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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> | |
1da177e4 LT |
41 | #include <linux/errno.h> |
42 | #include <linux/string.h> | |
43 | #include <linux/in.h> | |
44 | #include <linux/pagemap.h> | |
45 | #include <linux/proc_fs.h> | |
46 | #include <linux/kdev_t.h> | |
47 | #include <linux/sunrpc/clnt.h> | |
2449ea2e | 48 | #include <linux/sunrpc/msg_prot.h> |
1da177e4 LT |
49 | #include <linux/nfs.h> |
50 | #include <linux/nfs4.h> | |
51 | #include <linux/nfs_fs.h> | |
52 | #include <linux/nfs_idmap.h> | |
4ce79717 | 53 | #include "nfs4_fs.h" |
4882ef72 | 54 | #include "internal.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) | |
4882ef72 | 138 | #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_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) | |
18019753 RL |
303 | #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) |
304 | #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) | |
9b7b9fcc AA |
305 | #else /* CONFIG_NFS_V4_1 */ |
306 | #define encode_sequence_maxsz 0 | |
307 | #define decode_sequence_maxsz 0 | |
308 | #endif /* CONFIG_NFS_V4_1 */ | |
309 | ||
1da177e4 LT |
310 | #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ |
311 | #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ | |
312 | #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 313 | encode_sequence_maxsz + \ |
1da177e4 | 314 | encode_putfh_maxsz + \ |
9104a55d | 315 | encode_read_maxsz) |
1da177e4 | 316 | #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 317 | decode_sequence_maxsz + \ |
1da177e4 | 318 | decode_putfh_maxsz + \ |
9104a55d | 319 | decode_read_maxsz) |
1da177e4 | 320 | #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 321 | encode_sequence_maxsz + \ |
1da177e4 | 322 | encode_putfh_maxsz + \ |
9104a55d | 323 | encode_readlink_maxsz) |
1da177e4 | 324 | #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 325 | decode_sequence_maxsz + \ |
1da177e4 | 326 | decode_putfh_maxsz + \ |
9104a55d | 327 | decode_readlink_maxsz) |
1da177e4 | 328 | #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 329 | encode_sequence_maxsz + \ |
1da177e4 | 330 | encode_putfh_maxsz + \ |
9104a55d | 331 | encode_readdir_maxsz) |
1da177e4 | 332 | #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 333 | decode_sequence_maxsz + \ |
1da177e4 | 334 | decode_putfh_maxsz + \ |
9104a55d | 335 | decode_readdir_maxsz) |
1da177e4 | 336 | #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 337 | encode_sequence_maxsz + \ |
1da177e4 | 338 | encode_putfh_maxsz + \ |
9104a55d | 339 | encode_write_maxsz + \ |
4f9838c7 | 340 | encode_getattr_maxsz) |
1da177e4 | 341 | #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 342 | decode_sequence_maxsz + \ |
1da177e4 | 343 | decode_putfh_maxsz + \ |
9104a55d | 344 | decode_write_maxsz + \ |
4f9838c7 | 345 | decode_getattr_maxsz) |
1da177e4 | 346 | #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 347 | encode_sequence_maxsz + \ |
1da177e4 | 348 | encode_putfh_maxsz + \ |
9104a55d | 349 | encode_commit_maxsz + \ |
4f9838c7 | 350 | encode_getattr_maxsz) |
1da177e4 | 351 | #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 352 | decode_sequence_maxsz + \ |
1da177e4 | 353 | decode_putfh_maxsz + \ |
9104a55d | 354 | decode_commit_maxsz + \ |
4f9838c7 | 355 | decode_getattr_maxsz) |
1da177e4 | 356 | #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 357 | encode_sequence_maxsz + \ |
2cebf828 TM |
358 | encode_putfh_maxsz + \ |
359 | encode_savefh_maxsz + \ | |
360 | encode_open_maxsz + \ | |
361 | encode_getfh_maxsz + \ | |
362 | encode_getattr_maxsz + \ | |
363 | encode_restorefh_maxsz + \ | |
364 | encode_getattr_maxsz) | |
1da177e4 | 365 | #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 366 | decode_sequence_maxsz + \ |
2cebf828 TM |
367 | decode_putfh_maxsz + \ |
368 | decode_savefh_maxsz + \ | |
369 | decode_open_maxsz + \ | |
370 | decode_getfh_maxsz + \ | |
371 | decode_getattr_maxsz + \ | |
372 | decode_restorefh_maxsz + \ | |
373 | decode_getattr_maxsz) | |
9104a55d TM |
374 | #define NFS4_enc_open_confirm_sz \ |
375 | (compound_encode_hdr_maxsz + \ | |
376 | encode_putfh_maxsz + \ | |
377 | encode_open_confirm_maxsz) | |
378 | #define NFS4_dec_open_confirm_sz \ | |
379 | (compound_decode_hdr_maxsz + \ | |
380 | decode_putfh_maxsz + \ | |
381 | decode_open_confirm_maxsz) | |
1da177e4 | 382 | #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 383 | encode_sequence_maxsz + \ |
1da177e4 | 384 | encode_putfh_maxsz + \ |
2cebf828 TM |
385 | encode_open_maxsz + \ |
386 | encode_getattr_maxsz) | |
1da177e4 | 387 | #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 388 | decode_sequence_maxsz + \ |
1da177e4 | 389 | decode_putfh_maxsz + \ |
2cebf828 TM |
390 | decode_open_maxsz + \ |
391 | decode_getattr_maxsz) | |
1da177e4 LT |
392 | #define NFS4_enc_open_downgrade_sz \ |
393 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 394 | encode_sequence_maxsz + \ |
9104a55d TM |
395 | encode_putfh_maxsz + \ |
396 | encode_open_downgrade_maxsz + \ | |
397 | encode_getattr_maxsz) | |
1da177e4 LT |
398 | #define NFS4_dec_open_downgrade_sz \ |
399 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 400 | decode_sequence_maxsz + \ |
9104a55d TM |
401 | decode_putfh_maxsz + \ |
402 | decode_open_downgrade_maxsz + \ | |
403 | decode_getattr_maxsz) | |
404 | #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 405 | encode_sequence_maxsz + \ |
9104a55d TM |
406 | encode_putfh_maxsz + \ |
407 | encode_close_maxsz + \ | |
408 | encode_getattr_maxsz) | |
409 | #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 410 | decode_sequence_maxsz + \ |
9104a55d TM |
411 | decode_putfh_maxsz + \ |
412 | decode_close_maxsz + \ | |
413 | decode_getattr_maxsz) | |
414 | #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 415 | encode_sequence_maxsz + \ |
9104a55d TM |
416 | encode_putfh_maxsz + \ |
417 | encode_setattr_maxsz + \ | |
418 | encode_getattr_maxsz) | |
419 | #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 420 | decode_sequence_maxsz + \ |
9104a55d TM |
421 | decode_putfh_maxsz + \ |
422 | decode_setattr_maxsz + \ | |
423 | decode_getattr_maxsz) | |
1da177e4 | 424 | #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 425 | encode_sequence_maxsz + \ |
1da177e4 LT |
426 | encode_putfh_maxsz + \ |
427 | encode_fsinfo_maxsz) | |
428 | #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 429 | decode_sequence_maxsz + \ |
1da177e4 LT |
430 | decode_putfh_maxsz + \ |
431 | decode_fsinfo_maxsz) | |
432 | #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ | |
433 | encode_renew_maxsz) | |
434 | #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ | |
435 | decode_renew_maxsz) | |
436 | #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ | |
437 | encode_setclientid_maxsz) | |
438 | #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ | |
439 | decode_setclientid_maxsz) | |
440 | #define NFS4_enc_setclientid_confirm_sz \ | |
441 | (compound_encode_hdr_maxsz + \ | |
442 | encode_setclientid_confirm_maxsz + \ | |
443 | encode_putrootfh_maxsz + \ | |
444 | encode_fsinfo_maxsz) | |
445 | #define NFS4_dec_setclientid_confirm_sz \ | |
446 | (compound_decode_hdr_maxsz + \ | |
447 | decode_setclientid_confirm_maxsz + \ | |
448 | decode_putrootfh_maxsz + \ | |
449 | decode_fsinfo_maxsz) | |
450 | #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 451 | encode_sequence_maxsz + \ |
1da177e4 | 452 | encode_putfh_maxsz + \ |
9104a55d | 453 | encode_lock_maxsz) |
1da177e4 | 454 | #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 455 | decode_sequence_maxsz + \ |
1da177e4 | 456 | decode_putfh_maxsz + \ |
9104a55d | 457 | decode_lock_maxsz) |
1da177e4 | 458 | #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 459 | encode_sequence_maxsz + \ |
1da177e4 | 460 | encode_putfh_maxsz + \ |
9104a55d TM |
461 | encode_lockt_maxsz) |
462 | #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 463 | decode_sequence_maxsz + \ |
9104a55d TM |
464 | decode_putfh_maxsz + \ |
465 | decode_lockt_maxsz) | |
1da177e4 | 466 | #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 467 | encode_sequence_maxsz + \ |
1da177e4 | 468 | encode_putfh_maxsz + \ |
9104a55d | 469 | encode_locku_maxsz) |
1da177e4 | 470 | #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 471 | decode_sequence_maxsz + \ |
1da177e4 | 472 | decode_putfh_maxsz + \ |
9104a55d | 473 | decode_locku_maxsz) |
1da177e4 | 474 | #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 475 | encode_sequence_maxsz + \ |
1da177e4 | 476 | encode_putfh_maxsz + \ |
76b32999 TM |
477 | encode_access_maxsz + \ |
478 | encode_getattr_maxsz) | |
1da177e4 | 479 | #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 480 | decode_sequence_maxsz + \ |
1da177e4 | 481 | decode_putfh_maxsz + \ |
76b32999 TM |
482 | decode_access_maxsz + \ |
483 | decode_getattr_maxsz) | |
1da177e4 | 484 | #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 485 | encode_sequence_maxsz + \ |
1da177e4 LT |
486 | encode_putfh_maxsz + \ |
487 | encode_getattr_maxsz) | |
488 | #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 489 | decode_sequence_maxsz + \ |
1da177e4 LT |
490 | decode_putfh_maxsz + \ |
491 | decode_getattr_maxsz) | |
492 | #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 493 | encode_sequence_maxsz + \ |
1da177e4 LT |
494 | encode_putfh_maxsz + \ |
495 | encode_lookup_maxsz + \ | |
496 | encode_getattr_maxsz + \ | |
497 | encode_getfh_maxsz) | |
498 | #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 499 | decode_sequence_maxsz + \ |
1da177e4 | 500 | decode_putfh_maxsz + \ |
e6889620 | 501 | decode_lookup_maxsz + \ |
1da177e4 LT |
502 | decode_getattr_maxsz + \ |
503 | decode_getfh_maxsz) | |
504 | #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 505 | encode_sequence_maxsz + \ |
1da177e4 LT |
506 | encode_putrootfh_maxsz + \ |
507 | encode_getattr_maxsz + \ | |
508 | encode_getfh_maxsz) | |
509 | #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 510 | decode_sequence_maxsz + \ |
1da177e4 LT |
511 | decode_putrootfh_maxsz + \ |
512 | decode_getattr_maxsz + \ | |
513 | decode_getfh_maxsz) | |
514 | #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 515 | encode_sequence_maxsz + \ |
1da177e4 | 516 | encode_putfh_maxsz + \ |
16e42959 TM |
517 | encode_remove_maxsz + \ |
518 | encode_getattr_maxsz) | |
1da177e4 | 519 | #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 520 | decode_sequence_maxsz + \ |
1da177e4 | 521 | decode_putfh_maxsz + \ |
6ce18391 | 522 | decode_remove_maxsz + \ |
16e42959 | 523 | decode_getattr_maxsz) |
1da177e4 | 524 | #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 525 | encode_sequence_maxsz + \ |
1da177e4 LT |
526 | encode_putfh_maxsz + \ |
527 | encode_savefh_maxsz + \ | |
528 | encode_putfh_maxsz + \ | |
6caf2c82 TM |
529 | encode_rename_maxsz + \ |
530 | encode_getattr_maxsz + \ | |
531 | encode_restorefh_maxsz + \ | |
532 | encode_getattr_maxsz) | |
1da177e4 | 533 | #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 534 | decode_sequence_maxsz + \ |
1da177e4 LT |
535 | decode_putfh_maxsz + \ |
536 | decode_savefh_maxsz + \ | |
537 | decode_putfh_maxsz + \ | |
6caf2c82 TM |
538 | decode_rename_maxsz + \ |
539 | decode_getattr_maxsz + \ | |
540 | decode_restorefh_maxsz + \ | |
541 | decode_getattr_maxsz) | |
1da177e4 | 542 | #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 543 | encode_sequence_maxsz + \ |
1da177e4 LT |
544 | encode_putfh_maxsz + \ |
545 | encode_savefh_maxsz + \ | |
546 | encode_putfh_maxsz + \ | |
91ba2eee TM |
547 | encode_link_maxsz + \ |
548 | decode_getattr_maxsz + \ | |
549 | encode_restorefh_maxsz + \ | |
550 | decode_getattr_maxsz) | |
1da177e4 | 551 | #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 552 | decode_sequence_maxsz + \ |
1da177e4 LT |
553 | decode_putfh_maxsz + \ |
554 | decode_savefh_maxsz + \ | |
555 | decode_putfh_maxsz + \ | |
91ba2eee TM |
556 | decode_link_maxsz + \ |
557 | decode_getattr_maxsz + \ | |
558 | decode_restorefh_maxsz + \ | |
559 | decode_getattr_maxsz) | |
1da177e4 | 560 | #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 561 | encode_sequence_maxsz + \ |
1da177e4 LT |
562 | encode_putfh_maxsz + \ |
563 | encode_symlink_maxsz + \ | |
564 | encode_getattr_maxsz + \ | |
565 | encode_getfh_maxsz) | |
566 | #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 567 | decode_sequence_maxsz + \ |
1da177e4 LT |
568 | decode_putfh_maxsz + \ |
569 | decode_symlink_maxsz + \ | |
570 | decode_getattr_maxsz + \ | |
571 | decode_getfh_maxsz) | |
572 | #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 573 | encode_sequence_maxsz + \ |
1da177e4 | 574 | encode_putfh_maxsz + \ |
56ae19f3 | 575 | encode_savefh_maxsz + \ |
1da177e4 | 576 | encode_create_maxsz + \ |
56ae19f3 | 577 | encode_getfh_maxsz + \ |
1da177e4 | 578 | encode_getattr_maxsz + \ |
56ae19f3 TM |
579 | encode_restorefh_maxsz + \ |
580 | encode_getattr_maxsz) | |
1da177e4 | 581 | #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 582 | decode_sequence_maxsz + \ |
1da177e4 | 583 | decode_putfh_maxsz + \ |
56ae19f3 | 584 | decode_savefh_maxsz + \ |
1da177e4 | 585 | decode_create_maxsz + \ |
56ae19f3 | 586 | decode_getfh_maxsz + \ |
1da177e4 | 587 | decode_getattr_maxsz + \ |
56ae19f3 TM |
588 | decode_restorefh_maxsz + \ |
589 | decode_getattr_maxsz) | |
1da177e4 | 590 | #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 591 | encode_sequence_maxsz + \ |
1da177e4 LT |
592 | encode_putfh_maxsz + \ |
593 | encode_getattr_maxsz) | |
594 | #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 595 | decode_sequence_maxsz + \ |
1da177e4 LT |
596 | decode_putfh_maxsz + \ |
597 | decode_getattr_maxsz) | |
598 | #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 599 | encode_sequence_maxsz + \ |
1da177e4 | 600 | encode_putfh_maxsz + \ |
9104a55d | 601 | encode_statfs_maxsz) |
1da177e4 | 602 | #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 603 | decode_sequence_maxsz + \ |
1da177e4 | 604 | decode_putfh_maxsz + \ |
9104a55d | 605 | decode_statfs_maxsz) |
1da177e4 | 606 | #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 607 | encode_sequence_maxsz + \ |
ab91f264 | 608 | encode_putfh_maxsz + \ |
1da177e4 LT |
609 | encode_getattr_maxsz) |
610 | #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 611 | decode_sequence_maxsz + \ |
ab91f264 | 612 | decode_putfh_maxsz + \ |
1da177e4 LT |
613 | decode_getattr_maxsz) |
614 | #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 615 | encode_sequence_maxsz + \ |
1da177e4 | 616 | encode_putfh_maxsz + \ |
fa178f29 TM |
617 | encode_delegreturn_maxsz + \ |
618 | encode_getattr_maxsz) | |
1da177e4 | 619 | #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 620 | decode_sequence_maxsz + \ |
fa178f29 TM |
621 | decode_delegreturn_maxsz + \ |
622 | decode_getattr_maxsz) | |
029d105e | 623 | #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 624 | encode_sequence_maxsz + \ |
029d105e | 625 | encode_putfh_maxsz + \ |
9104a55d | 626 | encode_getacl_maxsz) |
029d105e | 627 | #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 628 | decode_sequence_maxsz + \ |
029d105e | 629 | decode_putfh_maxsz + \ |
9104a55d | 630 | decode_getacl_maxsz) |
23ec6965 | 631 | #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 632 | encode_sequence_maxsz + \ |
23ec6965 | 633 | encode_putfh_maxsz + \ |
9104a55d | 634 | encode_setacl_maxsz) |
23ec6965 | 635 | #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 636 | decode_sequence_maxsz + \ |
23ec6965 | 637 | decode_putfh_maxsz + \ |
9104a55d | 638 | decode_setacl_maxsz) |
683b57b4 TM |
639 | #define NFS4_enc_fs_locations_sz \ |
640 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 641 | encode_sequence_maxsz + \ |
683b57b4 | 642 | encode_putfh_maxsz + \ |
e6889620 TM |
643 | encode_lookup_maxsz + \ |
644 | encode_fs_locations_maxsz) | |
683b57b4 TM |
645 | #define NFS4_dec_fs_locations_sz \ |
646 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 647 | decode_sequence_maxsz + \ |
683b57b4 | 648 | decode_putfh_maxsz + \ |
e6889620 TM |
649 | decode_lookup_maxsz + \ |
650 | decode_fs_locations_maxsz) | |
99fe60d0 BH |
651 | #if defined(CONFIG_NFS_V4_1) |
652 | #define NFS4_enc_exchange_id_sz \ | |
653 | (compound_encode_hdr_maxsz + \ | |
654 | encode_exchange_id_maxsz) | |
655 | #define NFS4_dec_exchange_id_sz \ | |
656 | (compound_decode_hdr_maxsz + \ | |
657 | decode_exchange_id_maxsz) | |
fc931582 AA |
658 | #define NFS4_enc_create_session_sz \ |
659 | (compound_encode_hdr_maxsz + \ | |
660 | encode_create_session_maxsz) | |
661 | #define NFS4_dec_create_session_sz \ | |
662 | (compound_decode_hdr_maxsz + \ | |
663 | decode_create_session_maxsz) | |
0f3e66c6 AA |
664 | #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ |
665 | encode_destroy_session_maxsz) | |
666 | #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ | |
667 | decode_destroy_session_maxsz) | |
fc01cea9 AA |
668 | #define NFS4_enc_sequence_sz \ |
669 | (compound_decode_hdr_maxsz + \ | |
670 | encode_sequence_maxsz) | |
671 | #define NFS4_dec_sequence_sz \ | |
672 | (compound_decode_hdr_maxsz + \ | |
673 | decode_sequence_maxsz) | |
2050f0cc AA |
674 | #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ |
675 | encode_sequence_maxsz + \ | |
676 | encode_putrootfh_maxsz + \ | |
677 | encode_fsinfo_maxsz) | |
678 | #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ | |
679 | decode_sequence_maxsz + \ | |
680 | decode_putrootfh_maxsz + \ | |
681 | decode_fsinfo_maxsz) | |
18019753 RL |
682 | #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ |
683 | encode_sequence_maxsz + \ | |
684 | encode_reclaim_complete_maxsz) | |
685 | #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ | |
686 | decode_sequence_maxsz + \ | |
687 | decode_reclaim_complete_maxsz) | |
2449ea2e AB |
688 | |
689 | const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + | |
690 | compound_encode_hdr_maxsz + | |
691 | encode_sequence_maxsz + | |
692 | encode_putfh_maxsz + | |
693 | encode_getattr_maxsz) * | |
694 | XDR_UNIT); | |
695 | ||
696 | const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + | |
697 | compound_decode_hdr_maxsz + | |
698 | decode_sequence_maxsz + | |
699 | decode_putfh_maxsz) * | |
700 | XDR_UNIT); | |
99fe60d0 | 701 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 | 702 | |
bca79478 TM |
703 | static const umode_t nfs_type2fmt[] = { |
704 | [NF4BAD] = 0, | |
705 | [NF4REG] = S_IFREG, | |
706 | [NF4DIR] = S_IFDIR, | |
707 | [NF4BLK] = S_IFBLK, | |
708 | [NF4CHR] = S_IFCHR, | |
709 | [NF4LNK] = S_IFLNK, | |
710 | [NF4SOCK] = S_IFSOCK, | |
711 | [NF4FIFO] = S_IFIFO, | |
712 | [NF4ATTRDIR] = 0, | |
713 | [NF4NAMEDATTR] = 0, | |
1da177e4 LT |
714 | }; |
715 | ||
716 | struct compound_hdr { | |
717 | int32_t status; | |
718 | uint32_t nops; | |
d017931c | 719 | __be32 * nops_p; |
1da177e4 LT |
720 | uint32_t taglen; |
721 | char * tag; | |
0c4e8c18 | 722 | uint32_t replen; /* expected reply words */ |
66cc0429 | 723 | u32 minorversion; |
1da177e4 LT |
724 | }; |
725 | ||
13c65ce9 BH |
726 | static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) |
727 | { | |
728 | __be32 *p = xdr_reserve_space(xdr, nbytes); | |
729 | BUG_ON(!p); | |
730 | return p; | |
731 | } | |
1da177e4 LT |
732 | |
733 | static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) | |
734 | { | |
8687b63a | 735 | __be32 *p; |
1da177e4 LT |
736 | |
737 | p = xdr_reserve_space(xdr, 4 + len); | |
738 | BUG_ON(p == NULL); | |
739 | xdr_encode_opaque(p, str, len); | |
740 | } | |
741 | ||
0c4e8c18 BH |
742 | static void encode_compound_hdr(struct xdr_stream *xdr, |
743 | struct rpc_rqst *req, | |
744 | struct compound_hdr *hdr) | |
1da177e4 | 745 | { |
8687b63a | 746 | __be32 *p; |
0c4e8c18 BH |
747 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
748 | ||
749 | /* initialize running count of expected bytes in reply. | |
750 | * NOTE: the replied tag SHOULD be the same is the one sent, | |
751 | * but this is not required as a MUST for the server to do so. */ | |
752 | hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; | |
1da177e4 LT |
753 | |
754 | dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); | |
755 | BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); | |
811652bd BH |
756 | p = reserve_space(xdr, 4 + hdr->taglen + 8); |
757 | p = xdr_encode_opaque(p, hdr->tag, hdr->taglen); | |
e75bc1c8 | 758 | *p++ = cpu_to_be32(hdr->minorversion); |
d017931c | 759 | hdr->nops_p = p; |
34558513 | 760 | *p = cpu_to_be32(hdr->nops); |
d017931c AA |
761 | } |
762 | ||
763 | static void encode_nops(struct compound_hdr *hdr) | |
764 | { | |
fc931582 | 765 | BUG_ON(hdr->nops > NFS4_MAX_OPS); |
d017931c | 766 | *hdr->nops_p = htonl(hdr->nops); |
1da177e4 LT |
767 | } |
768 | ||
769 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) | |
770 | { | |
8687b63a | 771 | __be32 *p; |
1da177e4 LT |
772 | |
773 | p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); | |
774 | BUG_ON(p == NULL); | |
775 | xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); | |
776 | } | |
777 | ||
cf8cdbe5 | 778 | static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) |
1da177e4 LT |
779 | { |
780 | char owner_name[IDMAP_NAMESZ]; | |
781 | char owner_group[IDMAP_NAMESZ]; | |
782 | int owner_namelen = 0; | |
783 | int owner_grouplen = 0; | |
8687b63a AV |
784 | __be32 *p; |
785 | __be32 *q; | |
1da177e4 LT |
786 | int len; |
787 | uint32_t bmval0 = 0; | |
788 | uint32_t bmval1 = 0; | |
1da177e4 LT |
789 | |
790 | /* | |
791 | * We reserve enough space to write the entire attribute buffer at once. | |
792 | * In the worst-case, this would be | |
793 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) | |
794 | * = 36 bytes, plus any contribution from variable-length fields | |
23ec6965 | 795 | * such as owner/group. |
1da177e4 LT |
796 | */ |
797 | len = 16; | |
798 | ||
799 | /* Sigh */ | |
800 | if (iap->ia_valid & ATTR_SIZE) | |
801 | len += 8; | |
802 | if (iap->ia_valid & ATTR_MODE) | |
803 | len += 4; | |
804 | if (iap->ia_valid & ATTR_UID) { | |
7539bbab | 805 | owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); |
1da177e4 | 806 | if (owner_namelen < 0) { |
fe82a183 CL |
807 | dprintk("nfs: couldn't resolve uid %d to string\n", |
808 | iap->ia_uid); | |
1da177e4 LT |
809 | /* XXX */ |
810 | strcpy(owner_name, "nobody"); | |
811 | owner_namelen = sizeof("nobody") - 1; | |
812 | /* goto out; */ | |
813 | } | |
814 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); | |
815 | } | |
816 | if (iap->ia_valid & ATTR_GID) { | |
7539bbab | 817 | owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); |
1da177e4 | 818 | if (owner_grouplen < 0) { |
fe82a183 CL |
819 | dprintk("nfs: couldn't resolve gid %d to string\n", |
820 | iap->ia_gid); | |
1da177e4 LT |
821 | strcpy(owner_group, "nobody"); |
822 | owner_grouplen = sizeof("nobody") - 1; | |
823 | /* goto out; */ | |
824 | } | |
825 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); | |
826 | } | |
827 | if (iap->ia_valid & ATTR_ATIME_SET) | |
828 | len += 16; | |
829 | else if (iap->ia_valid & ATTR_ATIME) | |
830 | len += 4; | |
831 | if (iap->ia_valid & ATTR_MTIME_SET) | |
832 | len += 16; | |
833 | else if (iap->ia_valid & ATTR_MTIME) | |
834 | len += 4; | |
13c65ce9 | 835 | p = reserve_space(xdr, len); |
1da177e4 LT |
836 | |
837 | /* | |
838 | * We write the bitmap length now, but leave the bitmap and the attribute | |
839 | * buffer length to be backfilled at the end of this routine. | |
840 | */ | |
e75bc1c8 | 841 | *p++ = cpu_to_be32(2); |
1da177e4 LT |
842 | q = p; |
843 | p += 3; | |
844 | ||
845 | if (iap->ia_valid & ATTR_SIZE) { | |
846 | bmval0 |= FATTR4_WORD0_SIZE; | |
b95be5a9 | 847 | p = xdr_encode_hyper(p, iap->ia_size); |
1da177e4 LT |
848 | } |
849 | if (iap->ia_valid & ATTR_MODE) { | |
850 | bmval1 |= FATTR4_WORD1_MODE; | |
e75bc1c8 | 851 | *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); |
1da177e4 LT |
852 | } |
853 | if (iap->ia_valid & ATTR_UID) { | |
854 | bmval1 |= FATTR4_WORD1_OWNER; | |
811652bd | 855 | p = xdr_encode_opaque(p, owner_name, owner_namelen); |
1da177e4 LT |
856 | } |
857 | if (iap->ia_valid & ATTR_GID) { | |
858 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; | |
811652bd | 859 | p = xdr_encode_opaque(p, owner_group, owner_grouplen); |
1da177e4 LT |
860 | } |
861 | if (iap->ia_valid & ATTR_ATIME_SET) { | |
862 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
e75bc1c8 BH |
863 | *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); |
864 | *p++ = cpu_to_be32(0); | |
d3f6baaa TM |
865 | *p++ = cpu_to_be32(iap->ia_atime.tv_sec); |
866 | *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); | |
1da177e4 LT |
867 | } |
868 | else if (iap->ia_valid & ATTR_ATIME) { | |
869 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
e75bc1c8 | 870 | *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); |
1da177e4 LT |
871 | } |
872 | if (iap->ia_valid & ATTR_MTIME_SET) { | |
873 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
e75bc1c8 BH |
874 | *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); |
875 | *p++ = cpu_to_be32(0); | |
876 | *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); | |
877 | *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); | |
1da177e4 LT |
878 | } |
879 | else if (iap->ia_valid & ATTR_MTIME) { | |
880 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
e75bc1c8 | 881 | *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); |
1da177e4 | 882 | } |
6c0195a4 | 883 | |
1da177e4 LT |
884 | /* |
885 | * Now we backfill the bitmap and the attribute buffer length. | |
886 | */ | |
887 | if (len != ((char *)p - (char *)q) + 4) { | |
fe82a183 | 888 | printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", |
1da177e4 LT |
889 | len, ((char *)p - (char *)q) + 4); |
890 | BUG(); | |
891 | } | |
892 | len = (char *)p - (char *)q - 12; | |
893 | *q++ = htonl(bmval0); | |
894 | *q++ = htonl(bmval1); | |
34558513 | 895 | *q = htonl(len); |
1da177e4 | 896 | |
1da177e4 | 897 | /* out: */ |
1da177e4 LT |
898 | } |
899 | ||
cf8cdbe5 | 900 | static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) |
1da177e4 | 901 | { |
8687b63a | 902 | __be32 *p; |
1da177e4 | 903 | |
13c65ce9 | 904 | p = reserve_space(xdr, 8); |
e75bc1c8 | 905 | *p++ = cpu_to_be32(OP_ACCESS); |
34558513 | 906 | *p = cpu_to_be32(access); |
d017931c | 907 | hdr->nops++; |
dadf0c27 | 908 | hdr->replen += decode_access_maxsz; |
1da177e4 LT |
909 | } |
910 | ||
cf8cdbe5 | 911 | static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 912 | { |
8687b63a | 913 | __be32 *p; |
1da177e4 | 914 | |
13c65ce9 | 915 | p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); |
e75bc1c8 BH |
916 | *p++ = cpu_to_be32(OP_CLOSE); |
917 | *p++ = cpu_to_be32(arg->seqid->sequence->counter); | |
34558513 | 918 | xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
d017931c | 919 | hdr->nops++; |
dadf0c27 | 920 | hdr->replen += decode_close_maxsz; |
1da177e4 LT |
921 | } |
922 | ||
cf8cdbe5 | 923 | static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 924 | { |
8687b63a | 925 | __be32 *p; |
6c0195a4 | 926 | |
13c65ce9 | 927 | p = reserve_space(xdr, 16); |
e75bc1c8 | 928 | *p++ = cpu_to_be32(OP_COMMIT); |
b95be5a9 | 929 | p = xdr_encode_hyper(p, args->offset); |
34558513 | 930 | *p = cpu_to_be32(args->count); |
d017931c | 931 | hdr->nops++; |
dadf0c27 | 932 | hdr->replen += decode_commit_maxsz; |
1da177e4 LT |
933 | } |
934 | ||
cf8cdbe5 | 935 | static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) |
1da177e4 | 936 | { |
8687b63a | 937 | __be32 *p; |
6c0195a4 | 938 | |
13c65ce9 | 939 | p = reserve_space(xdr, 8); |
e75bc1c8 | 940 | *p++ = cpu_to_be32(OP_CREATE); |
34558513 | 941 | *p = cpu_to_be32(create->ftype); |
1da177e4 LT |
942 | |
943 | switch (create->ftype) { | |
944 | case NF4LNK: | |
13c65ce9 | 945 | p = reserve_space(xdr, 4); |
34558513 | 946 | *p = cpu_to_be32(create->u.symlink.len); |
94a6d753 | 947 | xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); |
1da177e4 LT |
948 | break; |
949 | ||
950 | case NF4BLK: case NF4CHR: | |
13c65ce9 | 951 | p = reserve_space(xdr, 8); |
e75bc1c8 | 952 | *p++ = cpu_to_be32(create->u.device.specdata1); |
34558513 | 953 | *p = cpu_to_be32(create->u.device.specdata2); |
1da177e4 LT |
954 | break; |
955 | ||
956 | default: | |
957 | break; | |
958 | } | |
959 | ||
811652bd | 960 | encode_string(xdr, create->name->len, create->name->name); |
d017931c | 961 | hdr->nops++; |
dadf0c27 | 962 | hdr->replen += decode_create_maxsz; |
1da177e4 | 963 | |
cf8cdbe5 | 964 | encode_attrs(xdr, create->attrs, create->server); |
1da177e4 LT |
965 | } |
966 | ||
cf8cdbe5 | 967 | static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) |
1da177e4 | 968 | { |
05d564fe | 969 | __be32 *p; |
1da177e4 | 970 | |
13c65ce9 | 971 | p = reserve_space(xdr, 12); |
e75bc1c8 BH |
972 | *p++ = cpu_to_be32(OP_GETATTR); |
973 | *p++ = cpu_to_be32(1); | |
34558513 | 974 | *p = cpu_to_be32(bitmap); |
d017931c | 975 | hdr->nops++; |
dadf0c27 | 976 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
977 | } |
978 | ||
cf8cdbe5 | 979 | static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) |
1da177e4 | 980 | { |
05d564fe | 981 | __be32 *p; |
1da177e4 | 982 | |
13c65ce9 | 983 | p = reserve_space(xdr, 16); |
e75bc1c8 BH |
984 | *p++ = cpu_to_be32(OP_GETATTR); |
985 | *p++ = cpu_to_be32(2); | |
986 | *p++ = cpu_to_be32(bm0); | |
34558513 | 987 | *p = cpu_to_be32(bm1); |
d017931c | 988 | hdr->nops++; |
dadf0c27 | 989 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
990 | } |
991 | ||
cf8cdbe5 | 992 | static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 993 | { |
cf8cdbe5 AA |
994 | encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], |
995 | bitmask[1] & nfs4_fattr_bitmap[1], hdr); | |
1da177e4 LT |
996 | } |
997 | ||
cf8cdbe5 | 998 | static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 999 | { |
cf8cdbe5 AA |
1000 | encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
1001 | bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); | |
1da177e4 LT |
1002 | } |
1003 | ||
cf8cdbe5 | 1004 | static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
830b8e33 | 1005 | { |
cf8cdbe5 AA |
1006 | encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], |
1007 | bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); | |
830b8e33 MN |
1008 | } |
1009 | ||
cf8cdbe5 | 1010 | static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1011 | { |
8687b63a | 1012 | __be32 *p; |
1da177e4 | 1013 | |
13c65ce9 | 1014 | p = reserve_space(xdr, 4); |
34558513 | 1015 | *p = cpu_to_be32(OP_GETFH); |
d017931c | 1016 | hdr->nops++; |
dadf0c27 | 1017 | hdr->replen += decode_getfh_maxsz; |
1da177e4 LT |
1018 | } |
1019 | ||
cf8cdbe5 | 1020 | static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1021 | { |
8687b63a | 1022 | __be32 *p; |
1da177e4 | 1023 | |
13c65ce9 | 1024 | p = reserve_space(xdr, 8 + name->len); |
e75bc1c8 | 1025 | *p++ = cpu_to_be32(OP_LINK); |
811652bd | 1026 | xdr_encode_opaque(p, name->name, name->len); |
d017931c | 1027 | hdr->nops++; |
dadf0c27 | 1028 | hdr->replen += decode_link_maxsz; |
1da177e4 LT |
1029 | } |
1030 | ||
911d1aaf TM |
1031 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
1032 | { | |
1033 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) | |
1034 | return block ? NFS4_READW_LT : NFS4_READ_LT; | |
1035 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; | |
1036 | } | |
1037 | ||
1038 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) | |
1039 | { | |
1040 | if (fl->fl_end == OFFSET_MAX) | |
1041 | return ~(uint64_t)0; | |
1042 | return fl->fl_end - fl->fl_start + 1; | |
1043 | } | |
1044 | ||
1da177e4 LT |
1045 | /* |
1046 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 | |
1047 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 | |
1048 | */ | |
cf8cdbe5 | 1049 | static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) |
1da177e4 | 1050 | { |
8687b63a | 1051 | __be32 *p; |
1da177e4 | 1052 | |
13c65ce9 | 1053 | p = reserve_space(xdr, 32); |
e75bc1c8 BH |
1054 | *p++ = cpu_to_be32(OP_LOCK); |
1055 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); | |
1056 | *p++ = cpu_to_be32(args->reclaim); | |
b95be5a9 BH |
1057 | p = xdr_encode_hyper(p, args->fl->fl_start); |
1058 | p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); | |
34558513 | 1059 | *p = cpu_to_be32(args->new_lock_owner); |
911d1aaf | 1060 | if (args->new_lock_owner){ |
13c65ce9 | 1061 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+32); |
e75bc1c8 | 1062 | *p++ = cpu_to_be32(args->open_seqid->sequence->counter); |
93f0cf25 | 1063 | p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); |
e75bc1c8 | 1064 | *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); |
b95be5a9 | 1065 | p = xdr_encode_hyper(p, args->lock_owner.clientid); |
e75bc1c8 | 1066 | *p++ = cpu_to_be32(16); |
93f0cf25 | 1067 | p = xdr_encode_opaque_fixed(p, "lock id:", 8); |
34558513 | 1068 | xdr_encode_hyper(p, args->lock_owner.id); |
1da177e4 LT |
1069 | } |
1070 | else { | |
13c65ce9 | 1071 | p = reserve_space(xdr, NFS4_STATEID_SIZE+4); |
93f0cf25 | 1072 | p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1073 | *p = cpu_to_be32(args->lock_seqid->sequence->counter); |
1da177e4 | 1074 | } |
d017931c | 1075 | hdr->nops++; |
dadf0c27 | 1076 | hdr->replen += decode_lock_maxsz; |
1da177e4 LT |
1077 | } |
1078 | ||
cf8cdbe5 | 1079 | static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) |
1da177e4 | 1080 | { |
8687b63a | 1081 | __be32 *p; |
1da177e4 | 1082 | |
13c65ce9 | 1083 | p = reserve_space(xdr, 52); |
e75bc1c8 BH |
1084 | *p++ = cpu_to_be32(OP_LOCKT); |
1085 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); | |
b95be5a9 BH |
1086 | p = xdr_encode_hyper(p, args->fl->fl_start); |
1087 | p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); | |
1088 | p = xdr_encode_hyper(p, args->lock_owner.clientid); | |
e75bc1c8 | 1089 | *p++ = cpu_to_be32(16); |
93f0cf25 | 1090 | p = xdr_encode_opaque_fixed(p, "lock id:", 8); |
34558513 | 1091 | xdr_encode_hyper(p, args->lock_owner.id); |
d017931c | 1092 | hdr->nops++; |
dadf0c27 | 1093 | hdr->replen += decode_lockt_maxsz; |
1da177e4 LT |
1094 | } |
1095 | ||
cf8cdbe5 | 1096 | static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) |
1da177e4 | 1097 | { |
8687b63a | 1098 | __be32 *p; |
1da177e4 | 1099 | |
13c65ce9 | 1100 | p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); |
e75bc1c8 BH |
1101 | *p++ = cpu_to_be32(OP_LOCKU); |
1102 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); | |
1103 | *p++ = cpu_to_be32(args->seqid->sequence->counter); | |
93f0cf25 | 1104 | p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); |
b95be5a9 | 1105 | p = xdr_encode_hyper(p, args->fl->fl_start); |
34558513 | 1106 | xdr_encode_hyper(p, nfs4_lock_length(args->fl)); |
d017931c | 1107 | hdr->nops++; |
dadf0c27 | 1108 | hdr->replen += decode_locku_maxsz; |
1da177e4 LT |
1109 | } |
1110 | ||
cf8cdbe5 | 1111 | static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 LT |
1112 | { |
1113 | int len = name->len; | |
8687b63a | 1114 | __be32 *p; |
1da177e4 | 1115 | |
13c65ce9 | 1116 | p = reserve_space(xdr, 8 + len); |
e75bc1c8 | 1117 | *p++ = cpu_to_be32(OP_LOOKUP); |
811652bd | 1118 | xdr_encode_opaque(p, name->name, len); |
d017931c | 1119 | hdr->nops++; |
dadf0c27 | 1120 | hdr->replen += decode_lookup_maxsz; |
1da177e4 LT |
1121 | } |
1122 | ||
dc0b027d | 1123 | static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) |
1da177e4 | 1124 | { |
8687b63a | 1125 | __be32 *p; |
1da177e4 | 1126 | |
13c65ce9 | 1127 | p = reserve_space(xdr, 8); |
dc0b027d | 1128 | switch (fmode & (FMODE_READ|FMODE_WRITE)) { |
05d564fe | 1129 | case FMODE_READ: |
e75bc1c8 | 1130 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); |
05d564fe AA |
1131 | break; |
1132 | case FMODE_WRITE: | |
e75bc1c8 | 1133 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); |
05d564fe AA |
1134 | break; |
1135 | case FMODE_READ|FMODE_WRITE: | |
e75bc1c8 | 1136 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); |
05d564fe AA |
1137 | break; |
1138 | default: | |
e75bc1c8 | 1139 | *p++ = cpu_to_be32(0); |
1da177e4 | 1140 | } |
34558513 | 1141 | *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ |
1da177e4 LT |
1142 | } |
1143 | ||
1144 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1145 | { | |
8687b63a | 1146 | __be32 *p; |
1da177e4 LT |
1147 | /* |
1148 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, | |
1149 | * owner 4 = 32 | |
1150 | */ | |
13c65ce9 | 1151 | p = reserve_space(xdr, 8); |
e75bc1c8 | 1152 | *p++ = cpu_to_be32(OP_OPEN); |
34558513 | 1153 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
dc0b027d | 1154 | encode_share_access(xdr, arg->fmode); |
13c65ce9 | 1155 | p = reserve_space(xdr, 28); |
b95be5a9 | 1156 | p = xdr_encode_hyper(p, arg->clientid); |
e75bc1c8 | 1157 | *p++ = cpu_to_be32(16); |
93f0cf25 | 1158 | p = xdr_encode_opaque_fixed(p, "open id:", 8); |
34558513 | 1159 | xdr_encode_hyper(p, arg->id); |
1da177e4 LT |
1160 | } |
1161 | ||
1162 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1163 | { | |
8687b63a | 1164 | __be32 *p; |
4882ef72 | 1165 | struct nfs_client *clp; |
1da177e4 | 1166 | |
13c65ce9 | 1167 | p = reserve_space(xdr, 4); |
1da177e4 | 1168 | switch(arg->open_flags & O_EXCL) { |
05d564fe | 1169 | case 0: |
34558513 | 1170 | *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); |
05d564fe AA |
1171 | encode_attrs(xdr, arg->u.attrs, arg->server); |
1172 | break; | |
1173 | default: | |
4882ef72 | 1174 | clp = arg->server->nfs_client; |
a4432345 | 1175 | if (clp->cl_mvops->minor_version > 0) { |
4882ef72 AB |
1176 | if (nfs4_has_persistent_session(clp)) { |
1177 | *p = cpu_to_be32(NFS4_CREATE_GUARDED); | |
1178 | encode_attrs(xdr, arg->u.attrs, arg->server); | |
1179 | } else { | |
1180 | struct iattr dummy; | |
1181 | ||
1182 | *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); | |
1183 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1184 | dummy.ia_valid = 0; | |
1185 | encode_attrs(xdr, &dummy, arg->server); | |
1186 | } | |
1187 | } else { | |
1188 | *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); | |
1189 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1190 | } | |
1da177e4 LT |
1191 | } |
1192 | } | |
1193 | ||
1194 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1195 | { | |
8687b63a | 1196 | __be32 *p; |
1da177e4 | 1197 | |
13c65ce9 | 1198 | p = reserve_space(xdr, 4); |
1da177e4 | 1199 | switch (arg->open_flags & O_CREAT) { |
05d564fe | 1200 | case 0: |
34558513 | 1201 | *p = cpu_to_be32(NFS4_OPEN_NOCREATE); |
05d564fe AA |
1202 | break; |
1203 | default: | |
1204 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); | |
34558513 | 1205 | *p = cpu_to_be32(NFS4_OPEN_CREATE); |
05d564fe | 1206 | encode_createmode(xdr, arg); |
1da177e4 LT |
1207 | } |
1208 | } | |
1209 | ||
bd7bf9d5 | 1210 | static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) |
1da177e4 | 1211 | { |
8687b63a | 1212 | __be32 *p; |
1da177e4 | 1213 | |
13c65ce9 | 1214 | p = reserve_space(xdr, 4); |
1da177e4 | 1215 | switch (delegation_type) { |
05d564fe | 1216 | case 0: |
34558513 | 1217 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); |
05d564fe AA |
1218 | break; |
1219 | case FMODE_READ: | |
34558513 | 1220 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); |
05d564fe AA |
1221 | break; |
1222 | case FMODE_WRITE|FMODE_READ: | |
34558513 | 1223 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); |
05d564fe AA |
1224 | break; |
1225 | default: | |
1226 | BUG(); | |
1da177e4 LT |
1227 | } |
1228 | } | |
1229 | ||
1230 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) | |
1231 | { | |
8687b63a | 1232 | __be32 *p; |
1da177e4 | 1233 | |
13c65ce9 | 1234 | p = reserve_space(xdr, 4); |
34558513 | 1235 | *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); |
1da177e4 LT |
1236 | encode_string(xdr, name->len, name->name); |
1237 | } | |
1238 | ||
bd7bf9d5 | 1239 | static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) |
1da177e4 | 1240 | { |
8687b63a | 1241 | __be32 *p; |
1da177e4 | 1242 | |
13c65ce9 | 1243 | p = reserve_space(xdr, 4); |
34558513 | 1244 | *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); |
1da177e4 LT |
1245 | encode_delegation_type(xdr, type); |
1246 | } | |
1247 | ||
1248 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) | |
1249 | { | |
8687b63a | 1250 | __be32 *p; |
1da177e4 | 1251 | |
13c65ce9 | 1252 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1253 | *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
34558513 | 1254 | xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1255 | encode_string(xdr, name->len, name->name); |
1256 | } | |
1257 | ||
cf8cdbe5 | 1258 | static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) |
1da177e4 LT |
1259 | { |
1260 | encode_openhdr(xdr, arg); | |
1261 | encode_opentype(xdr, arg); | |
1262 | switch (arg->claim) { | |
05d564fe AA |
1263 | case NFS4_OPEN_CLAIM_NULL: |
1264 | encode_claim_null(xdr, arg->name); | |
1265 | break; | |
1266 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
1267 | encode_claim_previous(xdr, arg->u.delegation_type); | |
1268 | break; | |
1269 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: | |
1270 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); | |
1271 | break; | |
1272 | default: | |
1273 | BUG(); | |
1da177e4 | 1274 | } |
d017931c | 1275 | hdr->nops++; |
dadf0c27 | 1276 | hdr->replen += decode_open_maxsz; |
1da177e4 LT |
1277 | } |
1278 | ||
cf8cdbe5 | 1279 | static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1280 | { |
8687b63a | 1281 | __be32 *p; |
1da177e4 | 1282 | |
13c65ce9 | 1283 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); |
e75bc1c8 | 1284 | *p++ = cpu_to_be32(OP_OPEN_CONFIRM); |
93f0cf25 | 1285 | p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1286 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
d017931c | 1287 | hdr->nops++; |
dadf0c27 | 1288 | hdr->replen += decode_open_confirm_maxsz; |
1da177e4 LT |
1289 | } |
1290 | ||
cf8cdbe5 | 1291 | static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1292 | { |
8687b63a | 1293 | __be32 *p; |
1da177e4 | 1294 | |
13c65ce9 | 1295 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); |
e75bc1c8 | 1296 | *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); |
93f0cf25 | 1297 | p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1298 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
dc0b027d | 1299 | encode_share_access(xdr, arg->fmode); |
d017931c | 1300 | hdr->nops++; |
dadf0c27 | 1301 | hdr->replen += decode_open_downgrade_maxsz; |
1da177e4 LT |
1302 | } |
1303 | ||
cf8cdbe5 | 1304 | static void |
d017931c | 1305 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) |
1da177e4 LT |
1306 | { |
1307 | int len = fh->size; | |
8687b63a | 1308 | __be32 *p; |
1da177e4 | 1309 | |
13c65ce9 | 1310 | p = reserve_space(xdr, 8 + len); |
e75bc1c8 | 1311 | *p++ = cpu_to_be32(OP_PUTFH); |
811652bd | 1312 | xdr_encode_opaque(p, fh->data, len); |
d017931c | 1313 | hdr->nops++; |
dadf0c27 | 1314 | hdr->replen += decode_putfh_maxsz; |
1da177e4 LT |
1315 | } |
1316 | ||
cf8cdbe5 | 1317 | static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1318 | { |
05d564fe | 1319 | __be32 *p; |
6c0195a4 | 1320 | |
13c65ce9 | 1321 | p = reserve_space(xdr, 4); |
34558513 | 1322 | *p = cpu_to_be32(OP_PUTROOTFH); |
d017931c | 1323 | hdr->nops++; |
dadf0c27 | 1324 | hdr->replen += decode_putrootfh_maxsz; |
1da177e4 LT |
1325 | } |
1326 | ||
f11ac8db | 1327 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx) |
1da177e4 | 1328 | { |
1da177e4 | 1329 | nfs4_stateid stateid; |
8687b63a | 1330 | __be32 *p; |
1da177e4 | 1331 | |
13c65ce9 | 1332 | p = reserve_space(xdr, NFS4_STATEID_SIZE); |
1da177e4 | 1333 | if (ctx->state != NULL) { |
f11ac8db | 1334 | nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner); |
34558513 | 1335 | xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); |
1da177e4 | 1336 | } else |
34558513 | 1337 | xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1338 | } |
1339 | ||
cf8cdbe5 | 1340 | static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) |
1da177e4 | 1341 | { |
8687b63a | 1342 | __be32 *p; |
1da177e4 | 1343 | |
13c65ce9 | 1344 | p = reserve_space(xdr, 4); |
34558513 | 1345 | *p = cpu_to_be32(OP_READ); |
1da177e4 | 1346 | |
f11ac8db | 1347 | encode_stateid(xdr, args->context, args->lock_context); |
1da177e4 | 1348 | |
13c65ce9 | 1349 | p = reserve_space(xdr, 12); |
b95be5a9 | 1350 | p = xdr_encode_hyper(p, args->offset); |
34558513 | 1351 | *p = cpu_to_be32(args->count); |
d017931c | 1352 | hdr->nops++; |
dadf0c27 | 1353 | hdr->replen += decode_read_maxsz; |
1da177e4 LT |
1354 | } |
1355 | ||
cf8cdbe5 | 1356 | static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1357 | { |
97d312d0 MN |
1358 | uint32_t attrs[2] = { |
1359 | FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, | |
1360 | FATTR4_WORD1_MOUNTED_ON_FILEID, | |
1361 | }; | |
8687b63a | 1362 | __be32 *p; |
1da177e4 | 1363 | |
13c65ce9 | 1364 | p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); |
e75bc1c8 | 1365 | *p++ = cpu_to_be32(OP_READDIR); |
b95be5a9 | 1366 | p = xdr_encode_hyper(p, readdir->cookie); |
93f0cf25 | 1367 | p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); |
e75bc1c8 BH |
1368 | *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */ |
1369 | *p++ = cpu_to_be32(readdir->count); | |
1370 | *p++ = cpu_to_be32(2); | |
97d312d0 MN |
1371 | /* Switch to mounted_on_fileid if the server supports it */ |
1372 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) | |
1373 | attrs[0] &= ~FATTR4_WORD0_FILEID; | |
1374 | else | |
1375 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
e75bc1c8 | 1376 | *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); |
34558513 | 1377 | *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); |
d017931c | 1378 | hdr->nops++; |
dadf0c27 | 1379 | hdr->replen += decode_readdir_maxsz; |
44109241 FI |
1380 | dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", |
1381 | __func__, | |
eadf4598 TM |
1382 | (unsigned long long)readdir->cookie, |
1383 | ((u32 *)readdir->verifier.data)[0], | |
1384 | ((u32 *)readdir->verifier.data)[1], | |
1385 | attrs[0] & readdir->bitmask[0], | |
1386 | attrs[1] & readdir->bitmask[1]); | |
1da177e4 LT |
1387 | } |
1388 | ||
cf8cdbe5 | 1389 | static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1390 | { |
8687b63a | 1391 | __be32 *p; |
1da177e4 | 1392 | |
13c65ce9 | 1393 | p = reserve_space(xdr, 4); |
34558513 | 1394 | *p = cpu_to_be32(OP_READLINK); |
d017931c | 1395 | hdr->nops++; |
dadf0c27 | 1396 | hdr->replen += decode_readlink_maxsz; |
1da177e4 LT |
1397 | } |
1398 | ||
cf8cdbe5 | 1399 | static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1400 | { |
8687b63a | 1401 | __be32 *p; |
1da177e4 | 1402 | |
13c65ce9 | 1403 | p = reserve_space(xdr, 8 + name->len); |
e75bc1c8 | 1404 | *p++ = cpu_to_be32(OP_REMOVE); |
811652bd | 1405 | xdr_encode_opaque(p, name->name, name->len); |
d017931c | 1406 | hdr->nops++; |
dadf0c27 | 1407 | hdr->replen += decode_remove_maxsz; |
1da177e4 LT |
1408 | } |
1409 | ||
cf8cdbe5 | 1410 | static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) |
1da177e4 | 1411 | { |
8687b63a | 1412 | __be32 *p; |
1da177e4 | 1413 | |
811652bd BH |
1414 | p = reserve_space(xdr, 4); |
1415 | *p = cpu_to_be32(OP_RENAME); | |
1416 | encode_string(xdr, oldname->len, oldname->name); | |
1417 | encode_string(xdr, newname->len, newname->name); | |
d017931c | 1418 | hdr->nops++; |
dadf0c27 | 1419 | hdr->replen += decode_rename_maxsz; |
1da177e4 LT |
1420 | } |
1421 | ||
cf8cdbe5 | 1422 | static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) |
1da177e4 | 1423 | { |
8687b63a | 1424 | __be32 *p; |
1da177e4 | 1425 | |
13c65ce9 | 1426 | p = reserve_space(xdr, 12); |
e75bc1c8 | 1427 | *p++ = cpu_to_be32(OP_RENEW); |
34558513 | 1428 | xdr_encode_hyper(p, client_stateid->cl_clientid); |
d017931c | 1429 | hdr->nops++; |
dadf0c27 | 1430 | hdr->replen += decode_renew_maxsz; |
1da177e4 LT |
1431 | } |
1432 | ||
cf8cdbe5 | 1433 | static void |
d017931c | 1434 | encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
56ae19f3 | 1435 | { |
8687b63a | 1436 | __be32 *p; |
56ae19f3 | 1437 | |
13c65ce9 | 1438 | p = reserve_space(xdr, 4); |
34558513 | 1439 | *p = cpu_to_be32(OP_RESTOREFH); |
d017931c | 1440 | hdr->nops++; |
dadf0c27 | 1441 | hdr->replen += decode_restorefh_maxsz; |
56ae19f3 TM |
1442 | } |
1443 | ||
23ec6965 | 1444 | static int |
d017931c | 1445 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) |
23ec6965 | 1446 | { |
8687b63a | 1447 | __be32 *p; |
23ec6965 | 1448 | |
13c65ce9 | 1449 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1450 | *p++ = cpu_to_be32(OP_SETATTR); |
34558513 | 1451 | xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); |
13c65ce9 | 1452 | p = reserve_space(xdr, 2*4); |
e75bc1c8 | 1453 | *p++ = cpu_to_be32(1); |
34558513 | 1454 | *p = cpu_to_be32(FATTR4_WORD0_ACL); |
23ec6965 BF |
1455 | if (arg->acl_len % 4) |
1456 | return -EINVAL; | |
13c65ce9 | 1457 | p = reserve_space(xdr, 4); |
34558513 | 1458 | *p = cpu_to_be32(arg->acl_len); |
23ec6965 | 1459 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); |
d017931c | 1460 | hdr->nops++; |
dadf0c27 | 1461 | hdr->replen += decode_setacl_maxsz; |
23ec6965 BF |
1462 | return 0; |
1463 | } | |
1464 | ||
cf8cdbe5 | 1465 | static void |
d017931c | 1466 | encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1467 | { |
8687b63a | 1468 | __be32 *p; |
1da177e4 | 1469 | |
13c65ce9 | 1470 | p = reserve_space(xdr, 4); |
34558513 | 1471 | *p = cpu_to_be32(OP_SAVEFH); |
d017931c | 1472 | hdr->nops++; |
dadf0c27 | 1473 | hdr->replen += decode_savefh_maxsz; |
1da177e4 LT |
1474 | } |
1475 | ||
cf8cdbe5 | 1476 | static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) |
1da177e4 | 1477 | { |
8687b63a | 1478 | __be32 *p; |
6c0195a4 | 1479 | |
13c65ce9 | 1480 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1481 | *p++ = cpu_to_be32(OP_SETATTR); |
34558513 | 1482 | xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); |
d017931c | 1483 | hdr->nops++; |
dadf0c27 | 1484 | hdr->replen += decode_setattr_maxsz; |
cf8cdbe5 | 1485 | encode_attrs(xdr, arg->iap, server); |
1da177e4 LT |
1486 | } |
1487 | ||
cf8cdbe5 | 1488 | static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) |
1da177e4 | 1489 | { |
8687b63a | 1490 | __be32 *p; |
1da177e4 | 1491 | |
13c65ce9 | 1492 | p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); |
e75bc1c8 | 1493 | *p++ = cpu_to_be32(OP_SETCLIENTID); |
34558513 | 1494 | xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1495 | |
1496 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); | |
13c65ce9 | 1497 | p = reserve_space(xdr, 4); |
34558513 | 1498 | *p = cpu_to_be32(setclientid->sc_prog); |
1da177e4 LT |
1499 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); |
1500 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); | |
13c65ce9 | 1501 | p = reserve_space(xdr, 4); |
34558513 | 1502 | *p = cpu_to_be32(setclientid->sc_cb_ident); |
d017931c | 1503 | hdr->nops++; |
dadf0c27 | 1504 | hdr->replen += decode_setclientid_maxsz; |
1da177e4 LT |
1505 | } |
1506 | ||
bb8b27e5 | 1507 | static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) |
1da177e4 | 1508 | { |
05d564fe | 1509 | __be32 *p; |
1da177e4 | 1510 | |
13c65ce9 | 1511 | p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); |
e75bc1c8 | 1512 | *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); |
bb8b27e5 TM |
1513 | p = xdr_encode_hyper(p, arg->clientid); |
1514 | xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE); | |
d017931c | 1515 | hdr->nops++; |
dadf0c27 | 1516 | hdr->replen += decode_setclientid_confirm_maxsz; |
1da177e4 LT |
1517 | } |
1518 | ||
cf8cdbe5 | 1519 | static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 1520 | { |
8687b63a | 1521 | __be32 *p; |
1da177e4 | 1522 | |
13c65ce9 | 1523 | p = reserve_space(xdr, 4); |
34558513 | 1524 | *p = cpu_to_be32(OP_WRITE); |
1da177e4 | 1525 | |
f11ac8db | 1526 | encode_stateid(xdr, args->context, args->lock_context); |
1da177e4 | 1527 | |
13c65ce9 | 1528 | p = reserve_space(xdr, 16); |
b95be5a9 | 1529 | p = xdr_encode_hyper(p, args->offset); |
e75bc1c8 | 1530 | *p++ = cpu_to_be32(args->stable); |
34558513 | 1531 | *p = cpu_to_be32(args->count); |
1da177e4 LT |
1532 | |
1533 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); | |
d017931c | 1534 | hdr->nops++; |
dadf0c27 | 1535 | hdr->replen += decode_write_maxsz; |
1da177e4 LT |
1536 | } |
1537 | ||
cf8cdbe5 | 1538 | static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) |
1da177e4 | 1539 | { |
8687b63a | 1540 | __be32 *p; |
1da177e4 | 1541 | |
13c65ce9 | 1542 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
1da177e4 | 1543 | |
e75bc1c8 | 1544 | *p++ = cpu_to_be32(OP_DELEGRETURN); |
34558513 | 1545 | xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); |
d017931c | 1546 | hdr->nops++; |
dadf0c27 | 1547 | hdr->replen += decode_delegreturn_maxsz; |
1da177e4 | 1548 | } |
9b7b9fcc | 1549 | |
99fe60d0 | 1550 | #if defined(CONFIG_NFS_V4_1) |
9b7b9fcc | 1551 | /* NFSv4.1 operations */ |
99fe60d0 BH |
1552 | static void encode_exchange_id(struct xdr_stream *xdr, |
1553 | struct nfs41_exchange_id_args *args, | |
1554 | struct compound_hdr *hdr) | |
1555 | { | |
1556 | __be32 *p; | |
1557 | ||
13c65ce9 | 1558 | p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); |
e75bc1c8 | 1559 | *p++ = cpu_to_be32(OP_EXCHANGE_ID); |
34558513 | 1560 | xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); |
99fe60d0 BH |
1561 | |
1562 | encode_string(xdr, args->id_len, args->id); | |
1563 | ||
13c65ce9 | 1564 | p = reserve_space(xdr, 12); |
e75bc1c8 BH |
1565 | *p++ = cpu_to_be32(args->flags); |
1566 | *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ | |
34558513 | 1567 | *p = cpu_to_be32(0); /* zero length implementation id array */ |
99fe60d0 BH |
1568 | hdr->nops++; |
1569 | hdr->replen += decode_exchange_id_maxsz; | |
1570 | } | |
fc931582 AA |
1571 | |
1572 | static void encode_create_session(struct xdr_stream *xdr, | |
1573 | struct nfs41_create_session_args *args, | |
1574 | struct compound_hdr *hdr) | |
1575 | { | |
1576 | __be32 *p; | |
1577 | char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; | |
1578 | uint32_t len; | |
1579 | struct nfs_client *clp = args->client; | |
8e0d46e1 MS |
1580 | u32 max_resp_sz_cached; |
1581 | ||
1582 | /* | |
1583 | * Assumes OPEN is the biggest non-idempotent compound. | |
1584 | * 2 is the verifier. | |
1585 | */ | |
1586 | max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + | |
1587 | RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; | |
fc931582 | 1588 | |
42edd698 BH |
1589 | len = scnprintf(machine_name, sizeof(machine_name), "%s", |
1590 | clp->cl_ipaddr); | |
fc931582 | 1591 | |
13c65ce9 | 1592 | p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); |
42edd698 | 1593 | *p++ = cpu_to_be32(OP_CREATE_SESSION); |
b95be5a9 | 1594 | p = xdr_encode_hyper(p, clp->cl_ex_clid); |
e75bc1c8 BH |
1595 | *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ |
1596 | *p++ = cpu_to_be32(args->flags); /*flags */ | |
fc931582 | 1597 | |
fc931582 | 1598 | /* Fore Channel */ |
e75bc1c8 BH |
1599 | *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ |
1600 | *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ | |
1601 | *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ | |
8e0d46e1 | 1602 | *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ |
e75bc1c8 BH |
1603 | *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ |
1604 | *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ | |
1605 | *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ | |
fc931582 AA |
1606 | |
1607 | /* Back Channel */ | |
e75bc1c8 BH |
1608 | *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ |
1609 | *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ | |
1610 | *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ | |
1611 | *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ | |
1612 | *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ | |
1613 | *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ | |
1614 | *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ | |
fc931582 | 1615 | |
e75bc1c8 | 1616 | *p++ = cpu_to_be32(args->cb_program); /* cb_program */ |
e75bc1c8 | 1617 | *p++ = cpu_to_be32(1); |
e75bc1c8 | 1618 | *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ |
fc931582 AA |
1619 | |
1620 | /* authsys_parms rfc1831 */ | |
e75bc1c8 | 1621 | *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ |
811652bd | 1622 | p = xdr_encode_opaque(p, machine_name, len); |
e75bc1c8 BH |
1623 | *p++ = cpu_to_be32(0); /* UID */ |
1624 | *p++ = cpu_to_be32(0); /* GID */ | |
34558513 | 1625 | *p = cpu_to_be32(0); /* No more gids */ |
fc931582 AA |
1626 | hdr->nops++; |
1627 | hdr->replen += decode_create_session_maxsz; | |
1628 | } | |
0f3e66c6 AA |
1629 | |
1630 | static void encode_destroy_session(struct xdr_stream *xdr, | |
1631 | struct nfs4_session *session, | |
1632 | struct compound_hdr *hdr) | |
1633 | { | |
1634 | __be32 *p; | |
13c65ce9 | 1635 | p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); |
e75bc1c8 | 1636 | *p++ = cpu_to_be32(OP_DESTROY_SESSION); |
34558513 | 1637 | xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); |
0f3e66c6 AA |
1638 | hdr->nops++; |
1639 | hdr->replen += decode_destroy_session_maxsz; | |
1640 | } | |
18019753 RL |
1641 | |
1642 | static void encode_reclaim_complete(struct xdr_stream *xdr, | |
1643 | struct nfs41_reclaim_complete_args *args, | |
1644 | struct compound_hdr *hdr) | |
1645 | { | |
1646 | __be32 *p; | |
1647 | ||
1648 | p = reserve_space(xdr, 8); | |
1649 | *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); | |
1650 | *p++ = cpu_to_be32(args->one_fs); | |
1651 | hdr->nops++; | |
1652 | hdr->replen += decode_reclaim_complete_maxsz; | |
1653 | } | |
99fe60d0 BH |
1654 | #endif /* CONFIG_NFS_V4_1 */ |
1655 | ||
9b7b9fcc AA |
1656 | static void encode_sequence(struct xdr_stream *xdr, |
1657 | const struct nfs4_sequence_args *args, | |
1658 | struct compound_hdr *hdr) | |
1659 | { | |
1660 | #if defined(CONFIG_NFS_V4_1) | |
1661 | struct nfs4_session *session = args->sa_session; | |
fc01cea9 AA |
1662 | struct nfs4_slot_table *tp; |
1663 | struct nfs4_slot *slot; | |
1664 | __be32 *p; | |
9b7b9fcc AA |
1665 | |
1666 | if (!session) | |
1667 | return; | |
1668 | ||
fc01cea9 AA |
1669 | tp = &session->fc_slot_table; |
1670 | ||
1671 | WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); | |
1672 | slot = tp->slots + args->sa_slotid; | |
1673 | ||
13c65ce9 | 1674 | p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); |
e75bc1c8 | 1675 | *p++ = cpu_to_be32(OP_SEQUENCE); |
fc01cea9 AA |
1676 | |
1677 | /* | |
1678 | * Sessionid + seqid + slotid + max slotid + cache_this | |
1679 | */ | |
1680 | dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " | |
1681 | "max_slotid=%d cache_this=%d\n", | |
1682 | __func__, | |
1683 | ((u32 *)session->sess_id.data)[0], | |
1684 | ((u32 *)session->sess_id.data)[1], | |
1685 | ((u32 *)session->sess_id.data)[2], | |
1686 | ((u32 *)session->sess_id.data)[3], | |
1687 | slot->seq_nr, args->sa_slotid, | |
1688 | tp->highest_used_slotid, args->sa_cache_this); | |
93f0cf25 | 1689 | p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); |
e75bc1c8 BH |
1690 | *p++ = cpu_to_be32(slot->seq_nr); |
1691 | *p++ = cpu_to_be32(args->sa_slotid); | |
1692 | *p++ = cpu_to_be32(tp->highest_used_slotid); | |
34558513 | 1693 | *p = cpu_to_be32(args->sa_cache_this); |
9b7b9fcc AA |
1694 | hdr->nops++; |
1695 | hdr->replen += decode_sequence_maxsz; | |
1696 | #endif /* CONFIG_NFS_V4_1 */ | |
1697 | } | |
1698 | ||
1da177e4 LT |
1699 | /* |
1700 | * END OF "GENERIC" ENCODE ROUTINES. | |
1701 | */ | |
1702 | ||
66cc0429 BH |
1703 | static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) |
1704 | { | |
1705 | #if defined(CONFIG_NFS_V4_1) | |
1706 | if (args->sa_session) | |
a4432345 | 1707 | return args->sa_session->clp->cl_mvops->minor_version; |
66cc0429 BH |
1708 | #endif /* CONFIG_NFS_V4_1 */ |
1709 | return 0; | |
1710 | } | |
1711 | ||
1da177e4 LT |
1712 | /* |
1713 | * Encode an ACCESS request | |
1714 | */ | |
8687b63a | 1715 | static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) |
1da177e4 LT |
1716 | { |
1717 | struct xdr_stream xdr; | |
1718 | struct compound_hdr hdr = { | |
66cc0429 | 1719 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1720 | }; |
1da177e4 LT |
1721 | |
1722 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1723 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1724 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1725 | encode_putfh(&xdr, args->fh, &hdr); |
1726 | encode_access(&xdr, args->access, &hdr); | |
1727 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1728 | encode_nops(&hdr); |
cf8cdbe5 | 1729 | return 0; |
1da177e4 LT |
1730 | } |
1731 | ||
1732 | /* | |
1733 | * Encode LOOKUP request | |
1734 | */ | |
8687b63a | 1735 | static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) |
1da177e4 LT |
1736 | { |
1737 | struct xdr_stream xdr; | |
1738 | struct compound_hdr hdr = { | |
66cc0429 | 1739 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1740 | }; |
1da177e4 LT |
1741 | |
1742 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1743 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1744 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1745 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1746 | encode_lookup(&xdr, args->name, &hdr); | |
1747 | encode_getfh(&xdr, &hdr); | |
1748 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1749 | encode_nops(&hdr); |
cf8cdbe5 | 1750 | return 0; |
1da177e4 LT |
1751 | } |
1752 | ||
1753 | /* | |
1754 | * Encode LOOKUP_ROOT request | |
1755 | */ | |
8687b63a | 1756 | static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) |
1da177e4 LT |
1757 | { |
1758 | struct xdr_stream xdr; | |
1759 | struct compound_hdr hdr = { | |
66cc0429 | 1760 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1761 | }; |
1da177e4 LT |
1762 | |
1763 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1764 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1765 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1766 | encode_putrootfh(&xdr, &hdr); |
1767 | encode_getfh(&xdr, &hdr); | |
1768 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1769 | encode_nops(&hdr); |
cf8cdbe5 | 1770 | return 0; |
1da177e4 LT |
1771 | } |
1772 | ||
1773 | /* | |
1774 | * Encode REMOVE request | |
1775 | */ | |
4fdc17b2 | 1776 | static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) |
1da177e4 LT |
1777 | { |
1778 | struct xdr_stream xdr; | |
1779 | struct compound_hdr hdr = { | |
66cc0429 | 1780 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1781 | }; |
1da177e4 LT |
1782 | |
1783 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1784 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1785 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1786 | encode_putfh(&xdr, args->fh, &hdr); |
1787 | encode_remove(&xdr, &args->name, &hdr); | |
1788 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1789 | encode_nops(&hdr); |
cf8cdbe5 | 1790 | return 0; |
1da177e4 LT |
1791 | } |
1792 | ||
1793 | /* | |
1794 | * Encode RENAME request | |
1795 | */ | |
8687b63a | 1796 | static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) |
1da177e4 LT |
1797 | { |
1798 | struct xdr_stream xdr; | |
1799 | struct compound_hdr hdr = { | |
66cc0429 | 1800 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1801 | }; |
1da177e4 LT |
1802 | |
1803 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1804 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1805 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1806 | encode_putfh(&xdr, args->old_dir, &hdr); |
1807 | encode_savefh(&xdr, &hdr); | |
1808 | encode_putfh(&xdr, args->new_dir, &hdr); | |
1809 | encode_rename(&xdr, args->old_name, args->new_name, &hdr); | |
1810 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1811 | encode_restorefh(&xdr, &hdr); | |
1812 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1813 | encode_nops(&hdr); |
cf8cdbe5 | 1814 | return 0; |
1da177e4 LT |
1815 | } |
1816 | ||
1817 | /* | |
1818 | * Encode LINK request | |
1819 | */ | |
8687b63a | 1820 | static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) |
1da177e4 LT |
1821 | { |
1822 | struct xdr_stream xdr; | |
1823 | struct compound_hdr hdr = { | |
66cc0429 | 1824 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1825 | }; |
1da177e4 LT |
1826 | |
1827 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1828 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1829 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1830 | encode_putfh(&xdr, args->fh, &hdr); |
1831 | encode_savefh(&xdr, &hdr); | |
1832 | encode_putfh(&xdr, args->dir_fh, &hdr); | |
1833 | encode_link(&xdr, args->name, &hdr); | |
1834 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1835 | encode_restorefh(&xdr, &hdr); | |
1836 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1837 | encode_nops(&hdr); |
cf8cdbe5 | 1838 | return 0; |
1da177e4 LT |
1839 | } |
1840 | ||
1841 | /* | |
1842 | * Encode CREATE request | |
1843 | */ | |
8687b63a | 1844 | static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1845 | { |
1846 | struct xdr_stream xdr; | |
1847 | struct compound_hdr hdr = { | |
66cc0429 | 1848 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1849 | }; |
1da177e4 LT |
1850 | |
1851 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1852 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1853 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1854 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1855 | encode_savefh(&xdr, &hdr); | |
1856 | encode_create(&xdr, args, &hdr); | |
1857 | encode_getfh(&xdr, &hdr); | |
1858 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1859 | encode_restorefh(&xdr, &hdr); | |
1860 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1861 | encode_nops(&hdr); |
cf8cdbe5 | 1862 | return 0; |
1da177e4 LT |
1863 | } |
1864 | ||
1865 | /* | |
1866 | * Encode SYMLINK request | |
1867 | */ | |
8687b63a | 1868 | static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1869 | { |
1870 | return nfs4_xdr_enc_create(req, p, args); | |
1871 | } | |
1872 | ||
1873 | /* | |
1874 | * Encode GETATTR request | |
1875 | */ | |
8687b63a | 1876 | static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) |
1da177e4 LT |
1877 | { |
1878 | struct xdr_stream xdr; | |
1879 | struct compound_hdr hdr = { | |
66cc0429 | 1880 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1881 | }; |
1da177e4 LT |
1882 | |
1883 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1884 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1885 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1886 | encode_putfh(&xdr, args->fh, &hdr); |
1887 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1888 | encode_nops(&hdr); |
cf8cdbe5 | 1889 | return 0; |
1da177e4 LT |
1890 | } |
1891 | ||
1892 | /* | |
1893 | * Encode a CLOSE request | |
1894 | */ | |
8687b63a | 1895 | static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 | 1896 | { |
05d564fe AA |
1897 | struct xdr_stream xdr; |
1898 | struct compound_hdr hdr = { | |
66cc0429 | 1899 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 1900 | }; |
05d564fe AA |
1901 | |
1902 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1903 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1904 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1905 | encode_putfh(&xdr, args->fh, &hdr); |
1906 | encode_close(&xdr, args, &hdr); | |
1907 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1908 | encode_nops(&hdr); |
cf8cdbe5 | 1909 | return 0; |
1da177e4 LT |
1910 | } |
1911 | ||
1912 | /* | |
1913 | * Encode an OPEN request | |
1914 | */ | |
8687b63a | 1915 | static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1916 | { |
1917 | struct xdr_stream xdr; | |
1918 | struct compound_hdr hdr = { | |
66cc0429 | 1919 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1920 | }; |
1da177e4 LT |
1921 | |
1922 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1923 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1924 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1925 | encode_putfh(&xdr, args->fh, &hdr); |
1926 | encode_savefh(&xdr, &hdr); | |
1927 | encode_open(&xdr, args, &hdr); | |
1928 | encode_getfh(&xdr, &hdr); | |
1929 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1930 | encode_restorefh(&xdr, &hdr); | |
1931 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1932 | encode_nops(&hdr); |
cf8cdbe5 | 1933 | return 0; |
1da177e4 LT |
1934 | } |
1935 | ||
1936 | /* | |
1937 | * Encode an OPEN_CONFIRM request | |
1938 | */ | |
8687b63a | 1939 | static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) |
1da177e4 LT |
1940 | { |
1941 | struct xdr_stream xdr; | |
1942 | struct compound_hdr hdr = { | |
d017931c | 1943 | .nops = 0, |
1da177e4 | 1944 | }; |
1da177e4 LT |
1945 | |
1946 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1947 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1948 | encode_putfh(&xdr, args->fh, &hdr); |
1949 | encode_open_confirm(&xdr, args, &hdr); | |
d017931c | 1950 | encode_nops(&hdr); |
cf8cdbe5 | 1951 | return 0; |
1da177e4 LT |
1952 | } |
1953 | ||
1954 | /* | |
1955 | * Encode an OPEN request with no attributes. | |
1956 | */ | |
8687b63a | 1957 | static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1958 | { |
1959 | struct xdr_stream xdr; | |
1960 | struct compound_hdr hdr = { | |
66cc0429 | 1961 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1962 | }; |
1da177e4 LT |
1963 | |
1964 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1965 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1966 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1967 | encode_putfh(&xdr, args->fh, &hdr); |
1968 | encode_open(&xdr, args, &hdr); | |
1969 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1970 | encode_nops(&hdr); |
cf8cdbe5 | 1971 | return 0; |
1da177e4 LT |
1972 | } |
1973 | ||
1974 | /* | |
1975 | * Encode an OPEN_DOWNGRADE request | |
1976 | */ | |
8687b63a | 1977 | static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 LT |
1978 | { |
1979 | struct xdr_stream xdr; | |
1980 | struct compound_hdr hdr = { | |
66cc0429 | 1981 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1982 | }; |
1da177e4 LT |
1983 | |
1984 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1985 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1986 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1987 | encode_putfh(&xdr, args->fh, &hdr); |
1988 | encode_open_downgrade(&xdr, args, &hdr); | |
1989 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1990 | encode_nops(&hdr); |
cf8cdbe5 | 1991 | return 0; |
1da177e4 LT |
1992 | } |
1993 | ||
1994 | /* | |
1995 | * Encode a LOCK request | |
1996 | */ | |
8687b63a | 1997 | static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) |
1da177e4 LT |
1998 | { |
1999 | struct xdr_stream xdr; | |
2000 | struct compound_hdr hdr = { | |
66cc0429 | 2001 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2002 | }; |
1da177e4 LT |
2003 | |
2004 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2005 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2006 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2007 | encode_putfh(&xdr, args->fh, &hdr); |
2008 | encode_lock(&xdr, args, &hdr); | |
d017931c | 2009 | encode_nops(&hdr); |
cf8cdbe5 | 2010 | return 0; |
1da177e4 LT |
2011 | } |
2012 | ||
2013 | /* | |
2014 | * Encode a LOCKT request | |
2015 | */ | |
8687b63a | 2016 | static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) |
1da177e4 LT |
2017 | { |
2018 | struct xdr_stream xdr; | |
2019 | struct compound_hdr hdr = { | |
66cc0429 | 2020 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2021 | }; |
1da177e4 LT |
2022 | |
2023 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2024 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2025 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2026 | encode_putfh(&xdr, args->fh, &hdr); |
2027 | encode_lockt(&xdr, args, &hdr); | |
d017931c | 2028 | encode_nops(&hdr); |
cf8cdbe5 | 2029 | return 0; |
1da177e4 LT |
2030 | } |
2031 | ||
2032 | /* | |
2033 | * Encode a LOCKU request | |
2034 | */ | |
8687b63a | 2035 | static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) |
1da177e4 LT |
2036 | { |
2037 | struct xdr_stream xdr; | |
2038 | struct compound_hdr hdr = { | |
66cc0429 | 2039 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2040 | }; |
1da177e4 LT |
2041 | |
2042 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2043 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2044 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2045 | encode_putfh(&xdr, args->fh, &hdr); |
2046 | encode_locku(&xdr, args, &hdr); | |
d017931c | 2047 | encode_nops(&hdr); |
cf8cdbe5 | 2048 | return 0; |
1da177e4 LT |
2049 | } |
2050 | ||
2051 | /* | |
2052 | * Encode a READLINK request | |
2053 | */ | |
8687b63a | 2054 | static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) |
1da177e4 LT |
2055 | { |
2056 | struct xdr_stream xdr; | |
2057 | struct compound_hdr hdr = { | |
66cc0429 | 2058 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2059 | }; |
1da177e4 LT |
2060 | |
2061 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2062 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2063 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2064 | encode_putfh(&xdr, args->fh, &hdr); |
2065 | encode_readlink(&xdr, args, req, &hdr); | |
e3a535e1 | 2066 | |
28f56694 | 2067 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
e3a535e1 | 2068 | args->pgbase, args->pglen); |
d017931c | 2069 | encode_nops(&hdr); |
cf8cdbe5 | 2070 | return 0; |
1da177e4 LT |
2071 | } |
2072 | ||
2073 | /* | |
2074 | * Encode a READDIR request | |
2075 | */ | |
8687b63a | 2076 | static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) |
1da177e4 LT |
2077 | { |
2078 | struct xdr_stream xdr; | |
2079 | struct compound_hdr hdr = { | |
66cc0429 | 2080 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2081 | }; |
1da177e4 LT |
2082 | |
2083 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2084 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2085 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2086 | encode_putfh(&xdr, args->fh, &hdr); |
2087 | encode_readdir(&xdr, args, req, &hdr); | |
d6ac02df | 2088 | |
28f56694 | 2089 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
d6ac02df TM |
2090 | args->pgbase, args->count); |
2091 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", | |
28f56694 | 2092 | __func__, hdr.replen << 2, args->pages, |
d6ac02df | 2093 | args->pgbase, args->count); |
d017931c | 2094 | encode_nops(&hdr); |
cf8cdbe5 | 2095 | return 0; |
1da177e4 LT |
2096 | } |
2097 | ||
2098 | /* | |
2099 | * Encode a READ request | |
2100 | */ | |
8687b63a | 2101 | static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) |
1da177e4 | 2102 | { |
1da177e4 LT |
2103 | struct xdr_stream xdr; |
2104 | struct compound_hdr hdr = { | |
66cc0429 | 2105 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2106 | }; |
1da177e4 LT |
2107 | |
2108 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2109 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2110 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2111 | encode_putfh(&xdr, args->fh, &hdr); |
2112 | encode_read(&xdr, args, &hdr); | |
1da177e4 | 2113 | |
28f56694 | 2114 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, |
1da177e4 | 2115 | args->pages, args->pgbase, args->count); |
4f22ccc3 | 2116 | req->rq_rcv_buf.flags |= XDRBUF_READ; |
d017931c | 2117 | encode_nops(&hdr); |
cf8cdbe5 | 2118 | return 0; |
1da177e4 LT |
2119 | } |
2120 | ||
2121 | /* | |
2122 | * Encode an SETATTR request | |
2123 | */ | |
8687b63a | 2124 | static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) |
1da177e4 | 2125 | { |
05d564fe AA |
2126 | struct xdr_stream xdr; |
2127 | struct compound_hdr hdr = { | |
66cc0429 | 2128 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 2129 | }; |
05d564fe AA |
2130 | |
2131 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2132 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2133 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2134 | encode_putfh(&xdr, args->fh, &hdr); |
2135 | encode_setattr(&xdr, args, args->server, &hdr); | |
2136 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2137 | encode_nops(&hdr); |
cf8cdbe5 | 2138 | return 0; |
1da177e4 LT |
2139 | } |
2140 | ||
029d105e BF |
2141 | /* |
2142 | * Encode a GETACL request | |
2143 | */ | |
2144 | static int | |
8687b63a | 2145 | nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, |
029d105e BF |
2146 | struct nfs_getaclargs *args) |
2147 | { | |
2148 | struct xdr_stream xdr; | |
029d105e | 2149 | struct compound_hdr hdr = { |
66cc0429 | 2150 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
029d105e | 2151 | }; |
28f56694 | 2152 | uint32_t replen; |
029d105e BF |
2153 | |
2154 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2155 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2156 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 | 2157 | encode_putfh(&xdr, args->fh, &hdr); |
d327cf74 | 2158 | replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1; |
cf8cdbe5 AA |
2159 | encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); |
2160 | ||
28f56694 | 2161 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, |
029d105e | 2162 | args->acl_pages, args->acl_pgbase, args->acl_len); |
d017931c | 2163 | encode_nops(&hdr); |
cf8cdbe5 | 2164 | return 0; |
029d105e BF |
2165 | } |
2166 | ||
1da177e4 LT |
2167 | /* |
2168 | * Encode a WRITE request | |
2169 | */ | |
8687b63a | 2170 | static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
2171 | { |
2172 | struct xdr_stream xdr; | |
2173 | struct compound_hdr hdr = { | |
66cc0429 | 2174 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2175 | }; |
1da177e4 LT |
2176 | |
2177 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2178 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2179 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2180 | encode_putfh(&xdr, args->fh, &hdr); |
2181 | encode_write(&xdr, args, &hdr); | |
4f22ccc3 | 2182 | req->rq_snd_buf.flags |= XDRBUF_WRITE; |
cf8cdbe5 | 2183 | encode_getfattr(&xdr, args->bitmask, &hdr); |
d017931c | 2184 | encode_nops(&hdr); |
cf8cdbe5 | 2185 | return 0; |
1da177e4 LT |
2186 | } |
2187 | ||
2188 | /* | |
2189 | * a COMMIT request | |
2190 | */ | |
8687b63a | 2191 | static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
2192 | { |
2193 | struct xdr_stream xdr; | |
2194 | struct compound_hdr hdr = { | |
66cc0429 | 2195 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2196 | }; |
1da177e4 LT |
2197 | |
2198 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2199 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2200 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2201 | encode_putfh(&xdr, args->fh, &hdr); |
2202 | encode_commit(&xdr, args, &hdr); | |
2203 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2204 | encode_nops(&hdr); |
cf8cdbe5 | 2205 | return 0; |
1da177e4 LT |
2206 | } |
2207 | ||
2208 | /* | |
2209 | * FSINFO request | |
2210 | */ | |
8687b63a | 2211 | static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) |
1da177e4 LT |
2212 | { |
2213 | struct xdr_stream xdr; | |
2214 | struct compound_hdr hdr = { | |
66cc0429 | 2215 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2216 | }; |
1da177e4 LT |
2217 | |
2218 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2219 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2220 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2221 | encode_putfh(&xdr, args->fh, &hdr); |
2222 | encode_fsinfo(&xdr, args->bitmask, &hdr); | |
d017931c | 2223 | encode_nops(&hdr); |
cf8cdbe5 | 2224 | return 0; |
1da177e4 LT |
2225 | } |
2226 | ||
2227 | /* | |
2228 | * a PATHCONF request | |
2229 | */ | |
8687b63a | 2230 | static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) |
1da177e4 | 2231 | { |
1da177e4 LT |
2232 | struct xdr_stream xdr; |
2233 | struct compound_hdr hdr = { | |
66cc0429 | 2234 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2235 | }; |
1da177e4 LT |
2236 | |
2237 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2238 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2239 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2240 | encode_putfh(&xdr, args->fh, &hdr); |
2241 | encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], | |
2242 | &hdr); | |
d017931c | 2243 | encode_nops(&hdr); |
cf8cdbe5 | 2244 | return 0; |
1da177e4 LT |
2245 | } |
2246 | ||
2247 | /* | |
2248 | * a STATFS request | |
2249 | */ | |
8687b63a | 2250 | static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) |
1da177e4 | 2251 | { |
1da177e4 LT |
2252 | struct xdr_stream xdr; |
2253 | struct compound_hdr hdr = { | |
66cc0429 | 2254 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2255 | }; |
1da177e4 LT |
2256 | |
2257 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2258 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2259 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2260 | encode_putfh(&xdr, args->fh, &hdr); |
2261 | encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], | |
2262 | args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); | |
d017931c | 2263 | encode_nops(&hdr); |
cf8cdbe5 | 2264 | return 0; |
1da177e4 LT |
2265 | } |
2266 | ||
2267 | /* | |
2268 | * GETATTR_BITMAP request | |
2269 | */ | |
43652ad5 BH |
2270 | static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, |
2271 | struct nfs4_server_caps_arg *args) | |
1da177e4 LT |
2272 | { |
2273 | struct xdr_stream xdr; | |
2274 | struct compound_hdr hdr = { | |
66cc0429 | 2275 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2276 | }; |
1da177e4 LT |
2277 | |
2278 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2279 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2280 | encode_sequence(&xdr, &args->seq_args, &hdr); |
43652ad5 | 2281 | encode_putfh(&xdr, args->fhandle, &hdr); |
cf8cdbe5 AA |
2282 | encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| |
2283 | FATTR4_WORD0_LINK_SUPPORT| | |
2284 | FATTR4_WORD0_SYMLINK_SUPPORT| | |
2285 | FATTR4_WORD0_ACLSUPPORT, &hdr); | |
d017931c | 2286 | encode_nops(&hdr); |
cf8cdbe5 | 2287 | return 0; |
1da177e4 LT |
2288 | } |
2289 | ||
2290 | /* | |
2291 | * a RENEW request | |
2292 | */ | |
8687b63a | 2293 | static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2294 | { |
2295 | struct xdr_stream xdr; | |
2296 | struct compound_hdr hdr = { | |
d017931c | 2297 | .nops = 0, |
1da177e4 LT |
2298 | }; |
2299 | ||
2300 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2301 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 2302 | encode_renew(&xdr, clp, &hdr); |
d017931c | 2303 | encode_nops(&hdr); |
cf8cdbe5 | 2304 | return 0; |
1da177e4 LT |
2305 | } |
2306 | ||
2307 | /* | |
2308 | * a SETCLIENTID request | |
2309 | */ | |
8687b63a | 2310 | static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) |
1da177e4 LT |
2311 | { |
2312 | struct xdr_stream xdr; | |
2313 | struct compound_hdr hdr = { | |
d017931c | 2314 | .nops = 0, |
1da177e4 LT |
2315 | }; |
2316 | ||
2317 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2318 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 2319 | encode_setclientid(&xdr, sc, &hdr); |
d017931c | 2320 | encode_nops(&hdr); |
cf8cdbe5 | 2321 | return 0; |
1da177e4 LT |
2322 | } |
2323 | ||
2324 | /* | |
2325 | * a SETCLIENTID_CONFIRM request | |
2326 | */ | |
bb8b27e5 | 2327 | static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid_res *arg) |
1da177e4 LT |
2328 | { |
2329 | struct xdr_stream xdr; | |
2330 | struct compound_hdr hdr = { | |
d017931c | 2331 | .nops = 0, |
1da177e4 LT |
2332 | }; |
2333 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
1da177e4 LT |
2334 | |
2335 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2336 | encode_compound_hdr(&xdr, req, &hdr); |
bb8b27e5 | 2337 | encode_setclientid_confirm(&xdr, arg, &hdr); |
cf8cdbe5 AA |
2338 | encode_putrootfh(&xdr, &hdr); |
2339 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
d017931c | 2340 | encode_nops(&hdr); |
cf8cdbe5 | 2341 | return 0; |
1da177e4 LT |
2342 | } |
2343 | ||
2344 | /* | |
2345 | * DELEGRETURN request | |
2346 | */ | |
8687b63a | 2347 | static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) |
1da177e4 LT |
2348 | { |
2349 | struct xdr_stream xdr; | |
2350 | struct compound_hdr hdr = { | |
66cc0429 | 2351 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2352 | }; |
1da177e4 LT |
2353 | |
2354 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2355 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2356 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2357 | encode_putfh(&xdr, args->fhandle, &hdr); |
2358 | encode_delegreturn(&xdr, args->stateid, &hdr); | |
2359 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2360 | encode_nops(&hdr); |
cf8cdbe5 | 2361 | return 0; |
1da177e4 LT |
2362 | } |
2363 | ||
683b57b4 TM |
2364 | /* |
2365 | * Encode FS_LOCATIONS request | |
2366 | */ | |
8687b63a | 2367 | static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) |
683b57b4 TM |
2368 | { |
2369 | struct xdr_stream xdr; | |
2370 | struct compound_hdr hdr = { | |
66cc0429 | 2371 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
683b57b4 | 2372 | }; |
28f56694 | 2373 | uint32_t replen; |
683b57b4 TM |
2374 | |
2375 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2376 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2377 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2378 | encode_putfh(&xdr, args->dir_fh, &hdr); |
2379 | encode_lookup(&xdr, args->name, &hdr); | |
28f56694 | 2380 | replen = hdr.replen; /* get the attribute into args->page */ |
cf8cdbe5 AA |
2381 | encode_fs_locations(&xdr, args->bitmask, &hdr); |
2382 | ||
28f56694 | 2383 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, |
683b57b4 | 2384 | 0, PAGE_SIZE); |
d017931c | 2385 | encode_nops(&hdr); |
cf8cdbe5 | 2386 | return 0; |
683b57b4 TM |
2387 | } |
2388 | ||
99fe60d0 BH |
2389 | #if defined(CONFIG_NFS_V4_1) |
2390 | /* | |
2391 | * EXCHANGE_ID request | |
2392 | */ | |
2393 | static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, | |
2394 | struct nfs41_exchange_id_args *args) | |
2395 | { | |
2396 | struct xdr_stream xdr; | |
2397 | struct compound_hdr hdr = { | |
a4432345 | 2398 | .minorversion = args->client->cl_mvops->minor_version, |
99fe60d0 BH |
2399 | }; |
2400 | ||
2401 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2402 | encode_compound_hdr(&xdr, req, &hdr); | |
2403 | encode_exchange_id(&xdr, args, &hdr); | |
2404 | encode_nops(&hdr); | |
2405 | return 0; | |
2406 | } | |
2050f0cc | 2407 | |
fc931582 AA |
2408 | /* |
2409 | * a CREATE_SESSION request | |
2410 | */ | |
2411 | static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, | |
2412 | struct nfs41_create_session_args *args) | |
2413 | { | |
2414 | struct xdr_stream xdr; | |
2415 | struct compound_hdr hdr = { | |
a4432345 | 2416 | .minorversion = args->client->cl_mvops->minor_version, |
fc931582 AA |
2417 | }; |
2418 | ||
2419 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2420 | encode_compound_hdr(&xdr, req, &hdr); | |
2421 | encode_create_session(&xdr, args, &hdr); | |
2422 | encode_nops(&hdr); | |
2423 | return 0; | |
2424 | } | |
2425 | ||
0f3e66c6 AA |
2426 | /* |
2427 | * a DESTROY_SESSION request | |
2428 | */ | |
2429 | static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, | |
2430 | struct nfs4_session *session) | |
2431 | { | |
2432 | struct xdr_stream xdr; | |
2433 | struct compound_hdr hdr = { | |
a4432345 | 2434 | .minorversion = session->clp->cl_mvops->minor_version, |
0f3e66c6 AA |
2435 | }; |
2436 | ||
2437 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2438 | encode_compound_hdr(&xdr, req, &hdr); | |
2439 | encode_destroy_session(&xdr, session, &hdr); | |
2440 | encode_nops(&hdr); | |
2441 | return 0; | |
2442 | } | |
2443 | ||
fc01cea9 AA |
2444 | /* |
2445 | * a SEQUENCE request | |
2446 | */ | |
2447 | static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, | |
2448 | struct nfs4_sequence_args *args) | |
2449 | { | |
2450 | struct xdr_stream xdr; | |
2451 | struct compound_hdr hdr = { | |
2452 | .minorversion = nfs4_xdr_minorversion(args), | |
2453 | }; | |
2454 | ||
2455 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2456 | encode_compound_hdr(&xdr, req, &hdr); | |
2457 | encode_sequence(&xdr, args, &hdr); | |
2458 | encode_nops(&hdr); | |
2459 | return 0; | |
2460 | } | |
2461 | ||
2050f0cc AA |
2462 | /* |
2463 | * a GET_LEASE_TIME request | |
2464 | */ | |
2465 | static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, | |
2466 | struct nfs4_get_lease_time_args *args) | |
2467 | { | |
2468 | struct xdr_stream xdr; | |
2469 | struct compound_hdr hdr = { | |
2470 | .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), | |
2471 | }; | |
2472 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
2473 | ||
2474 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2475 | encode_compound_hdr(&xdr, req, &hdr); | |
2476 | encode_sequence(&xdr, &args->la_seq_args, &hdr); | |
2477 | encode_putrootfh(&xdr, &hdr); | |
2478 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
2479 | encode_nops(&hdr); | |
2480 | return 0; | |
2481 | } | |
18019753 RL |
2482 | |
2483 | /* | |
2484 | * a RECLAIM_COMPLETE request | |
2485 | */ | |
2486 | static int nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, uint32_t *p, | |
2487 | struct nfs41_reclaim_complete_args *args) | |
2488 | { | |
2489 | struct xdr_stream xdr; | |
2490 | struct compound_hdr hdr = { | |
2491 | .minorversion = nfs4_xdr_minorversion(&args->seq_args) | |
2492 | }; | |
2493 | ||
2494 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2495 | encode_compound_hdr(&xdr, req, &hdr); | |
2496 | encode_sequence(&xdr, &args->seq_args, &hdr); | |
2497 | encode_reclaim_complete(&xdr, args, &hdr); | |
2498 | encode_nops(&hdr); | |
2499 | return 0; | |
2500 | } | |
2501 | ||
99fe60d0 BH |
2502 | #endif /* CONFIG_NFS_V4_1 */ |
2503 | ||
686841b3 BH |
2504 | static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) |
2505 | { | |
2506 | dprintk("nfs: %s: prematurely hit end of receive buffer. " | |
2507 | "Remaining buffer length is %tu words.\n", | |
2508 | func, xdr->end - xdr->p); | |
2509 | } | |
1da177e4 | 2510 | |
683b57b4 | 2511 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
1da177e4 | 2512 | { |
8687b63a | 2513 | __be32 *p; |
1da177e4 | 2514 | |
c0eae66e BH |
2515 | p = xdr_inline_decode(xdr, 4); |
2516 | if (unlikely(!p)) | |
2517 | goto out_overflow; | |
cccddf4f | 2518 | *len = be32_to_cpup(p); |
c0eae66e BH |
2519 | p = xdr_inline_decode(xdr, *len); |
2520 | if (unlikely(!p)) | |
2521 | goto out_overflow; | |
1da177e4 LT |
2522 | *string = (char *)p; |
2523 | return 0; | |
c0eae66e BH |
2524 | out_overflow: |
2525 | print_overflow_msg(__func__, xdr); | |
2526 | return -EIO; | |
1da177e4 LT |
2527 | } |
2528 | ||
2529 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
2530 | { | |
8687b63a | 2531 | __be32 *p; |
1da177e4 | 2532 | |
c0eae66e BH |
2533 | p = xdr_inline_decode(xdr, 8); |
2534 | if (unlikely(!p)) | |
2535 | goto out_overflow; | |
6f723f77 | 2536 | hdr->status = be32_to_cpup(p++); |
cccddf4f | 2537 | hdr->taglen = be32_to_cpup(p); |
6c0195a4 | 2538 | |
c0eae66e BH |
2539 | p = xdr_inline_decode(xdr, hdr->taglen + 4); |
2540 | if (unlikely(!p)) | |
2541 | goto out_overflow; | |
1da177e4 LT |
2542 | hdr->tag = (char *)p; |
2543 | p += XDR_QUADLEN(hdr->taglen); | |
cccddf4f | 2544 | hdr->nops = be32_to_cpup(p); |
aadf6152 BH |
2545 | if (unlikely(hdr->nops < 1)) |
2546 | return nfs4_stat_to_errno(hdr->status); | |
1da177e4 | 2547 | return 0; |
c0eae66e BH |
2548 | out_overflow: |
2549 | print_overflow_msg(__func__, xdr); | |
2550 | return -EIO; | |
1da177e4 LT |
2551 | } |
2552 | ||
2553 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) | |
2554 | { | |
8687b63a | 2555 | __be32 *p; |
1da177e4 LT |
2556 | uint32_t opnum; |
2557 | int32_t nfserr; | |
2558 | ||
c0eae66e BH |
2559 | p = xdr_inline_decode(xdr, 8); |
2560 | if (unlikely(!p)) | |
2561 | goto out_overflow; | |
6f723f77 | 2562 | opnum = be32_to_cpup(p++); |
1da177e4 | 2563 | if (opnum != expected) { |
fe82a183 CL |
2564 | dprintk("nfs: Server returned operation" |
2565 | " %d but we issued a request for %d\n", | |
1da177e4 LT |
2566 | opnum, expected); |
2567 | return -EIO; | |
2568 | } | |
cccddf4f | 2569 | nfserr = be32_to_cpup(p); |
1da177e4 | 2570 | if (nfserr != NFS_OK) |
856dff3d | 2571 | return nfs4_stat_to_errno(nfserr); |
1da177e4 | 2572 | return 0; |
c0eae66e BH |
2573 | out_overflow: |
2574 | print_overflow_msg(__func__, xdr); | |
2575 | return -EIO; | |
1da177e4 LT |
2576 | } |
2577 | ||
2578 | /* Dummy routine */ | |
adfa6f98 | 2579 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
1da177e4 | 2580 | { |
8687b63a | 2581 | __be32 *p; |
683b57b4 | 2582 | unsigned int strlen; |
1da177e4 LT |
2583 | char *str; |
2584 | ||
c0eae66e BH |
2585 | p = xdr_inline_decode(xdr, 12); |
2586 | if (likely(p)) | |
2587 | return decode_opaque_inline(xdr, &strlen, &str); | |
2588 | print_overflow_msg(__func__, xdr); | |
2589 | return -EIO; | |
1da177e4 LT |
2590 | } |
2591 | ||
2592 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) | |
2593 | { | |
8687b63a AV |
2594 | uint32_t bmlen; |
2595 | __be32 *p; | |
1da177e4 | 2596 | |
c0eae66e BH |
2597 | p = xdr_inline_decode(xdr, 4); |
2598 | if (unlikely(!p)) | |
2599 | goto out_overflow; | |
cccddf4f | 2600 | bmlen = be32_to_cpup(p); |
1da177e4 LT |
2601 | |
2602 | bitmap[0] = bitmap[1] = 0; | |
c0eae66e BH |
2603 | p = xdr_inline_decode(xdr, (bmlen << 2)); |
2604 | if (unlikely(!p)) | |
2605 | goto out_overflow; | |
1da177e4 | 2606 | if (bmlen > 0) { |
6f723f77 | 2607 | bitmap[0] = be32_to_cpup(p++); |
1da177e4 | 2608 | if (bmlen > 1) |
cccddf4f | 2609 | bitmap[1] = be32_to_cpup(p); |
1da177e4 LT |
2610 | } |
2611 | return 0; | |
c0eae66e BH |
2612 | out_overflow: |
2613 | print_overflow_msg(__func__, xdr); | |
2614 | return -EIO; | |
1da177e4 LT |
2615 | } |
2616 | ||
8687b63a | 2617 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
1da177e4 | 2618 | { |
8687b63a | 2619 | __be32 *p; |
1da177e4 | 2620 | |
c0eae66e BH |
2621 | p = xdr_inline_decode(xdr, 4); |
2622 | if (unlikely(!p)) | |
2623 | goto out_overflow; | |
cccddf4f | 2624 | *attrlen = be32_to_cpup(p); |
1da177e4 LT |
2625 | *savep = xdr->p; |
2626 | return 0; | |
c0eae66e BH |
2627 | out_overflow: |
2628 | print_overflow_msg(__func__, xdr); | |
2629 | return -EIO; | |
1da177e4 LT |
2630 | } |
2631 | ||
2632 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) | |
2633 | { | |
2634 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { | |
2635 | decode_attr_bitmap(xdr, bitmask); | |
2636 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; | |
2637 | } else | |
2638 | bitmask[0] = bitmask[1] = 0; | |
44109241 | 2639 | dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); |
1da177e4 LT |
2640 | return 0; |
2641 | } | |
2642 | ||
2643 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) | |
2644 | { | |
8687b63a | 2645 | __be32 *p; |
409924e4 | 2646 | int ret = 0; |
1da177e4 LT |
2647 | |
2648 | *type = 0; | |
2649 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) | |
2650 | return -EIO; | |
2651 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { | |
c0eae66e BH |
2652 | p = xdr_inline_decode(xdr, 4); |
2653 | if (unlikely(!p)) | |
2654 | goto out_overflow; | |
cccddf4f | 2655 | *type = be32_to_cpup(p); |
1da177e4 | 2656 | if (*type < NF4REG || *type > NF4NAMEDATTR) { |
3110ff80 | 2657 | dprintk("%s: bad type %d\n", __func__, *type); |
1da177e4 LT |
2658 | return -EIO; |
2659 | } | |
2660 | bitmap[0] &= ~FATTR4_WORD0_TYPE; | |
409924e4 | 2661 | ret = NFS_ATTR_FATTR_TYPE; |
1da177e4 | 2662 | } |
bca79478 | 2663 | dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); |
409924e4 | 2664 | return ret; |
c0eae66e BH |
2665 | out_overflow: |
2666 | print_overflow_msg(__func__, xdr); | |
2667 | return -EIO; | |
1da177e4 LT |
2668 | } |
2669 | ||
2670 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) | |
2671 | { | |
8687b63a | 2672 | __be32 *p; |
409924e4 | 2673 | int ret = 0; |
1da177e4 LT |
2674 | |
2675 | *change = 0; | |
2676 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) | |
2677 | return -EIO; | |
2678 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { | |
c0eae66e BH |
2679 | p = xdr_inline_decode(xdr, 8); |
2680 | if (unlikely(!p)) | |
2681 | goto out_overflow; | |
cccddf4f | 2682 | xdr_decode_hyper(p, change); |
1da177e4 | 2683 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; |
409924e4 | 2684 | ret = NFS_ATTR_FATTR_CHANGE; |
1da177e4 | 2685 | } |
3110ff80 | 2686 | dprintk("%s: change attribute=%Lu\n", __func__, |
1da177e4 | 2687 | (unsigned long long)*change); |
409924e4 | 2688 | return ret; |
c0eae66e BH |
2689 | out_overflow: |
2690 | print_overflow_msg(__func__, xdr); | |
2691 | return -EIO; | |
1da177e4 LT |
2692 | } |
2693 | ||
2694 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) | |
2695 | { | |
8687b63a | 2696 | __be32 *p; |
409924e4 | 2697 | int ret = 0; |
1da177e4 LT |
2698 | |
2699 | *size = 0; | |
2700 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) | |
2701 | return -EIO; | |
2702 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { | |
c0eae66e BH |
2703 | p = xdr_inline_decode(xdr, 8); |
2704 | if (unlikely(!p)) | |
2705 | goto out_overflow; | |
cccddf4f | 2706 | xdr_decode_hyper(p, size); |
1da177e4 | 2707 | bitmap[0] &= ~FATTR4_WORD0_SIZE; |
409924e4 | 2708 | ret = NFS_ATTR_FATTR_SIZE; |
1da177e4 | 2709 | } |
3110ff80 | 2710 | dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); |
409924e4 | 2711 | return ret; |
c0eae66e BH |
2712 | out_overflow: |
2713 | print_overflow_msg(__func__, xdr); | |
2714 | return -EIO; | |
1da177e4 LT |
2715 | } |
2716 | ||
2717 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2718 | { | |
8687b63a | 2719 | __be32 *p; |
1da177e4 LT |
2720 | |
2721 | *res = 0; | |
2722 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) | |
2723 | return -EIO; | |
2724 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { | |
c0eae66e BH |
2725 | p = xdr_inline_decode(xdr, 4); |
2726 | if (unlikely(!p)) | |
2727 | goto out_overflow; | |
cccddf4f | 2728 | *res = be32_to_cpup(p); |
1da177e4 LT |
2729 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; |
2730 | } | |
3110ff80 | 2731 | dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 | 2732 | return 0; |
c0eae66e BH |
2733 | out_overflow: |
2734 | print_overflow_msg(__func__, xdr); | |
2735 | return -EIO; | |
1da177e4 LT |
2736 | } |
2737 | ||
2738 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2739 | { | |
8687b63a | 2740 | __be32 *p; |
1da177e4 LT |
2741 | |
2742 | *res = 0; | |
2743 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) | |
2744 | return -EIO; | |
2745 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { | |
c0eae66e BH |
2746 | p = xdr_inline_decode(xdr, 4); |
2747 | if (unlikely(!p)) | |
2748 | goto out_overflow; | |
cccddf4f | 2749 | *res = be32_to_cpup(p); |
1da177e4 LT |
2750 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; |
2751 | } | |
3110ff80 | 2752 | dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 | 2753 | return 0; |
c0eae66e BH |
2754 | out_overflow: |
2755 | print_overflow_msg(__func__, xdr); | |
2756 | return -EIO; | |
1da177e4 LT |
2757 | } |
2758 | ||
8b4bdcf8 | 2759 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
1da177e4 | 2760 | { |
8687b63a | 2761 | __be32 *p; |
409924e4 | 2762 | int ret = 0; |
1da177e4 LT |
2763 | |
2764 | fsid->major = 0; | |
2765 | fsid->minor = 0; | |
2766 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) | |
2767 | return -EIO; | |
2768 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { | |
c0eae66e BH |
2769 | p = xdr_inline_decode(xdr, 16); |
2770 | if (unlikely(!p)) | |
2771 | goto out_overflow; | |
3ceb4dbb | 2772 | p = xdr_decode_hyper(p, &fsid->major); |
cccddf4f | 2773 | xdr_decode_hyper(p, &fsid->minor); |
1da177e4 | 2774 | bitmap[0] &= ~FATTR4_WORD0_FSID; |
409924e4 | 2775 | ret = NFS_ATTR_FATTR_FSID; |
1da177e4 | 2776 | } |
3110ff80 | 2777 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, |
1da177e4 LT |
2778 | (unsigned long long)fsid->major, |
2779 | (unsigned long long)fsid->minor); | |
409924e4 | 2780 | return ret; |
c0eae66e BH |
2781 | out_overflow: |
2782 | print_overflow_msg(__func__, xdr); | |
2783 | return -EIO; | |
1da177e4 LT |
2784 | } |
2785 | ||
2786 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2787 | { | |
8687b63a | 2788 | __be32 *p; |
1da177e4 LT |
2789 | |
2790 | *res = 60; | |
2791 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) | |
2792 | return -EIO; | |
2793 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { | |
c0eae66e BH |
2794 | p = xdr_inline_decode(xdr, 4); |
2795 | if (unlikely(!p)) | |
2796 | goto out_overflow; | |
cccddf4f | 2797 | *res = be32_to_cpup(p); |
1da177e4 LT |
2798 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; |
2799 | } | |
3110ff80 | 2800 | dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); |
1da177e4 | 2801 | return 0; |
c0eae66e BH |
2802 | out_overflow: |
2803 | print_overflow_msg(__func__, xdr); | |
2804 | return -EIO; | |
1da177e4 LT |
2805 | } |
2806 | ||
2807 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2808 | { | |
8687b63a | 2809 | __be32 *p; |
1da177e4 LT |
2810 | |
2811 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; | |
2812 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) | |
2813 | return -EIO; | |
2814 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { | |
c0eae66e BH |
2815 | p = xdr_inline_decode(xdr, 4); |
2816 | if (unlikely(!p)) | |
2817 | goto out_overflow; | |
cccddf4f | 2818 | *res = be32_to_cpup(p); |
1da177e4 LT |
2819 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; |
2820 | } | |
3110ff80 | 2821 | dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); |
1da177e4 | 2822 | return 0; |
c0eae66e BH |
2823 | out_overflow: |
2824 | print_overflow_msg(__func__, xdr); | |
2825 | return -EIO; | |
1da177e4 LT |
2826 | } |
2827 | ||
2828 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) | |
2829 | { | |
8687b63a | 2830 | __be32 *p; |
409924e4 | 2831 | int ret = 0; |
1da177e4 LT |
2832 | |
2833 | *fileid = 0; | |
2834 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) | |
2835 | return -EIO; | |
2836 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { | |
c0eae66e BH |
2837 | p = xdr_inline_decode(xdr, 8); |
2838 | if (unlikely(!p)) | |
2839 | goto out_overflow; | |
cccddf4f | 2840 | xdr_decode_hyper(p, fileid); |
1da177e4 | 2841 | bitmap[0] &= ~FATTR4_WORD0_FILEID; |
409924e4 | 2842 | ret = NFS_ATTR_FATTR_FILEID; |
1da177e4 | 2843 | } |
3110ff80 | 2844 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2845 | return ret; |
c0eae66e BH |
2846 | out_overflow: |
2847 | print_overflow_msg(__func__, xdr); | |
2848 | return -EIO; | |
1da177e4 LT |
2849 | } |
2850 | ||
99baf625 MN |
2851 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
2852 | { | |
8687b63a | 2853 | __be32 *p; |
409924e4 | 2854 | int ret = 0; |
99baf625 MN |
2855 | |
2856 | *fileid = 0; | |
2857 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) | |
2858 | return -EIO; | |
2859 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { | |
c0eae66e BH |
2860 | p = xdr_inline_decode(xdr, 8); |
2861 | if (unlikely(!p)) | |
2862 | goto out_overflow; | |
cccddf4f | 2863 | xdr_decode_hyper(p, fileid); |
99baf625 | 2864 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; |
409924e4 | 2865 | ret = NFS_ATTR_FATTR_FILEID; |
99baf625 | 2866 | } |
3110ff80 | 2867 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2868 | return ret; |
c0eae66e BH |
2869 | out_overflow: |
2870 | print_overflow_msg(__func__, xdr); | |
2871 | return -EIO; | |
99baf625 MN |
2872 | } |
2873 | ||
1da177e4 LT |
2874 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2875 | { | |
8687b63a | 2876 | __be32 *p; |
1da177e4 LT |
2877 | int status = 0; |
2878 | ||
2879 | *res = 0; | |
2880 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) | |
2881 | return -EIO; | |
2882 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { | |
c0eae66e BH |
2883 | p = xdr_inline_decode(xdr, 8); |
2884 | if (unlikely(!p)) | |
2885 | goto out_overflow; | |
cccddf4f | 2886 | xdr_decode_hyper(p, res); |
1da177e4 LT |
2887 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; |
2888 | } | |
3110ff80 | 2889 | dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 2890 | return status; |
c0eae66e BH |
2891 | out_overflow: |
2892 | print_overflow_msg(__func__, xdr); | |
2893 | return -EIO; | |
1da177e4 LT |
2894 | } |
2895 | ||
2896 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2897 | { | |
8687b63a | 2898 | __be32 *p; |
1da177e4 LT |
2899 | int status = 0; |
2900 | ||
2901 | *res = 0; | |
2902 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) | |
2903 | return -EIO; | |
2904 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { | |
c0eae66e BH |
2905 | p = xdr_inline_decode(xdr, 8); |
2906 | if (unlikely(!p)) | |
2907 | goto out_overflow; | |
cccddf4f | 2908 | xdr_decode_hyper(p, res); |
1da177e4 LT |
2909 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; |
2910 | } | |
3110ff80 | 2911 | dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 2912 | return status; |
c0eae66e BH |
2913 | out_overflow: |
2914 | print_overflow_msg(__func__, xdr); | |
2915 | return -EIO; | |
1da177e4 LT |
2916 | } |
2917 | ||
2918 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2919 | { | |
8687b63a | 2920 | __be32 *p; |
1da177e4 LT |
2921 | int status = 0; |
2922 | ||
2923 | *res = 0; | |
2924 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) | |
2925 | return -EIO; | |
2926 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { | |
c0eae66e BH |
2927 | p = xdr_inline_decode(xdr, 8); |
2928 | if (unlikely(!p)) | |
2929 | goto out_overflow; | |
cccddf4f | 2930 | xdr_decode_hyper(p, res); |
1da177e4 LT |
2931 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; |
2932 | } | |
3110ff80 | 2933 | dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 2934 | return status; |
c0eae66e BH |
2935 | out_overflow: |
2936 | print_overflow_msg(__func__, xdr); | |
2937 | return -EIO; | |
1da177e4 LT |
2938 | } |
2939 | ||
7aaa0b3b MN |
2940 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
2941 | { | |
464ad6b1 | 2942 | u32 n; |
8687b63a | 2943 | __be32 *p; |
7aaa0b3b MN |
2944 | int status = 0; |
2945 | ||
c0eae66e BH |
2946 | p = xdr_inline_decode(xdr, 4); |
2947 | if (unlikely(!p)) | |
2948 | goto out_overflow; | |
cccddf4f | 2949 | n = be32_to_cpup(p); |
33a43f28 AA |
2950 | if (n == 0) |
2951 | goto root_path; | |
7aaa0b3b MN |
2952 | dprintk("path "); |
2953 | path->ncomponents = 0; | |
2954 | while (path->ncomponents < n) { | |
2955 | struct nfs4_string *component = &path->components[path->ncomponents]; | |
2956 | status = decode_opaque_inline(xdr, &component->len, &component->data); | |
2957 | if (unlikely(status != 0)) | |
2958 | goto out_eio; | |
2959 | if (path->ncomponents != n) | |
2960 | dprintk("/"); | |
2961 | dprintk("%s", component->data); | |
2962 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) | |
2963 | path->ncomponents++; | |
2964 | else { | |
2965 | dprintk("cannot parse %d components in path\n", n); | |
2966 | goto out_eio; | |
2967 | } | |
2968 | } | |
2969 | out: | |
2970 | dprintk("\n"); | |
2971 | return status; | |
33a43f28 AA |
2972 | root_path: |
2973 | /* a root pathname is sent as a zero component4 */ | |
2974 | path->ncomponents = 1; | |
2975 | path->components[0].len=0; | |
2976 | path->components[0].data=NULL; | |
2977 | dprintk("path /\n"); | |
2978 | goto out; | |
7aaa0b3b MN |
2979 | out_eio: |
2980 | dprintk(" status %d", status); | |
2981 | status = -EIO; | |
2982 | goto out; | |
c0eae66e BH |
2983 | out_overflow: |
2984 | print_overflow_msg(__func__, xdr); | |
2985 | return -EIO; | |
7aaa0b3b MN |
2986 | } |
2987 | ||
2988 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) | |
683b57b4 TM |
2989 | { |
2990 | int n; | |
8687b63a | 2991 | __be32 *p; |
683b57b4 TM |
2992 | int status = -EIO; |
2993 | ||
2994 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) | |
2995 | goto out; | |
2996 | status = 0; | |
2997 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) | |
2998 | goto out; | |
3110ff80 | 2999 | dprintk("%s: fsroot ", __func__); |
7aaa0b3b | 3000 | status = decode_pathname(xdr, &res->fs_path); |
683b57b4 TM |
3001 | if (unlikely(status != 0)) |
3002 | goto out; | |
c0eae66e BH |
3003 | p = xdr_inline_decode(xdr, 4); |
3004 | if (unlikely(!p)) | |
3005 | goto out_overflow; | |
cccddf4f | 3006 | n = be32_to_cpup(p); |
683b57b4 TM |
3007 | if (n <= 0) |
3008 | goto out_eio; | |
3009 | res->nlocations = 0; | |
3010 | while (res->nlocations < n) { | |
464ad6b1 | 3011 | u32 m; |
7aaa0b3b | 3012 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; |
683b57b4 | 3013 | |
c0eae66e BH |
3014 | p = xdr_inline_decode(xdr, 4); |
3015 | if (unlikely(!p)) | |
3016 | goto out_overflow; | |
cccddf4f | 3017 | m = be32_to_cpup(p); |
7aaa0b3b MN |
3018 | |
3019 | loc->nservers = 0; | |
3110ff80 | 3020 | dprintk("%s: servers ", __func__); |
7aaa0b3b MN |
3021 | while (loc->nservers < m) { |
3022 | struct nfs4_string *server = &loc->servers[loc->nservers]; | |
3023 | status = decode_opaque_inline(xdr, &server->len, &server->data); | |
3024 | if (unlikely(status != 0)) | |
3025 | goto out_eio; | |
3026 | dprintk("%s ", server->data); | |
3027 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) | |
3028 | loc->nservers++; | |
3029 | else { | |
464ad6b1 CL |
3030 | unsigned int i; |
3031 | dprintk("%s: using first %u of %u servers " | |
3032 | "returned for location %u\n", | |
3110ff80 | 3033 | __func__, |
464ad6b1 CL |
3034 | NFS4_FS_LOCATION_MAXSERVERS, |
3035 | m, res->nlocations); | |
7aaa0b3b | 3036 | for (i = loc->nservers; i < m; i++) { |
2e42c3e2 | 3037 | unsigned int len; |
7aaa0b3b MN |
3038 | char *data; |
3039 | status = decode_opaque_inline(xdr, &len, &data); | |
3040 | if (unlikely(status != 0)) | |
3041 | goto out_eio; | |
3042 | } | |
3043 | } | |
3044 | } | |
3045 | status = decode_pathname(xdr, &loc->rootpath); | |
683b57b4 TM |
3046 | if (unlikely(status != 0)) |
3047 | goto out_eio; | |
7aaa0b3b | 3048 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
683b57b4 TM |
3049 | res->nlocations++; |
3050 | } | |
409924e4 TM |
3051 | if (res->nlocations != 0) |
3052 | status = NFS_ATTR_FATTR_V4_REFERRAL; | |
683b57b4 | 3053 | out: |
3110ff80 | 3054 | dprintk("%s: fs_locations done, error = %d\n", __func__, status); |
683b57b4 | 3055 | return status; |
c0eae66e BH |
3056 | out_overflow: |
3057 | print_overflow_msg(__func__, xdr); | |
683b57b4 TM |
3058 | out_eio: |
3059 | status = -EIO; | |
3060 | goto out; | |
3061 | } | |
3062 | ||
1da177e4 LT |
3063 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
3064 | { | |
8687b63a | 3065 | __be32 *p; |
1da177e4 LT |
3066 | int status = 0; |
3067 | ||
3068 | *res = 0; | |
3069 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) | |
3070 | return -EIO; | |
3071 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { | |
c0eae66e BH |
3072 | p = xdr_inline_decode(xdr, 8); |
3073 | if (unlikely(!p)) | |
3074 | goto out_overflow; | |
cccddf4f | 3075 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3076 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; |
3077 | } | |
3110ff80 | 3078 | dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3079 | return status; |
c0eae66e BH |
3080 | out_overflow: |
3081 | print_overflow_msg(__func__, xdr); | |
3082 | return -EIO; | |
1da177e4 LT |
3083 | } |
3084 | ||
3085 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) | |
3086 | { | |
8687b63a | 3087 | __be32 *p; |
1da177e4 LT |
3088 | int status = 0; |
3089 | ||
3090 | *maxlink = 1; | |
3091 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) | |
3092 | return -EIO; | |
3093 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { | |
c0eae66e BH |
3094 | p = xdr_inline_decode(xdr, 4); |
3095 | if (unlikely(!p)) | |
3096 | goto out_overflow; | |
cccddf4f | 3097 | *maxlink = be32_to_cpup(p); |
1da177e4 LT |
3098 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; |
3099 | } | |
3110ff80 | 3100 | dprintk("%s: maxlink=%u\n", __func__, *maxlink); |
1da177e4 | 3101 | return status; |
c0eae66e BH |
3102 | out_overflow: |
3103 | print_overflow_msg(__func__, xdr); | |
3104 | return -EIO; | |
1da177e4 LT |
3105 | } |
3106 | ||
3107 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) | |
3108 | { | |
8687b63a | 3109 | __be32 *p; |
1da177e4 LT |
3110 | int status = 0; |
3111 | ||
3112 | *maxname = 1024; | |
3113 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) | |
3114 | return -EIO; | |
3115 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { | |
c0eae66e BH |
3116 | p = xdr_inline_decode(xdr, 4); |
3117 | if (unlikely(!p)) | |
3118 | goto out_overflow; | |
cccddf4f | 3119 | *maxname = be32_to_cpup(p); |
1da177e4 LT |
3120 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; |
3121 | } | |
3110ff80 | 3122 | dprintk("%s: maxname=%u\n", __func__, *maxname); |
1da177e4 | 3123 | return status; |
c0eae66e BH |
3124 | out_overflow: |
3125 | print_overflow_msg(__func__, xdr); | |
3126 | return -EIO; | |
1da177e4 LT |
3127 | } |
3128 | ||
3129 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
3130 | { | |
8687b63a | 3131 | __be32 *p; |
1da177e4 LT |
3132 | int status = 0; |
3133 | ||
3134 | *res = 1024; | |
3135 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) | |
3136 | return -EIO; | |
3137 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { | |
3138 | uint64_t maxread; | |
c0eae66e BH |
3139 | p = xdr_inline_decode(xdr, 8); |
3140 | if (unlikely(!p)) | |
3141 | goto out_overflow; | |
cccddf4f | 3142 | xdr_decode_hyper(p, &maxread); |
1da177e4 LT |
3143 | if (maxread > 0x7FFFFFFF) |
3144 | maxread = 0x7FFFFFFF; | |
3145 | *res = (uint32_t)maxread; | |
3146 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; | |
3147 | } | |
3110ff80 | 3148 | dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); |
1da177e4 | 3149 | return status; |
c0eae66e BH |
3150 | out_overflow: |
3151 | print_overflow_msg(__func__, xdr); | |
3152 | return -EIO; | |
1da177e4 LT |
3153 | } |
3154 | ||
3155 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
3156 | { | |
8687b63a | 3157 | __be32 *p; |
1da177e4 LT |
3158 | int status = 0; |
3159 | ||
3160 | *res = 1024; | |
3161 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) | |
3162 | return -EIO; | |
3163 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { | |
3164 | uint64_t maxwrite; | |
c0eae66e BH |
3165 | p = xdr_inline_decode(xdr, 8); |
3166 | if (unlikely(!p)) | |
3167 | goto out_overflow; | |
cccddf4f | 3168 | xdr_decode_hyper(p, &maxwrite); |
1da177e4 LT |
3169 | if (maxwrite > 0x7FFFFFFF) |
3170 | maxwrite = 0x7FFFFFFF; | |
3171 | *res = (uint32_t)maxwrite; | |
3172 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; | |
3173 | } | |
3110ff80 | 3174 | dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); |
1da177e4 | 3175 | return status; |
c0eae66e BH |
3176 | out_overflow: |
3177 | print_overflow_msg(__func__, xdr); | |
3178 | return -EIO; | |
1da177e4 LT |
3179 | } |
3180 | ||
bca79478 | 3181 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) |
1da177e4 | 3182 | { |
bca79478 | 3183 | uint32_t tmp; |
8687b63a | 3184 | __be32 *p; |
409924e4 | 3185 | int ret = 0; |
1da177e4 LT |
3186 | |
3187 | *mode = 0; | |
3188 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) | |
3189 | return -EIO; | |
3190 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { | |
c0eae66e BH |
3191 | p = xdr_inline_decode(xdr, 4); |
3192 | if (unlikely(!p)) | |
3193 | goto out_overflow; | |
cccddf4f | 3194 | tmp = be32_to_cpup(p); |
bca79478 | 3195 | *mode = tmp & ~S_IFMT; |
1da177e4 | 3196 | bitmap[1] &= ~FATTR4_WORD1_MODE; |
409924e4 | 3197 | ret = NFS_ATTR_FATTR_MODE; |
1da177e4 | 3198 | } |
3110ff80 | 3199 | dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); |
409924e4 | 3200 | return ret; |
c0eae66e BH |
3201 | out_overflow: |
3202 | print_overflow_msg(__func__, xdr); | |
3203 | return -EIO; | |
1da177e4 LT |
3204 | } |
3205 | ||
3206 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) | |
3207 | { | |
8687b63a | 3208 | __be32 *p; |
409924e4 | 3209 | int ret = 0; |
1da177e4 LT |
3210 | |
3211 | *nlink = 1; | |
3212 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) | |
3213 | return -EIO; | |
3214 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { | |
c0eae66e BH |
3215 | p = xdr_inline_decode(xdr, 4); |
3216 | if (unlikely(!p)) | |
3217 | goto out_overflow; | |
cccddf4f | 3218 | *nlink = be32_to_cpup(p); |
1da177e4 | 3219 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; |
409924e4 | 3220 | ret = NFS_ATTR_FATTR_NLINK; |
1da177e4 | 3221 | } |
3110ff80 | 3222 | dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); |
409924e4 | 3223 | return ret; |
c0eae66e BH |
3224 | out_overflow: |
3225 | print_overflow_msg(__func__, xdr); | |
3226 | return -EIO; | |
1da177e4 LT |
3227 | } |
3228 | ||
80e52ace TM |
3229 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, |
3230 | struct nfs_client *clp, uint32_t *uid, int may_sleep) | |
1da177e4 | 3231 | { |
8687b63a AV |
3232 | uint32_t len; |
3233 | __be32 *p; | |
409924e4 | 3234 | int ret = 0; |
1da177e4 LT |
3235 | |
3236 | *uid = -2; | |
3237 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) | |
3238 | return -EIO; | |
3239 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { | |
c0eae66e BH |
3240 | p = xdr_inline_decode(xdr, 4); |
3241 | if (unlikely(!p)) | |
3242 | goto out_overflow; | |
cccddf4f | 3243 | len = be32_to_cpup(p); |
c0eae66e BH |
3244 | p = xdr_inline_decode(xdr, len); |
3245 | if (unlikely(!p)) | |
3246 | goto out_overflow; | |
80e52ace TM |
3247 | if (!may_sleep) { |
3248 | /* do nothing */ | |
3249 | } else if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
3250 | if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) |
3251 | ret = NFS_ATTR_FATTR_OWNER; | |
3252 | else | |
1da177e4 | 3253 | dprintk("%s: nfs_map_name_to_uid failed!\n", |
3110ff80 | 3254 | __func__); |
1da177e4 | 3255 | } else |
fe82a183 | 3256 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3257 | __func__, len); |
1da177e4 LT |
3258 | bitmap[1] &= ~FATTR4_WORD1_OWNER; |
3259 | } | |
3110ff80 | 3260 | dprintk("%s: uid=%d\n", __func__, (int)*uid); |
409924e4 | 3261 | return ret; |
c0eae66e BH |
3262 | out_overflow: |
3263 | print_overflow_msg(__func__, xdr); | |
3264 | return -EIO; | |
1da177e4 LT |
3265 | } |
3266 | ||
80e52ace TM |
3267 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, |
3268 | struct nfs_client *clp, uint32_t *gid, int may_sleep) | |
1da177e4 | 3269 | { |
8687b63a AV |
3270 | uint32_t len; |
3271 | __be32 *p; | |
409924e4 | 3272 | int ret = 0; |
1da177e4 LT |
3273 | |
3274 | *gid = -2; | |
3275 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) | |
3276 | return -EIO; | |
3277 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { | |
c0eae66e BH |
3278 | p = xdr_inline_decode(xdr, 4); |
3279 | if (unlikely(!p)) | |
3280 | goto out_overflow; | |
cccddf4f | 3281 | len = be32_to_cpup(p); |
c0eae66e BH |
3282 | p = xdr_inline_decode(xdr, len); |
3283 | if (unlikely(!p)) | |
3284 | goto out_overflow; | |
80e52ace TM |
3285 | if (!may_sleep) { |
3286 | /* do nothing */ | |
3287 | } else if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
3288 | if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) |
3289 | ret = NFS_ATTR_FATTR_GROUP; | |
3290 | else | |
1da177e4 | 3291 | dprintk("%s: nfs_map_group_to_gid failed!\n", |
3110ff80 | 3292 | __func__); |
1da177e4 | 3293 | } else |
fe82a183 | 3294 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3295 | __func__, len); |
1da177e4 LT |
3296 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; |
3297 | } | |
3110ff80 | 3298 | dprintk("%s: gid=%d\n", __func__, (int)*gid); |
409924e4 | 3299 | return ret; |
c0eae66e BH |
3300 | out_overflow: |
3301 | print_overflow_msg(__func__, xdr); | |
3302 | return -EIO; | |
1da177e4 LT |
3303 | } |
3304 | ||
3305 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) | |
3306 | { | |
8687b63a AV |
3307 | uint32_t major = 0, minor = 0; |
3308 | __be32 *p; | |
409924e4 | 3309 | int ret = 0; |
1da177e4 LT |
3310 | |
3311 | *rdev = MKDEV(0,0); | |
3312 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) | |
3313 | return -EIO; | |
3314 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { | |
3315 | dev_t tmp; | |
3316 | ||
c0eae66e BH |
3317 | p = xdr_inline_decode(xdr, 8); |
3318 | if (unlikely(!p)) | |
3319 | goto out_overflow; | |
6f723f77 | 3320 | major = be32_to_cpup(p++); |
cccddf4f | 3321 | minor = be32_to_cpup(p); |
1da177e4 LT |
3322 | tmp = MKDEV(major, minor); |
3323 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) | |
3324 | *rdev = tmp; | |
3325 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; | |
409924e4 | 3326 | ret = NFS_ATTR_FATTR_RDEV; |
1da177e4 | 3327 | } |
3110ff80 | 3328 | dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); |
409924e4 | 3329 | return ret; |
c0eae66e BH |
3330 | out_overflow: |
3331 | print_overflow_msg(__func__, xdr); | |
3332 | return -EIO; | |
1da177e4 LT |
3333 | } |
3334 | ||
3335 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3336 | { | |
8687b63a | 3337 | __be32 *p; |
1da177e4 LT |
3338 | int status = 0; |
3339 | ||
3340 | *res = 0; | |
3341 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) | |
3342 | return -EIO; | |
3343 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { | |
c0eae66e BH |
3344 | p = xdr_inline_decode(xdr, 8); |
3345 | if (unlikely(!p)) | |
3346 | goto out_overflow; | |
cccddf4f | 3347 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3348 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; |
3349 | } | |
3110ff80 | 3350 | dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3351 | return status; |
c0eae66e BH |
3352 | out_overflow: |
3353 | print_overflow_msg(__func__, xdr); | |
3354 | return -EIO; | |
1da177e4 LT |
3355 | } |
3356 | ||
3357 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3358 | { | |
8687b63a | 3359 | __be32 *p; |
1da177e4 LT |
3360 | int status = 0; |
3361 | ||
3362 | *res = 0; | |
3363 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) | |
3364 | return -EIO; | |
3365 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { | |
c0eae66e BH |
3366 | p = xdr_inline_decode(xdr, 8); |
3367 | if (unlikely(!p)) | |
3368 | goto out_overflow; | |
cccddf4f | 3369 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3370 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; |
3371 | } | |
3110ff80 | 3372 | dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3373 | return status; |
c0eae66e BH |
3374 | out_overflow: |
3375 | print_overflow_msg(__func__, xdr); | |
3376 | return -EIO; | |
1da177e4 LT |
3377 | } |
3378 | ||
3379 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3380 | { | |
8687b63a | 3381 | __be32 *p; |
1da177e4 LT |
3382 | int status = 0; |
3383 | ||
3384 | *res = 0; | |
3385 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) | |
3386 | return -EIO; | |
3387 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { | |
c0eae66e BH |
3388 | p = xdr_inline_decode(xdr, 8); |
3389 | if (unlikely(!p)) | |
3390 | goto out_overflow; | |
cccddf4f | 3391 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3392 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; |
3393 | } | |
3110ff80 | 3394 | dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3395 | return status; |
c0eae66e BH |
3396 | out_overflow: |
3397 | print_overflow_msg(__func__, xdr); | |
3398 | return -EIO; | |
1da177e4 LT |
3399 | } |
3400 | ||
3401 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) | |
3402 | { | |
8687b63a | 3403 | __be32 *p; |
409924e4 | 3404 | int ret = 0; |
1da177e4 LT |
3405 | |
3406 | *used = 0; | |
3407 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) | |
3408 | return -EIO; | |
3409 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { | |
c0eae66e BH |
3410 | p = xdr_inline_decode(xdr, 8); |
3411 | if (unlikely(!p)) | |
3412 | goto out_overflow; | |
cccddf4f | 3413 | xdr_decode_hyper(p, used); |
1da177e4 | 3414 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; |
409924e4 | 3415 | ret = NFS_ATTR_FATTR_SPACE_USED; |
1da177e4 | 3416 | } |
3110ff80 | 3417 | dprintk("%s: space used=%Lu\n", __func__, |
1da177e4 | 3418 | (unsigned long long)*used); |
409924e4 | 3419 | return ret; |
c0eae66e BH |
3420 | out_overflow: |
3421 | print_overflow_msg(__func__, xdr); | |
3422 | return -EIO; | |
1da177e4 LT |
3423 | } |
3424 | ||
3425 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) | |
3426 | { | |
8687b63a | 3427 | __be32 *p; |
1da177e4 LT |
3428 | uint64_t sec; |
3429 | uint32_t nsec; | |
3430 | ||
c0eae66e BH |
3431 | p = xdr_inline_decode(xdr, 12); |
3432 | if (unlikely(!p)) | |
3433 | goto out_overflow; | |
3ceb4dbb | 3434 | p = xdr_decode_hyper(p, &sec); |
cccddf4f | 3435 | nsec = be32_to_cpup(p); |
1da177e4 LT |
3436 | time->tv_sec = (time_t)sec; |
3437 | time->tv_nsec = (long)nsec; | |
3438 | return 0; | |
c0eae66e BH |
3439 | out_overflow: |
3440 | print_overflow_msg(__func__, xdr); | |
3441 | return -EIO; | |
1da177e4 LT |
3442 | } |
3443 | ||
3444 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3445 | { | |
3446 | int status = 0; | |
3447 | ||
3448 | time->tv_sec = 0; | |
3449 | time->tv_nsec = 0; | |
3450 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) | |
3451 | return -EIO; | |
3452 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { | |
3453 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3454 | if (status == 0) |
3455 | status = NFS_ATTR_FATTR_ATIME; | |
1da177e4 LT |
3456 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; |
3457 | } | |
3110ff80 | 3458 | dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3459 | return status; |
3460 | } | |
3461 | ||
3462 | static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3463 | { | |
3464 | int status = 0; | |
3465 | ||
3466 | time->tv_sec = 0; | |
3467 | time->tv_nsec = 0; | |
3468 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) | |
3469 | return -EIO; | |
3470 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { | |
3471 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3472 | if (status == 0) |
3473 | status = NFS_ATTR_FATTR_CTIME; | |
1da177e4 LT |
3474 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; |
3475 | } | |
3110ff80 | 3476 | dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3477 | return status; |
3478 | } | |
3479 | ||
3480 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3481 | { | |
3482 | int status = 0; | |
3483 | ||
3484 | time->tv_sec = 0; | |
3485 | time->tv_nsec = 0; | |
3486 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) | |
3487 | return -EIO; | |
3488 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { | |
3489 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3490 | if (status == 0) |
3491 | status = NFS_ATTR_FATTR_MTIME; | |
1da177e4 LT |
3492 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; |
3493 | } | |
3110ff80 | 3494 | dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3495 | return status; |
3496 | } | |
3497 | ||
8687b63a | 3498 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
1da177e4 LT |
3499 | { |
3500 | unsigned int attrwords = XDR_QUADLEN(attrlen); | |
3501 | unsigned int nwords = xdr->p - savep; | |
3502 | ||
3503 | if (unlikely(attrwords != nwords)) { | |
fe82a183 CL |
3504 | dprintk("%s: server returned incorrect attribute length: " |
3505 | "%u %c %u\n", | |
3110ff80 | 3506 | __func__, |
1da177e4 LT |
3507 | attrwords << 2, |
3508 | (attrwords < nwords) ? '<' : '>', | |
3509 | nwords << 2); | |
3510 | return -EIO; | |
3511 | } | |
3512 | return 0; | |
3513 | } | |
3514 | ||
3515 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3516 | { | |
8687b63a | 3517 | __be32 *p; |
1da177e4 | 3518 | |
c0eae66e BH |
3519 | p = xdr_inline_decode(xdr, 20); |
3520 | if (unlikely(!p)) | |
3521 | goto out_overflow; | |
6f723f77 | 3522 | cinfo->atomic = be32_to_cpup(p++); |
3ceb4dbb | 3523 | p = xdr_decode_hyper(p, &cinfo->before); |
cccddf4f | 3524 | xdr_decode_hyper(p, &cinfo->after); |
1da177e4 | 3525 | return 0; |
c0eae66e BH |
3526 | out_overflow: |
3527 | print_overflow_msg(__func__, xdr); | |
3528 | return -EIO; | |
1da177e4 LT |
3529 | } |
3530 | ||
3531 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) | |
3532 | { | |
8687b63a | 3533 | __be32 *p; |
1da177e4 LT |
3534 | uint32_t supp, acc; |
3535 | int status; | |
3536 | ||
3537 | status = decode_op_hdr(xdr, OP_ACCESS); | |
3538 | if (status) | |
3539 | return status; | |
c0eae66e BH |
3540 | p = xdr_inline_decode(xdr, 8); |
3541 | if (unlikely(!p)) | |
3542 | goto out_overflow; | |
6f723f77 | 3543 | supp = be32_to_cpup(p++); |
cccddf4f | 3544 | acc = be32_to_cpup(p); |
1da177e4 LT |
3545 | access->supported = supp; |
3546 | access->access = acc; | |
3547 | return 0; | |
c0eae66e BH |
3548 | out_overflow: |
3549 | print_overflow_msg(__func__, xdr); | |
3550 | return -EIO; | |
1da177e4 LT |
3551 | } |
3552 | ||
07d30434 | 3553 | static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) |
1da177e4 | 3554 | { |
8687b63a | 3555 | __be32 *p; |
07d30434 BH |
3556 | |
3557 | p = xdr_inline_decode(xdr, len); | |
3558 | if (likely(p)) { | |
3559 | memcpy(buf, p, len); | |
3560 | return 0; | |
3561 | } | |
3562 | print_overflow_msg(__func__, xdr); | |
3563 | return -EIO; | |
3564 | } | |
3565 | ||
3566 | static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) | |
3567 | { | |
3568 | return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); | |
3569 | } | |
3570 | ||
3571 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3572 | { | |
1da177e4 LT |
3573 | int status; |
3574 | ||
3575 | status = decode_op_hdr(xdr, OP_CLOSE); | |
c1d51931 TM |
3576 | if (status != -EIO) |
3577 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
3578 | if (!status) |
3579 | status = decode_stateid(xdr, &res->stateid); | |
3580 | return status; | |
1da177e4 LT |
3581 | } |
3582 | ||
db942bbd BH |
3583 | static int decode_verifier(struct xdr_stream *xdr, void *verifier) |
3584 | { | |
3585 | return decode_opaque_fixed(xdr, verifier, 8); | |
1da177e4 LT |
3586 | } |
3587 | ||
3588 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3589 | { | |
1da177e4 LT |
3590 | int status; |
3591 | ||
3592 | status = decode_op_hdr(xdr, OP_COMMIT); | |
db942bbd BH |
3593 | if (!status) |
3594 | status = decode_verifier(xdr, res->verf->verifier); | |
3595 | return status; | |
1da177e4 LT |
3596 | } |
3597 | ||
3598 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3599 | { | |
8687b63a | 3600 | __be32 *p; |
1da177e4 LT |
3601 | uint32_t bmlen; |
3602 | int status; | |
3603 | ||
3604 | status = decode_op_hdr(xdr, OP_CREATE); | |
3605 | if (status) | |
3606 | return status; | |
3607 | if ((status = decode_change_info(xdr, cinfo))) | |
3608 | return status; | |
c0eae66e BH |
3609 | p = xdr_inline_decode(xdr, 4); |
3610 | if (unlikely(!p)) | |
3611 | goto out_overflow; | |
cccddf4f | 3612 | bmlen = be32_to_cpup(p); |
c0eae66e BH |
3613 | p = xdr_inline_decode(xdr, bmlen << 2); |
3614 | if (likely(p)) | |
3615 | return 0; | |
3616 | out_overflow: | |
3617 | print_overflow_msg(__func__, xdr); | |
3618 | return -EIO; | |
1da177e4 LT |
3619 | } |
3620 | ||
3621 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) | |
3622 | { | |
8687b63a | 3623 | __be32 *savep; |
6c0195a4 | 3624 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 LT |
3625 | int status; |
3626 | ||
3627 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3628 | goto xdr_error; | |
3629 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3630 | goto xdr_error; | |
3631 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3632 | goto xdr_error; | |
3633 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) | |
3634 | goto xdr_error; | |
3635 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) | |
3636 | goto xdr_error; | |
3637 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) | |
3638 | goto xdr_error; | |
3639 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) | |
3640 | goto xdr_error; | |
3641 | status = verify_attr_len(xdr, savep, attrlen); | |
3642 | xdr_error: | |
3110ff80 | 3643 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3644 | return status; |
3645 | } | |
6c0195a4 | 3646 | |
1da177e4 LT |
3647 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) |
3648 | { | |
8687b63a | 3649 | __be32 *savep; |
6c0195a4 | 3650 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3651 | int status; |
6c0195a4 | 3652 | |
1da177e4 LT |
3653 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3654 | goto xdr_error; | |
3655 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3656 | goto xdr_error; | |
3657 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3658 | goto xdr_error; | |
3659 | ||
3660 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) | |
3661 | goto xdr_error; | |
3662 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) | |
3663 | goto xdr_error; | |
3664 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) | |
3665 | goto xdr_error; | |
3666 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) | |
3667 | goto xdr_error; | |
3668 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) | |
3669 | goto xdr_error; | |
3670 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) | |
3671 | goto xdr_error; | |
3672 | ||
3673 | status = verify_attr_len(xdr, savep, attrlen); | |
3674 | xdr_error: | |
3110ff80 | 3675 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3676 | return status; |
3677 | } | |
3678 | ||
3679 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) | |
3680 | { | |
8687b63a | 3681 | __be32 *savep; |
6c0195a4 | 3682 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3683 | int status; |
6c0195a4 | 3684 | |
1da177e4 LT |
3685 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3686 | goto xdr_error; | |
3687 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3688 | goto xdr_error; | |
3689 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3690 | goto xdr_error; | |
3691 | ||
3692 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) | |
3693 | goto xdr_error; | |
3694 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) | |
3695 | goto xdr_error; | |
3696 | ||
3697 | status = verify_attr_len(xdr, savep, attrlen); | |
3698 | xdr_error: | |
3110ff80 | 3699 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3700 | return status; |
3701 | } | |
3702 | ||
80e52ace TM |
3703 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, |
3704 | const struct nfs_server *server, int may_sleep) | |
1da177e4 | 3705 | { |
8687b63a | 3706 | __be32 *savep; |
1da177e4 LT |
3707 | uint32_t attrlen, |
3708 | bitmap[2] = {0}, | |
3709 | type; | |
bca79478 TM |
3710 | int status; |
3711 | umode_t fmode = 0; | |
99baf625 | 3712 | uint64_t fileid; |
1da177e4 | 3713 | |
f26c7a78 TM |
3714 | status = decode_op_hdr(xdr, OP_GETATTR); |
3715 | if (status < 0) | |
1da177e4 | 3716 | goto xdr_error; |
f26c7a78 TM |
3717 | |
3718 | status = decode_attr_bitmap(xdr, bitmap); | |
3719 | if (status < 0) | |
1da177e4 LT |
3720 | goto xdr_error; |
3721 | ||
f26c7a78 TM |
3722 | status = decode_attr_length(xdr, &attrlen, &savep); |
3723 | if (status < 0) | |
1da177e4 LT |
3724 | goto xdr_error; |
3725 | ||
3726 | ||
f26c7a78 TM |
3727 | status = decode_attr_type(xdr, bitmap, &type); |
3728 | if (status < 0) | |
1da177e4 | 3729 | goto xdr_error; |
409924e4 TM |
3730 | fattr->mode = 0; |
3731 | if (status != 0) { | |
3732 | fattr->mode |= nfs_type2fmt[type]; | |
3733 | fattr->valid |= status; | |
3734 | } | |
1da177e4 | 3735 | |
f26c7a78 TM |
3736 | status = decode_attr_change(xdr, bitmap, &fattr->change_attr); |
3737 | if (status < 0) | |
1da177e4 | 3738 | goto xdr_error; |
409924e4 | 3739 | fattr->valid |= status; |
f26c7a78 TM |
3740 | |
3741 | status = decode_attr_size(xdr, bitmap, &fattr->size); | |
3742 | if (status < 0) | |
1da177e4 | 3743 | goto xdr_error; |
409924e4 | 3744 | fattr->valid |= status; |
f26c7a78 TM |
3745 | |
3746 | status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); | |
3747 | if (status < 0) | |
1da177e4 | 3748 | goto xdr_error; |
409924e4 | 3749 | fattr->valid |= status; |
f26c7a78 TM |
3750 | |
3751 | status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); | |
3752 | if (status < 0) | |
1da177e4 | 3753 | goto xdr_error; |
409924e4 | 3754 | fattr->valid |= status; |
f26c7a78 TM |
3755 | |
3756 | status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, | |
7aaa0b3b | 3757 | struct nfs4_fs_locations, |
f26c7a78 TM |
3758 | fattr)); |
3759 | if (status < 0) | |
683b57b4 | 3760 | goto xdr_error; |
409924e4 | 3761 | fattr->valid |= status; |
f26c7a78 TM |
3762 | |
3763 | status = decode_attr_mode(xdr, bitmap, &fmode); | |
3764 | if (status < 0) | |
1da177e4 | 3765 | goto xdr_error; |
409924e4 TM |
3766 | if (status != 0) { |
3767 | fattr->mode |= fmode; | |
3768 | fattr->valid |= status; | |
3769 | } | |
f26c7a78 TM |
3770 | |
3771 | status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); | |
3772 | if (status < 0) | |
1da177e4 | 3773 | goto xdr_error; |
409924e4 | 3774 | fattr->valid |= status; |
f26c7a78 | 3775 | |
80e52ace TM |
3776 | status = decode_attr_owner(xdr, bitmap, server->nfs_client, |
3777 | &fattr->uid, may_sleep); | |
f26c7a78 | 3778 | if (status < 0) |
1da177e4 | 3779 | goto xdr_error; |
409924e4 | 3780 | fattr->valid |= status; |
f26c7a78 | 3781 | |
80e52ace TM |
3782 | status = decode_attr_group(xdr, bitmap, server->nfs_client, |
3783 | &fattr->gid, may_sleep); | |
f26c7a78 | 3784 | if (status < 0) |
1da177e4 | 3785 | goto xdr_error; |
409924e4 | 3786 | fattr->valid |= status; |
f26c7a78 TM |
3787 | |
3788 | status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); | |
3789 | if (status < 0) | |
1da177e4 | 3790 | goto xdr_error; |
409924e4 | 3791 | fattr->valid |= status; |
f26c7a78 TM |
3792 | |
3793 | status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); | |
3794 | if (status < 0) | |
1da177e4 | 3795 | goto xdr_error; |
409924e4 | 3796 | fattr->valid |= status; |
f26c7a78 TM |
3797 | |
3798 | status = decode_attr_time_access(xdr, bitmap, &fattr->atime); | |
3799 | if (status < 0) | |
1da177e4 | 3800 | goto xdr_error; |
409924e4 | 3801 | fattr->valid |= status; |
f26c7a78 TM |
3802 | |
3803 | status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); | |
3804 | if (status < 0) | |
1da177e4 | 3805 | goto xdr_error; |
409924e4 | 3806 | fattr->valid |= status; |
f26c7a78 TM |
3807 | |
3808 | status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); | |
3809 | if (status < 0) | |
1da177e4 | 3810 | goto xdr_error; |
409924e4 | 3811 | fattr->valid |= status; |
f26c7a78 TM |
3812 | |
3813 | status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); | |
3814 | if (status < 0) | |
99baf625 | 3815 | goto xdr_error; |
409924e4 | 3816 | if (status != 0 && !(fattr->valid & status)) { |
99baf625 | 3817 | fattr->fileid = fileid; |
409924e4 TM |
3818 | fattr->valid |= status; |
3819 | } | |
f26c7a78 TM |
3820 | |
3821 | status = verify_attr_len(xdr, savep, attrlen); | |
1da177e4 | 3822 | xdr_error: |
3110ff80 | 3823 | dprintk("%s: xdr returned %d\n", __func__, -status); |
1da177e4 LT |
3824 | return status; |
3825 | } | |
3826 | ||
3827 | ||
3828 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) | |
3829 | { | |
8687b63a | 3830 | __be32 *savep; |
1da177e4 LT |
3831 | uint32_t attrlen, bitmap[2]; |
3832 | int status; | |
3833 | ||
3834 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3835 | goto xdr_error; | |
3836 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3837 | goto xdr_error; | |
3838 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3839 | goto xdr_error; | |
3840 | ||
3841 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ | |
3842 | ||
3843 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) | |
3844 | goto xdr_error; | |
3845 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) | |
3846 | goto xdr_error; | |
3847 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) | |
3848 | goto xdr_error; | |
3849 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; | |
3850 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) | |
3851 | goto xdr_error; | |
3852 | fsinfo->wtpref = fsinfo->wtmax; | |
3853 | ||
3854 | status = verify_attr_len(xdr, savep, attrlen); | |
3855 | xdr_error: | |
3110ff80 | 3856 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3857 | return status; |
3858 | } | |
3859 | ||
3860 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) | |
3861 | { | |
8687b63a | 3862 | __be32 *p; |
1da177e4 LT |
3863 | uint32_t len; |
3864 | int status; | |
3865 | ||
9936781d TM |
3866 | /* Zero handle first to allow comparisons */ |
3867 | memset(fh, 0, sizeof(*fh)); | |
3868 | ||
1da177e4 LT |
3869 | status = decode_op_hdr(xdr, OP_GETFH); |
3870 | if (status) | |
3871 | return status; | |
1da177e4 | 3872 | |
c0eae66e BH |
3873 | p = xdr_inline_decode(xdr, 4); |
3874 | if (unlikely(!p)) | |
3875 | goto out_overflow; | |
cccddf4f | 3876 | len = be32_to_cpup(p); |
1da177e4 LT |
3877 | if (len > NFS4_FHSIZE) |
3878 | return -EIO; | |
3879 | fh->size = len; | |
c0eae66e BH |
3880 | p = xdr_inline_decode(xdr, len); |
3881 | if (unlikely(!p)) | |
3882 | goto out_overflow; | |
99398d06 | 3883 | memcpy(fh->data, p, len); |
1da177e4 | 3884 | return 0; |
c0eae66e BH |
3885 | out_overflow: |
3886 | print_overflow_msg(__func__, xdr); | |
3887 | return -EIO; | |
1da177e4 LT |
3888 | } |
3889 | ||
3890 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3891 | { | |
3892 | int status; | |
6c0195a4 | 3893 | |
1da177e4 LT |
3894 | status = decode_op_hdr(xdr, OP_LINK); |
3895 | if (status) | |
3896 | return status; | |
3897 | return decode_change_info(xdr, cinfo); | |
3898 | } | |
3899 | ||
3900 | /* | |
3901 | * We create the owner, so we know a proper owner.id length is 4. | |
3902 | */ | |
911d1aaf | 3903 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
1da177e4 | 3904 | { |
911d1aaf | 3905 | uint64_t offset, length, clientid; |
8687b63a | 3906 | __be32 *p; |
911d1aaf | 3907 | uint32_t namelen, type; |
1da177e4 | 3908 | |
c0eae66e BH |
3909 | p = xdr_inline_decode(xdr, 32); |
3910 | if (unlikely(!p)) | |
3911 | goto out_overflow; | |
3ceb4dbb BH |
3912 | p = xdr_decode_hyper(p, &offset); |
3913 | p = xdr_decode_hyper(p, &length); | |
6f723f77 | 3914 | type = be32_to_cpup(p++); |
911d1aaf TM |
3915 | if (fl != NULL) { |
3916 | fl->fl_start = (loff_t)offset; | |
3917 | fl->fl_end = fl->fl_start + (loff_t)length - 1; | |
3918 | if (length == ~(uint64_t)0) | |
3919 | fl->fl_end = OFFSET_MAX; | |
3920 | fl->fl_type = F_WRLCK; | |
3921 | if (type & 1) | |
3922 | fl->fl_type = F_RDLCK; | |
3923 | fl->fl_pid = 0; | |
3924 | } | |
3ceb4dbb | 3925 | p = xdr_decode_hyper(p, &clientid); |
cccddf4f | 3926 | namelen = be32_to_cpup(p); |
c0eae66e BH |
3927 | p = xdr_inline_decode(xdr, namelen); |
3928 | if (likely(p)) | |
3929 | return -NFS4ERR_DENIED; | |
3930 | out_overflow: | |
3931 | print_overflow_msg(__func__, xdr); | |
3932 | return -EIO; | |
1da177e4 LT |
3933 | } |
3934 | ||
911d1aaf | 3935 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
1da177e4 | 3936 | { |
1da177e4 LT |
3937 | int status; |
3938 | ||
3939 | status = decode_op_hdr(xdr, OP_LOCK); | |
c1d51931 TM |
3940 | if (status == -EIO) |
3941 | goto out; | |
1da177e4 | 3942 | if (status == 0) { |
07d30434 BH |
3943 | status = decode_stateid(xdr, &res->stateid); |
3944 | if (unlikely(status)) | |
3945 | goto out; | |
1da177e4 | 3946 | } else if (status == -NFS4ERR_DENIED) |
c1d51931 TM |
3947 | status = decode_lock_denied(xdr, NULL); |
3948 | if (res->open_seqid != NULL) | |
3949 | nfs_increment_open_seqid(status, res->open_seqid); | |
3950 | nfs_increment_lock_seqid(status, res->lock_seqid); | |
3951 | out: | |
1da177e4 LT |
3952 | return status; |
3953 | } | |
3954 | ||
911d1aaf | 3955 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
1da177e4 LT |
3956 | { |
3957 | int status; | |
3958 | status = decode_op_hdr(xdr, OP_LOCKT); | |
3959 | if (status == -NFS4ERR_DENIED) | |
911d1aaf | 3960 | return decode_lock_denied(xdr, res->denied); |
1da177e4 LT |
3961 | return status; |
3962 | } | |
3963 | ||
911d1aaf | 3964 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
1da177e4 | 3965 | { |
1da177e4 LT |
3966 | int status; |
3967 | ||
3968 | status = decode_op_hdr(xdr, OP_LOCKU); | |
c1d51931 TM |
3969 | if (status != -EIO) |
3970 | nfs_increment_lock_seqid(status, res->seqid); | |
07d30434 BH |
3971 | if (status == 0) |
3972 | status = decode_stateid(xdr, &res->stateid); | |
1da177e4 LT |
3973 | return status; |
3974 | } | |
3975 | ||
3976 | static int decode_lookup(struct xdr_stream *xdr) | |
3977 | { | |
3978 | return decode_op_hdr(xdr, OP_LOOKUP); | |
3979 | } | |
3980 | ||
3981 | /* This is too sick! */ | |
3982 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) | |
3983 | { | |
05d564fe | 3984 | __be32 *p; |
1da177e4 LT |
3985 | uint32_t limit_type, nblocks, blocksize; |
3986 | ||
c0eae66e BH |
3987 | p = xdr_inline_decode(xdr, 12); |
3988 | if (unlikely(!p)) | |
3989 | goto out_overflow; | |
6f723f77 | 3990 | limit_type = be32_to_cpup(p++); |
1da177e4 | 3991 | switch (limit_type) { |
05d564fe | 3992 | case 1: |
cccddf4f | 3993 | xdr_decode_hyper(p, maxsize); |
05d564fe AA |
3994 | break; |
3995 | case 2: | |
6f723f77 | 3996 | nblocks = be32_to_cpup(p++); |
cccddf4f | 3997 | blocksize = be32_to_cpup(p); |
05d564fe | 3998 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; |
1da177e4 LT |
3999 | } |
4000 | return 0; | |
c0eae66e BH |
4001 | out_overflow: |
4002 | print_overflow_msg(__func__, xdr); | |
4003 | return -EIO; | |
1da177e4 LT |
4004 | } |
4005 | ||
4006 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) | |
4007 | { | |
05d564fe AA |
4008 | __be32 *p; |
4009 | uint32_t delegation_type; | |
07d30434 | 4010 | int status; |
1da177e4 | 4011 | |
c0eae66e BH |
4012 | p = xdr_inline_decode(xdr, 4); |
4013 | if (unlikely(!p)) | |
4014 | goto out_overflow; | |
cccddf4f | 4015 | delegation_type = be32_to_cpup(p); |
1da177e4 LT |
4016 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { |
4017 | res->delegation_type = 0; | |
4018 | return 0; | |
4019 | } | |
07d30434 BH |
4020 | status = decode_stateid(xdr, &res->delegation); |
4021 | if (unlikely(status)) | |
4022 | return status; | |
c0eae66e BH |
4023 | p = xdr_inline_decode(xdr, 4); |
4024 | if (unlikely(!p)) | |
4025 | goto out_overflow; | |
cccddf4f | 4026 | res->do_recall = be32_to_cpup(p); |
05d564fe | 4027 | |
1da177e4 | 4028 | switch (delegation_type) { |
05d564fe AA |
4029 | case NFS4_OPEN_DELEGATE_READ: |
4030 | res->delegation_type = FMODE_READ; | |
4031 | break; | |
4032 | case NFS4_OPEN_DELEGATE_WRITE: | |
4033 | res->delegation_type = FMODE_WRITE|FMODE_READ; | |
4034 | if (decode_space_limit(xdr, &res->maxsize) < 0) | |
1da177e4 LT |
4035 | return -EIO; |
4036 | } | |
7539bbab | 4037 | return decode_ace(xdr, NULL, res->server->nfs_client); |
c0eae66e BH |
4038 | out_overflow: |
4039 | print_overflow_msg(__func__, xdr); | |
4040 | return -EIO; | |
1da177e4 LT |
4041 | } |
4042 | ||
4043 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) | |
4044 | { | |
05d564fe | 4045 | __be32 *p; |
aa53ed54 | 4046 | uint32_t savewords, bmlen, i; |
05d564fe | 4047 | int status; |
1da177e4 | 4048 | |
05d564fe | 4049 | status = decode_op_hdr(xdr, OP_OPEN); |
c1d51931 TM |
4050 | if (status != -EIO) |
4051 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
4052 | if (!status) |
4053 | status = decode_stateid(xdr, &res->stateid); | |
4054 | if (unlikely(status)) | |
05d564fe | 4055 | return status; |
1da177e4 | 4056 | |
05d564fe | 4057 | decode_change_info(xdr, &res->cinfo); |
1da177e4 | 4058 | |
c0eae66e BH |
4059 | p = xdr_inline_decode(xdr, 8); |
4060 | if (unlikely(!p)) | |
4061 | goto out_overflow; | |
6f723f77 | 4062 | res->rflags = be32_to_cpup(p++); |
cccddf4f | 4063 | bmlen = be32_to_cpup(p); |
05d564fe AA |
4064 | if (bmlen > 10) |
4065 | goto xdr_error; | |
1da177e4 | 4066 | |
c0eae66e BH |
4067 | p = xdr_inline_decode(xdr, bmlen << 2); |
4068 | if (unlikely(!p)) | |
4069 | goto out_overflow; | |
aa53ed54 JL |
4070 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
4071 | for (i = 0; i < savewords; ++i) | |
6f723f77 | 4072 | res->attrset[i] = be32_to_cpup(p++); |
aa53ed54 JL |
4073 | for (; i < NFS4_BITMAP_SIZE; i++) |
4074 | res->attrset[i] = 0; | |
4075 | ||
1da177e4 LT |
4076 | return decode_delegation(xdr, res); |
4077 | xdr_error: | |
3110ff80 | 4078 | dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); |
1da177e4 | 4079 | return -EIO; |
c0eae66e BH |
4080 | out_overflow: |
4081 | print_overflow_msg(__func__, xdr); | |
4082 | return -EIO; | |
1da177e4 LT |
4083 | } |
4084 | ||
4085 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) | |
4086 | { | |
1da177e4 LT |
4087 | int status; |
4088 | ||
05d564fe | 4089 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); |
c1d51931 TM |
4090 | if (status != -EIO) |
4091 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
4092 | if (!status) |
4093 | status = decode_stateid(xdr, &res->stateid); | |
4094 | return status; | |
1da177e4 LT |
4095 | } |
4096 | ||
4097 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) | |
4098 | { | |
1da177e4 LT |
4099 | int status; |
4100 | ||
4101 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); | |
c1d51931 TM |
4102 | if (status != -EIO) |
4103 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
4104 | if (!status) |
4105 | status = decode_stateid(xdr, &res->stateid); | |
4106 | return status; | |
1da177e4 LT |
4107 | } |
4108 | ||
4109 | static int decode_putfh(struct xdr_stream *xdr) | |
4110 | { | |
4111 | return decode_op_hdr(xdr, OP_PUTFH); | |
4112 | } | |
4113 | ||
4114 | static int decode_putrootfh(struct xdr_stream *xdr) | |
4115 | { | |
4116 | return decode_op_hdr(xdr, OP_PUTROOTFH); | |
4117 | } | |
4118 | ||
4119 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) | |
4120 | { | |
4121 | struct kvec *iov = req->rq_rcv_buf.head; | |
8687b63a | 4122 | __be32 *p; |
1da177e4 LT |
4123 | uint32_t count, eof, recvd, hdrlen; |
4124 | int status; | |
4125 | ||
4126 | status = decode_op_hdr(xdr, OP_READ); | |
4127 | if (status) | |
4128 | return status; | |
c0eae66e BH |
4129 | p = xdr_inline_decode(xdr, 8); |
4130 | if (unlikely(!p)) | |
4131 | goto out_overflow; | |
6f723f77 | 4132 | eof = be32_to_cpup(p++); |
cccddf4f | 4133 | count = be32_to_cpup(p); |
1da177e4 LT |
4134 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; |
4135 | recvd = req->rq_rcv_buf.len - hdrlen; | |
4136 | if (count > recvd) { | |
fe82a183 | 4137 | dprintk("NFS: server cheating in read reply: " |
1da177e4 LT |
4138 | "count %u > recvd %u\n", count, recvd); |
4139 | count = recvd; | |
4140 | eof = 0; | |
4141 | } | |
4142 | xdr_read_pages(xdr, count); | |
4143 | res->eof = eof; | |
4144 | res->count = count; | |
4145 | return 0; | |
c0eae66e BH |
4146 | out_overflow: |
4147 | print_overflow_msg(__func__, xdr); | |
4148 | return -EIO; | |
1da177e4 LT |
4149 | } |
4150 | ||
4151 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) | |
4152 | { | |
4153 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
4154 | struct page *page = *rcvbuf->pages; | |
4155 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
4156 | size_t hdrlen; |
4157 | u32 recvd, pglen = rcvbuf->page_len; | |
8687b63a | 4158 | __be32 *end, *entry, *p, *kaddr; |
7bda2cdf | 4159 | unsigned int nr = 0; |
bcecff77 | 4160 | int status; |
1da177e4 LT |
4161 | |
4162 | status = decode_op_hdr(xdr, OP_READDIR); | |
db942bbd BH |
4163 | if (!status) |
4164 | status = decode_verifier(xdr, readdir->verifier.data); | |
4165 | if (unlikely(status)) | |
1da177e4 | 4166 | return status; |
44109241 FI |
4167 | dprintk("%s: verifier = %08x:%08x\n", |
4168 | __func__, | |
eadf4598 TM |
4169 | ((u32 *)readdir->verifier.data)[0], |
4170 | ((u32 *)readdir->verifier.data)[1]); | |
4171 | ||
1da177e4 | 4172 | |
db942bbd | 4173 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; |
1da177e4 LT |
4174 | recvd = rcvbuf->len - hdrlen; |
4175 | if (pglen > recvd) | |
4176 | pglen = recvd; | |
4177 | xdr_read_pages(xdr, pglen); | |
4178 | ||
4179 | BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); | |
8687b63a | 4180 | kaddr = p = kmap_atomic(page, KM_USER0); |
e8896495 | 4181 | end = p + ((pglen + readdir->pgbase) >> 2); |
1da177e4 | 4182 | entry = p; |
7bda2cdf JL |
4183 | |
4184 | /* Make sure the packet actually has a value_follows and EOF entry */ | |
4185 | if ((entry + 1) > end) | |
4186 | goto short_pkt; | |
4187 | ||
4188 | for (; *p++; nr++) { | |
bcecff77 | 4189 | u32 len, attrlen, xlen; |
e8896495 | 4190 | if (end - p < 3) |
1da177e4 | 4191 | goto short_pkt; |
eadf4598 | 4192 | dprintk("cookie = %Lu, ", *((unsigned long long *)p)); |
1da177e4 LT |
4193 | p += 2; /* cookie */ |
4194 | len = ntohl(*p++); /* filename length */ | |
4195 | if (len > NFS4_MAXNAMLEN) { | |
fe82a183 CL |
4196 | dprintk("NFS: giant filename in readdir (len 0x%x)\n", |
4197 | len); | |
1da177e4 LT |
4198 | goto err_unmap; |
4199 | } | |
e8896495 DH |
4200 | xlen = XDR_QUADLEN(len); |
4201 | if (end - p < xlen + 1) | |
1da177e4 | 4202 | goto short_pkt; |
e8896495 DH |
4203 | dprintk("filename = %*s\n", len, (char *)p); |
4204 | p += xlen; | |
1da177e4 | 4205 | len = ntohl(*p++); /* bitmap length */ |
e8896495 | 4206 | if (end - p < len + 1) |
1da177e4 | 4207 | goto short_pkt; |
e8896495 | 4208 | p += len; |
1da177e4 | 4209 | attrlen = XDR_QUADLEN(ntohl(*p++)); |
e8896495 | 4210 | if (end - p < attrlen + 2) |
1da177e4 | 4211 | goto short_pkt; |
e8896495 | 4212 | p += attrlen; /* attributes */ |
1da177e4 LT |
4213 | entry = p; |
4214 | } | |
7bda2cdf JL |
4215 | /* |
4216 | * Apparently some server sends responses that are a valid size, but | |
4217 | * contain no entries, and have value_follows==0 and EOF==0. For | |
4218 | * those, just set the EOF marker. | |
4219 | */ | |
4220 | if (!nr && entry[1] == 0) { | |
4221 | dprintk("NFS: readdir reply truncated!\n"); | |
4222 | entry[1] = 1; | |
4223 | } | |
6c0195a4 | 4224 | out: |
1da177e4 LT |
4225 | kunmap_atomic(kaddr, KM_USER0); |
4226 | return 0; | |
4227 | short_pkt: | |
7bda2cdf JL |
4228 | /* |
4229 | * When we get a short packet there are 2 possibilities. We can | |
4230 | * return an error, or fix up the response to look like a valid | |
4231 | * response and return what we have so far. If there are no | |
4232 | * entries and the packet was short, then return -EIO. If there | |
4233 | * are valid entries in the response, return them and pretend that | |
4234 | * the call was successful, but incomplete. The caller can retry the | |
4235 | * readdir starting at the last cookie. | |
4236 | */ | |
3110ff80 | 4237 | dprintk("%s: short packet at entry %d\n", __func__, nr); |
1da177e4 | 4238 | entry[0] = entry[1] = 0; |
7bda2cdf JL |
4239 | if (nr) |
4240 | goto out; | |
1da177e4 LT |
4241 | err_unmap: |
4242 | kunmap_atomic(kaddr, KM_USER0); | |
4243 | return -errno_NFSERR_IO; | |
4244 | } | |
4245 | ||
4246 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) | |
4247 | { | |
4248 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
4249 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
4250 | size_t hdrlen; |
4251 | u32 len, recvd; | |
8687b63a | 4252 | __be32 *p; |
1da177e4 LT |
4253 | char *kaddr; |
4254 | int status; | |
4255 | ||
4256 | status = decode_op_hdr(xdr, OP_READLINK); | |
4257 | if (status) | |
4258 | return status; | |
4259 | ||
4260 | /* Convert length of symlink */ | |
c0eae66e BH |
4261 | p = xdr_inline_decode(xdr, 4); |
4262 | if (unlikely(!p)) | |
4263 | goto out_overflow; | |
cccddf4f | 4264 | len = be32_to_cpup(p); |
1da177e4 | 4265 | if (len >= rcvbuf->page_len || len <= 0) { |
fe82a183 | 4266 | dprintk("nfs: server returned giant symlink!\n"); |
1da177e4 LT |
4267 | return -ENAMETOOLONG; |
4268 | } | |
4269 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; | |
4270 | recvd = req->rq_rcv_buf.len - hdrlen; | |
4271 | if (recvd < len) { | |
fe82a183 | 4272 | dprintk("NFS: server cheating in readlink reply: " |
1da177e4 LT |
4273 | "count %u > recvd %u\n", len, recvd); |
4274 | return -EIO; | |
4275 | } | |
4276 | xdr_read_pages(xdr, len); | |
4277 | /* | |
4278 | * The XDR encode routine has set things up so that | |
4279 | * the link text will be copied directly into the | |
4280 | * buffer. We just have to do overflow-checking, | |
4281 | * and and null-terminate the text (the VFS expects | |
4282 | * null-termination). | |
4283 | */ | |
4284 | kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); | |
4285 | kaddr[len+rcvbuf->page_base] = '\0'; | |
4286 | kunmap_atomic(kaddr, KM_USER0); | |
4287 | return 0; | |
c0eae66e BH |
4288 | out_overflow: |
4289 | print_overflow_msg(__func__, xdr); | |
4290 | return -EIO; | |
1da177e4 LT |
4291 | } |
4292 | ||
4293 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
4294 | { | |
4295 | int status; | |
4296 | ||
4297 | status = decode_op_hdr(xdr, OP_REMOVE); | |
4298 | if (status) | |
4299 | goto out; | |
4300 | status = decode_change_info(xdr, cinfo); | |
4301 | out: | |
4302 | return status; | |
4303 | } | |
4304 | ||
4305 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, | |
4306 | struct nfs4_change_info *new_cinfo) | |
4307 | { | |
4308 | int status; | |
4309 | ||
4310 | status = decode_op_hdr(xdr, OP_RENAME); | |
4311 | if (status) | |
4312 | goto out; | |
4313 | if ((status = decode_change_info(xdr, old_cinfo))) | |
4314 | goto out; | |
4315 | status = decode_change_info(xdr, new_cinfo); | |
4316 | out: | |
4317 | return status; | |
4318 | } | |
4319 | ||
4320 | static int decode_renew(struct xdr_stream *xdr) | |
4321 | { | |
4322 | return decode_op_hdr(xdr, OP_RENEW); | |
4323 | } | |
4324 | ||
56ae19f3 TM |
4325 | static int |
4326 | decode_restorefh(struct xdr_stream *xdr) | |
4327 | { | |
4328 | return decode_op_hdr(xdr, OP_RESTOREFH); | |
4329 | } | |
4330 | ||
029d105e BF |
4331 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
4332 | size_t *acl_len) | |
4333 | { | |
8687b63a | 4334 | __be32 *savep; |
029d105e BF |
4335 | uint32_t attrlen, |
4336 | bitmap[2] = {0}; | |
4337 | struct kvec *iov = req->rq_rcv_buf.head; | |
4338 | int status; | |
4339 | ||
4340 | *acl_len = 0; | |
4341 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
4342 | goto out; | |
4343 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
4344 | goto out; | |
4345 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
4346 | goto out; | |
4347 | ||
4348 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) | |
4349 | return -EIO; | |
4350 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { | |
bcecff77 CL |
4351 | size_t hdrlen; |
4352 | u32 recvd; | |
029d105e BF |
4353 | |
4354 | /* We ignore &savep and don't do consistency checks on | |
4355 | * the attr length. Let userspace figure it out.... */ | |
4356 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; | |
4357 | recvd = req->rq_rcv_buf.len - hdrlen; | |
4358 | if (attrlen > recvd) { | |
fe82a183 | 4359 | dprintk("NFS: server cheating in getattr" |
029d105e BF |
4360 | " acl reply: attrlen %u > recvd %u\n", |
4361 | attrlen, recvd); | |
4362 | return -EINVAL; | |
4363 | } | |
c04871e6 | 4364 | xdr_read_pages(xdr, attrlen); |
029d105e | 4365 | *acl_len = attrlen; |
8c233cf9 BF |
4366 | } else |
4367 | status = -EOPNOTSUPP; | |
029d105e BF |
4368 | |
4369 | out: | |
4370 | return status; | |
4371 | } | |
4372 | ||
1da177e4 LT |
4373 | static int |
4374 | decode_savefh(struct xdr_stream *xdr) | |
4375 | { | |
4376 | return decode_op_hdr(xdr, OP_SAVEFH); | |
4377 | } | |
4378 | ||
9e9ecc03 | 4379 | static int decode_setattr(struct xdr_stream *xdr) |
1da177e4 | 4380 | { |
8687b63a | 4381 | __be32 *p; |
1da177e4 LT |
4382 | uint32_t bmlen; |
4383 | int status; | |
4384 | ||
1da177e4 LT |
4385 | status = decode_op_hdr(xdr, OP_SETATTR); |
4386 | if (status) | |
4387 | return status; | |
c0eae66e BH |
4388 | p = xdr_inline_decode(xdr, 4); |
4389 | if (unlikely(!p)) | |
4390 | goto out_overflow; | |
cccddf4f | 4391 | bmlen = be32_to_cpup(p); |
c0eae66e BH |
4392 | p = xdr_inline_decode(xdr, bmlen << 2); |
4393 | if (likely(p)) | |
4394 | return 0; | |
4395 | out_overflow: | |
4396 | print_overflow_msg(__func__, xdr); | |
4397 | return -EIO; | |
1da177e4 LT |
4398 | } |
4399 | ||
bb8b27e5 | 4400 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) |
1da177e4 | 4401 | { |
8687b63a | 4402 | __be32 *p; |
1da177e4 LT |
4403 | uint32_t opnum; |
4404 | int32_t nfserr; | |
4405 | ||
c0eae66e BH |
4406 | p = xdr_inline_decode(xdr, 8); |
4407 | if (unlikely(!p)) | |
4408 | goto out_overflow; | |
6f723f77 | 4409 | opnum = be32_to_cpup(p++); |
1da177e4 | 4410 | if (opnum != OP_SETCLIENTID) { |
fe82a183 | 4411 | dprintk("nfs: decode_setclientid: Server returned operation" |
6c0195a4 | 4412 | " %d\n", opnum); |
1da177e4 LT |
4413 | return -EIO; |
4414 | } | |
cccddf4f | 4415 | nfserr = be32_to_cpup(p); |
1da177e4 | 4416 | if (nfserr == NFS_OK) { |
c0eae66e BH |
4417 | p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); |
4418 | if (unlikely(!p)) | |
4419 | goto out_overflow; | |
bb8b27e5 TM |
4420 | p = xdr_decode_hyper(p, &res->clientid); |
4421 | memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); | |
1da177e4 LT |
4422 | } else if (nfserr == NFSERR_CLID_INUSE) { |
4423 | uint32_t len; | |
4424 | ||
4425 | /* skip netid string */ | |
c0eae66e BH |
4426 | p = xdr_inline_decode(xdr, 4); |
4427 | if (unlikely(!p)) | |
4428 | goto out_overflow; | |
cccddf4f | 4429 | len = be32_to_cpup(p); |
c0eae66e BH |
4430 | p = xdr_inline_decode(xdr, len); |
4431 | if (unlikely(!p)) | |
4432 | goto out_overflow; | |
1da177e4 LT |
4433 | |
4434 | /* skip uaddr string */ | |
c0eae66e BH |
4435 | p = xdr_inline_decode(xdr, 4); |
4436 | if (unlikely(!p)) | |
4437 | goto out_overflow; | |
cccddf4f | 4438 | len = be32_to_cpup(p); |
c0eae66e BH |
4439 | p = xdr_inline_decode(xdr, len); |
4440 | if (unlikely(!p)) | |
4441 | goto out_overflow; | |
1da177e4 LT |
4442 | return -NFSERR_CLID_INUSE; |
4443 | } else | |
856dff3d | 4444 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
4445 | |
4446 | return 0; | |
c0eae66e BH |
4447 | out_overflow: |
4448 | print_overflow_msg(__func__, xdr); | |
4449 | return -EIO; | |
1da177e4 LT |
4450 | } |
4451 | ||
4452 | static int decode_setclientid_confirm(struct xdr_stream *xdr) | |
4453 | { | |
4454 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); | |
4455 | } | |
4456 | ||
4457 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) | |
4458 | { | |
8687b63a | 4459 | __be32 *p; |
1da177e4 LT |
4460 | int status; |
4461 | ||
4462 | status = decode_op_hdr(xdr, OP_WRITE); | |
4463 | if (status) | |
4464 | return status; | |
4465 | ||
c0eae66e BH |
4466 | p = xdr_inline_decode(xdr, 16); |
4467 | if (unlikely(!p)) | |
4468 | goto out_overflow; | |
6f723f77 BH |
4469 | res->count = be32_to_cpup(p++); |
4470 | res->verf->committed = be32_to_cpup(p++); | |
99398d06 | 4471 | memcpy(res->verf->verifier, p, 8); |
1da177e4 | 4472 | return 0; |
c0eae66e BH |
4473 | out_overflow: |
4474 | print_overflow_msg(__func__, xdr); | |
4475 | return -EIO; | |
1da177e4 LT |
4476 | } |
4477 | ||
4478 | static int decode_delegreturn(struct xdr_stream *xdr) | |
4479 | { | |
4480 | return decode_op_hdr(xdr, OP_DELEGRETURN); | |
4481 | } | |
4482 | ||
99fe60d0 BH |
4483 | #if defined(CONFIG_NFS_V4_1) |
4484 | static int decode_exchange_id(struct xdr_stream *xdr, | |
4485 | struct nfs41_exchange_id_res *res) | |
4486 | { | |
4487 | __be32 *p; | |
4488 | uint32_t dummy; | |
2460ba57 | 4489 | char *dummy_str; |
99fe60d0 BH |
4490 | int status; |
4491 | struct nfs_client *clp = res->client; | |
4492 | ||
4493 | status = decode_op_hdr(xdr, OP_EXCHANGE_ID); | |
4494 | if (status) | |
4495 | return status; | |
4496 | ||
c0eae66e BH |
4497 | p = xdr_inline_decode(xdr, 8); |
4498 | if (unlikely(!p)) | |
4499 | goto out_overflow; | |
cccddf4f | 4500 | xdr_decode_hyper(p, &clp->cl_ex_clid); |
c0eae66e BH |
4501 | p = xdr_inline_decode(xdr, 12); |
4502 | if (unlikely(!p)) | |
4503 | goto out_overflow; | |
6f723f77 BH |
4504 | clp->cl_seqid = be32_to_cpup(p++); |
4505 | clp->cl_exchange_flags = be32_to_cpup(p++); | |
99fe60d0 BH |
4506 | |
4507 | /* We ask for SP4_NONE */ | |
cccddf4f | 4508 | dummy = be32_to_cpup(p); |
99fe60d0 BH |
4509 | if (dummy != SP4_NONE) |
4510 | return -EIO; | |
4511 | ||
4512 | /* Throw away minor_id */ | |
c0eae66e BH |
4513 | p = xdr_inline_decode(xdr, 8); |
4514 | if (unlikely(!p)) | |
4515 | goto out_overflow; | |
99fe60d0 BH |
4516 | |
4517 | /* Throw away Major id */ | |
2460ba57 BH |
4518 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); |
4519 | if (unlikely(status)) | |
4520 | return status; | |
99fe60d0 BH |
4521 | |
4522 | /* Throw away server_scope */ | |
2460ba57 BH |
4523 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); |
4524 | if (unlikely(status)) | |
4525 | return status; | |
99fe60d0 BH |
4526 | |
4527 | /* Throw away Implementation id array */ | |
2460ba57 BH |
4528 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); |
4529 | if (unlikely(status)) | |
4530 | return status; | |
99fe60d0 BH |
4531 | |
4532 | return 0; | |
c0eae66e BH |
4533 | out_overflow: |
4534 | print_overflow_msg(__func__, xdr); | |
4535 | return -EIO; | |
99fe60d0 | 4536 | } |
fc931582 AA |
4537 | |
4538 | static int decode_chan_attrs(struct xdr_stream *xdr, | |
4539 | struct nfs4_channel_attrs *attrs) | |
4540 | { | |
4541 | __be32 *p; | |
4542 | u32 nr_attrs; | |
4543 | ||
c0eae66e BH |
4544 | p = xdr_inline_decode(xdr, 28); |
4545 | if (unlikely(!p)) | |
4546 | goto out_overflow; | |
6f723f77 BH |
4547 | attrs->headerpadsz = be32_to_cpup(p++); |
4548 | attrs->max_rqst_sz = be32_to_cpup(p++); | |
4549 | attrs->max_resp_sz = be32_to_cpup(p++); | |
4550 | attrs->max_resp_sz_cached = be32_to_cpup(p++); | |
4551 | attrs->max_ops = be32_to_cpup(p++); | |
4552 | attrs->max_reqs = be32_to_cpup(p++); | |
cccddf4f | 4553 | nr_attrs = be32_to_cpup(p); |
fc931582 AA |
4554 | if (unlikely(nr_attrs > 1)) { |
4555 | printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", | |
4556 | __func__, nr_attrs); | |
4557 | return -EINVAL; | |
4558 | } | |
c0eae66e BH |
4559 | if (nr_attrs == 1) { |
4560 | p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ | |
4561 | if (unlikely(!p)) | |
4562 | goto out_overflow; | |
4563 | } | |
fc931582 | 4564 | return 0; |
c0eae66e BH |
4565 | out_overflow: |
4566 | print_overflow_msg(__func__, xdr); | |
4567 | return -EIO; | |
fc931582 AA |
4568 | } |
4569 | ||
e78291e4 BH |
4570 | static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) |
4571 | { | |
4572 | return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); | |
fc931582 AA |
4573 | } |
4574 | ||
4575 | static int decode_create_session(struct xdr_stream *xdr, | |
4576 | struct nfs41_create_session_res *res) | |
4577 | { | |
4578 | __be32 *p; | |
4579 | int status; | |
4580 | struct nfs_client *clp = res->client; | |
4581 | struct nfs4_session *session = clp->cl_session; | |
4582 | ||
4583 | status = decode_op_hdr(xdr, OP_CREATE_SESSION); | |
e78291e4 BH |
4584 | if (!status) |
4585 | status = decode_sessionid(xdr, &session->sess_id); | |
4586 | if (unlikely(status)) | |
fc931582 AA |
4587 | return status; |
4588 | ||
fc931582 | 4589 | /* seqid, flags */ |
c0eae66e BH |
4590 | p = xdr_inline_decode(xdr, 8); |
4591 | if (unlikely(!p)) | |
4592 | goto out_overflow; | |
6f723f77 | 4593 | clp->cl_seqid = be32_to_cpup(p++); |
cccddf4f | 4594 | session->flags = be32_to_cpup(p); |
fc931582 AA |
4595 | |
4596 | /* Channel attributes */ | |
4597 | status = decode_chan_attrs(xdr, &session->fc_attrs); | |
4598 | if (!status) | |
4599 | status = decode_chan_attrs(xdr, &session->bc_attrs); | |
4600 | return status; | |
c0eae66e BH |
4601 | out_overflow: |
4602 | print_overflow_msg(__func__, xdr); | |
4603 | return -EIO; | |
fc931582 | 4604 | } |
0f3e66c6 AA |
4605 | |
4606 | static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) | |
4607 | { | |
4608 | return decode_op_hdr(xdr, OP_DESTROY_SESSION); | |
4609 | } | |
18019753 RL |
4610 | |
4611 | static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) | |
4612 | { | |
4613 | return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); | |
4614 | } | |
99fe60d0 BH |
4615 | #endif /* CONFIG_NFS_V4_1 */ |
4616 | ||
9b7b9fcc AA |
4617 | static int decode_sequence(struct xdr_stream *xdr, |
4618 | struct nfs4_sequence_res *res, | |
4619 | struct rpc_rqst *rqstp) | |
4620 | { | |
4621 | #if defined(CONFIG_NFS_V4_1) | |
fc01cea9 AA |
4622 | struct nfs4_slot *slot; |
4623 | struct nfs4_sessionid id; | |
4624 | u32 dummy; | |
4625 | int status; | |
4626 | __be32 *p; | |
4627 | ||
9b7b9fcc AA |
4628 | if (!res->sr_session) |
4629 | return 0; | |
4630 | ||
fc01cea9 | 4631 | status = decode_op_hdr(xdr, OP_SEQUENCE); |
e78291e4 BH |
4632 | if (!status) |
4633 | status = decode_sessionid(xdr, &id); | |
4634 | if (unlikely(status)) | |
fc01cea9 | 4635 | goto out_err; |
9b7b9fcc | 4636 | |
fc01cea9 AA |
4637 | /* |
4638 | * If the server returns different values for sessionID, slotID or | |
4639 | * sequence number, the server is looney tunes. | |
4640 | */ | |
fdcb4577 | 4641 | status = -EREMOTEIO; |
fc01cea9 | 4642 | |
fc01cea9 AA |
4643 | if (memcmp(id.data, res->sr_session->sess_id.data, |
4644 | NFS4_MAX_SESSIONID_LEN)) { | |
4645 | dprintk("%s Invalid session id\n", __func__); | |
4646 | goto out_err; | |
4647 | } | |
e78291e4 | 4648 | |
c0eae66e BH |
4649 | p = xdr_inline_decode(xdr, 20); |
4650 | if (unlikely(!p)) | |
4651 | goto out_overflow; | |
e78291e4 | 4652 | |
fc01cea9 | 4653 | /* seqid */ |
e78291e4 | 4654 | slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; |
6f723f77 | 4655 | dummy = be32_to_cpup(p++); |
fc01cea9 AA |
4656 | if (dummy != slot->seq_nr) { |
4657 | dprintk("%s Invalid sequence number\n", __func__); | |
4658 | goto out_err; | |
4659 | } | |
4660 | /* slot id */ | |
6f723f77 | 4661 | dummy = be32_to_cpup(p++); |
fc01cea9 AA |
4662 | if (dummy != res->sr_slotid) { |
4663 | dprintk("%s Invalid slot id\n", __func__); | |
4664 | goto out_err; | |
4665 | } | |
4666 | /* highest slot id - currently not processed */ | |
6f723f77 | 4667 | dummy = be32_to_cpup(p++); |
fc01cea9 | 4668 | /* target highest slot id - currently not processed */ |
6f723f77 | 4669 | dummy = be32_to_cpup(p++); |
0629e370 AB |
4670 | /* result flags */ |
4671 | res->sr_status_flags = be32_to_cpup(p); | |
fc01cea9 AA |
4672 | status = 0; |
4673 | out_err: | |
4674 | res->sr_status = status; | |
4675 | return status; | |
c0eae66e BH |
4676 | out_overflow: |
4677 | print_overflow_msg(__func__, xdr); | |
4678 | status = -EIO; | |
4679 | goto out_err; | |
fc01cea9 | 4680 | #else /* CONFIG_NFS_V4_1 */ |
9b7b9fcc | 4681 | return 0; |
fc01cea9 | 4682 | #endif /* CONFIG_NFS_V4_1 */ |
9b7b9fcc AA |
4683 | } |
4684 | ||
49c2559e BH |
4685 | /* |
4686 | * END OF "GENERIC" DECODE ROUTINES. | |
4687 | */ | |
4688 | ||
1da177e4 LT |
4689 | /* |
4690 | * Decode OPEN_DOWNGRADE response | |
4691 | */ | |
8687b63a | 4692 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4693 | { |
05d564fe AA |
4694 | struct xdr_stream xdr; |
4695 | struct compound_hdr hdr; | |
4696 | int status; | |
4697 | ||
4698 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4699 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4700 | if (status) |
4701 | goto out; | |
4702 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4703 | if (status) |
4704 | goto out; | |
4705 | status = decode_putfh(&xdr); | |
4706 | if (status) | |
4707 | goto out; | |
4708 | status = decode_open_downgrade(&xdr, res); | |
516a6af6 TM |
4709 | if (status != 0) |
4710 | goto out; | |
80e52ace TM |
4711 | decode_getfattr(&xdr, res->fattr, res->server, |
4712 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 | 4713 | out: |
05d564fe | 4714 | return status; |
1da177e4 LT |
4715 | } |
4716 | ||
1da177e4 LT |
4717 | /* |
4718 | * Decode ACCESS response | |
4719 | */ | |
8687b63a | 4720 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) |
1da177e4 LT |
4721 | { |
4722 | struct xdr_stream xdr; | |
4723 | struct compound_hdr hdr; | |
4724 | int status; | |
6c0195a4 | 4725 | |
1da177e4 | 4726 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4727 | status = decode_compound_hdr(&xdr, &hdr); |
4728 | if (status) | |
4729 | goto out; | |
4730 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4731 | if (status) | |
1da177e4 | 4732 | goto out; |
76b32999 TM |
4733 | status = decode_putfh(&xdr); |
4734 | if (status != 0) | |
4735 | goto out; | |
4736 | status = decode_access(&xdr, res); | |
4737 | if (status != 0) | |
4738 | goto out; | |
80e52ace TM |
4739 | decode_getfattr(&xdr, res->fattr, res->server, |
4740 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4741 | out: |
4742 | return status; | |
4743 | } | |
4744 | ||
4745 | /* | |
4746 | * Decode LOOKUP response | |
4747 | */ | |
8687b63a | 4748 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
4749 | { |
4750 | struct xdr_stream xdr; | |
4751 | struct compound_hdr hdr; | |
4752 | int status; | |
6c0195a4 | 4753 | |
1da177e4 | 4754 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4755 | status = decode_compound_hdr(&xdr, &hdr); |
4756 | if (status) | |
4757 | goto out; | |
4758 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4759 | if (status) | |
1da177e4 LT |
4760 | goto out; |
4761 | if ((status = decode_putfh(&xdr)) != 0) | |
4762 | goto out; | |
4763 | if ((status = decode_lookup(&xdr)) != 0) | |
4764 | goto out; | |
4765 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
4766 | goto out; | |
80e52ace TM |
4767 | status = decode_getfattr(&xdr, res->fattr, res->server |
4768 | ,!RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4769 | out: |
4770 | return status; | |
4771 | } | |
4772 | ||
4773 | /* | |
4774 | * Decode LOOKUP_ROOT response | |
4775 | */ | |
8687b63a | 4776 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
4777 | { |
4778 | struct xdr_stream xdr; | |
4779 | struct compound_hdr hdr; | |
4780 | int status; | |
6c0195a4 | 4781 | |
1da177e4 | 4782 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4783 | status = decode_compound_hdr(&xdr, &hdr); |
4784 | if (status) | |
4785 | goto out; | |
4786 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4787 | if (status) | |
1da177e4 LT |
4788 | goto out; |
4789 | if ((status = decode_putrootfh(&xdr)) != 0) | |
4790 | goto out; | |
4791 | if ((status = decode_getfh(&xdr, res->fh)) == 0) | |
80e52ace TM |
4792 | status = decode_getfattr(&xdr, res->fattr, res->server, |
4793 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4794 | out: |
4795 | return status; | |
4796 | } | |
4797 | ||
4798 | /* | |
4799 | * Decode REMOVE response | |
4800 | */ | |
4fdc17b2 | 4801 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) |
1da177e4 LT |
4802 | { |
4803 | struct xdr_stream xdr; | |
4804 | struct compound_hdr hdr; | |
4805 | int status; | |
6c0195a4 | 4806 | |
1da177e4 | 4807 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4808 | status = decode_compound_hdr(&xdr, &hdr); |
4809 | if (status) | |
4810 | goto out; | |
4811 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4812 | if (status) | |
1da177e4 | 4813 | goto out; |
16e42959 TM |
4814 | if ((status = decode_putfh(&xdr)) != 0) |
4815 | goto out; | |
4816 | if ((status = decode_remove(&xdr, &res->cinfo)) != 0) | |
4817 | goto out; | |
d346890b | 4818 | decode_getfattr(&xdr, res->dir_attr, res->server, |
80e52ace | 4819 | !RPC_IS_ASYNC(rqstp->rq_task)); |
1da177e4 LT |
4820 | out: |
4821 | return status; | |
4822 | } | |
4823 | ||
4824 | /* | |
4825 | * Decode RENAME response | |
4826 | */ | |
8687b63a | 4827 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) |
1da177e4 LT |
4828 | { |
4829 | struct xdr_stream xdr; | |
4830 | struct compound_hdr hdr; | |
4831 | int status; | |
6c0195a4 | 4832 | |
1da177e4 | 4833 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4834 | status = decode_compound_hdr(&xdr, &hdr); |
4835 | if (status) | |
4836 | goto out; | |
4837 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4838 | if (status) | |
1da177e4 LT |
4839 | goto out; |
4840 | if ((status = decode_putfh(&xdr)) != 0) | |
4841 | goto out; | |
4842 | if ((status = decode_savefh(&xdr)) != 0) | |
4843 | goto out; | |
4844 | if ((status = decode_putfh(&xdr)) != 0) | |
4845 | goto out; | |
6caf2c82 TM |
4846 | if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) |
4847 | goto out; | |
4848 | /* Current FH is target directory */ | |
80e52ace TM |
4849 | if (decode_getfattr(&xdr, res->new_fattr, res->server, |
4850 | !RPC_IS_ASYNC(rqstp->rq_task)) != 0) | |
6caf2c82 TM |
4851 | goto out; |
4852 | if ((status = decode_restorefh(&xdr)) != 0) | |
4853 | goto out; | |
80e52ace TM |
4854 | decode_getfattr(&xdr, res->old_fattr, res->server, |
4855 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4856 | out: |
4857 | return status; | |
4858 | } | |
4859 | ||
4860 | /* | |
4861 | * Decode LINK response | |
4862 | */ | |
8687b63a | 4863 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) |
1da177e4 LT |
4864 | { |
4865 | struct xdr_stream xdr; | |
4866 | struct compound_hdr hdr; | |
4867 | int status; | |
6c0195a4 | 4868 | |
1da177e4 | 4869 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4870 | status = decode_compound_hdr(&xdr, &hdr); |
4871 | if (status) | |
4872 | goto out; | |
4873 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4874 | if (status) | |
1da177e4 LT |
4875 | goto out; |
4876 | if ((status = decode_putfh(&xdr)) != 0) | |
4877 | goto out; | |
4878 | if ((status = decode_savefh(&xdr)) != 0) | |
4879 | goto out; | |
4880 | if ((status = decode_putfh(&xdr)) != 0) | |
4881 | goto out; | |
91ba2eee TM |
4882 | if ((status = decode_link(&xdr, &res->cinfo)) != 0) |
4883 | goto out; | |
4884 | /* | |
4885 | * Note order: OP_LINK leaves the directory as the current | |
4886 | * filehandle. | |
4887 | */ | |
80e52ace TM |
4888 | if (decode_getfattr(&xdr, res->dir_attr, res->server, |
4889 | !RPC_IS_ASYNC(rqstp->rq_task)) != 0) | |
91ba2eee TM |
4890 | goto out; |
4891 | if ((status = decode_restorefh(&xdr)) != 0) | |
4892 | goto out; | |
80e52ace TM |
4893 | decode_getfattr(&xdr, res->fattr, res->server, |
4894 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4895 | out: |
4896 | return status; | |
4897 | } | |
4898 | ||
4899 | /* | |
4900 | * Decode CREATE response | |
4901 | */ | |
8687b63a | 4902 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4903 | { |
4904 | struct xdr_stream xdr; | |
4905 | struct compound_hdr hdr; | |
4906 | int status; | |
6c0195a4 | 4907 | |
1da177e4 | 4908 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4909 | status = decode_compound_hdr(&xdr, &hdr); |
4910 | if (status) | |
4911 | goto out; | |
4912 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4913 | if (status) | |
1da177e4 LT |
4914 | goto out; |
4915 | if ((status = decode_putfh(&xdr)) != 0) | |
4916 | goto out; | |
56ae19f3 TM |
4917 | if ((status = decode_savefh(&xdr)) != 0) |
4918 | goto out; | |
1da177e4 LT |
4919 | if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) |
4920 | goto out; | |
4921 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
4922 | goto out; | |
80e52ace TM |
4923 | if (decode_getfattr(&xdr, res->fattr, res->server, |
4924 | !RPC_IS_ASYNC(rqstp->rq_task)) != 0) | |
56ae19f3 TM |
4925 | goto out; |
4926 | if ((status = decode_restorefh(&xdr)) != 0) | |
4927 | goto out; | |
80e52ace TM |
4928 | decode_getfattr(&xdr, res->dir_fattr, res->server, |
4929 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4930 | out: |
4931 | return status; | |
4932 | } | |
4933 | ||
4934 | /* | |
4935 | * Decode SYMLINK response | |
4936 | */ | |
8687b63a | 4937 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4938 | { |
4939 | return nfs4_xdr_dec_create(rqstp, p, res); | |
4940 | } | |
4941 | ||
4942 | /* | |
4943 | * Decode GETATTR response | |
4944 | */ | |
8687b63a | 4945 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) |
1da177e4 LT |
4946 | { |
4947 | struct xdr_stream xdr; | |
4948 | struct compound_hdr hdr; | |
4949 | int status; | |
6c0195a4 | 4950 | |
1da177e4 LT |
4951 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
4952 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4953 | if (status) |
4954 | goto out; | |
4955 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4956 | if (status) |
4957 | goto out; | |
4958 | status = decode_putfh(&xdr); | |
4959 | if (status) | |
4960 | goto out; | |
80e52ace TM |
4961 | status = decode_getfattr(&xdr, res->fattr, res->server, |
4962 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4963 | out: |
4964 | return status; | |
1da177e4 LT |
4965 | } |
4966 | ||
23ec6965 BF |
4967 | /* |
4968 | * Encode an SETACL request | |
4969 | */ | |
4970 | static int | |
8687b63a | 4971 | nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) |
23ec6965 | 4972 | { |
05d564fe AA |
4973 | struct xdr_stream xdr; |
4974 | struct compound_hdr hdr = { | |
66cc0429 | 4975 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe AA |
4976 | }; |
4977 | int status; | |
4978 | ||
4979 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 4980 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 4981 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 | 4982 | encode_putfh(&xdr, args->fh, &hdr); |
d017931c | 4983 | status = encode_setacl(&xdr, args, &hdr); |
d017931c | 4984 | encode_nops(&hdr); |
05d564fe | 4985 | return status; |
23ec6965 | 4986 | } |
05d564fe | 4987 | |
23ec6965 BF |
4988 | /* |
4989 | * Decode SETACL response | |
4990 | */ | |
4991 | static int | |
73c403a9 BH |
4992 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, |
4993 | struct nfs_setaclres *res) | |
23ec6965 BF |
4994 | { |
4995 | struct xdr_stream xdr; | |
4996 | struct compound_hdr hdr; | |
4997 | int status; | |
4998 | ||
4999 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5000 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5001 | if (status) |
5002 | goto out; | |
5003 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
23ec6965 BF |
5004 | if (status) |
5005 | goto out; | |
5006 | status = decode_putfh(&xdr); | |
5007 | if (status) | |
5008 | goto out; | |
9e9ecc03 | 5009 | status = decode_setattr(&xdr); |
23ec6965 BF |
5010 | out: |
5011 | return status; | |
5012 | } | |
1da177e4 | 5013 | |
029d105e BF |
5014 | /* |
5015 | * Decode GETACL response | |
5016 | */ | |
5017 | static int | |
663c79b3 BH |
5018 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, |
5019 | struct nfs_getaclres *res) | |
029d105e BF |
5020 | { |
5021 | struct xdr_stream xdr; | |
5022 | struct compound_hdr hdr; | |
5023 | int status; | |
5024 | ||
5025 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5026 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5027 | if (status) |
5028 | goto out; | |
5029 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
029d105e BF |
5030 | if (status) |
5031 | goto out; | |
5032 | status = decode_putfh(&xdr); | |
5033 | if (status) | |
5034 | goto out; | |
663c79b3 | 5035 | status = decode_getacl(&xdr, rqstp, &res->acl_len); |
029d105e BF |
5036 | |
5037 | out: | |
5038 | return status; | |
5039 | } | |
5040 | ||
1da177e4 LT |
5041 | /* |
5042 | * Decode CLOSE response | |
5043 | */ | |
8687b63a | 5044 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 5045 | { |
05d564fe AA |
5046 | struct xdr_stream xdr; |
5047 | struct compound_hdr hdr; | |
5048 | int status; | |
5049 | ||
5050 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5051 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5052 | if (status) |
5053 | goto out; | |
5054 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
5055 | if (status) |
5056 | goto out; | |
5057 | status = decode_putfh(&xdr); | |
5058 | if (status) | |
5059 | goto out; | |
5060 | status = decode_close(&xdr, res); | |
516a6af6 TM |
5061 | if (status != 0) |
5062 | goto out; | |
5063 | /* | |
5064 | * Note: Server may do delete on close for this file | |
5065 | * in which case the getattr call will fail with | |
5066 | * an ESTALE error. Shouldn't be a problem, | |
5067 | * though, since fattr->valid will remain unset. | |
5068 | */ | |
80e52ace TM |
5069 | decode_getfattr(&xdr, res->fattr, res->server, |
5070 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 | 5071 | out: |
05d564fe | 5072 | return status; |
1da177e4 LT |
5073 | } |
5074 | ||
5075 | /* | |
5076 | * Decode OPEN response | |
5077 | */ | |
8687b63a | 5078 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 5079 | { |
05d564fe AA |
5080 | struct xdr_stream xdr; |
5081 | struct compound_hdr hdr; | |
5082 | int status; | |
5083 | ||
5084 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5085 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5086 | if (status) |
5087 | goto out; | |
5088 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
5089 | if (status) |
5090 | goto out; | |
5091 | status = decode_putfh(&xdr); | |
5092 | if (status) | |
5093 | goto out; | |
5094 | status = decode_savefh(&xdr); | |
5095 | if (status) | |
5096 | goto out; | |
5097 | status = decode_open(&xdr, res); | |
56ae19f3 TM |
5098 | if (status) |
5099 | goto out; | |
9936781d | 5100 | if (decode_getfh(&xdr, &res->fh) != 0) |
1da177e4 | 5101 | goto out; |
80e52ace TM |
5102 | if (decode_getfattr(&xdr, res->f_attr, res->server, |
5103 | !RPC_IS_ASYNC(rqstp->rq_task)) != 0) | |
56ae19f3 | 5104 | goto out; |
365c8f58 | 5105 | if (decode_restorefh(&xdr) != 0) |
56ae19f3 | 5106 | goto out; |
80e52ace TM |
5107 | decode_getfattr(&xdr, res->dir_attr, res->server, |
5108 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 | 5109 | out: |
05d564fe | 5110 | return status; |
1da177e4 LT |
5111 | } |
5112 | ||
5113 | /* | |
5114 | * Decode OPEN_CONFIRM response | |
5115 | */ | |
8687b63a | 5116 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) |
1da177e4 | 5117 | { |
05d564fe AA |
5118 | struct xdr_stream xdr; |
5119 | struct compound_hdr hdr; | |
5120 | int status; | |
5121 | ||
5122 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5123 | status = decode_compound_hdr(&xdr, &hdr); | |
5124 | if (status) | |
5125 | goto out; | |
5126 | status = decode_putfh(&xdr); | |
5127 | if (status) | |
5128 | goto out; | |
5129 | status = decode_open_confirm(&xdr, res); | |
1da177e4 | 5130 | out: |
05d564fe | 5131 | return status; |
1da177e4 LT |
5132 | } |
5133 | ||
5134 | /* | |
5135 | * Decode OPEN response | |
5136 | */ | |
8687b63a | 5137 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 5138 | { |
05d564fe AA |
5139 | struct xdr_stream xdr; |
5140 | struct compound_hdr hdr; | |
5141 | int status; | |
5142 | ||
5143 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5144 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5145 | if (status) |
5146 | goto out; | |
5147 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
5148 | if (status) |
5149 | goto out; | |
5150 | status = decode_putfh(&xdr); | |
5151 | if (status) | |
5152 | goto out; | |
5153 | status = decode_open(&xdr, res); | |
5154 | if (status) | |
5155 | goto out; | |
80e52ace TM |
5156 | decode_getfattr(&xdr, res->f_attr, res->server, |
5157 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 | 5158 | out: |
05d564fe | 5159 | return status; |
1da177e4 LT |
5160 | } |
5161 | ||
5162 | /* | |
5163 | * Decode SETATTR response | |
5164 | */ | |
8687b63a | 5165 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) |
1da177e4 | 5166 | { |
05d564fe AA |
5167 | struct xdr_stream xdr; |
5168 | struct compound_hdr hdr; | |
5169 | int status; | |
5170 | ||
5171 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5172 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5173 | if (status) |
5174 | goto out; | |
5175 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
5176 | if (status) |
5177 | goto out; | |
5178 | status = decode_putfh(&xdr); | |
5179 | if (status) | |
5180 | goto out; | |
9e9ecc03 | 5181 | status = decode_setattr(&xdr); |
05d564fe AA |
5182 | if (status) |
5183 | goto out; | |
80e52ace TM |
5184 | decode_getfattr(&xdr, res->fattr, res->server, |
5185 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 | 5186 | out: |
05d564fe | 5187 | return status; |
1da177e4 LT |
5188 | } |
5189 | ||
5190 | /* | |
5191 | * Decode LOCK response | |
5192 | */ | |
8687b63a | 5193 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) |
1da177e4 LT |
5194 | { |
5195 | struct xdr_stream xdr; | |
5196 | struct compound_hdr hdr; | |
5197 | int status; | |
5198 | ||
5199 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5200 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5201 | if (status) |
5202 | goto out; | |
5203 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5204 | if (status) |
5205 | goto out; | |
5206 | status = decode_putfh(&xdr); | |
5207 | if (status) | |
5208 | goto out; | |
5209 | status = decode_lock(&xdr, res); | |
5210 | out: | |
5211 | return status; | |
5212 | } | |
5213 | ||
5214 | /* | |
5215 | * Decode LOCKT response | |
5216 | */ | |
8687b63a | 5217 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) |
1da177e4 LT |
5218 | { |
5219 | struct xdr_stream xdr; | |
5220 | struct compound_hdr hdr; | |
5221 | int status; | |
5222 | ||
5223 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5224 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5225 | if (status) |
5226 | goto out; | |
5227 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5228 | if (status) |
5229 | goto out; | |
5230 | status = decode_putfh(&xdr); | |
5231 | if (status) | |
5232 | goto out; | |
5233 | status = decode_lockt(&xdr, res); | |
5234 | out: | |
5235 | return status; | |
5236 | } | |
5237 | ||
5238 | /* | |
5239 | * Decode LOCKU response | |
5240 | */ | |
8687b63a | 5241 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) |
1da177e4 LT |
5242 | { |
5243 | struct xdr_stream xdr; | |
5244 | struct compound_hdr hdr; | |
5245 | int status; | |
5246 | ||
5247 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5248 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5249 | if (status) |
5250 | goto out; | |
5251 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5252 | if (status) |
5253 | goto out; | |
5254 | status = decode_putfh(&xdr); | |
5255 | if (status) | |
5256 | goto out; | |
5257 | status = decode_locku(&xdr, res); | |
5258 | out: | |
5259 | return status; | |
5260 | } | |
5261 | ||
5262 | /* | |
5263 | * Decode READLINK response | |
5264 | */ | |
f50c7000 BH |
5265 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, |
5266 | struct nfs4_readlink_res *res) | |
1da177e4 LT |
5267 | { |
5268 | struct xdr_stream xdr; | |
5269 | struct compound_hdr hdr; | |
5270 | int status; | |
5271 | ||
5272 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5273 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5274 | if (status) |
5275 | goto out; | |
5276 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5277 | if (status) |
5278 | goto out; | |
5279 | status = decode_putfh(&xdr); | |
5280 | if (status) | |
5281 | goto out; | |
5282 | status = decode_readlink(&xdr, rqstp); | |
5283 | out: | |
5284 | return status; | |
5285 | } | |
5286 | ||
5287 | /* | |
5288 | * Decode READDIR response | |
5289 | */ | |
8687b63a | 5290 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) |
1da177e4 LT |
5291 | { |
5292 | struct xdr_stream xdr; | |
5293 | struct compound_hdr hdr; | |
5294 | int status; | |
5295 | ||
5296 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5297 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5298 | if (status) |
5299 | goto out; | |
5300 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5301 | if (status) |
5302 | goto out; | |
5303 | status = decode_putfh(&xdr); | |
5304 | if (status) | |
5305 | goto out; | |
5306 | status = decode_readdir(&xdr, rqstp, res); | |
5307 | out: | |
5308 | return status; | |
5309 | } | |
5310 | ||
5311 | /* | |
5312 | * Decode Read response | |
5313 | */ | |
8687b63a | 5314 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) |
1da177e4 LT |
5315 | { |
5316 | struct xdr_stream xdr; | |
5317 | struct compound_hdr hdr; | |
5318 | int status; | |
5319 | ||
5320 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5321 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5322 | if (status) |
5323 | goto out; | |
5324 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5325 | if (status) |
5326 | goto out; | |
5327 | status = decode_putfh(&xdr); | |
5328 | if (status) | |
5329 | goto out; | |
5330 | status = decode_read(&xdr, rqstp, res); | |
5331 | if (!status) | |
5332 | status = res->count; | |
5333 | out: | |
5334 | return status; | |
5335 | } | |
5336 | ||
5337 | /* | |
5338 | * Decode WRITE response | |
5339 | */ | |
8687b63a | 5340 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
5341 | { |
5342 | struct xdr_stream xdr; | |
5343 | struct compound_hdr hdr; | |
5344 | int status; | |
5345 | ||
5346 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5347 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5348 | if (status) |
5349 | goto out; | |
5350 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5351 | if (status) |
5352 | goto out; | |
5353 | status = decode_putfh(&xdr); | |
5354 | if (status) | |
5355 | goto out; | |
5356 | status = decode_write(&xdr, res); | |
4f9838c7 TM |
5357 | if (status) |
5358 | goto out; | |
80e52ace TM |
5359 | decode_getfattr(&xdr, res->fattr, res->server, |
5360 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
5361 | if (!status) |
5362 | status = res->count; | |
5363 | out: | |
5364 | return status; | |
5365 | } | |
5366 | ||
5367 | /* | |
5368 | * Decode COMMIT response | |
5369 | */ | |
8687b63a | 5370 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
5371 | { |
5372 | struct xdr_stream xdr; | |
5373 | struct compound_hdr hdr; | |
5374 | int status; | |
5375 | ||
5376 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5377 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5378 | if (status) |
5379 | goto out; | |
5380 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5381 | if (status) |
5382 | goto out; | |
5383 | status = decode_putfh(&xdr); | |
5384 | if (status) | |
5385 | goto out; | |
5386 | status = decode_commit(&xdr, res); | |
4f9838c7 TM |
5387 | if (status) |
5388 | goto out; | |
80e52ace TM |
5389 | decode_getfattr(&xdr, res->fattr, res->server, |
5390 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
5391 | out: |
5392 | return status; | |
5393 | } | |
5394 | ||
5395 | /* | |
8b173218 | 5396 | * Decode FSINFO response |
1da177e4 | 5397 | */ |
3dda5e43 BH |
5398 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, |
5399 | struct nfs4_fsinfo_res *res) | |
1da177e4 LT |
5400 | { |
5401 | struct xdr_stream xdr; | |
5402 | struct compound_hdr hdr; | |
5403 | int status; | |
5404 | ||
5405 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5406 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5407 | if (!status) |
5408 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5409 | if (!status) |
5410 | status = decode_putfh(&xdr); | |
5411 | if (!status) | |
3dda5e43 | 5412 | status = decode_fsinfo(&xdr, res->fsinfo); |
1da177e4 LT |
5413 | return status; |
5414 | } | |
5415 | ||
5416 | /* | |
8b173218 | 5417 | * Decode PATHCONF response |
1da177e4 | 5418 | */ |
d45b2989 BH |
5419 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, |
5420 | struct nfs4_pathconf_res *res) | |
1da177e4 LT |
5421 | { |
5422 | struct xdr_stream xdr; | |
5423 | struct compound_hdr hdr; | |
5424 | int status; | |
5425 | ||
5426 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5427 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5428 | if (!status) |
5429 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5430 | if (!status) |
5431 | status = decode_putfh(&xdr); | |
5432 | if (!status) | |
d45b2989 | 5433 | status = decode_pathconf(&xdr, res->pathconf); |
1da177e4 LT |
5434 | return status; |
5435 | } | |
5436 | ||
5437 | /* | |
8b173218 | 5438 | * Decode STATFS response |
1da177e4 | 5439 | */ |
24ad148a BH |
5440 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, |
5441 | struct nfs4_statfs_res *res) | |
1da177e4 LT |
5442 | { |
5443 | struct xdr_stream xdr; | |
5444 | struct compound_hdr hdr; | |
5445 | int status; | |
5446 | ||
5447 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5448 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5449 | if (!status) |
5450 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5451 | if (!status) |
5452 | status = decode_putfh(&xdr); | |
5453 | if (!status) | |
24ad148a | 5454 | status = decode_statfs(&xdr, res->fsstat); |
1da177e4 LT |
5455 | return status; |
5456 | } | |
5457 | ||
5458 | /* | |
8b173218 | 5459 | * Decode GETATTR_BITMAP response |
1da177e4 | 5460 | */ |
8687b63a | 5461 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) |
1da177e4 LT |
5462 | { |
5463 | struct xdr_stream xdr; | |
5464 | struct compound_hdr hdr; | |
5465 | int status; | |
5466 | ||
5467 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
9b7b9fcc AA |
5468 | status = decode_compound_hdr(&xdr, &hdr); |
5469 | if (status) | |
5470 | goto out; | |
5471 | status = decode_sequence(&xdr, &res->seq_res, req); | |
5472 | if (status) | |
1da177e4 LT |
5473 | goto out; |
5474 | if ((status = decode_putfh(&xdr)) != 0) | |
5475 | goto out; | |
5476 | status = decode_server_caps(&xdr, res); | |
5477 | out: | |
5478 | return status; | |
5479 | } | |
5480 | ||
5481 | /* | |
5482 | * Decode RENEW response | |
5483 | */ | |
8687b63a | 5484 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) |
1da177e4 LT |
5485 | { |
5486 | struct xdr_stream xdr; | |
5487 | struct compound_hdr hdr; | |
5488 | int status; | |
5489 | ||
5490 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5491 | status = decode_compound_hdr(&xdr, &hdr); | |
5492 | if (!status) | |
5493 | status = decode_renew(&xdr); | |
5494 | return status; | |
5495 | } | |
5496 | ||
5497 | /* | |
8b173218 | 5498 | * Decode SETCLIENTID response |
1da177e4 | 5499 | */ |
8687b63a | 5500 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, |
bb8b27e5 | 5501 | struct nfs4_setclientid_res *res) |
1da177e4 LT |
5502 | { |
5503 | struct xdr_stream xdr; | |
5504 | struct compound_hdr hdr; | |
5505 | int status; | |
5506 | ||
5507 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5508 | status = decode_compound_hdr(&xdr, &hdr); | |
5509 | if (!status) | |
bb8b27e5 | 5510 | status = decode_setclientid(&xdr, res); |
1da177e4 LT |
5511 | return status; |
5512 | } | |
5513 | ||
5514 | /* | |
8b173218 | 5515 | * Decode SETCLIENTID_CONFIRM response |
1da177e4 | 5516 | */ |
8687b63a | 5517 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
5518 | { |
5519 | struct xdr_stream xdr; | |
5520 | struct compound_hdr hdr; | |
5521 | int status; | |
5522 | ||
5523 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5524 | status = decode_compound_hdr(&xdr, &hdr); | |
5525 | if (!status) | |
5526 | status = decode_setclientid_confirm(&xdr); | |
5527 | if (!status) | |
5528 | status = decode_putrootfh(&xdr); | |
5529 | if (!status) | |
5530 | status = decode_fsinfo(&xdr, fsinfo); | |
1da177e4 LT |
5531 | return status; |
5532 | } | |
5533 | ||
5534 | /* | |
8b173218 | 5535 | * Decode DELEGRETURN response |
1da177e4 | 5536 | */ |
8687b63a | 5537 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) |
1da177e4 LT |
5538 | { |
5539 | struct xdr_stream xdr; | |
5540 | struct compound_hdr hdr; | |
5541 | int status; | |
5542 | ||
5543 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5544 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5545 | if (status) |
5546 | goto out; | |
5547 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
5548 | if (status) | |
fa178f29 TM |
5549 | goto out; |
5550 | status = decode_putfh(&xdr); | |
5551 | if (status != 0) | |
5552 | goto out; | |
5553 | status = decode_delegreturn(&xdr); | |
556ae3bb JL |
5554 | if (status != 0) |
5555 | goto out; | |
80e52ace TM |
5556 | decode_getfattr(&xdr, res->fattr, res->server, |
5557 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
fa178f29 | 5558 | out: |
1da177e4 LT |
5559 | return status; |
5560 | } | |
5561 | ||
683b57b4 | 5562 | /* |
8b173218 | 5563 | * Decode FS_LOCATIONS response |
683b57b4 | 5564 | */ |
22958463 BH |
5565 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, |
5566 | struct nfs4_fs_locations_res *res) | |
683b57b4 TM |
5567 | { |
5568 | struct xdr_stream xdr; | |
5569 | struct compound_hdr hdr; | |
5570 | int status; | |
5571 | ||
5572 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5573 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5574 | if (status) |
5575 | goto out; | |
5576 | status = decode_sequence(&xdr, &res->seq_res, req); | |
5577 | if (status) | |
683b57b4 TM |
5578 | goto out; |
5579 | if ((status = decode_putfh(&xdr)) != 0) | |
5580 | goto out; | |
5581 | if ((status = decode_lookup(&xdr)) != 0) | |
5582 | goto out; | |
5583 | xdr_enter_page(&xdr, PAGE_SIZE); | |
22958463 | 5584 | status = decode_getfattr(&xdr, &res->fs_locations->fattr, |
80e52ace TM |
5585 | res->fs_locations->server, |
5586 | !RPC_IS_ASYNC(req->rq_task)); | |
683b57b4 TM |
5587 | out: |
5588 | return status; | |
5589 | } | |
5590 | ||
99fe60d0 BH |
5591 | #if defined(CONFIG_NFS_V4_1) |
5592 | /* | |
8b173218 | 5593 | * Decode EXCHANGE_ID response |
99fe60d0 BH |
5594 | */ |
5595 | static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, | |
5596 | void *res) | |
5597 | { | |
5598 | struct xdr_stream xdr; | |
5599 | struct compound_hdr hdr; | |
5600 | int status; | |
5601 | ||
5602 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5603 | status = decode_compound_hdr(&xdr, &hdr); | |
5604 | if (!status) | |
5605 | status = decode_exchange_id(&xdr, res); | |
5606 | return status; | |
5607 | } | |
2050f0cc | 5608 | |
fc931582 | 5609 | /* |
8b173218 | 5610 | * Decode CREATE_SESSION response |
fc931582 AA |
5611 | */ |
5612 | static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, | |
5613 | struct nfs41_create_session_res *res) | |
5614 | { | |
5615 | struct xdr_stream xdr; | |
5616 | struct compound_hdr hdr; | |
5617 | int status; | |
5618 | ||
5619 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5620 | status = decode_compound_hdr(&xdr, &hdr); | |
5621 | if (!status) | |
5622 | status = decode_create_session(&xdr, res); | |
5623 | return status; | |
5624 | } | |
5625 | ||
0f3e66c6 | 5626 | /* |
8b173218 | 5627 | * Decode DESTROY_SESSION response |
0f3e66c6 AA |
5628 | */ |
5629 | static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, | |
5630 | void *dummy) | |
5631 | { | |
5632 | struct xdr_stream xdr; | |
5633 | struct compound_hdr hdr; | |
5634 | int status; | |
5635 | ||
5636 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5637 | status = decode_compound_hdr(&xdr, &hdr); | |
5638 | if (!status) | |
5639 | status = decode_destroy_session(&xdr, dummy); | |
5640 | return status; | |
5641 | } | |
5642 | ||
fc01cea9 | 5643 | /* |
8b173218 | 5644 | * Decode SEQUENCE response |
fc01cea9 AA |
5645 | */ |
5646 | static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, | |
5647 | struct nfs4_sequence_res *res) | |
5648 | { | |
5649 | struct xdr_stream xdr; | |
5650 | struct compound_hdr hdr; | |
5651 | int status; | |
5652 | ||
5653 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5654 | status = decode_compound_hdr(&xdr, &hdr); | |
5655 | if (!status) | |
5656 | status = decode_sequence(&xdr, res, rqstp); | |
5657 | return status; | |
5658 | } | |
5659 | ||
2050f0cc | 5660 | /* |
8b173218 | 5661 | * Decode GET_LEASE_TIME response |
2050f0cc AA |
5662 | */ |
5663 | static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, | |
5664 | struct nfs4_get_lease_time_res *res) | |
5665 | { | |
5666 | struct xdr_stream xdr; | |
5667 | struct compound_hdr hdr; | |
5668 | int status; | |
5669 | ||
5670 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5671 | status = decode_compound_hdr(&xdr, &hdr); | |
5672 | if (!status) | |
5673 | status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); | |
5674 | if (!status) | |
5675 | status = decode_putrootfh(&xdr); | |
5676 | if (!status) | |
5677 | status = decode_fsinfo(&xdr, res->lr_fsinfo); | |
5678 | return status; | |
5679 | } | |
18019753 RL |
5680 | |
5681 | /* | |
5682 | * Decode RECLAIM_COMPLETE response | |
5683 | */ | |
5684 | static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, uint32_t *p, | |
5685 | struct nfs41_reclaim_complete_res *res) | |
5686 | { | |
5687 | struct xdr_stream xdr; | |
5688 | struct compound_hdr hdr; | |
5689 | int status; | |
5690 | ||
5691 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5692 | status = decode_compound_hdr(&xdr, &hdr); | |
5693 | if (!status) | |
5694 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
5695 | if (!status) | |
5696 | status = decode_reclaim_complete(&xdr, (void *)NULL); | |
5697 | return status; | |
5698 | } | |
99fe60d0 BH |
5699 | #endif /* CONFIG_NFS_V4_1 */ |
5700 | ||
0dbb4c67 | 5701 | __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) |
1da177e4 LT |
5702 | { |
5703 | uint32_t bitmap[2] = {0}; | |
5704 | uint32_t len; | |
5705 | ||
5706 | if (!*p++) { | |
5707 | if (!*p) | |
5708 | return ERR_PTR(-EAGAIN); | |
5709 | entry->eof = 1; | |
5710 | return ERR_PTR(-EBADCOOKIE); | |
5711 | } | |
5712 | ||
5713 | entry->prev_cookie = entry->cookie; | |
5714 | p = xdr_decode_hyper(p, &entry->cookie); | |
5715 | entry->len = ntohl(*p++); | |
5716 | entry->name = (const char *) p; | |
5717 | p += XDR_QUADLEN(entry->len); | |
5718 | ||
5719 | /* | |
5720 | * In case the server doesn't return an inode number, | |
5721 | * we fake one here. (We don't use inode number 0, | |
5722 | * since glibc seems to choke on it...) | |
5723 | */ | |
5724 | entry->ino = 1; | |
5725 | ||
5726 | len = ntohl(*p++); /* bitmap length */ | |
5727 | if (len-- > 0) { | |
5728 | bitmap[0] = ntohl(*p++); | |
5729 | if (len-- > 0) { | |
5730 | bitmap[1] = ntohl(*p++); | |
5731 | p += len; | |
5732 | } | |
5733 | } | |
5734 | len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ | |
5735 | if (len > 0) { | |
97d312d0 MN |
5736 | if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { |
5737 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; | |
5738 | /* Ignore the return value of rdattr_error for now */ | |
5739 | p++; | |
5740 | len--; | |
5741 | } | |
1da177e4 LT |
5742 | if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) |
5743 | xdr_decode_hyper(p, &entry->ino); | |
5744 | else if (bitmap[0] == FATTR4_WORD0_FILEID) | |
5745 | xdr_decode_hyper(p, &entry->ino); | |
5746 | p += len; | |
5747 | } | |
5748 | ||
5749 | entry->eof = !p[0] && p[1]; | |
5750 | return p; | |
5751 | } | |
5752 | ||
5753 | /* | |
5754 | * We need to translate between nfs status return values and | |
5755 | * the local errno values which may not be the same. | |
5756 | */ | |
5757 | static struct { | |
5758 | int stat; | |
5759 | int errno; | |
5760 | } nfs_errtbl[] = { | |
5761 | { NFS4_OK, 0 }, | |
856dff3d BH |
5762 | { NFS4ERR_PERM, -EPERM }, |
5763 | { NFS4ERR_NOENT, -ENOENT }, | |
5764 | { NFS4ERR_IO, -errno_NFSERR_IO}, | |
5765 | { NFS4ERR_NXIO, -ENXIO }, | |
5766 | { NFS4ERR_ACCESS, -EACCES }, | |
5767 | { NFS4ERR_EXIST, -EEXIST }, | |
5768 | { NFS4ERR_XDEV, -EXDEV }, | |
5769 | { NFS4ERR_NOTDIR, -ENOTDIR }, | |
5770 | { NFS4ERR_ISDIR, -EISDIR }, | |
5771 | { NFS4ERR_INVAL, -EINVAL }, | |
5772 | { NFS4ERR_FBIG, -EFBIG }, | |
5773 | { NFS4ERR_NOSPC, -ENOSPC }, | |
5774 | { NFS4ERR_ROFS, -EROFS }, | |
5775 | { NFS4ERR_MLINK, -EMLINK }, | |
5776 | { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, | |
5777 | { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, | |
5778 | { NFS4ERR_DQUOT, -EDQUOT }, | |
5779 | { NFS4ERR_STALE, -ESTALE }, | |
5780 | { NFS4ERR_BADHANDLE, -EBADHANDLE }, | |
5781 | { NFS4ERR_BADOWNER, -EINVAL }, | |
5782 | { NFS4ERR_BADNAME, -EINVAL }, | |
5783 | { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, | |
5784 | { NFS4ERR_NOTSUPP, -ENOTSUPP }, | |
5785 | { NFS4ERR_TOOSMALL, -ETOOSMALL }, | |
fdcb4577 | 5786 | { NFS4ERR_SERVERFAULT, -EREMOTEIO }, |
856dff3d BH |
5787 | { NFS4ERR_BADTYPE, -EBADTYPE }, |
5788 | { NFS4ERR_LOCKED, -EAGAIN }, | |
856dff3d BH |
5789 | { NFS4ERR_SYMLINK, -ELOOP }, |
5790 | { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, | |
5791 | { NFS4ERR_DEADLOCK, -EDEADLK }, | |
5792 | { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs | |
1da177e4 LT |
5793 | * to be handled by a |
5794 | * middle-layer. | |
5795 | */ | |
856dff3d | 5796 | { -1, -EIO } |
1da177e4 LT |
5797 | }; |
5798 | ||
5799 | /* | |
5800 | * Convert an NFS error code to a local one. | |
5801 | * This one is used jointly by NFSv2 and NFSv3. | |
5802 | */ | |
5803 | static int | |
0a8ea437 | 5804 | nfs4_stat_to_errno(int stat) |
1da177e4 LT |
5805 | { |
5806 | int i; | |
5807 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { | |
5808 | if (nfs_errtbl[i].stat == stat) | |
5809 | return nfs_errtbl[i].errno; | |
5810 | } | |
5811 | if (stat <= 10000 || stat > 10100) { | |
5812 | /* The server is looney tunes. */ | |
fdcb4577 | 5813 | return -EREMOTEIO; |
1da177e4 LT |
5814 | } |
5815 | /* If we cannot translate the error, the recovery routines should | |
5816 | * handle it. | |
5817 | * Note: remaining NFSv4 error codes have values > 10000, so should | |
5818 | * not conflict with native Linux error codes. | |
5819 | */ | |
856dff3d | 5820 | return -stat; |
1da177e4 LT |
5821 | } |
5822 | ||
1da177e4 LT |
5823 | #define PROC(proc, argtype, restype) \ |
5824 | [NFSPROC4_CLNT_##proc] = { \ | |
5825 | .p_proc = NFSPROC4_COMPOUND, \ | |
5826 | .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ | |
5827 | .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ | |
2bea90d4 CL |
5828 | .p_arglen = NFS4_##argtype##_sz, \ |
5829 | .p_replen = NFS4_##restype##_sz, \ | |
cc0175c1 CL |
5830 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
5831 | .p_name = #proc, \ | |
05d564fe | 5832 | } |
1da177e4 LT |
5833 | |
5834 | struct rpc_procinfo nfs4_procedures[] = { | |
5835 | PROC(READ, enc_read, dec_read), | |
5836 | PROC(WRITE, enc_write, dec_write), | |
5837 | PROC(COMMIT, enc_commit, dec_commit), | |
5838 | PROC(OPEN, enc_open, dec_open), | |
5839 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), | |
5840 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), | |
5841 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), | |
5842 | PROC(CLOSE, enc_close, dec_close), | |
5843 | PROC(SETATTR, enc_setattr, dec_setattr), | |
5844 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), | |
5845 | PROC(RENEW, enc_renew, dec_renew), | |
5846 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), | |
5847 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), | |
5848 | PROC(LOCK, enc_lock, dec_lock), | |
5849 | PROC(LOCKT, enc_lockt, dec_lockt), | |
5850 | PROC(LOCKU, enc_locku, dec_locku), | |
5851 | PROC(ACCESS, enc_access, dec_access), | |
5852 | PROC(GETATTR, enc_getattr, dec_getattr), | |
5853 | PROC(LOOKUP, enc_lookup, dec_lookup), | |
5854 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), | |
5855 | PROC(REMOVE, enc_remove, dec_remove), | |
5856 | PROC(RENAME, enc_rename, dec_rename), | |
5857 | PROC(LINK, enc_link, dec_link), | |
5858 | PROC(SYMLINK, enc_symlink, dec_symlink), | |
5859 | PROC(CREATE, enc_create, dec_create), | |
5860 | PROC(PATHCONF, enc_pathconf, dec_pathconf), | |
5861 | PROC(STATFS, enc_statfs, dec_statfs), | |
5862 | PROC(READLINK, enc_readlink, dec_readlink), | |
5863 | PROC(READDIR, enc_readdir, dec_readdir), | |
5864 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), | |
5865 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), | |
029d105e | 5866 | PROC(GETACL, enc_getacl, dec_getacl), |
23ec6965 | 5867 | PROC(SETACL, enc_setacl, dec_setacl), |
683b57b4 | 5868 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), |
99fe60d0 BH |
5869 | #if defined(CONFIG_NFS_V4_1) |
5870 | PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), | |
fc931582 | 5871 | PROC(CREATE_SESSION, enc_create_session, dec_create_session), |
0f3e66c6 | 5872 | PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), |
fc01cea9 | 5873 | PROC(SEQUENCE, enc_sequence, dec_sequence), |
2050f0cc | 5874 | PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), |
18019753 | 5875 | PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), |
99fe60d0 | 5876 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 LT |
5877 | }; |
5878 | ||
5879 | struct rpc_version nfs_version4 = { | |
5880 | .number = 4, | |
e8c96f8c | 5881 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
1da177e4 LT |
5882 | .procs = nfs4_procedures |
5883 | }; | |
5884 | ||
5885 | /* | |
5886 | * Local variables: | |
5887 | * c-basic-offset: 8 | |
5888 | * End: | |
5889 | */ |