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1da177e4 LT |
1 | /* |
2 | * fs/nfs/nfs4xdr.c | |
3 | * | |
4 | * Client-side XDR for NFSv4. | |
5 | * | |
6 | * Copyright (c) 2002 The Regents of the University of Michigan. | |
7 | * All rights reserved. | |
8 | * | |
9 | * Kendrick Smith <kmsmith@umich.edu> | |
10 | * Andy Adamson <andros@umich.edu> | |
6c0195a4 | 11 | * |
1da177e4 LT |
12 | * Redistribution and use in source and binary forms, with or without |
13 | * modification, are permitted provided that the following conditions | |
14 | * are met: | |
15 | * | |
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. | |
24 | * | |
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. | |
36 | */ | |
37 | ||
38 | #include <linux/param.h> | |
39 | #include <linux/time.h> | |
40 | #include <linux/mm.h> | |
41 | #include <linux/slab.h> | |
42 | #include <linux/utsname.h> | |
43 | #include <linux/errno.h> | |
44 | #include <linux/string.h> | |
45 | #include <linux/in.h> | |
46 | #include <linux/pagemap.h> | |
47 | #include <linux/proc_fs.h> | |
48 | #include <linux/kdev_t.h> | |
49 | #include <linux/sunrpc/clnt.h> | |
50 | #include <linux/nfs.h> | |
51 | #include <linux/nfs4.h> | |
52 | #include <linux/nfs_fs.h> | |
53 | #include <linux/nfs_idmap.h> | |
4ce79717 | 54 | #include "nfs4_fs.h" |
1da177e4 LT |
55 | |
56 | #define NFSDBG_FACILITY NFSDBG_XDR | |
57 | ||
58 | /* Mapping from NFS error code to "errno" error code. */ | |
59 | #define errno_NFSERR_IO EIO | |
60 | ||
0a8ea437 | 61 | static int nfs4_stat_to_errno(int); |
1da177e4 LT |
62 | |
63 | /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ | |
64 | #ifdef DEBUG | |
65 | #define NFS4_MAXTAGLEN 20 | |
66 | #else | |
67 | #define NFS4_MAXTAGLEN 0 | |
68 | #endif | |
69 | ||
6c0195a4 | 70 | /* lock,open owner id: |
9f958ab8 | 71 | * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) |
1da177e4 | 72 | */ |
9f958ab8 TM |
73 | #define open_owner_id_maxsz (1 + 4) |
74 | #define lock_owner_id_maxsz (1 + 4) | |
9104a55d | 75 | #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
1da177e4 LT |
76 | #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) |
77 | #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) | |
78 | #define op_encode_hdr_maxsz (1) | |
79 | #define op_decode_hdr_maxsz (2) | |
9104a55d TM |
80 | #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) |
81 | #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
82 | #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
83 | #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1da177e4 LT |
84 | #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ |
85 | (NFS4_FHSIZE >> 2)) | |
86 | #define decode_putfh_maxsz (op_decode_hdr_maxsz) | |
87 | #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) | |
88 | #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) | |
89 | #define encode_getfh_maxsz (op_encode_hdr_maxsz) | |
90 | #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ | |
91 | ((3+NFS4_FHSIZE) >> 2)) | |
96928206 BF |
92 | #define nfs4_fattr_bitmap_maxsz 3 |
93 | #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) | |
1da177e4 LT |
94 | #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) |
95 | #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) | |
bd625ba8 TM |
96 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
97 | #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
96928206 BF |
98 | /* This is based on getfattr, which uses the most attributes: */ |
99 | #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ | |
bd625ba8 | 100 | 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) |
96928206 BF |
101 | #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ |
102 | nfs4_fattr_value_maxsz) | |
103 | #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) | |
9104a55d TM |
104 | #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ |
105 | 1 + 2 + 1 + \ | |
106 | nfs4_owner_maxsz + \ | |
107 | nfs4_group_maxsz + \ | |
108 | 4 + 4) | |
1da177e4 LT |
109 | #define encode_savefh_maxsz (op_encode_hdr_maxsz) |
110 | #define decode_savefh_maxsz (op_decode_hdr_maxsz) | |
56ae19f3 TM |
111 | #define encode_restorefh_maxsz (op_encode_hdr_maxsz) |
112 | #define decode_restorefh_maxsz (op_decode_hdr_maxsz) | |
2f42b5d0 | 113 | #define encode_fsinfo_maxsz (encode_getattr_maxsz) |
1da177e4 LT |
114 | #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) |
115 | #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) | |
116 | #define decode_renew_maxsz (op_decode_hdr_maxsz) | |
117 | #define encode_setclientid_maxsz \ | |
118 | (op_encode_hdr_maxsz + \ | |
cc38bac3 CL |
119 | XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ |
120 | XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ | |
121 | 1 /* sc_prog */ + \ | |
122 | XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ | |
123 | XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ | |
124 | 1) /* sc_cb_ident */ | |
1da177e4 LT |
125 | #define decode_setclientid_maxsz \ |
126 | (op_decode_hdr_maxsz + \ | |
127 | 2 + \ | |
128 | 1024) /* large value for CLID_INUSE */ | |
129 | #define encode_setclientid_confirm_maxsz \ | |
130 | (op_encode_hdr_maxsz + \ | |
131 | 3 + (NFS4_VERIFIER_SIZE >> 2)) | |
132 | #define decode_setclientid_confirm_maxsz \ | |
133 | (op_decode_hdr_maxsz) | |
e6889620 TM |
134 | #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) |
135 | #define decode_lookup_maxsz (op_decode_hdr_maxsz) | |
2cebf828 TM |
136 | #define encode_share_access_maxsz \ |
137 | (2) | |
9104a55d | 138 | #define encode_createmode_maxsz (1 + encode_attrs_maxsz) |
2cebf828 TM |
139 | #define encode_opentype_maxsz (1 + encode_createmode_maxsz) |
140 | #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) | |
141 | #define encode_open_maxsz (op_encode_hdr_maxsz + \ | |
142 | 2 + encode_share_access_maxsz + 2 + \ | |
143 | open_owner_id_maxsz + \ | |
144 | encode_opentype_maxsz + \ | |
145 | encode_claim_null_maxsz) | |
146 | #define decode_ace_maxsz (3 + nfs4_owner_maxsz) | |
9104a55d | 147 | #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ |
2cebf828 TM |
148 | decode_ace_maxsz) |
149 | #define decode_change_info_maxsz (5) | |
150 | #define decode_open_maxsz (op_decode_hdr_maxsz + \ | |
9104a55d | 151 | decode_stateid_maxsz + \ |
2cebf828 TM |
152 | decode_change_info_maxsz + 1 + \ |
153 | nfs4_fattr_bitmap_maxsz + \ | |
154 | decode_delegation_maxsz) | |
9104a55d TM |
155 | #define encode_open_confirm_maxsz \ |
156 | (op_encode_hdr_maxsz + \ | |
157 | encode_stateid_maxsz + 1) | |
158 | #define decode_open_confirm_maxsz \ | |
159 | (op_decode_hdr_maxsz + \ | |
160 | decode_stateid_maxsz) | |
161 | #define encode_open_downgrade_maxsz \ | |
162 | (op_encode_hdr_maxsz + \ | |
163 | encode_stateid_maxsz + 1 + \ | |
164 | encode_share_access_maxsz) | |
165 | #define decode_open_downgrade_maxsz \ | |
166 | (op_decode_hdr_maxsz + \ | |
167 | decode_stateid_maxsz) | |
168 | #define encode_close_maxsz (op_encode_hdr_maxsz + \ | |
169 | 1 + encode_stateid_maxsz) | |
170 | #define decode_close_maxsz (op_decode_hdr_maxsz + \ | |
171 | decode_stateid_maxsz) | |
172 | #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ | |
173 | encode_stateid_maxsz + \ | |
174 | encode_attrs_maxsz) | |
175 | #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ | |
176 | nfs4_fattr_bitmap_maxsz) | |
177 | #define encode_read_maxsz (op_encode_hdr_maxsz + \ | |
178 | encode_stateid_maxsz + 3) | |
179 | #define decode_read_maxsz (op_decode_hdr_maxsz + 2) | |
180 | #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ | |
181 | 2 + encode_verifier_maxsz + 5) | |
182 | #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ | |
183 | decode_verifier_maxsz) | |
184 | #define encode_readlink_maxsz (op_encode_hdr_maxsz) | |
185 | #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) | |
186 | #define encode_write_maxsz (op_encode_hdr_maxsz + \ | |
187 | encode_stateid_maxsz + 4) | |
188 | #define decode_write_maxsz (op_decode_hdr_maxsz + \ | |
189 | 2 + decode_verifier_maxsz) | |
190 | #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) | |
191 | #define decode_commit_maxsz (op_decode_hdr_maxsz + \ | |
192 | decode_verifier_maxsz) | |
1da177e4 LT |
193 | #define encode_remove_maxsz (op_encode_hdr_maxsz + \ |
194 | nfs4_name_maxsz) | |
6ce18391 BH |
195 | #define decode_remove_maxsz (op_decode_hdr_maxsz + \ |
196 | decode_change_info_maxsz) | |
1da177e4 LT |
197 | #define encode_rename_maxsz (op_encode_hdr_maxsz + \ |
198 | 2 * nfs4_name_maxsz) | |
6ce18391 BH |
199 | #define decode_rename_maxsz (op_decode_hdr_maxsz + \ |
200 | decode_change_info_maxsz + \ | |
201 | decode_change_info_maxsz) | |
1da177e4 LT |
202 | #define encode_link_maxsz (op_encode_hdr_maxsz + \ |
203 | nfs4_name_maxsz) | |
6ce18391 | 204 | #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) |
9104a55d TM |
205 | #define encode_lock_maxsz (op_encode_hdr_maxsz + \ |
206 | 7 + \ | |
207 | 1 + encode_stateid_maxsz + 8) | |
208 | #define decode_lock_denied_maxsz \ | |
209 | (8 + decode_lockowner_maxsz) | |
210 | #define decode_lock_maxsz (op_decode_hdr_maxsz + \ | |
211 | decode_lock_denied_maxsz) | |
212 | #define encode_lockt_maxsz (op_encode_hdr_maxsz + 12) | |
213 | #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ | |
214 | decode_lock_denied_maxsz) | |
215 | #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ | |
216 | encode_stateid_maxsz + \ | |
217 | 4) | |
218 | #define decode_locku_maxsz (op_decode_hdr_maxsz + \ | |
219 | decode_stateid_maxsz) | |
220 | #define encode_access_maxsz (op_encode_hdr_maxsz + 1) | |
221 | #define decode_access_maxsz (op_decode_hdr_maxsz + 2) | |
1da177e4 LT |
222 | #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ |
223 | 1 + nfs4_name_maxsz + \ | |
94a6d753 | 224 | 1 + \ |
96928206 | 225 | nfs4_fattr_maxsz) |
1da177e4 LT |
226 | #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) |
227 | #define encode_create_maxsz (op_encode_hdr_maxsz + \ | |
9104a55d TM |
228 | 1 + 2 + nfs4_name_maxsz + \ |
229 | encode_attrs_maxsz) | |
2cebf828 TM |
230 | #define decode_create_maxsz (op_decode_hdr_maxsz + \ |
231 | decode_change_info_maxsz + \ | |
232 | nfs4_fattr_bitmap_maxsz) | |
9104a55d TM |
233 | #define encode_statfs_maxsz (encode_getattr_maxsz) |
234 | #define decode_statfs_maxsz (decode_getattr_maxsz) | |
1da177e4 LT |
235 | #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) |
236 | #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) | |
9104a55d TM |
237 | #define encode_getacl_maxsz (encode_getattr_maxsz) |
238 | #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ | |
239 | nfs4_fattr_bitmap_maxsz + 1) | |
240 | #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ | |
241 | encode_stateid_maxsz + 3) | |
242 | #define decode_setacl_maxsz (decode_setattr_maxsz) | |
e6889620 TM |
243 | #define encode_fs_locations_maxsz \ |
244 | (encode_getattr_maxsz) | |
245 | #define decode_fs_locations_maxsz \ | |
246 | (0) | |
9b7b9fcc AA |
247 | |
248 | #if defined(CONFIG_NFS_V4_1) | |
fc931582 AA |
249 | #define NFS4_MAX_MACHINE_NAME_LEN (64) |
250 | ||
99fe60d0 BH |
251 | #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ |
252 | encode_verifier_maxsz + \ | |
253 | 1 /* co_ownerid.len */ + \ | |
254 | XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ | |
255 | 1 /* flags */ + \ | |
256 | 1 /* spa_how */ + \ | |
257 | 0 /* SP4_NONE (for now) */ + \ | |
258 | 1 /* zero implemetation id array */) | |
259 | #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ | |
260 | 2 /* eir_clientid */ + \ | |
261 | 1 /* eir_sequenceid */ + \ | |
262 | 1 /* eir_flags */ + \ | |
263 | 1 /* spr_how */ + \ | |
264 | 0 /* SP4_NONE (for now) */ + \ | |
265 | 2 /* eir_server_owner.so_minor_id */ + \ | |
266 | /* eir_server_owner.so_major_id<> */ \ | |
267 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ | |
268 | /* eir_server_scope<> */ \ | |
269 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ | |
270 | 1 /* eir_server_impl_id array length */ + \ | |
271 | 0 /* ignored eir_server_impl_id contents */) | |
fc931582 AA |
272 | #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) |
273 | #define decode_channel_attrs_maxsz (6 + \ | |
274 | 1 /* ca_rdma_ird.len */ + \ | |
275 | 1 /* ca_rdma_ird */) | |
276 | #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ | |
277 | 2 /* csa_clientid */ + \ | |
278 | 1 /* csa_sequence */ + \ | |
279 | 1 /* csa_flags */ + \ | |
280 | encode_channel_attrs_maxsz + \ | |
281 | encode_channel_attrs_maxsz + \ | |
282 | 1 /* csa_cb_program */ + \ | |
283 | 1 /* csa_sec_parms.len (1) */ + \ | |
284 | 1 /* cb_secflavor (AUTH_SYS) */ + \ | |
285 | 1 /* stamp */ + \ | |
286 | 1 /* machinename.len */ + \ | |
287 | XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ | |
288 | 1 /* uid */ + \ | |
289 | 1 /* gid */ + \ | |
290 | 1 /* gids.len (0) */) | |
291 | #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ | |
292 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ | |
293 | 1 /* csr_sequence */ + \ | |
294 | 1 /* csr_flags */ + \ | |
295 | decode_channel_attrs_maxsz + \ | |
296 | decode_channel_attrs_maxsz) | |
0f3e66c6 AA |
297 | #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) |
298 | #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) | |
fc01cea9 AA |
299 | #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ |
300 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) | |
301 | #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ | |
302 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) | |
9b7b9fcc AA |
303 | #else /* CONFIG_NFS_V4_1 */ |
304 | #define encode_sequence_maxsz 0 | |
305 | #define decode_sequence_maxsz 0 | |
306 | #endif /* CONFIG_NFS_V4_1 */ | |
307 | ||
1da177e4 LT |
308 | #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ |
309 | #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ | |
310 | #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 311 | encode_sequence_maxsz + \ |
1da177e4 | 312 | encode_putfh_maxsz + \ |
9104a55d | 313 | encode_read_maxsz) |
1da177e4 | 314 | #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 315 | decode_sequence_maxsz + \ |
1da177e4 | 316 | decode_putfh_maxsz + \ |
9104a55d | 317 | decode_read_maxsz) |
1da177e4 | 318 | #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 319 | encode_sequence_maxsz + \ |
1da177e4 | 320 | encode_putfh_maxsz + \ |
9104a55d | 321 | encode_readlink_maxsz) |
1da177e4 | 322 | #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 323 | decode_sequence_maxsz + \ |
1da177e4 | 324 | decode_putfh_maxsz + \ |
9104a55d | 325 | decode_readlink_maxsz) |
1da177e4 | 326 | #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 327 | encode_sequence_maxsz + \ |
1da177e4 | 328 | encode_putfh_maxsz + \ |
9104a55d | 329 | encode_readdir_maxsz) |
1da177e4 | 330 | #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 331 | decode_sequence_maxsz + \ |
1da177e4 | 332 | decode_putfh_maxsz + \ |
9104a55d | 333 | decode_readdir_maxsz) |
1da177e4 | 334 | #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 335 | encode_sequence_maxsz + \ |
1da177e4 | 336 | encode_putfh_maxsz + \ |
9104a55d | 337 | encode_write_maxsz + \ |
4f9838c7 | 338 | encode_getattr_maxsz) |
1da177e4 | 339 | #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 340 | decode_sequence_maxsz + \ |
1da177e4 | 341 | decode_putfh_maxsz + \ |
9104a55d | 342 | decode_write_maxsz + \ |
4f9838c7 | 343 | decode_getattr_maxsz) |
1da177e4 | 344 | #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 345 | encode_sequence_maxsz + \ |
1da177e4 | 346 | encode_putfh_maxsz + \ |
9104a55d | 347 | encode_commit_maxsz + \ |
4f9838c7 | 348 | encode_getattr_maxsz) |
1da177e4 | 349 | #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 350 | decode_sequence_maxsz + \ |
1da177e4 | 351 | decode_putfh_maxsz + \ |
9104a55d | 352 | decode_commit_maxsz + \ |
4f9838c7 | 353 | decode_getattr_maxsz) |
1da177e4 | 354 | #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 355 | encode_sequence_maxsz + \ |
2cebf828 TM |
356 | encode_putfh_maxsz + \ |
357 | encode_savefh_maxsz + \ | |
358 | encode_open_maxsz + \ | |
359 | encode_getfh_maxsz + \ | |
360 | encode_getattr_maxsz + \ | |
361 | encode_restorefh_maxsz + \ | |
362 | encode_getattr_maxsz) | |
1da177e4 | 363 | #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 364 | decode_sequence_maxsz + \ |
2cebf828 TM |
365 | decode_putfh_maxsz + \ |
366 | decode_savefh_maxsz + \ | |
367 | decode_open_maxsz + \ | |
368 | decode_getfh_maxsz + \ | |
369 | decode_getattr_maxsz + \ | |
370 | decode_restorefh_maxsz + \ | |
371 | decode_getattr_maxsz) | |
9104a55d TM |
372 | #define NFS4_enc_open_confirm_sz \ |
373 | (compound_encode_hdr_maxsz + \ | |
374 | encode_putfh_maxsz + \ | |
375 | encode_open_confirm_maxsz) | |
376 | #define NFS4_dec_open_confirm_sz \ | |
377 | (compound_decode_hdr_maxsz + \ | |
378 | decode_putfh_maxsz + \ | |
379 | decode_open_confirm_maxsz) | |
1da177e4 | 380 | #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 381 | encode_sequence_maxsz + \ |
1da177e4 | 382 | encode_putfh_maxsz + \ |
2cebf828 TM |
383 | encode_open_maxsz + \ |
384 | encode_getattr_maxsz) | |
1da177e4 | 385 | #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 386 | decode_sequence_maxsz + \ |
1da177e4 | 387 | decode_putfh_maxsz + \ |
2cebf828 TM |
388 | decode_open_maxsz + \ |
389 | decode_getattr_maxsz) | |
1da177e4 LT |
390 | #define NFS4_enc_open_downgrade_sz \ |
391 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 392 | encode_sequence_maxsz + \ |
9104a55d TM |
393 | encode_putfh_maxsz + \ |
394 | encode_open_downgrade_maxsz + \ | |
395 | encode_getattr_maxsz) | |
1da177e4 LT |
396 | #define NFS4_dec_open_downgrade_sz \ |
397 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 398 | decode_sequence_maxsz + \ |
9104a55d TM |
399 | decode_putfh_maxsz + \ |
400 | decode_open_downgrade_maxsz + \ | |
401 | decode_getattr_maxsz) | |
402 | #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 403 | encode_sequence_maxsz + \ |
9104a55d TM |
404 | encode_putfh_maxsz + \ |
405 | encode_close_maxsz + \ | |
406 | encode_getattr_maxsz) | |
407 | #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 408 | decode_sequence_maxsz + \ |
9104a55d TM |
409 | decode_putfh_maxsz + \ |
410 | decode_close_maxsz + \ | |
411 | decode_getattr_maxsz) | |
412 | #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 413 | encode_sequence_maxsz + \ |
9104a55d TM |
414 | encode_putfh_maxsz + \ |
415 | encode_setattr_maxsz + \ | |
416 | encode_getattr_maxsz) | |
417 | #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 418 | decode_sequence_maxsz + \ |
9104a55d TM |
419 | decode_putfh_maxsz + \ |
420 | decode_setattr_maxsz + \ | |
421 | decode_getattr_maxsz) | |
1da177e4 | 422 | #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 423 | encode_sequence_maxsz + \ |
1da177e4 LT |
424 | encode_putfh_maxsz + \ |
425 | encode_fsinfo_maxsz) | |
426 | #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 427 | decode_sequence_maxsz + \ |
1da177e4 LT |
428 | decode_putfh_maxsz + \ |
429 | decode_fsinfo_maxsz) | |
430 | #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ | |
431 | encode_renew_maxsz) | |
432 | #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ | |
433 | decode_renew_maxsz) | |
434 | #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ | |
435 | encode_setclientid_maxsz) | |
436 | #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ | |
437 | decode_setclientid_maxsz) | |
438 | #define NFS4_enc_setclientid_confirm_sz \ | |
439 | (compound_encode_hdr_maxsz + \ | |
440 | encode_setclientid_confirm_maxsz + \ | |
441 | encode_putrootfh_maxsz + \ | |
442 | encode_fsinfo_maxsz) | |
443 | #define NFS4_dec_setclientid_confirm_sz \ | |
444 | (compound_decode_hdr_maxsz + \ | |
445 | decode_setclientid_confirm_maxsz + \ | |
446 | decode_putrootfh_maxsz + \ | |
447 | decode_fsinfo_maxsz) | |
448 | #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 449 | encode_sequence_maxsz + \ |
1da177e4 | 450 | encode_putfh_maxsz + \ |
9104a55d | 451 | encode_lock_maxsz) |
1da177e4 | 452 | #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 453 | decode_sequence_maxsz + \ |
1da177e4 | 454 | decode_putfh_maxsz + \ |
9104a55d | 455 | decode_lock_maxsz) |
1da177e4 | 456 | #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 457 | encode_sequence_maxsz + \ |
1da177e4 | 458 | encode_putfh_maxsz + \ |
9104a55d TM |
459 | encode_lockt_maxsz) |
460 | #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 461 | decode_sequence_maxsz + \ |
9104a55d TM |
462 | decode_putfh_maxsz + \ |
463 | decode_lockt_maxsz) | |
1da177e4 | 464 | #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 465 | encode_sequence_maxsz + \ |
1da177e4 | 466 | encode_putfh_maxsz + \ |
9104a55d | 467 | encode_locku_maxsz) |
1da177e4 | 468 | #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 469 | decode_sequence_maxsz + \ |
1da177e4 | 470 | decode_putfh_maxsz + \ |
9104a55d | 471 | decode_locku_maxsz) |
1da177e4 | 472 | #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 473 | encode_sequence_maxsz + \ |
1da177e4 | 474 | encode_putfh_maxsz + \ |
76b32999 TM |
475 | encode_access_maxsz + \ |
476 | encode_getattr_maxsz) | |
1da177e4 | 477 | #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 478 | decode_sequence_maxsz + \ |
1da177e4 | 479 | decode_putfh_maxsz + \ |
76b32999 TM |
480 | decode_access_maxsz + \ |
481 | decode_getattr_maxsz) | |
1da177e4 | 482 | #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 483 | encode_sequence_maxsz + \ |
1da177e4 LT |
484 | encode_putfh_maxsz + \ |
485 | encode_getattr_maxsz) | |
486 | #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 487 | decode_sequence_maxsz + \ |
1da177e4 LT |
488 | decode_putfh_maxsz + \ |
489 | decode_getattr_maxsz) | |
490 | #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 491 | encode_sequence_maxsz + \ |
1da177e4 LT |
492 | encode_putfh_maxsz + \ |
493 | encode_lookup_maxsz + \ | |
494 | encode_getattr_maxsz + \ | |
495 | encode_getfh_maxsz) | |
496 | #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 497 | decode_sequence_maxsz + \ |
1da177e4 | 498 | decode_putfh_maxsz + \ |
e6889620 | 499 | decode_lookup_maxsz + \ |
1da177e4 LT |
500 | decode_getattr_maxsz + \ |
501 | decode_getfh_maxsz) | |
502 | #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 503 | encode_sequence_maxsz + \ |
1da177e4 LT |
504 | encode_putrootfh_maxsz + \ |
505 | encode_getattr_maxsz + \ | |
506 | encode_getfh_maxsz) | |
507 | #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 508 | decode_sequence_maxsz + \ |
1da177e4 LT |
509 | decode_putrootfh_maxsz + \ |
510 | decode_getattr_maxsz + \ | |
511 | decode_getfh_maxsz) | |
512 | #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 513 | encode_sequence_maxsz + \ |
1da177e4 | 514 | encode_putfh_maxsz + \ |
16e42959 TM |
515 | encode_remove_maxsz + \ |
516 | encode_getattr_maxsz) | |
1da177e4 | 517 | #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 518 | decode_sequence_maxsz + \ |
1da177e4 | 519 | decode_putfh_maxsz + \ |
6ce18391 | 520 | decode_remove_maxsz + \ |
16e42959 | 521 | decode_getattr_maxsz) |
1da177e4 | 522 | #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 523 | encode_sequence_maxsz + \ |
1da177e4 LT |
524 | encode_putfh_maxsz + \ |
525 | encode_savefh_maxsz + \ | |
526 | encode_putfh_maxsz + \ | |
6caf2c82 TM |
527 | encode_rename_maxsz + \ |
528 | encode_getattr_maxsz + \ | |
529 | encode_restorefh_maxsz + \ | |
530 | encode_getattr_maxsz) | |
1da177e4 | 531 | #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 532 | decode_sequence_maxsz + \ |
1da177e4 LT |
533 | decode_putfh_maxsz + \ |
534 | decode_savefh_maxsz + \ | |
535 | decode_putfh_maxsz + \ | |
6caf2c82 TM |
536 | decode_rename_maxsz + \ |
537 | decode_getattr_maxsz + \ | |
538 | decode_restorefh_maxsz + \ | |
539 | decode_getattr_maxsz) | |
1da177e4 | 540 | #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 541 | encode_sequence_maxsz + \ |
1da177e4 LT |
542 | encode_putfh_maxsz + \ |
543 | encode_savefh_maxsz + \ | |
544 | encode_putfh_maxsz + \ | |
91ba2eee TM |
545 | encode_link_maxsz + \ |
546 | decode_getattr_maxsz + \ | |
547 | encode_restorefh_maxsz + \ | |
548 | decode_getattr_maxsz) | |
1da177e4 | 549 | #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 550 | decode_sequence_maxsz + \ |
1da177e4 LT |
551 | decode_putfh_maxsz + \ |
552 | decode_savefh_maxsz + \ | |
553 | decode_putfh_maxsz + \ | |
91ba2eee TM |
554 | decode_link_maxsz + \ |
555 | decode_getattr_maxsz + \ | |
556 | decode_restorefh_maxsz + \ | |
557 | decode_getattr_maxsz) | |
1da177e4 | 558 | #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 559 | encode_sequence_maxsz + \ |
1da177e4 LT |
560 | encode_putfh_maxsz + \ |
561 | encode_symlink_maxsz + \ | |
562 | encode_getattr_maxsz + \ | |
563 | encode_getfh_maxsz) | |
564 | #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 565 | decode_sequence_maxsz + \ |
1da177e4 LT |
566 | decode_putfh_maxsz + \ |
567 | decode_symlink_maxsz + \ | |
568 | decode_getattr_maxsz + \ | |
569 | decode_getfh_maxsz) | |
570 | #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 571 | encode_sequence_maxsz + \ |
1da177e4 | 572 | encode_putfh_maxsz + \ |
56ae19f3 | 573 | encode_savefh_maxsz + \ |
1da177e4 | 574 | encode_create_maxsz + \ |
56ae19f3 | 575 | encode_getfh_maxsz + \ |
1da177e4 | 576 | encode_getattr_maxsz + \ |
56ae19f3 TM |
577 | encode_restorefh_maxsz + \ |
578 | encode_getattr_maxsz) | |
1da177e4 | 579 | #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 580 | decode_sequence_maxsz + \ |
1da177e4 | 581 | decode_putfh_maxsz + \ |
56ae19f3 | 582 | decode_savefh_maxsz + \ |
1da177e4 | 583 | decode_create_maxsz + \ |
56ae19f3 | 584 | decode_getfh_maxsz + \ |
1da177e4 | 585 | decode_getattr_maxsz + \ |
56ae19f3 TM |
586 | decode_restorefh_maxsz + \ |
587 | decode_getattr_maxsz) | |
1da177e4 | 588 | #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 589 | encode_sequence_maxsz + \ |
1da177e4 LT |
590 | encode_putfh_maxsz + \ |
591 | encode_getattr_maxsz) | |
592 | #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 593 | decode_sequence_maxsz + \ |
1da177e4 LT |
594 | decode_putfh_maxsz + \ |
595 | decode_getattr_maxsz) | |
596 | #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 597 | encode_sequence_maxsz + \ |
1da177e4 | 598 | encode_putfh_maxsz + \ |
9104a55d | 599 | encode_statfs_maxsz) |
1da177e4 | 600 | #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 601 | decode_sequence_maxsz + \ |
1da177e4 | 602 | decode_putfh_maxsz + \ |
9104a55d | 603 | decode_statfs_maxsz) |
1da177e4 | 604 | #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 605 | encode_sequence_maxsz + \ |
ab91f264 | 606 | encode_putfh_maxsz + \ |
1da177e4 LT |
607 | encode_getattr_maxsz) |
608 | #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 609 | decode_sequence_maxsz + \ |
ab91f264 | 610 | decode_putfh_maxsz + \ |
1da177e4 LT |
611 | decode_getattr_maxsz) |
612 | #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 613 | encode_sequence_maxsz + \ |
1da177e4 | 614 | encode_putfh_maxsz + \ |
fa178f29 TM |
615 | encode_delegreturn_maxsz + \ |
616 | encode_getattr_maxsz) | |
1da177e4 | 617 | #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 618 | decode_sequence_maxsz + \ |
fa178f29 TM |
619 | decode_delegreturn_maxsz + \ |
620 | decode_getattr_maxsz) | |
029d105e | 621 | #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 622 | encode_sequence_maxsz + \ |
029d105e | 623 | encode_putfh_maxsz + \ |
9104a55d | 624 | encode_getacl_maxsz) |
029d105e | 625 | #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 626 | decode_sequence_maxsz + \ |
029d105e | 627 | decode_putfh_maxsz + \ |
9104a55d | 628 | decode_getacl_maxsz) |
23ec6965 | 629 | #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 630 | encode_sequence_maxsz + \ |
23ec6965 | 631 | encode_putfh_maxsz + \ |
9104a55d | 632 | encode_setacl_maxsz) |
23ec6965 | 633 | #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 634 | decode_sequence_maxsz + \ |
23ec6965 | 635 | decode_putfh_maxsz + \ |
9104a55d | 636 | decode_setacl_maxsz) |
683b57b4 TM |
637 | #define NFS4_enc_fs_locations_sz \ |
638 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 639 | encode_sequence_maxsz + \ |
683b57b4 | 640 | encode_putfh_maxsz + \ |
e6889620 TM |
641 | encode_lookup_maxsz + \ |
642 | encode_fs_locations_maxsz) | |
683b57b4 TM |
643 | #define NFS4_dec_fs_locations_sz \ |
644 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 645 | decode_sequence_maxsz + \ |
683b57b4 | 646 | decode_putfh_maxsz + \ |
e6889620 TM |
647 | decode_lookup_maxsz + \ |
648 | decode_fs_locations_maxsz) | |
99fe60d0 BH |
649 | #if defined(CONFIG_NFS_V4_1) |
650 | #define NFS4_enc_exchange_id_sz \ | |
651 | (compound_encode_hdr_maxsz + \ | |
652 | encode_exchange_id_maxsz) | |
653 | #define NFS4_dec_exchange_id_sz \ | |
654 | (compound_decode_hdr_maxsz + \ | |
655 | decode_exchange_id_maxsz) | |
fc931582 AA |
656 | #define NFS4_enc_create_session_sz \ |
657 | (compound_encode_hdr_maxsz + \ | |
658 | encode_create_session_maxsz) | |
659 | #define NFS4_dec_create_session_sz \ | |
660 | (compound_decode_hdr_maxsz + \ | |
661 | decode_create_session_maxsz) | |
0f3e66c6 AA |
662 | #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ |
663 | encode_destroy_session_maxsz) | |
664 | #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ | |
665 | decode_destroy_session_maxsz) | |
fc01cea9 AA |
666 | #define NFS4_enc_sequence_sz \ |
667 | (compound_decode_hdr_maxsz + \ | |
668 | encode_sequence_maxsz) | |
669 | #define NFS4_dec_sequence_sz \ | |
670 | (compound_decode_hdr_maxsz + \ | |
671 | decode_sequence_maxsz) | |
2050f0cc AA |
672 | #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ |
673 | encode_sequence_maxsz + \ | |
674 | encode_putrootfh_maxsz + \ | |
675 | encode_fsinfo_maxsz) | |
676 | #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ | |
677 | decode_sequence_maxsz + \ | |
678 | decode_putrootfh_maxsz + \ | |
679 | decode_fsinfo_maxsz) | |
99fe60d0 | 680 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 | 681 | |
bca79478 TM |
682 | static const umode_t nfs_type2fmt[] = { |
683 | [NF4BAD] = 0, | |
684 | [NF4REG] = S_IFREG, | |
685 | [NF4DIR] = S_IFDIR, | |
686 | [NF4BLK] = S_IFBLK, | |
687 | [NF4CHR] = S_IFCHR, | |
688 | [NF4LNK] = S_IFLNK, | |
689 | [NF4SOCK] = S_IFSOCK, | |
690 | [NF4FIFO] = S_IFIFO, | |
691 | [NF4ATTRDIR] = 0, | |
692 | [NF4NAMEDATTR] = 0, | |
1da177e4 LT |
693 | }; |
694 | ||
695 | struct compound_hdr { | |
696 | int32_t status; | |
697 | uint32_t nops; | |
d017931c | 698 | __be32 * nops_p; |
1da177e4 LT |
699 | uint32_t taglen; |
700 | char * tag; | |
0c4e8c18 | 701 | uint32_t replen; /* expected reply words */ |
66cc0429 | 702 | u32 minorversion; |
1da177e4 LT |
703 | }; |
704 | ||
705 | /* | |
706 | * START OF "GENERIC" ENCODE ROUTINES. | |
707 | * These may look a little ugly since they are imported from a "generic" | |
708 | * set of XDR encode/decode routines which are intended to be shared by | |
709 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
710 | * | |
711 | * If the pain of reading these is too great, it should be a straightforward | |
712 | * task to translate them into Linux-specific versions which are more | |
713 | * consistent with the style used in NFSv2/v3... | |
714 | */ | |
715 | #define WRITE32(n) *p++ = htonl(n) | |
716 | #define WRITE64(n) do { \ | |
717 | *p++ = htonl((uint32_t)((n) >> 32)); \ | |
718 | *p++ = htonl((uint32_t)(n)); \ | |
719 | } while (0) | |
720 | #define WRITEMEM(ptr,nbytes) do { \ | |
721 | p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ | |
722 | } while (0) | |
723 | ||
724 | #define RESERVE_SPACE(nbytes) do { \ | |
725 | p = xdr_reserve_space(xdr, nbytes); \ | |
1da177e4 LT |
726 | BUG_ON(!p); \ |
727 | } while (0) | |
728 | ||
729 | static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) | |
730 | { | |
8687b63a | 731 | __be32 *p; |
1da177e4 LT |
732 | |
733 | p = xdr_reserve_space(xdr, 4 + len); | |
734 | BUG_ON(p == NULL); | |
735 | xdr_encode_opaque(p, str, len); | |
736 | } | |
737 | ||
0c4e8c18 BH |
738 | static void encode_compound_hdr(struct xdr_stream *xdr, |
739 | struct rpc_rqst *req, | |
740 | struct compound_hdr *hdr) | |
1da177e4 | 741 | { |
8687b63a | 742 | __be32 *p; |
0c4e8c18 BH |
743 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
744 | ||
745 | /* initialize running count of expected bytes in reply. | |
746 | * NOTE: the replied tag SHOULD be the same is the one sent, | |
747 | * but this is not required as a MUST for the server to do so. */ | |
748 | hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; | |
1da177e4 LT |
749 | |
750 | dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); | |
751 | BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); | |
752 | RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); | |
753 | WRITE32(hdr->taglen); | |
754 | WRITEMEM(hdr->tag, hdr->taglen); | |
66cc0429 | 755 | WRITE32(hdr->minorversion); |
d017931c | 756 | hdr->nops_p = p; |
1da177e4 | 757 | WRITE32(hdr->nops); |
d017931c AA |
758 | } |
759 | ||
760 | static void encode_nops(struct compound_hdr *hdr) | |
761 | { | |
fc931582 | 762 | BUG_ON(hdr->nops > NFS4_MAX_OPS); |
d017931c | 763 | *hdr->nops_p = htonl(hdr->nops); |
1da177e4 LT |
764 | } |
765 | ||
766 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) | |
767 | { | |
8687b63a | 768 | __be32 *p; |
1da177e4 LT |
769 | |
770 | p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); | |
771 | BUG_ON(p == NULL); | |
772 | xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); | |
773 | } | |
774 | ||
cf8cdbe5 | 775 | static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) |
1da177e4 LT |
776 | { |
777 | char owner_name[IDMAP_NAMESZ]; | |
778 | char owner_group[IDMAP_NAMESZ]; | |
779 | int owner_namelen = 0; | |
780 | int owner_grouplen = 0; | |
8687b63a AV |
781 | __be32 *p; |
782 | __be32 *q; | |
1da177e4 LT |
783 | int len; |
784 | uint32_t bmval0 = 0; | |
785 | uint32_t bmval1 = 0; | |
1da177e4 LT |
786 | |
787 | /* | |
788 | * We reserve enough space to write the entire attribute buffer at once. | |
789 | * In the worst-case, this would be | |
790 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) | |
791 | * = 36 bytes, plus any contribution from variable-length fields | |
23ec6965 | 792 | * such as owner/group. |
1da177e4 LT |
793 | */ |
794 | len = 16; | |
795 | ||
796 | /* Sigh */ | |
797 | if (iap->ia_valid & ATTR_SIZE) | |
798 | len += 8; | |
799 | if (iap->ia_valid & ATTR_MODE) | |
800 | len += 4; | |
801 | if (iap->ia_valid & ATTR_UID) { | |
7539bbab | 802 | owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); |
1da177e4 | 803 | if (owner_namelen < 0) { |
fe82a183 CL |
804 | dprintk("nfs: couldn't resolve uid %d to string\n", |
805 | iap->ia_uid); | |
1da177e4 LT |
806 | /* XXX */ |
807 | strcpy(owner_name, "nobody"); | |
808 | owner_namelen = sizeof("nobody") - 1; | |
809 | /* goto out; */ | |
810 | } | |
811 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); | |
812 | } | |
813 | if (iap->ia_valid & ATTR_GID) { | |
7539bbab | 814 | owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); |
1da177e4 | 815 | if (owner_grouplen < 0) { |
fe82a183 CL |
816 | dprintk("nfs: couldn't resolve gid %d to string\n", |
817 | iap->ia_gid); | |
1da177e4 LT |
818 | strcpy(owner_group, "nobody"); |
819 | owner_grouplen = sizeof("nobody") - 1; | |
820 | /* goto out; */ | |
821 | } | |
822 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); | |
823 | } | |
824 | if (iap->ia_valid & ATTR_ATIME_SET) | |
825 | len += 16; | |
826 | else if (iap->ia_valid & ATTR_ATIME) | |
827 | len += 4; | |
828 | if (iap->ia_valid & ATTR_MTIME_SET) | |
829 | len += 16; | |
830 | else if (iap->ia_valid & ATTR_MTIME) | |
831 | len += 4; | |
832 | RESERVE_SPACE(len); | |
833 | ||
834 | /* | |
835 | * We write the bitmap length now, but leave the bitmap and the attribute | |
836 | * buffer length to be backfilled at the end of this routine. | |
837 | */ | |
838 | WRITE32(2); | |
839 | q = p; | |
840 | p += 3; | |
841 | ||
842 | if (iap->ia_valid & ATTR_SIZE) { | |
843 | bmval0 |= FATTR4_WORD0_SIZE; | |
844 | WRITE64(iap->ia_size); | |
845 | } | |
846 | if (iap->ia_valid & ATTR_MODE) { | |
847 | bmval1 |= FATTR4_WORD1_MODE; | |
cf3fff54 | 848 | WRITE32(iap->ia_mode & S_IALLUGO); |
1da177e4 LT |
849 | } |
850 | if (iap->ia_valid & ATTR_UID) { | |
851 | bmval1 |= FATTR4_WORD1_OWNER; | |
852 | WRITE32(owner_namelen); | |
853 | WRITEMEM(owner_name, owner_namelen); | |
854 | } | |
855 | if (iap->ia_valid & ATTR_GID) { | |
856 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; | |
857 | WRITE32(owner_grouplen); | |
858 | WRITEMEM(owner_group, owner_grouplen); | |
859 | } | |
860 | if (iap->ia_valid & ATTR_ATIME_SET) { | |
861 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
862 | WRITE32(NFS4_SET_TO_CLIENT_TIME); | |
863 | WRITE32(0); | |
864 | WRITE32(iap->ia_mtime.tv_sec); | |
865 | WRITE32(iap->ia_mtime.tv_nsec); | |
866 | } | |
867 | else if (iap->ia_valid & ATTR_ATIME) { | |
868 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
869 | WRITE32(NFS4_SET_TO_SERVER_TIME); | |
870 | } | |
871 | if (iap->ia_valid & ATTR_MTIME_SET) { | |
872 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
873 | WRITE32(NFS4_SET_TO_CLIENT_TIME); | |
874 | WRITE32(0); | |
875 | WRITE32(iap->ia_mtime.tv_sec); | |
876 | WRITE32(iap->ia_mtime.tv_nsec); | |
877 | } | |
878 | else if (iap->ia_valid & ATTR_MTIME) { | |
879 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
880 | WRITE32(NFS4_SET_TO_SERVER_TIME); | |
881 | } | |
6c0195a4 | 882 | |
1da177e4 LT |
883 | /* |
884 | * Now we backfill the bitmap and the attribute buffer length. | |
885 | */ | |
886 | if (len != ((char *)p - (char *)q) + 4) { | |
fe82a183 | 887 | printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", |
1da177e4 LT |
888 | len, ((char *)p - (char *)q) + 4); |
889 | BUG(); | |
890 | } | |
891 | len = (char *)p - (char *)q - 12; | |
892 | *q++ = htonl(bmval0); | |
893 | *q++ = htonl(bmval1); | |
894 | *q++ = htonl(len); | |
895 | ||
1da177e4 | 896 | /* out: */ |
1da177e4 LT |
897 | } |
898 | ||
cf8cdbe5 | 899 | static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) |
1da177e4 | 900 | { |
8687b63a | 901 | __be32 *p; |
1da177e4 LT |
902 | |
903 | RESERVE_SPACE(8); | |
904 | WRITE32(OP_ACCESS); | |
905 | WRITE32(access); | |
d017931c | 906 | hdr->nops++; |
dadf0c27 | 907 | hdr->replen += decode_access_maxsz; |
1da177e4 LT |
908 | } |
909 | ||
cf8cdbe5 | 910 | static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 911 | { |
8687b63a | 912 | __be32 *p; |
1da177e4 | 913 | |
8ae20abd | 914 | RESERVE_SPACE(8+NFS4_STATEID_SIZE); |
1da177e4 | 915 | WRITE32(OP_CLOSE); |
cee54fc9 | 916 | WRITE32(arg->seqid->sequence->counter); |
8ae20abd | 917 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
d017931c | 918 | hdr->nops++; |
dadf0c27 | 919 | hdr->replen += decode_close_maxsz; |
1da177e4 LT |
920 | } |
921 | ||
cf8cdbe5 | 922 | static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 923 | { |
8687b63a | 924 | __be32 *p; |
6c0195a4 | 925 | |
05d564fe AA |
926 | RESERVE_SPACE(16); |
927 | WRITE32(OP_COMMIT); | |
928 | WRITE64(args->offset); | |
929 | WRITE32(args->count); | |
d017931c | 930 | hdr->nops++; |
dadf0c27 | 931 | hdr->replen += decode_commit_maxsz; |
1da177e4 LT |
932 | } |
933 | ||
cf8cdbe5 | 934 | static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) |
1da177e4 | 935 | { |
8687b63a | 936 | __be32 *p; |
6c0195a4 | 937 | |
1da177e4 LT |
938 | RESERVE_SPACE(8); |
939 | WRITE32(OP_CREATE); | |
940 | WRITE32(create->ftype); | |
941 | ||
942 | switch (create->ftype) { | |
943 | case NF4LNK: | |
94a6d753 CL |
944 | RESERVE_SPACE(4); |
945 | WRITE32(create->u.symlink.len); | |
946 | xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); | |
1da177e4 LT |
947 | break; |
948 | ||
949 | case NF4BLK: case NF4CHR: | |
950 | RESERVE_SPACE(8); | |
951 | WRITE32(create->u.device.specdata1); | |
952 | WRITE32(create->u.device.specdata2); | |
953 | break; | |
954 | ||
955 | default: | |
956 | break; | |
957 | } | |
958 | ||
959 | RESERVE_SPACE(4 + create->name->len); | |
960 | WRITE32(create->name->len); | |
961 | WRITEMEM(create->name->name, create->name->len); | |
d017931c | 962 | hdr->nops++; |
dadf0c27 | 963 | hdr->replen += decode_create_maxsz; |
1da177e4 | 964 | |
cf8cdbe5 | 965 | encode_attrs(xdr, create->attrs, create->server); |
1da177e4 LT |
966 | } |
967 | ||
cf8cdbe5 | 968 | static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) |
1da177e4 | 969 | { |
05d564fe | 970 | __be32 *p; |
1da177e4 | 971 | |
05d564fe AA |
972 | RESERVE_SPACE(12); |
973 | WRITE32(OP_GETATTR); | |
974 | WRITE32(1); | |
975 | WRITE32(bitmap); | |
d017931c | 976 | hdr->nops++; |
dadf0c27 | 977 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
978 | } |
979 | ||
cf8cdbe5 | 980 | static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) |
1da177e4 | 981 | { |
05d564fe | 982 | __be32 *p; |
1da177e4 | 983 | |
05d564fe AA |
984 | RESERVE_SPACE(16); |
985 | WRITE32(OP_GETATTR); | |
986 | WRITE32(2); | |
987 | WRITE32(bm0); | |
988 | WRITE32(bm1); | |
d017931c | 989 | hdr->nops++; |
dadf0c27 | 990 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
991 | } |
992 | ||
cf8cdbe5 | 993 | static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 994 | { |
cf8cdbe5 AA |
995 | encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], |
996 | bitmask[1] & nfs4_fattr_bitmap[1], hdr); | |
1da177e4 LT |
997 | } |
998 | ||
cf8cdbe5 | 999 | static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 1000 | { |
cf8cdbe5 AA |
1001 | encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
1002 | bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); | |
1da177e4 LT |
1003 | } |
1004 | ||
cf8cdbe5 | 1005 | static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
830b8e33 | 1006 | { |
cf8cdbe5 AA |
1007 | encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], |
1008 | bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); | |
830b8e33 MN |
1009 | } |
1010 | ||
cf8cdbe5 | 1011 | static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1012 | { |
8687b63a | 1013 | __be32 *p; |
1da177e4 LT |
1014 | |
1015 | RESERVE_SPACE(4); | |
1016 | WRITE32(OP_GETFH); | |
d017931c | 1017 | hdr->nops++; |
dadf0c27 | 1018 | hdr->replen += decode_getfh_maxsz; |
1da177e4 LT |
1019 | } |
1020 | ||
cf8cdbe5 | 1021 | static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1022 | { |
8687b63a | 1023 | __be32 *p; |
1da177e4 LT |
1024 | |
1025 | RESERVE_SPACE(8 + name->len); | |
1026 | WRITE32(OP_LINK); | |
1027 | WRITE32(name->len); | |
1028 | WRITEMEM(name->name, name->len); | |
d017931c | 1029 | hdr->nops++; |
dadf0c27 | 1030 | hdr->replen += decode_link_maxsz; |
1da177e4 LT |
1031 | } |
1032 | ||
911d1aaf TM |
1033 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
1034 | { | |
1035 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) | |
1036 | return block ? NFS4_READW_LT : NFS4_READ_LT; | |
1037 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; | |
1038 | } | |
1039 | ||
1040 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) | |
1041 | { | |
1042 | if (fl->fl_end == OFFSET_MAX) | |
1043 | return ~(uint64_t)0; | |
1044 | return fl->fl_end - fl->fl_start + 1; | |
1045 | } | |
1046 | ||
1da177e4 LT |
1047 | /* |
1048 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 | |
1049 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 | |
1050 | */ | |
cf8cdbe5 | 1051 | static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) |
1da177e4 | 1052 | { |
8687b63a | 1053 | __be32 *p; |
1da177e4 LT |
1054 | |
1055 | RESERVE_SPACE(32); | |
1056 | WRITE32(OP_LOCK); | |
911d1aaf TM |
1057 | WRITE32(nfs4_lock_type(args->fl, args->block)); |
1058 | WRITE32(args->reclaim); | |
1059 | WRITE64(args->fl->fl_start); | |
1060 | WRITE64(nfs4_lock_length(args->fl)); | |
1061 | WRITE32(args->new_lock_owner); | |
1062 | if (args->new_lock_owner){ | |
9f958ab8 | 1063 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); |
911d1aaf | 1064 | WRITE32(args->open_seqid->sequence->counter); |
8ae20abd | 1065 | WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
1066 | WRITE32(args->lock_seqid->sequence->counter); |
1067 | WRITE64(args->lock_owner.clientid); | |
9f958ab8 TM |
1068 | WRITE32(16); |
1069 | WRITEMEM("lock id:", 8); | |
1070 | WRITE64(args->lock_owner.id); | |
1da177e4 LT |
1071 | } |
1072 | else { | |
8ae20abd TM |
1073 | RESERVE_SPACE(NFS4_STATEID_SIZE+4); |
1074 | WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); | |
911d1aaf | 1075 | WRITE32(args->lock_seqid->sequence->counter); |
1da177e4 | 1076 | } |
d017931c | 1077 | hdr->nops++; |
dadf0c27 | 1078 | hdr->replen += decode_lock_maxsz; |
1da177e4 LT |
1079 | } |
1080 | ||
cf8cdbe5 | 1081 | static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) |
1da177e4 | 1082 | { |
8687b63a | 1083 | __be32 *p; |
1da177e4 | 1084 | |
9f958ab8 | 1085 | RESERVE_SPACE(52); |
1da177e4 | 1086 | WRITE32(OP_LOCKT); |
911d1aaf TM |
1087 | WRITE32(nfs4_lock_type(args->fl, 0)); |
1088 | WRITE64(args->fl->fl_start); | |
1089 | WRITE64(nfs4_lock_length(args->fl)); | |
1090 | WRITE64(args->lock_owner.clientid); | |
9f958ab8 TM |
1091 | WRITE32(16); |
1092 | WRITEMEM("lock id:", 8); | |
1093 | WRITE64(args->lock_owner.id); | |
d017931c | 1094 | hdr->nops++; |
dadf0c27 | 1095 | hdr->replen += decode_lockt_maxsz; |
1da177e4 LT |
1096 | } |
1097 | ||
cf8cdbe5 | 1098 | static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) |
1da177e4 | 1099 | { |
8687b63a | 1100 | __be32 *p; |
1da177e4 | 1101 | |
8ae20abd | 1102 | RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); |
1da177e4 | 1103 | WRITE32(OP_LOCKU); |
911d1aaf TM |
1104 | WRITE32(nfs4_lock_type(args->fl, 0)); |
1105 | WRITE32(args->seqid->sequence->counter); | |
8ae20abd | 1106 | WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
1107 | WRITE64(args->fl->fl_start); |
1108 | WRITE64(nfs4_lock_length(args->fl)); | |
d017931c | 1109 | hdr->nops++; |
dadf0c27 | 1110 | hdr->replen += decode_locku_maxsz; |
1da177e4 LT |
1111 | } |
1112 | ||
cf8cdbe5 | 1113 | static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 LT |
1114 | { |
1115 | int len = name->len; | |
8687b63a | 1116 | __be32 *p; |
1da177e4 LT |
1117 | |
1118 | RESERVE_SPACE(8 + len); | |
1119 | WRITE32(OP_LOOKUP); | |
1120 | WRITE32(len); | |
1121 | WRITEMEM(name->name, len); | |
d017931c | 1122 | hdr->nops++; |
dadf0c27 | 1123 | hdr->replen += decode_lookup_maxsz; |
1da177e4 LT |
1124 | } |
1125 | ||
dc0b027d | 1126 | static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) |
1da177e4 | 1127 | { |
8687b63a | 1128 | __be32 *p; |
1da177e4 LT |
1129 | |
1130 | RESERVE_SPACE(8); | |
dc0b027d | 1131 | switch (fmode & (FMODE_READ|FMODE_WRITE)) { |
05d564fe AA |
1132 | case FMODE_READ: |
1133 | WRITE32(NFS4_SHARE_ACCESS_READ); | |
1134 | break; | |
1135 | case FMODE_WRITE: | |
1136 | WRITE32(NFS4_SHARE_ACCESS_WRITE); | |
1137 | break; | |
1138 | case FMODE_READ|FMODE_WRITE: | |
1139 | WRITE32(NFS4_SHARE_ACCESS_BOTH); | |
1140 | break; | |
1141 | default: | |
1142 | WRITE32(0); | |
1da177e4 LT |
1143 | } |
1144 | WRITE32(0); /* for linux, share_deny = 0 always */ | |
1145 | } | |
1146 | ||
1147 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1148 | { | |
8687b63a | 1149 | __be32 *p; |
1da177e4 LT |
1150 | /* |
1151 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, | |
1152 | * owner 4 = 32 | |
1153 | */ | |
1154 | RESERVE_SPACE(8); | |
1155 | WRITE32(OP_OPEN); | |
cee54fc9 | 1156 | WRITE32(arg->seqid->sequence->counter); |
dc0b027d | 1157 | encode_share_access(xdr, arg->fmode); |
9f958ab8 | 1158 | RESERVE_SPACE(28); |
1da177e4 | 1159 | WRITE64(arg->clientid); |
9f958ab8 TM |
1160 | WRITE32(16); |
1161 | WRITEMEM("open id:", 8); | |
1162 | WRITE64(arg->id); | |
1da177e4 LT |
1163 | } |
1164 | ||
1165 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1166 | { | |
8687b63a | 1167 | __be32 *p; |
1da177e4 LT |
1168 | |
1169 | RESERVE_SPACE(4); | |
1170 | switch(arg->open_flags & O_EXCL) { | |
05d564fe AA |
1171 | case 0: |
1172 | WRITE32(NFS4_CREATE_UNCHECKED); | |
1173 | encode_attrs(xdr, arg->u.attrs, arg->server); | |
1174 | break; | |
1175 | default: | |
1176 | WRITE32(NFS4_CREATE_EXCLUSIVE); | |
1177 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1da177e4 LT |
1178 | } |
1179 | } | |
1180 | ||
1181 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1182 | { | |
8687b63a | 1183 | __be32 *p; |
1da177e4 LT |
1184 | |
1185 | RESERVE_SPACE(4); | |
1186 | switch (arg->open_flags & O_CREAT) { | |
05d564fe AA |
1187 | case 0: |
1188 | WRITE32(NFS4_OPEN_NOCREATE); | |
1189 | break; | |
1190 | default: | |
1191 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); | |
1192 | WRITE32(NFS4_OPEN_CREATE); | |
1193 | encode_createmode(xdr, arg); | |
1da177e4 LT |
1194 | } |
1195 | } | |
1196 | ||
bd7bf9d5 | 1197 | static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) |
1da177e4 | 1198 | { |
8687b63a | 1199 | __be32 *p; |
1da177e4 LT |
1200 | |
1201 | RESERVE_SPACE(4); | |
1202 | switch (delegation_type) { | |
05d564fe AA |
1203 | case 0: |
1204 | WRITE32(NFS4_OPEN_DELEGATE_NONE); | |
1205 | break; | |
1206 | case FMODE_READ: | |
1207 | WRITE32(NFS4_OPEN_DELEGATE_READ); | |
1208 | break; | |
1209 | case FMODE_WRITE|FMODE_READ: | |
1210 | WRITE32(NFS4_OPEN_DELEGATE_WRITE); | |
1211 | break; | |
1212 | default: | |
1213 | BUG(); | |
1da177e4 LT |
1214 | } |
1215 | } | |
1216 | ||
1217 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) | |
1218 | { | |
8687b63a | 1219 | __be32 *p; |
1da177e4 LT |
1220 | |
1221 | RESERVE_SPACE(4); | |
1222 | WRITE32(NFS4_OPEN_CLAIM_NULL); | |
1223 | encode_string(xdr, name->len, name->name); | |
1224 | } | |
1225 | ||
bd7bf9d5 | 1226 | static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) |
1da177e4 | 1227 | { |
8687b63a | 1228 | __be32 *p; |
1da177e4 LT |
1229 | |
1230 | RESERVE_SPACE(4); | |
1231 | WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); | |
1232 | encode_delegation_type(xdr, type); | |
1233 | } | |
1234 | ||
1235 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) | |
1236 | { | |
8687b63a | 1237 | __be32 *p; |
1da177e4 | 1238 | |
8ae20abd | 1239 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 | 1240 | WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
8ae20abd | 1241 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1242 | encode_string(xdr, name->len, name->name); |
1243 | } | |
1244 | ||
cf8cdbe5 | 1245 | static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) |
1da177e4 LT |
1246 | { |
1247 | encode_openhdr(xdr, arg); | |
1248 | encode_opentype(xdr, arg); | |
1249 | switch (arg->claim) { | |
05d564fe AA |
1250 | case NFS4_OPEN_CLAIM_NULL: |
1251 | encode_claim_null(xdr, arg->name); | |
1252 | break; | |
1253 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
1254 | encode_claim_previous(xdr, arg->u.delegation_type); | |
1255 | break; | |
1256 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: | |
1257 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); | |
1258 | break; | |
1259 | default: | |
1260 | BUG(); | |
1da177e4 | 1261 | } |
d017931c | 1262 | hdr->nops++; |
dadf0c27 | 1263 | hdr->replen += decode_open_maxsz; |
1da177e4 LT |
1264 | } |
1265 | ||
cf8cdbe5 | 1266 | static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1267 | { |
8687b63a | 1268 | __be32 *p; |
1da177e4 | 1269 | |
8ae20abd | 1270 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1271 | WRITE32(OP_OPEN_CONFIRM); |
8ae20abd | 1272 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1273 | WRITE32(arg->seqid->sequence->counter); |
d017931c | 1274 | hdr->nops++; |
dadf0c27 | 1275 | hdr->replen += decode_open_confirm_maxsz; |
1da177e4 LT |
1276 | } |
1277 | ||
cf8cdbe5 | 1278 | static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1279 | { |
8687b63a | 1280 | __be32 *p; |
1da177e4 | 1281 | |
8ae20abd | 1282 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1283 | WRITE32(OP_OPEN_DOWNGRADE); |
8ae20abd | 1284 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1285 | WRITE32(arg->seqid->sequence->counter); |
dc0b027d | 1286 | encode_share_access(xdr, arg->fmode); |
d017931c | 1287 | hdr->nops++; |
dadf0c27 | 1288 | hdr->replen += decode_open_downgrade_maxsz; |
1da177e4 LT |
1289 | } |
1290 | ||
cf8cdbe5 | 1291 | static void |
d017931c | 1292 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) |
1da177e4 LT |
1293 | { |
1294 | int len = fh->size; | |
8687b63a | 1295 | __be32 *p; |
1da177e4 LT |
1296 | |
1297 | RESERVE_SPACE(8 + len); | |
1298 | WRITE32(OP_PUTFH); | |
1299 | WRITE32(len); | |
1300 | WRITEMEM(fh->data, len); | |
d017931c | 1301 | hdr->nops++; |
dadf0c27 | 1302 | hdr->replen += decode_putfh_maxsz; |
1da177e4 LT |
1303 | } |
1304 | ||
cf8cdbe5 | 1305 | static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1306 | { |
05d564fe | 1307 | __be32 *p; |
6c0195a4 | 1308 | |
05d564fe AA |
1309 | RESERVE_SPACE(4); |
1310 | WRITE32(OP_PUTROOTFH); | |
d017931c | 1311 | hdr->nops++; |
dadf0c27 | 1312 | hdr->replen += decode_putrootfh_maxsz; |
1da177e4 LT |
1313 | } |
1314 | ||
1315 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) | |
1316 | { | |
1da177e4 | 1317 | nfs4_stateid stateid; |
8687b63a | 1318 | __be32 *p; |
1da177e4 | 1319 | |
8ae20abd | 1320 | RESERVE_SPACE(NFS4_STATEID_SIZE); |
1da177e4 LT |
1321 | if (ctx->state != NULL) { |
1322 | nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); | |
8ae20abd | 1323 | WRITEMEM(stateid.data, NFS4_STATEID_SIZE); |
1da177e4 | 1324 | } else |
8ae20abd | 1325 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1326 | } |
1327 | ||
cf8cdbe5 | 1328 | static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) |
1da177e4 | 1329 | { |
8687b63a | 1330 | __be32 *p; |
1da177e4 LT |
1331 | |
1332 | RESERVE_SPACE(4); | |
1333 | WRITE32(OP_READ); | |
1334 | ||
1335 | encode_stateid(xdr, args->context); | |
1336 | ||
1337 | RESERVE_SPACE(12); | |
1338 | WRITE64(args->offset); | |
1339 | WRITE32(args->count); | |
d017931c | 1340 | hdr->nops++; |
dadf0c27 | 1341 | hdr->replen += decode_read_maxsz; |
1da177e4 LT |
1342 | } |
1343 | ||
cf8cdbe5 | 1344 | static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1345 | { |
97d312d0 MN |
1346 | uint32_t attrs[2] = { |
1347 | FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, | |
1348 | FATTR4_WORD1_MOUNTED_ON_FILEID, | |
1349 | }; | |
8687b63a | 1350 | __be32 *p; |
1da177e4 | 1351 | |
8ae20abd | 1352 | RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); |
1da177e4 LT |
1353 | WRITE32(OP_READDIR); |
1354 | WRITE64(readdir->cookie); | |
8ae20abd | 1355 | WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1356 | WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ |
1357 | WRITE32(readdir->count); | |
1358 | WRITE32(2); | |
97d312d0 MN |
1359 | /* Switch to mounted_on_fileid if the server supports it */ |
1360 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) | |
1361 | attrs[0] &= ~FATTR4_WORD0_FILEID; | |
1362 | else | |
1363 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
1364 | WRITE32(attrs[0] & readdir->bitmask[0]); | |
1365 | WRITE32(attrs[1] & readdir->bitmask[1]); | |
d017931c | 1366 | hdr->nops++; |
dadf0c27 | 1367 | hdr->replen += decode_readdir_maxsz; |
44109241 FI |
1368 | dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", |
1369 | __func__, | |
eadf4598 TM |
1370 | (unsigned long long)readdir->cookie, |
1371 | ((u32 *)readdir->verifier.data)[0], | |
1372 | ((u32 *)readdir->verifier.data)[1], | |
1373 | attrs[0] & readdir->bitmask[0], | |
1374 | attrs[1] & readdir->bitmask[1]); | |
1da177e4 LT |
1375 | } |
1376 | ||
cf8cdbe5 | 1377 | static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1378 | { |
8687b63a | 1379 | __be32 *p; |
1da177e4 LT |
1380 | |
1381 | RESERVE_SPACE(4); | |
1382 | WRITE32(OP_READLINK); | |
d017931c | 1383 | hdr->nops++; |
dadf0c27 | 1384 | hdr->replen += decode_readlink_maxsz; |
1da177e4 LT |
1385 | } |
1386 | ||
cf8cdbe5 | 1387 | static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1388 | { |
8687b63a | 1389 | __be32 *p; |
1da177e4 LT |
1390 | |
1391 | RESERVE_SPACE(8 + name->len); | |
1392 | WRITE32(OP_REMOVE); | |
1393 | WRITE32(name->len); | |
1394 | WRITEMEM(name->name, name->len); | |
d017931c | 1395 | hdr->nops++; |
dadf0c27 | 1396 | hdr->replen += decode_remove_maxsz; |
1da177e4 LT |
1397 | } |
1398 | ||
cf8cdbe5 | 1399 | static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) |
1da177e4 | 1400 | { |
8687b63a | 1401 | __be32 *p; |
1da177e4 LT |
1402 | |
1403 | RESERVE_SPACE(8 + oldname->len); | |
1404 | WRITE32(OP_RENAME); | |
1405 | WRITE32(oldname->len); | |
1406 | WRITEMEM(oldname->name, oldname->len); | |
6c0195a4 | 1407 | |
1da177e4 LT |
1408 | RESERVE_SPACE(4 + newname->len); |
1409 | WRITE32(newname->len); | |
1410 | WRITEMEM(newname->name, newname->len); | |
d017931c | 1411 | hdr->nops++; |
dadf0c27 | 1412 | hdr->replen += decode_rename_maxsz; |
1da177e4 LT |
1413 | } |
1414 | ||
cf8cdbe5 | 1415 | static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) |
1da177e4 | 1416 | { |
8687b63a | 1417 | __be32 *p; |
1da177e4 LT |
1418 | |
1419 | RESERVE_SPACE(12); | |
1420 | WRITE32(OP_RENEW); | |
1421 | WRITE64(client_stateid->cl_clientid); | |
d017931c | 1422 | hdr->nops++; |
dadf0c27 | 1423 | hdr->replen += decode_renew_maxsz; |
1da177e4 LT |
1424 | } |
1425 | ||
cf8cdbe5 | 1426 | static void |
d017931c | 1427 | encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
56ae19f3 | 1428 | { |
8687b63a | 1429 | __be32 *p; |
56ae19f3 TM |
1430 | |
1431 | RESERVE_SPACE(4); | |
1432 | WRITE32(OP_RESTOREFH); | |
d017931c | 1433 | hdr->nops++; |
dadf0c27 | 1434 | hdr->replen += decode_restorefh_maxsz; |
56ae19f3 TM |
1435 | } |
1436 | ||
23ec6965 | 1437 | static int |
d017931c | 1438 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) |
23ec6965 | 1439 | { |
8687b63a | 1440 | __be32 *p; |
23ec6965 | 1441 | |
8ae20abd | 1442 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
23ec6965 | 1443 | WRITE32(OP_SETATTR); |
8ae20abd | 1444 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
23ec6965 BF |
1445 | RESERVE_SPACE(2*4); |
1446 | WRITE32(1); | |
1447 | WRITE32(FATTR4_WORD0_ACL); | |
1448 | if (arg->acl_len % 4) | |
1449 | return -EINVAL; | |
1450 | RESERVE_SPACE(4); | |
1451 | WRITE32(arg->acl_len); | |
1452 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); | |
d017931c | 1453 | hdr->nops++; |
dadf0c27 | 1454 | hdr->replen += decode_setacl_maxsz; |
23ec6965 BF |
1455 | return 0; |
1456 | } | |
1457 | ||
cf8cdbe5 | 1458 | static void |
d017931c | 1459 | encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1460 | { |
8687b63a | 1461 | __be32 *p; |
1da177e4 LT |
1462 | |
1463 | RESERVE_SPACE(4); | |
1464 | WRITE32(OP_SAVEFH); | |
d017931c | 1465 | hdr->nops++; |
dadf0c27 | 1466 | hdr->replen += decode_savefh_maxsz; |
1da177e4 LT |
1467 | } |
1468 | ||
cf8cdbe5 | 1469 | static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) |
1da177e4 | 1470 | { |
8687b63a | 1471 | __be32 *p; |
6c0195a4 | 1472 | |
05d564fe AA |
1473 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1474 | WRITE32(OP_SETATTR); | |
8ae20abd | 1475 | WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); |
d017931c | 1476 | hdr->nops++; |
dadf0c27 | 1477 | hdr->replen += decode_setattr_maxsz; |
cf8cdbe5 | 1478 | encode_attrs(xdr, arg->iap, server); |
1da177e4 LT |
1479 | } |
1480 | ||
cf8cdbe5 | 1481 | static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) |
1da177e4 | 1482 | { |
8687b63a | 1483 | __be32 *p; |
1da177e4 | 1484 | |
8ae20abd | 1485 | RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); |
1da177e4 | 1486 | WRITE32(OP_SETCLIENTID); |
8ae20abd | 1487 | WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1488 | |
1489 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); | |
1490 | RESERVE_SPACE(4); | |
1491 | WRITE32(setclientid->sc_prog); | |
1492 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); | |
1493 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); | |
1494 | RESERVE_SPACE(4); | |
1495 | WRITE32(setclientid->sc_cb_ident); | |
d017931c | 1496 | hdr->nops++; |
dadf0c27 | 1497 | hdr->replen += decode_setclientid_maxsz; |
1da177e4 LT |
1498 | } |
1499 | ||
cf8cdbe5 | 1500 | static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) |
1da177e4 | 1501 | { |
05d564fe | 1502 | __be32 *p; |
1da177e4 | 1503 | |
05d564fe AA |
1504 | RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); |
1505 | WRITE32(OP_SETCLIENTID_CONFIRM); | |
1506 | WRITE64(client_state->cl_clientid); | |
1507 | WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); | |
d017931c | 1508 | hdr->nops++; |
dadf0c27 | 1509 | hdr->replen += decode_setclientid_confirm_maxsz; |
1da177e4 LT |
1510 | } |
1511 | ||
cf8cdbe5 | 1512 | static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 1513 | { |
8687b63a | 1514 | __be32 *p; |
1da177e4 LT |
1515 | |
1516 | RESERVE_SPACE(4); | |
1517 | WRITE32(OP_WRITE); | |
1518 | ||
1519 | encode_stateid(xdr, args->context); | |
1520 | ||
1521 | RESERVE_SPACE(16); | |
1522 | WRITE64(args->offset); | |
1523 | WRITE32(args->stable); | |
1524 | WRITE32(args->count); | |
1525 | ||
1526 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); | |
d017931c | 1527 | hdr->nops++; |
dadf0c27 | 1528 | hdr->replen += decode_write_maxsz; |
1da177e4 LT |
1529 | } |
1530 | ||
cf8cdbe5 | 1531 | static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) |
1da177e4 | 1532 | { |
8687b63a | 1533 | __be32 *p; |
1da177e4 | 1534 | |
8ae20abd | 1535 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 LT |
1536 | |
1537 | WRITE32(OP_DELEGRETURN); | |
8ae20abd | 1538 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
d017931c | 1539 | hdr->nops++; |
dadf0c27 | 1540 | hdr->replen += decode_delegreturn_maxsz; |
1da177e4 | 1541 | } |
9b7b9fcc | 1542 | |
99fe60d0 | 1543 | #if defined(CONFIG_NFS_V4_1) |
9b7b9fcc | 1544 | /* NFSv4.1 operations */ |
99fe60d0 BH |
1545 | static void encode_exchange_id(struct xdr_stream *xdr, |
1546 | struct nfs41_exchange_id_args *args, | |
1547 | struct compound_hdr *hdr) | |
1548 | { | |
1549 | __be32 *p; | |
1550 | ||
1551 | RESERVE_SPACE(4 + sizeof(args->verifier->data)); | |
1552 | WRITE32(OP_EXCHANGE_ID); | |
1553 | WRITEMEM(args->verifier->data, sizeof(args->verifier->data)); | |
1554 | ||
1555 | encode_string(xdr, args->id_len, args->id); | |
1556 | ||
1557 | RESERVE_SPACE(12); | |
1558 | WRITE32(args->flags); | |
1559 | WRITE32(0); /* zero length state_protect4_a */ | |
1560 | WRITE32(0); /* zero length implementation id array */ | |
1561 | hdr->nops++; | |
1562 | hdr->replen += decode_exchange_id_maxsz; | |
1563 | } | |
fc931582 AA |
1564 | |
1565 | static void encode_create_session(struct xdr_stream *xdr, | |
1566 | struct nfs41_create_session_args *args, | |
1567 | struct compound_hdr *hdr) | |
1568 | { | |
1569 | __be32 *p; | |
1570 | char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; | |
1571 | uint32_t len; | |
1572 | struct nfs_client *clp = args->client; | |
1573 | ||
1574 | RESERVE_SPACE(4); | |
1575 | WRITE32(OP_CREATE_SESSION); | |
1576 | ||
1577 | RESERVE_SPACE(8); | |
1578 | WRITE64(clp->cl_ex_clid); | |
1579 | ||
1580 | RESERVE_SPACE(8); | |
1581 | WRITE32(clp->cl_seqid); /*Sequence id */ | |
1582 | WRITE32(args->flags); /*flags */ | |
1583 | ||
1584 | RESERVE_SPACE(2*28); /* 2 channel_attrs */ | |
1585 | /* Fore Channel */ | |
1586 | WRITE32(args->fc_attrs.headerpadsz); /* header padding size */ | |
1587 | WRITE32(args->fc_attrs.max_rqst_sz); /* max req size */ | |
1588 | WRITE32(args->fc_attrs.max_resp_sz); /* max resp size */ | |
1589 | WRITE32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */ | |
1590 | WRITE32(args->fc_attrs.max_ops); /* max operations */ | |
1591 | WRITE32(args->fc_attrs.max_reqs); /* max requests */ | |
1592 | WRITE32(0); /* rdmachannel_attrs */ | |
1593 | ||
1594 | /* Back Channel */ | |
1595 | WRITE32(args->fc_attrs.headerpadsz); /* header padding size */ | |
1596 | WRITE32(args->bc_attrs.max_rqst_sz); /* max req size */ | |
1597 | WRITE32(args->bc_attrs.max_resp_sz); /* max resp size */ | |
1598 | WRITE32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ | |
1599 | WRITE32(args->bc_attrs.max_ops); /* max operations */ | |
1600 | WRITE32(args->bc_attrs.max_reqs); /* max requests */ | |
1601 | WRITE32(0); /* rdmachannel_attrs */ | |
1602 | ||
1603 | RESERVE_SPACE(4); | |
1604 | WRITE32(args->cb_program); /* cb_program */ | |
1605 | ||
1606 | RESERVE_SPACE(4); /* # of security flavors */ | |
1607 | WRITE32(1); | |
1608 | ||
1609 | RESERVE_SPACE(4); | |
1610 | WRITE32(RPC_AUTH_UNIX); /* auth_sys */ | |
1611 | ||
1612 | /* authsys_parms rfc1831 */ | |
1613 | RESERVE_SPACE(4); | |
1614 | WRITE32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ | |
1615 | len = scnprintf(machine_name, sizeof(machine_name), "%s", | |
1616 | clp->cl_ipaddr); | |
1617 | RESERVE_SPACE(16 + len); | |
1618 | WRITE32(len); | |
1619 | WRITEMEM(machine_name, len); | |
1620 | WRITE32(0); /* UID */ | |
1621 | WRITE32(0); /* GID */ | |
1622 | WRITE32(0); /* No more gids */ | |
1623 | hdr->nops++; | |
1624 | hdr->replen += decode_create_session_maxsz; | |
1625 | } | |
0f3e66c6 AA |
1626 | |
1627 | static void encode_destroy_session(struct xdr_stream *xdr, | |
1628 | struct nfs4_session *session, | |
1629 | struct compound_hdr *hdr) | |
1630 | { | |
1631 | __be32 *p; | |
1632 | RESERVE_SPACE(4 + NFS4_MAX_SESSIONID_LEN); | |
1633 | WRITE32(OP_DESTROY_SESSION); | |
1634 | WRITEMEM(session->sess_id.data, NFS4_MAX_SESSIONID_LEN); | |
1635 | hdr->nops++; | |
1636 | hdr->replen += decode_destroy_session_maxsz; | |
1637 | } | |
99fe60d0 BH |
1638 | #endif /* CONFIG_NFS_V4_1 */ |
1639 | ||
9b7b9fcc AA |
1640 | static void encode_sequence(struct xdr_stream *xdr, |
1641 | const struct nfs4_sequence_args *args, | |
1642 | struct compound_hdr *hdr) | |
1643 | { | |
1644 | #if defined(CONFIG_NFS_V4_1) | |
1645 | struct nfs4_session *session = args->sa_session; | |
fc01cea9 AA |
1646 | struct nfs4_slot_table *tp; |
1647 | struct nfs4_slot *slot; | |
1648 | __be32 *p; | |
9b7b9fcc AA |
1649 | |
1650 | if (!session) | |
1651 | return; | |
1652 | ||
fc01cea9 AA |
1653 | tp = &session->fc_slot_table; |
1654 | ||
1655 | WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); | |
1656 | slot = tp->slots + args->sa_slotid; | |
1657 | ||
1658 | RESERVE_SPACE(4); | |
1659 | WRITE32(OP_SEQUENCE); | |
1660 | ||
1661 | /* | |
1662 | * Sessionid + seqid + slotid + max slotid + cache_this | |
1663 | */ | |
1664 | dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " | |
1665 | "max_slotid=%d cache_this=%d\n", | |
1666 | __func__, | |
1667 | ((u32 *)session->sess_id.data)[0], | |
1668 | ((u32 *)session->sess_id.data)[1], | |
1669 | ((u32 *)session->sess_id.data)[2], | |
1670 | ((u32 *)session->sess_id.data)[3], | |
1671 | slot->seq_nr, args->sa_slotid, | |
1672 | tp->highest_used_slotid, args->sa_cache_this); | |
1673 | RESERVE_SPACE(NFS4_MAX_SESSIONID_LEN + 16); | |
1674 | WRITEMEM(session->sess_id.data, NFS4_MAX_SESSIONID_LEN); | |
1675 | WRITE32(slot->seq_nr); | |
1676 | WRITE32(args->sa_slotid); | |
1677 | WRITE32(tp->highest_used_slotid); | |
1678 | WRITE32(args->sa_cache_this); | |
9b7b9fcc AA |
1679 | hdr->nops++; |
1680 | hdr->replen += decode_sequence_maxsz; | |
1681 | #endif /* CONFIG_NFS_V4_1 */ | |
1682 | } | |
1683 | ||
1da177e4 LT |
1684 | /* |
1685 | * END OF "GENERIC" ENCODE ROUTINES. | |
1686 | */ | |
1687 | ||
66cc0429 BH |
1688 | static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) |
1689 | { | |
1690 | #if defined(CONFIG_NFS_V4_1) | |
1691 | if (args->sa_session) | |
1692 | return args->sa_session->clp->cl_minorversion; | |
1693 | #endif /* CONFIG_NFS_V4_1 */ | |
1694 | return 0; | |
1695 | } | |
1696 | ||
1da177e4 LT |
1697 | /* |
1698 | * Encode an ACCESS request | |
1699 | */ | |
8687b63a | 1700 | static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) |
1da177e4 LT |
1701 | { |
1702 | struct xdr_stream xdr; | |
1703 | struct compound_hdr hdr = { | |
66cc0429 | 1704 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1705 | }; |
1da177e4 LT |
1706 | |
1707 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1708 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1709 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1710 | encode_putfh(&xdr, args->fh, &hdr); |
1711 | encode_access(&xdr, args->access, &hdr); | |
1712 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1713 | encode_nops(&hdr); |
cf8cdbe5 | 1714 | return 0; |
1da177e4 LT |
1715 | } |
1716 | ||
1717 | /* | |
1718 | * Encode LOOKUP request | |
1719 | */ | |
8687b63a | 1720 | static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) |
1da177e4 LT |
1721 | { |
1722 | struct xdr_stream xdr; | |
1723 | struct compound_hdr hdr = { | |
66cc0429 | 1724 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1725 | }; |
1da177e4 LT |
1726 | |
1727 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1728 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1729 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1730 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1731 | encode_lookup(&xdr, args->name, &hdr); | |
1732 | encode_getfh(&xdr, &hdr); | |
1733 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1734 | encode_nops(&hdr); |
cf8cdbe5 | 1735 | return 0; |
1da177e4 LT |
1736 | } |
1737 | ||
1738 | /* | |
1739 | * Encode LOOKUP_ROOT request | |
1740 | */ | |
8687b63a | 1741 | static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) |
1da177e4 LT |
1742 | { |
1743 | struct xdr_stream xdr; | |
1744 | struct compound_hdr hdr = { | |
66cc0429 | 1745 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1746 | }; |
1da177e4 LT |
1747 | |
1748 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1749 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1750 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1751 | encode_putrootfh(&xdr, &hdr); |
1752 | encode_getfh(&xdr, &hdr); | |
1753 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1754 | encode_nops(&hdr); |
cf8cdbe5 | 1755 | return 0; |
1da177e4 LT |
1756 | } |
1757 | ||
1758 | /* | |
1759 | * Encode REMOVE request | |
1760 | */ | |
4fdc17b2 | 1761 | static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) |
1da177e4 LT |
1762 | { |
1763 | struct xdr_stream xdr; | |
1764 | struct compound_hdr hdr = { | |
66cc0429 | 1765 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1766 | }; |
1da177e4 LT |
1767 | |
1768 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1769 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1770 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1771 | encode_putfh(&xdr, args->fh, &hdr); |
1772 | encode_remove(&xdr, &args->name, &hdr); | |
1773 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1774 | encode_nops(&hdr); |
cf8cdbe5 | 1775 | return 0; |
1da177e4 LT |
1776 | } |
1777 | ||
1778 | /* | |
1779 | * Encode RENAME request | |
1780 | */ | |
8687b63a | 1781 | static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) |
1da177e4 LT |
1782 | { |
1783 | struct xdr_stream xdr; | |
1784 | struct compound_hdr hdr = { | |
66cc0429 | 1785 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1786 | }; |
1da177e4 LT |
1787 | |
1788 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1789 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1790 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1791 | encode_putfh(&xdr, args->old_dir, &hdr); |
1792 | encode_savefh(&xdr, &hdr); | |
1793 | encode_putfh(&xdr, args->new_dir, &hdr); | |
1794 | encode_rename(&xdr, args->old_name, args->new_name, &hdr); | |
1795 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1796 | encode_restorefh(&xdr, &hdr); | |
1797 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1798 | encode_nops(&hdr); |
cf8cdbe5 | 1799 | return 0; |
1da177e4 LT |
1800 | } |
1801 | ||
1802 | /* | |
1803 | * Encode LINK request | |
1804 | */ | |
8687b63a | 1805 | static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) |
1da177e4 LT |
1806 | { |
1807 | struct xdr_stream xdr; | |
1808 | struct compound_hdr hdr = { | |
66cc0429 | 1809 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1810 | }; |
1da177e4 LT |
1811 | |
1812 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1813 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1814 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1815 | encode_putfh(&xdr, args->fh, &hdr); |
1816 | encode_savefh(&xdr, &hdr); | |
1817 | encode_putfh(&xdr, args->dir_fh, &hdr); | |
1818 | encode_link(&xdr, args->name, &hdr); | |
1819 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1820 | encode_restorefh(&xdr, &hdr); | |
1821 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1822 | encode_nops(&hdr); |
cf8cdbe5 | 1823 | return 0; |
1da177e4 LT |
1824 | } |
1825 | ||
1826 | /* | |
1827 | * Encode CREATE request | |
1828 | */ | |
8687b63a | 1829 | static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1830 | { |
1831 | struct xdr_stream xdr; | |
1832 | struct compound_hdr hdr = { | |
66cc0429 | 1833 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1834 | }; |
1da177e4 LT |
1835 | |
1836 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1837 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1838 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1839 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1840 | encode_savefh(&xdr, &hdr); | |
1841 | encode_create(&xdr, args, &hdr); | |
1842 | encode_getfh(&xdr, &hdr); | |
1843 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1844 | encode_restorefh(&xdr, &hdr); | |
1845 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1846 | encode_nops(&hdr); |
cf8cdbe5 | 1847 | return 0; |
1da177e4 LT |
1848 | } |
1849 | ||
1850 | /* | |
1851 | * Encode SYMLINK request | |
1852 | */ | |
8687b63a | 1853 | static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1854 | { |
1855 | return nfs4_xdr_enc_create(req, p, args); | |
1856 | } | |
1857 | ||
1858 | /* | |
1859 | * Encode GETATTR request | |
1860 | */ | |
8687b63a | 1861 | static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) |
1da177e4 LT |
1862 | { |
1863 | struct xdr_stream xdr; | |
1864 | struct compound_hdr hdr = { | |
66cc0429 | 1865 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1866 | }; |
1da177e4 LT |
1867 | |
1868 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1869 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1870 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1871 | encode_putfh(&xdr, args->fh, &hdr); |
1872 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1873 | encode_nops(&hdr); |
cf8cdbe5 | 1874 | return 0; |
1da177e4 LT |
1875 | } |
1876 | ||
1877 | /* | |
1878 | * Encode a CLOSE request | |
1879 | */ | |
8687b63a | 1880 | static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 | 1881 | { |
05d564fe AA |
1882 | struct xdr_stream xdr; |
1883 | struct compound_hdr hdr = { | |
66cc0429 | 1884 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 1885 | }; |
05d564fe AA |
1886 | |
1887 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1888 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1889 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1890 | encode_putfh(&xdr, args->fh, &hdr); |
1891 | encode_close(&xdr, args, &hdr); | |
1892 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1893 | encode_nops(&hdr); |
cf8cdbe5 | 1894 | return 0; |
1da177e4 LT |
1895 | } |
1896 | ||
1897 | /* | |
1898 | * Encode an OPEN request | |
1899 | */ | |
8687b63a | 1900 | static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1901 | { |
1902 | struct xdr_stream xdr; | |
1903 | struct compound_hdr hdr = { | |
66cc0429 | 1904 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1905 | }; |
1da177e4 LT |
1906 | |
1907 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1908 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1909 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1910 | encode_putfh(&xdr, args->fh, &hdr); |
1911 | encode_savefh(&xdr, &hdr); | |
1912 | encode_open(&xdr, args, &hdr); | |
1913 | encode_getfh(&xdr, &hdr); | |
1914 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1915 | encode_restorefh(&xdr, &hdr); | |
1916 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1917 | encode_nops(&hdr); |
cf8cdbe5 | 1918 | return 0; |
1da177e4 LT |
1919 | } |
1920 | ||
1921 | /* | |
1922 | * Encode an OPEN_CONFIRM request | |
1923 | */ | |
8687b63a | 1924 | static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) |
1da177e4 LT |
1925 | { |
1926 | struct xdr_stream xdr; | |
1927 | struct compound_hdr hdr = { | |
d017931c | 1928 | .nops = 0, |
1da177e4 | 1929 | }; |
1da177e4 LT |
1930 | |
1931 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1932 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1933 | encode_putfh(&xdr, args->fh, &hdr); |
1934 | encode_open_confirm(&xdr, args, &hdr); | |
d017931c | 1935 | encode_nops(&hdr); |
cf8cdbe5 | 1936 | return 0; |
1da177e4 LT |
1937 | } |
1938 | ||
1939 | /* | |
1940 | * Encode an OPEN request with no attributes. | |
1941 | */ | |
8687b63a | 1942 | static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1943 | { |
1944 | struct xdr_stream xdr; | |
1945 | struct compound_hdr hdr = { | |
66cc0429 | 1946 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1947 | }; |
1da177e4 LT |
1948 | |
1949 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1950 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1951 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1952 | encode_putfh(&xdr, args->fh, &hdr); |
1953 | encode_open(&xdr, args, &hdr); | |
1954 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1955 | encode_nops(&hdr); |
cf8cdbe5 | 1956 | return 0; |
1da177e4 LT |
1957 | } |
1958 | ||
1959 | /* | |
1960 | * Encode an OPEN_DOWNGRADE request | |
1961 | */ | |
8687b63a | 1962 | static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 LT |
1963 | { |
1964 | struct xdr_stream xdr; | |
1965 | struct compound_hdr hdr = { | |
66cc0429 | 1966 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1967 | }; |
1da177e4 LT |
1968 | |
1969 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1970 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1971 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1972 | encode_putfh(&xdr, args->fh, &hdr); |
1973 | encode_open_downgrade(&xdr, args, &hdr); | |
1974 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1975 | encode_nops(&hdr); |
cf8cdbe5 | 1976 | return 0; |
1da177e4 LT |
1977 | } |
1978 | ||
1979 | /* | |
1980 | * Encode a LOCK request | |
1981 | */ | |
8687b63a | 1982 | static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) |
1da177e4 LT |
1983 | { |
1984 | struct xdr_stream xdr; | |
1985 | struct compound_hdr hdr = { | |
66cc0429 | 1986 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1987 | }; |
1da177e4 LT |
1988 | |
1989 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1990 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1991 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1992 | encode_putfh(&xdr, args->fh, &hdr); |
1993 | encode_lock(&xdr, args, &hdr); | |
d017931c | 1994 | encode_nops(&hdr); |
cf8cdbe5 | 1995 | return 0; |
1da177e4 LT |
1996 | } |
1997 | ||
1998 | /* | |
1999 | * Encode a LOCKT request | |
2000 | */ | |
8687b63a | 2001 | static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) |
1da177e4 LT |
2002 | { |
2003 | struct xdr_stream xdr; | |
2004 | struct compound_hdr hdr = { | |
66cc0429 | 2005 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2006 | }; |
1da177e4 LT |
2007 | |
2008 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2009 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2010 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2011 | encode_putfh(&xdr, args->fh, &hdr); |
2012 | encode_lockt(&xdr, args, &hdr); | |
d017931c | 2013 | encode_nops(&hdr); |
cf8cdbe5 | 2014 | return 0; |
1da177e4 LT |
2015 | } |
2016 | ||
2017 | /* | |
2018 | * Encode a LOCKU request | |
2019 | */ | |
8687b63a | 2020 | static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) |
1da177e4 LT |
2021 | { |
2022 | struct xdr_stream xdr; | |
2023 | struct compound_hdr hdr = { | |
66cc0429 | 2024 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2025 | }; |
1da177e4 LT |
2026 | |
2027 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2028 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2029 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2030 | encode_putfh(&xdr, args->fh, &hdr); |
2031 | encode_locku(&xdr, args, &hdr); | |
d017931c | 2032 | encode_nops(&hdr); |
cf8cdbe5 | 2033 | return 0; |
1da177e4 LT |
2034 | } |
2035 | ||
2036 | /* | |
2037 | * Encode a READLINK request | |
2038 | */ | |
8687b63a | 2039 | static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) |
1da177e4 LT |
2040 | { |
2041 | struct xdr_stream xdr; | |
2042 | struct compound_hdr hdr = { | |
66cc0429 | 2043 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2044 | }; |
1da177e4 LT |
2045 | |
2046 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2047 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2048 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2049 | encode_putfh(&xdr, args->fh, &hdr); |
2050 | encode_readlink(&xdr, args, req, &hdr); | |
e3a535e1 | 2051 | |
28f56694 | 2052 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
e3a535e1 | 2053 | args->pgbase, args->pglen); |
d017931c | 2054 | encode_nops(&hdr); |
cf8cdbe5 | 2055 | return 0; |
1da177e4 LT |
2056 | } |
2057 | ||
2058 | /* | |
2059 | * Encode a READDIR request | |
2060 | */ | |
8687b63a | 2061 | static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) |
1da177e4 LT |
2062 | { |
2063 | struct xdr_stream xdr; | |
2064 | struct compound_hdr hdr = { | |
66cc0429 | 2065 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2066 | }; |
1da177e4 LT |
2067 | |
2068 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2069 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2070 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2071 | encode_putfh(&xdr, args->fh, &hdr); |
2072 | encode_readdir(&xdr, args, req, &hdr); | |
d6ac02df | 2073 | |
28f56694 | 2074 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
d6ac02df TM |
2075 | args->pgbase, args->count); |
2076 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", | |
28f56694 | 2077 | __func__, hdr.replen << 2, args->pages, |
d6ac02df | 2078 | args->pgbase, args->count); |
d017931c | 2079 | encode_nops(&hdr); |
cf8cdbe5 | 2080 | return 0; |
1da177e4 LT |
2081 | } |
2082 | ||
2083 | /* | |
2084 | * Encode a READ request | |
2085 | */ | |
8687b63a | 2086 | static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) |
1da177e4 | 2087 | { |
1da177e4 LT |
2088 | struct xdr_stream xdr; |
2089 | struct compound_hdr hdr = { | |
66cc0429 | 2090 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2091 | }; |
1da177e4 LT |
2092 | |
2093 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2094 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2095 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2096 | encode_putfh(&xdr, args->fh, &hdr); |
2097 | encode_read(&xdr, args, &hdr); | |
1da177e4 | 2098 | |
28f56694 | 2099 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, |
1da177e4 | 2100 | args->pages, args->pgbase, args->count); |
4f22ccc3 | 2101 | req->rq_rcv_buf.flags |= XDRBUF_READ; |
d017931c | 2102 | encode_nops(&hdr); |
cf8cdbe5 | 2103 | return 0; |
1da177e4 LT |
2104 | } |
2105 | ||
2106 | /* | |
2107 | * Encode an SETATTR request | |
2108 | */ | |
8687b63a | 2109 | static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) |
1da177e4 | 2110 | { |
05d564fe AA |
2111 | struct xdr_stream xdr; |
2112 | struct compound_hdr hdr = { | |
66cc0429 | 2113 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 2114 | }; |
05d564fe AA |
2115 | |
2116 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2117 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2118 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2119 | encode_putfh(&xdr, args->fh, &hdr); |
2120 | encode_setattr(&xdr, args, args->server, &hdr); | |
2121 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2122 | encode_nops(&hdr); |
cf8cdbe5 | 2123 | return 0; |
1da177e4 LT |
2124 | } |
2125 | ||
029d105e BF |
2126 | /* |
2127 | * Encode a GETACL request | |
2128 | */ | |
2129 | static int | |
8687b63a | 2130 | nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, |
029d105e BF |
2131 | struct nfs_getaclargs *args) |
2132 | { | |
2133 | struct xdr_stream xdr; | |
029d105e | 2134 | struct compound_hdr hdr = { |
66cc0429 | 2135 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
029d105e | 2136 | }; |
28f56694 | 2137 | uint32_t replen; |
029d105e BF |
2138 | |
2139 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2140 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2141 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 | 2142 | encode_putfh(&xdr, args->fh, &hdr); |
28f56694 | 2143 | replen = hdr.replen + nfs4_fattr_bitmap_maxsz + 1; |
cf8cdbe5 AA |
2144 | encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); |
2145 | ||
28f56694 | 2146 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, |
029d105e | 2147 | args->acl_pages, args->acl_pgbase, args->acl_len); |
d017931c | 2148 | encode_nops(&hdr); |
cf8cdbe5 | 2149 | return 0; |
029d105e BF |
2150 | } |
2151 | ||
1da177e4 LT |
2152 | /* |
2153 | * Encode a WRITE request | |
2154 | */ | |
8687b63a | 2155 | static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
2156 | { |
2157 | struct xdr_stream xdr; | |
2158 | struct compound_hdr hdr = { | |
66cc0429 | 2159 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2160 | }; |
1da177e4 LT |
2161 | |
2162 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2163 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2164 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2165 | encode_putfh(&xdr, args->fh, &hdr); |
2166 | encode_write(&xdr, args, &hdr); | |
4f22ccc3 | 2167 | req->rq_snd_buf.flags |= XDRBUF_WRITE; |
cf8cdbe5 | 2168 | encode_getfattr(&xdr, args->bitmask, &hdr); |
d017931c | 2169 | encode_nops(&hdr); |
cf8cdbe5 | 2170 | return 0; |
1da177e4 LT |
2171 | } |
2172 | ||
2173 | /* | |
2174 | * a COMMIT request | |
2175 | */ | |
8687b63a | 2176 | static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
2177 | { |
2178 | struct xdr_stream xdr; | |
2179 | struct compound_hdr hdr = { | |
66cc0429 | 2180 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2181 | }; |
1da177e4 LT |
2182 | |
2183 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2184 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2185 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2186 | encode_putfh(&xdr, args->fh, &hdr); |
2187 | encode_commit(&xdr, args, &hdr); | |
2188 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2189 | encode_nops(&hdr); |
cf8cdbe5 | 2190 | return 0; |
1da177e4 LT |
2191 | } |
2192 | ||
2193 | /* | |
2194 | * FSINFO request | |
2195 | */ | |
8687b63a | 2196 | static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) |
1da177e4 LT |
2197 | { |
2198 | struct xdr_stream xdr; | |
2199 | struct compound_hdr hdr = { | |
66cc0429 | 2200 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2201 | }; |
1da177e4 LT |
2202 | |
2203 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2204 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2205 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2206 | encode_putfh(&xdr, args->fh, &hdr); |
2207 | encode_fsinfo(&xdr, args->bitmask, &hdr); | |
d017931c | 2208 | encode_nops(&hdr); |
cf8cdbe5 | 2209 | return 0; |
1da177e4 LT |
2210 | } |
2211 | ||
2212 | /* | |
2213 | * a PATHCONF request | |
2214 | */ | |
8687b63a | 2215 | static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) |
1da177e4 | 2216 | { |
1da177e4 LT |
2217 | struct xdr_stream xdr; |
2218 | struct compound_hdr hdr = { | |
66cc0429 | 2219 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2220 | }; |
1da177e4 LT |
2221 | |
2222 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2223 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2224 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2225 | encode_putfh(&xdr, args->fh, &hdr); |
2226 | encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], | |
2227 | &hdr); | |
d017931c | 2228 | encode_nops(&hdr); |
cf8cdbe5 | 2229 | return 0; |
1da177e4 LT |
2230 | } |
2231 | ||
2232 | /* | |
2233 | * a STATFS request | |
2234 | */ | |
8687b63a | 2235 | static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) |
1da177e4 | 2236 | { |
1da177e4 LT |
2237 | struct xdr_stream xdr; |
2238 | struct compound_hdr hdr = { | |
66cc0429 | 2239 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2240 | }; |
1da177e4 LT |
2241 | |
2242 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2243 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2244 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2245 | encode_putfh(&xdr, args->fh, &hdr); |
2246 | encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], | |
2247 | args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); | |
d017931c | 2248 | encode_nops(&hdr); |
cf8cdbe5 | 2249 | return 0; |
1da177e4 LT |
2250 | } |
2251 | ||
2252 | /* | |
2253 | * GETATTR_BITMAP request | |
2254 | */ | |
43652ad5 BH |
2255 | static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, |
2256 | struct nfs4_server_caps_arg *args) | |
1da177e4 LT |
2257 | { |
2258 | struct xdr_stream xdr; | |
2259 | struct compound_hdr hdr = { | |
66cc0429 | 2260 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2261 | }; |
1da177e4 LT |
2262 | |
2263 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2264 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2265 | encode_sequence(&xdr, &args->seq_args, &hdr); |
43652ad5 | 2266 | encode_putfh(&xdr, args->fhandle, &hdr); |
cf8cdbe5 AA |
2267 | encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| |
2268 | FATTR4_WORD0_LINK_SUPPORT| | |
2269 | FATTR4_WORD0_SYMLINK_SUPPORT| | |
2270 | FATTR4_WORD0_ACLSUPPORT, &hdr); | |
d017931c | 2271 | encode_nops(&hdr); |
cf8cdbe5 | 2272 | return 0; |
1da177e4 LT |
2273 | } |
2274 | ||
2275 | /* | |
2276 | * a RENEW request | |
2277 | */ | |
8687b63a | 2278 | static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2279 | { |
2280 | struct xdr_stream xdr; | |
2281 | struct compound_hdr hdr = { | |
d017931c | 2282 | .nops = 0, |
1da177e4 LT |
2283 | }; |
2284 | ||
2285 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2286 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 2287 | encode_renew(&xdr, clp, &hdr); |
d017931c | 2288 | encode_nops(&hdr); |
cf8cdbe5 | 2289 | return 0; |
1da177e4 LT |
2290 | } |
2291 | ||
2292 | /* | |
2293 | * a SETCLIENTID request | |
2294 | */ | |
8687b63a | 2295 | static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) |
1da177e4 LT |
2296 | { |
2297 | struct xdr_stream xdr; | |
2298 | struct compound_hdr hdr = { | |
d017931c | 2299 | .nops = 0, |
1da177e4 LT |
2300 | }; |
2301 | ||
2302 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2303 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 2304 | encode_setclientid(&xdr, sc, &hdr); |
d017931c | 2305 | encode_nops(&hdr); |
cf8cdbe5 | 2306 | return 0; |
1da177e4 LT |
2307 | } |
2308 | ||
2309 | /* | |
2310 | * a SETCLIENTID_CONFIRM request | |
2311 | */ | |
8687b63a | 2312 | static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2313 | { |
2314 | struct xdr_stream xdr; | |
2315 | struct compound_hdr hdr = { | |
d017931c | 2316 | .nops = 0, |
1da177e4 LT |
2317 | }; |
2318 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
1da177e4 LT |
2319 | |
2320 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2321 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
2322 | encode_setclientid_confirm(&xdr, clp, &hdr); |
2323 | encode_putrootfh(&xdr, &hdr); | |
2324 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
d017931c | 2325 | encode_nops(&hdr); |
cf8cdbe5 | 2326 | return 0; |
1da177e4 LT |
2327 | } |
2328 | ||
2329 | /* | |
2330 | * DELEGRETURN request | |
2331 | */ | |
8687b63a | 2332 | static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) |
1da177e4 LT |
2333 | { |
2334 | struct xdr_stream xdr; | |
2335 | struct compound_hdr hdr = { | |
66cc0429 | 2336 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2337 | }; |
1da177e4 LT |
2338 | |
2339 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2340 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2341 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2342 | encode_putfh(&xdr, args->fhandle, &hdr); |
2343 | encode_delegreturn(&xdr, args->stateid, &hdr); | |
2344 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2345 | encode_nops(&hdr); |
cf8cdbe5 | 2346 | return 0; |
1da177e4 LT |
2347 | } |
2348 | ||
683b57b4 TM |
2349 | /* |
2350 | * Encode FS_LOCATIONS request | |
2351 | */ | |
8687b63a | 2352 | static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) |
683b57b4 TM |
2353 | { |
2354 | struct xdr_stream xdr; | |
2355 | struct compound_hdr hdr = { | |
66cc0429 | 2356 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
683b57b4 | 2357 | }; |
28f56694 | 2358 | uint32_t replen; |
683b57b4 TM |
2359 | |
2360 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2361 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2362 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2363 | encode_putfh(&xdr, args->dir_fh, &hdr); |
2364 | encode_lookup(&xdr, args->name, &hdr); | |
28f56694 | 2365 | replen = hdr.replen; /* get the attribute into args->page */ |
cf8cdbe5 AA |
2366 | encode_fs_locations(&xdr, args->bitmask, &hdr); |
2367 | ||
28f56694 | 2368 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, |
683b57b4 | 2369 | 0, PAGE_SIZE); |
d017931c | 2370 | encode_nops(&hdr); |
cf8cdbe5 | 2371 | return 0; |
683b57b4 TM |
2372 | } |
2373 | ||
99fe60d0 BH |
2374 | #if defined(CONFIG_NFS_V4_1) |
2375 | /* | |
2376 | * EXCHANGE_ID request | |
2377 | */ | |
2378 | static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, | |
2379 | struct nfs41_exchange_id_args *args) | |
2380 | { | |
2381 | struct xdr_stream xdr; | |
2382 | struct compound_hdr hdr = { | |
2383 | .minorversion = args->client->cl_minorversion, | |
2384 | }; | |
2385 | ||
2386 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2387 | encode_compound_hdr(&xdr, req, &hdr); | |
2388 | encode_exchange_id(&xdr, args, &hdr); | |
2389 | encode_nops(&hdr); | |
2390 | return 0; | |
2391 | } | |
2050f0cc | 2392 | |
fc931582 AA |
2393 | /* |
2394 | * a CREATE_SESSION request | |
2395 | */ | |
2396 | static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, | |
2397 | struct nfs41_create_session_args *args) | |
2398 | { | |
2399 | struct xdr_stream xdr; | |
2400 | struct compound_hdr hdr = { | |
2401 | .minorversion = args->client->cl_minorversion, | |
2402 | }; | |
2403 | ||
2404 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2405 | encode_compound_hdr(&xdr, req, &hdr); | |
2406 | encode_create_session(&xdr, args, &hdr); | |
2407 | encode_nops(&hdr); | |
2408 | return 0; | |
2409 | } | |
2410 | ||
0f3e66c6 AA |
2411 | /* |
2412 | * a DESTROY_SESSION request | |
2413 | */ | |
2414 | static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, | |
2415 | struct nfs4_session *session) | |
2416 | { | |
2417 | struct xdr_stream xdr; | |
2418 | struct compound_hdr hdr = { | |
2419 | .minorversion = session->clp->cl_minorversion, | |
2420 | }; | |
2421 | ||
2422 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2423 | encode_compound_hdr(&xdr, req, &hdr); | |
2424 | encode_destroy_session(&xdr, session, &hdr); | |
2425 | encode_nops(&hdr); | |
2426 | return 0; | |
2427 | } | |
2428 | ||
fc01cea9 AA |
2429 | /* |
2430 | * a SEQUENCE request | |
2431 | */ | |
2432 | static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, | |
2433 | struct nfs4_sequence_args *args) | |
2434 | { | |
2435 | struct xdr_stream xdr; | |
2436 | struct compound_hdr hdr = { | |
2437 | .minorversion = nfs4_xdr_minorversion(args), | |
2438 | }; | |
2439 | ||
2440 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2441 | encode_compound_hdr(&xdr, req, &hdr); | |
2442 | encode_sequence(&xdr, args, &hdr); | |
2443 | encode_nops(&hdr); | |
2444 | return 0; | |
2445 | } | |
2446 | ||
2050f0cc AA |
2447 | /* |
2448 | * a GET_LEASE_TIME request | |
2449 | */ | |
2450 | static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, | |
2451 | struct nfs4_get_lease_time_args *args) | |
2452 | { | |
2453 | struct xdr_stream xdr; | |
2454 | struct compound_hdr hdr = { | |
2455 | .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), | |
2456 | }; | |
2457 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
2458 | ||
2459 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2460 | encode_compound_hdr(&xdr, req, &hdr); | |
2461 | encode_sequence(&xdr, &args->la_seq_args, &hdr); | |
2462 | encode_putrootfh(&xdr, &hdr); | |
2463 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
2464 | encode_nops(&hdr); | |
2465 | return 0; | |
2466 | } | |
99fe60d0 BH |
2467 | #endif /* CONFIG_NFS_V4_1 */ |
2468 | ||
1da177e4 LT |
2469 | /* |
2470 | * START OF "GENERIC" DECODE ROUTINES. | |
2471 | * These may look a little ugly since they are imported from a "generic" | |
2472 | * set of XDR encode/decode routines which are intended to be shared by | |
2473 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
2474 | * | |
2475 | * If the pain of reading these is too great, it should be a straightforward | |
2476 | * task to translate them into Linux-specific versions which are more | |
2477 | * consistent with the style used in NFSv2/v3... | |
2478 | */ | |
2479 | #define READ32(x) (x) = ntohl(*p++) | |
2480 | #define READ64(x) do { \ | |
2481 | (x) = (u64)ntohl(*p++) << 32; \ | |
2482 | (x) |= ntohl(*p++); \ | |
2483 | } while (0) | |
2484 | #define READTIME(x) do { \ | |
2485 | p++; \ | |
2486 | (x.tv_sec) = ntohl(*p++); \ | |
2487 | (x.tv_nsec) = ntohl(*p++); \ | |
2488 | } while (0) | |
2489 | #define COPYMEM(x,nbytes) do { \ | |
2490 | memcpy((x), p, nbytes); \ | |
2491 | p += XDR_QUADLEN(nbytes); \ | |
2492 | } while (0) | |
2493 | ||
2494 | #define READ_BUF(nbytes) do { \ | |
2495 | p = xdr_inline_decode(xdr, nbytes); \ | |
e4cc6ee2 | 2496 | if (unlikely(!p)) { \ |
fe82a183 | 2497 | dprintk("nfs: %s: prematurely hit end of receive" \ |
3110ff80 | 2498 | " buffer\n", __func__); \ |
fe82a183 | 2499 | dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ |
3110ff80 | 2500 | __func__, xdr->p, nbytes, xdr->end); \ |
1da177e4 LT |
2501 | return -EIO; \ |
2502 | } \ | |
2503 | } while (0) | |
2504 | ||
683b57b4 | 2505 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
1da177e4 | 2506 | { |
8687b63a | 2507 | __be32 *p; |
1da177e4 LT |
2508 | |
2509 | READ_BUF(4); | |
2510 | READ32(*len); | |
2511 | READ_BUF(*len); | |
2512 | *string = (char *)p; | |
2513 | return 0; | |
2514 | } | |
2515 | ||
2516 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
2517 | { | |
8687b63a | 2518 | __be32 *p; |
1da177e4 LT |
2519 | |
2520 | READ_BUF(8); | |
2521 | READ32(hdr->status); | |
2522 | READ32(hdr->taglen); | |
6c0195a4 | 2523 | |
1da177e4 LT |
2524 | READ_BUF(hdr->taglen + 4); |
2525 | hdr->tag = (char *)p; | |
2526 | p += XDR_QUADLEN(hdr->taglen); | |
2527 | READ32(hdr->nops); | |
aadf6152 BH |
2528 | if (unlikely(hdr->nops < 1)) |
2529 | return nfs4_stat_to_errno(hdr->status); | |
1da177e4 LT |
2530 | return 0; |
2531 | } | |
2532 | ||
2533 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) | |
2534 | { | |
8687b63a | 2535 | __be32 *p; |
1da177e4 LT |
2536 | uint32_t opnum; |
2537 | int32_t nfserr; | |
2538 | ||
2539 | READ_BUF(8); | |
2540 | READ32(opnum); | |
2541 | if (opnum != expected) { | |
fe82a183 CL |
2542 | dprintk("nfs: Server returned operation" |
2543 | " %d but we issued a request for %d\n", | |
1da177e4 LT |
2544 | opnum, expected); |
2545 | return -EIO; | |
2546 | } | |
2547 | READ32(nfserr); | |
2548 | if (nfserr != NFS_OK) | |
856dff3d | 2549 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
2550 | return 0; |
2551 | } | |
2552 | ||
2553 | /* Dummy routine */ | |
adfa6f98 | 2554 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
1da177e4 | 2555 | { |
8687b63a | 2556 | __be32 *p; |
683b57b4 | 2557 | unsigned int strlen; |
1da177e4 LT |
2558 | char *str; |
2559 | ||
2560 | READ_BUF(12); | |
2561 | return decode_opaque_inline(xdr, &strlen, &str); | |
2562 | } | |
2563 | ||
2564 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) | |
2565 | { | |
8687b63a AV |
2566 | uint32_t bmlen; |
2567 | __be32 *p; | |
1da177e4 LT |
2568 | |
2569 | READ_BUF(4); | |
2570 | READ32(bmlen); | |
2571 | ||
2572 | bitmap[0] = bitmap[1] = 0; | |
2573 | READ_BUF((bmlen << 2)); | |
2574 | if (bmlen > 0) { | |
2575 | READ32(bitmap[0]); | |
2576 | if (bmlen > 1) | |
2577 | READ32(bitmap[1]); | |
2578 | } | |
2579 | return 0; | |
2580 | } | |
2581 | ||
8687b63a | 2582 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
1da177e4 | 2583 | { |
8687b63a | 2584 | __be32 *p; |
1da177e4 LT |
2585 | |
2586 | READ_BUF(4); | |
2587 | READ32(*attrlen); | |
2588 | *savep = xdr->p; | |
2589 | return 0; | |
2590 | } | |
2591 | ||
2592 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) | |
2593 | { | |
2594 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { | |
2595 | decode_attr_bitmap(xdr, bitmask); | |
2596 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; | |
2597 | } else | |
2598 | bitmask[0] = bitmask[1] = 0; | |
44109241 | 2599 | dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); |
1da177e4 LT |
2600 | return 0; |
2601 | } | |
2602 | ||
2603 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) | |
2604 | { | |
8687b63a | 2605 | __be32 *p; |
409924e4 | 2606 | int ret = 0; |
1da177e4 LT |
2607 | |
2608 | *type = 0; | |
2609 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) | |
2610 | return -EIO; | |
2611 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { | |
2612 | READ_BUF(4); | |
2613 | READ32(*type); | |
2614 | if (*type < NF4REG || *type > NF4NAMEDATTR) { | |
3110ff80 | 2615 | dprintk("%s: bad type %d\n", __func__, *type); |
1da177e4 LT |
2616 | return -EIO; |
2617 | } | |
2618 | bitmap[0] &= ~FATTR4_WORD0_TYPE; | |
409924e4 | 2619 | ret = NFS_ATTR_FATTR_TYPE; |
1da177e4 | 2620 | } |
bca79478 | 2621 | dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); |
409924e4 | 2622 | return ret; |
1da177e4 LT |
2623 | } |
2624 | ||
2625 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) | |
2626 | { | |
8687b63a | 2627 | __be32 *p; |
409924e4 | 2628 | int ret = 0; |
1da177e4 LT |
2629 | |
2630 | *change = 0; | |
2631 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) | |
2632 | return -EIO; | |
2633 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { | |
2634 | READ_BUF(8); | |
2635 | READ64(*change); | |
2636 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; | |
409924e4 | 2637 | ret = NFS_ATTR_FATTR_CHANGE; |
1da177e4 | 2638 | } |
3110ff80 | 2639 | dprintk("%s: change attribute=%Lu\n", __func__, |
1da177e4 | 2640 | (unsigned long long)*change); |
409924e4 | 2641 | return ret; |
1da177e4 LT |
2642 | } |
2643 | ||
2644 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) | |
2645 | { | |
8687b63a | 2646 | __be32 *p; |
409924e4 | 2647 | int ret = 0; |
1da177e4 LT |
2648 | |
2649 | *size = 0; | |
2650 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) | |
2651 | return -EIO; | |
2652 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { | |
2653 | READ_BUF(8); | |
2654 | READ64(*size); | |
2655 | bitmap[0] &= ~FATTR4_WORD0_SIZE; | |
409924e4 | 2656 | ret = NFS_ATTR_FATTR_SIZE; |
1da177e4 | 2657 | } |
3110ff80 | 2658 | dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); |
409924e4 | 2659 | return ret; |
1da177e4 LT |
2660 | } |
2661 | ||
2662 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2663 | { | |
8687b63a | 2664 | __be32 *p; |
1da177e4 LT |
2665 | |
2666 | *res = 0; | |
2667 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) | |
2668 | return -EIO; | |
2669 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { | |
2670 | READ_BUF(4); | |
2671 | READ32(*res); | |
2672 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; | |
2673 | } | |
3110ff80 | 2674 | dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2675 | return 0; |
2676 | } | |
2677 | ||
2678 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2679 | { | |
8687b63a | 2680 | __be32 *p; |
1da177e4 LT |
2681 | |
2682 | *res = 0; | |
2683 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) | |
2684 | return -EIO; | |
2685 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { | |
2686 | READ_BUF(4); | |
2687 | READ32(*res); | |
2688 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; | |
2689 | } | |
3110ff80 | 2690 | dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2691 | return 0; |
2692 | } | |
2693 | ||
8b4bdcf8 | 2694 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
1da177e4 | 2695 | { |
8687b63a | 2696 | __be32 *p; |
409924e4 | 2697 | int ret = 0; |
1da177e4 LT |
2698 | |
2699 | fsid->major = 0; | |
2700 | fsid->minor = 0; | |
2701 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) | |
2702 | return -EIO; | |
2703 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { | |
2704 | READ_BUF(16); | |
2705 | READ64(fsid->major); | |
2706 | READ64(fsid->minor); | |
2707 | bitmap[0] &= ~FATTR4_WORD0_FSID; | |
409924e4 | 2708 | ret = NFS_ATTR_FATTR_FSID; |
1da177e4 | 2709 | } |
3110ff80 | 2710 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, |
1da177e4 LT |
2711 | (unsigned long long)fsid->major, |
2712 | (unsigned long long)fsid->minor); | |
409924e4 | 2713 | return ret; |
1da177e4 LT |
2714 | } |
2715 | ||
2716 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2717 | { | |
8687b63a | 2718 | __be32 *p; |
1da177e4 LT |
2719 | |
2720 | *res = 60; | |
2721 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) | |
2722 | return -EIO; | |
2723 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { | |
2724 | READ_BUF(4); | |
2725 | READ32(*res); | |
2726 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; | |
2727 | } | |
3110ff80 | 2728 | dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2729 | return 0; |
2730 | } | |
2731 | ||
2732 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2733 | { | |
8687b63a | 2734 | __be32 *p; |
1da177e4 LT |
2735 | |
2736 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; | |
2737 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) | |
2738 | return -EIO; | |
2739 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { | |
2740 | READ_BUF(4); | |
2741 | READ32(*res); | |
2742 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; | |
2743 | } | |
3110ff80 | 2744 | dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2745 | return 0; |
2746 | } | |
2747 | ||
2748 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) | |
2749 | { | |
8687b63a | 2750 | __be32 *p; |
409924e4 | 2751 | int ret = 0; |
1da177e4 LT |
2752 | |
2753 | *fileid = 0; | |
2754 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) | |
2755 | return -EIO; | |
2756 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { | |
2757 | READ_BUF(8); | |
2758 | READ64(*fileid); | |
2759 | bitmap[0] &= ~FATTR4_WORD0_FILEID; | |
409924e4 | 2760 | ret = NFS_ATTR_FATTR_FILEID; |
1da177e4 | 2761 | } |
3110ff80 | 2762 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2763 | return ret; |
1da177e4 LT |
2764 | } |
2765 | ||
99baf625 MN |
2766 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
2767 | { | |
8687b63a | 2768 | __be32 *p; |
409924e4 | 2769 | int ret = 0; |
99baf625 MN |
2770 | |
2771 | *fileid = 0; | |
2772 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) | |
2773 | return -EIO; | |
2774 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { | |
2775 | READ_BUF(8); | |
2776 | READ64(*fileid); | |
2777 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
409924e4 | 2778 | ret = NFS_ATTR_FATTR_FILEID; |
99baf625 | 2779 | } |
3110ff80 | 2780 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2781 | return ret; |
99baf625 MN |
2782 | } |
2783 | ||
1da177e4 LT |
2784 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2785 | { | |
8687b63a | 2786 | __be32 *p; |
1da177e4 LT |
2787 | int status = 0; |
2788 | ||
2789 | *res = 0; | |
2790 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) | |
2791 | return -EIO; | |
2792 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { | |
2793 | READ_BUF(8); | |
2794 | READ64(*res); | |
2795 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; | |
2796 | } | |
3110ff80 | 2797 | dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2798 | return status; |
2799 | } | |
2800 | ||
2801 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2802 | { | |
8687b63a | 2803 | __be32 *p; |
1da177e4 LT |
2804 | int status = 0; |
2805 | ||
2806 | *res = 0; | |
2807 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) | |
2808 | return -EIO; | |
2809 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { | |
2810 | READ_BUF(8); | |
2811 | READ64(*res); | |
2812 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; | |
2813 | } | |
3110ff80 | 2814 | dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2815 | return status; |
2816 | } | |
2817 | ||
2818 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2819 | { | |
8687b63a | 2820 | __be32 *p; |
1da177e4 LT |
2821 | int status = 0; |
2822 | ||
2823 | *res = 0; | |
2824 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) | |
2825 | return -EIO; | |
2826 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { | |
2827 | READ_BUF(8); | |
2828 | READ64(*res); | |
2829 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; | |
2830 | } | |
3110ff80 | 2831 | dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2832 | return status; |
2833 | } | |
2834 | ||
7aaa0b3b MN |
2835 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
2836 | { | |
464ad6b1 | 2837 | u32 n; |
8687b63a | 2838 | __be32 *p; |
7aaa0b3b MN |
2839 | int status = 0; |
2840 | ||
2841 | READ_BUF(4); | |
2842 | READ32(n); | |
33a43f28 AA |
2843 | if (n == 0) |
2844 | goto root_path; | |
7aaa0b3b MN |
2845 | dprintk("path "); |
2846 | path->ncomponents = 0; | |
2847 | while (path->ncomponents < n) { | |
2848 | struct nfs4_string *component = &path->components[path->ncomponents]; | |
2849 | status = decode_opaque_inline(xdr, &component->len, &component->data); | |
2850 | if (unlikely(status != 0)) | |
2851 | goto out_eio; | |
2852 | if (path->ncomponents != n) | |
2853 | dprintk("/"); | |
2854 | dprintk("%s", component->data); | |
2855 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) | |
2856 | path->ncomponents++; | |
2857 | else { | |
2858 | dprintk("cannot parse %d components in path\n", n); | |
2859 | goto out_eio; | |
2860 | } | |
2861 | } | |
2862 | out: | |
2863 | dprintk("\n"); | |
2864 | return status; | |
33a43f28 AA |
2865 | root_path: |
2866 | /* a root pathname is sent as a zero component4 */ | |
2867 | path->ncomponents = 1; | |
2868 | path->components[0].len=0; | |
2869 | path->components[0].data=NULL; | |
2870 | dprintk("path /\n"); | |
2871 | goto out; | |
7aaa0b3b MN |
2872 | out_eio: |
2873 | dprintk(" status %d", status); | |
2874 | status = -EIO; | |
2875 | goto out; | |
2876 | } | |
2877 | ||
2878 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) | |
683b57b4 TM |
2879 | { |
2880 | int n; | |
8687b63a | 2881 | __be32 *p; |
683b57b4 TM |
2882 | int status = -EIO; |
2883 | ||
2884 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) | |
2885 | goto out; | |
2886 | status = 0; | |
2887 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) | |
2888 | goto out; | |
3110ff80 | 2889 | dprintk("%s: fsroot ", __func__); |
7aaa0b3b | 2890 | status = decode_pathname(xdr, &res->fs_path); |
683b57b4 TM |
2891 | if (unlikely(status != 0)) |
2892 | goto out; | |
2893 | READ_BUF(4); | |
2894 | READ32(n); | |
2895 | if (n <= 0) | |
2896 | goto out_eio; | |
2897 | res->nlocations = 0; | |
2898 | while (res->nlocations < n) { | |
464ad6b1 | 2899 | u32 m; |
7aaa0b3b | 2900 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; |
683b57b4 | 2901 | |
7aaa0b3b MN |
2902 | READ_BUF(4); |
2903 | READ32(m); | |
7aaa0b3b MN |
2904 | |
2905 | loc->nservers = 0; | |
3110ff80 | 2906 | dprintk("%s: servers ", __func__); |
7aaa0b3b MN |
2907 | while (loc->nservers < m) { |
2908 | struct nfs4_string *server = &loc->servers[loc->nservers]; | |
2909 | status = decode_opaque_inline(xdr, &server->len, &server->data); | |
2910 | if (unlikely(status != 0)) | |
2911 | goto out_eio; | |
2912 | dprintk("%s ", server->data); | |
2913 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) | |
2914 | loc->nservers++; | |
2915 | else { | |
464ad6b1 CL |
2916 | unsigned int i; |
2917 | dprintk("%s: using first %u of %u servers " | |
2918 | "returned for location %u\n", | |
3110ff80 | 2919 | __func__, |
464ad6b1 CL |
2920 | NFS4_FS_LOCATION_MAXSERVERS, |
2921 | m, res->nlocations); | |
7aaa0b3b | 2922 | for (i = loc->nservers; i < m; i++) { |
2e42c3e2 | 2923 | unsigned int len; |
7aaa0b3b MN |
2924 | char *data; |
2925 | status = decode_opaque_inline(xdr, &len, &data); | |
2926 | if (unlikely(status != 0)) | |
2927 | goto out_eio; | |
2928 | } | |
2929 | } | |
2930 | } | |
2931 | status = decode_pathname(xdr, &loc->rootpath); | |
683b57b4 TM |
2932 | if (unlikely(status != 0)) |
2933 | goto out_eio; | |
7aaa0b3b | 2934 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
683b57b4 TM |
2935 | res->nlocations++; |
2936 | } | |
409924e4 TM |
2937 | if (res->nlocations != 0) |
2938 | status = NFS_ATTR_FATTR_V4_REFERRAL; | |
683b57b4 | 2939 | out: |
3110ff80 | 2940 | dprintk("%s: fs_locations done, error = %d\n", __func__, status); |
683b57b4 TM |
2941 | return status; |
2942 | out_eio: | |
2943 | status = -EIO; | |
2944 | goto out; | |
2945 | } | |
2946 | ||
1da177e4 LT |
2947 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2948 | { | |
8687b63a | 2949 | __be32 *p; |
1da177e4 LT |
2950 | int status = 0; |
2951 | ||
2952 | *res = 0; | |
2953 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) | |
2954 | return -EIO; | |
2955 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { | |
2956 | READ_BUF(8); | |
2957 | READ64(*res); | |
2958 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; | |
2959 | } | |
3110ff80 | 2960 | dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2961 | return status; |
2962 | } | |
2963 | ||
2964 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) | |
2965 | { | |
8687b63a | 2966 | __be32 *p; |
1da177e4 LT |
2967 | int status = 0; |
2968 | ||
2969 | *maxlink = 1; | |
2970 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) | |
2971 | return -EIO; | |
2972 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { | |
2973 | READ_BUF(4); | |
2974 | READ32(*maxlink); | |
2975 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; | |
2976 | } | |
3110ff80 | 2977 | dprintk("%s: maxlink=%u\n", __func__, *maxlink); |
1da177e4 LT |
2978 | return status; |
2979 | } | |
2980 | ||
2981 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) | |
2982 | { | |
8687b63a | 2983 | __be32 *p; |
1da177e4 LT |
2984 | int status = 0; |
2985 | ||
2986 | *maxname = 1024; | |
2987 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) | |
2988 | return -EIO; | |
2989 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { | |
2990 | READ_BUF(4); | |
2991 | READ32(*maxname); | |
2992 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; | |
2993 | } | |
3110ff80 | 2994 | dprintk("%s: maxname=%u\n", __func__, *maxname); |
1da177e4 LT |
2995 | return status; |
2996 | } | |
2997 | ||
2998 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2999 | { | |
8687b63a | 3000 | __be32 *p; |
1da177e4 LT |
3001 | int status = 0; |
3002 | ||
3003 | *res = 1024; | |
3004 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) | |
3005 | return -EIO; | |
3006 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { | |
3007 | uint64_t maxread; | |
3008 | READ_BUF(8); | |
3009 | READ64(maxread); | |
3010 | if (maxread > 0x7FFFFFFF) | |
3011 | maxread = 0x7FFFFFFF; | |
3012 | *res = (uint32_t)maxread; | |
3013 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; | |
3014 | } | |
3110ff80 | 3015 | dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
3016 | return status; |
3017 | } | |
3018 | ||
3019 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
3020 | { | |
8687b63a | 3021 | __be32 *p; |
1da177e4 LT |
3022 | int status = 0; |
3023 | ||
3024 | *res = 1024; | |
3025 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) | |
3026 | return -EIO; | |
3027 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { | |
3028 | uint64_t maxwrite; | |
3029 | READ_BUF(8); | |
3030 | READ64(maxwrite); | |
3031 | if (maxwrite > 0x7FFFFFFF) | |
3032 | maxwrite = 0x7FFFFFFF; | |
3033 | *res = (uint32_t)maxwrite; | |
3034 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; | |
3035 | } | |
3110ff80 | 3036 | dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
3037 | return status; |
3038 | } | |
3039 | ||
bca79478 | 3040 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) |
1da177e4 | 3041 | { |
bca79478 | 3042 | uint32_t tmp; |
8687b63a | 3043 | __be32 *p; |
409924e4 | 3044 | int ret = 0; |
1da177e4 LT |
3045 | |
3046 | *mode = 0; | |
3047 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) | |
3048 | return -EIO; | |
3049 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { | |
3050 | READ_BUF(4); | |
bca79478 TM |
3051 | READ32(tmp); |
3052 | *mode = tmp & ~S_IFMT; | |
1da177e4 | 3053 | bitmap[1] &= ~FATTR4_WORD1_MODE; |
409924e4 | 3054 | ret = NFS_ATTR_FATTR_MODE; |
1da177e4 | 3055 | } |
3110ff80 | 3056 | dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); |
409924e4 | 3057 | return ret; |
1da177e4 LT |
3058 | } |
3059 | ||
3060 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) | |
3061 | { | |
8687b63a | 3062 | __be32 *p; |
409924e4 | 3063 | int ret = 0; |
1da177e4 LT |
3064 | |
3065 | *nlink = 1; | |
3066 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) | |
3067 | return -EIO; | |
3068 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { | |
3069 | READ_BUF(4); | |
3070 | READ32(*nlink); | |
3071 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; | |
409924e4 | 3072 | ret = NFS_ATTR_FATTR_NLINK; |
1da177e4 | 3073 | } |
3110ff80 | 3074 | dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); |
409924e4 | 3075 | return ret; |
1da177e4 LT |
3076 | } |
3077 | ||
2e42c3e2 | 3078 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) |
1da177e4 | 3079 | { |
8687b63a AV |
3080 | uint32_t len; |
3081 | __be32 *p; | |
409924e4 | 3082 | int ret = 0; |
1da177e4 LT |
3083 | |
3084 | *uid = -2; | |
3085 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) | |
3086 | return -EIO; | |
3087 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { | |
3088 | READ_BUF(4); | |
3089 | READ32(len); | |
3090 | READ_BUF(len); | |
3091 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
3092 | if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) |
3093 | ret = NFS_ATTR_FATTR_OWNER; | |
3094 | else | |
1da177e4 | 3095 | dprintk("%s: nfs_map_name_to_uid failed!\n", |
3110ff80 | 3096 | __func__); |
1da177e4 | 3097 | } else |
fe82a183 | 3098 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3099 | __func__, len); |
1da177e4 LT |
3100 | bitmap[1] &= ~FATTR4_WORD1_OWNER; |
3101 | } | |
3110ff80 | 3102 | dprintk("%s: uid=%d\n", __func__, (int)*uid); |
409924e4 | 3103 | return ret; |
1da177e4 LT |
3104 | } |
3105 | ||
2e42c3e2 | 3106 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) |
1da177e4 | 3107 | { |
8687b63a AV |
3108 | uint32_t len; |
3109 | __be32 *p; | |
409924e4 | 3110 | int ret = 0; |
1da177e4 LT |
3111 | |
3112 | *gid = -2; | |
3113 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) | |
3114 | return -EIO; | |
3115 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { | |
3116 | READ_BUF(4); | |
3117 | READ32(len); | |
3118 | READ_BUF(len); | |
3119 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
3120 | if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) |
3121 | ret = NFS_ATTR_FATTR_GROUP; | |
3122 | else | |
1da177e4 | 3123 | dprintk("%s: nfs_map_group_to_gid failed!\n", |
3110ff80 | 3124 | __func__); |
1da177e4 | 3125 | } else |
fe82a183 | 3126 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3127 | __func__, len); |
1da177e4 LT |
3128 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; |
3129 | } | |
3110ff80 | 3130 | dprintk("%s: gid=%d\n", __func__, (int)*gid); |
409924e4 | 3131 | return ret; |
1da177e4 LT |
3132 | } |
3133 | ||
3134 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) | |
3135 | { | |
8687b63a AV |
3136 | uint32_t major = 0, minor = 0; |
3137 | __be32 *p; | |
409924e4 | 3138 | int ret = 0; |
1da177e4 LT |
3139 | |
3140 | *rdev = MKDEV(0,0); | |
3141 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) | |
3142 | return -EIO; | |
3143 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { | |
3144 | dev_t tmp; | |
3145 | ||
3146 | READ_BUF(8); | |
3147 | READ32(major); | |
3148 | READ32(minor); | |
3149 | tmp = MKDEV(major, minor); | |
3150 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) | |
3151 | *rdev = tmp; | |
3152 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; | |
409924e4 | 3153 | ret = NFS_ATTR_FATTR_RDEV; |
1da177e4 | 3154 | } |
3110ff80 | 3155 | dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); |
409924e4 | 3156 | return ret; |
1da177e4 LT |
3157 | } |
3158 | ||
3159 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3160 | { | |
8687b63a | 3161 | __be32 *p; |
1da177e4 LT |
3162 | int status = 0; |
3163 | ||
3164 | *res = 0; | |
3165 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) | |
3166 | return -EIO; | |
3167 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { | |
3168 | READ_BUF(8); | |
3169 | READ64(*res); | |
3170 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; | |
3171 | } | |
3110ff80 | 3172 | dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
3173 | return status; |
3174 | } | |
3175 | ||
3176 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3177 | { | |
8687b63a | 3178 | __be32 *p; |
1da177e4 LT |
3179 | int status = 0; |
3180 | ||
3181 | *res = 0; | |
3182 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) | |
3183 | return -EIO; | |
3184 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { | |
3185 | READ_BUF(8); | |
3186 | READ64(*res); | |
3187 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; | |
3188 | } | |
3110ff80 | 3189 | dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
3190 | return status; |
3191 | } | |
3192 | ||
3193 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3194 | { | |
8687b63a | 3195 | __be32 *p; |
1da177e4 LT |
3196 | int status = 0; |
3197 | ||
3198 | *res = 0; | |
3199 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) | |
3200 | return -EIO; | |
3201 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { | |
3202 | READ_BUF(8); | |
3203 | READ64(*res); | |
3204 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; | |
3205 | } | |
3110ff80 | 3206 | dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
3207 | return status; |
3208 | } | |
3209 | ||
3210 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) | |
3211 | { | |
8687b63a | 3212 | __be32 *p; |
409924e4 | 3213 | int ret = 0; |
1da177e4 LT |
3214 | |
3215 | *used = 0; | |
3216 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) | |
3217 | return -EIO; | |
3218 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { | |
3219 | READ_BUF(8); | |
3220 | READ64(*used); | |
3221 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; | |
409924e4 | 3222 | ret = NFS_ATTR_FATTR_SPACE_USED; |
1da177e4 | 3223 | } |
3110ff80 | 3224 | dprintk("%s: space used=%Lu\n", __func__, |
1da177e4 | 3225 | (unsigned long long)*used); |
409924e4 | 3226 | return ret; |
1da177e4 LT |
3227 | } |
3228 | ||
3229 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) | |
3230 | { | |
8687b63a | 3231 | __be32 *p; |
1da177e4 LT |
3232 | uint64_t sec; |
3233 | uint32_t nsec; | |
3234 | ||
3235 | READ_BUF(12); | |
3236 | READ64(sec); | |
3237 | READ32(nsec); | |
3238 | time->tv_sec = (time_t)sec; | |
3239 | time->tv_nsec = (long)nsec; | |
3240 | return 0; | |
3241 | } | |
3242 | ||
3243 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3244 | { | |
3245 | int status = 0; | |
3246 | ||
3247 | time->tv_sec = 0; | |
3248 | time->tv_nsec = 0; | |
3249 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) | |
3250 | return -EIO; | |
3251 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { | |
3252 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3253 | if (status == 0) |
3254 | status = NFS_ATTR_FATTR_ATIME; | |
1da177e4 LT |
3255 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; |
3256 | } | |
3110ff80 | 3257 | dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3258 | return status; |
3259 | } | |
3260 | ||
3261 | static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3262 | { | |
3263 | int status = 0; | |
3264 | ||
3265 | time->tv_sec = 0; | |
3266 | time->tv_nsec = 0; | |
3267 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) | |
3268 | return -EIO; | |
3269 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { | |
3270 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3271 | if (status == 0) |
3272 | status = NFS_ATTR_FATTR_CTIME; | |
1da177e4 LT |
3273 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; |
3274 | } | |
3110ff80 | 3275 | dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3276 | return status; |
3277 | } | |
3278 | ||
3279 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3280 | { | |
3281 | int status = 0; | |
3282 | ||
3283 | time->tv_sec = 0; | |
3284 | time->tv_nsec = 0; | |
3285 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) | |
3286 | return -EIO; | |
3287 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { | |
3288 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3289 | if (status == 0) |
3290 | status = NFS_ATTR_FATTR_MTIME; | |
1da177e4 LT |
3291 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; |
3292 | } | |
3110ff80 | 3293 | dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3294 | return status; |
3295 | } | |
3296 | ||
8687b63a | 3297 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
1da177e4 LT |
3298 | { |
3299 | unsigned int attrwords = XDR_QUADLEN(attrlen); | |
3300 | unsigned int nwords = xdr->p - savep; | |
3301 | ||
3302 | if (unlikely(attrwords != nwords)) { | |
fe82a183 CL |
3303 | dprintk("%s: server returned incorrect attribute length: " |
3304 | "%u %c %u\n", | |
3110ff80 | 3305 | __func__, |
1da177e4 LT |
3306 | attrwords << 2, |
3307 | (attrwords < nwords) ? '<' : '>', | |
3308 | nwords << 2); | |
3309 | return -EIO; | |
3310 | } | |
3311 | return 0; | |
3312 | } | |
3313 | ||
3314 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3315 | { | |
8687b63a | 3316 | __be32 *p; |
1da177e4 LT |
3317 | |
3318 | READ_BUF(20); | |
3319 | READ32(cinfo->atomic); | |
3320 | READ64(cinfo->before); | |
3321 | READ64(cinfo->after); | |
3322 | return 0; | |
3323 | } | |
3324 | ||
3325 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) | |
3326 | { | |
8687b63a | 3327 | __be32 *p; |
1da177e4 LT |
3328 | uint32_t supp, acc; |
3329 | int status; | |
3330 | ||
3331 | status = decode_op_hdr(xdr, OP_ACCESS); | |
3332 | if (status) | |
3333 | return status; | |
3334 | READ_BUF(8); | |
3335 | READ32(supp); | |
3336 | READ32(acc); | |
3337 | access->supported = supp; | |
3338 | access->access = acc; | |
3339 | return 0; | |
3340 | } | |
3341 | ||
3342 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3343 | { | |
8687b63a | 3344 | __be32 *p; |
1da177e4 LT |
3345 | int status; |
3346 | ||
3347 | status = decode_op_hdr(xdr, OP_CLOSE); | |
c1d51931 TM |
3348 | if (status != -EIO) |
3349 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
3350 | if (status) |
3351 | return status; | |
8ae20abd TM |
3352 | READ_BUF(NFS4_STATEID_SIZE); |
3353 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3354 | return 0; |
3355 | } | |
3356 | ||
3357 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3358 | { | |
8687b63a | 3359 | __be32 *p; |
1da177e4 LT |
3360 | int status; |
3361 | ||
3362 | status = decode_op_hdr(xdr, OP_COMMIT); | |
3363 | if (status) | |
3364 | return status; | |
3365 | READ_BUF(8); | |
3366 | COPYMEM(res->verf->verifier, 8); | |
3367 | return 0; | |
3368 | } | |
3369 | ||
3370 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3371 | { | |
8687b63a | 3372 | __be32 *p; |
1da177e4 LT |
3373 | uint32_t bmlen; |
3374 | int status; | |
3375 | ||
3376 | status = decode_op_hdr(xdr, OP_CREATE); | |
3377 | if (status) | |
3378 | return status; | |
3379 | if ((status = decode_change_info(xdr, cinfo))) | |
3380 | return status; | |
3381 | READ_BUF(4); | |
3382 | READ32(bmlen); | |
3383 | READ_BUF(bmlen << 2); | |
3384 | return 0; | |
3385 | } | |
3386 | ||
3387 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) | |
3388 | { | |
8687b63a | 3389 | __be32 *savep; |
6c0195a4 | 3390 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 LT |
3391 | int status; |
3392 | ||
3393 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3394 | goto xdr_error; | |
3395 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3396 | goto xdr_error; | |
3397 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3398 | goto xdr_error; | |
3399 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) | |
3400 | goto xdr_error; | |
3401 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) | |
3402 | goto xdr_error; | |
3403 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) | |
3404 | goto xdr_error; | |
3405 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) | |
3406 | goto xdr_error; | |
3407 | status = verify_attr_len(xdr, savep, attrlen); | |
3408 | xdr_error: | |
3110ff80 | 3409 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3410 | return status; |
3411 | } | |
6c0195a4 | 3412 | |
1da177e4 LT |
3413 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) |
3414 | { | |
8687b63a | 3415 | __be32 *savep; |
6c0195a4 | 3416 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3417 | int status; |
6c0195a4 | 3418 | |
1da177e4 LT |
3419 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3420 | goto xdr_error; | |
3421 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3422 | goto xdr_error; | |
3423 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3424 | goto xdr_error; | |
3425 | ||
3426 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) | |
3427 | goto xdr_error; | |
3428 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) | |
3429 | goto xdr_error; | |
3430 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) | |
3431 | goto xdr_error; | |
3432 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) | |
3433 | goto xdr_error; | |
3434 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) | |
3435 | goto xdr_error; | |
3436 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) | |
3437 | goto xdr_error; | |
3438 | ||
3439 | status = verify_attr_len(xdr, savep, attrlen); | |
3440 | xdr_error: | |
3110ff80 | 3441 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3442 | return status; |
3443 | } | |
3444 | ||
3445 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) | |
3446 | { | |
8687b63a | 3447 | __be32 *savep; |
6c0195a4 | 3448 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3449 | int status; |
6c0195a4 | 3450 | |
1da177e4 LT |
3451 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3452 | goto xdr_error; | |
3453 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3454 | goto xdr_error; | |
3455 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3456 | goto xdr_error; | |
3457 | ||
3458 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) | |
3459 | goto xdr_error; | |
3460 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) | |
3461 | goto xdr_error; | |
3462 | ||
3463 | status = verify_attr_len(xdr, savep, attrlen); | |
3464 | xdr_error: | |
3110ff80 | 3465 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3466 | return status; |
3467 | } | |
3468 | ||
3469 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) | |
3470 | { | |
8687b63a | 3471 | __be32 *savep; |
1da177e4 LT |
3472 | uint32_t attrlen, |
3473 | bitmap[2] = {0}, | |
3474 | type; | |
bca79478 TM |
3475 | int status; |
3476 | umode_t fmode = 0; | |
99baf625 | 3477 | uint64_t fileid; |
1da177e4 | 3478 | |
f26c7a78 TM |
3479 | status = decode_op_hdr(xdr, OP_GETATTR); |
3480 | if (status < 0) | |
1da177e4 | 3481 | goto xdr_error; |
f26c7a78 TM |
3482 | |
3483 | status = decode_attr_bitmap(xdr, bitmap); | |
3484 | if (status < 0) | |
1da177e4 LT |
3485 | goto xdr_error; |
3486 | ||
f26c7a78 TM |
3487 | status = decode_attr_length(xdr, &attrlen, &savep); |
3488 | if (status < 0) | |
1da177e4 LT |
3489 | goto xdr_error; |
3490 | ||
3491 | ||
f26c7a78 TM |
3492 | status = decode_attr_type(xdr, bitmap, &type); |
3493 | if (status < 0) | |
1da177e4 | 3494 | goto xdr_error; |
409924e4 TM |
3495 | fattr->mode = 0; |
3496 | if (status != 0) { | |
3497 | fattr->mode |= nfs_type2fmt[type]; | |
3498 | fattr->valid |= status; | |
3499 | } | |
1da177e4 | 3500 | |
f26c7a78 TM |
3501 | status = decode_attr_change(xdr, bitmap, &fattr->change_attr); |
3502 | if (status < 0) | |
1da177e4 | 3503 | goto xdr_error; |
409924e4 | 3504 | fattr->valid |= status; |
f26c7a78 TM |
3505 | |
3506 | status = decode_attr_size(xdr, bitmap, &fattr->size); | |
3507 | if (status < 0) | |
1da177e4 | 3508 | goto xdr_error; |
409924e4 | 3509 | fattr->valid |= status; |
f26c7a78 TM |
3510 | |
3511 | status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); | |
3512 | if (status < 0) | |
1da177e4 | 3513 | goto xdr_error; |
409924e4 | 3514 | fattr->valid |= status; |
f26c7a78 TM |
3515 | |
3516 | status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); | |
3517 | if (status < 0) | |
1da177e4 | 3518 | goto xdr_error; |
409924e4 | 3519 | fattr->valid |= status; |
f26c7a78 TM |
3520 | |
3521 | status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, | |
7aaa0b3b | 3522 | struct nfs4_fs_locations, |
f26c7a78 TM |
3523 | fattr)); |
3524 | if (status < 0) | |
683b57b4 | 3525 | goto xdr_error; |
409924e4 | 3526 | fattr->valid |= status; |
f26c7a78 TM |
3527 | |
3528 | status = decode_attr_mode(xdr, bitmap, &fmode); | |
3529 | if (status < 0) | |
1da177e4 | 3530 | goto xdr_error; |
409924e4 TM |
3531 | if (status != 0) { |
3532 | fattr->mode |= fmode; | |
3533 | fattr->valid |= status; | |
3534 | } | |
f26c7a78 TM |
3535 | |
3536 | status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); | |
3537 | if (status < 0) | |
1da177e4 | 3538 | goto xdr_error; |
409924e4 | 3539 | fattr->valid |= status; |
f26c7a78 TM |
3540 | |
3541 | status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); | |
3542 | if (status < 0) | |
1da177e4 | 3543 | goto xdr_error; |
409924e4 | 3544 | fattr->valid |= status; |
f26c7a78 TM |
3545 | |
3546 | status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); | |
3547 | if (status < 0) | |
1da177e4 | 3548 | goto xdr_error; |
409924e4 | 3549 | fattr->valid |= status; |
f26c7a78 TM |
3550 | |
3551 | status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); | |
3552 | if (status < 0) | |
1da177e4 | 3553 | goto xdr_error; |
409924e4 | 3554 | fattr->valid |= status; |
f26c7a78 TM |
3555 | |
3556 | status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); | |
3557 | if (status < 0) | |
1da177e4 | 3558 | goto xdr_error; |
409924e4 | 3559 | fattr->valid |= status; |
f26c7a78 TM |
3560 | |
3561 | status = decode_attr_time_access(xdr, bitmap, &fattr->atime); | |
3562 | if (status < 0) | |
1da177e4 | 3563 | goto xdr_error; |
409924e4 | 3564 | fattr->valid |= status; |
f26c7a78 TM |
3565 | |
3566 | status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); | |
3567 | if (status < 0) | |
1da177e4 | 3568 | goto xdr_error; |
409924e4 | 3569 | fattr->valid |= status; |
f26c7a78 TM |
3570 | |
3571 | status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); | |
3572 | if (status < 0) | |
1da177e4 | 3573 | goto xdr_error; |
409924e4 | 3574 | fattr->valid |= status; |
f26c7a78 TM |
3575 | |
3576 | status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); | |
3577 | if (status < 0) | |
99baf625 | 3578 | goto xdr_error; |
409924e4 | 3579 | if (status != 0 && !(fattr->valid & status)) { |
99baf625 | 3580 | fattr->fileid = fileid; |
409924e4 TM |
3581 | fattr->valid |= status; |
3582 | } | |
f26c7a78 TM |
3583 | |
3584 | status = verify_attr_len(xdr, savep, attrlen); | |
1da177e4 | 3585 | xdr_error: |
3110ff80 | 3586 | dprintk("%s: xdr returned %d\n", __func__, -status); |
1da177e4 LT |
3587 | return status; |
3588 | } | |
3589 | ||
3590 | ||
3591 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) | |
3592 | { | |
8687b63a | 3593 | __be32 *savep; |
1da177e4 LT |
3594 | uint32_t attrlen, bitmap[2]; |
3595 | int status; | |
3596 | ||
3597 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3598 | goto xdr_error; | |
3599 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3600 | goto xdr_error; | |
3601 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3602 | goto xdr_error; | |
3603 | ||
3604 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ | |
3605 | ||
3606 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) | |
3607 | goto xdr_error; | |
3608 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) | |
3609 | goto xdr_error; | |
3610 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) | |
3611 | goto xdr_error; | |
3612 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; | |
3613 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) | |
3614 | goto xdr_error; | |
3615 | fsinfo->wtpref = fsinfo->wtmax; | |
3616 | ||
3617 | status = verify_attr_len(xdr, savep, attrlen); | |
3618 | xdr_error: | |
3110ff80 | 3619 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3620 | return status; |
3621 | } | |
3622 | ||
3623 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) | |
3624 | { | |
8687b63a | 3625 | __be32 *p; |
1da177e4 LT |
3626 | uint32_t len; |
3627 | int status; | |
3628 | ||
9936781d TM |
3629 | /* Zero handle first to allow comparisons */ |
3630 | memset(fh, 0, sizeof(*fh)); | |
3631 | ||
1da177e4 LT |
3632 | status = decode_op_hdr(xdr, OP_GETFH); |
3633 | if (status) | |
3634 | return status; | |
1da177e4 LT |
3635 | |
3636 | READ_BUF(4); | |
3637 | READ32(len); | |
3638 | if (len > NFS4_FHSIZE) | |
3639 | return -EIO; | |
3640 | fh->size = len; | |
3641 | READ_BUF(len); | |
3642 | COPYMEM(fh->data, len); | |
3643 | return 0; | |
3644 | } | |
3645 | ||
3646 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3647 | { | |
3648 | int status; | |
6c0195a4 | 3649 | |
1da177e4 LT |
3650 | status = decode_op_hdr(xdr, OP_LINK); |
3651 | if (status) | |
3652 | return status; | |
3653 | return decode_change_info(xdr, cinfo); | |
3654 | } | |
3655 | ||
3656 | /* | |
3657 | * We create the owner, so we know a proper owner.id length is 4. | |
3658 | */ | |
911d1aaf | 3659 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
1da177e4 | 3660 | { |
911d1aaf | 3661 | uint64_t offset, length, clientid; |
8687b63a | 3662 | __be32 *p; |
911d1aaf | 3663 | uint32_t namelen, type; |
1da177e4 LT |
3664 | |
3665 | READ_BUF(32); | |
911d1aaf TM |
3666 | READ64(offset); |
3667 | READ64(length); | |
3668 | READ32(type); | |
3669 | if (fl != NULL) { | |
3670 | fl->fl_start = (loff_t)offset; | |
3671 | fl->fl_end = fl->fl_start + (loff_t)length - 1; | |
3672 | if (length == ~(uint64_t)0) | |
3673 | fl->fl_end = OFFSET_MAX; | |
3674 | fl->fl_type = F_WRLCK; | |
3675 | if (type & 1) | |
3676 | fl->fl_type = F_RDLCK; | |
3677 | fl->fl_pid = 0; | |
3678 | } | |
3679 | READ64(clientid); | |
1da177e4 LT |
3680 | READ32(namelen); |
3681 | READ_BUF(namelen); | |
1da177e4 LT |
3682 | return -NFS4ERR_DENIED; |
3683 | } | |
3684 | ||
911d1aaf | 3685 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
1da177e4 | 3686 | { |
8687b63a | 3687 | __be32 *p; |
1da177e4 LT |
3688 | int status; |
3689 | ||
3690 | status = decode_op_hdr(xdr, OP_LOCK); | |
c1d51931 TM |
3691 | if (status == -EIO) |
3692 | goto out; | |
1da177e4 | 3693 | if (status == 0) { |
8ae20abd TM |
3694 | READ_BUF(NFS4_STATEID_SIZE); |
3695 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3696 | } else if (status == -NFS4ERR_DENIED) |
c1d51931 TM |
3697 | status = decode_lock_denied(xdr, NULL); |
3698 | if (res->open_seqid != NULL) | |
3699 | nfs_increment_open_seqid(status, res->open_seqid); | |
3700 | nfs_increment_lock_seqid(status, res->lock_seqid); | |
3701 | out: | |
1da177e4 LT |
3702 | return status; |
3703 | } | |
3704 | ||
911d1aaf | 3705 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
1da177e4 LT |
3706 | { |
3707 | int status; | |
3708 | status = decode_op_hdr(xdr, OP_LOCKT); | |
3709 | if (status == -NFS4ERR_DENIED) | |
911d1aaf | 3710 | return decode_lock_denied(xdr, res->denied); |
1da177e4 LT |
3711 | return status; |
3712 | } | |
3713 | ||
911d1aaf | 3714 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
1da177e4 | 3715 | { |
8687b63a | 3716 | __be32 *p; |
1da177e4 LT |
3717 | int status; |
3718 | ||
3719 | status = decode_op_hdr(xdr, OP_LOCKU); | |
c1d51931 TM |
3720 | if (status != -EIO) |
3721 | nfs_increment_lock_seqid(status, res->seqid); | |
1da177e4 | 3722 | if (status == 0) { |
8ae20abd TM |
3723 | READ_BUF(NFS4_STATEID_SIZE); |
3724 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3725 | } |
3726 | return status; | |
3727 | } | |
3728 | ||
3729 | static int decode_lookup(struct xdr_stream *xdr) | |
3730 | { | |
3731 | return decode_op_hdr(xdr, OP_LOOKUP); | |
3732 | } | |
3733 | ||
3734 | /* This is too sick! */ | |
3735 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) | |
3736 | { | |
05d564fe | 3737 | __be32 *p; |
1da177e4 LT |
3738 | uint32_t limit_type, nblocks, blocksize; |
3739 | ||
3740 | READ_BUF(12); | |
3741 | READ32(limit_type); | |
3742 | switch (limit_type) { | |
05d564fe AA |
3743 | case 1: |
3744 | READ64(*maxsize); | |
3745 | break; | |
3746 | case 2: | |
3747 | READ32(nblocks); | |
3748 | READ32(blocksize); | |
3749 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; | |
1da177e4 LT |
3750 | } |
3751 | return 0; | |
3752 | } | |
3753 | ||
3754 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) | |
3755 | { | |
05d564fe AA |
3756 | __be32 *p; |
3757 | uint32_t delegation_type; | |
1da177e4 LT |
3758 | |
3759 | READ_BUF(4); | |
3760 | READ32(delegation_type); | |
3761 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { | |
3762 | res->delegation_type = 0; | |
3763 | return 0; | |
3764 | } | |
8ae20abd TM |
3765 | READ_BUF(NFS4_STATEID_SIZE+4); |
3766 | COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3767 | READ32(res->do_recall); |
05d564fe | 3768 | |
1da177e4 | 3769 | switch (delegation_type) { |
05d564fe AA |
3770 | case NFS4_OPEN_DELEGATE_READ: |
3771 | res->delegation_type = FMODE_READ; | |
3772 | break; | |
3773 | case NFS4_OPEN_DELEGATE_WRITE: | |
3774 | res->delegation_type = FMODE_WRITE|FMODE_READ; | |
3775 | if (decode_space_limit(xdr, &res->maxsize) < 0) | |
1da177e4 LT |
3776 | return -EIO; |
3777 | } | |
7539bbab | 3778 | return decode_ace(xdr, NULL, res->server->nfs_client); |
1da177e4 LT |
3779 | } |
3780 | ||
3781 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) | |
3782 | { | |
05d564fe | 3783 | __be32 *p; |
aa53ed54 | 3784 | uint32_t savewords, bmlen, i; |
05d564fe | 3785 | int status; |
1da177e4 | 3786 | |
05d564fe | 3787 | status = decode_op_hdr(xdr, OP_OPEN); |
c1d51931 TM |
3788 | if (status != -EIO) |
3789 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3790 | if (status) |
3791 | return status; | |
3792 | READ_BUF(NFS4_STATEID_SIZE); | |
3793 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3794 | |
05d564fe | 3795 | decode_change_info(xdr, &res->cinfo); |
1da177e4 | 3796 | |
05d564fe AA |
3797 | READ_BUF(8); |
3798 | READ32(res->rflags); | |
3799 | READ32(bmlen); | |
3800 | if (bmlen > 10) | |
3801 | goto xdr_error; | |
1da177e4 | 3802 | |
05d564fe | 3803 | READ_BUF(bmlen << 2); |
aa53ed54 JL |
3804 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
3805 | for (i = 0; i < savewords; ++i) | |
3806 | READ32(res->attrset[i]); | |
3807 | for (; i < NFS4_BITMAP_SIZE; i++) | |
3808 | res->attrset[i] = 0; | |
3809 | ||
1da177e4 LT |
3810 | return decode_delegation(xdr, res); |
3811 | xdr_error: | |
3110ff80 | 3812 | dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); |
1da177e4 LT |
3813 | return -EIO; |
3814 | } | |
3815 | ||
3816 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) | |
3817 | { | |
05d564fe | 3818 | __be32 *p; |
1da177e4 LT |
3819 | int status; |
3820 | ||
05d564fe | 3821 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); |
c1d51931 TM |
3822 | if (status != -EIO) |
3823 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3824 | if (status) |
3825 | return status; | |
3826 | READ_BUF(NFS4_STATEID_SIZE); | |
3827 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
3828 | return 0; | |
1da177e4 LT |
3829 | } |
3830 | ||
3831 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3832 | { | |
8687b63a | 3833 | __be32 *p; |
1da177e4 LT |
3834 | int status; |
3835 | ||
3836 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); | |
c1d51931 TM |
3837 | if (status != -EIO) |
3838 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
3839 | if (status) |
3840 | return status; | |
8ae20abd TM |
3841 | READ_BUF(NFS4_STATEID_SIZE); |
3842 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3843 | return 0; |
3844 | } | |
3845 | ||
3846 | static int decode_putfh(struct xdr_stream *xdr) | |
3847 | { | |
3848 | return decode_op_hdr(xdr, OP_PUTFH); | |
3849 | } | |
3850 | ||
3851 | static int decode_putrootfh(struct xdr_stream *xdr) | |
3852 | { | |
3853 | return decode_op_hdr(xdr, OP_PUTROOTFH); | |
3854 | } | |
3855 | ||
3856 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) | |
3857 | { | |
3858 | struct kvec *iov = req->rq_rcv_buf.head; | |
8687b63a | 3859 | __be32 *p; |
1da177e4 LT |
3860 | uint32_t count, eof, recvd, hdrlen; |
3861 | int status; | |
3862 | ||
3863 | status = decode_op_hdr(xdr, OP_READ); | |
3864 | if (status) | |
3865 | return status; | |
3866 | READ_BUF(8); | |
3867 | READ32(eof); | |
3868 | READ32(count); | |
3869 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; | |
3870 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3871 | if (count > recvd) { | |
fe82a183 | 3872 | dprintk("NFS: server cheating in read reply: " |
1da177e4 LT |
3873 | "count %u > recvd %u\n", count, recvd); |
3874 | count = recvd; | |
3875 | eof = 0; | |
3876 | } | |
3877 | xdr_read_pages(xdr, count); | |
3878 | res->eof = eof; | |
3879 | res->count = count; | |
3880 | return 0; | |
3881 | } | |
3882 | ||
3883 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) | |
3884 | { | |
3885 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3886 | struct page *page = *rcvbuf->pages; | |
3887 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3888 | size_t hdrlen; |
3889 | u32 recvd, pglen = rcvbuf->page_len; | |
8687b63a | 3890 | __be32 *end, *entry, *p, *kaddr; |
7bda2cdf | 3891 | unsigned int nr = 0; |
bcecff77 | 3892 | int status; |
1da177e4 LT |
3893 | |
3894 | status = decode_op_hdr(xdr, OP_READDIR); | |
3895 | if (status) | |
3896 | return status; | |
3897 | READ_BUF(8); | |
3898 | COPYMEM(readdir->verifier.data, 8); | |
44109241 FI |
3899 | dprintk("%s: verifier = %08x:%08x\n", |
3900 | __func__, | |
eadf4598 TM |
3901 | ((u32 *)readdir->verifier.data)[0], |
3902 | ((u32 *)readdir->verifier.data)[1]); | |
3903 | ||
1da177e4 LT |
3904 | |
3905 | hdrlen = (char *) p - (char *) iov->iov_base; | |
3906 | recvd = rcvbuf->len - hdrlen; | |
3907 | if (pglen > recvd) | |
3908 | pglen = recvd; | |
3909 | xdr_read_pages(xdr, pglen); | |
3910 | ||
3911 | BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); | |
8687b63a | 3912 | kaddr = p = kmap_atomic(page, KM_USER0); |
e8896495 | 3913 | end = p + ((pglen + readdir->pgbase) >> 2); |
1da177e4 | 3914 | entry = p; |
7bda2cdf JL |
3915 | |
3916 | /* Make sure the packet actually has a value_follows and EOF entry */ | |
3917 | if ((entry + 1) > end) | |
3918 | goto short_pkt; | |
3919 | ||
3920 | for (; *p++; nr++) { | |
bcecff77 | 3921 | u32 len, attrlen, xlen; |
e8896495 | 3922 | if (end - p < 3) |
1da177e4 | 3923 | goto short_pkt; |
eadf4598 | 3924 | dprintk("cookie = %Lu, ", *((unsigned long long *)p)); |
1da177e4 LT |
3925 | p += 2; /* cookie */ |
3926 | len = ntohl(*p++); /* filename length */ | |
3927 | if (len > NFS4_MAXNAMLEN) { | |
fe82a183 CL |
3928 | dprintk("NFS: giant filename in readdir (len 0x%x)\n", |
3929 | len); | |
1da177e4 LT |
3930 | goto err_unmap; |
3931 | } | |
e8896495 DH |
3932 | xlen = XDR_QUADLEN(len); |
3933 | if (end - p < xlen + 1) | |
1da177e4 | 3934 | goto short_pkt; |
e8896495 DH |
3935 | dprintk("filename = %*s\n", len, (char *)p); |
3936 | p += xlen; | |
1da177e4 | 3937 | len = ntohl(*p++); /* bitmap length */ |
e8896495 | 3938 | if (end - p < len + 1) |
1da177e4 | 3939 | goto short_pkt; |
e8896495 | 3940 | p += len; |
1da177e4 | 3941 | attrlen = XDR_QUADLEN(ntohl(*p++)); |
e8896495 | 3942 | if (end - p < attrlen + 2) |
1da177e4 | 3943 | goto short_pkt; |
e8896495 | 3944 | p += attrlen; /* attributes */ |
1da177e4 LT |
3945 | entry = p; |
3946 | } | |
7bda2cdf JL |
3947 | /* |
3948 | * Apparently some server sends responses that are a valid size, but | |
3949 | * contain no entries, and have value_follows==0 and EOF==0. For | |
3950 | * those, just set the EOF marker. | |
3951 | */ | |
3952 | if (!nr && entry[1] == 0) { | |
3953 | dprintk("NFS: readdir reply truncated!\n"); | |
3954 | entry[1] = 1; | |
3955 | } | |
6c0195a4 | 3956 | out: |
1da177e4 LT |
3957 | kunmap_atomic(kaddr, KM_USER0); |
3958 | return 0; | |
3959 | short_pkt: | |
7bda2cdf JL |
3960 | /* |
3961 | * When we get a short packet there are 2 possibilities. We can | |
3962 | * return an error, or fix up the response to look like a valid | |
3963 | * response and return what we have so far. If there are no | |
3964 | * entries and the packet was short, then return -EIO. If there | |
3965 | * are valid entries in the response, return them and pretend that | |
3966 | * the call was successful, but incomplete. The caller can retry the | |
3967 | * readdir starting at the last cookie. | |
3968 | */ | |
3110ff80 | 3969 | dprintk("%s: short packet at entry %d\n", __func__, nr); |
1da177e4 | 3970 | entry[0] = entry[1] = 0; |
7bda2cdf JL |
3971 | if (nr) |
3972 | goto out; | |
1da177e4 LT |
3973 | err_unmap: |
3974 | kunmap_atomic(kaddr, KM_USER0); | |
3975 | return -errno_NFSERR_IO; | |
3976 | } | |
3977 | ||
3978 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) | |
3979 | { | |
3980 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3981 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3982 | size_t hdrlen; |
3983 | u32 len, recvd; | |
8687b63a | 3984 | __be32 *p; |
1da177e4 LT |
3985 | char *kaddr; |
3986 | int status; | |
3987 | ||
3988 | status = decode_op_hdr(xdr, OP_READLINK); | |
3989 | if (status) | |
3990 | return status; | |
3991 | ||
3992 | /* Convert length of symlink */ | |
3993 | READ_BUF(4); | |
3994 | READ32(len); | |
3995 | if (len >= rcvbuf->page_len || len <= 0) { | |
fe82a183 | 3996 | dprintk("nfs: server returned giant symlink!\n"); |
1da177e4 LT |
3997 | return -ENAMETOOLONG; |
3998 | } | |
3999 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; | |
4000 | recvd = req->rq_rcv_buf.len - hdrlen; | |
4001 | if (recvd < len) { | |
fe82a183 | 4002 | dprintk("NFS: server cheating in readlink reply: " |
1da177e4 LT |
4003 | "count %u > recvd %u\n", len, recvd); |
4004 | return -EIO; | |
4005 | } | |
4006 | xdr_read_pages(xdr, len); | |
4007 | /* | |
4008 | * The XDR encode routine has set things up so that | |
4009 | * the link text will be copied directly into the | |
4010 | * buffer. We just have to do overflow-checking, | |
4011 | * and and null-terminate the text (the VFS expects | |
4012 | * null-termination). | |
4013 | */ | |
4014 | kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); | |
4015 | kaddr[len+rcvbuf->page_base] = '\0'; | |
4016 | kunmap_atomic(kaddr, KM_USER0); | |
4017 | return 0; | |
4018 | } | |
4019 | ||
4020 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
4021 | { | |
4022 | int status; | |
4023 | ||
4024 | status = decode_op_hdr(xdr, OP_REMOVE); | |
4025 | if (status) | |
4026 | goto out; | |
4027 | status = decode_change_info(xdr, cinfo); | |
4028 | out: | |
4029 | return status; | |
4030 | } | |
4031 | ||
4032 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, | |
4033 | struct nfs4_change_info *new_cinfo) | |
4034 | { | |
4035 | int status; | |
4036 | ||
4037 | status = decode_op_hdr(xdr, OP_RENAME); | |
4038 | if (status) | |
4039 | goto out; | |
4040 | if ((status = decode_change_info(xdr, old_cinfo))) | |
4041 | goto out; | |
4042 | status = decode_change_info(xdr, new_cinfo); | |
4043 | out: | |
4044 | return status; | |
4045 | } | |
4046 | ||
4047 | static int decode_renew(struct xdr_stream *xdr) | |
4048 | { | |
4049 | return decode_op_hdr(xdr, OP_RENEW); | |
4050 | } | |
4051 | ||
56ae19f3 TM |
4052 | static int |
4053 | decode_restorefh(struct xdr_stream *xdr) | |
4054 | { | |
4055 | return decode_op_hdr(xdr, OP_RESTOREFH); | |
4056 | } | |
4057 | ||
029d105e BF |
4058 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
4059 | size_t *acl_len) | |
4060 | { | |
8687b63a | 4061 | __be32 *savep; |
029d105e BF |
4062 | uint32_t attrlen, |
4063 | bitmap[2] = {0}; | |
4064 | struct kvec *iov = req->rq_rcv_buf.head; | |
4065 | int status; | |
4066 | ||
4067 | *acl_len = 0; | |
4068 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
4069 | goto out; | |
4070 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
4071 | goto out; | |
4072 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
4073 | goto out; | |
4074 | ||
4075 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) | |
4076 | return -EIO; | |
4077 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { | |
bcecff77 CL |
4078 | size_t hdrlen; |
4079 | u32 recvd; | |
029d105e BF |
4080 | |
4081 | /* We ignore &savep and don't do consistency checks on | |
4082 | * the attr length. Let userspace figure it out.... */ | |
4083 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; | |
4084 | recvd = req->rq_rcv_buf.len - hdrlen; | |
4085 | if (attrlen > recvd) { | |
fe82a183 | 4086 | dprintk("NFS: server cheating in getattr" |
029d105e BF |
4087 | " acl reply: attrlen %u > recvd %u\n", |
4088 | attrlen, recvd); | |
4089 | return -EINVAL; | |
4090 | } | |
c04871e6 | 4091 | xdr_read_pages(xdr, attrlen); |
029d105e | 4092 | *acl_len = attrlen; |
8c233cf9 BF |
4093 | } else |
4094 | status = -EOPNOTSUPP; | |
029d105e BF |
4095 | |
4096 | out: | |
4097 | return status; | |
4098 | } | |
4099 | ||
1da177e4 LT |
4100 | static int |
4101 | decode_savefh(struct xdr_stream *xdr) | |
4102 | { | |
4103 | return decode_op_hdr(xdr, OP_SAVEFH); | |
4104 | } | |
4105 | ||
9e9ecc03 | 4106 | static int decode_setattr(struct xdr_stream *xdr) |
1da177e4 | 4107 | { |
8687b63a | 4108 | __be32 *p; |
1da177e4 LT |
4109 | uint32_t bmlen; |
4110 | int status; | |
4111 | ||
1da177e4 LT |
4112 | status = decode_op_hdr(xdr, OP_SETATTR); |
4113 | if (status) | |
4114 | return status; | |
4115 | READ_BUF(4); | |
4116 | READ32(bmlen); | |
4117 | READ_BUF(bmlen << 2); | |
4118 | return 0; | |
4119 | } | |
4120 | ||
adfa6f98 | 4121 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) |
1da177e4 | 4122 | { |
8687b63a | 4123 | __be32 *p; |
1da177e4 LT |
4124 | uint32_t opnum; |
4125 | int32_t nfserr; | |
4126 | ||
4127 | READ_BUF(8); | |
4128 | READ32(opnum); | |
4129 | if (opnum != OP_SETCLIENTID) { | |
fe82a183 | 4130 | dprintk("nfs: decode_setclientid: Server returned operation" |
6c0195a4 | 4131 | " %d\n", opnum); |
1da177e4 LT |
4132 | return -EIO; |
4133 | } | |
4134 | READ32(nfserr); | |
4135 | if (nfserr == NFS_OK) { | |
8ae20abd | 4136 | READ_BUF(8 + NFS4_VERIFIER_SIZE); |
1da177e4 | 4137 | READ64(clp->cl_clientid); |
8ae20abd | 4138 | COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
4139 | } else if (nfserr == NFSERR_CLID_INUSE) { |
4140 | uint32_t len; | |
4141 | ||
4142 | /* skip netid string */ | |
4143 | READ_BUF(4); | |
4144 | READ32(len); | |
4145 | READ_BUF(len); | |
4146 | ||
4147 | /* skip uaddr string */ | |
4148 | READ_BUF(4); | |
4149 | READ32(len); | |
4150 | READ_BUF(len); | |
4151 | return -NFSERR_CLID_INUSE; | |
4152 | } else | |
856dff3d | 4153 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
4154 | |
4155 | return 0; | |
4156 | } | |
4157 | ||
4158 | static int decode_setclientid_confirm(struct xdr_stream *xdr) | |
4159 | { | |
4160 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); | |
4161 | } | |
4162 | ||
4163 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) | |
4164 | { | |
8687b63a | 4165 | __be32 *p; |
1da177e4 LT |
4166 | int status; |
4167 | ||
4168 | status = decode_op_hdr(xdr, OP_WRITE); | |
4169 | if (status) | |
4170 | return status; | |
4171 | ||
4172 | READ_BUF(16); | |
4173 | READ32(res->count); | |
4174 | READ32(res->verf->committed); | |
4175 | COPYMEM(res->verf->verifier, 8); | |
4176 | return 0; | |
4177 | } | |
4178 | ||
4179 | static int decode_delegreturn(struct xdr_stream *xdr) | |
4180 | { | |
4181 | return decode_op_hdr(xdr, OP_DELEGRETURN); | |
4182 | } | |
4183 | ||
99fe60d0 BH |
4184 | #if defined(CONFIG_NFS_V4_1) |
4185 | static int decode_exchange_id(struct xdr_stream *xdr, | |
4186 | struct nfs41_exchange_id_res *res) | |
4187 | { | |
4188 | __be32 *p; | |
4189 | uint32_t dummy; | |
4190 | int status; | |
4191 | struct nfs_client *clp = res->client; | |
4192 | ||
4193 | status = decode_op_hdr(xdr, OP_EXCHANGE_ID); | |
4194 | if (status) | |
4195 | return status; | |
4196 | ||
4197 | READ_BUF(8); | |
4198 | READ64(clp->cl_ex_clid); | |
4199 | READ_BUF(12); | |
4200 | READ32(clp->cl_seqid); | |
4201 | READ32(clp->cl_exchange_flags); | |
4202 | ||
4203 | /* We ask for SP4_NONE */ | |
4204 | READ32(dummy); | |
4205 | if (dummy != SP4_NONE) | |
4206 | return -EIO; | |
4207 | ||
4208 | /* Throw away minor_id */ | |
4209 | READ_BUF(8); | |
4210 | ||
4211 | /* Throw away Major id */ | |
4212 | READ_BUF(4); | |
4213 | READ32(dummy); | |
4214 | READ_BUF(dummy); | |
4215 | ||
4216 | /* Throw away server_scope */ | |
4217 | READ_BUF(4); | |
4218 | READ32(dummy); | |
4219 | READ_BUF(dummy); | |
4220 | ||
4221 | /* Throw away Implementation id array */ | |
4222 | READ_BUF(4); | |
4223 | READ32(dummy); | |
4224 | READ_BUF(dummy); | |
4225 | ||
4226 | return 0; | |
4227 | } | |
fc931582 AA |
4228 | |
4229 | static int decode_chan_attrs(struct xdr_stream *xdr, | |
4230 | struct nfs4_channel_attrs *attrs) | |
4231 | { | |
4232 | __be32 *p; | |
4233 | u32 nr_attrs; | |
4234 | ||
4235 | READ_BUF(28); | |
4236 | READ32(attrs->headerpadsz); | |
4237 | READ32(attrs->max_rqst_sz); | |
4238 | READ32(attrs->max_resp_sz); | |
4239 | READ32(attrs->max_resp_sz_cached); | |
4240 | READ32(attrs->max_ops); | |
4241 | READ32(attrs->max_reqs); | |
4242 | READ32(nr_attrs); | |
4243 | if (unlikely(nr_attrs > 1)) { | |
4244 | printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", | |
4245 | __func__, nr_attrs); | |
4246 | return -EINVAL; | |
4247 | } | |
4248 | if (nr_attrs == 1) | |
4249 | READ_BUF(4); /* skip rdma_attrs */ | |
4250 | return 0; | |
4251 | } | |
4252 | ||
4253 | static int decode_create_session(struct xdr_stream *xdr, | |
4254 | struct nfs41_create_session_res *res) | |
4255 | { | |
4256 | __be32 *p; | |
4257 | int status; | |
4258 | struct nfs_client *clp = res->client; | |
4259 | struct nfs4_session *session = clp->cl_session; | |
4260 | ||
4261 | status = decode_op_hdr(xdr, OP_CREATE_SESSION); | |
4262 | ||
4263 | if (status) | |
4264 | return status; | |
4265 | ||
4266 | /* sessionid */ | |
4267 | READ_BUF(NFS4_MAX_SESSIONID_LEN); | |
4268 | COPYMEM(&session->sess_id, NFS4_MAX_SESSIONID_LEN); | |
4269 | ||
4270 | /* seqid, flags */ | |
4271 | READ_BUF(8); | |
4272 | READ32(clp->cl_seqid); | |
4273 | READ32(session->flags); | |
4274 | ||
4275 | /* Channel attributes */ | |
4276 | status = decode_chan_attrs(xdr, &session->fc_attrs); | |
4277 | if (!status) | |
4278 | status = decode_chan_attrs(xdr, &session->bc_attrs); | |
4279 | return status; | |
4280 | } | |
0f3e66c6 AA |
4281 | |
4282 | static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) | |
4283 | { | |
4284 | return decode_op_hdr(xdr, OP_DESTROY_SESSION); | |
4285 | } | |
99fe60d0 BH |
4286 | #endif /* CONFIG_NFS_V4_1 */ |
4287 | ||
9b7b9fcc AA |
4288 | static int decode_sequence(struct xdr_stream *xdr, |
4289 | struct nfs4_sequence_res *res, | |
4290 | struct rpc_rqst *rqstp) | |
4291 | { | |
4292 | #if defined(CONFIG_NFS_V4_1) | |
fc01cea9 AA |
4293 | struct nfs4_slot *slot; |
4294 | struct nfs4_sessionid id; | |
4295 | u32 dummy; | |
4296 | int status; | |
4297 | __be32 *p; | |
4298 | ||
9b7b9fcc AA |
4299 | if (!res->sr_session) |
4300 | return 0; | |
4301 | ||
fc01cea9 AA |
4302 | status = decode_op_hdr(xdr, OP_SEQUENCE); |
4303 | if (status) | |
4304 | goto out_err; | |
9b7b9fcc | 4305 | |
fc01cea9 AA |
4306 | /* |
4307 | * If the server returns different values for sessionID, slotID or | |
4308 | * sequence number, the server is looney tunes. | |
4309 | */ | |
4310 | status = -ESERVERFAULT; | |
4311 | ||
4312 | slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; | |
4313 | READ_BUF(NFS4_MAX_SESSIONID_LEN + 20); | |
4314 | COPYMEM(id.data, NFS4_MAX_SESSIONID_LEN); | |
4315 | if (memcmp(id.data, res->sr_session->sess_id.data, | |
4316 | NFS4_MAX_SESSIONID_LEN)) { | |
4317 | dprintk("%s Invalid session id\n", __func__); | |
4318 | goto out_err; | |
4319 | } | |
4320 | /* seqid */ | |
4321 | READ32(dummy); | |
4322 | if (dummy != slot->seq_nr) { | |
4323 | dprintk("%s Invalid sequence number\n", __func__); | |
4324 | goto out_err; | |
4325 | } | |
4326 | /* slot id */ | |
4327 | READ32(dummy); | |
4328 | if (dummy != res->sr_slotid) { | |
4329 | dprintk("%s Invalid slot id\n", __func__); | |
4330 | goto out_err; | |
4331 | } | |
4332 | /* highest slot id - currently not processed */ | |
4333 | READ32(dummy); | |
4334 | /* target highest slot id - currently not processed */ | |
4335 | READ32(dummy); | |
4336 | /* result flags - currently not processed */ | |
4337 | READ32(dummy); | |
4338 | status = 0; | |
4339 | out_err: | |
4340 | res->sr_status = status; | |
4341 | return status; | |
4342 | #else /* CONFIG_NFS_V4_1 */ | |
9b7b9fcc | 4343 | return 0; |
fc01cea9 | 4344 | #endif /* CONFIG_NFS_V4_1 */ |
9b7b9fcc AA |
4345 | } |
4346 | ||
49c2559e BH |
4347 | /* |
4348 | * END OF "GENERIC" DECODE ROUTINES. | |
4349 | */ | |
4350 | ||
1da177e4 LT |
4351 | /* |
4352 | * Decode OPEN_DOWNGRADE response | |
4353 | */ | |
8687b63a | 4354 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4355 | { |
05d564fe AA |
4356 | struct xdr_stream xdr; |
4357 | struct compound_hdr hdr; | |
4358 | int status; | |
4359 | ||
4360 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4361 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4362 | if (status) |
4363 | goto out; | |
4364 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4365 | if (status) |
4366 | goto out; | |
4367 | status = decode_putfh(&xdr); | |
4368 | if (status) | |
4369 | goto out; | |
4370 | status = decode_open_downgrade(&xdr, res); | |
516a6af6 TM |
4371 | if (status != 0) |
4372 | goto out; | |
4373 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 4374 | out: |
05d564fe | 4375 | return status; |
1da177e4 LT |
4376 | } |
4377 | ||
1da177e4 LT |
4378 | /* |
4379 | * Decode ACCESS response | |
4380 | */ | |
8687b63a | 4381 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) |
1da177e4 LT |
4382 | { |
4383 | struct xdr_stream xdr; | |
4384 | struct compound_hdr hdr; | |
4385 | int status; | |
6c0195a4 | 4386 | |
1da177e4 | 4387 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4388 | status = decode_compound_hdr(&xdr, &hdr); |
4389 | if (status) | |
4390 | goto out; | |
4391 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4392 | if (status) | |
1da177e4 | 4393 | goto out; |
76b32999 TM |
4394 | status = decode_putfh(&xdr); |
4395 | if (status != 0) | |
4396 | goto out; | |
4397 | status = decode_access(&xdr, res); | |
4398 | if (status != 0) | |
4399 | goto out; | |
4400 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4401 | out: |
4402 | return status; | |
4403 | } | |
4404 | ||
4405 | /* | |
4406 | * Decode LOOKUP response | |
4407 | */ | |
8687b63a | 4408 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
4409 | { |
4410 | struct xdr_stream xdr; | |
4411 | struct compound_hdr hdr; | |
4412 | int status; | |
6c0195a4 | 4413 | |
1da177e4 | 4414 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4415 | status = decode_compound_hdr(&xdr, &hdr); |
4416 | if (status) | |
4417 | goto out; | |
4418 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4419 | if (status) | |
1da177e4 LT |
4420 | goto out; |
4421 | if ((status = decode_putfh(&xdr)) != 0) | |
4422 | goto out; | |
4423 | if ((status = decode_lookup(&xdr)) != 0) | |
4424 | goto out; | |
4425 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
4426 | goto out; | |
4427 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4428 | out: | |
4429 | return status; | |
4430 | } | |
4431 | ||
4432 | /* | |
4433 | * Decode LOOKUP_ROOT response | |
4434 | */ | |
8687b63a | 4435 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
4436 | { |
4437 | struct xdr_stream xdr; | |
4438 | struct compound_hdr hdr; | |
4439 | int status; | |
6c0195a4 | 4440 | |
1da177e4 | 4441 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4442 | status = decode_compound_hdr(&xdr, &hdr); |
4443 | if (status) | |
4444 | goto out; | |
4445 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4446 | if (status) | |
1da177e4 LT |
4447 | goto out; |
4448 | if ((status = decode_putrootfh(&xdr)) != 0) | |
4449 | goto out; | |
4450 | if ((status = decode_getfh(&xdr, res->fh)) == 0) | |
4451 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4452 | out: | |
4453 | return status; | |
4454 | } | |
4455 | ||
4456 | /* | |
4457 | * Decode REMOVE response | |
4458 | */ | |
4fdc17b2 | 4459 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) |
1da177e4 LT |
4460 | { |
4461 | struct xdr_stream xdr; | |
4462 | struct compound_hdr hdr; | |
4463 | int status; | |
6c0195a4 | 4464 | |
1da177e4 | 4465 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4466 | status = decode_compound_hdr(&xdr, &hdr); |
4467 | if (status) | |
4468 | goto out; | |
4469 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4470 | if (status) | |
1da177e4 | 4471 | goto out; |
16e42959 TM |
4472 | if ((status = decode_putfh(&xdr)) != 0) |
4473 | goto out; | |
4474 | if ((status = decode_remove(&xdr, &res->cinfo)) != 0) | |
4475 | goto out; | |
4fdc17b2 | 4476 | decode_getfattr(&xdr, &res->dir_attr, res->server); |
1da177e4 LT |
4477 | out: |
4478 | return status; | |
4479 | } | |
4480 | ||
4481 | /* | |
4482 | * Decode RENAME response | |
4483 | */ | |
8687b63a | 4484 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) |
1da177e4 LT |
4485 | { |
4486 | struct xdr_stream xdr; | |
4487 | struct compound_hdr hdr; | |
4488 | int status; | |
6c0195a4 | 4489 | |
1da177e4 | 4490 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4491 | status = decode_compound_hdr(&xdr, &hdr); |
4492 | if (status) | |
4493 | goto out; | |
4494 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4495 | if (status) | |
1da177e4 LT |
4496 | goto out; |
4497 | if ((status = decode_putfh(&xdr)) != 0) | |
4498 | goto out; | |
4499 | if ((status = decode_savefh(&xdr)) != 0) | |
4500 | goto out; | |
4501 | if ((status = decode_putfh(&xdr)) != 0) | |
4502 | goto out; | |
6caf2c82 TM |
4503 | if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) |
4504 | goto out; | |
4505 | /* Current FH is target directory */ | |
4506 | if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) | |
4507 | goto out; | |
4508 | if ((status = decode_restorefh(&xdr)) != 0) | |
4509 | goto out; | |
4510 | decode_getfattr(&xdr, res->old_fattr, res->server); | |
1da177e4 LT |
4511 | out: |
4512 | return status; | |
4513 | } | |
4514 | ||
4515 | /* | |
4516 | * Decode LINK response | |
4517 | */ | |
8687b63a | 4518 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) |
1da177e4 LT |
4519 | { |
4520 | struct xdr_stream xdr; | |
4521 | struct compound_hdr hdr; | |
4522 | int status; | |
6c0195a4 | 4523 | |
1da177e4 | 4524 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4525 | status = decode_compound_hdr(&xdr, &hdr); |
4526 | if (status) | |
4527 | goto out; | |
4528 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4529 | if (status) | |
1da177e4 LT |
4530 | goto out; |
4531 | if ((status = decode_putfh(&xdr)) != 0) | |
4532 | goto out; | |
4533 | if ((status = decode_savefh(&xdr)) != 0) | |
4534 | goto out; | |
4535 | if ((status = decode_putfh(&xdr)) != 0) | |
4536 | goto out; | |
91ba2eee TM |
4537 | if ((status = decode_link(&xdr, &res->cinfo)) != 0) |
4538 | goto out; | |
4539 | /* | |
4540 | * Note order: OP_LINK leaves the directory as the current | |
4541 | * filehandle. | |
4542 | */ | |
4543 | if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) | |
4544 | goto out; | |
4545 | if ((status = decode_restorefh(&xdr)) != 0) | |
4546 | goto out; | |
4547 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4548 | out: |
4549 | return status; | |
4550 | } | |
4551 | ||
4552 | /* | |
4553 | * Decode CREATE response | |
4554 | */ | |
8687b63a | 4555 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4556 | { |
4557 | struct xdr_stream xdr; | |
4558 | struct compound_hdr hdr; | |
4559 | int status; | |
6c0195a4 | 4560 | |
1da177e4 | 4561 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4562 | status = decode_compound_hdr(&xdr, &hdr); |
4563 | if (status) | |
4564 | goto out; | |
4565 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4566 | if (status) | |
1da177e4 LT |
4567 | goto out; |
4568 | if ((status = decode_putfh(&xdr)) != 0) | |
4569 | goto out; | |
56ae19f3 TM |
4570 | if ((status = decode_savefh(&xdr)) != 0) |
4571 | goto out; | |
1da177e4 LT |
4572 | if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) |
4573 | goto out; | |
4574 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
4575 | goto out; | |
56ae19f3 TM |
4576 | if (decode_getfattr(&xdr, res->fattr, res->server) != 0) |
4577 | goto out; | |
4578 | if ((status = decode_restorefh(&xdr)) != 0) | |
4579 | goto out; | |
4580 | decode_getfattr(&xdr, res->dir_fattr, res->server); | |
1da177e4 LT |
4581 | out: |
4582 | return status; | |
4583 | } | |
4584 | ||
4585 | /* | |
4586 | * Decode SYMLINK response | |
4587 | */ | |
8687b63a | 4588 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4589 | { |
4590 | return nfs4_xdr_dec_create(rqstp, p, res); | |
4591 | } | |
4592 | ||
4593 | /* | |
4594 | * Decode GETATTR response | |
4595 | */ | |
8687b63a | 4596 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) |
1da177e4 LT |
4597 | { |
4598 | struct xdr_stream xdr; | |
4599 | struct compound_hdr hdr; | |
4600 | int status; | |
6c0195a4 | 4601 | |
1da177e4 LT |
4602 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
4603 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4604 | if (status) |
4605 | goto out; | |
4606 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4607 | if (status) |
4608 | goto out; | |
4609 | status = decode_putfh(&xdr); | |
4610 | if (status) | |
4611 | goto out; | |
4612 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4613 | out: | |
4614 | return status; | |
1da177e4 LT |
4615 | } |
4616 | ||
23ec6965 BF |
4617 | /* |
4618 | * Encode an SETACL request | |
4619 | */ | |
4620 | static int | |
8687b63a | 4621 | nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) |
23ec6965 | 4622 | { |
05d564fe AA |
4623 | struct xdr_stream xdr; |
4624 | struct compound_hdr hdr = { | |
66cc0429 | 4625 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe AA |
4626 | }; |
4627 | int status; | |
4628 | ||
4629 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 4630 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 4631 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 | 4632 | encode_putfh(&xdr, args->fh, &hdr); |
d017931c | 4633 | status = encode_setacl(&xdr, args, &hdr); |
d017931c | 4634 | encode_nops(&hdr); |
05d564fe | 4635 | return status; |
23ec6965 | 4636 | } |
05d564fe | 4637 | |
23ec6965 BF |
4638 | /* |
4639 | * Decode SETACL response | |
4640 | */ | |
4641 | static int | |
73c403a9 BH |
4642 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, |
4643 | struct nfs_setaclres *res) | |
23ec6965 BF |
4644 | { |
4645 | struct xdr_stream xdr; | |
4646 | struct compound_hdr hdr; | |
4647 | int status; | |
4648 | ||
4649 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4650 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4651 | if (status) |
4652 | goto out; | |
4653 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
23ec6965 BF |
4654 | if (status) |
4655 | goto out; | |
4656 | status = decode_putfh(&xdr); | |
4657 | if (status) | |
4658 | goto out; | |
9e9ecc03 | 4659 | status = decode_setattr(&xdr); |
23ec6965 BF |
4660 | out: |
4661 | return status; | |
4662 | } | |
1da177e4 | 4663 | |
029d105e BF |
4664 | /* |
4665 | * Decode GETACL response | |
4666 | */ | |
4667 | static int | |
663c79b3 BH |
4668 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, |
4669 | struct nfs_getaclres *res) | |
029d105e BF |
4670 | { |
4671 | struct xdr_stream xdr; | |
4672 | struct compound_hdr hdr; | |
4673 | int status; | |
4674 | ||
4675 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4676 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4677 | if (status) |
4678 | goto out; | |
4679 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
029d105e BF |
4680 | if (status) |
4681 | goto out; | |
4682 | status = decode_putfh(&xdr); | |
4683 | if (status) | |
4684 | goto out; | |
663c79b3 | 4685 | status = decode_getacl(&xdr, rqstp, &res->acl_len); |
029d105e BF |
4686 | |
4687 | out: | |
4688 | return status; | |
4689 | } | |
4690 | ||
1da177e4 LT |
4691 | /* |
4692 | * Decode CLOSE response | |
4693 | */ | |
8687b63a | 4694 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4695 | { |
05d564fe AA |
4696 | struct xdr_stream xdr; |
4697 | struct compound_hdr hdr; | |
4698 | int status; | |
4699 | ||
4700 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4701 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4702 | if (status) |
4703 | goto out; | |
4704 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4705 | if (status) |
4706 | goto out; | |
4707 | status = decode_putfh(&xdr); | |
4708 | if (status) | |
4709 | goto out; | |
4710 | status = decode_close(&xdr, res); | |
516a6af6 TM |
4711 | if (status != 0) |
4712 | goto out; | |
4713 | /* | |
4714 | * Note: Server may do delete on close for this file | |
4715 | * in which case the getattr call will fail with | |
4716 | * an ESTALE error. Shouldn't be a problem, | |
4717 | * though, since fattr->valid will remain unset. | |
4718 | */ | |
4719 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 4720 | out: |
05d564fe | 4721 | return status; |
1da177e4 LT |
4722 | } |
4723 | ||
4724 | /* | |
4725 | * Decode OPEN response | |
4726 | */ | |
8687b63a | 4727 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4728 | { |
05d564fe AA |
4729 | struct xdr_stream xdr; |
4730 | struct compound_hdr hdr; | |
4731 | int status; | |
4732 | ||
4733 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4734 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4735 | if (status) |
4736 | goto out; | |
4737 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4738 | if (status) |
4739 | goto out; | |
4740 | status = decode_putfh(&xdr); | |
4741 | if (status) | |
4742 | goto out; | |
4743 | status = decode_savefh(&xdr); | |
4744 | if (status) | |
4745 | goto out; | |
4746 | status = decode_open(&xdr, res); | |
56ae19f3 TM |
4747 | if (status) |
4748 | goto out; | |
9936781d | 4749 | if (decode_getfh(&xdr, &res->fh) != 0) |
1da177e4 | 4750 | goto out; |
56ae19f3 TM |
4751 | if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) |
4752 | goto out; | |
365c8f58 | 4753 | if (decode_restorefh(&xdr) != 0) |
56ae19f3 TM |
4754 | goto out; |
4755 | decode_getfattr(&xdr, res->dir_attr, res->server); | |
1da177e4 | 4756 | out: |
05d564fe | 4757 | return status; |
1da177e4 LT |
4758 | } |
4759 | ||
4760 | /* | |
4761 | * Decode OPEN_CONFIRM response | |
4762 | */ | |
8687b63a | 4763 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) |
1da177e4 | 4764 | { |
05d564fe AA |
4765 | struct xdr_stream xdr; |
4766 | struct compound_hdr hdr; | |
4767 | int status; | |
4768 | ||
4769 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4770 | status = decode_compound_hdr(&xdr, &hdr); | |
4771 | if (status) | |
4772 | goto out; | |
4773 | status = decode_putfh(&xdr); | |
4774 | if (status) | |
4775 | goto out; | |
4776 | status = decode_open_confirm(&xdr, res); | |
1da177e4 | 4777 | out: |
05d564fe | 4778 | return status; |
1da177e4 LT |
4779 | } |
4780 | ||
4781 | /* | |
4782 | * Decode OPEN response | |
4783 | */ | |
8687b63a | 4784 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4785 | { |
05d564fe AA |
4786 | struct xdr_stream xdr; |
4787 | struct compound_hdr hdr; | |
4788 | int status; | |
4789 | ||
4790 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4791 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4792 | if (status) |
4793 | goto out; | |
4794 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4795 | if (status) |
4796 | goto out; | |
4797 | status = decode_putfh(&xdr); | |
4798 | if (status) | |
4799 | goto out; | |
4800 | status = decode_open(&xdr, res); | |
4801 | if (status) | |
4802 | goto out; | |
864472e9 | 4803 | decode_getfattr(&xdr, res->f_attr, res->server); |
1da177e4 | 4804 | out: |
05d564fe | 4805 | return status; |
1da177e4 LT |
4806 | } |
4807 | ||
4808 | /* | |
4809 | * Decode SETATTR response | |
4810 | */ | |
8687b63a | 4811 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) |
1da177e4 | 4812 | { |
05d564fe AA |
4813 | struct xdr_stream xdr; |
4814 | struct compound_hdr hdr; | |
4815 | int status; | |
4816 | ||
4817 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4818 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4819 | if (status) |
4820 | goto out; | |
4821 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4822 | if (status) |
4823 | goto out; | |
4824 | status = decode_putfh(&xdr); | |
4825 | if (status) | |
4826 | goto out; | |
9e9ecc03 | 4827 | status = decode_setattr(&xdr); |
05d564fe AA |
4828 | if (status) |
4829 | goto out; | |
78f945f8 | 4830 | decode_getfattr(&xdr, res->fattr, res->server); |
1da177e4 | 4831 | out: |
05d564fe | 4832 | return status; |
1da177e4 LT |
4833 | } |
4834 | ||
4835 | /* | |
4836 | * Decode LOCK response | |
4837 | */ | |
8687b63a | 4838 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) |
1da177e4 LT |
4839 | { |
4840 | struct xdr_stream xdr; | |
4841 | struct compound_hdr hdr; | |
4842 | int status; | |
4843 | ||
4844 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4845 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4846 | if (status) |
4847 | goto out; | |
4848 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4849 | if (status) |
4850 | goto out; | |
4851 | status = decode_putfh(&xdr); | |
4852 | if (status) | |
4853 | goto out; | |
4854 | status = decode_lock(&xdr, res); | |
4855 | out: | |
4856 | return status; | |
4857 | } | |
4858 | ||
4859 | /* | |
4860 | * Decode LOCKT response | |
4861 | */ | |
8687b63a | 4862 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) |
1da177e4 LT |
4863 | { |
4864 | struct xdr_stream xdr; | |
4865 | struct compound_hdr hdr; | |
4866 | int status; | |
4867 | ||
4868 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4869 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4870 | if (status) |
4871 | goto out; | |
4872 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4873 | if (status) |
4874 | goto out; | |
4875 | status = decode_putfh(&xdr); | |
4876 | if (status) | |
4877 | goto out; | |
4878 | status = decode_lockt(&xdr, res); | |
4879 | out: | |
4880 | return status; | |
4881 | } | |
4882 | ||
4883 | /* | |
4884 | * Decode LOCKU response | |
4885 | */ | |
8687b63a | 4886 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) |
1da177e4 LT |
4887 | { |
4888 | struct xdr_stream xdr; | |
4889 | struct compound_hdr hdr; | |
4890 | int status; | |
4891 | ||
4892 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4893 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4894 | if (status) |
4895 | goto out; | |
4896 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4897 | if (status) |
4898 | goto out; | |
4899 | status = decode_putfh(&xdr); | |
4900 | if (status) | |
4901 | goto out; | |
4902 | status = decode_locku(&xdr, res); | |
4903 | out: | |
4904 | return status; | |
4905 | } | |
4906 | ||
4907 | /* | |
4908 | * Decode READLINK response | |
4909 | */ | |
f50c7000 BH |
4910 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, |
4911 | struct nfs4_readlink_res *res) | |
1da177e4 LT |
4912 | { |
4913 | struct xdr_stream xdr; | |
4914 | struct compound_hdr hdr; | |
4915 | int status; | |
4916 | ||
4917 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4918 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4919 | if (status) |
4920 | goto out; | |
4921 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4922 | if (status) |
4923 | goto out; | |
4924 | status = decode_putfh(&xdr); | |
4925 | if (status) | |
4926 | goto out; | |
4927 | status = decode_readlink(&xdr, rqstp); | |
4928 | out: | |
4929 | return status; | |
4930 | } | |
4931 | ||
4932 | /* | |
4933 | * Decode READDIR response | |
4934 | */ | |
8687b63a | 4935 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) |
1da177e4 LT |
4936 | { |
4937 | struct xdr_stream xdr; | |
4938 | struct compound_hdr hdr; | |
4939 | int status; | |
4940 | ||
4941 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4942 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4943 | if (status) |
4944 | goto out; | |
4945 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4946 | if (status) |
4947 | goto out; | |
4948 | status = decode_putfh(&xdr); | |
4949 | if (status) | |
4950 | goto out; | |
4951 | status = decode_readdir(&xdr, rqstp, res); | |
4952 | out: | |
4953 | return status; | |
4954 | } | |
4955 | ||
4956 | /* | |
4957 | * Decode Read response | |
4958 | */ | |
8687b63a | 4959 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) |
1da177e4 LT |
4960 | { |
4961 | struct xdr_stream xdr; | |
4962 | struct compound_hdr hdr; | |
4963 | int status; | |
4964 | ||
4965 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4966 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4967 | if (status) |
4968 | goto out; | |
4969 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4970 | if (status) |
4971 | goto out; | |
4972 | status = decode_putfh(&xdr); | |
4973 | if (status) | |
4974 | goto out; | |
4975 | status = decode_read(&xdr, rqstp, res); | |
4976 | if (!status) | |
4977 | status = res->count; | |
4978 | out: | |
4979 | return status; | |
4980 | } | |
4981 | ||
4982 | /* | |
4983 | * Decode WRITE response | |
4984 | */ | |
8687b63a | 4985 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4986 | { |
4987 | struct xdr_stream xdr; | |
4988 | struct compound_hdr hdr; | |
4989 | int status; | |
4990 | ||
4991 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4992 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4993 | if (status) |
4994 | goto out; | |
4995 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4996 | if (status) |
4997 | goto out; | |
4998 | status = decode_putfh(&xdr); | |
4999 | if (status) | |
5000 | goto out; | |
5001 | status = decode_write(&xdr, res); | |
4f9838c7 TM |
5002 | if (status) |
5003 | goto out; | |
5004 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
5005 | if (!status) |
5006 | status = res->count; | |
5007 | out: | |
5008 | return status; | |
5009 | } | |
5010 | ||
5011 | /* | |
5012 | * Decode COMMIT response | |
5013 | */ | |
8687b63a | 5014 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
5015 | { |
5016 | struct xdr_stream xdr; | |
5017 | struct compound_hdr hdr; | |
5018 | int status; | |
5019 | ||
5020 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5021 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5022 | if (status) |
5023 | goto out; | |
5024 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5025 | if (status) |
5026 | goto out; | |
5027 | status = decode_putfh(&xdr); | |
5028 | if (status) | |
5029 | goto out; | |
5030 | status = decode_commit(&xdr, res); | |
4f9838c7 TM |
5031 | if (status) |
5032 | goto out; | |
5033 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
5034 | out: |
5035 | return status; | |
5036 | } | |
5037 | ||
5038 | /* | |
5039 | * FSINFO request | |
5040 | */ | |
3dda5e43 BH |
5041 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, |
5042 | struct nfs4_fsinfo_res *res) | |
1da177e4 LT |
5043 | { |
5044 | struct xdr_stream xdr; | |
5045 | struct compound_hdr hdr; | |
5046 | int status; | |
5047 | ||
5048 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5049 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5050 | if (!status) |
5051 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5052 | if (!status) |
5053 | status = decode_putfh(&xdr); | |
5054 | if (!status) | |
3dda5e43 | 5055 | status = decode_fsinfo(&xdr, res->fsinfo); |
1da177e4 LT |
5056 | return status; |
5057 | } | |
5058 | ||
5059 | /* | |
5060 | * PATHCONF request | |
5061 | */ | |
d45b2989 BH |
5062 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, |
5063 | struct nfs4_pathconf_res *res) | |
1da177e4 LT |
5064 | { |
5065 | struct xdr_stream xdr; | |
5066 | struct compound_hdr hdr; | |
5067 | int status; | |
5068 | ||
5069 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5070 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5071 | if (!status) |
5072 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5073 | if (!status) |
5074 | status = decode_putfh(&xdr); | |
5075 | if (!status) | |
d45b2989 | 5076 | status = decode_pathconf(&xdr, res->pathconf); |
1da177e4 LT |
5077 | return status; |
5078 | } | |
5079 | ||
5080 | /* | |
5081 | * STATFS request | |
5082 | */ | |
24ad148a BH |
5083 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, |
5084 | struct nfs4_statfs_res *res) | |
1da177e4 LT |
5085 | { |
5086 | struct xdr_stream xdr; | |
5087 | struct compound_hdr hdr; | |
5088 | int status; | |
5089 | ||
5090 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5091 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5092 | if (!status) |
5093 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5094 | if (!status) |
5095 | status = decode_putfh(&xdr); | |
5096 | if (!status) | |
24ad148a | 5097 | status = decode_statfs(&xdr, res->fsstat); |
1da177e4 LT |
5098 | return status; |
5099 | } | |
5100 | ||
5101 | /* | |
5102 | * GETATTR_BITMAP request | |
5103 | */ | |
8687b63a | 5104 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) |
1da177e4 LT |
5105 | { |
5106 | struct xdr_stream xdr; | |
5107 | struct compound_hdr hdr; | |
5108 | int status; | |
5109 | ||
5110 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
9b7b9fcc AA |
5111 | status = decode_compound_hdr(&xdr, &hdr); |
5112 | if (status) | |
5113 | goto out; | |
5114 | status = decode_sequence(&xdr, &res->seq_res, req); | |
5115 | if (status) | |
1da177e4 LT |
5116 | goto out; |
5117 | if ((status = decode_putfh(&xdr)) != 0) | |
5118 | goto out; | |
5119 | status = decode_server_caps(&xdr, res); | |
5120 | out: | |
5121 | return status; | |
5122 | } | |
5123 | ||
5124 | /* | |
5125 | * Decode RENEW response | |
5126 | */ | |
8687b63a | 5127 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) |
1da177e4 LT |
5128 | { |
5129 | struct xdr_stream xdr; | |
5130 | struct compound_hdr hdr; | |
5131 | int status; | |
5132 | ||
5133 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5134 | status = decode_compound_hdr(&xdr, &hdr); | |
5135 | if (!status) | |
5136 | status = decode_renew(&xdr); | |
5137 | return status; | |
5138 | } | |
5139 | ||
5140 | /* | |
5141 | * a SETCLIENTID request | |
5142 | */ | |
8687b63a | 5143 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, |
adfa6f98 | 5144 | struct nfs_client *clp) |
1da177e4 LT |
5145 | { |
5146 | struct xdr_stream xdr; | |
5147 | struct compound_hdr hdr; | |
5148 | int status; | |
5149 | ||
5150 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5151 | status = decode_compound_hdr(&xdr, &hdr); | |
5152 | if (!status) | |
5153 | status = decode_setclientid(&xdr, clp); | |
1da177e4 LT |
5154 | return status; |
5155 | } | |
5156 | ||
5157 | /* | |
5158 | * a SETCLIENTID_CONFIRM request | |
5159 | */ | |
8687b63a | 5160 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
5161 | { |
5162 | struct xdr_stream xdr; | |
5163 | struct compound_hdr hdr; | |
5164 | int status; | |
5165 | ||
5166 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5167 | status = decode_compound_hdr(&xdr, &hdr); | |
5168 | if (!status) | |
5169 | status = decode_setclientid_confirm(&xdr); | |
5170 | if (!status) | |
5171 | status = decode_putrootfh(&xdr); | |
5172 | if (!status) | |
5173 | status = decode_fsinfo(&xdr, fsinfo); | |
1da177e4 LT |
5174 | return status; |
5175 | } | |
5176 | ||
5177 | /* | |
5178 | * DELEGRETURN request | |
5179 | */ | |
8687b63a | 5180 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) |
1da177e4 LT |
5181 | { |
5182 | struct xdr_stream xdr; | |
5183 | struct compound_hdr hdr; | |
5184 | int status; | |
5185 | ||
5186 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5187 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5188 | if (status) |
5189 | goto out; | |
5190 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
5191 | if (status) | |
fa178f29 TM |
5192 | goto out; |
5193 | status = decode_putfh(&xdr); | |
5194 | if (status != 0) | |
5195 | goto out; | |
5196 | status = decode_delegreturn(&xdr); | |
5197 | decode_getfattr(&xdr, res->fattr, res->server); | |
5198 | out: | |
1da177e4 LT |
5199 | return status; |
5200 | } | |
5201 | ||
683b57b4 TM |
5202 | /* |
5203 | * FS_LOCATIONS request | |
5204 | */ | |
22958463 BH |
5205 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, |
5206 | struct nfs4_fs_locations_res *res) | |
683b57b4 TM |
5207 | { |
5208 | struct xdr_stream xdr; | |
5209 | struct compound_hdr hdr; | |
5210 | int status; | |
5211 | ||
5212 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5213 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5214 | if (status) |
5215 | goto out; | |
5216 | status = decode_sequence(&xdr, &res->seq_res, req); | |
5217 | if (status) | |
683b57b4 TM |
5218 | goto out; |
5219 | if ((status = decode_putfh(&xdr)) != 0) | |
5220 | goto out; | |
5221 | if ((status = decode_lookup(&xdr)) != 0) | |
5222 | goto out; | |
5223 | xdr_enter_page(&xdr, PAGE_SIZE); | |
22958463 BH |
5224 | status = decode_getfattr(&xdr, &res->fs_locations->fattr, |
5225 | res->fs_locations->server); | |
683b57b4 TM |
5226 | out: |
5227 | return status; | |
5228 | } | |
5229 | ||
99fe60d0 BH |
5230 | #if defined(CONFIG_NFS_V4_1) |
5231 | /* | |
5232 | * EXCHANGE_ID request | |
5233 | */ | |
5234 | static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, | |
5235 | void *res) | |
5236 | { | |
5237 | struct xdr_stream xdr; | |
5238 | struct compound_hdr hdr; | |
5239 | int status; | |
5240 | ||
5241 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5242 | status = decode_compound_hdr(&xdr, &hdr); | |
5243 | if (!status) | |
5244 | status = decode_exchange_id(&xdr, res); | |
5245 | return status; | |
5246 | } | |
2050f0cc | 5247 | |
fc931582 AA |
5248 | /* |
5249 | * a CREATE_SESSION request | |
5250 | */ | |
5251 | static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, | |
5252 | struct nfs41_create_session_res *res) | |
5253 | { | |
5254 | struct xdr_stream xdr; | |
5255 | struct compound_hdr hdr; | |
5256 | int status; | |
5257 | ||
5258 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5259 | status = decode_compound_hdr(&xdr, &hdr); | |
5260 | if (!status) | |
5261 | status = decode_create_session(&xdr, res); | |
5262 | return status; | |
5263 | } | |
5264 | ||
0f3e66c6 AA |
5265 | /* |
5266 | * a DESTROY_SESSION request | |
5267 | */ | |
5268 | static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, | |
5269 | void *dummy) | |
5270 | { | |
5271 | struct xdr_stream xdr; | |
5272 | struct compound_hdr hdr; | |
5273 | int status; | |
5274 | ||
5275 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5276 | status = decode_compound_hdr(&xdr, &hdr); | |
5277 | if (!status) | |
5278 | status = decode_destroy_session(&xdr, dummy); | |
5279 | return status; | |
5280 | } | |
5281 | ||
fc01cea9 AA |
5282 | /* |
5283 | * a SEQUENCE request | |
5284 | */ | |
5285 | static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, | |
5286 | struct nfs4_sequence_res *res) | |
5287 | { | |
5288 | struct xdr_stream xdr; | |
5289 | struct compound_hdr hdr; | |
5290 | int status; | |
5291 | ||
5292 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5293 | status = decode_compound_hdr(&xdr, &hdr); | |
5294 | if (!status) | |
5295 | status = decode_sequence(&xdr, res, rqstp); | |
5296 | return status; | |
5297 | } | |
5298 | ||
2050f0cc AA |
5299 | /* |
5300 | * a GET_LEASE_TIME request | |
5301 | */ | |
5302 | static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, | |
5303 | struct nfs4_get_lease_time_res *res) | |
5304 | { | |
5305 | struct xdr_stream xdr; | |
5306 | struct compound_hdr hdr; | |
5307 | int status; | |
5308 | ||
5309 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5310 | status = decode_compound_hdr(&xdr, &hdr); | |
5311 | if (!status) | |
5312 | status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); | |
5313 | if (!status) | |
5314 | status = decode_putrootfh(&xdr); | |
5315 | if (!status) | |
5316 | status = decode_fsinfo(&xdr, res->lr_fsinfo); | |
5317 | return status; | |
5318 | } | |
99fe60d0 BH |
5319 | #endif /* CONFIG_NFS_V4_1 */ |
5320 | ||
0dbb4c67 | 5321 | __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) |
1da177e4 LT |
5322 | { |
5323 | uint32_t bitmap[2] = {0}; | |
5324 | uint32_t len; | |
5325 | ||
5326 | if (!*p++) { | |
5327 | if (!*p) | |
5328 | return ERR_PTR(-EAGAIN); | |
5329 | entry->eof = 1; | |
5330 | return ERR_PTR(-EBADCOOKIE); | |
5331 | } | |
5332 | ||
5333 | entry->prev_cookie = entry->cookie; | |
5334 | p = xdr_decode_hyper(p, &entry->cookie); | |
5335 | entry->len = ntohl(*p++); | |
5336 | entry->name = (const char *) p; | |
5337 | p += XDR_QUADLEN(entry->len); | |
5338 | ||
5339 | /* | |
5340 | * In case the server doesn't return an inode number, | |
5341 | * we fake one here. (We don't use inode number 0, | |
5342 | * since glibc seems to choke on it...) | |
5343 | */ | |
5344 | entry->ino = 1; | |
5345 | ||
5346 | len = ntohl(*p++); /* bitmap length */ | |
5347 | if (len-- > 0) { | |
5348 | bitmap[0] = ntohl(*p++); | |
5349 | if (len-- > 0) { | |
5350 | bitmap[1] = ntohl(*p++); | |
5351 | p += len; | |
5352 | } | |
5353 | } | |
5354 | len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ | |
5355 | if (len > 0) { | |
97d312d0 MN |
5356 | if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { |
5357 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; | |
5358 | /* Ignore the return value of rdattr_error for now */ | |
5359 | p++; | |
5360 | len--; | |
5361 | } | |
1da177e4 LT |
5362 | if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) |
5363 | xdr_decode_hyper(p, &entry->ino); | |
5364 | else if (bitmap[0] == FATTR4_WORD0_FILEID) | |
5365 | xdr_decode_hyper(p, &entry->ino); | |
5366 | p += len; | |
5367 | } | |
5368 | ||
5369 | entry->eof = !p[0] && p[1]; | |
5370 | return p; | |
5371 | } | |
5372 | ||
5373 | /* | |
5374 | * We need to translate between nfs status return values and | |
5375 | * the local errno values which may not be the same. | |
5376 | */ | |
5377 | static struct { | |
5378 | int stat; | |
5379 | int errno; | |
5380 | } nfs_errtbl[] = { | |
5381 | { NFS4_OK, 0 }, | |
856dff3d BH |
5382 | { NFS4ERR_PERM, -EPERM }, |
5383 | { NFS4ERR_NOENT, -ENOENT }, | |
5384 | { NFS4ERR_IO, -errno_NFSERR_IO}, | |
5385 | { NFS4ERR_NXIO, -ENXIO }, | |
5386 | { NFS4ERR_ACCESS, -EACCES }, | |
5387 | { NFS4ERR_EXIST, -EEXIST }, | |
5388 | { NFS4ERR_XDEV, -EXDEV }, | |
5389 | { NFS4ERR_NOTDIR, -ENOTDIR }, | |
5390 | { NFS4ERR_ISDIR, -EISDIR }, | |
5391 | { NFS4ERR_INVAL, -EINVAL }, | |
5392 | { NFS4ERR_FBIG, -EFBIG }, | |
5393 | { NFS4ERR_NOSPC, -ENOSPC }, | |
5394 | { NFS4ERR_ROFS, -EROFS }, | |
5395 | { NFS4ERR_MLINK, -EMLINK }, | |
5396 | { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, | |
5397 | { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, | |
5398 | { NFS4ERR_DQUOT, -EDQUOT }, | |
5399 | { NFS4ERR_STALE, -ESTALE }, | |
5400 | { NFS4ERR_BADHANDLE, -EBADHANDLE }, | |
5401 | { NFS4ERR_BADOWNER, -EINVAL }, | |
5402 | { NFS4ERR_BADNAME, -EINVAL }, | |
5403 | { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, | |
5404 | { NFS4ERR_NOTSUPP, -ENOTSUPP }, | |
5405 | { NFS4ERR_TOOSMALL, -ETOOSMALL }, | |
5406 | { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, | |
5407 | { NFS4ERR_BADTYPE, -EBADTYPE }, | |
5408 | { NFS4ERR_LOCKED, -EAGAIN }, | |
5409 | { NFS4ERR_RESOURCE, -EREMOTEIO }, | |
5410 | { NFS4ERR_SYMLINK, -ELOOP }, | |
5411 | { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, | |
5412 | { NFS4ERR_DEADLOCK, -EDEADLK }, | |
5413 | { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs | |
1da177e4 LT |
5414 | * to be handled by a |
5415 | * middle-layer. | |
5416 | */ | |
856dff3d | 5417 | { -1, -EIO } |
1da177e4 LT |
5418 | }; |
5419 | ||
5420 | /* | |
5421 | * Convert an NFS error code to a local one. | |
5422 | * This one is used jointly by NFSv2 and NFSv3. | |
5423 | */ | |
5424 | static int | |
0a8ea437 | 5425 | nfs4_stat_to_errno(int stat) |
1da177e4 LT |
5426 | { |
5427 | int i; | |
5428 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { | |
5429 | if (nfs_errtbl[i].stat == stat) | |
5430 | return nfs_errtbl[i].errno; | |
5431 | } | |
5432 | if (stat <= 10000 || stat > 10100) { | |
5433 | /* The server is looney tunes. */ | |
856dff3d | 5434 | return -ESERVERFAULT; |
1da177e4 LT |
5435 | } |
5436 | /* If we cannot translate the error, the recovery routines should | |
5437 | * handle it. | |
5438 | * Note: remaining NFSv4 error codes have values > 10000, so should | |
5439 | * not conflict with native Linux error codes. | |
5440 | */ | |
856dff3d | 5441 | return -stat; |
1da177e4 LT |
5442 | } |
5443 | ||
1da177e4 LT |
5444 | #define PROC(proc, argtype, restype) \ |
5445 | [NFSPROC4_CLNT_##proc] = { \ | |
5446 | .p_proc = NFSPROC4_COMPOUND, \ | |
5447 | .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ | |
5448 | .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ | |
2bea90d4 CL |
5449 | .p_arglen = NFS4_##argtype##_sz, \ |
5450 | .p_replen = NFS4_##restype##_sz, \ | |
cc0175c1 CL |
5451 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
5452 | .p_name = #proc, \ | |
05d564fe | 5453 | } |
1da177e4 LT |
5454 | |
5455 | struct rpc_procinfo nfs4_procedures[] = { | |
5456 | PROC(READ, enc_read, dec_read), | |
5457 | PROC(WRITE, enc_write, dec_write), | |
5458 | PROC(COMMIT, enc_commit, dec_commit), | |
5459 | PROC(OPEN, enc_open, dec_open), | |
5460 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), | |
5461 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), | |
5462 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), | |
5463 | PROC(CLOSE, enc_close, dec_close), | |
5464 | PROC(SETATTR, enc_setattr, dec_setattr), | |
5465 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), | |
5466 | PROC(RENEW, enc_renew, dec_renew), | |
5467 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), | |
5468 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), | |
5469 | PROC(LOCK, enc_lock, dec_lock), | |
5470 | PROC(LOCKT, enc_lockt, dec_lockt), | |
5471 | PROC(LOCKU, enc_locku, dec_locku), | |
5472 | PROC(ACCESS, enc_access, dec_access), | |
5473 | PROC(GETATTR, enc_getattr, dec_getattr), | |
5474 | PROC(LOOKUP, enc_lookup, dec_lookup), | |
5475 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), | |
5476 | PROC(REMOVE, enc_remove, dec_remove), | |
5477 | PROC(RENAME, enc_rename, dec_rename), | |
5478 | PROC(LINK, enc_link, dec_link), | |
5479 | PROC(SYMLINK, enc_symlink, dec_symlink), | |
5480 | PROC(CREATE, enc_create, dec_create), | |
5481 | PROC(PATHCONF, enc_pathconf, dec_pathconf), | |
5482 | PROC(STATFS, enc_statfs, dec_statfs), | |
5483 | PROC(READLINK, enc_readlink, dec_readlink), | |
5484 | PROC(READDIR, enc_readdir, dec_readdir), | |
5485 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), | |
5486 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), | |
029d105e | 5487 | PROC(GETACL, enc_getacl, dec_getacl), |
23ec6965 | 5488 | PROC(SETACL, enc_setacl, dec_setacl), |
683b57b4 | 5489 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), |
99fe60d0 BH |
5490 | #if defined(CONFIG_NFS_V4_1) |
5491 | PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), | |
fc931582 | 5492 | PROC(CREATE_SESSION, enc_create_session, dec_create_session), |
0f3e66c6 | 5493 | PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), |
fc01cea9 | 5494 | PROC(SEQUENCE, enc_sequence, dec_sequence), |
2050f0cc | 5495 | PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), |
99fe60d0 | 5496 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 LT |
5497 | }; |
5498 | ||
5499 | struct rpc_version nfs_version4 = { | |
5500 | .number = 4, | |
e8c96f8c | 5501 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
1da177e4 LT |
5502 | .procs = nfs4_procedures |
5503 | }; | |
5504 | ||
5505 | /* | |
5506 | * Local variables: | |
5507 | * c-basic-offset: 8 | |
5508 | * End: | |
5509 | */ |