
);
5825 if (status
== -ETOOSMALL
) {
5826 p
= xdr_inline_decode(xdr
, 4);
5829 pdev
->mincount
= be32_to_cpup(p
);
5830 dprintk("%s: Min count too small. mincnt = %u\n",
5831 __func__
, pdev
->mincount
);
5836 p
= xdr_inline_decode(xdr
, 8);
5839 type
= be32_to_cpup(p
++);
5840 if (type
!= pdev
->layout_type
) {
5841 dprintk("%s: layout mismatch req: %u pdev: %u\n",
5842 __func__
, pdev
->layout_type
, type
);
5846 * Get the length of the opaque device_addr4. xdr_read_pages places
5847 * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages)
5848 * and places the remaining xdr data in xdr_buf->tail
5850 pdev
->mincount
= be32_to_cpup(p
);
5851 if (xdr_read_pages(xdr
, pdev
->mincount
) != pdev
->mincount
)
5854 /* Parse notification bitmap, verifying that it is zero. */
5855 p
= xdr_inline_decode(xdr
, 4);
5858 len
= be32_to_cpup(p
);
5862 p
= xdr_inline_decode(xdr
, 4 * len
);
5865 for (i
= 0; i
< len
; i
++, p
++) {
5866 if (be32_to_cpup(p
)) {
5867 dprintk("%s: notifications not supported\n",
5875 print_overflow_msg(__func__
, xdr
);
5879 static int decode_layoutget(struct xdr_stream
*xdr
, struct rpc_rqst
*req
,
5880 struct nfs4_layoutget_res
*res
)
5887 status
= decode_op_hdr(xdr
, OP_LAYOUTGET
);
5890 p
= xdr_inline_decode(xdr
, 4);
5893 res
->return_on_close
= be32_to_cpup(p
);
5894 decode_stateid(xdr
, &res
->stateid
);
5895 p
= xdr_inline_decode(xdr
, 4);
5898 layout_count
= be32_to_cpup(p
);
5899 if (!layout_count
) {
5900 dprintk("%s: server responded with empty layout array\n",
5905 p
= xdr_inline_decode(xdr
, 28);
5908 p
= xdr_decode_hyper(p
, &res
->range
.offset
);
5909 p
= xdr_decode_hyper(p
, &res
->range
.length
);
5910 res
->range
.iomode
= be32_to_cpup(p
++);
5911 res
->type
= be32_to_cpup(p
++);
5912 res
->layoutp
->len
= be32_to_cpup(p
);
5914 dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n",
5916 (unsigned long)res
->range
.offset
,
5917 (unsigned long)res
->range
.length
,
5922 recvd
= xdr_read_pages(xdr
, res
->layoutp
->len
);
5923 if (res
->layoutp
->len
> recvd
) {
5924 dprintk("NFS: server cheating in layoutget reply: "
5925 "layout len %u > recvd %u\n",
5926 res
->layoutp
->len
, recvd
);
5930 if (layout_count
> 1) {
5931 /* We only handle a length one array at the moment. Any
5932 * further entries are just ignored. Note that this means
5933 * the client may see a response that is less than the
5934 * minimum it requested.
5936 dprintk("%s: server responded with %d layouts, dropping tail\n",
5937 __func__
, layout_count
);
5942 print_overflow_msg(__func__
, xdr
);
5946 static int decode_layoutreturn(struct xdr_stream
*xdr
,
5947 struct nfs4_layoutreturn_res
*res
)
5952 status
= decode_op_hdr(xdr
, OP_LAYOUTRETURN
);
5955 p
= xdr_inline_decode(xdr
, 4);
5958 res
->lrs_present
= be32_to_cpup(p
);
5959 if (res
->lrs_present
)
5960 status
= decode_stateid(xdr
, &res
->stateid
);
5963 print_overflow_msg(__func__
, xdr
);
5967 static int decode_layoutcommit(struct xdr_stream
*xdr
,
5968 struct rpc_rqst
*req
,
5969 struct nfs4_layoutcommit_res
*res
)
5975 status
= decode_op_hdr(xdr
, OP_LAYOUTCOMMIT
);
5976 res
->status
= status
;
5980 p
= xdr_inline_decode(xdr
, 4);
5983 sizechanged
= be32_to_cpup(p
);
5986 /* throw away new size */
5987 p
= xdr_inline_decode(xdr
, 8);
5993 print_overflow_msg(__func__
, xdr
);
5997 static int decode_test_stateid(struct xdr_stream
*xdr
,
5998 struct nfs41_test_stateid_res
*res
)
6004 status
= decode_op_hdr(xdr
, OP_TEST_STATEID
);
6008 p
= xdr_inline_decode(xdr
, 4);
6011 num_res
= be32_to_cpup(p
++);
6015 p
= xdr_inline_decode(xdr
, 4);
6018 res
->status
= be32_to_cpup(p
++);
6022 print_overflow_msg(__func__
, xdr
);
6027 static int decode_free_stateid(struct xdr_stream
*xdr
,
6028 struct nfs41_free_stateid_res
*res
)
6030 res
->status
= decode_op_hdr(xdr
, OP_FREE_STATEID
);
6033 #endif /* CONFIG_NFS_V4_1 */
6036 * END OF "GENERIC" DECODE ROUTINES.
6040 * Decode OPEN_DOWNGRADE response
6042 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst
*rqstp
,
6043 struct xdr_stream
*xdr
,
6044 struct nfs_closeres
*res
)
6046 struct compound_hdr hdr
;
6049 status
= decode_compound_hdr(xdr
, &hdr
);
6052 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6055 status
= decode_putfh(xdr
);
6058 status
= decode_open_downgrade(xdr
, res
);
6061 decode_getfattr(xdr
, res
->fattr
, res
->server
);
6067 * Decode ACCESS response
6069 static int nfs4_xdr_dec_access(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6070 struct nfs4_accessres
*res
)
6072 struct compound_hdr hdr
;
6075 status
= decode_compound_hdr(xdr
, &hdr
);
6078 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6081 status
= decode_putfh(xdr
);
6084 status
= decode_access(xdr
, &res
->supported
, &res
->access
);
6087 decode_getfattr(xdr
, res
->fattr
, res
->server
);
6093 * Decode LOOKUP response
6095 static int nfs4_xdr_dec_lookup(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6096 struct nfs4_lookup_res
*res
)
6098 struct compound_hdr hdr
;
6101 status
= decode_compound_hdr(xdr
, &hdr
);
6104 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6107 status
= decode_putfh(xdr
);
6110 status
= decode_lookup(xdr
);
6113 status
= decode_getfh(xdr
, res
->fh
);
6116 status
= decode_getfattr_label(xdr
, res
->fattr
, res
->label
, res
->server
);
6122 * Decode LOOKUP_ROOT response
6124 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst
*rqstp
,
6125 struct xdr_stream
*xdr
,
6126 struct nfs4_lookup_res
*res
)
6128 struct compound_hdr hdr
;
6131 status
= decode_compound_hdr(xdr
, &hdr
);
6134 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6137 status
= decode_putrootfh(xdr
);
6140 status
= decode_getfh(xdr
, res
->fh
);
6142 status
= decode_getfattr_label(xdr
, res
->fattr
,
6143 res
->label
, res
->server
);
6149 * Decode REMOVE response
6151 static int nfs4_xdr_dec_remove(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6152 struct nfs_removeres
*res
)
6154 struct compound_hdr hdr
;
6157 status
= decode_compound_hdr(xdr
, &hdr
);
6160 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6163 status
= decode_putfh(xdr
);
6166 status
= decode_remove(xdr
, &res
->cinfo
);
6172 * Decode RENAME response
6174 static int nfs4_xdr_dec_rename(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6175 struct nfs_renameres
*res
)
6177 struct compound_hdr hdr
;
6180 status
= decode_compound_hdr(xdr
, &hdr
);
6183 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6186 status
= decode_putfh(xdr
);
6189 status
= decode_savefh(xdr
);
6192 status
= decode_putfh(xdr
);
6195 status
= decode_rename(xdr
, &res
->old_cinfo
, &res
->new_cinfo
);
6201 * Decode LINK response
6203 static int nfs4_xdr_dec_link(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6204 struct nfs4_link_res
*res
)
6206 struct compound_hdr hdr
;
6209 status
= decode_compound_hdr(xdr
, &hdr
);
6212 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6215 status
= decode_putfh(xdr
);
6218 status
= decode_savefh(xdr
);
6221 status
= decode_putfh(xdr
);
6224 status
= decode_link(xdr
, &res
->cinfo
);
6228 * Note order: OP_LINK leaves the directory as the current
6231 status
= decode_restorefh(xdr
);
6234 decode_getfattr_label(xdr
, res
->fattr
, res
->label
, res
->server
);
6240 * Decode CREATE response
6242 static int nfs4_xdr_dec_create(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6243 struct nfs4_create_res
*res
)
6245 struct compound_hdr hdr
;
6248 status
= decode_compound_hdr(xdr
, &hdr
);
6251 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6254 status
= decode_putfh(xdr
);
6257 status
= decode_create(xdr
, &res
->dir_cinfo
);
6260 status
= decode_getfh(xdr
, res
->fh
);
6263 decode_getfattr_label(xdr
, res
->fattr
, res
->label
, res
->server
);
6269 * Decode SYMLINK response
6271 static int nfs4_xdr_dec_symlink(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6272 struct nfs4_create_res
*res
)
6274 return nfs4_xdr_dec_create(rqstp
, xdr
, res
);
6278 * Decode GETATTR response
6280 static int nfs4_xdr_dec_getattr(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6281 struct nfs4_getattr_res
*res
)
6283 struct compound_hdr hdr
;
6286 status
= decode_compound_hdr(xdr
, &hdr
);
6289 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6292 status
= decode_putfh(xdr
);
6295 status
= decode_getfattr_label(xdr
, res
->fattr
, res
->label
, res
->server
);
6301 * Encode an SETACL request
6303 static void nfs4_xdr_enc_setacl(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
6304 struct nfs_setaclargs
*args
)
6306 struct compound_hdr hdr
= {
6307 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
6310 encode_compound_hdr(xdr
, req
, &hdr
);
6311 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
6312 encode_putfh(xdr
, args
->fh
, &hdr
);
6313 encode_setacl(xdr
, args
, &hdr
);
6318 * Decode SETACL response
6321 nfs4_xdr_dec_setacl(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6322 struct nfs_setaclres
*res
)
6324 struct compound_hdr hdr
;
6327 status
= decode_compound_hdr(xdr
, &hdr
);
6330 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6333 status
= decode_putfh(xdr
);
6336 status
= decode_setattr(xdr
);
6342 * Decode GETACL response
6345 nfs4_xdr_dec_getacl(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6346 struct nfs_getaclres
*res
)
6348 struct compound_hdr hdr
;
6351 if (res
->acl_scratch
!= NULL
) {
6352 void *p
= page_address(res
->acl_scratch
);
6353 xdr_set_scratch_buffer(xdr
, p
, PAGE_SIZE
);
6355 status
= decode_compound_hdr(xdr
, &hdr
);
6358 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6361 status
= decode_putfh(xdr
);
6364 status
= decode_getacl(xdr
, rqstp
, res
);
6371 * Decode CLOSE response
6373 static int nfs4_xdr_dec_close(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6374 struct nfs_closeres
*res
)
6376 struct compound_hdr hdr
;
6379 status
= decode_compound_hdr(xdr
, &hdr
);
6382 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6385 status
= decode_putfh(xdr
);
6388 status
= decode_close(xdr
, res
);
6392 * Note: Server may do delete on close for this file
6393 * in which case the getattr call will fail with
6394 * an ESTALE error. Shouldn't be a problem,
6395 * though, since fattr->valid will remain unset.
6397 decode_getfattr(xdr
, res
->fattr
, res
->server
);
6403 * Decode OPEN response
6405 static int nfs4_xdr_dec_open(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6406 struct nfs_openres
*res
)
6408 struct compound_hdr hdr
;
6411 status
= decode_compound_hdr(xdr
, &hdr
);
6414 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6417 status
= decode_putfh(xdr
);
6420 status
= decode_open(xdr
, res
);
6423 status
= decode_getfh(xdr
, &res
->fh
);
6426 if (res
->access_request
)
6427 decode_access(xdr
, &res
->access_supported
, &res
->access_result
);
6428 decode_getfattr_label(xdr
, res
->f_attr
, res
->f_label
, res
->server
);
6434 * Decode OPEN_CONFIRM response
6436 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst
*rqstp
,
6437 struct xdr_stream
*xdr
,
6438 struct nfs_open_confirmres
*res
)
6440 struct compound_hdr hdr
;
6443 status
= decode_compound_hdr(xdr
, &hdr
);
6446 status
= decode_putfh(xdr
);
6449 status
= decode_open_confirm(xdr
, res
);
6455 * Decode OPEN response
6457 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst
*rqstp
,
6458 struct xdr_stream
*xdr
,
6459 struct nfs_openres
*res
)
6461 struct compound_hdr hdr
;
6464 status
= decode_compound_hdr(xdr
, &hdr
);
6467 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6470 status
= decode_putfh(xdr
);
6473 status
= decode_open(xdr
, res
);
6476 if (res
->access_request
)
6477 decode_access(xdr
, &res
->access_supported
, &res
->access_result
);
6478 decode_getfattr(xdr
, res
->f_attr
, res
->server
);
6484 * Decode SETATTR response
6486 static int nfs4_xdr_dec_setattr(struct rpc_rqst
*rqstp
,
6487 struct xdr_stream
*xdr
,
6488 struct nfs_setattrres
*res
)
6490 struct compound_hdr hdr
;
6493 status
= decode_compound_hdr(xdr
, &hdr
);
6496 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6499 status
= decode_putfh(xdr
);
6502 status
= decode_setattr(xdr
);
6505 decode_getfattr_label(xdr
, res
->fattr
, res
->label
, res
->server
);
6511 * Decode LOCK response
6513 static int nfs4_xdr_dec_lock(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6514 struct nfs_lock_res
*res
)
6516 struct compound_hdr hdr
;
6519 status
= decode_compound_hdr(xdr
, &hdr
);
6522 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6525 status
= decode_putfh(xdr
);
6528 status
= decode_lock(xdr
, res
);
6534 * Decode LOCKT response
6536 static int nfs4_xdr_dec_lockt(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6537 struct nfs_lockt_res
*res
)
6539 struct compound_hdr hdr
;
6542 status
= decode_compound_hdr(xdr
, &hdr
);
6545 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6548 status
= decode_putfh(xdr
);
6551 status
= decode_lockt(xdr
, res
);
6557 * Decode LOCKU response
6559 static int nfs4_xdr_dec_locku(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6560 struct nfs_locku_res
*res
)
6562 struct compound_hdr hdr
;
6565 status
= decode_compound_hdr(xdr
, &hdr
);
6568 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6571 status
= decode_putfh(xdr
);
6574 status
= decode_locku(xdr
, res
);
6579 static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst
*rqstp
,
6580 struct xdr_stream
*xdr
, void *dummy
)
6582 struct compound_hdr hdr
;
6585 status
= decode_compound_hdr(xdr
, &hdr
);
6587 status
= decode_release_lockowner(xdr
);
6592 * Decode READLINK response
6594 static int nfs4_xdr_dec_readlink(struct rpc_rqst
*rqstp
,
6595 struct xdr_stream
*xdr
,
6596 struct nfs4_readlink_res
*res
)
6598 struct compound_hdr hdr
;
6601 status
= decode_compound_hdr(xdr
, &hdr
);
6604 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6607 status
= decode_putfh(xdr
);
6610 status
= decode_readlink(xdr
, rqstp
);
6616 * Decode READDIR response
6618 static int nfs4_xdr_dec_readdir(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6619 struct nfs4_readdir_res
*res
)
6621 struct compound_hdr hdr
;
6624 status
= decode_compound_hdr(xdr
, &hdr
);
6627 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6630 status
= decode_putfh(xdr
);
6633 status
= decode_readdir(xdr
, rqstp
, res
);
6639 * Decode Read response
6641 static int nfs4_xdr_dec_read(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6642 struct nfs_pgio_res
*res
)
6644 struct compound_hdr hdr
;
6647 status
= decode_compound_hdr(xdr
, &hdr
);
6650 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6653 status
= decode_putfh(xdr
);
6656 status
= decode_read(xdr
, rqstp
, res
);
6658 status
= res
->count
;
6664 * Decode WRITE response
6666 static int nfs4_xdr_dec_write(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6667 struct nfs_pgio_res
*res
)
6669 struct compound_hdr hdr
;
6672 status
= decode_compound_hdr(xdr
, &hdr
);
6675 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6678 status
= decode_putfh(xdr
);
6681 status
= decode_write(xdr
, res
);
6685 decode_getfattr(xdr
, res
->fattr
, res
->server
);
6687 status
= res
->count
;
6693 * Decode COMMIT response
6695 static int nfs4_xdr_dec_commit(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6696 struct nfs_commitres
*res
)
6698 struct compound_hdr hdr
;
6701 status
= decode_compound_hdr(xdr
, &hdr
);
6704 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6707 status
= decode_putfh(xdr
);
6710 status
= decode_commit(xdr
, res
);
6716 * Decode FSINFO response
6718 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
6719 struct nfs4_fsinfo_res
*res
)
6721 struct compound_hdr hdr
;
6724 status
= decode_compound_hdr(xdr
, &hdr
);
6726 status
= decode_sequence(xdr
, &res
->seq_res
, req
);
6728 status
= decode_putfh(xdr
);
6730 status
= decode_fsinfo(xdr
, res
->fsinfo
);
6735 * Decode PATHCONF response
6737 static int nfs4_xdr_dec_pathconf(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
6738 struct nfs4_pathconf_res
*res
)
6740 struct compound_hdr hdr
;
6743 status
= decode_compound_hdr(xdr
, &hdr
);
6745 status
= decode_sequence(xdr
, &res
->seq_res
, req
);
6747 status
= decode_putfh(xdr
);
6749 status
= decode_pathconf(xdr
, res
->pathconf
);
6754 * Decode STATFS response
6756 static int nfs4_xdr_dec_statfs(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
6757 struct nfs4_statfs_res
*res
)
6759 struct compound_hdr hdr
;
6762 status
= decode_compound_hdr(xdr
, &hdr
);
6764 status
= decode_sequence(xdr
, &res
->seq_res
, req
);
6766 status
= decode_putfh(xdr
);
6768 status
= decode_statfs(xdr
, res
->fsstat
);
6773 * Decode GETATTR_BITMAP response
6775 static int nfs4_xdr_dec_server_caps(struct rpc_rqst
*req
,
6776 struct xdr_stream
*xdr
,
6777 struct nfs4_server_caps_res
*res
)
6779 struct compound_hdr hdr
;
6782 status
= decode_compound_hdr(xdr
, &hdr
);
6785 status
= decode_sequence(xdr
, &res
->seq_res
, req
);
6788 status
= decode_putfh(xdr
);
6791 status
= decode_server_caps(xdr
, res
);
6797 * Decode RENEW response
6799 static int nfs4_xdr_dec_renew(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6802 struct compound_hdr hdr
;
6805 status
= decode_compound_hdr(xdr
, &hdr
);
6807 status
= decode_renew(xdr
);
6812 * Decode SETCLIENTID response
6814 static int nfs4_xdr_dec_setclientid(struct rpc_rqst
*req
,
6815 struct xdr_stream
*xdr
,
6816 struct nfs4_setclientid_res
*res
)
6818 struct compound_hdr hdr
;
6821 status
= decode_compound_hdr(xdr
, &hdr
);
6823 status
= decode_setclientid(xdr
, res
);
6828 * Decode SETCLIENTID_CONFIRM response
6830 static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst
*req
,
6831 struct xdr_stream
*xdr
)
6833 struct compound_hdr hdr
;
6836 status
= decode_compound_hdr(xdr
, &hdr
);
6838 status
= decode_setclientid_confirm(xdr
);
6843 * Decode DELEGRETURN response
6845 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst
*rqstp
,
6846 struct xdr_stream
*xdr
,
6847 struct nfs4_delegreturnres
*res
)
6849 struct compound_hdr hdr
;
6852 status
= decode_compound_hdr(xdr
, &hdr
);
6855 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6858 status
= decode_putfh(xdr
);
6861 status
= decode_getfattr(xdr
, res
->fattr
, res
->server
);
6864 status
= decode_delegreturn(xdr
);
6870 * Decode FS_LOCATIONS response
6872 static int nfs4_xdr_dec_fs_locations(struct rpc_rqst
*req
,
6873 struct xdr_stream
*xdr
,
6874 struct nfs4_fs_locations_res
*res
)
6876 struct compound_hdr hdr
;
6879 status
= decode_compound_hdr(xdr
, &hdr
);
6882 status
= decode_sequence(xdr
, &res
->seq_res
, req
);
6885 status
= decode_putfh(xdr
);
6888 if (res
->migration
) {
6889 xdr_enter_page(xdr
, PAGE_SIZE
);
6890 status
= decode_getfattr_generic(xdr
,
6891 &res
->fs_locations
->fattr
,
6892 NULL
, res
->fs_locations
,
6893 NULL
, res
->fs_locations
->server
);
6897 status
= decode_renew(xdr
);
6899 status
= decode_lookup(xdr
);
6902 xdr_enter_page(xdr
, PAGE_SIZE
);
6903 status
= decode_getfattr_generic(xdr
,
6904 &res
->fs_locations
->fattr
,
6905 NULL
, res
->fs_locations
,
6906 NULL
, res
->fs_locations
->server
);
6913 * Decode SECINFO response
6915 static int nfs4_xdr_dec_secinfo(struct rpc_rqst
*rqstp
,
6916 struct xdr_stream
*xdr
,
6917 struct nfs4_secinfo_res
*res
)
6919 struct compound_hdr hdr
;
6922 status
= decode_compound_hdr(xdr
, &hdr
);
6925 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6928 status
= decode_putfh(xdr
);
6931 status
= decode_secinfo(xdr
, res
);
6937 * Decode FSID_PRESENT response
6939 static int nfs4_xdr_dec_fsid_present(struct rpc_rqst
*rqstp
,
6940 struct xdr_stream
*xdr
,
6941 struct nfs4_fsid_present_res
*res
)
6943 struct compound_hdr hdr
;
6946 status
= decode_compound_hdr(xdr
, &hdr
);
6949 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6952 status
= decode_putfh(xdr
);
6955 status
= decode_getfh(xdr
, res
->fh
);
6959 status
= decode_renew(xdr
);
6964 #if defined(CONFIG_NFS_V4_1)
6966 * Decode BIND_CONN_TO_SESSION response
6968 static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst
*rqstp
,
6969 struct xdr_stream
*xdr
,
6972 struct compound_hdr hdr
;
6975 status
= decode_compound_hdr(xdr
, &hdr
);
6977 status
= decode_bind_conn_to_session(xdr
, res
);
6982 * Decode EXCHANGE_ID response
6984 static int nfs4_xdr_dec_exchange_id(struct rpc_rqst
*rqstp
,
6985 struct xdr_stream
*xdr
,
6988 struct compound_hdr hdr
;
6991 status
= decode_compound_hdr(xdr
, &hdr
);
6993 status
= decode_exchange_id(xdr
, res
);
6998 * Decode CREATE_SESSION response
7000 static int nfs4_xdr_dec_create_session(struct rpc_rqst
*rqstp
,
7001 struct xdr_stream
*xdr
,
7002 struct nfs41_create_session_res
*res
)
7004 struct compound_hdr hdr
;
7007 status
= decode_compound_hdr(xdr
, &hdr
);
7009 status
= decode_create_session(xdr
, res
);
7014 * Decode DESTROY_SESSION response
7016 static int nfs4_xdr_dec_destroy_session(struct rpc_rqst
*rqstp
,
7017 struct xdr_stream
*xdr
,
7020 struct compound_hdr hdr
;
7023 status
= decode_compound_hdr(xdr
, &hdr
);
7025 status
= decode_destroy_session(xdr
, res
);
7030 * Decode DESTROY_CLIENTID response
7032 static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst
*rqstp
,
7033 struct xdr_stream
*xdr
,
7036 struct compound_hdr hdr
;
7039 status
= decode_compound_hdr(xdr
, &hdr
);
7041 status
= decode_destroy_clientid(xdr
, res
);
7046 * Decode SEQUENCE response
7048 static int nfs4_xdr_dec_sequence(struct rpc_rqst
*rqstp
,
7049 struct xdr_stream
*xdr
,
7050 struct nfs4_sequence_res
*res
)
7052 struct compound_hdr hdr
;
7055 status
= decode_compound_hdr(xdr
, &hdr
);
7057 status
= decode_sequence(xdr
, res
, rqstp
);
7062 * Decode GET_LEASE_TIME response
7064 static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst
*rqstp
,
7065 struct xdr_stream
*xdr
,
7066 struct nfs4_get_lease_time_res
*res
)
7068 struct compound_hdr hdr
;
7071 status
= decode_compound_hdr(xdr
, &hdr
);
7073 status
= decode_sequence(xdr
, &res
->lr_seq_res
, rqstp
);
7075 status
= decode_putrootfh(xdr
);
7077 status
= decode_fsinfo(xdr
, res
->lr_fsinfo
);
7082 * Decode RECLAIM_COMPLETE response
7084 static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst
*rqstp
,
7085 struct xdr_stream
*xdr
,
7086 struct nfs41_reclaim_complete_res
*res
)
7088 struct compound_hdr hdr
;
7091 status
= decode_compound_hdr(xdr
, &hdr
);
7093 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7095 status
= decode_reclaim_complete(xdr
, (void *)NULL
);
7100 * Decode GETDEVICELIST response
7102 static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst
*rqstp
,
7103 struct xdr_stream
*xdr
,
7104 struct nfs4_getdevicelist_res
*res
)
7106 struct compound_hdr hdr
;
7109 dprintk("encoding getdevicelist!\n");
7111 status
= decode_compound_hdr(xdr
, &hdr
);
7114 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7117 status
= decode_putfh(xdr
);
7120 status
= decode_getdevicelist(xdr
, res
->devlist
);
7126 * Decode GETDEVINFO response
7128 static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst
*rqstp
,
7129 struct xdr_stream
*xdr
,
7130 struct nfs4_getdeviceinfo_res
*res
)
7132 struct compound_hdr hdr
;
7135 status
= decode_compound_hdr(xdr
, &hdr
);
7138 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7141 status
= decode_getdeviceinfo(xdr
, res
->pdev
);
7147 * Decode LAYOUTGET response
7149 static int nfs4_xdr_dec_layoutget(struct rpc_rqst
*rqstp
,
7150 struct xdr_stream
*xdr
,
7151 struct nfs4_layoutget_res
*res
)
7153 struct compound_hdr hdr
;
7156 status
= decode_compound_hdr(xdr
, &hdr
);
7159 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7162 status
= decode_putfh(xdr
);
7165 status
= decode_layoutget(xdr
, rqstp
, res
);
7171 * Decode LAYOUTRETURN response
7173 static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst
*rqstp
,
7174 struct xdr_stream
*xdr
,
7175 struct nfs4_layoutreturn_res
*res
)
7177 struct compound_hdr hdr
;
7180 status
= decode_compound_hdr(xdr
, &hdr
);
7183 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7186 status
= decode_putfh(xdr
);
7189 status
= decode_layoutreturn(xdr
, res
);
7195 * Decode LAYOUTCOMMIT response
7197 static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst
*rqstp
,
7198 struct xdr_stream
*xdr
,
7199 struct nfs4_layoutcommit_res
*res
)
7201 struct compound_hdr hdr
;
7204 status
= decode_compound_hdr(xdr
, &hdr
);
7207 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7210 status
= decode_putfh(xdr
);
7213 status
= decode_layoutcommit(xdr
, rqstp
, res
);
7216 decode_getfattr(xdr
, res
->fattr
, res
->server
);
7222 * Decode SECINFO_NO_NAME response
7224 static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst
*rqstp
,
7225 struct xdr_stream
*xdr
,
7226 struct nfs4_secinfo_res
*res
)
7228 struct compound_hdr hdr
;
7231 status
= decode_compound_hdr(xdr
, &hdr
);
7234 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7237 status
= decode_putrootfh(xdr
);
7240 status
= decode_secinfo_no_name(xdr
, res
);
7246 * Decode TEST_STATEID response
7248 static int nfs4_xdr_dec_test_stateid(struct rpc_rqst
*rqstp
,
7249 struct xdr_stream
*xdr
,
7250 struct nfs41_test_stateid_res
*res
)
7252 struct compound_hdr hdr
;
7255 status
= decode_compound_hdr(xdr
, &hdr
);
7258 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7261 status
= decode_test_stateid(xdr
, res
);
7267 * Decode FREE_STATEID response
7269 static int nfs4_xdr_dec_free_stateid(struct rpc_rqst
*rqstp
,
7270 struct xdr_stream
*xdr
,
7271 struct nfs41_free_stateid_res
*res
)
7273 struct compound_hdr hdr
;
7276 status
= decode_compound_hdr(xdr
, &hdr
);
7279 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7282 status
= decode_free_stateid(xdr
, res
);
7286 #endif /* CONFIG_NFS_V4_1 */
7289 * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in
7290 * the local page cache.
7291 * @xdr: XDR stream where entry resides
7292 * @entry: buffer to fill in with entry data
7293 * @plus: boolean indicating whether this should be a readdirplus entry
7295 * Returns zero if successful, otherwise a negative errno value is
7298 * This function is not invoked during READDIR reply decoding, but
7299 * rather whenever an application invokes the getdents(2) system call
7300 * on a directory already in our cache.
7302 int nfs4_decode_dirent(struct xdr_stream
*xdr
, struct nfs_entry
*entry
,
7306 uint32_t bitmap
[3] = {0};
7308 __be32
*p
= xdr_inline_decode(xdr
, 4);
7311 if (*p
== xdr_zero
) {
7312 p
= xdr_inline_decode(xdr
, 4);
7321 p
= xdr_inline_decode(xdr
, 12);
7324 entry
->prev_cookie
= entry
->cookie
;
7325 p
= xdr_decode_hyper(p
, &entry
->cookie
);
7326 entry
->len
= be32_to_cpup(p
);
7328 p
= xdr_inline_decode(xdr
, entry
->len
);
7331 entry
->name
= (const char *) p
;
7334 * In case the server doesn't return an inode number,
7335 * we fake one here. (We don't use inode number 0,
7336 * since glibc seems to choke on it...)
7339 entry
->fattr
->valid
= 0;
7341 if (decode_attr_bitmap(xdr
, bitmap
) < 0)
7344 if (decode_attr_length(xdr
, &len
, &savep
) < 0)
7347 if (decode_getfattr_attrs(xdr
, bitmap
, entry
->fattr
, entry
->fh
,
7348 NULL
, entry
->label
, entry
->server
) < 0)
7350 if (entry
->fattr
->valid
& NFS_ATTR_FATTR_MOUNTED_ON_FILEID
)
7351 entry
->ino
= entry
->fattr
->mounted_on_fileid
;
7352 else if (entry
->fattr
->valid
& NFS_ATTR_FATTR_FILEID
)
7353 entry
->ino
= entry
->fattr
->fileid
;
7355 entry
->d_type
= DT_UNKNOWN
;
7356 if (entry
->fattr
->valid
& NFS_ATTR_FATTR_TYPE
)
7357 entry
->d_type
= nfs_umode_to_dtype(entry
->fattr
->mode
);
7362 print_overflow_msg(__func__
, xdr
);
7367 * We need to translate between nfs status return values and
7368 * the local errno values which may not be the same.
7375 { NFS4ERR_PERM
, -EPERM
},
7376 { NFS4ERR_NOENT
, -ENOENT
},
7377 { NFS4ERR_IO
, -errno_NFSERR_IO
},
7378 { NFS4ERR_NXIO
, -ENXIO
},
7379 { NFS4ERR_ACCESS
, -EACCES
},
7380 { NFS4ERR_EXIST
, -EEXIST
},
7381 { NFS4ERR_XDEV
, -EXDEV
},
7382 { NFS4ERR_NOTDIR
, -ENOTDIR
},
7383 { NFS4ERR_ISDIR
, -EISDIR
},
7384 { NFS4ERR_INVAL
, -EINVAL
},
7385 { NFS4ERR_FBIG
, -EFBIG
},
7386 { NFS4ERR_NOSPC
, -ENOSPC
},
7387 { NFS4ERR_ROFS
, -EROFS
},
7388 { NFS4ERR_MLINK
, -EMLINK
},
7389 { NFS4ERR_NAMETOOLONG
, -ENAMETOOLONG
},
7390 { NFS4ERR_NOTEMPTY
, -ENOTEMPTY
},
7391 { NFS4ERR_DQUOT
, -EDQUOT
},
7392 { NFS4ERR_STALE
, -ESTALE
},
7393 { NFS4ERR_BADHANDLE
, -EBADHANDLE
},
7394 { NFS4ERR_BAD_COOKIE
, -EBADCOOKIE
},
7395 { NFS4ERR_NOTSUPP
, -ENOTSUPP
},
7396 { NFS4ERR_TOOSMALL
, -ETOOSMALL
},
7397 { NFS4ERR_SERVERFAULT
, -EREMOTEIO
},
7398 { NFS4ERR_BADTYPE
, -EBADTYPE
},
7399 { NFS4ERR_LOCKED
, -EAGAIN
},
7400 { NFS4ERR_SYMLINK
, -ELOOP
},
7401 { NFS4ERR_OP_ILLEGAL
, -EOPNOTSUPP
},
7402 { NFS4ERR_DEADLOCK
, -EDEADLK
},
7407 * Convert an NFS error code to a local one.
7408 * This one is used jointly by NFSv2 and NFSv3.
7411 nfs4_stat_to_errno(int stat
)
7414 for (i
= 0; nfs_errtbl
[i
].stat
!= -1; i
++) {
7415 if (nfs_errtbl
[i
].stat
== stat
)
7416 return nfs_errtbl
[i
].errno
;
7418 if (stat
<= 10000 || stat
> 10100) {
7419 /* The server is looney tunes. */
7422 /* If we cannot translate the error, the recovery routines should
7424 * Note: remaining NFSv4 error codes have values > 10000, so should
7425 * not conflict with native Linux error codes.
7430 #define PROC(proc, argtype, restype) \
7431 [NFSPROC4_CLNT_##proc] = { \
7432 .p_proc = NFSPROC4_COMPOUND, \
7433 .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \
7434 .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \
7435 .p_arglen = NFS4_##argtype##_sz, \
7436 .p_replen = NFS4_##restype##_sz, \
7437 .p_statidx = NFSPROC4_CLNT_##proc, \
7441 struct rpc_procinfo nfs4_procedures
[] = {
7442 PROC(READ
, enc_read
, dec_read
),
7443 PROC(WRITE
, enc_write
, dec_write
),
7444 PROC(COMMIT
, enc_commit
, dec_commit
),
7445 PROC(OPEN
, enc_open
, dec_open
),
7446 PROC(OPEN_CONFIRM
, enc_open_confirm
, dec_open_confirm
),
7447 PROC(OPEN_NOATTR
, enc_open_noattr
, dec_open_noattr
),
7448 PROC(OPEN_DOWNGRADE
, enc_open_downgrade
, dec_open_downgrade
),
7449 PROC(CLOSE
, enc_close
, dec_close
),
7450 PROC(SETATTR
, enc_setattr
, dec_setattr
),
7451 PROC(FSINFO
, enc_fsinfo
, dec_fsinfo
),
7452 PROC(RENEW
, enc_renew
, dec_renew
),
7453 PROC(SETCLIENTID
, enc_setclientid
, dec_setclientid
),
7454 PROC(SETCLIENTID_CONFIRM
, enc_setclientid_confirm
, dec_setclientid_confirm
),
7455 PROC(LOCK
, enc_lock
, dec_lock
),
7456 PROC(LOCKT
, enc_lockt
, dec_lockt
),
7457 PROC(LOCKU
, enc_locku
, dec_locku
),
7458 PROC(ACCESS
, enc_access
, dec_access
),
7459 PROC(GETATTR
, enc_getattr
, dec_getattr
),
7460 PROC(LOOKUP
, enc_lookup
, dec_lookup
),
7461 PROC(LOOKUP_ROOT
, enc_lookup_root
, dec_lookup_root
),
7462 PROC(REMOVE
, enc_remove
, dec_remove
),
7463 PROC(RENAME
, enc_rename
, dec_rename
),
7464 PROC(LINK
, enc_link
, dec_link
),
7465 PROC(SYMLINK
, enc_symlink
, dec_symlink
),
7466 PROC(CREATE
, enc_create
, dec_create
),
7467 PROC(PATHCONF
, enc_pathconf
, dec_pathconf
),
7468 PROC(STATFS
, enc_statfs
, dec_statfs
),
7469 PROC(READLINK
, enc_readlink
, dec_readlink
),
7470 PROC(READDIR
, enc_readdir
, dec_readdir
),
7471 PROC(SERVER_CAPS
, enc_server_caps
, dec_server_caps
),
7472 PROC(DELEGRETURN
, enc_delegreturn
, dec_delegreturn
),
7473 PROC(GETACL
, enc_getacl
, dec_getacl
),
7474 PROC(SETACL
, enc_setacl
, dec_setacl
),
7475 PROC(FS_LOCATIONS
, enc_fs_locations
, dec_fs_locations
),
7476 PROC(RELEASE_LOCKOWNER
, enc_release_lockowner
, dec_release_lockowner
),
7477 PROC(SECINFO
, enc_secinfo
, dec_secinfo
),
7478 PROC(FSID_PRESENT
, enc_fsid_present
, dec_fsid_present
),
7479 #if defined(CONFIG_NFS_V4_1)
7480 PROC(EXCHANGE_ID
, enc_exchange_id
, dec_exchange_id
),
7481 PROC(CREATE_SESSION
, enc_create_session
, dec_create_session
),
7482 PROC(DESTROY_SESSION
, enc_destroy_session
, dec_destroy_session
),
7483 PROC(SEQUENCE
, enc_sequence
, dec_sequence
),
7484 PROC(GET_LEASE_TIME
, enc_get_lease_time
, dec_get_lease_time
),
7485 PROC(RECLAIM_COMPLETE
, enc_reclaim_complete
, dec_reclaim_complete
),
7486 PROC(GETDEVICEINFO
, enc_getdeviceinfo
, dec_getdeviceinfo
),
7487 PROC(LAYOUTGET
, enc_layoutget
, dec_layoutget
),
7488 PROC(LAYOUTCOMMIT
, enc_layoutcommit
, dec_layoutcommit
),
7489 PROC(LAYOUTRETURN
, enc_layoutreturn
, dec_layoutreturn
),
7490 PROC(SECINFO_NO_NAME
, enc_secinfo_no_name
, dec_secinfo_no_name
),
7491 PROC(TEST_STATEID
, enc_test_stateid
, dec_test_stateid
),
7492 PROC(FREE_STATEID
, enc_free_stateid
, dec_free_stateid
),
7493 PROC(GETDEVICELIST
, enc_getdevicelist
, dec_getdevicelist
),
7494 PROC(BIND_CONN_TO_SESSION
,
7495 enc_bind_conn_to_session
, dec_bind_conn_to_session
),
7496 PROC(DESTROY_CLIENTID
, enc_destroy_clientid
, dec_destroy_clientid
),
7497 #endif /* CONFIG_NFS_V4_1 */
7500 const struct rpc_version nfs_version4
= {
7502 .nrprocs
= ARRAY_SIZE(nfs4_procedures
),
7503 .procs
= nfs4_procedures