4 * Client-side XDR for NFSv4.
6 * Copyright (c) 2002 The Regents of the University of Michigan.
9 * Kendrick Smith <kmsmith@umich.edu>
10 * Andy Adamson <andros@umich.edu>
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of the University nor the names of its
22 * contributors may be used to endorse or promote products derived
23 * from this software without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
27 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
28 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
32 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
34 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 #include <linux/param.h>
39 #include <linux/time.h>
41 #include <linux/errno.h>
42 #include <linux/string.h>
44 #include <linux/pagemap.h>
45 #include <linux/proc_fs.h>
46 #include <linux/kdev_t.h>
47 #include <linux/sunrpc/clnt.h>
48 #include <linux/sunrpc/msg_prot.h>
49 #include <linux/sunrpc/gss_api.h>
50 #include <linux/nfs.h>
51 #include <linux/nfs4.h>
52 #include <linux/nfs_fs.h>
53 #include <linux/nfs_idmap.h>
58 #define NFSDBG_FACILITY NFSDBG_XDR
60 /* Mapping from NFS error code to "errno" error code. */
61 #define errno_NFSERR_IO EIO
63 static int nfs4_stat_to_errno(int);
65 /* NFSv4 COMPOUND tags are only wanted for debugging purposes */
67 #define NFS4_MAXTAGLEN 20
69 #define NFS4_MAXTAGLEN 0
72 /* lock,open owner id:
73 * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
75 #define open_owner_id_maxsz (1 + 1 + 4)
76 #define lock_owner_id_maxsz (1 + 1 + 4)
77 #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
78 #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
79 #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
80 #define op_encode_hdr_maxsz (1)
81 #define op_decode_hdr_maxsz (2)
82 #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
83 #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE))
84 #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
85 #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE))
86 #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \
88 #define decode_putfh_maxsz (op_decode_hdr_maxsz)
89 #define encode_putrootfh_maxsz (op_encode_hdr_maxsz)
90 #define decode_putrootfh_maxsz (op_decode_hdr_maxsz)
91 #define encode_getfh_maxsz (op_encode_hdr_maxsz)
92 #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \
93 ((3+NFS4_FHSIZE) >> 2))
94 #define nfs4_fattr_bitmap_maxsz 4
95 #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
96 #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
97 #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
98 #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
99 #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
100 /* This is based on getfattr, which uses the most attributes: */
101 #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \
102 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz))
103 #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \
104 nfs4_fattr_value_maxsz)
105 #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
106 #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
111 #define encode_savefh_maxsz (op_encode_hdr_maxsz)
112 #define decode_savefh_maxsz (op_decode_hdr_maxsz)
113 #define encode_restorefh_maxsz (op_encode_hdr_maxsz)
114 #define decode_restorefh_maxsz (op_decode_hdr_maxsz)
115 #define encode_fsinfo_maxsz (encode_getattr_maxsz)
116 /* The 5 accounts for the PNFS attributes, and assumes that at most three
117 * layout types will be returned.
119 #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \
120 nfs4_fattr_bitmap_maxsz + 4 + 8 + 5)
121 #define encode_renew_maxsz (op_encode_hdr_maxsz + 3)
122 #define decode_renew_maxsz (op_decode_hdr_maxsz)
123 #define encode_setclientid_maxsz \
124 (op_encode_hdr_maxsz + \
125 XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
126 XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \
128 XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
129 XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
131 #define decode_setclientid_maxsz \
132 (op_decode_hdr_maxsz + \
134 1024) /* large value for CLID_INUSE */
135 #define encode_setclientid_confirm_maxsz \
136 (op_encode_hdr_maxsz + \
137 3 + (NFS4_VERIFIER_SIZE >> 2))
138 #define decode_setclientid_confirm_maxsz \
139 (op_decode_hdr_maxsz)
140 #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
141 #define decode_lookup_maxsz (op_decode_hdr_maxsz)
142 #define encode_share_access_maxsz \
144 #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
145 #define encode_opentype_maxsz (1 + encode_createmode_maxsz)
146 #define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
147 #define encode_open_maxsz (op_encode_hdr_maxsz + \
148 2 + encode_share_access_maxsz + 2 + \
149 open_owner_id_maxsz + \
150 encode_opentype_maxsz + \
151 encode_claim_null_maxsz)
152 #define decode_ace_maxsz (3 + nfs4_owner_maxsz)
153 #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
155 #define decode_change_info_maxsz (5)
156 #define decode_open_maxsz (op_decode_hdr_maxsz + \
157 decode_stateid_maxsz + \
158 decode_change_info_maxsz + 1 + \
159 nfs4_fattr_bitmap_maxsz + \
160 decode_delegation_maxsz)
161 #define encode_open_confirm_maxsz \
162 (op_encode_hdr_maxsz + \
163 encode_stateid_maxsz + 1)
164 #define decode_open_confirm_maxsz \
165 (op_decode_hdr_maxsz + \
166 decode_stateid_maxsz)
167 #define encode_open_downgrade_maxsz \
168 (op_encode_hdr_maxsz + \
169 encode_stateid_maxsz + 1 + \
170 encode_share_access_maxsz)
171 #define decode_open_downgrade_maxsz \
172 (op_decode_hdr_maxsz + \
173 decode_stateid_maxsz)
174 #define encode_close_maxsz (op_encode_hdr_maxsz + \
175 1 + encode_stateid_maxsz)
176 #define decode_close_maxsz (op_decode_hdr_maxsz + \
177 decode_stateid_maxsz)
178 #define encode_setattr_maxsz (op_encode_hdr_maxsz + \
179 encode_stateid_maxsz + \
181 #define decode_setattr_maxsz (op_decode_hdr_maxsz + \
182 nfs4_fattr_bitmap_maxsz)
183 #define encode_read_maxsz (op_encode_hdr_maxsz + \
184 encode_stateid_maxsz + 3)
185 #define decode_read_maxsz (op_decode_hdr_maxsz + 2)
186 #define encode_readdir_maxsz (op_encode_hdr_maxsz + \
187 2 + encode_verifier_maxsz + 5)
188 #define decode_readdir_maxsz (op_decode_hdr_maxsz + \
189 decode_verifier_maxsz)
190 #define encode_readlink_maxsz (op_encode_hdr_maxsz)
191 #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1)
192 #define encode_write_maxsz (op_encode_hdr_maxsz + \
193 encode_stateid_maxsz + 4)
194 #define decode_write_maxsz (op_decode_hdr_maxsz + \
195 2 + decode_verifier_maxsz)
196 #define encode_commit_maxsz (op_encode_hdr_maxsz + 3)
197 #define decode_commit_maxsz (op_decode_hdr_maxsz + \
198 decode_verifier_maxsz)
199 #define encode_remove_maxsz (op_encode_hdr_maxsz + \
201 #define decode_remove_maxsz (op_decode_hdr_maxsz + \
202 decode_change_info_maxsz)
203 #define encode_rename_maxsz (op_encode_hdr_maxsz + \
205 #define decode_rename_maxsz (op_decode_hdr_maxsz + \
206 decode_change_info_maxsz + \
207 decode_change_info_maxsz)
208 #define encode_link_maxsz (op_encode_hdr_maxsz + \
210 #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
211 #define encode_lockowner_maxsz (7)
212 #define encode_lock_maxsz (op_encode_hdr_maxsz + \
214 1 + encode_stateid_maxsz + 1 + \
215 encode_lockowner_maxsz)
216 #define decode_lock_denied_maxsz \
217 (8 + decode_lockowner_maxsz)
218 #define decode_lock_maxsz (op_decode_hdr_maxsz + \
219 decode_lock_denied_maxsz)
220 #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
221 encode_lockowner_maxsz)
222 #define decode_lockt_maxsz (op_decode_hdr_maxsz + \
223 decode_lock_denied_maxsz)
224 #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
225 encode_stateid_maxsz + \
227 #define decode_locku_maxsz (op_decode_hdr_maxsz + \
228 decode_stateid_maxsz)
229 #define encode_release_lockowner_maxsz \
230 (op_encode_hdr_maxsz + \
231 encode_lockowner_maxsz)
232 #define decode_release_lockowner_maxsz \
233 (op_decode_hdr_maxsz)
234 #define encode_access_maxsz (op_encode_hdr_maxsz + 1)
235 #define decode_access_maxsz (op_decode_hdr_maxsz + 2)
236 #define encode_symlink_maxsz (op_encode_hdr_maxsz + \
237 1 + nfs4_name_maxsz + \
240 #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
241 #define encode_create_maxsz (op_encode_hdr_maxsz + \
242 1 + 2 + nfs4_name_maxsz + \
244 #define decode_create_maxsz (op_decode_hdr_maxsz + \
245 decode_change_info_maxsz + \
246 nfs4_fattr_bitmap_maxsz)
247 #define encode_statfs_maxsz (encode_getattr_maxsz)
248 #define decode_statfs_maxsz (decode_getattr_maxsz)
249 #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
250 #define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
251 #define encode_getacl_maxsz (encode_getattr_maxsz)
252 #define decode_getacl_maxsz (op_decode_hdr_maxsz + \
253 nfs4_fattr_bitmap_maxsz + 1)
254 #define encode_setacl_maxsz (op_encode_hdr_maxsz + \
255 encode_stateid_maxsz + 3)
256 #define decode_setacl_maxsz (decode_setattr_maxsz)
257 #define encode_fs_locations_maxsz \
258 (encode_getattr_maxsz)
259 #define decode_fs_locations_maxsz \
261 #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
262 #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4))
264 #if defined(CONFIG_NFS_V4_1)
265 #define NFS4_MAX_MACHINE_NAME_LEN (64)
267 #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \
268 encode_verifier_maxsz + \
269 1 /* co_ownerid.len */ + \
270 XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \
273 0 /* SP4_NONE (for now) */ + \
274 1 /* zero implemetation id array */)
275 #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \
276 2 /* eir_clientid */ + \
277 1 /* eir_sequenceid */ + \
278 1 /* eir_flags */ + \
280 0 /* SP4_NONE (for now) */ + \
281 2 /* eir_server_owner.so_minor_id */ + \
282 /* eir_server_owner.so_major_id<> */ \
283 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
284 /* eir_server_scope<> */ \
285 XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \
286 1 /* eir_server_impl_id array length */ + \
287 0 /* ignored eir_server_impl_id contents */)
288 #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */)
289 #define decode_channel_attrs_maxsz (6 + \
290 1 /* ca_rdma_ird.len */ + \
292 #define encode_create_session_maxsz (op_encode_hdr_maxsz + \
293 2 /* csa_clientid */ + \
294 1 /* csa_sequence */ + \
295 1 /* csa_flags */ + \
296 encode_channel_attrs_maxsz + \
297 encode_channel_attrs_maxsz + \
298 1 /* csa_cb_program */ + \
299 1 /* csa_sec_parms.len (1) */ + \
300 1 /* cb_secflavor (AUTH_SYS) */ + \
302 1 /* machinename.len */ + \
303 XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \
306 1 /* gids.len (0) */)
307 #define decode_create_session_maxsz (op_decode_hdr_maxsz + \
308 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
309 1 /* csr_sequence */ + \
310 1 /* csr_flags */ + \
311 decode_channel_attrs_maxsz + \
312 decode_channel_attrs_maxsz)
313 #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4)
314 #define decode_destroy_session_maxsz (op_decode_hdr_maxsz)
315 #define encode_sequence_maxsz (op_encode_hdr_maxsz + \
316 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4)
317 #define decode_sequence_maxsz (op_decode_hdr_maxsz + \
318 XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5)
319 #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4)
320 #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4)
321 #define encode_getdevicelist_maxsz (op_encode_hdr_maxsz + 4 + \
322 encode_verifier_maxsz)
323 #define decode_getdevicelist_maxsz (op_decode_hdr_maxsz + \
324 2 /* nfs_cookie4 gdlr_cookie */ + \
325 decode_verifier_maxsz \
326 /* verifier4 gdlr_verifier */ + \
327 1 /* gdlr_deviceid_list count */ + \
328 XDR_QUADLEN(NFS4_PNFS_GETDEVLIST_MAXNUM * \
329 NFS4_DEVICEID4_SIZE) \
330 /* gdlr_deviceid_list */ + \
331 1 /* bool gdlr_eof */)
332 #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \
333 XDR_QUADLEN(NFS4_DEVICEID4_SIZE))
334 #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \
335 1 /* layout type */ + \
336 1 /* opaque devaddr4 length */ + \
337 /* devaddr4 payload is read into page */ \
338 1 /* notification bitmap length */ + \
339 1 /* notification bitmap */)
340 #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \
341 encode_stateid_maxsz)
342 #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \
343 decode_stateid_maxsz + \
344 XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE))
345 #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \
349 encode_stateid_maxsz + \
350 1 /* new offset (true) */ + \
351 2 /* last byte written */ + \
352 1 /* nt_timechanged (false) */ + \
353 1 /* layoutupdate4 layout type */ + \
354 1 /* NULL filelayout layoutupdate4 payload */)
355 #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3)
356 #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \
357 encode_stateid_maxsz + \
358 1 /* FIXME: opaque lrf_body always empty at the moment */)
359 #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \
360 1 + decode_stateid_maxsz)
361 #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1)
362 #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz
363 #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \
364 XDR_QUADLEN(NFS4_STATEID_SIZE))
365 #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1)
366 #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \
367 XDR_QUADLEN(NFS4_STATEID_SIZE))
368 #define decode_free_stateid_maxsz (op_decode_hdr_maxsz + 1)
369 #else /* CONFIG_NFS_V4_1 */
370 #define encode_sequence_maxsz 0
371 #define decode_sequence_maxsz 0
372 #endif /* CONFIG_NFS_V4_1 */
374 #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
375 #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
376 #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
377 encode_sequence_maxsz + \
378 encode_putfh_maxsz + \
380 #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \
381 decode_sequence_maxsz + \
382 decode_putfh_maxsz + \
384 #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \
385 encode_sequence_maxsz + \
386 encode_putfh_maxsz + \
387 encode_readlink_maxsz)
388 #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
389 decode_sequence_maxsz + \
390 decode_putfh_maxsz + \
391 decode_readlink_maxsz)
392 #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
393 encode_sequence_maxsz + \
394 encode_putfh_maxsz + \
395 encode_readdir_maxsz)
396 #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
397 decode_sequence_maxsz + \
398 decode_putfh_maxsz + \
399 decode_readdir_maxsz)
400 #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
401 encode_sequence_maxsz + \
402 encode_putfh_maxsz + \
403 encode_write_maxsz + \
404 encode_getattr_maxsz)
405 #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \
406 decode_sequence_maxsz + \
407 decode_putfh_maxsz + \
408 decode_write_maxsz + \
409 decode_getattr_maxsz)
410 #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \
411 encode_sequence_maxsz + \
412 encode_putfh_maxsz + \
413 encode_commit_maxsz + \
414 encode_getattr_maxsz)
415 #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \
416 decode_sequence_maxsz + \
417 decode_putfh_maxsz + \
418 decode_commit_maxsz + \
419 decode_getattr_maxsz)
420 #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \
421 encode_sequence_maxsz + \
422 encode_putfh_maxsz + \
423 encode_savefh_maxsz + \
424 encode_open_maxsz + \
425 encode_getfh_maxsz + \
426 encode_getattr_maxsz + \
427 encode_restorefh_maxsz + \
428 encode_getattr_maxsz)
429 #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \
430 decode_sequence_maxsz + \
431 decode_putfh_maxsz + \
432 decode_savefh_maxsz + \
433 decode_open_maxsz + \
434 decode_getfh_maxsz + \
435 decode_getattr_maxsz + \
436 decode_restorefh_maxsz + \
437 decode_getattr_maxsz)
438 #define NFS4_enc_open_confirm_sz \
439 (compound_encode_hdr_maxsz + \
440 encode_putfh_maxsz + \
441 encode_open_confirm_maxsz)
442 #define NFS4_dec_open_confirm_sz \
443 (compound_decode_hdr_maxsz + \
444 decode_putfh_maxsz + \
445 decode_open_confirm_maxsz)
446 #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
447 encode_sequence_maxsz + \
448 encode_putfh_maxsz + \
449 encode_open_maxsz + \
450 encode_getattr_maxsz)
451 #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
452 decode_sequence_maxsz + \
453 decode_putfh_maxsz + \
454 decode_open_maxsz + \
455 decode_getattr_maxsz)
456 #define NFS4_enc_open_downgrade_sz \
457 (compound_encode_hdr_maxsz + \
458 encode_sequence_maxsz + \
459 encode_putfh_maxsz + \
460 encode_open_downgrade_maxsz + \
461 encode_getattr_maxsz)
462 #define NFS4_dec_open_downgrade_sz \
463 (compound_decode_hdr_maxsz + \
464 decode_sequence_maxsz + \
465 decode_putfh_maxsz + \
466 decode_open_downgrade_maxsz + \
467 decode_getattr_maxsz)
468 #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
469 encode_sequence_maxsz + \
470 encode_putfh_maxsz + \
471 encode_close_maxsz + \
472 encode_getattr_maxsz)
473 #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
474 decode_sequence_maxsz + \
475 decode_putfh_maxsz + \
476 decode_close_maxsz + \
477 decode_getattr_maxsz)
478 #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
479 encode_sequence_maxsz + \
480 encode_putfh_maxsz + \
481 encode_setattr_maxsz + \
482 encode_getattr_maxsz)
483 #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \
484 decode_sequence_maxsz + \
485 decode_putfh_maxsz + \
486 decode_setattr_maxsz + \
487 decode_getattr_maxsz)
488 #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \
489 encode_sequence_maxsz + \
490 encode_putfh_maxsz + \
492 #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \
493 decode_sequence_maxsz + \
494 decode_putfh_maxsz + \
496 #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \
498 #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \
500 #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \
501 encode_setclientid_maxsz)
502 #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \
503 decode_setclientid_maxsz)
504 #define NFS4_enc_setclientid_confirm_sz \
505 (compound_encode_hdr_maxsz + \
506 encode_setclientid_confirm_maxsz + \
507 encode_putrootfh_maxsz + \
509 #define NFS4_dec_setclientid_confirm_sz \
510 (compound_decode_hdr_maxsz + \
511 decode_setclientid_confirm_maxsz + \
512 decode_putrootfh_maxsz + \
514 #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \
515 encode_sequence_maxsz + \
516 encode_putfh_maxsz + \
518 #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \
519 decode_sequence_maxsz + \
520 decode_putfh_maxsz + \
522 #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \
523 encode_sequence_maxsz + \
524 encode_putfh_maxsz + \
526 #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \
527 decode_sequence_maxsz + \
528 decode_putfh_maxsz + \
530 #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \
531 encode_sequence_maxsz + \
532 encode_putfh_maxsz + \
534 #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \
535 decode_sequence_maxsz + \
536 decode_putfh_maxsz + \
538 #define NFS4_enc_release_lockowner_sz \
539 (compound_encode_hdr_maxsz + \
540 encode_lockowner_maxsz)
541 #define NFS4_dec_release_lockowner_sz \
542 (compound_decode_hdr_maxsz + \
543 decode_lockowner_maxsz)
544 #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
545 encode_sequence_maxsz + \
546 encode_putfh_maxsz + \
547 encode_access_maxsz + \
548 encode_getattr_maxsz)
549 #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \
550 decode_sequence_maxsz + \
551 decode_putfh_maxsz + \
552 decode_access_maxsz + \
553 decode_getattr_maxsz)
554 #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \
555 encode_sequence_maxsz + \
556 encode_putfh_maxsz + \
557 encode_getattr_maxsz)
558 #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \
559 decode_sequence_maxsz + \
560 decode_putfh_maxsz + \
561 decode_getattr_maxsz)
562 #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \
563 encode_sequence_maxsz + \
564 encode_putfh_maxsz + \
565 encode_lookup_maxsz + \
566 encode_getattr_maxsz + \
568 #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \
569 decode_sequence_maxsz + \
570 decode_putfh_maxsz + \
571 decode_lookup_maxsz + \
572 decode_getattr_maxsz + \
574 #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
575 encode_sequence_maxsz + \
576 encode_putrootfh_maxsz + \
577 encode_getattr_maxsz + \
579 #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \
580 decode_sequence_maxsz + \
581 decode_putrootfh_maxsz + \
582 decode_getattr_maxsz + \
584 #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \
585 encode_sequence_maxsz + \
586 encode_putfh_maxsz + \
587 encode_remove_maxsz + \
588 encode_getattr_maxsz)
589 #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \
590 decode_sequence_maxsz + \
591 decode_putfh_maxsz + \
592 decode_remove_maxsz + \
593 decode_getattr_maxsz)
594 #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \
595 encode_sequence_maxsz + \
596 encode_putfh_maxsz + \
597 encode_savefh_maxsz + \
598 encode_putfh_maxsz + \
599 encode_rename_maxsz + \
600 encode_getattr_maxsz + \
601 encode_restorefh_maxsz + \
602 encode_getattr_maxsz)
603 #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \
604 decode_sequence_maxsz + \
605 decode_putfh_maxsz + \
606 decode_savefh_maxsz + \
607 decode_putfh_maxsz + \
608 decode_rename_maxsz + \
609 decode_getattr_maxsz + \
610 decode_restorefh_maxsz + \
611 decode_getattr_maxsz)
612 #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \
613 encode_sequence_maxsz + \
614 encode_putfh_maxsz + \
615 encode_savefh_maxsz + \
616 encode_putfh_maxsz + \
617 encode_link_maxsz + \
618 decode_getattr_maxsz + \
619 encode_restorefh_maxsz + \
620 decode_getattr_maxsz)
621 #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \
622 decode_sequence_maxsz + \
623 decode_putfh_maxsz + \
624 decode_savefh_maxsz + \
625 decode_putfh_maxsz + \
626 decode_link_maxsz + \
627 decode_getattr_maxsz + \
628 decode_restorefh_maxsz + \
629 decode_getattr_maxsz)
630 #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
631 encode_sequence_maxsz + \
632 encode_putfh_maxsz + \
633 encode_symlink_maxsz + \
634 encode_getattr_maxsz + \
636 #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
637 decode_sequence_maxsz + \
638 decode_putfh_maxsz + \
639 decode_symlink_maxsz + \
640 decode_getattr_maxsz + \
642 #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
643 encode_sequence_maxsz + \
644 encode_putfh_maxsz + \
645 encode_savefh_maxsz + \
646 encode_create_maxsz + \
647 encode_getfh_maxsz + \
648 encode_getattr_maxsz + \
649 encode_restorefh_maxsz + \
650 encode_getattr_maxsz)
651 #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \
652 decode_sequence_maxsz + \
653 decode_putfh_maxsz + \
654 decode_savefh_maxsz + \
655 decode_create_maxsz + \
656 decode_getfh_maxsz + \
657 decode_getattr_maxsz + \
658 decode_restorefh_maxsz + \
659 decode_getattr_maxsz)
660 #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \
661 encode_sequence_maxsz + \
662 encode_putfh_maxsz + \
663 encode_getattr_maxsz)
664 #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \
665 decode_sequence_maxsz + \
666 decode_putfh_maxsz + \
667 decode_getattr_maxsz)
668 #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \
669 encode_sequence_maxsz + \
670 encode_putfh_maxsz + \
672 #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \
673 decode_sequence_maxsz + \
674 decode_putfh_maxsz + \
676 #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \
677 encode_sequence_maxsz + \
678 encode_putfh_maxsz + \
679 encode_getattr_maxsz)
680 #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
681 decode_sequence_maxsz + \
682 decode_putfh_maxsz + \
683 decode_getattr_maxsz)
684 #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
685 encode_sequence_maxsz + \
686 encode_putfh_maxsz + \
687 encode_delegreturn_maxsz + \
688 encode_getattr_maxsz)
689 #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
690 decode_sequence_maxsz + \
691 decode_delegreturn_maxsz + \
692 decode_getattr_maxsz)
693 #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
694 encode_sequence_maxsz + \
695 encode_putfh_maxsz + \
697 #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \
698 decode_sequence_maxsz + \
699 decode_putfh_maxsz + \
701 #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
702 encode_sequence_maxsz + \
703 encode_putfh_maxsz + \
705 #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
706 decode_sequence_maxsz + \
707 decode_putfh_maxsz + \
709 #define NFS4_enc_fs_locations_sz \
710 (compound_encode_hdr_maxsz + \
711 encode_sequence_maxsz + \
712 encode_putfh_maxsz + \
713 encode_lookup_maxsz + \
714 encode_fs_locations_maxsz)
715 #define NFS4_dec_fs_locations_sz \
716 (compound_decode_hdr_maxsz + \
717 decode_sequence_maxsz + \
718 decode_putfh_maxsz + \
719 decode_lookup_maxsz + \
720 decode_fs_locations_maxsz)
721 #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \
722 encode_sequence_maxsz + \
723 encode_putfh_maxsz + \
724 encode_secinfo_maxsz)
725 #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \
726 decode_sequence_maxsz + \
727 decode_putfh_maxsz + \
728 decode_secinfo_maxsz)
729 #if defined(CONFIG_NFS_V4_1)
730 #define NFS4_enc_exchange_id_sz \
731 (compound_encode_hdr_maxsz + \
732 encode_exchange_id_maxsz)
733 #define NFS4_dec_exchange_id_sz \
734 (compound_decode_hdr_maxsz + \
735 decode_exchange_id_maxsz)
736 #define NFS4_enc_create_session_sz \
737 (compound_encode_hdr_maxsz + \
738 encode_create_session_maxsz)
739 #define NFS4_dec_create_session_sz \
740 (compound_decode_hdr_maxsz + \
741 decode_create_session_maxsz)
742 #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \
743 encode_destroy_session_maxsz)
744 #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \
745 decode_destroy_session_maxsz)
746 #define NFS4_enc_sequence_sz \
747 (compound_decode_hdr_maxsz + \
748 encode_sequence_maxsz)
749 #define NFS4_dec_sequence_sz \
750 (compound_decode_hdr_maxsz + \
751 decode_sequence_maxsz)
752 #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \
753 encode_sequence_maxsz + \
754 encode_putrootfh_maxsz + \
756 #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \
757 decode_sequence_maxsz + \
758 decode_putrootfh_maxsz + \
760 #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \
761 encode_sequence_maxsz + \
762 encode_reclaim_complete_maxsz)
763 #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \
764 decode_sequence_maxsz + \
765 decode_reclaim_complete_maxsz)
766 #define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \
767 encode_sequence_maxsz + \
768 encode_putfh_maxsz + \
769 encode_getdevicelist_maxsz)
770 #define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \
771 decode_sequence_maxsz + \
772 decode_putfh_maxsz + \
773 decode_getdevicelist_maxsz)
774 #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \
775 encode_sequence_maxsz +\
776 encode_getdeviceinfo_maxsz)
777 #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \
778 decode_sequence_maxsz + \
779 decode_getdeviceinfo_maxsz)
780 #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \
781 encode_sequence_maxsz + \
782 encode_putfh_maxsz + \
783 encode_layoutget_maxsz)
784 #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \
785 decode_sequence_maxsz + \
786 decode_putfh_maxsz + \
787 decode_layoutget_maxsz)
788 #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \
789 encode_sequence_maxsz +\
790 encode_putfh_maxsz + \
791 encode_layoutcommit_maxsz + \
792 encode_getattr_maxsz)
793 #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \
794 decode_sequence_maxsz + \
795 decode_putfh_maxsz + \
796 decode_layoutcommit_maxsz + \
797 decode_getattr_maxsz)
798 #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \
799 encode_sequence_maxsz + \
800 encode_putfh_maxsz + \
801 encode_layoutreturn_maxsz)
802 #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \
803 decode_sequence_maxsz + \
804 decode_putfh_maxsz + \
805 decode_layoutreturn_maxsz)
806 #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \
807 encode_sequence_maxsz + \
808 encode_putrootfh_maxsz +\
809 encode_secinfo_no_name_maxsz)
810 #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \
811 decode_sequence_maxsz + \
812 decode_putrootfh_maxsz + \
813 decode_secinfo_no_name_maxsz)
814 #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \
815 encode_sequence_maxsz + \
816 encode_test_stateid_maxsz)
817 #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \
818 decode_sequence_maxsz + \
819 decode_test_stateid_maxsz)
820 #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \
821 encode_sequence_maxsz + \
822 encode_free_stateid_maxsz)
823 #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \
824 decode_sequence_maxsz + \
825 decode_free_stateid_maxsz)
827 const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
828 compound_encode_hdr_maxsz +
829 encode_sequence_maxsz +
831 encode_getattr_maxsz) *
834 const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH +
835 compound_decode_hdr_maxsz +
836 decode_sequence_maxsz +
837 decode_putfh_maxsz) *
839 #endif /* CONFIG_NFS_V4_1 */
841 static const umode_t nfs_type2fmt[] = {
848 [NF4SOCK] = S_IFSOCK,
854 struct compound_hdr {
860 uint32_t replen; /* expected reply words */
864 static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes)
866 __be32 *p = xdr_reserve_space(xdr, nbytes);
871 static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
875 p = xdr_reserve_space(xdr, 4 + len);
877 xdr_encode_opaque(p, str, len);
880 static void encode_compound_hdr(struct xdr_stream *xdr,
881 struct rpc_rqst *req,
882 struct compound_hdr *hdr)
885 struct rpc_auth *auth = req->rq_cred->cr_auth;
887 /* initialize running count of expected bytes in reply.
888 * NOTE: the replied tag SHOULD be the same is the one sent,
889 * but this is not required as a MUST for the server to do so. */
890 hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen;
892 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag);
893 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN);
894 p = reserve_space(xdr, 4 + hdr->taglen + 8);
895 p = xdr_encode_opaque(p, hdr->tag, hdr->taglen);
896 *p++ = cpu_to_be32(hdr->minorversion);
898 *p = cpu_to_be32(hdr->nops);
901 static void encode_nops(struct compound_hdr *hdr)
903 BUG_ON(hdr->nops > NFS4_MAX_OPS);
904 *hdr->nops_p = htonl(hdr->nops);
907 static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
911 p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE);
913 xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE);
916 static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
918 char owner_name[IDMAP_NAMESZ];
919 char owner_group[IDMAP_NAMESZ];
920 int owner_namelen = 0;
921 int owner_grouplen = 0;
929 * We reserve enough space to write the entire attribute buffer at once.
930 * In the worst-case, this would be
931 * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
932 * = 36 bytes, plus any contribution from variable-length fields
933 * such as owner/group.
938 if (iap->ia_valid & ATTR_SIZE)
940 if (iap->ia_valid & ATTR_MODE)
942 if (iap->ia_valid & ATTR_UID) {
943 owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ);
944 if (owner_namelen < 0) {
945 dprintk("nfs: couldn't resolve uid %d to string\n",
948 strcpy(owner_name, "nobody");
949 owner_namelen = sizeof("nobody") - 1;
952 len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
954 if (iap->ia_valid & ATTR_GID) {
955 owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ);
956 if (owner_grouplen < 0) {
957 dprintk("nfs: couldn't resolve gid %d to string\n",
959 strcpy(owner_group, "nobody");
960 owner_grouplen = sizeof("nobody") - 1;
963 len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
965 if (iap->ia_valid & ATTR_ATIME_SET)
967 else if (iap->ia_valid & ATTR_ATIME)
969 if (iap->ia_valid & ATTR_MTIME_SET)
971 else if (iap->ia_valid & ATTR_MTIME)
973 p = reserve_space(xdr, len);
976 * We write the bitmap length now, but leave the bitmap and the attribute
977 * buffer length to be backfilled at the end of this routine.
979 *p++ = cpu_to_be32(2);
983 if (iap->ia_valid & ATTR_SIZE) {
984 bmval0 |= FATTR4_WORD0_SIZE;
985 p = xdr_encode_hyper(p, iap->ia_size);
987 if (iap->ia_valid & ATTR_MODE) {
988 bmval1 |= FATTR4_WORD1_MODE;
989 *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
991 if (iap->ia_valid & ATTR_UID) {
992 bmval1 |= FATTR4_WORD1_OWNER;
993 p = xdr_encode_opaque(p, owner_name, owner_namelen);
995 if (iap->ia_valid & ATTR_GID) {
996 bmval1 |= FATTR4_WORD1_OWNER_GROUP;
997 p = xdr_encode_opaque(p, owner_group, owner_grouplen);
999 if (iap->ia_valid & ATTR_ATIME_SET) {
1000 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
1001 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
1002 *p++ = cpu_to_be32(0);
1003 *p++ = cpu_to_be32(iap->ia_atime.tv_sec);
1004 *p++ = cpu_to_be32(iap->ia_atime.tv_nsec);
1006 else if (iap->ia_valid & ATTR_ATIME) {
1007 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
1008 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
1010 if (iap->ia_valid & ATTR_MTIME_SET) {
1011 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
1012 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
1013 *p++ = cpu_to_be32(0);
1014 *p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
1015 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
1017 else if (iap->ia_valid & ATTR_MTIME) {
1018 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
1019 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
1023 * Now we backfill the bitmap and the attribute buffer length.
1025 if (len != ((char *)p - (char *)q) + 4) {
1026 printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n",
1027 len, ((char *)p - (char *)q) + 4);
1030 len = (char *)p - (char *)q - 12;
1031 *q++ = htonl(bmval0);
1032 *q++ = htonl(bmval1);
1038 static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr)
1042 p = reserve_space(xdr, 8);
1043 *p++ = cpu_to_be32(OP_ACCESS);
1044 *p = cpu_to_be32(access);
1046 hdr->replen += decode_access_maxsz;
1049 static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
1053 p = reserve_space(xdr, 8+NFS4_STATEID_SIZE);
1054 *p++ = cpu_to_be32(OP_CLOSE);
1055 *p++ = cpu_to_be32(arg->seqid->sequence->counter);
1056 xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
1058 hdr->replen += decode_close_maxsz;
1061 static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
1065 p = reserve_space(xdr, 16);
1066 *p++ = cpu_to_be32(OP_COMMIT);
1067 p = xdr_encode_hyper(p, args->offset);
1068 *p = cpu_to_be32(args->count);
1070 hdr->replen += decode_commit_maxsz;
1073 static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr)
1077 p = reserve_space(xdr, 8);
1078 *p++ = cpu_to_be32(OP_CREATE);
1079 *p = cpu_to_be32(create->ftype);
1081 switch (create->ftype) {
1083 p = reserve_space(xdr, 4);
1084 *p = cpu_to_be32(create->u.symlink.len);
1085 xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len);
1088 case NF4BLK: case NF4CHR:
1089 p = reserve_space(xdr, 8);
1090 *p++ = cpu_to_be32(create->u.device.specdata1);
1091 *p = cpu_to_be32(create->u.device.specdata2);
1098 encode_string(xdr, create->name->len, create->name->name);
1100 hdr->replen += decode_create_maxsz;
1102 encode_attrs(xdr, create->attrs, create->server);
1105 static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr)
1109 p = reserve_space(xdr, 12);
1110 *p++ = cpu_to_be32(OP_GETATTR);
1111 *p++ = cpu_to_be32(1);
1112 *p = cpu_to_be32(bitmap);
1114 hdr->replen += decode_getattr_maxsz;
1117 static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr)
1121 p = reserve_space(xdr, 16);
1122 *p++ = cpu_to_be32(OP_GETATTR);
1123 *p++ = cpu_to_be32(2);
1124 *p++ = cpu_to_be32(bm0);
1125 *p = cpu_to_be32(bm1);
1127 hdr->replen += decode_getattr_maxsz;
1131 encode_getattr_three(struct xdr_stream *xdr,
1132 uint32_t bm0, uint32_t bm1, uint32_t bm2,
1133 struct compound_hdr *hdr)
1137 p = reserve_space(xdr, 4);
1138 *p = cpu_to_be32(OP_GETATTR);
1140 p = reserve_space(xdr, 16);
1141 *p++ = cpu_to_be32(3);
1142 *p++ = cpu_to_be32(bm0);
1143 *p++ = cpu_to_be32(bm1);
1144 *p = cpu_to_be32(bm2);
1146 p = reserve_space(xdr, 12);
1147 *p++ = cpu_to_be32(2);
1148 *p++ = cpu_to_be32(bm0);
1149 *p = cpu_to_be32(bm1);
1151 p = reserve_space(xdr, 8);
1152 *p++ = cpu_to_be32(1);
1153 *p = cpu_to_be32(bm0);
1156 hdr->replen += decode_getattr_maxsz;
1159 static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1161 encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0],
1162 bitmask[1] & nfs4_fattr_bitmap[1], hdr);
1165 static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1167 encode_getattr_three(xdr,
1168 bitmask[0] & nfs4_fsinfo_bitmap[0],
1169 bitmask[1] & nfs4_fsinfo_bitmap[1],
1170 bitmask[2] & nfs4_fsinfo_bitmap[2],
1174 static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
1176 encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0],
1177 bitmask[1] & nfs4_fs_locations_bitmap[1], hdr);
1180 static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1184 p = reserve_space(xdr, 4);
1185 *p = cpu_to_be32(OP_GETFH);
1187 hdr->replen += decode_getfh_maxsz;
1190 static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1194 p = reserve_space(xdr, 8 + name->len);
1195 *p++ = cpu_to_be32(OP_LINK);
1196 xdr_encode_opaque(p, name->name, name->len);
1198 hdr->replen += decode_link_maxsz;
1201 static inline int nfs4_lock_type(struct file_lock *fl, int block)
1203 if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK)
1204 return block ? NFS4_READW_LT : NFS4_READ_LT;
1205 return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT;
1208 static inline uint64_t nfs4_lock_length(struct file_lock *fl)
1210 if (fl->fl_end == OFFSET_MAX)
1211 return ~(uint64_t)0;
1212 return fl->fl_end - fl->fl_start + 1;
1215 static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner)
1219 p = reserve_space(xdr, 32);
1220 p = xdr_encode_hyper(p, lowner->clientid);
1221 *p++ = cpu_to_be32(20);
1222 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
1223 *p++ = cpu_to_be32(lowner->s_dev);
1224 xdr_encode_hyper(p, lowner->id);
1228 * opcode,type,reclaim,offset,length,new_lock_owner = 32
1229 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
1231 static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr)
1235 p = reserve_space(xdr, 32);
1236 *p++ = cpu_to_be32(OP_LOCK);
1237 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block));
1238 *p++ = cpu_to_be32(args->reclaim);
1239 p = xdr_encode_hyper(p, args->fl->fl_start);
1240 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1241 *p = cpu_to_be32(args->new_lock_owner);
1242 if (args->new_lock_owner){
1243 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
1244 *p++ = cpu_to_be32(args->open_seqid->sequence->counter);
1245 p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE);
1246 *p++ = cpu_to_be32(args->lock_seqid->sequence->counter);
1247 encode_lockowner(xdr, &args->lock_owner);
1250 p = reserve_space(xdr, NFS4_STATEID_SIZE+4);
1251 p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE);
1252 *p = cpu_to_be32(args->lock_seqid->sequence->counter);
1255 hdr->replen += decode_lock_maxsz;
1258 static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr)
1262 p = reserve_space(xdr, 24);
1263 *p++ = cpu_to_be32(OP_LOCKT);
1264 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1265 p = xdr_encode_hyper(p, args->fl->fl_start);
1266 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1267 encode_lockowner(xdr, &args->lock_owner);
1269 hdr->replen += decode_lockt_maxsz;
1272 static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr)
1276 p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16);
1277 *p++ = cpu_to_be32(OP_LOCKU);
1278 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1279 *p++ = cpu_to_be32(args->seqid->sequence->counter);
1280 p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
1281 p = xdr_encode_hyper(p, args->fl->fl_start);
1282 xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1284 hdr->replen += decode_locku_maxsz;
1287 static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr)
1291 p = reserve_space(xdr, 4);
1292 *p = cpu_to_be32(OP_RELEASE_LOCKOWNER);
1293 encode_lockowner(xdr, lowner);
1295 hdr->replen += decode_release_lockowner_maxsz;
1298 static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1300 int len = name->len;
1303 p = reserve_space(xdr, 8 + len);
1304 *p++ = cpu_to_be32(OP_LOOKUP);
1305 xdr_encode_opaque(p, name->name, len);
1307 hdr->replen += decode_lookup_maxsz;
1310 static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode)
1314 p = reserve_space(xdr, 8);
1315 switch (fmode & (FMODE_READ|FMODE_WRITE)) {
1317 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ);
1320 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE);
1322 case FMODE_READ|FMODE_WRITE:
1323 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH);
1326 *p++ = cpu_to_be32(0);
1328 *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */
1331 static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1335 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1338 p = reserve_space(xdr, 8);
1339 *p++ = cpu_to_be32(OP_OPEN);
1340 *p = cpu_to_be32(arg->seqid->sequence->counter);
1341 encode_share_access(xdr, arg->fmode);
1342 p = reserve_space(xdr, 32);
1343 p = xdr_encode_hyper(p, arg->clientid);
1344 *p++ = cpu_to_be32(20);
1345 p = xdr_encode_opaque_fixed(p, "open id:", 8);
1346 *p++ = cpu_to_be32(arg->server->s_dev);
1347 xdr_encode_hyper(p, arg->id);
1350 static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1353 struct nfs_client *clp;
1355 p = reserve_space(xdr, 4);
1356 switch(arg->open_flags & O_EXCL) {
1358 *p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
1359 encode_attrs(xdr, arg->u.attrs, arg->server);
1362 clp = arg->server->nfs_client;
1363 if (clp->cl_mvops->minor_version > 0) {
1364 if (nfs4_has_persistent_session(clp)) {
1365 *p = cpu_to_be32(NFS4_CREATE_GUARDED);
1366 encode_attrs(xdr, arg->u.attrs, arg->server);
1370 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1);
1371 encode_nfs4_verifier(xdr, &arg->u.verifier);
1373 encode_attrs(xdr, &dummy, arg->server);
1376 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
1377 encode_nfs4_verifier(xdr, &arg->u.verifier);
1382 static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1386 p = reserve_space(xdr, 4);
1387 switch (arg->open_flags & O_CREAT) {
1389 *p = cpu_to_be32(NFS4_OPEN_NOCREATE);
1392 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
1393 *p = cpu_to_be32(NFS4_OPEN_CREATE);
1394 encode_createmode(xdr, arg);
1398 static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type)
1402 p = reserve_space(xdr, 4);
1403 switch (delegation_type) {
1405 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE);
1408 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ);
1410 case FMODE_WRITE|FMODE_READ:
1411 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE);
1418 static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
1422 p = reserve_space(xdr, 4);
1423 *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL);
1424 encode_string(xdr, name->len, name->name);
1427 static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type)
1431 p = reserve_space(xdr, 4);
1432 *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS);
1433 encode_delegation_type(xdr, type);
1436 static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
1440 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1441 *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
1442 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
1443 encode_string(xdr, name->len, name->name);
1446 static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr)
1448 encode_openhdr(xdr, arg);
1449 encode_opentype(xdr, arg);
1450 switch (arg->claim) {
1451 case NFS4_OPEN_CLAIM_NULL:
1452 encode_claim_null(xdr, arg->name);
1454 case NFS4_OPEN_CLAIM_PREVIOUS:
1455 encode_claim_previous(xdr, arg->u.delegation_type);
1457 case NFS4_OPEN_CLAIM_DELEGATE_CUR:
1458 encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
1464 hdr->replen += decode_open_maxsz;
1467 static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr)
1471 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
1472 *p++ = cpu_to_be32(OP_OPEN_CONFIRM);
1473 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
1474 *p = cpu_to_be32(arg->seqid->sequence->counter);
1476 hdr->replen += decode_open_confirm_maxsz;
1479 static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
1483 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
1484 *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE);
1485 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
1486 *p = cpu_to_be32(arg->seqid->sequence->counter);
1487 encode_share_access(xdr, arg->fmode);
1489 hdr->replen += decode_open_downgrade_maxsz;
1493 encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr)
1498 p = reserve_space(xdr, 8 + len);
1499 *p++ = cpu_to_be32(OP_PUTFH);
1500 xdr_encode_opaque(p, fh->data, len);
1502 hdr->replen += decode_putfh_maxsz;
1505 static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1509 p = reserve_space(xdr, 4);
1510 *p = cpu_to_be32(OP_PUTROOTFH);
1512 hdr->replen += decode_putrootfh_maxsz;
1515 static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx, int zero_seqid)
1517 nfs4_stateid stateid;
1520 p = reserve_space(xdr, NFS4_STATEID_SIZE);
1521 if (ctx->state != NULL) {
1522 nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid);
1524 stateid.stateid.seqid = 0;
1525 xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE);
1527 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
1530 static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr)
1534 p = reserve_space(xdr, 4);
1535 *p = cpu_to_be32(OP_READ);
1537 encode_stateid(xdr, args->context, args->lock_context,
1540 p = reserve_space(xdr, 12);
1541 p = xdr_encode_hyper(p, args->offset);
1542 *p = cpu_to_be32(args->count);
1544 hdr->replen += decode_read_maxsz;
1547 static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr)
1549 uint32_t attrs[2] = {
1550 FATTR4_WORD0_RDATTR_ERROR,
1551 FATTR4_WORD1_MOUNTED_ON_FILEID,
1553 uint32_t dircount = readdir->count >> 1;
1556 if (readdir->plus) {
1557 attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE|
1558 FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID;
1559 attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER|
1560 FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV|
1561 FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS|
1562 FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
1565 /* Use mounted_on_fileid only if the server supports it */
1566 if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID))
1567 attrs[0] |= FATTR4_WORD0_FILEID;
1569 p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20);
1570 *p++ = cpu_to_be32(OP_READDIR);
1571 p = xdr_encode_hyper(p, readdir->cookie);
1572 p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE);
1573 *p++ = cpu_to_be32(dircount);
1574 *p++ = cpu_to_be32(readdir->count);
1575 *p++ = cpu_to_be32(2);
1577 *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]);
1578 *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]);
1580 hdr->replen += decode_readdir_maxsz;
1581 dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n",
1583 (unsigned long long)readdir->cookie,
1584 ((u32 *)readdir->verifier.data)[0],
1585 ((u32 *)readdir->verifier.data)[1],
1586 attrs[0] & readdir->bitmask[0],
1587 attrs[1] & readdir->bitmask[1]);
1590 static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr)
1594 p = reserve_space(xdr, 4);
1595 *p = cpu_to_be32(OP_READLINK);
1597 hdr->replen += decode_readlink_maxsz;
1600 static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1604 p = reserve_space(xdr, 8 + name->len);
1605 *p++ = cpu_to_be32(OP_REMOVE);
1606 xdr_encode_opaque(p, name->name, name->len);
1608 hdr->replen += decode_remove_maxsz;
1611 static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr)
1615 p = reserve_space(xdr, 4);
1616 *p = cpu_to_be32(OP_RENAME);
1617 encode_string(xdr, oldname->len, oldname->name);
1618 encode_string(xdr, newname->len, newname->name);
1620 hdr->replen += decode_rename_maxsz;
1623 static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr)
1627 p = reserve_space(xdr, 12);
1628 *p++ = cpu_to_be32(OP_RENEW);
1629 xdr_encode_hyper(p, client_stateid->cl_clientid);
1631 hdr->replen += decode_renew_maxsz;
1635 encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1639 p = reserve_space(xdr, 4);
1640 *p = cpu_to_be32(OP_RESTOREFH);
1642 hdr->replen += decode_restorefh_maxsz;
1646 encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr)
1650 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1651 *p++ = cpu_to_be32(OP_SETATTR);
1652 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
1653 p = reserve_space(xdr, 2*4);
1654 *p++ = cpu_to_be32(1);
1655 *p = cpu_to_be32(FATTR4_WORD0_ACL);
1656 BUG_ON(arg->acl_len % 4);
1657 p = reserve_space(xdr, 4);
1658 *p = cpu_to_be32(arg->acl_len);
1659 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
1661 hdr->replen += decode_setacl_maxsz;
1665 encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1669 p = reserve_space(xdr, 4);
1670 *p = cpu_to_be32(OP_SAVEFH);
1672 hdr->replen += decode_savefh_maxsz;
1675 static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr)
1679 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1680 *p++ = cpu_to_be32(OP_SETATTR);
1681 xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE);
1683 hdr->replen += decode_setattr_maxsz;
1684 encode_attrs(xdr, arg->iap, server);
1687 static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr)
1691 p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE);
1692 *p++ = cpu_to_be32(OP_SETCLIENTID);
1693 xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE);
1695 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
1696 p = reserve_space(xdr, 4);
1697 *p = cpu_to_be32(setclientid->sc_prog);
1698 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1699 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
1700 p = reserve_space(xdr, 4);
1701 *p = cpu_to_be32(setclientid->sc_cb_ident);
1703 hdr->replen += decode_setclientid_maxsz;
1706 static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr)
1710 p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE);
1711 *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM);
1712 p = xdr_encode_hyper(p, arg->clientid);
1713 xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE);
1715 hdr->replen += decode_setclientid_confirm_maxsz;
1718 static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
1722 p = reserve_space(xdr, 4);
1723 *p = cpu_to_be32(OP_WRITE);
1725 encode_stateid(xdr, args->context, args->lock_context,
1728 p = reserve_space(xdr, 16);
1729 p = xdr_encode_hyper(p, args->offset);
1730 *p++ = cpu_to_be32(args->stable);
1731 *p = cpu_to_be32(args->count);
1733 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
1735 hdr->replen += decode_write_maxsz;
1738 static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr)
1742 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1744 *p++ = cpu_to_be32(OP_DELEGRETURN);
1745 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
1747 hdr->replen += decode_delegreturn_maxsz;
1750 static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
1752 int len = name->len;
1755 p = reserve_space(xdr, 8 + len);
1756 *p++ = cpu_to_be32(OP_SECINFO);
1757 xdr_encode_opaque(p, name->name, len);
1759 hdr->replen += decode_secinfo_maxsz;
1762 #if defined(CONFIG_NFS_V4_1)
1763 /* NFSv4.1 operations */
1764 static void encode_exchange_id(struct xdr_stream *xdr,
1765 struct nfs41_exchange_id_args *args,
1766 struct compound_hdr *hdr)
1770 p = reserve_space(xdr, 4 + sizeof(args->verifier->data));
1771 *p++ = cpu_to_be32(OP_EXCHANGE_ID);
1772 xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data));
1774 encode_string(xdr, args->id_len, args->id);
1776 p = reserve_space(xdr, 12);
1777 *p++ = cpu_to_be32(args->flags);
1778 *p++ = cpu_to_be32(0); /* zero length state_protect4_a */
1779 *p = cpu_to_be32(0); /* zero length implementation id array */
1781 hdr->replen += decode_exchange_id_maxsz;
1784 static void encode_create_session(struct xdr_stream *xdr,
1785 struct nfs41_create_session_args *args,
1786 struct compound_hdr *hdr)
1789 char machine_name[NFS4_MAX_MACHINE_NAME_LEN];
1791 struct nfs_client *clp = args->client;
1792 u32 max_resp_sz_cached;
1795 * Assumes OPEN is the biggest non-idempotent compound.
1796 * 2 is the verifier.
1798 max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE +
1799 RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT;
1801 len = scnprintf(machine_name, sizeof(machine_name), "%s",
1804 p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12);
1805 *p++ = cpu_to_be32(OP_CREATE_SESSION);
1806 p = xdr_encode_hyper(p, clp->cl_clientid);
1807 *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */
1808 *p++ = cpu_to_be32(args->flags); /*flags */
1811 *p++ = cpu_to_be32(0); /* header padding size */
1812 *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */
1813 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */
1814 *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */
1815 *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */
1816 *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */
1817 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1820 *p++ = cpu_to_be32(0); /* header padding size */
1821 *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */
1822 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */
1823 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1824 *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */
1825 *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */
1826 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1828 *p++ = cpu_to_be32(args->cb_program); /* cb_program */
1829 *p++ = cpu_to_be32(1);
1830 *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */
1832 /* authsys_parms rfc1831 */
1833 *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */
1834 p = xdr_encode_opaque(p, machine_name, len);
1835 *p++ = cpu_to_be32(0); /* UID */
1836 *p++ = cpu_to_be32(0); /* GID */
1837 *p = cpu_to_be32(0); /* No more gids */
1839 hdr->replen += decode_create_session_maxsz;
1842 static void encode_destroy_session(struct xdr_stream *xdr,
1843 struct nfs4_session *session,
1844 struct compound_hdr *hdr)
1847 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN);
1848 *p++ = cpu_to_be32(OP_DESTROY_SESSION);
1849 xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1851 hdr->replen += decode_destroy_session_maxsz;
1854 static void encode_reclaim_complete(struct xdr_stream *xdr,
1855 struct nfs41_reclaim_complete_args *args,
1856 struct compound_hdr *hdr)
1860 p = reserve_space(xdr, 8);
1861 *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE);
1862 *p++ = cpu_to_be32(args->one_fs);
1864 hdr->replen += decode_reclaim_complete_maxsz;
1866 #endif /* CONFIG_NFS_V4_1 */
1868 static void encode_sequence(struct xdr_stream *xdr,
1869 const struct nfs4_sequence_args *args,
1870 struct compound_hdr *hdr)
1872 #if defined(CONFIG_NFS_V4_1)
1873 struct nfs4_session *session = args->sa_session;
1874 struct nfs4_slot_table *tp;
1875 struct nfs4_slot *slot;
1881 tp = &session->fc_slot_table;
1883 WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE);
1884 slot = tp->slots + args->sa_slotid;
1886 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16);
1887 *p++ = cpu_to_be32(OP_SEQUENCE);
1890 * Sessionid + seqid + slotid + max slotid + cache_this
1892 dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d "
1893 "max_slotid=%d cache_this=%d\n",
1895 ((u32 *)session->sess_id.data)[0],
1896 ((u32 *)session->sess_id.data)[1],
1897 ((u32 *)session->sess_id.data)[2],
1898 ((u32 *)session->sess_id.data)[3],
1899 slot->seq_nr, args->sa_slotid,
1900 tp->highest_used_slotid, args->sa_cache_this);
1901 p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1902 *p++ = cpu_to_be32(slot->seq_nr);
1903 *p++ = cpu_to_be32(args->sa_slotid);
1904 *p++ = cpu_to_be32(tp->highest_used_slotid);
1905 *p = cpu_to_be32(args->sa_cache_this);
1907 hdr->replen += decode_sequence_maxsz;
1908 #endif /* CONFIG_NFS_V4_1 */
1911 #ifdef CONFIG_NFS_V4_1
1913 encode_getdevicelist(struct xdr_stream *xdr,
1914 const struct nfs4_getdevicelist_args *args,
1915 struct compound_hdr *hdr)
1918 nfs4_verifier dummy = {
1922 p = reserve_space(xdr, 20);
1923 *p++ = cpu_to_be32(OP_GETDEVICELIST);
1924 *p++ = cpu_to_be32(args->layoutclass);
1925 *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM);
1926 xdr_encode_hyper(p, 0ULL); /* cookie */
1927 encode_nfs4_verifier(xdr, &dummy);
1929 hdr->replen += decode_getdevicelist_maxsz;
1933 encode_getdeviceinfo(struct xdr_stream *xdr,
1934 const struct nfs4_getdeviceinfo_args *args,
1935 struct compound_hdr *hdr)
1939 p = reserve_space(xdr, 16 + NFS4_DEVICEID4_SIZE);
1940 *p++ = cpu_to_be32(OP_GETDEVICEINFO);
1941 p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data,
1942 NFS4_DEVICEID4_SIZE);
1943 *p++ = cpu_to_be32(args->pdev->layout_type);
1944 *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */
1945 *p++ = cpu_to_be32(0); /* bitmap length 0 */
1947 hdr->replen += decode_getdeviceinfo_maxsz;
1951 encode_layoutget(struct xdr_stream *xdr,
1952 const struct nfs4_layoutget_args *args,
1953 struct compound_hdr *hdr)
1957 p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE);
1958 *p++ = cpu_to_be32(OP_LAYOUTGET);
1959 *p++ = cpu_to_be32(0); /* Signal layout available */
1960 *p++ = cpu_to_be32(args->type);
1961 *p++ = cpu_to_be32(args->range.iomode);
1962 p = xdr_encode_hyper(p, args->range.offset);
1963 p = xdr_encode_hyper(p, args->range.length);
1964 p = xdr_encode_hyper(p, args->minlength);
1965 p = xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE);
1966 *p = cpu_to_be32(args->maxcount);
1968 dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n",
1972 (unsigned long)args->range.offset,
1973 (unsigned long)args->range.length,
1976 hdr->replen += decode_layoutget_maxsz;
1980 encode_layoutcommit(struct xdr_stream *xdr,
1981 struct inode *inode,
1982 const struct nfs4_layoutcommit_args *args,
1983 struct compound_hdr *hdr)
1987 dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten,
1988 NFS_SERVER(args->inode)->pnfs_curr_ld->id);
1990 p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE);
1991 *p++ = cpu_to_be32(OP_LAYOUTCOMMIT);
1992 /* Only whole file layouts */
1993 p = xdr_encode_hyper(p, 0); /* offset */
1994 p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */
1995 *p++ = cpu_to_be32(0); /* reclaim */
1996 p = xdr_encode_opaque_fixed(p, args->stateid.data, NFS4_STATEID_SIZE);
1997 *p++ = cpu_to_be32(1); /* newoffset = TRUE */
1998 p = xdr_encode_hyper(p, args->lastbytewritten);
1999 *p++ = cpu_to_be32(0); /* Never send time_modify_changed */
2000 *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */
2002 if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit)
2003 NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit(
2004 NFS_I(inode)->layout, xdr, args);
2006 p = reserve_space(xdr, 4);
2007 *p = cpu_to_be32(0); /* no layout-type payload */
2011 hdr->replen += decode_layoutcommit_maxsz;
2016 encode_layoutreturn(struct xdr_stream *xdr,
2017 const struct nfs4_layoutreturn_args *args,
2018 struct compound_hdr *hdr)
2022 p = reserve_space(xdr, 20);
2023 *p++ = cpu_to_be32(OP_LAYOUTRETURN);
2024 *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */
2025 *p++ = cpu_to_be32(args->layout_type);
2026 *p++ = cpu_to_be32(IOMODE_ANY);
2027 *p = cpu_to_be32(RETURN_FILE);
2028 p = reserve_space(xdr, 16 + NFS4_STATEID_SIZE);
2029 p = xdr_encode_hyper(p, 0);
2030 p = xdr_encode_hyper(p, NFS4_MAX_UINT64);
2031 spin_lock(&args->inode->i_lock);
2032 xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE);
2033 spin_unlock(&args->inode->i_lock);
2034 if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) {
2035 NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn(
2036 NFS_I(args->inode)->layout, xdr, args);
2038 p = reserve_space(xdr, 4);
2039 *p = cpu_to_be32(0);
2042 hdr->replen += decode_layoutreturn_maxsz;
2046 encode_secinfo_no_name(struct xdr_stream *xdr,
2047 const struct nfs41_secinfo_no_name_args *args,
2048 struct compound_hdr *hdr)
2051 p = reserve_space(xdr, 8);
2052 *p++ = cpu_to_be32(OP_SECINFO_NO_NAME);
2053 *p++ = cpu_to_be32(args->style);
2055 hdr->replen += decode_secinfo_no_name_maxsz;
2059 static void encode_test_stateid(struct xdr_stream *xdr,
2060 struct nfs41_test_stateid_args *args,
2061 struct compound_hdr *hdr)
2065 p = reserve_space(xdr, 8 + NFS4_STATEID_SIZE);
2066 *p++ = cpu_to_be32(OP_TEST_STATEID);
2067 *p++ = cpu_to_be32(1);
2068 xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
2070 hdr->replen += decode_test_stateid_maxsz;
2073 static void encode_free_stateid(struct xdr_stream *xdr,
2074 struct nfs41_free_stateid_args *args,
2075 struct compound_hdr *hdr)
2078 p = reserve_space(xdr, 4 + NFS4_STATEID_SIZE);
2079 *p++ = cpu_to_be32(OP_FREE_STATEID);
2080 xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
2082 hdr->replen += decode_free_stateid_maxsz;
2084 #endif /* CONFIG_NFS_V4_1 */
2087 * END OF "GENERIC" ENCODE ROUTINES.
2090 static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
2092 #if defined(CONFIG_NFS_V4_1)
2093 if (args->sa_session)
2094 return args->sa_session->clp->cl_mvops->minor_version;
2095 #endif /* CONFIG_NFS_V4_1 */
2100 * Encode an ACCESS request
2102 static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr,
2103 const struct nfs4_accessargs *args)
2105 struct compound_hdr hdr = {
2106 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2109 encode_compound_hdr(xdr, req, &hdr);
2110 encode_sequence(xdr, &args->seq_args, &hdr);
2111 encode_putfh(xdr, args->fh, &hdr);
2112 encode_access(xdr, args->access, &hdr);
2113 encode_getfattr(xdr, args->bitmask, &hdr);
2118 * Encode LOOKUP request
2120 static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr,
2121 const struct nfs4_lookup_arg *args)
2123 struct compound_hdr hdr = {
2124 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2127 encode_compound_hdr(xdr, req, &hdr);
2128 encode_sequence(xdr, &args->seq_args, &hdr);
2129 encode_putfh(xdr, args->dir_fh, &hdr);
2130 encode_lookup(xdr, args->name, &hdr);
2131 encode_getfh(xdr, &hdr);
2132 encode_getfattr(xdr, args->bitmask, &hdr);
2137 * Encode LOOKUP_ROOT request
2139 static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req,
2140 struct xdr_stream *xdr,
2141 const struct nfs4_lookup_root_arg *args)
2143 struct compound_hdr hdr = {
2144 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2147 encode_compound_hdr(xdr, req, &hdr);
2148 encode_sequence(xdr, &args->seq_args, &hdr);
2149 encode_putrootfh(xdr, &hdr);
2150 encode_getfh(xdr, &hdr);
2151 encode_getfattr(xdr, args->bitmask, &hdr);
2156 * Encode REMOVE request
2158 static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr,
2159 const struct nfs_removeargs *args)
2161 struct compound_hdr hdr = {
2162 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2165 encode_compound_hdr(xdr, req, &hdr);
2166 encode_sequence(xdr, &args->seq_args, &hdr);
2167 encode_putfh(xdr, args->fh, &hdr);
2168 encode_remove(xdr, &args->name, &hdr);
2169 encode_getfattr(xdr, args->bitmask, &hdr);
2174 * Encode RENAME request
2176 static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr,
2177 const struct nfs_renameargs *args)
2179 struct compound_hdr hdr = {
2180 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2183 encode_compound_hdr(xdr, req, &hdr);
2184 encode_sequence(xdr, &args->seq_args, &hdr);
2185 encode_putfh(xdr, args->old_dir, &hdr);
2186 encode_savefh(xdr, &hdr);
2187 encode_putfh(xdr, args->new_dir, &hdr);
2188 encode_rename(xdr, args->old_name, args->new_name, &hdr);
2189 encode_getfattr(xdr, args->bitmask, &hdr);
2190 encode_restorefh(xdr, &hdr);
2191 encode_getfattr(xdr, args->bitmask, &hdr);
2196 * Encode LINK request
2198 static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr,
2199 const struct nfs4_link_arg *args)
2201 struct compound_hdr hdr = {
2202 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2205 encode_compound_hdr(xdr, req, &hdr);
2206 encode_sequence(xdr, &args->seq_args, &hdr);
2207 encode_putfh(xdr, args->fh, &hdr);
2208 encode_savefh(xdr, &hdr);
2209 encode_putfh(xdr, args->dir_fh, &hdr);
2210 encode_link(xdr, args->name, &hdr);
2211 encode_getfattr(xdr, args->bitmask, &hdr);
2212 encode_restorefh(xdr, &hdr);
2213 encode_getfattr(xdr, args->bitmask, &hdr);
2218 * Encode CREATE request
2220 static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr,
2221 const struct nfs4_create_arg *args)
2223 struct compound_hdr hdr = {
2224 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2227 encode_compound_hdr(xdr, req, &hdr);
2228 encode_sequence(xdr, &args->seq_args, &hdr);
2229 encode_putfh(xdr, args->dir_fh, &hdr);
2230 encode_savefh(xdr, &hdr);
2231 encode_create(xdr, args, &hdr);
2232 encode_getfh(xdr, &hdr);
2233 encode_getfattr(xdr, args->bitmask, &hdr);
2234 encode_restorefh(xdr, &hdr);
2235 encode_getfattr(xdr, args->bitmask, &hdr);
2240 * Encode SYMLINK request
2242 static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr,
2243 const struct nfs4_create_arg *args)
2245 nfs4_xdr_enc_create(req, xdr, args);
2249 * Encode GETATTR request
2251 static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr,
2252 const struct nfs4_getattr_arg *args)
2254 struct compound_hdr hdr = {
2255 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2258 encode_compound_hdr(xdr, req, &hdr);
2259 encode_sequence(xdr, &args->seq_args, &hdr);
2260 encode_putfh(xdr, args->fh, &hdr);
2261 encode_getfattr(xdr, args->bitmask, &hdr);
2266 * Encode a CLOSE request
2268 static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
2269 struct nfs_closeargs *args)
2271 struct compound_hdr hdr = {
2272 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2275 encode_compound_hdr(xdr, req, &hdr);
2276 encode_sequence(xdr, &args->seq_args, &hdr);
2277 encode_putfh(xdr, args->fh, &hdr);
2278 encode_close(xdr, args, &hdr);
2279 encode_getfattr(xdr, args->bitmask, &hdr);
2284 * Encode an OPEN request
2286 static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
2287 struct nfs_openargs *args)
2289 struct compound_hdr hdr = {
2290 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2293 encode_compound_hdr(xdr, req, &hdr);
2294 encode_sequence(xdr, &args->seq_args, &hdr);
2295 encode_putfh(xdr, args->fh, &hdr);
2296 encode_savefh(xdr, &hdr);
2297 encode_open(xdr, args, &hdr);
2298 encode_getfh(xdr, &hdr);
2299 encode_getfattr(xdr, args->bitmask, &hdr);
2300 encode_restorefh(xdr, &hdr);
2301 encode_getfattr(xdr, args->bitmask, &hdr);
2306 * Encode an OPEN_CONFIRM request
2308 static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req,
2309 struct xdr_stream *xdr,
2310 struct nfs_open_confirmargs *args)
2312 struct compound_hdr hdr = {
2316 encode_compound_hdr(xdr, req, &hdr);
2317 encode_putfh(xdr, args->fh, &hdr);
2318 encode_open_confirm(xdr, args, &hdr);
2323 * Encode an OPEN request with no attributes.
2325 static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req,
2326 struct xdr_stream *xdr,
2327 struct nfs_openargs *args)
2329 struct compound_hdr hdr = {
2330 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2333 encode_compound_hdr(xdr, req, &hdr);
2334 encode_sequence(xdr, &args->seq_args, &hdr);
2335 encode_putfh(xdr, args->fh, &hdr);
2336 encode_open(xdr, args, &hdr);
2337 encode_getfattr(xdr, args->bitmask, &hdr);
2342 * Encode an OPEN_DOWNGRADE request
2344 static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req,
2345 struct xdr_stream *xdr,
2346 struct nfs_closeargs *args)
2348 struct compound_hdr hdr = {
2349 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2352 encode_compound_hdr(xdr, req, &hdr);
2353 encode_sequence(xdr, &args->seq_args, &hdr);
2354 encode_putfh(xdr, args->fh, &hdr);
2355 encode_open_downgrade(xdr, args, &hdr);
2356 encode_getfattr(xdr, args->bitmask, &hdr);
2361 * Encode a LOCK request
2363 static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr,
2364 struct nfs_lock_args *args)
2366 struct compound_hdr hdr = {
2367 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2370 encode_compound_hdr(xdr, req, &hdr);
2371 encode_sequence(xdr, &args->seq_args, &hdr);
2372 encode_putfh(xdr, args->fh, &hdr);
2373 encode_lock(xdr, args, &hdr);
2378 * Encode a LOCKT request
2380 static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr,
2381 struct nfs_lockt_args *args)
2383 struct compound_hdr hdr = {
2384 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2387 encode_compound_hdr(xdr, req, &hdr);
2388 encode_sequence(xdr, &args->seq_args, &hdr);
2389 encode_putfh(xdr, args->fh, &hdr);
2390 encode_lockt(xdr, args, &hdr);
2395 * Encode a LOCKU request
2397 static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr,
2398 struct nfs_locku_args *args)
2400 struct compound_hdr hdr = {
2401 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2404 encode_compound_hdr(xdr, req, &hdr);
2405 encode_sequence(xdr, &args->seq_args, &hdr);
2406 encode_putfh(xdr, args->fh, &hdr);
2407 encode_locku(xdr, args, &hdr);
2411 static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req,
2412 struct xdr_stream *xdr,
2413 struct nfs_release_lockowner_args *args)
2415 struct compound_hdr hdr = {
2419 encode_compound_hdr(xdr, req, &hdr);
2420 encode_release_lockowner(xdr, &args->lock_owner, &hdr);
2425 * Encode a READLINK request
2427 static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr,
2428 const struct nfs4_readlink *args)
2430 struct compound_hdr hdr = {
2431 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2434 encode_compound_hdr(xdr, req, &hdr);
2435 encode_sequence(xdr, &args->seq_args, &hdr);
2436 encode_putfh(xdr, args->fh, &hdr);
2437 encode_readlink(xdr, args, req, &hdr);
2439 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
2440 args->pgbase, args->pglen);
2445 * Encode a READDIR request
2447 static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr,
2448 const struct nfs4_readdir_arg *args)
2450 struct compound_hdr hdr = {
2451 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2454 encode_compound_hdr(xdr, req, &hdr);
2455 encode_sequence(xdr, &args->seq_args, &hdr);
2456 encode_putfh(xdr, args->fh, &hdr);
2457 encode_readdir(xdr, args, req, &hdr);
2459 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
2460 args->pgbase, args->count);
2461 dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
2462 __func__, hdr.replen << 2, args->pages,
2463 args->pgbase, args->count);
2468 * Encode a READ request
2470 static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr,
2471 struct nfs_readargs *args)
2473 struct compound_hdr hdr = {
2474 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2477 encode_compound_hdr(xdr, req, &hdr);
2478 encode_sequence(xdr, &args->seq_args, &hdr);
2479 encode_putfh(xdr, args->fh, &hdr);
2480 encode_read(xdr, args, &hdr);
2482 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
2483 args->pages, args->pgbase, args->count);
2484 req->rq_rcv_buf.flags |= XDRBUF_READ;
2489 * Encode an SETATTR request
2491 static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr,
2492 struct nfs_setattrargs *args)
2494 struct compound_hdr hdr = {
2495 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2498 encode_compound_hdr(xdr, req, &hdr);
2499 encode_sequence(xdr, &args->seq_args, &hdr);
2500 encode_putfh(xdr, args->fh, &hdr);
2501 encode_setattr(xdr, args, args->server, &hdr);
2502 encode_getfattr(xdr, args->bitmask, &hdr);
2507 * Encode a GETACL request
2509 static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
2510 struct nfs_getaclargs *args)
2512 struct compound_hdr hdr = {
2513 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2517 encode_compound_hdr(xdr, req, &hdr);
2518 encode_sequence(xdr, &args->seq_args, &hdr);
2519 encode_putfh(xdr, args->fh, &hdr);
2520 replen = hdr.replen + op_decode_hdr_maxsz + 1;
2521 encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr);
2523 xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
2524 args->acl_pages, args->acl_pgbase, args->acl_len);
2530 * Encode a WRITE request
2532 static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr,
2533 struct nfs_writeargs *args)
2535 struct compound_hdr hdr = {
2536 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2539 encode_compound_hdr(xdr, req, &hdr);
2540 encode_sequence(xdr, &args->seq_args, &hdr);
2541 encode_putfh(xdr, args->fh, &hdr);
2542 encode_write(xdr, args, &hdr);
2543 req->rq_snd_buf.flags |= XDRBUF_WRITE;
2545 encode_getfattr(xdr, args->bitmask, &hdr);
2552 static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
2553 struct nfs_writeargs *args)
2555 struct compound_hdr hdr = {
2556 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2559 encode_compound_hdr(xdr, req, &hdr);
2560 encode_sequence(xdr, &args->seq_args, &hdr);
2561 encode_putfh(xdr, args->fh, &hdr);
2562 encode_commit(xdr, args, &hdr);
2564 encode_getfattr(xdr, args->bitmask, &hdr);
2571 static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
2572 struct nfs4_fsinfo_arg *args)
2574 struct compound_hdr hdr = {
2575 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2578 encode_compound_hdr(xdr, req, &hdr);
2579 encode_sequence(xdr, &args->seq_args, &hdr);
2580 encode_putfh(xdr, args->fh, &hdr);
2581 encode_fsinfo(xdr, args->bitmask, &hdr);
2586 * a PATHCONF request
2588 static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
2589 const struct nfs4_pathconf_arg *args)
2591 struct compound_hdr hdr = {
2592 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2595 encode_compound_hdr(xdr, req, &hdr);
2596 encode_sequence(xdr, &args->seq_args, &hdr);
2597 encode_putfh(xdr, args->fh, &hdr);
2598 encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0],
2606 static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
2607 const struct nfs4_statfs_arg *args)
2609 struct compound_hdr hdr = {
2610 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2613 encode_compound_hdr(xdr, req, &hdr);
2614 encode_sequence(xdr, &args->seq_args, &hdr);
2615 encode_putfh(xdr, args->fh, &hdr);
2616 encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0],
2617 args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr);
2622 * GETATTR_BITMAP request
2624 static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
2625 struct xdr_stream *xdr,
2626 struct nfs4_server_caps_arg *args)
2628 struct compound_hdr hdr = {
2629 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2632 encode_compound_hdr(xdr, req, &hdr);
2633 encode_sequence(xdr, &args->seq_args, &hdr);
2634 encode_putfh(xdr, args->fhandle, &hdr);
2635 encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
2636 FATTR4_WORD0_LINK_SUPPORT|
2637 FATTR4_WORD0_SYMLINK_SUPPORT|
2638 FATTR4_WORD0_ACLSUPPORT, &hdr);
2645 static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
2646 struct nfs_client *clp)
2648 struct compound_hdr hdr = {
2652 encode_compound_hdr(xdr, req, &hdr);
2653 encode_renew(xdr, clp, &hdr);
2658 * a SETCLIENTID request
2660 static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req,
2661 struct xdr_stream *xdr,
2662 struct nfs4_setclientid *sc)
2664 struct compound_hdr hdr = {
2668 encode_compound_hdr(xdr, req, &hdr);
2669 encode_setclientid(xdr, sc, &hdr);
2674 * a SETCLIENTID_CONFIRM request
2676 static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req,
2677 struct xdr_stream *xdr,
2678 struct nfs4_setclientid_res *arg)
2680 struct compound_hdr hdr = {
2683 const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME };
2685 encode_compound_hdr(xdr, req, &hdr);
2686 encode_setclientid_confirm(xdr, arg, &hdr);
2687 encode_putrootfh(xdr, &hdr);
2688 encode_fsinfo(xdr, lease_bitmap, &hdr);
2693 * DELEGRETURN request
2695 static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
2696 struct xdr_stream *xdr,
2697 const struct nfs4_delegreturnargs *args)
2699 struct compound_hdr hdr = {
2700 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2703 encode_compound_hdr(xdr, req, &hdr);
2704 encode_sequence(xdr, &args->seq_args, &hdr);
2705 encode_putfh(xdr, args->fhandle, &hdr);
2706 encode_delegreturn(xdr, args->stateid, &hdr);
2707 encode_getfattr(xdr, args->bitmask, &hdr);
2712 * Encode FS_LOCATIONS request
2714 static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
2715 struct xdr_stream *xdr,
2716 struct nfs4_fs_locations_arg *args)
2718 struct compound_hdr hdr = {
2719 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2723 encode_compound_hdr(xdr, req, &hdr);
2724 encode_sequence(xdr, &args->seq_args, &hdr);
2725 encode_putfh(xdr, args->dir_fh, &hdr);
2726 encode_lookup(xdr, args->name, &hdr);
2727 replen = hdr.replen; /* get the attribute into args->page */
2728 encode_fs_locations(xdr, args->bitmask, &hdr);
2730 xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
2736 * Encode SECINFO request
2738 static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
2739 struct xdr_stream *xdr,
2740 struct nfs4_secinfo_arg *args)
2742 struct compound_hdr hdr = {
2743 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2746 encode_compound_hdr(xdr, req, &hdr);
2747 encode_sequence(xdr, &args->seq_args, &hdr);
2748 encode_putfh(xdr, args->dir_fh, &hdr);
2749 encode_secinfo(xdr, args->name, &hdr);
2753 #if defined(CONFIG_NFS_V4_1)
2755 * EXCHANGE_ID request
2757 static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req,
2758 struct xdr_stream *xdr,
2759 struct nfs41_exchange_id_args *args)
2761 struct compound_hdr hdr = {
2762 .minorversion = args->client->cl_mvops->minor_version,
2765 encode_compound_hdr(xdr, req, &hdr);
2766 encode_exchange_id(xdr, args, &hdr);
2771 * a CREATE_SESSION request
2773 static void nfs4_xdr_enc_create_session(struct rpc_rqst *req,
2774 struct xdr_stream *xdr,
2775 struct nfs41_create_session_args *args)
2777 struct compound_hdr hdr = {
2778 .minorversion = args->client->cl_mvops->minor_version,
2781 encode_compound_hdr(xdr, req, &hdr);
2782 encode_create_session(xdr, args, &hdr);
2787 * a DESTROY_SESSION request
2789 static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req,
2790 struct xdr_stream *xdr,
2791 struct nfs4_session *session)
2793 struct compound_hdr hdr = {
2794 .minorversion = session->clp->cl_mvops->minor_version,
2797 encode_compound_hdr(xdr, req, &hdr);
2798 encode_destroy_session(xdr, session, &hdr);
2803 * a SEQUENCE request
2805 static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr,
2806 struct nfs4_sequence_args *args)
2808 struct compound_hdr hdr = {
2809 .minorversion = nfs4_xdr_minorversion(args),
2812 encode_compound_hdr(xdr, req, &hdr);
2813 encode_sequence(xdr, args, &hdr);
2818 * a GET_LEASE_TIME request
2820 static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req,
2821 struct xdr_stream *xdr,
2822 struct nfs4_get_lease_time_args *args)
2824 struct compound_hdr hdr = {
2825 .minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
2827 const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME };
2829 encode_compound_hdr(xdr, req, &hdr);
2830 encode_sequence(xdr, &args->la_seq_args, &hdr);
2831 encode_putrootfh(xdr, &hdr);
2832 encode_fsinfo(xdr, lease_bitmap, &hdr);
2837 * a RECLAIM_COMPLETE request
2839 static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req,
2840 struct xdr_stream *xdr,
2841 struct nfs41_reclaim_complete_args *args)
2843 struct compound_hdr hdr = {
2844 .minorversion = nfs4_xdr_minorversion(&args->seq_args)
2847 encode_compound_hdr(xdr, req, &hdr);
2848 encode_sequence(xdr, &args->seq_args, &hdr);
2849 encode_reclaim_complete(xdr, args, &hdr);
2854 * Encode GETDEVICELIST request
2856 static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req,
2857 struct xdr_stream *xdr,
2858 struct nfs4_getdevicelist_args *args)
2860 struct compound_hdr hdr = {
2861 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2864 encode_compound_hdr(xdr, req, &hdr);
2865 encode_sequence(xdr, &args->seq_args, &hdr);
2866 encode_putfh(xdr, args->fh, &hdr);
2867 encode_getdevicelist(xdr, args, &hdr);
2872 * Encode GETDEVICEINFO request
2874 static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req,
2875 struct xdr_stream *xdr,
2876 struct nfs4_getdeviceinfo_args *args)
2878 struct compound_hdr hdr = {
2879 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2882 encode_compound_hdr(xdr, req, &hdr);
2883 encode_sequence(xdr, &args->seq_args, &hdr);
2884 encode_getdeviceinfo(xdr, args, &hdr);
2886 /* set up reply kvec. Subtract notification bitmap max size (2)
2887 * so that notification bitmap is put in xdr_buf tail */
2888 xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2,
2889 args->pdev->pages, args->pdev->pgbase,
2896 * Encode LAYOUTGET request
2898 static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
2899 struct xdr_stream *xdr,
2900 struct nfs4_layoutget_args *args)
2902 struct compound_hdr hdr = {
2903 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2906 encode_compound_hdr(xdr, req, &hdr);
2907 encode_sequence(xdr, &args->seq_args, &hdr);
2908 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2909 encode_layoutget(xdr, args, &hdr);
2911 xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
2912 args->layout.pages, 0, args->layout.pglen);
2918 * Encode LAYOUTCOMMIT request
2920 static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req,
2921 struct xdr_stream *xdr,
2922 struct nfs4_layoutcommit_args *args)
2924 struct nfs4_layoutcommit_data *data =
2925 container_of(args, struct nfs4_layoutcommit_data, args);
2926 struct compound_hdr hdr = {
2927 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2930 encode_compound_hdr(xdr, req, &hdr);
2931 encode_sequence(xdr, &args->seq_args, &hdr);
2932 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2933 encode_layoutcommit(xdr, data->args.inode, args, &hdr);
2934 encode_getfattr(xdr, args->bitmask, &hdr);
2939 * Encode LAYOUTRETURN request
2941 static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req,
2942 struct xdr_stream *xdr,
2943 struct nfs4_layoutreturn_args *args)
2945 struct compound_hdr hdr = {
2946 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2949 encode_compound_hdr(xdr, req, &hdr);
2950 encode_sequence(xdr, &args->seq_args, &hdr);
2951 encode_putfh(xdr, NFS_FH(args->inode), &hdr);
2952 encode_layoutreturn(xdr, args, &hdr);
2957 * Encode SECINFO_NO_NAME request
2959 static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
2960 struct xdr_stream *xdr,
2961 struct nfs41_secinfo_no_name_args *args)
2963 struct compound_hdr hdr = {
2964 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2967 encode_compound_hdr(xdr, req, &hdr);
2968 encode_sequence(xdr, &args->seq_args, &hdr);
2969 encode_putrootfh(xdr, &hdr);
2970 encode_secinfo_no_name(xdr, args, &hdr);
2976 * Encode TEST_STATEID request
2978 static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req,
2979 struct xdr_stream *xdr,
2980 struct nfs41_test_stateid_args *args)
2982 struct compound_hdr hdr = {
2983 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
2986 encode_compound_hdr(xdr, req, &hdr);
2987 encode_sequence(xdr, &args->seq_args, &hdr);
2988 encode_test_stateid(xdr, args, &hdr);
2993 * Encode FREE_STATEID request
2995 static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req,
2996 struct xdr_stream *xdr,
2997 struct nfs41_free_stateid_args *args)
2999 struct compound_hdr hdr = {
3000 .minorversion = nfs4_xdr_minorversion(&args->seq_args),
3003 encode_compound_hdr(xdr, req, &hdr);
3004 encode_sequence(xdr, &args->seq_args, &hdr);
3005 encode_free_stateid(xdr, args, &hdr);
3008 #endif /* CONFIG_NFS_V4_1 */
3010 static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
3012 dprintk("nfs: %s: prematurely hit end of receive buffer. "
3013 "Remaining buffer length is %tu words.\n",
3014 func, xdr->end - xdr->p);
3017 static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
3021 p = xdr_inline_decode(xdr, 4);
3024 *len = be32_to_cpup(p);
3025 p = xdr_inline_decode(xdr, *len);
3028 *string = (char *)p;
3031 print_overflow_msg(__func__, xdr);
3035 static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
3039 p = xdr_inline_decode(xdr, 8);
3042 hdr->status = be32_to_cpup(p++);
3043 hdr->taglen = be32_to_cpup(p);
3045 p = xdr_inline_decode(xdr, hdr->taglen + 4);
3048 hdr->tag = (char *)p;
3049 p += XDR_QUADLEN(hdr->taglen);
3050 hdr->nops = be32_to_cpup(p);
3051 if (unlikely(hdr->nops < 1))
3052 return nfs4_stat_to_errno(hdr->status);
3055 print_overflow_msg(__func__, xdr);
3059 static bool __decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected,
3066 p = xdr_inline_decode(xdr, 8);
3069 opnum = be32_to_cpup(p++);
3070 if (unlikely(opnum != expected))
3071 goto out_bad_operation;
3072 nfserr = be32_to_cpup(p);
3073 if (nfserr == NFS_OK)
3076 *nfs_retval = nfs4_stat_to_errno(nfserr);
3079 dprintk("nfs: Server returned operation"
3080 " %d but we issued a request for %d\n",
3082 *nfs_retval = -EREMOTEIO;
3085 print_overflow_msg(__func__, xdr);
3090 static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
3094 __decode_op_hdr(xdr, expected, &retval);
3099 static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp)
3102 unsigned int strlen;
3105 p = xdr_inline_decode(xdr, 12);
3107 return decode_opaque_inline(xdr, &strlen, &str);
3108 print_overflow_msg(__func__, xdr);
3112 static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
3117 p = xdr_inline_decode(xdr, 4);
3120 bmlen = be32_to_cpup(p);
3122 bitmap[0] = bitmap[1] = bitmap[2] = 0;
3123 p = xdr_inline_decode(xdr, (bmlen << 2));
3127 bitmap[0] = be32_to_cpup(p++);
3129 bitmap[1] = be32_to_cpup(p++);
3131 bitmap[2] = be32_to_cpup(p);
3136 print_overflow_msg(__func__, xdr);
3140 static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep)
3144 p = xdr_inline_decode(xdr, 4);
3147 *attrlen = be32_to_cpup(p);
3151 print_overflow_msg(__func__, xdr);
3155 static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
3157 if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
3159 ret = decode_attr_bitmap(xdr, bitmask);
3160 if (unlikely(ret < 0))
3162 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
3164 bitmask[0] = bitmask[1] = bitmask[2] = 0;
3165 dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__,
3166 bitmask[0], bitmask[1], bitmask[2]);
3170 static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type)
3176 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
3178 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
3179 p = xdr_inline_decode(xdr, 4);
3182 *type = be32_to_cpup(p);
3183 if (*type < NF4REG || *type > NF4NAMEDATTR) {
3184 dprintk("%s: bad type %d\n", __func__, *type);
3187 bitmap[0] &= ~FATTR4_WORD0_TYPE;
3188 ret = NFS_ATTR_FATTR_TYPE;
3190 dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]);
3193 print_overflow_msg(__func__, xdr);
3197 static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
3203 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
3205 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
3206 p = xdr_inline_decode(xdr, 8);
3209 xdr_decode_hyper(p, change);
3210 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
3211 ret = NFS_ATTR_FATTR_CHANGE;
3213 dprintk("%s: change attribute=%Lu\n", __func__,
3214 (unsigned long long)*change);
3217 print_overflow_msg(__func__, xdr);
3221 static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
3227 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
3229 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
3230 p = xdr_inline_decode(xdr, 8);
3233 xdr_decode_hyper(p, size);
3234 bitmap[0] &= ~FATTR4_WORD0_SIZE;
3235 ret = NFS_ATTR_FATTR_SIZE;
3237 dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size);
3240 print_overflow_msg(__func__, xdr);
3244 static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3249 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
3251 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
3252 p = xdr_inline_decode(xdr, 4);
3255 *res = be32_to_cpup(p);
3256 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
3258 dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true");
3261 print_overflow_msg(__func__, xdr);
3265 static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3270 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
3272 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
3273 p = xdr_inline_decode(xdr, 4);
3276 *res = be32_to_cpup(p);
3277 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
3279 dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true");
3282 print_overflow_msg(__func__, xdr);
3286 static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid)
3293 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
3295 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
3296 p = xdr_inline_decode(xdr, 16);
3299 p = xdr_decode_hyper(p, &fsid->major);
3300 xdr_decode_hyper(p, &fsid->minor);
3301 bitmap[0] &= ~FATTR4_WORD0_FSID;
3302 ret = NFS_ATTR_FATTR_FSID;
3304 dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__,
3305 (unsigned long long)fsid->major,
3306 (unsigned long long)fsid->minor);
3309 print_overflow_msg(__func__, xdr);
3313 static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3318 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
3320 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
3321 p = xdr_inline_decode(xdr, 4);
3324 *res = be32_to_cpup(p);
3325 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
3327 dprintk("%s: file size=%u\n", __func__, (unsigned int)*res);
3330 print_overflow_msg(__func__, xdr);
3334 static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res)
3338 if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U)))
3340 if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) {
3341 p = xdr_inline_decode(xdr, 4);
3344 bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR;
3345 *res = -be32_to_cpup(p);
3349 print_overflow_msg(__func__, xdr);
3353 static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh)
3359 memset(fh, 0, sizeof(*fh));
3361 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U)))
3363 if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) {
3364 p = xdr_inline_decode(xdr, 4);
3367 len = be32_to_cpup(p);
3368 if (len > NFS4_FHSIZE)
3370 p = xdr_inline_decode(xdr, len);
3374 memcpy(fh->data, p, len);
3377 bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE;
3381 print_overflow_msg(__func__, xdr);
3385 static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
3389 *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL;
3390 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
3392 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
3393 p = xdr_inline_decode(xdr, 4);
3396 *res = be32_to_cpup(p);
3397 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
3399 dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res);
3402 print_overflow_msg(__func__, xdr);
3406 static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3412 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
3414 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
3415 p = xdr_inline_decode(xdr, 8);
3418 xdr_decode_hyper(p, fileid);
3419 bitmap[0] &= ~FATTR4_WORD0_FILEID;
3420 ret = NFS_ATTR_FATTR_FILEID;
3422 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
3425 print_overflow_msg(__func__, xdr);
3429 static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
3435 if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U)))
3437 if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) {
3438 p = xdr_inline_decode(xdr, 8);
3441 xdr_decode_hyper(p, fileid);
3442 bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
3443 ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID;
3445 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
3448 print_overflow_msg(__func__, xdr);
3452 static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3458 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
3460 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
3461 p = xdr_inline_decode(xdr, 8);
3464 xdr_decode_hyper(p, res);
3465 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
3467 dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res);
3470 print_overflow_msg(__func__, xdr);
3474 static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3480 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
3482 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
3483 p = xdr_inline_decode(xdr, 8);
3486 xdr_decode_hyper(p, res);
3487 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
3489 dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res);
3492 print_overflow_msg(__func__, xdr);
3496 static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
3502 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
3504 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
3505 p = xdr_inline_decode(xdr, 8);
3508 xdr_decode_hyper(p, res);
3509 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
3511 dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res);
3514 print_overflow_msg(__func__, xdr);
3518 static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
3524 p = xdr_inline_decode(xdr, 4);
3527 n = be32_to_cpup(p);
3531 path->ncomponents = 0;
3532 while (path->ncomponents < n) {
3533 struct nfs4_string *component = &path->components[path->ncomponents];
3534 status = decode_opaque_inline(xdr, &component->len, &component->data);
3535 if (unlikely(status != 0))
3537 if (path->ncomponents != n)
3539 dprintk("%s", component->data);
3540 if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS)
3541 path->ncomponents++;
3543 dprintk("cannot parse %d components in path\n", n);
3551 /* a root pathname is sent as a zero component4 */
3552 path->ncomponents = 1;
3553 path->components[0].len=0;
3554 path->components[0].data=NULL;
3555 dprintk("path /\n");
3558 dprintk(" status %d", status);
3562 print_overflow_msg(__func__, xdr);
3566 static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
3572 if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U)))
3575 if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS)))
3577 dprintk("%s: fsroot ", __func__);
3578 status = decode_pathname(xdr, &res->fs_path);
3579 if (unlikely(status != 0))
3581 p = xdr_inline_decode(xdr, 4);
3584 n = be32_to_cpup(p);
3587 res->nlocations = 0;
3588 while (res->nlocations < n) {
3590 struct nfs4_fs_location *loc = &res->locations[res->nlocations];
3592 p = xdr_inline_decode(xdr, 4);
3595 m = be32_to_cpup(p);
3598 dprintk("%s: servers ", __func__);
3599 while (loc->nservers < m) {
3600 struct nfs4_string *server = &loc->servers[loc->nservers];
3601 status = decode_opaque_inline(xdr, &server->len, &server->data);
3602 if (unlikely(status != 0))
3604 dprintk("%s ", server->data);
3605 if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS)
3609 dprintk("%s: using first %u of %u servers "
3610 "returned for location %u\n",
3612 NFS4_FS_LOCATION_MAXSERVERS,
3613 m, res->nlocations);
3614 for (i = loc->nservers; i < m;&n