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_common.h>
58 #include "nfs4trace.h"
60 #include "nfs4idmap.h"
61 #include "nfs4session.h"
65 #define NFSDBG_FACILITY NFSDBG_XDR
68 static void encode_layoutget(struct xdr_stream
*xdr
,
69 const struct nfs4_layoutget_args
*args
,
70 struct compound_hdr
*hdr
);
71 static int decode_layoutget(struct xdr_stream
*xdr
, struct rpc_rqst
*req
,
72 struct nfs4_layoutget_res
*res
);
74 /* NFSv4 COMPOUND tags are only wanted for debugging purposes */
76 #define NFS4_MAXTAGLEN 20
78 #define NFS4_MAXTAGLEN 0
81 /* lock,open owner id:
82 * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
84 #define pagepad_maxsz (1)
85 #define open_owner_id_maxsz (1 + 2 + 1 + 1 + 2)
86 #define lock_owner_id_maxsz (1 + 1 + 4)
87 #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
88 #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
89 #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
90 #define op_encode_hdr_maxsz (1)
91 #define op_decode_hdr_maxsz (2)
92 #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
93 #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
94 #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
95 #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
96 #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
98 #define decode_putfh_maxsz (op_decode_hdr_maxsz)
99 #define encode_putrootfh_maxsz (op_encode_hdr_maxsz)
100 #define decode_putrootfh_maxsz (op_decode_hdr_maxsz)
101 #define encode_getfh_maxsz (op_encode_hdr_maxsz)
102 #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
103 ((3+NFS4_FHSIZE) >> 2))
104 #define nfs4_fattr_bitmap_maxsz 4
105 #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
106 #define nfstime4_maxsz (3)
107 #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
108 #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
109 #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
110 #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
111 #ifdef CONFIG_NFS_V4_SECURITY_LABEL
112 /* PI(4 bytes) + LFS(4 bytes) + 1(for null terminator?) + MAXLABELLEN */
113 #define nfs4_label_maxsz (4 + 4 + 1 + XDR_QUADLEN(NFS4_MAXLABELLEN))
115 #define nfs4_label_maxsz 0
117 /* We support only one layout type per file system */
118 #define decode_mdsthreshold_maxsz (1 + 1 + nfs4_fattr_bitmap_maxsz + 1 + 8)
119 /* This is based on getfattr, which uses the most attributes: */
120 #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
123 nfs4_group_maxsz + nfs4_label_maxsz + \
124 decode_mdsthreshold_maxsz))
125 #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
126 nfs4_fattr_value_maxsz)
127 #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
128 #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
133 1 + nfstime4_maxsz + \
135 #define encode_savefh_maxsz (op_encode_hdr_maxsz)
136 #define decode_savefh_maxsz (op_decode_hdr_maxsz)
137 #define encode_restorefh_maxsz (op_encode_hdr_maxsz)
138 #define decode_restorefh_maxsz (op_decode_hdr_maxsz)
139 #define encode_fsinfo_maxsz (encode_getattr_maxsz)
140 /* The 5 accounts for the PNFS attributes, and assumes that at most three
141 * layout types will be returned.
143 #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \
144 nfs4_fattr_bitmap_maxsz + 1 + \
145 1 /* lease time */ + \
146 2 /* max filesize */ + \
148 2 /* max write */ + \
149 nfstime4_maxsz /* time delta */ + \
150 5 /* fs layout types */ + \
151 1 /* layout blksize */ + \
152 1 /* clone blksize */ + \
153 1 /* change attr type */ + \
154 1 /* xattr support */)
155 #define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
156 #define decode_renew_maxsz (op_decode_hdr_maxsz)
157 #define encode_setclientid_maxsz \
158 (op_encode_hdr_maxsz + \
159 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
161 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
163 1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
164 1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
166 #define decode_setclientid_maxsz \
167 (op_decode_hdr_maxsz + \
169 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
170 1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
171 1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN))
172 #define encode_setclientid_confirm_maxsz \
173 (op_encode_hdr_maxsz + \
174 3 + (NFS4_VERIFIER_SIZE >> 2))
175 #define decode_setclientid_confirm_maxsz \
176 (op_decode_hdr_maxsz)
177 #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
178 #define decode_lookup_maxsz (op_decode_hdr_maxsz)
179 #define encode_lookupp_maxsz (op_encode_hdr_maxsz)
180 #define decode_lookupp_maxsz (op_decode_hdr_maxsz)
181 #define encode_share_access_maxsz \
183 #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
184 #define encode_opentype_maxsz (1 + encode_createmode_maxsz)
185 #define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
186 #define encode_open_maxsz (op_encode_hdr_maxsz + \
187 2 + encode_share_access_maxsz + 2 + \
188 open_owner_id_maxsz + \
189 encode_opentype_maxsz + \
190 encode_claim_null_maxsz)
191 #define decode_space_limit_maxsz (3)
192 #define decode_ace_maxsz (3 + nfs4_owner_maxsz)
193 #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
194 decode_space_limit_maxsz + \
196 #define decode_change_info_maxsz (5)
197 #define decode_open_maxsz (op_decode_hdr_maxsz + \
198 decode_stateid_maxsz + \
199 decode_change_info_maxsz + 1 + \
200 nfs4_fattr_bitmap_maxsz + \
201 decode_delegation_maxsz)
202 #define encode_open_confirm_maxsz \
203 (op_encode_hdr_maxsz + \
204 encode_stateid_maxsz + 1)
205 #define decode_open_confirm_maxsz \
206 (op_decode_hdr_maxsz + \
207 decode_stateid_maxsz)
208 #define encode_open_downgrade_maxsz \
209 (op_encode_hdr_maxsz + \
210 encode_stateid_maxsz + 1 + \
211 encode_share_access_maxsz)
212 #define decode_open_downgrade_maxsz \
213 (op_decode_hdr_maxsz + \
214 decode_stateid_maxsz)
215 #define encode_close_maxsz (op_encode_hdr_maxsz + \
216 1 + encode_stateid_maxsz)
217 #define decode_close_maxsz (op_decode_hdr_maxsz + \
218 decode_stateid_maxsz)
219 #define encode_setattr_maxsz (op_encode_hdr_maxsz + \
220 encode_stateid_maxsz + \
222 #define decode_setattr_maxsz (op_decode_hdr_maxsz + \
223 nfs4_fattr_bitmap_maxsz)
224 #define encode_delegattr_maxsz (op_encode_hdr_maxsz + \
225 encode_stateid_maxsz + \
226 nfs4_fattr_bitmap_maxsz + \
228 #define decode_delegattr_maxsz (decode_setattr_maxsz)
229 #define encode_read_maxsz (op_encode_hdr_maxsz + \
230 encode_stateid_maxsz + 3)
231 #define decode_read_maxsz (op_decode_hdr_maxsz + 2 + pagepad_maxsz)
232 #define encode_readdir_maxsz (op_encode_hdr_maxsz + \
233 2 + encode_verifier_maxsz + 5 + \
235 #define decode_readdir_maxsz (op_decode_hdr_maxsz + \
236 decode_verifier_maxsz + pagepad_maxsz)
237 #define encode_readlink_maxsz (op_encode_hdr_maxsz)
238 #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1 + pagepad_maxsz)
239 #define encode_write_maxsz (op_encode_hdr_maxsz + \
240 encode_stateid_maxsz + 4)
241 #define decode_write_maxsz (op_decode_hdr_maxsz + \
242 2 + decode_verifier_maxsz)
243 #define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
244 #define decode_commit_maxsz (op_decode_hdr_maxsz + \
245 decode_verifier_maxsz)
246 #define encode_remove_maxsz (op_encode_hdr_maxsz + \
248 #define decode_remove_maxsz (op_decode_hdr_maxsz + \
249 decode_change_info_maxsz)
250 #define encode_rename_maxsz (op_encode_hdr_maxsz + \
252 #define decode_rename_maxsz (op_decode_hdr_maxsz + \
253 decode_change_info_maxsz + \
254 decode_change_info_maxsz)
255 #define encode_link_maxsz (op_encode_hdr_maxsz + \
257 #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
258 #define encode_lockowner_maxsz (7)
259 #define encode_lock_maxsz (op_encode_hdr_maxsz + \
261 1 + encode_stateid_maxsz + 1 + \
262 encode_lockowner_maxsz)
263 #define decode_lock_denied_maxsz \
264 (8 + decode_lockowner_maxsz)
265 #define decode_lock_maxsz (op_decode_hdr_maxsz + \
266 decode_lock_denied_maxsz)
267 #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
268 encode_lockowner_maxsz)
269 #define decode_lockt_maxsz (op_decode_hdr_maxsz + \
270 decode_lock_denied_maxsz)
271 #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
272 encode_stateid_maxsz + \
274 #define decode_locku_maxsz (op_decode_hdr_maxsz + \
275 decode_stateid_maxsz)
276 #define encode_release_lockowner_maxsz \
277 (op_encode_hdr_maxsz + \
278 encode_lockowner_maxsz)
279 #define decode_release_lockowner_maxsz \
280 (op_decode_hdr_maxsz)
281 #define encode_access_maxsz (op_encode_hdr_maxsz + 1)
282 #define decode_access_maxsz (op_decode_hdr_maxsz + 2)
283 #define encode_symlink_maxsz (op_encode_hdr_maxsz + \
284 1 + nfs4_name_maxsz + \
287 #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
288 #define encode_create_maxsz (op_encode_hdr_maxsz + \
289 1 + 2 + nfs4_name_maxsz + \
291 #define decode_create_maxsz (op_decode_hdr_maxsz + \
292 decode_change_info_maxsz + \
293 nfs4_fattr_bitmap_maxsz)
294 #define encode_statfs_maxsz (encode_getattr_maxsz)
295 #define decode_statfs_maxsz (decode_getattr_maxsz)
296 #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
297 #define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
298 #define encode_getacl_maxsz (encode_getattr_maxsz)
299 #define decode_getacl_maxsz (op_decode_hdr_maxsz + \
300 nfs4_fattr_bitmap_maxsz + 1 + pagepad_maxsz)
301 #define encode_setacl_maxsz (op_encode_hdr_maxsz + \
302 encode_stateid_maxsz + 3)
303 #define decode_setacl_maxsz (decode_setattr_maxsz)
304 #define encode_fs_locations_maxsz \
305 (encode_getattr_maxsz)
306 #define decode_fs_locations_maxsz \
308 #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
309 #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4))
311 #if defined(CONFIG_NFS_V4_1)
312 #define NFS4_MAX_MACHINE_NAME_LEN (64)
313 #define IMPL_NAME_LIMIT (sizeof(utsname()->sysname) + sizeof(utsname()->release) + \
314 sizeof(utsname()->version) + sizeof(utsname()->machine) + 8)
316 #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
317 encode_verifier_maxsz + \
318 1 /* co_ownerid.len */ + \
319 /* eia_clientowner */ \
320 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
323 /* max is SP4_MACH_CRED (for now) */ + \
324 1 + NFS4_OP_MAP_NUM_WORDS + \
325 1 + NFS4_OP_MAP_NUM_WORDS + \
326 1 /* implementation id array of size 1 */ + \
327 1 /* nii_domain */ + \
328 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
330 XDR_QUADLEN(IMPL_NAME_LIMIT) + \
332 #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
333 2 /* eir_clientid */ + \
334 1 /* eir_sequenceid */ + \
335 1 /* eir_flags */ + \
337 /* max is SP4_MACH_CRED (for now) */ + \
338 1 + NFS4_OP_MAP_NUM_WORDS + \
339 1 + NFS4_OP_MAP_NUM_WORDS + \
340 2 /* eir_server_owner.so_minor_id */ + \
341 /* eir_server_owner.so_major_id<> */ \
342 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
343 /* eir_server_scope<> */ \
344 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
345 1 /* eir_server_impl_id array length */ + \
346 1 /* nii_domain */ + \
347 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
349 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \
351 #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
352 #define decode_channel_attrs_maxsz (6 + \
353 1 /* ca_rdma_ird.len */ + \
355 #define encode_create_session_maxsz (op_encode_hdr_maxsz + \
356 2 /* csa_clientid */ + \
357 1 /* csa_sequence */ + \
358 1 /* csa_flags */ + \
359 encode_channel_attrs_maxsz + \
360 encode_channel_attrs_maxsz + \
361 1 /* csa_cb_program */ + \
362 1 /* csa_sec_parms.len (1) */ + \
363 1 /* cb_secflavor (AUTH_SYS) */ + \
365 1 /* machinename.len */ + \
366 XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
369 1 /* gids.len (0) */)
370 #define decode_create_session_maxsz (op_decode_hdr_maxsz + \
371 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
372 1 /* csr_sequence */ + \
373 1 /* csr_flags */ + \
374 decode_channel_attrs_maxsz + \
375 decode_channel_attrs_maxsz)
376 #define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \
378 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
379 1 /* bctsa_dir */ + \
380 1 /* bctsa_use_conn_in_rdma_mode */)
381 #define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \
383 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
384 1 /* bctsr_dir */ + \
385 1 /* bctsr_use_conn_in_rdma_mode */)
386 #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
387 #define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
388 #define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2)
389 #define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz)
390 #define encode_sequence_maxsz (op_encode_hdr_maxsz + \
391 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
392 #define decode_sequence_maxsz (op_decode_hdr_maxsz + \
393 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
394 #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
395 #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
396 #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + \
397 XDR_QUADLEN(NFS4_DEVICEID4_SIZE) + \
398 1 /* layout type */ + \
400 1 /* bitmap size */ + \
401 1 /* notification bitmap length */ + \
402 1 /* notification bitmap, word 0 */)
403 #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \
404 1 /* layout type */ + \
405 1 /* opaque devaddr4 length */ + \
406 /* devaddr4 payload is read into page */ \
407 1 /* notification bitmap length */ + \
408 1 /* notification bitmap, word 0 */ + \
409 pagepad_maxsz /* possible XDR padding */)
410 #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \
411 encode_stateid_maxsz)
412 #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \
413 decode_stateid_maxsz + \
414 XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE) + \
416 #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \
420 encode_stateid_maxsz + \
421 1 /* new offset (true) */ + \
422 2 /* last byte written */ + \
423 1 /* nt_timechanged (false) */ + \
424 1 /* layoutupdate4 layout type */ + \
425 1 /* layoutupdate4 opaqueue len */)
426 /* the actual content of layoutupdate4 should
427 be allocated by drivers and spliced in
428 using xdr_write_pages */
429 #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3)
430 #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \
431 encode_stateid_maxsz + \
433 XDR_QUADLEN(NFS4_OPAQUE_LIMIT))
434 #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \
435 1 + decode_stateid_maxsz)
436 #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1)
437 #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz
438 #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \
439 XDR_QUADLEN(NFS4_STATEID_SIZE))
440 #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1)
441 #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \
442 XDR_QUADLEN(NFS4_STATEID_SIZE))
443 #define decode_free_stateid_maxsz (op_decode_hdr_maxsz)
444 #else /* CONFIG_NFS_V4_1 */
445 #define encode_sequence_maxsz 0
446 #define decode_sequence_maxsz 0
447 #define encode_layoutreturn_maxsz 0
448 #define decode_layoutreturn_maxsz 0
449 #define encode_layoutget_maxsz 0
450 #define decode_layoutget_maxsz 0
451 #endif /* CONFIG_NFS_V4_1 */
453 #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
454 #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
455 #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
456 encode_sequence_maxsz + \
457 encode_putfh_maxsz + \
459 #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
460 decode_sequence_maxsz + \
461 decode_putfh_maxsz + \
463 #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
464 encode_sequence_maxsz + \
465 encode_putfh_maxsz + \
466 encode_readlink_maxsz)
467 #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
468 decode_sequence_maxsz + \
469 decode_putfh_maxsz + \
470 decode_readlink_maxsz)
471 #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
472 encode_sequence_maxsz + \
473 encode_putfh_maxsz + \
474 encode_readdir_maxsz)
475 #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
476 decode_sequence_maxsz + \
477 decode_putfh_maxsz + \
478 decode_readdir_maxsz)
479 #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
480 encode_sequence_maxsz + \
481 encode_putfh_maxsz + \
482 encode_write_maxsz + \
483 encode_getattr_maxsz)
484 #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
485 decode_sequence_maxsz + \
486 decode_putfh_maxsz + \
487 decode_write_maxsz + \
488 decode_getattr_maxsz)
489 #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
490 encode_sequence_maxsz + \
491 encode_putfh_maxsz + \
493 #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
494 decode_sequence_maxsz + \
495 decode_putfh_maxsz + \
497 #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
498 encode_sequence_maxsz + \
499 encode_putfh_maxsz + \
500 encode_open_maxsz + \
501 encode_access_maxsz + \
502 encode_getfh_maxsz + \
503 encode_getattr_maxsz + \
504 encode_layoutget_maxsz)
505 #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
506 decode_sequence_maxsz + \
507 decode_putfh_maxsz + \
508 decode_open_maxsz + \
509 decode_access_maxsz + \
510 decode_getfh_maxsz + \
511 decode_getattr_maxsz + \
512 decode_layoutget_maxsz)
513 #define NFS4_enc_open_confirm_sz \
514 (compound_encode_hdr_maxsz + \
515 encode_putfh_maxsz + \
516 encode_open_confirm_maxsz)
517 #define NFS4_dec_open_confirm_sz \
518 (compound_decode_hdr_maxsz + \
519 decode_putfh_maxsz + \
520 decode_open_confirm_maxsz)
521 #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
522 encode_sequence_maxsz + \
523 encode_putfh_maxsz + \
524 encode_open_maxsz + \
525 encode_access_maxsz + \
526 encode_getattr_maxsz + \
527 encode_layoutget_maxsz)
528 #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
529 decode_sequence_maxsz + \
530 decode_putfh_maxsz + \
531 decode_open_maxsz + \
532 decode_access_maxsz + \
533 decode_getattr_maxsz + \
534 decode_layoutget_maxsz)
535 #define NFS4_enc_open_downgrade_sz \
536 (compound_encode_hdr_maxsz + \
537 encode_sequence_maxsz + \
538 encode_putfh_maxsz + \
539 encode_layoutreturn_maxsz + \
540 encode_open_downgrade_maxsz)
541 #define NFS4_dec_open_downgrade_sz \
542 (compound_decode_hdr_maxsz + \
543 decode_sequence_maxsz + \
544 decode_putfh_maxsz + \
545 decode_layoutreturn_maxsz + \
546 decode_open_downgrade_maxsz)
547 #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
548 encode_sequence_maxsz + \
549 encode_putfh_maxsz + \
550 encode_layoutreturn_maxsz + \
551 encode_close_maxsz + \
552 encode_getattr_maxsz)
553 #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
554 decode_sequence_maxsz + \
555 decode_putfh_maxsz + \
556 decode_layoutreturn_maxsz + \
557 decode_close_maxsz + \
558 decode_getattr_maxsz)
559 #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
560 encode_sequence_maxsz + \
561 encode_putfh_maxsz + \
562 encode_setattr_maxsz + \
563 encode_getattr_maxsz)
564 #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
565 decode_sequence_maxsz + \
566 decode_putfh_maxsz + \
567 decode_setattr_maxsz + \
568 decode_getattr_maxsz)
569 #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
570 encode_sequence_maxsz + \
571 encode_putfh_maxsz + \
573 #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
574 decode_sequence_maxsz + \
575 decode_putfh_maxsz + \
577 #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
579 #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
581 #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
582 encode_setclientid_maxsz)
583 #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
584 decode_setclientid_maxsz)
585 #define NFS4_enc_setclientid_confirm_sz \
586 (compound_encode_hdr_maxsz + \
587 encode_setclientid_confirm_maxsz)
588 #define NFS4_dec_setclientid_confirm_sz \
589 (compound_decode_hdr_maxsz + \
590 decode_setclientid_confirm_maxsz)
591 #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
592 encode_sequence_maxsz + \
593 encode_putfh_maxsz + \
595 #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
596 decode_sequence_maxsz + \
597 decode_putfh_maxsz + \
599 #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
600 encode_sequence_maxsz + \
601 encode_putfh_maxsz + \
603 #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
604 decode_sequence_maxsz + \
605 decode_putfh_maxsz + \
607 #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
608 encode_sequence_maxsz + \
609 encode_putfh_maxsz + \
611 #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
612 decode_sequence_maxsz + \
613 decode_putfh_maxsz + \
615 #define NFS4_enc_release_lockowner_sz \
616 (compound_encode_hdr_maxsz + \
617 encode_lockowner_maxsz)
618 #define NFS4_dec_release_lockowner_sz \
619 (compound_decode_hdr_maxsz + \
620 decode_lockowner_maxsz)
621 #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
622 encode_sequence_maxsz + \
623 encode_putfh_maxsz + \
624 encode_access_maxsz + \
625 encode_getattr_maxsz)
626 #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
627 decode_sequence_maxsz + \
628 decode_putfh_maxsz + \
629 decode_access_maxsz + \
630 decode_getattr_maxsz)
631 #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
632 encode_sequence_maxsz + \
633 encode_putfh_maxsz + \
634 encode_getattr_maxsz + \
636 #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
637 decode_sequence_maxsz + \
638 decode_putfh_maxsz + \
639 decode_getattr_maxsz + \
641 #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
642 encode_sequence_maxsz + \
643 encode_putfh_maxsz + \
644 encode_lookup_maxsz + \
645 encode_getattr_maxsz + \
647 #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
648 decode_sequence_maxsz + \
649 decode_putfh_maxsz + \
650 decode_lookup_maxsz + \
651 decode_getattr_maxsz + \
653 #define NFS4_enc_lookupp_sz (compound_encode_hdr_maxsz + \
654 encode_sequence_maxsz + \
655 encode_putfh_maxsz + \
656 encode_lookupp_maxsz + \
657 encode_getattr_maxsz + \
659 #define NFS4_dec_lookupp_sz (compound_decode_hdr_maxsz + \
660 decode_sequence_maxsz + \
661 decode_putfh_maxsz + \
662 decode_lookupp_maxsz + \
663 decode_getattr_maxsz + \
665 #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
666 encode_sequence_maxsz + \
667 encode_putrootfh_maxsz + \
668 encode_getattr_maxsz + \
670 #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
671 decode_sequence_maxsz + \
672 decode_putrootfh_maxsz + \
673 decode_getattr_maxsz + \
675 #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
676 encode_sequence_maxsz + \
677 encode_putfh_maxsz + \
679 #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
680 decode_sequence_maxsz + \
681 decode_putfh_maxsz + \
683 #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
684 encode_sequence_maxsz + \
685 encode_putfh_maxsz + \
686 encode_savefh_maxsz + \
687 encode_putfh_maxsz + \
689 #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
690 decode_sequence_maxsz + \
691 decode_putfh_maxsz + \
692 decode_savefh_maxsz + \
693 decode_putfh_maxsz + \
695 #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
696 encode_sequence_maxsz + \
697 encode_putfh_maxsz + \
698 encode_savefh_maxsz + \
699 encode_putfh_maxsz + \
700 encode_link_maxsz + \
701 encode_restorefh_maxsz + \
702 encode_getattr_maxsz)
703 #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
704 decode_sequence_maxsz + \
705 decode_putfh_maxsz + \
706 decode_savefh_maxsz + \
707 decode_putfh_maxsz + \
708 decode_link_maxsz + \
709 decode_restorefh_maxsz + \
710 decode_getattr_maxsz)
711 #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
712 encode_sequence_maxsz + \
713 encode_putfh_maxsz + \
714 encode_symlink_maxsz + \
715 encode_getattr_maxsz + \
717 #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
718 decode_sequence_maxsz + \
719 decode_putfh_maxsz + \
720 decode_symlink_maxsz + \
721 decode_getattr_maxsz + \
723 #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
724 encode_sequence_maxsz + \
725 encode_putfh_maxsz + \
726 encode_create_maxsz + \
727 encode_getfh_maxsz + \
728 encode_getattr_maxsz)
729 #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
730 decode_sequence_maxsz + \
731 decode_putfh_maxsz + \
732 decode_create_maxsz + \
733 decode_getfh_maxsz + \
734 decode_getattr_maxsz)
735 #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
736 encode_sequence_maxsz + \
737 encode_putfh_maxsz + \
738 encode_getattr_maxsz)
739 #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
740 decode_sequence_maxsz + \
741 decode_putfh_maxsz + \
742 decode_getattr_maxsz)
743 #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
744 encode_sequence_maxsz + \
745 encode_putfh_maxsz + \
747 #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
748 decode_sequence_maxsz + \
749 decode_putfh_maxsz + \
751 #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
752 encode_sequence_maxsz + \
753 encode_putfh_maxsz + \
754 encode_getattr_maxsz)
755 #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
756 decode_sequence_maxsz + \
757 decode_putfh_maxsz + \
758 decode_getattr_maxsz)
759 #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
760 encode_sequence_maxsz + \
761 encode_putfh_maxsz + \
762 encode_layoutreturn_maxsz + \
763 encode_delegattr_maxsz + \
764 encode_delegreturn_maxsz + \
765 encode_getattr_maxsz)
766 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
767 decode_sequence_maxsz + \
768 decode_putfh_maxsz + \
769 decode_layoutreturn_maxsz + \
770 decode_delegattr_maxsz + \
771 decode_delegreturn_maxsz + \
772 decode_getattr_maxsz)
773 #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
774 encode_sequence_maxsz + \
775 encode_putfh_maxsz + \
777 #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
778 decode_sequence_maxsz + \
779 decode_putfh_maxsz + \
781 #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
782 encode_sequence_maxsz + \
783 encode_putfh_maxsz + \
785 #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
786 decode_sequence_maxsz + \
787 decode_putfh_maxsz + \
789 #define NFS4_enc_fs_locations_sz \
790 (compound_encode_hdr_maxsz + \
791 encode_sequence_maxsz + \
792 encode_putfh_maxsz + \
793 encode_lookup_maxsz + \
794 encode_fs_locations_maxsz + \
796 #define NFS4_dec_fs_locations_sz \
797 (compound_decode_hdr_maxsz + \
798 decode_sequence_maxsz + \
799 decode_putfh_maxsz + \
800 decode_lookup_maxsz + \
801 decode_fs_locations_maxsz + \
803 #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \
804 encode_sequence_maxsz + \
805 encode_putfh_maxsz + \
806 encode_secinfo_maxsz)
807 #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \
808 decode_sequence_maxsz + \
809 decode_putfh_maxsz + \
810 decode_secinfo_maxsz)
811 #define NFS4_enc_fsid_present_sz \
812 (compound_encode_hdr_maxsz + \
813 encode_sequence_maxsz + \
814 encode_putfh_maxsz + \
815 encode_getfh_maxsz + \
817 #define NFS4_dec_fsid_present_sz \
818 (compound_decode_hdr_maxsz + \
819 decode_sequence_maxsz + \
820 decode_putfh_maxsz + \
821 decode_getfh_maxsz + \
823 #if defined(CONFIG_NFS_V4_1)
824 #define NFS4_enc_bind_conn_to_session_sz \
825 (compound_encode_hdr_maxsz + \
826 encode_bind_conn_to_session_maxsz)
827 #define NFS4_dec_bind_conn_to_session_sz \
828 (compound_decode_hdr_maxsz + \
829 decode_bind_conn_to_session_maxsz)
830 #define NFS4_enc_exchange_id_sz \
831 (compound_encode_hdr_maxsz + \
832 encode_exchange_id_maxsz)
833 #define NFS4_dec_exchange_id_sz \
834 (compound_decode_hdr_maxsz + \
835 decode_exchange_id_maxsz)
836 #define NFS4_enc_create_session_sz \
837 (compound_encode_hdr_maxsz + \
838 encode_create_session_maxsz)
839 #define NFS4_dec_create_session_sz \
840 (compound_decode_hdr_maxsz + \
841 decode_create_session_maxsz)
842 #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
843 encode_destroy_session_maxsz)
844 #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
845 decode_destroy_session_maxsz)
846 #define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \
847 encode_destroy_clientid_maxsz)
848 #define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \
849 decode_destroy_clientid_maxsz)
850 #define NFS4_enc_sequence_sz \
851 (compound_decode_hdr_maxsz + \
852 encode_sequence_maxsz)
853 #define NFS4_dec_sequence_sz \
854 (compound_decode_hdr_maxsz + \
855 decode_sequence_maxsz)
857 #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
858 encode_sequence_maxsz + \
859 encode_putrootfh_maxsz + \
861 #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
862 decode_sequence_maxsz + \
863 decode_putrootfh_maxsz + \
865 #if defined(CONFIG_NFS_V4_1)
866 #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
867 encode_sequence_maxsz + \
868 encode_reclaim_complete_maxsz)
869 #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
870 decode_sequence_maxsz + \
871 decode_reclaim_complete_maxsz)
872 #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \
873 encode_sequence_maxsz +\
874 encode_getdeviceinfo_maxsz)
875 #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \
876 decode_sequence_maxsz + \
877 decode_getdeviceinfo_maxsz)
878 #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \
879 encode_sequence_maxsz + \
880 encode_putfh_maxsz + \
881 encode_layoutget_maxsz)
882 #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \
883 decode_sequence_maxsz + \
884 decode_putfh_maxsz + \
885 decode_layoutget_maxsz)
886 #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \
887 encode_sequence_maxsz +\
888 encode_putfh_maxsz + \
889 encode_layoutcommit_maxsz + \
890 encode_getattr_maxsz)
891 #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \
892 decode_sequence_maxsz + \
893 decode_putfh_maxsz + \
894 decode_layoutcommit_maxsz + \
895 decode_getattr_maxsz)
896 #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \
897 encode_sequence_maxsz + \
898 encode_putfh_maxsz + \
899 encode_layoutreturn_maxsz)
900 #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \
901 decode_sequence_maxsz + \
902 decode_putfh_maxsz + \
903 decode_layoutreturn_maxsz)
904 #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \
905 encode_sequence_maxsz + \
906 encode_putrootfh_maxsz +\
907 encode_secinfo_no_name_maxsz)
908 #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \
909 decode_sequence_maxsz + \
910 decode_putrootfh_maxsz + \
911 decode_secinfo_no_name_maxsz)
912 #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \
913 encode_sequence_maxsz + \
914 encode_test_stateid_maxsz)
915 #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \
916 decode_sequence_maxsz + \
917 decode_test_stateid_maxsz)
918 #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \
919 encode_sequence_maxsz + \
920 encode_free_stateid_maxsz)
921 #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \
922 decode_sequence_maxsz + \
923 decode_free_stateid_maxsz)
925 const u32 nfs41_maxwrite_overhead
= ((RPC_MAX_HEADER_WITH_AUTH
+
926 compound_encode_hdr_maxsz
+
927 encode_sequence_maxsz
+
929 encode_getattr_maxsz
) *
932 const u32 nfs41_maxread_overhead
= ((RPC_MAX_HEADER_WITH_AUTH
+
933 compound_decode_hdr_maxsz
+
934 decode_sequence_maxsz
+
935 decode_putfh_maxsz
) *
938 const u32 nfs41_maxgetdevinfo_overhead
= ((RPC_MAX_REPHEADER_WITH_AUTH
+
939 compound_decode_hdr_maxsz
+
940 decode_sequence_maxsz
) *
942 EXPORT_SYMBOL_GPL(nfs41_maxgetdevinfo_overhead
);
943 #endif /* CONFIG_NFS_V4_1 */
945 static const umode_t nfs_type2fmt
[] = {
952 [NF4SOCK
] = S_IFSOCK
,
958 struct compound_hdr
{
964 uint32_t replen
; /* expected reply words */
968 static __be32
*reserve_space(struct xdr_stream
*xdr
, size_t nbytes
)
970 __be32
*p
= xdr_reserve_space(xdr
, nbytes
);
975 static void encode_string(struct xdr_stream
*xdr
, unsigned int len
, const char *str
)
977 WARN_ON_ONCE(xdr_stream_encode_opaque(xdr
, str
, len
) < 0);
980 static void encode_uint32(struct xdr_stream
*xdr
, u32 n
)
982 WARN_ON_ONCE(xdr_stream_encode_u32(xdr
, n
) < 0);
985 static void encode_uint64(struct xdr_stream
*xdr
, u64 n
)
987 WARN_ON_ONCE(xdr_stream_encode_u64(xdr
, n
) < 0);
990 static ssize_t
xdr_encode_bitmap4(struct xdr_stream
*xdr
,
991 const __u32
*bitmap
, size_t len
)
995 /* Trim empty words */
996 while (len
> 0 && bitmap
[len
-1] == 0)
998 ret
= xdr_stream_encode_uint32_array(xdr
, bitmap
, len
);
999 if (WARN_ON_ONCE(ret
< 0))
1004 static size_t mask_bitmap4(const __u32
*bitmap
, const __u32
*mask
,
1005 __u32
*res
, size_t len
)
1010 while (len
> 0 && (bitmap
[len
-1] == 0 || mask
[len
-1] == 0))
1012 for (i
= len
; i
-- > 0;) {
1013 tmp
= bitmap
[i
] & mask
[i
];
1019 static void encode_nfs4_seqid(struct xdr_stream
*xdr
,
1020 const struct nfs_seqid
*seqid
)
1023 encode_uint32(xdr
, seqid
->sequence
->counter
);
1025 encode_uint32(xdr
, 0);
1028 static void encode_compound_hdr(struct xdr_stream
*xdr
,
1029 struct rpc_rqst
*req
,
1030 struct compound_hdr
*hdr
)
1034 /* initialize running count of expected bytes in reply.
1035 * NOTE: the replied tag SHOULD be the same is the one sent,
1036 * but this is not required as a MUST for the server to do so. */
1037 hdr
->replen
= 3 + hdr
->taglen
;
1039 WARN_ON_ONCE(hdr
->taglen
> NFS4_MAXTAGLEN
);
1040 encode_string(xdr
, hdr
->taglen
, hdr
->tag
);
1041 p
= reserve_space(xdr
, 8);
1042 *p
++ = cpu_to_be32(hdr
->minorversion
);
1044 *p
= cpu_to_be32(hdr
->nops
);
1047 static void encode_op_hdr(struct xdr_stream
*xdr
, enum nfs_opnum4 op
,
1049 struct compound_hdr
*hdr
)
1051 encode_uint32(xdr
, op
);
1053 hdr
->replen
+= replen
;
1056 static void encode_nops(struct compound_hdr
*hdr
)
1058 WARN_ON_ONCE(hdr
->nops
> NFS4_MAX_OPS
);
1059 *hdr
->nops_p
= htonl(hdr
->nops
);
1062 static void encode_nfs4_stateid(struct xdr_stream
*xdr
,
1063 const nfs4_stateid
*stateid
)
1065 encode_opaque_fixed(xdr
, stateid
->data
, NFS4_STATEID_SIZE
);
1068 static void encode_nfs4_verifier(struct xdr_stream
*xdr
, const nfs4_verifier
*verf
)
1070 encode_opaque_fixed(xdr
, verf
->data
, NFS4_VERIFIER_SIZE
);
1074 xdr_encode_nfstime4(__be32
*p
, const struct timespec64
*t
)
1076 p
= xdr_encode_hyper(p
, t
->tv_sec
);
1077 *p
++ = cpu_to_be32(t
->tv_nsec
);
1081 static void encode_attrs(struct xdr_stream
*xdr
, const struct iattr
*iap
,
1082 const struct nfs4_label
*label
,
1083 const umode_t
*umask
,
1084 const struct nfs_server
*server
,
1085 const uint32_t attrmask
[])
1087 char owner_name
[IDMAP_NAMESZ
];
1088 char owner_group
[IDMAP_NAMESZ
];
1089 int owner_namelen
= 0;
1090 int owner_grouplen
= 0;
1093 uint32_t bmval
[3] = { 0 };
1096 * We reserve enough space to write the entire attribute buffer at once.
1098 if ((iap
->ia_valid
& ATTR_SIZE
) && (attrmask
[0] & FATTR4_WORD0_SIZE
)) {
1099 bmval
[0] |= FATTR4_WORD0_SIZE
;
1102 if (iap
->ia_valid
& ATTR_MODE
) {
1103 if (umask
&& (attrmask
[2] & FATTR4_WORD2_MODE_UMASK
)) {
1104 bmval
[2] |= FATTR4_WORD2_MODE_UMASK
;
1106 } else if (attrmask
[1] & FATTR4_WORD1_MODE
) {
1107 bmval
[1] |= FATTR4_WORD1_MODE
;
1111 if ((iap
->ia_valid
& ATTR_UID
) && (attrmask
[1] & FATTR4_WORD1_OWNER
)) {
1112 owner_namelen
= nfs_map_uid_to_name(server
, iap
->ia_uid
, owner_name
, IDMAP_NAMESZ
);
1113 if (owner_namelen
< 0) {
1114 dprintk("nfs: couldn't resolve uid %d to string\n",
1115 from_kuid(&init_user_ns
, iap
->ia_uid
));
1117 strcpy(owner_name
, "nobody");
1118 owner_namelen
= sizeof("nobody") - 1;
1121 bmval
[1] |= FATTR4_WORD1_OWNER
;
1122 len
+= 4 + (XDR_QUADLEN(owner_namelen
) << 2);
1124 if ((iap
->ia_valid
& ATTR_GID
) &&
1125 (attrmask
[1] & FATTR4_WORD1_OWNER_GROUP
)) {
1126 owner_grouplen
= nfs_map_gid_to_group(server
, iap
->ia_gid
, owner_group
, IDMAP_NAMESZ
);
1127 if (owner_grouplen
< 0) {
1128 dprintk("nfs: couldn't resolve gid %d to string\n",
1129 from_kgid(&init_user_ns
, iap
->ia_gid
));
1130 strcpy(owner_group
, "nobody");
1131 owner_grouplen
= sizeof("nobody") - 1;
1134 bmval
[1] |= FATTR4_WORD1_OWNER_GROUP
;
1135 len
+= 4 + (XDR_QUADLEN(owner_grouplen
) << 2);
1137 if (attrmask
[1] & FATTR4_WORD1_TIME_ACCESS_SET
) {
1138 if (iap
->ia_valid
& ATTR_ATIME_SET
) {
1139 bmval
[1] |= FATTR4_WORD1_TIME_ACCESS_SET
;
1140 len
+= 4 + (nfstime4_maxsz
<< 2);
1141 } else if (iap
->ia_valid
& ATTR_ATIME
) {
1142 bmval
[1] |= FATTR4_WORD1_TIME_ACCESS_SET
;
1146 if (attrmask
[1] & FATTR4_WORD1_TIME_MODIFY_SET
) {
1147 if (iap
->ia_valid
& ATTR_MTIME_SET
) {
1148 bmval
[1] |= FATTR4_WORD1_TIME_MODIFY_SET
;
1149 len
+= 4 + (nfstime4_maxsz
<< 2);
1150 } else if (iap
->ia_valid
& ATTR_MTIME
) {
1151 bmval
[1] |= FATTR4_WORD1_TIME_MODIFY_SET
;
1156 if (label
&& (attrmask
[2] & FATTR4_WORD2_SECURITY_LABEL
)) {
1157 len
+= 4 + 4 + 4 + (XDR_QUADLEN(label
->len
) << 2);
1158 bmval
[2] |= FATTR4_WORD2_SECURITY_LABEL
;
1161 xdr_encode_bitmap4(xdr
, bmval
, ARRAY_SIZE(bmval
));
1162 xdr_stream_encode_opaque_inline(xdr
, (void **)&p
, len
);
1164 if (bmval
[0] & FATTR4_WORD0_SIZE
)
1165 p
= xdr_encode_hyper(p
, iap
->ia_size
);
1166 if (bmval
[1] & FATTR4_WORD1_MODE
)
1167 *p
++ = cpu_to_be32(iap
->ia_mode
& S_IALLUGO
);
1168 if (bmval
[1] & FATTR4_WORD1_OWNER
)
1169 p
= xdr_encode_opaque(p
, owner_name
, owner_namelen
);
1170 if (bmval
[1] & FATTR4_WORD1_OWNER_GROUP
)
1171 p
= xdr_encode_opaque(p
, owner_group
, owner_grouplen
);
1172 if (bmval
[1] & FATTR4_WORD1_TIME_ACCESS_SET
) {
1173 if (iap
->ia_valid
& ATTR_ATIME_SET
) {
1174 *p
++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME
);
1175 p
= xdr_encode_nfstime4(p
, &iap
->ia_atime
);
1177 *p
++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME
);
1179 if (bmval
[1] & FATTR4_WORD1_TIME_MODIFY_SET
) {
1180 if (iap
->ia_valid
& ATTR_MTIME_SET
) {
1181 *p
++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME
);
1182 p
= xdr_encode_nfstime4(p
, &iap
->ia_mtime
);
1184 *p
++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME
);
1186 if (label
&& (bmval
[2] & FATTR4_WORD2_SECURITY_LABEL
)) {
1187 *p
++ = cpu_to_be32(label
->lfs
);
1188 *p
++ = cpu_to_be32(label
->pi
);
1189 *p
++ = cpu_to_be32(label
->len
);
1190 p
= xdr_encode_opaque_fixed(p
, label
->label
, label
->len
);
1192 if (bmval
[2] & FATTR4_WORD2_MODE_UMASK
) {
1193 *p
++ = cpu_to_be32(iap
->ia_mode
& S_IALLUGO
);
1194 *p
++ = cpu_to_be32(*umask
);
1200 static void encode_access(struct xdr_stream
*xdr
, u32 access
, struct compound_hdr
*hdr
)
1202 encode_op_hdr(xdr
, OP_ACCESS
, decode_access_maxsz
, hdr
);
1203 encode_uint32(xdr
, access
);
1206 static void encode_close(struct xdr_stream
*xdr
, const struct nfs_closeargs
*arg
, struct compound_hdr
*hdr
)
1208 encode_op_hdr(xdr
, OP_CLOSE
, decode_close_maxsz
, hdr
);
1209 encode_nfs4_seqid(xdr
, arg
->seqid
);
1210 encode_nfs4_stateid(xdr
, &arg
->stateid
);
1213 static void encode_commit(struct xdr_stream
*xdr
, const struct nfs_commitargs
*args
, struct compound_hdr
*hdr
)
1217 encode_op_hdr(xdr
, OP_COMMIT
, decode_commit_maxsz
, hdr
);
1218 p
= reserve_space(xdr
, 12);
1219 p
= xdr_encode_hyper(p
, args
->offset
);
1220 *p
= cpu_to_be32(args
->count
);
1223 static void encode_create(struct xdr_stream
*xdr
, const struct nfs4_create_arg
*create
, struct compound_hdr
*hdr
)
1227 encode_op_hdr(xdr
, OP_CREATE
, decode_create_maxsz
, hdr
);
1228 encode_uint32(xdr
, create
->ftype
);
1230 switch (create
->ftype
) {
1232 p
= reserve_space(xdr
, 4);
1233 *p
= cpu_to_be32(create
->u
.symlink
.len
);
1234 xdr_write_pages(xdr
, create
->u
.symlink
.pages
, 0,
1235 create
->u
.symlink
.len
);
1236 xdr
->buf
->flags
|= XDRBUF_WRITE
;
1239 case NF4BLK
: case NF4CHR
:
1240 p
= reserve_space(xdr
, 8);
1241 *p
++ = cpu_to_be32(create
->u
.device
.specdata1
);
1242 *p
= cpu_to_be32(create
->u
.device
.specdata2
);
1249 encode_string(xdr
, create
->name
->len
, create
->name
->name
);
1250 encode_attrs(xdr
, create
->attrs
, create
->label
, &create
->umask
,
1251 create
->server
, create
->server
->attr_bitmask
);
1254 static void encode_getattr(struct xdr_stream
*xdr
,
1255 const __u32
*bitmap
, const __u32
*mask
, size_t len
,
1256 struct compound_hdr
*hdr
)
1258 __u32 masked_bitmap
[nfs4_fattr_bitmap_maxsz
];
1260 encode_op_hdr(xdr
, OP_GETATTR
, decode_getattr_maxsz
, hdr
);
1262 if (WARN_ON_ONCE(len
> ARRAY_SIZE(masked_bitmap
)))
1263 len
= ARRAY_SIZE(masked_bitmap
);
1264 len
= mask_bitmap4(bitmap
, mask
, masked_bitmap
, len
);
1265 bitmap
= masked_bitmap
;
1267 xdr_encode_bitmap4(xdr
, bitmap
, len
);
1270 static void encode_getfattr(struct xdr_stream
*xdr
, const u32
* bitmask
, struct compound_hdr
*hdr
)
1272 encode_getattr(xdr
, nfs4_fattr_bitmap
, bitmask
,
1273 ARRAY_SIZE(nfs4_fattr_bitmap
), hdr
);
1276 static void encode_getfattr_open(struct xdr_stream
*xdr
, const u32
*bitmask
,
1277 const u32
*open_bitmap
,
1278 struct compound_hdr
*hdr
)
1280 encode_getattr(xdr
, open_bitmap
, bitmask
, 3, hdr
);
1283 static void encode_fsinfo(struct xdr_stream
*xdr
, const u32
* bitmask
, struct compound_hdr
*hdr
)
1285 encode_getattr(xdr
, nfs4_fsinfo_bitmap
, bitmask
,
1286 ARRAY_SIZE(nfs4_fsinfo_bitmap
), hdr
);
1289 static void encode_fs_locations(struct xdr_stream
*xdr
, const u32
* bitmask
, struct compound_hdr
*hdr
)
1291 encode_getattr(xdr
, nfs4_fs_locations_bitmap
, bitmask
,
1292 ARRAY_SIZE(nfs4_fs_locations_bitmap
), hdr
);
1295 static void encode_getfh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1297 encode_op_hdr(xdr
, OP_GETFH
, decode_getfh_maxsz
, hdr
);
1300 static void encode_link(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1302 encode_op_hdr(xdr
, OP_LINK
, decode_link_maxsz
, hdr
);
1303 encode_string(xdr
, name
->len
, name
->name
);
1306 static inline int nfs4_lock_type(struct file_lock
*fl
, int block
)
1308 if (lock_is_read(fl
))
1309 return block
? NFS4_READW_LT
: NFS4_READ_LT
;
1310 return block
? NFS4_WRITEW_LT
: NFS4_WRITE_LT
;
1313 static inline uint64_t nfs4_lock_length(struct file_lock
*fl
)
1315 if (fl
->fl_end
== OFFSET_MAX
)
1316 return ~(uint64_t)0;
1317 return fl
->fl_end
- fl
->fl_start
+ 1;
1320 static void encode_lockowner(struct xdr_stream
*xdr
, const struct nfs_lowner
*lowner
)
1324 p
= reserve_space(xdr
, 32);
1325 p
= xdr_encode_hyper(p
, lowner
->clientid
);
1326 *p
++ = cpu_to_be32(20);
1327 p
= xdr_encode_opaque_fixed(p
, "lock id:", 8);
1328 *p
++ = cpu_to_be32(lowner
->s_dev
);
1329 xdr_encode_hyper(p
, lowner
->id
);
1333 * opcode,type,reclaim,offset,length,new_lock_owner = 32
1334 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
1336 static void encode_lock(struct xdr_stream
*xdr
, const struct nfs_lock_args
*args
, struct compound_hdr
*hdr
)
1340 encode_op_hdr(xdr
, OP_LOCK
, decode_lock_maxsz
, hdr
);
1341 p
= reserve_space(xdr
, 28);
1342 *p
++ = cpu_to_be32(nfs4_lock_type(args
->fl
, args
->block
));
1343 *p
++ = cpu_to_be32(args
->reclaim
);
1344 p
= xdr_encode_hyper(p
, args
->fl
->fl_start
);
1345 p
= xdr_encode_hyper(p
, nfs4_lock_length(args
->fl
));
1346 *p
= cpu_to_be32(args
->new_lock_owner
);
1347 if (args
->new_lock_owner
){
1348 encode_nfs4_seqid(xdr
, args
->open_seqid
);
1349 encode_nfs4_stateid(xdr
, &args
->open_stateid
);
1350 encode_nfs4_seqid(xdr
, args
->lock_seqid
);
1351 encode_lockowner(xdr
, &args
->lock_owner
);
1354 encode_nfs4_stateid(xdr
, &args
->lock_stateid
);
1355 encode_nfs4_seqid(xdr
, args
->lock_seqid
);
1359 static void encode_lockt(struct xdr_stream
*xdr
, const struct nfs_lockt_args
*args
, struct compound_hdr
*hdr
)
1363 encode_op_hdr(xdr
, OP_LOCKT
, decode_lockt_maxsz
, hdr
);
1364 p
= reserve_space(xdr
, 20);
1365 *p
++ = cpu_to_be32(nfs4_lock_type(args
->fl
, 0));
1366 p
= xdr_encode_hyper(p
, args
->fl
->fl_start
);
1367 p
= xdr_encode_hyper(p
, nfs4_lock_length(args
->fl
));
1368 encode_lockowner(xdr
, &args
->lock_owner
);
1371 static void encode_locku(struct xdr_stream
*xdr
, const struct nfs_locku_args
*args
, struct compound_hdr
*hdr
)
1375 encode_op_hdr(xdr
, OP_LOCKU
, decode_locku_maxsz
, hdr
);
1376 encode_uint32(xdr
, nfs4_lock_type(args
->fl
, 0));
1377 encode_nfs4_seqid(xdr
, args
->seqid
);
1378 encode_nfs4_stateid(xdr
, &args
->stateid
);
1379 p
= reserve_space(xdr
, 16);
1380 p
= xdr_encode_hyper(p
, args
->fl
->fl_start
);
1381 xdr_encode_hyper(p
, nfs4_lock_length(args
->fl
));
1384 static void encode_release_lockowner(struct xdr_stream
*xdr
, const struct nfs_lowner
*lowner
, struct compound_hdr
*hdr
)
1386 encode_op_hdr(xdr
, OP_RELEASE_LOCKOWNER
, decode_release_lockowner_maxsz
, hdr
);
1387 encode_lockowner(xdr
, lowner
);
1390 static void encode_lookup(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1392 encode_op_hdr(xdr
, OP_LOOKUP
, decode_lookup_maxsz
, hdr
);
1393 encode_string(xdr
, name
->len
, name
->name
);
1396 static void encode_lookupp(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1398 encode_op_hdr(xdr
, OP_LOOKUPP
, decode_lookupp_maxsz
, hdr
);
1401 static void encode_share_access(struct xdr_stream
*xdr
, u32 share_access
)
1405 p
= reserve_space(xdr
, 8);
1406 *p
++ = cpu_to_be32(share_access
);
1407 *p
= cpu_to_be32(0); /* for linux, share_deny = 0 always */
1410 static inline void encode_openhdr(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
1414 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1417 encode_nfs4_seqid(xdr
, arg
->seqid
);
1418 encode_share_access(xdr
, arg
->share_access
);
1419 p
= reserve_space(xdr
, 40);
1420 p
= xdr_encode_hyper(p
, arg
->clientid
);
1421 *p
++ = cpu_to_be32(28);
1422 p
= xdr_encode_opaque_fixed(p
, "open id:", 8);
1423 *p
++ = cpu_to_be32(arg
->server
->s_dev
);
1424 p
= xdr_encode_hyper(p
, arg
->id
.uniquifier
);
1425 xdr_encode_hyper(p
, arg
->id
.create_time
);
1428 static inline void encode_createmode(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
1432 p
= reserve_space(xdr
, 4);
1433 switch(arg
->createmode
) {
1434 case NFS4_CREATE_UNCHECKED
:
1435 *p
= cpu_to_be32(NFS4_CREATE_UNCHECKED
);
1436 encode_attrs(xdr
, arg
->u
.attrs
, arg
->label
, &arg
->umask
,
1437 arg
->server
, arg
->server
->attr_bitmask
);
1439 case NFS4_CREATE_GUARDED
:
1440 *p
= cpu_to_be32(NFS4_CREATE_GUARDED
);
1441 encode_attrs(xdr
, arg
->u
.attrs
, arg
->label
, &arg
->umask
,
1442 arg
->server
, arg
->server
->attr_bitmask
);
1444 case NFS4_CREATE_EXCLUSIVE
:
1445 *p
= cpu_to_be32(NFS4_CREATE_EXCLUSIVE
);
1446 encode_nfs4_verifier(xdr
, &arg
->u
.verifier
);
1448 case NFS4_CREATE_EXCLUSIVE4_1
:
1449 *p
= cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1
);
1450 encode_nfs4_verifier(xdr
, &arg
->u
.verifier
);
1451 encode_attrs(xdr
, arg
->u
.attrs
, arg
->label
, &arg
->umask
,
1452 arg
->server
, arg
->server
->exclcreat_bitmask
);
1456 static void encode_opentype(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
)
1460 p
= reserve_space(xdr
, 4);
1461 switch (arg
->open_flags
& O_CREAT
) {
1463 *p
= cpu_to_be32(NFS4_OPEN_NOCREATE
);
1466 *p
= cpu_to_be32(NFS4_OPEN_CREATE
);
1467 encode_createmode(xdr
, arg
);
1471 static inline void encode_delegation_type(struct xdr_stream
*xdr
, u32 delegation_type
)
1475 p
= reserve_space(xdr
, 4);
1476 switch (delegation_type
) {
1477 case NFS4_OPEN_DELEGATE_NONE
:
1478 case NFS4_OPEN_DELEGATE_READ
:
1479 case NFS4_OPEN_DELEGATE_WRITE
:
1480 case NFS4_OPEN_DELEGATE_READ_ATTRS_DELEG
:
1481 case NFS4_OPEN_DELEGATE_WRITE_ATTRS_DELEG
:
1482 *p
= cpu_to_be32(delegation_type
);
1489 static inline void encode_claim_null(struct xdr_stream
*xdr
, const struct qstr
*name
)
1493 p
= reserve_space(xdr
, 4);
1494 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_NULL
);
1495 encode_string(xdr
, name
->len
, name
->name
);
1498 static inline void encode_claim_previous(struct xdr_stream
*xdr
, u32 type
)
1502 p
= reserve_space(xdr
, 4);
1503 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS
);
1504 encode_delegation_type(xdr
, type
);
1507 static inline void encode_claim_delegate_cur(struct xdr_stream
*xdr
, const struct qstr
*name
, const nfs4_stateid
*stateid
)
1511 p
= reserve_space(xdr
, 4);
1512 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR
);
1513 encode_nfs4_stateid(xdr
, stateid
);
1514 encode_string(xdr
, name
->len
, name
->name
);
1517 static inline void encode_claim_fh(struct xdr_stream
*xdr
)
1521 p
= reserve_space(xdr
, 4);
1522 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_FH
);
1525 static inline void encode_claim_delegate_cur_fh(struct xdr_stream
*xdr
, const nfs4_stateid
*stateid
)
1529 p
= reserve_space(xdr
, 4);
1530 *p
= cpu_to_be32(NFS4_OPEN_CLAIM_DELEG_CUR_FH
);
1531 encode_nfs4_stateid(xdr
, stateid
);
1534 static void encode_open(struct xdr_stream
*xdr
, const struct nfs_openargs
*arg
, struct compound_hdr
*hdr
)
1536 encode_op_hdr(xdr
, OP_OPEN
, decode_open_maxsz
, hdr
);
1537 encode_openhdr(xdr
, arg
);
1538 encode_opentype(xdr
, arg
);
1539 switch (arg
->claim
) {
1540 case NFS4_OPEN_CLAIM_NULL
:
1541 encode_claim_null(xdr
, arg
->name
);
1543 case NFS4_OPEN_CLAIM_PREVIOUS
:
1544 encode_claim_previous(xdr
, arg
->u
.delegation_type
);
1546 case NFS4_OPEN_CLAIM_DELEGATE_CUR
:
1547 encode_claim_delegate_cur(xdr
, arg
->name
, &arg
->u
.delegation
);
1549 case NFS4_OPEN_CLAIM_FH
:
1550 encode_claim_fh(xdr
);
1552 case NFS4_OPEN_CLAIM_DELEG_CUR_FH
:
1553 encode_claim_delegate_cur_fh(xdr
, &arg
->u
.delegation
);
1560 static void encode_open_confirm(struct xdr_stream
*xdr
, const struct nfs_open_confirmargs
*arg
, struct compound_hdr
*hdr
)
1562 encode_op_hdr(xdr
, OP_OPEN_CONFIRM
, decode_open_confirm_maxsz
, hdr
);
1563 encode_nfs4_stateid(xdr
, arg
->stateid
);
1564 encode_nfs4_seqid(xdr
, arg
->seqid
);
1567 static void encode_open_downgrade(struct xdr_stream
*xdr
, const struct nfs_closeargs
*arg
, struct compound_hdr
*hdr
)
1569 encode_op_hdr(xdr
, OP_OPEN_DOWNGRADE
, decode_open_downgrade_maxsz
, hdr
);
1570 encode_nfs4_stateid(xdr
, &arg
->stateid
);
1571 encode_nfs4_seqid(xdr
, arg
->seqid
);
1572 encode_share_access(xdr
, arg
->share_access
);
1576 encode_putfh(struct xdr_stream
*xdr
, const struct nfs_fh
*fh
, struct compound_hdr
*hdr
)
1578 encode_op_hdr(xdr
, OP_PUTFH
, decode_putfh_maxsz
, hdr
);
1579 encode_string(xdr
, fh
->size
, fh
->data
);
1582 static void encode_putrootfh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1584 encode_op_hdr(xdr
, OP_PUTROOTFH
, decode_putrootfh_maxsz
, hdr
);
1587 static void encode_read(struct xdr_stream
*xdr
, const struct nfs_pgio_args
*args
,
1588 struct compound_hdr
*hdr
)
1592 encode_op_hdr(xdr
, OP_READ
, decode_read_maxsz
, hdr
);
1593 encode_nfs4_stateid(xdr
, &args
->stateid
);
1595 p
= reserve_space(xdr
, 12);
1596 p
= xdr_encode_hyper(p
, args
->offset
);
1597 *p
= cpu_to_be32(args
->count
);
1600 static void encode_readdir(struct xdr_stream
*xdr
, const struct nfs4_readdir_arg
*readdir
, struct rpc_rqst
*req
, struct compound_hdr
*hdr
)
1602 uint32_t attrs
[3] = {
1604 | FATTR4_WORD0_RDATTR_ERROR
,
1605 FATTR4_WORD1_MOUNTED_ON_FILEID
,
1607 uint32_t dircount
= readdir
->count
;
1608 uint32_t maxcount
= readdir
->count
;
1610 uint32_t attrlen
= 0;
1613 if (readdir
->plus
) {
1614 attrs
[0] |= FATTR4_WORD0_CHANGE
1617 | FATTR4_WORD0_FILEHANDLE
1618 | FATTR4_WORD0_FILEID
;
1619 attrs
[1] |= FATTR4_WORD1_MODE
1620 | FATTR4_WORD1_NUMLINKS
1621 | FATTR4_WORD1_OWNER
1622 | FATTR4_WORD1_OWNER_GROUP
1623 | FATTR4_WORD1_RAWDEV
1624 | FATTR4_WORD1_SPACE_USED
1625 | FATTR4_WORD1_TIME_ACCESS
1626 | FATTR4_WORD1_TIME_METADATA
1627 | FATTR4_WORD1_TIME_MODIFY
;
1628 attrs
[2] |= FATTR4_WORD2_SECURITY_LABEL
;
1630 /* Use mounted_on_fileid only if the server supports it */
1631 if (!(readdir
->bitmask
[1] & FATTR4_WORD1_MOUNTED_ON_FILEID
))
1632 attrs
[0] |= FATTR4_WORD0_FILEID
;
1633 for (i
= 0; i
< ARRAY_SIZE(attrs
); i
++) {
1634 attrs
[i
] &= readdir
->bitmask
[i
];
1639 encode_op_hdr(xdr
, OP_READDIR
, decode_readdir_maxsz
, hdr
);
1640 encode_uint64(xdr
, readdir
->cookie
);
1641 encode_nfs4_verifier(xdr
, &readdir
->verifier
);
1642 p
= reserve_space(xdr
, 12 + (attrlen
<< 2));
1643 *p
++ = cpu_to_be32(dircount
);
1644 *p
++ = cpu_to_be32(maxcount
);
1645 *p
++ = cpu_to_be32(attrlen
);
1646 for (i
= 0; i
< attrlen
; i
++)
1647 *p
++ = cpu_to_be32(attrs
[i
]);
1648 memcpy(verf
, readdir
->verifier
.data
, sizeof(verf
));
1650 dprintk("%s: cookie = %llu, verifier = %08x:%08x, bitmap = %08x:%08x:%08x\n",
1652 (unsigned long long)readdir
->cookie
,
1654 attrs
[0] & readdir
->bitmask
[0],
1655 attrs
[1] & readdir
->bitmask
[1],
1656 attrs
[2] & readdir
->bitmask
[2]);
1659 static void encode_readlink(struct xdr_stream
*xdr
, const struct nfs4_readlink
*readlink
, struct rpc_rqst
*req
, struct compound_hdr
*hdr
)
1661 encode_op_hdr(xdr
, OP_READLINK
, decode_readlink_maxsz
, hdr
);
1664 static void encode_remove(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1666 encode_op_hdr(xdr
, OP_REMOVE
, decode_remove_maxsz
, hdr
);
1667 encode_string(xdr
, name
->len
, name
->name
);
1670 static void encode_rename(struct xdr_stream
*xdr
, const struct qstr
*oldname
, const struct qstr
*newname
, struct compound_hdr
*hdr
)
1672 encode_op_hdr(xdr
, OP_RENAME
, decode_rename_maxsz
, hdr
);
1673 encode_string(xdr
, oldname
->len
, oldname
->name
);
1674 encode_string(xdr
, newname
->len
, newname
->name
);
1677 static void encode_renew(struct xdr_stream
*xdr
, clientid4 clid
,
1678 struct compound_hdr
*hdr
)
1680 encode_op_hdr(xdr
, OP_RENEW
, decode_renew_maxsz
, hdr
);
1681 encode_uint64(xdr
, clid
);
1685 encode_restorefh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1687 encode_op_hdr(xdr
, OP_RESTOREFH
, decode_restorefh_maxsz
, hdr
);
1690 static void nfs4_acltype_to_bitmap(enum nfs4_acl_type type
, __u32 bitmap
[2])
1694 bitmap
[0] = FATTR4_WORD0_ACL
;
1699 bitmap
[1] = FATTR4_WORD1_DACL
;
1703 bitmap
[1] = FATTR4_WORD1_SACL
;
1707 static void encode_setacl(struct xdr_stream
*xdr
,
1708 const struct nfs_setaclargs
*arg
,
1709 struct compound_hdr
*hdr
)
1713 nfs4_acltype_to_bitmap(arg
->acl_type
, bitmap
);
1715 encode_op_hdr(xdr
, OP_SETATTR
, decode_setacl_maxsz
, hdr
);
1716 encode_nfs4_stateid(xdr
, &zero_stateid
);
1717 xdr_encode_bitmap4(xdr
, bitmap
, ARRAY_SIZE(bitmap
));
1718 encode_uint32(xdr
, arg
->acl_len
);
1719 xdr_write_pages(xdr
, arg
->acl_pages
, 0, arg
->acl_len
);
1723 encode_savefh(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
1725 encode_op_hdr(xdr
, OP_SAVEFH
, decode_savefh_maxsz
, hdr
);
1728 static void encode_setattr(struct xdr_stream
*xdr
, const struct nfs_setattrargs
*arg
, const struct nfs_server
*server
, struct compound_hdr
*hdr
)
1730 encode_op_hdr(xdr
, OP_SETATTR
, decode_setattr_maxsz
, hdr
);
1731 encode_nfs4_stateid(xdr
, &arg
->stateid
);
1732 encode_attrs(xdr
, arg
->iap
, arg
->label
, NULL
, server
,
1733 server
->attr_bitmask
);
1736 static void encode_delegattr(struct xdr_stream
*xdr
,
1737 const nfs4_stateid
*stateid
,
1738 const struct nfs4_delegattr
*attr
,
1739 struct compound_hdr
*hdr
)
1741 uint32_t bitmap
[3] = { 0 };
1745 encode_op_hdr(xdr
, OP_SETATTR
, encode_delegattr_maxsz
, hdr
);
1746 encode_nfs4_stateid(xdr
, stateid
);
1747 if (attr
->atime_set
) {
1748 bitmap
[2] |= FATTR4_WORD2_TIME_DELEG_ACCESS
;
1749 len
+= (nfstime4_maxsz
<< 2);
1751 if (attr
->mtime_set
) {
1752 bitmap
[2] |= FATTR4_WORD2_TIME_DELEG_MODIFY
;
1753 len
+= (nfstime4_maxsz
<< 2);
1755 xdr_encode_bitmap4(xdr
, bitmap
, ARRAY_SIZE(bitmap
));
1756 xdr_stream_encode_opaque_inline(xdr
, (void **)&p
, len
);
1757 if (bitmap
[2] & FATTR4_WORD2_TIME_DELEG_ACCESS
)
1758 p
= xdr_encode_nfstime4(p
, &attr
->atime
);
1759 if (bitmap
[2] & FATTR4_WORD2_TIME_DELEG_MODIFY
)
1760 p
= xdr_encode_nfstime4(p
, &attr
->mtime
);
1763 static void encode_setclientid(struct xdr_stream
*xdr
, const struct nfs4_setclientid
*setclientid
, struct compound_hdr
*hdr
)
1767 encode_op_hdr(xdr
, OP_SETCLIENTID
, decode_setclientid_maxsz
, hdr
);
1768 encode_nfs4_verifier(xdr
, setclientid
->sc_verifier
);
1770 encode_string(xdr
, strlen(setclientid
->sc_clnt
->cl_owner_id
),
1771 setclientid
->sc_clnt
->cl_owner_id
);
1772 p
= reserve_space(xdr
, 4);
1773 *p
= cpu_to_be32(setclientid
->sc_prog
);
1774 encode_string(xdr
, setclientid
->sc_netid_len
, setclientid
->sc_netid
);
1775 encode_string(xdr
, setclientid
->sc_uaddr_len
, setclientid
->sc_uaddr
);
1776 p
= reserve_space(xdr
, 4);
1777 *p
= cpu_to_be32(setclientid
->sc_clnt
->cl_cb_ident
);
1780 static void encode_setclientid_confirm(struct xdr_stream
*xdr
, const struct nfs4_setclientid_res
*arg
, struct compound_hdr
*hdr
)
1782 encode_op_hdr(xdr
, OP_SETCLIENTID_CONFIRM
,
1783 decode_setclientid_confirm_maxsz
, hdr
);
1784 encode_uint64(xdr
, arg
->clientid
);
1785 encode_nfs4_verifier(xdr
, &arg
->confirm
);
1788 static void encode_write(struct xdr_stream
*xdr
, const struct nfs_pgio_args
*args
,
1789 struct compound_hdr
*hdr
)
1793 encode_op_hdr(xdr
, OP_WRITE
, decode_write_maxsz
, hdr
);
1794 encode_nfs4_stateid(xdr
, &args
->stateid
);
1796 p
= reserve_space(xdr
, 16);
1797 p
= xdr_encode_hyper(p
, args
->offset
);
1798 *p
++ = cpu_to_be32(args
->stable
);
1799 *p
= cpu_to_be32(args
->count
);
1801 xdr_write_pages(xdr
, args
->pages
, args
->pgbase
, args
->count
);
1804 static void encode_delegreturn(struct xdr_stream
*xdr
, const nfs4_stateid
*stateid
, struct compound_hdr
*hdr
)
1806 encode_op_hdr(xdr
, OP_DELEGRETURN
, decode_delegreturn_maxsz
, hdr
);
1807 encode_nfs4_stateid(xdr
, stateid
);
1810 static void encode_secinfo(struct xdr_stream
*xdr
, const struct qstr
*name
, struct compound_hdr
*hdr
)
1812 encode_op_hdr(xdr
, OP_SECINFO
, decode_secinfo_maxsz
, hdr
);
1813 encode_string(xdr
, name
->len
, name
->name
);
1816 #if defined(CONFIG_NFS_V4_1)
1817 /* NFSv4.1 operations */
1818 static void encode_bind_conn_to_session(struct xdr_stream
*xdr
,
1819 const struct nfs41_bind_conn_to_session_args
*args
,
1820 struct compound_hdr
*hdr
)
1824 encode_op_hdr(xdr
, OP_BIND_CONN_TO_SESSION
,
1825 decode_bind_conn_to_session_maxsz
, hdr
);
1826 encode_opaque_fixed(xdr
, args
->sessionid
.data
, NFS4_MAX_SESSIONID_LEN
);
1827 p
= xdr_reserve_space(xdr
, 8);
1828 *p
++ = cpu_to_be32(args
->dir
);
1829 *p
= (args
->use_conn_in_rdma_mode
) ? cpu_to_be32(1) : cpu_to_be32(0);
1832 static void encode_op_map(struct xdr_stream
*xdr
, const struct nfs4_op_map
*op_map
)
1835 encode_uint32(xdr
, NFS4_OP_MAP_NUM_WORDS
);
1836 for (i
= 0; i
< NFS4_OP_MAP_NUM_WORDS
; i
++)
1837 encode_uint32(xdr
, op_map
->u
.words
[i
]);
1840 static void encode_exchange_id(struct xdr_stream
*xdr
,
1841 const struct nfs41_exchange_id_args
*args
,
1842 struct compound_hdr
*hdr
)
1845 char impl_name
[IMPL_NAME_LIMIT
];
1848 encode_op_hdr(xdr
, OP_EXCHANGE_ID
, decode_exchange_id_maxsz
, hdr
);
1849 encode_nfs4_verifier(xdr
, &args
->verifier
);
1851 encode_string(xdr
, strlen(args
->client
->cl_owner_id
),
1852 args
->client
->cl_owner_id
);
1854 encode_uint32(xdr
, args
->flags
);
1855 encode_uint32(xdr
, args
->state_protect
.how
);
1857 switch (args
->state_protect
.how
) {
1861 encode_op_map(xdr
, &args
->state_protect
.enforce
);
1862 encode_op_map(xdr
, &args
->state_protect
.allow
);
1869 if (send_implementation_id
&&
1870 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
) > 1 &&
1871 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
)
1872 <= sizeof(impl_name
) + 1)
1873 len
= snprintf(impl_name
, sizeof(impl_name
), "%s %s %s %s",
1874 utsname()->sysname
, utsname()->release
,
1875 utsname()->version
, utsname()->machine
);
1878 encode_uint32(xdr
, 1); /* implementation id array length=1 */
1881 sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
) - 1,
1882 CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
);
1883 encode_string(xdr
, len
, impl_name
);
1884 /* just send zeros for nii_date - the date is in nii_name */
1885 p
= reserve_space(xdr
, 12);
1886 p
= xdr_encode_hyper(p
, 0);
1887 *p
= cpu_to_be32(0);
1889 encode_uint32(xdr
, 0); /* implementation id array length=0 */
1892 static void encode_create_session(struct xdr_stream
*xdr
,
1893 const struct nfs41_create_session_args
*args
,
1894 struct compound_hdr
*hdr
)
1897 struct nfs_client
*clp
= args
->client
;
1898 struct rpc_clnt
*clnt
= clp
->cl_rpcclient
;
1899 struct nfs_net
*nn
= net_generic(clp
->cl_net
, nfs_net_id
);
1900 u32 max_resp_sz_cached
;
1903 * Assumes OPEN is the biggest non-idempotent compound.
1904 * 2 is the verifier.
1906 max_resp_sz_cached
= (NFS4_dec_open_sz
+ RPC_REPHDRSIZE
+ 2)
1907 * XDR_UNIT
+ RPC_MAX_AUTH_SIZE
;
1909 encode_op_hdr(xdr
, OP_CREATE_SESSION
, decode_create_session_maxsz
, hdr
);
1910 p
= reserve_space(xdr
, 16 + 2*28 + 20 + clnt
->cl_nodelen
+ 12);
1911 p
= xdr_encode_hyper(p
, args
->clientid
);
1912 *p
++ = cpu_to_be32(args
->seqid
); /*Sequence id */
1913 *p
++ = cpu_to_be32(args
->flags
); /*flags */
1916 *p
++ = cpu_to_be32(0); /* header padding size */
1917 *p
++ = cpu_to_be32(args
->fc_attrs
.max_rqst_sz
); /* max req size */
1918 *p
++ = cpu_to_be32(args
->fc_attrs
.max_resp_sz
); /* max resp size */
1919 *p
++ = cpu_to_be32(max_resp_sz_cached
); /* Max resp sz cached */
1920 *p
++ = cpu_to_be32(args
->fc_attrs
.max_ops
); /* max operations */
1921 *p
++ = cpu_to_be32(args
->fc_attrs
.max_reqs
); /* max requests */
1922 *p
++ = cpu_to_be32(0); /* rdmachannel_attrs */
1925 *p
++ = cpu_to_be32(0); /* header padding size */
1926 *p
++ = cpu_to_be32(args
->bc_attrs
.max_rqst_sz
); /* max req size */
1927 *p
++ = cpu_to_be32(args
->bc_attrs
.max_resp_sz
); /* max resp size */
1928 *p
++ = cpu_to_be32(args
->bc_attrs
.max_resp_sz_cached
); /* Max resp sz cached */
1929 *p
++ = cpu_to_be32(args
->bc_attrs
.max_ops
); /* max operations */
1930 *p
++ = cpu_to_be32(args
->bc_attrs
.max_reqs
); /* max requests */
1931 *p
++ = cpu_to_be32(0); /* rdmachannel_attrs */
1933 *p
++ = cpu_to_be32(args
->cb_program
); /* cb_program */
1934 *p
++ = cpu_to_be32(1);
1935 *p
++ = cpu_to_be32(RPC_AUTH_UNIX
); /* auth_sys */
1937 /* authsys_parms rfc1831 */
1938 *p
++ = cpu_to_be32(ktime_to_ns(nn
->boot_time
)); /* stamp */
1939 p
= xdr_encode_array(p
, clnt
->cl_nodename
, clnt
->cl_nodelen
);
1940 *p
++ = cpu_to_be32(0); /* UID */
1941 *p
++ = cpu_to_be32(0); /* GID */
1942 *p
= cpu_to_be32(0); /* No more gids */
1945 static void encode_destroy_session(struct xdr_stream
*xdr
,
1946 const struct nfs4_session
*session
,
1947 struct compound_hdr
*hdr
)
1949 encode_op_hdr(xdr
, OP_DESTROY_SESSION
, decode_destroy_session_maxsz
, hdr
);
1950 encode_opaque_fixed(xdr
, session
->sess_id
.data
, NFS4_MAX_SESSIONID_LEN
);
1953 static void encode_destroy_clientid(struct xdr_stream
*xdr
,
1955 struct compound_hdr
*hdr
)
1957 encode_op_hdr(xdr
, OP_DESTROY_CLIENTID
, decode_destroy_clientid_maxsz
, hdr
);
1958 encode_uint64(xdr
, clientid
);
1961 static void encode_reclaim_complete(struct xdr_stream
*xdr
,
1962 const struct nfs41_reclaim_complete_args
*args
,
1963 struct compound_hdr
*hdr
)
1965 encode_op_hdr(xdr
, OP_RECLAIM_COMPLETE
, decode_reclaim_complete_maxsz
, hdr
);
1966 encode_uint32(xdr
, args
->one_fs
);
1968 #endif /* CONFIG_NFS_V4_1 */
1970 static void encode_sequence(struct xdr_stream
*xdr
,
1971 const struct nfs4_sequence_args
*args
,
1972 struct compound_hdr
*hdr
)
1974 #if defined(CONFIG_NFS_V4_1)
1975 struct nfs4_session
*session
;
1976 struct nfs4_slot_table
*tp
;
1977 struct nfs4_slot
*slot
= args
->sa_slot
;
1981 session
= tp
->session
;
1985 encode_op_hdr(xdr
, OP_SEQUENCE
, decode_sequence_maxsz
, hdr
);
1988 * Sessionid + seqid + slotid + max slotid + cache_this
1990 dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
1991 "max_slotid=%d cache_this=%d\n",
1993 ((u32
*)session
->sess_id
.data
)[0],
1994 ((u32
*)session
->sess_id
.data
)[1],
1995 ((u32
*)session
->sess_id
.data
)[2],
1996 ((u32
*)session
->sess_id
.data
)[3],
1997 slot
->seq_nr
, slot
->slot_nr
,
1998 tp
->highest_used_slotid
, args
->sa_cache_this
);
1999 p
= reserve_space(xdr
, NFS4_MAX_SESSIONID_LEN
+ 16);
2000 p
= xdr_encode_opaque_fixed(p
, session
->sess_id
.data
, NFS4_MAX_SESSIONID_LEN
);
2001 *p
++ = cpu_to_be32(slot
->seq_nr
);
2002 *p
++ = cpu_to_be32(slot
->slot_nr
);
2003 *p
++ = cpu_to_be32(tp
->highest_used_slotid
);
2004 *p
= cpu_to_be32(args
->sa_cache_this
);
2005 #endif /* CONFIG_NFS_V4_1 */
2008 #ifdef CONFIG_NFS_V4_1
2010 encode_getdeviceinfo(struct xdr_stream
*xdr
,
2011 const struct nfs4_getdeviceinfo_args
*args
,
2012 struct compound_hdr
*hdr
)
2016 encode_op_hdr(xdr
, OP_GETDEVICEINFO
, decode_getdeviceinfo_maxsz
, hdr
);
2017 p
= reserve_space(xdr
, NFS4_DEVICEID4_SIZE
+ 4 + 4);
2018 p
= xdr_encode_opaque_fixed(p
, args
->pdev
->dev_id
.data
,
2019 NFS4_DEVICEID4_SIZE
);
2020 *p
++ = cpu_to_be32(args
->pdev
->layout_type
);
2021 *p
++ = cpu_to_be32(args
->pdev
->maxcount
); /* gdia_maxcount */
2023 p
= reserve_space(xdr
, 4 + 4);
2024 *p
++ = cpu_to_be32(1); /* bitmap length */
2025 *p
++ = cpu_to_be32(args
->notify_types
);
2029 encode_layoutget(struct xdr_stream
*xdr
,
2030 const struct nfs4_layoutget_args
*args
,
2031 struct compound_hdr
*hdr
)
2035 encode_op_hdr(xdr
, OP_LAYOUTGET
, decode_layoutget_maxsz
, hdr
);
2036 p
= reserve_space(xdr
, 36);
2037 *p
++ = cpu_to_be32(0); /* Signal layout available */
2038 *p
++ = cpu_to_be32(args
->type
);
2039 *p
++ = cpu_to_be32(args
->range
.iomode
);
2040 p
= xdr_encode_hyper(p
, args
->range
.offset
);
2041 p
= xdr_encode_hyper(p
, args
->range
.length
);
2042 p
= xdr_encode_hyper(p
, args
->minlength
);
2043 encode_nfs4_stateid(xdr
, &args
->stateid
);
2044 encode_uint32(xdr
, args
->maxcount
);
2046 dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n",
2050 (unsigned long)args
->range
.offset
,
2051 (unsigned long)args
->range
.length
,
2056 encode_layoutcommit(struct xdr_stream
*xdr
,
2057 struct inode
*inode
,
2058 const struct nfs4_layoutcommit_args
*args
,
2059 struct compound_hdr
*hdr
)
2063 dprintk("%s: lbw: %llu type: %d\n", __func__
, args
->lastbytewritten
,
2064 NFS_SERVER(args
->inode
)->pnfs_curr_ld
->id
);
2066 encode_op_hdr(xdr
, OP_LAYOUTCOMMIT
, decode_layoutcommit_maxsz
, hdr
);
2067 p
= reserve_space(xdr
, 20);
2068 /* Only whole file layouts */
2069 p
= xdr_encode_hyper(p
, 0); /* offset */
2070 p
= xdr_encode_hyper(p
, args
->lastbytewritten
+ 1); /* length */
2071 *p
= cpu_to_be32(0); /* reclaim */
2072 encode_nfs4_stateid(xdr
, &args
->stateid
);
2073 if (args
->lastbytewritten
!= U64_MAX
) {
2074 p
= reserve_space(xdr
, 20);
2075 *p
++ = cpu_to_be32(1); /* newoffset = TRUE */
2076 p
= xdr_encode_hyper(p
, args
->lastbytewritten
);
2078 p
= reserve_space(xdr
, 12);
2079 *p
++ = cpu_to_be32(0); /* newoffset = FALSE */
2081 *p
++ = cpu_to_be32(0); /* Never send time_modify_changed */
2082 *p
++ = cpu_to_be32(NFS_SERVER(args
->inode
)->pnfs_curr_ld
->id
);/* type */
2084 encode_uint32(xdr
, args
->layoutupdate_len
);
2085 if (args
->layoutupdate_pages
)
2086 xdr_write_pages(xdr
, args
->layoutupdate_pages
, 0,
2087 args
->layoutupdate_len
);
2093 encode_layoutreturn(struct xdr_stream
*xdr
,
2094 const struct nfs4_layoutreturn_args
*args
,
2095 struct compound_hdr
*hdr
)
2099 encode_op_hdr(xdr
, OP_LAYOUTRETURN
, decode_layoutreturn_maxsz
, hdr
);
2100 p
= reserve_space(xdr
, 16);
2101 *p
++ = cpu_to_be32(0); /* reclaim. always 0 for now */
2102 *p
++ = cpu_to_be32(args
->layout_type
);
2103 *p
++ = cpu_to_be32(args
->range
.iomode
);
2104 *p
= cpu_to_be32(RETURN_FILE
);
2105 p
= reserve_space(xdr
, 16);
2106 p
= xdr_encode_hyper(p
, args
->range
.offset
);
2107 p
= xdr_encode_hyper(p
, args
->range
.length
);
2108 spin_lock(&args
->inode
->i_lock
);
2109 encode_nfs4_stateid(xdr
, &args
->stateid
);
2110 spin_unlock(&args
->inode
->i_lock
);
2111 if (args
->ld_private
->ops
&& args
->ld_private
->ops
->encode
)
2112 args
->ld_private
->ops
->encode(xdr
, args
, args
->ld_private
);
2114 encode_uint32(xdr
, 0);
2118 encode_secinfo_no_name(struct xdr_stream
*xdr
,
2119 const struct nfs41_secinfo_no_name_args
*args
,
2120 struct compound_hdr
*hdr
)
2122 encode_op_hdr(xdr
, OP_SECINFO_NO_NAME
, decode_secinfo_no_name_maxsz
, hdr
);
2123 encode_uint32(xdr
, args
->style
);
2127 static void encode_test_stateid(struct xdr_stream
*xdr
,
2128 const struct nfs41_test_stateid_args
*args
,
2129 struct compound_hdr
*hdr
)
2131 encode_op_hdr(xdr
, OP_TEST_STATEID
, decode_test_stateid_maxsz
, hdr
);
2132 encode_uint32(xdr
, 1);
2133 encode_nfs4_stateid(xdr
, &args
->stateid
);
2136 static void encode_free_stateid(struct xdr_stream
*xdr
,
2137 const struct nfs41_free_stateid_args
*args
,
2138 struct compound_hdr
*hdr
)
2140 encode_op_hdr(xdr
, OP_FREE_STATEID
, decode_free_stateid_maxsz
, hdr
);
2141 encode_nfs4_stateid(xdr
, &args
->stateid
);
2145 encode_layoutreturn(struct xdr_stream
*xdr
,
2146 const struct nfs4_layoutreturn_args
*args
,
2147 struct compound_hdr
*hdr
)
2152 encode_layoutget(struct xdr_stream
*xdr
,
2153 const struct nfs4_layoutget_args
*args
,
2154 struct compound_hdr
*hdr
)
2157 #endif /* CONFIG_NFS_V4_1 */
2160 * END OF "GENERIC" ENCODE ROUTINES.
2163 static u32
nfs4_xdr_minorversion(const struct nfs4_sequence_args
*args
)
2165 #if defined(CONFIG_NFS_V4_1)
2166 struct nfs4_session
*session
= args
->sa_slot
->table
->session
;
2168 return session
->clp
->cl_mvops
->minor_version
;
2169 #endif /* CONFIG_NFS_V4_1 */
2174 * Encode an ACCESS request
2176 static void nfs4_xdr_enc_access(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2179 const struct nfs4_accessargs
*args
= data
;
2180 struct compound_hdr hdr
= {
2181 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2184 encode_compound_hdr(xdr
, req
, &hdr
);
2185 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2186 encode_putfh(xdr
, args
->fh
, &hdr
);
2187 encode_access(xdr
, args
->access
, &hdr
);
2189 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2194 * Encode LOOKUP request
2196 static void nfs4_xdr_enc_lookup(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2199 const struct nfs4_lookup_arg
*args
= data
;
2200 struct compound_hdr hdr
= {
2201 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2204 encode_compound_hdr(xdr
, req
, &hdr
);
2205 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2206 encode_putfh(xdr
, args
->dir_fh
, &hdr
);
2207 encode_lookup(xdr
, args
->name
, &hdr
);
2208 encode_getfh(xdr
, &hdr
);
2209 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2214 * Encode LOOKUPP request
2216 static void nfs4_xdr_enc_lookupp(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2219 const struct nfs4_lookupp_arg
*args
= data
;
2220 struct compound_hdr hdr
= {
2221 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2224 encode_compound_hdr(xdr
, req
, &hdr
);
2225 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2226 encode_putfh(xdr
, args
->fh
, &hdr
);
2227 encode_lookupp(xdr
, &hdr
);
2228 encode_getfh(xdr
, &hdr
);
2229 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2234 * Encode LOOKUP_ROOT request
2236 static void nfs4_xdr_enc_lookup_root(struct rpc_rqst
*req
,
2237 struct xdr_stream
*xdr
,
2240 const struct nfs4_lookup_root_arg
*args
= data
;
2241 struct compound_hdr hdr
= {
2242 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2245 encode_compound_hdr(xdr
, req
, &hdr
);
2246 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2247 encode_putrootfh(xdr
, &hdr
);
2248 encode_getfh(xdr
, &hdr
);
2249 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2254 * Encode REMOVE request
2256 static void nfs4_xdr_enc_remove(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2259 const struct nfs_removeargs
*args
= data
;
2260 struct compound_hdr hdr
= {
2261 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2264 encode_compound_hdr(xdr
, req
, &hdr
);
2265 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2266 encode_putfh(xdr
, args
->fh
, &hdr
);
2267 encode_remove(xdr
, &args
->name
, &hdr
);
2272 * Encode RENAME request
2274 static void nfs4_xdr_enc_rename(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2277 const struct nfs_renameargs
*args
= data
;
2278 struct compound_hdr hdr
= {
2279 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2282 encode_compound_hdr(xdr
, req
, &hdr
);
2283 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2284 encode_putfh(xdr
, args
->old_dir
, &hdr
);
2285 encode_savefh(xdr
, &hdr
);
2286 encode_putfh(xdr
, args
->new_dir
, &hdr
);
2287 encode_rename(xdr
, args
->old_name
, args
->new_name
, &hdr
);
2292 * Encode LINK request
2294 static void nfs4_xdr_enc_link(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2297 const struct nfs4_link_arg
*args
= data
;
2298 struct compound_hdr hdr
= {
2299 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2302 encode_compound_hdr(xdr
, req
, &hdr
);
2303 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2304 encode_putfh(xdr
, args
->fh
, &hdr
);
2305 encode_savefh(xdr
, &hdr
);
2306 encode_putfh(xdr
, args
->dir_fh
, &hdr
);
2307 encode_link(xdr
, args
->name
, &hdr
);
2308 encode_restorefh(xdr
, &hdr
);
2309 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2314 * Encode CREATE request
2316 static void nfs4_xdr_enc_create(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2319 const struct nfs4_create_arg
*args
= data
;
2320 struct compound_hdr hdr
= {
2321 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2324 encode_compound_hdr(xdr
, req
, &hdr
);
2325 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2326 encode_putfh(xdr
, args
->dir_fh
, &hdr
);
2327 encode_create(xdr
, args
, &hdr
);
2328 encode_getfh(xdr
, &hdr
);
2329 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2334 * Encode SYMLINK request
2336 static void nfs4_xdr_enc_symlink(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2339 const struct nfs4_create_arg
*args
= data
;
2341 nfs4_xdr_enc_create(req
, xdr
, args
);
2345 * Encode GETATTR request
2347 static void nfs4_xdr_enc_getattr(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2350 const struct nfs4_getattr_arg
*args
= data
;
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_getfattr(xdr
, args
->bitmask
, &hdr
);
2363 * Encode a CLOSE request
2365 static void nfs4_xdr_enc_close(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2368 const struct nfs_closeargs
*args
= data
;
2369 struct compound_hdr hdr
= {
2370 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2373 encode_compound_hdr(xdr
, req
, &hdr
);
2374 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2375 encode_putfh(xdr
, args
->fh
, &hdr
);
2377 encode_layoutreturn(xdr
, args
->lr_args
, &hdr
);
2378 if (args
->bitmask
!= NULL
)
2379 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2380 encode_close(xdr
, args
, &hdr
);
2385 * Encode an OPEN request
2387 static void nfs4_xdr_enc_open(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2390 const struct nfs_openargs
*args
= data
;
2391 struct compound_hdr hdr
= {
2392 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2395 encode_compound_hdr(xdr
, req
, &hdr
);
2396 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2397 encode_putfh(xdr
, args
->fh
, &hdr
);
2398 encode_open(xdr
, args
, &hdr
);
2399 encode_getfh(xdr
, &hdr
);
2401 encode_access(xdr
, args
->access
, &hdr
);
2402 encode_getfattr_open(xdr
, args
->bitmask
, args
->open_bitmap
, &hdr
);
2403 if (args
->lg_args
) {
2404 encode_layoutget(xdr
, args
->lg_args
, &hdr
);
2405 rpc_prepare_reply_pages(req
, args
->lg_args
->layout
.pages
, 0,
2406 args
->lg_args
->layout
.pglen
,
2407 hdr
.replen
- pagepad_maxsz
);
2413 * Encode an OPEN_CONFIRM request
2415 static void nfs4_xdr_enc_open_confirm(struct rpc_rqst
*req
,
2416 struct xdr_stream
*xdr
,
2419 const struct nfs_open_confirmargs
*args
= data
;
2420 struct compound_hdr hdr
= {
2424 encode_compound_hdr(xdr
, req
, &hdr
);
2425 encode_putfh(xdr
, args
->fh
, &hdr
);
2426 encode_open_confirm(xdr
, args
, &hdr
);
2431 * Encode an OPEN request with no attributes.
2433 static void nfs4_xdr_enc_open_noattr(struct rpc_rqst
*req
,
2434 struct xdr_stream
*xdr
,
2437 const struct nfs_openargs
*args
= data
;
2438 struct compound_hdr hdr
= {
2439 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2442 encode_compound_hdr(xdr
, req
, &hdr
);
2443 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2444 encode_putfh(xdr
, args
->fh
, &hdr
);
2445 encode_open(xdr
, args
, &hdr
);
2447 encode_access(xdr
, args
->access
, &hdr
);
2448 encode_getfattr_open(xdr
, args
->bitmask
, args
->open_bitmap
, &hdr
);
2449 if (args
->lg_args
) {
2450 encode_layoutget(xdr
, args
->lg_args
, &hdr
);
2451 rpc_prepare_reply_pages(req
, args
->lg_args
->layout
.pages
, 0,
2452 args
->lg_args
->layout
.pglen
,
2453 hdr
.replen
- pagepad_maxsz
);
2459 * Encode an OPEN_DOWNGRADE request
2461 static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst
*req
,
2462 struct xdr_stream
*xdr
,
2465 const struct nfs_closeargs
*args
= data
;
2466 struct compound_hdr hdr
= {
2467 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2470 encode_compound_hdr(xdr
, req
, &hdr
);
2471 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2472 encode_putfh(xdr
, args
->fh
, &hdr
);
2474 encode_layoutreturn(xdr
, args
->lr_args
, &hdr
);
2475 encode_open_downgrade(xdr
, args
, &hdr
);
2480 * Encode a LOCK request
2482 static void nfs4_xdr_enc_lock(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2485 const struct nfs_lock_args
*args
= data
;
2486 struct compound_hdr hdr
= {
2487 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2490 encode_compound_hdr(xdr
, req
, &hdr
);
2491 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2492 encode_putfh(xdr
, args
->fh
, &hdr
);
2493 encode_lock(xdr
, args
, &hdr
);
2498 * Encode a LOCKT request
2500 static void nfs4_xdr_enc_lockt(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2503 const struct nfs_lockt_args
*args
= data
;
2504 struct compound_hdr hdr
= {
2505 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2508 encode_compound_hdr(xdr
, req
, &hdr
);
2509 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2510 encode_putfh(xdr
, args
->fh
, &hdr
);
2511 encode_lockt(xdr
, args
, &hdr
);
2516 * Encode a LOCKU request
2518 static void nfs4_xdr_enc_locku(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2521 const struct nfs_locku_args
*args
= data
;
2522 struct compound_hdr hdr
= {
2523 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2526 encode_compound_hdr(xdr
, req
, &hdr
);
2527 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2528 encode_putfh(xdr
, args
->fh
, &hdr
);
2529 encode_locku(xdr
, args
, &hdr
);
2533 static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst
*req
,
2534 struct xdr_stream
*xdr
,
2537 const struct nfs_release_lockowner_args
*args
= data
;
2538 struct compound_hdr hdr
= {
2542 encode_compound_hdr(xdr
, req
, &hdr
);
2543 encode_release_lockowner(xdr
, &args
->lock_owner
, &hdr
);
2548 * Encode a READLINK request
2550 static void nfs4_xdr_enc_readlink(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2553 const struct nfs4_readlink
*args
= data
;
2554 struct compound_hdr hdr
= {
2555 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2558 encode_compound_hdr(xdr
, req
, &hdr
);
2559 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2560 encode_putfh(xdr
, args
->fh
, &hdr
);
2561 encode_readlink(xdr
, args
, req
, &hdr
);
2563 rpc_prepare_reply_pages(req
, args
->pages
, args
->pgbase
,
2564 args
->pglen
, hdr
.replen
- pagepad_maxsz
);
2569 * Encode a READDIR request
2571 static void nfs4_xdr_enc_readdir(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2574 const struct nfs4_readdir_arg
*args
= data
;
2575 struct compound_hdr hdr
= {
2576 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2579 encode_compound_hdr(xdr
, req
, &hdr
);
2580 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2581 encode_putfh(xdr
, args
->fh
, &hdr
);
2582 encode_readdir(xdr
, args
, req
, &hdr
);
2584 rpc_prepare_reply_pages(req
, args
->pages
, args
->pgbase
,
2585 args
->count
, hdr
.replen
- pagepad_maxsz
);
2590 * Encode a READ request
2592 static void nfs4_xdr_enc_read(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2595 const struct nfs_pgio_args
*args
= data
;
2596 struct compound_hdr hdr
= {
2597 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2600 encode_compound_hdr(xdr
, req
, &hdr
);
2601 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2602 encode_putfh(xdr
, args
->fh
, &hdr
);
2603 encode_read(xdr
, args
, &hdr
);
2605 rpc_prepare_reply_pages(req
, args
->pages
, args
->pgbase
,
2606 args
->count
, hdr
.replen
- pagepad_maxsz
);
2607 req
->rq_rcv_buf
.flags
|= XDRBUF_READ
;
2612 * Encode an SETATTR request
2614 static void nfs4_xdr_enc_setattr(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2617 const struct nfs_setattrargs
*args
= data
;
2618 struct compound_hdr hdr
= {
2619 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2622 encode_compound_hdr(xdr
, req
, &hdr
);
2623 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2624 encode_putfh(xdr
, args
->fh
, &hdr
);
2625 encode_setattr(xdr
, args
, args
->server
, &hdr
);
2626 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2631 * Encode a GETACL request
2633 static void nfs4_xdr_enc_getacl(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2636 const struct nfs_getaclargs
*args
= data
;
2637 struct compound_hdr hdr
= {
2638 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2640 __u32 nfs4_acl_bitmap
[2];
2643 nfs4_acltype_to_bitmap(args
->acl_type
, nfs4_acl_bitmap
);
2645 encode_compound_hdr(xdr
, req
, &hdr
);
2646 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2647 encode_putfh(xdr
, args
->fh
, &hdr
);
2648 replen
= hdr
.replen
+ op_decode_hdr_maxsz
;
2649 encode_getattr(xdr
, nfs4_acl_bitmap
, NULL
,
2650 ARRAY_SIZE(nfs4_acl_bitmap
), &hdr
);
2652 rpc_prepare_reply_pages(req
, args
->acl_pages
, 0,
2653 args
->acl_len
, replen
);
2658 * Encode a WRITE request
2660 static void nfs4_xdr_enc_write(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2663 const struct nfs_pgio_args
*args
= data
;
2664 struct compound_hdr hdr
= {
2665 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2668 encode_compound_hdr(xdr
, req
, &hdr
);
2669 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2670 encode_putfh(xdr
, args
->fh
, &hdr
);
2671 encode_write(xdr
, args
, &hdr
);
2672 req
->rq_snd_buf
.flags
|= XDRBUF_WRITE
;
2674 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2681 static void nfs4_xdr_enc_commit(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2684 const struct nfs_commitargs
*args
= data
;
2685 struct compound_hdr hdr
= {
2686 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2689 encode_compound_hdr(xdr
, req
, &hdr
);
2690 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2691 encode_putfh(xdr
, args
->fh
, &hdr
);
2692 encode_commit(xdr
, args
, &hdr
);
2699 static void nfs4_xdr_enc_fsinfo(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2702 const struct nfs4_fsinfo_arg
*args
= data
;
2703 struct compound_hdr hdr
= {
2704 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2707 encode_compound_hdr(xdr
, req
, &hdr
);
2708 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2709 encode_putfh(xdr
, args
->fh
, &hdr
);
2710 encode_fsinfo(xdr
, args
->bitmask
, &hdr
);
2715 * a PATHCONF request
2717 static void nfs4_xdr_enc_pathconf(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2720 const struct nfs4_pathconf_arg
*args
= data
;
2721 struct compound_hdr hdr
= {
2722 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2725 encode_compound_hdr(xdr
, req
, &hdr
);
2726 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2727 encode_putfh(xdr
, args
->fh
, &hdr
);
2728 encode_getattr(xdr
, nfs4_pathconf_bitmap
, args
->bitmask
,
2729 ARRAY_SIZE(nfs4_pathconf_bitmap
), &hdr
);
2736 static void nfs4_xdr_enc_statfs(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2739 const struct nfs4_statfs_arg
*args
= data
;
2740 struct compound_hdr hdr
= {
2741 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2744 encode_compound_hdr(xdr
, req
, &hdr
);
2745 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2746 encode_putfh(xdr
, args
->fh
, &hdr
);
2747 encode_getattr(xdr
, nfs4_statfs_bitmap
, args
->bitmask
,
2748 ARRAY_SIZE(nfs4_statfs_bitmap
), &hdr
);
2753 * GETATTR_BITMAP request
2755 static void nfs4_xdr_enc_server_caps(struct rpc_rqst
*req
,
2756 struct xdr_stream
*xdr
,
2759 const struct nfs4_server_caps_arg
*args
= data
;
2760 const u32
*bitmask
= args
->bitmask
;
2761 struct compound_hdr hdr
= {
2762 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2765 encode_compound_hdr(xdr
, req
, &hdr
);
2766 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2767 encode_putfh(xdr
, args
->fhandle
, &hdr
);
2768 encode_getattr(xdr
, bitmask
, NULL
, 3, &hdr
);
2775 static void nfs4_xdr_enc_renew(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
2779 const struct nfs_client
*clp
= data
;
2780 struct compound_hdr hdr
= {
2784 encode_compound_hdr(xdr
, req
, &hdr
);
2785 encode_renew(xdr
, clp
->cl_clientid
, &hdr
);
2790 * a SETCLIENTID request
2792 static void nfs4_xdr_enc_setclientid(struct rpc_rqst
*req
,
2793 struct xdr_stream
*xdr
,
2796 const struct nfs4_setclientid
*sc
= data
;
2797 struct compound_hdr hdr
= {
2801 encode_compound_hdr(xdr
, req
, &hdr
);
2802 encode_setclientid(xdr
, sc
, &hdr
);
2807 * a SETCLIENTID_CONFIRM request
2809 static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst
*req
,
2810 struct xdr_stream
*xdr
,
2813 const struct nfs4_setclientid_res
*arg
= data
;
2814 struct compound_hdr hdr
= {
2818 encode_compound_hdr(xdr
, req
, &hdr
);
2819 encode_setclientid_confirm(xdr
, arg
, &hdr
);
2824 * DELEGRETURN request
2826 static void nfs4_xdr_enc_delegreturn(struct rpc_rqst
*req
,
2827 struct xdr_stream
*xdr
,
2830 const struct nfs4_delegreturnargs
*args
= data
;
2831 struct compound_hdr hdr
= {
2832 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2835 encode_compound_hdr(xdr
, req
, &hdr
);
2836 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2837 encode_putfh(xdr
, args
->fhandle
, &hdr
);
2839 encode_layoutreturn(xdr
, args
->lr_args
, &hdr
);
2840 if (args
->sattr_args
)
2841 encode_delegattr(xdr
, args
->stateid
, args
->sattr_args
, &hdr
);
2843 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
2844 encode_delegreturn(xdr
, args
->stateid
, &hdr
);
2849 * Encode FS_LOCATIONS request
2851 static void nfs4_xdr_enc_fs_locations(struct rpc_rqst
*req
,
2852 struct xdr_stream
*xdr
,
2855 const struct nfs4_fs_locations_arg
*args
= data
;
2856 struct compound_hdr hdr
= {
2857 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2861 encode_compound_hdr(xdr
, req
, &hdr
);
2862 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2863 if (args
->migration
) {
2864 encode_putfh(xdr
, args
->fh
, &hdr
);
2865 replen
= hdr
.replen
;
2866 encode_fs_locations(xdr
, args
->bitmask
, &hdr
);
2868 encode_renew(xdr
, args
->clientid
, &hdr
);
2870 encode_putfh(xdr
, args
->dir_fh
, &hdr
);
2871 encode_lookup(xdr
, args
->name
, &hdr
);
2872 replen
= hdr
.replen
;
2873 encode_fs_locations(xdr
, args
->bitmask
, &hdr
);
2876 rpc_prepare_reply_pages(req
, (struct page
**)&args
->page
, 0,
2882 * Encode SECINFO request
2884 static void nfs4_xdr_enc_secinfo(struct rpc_rqst
*req
,
2885 struct xdr_stream
*xdr
,
2888 const struct nfs4_secinfo_arg
*args
= data
;
2889 struct compound_hdr hdr
= {
2890 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2893 encode_compound_hdr(xdr
, req
, &hdr
);
2894 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2895 encode_putfh(xdr
, args
->dir_fh
, &hdr
);
2896 encode_secinfo(xdr
, args
->name
, &hdr
);
2901 * Encode FSID_PRESENT request
2903 static void nfs4_xdr_enc_fsid_present(struct rpc_rqst
*req
,
2904 struct xdr_stream
*xdr
,
2907 const struct nfs4_fsid_present_arg
*args
= data
;
2908 struct compound_hdr hdr
= {
2909 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
2912 encode_compound_hdr(xdr
, req
, &hdr
);
2913 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
2914 encode_putfh(xdr
, args
->fh
, &hdr
);
2915 encode_getfh(xdr
, &hdr
);
2917 encode_renew(xdr
, args
->clientid
, &hdr
);
2921 #if defined(CONFIG_NFS_V4_1)
2923 * BIND_CONN_TO_SESSION request
2925 static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst
*req
,
2926 struct xdr_stream
*xdr
,
2929 const struct nfs41_bind_conn_to_session_args
*args
= data
;
2930 struct compound_hdr hdr
= {
2931 .minorversion
= args
->client
->cl_mvops
->minor_version
,
2934 encode_compound_hdr(xdr
, req
, &hdr
);
2935 encode_bind_conn_to_session(xdr
, args
, &hdr
);
2940 * EXCHANGE_ID request
2942 static void nfs4_xdr_enc_exchange_id(struct rpc_rqst
*req
,
2943 struct xdr_stream
*xdr
,
2946 const struct nfs41_exchange_id_args
*args
= data
;
2947 struct compound_hdr hdr
= {
2948 .minorversion
= args
->client
->cl_mvops
->minor_version
,
2951 encode_compound_hdr(xdr
, req
, &hdr
);
2952 encode_exchange_id(xdr
, args
, &hdr
);
2957 * a CREATE_SESSION request
2959 static void nfs4_xdr_enc_create_session(struct rpc_rqst
*req
,
2960 struct xdr_stream
*xdr
,
2963 const struct nfs41_create_session_args
*args
= data
;
2964 struct compound_hdr hdr
= {
2965 .minorversion
= args
->client
->cl_mvops
->minor_version
,
2968 encode_compound_hdr(xdr
, req
, &hdr
);
2969 encode_create_session(xdr
, args
, &hdr
);
2974 * a DESTROY_SESSION request
2976 static void nfs4_xdr_enc_destroy_session(struct rpc_rqst
*req
,
2977 struct xdr_stream
*xdr
,
2980 const struct nfs4_session
*session
= data
;
2981 struct compound_hdr hdr
= {
2982 .minorversion
= session
->clp
->cl_mvops
->minor_version
,
2985 encode_compound_hdr(xdr
, req
, &hdr
);
2986 encode_destroy_session(xdr
, session
, &hdr
);
2991 * a DESTROY_CLIENTID request
2993 static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst
*req
,
2994 struct xdr_stream
*xdr
,
2997 const struct nfs_client
*clp
= data
;
2998 struct compound_hdr hdr
= {
2999 .minorversion
= clp
->cl_mvops
->minor_version
,
3002 encode_compound_hdr(xdr
, req
, &hdr
);
3003 encode_destroy_clientid(xdr
, clp
->cl_clientid
, &hdr
);
3008 * a SEQUENCE request
3010 static void nfs4_xdr_enc_sequence(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
3013 const struct nfs4_sequence_args
*args
= data
;
3014 struct compound_hdr hdr
= {
3015 .minorversion
= nfs4_xdr_minorversion(args
),
3018 encode_compound_hdr(xdr
, req
, &hdr
);
3019 encode_sequence(xdr
, args
, &hdr
);
3026 * a GET_LEASE_TIME request
3028 static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst
*req
,
3029 struct xdr_stream
*xdr
,
3032 const struct nfs4_get_lease_time_args
*args
= data
;
3033 struct compound_hdr hdr
= {
3034 .minorversion
= nfs4_xdr_minorversion(&args
->la_seq_args
),
3036 const u32 lease_bitmap
[3] = { FATTR4_WORD0_LEASE_TIME
};
3038 encode_compound_hdr(xdr
, req
, &hdr
);
3039 encode_sequence(xdr
, &args
->la_seq_args
, &hdr
);
3040 encode_putrootfh(xdr
, &hdr
);
3041 encode_fsinfo(xdr
, lease_bitmap
, &hdr
);
3045 #ifdef CONFIG_NFS_V4_1
3048 * a RECLAIM_COMPLETE request
3050 static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst
*req
,
3051 struct xdr_stream
*xdr
,
3054 const struct nfs41_reclaim_complete_args
*args
= data
;
3055 struct compound_hdr hdr
= {
3056 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
)
3059 encode_compound_hdr(xdr
, req
, &hdr
);
3060 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
3061 encode_reclaim_complete(xdr
, args
, &hdr
);
3066 * Encode GETDEVICEINFO request
3068 static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst
*req
,
3069 struct xdr_stream
*xdr
,
3072 const struct nfs4_getdeviceinfo_args
*args
= data
;
3073 struct compound_hdr hdr
= {
3074 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
3078 encode_compound_hdr(xdr
, req
, &hdr
);
3079 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
3081 replen
= hdr
.replen
+ op_decode_hdr_maxsz
+ 2;
3083 encode_getdeviceinfo(xdr
, args
, &hdr
);
3085 /* set up reply kvec. device_addr4 opaque data is read into the
3087 rpc_prepare_reply_pages(req
, args
->pdev
->pages
, args
->pdev
->pgbase
,
3088 args
->pdev
->pglen
, replen
);
3093 * Encode LAYOUTGET request
3095 static void nfs4_xdr_enc_layoutget(struct rpc_rqst
*req
,
3096 struct xdr_stream
*xdr
,
3099 const struct nfs4_layoutget_args
*args
= data
;
3100 struct compound_hdr hdr
= {
3101 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
3104 encode_compound_hdr(xdr
, req
, &hdr
);
3105 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
3106 encode_putfh(xdr
, NFS_FH(args
->inode
), &hdr
);
3107 encode_layoutget(xdr
, args
, &hdr
);
3109 rpc_prepare_reply_pages(req
, args
->layout
.pages
, 0,
3110 args
->layout
.pglen
, hdr
.replen
- pagepad_maxsz
);
3115 * Encode LAYOUTCOMMIT request
3117 static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst
*req
,
3118 struct xdr_stream
*xdr
,
3121 const struct nfs4_layoutcommit_args
*args
= priv
;
3122 struct nfs4_layoutcommit_data
*data
=
3123 container_of(args
, struct nfs4_layoutcommit_data
, args
);
3124 struct compound_hdr hdr
= {
3125 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
3128 encode_compound_hdr(xdr
, req
, &hdr
);
3129 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
3130 encode_putfh(xdr
, NFS_FH(args
->inode
), &hdr
);
3131 encode_layoutcommit(xdr
, data
->args
.inode
, args
, &hdr
);
3132 encode_getfattr(xdr
, args
->bitmask
, &hdr
);
3137 * Encode LAYOUTRETURN request
3139 static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst
*req
,
3140 struct xdr_stream
*xdr
,
3143 const struct nfs4_layoutreturn_args
*args
= data
;
3144 struct compound_hdr hdr
= {
3145 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
3148 encode_compound_hdr(xdr
, req
, &hdr
);
3149 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
3150 encode_putfh(xdr
, NFS_FH(args
->inode
), &hdr
);
3151 encode_layoutreturn(xdr
, args
, &hdr
);
3156 * Encode SECINFO_NO_NAME request
3158 static void nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst
*req
,
3159 struct xdr_stream
*xdr
,
3162 const struct nfs41_secinfo_no_name_args
*args
= data
;
3163 struct compound_hdr hdr
= {
3164 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
3167 encode_compound_hdr(xdr
, req
, &hdr
);
3168 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
3169 encode_putrootfh(xdr
, &hdr
);
3170 encode_secinfo_no_name(xdr
, args
, &hdr
);
3175 * Encode TEST_STATEID request
3177 static void nfs4_xdr_enc_test_stateid(struct rpc_rqst
*req
,
3178 struct xdr_stream
*xdr
,
3181 const struct nfs41_test_stateid_args
*args
= data
;
3182 struct compound_hdr hdr
= {
3183 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
3186 encode_compound_hdr(xdr
, req
, &hdr
);
3187 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
3188 encode_test_stateid(xdr
, args
, &hdr
);
3193 * Encode FREE_STATEID request
3195 static void nfs4_xdr_enc_free_stateid(struct rpc_rqst
*req
,
3196 struct xdr_stream
*xdr
,
3199 const struct nfs41_free_stateid_args
*args
= data
;
3200 struct compound_hdr hdr
= {
3201 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
3204 encode_compound_hdr(xdr
, req
, &hdr
);
3205 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
3206 encode_free_stateid(xdr
, args
, &hdr
);
3209 #endif /* CONFIG_NFS_V4_1 */
3211 static int decode_opaque_inline(struct xdr_stream
*xdr
, unsigned int *len
, char **string
)
3213 ssize_t ret
= xdr_stream_decode_opaque_inline(xdr
, (void **)string
,
3215 if (unlikely(ret
< 0))
3221 static int decode_compound_hdr(struct xdr_stream
*xdr
, struct compound_hdr
*hdr
)
3227 if (xdr_stream_decode_u32(xdr
, &tmp
) < 0)
3231 ret
= xdr_stream_decode_opaque_inline(xdr
, &ptr
, NFS4_OPAQUE_LIMIT
);
3237 if (xdr_stream_decode_u32(xdr
, &tmp
) < 0)
3240 if (unlikely(hdr
->nops
< 1))
3241 return nfs4_stat_to_errno(hdr
->status
);
3245 static bool __decode_op_hdr(struct xdr_stream
*xdr
, enum nfs_opnum4 expected
,
3252 p
= xdr_inline_decode(xdr
, 8);
3255 opnum
= be32_to_cpup(p
++);
3256 if (unlikely(opnum
!= expected
))
3257 goto out_bad_operation
;
3258 if (unlikely(*p
!= cpu_to_be32(NFS_OK
)))
3263 nfserr
= be32_to_cpup(p
);
3264 trace_nfs4_xdr_status(xdr
, opnum
, nfserr
);
3265 *nfs_retval
= nfs4_stat_to_errno(nfserr
);
3268 trace_nfs4_xdr_bad_operation(xdr
, opnum
, expected
);
3269 *nfs_retval
= -EREMOTEIO
;
3276 static int decode_op_hdr(struct xdr_stream
*xdr
, enum nfs_opnum4 expected
)
3280 __decode_op_hdr(xdr
, expected
, &retval
);
3285 static int decode_ace(struct xdr_stream
*xdr
, void *ace
)
3288 unsigned int strlen
;
3291 p
= xdr_inline_decode(xdr
, 12);
3294 return decode_opaque_inline(xdr
, &strlen
, &str
);
3298 decode_bitmap4(struct xdr_stream
*xdr
, uint32_t *bitmap
, size_t sz
)
3302 ret
= xdr_stream_decode_uint32_array(xdr
, bitmap
, sz
);
3303 if (likely(ret
>= 0))
3305 if (ret
!= -EMSGSIZE
)
3310 static int decode_attr_bitmap(struct xdr_stream
*xdr
, uint32_t *bitmap
)
3313 ret
= decode_bitmap4(xdr
, bitmap
, 3);
3314 return ret
< 0 ? ret
: 0;
3317 static int decode_attr_length(struct xdr_stream
*xdr
, uint32_t *attrlen
, unsigned int *savep
)
3321 p
= xdr_inline_decode(xdr
, 4);
3324 *attrlen
= be32_to_cpup(p
);
3325 *savep
= xdr_stream_pos(xdr
);
3329 static int decode_attr_supported(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *bitmask
)
3331 if (likely(bitmap
[0] & FATTR4_WORD0_SUPPORTED_ATTRS
)) {
3333 ret
= decode_attr_bitmap(xdr
, bitmask
);
3334 if (unlikely(ret
< 0))
3336 bitmap
[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS
;
3338 bitmask
[0] = bitmask
[1] = bitmask
[2] = 0;
3339 dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__
,
3340 bitmask
[0], bitmask
[1], bitmask
[2]);
3344 static int decode_attr_type(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *type
)
3350 if (unlikely(bitmap
[0] & (FATTR4_WORD0_TYPE
- 1U)))
3352 if (likely(bitmap
[0] & FATTR4_WORD0_TYPE
)) {
3353 p
= xdr_inline_decode(xdr
, 4);
3356 *type
= be32_to_cpup(p
);
3357 if (*type
< NF4REG
|| *type
> NF4NAMEDATTR
) {
3358 dprintk("%s: bad type %d\n", __func__
, *type
);
3361 bitmap
[0] &= ~FATTR4_WORD0_TYPE
;
3362 ret
= NFS_ATTR_FATTR_TYPE
;
3364 dprintk("%s: type=0%o\n", __func__
, nfs_type2fmt
[*type
]);
3368 static int decode_attr_fh_expire_type(struct xdr_stream
*xdr
,
3369 uint32_t *bitmap
, uint32_t *type
)
3374 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE
- 1U)))
3376 if (likely(bitmap
[0] & FATTR4_WORD0_FH_EXPIRE_TYPE
)) {
3377 p
= xdr_inline_decode(xdr
, 4);
3380 *type
= be32_to_cpup(p
);
3381 bitmap
[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE
;
3383 dprintk("%s: expire type=0x%x\n", __func__
, *type
);
3387 static int decode_attr_change(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *change
)
3393 if (unlikely(bitmap
[0] & (FATTR4_WORD0_CHANGE
- 1U)))
3395 if (likely(bitmap
[0] & FATTR4_WORD0_CHANGE
)) {
3396 p
= xdr_inline_decode(xdr
, 8);
3399 xdr_decode_hyper(p
, change
);
3400 bitmap
[0] &= ~FATTR4_WORD0_CHANGE
;
3401 ret
= NFS_ATTR_FATTR_CHANGE
;
3403 dprintk("%s: change attribute=%Lu\n", __func__
,
3404 (unsigned long long)*change
);
3408 static int decode_attr_size(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *size
)
3414 if (unlikely(bitmap
[0] & (FATTR4_WORD0_SIZE
- 1U)))
3416 if (likely(bitmap
[0] & FATTR4_WORD0_SIZE
)) {
3417 p
= xdr_inline_decode(xdr
, 8);
3420 xdr_decode_hyper(p
, size
);
3421 bitmap
[0] &= ~FATTR4_WORD0_SIZE
;
3422 ret
= NFS_ATTR_FATTR_SIZE
;
3424 dprintk("%s: file size=%Lu\n", __func__
, (unsigned long long)*size
);
3428 static int decode_attr_link_support(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3433 if (unlikely(bitmap
[0] & (FATTR4_WORD0_LINK_SUPPORT
- 1U)))
3435 if (likely(bitmap
[0] & FATTR4_WORD0_LINK_SUPPORT
)) {
3436 p
= xdr_inline_decode(xdr
, 4);
3439 *res
= be32_to_cpup(p
);
3440 bitmap
[0] &= ~FATTR4_WORD0_LINK_SUPPORT
;
3442 dprintk("%s: link support=%s\n", __func__
, str_false_true(*res
== 0));
3446 static int decode_attr_symlink_support(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3451 if (unlikely(bitmap
[0] & (FATTR4_WORD0_SYMLINK_SUPPORT
- 1U)))
3453 if (likely(bitmap
[0] & FATTR4_WORD0_SYMLINK_SUPPORT
)) {
3454 p
= xdr_inline_decode(xdr
, 4);
3457 *res
= be32_to_cpup(p
);
3458 bitmap
[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT
;
3460 dprintk("%s: symlink support=%s\n", __func__
, str_false_true(*res
== 0));
3464 static int decode_attr_fsid(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct nfs_fsid
*fsid
)
3471 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FSID
- 1U)))
3473 if (likely(bitmap
[0] & FATTR4_WORD0_FSID
)) {
3474 p
= xdr_inline_decode(xdr
, 16);
3477 p
= xdr_decode_hyper(p
, &fsid
->major
);
3478 xdr_decode_hyper(p
, &fsid
->minor
);
3479 bitmap
[0] &= ~FATTR4_WORD0_FSID
;
3480 ret
= NFS_ATTR_FATTR_FSID
;
3482 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__
,
3483 (unsigned long long)fsid
->major
,
3484 (unsigned long long)fsid
->minor
);
3488 static int decode_attr_lease_time(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3493 if (unlikely(bitmap
[0] & (FATTR4_WORD0_LEASE_TIME
- 1U)))
3495 if (likely(bitmap
[0] & FATTR4_WORD0_LEASE_TIME
)) {
3496 p
= xdr_inline_decode(xdr
, 4);
3499 *res
= be32_to_cpup(p
);
3500 bitmap
[0] &= ~FATTR4_WORD0_LEASE_TIME
;
3502 dprintk("%s: lease time=%u\n", __func__
, (unsigned int)*res
);
3506 static int decode_attr_error(struct xdr_stream
*xdr
, uint32_t *bitmap
, int32_t *res
)
3510 if (unlikely(bitmap
[0] & (FATTR4_WORD0_RDATTR_ERROR
- 1U)))
3512 if (likely(bitmap
[0] & FATTR4_WORD0_RDATTR_ERROR
)) {
3513 p
= xdr_inline_decode(xdr
, 4);
3516 bitmap
[0] &= ~FATTR4_WORD0_RDATTR_ERROR
;
3517 *res
= -be32_to_cpup(p
);
3522 static int decode_attr_exclcreat_supported(struct xdr_stream
*xdr
,
3523 uint32_t *bitmap
, uint32_t *bitmask
)
3525 if (likely(bitmap
[2] & FATTR4_WORD2_SUPPATTR_EXCLCREAT
)) {
3527 ret
= decode_attr_bitmap(xdr
, bitmask
);
3528 if (unlikely(ret
< 0))
3530 bitmap
[2] &= ~FATTR4_WORD2_SUPPATTR_EXCLCREAT
;
3532 bitmask
[0] = bitmask
[1] = bitmask
[2] = 0;
3533 dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__
,
3534 bitmask
[0], bitmask
[1], bitmask
[2]);
3538 static int decode_attr_filehandle(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct nfs_fh
*fh
)
3544 memset(fh
, 0, sizeof(*fh
));
3546 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILEHANDLE
- 1U)))
3548 if (likely(bitmap
[0] & FATTR4_WORD0_FILEHANDLE
)) {
3549 p
= xdr_inline_decode(xdr
, 4);
3552 len
= be32_to_cpup(p
);
3553 if (len
> NFS4_FHSIZE
|| len
== 0) {
3554 trace_nfs4_xdr_bad_filehandle(xdr
, OP_READDIR
,
3558 p
= xdr_inline_decode(xdr
, len
);
3562 memcpy(fh
->data
, p
, len
);
3565 bitmap
[0] &= ~FATTR4_WORD0_FILEHANDLE
;
3570 static int decode_attr_aclsupport(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3575 if (unlikely(bitmap
[0] & (FATTR4_WORD0_ACLSUPPORT
- 1U)))
3577 if (likely(bitmap
[0] & FATTR4_WORD0_ACLSUPPORT
)) {
3578 p
= xdr_inline_decode(xdr
, 4);
3581 *res
= be32_to_cpup(p
);
3582 bitmap
[0] &= ~FATTR4_WORD0_ACLSUPPORT
;
3584 dprintk("%s: ACLs supported=%u\n", __func__
, (unsigned int)*res
);
3588 static int decode_attr_case_insensitive(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3593 if (unlikely(bitmap
[0] & (FATTR4_WORD0_CASE_INSENSITIVE
- 1U)))
3595 if (likely(bitmap
[0] & FATTR4_WORD0_CASE_INSENSITIVE
)) {
3596 p
= xdr_inline_decode(xdr
, 4);
3599 *res
= be32_to_cpup(p
);
3600 bitmap
[0] &= ~FATTR4_WORD0_CASE_INSENSITIVE
;
3602 dprintk("%s: case_insensitive=%s\n", __func__
, str_false_true(*res
== 0));
3606 static int decode_attr_case_preserving(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3611 if (unlikely(bitmap
[0] & (FATTR4_WORD0_CASE_PRESERVING
- 1U)))
3613 if (likely(bitmap
[0] & FATTR4_WORD0_CASE_PRESERVING
)) {
3614 p
= xdr_inline_decode(xdr
, 4);
3617 *res
= be32_to_cpup(p
);
3618 bitmap
[0] &= ~FATTR4_WORD0_CASE_PRESERVING
;
3620 dprintk("%s: case_preserving=%s\n", __func__
, str_false_true(*res
== 0));
3624 static int decode_attr_fileid(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *fileid
)
3630 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILEID
- 1U)))
3632 if (likely(bitmap
[0] & FATTR4_WORD0_FILEID
)) {
3633 p
= xdr_inline_decode(xdr
, 8);
3636 xdr_decode_hyper(p
, fileid
);
3637 bitmap
[0] &= ~FATTR4_WORD0_FILEID
;
3638 ret
= NFS_ATTR_FATTR_FILEID
;
3640 dprintk("%s: fileid=%Lu\n", __func__
, (unsigned long long)*fileid
);
3644 static int decode_attr_mounted_on_fileid(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *fileid
)
3650 if (unlikely(bitmap
[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID
- 1U)))
3652 if (likely(bitmap
[1] & FATTR4_WORD1_MOUNTED_ON_FILEID
)) {
3653 p
= xdr_inline_decode(xdr
, 8);
3656 xdr_decode_hyper(p
, fileid
);
3657 bitmap
[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID
;
3658 ret
= NFS_ATTR_FATTR_MOUNTED_ON_FILEID
;
3660 dprintk("%s: fileid=%Lu\n", __func__
, (unsigned long long)*fileid
);
3664 static int decode_attr_files_avail(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3670 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_AVAIL
- 1U)))
3672 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_AVAIL
)) {
3673 p
= xdr_inline_decode(xdr
, 8);
3676 xdr_decode_hyper(p
, res
);
3677 bitmap
[0] &= ~FATTR4_WORD0_FILES_AVAIL
;
3679 dprintk("%s: files avail=%Lu\n", __func__
, (unsigned long long)*res
);
3683 static int decode_attr_files_free(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3689 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_FREE
- 1U)))
3691 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_FREE
)) {
3692 p
= xdr_inline_decode(xdr
, 8);
3695 xdr_decode_hyper(p
, res
);
3696 bitmap
[0] &= ~FATTR4_WORD0_FILES_FREE
;
3698 dprintk("%s: files free=%Lu\n", __func__
, (unsigned long long)*res
);
3702 static int decode_attr_files_total(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3708 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FILES_TOTAL
- 1U)))
3710 if (likely(bitmap
[0] & FATTR4_WORD0_FILES_TOTAL
)) {
3711 p
= xdr_inline_decode(xdr
, 8);
3714 xdr_decode_hyper(p
, res
);
3715 bitmap
[0] &= ~FATTR4_WORD0_FILES_TOTAL
;
3717 dprintk("%s: files total=%Lu\n", __func__
, (unsigned long long)*res
);
3721 static int decode_pathname(struct xdr_stream
*xdr
, struct nfs4_pathname
*path
)
3727 p
= xdr_inline_decode(xdr
, 4);
3730 n
= be32_to_cpup(p
);
3733 dprintk("pathname4: ");
3734 if (n
> NFS4_PATHNAME_MAXCOMPONENTS
) {
3735 dprintk("cannot parse %d components in path\n", n
);
3738 for (path
->ncomponents
= 0; path
->ncomponents
< n
; path
->ncomponents
++) {
3739 struct nfs4_string
*component
= &path
->components
[path
->ncomponents
];
3740 status
= decode_opaque_inline(xdr
, &component
->len
, &component
->data
);
3741 if (unlikely(status
!= 0))
3745 (path
->ncomponents
!= n
? "/ " : ""),
3746 component
->len
, component
->data
);
3751 /* a root pathname is sent as a zero component4 */
3752 path
->ncomponents
= 1;
3753 path
->components
[0].len
=0;
3754 path
->components
[0].data
=NULL
;
3755 dprintk("pathname4: /\n");
3758 dprintk(" status %d", status
);
3763 static int decode_attr_fs_locations(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct nfs4_fs_locations
*res
)
3769 if (unlikely(bitmap
[0] & (FATTR4_WORD0_FS_LOCATIONS
-1U)))
3772 if (unlikely(!(bitmap
[0] & FATTR4_WORD0_FS_LOCATIONS
)))
3774 bitmap
[0] &= ~FATTR4_WORD0_FS_LOCATIONS
;
3776 /* Ignore borken servers that return unrequested attrs */
3777 if (unlikely(res
== NULL
))
3779 dprintk("%s: fsroot:\n", __func__
);
3780 status
= decode_pathname(xdr
, &res
->fs_path
);
3781 if (unlikely(status
!= 0))
3783 p
= xdr_inline_decode(xdr
, 4);
3786 n
= be32_to_cpup(p
);
3787 for (res
->nlocations
= 0; res
->nlocations
< n
; res
->nlocations
++) {
3789 struct nfs4_fs_location
*loc
;
3791 if (res
->nlocations
== NFS4_FS_LOCATIONS_MAXENTRIES
)
3793 loc
= &res
->locations
[res
->nlocations
];
3794 p
= xdr_inline_decode(xdr
, 4);
3797 m
= be32_to_cpup(p
);
3799 dprintk("%s: servers:\n", __func__
);
3800 for (loc
->nservers
= 0; loc
->nservers
< m
; loc
->nservers
++) {
3801 struct nfs4_string
*server
;
3803 if (loc
->nservers
== NFS4_FS_LOCATION_MAXSERVERS
) {
3805 dprintk("%s: using first %u of %u servers "
3806 "returned for location %u\n",
3808 NFS4_FS_LOCATION_MAXSERVERS
,
3809 m
, res
->nlocations
);
3810 for (i
= loc
->nservers
; i
< m
; i
++) {
3813 status
= decode_opaque_inline(xdr
, &len
, &data
);
3814 if (unlikely(status
!= 0))
3819 server
= &loc
->servers
[loc
->nservers
];
3820 status
= decode_opaque_inline(xdr
, &server
->len
, &server
->data
);
3821 if (unlikely(status
!= 0))
3823 dprintk("%s ", server
->data
);
3825 status
= decode_pathname(xdr
, &loc
->rootpath
);
3826 if (unlikely(status
!= 0))
3829 if (res
->nlocations
!= 0)
3830 status
= NFS_ATTR_FATTR_V4_LOCATIONS
;
3832 dprintk("%s: fs_locations done, error = %d\n", __func__
, status
);
3839 static int decode_attr_maxfilesize(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
3845 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXFILESIZE
- 1U)))
3847 if (likely(bitmap
[0] & FATTR4_WORD0_MAXFILESIZE
)) {
3848 p
= xdr_inline_decode(xdr
, 8);
3851 xdr_decode_hyper(p
, res
);
3852 bitmap
[0] &= ~FATTR4_WORD0_MAXFILESIZE
;
3854 dprintk("%s: maxfilesize=%Lu\n", __func__
, (unsigned long long)*res
);
3858 static int decode_attr_maxlink(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *maxlink
)
3864 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXLINK
- 1U)))
3866 if (likely(bitmap
[0] & FATTR4_WORD0_MAXLINK
)) {
3867 p
= xdr_inline_decode(xdr
, 4);
3870 *maxlink
= be32_to_cpup(p
);
3871 bitmap
[0] &= ~FATTR4_WORD0_MAXLINK
;
3873 dprintk("%s: maxlink=%u\n", __func__
, *maxlink
);
3877 static int decode_attr_maxname(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *maxname
)
3883 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXNAME
- 1U)))
3885 if (likely(bitmap
[0] & FATTR4_WORD0_MAXNAME
)) {
3886 p
= xdr_inline_decode(xdr
, 4);
3889 *maxname
= be32_to_cpup(p
);
3890 bitmap
[0] &= ~FATTR4_WORD0_MAXNAME
;
3892 dprintk("%s: maxname=%u\n", __func__
, *maxname
);
3896 static int decode_attr_maxread(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3902 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXREAD
- 1U)))
3904 if (likely(bitmap
[0] & FATTR4_WORD0_MAXREAD
)) {
3906 p
= xdr_inline_decode(xdr
, 8);
3909 xdr_decode_hyper(p
, &maxread
);
3910 if (maxread
> 0x7FFFFFFF)
3911 maxread
= 0x7FFFFFFF;
3912 *res
= (uint32_t)maxread
;
3913 bitmap
[0] &= ~FATTR4_WORD0_MAXREAD
;
3915 dprintk("%s: maxread=%lu\n", __func__
, (unsigned long)*res
);
3919 static int decode_attr_maxwrite(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *res
)
3925 if (unlikely(bitmap
[0] & (FATTR4_WORD0_MAXWRITE
- 1U)))
3927 if (likely(bitmap
[0] & FATTR4_WORD0_MAXWRITE
)) {
3929 p
= xdr_inline_decode(xdr
, 8);
3932 xdr_decode_hyper(p
, &maxwrite
);
3933 if (maxwrite
> 0x7FFFFFFF)
3934 maxwrite
= 0x7FFFFFFF;
3935 *res
= (uint32_t)maxwrite
;
3936 bitmap
[0] &= ~FATTR4_WORD0_MAXWRITE
;
3938 dprintk("%s: maxwrite=%lu\n", __func__
, (unsigned long)*res
);
3942 static int decode_attr_mode(struct xdr_stream
*xdr
, uint32_t *bitmap
, umode_t
*mode
)
3949 if (unlikely(bitmap
[1] & (FATTR4_WORD1_MODE
- 1U)))
3951 if (likely(bitmap
[1] & FATTR4_WORD1_MODE
)) {
3952 p
= xdr_inline_decode(xdr
, 4);
3955 tmp
= be32_to_cpup(p
);
3956 *mode
= tmp
& ~S_IFMT
;
3957 bitmap
[1] &= ~FATTR4_WORD1_MODE
;
3958 ret
= NFS_ATTR_FATTR_MODE
;
3960 dprintk("%s: file mode=0%o\n", __func__
, (unsigned int)*mode
);
3964 static int decode_attr_nlink(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint32_t *nlink
)
3970 if (unlikely(bitmap
[1] & (FATTR4_WORD1_NUMLINKS
- 1U)))
3972 if (likely(bitmap
[1] & FATTR4_WORD1_NUMLINKS
)) {
3973 p
= xdr_inline_decode(xdr
, 4);
3976 *nlink
= be32_to_cpup(p
);
3977 bitmap
[1] &= ~FATTR4_WORD1_NUMLINKS
;
3978 ret
= NFS_ATTR_FATTR_NLINK
;
3980 dprintk("%s: nlink=%u\n", __func__
, (unsigned int)*nlink
);
3984 static ssize_t
decode_nfs4_string(struct xdr_stream
*xdr
,
3985 struct nfs4_string
*name
, gfp_t gfp_flags
)
3989 ret
= xdr_stream_decode_string_dup(xdr
, &name
->data
,
3990 XDR_MAX_NETOBJ
, gfp_flags
);
3997 static int decode_attr_owner(struct xdr_stream
*xdr
, uint32_t *bitmap
,
3998 const struct nfs_server
*server
, kuid_t
*uid
,
3999 struct nfs4_string
*owner_name
)
4004 *uid
= make_kuid(&init_user_ns
, -2);
4005 if (unlikely(bitmap
[1] & (FATTR4_WORD1_OWNER
- 1U)))
4007 if (!(bitmap
[1] & FATTR4_WORD1_OWNER
))
4009 bitmap
[1] &= ~FATTR4_WORD1_OWNER
;
4011 if (owner_name
!= NULL
) {
4012 len
= decode_nfs4_string(xdr
, owner_name
, GFP_NOIO
);
4015 dprintk("%s: name=%s\n", __func__
, owner_name
->data
);
4016 return NFS_ATTR_FATTR_OWNER_NAME
;
4018 len
= xdr_stream_decode_opaque_inline(xdr
, (void **)&p
,
4020 if (len
<= 0 || nfs_map_name_to_uid(server
, p
, len
, uid
) != 0)
4022 dprintk("%s: uid=%d\n", __func__
, (int)from_kuid(&init_user_ns
, *uid
));
4023 return NFS_ATTR_FATTR_OWNER
;
4026 if (len
== -EBADMSG
)
4031 static int decode_attr_group(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4032 const struct nfs_server
*server
, kgid_t
*gid
,
4033 struct nfs4_string
*group_name
)
4038 *gid
= make_kgid(&init_user_ns
, -2);
4039 if (unlikely(bitmap
[1] & (FATTR4_WORD1_OWNER_GROUP
- 1U)))
4041 if (!(bitmap
[1] & FATTR4_WORD1_OWNER_GROUP
))
4043 bitmap
[1] &= ~FATTR4_WORD1_OWNER_GROUP
;
4045 if (group_name
!= NULL
) {
4046 len
= decode_nfs4_string(xdr
, group_name
, GFP_NOIO
);
4049 dprintk("%s: name=%s\n", __func__
, group_name
->data
);
4050 return NFS_ATTR_FATTR_GROUP_NAME
;
4052 len
= xdr_stream_decode_opaque_inline(xdr
, (void **)&p
,
4054 if (len
<= 0 || nfs_map_group_to_gid(server
, p
, len
, gid
) != 0)
4056 dprintk("%s: gid=%d\n", __func__
, (int)from_kgid(&init_user_ns
, *gid
));
4057 return NFS_ATTR_FATTR_GROUP
;
4060 if (len
== -EBADMSG
)
4065 static int decode_attr_rdev(struct xdr_stream
*xdr
, uint32_t *bitmap
, dev_t
*rdev
)
4067 uint32_t major
= 0, minor
= 0;
4072 if (unlikely(bitmap
[1] & (FATTR4_WORD1_RAWDEV
- 1U)))
4074 if (likely(bitmap
[1] & FATTR4_WORD1_RAWDEV
)) {
4077 p
= xdr_inline_decode(xdr
, 8);
4080 major
= be32_to_cpup(p
++);
4081 minor
= be32_to_cpup(p
);
4082 tmp
= MKDEV(major
, minor
);
4083 if (MAJOR(tmp
) == major
&& MINOR(tmp
) == minor
)
4085 bitmap
[1] &= ~ FATTR4_WORD1_RAWDEV
;
4086 ret
= NFS_ATTR_FATTR_RDEV
;
4088 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__
, major
, minor
);
4092 static int decode_attr_space_avail(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
4098 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_AVAIL
- 1U)))
4100 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_AVAIL
)) {
4101 p
= xdr_inline_decode(xdr
, 8);
4104 xdr_decode_hyper(p
, res
);
4105 bitmap
[1] &= ~FATTR4_WORD1_SPACE_AVAIL
;
4107 dprintk("%s: space avail=%Lu\n", __func__
, (unsigned long long)*res
);
4111 static int decode_attr_space_free(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
4117 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_FREE
- 1U)))
4119 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_FREE
)) {
4120 p
= xdr_inline_decode(xdr
, 8);
4123 xdr_decode_hyper(p
, res
);
4124 bitmap
[1] &= ~FATTR4_WORD1_SPACE_FREE
;
4126 dprintk("%s: space free=%Lu\n", __func__
, (unsigned long long)*res
);
4130 static int decode_attr_space_total(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *res
)
4136 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_TOTAL
- 1U)))
4138 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_TOTAL
)) {
4139 p
= xdr_inline_decode(xdr
, 8);
4142 xdr_decode_hyper(p
, res
);
4143 bitmap
[1] &= ~FATTR4_WORD1_SPACE_TOTAL
;
4145 dprintk("%s: space total=%Lu\n", __func__
, (unsigned long long)*res
);
4149 static int decode_attr_space_used(struct xdr_stream
*xdr
, uint32_t *bitmap
, uint64_t *used
)
4155 if (unlikely(bitmap
[1] & (FATTR4_WORD1_SPACE_USED
- 1U)))
4157 if (likely(bitmap
[1] & FATTR4_WORD1_SPACE_USED
)) {
4158 p
= xdr_inline_decode(xdr
, 8);
4161 xdr_decode_hyper(p
, used
);
4162 bitmap
[1] &= ~FATTR4_WORD1_SPACE_USED
;
4163 ret
= NFS_ATTR_FATTR_SPACE_USED
;
4165 dprintk("%s: space used=%Lu\n", __func__
,
4166 (unsigned long long)*used
);
4171 xdr_decode_nfstime4(__be32
*p
, struct timespec64
*t
)
4175 p
= xdr_decode_hyper(p
, &sec
);
4177 t
->tv_nsec
= be32_to_cpup(p
++);
4181 static int decode_attr_time(struct xdr_stream
*xdr
, struct timespec64
*time
)
4185 p
= xdr_inline_decode(xdr
, nfstime4_maxsz
<< 2);
4188 xdr_decode_nfstime4(p
, time
);
4192 static int decode_attr_time_access(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec64
*time
)
4198 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_ACCESS
- 1U)))
4200 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_ACCESS
)) {
4201 status
= decode_attr_time(xdr
, time
);
4203 status
= NFS_ATTR_FATTR_ATIME
;
4204 bitmap
[1] &= ~FATTR4_WORD1_TIME_ACCESS
;
4206 dprintk("%s: atime=%lld\n", __func__
, time
->tv_sec
);
4210 static int decode_attr_time_metadata(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec64
*time
)
4216 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_METADATA
- 1U)))
4218 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_METADATA
)) {
4219 status
= decode_attr_time(xdr
, time
);
4221 status
= NFS_ATTR_FATTR_CTIME
;
4222 bitmap
[1] &= ~FATTR4_WORD1_TIME_METADATA
;
4224 dprintk("%s: ctime=%lld\n", __func__
, time
->tv_sec
);
4228 static int decode_attr_time_delta(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4229 struct timespec64
*time
)
4235 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_DELTA
- 1U)))
4237 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_DELTA
)) {
4238 status
= decode_attr_time(xdr
, time
);
4239 bitmap
[1] &= ~FATTR4_WORD1_TIME_DELTA
;
4241 dprintk("%s: time_delta=%lld %ld\n", __func__
, time
->tv_sec
,
4246 static int decode_attr_security_label(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4247 struct nfs4_label
*label
)
4255 if (unlikely(bitmap
[2] & (FATTR4_WORD2_SECURITY_LABEL
- 1U)))
4257 if (likely(bitmap
[2] & FATTR4_WORD2_SECURITY_LABEL
)) {
4258 p
= xdr_inline_decode(xdr
, 4);
4261 lfs
= be32_to_cpup(p
++);
4262 p
= xdr_inline_decode(xdr
, 4);
4265 pi
= be32_to_cpup(p
++);
4266 p
= xdr_inline_decode(xdr
, 4);
4269 len
= be32_to_cpup(p
++);
4270 p
= xdr_inline_decode(xdr
, len
);
4273 bitmap
[2] &= ~FATTR4_WORD2_SECURITY_LABEL
;
4274 if (len
< NFS4_MAXLABELLEN
) {
4275 if (label
&& label
->len
) {
4276 if (label
->len
< len
)
4278 memcpy(label
->label
, p
, len
);
4282 status
= NFS_ATTR_FATTR_V4_SECURITY_LABEL
;
4285 printk(KERN_WARNING
"%s: label too long (%u)!\n",
4287 if (label
&& label
->label
)
4288 dprintk("%s: label=%.*s, len=%d, PI=%d, LFS=%d\n",
4289 __func__
, label
->len
, (char *)label
->label
,
4290 label
->len
, label
->pi
, label
->lfs
);
4295 static int decode_attr_time_modify(struct xdr_stream
*xdr
, uint32_t *bitmap
, struct timespec64
*time
)
4301 if (unlikely(bitmap
[1] & (FATTR4_WORD1_TIME_MODIFY
- 1U)))
4303 if (likely(bitmap
[1] & FATTR4_WORD1_TIME_MODIFY
)) {
4304 status
= decode_attr_time(xdr
, time
);
4306 status
= NFS_ATTR_FATTR_MTIME
;
4307 bitmap
[1] &= ~FATTR4_WORD1_TIME_MODIFY
;
4309 dprintk("%s: mtime=%lld\n", __func__
, time
->tv_sec
);
4313 static int decode_attr_xattrsupport(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4319 if (unlikely(bitmap
[2] & (FATTR4_WORD2_XATTR_SUPPORT
- 1U)))
4321 if (likely(bitmap
[2] & FATTR4_WORD2_XATTR_SUPPORT
)) {
4322 p
= xdr_inline_decode(xdr
, 4);
4325 *res
= be32_to_cpup(p
);
4326 bitmap
[2] &= ~FATTR4_WORD2_XATTR_SUPPORT
;
4328 dprintk("%s: XATTR support=%s\n", __func__
, str_false_true(*res
== 0));
4332 static int decode_attr_open_arguments(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4333 struct nfs4_open_caps
*res
)
4335 memset(res
, 0, sizeof(*res
));
4336 if (unlikely(bitmap
[2] & (FATTR4_WORD2_OPEN_ARGUMENTS
- 1U)))
4338 if (likely(bitmap
[2] & FATTR4_WORD2_OPEN_ARGUMENTS
)) {
4339 if (decode_bitmap4(xdr
, res
->oa_share_access
, ARRAY_SIZE(res
->oa_share_access
)) < 0)
4341 if (decode_bitmap4(xdr
, res
->oa_share_deny
, ARRAY_SIZE(res
->oa_share_deny
)) < 0)
4343 if (decode_bitmap4(xdr
, res
->oa_share_access_want
, ARRAY_SIZE(res
->oa_share_access_want
)) < 0)
4345 if (decode_bitmap4(xdr
, res
->oa_open_claim
, ARRAY_SIZE(res
->oa_open_claim
)) < 0)
4347 if (decode_bitmap4(xdr
, res
->oa_createmode
, ARRAY_SIZE(res
->oa_createmode
)) < 0)
4349 bitmap
[2] &= ~FATTR4_WORD2_OPEN_ARGUMENTS
;
4354 static int verify_attr_len(struct xdr_stream
*xdr
, unsigned int savep
, uint32_t attrlen
)
4356 unsigned int attrwords
= XDR_QUADLEN(attrlen
);
4357 unsigned int nwords
= (xdr_stream_pos(xdr
) - savep
) >> 2;
4359 if (unlikely(attrwords
!= nwords
)) {
4360 dprintk("%s: server returned incorrect attribute length: "
4364 (attrwords
< nwords
) ? '<' : '>',
4371 static int decode_change_info(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
4375 p
= xdr_inline_decode(xdr
, 20);
4378 cinfo
->atomic
= be32_to_cpup(p
++);
4379 p
= xdr_decode_hyper(p
, &cinfo
->before
);
4380 xdr_decode_hyper(p
, &cinfo
->after
);
4384 static int decode_access(struct xdr_stream
*xdr
, u32
*supported
, u32
*access
)
4390 status
= decode_op_hdr(xdr
, OP_ACCESS
);
4393 p
= xdr_inline_decode(xdr
, 8);
4396 supp
= be32_to_cpup(p
++);
4397 acc
= be32_to_cpup(p
);
4403 static int decode_stateid(struct xdr_stream
*xdr
, nfs4_stateid
*stateid
)
4405 return decode_opaque_fixed(xdr
, stateid
, NFS4_STATEID_SIZE
);
4408 static int decode_open_stateid(struct xdr_stream
*xdr
, nfs4_stateid
*stateid
)
4410 stateid
->type
= NFS4_OPEN_STATEID_TYPE
;
4411 return decode_stateid(xdr
, stateid
);
4414 static int decode_lock_stateid(struct xdr_stream
*xdr
, nfs4_stateid
*stateid
)
4416 stateid
->type
= NFS4_LOCK_STATEID_TYPE
;
4417 return decode_stateid(xdr
, stateid
);
4420 static int decode_delegation_stateid(struct xdr_stream
*xdr
, nfs4_stateid
*stateid
)
4422 stateid
->type
= NFS4_DELEGATION_STATEID_TYPE
;
4423 return decode_stateid(xdr
, stateid
);
4426 static int decode_invalid_stateid(struct xdr_stream
*xdr
, nfs4_stateid
*stateid
)
4430 nfs4_stateid_copy(stateid
, &invalid_stateid
);
4431 return decode_stateid(xdr
, &dummy
);
4434 static int decode_close(struct xdr_stream
*xdr
, struct nfs_closeres
*res
)
4438 status
= decode_op_hdr(xdr
, OP_CLOSE
);
4440 nfs_increment_open_seqid(status
, res
->seqid
);
4442 status
= decode_invalid_stateid(xdr
, &res
->stateid
);
4446 static int decode_verifier(struct xdr_stream
*xdr
, void *verifier
)
4448 return decode_opaque_fixed(xdr
, verifier
, NFS4_VERIFIER_SIZE
);
4451 static int decode_write_verifier(struct xdr_stream
*xdr
, struct nfs_write_verifier
*verifier
)
4453 return decode_opaque_fixed(xdr
, verifier
->data
, NFS4_VERIFIER_SIZE
);
4456 static int decode_commit(struct xdr_stream
*xdr
, struct nfs_commitres
*res
)
4458 struct nfs_writeverf
*verf
= res
->verf
;
4461 status
= decode_op_hdr(xdr
, OP_COMMIT
);
4463 status
= decode_write_verifier(xdr
, &verf
->verifier
);
4465 verf
->committed
= NFS_FILE_SYNC
;
4469 static int decode_create(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
4475 status
= decode_op_hdr(xdr
, OP_CREATE
);
4478 if ((status
= decode_change_info(xdr
, cinfo
)))
4480 p
= xdr_inline_decode(xdr
, 4);
4483 bmlen
= be32_to_cpup(p
);
4484 p
= xdr_inline_decode(xdr
, bmlen
<< 2);
4490 static int decode_server_caps(struct xdr_stream
*xdr
, struct nfs4_server_caps_res
*res
)
4493 uint32_t attrlen
, bitmap
[3] = {0};
4496 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
4498 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
4500 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
4502 if ((status
= decode_attr_supported(xdr
, bitmap
, res
->attr_bitmask
)) != 0)
4504 if ((status
= decode_attr_fh_expire_type(xdr
, bitmap
,
4505 &res
->fh_expire_type
)) != 0)
4507 if ((status
= decode_attr_link_support(xdr
, bitmap
, &res
->has_links
)) != 0)
4509 if ((status
= decode_attr_symlink_support(xdr
, bitmap
, &res
->has_symlinks
)) != 0)
4511 if ((status
= decode_attr_aclsupport(xdr
, bitmap
, &res
->acl_bitmask
)) != 0)
4513 if ((status
= decode_attr_case_insensitive(xdr
, bitmap
, &res
->case_insensitive
)) != 0)
4515 if ((status
= decode_attr_case_preserving(xdr
, bitmap
, &res
->case_preserving
)) != 0)
4517 if ((status
= decode_attr_exclcreat_supported(xdr
, bitmap
,
4518 res
->exclcreat_bitmask
)) != 0)
4520 if ((status
= decode_attr_open_arguments(xdr
, bitmap
, &res
->open_caps
)) != 0)
4522 status
= verify_attr_len(xdr
, savep
, attrlen
);
4524 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
4528 static int decode_statfs(struct xdr_stream
*xdr
, struct nfs_fsstat
*fsstat
)
4531 uint32_t attrlen
, bitmap
[3] = {0};
4534 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
4536 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
4538 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
4541 if ((status
= decode_attr_files_avail(xdr
, bitmap
, &fsstat
->afiles
)) != 0)
4543 if ((status
= decode_attr_files_free(xdr
, bitmap
, &fsstat
->ffiles
)) != 0)
4545 if ((status
= decode_attr_files_total(xdr
, bitmap
, &fsstat
->tfiles
)) != 0)
4549 if (unlikely(bitmap
[0]))
4552 if ((status
= decode_attr_space_avail(xdr
, bitmap
, &fsstat
->abytes
)) != 0)
4554 if ((status
= decode_attr_space_free(xdr
, bitmap
, &fsstat
->fbytes
)) != 0)
4556 if ((status
= decode_attr_space_total(xdr
, bitmap
, &fsstat
->tbytes
)) != 0)
4559 status
= verify_attr_len(xdr
, savep
, attrlen
);
4561 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
4565 static int decode_pathconf(struct xdr_stream
*xdr
, struct nfs_pathconf
*pathconf
)
4568 uint32_t attrlen
, bitmap
[3] = {0};
4571 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
4573 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
4575 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
4578 if ((status
= decode_attr_maxlink(xdr
, bitmap
, &pathconf
->max_link
)) != 0)
4580 if ((status
= decode_attr_maxname(xdr
, bitmap
, &pathconf
->max_namelen
)) != 0)
4583 status
= verify_attr_len(xdr
, savep
, attrlen
);
4585 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
4589 static int decode_threshold_hint(struct xdr_stream
*xdr
,
4597 if (likely(bitmap
[0] & hint_bit
)) {
4598 p
= xdr_inline_decode(xdr
, 8);
4601 xdr_decode_hyper(p
, res
);
4606 static int decode_first_threshold_item4(struct xdr_stream
*xdr
,
4607 struct nfs4_threshold
*res
)
4611 uint32_t bitmap
[3] = {0,}, attrlen
;
4615 p
= xdr_inline_decode(xdr
, 4);
4618 res
->l_type
= be32_to_cpup(p
);
4620 /* thi_hintset bitmap */
4621 status
= decode_attr_bitmap(xdr
, bitmap
);
4625 /* thi_hintlist length */
4626 status
= decode_attr_length(xdr
, &attrlen
, &savep
);
4630 status
= decode_threshold_hint(xdr
, bitmap
, &res
->rd_sz
, THRESHOLD_RD
);
4633 status
= decode_threshold_hint(xdr
, bitmap
, &res
->wr_sz
, THRESHOLD_WR
);
4636 status
= decode_threshold_hint(xdr
, bitmap
, &res
->rd_io_sz
,
4640 status
= decode_threshold_hint(xdr
, bitmap
, &res
->wr_io_sz
,
4645 status
= verify_attr_len(xdr
, savep
, attrlen
);
4646 res
->bm
= bitmap
[0];
4648 dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n",
4649 __func__
, res
->bm
, res
->rd_sz
, res
->wr_sz
, res
->rd_io_sz
,
4652 dprintk("%s ret=%d!\n", __func__
, status
);
4657 * Thresholds on pNFS direct I/O vrs MDS I/O
4659 static int decode_attr_mdsthreshold(struct xdr_stream
*xdr
,
4661 struct nfs4_threshold
*res
)
4667 if (unlikely(bitmap
[2] & (FATTR4_WORD2_MDSTHRESHOLD
- 1U)))
4669 if (bitmap
[2] & FATTR4_WORD2_MDSTHRESHOLD
) {
4670 /* Did the server return an unrequested attribute? */
4671 if (unlikely(res
== NULL
))
4673 p
= xdr_inline_decode(xdr
, 4);
4676 num
= be32_to_cpup(p
);
4680 printk(KERN_INFO
"%s: Warning: Multiple pNFS layout "
4681 "drivers per filesystem not supported\n",
4684 status
= decode_first_threshold_item4(xdr
, res
);
4685 bitmap
[2] &= ~FATTR4_WORD2_MDSTHRESHOLD
;
4690 static int decode_getfattr_attrs(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4691 struct nfs_fattr
*fattr
, struct nfs_fh
*fh
,
4692 struct nfs4_fs_locations
*fs_loc
, const struct nfs_server
*server
)
4699 status
= decode_attr_type(xdr
, bitmap
, &type
);
4704 fattr
->mode
|= nfs_type2fmt
[type
];
4705 fattr
->valid
|= status
;
4708 status
= decode_attr_change(xdr
, bitmap
, &fattr
->change_attr
);
4711 fattr
->valid
|= status
;
4713 status
= decode_attr_size(xdr
, bitmap
, &fattr
->size
);
4716 fattr
->valid
|= status
;
4718 status
= decode_attr_fsid(xdr
, bitmap
, &fattr
->fsid
);
4721 fattr
->valid
|= status
;
4724 status
= decode_attr_error(xdr
, bitmap
, &err
);
4728 status
= decode_attr_filehandle(xdr
, bitmap
, fh
);
4732 status
= decode_attr_fileid(xdr
, bitmap
, &fattr
->fileid
);
4735 fattr
->valid
|= status
;
4737 status
= decode_attr_fs_locations(xdr
, bitmap
, fs_loc
);
4740 fattr
->valid
|= status
;
4743 if (unlikely(bitmap
[0]))
4746 status
= decode_attr_mode(xdr
, bitmap
, &fmode
);
4750 fattr
->mode
|= fmode
;
4751 fattr
->valid
|= status
;
4754 status
= decode_attr_nlink(xdr
, bitmap
, &fattr
->nlink
);
4757 fattr
->valid
|= status
;
4759 status
= decode_attr_owner(xdr
, bitmap
, server
, &fattr
->uid
, fattr
->owner_name
);
4762 fattr
->valid
|= status
;
4764 status
= decode_attr_group(xdr
, bitmap
, server
, &fattr
->gid
, fattr
->group_name
);
4767 fattr
->valid
|= status
;
4769 status
= decode_attr_rdev(xdr
, bitmap
, &fattr
->rdev
);
4772 fattr
->valid
|= status
;
4774 status
= decode_attr_space_used(xdr
, bitmap
, &fattr
->du
.nfs3
.used
);
4777 fattr
->valid
|= status
;
4779 status
= decode_attr_time_access(xdr
, bitmap
, &fattr
->atime
);
4782 fattr
->valid
|= status
;
4784 status
= decode_attr_time_metadata(xdr
, bitmap
, &fattr
->ctime
);
4787 fattr
->valid
|= status
;
4789 status
= decode_attr_time_modify(xdr
, bitmap
, &fattr
->mtime
);
4792 fattr
->valid
|= status
;
4794 status
= decode_attr_mounted_on_fileid(xdr
, bitmap
, &fattr
->mounted_on_fileid
);
4797 fattr
->valid
|= status
;
4800 if (unlikely(bitmap
[1]))
4803 status
= decode_attr_mdsthreshold(xdr
, bitmap
, fattr
->mdsthreshold
);
4807 status
= decode_attr_security_label(xdr
, bitmap
, fattr
->label
);
4810 fattr
->valid
|= status
;
4813 dprintk("%s: xdr returned %d\n", __func__
, -status
);
4817 static int decode_getfattr_generic(struct xdr_stream
*xdr
, struct nfs_fattr
*fattr
,
4818 struct nfs_fh
*fh
, struct nfs4_fs_locations
*fs_loc
,
4819 const struct nfs_server
*server
)
4826 status
= decode_op_hdr(xdr
, OP_GETATTR
);
4830 status
= decode_attr_bitmap(xdr
, bitmap
);
4834 status
= decode_attr_length(xdr
, &attrlen
, &savep
);
4838 status
= decode_getfattr_attrs(xdr
, bitmap
, fattr
, fh
, fs_loc
, server
);
4842 status
= verify_attr_len(xdr
, savep
, attrlen
);
4844 dprintk("%s: xdr returned %d\n", __func__
, -status
);
4848 static int decode_getfattr(struct xdr_stream
*xdr
, struct nfs_fattr
*fattr
,
4849 const struct nfs_server
*server
)
4851 return decode_getfattr_generic(xdr
, fattr
, NULL
, NULL
, server
);
4855 * Decode potentially multiple layout types.
4857 static int decode_pnfs_layout_types(struct xdr_stream
*xdr
,
4858 struct nfs_fsinfo
*fsinfo
)
4863 p
= xdr_inline_decode(xdr
, 4);
4866 fsinfo
->nlayouttypes
= be32_to_cpup(p
);
4868 /* pNFS is not supported by the underlying file system */
4869 if (fsinfo
->nlayouttypes
== 0)
4872 /* Decode and set first layout type, move xdr->p past unused types */
4873 p
= xdr_inline_decode(xdr
, fsinfo
->nlayouttypes
* 4);
4877 /* If we get too many, then just cap it at the max */
4878 if (fsinfo
->nlayouttypes
> NFS_MAX_LAYOUT_TYPES
) {
4879 printk(KERN_INFO
"NFS: %s: Warning: Too many (%u) pNFS layout types\n",
4880 __func__
, fsinfo
->nlayouttypes
);
4881 fsinfo
->nlayouttypes
= NFS_MAX_LAYOUT_TYPES
;
4884 for(i
= 0; i
< fsinfo
->nlayouttypes
; ++i
)
4885 fsinfo
->layouttype
[i
] = be32_to_cpup(p
++);
4890 * The type of file system exported.
4891 * Note we must ensure that layouttype is set in any non-error case.
4893 static int decode_attr_pnfstype(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4894 struct nfs_fsinfo
*fsinfo
)
4898 dprintk("%s: bitmap is %x\n", __func__
, bitmap
[1]);
4899 if (unlikely(bitmap
[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES
- 1U)))
4901 if (bitmap
[1] & FATTR4_WORD1_FS_LAYOUT_TYPES
) {
4902 status
= decode_pnfs_layout_types(xdr
, fsinfo
);
4903 bitmap
[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES
;
4909 * The prefered block size for layout directed io
4911 static int decode_attr_layout_blksize(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4916 dprintk("%s: bitmap is %x\n", __func__
, bitmap
[2]);
4918 if (bitmap
[2] & FATTR4_WORD2_LAYOUT_BLKSIZE
) {
4919 p
= xdr_inline_decode(xdr
, 4);
4922 *res
= be32_to_cpup(p
);
4923 bitmap
[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE
;
4929 * The granularity of a CLONE operation.
4931 static int decode_attr_clone_blksize(struct xdr_stream
*xdr
, uint32_t *bitmap
,
4936 dprintk("%s: bitmap is %x\n", __func__
, bitmap
[2]);
4938 if (bitmap
[2] & FATTR4_WORD2_CLONE_BLKSIZE
) {
4939 p
= xdr_inline_decode(xdr
, 4);
4942 *res
= be32_to_cpup(p
);
4943 bitmap
[2] &= ~FATTR4_WORD2_CLONE_BLKSIZE
;
4948 static int decode_attr_change_attr_type(struct xdr_stream
*xdr
,
4950 enum nfs4_change_attr_type
*res
)
4952 u32 tmp
= NFS4_CHANGE_TYPE_IS_UNDEFINED
;
4954 dprintk("%s: bitmap is %x\n", __func__
, bitmap
[2]);
4955 if (bitmap
[2] & FATTR4_WORD2_CHANGE_ATTR_TYPE
) {
4956 if (xdr_stream_decode_u32(xdr
, &tmp
))
4958 bitmap
[2] &= ~FATTR4_WORD2_CHANGE_ATTR_TYPE
;
4962 case NFS4_CHANGE_TYPE_IS_MONOTONIC_INCR
:
4963 case NFS4_CHANGE_TYPE_IS_VERSION_COUNTER
:
4964 case NFS4_CHANGE_TYPE_IS_VERSION_COUNTER_NOPNFS
:
4965 case NFS4_CHANGE_TYPE_IS_TIME_METADATA
:
4969 *res
= NFS4_CHANGE_TYPE_IS_UNDEFINED
;
4974 static int decode_fsinfo(struct xdr_stream
*xdr
, struct nfs_fsinfo
*fsinfo
)
4977 uint32_t attrlen
, bitmap
[3];
4980 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
4982 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
4984 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
4987 fsinfo
->rtmult
= fsinfo
->wtmult
= 512; /* ??? */
4989 if ((status
= decode_attr_lease_time(xdr
, bitmap
, &fsinfo
->lease_time
)) != 0)
4991 if ((status
= decode_attr_maxfilesize(xdr
, bitmap
, &fsinfo
->maxfilesize
)) != 0)
4993 if ((status
= decode_attr_maxread(xdr
, bitmap
, &fsinfo
->rtmax
)) != 0)
4995 fsinfo
->rtpref
= fsinfo
->dtpref
= fsinfo
->rtmax
;
4996 if ((status
= decode_attr_maxwrite(xdr
, bitmap
, &fsinfo
->wtmax
)) != 0)
4998 fsinfo
->wtpref
= fsinfo
->wtmax
;
5001 if (unlikely(bitmap
[0]))
5004 status
= decode_attr_time_delta(xdr
, bitmap
, &fsinfo
->time_delta
);
5007 status
= decode_attr_pnfstype(xdr
, bitmap
, fsinfo
);
5012 if (unlikely(bitmap
[1]))
5015 status
= decode_attr_layout_blksize(xdr
, bitmap
, &fsinfo
->blksize
);
5018 status
= decode_attr_clone_blksize(xdr
, bitmap
, &fsinfo
->clone_blksize
);
5022 status
= decode_attr_change_attr_type(xdr
, bitmap
,
5023 &fsinfo
->change_attr_type
);
5027 status
= decode_attr_xattrsupport(xdr
, bitmap
,
5028 &fsinfo
->xattr_support
);
5032 status
= verify_attr_len(xdr
, savep
, attrlen
);
5034 dprintk("%s: xdr returned %d!\n", __func__
, -status
);
5038 static int decode_getfh(struct xdr_stream
*xdr
, struct nfs_fh
*fh
)
5044 /* Zero handle first to allow comparisons */
5045 memset(fh
, 0, sizeof(*fh
));
5047 status
= decode_op_hdr(xdr
, OP_GETFH
);
5051 p
= xdr_inline_decode(xdr
, 4);
5054 len
= be32_to_cpup(p
);
5055 if (len
> NFS4_FHSIZE
|| len
== 0) {
5056 trace_nfs4_xdr_bad_filehandle(xdr
, OP_GETFH
, NFS4ERR_BADHANDLE
);
5060 p
= xdr_inline_decode(xdr
, len
);
5063 memcpy(fh
->data
, p
, len
);
5067 static int decode_link(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
5071 status
= decode_op_hdr(xdr
, OP_LINK
);
5074 return decode_change_info(xdr
, cinfo
);
5078 * We create the owner, so we know a proper owner.id length is 4.
5080 static int decode_lock_denied (struct xdr_stream
*xdr
, struct file_lock
*fl
)
5082 uint64_t offset
, length
, clientid
;
5084 uint32_t namelen
, type
;
5086 p
= xdr_inline_decode(xdr
, 32); /* read 32 bytes */
5089 p
= xdr_decode_hyper(p
, &offset
); /* read 2 8-byte long words */
5090 p
= xdr_decode_hyper(p
, &length
);
5091 type
= be32_to_cpup(p
++); /* 4 byte read */
5092 if (fl
!= NULL
) { /* manipulate file lock */
5093 fl
->fl_start
= (loff_t
)offset
;
5094 fl
->fl_end
= fl
->fl_start
+ (loff_t
)length
- 1;
5095 if (length
== ~(uint64_t)0)
5096 fl
->fl_end
= OFFSET_MAX
;
5097 fl
->c
.flc_type
= F_WRLCK
;
5099 fl
->c
.flc_type
= F_RDLCK
;
5102 p
= xdr_decode_hyper(p
, &clientid
); /* read 8 bytes */
5103 namelen
= be32_to_cpup(p
); /* read 4 bytes */ /* have read all 32 bytes now */
5104 p
= xdr_inline_decode(xdr
, namelen
); /* variable size field */
5107 return -NFS4ERR_DENIED
;
5110 static int decode_lock(struct xdr_stream
*xdr
, struct nfs_lock_res
*res
)
5114 status
= decode_op_hdr(xdr
, OP_LOCK
);
5118 status
= decode_lock_stateid(xdr
, &res
->stateid
);
5119 if (unlikely(status
))
5121 } else if (status
== -NFS4ERR_DENIED
)
5122 status
= decode_lock_denied(xdr
, NULL
);
5123 if (res
->open_seqid
!= NULL
)
5124 nfs_increment_open_seqid(status
, res
->open_seqid
);
5125 nfs_increment_lock_seqid(status
, res
->lock_seqid
);
5130 static int decode_lockt(struct xdr_stream
*xdr
, struct nfs_lockt_res
*res
)
5133 status
= decode_op_hdr(xdr
, OP_LOCKT
);
5134 if (status
== -NFS4ERR_DENIED
)
5135 return decode_lock_denied(xdr
, res
->denied
);
5139 static int decode_locku(struct xdr_stream
*xdr
, struct nfs_locku_res
*res
)
5143 status
= decode_op_hdr(xdr
, OP_LOCKU
);
5145 nfs_increment_lock_seqid(status
, res
->seqid
);
5147 status
= decode_lock_stateid(xdr
, &res
->stateid
);
5151 static int decode_release_lockowner(struct xdr_stream
*xdr
)
5153 return decode_op_hdr(xdr
, OP_RELEASE_LOCKOWNER
);
5156 static int decode_lookup(struct xdr_stream
*xdr
)
5158 return decode_op_hdr(xdr
, OP_LOOKUP
);
5161 static int decode_lookupp(struct xdr_stream
*xdr
)
5163 return decode_op_hdr(xdr
, OP_LOOKUPP
);
5166 /* This is too sick! */
5167 static int decode_space_limit(struct xdr_stream
*xdr
,
5168 unsigned long *pagemod_limit
)
5171 uint32_t limit_type
, nblocks
, blocksize
;
5174 p
= xdr_inline_decode(xdr
, 12);
5177 limit_type
= be32_to_cpup(p
++);
5178 switch (limit_type
) {
5179 case NFS4_LIMIT_SIZE
:
5180 xdr_decode_hyper(p
, &maxsize
);
5182 case NFS4_LIMIT_BLOCKS
:
5183 nblocks
= be32_to_cpup(p
++);
5184 blocksize
= be32_to_cpup(p
);
5185 maxsize
= (uint64_t)nblocks
* (uint64_t)blocksize
;
5187 maxsize
>>= PAGE_SHIFT
;
5188 *pagemod_limit
= min_t(u64
, maxsize
, ULONG_MAX
);
5192 static int decode_rw_delegation(struct xdr_stream
*xdr
,
5193 struct nfs4_open_delegation
*res
)
5198 status
= decode_delegation_stateid(xdr
, &res
->stateid
);
5199 if (unlikely(status
))
5201 p
= xdr_inline_decode(xdr
, 4);
5204 res
->do_recall
= be32_to_cpup(p
);
5206 switch (res
->open_delegation_type
) {
5207 case NFS4_OPEN_DELEGATE_READ
:
5208 case NFS4_OPEN_DELEGATE_READ_ATTRS_DELEG
:
5209 res
->type
= FMODE_READ
;
5211 case NFS4_OPEN_DELEGATE_WRITE
:
5212 case NFS4_OPEN_DELEGATE_WRITE_ATTRS_DELEG
:
5213 res
->type
= FMODE_WRITE
|FMODE_READ
;
5214 if (decode_space_limit(xdr
, &res
->pagemod_limit
) < 0)
5217 return decode_ace(xdr
, NULL
);
5220 static int decode_no_delegation(struct xdr_stream
*xdr
,
5221 struct nfs4_open_delegation
*res
)
5225 p
= xdr_inline_decode(xdr
, 4);
5228 res
->why_no_delegation
= be32_to_cpup(p
);
5229 switch (res
->why_no_delegation
) {
5230 case WND4_CONTENTION
:
5232 p
= xdr_inline_decode(xdr
, 4);
5235 res
->will_notify
= be32_to_cpup(p
);
5240 static int decode_delegation(struct xdr_stream
*xdr
,
5241 struct nfs4_open_delegation
*res
)
5245 p
= xdr_inline_decode(xdr
, 4);
5248 res
->open_delegation_type
= be32_to_cpup(p
);
5249 switch (res
->open_delegation_type
) {
5250 case NFS4_OPEN_DELEGATE_NONE
:
5252 case NFS4_OPEN_DELEGATE_READ
:
5253 case NFS4_OPEN_DELEGATE_WRITE
:
5254 case NFS4_OPEN_DELEGATE_READ_ATTRS_DELEG
:
5255 case NFS4_OPEN_DELEGATE_WRITE_ATTRS_DELEG
:
5256 return decode_rw_delegation(xdr
, res
);
5257 case NFS4_OPEN_DELEGATE_NONE_EXT
:
5258 return decode_no_delegation(xdr
, res
);
5263 static int decode_open(struct xdr_stream
*xdr
, struct nfs_openres
*res
)
5266 uint32_t savewords
, bmlen
, i
;
5269 if (!__decode_op_hdr(xdr
, OP_OPEN
, &status
))
5271 nfs_increment_open_seqid(status
, res
->seqid
);
5274 status
= decode_open_stateid(xdr
, &res
->stateid
);
5275 if (unlikely(status
))
5278 decode_change_info(xdr
, &res
->cinfo
);
5280 p
= xdr_inline_decode(xdr
, 8);
5283 res
->rflags
= be32_to_cpup(p
++);
5284 bmlen
= be32_to_cpup(p
);
5288 p
= xdr_inline_decode(xdr
, bmlen
<< 2);
5291 savewords
= min_t(uint32_t, bmlen
, NFS4_BITMAP_SIZE
);
5292 for (i
= 0; i
< savewords
; ++i
)
5293 res
->attrset
[i
] = be32_to_cpup(p
++);
5294 for (; i
< NFS4_BITMAP_SIZE
; i
++)
5295 res
->attrset
[i
] = 0;
5297 return decode_delegation(xdr
, &res
->delegation
);
5299 dprintk("%s: Bitmap too large! Length = %u\n", __func__
, bmlen
);
5303 static int decode_open_confirm(struct xdr_stream
*xdr
, struct nfs_open_confirmres
*res
)
5307 status
= decode_op_hdr(xdr
, OP_OPEN_CONFIRM
);
5309 nfs_increment_open_seqid(status
, res
->seqid
);
5311 status
= decode_open_stateid(xdr
, &res
->stateid
);
5315 static int decode_open_downgrade(struct xdr_stream
*xdr
, struct nfs_closeres
*res
)
5319 status
= decode_op_hdr(xdr
, OP_OPEN_DOWNGRADE
);
5321 nfs_increment_open_seqid(status
, res
->seqid
);
5323 status
= decode_open_stateid(xdr
, &res
->stateid
);
5327 static int decode_putfh(struct xdr_stream
*xdr
)
5329 return decode_op_hdr(xdr
, OP_PUTFH
);
5332 static int decode_putrootfh(struct xdr_stream
*xdr
)
5334 return decode_op_hdr(xdr
, OP_PUTROOTFH
);
5337 static int decode_read(struct xdr_stream
*xdr
, struct rpc_rqst
*req
,
5338 struct nfs_pgio_res
*res
)
5341 uint32_t count
, eof
, recvd
;
5344 status
= decode_op_hdr(xdr
, OP_READ
);
5347 p
= xdr_inline_decode(xdr
, 8);
5350 eof
= be32_to_cpup(p
++);
5351 count
= be32_to_cpup(p
);
5352 recvd
= xdr_read_pages(xdr
, count
);
5353 if (count
> recvd
) {
5354 dprintk("NFS: server cheating in read reply: "
5355 "count %u > recvd %u\n", count
, recvd
);
5364 static int decode_readdir(struct xdr_stream
*xdr
, struct rpc_rqst
*req
, struct nfs4_readdir_res
*readdir
)
5369 status
= decode_op_hdr(xdr
, OP_READDIR
);
5371 status
= decode_verifier(xdr
, readdir
->verifier
.data
);
5372 if (unlikely(status
))
5374 memcpy(verf
, readdir
->verifier
.data
, sizeof(verf
));
5375 dprintk("%s: verifier = %08x:%08x\n",
5376 __func__
, verf
[0], verf
[1]);
5377 return xdr_read_pages(xdr
, xdr
->buf
->page_len
);
5380 static int decode_readlink(struct xdr_stream
*xdr
, struct rpc_rqst
*req
)
5382 struct xdr_buf
*rcvbuf
= &req
->rq_rcv_buf
;
5387 status
= decode_op_hdr(xdr
, OP_READLINK
);
5391 /* Convert length of symlink */
5392 p
= xdr_inline_decode(xdr
, 4);
5395 len
= be32_to_cpup(p
);
5396 if (len
>= rcvbuf
->page_len
|| len
<= 0) {
5397 dprintk("nfs: server returned giant symlink!\n");
5398 return -ENAMETOOLONG
;
5400 recvd
= xdr_read_pages(xdr
, len
);
5402 dprintk("NFS: server cheating in readlink reply: "
5403 "count %u > recvd %u\n", len
, recvd
);
5407 * The XDR encode routine has set things up so that
5408 * the link text will be copied directly into the
5409 * buffer. We just have to do overflow-checking,
5410 * and null-terminate the text (the VFS expects
5411 * null-termination).
5413 xdr_terminate_string(rcvbuf
, len
);
5417 static int decode_remove(struct xdr_stream
*xdr
, struct nfs4_change_info
*cinfo
)
5421 status
= decode_op_hdr(xdr
, OP_REMOVE
);
5424 status
= decode_change_info(xdr
, cinfo
);
5429 static int decode_rename(struct xdr_stream
*xdr
, struct nfs4_change_info
*old_cinfo
,
5430 struct nfs4_change_info
*new_cinfo
)
5434 status
= decode_op_hdr(xdr
, OP_RENAME
);
5437 if ((status
= decode_change_info(xdr
, old_cinfo
)))
5439 status
= decode_change_info(xdr
, new_cinfo
);
5444 static int decode_renew(struct xdr_stream
*xdr
)
5446 return decode_op_hdr(xdr
, OP_RENEW
);
5450 decode_restorefh(struct xdr_stream
*xdr
)
5452 return decode_op_hdr(xdr
, OP_RESTOREFH
);
5455 static int decode_getacl(struct xdr_stream
*xdr
, struct rpc_rqst
*req
,
5456 struct nfs_getaclres
*res
, enum nfs4_acl_type type
)
5464 if ((status
= decode_op_hdr(xdr
, OP_GETATTR
)) != 0)
5467 xdr_enter_page(xdr
, xdr
->buf
->page_len
);
5469 if ((status
= decode_attr_bitmap(xdr
, bitmap
)) != 0)
5471 if ((status
= decode_attr_length(xdr
, &attrlen
, &savep
)) != 0)
5476 if (unlikely(bitmap
[0] & (FATTR4_WORD0_ACL
- 1U)))
5478 if (!(bitmap
[0] & FATTR4_WORD0_ACL
))
5482 if (unlikely(bitmap
[0] || bitmap
[1] & (FATTR4_WORD1_DACL
- 1U)))
5484 if (!(bitmap
[1] & FATTR4_WORD1_DACL
))
5488 if (unlikely(bitmap
[0] || bitmap
[1] & (FATTR4_WORD1_SACL
- 1U)))
5490 if (!(bitmap
[1] & FATTR4_WORD1_SACL
))
5494 /* The bitmap (xdr len + bitmaps) and the attr xdr len words
5495 * are stored with the acl data to handle the problem of
5496 * variable length bitmaps.*/
5497 res
->acl_data_offset
= xdr_page_pos(xdr
);
5498 res
->acl_len
= attrlen
;
5500 /* Check for receive buffer overflow */
5501 if (res
->acl_len
> xdr_stream_remaining(xdr
) ||
5502 res
->acl_len
+ res
->acl_data_offset
> xdr
->buf
->page_len
) {
5503 res
->acl_flags
|= NFS4_ACL_TRUNC
;
5504 dprintk("NFS: acl reply: attrlen %u > page_len %zu\n",
5505 attrlen
, xdr_stream_remaining(xdr
));
5512 decode_savefh(struct xdr_stream
*xdr
)
5514 return decode_op_hdr(xdr
, OP_SAVEFH
);
5517 static int decode_setattr(struct xdr_stream
*xdr
)
5521 status
= decode_op_hdr(xdr
, OP_SETATTR
);
5524 if (decode_bitmap4(xdr
, NULL
, 0) >= 0)
5529 static int decode_delegattr(struct xdr_stream
*xdr
)
5531 return decode_setattr(xdr
);
5534 static int decode_setclientid(struct xdr_stream
*xdr
, struct nfs4_setclientid_res
*res
)
5540 p
= xdr_inline_decode(xdr
, 8);
5543 opnum
= be32_to_cpup(p
++);
5544 if (opnum
!= OP_SETCLIENTID
) {
5545 dprintk("nfs: decode_setclientid: Server returned operation"
5549 nfserr
= be32_to_cpup(p
);
5550 if (nfserr
== NFS_OK
) {
5551 p
= xdr_inline_decode(xdr
, 8 + NFS4_VERIFIER_SIZE
);
5554 p
= xdr_decode_hyper(p
, &res
->clientid
);
5555 memcpy(res
->confirm
.data
, p
, NFS4_VERIFIER_SIZE
);
5556 } else if (nfserr
== NFSERR_CLID_INUSE
) {
5559 /* skip netid string */
5560 p
= xdr_inline_decode(xdr
, 4);
5563 len
= be32_to_cpup(p
);
5564 p
= xdr_inline_decode(xdr
, len
);
5568 /* skip uaddr string */
5569 p
= xdr_inline_decode(xdr
, 4);
5572 len
= be32_to_cpup(p
);
5573 p
= xdr_inline_decode(xdr
, len
);
5576 return -NFSERR_CLID_INUSE
;
5578 return nfs4_stat_to_errno(nfserr
);
5583 static int decode_setclientid_confirm(struct xdr_stream
*xdr
)
5585 return decode_op_hdr(xdr
, OP_SETCLIENTID_CONFIRM
);
5588 static int decode_write(struct xdr_stream
*xdr
, struct nfs_pgio_res
*res
)
5593 status
= decode_op_hdr(xdr
, OP_WRITE
);
5597 p
= xdr_inline_decode(xdr
, 8);
5600 res
->count
= be32_to_cpup(p
++);
5601 res
->verf
->committed
= be32_to_cpup(p
++);
5602 return decode_write_verifier(xdr
, &res
->verf
->verifier
);
5605 static int decode_delegreturn(struct xdr_stream
*xdr
)
5607 return decode_op_hdr(xdr
, OP_DELEGRETURN
);
5610 static int decode_secinfo_gss(struct xdr_stream
*xdr
,
5611 struct nfs4_secinfo4
*flavor
)
5616 p
= xdr_inline_decode(xdr
, 4);
5619 oid_len
= be32_to_cpup(p
);
5620 if (oid_len
> GSS_OID_MAX_LEN
)
5623 p
= xdr_inline_decode(xdr
, oid_len
);
5626 memcpy(flavor
->flavor_info
.oid
.data
, p
, oid_len
);
5627 flavor
->flavor_info
.oid
.len
= oid_len
;
5629 p
= xdr_inline_decode(xdr
, 8);
5632 flavor
->flavor_info
.qop
= be32_to_cpup(p
++);
5633 flavor
->flavor_info
.service
= be32_to_cpup(p
);
5638 static int decode_secinfo_common(struct xdr_stream
*xdr
, struct nfs4_secinfo_res
*res
)
5640 struct nfs4_secinfo4
*sec_flavor
;
5641 unsigned int i
, num_flavors
;
5645 p
= xdr_inline_decode(xdr
, 4);
5649 res
->flavors
->num_flavors
= 0;
5650 num_flavors
= be32_to_cpup(p
);
5652 for (i
= 0; i
< num_flavors
; i
++) {
5653 sec_flavor
= &res
->flavors
->flavors
[i
];
5654 if ((char *)&sec_flavor
[1] - (char *)res
->flavors
> PAGE_SIZE
)
5657 p
= xdr_inline_decode(xdr
, 4);
5660 sec_flavor
->flavor
= be32_to_cpup(p
);
5662 if (sec_flavor
->flavor
== RPC_AUTH_GSS
) {
5663 status
= decode_secinfo_gss(xdr
, sec_flavor
);
5667 res
->flavors
->num_flavors
++;
5675 static int decode_secinfo(struct xdr_stream
*xdr
, struct nfs4_secinfo_res
*res
)
5677 int status
= decode_op_hdr(xdr
, OP_SECINFO
);
5680 return decode_secinfo_common(xdr
, res
);
5683 #if defined(CONFIG_NFS_V4_1)
5684 static int decode_secinfo_no_name(struct xdr_stream
*xdr
, struct nfs4_secinfo_res
*res
)
5686 int status
= decode_op_hdr(xdr
, OP_SECINFO_NO_NAME
);
5689 return decode_secinfo_common(xdr
, res
);
5692 static int decode_op_map(struct xdr_stream
*xdr
, struct nfs4_op_map
*op_map
)
5694 if (xdr_stream_decode_uint32_array(xdr
, op_map
->u
.words
,
5695 ARRAY_SIZE(op_map
->u
.words
)) < 0)
5700 static int decode_exchange_id(struct xdr_stream
*xdr
,
5701 struct nfs41_exchange_id_res
*res
)
5707 uint32_t impl_id_count
;
5709 status
= decode_op_hdr(xdr
, OP_EXCHANGE_ID
);
5713 p
= xdr_inline_decode(xdr
, 8);
5716 xdr_decode_hyper(p
, &res
->clientid
);
5717 p
= xdr_inline_decode(xdr
, 12);
5720 res
->seqid
= be32_to_cpup(p
++);
5721 res
->flags
= be32_to_cpup(p
++);
5723 res
->state_protect
.how
= be32_to_cpup(p
);
5724 switch (res
->state_protect
.how
) {
5728 status
= decode_op_map(xdr
, &res
->state_protect
.enforce
);
5731 status
= decode_op_map(xdr
, &res
->state_protect
.allow
);
5740 /* server_owner4.so_minor_id */
5741 p
= xdr_inline_decode(xdr
, 8);
5744 p
= xdr_decode_hyper(p
, &res
->server_owner
->minor_id
);
5746 /* server_owner4.so_major_id */
5747 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
5748 if (unlikely(status
))
5750 memcpy(res
->server_owner
->major_id
, dummy_str
, dummy
);
5751 res
->server_owner
->major_id_sz
= dummy
;
5754 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
5755 if (unlikely(status
))
5757 memcpy(res
->server_scope
->server_scope
, dummy_str
, dummy
);
5758 res
->server_scope
->server_scope_sz
= dummy
;
5760 /* Implementation Id */
5761 p
= xdr_inline_decode(xdr
, 4);
5764 impl_id_count
= be32_to_cpup(p
++);
5766 if (impl_id_count
) {
5768 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
5769 if (unlikely(status
))
5771 memcpy(res
->impl_id
->domain
, dummy_str
, dummy
);
5774 status
= decode_opaque_inline(xdr
, &dummy
, &dummy_str
);
5775 if (unlikely(status
))
5777 memcpy(res
->impl_id
->name
, dummy_str
, dummy
);
5780 p
= xdr_inline_decode(xdr
, 12);
5783 p
= xdr_decode_hyper(p
, &res
->impl_id
->date
.seconds
);
5784 res
->impl_id
->date
.nseconds
= be32_to_cpup(p
);
5786 /* if there's more than one entry, ignore the rest */
5791 static int decode_chan_attrs(struct xdr_stream
*xdr
,
5792 struct nfs4_channel_attrs
*attrs
)
5797 p
= xdr_inline_decode(xdr
, 28);
5800 val
= be32_to_cpup(p
++); /* headerpadsz */
5802 return -EINVAL
; /* no support for header padding yet */
5803 attrs
->max_rqst_sz
= be32_to_cpup(p
++);
5804 attrs
->max_resp_sz
= be32_to_cpup(p
++);
5805 attrs
->max_resp_sz_cached
= be32_to_cpup(p
++);
5806 attrs
->max_ops
= be32_to_cpup(p
++);
5807 attrs
->max_reqs
= be32_to_cpup(p
++);
5808 nr_attrs
= be32_to_cpup(p
);
5809 if (unlikely(nr_attrs
> 1)) {
5810 printk(KERN_WARNING
"NFS: %s: Invalid rdma channel attrs "
5811 "count %u\n", __func__
, nr_attrs
);
5814 if (nr_attrs
== 1) {
5815 p
= xdr_inline_decode(xdr
, 4); /* skip rdma_attrs */
5822 static int decode_sessionid(struct xdr_stream
*xdr
, struct nfs4_sessionid
*sid
)
5824 return decode_opaque_fixed(xdr
, sid
->data
, NFS4_MAX_SESSIONID_LEN
);
5827 static int decode_bind_conn_to_session(struct xdr_stream
*xdr
,
5828 struct nfs41_bind_conn_to_session_res
*res
)
5833 status
= decode_op_hdr(xdr
, OP_BIND_CONN_TO_SESSION
);
5835 status
= decode_sessionid(xdr
, &res
->sessionid
);
5836 if (unlikely(status
))
5839 /* dir flags, rdma mode bool */
5840 p
= xdr_inline_decode(xdr
, 8);
5844 res
->dir
= be32_to_cpup(p
++);
5845 if (res
->dir
== 0 || res
->dir
> NFS4_CDFS4_BOTH
)
5847 if (be32_to_cpup(p
) == 0)
5848 res
->use_conn_in_rdma_mode
= false;
5850 res
->use_conn_in_rdma_mode
= true;
5855 static int decode_create_session(struct xdr_stream
*xdr
,
5856 struct nfs41_create_session_res
*res
)
5861 status
= decode_op_hdr(xdr
, OP_CREATE_SESSION
);
5863 status
= decode_sessionid(xdr
, &res
->sessionid
);
5864 if (unlikely(status
))
5868 p
= xdr_inline_decode(xdr
, 8);
5871 res
->seqid
= be32_to_cpup(p
++);
5872 res
->flags
= be32_to_cpup(p
);
5874 /* Channel attributes */
5875 status
= decode_chan_attrs(xdr
, &res
->fc_attrs
);
5877 status
= decode_chan_attrs(xdr
, &res
->bc_attrs
);
5881 static int decode_destroy_session(struct xdr_stream
*xdr
, void *dummy
)
5883 return decode_op_hdr(xdr
, OP_DESTROY_SESSION
);
5886 static int decode_destroy_clientid(struct xdr_stream
*xdr
, void *dummy
)
5888 return decode_op_hdr(xdr
, OP_DESTROY_CLIENTID
);
5891 static int decode_reclaim_complete(struct xdr_stream
*xdr
, void *dummy
)
5893 return decode_op_hdr(xdr
, OP_RECLAIM_COMPLETE
);
5895 #endif /* CONFIG_NFS_V4_1 */
5897 static int decode_sequence(struct xdr_stream
*xdr
,
5898 struct nfs4_sequence_res
*res
,
5899 struct rpc_rqst
*rqstp
)
5901 #if defined(CONFIG_NFS_V4_1)
5902 struct nfs4_session
*session
;
5903 struct nfs4_sessionid id
;
5908 if (res
->sr_slot
== NULL
)
5910 if (!res
->sr_slot
->table
->session
)
5913 status
= decode_op_hdr(xdr
, OP_SEQUENCE
);
5915 status
= decode_sessionid(xdr
, &id
);
5916 if (unlikely(status
))
5920 * If the server returns different values for sessionID, slotID or
5921 * sequence number, the server is looney tunes.
5923 status
= -EREMOTEIO
;
5924 session
= res
->sr_slot
->table
->session
;
5926 if (memcmp(id
.data
, session
->sess_id
.data
,
5927 NFS4_MAX_SESSIONID_LEN
)) {
5928 dprintk("%s Invalid session id\n", __func__
);
5932 p
= xdr_inline_decode(xdr
, 20);
5937 dummy
= be32_to_cpup(p
++);
5938 if (dummy
!= res
->sr_slot
->seq_nr
) {
5939 dprintk("%s Invalid sequence number\n", __func__
);
5943 dummy
= be32_to_cpup(p
++);
5944 if (dummy
!= res
->sr_slot
->slot_nr
) {
5945 dprintk("%s Invalid slot id\n", __func__
);
5948 /* highest slot id */
5949 res
->sr_highest_slotid
= be32_to_cpup(p
++);
5950 /* target highest slot id */
5951 res
->sr_target_highest_slotid
= be32_to_cpup(p
++);
5953 res
->sr_status_flags
= be32_to_cpup(p
);
5956 res
->sr_status
= status
;
5961 #else /* CONFIG_NFS_V4_1 */
5963 #endif /* CONFIG_NFS_V4_1 */
5966 #if defined(CONFIG_NFS_V4_1)
5967 static int decode_layout_stateid(struct xdr_stream
*xdr
, nfs4_stateid
*stateid
)
5969 stateid
->type
= NFS4_LAYOUT_STATEID_TYPE
;
5970 return decode_stateid(xdr
, stateid
);
5973 static int decode_getdeviceinfo(struct xdr_stream
*xdr
,
5974 struct nfs4_getdeviceinfo_res
*res
)
5976 struct pnfs_device
*pdev
= res
->pdev
;
5981 status
= decode_op_hdr(xdr
, OP_GETDEVICEINFO
);
5983 if (status
== -ETOOSMALL
) {
5984 p
= xdr_inline_decode(xdr
, 4);
5987 pdev
->mincount
= be32_to_cpup(p
);
5988 dprintk("%s: Min count too small. mincnt = %u\n",
5989 __func__
, pdev
->mincount
);
5994 p
= xdr_inline_decode(xdr
, 8);
5997 type
= be32_to_cpup(p
++);
5998 if (type
!= pdev
->layout_type
) {
5999 dprintk("%s: layout mismatch req: %u pdev: %u\n",
6000 __func__
, pdev
->layout_type
, type
);
6004 * Get the length of the opaque device_addr4. xdr_read_pages places
6005 * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages)
6006 * and places the remaining xdr data in xdr_buf->tail
6008 pdev
->mincount
= be32_to_cpup(p
);
6009 if (xdr_read_pages(xdr
, pdev
->mincount
) != pdev
->mincount
)
6012 /* Parse notification bitmap, verifying that it is zero. */
6013 p
= xdr_inline_decode(xdr
, 4);
6016 len
= be32_to_cpup(p
);
6020 p
= xdr_inline_decode(xdr
, 4 * len
);
6024 res
->notification
= be32_to_cpup(p
++);
6025 for (i
= 1; i
< len
; i
++) {
6026 if (be32_to_cpup(p
++)) {
6027 dprintk("%s: unsupported notification\n",
6036 static int decode_layoutget(struct xdr_stream
*xdr
, struct rpc_rqst
*req
,
6037 struct nfs4_layoutget_res
*res
)
6044 status
= decode_op_hdr(xdr
, OP_LAYOUTGET
);
6047 p
= xdr_inline_decode(xdr
, 4);
6050 res
->return_on_close
= be32_to_cpup(p
);
6051 decode_layout_stateid(xdr
, &res
->stateid
);
6052 p
= xdr_inline_decode(xdr
, 4);
6055 layout_count
= be32_to_cpup(p
);
6056 if (!layout_count
) {
6057 dprintk("%s: server responded with empty layout array\n",
6063 p
= xdr_inline_decode(xdr
, 28);
6066 p
= xdr_decode_hyper(p
, &res
->range
.offset
);
6067 p
= xdr_decode_hyper(p
, &res
->range
.length
);
6068 res
->range
.iomode
= be32_to_cpup(p
++);
6069 res
->type
= be32_to_cpup(p
++);
6070 res
->layoutp
->len
= be32_to_cpup(p
);
6072 dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n",
6074 (unsigned long)res
->range
.offset
,
6075 (unsigned long)res
->range
.length
,
6080 recvd
= xdr_read_pages(xdr
, res
->layoutp
->len
);
6081 if (res
->layoutp
->len
> recvd
) {
6082 dprintk("NFS: server cheating in layoutget reply: "
6083 "layout len %u > recvd %u\n",
6084 res
->layoutp
->len
, recvd
);
6089 if (layout_count
> 1) {
6090 /* We only handle a length one array at the moment. Any
6091 * further entries are just ignored. Note that this means
6092 * the client may see a response that is less than the
6093 * minimum it requested.
6095 dprintk("%s: server responded with %d layouts, dropping tail\n",
6096 __func__
, layout_count
);
6100 res
->status
= status
;
6107 static int decode_layoutreturn(struct xdr_stream
*xdr
,
6108 struct nfs4_layoutreturn_res
*res
)
6113 status
= decode_op_hdr(xdr
, OP_LAYOUTRETURN
);
6116 p
= xdr_inline_decode(xdr
, 4);
6119 res
->lrs_present
= be32_to_cpup(p
);
6120 if (res
->lrs_present
)
6121 status
= decode_layout_stateid(xdr
, &res
->stateid
);
6123 nfs4_stateid_copy(&res
->stateid
, &invalid_stateid
);
6127 static int decode_layoutcommit(struct xdr_stream
*xdr
,
6128 struct rpc_rqst
*req
,
6129 struct nfs4_layoutcommit_res
*res
)
6135 status
= decode_op_hdr(xdr
, OP_LAYOUTCOMMIT
);
6136 res
->status
= status
;
6140 p
= xdr_inline_decode(xdr
, 4);
6143 sizechanged
= be32_to_cpup(p
);
6146 /* throw away new size */
6147 p
= xdr_inline_decode(xdr
, 8);
6154 static int decode_test_stateid(struct xdr_stream
*xdr
,
6155 struct nfs41_test_stateid_res
*res
)
6161 status
= decode_op_hdr(xdr
, OP_TEST_STATEID
);
6165 p
= xdr_inline_decode(xdr
, 4);
6168 num_res
= be32_to_cpup(p
++);
6172 p
= xdr_inline_decode(xdr
, 4);
6175 res
->status
= be32_to_cpup(p
++);
6180 static int decode_free_stateid(struct xdr_stream
*xdr
,
6181 struct nfs41_free_stateid_res
*res
)
6183 res
->status
= decode_op_hdr(xdr
, OP_FREE_STATEID
);
6188 int decode_layoutreturn(struct xdr_stream
*xdr
,
6189 struct nfs4_layoutreturn_res
*res
)
6194 static int decode_layoutget(struct xdr_stream
*xdr
, struct rpc_rqst
*req
,
6195 struct nfs4_layoutget_res
*res
)
6200 #endif /* CONFIG_NFS_V4_1 */
6203 * END OF "GENERIC" DECODE ROUTINES.
6207 * Decode OPEN_DOWNGRADE response
6209 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst
*rqstp
,
6210 struct xdr_stream
*xdr
,
6213 struct nfs_closeres
*res
= data
;
6214 struct compound_hdr hdr
;
6217 status
= decode_compound_hdr(xdr
, &hdr
);
6220 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6223 status
= decode_putfh(xdr
);
6227 status
= decode_layoutreturn(xdr
, res
->lr_res
);
6228 res
->lr_ret
= status
;
6232 status
= decode_open_downgrade(xdr
, res
);
6238 * Decode ACCESS response
6240 static int nfs4_xdr_dec_access(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6243 struct nfs4_accessres
*res
= data
;
6244 struct compound_hdr hdr
;
6247 status
= decode_compound_hdr(xdr
, &hdr
);
6250 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6253 status
= decode_putfh(xdr
);
6256 status
= decode_access(xdr
, &res
->supported
, &res
->access
);
6260 decode_getfattr(xdr
, res
->fattr
, res
->server
);
6266 * Decode LOOKUP response
6268 static int nfs4_xdr_dec_lookup(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6271 struct nfs4_lookup_res
*res
= data
;
6272 struct compound_hdr hdr
;
6275 status
= decode_compound_hdr(xdr
, &hdr
);
6278 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6281 status
= decode_putfh(xdr
);
6284 status
= decode_lookup(xdr
);
6287 status
= decode_getfh(xdr
, res
->fh
);
6290 status
= decode_getfattr(xdr
, res
->fattr
, res
->server
);
6296 * Decode LOOKUPP response
6298 static int nfs4_xdr_dec_lookupp(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6301 struct nfs4_lookupp_res
*res
= data
;
6302 struct compound_hdr hdr
;
6305 status
= decode_compound_hdr(xdr
, &hdr
);
6308 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6311 status
= decode_putfh(xdr
);
6314 status
= decode_lookupp(xdr
);
6317 status
= decode_getfh(xdr
, res
->fh
);
6320 status
= decode_getfattr(xdr
, res
->fattr
, res
->server
);
6326 * Decode LOOKUP_ROOT response
6328 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst
*rqstp
,
6329 struct xdr_stream
*xdr
,
6332 struct nfs4_lookup_res
*res
= data
;
6333 struct compound_hdr hdr
;
6336 status
= decode_compound_hdr(xdr
, &hdr
);
6339 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6342 status
= decode_putrootfh(xdr
);
6345 status
= decode_getfh(xdr
, res
->fh
);
6347 status
= decode_getfattr(xdr
, res
->fattr
, res
->server
);
6353 * Decode REMOVE response
6355 static int nfs4_xdr_dec_remove(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6358 struct nfs_removeres
*res
= data
;
6359 struct compound_hdr hdr
;
6362 status
= decode_compound_hdr(xdr
, &hdr
);
6365 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6368 status
= decode_putfh(xdr
);
6371 status
= decode_remove(xdr
, &res
->cinfo
);
6377 * Decode RENAME response
6379 static int nfs4_xdr_dec_rename(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6382 struct nfs_renameres
*res
= data
;
6383 struct compound_hdr hdr
;
6386 status
= decode_compound_hdr(xdr
, &hdr
);
6389 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6392 status
= decode_putfh(xdr
);
6395 status
= decode_savefh(xdr
);
6398 status
= decode_putfh(xdr
);
6401 status
= decode_rename(xdr
, &res
->old_cinfo
, &res
->new_cinfo
);
6407 * Decode LINK response
6409 static int nfs4_xdr_dec_link(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6412 struct nfs4_link_res
*res
= data
;
6413 struct compound_hdr hdr
;
6416 status
= decode_compound_hdr(xdr
, &hdr
);
6419 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6422 status
= decode_putfh(xdr
);
6425 status
= decode_savefh(xdr
);
6428 status
= decode_putfh(xdr
);
6431 status
= decode_link(xdr
, &res
->cinfo
);
6435 * Note order: OP_LINK leaves the directory as the current
6438 status
= decode_restorefh(xdr
);
6441 decode_getfattr(xdr
, res
->fattr
, res
->server
);
6447 * Decode CREATE response
6449 static int nfs4_xdr_dec_create(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6452 struct nfs4_create_res
*res
= data
;
6453 struct compound_hdr hdr
;
6456 status
= decode_compound_hdr(xdr
, &hdr
);
6459 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6462 status
= decode_putfh(xdr
);
6465 status
= decode_create(xdr
, &res
->dir_cinfo
);
6468 status
= decode_getfh(xdr
, res
->fh
);
6471 decode_getfattr(xdr
, res
->fattr
, res
->server
);
6477 * Decode SYMLINK response
6479 static int nfs4_xdr_dec_symlink(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6482 return nfs4_xdr_dec_create(rqstp
, xdr
, res
);
6486 * Decode GETATTR response
6488 static int nfs4_xdr_dec_getattr(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6491 struct nfs4_getattr_res
*res
= data
;
6492 struct compound_hdr hdr
;
6495 status
= decode_compound_hdr(xdr
, &hdr
);
6498 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6501 status
= decode_putfh(xdr
);
6504 status
= decode_getfattr(xdr
, res
->fattr
, res
->server
);
6510 * Encode an SETACL request
6512 static void nfs4_xdr_enc_setacl(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
6515 const struct nfs_setaclargs
*args
= data
;
6516 struct compound_hdr hdr
= {
6517 .minorversion
= nfs4_xdr_minorversion(&args
->seq_args
),
6520 encode_compound_hdr(xdr
, req
, &hdr
);
6521 encode_sequence(xdr
, &args
->seq_args
, &hdr
);
6522 encode_putfh(xdr
, args
->fh
, &hdr
);
6523 encode_setacl(xdr
, args
, &hdr
);
6528 * Decode SETACL response
6531 nfs4_xdr_dec_setacl(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6534 struct nfs_setaclres
*res
= data
;
6535 struct compound_hdr hdr
;
6538 status
= decode_compound_hdr(xdr
, &hdr
);
6541 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6544 status
= decode_putfh(xdr
);
6547 status
= decode_setattr(xdr
);
6553 * Decode GETACL response
6556 nfs4_xdr_dec_getacl(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6559 struct nfs_getaclres
*res
= data
;
6560 struct compound_hdr hdr
;
6563 if (res
->acl_scratch
!= NULL
)
6564 xdr_set_scratch_page(xdr
, res
->acl_scratch
);
6565 status
= decode_compound_hdr(xdr
, &hdr
);
6568 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6571 status
= decode_putfh(xdr
);
6574 status
= decode_getacl(xdr
, rqstp
, res
, res
->acl_type
);
6581 * Decode CLOSE response
6583 static int nfs4_xdr_dec_close(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6586 struct nfs_closeres
*res
= data
;
6587 struct compound_hdr hdr
;
6590 status
= decode_compound_hdr(xdr
, &hdr
);
6593 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6596 status
= decode_putfh(xdr
);
6600 status
= decode_layoutreturn(xdr
, res
->lr_res
);
6601 res
->lr_ret
= status
;
6605 if (res
->fattr
!= NULL
) {
6606 status
= decode_getfattr(xdr
, res
->fattr
, res
->server
);
6610 status
= decode_close(xdr
, res
);
6616 * Decode OPEN response
6618 static int nfs4_xdr_dec_open(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6621 struct nfs_openres
*res
= data
;
6622 struct compound_hdr hdr
;
6625 status
= decode_compound_hdr(xdr
, &hdr
);
6628 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6631 status
= decode_putfh(xdr
);
6634 status
= decode_open(xdr
, res
);
6637 status
= decode_getfh(xdr
, &res
->fh
);
6640 if (res
->access_request
)
6641 decode_access(xdr
, &res
->access_supported
, &res
->access_result
);
6642 decode_getfattr(xdr
, res
->f_attr
, res
->server
);
6644 decode_layoutget(xdr
, rqstp
, res
->lg_res
);
6650 * Decode OPEN_CONFIRM response
6652 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst
*rqstp
,
6653 struct xdr_stream
*xdr
,
6656 struct nfs_open_confirmres
*res
= data
;
6657 struct compound_hdr hdr
;
6660 status
= decode_compound_hdr(xdr
, &hdr
);
6663 status
= decode_putfh(xdr
);
6666 status
= decode_open_confirm(xdr
, res
);
6672 * Decode OPEN response
6674 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst
*rqstp
,
6675 struct xdr_stream
*xdr
,
6678 struct nfs_openres
*res
= data
;
6679 struct compound_hdr hdr
;
6682 status
= decode_compound_hdr(xdr
, &hdr
);
6685 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6688 status
= decode_putfh(xdr
);
6691 status
= decode_open(xdr
, res
);
6694 if (res
->access_request
)
6695 decode_access(xdr
, &res
->access_supported
, &res
->access_result
);
6696 decode_getfattr(xdr
, res
->f_attr
, res
->server
);
6698 decode_layoutget(xdr
, rqstp
, res
->lg_res
);
6704 * Decode SETATTR response
6706 static int nfs4_xdr_dec_setattr(struct rpc_rqst
*rqstp
,
6707 struct xdr_stream
*xdr
,
6710 struct nfs_setattrres
*res
= data
;
6711 struct compound_hdr hdr
;
6714 status
= decode_compound_hdr(xdr
, &hdr
);
6717 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6720 status
= decode_putfh(xdr
);
6723 status
= decode_setattr(xdr
);
6726 decode_getfattr(xdr
, res
->fattr
, res
->server
);
6732 * Decode LOCK response
6734 static int nfs4_xdr_dec_lock(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6737 struct nfs_lock_res
*res
= data
;
6738 struct compound_hdr hdr
;
6741 status
= decode_compound_hdr(xdr
, &hdr
);
6744 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6747 status
= decode_putfh(xdr
);
6750 status
= decode_lock(xdr
, res
);
6756 * Decode LOCKT response
6758 static int nfs4_xdr_dec_lockt(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6761 struct nfs_lockt_res
*res
= data
;
6762 struct compound_hdr hdr
;
6765 status
= decode_compound_hdr(xdr
, &hdr
);
6768 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6771 status
= decode_putfh(xdr
);
6774 status
= decode_lockt(xdr
, res
);
6780 * Decode LOCKU response
6782 static int nfs4_xdr_dec_locku(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6785 struct nfs_locku_res
*res
= data
;
6786 struct compound_hdr hdr
;
6789 status
= decode_compound_hdr(xdr
, &hdr
);
6792 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6795 status
= decode_putfh(xdr
);
6798 status
= decode_locku(xdr
, res
);
6803 static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst
*rqstp
,
6804 struct xdr_stream
*xdr
, void *dummy
)
6806 struct compound_hdr hdr
;
6809 status
= decode_compound_hdr(xdr
, &hdr
);
6811 status
= decode_release_lockowner(xdr
);
6816 * Decode READLINK response
6818 static int nfs4_xdr_dec_readlink(struct rpc_rqst
*rqstp
,
6819 struct xdr_stream
*xdr
,
6822 struct nfs4_readlink_res
*res
= data
;
6823 struct compound_hdr hdr
;
6826 status
= decode_compound_hdr(xdr
, &hdr
);
6829 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6832 status
= decode_putfh(xdr
);
6835 status
= decode_readlink(xdr
, rqstp
);
6841 * Decode READDIR response
6843 static int nfs4_xdr_dec_readdir(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6846 struct nfs4_readdir_res
*res
= data
;
6847 struct compound_hdr hdr
;
6850 status
= decode_compound_hdr(xdr
, &hdr
);
6853 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6856 status
= decode_putfh(xdr
);
6859 status
= decode_readdir(xdr
, rqstp
, res
);
6865 * Decode Read response
6867 static int nfs4_xdr_dec_read(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6870 struct nfs_pgio_res
*res
= data
;
6871 struct compound_hdr hdr
;
6874 status
= decode_compound_hdr(xdr
, &hdr
);
6875 res
->op_status
= hdr
.status
;
6878 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6881 status
= decode_putfh(xdr
);
6884 status
= decode_read(xdr
, rqstp
, res
);
6886 status
= res
->count
;
6892 * Decode WRITE response
6894 static int nfs4_xdr_dec_write(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6897 struct nfs_pgio_res
*res
= data
;
6898 struct compound_hdr hdr
;
6901 status
= decode_compound_hdr(xdr
, &hdr
);
6902 res
->op_status
= hdr
.status
;
6905 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6908 status
= decode_putfh(xdr
);
6911 status
= decode_write(xdr
, res
);
6915 decode_getfattr(xdr
, res
->fattr
, res
->server
);
6917 status
= res
->count
;
6923 * Decode COMMIT response
6925 static int nfs4_xdr_dec_commit(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
6928 struct nfs_commitres
*res
= data
;
6929 struct compound_hdr hdr
;
6932 status
= decode_compound_hdr(xdr
, &hdr
);
6933 res
->op_status
= hdr
.status
;
6936 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
6939 status
= decode_putfh(xdr
);
6942 status
= decode_commit(xdr
, res
);
6948 * Decode FSINFO response
6950 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
6953 struct nfs4_fsinfo_res
*res
= data
;
6954 struct compound_hdr hdr
;
6957 status
= decode_compound_hdr(xdr
, &hdr
);
6959 status
= decode_sequence(xdr
, &res
->seq_res
, req
);
6961 status
= decode_putfh(xdr
);
6963 status
= decode_fsinfo(xdr
, res
->fsinfo
);
6968 * Decode PATHCONF response
6970 static int nfs4_xdr_dec_pathconf(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
6973 struct nfs4_pathconf_res
*res
= data
;
6974 struct compound_hdr hdr
;
6977 status
= decode_compound_hdr(xdr
, &hdr
);
6979 status
= decode_sequence(xdr
, &res
->seq_res
, req
);
6981 status
= decode_putfh(xdr
);
6983 status
= decode_pathconf(xdr
, res
->pathconf
);
6988 * Decode STATFS response
6990 static int nfs4_xdr_dec_statfs(struct rpc_rqst
*req
, struct xdr_stream
*xdr
,
6993 struct nfs4_statfs_res
*res
= data
;
6994 struct compound_hdr hdr
;
6997 status
= decode_compound_hdr(xdr
, &hdr
);
6999 status
= decode_sequence(xdr
, &res
->seq_res
, req
);
7001 status
= decode_putfh(xdr
);
7003 status
= decode_statfs(xdr
, res
->fsstat
);
7008 * Decode GETATTR_BITMAP response
7010 static int nfs4_xdr_dec_server_caps(struct rpc_rqst
*req
,
7011 struct xdr_stream
*xdr
,
7014 struct nfs4_server_caps_res
*res
= data
;
7015 struct compound_hdr hdr
;
7018 status
= decode_compound_hdr(xdr
, &hdr
);
7021 status
= decode_sequence(xdr
, &res
->seq_res
, req
);
7024 status
= decode_putfh(xdr
);
7027 status
= decode_server_caps(xdr
, res
);
7033 * Decode RENEW response
7035 static int nfs4_xdr_dec_renew(struct rpc_rqst
*rqstp
, struct xdr_stream
*xdr
,
7038 struct compound_hdr hdr
;
7041 status
= decode_compound_hdr(xdr
, &hdr
);
7043 status
= decode_renew(xdr
);
7048 * Decode SETCLIENTID response
7050 static int nfs4_xdr_dec_setclientid(struct rpc_rqst
*req
,
7051 struct xdr_stream
*xdr
,
7054 struct nfs4_setclientid_res
*res
= data
;
7055 struct compound_hdr hdr
;
7058 status
= decode_compound_hdr(xdr
, &hdr
);
7060 status
= decode_setclientid(xdr
, res
);
7065 * Decode SETCLIENTID_CONFIRM response
7067 static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst
*req
,
7068 struct xdr_stream
*xdr
,
7071 struct compound_hdr hdr
;
7074 status
= decode_compound_hdr(xdr
, &hdr
);
7076 status
= decode_setclientid_confirm(xdr
);
7081 * Decode DELEGRETURN response
7083 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst
*rqstp
,
7084 struct xdr_stream
*xdr
,
7087 struct nfs4_delegreturnres
*res
= data
;
7088 struct compound_hdr hdr
;
7091 status
= decode_compound_hdr(xdr
, &hdr
);
7094 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7097 status
= decode_putfh(xdr
);
7101 status
= decode_layoutreturn(xdr
, res
->lr_res
);
7102 res
->lr_ret
= status
;
7106 if (res
->sattr_res
) {
7107 status
= decode_delegattr(xdr
);
7108 res
->sattr_ret
= status
;
7113 status
= decode_getfattr(xdr
, res
->fattr
, res
->server
);
7117 status
= decode_delegreturn(xdr
);
7123 * Decode FS_LOCATIONS response
7125 static int nfs4_xdr_dec_fs_locations(struct rpc_rqst
*req
,
7126 struct xdr_stream
*xdr
,
7129 struct nfs4_fs_locations_res
*res
= data
;
7130 struct compound_hdr hdr
;
7133 status
= decode_compound_hdr(xdr
, &hdr
);
7136 status
= decode_sequence(xdr
, &res
->seq_res
, req
);
7139 status
= decode_putfh(xdr
);
7142 if (res
->migration
) {
7143 xdr_enter_page(xdr
, PAGE_SIZE
);
7144 status
= decode_getfattr_generic(xdr
,
7145 res
->fs_locations
->fattr
,
7146 NULL
, res
->fs_locations
,
7147 res
->fs_locations
->server
);
7151 status
= decode_renew(xdr
);
7153 status
= decode_lookup(xdr
);
7156 xdr_enter_page(xdr
, PAGE_SIZE
);
7157 status
= decode_getfattr_generic(xdr
,
7158 res
->fs_locations
->fattr
,
7159 NULL
, res
->fs_locations
,
7160 res
->fs_locations
->server
);
7167 * Decode SECINFO response
7169 static int nfs4_xdr_dec_secinfo(struct rpc_rqst
*rqstp
,
7170 struct xdr_stream
*xdr
,
7173 struct nfs4_secinfo_res
*res
= data
;
7174 struct compound_hdr hdr
;
7177 status
= decode_compound_hdr(xdr
, &hdr
);
7180 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7183 status
= decode_putfh(xdr
);
7186 status
= decode_secinfo(xdr
, res
);
7192 * Decode FSID_PRESENT response
7194 static int nfs4_xdr_dec_fsid_present(struct rpc_rqst
*rqstp
,
7195 struct xdr_stream
*xdr
,
7198 struct nfs4_fsid_present_res
*res
= data
;
7199 struct compound_hdr hdr
;
7202 status
= decode_compound_hdr(xdr
, &hdr
);
7205 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7208 status
= decode_putfh(xdr
);
7211 status
= decode_getfh(xdr
, res
->fh
);
7215 status
= decode_renew(xdr
);
7220 #if defined(CONFIG_NFS_V4_1)
7222 * Decode BIND_CONN_TO_SESSION response
7224 static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst
*rqstp
,
7225 struct xdr_stream
*xdr
,
7228 struct compound_hdr hdr
;
7231 status
= decode_compound_hdr(xdr
, &hdr
);
7233 status
= decode_bind_conn_to_session(xdr
, res
);
7238 * Decode EXCHANGE_ID response
7240 static int nfs4_xdr_dec_exchange_id(struct rpc_rqst
*rqstp
,
7241 struct xdr_stream
*xdr
,
7244 struct compound_hdr hdr
;
7247 status
= decode_compound_hdr(xdr
, &hdr
);
7249 status
= decode_exchange_id(xdr
, res
);
7254 * Decode CREATE_SESSION response
7256 static int nfs4_xdr_dec_create_session(struct rpc_rqst
*rqstp
,
7257 struct xdr_stream
*xdr
,
7260 struct compound_hdr hdr
;
7263 status
= decode_compound_hdr(xdr
, &hdr
);
7265 status
= decode_create_session(xdr
, res
);
7270 * Decode DESTROY_SESSION response
7272 static int nfs4_xdr_dec_destroy_session(struct rpc_rqst
*rqstp
,
7273 struct xdr_stream
*xdr
,
7276 struct compound_hdr hdr
;
7279 status
= decode_compound_hdr(xdr
, &hdr
);
7281 status
= decode_destroy_session(xdr
, res
);
7286 * Decode DESTROY_CLIENTID response
7288 static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst
*rqstp
,
7289 struct xdr_stream
*xdr
,
7292 struct compound_hdr hdr
;
7295 status
= decode_compound_hdr(xdr
, &hdr
);
7297 status
= decode_destroy_clientid(xdr
, res
);
7302 * Decode SEQUENCE response
7304 static int nfs4_xdr_dec_sequence(struct rpc_rqst
*rqstp
,
7305 struct xdr_stream
*xdr
,
7308 struct compound_hdr hdr
;
7311 status
= decode_compound_hdr(xdr
, &hdr
);
7313 status
= decode_sequence(xdr
, res
, rqstp
);
7320 * Decode GET_LEASE_TIME response
7322 static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst
*rqstp
,
7323 struct xdr_stream
*xdr
,
7326 struct nfs4_get_lease_time_res
*res
= data
;
7327 struct compound_hdr hdr
;
7330 status
= decode_compound_hdr(xdr
, &hdr
);
7332 status
= decode_sequence(xdr
, &res
->lr_seq_res
, rqstp
);
7334 status
= decode_putrootfh(xdr
);
7336 status
= decode_fsinfo(xdr
, res
->lr_fsinfo
);
7340 #ifdef CONFIG_NFS_V4_1
7343 * Decode RECLAIM_COMPLETE response
7345 static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst
*rqstp
,
7346 struct xdr_stream
*xdr
,
7349 struct nfs41_reclaim_complete_res
*res
= data
;
7350 struct compound_hdr hdr
;
7353 status
= decode_compound_hdr(xdr
, &hdr
);
7355 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7357 status
= decode_reclaim_complete(xdr
, NULL
);
7362 * Decode GETDEVINFO response
7364 static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst
*rqstp
,
7365 struct xdr_stream
*xdr
,
7368 struct nfs4_getdeviceinfo_res
*res
= data
;
7369 struct compound_hdr hdr
;
7372 status
= decode_compound_hdr(xdr
, &hdr
);
7375 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7378 status
= decode_getdeviceinfo(xdr
, res
);
7384 * Decode LAYOUTGET response
7386 static int nfs4_xdr_dec_layoutget(struct rpc_rqst
*rqstp
,
7387 struct xdr_stream
*xdr
,
7390 struct nfs4_layoutget_res
*res
= data
;
7391 struct compound_hdr hdr
;
7394 status
= decode_compound_hdr(xdr
, &hdr
);
7397 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7400 status
= decode_putfh(xdr
);
7403 status
= decode_layoutget(xdr
, rqstp
, res
);
7409 * Decode LAYOUTRETURN response
7411 static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst
*rqstp
,
7412 struct xdr_stream
*xdr
,
7415 struct nfs4_layoutreturn_res
*res
= data
;
7416 struct compound_hdr hdr
;
7419 status
= decode_compound_hdr(xdr
, &hdr
);
7422 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7425 status
= decode_putfh(xdr
);
7428 status
= decode_layoutreturn(xdr
, res
);
7434 * Decode LAYOUTCOMMIT response
7436 static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst
*rqstp
,
7437 struct xdr_stream
*xdr
,
7440 struct nfs4_layoutcommit_res
*res
= data
;
7441 struct compound_hdr hdr
;
7444 status
= decode_compound_hdr(xdr
, &hdr
);
7447 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7450 status
= decode_putfh(xdr
);
7453 status
= decode_layoutcommit(xdr
, rqstp
, res
);
7456 decode_getfattr(xdr
, res
->fattr
, res
->server
);
7462 * Decode SECINFO_NO_NAME response
7464 static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst
*rqstp
,
7465 struct xdr_stream
*xdr
,
7468 struct nfs4_secinfo_res
*res
= data
;
7469 struct compound_hdr hdr
;
7472 status
= decode_compound_hdr(xdr
, &hdr
);
7475 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7478 status
= decode_putrootfh(xdr
);
7481 status
= decode_secinfo_no_name(xdr
, res
);
7487 * Decode TEST_STATEID response
7489 static int nfs4_xdr_dec_test_stateid(struct rpc_rqst
*rqstp
,
7490 struct xdr_stream
*xdr
,
7493 struct nfs41_test_stateid_res
*res
= data
;
7494 struct compound_hdr hdr
;
7497 status
= decode_compound_hdr(xdr
, &hdr
);
7500 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7503 status
= decode_test_stateid(xdr
, res
);
7509 * Decode FREE_STATEID response
7511 static int nfs4_xdr_dec_free_stateid(struct rpc_rqst
*rqstp
,
7512 struct xdr_stream
*xdr
,
7515 struct nfs41_free_stateid_res
*res
= data
;
7516 struct compound_hdr hdr
;
7519 status
= decode_compound_hdr(xdr
, &hdr
);
7522 status
= decode_sequence(xdr
, &res
->seq_res
, rqstp
);
7525 status
= decode_free_stateid(xdr
, res
);
7529 #endif /* CONFIG_NFS_V4_1 */
7532 * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in
7533 * the local page cache.
7534 * @xdr: XDR stream where entry resides
7535 * @entry: buffer to fill in with entry data
7536 * @plus: boolean indicating whether this should be a readdirplus entry
7538 * Returns zero if successful, otherwise a negative errno value is
7541 * This function is not invoked during READDIR reply decoding, but
7542 * rather whenever an application invokes the getdents(2) system call
7543 * on a directory already in our cache.
7545 int nfs4_decode_dirent(struct xdr_stream
*xdr
, struct nfs_entry
*entry
,
7549 uint32_t bitmap
[3] = {0};
7551 uint64_t new_cookie
;
7552 __be32
*p
= xdr_inline_decode(xdr
, 4);
7555 if (*p
== xdr_zero
) {
7556 p
= xdr_inline_decode(xdr
, 4);
7565 p
= xdr_inline_decode(xdr
, 12);
7568 p
= xdr_decode_hyper(p
, &new_cookie
);
7569 entry
->len
= be32_to_cpup(p
);
7571 p
= xdr_inline_decode(xdr
, entry
->len
);
7574 entry
->name
= (const char *) p
;
7577 * In case the server doesn't return an inode number,
7578 * we fake one here. (We don't use inode number 0,
7579 * since glibc seems to choke on it...)
7582 entry
->fattr
->valid
= 0;
7584 if (decode_attr_bitmap(xdr
, bitmap
) < 0)
7587 if (decode_attr_length(xdr
, &len
, &savep
) < 0)
7590 if (decode_getfattr_attrs(xdr
, bitmap
, entry
->fattr
, entry
->fh
,
7591 NULL
, entry
->server
) < 0)
7593 if (entry
->fattr
->valid
& NFS_ATTR_FATTR_MOUNTED_ON_FILEID
)
7594 entry
->ino
= entry
->fattr
->mounted_on_fileid
;
7595 else if (entry
->fattr
->valid
& NFS_ATTR_FATTR_FILEID
)
7596 entry
->ino
= entry
->fattr
->fileid
;
7598 entry
->d_type
= DT_UNKNOWN
;
7599 if (entry
->fattr
->valid
& NFS_ATTR_FATTR_TYPE
)
7600 entry
->d_type
= nfs_umode_to_dtype(entry
->fattr
->mode
);
7602 entry
->cookie
= new_cookie
;
7607 #ifdef CONFIG_NFS_V4_2
7608 #include "nfs42xdr.c"
7609 #endif /* CONFIG_NFS_V4_2 */
7611 #define PROC(proc, argtype, restype) \
7612 [NFSPROC4_CLNT_##proc] = { \
7613 .p_proc = NFSPROC4_COMPOUND, \
7614 .p_encode = nfs4_xdr_##argtype, \
7615 .p_decode = nfs4_xdr_##restype, \
7616 .p_arglen = NFS4_##argtype##_sz, \
7617 .p_replen = NFS4_##restype##_sz, \
7618 .p_statidx = NFSPROC4_CLNT_##proc, \
7622 #define STUB(proc) \
7623 [NFSPROC4_CLNT_##proc] = { \
7627 #if defined(CONFIG_NFS_V4_1)
7628 #define PROC41(proc, argtype, restype) \
7629 PROC(proc, argtype, restype)
7631 #define PROC41(proc, argtype, restype) \
7635 #if defined(CONFIG_NFS_V4_2)
7636 #define PROC42(proc, argtype, restype) \
7637 PROC(proc, argtype, restype)
7639 #define PROC42(proc, argtype, restype) \
7643 const struct rpc_procinfo nfs4_procedures
[] = {
7644 PROC(READ
, enc_read
, dec_read
),
7645 PROC(WRITE
, enc_write
, dec_write
),
7646 PROC(COMMIT
, enc_commit
, dec_commit
),
7647 PROC(OPEN
, enc_open
, dec_open
),
7648 PROC(OPEN_CONFIRM
, enc_open_confirm
, dec_open_confirm
),
7649 PROC(OPEN_NOATTR
, enc_open_noattr
, dec_open_noattr
),
7650 PROC(OPEN_DOWNGRADE
, enc_open_downgrade
, dec_open_downgrade
),
7651 PROC(CLOSE
, enc_close
, dec_close
),
7652 PROC(SETATTR
, enc_setattr
, dec_setattr
),
7653 PROC(FSINFO
, enc_fsinfo
, dec_fsinfo
),
7654 PROC(RENEW
, enc_renew
, dec_renew
),
7655 PROC(SETCLIENTID
, enc_setclientid
, dec_setclientid
),
7656 PROC(SETCLIENTID_CONFIRM
, enc_setclientid_confirm
, dec_setclientid_confirm
),
7657 PROC(LOCK
, enc_lock
, dec_lock
),
7658 PROC(LOCKT
, enc_lockt
, dec_lockt
),
7659 PROC(LOCKU
, enc_locku
, dec_locku
),
7660 PROC(ACCESS
, enc_access
, dec_access
),
7661 PROC(GETATTR
, enc_getattr
, dec_getattr
),
7662 PROC(LOOKUP
, enc_lookup
, dec_lookup
),
7663 PROC(LOOKUP_ROOT
, enc_lookup_root
, dec_lookup_root
),
7664 PROC(REMOVE
, enc_remove
, dec_remove
),
7665 PROC(RENAME
, enc_rename
, dec_rename
),
7666 PROC(LINK
, enc_link
, dec_link
),
7667 PROC(SYMLINK
, enc_symlink
, dec_symlink
),
7668 PROC(CREATE
, enc_create
, dec_create
),
7669 PROC(PATHCONF
, enc_pathconf
, dec_pathconf
),
7670 PROC(STATFS
, enc_statfs
, dec_statfs
),
7671 PROC(READLINK
, enc_readlink
, dec_readlink
),
7672 PROC(READDIR
, enc_readdir
, dec_readdir
),
7673 PROC(SERVER_CAPS
, enc_server_caps
, dec_server_caps
),
7674 PROC(DELEGRETURN
, enc_delegreturn
, dec_delegreturn
),
7675 PROC(GETACL
, enc_getacl
, dec_getacl
),
7676 PROC(SETACL
, enc_setacl
, dec_setacl
),
7677 PROC(FS_LOCATIONS
, enc_fs_locations
, dec_fs_locations
),
7678 PROC(RELEASE_LOCKOWNER
, enc_release_lockowner
, dec_release_lockowner
),
7679 PROC(SECINFO
, enc_secinfo
, dec_secinfo
),
7680 PROC(FSID_PRESENT
, enc_fsid_present
, dec_fsid_present
),
7681 PROC41(EXCHANGE_ID
, enc_exchange_id
, dec_exchange_id
),
7682 PROC41(CREATE_SESSION
, enc_create_session
, dec_create_session
),
7683 PROC41(DESTROY_SESSION
, enc_destroy_session
, dec_destroy_session
),
7684 PROC41(SEQUENCE
, enc_sequence
, dec_sequence
),
7685 PROC(GET_LEASE_TIME
, enc_get_lease_time
, dec_get_lease_time
),
7686 PROC41(RECLAIM_COMPLETE
,enc_reclaim_complete
, dec_reclaim_complete
),
7687 PROC41(GETDEVICEINFO
, enc_getdeviceinfo
, dec_getdeviceinfo
),
7688 PROC41(LAYOUTGET
, enc_layoutget
, dec_layoutget
),
7689 PROC41(LAYOUTCOMMIT
, enc_layoutcommit
, dec_layoutcommit
),
7690 PROC41(LAYOUTRETURN
, enc_layoutreturn
, dec_layoutreturn
),
7691 PROC41(SECINFO_NO_NAME
, enc_secinfo_no_name
, dec_secinfo_no_name
),
7692 PROC41(TEST_STATEID
, enc_test_stateid
, dec_test_stateid
),
7693 PROC41(FREE_STATEID
, enc_free_stateid
, dec_free_stateid
),
7694 STUB(GETDEVICELIST
),
7695 PROC41(BIND_CONN_TO_SESSION
,
7696 enc_bind_conn_to_session
, dec_bind_conn_to_session
),
7697 PROC41(DESTROY_CLIENTID
,enc_destroy_clientid
, dec_destroy_clientid
),
7698 PROC42(SEEK
, enc_seek
, dec_seek
),
7699 PROC42(ALLOCATE
, enc_allocate
, dec_allocate
),
7700 PROC42(DEALLOCATE
, enc_deallocate
, dec_deallocate
),
7701 PROC42(LAYOUTSTATS
, enc_layoutstats
, dec_layoutstats
),
7702 PROC42(CLONE
, enc_clone
, dec_clone
),
7703 PROC42(COPY
, enc_copy
, dec_copy
),
7704 PROC42(OFFLOAD_CANCEL
, enc_offload_cancel
, dec_offload_cancel
),
7705 PROC42(COPY_NOTIFY
, enc_copy_notify
, dec_copy_notify
),
7706 PROC(LOOKUPP
, enc_lookupp
, dec_lookupp
),
7707 PROC42(LAYOUTERROR
, enc_layouterror
, dec_layouterror
),
7708 PROC42(GETXATTR
, enc_getxattr
, dec_getxattr
),
7709 PROC42(SETXATTR
, enc_setxattr
, dec_setxattr
),
7710 PROC42(LISTXATTRS
, enc_listxattrs
, dec_listxattrs
),
7711 PROC42(REMOVEXATTR
, enc_removexattr
, dec_removexattr
),
7712 PROC42(READ_PLUS
, enc_read_plus
, dec_read_plus
),
7715 static unsigned int nfs_version4_counts
[ARRAY_SIZE(nfs4_procedures
)];
7716 const struct rpc_version nfs_version4
= {
7718 .nrprocs
= ARRAY_SIZE(nfs4_procedures
),
7719 .procs
= nfs4_procedures
,
7720 .counts
= nfs_version4_counts
,