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1da177e4 LT |
1 | /* |
2 | * fs/nfs/nfs4xdr.c | |
3 | * | |
4 | * Client-side XDR for NFSv4. | |
5 | * | |
6 | * Copyright (c) 2002 The Regents of the University of Michigan. | |
7 | * All rights reserved. | |
8 | * | |
9 | * Kendrick Smith <kmsmith@umich.edu> | |
10 | * Andy Adamson <andros@umich.edu> | |
6c0195a4 | 11 | * |
1da177e4 LT |
12 | * Redistribution and use in source and binary forms, with or without |
13 | * modification, are permitted provided that the following conditions | |
14 | * are met: | |
15 | * | |
16 | * 1. Redistributions of source code must retain the above copyright | |
17 | * notice, this list of conditions and the following disclaimer. | |
18 | * 2. Redistributions in binary form must reproduce the above copyright | |
19 | * notice, this list of conditions and the following disclaimer in the | |
20 | * documentation and/or other materials provided with the distribution. | |
21 | * 3. Neither the name of the University nor the names of its | |
22 | * contributors may be used to endorse or promote products derived | |
23 | * from this software without specific prior written permission. | |
24 | * | |
25 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
26 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
27 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
28 | * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
29 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
32 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
33 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
34 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
35 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
36 | */ | |
37 | ||
38 | #include <linux/param.h> | |
39 | #include <linux/time.h> | |
40 | #include <linux/mm.h> | |
41 | #include <linux/slab.h> | |
1da177e4 LT |
42 | #include <linux/errno.h> |
43 | #include <linux/string.h> | |
44 | #include <linux/in.h> | |
45 | #include <linux/pagemap.h> | |
46 | #include <linux/proc_fs.h> | |
47 | #include <linux/kdev_t.h> | |
48 | #include <linux/sunrpc/clnt.h> | |
2449ea2e | 49 | #include <linux/sunrpc/msg_prot.h> |
1da177e4 LT |
50 | #include <linux/nfs.h> |
51 | #include <linux/nfs4.h> | |
52 | #include <linux/nfs_fs.h> | |
53 | #include <linux/nfs_idmap.h> | |
4ce79717 | 54 | #include "nfs4_fs.h" |
4882ef72 | 55 | #include "internal.h" |
1da177e4 LT |
56 | |
57 | #define NFSDBG_FACILITY NFSDBG_XDR | |
58 | ||
59 | /* Mapping from NFS error code to "errno" error code. */ | |
60 | #define errno_NFSERR_IO EIO | |
61 | ||
0a8ea437 | 62 | static int nfs4_stat_to_errno(int); |
1da177e4 LT |
63 | |
64 | /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ | |
65 | #ifdef DEBUG | |
66 | #define NFS4_MAXTAGLEN 20 | |
67 | #else | |
68 | #define NFS4_MAXTAGLEN 0 | |
69 | #endif | |
70 | ||
6c0195a4 | 71 | /* lock,open owner id: |
9f958ab8 | 72 | * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) |
1da177e4 | 73 | */ |
9f958ab8 TM |
74 | #define open_owner_id_maxsz (1 + 4) |
75 | #define lock_owner_id_maxsz (1 + 4) | |
9104a55d | 76 | #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
1da177e4 LT |
77 | #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) |
78 | #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) | |
79 | #define op_encode_hdr_maxsz (1) | |
80 | #define op_decode_hdr_maxsz (2) | |
9104a55d TM |
81 | #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) |
82 | #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
83 | #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
84 | #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1da177e4 LT |
85 | #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ |
86 | (NFS4_FHSIZE >> 2)) | |
87 | #define decode_putfh_maxsz (op_decode_hdr_maxsz) | |
88 | #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) | |
89 | #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) | |
90 | #define encode_getfh_maxsz (op_encode_hdr_maxsz) | |
91 | #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ | |
92 | ((3+NFS4_FHSIZE) >> 2)) | |
96928206 BF |
93 | #define nfs4_fattr_bitmap_maxsz 3 |
94 | #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) | |
1da177e4 LT |
95 | #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) |
96 | #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) | |
bd625ba8 TM |
97 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
98 | #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
96928206 BF |
99 | /* This is based on getfattr, which uses the most attributes: */ |
100 | #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ | |
bd625ba8 | 101 | 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) |
96928206 BF |
102 | #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ |
103 | nfs4_fattr_value_maxsz) | |
104 | #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) | |
9104a55d TM |
105 | #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ |
106 | 1 + 2 + 1 + \ | |
107 | nfs4_owner_maxsz + \ | |
108 | nfs4_group_maxsz + \ | |
109 | 4 + 4) | |
1da177e4 LT |
110 | #define encode_savefh_maxsz (op_encode_hdr_maxsz) |
111 | #define decode_savefh_maxsz (op_decode_hdr_maxsz) | |
56ae19f3 TM |
112 | #define encode_restorefh_maxsz (op_encode_hdr_maxsz) |
113 | #define decode_restorefh_maxsz (op_decode_hdr_maxsz) | |
2f42b5d0 | 114 | #define encode_fsinfo_maxsz (encode_getattr_maxsz) |
1da177e4 LT |
115 | #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) |
116 | #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) | |
117 | #define decode_renew_maxsz (op_decode_hdr_maxsz) | |
118 | #define encode_setclientid_maxsz \ | |
119 | (op_encode_hdr_maxsz + \ | |
cc38bac3 CL |
120 | XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ |
121 | XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ | |
122 | 1 /* sc_prog */ + \ | |
123 | XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ | |
124 | XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ | |
125 | 1) /* sc_cb_ident */ | |
1da177e4 LT |
126 | #define decode_setclientid_maxsz \ |
127 | (op_decode_hdr_maxsz + \ | |
128 | 2 + \ | |
129 | 1024) /* large value for CLID_INUSE */ | |
130 | #define encode_setclientid_confirm_maxsz \ | |
131 | (op_encode_hdr_maxsz + \ | |
132 | 3 + (NFS4_VERIFIER_SIZE >> 2)) | |
133 | #define decode_setclientid_confirm_maxsz \ | |
134 | (op_decode_hdr_maxsz) | |
e6889620 TM |
135 | #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) |
136 | #define decode_lookup_maxsz (op_decode_hdr_maxsz) | |
2cebf828 TM |
137 | #define encode_share_access_maxsz \ |
138 | (2) | |
4882ef72 | 139 | #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) |
2cebf828 TM |
140 | #define encode_opentype_maxsz (1 + encode_createmode_maxsz) |
141 | #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) | |
142 | #define encode_open_maxsz (op_encode_hdr_maxsz + \ | |
143 | 2 + encode_share_access_maxsz + 2 + \ | |
144 | open_owner_id_maxsz + \ | |
145 | encode_opentype_maxsz + \ | |
146 | encode_claim_null_maxsz) | |
147 | #define decode_ace_maxsz (3 + nfs4_owner_maxsz) | |
9104a55d | 148 | #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ |
2cebf828 TM |
149 | decode_ace_maxsz) |
150 | #define decode_change_info_maxsz (5) | |
151 | #define decode_open_maxsz (op_decode_hdr_maxsz + \ | |
9104a55d | 152 | decode_stateid_maxsz + \ |
2cebf828 TM |
153 | decode_change_info_maxsz + 1 + \ |
154 | nfs4_fattr_bitmap_maxsz + \ | |
155 | decode_delegation_maxsz) | |
9104a55d TM |
156 | #define encode_open_confirm_maxsz \ |
157 | (op_encode_hdr_maxsz + \ | |
158 | encode_stateid_maxsz + 1) | |
159 | #define decode_open_confirm_maxsz \ | |
160 | (op_decode_hdr_maxsz + \ | |
161 | decode_stateid_maxsz) | |
162 | #define encode_open_downgrade_maxsz \ | |
163 | (op_encode_hdr_maxsz + \ | |
164 | encode_stateid_maxsz + 1 + \ | |
165 | encode_share_access_maxsz) | |
166 | #define decode_open_downgrade_maxsz \ | |
167 | (op_decode_hdr_maxsz + \ | |
168 | decode_stateid_maxsz) | |
169 | #define encode_close_maxsz (op_encode_hdr_maxsz + \ | |
170 | 1 + encode_stateid_maxsz) | |
171 | #define decode_close_maxsz (op_decode_hdr_maxsz + \ | |
172 | decode_stateid_maxsz) | |
173 | #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ | |
174 | encode_stateid_maxsz + \ | |
175 | encode_attrs_maxsz) | |
176 | #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ | |
177 | nfs4_fattr_bitmap_maxsz) | |
178 | #define encode_read_maxsz (op_encode_hdr_maxsz + \ | |
179 | encode_stateid_maxsz + 3) | |
180 | #define decode_read_maxsz (op_decode_hdr_maxsz + 2) | |
181 | #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ | |
182 | 2 + encode_verifier_maxsz + 5) | |
183 | #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ | |
184 | decode_verifier_maxsz) | |
185 | #define encode_readlink_maxsz (op_encode_hdr_maxsz) | |
186 | #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) | |
187 | #define encode_write_maxsz (op_encode_hdr_maxsz + \ | |
188 | encode_stateid_maxsz + 4) | |
189 | #define decode_write_maxsz (op_decode_hdr_maxsz + \ | |
190 | 2 + decode_verifier_maxsz) | |
191 | #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) | |
192 | #define decode_commit_maxsz (op_decode_hdr_maxsz + \ | |
193 | decode_verifier_maxsz) | |
1da177e4 LT |
194 | #define encode_remove_maxsz (op_encode_hdr_maxsz + \ |
195 | nfs4_name_maxsz) | |
6ce18391 BH |
196 | #define decode_remove_maxsz (op_decode_hdr_maxsz + \ |
197 | decode_change_info_maxsz) | |
1da177e4 LT |
198 | #define encode_rename_maxsz (op_encode_hdr_maxsz + \ |
199 | 2 * nfs4_name_maxsz) | |
6ce18391 BH |
200 | #define decode_rename_maxsz (op_decode_hdr_maxsz + \ |
201 | decode_change_info_maxsz + \ | |
202 | decode_change_info_maxsz) | |
1da177e4 LT |
203 | #define encode_link_maxsz (op_encode_hdr_maxsz + \ |
204 | nfs4_name_maxsz) | |
6ce18391 | 205 | #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) |
9104a55d TM |
206 | #define encode_lock_maxsz (op_encode_hdr_maxsz + \ |
207 | 7 + \ | |
208 | 1 + encode_stateid_maxsz + 8) | |
209 | #define decode_lock_denied_maxsz \ | |
210 | (8 + decode_lockowner_maxsz) | |
211 | #define decode_lock_maxsz (op_decode_hdr_maxsz + \ | |
212 | decode_lock_denied_maxsz) | |
213 | #define encode_lockt_maxsz (op_encode_hdr_maxsz + 12) | |
214 | #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ | |
215 | decode_lock_denied_maxsz) | |
216 | #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ | |
217 | encode_stateid_maxsz + \ | |
218 | 4) | |
219 | #define decode_locku_maxsz (op_decode_hdr_maxsz + \ | |
220 | decode_stateid_maxsz) | |
221 | #define encode_access_maxsz (op_encode_hdr_maxsz + 1) | |
222 | #define decode_access_maxsz (op_decode_hdr_maxsz + 2) | |
1da177e4 LT |
223 | #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ |
224 | 1 + nfs4_name_maxsz + \ | |
94a6d753 | 225 | 1 + \ |
96928206 | 226 | nfs4_fattr_maxsz) |
1da177e4 LT |
227 | #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) |
228 | #define encode_create_maxsz (op_encode_hdr_maxsz + \ | |
9104a55d TM |
229 | 1 + 2 + nfs4_name_maxsz + \ |
230 | encode_attrs_maxsz) | |
2cebf828 TM |
231 | #define decode_create_maxsz (op_decode_hdr_maxsz + \ |
232 | decode_change_info_maxsz + \ | |
233 | nfs4_fattr_bitmap_maxsz) | |
9104a55d TM |
234 | #define encode_statfs_maxsz (encode_getattr_maxsz) |
235 | #define decode_statfs_maxsz (decode_getattr_maxsz) | |
1da177e4 LT |
236 | #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) |
237 | #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) | |
9104a55d TM |
238 | #define encode_getacl_maxsz (encode_getattr_maxsz) |
239 | #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ | |
240 | nfs4_fattr_bitmap_maxsz + 1) | |
241 | #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ | |
242 | encode_stateid_maxsz + 3) | |
243 | #define decode_setacl_maxsz (decode_setattr_maxsz) | |
e6889620 TM |
244 | #define encode_fs_locations_maxsz \ |
245 | (encode_getattr_maxsz) | |
246 | #define decode_fs_locations_maxsz \ | |
247 | (0) | |
9b7b9fcc AA |
248 | |
249 | #if defined(CONFIG_NFS_V4_1) | |
fc931582 AA |
250 | #define NFS4_MAX_MACHINE_NAME_LEN (64) |
251 | ||
99fe60d0 BH |
252 | #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ |
253 | encode_verifier_maxsz + \ | |
254 | 1 /* co_ownerid.len */ + \ | |
255 | XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ | |
256 | 1 /* flags */ + \ | |
257 | 1 /* spa_how */ + \ | |
258 | 0 /* SP4_NONE (for now) */ + \ | |
259 | 1 /* zero implemetation id array */) | |
260 | #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ | |
261 | 2 /* eir_clientid */ + \ | |
262 | 1 /* eir_sequenceid */ + \ | |
263 | 1 /* eir_flags */ + \ | |
264 | 1 /* spr_how */ + \ | |
265 | 0 /* SP4_NONE (for now) */ + \ | |
266 | 2 /* eir_server_owner.so_minor_id */ + \ | |
267 | /* eir_server_owner.so_major_id<> */ \ | |
268 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ | |
269 | /* eir_server_scope<> */ \ | |
270 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ | |
271 | 1 /* eir_server_impl_id array length */ + \ | |
272 | 0 /* ignored eir_server_impl_id contents */) | |
fc931582 AA |
273 | #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) |
274 | #define decode_channel_attrs_maxsz (6 + \ | |
275 | 1 /* ca_rdma_ird.len */ + \ | |
276 | 1 /* ca_rdma_ird */) | |
277 | #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ | |
278 | 2 /* csa_clientid */ + \ | |
279 | 1 /* csa_sequence */ + \ | |
280 | 1 /* csa_flags */ + \ | |
281 | encode_channel_attrs_maxsz + \ | |
282 | encode_channel_attrs_maxsz + \ | |
283 | 1 /* csa_cb_program */ + \ | |
284 | 1 /* csa_sec_parms.len (1) */ + \ | |
285 | 1 /* cb_secflavor (AUTH_SYS) */ + \ | |
286 | 1 /* stamp */ + \ | |
287 | 1 /* machinename.len */ + \ | |
288 | XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ | |
289 | 1 /* uid */ + \ | |
290 | 1 /* gid */ + \ | |
291 | 1 /* gids.len (0) */) | |
292 | #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ | |
293 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ | |
294 | 1 /* csr_sequence */ + \ | |
295 | 1 /* csr_flags */ + \ | |
296 | decode_channel_attrs_maxsz + \ | |
297 | decode_channel_attrs_maxsz) | |
0f3e66c6 AA |
298 | #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) |
299 | #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) | |
fc01cea9 AA |
300 | #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ |
301 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) | |
302 | #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ | |
303 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) | |
18019753 RL |
304 | #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) |
305 | #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) | |
9b7b9fcc AA |
306 | #else /* CONFIG_NFS_V4_1 */ |
307 | #define encode_sequence_maxsz 0 | |
308 | #define decode_sequence_maxsz 0 | |
309 | #endif /* CONFIG_NFS_V4_1 */ | |
310 | ||
1da177e4 LT |
311 | #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ |
312 | #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ | |
313 | #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 314 | encode_sequence_maxsz + \ |
1da177e4 | 315 | encode_putfh_maxsz + \ |
9104a55d | 316 | encode_read_maxsz) |
1da177e4 | 317 | #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 318 | decode_sequence_maxsz + \ |
1da177e4 | 319 | decode_putfh_maxsz + \ |
9104a55d | 320 | decode_read_maxsz) |
1da177e4 | 321 | #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 322 | encode_sequence_maxsz + \ |
1da177e4 | 323 | encode_putfh_maxsz + \ |
9104a55d | 324 | encode_readlink_maxsz) |
1da177e4 | 325 | #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 326 | decode_sequence_maxsz + \ |
1da177e4 | 327 | decode_putfh_maxsz + \ |
9104a55d | 328 | decode_readlink_maxsz) |
1da177e4 | 329 | #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 330 | encode_sequence_maxsz + \ |
1da177e4 | 331 | encode_putfh_maxsz + \ |
9104a55d | 332 | encode_readdir_maxsz) |
1da177e4 | 333 | #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 334 | decode_sequence_maxsz + \ |
1da177e4 | 335 | decode_putfh_maxsz + \ |
9104a55d | 336 | decode_readdir_maxsz) |
1da177e4 | 337 | #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 338 | encode_sequence_maxsz + \ |
1da177e4 | 339 | encode_putfh_maxsz + \ |
9104a55d | 340 | encode_write_maxsz + \ |
4f9838c7 | 341 | encode_getattr_maxsz) |
1da177e4 | 342 | #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 343 | decode_sequence_maxsz + \ |
1da177e4 | 344 | decode_putfh_maxsz + \ |
9104a55d | 345 | decode_write_maxsz + \ |
4f9838c7 | 346 | decode_getattr_maxsz) |
1da177e4 | 347 | #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 348 | encode_sequence_maxsz + \ |
1da177e4 | 349 | encode_putfh_maxsz + \ |
9104a55d | 350 | encode_commit_maxsz + \ |
4f9838c7 | 351 | encode_getattr_maxsz) |
1da177e4 | 352 | #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 353 | decode_sequence_maxsz + \ |
1da177e4 | 354 | decode_putfh_maxsz + \ |
9104a55d | 355 | decode_commit_maxsz + \ |
4f9838c7 | 356 | decode_getattr_maxsz) |
1da177e4 | 357 | #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 358 | encode_sequence_maxsz + \ |
2cebf828 TM |
359 | encode_putfh_maxsz + \ |
360 | encode_savefh_maxsz + \ | |
361 | encode_open_maxsz + \ | |
362 | encode_getfh_maxsz + \ | |
363 | encode_getattr_maxsz + \ | |
364 | encode_restorefh_maxsz + \ | |
365 | encode_getattr_maxsz) | |
1da177e4 | 366 | #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 367 | decode_sequence_maxsz + \ |
2cebf828 TM |
368 | decode_putfh_maxsz + \ |
369 | decode_savefh_maxsz + \ | |
370 | decode_open_maxsz + \ | |
371 | decode_getfh_maxsz + \ | |
372 | decode_getattr_maxsz + \ | |
373 | decode_restorefh_maxsz + \ | |
374 | decode_getattr_maxsz) | |
9104a55d TM |
375 | #define NFS4_enc_open_confirm_sz \ |
376 | (compound_encode_hdr_maxsz + \ | |
377 | encode_putfh_maxsz + \ | |
378 | encode_open_confirm_maxsz) | |
379 | #define NFS4_dec_open_confirm_sz \ | |
380 | (compound_decode_hdr_maxsz + \ | |
381 | decode_putfh_maxsz + \ | |
382 | decode_open_confirm_maxsz) | |
1da177e4 | 383 | #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 384 | encode_sequence_maxsz + \ |
1da177e4 | 385 | encode_putfh_maxsz + \ |
2cebf828 TM |
386 | encode_open_maxsz + \ |
387 | encode_getattr_maxsz) | |
1da177e4 | 388 | #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 389 | decode_sequence_maxsz + \ |
1da177e4 | 390 | decode_putfh_maxsz + \ |
2cebf828 TM |
391 | decode_open_maxsz + \ |
392 | decode_getattr_maxsz) | |
1da177e4 LT |
393 | #define NFS4_enc_open_downgrade_sz \ |
394 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 395 | encode_sequence_maxsz + \ |
9104a55d TM |
396 | encode_putfh_maxsz + \ |
397 | encode_open_downgrade_maxsz + \ | |
398 | encode_getattr_maxsz) | |
1da177e4 LT |
399 | #define NFS4_dec_open_downgrade_sz \ |
400 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 401 | decode_sequence_maxsz + \ |
9104a55d TM |
402 | decode_putfh_maxsz + \ |
403 | decode_open_downgrade_maxsz + \ | |
404 | decode_getattr_maxsz) | |
405 | #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 406 | encode_sequence_maxsz + \ |
9104a55d TM |
407 | encode_putfh_maxsz + \ |
408 | encode_close_maxsz + \ | |
409 | encode_getattr_maxsz) | |
410 | #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 411 | decode_sequence_maxsz + \ |
9104a55d TM |
412 | decode_putfh_maxsz + \ |
413 | decode_close_maxsz + \ | |
414 | decode_getattr_maxsz) | |
415 | #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 416 | encode_sequence_maxsz + \ |
9104a55d TM |
417 | encode_putfh_maxsz + \ |
418 | encode_setattr_maxsz + \ | |
419 | encode_getattr_maxsz) | |
420 | #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 421 | decode_sequence_maxsz + \ |
9104a55d TM |
422 | decode_putfh_maxsz + \ |
423 | decode_setattr_maxsz + \ | |
424 | decode_getattr_maxsz) | |
1da177e4 | 425 | #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 426 | encode_sequence_maxsz + \ |
1da177e4 LT |
427 | encode_putfh_maxsz + \ |
428 | encode_fsinfo_maxsz) | |
429 | #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 430 | decode_sequence_maxsz + \ |
1da177e4 LT |
431 | decode_putfh_maxsz + \ |
432 | decode_fsinfo_maxsz) | |
433 | #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ | |
434 | encode_renew_maxsz) | |
435 | #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ | |
436 | decode_renew_maxsz) | |
437 | #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ | |
438 | encode_setclientid_maxsz) | |
439 | #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ | |
440 | decode_setclientid_maxsz) | |
441 | #define NFS4_enc_setclientid_confirm_sz \ | |
442 | (compound_encode_hdr_maxsz + \ | |
443 | encode_setclientid_confirm_maxsz + \ | |
444 | encode_putrootfh_maxsz + \ | |
445 | encode_fsinfo_maxsz) | |
446 | #define NFS4_dec_setclientid_confirm_sz \ | |
447 | (compound_decode_hdr_maxsz + \ | |
448 | decode_setclientid_confirm_maxsz + \ | |
449 | decode_putrootfh_maxsz + \ | |
450 | decode_fsinfo_maxsz) | |
451 | #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 452 | encode_sequence_maxsz + \ |
1da177e4 | 453 | encode_putfh_maxsz + \ |
9104a55d | 454 | encode_lock_maxsz) |
1da177e4 | 455 | #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 456 | decode_sequence_maxsz + \ |
1da177e4 | 457 | decode_putfh_maxsz + \ |
9104a55d | 458 | decode_lock_maxsz) |
1da177e4 | 459 | #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 460 | encode_sequence_maxsz + \ |
1da177e4 | 461 | encode_putfh_maxsz + \ |
9104a55d TM |
462 | encode_lockt_maxsz) |
463 | #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 464 | decode_sequence_maxsz + \ |
9104a55d TM |
465 | decode_putfh_maxsz + \ |
466 | decode_lockt_maxsz) | |
1da177e4 | 467 | #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 468 | encode_sequence_maxsz + \ |
1da177e4 | 469 | encode_putfh_maxsz + \ |
9104a55d | 470 | encode_locku_maxsz) |
1da177e4 | 471 | #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 472 | decode_sequence_maxsz + \ |
1da177e4 | 473 | decode_putfh_maxsz + \ |
9104a55d | 474 | decode_locku_maxsz) |
1da177e4 | 475 | #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 476 | encode_sequence_maxsz + \ |
1da177e4 | 477 | encode_putfh_maxsz + \ |
76b32999 TM |
478 | encode_access_maxsz + \ |
479 | encode_getattr_maxsz) | |
1da177e4 | 480 | #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 481 | decode_sequence_maxsz + \ |
1da177e4 | 482 | decode_putfh_maxsz + \ |
76b32999 TM |
483 | decode_access_maxsz + \ |
484 | decode_getattr_maxsz) | |
1da177e4 | 485 | #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 486 | encode_sequence_maxsz + \ |
1da177e4 LT |
487 | encode_putfh_maxsz + \ |
488 | encode_getattr_maxsz) | |
489 | #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 490 | decode_sequence_maxsz + \ |
1da177e4 LT |
491 | decode_putfh_maxsz + \ |
492 | decode_getattr_maxsz) | |
493 | #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 494 | encode_sequence_maxsz + \ |
1da177e4 LT |
495 | encode_putfh_maxsz + \ |
496 | encode_lookup_maxsz + \ | |
497 | encode_getattr_maxsz + \ | |
498 | encode_getfh_maxsz) | |
499 | #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 500 | decode_sequence_maxsz + \ |
1da177e4 | 501 | decode_putfh_maxsz + \ |
e6889620 | 502 | decode_lookup_maxsz + \ |
1da177e4 LT |
503 | decode_getattr_maxsz + \ |
504 | decode_getfh_maxsz) | |
505 | #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 506 | encode_sequence_maxsz + \ |
1da177e4 LT |
507 | encode_putrootfh_maxsz + \ |
508 | encode_getattr_maxsz + \ | |
509 | encode_getfh_maxsz) | |
510 | #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 511 | decode_sequence_maxsz + \ |
1da177e4 LT |
512 | decode_putrootfh_maxsz + \ |
513 | decode_getattr_maxsz + \ | |
514 | decode_getfh_maxsz) | |
515 | #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 516 | encode_sequence_maxsz + \ |
1da177e4 | 517 | encode_putfh_maxsz + \ |
16e42959 TM |
518 | encode_remove_maxsz + \ |
519 | encode_getattr_maxsz) | |
1da177e4 | 520 | #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 521 | decode_sequence_maxsz + \ |
1da177e4 | 522 | decode_putfh_maxsz + \ |
6ce18391 | 523 | decode_remove_maxsz + \ |
16e42959 | 524 | decode_getattr_maxsz) |
1da177e4 | 525 | #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 526 | encode_sequence_maxsz + \ |
1da177e4 LT |
527 | encode_putfh_maxsz + \ |
528 | encode_savefh_maxsz + \ | |
529 | encode_putfh_maxsz + \ | |
6caf2c82 TM |
530 | encode_rename_maxsz + \ |
531 | encode_getattr_maxsz + \ | |
532 | encode_restorefh_maxsz + \ | |
533 | encode_getattr_maxsz) | |
1da177e4 | 534 | #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 535 | decode_sequence_maxsz + \ |
1da177e4 LT |
536 | decode_putfh_maxsz + \ |
537 | decode_savefh_maxsz + \ | |
538 | decode_putfh_maxsz + \ | |
6caf2c82 TM |
539 | decode_rename_maxsz + \ |
540 | decode_getattr_maxsz + \ | |
541 | decode_restorefh_maxsz + \ | |
542 | decode_getattr_maxsz) | |
1da177e4 | 543 | #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 544 | encode_sequence_maxsz + \ |
1da177e4 LT |
545 | encode_putfh_maxsz + \ |
546 | encode_savefh_maxsz + \ | |
547 | encode_putfh_maxsz + \ | |
91ba2eee TM |
548 | encode_link_maxsz + \ |
549 | decode_getattr_maxsz + \ | |
550 | encode_restorefh_maxsz + \ | |
551 | decode_getattr_maxsz) | |
1da177e4 | 552 | #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 553 | decode_sequence_maxsz + \ |
1da177e4 LT |
554 | decode_putfh_maxsz + \ |
555 | decode_savefh_maxsz + \ | |
556 | decode_putfh_maxsz + \ | |
91ba2eee TM |
557 | decode_link_maxsz + \ |
558 | decode_getattr_maxsz + \ | |
559 | decode_restorefh_maxsz + \ | |
560 | decode_getattr_maxsz) | |
1da177e4 | 561 | #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 562 | encode_sequence_maxsz + \ |
1da177e4 LT |
563 | encode_putfh_maxsz + \ |
564 | encode_symlink_maxsz + \ | |
565 | encode_getattr_maxsz + \ | |
566 | encode_getfh_maxsz) | |
567 | #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 568 | decode_sequence_maxsz + \ |
1da177e4 LT |
569 | decode_putfh_maxsz + \ |
570 | decode_symlink_maxsz + \ | |
571 | decode_getattr_maxsz + \ | |
572 | decode_getfh_maxsz) | |
573 | #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 574 | encode_sequence_maxsz + \ |
1da177e4 | 575 | encode_putfh_maxsz + \ |
56ae19f3 | 576 | encode_savefh_maxsz + \ |
1da177e4 | 577 | encode_create_maxsz + \ |
56ae19f3 | 578 | encode_getfh_maxsz + \ |
1da177e4 | 579 | encode_getattr_maxsz + \ |
56ae19f3 TM |
580 | encode_restorefh_maxsz + \ |
581 | encode_getattr_maxsz) | |
1da177e4 | 582 | #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 583 | decode_sequence_maxsz + \ |
1da177e4 | 584 | decode_putfh_maxsz + \ |
56ae19f3 | 585 | decode_savefh_maxsz + \ |
1da177e4 | 586 | decode_create_maxsz + \ |
56ae19f3 | 587 | decode_getfh_maxsz + \ |
1da177e4 | 588 | decode_getattr_maxsz + \ |
56ae19f3 TM |
589 | decode_restorefh_maxsz + \ |
590 | decode_getattr_maxsz) | |
1da177e4 | 591 | #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 592 | encode_sequence_maxsz + \ |
1da177e4 LT |
593 | encode_putfh_maxsz + \ |
594 | encode_getattr_maxsz) | |
595 | #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 596 | decode_sequence_maxsz + \ |
1da177e4 LT |
597 | decode_putfh_maxsz + \ |
598 | decode_getattr_maxsz) | |
599 | #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 600 | encode_sequence_maxsz + \ |
1da177e4 | 601 | encode_putfh_maxsz + \ |
9104a55d | 602 | encode_statfs_maxsz) |
1da177e4 | 603 | #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 604 | decode_sequence_maxsz + \ |
1da177e4 | 605 | decode_putfh_maxsz + \ |
9104a55d | 606 | decode_statfs_maxsz) |
1da177e4 | 607 | #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 608 | encode_sequence_maxsz + \ |
ab91f264 | 609 | encode_putfh_maxsz + \ |
1da177e4 LT |
610 | encode_getattr_maxsz) |
611 | #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 612 | decode_sequence_maxsz + \ |
ab91f264 | 613 | decode_putfh_maxsz + \ |
1da177e4 LT |
614 | decode_getattr_maxsz) |
615 | #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 616 | encode_sequence_maxsz + \ |
1da177e4 | 617 | encode_putfh_maxsz + \ |
fa178f29 TM |
618 | encode_delegreturn_maxsz + \ |
619 | encode_getattr_maxsz) | |
1da177e4 | 620 | #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 621 | decode_sequence_maxsz + \ |
fa178f29 TM |
622 | decode_delegreturn_maxsz + \ |
623 | decode_getattr_maxsz) | |
029d105e | 624 | #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 625 | encode_sequence_maxsz + \ |
029d105e | 626 | encode_putfh_maxsz + \ |
9104a55d | 627 | encode_getacl_maxsz) |
029d105e | 628 | #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 629 | decode_sequence_maxsz + \ |
029d105e | 630 | decode_putfh_maxsz + \ |
9104a55d | 631 | decode_getacl_maxsz) |
23ec6965 | 632 | #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 633 | encode_sequence_maxsz + \ |
23ec6965 | 634 | encode_putfh_maxsz + \ |
9104a55d | 635 | encode_setacl_maxsz) |
23ec6965 | 636 | #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 637 | decode_sequence_maxsz + \ |
23ec6965 | 638 | decode_putfh_maxsz + \ |
9104a55d | 639 | decode_setacl_maxsz) |
683b57b4 TM |
640 | #define NFS4_enc_fs_locations_sz \ |
641 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 642 | encode_sequence_maxsz + \ |
683b57b4 | 643 | encode_putfh_maxsz + \ |
e6889620 TM |
644 | encode_lookup_maxsz + \ |
645 | encode_fs_locations_maxsz) | |
683b57b4 TM |
646 | #define NFS4_dec_fs_locations_sz \ |
647 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 648 | decode_sequence_maxsz + \ |
683b57b4 | 649 | decode_putfh_maxsz + \ |
e6889620 TM |
650 | decode_lookup_maxsz + \ |
651 | decode_fs_locations_maxsz) | |
99fe60d0 BH |
652 | #if defined(CONFIG_NFS_V4_1) |
653 | #define NFS4_enc_exchange_id_sz \ | |
654 | (compound_encode_hdr_maxsz + \ | |
655 | encode_exchange_id_maxsz) | |
656 | #define NFS4_dec_exchange_id_sz \ | |
657 | (compound_decode_hdr_maxsz + \ | |
658 | decode_exchange_id_maxsz) | |
fc931582 AA |
659 | #define NFS4_enc_create_session_sz \ |
660 | (compound_encode_hdr_maxsz + \ | |
661 | encode_create_session_maxsz) | |
662 | #define NFS4_dec_create_session_sz \ | |
663 | (compound_decode_hdr_maxsz + \ | |
664 | decode_create_session_maxsz) | |
0f3e66c6 AA |
665 | #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ |
666 | encode_destroy_session_maxsz) | |
667 | #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ | |
668 | decode_destroy_session_maxsz) | |
fc01cea9 AA |
669 | #define NFS4_enc_sequence_sz \ |
670 | (compound_decode_hdr_maxsz + \ | |
671 | encode_sequence_maxsz) | |
672 | #define NFS4_dec_sequence_sz \ | |
673 | (compound_decode_hdr_maxsz + \ | |
674 | decode_sequence_maxsz) | |
2050f0cc AA |
675 | #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ |
676 | encode_sequence_maxsz + \ | |
677 | encode_putrootfh_maxsz + \ | |
678 | encode_fsinfo_maxsz) | |
679 | #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ | |
680 | decode_sequence_maxsz + \ | |
681 | decode_putrootfh_maxsz + \ | |
682 | decode_fsinfo_maxsz) | |
18019753 RL |
683 | #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ |
684 | encode_sequence_maxsz + \ | |
685 | encode_reclaim_complete_maxsz) | |
686 | #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ | |
687 | decode_sequence_maxsz + \ | |
688 | decode_reclaim_complete_maxsz) | |
2449ea2e AB |
689 | |
690 | const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + | |
691 | compound_encode_hdr_maxsz + | |
692 | encode_sequence_maxsz + | |
693 | encode_putfh_maxsz + | |
694 | encode_getattr_maxsz) * | |
695 | XDR_UNIT); | |
696 | ||
697 | const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + | |
698 | compound_decode_hdr_maxsz + | |
699 | decode_sequence_maxsz + | |
700 | decode_putfh_maxsz) * | |
701 | XDR_UNIT); | |
99fe60d0 | 702 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 | 703 | |
bca79478 TM |
704 | static const umode_t nfs_type2fmt[] = { |
705 | [NF4BAD] = 0, | |
706 | [NF4REG] = S_IFREG, | |
707 | [NF4DIR] = S_IFDIR, | |
708 | [NF4BLK] = S_IFBLK, | |
709 | [NF4CHR] = S_IFCHR, | |
710 | [NF4LNK] = S_IFLNK, | |
711 | [NF4SOCK] = S_IFSOCK, | |
712 | [NF4FIFO] = S_IFIFO, | |
713 | [NF4ATTRDIR] = 0, | |
714 | [NF4NAMEDATTR] = 0, | |
1da177e4 LT |
715 | }; |
716 | ||
717 | struct compound_hdr { | |
718 | int32_t status; | |
719 | uint32_t nops; | |
d017931c | 720 | __be32 * nops_p; |
1da177e4 LT |
721 | uint32_t taglen; |
722 | char * tag; | |
0c4e8c18 | 723 | uint32_t replen; /* expected reply words */ |
66cc0429 | 724 | u32 minorversion; |
1da177e4 LT |
725 | }; |
726 | ||
13c65ce9 BH |
727 | static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) |
728 | { | |
729 | __be32 *p = xdr_reserve_space(xdr, nbytes); | |
730 | BUG_ON(!p); | |
731 | return p; | |
732 | } | |
1da177e4 LT |
733 | |
734 | static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) | |
735 | { | |
8687b63a | 736 | __be32 *p; |
1da177e4 LT |
737 | |
738 | p = xdr_reserve_space(xdr, 4 + len); | |
739 | BUG_ON(p == NULL); | |
740 | xdr_encode_opaque(p, str, len); | |
741 | } | |
742 | ||
0c4e8c18 BH |
743 | static void encode_compound_hdr(struct xdr_stream *xdr, |
744 | struct rpc_rqst *req, | |
745 | struct compound_hdr *hdr) | |
1da177e4 | 746 | { |
8687b63a | 747 | __be32 *p; |
0c4e8c18 BH |
748 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
749 | ||
750 | /* initialize running count of expected bytes in reply. | |
751 | * NOTE: the replied tag SHOULD be the same is the one sent, | |
752 | * but this is not required as a MUST for the server to do so. */ | |
753 | hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; | |
1da177e4 LT |
754 | |
755 | dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); | |
756 | BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); | |
811652bd BH |
757 | p = reserve_space(xdr, 4 + hdr->taglen + 8); |
758 | p = xdr_encode_opaque(p, hdr->tag, hdr->taglen); | |
e75bc1c8 | 759 | *p++ = cpu_to_be32(hdr->minorversion); |
d017931c | 760 | hdr->nops_p = p; |
34558513 | 761 | *p = cpu_to_be32(hdr->nops); |
d017931c AA |
762 | } |
763 | ||
764 | static void encode_nops(struct compound_hdr *hdr) | |
765 | { | |
fc931582 | 766 | BUG_ON(hdr->nops > NFS4_MAX_OPS); |
d017931c | 767 | *hdr->nops_p = htonl(hdr->nops); |
1da177e4 LT |
768 | } |
769 | ||
770 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) | |
771 | { | |
8687b63a | 772 | __be32 *p; |
1da177e4 LT |
773 | |
774 | p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); | |
775 | BUG_ON(p == NULL); | |
776 | xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); | |
777 | } | |
778 | ||
cf8cdbe5 | 779 | static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) |
1da177e4 LT |
780 | { |
781 | char owner_name[IDMAP_NAMESZ]; | |
782 | char owner_group[IDMAP_NAMESZ]; | |
783 | int owner_namelen = 0; | |
784 | int owner_grouplen = 0; | |
8687b63a AV |
785 | __be32 *p; |
786 | __be32 *q; | |
1da177e4 LT |
787 | int len; |
788 | uint32_t bmval0 = 0; | |
789 | uint32_t bmval1 = 0; | |
1da177e4 LT |
790 | |
791 | /* | |
792 | * We reserve enough space to write the entire attribute buffer at once. | |
793 | * In the worst-case, this would be | |
794 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) | |
795 | * = 36 bytes, plus any contribution from variable-length fields | |
23ec6965 | 796 | * such as owner/group. |
1da177e4 LT |
797 | */ |
798 | len = 16; | |
799 | ||
800 | /* Sigh */ | |
801 | if (iap->ia_valid & ATTR_SIZE) | |
802 | len += 8; | |
803 | if (iap->ia_valid & ATTR_MODE) | |
804 | len += 4; | |
805 | if (iap->ia_valid & ATTR_UID) { | |
7539bbab | 806 | owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); |
1da177e4 | 807 | if (owner_namelen < 0) { |
fe82a183 CL |
808 | dprintk("nfs: couldn't resolve uid %d to string\n", |
809 | iap->ia_uid); | |
1da177e4 LT |
810 | /* XXX */ |
811 | strcpy(owner_name, "nobody"); | |
812 | owner_namelen = sizeof("nobody") - 1; | |
813 | /* goto out; */ | |
814 | } | |
815 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); | |
816 | } | |
817 | if (iap->ia_valid & ATTR_GID) { | |
7539bbab | 818 | owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); |
1da177e4 | 819 | if (owner_grouplen < 0) { |
fe82a183 CL |
820 | dprintk("nfs: couldn't resolve gid %d to string\n", |
821 | iap->ia_gid); | |
1da177e4 LT |
822 | strcpy(owner_group, "nobody"); |
823 | owner_grouplen = sizeof("nobody") - 1; | |
824 | /* goto out; */ | |
825 | } | |
826 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); | |
827 | } | |
828 | if (iap->ia_valid & ATTR_ATIME_SET) | |
829 | len += 16; | |
830 | else if (iap->ia_valid & ATTR_ATIME) | |
831 | len += 4; | |
832 | if (iap->ia_valid & ATTR_MTIME_SET) | |
833 | len += 16; | |
834 | else if (iap->ia_valid & ATTR_MTIME) | |
835 | len += 4; | |
13c65ce9 | 836 | p = reserve_space(xdr, len); |
1da177e4 LT |
837 | |
838 | /* | |
839 | * We write the bitmap length now, but leave the bitmap and the attribute | |
840 | * buffer length to be backfilled at the end of this routine. | |
841 | */ | |
e75bc1c8 | 842 | *p++ = cpu_to_be32(2); |
1da177e4 LT |
843 | q = p; |
844 | p += 3; | |
845 | ||
846 | if (iap->ia_valid & ATTR_SIZE) { | |
847 | bmval0 |= FATTR4_WORD0_SIZE; | |
b95be5a9 | 848 | p = xdr_encode_hyper(p, iap->ia_size); |
1da177e4 LT |
849 | } |
850 | if (iap->ia_valid & ATTR_MODE) { | |
851 | bmval1 |= FATTR4_WORD1_MODE; | |
e75bc1c8 | 852 | *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); |
1da177e4 LT |
853 | } |
854 | if (iap->ia_valid & ATTR_UID) { | |
855 | bmval1 |= FATTR4_WORD1_OWNER; | |
811652bd | 856 | p = xdr_encode_opaque(p, owner_name, owner_namelen); |
1da177e4 LT |
857 | } |
858 | if (iap->ia_valid & ATTR_GID) { | |
859 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; | |
811652bd | 860 | p = xdr_encode_opaque(p, owner_group, owner_grouplen); |
1da177e4 LT |
861 | } |
862 | if (iap->ia_valid & ATTR_ATIME_SET) { | |
863 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
e75bc1c8 BH |
864 | *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); |
865 | *p++ = cpu_to_be32(0); | |
866 | *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); | |
867 | *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); | |
1da177e4 LT |
868 | } |
869 | else if (iap->ia_valid & ATTR_ATIME) { | |
870 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
e75bc1c8 | 871 | *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); |
1da177e4 LT |
872 | } |
873 | if (iap->ia_valid & ATTR_MTIME_SET) { | |
874 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
e75bc1c8 BH |
875 | *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); |
876 | *p++ = cpu_to_be32(0); | |
877 | *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); | |
878 | *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); | |
1da177e4 LT |
879 | } |
880 | else if (iap->ia_valid & ATTR_MTIME) { | |
881 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
e75bc1c8 | 882 | *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); |
1da177e4 | 883 | } |
6c0195a4 | 884 | |
1da177e4 LT |
885 | /* |
886 | * Now we backfill the bitmap and the attribute buffer length. | |
887 | */ | |
888 | if (len != ((char *)p - (char *)q) + 4) { | |
fe82a183 | 889 | printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", |
1da177e4 LT |
890 | len, ((char *)p - (char *)q) + 4); |
891 | BUG(); | |
892 | } | |
893 | len = (char *)p - (char *)q - 12; | |
894 | *q++ = htonl(bmval0); | |
895 | *q++ = htonl(bmval1); | |
34558513 | 896 | *q = htonl(len); |
1da177e4 | 897 | |
1da177e4 | 898 | /* out: */ |
1da177e4 LT |
899 | } |
900 | ||
cf8cdbe5 | 901 | static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) |
1da177e4 | 902 | { |
8687b63a | 903 | __be32 *p; |
1da177e4 | 904 | |
13c65ce9 | 905 | p = reserve_space(xdr, 8); |
e75bc1c8 | 906 | *p++ = cpu_to_be32(OP_ACCESS); |
34558513 | 907 | *p = cpu_to_be32(access); |
d017931c | 908 | hdr->nops++; |
dadf0c27 | 909 | hdr->replen += decode_access_maxsz; |
1da177e4 LT |
910 | } |
911 | ||
cf8cdbe5 | 912 | static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 913 | { |
8687b63a | 914 | __be32 *p; |
1da177e4 | 915 | |
13c65ce9 | 916 | p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); |
e75bc1c8 BH |
917 | *p++ = cpu_to_be32(OP_CLOSE); |
918 | *p++ = cpu_to_be32(arg->seqid->sequence->counter); | |
34558513 | 919 | xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
d017931c | 920 | hdr->nops++; |
dadf0c27 | 921 | hdr->replen += decode_close_maxsz; |
1da177e4 LT |
922 | } |
923 | ||
cf8cdbe5 | 924 | static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 925 | { |
8687b63a | 926 | __be32 *p; |
6c0195a4 | 927 | |
13c65ce9 | 928 | p = reserve_space(xdr, 16); |
e75bc1c8 | 929 | *p++ = cpu_to_be32(OP_COMMIT); |
b95be5a9 | 930 | p = xdr_encode_hyper(p, args->offset); |
34558513 | 931 | *p = cpu_to_be32(args->count); |
d017931c | 932 | hdr->nops++; |
dadf0c27 | 933 | hdr->replen += decode_commit_maxsz; |
1da177e4 LT |
934 | } |
935 | ||
cf8cdbe5 | 936 | static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) |
1da177e4 | 937 | { |
8687b63a | 938 | __be32 *p; |
6c0195a4 | 939 | |
13c65ce9 | 940 | p = reserve_space(xdr, 8); |
e75bc1c8 | 941 | *p++ = cpu_to_be32(OP_CREATE); |
34558513 | 942 | *p = cpu_to_be32(create->ftype); |
1da177e4 LT |
943 | |
944 | switch (create->ftype) { | |
945 | case NF4LNK: | |
13c65ce9 | 946 | p = reserve_space(xdr, 4); |
34558513 | 947 | *p = cpu_to_be32(create->u.symlink.len); |
94a6d753 | 948 | xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); |
1da177e4 LT |
949 | break; |
950 | ||
951 | case NF4BLK: case NF4CHR: | |
13c65ce9 | 952 | p = reserve_space(xdr, 8); |
e75bc1c8 | 953 | *p++ = cpu_to_be32(create->u.device.specdata1); |
34558513 | 954 | *p = cpu_to_be32(create->u.device.specdata2); |
1da177e4 LT |
955 | break; |
956 | ||
957 | default: | |
958 | break; | |
959 | } | |
960 | ||
811652bd | 961 | encode_string(xdr, create->name->len, create->name->name); |
d017931c | 962 | hdr->nops++; |
dadf0c27 | 963 | hdr->replen += decode_create_maxsz; |
1da177e4 | 964 | |
cf8cdbe5 | 965 | encode_attrs(xdr, create->attrs, create->server); |
1da177e4 LT |
966 | } |
967 | ||
cf8cdbe5 | 968 | static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) |
1da177e4 | 969 | { |
05d564fe | 970 | __be32 *p; |
1da177e4 | 971 | |
13c65ce9 | 972 | p = reserve_space(xdr, 12); |
e75bc1c8 BH |
973 | *p++ = cpu_to_be32(OP_GETATTR); |
974 | *p++ = cpu_to_be32(1); | |
34558513 | 975 | *p = cpu_to_be32(bitmap); |
d017931c | 976 | hdr->nops++; |
dadf0c27 | 977 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
978 | } |
979 | ||
cf8cdbe5 | 980 | static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) |
1da177e4 | 981 | { |
05d564fe | 982 | __be32 *p; |
1da177e4 | 983 | |
13c65ce9 | 984 | p = reserve_space(xdr, 16); |
e75bc1c8 BH |
985 | *p++ = cpu_to_be32(OP_GETATTR); |
986 | *p++ = cpu_to_be32(2); | |
987 | *p++ = cpu_to_be32(bm0); | |
34558513 | 988 | *p = cpu_to_be32(bm1); |
d017931c | 989 | hdr->nops++; |
dadf0c27 | 990 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
991 | } |
992 | ||
cf8cdbe5 | 993 | static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 994 | { |
cf8cdbe5 AA |
995 | encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], |
996 | bitmask[1] & nfs4_fattr_bitmap[1], hdr); | |
1da177e4 LT |
997 | } |
998 | ||
cf8cdbe5 | 999 | static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 1000 | { |
cf8cdbe5 AA |
1001 | encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
1002 | bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); | |
1da177e4 LT |
1003 | } |
1004 | ||
cf8cdbe5 | 1005 | static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
830b8e33 | 1006 | { |
cf8cdbe5 AA |
1007 | encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], |
1008 | bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); | |
830b8e33 MN |
1009 | } |
1010 | ||
cf8cdbe5 | 1011 | static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1012 | { |
8687b63a | 1013 | __be32 *p; |
1da177e4 | 1014 | |
13c65ce9 | 1015 | p = reserve_space(xdr, 4); |
34558513 | 1016 | *p = cpu_to_be32(OP_GETFH); |
d017931c | 1017 | hdr->nops++; |
dadf0c27 | 1018 | hdr->replen += decode_getfh_maxsz; |
1da177e4 LT |
1019 | } |
1020 | ||
cf8cdbe5 | 1021 | static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1022 | { |
8687b63a | 1023 | __be32 *p; |
1da177e4 | 1024 | |
13c65ce9 | 1025 | p = reserve_space(xdr, 8 + name->len); |
e75bc1c8 | 1026 | *p++ = cpu_to_be32(OP_LINK); |
811652bd | 1027 | xdr_encode_opaque(p, name->name, name->len); |
d017931c | 1028 | hdr->nops++; |
dadf0c27 | 1029 | hdr->replen += decode_link_maxsz; |
1da177e4 LT |
1030 | } |
1031 | ||
911d1aaf TM |
1032 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
1033 | { | |
1034 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) | |
1035 | return block ? NFS4_READW_LT : NFS4_READ_LT; | |
1036 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; | |
1037 | } | |
1038 | ||
1039 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) | |
1040 | { | |
1041 | if (fl->fl_end == OFFSET_MAX) | |
1042 | return ~(uint64_t)0; | |
1043 | return fl->fl_end - fl->fl_start + 1; | |
1044 | } | |
1045 | ||
1da177e4 LT |
1046 | /* |
1047 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 | |
1048 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 | |
1049 | */ | |
cf8cdbe5 | 1050 | static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) |
1da177e4 | 1051 | { |
8687b63a | 1052 | __be32 *p; |
1da177e4 | 1053 | |
13c65ce9 | 1054 | p = reserve_space(xdr, 32); |
e75bc1c8 BH |
1055 | *p++ = cpu_to_be32(OP_LOCK); |
1056 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); | |
1057 | *p++ = cpu_to_be32(args->reclaim); | |
b95be5a9 BH |
1058 | p = xdr_encode_hyper(p, args->fl->fl_start); |
1059 | p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); | |
34558513 | 1060 | *p = cpu_to_be32(args->new_lock_owner); |
911d1aaf | 1061 | if (args->new_lock_owner){ |
13c65ce9 | 1062 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+32); |
e75bc1c8 | 1063 | *p++ = cpu_to_be32(args->open_seqid->sequence->counter); |
93f0cf25 | 1064 | p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); |
e75bc1c8 | 1065 | *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); |
b95be5a9 | 1066 | p = xdr_encode_hyper(p, args->lock_owner.clientid); |
e75bc1c8 | 1067 | *p++ = cpu_to_be32(16); |
93f0cf25 | 1068 | p = xdr_encode_opaque_fixed(p, "lock id:", 8); |
34558513 | 1069 | xdr_encode_hyper(p, args->lock_owner.id); |
1da177e4 LT |
1070 | } |
1071 | else { | |
13c65ce9 | 1072 | p = reserve_space(xdr, NFS4_STATEID_SIZE+4); |
93f0cf25 | 1073 | p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1074 | *p = cpu_to_be32(args->lock_seqid->sequence->counter); |
1da177e4 | 1075 | } |
d017931c | 1076 | hdr->nops++; |
dadf0c27 | 1077 | hdr->replen += decode_lock_maxsz; |
1da177e4 LT |
1078 | } |
1079 | ||
cf8cdbe5 | 1080 | static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) |
1da177e4 | 1081 | { |
8687b63a | 1082 | __be32 *p; |
1da177e4 | 1083 | |
13c65ce9 | 1084 | p = reserve_space(xdr, 52); |
e75bc1c8 BH |
1085 | *p++ = cpu_to_be32(OP_LOCKT); |
1086 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); | |
b95be5a9 BH |
1087 | p = xdr_encode_hyper(p, args->fl->fl_start); |
1088 | p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); | |
1089 | p = xdr_encode_hyper(p, args->lock_owner.clientid); | |
e75bc1c8 | 1090 | *p++ = cpu_to_be32(16); |
93f0cf25 | 1091 | p = xdr_encode_opaque_fixed(p, "lock id:", 8); |
34558513 | 1092 | xdr_encode_hyper(p, args->lock_owner.id); |
d017931c | 1093 | hdr->nops++; |
dadf0c27 | 1094 | hdr->replen += decode_lockt_maxsz; |
1da177e4 LT |
1095 | } |
1096 | ||
cf8cdbe5 | 1097 | static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) |
1da177e4 | 1098 | { |
8687b63a | 1099 | __be32 *p; |
1da177e4 | 1100 | |
13c65ce9 | 1101 | p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); |
e75bc1c8 BH |
1102 | *p++ = cpu_to_be32(OP_LOCKU); |
1103 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); | |
1104 | *p++ = cpu_to_be32(args->seqid->sequence->counter); | |
93f0cf25 | 1105 | p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); |
b95be5a9 | 1106 | p = xdr_encode_hyper(p, args->fl->fl_start); |
34558513 | 1107 | xdr_encode_hyper(p, nfs4_lock_length(args->fl)); |
d017931c | 1108 | hdr->nops++; |
dadf0c27 | 1109 | hdr->replen += decode_locku_maxsz; |
1da177e4 LT |
1110 | } |
1111 | ||
cf8cdbe5 | 1112 | static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 LT |
1113 | { |
1114 | int len = name->len; | |
8687b63a | 1115 | __be32 *p; |
1da177e4 | 1116 | |
13c65ce9 | 1117 | p = reserve_space(xdr, 8 + len); |
e75bc1c8 | 1118 | *p++ = cpu_to_be32(OP_LOOKUP); |
811652bd | 1119 | xdr_encode_opaque(p, name->name, len); |
d017931c | 1120 | hdr->nops++; |
dadf0c27 | 1121 | hdr->replen += decode_lookup_maxsz; |
1da177e4 LT |
1122 | } |
1123 | ||
dc0b027d | 1124 | static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) |
1da177e4 | 1125 | { |
8687b63a | 1126 | __be32 *p; |
1da177e4 | 1127 | |
13c65ce9 | 1128 | p = reserve_space(xdr, 8); |
dc0b027d | 1129 | switch (fmode & (FMODE_READ|FMODE_WRITE)) { |
05d564fe | 1130 | case FMODE_READ: |
e75bc1c8 | 1131 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); |
05d564fe AA |
1132 | break; |
1133 | case FMODE_WRITE: | |
e75bc1c8 | 1134 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); |
05d564fe AA |
1135 | break; |
1136 | case FMODE_READ|FMODE_WRITE: | |
e75bc1c8 | 1137 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); |
05d564fe AA |
1138 | break; |
1139 | default: | |
e75bc1c8 | 1140 | *p++ = cpu_to_be32(0); |
1da177e4 | 1141 | } |
34558513 | 1142 | *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ |
1da177e4 LT |
1143 | } |
1144 | ||
1145 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1146 | { | |
8687b63a | 1147 | __be32 *p; |
1da177e4 LT |
1148 | /* |
1149 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, | |
1150 | * owner 4 = 32 | |
1151 | */ | |
13c65ce9 | 1152 | p = reserve_space(xdr, 8); |
e75bc1c8 | 1153 | *p++ = cpu_to_be32(OP_OPEN); |
34558513 | 1154 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
dc0b027d | 1155 | encode_share_access(xdr, arg->fmode); |
13c65ce9 | 1156 | p = reserve_space(xdr, 28); |
b95be5a9 | 1157 | p = xdr_encode_hyper(p, arg->clientid); |
e75bc1c8 | 1158 | *p++ = cpu_to_be32(16); |
93f0cf25 | 1159 | p = xdr_encode_opaque_fixed(p, "open id:", 8); |
34558513 | 1160 | xdr_encode_hyper(p, arg->id); |
1da177e4 LT |
1161 | } |
1162 | ||
1163 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1164 | { | |
8687b63a | 1165 | __be32 *p; |
4882ef72 | 1166 | struct nfs_client *clp; |
1da177e4 | 1167 | |
13c65ce9 | 1168 | p = reserve_space(xdr, 4); |
1da177e4 | 1169 | switch(arg->open_flags & O_EXCL) { |
05d564fe | 1170 | case 0: |
34558513 | 1171 | *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); |
05d564fe AA |
1172 | encode_attrs(xdr, arg->u.attrs, arg->server); |
1173 | break; | |
1174 | default: | |
4882ef72 AB |
1175 | clp = arg->server->nfs_client; |
1176 | if (clp->cl_minorversion > 0) { | |
1177 | if (nfs4_has_persistent_session(clp)) { | |
1178 | *p = cpu_to_be32(NFS4_CREATE_GUARDED); | |
1179 | encode_attrs(xdr, arg->u.attrs, arg->server); | |
1180 | } else { | |
1181 | struct iattr dummy; | |
1182 | ||
1183 | *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); | |
1184 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1185 | dummy.ia_valid = 0; | |
1186 | encode_attrs(xdr, &dummy, arg->server); | |
1187 | } | |
1188 | } else { | |
1189 | *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); | |
1190 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1191 | } | |
1da177e4 LT |
1192 | } |
1193 | } | |
1194 | ||
1195 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1196 | { | |
8687b63a | 1197 | __be32 *p; |
1da177e4 | 1198 | |
13c65ce9 | 1199 | p = reserve_space(xdr, 4); |
1da177e4 | 1200 | switch (arg->open_flags & O_CREAT) { |
05d564fe | 1201 | case 0: |
34558513 | 1202 | *p = cpu_to_be32(NFS4_OPEN_NOCREATE); |
05d564fe AA |
1203 | break; |
1204 | default: | |
1205 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); | |
34558513 | 1206 | *p = cpu_to_be32(NFS4_OPEN_CREATE); |
05d564fe | 1207 | encode_createmode(xdr, arg); |
1da177e4 LT |
1208 | } |
1209 | } | |
1210 | ||
bd7bf9d5 | 1211 | static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) |
1da177e4 | 1212 | { |
8687b63a | 1213 | __be32 *p; |
1da177e4 | 1214 | |
13c65ce9 | 1215 | p = reserve_space(xdr, 4); |
1da177e4 | 1216 | switch (delegation_type) { |
05d564fe | 1217 | case 0: |
34558513 | 1218 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); |
05d564fe AA |
1219 | break; |
1220 | case FMODE_READ: | |
34558513 | 1221 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); |
05d564fe AA |
1222 | break; |
1223 | case FMODE_WRITE|FMODE_READ: | |
34558513 | 1224 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); |
05d564fe AA |
1225 | break; |
1226 | default: | |
1227 | BUG(); | |
1da177e4 LT |
1228 | } |
1229 | } | |
1230 | ||
1231 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) | |
1232 | { | |
8687b63a | 1233 | __be32 *p; |
1da177e4 | 1234 | |
13c65ce9 | 1235 | p = reserve_space(xdr, 4); |
34558513 | 1236 | *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); |
1da177e4 LT |
1237 | encode_string(xdr, name->len, name->name); |
1238 | } | |
1239 | ||
bd7bf9d5 | 1240 | static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) |
1da177e4 | 1241 | { |
8687b63a | 1242 | __be32 *p; |
1da177e4 | 1243 | |
13c65ce9 | 1244 | p = reserve_space(xdr, 4); |
34558513 | 1245 | *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); |
1da177e4 LT |
1246 | encode_delegation_type(xdr, type); |
1247 | } | |
1248 | ||
1249 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) | |
1250 | { | |
8687b63a | 1251 | __be32 *p; |
1da177e4 | 1252 | |
13c65ce9 | 1253 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1254 | *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
34558513 | 1255 | xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1256 | encode_string(xdr, name->len, name->name); |
1257 | } | |
1258 | ||
cf8cdbe5 | 1259 | static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) |
1da177e4 LT |
1260 | { |
1261 | encode_openhdr(xdr, arg); | |
1262 | encode_opentype(xdr, arg); | |
1263 | switch (arg->claim) { | |
05d564fe AA |
1264 | case NFS4_OPEN_CLAIM_NULL: |
1265 | encode_claim_null(xdr, arg->name); | |
1266 | break; | |
1267 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
1268 | encode_claim_previous(xdr, arg->u.delegation_type); | |
1269 | break; | |
1270 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: | |
1271 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); | |
1272 | break; | |
1273 | default: | |
1274 | BUG(); | |
1da177e4 | 1275 | } |
d017931c | 1276 | hdr->nops++; |
dadf0c27 | 1277 | hdr->replen += decode_open_maxsz; |
1da177e4 LT |
1278 | } |
1279 | ||
cf8cdbe5 | 1280 | static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1281 | { |
8687b63a | 1282 | __be32 *p; |
1da177e4 | 1283 | |
13c65ce9 | 1284 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); |
e75bc1c8 | 1285 | *p++ = cpu_to_be32(OP_OPEN_CONFIRM); |
93f0cf25 | 1286 | p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1287 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
d017931c | 1288 | hdr->nops++; |
dadf0c27 | 1289 | hdr->replen += decode_open_confirm_maxsz; |
1da177e4 LT |
1290 | } |
1291 | ||
cf8cdbe5 | 1292 | static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1293 | { |
8687b63a | 1294 | __be32 *p; |
1da177e4 | 1295 | |
13c65ce9 | 1296 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); |
e75bc1c8 | 1297 | *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); |
93f0cf25 | 1298 | p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1299 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
dc0b027d | 1300 | encode_share_access(xdr, arg->fmode); |
d017931c | 1301 | hdr->nops++; |
dadf0c27 | 1302 | hdr->replen += decode_open_downgrade_maxsz; |
1da177e4 LT |
1303 | } |
1304 | ||
cf8cdbe5 | 1305 | static void |
d017931c | 1306 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) |
1da177e4 LT |
1307 | { |
1308 | int len = fh->size; | |
8687b63a | 1309 | __be32 *p; |
1da177e4 | 1310 | |
13c65ce9 | 1311 | p = reserve_space(xdr, 8 + len); |
e75bc1c8 | 1312 | *p++ = cpu_to_be32(OP_PUTFH); |
811652bd | 1313 | xdr_encode_opaque(p, fh->data, len); |
d017931c | 1314 | hdr->nops++; |
dadf0c27 | 1315 | hdr->replen += decode_putfh_maxsz; |
1da177e4 LT |
1316 | } |
1317 | ||
cf8cdbe5 | 1318 | static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1319 | { |
05d564fe | 1320 | __be32 *p; |
6c0195a4 | 1321 | |
13c65ce9 | 1322 | p = reserve_space(xdr, 4); |
34558513 | 1323 | *p = cpu_to_be32(OP_PUTROOTFH); |
d017931c | 1324 | hdr->nops++; |
dadf0c27 | 1325 | hdr->replen += decode_putrootfh_maxsz; |
1da177e4 LT |
1326 | } |
1327 | ||
1328 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) | |
1329 | { | |
1da177e4 | 1330 | nfs4_stateid stateid; |
8687b63a | 1331 | __be32 *p; |
1da177e4 | 1332 | |
13c65ce9 | 1333 | p = reserve_space(xdr, NFS4_STATEID_SIZE); |
1da177e4 LT |
1334 | if (ctx->state != NULL) { |
1335 | nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); | |
34558513 | 1336 | xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); |
1da177e4 | 1337 | } else |
34558513 | 1338 | xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1339 | } |
1340 | ||
cf8cdbe5 | 1341 | static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) |
1da177e4 | 1342 | { |
8687b63a | 1343 | __be32 *p; |
1da177e4 | 1344 | |
13c65ce9 | 1345 | p = reserve_space(xdr, 4); |
34558513 | 1346 | *p = cpu_to_be32(OP_READ); |
1da177e4 LT |
1347 | |
1348 | encode_stateid(xdr, args->context); | |
1349 | ||
13c65ce9 | 1350 | p = reserve_space(xdr, 12); |
b95be5a9 | 1351 | p = xdr_encode_hyper(p, args->offset); |
34558513 | 1352 | *p = cpu_to_be32(args->count); |
d017931c | 1353 | hdr->nops++; |
dadf0c27 | 1354 | hdr->replen += decode_read_maxsz; |
1da177e4 LT |
1355 | } |
1356 | ||
cf8cdbe5 | 1357 | static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1358 | { |
97d312d0 MN |
1359 | uint32_t attrs[2] = { |
1360 | FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, | |
1361 | FATTR4_WORD1_MOUNTED_ON_FILEID, | |
1362 | }; | |
8687b63a | 1363 | __be32 *p; |
1da177e4 | 1364 | |
13c65ce9 | 1365 | p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); |
e75bc1c8 | 1366 | *p++ = cpu_to_be32(OP_READDIR); |
b95be5a9 | 1367 | p = xdr_encode_hyper(p, readdir->cookie); |
93f0cf25 | 1368 | p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); |
e75bc1c8 BH |
1369 | *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */ |
1370 | *p++ = cpu_to_be32(readdir->count); | |
1371 | *p++ = cpu_to_be32(2); | |
97d312d0 MN |
1372 | /* Switch to mounted_on_fileid if the server supports it */ |
1373 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) | |
1374 | attrs[0] &= ~FATTR4_WORD0_FILEID; | |
1375 | else | |
1376 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
e75bc1c8 | 1377 | *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); |
34558513 | 1378 | *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); |
d017931c | 1379 | hdr->nops++; |
dadf0c27 | 1380 | hdr->replen += decode_readdir_maxsz; |
44109241 FI |
1381 | dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", |
1382 | __func__, | |
eadf4598 TM |
1383 | (unsigned long long)readdir->cookie, |
1384 | ((u32 *)readdir->verifier.data)[0], | |
1385 | ((u32 *)readdir->verifier.data)[1], | |
1386 | attrs[0] & readdir->bitmask[0], | |
1387 | attrs[1] & readdir->bitmask[1]); | |
1da177e4 LT |
1388 | } |
1389 | ||
cf8cdbe5 | 1390 | static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1391 | { |
8687b63a | 1392 | __be32 *p; |
1da177e4 | 1393 | |
13c65ce9 | 1394 | p = reserve_space(xdr, 4); |
34558513 | 1395 | *p = cpu_to_be32(OP_READLINK); |
d017931c | 1396 | hdr->nops++; |
dadf0c27 | 1397 | hdr->replen += decode_readlink_maxsz; |
1da177e4 LT |
1398 | } |
1399 | ||
cf8cdbe5 | 1400 | static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1401 | { |
8687b63a | 1402 | __be32 *p; |
1da177e4 | 1403 | |
13c65ce9 | 1404 | p = reserve_space(xdr, 8 + name->len); |
e75bc1c8 | 1405 | *p++ = cpu_to_be32(OP_REMOVE); |
811652bd | 1406 | xdr_encode_opaque(p, name->name, name->len); |
d017931c | 1407 | hdr->nops++; |
dadf0c27 | 1408 | hdr->replen += decode_remove_maxsz; |
1da177e4 LT |
1409 | } |
1410 | ||
cf8cdbe5 | 1411 | static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) |
1da177e4 | 1412 | { |
8687b63a | 1413 | __be32 *p; |
1da177e4 | 1414 | |
811652bd BH |
1415 | p = reserve_space(xdr, 4); |
1416 | *p = cpu_to_be32(OP_RENAME); | |
1417 | encode_string(xdr, oldname->len, oldname->name); | |
1418 | encode_string(xdr, newname->len, newname->name); | |
d017931c | 1419 | hdr->nops++; |
dadf0c27 | 1420 | hdr->replen += decode_rename_maxsz; |
1da177e4 LT |
1421 | } |
1422 | ||
cf8cdbe5 | 1423 | static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) |
1da177e4 | 1424 | { |
8687b63a | 1425 | __be32 *p; |
1da177e4 | 1426 | |
13c65ce9 | 1427 | p = reserve_space(xdr, 12); |
e75bc1c8 | 1428 | *p++ = cpu_to_be32(OP_RENEW); |
34558513 | 1429 | xdr_encode_hyper(p, client_stateid->cl_clientid); |
d017931c | 1430 | hdr->nops++; |
dadf0c27 | 1431 | hdr->replen += decode_renew_maxsz; |
1da177e4 LT |
1432 | } |
1433 | ||
cf8cdbe5 | 1434 | static void |
d017931c | 1435 | encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
56ae19f3 | 1436 | { |
8687b63a | 1437 | __be32 *p; |
56ae19f3 | 1438 | |
13c65ce9 | 1439 | p = reserve_space(xdr, 4); |
34558513 | 1440 | *p = cpu_to_be32(OP_RESTOREFH); |
d017931c | 1441 | hdr->nops++; |
dadf0c27 | 1442 | hdr->replen += decode_restorefh_maxsz; |
56ae19f3 TM |
1443 | } |
1444 | ||
23ec6965 | 1445 | static int |
d017931c | 1446 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) |
23ec6965 | 1447 | { |
8687b63a | 1448 | __be32 *p; |
23ec6965 | 1449 | |
13c65ce9 | 1450 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1451 | *p++ = cpu_to_be32(OP_SETATTR); |
34558513 | 1452 | xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); |
13c65ce9 | 1453 | p = reserve_space(xdr, 2*4); |
e75bc1c8 | 1454 | *p++ = cpu_to_be32(1); |
34558513 | 1455 | *p = cpu_to_be32(FATTR4_WORD0_ACL); |
23ec6965 BF |
1456 | if (arg->acl_len % 4) |
1457 | return -EINVAL; | |
13c65ce9 | 1458 | p = reserve_space(xdr, 4); |
34558513 | 1459 | *p = cpu_to_be32(arg->acl_len); |
23ec6965 | 1460 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); |
d017931c | 1461 | hdr->nops++; |
dadf0c27 | 1462 | hdr->replen += decode_setacl_maxsz; |
23ec6965 BF |
1463 | return 0; |
1464 | } | |
1465 | ||
cf8cdbe5 | 1466 | static void |
d017931c | 1467 | encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1468 | { |
8687b63a | 1469 | __be32 *p; |
1da177e4 | 1470 | |
13c65ce9 | 1471 | p = reserve_space(xdr, 4); |
34558513 | 1472 | *p = cpu_to_be32(OP_SAVEFH); |
d017931c | 1473 | hdr->nops++; |
dadf0c27 | 1474 | hdr->replen += decode_savefh_maxsz; |
1da177e4 LT |
1475 | } |
1476 | ||
cf8cdbe5 | 1477 | static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) |
1da177e4 | 1478 | { |
8687b63a | 1479 | __be32 *p; |
6c0195a4 | 1480 | |
13c65ce9 | 1481 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1482 | *p++ = cpu_to_be32(OP_SETATTR); |
34558513 | 1483 | xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); |
d017931c | 1484 | hdr->nops++; |
dadf0c27 | 1485 | hdr->replen += decode_setattr_maxsz; |
cf8cdbe5 | 1486 | encode_attrs(xdr, arg->iap, server); |
1da177e4 LT |
1487 | } |
1488 | ||
cf8cdbe5 | 1489 | static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) |
1da177e4 | 1490 | { |
8687b63a | 1491 | __be32 *p; |
1da177e4 | 1492 | |
13c65ce9 | 1493 | p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); |
e75bc1c8 | 1494 | *p++ = cpu_to_be32(OP_SETCLIENTID); |
34558513 | 1495 | xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1496 | |
1497 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); | |
13c65ce9 | 1498 | p = reserve_space(xdr, 4); |
34558513 | 1499 | *p = cpu_to_be32(setclientid->sc_prog); |
1da177e4 LT |
1500 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); |
1501 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); | |
13c65ce9 | 1502 | p = reserve_space(xdr, 4); |
34558513 | 1503 | *p = cpu_to_be32(setclientid->sc_cb_ident); |
d017931c | 1504 | hdr->nops++; |
dadf0c27 | 1505 | hdr->replen += decode_setclientid_maxsz; |
1da177e4 LT |
1506 | } |
1507 | ||
cf8cdbe5 | 1508 | static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) |
1da177e4 | 1509 | { |
05d564fe | 1510 | __be32 *p; |
1da177e4 | 1511 | |
13c65ce9 | 1512 | p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); |
e75bc1c8 | 1513 | *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); |
b95be5a9 | 1514 | p = xdr_encode_hyper(p, client_state->cl_clientid); |
34558513 | 1515 | xdr_encode_opaque_fixed(p, client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); |
d017931c | 1516 | hdr->nops++; |
dadf0c27 | 1517 | hdr->replen += decode_setclientid_confirm_maxsz; |
1da177e4 LT |
1518 | } |
1519 | ||
cf8cdbe5 | 1520 | static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 1521 | { |
8687b63a | 1522 | __be32 *p; |
1da177e4 | 1523 | |
13c65ce9 | 1524 | p = reserve_space(xdr, 4); |
34558513 | 1525 | *p = cpu_to_be32(OP_WRITE); |
1da177e4 LT |
1526 | |
1527 | encode_stateid(xdr, args->context); | |
1528 | ||
13c65ce9 | 1529 | p = reserve_space(xdr, 16); |
b95be5a9 | 1530 | p = xdr_encode_hyper(p, args->offset); |
e75bc1c8 | 1531 | *p++ = cpu_to_be32(args->stable); |
34558513 | 1532 | *p = cpu_to_be32(args->count); |
1da177e4 LT |
1533 | |
1534 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); | |
d017931c | 1535 | hdr->nops++; |
dadf0c27 | 1536 | hdr->replen += decode_write_maxsz; |
1da177e4 LT |
1537 | } |
1538 | ||
cf8cdbe5 | 1539 | static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) |
1da177e4 | 1540 | { |
8687b63a | 1541 | __be32 *p; |
1da177e4 | 1542 | |
13c65ce9 | 1543 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
1da177e4 | 1544 | |
e75bc1c8 | 1545 | *p++ = cpu_to_be32(OP_DELEGRETURN); |
34558513 | 1546 | xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); |
d017931c | 1547 | hdr->nops++; |
dadf0c27 | 1548 | hdr->replen += decode_delegreturn_maxsz; |
1da177e4 | 1549 | } |
9b7b9fcc | 1550 | |
99fe60d0 | 1551 | #if defined(CONFIG_NFS_V4_1) |
9b7b9fcc | 1552 | /* NFSv4.1 operations */ |
99fe60d0 BH |
1553 | static void encode_exchange_id(struct xdr_stream *xdr, |
1554 | struct nfs41_exchange_id_args *args, | |
1555 | struct compound_hdr *hdr) | |
1556 | { | |
1557 | __be32 *p; | |
1558 | ||
13c65ce9 | 1559 | p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); |
e75bc1c8 | 1560 | *p++ = cpu_to_be32(OP_EXCHANGE_ID); |
34558513 | 1561 | xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); |
99fe60d0 BH |
1562 | |
1563 | encode_string(xdr, args->id_len, args->id); | |
1564 | ||
13c65ce9 | 1565 | p = reserve_space(xdr, 12); |
e75bc1c8 BH |
1566 | *p++ = cpu_to_be32(args->flags); |
1567 | *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ | |
34558513 | 1568 | *p = cpu_to_be32(0); /* zero length implementation id array */ |
99fe60d0 BH |
1569 | hdr->nops++; |
1570 | hdr->replen += decode_exchange_id_maxsz; | |
1571 | } | |
fc931582 AA |
1572 | |
1573 | static void encode_create_session(struct xdr_stream *xdr, | |
1574 | struct nfs41_create_session_args *args, | |
1575 | struct compound_hdr *hdr) | |
1576 | { | |
1577 | __be32 *p; | |
1578 | char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; | |
1579 | uint32_t len; | |
1580 | struct nfs_client *clp = args->client; | |
1581 | ||
42edd698 BH |
1582 | len = scnprintf(machine_name, sizeof(machine_name), "%s", |
1583 | clp->cl_ipaddr); | |
fc931582 | 1584 | |
13c65ce9 | 1585 | p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); |
42edd698 | 1586 | *p++ = cpu_to_be32(OP_CREATE_SESSION); |
b95be5a9 | 1587 | p = xdr_encode_hyper(p, clp->cl_ex_clid); |
e75bc1c8 BH |
1588 | *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ |
1589 | *p++ = cpu_to_be32(args->flags); /*flags */ | |
fc931582 | 1590 | |
fc931582 | 1591 | /* Fore Channel */ |
e75bc1c8 BH |
1592 | *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ |
1593 | *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ | |
1594 | *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ | |
1595 | *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */ | |
1596 | *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ | |
1597 | *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ | |
1598 | *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ | |
fc931582 AA |
1599 | |
1600 | /* Back Channel */ | |
e75bc1c8 BH |
1601 | *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ |
1602 | *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ | |
1603 | *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ | |
1604 | *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ | |
1605 | *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ | |
1606 | *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ | |
1607 | *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ | |
fc931582 | 1608 | |
e75bc1c8 | 1609 | *p++ = cpu_to_be32(args->cb_program); /* cb_program */ |
e75bc1c8 | 1610 | *p++ = cpu_to_be32(1); |
e75bc1c8 | 1611 | *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ |
fc931582 AA |
1612 | |
1613 | /* authsys_parms rfc1831 */ | |
e75bc1c8 | 1614 | *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ |
811652bd | 1615 | p = xdr_encode_opaque(p, machine_name, len); |
e75bc1c8 BH |
1616 | *p++ = cpu_to_be32(0); /* UID */ |
1617 | *p++ = cpu_to_be32(0); /* GID */ | |
34558513 | 1618 | *p = cpu_to_be32(0); /* No more gids */ |
fc931582 AA |
1619 | hdr->nops++; |
1620 | hdr->replen += decode_create_session_maxsz; | |
1621 | } | |
0f3e66c6 AA |
1622 | |
1623 | static void encode_destroy_session(struct xdr_stream *xdr, | |
1624 | struct nfs4_session *session, | |
1625 | struct compound_hdr *hdr) | |
1626 | { | |
1627 | __be32 *p; | |
13c65ce9 | 1628 | p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); |
e75bc1c8 | 1629 | *p++ = cpu_to_be32(OP_DESTROY_SESSION); |
34558513 | 1630 | xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); |
0f3e66c6 AA |
1631 | hdr->nops++; |
1632 | hdr->replen += decode_destroy_session_maxsz; | |
1633 | } | |
18019753 RL |
1634 | |
1635 | static void encode_reclaim_complete(struct xdr_stream *xdr, | |
1636 | struct nfs41_reclaim_complete_args *args, | |
1637 | struct compound_hdr *hdr) | |
1638 | { | |
1639 | __be32 *p; | |
1640 | ||
1641 | p = reserve_space(xdr, 8); | |
1642 | *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); | |
1643 | *p++ = cpu_to_be32(args->one_fs); | |
1644 | hdr->nops++; | |
1645 | hdr->replen += decode_reclaim_complete_maxsz; | |
1646 | } | |
99fe60d0 BH |
1647 | #endif /* CONFIG_NFS_V4_1 */ |
1648 | ||
9b7b9fcc AA |
1649 | static void encode_sequence(struct xdr_stream *xdr, |
1650 | const struct nfs4_sequence_args *args, | |
1651 | struct compound_hdr *hdr) | |
1652 | { | |
1653 | #if defined(CONFIG_NFS_V4_1) | |
1654 | struct nfs4_session *session = args->sa_session; | |
fc01cea9 AA |
1655 | struct nfs4_slot_table *tp; |
1656 | struct nfs4_slot *slot; | |
1657 | __be32 *p; | |
9b7b9fcc AA |
1658 | |
1659 | if (!session) | |
1660 | return; | |
1661 | ||
fc01cea9 AA |
1662 | tp = &session->fc_slot_table; |
1663 | ||
1664 | WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); | |
1665 | slot = tp->slots + args->sa_slotid; | |
1666 | ||
13c65ce9 | 1667 | p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); |
e75bc1c8 | 1668 | *p++ = cpu_to_be32(OP_SEQUENCE); |
fc01cea9 AA |
1669 | |
1670 | /* | |
1671 | * Sessionid + seqid + slotid + max slotid + cache_this | |
1672 | */ | |
1673 | dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " | |
1674 | "max_slotid=%d cache_this=%d\n", | |
1675 | __func__, | |
1676 | ((u32 *)session->sess_id.data)[0], | |
1677 | ((u32 *)session->sess_id.data)[1], | |
1678 | ((u32 *)session->sess_id.data)[2], | |
1679 | ((u32 *)session->sess_id.data)[3], | |
1680 | slot->seq_nr, args->sa_slotid, | |
1681 | tp->highest_used_slotid, args->sa_cache_this); | |
93f0cf25 | 1682 | p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); |
e75bc1c8 BH |
1683 | *p++ = cpu_to_be32(slot->seq_nr); |
1684 | *p++ = cpu_to_be32(args->sa_slotid); | |
1685 | *p++ = cpu_to_be32(tp->highest_used_slotid); | |
34558513 | 1686 | *p = cpu_to_be32(args->sa_cache_this); |
9b7b9fcc AA |
1687 | hdr->nops++; |
1688 | hdr->replen += decode_sequence_maxsz; | |
1689 | #endif /* CONFIG_NFS_V4_1 */ | |
1690 | } | |
1691 | ||
1da177e4 LT |
1692 | /* |
1693 | * END OF "GENERIC" ENCODE ROUTINES. | |
1694 | */ | |
1695 | ||
66cc0429 BH |
1696 | static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) |
1697 | { | |
1698 | #if defined(CONFIG_NFS_V4_1) | |
1699 | if (args->sa_session) | |
1700 | return args->sa_session->clp->cl_minorversion; | |
1701 | #endif /* CONFIG_NFS_V4_1 */ | |
1702 | return 0; | |
1703 | } | |
1704 | ||
1da177e4 LT |
1705 | /* |
1706 | * Encode an ACCESS request | |
1707 | */ | |
8687b63a | 1708 | static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) |
1da177e4 LT |
1709 | { |
1710 | struct xdr_stream xdr; | |
1711 | struct compound_hdr hdr = { | |
66cc0429 | 1712 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1713 | }; |
1da177e4 LT |
1714 | |
1715 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1716 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1717 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1718 | encode_putfh(&xdr, args->fh, &hdr); |
1719 | encode_access(&xdr, args->access, &hdr); | |
1720 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1721 | encode_nops(&hdr); |
cf8cdbe5 | 1722 | return 0; |
1da177e4 LT |
1723 | } |
1724 | ||
1725 | /* | |
1726 | * Encode LOOKUP request | |
1727 | */ | |
8687b63a | 1728 | static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) |
1da177e4 LT |
1729 | { |
1730 | struct xdr_stream xdr; | |
1731 | struct compound_hdr hdr = { | |
66cc0429 | 1732 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1733 | }; |
1da177e4 LT |
1734 | |
1735 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1736 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1737 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1738 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1739 | encode_lookup(&xdr, args->name, &hdr); | |
1740 | encode_getfh(&xdr, &hdr); | |
1741 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1742 | encode_nops(&hdr); |
cf8cdbe5 | 1743 | return 0; |
1da177e4 LT |
1744 | } |
1745 | ||
1746 | /* | |
1747 | * Encode LOOKUP_ROOT request | |
1748 | */ | |
8687b63a | 1749 | static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) |
1da177e4 LT |
1750 | { |
1751 | struct xdr_stream xdr; | |
1752 | struct compound_hdr hdr = { | |
66cc0429 | 1753 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1754 | }; |
1da177e4 LT |
1755 | |
1756 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1757 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1758 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1759 | encode_putrootfh(&xdr, &hdr); |
1760 | encode_getfh(&xdr, &hdr); | |
1761 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1762 | encode_nops(&hdr); |
cf8cdbe5 | 1763 | return 0; |
1da177e4 LT |
1764 | } |
1765 | ||
1766 | /* | |
1767 | * Encode REMOVE request | |
1768 | */ | |
4fdc17b2 | 1769 | static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) |
1da177e4 LT |
1770 | { |
1771 | struct xdr_stream xdr; | |
1772 | struct compound_hdr hdr = { | |
66cc0429 | 1773 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1774 | }; |
1da177e4 LT |
1775 | |
1776 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1777 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1778 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1779 | encode_putfh(&xdr, args->fh, &hdr); |
1780 | encode_remove(&xdr, &args->name, &hdr); | |
1781 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1782 | encode_nops(&hdr); |
cf8cdbe5 | 1783 | return 0; |
1da177e4 LT |
1784 | } |
1785 | ||
1786 | /* | |
1787 | * Encode RENAME request | |
1788 | */ | |
8687b63a | 1789 | static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) |
1da177e4 LT |
1790 | { |
1791 | struct xdr_stream xdr; | |
1792 | struct compound_hdr hdr = { | |
66cc0429 | 1793 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1794 | }; |
1da177e4 LT |
1795 | |
1796 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1797 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1798 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1799 | encode_putfh(&xdr, args->old_dir, &hdr); |
1800 | encode_savefh(&xdr, &hdr); | |
1801 | encode_putfh(&xdr, args->new_dir, &hdr); | |
1802 | encode_rename(&xdr, args->old_name, args->new_name, &hdr); | |
1803 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1804 | encode_restorefh(&xdr, &hdr); | |
1805 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1806 | encode_nops(&hdr); |
cf8cdbe5 | 1807 | return 0; |
1da177e4 LT |
1808 | } |
1809 | ||
1810 | /* | |
1811 | * Encode LINK request | |
1812 | */ | |
8687b63a | 1813 | static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) |
1da177e4 LT |
1814 | { |
1815 | struct xdr_stream xdr; | |
1816 | struct compound_hdr hdr = { | |
66cc0429 | 1817 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1818 | }; |
1da177e4 LT |
1819 | |
1820 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1821 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1822 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1823 | encode_putfh(&xdr, args->fh, &hdr); |
1824 | encode_savefh(&xdr, &hdr); | |
1825 | encode_putfh(&xdr, args->dir_fh, &hdr); | |
1826 | encode_link(&xdr, args->name, &hdr); | |
1827 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1828 | encode_restorefh(&xdr, &hdr); | |
1829 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1830 | encode_nops(&hdr); |
cf8cdbe5 | 1831 | return 0; |
1da177e4 LT |
1832 | } |
1833 | ||
1834 | /* | |
1835 | * Encode CREATE request | |
1836 | */ | |
8687b63a | 1837 | static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1838 | { |
1839 | struct xdr_stream xdr; | |
1840 | struct compound_hdr hdr = { | |
66cc0429 | 1841 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1842 | }; |
1da177e4 LT |
1843 | |
1844 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1845 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1846 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1847 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1848 | encode_savefh(&xdr, &hdr); | |
1849 | encode_create(&xdr, args, &hdr); | |
1850 | encode_getfh(&xdr, &hdr); | |
1851 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1852 | encode_restorefh(&xdr, &hdr); | |
1853 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1854 | encode_nops(&hdr); |
cf8cdbe5 | 1855 | return 0; |
1da177e4 LT |
1856 | } |
1857 | ||
1858 | /* | |
1859 | * Encode SYMLINK request | |
1860 | */ | |
8687b63a | 1861 | static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1862 | { |
1863 | return nfs4_xdr_enc_create(req, p, args); | |
1864 | } | |
1865 | ||
1866 | /* | |
1867 | * Encode GETATTR request | |
1868 | */ | |
8687b63a | 1869 | static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) |
1da177e4 LT |
1870 | { |
1871 | struct xdr_stream xdr; | |
1872 | struct compound_hdr hdr = { | |
66cc0429 | 1873 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1874 | }; |
1da177e4 LT |
1875 | |
1876 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1877 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1878 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1879 | encode_putfh(&xdr, args->fh, &hdr); |
1880 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1881 | encode_nops(&hdr); |
cf8cdbe5 | 1882 | return 0; |
1da177e4 LT |
1883 | } |
1884 | ||
1885 | /* | |
1886 | * Encode a CLOSE request | |
1887 | */ | |
8687b63a | 1888 | static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 | 1889 | { |
05d564fe AA |
1890 | struct xdr_stream xdr; |
1891 | struct compound_hdr hdr = { | |
66cc0429 | 1892 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 1893 | }; |
05d564fe AA |
1894 | |
1895 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1896 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1897 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1898 | encode_putfh(&xdr, args->fh, &hdr); |
1899 | encode_close(&xdr, args, &hdr); | |
1900 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1901 | encode_nops(&hdr); |
cf8cdbe5 | 1902 | return 0; |
1da177e4 LT |
1903 | } |
1904 | ||
1905 | /* | |
1906 | * Encode an OPEN request | |
1907 | */ | |
8687b63a | 1908 | static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1909 | { |
1910 | struct xdr_stream xdr; | |
1911 | struct compound_hdr hdr = { | |
66cc0429 | 1912 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1913 | }; |
1da177e4 LT |
1914 | |
1915 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1916 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1917 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1918 | encode_putfh(&xdr, args->fh, &hdr); |
1919 | encode_savefh(&xdr, &hdr); | |
1920 | encode_open(&xdr, args, &hdr); | |
1921 | encode_getfh(&xdr, &hdr); | |
1922 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1923 | encode_restorefh(&xdr, &hdr); | |
1924 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1925 | encode_nops(&hdr); |
cf8cdbe5 | 1926 | return 0; |
1da177e4 LT |
1927 | } |
1928 | ||
1929 | /* | |
1930 | * Encode an OPEN_CONFIRM request | |
1931 | */ | |
8687b63a | 1932 | static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) |
1da177e4 LT |
1933 | { |
1934 | struct xdr_stream xdr; | |
1935 | struct compound_hdr hdr = { | |
d017931c | 1936 | .nops = 0, |
1da177e4 | 1937 | }; |
1da177e4 LT |
1938 | |
1939 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1940 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1941 | encode_putfh(&xdr, args->fh, &hdr); |
1942 | encode_open_confirm(&xdr, args, &hdr); | |
d017931c | 1943 | encode_nops(&hdr); |
cf8cdbe5 | 1944 | return 0; |
1da177e4 LT |
1945 | } |
1946 | ||
1947 | /* | |
1948 | * Encode an OPEN request with no attributes. | |
1949 | */ | |
8687b63a | 1950 | static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1951 | { |
1952 | struct xdr_stream xdr; | |
1953 | struct compound_hdr hdr = { | |
66cc0429 | 1954 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1955 | }; |
1da177e4 LT |
1956 | |
1957 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1958 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1959 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1960 | encode_putfh(&xdr, args->fh, &hdr); |
1961 | encode_open(&xdr, args, &hdr); | |
1962 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1963 | encode_nops(&hdr); |
cf8cdbe5 | 1964 | return 0; |
1da177e4 LT |
1965 | } |
1966 | ||
1967 | /* | |
1968 | * Encode an OPEN_DOWNGRADE request | |
1969 | */ | |
8687b63a | 1970 | static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 LT |
1971 | { |
1972 | struct xdr_stream xdr; | |
1973 | struct compound_hdr hdr = { | |
66cc0429 | 1974 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1975 | }; |
1da177e4 LT |
1976 | |
1977 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1978 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1979 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1980 | encode_putfh(&xdr, args->fh, &hdr); |
1981 | encode_open_downgrade(&xdr, args, &hdr); | |
1982 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1983 | encode_nops(&hdr); |
cf8cdbe5 | 1984 | return 0; |
1da177e4 LT |
1985 | } |
1986 | ||
1987 | /* | |
1988 | * Encode a LOCK request | |
1989 | */ | |
8687b63a | 1990 | static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) |
1da177e4 LT |
1991 | { |
1992 | struct xdr_stream xdr; | |
1993 | struct compound_hdr hdr = { | |
66cc0429 | 1994 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1995 | }; |
1da177e4 LT |
1996 | |
1997 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1998 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1999 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2000 | encode_putfh(&xdr, args->fh, &hdr); |
2001 | encode_lock(&xdr, args, &hdr); | |
d017931c | 2002 | encode_nops(&hdr); |
cf8cdbe5 | 2003 | return 0; |
1da177e4 LT |
2004 | } |
2005 | ||
2006 | /* | |
2007 | * Encode a LOCKT request | |
2008 | */ | |
8687b63a | 2009 | static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) |
1da177e4 LT |
2010 | { |
2011 | struct xdr_stream xdr; | |
2012 | struct compound_hdr hdr = { | |
66cc0429 | 2013 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2014 | }; |
1da177e4 LT |
2015 | |
2016 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2017 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2018 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2019 | encode_putfh(&xdr, args->fh, &hdr); |
2020 | encode_lockt(&xdr, args, &hdr); | |
d017931c | 2021 | encode_nops(&hdr); |
cf8cdbe5 | 2022 | return 0; |
1da177e4 LT |
2023 | } |
2024 | ||
2025 | /* | |
2026 | * Encode a LOCKU request | |
2027 | */ | |
8687b63a | 2028 | static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) |
1da177e4 LT |
2029 | { |
2030 | struct xdr_stream xdr; | |
2031 | struct compound_hdr hdr = { | |
66cc0429 | 2032 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2033 | }; |
1da177e4 LT |
2034 | |
2035 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2036 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2037 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2038 | encode_putfh(&xdr, args->fh, &hdr); |
2039 | encode_locku(&xdr, args, &hdr); | |
d017931c | 2040 | encode_nops(&hdr); |
cf8cdbe5 | 2041 | return 0; |
1da177e4 LT |
2042 | } |
2043 | ||
2044 | /* | |
2045 | * Encode a READLINK request | |
2046 | */ | |
8687b63a | 2047 | static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) |
1da177e4 LT |
2048 | { |
2049 | struct xdr_stream xdr; | |
2050 | struct compound_hdr hdr = { | |
66cc0429 | 2051 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2052 | }; |
1da177e4 LT |
2053 | |
2054 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2055 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2056 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2057 | encode_putfh(&xdr, args->fh, &hdr); |
2058 | encode_readlink(&xdr, args, req, &hdr); | |
e3a535e1 | 2059 | |
28f56694 | 2060 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
e3a535e1 | 2061 | args->pgbase, args->pglen); |
d017931c | 2062 | encode_nops(&hdr); |
cf8cdbe5 | 2063 | return 0; |
1da177e4 LT |
2064 | } |
2065 | ||
2066 | /* | |
2067 | * Encode a READDIR request | |
2068 | */ | |
8687b63a | 2069 | static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) |
1da177e4 LT |
2070 | { |
2071 | struct xdr_stream xdr; | |
2072 | struct compound_hdr hdr = { | |
66cc0429 | 2073 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2074 | }; |
1da177e4 LT |
2075 | |
2076 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2077 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2078 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2079 | encode_putfh(&xdr, args->fh, &hdr); |
2080 | encode_readdir(&xdr, args, req, &hdr); | |
d6ac02df | 2081 | |
28f56694 | 2082 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
d6ac02df TM |
2083 | args->pgbase, args->count); |
2084 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", | |
28f56694 | 2085 | __func__, hdr.replen << 2, args->pages, |
d6ac02df | 2086 | args->pgbase, args->count); |
d017931c | 2087 | encode_nops(&hdr); |
cf8cdbe5 | 2088 | return 0; |
1da177e4 LT |
2089 | } |
2090 | ||
2091 | /* | |
2092 | * Encode a READ request | |
2093 | */ | |
8687b63a | 2094 | static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) |
1da177e4 | 2095 | { |
1da177e4 LT |
2096 | struct xdr_stream xdr; |
2097 | struct compound_hdr hdr = { | |
66cc0429 | 2098 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2099 | }; |
1da177e4 LT |
2100 | |
2101 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2102 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2103 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2104 | encode_putfh(&xdr, args->fh, &hdr); |
2105 | encode_read(&xdr, args, &hdr); | |
1da177e4 | 2106 | |
28f56694 | 2107 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, |
1da177e4 | 2108 | args->pages, args->pgbase, args->count); |
4f22ccc3 | 2109 | req->rq_rcv_buf.flags |= XDRBUF_READ; |
d017931c | 2110 | encode_nops(&hdr); |
cf8cdbe5 | 2111 | return 0; |
1da177e4 LT |
2112 | } |
2113 | ||
2114 | /* | |
2115 | * Encode an SETATTR request | |
2116 | */ | |
8687b63a | 2117 | static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) |
1da177e4 | 2118 | { |
05d564fe AA |
2119 | struct xdr_stream xdr; |
2120 | struct compound_hdr hdr = { | |
66cc0429 | 2121 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 2122 | }; |
05d564fe AA |
2123 | |
2124 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2125 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2126 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2127 | encode_putfh(&xdr, args->fh, &hdr); |
2128 | encode_setattr(&xdr, args, args->server, &hdr); | |
2129 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2130 | encode_nops(&hdr); |
cf8cdbe5 | 2131 | return 0; |
1da177e4 LT |
2132 | } |
2133 | ||
029d105e BF |
2134 | /* |
2135 | * Encode a GETACL request | |
2136 | */ | |
2137 | static int | |
8687b63a | 2138 | nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, |
029d105e BF |
2139 | struct nfs_getaclargs *args) |
2140 | { | |
2141 | struct xdr_stream xdr; | |
029d105e | 2142 | struct compound_hdr hdr = { |
66cc0429 | 2143 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
029d105e | 2144 | }; |
28f56694 | 2145 | uint32_t replen; |
029d105e BF |
2146 | |
2147 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2148 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2149 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 | 2150 | encode_putfh(&xdr, args->fh, &hdr); |
d327cf74 | 2151 | replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1; |
cf8cdbe5 AA |
2152 | encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); |
2153 | ||
28f56694 | 2154 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, |
029d105e | 2155 | args->acl_pages, args->acl_pgbase, args->acl_len); |
d017931c | 2156 | encode_nops(&hdr); |
cf8cdbe5 | 2157 | return 0; |
029d105e BF |
2158 | } |
2159 | ||
1da177e4 LT |
2160 | /* |
2161 | * Encode a WRITE request | |
2162 | */ | |
8687b63a | 2163 | static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
2164 | { |
2165 | struct xdr_stream xdr; | |
2166 | struct compound_hdr hdr = { | |
66cc0429 | 2167 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2168 | }; |
1da177e4 LT |
2169 | |
2170 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2171 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2172 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2173 | encode_putfh(&xdr, args->fh, &hdr); |
2174 | encode_write(&xdr, args, &hdr); | |
4f22ccc3 | 2175 | req->rq_snd_buf.flags |= XDRBUF_WRITE; |
cf8cdbe5 | 2176 | encode_getfattr(&xdr, args->bitmask, &hdr); |
d017931c | 2177 | encode_nops(&hdr); |
cf8cdbe5 | 2178 | return 0; |
1da177e4 LT |
2179 | } |
2180 | ||
2181 | /* | |
2182 | * a COMMIT request | |
2183 | */ | |
8687b63a | 2184 | static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
2185 | { |
2186 | struct xdr_stream xdr; | |
2187 | struct compound_hdr hdr = { | |
66cc0429 | 2188 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2189 | }; |
1da177e4 LT |
2190 | |
2191 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2192 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2193 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2194 | encode_putfh(&xdr, args->fh, &hdr); |
2195 | encode_commit(&xdr, args, &hdr); | |
2196 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2197 | encode_nops(&hdr); |
cf8cdbe5 | 2198 | return 0; |
1da177e4 LT |
2199 | } |
2200 | ||
2201 | /* | |
2202 | * FSINFO request | |
2203 | */ | |
8687b63a | 2204 | static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) |
1da177e4 LT |
2205 | { |
2206 | struct xdr_stream xdr; | |
2207 | struct compound_hdr hdr = { | |
66cc0429 | 2208 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2209 | }; |
1da177e4 LT |
2210 | |
2211 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2212 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2213 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2214 | encode_putfh(&xdr, args->fh, &hdr); |
2215 | encode_fsinfo(&xdr, args->bitmask, &hdr); | |
d017931c | 2216 | encode_nops(&hdr); |
cf8cdbe5 | 2217 | return 0; |
1da177e4 LT |
2218 | } |
2219 | ||
2220 | /* | |
2221 | * a PATHCONF request | |
2222 | */ | |
8687b63a | 2223 | static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) |
1da177e4 | 2224 | { |
1da177e4 LT |
2225 | struct xdr_stream xdr; |
2226 | struct compound_hdr hdr = { | |
66cc0429 | 2227 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2228 | }; |
1da177e4 LT |
2229 | |
2230 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2231 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2232 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2233 | encode_putfh(&xdr, args->fh, &hdr); |
2234 | encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], | |
2235 | &hdr); | |
d017931c | 2236 | encode_nops(&hdr); |
cf8cdbe5 | 2237 | return 0; |
1da177e4 LT |
2238 | } |
2239 | ||
2240 | /* | |
2241 | * a STATFS request | |
2242 | */ | |
8687b63a | 2243 | static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) |
1da177e4 | 2244 | { |
1da177e4 LT |
2245 | struct xdr_stream xdr; |
2246 | struct compound_hdr hdr = { | |
66cc0429 | 2247 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2248 | }; |
1da177e4 LT |
2249 | |
2250 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2251 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2252 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2253 | encode_putfh(&xdr, args->fh, &hdr); |
2254 | encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], | |
2255 | args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); | |
d017931c | 2256 | encode_nops(&hdr); |
cf8cdbe5 | 2257 | return 0; |
1da177e4 LT |
2258 | } |
2259 | ||
2260 | /* | |
2261 | * GETATTR_BITMAP request | |
2262 | */ | |
43652ad5 BH |
2263 | static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, |
2264 | struct nfs4_server_caps_arg *args) | |
1da177e4 LT |
2265 | { |
2266 | struct xdr_stream xdr; | |
2267 | struct compound_hdr hdr = { | |
66cc0429 | 2268 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2269 | }; |
1da177e4 LT |
2270 | |
2271 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2272 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2273 | encode_sequence(&xdr, &args->seq_args, &hdr); |
43652ad5 | 2274 | encode_putfh(&xdr, args->fhandle, &hdr); |
cf8cdbe5 AA |
2275 | encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| |
2276 | FATTR4_WORD0_LINK_SUPPORT| | |
2277 | FATTR4_WORD0_SYMLINK_SUPPORT| | |
2278 | FATTR4_WORD0_ACLSUPPORT, &hdr); | |
d017931c | 2279 | encode_nops(&hdr); |
cf8cdbe5 | 2280 | return 0; |
1da177e4 LT |
2281 | } |
2282 | ||
2283 | /* | |
2284 | * a RENEW request | |
2285 | */ | |
8687b63a | 2286 | static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2287 | { |
2288 | struct xdr_stream xdr; | |
2289 | struct compound_hdr hdr = { | |
d017931c | 2290 | .nops = 0, |
1da177e4 LT |
2291 | }; |
2292 | ||
2293 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2294 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 2295 | encode_renew(&xdr, clp, &hdr); |
d017931c | 2296 | encode_nops(&hdr); |
cf8cdbe5 | 2297 | return 0; |
1da177e4 LT |
2298 | } |
2299 | ||
2300 | /* | |
2301 | * a SETCLIENTID request | |
2302 | */ | |
8687b63a | 2303 | static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) |
1da177e4 LT |
2304 | { |
2305 | struct xdr_stream xdr; | |
2306 | struct compound_hdr hdr = { | |
d017931c | 2307 | .nops = 0, |
1da177e4 LT |
2308 | }; |
2309 | ||
2310 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2311 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 2312 | encode_setclientid(&xdr, sc, &hdr); |
d017931c | 2313 | encode_nops(&hdr); |
cf8cdbe5 | 2314 | return 0; |
1da177e4 LT |
2315 | } |
2316 | ||
2317 | /* | |
2318 | * a SETCLIENTID_CONFIRM request | |
2319 | */ | |
8687b63a | 2320 | static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2321 | { |
2322 | struct xdr_stream xdr; | |
2323 | struct compound_hdr hdr = { | |
d017931c | 2324 | .nops = 0, |
1da177e4 LT |
2325 | }; |
2326 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
1da177e4 LT |
2327 | |
2328 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2329 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
2330 | encode_setclientid_confirm(&xdr, clp, &hdr); |
2331 | encode_putrootfh(&xdr, &hdr); | |
2332 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
d017931c | 2333 | encode_nops(&hdr); |
cf8cdbe5 | 2334 | return 0; |
1da177e4 LT |
2335 | } |
2336 | ||
2337 | /* | |
2338 | * DELEGRETURN request | |
2339 | */ | |
8687b63a | 2340 | static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) |
1da177e4 LT |
2341 | { |
2342 | struct xdr_stream xdr; | |
2343 | struct compound_hdr hdr = { | |
66cc0429 | 2344 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2345 | }; |
1da177e4 LT |
2346 | |
2347 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2348 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2349 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2350 | encode_putfh(&xdr, args->fhandle, &hdr); |
2351 | encode_delegreturn(&xdr, args->stateid, &hdr); | |
2352 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2353 | encode_nops(&hdr); |
cf8cdbe5 | 2354 | return 0; |
1da177e4 LT |
2355 | } |
2356 | ||
683b57b4 TM |
2357 | /* |
2358 | * Encode FS_LOCATIONS request | |
2359 | */ | |
8687b63a | 2360 | static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) |
683b57b4 TM |
2361 | { |
2362 | struct xdr_stream xdr; | |
2363 | struct compound_hdr hdr = { | |
66cc0429 | 2364 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
683b57b4 | 2365 | }; |
28f56694 | 2366 | uint32_t replen; |
683b57b4 TM |
2367 | |
2368 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2369 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2370 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2371 | encode_putfh(&xdr, args->dir_fh, &hdr); |
2372 | encode_lookup(&xdr, args->name, &hdr); | |
28f56694 | 2373 | replen = hdr.replen; /* get the attribute into args->page */ |
cf8cdbe5 AA |
2374 | encode_fs_locations(&xdr, args->bitmask, &hdr); |
2375 | ||
28f56694 | 2376 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, |
683b57b4 | 2377 | 0, PAGE_SIZE); |
d017931c | 2378 | encode_nops(&hdr); |
cf8cdbe5 | 2379 | return 0; |
683b57b4 TM |
2380 | } |
2381 | ||
99fe60d0 BH |
2382 | #if defined(CONFIG_NFS_V4_1) |
2383 | /* | |
2384 | * EXCHANGE_ID request | |
2385 | */ | |
2386 | static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, | |
2387 | struct nfs41_exchange_id_args *args) | |
2388 | { | |
2389 | struct xdr_stream xdr; | |
2390 | struct compound_hdr hdr = { | |
2391 | .minorversion = args->client->cl_minorversion, | |
2392 | }; | |
2393 | ||
2394 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2395 | encode_compound_hdr(&xdr, req, &hdr); | |
2396 | encode_exchange_id(&xdr, args, &hdr); | |
2397 | encode_nops(&hdr); | |
2398 | return 0; | |
2399 | } | |
2050f0cc | 2400 | |
fc931582 AA |
2401 | /* |
2402 | * a CREATE_SESSION request | |
2403 | */ | |
2404 | static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, | |
2405 | struct nfs41_create_session_args *args) | |
2406 | { | |
2407 | struct xdr_stream xdr; | |
2408 | struct compound_hdr hdr = { | |
2409 | .minorversion = args->client->cl_minorversion, | |
2410 | }; | |
2411 | ||
2412 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2413 | encode_compound_hdr(&xdr, req, &hdr); | |
2414 | encode_create_session(&xdr, args, &hdr); | |
2415 | encode_nops(&hdr); | |
2416 | return 0; | |
2417 | } | |
2418 | ||
0f3e66c6 AA |
2419 | /* |
2420 | * a DESTROY_SESSION request | |
2421 | */ | |
2422 | static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, | |
2423 | struct nfs4_session *session) | |
2424 | { | |
2425 | struct xdr_stream xdr; | |
2426 | struct compound_hdr hdr = { | |
2427 | .minorversion = session->clp->cl_minorversion, | |
2428 | }; | |
2429 | ||
2430 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2431 | encode_compound_hdr(&xdr, req, &hdr); | |
2432 | encode_destroy_session(&xdr, session, &hdr); | |
2433 | encode_nops(&hdr); | |
2434 | return 0; | |
2435 | } | |
2436 | ||
fc01cea9 AA |
2437 | /* |
2438 | * a SEQUENCE request | |
2439 | */ | |
2440 | static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, | |
2441 | struct nfs4_sequence_args *args) | |
2442 | { | |
2443 | struct xdr_stream xdr; | |
2444 | struct compound_hdr hdr = { | |
2445 | .minorversion = nfs4_xdr_minorversion(args), | |
2446 | }; | |
2447 | ||
2448 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2449 | encode_compound_hdr(&xdr, req, &hdr); | |
2450 | encode_sequence(&xdr, args, &hdr); | |
2451 | encode_nops(&hdr); | |
2452 | return 0; | |
2453 | } | |
2454 | ||
2050f0cc AA |
2455 | /* |
2456 | * a GET_LEASE_TIME request | |
2457 | */ | |
2458 | static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, | |
2459 | struct nfs4_get_lease_time_args *args) | |
2460 | { | |
2461 | struct xdr_stream xdr; | |
2462 | struct compound_hdr hdr = { | |
2463 | .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), | |
2464 | }; | |
2465 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
2466 | ||
2467 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2468 | encode_compound_hdr(&xdr, req, &hdr); | |
2469 | encode_sequence(&xdr, &args->la_seq_args, &hdr); | |
2470 | encode_putrootfh(&xdr, &hdr); | |
2471 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
2472 | encode_nops(&hdr); | |
2473 | return 0; | |
2474 | } | |
18019753 RL |
2475 | |
2476 | /* | |
2477 | * a RECLAIM_COMPLETE request | |
2478 | */ | |
2479 | static int nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, uint32_t *p, | |
2480 | struct nfs41_reclaim_complete_args *args) | |
2481 | { | |
2482 | struct xdr_stream xdr; | |
2483 | struct compound_hdr hdr = { | |
2484 | .minorversion = nfs4_xdr_minorversion(&args->seq_args) | |
2485 | }; | |
2486 | ||
2487 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2488 | encode_compound_hdr(&xdr, req, &hdr); | |
2489 | encode_sequence(&xdr, &args->seq_args, &hdr); | |
2490 | encode_reclaim_complete(&xdr, args, &hdr); | |
2491 | encode_nops(&hdr); | |
2492 | return 0; | |
2493 | } | |
2494 | ||
99fe60d0 BH |
2495 | #endif /* CONFIG_NFS_V4_1 */ |
2496 | ||
686841b3 BH |
2497 | static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) |
2498 | { | |
2499 | dprintk("nfs: %s: prematurely hit end of receive buffer. " | |
2500 | "Remaining buffer length is %tu words.\n", | |
2501 | func, xdr->end - xdr->p); | |
2502 | } | |
1da177e4 | 2503 | |
683b57b4 | 2504 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
1da177e4 | 2505 | { |
8687b63a | 2506 | __be32 *p; |
1da177e4 | 2507 | |
c0eae66e BH |
2508 | p = xdr_inline_decode(xdr, 4); |
2509 | if (unlikely(!p)) | |
2510 | goto out_overflow; | |
cccddf4f | 2511 | *len = be32_to_cpup(p); |
c0eae66e BH |
2512 | p = xdr_inline_decode(xdr, *len); |
2513 | if (unlikely(!p)) | |
2514 | goto out_overflow; | |
1da177e4 LT |
2515 | *string = (char *)p; |
2516 | return 0; | |
c0eae66e BH |
2517 | out_overflow: |
2518 | print_overflow_msg(__func__, xdr); | |
2519 | return -EIO; | |
1da177e4 LT |
2520 | } |
2521 | ||
2522 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
2523 | { | |
8687b63a | 2524 | __be32 *p; |
1da177e4 | 2525 | |
c0eae66e BH |
2526 | p = xdr_inline_decode(xdr, 8); |
2527 | if (unlikely(!p)) | |
2528 | goto out_overflow; | |
6f723f77 | 2529 | hdr->status = be32_to_cpup(p++); |
cccddf4f | 2530 | hdr->taglen = be32_to_cpup(p); |
6c0195a4 | 2531 | |
c0eae66e BH |
2532 | p = xdr_inline_decode(xdr, hdr->taglen + 4); |
2533 | if (unlikely(!p)) | |
2534 | goto out_overflow; | |
1da177e4 LT |
2535 | hdr->tag = (char *)p; |
2536 | p += XDR_QUADLEN(hdr->taglen); | |
cccddf4f | 2537 | hdr->nops = be32_to_cpup(p); |
aadf6152 BH |
2538 | if (unlikely(hdr->nops < 1)) |
2539 | return nfs4_stat_to_errno(hdr->status); | |
1da177e4 | 2540 | return 0; |
c0eae66e BH |
2541 | out_overflow: |
2542 | print_overflow_msg(__func__, xdr); | |
2543 | return -EIO; | |
1da177e4 LT |
2544 | } |
2545 | ||
2546 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) | |
2547 | { | |
8687b63a | 2548 | __be32 *p; |
1da177e4 LT |
2549 | uint32_t opnum; |
2550 | int32_t nfserr; | |
2551 | ||
c0eae66e BH |
2552 | p = xdr_inline_decode(xdr, 8); |
2553 | if (unlikely(!p)) | |
2554 | goto out_overflow; | |
6f723f77 | 2555 | opnum = be32_to_cpup(p++); |
1da177e4 | 2556 | if (opnum != expected) { |
fe82a183 CL |
2557 | dprintk("nfs: Server returned operation" |
2558 | " %d but we issued a request for %d\n", | |
1da177e4 LT |
2559 | opnum, expected); |
2560 | return -EIO; | |
2561 | } | |
cccddf4f | 2562 | nfserr = be32_to_cpup(p); |
1da177e4 | 2563 | if (nfserr != NFS_OK) |
856dff3d | 2564 | return nfs4_stat_to_errno(nfserr); |
1da177e4 | 2565 | return 0; |
c0eae66e BH |
2566 | out_overflow: |
2567 | print_overflow_msg(__func__, xdr); | |
2568 | return -EIO; | |
1da177e4 LT |
2569 | } |
2570 | ||
2571 | /* Dummy routine */ | |
adfa6f98 | 2572 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
1da177e4 | 2573 | { |
8687b63a | 2574 | __be32 *p; |
683b57b4 | 2575 | unsigned int strlen; |
1da177e4 LT |
2576 | char *str; |
2577 | ||
c0eae66e BH |
2578 | p = xdr_inline_decode(xdr, 12); |
2579 | if (likely(p)) | |
2580 | return decode_opaque_inline(xdr, &strlen, &str); | |
2581 | print_overflow_msg(__func__, xdr); | |
2582 | return -EIO; | |
1da177e4 LT |
2583 | } |
2584 | ||
2585 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) | |
2586 | { | |
8687b63a AV |
2587 | uint32_t bmlen; |
2588 | __be32 *p; | |
1da177e4 | 2589 | |
c0eae66e BH |
2590 | p = xdr_inline_decode(xdr, 4); |
2591 | if (unlikely(!p)) | |
2592 | goto out_overflow; | |
cccddf4f | 2593 | bmlen = be32_to_cpup(p); |
1da177e4 LT |
2594 | |
2595 | bitmap[0] = bitmap[1] = 0; | |
c0eae66e BH |
2596 | p = xdr_inline_decode(xdr, (bmlen << 2)); |
2597 | if (unlikely(!p)) | |
2598 | goto out_overflow; | |
1da177e4 | 2599 | if (bmlen > 0) { |
6f723f77 | 2600 | bitmap[0] = be32_to_cpup(p++); |
1da177e4 | 2601 | if (bmlen > 1) |
cccddf4f | 2602 | bitmap[1] = be32_to_cpup(p); |
1da177e4 LT |
2603 | } |
2604 | return 0; | |
c0eae66e BH |
2605 | out_overflow: |
2606 | print_overflow_msg(__func__, xdr); | |
2607 | return -EIO; | |
1da177e4 LT |
2608 | } |
2609 | ||
8687b63a | 2610 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
1da177e4 | 2611 | { |
8687b63a | 2612 | __be32 *p; |
1da177e4 | 2613 | |
c0eae66e BH |
2614 | p = xdr_inline_decode(xdr, 4); |
2615 | if (unlikely(!p)) | |
2616 | goto out_overflow; | |
cccddf4f | 2617 | *attrlen = be32_to_cpup(p); |
1da177e4 LT |
2618 | *savep = xdr->p; |
2619 | return 0; | |
c0eae66e BH |
2620 | out_overflow: |
2621 | print_overflow_msg(__func__, xdr); | |
2622 | return -EIO; | |
1da177e4 LT |
2623 | } |
2624 | ||
2625 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) | |
2626 | { | |
2627 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { | |
2628 | decode_attr_bitmap(xdr, bitmask); | |
2629 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; | |
2630 | } else | |
2631 | bitmask[0] = bitmask[1] = 0; | |
44109241 | 2632 | dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); |
1da177e4 LT |
2633 | return 0; |
2634 | } | |
2635 | ||
2636 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) | |
2637 | { | |
8687b63a | 2638 | __be32 *p; |
409924e4 | 2639 | int ret = 0; |
1da177e4 LT |
2640 | |
2641 | *type = 0; | |
2642 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) | |
2643 | return -EIO; | |
2644 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { | |
c0eae66e BH |
2645 | p = xdr_inline_decode(xdr, 4); |
2646 | if (unlikely(!p)) | |
2647 | goto out_overflow; | |
cccddf4f | 2648 | *type = be32_to_cpup(p); |
1da177e4 | 2649 | if (*type < NF4REG || *type > NF4NAMEDATTR) { |
3110ff80 | 2650 | dprintk("%s: bad type %d\n", __func__, *type); |
1da177e4 LT |
2651 | return -EIO; |
2652 | } | |
2653 | bitmap[0] &= ~FATTR4_WORD0_TYPE; | |
409924e4 | 2654 | ret = NFS_ATTR_FATTR_TYPE; |
1da177e4 | 2655 | } |
bca79478 | 2656 | dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); |
409924e4 | 2657 | return ret; |
c0eae66e BH |
2658 | out_overflow: |
2659 | print_overflow_msg(__func__, xdr); | |
2660 | return -EIO; | |
1da177e4 LT |
2661 | } |
2662 | ||
2663 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) | |
2664 | { | |
8687b63a | 2665 | __be32 *p; |
409924e4 | 2666 | int ret = 0; |
1da177e4 LT |
2667 | |
2668 | *change = 0; | |
2669 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) | |
2670 | return -EIO; | |
2671 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { | |
c0eae66e BH |
2672 | p = xdr_inline_decode(xdr, 8); |
2673 | if (unlikely(!p)) | |
2674 | goto out_overflow; | |
cccddf4f | 2675 | xdr_decode_hyper(p, change); |
1da177e4 | 2676 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; |
409924e4 | 2677 | ret = NFS_ATTR_FATTR_CHANGE; |
1da177e4 | 2678 | } |
3110ff80 | 2679 | dprintk("%s: change attribute=%Lu\n", __func__, |
1da177e4 | 2680 | (unsigned long long)*change); |
409924e4 | 2681 | return ret; |
c0eae66e BH |
2682 | out_overflow: |
2683 | print_overflow_msg(__func__, xdr); | |
2684 | return -EIO; | |
1da177e4 LT |
2685 | } |
2686 | ||
2687 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) | |
2688 | { | |
8687b63a | 2689 | __be32 *p; |
409924e4 | 2690 | int ret = 0; |
1da177e4 LT |
2691 | |
2692 | *size = 0; | |
2693 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) | |
2694 | return -EIO; | |
2695 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { | |
c0eae66e BH |
2696 | p = xdr_inline_decode(xdr, 8); |
2697 | if (unlikely(!p)) | |
2698 | goto out_overflow; | |
cccddf4f | 2699 | xdr_decode_hyper(p, size); |
1da177e4 | 2700 | bitmap[0] &= ~FATTR4_WORD0_SIZE; |
409924e4 | 2701 | ret = NFS_ATTR_FATTR_SIZE; |
1da177e4 | 2702 | } |
3110ff80 | 2703 | dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); |
409924e4 | 2704 | return ret; |
c0eae66e BH |
2705 | out_overflow: |
2706 | print_overflow_msg(__func__, xdr); | |
2707 | return -EIO; | |
1da177e4 LT |
2708 | } |
2709 | ||
2710 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2711 | { | |
8687b63a | 2712 | __be32 *p; |
1da177e4 LT |
2713 | |
2714 | *res = 0; | |
2715 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) | |
2716 | return -EIO; | |
2717 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { | |
c0eae66e BH |
2718 | p = xdr_inline_decode(xdr, 4); |
2719 | if (unlikely(!p)) | |
2720 | goto out_overflow; | |
cccddf4f | 2721 | *res = be32_to_cpup(p); |
1da177e4 LT |
2722 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; |
2723 | } | |
3110ff80 | 2724 | dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 | 2725 | return 0; |
c0eae66e BH |
2726 | out_overflow: |
2727 | print_overflow_msg(__func__, xdr); | |
2728 | return -EIO; | |
1da177e4 LT |
2729 | } |
2730 | ||
2731 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2732 | { | |
8687b63a | 2733 | __be32 *p; |
1da177e4 LT |
2734 | |
2735 | *res = 0; | |
2736 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) | |
2737 | return -EIO; | |
2738 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { | |
c0eae66e BH |
2739 | p = xdr_inline_decode(xdr, 4); |
2740 | if (unlikely(!p)) | |
2741 | goto out_overflow; | |
cccddf4f | 2742 | *res = be32_to_cpup(p); |
1da177e4 LT |
2743 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; |
2744 | } | |
3110ff80 | 2745 | dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 | 2746 | return 0; |
c0eae66e BH |
2747 | out_overflow: |
2748 | print_overflow_msg(__func__, xdr); | |
2749 | return -EIO; | |
1da177e4 LT |
2750 | } |
2751 | ||
8b4bdcf8 | 2752 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
1da177e4 | 2753 | { |
8687b63a | 2754 | __be32 *p; |
409924e4 | 2755 | int ret = 0; |
1da177e4 LT |
2756 | |
2757 | fsid->major = 0; | |
2758 | fsid->minor = 0; | |
2759 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) | |
2760 | return -EIO; | |
2761 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { | |
c0eae66e BH |
2762 | p = xdr_inline_decode(xdr, 16); |
2763 | if (unlikely(!p)) | |
2764 | goto out_overflow; | |
3ceb4dbb | 2765 | p = xdr_decode_hyper(p, &fsid->major); |
cccddf4f | 2766 | xdr_decode_hyper(p, &fsid->minor); |
1da177e4 | 2767 | bitmap[0] &= ~FATTR4_WORD0_FSID; |
409924e4 | 2768 | ret = NFS_ATTR_FATTR_FSID; |
1da177e4 | 2769 | } |
3110ff80 | 2770 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, |
1da177e4 LT |
2771 | (unsigned long long)fsid->major, |
2772 | (unsigned long long)fsid->minor); | |
409924e4 | 2773 | return ret; |
c0eae66e BH |
2774 | out_overflow: |
2775 | print_overflow_msg(__func__, xdr); | |
2776 | return -EIO; | |
1da177e4 LT |
2777 | } |
2778 | ||
2779 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2780 | { | |
8687b63a | 2781 | __be32 *p; |
1da177e4 LT |
2782 | |
2783 | *res = 60; | |
2784 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) | |
2785 | return -EIO; | |
2786 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { | |
c0eae66e BH |
2787 | p = xdr_inline_decode(xdr, 4); |
2788 | if (unlikely(!p)) | |
2789 | goto out_overflow; | |
cccddf4f | 2790 | *res = be32_to_cpup(p); |
1da177e4 LT |
2791 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; |
2792 | } | |
3110ff80 | 2793 | dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); |
1da177e4 | 2794 | return 0; |
c0eae66e BH |
2795 | out_overflow: |
2796 | print_overflow_msg(__func__, xdr); | |
2797 | return -EIO; | |
1da177e4 LT |
2798 | } |
2799 | ||
2800 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2801 | { | |
8687b63a | 2802 | __be32 *p; |
1da177e4 LT |
2803 | |
2804 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; | |
2805 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) | |
2806 | return -EIO; | |
2807 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { | |
c0eae66e BH |
2808 | p = xdr_inline_decode(xdr, 4); |
2809 | if (unlikely(!p)) | |
2810 | goto out_overflow; | |
cccddf4f | 2811 | *res = be32_to_cpup(p); |
1da177e4 LT |
2812 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; |
2813 | } | |
3110ff80 | 2814 | dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); |
1da177e4 | 2815 | return 0; |
c0eae66e BH |
2816 | out_overflow: |
2817 | print_overflow_msg(__func__, xdr); | |
2818 | return -EIO; | |
1da177e4 LT |
2819 | } |
2820 | ||
2821 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) | |
2822 | { | |
8687b63a | 2823 | __be32 *p; |
409924e4 | 2824 | int ret = 0; |
1da177e4 LT |
2825 | |
2826 | *fileid = 0; | |
2827 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) | |
2828 | return -EIO; | |
2829 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { | |
c0eae66e BH |
2830 | p = xdr_inline_decode(xdr, 8); |
2831 | if (unlikely(!p)) | |
2832 | goto out_overflow; | |
cccddf4f | 2833 | xdr_decode_hyper(p, fileid); |
1da177e4 | 2834 | bitmap[0] &= ~FATTR4_WORD0_FILEID; |
409924e4 | 2835 | ret = NFS_ATTR_FATTR_FILEID; |
1da177e4 | 2836 | } |
3110ff80 | 2837 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2838 | return ret; |
c0eae66e BH |
2839 | out_overflow: |
2840 | print_overflow_msg(__func__, xdr); | |
2841 | return -EIO; | |
1da177e4 LT |
2842 | } |
2843 | ||
99baf625 MN |
2844 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
2845 | { | |
8687b63a | 2846 | __be32 *p; |
409924e4 | 2847 | int ret = 0; |
99baf625 MN |
2848 | |
2849 | *fileid = 0; | |
2850 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) | |
2851 | return -EIO; | |
2852 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { | |
c0eae66e BH |
2853 | p = xdr_inline_decode(xdr, 8); |
2854 | if (unlikely(!p)) | |
2855 | goto out_overflow; | |
cccddf4f | 2856 | xdr_decode_hyper(p, fileid); |
99baf625 | 2857 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; |
409924e4 | 2858 | ret = NFS_ATTR_FATTR_FILEID; |
99baf625 | 2859 | } |
3110ff80 | 2860 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2861 | return ret; |
c0eae66e BH |
2862 | out_overflow: |
2863 | print_overflow_msg(__func__, xdr); | |
2864 | return -EIO; | |
99baf625 MN |
2865 | } |
2866 | ||
1da177e4 LT |
2867 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2868 | { | |
8687b63a | 2869 | __be32 *p; |
1da177e4 LT |
2870 | int status = 0; |
2871 | ||
2872 | *res = 0; | |
2873 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) | |
2874 | return -EIO; | |
2875 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { | |
c0eae66e BH |
2876 | p = xdr_inline_decode(xdr, 8); |
2877 | if (unlikely(!p)) | |
2878 | goto out_overflow; | |
cccddf4f | 2879 | xdr_decode_hyper(p, res); |
1da177e4 LT |
2880 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; |
2881 | } | |
3110ff80 | 2882 | dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 2883 | return status; |
c0eae66e BH |
2884 | out_overflow: |
2885 | print_overflow_msg(__func__, xdr); | |
2886 | return -EIO; | |
1da177e4 LT |
2887 | } |
2888 | ||
2889 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2890 | { | |
8687b63a | 2891 | __be32 *p; |
1da177e4 LT |
2892 | int status = 0; |
2893 | ||
2894 | *res = 0; | |
2895 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) | |
2896 | return -EIO; | |
2897 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { | |
c0eae66e BH |
2898 | p = xdr_inline_decode(xdr, 8); |
2899 | if (unlikely(!p)) | |
2900 | goto out_overflow; | |
cccddf4f | 2901 | xdr_decode_hyper(p, res); |
1da177e4 LT |
2902 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; |
2903 | } | |
3110ff80 | 2904 | dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 2905 | return status; |
c0eae66e BH |
2906 | out_overflow: |
2907 | print_overflow_msg(__func__, xdr); | |
2908 | return -EIO; | |
1da177e4 LT |
2909 | } |
2910 | ||
2911 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2912 | { | |
8687b63a | 2913 | __be32 *p; |
1da177e4 LT |
2914 | int status = 0; |
2915 | ||
2916 | *res = 0; | |
2917 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) | |
2918 | return -EIO; | |
2919 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { | |
c0eae66e BH |
2920 | p = xdr_inline_decode(xdr, 8); |
2921 | if (unlikely(!p)) | |
2922 | goto out_overflow; | |
cccddf4f | 2923 | xdr_decode_hyper(p, res); |
1da177e4 LT |
2924 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; |
2925 | } | |
3110ff80 | 2926 | dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 2927 | return status; |
c0eae66e BH |
2928 | out_overflow: |
2929 | print_overflow_msg(__func__, xdr); | |
2930 | return -EIO; | |
1da177e4 LT |
2931 | } |
2932 | ||
7aaa0b3b MN |
2933 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
2934 | { | |
464ad6b1 | 2935 | u32 n; |
8687b63a | 2936 | __be32 *p; |
7aaa0b3b MN |
2937 | int status = 0; |
2938 | ||
c0eae66e BH |
2939 | p = xdr_inline_decode(xdr, 4); |
2940 | if (unlikely(!p)) | |
2941 | goto out_overflow; | |
cccddf4f | 2942 | n = be32_to_cpup(p); |
33a43f28 AA |
2943 | if (n == 0) |
2944 | goto root_path; | |
7aaa0b3b MN |
2945 | dprintk("path "); |
2946 | path->ncomponents = 0; | |
2947 | while (path->ncomponents < n) { | |
2948 | struct nfs4_string *component = &path->components[path->ncomponents]; | |
2949 | status = decode_opaque_inline(xdr, &component->len, &component->data); | |
2950 | if (unlikely(status != 0)) | |
2951 | goto out_eio; | |
2952 | if (path->ncomponents != n) | |
2953 | dprintk("/"); | |
2954 | dprintk("%s", component->data); | |
2955 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) | |
2956 | path->ncomponents++; | |
2957 | else { | |
2958 | dprintk("cannot parse %d components in path\n", n); | |
2959 | goto out_eio; | |
2960 | } | |
2961 | } | |
2962 | out: | |
2963 | dprintk("\n"); | |
2964 | return status; | |
33a43f28 AA |
2965 | root_path: |
2966 | /* a root pathname is sent as a zero component4 */ | |
2967 | path->ncomponents = 1; | |
2968 | path->components[0].len=0; | |
2969 | path->components[0].data=NULL; | |
2970 | dprintk("path /\n"); | |
2971 | goto out; | |
7aaa0b3b MN |
2972 | out_eio: |
2973 | dprintk(" status %d", status); | |
2974 | status = -EIO; | |
2975 | goto out; | |
c0eae66e BH |
2976 | out_overflow: |
2977 | print_overflow_msg(__func__, xdr); | |
2978 | return -EIO; | |
7aaa0b3b MN |
2979 | } |
2980 | ||
2981 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) | |
683b57b4 TM |
2982 | { |
2983 | int n; | |
8687b63a | 2984 | __be32 *p; |
683b57b4 TM |
2985 | int status = -EIO; |
2986 | ||
2987 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) | |
2988 | goto out; | |
2989 | status = 0; | |
2990 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) | |
2991 | goto out; | |
3110ff80 | 2992 | dprintk("%s: fsroot ", __func__); |
7aaa0b3b | 2993 | status = decode_pathname(xdr, &res->fs_path); |
683b57b4 TM |
2994 | if (unlikely(status != 0)) |
2995 | goto out; | |
c0eae66e BH |
2996 | p = xdr_inline_decode(xdr, 4); |
2997 | if (unlikely(!p)) | |
2998 | goto out_overflow; | |
cccddf4f | 2999 | n = be32_to_cpup(p); |
683b57b4 TM |
3000 | if (n <= 0) |
3001 | goto out_eio; | |
3002 | res->nlocations = 0; | |
3003 | while (res->nlocations < n) { | |
464ad6b1 | 3004 | u32 m; |
7aaa0b3b | 3005 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; |
683b57b4 | 3006 | |
c0eae66e BH |
3007 | p = xdr_inline_decode(xdr, 4); |
3008 | if (unlikely(!p)) | |
3009 | goto out_overflow; | |
cccddf4f | 3010 | m = be32_to_cpup(p); |
7aaa0b3b MN |
3011 | |
3012 | loc->nservers = 0; | |
3110ff80 | 3013 | dprintk("%s: servers ", __func__); |
7aaa0b3b MN |
3014 | while (loc->nservers < m) { |
3015 | struct nfs4_string *server = &loc->servers[loc->nservers]; | |
3016 | status = decode_opaque_inline(xdr, &server->len, &server->data); | |
3017 | if (unlikely(status != 0)) | |
3018 | goto out_eio; | |
3019 | dprintk("%s ", server->data); | |
3020 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) | |
3021 | loc->nservers++; | |
3022 | else { | |
464ad6b1 CL |
3023 | unsigned int i; |
3024 | dprintk("%s: using first %u of %u servers " | |
3025 | "returned for location %u\n", | |
3110ff80 | 3026 | __func__, |
464ad6b1 CL |
3027 | NFS4_FS_LOCATION_MAXSERVERS, |
3028 | m, res->nlocations); | |
7aaa0b3b | 3029 | for (i = loc->nservers; i < m; i++) { |
2e42c3e2 | 3030 | unsigned int len; |
7aaa0b3b MN |
3031 | char *data; |
3032 | status = decode_opaque_inline(xdr, &len, &data); | |
3033 | if (unlikely(status != 0)) | |
3034 | goto out_eio; | |
3035 | } | |
3036 | } | |
3037 | } | |
3038 | status = decode_pathname(xdr, &loc->rootpath); | |
683b57b4 TM |
3039 | if (unlikely(status != 0)) |
3040 | goto out_eio; | |
7aaa0b3b | 3041 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
683b57b4 TM |
3042 | res->nlocations++; |
3043 | } | |
409924e4 TM |
3044 | if (res->nlocations != 0) |
3045 | status = NFS_ATTR_FATTR_V4_REFERRAL; | |
683b57b4 | 3046 | out: |
3110ff80 | 3047 | dprintk("%s: fs_locations done, error = %d\n", __func__, status); |
683b57b4 | 3048 | return status; |
c0eae66e BH |
3049 | out_overflow: |
3050 | print_overflow_msg(__func__, xdr); | |
683b57b4 TM |
3051 | out_eio: |
3052 | status = -EIO; | |
3053 | goto out; | |
3054 | } | |
3055 | ||
1da177e4 LT |
3056 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
3057 | { | |
8687b63a | 3058 | __be32 *p; |
1da177e4 LT |
3059 | int status = 0; |
3060 | ||
3061 | *res = 0; | |
3062 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) | |
3063 | return -EIO; | |
3064 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { | |
c0eae66e BH |
3065 | p = xdr_inline_decode(xdr, 8); |
3066 | if (unlikely(!p)) | |
3067 | goto out_overflow; | |
cccddf4f | 3068 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3069 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; |
3070 | } | |
3110ff80 | 3071 | dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3072 | return status; |
c0eae66e BH |
3073 | out_overflow: |
3074 | print_overflow_msg(__func__, xdr); | |
3075 | return -EIO; | |
1da177e4 LT |
3076 | } |
3077 | ||
3078 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) | |
3079 | { | |
8687b63a | 3080 | __be32 *p; |
1da177e4 LT |
3081 | int status = 0; |
3082 | ||
3083 | *maxlink = 1; | |
3084 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) | |
3085 | return -EIO; | |
3086 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { | |
c0eae66e BH |
3087 | p = xdr_inline_decode(xdr, 4); |
3088 | if (unlikely(!p)) | |
3089 | goto out_overflow; | |
cccddf4f | 3090 | *maxlink = be32_to_cpup(p); |
1da177e4 LT |
3091 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; |
3092 | } | |
3110ff80 | 3093 | dprintk("%s: maxlink=%u\n", __func__, *maxlink); |
1da177e4 | 3094 | return status; |
c0eae66e BH |
3095 | out_overflow: |
3096 | print_overflow_msg(__func__, xdr); | |
3097 | return -EIO; | |
1da177e4 LT |
3098 | } |
3099 | ||
3100 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) | |
3101 | { | |
8687b63a | 3102 | __be32 *p; |
1da177e4 LT |
3103 | int status = 0; |
3104 | ||
3105 | *maxname = 1024; | |
3106 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) | |
3107 | return -EIO; | |
3108 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { | |
c0eae66e BH |
3109 | p = xdr_inline_decode(xdr, 4); |
3110 | if (unlikely(!p)) | |
3111 | goto out_overflow; | |
cccddf4f | 3112 | *maxname = be32_to_cpup(p); |
1da177e4 LT |
3113 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; |
3114 | } | |
3110ff80 | 3115 | dprintk("%s: maxname=%u\n", __func__, *maxname); |
1da177e4 | 3116 | return status; |
c0eae66e BH |
3117 | out_overflow: |
3118 | print_overflow_msg(__func__, xdr); | |
3119 | return -EIO; | |
1da177e4 LT |
3120 | } |
3121 | ||
3122 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
3123 | { | |
8687b63a | 3124 | __be32 *p; |
1da177e4 LT |
3125 | int status = 0; |
3126 | ||
3127 | *res = 1024; | |
3128 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) | |
3129 | return -EIO; | |
3130 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { | |
3131 | uint64_t maxread; | |
c0eae66e BH |
3132 | p = xdr_inline_decode(xdr, 8); |
3133 | if (unlikely(!p)) | |
3134 | goto out_overflow; | |
cccddf4f | 3135 | xdr_decode_hyper(p, &maxread); |
1da177e4 LT |
3136 | if (maxread > 0x7FFFFFFF) |
3137 | maxread = 0x7FFFFFFF; | |
3138 | *res = (uint32_t)maxread; | |
3139 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; | |
3140 | } | |
3110ff80 | 3141 | dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); |
1da177e4 | 3142 | return status; |
c0eae66e BH |
3143 | out_overflow: |
3144 | print_overflow_msg(__func__, xdr); | |
3145 | return -EIO; | |
1da177e4 LT |
3146 | } |
3147 | ||
3148 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
3149 | { | |
8687b63a | 3150 | __be32 *p; |
1da177e4 LT |
3151 | int status = 0; |
3152 | ||
3153 | *res = 1024; | |
3154 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) | |
3155 | return -EIO; | |
3156 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { | |
3157 | uint64_t maxwrite; | |
c0eae66e BH |
3158 | p = xdr_inline_decode(xdr, 8); |
3159 | if (unlikely(!p)) | |
3160 | goto out_overflow; | |
cccddf4f | 3161 | xdr_decode_hyper(p, &maxwrite); |
1da177e4 LT |
3162 | if (maxwrite > 0x7FFFFFFF) |
3163 | maxwrite = 0x7FFFFFFF; | |
3164 | *res = (uint32_t)maxwrite; | |
3165 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; | |
3166 | } | |
3110ff80 | 3167 | dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); |
1da177e4 | 3168 | return status; |
c0eae66e BH |
3169 | out_overflow: |
3170 | print_overflow_msg(__func__, xdr); | |
3171 | return -EIO; | |
1da177e4 LT |
3172 | } |
3173 | ||
bca79478 | 3174 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) |
1da177e4 | 3175 | { |
bca79478 | 3176 | uint32_t tmp; |
8687b63a | 3177 | __be32 *p; |
409924e4 | 3178 | int ret = 0; |
1da177e4 LT |
3179 | |
3180 | *mode = 0; | |
3181 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) | |
3182 | return -EIO; | |
3183 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { | |
c0eae66e BH |
3184 | p = xdr_inline_decode(xdr, 4); |
3185 | if (unlikely(!p)) | |
3186 | goto out_overflow; | |
cccddf4f | 3187 | tmp = be32_to_cpup(p); |
bca79478 | 3188 | *mode = tmp & ~S_IFMT; |
1da177e4 | 3189 | bitmap[1] &= ~FATTR4_WORD1_MODE; |
409924e4 | 3190 | ret = NFS_ATTR_FATTR_MODE; |
1da177e4 | 3191 | } |
3110ff80 | 3192 | dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); |
409924e4 | 3193 | return ret; |
c0eae66e BH |
3194 | out_overflow: |
3195 | print_overflow_msg(__func__, xdr); | |
3196 | return -EIO; | |
1da177e4 LT |
3197 | } |
3198 | ||
3199 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) | |
3200 | { | |
8687b63a | 3201 | __be32 *p; |
409924e4 | 3202 | int ret = 0; |
1da177e4 LT |
3203 | |
3204 | *nlink = 1; | |
3205 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) | |
3206 | return -EIO; | |
3207 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { | |
c0eae66e BH |
3208 | p = xdr_inline_decode(xdr, 4); |
3209 | if (unlikely(!p)) | |
3210 | goto out_overflow; | |
cccddf4f | 3211 | *nlink = be32_to_cpup(p); |
1da177e4 | 3212 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; |
409924e4 | 3213 | ret = NFS_ATTR_FATTR_NLINK; |
1da177e4 | 3214 | } |
3110ff80 | 3215 | dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); |
409924e4 | 3216 | return ret; |
c0eae66e BH |
3217 | out_overflow: |
3218 | print_overflow_msg(__func__, xdr); | |
3219 | return -EIO; | |
1da177e4 LT |
3220 | } |
3221 | ||
80e52ace TM |
3222 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, |
3223 | struct nfs_client *clp, uint32_t *uid, int may_sleep) | |
1da177e4 | 3224 | { |
8687b63a AV |
3225 | uint32_t len; |
3226 | __be32 *p; | |
409924e4 | 3227 | int ret = 0; |
1da177e4 LT |
3228 | |
3229 | *uid = -2; | |
3230 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) | |
3231 | return -EIO; | |
3232 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { | |
c0eae66e BH |
3233 | p = xdr_inline_decode(xdr, 4); |
3234 | if (unlikely(!p)) | |
3235 | goto out_overflow; | |
cccddf4f | 3236 | len = be32_to_cpup(p); |
c0eae66e BH |
3237 | p = xdr_inline_decode(xdr, len); |
3238 | if (unlikely(!p)) | |
3239 | goto out_overflow; | |
80e52ace TM |
3240 | if (!may_sleep) { |
3241 | /* do nothing */ | |
3242 | } else if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
3243 | if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) |
3244 | ret = NFS_ATTR_FATTR_OWNER; | |
3245 | else | |
1da177e4 | 3246 | dprintk("%s: nfs_map_name_to_uid failed!\n", |
3110ff80 | 3247 | __func__); |
1da177e4 | 3248 | } else |
fe82a183 | 3249 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3250 | __func__, len); |
1da177e4 LT |
3251 | bitmap[1] &= ~FATTR4_WORD1_OWNER; |
3252 | } | |
3110ff80 | 3253 | dprintk("%s: uid=%d\n", __func__, (int)*uid); |
409924e4 | 3254 | return ret; |
c0eae66e BH |
3255 | out_overflow: |
3256 | print_overflow_msg(__func__, xdr); | |
3257 | return -EIO; | |
1da177e4 LT |
3258 | } |
3259 | ||
80e52ace TM |
3260 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, |
3261 | struct nfs_client *clp, uint32_t *gid, int may_sleep) | |
1da177e4 | 3262 | { |
8687b63a AV |
3263 | uint32_t len; |
3264 | __be32 *p; | |
409924e4 | 3265 | int ret = 0; |
1da177e4 LT |
3266 | |
3267 | *gid = -2; | |
3268 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) | |
3269 | return -EIO; | |
3270 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { | |
c0eae66e BH |
3271 | p = xdr_inline_decode(xdr, 4); |
3272 | if (unlikely(!p)) | |
3273 | goto out_overflow; | |
cccddf4f | 3274 | len = be32_to_cpup(p); |
c0eae66e BH |
3275 | p = xdr_inline_decode(xdr, len); |
3276 | if (unlikely(!p)) | |
3277 | goto out_overflow; | |
80e52ace TM |
3278 | if (!may_sleep) { |
3279 | /* do nothing */ | |
3280 | } else if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
3281 | if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) |
3282 | ret = NFS_ATTR_FATTR_GROUP; | |
3283 | else | |
1da177e4 | 3284 | dprintk("%s: nfs_map_group_to_gid failed!\n", |
3110ff80 | 3285 | __func__); |
1da177e4 | 3286 | } else |
fe82a183 | 3287 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3288 | __func__, len); |
1da177e4 LT |
3289 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; |
3290 | } | |
3110ff80 | 3291 | dprintk("%s: gid=%d\n", __func__, (int)*gid); |
409924e4 | 3292 | return ret; |
c0eae66e BH |
3293 | out_overflow: |
3294 | print_overflow_msg(__func__, xdr); | |
3295 | return -EIO; | |
1da177e4 LT |
3296 | } |
3297 | ||
3298 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) | |
3299 | { | |
8687b63a AV |
3300 | uint32_t major = 0, minor = 0; |
3301 | __be32 *p; | |
409924e4 | 3302 | int ret = 0; |
1da177e4 LT |
3303 | |
3304 | *rdev = MKDEV(0,0); | |
3305 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) | |
3306 | return -EIO; | |
3307 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { | |
3308 | dev_t tmp; | |
3309 | ||
c0eae66e BH |
3310 | p = xdr_inline_decode(xdr, 8); |
3311 | if (unlikely(!p)) | |
3312 | goto out_overflow; | |
6f723f77 | 3313 | major = be32_to_cpup(p++); |
cccddf4f | 3314 | minor = be32_to_cpup(p); |
1da177e4 LT |
3315 | tmp = MKDEV(major, minor); |
3316 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) | |
3317 | *rdev = tmp; | |
3318 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; | |
409924e4 | 3319 | ret = NFS_ATTR_FATTR_RDEV; |
1da177e4 | 3320 | } |
3110ff80 | 3321 | dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); |
409924e4 | 3322 | return ret; |
c0eae66e BH |
3323 | out_overflow: |
3324 | print_overflow_msg(__func__, xdr); | |
3325 | return -EIO; | |
1da177e4 LT |
3326 | } |
3327 | ||
3328 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3329 | { | |
8687b63a | 3330 | __be32 *p; |
1da177e4 LT |
3331 | int status = 0; |
3332 | ||
3333 | *res = 0; | |
3334 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) | |
3335 | return -EIO; | |
3336 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { | |
c0eae66e BH |
3337 | p = xdr_inline_decode(xdr, 8); |
3338 | if (unlikely(!p)) | |
3339 | goto out_overflow; | |
cccddf4f | 3340 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3341 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; |
3342 | } | |
3110ff80 | 3343 | dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3344 | return status; |
c0eae66e BH |
3345 | out_overflow: |
3346 | print_overflow_msg(__func__, xdr); | |
3347 | return -EIO; | |
1da177e4 LT |
3348 | } |
3349 | ||
3350 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3351 | { | |
8687b63a | 3352 | __be32 *p; |
1da177e4 LT |
3353 | int status = 0; |
3354 | ||
3355 | *res = 0; | |
3356 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) | |
3357 | return -EIO; | |
3358 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { | |
c0eae66e BH |
3359 | p = xdr_inline_decode(xdr, 8); |
3360 | if (unlikely(!p)) | |
3361 | goto out_overflow; | |
cccddf4f | 3362 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3363 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; |
3364 | } | |
3110ff80 | 3365 | dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3366 | return status; |
c0eae66e BH |
3367 | out_overflow: |
3368 | print_overflow_msg(__func__, xdr); | |
3369 | return -EIO; | |
1da177e4 LT |
3370 | } |
3371 | ||
3372 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3373 | { | |
8687b63a | 3374 | __be32 *p; |
1da177e4 LT |
3375 | int status = 0; |
3376 | ||
3377 | *res = 0; | |
3378 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) | |
3379 | return -EIO; | |
3380 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { | |
c0eae66e BH |
3381 | p = xdr_inline_decode(xdr, 8); |
3382 | if (unlikely(!p)) | |
3383 | goto out_overflow; | |
cccddf4f | 3384 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3385 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; |
3386 | } | |
3110ff80 | 3387 | dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3388 | return status; |
c0eae66e BH |
3389 | out_overflow: |
3390 | print_overflow_msg(__func__, xdr); | |
3391 | return -EIO; | |
1da177e4 LT |
3392 | } |
3393 | ||
3394 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) | |
3395 | { | |
8687b63a | 3396 | __be32 *p; |
409924e4 | 3397 | int ret = 0; |
1da177e4 LT |
3398 | |
3399 | *used = 0; | |
3400 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) | |
3401 | return -EIO; | |
3402 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { | |
c0eae66e BH |
3403 | p = xdr_inline_decode(xdr, 8); |
3404 | if (unlikely(!p)) | |
3405 | goto out_overflow; | |
cccddf4f | 3406 | xdr_decode_hyper(p, used); |
1da177e4 | 3407 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; |
409924e4 | 3408 | ret = NFS_ATTR_FATTR_SPACE_USED; |
1da177e4 | 3409 | } |
3110ff80 | 3410 | dprintk("%s: space used=%Lu\n", __func__, |
1da177e4 | 3411 | (unsigned long long)*used); |
409924e4 | 3412 | return ret; |
c0eae66e BH |
3413 | out_overflow: |
3414 | print_overflow_msg(__func__, xdr); | |
3415 | return -EIO; | |
1da177e4 LT |
3416 | } |
3417 | ||
3418 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) | |
3419 | { | |
8687b63a | 3420 | __be32 *p; |
1da177e4 LT |
3421 | uint64_t sec; |
3422 | uint32_t nsec; | |
3423 | ||
c0eae66e BH |
3424 | p = xdr_inline_decode(xdr, 12); |
3425 | if (unlikely(!p)) | |
3426 | goto out_overflow; | |
3ceb4dbb | 3427 | p = xdr_decode_hyper(p, &sec); |
cccddf4f | 3428 | nsec = be32_to_cpup(p); |
1da177e4 LT |
3429 | time->tv_sec = (time_t)sec; |
3430 | time->tv_nsec = (long)nsec; | |
3431 | return 0; | |
c0eae66e BH |
3432 | out_overflow: |
3433 | print_overflow_msg(__func__, xdr); | |
3434 | return -EIO; | |
1da177e4 LT |
3435 | } |
3436 | ||
3437 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3438 | { | |
3439 | int status = 0; | |
3440 | ||
3441 | time->tv_sec = 0; | |
3442 | time->tv_nsec = 0; | |
3443 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) | |
3444 | return -EIO; | |
3445 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { | |
3446 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3447 | if (status == 0) |
3448 | status = NFS_ATTR_FATTR_ATIME; | |
1da177e4 LT |
3449 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; |
3450 | } | |
3110ff80 | 3451 | dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3452 | return status; |
3453 | } | |
3454 | ||
3455 | static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3456 | { | |
3457 | int status = 0; | |
3458 | ||
3459 | time->tv_sec = 0; | |
3460 | time->tv_nsec = 0; | |
3461 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) | |
3462 | return -EIO; | |
3463 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { | |
3464 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3465 | if (status == 0) |
3466 | status = NFS_ATTR_FATTR_CTIME; | |
1da177e4 LT |
3467 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; |
3468 | } | |
3110ff80 | 3469 | dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3470 | return status; |
3471 | } | |
3472 | ||
3473 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3474 | { | |
3475 | int status = 0; | |
3476 | ||
3477 | time->tv_sec = 0; | |
3478 | time->tv_nsec = 0; | |
3479 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) | |
3480 | return -EIO; | |
3481 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { | |
3482 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3483 | if (status == 0) |
3484 | status = NFS_ATTR_FATTR_MTIME; | |
1da177e4 LT |
3485 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; |
3486 | } | |
3110ff80 | 3487 | dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3488 | return status; |
3489 | } | |
3490 | ||
8687b63a | 3491 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
1da177e4 LT |
3492 | { |
3493 | unsigned int attrwords = XDR_QUADLEN(attrlen); | |
3494 | unsigned int nwords = xdr->p - savep; | |
3495 | ||
3496 | if (unlikely(attrwords != nwords)) { | |
fe82a183 CL |
3497 | dprintk("%s: server returned incorrect attribute length: " |
3498 | "%u %c %u\n", | |
3110ff80 | 3499 | __func__, |
1da177e4 LT |
3500 | attrwords << 2, |
3501 | (attrwords < nwords) ? '<' : '>', | |
3502 | nwords << 2); | |
3503 | return -EIO; | |
3504 | } | |
3505 | return 0; | |
3506 | } | |
3507 | ||
3508 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3509 | { | |
8687b63a | 3510 | __be32 *p; |
1da177e4 | 3511 | |
c0eae66e BH |
3512 | p = xdr_inline_decode(xdr, 20); |
3513 | if (unlikely(!p)) | |
3514 | goto out_overflow; | |
6f723f77 | 3515 | cinfo->atomic = be32_to_cpup(p++); |
3ceb4dbb | 3516 | p = xdr_decode_hyper(p, &cinfo->before); |
cccddf4f | 3517 | xdr_decode_hyper(p, &cinfo->after); |
1da177e4 | 3518 | return 0; |
c0eae66e BH |
3519 | out_overflow: |
3520 | print_overflow_msg(__func__, xdr); | |
3521 | return -EIO; | |
1da177e4 LT |
3522 | } |
3523 | ||
3524 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) | |
3525 | { | |
8687b63a | 3526 | __be32 *p; |
1da177e4 LT |
3527 | uint32_t supp, acc; |
3528 | int status; | |
3529 | ||
3530 | status = decode_op_hdr(xdr, OP_ACCESS); | |
3531 | if (status) | |
3532 | return status; | |
c0eae66e BH |
3533 | p = xdr_inline_decode(xdr, 8); |
3534 | if (unlikely(!p)) | |
3535 | goto out_overflow; | |
6f723f77 | 3536 | supp = be32_to_cpup(p++); |
cccddf4f | 3537 | acc = be32_to_cpup(p); |
1da177e4 LT |
3538 | access->supported = supp; |
3539 | access->access = acc; | |
3540 | return 0; | |
c0eae66e BH |
3541 | out_overflow: |
3542 | print_overflow_msg(__func__, xdr); | |
3543 | return -EIO; | |
1da177e4 LT |
3544 | } |
3545 | ||
07d30434 | 3546 | static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) |
1da177e4 | 3547 | { |
8687b63a | 3548 | __be32 *p; |
07d30434 BH |
3549 | |
3550 | p = xdr_inline_decode(xdr, len); | |
3551 | if (likely(p)) { | |
3552 | memcpy(buf, p, len); | |
3553 | return 0; | |
3554 | } | |
3555 | print_overflow_msg(__func__, xdr); | |
3556 | return -EIO; | |
3557 | } | |
3558 | ||
3559 | static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) | |
3560 | { | |
3561 | return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); | |
3562 | } | |
3563 | ||
3564 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3565 | { | |
1da177e4 LT |
3566 | int status; |
3567 | ||
3568 | status = decode_op_hdr(xdr, OP_CLOSE); | |
c1d51931 TM |
3569 | if (status != -EIO) |
3570 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
3571 | if (!status) |
3572 | status = decode_stateid(xdr, &res->stateid); | |
3573 | return status; | |
1da177e4 LT |
3574 | } |
3575 | ||
db942bbd BH |
3576 | static int decode_verifier(struct xdr_stream *xdr, void *verifier) |
3577 | { | |
3578 | return decode_opaque_fixed(xdr, verifier, 8); | |
1da177e4 LT |
3579 | } |
3580 | ||
3581 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3582 | { | |
1da177e4 LT |
3583 | int status; |
3584 | ||
3585 | status = decode_op_hdr(xdr, OP_COMMIT); | |
db942bbd BH |
3586 | if (!status) |
3587 | status = decode_verifier(xdr, res->verf->verifier); | |
3588 | return status; | |
1da177e4 LT |
3589 | } |
3590 | ||
3591 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3592 | { | |
8687b63a | 3593 | __be32 *p; |
1da177e4 LT |
3594 | uint32_t bmlen; |
3595 | int status; | |
3596 | ||
3597 | status = decode_op_hdr(xdr, OP_CREATE); | |
3598 | if (status) | |
3599 | return status; | |
3600 | if ((status = decode_change_info(xdr, cinfo))) | |
3601 | return status; | |
c0eae66e BH |
3602 | p = xdr_inline_decode(xdr, 4); |
3603 | if (unlikely(!p)) | |
3604 | goto out_overflow; | |
cccddf4f | 3605 | bmlen = be32_to_cpup(p); |
c0eae66e BH |
3606 | p = xdr_inline_decode(xdr, bmlen << 2); |
3607 | if (likely(p)) | |
3608 | return 0; | |
3609 | out_overflow: | |
3610 | print_overflow_msg(__func__, xdr); | |
3611 | return -EIO; | |
1da177e4 LT |
3612 | } |
3613 | ||
3614 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) | |
3615 | { | |
8687b63a | 3616 | __be32 *savep; |
6c0195a4 | 3617 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 LT |
3618 | int status; |
3619 | ||
3620 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3621 | goto xdr_error; | |
3622 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3623 | goto xdr_error; | |
3624 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3625 | goto xdr_error; | |
3626 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) | |
3627 | goto xdr_error; | |
3628 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) | |
3629 | goto xdr_error; | |
3630 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) | |
3631 | goto xdr_error; | |
3632 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) | |
3633 | goto xdr_error; | |
3634 | status = verify_attr_len(xdr, savep, attrlen); | |
3635 | xdr_error: | |
3110ff80 | 3636 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3637 | return status; |
3638 | } | |
6c0195a4 | 3639 | |
1da177e4 LT |
3640 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) |
3641 | { | |
8687b63a | 3642 | __be32 *savep; |
6c0195a4 | 3643 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3644 | int status; |
6c0195a4 | 3645 | |
1da177e4 LT |
3646 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3647 | goto xdr_error; | |
3648 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3649 | goto xdr_error; | |
3650 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3651 | goto xdr_error; | |
3652 | ||
3653 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) | |
3654 | goto xdr_error; | |
3655 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) | |
3656 | goto xdr_error; | |
3657 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) | |
3658 | goto xdr_error; | |
3659 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) | |
3660 | goto xdr_error; | |
3661 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) | |
3662 | goto xdr_error; | |
3663 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) | |
3664 | goto xdr_error; | |
3665 | ||
3666 | status = verify_attr_len(xdr, savep, attrlen); | |
3667 | xdr_error: | |
3110ff80 | 3668 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3669 | return status; |
3670 | } | |
3671 | ||
3672 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) | |
3673 | { | |
8687b63a | 3674 | __be32 *savep; |
6c0195a4 | 3675 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3676 | int status; |
6c0195a4 | 3677 | |
1da177e4 LT |
3678 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3679 | goto xdr_error; | |
3680 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3681 | goto xdr_error; | |
3682 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3683 | goto xdr_error; | |
3684 | ||
3685 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) | |
3686 | goto xdr_error; | |
3687 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) | |
3688 | goto xdr_error; | |
3689 | ||
3690 | status = verify_attr_len(xdr, savep, attrlen); | |
3691 | xdr_error: | |
3110ff80 | 3692 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3693 | return status; |
3694 | } | |
3695 | ||
80e52ace TM |
3696 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, |
3697 | const struct nfs_server *server, int may_sleep) | |
1da177e4 | 3698 | { |
8687b63a | 3699 | __be32 *savep; |
1da177e4 LT |
3700 | uint32_t attrlen, |
3701 | bitmap[2] = {0}, | |
3702 | type; | |
bca79478 TM |
3703 | int status; |
3704 | umode_t fmode = 0; | |
99baf625 | 3705 | uint64_t fileid; |
1da177e4 | 3706 | |
f26c7a78 TM |
3707 | status = decode_op_hdr(xdr, OP_GETATTR); |
3708 | if (status < 0) | |
1da177e4 | 3709 | goto xdr_error; |
f26c7a78 TM |
3710 | |
3711 | status = decode_attr_bitmap(xdr, bitmap); | |
3712 | if (status < 0) | |
1da177e4 LT |
3713 | goto xdr_error; |
3714 | ||
f26c7a78 TM |
3715 | status = decode_attr_length(xdr, &attrlen, &savep); |
3716 | if (status < 0) | |
1da177e4 LT |
3717 | goto xdr_error; |
3718 | ||
3719 | ||
f26c7a78 TM |
3720 | status = decode_attr_type(xdr, bitmap, &type); |
3721 | if (status < 0) | |
1da177e4 | 3722 | goto xdr_error; |
409924e4 TM |
3723 | fattr->mode = 0; |
3724 | if (status != 0) { | |
3725 | fattr->mode |= nfs_type2fmt[type]; | |
3726 | fattr->valid |= status; | |
3727 | } | |
1da177e4 | 3728 | |
f26c7a78 TM |
3729 | status = decode_attr_change(xdr, bitmap, &fattr->change_attr); |
3730 | if (status < 0) | |
1da177e4 | 3731 | goto xdr_error; |
409924e4 | 3732 | fattr->valid |= status; |
f26c7a78 TM |
3733 | |
3734 | status = decode_attr_size(xdr, bitmap, &fattr->size); | |
3735 | if (status < 0) | |
1da177e4 | 3736 | goto xdr_error; |
409924e4 | 3737 | fattr->valid |= status; |
f26c7a78 TM |
3738 | |
3739 | status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); | |
3740 | if (status < 0) | |
1da177e4 | 3741 | goto xdr_error; |
409924e4 | 3742 | fattr->valid |= status; |
f26c7a78 TM |
3743 | |
3744 | status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); | |
3745 | if (status < 0) | |
1da177e4 | 3746 | goto xdr_error; |
409924e4 | 3747 | fattr->valid |= status; |
f26c7a78 TM |
3748 | |
3749 | status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, | |
7aaa0b3b | 3750 | struct nfs4_fs_locations, |
f26c7a78 TM |
3751 | fattr)); |
3752 | if (status < 0) | |
683b57b4 | 3753 | goto xdr_error; |
409924e4 | 3754 | fattr->valid |= status; |
f26c7a78 TM |
3755 | |
3756 | status = decode_attr_mode(xdr, bitmap, &fmode); | |
3757 | if (status < 0) | |
1da177e4 | 3758 | goto xdr_error; |
409924e4 TM |
3759 | if (status != 0) { |
3760 | fattr->mode |= fmode; | |
3761 | fattr->valid |= status; | |
3762 | } | |
f26c7a78 TM |
3763 | |
3764 | status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); | |
3765 | if (status < 0) | |
1da177e4 | 3766 | goto xdr_error; |
409924e4 | 3767 | fattr->valid |= status; |
f26c7a78 | 3768 | |
80e52ace TM |
3769 | status = decode_attr_owner(xdr, bitmap, server->nfs_client, |
3770 | &fattr->uid, may_sleep); | |
f26c7a78 | 3771 | if (status < 0) |
1da177e4 | 3772 | goto xdr_error; |
409924e4 | 3773 | fattr->valid |= status; |
f26c7a78 | 3774 | |
80e52ace TM |
3775 | status = decode_attr_group(xdr, bitmap, server->nfs_client, |
3776 | &fattr->gid, may_sleep); | |
f26c7a78 | 3777 | if (status < 0) |
1da177e4 | 3778 | goto xdr_error; |
409924e4 | 3779 | fattr->valid |= status; |
f26c7a78 TM |
3780 | |
3781 | status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); | |
3782 | if (status < 0) | |
1da177e4 | 3783 | goto xdr_error; |
409924e4 | 3784 | fattr->valid |= status; |
f26c7a78 TM |
3785 | |
3786 | status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); | |
3787 | if (status < 0) | |
1da177e4 | 3788 | goto xdr_error; |
409924e4 | 3789 | fattr->valid |= status; |
f26c7a78 TM |
3790 | |
3791 | status = decode_attr_time_access(xdr, bitmap, &fattr->atime); | |
3792 | if (status < 0) | |
1da177e4 | 3793 | goto xdr_error; |
409924e4 | 3794 | fattr->valid |= status; |
f26c7a78 TM |
3795 | |
3796 | status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); | |
3797 | if (status < 0) | |
1da177e4 | 3798 | goto xdr_error; |
409924e4 | 3799 | fattr->valid |= status; |
f26c7a78 TM |
3800 | |
3801 | status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); | |
3802 | if (status < 0) | |
1da177e4 | 3803 | goto xdr_error; |
409924e4 | 3804 | fattr->valid |= status; |
f26c7a78 TM |
3805 | |
3806 | status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); | |
3807 | if (status < 0) | |
99baf625 | 3808 | goto xdr_error; |
409924e4 | 3809 | if (status != 0 && !(fattr->valid & status)) { |
99baf625 | 3810 | fattr->fileid = fileid; |
409924e4 TM |
3811 | fattr->valid |= status; |
3812 | } | |
f26c7a78 TM |
3813 | |
3814 | status = verify_attr_len(xdr, savep, attrlen); | |
1da177e4 | 3815 | xdr_error: |
3110ff80 | 3816 | dprintk("%s: xdr returned %d\n", __func__, -status); |
1da177e4 LT |
3817 | return status; |
3818 | } | |
3819 | ||
3820 | ||
3821 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) | |
3822 | { | |
8687b63a | 3823 | __be32 *savep; |
1da177e4 LT |
3824 | uint32_t attrlen, bitmap[2]; |
3825 | int status; | |
3826 | ||
3827 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3828 | goto xdr_error; | |
3829 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3830 | goto xdr_error; | |
3831 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3832 | goto xdr_error; | |
3833 | ||
3834 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ | |
3835 | ||
3836 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) | |
3837 | goto xdr_error; | |
3838 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) | |
3839 | goto xdr_error; | |
3840 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) | |
3841 | goto xdr_error; | |
3842 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; | |
3843 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) | |
3844 | goto xdr_error; | |
3845 | fsinfo->wtpref = fsinfo->wtmax; | |
3846 | ||
3847 | status = verify_attr_len(xdr, savep, attrlen); | |
3848 | xdr_error: | |
3110ff80 | 3849 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3850 | return status; |
3851 | } | |
3852 | ||
3853 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) | |
3854 | { | |
8687b63a | 3855 | __be32 *p; |
1da177e4 LT |
3856 | uint32_t len; |
3857 | int status; | |
3858 | ||
9936781d TM |
3859 | /* Zero handle first to allow comparisons */ |
3860 | memset(fh, 0, sizeof(*fh)); | |
3861 | ||
1da177e4 LT |
3862 | status = decode_op_hdr(xdr, OP_GETFH); |
3863 | if (status) | |
3864 | return status; | |
1da177e4 | 3865 | |
c0eae66e BH |
3866 | p = xdr_inline_decode(xdr, 4); |
3867 | if (unlikely(!p)) | |
3868 | goto out_overflow; | |
cccddf4f | 3869 | len = be32_to_cpup(p); |
1da177e4 LT |
3870 | if (len > NFS4_FHSIZE) |
3871 | return -EIO; | |
3872 | fh->size = len; | |
c0eae66e BH |
3873 | p = xdr_inline_decode(xdr, len); |
3874 | if (unlikely(!p)) | |
3875 | goto out_overflow; | |
99398d06 | 3876 | memcpy(fh->data, p, len); |
1da177e4 | 3877 | return 0; |
c0eae66e BH |
3878 | out_overflow: |
3879 | print_overflow_msg(__func__, xdr); | |
3880 | return -EIO; | |
1da177e4 LT |
3881 | } |
3882 | ||
3883 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3884 | { | |
3885 | int status; | |
6c0195a4 | 3886 | |
1da177e4 LT |
3887 | status = decode_op_hdr(xdr, OP_LINK); |
3888 | if (status) | |
3889 | return status; | |
3890 | return decode_change_info(xdr, cinfo); | |
3891 | } | |
3892 | ||
3893 | /* | |
3894 | * We create the owner, so we know a proper owner.id length is 4. | |
3895 | */ | |
911d1aaf | 3896 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
1da177e4 | 3897 | { |
911d1aaf | 3898 | uint64_t offset, length, clientid; |
8687b63a | 3899 | __be32 *p; |
911d1aaf | 3900 | uint32_t namelen, type; |
1da177e4 | 3901 | |
c0eae66e BH |
3902 | p = xdr_inline_decode(xdr, 32); |
3903 | if (unlikely(!p)) | |
3904 | goto out_overflow; | |
3ceb4dbb BH |
3905 | p = xdr_decode_hyper(p, &offset); |
3906 | p = xdr_decode_hyper(p, &length); | |
6f723f77 | 3907 | type = be32_to_cpup(p++); |
911d1aaf TM |
3908 | if (fl != NULL) { |
3909 | fl->fl_start = (loff_t)offset; | |
3910 | fl->fl_end = fl->fl_start + (loff_t)length - 1; | |
3911 | if (length == ~(uint64_t)0) | |
3912 | fl->fl_end = OFFSET_MAX; | |
3913 | fl->fl_type = F_WRLCK; | |
3914 | if (type & 1) | |
3915 | fl->fl_type = F_RDLCK; | |
3916 | fl->fl_pid = 0; | |
3917 | } | |
3ceb4dbb | 3918 | p = xdr_decode_hyper(p, &clientid); |
cccddf4f | 3919 | namelen = be32_to_cpup(p); |
c0eae66e BH |
3920 | p = xdr_inline_decode(xdr, namelen); |
3921 | if (likely(p)) | |
3922 | return -NFS4ERR_DENIED; | |
3923 | out_overflow: | |
3924 | print_overflow_msg(__func__, xdr); | |
3925 | return -EIO; | |
1da177e4 LT |
3926 | } |
3927 | ||
911d1aaf | 3928 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
1da177e4 | 3929 | { |
1da177e4 LT |
3930 | int status; |
3931 | ||
3932 | status = decode_op_hdr(xdr, OP_LOCK); | |
c1d51931 TM |
3933 | if (status == -EIO) |
3934 | goto out; | |
1da177e4 | 3935 | if (status == 0) { |
07d30434 BH |
3936 | status = decode_stateid(xdr, &res->stateid); |
3937 | if (unlikely(status)) | |
3938 | goto out; | |
1da177e4 | 3939 | } else if (status == -NFS4ERR_DENIED) |
c1d51931 TM |
3940 | status = decode_lock_denied(xdr, NULL); |
3941 | if (res->open_seqid != NULL) | |
3942 | nfs_increment_open_seqid(status, res->open_seqid); | |
3943 | nfs_increment_lock_seqid(status, res->lock_seqid); | |
3944 | out: | |
1da177e4 LT |
3945 | return status; |
3946 | } | |
3947 | ||
911d1aaf | 3948 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
1da177e4 LT |
3949 | { |
3950 | int status; | |
3951 | status = decode_op_hdr(xdr, OP_LOCKT); | |
3952 | if (status == -NFS4ERR_DENIED) | |
911d1aaf | 3953 | return decode_lock_denied(xdr, res->denied); |
1da177e4 LT |
3954 | return status; |
3955 | } | |
3956 | ||
911d1aaf | 3957 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
1da177e4 | 3958 | { |
1da177e4 LT |
3959 | int status; |
3960 | ||
3961 | status = decode_op_hdr(xdr, OP_LOCKU); | |
c1d51931 TM |
3962 | if (status != -EIO) |
3963 | nfs_increment_lock_seqid(status, res->seqid); | |
07d30434 BH |
3964 | if (status == 0) |
3965 | status = decode_stateid(xdr, &res->stateid); | |
1da177e4 LT |
3966 | return status; |
3967 | } | |
3968 | ||
3969 | static int decode_lookup(struct xdr_stream *xdr) | |
3970 | { | |
3971 | return decode_op_hdr(xdr, OP_LOOKUP); | |
3972 | } | |
3973 | ||
3974 | /* This is too sick! */ | |
3975 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) | |
3976 | { | |
05d564fe | 3977 | __be32 *p; |
1da177e4 LT |
3978 | uint32_t limit_type, nblocks, blocksize; |
3979 | ||
c0eae66e BH |
3980 | p = xdr_inline_decode(xdr, 12); |
3981 | if (unlikely(!p)) | |
3982 | goto out_overflow; | |
6f723f77 | 3983 | limit_type = be32_to_cpup(p++); |
1da177e4 | 3984 | switch (limit_type) { |
05d564fe | 3985 | case 1: |
cccddf4f | 3986 | xdr_decode_hyper(p, maxsize); |
05d564fe AA |
3987 | break; |
3988 | case 2: | |
6f723f77 | 3989 | nblocks = be32_to_cpup(p++); |
cccddf4f | 3990 | blocksize = be32_to_cpup(p); |
05d564fe | 3991 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; |
1da177e4 LT |
3992 | } |
3993 | return 0; | |
c0eae66e BH |
3994 | out_overflow: |
3995 | print_overflow_msg(__func__, xdr); | |
3996 | return -EIO; | |
1da177e4 LT |
3997 | } |
3998 | ||
3999 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) | |
4000 | { | |
05d564fe AA |
4001 | __be32 *p; |
4002 | uint32_t delegation_type; | |
07d30434 | 4003 | int status; |
1da177e4 | 4004 | |
c0eae66e BH |
4005 | p = xdr_inline_decode(xdr, 4); |
4006 | if (unlikely(!p)) | |
4007 | goto out_overflow; | |
cccddf4f | 4008 | delegation_type = be32_to_cpup(p); |
1da177e4 LT |
4009 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { |
4010 | res->delegation_type = 0; | |
4011 | return 0; | |
4012 | } | |
07d30434 BH |
4013 | status = decode_stateid(xdr, &res->delegation); |
4014 | if (unlikely(status)) | |
4015 | return status; | |
c0eae66e BH |
4016 | p = xdr_inline_decode(xdr, 4); |
4017 | if (unlikely(!p)) | |
4018 | goto out_overflow; | |
cccddf4f | 4019 | res->do_recall = be32_to_cpup(p); |
05d564fe | 4020 | |
1da177e4 | 4021 | switch (delegation_type) { |
05d564fe AA |
4022 | case NFS4_OPEN_DELEGATE_READ: |
4023 | res->delegation_type = FMODE_READ; | |
4024 | break; | |
4025 | case NFS4_OPEN_DELEGATE_WRITE: | |
4026 | res->delegation_type = FMODE_WRITE|FMODE_READ; | |
4027 | if (decode_space_limit(xdr, &res->maxsize) < 0) | |
1da177e4 LT |
4028 | return -EIO; |
4029 | } | |
7539bbab | 4030 | return decode_ace(xdr, NULL, res->server->nfs_client); |
c0eae66e BH |
4031 | out_overflow: |
4032 | print_overflow_msg(__func__, xdr); | |
4033 | return -EIO; | |
1da177e4 LT |
4034 | } |
4035 | ||
4036 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) | |
4037 | { | |
05d564fe | 4038 | __be32 *p; |
aa53ed54 | 4039 | uint32_t savewords, bmlen, i; |
05d564fe | 4040 | int status; |
1da177e4 | 4041 | |
05d564fe | 4042 | status = decode_op_hdr(xdr, OP_OPEN); |
c1d51931 TM |
4043 | if (status != -EIO) |
4044 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
4045 | if (!status) |
4046 | status = decode_stateid(xdr, &res->stateid); | |
4047 | if (unlikely(status)) | |
05d564fe | 4048 | return status; |
1da177e4 | 4049 | |
05d564fe | 4050 | decode_change_info(xdr, &res->cinfo); |
1da177e4 | 4051 | |
c0eae66e BH |
4052 | p = xdr_inline_decode(xdr, 8); |
4053 | if (unlikely(!p)) | |
4054 | goto out_overflow; | |
6f723f77 | 4055 | res->rflags = be32_to_cpup(p++); |
cccddf4f | 4056 | bmlen = be32_to_cpup(p); |
05d564fe AA |
4057 | if (bmlen > 10) |
4058 | goto xdr_error; | |
1da177e4 | 4059 | |
c0eae66e BH |
4060 | p = xdr_inline_decode(xdr, bmlen << 2); |
4061 | if (unlikely(!p)) | |
4062 | goto out_overflow; | |
aa53ed54 JL |
4063 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
4064 | for (i = 0; i < savewords; ++i) | |
6f723f77 | 4065 | res->attrset[i] = be32_to_cpup(p++); |
aa53ed54 JL |
4066 | for (; i < NFS4_BITMAP_SIZE; i++) |
4067 | res->attrset[i] = 0; | |
4068 | ||
1da177e4 LT |
4069 | return decode_delegation(xdr, res); |
4070 | xdr_error: | |
3110ff80 | 4071 | dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); |
1da177e4 | 4072 | return -EIO; |
c0eae66e BH |
4073 | out_overflow: |
4074 | print_overflow_msg(__func__, xdr); | |
4075 | return -EIO; | |
1da177e4 LT |
4076 | } |
4077 | ||
4078 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) | |
4079 | { | |
1da177e4 LT |
4080 | int status; |
4081 | ||
05d564fe | 4082 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); |
c1d51931 TM |
4083 | if (status != -EIO) |
4084 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
4085 | if (!status) |
4086 | status = decode_stateid(xdr, &res->stateid); | |
4087 | return status; | |
1da177e4 LT |
4088 | } |
4089 | ||
4090 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) | |
4091 | { | |
1da177e4 LT |
4092 | int status; |
4093 | ||
4094 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); | |
c1d51931 TM |
4095 | if (status != -EIO) |
4096 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
4097 | if (!status) |
4098 | status = decode_stateid(xdr, &res->stateid); | |
4099 | return status; | |
1da177e4 LT |
4100 | } |
4101 | ||
4102 | static int decode_putfh(struct xdr_stream *xdr) | |
4103 | { | |
4104 | return decode_op_hdr(xdr, OP_PUTFH); | |
4105 | } | |
4106 | ||
4107 | static int decode_putrootfh(struct xdr_stream *xdr) | |
4108 | { | |
4109 | return decode_op_hdr(xdr, OP_PUTROOTFH); | |
4110 | } | |
4111 | ||
4112 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) | |
4113 | { | |
4114 | struct kvec *iov = req->rq_rcv_buf.head; | |
8687b63a | 4115 | __be32 *p; |
1da177e4 LT |
4116 | uint32_t count, eof, recvd, hdrlen; |
4117 | int status; | |
4118 | ||
4119 | status = decode_op_hdr(xdr, OP_READ); | |
4120 | if (status) | |
4121 | return status; | |
c0eae66e BH |
4122 | p = xdr_inline_decode(xdr, 8); |
4123 | if (unlikely(!p)) | |
4124 | goto out_overflow; | |
6f723f77 | 4125 | eof = be32_to_cpup(p++); |
cccddf4f | 4126 | count = be32_to_cpup(p); |
1da177e4 LT |
4127 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; |
4128 | recvd = req->rq_rcv_buf.len - hdrlen; | |
4129 | if (count > recvd) { | |
fe82a183 | 4130 | dprintk("NFS: server cheating in read reply: " |
1da177e4 LT |
4131 | "count %u > recvd %u\n", count, recvd); |
4132 | count = recvd; | |
4133 | eof = 0; | |
4134 | } | |
4135 | xdr_read_pages(xdr, count); | |
4136 | res->eof = eof; | |
4137 | res->count = count; | |
4138 | return 0; | |
c0eae66e BH |
4139 | out_overflow: |
4140 | print_overflow_msg(__func__, xdr); | |
4141 | return -EIO; | |
1da177e4 LT |
4142 | } |
4143 | ||
4144 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) | |
4145 | { | |
4146 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
4147 | struct page *page = *rcvbuf->pages; | |
4148 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
4149 | size_t hdrlen; |
4150 | u32 recvd, pglen = rcvbuf->page_len; | |
8687b63a | 4151 | __be32 *end, *entry, *p, *kaddr; |
7bda2cdf | 4152 | unsigned int nr = 0; |
bcecff77 | 4153 | int status; |
1da177e4 LT |
4154 | |
4155 | status = decode_op_hdr(xdr, OP_READDIR); | |
db942bbd BH |
4156 | if (!status) |
4157 | status = decode_verifier(xdr, readdir->verifier.data); | |
4158 | if (unlikely(status)) | |
1da177e4 | 4159 | return status; |
44109241 FI |
4160 | dprintk("%s: verifier = %08x:%08x\n", |
4161 | __func__, | |
eadf4598 TM |
4162 | ((u32 *)readdir->verifier.data)[0], |
4163 | ((u32 *)readdir->verifier.data)[1]); | |
4164 | ||
1da177e4 | 4165 | |
db942bbd | 4166 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; |
1da177e4 LT |
4167 | recvd = rcvbuf->len - hdrlen; |
4168 | if (pglen > recvd) | |
4169 | pglen = recvd; | |
4170 | xdr_read_pages(xdr, pglen); | |
4171 | ||
4172 | BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); | |
8687b63a | 4173 | kaddr = p = kmap_atomic(page, KM_USER0); |
e8896495 | 4174 | end = p + ((pglen + readdir->pgbase) >> 2); |
1da177e4 | 4175 | entry = p; |
7bda2cdf JL |
4176 | |
4177 | /* Make sure the packet actually has a value_follows and EOF entry */ | |
4178 | if ((entry + 1) > end) | |
4179 | goto short_pkt; | |
4180 | ||
4181 | for (; *p++; nr++) { | |
bcecff77 | 4182 | u32 len, attrlen, xlen; |
e8896495 | 4183 | if (end - p < 3) |
1da177e4 | 4184 | goto short_pkt; |
eadf4598 | 4185 | dprintk("cookie = %Lu, ", *((unsigned long long *)p)); |
1da177e4 LT |
4186 | p += 2; /* cookie */ |
4187 | len = ntohl(*p++); /* filename length */ | |
4188 | if (len > NFS4_MAXNAMLEN) { | |
fe82a183 CL |
4189 | dprintk("NFS: giant filename in readdir (len 0x%x)\n", |
4190 | len); | |
1da177e4 LT |
4191 | goto err_unmap; |
4192 | } | |
e8896495 DH |
4193 | xlen = XDR_QUADLEN(len); |
4194 | if (end - p < xlen + 1) | |
1da177e4 | 4195 | goto short_pkt; |
e8896495 DH |
4196 | dprintk("filename = %*s\n", len, (char *)p); |
4197 | p += xlen; | |
1da177e4 | 4198 | len = ntohl(*p++); /* bitmap length */ |
e8896495 | 4199 | if (end - p < len + 1) |
1da177e4 | 4200 | goto short_pkt; |
e8896495 | 4201 | p += len; |
1da177e4 | 4202 | attrlen = XDR_QUADLEN(ntohl(*p++)); |
e8896495 | 4203 | if (end - p < attrlen + 2) |
1da177e4 | 4204 | goto short_pkt; |
e8896495 | 4205 | p += attrlen; /* attributes */ |
1da177e4 LT |
4206 | entry = p; |
4207 | } | |
7bda2cdf JL |
4208 | /* |
4209 | * Apparently some server sends responses that are a valid size, but | |
4210 | * contain no entries, and have value_follows==0 and EOF==0. For | |
4211 | * those, just set the EOF marker. | |
4212 | */ | |
4213 | if (!nr && entry[1] == 0) { | |
4214 | dprintk("NFS: readdir reply truncated!\n"); | |
4215 | entry[1] = 1; | |
4216 | } | |
6c0195a4 | 4217 | out: |
1da177e4 LT |
4218 | kunmap_atomic(kaddr, KM_USER0); |
4219 | return 0; | |
4220 | short_pkt: | |
7bda2cdf JL |
4221 | /* |
4222 | * When we get a short packet there are 2 possibilities. We can | |
4223 | * return an error, or fix up the response to look like a valid | |
4224 | * response and return what we have so far. If there are no | |
4225 | * entries and the packet was short, then return -EIO. If there | |
4226 | * are valid entries in the response, return them and pretend that | |
4227 | * the call was successful, but incomplete. The caller can retry the | |
4228 | * readdir starting at the last cookie. | |
4229 | */ | |
3110ff80 | 4230 | dprintk("%s: short packet at entry %d\n", __func__, nr); |
1da177e4 | 4231 | entry[0] = entry[1] = 0; |
7bda2cdf JL |
4232 | if (nr) |
4233 | goto out; | |
1da177e4 LT |
4234 | err_unmap: |
4235 | kunmap_atomic(kaddr, KM_USER0); | |
4236 | return -errno_NFSERR_IO; | |
4237 | } | |
4238 | ||
4239 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) | |
4240 | { | |
4241 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
4242 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
4243 | size_t hdrlen; |
4244 | u32 len, recvd; | |
8687b63a | 4245 | __be32 *p; |
1da177e4 LT |
4246 | char *kaddr; |
4247 | int status; | |
4248 | ||
4249 | status = decode_op_hdr(xdr, OP_READLINK); | |
4250 | if (status) | |
4251 | return status; | |
4252 | ||
4253 | /* Convert length of symlink */ | |
c0eae66e BH |
4254 | p = xdr_inline_decode(xdr, 4); |
4255 | if (unlikely(!p)) | |
4256 | goto out_overflow; | |
cccddf4f | 4257 | len = be32_to_cpup(p); |
1da177e4 | 4258 | if (len >= rcvbuf->page_len || len <= 0) { |
fe82a183 | 4259 | dprintk("nfs: server returned giant symlink!\n"); |
1da177e4 LT |
4260 | return -ENAMETOOLONG; |
4261 | } | |
4262 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; | |
4263 | recvd = req->rq_rcv_buf.len - hdrlen; | |
4264 | if (recvd < len) { | |
fe82a183 | 4265 | dprintk("NFS: server cheating in readlink reply: " |
1da177e4 LT |
4266 | "count %u > recvd %u\n", len, recvd); |
4267 | return -EIO; | |
4268 | } | |
4269 | xdr_read_pages(xdr, len); | |
4270 | /* | |
4271 | * The XDR encode routine has set things up so that | |
4272 | * the link text will be copied directly into the | |
4273 | * buffer. We just have to do overflow-checking, | |
4274 | * and and null-terminate the text (the VFS expects | |
4275 | * null-termination). | |
4276 | */ | |
4277 | kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); | |
4278 | kaddr[len+rcvbuf->page_base] = '\0'; | |
4279 | kunmap_atomic(kaddr, KM_USER0); | |
4280 | return 0; | |
c0eae66e BH |
4281 | out_overflow: |
4282 | print_overflow_msg(__func__, xdr); | |
4283 | return -EIO; | |
1da177e4 LT |
4284 | } |
4285 | ||
4286 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
4287 | { | |
4288 | int status; | |
4289 | ||
4290 | status = decode_op_hdr(xdr, OP_REMOVE); | |
4291 | if (status) | |
4292 | goto out; | |
4293 | status = decode_change_info(xdr, cinfo); | |
4294 | out: | |
4295 | return status; | |
4296 | } | |
4297 | ||
4298 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, | |
4299 | struct nfs4_change_info *new_cinfo) | |
4300 | { | |
4301 | int status; | |
4302 | ||
4303 | status = decode_op_hdr(xdr, OP_RENAME); | |
4304 | if (status) | |
4305 | goto out; | |
4306 | if ((status = decode_change_info(xdr, old_cinfo))) | |
4307 | goto out; | |
4308 | status = decode_change_info(xdr, new_cinfo); | |
4309 | out: | |
4310 | return status; | |
4311 | } | |
4312 | ||
4313 | static int decode_renew(struct xdr_stream *xdr) | |
4314 | { | |
4315 | return decode_op_hdr(xdr, OP_RENEW); | |
4316 | } | |
4317 | ||
56ae19f3 TM |
4318 | static int |
4319 | decode_restorefh(struct xdr_stream *xdr) | |
4320 | { | |
4321 | return decode_op_hdr(xdr, OP_RESTOREFH); | |
4322 | } | |
4323 | ||
029d105e BF |
4324 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
4325 | size_t *acl_len) | |
4326 | { | |
8687b63a | 4327 | __be32 *savep; |
029d105e BF |
4328 | uint32_t attrlen, |
4329 | bitmap[2] = {0}; | |
4330 | struct kvec *iov = req->rq_rcv_buf.head; | |
4331 | int status; | |
4332 | ||
4333 | *acl_len = 0; | |
4334 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
4335 | goto out; | |
4336 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
4337 | goto out; | |
4338 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
4339 | goto out; | |
4340 | ||
4341 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) | |
4342 | return -EIO; | |
4343 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { | |
bcecff77 CL |
4344 | size_t hdrlen; |
4345 | u32 recvd; | |
029d105e BF |
4346 | |
4347 | /* We ignore &savep and don't do consistency checks on | |
4348 | * the attr length. Let userspace figure it out.... */ | |
4349 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; | |
4350 | recvd = req->rq_rcv_buf.len - hdrlen; | |
4351 | if (attrlen > recvd) { | |
fe82a183 | 4352 | dprintk("NFS: server cheating in getattr" |
029d105e BF |
4353 | " acl reply: attrlen %u > recvd %u\n", |
4354 | attrlen, recvd); | |
4355 | return -EINVAL; | |
4356 | } | |
c04871e6 | 4357 | xdr_read_pages(xdr, attrlen); |
029d105e | 4358 | *acl_len = attrlen; |
8c233cf9 BF |
4359 | } else |
4360 | status = -EOPNOTSUPP; | |
029d105e BF |
4361 | |
4362 | out: | |
4363 | return status; | |
4364 | } | |
4365 | ||
1da177e4 LT |
4366 | static int |
4367 | decode_savefh(struct xdr_stream *xdr) | |
4368 | { | |
4369 | return decode_op_hdr(xdr, OP_SAVEFH); | |
4370 | } | |
4371 | ||
9e9ecc03 | 4372 | static int decode_setattr(struct xdr_stream *xdr) |
1da177e4 | 4373 | { |
8687b63a | 4374 | __be32 *p; |
1da177e4 LT |
4375 | uint32_t bmlen; |
4376 | int status; | |
4377 | ||
1da177e4 LT |
4378 | status = decode_op_hdr(xdr, OP_SETATTR); |
4379 | if (status) | |
4380 | return status; | |
c0eae66e BH |
4381 | p = xdr_inline_decode(xdr, 4); |
4382 | if (unlikely(!p)) | |
4383 | goto out_overflow; | |
cccddf4f | 4384 | bmlen = be32_to_cpup(p); |
c0eae66e BH |
4385 | p = xdr_inline_decode(xdr, bmlen << 2); |
4386 | if (likely(p)) | |
4387 | return 0; | |
4388 | out_overflow: | |
4389 | print_overflow_msg(__func__, xdr); | |
4390 | return -EIO; | |
1da177e4 LT |
4391 | } |
4392 | ||
adfa6f98 | 4393 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) |
1da177e4 | 4394 | { |
8687b63a | 4395 | __be32 *p; |
1da177e4 LT |
4396 | uint32_t opnum; |
4397 | int32_t nfserr; | |
4398 | ||
c0eae66e BH |
4399 | p = xdr_inline_decode(xdr, 8); |
4400 | if (unlikely(!p)) | |
4401 | goto out_overflow; | |
6f723f77 | 4402 | opnum = be32_to_cpup(p++); |
1da177e4 | 4403 | if (opnum != OP_SETCLIENTID) { |
fe82a183 | 4404 | dprintk("nfs: decode_setclientid: Server returned operation" |
6c0195a4 | 4405 | " %d\n", opnum); |
1da177e4 LT |
4406 | return -EIO; |
4407 | } | |
cccddf4f | 4408 | nfserr = be32_to_cpup(p); |
1da177e4 | 4409 | if (nfserr == NFS_OK) { |
c0eae66e BH |
4410 | p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); |
4411 | if (unlikely(!p)) | |
4412 | goto out_overflow; | |
3ceb4dbb | 4413 | p = xdr_decode_hyper(p, &clp->cl_clientid); |
99398d06 | 4414 | memcpy(clp->cl_confirm.data, p, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
4415 | } else if (nfserr == NFSERR_CLID_INUSE) { |
4416 | uint32_t len; | |
4417 | ||
4418 | /* skip netid string */ | |
c0eae66e BH |
4419 | p = xdr_inline_decode(xdr, 4); |
4420 | if (unlikely(!p)) | |
4421 | goto out_overflow; | |
cccddf4f | 4422 | len = be32_to_cpup(p); |
c0eae66e BH |
4423 | p = xdr_inline_decode(xdr, len); |
4424 | if (unlikely(!p)) | |
4425 | goto out_overflow; | |
1da177e4 LT |
4426 | |
4427 | /* skip uaddr string */ | |
c0eae66e BH |
4428 | p = xdr_inline_decode(xdr, 4); |
4429 | if (unlikely(!p)) | |
4430 | goto out_overflow; | |
cccddf4f | 4431 | len = be32_to_cpup(p); |
c0eae66e BH |
4432 | p = xdr_inline_decode(xdr, len); |
4433 | if (unlikely(!p)) | |
4434 | goto out_overflow; | |
1da177e4 LT |
4435 | return -NFSERR_CLID_INUSE; |
4436 | } else | |
856dff3d | 4437 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
4438 | |
4439 | return 0; | |
c0eae66e BH |
4440 | out_overflow: |
4441 | print_overflow_msg(__func__, xdr); | |
4442 | return -EIO; | |
1da177e4 LT |
4443 | } |
4444 | ||
4445 | static int decode_setclientid_confirm(struct xdr_stream *xdr) | |
4446 | { | |
4447 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); | |
4448 | } | |
4449 | ||
4450 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) | |
4451 | { | |
8687b63a | 4452 | __be32 *p; |
1da177e4 LT |
4453 | int status; |
4454 | ||
4455 | status = decode_op_hdr(xdr, OP_WRITE); | |
4456 | if (status) | |
4457 | return status; | |
4458 | ||
c0eae66e BH |
4459 | p = xdr_inline_decode(xdr, 16); |
4460 | if (unlikely(!p)) | |
4461 | goto out_overflow; | |
6f723f77 BH |
4462 | res->count = be32_to_cpup(p++); |
4463 | res->verf->committed = be32_to_cpup(p++); | |
99398d06 | 4464 | memcpy(res->verf->verifier, p, 8); |
1da177e4 | 4465 | return 0; |
c0eae66e BH |
4466 | out_overflow: |
4467 | print_overflow_msg(__func__, xdr); | |
4468 | return -EIO; | |
1da177e4 LT |
4469 | } |
4470 | ||
4471 | static int decode_delegreturn(struct xdr_stream *xdr) | |
4472 | { | |
4473 | return decode_op_hdr(xdr, OP_DELEGRETURN); | |
4474 | } | |
4475 | ||
99fe60d0 BH |
4476 | #if defined(CONFIG_NFS_V4_1) |
4477 | static int decode_exchange_id(struct xdr_stream *xdr, | |
4478 | struct nfs41_exchange_id_res *res) | |
4479 | { | |
4480 | __be32 *p; | |
4481 | uint32_t dummy; | |
2460ba57 | 4482 | char *dummy_str; |
99fe60d0 BH |
4483 | int status; |
4484 | struct nfs_client *clp = res->client; | |
4485 | ||
4486 | status = decode_op_hdr(xdr, OP_EXCHANGE_ID); | |
4487 | if (status) | |
4488 | return status; | |
4489 | ||
c0eae66e BH |
4490 | p = xdr_inline_decode(xdr, 8); |
4491 | if (unlikely(!p)) | |
4492 | goto out_overflow; | |
cccddf4f | 4493 | xdr_decode_hyper(p, &clp->cl_ex_clid); |
c0eae66e BH |
4494 | p = xdr_inline_decode(xdr, 12); |
4495 | if (unlikely(!p)) | |
4496 | goto out_overflow; | |
6f723f77 BH |
4497 | clp->cl_seqid = be32_to_cpup(p++); |
4498 | clp->cl_exchange_flags = be32_to_cpup(p++); | |
99fe60d0 BH |
4499 | |
4500 | /* We ask for SP4_NONE */ | |
cccddf4f | 4501 | dummy = be32_to_cpup(p); |
99fe60d0 BH |
4502 | if (dummy != SP4_NONE) |
4503 | return -EIO; | |
4504 | ||
4505 | /* Throw away minor_id */ | |
c0eae66e BH |
4506 | p = xdr_inline_decode(xdr, 8); |
4507 | if (unlikely(!p)) | |
4508 | goto out_overflow; | |
99fe60d0 BH |
4509 | |
4510 | /* Throw away Major id */ | |
2460ba57 BH |
4511 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); |
4512 | if (unlikely(status)) | |
4513 | return status; | |
99fe60d0 BH |
4514 | |
4515 | /* Throw away server_scope */ | |
2460ba57 BH |
4516 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); |
4517 | if (unlikely(status)) | |
4518 | return status; | |
99fe60d0 BH |
4519 | |
4520 | /* Throw away Implementation id array */ | |
2460ba57 BH |
4521 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); |
4522 | if (unlikely(status)) | |
4523 | return status; | |
99fe60d0 BH |
4524 | |
4525 | return 0; | |
c0eae66e BH |
4526 | out_overflow: |
4527 | print_overflow_msg(__func__, xdr); | |
4528 | return -EIO; | |
99fe60d0 | 4529 | } |
fc931582 AA |
4530 | |
4531 | static int decode_chan_attrs(struct xdr_stream *xdr, | |
4532 | struct nfs4_channel_attrs *attrs) | |
4533 | { | |
4534 | __be32 *p; | |
4535 | u32 nr_attrs; | |
4536 | ||
c0eae66e BH |
4537 | p = xdr_inline_decode(xdr, 28); |
4538 | if (unlikely(!p)) | |
4539 | goto out_overflow; | |
6f723f77 BH |
4540 | attrs->headerpadsz = be32_to_cpup(p++); |
4541 | attrs->max_rqst_sz = be32_to_cpup(p++); | |
4542 | attrs->max_resp_sz = be32_to_cpup(p++); | |
4543 | attrs->max_resp_sz_cached = be32_to_cpup(p++); | |
4544 | attrs->max_ops = be32_to_cpup(p++); | |
4545 | attrs->max_reqs = be32_to_cpup(p++); | |
cccddf4f | 4546 | nr_attrs = be32_to_cpup(p); |
fc931582 AA |
4547 | if (unlikely(nr_attrs > 1)) { |
4548 | printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", | |
4549 | __func__, nr_attrs); | |
4550 | return -EINVAL; | |
4551 | } | |
c0eae66e BH |
4552 | if (nr_attrs == 1) { |
4553 | p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ | |
4554 | if (unlikely(!p)) | |
4555 | goto out_overflow; | |
4556 | } | |
fc931582 | 4557 | return 0; |
c0eae66e BH |
4558 | out_overflow: |
4559 | print_overflow_msg(__func__, xdr); | |
4560 | return -EIO; | |
fc931582 AA |
4561 | } |
4562 | ||
e78291e4 BH |
4563 | static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) |
4564 | { | |
4565 | return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); | |
fc931582 AA |
4566 | } |
4567 | ||
4568 | static int decode_create_session(struct xdr_stream *xdr, | |
4569 | struct nfs41_create_session_res *res) | |
4570 | { | |
4571 | __be32 *p; | |
4572 | int status; | |
4573 | struct nfs_client *clp = res->client; | |
4574 | struct nfs4_session *session = clp->cl_session; | |
4575 | ||
4576 | status = decode_op_hdr(xdr, OP_CREATE_SESSION); | |
e78291e4 BH |
4577 | if (!status) |
4578 | status = decode_sessionid(xdr, &session->sess_id); | |
4579 | if (unlikely(status)) | |
fc931582 AA |
4580 | return status; |
4581 | ||
fc931582 | 4582 | /* seqid, flags */ |
c0eae66e BH |
4583 | p = xdr_inline_decode(xdr, 8); |
4584 | if (unlikely(!p)) | |
4585 | goto out_overflow; | |
6f723f77 | 4586 | clp->cl_seqid = be32_to_cpup(p++); |
cccddf4f | 4587 | session->flags = be32_to_cpup(p); |
fc931582 AA |
4588 | |
4589 | /* Channel attributes */ | |
4590 | status = decode_chan_attrs(xdr, &session->fc_attrs); | |
4591 | if (!status) | |
4592 | status = decode_chan_attrs(xdr, &session->bc_attrs); | |
4593 | return status; | |
c0eae66e BH |
4594 | out_overflow: |
4595 | print_overflow_msg(__func__, xdr); | |
4596 | return -EIO; | |
fc931582 | 4597 | } |
0f3e66c6 AA |
4598 | |
4599 | static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) | |
4600 | { | |
4601 | return decode_op_hdr(xdr, OP_DESTROY_SESSION); | |
4602 | } | |
18019753 RL |
4603 | |
4604 | static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) | |
4605 | { | |
4606 | return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); | |
4607 | } | |
99fe60d0 BH |
4608 | #endif /* CONFIG_NFS_V4_1 */ |
4609 | ||
9b7b9fcc AA |
4610 | static int decode_sequence(struct xdr_stream *xdr, |
4611 | struct nfs4_sequence_res *res, | |
4612 | struct rpc_rqst *rqstp) | |
4613 | { | |
4614 | #if defined(CONFIG_NFS_V4_1) | |
fc01cea9 AA |
4615 | struct nfs4_slot *slot; |
4616 | struct nfs4_sessionid id; | |
4617 | u32 dummy; | |
4618 | int status; | |
4619 | __be32 *p; | |
4620 | ||
9b7b9fcc AA |
4621 | if (!res->sr_session) |
4622 | return 0; | |
4623 | ||
fc01cea9 | 4624 | status = decode_op_hdr(xdr, OP_SEQUENCE); |
e78291e4 BH |
4625 | if (!status) |
4626 | status = decode_sessionid(xdr, &id); | |
4627 | if (unlikely(status)) | |
fc01cea9 | 4628 | goto out_err; |
9b7b9fcc | 4629 | |
fc01cea9 AA |
4630 | /* |
4631 | * If the server returns different values for sessionID, slotID or | |
4632 | * sequence number, the server is looney tunes. | |
4633 | */ | |
4634 | status = -ESERVERFAULT; | |
4635 | ||
fc01cea9 AA |
4636 | if (memcmp(id.data, res->sr_session->sess_id.data, |
4637 | NFS4_MAX_SESSIONID_LEN)) { | |
4638 | dprintk("%s Invalid session id\n", __func__); | |
4639 | goto out_err; | |
4640 | } | |
e78291e4 | 4641 | |
c0eae66e BH |
4642 | p = xdr_inline_decode(xdr, 20); |
4643 | if (unlikely(!p)) | |
4644 | goto out_overflow; | |
e78291e4 | 4645 | |
fc01cea9 | 4646 | /* seqid */ |
e78291e4 | 4647 | slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; |
6f723f77 | 4648 | dummy = be32_to_cpup(p++); |
fc01cea9 AA |
4649 | if (dummy != slot->seq_nr) { |
4650 | dprintk("%s Invalid sequence number\n", __func__); | |
4651 | goto out_err; | |
4652 | } | |
4653 | /* slot id */ | |
6f723f77 | 4654 | dummy = be32_to_cpup(p++); |
fc01cea9 AA |
4655 | if (dummy != res->sr_slotid) { |
4656 | dprintk("%s Invalid slot id\n", __func__); | |
4657 | goto out_err; | |
4658 | } | |
4659 | /* highest slot id - currently not processed */ | |
6f723f77 | 4660 | dummy = be32_to_cpup(p++); |
fc01cea9 | 4661 | /* target highest slot id - currently not processed */ |
6f723f77 | 4662 | dummy = be32_to_cpup(p++); |
0629e370 AB |
4663 | /* result flags */ |
4664 | res->sr_status_flags = be32_to_cpup(p); | |
fc01cea9 AA |
4665 | status = 0; |
4666 | out_err: | |
4667 | res->sr_status = status; | |
4668 | return status; | |
c0eae66e BH |
4669 | out_overflow: |
4670 | print_overflow_msg(__func__, xdr); | |
4671 | status = -EIO; | |
4672 | goto out_err; | |
fc01cea9 | 4673 | #else /* CONFIG_NFS_V4_1 */ |
9b7b9fcc | 4674 | return 0; |
fc01cea9 | 4675 | #endif /* CONFIG_NFS_V4_1 */ |
9b7b9fcc AA |
4676 | } |
4677 | ||
49c2559e BH |
4678 | /* |
4679 | * END OF "GENERIC" DECODE ROUTINES. | |
4680 | */ | |
4681 | ||
1da177e4 LT |
4682 | /* |
4683 | * Decode OPEN_DOWNGRADE response | |
4684 | */ | |
8687b63a | 4685 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4686 | { |
05d564fe AA |
4687 | struct xdr_stream xdr; |
4688 | struct compound_hdr hdr; | |
4689 | int status; | |
4690 | ||
4691 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4692 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4693 | if (status) |
4694 | goto out; | |
4695 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4696 | if (status) |
4697 | goto out; | |
4698 | status = decode_putfh(&xdr); | |
4699 | if (status) | |
4700 | goto out; | |
4701 | status = decode_open_downgrade(&xdr, res); | |
516a6af6 TM |
4702 | if (status != 0) |
4703 | goto out; | |
80e52ace TM |
4704 | decode_getfattr(&xdr, res->fattr, res->server, |
4705 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 | 4706 | out: |
05d564fe | 4707 | return status; |
1da177e4 LT |
4708 | } |
4709 | ||
1da177e4 LT |
4710 | /* |
4711 | * Decode ACCESS response | |
4712 | */ | |
8687b63a | 4713 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) |
1da177e4 LT |
4714 | { |
4715 | struct xdr_stream xdr; | |
4716 | struct compound_hdr hdr; | |
4717 | int status; | |
6c0195a4 | 4718 | |
1da177e4 | 4719 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4720 | status = decode_compound_hdr(&xdr, &hdr); |
4721 | if (status) | |
4722 | goto out; | |
4723 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4724 | if (status) | |
1da177e4 | 4725 | goto out; |
76b32999 TM |
4726 | status = decode_putfh(&xdr); |
4727 | if (status != 0) | |
4728 | goto out; | |
4729 | status = decode_access(&xdr, res); | |
4730 | if (status != 0) | |
4731 | goto out; | |
80e52ace TM |
4732 | decode_getfattr(&xdr, res->fattr, res->server, |
4733 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4734 | out: |
4735 | return status; | |
4736 | } | |
4737 | ||
4738 | /* | |
4739 | * Decode LOOKUP response | |
4740 | */ | |
8687b63a | 4741 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
4742 | { |
4743 | struct xdr_stream xdr; | |
4744 | struct compound_hdr hdr; | |
4745 | int status; | |
6c0195a4 | 4746 | |
1da177e4 | 4747 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4748 | status = decode_compound_hdr(&xdr, &hdr); |
4749 | if (status) | |
4750 | goto out; | |
4751 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4752 | if (status) | |
1da177e4 LT |
4753 | goto out; |
4754 | if ((status = decode_putfh(&xdr)) != 0) | |
4755 | goto out; | |
4756 | if ((status = decode_lookup(&xdr)) != 0) | |
4757 | goto out; | |
4758 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
4759 | goto out; | |
80e52ace TM |
4760 | status = decode_getfattr(&xdr, res->fattr, res->server |
4761 | ,!RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4762 | out: |
4763 | return status; | |
4764 | } | |
4765 | ||
4766 | /* | |
4767 | * Decode LOOKUP_ROOT response | |
4768 | */ | |
8687b63a | 4769 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
4770 | { |
4771 | struct xdr_stream xdr; | |
4772 | struct compound_hdr hdr; | |
4773 | int status; | |
6c0195a4 | 4774 | |
1da177e4 | 4775 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4776 | status = decode_compound_hdr(&xdr, &hdr); |
4777 | if (status) | |
4778 | goto out; | |
4779 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4780 | if (status) | |
1da177e4 LT |
4781 | goto out; |
4782 | if ((status = decode_putrootfh(&xdr)) != 0) | |
4783 | goto out; | |
4784 | if ((status = decode_getfh(&xdr, res->fh)) == 0) | |
80e52ace TM |
4785 | status = decode_getfattr(&xdr, res->fattr, res->server, |
4786 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4787 | out: |
4788 | return status; | |
4789 | } | |
4790 | ||
4791 | /* | |
4792 | * Decode REMOVE response | |
4793 | */ | |
4fdc17b2 | 4794 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) |
1da177e4 LT |
4795 | { |
4796 | struct xdr_stream xdr; | |
4797 | struct compound_hdr hdr; | |
4798 | int status; | |
6c0195a4 | 4799 | |
1da177e4 | 4800 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4801 | status = decode_compound_hdr(&xdr, &hdr); |
4802 | if (status) | |
4803 | goto out; | |
4804 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4805 | if (status) | |
1da177e4 | 4806 | goto out; |
16e42959 TM |
4807 | if ((status = decode_putfh(&xdr)) != 0) |
4808 | goto out; | |
4809 | if ((status = decode_remove(&xdr, &res->cinfo)) != 0) | |
4810 | goto out; | |
80e52ace TM |
4811 | decode_getfattr(&xdr, &res->dir_attr, res->server, |
4812 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4813 | out: |
4814 | return status; | |
4815 | } | |
4816 | ||
4817 | /* | |
4818 | * Decode RENAME response | |
4819 | */ | |
8687b63a | 4820 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) |
1da177e4 LT |
4821 | { |
4822 | struct xdr_stream xdr; | |
4823 | struct compound_hdr hdr; | |
4824 | int status; | |
6c0195a4 | 4825 | |
1da177e4 | 4826 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4827 | status = decode_compound_hdr(&xdr, &hdr); |
4828 | if (status) | |
4829 | goto out; | |
4830 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4831 | if (status) | |
1da177e4 LT |
4832 | goto out; |
4833 | if ((status = decode_putfh(&xdr)) != 0) | |
4834 | goto out; | |
4835 | if ((status = decode_savefh(&xdr)) != 0) | |
4836 | goto out; | |
4837 | if ((status = decode_putfh(&xdr)) != 0) | |
4838 | goto out; | |
6caf2c82 TM |
4839 | if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) |
4840 | goto out; | |
4841 | /* Current FH is target directory */ | |
80e52ace TM |
4842 | if (decode_getfattr(&xdr, res->new_fattr, res->server, |
4843 | !RPC_IS_ASYNC(rqstp->rq_task)) != 0) | |
6caf2c82 TM |
4844 | goto out; |
4845 | if ((status = decode_restorefh(&xdr)) != 0) | |
4846 | goto out; | |
80e52ace TM |
4847 | decode_getfattr(&xdr, res->old_fattr, res->server, |
4848 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4849 | out: |
4850 | return status; | |
4851 | } | |
4852 | ||
4853 | /* | |
4854 | * Decode LINK response | |
4855 | */ | |
8687b63a | 4856 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) |
1da177e4 LT |
4857 | { |
4858 | struct xdr_stream xdr; | |
4859 | struct compound_hdr hdr; | |
4860 | int status; | |
6c0195a4 | 4861 | |
1da177e4 | 4862 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4863 | status = decode_compound_hdr(&xdr, &hdr); |
4864 | if (status) | |
4865 | goto out; | |
4866 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4867 | if (status) | |
1da177e4 LT |
4868 | goto out; |
4869 | if ((status = decode_putfh(&xdr)) != 0) | |
4870 | goto out; | |
4871 | if ((status = decode_savefh(&xdr)) != 0) | |
4872 | goto out; | |
4873 | if ((status = decode_putfh(&xdr)) != 0) | |
4874 | goto out; | |
91ba2eee TM |
4875 | if ((status = decode_link(&xdr, &res->cinfo)) != 0) |
4876 | goto out; | |
4877 | /* | |
4878 | * Note order: OP_LINK leaves the directory as the current | |
4879 | * filehandle. | |
4880 | */ | |
80e52ace TM |
4881 | if (decode_getfattr(&xdr, res->dir_attr, res->server, |
4882 | !RPC_IS_ASYNC(rqstp->rq_task)) != 0) | |
91ba2eee TM |
4883 | goto out; |
4884 | if ((status = decode_restorefh(&xdr)) != 0) | |
4885 | goto out; | |
80e52ace TM |
4886 | decode_getfattr(&xdr, res->fattr, res->server, |
4887 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4888 | out: |
4889 | return status; | |
4890 | } | |
4891 | ||
4892 | /* | |
4893 | * Decode CREATE response | |
4894 | */ | |
8687b63a | 4895 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4896 | { |
4897 | struct xdr_stream xdr; | |
4898 | struct compound_hdr hdr; | |
4899 | int status; | |
6c0195a4 | 4900 | |
1da177e4 | 4901 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4902 | status = decode_compound_hdr(&xdr, &hdr); |
4903 | if (status) | |
4904 | goto out; | |
4905 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4906 | if (status) | |
1da177e4 LT |
4907 | goto out; |
4908 | if ((status = decode_putfh(&xdr)) != 0) | |
4909 | goto out; | |
56ae19f3 TM |
4910 | if ((status = decode_savefh(&xdr)) != 0) |
4911 | goto out; | |
1da177e4 LT |
4912 | if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) |
4913 | goto out; | |
4914 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
4915 | goto out; | |
80e52ace TM |
4916 | if (decode_getfattr(&xdr, res->fattr, res->server, |
4917 | !RPC_IS_ASYNC(rqstp->rq_task)) != 0) | |
56ae19f3 TM |
4918 | goto out; |
4919 | if ((status = decode_restorefh(&xdr)) != 0) | |
4920 | goto out; | |
80e52ace TM |
4921 | decode_getfattr(&xdr, res->dir_fattr, res->server, |
4922 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4923 | out: |
4924 | return status; | |
4925 | } | |
4926 | ||
4927 | /* | |
4928 | * Decode SYMLINK response | |
4929 | */ | |
8687b63a | 4930 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4931 | { |
4932 | return nfs4_xdr_dec_create(rqstp, p, res); | |
4933 | } | |
4934 | ||
4935 | /* | |
4936 | * Decode GETATTR response | |
4937 | */ | |
8687b63a | 4938 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) |
1da177e4 LT |
4939 | { |
4940 | struct xdr_stream xdr; | |
4941 | struct compound_hdr hdr; | |
4942 | int status; | |
6c0195a4 | 4943 | |
1da177e4 LT |
4944 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
4945 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4946 | if (status) |
4947 | goto out; | |
4948 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4949 | if (status) |
4950 | goto out; | |
4951 | status = decode_putfh(&xdr); | |
4952 | if (status) | |
4953 | goto out; | |
80e52ace TM |
4954 | status = decode_getfattr(&xdr, res->fattr, res->server, |
4955 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4956 | out: |
4957 | return status; | |
1da177e4 LT |
4958 | } |
4959 | ||
23ec6965 BF |
4960 | /* |
4961 | * Encode an SETACL request | |
4962 | */ | |
4963 | static int | |
8687b63a | 4964 | nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) |
23ec6965 | 4965 | { |
05d564fe AA |
4966 | struct xdr_stream xdr; |
4967 | struct compound_hdr hdr = { | |
66cc0429 | 4968 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe AA |
4969 | }; |
4970 | int status; | |
4971 | ||
4972 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 4973 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 4974 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 | 4975 | encode_putfh(&xdr, args->fh, &hdr); |
d017931c | 4976 | status = encode_setacl(&xdr, args, &hdr); |
d017931c | 4977 | encode_nops(&hdr); |
05d564fe | 4978 | return status; |
23ec6965 | 4979 | } |
05d564fe | 4980 | |
23ec6965 BF |
4981 | /* |
4982 | * Decode SETACL response | |
4983 | */ | |
4984 | static int | |
73c403a9 BH |
4985 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, |
4986 | struct nfs_setaclres *res) | |
23ec6965 BF |
4987 | { |
4988 | struct xdr_stream xdr; | |
4989 | struct compound_hdr hdr; | |
4990 | int status; | |
4991 | ||
4992 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4993 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4994 | if (status) |
4995 | goto out; | |
4996 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
23ec6965 BF |
4997 | if (status) |
4998 | goto out; | |
4999 | status = decode_putfh(&xdr); | |
5000 | if (status) | |
5001 | goto out; | |
9e9ecc03 | 5002 | status = decode_setattr(&xdr); |
23ec6965 BF |
5003 | out: |
5004 | return status; | |
5005 | } | |
1da177e4 | 5006 | |
029d105e BF |
5007 | /* |
5008 | * Decode GETACL response | |
5009 | */ | |
5010 | static int | |
663c79b3 BH |
5011 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, |
5012 | struct nfs_getaclres *res) | |
029d105e BF |
5013 | { |
5014 | struct xdr_stream xdr; | |
5015 | struct compound_hdr hdr; | |
5016 | int status; | |
5017 | ||
5018 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5019 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5020 | if (status) |
5021 | goto out; | |
5022 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
029d105e BF |
5023 | if (status) |
5024 | goto out; | |
5025 | status = decode_putfh(&xdr); | |
5026 | if (status) | |
5027 | goto out; | |
663c79b3 | 5028 | status = decode_getacl(&xdr, rqstp, &res->acl_len); |
029d105e BF |
5029 | |
5030 | out: | |
5031 | return status; | |
5032 | } | |
5033 | ||
1da177e4 LT |
5034 | /* |
5035 | * Decode CLOSE response | |
5036 | */ | |
8687b63a | 5037 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 5038 | { |
05d564fe AA |
5039 | struct xdr_stream xdr; |
5040 | struct compound_hdr hdr; | |
5041 | int status; | |
5042 | ||
5043 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5044 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5045 | if (status) |
5046 | goto out; | |
5047 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
5048 | if (status) |
5049 | goto out; | |
5050 | status = decode_putfh(&xdr); | |
5051 | if (status) | |
5052 | goto out; | |
5053 | status = decode_close(&xdr, res); | |
516a6af6 TM |
5054 | if (status != 0) |
5055 | goto out; | |
5056 | /* | |
5057 | * Note: Server may do delete on close for this file | |
5058 | * in which case the getattr call will fail with | |
5059 | * an ESTALE error. Shouldn't be a problem, | |
5060 | * though, since fattr->valid will remain unset. | |
5061 | */ | |
80e52ace TM |
5062 | decode_getfattr(&xdr, res->fattr, res->server, |
5063 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 | 5064 | out: |
05d564fe | 5065 | return status; |
1da177e4 LT |
5066 | } |
5067 | ||
5068 | /* | |
5069 | * Decode OPEN response | |
5070 | */ | |
8687b63a | 5071 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 5072 | { |
05d564fe AA |
5073 | struct xdr_stream xdr; |
5074 | struct compound_hdr hdr; | |
5075 | int status; | |
5076 | ||
5077 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5078 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5079 | if (status) |
5080 | goto out; | |
5081 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
5082 | if (status) |
5083 | goto out; | |
5084 | status = decode_putfh(&xdr); | |
5085 | if (status) | |
5086 | goto out; | |
5087 | status = decode_savefh(&xdr); | |
5088 | if (status) | |
5089 | goto out; | |
5090 | status = decode_open(&xdr, res); | |
56ae19f3 TM |
5091 | if (status) |
5092 | goto out; | |
9936781d | 5093 | if (decode_getfh(&xdr, &res->fh) != 0) |
1da177e4 | 5094 | goto out; |
80e52ace TM |
5095 | if (decode_getfattr(&xdr, res->f_attr, res->server, |
5096 | !RPC_IS_ASYNC(rqstp->rq_task)) != 0) | |
56ae19f3 | 5097 | goto out; |
365c8f58 | 5098 | if (decode_restorefh(&xdr) != 0) |
56ae19f3 | 5099 | goto out; |
80e52ace TM |
5100 | decode_getfattr(&xdr, res->dir_attr, res->server, |
5101 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 | 5102 | out: |
05d564fe | 5103 | return status; |
1da177e4 LT |
5104 | } |
5105 | ||
5106 | /* | |
5107 | * Decode OPEN_CONFIRM response | |
5108 | */ | |
8687b63a | 5109 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) |
1da177e4 | 5110 | { |
05d564fe AA |
5111 | struct xdr_stream xdr; |
5112 | struct compound_hdr hdr; | |
5113 | int status; | |
5114 | ||
5115 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5116 | status = decode_compound_hdr(&xdr, &hdr); | |
5117 | if (status) | |
5118 | goto out; | |
5119 | status = decode_putfh(&xdr); | |
5120 | if (status) | |
5121 | goto out; | |
5122 | status = decode_open_confirm(&xdr, res); | |
1da177e4 | 5123 | out: |
05d564fe | 5124 | return status; |
1da177e4 LT |
5125 | } |
5126 | ||
5127 | /* | |
5128 | * Decode OPEN response | |
5129 | */ | |
8687b63a | 5130 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 5131 | { |
05d564fe AA |
5132 | struct xdr_stream xdr; |
5133 | struct compound_hdr hdr; | |
5134 | int status; | |
5135 | ||
5136 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5137 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5138 | if (status) |
5139 | goto out; | |
5140 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
5141 | if (status) |
5142 | goto out; | |
5143 | status = decode_putfh(&xdr); | |
5144 | if (status) | |
5145 | goto out; | |
5146 | status = decode_open(&xdr, res); | |
5147 | if (status) | |
5148 | goto out; | |
80e52ace TM |
5149 | decode_getfattr(&xdr, res->f_attr, res->server, |
5150 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 | 5151 | out: |
05d564fe | 5152 | return status; |
1da177e4 LT |
5153 | } |
5154 | ||
5155 | /* | |
5156 | * Decode SETATTR response | |
5157 | */ | |
8687b63a | 5158 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) |
1da177e4 | 5159 | { |
05d564fe AA |
5160 | struct xdr_stream xdr; |
5161 | struct compound_hdr hdr; | |
5162 | int status; | |
5163 | ||
5164 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5165 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5166 | if (status) |
5167 | goto out; | |
5168 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
5169 | if (status) |
5170 | goto out; | |
5171 | status = decode_putfh(&xdr); | |
5172 | if (status) | |
5173 | goto out; | |
9e9ecc03 | 5174 | status = decode_setattr(&xdr); |
05d564fe AA |
5175 | if (status) |
5176 | goto out; | |
80e52ace TM |
5177 | decode_getfattr(&xdr, res->fattr, res->server, |
5178 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 | 5179 | out: |
05d564fe | 5180 | return status; |
1da177e4 LT |
5181 | } |
5182 | ||
5183 | /* | |
5184 | * Decode LOCK response | |
5185 | */ | |
8687b63a | 5186 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) |
1da177e4 LT |
5187 | { |
5188 | struct xdr_stream xdr; | |
5189 | struct compound_hdr hdr; | |
5190 | int status; | |
5191 | ||
5192 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5193 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5194 | if (status) |
5195 | goto out; | |
5196 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5197 | if (status) |
5198 | goto out; | |
5199 | status = decode_putfh(&xdr); | |
5200 | if (status) | |
5201 | goto out; | |
5202 | status = decode_lock(&xdr, res); | |
5203 | out: | |
5204 | return status; | |
5205 | } | |
5206 | ||
5207 | /* | |
5208 | * Decode LOCKT response | |
5209 | */ | |
8687b63a | 5210 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) |
1da177e4 LT |
5211 | { |
5212 | struct xdr_stream xdr; | |
5213 | struct compound_hdr hdr; | |
5214 | int status; | |
5215 | ||
5216 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5217 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5218 | if (status) |
5219 | goto out; | |
5220 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5221 | if (status) |
5222 | goto out; | |
5223 | status = decode_putfh(&xdr); | |
5224 | if (status) | |
5225 | goto out; | |
5226 | status = decode_lockt(&xdr, res); | |
5227 | out: | |
5228 | return status; | |
5229 | } | |
5230 | ||
5231 | /* | |
5232 | * Decode LOCKU response | |
5233 | */ | |
8687b63a | 5234 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) |
1da177e4 LT |
5235 | { |
5236 | struct xdr_stream xdr; | |
5237 | struct compound_hdr hdr; | |
5238 | int status; | |
5239 | ||
5240 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5241 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5242 | if (status) |
5243 | goto out; | |
5244 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5245 | if (status) |
5246 | goto out; | |
5247 | status = decode_putfh(&xdr); | |
5248 | if (status) | |
5249 | goto out; | |
5250 | status = decode_locku(&xdr, res); | |
5251 | out: | |
5252 | return status; | |
5253 | } | |
5254 | ||
5255 | /* | |
5256 | * Decode READLINK response | |
5257 | */ | |
f50c7000 BH |
5258 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, |
5259 | struct nfs4_readlink_res *res) | |
1da177e4 LT |
5260 | { |
5261 | struct xdr_stream xdr; | |
5262 | struct compound_hdr hdr; | |
5263 | int status; | |
5264 | ||
5265 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5266 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5267 | if (status) |
5268 | goto out; | |
5269 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5270 | if (status) |
5271 | goto out; | |
5272 | status = decode_putfh(&xdr); | |
5273 | if (status) | |
5274 | goto out; | |
5275 | status = decode_readlink(&xdr, rqstp); | |
5276 | out: | |
5277 | return status; | |
5278 | } | |
5279 | ||
5280 | /* | |
5281 | * Decode READDIR response | |
5282 | */ | |
8687b63a | 5283 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) |
1da177e4 LT |
5284 | { |
5285 | struct xdr_stream xdr; | |
5286 | struct compound_hdr hdr; | |
5287 | int status; | |
5288 | ||
5289 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5290 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5291 | if (status) |
5292 | goto out; | |
5293 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5294 | if (status) |
5295 | goto out; | |
5296 | status = decode_putfh(&xdr); | |
5297 | if (status) | |
5298 | goto out; | |
5299 | status = decode_readdir(&xdr, rqstp, res); | |
5300 | out: | |
5301 | return status; | |
5302 | } | |
5303 | ||
5304 | /* | |
5305 | * Decode Read response | |
5306 | */ | |
8687b63a | 5307 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) |
1da177e4 LT |
5308 | { |
5309 | struct xdr_stream xdr; | |
5310 | struct compound_hdr hdr; | |
5311 | int status; | |
5312 | ||
5313 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5314 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5315 | if (status) |
5316 | goto out; | |
5317 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5318 | if (status) |
5319 | goto out; | |
5320 | status = decode_putfh(&xdr); | |
5321 | if (status) | |
5322 | goto out; | |
5323 | status = decode_read(&xdr, rqstp, res); | |
5324 | if (!status) | |
5325 | status = res->count; | |
5326 | out: | |
5327 | return status; | |
5328 | } | |
5329 | ||
5330 | /* | |
5331 | * Decode WRITE response | |
5332 | */ | |
8687b63a | 5333 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
5334 | { |
5335 | struct xdr_stream xdr; | |
5336 | struct compound_hdr hdr; | |
5337 | int status; | |
5338 | ||
5339 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5340 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5341 | if (status) |
5342 | goto out; | |
5343 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5344 | if (status) |
5345 | goto out; | |
5346 | status = decode_putfh(&xdr); | |
5347 | if (status) | |
5348 | goto out; | |
5349 | status = decode_write(&xdr, res); | |
4f9838c7 TM |
5350 | if (status) |
5351 | goto out; | |
80e52ace TM |
5352 | decode_getfattr(&xdr, res->fattr, res->server, |
5353 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
5354 | if (!status) |
5355 | status = res->count; | |
5356 | out: | |
5357 | return status; | |
5358 | } | |
5359 | ||
5360 | /* | |
5361 | * Decode COMMIT response | |
5362 | */ | |
8687b63a | 5363 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
5364 | { |
5365 | struct xdr_stream xdr; | |
5366 | struct compound_hdr hdr; | |
5367 | int status; | |
5368 | ||
5369 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5370 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5371 | if (status) |
5372 | goto out; | |
5373 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5374 | if (status) |
5375 | goto out; | |
5376 | status = decode_putfh(&xdr); | |
5377 | if (status) | |
5378 | goto out; | |
5379 | status = decode_commit(&xdr, res); | |
4f9838c7 TM |
5380 | if (status) |
5381 | goto out; | |
80e52ace TM |
5382 | decode_getfattr(&xdr, res->fattr, res->server, |
5383 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
5384 | out: |
5385 | return status; | |
5386 | } | |
5387 | ||
5388 | /* | |
8b173218 | 5389 | * Decode FSINFO response |
1da177e4 | 5390 | */ |
3dda5e43 BH |
5391 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, |
5392 | struct nfs4_fsinfo_res *res) | |
1da177e4 LT |
5393 | { |
5394 | struct xdr_stream xdr; | |
5395 | struct compound_hdr hdr; | |
5396 | int status; | |
5397 | ||
5398 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5399 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5400 | if (!status) |
5401 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5402 | if (!status) |
5403 | status = decode_putfh(&xdr); | |
5404 | if (!status) | |
3dda5e43 | 5405 | status = decode_fsinfo(&xdr, res->fsinfo); |
1da177e4 LT |
5406 | return status; |
5407 | } | |
5408 | ||
5409 | /* | |
8b173218 | 5410 | * Decode PATHCONF response |
1da177e4 | 5411 | */ |
d45b2989 BH |
5412 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, |
5413 | struct nfs4_pathconf_res *res) | |
1da177e4 LT |
5414 | { |
5415 | struct xdr_stream xdr; | |
5416 | struct compound_hdr hdr; | |
5417 | int status; | |
5418 | ||
5419 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5420 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5421 | if (!status) |
5422 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5423 | if (!status) |
5424 | status = decode_putfh(&xdr); | |
5425 | if (!status) | |
d45b2989 | 5426 | status = decode_pathconf(&xdr, res->pathconf); |
1da177e4 LT |
5427 | return status; |
5428 | } | |
5429 | ||
5430 | /* | |
8b173218 | 5431 | * Decode STATFS response |
1da177e4 | 5432 | */ |
24ad148a BH |
5433 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, |
5434 | struct nfs4_statfs_res *res) | |
1da177e4 LT |
5435 | { |
5436 | struct xdr_stream xdr; | |
5437 | struct compound_hdr hdr; | |
5438 | int status; | |
5439 | ||
5440 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5441 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5442 | if (!status) |
5443 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5444 | if (!status) |
5445 | status = decode_putfh(&xdr); | |
5446 | if (!status) | |
24ad148a | 5447 | status = decode_statfs(&xdr, res->fsstat); |
1da177e4 LT |
5448 | return status; |
5449 | } | |
5450 | ||
5451 | /* | |
8b173218 | 5452 | * Decode GETATTR_BITMAP response |
1da177e4 | 5453 | */ |
8687b63a | 5454 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) |
1da177e4 LT |
5455 | { |
5456 | struct xdr_stream xdr; | |
5457 | struct compound_hdr hdr; | |
5458 | int status; | |
5459 | ||
5460 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
9b7b9fcc AA |
5461 | status = decode_compound_hdr(&xdr, &hdr); |
5462 | if (status) | |
5463 | goto out; | |
5464 | status = decode_sequence(&xdr, &res->seq_res, req); | |
5465 | if (status) | |
1da177e4 LT |
5466 | goto out; |
5467 | if ((status = decode_putfh(&xdr)) != 0) | |
5468 | goto out; | |
5469 | status = decode_server_caps(&xdr, res); | |
5470 | out: | |
5471 | return status; | |
5472 | } | |
5473 | ||
5474 | /* | |
5475 | * Decode RENEW response | |
5476 | */ | |
8687b63a | 5477 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) |
1da177e4 LT |
5478 | { |
5479 | struct xdr_stream xdr; | |
5480 | struct compound_hdr hdr; | |
5481 | int status; | |
5482 | ||
5483 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5484 | status = decode_compound_hdr(&xdr, &hdr); | |
5485 | if (!status) | |
5486 | status = decode_renew(&xdr); | |
5487 | return status; | |
5488 | } | |
5489 | ||
5490 | /* | |
8b173218 | 5491 | * Decode SETCLIENTID response |
1da177e4 | 5492 | */ |
8687b63a | 5493 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, |
adfa6f98 | 5494 | struct nfs_client *clp) |
1da177e4 LT |
5495 | { |
5496 | struct xdr_stream xdr; | |
5497 | struct compound_hdr hdr; | |
5498 | int status; | |
5499 | ||
5500 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5501 | status = decode_compound_hdr(&xdr, &hdr); | |
5502 | if (!status) | |
5503 | status = decode_setclientid(&xdr, clp); | |
1da177e4 LT |
5504 | return status; |
5505 | } | |
5506 | ||
5507 | /* | |
8b173218 | 5508 | * Decode SETCLIENTID_CONFIRM response |
1da177e4 | 5509 | */ |
8687b63a | 5510 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
5511 | { |
5512 | struct xdr_stream xdr; | |
5513 | struct compound_hdr hdr; | |
5514 | int status; | |
5515 | ||
5516 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5517 | status = decode_compound_hdr(&xdr, &hdr); | |
5518 | if (!status) | |
5519 | status = decode_setclientid_confirm(&xdr); | |
5520 | if (!status) | |
5521 | status = decode_putrootfh(&xdr); | |
5522 | if (!status) | |
5523 | status = decode_fsinfo(&xdr, fsinfo); | |
1da177e4 LT |
5524 | return status; |
5525 | } | |
5526 | ||
5527 | /* | |
8b173218 | 5528 | * Decode DELEGRETURN response |
1da177e4 | 5529 | */ |
8687b63a | 5530 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) |
1da177e4 LT |
5531 | { |
5532 | struct xdr_stream xdr; | |
5533 | struct compound_hdr hdr; | |
5534 | int status; | |
5535 | ||
5536 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5537 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5538 | if (status) |
5539 | goto out; | |
5540 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
5541 | if (status) | |
fa178f29 TM |
5542 | goto out; |
5543 | status = decode_putfh(&xdr); | |
5544 | if (status != 0) | |
5545 | goto out; | |
5546 | status = decode_delegreturn(&xdr); | |
80e52ace TM |
5547 | decode_getfattr(&xdr, res->fattr, res->server, |
5548 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
fa178f29 | 5549 | out: |
1da177e4 LT |
5550 | return status; |
5551 | } | |
5552 | ||
683b57b4 | 5553 | /* |
8b173218 | 5554 | * Decode FS_LOCATIONS response |
683b57b4 | 5555 | */ |
22958463 BH |
5556 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, |
5557 | struct nfs4_fs_locations_res *res) | |
683b57b4 TM |
5558 | { |
5559 | struct xdr_stream xdr; | |
5560 | struct compound_hdr hdr; | |
5561 | int status; | |
5562 | ||
5563 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5564 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5565 | if (status) |
5566 | goto out; | |
5567 | status = decode_sequence(&xdr, &res->seq_res, req); | |
5568 | if (status) | |
683b57b4 TM |
5569 | goto out; |
5570 | if ((status = decode_putfh(&xdr)) != 0) | |
5571 | goto out; | |
5572 | if ((status = decode_lookup(&xdr)) != 0) | |
5573 | goto out; | |
5574 | xdr_enter_page(&xdr, PAGE_SIZE); | |
22958463 | 5575 | status = decode_getfattr(&xdr, &res->fs_locations->fattr, |
80e52ace TM |
5576 | res->fs_locations->server, |
5577 | !RPC_IS_ASYNC(req->rq_task)); | |
683b57b4 TM |
5578 | out: |
5579 | return status; | |
5580 | } | |
5581 | ||
99fe60d0 BH |
5582 | #if defined(CONFIG_NFS_V4_1) |
5583 | /* | |
8b173218 | 5584 | * Decode EXCHANGE_ID response |
99fe60d0 BH |
5585 | */ |
5586 | static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, | |
5587 | void *res) | |
5588 | { | |
5589 | struct xdr_stream xdr; | |
5590 | struct compound_hdr hdr; | |
5591 | int status; | |
5592 | ||
5593 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5594 | status = decode_compound_hdr(&xdr, &hdr); | |
5595 | if (!status) | |
5596 | status = decode_exchange_id(&xdr, res); | |
5597 | return status; | |
5598 | } | |
2050f0cc | 5599 | |
fc931582 | 5600 | /* |
8b173218 | 5601 | * Decode CREATE_SESSION response |
fc931582 AA |
5602 | */ |
5603 | static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, | |
5604 | struct nfs41_create_session_res *res) | |
5605 | { | |
5606 | struct xdr_stream xdr; | |
5607 | struct compound_hdr hdr; | |
5608 | int status; | |
5609 | ||
5610 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5611 | status = decode_compound_hdr(&xdr, &hdr); | |
5612 | if (!status) | |
5613 | status = decode_create_session(&xdr, res); | |
5614 | return status; | |
5615 | } | |
5616 | ||
0f3e66c6 | 5617 | /* |
8b173218 | 5618 | * Decode DESTROY_SESSION response |
0f3e66c6 AA |
5619 | */ |
5620 | static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, | |
5621 | void *dummy) | |
5622 | { | |
5623 | struct xdr_stream xdr; | |
5624 | struct compound_hdr hdr; | |
5625 | int status; | |
5626 | ||
5627 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5628 | status = decode_compound_hdr(&xdr, &hdr); | |
5629 | if (!status) | |
5630 | status = decode_destroy_session(&xdr, dummy); | |
5631 | return status; | |
5632 | } | |
5633 | ||
fc01cea9 | 5634 | /* |
8b173218 | 5635 | * Decode SEQUENCE response |
fc01cea9 AA |
5636 | */ |
5637 | static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, | |
5638 | struct nfs4_sequence_res *res) | |
5639 | { | |
5640 | struct xdr_stream xdr; | |
5641 | struct compound_hdr hdr; | |
5642 | int status; | |
5643 | ||
5644 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5645 | status = decode_compound_hdr(&xdr, &hdr); | |
5646 | if (!status) | |
5647 | status = decode_sequence(&xdr, res, rqstp); | |
5648 | return status; | |
5649 | } | |
5650 | ||
2050f0cc | 5651 | /* |
8b173218 | 5652 | * Decode GET_LEASE_TIME response |
2050f0cc AA |
5653 | */ |
5654 | static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, | |
5655 | struct nfs4_get_lease_time_res *res) | |
5656 | { | |
5657 | struct xdr_stream xdr; | |
5658 | struct compound_hdr hdr; | |
5659 | int status; | |
5660 | ||
5661 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5662 | status = decode_compound_hdr(&xdr, &hdr); | |
5663 | if (!status) | |
5664 | status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); | |
5665 | if (!status) | |
5666 | status = decode_putrootfh(&xdr); | |
5667 | if (!status) | |
5668 | status = decode_fsinfo(&xdr, res->lr_fsinfo); | |
5669 | return status; | |
5670 | } | |
18019753 RL |
5671 | |
5672 | /* | |
5673 | * Decode RECLAIM_COMPLETE response | |
5674 | */ | |
5675 | static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, uint32_t *p, | |
5676 | struct nfs41_reclaim_complete_res *res) | |
5677 | { | |
5678 | struct xdr_stream xdr; | |
5679 | struct compound_hdr hdr; | |
5680 | int status; | |
5681 | ||
5682 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5683 | status = decode_compound_hdr(&xdr, &hdr); | |
5684 | if (!status) | |
5685 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
5686 | if (!status) | |
5687 | status = decode_reclaim_complete(&xdr, (void *)NULL); | |
5688 | return status; | |
5689 | } | |
99fe60d0 BH |
5690 | #endif /* CONFIG_NFS_V4_1 */ |
5691 | ||
0dbb4c67 | 5692 | __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) |
1da177e4 LT |
5693 | { |
5694 | uint32_t bitmap[2] = {0}; | |
5695 | uint32_t len; | |
5696 | ||
5697 | if (!*p++) { | |
5698 | if (!*p) | |
5699 | return ERR_PTR(-EAGAIN); | |
5700 | entry->eof = 1; | |
5701 | return ERR_PTR(-EBADCOOKIE); | |
5702 | } | |
5703 | ||
5704 | entry->prev_cookie = entry->cookie; | |
5705 | p = xdr_decode_hyper(p, &entry->cookie); | |
5706 | entry->len = ntohl(*p++); | |
5707 | entry->name = (const char *) p; | |
5708 | p += XDR_QUADLEN(entry->len); | |
5709 | ||
5710 | /* | |
5711 | * In case the server doesn't return an inode number, | |
5712 | * we fake one here. (We don't use inode number 0, | |
5713 | * since glibc seems to choke on it...) | |
5714 | */ | |
5715 | entry->ino = 1; | |
5716 | ||
5717 | len = ntohl(*p++); /* bitmap length */ | |
5718 | if (len-- > 0) { | |
5719 | bitmap[0] = ntohl(*p++); | |
5720 | if (len-- > 0) { | |
5721 | bitmap[1] = ntohl(*p++); | |
5722 | p += len; | |
5723 | } | |
5724 | } | |
5725 | len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ | |
5726 | if (len > 0) { | |
97d312d0 MN |
5727 | if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { |
5728 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; | |
5729 | /* Ignore the return value of rdattr_error for now */ | |
5730 | p++; | |
5731 | len--; | |
5732 | } | |
1da177e4 LT |
5733 | if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) |
5734 | xdr_decode_hyper(p, &entry->ino); | |
5735 | else if (bitmap[0] == FATTR4_WORD0_FILEID) | |
5736 | xdr_decode_hyper(p, &entry->ino); | |
5737 | p += len; | |
5738 | } | |
5739 | ||
5740 | entry->eof = !p[0] && p[1]; | |
5741 | return p; | |
5742 | } | |
5743 | ||
5744 | /* | |
5745 | * We need to translate between nfs status return values and | |
5746 | * the local errno values which may not be the same. | |
5747 | */ | |
5748 | static struct { | |
5749 | int stat; | |
5750 | int errno; | |
5751 | } nfs_errtbl[] = { | |
5752 | { NFS4_OK, 0 }, | |
856dff3d BH |
5753 | { NFS4ERR_PERM, -EPERM }, |
5754 | { NFS4ERR_NOENT, -ENOENT }, | |
5755 | { NFS4ERR_IO, -errno_NFSERR_IO}, | |
5756 | { NFS4ERR_NXIO, -ENXIO }, | |
5757 | { NFS4ERR_ACCESS, -EACCES }, | |
5758 | { NFS4ERR_EXIST, -EEXIST }, | |
5759 | { NFS4ERR_XDEV, -EXDEV }, | |
5760 | { NFS4ERR_NOTDIR, -ENOTDIR }, | |
5761 | { NFS4ERR_ISDIR, -EISDIR }, | |
5762 | { NFS4ERR_INVAL, -EINVAL }, | |
5763 | { NFS4ERR_FBIG, -EFBIG }, | |
5764 | { NFS4ERR_NOSPC, -ENOSPC }, | |
5765 | { NFS4ERR_ROFS, -EROFS }, | |
5766 | { NFS4ERR_MLINK, -EMLINK }, | |
5767 | { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, | |
5768 | { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, | |
5769 | { NFS4ERR_DQUOT, -EDQUOT }, | |
5770 | { NFS4ERR_STALE, -ESTALE }, | |
5771 | { NFS4ERR_BADHANDLE, -EBADHANDLE }, | |
5772 | { NFS4ERR_BADOWNER, -EINVAL }, | |
5773 | { NFS4ERR_BADNAME, -EINVAL }, | |
5774 | { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, | |
5775 | { NFS4ERR_NOTSUPP, -ENOTSUPP }, | |
5776 | { NFS4ERR_TOOSMALL, -ETOOSMALL }, | |
5777 | { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, | |
5778 | { NFS4ERR_BADTYPE, -EBADTYPE }, | |
5779 | { NFS4ERR_LOCKED, -EAGAIN }, | |
856dff3d BH |
5780 | { NFS4ERR_SYMLINK, -ELOOP }, |
5781 | { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, | |
5782 | { NFS4ERR_DEADLOCK, -EDEADLK }, | |
5783 | { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs | |
1da177e4 LT |
5784 | * to be handled by a |
5785 | * middle-layer. | |
5786 | */ | |
856dff3d | 5787 | { -1, -EIO } |
1da177e4 LT |
5788 | }; |
5789 | ||
5790 | /* | |
5791 | * Convert an NFS error code to a local one. | |
5792 | * This one is used jointly by NFSv2 and NFSv3. | |
5793 | */ | |
5794 | static int | |
0a8ea437 | 5795 | nfs4_stat_to_errno(int stat) |
1da177e4 LT |
5796 | { |
5797 | int i; | |
5798 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { | |
5799 | if (nfs_errtbl[i].stat == stat) | |
5800 | return nfs_errtbl[i].errno; | |
5801 | } | |
5802 | if (stat <= 10000 || stat > 10100) { | |
5803 | /* The server is looney tunes. */ | |
856dff3d | 5804 | return -ESERVERFAULT; |
1da177e4 LT |
5805 | } |
5806 | /* If we cannot translate the error, the recovery routines should | |
5807 | * handle it. | |
5808 | * Note: remaining NFSv4 error codes have values > 10000, so should | |
5809 | * not conflict with native Linux error codes. | |
5810 | */ | |
856dff3d | 5811 | return -stat; |
1da177e4 LT |
5812 | } |
5813 | ||
1da177e4 LT |
5814 | #define PROC(proc, argtype, restype) \ |
5815 | [NFSPROC4_CLNT_##proc] = { \ | |
5816 | .p_proc = NFSPROC4_COMPOUND, \ | |
5817 | .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ | |
5818 | .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ | |
2bea90d4 CL |
5819 | .p_arglen = NFS4_##argtype##_sz, \ |
5820 | .p_replen = NFS4_##restype##_sz, \ | |
cc0175c1 CL |
5821 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
5822 | .p_name = #proc, \ | |
05d564fe | 5823 | } |
1da177e4 LT |
5824 | |
5825 | struct rpc_procinfo nfs4_procedures[] = { | |
5826 | PROC(READ, enc_read, dec_read), | |
5827 | PROC(WRITE, enc_write, dec_write), | |
5828 | PROC(COMMIT, enc_commit, dec_commit), | |
5829 | PROC(OPEN, enc_open, dec_open), | |
5830 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), | |
5831 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), | |
5832 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), | |
5833 | PROC(CLOSE, enc_close, dec_close), | |
5834 | PROC(SETATTR, enc_setattr, dec_setattr), | |
5835 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), | |
5836 | PROC(RENEW, enc_renew, dec_renew), | |
5837 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), | |
5838 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), | |
5839 | PROC(LOCK, enc_lock, dec_lock), | |
5840 | PROC(LOCKT, enc_lockt, dec_lockt), | |
5841 | PROC(LOCKU, enc_locku, dec_locku), | |
5842 | PROC(ACCESS, enc_access, dec_access), | |
5843 | PROC(GETATTR, enc_getattr, dec_getattr), | |
5844 | PROC(LOOKUP, enc_lookup, dec_lookup), | |
5845 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), | |
5846 | PROC(REMOVE, enc_remove, dec_remove), | |
5847 | PROC(RENAME, enc_rename, dec_rename), | |
5848 | PROC(LINK, enc_link, dec_link), | |
5849 | PROC(SYMLINK, enc_symlink, dec_symlink), | |
5850 | PROC(CREATE, enc_create, dec_create), | |
5851 | PROC(PATHCONF, enc_pathconf, dec_pathconf), | |
5852 | PROC(STATFS, enc_statfs, dec_statfs), | |
5853 | PROC(READLINK, enc_readlink, dec_readlink), | |
5854 | PROC(READDIR, enc_readdir, dec_readdir), | |
5855 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), | |
5856 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), | |
029d105e | 5857 | PROC(GETACL, enc_getacl, dec_getacl), |
23ec6965 | 5858 | PROC(SETACL, enc_setacl, dec_setacl), |
683b57b4 | 5859 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), |
99fe60d0 BH |
5860 | #if defined(CONFIG_NFS_V4_1) |
5861 | PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), | |
fc931582 | 5862 | PROC(CREATE_SESSION, enc_create_session, dec_create_session), |
0f3e66c6 | 5863 | PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), |
fc01cea9 | 5864 | PROC(SEQUENCE, enc_sequence, dec_sequence), |
2050f0cc | 5865 | PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), |
18019753 | 5866 | PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), |
99fe60d0 | 5867 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 LT |
5868 | }; |
5869 | ||
5870 | struct rpc_version nfs_version4 = { | |
5871 | .number = 4, | |
e8c96f8c | 5872 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
1da177e4 LT |
5873 | .procs = nfs4_procedures |
5874 | }; | |
5875 | ||
5876 | /* | |
5877 | * Local variables: | |
5878 | * c-basic-offset: 8 | |
5879 | * End: | |
5880 | */ |