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1da177e4 LT |
1 | /* |
2 | * fs/nfs/nfs4xdr.c | |
3 | * | |
4 | * Client-side XDR for NFSv4. | |
5 | * | |
6 | * Copyright (c) 2002 The Regents of the University of Michigan. | |
7 | * All rights reserved. | |
8 | * | |
9 | * Kendrick Smith <kmsmith@umich.edu> | |
10 | * Andy Adamson <andros@umich.edu> | |
6c0195a4 | 11 | * |
1da177e4 LT |
12 | * Redistribution and use in source and binary forms, with or without |
13 | * modification, are permitted provided that the following conditions | |
14 | * are met: | |
15 | * | |
16 | * 1. Redistributions of source code must retain the above copyright | |
17 | * notice, this list of conditions and the following disclaimer. | |
18 | * 2. Redistributions in binary form must reproduce the above copyright | |
19 | * notice, this list of conditions and the following disclaimer in the | |
20 | * documentation and/or other materials provided with the distribution. | |
21 | * 3. Neither the name of the University nor the names of its | |
22 | * contributors may be used to endorse or promote products derived | |
23 | * from this software without specific prior written permission. | |
24 | * | |
25 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
26 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
27 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
28 | * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
29 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
32 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
33 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
34 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
35 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
36 | */ | |
37 | ||
38 | #include <linux/param.h> | |
39 | #include <linux/time.h> | |
40 | #include <linux/mm.h> | |
41 | #include <linux/slab.h> | |
42 | #include <linux/utsname.h> | |
43 | #include <linux/errno.h> | |
44 | #include <linux/string.h> | |
45 | #include <linux/in.h> | |
46 | #include <linux/pagemap.h> | |
47 | #include <linux/proc_fs.h> | |
48 | #include <linux/kdev_t.h> | |
49 | #include <linux/sunrpc/clnt.h> | |
50 | #include <linux/nfs.h> | |
51 | #include <linux/nfs4.h> | |
52 | #include <linux/nfs_fs.h> | |
53 | #include <linux/nfs_idmap.h> | |
4ce79717 | 54 | #include "nfs4_fs.h" |
1da177e4 LT |
55 | |
56 | #define NFSDBG_FACILITY NFSDBG_XDR | |
57 | ||
58 | /* Mapping from NFS error code to "errno" error code. */ | |
59 | #define errno_NFSERR_IO EIO | |
60 | ||
0a8ea437 | 61 | static int nfs4_stat_to_errno(int); |
1da177e4 LT |
62 | |
63 | /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ | |
64 | #ifdef DEBUG | |
65 | #define NFS4_MAXTAGLEN 20 | |
66 | #else | |
67 | #define NFS4_MAXTAGLEN 0 | |
68 | #endif | |
69 | ||
6c0195a4 | 70 | /* lock,open owner id: |
9f958ab8 | 71 | * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) |
1da177e4 | 72 | */ |
9f958ab8 TM |
73 | #define open_owner_id_maxsz (1 + 4) |
74 | #define lock_owner_id_maxsz (1 + 4) | |
9104a55d | 75 | #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
1da177e4 LT |
76 | #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) |
77 | #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) | |
78 | #define op_encode_hdr_maxsz (1) | |
79 | #define op_decode_hdr_maxsz (2) | |
9104a55d TM |
80 | #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) |
81 | #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
82 | #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
83 | #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1da177e4 LT |
84 | #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ |
85 | (NFS4_FHSIZE >> 2)) | |
86 | #define decode_putfh_maxsz (op_decode_hdr_maxsz) | |
87 | #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) | |
88 | #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) | |
89 | #define encode_getfh_maxsz (op_encode_hdr_maxsz) | |
90 | #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ | |
91 | ((3+NFS4_FHSIZE) >> 2)) | |
96928206 BF |
92 | #define nfs4_fattr_bitmap_maxsz 3 |
93 | #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) | |
1da177e4 LT |
94 | #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) |
95 | #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) | |
bd625ba8 TM |
96 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
97 | #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
96928206 BF |
98 | /* This is based on getfattr, which uses the most attributes: */ |
99 | #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ | |
bd625ba8 | 100 | 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) |
96928206 BF |
101 | #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ |
102 | nfs4_fattr_value_maxsz) | |
103 | #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) | |
9104a55d TM |
104 | #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ |
105 | 1 + 2 + 1 + \ | |
106 | nfs4_owner_maxsz + \ | |
107 | nfs4_group_maxsz + \ | |
108 | 4 + 4) | |
1da177e4 LT |
109 | #define encode_savefh_maxsz (op_encode_hdr_maxsz) |
110 | #define decode_savefh_maxsz (op_decode_hdr_maxsz) | |
56ae19f3 TM |
111 | #define encode_restorefh_maxsz (op_encode_hdr_maxsz) |
112 | #define decode_restorefh_maxsz (op_decode_hdr_maxsz) | |
2f42b5d0 | 113 | #define encode_fsinfo_maxsz (encode_getattr_maxsz) |
1da177e4 LT |
114 | #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) |
115 | #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) | |
116 | #define decode_renew_maxsz (op_decode_hdr_maxsz) | |
117 | #define encode_setclientid_maxsz \ | |
118 | (op_encode_hdr_maxsz + \ | |
cc38bac3 CL |
119 | XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ |
120 | XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ | |
121 | 1 /* sc_prog */ + \ | |
122 | XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ | |
123 | XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ | |
124 | 1) /* sc_cb_ident */ | |
1da177e4 LT |
125 | #define decode_setclientid_maxsz \ |
126 | (op_decode_hdr_maxsz + \ | |
127 | 2 + \ | |
128 | 1024) /* large value for CLID_INUSE */ | |
129 | #define encode_setclientid_confirm_maxsz \ | |
130 | (op_encode_hdr_maxsz + \ | |
131 | 3 + (NFS4_VERIFIER_SIZE >> 2)) | |
132 | #define decode_setclientid_confirm_maxsz \ | |
133 | (op_decode_hdr_maxsz) | |
e6889620 TM |
134 | #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) |
135 | #define decode_lookup_maxsz (op_decode_hdr_maxsz) | |
2cebf828 TM |
136 | #define encode_share_access_maxsz \ |
137 | (2) | |
9104a55d | 138 | #define encode_createmode_maxsz (1 + encode_attrs_maxsz) |
2cebf828 TM |
139 | #define encode_opentype_maxsz (1 + encode_createmode_maxsz) |
140 | #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) | |
141 | #define encode_open_maxsz (op_encode_hdr_maxsz + \ | |
142 | 2 + encode_share_access_maxsz + 2 + \ | |
143 | open_owner_id_maxsz + \ | |
144 | encode_opentype_maxsz + \ | |
145 | encode_claim_null_maxsz) | |
146 | #define decode_ace_maxsz (3 + nfs4_owner_maxsz) | |
9104a55d | 147 | #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ |
2cebf828 TM |
148 | decode_ace_maxsz) |
149 | #define decode_change_info_maxsz (5) | |
150 | #define decode_open_maxsz (op_decode_hdr_maxsz + \ | |
9104a55d | 151 | decode_stateid_maxsz + \ |
2cebf828 TM |
152 | decode_change_info_maxsz + 1 + \ |
153 | nfs4_fattr_bitmap_maxsz + \ | |
154 | decode_delegation_maxsz) | |
9104a55d TM |
155 | #define encode_open_confirm_maxsz \ |
156 | (op_encode_hdr_maxsz + \ | |
157 | encode_stateid_maxsz + 1) | |
158 | #define decode_open_confirm_maxsz \ | |
159 | (op_decode_hdr_maxsz + \ | |
160 | decode_stateid_maxsz) | |
161 | #define encode_open_downgrade_maxsz \ | |
162 | (op_encode_hdr_maxsz + \ | |
163 | encode_stateid_maxsz + 1 + \ | |
164 | encode_share_access_maxsz) | |
165 | #define decode_open_downgrade_maxsz \ | |
166 | (op_decode_hdr_maxsz + \ | |
167 | decode_stateid_maxsz) | |
168 | #define encode_close_maxsz (op_encode_hdr_maxsz + \ | |
169 | 1 + encode_stateid_maxsz) | |
170 | #define decode_close_maxsz (op_decode_hdr_maxsz + \ | |
171 | decode_stateid_maxsz) | |
172 | #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ | |
173 | encode_stateid_maxsz + \ | |
174 | encode_attrs_maxsz) | |
175 | #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ | |
176 | nfs4_fattr_bitmap_maxsz) | |
177 | #define encode_read_maxsz (op_encode_hdr_maxsz + \ | |
178 | encode_stateid_maxsz + 3) | |
179 | #define decode_read_maxsz (op_decode_hdr_maxsz + 2) | |
180 | #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ | |
181 | 2 + encode_verifier_maxsz + 5) | |
182 | #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ | |
183 | decode_verifier_maxsz) | |
184 | #define encode_readlink_maxsz (op_encode_hdr_maxsz) | |
185 | #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) | |
186 | #define encode_write_maxsz (op_encode_hdr_maxsz + \ | |
187 | encode_stateid_maxsz + 4) | |
188 | #define decode_write_maxsz (op_decode_hdr_maxsz + \ | |
189 | 2 + decode_verifier_maxsz) | |
190 | #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) | |
191 | #define decode_commit_maxsz (op_decode_hdr_maxsz + \ | |
192 | decode_verifier_maxsz) | |
1da177e4 LT |
193 | #define encode_remove_maxsz (op_encode_hdr_maxsz + \ |
194 | nfs4_name_maxsz) | |
6ce18391 BH |
195 | #define decode_remove_maxsz (op_decode_hdr_maxsz + \ |
196 | decode_change_info_maxsz) | |
1da177e4 LT |
197 | #define encode_rename_maxsz (op_encode_hdr_maxsz + \ |
198 | 2 * nfs4_name_maxsz) | |
6ce18391 BH |
199 | #define decode_rename_maxsz (op_decode_hdr_maxsz + \ |
200 | decode_change_info_maxsz + \ | |
201 | decode_change_info_maxsz) | |
1da177e4 LT |
202 | #define encode_link_maxsz (op_encode_hdr_maxsz + \ |
203 | nfs4_name_maxsz) | |
6ce18391 | 204 | #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) |
9104a55d TM |
205 | #define encode_lock_maxsz (op_encode_hdr_maxsz + \ |
206 | 7 + \ | |
207 | 1 + encode_stateid_maxsz + 8) | |
208 | #define decode_lock_denied_maxsz \ | |
209 | (8 + decode_lockowner_maxsz) | |
210 | #define decode_lock_maxsz (op_decode_hdr_maxsz + \ | |
211 | decode_lock_denied_maxsz) | |
212 | #define encode_lockt_maxsz (op_encode_hdr_maxsz + 12) | |
213 | #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ | |
214 | decode_lock_denied_maxsz) | |
215 | #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ | |
216 | encode_stateid_maxsz + \ | |
217 | 4) | |
218 | #define decode_locku_maxsz (op_decode_hdr_maxsz + \ | |
219 | decode_stateid_maxsz) | |
220 | #define encode_access_maxsz (op_encode_hdr_maxsz + 1) | |
221 | #define decode_access_maxsz (op_decode_hdr_maxsz + 2) | |
1da177e4 LT |
222 | #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ |
223 | 1 + nfs4_name_maxsz + \ | |
94a6d753 | 224 | 1 + \ |
96928206 | 225 | nfs4_fattr_maxsz) |
1da177e4 LT |
226 | #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) |
227 | #define encode_create_maxsz (op_encode_hdr_maxsz + \ | |
9104a55d TM |
228 | 1 + 2 + nfs4_name_maxsz + \ |
229 | encode_attrs_maxsz) | |
2cebf828 TM |
230 | #define decode_create_maxsz (op_decode_hdr_maxsz + \ |
231 | decode_change_info_maxsz + \ | |
232 | nfs4_fattr_bitmap_maxsz) | |
9104a55d TM |
233 | #define encode_statfs_maxsz (encode_getattr_maxsz) |
234 | #define decode_statfs_maxsz (decode_getattr_maxsz) | |
1da177e4 LT |
235 | #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) |
236 | #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) | |
9104a55d TM |
237 | #define encode_getacl_maxsz (encode_getattr_maxsz) |
238 | #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ | |
239 | nfs4_fattr_bitmap_maxsz + 1) | |
240 | #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ | |
241 | encode_stateid_maxsz + 3) | |
242 | #define decode_setacl_maxsz (decode_setattr_maxsz) | |
e6889620 TM |
243 | #define encode_fs_locations_maxsz \ |
244 | (encode_getattr_maxsz) | |
245 | #define decode_fs_locations_maxsz \ | |
246 | (0) | |
9b7b9fcc AA |
247 | |
248 | #if defined(CONFIG_NFS_V4_1) | |
fc931582 AA |
249 | #define NFS4_MAX_MACHINE_NAME_LEN (64) |
250 | ||
99fe60d0 BH |
251 | #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ |
252 | encode_verifier_maxsz + \ | |
253 | 1 /* co_ownerid.len */ + \ | |
254 | XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ | |
255 | 1 /* flags */ + \ | |
256 | 1 /* spa_how */ + \ | |
257 | 0 /* SP4_NONE (for now) */ + \ | |
258 | 1 /* zero implemetation id array */) | |
259 | #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ | |
260 | 2 /* eir_clientid */ + \ | |
261 | 1 /* eir_sequenceid */ + \ | |
262 | 1 /* eir_flags */ + \ | |
263 | 1 /* spr_how */ + \ | |
264 | 0 /* SP4_NONE (for now) */ + \ | |
265 | 2 /* eir_server_owner.so_minor_id */ + \ | |
266 | /* eir_server_owner.so_major_id<> */ \ | |
267 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ | |
268 | /* eir_server_scope<> */ \ | |
269 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ | |
270 | 1 /* eir_server_impl_id array length */ + \ | |
271 | 0 /* ignored eir_server_impl_id contents */) | |
fc931582 AA |
272 | #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) |
273 | #define decode_channel_attrs_maxsz (6 + \ | |
274 | 1 /* ca_rdma_ird.len */ + \ | |
275 | 1 /* ca_rdma_ird */) | |
276 | #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ | |
277 | 2 /* csa_clientid */ + \ | |
278 | 1 /* csa_sequence */ + \ | |
279 | 1 /* csa_flags */ + \ | |
280 | encode_channel_attrs_maxsz + \ | |
281 | encode_channel_attrs_maxsz + \ | |
282 | 1 /* csa_cb_program */ + \ | |
283 | 1 /* csa_sec_parms.len (1) */ + \ | |
284 | 1 /* cb_secflavor (AUTH_SYS) */ + \ | |
285 | 1 /* stamp */ + \ | |
286 | 1 /* machinename.len */ + \ | |
287 | XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ | |
288 | 1 /* uid */ + \ | |
289 | 1 /* gid */ + \ | |
290 | 1 /* gids.len (0) */) | |
291 | #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ | |
292 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ | |
293 | 1 /* csr_sequence */ + \ | |
294 | 1 /* csr_flags */ + \ | |
295 | decode_channel_attrs_maxsz + \ | |
296 | decode_channel_attrs_maxsz) | |
0f3e66c6 AA |
297 | #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) |
298 | #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) | |
fc01cea9 AA |
299 | #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ |
300 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) | |
301 | #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ | |
302 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) | |
9b7b9fcc AA |
303 | #else /* CONFIG_NFS_V4_1 */ |
304 | #define encode_sequence_maxsz 0 | |
305 | #define decode_sequence_maxsz 0 | |
306 | #endif /* CONFIG_NFS_V4_1 */ | |
307 | ||
1da177e4 LT |
308 | #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ |
309 | #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ | |
310 | #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 311 | encode_sequence_maxsz + \ |
1da177e4 | 312 | encode_putfh_maxsz + \ |
9104a55d | 313 | encode_read_maxsz) |
1da177e4 | 314 | #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 315 | decode_sequence_maxsz + \ |
1da177e4 | 316 | decode_putfh_maxsz + \ |
9104a55d | 317 | decode_read_maxsz) |
1da177e4 | 318 | #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 319 | encode_sequence_maxsz + \ |
1da177e4 | 320 | encode_putfh_maxsz + \ |
9104a55d | 321 | encode_readlink_maxsz) |
1da177e4 | 322 | #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 323 | decode_sequence_maxsz + \ |
1da177e4 | 324 | decode_putfh_maxsz + \ |
9104a55d | 325 | decode_readlink_maxsz) |
1da177e4 | 326 | #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 327 | encode_sequence_maxsz + \ |
1da177e4 | 328 | encode_putfh_maxsz + \ |
9104a55d | 329 | encode_readdir_maxsz) |
1da177e4 | 330 | #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 331 | decode_sequence_maxsz + \ |
1da177e4 | 332 | decode_putfh_maxsz + \ |
9104a55d | 333 | decode_readdir_maxsz) |
1da177e4 | 334 | #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 335 | encode_sequence_maxsz + \ |
1da177e4 | 336 | encode_putfh_maxsz + \ |
9104a55d | 337 | encode_write_maxsz + \ |
4f9838c7 | 338 | encode_getattr_maxsz) |
1da177e4 | 339 | #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 340 | decode_sequence_maxsz + \ |
1da177e4 | 341 | decode_putfh_maxsz + \ |
9104a55d | 342 | decode_write_maxsz + \ |
4f9838c7 | 343 | decode_getattr_maxsz) |
1da177e4 | 344 | #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 345 | encode_sequence_maxsz + \ |
1da177e4 | 346 | encode_putfh_maxsz + \ |
9104a55d | 347 | encode_commit_maxsz + \ |
4f9838c7 | 348 | encode_getattr_maxsz) |
1da177e4 | 349 | #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 350 | decode_sequence_maxsz + \ |
1da177e4 | 351 | decode_putfh_maxsz + \ |
9104a55d | 352 | decode_commit_maxsz + \ |
4f9838c7 | 353 | decode_getattr_maxsz) |
1da177e4 | 354 | #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 355 | encode_sequence_maxsz + \ |
2cebf828 TM |
356 | encode_putfh_maxsz + \ |
357 | encode_savefh_maxsz + \ | |
358 | encode_open_maxsz + \ | |
359 | encode_getfh_maxsz + \ | |
360 | encode_getattr_maxsz + \ | |
361 | encode_restorefh_maxsz + \ | |
362 | encode_getattr_maxsz) | |
1da177e4 | 363 | #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 364 | decode_sequence_maxsz + \ |
2cebf828 TM |
365 | decode_putfh_maxsz + \ |
366 | decode_savefh_maxsz + \ | |
367 | decode_open_maxsz + \ | |
368 | decode_getfh_maxsz + \ | |
369 | decode_getattr_maxsz + \ | |
370 | decode_restorefh_maxsz + \ | |
371 | decode_getattr_maxsz) | |
9104a55d TM |
372 | #define NFS4_enc_open_confirm_sz \ |
373 | (compound_encode_hdr_maxsz + \ | |
374 | encode_putfh_maxsz + \ | |
375 | encode_open_confirm_maxsz) | |
376 | #define NFS4_dec_open_confirm_sz \ | |
377 | (compound_decode_hdr_maxsz + \ | |
378 | decode_putfh_maxsz + \ | |
379 | decode_open_confirm_maxsz) | |
1da177e4 | 380 | #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 381 | encode_sequence_maxsz + \ |
1da177e4 | 382 | encode_putfh_maxsz + \ |
2cebf828 TM |
383 | encode_open_maxsz + \ |
384 | encode_getattr_maxsz) | |
1da177e4 | 385 | #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 386 | decode_sequence_maxsz + \ |
1da177e4 | 387 | decode_putfh_maxsz + \ |
2cebf828 TM |
388 | decode_open_maxsz + \ |
389 | decode_getattr_maxsz) | |
1da177e4 LT |
390 | #define NFS4_enc_open_downgrade_sz \ |
391 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 392 | encode_sequence_maxsz + \ |
9104a55d TM |
393 | encode_putfh_maxsz + \ |
394 | encode_open_downgrade_maxsz + \ | |
395 | encode_getattr_maxsz) | |
1da177e4 LT |
396 | #define NFS4_dec_open_downgrade_sz \ |
397 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 398 | decode_sequence_maxsz + \ |
9104a55d TM |
399 | decode_putfh_maxsz + \ |
400 | decode_open_downgrade_maxsz + \ | |
401 | decode_getattr_maxsz) | |
402 | #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 403 | encode_sequence_maxsz + \ |
9104a55d TM |
404 | encode_putfh_maxsz + \ |
405 | encode_close_maxsz + \ | |
406 | encode_getattr_maxsz) | |
407 | #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 408 | decode_sequence_maxsz + \ |
9104a55d TM |
409 | decode_putfh_maxsz + \ |
410 | decode_close_maxsz + \ | |
411 | decode_getattr_maxsz) | |
412 | #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 413 | encode_sequence_maxsz + \ |
9104a55d TM |
414 | encode_putfh_maxsz + \ |
415 | encode_setattr_maxsz + \ | |
416 | encode_getattr_maxsz) | |
417 | #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 418 | decode_sequence_maxsz + \ |
9104a55d TM |
419 | decode_putfh_maxsz + \ |
420 | decode_setattr_maxsz + \ | |
421 | decode_getattr_maxsz) | |
1da177e4 | 422 | #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 423 | encode_sequence_maxsz + \ |
1da177e4 LT |
424 | encode_putfh_maxsz + \ |
425 | encode_fsinfo_maxsz) | |
426 | #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 427 | decode_sequence_maxsz + \ |
1da177e4 LT |
428 | decode_putfh_maxsz + \ |
429 | decode_fsinfo_maxsz) | |
430 | #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ | |
431 | encode_renew_maxsz) | |
432 | #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ | |
433 | decode_renew_maxsz) | |
434 | #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ | |
435 | encode_setclientid_maxsz) | |
436 | #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ | |
437 | decode_setclientid_maxsz) | |
438 | #define NFS4_enc_setclientid_confirm_sz \ | |
439 | (compound_encode_hdr_maxsz + \ | |
440 | encode_setclientid_confirm_maxsz + \ | |
441 | encode_putrootfh_maxsz + \ | |
442 | encode_fsinfo_maxsz) | |
443 | #define NFS4_dec_setclientid_confirm_sz \ | |
444 | (compound_decode_hdr_maxsz + \ | |
445 | decode_setclientid_confirm_maxsz + \ | |
446 | decode_putrootfh_maxsz + \ | |
447 | decode_fsinfo_maxsz) | |
448 | #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 449 | encode_sequence_maxsz + \ |
1da177e4 | 450 | encode_putfh_maxsz + \ |
9104a55d | 451 | encode_lock_maxsz) |
1da177e4 | 452 | #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 453 | decode_sequence_maxsz + \ |
1da177e4 | 454 | decode_putfh_maxsz + \ |
9104a55d | 455 | decode_lock_maxsz) |
1da177e4 | 456 | #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 457 | encode_sequence_maxsz + \ |
1da177e4 | 458 | encode_putfh_maxsz + \ |
9104a55d TM |
459 | encode_lockt_maxsz) |
460 | #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 461 | decode_sequence_maxsz + \ |
9104a55d TM |
462 | decode_putfh_maxsz + \ |
463 | decode_lockt_maxsz) | |
1da177e4 | 464 | #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 465 | encode_sequence_maxsz + \ |
1da177e4 | 466 | encode_putfh_maxsz + \ |
9104a55d | 467 | encode_locku_maxsz) |
1da177e4 | 468 | #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 469 | decode_sequence_maxsz + \ |
1da177e4 | 470 | decode_putfh_maxsz + \ |
9104a55d | 471 | decode_locku_maxsz) |
1da177e4 | 472 | #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 473 | encode_sequence_maxsz + \ |
1da177e4 | 474 | encode_putfh_maxsz + \ |
76b32999 TM |
475 | encode_access_maxsz + \ |
476 | encode_getattr_maxsz) | |
1da177e4 | 477 | #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 478 | decode_sequence_maxsz + \ |
1da177e4 | 479 | decode_putfh_maxsz + \ |
76b32999 TM |
480 | decode_access_maxsz + \ |
481 | decode_getattr_maxsz) | |
1da177e4 | 482 | #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 483 | encode_sequence_maxsz + \ |
1da177e4 LT |
484 | encode_putfh_maxsz + \ |
485 | encode_getattr_maxsz) | |
486 | #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 487 | decode_sequence_maxsz + \ |
1da177e4 LT |
488 | decode_putfh_maxsz + \ |
489 | decode_getattr_maxsz) | |
490 | #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 491 | encode_sequence_maxsz + \ |
1da177e4 LT |
492 | encode_putfh_maxsz + \ |
493 | encode_lookup_maxsz + \ | |
494 | encode_getattr_maxsz + \ | |
495 | encode_getfh_maxsz) | |
496 | #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 497 | decode_sequence_maxsz + \ |
1da177e4 | 498 | decode_putfh_maxsz + \ |
e6889620 | 499 | decode_lookup_maxsz + \ |
1da177e4 LT |
500 | decode_getattr_maxsz + \ |
501 | decode_getfh_maxsz) | |
502 | #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 503 | encode_sequence_maxsz + \ |
1da177e4 LT |
504 | encode_putrootfh_maxsz + \ |
505 | encode_getattr_maxsz + \ | |
506 | encode_getfh_maxsz) | |
507 | #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 508 | decode_sequence_maxsz + \ |
1da177e4 LT |
509 | decode_putrootfh_maxsz + \ |
510 | decode_getattr_maxsz + \ | |
511 | decode_getfh_maxsz) | |
512 | #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 513 | encode_sequence_maxsz + \ |
1da177e4 | 514 | encode_putfh_maxsz + \ |
16e42959 TM |
515 | encode_remove_maxsz + \ |
516 | encode_getattr_maxsz) | |
1da177e4 | 517 | #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 518 | decode_sequence_maxsz + \ |
1da177e4 | 519 | decode_putfh_maxsz + \ |
6ce18391 | 520 | decode_remove_maxsz + \ |
16e42959 | 521 | decode_getattr_maxsz) |
1da177e4 | 522 | #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 523 | encode_sequence_maxsz + \ |
1da177e4 LT |
524 | encode_putfh_maxsz + \ |
525 | encode_savefh_maxsz + \ | |
526 | encode_putfh_maxsz + \ | |
6caf2c82 TM |
527 | encode_rename_maxsz + \ |
528 | encode_getattr_maxsz + \ | |
529 | encode_restorefh_maxsz + \ | |
530 | encode_getattr_maxsz) | |
1da177e4 | 531 | #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 532 | decode_sequence_maxsz + \ |
1da177e4 LT |
533 | decode_putfh_maxsz + \ |
534 | decode_savefh_maxsz + \ | |
535 | decode_putfh_maxsz + \ | |
6caf2c82 TM |
536 | decode_rename_maxsz + \ |
537 | decode_getattr_maxsz + \ | |
538 | decode_restorefh_maxsz + \ | |
539 | decode_getattr_maxsz) | |
1da177e4 | 540 | #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 541 | encode_sequence_maxsz + \ |
1da177e4 LT |
542 | encode_putfh_maxsz + \ |
543 | encode_savefh_maxsz + \ | |
544 | encode_putfh_maxsz + \ | |
91ba2eee TM |
545 | encode_link_maxsz + \ |
546 | decode_getattr_maxsz + \ | |
547 | encode_restorefh_maxsz + \ | |
548 | decode_getattr_maxsz) | |
1da177e4 | 549 | #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 550 | decode_sequence_maxsz + \ |
1da177e4 LT |
551 | decode_putfh_maxsz + \ |
552 | decode_savefh_maxsz + \ | |
553 | decode_putfh_maxsz + \ | |
91ba2eee TM |
554 | decode_link_maxsz + \ |
555 | decode_getattr_maxsz + \ | |
556 | decode_restorefh_maxsz + \ | |
557 | decode_getattr_maxsz) | |
1da177e4 | 558 | #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 559 | encode_sequence_maxsz + \ |
1da177e4 LT |
560 | encode_putfh_maxsz + \ |
561 | encode_symlink_maxsz + \ | |
562 | encode_getattr_maxsz + \ | |
563 | encode_getfh_maxsz) | |
564 | #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 565 | decode_sequence_maxsz + \ |
1da177e4 LT |
566 | decode_putfh_maxsz + \ |
567 | decode_symlink_maxsz + \ | |
568 | decode_getattr_maxsz + \ | |
569 | decode_getfh_maxsz) | |
570 | #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 571 | encode_sequence_maxsz + \ |
1da177e4 | 572 | encode_putfh_maxsz + \ |
56ae19f3 | 573 | encode_savefh_maxsz + \ |
1da177e4 | 574 | encode_create_maxsz + \ |
56ae19f3 | 575 | encode_getfh_maxsz + \ |
1da177e4 | 576 | encode_getattr_maxsz + \ |
56ae19f3 TM |
577 | encode_restorefh_maxsz + \ |
578 | encode_getattr_maxsz) | |
1da177e4 | 579 | #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 580 | decode_sequence_maxsz + \ |
1da177e4 | 581 | decode_putfh_maxsz + \ |
56ae19f3 | 582 | decode_savefh_maxsz + \ |
1da177e4 | 583 | decode_create_maxsz + \ |
56ae19f3 | 584 | decode_getfh_maxsz + \ |
1da177e4 | 585 | decode_getattr_maxsz + \ |
56ae19f3 TM |
586 | decode_restorefh_maxsz + \ |
587 | decode_getattr_maxsz) | |
1da177e4 | 588 | #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 589 | encode_sequence_maxsz + \ |
1da177e4 LT |
590 | encode_putfh_maxsz + \ |
591 | encode_getattr_maxsz) | |
592 | #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 593 | decode_sequence_maxsz + \ |
1da177e4 LT |
594 | decode_putfh_maxsz + \ |
595 | decode_getattr_maxsz) | |
596 | #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 597 | encode_sequence_maxsz + \ |
1da177e4 | 598 | encode_putfh_maxsz + \ |
9104a55d | 599 | encode_statfs_maxsz) |
1da177e4 | 600 | #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 601 | decode_sequence_maxsz + \ |
1da177e4 | 602 | decode_putfh_maxsz + \ |
9104a55d | 603 | decode_statfs_maxsz) |
1da177e4 | 604 | #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 605 | encode_sequence_maxsz + \ |
ab91f264 | 606 | encode_putfh_maxsz + \ |
1da177e4 LT |
607 | encode_getattr_maxsz) |
608 | #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 609 | decode_sequence_maxsz + \ |
ab91f264 | 610 | decode_putfh_maxsz + \ |
1da177e4 LT |
611 | decode_getattr_maxsz) |
612 | #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 613 | encode_sequence_maxsz + \ |
1da177e4 | 614 | encode_putfh_maxsz + \ |
fa178f29 TM |
615 | encode_delegreturn_maxsz + \ |
616 | encode_getattr_maxsz) | |
1da177e4 | 617 | #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 618 | decode_sequence_maxsz + \ |
fa178f29 TM |
619 | decode_delegreturn_maxsz + \ |
620 | decode_getattr_maxsz) | |
029d105e | 621 | #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 622 | encode_sequence_maxsz + \ |
029d105e | 623 | encode_putfh_maxsz + \ |
9104a55d | 624 | encode_getacl_maxsz) |
029d105e | 625 | #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 626 | decode_sequence_maxsz + \ |
029d105e | 627 | decode_putfh_maxsz + \ |
9104a55d | 628 | decode_getacl_maxsz) |
23ec6965 | 629 | #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 630 | encode_sequence_maxsz + \ |
23ec6965 | 631 | encode_putfh_maxsz + \ |
9104a55d | 632 | encode_setacl_maxsz) |
23ec6965 | 633 | #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 634 | decode_sequence_maxsz + \ |
23ec6965 | 635 | decode_putfh_maxsz + \ |
9104a55d | 636 | decode_setacl_maxsz) |
683b57b4 TM |
637 | #define NFS4_enc_fs_locations_sz \ |
638 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 639 | encode_sequence_maxsz + \ |
683b57b4 | 640 | encode_putfh_maxsz + \ |
e6889620 TM |
641 | encode_lookup_maxsz + \ |
642 | encode_fs_locations_maxsz) | |
683b57b4 TM |
643 | #define NFS4_dec_fs_locations_sz \ |
644 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 645 | decode_sequence_maxsz + \ |
683b57b4 | 646 | decode_putfh_maxsz + \ |
e6889620 TM |
647 | decode_lookup_maxsz + \ |
648 | decode_fs_locations_maxsz) | |
99fe60d0 BH |
649 | #if defined(CONFIG_NFS_V4_1) |
650 | #define NFS4_enc_exchange_id_sz \ | |
651 | (compound_encode_hdr_maxsz + \ | |
652 | encode_exchange_id_maxsz) | |
653 | #define NFS4_dec_exchange_id_sz \ | |
654 | (compound_decode_hdr_maxsz + \ | |
655 | decode_exchange_id_maxsz) | |
fc931582 AA |
656 | #define NFS4_enc_create_session_sz \ |
657 | (compound_encode_hdr_maxsz + \ | |
658 | encode_create_session_maxsz) | |
659 | #define NFS4_dec_create_session_sz \ | |
660 | (compound_decode_hdr_maxsz + \ | |
661 | decode_create_session_maxsz) | |
0f3e66c6 AA |
662 | #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ |
663 | encode_destroy_session_maxsz) | |
664 | #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ | |
665 | decode_destroy_session_maxsz) | |
fc01cea9 AA |
666 | #define NFS4_enc_sequence_sz \ |
667 | (compound_decode_hdr_maxsz + \ | |
668 | encode_sequence_maxsz) | |
669 | #define NFS4_dec_sequence_sz \ | |
670 | (compound_decode_hdr_maxsz + \ | |
671 | decode_sequence_maxsz) | |
2050f0cc AA |
672 | #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ |
673 | encode_sequence_maxsz + \ | |
674 | encode_putrootfh_maxsz + \ | |
675 | encode_fsinfo_maxsz) | |
676 | #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ | |
677 | decode_sequence_maxsz + \ | |
678 | decode_putrootfh_maxsz + \ | |
679 | decode_fsinfo_maxsz) | |
99fe60d0 | 680 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 | 681 | |
bca79478 TM |
682 | static const umode_t nfs_type2fmt[] = { |
683 | [NF4BAD] = 0, | |
684 | [NF4REG] = S_IFREG, | |
685 | [NF4DIR] = S_IFDIR, | |
686 | [NF4BLK] = S_IFBLK, | |
687 | [NF4CHR] = S_IFCHR, | |
688 | [NF4LNK] = S_IFLNK, | |
689 | [NF4SOCK] = S_IFSOCK, | |
690 | [NF4FIFO] = S_IFIFO, | |
691 | [NF4ATTRDIR] = 0, | |
692 | [NF4NAMEDATTR] = 0, | |
1da177e4 LT |
693 | }; |
694 | ||
695 | struct compound_hdr { | |
696 | int32_t status; | |
697 | uint32_t nops; | |
d017931c | 698 | __be32 * nops_p; |
1da177e4 LT |
699 | uint32_t taglen; |
700 | char * tag; | |
0c4e8c18 | 701 | uint32_t replen; /* expected reply words */ |
66cc0429 | 702 | u32 minorversion; |
1da177e4 LT |
703 | }; |
704 | ||
13c65ce9 BH |
705 | static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) |
706 | { | |
707 | __be32 *p = xdr_reserve_space(xdr, nbytes); | |
708 | BUG_ON(!p); | |
709 | return p; | |
710 | } | |
1da177e4 LT |
711 | |
712 | static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) | |
713 | { | |
8687b63a | 714 | __be32 *p; |
1da177e4 LT |
715 | |
716 | p = xdr_reserve_space(xdr, 4 + len); | |
717 | BUG_ON(p == NULL); | |
718 | xdr_encode_opaque(p, str, len); | |
719 | } | |
720 | ||
0c4e8c18 BH |
721 | static void encode_compound_hdr(struct xdr_stream *xdr, |
722 | struct rpc_rqst *req, | |
723 | struct compound_hdr *hdr) | |
1da177e4 | 724 | { |
8687b63a | 725 | __be32 *p; |
0c4e8c18 BH |
726 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
727 | ||
728 | /* initialize running count of expected bytes in reply. | |
729 | * NOTE: the replied tag SHOULD be the same is the one sent, | |
730 | * but this is not required as a MUST for the server to do so. */ | |
731 | hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; | |
1da177e4 LT |
732 | |
733 | dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); | |
734 | BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); | |
811652bd BH |
735 | p = reserve_space(xdr, 4 + hdr->taglen + 8); |
736 | p = xdr_encode_opaque(p, hdr->tag, hdr->taglen); | |
e75bc1c8 | 737 | *p++ = cpu_to_be32(hdr->minorversion); |
d017931c | 738 | hdr->nops_p = p; |
34558513 | 739 | *p = cpu_to_be32(hdr->nops); |
d017931c AA |
740 | } |
741 | ||
742 | static void encode_nops(struct compound_hdr *hdr) | |
743 | { | |
fc931582 | 744 | BUG_ON(hdr->nops > NFS4_MAX_OPS); |
d017931c | 745 | *hdr->nops_p = htonl(hdr->nops); |
1da177e4 LT |
746 | } |
747 | ||
748 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) | |
749 | { | |
8687b63a | 750 | __be32 *p; |
1da177e4 LT |
751 | |
752 | p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); | |
753 | BUG_ON(p == NULL); | |
754 | xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); | |
755 | } | |
756 | ||
cf8cdbe5 | 757 | static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) |
1da177e4 LT |
758 | { |
759 | char owner_name[IDMAP_NAMESZ]; | |
760 | char owner_group[IDMAP_NAMESZ]; | |
761 | int owner_namelen = 0; | |
762 | int owner_grouplen = 0; | |
8687b63a AV |
763 | __be32 *p; |
764 | __be32 *q; | |
1da177e4 LT |
765 | int len; |
766 | uint32_t bmval0 = 0; | |
767 | uint32_t bmval1 = 0; | |
1da177e4 LT |
768 | |
769 | /* | |
770 | * We reserve enough space to write the entire attribute buffer at once. | |
771 | * In the worst-case, this would be | |
772 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) | |
773 | * = 36 bytes, plus any contribution from variable-length fields | |
23ec6965 | 774 | * such as owner/group. |
1da177e4 LT |
775 | */ |
776 | len = 16; | |
777 | ||
778 | /* Sigh */ | |
779 | if (iap->ia_valid & ATTR_SIZE) | |
780 | len += 8; | |
781 | if (iap->ia_valid & ATTR_MODE) | |
782 | len += 4; | |
783 | if (iap->ia_valid & ATTR_UID) { | |
7539bbab | 784 | owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); |
1da177e4 | 785 | if (owner_namelen < 0) { |
fe82a183 CL |
786 | dprintk("nfs: couldn't resolve uid %d to string\n", |
787 | iap->ia_uid); | |
1da177e4 LT |
788 | /* XXX */ |
789 | strcpy(owner_name, "nobody"); | |
790 | owner_namelen = sizeof("nobody") - 1; | |
791 | /* goto out; */ | |
792 | } | |
793 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); | |
794 | } | |
795 | if (iap->ia_valid & ATTR_GID) { | |
7539bbab | 796 | owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); |
1da177e4 | 797 | if (owner_grouplen < 0) { |
fe82a183 CL |
798 | dprintk("nfs: couldn't resolve gid %d to string\n", |
799 | iap->ia_gid); | |
1da177e4 LT |
800 | strcpy(owner_group, "nobody"); |
801 | owner_grouplen = sizeof("nobody") - 1; | |
802 | /* goto out; */ | |
803 | } | |
804 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); | |
805 | } | |
806 | if (iap->ia_valid & ATTR_ATIME_SET) | |
807 | len += 16; | |
808 | else if (iap->ia_valid & ATTR_ATIME) | |
809 | len += 4; | |
810 | if (iap->ia_valid & ATTR_MTIME_SET) | |
811 | len += 16; | |
812 | else if (iap->ia_valid & ATTR_MTIME) | |
813 | len += 4; | |
13c65ce9 | 814 | p = reserve_space(xdr, len); |
1da177e4 LT |
815 | |
816 | /* | |
817 | * We write the bitmap length now, but leave the bitmap and the attribute | |
818 | * buffer length to be backfilled at the end of this routine. | |
819 | */ | |
e75bc1c8 | 820 | *p++ = cpu_to_be32(2); |
1da177e4 LT |
821 | q = p; |
822 | p += 3; | |
823 | ||
824 | if (iap->ia_valid & ATTR_SIZE) { | |
825 | bmval0 |= FATTR4_WORD0_SIZE; | |
b95be5a9 | 826 | p = xdr_encode_hyper(p, iap->ia_size); |
1da177e4 LT |
827 | } |
828 | if (iap->ia_valid & ATTR_MODE) { | |
829 | bmval1 |= FATTR4_WORD1_MODE; | |
e75bc1c8 | 830 | *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); |
1da177e4 LT |
831 | } |
832 | if (iap->ia_valid & ATTR_UID) { | |
833 | bmval1 |= FATTR4_WORD1_OWNER; | |
811652bd | 834 | p = xdr_encode_opaque(p, owner_name, owner_namelen); |
1da177e4 LT |
835 | } |
836 | if (iap->ia_valid & ATTR_GID) { | |
837 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; | |
811652bd | 838 | p = xdr_encode_opaque(p, owner_group, owner_grouplen); |
1da177e4 LT |
839 | } |
840 | if (iap->ia_valid & ATTR_ATIME_SET) { | |
841 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
e75bc1c8 BH |
842 | *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); |
843 | *p++ = cpu_to_be32(0); | |
844 | *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); | |
845 | *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); | |
1da177e4 LT |
846 | } |
847 | else if (iap->ia_valid & ATTR_ATIME) { | |
848 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
e75bc1c8 | 849 | *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); |
1da177e4 LT |
850 | } |
851 | if (iap->ia_valid & ATTR_MTIME_SET) { | |
852 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
e75bc1c8 BH |
853 | *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); |
854 | *p++ = cpu_to_be32(0); | |
855 | *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); | |
856 | *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); | |
1da177e4 LT |
857 | } |
858 | else if (iap->ia_valid & ATTR_MTIME) { | |
859 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
e75bc1c8 | 860 | *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); |
1da177e4 | 861 | } |
6c0195a4 | 862 | |
1da177e4 LT |
863 | /* |
864 | * Now we backfill the bitmap and the attribute buffer length. | |
865 | */ | |
866 | if (len != ((char *)p - (char *)q) + 4) { | |
fe82a183 | 867 | printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", |
1da177e4 LT |
868 | len, ((char *)p - (char *)q) + 4); |
869 | BUG(); | |
870 | } | |
871 | len = (char *)p - (char *)q - 12; | |
872 | *q++ = htonl(bmval0); | |
873 | *q++ = htonl(bmval1); | |
34558513 | 874 | *q = htonl(len); |
1da177e4 | 875 | |
1da177e4 | 876 | /* out: */ |
1da177e4 LT |
877 | } |
878 | ||
cf8cdbe5 | 879 | static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) |
1da177e4 | 880 | { |
8687b63a | 881 | __be32 *p; |
1da177e4 | 882 | |
13c65ce9 | 883 | p = reserve_space(xdr, 8); |
e75bc1c8 | 884 | *p++ = cpu_to_be32(OP_ACCESS); |
34558513 | 885 | *p = cpu_to_be32(access); |
d017931c | 886 | hdr->nops++; |
dadf0c27 | 887 | hdr->replen += decode_access_maxsz; |
1da177e4 LT |
888 | } |
889 | ||
cf8cdbe5 | 890 | static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 891 | { |
8687b63a | 892 | __be32 *p; |
1da177e4 | 893 | |
13c65ce9 | 894 | p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); |
e75bc1c8 BH |
895 | *p++ = cpu_to_be32(OP_CLOSE); |
896 | *p++ = cpu_to_be32(arg->seqid->sequence->counter); | |
34558513 | 897 | xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
d017931c | 898 | hdr->nops++; |
dadf0c27 | 899 | hdr->replen += decode_close_maxsz; |
1da177e4 LT |
900 | } |
901 | ||
cf8cdbe5 | 902 | static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 903 | { |
8687b63a | 904 | __be32 *p; |
6c0195a4 | 905 | |
13c65ce9 | 906 | p = reserve_space(xdr, 16); |
e75bc1c8 | 907 | *p++ = cpu_to_be32(OP_COMMIT); |
b95be5a9 | 908 | p = xdr_encode_hyper(p, args->offset); |
34558513 | 909 | *p = cpu_to_be32(args->count); |
d017931c | 910 | hdr->nops++; |
dadf0c27 | 911 | hdr->replen += decode_commit_maxsz; |
1da177e4 LT |
912 | } |
913 | ||
cf8cdbe5 | 914 | static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) |
1da177e4 | 915 | { |
8687b63a | 916 | __be32 *p; |
6c0195a4 | 917 | |
13c65ce9 | 918 | p = reserve_space(xdr, 8); |
e75bc1c8 | 919 | *p++ = cpu_to_be32(OP_CREATE); |
34558513 | 920 | *p = cpu_to_be32(create->ftype); |
1da177e4 LT |
921 | |
922 | switch (create->ftype) { | |
923 | case NF4LNK: | |
13c65ce9 | 924 | p = reserve_space(xdr, 4); |
34558513 | 925 | *p = cpu_to_be32(create->u.symlink.len); |
94a6d753 | 926 | xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); |
1da177e4 LT |
927 | break; |
928 | ||
929 | case NF4BLK: case NF4CHR: | |
13c65ce9 | 930 | p = reserve_space(xdr, 8); |
e75bc1c8 | 931 | *p++ = cpu_to_be32(create->u.device.specdata1); |
34558513 | 932 | *p = cpu_to_be32(create->u.device.specdata2); |
1da177e4 LT |
933 | break; |
934 | ||
935 | default: | |
936 | break; | |
937 | } | |
938 | ||
811652bd | 939 | encode_string(xdr, create->name->len, create->name->name); |
d017931c | 940 | hdr->nops++; |
dadf0c27 | 941 | hdr->replen += decode_create_maxsz; |
1da177e4 | 942 | |
cf8cdbe5 | 943 | encode_attrs(xdr, create->attrs, create->server); |
1da177e4 LT |
944 | } |
945 | ||
cf8cdbe5 | 946 | static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) |
1da177e4 | 947 | { |
05d564fe | 948 | __be32 *p; |
1da177e4 | 949 | |
13c65ce9 | 950 | p = reserve_space(xdr, 12); |
e75bc1c8 BH |
951 | *p++ = cpu_to_be32(OP_GETATTR); |
952 | *p++ = cpu_to_be32(1); | |
34558513 | 953 | *p = cpu_to_be32(bitmap); |
d017931c | 954 | hdr->nops++; |
dadf0c27 | 955 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
956 | } |
957 | ||
cf8cdbe5 | 958 | static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) |
1da177e4 | 959 | { |
05d564fe | 960 | __be32 *p; |
1da177e4 | 961 | |
13c65ce9 | 962 | p = reserve_space(xdr, 16); |
e75bc1c8 BH |
963 | *p++ = cpu_to_be32(OP_GETATTR); |
964 | *p++ = cpu_to_be32(2); | |
965 | *p++ = cpu_to_be32(bm0); | |
34558513 | 966 | *p = cpu_to_be32(bm1); |
d017931c | 967 | hdr->nops++; |
dadf0c27 | 968 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
969 | } |
970 | ||
cf8cdbe5 | 971 | static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 972 | { |
cf8cdbe5 AA |
973 | encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], |
974 | bitmask[1] & nfs4_fattr_bitmap[1], hdr); | |
1da177e4 LT |
975 | } |
976 | ||
cf8cdbe5 | 977 | static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 978 | { |
cf8cdbe5 AA |
979 | encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
980 | bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); | |
1da177e4 LT |
981 | } |
982 | ||
cf8cdbe5 | 983 | static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
830b8e33 | 984 | { |
cf8cdbe5 AA |
985 | encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], |
986 | bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); | |
830b8e33 MN |
987 | } |
988 | ||
cf8cdbe5 | 989 | static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 990 | { |
8687b63a | 991 | __be32 *p; |
1da177e4 | 992 | |
13c65ce9 | 993 | p = reserve_space(xdr, 4); |
34558513 | 994 | *p = cpu_to_be32(OP_GETFH); |
d017931c | 995 | hdr->nops++; |
dadf0c27 | 996 | hdr->replen += decode_getfh_maxsz; |
1da177e4 LT |
997 | } |
998 | ||
cf8cdbe5 | 999 | static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1000 | { |
8687b63a | 1001 | __be32 *p; |
1da177e4 | 1002 | |
13c65ce9 | 1003 | p = reserve_space(xdr, 8 + name->len); |
e75bc1c8 | 1004 | *p++ = cpu_to_be32(OP_LINK); |
811652bd | 1005 | xdr_encode_opaque(p, name->name, name->len); |
d017931c | 1006 | hdr->nops++; |
dadf0c27 | 1007 | hdr->replen += decode_link_maxsz; |
1da177e4 LT |
1008 | } |
1009 | ||
911d1aaf TM |
1010 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
1011 | { | |
1012 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) | |
1013 | return block ? NFS4_READW_LT : NFS4_READ_LT; | |
1014 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; | |
1015 | } | |
1016 | ||
1017 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) | |
1018 | { | |
1019 | if (fl->fl_end == OFFSET_MAX) | |
1020 | return ~(uint64_t)0; | |
1021 | return fl->fl_end - fl->fl_start + 1; | |
1022 | } | |
1023 | ||
1da177e4 LT |
1024 | /* |
1025 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 | |
1026 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 | |
1027 | */ | |
cf8cdbe5 | 1028 | static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) |
1da177e4 | 1029 | { |
8687b63a | 1030 | __be32 *p; |
1da177e4 | 1031 | |
13c65ce9 | 1032 | p = reserve_space(xdr, 32); |
e75bc1c8 BH |
1033 | *p++ = cpu_to_be32(OP_LOCK); |
1034 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); | |
1035 | *p++ = cpu_to_be32(args->reclaim); | |
b95be5a9 BH |
1036 | p = xdr_encode_hyper(p, args->fl->fl_start); |
1037 | p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); | |
34558513 | 1038 | *p = cpu_to_be32(args->new_lock_owner); |
911d1aaf | 1039 | if (args->new_lock_owner){ |
13c65ce9 | 1040 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+32); |
e75bc1c8 | 1041 | *p++ = cpu_to_be32(args->open_seqid->sequence->counter); |
93f0cf25 | 1042 | p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); |
e75bc1c8 | 1043 | *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); |
b95be5a9 | 1044 | p = xdr_encode_hyper(p, args->lock_owner.clientid); |
e75bc1c8 | 1045 | *p++ = cpu_to_be32(16); |
93f0cf25 | 1046 | p = xdr_encode_opaque_fixed(p, "lock id:", 8); |
34558513 | 1047 | xdr_encode_hyper(p, args->lock_owner.id); |
1da177e4 LT |
1048 | } |
1049 | else { | |
13c65ce9 | 1050 | p = reserve_space(xdr, NFS4_STATEID_SIZE+4); |
93f0cf25 | 1051 | p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1052 | *p = cpu_to_be32(args->lock_seqid->sequence->counter); |
1da177e4 | 1053 | } |
d017931c | 1054 | hdr->nops++; |
dadf0c27 | 1055 | hdr->replen += decode_lock_maxsz; |
1da177e4 LT |
1056 | } |
1057 | ||
cf8cdbe5 | 1058 | static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) |
1da177e4 | 1059 | { |
8687b63a | 1060 | __be32 *p; |
1da177e4 | 1061 | |
13c65ce9 | 1062 | p = reserve_space(xdr, 52); |
e75bc1c8 BH |
1063 | *p++ = cpu_to_be32(OP_LOCKT); |
1064 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); | |
b95be5a9 BH |
1065 | p = xdr_encode_hyper(p, args->fl->fl_start); |
1066 | p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); | |
1067 | p = xdr_encode_hyper(p, args->lock_owner.clientid); | |
e75bc1c8 | 1068 | *p++ = cpu_to_be32(16); |
93f0cf25 | 1069 | p = xdr_encode_opaque_fixed(p, "lock id:", 8); |
34558513 | 1070 | xdr_encode_hyper(p, args->lock_owner.id); |
d017931c | 1071 | hdr->nops++; |
dadf0c27 | 1072 | hdr->replen += decode_lockt_maxsz; |
1da177e4 LT |
1073 | } |
1074 | ||
cf8cdbe5 | 1075 | static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) |
1da177e4 | 1076 | { |
8687b63a | 1077 | __be32 *p; |
1da177e4 | 1078 | |
13c65ce9 | 1079 | p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); |
e75bc1c8 BH |
1080 | *p++ = cpu_to_be32(OP_LOCKU); |
1081 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); | |
1082 | *p++ = cpu_to_be32(args->seqid->sequence->counter); | |
93f0cf25 | 1083 | p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); |
b95be5a9 | 1084 | p = xdr_encode_hyper(p, args->fl->fl_start); |
34558513 | 1085 | xdr_encode_hyper(p, nfs4_lock_length(args->fl)); |
d017931c | 1086 | hdr->nops++; |
dadf0c27 | 1087 | hdr->replen += decode_locku_maxsz; |
1da177e4 LT |
1088 | } |
1089 | ||
cf8cdbe5 | 1090 | static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 LT |
1091 | { |
1092 | int len = name->len; | |
8687b63a | 1093 | __be32 *p; |
1da177e4 | 1094 | |
13c65ce9 | 1095 | p = reserve_space(xdr, 8 + len); |
e75bc1c8 | 1096 | *p++ = cpu_to_be32(OP_LOOKUP); |
811652bd | 1097 | xdr_encode_opaque(p, name->name, len); |
d017931c | 1098 | hdr->nops++; |
dadf0c27 | 1099 | hdr->replen += decode_lookup_maxsz; |
1da177e4 LT |
1100 | } |
1101 | ||
dc0b027d | 1102 | static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) |
1da177e4 | 1103 | { |
8687b63a | 1104 | __be32 *p; |
1da177e4 | 1105 | |
13c65ce9 | 1106 | p = reserve_space(xdr, 8); |
dc0b027d | 1107 | switch (fmode & (FMODE_READ|FMODE_WRITE)) { |
05d564fe | 1108 | case FMODE_READ: |
e75bc1c8 | 1109 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); |
05d564fe AA |
1110 | break; |
1111 | case FMODE_WRITE: | |
e75bc1c8 | 1112 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); |
05d564fe AA |
1113 | break; |
1114 | case FMODE_READ|FMODE_WRITE: | |
e75bc1c8 | 1115 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); |
05d564fe AA |
1116 | break; |
1117 | default: | |
e75bc1c8 | 1118 | *p++ = cpu_to_be32(0); |
1da177e4 | 1119 | } |
34558513 | 1120 | *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ |
1da177e4 LT |
1121 | } |
1122 | ||
1123 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1124 | { | |
8687b63a | 1125 | __be32 *p; |
1da177e4 LT |
1126 | /* |
1127 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, | |
1128 | * owner 4 = 32 | |
1129 | */ | |
13c65ce9 | 1130 | p = reserve_space(xdr, 8); |
e75bc1c8 | 1131 | *p++ = cpu_to_be32(OP_OPEN); |
34558513 | 1132 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
dc0b027d | 1133 | encode_share_access(xdr, arg->fmode); |
13c65ce9 | 1134 | p = reserve_space(xdr, 28); |
b95be5a9 | 1135 | p = xdr_encode_hyper(p, arg->clientid); |
e75bc1c8 | 1136 | *p++ = cpu_to_be32(16); |
93f0cf25 | 1137 | p = xdr_encode_opaque_fixed(p, "open id:", 8); |
34558513 | 1138 | xdr_encode_hyper(p, arg->id); |
1da177e4 LT |
1139 | } |
1140 | ||
1141 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1142 | { | |
8687b63a | 1143 | __be32 *p; |
1da177e4 | 1144 | |
13c65ce9 | 1145 | p = reserve_space(xdr, 4); |
1da177e4 | 1146 | switch(arg->open_flags & O_EXCL) { |
05d564fe | 1147 | case 0: |
34558513 | 1148 | *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); |
05d564fe AA |
1149 | encode_attrs(xdr, arg->u.attrs, arg->server); |
1150 | break; | |
1151 | default: | |
34558513 | 1152 | *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); |
05d564fe | 1153 | encode_nfs4_verifier(xdr, &arg->u.verifier); |
1da177e4 LT |
1154 | } |
1155 | } | |
1156 | ||
1157 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1158 | { | |
8687b63a | 1159 | __be32 *p; |
1da177e4 | 1160 | |
13c65ce9 | 1161 | p = reserve_space(xdr, 4); |
1da177e4 | 1162 | switch (arg->open_flags & O_CREAT) { |
05d564fe | 1163 | case 0: |
34558513 | 1164 | *p = cpu_to_be32(NFS4_OPEN_NOCREATE); |
05d564fe AA |
1165 | break; |
1166 | default: | |
1167 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); | |
34558513 | 1168 | *p = cpu_to_be32(NFS4_OPEN_CREATE); |
05d564fe | 1169 | encode_createmode(xdr, arg); |
1da177e4 LT |
1170 | } |
1171 | } | |
1172 | ||
bd7bf9d5 | 1173 | static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) |
1da177e4 | 1174 | { |
8687b63a | 1175 | __be32 *p; |
1da177e4 | 1176 | |
13c65ce9 | 1177 | p = reserve_space(xdr, 4); |
1da177e4 | 1178 | switch (delegation_type) { |
05d564fe | 1179 | case 0: |
34558513 | 1180 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); |
05d564fe AA |
1181 | break; |
1182 | case FMODE_READ: | |
34558513 | 1183 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); |
05d564fe AA |
1184 | break; |
1185 | case FMODE_WRITE|FMODE_READ: | |
34558513 | 1186 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); |
05d564fe AA |
1187 | break; |
1188 | default: | |
1189 | BUG(); | |
1da177e4 LT |
1190 | } |
1191 | } | |
1192 | ||
1193 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) | |
1194 | { | |
8687b63a | 1195 | __be32 *p; |
1da177e4 | 1196 | |
13c65ce9 | 1197 | p = reserve_space(xdr, 4); |
34558513 | 1198 | *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); |
1da177e4 LT |
1199 | encode_string(xdr, name->len, name->name); |
1200 | } | |
1201 | ||
bd7bf9d5 | 1202 | static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) |
1da177e4 | 1203 | { |
8687b63a | 1204 | __be32 *p; |
1da177e4 | 1205 | |
13c65ce9 | 1206 | p = reserve_space(xdr, 4); |
34558513 | 1207 | *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); |
1da177e4 LT |
1208 | encode_delegation_type(xdr, type); |
1209 | } | |
1210 | ||
1211 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) | |
1212 | { | |
8687b63a | 1213 | __be32 *p; |
1da177e4 | 1214 | |
13c65ce9 | 1215 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1216 | *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
34558513 | 1217 | xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1218 | encode_string(xdr, name->len, name->name); |
1219 | } | |
1220 | ||
cf8cdbe5 | 1221 | static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) |
1da177e4 LT |
1222 | { |
1223 | encode_openhdr(xdr, arg); | |
1224 | encode_opentype(xdr, arg); | |
1225 | switch (arg->claim) { | |
05d564fe AA |
1226 | case NFS4_OPEN_CLAIM_NULL: |
1227 | encode_claim_null(xdr, arg->name); | |
1228 | break; | |
1229 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
1230 | encode_claim_previous(xdr, arg->u.delegation_type); | |
1231 | break; | |
1232 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: | |
1233 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); | |
1234 | break; | |
1235 | default: | |
1236 | BUG(); | |
1da177e4 | 1237 | } |
d017931c | 1238 | hdr->nops++; |
dadf0c27 | 1239 | hdr->replen += decode_open_maxsz; |
1da177e4 LT |
1240 | } |
1241 | ||
cf8cdbe5 | 1242 | static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1243 | { |
8687b63a | 1244 | __be32 *p; |
1da177e4 | 1245 | |
13c65ce9 | 1246 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); |
e75bc1c8 | 1247 | *p++ = cpu_to_be32(OP_OPEN_CONFIRM); |
93f0cf25 | 1248 | p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1249 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
d017931c | 1250 | hdr->nops++; |
dadf0c27 | 1251 | hdr->replen += decode_open_confirm_maxsz; |
1da177e4 LT |
1252 | } |
1253 | ||
cf8cdbe5 | 1254 | static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1255 | { |
8687b63a | 1256 | __be32 *p; |
1da177e4 | 1257 | |
13c65ce9 | 1258 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); |
e75bc1c8 | 1259 | *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); |
93f0cf25 | 1260 | p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1261 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
dc0b027d | 1262 | encode_share_access(xdr, arg->fmode); |
d017931c | 1263 | hdr->nops++; |
dadf0c27 | 1264 | hdr->replen += decode_open_downgrade_maxsz; |
1da177e4 LT |
1265 | } |
1266 | ||
cf8cdbe5 | 1267 | static void |
d017931c | 1268 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) |
1da177e4 LT |
1269 | { |
1270 | int len = fh->size; | |
8687b63a | 1271 | __be32 *p; |
1da177e4 | 1272 | |
13c65ce9 | 1273 | p = reserve_space(xdr, 8 + len); |
e75bc1c8 | 1274 | *p++ = cpu_to_be32(OP_PUTFH); |
811652bd | 1275 | xdr_encode_opaque(p, fh->data, len); |
d017931c | 1276 | hdr->nops++; |
dadf0c27 | 1277 | hdr->replen += decode_putfh_maxsz; |
1da177e4 LT |
1278 | } |
1279 | ||
cf8cdbe5 | 1280 | static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1281 | { |
05d564fe | 1282 | __be32 *p; |
6c0195a4 | 1283 | |
13c65ce9 | 1284 | p = reserve_space(xdr, 4); |
34558513 | 1285 | *p = cpu_to_be32(OP_PUTROOTFH); |
d017931c | 1286 | hdr->nops++; |
dadf0c27 | 1287 | hdr->replen += decode_putrootfh_maxsz; |
1da177e4 LT |
1288 | } |
1289 | ||
1290 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) | |
1291 | { | |
1da177e4 | 1292 | nfs4_stateid stateid; |
8687b63a | 1293 | __be32 *p; |
1da177e4 | 1294 | |
13c65ce9 | 1295 | p = reserve_space(xdr, NFS4_STATEID_SIZE); |
1da177e4 LT |
1296 | if (ctx->state != NULL) { |
1297 | nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); | |
34558513 | 1298 | xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); |
1da177e4 | 1299 | } else |
34558513 | 1300 | xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1301 | } |
1302 | ||
cf8cdbe5 | 1303 | static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) |
1da177e4 | 1304 | { |
8687b63a | 1305 | __be32 *p; |
1da177e4 | 1306 | |
13c65ce9 | 1307 | p = reserve_space(xdr, 4); |
34558513 | 1308 | *p = cpu_to_be32(OP_READ); |
1da177e4 LT |
1309 | |
1310 | encode_stateid(xdr, args->context); | |
1311 | ||
13c65ce9 | 1312 | p = reserve_space(xdr, 12); |
b95be5a9 | 1313 | p = xdr_encode_hyper(p, args->offset); |
34558513 | 1314 | *p = cpu_to_be32(args->count); |
d017931c | 1315 | hdr->nops++; |
dadf0c27 | 1316 | hdr->replen += decode_read_maxsz; |
1da177e4 LT |
1317 | } |
1318 | ||
cf8cdbe5 | 1319 | static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1320 | { |
97d312d0 MN |
1321 | uint32_t attrs[2] = { |
1322 | FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, | |
1323 | FATTR4_WORD1_MOUNTED_ON_FILEID, | |
1324 | }; | |
8687b63a | 1325 | __be32 *p; |
1da177e4 | 1326 | |
13c65ce9 | 1327 | p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); |
e75bc1c8 | 1328 | *p++ = cpu_to_be32(OP_READDIR); |
b95be5a9 | 1329 | p = xdr_encode_hyper(p, readdir->cookie); |
93f0cf25 | 1330 | p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); |
e75bc1c8 BH |
1331 | *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */ |
1332 | *p++ = cpu_to_be32(readdir->count); | |
1333 | *p++ = cpu_to_be32(2); | |
97d312d0 MN |
1334 | /* Switch to mounted_on_fileid if the server supports it */ |
1335 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) | |
1336 | attrs[0] &= ~FATTR4_WORD0_FILEID; | |
1337 | else | |
1338 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
e75bc1c8 | 1339 | *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); |
34558513 | 1340 | *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); |
d017931c | 1341 | hdr->nops++; |
dadf0c27 | 1342 | hdr->replen += decode_readdir_maxsz; |
44109241 FI |
1343 | dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", |
1344 | __func__, | |
eadf4598 TM |
1345 | (unsigned long long)readdir->cookie, |
1346 | ((u32 *)readdir->verifier.data)[0], | |
1347 | ((u32 *)readdir->verifier.data)[1], | |
1348 | attrs[0] & readdir->bitmask[0], | |
1349 | attrs[1] & readdir->bitmask[1]); | |
1da177e4 LT |
1350 | } |
1351 | ||
cf8cdbe5 | 1352 | static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1353 | { |
8687b63a | 1354 | __be32 *p; |
1da177e4 | 1355 | |
13c65ce9 | 1356 | p = reserve_space(xdr, 4); |
34558513 | 1357 | *p = cpu_to_be32(OP_READLINK); |
d017931c | 1358 | hdr->nops++; |
dadf0c27 | 1359 | hdr->replen += decode_readlink_maxsz; |
1da177e4 LT |
1360 | } |
1361 | ||
cf8cdbe5 | 1362 | static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1363 | { |
8687b63a | 1364 | __be32 *p; |
1da177e4 | 1365 | |
13c65ce9 | 1366 | p = reserve_space(xdr, 8 + name->len); |
e75bc1c8 | 1367 | *p++ = cpu_to_be32(OP_REMOVE); |
811652bd | 1368 | xdr_encode_opaque(p, name->name, name->len); |
d017931c | 1369 | hdr->nops++; |
dadf0c27 | 1370 | hdr->replen += decode_remove_maxsz; |
1da177e4 LT |
1371 | } |
1372 | ||
cf8cdbe5 | 1373 | static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) |
1da177e4 | 1374 | { |
8687b63a | 1375 | __be32 *p; |
1da177e4 | 1376 | |
811652bd BH |
1377 | p = reserve_space(xdr, 4); |
1378 | *p = cpu_to_be32(OP_RENAME); | |
1379 | encode_string(xdr, oldname->len, oldname->name); | |
1380 | encode_string(xdr, newname->len, newname->name); | |
d017931c | 1381 | hdr->nops++; |
dadf0c27 | 1382 | hdr->replen += decode_rename_maxsz; |
1da177e4 LT |
1383 | } |
1384 | ||
cf8cdbe5 | 1385 | static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) |
1da177e4 | 1386 | { |
8687b63a | 1387 | __be32 *p; |
1da177e4 | 1388 | |
13c65ce9 | 1389 | p = reserve_space(xdr, 12); |
e75bc1c8 | 1390 | *p++ = cpu_to_be32(OP_RENEW); |
34558513 | 1391 | xdr_encode_hyper(p, client_stateid->cl_clientid); |
d017931c | 1392 | hdr->nops++; |
dadf0c27 | 1393 | hdr->replen += decode_renew_maxsz; |
1da177e4 LT |
1394 | } |
1395 | ||
cf8cdbe5 | 1396 | static void |
d017931c | 1397 | encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
56ae19f3 | 1398 | { |
8687b63a | 1399 | __be32 *p; |
56ae19f3 | 1400 | |
13c65ce9 | 1401 | p = reserve_space(xdr, 4); |
34558513 | 1402 | *p = cpu_to_be32(OP_RESTOREFH); |
d017931c | 1403 | hdr->nops++; |
dadf0c27 | 1404 | hdr->replen += decode_restorefh_maxsz; |
56ae19f3 TM |
1405 | } |
1406 | ||
23ec6965 | 1407 | static int |
d017931c | 1408 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) |
23ec6965 | 1409 | { |
8687b63a | 1410 | __be32 *p; |
23ec6965 | 1411 | |
13c65ce9 | 1412 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1413 | *p++ = cpu_to_be32(OP_SETATTR); |
34558513 | 1414 | xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); |
13c65ce9 | 1415 | p = reserve_space(xdr, 2*4); |
e75bc1c8 | 1416 | *p++ = cpu_to_be32(1); |
34558513 | 1417 | *p = cpu_to_be32(FATTR4_WORD0_ACL); |
23ec6965 BF |
1418 | if (arg->acl_len % 4) |
1419 | return -EINVAL; | |
13c65ce9 | 1420 | p = reserve_space(xdr, 4); |
34558513 | 1421 | *p = cpu_to_be32(arg->acl_len); |
23ec6965 | 1422 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); |
d017931c | 1423 | hdr->nops++; |
dadf0c27 | 1424 | hdr->replen += decode_setacl_maxsz; |
23ec6965 BF |
1425 | return 0; |
1426 | } | |
1427 | ||
cf8cdbe5 | 1428 | static void |
d017931c | 1429 | encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1430 | { |
8687b63a | 1431 | __be32 *p; |
1da177e4 | 1432 | |
13c65ce9 | 1433 | p = reserve_space(xdr, 4); |
34558513 | 1434 | *p = cpu_to_be32(OP_SAVEFH); |
d017931c | 1435 | hdr->nops++; |
dadf0c27 | 1436 | hdr->replen += decode_savefh_maxsz; |
1da177e4 LT |
1437 | } |
1438 | ||
cf8cdbe5 | 1439 | static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) |
1da177e4 | 1440 | { |
8687b63a | 1441 | __be32 *p; |
6c0195a4 | 1442 | |
13c65ce9 | 1443 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1444 | *p++ = cpu_to_be32(OP_SETATTR); |
34558513 | 1445 | xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); |
d017931c | 1446 | hdr->nops++; |
dadf0c27 | 1447 | hdr->replen += decode_setattr_maxsz; |
cf8cdbe5 | 1448 | encode_attrs(xdr, arg->iap, server); |
1da177e4 LT |
1449 | } |
1450 | ||
cf8cdbe5 | 1451 | static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) |
1da177e4 | 1452 | { |
8687b63a | 1453 | __be32 *p; |
1da177e4 | 1454 | |
13c65ce9 | 1455 | p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); |
e75bc1c8 | 1456 | *p++ = cpu_to_be32(OP_SETCLIENTID); |
34558513 | 1457 | xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1458 | |
1459 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); | |
13c65ce9 | 1460 | p = reserve_space(xdr, 4); |
34558513 | 1461 | *p = cpu_to_be32(setclientid->sc_prog); |
1da177e4 LT |
1462 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); |
1463 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); | |
13c65ce9 | 1464 | p = reserve_space(xdr, 4); |
34558513 | 1465 | *p = cpu_to_be32(setclientid->sc_cb_ident); |
d017931c | 1466 | hdr->nops++; |
dadf0c27 | 1467 | hdr->replen += decode_setclientid_maxsz; |
1da177e4 LT |
1468 | } |
1469 | ||
cf8cdbe5 | 1470 | static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) |
1da177e4 | 1471 | { |
05d564fe | 1472 | __be32 *p; |
1da177e4 | 1473 | |
13c65ce9 | 1474 | p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); |
e75bc1c8 | 1475 | *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); |
b95be5a9 | 1476 | p = xdr_encode_hyper(p, client_state->cl_clientid); |
34558513 | 1477 | xdr_encode_opaque_fixed(p, client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); |
d017931c | 1478 | hdr->nops++; |
dadf0c27 | 1479 | hdr->replen += decode_setclientid_confirm_maxsz; |
1da177e4 LT |
1480 | } |
1481 | ||
cf8cdbe5 | 1482 | static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 1483 | { |
8687b63a | 1484 | __be32 *p; |
1da177e4 | 1485 | |
13c65ce9 | 1486 | p = reserve_space(xdr, 4); |
34558513 | 1487 | *p = cpu_to_be32(OP_WRITE); |
1da177e4 LT |
1488 | |
1489 | encode_stateid(xdr, args->context); | |
1490 | ||
13c65ce9 | 1491 | p = reserve_space(xdr, 16); |
b95be5a9 | 1492 | p = xdr_encode_hyper(p, args->offset); |
e75bc1c8 | 1493 | *p++ = cpu_to_be32(args->stable); |
34558513 | 1494 | *p = cpu_to_be32(args->count); |
1da177e4 LT |
1495 | |
1496 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); | |
d017931c | 1497 | hdr->nops++; |
dadf0c27 | 1498 | hdr->replen += decode_write_maxsz; |
1da177e4 LT |
1499 | } |
1500 | ||
cf8cdbe5 | 1501 | static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) |
1da177e4 | 1502 | { |
8687b63a | 1503 | __be32 *p; |
1da177e4 | 1504 | |
13c65ce9 | 1505 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
1da177e4 | 1506 | |
e75bc1c8 | 1507 | *p++ = cpu_to_be32(OP_DELEGRETURN); |
34558513 | 1508 | xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); |
d017931c | 1509 | hdr->nops++; |
dadf0c27 | 1510 | hdr->replen += decode_delegreturn_maxsz; |
1da177e4 | 1511 | } |
9b7b9fcc | 1512 | |
99fe60d0 | 1513 | #if defined(CONFIG_NFS_V4_1) |
9b7b9fcc | 1514 | /* NFSv4.1 operations */ |
99fe60d0 BH |
1515 | static void encode_exchange_id(struct xdr_stream *xdr, |
1516 | struct nfs41_exchange_id_args *args, | |
1517 | struct compound_hdr *hdr) | |
1518 | { | |
1519 | __be32 *p; | |
1520 | ||
13c65ce9 | 1521 | p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); |
e75bc1c8 | 1522 | *p++ = cpu_to_be32(OP_EXCHANGE_ID); |
34558513 | 1523 | xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); |
99fe60d0 BH |
1524 | |
1525 | encode_string(xdr, args->id_len, args->id); | |
1526 | ||
13c65ce9 | 1527 | p = reserve_space(xdr, 12); |
e75bc1c8 BH |
1528 | *p++ = cpu_to_be32(args->flags); |
1529 | *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ | |
34558513 | 1530 | *p = cpu_to_be32(0); /* zero length implementation id array */ |
99fe60d0 BH |
1531 | hdr->nops++; |
1532 | hdr->replen += decode_exchange_id_maxsz; | |
1533 | } | |
fc931582 AA |
1534 | |
1535 | static void encode_create_session(struct xdr_stream *xdr, | |
1536 | struct nfs41_create_session_args *args, | |
1537 | struct compound_hdr *hdr) | |
1538 | { | |
1539 | __be32 *p; | |
1540 | char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; | |
1541 | uint32_t len; | |
1542 | struct nfs_client *clp = args->client; | |
1543 | ||
42edd698 BH |
1544 | len = scnprintf(machine_name, sizeof(machine_name), "%s", |
1545 | clp->cl_ipaddr); | |
fc931582 | 1546 | |
13c65ce9 | 1547 | p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); |
42edd698 | 1548 | *p++ = cpu_to_be32(OP_CREATE_SESSION); |
b95be5a9 | 1549 | p = xdr_encode_hyper(p, clp->cl_ex_clid); |
e75bc1c8 BH |
1550 | *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ |
1551 | *p++ = cpu_to_be32(args->flags); /*flags */ | |
fc931582 | 1552 | |
fc931582 | 1553 | /* Fore Channel */ |
e75bc1c8 BH |
1554 | *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ |
1555 | *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ | |
1556 | *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ | |
1557 | *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */ | |
1558 | *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ | |
1559 | *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ | |
1560 | *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ | |
fc931582 AA |
1561 | |
1562 | /* Back Channel */ | |
e75bc1c8 BH |
1563 | *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ |
1564 | *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ | |
1565 | *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ | |
1566 | *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ | |
1567 | *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ | |
1568 | *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ | |
1569 | *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ | |
fc931582 | 1570 | |
e75bc1c8 | 1571 | *p++ = cpu_to_be32(args->cb_program); /* cb_program */ |
e75bc1c8 | 1572 | *p++ = cpu_to_be32(1); |
e75bc1c8 | 1573 | *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ |
fc931582 AA |
1574 | |
1575 | /* authsys_parms rfc1831 */ | |
e75bc1c8 | 1576 | *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ |
811652bd | 1577 | p = xdr_encode_opaque(p, machine_name, len); |
e75bc1c8 BH |
1578 | *p++ = cpu_to_be32(0); /* UID */ |
1579 | *p++ = cpu_to_be32(0); /* GID */ | |
34558513 | 1580 | *p = cpu_to_be32(0); /* No more gids */ |
fc931582 AA |
1581 | hdr->nops++; |
1582 | hdr->replen += decode_create_session_maxsz; | |
1583 | } | |
0f3e66c6 AA |
1584 | |
1585 | static void encode_destroy_session(struct xdr_stream *xdr, | |
1586 | struct nfs4_session *session, | |
1587 | struct compound_hdr *hdr) | |
1588 | { | |
1589 | __be32 *p; | |
13c65ce9 | 1590 | p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); |
e75bc1c8 | 1591 | *p++ = cpu_to_be32(OP_DESTROY_SESSION); |
34558513 | 1592 | xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); |
0f3e66c6 AA |
1593 | hdr->nops++; |
1594 | hdr->replen += decode_destroy_session_maxsz; | |
1595 | } | |
99fe60d0 BH |
1596 | #endif /* CONFIG_NFS_V4_1 */ |
1597 | ||
9b7b9fcc AA |
1598 | static void encode_sequence(struct xdr_stream *xdr, |
1599 | const struct nfs4_sequence_args *args, | |
1600 | struct compound_hdr *hdr) | |
1601 | { | |
1602 | #if defined(CONFIG_NFS_V4_1) | |
1603 | struct nfs4_session *session = args->sa_session; | |
fc01cea9 AA |
1604 | struct nfs4_slot_table *tp; |
1605 | struct nfs4_slot *slot; | |
1606 | __be32 *p; | |
9b7b9fcc AA |
1607 | |
1608 | if (!session) | |
1609 | return; | |
1610 | ||
fc01cea9 AA |
1611 | tp = &session->fc_slot_table; |
1612 | ||
1613 | WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); | |
1614 | slot = tp->slots + args->sa_slotid; | |
1615 | ||
13c65ce9 | 1616 | p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); |
e75bc1c8 | 1617 | *p++ = cpu_to_be32(OP_SEQUENCE); |
fc01cea9 AA |
1618 | |
1619 | /* | |
1620 | * Sessionid + seqid + slotid + max slotid + cache_this | |
1621 | */ | |
1622 | dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " | |
1623 | "max_slotid=%d cache_this=%d\n", | |
1624 | __func__, | |
1625 | ((u32 *)session->sess_id.data)[0], | |
1626 | ((u32 *)session->sess_id.data)[1], | |
1627 | ((u32 *)session->sess_id.data)[2], | |
1628 | ((u32 *)session->sess_id.data)[3], | |
1629 | slot->seq_nr, args->sa_slotid, | |
1630 | tp->highest_used_slotid, args->sa_cache_this); | |
93f0cf25 | 1631 | p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); |
e75bc1c8 BH |
1632 | *p++ = cpu_to_be32(slot->seq_nr); |
1633 | *p++ = cpu_to_be32(args->sa_slotid); | |
1634 | *p++ = cpu_to_be32(tp->highest_used_slotid); | |
34558513 | 1635 | *p = cpu_to_be32(args->sa_cache_this); |
9b7b9fcc AA |
1636 | hdr->nops++; |
1637 | hdr->replen += decode_sequence_maxsz; | |
1638 | #endif /* CONFIG_NFS_V4_1 */ | |
1639 | } | |
1640 | ||
1da177e4 LT |
1641 | /* |
1642 | * END OF "GENERIC" ENCODE ROUTINES. | |
1643 | */ | |
1644 | ||
66cc0429 BH |
1645 | static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) |
1646 | { | |
1647 | #if defined(CONFIG_NFS_V4_1) | |
1648 | if (args->sa_session) | |
1649 | return args->sa_session->clp->cl_minorversion; | |
1650 | #endif /* CONFIG_NFS_V4_1 */ | |
1651 | return 0; | |
1652 | } | |
1653 | ||
1da177e4 LT |
1654 | /* |
1655 | * Encode an ACCESS request | |
1656 | */ | |
8687b63a | 1657 | static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) |
1da177e4 LT |
1658 | { |
1659 | struct xdr_stream xdr; | |
1660 | struct compound_hdr hdr = { | |
66cc0429 | 1661 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1662 | }; |
1da177e4 LT |
1663 | |
1664 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1665 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1666 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1667 | encode_putfh(&xdr, args->fh, &hdr); |
1668 | encode_access(&xdr, args->access, &hdr); | |
1669 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1670 | encode_nops(&hdr); |
cf8cdbe5 | 1671 | return 0; |
1da177e4 LT |
1672 | } |
1673 | ||
1674 | /* | |
1675 | * Encode LOOKUP request | |
1676 | */ | |
8687b63a | 1677 | static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) |
1da177e4 LT |
1678 | { |
1679 | struct xdr_stream xdr; | |
1680 | struct compound_hdr hdr = { | |
66cc0429 | 1681 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1682 | }; |
1da177e4 LT |
1683 | |
1684 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1685 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1686 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1687 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1688 | encode_lookup(&xdr, args->name, &hdr); | |
1689 | encode_getfh(&xdr, &hdr); | |
1690 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1691 | encode_nops(&hdr); |
cf8cdbe5 | 1692 | return 0; |
1da177e4 LT |
1693 | } |
1694 | ||
1695 | /* | |
1696 | * Encode LOOKUP_ROOT request | |
1697 | */ | |
8687b63a | 1698 | static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) |
1da177e4 LT |
1699 | { |
1700 | struct xdr_stream xdr; | |
1701 | struct compound_hdr hdr = { | |
66cc0429 | 1702 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1703 | }; |
1da177e4 LT |
1704 | |
1705 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1706 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1707 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1708 | encode_putrootfh(&xdr, &hdr); |
1709 | encode_getfh(&xdr, &hdr); | |
1710 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1711 | encode_nops(&hdr); |
cf8cdbe5 | 1712 | return 0; |
1da177e4 LT |
1713 | } |
1714 | ||
1715 | /* | |
1716 | * Encode REMOVE request | |
1717 | */ | |
4fdc17b2 | 1718 | static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) |
1da177e4 LT |
1719 | { |
1720 | struct xdr_stream xdr; | |
1721 | struct compound_hdr hdr = { | |
66cc0429 | 1722 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1723 | }; |
1da177e4 LT |
1724 | |
1725 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1726 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1727 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1728 | encode_putfh(&xdr, args->fh, &hdr); |
1729 | encode_remove(&xdr, &args->name, &hdr); | |
1730 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1731 | encode_nops(&hdr); |
cf8cdbe5 | 1732 | return 0; |
1da177e4 LT |
1733 | } |
1734 | ||
1735 | /* | |
1736 | * Encode RENAME request | |
1737 | */ | |
8687b63a | 1738 | static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) |
1da177e4 LT |
1739 | { |
1740 | struct xdr_stream xdr; | |
1741 | struct compound_hdr hdr = { | |
66cc0429 | 1742 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1743 | }; |
1da177e4 LT |
1744 | |
1745 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1746 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1747 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1748 | encode_putfh(&xdr, args->old_dir, &hdr); |
1749 | encode_savefh(&xdr, &hdr); | |
1750 | encode_putfh(&xdr, args->new_dir, &hdr); | |
1751 | encode_rename(&xdr, args->old_name, args->new_name, &hdr); | |
1752 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1753 | encode_restorefh(&xdr, &hdr); | |
1754 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1755 | encode_nops(&hdr); |
cf8cdbe5 | 1756 | return 0; |
1da177e4 LT |
1757 | } |
1758 | ||
1759 | /* | |
1760 | * Encode LINK request | |
1761 | */ | |
8687b63a | 1762 | static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) |
1da177e4 LT |
1763 | { |
1764 | struct xdr_stream xdr; | |
1765 | struct compound_hdr hdr = { | |
66cc0429 | 1766 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1767 | }; |
1da177e4 LT |
1768 | |
1769 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1770 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1771 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1772 | encode_putfh(&xdr, args->fh, &hdr); |
1773 | encode_savefh(&xdr, &hdr); | |
1774 | encode_putfh(&xdr, args->dir_fh, &hdr); | |
1775 | encode_link(&xdr, args->name, &hdr); | |
1776 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1777 | encode_restorefh(&xdr, &hdr); | |
1778 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1779 | encode_nops(&hdr); |
cf8cdbe5 | 1780 | return 0; |
1da177e4 LT |
1781 | } |
1782 | ||
1783 | /* | |
1784 | * Encode CREATE request | |
1785 | */ | |
8687b63a | 1786 | static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1787 | { |
1788 | struct xdr_stream xdr; | |
1789 | struct compound_hdr hdr = { | |
66cc0429 | 1790 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1791 | }; |
1da177e4 LT |
1792 | |
1793 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1794 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1795 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1796 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1797 | encode_savefh(&xdr, &hdr); | |
1798 | encode_create(&xdr, args, &hdr); | |
1799 | encode_getfh(&xdr, &hdr); | |
1800 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1801 | encode_restorefh(&xdr, &hdr); | |
1802 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1803 | encode_nops(&hdr); |
cf8cdbe5 | 1804 | return 0; |
1da177e4 LT |
1805 | } |
1806 | ||
1807 | /* | |
1808 | * Encode SYMLINK request | |
1809 | */ | |
8687b63a | 1810 | static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1811 | { |
1812 | return nfs4_xdr_enc_create(req, p, args); | |
1813 | } | |
1814 | ||
1815 | /* | |
1816 | * Encode GETATTR request | |
1817 | */ | |
8687b63a | 1818 | static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) |
1da177e4 LT |
1819 | { |
1820 | struct xdr_stream xdr; | |
1821 | struct compound_hdr hdr = { | |
66cc0429 | 1822 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1823 | }; |
1da177e4 LT |
1824 | |
1825 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1826 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1827 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1828 | encode_putfh(&xdr, args->fh, &hdr); |
1829 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1830 | encode_nops(&hdr); |
cf8cdbe5 | 1831 | return 0; |
1da177e4 LT |
1832 | } |
1833 | ||
1834 | /* | |
1835 | * Encode a CLOSE request | |
1836 | */ | |
8687b63a | 1837 | static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 | 1838 | { |
05d564fe AA |
1839 | struct xdr_stream xdr; |
1840 | struct compound_hdr hdr = { | |
66cc0429 | 1841 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 1842 | }; |
05d564fe AA |
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->fh, &hdr); |
1848 | encode_close(&xdr, args, &hdr); | |
1849 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1850 | encode_nops(&hdr); |
cf8cdbe5 | 1851 | return 0; |
1da177e4 LT |
1852 | } |
1853 | ||
1854 | /* | |
1855 | * Encode an OPEN request | |
1856 | */ | |
8687b63a | 1857 | static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1858 | { |
1859 | struct xdr_stream xdr; | |
1860 | struct compound_hdr hdr = { | |
66cc0429 | 1861 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1862 | }; |
1da177e4 LT |
1863 | |
1864 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1865 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1866 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1867 | encode_putfh(&xdr, args->fh, &hdr); |
1868 | encode_savefh(&xdr, &hdr); | |
1869 | encode_open(&xdr, args, &hdr); | |
1870 | encode_getfh(&xdr, &hdr); | |
1871 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1872 | encode_restorefh(&xdr, &hdr); | |
1873 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1874 | encode_nops(&hdr); |
cf8cdbe5 | 1875 | return 0; |
1da177e4 LT |
1876 | } |
1877 | ||
1878 | /* | |
1879 | * Encode an OPEN_CONFIRM request | |
1880 | */ | |
8687b63a | 1881 | static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) |
1da177e4 LT |
1882 | { |
1883 | struct xdr_stream xdr; | |
1884 | struct compound_hdr hdr = { | |
d017931c | 1885 | .nops = 0, |
1da177e4 | 1886 | }; |
1da177e4 LT |
1887 | |
1888 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1889 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1890 | encode_putfh(&xdr, args->fh, &hdr); |
1891 | encode_open_confirm(&xdr, args, &hdr); | |
d017931c | 1892 | encode_nops(&hdr); |
cf8cdbe5 | 1893 | return 0; |
1da177e4 LT |
1894 | } |
1895 | ||
1896 | /* | |
1897 | * Encode an OPEN request with no attributes. | |
1898 | */ | |
8687b63a | 1899 | static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1900 | { |
1901 | struct xdr_stream xdr; | |
1902 | struct compound_hdr hdr = { | |
66cc0429 | 1903 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1904 | }; |
1da177e4 LT |
1905 | |
1906 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1907 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1908 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1909 | encode_putfh(&xdr, args->fh, &hdr); |
1910 | encode_open(&xdr, args, &hdr); | |
1911 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1912 | encode_nops(&hdr); |
cf8cdbe5 | 1913 | return 0; |
1da177e4 LT |
1914 | } |
1915 | ||
1916 | /* | |
1917 | * Encode an OPEN_DOWNGRADE request | |
1918 | */ | |
8687b63a | 1919 | static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 LT |
1920 | { |
1921 | struct xdr_stream xdr; | |
1922 | struct compound_hdr hdr = { | |
66cc0429 | 1923 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1924 | }; |
1da177e4 LT |
1925 | |
1926 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1927 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1928 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1929 | encode_putfh(&xdr, args->fh, &hdr); |
1930 | encode_open_downgrade(&xdr, args, &hdr); | |
1931 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1932 | encode_nops(&hdr); |
cf8cdbe5 | 1933 | return 0; |
1da177e4 LT |
1934 | } |
1935 | ||
1936 | /* | |
1937 | * Encode a LOCK request | |
1938 | */ | |
8687b63a | 1939 | static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) |
1da177e4 LT |
1940 | { |
1941 | struct xdr_stream xdr; | |
1942 | struct compound_hdr hdr = { | |
66cc0429 | 1943 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1944 | }; |
1da177e4 LT |
1945 | |
1946 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1947 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1948 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1949 | encode_putfh(&xdr, args->fh, &hdr); |
1950 | encode_lock(&xdr, args, &hdr); | |
d017931c | 1951 | encode_nops(&hdr); |
cf8cdbe5 | 1952 | return 0; |
1da177e4 LT |
1953 | } |
1954 | ||
1955 | /* | |
1956 | * Encode a LOCKT request | |
1957 | */ | |
8687b63a | 1958 | static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) |
1da177e4 LT |
1959 | { |
1960 | struct xdr_stream xdr; | |
1961 | struct compound_hdr hdr = { | |
66cc0429 | 1962 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1963 | }; |
1da177e4 LT |
1964 | |
1965 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1966 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1967 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1968 | encode_putfh(&xdr, args->fh, &hdr); |
1969 | encode_lockt(&xdr, args, &hdr); | |
d017931c | 1970 | encode_nops(&hdr); |
cf8cdbe5 | 1971 | return 0; |
1da177e4 LT |
1972 | } |
1973 | ||
1974 | /* | |
1975 | * Encode a LOCKU request | |
1976 | */ | |
8687b63a | 1977 | static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) |
1da177e4 LT |
1978 | { |
1979 | struct xdr_stream xdr; | |
1980 | struct compound_hdr hdr = { | |
66cc0429 | 1981 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1982 | }; |
1da177e4 LT |
1983 | |
1984 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1985 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1986 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1987 | encode_putfh(&xdr, args->fh, &hdr); |
1988 | encode_locku(&xdr, args, &hdr); | |
d017931c | 1989 | encode_nops(&hdr); |
cf8cdbe5 | 1990 | return 0; |
1da177e4 LT |
1991 | } |
1992 | ||
1993 | /* | |
1994 | * Encode a READLINK request | |
1995 | */ | |
8687b63a | 1996 | static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) |
1da177e4 LT |
1997 | { |
1998 | struct xdr_stream xdr; | |
1999 | struct compound_hdr hdr = { | |
66cc0429 | 2000 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2001 | }; |
1da177e4 LT |
2002 | |
2003 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2004 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2005 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2006 | encode_putfh(&xdr, args->fh, &hdr); |
2007 | encode_readlink(&xdr, args, req, &hdr); | |
e3a535e1 | 2008 | |
28f56694 | 2009 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
e3a535e1 | 2010 | args->pgbase, args->pglen); |
d017931c | 2011 | encode_nops(&hdr); |
cf8cdbe5 | 2012 | return 0; |
1da177e4 LT |
2013 | } |
2014 | ||
2015 | /* | |
2016 | * Encode a READDIR request | |
2017 | */ | |
8687b63a | 2018 | static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) |
1da177e4 LT |
2019 | { |
2020 | struct xdr_stream xdr; | |
2021 | struct compound_hdr hdr = { | |
66cc0429 | 2022 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2023 | }; |
1da177e4 LT |
2024 | |
2025 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2026 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2027 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2028 | encode_putfh(&xdr, args->fh, &hdr); |
2029 | encode_readdir(&xdr, args, req, &hdr); | |
d6ac02df | 2030 | |
28f56694 | 2031 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
d6ac02df TM |
2032 | args->pgbase, args->count); |
2033 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", | |
28f56694 | 2034 | __func__, hdr.replen << 2, args->pages, |
d6ac02df | 2035 | args->pgbase, args->count); |
d017931c | 2036 | encode_nops(&hdr); |
cf8cdbe5 | 2037 | return 0; |
1da177e4 LT |
2038 | } |
2039 | ||
2040 | /* | |
2041 | * Encode a READ request | |
2042 | */ | |
8687b63a | 2043 | static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) |
1da177e4 | 2044 | { |
1da177e4 LT |
2045 | struct xdr_stream xdr; |
2046 | struct compound_hdr hdr = { | |
66cc0429 | 2047 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2048 | }; |
1da177e4 LT |
2049 | |
2050 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2051 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2052 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2053 | encode_putfh(&xdr, args->fh, &hdr); |
2054 | encode_read(&xdr, args, &hdr); | |
1da177e4 | 2055 | |
28f56694 | 2056 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, |
1da177e4 | 2057 | args->pages, args->pgbase, args->count); |
4f22ccc3 | 2058 | req->rq_rcv_buf.flags |= XDRBUF_READ; |
d017931c | 2059 | encode_nops(&hdr); |
cf8cdbe5 | 2060 | return 0; |
1da177e4 LT |
2061 | } |
2062 | ||
2063 | /* | |
2064 | * Encode an SETATTR request | |
2065 | */ | |
8687b63a | 2066 | static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) |
1da177e4 | 2067 | { |
05d564fe AA |
2068 | struct xdr_stream xdr; |
2069 | struct compound_hdr hdr = { | |
66cc0429 | 2070 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 2071 | }; |
05d564fe AA |
2072 | |
2073 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2074 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2075 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2076 | encode_putfh(&xdr, args->fh, &hdr); |
2077 | encode_setattr(&xdr, args, args->server, &hdr); | |
2078 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2079 | encode_nops(&hdr); |
cf8cdbe5 | 2080 | return 0; |
1da177e4 LT |
2081 | } |
2082 | ||
029d105e BF |
2083 | /* |
2084 | * Encode a GETACL request | |
2085 | */ | |
2086 | static int | |
8687b63a | 2087 | nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, |
029d105e BF |
2088 | struct nfs_getaclargs *args) |
2089 | { | |
2090 | struct xdr_stream xdr; | |
029d105e | 2091 | struct compound_hdr hdr = { |
66cc0429 | 2092 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
029d105e | 2093 | }; |
28f56694 | 2094 | uint32_t replen; |
029d105e BF |
2095 | |
2096 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2097 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2098 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 | 2099 | encode_putfh(&xdr, args->fh, &hdr); |
28f56694 | 2100 | replen = hdr.replen + nfs4_fattr_bitmap_maxsz + 1; |
cf8cdbe5 AA |
2101 | encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); |
2102 | ||
28f56694 | 2103 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, |
029d105e | 2104 | args->acl_pages, args->acl_pgbase, args->acl_len); |
d017931c | 2105 | encode_nops(&hdr); |
cf8cdbe5 | 2106 | return 0; |
029d105e BF |
2107 | } |
2108 | ||
1da177e4 LT |
2109 | /* |
2110 | * Encode a WRITE request | |
2111 | */ | |
8687b63a | 2112 | static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
2113 | { |
2114 | struct xdr_stream xdr; | |
2115 | struct compound_hdr hdr = { | |
66cc0429 | 2116 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2117 | }; |
1da177e4 LT |
2118 | |
2119 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2120 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2121 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2122 | encode_putfh(&xdr, args->fh, &hdr); |
2123 | encode_write(&xdr, args, &hdr); | |
4f22ccc3 | 2124 | req->rq_snd_buf.flags |= XDRBUF_WRITE; |
cf8cdbe5 | 2125 | encode_getfattr(&xdr, args->bitmask, &hdr); |
d017931c | 2126 | encode_nops(&hdr); |
cf8cdbe5 | 2127 | return 0; |
1da177e4 LT |
2128 | } |
2129 | ||
2130 | /* | |
2131 | * a COMMIT request | |
2132 | */ | |
8687b63a | 2133 | static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
2134 | { |
2135 | struct xdr_stream xdr; | |
2136 | struct compound_hdr hdr = { | |
66cc0429 | 2137 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2138 | }; |
1da177e4 LT |
2139 | |
2140 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2141 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2142 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2143 | encode_putfh(&xdr, args->fh, &hdr); |
2144 | encode_commit(&xdr, args, &hdr); | |
2145 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2146 | encode_nops(&hdr); |
cf8cdbe5 | 2147 | return 0; |
1da177e4 LT |
2148 | } |
2149 | ||
2150 | /* | |
2151 | * FSINFO request | |
2152 | */ | |
8687b63a | 2153 | static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) |
1da177e4 LT |
2154 | { |
2155 | struct xdr_stream xdr; | |
2156 | struct compound_hdr hdr = { | |
66cc0429 | 2157 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2158 | }; |
1da177e4 LT |
2159 | |
2160 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2161 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2162 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2163 | encode_putfh(&xdr, args->fh, &hdr); |
2164 | encode_fsinfo(&xdr, args->bitmask, &hdr); | |
d017931c | 2165 | encode_nops(&hdr); |
cf8cdbe5 | 2166 | return 0; |
1da177e4 LT |
2167 | } |
2168 | ||
2169 | /* | |
2170 | * a PATHCONF request | |
2171 | */ | |
8687b63a | 2172 | static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) |
1da177e4 | 2173 | { |
1da177e4 LT |
2174 | struct xdr_stream xdr; |
2175 | struct compound_hdr hdr = { | |
66cc0429 | 2176 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2177 | }; |
1da177e4 LT |
2178 | |
2179 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2180 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2181 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2182 | encode_putfh(&xdr, args->fh, &hdr); |
2183 | encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], | |
2184 | &hdr); | |
d017931c | 2185 | encode_nops(&hdr); |
cf8cdbe5 | 2186 | return 0; |
1da177e4 LT |
2187 | } |
2188 | ||
2189 | /* | |
2190 | * a STATFS request | |
2191 | */ | |
8687b63a | 2192 | static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) |
1da177e4 | 2193 | { |
1da177e4 LT |
2194 | struct xdr_stream xdr; |
2195 | struct compound_hdr hdr = { | |
66cc0429 | 2196 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2197 | }; |
1da177e4 LT |
2198 | |
2199 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2200 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2201 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2202 | encode_putfh(&xdr, args->fh, &hdr); |
2203 | encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], | |
2204 | args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); | |
d017931c | 2205 | encode_nops(&hdr); |
cf8cdbe5 | 2206 | return 0; |
1da177e4 LT |
2207 | } |
2208 | ||
2209 | /* | |
2210 | * GETATTR_BITMAP request | |
2211 | */ | |
43652ad5 BH |
2212 | static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, |
2213 | struct nfs4_server_caps_arg *args) | |
1da177e4 LT |
2214 | { |
2215 | struct xdr_stream xdr; | |
2216 | struct compound_hdr hdr = { | |
66cc0429 | 2217 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2218 | }; |
1da177e4 LT |
2219 | |
2220 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2221 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2222 | encode_sequence(&xdr, &args->seq_args, &hdr); |
43652ad5 | 2223 | encode_putfh(&xdr, args->fhandle, &hdr); |
cf8cdbe5 AA |
2224 | encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| |
2225 | FATTR4_WORD0_LINK_SUPPORT| | |
2226 | FATTR4_WORD0_SYMLINK_SUPPORT| | |
2227 | FATTR4_WORD0_ACLSUPPORT, &hdr); | |
d017931c | 2228 | encode_nops(&hdr); |
cf8cdbe5 | 2229 | return 0; |
1da177e4 LT |
2230 | } |
2231 | ||
2232 | /* | |
2233 | * a RENEW request | |
2234 | */ | |
8687b63a | 2235 | static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2236 | { |
2237 | struct xdr_stream xdr; | |
2238 | struct compound_hdr hdr = { | |
d017931c | 2239 | .nops = 0, |
1da177e4 LT |
2240 | }; |
2241 | ||
2242 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2243 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 2244 | encode_renew(&xdr, clp, &hdr); |
d017931c | 2245 | encode_nops(&hdr); |
cf8cdbe5 | 2246 | return 0; |
1da177e4 LT |
2247 | } |
2248 | ||
2249 | /* | |
2250 | * a SETCLIENTID request | |
2251 | */ | |
8687b63a | 2252 | static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) |
1da177e4 LT |
2253 | { |
2254 | struct xdr_stream xdr; | |
2255 | struct compound_hdr hdr = { | |
d017931c | 2256 | .nops = 0, |
1da177e4 LT |
2257 | }; |
2258 | ||
2259 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2260 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 2261 | encode_setclientid(&xdr, sc, &hdr); |
d017931c | 2262 | encode_nops(&hdr); |
cf8cdbe5 | 2263 | return 0; |
1da177e4 LT |
2264 | } |
2265 | ||
2266 | /* | |
2267 | * a SETCLIENTID_CONFIRM request | |
2268 | */ | |
8687b63a | 2269 | static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2270 | { |
2271 | struct xdr_stream xdr; | |
2272 | struct compound_hdr hdr = { | |
d017931c | 2273 | .nops = 0, |
1da177e4 LT |
2274 | }; |
2275 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
1da177e4 LT |
2276 | |
2277 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2278 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
2279 | encode_setclientid_confirm(&xdr, clp, &hdr); |
2280 | encode_putrootfh(&xdr, &hdr); | |
2281 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
d017931c | 2282 | encode_nops(&hdr); |
cf8cdbe5 | 2283 | return 0; |
1da177e4 LT |
2284 | } |
2285 | ||
2286 | /* | |
2287 | * DELEGRETURN request | |
2288 | */ | |
8687b63a | 2289 | static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) |
1da177e4 LT |
2290 | { |
2291 | struct xdr_stream xdr; | |
2292 | struct compound_hdr hdr = { | |
66cc0429 | 2293 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2294 | }; |
1da177e4 LT |
2295 | |
2296 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2297 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2298 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2299 | encode_putfh(&xdr, args->fhandle, &hdr); |
2300 | encode_delegreturn(&xdr, args->stateid, &hdr); | |
2301 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2302 | encode_nops(&hdr); |
cf8cdbe5 | 2303 | return 0; |
1da177e4 LT |
2304 | } |
2305 | ||
683b57b4 TM |
2306 | /* |
2307 | * Encode FS_LOCATIONS request | |
2308 | */ | |
8687b63a | 2309 | static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) |
683b57b4 TM |
2310 | { |
2311 | struct xdr_stream xdr; | |
2312 | struct compound_hdr hdr = { | |
66cc0429 | 2313 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
683b57b4 | 2314 | }; |
28f56694 | 2315 | uint32_t replen; |
683b57b4 TM |
2316 | |
2317 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2318 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2319 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2320 | encode_putfh(&xdr, args->dir_fh, &hdr); |
2321 | encode_lookup(&xdr, args->name, &hdr); | |
28f56694 | 2322 | replen = hdr.replen; /* get the attribute into args->page */ |
cf8cdbe5 AA |
2323 | encode_fs_locations(&xdr, args->bitmask, &hdr); |
2324 | ||
28f56694 | 2325 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, |
683b57b4 | 2326 | 0, PAGE_SIZE); |
d017931c | 2327 | encode_nops(&hdr); |
cf8cdbe5 | 2328 | return 0; |
683b57b4 TM |
2329 | } |
2330 | ||
99fe60d0 BH |
2331 | #if defined(CONFIG_NFS_V4_1) |
2332 | /* | |
2333 | * EXCHANGE_ID request | |
2334 | */ | |
2335 | static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, | |
2336 | struct nfs41_exchange_id_args *args) | |
2337 | { | |
2338 | struct xdr_stream xdr; | |
2339 | struct compound_hdr hdr = { | |
2340 | .minorversion = args->client->cl_minorversion, | |
2341 | }; | |
2342 | ||
2343 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2344 | encode_compound_hdr(&xdr, req, &hdr); | |
2345 | encode_exchange_id(&xdr, args, &hdr); | |
2346 | encode_nops(&hdr); | |
2347 | return 0; | |
2348 | } | |
2050f0cc | 2349 | |
fc931582 AA |
2350 | /* |
2351 | * a CREATE_SESSION request | |
2352 | */ | |
2353 | static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, | |
2354 | struct nfs41_create_session_args *args) | |
2355 | { | |
2356 | struct xdr_stream xdr; | |
2357 | struct compound_hdr hdr = { | |
2358 | .minorversion = args->client->cl_minorversion, | |
2359 | }; | |
2360 | ||
2361 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2362 | encode_compound_hdr(&xdr, req, &hdr); | |
2363 | encode_create_session(&xdr, args, &hdr); | |
2364 | encode_nops(&hdr); | |
2365 | return 0; | |
2366 | } | |
2367 | ||
0f3e66c6 AA |
2368 | /* |
2369 | * a DESTROY_SESSION request | |
2370 | */ | |
2371 | static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, | |
2372 | struct nfs4_session *session) | |
2373 | { | |
2374 | struct xdr_stream xdr; | |
2375 | struct compound_hdr hdr = { | |
2376 | .minorversion = session->clp->cl_minorversion, | |
2377 | }; | |
2378 | ||
2379 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2380 | encode_compound_hdr(&xdr, req, &hdr); | |
2381 | encode_destroy_session(&xdr, session, &hdr); | |
2382 | encode_nops(&hdr); | |
2383 | return 0; | |
2384 | } | |
2385 | ||
fc01cea9 AA |
2386 | /* |
2387 | * a SEQUENCE request | |
2388 | */ | |
2389 | static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, | |
2390 | struct nfs4_sequence_args *args) | |
2391 | { | |
2392 | struct xdr_stream xdr; | |
2393 | struct compound_hdr hdr = { | |
2394 | .minorversion = nfs4_xdr_minorversion(args), | |
2395 | }; | |
2396 | ||
2397 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2398 | encode_compound_hdr(&xdr, req, &hdr); | |
2399 | encode_sequence(&xdr, args, &hdr); | |
2400 | encode_nops(&hdr); | |
2401 | return 0; | |
2402 | } | |
2403 | ||
2050f0cc AA |
2404 | /* |
2405 | * a GET_LEASE_TIME request | |
2406 | */ | |
2407 | static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, | |
2408 | struct nfs4_get_lease_time_args *args) | |
2409 | { | |
2410 | struct xdr_stream xdr; | |
2411 | struct compound_hdr hdr = { | |
2412 | .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), | |
2413 | }; | |
2414 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
2415 | ||
2416 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2417 | encode_compound_hdr(&xdr, req, &hdr); | |
2418 | encode_sequence(&xdr, &args->la_seq_args, &hdr); | |
2419 | encode_putrootfh(&xdr, &hdr); | |
2420 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
2421 | encode_nops(&hdr); | |
2422 | return 0; | |
2423 | } | |
99fe60d0 BH |
2424 | #endif /* CONFIG_NFS_V4_1 */ |
2425 | ||
1da177e4 LT |
2426 | /* |
2427 | * START OF "GENERIC" DECODE ROUTINES. | |
2428 | * These may look a little ugly since they are imported from a "generic" | |
2429 | * set of XDR encode/decode routines which are intended to be shared by | |
2430 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
2431 | * | |
2432 | * If the pain of reading these is too great, it should be a straightforward | |
2433 | * task to translate them into Linux-specific versions which are more | |
2434 | * consistent with the style used in NFSv2/v3... | |
2435 | */ | |
1da177e4 LT |
2436 | #define COPYMEM(x,nbytes) do { \ |
2437 | memcpy((x), p, nbytes); \ | |
2438 | p += XDR_QUADLEN(nbytes); \ | |
2439 | } while (0) | |
2440 | ||
2441 | #define READ_BUF(nbytes) do { \ | |
2442 | p = xdr_inline_decode(xdr, nbytes); \ | |
e4cc6ee2 | 2443 | if (unlikely(!p)) { \ |
686841b3 | 2444 | print_overflow_msg(__func__, xdr); \ |
1da177e4 LT |
2445 | return -EIO; \ |
2446 | } \ | |
2447 | } while (0) | |
2448 | ||
686841b3 BH |
2449 | static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) |
2450 | { | |
2451 | dprintk("nfs: %s: prematurely hit end of receive buffer. " | |
2452 | "Remaining buffer length is %tu words.\n", | |
2453 | func, xdr->end - xdr->p); | |
2454 | } | |
2455 | ||
683b57b4 | 2456 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
1da177e4 | 2457 | { |
8687b63a | 2458 | __be32 *p; |
1da177e4 LT |
2459 | |
2460 | READ_BUF(4); | |
6f723f77 | 2461 | *len = be32_to_cpup(p++); |
1da177e4 LT |
2462 | READ_BUF(*len); |
2463 | *string = (char *)p; | |
2464 | return 0; | |
2465 | } | |
2466 | ||
2467 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
2468 | { | |
8687b63a | 2469 | __be32 *p; |
1da177e4 LT |
2470 | |
2471 | READ_BUF(8); | |
6f723f77 BH |
2472 | hdr->status = be32_to_cpup(p++); |
2473 | hdr->taglen = be32_to_cpup(p++); | |
6c0195a4 | 2474 | |
1da177e4 LT |
2475 | READ_BUF(hdr->taglen + 4); |
2476 | hdr->tag = (char *)p; | |
2477 | p += XDR_QUADLEN(hdr->taglen); | |
6f723f77 | 2478 | hdr->nops = be32_to_cpup(p++); |
aadf6152 BH |
2479 | if (unlikely(hdr->nops < 1)) |
2480 | return nfs4_stat_to_errno(hdr->status); | |
1da177e4 LT |
2481 | return 0; |
2482 | } | |
2483 | ||
2484 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) | |
2485 | { | |
8687b63a | 2486 | __be32 *p; |
1da177e4 LT |
2487 | uint32_t opnum; |
2488 | int32_t nfserr; | |
2489 | ||
2490 | READ_BUF(8); | |
6f723f77 | 2491 | opnum = be32_to_cpup(p++); |
1da177e4 | 2492 | if (opnum != expected) { |
fe82a183 CL |
2493 | dprintk("nfs: Server returned operation" |
2494 | " %d but we issued a request for %d\n", | |
1da177e4 LT |
2495 | opnum, expected); |
2496 | return -EIO; | |
2497 | } | |
6f723f77 | 2498 | nfserr = be32_to_cpup(p++); |
1da177e4 | 2499 | if (nfserr != NFS_OK) |
856dff3d | 2500 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
2501 | return 0; |
2502 | } | |
2503 | ||
2504 | /* Dummy routine */ | |
adfa6f98 | 2505 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
1da177e4 | 2506 | { |
8687b63a | 2507 | __be32 *p; |
683b57b4 | 2508 | unsigned int strlen; |
1da177e4 LT |
2509 | char *str; |
2510 | ||
2511 | READ_BUF(12); | |
2512 | return decode_opaque_inline(xdr, &strlen, &str); | |
2513 | } | |
2514 | ||
2515 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) | |
2516 | { | |
8687b63a AV |
2517 | uint32_t bmlen; |
2518 | __be32 *p; | |
1da177e4 LT |
2519 | |
2520 | READ_BUF(4); | |
6f723f77 | 2521 | bmlen = be32_to_cpup(p++); |
1da177e4 LT |
2522 | |
2523 | bitmap[0] = bitmap[1] = 0; | |
2524 | READ_BUF((bmlen << 2)); | |
2525 | if (bmlen > 0) { | |
6f723f77 | 2526 | bitmap[0] = be32_to_cpup(p++); |
1da177e4 | 2527 | if (bmlen > 1) |
6f723f77 | 2528 | bitmap[1] = be32_to_cpup(p++); |
1da177e4 LT |
2529 | } |
2530 | return 0; | |
2531 | } | |
2532 | ||
8687b63a | 2533 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
1da177e4 | 2534 | { |
8687b63a | 2535 | __be32 *p; |
1da177e4 LT |
2536 | |
2537 | READ_BUF(4); | |
6f723f77 | 2538 | *attrlen = be32_to_cpup(p++); |
1da177e4 LT |
2539 | *savep = xdr->p; |
2540 | return 0; | |
2541 | } | |
2542 | ||
2543 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) | |
2544 | { | |
2545 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { | |
2546 | decode_attr_bitmap(xdr, bitmask); | |
2547 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; | |
2548 | } else | |
2549 | bitmask[0] = bitmask[1] = 0; | |
44109241 | 2550 | dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); |
1da177e4 LT |
2551 | return 0; |
2552 | } | |
2553 | ||
2554 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) | |
2555 | { | |
8687b63a | 2556 | __be32 *p; |
409924e4 | 2557 | int ret = 0; |
1da177e4 LT |
2558 | |
2559 | *type = 0; | |
2560 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) | |
2561 | return -EIO; | |
2562 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { | |
2563 | READ_BUF(4); | |
6f723f77 | 2564 | *type = be32_to_cpup(p++); |
1da177e4 | 2565 | if (*type < NF4REG || *type > NF4NAMEDATTR) { |
3110ff80 | 2566 | dprintk("%s: bad type %d\n", __func__, *type); |
1da177e4 LT |
2567 | return -EIO; |
2568 | } | |
2569 | bitmap[0] &= ~FATTR4_WORD0_TYPE; | |
409924e4 | 2570 | ret = NFS_ATTR_FATTR_TYPE; |
1da177e4 | 2571 | } |
bca79478 | 2572 | dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); |
409924e4 | 2573 | return ret; |
1da177e4 LT |
2574 | } |
2575 | ||
2576 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) | |
2577 | { | |
8687b63a | 2578 | __be32 *p; |
409924e4 | 2579 | int ret = 0; |
1da177e4 LT |
2580 | |
2581 | *change = 0; | |
2582 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) | |
2583 | return -EIO; | |
2584 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { | |
2585 | READ_BUF(8); | |
3ceb4dbb | 2586 | p = xdr_decode_hyper(p, change); |
1da177e4 | 2587 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; |
409924e4 | 2588 | ret = NFS_ATTR_FATTR_CHANGE; |
1da177e4 | 2589 | } |
3110ff80 | 2590 | dprintk("%s: change attribute=%Lu\n", __func__, |
1da177e4 | 2591 | (unsigned long long)*change); |
409924e4 | 2592 | return ret; |
1da177e4 LT |
2593 | } |
2594 | ||
2595 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) | |
2596 | { | |
8687b63a | 2597 | __be32 *p; |
409924e4 | 2598 | int ret = 0; |
1da177e4 LT |
2599 | |
2600 | *size = 0; | |
2601 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) | |
2602 | return -EIO; | |
2603 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { | |
2604 | READ_BUF(8); | |
3ceb4dbb | 2605 | p = xdr_decode_hyper(p, size); |
1da177e4 | 2606 | bitmap[0] &= ~FATTR4_WORD0_SIZE; |
409924e4 | 2607 | ret = NFS_ATTR_FATTR_SIZE; |
1da177e4 | 2608 | } |
3110ff80 | 2609 | dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); |
409924e4 | 2610 | return ret; |
1da177e4 LT |
2611 | } |
2612 | ||
2613 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2614 | { | |
8687b63a | 2615 | __be32 *p; |
1da177e4 LT |
2616 | |
2617 | *res = 0; | |
2618 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) | |
2619 | return -EIO; | |
2620 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { | |
2621 | READ_BUF(4); | |
6f723f77 | 2622 | *res = be32_to_cpup(p++); |
1da177e4 LT |
2623 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; |
2624 | } | |
3110ff80 | 2625 | dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2626 | return 0; |
2627 | } | |
2628 | ||
2629 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2630 | { | |
8687b63a | 2631 | __be32 *p; |
1da177e4 LT |
2632 | |
2633 | *res = 0; | |
2634 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) | |
2635 | return -EIO; | |
2636 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { | |
2637 | READ_BUF(4); | |
6f723f77 | 2638 | *res = be32_to_cpup(p++); |
1da177e4 LT |
2639 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; |
2640 | } | |
3110ff80 | 2641 | dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2642 | return 0; |
2643 | } | |
2644 | ||
8b4bdcf8 | 2645 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
1da177e4 | 2646 | { |
8687b63a | 2647 | __be32 *p; |
409924e4 | 2648 | int ret = 0; |
1da177e4 LT |
2649 | |
2650 | fsid->major = 0; | |
2651 | fsid->minor = 0; | |
2652 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) | |
2653 | return -EIO; | |
2654 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { | |
2655 | READ_BUF(16); | |
3ceb4dbb BH |
2656 | p = xdr_decode_hyper(p, &fsid->major); |
2657 | p = xdr_decode_hyper(p, &fsid->minor); | |
1da177e4 | 2658 | bitmap[0] &= ~FATTR4_WORD0_FSID; |
409924e4 | 2659 | ret = NFS_ATTR_FATTR_FSID; |
1da177e4 | 2660 | } |
3110ff80 | 2661 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, |
1da177e4 LT |
2662 | (unsigned long long)fsid->major, |
2663 | (unsigned long long)fsid->minor); | |
409924e4 | 2664 | return ret; |
1da177e4 LT |
2665 | } |
2666 | ||
2667 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2668 | { | |
8687b63a | 2669 | __be32 *p; |
1da177e4 LT |
2670 | |
2671 | *res = 60; | |
2672 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) | |
2673 | return -EIO; | |
2674 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { | |
2675 | READ_BUF(4); | |
6f723f77 | 2676 | *res = be32_to_cpup(p++); |
1da177e4 LT |
2677 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; |
2678 | } | |
3110ff80 | 2679 | dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2680 | return 0; |
2681 | } | |
2682 | ||
2683 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2684 | { | |
8687b63a | 2685 | __be32 *p; |
1da177e4 LT |
2686 | |
2687 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; | |
2688 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) | |
2689 | return -EIO; | |
2690 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { | |
2691 | READ_BUF(4); | |
6f723f77 | 2692 | *res = be32_to_cpup(p++); |
1da177e4 LT |
2693 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; |
2694 | } | |
3110ff80 | 2695 | dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2696 | return 0; |
2697 | } | |
2698 | ||
2699 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) | |
2700 | { | |
8687b63a | 2701 | __be32 *p; |
409924e4 | 2702 | int ret = 0; |
1da177e4 LT |
2703 | |
2704 | *fileid = 0; | |
2705 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) | |
2706 | return -EIO; | |
2707 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { | |
2708 | READ_BUF(8); | |
3ceb4dbb | 2709 | p = xdr_decode_hyper(p, fileid); |
1da177e4 | 2710 | bitmap[0] &= ~FATTR4_WORD0_FILEID; |
409924e4 | 2711 | ret = NFS_ATTR_FATTR_FILEID; |
1da177e4 | 2712 | } |
3110ff80 | 2713 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2714 | return ret; |
1da177e4 LT |
2715 | } |
2716 | ||
99baf625 MN |
2717 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
2718 | { | |
8687b63a | 2719 | __be32 *p; |
409924e4 | 2720 | int ret = 0; |
99baf625 MN |
2721 | |
2722 | *fileid = 0; | |
2723 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) | |
2724 | return -EIO; | |
2725 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { | |
2726 | READ_BUF(8); | |
3ceb4dbb | 2727 | p = xdr_decode_hyper(p, fileid); |
99baf625 | 2728 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; |
409924e4 | 2729 | ret = NFS_ATTR_FATTR_FILEID; |
99baf625 | 2730 | } |
3110ff80 | 2731 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2732 | return ret; |
99baf625 MN |
2733 | } |
2734 | ||
1da177e4 LT |
2735 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2736 | { | |
8687b63a | 2737 | __be32 *p; |
1da177e4 LT |
2738 | int status = 0; |
2739 | ||
2740 | *res = 0; | |
2741 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) | |
2742 | return -EIO; | |
2743 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { | |
2744 | READ_BUF(8); | |
3ceb4dbb | 2745 | p = xdr_decode_hyper(p, res); |
1da177e4 LT |
2746 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; |
2747 | } | |
3110ff80 | 2748 | dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2749 | return status; |
2750 | } | |
2751 | ||
2752 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2753 | { | |
8687b63a | 2754 | __be32 *p; |
1da177e4 LT |
2755 | int status = 0; |
2756 | ||
2757 | *res = 0; | |
2758 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) | |
2759 | return -EIO; | |
2760 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { | |
2761 | READ_BUF(8); | |
3ceb4dbb | 2762 | p = xdr_decode_hyper(p, res); |
1da177e4 LT |
2763 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; |
2764 | } | |
3110ff80 | 2765 | dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2766 | return status; |
2767 | } | |
2768 | ||
2769 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2770 | { | |
8687b63a | 2771 | __be32 *p; |
1da177e4 LT |
2772 | int status = 0; |
2773 | ||
2774 | *res = 0; | |
2775 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) | |
2776 | return -EIO; | |
2777 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { | |
2778 | READ_BUF(8); | |
3ceb4dbb | 2779 | p = xdr_decode_hyper(p, res); |
1da177e4 LT |
2780 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; |
2781 | } | |
3110ff80 | 2782 | dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2783 | return status; |
2784 | } | |
2785 | ||
7aaa0b3b MN |
2786 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
2787 | { | |
464ad6b1 | 2788 | u32 n; |
8687b63a | 2789 | __be32 *p; |
7aaa0b3b MN |
2790 | int status = 0; |
2791 | ||
2792 | READ_BUF(4); | |
6f723f77 | 2793 | n = be32_to_cpup(p++); |
33a43f28 AA |
2794 | if (n == 0) |
2795 | goto root_path; | |
7aaa0b3b MN |
2796 | dprintk("path "); |
2797 | path->ncomponents = 0; | |
2798 | while (path->ncomponents < n) { | |
2799 | struct nfs4_string *component = &path->components[path->ncomponents]; | |
2800 | status = decode_opaque_inline(xdr, &component->len, &component->data); | |
2801 | if (unlikely(status != 0)) | |
2802 | goto out_eio; | |
2803 | if (path->ncomponents != n) | |
2804 | dprintk("/"); | |
2805 | dprintk("%s", component->data); | |
2806 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) | |
2807 | path->ncomponents++; | |
2808 | else { | |
2809 | dprintk("cannot parse %d components in path\n", n); | |
2810 | goto out_eio; | |
2811 | } | |
2812 | } | |
2813 | out: | |
2814 | dprintk("\n"); | |
2815 | return status; | |
33a43f28 AA |
2816 | root_path: |
2817 | /* a root pathname is sent as a zero component4 */ | |
2818 | path->ncomponents = 1; | |
2819 | path->components[0].len=0; | |
2820 | path->components[0].data=NULL; | |
2821 | dprintk("path /\n"); | |
2822 | goto out; | |
7aaa0b3b MN |
2823 | out_eio: |
2824 | dprintk(" status %d", status); | |
2825 | status = -EIO; | |
2826 | goto out; | |
2827 | } | |
2828 | ||
2829 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) | |
683b57b4 TM |
2830 | { |
2831 | int n; | |
8687b63a | 2832 | __be32 *p; |
683b57b4 TM |
2833 | int status = -EIO; |
2834 | ||
2835 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) | |
2836 | goto out; | |
2837 | status = 0; | |
2838 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) | |
2839 | goto out; | |
3110ff80 | 2840 | dprintk("%s: fsroot ", __func__); |
7aaa0b3b | 2841 | status = decode_pathname(xdr, &res->fs_path); |
683b57b4 TM |
2842 | if (unlikely(status != 0)) |
2843 | goto out; | |
2844 | READ_BUF(4); | |
6f723f77 | 2845 | n = be32_to_cpup(p++); |
683b57b4 TM |
2846 | if (n <= 0) |
2847 | goto out_eio; | |
2848 | res->nlocations = 0; | |
2849 | while (res->nlocations < n) { | |
464ad6b1 | 2850 | u32 m; |
7aaa0b3b | 2851 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; |
683b57b4 | 2852 | |
7aaa0b3b | 2853 | READ_BUF(4); |
6f723f77 | 2854 | m = be32_to_cpup(p++); |
7aaa0b3b MN |
2855 | |
2856 | loc->nservers = 0; | |
3110ff80 | 2857 | dprintk("%s: servers ", __func__); |
7aaa0b3b MN |
2858 | while (loc->nservers < m) { |
2859 | struct nfs4_string *server = &loc->servers[loc->nservers]; | |
2860 | status = decode_opaque_inline(xdr, &server->len, &server->data); | |
2861 | if (unlikely(status != 0)) | |
2862 | goto out_eio; | |
2863 | dprintk("%s ", server->data); | |
2864 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) | |
2865 | loc->nservers++; | |
2866 | else { | |
464ad6b1 CL |
2867 | unsigned int i; |
2868 | dprintk("%s: using first %u of %u servers " | |
2869 | "returned for location %u\n", | |
3110ff80 | 2870 | __func__, |
464ad6b1 CL |
2871 | NFS4_FS_LOCATION_MAXSERVERS, |
2872 | m, res->nlocations); | |
7aaa0b3b | 2873 | for (i = loc->nservers; i < m; i++) { |
2e42c3e2 | 2874 | unsigned int len; |
7aaa0b3b MN |
2875 | char *data; |
2876 | status = decode_opaque_inline(xdr, &len, &data); | |
2877 | if (unlikely(status != 0)) | |
2878 | goto out_eio; | |
2879 | } | |
2880 | } | |
2881 | } | |
2882 | status = decode_pathname(xdr, &loc->rootpath); | |
683b57b4 TM |
2883 | if (unlikely(status != 0)) |
2884 | goto out_eio; | |
7aaa0b3b | 2885 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
683b57b4 TM |
2886 | res->nlocations++; |
2887 | } | |
409924e4 TM |
2888 | if (res->nlocations != 0) |
2889 | status = NFS_ATTR_FATTR_V4_REFERRAL; | |
683b57b4 | 2890 | out: |
3110ff80 | 2891 | dprintk("%s: fs_locations done, error = %d\n", __func__, status); |
683b57b4 TM |
2892 | return status; |
2893 | out_eio: | |
2894 | status = -EIO; | |
2895 | goto out; | |
2896 | } | |
2897 | ||
1da177e4 LT |
2898 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2899 | { | |
8687b63a | 2900 | __be32 *p; |
1da177e4 LT |
2901 | int status = 0; |
2902 | ||
2903 | *res = 0; | |
2904 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) | |
2905 | return -EIO; | |
2906 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { | |
2907 | READ_BUF(8); | |
3ceb4dbb | 2908 | p = xdr_decode_hyper(p, res); |
1da177e4 LT |
2909 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; |
2910 | } | |
3110ff80 | 2911 | dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2912 | return status; |
2913 | } | |
2914 | ||
2915 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) | |
2916 | { | |
8687b63a | 2917 | __be32 *p; |
1da177e4 LT |
2918 | int status = 0; |
2919 | ||
2920 | *maxlink = 1; | |
2921 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) | |
2922 | return -EIO; | |
2923 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { | |
2924 | READ_BUF(4); | |
6f723f77 | 2925 | *maxlink = be32_to_cpup(p++); |
1da177e4 LT |
2926 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; |
2927 | } | |
3110ff80 | 2928 | dprintk("%s: maxlink=%u\n", __func__, *maxlink); |
1da177e4 LT |
2929 | return status; |
2930 | } | |
2931 | ||
2932 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) | |
2933 | { | |
8687b63a | 2934 | __be32 *p; |
1da177e4 LT |
2935 | int status = 0; |
2936 | ||
2937 | *maxname = 1024; | |
2938 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) | |
2939 | return -EIO; | |
2940 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { | |
2941 | READ_BUF(4); | |
6f723f77 | 2942 | *maxname = be32_to_cpup(p++); |
1da177e4 LT |
2943 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; |
2944 | } | |
3110ff80 | 2945 | dprintk("%s: maxname=%u\n", __func__, *maxname); |
1da177e4 LT |
2946 | return status; |
2947 | } | |
2948 | ||
2949 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2950 | { | |
8687b63a | 2951 | __be32 *p; |
1da177e4 LT |
2952 | int status = 0; |
2953 | ||
2954 | *res = 1024; | |
2955 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) | |
2956 | return -EIO; | |
2957 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { | |
2958 | uint64_t maxread; | |
2959 | READ_BUF(8); | |
3ceb4dbb | 2960 | p = xdr_decode_hyper(p, &maxread); |
1da177e4 LT |
2961 | if (maxread > 0x7FFFFFFF) |
2962 | maxread = 0x7FFFFFFF; | |
2963 | *res = (uint32_t)maxread; | |
2964 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; | |
2965 | } | |
3110ff80 | 2966 | dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
2967 | return status; |
2968 | } | |
2969 | ||
2970 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2971 | { | |
8687b63a | 2972 | __be32 *p; |
1da177e4 LT |
2973 | int status = 0; |
2974 | ||
2975 | *res = 1024; | |
2976 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) | |
2977 | return -EIO; | |
2978 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { | |
2979 | uint64_t maxwrite; | |
2980 | READ_BUF(8); | |
3ceb4dbb | 2981 | p = xdr_decode_hyper(p, &maxwrite); |
1da177e4 LT |
2982 | if (maxwrite > 0x7FFFFFFF) |
2983 | maxwrite = 0x7FFFFFFF; | |
2984 | *res = (uint32_t)maxwrite; | |
2985 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; | |
2986 | } | |
3110ff80 | 2987 | dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
2988 | return status; |
2989 | } | |
2990 | ||
bca79478 | 2991 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) |
1da177e4 | 2992 | { |
bca79478 | 2993 | uint32_t tmp; |
8687b63a | 2994 | __be32 *p; |
409924e4 | 2995 | int ret = 0; |
1da177e4 LT |
2996 | |
2997 | *mode = 0; | |
2998 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) | |
2999 | return -EIO; | |
3000 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { | |
3001 | READ_BUF(4); | |
6f723f77 | 3002 | tmp = be32_to_cpup(p++); |
bca79478 | 3003 | *mode = tmp & ~S_IFMT; |
1da177e4 | 3004 | bitmap[1] &= ~FATTR4_WORD1_MODE; |
409924e4 | 3005 | ret = NFS_ATTR_FATTR_MODE; |
1da177e4 | 3006 | } |
3110ff80 | 3007 | dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); |
409924e4 | 3008 | return ret; |
1da177e4 LT |
3009 | } |
3010 | ||
3011 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) | |
3012 | { | |
8687b63a | 3013 | __be32 *p; |
409924e4 | 3014 | int ret = 0; |
1da177e4 LT |
3015 | |
3016 | *nlink = 1; | |
3017 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) | |
3018 | return -EIO; | |
3019 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { | |
3020 | READ_BUF(4); | |
6f723f77 | 3021 | *nlink = be32_to_cpup(p++); |
1da177e4 | 3022 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; |
409924e4 | 3023 | ret = NFS_ATTR_FATTR_NLINK; |
1da177e4 | 3024 | } |
3110ff80 | 3025 | dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); |
409924e4 | 3026 | return ret; |
1da177e4 LT |
3027 | } |
3028 | ||
2e42c3e2 | 3029 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) |
1da177e4 | 3030 | { |
8687b63a AV |
3031 | uint32_t len; |
3032 | __be32 *p; | |
409924e4 | 3033 | int ret = 0; |
1da177e4 LT |
3034 | |
3035 | *uid = -2; | |
3036 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) | |
3037 | return -EIO; | |
3038 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { | |
3039 | READ_BUF(4); | |
6f723f77 | 3040 | len = be32_to_cpup(p++); |
1da177e4 LT |
3041 | READ_BUF(len); |
3042 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
3043 | if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) |
3044 | ret = NFS_ATTR_FATTR_OWNER; | |
3045 | else | |
1da177e4 | 3046 | dprintk("%s: nfs_map_name_to_uid failed!\n", |
3110ff80 | 3047 | __func__); |
1da177e4 | 3048 | } else |
fe82a183 | 3049 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3050 | __func__, len); |
1da177e4 LT |
3051 | bitmap[1] &= ~FATTR4_WORD1_OWNER; |
3052 | } | |
3110ff80 | 3053 | dprintk("%s: uid=%d\n", __func__, (int)*uid); |
409924e4 | 3054 | return ret; |
1da177e4 LT |
3055 | } |
3056 | ||
2e42c3e2 | 3057 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) |
1da177e4 | 3058 | { |
8687b63a AV |
3059 | uint32_t len; |
3060 | __be32 *p; | |
409924e4 | 3061 | int ret = 0; |
1da177e4 LT |
3062 | |
3063 | *gid = -2; | |
3064 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) | |
3065 | return -EIO; | |
3066 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { | |
3067 | READ_BUF(4); | |
6f723f77 | 3068 | len = be32_to_cpup(p++); |
1da177e4 LT |
3069 | READ_BUF(len); |
3070 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
3071 | if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) |
3072 | ret = NFS_ATTR_FATTR_GROUP; | |
3073 | else | |
1da177e4 | 3074 | dprintk("%s: nfs_map_group_to_gid failed!\n", |
3110ff80 | 3075 | __func__); |
1da177e4 | 3076 | } else |
fe82a183 | 3077 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3078 | __func__, len); |
1da177e4 LT |
3079 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; |
3080 | } | |
3110ff80 | 3081 | dprintk("%s: gid=%d\n", __func__, (int)*gid); |
409924e4 | 3082 | return ret; |
1da177e4 LT |
3083 | } |
3084 | ||
3085 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) | |
3086 | { | |
8687b63a AV |
3087 | uint32_t major = 0, minor = 0; |
3088 | __be32 *p; | |
409924e4 | 3089 | int ret = 0; |
1da177e4 LT |
3090 | |
3091 | *rdev = MKDEV(0,0); | |
3092 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) | |
3093 | return -EIO; | |
3094 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { | |
3095 | dev_t tmp; | |
3096 | ||
3097 | READ_BUF(8); | |
6f723f77 BH |
3098 | major = be32_to_cpup(p++); |
3099 | minor = be32_to_cpup(p++); | |
1da177e4 LT |
3100 | tmp = MKDEV(major, minor); |
3101 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) | |
3102 | *rdev = tmp; | |
3103 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; | |
409924e4 | 3104 | ret = NFS_ATTR_FATTR_RDEV; |
1da177e4 | 3105 | } |
3110ff80 | 3106 | dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); |
409924e4 | 3107 | return ret; |
1da177e4 LT |
3108 | } |
3109 | ||
3110 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3111 | { | |
8687b63a | 3112 | __be32 *p; |
1da177e4 LT |
3113 | int status = 0; |
3114 | ||
3115 | *res = 0; | |
3116 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) | |
3117 | return -EIO; | |
3118 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { | |
3119 | READ_BUF(8); | |
3ceb4dbb | 3120 | p = xdr_decode_hyper(p, res); |
1da177e4 LT |
3121 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; |
3122 | } | |
3110ff80 | 3123 | dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
3124 | return status; |
3125 | } | |
3126 | ||
3127 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3128 | { | |
8687b63a | 3129 | __be32 *p; |
1da177e4 LT |
3130 | int status = 0; |
3131 | ||
3132 | *res = 0; | |
3133 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) | |
3134 | return -EIO; | |
3135 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { | |
3136 | READ_BUF(8); | |
3ceb4dbb | 3137 | p = xdr_decode_hyper(p, res); |
1da177e4 LT |
3138 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; |
3139 | } | |
3110ff80 | 3140 | dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
3141 | return status; |
3142 | } | |
3143 | ||
3144 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3145 | { | |
8687b63a | 3146 | __be32 *p; |
1da177e4 LT |
3147 | int status = 0; |
3148 | ||
3149 | *res = 0; | |
3150 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) | |
3151 | return -EIO; | |
3152 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { | |
3153 | READ_BUF(8); | |
3ceb4dbb | 3154 | p = xdr_decode_hyper(p, res); |
1da177e4 LT |
3155 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; |
3156 | } | |
3110ff80 | 3157 | dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
3158 | return status; |
3159 | } | |
3160 | ||
3161 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) | |
3162 | { | |
8687b63a | 3163 | __be32 *p; |
409924e4 | 3164 | int ret = 0; |
1da177e4 LT |
3165 | |
3166 | *used = 0; | |
3167 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) | |
3168 | return -EIO; | |
3169 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { | |
3170 | READ_BUF(8); | |
3ceb4dbb | 3171 | p = xdr_decode_hyper(p, used); |
1da177e4 | 3172 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; |
409924e4 | 3173 | ret = NFS_ATTR_FATTR_SPACE_USED; |
1da177e4 | 3174 | } |
3110ff80 | 3175 | dprintk("%s: space used=%Lu\n", __func__, |
1da177e4 | 3176 | (unsigned long long)*used); |
409924e4 | 3177 | return ret; |
1da177e4 LT |
3178 | } |
3179 | ||
3180 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) | |
3181 | { | |
8687b63a | 3182 | __be32 *p; |
1da177e4 LT |
3183 | uint64_t sec; |
3184 | uint32_t nsec; | |
3185 | ||
3186 | READ_BUF(12); | |
3ceb4dbb | 3187 | p = xdr_decode_hyper(p, &sec); |
6f723f77 | 3188 | nsec = be32_to_cpup(p++); |
1da177e4 LT |
3189 | time->tv_sec = (time_t)sec; |
3190 | time->tv_nsec = (long)nsec; | |
3191 | return 0; | |
3192 | } | |
3193 | ||
3194 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3195 | { | |
3196 | int status = 0; | |
3197 | ||
3198 | time->tv_sec = 0; | |
3199 | time->tv_nsec = 0; | |
3200 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) | |
3201 | return -EIO; | |
3202 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { | |
3203 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3204 | if (status == 0) |
3205 | status = NFS_ATTR_FATTR_ATIME; | |
1da177e4 LT |
3206 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; |
3207 | } | |
3110ff80 | 3208 | dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3209 | return status; |
3210 | } | |
3211 | ||
3212 | static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3213 | { | |
3214 | int status = 0; | |
3215 | ||
3216 | time->tv_sec = 0; | |
3217 | time->tv_nsec = 0; | |
3218 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) | |
3219 | return -EIO; | |
3220 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { | |
3221 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3222 | if (status == 0) |
3223 | status = NFS_ATTR_FATTR_CTIME; | |
1da177e4 LT |
3224 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; |
3225 | } | |
3110ff80 | 3226 | dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3227 | return status; |
3228 | } | |
3229 | ||
3230 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3231 | { | |
3232 | int status = 0; | |
3233 | ||
3234 | time->tv_sec = 0; | |
3235 | time->tv_nsec = 0; | |
3236 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) | |
3237 | return -EIO; | |
3238 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { | |
3239 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3240 | if (status == 0) |
3241 | status = NFS_ATTR_FATTR_MTIME; | |
1da177e4 LT |
3242 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; |
3243 | } | |
3110ff80 | 3244 | dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3245 | return status; |
3246 | } | |
3247 | ||
8687b63a | 3248 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
1da177e4 LT |
3249 | { |
3250 | unsigned int attrwords = XDR_QUADLEN(attrlen); | |
3251 | unsigned int nwords = xdr->p - savep; | |
3252 | ||
3253 | if (unlikely(attrwords != nwords)) { | |
fe82a183 CL |
3254 | dprintk("%s: server returned incorrect attribute length: " |
3255 | "%u %c %u\n", | |
3110ff80 | 3256 | __func__, |
1da177e4 LT |
3257 | attrwords << 2, |
3258 | (attrwords < nwords) ? '<' : '>', | |
3259 | nwords << 2); | |
3260 | return -EIO; | |
3261 | } | |
3262 | return 0; | |
3263 | } | |
3264 | ||
3265 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3266 | { | |
8687b63a | 3267 | __be32 *p; |
1da177e4 LT |
3268 | |
3269 | READ_BUF(20); | |
6f723f77 | 3270 | cinfo->atomic = be32_to_cpup(p++); |
3ceb4dbb BH |
3271 | p = xdr_decode_hyper(p, &cinfo->before); |
3272 | p = xdr_decode_hyper(p, &cinfo->after); | |
1da177e4 LT |
3273 | return 0; |
3274 | } | |
3275 | ||
3276 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) | |
3277 | { | |
8687b63a | 3278 | __be32 *p; |
1da177e4 LT |
3279 | uint32_t supp, acc; |
3280 | int status; | |
3281 | ||
3282 | status = decode_op_hdr(xdr, OP_ACCESS); | |
3283 | if (status) | |
3284 | return status; | |
3285 | READ_BUF(8); | |
6f723f77 BH |
3286 | supp = be32_to_cpup(p++); |
3287 | acc = be32_to_cpup(p++); | |
1da177e4 LT |
3288 | access->supported = supp; |
3289 | access->access = acc; | |
3290 | return 0; | |
3291 | } | |
3292 | ||
07d30434 | 3293 | static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) |
1da177e4 | 3294 | { |
8687b63a | 3295 | __be32 *p; |
07d30434 BH |
3296 | |
3297 | p = xdr_inline_decode(xdr, len); | |
3298 | if (likely(p)) { | |
3299 | memcpy(buf, p, len); | |
3300 | return 0; | |
3301 | } | |
3302 | print_overflow_msg(__func__, xdr); | |
3303 | return -EIO; | |
3304 | } | |
3305 | ||
3306 | static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) | |
3307 | { | |
3308 | return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); | |
3309 | } | |
3310 | ||
3311 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3312 | { | |
1da177e4 LT |
3313 | int status; |
3314 | ||
3315 | status = decode_op_hdr(xdr, OP_CLOSE); | |
c1d51931 TM |
3316 | if (status != -EIO) |
3317 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
3318 | if (!status) |
3319 | status = decode_stateid(xdr, &res->stateid); | |
3320 | return status; | |
1da177e4 LT |
3321 | } |
3322 | ||
db942bbd BH |
3323 | static int decode_verifier(struct xdr_stream *xdr, void *verifier) |
3324 | { | |
3325 | return decode_opaque_fixed(xdr, verifier, 8); | |
3326 | } | |
3327 | ||
1da177e4 LT |
3328 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) |
3329 | { | |
1da177e4 LT |
3330 | int status; |
3331 | ||
3332 | status = decode_op_hdr(xdr, OP_COMMIT); | |
db942bbd BH |
3333 | if (!status) |
3334 | status = decode_verifier(xdr, res->verf->verifier); | |
3335 | return status; | |
1da177e4 LT |
3336 | } |
3337 | ||
3338 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3339 | { | |
8687b63a | 3340 | __be32 *p; |
1da177e4 LT |
3341 | uint32_t bmlen; |
3342 | int status; | |
3343 | ||
3344 | status = decode_op_hdr(xdr, OP_CREATE); | |
3345 | if (status) | |
3346 | return status; | |
3347 | if ((status = decode_change_info(xdr, cinfo))) | |
3348 | return status; | |
3349 | READ_BUF(4); | |
6f723f77 | 3350 | bmlen = be32_to_cpup(p++); |
1da177e4 LT |
3351 | READ_BUF(bmlen << 2); |
3352 | return 0; | |
3353 | } | |
3354 | ||
3355 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) | |
3356 | { | |
8687b63a | 3357 | __be32 *savep; |
6c0195a4 | 3358 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 LT |
3359 | int status; |
3360 | ||
3361 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3362 | goto xdr_error; | |
3363 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3364 | goto xdr_error; | |
3365 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3366 | goto xdr_error; | |
3367 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) | |
3368 | goto xdr_error; | |
3369 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) | |
3370 | goto xdr_error; | |
3371 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) | |
3372 | goto xdr_error; | |
3373 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) | |
3374 | goto xdr_error; | |
3375 | status = verify_attr_len(xdr, savep, attrlen); | |
3376 | xdr_error: | |
3110ff80 | 3377 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3378 | return status; |
3379 | } | |
6c0195a4 | 3380 | |
1da177e4 LT |
3381 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) |
3382 | { | |
8687b63a | 3383 | __be32 *savep; |
6c0195a4 | 3384 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3385 | int status; |
6c0195a4 | 3386 | |
1da177e4 LT |
3387 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3388 | goto xdr_error; | |
3389 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3390 | goto xdr_error; | |
3391 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3392 | goto xdr_error; | |
3393 | ||
3394 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) | |
3395 | goto xdr_error; | |
3396 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) | |
3397 | goto xdr_error; | |
3398 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) | |
3399 | goto xdr_error; | |
3400 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) | |
3401 | goto xdr_error; | |
3402 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) | |
3403 | goto xdr_error; | |
3404 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) | |
3405 | goto xdr_error; | |
3406 | ||
3407 | status = verify_attr_len(xdr, savep, attrlen); | |
3408 | xdr_error: | |
3110ff80 | 3409 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3410 | return status; |
3411 | } | |
3412 | ||
3413 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) | |
3414 | { | |
8687b63a | 3415 | __be32 *savep; |
6c0195a4 | 3416 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3417 | int status; |
6c0195a4 | 3418 | |
1da177e4 LT |
3419 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3420 | goto xdr_error; | |
3421 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3422 | goto xdr_error; | |
3423 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3424 | goto xdr_error; | |
3425 | ||
3426 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) | |
3427 | goto xdr_error; | |
3428 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) | |
3429 | goto xdr_error; | |
3430 | ||
3431 | status = verify_attr_len(xdr, savep, attrlen); | |
3432 | xdr_error: | |
3110ff80 | 3433 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3434 | return status; |
3435 | } | |
3436 | ||
3437 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) | |
3438 | { | |
8687b63a | 3439 | __be32 *savep; |
1da177e4 LT |
3440 | uint32_t attrlen, |
3441 | bitmap[2] = {0}, | |
3442 | type; | |
bca79478 TM |
3443 | int status; |
3444 | umode_t fmode = 0; | |
99baf625 | 3445 | uint64_t fileid; |
1da177e4 | 3446 | |
f26c7a78 TM |
3447 | status = decode_op_hdr(xdr, OP_GETATTR); |
3448 | if (status < 0) | |
1da177e4 | 3449 | goto xdr_error; |
f26c7a78 TM |
3450 | |
3451 | status = decode_attr_bitmap(xdr, bitmap); | |
3452 | if (status < 0) | |
1da177e4 LT |
3453 | goto xdr_error; |
3454 | ||
f26c7a78 TM |
3455 | status = decode_attr_length(xdr, &attrlen, &savep); |
3456 | if (status < 0) | |
1da177e4 LT |
3457 | goto xdr_error; |
3458 | ||
3459 | ||
f26c7a78 TM |
3460 | status = decode_attr_type(xdr, bitmap, &type); |
3461 | if (status < 0) | |
1da177e4 | 3462 | goto xdr_error; |
409924e4 TM |
3463 | fattr->mode = 0; |
3464 | if (status != 0) { | |
3465 | fattr->mode |= nfs_type2fmt[type]; | |
3466 | fattr->valid |= status; | |
3467 | } | |
1da177e4 | 3468 | |
f26c7a78 TM |
3469 | status = decode_attr_change(xdr, bitmap, &fattr->change_attr); |
3470 | if (status < 0) | |
1da177e4 | 3471 | goto xdr_error; |
409924e4 | 3472 | fattr->valid |= status; |
f26c7a78 TM |
3473 | |
3474 | status = decode_attr_size(xdr, bitmap, &fattr->size); | |
3475 | if (status < 0) | |
1da177e4 | 3476 | goto xdr_error; |
409924e4 | 3477 | fattr->valid |= status; |
f26c7a78 TM |
3478 | |
3479 | status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); | |
3480 | if (status < 0) | |
1da177e4 | 3481 | goto xdr_error; |
409924e4 | 3482 | fattr->valid |= status; |
f26c7a78 TM |
3483 | |
3484 | status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); | |
3485 | if (status < 0) | |
1da177e4 | 3486 | goto xdr_error; |
409924e4 | 3487 | fattr->valid |= status; |
f26c7a78 TM |
3488 | |
3489 | status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, | |
7aaa0b3b | 3490 | struct nfs4_fs_locations, |
f26c7a78 TM |
3491 | fattr)); |
3492 | if (status < 0) | |
683b57b4 | 3493 | goto xdr_error; |
409924e4 | 3494 | fattr->valid |= status; |
f26c7a78 TM |
3495 | |
3496 | status = decode_attr_mode(xdr, bitmap, &fmode); | |
3497 | if (status < 0) | |
1da177e4 | 3498 | goto xdr_error; |
409924e4 TM |
3499 | if (status != 0) { |
3500 | fattr->mode |= fmode; | |
3501 | fattr->valid |= status; | |
3502 | } | |
f26c7a78 TM |
3503 | |
3504 | status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); | |
3505 | if (status < 0) | |
1da177e4 | 3506 | goto xdr_error; |
409924e4 | 3507 | fattr->valid |= status; |
f26c7a78 TM |
3508 | |
3509 | status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); | |
3510 | if (status < 0) | |
1da177e4 | 3511 | goto xdr_error; |
409924e4 | 3512 | fattr->valid |= status; |
f26c7a78 TM |
3513 | |
3514 | status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); | |
3515 | if (status < 0) | |
1da177e4 | 3516 | goto xdr_error; |
409924e4 | 3517 | fattr->valid |= status; |
f26c7a78 TM |
3518 | |
3519 | status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); | |
3520 | if (status < 0) | |
1da177e4 | 3521 | goto xdr_error; |
409924e4 | 3522 | fattr->valid |= status; |
f26c7a78 TM |
3523 | |
3524 | status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); | |
3525 | if (status < 0) | |
1da177e4 | 3526 | goto xdr_error; |
409924e4 | 3527 | fattr->valid |= status; |
f26c7a78 TM |
3528 | |
3529 | status = decode_attr_time_access(xdr, bitmap, &fattr->atime); | |
3530 | if (status < 0) | |
1da177e4 | 3531 | goto xdr_error; |
409924e4 | 3532 | fattr->valid |= status; |
f26c7a78 TM |
3533 | |
3534 | status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); | |
3535 | if (status < 0) | |
1da177e4 | 3536 | goto xdr_error; |
409924e4 | 3537 | fattr->valid |= status; |
f26c7a78 TM |
3538 | |
3539 | status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); | |
3540 | if (status < 0) | |
1da177e4 | 3541 | goto xdr_error; |
409924e4 | 3542 | fattr->valid |= status; |
f26c7a78 TM |
3543 | |
3544 | status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); | |
3545 | if (status < 0) | |
99baf625 | 3546 | goto xdr_error; |
409924e4 | 3547 | if (status != 0 && !(fattr->valid & status)) { |
99baf625 | 3548 | fattr->fileid = fileid; |
409924e4 TM |
3549 | fattr->valid |= status; |
3550 | } | |
f26c7a78 TM |
3551 | |
3552 | status = verify_attr_len(xdr, savep, attrlen); | |
1da177e4 | 3553 | xdr_error: |
3110ff80 | 3554 | dprintk("%s: xdr returned %d\n", __func__, -status); |
1da177e4 LT |
3555 | return status; |
3556 | } | |
3557 | ||
3558 | ||
3559 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) | |
3560 | { | |
8687b63a | 3561 | __be32 *savep; |
1da177e4 LT |
3562 | uint32_t attrlen, bitmap[2]; |
3563 | int status; | |
3564 | ||
3565 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3566 | goto xdr_error; | |
3567 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3568 | goto xdr_error; | |
3569 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3570 | goto xdr_error; | |
3571 | ||
3572 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ | |
3573 | ||
3574 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) | |
3575 | goto xdr_error; | |
3576 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) | |
3577 | goto xdr_error; | |
3578 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) | |
3579 | goto xdr_error; | |
3580 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; | |
3581 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) | |
3582 | goto xdr_error; | |
3583 | fsinfo->wtpref = fsinfo->wtmax; | |
3584 | ||
3585 | status = verify_attr_len(xdr, savep, attrlen); | |
3586 | xdr_error: | |
3110ff80 | 3587 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3588 | return status; |
3589 | } | |
3590 | ||
3591 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) | |
3592 | { | |
8687b63a | 3593 | __be32 *p; |
1da177e4 LT |
3594 | uint32_t len; |
3595 | int status; | |
3596 | ||
9936781d TM |
3597 | /* Zero handle first to allow comparisons */ |
3598 | memset(fh, 0, sizeof(*fh)); | |
3599 | ||
1da177e4 LT |
3600 | status = decode_op_hdr(xdr, OP_GETFH); |
3601 | if (status) | |
3602 | return status; | |
1da177e4 LT |
3603 | |
3604 | READ_BUF(4); | |
6f723f77 | 3605 | len = be32_to_cpup(p++); |
1da177e4 LT |
3606 | if (len > NFS4_FHSIZE) |
3607 | return -EIO; | |
3608 | fh->size = len; | |
3609 | READ_BUF(len); | |
3610 | COPYMEM(fh->data, len); | |
3611 | return 0; | |
3612 | } | |
3613 | ||
3614 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3615 | { | |
3616 | int status; | |
6c0195a4 | 3617 | |
1da177e4 LT |
3618 | status = decode_op_hdr(xdr, OP_LINK); |
3619 | if (status) | |
3620 | return status; | |
3621 | return decode_change_info(xdr, cinfo); | |
3622 | } | |
3623 | ||
3624 | /* | |
3625 | * We create the owner, so we know a proper owner.id length is 4. | |
3626 | */ | |
911d1aaf | 3627 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
1da177e4 | 3628 | { |
911d1aaf | 3629 | uint64_t offset, length, clientid; |
8687b63a | 3630 | __be32 *p; |
911d1aaf | 3631 | uint32_t namelen, type; |
1da177e4 LT |
3632 | |
3633 | READ_BUF(32); | |
3ceb4dbb BH |
3634 | p = xdr_decode_hyper(p, &offset); |
3635 | p = xdr_decode_hyper(p, &length); | |
6f723f77 | 3636 | type = be32_to_cpup(p++); |
911d1aaf TM |
3637 | if (fl != NULL) { |
3638 | fl->fl_start = (loff_t)offset; | |
3639 | fl->fl_end = fl->fl_start + (loff_t)length - 1; | |
3640 | if (length == ~(uint64_t)0) | |
3641 | fl->fl_end = OFFSET_MAX; | |
3642 | fl->fl_type = F_WRLCK; | |
3643 | if (type & 1) | |
3644 | fl->fl_type = F_RDLCK; | |
3645 | fl->fl_pid = 0; | |
3646 | } | |
3ceb4dbb | 3647 | p = xdr_decode_hyper(p, &clientid); |
6f723f77 | 3648 | namelen = be32_to_cpup(p++); |
1da177e4 | 3649 | READ_BUF(namelen); |
1da177e4 LT |
3650 | return -NFS4ERR_DENIED; |
3651 | } | |
3652 | ||
911d1aaf | 3653 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
1da177e4 | 3654 | { |
1da177e4 LT |
3655 | int status; |
3656 | ||
3657 | status = decode_op_hdr(xdr, OP_LOCK); | |
c1d51931 TM |
3658 | if (status == -EIO) |
3659 | goto out; | |
1da177e4 | 3660 | if (status == 0) { |
07d30434 BH |
3661 | status = decode_stateid(xdr, &res->stateid); |
3662 | if (unlikely(status)) | |
3663 | goto out; | |
1da177e4 | 3664 | } else if (status == -NFS4ERR_DENIED) |
c1d51931 TM |
3665 | status = decode_lock_denied(xdr, NULL); |
3666 | if (res->open_seqid != NULL) | |
3667 | nfs_increment_open_seqid(status, res->open_seqid); | |
3668 | nfs_increment_lock_seqid(status, res->lock_seqid); | |
3669 | out: | |
1da177e4 LT |
3670 | return status; |
3671 | } | |
3672 | ||
911d1aaf | 3673 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
1da177e4 LT |
3674 | { |
3675 | int status; | |
3676 | status = decode_op_hdr(xdr, OP_LOCKT); | |
3677 | if (status == -NFS4ERR_DENIED) | |
911d1aaf | 3678 | return decode_lock_denied(xdr, res->denied); |
1da177e4 LT |
3679 | return status; |
3680 | } | |
3681 | ||
911d1aaf | 3682 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
1da177e4 | 3683 | { |
1da177e4 LT |
3684 | int status; |
3685 | ||
3686 | status = decode_op_hdr(xdr, OP_LOCKU); | |
c1d51931 TM |
3687 | if (status != -EIO) |
3688 | nfs_increment_lock_seqid(status, res->seqid); | |
07d30434 BH |
3689 | if (status == 0) |
3690 | status = decode_stateid(xdr, &res->stateid); | |
1da177e4 LT |
3691 | return status; |
3692 | } | |
3693 | ||
3694 | static int decode_lookup(struct xdr_stream *xdr) | |
3695 | { | |
3696 | return decode_op_hdr(xdr, OP_LOOKUP); | |
3697 | } | |
3698 | ||
3699 | /* This is too sick! */ | |
3700 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) | |
3701 | { | |
05d564fe | 3702 | __be32 *p; |
1da177e4 LT |
3703 | uint32_t limit_type, nblocks, blocksize; |
3704 | ||
3705 | READ_BUF(12); | |
6f723f77 | 3706 | limit_type = be32_to_cpup(p++); |
1da177e4 | 3707 | switch (limit_type) { |
05d564fe | 3708 | case 1: |
3ceb4dbb | 3709 | p = xdr_decode_hyper(p, maxsize); |
05d564fe AA |
3710 | break; |
3711 | case 2: | |
6f723f77 BH |
3712 | nblocks = be32_to_cpup(p++); |
3713 | blocksize = be32_to_cpup(p++); | |
05d564fe | 3714 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; |
1da177e4 LT |
3715 | } |
3716 | return 0; | |
3717 | } | |
3718 | ||
3719 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) | |
3720 | { | |
05d564fe AA |
3721 | __be32 *p; |
3722 | uint32_t delegation_type; | |
07d30434 | 3723 | int status; |
1da177e4 LT |
3724 | |
3725 | READ_BUF(4); | |
6f723f77 | 3726 | delegation_type = be32_to_cpup(p++); |
1da177e4 LT |
3727 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { |
3728 | res->delegation_type = 0; | |
3729 | return 0; | |
3730 | } | |
07d30434 BH |
3731 | status = decode_stateid(xdr, &res->delegation); |
3732 | if (unlikely(status)) | |
3733 | return status; | |
3734 | READ_BUF(4); | |
6f723f77 | 3735 | res->do_recall = be32_to_cpup(p++); |
05d564fe | 3736 | |
1da177e4 | 3737 | switch (delegation_type) { |
05d564fe AA |
3738 | case NFS4_OPEN_DELEGATE_READ: |
3739 | res->delegation_type = FMODE_READ; | |
3740 | break; | |
3741 | case NFS4_OPEN_DELEGATE_WRITE: | |
3742 | res->delegation_type = FMODE_WRITE|FMODE_READ; | |
3743 | if (decode_space_limit(xdr, &res->maxsize) < 0) | |
1da177e4 LT |
3744 | return -EIO; |
3745 | } | |
7539bbab | 3746 | return decode_ace(xdr, NULL, res->server->nfs_client); |
1da177e4 LT |
3747 | } |
3748 | ||
3749 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) | |
3750 | { | |
05d564fe | 3751 | __be32 *p; |
aa53ed54 | 3752 | uint32_t savewords, bmlen, i; |
05d564fe | 3753 | int status; |
1da177e4 | 3754 | |
05d564fe | 3755 | status = decode_op_hdr(xdr, OP_OPEN); |
c1d51931 TM |
3756 | if (status != -EIO) |
3757 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
3758 | if (!status) |
3759 | status = decode_stateid(xdr, &res->stateid); | |
3760 | if (unlikely(status)) | |
05d564fe | 3761 | return status; |
1da177e4 | 3762 | |
05d564fe | 3763 | decode_change_info(xdr, &res->cinfo); |
1da177e4 | 3764 | |
05d564fe | 3765 | READ_BUF(8); |
6f723f77 BH |
3766 | res->rflags = be32_to_cpup(p++); |
3767 | bmlen = be32_to_cpup(p++); | |
05d564fe AA |
3768 | if (bmlen > 10) |
3769 | goto xdr_error; | |
1da177e4 | 3770 | |
05d564fe | 3771 | READ_BUF(bmlen << 2); |
aa53ed54 JL |
3772 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
3773 | for (i = 0; i < savewords; ++i) | |
6f723f77 | 3774 | res->attrset[i] = be32_to_cpup(p++); |
aa53ed54 JL |
3775 | for (; i < NFS4_BITMAP_SIZE; i++) |
3776 | res->attrset[i] = 0; | |
3777 | ||
1da177e4 LT |
3778 | return decode_delegation(xdr, res); |
3779 | xdr_error: | |
3110ff80 | 3780 | dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); |
1da177e4 LT |
3781 | return -EIO; |
3782 | } | |
3783 | ||
3784 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) | |
3785 | { | |
1da177e4 LT |
3786 | int status; |
3787 | ||
05d564fe | 3788 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); |
c1d51931 TM |
3789 | if (status != -EIO) |
3790 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
3791 | if (!status) |
3792 | status = decode_stateid(xdr, &res->stateid); | |
3793 | return status; | |
1da177e4 LT |
3794 | } |
3795 | ||
3796 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3797 | { | |
1da177e4 LT |
3798 | int status; |
3799 | ||
3800 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); | |
c1d51931 TM |
3801 | if (status != -EIO) |
3802 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
3803 | if (!status) |
3804 | status = decode_stateid(xdr, &res->stateid); | |
3805 | return status; | |
1da177e4 LT |
3806 | } |
3807 | ||
3808 | static int decode_putfh(struct xdr_stream *xdr) | |
3809 | { | |
3810 | return decode_op_hdr(xdr, OP_PUTFH); | |
3811 | } | |
3812 | ||
3813 | static int decode_putrootfh(struct xdr_stream *xdr) | |
3814 | { | |
3815 | return decode_op_hdr(xdr, OP_PUTROOTFH); | |
3816 | } | |
3817 | ||
3818 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) | |
3819 | { | |
3820 | struct kvec *iov = req->rq_rcv_buf.head; | |
8687b63a | 3821 | __be32 *p; |
1da177e4 LT |
3822 | uint32_t count, eof, recvd, hdrlen; |
3823 | int status; | |
3824 | ||
3825 | status = decode_op_hdr(xdr, OP_READ); | |
3826 | if (status) | |
3827 | return status; | |
3828 | READ_BUF(8); | |
6f723f77 BH |
3829 | eof = be32_to_cpup(p++); |
3830 | count = be32_to_cpup(p++); | |
1da177e4 LT |
3831 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; |
3832 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3833 | if (count > recvd) { | |
fe82a183 | 3834 | dprintk("NFS: server cheating in read reply: " |
1da177e4 LT |
3835 | "count %u > recvd %u\n", count, recvd); |
3836 | count = recvd; | |
3837 | eof = 0; | |
3838 | } | |
3839 | xdr_read_pages(xdr, count); | |
3840 | res->eof = eof; | |
3841 | res->count = count; | |
3842 | return 0; | |
3843 | } | |
3844 | ||
3845 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) | |
3846 | { | |
3847 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3848 | struct page *page = *rcvbuf->pages; | |
3849 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3850 | size_t hdrlen; |
3851 | u32 recvd, pglen = rcvbuf->page_len; | |
8687b63a | 3852 | __be32 *end, *entry, *p, *kaddr; |
7bda2cdf | 3853 | unsigned int nr = 0; |
bcecff77 | 3854 | int status; |
1da177e4 LT |
3855 | |
3856 | status = decode_op_hdr(xdr, OP_READDIR); | |
db942bbd BH |
3857 | if (!status) |
3858 | status = decode_verifier(xdr, readdir->verifier.data); | |
3859 | if (unlikely(status)) | |
1da177e4 | 3860 | return status; |
44109241 FI |
3861 | dprintk("%s: verifier = %08x:%08x\n", |
3862 | __func__, | |
eadf4598 TM |
3863 | ((u32 *)readdir->verifier.data)[0], |
3864 | ((u32 *)readdir->verifier.data)[1]); | |
3865 | ||
1da177e4 | 3866 | |
db942bbd | 3867 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; |
1da177e4 LT |
3868 | recvd = rcvbuf->len - hdrlen; |
3869 | if (pglen > recvd) | |
3870 | pglen = recvd; | |
3871 | xdr_read_pages(xdr, pglen); | |
3872 | ||
3873 | BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); | |
8687b63a | 3874 | kaddr = p = kmap_atomic(page, KM_USER0); |
e8896495 | 3875 | end = p + ((pglen + readdir->pgbase) >> 2); |
1da177e4 | 3876 | entry = p; |
7bda2cdf JL |
3877 | |
3878 | /* Make sure the packet actually has a value_follows and EOF entry */ | |
3879 | if ((entry + 1) > end) | |
3880 | goto short_pkt; | |
3881 | ||
3882 | for (; *p++; nr++) { | |
bcecff77 | 3883 | u32 len, attrlen, xlen; |
e8896495 | 3884 | if (end - p < 3) |
1da177e4 | 3885 | goto short_pkt; |
eadf4598 | 3886 | dprintk("cookie = %Lu, ", *((unsigned long long *)p)); |
1da177e4 LT |
3887 | p += 2; /* cookie */ |
3888 | len = ntohl(*p++); /* filename length */ | |
3889 | if (len > NFS4_MAXNAMLEN) { | |
fe82a183 CL |
3890 | dprintk("NFS: giant filename in readdir (len 0x%x)\n", |
3891 | len); | |
1da177e4 LT |
3892 | goto err_unmap; |
3893 | } | |
e8896495 DH |
3894 | xlen = XDR_QUADLEN(len); |
3895 | if (end - p < xlen + 1) | |
1da177e4 | 3896 | goto short_pkt; |
e8896495 DH |
3897 | dprintk("filename = %*s\n", len, (char *)p); |
3898 | p += xlen; | |
1da177e4 | 3899 | len = ntohl(*p++); /* bitmap length */ |
e8896495 | 3900 | if (end - p < len + 1) |
1da177e4 | 3901 | goto short_pkt; |
e8896495 | 3902 | p += len; |
1da177e4 | 3903 | attrlen = XDR_QUADLEN(ntohl(*p++)); |
e8896495 | 3904 | if (end - p < attrlen + 2) |
1da177e4 | 3905 | goto short_pkt; |
e8896495 | 3906 | p += attrlen; /* attributes */ |
1da177e4 LT |
3907 | entry = p; |
3908 | } | |
7bda2cdf JL |
3909 | /* |
3910 | * Apparently some server sends responses that are a valid size, but | |
3911 | * contain no entries, and have value_follows==0 and EOF==0. For | |
3912 | * those, just set the EOF marker. | |
3913 | */ | |
3914 | if (!nr && entry[1] == 0) { | |
3915 | dprintk("NFS: readdir reply truncated!\n"); | |
3916 | entry[1] = 1; | |
3917 | } | |
6c0195a4 | 3918 | out: |
1da177e4 LT |
3919 | kunmap_atomic(kaddr, KM_USER0); |
3920 | return 0; | |
3921 | short_pkt: | |
7bda2cdf JL |
3922 | /* |
3923 | * When we get a short packet there are 2 possibilities. We can | |
3924 | * return an error, or fix up the response to look like a valid | |
3925 | * response and return what we have so far. If there are no | |
3926 | * entries and the packet was short, then return -EIO. If there | |
3927 | * are valid entries in the response, return them and pretend that | |
3928 | * the call was successful, but incomplete. The caller can retry the | |
3929 | * readdir starting at the last cookie. | |
3930 | */ | |
3110ff80 | 3931 | dprintk("%s: short packet at entry %d\n", __func__, nr); |
1da177e4 | 3932 | entry[0] = entry[1] = 0; |
7bda2cdf JL |
3933 | if (nr) |
3934 | goto out; | |
1da177e4 LT |
3935 | err_unmap: |
3936 | kunmap_atomic(kaddr, KM_USER0); | |
3937 | return -errno_NFSERR_IO; | |
3938 | } | |
3939 | ||
3940 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) | |
3941 | { | |
3942 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3943 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3944 | size_t hdrlen; |
3945 | u32 len, recvd; | |
8687b63a | 3946 | __be32 *p; |
1da177e4 LT |
3947 | char *kaddr; |
3948 | int status; | |
3949 | ||
3950 | status = decode_op_hdr(xdr, OP_READLINK); | |
3951 | if (status) | |
3952 | return status; | |
3953 | ||
3954 | /* Convert length of symlink */ | |
3955 | READ_BUF(4); | |
6f723f77 | 3956 | len = be32_to_cpup(p++); |
1da177e4 | 3957 | if (len >= rcvbuf->page_len || len <= 0) { |
fe82a183 | 3958 | dprintk("nfs: server returned giant symlink!\n"); |
1da177e4 LT |
3959 | return -ENAMETOOLONG; |
3960 | } | |
3961 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; | |
3962 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3963 | if (recvd < len) { | |
fe82a183 | 3964 | dprintk("NFS: server cheating in readlink reply: " |
1da177e4 LT |
3965 | "count %u > recvd %u\n", len, recvd); |
3966 | return -EIO; | |
3967 | } | |
3968 | xdr_read_pages(xdr, len); | |
3969 | /* | |
3970 | * The XDR encode routine has set things up so that | |
3971 | * the link text will be copied directly into the | |
3972 | * buffer. We just have to do overflow-checking, | |
3973 | * and and null-terminate the text (the VFS expects | |
3974 | * null-termination). | |
3975 | */ | |
3976 | kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); | |
3977 | kaddr[len+rcvbuf->page_base] = '\0'; | |
3978 | kunmap_atomic(kaddr, KM_USER0); | |
3979 | return 0; | |
3980 | } | |
3981 | ||
3982 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3983 | { | |
3984 | int status; | |
3985 | ||
3986 | status = decode_op_hdr(xdr, OP_REMOVE); | |
3987 | if (status) | |
3988 | goto out; | |
3989 | status = decode_change_info(xdr, cinfo); | |
3990 | out: | |
3991 | return status; | |
3992 | } | |
3993 | ||
3994 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, | |
3995 | struct nfs4_change_info *new_cinfo) | |
3996 | { | |
3997 | int status; | |
3998 | ||
3999 | status = decode_op_hdr(xdr, OP_RENAME); | |
4000 | if (status) | |
4001 | goto out; | |
4002 | if ((status = decode_change_info(xdr, old_cinfo))) | |
4003 | goto out; | |
4004 | status = decode_change_info(xdr, new_cinfo); | |
4005 | out: | |
4006 | return status; | |
4007 | } | |
4008 | ||
4009 | static int decode_renew(struct xdr_stream *xdr) | |
4010 | { | |
4011 | return decode_op_hdr(xdr, OP_RENEW); | |
4012 | } | |
4013 | ||
56ae19f3 TM |
4014 | static int |
4015 | decode_restorefh(struct xdr_stream *xdr) | |
4016 | { | |
4017 | return decode_op_hdr(xdr, OP_RESTOREFH); | |
4018 | } | |
4019 | ||
029d105e BF |
4020 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
4021 | size_t *acl_len) | |
4022 | { | |
8687b63a | 4023 | __be32 *savep; |
029d105e BF |
4024 | uint32_t attrlen, |
4025 | bitmap[2] = {0}; | |
4026 | struct kvec *iov = req->rq_rcv_buf.head; | |
4027 | int status; | |
4028 | ||
4029 | *acl_len = 0; | |
4030 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
4031 | goto out; | |
4032 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
4033 | goto out; | |
4034 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
4035 | goto out; | |
4036 | ||
4037 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) | |
4038 | return -EIO; | |
4039 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { | |
bcecff77 CL |
4040 | size_t hdrlen; |
4041 | u32 recvd; | |
029d105e BF |
4042 | |
4043 | /* We ignore &savep and don't do consistency checks on | |
4044 | * the attr length. Let userspace figure it out.... */ | |
4045 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; | |
4046 | recvd = req->rq_rcv_buf.len - hdrlen; | |
4047 | if (attrlen > recvd) { | |
fe82a183 | 4048 | dprintk("NFS: server cheating in getattr" |
029d105e BF |
4049 | " acl reply: attrlen %u > recvd %u\n", |
4050 | attrlen, recvd); | |
4051 | return -EINVAL; | |
4052 | } | |
c04871e6 | 4053 | xdr_read_pages(xdr, attrlen); |
029d105e | 4054 | *acl_len = attrlen; |
8c233cf9 BF |
4055 | } else |
4056 | status = -EOPNOTSUPP; | |
029d105e BF |
4057 | |
4058 | out: | |
4059 | return status; | |
4060 | } | |
4061 | ||
1da177e4 LT |
4062 | static int |
4063 | decode_savefh(struct xdr_stream *xdr) | |
4064 | { | |
4065 | return decode_op_hdr(xdr, OP_SAVEFH); | |
4066 | } | |
4067 | ||
9e9ecc03 | 4068 | static int decode_setattr(struct xdr_stream *xdr) |
1da177e4 | 4069 | { |
8687b63a | 4070 | __be32 *p; |
1da177e4 LT |
4071 | uint32_t bmlen; |
4072 | int status; | |
4073 | ||
1da177e4 LT |
4074 | status = decode_op_hdr(xdr, OP_SETATTR); |
4075 | if (status) | |
4076 | return status; | |
4077 | READ_BUF(4); | |
6f723f77 | 4078 | bmlen = be32_to_cpup(p++); |
1da177e4 LT |
4079 | READ_BUF(bmlen << 2); |
4080 | return 0; | |
4081 | } | |
4082 | ||
adfa6f98 | 4083 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) |
1da177e4 | 4084 | { |
8687b63a | 4085 | __be32 *p; |
1da177e4 LT |
4086 | uint32_t opnum; |
4087 | int32_t nfserr; | |
4088 | ||
4089 | READ_BUF(8); | |
6f723f77 | 4090 | opnum = be32_to_cpup(p++); |
1da177e4 | 4091 | if (opnum != OP_SETCLIENTID) { |
fe82a183 | 4092 | dprintk("nfs: decode_setclientid: Server returned operation" |
6c0195a4 | 4093 | " %d\n", opnum); |
1da177e4 LT |
4094 | return -EIO; |
4095 | } | |
6f723f77 | 4096 | nfserr = be32_to_cpup(p++); |
1da177e4 | 4097 | if (nfserr == NFS_OK) { |
8ae20abd | 4098 | READ_BUF(8 + NFS4_VERIFIER_SIZE); |
3ceb4dbb | 4099 | p = xdr_decode_hyper(p, &clp->cl_clientid); |
8ae20abd | 4100 | COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
4101 | } else if (nfserr == NFSERR_CLID_INUSE) { |
4102 | uint32_t len; | |
4103 | ||
4104 | /* skip netid string */ | |
4105 | READ_BUF(4); | |
6f723f77 | 4106 | len = be32_to_cpup(p++); |
1da177e4 LT |
4107 | READ_BUF(len); |
4108 | ||
4109 | /* skip uaddr string */ | |
4110 | READ_BUF(4); | |
6f723f77 | 4111 | len = be32_to_cpup(p++); |
1da177e4 LT |
4112 | READ_BUF(len); |
4113 | return -NFSERR_CLID_INUSE; | |
4114 | } else | |
856dff3d | 4115 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
4116 | |
4117 | return 0; | |
4118 | } | |
4119 | ||
4120 | static int decode_setclientid_confirm(struct xdr_stream *xdr) | |
4121 | { | |
4122 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); | |
4123 | } | |
4124 | ||
4125 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) | |
4126 | { | |
8687b63a | 4127 | __be32 *p; |
1da177e4 LT |
4128 | int status; |
4129 | ||
4130 | status = decode_op_hdr(xdr, OP_WRITE); | |
4131 | if (status) | |
4132 | return status; | |
4133 | ||
4134 | READ_BUF(16); | |
6f723f77 BH |
4135 | res->count = be32_to_cpup(p++); |
4136 | res->verf->committed = be32_to_cpup(p++); | |
1da177e4 LT |
4137 | COPYMEM(res->verf->verifier, 8); |
4138 | return 0; | |
4139 | } | |
4140 | ||
4141 | static int decode_delegreturn(struct xdr_stream *xdr) | |
4142 | { | |
4143 | return decode_op_hdr(xdr, OP_DELEGRETURN); | |
4144 | } | |
4145 | ||
99fe60d0 BH |
4146 | #if defined(CONFIG_NFS_V4_1) |
4147 | static int decode_exchange_id(struct xdr_stream *xdr, | |
4148 | struct nfs41_exchange_id_res *res) | |
4149 | { | |
4150 | __be32 *p; | |
4151 | uint32_t dummy; | |
4152 | int status; | |
4153 | struct nfs_client *clp = res->client; | |
4154 | ||
4155 | status = decode_op_hdr(xdr, OP_EXCHANGE_ID); | |
4156 | if (status) | |
4157 | return status; | |
4158 | ||
4159 | READ_BUF(8); | |
3ceb4dbb | 4160 | p = xdr_decode_hyper(p, &clp->cl_ex_clid); |
99fe60d0 | 4161 | READ_BUF(12); |
6f723f77 BH |
4162 | clp->cl_seqid = be32_to_cpup(p++); |
4163 | clp->cl_exchange_flags = be32_to_cpup(p++); | |
99fe60d0 BH |
4164 | |
4165 | /* We ask for SP4_NONE */ | |
6f723f77 | 4166 | dummy = be32_to_cpup(p++); |
99fe60d0 BH |
4167 | if (dummy != SP4_NONE) |
4168 | return -EIO; | |
4169 | ||
4170 | /* Throw away minor_id */ | |
4171 | READ_BUF(8); | |
4172 | ||
4173 | /* Throw away Major id */ | |
4174 | READ_BUF(4); | |
6f723f77 | 4175 | dummy = be32_to_cpup(p++); |
99fe60d0 BH |
4176 | READ_BUF(dummy); |
4177 | ||
4178 | /* Throw away server_scope */ | |
4179 | READ_BUF(4); | |
6f723f77 | 4180 | dummy = be32_to_cpup(p++); |
99fe60d0 BH |
4181 | READ_BUF(dummy); |
4182 | ||
4183 | /* Throw away Implementation id array */ | |
4184 | READ_BUF(4); | |
6f723f77 | 4185 | dummy = be32_to_cpup(p++); |
99fe60d0 BH |
4186 | READ_BUF(dummy); |
4187 | ||
4188 | return 0; | |
4189 | } | |
fc931582 AA |
4190 | |
4191 | static int decode_chan_attrs(struct xdr_stream *xdr, | |
4192 | struct nfs4_channel_attrs *attrs) | |
4193 | { | |
4194 | __be32 *p; | |
4195 | u32 nr_attrs; | |
4196 | ||
4197 | READ_BUF(28); | |
6f723f77 BH |
4198 | attrs->headerpadsz = be32_to_cpup(p++); |
4199 | attrs->max_rqst_sz = be32_to_cpup(p++); | |
4200 | attrs->max_resp_sz = be32_to_cpup(p++); | |
4201 | attrs->max_resp_sz_cached = be32_to_cpup(p++); | |
4202 | attrs->max_ops = be32_to_cpup(p++); | |
4203 | attrs->max_reqs = be32_to_cpup(p++); | |
4204 | nr_attrs = be32_to_cpup(p++); | |
fc931582 AA |
4205 | if (unlikely(nr_attrs > 1)) { |
4206 | printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", | |
4207 | __func__, nr_attrs); | |
4208 | return -EINVAL; | |
4209 | } | |
4210 | if (nr_attrs == 1) | |
4211 | READ_BUF(4); /* skip rdma_attrs */ | |
4212 | return 0; | |
4213 | } | |
4214 | ||
4215 | static int decode_create_session(struct xdr_stream *xdr, | |
4216 | struct nfs41_create_session_res *res) | |
4217 | { | |
4218 | __be32 *p; | |
4219 | int status; | |
4220 | struct nfs_client *clp = res->client; | |
4221 | struct nfs4_session *session = clp->cl_session; | |
4222 | ||
4223 | status = decode_op_hdr(xdr, OP_CREATE_SESSION); | |
4224 | ||
4225 | if (status) | |
4226 | return status; | |
4227 | ||
4228 | /* sessionid */ | |
4229 | READ_BUF(NFS4_MAX_SESSIONID_LEN); | |
4230 | COPYMEM(&session->sess_id, NFS4_MAX_SESSIONID_LEN); | |
4231 | ||
4232 | /* seqid, flags */ | |
4233 | READ_BUF(8); | |
6f723f77 BH |
4234 | clp->cl_seqid = be32_to_cpup(p++); |
4235 | session->flags = be32_to_cpup(p++); | |
fc931582 AA |
4236 | |
4237 | /* Channel attributes */ | |
4238 | status = decode_chan_attrs(xdr, &session->fc_attrs); | |
4239 | if (!status) | |
4240 | status = decode_chan_attrs(xdr, &session->bc_attrs); | |
4241 | return status; | |
4242 | } | |
0f3e66c6 AA |
4243 | |
4244 | static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) | |
4245 | { | |
4246 | return decode_op_hdr(xdr, OP_DESTROY_SESSION); | |
4247 | } | |
99fe60d0 BH |
4248 | #endif /* CONFIG_NFS_V4_1 */ |
4249 | ||
9b7b9fcc AA |
4250 | static int decode_sequence(struct xdr_stream *xdr, |
4251 | struct nfs4_sequence_res *res, | |
4252 | struct rpc_rqst *rqstp) | |
4253 | { | |
4254 | #if defined(CONFIG_NFS_V4_1) | |
fc01cea9 AA |
4255 | struct nfs4_slot *slot; |
4256 | struct nfs4_sessionid id; | |
4257 | u32 dummy; | |
4258 | int status; | |
4259 | __be32 *p; | |
4260 | ||
9b7b9fcc AA |
4261 | if (!res->sr_session) |
4262 | return 0; | |
4263 | ||
fc01cea9 AA |
4264 | status = decode_op_hdr(xdr, OP_SEQUENCE); |
4265 | if (status) | |
4266 | goto out_err; | |
9b7b9fcc | 4267 | |
fc01cea9 AA |
4268 | /* |
4269 | * If the server returns different values for sessionID, slotID or | |
4270 | * sequence number, the server is looney tunes. | |
4271 | */ | |
4272 | status = -ESERVERFAULT; | |
4273 | ||
4274 | slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; | |
4275 | READ_BUF(NFS4_MAX_SESSIONID_LEN + 20); | |
4276 | COPYMEM(id.data, NFS4_MAX_SESSIONID_LEN); | |
4277 | if (memcmp(id.data, res->sr_session->sess_id.data, | |
4278 | NFS4_MAX_SESSIONID_LEN)) { | |
4279 | dprintk("%s Invalid session id\n", __func__); | |
4280 | goto out_err; | |
4281 | } | |
4282 | /* seqid */ | |
6f723f77 | 4283 | dummy = be32_to_cpup(p++); |
fc01cea9 AA |
4284 | if (dummy != slot->seq_nr) { |
4285 | dprintk("%s Invalid sequence number\n", __func__); | |
4286 | goto out_err; | |
4287 | } | |
4288 | /* slot id */ | |
6f723f77 | 4289 | dummy = be32_to_cpup(p++); |
fc01cea9 AA |
4290 | if (dummy != res->sr_slotid) { |
4291 | dprintk("%s Invalid slot id\n", __func__); | |
4292 | goto out_err; | |
4293 | } | |
4294 | /* highest slot id - currently not processed */ | |
6f723f77 | 4295 | dummy = be32_to_cpup(p++); |
fc01cea9 | 4296 | /* target highest slot id - currently not processed */ |
6f723f77 | 4297 | dummy = be32_to_cpup(p++); |
fc01cea9 | 4298 | /* result flags - currently not processed */ |
6f723f77 | 4299 | dummy = be32_to_cpup(p++); |
fc01cea9 AA |
4300 | status = 0; |
4301 | out_err: | |
4302 | res->sr_status = status; | |
4303 | return status; | |
4304 | #else /* CONFIG_NFS_V4_1 */ | |
9b7b9fcc | 4305 | return 0; |
fc01cea9 | 4306 | #endif /* CONFIG_NFS_V4_1 */ |
9b7b9fcc AA |
4307 | } |
4308 | ||
49c2559e BH |
4309 | /* |
4310 | * END OF "GENERIC" DECODE ROUTINES. | |
4311 | */ | |
4312 | ||
1da177e4 LT |
4313 | /* |
4314 | * Decode OPEN_DOWNGRADE response | |
4315 | */ | |
8687b63a | 4316 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4317 | { |
05d564fe AA |
4318 | struct xdr_stream xdr; |
4319 | struct compound_hdr hdr; | |
4320 | int status; | |
4321 | ||
4322 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4323 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4324 | if (status) |
4325 | goto out; | |
4326 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4327 | if (status) |
4328 | goto out; | |
4329 | status = decode_putfh(&xdr); | |
4330 | if (status) | |
4331 | goto out; | |
4332 | status = decode_open_downgrade(&xdr, res); | |
516a6af6 TM |
4333 | if (status != 0) |
4334 | goto out; | |
4335 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 4336 | out: |
05d564fe | 4337 | return status; |
1da177e4 LT |
4338 | } |
4339 | ||
1da177e4 LT |
4340 | /* |
4341 | * Decode ACCESS response | |
4342 | */ | |
8687b63a | 4343 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) |
1da177e4 LT |
4344 | { |
4345 | struct xdr_stream xdr; | |
4346 | struct compound_hdr hdr; | |
4347 | int status; | |
6c0195a4 | 4348 | |
1da177e4 | 4349 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4350 | status = decode_compound_hdr(&xdr, &hdr); |
4351 | if (status) | |
4352 | goto out; | |
4353 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4354 | if (status) | |
1da177e4 | 4355 | goto out; |
76b32999 TM |
4356 | status = decode_putfh(&xdr); |
4357 | if (status != 0) | |
4358 | goto out; | |
4359 | status = decode_access(&xdr, res); | |
4360 | if (status != 0) | |
4361 | goto out; | |
4362 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4363 | out: |
4364 | return status; | |
4365 | } | |
4366 | ||
4367 | /* | |
4368 | * Decode LOOKUP response | |
4369 | */ | |
8687b63a | 4370 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
4371 | { |
4372 | struct xdr_stream xdr; | |
4373 | struct compound_hdr hdr; | |
4374 | int status; | |
6c0195a4 | 4375 | |
1da177e4 | 4376 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4377 | status = decode_compound_hdr(&xdr, &hdr); |
4378 | if (status) | |
4379 | goto out; | |
4380 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4381 | if (status) | |
1da177e4 LT |
4382 | goto out; |
4383 | if ((status = decode_putfh(&xdr)) != 0) | |
4384 | goto out; | |
4385 | if ((status = decode_lookup(&xdr)) != 0) | |
4386 | goto out; | |
4387 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
4388 | goto out; | |
4389 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4390 | out: | |
4391 | return status; | |
4392 | } | |
4393 | ||
4394 | /* | |
4395 | * Decode LOOKUP_ROOT response | |
4396 | */ | |
8687b63a | 4397 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
4398 | { |
4399 | struct xdr_stream xdr; | |
4400 | struct compound_hdr hdr; | |
4401 | int status; | |
6c0195a4 | 4402 | |
1da177e4 | 4403 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4404 | status = decode_compound_hdr(&xdr, &hdr); |
4405 | if (status) | |
4406 | goto out; | |
4407 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4408 | if (status) | |
1da177e4 LT |
4409 | goto out; |
4410 | if ((status = decode_putrootfh(&xdr)) != 0) | |
4411 | goto out; | |
4412 | if ((status = decode_getfh(&xdr, res->fh)) == 0) | |
4413 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4414 | out: | |
4415 | return status; | |
4416 | } | |
4417 | ||
4418 | /* | |
4419 | * Decode REMOVE response | |
4420 | */ | |
4fdc17b2 | 4421 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) |
1da177e4 LT |
4422 | { |
4423 | struct xdr_stream xdr; | |
4424 | struct compound_hdr hdr; | |
4425 | int status; | |
6c0195a4 | 4426 | |
1da177e4 | 4427 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4428 | status = decode_compound_hdr(&xdr, &hdr); |
4429 | if (status) | |
4430 | goto out; | |
4431 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4432 | if (status) | |
1da177e4 | 4433 | goto out; |
16e42959 TM |
4434 | if ((status = decode_putfh(&xdr)) != 0) |
4435 | goto out; | |
4436 | if ((status = decode_remove(&xdr, &res->cinfo)) != 0) | |
4437 | goto out; | |
4fdc17b2 | 4438 | decode_getfattr(&xdr, &res->dir_attr, res->server); |
1da177e4 LT |
4439 | out: |
4440 | return status; | |
4441 | } | |
4442 | ||
4443 | /* | |
4444 | * Decode RENAME response | |
4445 | */ | |
8687b63a | 4446 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) |
1da177e4 LT |
4447 | { |
4448 | struct xdr_stream xdr; | |
4449 | struct compound_hdr hdr; | |
4450 | int status; | |
6c0195a4 | 4451 | |
1da177e4 | 4452 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4453 | status = decode_compound_hdr(&xdr, &hdr); |
4454 | if (status) | |
4455 | goto out; | |
4456 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4457 | if (status) | |
1da177e4 LT |
4458 | goto out; |
4459 | if ((status = decode_putfh(&xdr)) != 0) | |
4460 | goto out; | |
4461 | if ((status = decode_savefh(&xdr)) != 0) | |
4462 | goto out; | |
4463 | if ((status = decode_putfh(&xdr)) != 0) | |
4464 | goto out; | |
6caf2c82 TM |
4465 | if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) |
4466 | goto out; | |
4467 | /* Current FH is target directory */ | |
4468 | if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) | |
4469 | goto out; | |
4470 | if ((status = decode_restorefh(&xdr)) != 0) | |
4471 | goto out; | |
4472 | decode_getfattr(&xdr, res->old_fattr, res->server); | |
1da177e4 LT |
4473 | out: |
4474 | return status; | |
4475 | } | |
4476 | ||
4477 | /* | |
4478 | * Decode LINK response | |
4479 | */ | |
8687b63a | 4480 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) |
1da177e4 LT |
4481 | { |
4482 | struct xdr_stream xdr; | |
4483 | struct compound_hdr hdr; | |
4484 | int status; | |
6c0195a4 | 4485 | |
1da177e4 | 4486 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4487 | status = decode_compound_hdr(&xdr, &hdr); |
4488 | if (status) | |
4489 | goto out; | |
4490 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4491 | if (status) | |
1da177e4 LT |
4492 | goto out; |
4493 | if ((status = decode_putfh(&xdr)) != 0) | |
4494 | goto out; | |
4495 | if ((status = decode_savefh(&xdr)) != 0) | |
4496 | goto out; | |
4497 | if ((status = decode_putfh(&xdr)) != 0) | |
4498 | goto out; | |
91ba2eee TM |
4499 | if ((status = decode_link(&xdr, &res->cinfo)) != 0) |
4500 | goto out; | |
4501 | /* | |
4502 | * Note order: OP_LINK leaves the directory as the current | |
4503 | * filehandle. | |
4504 | */ | |
4505 | if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) | |
4506 | goto out; | |
4507 | if ((status = decode_restorefh(&xdr)) != 0) | |
4508 | goto out; | |
4509 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4510 | out: |
4511 | return status; | |
4512 | } | |
4513 | ||
4514 | /* | |
4515 | * Decode CREATE response | |
4516 | */ | |
8687b63a | 4517 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4518 | { |
4519 | struct xdr_stream xdr; | |
4520 | struct compound_hdr hdr; | |
4521 | int status; | |
6c0195a4 | 4522 | |
1da177e4 | 4523 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4524 | status = decode_compound_hdr(&xdr, &hdr); |
4525 | if (status) | |
4526 | goto out; | |
4527 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4528 | if (status) | |
1da177e4 LT |
4529 | goto out; |
4530 | if ((status = decode_putfh(&xdr)) != 0) | |
4531 | goto out; | |
56ae19f3 TM |
4532 | if ((status = decode_savefh(&xdr)) != 0) |
4533 | goto out; | |
1da177e4 LT |
4534 | if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) |
4535 | goto out; | |
4536 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
4537 | goto out; | |
56ae19f3 TM |
4538 | if (decode_getfattr(&xdr, res->fattr, res->server) != 0) |
4539 | goto out; | |
4540 | if ((status = decode_restorefh(&xdr)) != 0) | |
4541 | goto out; | |
4542 | decode_getfattr(&xdr, res->dir_fattr, res->server); | |
1da177e4 LT |
4543 | out: |
4544 | return status; | |
4545 | } | |
4546 | ||
4547 | /* | |
4548 | * Decode SYMLINK response | |
4549 | */ | |
8687b63a | 4550 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4551 | { |
4552 | return nfs4_xdr_dec_create(rqstp, p, res); | |
4553 | } | |
4554 | ||
4555 | /* | |
4556 | * Decode GETATTR response | |
4557 | */ | |
8687b63a | 4558 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) |
1da177e4 LT |
4559 | { |
4560 | struct xdr_stream xdr; | |
4561 | struct compound_hdr hdr; | |
4562 | int status; | |
6c0195a4 | 4563 | |
1da177e4 LT |
4564 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
4565 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4566 | if (status) |
4567 | goto out; | |
4568 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4569 | if (status) |
4570 | goto out; | |
4571 | status = decode_putfh(&xdr); | |
4572 | if (status) | |
4573 | goto out; | |
4574 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4575 | out: | |
4576 | return status; | |
1da177e4 LT |
4577 | } |
4578 | ||
23ec6965 BF |
4579 | /* |
4580 | * Encode an SETACL request | |
4581 | */ | |
4582 | static int | |
8687b63a | 4583 | nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) |
23ec6965 | 4584 | { |
05d564fe AA |
4585 | struct xdr_stream xdr; |
4586 | struct compound_hdr hdr = { | |
66cc0429 | 4587 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe AA |
4588 | }; |
4589 | int status; | |
4590 | ||
4591 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 4592 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 4593 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 | 4594 | encode_putfh(&xdr, args->fh, &hdr); |
d017931c | 4595 | status = encode_setacl(&xdr, args, &hdr); |
d017931c | 4596 | encode_nops(&hdr); |
05d564fe | 4597 | return status; |
23ec6965 | 4598 | } |
05d564fe | 4599 | |
23ec6965 BF |
4600 | /* |
4601 | * Decode SETACL response | |
4602 | */ | |
4603 | static int | |
73c403a9 BH |
4604 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, |
4605 | struct nfs_setaclres *res) | |
23ec6965 BF |
4606 | { |
4607 | struct xdr_stream xdr; | |
4608 | struct compound_hdr hdr; | |
4609 | int status; | |
4610 | ||
4611 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4612 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4613 | if (status) |
4614 | goto out; | |
4615 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
23ec6965 BF |
4616 | if (status) |
4617 | goto out; | |
4618 | status = decode_putfh(&xdr); | |
4619 | if (status) | |
4620 | goto out; | |
9e9ecc03 | 4621 | status = decode_setattr(&xdr); |
23ec6965 BF |
4622 | out: |
4623 | return status; | |
4624 | } | |
1da177e4 | 4625 | |
029d105e BF |
4626 | /* |
4627 | * Decode GETACL response | |
4628 | */ | |
4629 | static int | |
663c79b3 BH |
4630 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, |
4631 | struct nfs_getaclres *res) | |
029d105e BF |
4632 | { |
4633 | struct xdr_stream xdr; | |
4634 | struct compound_hdr hdr; | |
4635 | int status; | |
4636 | ||
4637 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4638 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4639 | if (status) |
4640 | goto out; | |
4641 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
029d105e BF |
4642 | if (status) |
4643 | goto out; | |
4644 | status = decode_putfh(&xdr); | |
4645 | if (status) | |
4646 | goto out; | |
663c79b3 | 4647 | status = decode_getacl(&xdr, rqstp, &res->acl_len); |
029d105e BF |
4648 | |
4649 | out: | |
4650 | return status; | |
4651 | } | |
4652 | ||
1da177e4 LT |
4653 | /* |
4654 | * Decode CLOSE response | |
4655 | */ | |
8687b63a | 4656 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4657 | { |
05d564fe AA |
4658 | struct xdr_stream xdr; |
4659 | struct compound_hdr hdr; | |
4660 | int status; | |
4661 | ||
4662 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4663 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4664 | if (status) |
4665 | goto out; | |
4666 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4667 | if (status) |
4668 | goto out; | |
4669 | status = decode_putfh(&xdr); | |
4670 | if (status) | |
4671 | goto out; | |
4672 | status = decode_close(&xdr, res); | |
516a6af6 TM |
4673 | if (status != 0) |
4674 | goto out; | |
4675 | /* | |
4676 | * Note: Server may do delete on close for this file | |
4677 | * in which case the getattr call will fail with | |
4678 | * an ESTALE error. Shouldn't be a problem, | |
4679 | * though, since fattr->valid will remain unset. | |
4680 | */ | |
4681 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 4682 | out: |
05d564fe | 4683 | return status; |
1da177e4 LT |
4684 | } |
4685 | ||
4686 | /* | |
4687 | * Decode OPEN response | |
4688 | */ | |
8687b63a | 4689 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4690 | { |
05d564fe AA |
4691 | struct xdr_stream xdr; |
4692 | struct compound_hdr hdr; | |
4693 | int status; | |
4694 | ||
4695 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4696 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4697 | if (status) |
4698 | goto out; | |
4699 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4700 | if (status) |
4701 | goto out; | |
4702 | status = decode_putfh(&xdr); | |
4703 | if (status) | |
4704 | goto out; | |
4705 | status = decode_savefh(&xdr); | |
4706 | if (status) | |
4707 | goto out; | |
4708 | status = decode_open(&xdr, res); | |
56ae19f3 TM |
4709 | if (status) |
4710 | goto out; | |
9936781d | 4711 | if (decode_getfh(&xdr, &res->fh) != 0) |
1da177e4 | 4712 | goto out; |
56ae19f3 TM |
4713 | if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) |
4714 | goto out; | |
365c8f58 | 4715 | if (decode_restorefh(&xdr) != 0) |
56ae19f3 TM |
4716 | goto out; |
4717 | decode_getfattr(&xdr, res->dir_attr, res->server); | |
1da177e4 | 4718 | out: |
05d564fe | 4719 | return status; |
1da177e4 LT |
4720 | } |
4721 | ||
4722 | /* | |
4723 | * Decode OPEN_CONFIRM response | |
4724 | */ | |
8687b63a | 4725 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) |
1da177e4 | 4726 | { |
05d564fe AA |
4727 | struct xdr_stream xdr; |
4728 | struct compound_hdr hdr; | |
4729 | int status; | |
4730 | ||
4731 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4732 | status = decode_compound_hdr(&xdr, &hdr); | |
4733 | if (status) | |
4734 | goto out; | |
4735 | status = decode_putfh(&xdr); | |
4736 | if (status) | |
4737 | goto out; | |
4738 | status = decode_open_confirm(&xdr, res); | |
1da177e4 | 4739 | out: |
05d564fe | 4740 | return status; |
1da177e4 LT |
4741 | } |
4742 | ||
4743 | /* | |
4744 | * Decode OPEN response | |
4745 | */ | |
8687b63a | 4746 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4747 | { |
05d564fe AA |
4748 | struct xdr_stream xdr; |
4749 | struct compound_hdr hdr; | |
4750 | int status; | |
4751 | ||
4752 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4753 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4754 | if (status) |
4755 | goto out; | |
4756 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4757 | if (status) |
4758 | goto out; | |
4759 | status = decode_putfh(&xdr); | |
4760 | if (status) | |
4761 | goto out; | |
4762 | status = decode_open(&xdr, res); | |
4763 | if (status) | |
4764 | goto out; | |
864472e9 | 4765 | decode_getfattr(&xdr, res->f_attr, res->server); |
1da177e4 | 4766 | out: |
05d564fe | 4767 | return status; |
1da177e4 LT |
4768 | } |
4769 | ||
4770 | /* | |
4771 | * Decode SETATTR response | |
4772 | */ | |
8687b63a | 4773 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) |
1da177e4 | 4774 | { |
05d564fe AA |
4775 | struct xdr_stream xdr; |
4776 | struct compound_hdr hdr; | |
4777 | int status; | |
4778 | ||
4779 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4780 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4781 | if (status) |
4782 | goto out; | |
4783 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4784 | if (status) |
4785 | goto out; | |
4786 | status = decode_putfh(&xdr); | |
4787 | if (status) | |
4788 | goto out; | |
9e9ecc03 | 4789 | status = decode_setattr(&xdr); |
05d564fe AA |
4790 | if (status) |
4791 | goto out; | |
78f945f8 | 4792 | decode_getfattr(&xdr, res->fattr, res->server); |
1da177e4 | 4793 | out: |
05d564fe | 4794 | return status; |
1da177e4 LT |
4795 | } |
4796 | ||
4797 | /* | |
4798 | * Decode LOCK response | |
4799 | */ | |
8687b63a | 4800 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) |
1da177e4 LT |
4801 | { |
4802 | struct xdr_stream xdr; | |
4803 | struct compound_hdr hdr; | |
4804 | int status; | |
4805 | ||
4806 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4807 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4808 | if (status) |
4809 | goto out; | |
4810 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4811 | if (status) |
4812 | goto out; | |
4813 | status = decode_putfh(&xdr); | |
4814 | if (status) | |
4815 | goto out; | |
4816 | status = decode_lock(&xdr, res); | |
4817 | out: | |
4818 | return status; | |
4819 | } | |
4820 | ||
4821 | /* | |
4822 | * Decode LOCKT response | |
4823 | */ | |
8687b63a | 4824 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) |
1da177e4 LT |
4825 | { |
4826 | struct xdr_stream xdr; | |
4827 | struct compound_hdr hdr; | |
4828 | int status; | |
4829 | ||
4830 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4831 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4832 | if (status) |
4833 | goto out; | |
4834 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4835 | if (status) |
4836 | goto out; | |
4837 | status = decode_putfh(&xdr); | |
4838 | if (status) | |
4839 | goto out; | |
4840 | status = decode_lockt(&xdr, res); | |
4841 | out: | |
4842 | return status; | |
4843 | } | |
4844 | ||
4845 | /* | |
4846 | * Decode LOCKU response | |
4847 | */ | |
8687b63a | 4848 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) |
1da177e4 LT |
4849 | { |
4850 | struct xdr_stream xdr; | |
4851 | struct compound_hdr hdr; | |
4852 | int status; | |
4853 | ||
4854 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4855 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4856 | if (status) |
4857 | goto out; | |
4858 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4859 | if (status) |
4860 | goto out; | |
4861 | status = decode_putfh(&xdr); | |
4862 | if (status) | |
4863 | goto out; | |
4864 | status = decode_locku(&xdr, res); | |
4865 | out: | |
4866 | return status; | |
4867 | } | |
4868 | ||
4869 | /* | |
4870 | * Decode READLINK response | |
4871 | */ | |
f50c7000 BH |
4872 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, |
4873 | struct nfs4_readlink_res *res) | |
1da177e4 LT |
4874 | { |
4875 | struct xdr_stream xdr; | |
4876 | struct compound_hdr hdr; | |
4877 | int status; | |
4878 | ||
4879 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4880 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4881 | if (status) |
4882 | goto out; | |
4883 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4884 | if (status) |
4885 | goto out; | |
4886 | status = decode_putfh(&xdr); | |
4887 | if (status) | |
4888 | goto out; | |
4889 | status = decode_readlink(&xdr, rqstp); | |
4890 | out: | |
4891 | return status; | |
4892 | } | |
4893 | ||
4894 | /* | |
4895 | * Decode READDIR response | |
4896 | */ | |
8687b63a | 4897 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) |
1da177e4 LT |
4898 | { |
4899 | struct xdr_stream xdr; | |
4900 | struct compound_hdr hdr; | |
4901 | int status; | |
4902 | ||
4903 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4904 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4905 | if (status) |
4906 | goto out; | |
4907 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4908 | if (status) |
4909 | goto out; | |
4910 | status = decode_putfh(&xdr); | |
4911 | if (status) | |
4912 | goto out; | |
4913 | status = decode_readdir(&xdr, rqstp, res); | |
4914 | out: | |
4915 | return status; | |
4916 | } | |
4917 | ||
4918 | /* | |
4919 | * Decode Read response | |
4920 | */ | |
8687b63a | 4921 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) |
1da177e4 LT |
4922 | { |
4923 | struct xdr_stream xdr; | |
4924 | struct compound_hdr hdr; | |
4925 | int status; | |
4926 | ||
4927 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4928 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4929 | if (status) |
4930 | goto out; | |
4931 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4932 | if (status) |
4933 | goto out; | |
4934 | status = decode_putfh(&xdr); | |
4935 | if (status) | |
4936 | goto out; | |
4937 | status = decode_read(&xdr, rqstp, res); | |
4938 | if (!status) | |
4939 | status = res->count; | |
4940 | out: | |
4941 | return status; | |
4942 | } | |
4943 | ||
4944 | /* | |
4945 | * Decode WRITE response | |
4946 | */ | |
8687b63a | 4947 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4948 | { |
4949 | struct xdr_stream xdr; | |
4950 | struct compound_hdr hdr; | |
4951 | int status; | |
4952 | ||
4953 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4954 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4955 | if (status) |
4956 | goto out; | |
4957 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4958 | if (status) |
4959 | goto out; | |
4960 | status = decode_putfh(&xdr); | |
4961 | if (status) | |
4962 | goto out; | |
4963 | status = decode_write(&xdr, res); | |
4f9838c7 TM |
4964 | if (status) |
4965 | goto out; | |
4966 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4967 | if (!status) |
4968 | status = res->count; | |
4969 | out: | |
4970 | return status; | |
4971 | } | |
4972 | ||
4973 | /* | |
4974 | * Decode COMMIT response | |
4975 | */ | |
8687b63a | 4976 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4977 | { |
4978 | struct xdr_stream xdr; | |
4979 | struct compound_hdr hdr; | |
4980 | int status; | |
4981 | ||
4982 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4983 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4984 | if (status) |
4985 | goto out; | |
4986 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4987 | if (status) |
4988 | goto out; | |
4989 | status = decode_putfh(&xdr); | |
4990 | if (status) | |
4991 | goto out; | |
4992 | status = decode_commit(&xdr, res); | |
4f9838c7 TM |
4993 | if (status) |
4994 | goto out; | |
4995 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4996 | out: |
4997 | return status; | |
4998 | } | |
4999 | ||
5000 | /* | |
5001 | * FSINFO request | |
5002 | */ | |
3dda5e43 BH |
5003 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, |
5004 | struct nfs4_fsinfo_res *res) | |
1da177e4 LT |
5005 | { |
5006 | struct xdr_stream xdr; | |
5007 | struct compound_hdr hdr; | |
5008 | int status; | |
5009 | ||
5010 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5011 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5012 | if (!status) |
5013 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5014 | if (!status) |
5015 | status = decode_putfh(&xdr); | |
5016 | if (!status) | |
3dda5e43 | 5017 | status = decode_fsinfo(&xdr, res->fsinfo); |
1da177e4 LT |
5018 | return status; |
5019 | } | |
5020 | ||
5021 | /* | |
5022 | * PATHCONF request | |
5023 | */ | |
d45b2989 BH |
5024 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, |
5025 | struct nfs4_pathconf_res *res) | |
1da177e4 LT |
5026 | { |
5027 | struct xdr_stream xdr; | |
5028 | struct compound_hdr hdr; | |
5029 | int status; | |
5030 | ||
5031 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5032 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5033 | if (!status) |
5034 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5035 | if (!status) |
5036 | status = decode_putfh(&xdr); | |
5037 | if (!status) | |
d45b2989 | 5038 | status = decode_pathconf(&xdr, res->pathconf); |
1da177e4 LT |
5039 | return status; |
5040 | } | |
5041 | ||
5042 | /* | |
5043 | * STATFS request | |
5044 | */ | |
24ad148a BH |
5045 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, |
5046 | struct nfs4_statfs_res *res) | |
1da177e4 LT |
5047 | { |
5048 | struct xdr_stream xdr; | |
5049 | struct compound_hdr hdr; | |
5050 | int status; | |
5051 | ||
5052 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5053 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5054 | if (!status) |
5055 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5056 | if (!status) |
5057 | status = decode_putfh(&xdr); | |
5058 | if (!status) | |
24ad148a | 5059 | status = decode_statfs(&xdr, res->fsstat); |
1da177e4 LT |
5060 | return status; |
5061 | } | |
5062 | ||
5063 | /* | |
5064 | * GETATTR_BITMAP request | |
5065 | */ | |
8687b63a | 5066 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) |
1da177e4 LT |
5067 | { |
5068 | struct xdr_stream xdr; | |
5069 | struct compound_hdr hdr; | |
5070 | int status; | |
5071 | ||
5072 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
9b7b9fcc AA |
5073 | status = decode_compound_hdr(&xdr, &hdr); |
5074 | if (status) | |
5075 | goto out; | |
5076 | status = decode_sequence(&xdr, &res->seq_res, req); | |
5077 | if (status) | |
1da177e4 LT |
5078 | goto out; |
5079 | if ((status = decode_putfh(&xdr)) != 0) | |
5080 | goto out; | |
5081 | status = decode_server_caps(&xdr, res); | |
5082 | out: | |
5083 | return status; | |
5084 | } | |
5085 | ||
5086 | /* | |
5087 | * Decode RENEW response | |
5088 | */ | |
8687b63a | 5089 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) |
1da177e4 LT |
5090 | { |
5091 | struct xdr_stream xdr; | |
5092 | struct compound_hdr hdr; | |
5093 | int status; | |
5094 | ||
5095 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5096 | status = decode_compound_hdr(&xdr, &hdr); | |
5097 | if (!status) | |
5098 | status = decode_renew(&xdr); | |
5099 | return status; | |
5100 | } | |
5101 | ||
5102 | /* | |
5103 | * a SETCLIENTID request | |
5104 | */ | |
8687b63a | 5105 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, |
adfa6f98 | 5106 | struct nfs_client *clp) |
1da177e4 LT |
5107 | { |
5108 | struct xdr_stream xdr; | |
5109 | struct compound_hdr hdr; | |
5110 | int status; | |
5111 | ||
5112 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5113 | status = decode_compound_hdr(&xdr, &hdr); | |
5114 | if (!status) | |
5115 | status = decode_setclientid(&xdr, clp); | |
1da177e4 LT |
5116 | return status; |
5117 | } | |
5118 | ||
5119 | /* | |
5120 | * a SETCLIENTID_CONFIRM request | |
5121 | */ | |
8687b63a | 5122 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
5123 | { |
5124 | struct xdr_stream xdr; | |
5125 | struct compound_hdr hdr; | |
5126 | int status; | |
5127 | ||
5128 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5129 | status = decode_compound_hdr(&xdr, &hdr); | |
5130 | if (!status) | |
5131 | status = decode_setclientid_confirm(&xdr); | |
5132 | if (!status) | |
5133 | status = decode_putrootfh(&xdr); | |
5134 | if (!status) | |
5135 | status = decode_fsinfo(&xdr, fsinfo); | |
1da177e4 LT |
5136 | return status; |
5137 | } | |
5138 | ||
5139 | /* | |
5140 | * DELEGRETURN request | |
5141 | */ | |
8687b63a | 5142 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) |
1da177e4 LT |
5143 | { |
5144 | struct xdr_stream xdr; | |
5145 | struct compound_hdr hdr; | |
5146 | int status; | |
5147 | ||
5148 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5149 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5150 | if (status) |
5151 | goto out; | |
5152 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
5153 | if (status) | |
fa178f29 TM |
5154 | goto out; |
5155 | status = decode_putfh(&xdr); | |
5156 | if (status != 0) | |
5157 | goto out; | |
5158 | status = decode_delegreturn(&xdr); | |
5159 | decode_getfattr(&xdr, res->fattr, res->server); | |
5160 | out: | |
1da177e4 LT |
5161 | return status; |
5162 | } | |
5163 | ||
683b57b4 TM |
5164 | /* |
5165 | * FS_LOCATIONS request | |
5166 | */ | |
22958463 BH |
5167 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, |
5168 | struct nfs4_fs_locations_res *res) | |
683b57b4 TM |
5169 | { |
5170 | struct xdr_stream xdr; | |
5171 | struct compound_hdr hdr; | |
5172 | int status; | |
5173 | ||
5174 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5175 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5176 | if (status) |
5177 | goto out; | |
5178 | status = decode_sequence(&xdr, &res->seq_res, req); | |
5179 | if (status) | |
683b57b4 TM |
5180 | goto out; |
5181 | if ((status = decode_putfh(&xdr)) != 0) | |
5182 | goto out; | |
5183 | if ((status = decode_lookup(&xdr)) != 0) | |
5184 | goto out; | |
5185 | xdr_enter_page(&xdr, PAGE_SIZE); | |
22958463 BH |
5186 | status = decode_getfattr(&xdr, &res->fs_locations->fattr, |
5187 | res->fs_locations->server); | |
683b57b4 TM |
5188 | out: |
5189 | return status; | |
5190 | } | |
5191 | ||
99fe60d0 BH |
5192 | #if defined(CONFIG_NFS_V4_1) |
5193 | /* | |
5194 | * EXCHANGE_ID request | |
5195 | */ | |
5196 | static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, | |
5197 | void *res) | |
5198 | { | |
5199 | struct xdr_stream xdr; | |
5200 | struct compound_hdr hdr; | |
5201 | int status; | |
5202 | ||
5203 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5204 | status = decode_compound_hdr(&xdr, &hdr); | |
5205 | if (!status) | |
5206 | status = decode_exchange_id(&xdr, res); | |
5207 | return status; | |
5208 | } | |
2050f0cc | 5209 | |
fc931582 AA |
5210 | /* |
5211 | * a CREATE_SESSION request | |
5212 | */ | |
5213 | static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, | |
5214 | struct nfs41_create_session_res *res) | |
5215 | { | |
5216 | struct xdr_stream xdr; | |
5217 | struct compound_hdr hdr; | |
5218 | int status; | |
5219 | ||
5220 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5221 | status = decode_compound_hdr(&xdr, &hdr); | |
5222 | if (!status) | |
5223 | status = decode_create_session(&xdr, res); | |
5224 | return status; | |
5225 | } | |
5226 | ||
0f3e66c6 AA |
5227 | /* |
5228 | * a DESTROY_SESSION request | |
5229 | */ | |
5230 | static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, | |
5231 | void *dummy) | |
5232 | { | |
5233 | struct xdr_stream xdr; | |
5234 | struct compound_hdr hdr; | |
5235 | int status; | |
5236 | ||
5237 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5238 | status = decode_compound_hdr(&xdr, &hdr); | |
5239 | if (!status) | |
5240 | status = decode_destroy_session(&xdr, dummy); | |
5241 | return status; | |
5242 | } | |
5243 | ||
fc01cea9 AA |
5244 | /* |
5245 | * a SEQUENCE request | |
5246 | */ | |
5247 | static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, | |
5248 | struct nfs4_sequence_res *res) | |
5249 | { | |
5250 | struct xdr_stream xdr; | |
5251 | struct compound_hdr hdr; | |
5252 | int status; | |
5253 | ||
5254 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5255 | status = decode_compound_hdr(&xdr, &hdr); | |
5256 | if (!status) | |
5257 | status = decode_sequence(&xdr, res, rqstp); | |
5258 | return status; | |
5259 | } | |
5260 | ||
2050f0cc AA |
5261 | /* |
5262 | * a GET_LEASE_TIME request | |
5263 | */ | |
5264 | static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, | |
5265 | struct nfs4_get_lease_time_res *res) | |
5266 | { | |
5267 | struct xdr_stream xdr; | |
5268 | struct compound_hdr hdr; | |
5269 | int status; | |
5270 | ||
5271 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5272 | status = decode_compound_hdr(&xdr, &hdr); | |
5273 | if (!status) | |
5274 | status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); | |
5275 | if (!status) | |
5276 | status = decode_putrootfh(&xdr); | |
5277 | if (!status) | |
5278 | status = decode_fsinfo(&xdr, res->lr_fsinfo); | |
5279 | return status; | |
5280 | } | |
99fe60d0 BH |
5281 | #endif /* CONFIG_NFS_V4_1 */ |
5282 | ||
0dbb4c67 | 5283 | __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) |
1da177e4 LT |
5284 | { |
5285 | uint32_t bitmap[2] = {0}; | |
5286 | uint32_t len; | |
5287 | ||
5288 | if (!*p++) { | |
5289 | if (!*p) | |
5290 | return ERR_PTR(-EAGAIN); | |
5291 | entry->eof = 1; | |
5292 | return ERR_PTR(-EBADCOOKIE); | |
5293 | } | |
5294 | ||
5295 | entry->prev_cookie = entry->cookie; | |
5296 | p = xdr_decode_hyper(p, &entry->cookie); | |
5297 | entry->len = ntohl(*p++); | |
5298 | entry->name = (const char *) p; | |
5299 | p += XDR_QUADLEN(entry->len); | |
5300 | ||
5301 | /* | |
5302 | * In case the server doesn't return an inode number, | |
5303 | * we fake one here. (We don't use inode number 0, | |
5304 | * since glibc seems to choke on it...) | |
5305 | */ | |
5306 | entry->ino = 1; | |
5307 | ||
5308 | len = ntohl(*p++); /* bitmap length */ | |
5309 | if (len-- > 0) { | |
5310 | bitmap[0] = ntohl(*p++); | |
5311 | if (len-- > 0) { | |
5312 | bitmap[1] = ntohl(*p++); | |
5313 | p += len; | |
5314 | } | |
5315 | } | |
5316 | len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ | |
5317 | if (len > 0) { | |
97d312d0 MN |
5318 | if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { |
5319 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; | |
5320 | /* Ignore the return value of rdattr_error for now */ | |
5321 | p++; | |
5322 | len--; | |
5323 | } | |
1da177e4 LT |
5324 | if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) |
5325 | xdr_decode_hyper(p, &entry->ino); | |
5326 | else if (bitmap[0] == FATTR4_WORD0_FILEID) | |
5327 | xdr_decode_hyper(p, &entry->ino); | |
5328 | p += len; | |
5329 | } | |
5330 | ||
5331 | entry->eof = !p[0] && p[1]; | |
5332 | return p; | |
5333 | } | |
5334 | ||
5335 | /* | |
5336 | * We need to translate between nfs status return values and | |
5337 | * the local errno values which may not be the same. | |
5338 | */ | |
5339 | static struct { | |
5340 | int stat; | |
5341 | int errno; | |
5342 | } nfs_errtbl[] = { | |
5343 | { NFS4_OK, 0 }, | |
856dff3d BH |
5344 | { NFS4ERR_PERM, -EPERM }, |
5345 | { NFS4ERR_NOENT, -ENOENT }, | |
5346 | { NFS4ERR_IO, -errno_NFSERR_IO}, | |
5347 | { NFS4ERR_NXIO, -ENXIO }, | |
5348 | { NFS4ERR_ACCESS, -EACCES }, | |
5349 | { NFS4ERR_EXIST, -EEXIST }, | |
5350 | { NFS4ERR_XDEV, -EXDEV }, | |
5351 | { NFS4ERR_NOTDIR, -ENOTDIR }, | |
5352 | { NFS4ERR_ISDIR, -EISDIR }, | |
5353 | { NFS4ERR_INVAL, -EINVAL }, | |
5354 | { NFS4ERR_FBIG, -EFBIG }, | |
5355 | { NFS4ERR_NOSPC, -ENOSPC }, | |
5356 | { NFS4ERR_ROFS, -EROFS }, | |
5357 | { NFS4ERR_MLINK, -EMLINK }, | |
5358 | { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, | |
5359 | { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, | |
5360 | { NFS4ERR_DQUOT, -EDQUOT }, | |
5361 | { NFS4ERR_STALE, -ESTALE }, | |
5362 | { NFS4ERR_BADHANDLE, -EBADHANDLE }, | |
5363 | { NFS4ERR_BADOWNER, -EINVAL }, | |
5364 | { NFS4ERR_BADNAME, -EINVAL }, | |
5365 | { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, | |
5366 | { NFS4ERR_NOTSUPP, -ENOTSUPP }, | |
5367 | { NFS4ERR_TOOSMALL, -ETOOSMALL }, | |
5368 | { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, | |
5369 | { NFS4ERR_BADTYPE, -EBADTYPE }, | |
5370 | { NFS4ERR_LOCKED, -EAGAIN }, | |
5371 | { NFS4ERR_RESOURCE, -EREMOTEIO }, | |
5372 | { NFS4ERR_SYMLINK, -ELOOP }, | |
5373 | { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, | |
5374 | { NFS4ERR_DEADLOCK, -EDEADLK }, | |
5375 | { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs | |
1da177e4 LT |
5376 | * to be handled by a |
5377 | * middle-layer. | |
5378 | */ | |
856dff3d | 5379 | { -1, -EIO } |
1da177e4 LT |
5380 | }; |
5381 | ||
5382 | /* | |
5383 | * Convert an NFS error code to a local one. | |
5384 | * This one is used jointly by NFSv2 and NFSv3. | |
5385 | */ | |
5386 | static int | |
0a8ea437 | 5387 | nfs4_stat_to_errno(int stat) |
1da177e4 LT |
5388 | { |
5389 | int i; | |
5390 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { | |
5391 | if (nfs_errtbl[i].stat == stat) | |
5392 | return nfs_errtbl[i].errno; | |
5393 | } | |
5394 | if (stat <= 10000 || stat > 10100) { | |
5395 | /* The server is looney tunes. */ | |
856dff3d | 5396 | return -ESERVERFAULT; |
1da177e4 LT |
5397 | } |
5398 | /* If we cannot translate the error, the recovery routines should | |
5399 | * handle it. | |
5400 | * Note: remaining NFSv4 error codes have values > 10000, so should | |
5401 | * not conflict with native Linux error codes. | |
5402 | */ | |
856dff3d | 5403 | return -stat; |
1da177e4 LT |
5404 | } |
5405 | ||
1da177e4 LT |
5406 | #define PROC(proc, argtype, restype) \ |
5407 | [NFSPROC4_CLNT_##proc] = { \ | |
5408 | .p_proc = NFSPROC4_COMPOUND, \ | |
5409 | .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ | |
5410 | .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ | |
2bea90d4 CL |
5411 | .p_arglen = NFS4_##argtype##_sz, \ |
5412 | .p_replen = NFS4_##restype##_sz, \ | |
cc0175c1 CL |
5413 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
5414 | .p_name = #proc, \ | |
05d564fe | 5415 | } |
1da177e4 LT |
5416 | |
5417 | struct rpc_procinfo nfs4_procedures[] = { | |
5418 | PROC(READ, enc_read, dec_read), | |
5419 | PROC(WRITE, enc_write, dec_write), | |
5420 | PROC(COMMIT, enc_commit, dec_commit), | |
5421 | PROC(OPEN, enc_open, dec_open), | |
5422 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), | |
5423 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), | |
5424 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), | |
5425 | PROC(CLOSE, enc_close, dec_close), | |
5426 | PROC(SETATTR, enc_setattr, dec_setattr), | |
5427 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), | |
5428 | PROC(RENEW, enc_renew, dec_renew), | |
5429 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), | |
5430 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), | |
5431 | PROC(LOCK, enc_lock, dec_lock), | |
5432 | PROC(LOCKT, enc_lockt, dec_lockt), | |
5433 | PROC(LOCKU, enc_locku, dec_locku), | |
5434 | PROC(ACCESS, enc_access, dec_access), | |
5435 | PROC(GETATTR, enc_getattr, dec_getattr), | |
5436 | PROC(LOOKUP, enc_lookup, dec_lookup), | |
5437 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), | |
5438 | PROC(REMOVE, enc_remove, dec_remove), | |
5439 | PROC(RENAME, enc_rename, dec_rename), | |
5440 | PROC(LINK, enc_link, dec_link), | |
5441 | PROC(SYMLINK, enc_symlink, dec_symlink), | |
5442 | PROC(CREATE, enc_create, dec_create), | |
5443 | PROC(PATHCONF, enc_pathconf, dec_pathconf), | |
5444 | PROC(STATFS, enc_statfs, dec_statfs), | |
5445 | PROC(READLINK, enc_readlink, dec_readlink), | |
5446 | PROC(READDIR, enc_readdir, dec_readdir), | |
5447 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), | |
5448 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), | |
029d105e | 5449 | PROC(GETACL, enc_getacl, dec_getacl), |
23ec6965 | 5450 | PROC(SETACL, enc_setacl, dec_setacl), |
683b57b4 | 5451 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), |
99fe60d0 BH |
5452 | #if defined(CONFIG_NFS_V4_1) |
5453 | PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), | |
fc931582 | 5454 | PROC(CREATE_SESSION, enc_create_session, dec_create_session), |
0f3e66c6 | 5455 | PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), |
fc01cea9 | 5456 | PROC(SEQUENCE, enc_sequence, dec_sequence), |
2050f0cc | 5457 | PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), |
99fe60d0 | 5458 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 LT |
5459 | }; |
5460 | ||
5461 | struct rpc_version nfs_version4 = { | |
5462 | .number = 4, | |
e8c96f8c | 5463 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
1da177e4 LT |
5464 | .procs = nfs4_procedures |
5465 | }; | |
5466 | ||
5467 | /* | |
5468 | * Local variables: | |
5469 | * c-basic-offset: 8 | |
5470 | * End: | |
5471 | */ |