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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); | |
13c65ce9 | 735 | p = reserve_space(xdr, 12 + hdr->taglen); |
e75bc1c8 | 736 | *p++ = cpu_to_be32(hdr->taglen); |
93f0cf25 | 737 | p = xdr_encode_opaque_fixed(p, hdr->tag, hdr->taglen); |
e75bc1c8 | 738 | *p++ = cpu_to_be32(hdr->minorversion); |
d017931c | 739 | hdr->nops_p = p; |
34558513 | 740 | *p = cpu_to_be32(hdr->nops); |
d017931c AA |
741 | } |
742 | ||
743 | static void encode_nops(struct compound_hdr *hdr) | |
744 | { | |
fc931582 | 745 | BUG_ON(hdr->nops > NFS4_MAX_OPS); |
d017931c | 746 | *hdr->nops_p = htonl(hdr->nops); |
1da177e4 LT |
747 | } |
748 | ||
749 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) | |
750 | { | |
8687b63a | 751 | __be32 *p; |
1da177e4 LT |
752 | |
753 | p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); | |
754 | BUG_ON(p == NULL); | |
755 | xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); | |
756 | } | |
757 | ||
cf8cdbe5 | 758 | static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) |
1da177e4 LT |
759 | { |
760 | char owner_name[IDMAP_NAMESZ]; | |
761 | char owner_group[IDMAP_NAMESZ]; | |
762 | int owner_namelen = 0; | |
763 | int owner_grouplen = 0; | |
8687b63a AV |
764 | __be32 *p; |
765 | __be32 *q; | |
1da177e4 LT |
766 | int len; |
767 | uint32_t bmval0 = 0; | |
768 | uint32_t bmval1 = 0; | |
1da177e4 LT |
769 | |
770 | /* | |
771 | * We reserve enough space to write the entire attribute buffer at once. | |
772 | * In the worst-case, this would be | |
773 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) | |
774 | * = 36 bytes, plus any contribution from variable-length fields | |
23ec6965 | 775 | * such as owner/group. |
1da177e4 LT |
776 | */ |
777 | len = 16; | |
778 | ||
779 | /* Sigh */ | |
780 | if (iap->ia_valid & ATTR_SIZE) | |
781 | len += 8; | |
782 | if (iap->ia_valid & ATTR_MODE) | |
783 | len += 4; | |
784 | if (iap->ia_valid & ATTR_UID) { | |
7539bbab | 785 | owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); |
1da177e4 | 786 | if (owner_namelen < 0) { |
fe82a183 CL |
787 | dprintk("nfs: couldn't resolve uid %d to string\n", |
788 | iap->ia_uid); | |
1da177e4 LT |
789 | /* XXX */ |
790 | strcpy(owner_name, "nobody"); | |
791 | owner_namelen = sizeof("nobody") - 1; | |
792 | /* goto out; */ | |
793 | } | |
794 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); | |
795 | } | |
796 | if (iap->ia_valid & ATTR_GID) { | |
7539bbab | 797 | owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); |
1da177e4 | 798 | if (owner_grouplen < 0) { |
fe82a183 CL |
799 | dprintk("nfs: couldn't resolve gid %d to string\n", |
800 | iap->ia_gid); | |
1da177e4 LT |
801 | strcpy(owner_group, "nobody"); |
802 | owner_grouplen = sizeof("nobody") - 1; | |
803 | /* goto out; */ | |
804 | } | |
805 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); | |
806 | } | |
807 | if (iap->ia_valid & ATTR_ATIME_SET) | |
808 | len += 16; | |
809 | else if (iap->ia_valid & ATTR_ATIME) | |
810 | len += 4; | |
811 | if (iap->ia_valid & ATTR_MTIME_SET) | |
812 | len += 16; | |
813 | else if (iap->ia_valid & ATTR_MTIME) | |
814 | len += 4; | |
13c65ce9 | 815 | p = reserve_space(xdr, len); |
1da177e4 LT |
816 | |
817 | /* | |
818 | * We write the bitmap length now, but leave the bitmap and the attribute | |
819 | * buffer length to be backfilled at the end of this routine. | |
820 | */ | |
e75bc1c8 | 821 | *p++ = cpu_to_be32(2); |
1da177e4 LT |
822 | q = p; |
823 | p += 3; | |
824 | ||
825 | if (iap->ia_valid & ATTR_SIZE) { | |
826 | bmval0 |= FATTR4_WORD0_SIZE; | |
b95be5a9 | 827 | p = xdr_encode_hyper(p, iap->ia_size); |
1da177e4 LT |
828 | } |
829 | if (iap->ia_valid & ATTR_MODE) { | |
830 | bmval1 |= FATTR4_WORD1_MODE; | |
e75bc1c8 | 831 | *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); |
1da177e4 LT |
832 | } |
833 | if (iap->ia_valid & ATTR_UID) { | |
834 | bmval1 |= FATTR4_WORD1_OWNER; | |
e75bc1c8 | 835 | *p++ = cpu_to_be32(owner_namelen); |
93f0cf25 | 836 | p = xdr_encode_opaque_fixed(p, owner_name, owner_namelen); |
1da177e4 LT |
837 | } |
838 | if (iap->ia_valid & ATTR_GID) { | |
839 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; | |
e75bc1c8 | 840 | *p++ = cpu_to_be32(owner_grouplen); |
93f0cf25 | 841 | p = xdr_encode_opaque_fixed(p, owner_group, owner_grouplen); |
1da177e4 LT |
842 | } |
843 | if (iap->ia_valid & ATTR_ATIME_SET) { | |
844 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
e75bc1c8 BH |
845 | *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); |
846 | *p++ = cpu_to_be32(0); | |
847 | *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); | |
848 | *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); | |
1da177e4 LT |
849 | } |
850 | else if (iap->ia_valid & ATTR_ATIME) { | |
851 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
e75bc1c8 | 852 | *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); |
1da177e4 LT |
853 | } |
854 | if (iap->ia_valid & ATTR_MTIME_SET) { | |
855 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
e75bc1c8 BH |
856 | *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); |
857 | *p++ = cpu_to_be32(0); | |
858 | *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); | |
859 | *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); | |
1da177e4 LT |
860 | } |
861 | else if (iap->ia_valid & ATTR_MTIME) { | |
862 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
e75bc1c8 | 863 | *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); |
1da177e4 | 864 | } |
6c0195a4 | 865 | |
1da177e4 LT |
866 | /* |
867 | * Now we backfill the bitmap and the attribute buffer length. | |
868 | */ | |
869 | if (len != ((char *)p - (char *)q) + 4) { | |
fe82a183 | 870 | printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", |
1da177e4 LT |
871 | len, ((char *)p - (char *)q) + 4); |
872 | BUG(); | |
873 | } | |
874 | len = (char *)p - (char *)q - 12; | |
875 | *q++ = htonl(bmval0); | |
876 | *q++ = htonl(bmval1); | |
34558513 | 877 | *q = htonl(len); |
1da177e4 | 878 | |
1da177e4 | 879 | /* out: */ |
1da177e4 LT |
880 | } |
881 | ||
cf8cdbe5 | 882 | static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) |
1da177e4 | 883 | { |
8687b63a | 884 | __be32 *p; |
1da177e4 | 885 | |
13c65ce9 | 886 | p = reserve_space(xdr, 8); |
e75bc1c8 | 887 | *p++ = cpu_to_be32(OP_ACCESS); |
34558513 | 888 | *p = cpu_to_be32(access); |
d017931c | 889 | hdr->nops++; |
dadf0c27 | 890 | hdr->replen += decode_access_maxsz; |
1da177e4 LT |
891 | } |
892 | ||
cf8cdbe5 | 893 | static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 894 | { |
8687b63a | 895 | __be32 *p; |
1da177e4 | 896 | |
13c65ce9 | 897 | p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); |
e75bc1c8 BH |
898 | *p++ = cpu_to_be32(OP_CLOSE); |
899 | *p++ = cpu_to_be32(arg->seqid->sequence->counter); | |
34558513 | 900 | xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
d017931c | 901 | hdr->nops++; |
dadf0c27 | 902 | hdr->replen += decode_close_maxsz; |
1da177e4 LT |
903 | } |
904 | ||
cf8cdbe5 | 905 | static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 906 | { |
8687b63a | 907 | __be32 *p; |
6c0195a4 | 908 | |
13c65ce9 | 909 | p = reserve_space(xdr, 16); |
e75bc1c8 | 910 | *p++ = cpu_to_be32(OP_COMMIT); |
b95be5a9 | 911 | p = xdr_encode_hyper(p, args->offset); |
34558513 | 912 | *p = cpu_to_be32(args->count); |
d017931c | 913 | hdr->nops++; |
dadf0c27 | 914 | hdr->replen += decode_commit_maxsz; |
1da177e4 LT |
915 | } |
916 | ||
cf8cdbe5 | 917 | static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) |
1da177e4 | 918 | { |
8687b63a | 919 | __be32 *p; |
6c0195a4 | 920 | |
13c65ce9 | 921 | p = reserve_space(xdr, 8); |
e75bc1c8 | 922 | *p++ = cpu_to_be32(OP_CREATE); |
34558513 | 923 | *p = cpu_to_be32(create->ftype); |
1da177e4 LT |
924 | |
925 | switch (create->ftype) { | |
926 | case NF4LNK: | |
13c65ce9 | 927 | p = reserve_space(xdr, 4); |
34558513 | 928 | *p = cpu_to_be32(create->u.symlink.len); |
94a6d753 | 929 | xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); |
1da177e4 LT |
930 | break; |
931 | ||
932 | case NF4BLK: case NF4CHR: | |
13c65ce9 | 933 | p = reserve_space(xdr, 8); |
e75bc1c8 | 934 | *p++ = cpu_to_be32(create->u.device.specdata1); |
34558513 | 935 | *p = cpu_to_be32(create->u.device.specdata2); |
1da177e4 LT |
936 | break; |
937 | ||
938 | default: | |
939 | break; | |
940 | } | |
941 | ||
13c65ce9 | 942 | p = reserve_space(xdr, 4 + create->name->len); |
e75bc1c8 | 943 | *p++ = cpu_to_be32(create->name->len); |
34558513 | 944 | xdr_encode_opaque_fixed(p, create->name->name, create->name->len); |
d017931c | 945 | hdr->nops++; |
dadf0c27 | 946 | hdr->replen += decode_create_maxsz; |
1da177e4 | 947 | |
cf8cdbe5 | 948 | encode_attrs(xdr, create->attrs, create->server); |
1da177e4 LT |
949 | } |
950 | ||
cf8cdbe5 | 951 | static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) |
1da177e4 | 952 | { |
05d564fe | 953 | __be32 *p; |
1da177e4 | 954 | |
13c65ce9 | 955 | p = reserve_space(xdr, 12); |
e75bc1c8 BH |
956 | *p++ = cpu_to_be32(OP_GETATTR); |
957 | *p++ = cpu_to_be32(1); | |
34558513 | 958 | *p = cpu_to_be32(bitmap); |
d017931c | 959 | hdr->nops++; |
dadf0c27 | 960 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
961 | } |
962 | ||
cf8cdbe5 | 963 | static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) |
1da177e4 | 964 | { |
05d564fe | 965 | __be32 *p; |
1da177e4 | 966 | |
13c65ce9 | 967 | p = reserve_space(xdr, 16); |
e75bc1c8 BH |
968 | *p++ = cpu_to_be32(OP_GETATTR); |
969 | *p++ = cpu_to_be32(2); | |
970 | *p++ = cpu_to_be32(bm0); | |
34558513 | 971 | *p = cpu_to_be32(bm1); |
d017931c | 972 | hdr->nops++; |
dadf0c27 | 973 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
974 | } |
975 | ||
cf8cdbe5 | 976 | static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 977 | { |
cf8cdbe5 AA |
978 | encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], |
979 | bitmask[1] & nfs4_fattr_bitmap[1], hdr); | |
1da177e4 LT |
980 | } |
981 | ||
cf8cdbe5 | 982 | static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 983 | { |
cf8cdbe5 AA |
984 | encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
985 | bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); | |
1da177e4 LT |
986 | } |
987 | ||
cf8cdbe5 | 988 | static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
830b8e33 | 989 | { |
cf8cdbe5 AA |
990 | encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], |
991 | bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); | |
830b8e33 MN |
992 | } |
993 | ||
cf8cdbe5 | 994 | static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 995 | { |
8687b63a | 996 | __be32 *p; |
1da177e4 | 997 | |
13c65ce9 | 998 | p = reserve_space(xdr, 4); |
34558513 | 999 | *p = cpu_to_be32(OP_GETFH); |
d017931c | 1000 | hdr->nops++; |
dadf0c27 | 1001 | hdr->replen += decode_getfh_maxsz; |
1da177e4 LT |
1002 | } |
1003 | ||
cf8cdbe5 | 1004 | static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1005 | { |
8687b63a | 1006 | __be32 *p; |
1da177e4 | 1007 | |
13c65ce9 | 1008 | p = reserve_space(xdr, 8 + name->len); |
e75bc1c8 BH |
1009 | *p++ = cpu_to_be32(OP_LINK); |
1010 | *p++ = cpu_to_be32(name->len); | |
34558513 | 1011 | xdr_encode_opaque_fixed(p, name->name, name->len); |
d017931c | 1012 | hdr->nops++; |
dadf0c27 | 1013 | hdr->replen += decode_link_maxsz; |
1da177e4 LT |
1014 | } |
1015 | ||
911d1aaf TM |
1016 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
1017 | { | |
1018 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) | |
1019 | return block ? NFS4_READW_LT : NFS4_READ_LT; | |
1020 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; | |
1021 | } | |
1022 | ||
1023 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) | |
1024 | { | |
1025 | if (fl->fl_end == OFFSET_MAX) | |
1026 | return ~(uint64_t)0; | |
1027 | return fl->fl_end - fl->fl_start + 1; | |
1028 | } | |
1029 | ||
1da177e4 LT |
1030 | /* |
1031 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 | |
1032 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 | |
1033 | */ | |
cf8cdbe5 | 1034 | static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) |
1da177e4 | 1035 | { |
8687b63a | 1036 | __be32 *p; |
1da177e4 | 1037 | |
13c65ce9 | 1038 | p = reserve_space(xdr, 32); |
e75bc1c8 BH |
1039 | *p++ = cpu_to_be32(OP_LOCK); |
1040 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); | |
1041 | *p++ = cpu_to_be32(args->reclaim); | |
b95be5a9 BH |
1042 | p = xdr_encode_hyper(p, args->fl->fl_start); |
1043 | p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); | |
34558513 | 1044 | *p = cpu_to_be32(args->new_lock_owner); |
911d1aaf | 1045 | if (args->new_lock_owner){ |
13c65ce9 | 1046 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+32); |
e75bc1c8 | 1047 | *p++ = cpu_to_be32(args->open_seqid->sequence->counter); |
93f0cf25 | 1048 | p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); |
e75bc1c8 | 1049 | *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); |
b95be5a9 | 1050 | p = xdr_encode_hyper(p, args->lock_owner.clientid); |
e75bc1c8 | 1051 | *p++ = cpu_to_be32(16); |
93f0cf25 | 1052 | p = xdr_encode_opaque_fixed(p, "lock id:", 8); |
34558513 | 1053 | xdr_encode_hyper(p, args->lock_owner.id); |
1da177e4 LT |
1054 | } |
1055 | else { | |
13c65ce9 | 1056 | p = reserve_space(xdr, NFS4_STATEID_SIZE+4); |
93f0cf25 | 1057 | p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1058 | *p = cpu_to_be32(args->lock_seqid->sequence->counter); |
1da177e4 | 1059 | } |
d017931c | 1060 | hdr->nops++; |
dadf0c27 | 1061 | hdr->replen += decode_lock_maxsz; |
1da177e4 LT |
1062 | } |
1063 | ||
cf8cdbe5 | 1064 | static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) |
1da177e4 | 1065 | { |
8687b63a | 1066 | __be32 *p; |
1da177e4 | 1067 | |
13c65ce9 | 1068 | p = reserve_space(xdr, 52); |
e75bc1c8 BH |
1069 | *p++ = cpu_to_be32(OP_LOCKT); |
1070 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); | |
b95be5a9 BH |
1071 | p = xdr_encode_hyper(p, args->fl->fl_start); |
1072 | p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); | |
1073 | p = xdr_encode_hyper(p, args->lock_owner.clientid); | |
e75bc1c8 | 1074 | *p++ = cpu_to_be32(16); |
93f0cf25 | 1075 | p = xdr_encode_opaque_fixed(p, "lock id:", 8); |
34558513 | 1076 | xdr_encode_hyper(p, args->lock_owner.id); |
d017931c | 1077 | hdr->nops++; |
dadf0c27 | 1078 | hdr->replen += decode_lockt_maxsz; |
1da177e4 LT |
1079 | } |
1080 | ||
cf8cdbe5 | 1081 | static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) |
1da177e4 | 1082 | { |
8687b63a | 1083 | __be32 *p; |
1da177e4 | 1084 | |
13c65ce9 | 1085 | p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); |
e75bc1c8 BH |
1086 | *p++ = cpu_to_be32(OP_LOCKU); |
1087 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); | |
1088 | *p++ = cpu_to_be32(args->seqid->sequence->counter); | |
93f0cf25 | 1089 | p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); |
b95be5a9 | 1090 | p = xdr_encode_hyper(p, args->fl->fl_start); |
34558513 | 1091 | xdr_encode_hyper(p, nfs4_lock_length(args->fl)); |
d017931c | 1092 | hdr->nops++; |
dadf0c27 | 1093 | hdr->replen += decode_locku_maxsz; |
1da177e4 LT |
1094 | } |
1095 | ||
cf8cdbe5 | 1096 | static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 LT |
1097 | { |
1098 | int len = name->len; | |
8687b63a | 1099 | __be32 *p; |
1da177e4 | 1100 | |
13c65ce9 | 1101 | p = reserve_space(xdr, 8 + len); |
e75bc1c8 BH |
1102 | *p++ = cpu_to_be32(OP_LOOKUP); |
1103 | *p++ = cpu_to_be32(len); | |
34558513 | 1104 | xdr_encode_opaque_fixed(p, name->name, len); |
d017931c | 1105 | hdr->nops++; |
dadf0c27 | 1106 | hdr->replen += decode_lookup_maxsz; |
1da177e4 LT |
1107 | } |
1108 | ||
dc0b027d | 1109 | static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) |
1da177e4 | 1110 | { |
8687b63a | 1111 | __be32 *p; |
1da177e4 | 1112 | |
13c65ce9 | 1113 | p = reserve_space(xdr, 8); |
dc0b027d | 1114 | switch (fmode & (FMODE_READ|FMODE_WRITE)) { |
05d564fe | 1115 | case FMODE_READ: |
e75bc1c8 | 1116 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); |
05d564fe AA |
1117 | break; |
1118 | case FMODE_WRITE: | |
e75bc1c8 | 1119 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); |
05d564fe AA |
1120 | break; |
1121 | case FMODE_READ|FMODE_WRITE: | |
e75bc1c8 | 1122 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); |
05d564fe AA |
1123 | break; |
1124 | default: | |
e75bc1c8 | 1125 | *p++ = cpu_to_be32(0); |
1da177e4 | 1126 | } |
34558513 | 1127 | *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ |
1da177e4 LT |
1128 | } |
1129 | ||
1130 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1131 | { | |
8687b63a | 1132 | __be32 *p; |
1da177e4 LT |
1133 | /* |
1134 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, | |
1135 | * owner 4 = 32 | |
1136 | */ | |
13c65ce9 | 1137 | p = reserve_space(xdr, 8); |
e75bc1c8 | 1138 | *p++ = cpu_to_be32(OP_OPEN); |
34558513 | 1139 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
dc0b027d | 1140 | encode_share_access(xdr, arg->fmode); |
13c65ce9 | 1141 | p = reserve_space(xdr, 28); |
b95be5a9 | 1142 | p = xdr_encode_hyper(p, arg->clientid); |
e75bc1c8 | 1143 | *p++ = cpu_to_be32(16); |
93f0cf25 | 1144 | p = xdr_encode_opaque_fixed(p, "open id:", 8); |
34558513 | 1145 | xdr_encode_hyper(p, arg->id); |
1da177e4 LT |
1146 | } |
1147 | ||
1148 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1149 | { | |
8687b63a | 1150 | __be32 *p; |
1da177e4 | 1151 | |
13c65ce9 | 1152 | p = reserve_space(xdr, 4); |
1da177e4 | 1153 | switch(arg->open_flags & O_EXCL) { |
05d564fe | 1154 | case 0: |
34558513 | 1155 | *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); |
05d564fe AA |
1156 | encode_attrs(xdr, arg->u.attrs, arg->server); |
1157 | break; | |
1158 | default: | |
34558513 | 1159 | *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); |
05d564fe | 1160 | encode_nfs4_verifier(xdr, &arg->u.verifier); |
1da177e4 LT |
1161 | } |
1162 | } | |
1163 | ||
1164 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1165 | { | |
8687b63a | 1166 | __be32 *p; |
1da177e4 | 1167 | |
13c65ce9 | 1168 | p = reserve_space(xdr, 4); |
1da177e4 | 1169 | switch (arg->open_flags & O_CREAT) { |
05d564fe | 1170 | case 0: |
34558513 | 1171 | *p = cpu_to_be32(NFS4_OPEN_NOCREATE); |
05d564fe AA |
1172 | break; |
1173 | default: | |
1174 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); | |
34558513 | 1175 | *p = cpu_to_be32(NFS4_OPEN_CREATE); |
05d564fe | 1176 | encode_createmode(xdr, arg); |
1da177e4 LT |
1177 | } |
1178 | } | |
1179 | ||
bd7bf9d5 | 1180 | static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) |
1da177e4 | 1181 | { |
8687b63a | 1182 | __be32 *p; |
1da177e4 | 1183 | |
13c65ce9 | 1184 | p = reserve_space(xdr, 4); |
1da177e4 | 1185 | switch (delegation_type) { |
05d564fe | 1186 | case 0: |
34558513 | 1187 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); |
05d564fe AA |
1188 | break; |
1189 | case FMODE_READ: | |
34558513 | 1190 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); |
05d564fe AA |
1191 | break; |
1192 | case FMODE_WRITE|FMODE_READ: | |
34558513 | 1193 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); |
05d564fe AA |
1194 | break; |
1195 | default: | |
1196 | BUG(); | |
1da177e4 LT |
1197 | } |
1198 | } | |
1199 | ||
1200 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) | |
1201 | { | |
8687b63a | 1202 | __be32 *p; |
1da177e4 | 1203 | |
13c65ce9 | 1204 | p = reserve_space(xdr, 4); |
34558513 | 1205 | *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); |
1da177e4 LT |
1206 | encode_string(xdr, name->len, name->name); |
1207 | } | |
1208 | ||
bd7bf9d5 | 1209 | static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) |
1da177e4 | 1210 | { |
8687b63a | 1211 | __be32 *p; |
1da177e4 | 1212 | |
13c65ce9 | 1213 | p = reserve_space(xdr, 4); |
34558513 | 1214 | *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); |
1da177e4 LT |
1215 | encode_delegation_type(xdr, type); |
1216 | } | |
1217 | ||
1218 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) | |
1219 | { | |
8687b63a | 1220 | __be32 *p; |
1da177e4 | 1221 | |
13c65ce9 | 1222 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1223 | *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
34558513 | 1224 | xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1225 | encode_string(xdr, name->len, name->name); |
1226 | } | |
1227 | ||
cf8cdbe5 | 1228 | static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) |
1da177e4 LT |
1229 | { |
1230 | encode_openhdr(xdr, arg); | |
1231 | encode_opentype(xdr, arg); | |
1232 | switch (arg->claim) { | |
05d564fe AA |
1233 | case NFS4_OPEN_CLAIM_NULL: |
1234 | encode_claim_null(xdr, arg->name); | |
1235 | break; | |
1236 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
1237 | encode_claim_previous(xdr, arg->u.delegation_type); | |
1238 | break; | |
1239 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: | |
1240 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); | |
1241 | break; | |
1242 | default: | |
1243 | BUG(); | |
1da177e4 | 1244 | } |
d017931c | 1245 | hdr->nops++; |
dadf0c27 | 1246 | hdr->replen += decode_open_maxsz; |
1da177e4 LT |
1247 | } |
1248 | ||
cf8cdbe5 | 1249 | static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1250 | { |
8687b63a | 1251 | __be32 *p; |
1da177e4 | 1252 | |
13c65ce9 | 1253 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); |
e75bc1c8 | 1254 | *p++ = cpu_to_be32(OP_OPEN_CONFIRM); |
93f0cf25 | 1255 | p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1256 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
d017931c | 1257 | hdr->nops++; |
dadf0c27 | 1258 | hdr->replen += decode_open_confirm_maxsz; |
1da177e4 LT |
1259 | } |
1260 | ||
cf8cdbe5 | 1261 | static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1262 | { |
8687b63a | 1263 | __be32 *p; |
1da177e4 | 1264 | |
13c65ce9 | 1265 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); |
e75bc1c8 | 1266 | *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); |
93f0cf25 | 1267 | p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1268 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
dc0b027d | 1269 | encode_share_access(xdr, arg->fmode); |
d017931c | 1270 | hdr->nops++; |
dadf0c27 | 1271 | hdr->replen += decode_open_downgrade_maxsz; |
1da177e4 LT |
1272 | } |
1273 | ||
cf8cdbe5 | 1274 | static void |
d017931c | 1275 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) |
1da177e4 LT |
1276 | { |
1277 | int len = fh->size; | |
8687b63a | 1278 | __be32 *p; |
1da177e4 | 1279 | |
13c65ce9 | 1280 | p = reserve_space(xdr, 8 + len); |
e75bc1c8 BH |
1281 | *p++ = cpu_to_be32(OP_PUTFH); |
1282 | *p++ = cpu_to_be32(len); | |
34558513 | 1283 | xdr_encode_opaque_fixed(p, fh->data, len); |
d017931c | 1284 | hdr->nops++; |
dadf0c27 | 1285 | hdr->replen += decode_putfh_maxsz; |
1da177e4 LT |
1286 | } |
1287 | ||
cf8cdbe5 | 1288 | static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1289 | { |
05d564fe | 1290 | __be32 *p; |
6c0195a4 | 1291 | |
13c65ce9 | 1292 | p = reserve_space(xdr, 4); |
34558513 | 1293 | *p = cpu_to_be32(OP_PUTROOTFH); |
d017931c | 1294 | hdr->nops++; |
dadf0c27 | 1295 | hdr->replen += decode_putrootfh_maxsz; |
1da177e4 LT |
1296 | } |
1297 | ||
1298 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) | |
1299 | { | |
1da177e4 | 1300 | nfs4_stateid stateid; |
8687b63a | 1301 | __be32 *p; |
1da177e4 | 1302 | |
13c65ce9 | 1303 | p = reserve_space(xdr, NFS4_STATEID_SIZE); |
1da177e4 LT |
1304 | if (ctx->state != NULL) { |
1305 | nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); | |
34558513 | 1306 | xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); |
1da177e4 | 1307 | } else |
34558513 | 1308 | xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1309 | } |
1310 | ||
cf8cdbe5 | 1311 | static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) |
1da177e4 | 1312 | { |
8687b63a | 1313 | __be32 *p; |
1da177e4 | 1314 | |
13c65ce9 | 1315 | p = reserve_space(xdr, 4); |
34558513 | 1316 | *p = cpu_to_be32(OP_READ); |
1da177e4 LT |
1317 | |
1318 | encode_stateid(xdr, args->context); | |
1319 | ||
13c65ce9 | 1320 | p = reserve_space(xdr, 12); |
b95be5a9 | 1321 | p = xdr_encode_hyper(p, args->offset); |
34558513 | 1322 | *p = cpu_to_be32(args->count); |
d017931c | 1323 | hdr->nops++; |
dadf0c27 | 1324 | hdr->replen += decode_read_maxsz; |
1da177e4 LT |
1325 | } |
1326 | ||
cf8cdbe5 | 1327 | static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1328 | { |
97d312d0 MN |
1329 | uint32_t attrs[2] = { |
1330 | FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, | |
1331 | FATTR4_WORD1_MOUNTED_ON_FILEID, | |
1332 | }; | |
8687b63a | 1333 | __be32 *p; |
1da177e4 | 1334 | |
13c65ce9 | 1335 | p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); |
e75bc1c8 | 1336 | *p++ = cpu_to_be32(OP_READDIR); |
b95be5a9 | 1337 | p = xdr_encode_hyper(p, readdir->cookie); |
93f0cf25 | 1338 | p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); |
e75bc1c8 BH |
1339 | *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */ |
1340 | *p++ = cpu_to_be32(readdir->count); | |
1341 | *p++ = cpu_to_be32(2); | |
97d312d0 MN |
1342 | /* Switch to mounted_on_fileid if the server supports it */ |
1343 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) | |
1344 | attrs[0] &= ~FATTR4_WORD0_FILEID; | |
1345 | else | |
1346 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
e75bc1c8 | 1347 | *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); |
34558513 | 1348 | *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); |
d017931c | 1349 | hdr->nops++; |
dadf0c27 | 1350 | hdr->replen += decode_readdir_maxsz; |
44109241 FI |
1351 | dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", |
1352 | __func__, | |
eadf4598 TM |
1353 | (unsigned long long)readdir->cookie, |
1354 | ((u32 *)readdir->verifier.data)[0], | |
1355 | ((u32 *)readdir->verifier.data)[1], | |
1356 | attrs[0] & readdir->bitmask[0], | |
1357 | attrs[1] & readdir->bitmask[1]); | |
1da177e4 LT |
1358 | } |
1359 | ||
cf8cdbe5 | 1360 | static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1361 | { |
8687b63a | 1362 | __be32 *p; |
1da177e4 | 1363 | |
13c65ce9 | 1364 | p = reserve_space(xdr, 4); |
34558513 | 1365 | *p = cpu_to_be32(OP_READLINK); |
d017931c | 1366 | hdr->nops++; |
dadf0c27 | 1367 | hdr->replen += decode_readlink_maxsz; |
1da177e4 LT |
1368 | } |
1369 | ||
cf8cdbe5 | 1370 | static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1371 | { |
8687b63a | 1372 | __be32 *p; |
1da177e4 | 1373 | |
13c65ce9 | 1374 | p = reserve_space(xdr, 8 + name->len); |
e75bc1c8 BH |
1375 | *p++ = cpu_to_be32(OP_REMOVE); |
1376 | *p++ = cpu_to_be32(name->len); | |
34558513 | 1377 | xdr_encode_opaque_fixed(p, name->name, name->len); |
d017931c | 1378 | hdr->nops++; |
dadf0c27 | 1379 | hdr->replen += decode_remove_maxsz; |
1da177e4 LT |
1380 | } |
1381 | ||
cf8cdbe5 | 1382 | static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) |
1da177e4 | 1383 | { |
8687b63a | 1384 | __be32 *p; |
1da177e4 | 1385 | |
13c65ce9 | 1386 | p = reserve_space(xdr, 8 + oldname->len); |
e75bc1c8 BH |
1387 | *p++ = cpu_to_be32(OP_RENAME); |
1388 | *p++ = cpu_to_be32(oldname->len); | |
34558513 | 1389 | xdr_encode_opaque_fixed(p, oldname->name, oldname->len); |
6c0195a4 | 1390 | |
13c65ce9 | 1391 | p = reserve_space(xdr, 4 + newname->len); |
e75bc1c8 | 1392 | *p++ = cpu_to_be32(newname->len); |
34558513 | 1393 | xdr_encode_opaque_fixed(p, newname->name, newname->len); |
d017931c | 1394 | hdr->nops++; |
dadf0c27 | 1395 | hdr->replen += decode_rename_maxsz; |
1da177e4 LT |
1396 | } |
1397 | ||
cf8cdbe5 | 1398 | static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) |
1da177e4 | 1399 | { |
8687b63a | 1400 | __be32 *p; |
1da177e4 | 1401 | |
13c65ce9 | 1402 | p = reserve_space(xdr, 12); |
e75bc1c8 | 1403 | *p++ = cpu_to_be32(OP_RENEW); |
34558513 | 1404 | xdr_encode_hyper(p, client_stateid->cl_clientid); |
d017931c | 1405 | hdr->nops++; |
dadf0c27 | 1406 | hdr->replen += decode_renew_maxsz; |
1da177e4 LT |
1407 | } |
1408 | ||
cf8cdbe5 | 1409 | static void |
d017931c | 1410 | encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
56ae19f3 | 1411 | { |
8687b63a | 1412 | __be32 *p; |
56ae19f3 | 1413 | |
13c65ce9 | 1414 | p = reserve_space(xdr, 4); |
34558513 | 1415 | *p = cpu_to_be32(OP_RESTOREFH); |
d017931c | 1416 | hdr->nops++; |
dadf0c27 | 1417 | hdr->replen += decode_restorefh_maxsz; |
56ae19f3 TM |
1418 | } |
1419 | ||
23ec6965 | 1420 | static int |
d017931c | 1421 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) |
23ec6965 | 1422 | { |
8687b63a | 1423 | __be32 *p; |
23ec6965 | 1424 | |
13c65ce9 | 1425 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1426 | *p++ = cpu_to_be32(OP_SETATTR); |
34558513 | 1427 | xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); |
13c65ce9 | 1428 | p = reserve_space(xdr, 2*4); |
e75bc1c8 | 1429 | *p++ = cpu_to_be32(1); |
34558513 | 1430 | *p = cpu_to_be32(FATTR4_WORD0_ACL); |
23ec6965 BF |
1431 | if (arg->acl_len % 4) |
1432 | return -EINVAL; | |
13c65ce9 | 1433 | p = reserve_space(xdr, 4); |
34558513 | 1434 | *p = cpu_to_be32(arg->acl_len); |
23ec6965 | 1435 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); |
d017931c | 1436 | hdr->nops++; |
dadf0c27 | 1437 | hdr->replen += decode_setacl_maxsz; |
23ec6965 BF |
1438 | return 0; |
1439 | } | |
1440 | ||
cf8cdbe5 | 1441 | static void |
d017931c | 1442 | encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1443 | { |
8687b63a | 1444 | __be32 *p; |
1da177e4 | 1445 | |
13c65ce9 | 1446 | p = reserve_space(xdr, 4); |
34558513 | 1447 | *p = cpu_to_be32(OP_SAVEFH); |
d017931c | 1448 | hdr->nops++; |
dadf0c27 | 1449 | hdr->replen += decode_savefh_maxsz; |
1da177e4 LT |
1450 | } |
1451 | ||
cf8cdbe5 | 1452 | static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) |
1da177e4 | 1453 | { |
8687b63a | 1454 | __be32 *p; |
6c0195a4 | 1455 | |
13c65ce9 | 1456 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1457 | *p++ = cpu_to_be32(OP_SETATTR); |
34558513 | 1458 | xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); |
d017931c | 1459 | hdr->nops++; |
dadf0c27 | 1460 | hdr->replen += decode_setattr_maxsz; |
cf8cdbe5 | 1461 | encode_attrs(xdr, arg->iap, server); |
1da177e4 LT |
1462 | } |
1463 | ||
cf8cdbe5 | 1464 | static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) |
1da177e4 | 1465 | { |
8687b63a | 1466 | __be32 *p; |
1da177e4 | 1467 | |
13c65ce9 | 1468 | p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); |
e75bc1c8 | 1469 | *p++ = cpu_to_be32(OP_SETCLIENTID); |
34558513 | 1470 | xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1471 | |
1472 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); | |
13c65ce9 | 1473 | p = reserve_space(xdr, 4); |
34558513 | 1474 | *p = cpu_to_be32(setclientid->sc_prog); |
1da177e4 LT |
1475 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); |
1476 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); | |
13c65ce9 | 1477 | p = reserve_space(xdr, 4); |
34558513 | 1478 | *p = cpu_to_be32(setclientid->sc_cb_ident); |
d017931c | 1479 | hdr->nops++; |
dadf0c27 | 1480 | hdr->replen += decode_setclientid_maxsz; |
1da177e4 LT |
1481 | } |
1482 | ||
cf8cdbe5 | 1483 | static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) |
1da177e4 | 1484 | { |
05d564fe | 1485 | __be32 *p; |
1da177e4 | 1486 | |
13c65ce9 | 1487 | p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); |
e75bc1c8 | 1488 | *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); |
b95be5a9 | 1489 | p = xdr_encode_hyper(p, client_state->cl_clientid); |
34558513 | 1490 | xdr_encode_opaque_fixed(p, client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); |
d017931c | 1491 | hdr->nops++; |
dadf0c27 | 1492 | hdr->replen += decode_setclientid_confirm_maxsz; |
1da177e4 LT |
1493 | } |
1494 | ||
cf8cdbe5 | 1495 | static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 1496 | { |
8687b63a | 1497 | __be32 *p; |
1da177e4 | 1498 | |
13c65ce9 | 1499 | p = reserve_space(xdr, 4); |
34558513 | 1500 | *p = cpu_to_be32(OP_WRITE); |
1da177e4 LT |
1501 | |
1502 | encode_stateid(xdr, args->context); | |
1503 | ||
13c65ce9 | 1504 | p = reserve_space(xdr, 16); |
b95be5a9 | 1505 | p = xdr_encode_hyper(p, args->offset); |
e75bc1c8 | 1506 | *p++ = cpu_to_be32(args->stable); |
34558513 | 1507 | *p = cpu_to_be32(args->count); |
1da177e4 LT |
1508 | |
1509 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); | |
d017931c | 1510 | hdr->nops++; |
dadf0c27 | 1511 | hdr->replen += decode_write_maxsz; |
1da177e4 LT |
1512 | } |
1513 | ||
cf8cdbe5 | 1514 | static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) |
1da177e4 | 1515 | { |
8687b63a | 1516 | __be32 *p; |
1da177e4 | 1517 | |
13c65ce9 | 1518 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
1da177e4 | 1519 | |
e75bc1c8 | 1520 | *p++ = cpu_to_be32(OP_DELEGRETURN); |
34558513 | 1521 | xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); |
d017931c | 1522 | hdr->nops++; |
dadf0c27 | 1523 | hdr->replen += decode_delegreturn_maxsz; |
1da177e4 | 1524 | } |
9b7b9fcc | 1525 | |
99fe60d0 | 1526 | #if defined(CONFIG_NFS_V4_1) |
9b7b9fcc | 1527 | /* NFSv4.1 operations */ |
99fe60d0 BH |
1528 | static void encode_exchange_id(struct xdr_stream *xdr, |
1529 | struct nfs41_exchange_id_args *args, | |
1530 | struct compound_hdr *hdr) | |
1531 | { | |
1532 | __be32 *p; | |
1533 | ||
13c65ce9 | 1534 | p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); |
e75bc1c8 | 1535 | *p++ = cpu_to_be32(OP_EXCHANGE_ID); |
34558513 | 1536 | xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); |
99fe60d0 BH |
1537 | |
1538 | encode_string(xdr, args->id_len, args->id); | |
1539 | ||
13c65ce9 | 1540 | p = reserve_space(xdr, 12); |
e75bc1c8 BH |
1541 | *p++ = cpu_to_be32(args->flags); |
1542 | *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ | |
34558513 | 1543 | *p = cpu_to_be32(0); /* zero length implementation id array */ |
99fe60d0 BH |
1544 | hdr->nops++; |
1545 | hdr->replen += decode_exchange_id_maxsz; | |
1546 | } | |
fc931582 AA |
1547 | |
1548 | static void encode_create_session(struct xdr_stream *xdr, | |
1549 | struct nfs41_create_session_args *args, | |
1550 | struct compound_hdr *hdr) | |
1551 | { | |
1552 | __be32 *p; | |
1553 | char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; | |
1554 | uint32_t len; | |
1555 | struct nfs_client *clp = args->client; | |
1556 | ||
42edd698 BH |
1557 | len = scnprintf(machine_name, sizeof(machine_name), "%s", |
1558 | clp->cl_ipaddr); | |
fc931582 | 1559 | |
13c65ce9 | 1560 | p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); |
42edd698 | 1561 | *p++ = cpu_to_be32(OP_CREATE_SESSION); |
b95be5a9 | 1562 | p = xdr_encode_hyper(p, clp->cl_ex_clid); |
e75bc1c8 BH |
1563 | *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ |
1564 | *p++ = cpu_to_be32(args->flags); /*flags */ | |
fc931582 | 1565 | |
fc931582 | 1566 | /* Fore Channel */ |
e75bc1c8 BH |
1567 | *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ |
1568 | *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ | |
1569 | *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ | |
1570 | *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */ | |
1571 | *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ | |
1572 | *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ | |
1573 | *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ | |
fc931582 AA |
1574 | |
1575 | /* Back Channel */ | |
e75bc1c8 BH |
1576 | *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ |
1577 | *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ | |
1578 | *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ | |
1579 | *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ | |
1580 | *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ | |
1581 | *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ | |
1582 | *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ | |
fc931582 | 1583 | |
e75bc1c8 | 1584 | *p++ = cpu_to_be32(args->cb_program); /* cb_program */ |
e75bc1c8 | 1585 | *p++ = cpu_to_be32(1); |
e75bc1c8 | 1586 | *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ |
fc931582 AA |
1587 | |
1588 | /* authsys_parms rfc1831 */ | |
e75bc1c8 | 1589 | *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ |
e75bc1c8 | 1590 | *p++ = cpu_to_be32(len); |
93f0cf25 | 1591 | p = xdr_encode_opaque_fixed(p, machine_name, len); |
e75bc1c8 BH |
1592 | *p++ = cpu_to_be32(0); /* UID */ |
1593 | *p++ = cpu_to_be32(0); /* GID */ | |
34558513 | 1594 | *p = cpu_to_be32(0); /* No more gids */ |
fc931582 AA |
1595 | hdr->nops++; |
1596 | hdr->replen += decode_create_session_maxsz; | |
1597 | } | |
0f3e66c6 AA |
1598 | |
1599 | static void encode_destroy_session(struct xdr_stream *xdr, | |
1600 | struct nfs4_session *session, | |
1601 | struct compound_hdr *hdr) | |
1602 | { | |
1603 | __be32 *p; | |
13c65ce9 | 1604 | p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); |
e75bc1c8 | 1605 | *p++ = cpu_to_be32(OP_DESTROY_SESSION); |
34558513 | 1606 | xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); |
0f3e66c6 AA |
1607 | hdr->nops++; |
1608 | hdr->replen += decode_destroy_session_maxsz; | |
1609 | } | |
99fe60d0 BH |
1610 | #endif /* CONFIG_NFS_V4_1 */ |
1611 | ||
9b7b9fcc AA |
1612 | static void encode_sequence(struct xdr_stream *xdr, |
1613 | const struct nfs4_sequence_args *args, | |
1614 | struct compound_hdr *hdr) | |
1615 | { | |
1616 | #if defined(CONFIG_NFS_V4_1) | |
1617 | struct nfs4_session *session = args->sa_session; | |
fc01cea9 AA |
1618 | struct nfs4_slot_table *tp; |
1619 | struct nfs4_slot *slot; | |
1620 | __be32 *p; | |
9b7b9fcc AA |
1621 | |
1622 | if (!session) | |
1623 | return; | |
1624 | ||
fc01cea9 AA |
1625 | tp = &session->fc_slot_table; |
1626 | ||
1627 | WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); | |
1628 | slot = tp->slots + args->sa_slotid; | |
1629 | ||
13c65ce9 | 1630 | p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); |
e75bc1c8 | 1631 | *p++ = cpu_to_be32(OP_SEQUENCE); |
fc01cea9 AA |
1632 | |
1633 | /* | |
1634 | * Sessionid + seqid + slotid + max slotid + cache_this | |
1635 | */ | |
1636 | dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " | |
1637 | "max_slotid=%d cache_this=%d\n", | |
1638 | __func__, | |
1639 | ((u32 *)session->sess_id.data)[0], | |
1640 | ((u32 *)session->sess_id.data)[1], | |
1641 | ((u32 *)session->sess_id.data)[2], | |
1642 | ((u32 *)session->sess_id.data)[3], | |
1643 | slot->seq_nr, args->sa_slotid, | |
1644 | tp->highest_used_slotid, args->sa_cache_this); | |
93f0cf25 | 1645 | p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); |
e75bc1c8 BH |
1646 | *p++ = cpu_to_be32(slot->seq_nr); |
1647 | *p++ = cpu_to_be32(args->sa_slotid); | |
1648 | *p++ = cpu_to_be32(tp->highest_used_slotid); | |
34558513 | 1649 | *p = cpu_to_be32(args->sa_cache_this); |
9b7b9fcc AA |
1650 | hdr->nops++; |
1651 | hdr->replen += decode_sequence_maxsz; | |
1652 | #endif /* CONFIG_NFS_V4_1 */ | |
1653 | } | |
1654 | ||
1da177e4 LT |
1655 | /* |
1656 | * END OF "GENERIC" ENCODE ROUTINES. | |
1657 | */ | |
1658 | ||
66cc0429 BH |
1659 | static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) |
1660 | { | |
1661 | #if defined(CONFIG_NFS_V4_1) | |
1662 | if (args->sa_session) | |
1663 | return args->sa_session->clp->cl_minorversion; | |
1664 | #endif /* CONFIG_NFS_V4_1 */ | |
1665 | return 0; | |
1666 | } | |
1667 | ||
1da177e4 LT |
1668 | /* |
1669 | * Encode an ACCESS request | |
1670 | */ | |
8687b63a | 1671 | static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) |
1da177e4 LT |
1672 | { |
1673 | struct xdr_stream xdr; | |
1674 | struct compound_hdr hdr = { | |
66cc0429 | 1675 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1676 | }; |
1da177e4 LT |
1677 | |
1678 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1679 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1680 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1681 | encode_putfh(&xdr, args->fh, &hdr); |
1682 | encode_access(&xdr, args->access, &hdr); | |
1683 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1684 | encode_nops(&hdr); |
cf8cdbe5 | 1685 | return 0; |
1da177e4 LT |
1686 | } |
1687 | ||
1688 | /* | |
1689 | * Encode LOOKUP request | |
1690 | */ | |
8687b63a | 1691 | static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) |
1da177e4 LT |
1692 | { |
1693 | struct xdr_stream xdr; | |
1694 | struct compound_hdr hdr = { | |
66cc0429 | 1695 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1696 | }; |
1da177e4 LT |
1697 | |
1698 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1699 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1700 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1701 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1702 | encode_lookup(&xdr, args->name, &hdr); | |
1703 | encode_getfh(&xdr, &hdr); | |
1704 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1705 | encode_nops(&hdr); |
cf8cdbe5 | 1706 | return 0; |
1da177e4 LT |
1707 | } |
1708 | ||
1709 | /* | |
1710 | * Encode LOOKUP_ROOT request | |
1711 | */ | |
8687b63a | 1712 | static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) |
1da177e4 LT |
1713 | { |
1714 | struct xdr_stream xdr; | |
1715 | struct compound_hdr hdr = { | |
66cc0429 | 1716 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1717 | }; |
1da177e4 LT |
1718 | |
1719 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1720 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1721 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1722 | encode_putrootfh(&xdr, &hdr); |
1723 | encode_getfh(&xdr, &hdr); | |
1724 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1725 | encode_nops(&hdr); |
cf8cdbe5 | 1726 | return 0; |
1da177e4 LT |
1727 | } |
1728 | ||
1729 | /* | |
1730 | * Encode REMOVE request | |
1731 | */ | |
4fdc17b2 | 1732 | static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) |
1da177e4 LT |
1733 | { |
1734 | struct xdr_stream xdr; | |
1735 | struct compound_hdr hdr = { | |
66cc0429 | 1736 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1737 | }; |
1da177e4 LT |
1738 | |
1739 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1740 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1741 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1742 | encode_putfh(&xdr, args->fh, &hdr); |
1743 | encode_remove(&xdr, &args->name, &hdr); | |
1744 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1745 | encode_nops(&hdr); |
cf8cdbe5 | 1746 | return 0; |
1da177e4 LT |
1747 | } |
1748 | ||
1749 | /* | |
1750 | * Encode RENAME request | |
1751 | */ | |
8687b63a | 1752 | static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) |
1da177e4 LT |
1753 | { |
1754 | struct xdr_stream xdr; | |
1755 | struct compound_hdr hdr = { | |
66cc0429 | 1756 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1757 | }; |
1da177e4 LT |
1758 | |
1759 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1760 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1761 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1762 | encode_putfh(&xdr, args->old_dir, &hdr); |
1763 | encode_savefh(&xdr, &hdr); | |
1764 | encode_putfh(&xdr, args->new_dir, &hdr); | |
1765 | encode_rename(&xdr, args->old_name, args->new_name, &hdr); | |
1766 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1767 | encode_restorefh(&xdr, &hdr); | |
1768 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1769 | encode_nops(&hdr); |
cf8cdbe5 | 1770 | return 0; |
1da177e4 LT |
1771 | } |
1772 | ||
1773 | /* | |
1774 | * Encode LINK request | |
1775 | */ | |
8687b63a | 1776 | static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) |
1da177e4 LT |
1777 | { |
1778 | struct xdr_stream xdr; | |
1779 | struct compound_hdr hdr = { | |
66cc0429 | 1780 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1781 | }; |
1da177e4 LT |
1782 | |
1783 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1784 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1785 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1786 | encode_putfh(&xdr, args->fh, &hdr); |
1787 | encode_savefh(&xdr, &hdr); | |
1788 | encode_putfh(&xdr, args->dir_fh, &hdr); | |
1789 | encode_link(&xdr, args->name, &hdr); | |
1790 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1791 | encode_restorefh(&xdr, &hdr); | |
1792 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1793 | encode_nops(&hdr); |
cf8cdbe5 | 1794 | return 0; |
1da177e4 LT |
1795 | } |
1796 | ||
1797 | /* | |
1798 | * Encode CREATE request | |
1799 | */ | |
8687b63a | 1800 | static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1801 | { |
1802 | struct xdr_stream xdr; | |
1803 | struct compound_hdr hdr = { | |
66cc0429 | 1804 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1805 | }; |
1da177e4 LT |
1806 | |
1807 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1808 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1809 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1810 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1811 | encode_savefh(&xdr, &hdr); | |
1812 | encode_create(&xdr, args, &hdr); | |
1813 | encode_getfh(&xdr, &hdr); | |
1814 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1815 | encode_restorefh(&xdr, &hdr); | |
1816 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1817 | encode_nops(&hdr); |
cf8cdbe5 | 1818 | return 0; |
1da177e4 LT |
1819 | } |
1820 | ||
1821 | /* | |
1822 | * Encode SYMLINK request | |
1823 | */ | |
8687b63a | 1824 | static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1825 | { |
1826 | return nfs4_xdr_enc_create(req, p, args); | |
1827 | } | |
1828 | ||
1829 | /* | |
1830 | * Encode GETATTR request | |
1831 | */ | |
8687b63a | 1832 | static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) |
1da177e4 LT |
1833 | { |
1834 | struct xdr_stream xdr; | |
1835 | struct compound_hdr hdr = { | |
66cc0429 | 1836 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1837 | }; |
1da177e4 LT |
1838 | |
1839 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1840 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1841 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1842 | encode_putfh(&xdr, args->fh, &hdr); |
1843 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1844 | encode_nops(&hdr); |
cf8cdbe5 | 1845 | return 0; |
1da177e4 LT |
1846 | } |
1847 | ||
1848 | /* | |
1849 | * Encode a CLOSE request | |
1850 | */ | |
8687b63a | 1851 | static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 | 1852 | { |
05d564fe AA |
1853 | struct xdr_stream xdr; |
1854 | struct compound_hdr hdr = { | |
66cc0429 | 1855 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 1856 | }; |
05d564fe AA |
1857 | |
1858 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1859 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1860 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1861 | encode_putfh(&xdr, args->fh, &hdr); |
1862 | encode_close(&xdr, args, &hdr); | |
1863 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1864 | encode_nops(&hdr); |
cf8cdbe5 | 1865 | return 0; |
1da177e4 LT |
1866 | } |
1867 | ||
1868 | /* | |
1869 | * Encode an OPEN request | |
1870 | */ | |
8687b63a | 1871 | static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1872 | { |
1873 | struct xdr_stream xdr; | |
1874 | struct compound_hdr hdr = { | |
66cc0429 | 1875 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1876 | }; |
1da177e4 LT |
1877 | |
1878 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1879 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1880 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1881 | encode_putfh(&xdr, args->fh, &hdr); |
1882 | encode_savefh(&xdr, &hdr); | |
1883 | encode_open(&xdr, args, &hdr); | |
1884 | encode_getfh(&xdr, &hdr); | |
1885 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1886 | encode_restorefh(&xdr, &hdr); | |
1887 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1888 | encode_nops(&hdr); |
cf8cdbe5 | 1889 | return 0; |
1da177e4 LT |
1890 | } |
1891 | ||
1892 | /* | |
1893 | * Encode an OPEN_CONFIRM request | |
1894 | */ | |
8687b63a | 1895 | static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) |
1da177e4 LT |
1896 | { |
1897 | struct xdr_stream xdr; | |
1898 | struct compound_hdr hdr = { | |
d017931c | 1899 | .nops = 0, |
1da177e4 | 1900 | }; |
1da177e4 LT |
1901 | |
1902 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1903 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1904 | encode_putfh(&xdr, args->fh, &hdr); |
1905 | encode_open_confirm(&xdr, args, &hdr); | |
d017931c | 1906 | encode_nops(&hdr); |
cf8cdbe5 | 1907 | return 0; |
1da177e4 LT |
1908 | } |
1909 | ||
1910 | /* | |
1911 | * Encode an OPEN request with no attributes. | |
1912 | */ | |
8687b63a | 1913 | static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1914 | { |
1915 | struct xdr_stream xdr; | |
1916 | struct compound_hdr hdr = { | |
66cc0429 | 1917 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1918 | }; |
1da177e4 LT |
1919 | |
1920 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1921 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1922 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1923 | encode_putfh(&xdr, args->fh, &hdr); |
1924 | encode_open(&xdr, args, &hdr); | |
1925 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1926 | encode_nops(&hdr); |
cf8cdbe5 | 1927 | return 0; |
1da177e4 LT |
1928 | } |
1929 | ||
1930 | /* | |
1931 | * Encode an OPEN_DOWNGRADE request | |
1932 | */ | |
8687b63a | 1933 | static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 LT |
1934 | { |
1935 | struct xdr_stream xdr; | |
1936 | struct compound_hdr hdr = { | |
66cc0429 | 1937 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1938 | }; |
1da177e4 LT |
1939 | |
1940 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1941 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1942 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1943 | encode_putfh(&xdr, args->fh, &hdr); |
1944 | encode_open_downgrade(&xdr, args, &hdr); | |
1945 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1946 | encode_nops(&hdr); |
cf8cdbe5 | 1947 | return 0; |
1da177e4 LT |
1948 | } |
1949 | ||
1950 | /* | |
1951 | * Encode a LOCK request | |
1952 | */ | |
8687b63a | 1953 | static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) |
1da177e4 LT |
1954 | { |
1955 | struct xdr_stream xdr; | |
1956 | struct compound_hdr hdr = { | |
66cc0429 | 1957 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1958 | }; |
1da177e4 LT |
1959 | |
1960 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1961 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1962 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1963 | encode_putfh(&xdr, args->fh, &hdr); |
1964 | encode_lock(&xdr, args, &hdr); | |
d017931c | 1965 | encode_nops(&hdr); |
cf8cdbe5 | 1966 | return 0; |
1da177e4 LT |
1967 | } |
1968 | ||
1969 | /* | |
1970 | * Encode a LOCKT request | |
1971 | */ | |
8687b63a | 1972 | static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) |
1da177e4 LT |
1973 | { |
1974 | struct xdr_stream xdr; | |
1975 | struct compound_hdr hdr = { | |
66cc0429 | 1976 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1977 | }; |
1da177e4 LT |
1978 | |
1979 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1980 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1981 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1982 | encode_putfh(&xdr, args->fh, &hdr); |
1983 | encode_lockt(&xdr, args, &hdr); | |
d017931c | 1984 | encode_nops(&hdr); |
cf8cdbe5 | 1985 | return 0; |
1da177e4 LT |
1986 | } |
1987 | ||
1988 | /* | |
1989 | * Encode a LOCKU request | |
1990 | */ | |
8687b63a | 1991 | static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) |
1da177e4 LT |
1992 | { |
1993 | struct xdr_stream xdr; | |
1994 | struct compound_hdr hdr = { | |
66cc0429 | 1995 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1996 | }; |
1da177e4 LT |
1997 | |
1998 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1999 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2000 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2001 | encode_putfh(&xdr, args->fh, &hdr); |
2002 | encode_locku(&xdr, args, &hdr); | |
d017931c | 2003 | encode_nops(&hdr); |
cf8cdbe5 | 2004 | return 0; |
1da177e4 LT |
2005 | } |
2006 | ||
2007 | /* | |
2008 | * Encode a READLINK request | |
2009 | */ | |
8687b63a | 2010 | static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) |
1da177e4 LT |
2011 | { |
2012 | struct xdr_stream xdr; | |
2013 | struct compound_hdr hdr = { | |
66cc0429 | 2014 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2015 | }; |
1da177e4 LT |
2016 | |
2017 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2018 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2019 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2020 | encode_putfh(&xdr, args->fh, &hdr); |
2021 | encode_readlink(&xdr, args, req, &hdr); | |
e3a535e1 | 2022 | |
28f56694 | 2023 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
e3a535e1 | 2024 | args->pgbase, args->pglen); |
d017931c | 2025 | encode_nops(&hdr); |
cf8cdbe5 | 2026 | return 0; |
1da177e4 LT |
2027 | } |
2028 | ||
2029 | /* | |
2030 | * Encode a READDIR request | |
2031 | */ | |
8687b63a | 2032 | static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) |
1da177e4 LT |
2033 | { |
2034 | struct xdr_stream xdr; | |
2035 | struct compound_hdr hdr = { | |
66cc0429 | 2036 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2037 | }; |
1da177e4 LT |
2038 | |
2039 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2040 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2041 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2042 | encode_putfh(&xdr, args->fh, &hdr); |
2043 | encode_readdir(&xdr, args, req, &hdr); | |
d6ac02df | 2044 | |
28f56694 | 2045 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
d6ac02df TM |
2046 | args->pgbase, args->count); |
2047 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", | |
28f56694 | 2048 | __func__, hdr.replen << 2, args->pages, |
d6ac02df | 2049 | args->pgbase, args->count); |
d017931c | 2050 | encode_nops(&hdr); |
cf8cdbe5 | 2051 | return 0; |
1da177e4 LT |
2052 | } |
2053 | ||
2054 | /* | |
2055 | * Encode a READ request | |
2056 | */ | |
8687b63a | 2057 | static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) |
1da177e4 | 2058 | { |
1da177e4 LT |
2059 | struct xdr_stream xdr; |
2060 | struct compound_hdr hdr = { | |
66cc0429 | 2061 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2062 | }; |
1da177e4 LT |
2063 | |
2064 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2065 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2066 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2067 | encode_putfh(&xdr, args->fh, &hdr); |
2068 | encode_read(&xdr, args, &hdr); | |
1da177e4 | 2069 | |
28f56694 | 2070 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, |
1da177e4 | 2071 | args->pages, args->pgbase, args->count); |
4f22ccc3 | 2072 | req->rq_rcv_buf.flags |= XDRBUF_READ; |
d017931c | 2073 | encode_nops(&hdr); |
cf8cdbe5 | 2074 | return 0; |
1da177e4 LT |
2075 | } |
2076 | ||
2077 | /* | |
2078 | * Encode an SETATTR request | |
2079 | */ | |
8687b63a | 2080 | static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) |
1da177e4 | 2081 | { |
05d564fe AA |
2082 | struct xdr_stream xdr; |
2083 | struct compound_hdr hdr = { | |
66cc0429 | 2084 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 2085 | }; |
05d564fe AA |
2086 | |
2087 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2088 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2089 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2090 | encode_putfh(&xdr, args->fh, &hdr); |
2091 | encode_setattr(&xdr, args, args->server, &hdr); | |
2092 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2093 | encode_nops(&hdr); |
cf8cdbe5 | 2094 | return 0; |
1da177e4 LT |
2095 | } |
2096 | ||
029d105e BF |
2097 | /* |
2098 | * Encode a GETACL request | |
2099 | */ | |
2100 | static int | |
8687b63a | 2101 | nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, |
029d105e BF |
2102 | struct nfs_getaclargs *args) |
2103 | { | |
2104 | struct xdr_stream xdr; | |
029d105e | 2105 | struct compound_hdr hdr = { |
66cc0429 | 2106 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
029d105e | 2107 | }; |
28f56694 | 2108 | uint32_t replen; |
029d105e BF |
2109 | |
2110 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2111 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2112 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 | 2113 | encode_putfh(&xdr, args->fh, &hdr); |
28f56694 | 2114 | replen = hdr.replen + nfs4_fattr_bitmap_maxsz + 1; |
cf8cdbe5 AA |
2115 | encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); |
2116 | ||
28f56694 | 2117 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, |
029d105e | 2118 | args->acl_pages, args->acl_pgbase, args->acl_len); |
d017931c | 2119 | encode_nops(&hdr); |
cf8cdbe5 | 2120 | return 0; |
029d105e BF |
2121 | } |
2122 | ||
1da177e4 LT |
2123 | /* |
2124 | * Encode a WRITE request | |
2125 | */ | |
8687b63a | 2126 | static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
2127 | { |
2128 | struct xdr_stream xdr; | |
2129 | struct compound_hdr hdr = { | |
66cc0429 | 2130 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2131 | }; |
1da177e4 LT |
2132 | |
2133 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2134 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2135 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2136 | encode_putfh(&xdr, args->fh, &hdr); |
2137 | encode_write(&xdr, args, &hdr); | |
4f22ccc3 | 2138 | req->rq_snd_buf.flags |= XDRBUF_WRITE; |
cf8cdbe5 | 2139 | encode_getfattr(&xdr, args->bitmask, &hdr); |
d017931c | 2140 | encode_nops(&hdr); |
cf8cdbe5 | 2141 | return 0; |
1da177e4 LT |
2142 | } |
2143 | ||
2144 | /* | |
2145 | * a COMMIT request | |
2146 | */ | |
8687b63a | 2147 | static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
2148 | { |
2149 | struct xdr_stream xdr; | |
2150 | struct compound_hdr hdr = { | |
66cc0429 | 2151 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2152 | }; |
1da177e4 LT |
2153 | |
2154 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2155 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2156 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2157 | encode_putfh(&xdr, args->fh, &hdr); |
2158 | encode_commit(&xdr, args, &hdr); | |
2159 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2160 | encode_nops(&hdr); |
cf8cdbe5 | 2161 | return 0; |
1da177e4 LT |
2162 | } |
2163 | ||
2164 | /* | |
2165 | * FSINFO request | |
2166 | */ | |
8687b63a | 2167 | static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) |
1da177e4 LT |
2168 | { |
2169 | struct xdr_stream xdr; | |
2170 | struct compound_hdr hdr = { | |
66cc0429 | 2171 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2172 | }; |
1da177e4 LT |
2173 | |
2174 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2175 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2176 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2177 | encode_putfh(&xdr, args->fh, &hdr); |
2178 | encode_fsinfo(&xdr, args->bitmask, &hdr); | |
d017931c | 2179 | encode_nops(&hdr); |
cf8cdbe5 | 2180 | return 0; |
1da177e4 LT |
2181 | } |
2182 | ||
2183 | /* | |
2184 | * a PATHCONF request | |
2185 | */ | |
8687b63a | 2186 | static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) |
1da177e4 | 2187 | { |
1da177e4 LT |
2188 | struct xdr_stream xdr; |
2189 | struct compound_hdr hdr = { | |
66cc0429 | 2190 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2191 | }; |
1da177e4 LT |
2192 | |
2193 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2194 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2195 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2196 | encode_putfh(&xdr, args->fh, &hdr); |
2197 | encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], | |
2198 | &hdr); | |
d017931c | 2199 | encode_nops(&hdr); |
cf8cdbe5 | 2200 | return 0; |
1da177e4 LT |
2201 | } |
2202 | ||
2203 | /* | |
2204 | * a STATFS request | |
2205 | */ | |
8687b63a | 2206 | static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) |
1da177e4 | 2207 | { |
1da177e4 LT |
2208 | struct xdr_stream xdr; |
2209 | struct compound_hdr hdr = { | |
66cc0429 | 2210 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2211 | }; |
1da177e4 LT |
2212 | |
2213 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2214 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2215 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2216 | encode_putfh(&xdr, args->fh, &hdr); |
2217 | encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], | |
2218 | args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); | |
d017931c | 2219 | encode_nops(&hdr); |
cf8cdbe5 | 2220 | return 0; |
1da177e4 LT |
2221 | } |
2222 | ||
2223 | /* | |
2224 | * GETATTR_BITMAP request | |
2225 | */ | |
43652ad5 BH |
2226 | static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, |
2227 | struct nfs4_server_caps_arg *args) | |
1da177e4 LT |
2228 | { |
2229 | struct xdr_stream xdr; | |
2230 | struct compound_hdr hdr = { | |
66cc0429 | 2231 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2232 | }; |
1da177e4 LT |
2233 | |
2234 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2235 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2236 | encode_sequence(&xdr, &args->seq_args, &hdr); |
43652ad5 | 2237 | encode_putfh(&xdr, args->fhandle, &hdr); |
cf8cdbe5 AA |
2238 | encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| |
2239 | FATTR4_WORD0_LINK_SUPPORT| | |
2240 | FATTR4_WORD0_SYMLINK_SUPPORT| | |
2241 | FATTR4_WORD0_ACLSUPPORT, &hdr); | |
d017931c | 2242 | encode_nops(&hdr); |
cf8cdbe5 | 2243 | return 0; |
1da177e4 LT |
2244 | } |
2245 | ||
2246 | /* | |
2247 | * a RENEW request | |
2248 | */ | |
8687b63a | 2249 | static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2250 | { |
2251 | struct xdr_stream xdr; | |
2252 | struct compound_hdr hdr = { | |
d017931c | 2253 | .nops = 0, |
1da177e4 LT |
2254 | }; |
2255 | ||
2256 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2257 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 2258 | encode_renew(&xdr, clp, &hdr); |
d017931c | 2259 | encode_nops(&hdr); |
cf8cdbe5 | 2260 | return 0; |
1da177e4 LT |
2261 | } |
2262 | ||
2263 | /* | |
2264 | * a SETCLIENTID request | |
2265 | */ | |
8687b63a | 2266 | static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) |
1da177e4 LT |
2267 | { |
2268 | struct xdr_stream xdr; | |
2269 | struct compound_hdr hdr = { | |
d017931c | 2270 | .nops = 0, |
1da177e4 LT |
2271 | }; |
2272 | ||
2273 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2274 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 2275 | encode_setclientid(&xdr, sc, &hdr); |
d017931c | 2276 | encode_nops(&hdr); |
cf8cdbe5 | 2277 | return 0; |
1da177e4 LT |
2278 | } |
2279 | ||
2280 | /* | |
2281 | * a SETCLIENTID_CONFIRM request | |
2282 | */ | |
8687b63a | 2283 | static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2284 | { |
2285 | struct xdr_stream xdr; | |
2286 | struct compound_hdr hdr = { | |
d017931c | 2287 | .nops = 0, |
1da177e4 LT |
2288 | }; |
2289 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
1da177e4 LT |
2290 | |
2291 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2292 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
2293 | encode_setclientid_confirm(&xdr, clp, &hdr); |
2294 | encode_putrootfh(&xdr, &hdr); | |
2295 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
d017931c | 2296 | encode_nops(&hdr); |
cf8cdbe5 | 2297 | return 0; |
1da177e4 LT |
2298 | } |
2299 | ||
2300 | /* | |
2301 | * DELEGRETURN request | |
2302 | */ | |
8687b63a | 2303 | static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) |
1da177e4 LT |
2304 | { |
2305 | struct xdr_stream xdr; | |
2306 | struct compound_hdr hdr = { | |
66cc0429 | 2307 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2308 | }; |
1da177e4 LT |
2309 | |
2310 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2311 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2312 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2313 | encode_putfh(&xdr, args->fhandle, &hdr); |
2314 | encode_delegreturn(&xdr, args->stateid, &hdr); | |
2315 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2316 | encode_nops(&hdr); |
cf8cdbe5 | 2317 | return 0; |
1da177e4 LT |
2318 | } |
2319 | ||
683b57b4 TM |
2320 | /* |
2321 | * Encode FS_LOCATIONS request | |
2322 | */ | |
8687b63a | 2323 | static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) |
683b57b4 TM |
2324 | { |
2325 | struct xdr_stream xdr; | |
2326 | struct compound_hdr hdr = { | |
66cc0429 | 2327 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
683b57b4 | 2328 | }; |
28f56694 | 2329 | uint32_t replen; |
683b57b4 TM |
2330 | |
2331 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2332 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2333 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2334 | encode_putfh(&xdr, args->dir_fh, &hdr); |
2335 | encode_lookup(&xdr, args->name, &hdr); | |
28f56694 | 2336 | replen = hdr.replen; /* get the attribute into args->page */ |
cf8cdbe5 AA |
2337 | encode_fs_locations(&xdr, args->bitmask, &hdr); |
2338 | ||
28f56694 | 2339 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, |
683b57b4 | 2340 | 0, PAGE_SIZE); |
d017931c | 2341 | encode_nops(&hdr); |
cf8cdbe5 | 2342 | return 0; |
683b57b4 TM |
2343 | } |
2344 | ||
99fe60d0 BH |
2345 | #if defined(CONFIG_NFS_V4_1) |
2346 | /* | |
2347 | * EXCHANGE_ID request | |
2348 | */ | |
2349 | static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, | |
2350 | struct nfs41_exchange_id_args *args) | |
2351 | { | |
2352 | struct xdr_stream xdr; | |
2353 | struct compound_hdr hdr = { | |
2354 | .minorversion = args->client->cl_minorversion, | |
2355 | }; | |
2356 | ||
2357 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2358 | encode_compound_hdr(&xdr, req, &hdr); | |
2359 | encode_exchange_id(&xdr, args, &hdr); | |
2360 | encode_nops(&hdr); | |
2361 | return 0; | |
2362 | } | |
2050f0cc | 2363 | |
fc931582 AA |
2364 | /* |
2365 | * a CREATE_SESSION request | |
2366 | */ | |
2367 | static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, | |
2368 | struct nfs41_create_session_args *args) | |
2369 | { | |
2370 | struct xdr_stream xdr; | |
2371 | struct compound_hdr hdr = { | |
2372 | .minorversion = args->client->cl_minorversion, | |
2373 | }; | |
2374 | ||
2375 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2376 | encode_compound_hdr(&xdr, req, &hdr); | |
2377 | encode_create_session(&xdr, args, &hdr); | |
2378 | encode_nops(&hdr); | |
2379 | return 0; | |
2380 | } | |
2381 | ||
0f3e66c6 AA |
2382 | /* |
2383 | * a DESTROY_SESSION request | |
2384 | */ | |
2385 | static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, | |
2386 | struct nfs4_session *session) | |
2387 | { | |
2388 | struct xdr_stream xdr; | |
2389 | struct compound_hdr hdr = { | |
2390 | .minorversion = session->clp->cl_minorversion, | |
2391 | }; | |
2392 | ||
2393 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2394 | encode_compound_hdr(&xdr, req, &hdr); | |
2395 | encode_destroy_session(&xdr, session, &hdr); | |
2396 | encode_nops(&hdr); | |
2397 | return 0; | |
2398 | } | |
2399 | ||
fc01cea9 AA |
2400 | /* |
2401 | * a SEQUENCE request | |
2402 | */ | |
2403 | static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, | |
2404 | struct nfs4_sequence_args *args) | |
2405 | { | |
2406 | struct xdr_stream xdr; | |
2407 | struct compound_hdr hdr = { | |
2408 | .minorversion = nfs4_xdr_minorversion(args), | |
2409 | }; | |
2410 | ||
2411 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2412 | encode_compound_hdr(&xdr, req, &hdr); | |
2413 | encode_sequence(&xdr, args, &hdr); | |
2414 | encode_nops(&hdr); | |
2415 | return 0; | |
2416 | } | |
2417 | ||
2050f0cc AA |
2418 | /* |
2419 | * a GET_LEASE_TIME request | |
2420 | */ | |
2421 | static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, | |
2422 | struct nfs4_get_lease_time_args *args) | |
2423 | { | |
2424 | struct xdr_stream xdr; | |
2425 | struct compound_hdr hdr = { | |
2426 | .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), | |
2427 | }; | |
2428 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
2429 | ||
2430 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2431 | encode_compound_hdr(&xdr, req, &hdr); | |
2432 | encode_sequence(&xdr, &args->la_seq_args, &hdr); | |
2433 | encode_putrootfh(&xdr, &hdr); | |
2434 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
2435 | encode_nops(&hdr); | |
2436 | return 0; | |
2437 | } | |
99fe60d0 BH |
2438 | #endif /* CONFIG_NFS_V4_1 */ |
2439 | ||
1da177e4 LT |
2440 | /* |
2441 | * START OF "GENERIC" DECODE ROUTINES. | |
2442 | * These may look a little ugly since they are imported from a "generic" | |
2443 | * set of XDR encode/decode routines which are intended to be shared by | |
2444 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
2445 | * | |
2446 | * If the pain of reading these is too great, it should be a straightforward | |
2447 | * task to translate them into Linux-specific versions which are more | |
2448 | * consistent with the style used in NFSv2/v3... | |
2449 | */ | |
2450 | #define READ32(x) (x) = ntohl(*p++) | |
2451 | #define READ64(x) do { \ | |
2452 | (x) = (u64)ntohl(*p++) << 32; \ | |
2453 | (x) |= ntohl(*p++); \ | |
2454 | } while (0) | |
2455 | #define READTIME(x) do { \ | |
2456 | p++; \ | |
2457 | (x.tv_sec) = ntohl(*p++); \ | |
2458 | (x.tv_nsec) = ntohl(*p++); \ | |
2459 | } while (0) | |
2460 | #define COPYMEM(x,nbytes) do { \ | |
2461 | memcpy((x), p, nbytes); \ | |
2462 | p += XDR_QUADLEN(nbytes); \ | |
2463 | } while (0) | |
2464 | ||
2465 | #define READ_BUF(nbytes) do { \ | |
2466 | p = xdr_inline_decode(xdr, nbytes); \ | |
e4cc6ee2 | 2467 | if (unlikely(!p)) { \ |
fe82a183 | 2468 | dprintk("nfs: %s: prematurely hit end of receive" \ |
3110ff80 | 2469 | " buffer\n", __func__); \ |
fe82a183 | 2470 | dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ |
3110ff80 | 2471 | __func__, xdr->p, nbytes, xdr->end); \ |
1da177e4 LT |
2472 | return -EIO; \ |
2473 | } \ | |
2474 | } while (0) | |
2475 | ||
683b57b4 | 2476 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
1da177e4 | 2477 | { |
8687b63a | 2478 | __be32 *p; |
1da177e4 LT |
2479 | |
2480 | READ_BUF(4); | |
2481 | READ32(*len); | |
2482 | READ_BUF(*len); | |
2483 | *string = (char *)p; | |
2484 | return 0; | |
2485 | } | |
2486 | ||
2487 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
2488 | { | |
8687b63a | 2489 | __be32 *p; |
1da177e4 LT |
2490 | |
2491 | READ_BUF(8); | |
2492 | READ32(hdr->status); | |
2493 | READ32(hdr->taglen); | |
6c0195a4 | 2494 | |
1da177e4 LT |
2495 | READ_BUF(hdr->taglen + 4); |
2496 | hdr->tag = (char *)p; | |
2497 | p += XDR_QUADLEN(hdr->taglen); | |
2498 | READ32(hdr->nops); | |
aadf6152 BH |
2499 | if (unlikely(hdr->nops < 1)) |
2500 | return nfs4_stat_to_errno(hdr->status); | |
1da177e4 LT |
2501 | return 0; |
2502 | } | |
2503 | ||
2504 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) | |
2505 | { | |
8687b63a | 2506 | __be32 *p; |
1da177e4 LT |
2507 | uint32_t opnum; |
2508 | int32_t nfserr; | |
2509 | ||
2510 | READ_BUF(8); | |
2511 | READ32(opnum); | |
2512 | if (opnum != expected) { | |
fe82a183 CL |
2513 | dprintk("nfs: Server returned operation" |
2514 | " %d but we issued a request for %d\n", | |
1da177e4 LT |
2515 | opnum, expected); |
2516 | return -EIO; | |
2517 | } | |
2518 | READ32(nfserr); | |
2519 | if (nfserr != NFS_OK) | |
856dff3d | 2520 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
2521 | return 0; |
2522 | } | |
2523 | ||
2524 | /* Dummy routine */ | |
adfa6f98 | 2525 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
1da177e4 | 2526 | { |
8687b63a | 2527 | __be32 *p; |
683b57b4 | 2528 | unsigned int strlen; |
1da177e4 LT |
2529 | char *str; |
2530 | ||
2531 | READ_BUF(12); | |
2532 | return decode_opaque_inline(xdr, &strlen, &str); | |
2533 | } | |
2534 | ||
2535 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) | |
2536 | { | |
8687b63a AV |
2537 | uint32_t bmlen; |
2538 | __be32 *p; | |
1da177e4 LT |
2539 | |
2540 | READ_BUF(4); | |
2541 | READ32(bmlen); | |
2542 | ||
2543 | bitmap[0] = bitmap[1] = 0; | |
2544 | READ_BUF((bmlen << 2)); | |
2545 | if (bmlen > 0) { | |
2546 | READ32(bitmap[0]); | |
2547 | if (bmlen > 1) | |
2548 | READ32(bitmap[1]); | |
2549 | } | |
2550 | return 0; | |
2551 | } | |
2552 | ||
8687b63a | 2553 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
1da177e4 | 2554 | { |
8687b63a | 2555 | __be32 *p; |
1da177e4 LT |
2556 | |
2557 | READ_BUF(4); | |
2558 | READ32(*attrlen); | |
2559 | *savep = xdr->p; | |
2560 | return 0; | |
2561 | } | |
2562 | ||
2563 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) | |
2564 | { | |
2565 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { | |
2566 | decode_attr_bitmap(xdr, bitmask); | |
2567 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; | |
2568 | } else | |
2569 | bitmask[0] = bitmask[1] = 0; | |
44109241 | 2570 | dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); |
1da177e4 LT |
2571 | return 0; |
2572 | } | |
2573 | ||
2574 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) | |
2575 | { | |
8687b63a | 2576 | __be32 *p; |
409924e4 | 2577 | int ret = 0; |
1da177e4 LT |
2578 | |
2579 | *type = 0; | |
2580 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) | |
2581 | return -EIO; | |
2582 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { | |
2583 | READ_BUF(4); | |
2584 | READ32(*type); | |
2585 | if (*type < NF4REG || *type > NF4NAMEDATTR) { | |
3110ff80 | 2586 | dprintk("%s: bad type %d\n", __func__, *type); |
1da177e4 LT |
2587 | return -EIO; |
2588 | } | |
2589 | bitmap[0] &= ~FATTR4_WORD0_TYPE; | |
409924e4 | 2590 | ret = NFS_ATTR_FATTR_TYPE; |
1da177e4 | 2591 | } |
bca79478 | 2592 | dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); |
409924e4 | 2593 | return ret; |
1da177e4 LT |
2594 | } |
2595 | ||
2596 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) | |
2597 | { | |
8687b63a | 2598 | __be32 *p; |
409924e4 | 2599 | int ret = 0; |
1da177e4 LT |
2600 | |
2601 | *change = 0; | |
2602 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) | |
2603 | return -EIO; | |
2604 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { | |
2605 | READ_BUF(8); | |
2606 | READ64(*change); | |
2607 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; | |
409924e4 | 2608 | ret = NFS_ATTR_FATTR_CHANGE; |
1da177e4 | 2609 | } |
3110ff80 | 2610 | dprintk("%s: change attribute=%Lu\n", __func__, |
1da177e4 | 2611 | (unsigned long long)*change); |
409924e4 | 2612 | return ret; |
1da177e4 LT |
2613 | } |
2614 | ||
2615 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) | |
2616 | { | |
8687b63a | 2617 | __be32 *p; |
409924e4 | 2618 | int ret = 0; |
1da177e4 LT |
2619 | |
2620 | *size = 0; | |
2621 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) | |
2622 | return -EIO; | |
2623 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { | |
2624 | READ_BUF(8); | |
2625 | READ64(*size); | |
2626 | bitmap[0] &= ~FATTR4_WORD0_SIZE; | |
409924e4 | 2627 | ret = NFS_ATTR_FATTR_SIZE; |
1da177e4 | 2628 | } |
3110ff80 | 2629 | dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); |
409924e4 | 2630 | return ret; |
1da177e4 LT |
2631 | } |
2632 | ||
2633 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2634 | { | |
8687b63a | 2635 | __be32 *p; |
1da177e4 LT |
2636 | |
2637 | *res = 0; | |
2638 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) | |
2639 | return -EIO; | |
2640 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { | |
2641 | READ_BUF(4); | |
2642 | READ32(*res); | |
2643 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; | |
2644 | } | |
3110ff80 | 2645 | dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2646 | return 0; |
2647 | } | |
2648 | ||
2649 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2650 | { | |
8687b63a | 2651 | __be32 *p; |
1da177e4 LT |
2652 | |
2653 | *res = 0; | |
2654 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) | |
2655 | return -EIO; | |
2656 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { | |
2657 | READ_BUF(4); | |
2658 | READ32(*res); | |
2659 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; | |
2660 | } | |
3110ff80 | 2661 | dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2662 | return 0; |
2663 | } | |
2664 | ||
8b4bdcf8 | 2665 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
1da177e4 | 2666 | { |
8687b63a | 2667 | __be32 *p; |
409924e4 | 2668 | int ret = 0; |
1da177e4 LT |
2669 | |
2670 | fsid->major = 0; | |
2671 | fsid->minor = 0; | |
2672 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) | |
2673 | return -EIO; | |
2674 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { | |
2675 | READ_BUF(16); | |
2676 | READ64(fsid->major); | |
2677 | READ64(fsid->minor); | |
2678 | bitmap[0] &= ~FATTR4_WORD0_FSID; | |
409924e4 | 2679 | ret = NFS_ATTR_FATTR_FSID; |
1da177e4 | 2680 | } |
3110ff80 | 2681 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, |
1da177e4 LT |
2682 | (unsigned long long)fsid->major, |
2683 | (unsigned long long)fsid->minor); | |
409924e4 | 2684 | return ret; |
1da177e4 LT |
2685 | } |
2686 | ||
2687 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2688 | { | |
8687b63a | 2689 | __be32 *p; |
1da177e4 LT |
2690 | |
2691 | *res = 60; | |
2692 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) | |
2693 | return -EIO; | |
2694 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { | |
2695 | READ_BUF(4); | |
2696 | READ32(*res); | |
2697 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; | |
2698 | } | |
3110ff80 | 2699 | dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2700 | return 0; |
2701 | } | |
2702 | ||
2703 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2704 | { | |
8687b63a | 2705 | __be32 *p; |
1da177e4 LT |
2706 | |
2707 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; | |
2708 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) | |
2709 | return -EIO; | |
2710 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { | |
2711 | READ_BUF(4); | |
2712 | READ32(*res); | |
2713 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; | |
2714 | } | |
3110ff80 | 2715 | dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2716 | return 0; |
2717 | } | |
2718 | ||
2719 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) | |
2720 | { | |
8687b63a | 2721 | __be32 *p; |
409924e4 | 2722 | int ret = 0; |
1da177e4 LT |
2723 | |
2724 | *fileid = 0; | |
2725 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) | |
2726 | return -EIO; | |
2727 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { | |
2728 | READ_BUF(8); | |
2729 | READ64(*fileid); | |
2730 | bitmap[0] &= ~FATTR4_WORD0_FILEID; | |
409924e4 | 2731 | ret = NFS_ATTR_FATTR_FILEID; |
1da177e4 | 2732 | } |
3110ff80 | 2733 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2734 | return ret; |
1da177e4 LT |
2735 | } |
2736 | ||
99baf625 MN |
2737 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
2738 | { | |
8687b63a | 2739 | __be32 *p; |
409924e4 | 2740 | int ret = 0; |
99baf625 MN |
2741 | |
2742 | *fileid = 0; | |
2743 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) | |
2744 | return -EIO; | |
2745 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { | |
2746 | READ_BUF(8); | |
2747 | READ64(*fileid); | |
2748 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
409924e4 | 2749 | ret = NFS_ATTR_FATTR_FILEID; |
99baf625 | 2750 | } |
3110ff80 | 2751 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2752 | return ret; |
99baf625 MN |
2753 | } |
2754 | ||
1da177e4 LT |
2755 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2756 | { | |
8687b63a | 2757 | __be32 *p; |
1da177e4 LT |
2758 | int status = 0; |
2759 | ||
2760 | *res = 0; | |
2761 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) | |
2762 | return -EIO; | |
2763 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { | |
2764 | READ_BUF(8); | |
2765 | READ64(*res); | |
2766 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; | |
2767 | } | |
3110ff80 | 2768 | dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2769 | return status; |
2770 | } | |
2771 | ||
2772 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2773 | { | |
8687b63a | 2774 | __be32 *p; |
1da177e4 LT |
2775 | int status = 0; |
2776 | ||
2777 | *res = 0; | |
2778 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) | |
2779 | return -EIO; | |
2780 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { | |
2781 | READ_BUF(8); | |
2782 | READ64(*res); | |
2783 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; | |
2784 | } | |
3110ff80 | 2785 | dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2786 | return status; |
2787 | } | |
2788 | ||
2789 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2790 | { | |
8687b63a | 2791 | __be32 *p; |
1da177e4 LT |
2792 | int status = 0; |
2793 | ||
2794 | *res = 0; | |
2795 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) | |
2796 | return -EIO; | |
2797 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { | |
2798 | READ_BUF(8); | |
2799 | READ64(*res); | |
2800 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; | |
2801 | } | |
3110ff80 | 2802 | dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2803 | return status; |
2804 | } | |
2805 | ||
7aaa0b3b MN |
2806 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
2807 | { | |
464ad6b1 | 2808 | u32 n; |
8687b63a | 2809 | __be32 *p; |
7aaa0b3b MN |
2810 | int status = 0; |
2811 | ||
2812 | READ_BUF(4); | |
2813 | READ32(n); | |
33a43f28 AA |
2814 | if (n == 0) |
2815 | goto root_path; | |
7aaa0b3b MN |
2816 | dprintk("path "); |
2817 | path->ncomponents = 0; | |
2818 | while (path->ncomponents < n) { | |
2819 | struct nfs4_string *component = &path->components[path->ncomponents]; | |
2820 | status = decode_opaque_inline(xdr, &component->len, &component->data); | |
2821 | if (unlikely(status != 0)) | |
2822 | goto out_eio; | |
2823 | if (path->ncomponents != n) | |
2824 | dprintk("/"); | |
2825 | dprintk("%s", component->data); | |
2826 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) | |
2827 | path->ncomponents++; | |
2828 | else { | |
2829 | dprintk("cannot parse %d components in path\n", n); | |
2830 | goto out_eio; | |
2831 | } | |
2832 | } | |
2833 | out: | |
2834 | dprintk("\n"); | |
2835 | return status; | |
33a43f28 AA |
2836 | root_path: |
2837 | /* a root pathname is sent as a zero component4 */ | |
2838 | path->ncomponents = 1; | |
2839 | path->components[0].len=0; | |
2840 | path->components[0].data=NULL; | |
2841 | dprintk("path /\n"); | |
2842 | goto out; | |
7aaa0b3b MN |
2843 | out_eio: |
2844 | dprintk(" status %d", status); | |
2845 | status = -EIO; | |
2846 | goto out; | |
2847 | } | |
2848 | ||
2849 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) | |
683b57b4 TM |
2850 | { |
2851 | int n; | |
8687b63a | 2852 | __be32 *p; |
683b57b4 TM |
2853 | int status = -EIO; |
2854 | ||
2855 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) | |
2856 | goto out; | |
2857 | status = 0; | |
2858 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) | |
2859 | goto out; | |
3110ff80 | 2860 | dprintk("%s: fsroot ", __func__); |
7aaa0b3b | 2861 | status = decode_pathname(xdr, &res->fs_path); |
683b57b4 TM |
2862 | if (unlikely(status != 0)) |
2863 | goto out; | |
2864 | READ_BUF(4); | |
2865 | READ32(n); | |
2866 | if (n <= 0) | |
2867 | goto out_eio; | |
2868 | res->nlocations = 0; | |
2869 | while (res->nlocations < n) { | |
464ad6b1 | 2870 | u32 m; |
7aaa0b3b | 2871 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; |
683b57b4 | 2872 | |
7aaa0b3b MN |
2873 | READ_BUF(4); |
2874 | READ32(m); | |
7aaa0b3b MN |
2875 | |
2876 | loc->nservers = 0; | |
3110ff80 | 2877 | dprintk("%s: servers ", __func__); |
7aaa0b3b MN |
2878 | while (loc->nservers < m) { |
2879 | struct nfs4_string *server = &loc->servers[loc->nservers]; | |
2880 | status = decode_opaque_inline(xdr, &server->len, &server->data); | |
2881 | if (unlikely(status != 0)) | |
2882 | goto out_eio; | |
2883 | dprintk("%s ", server->data); | |
2884 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) | |
2885 | loc->nservers++; | |
2886 | else { | |
464ad6b1 CL |
2887 | unsigned int i; |
2888 | dprintk("%s: using first %u of %u servers " | |
2889 | "returned for location %u\n", | |
3110ff80 | 2890 | __func__, |
464ad6b1 CL |
2891 | NFS4_FS_LOCATION_MAXSERVERS, |
2892 | m, res->nlocations); | |
7aaa0b3b | 2893 | for (i = loc->nservers; i < m; i++) { |
2e42c3e2 | 2894 | unsigned int len; |
7aaa0b3b MN |
2895 | char *data; |
2896 | status = decode_opaque_inline(xdr, &len, &data); | |
2897 | if (unlikely(status != 0)) | |
2898 | goto out_eio; | |
2899 | } | |
2900 | } | |
2901 | } | |
2902 | status = decode_pathname(xdr, &loc->rootpath); | |
683b57b4 TM |
2903 | if (unlikely(status != 0)) |
2904 | goto out_eio; | |
7aaa0b3b | 2905 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
683b57b4 TM |
2906 | res->nlocations++; |
2907 | } | |
409924e4 TM |
2908 | if (res->nlocations != 0) |
2909 | status = NFS_ATTR_FATTR_V4_REFERRAL; | |
683b57b4 | 2910 | out: |
3110ff80 | 2911 | dprintk("%s: fs_locations done, error = %d\n", __func__, status); |
683b57b4 TM |
2912 | return status; |
2913 | out_eio: | |
2914 | status = -EIO; | |
2915 | goto out; | |
2916 | } | |
2917 | ||
1da177e4 LT |
2918 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2919 | { | |
8687b63a | 2920 | __be32 *p; |
1da177e4 LT |
2921 | int status = 0; |
2922 | ||
2923 | *res = 0; | |
2924 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) | |
2925 | return -EIO; | |
2926 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { | |
2927 | READ_BUF(8); | |
2928 | READ64(*res); | |
2929 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; | |
2930 | } | |
3110ff80 | 2931 | dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2932 | return status; |
2933 | } | |
2934 | ||
2935 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) | |
2936 | { | |
8687b63a | 2937 | __be32 *p; |
1da177e4 LT |
2938 | int status = 0; |
2939 | ||
2940 | *maxlink = 1; | |
2941 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) | |
2942 | return -EIO; | |
2943 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { | |
2944 | READ_BUF(4); | |
2945 | READ32(*maxlink); | |
2946 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; | |
2947 | } | |
3110ff80 | 2948 | dprintk("%s: maxlink=%u\n", __func__, *maxlink); |
1da177e4 LT |
2949 | return status; |
2950 | } | |
2951 | ||
2952 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) | |
2953 | { | |
8687b63a | 2954 | __be32 *p; |
1da177e4 LT |
2955 | int status = 0; |
2956 | ||
2957 | *maxname = 1024; | |
2958 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) | |
2959 | return -EIO; | |
2960 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { | |
2961 | READ_BUF(4); | |
2962 | READ32(*maxname); | |
2963 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; | |
2964 | } | |
3110ff80 | 2965 | dprintk("%s: maxname=%u\n", __func__, *maxname); |
1da177e4 LT |
2966 | return status; |
2967 | } | |
2968 | ||
2969 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2970 | { | |
8687b63a | 2971 | __be32 *p; |
1da177e4 LT |
2972 | int status = 0; |
2973 | ||
2974 | *res = 1024; | |
2975 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) | |
2976 | return -EIO; | |
2977 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { | |
2978 | uint64_t maxread; | |
2979 | READ_BUF(8); | |
2980 | READ64(maxread); | |
2981 | if (maxread > 0x7FFFFFFF) | |
2982 | maxread = 0x7FFFFFFF; | |
2983 | *res = (uint32_t)maxread; | |
2984 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; | |
2985 | } | |
3110ff80 | 2986 | dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
2987 | return status; |
2988 | } | |
2989 | ||
2990 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2991 | { | |
8687b63a | 2992 | __be32 *p; |
1da177e4 LT |
2993 | int status = 0; |
2994 | ||
2995 | *res = 1024; | |
2996 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) | |
2997 | return -EIO; | |
2998 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { | |
2999 | uint64_t maxwrite; | |
3000 | READ_BUF(8); | |
3001 | READ64(maxwrite); | |
3002 | if (maxwrite > 0x7FFFFFFF) | |
3003 | maxwrite = 0x7FFFFFFF; | |
3004 | *res = (uint32_t)maxwrite; | |
3005 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; | |
3006 | } | |
3110ff80 | 3007 | dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
3008 | return status; |
3009 | } | |
3010 | ||
bca79478 | 3011 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) |
1da177e4 | 3012 | { |
bca79478 | 3013 | uint32_t tmp; |
8687b63a | 3014 | __be32 *p; |
409924e4 | 3015 | int ret = 0; |
1da177e4 LT |
3016 | |
3017 | *mode = 0; | |
3018 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) | |
3019 | return -EIO; | |
3020 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { | |
3021 | READ_BUF(4); | |
bca79478 TM |
3022 | READ32(tmp); |
3023 | *mode = tmp & ~S_IFMT; | |
1da177e4 | 3024 | bitmap[1] &= ~FATTR4_WORD1_MODE; |
409924e4 | 3025 | ret = NFS_ATTR_FATTR_MODE; |
1da177e4 | 3026 | } |
3110ff80 | 3027 | dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); |
409924e4 | 3028 | return ret; |
1da177e4 LT |
3029 | } |
3030 | ||
3031 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) | |
3032 | { | |
8687b63a | 3033 | __be32 *p; |
409924e4 | 3034 | int ret = 0; |
1da177e4 LT |
3035 | |
3036 | *nlink = 1; | |
3037 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) | |
3038 | return -EIO; | |
3039 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { | |
3040 | READ_BUF(4); | |
3041 | READ32(*nlink); | |
3042 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; | |
409924e4 | 3043 | ret = NFS_ATTR_FATTR_NLINK; |
1da177e4 | 3044 | } |
3110ff80 | 3045 | dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); |
409924e4 | 3046 | return ret; |
1da177e4 LT |
3047 | } |
3048 | ||
2e42c3e2 | 3049 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) |
1da177e4 | 3050 | { |
8687b63a AV |
3051 | uint32_t len; |
3052 | __be32 *p; | |
409924e4 | 3053 | int ret = 0; |
1da177e4 LT |
3054 | |
3055 | *uid = -2; | |
3056 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) | |
3057 | return -EIO; | |
3058 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { | |
3059 | READ_BUF(4); | |
3060 | READ32(len); | |
3061 | READ_BUF(len); | |
3062 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
3063 | if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) |
3064 | ret = NFS_ATTR_FATTR_OWNER; | |
3065 | else | |
1da177e4 | 3066 | dprintk("%s: nfs_map_name_to_uid failed!\n", |
3110ff80 | 3067 | __func__); |
1da177e4 | 3068 | } else |
fe82a183 | 3069 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3070 | __func__, len); |
1da177e4 LT |
3071 | bitmap[1] &= ~FATTR4_WORD1_OWNER; |
3072 | } | |
3110ff80 | 3073 | dprintk("%s: uid=%d\n", __func__, (int)*uid); |
409924e4 | 3074 | return ret; |
1da177e4 LT |
3075 | } |
3076 | ||
2e42c3e2 | 3077 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) |
1da177e4 | 3078 | { |
8687b63a AV |
3079 | uint32_t len; |
3080 | __be32 *p; | |
409924e4 | 3081 | int ret = 0; |
1da177e4 LT |
3082 | |
3083 | *gid = -2; | |
3084 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) | |
3085 | return -EIO; | |
3086 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { | |
3087 | READ_BUF(4); | |
3088 | READ32(len); | |
3089 | READ_BUF(len); | |
3090 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
3091 | if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) |
3092 | ret = NFS_ATTR_FATTR_GROUP; | |
3093 | else | |
1da177e4 | 3094 | dprintk("%s: nfs_map_group_to_gid failed!\n", |
3110ff80 | 3095 | __func__); |
1da177e4 | 3096 | } else |
fe82a183 | 3097 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3098 | __func__, len); |
1da177e4 LT |
3099 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; |
3100 | } | |
3110ff80 | 3101 | dprintk("%s: gid=%d\n", __func__, (int)*gid); |
409924e4 | 3102 | return ret; |
1da177e4 LT |
3103 | } |
3104 | ||
3105 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) | |
3106 | { | |
8687b63a AV |
3107 | uint32_t major = 0, minor = 0; |
3108 | __be32 *p; | |
409924e4 | 3109 | int ret = 0; |
1da177e4 LT |
3110 | |
3111 | *rdev = MKDEV(0,0); | |
3112 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) | |
3113 | return -EIO; | |
3114 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { | |
3115 | dev_t tmp; | |
3116 | ||
3117 | READ_BUF(8); | |
3118 | READ32(major); | |
3119 | READ32(minor); | |
3120 | tmp = MKDEV(major, minor); | |
3121 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) | |
3122 | *rdev = tmp; | |
3123 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; | |
409924e4 | 3124 | ret = NFS_ATTR_FATTR_RDEV; |
1da177e4 | 3125 | } |
3110ff80 | 3126 | dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); |
409924e4 | 3127 | return ret; |
1da177e4 LT |
3128 | } |
3129 | ||
3130 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3131 | { | |
8687b63a | 3132 | __be32 *p; |
1da177e4 LT |
3133 | int status = 0; |
3134 | ||
3135 | *res = 0; | |
3136 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) | |
3137 | return -EIO; | |
3138 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { | |
3139 | READ_BUF(8); | |
3140 | READ64(*res); | |
3141 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; | |
3142 | } | |
3110ff80 | 3143 | dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
3144 | return status; |
3145 | } | |
3146 | ||
3147 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3148 | { | |
8687b63a | 3149 | __be32 *p; |
1da177e4 LT |
3150 | int status = 0; |
3151 | ||
3152 | *res = 0; | |
3153 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) | |
3154 | return -EIO; | |
3155 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { | |
3156 | READ_BUF(8); | |
3157 | READ64(*res); | |
3158 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; | |
3159 | } | |
3110ff80 | 3160 | dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
3161 | return status; |
3162 | } | |
3163 | ||
3164 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3165 | { | |
8687b63a | 3166 | __be32 *p; |
1da177e4 LT |
3167 | int status = 0; |
3168 | ||
3169 | *res = 0; | |
3170 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) | |
3171 | return -EIO; | |
3172 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { | |
3173 | READ_BUF(8); | |
3174 | READ64(*res); | |
3175 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; | |
3176 | } | |
3110ff80 | 3177 | dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
3178 | return status; |
3179 | } | |
3180 | ||
3181 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) | |
3182 | { | |
8687b63a | 3183 | __be32 *p; |
409924e4 | 3184 | int ret = 0; |
1da177e4 LT |
3185 | |
3186 | *used = 0; | |
3187 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) | |
3188 | return -EIO; | |
3189 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { | |
3190 | READ_BUF(8); | |
3191 | READ64(*used); | |
3192 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; | |
409924e4 | 3193 | ret = NFS_ATTR_FATTR_SPACE_USED; |
1da177e4 | 3194 | } |
3110ff80 | 3195 | dprintk("%s: space used=%Lu\n", __func__, |
1da177e4 | 3196 | (unsigned long long)*used); |
409924e4 | 3197 | return ret; |
1da177e4 LT |
3198 | } |
3199 | ||
3200 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) | |
3201 | { | |
8687b63a | 3202 | __be32 *p; |
1da177e4 LT |
3203 | uint64_t sec; |
3204 | uint32_t nsec; | |
3205 | ||
3206 | READ_BUF(12); | |
3207 | READ64(sec); | |
3208 | READ32(nsec); | |
3209 | time->tv_sec = (time_t)sec; | |
3210 | time->tv_nsec = (long)nsec; | |
3211 | return 0; | |
3212 | } | |
3213 | ||
3214 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3215 | { | |
3216 | int status = 0; | |
3217 | ||
3218 | time->tv_sec = 0; | |
3219 | time->tv_nsec = 0; | |
3220 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) | |
3221 | return -EIO; | |
3222 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { | |
3223 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3224 | if (status == 0) |
3225 | status = NFS_ATTR_FATTR_ATIME; | |
1da177e4 LT |
3226 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; |
3227 | } | |
3110ff80 | 3228 | dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3229 | return status; |
3230 | } | |
3231 | ||
3232 | static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3233 | { | |
3234 | int status = 0; | |
3235 | ||
3236 | time->tv_sec = 0; | |
3237 | time->tv_nsec = 0; | |
3238 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) | |
3239 | return -EIO; | |
3240 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { | |
3241 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3242 | if (status == 0) |
3243 | status = NFS_ATTR_FATTR_CTIME; | |
1da177e4 LT |
3244 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; |
3245 | } | |
3110ff80 | 3246 | dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3247 | return status; |
3248 | } | |
3249 | ||
3250 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3251 | { | |
3252 | int status = 0; | |
3253 | ||
3254 | time->tv_sec = 0; | |
3255 | time->tv_nsec = 0; | |
3256 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) | |
3257 | return -EIO; | |
3258 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { | |
3259 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3260 | if (status == 0) |
3261 | status = NFS_ATTR_FATTR_MTIME; | |
1da177e4 LT |
3262 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; |
3263 | } | |
3110ff80 | 3264 | dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3265 | return status; |
3266 | } | |
3267 | ||
8687b63a | 3268 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
1da177e4 LT |
3269 | { |
3270 | unsigned int attrwords = XDR_QUADLEN(attrlen); | |
3271 | unsigned int nwords = xdr->p - savep; | |
3272 | ||
3273 | if (unlikely(attrwords != nwords)) { | |
fe82a183 CL |
3274 | dprintk("%s: server returned incorrect attribute length: " |
3275 | "%u %c %u\n", | |
3110ff80 | 3276 | __func__, |
1da177e4 LT |
3277 | attrwords << 2, |
3278 | (attrwords < nwords) ? '<' : '>', | |
3279 | nwords << 2); | |
3280 | return -EIO; | |
3281 | } | |
3282 | return 0; | |
3283 | } | |
3284 | ||
3285 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3286 | { | |
8687b63a | 3287 | __be32 *p; |
1da177e4 LT |
3288 | |
3289 | READ_BUF(20); | |
3290 | READ32(cinfo->atomic); | |
3291 | READ64(cinfo->before); | |
3292 | READ64(cinfo->after); | |
3293 | return 0; | |
3294 | } | |
3295 | ||
3296 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) | |
3297 | { | |
8687b63a | 3298 | __be32 *p; |
1da177e4 LT |
3299 | uint32_t supp, acc; |
3300 | int status; | |
3301 | ||
3302 | status = decode_op_hdr(xdr, OP_ACCESS); | |
3303 | if (status) | |
3304 | return status; | |
3305 | READ_BUF(8); | |
3306 | READ32(supp); | |
3307 | READ32(acc); | |
3308 | access->supported = supp; | |
3309 | access->access = acc; | |
3310 | return 0; | |
3311 | } | |
3312 | ||
3313 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3314 | { | |
8687b63a | 3315 | __be32 *p; |
1da177e4 LT |
3316 | int status; |
3317 | ||
3318 | status = decode_op_hdr(xdr, OP_CLOSE); | |
c1d51931 TM |
3319 | if (status != -EIO) |
3320 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
3321 | if (status) |
3322 | return status; | |
8ae20abd TM |
3323 | READ_BUF(NFS4_STATEID_SIZE); |
3324 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3325 | return 0; |
3326 | } | |
3327 | ||
3328 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3329 | { | |
8687b63a | 3330 | __be32 *p; |
1da177e4 LT |
3331 | int status; |
3332 | ||
3333 | status = decode_op_hdr(xdr, OP_COMMIT); | |
3334 | if (status) | |
3335 | return status; | |
3336 | READ_BUF(8); | |
3337 | COPYMEM(res->verf->verifier, 8); | |
3338 | return 0; | |
3339 | } | |
3340 | ||
3341 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3342 | { | |
8687b63a | 3343 | __be32 *p; |
1da177e4 LT |
3344 | uint32_t bmlen; |
3345 | int status; | |
3346 | ||
3347 | status = decode_op_hdr(xdr, OP_CREATE); | |
3348 | if (status) | |
3349 | return status; | |
3350 | if ((status = decode_change_info(xdr, cinfo))) | |
3351 | return status; | |
3352 | READ_BUF(4); | |
3353 | READ32(bmlen); | |
3354 | READ_BUF(bmlen << 2); | |
3355 | return 0; | |
3356 | } | |
3357 | ||
3358 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) | |
3359 | { | |
8687b63a | 3360 | __be32 *savep; |
6c0195a4 | 3361 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 LT |
3362 | int status; |
3363 | ||
3364 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3365 | goto xdr_error; | |
3366 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3367 | goto xdr_error; | |
3368 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3369 | goto xdr_error; | |
3370 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) | |
3371 | goto xdr_error; | |
3372 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) | |
3373 | goto xdr_error; | |
3374 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) | |
3375 | goto xdr_error; | |
3376 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) | |
3377 | goto xdr_error; | |
3378 | status = verify_attr_len(xdr, savep, attrlen); | |
3379 | xdr_error: | |
3110ff80 | 3380 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3381 | return status; |
3382 | } | |
6c0195a4 | 3383 | |
1da177e4 LT |
3384 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) |
3385 | { | |
8687b63a | 3386 | __be32 *savep; |
6c0195a4 | 3387 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3388 | int status; |
6c0195a4 | 3389 | |
1da177e4 LT |
3390 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3391 | goto xdr_error; | |
3392 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3393 | goto xdr_error; | |
3394 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3395 | goto xdr_error; | |
3396 | ||
3397 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) | |
3398 | goto xdr_error; | |
3399 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) | |
3400 | goto xdr_error; | |
3401 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) | |
3402 | goto xdr_error; | |
3403 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) | |
3404 | goto xdr_error; | |
3405 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) | |
3406 | goto xdr_error; | |
3407 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) | |
3408 | goto xdr_error; | |
3409 | ||
3410 | status = verify_attr_len(xdr, savep, attrlen); | |
3411 | xdr_error: | |
3110ff80 | 3412 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3413 | return status; |
3414 | } | |
3415 | ||
3416 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) | |
3417 | { | |
8687b63a | 3418 | __be32 *savep; |
6c0195a4 | 3419 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3420 | int status; |
6c0195a4 | 3421 | |
1da177e4 LT |
3422 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3423 | goto xdr_error; | |
3424 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3425 | goto xdr_error; | |
3426 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3427 | goto xdr_error; | |
3428 | ||
3429 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) | |
3430 | goto xdr_error; | |
3431 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) | |
3432 | goto xdr_error; | |
3433 | ||
3434 | status = verify_attr_len(xdr, savep, attrlen); | |
3435 | xdr_error: | |
3110ff80 | 3436 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3437 | return status; |
3438 | } | |
3439 | ||
3440 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) | |
3441 | { | |
8687b63a | 3442 | __be32 *savep; |
1da177e4 LT |
3443 | uint32_t attrlen, |
3444 | bitmap[2] = {0}, | |
3445 | type; | |
bca79478 TM |
3446 | int status; |
3447 | umode_t fmode = 0; | |
99baf625 | 3448 | uint64_t fileid; |
1da177e4 | 3449 | |
f26c7a78 TM |
3450 | status = decode_op_hdr(xdr, OP_GETATTR); |
3451 | if (status < 0) | |
1da177e4 | 3452 | goto xdr_error; |
f26c7a78 TM |
3453 | |
3454 | status = decode_attr_bitmap(xdr, bitmap); | |
3455 | if (status < 0) | |
1da177e4 LT |
3456 | goto xdr_error; |
3457 | ||
f26c7a78 TM |
3458 | status = decode_attr_length(xdr, &attrlen, &savep); |
3459 | if (status < 0) | |
1da177e4 LT |
3460 | goto xdr_error; |
3461 | ||
3462 | ||
f26c7a78 TM |
3463 | status = decode_attr_type(xdr, bitmap, &type); |
3464 | if (status < 0) | |
1da177e4 | 3465 | goto xdr_error; |
409924e4 TM |
3466 | fattr->mode = 0; |
3467 | if (status != 0) { | |
3468 | fattr->mode |= nfs_type2fmt[type]; | |
3469 | fattr->valid |= status; | |
3470 | } | |
1da177e4 | 3471 | |
f26c7a78 TM |
3472 | status = decode_attr_change(xdr, bitmap, &fattr->change_attr); |
3473 | if (status < 0) | |
1da177e4 | 3474 | goto xdr_error; |
409924e4 | 3475 | fattr->valid |= status; |
f26c7a78 TM |
3476 | |
3477 | status = decode_attr_size(xdr, bitmap, &fattr->size); | |
3478 | if (status < 0) | |
1da177e4 | 3479 | goto xdr_error; |
409924e4 | 3480 | fattr->valid |= status; |
f26c7a78 TM |
3481 | |
3482 | status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); | |
3483 | if (status < 0) | |
1da177e4 | 3484 | goto xdr_error; |
409924e4 | 3485 | fattr->valid |= status; |
f26c7a78 TM |
3486 | |
3487 | status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); | |
3488 | if (status < 0) | |
1da177e4 | 3489 | goto xdr_error; |
409924e4 | 3490 | fattr->valid |= status; |
f26c7a78 TM |
3491 | |
3492 | status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, | |
7aaa0b3b | 3493 | struct nfs4_fs_locations, |
f26c7a78 TM |
3494 | fattr)); |
3495 | if (status < 0) | |
683b57b4 | 3496 | goto xdr_error; |
409924e4 | 3497 | fattr->valid |= status; |
f26c7a78 TM |
3498 | |
3499 | status = decode_attr_mode(xdr, bitmap, &fmode); | |
3500 | if (status < 0) | |
1da177e4 | 3501 | goto xdr_error; |
409924e4 TM |
3502 | if (status != 0) { |
3503 | fattr->mode |= fmode; | |
3504 | fattr->valid |= status; | |
3505 | } | |
f26c7a78 TM |
3506 | |
3507 | status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); | |
3508 | if (status < 0) | |
1da177e4 | 3509 | goto xdr_error; |
409924e4 | 3510 | fattr->valid |= status; |
f26c7a78 TM |
3511 | |
3512 | status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); | |
3513 | if (status < 0) | |
1da177e4 | 3514 | goto xdr_error; |
409924e4 | 3515 | fattr->valid |= status; |
f26c7a78 TM |
3516 | |
3517 | status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); | |
3518 | if (status < 0) | |
1da177e4 | 3519 | goto xdr_error; |
409924e4 | 3520 | fattr->valid |= status; |
f26c7a78 TM |
3521 | |
3522 | status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); | |
3523 | if (status < 0) | |
1da177e4 | 3524 | goto xdr_error; |
409924e4 | 3525 | fattr->valid |= status; |
f26c7a78 TM |
3526 | |
3527 | status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); | |
3528 | if (status < 0) | |
1da177e4 | 3529 | goto xdr_error; |
409924e4 | 3530 | fattr->valid |= status; |
f26c7a78 TM |
3531 | |
3532 | status = decode_attr_time_access(xdr, bitmap, &fattr->atime); | |
3533 | if (status < 0) | |
1da177e4 | 3534 | goto xdr_error; |
409924e4 | 3535 | fattr->valid |= status; |
f26c7a78 TM |
3536 | |
3537 | status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); | |
3538 | if (status < 0) | |
1da177e4 | 3539 | goto xdr_error; |
409924e4 | 3540 | fattr->valid |= status; |
f26c7a78 TM |
3541 | |
3542 | status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); | |
3543 | if (status < 0) | |
1da177e4 | 3544 | goto xdr_error; |
409924e4 | 3545 | fattr->valid |= status; |
f26c7a78 TM |
3546 | |
3547 | status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); | |
3548 | if (status < 0) | |
99baf625 | 3549 | goto xdr_error; |
409924e4 | 3550 | if (status != 0 && !(fattr->valid & status)) { |
99baf625 | 3551 | fattr->fileid = fileid; |
409924e4 TM |
3552 | fattr->valid |= status; |
3553 | } | |
f26c7a78 TM |
3554 | |
3555 | status = verify_attr_len(xdr, savep, attrlen); | |
1da177e4 | 3556 | xdr_error: |
3110ff80 | 3557 | dprintk("%s: xdr returned %d\n", __func__, -status); |
1da177e4 LT |
3558 | return status; |
3559 | } | |
3560 | ||
3561 | ||
3562 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) | |
3563 | { | |
8687b63a | 3564 | __be32 *savep; |
1da177e4 LT |
3565 | uint32_t attrlen, bitmap[2]; |
3566 | int status; | |
3567 | ||
3568 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3569 | goto xdr_error; | |
3570 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3571 | goto xdr_error; | |
3572 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3573 | goto xdr_error; | |
3574 | ||
3575 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ | |
3576 | ||
3577 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) | |
3578 | goto xdr_error; | |
3579 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) | |
3580 | goto xdr_error; | |
3581 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) | |
3582 | goto xdr_error; | |
3583 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; | |
3584 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) | |
3585 | goto xdr_error; | |
3586 | fsinfo->wtpref = fsinfo->wtmax; | |
3587 | ||
3588 | status = verify_attr_len(xdr, savep, attrlen); | |
3589 | xdr_error: | |
3110ff80 | 3590 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3591 | return status; |
3592 | } | |
3593 | ||
3594 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) | |
3595 | { | |
8687b63a | 3596 | __be32 *p; |
1da177e4 LT |
3597 | uint32_t len; |
3598 | int status; | |
3599 | ||
9936781d TM |
3600 | /* Zero handle first to allow comparisons */ |
3601 | memset(fh, 0, sizeof(*fh)); | |
3602 | ||
1da177e4 LT |
3603 | status = decode_op_hdr(xdr, OP_GETFH); |
3604 | if (status) | |
3605 | return status; | |
1da177e4 LT |
3606 | |
3607 | READ_BUF(4); | |
3608 | READ32(len); | |
3609 | if (len > NFS4_FHSIZE) | |
3610 | return -EIO; | |
3611 | fh->size = len; | |
3612 | READ_BUF(len); | |
3613 | COPYMEM(fh->data, len); | |
3614 | return 0; | |
3615 | } | |
3616 | ||
3617 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3618 | { | |
3619 | int status; | |
6c0195a4 | 3620 | |
1da177e4 LT |
3621 | status = decode_op_hdr(xdr, OP_LINK); |
3622 | if (status) | |
3623 | return status; | |
3624 | return decode_change_info(xdr, cinfo); | |
3625 | } | |
3626 | ||
3627 | /* | |
3628 | * We create the owner, so we know a proper owner.id length is 4. | |
3629 | */ | |
911d1aaf | 3630 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
1da177e4 | 3631 | { |
911d1aaf | 3632 | uint64_t offset, length, clientid; |
8687b63a | 3633 | __be32 *p; |
911d1aaf | 3634 | uint32_t namelen, type; |
1da177e4 LT |
3635 | |
3636 | READ_BUF(32); | |
911d1aaf TM |
3637 | READ64(offset); |
3638 | READ64(length); | |
3639 | READ32(type); | |
3640 | if (fl != NULL) { | |
3641 | fl->fl_start = (loff_t)offset; | |
3642 | fl->fl_end = fl->fl_start + (loff_t)length - 1; | |
3643 | if (length == ~(uint64_t)0) | |
3644 | fl->fl_end = OFFSET_MAX; | |
3645 | fl->fl_type = F_WRLCK; | |
3646 | if (type & 1) | |
3647 | fl->fl_type = F_RDLCK; | |
3648 | fl->fl_pid = 0; | |
3649 | } | |
3650 | READ64(clientid); | |
1da177e4 LT |
3651 | READ32(namelen); |
3652 | READ_BUF(namelen); | |
1da177e4 LT |
3653 | return -NFS4ERR_DENIED; |
3654 | } | |
3655 | ||
911d1aaf | 3656 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
1da177e4 | 3657 | { |
8687b63a | 3658 | __be32 *p; |
1da177e4 LT |
3659 | int status; |
3660 | ||
3661 | status = decode_op_hdr(xdr, OP_LOCK); | |
c1d51931 TM |
3662 | if (status == -EIO) |
3663 | goto out; | |
1da177e4 | 3664 | if (status == 0) { |
8ae20abd TM |
3665 | READ_BUF(NFS4_STATEID_SIZE); |
3666 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3667 | } else if (status == -NFS4ERR_DENIED) |
c1d51931 TM |
3668 | status = decode_lock_denied(xdr, NULL); |
3669 | if (res->open_seqid != NULL) | |
3670 | nfs_increment_open_seqid(status, res->open_seqid); | |
3671 | nfs_increment_lock_seqid(status, res->lock_seqid); | |
3672 | out: | |
1da177e4 LT |
3673 | return status; |
3674 | } | |
3675 | ||
911d1aaf | 3676 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
1da177e4 LT |
3677 | { |
3678 | int status; | |
3679 | status = decode_op_hdr(xdr, OP_LOCKT); | |
3680 | if (status == -NFS4ERR_DENIED) | |
911d1aaf | 3681 | return decode_lock_denied(xdr, res->denied); |
1da177e4 LT |
3682 | return status; |
3683 | } | |
3684 | ||
911d1aaf | 3685 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
1da177e4 | 3686 | { |
8687b63a | 3687 | __be32 *p; |
1da177e4 LT |
3688 | int status; |
3689 | ||
3690 | status = decode_op_hdr(xdr, OP_LOCKU); | |
c1d51931 TM |
3691 | if (status != -EIO) |
3692 | nfs_increment_lock_seqid(status, res->seqid); | |
1da177e4 | 3693 | if (status == 0) { |
8ae20abd TM |
3694 | READ_BUF(NFS4_STATEID_SIZE); |
3695 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3696 | } |
3697 | return status; | |
3698 | } | |
3699 | ||
3700 | static int decode_lookup(struct xdr_stream *xdr) | |
3701 | { | |
3702 | return decode_op_hdr(xdr, OP_LOOKUP); | |
3703 | } | |
3704 | ||
3705 | /* This is too sick! */ | |
3706 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) | |
3707 | { | |
05d564fe | 3708 | __be32 *p; |
1da177e4 LT |
3709 | uint32_t limit_type, nblocks, blocksize; |
3710 | ||
3711 | READ_BUF(12); | |
3712 | READ32(limit_type); | |
3713 | switch (limit_type) { | |
05d564fe AA |
3714 | case 1: |
3715 | READ64(*maxsize); | |
3716 | break; | |
3717 | case 2: | |
3718 | READ32(nblocks); | |
3719 | READ32(blocksize); | |
3720 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; | |
1da177e4 LT |
3721 | } |
3722 | return 0; | |
3723 | } | |
3724 | ||
3725 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) | |
3726 | { | |
05d564fe AA |
3727 | __be32 *p; |
3728 | uint32_t delegation_type; | |
1da177e4 LT |
3729 | |
3730 | READ_BUF(4); | |
3731 | READ32(delegation_type); | |
3732 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { | |
3733 | res->delegation_type = 0; | |
3734 | return 0; | |
3735 | } | |
8ae20abd TM |
3736 | READ_BUF(NFS4_STATEID_SIZE+4); |
3737 | COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3738 | READ32(res->do_recall); |
05d564fe | 3739 | |
1da177e4 | 3740 | switch (delegation_type) { |
05d564fe AA |
3741 | case NFS4_OPEN_DELEGATE_READ: |
3742 | res->delegation_type = FMODE_READ; | |
3743 | break; | |
3744 | case NFS4_OPEN_DELEGATE_WRITE: | |
3745 | res->delegation_type = FMODE_WRITE|FMODE_READ; | |
3746 | if (decode_space_limit(xdr, &res->maxsize) < 0) | |
1da177e4 LT |
3747 | return -EIO; |
3748 | } | |
7539bbab | 3749 | return decode_ace(xdr, NULL, res->server->nfs_client); |
1da177e4 LT |
3750 | } |
3751 | ||
3752 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) | |
3753 | { | |
05d564fe | 3754 | __be32 *p; |
aa53ed54 | 3755 | uint32_t savewords, bmlen, i; |
05d564fe | 3756 | int status; |
1da177e4 | 3757 | |
05d564fe | 3758 | status = decode_op_hdr(xdr, OP_OPEN); |
c1d51931 TM |
3759 | if (status != -EIO) |
3760 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3761 | if (status) |
3762 | return status; | |
3763 | READ_BUF(NFS4_STATEID_SIZE); | |
3764 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3765 | |
05d564fe | 3766 | decode_change_info(xdr, &res->cinfo); |
1da177e4 | 3767 | |
05d564fe AA |
3768 | READ_BUF(8); |
3769 | READ32(res->rflags); | |
3770 | READ32(bmlen); | |
3771 | if (bmlen > 10) | |
3772 | goto xdr_error; | |
1da177e4 | 3773 | |
05d564fe | 3774 | READ_BUF(bmlen << 2); |
aa53ed54 JL |
3775 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
3776 | for (i = 0; i < savewords; ++i) | |
3777 | READ32(res->attrset[i]); | |
3778 | for (; i < NFS4_BITMAP_SIZE; i++) | |
3779 | res->attrset[i] = 0; | |
3780 | ||
1da177e4 LT |
3781 | return decode_delegation(xdr, res); |
3782 | xdr_error: | |
3110ff80 | 3783 | dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); |
1da177e4 LT |
3784 | return -EIO; |
3785 | } | |
3786 | ||
3787 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) | |
3788 | { | |
05d564fe | 3789 | __be32 *p; |
1da177e4 LT |
3790 | int status; |
3791 | ||
05d564fe | 3792 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); |
c1d51931 TM |
3793 | if (status != -EIO) |
3794 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3795 | if (status) |
3796 | return status; | |
3797 | READ_BUF(NFS4_STATEID_SIZE); | |
3798 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
3799 | return 0; | |
1da177e4 LT |
3800 | } |
3801 | ||
3802 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3803 | { | |
8687b63a | 3804 | __be32 *p; |
1da177e4 LT |
3805 | int status; |
3806 | ||
3807 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); | |
c1d51931 TM |
3808 | if (status != -EIO) |
3809 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
3810 | if (status) |
3811 | return status; | |
8ae20abd TM |
3812 | READ_BUF(NFS4_STATEID_SIZE); |
3813 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3814 | return 0; |
3815 | } | |
3816 | ||
3817 | static int decode_putfh(struct xdr_stream *xdr) | |
3818 | { | |
3819 | return decode_op_hdr(xdr, OP_PUTFH); | |
3820 | } | |
3821 | ||
3822 | static int decode_putrootfh(struct xdr_stream *xdr) | |
3823 | { | |
3824 | return decode_op_hdr(xdr, OP_PUTROOTFH); | |
3825 | } | |
3826 | ||
3827 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) | |
3828 | { | |
3829 | struct kvec *iov = req->rq_rcv_buf.head; | |
8687b63a | 3830 | __be32 *p; |
1da177e4 LT |
3831 | uint32_t count, eof, recvd, hdrlen; |
3832 | int status; | |
3833 | ||
3834 | status = decode_op_hdr(xdr, OP_READ); | |
3835 | if (status) | |
3836 | return status; | |
3837 | READ_BUF(8); | |
3838 | READ32(eof); | |
3839 | READ32(count); | |
3840 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; | |
3841 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3842 | if (count > recvd) { | |
fe82a183 | 3843 | dprintk("NFS: server cheating in read reply: " |
1da177e4 LT |
3844 | "count %u > recvd %u\n", count, recvd); |
3845 | count = recvd; | |
3846 | eof = 0; | |
3847 | } | |
3848 | xdr_read_pages(xdr, count); | |
3849 | res->eof = eof; | |
3850 | res->count = count; | |
3851 | return 0; | |
3852 | } | |
3853 | ||
3854 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) | |
3855 | { | |
3856 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3857 | struct page *page = *rcvbuf->pages; | |
3858 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3859 | size_t hdrlen; |
3860 | u32 recvd, pglen = rcvbuf->page_len; | |
8687b63a | 3861 | __be32 *end, *entry, *p, *kaddr; |
7bda2cdf | 3862 | unsigned int nr = 0; |
bcecff77 | 3863 | int status; |
1da177e4 LT |
3864 | |
3865 | status = decode_op_hdr(xdr, OP_READDIR); | |
3866 | if (status) | |
3867 | return status; | |
3868 | READ_BUF(8); | |
3869 | COPYMEM(readdir->verifier.data, 8); | |
44109241 FI |
3870 | dprintk("%s: verifier = %08x:%08x\n", |
3871 | __func__, | |
eadf4598 TM |
3872 | ((u32 *)readdir->verifier.data)[0], |
3873 | ((u32 *)readdir->verifier.data)[1]); | |
3874 | ||
1da177e4 LT |
3875 | |
3876 | hdrlen = (char *) p - (char *) iov->iov_base; | |
3877 | recvd = rcvbuf->len - hdrlen; | |
3878 | if (pglen > recvd) | |
3879 | pglen = recvd; | |
3880 | xdr_read_pages(xdr, pglen); | |
3881 | ||
3882 | BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); | |
8687b63a | 3883 | kaddr = p = kmap_atomic(page, KM_USER0); |
e8896495 | 3884 | end = p + ((pglen + readdir->pgbase) >> 2); |
1da177e4 | 3885 | entry = p; |
7bda2cdf JL |
3886 | |
3887 | /* Make sure the packet actually has a value_follows and EOF entry */ | |
3888 | if ((entry + 1) > end) | |
3889 | goto short_pkt; | |
3890 | ||
3891 | for (; *p++; nr++) { | |
bcecff77 | 3892 | u32 len, attrlen, xlen; |
e8896495 | 3893 | if (end - p < 3) |
1da177e4 | 3894 | goto short_pkt; |
eadf4598 | 3895 | dprintk("cookie = %Lu, ", *((unsigned long long *)p)); |
1da177e4 LT |
3896 | p += 2; /* cookie */ |
3897 | len = ntohl(*p++); /* filename length */ | |
3898 | if (len > NFS4_MAXNAMLEN) { | |
fe82a183 CL |
3899 | dprintk("NFS: giant filename in readdir (len 0x%x)\n", |
3900 | len); | |
1da177e4 LT |
3901 | goto err_unmap; |
3902 | } | |
e8896495 DH |
3903 | xlen = XDR_QUADLEN(len); |
3904 | if (end - p < xlen + 1) | |
1da177e4 | 3905 | goto short_pkt; |
e8896495 DH |
3906 | dprintk("filename = %*s\n", len, (char *)p); |
3907 | p += xlen; | |
1da177e4 | 3908 | len = ntohl(*p++); /* bitmap length */ |
e8896495 | 3909 | if (end - p < len + 1) |
1da177e4 | 3910 | goto short_pkt; |
e8896495 | 3911 | p += len; |
1da177e4 | 3912 | attrlen = XDR_QUADLEN(ntohl(*p++)); |
e8896495 | 3913 | if (end - p < attrlen + 2) |
1da177e4 | 3914 | goto short_pkt; |
e8896495 | 3915 | p += attrlen; /* attributes */ |
1da177e4 LT |
3916 | entry = p; |
3917 | } | |
7bda2cdf JL |
3918 | /* |
3919 | * Apparently some server sends responses that are a valid size, but | |
3920 | * contain no entries, and have value_follows==0 and EOF==0. For | |
3921 | * those, just set the EOF marker. | |
3922 | */ | |
3923 | if (!nr && entry[1] == 0) { | |
3924 | dprintk("NFS: readdir reply truncated!\n"); | |
3925 | entry[1] = 1; | |
3926 | } | |
6c0195a4 | 3927 | out: |
1da177e4 LT |
3928 | kunmap_atomic(kaddr, KM_USER0); |
3929 | return 0; | |
3930 | short_pkt: | |
7bda2cdf JL |
3931 | /* |
3932 | * When we get a short packet there are 2 possibilities. We can | |
3933 | * return an error, or fix up the response to look like a valid | |
3934 | * response and return what we have so far. If there are no | |
3935 | * entries and the packet was short, then return -EIO. If there | |
3936 | * are valid entries in the response, return them and pretend that | |
3937 | * the call was successful, but incomplete. The caller can retry the | |
3938 | * readdir starting at the last cookie. | |
3939 | */ | |
3110ff80 | 3940 | dprintk("%s: short packet at entry %d\n", __func__, nr); |
1da177e4 | 3941 | entry[0] = entry[1] = 0; |
7bda2cdf JL |
3942 | if (nr) |
3943 | goto out; | |
1da177e4 LT |
3944 | err_unmap: |
3945 | kunmap_atomic(kaddr, KM_USER0); | |
3946 | return -errno_NFSERR_IO; | |
3947 | } | |
3948 | ||
3949 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) | |
3950 | { | |
3951 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3952 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3953 | size_t hdrlen; |
3954 | u32 len, recvd; | |
8687b63a | 3955 | __be32 *p; |
1da177e4 LT |
3956 | char *kaddr; |
3957 | int status; | |
3958 | ||
3959 | status = decode_op_hdr(xdr, OP_READLINK); | |
3960 | if (status) | |
3961 | return status; | |
3962 | ||
3963 | /* Convert length of symlink */ | |
3964 | READ_BUF(4); | |
3965 | READ32(len); | |
3966 | if (len >= rcvbuf->page_len || len <= 0) { | |
fe82a183 | 3967 | dprintk("nfs: server returned giant symlink!\n"); |
1da177e4 LT |
3968 | return -ENAMETOOLONG; |
3969 | } | |
3970 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; | |
3971 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3972 | if (recvd < len) { | |
fe82a183 | 3973 | dprintk("NFS: server cheating in readlink reply: " |
1da177e4 LT |
3974 | "count %u > recvd %u\n", len, recvd); |
3975 | return -EIO; | |
3976 | } | |
3977 | xdr_read_pages(xdr, len); | |
3978 | /* | |
3979 | * The XDR encode routine has set things up so that | |
3980 | * the link text will be copied directly into the | |
3981 | * buffer. We just have to do overflow-checking, | |
3982 | * and and null-terminate the text (the VFS expects | |
3983 | * null-termination). | |
3984 | */ | |
3985 | kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); | |
3986 | kaddr[len+rcvbuf->page_base] = '\0'; | |
3987 | kunmap_atomic(kaddr, KM_USER0); | |
3988 | return 0; | |
3989 | } | |
3990 | ||
3991 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3992 | { | |
3993 | int status; | |
3994 | ||
3995 | status = decode_op_hdr(xdr, OP_REMOVE); | |
3996 | if (status) | |
3997 | goto out; | |
3998 | status = decode_change_info(xdr, cinfo); | |
3999 | out: | |
4000 | return status; | |
4001 | } | |
4002 | ||
4003 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, | |
4004 | struct nfs4_change_info *new_cinfo) | |
4005 | { | |
4006 | int status; | |
4007 | ||
4008 | status = decode_op_hdr(xdr, OP_RENAME); | |
4009 | if (status) | |
4010 | goto out; | |
4011 | if ((status = decode_change_info(xdr, old_cinfo))) | |
4012 | goto out; | |
4013 | status = decode_change_info(xdr, new_cinfo); | |
4014 | out: | |
4015 | return status; | |
4016 | } | |
4017 | ||
4018 | static int decode_renew(struct xdr_stream *xdr) | |
4019 | { | |
4020 | return decode_op_hdr(xdr, OP_RENEW); | |
4021 | } | |
4022 | ||
56ae19f3 TM |
4023 | static int |
4024 | decode_restorefh(struct xdr_stream *xdr) | |
4025 | { | |
4026 | return decode_op_hdr(xdr, OP_RESTOREFH); | |
4027 | } | |
4028 | ||
029d105e BF |
4029 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
4030 | size_t *acl_len) | |
4031 | { | |
8687b63a | 4032 | __be32 *savep; |
029d105e BF |
4033 | uint32_t attrlen, |
4034 | bitmap[2] = {0}; | |
4035 | struct kvec *iov = req->rq_rcv_buf.head; | |
4036 | int status; | |
4037 | ||
4038 | *acl_len = 0; | |
4039 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
4040 | goto out; | |
4041 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
4042 | goto out; | |
4043 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
4044 | goto out; | |
4045 | ||
4046 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) | |
4047 | return -EIO; | |
4048 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { | |
bcecff77 CL |
4049 | size_t hdrlen; |
4050 | u32 recvd; | |
029d105e BF |
4051 | |
4052 | /* We ignore &savep and don't do consistency checks on | |
4053 | * the attr length. Let userspace figure it out.... */ | |
4054 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; | |
4055 | recvd = req->rq_rcv_buf.len - hdrlen; | |
4056 | if (attrlen > recvd) { | |
fe82a183 | 4057 | dprintk("NFS: server cheating in getattr" |
029d105e BF |
4058 | " acl reply: attrlen %u > recvd %u\n", |
4059 | attrlen, recvd); | |
4060 | return -EINVAL; | |
4061 | } | |
c04871e6 | 4062 | xdr_read_pages(xdr, attrlen); |
029d105e | 4063 | *acl_len = attrlen; |
8c233cf9 BF |
4064 | } else |
4065 | status = -EOPNOTSUPP; | |
029d105e BF |
4066 | |
4067 | out: | |
4068 | return status; | |
4069 | } | |
4070 | ||
1da177e4 LT |
4071 | static int |
4072 | decode_savefh(struct xdr_stream *xdr) | |
4073 | { | |
4074 | return decode_op_hdr(xdr, OP_SAVEFH); | |
4075 | } | |
4076 | ||
9e9ecc03 | 4077 | static int decode_setattr(struct xdr_stream *xdr) |
1da177e4 | 4078 | { |
8687b63a | 4079 | __be32 *p; |
1da177e4 LT |
4080 | uint32_t bmlen; |
4081 | int status; | |
4082 | ||
1da177e4 LT |
4083 | status = decode_op_hdr(xdr, OP_SETATTR); |
4084 | if (status) | |
4085 | return status; | |
4086 | READ_BUF(4); | |
4087 | READ32(bmlen); | |
4088 | READ_BUF(bmlen << 2); | |
4089 | return 0; | |
4090 | } | |
4091 | ||
adfa6f98 | 4092 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) |
1da177e4 | 4093 | { |
8687b63a | 4094 | __be32 *p; |
1da177e4 LT |
4095 | uint32_t opnum; |
4096 | int32_t nfserr; | |
4097 | ||
4098 | READ_BUF(8); | |
4099 | READ32(opnum); | |
4100 | if (opnum != OP_SETCLIENTID) { | |
fe82a183 | 4101 | dprintk("nfs: decode_setclientid: Server returned operation" |
6c0195a4 | 4102 | " %d\n", opnum); |
1da177e4 LT |
4103 | return -EIO; |
4104 | } | |
4105 | READ32(nfserr); | |
4106 | if (nfserr == NFS_OK) { | |
8ae20abd | 4107 | READ_BUF(8 + NFS4_VERIFIER_SIZE); |
1da177e4 | 4108 | READ64(clp->cl_clientid); |
8ae20abd | 4109 | COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
4110 | } else if (nfserr == NFSERR_CLID_INUSE) { |
4111 | uint32_t len; | |
4112 | ||
4113 | /* skip netid string */ | |
4114 | READ_BUF(4); | |
4115 | READ32(len); | |
4116 | READ_BUF(len); | |
4117 | ||
4118 | /* skip uaddr string */ | |
4119 | READ_BUF(4); | |
4120 | READ32(len); | |
4121 | READ_BUF(len); | |
4122 | return -NFSERR_CLID_INUSE; | |
4123 | } else | |
856dff3d | 4124 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
4125 | |
4126 | return 0; | |
4127 | } | |
4128 | ||
4129 | static int decode_setclientid_confirm(struct xdr_stream *xdr) | |
4130 | { | |
4131 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); | |
4132 | } | |
4133 | ||
4134 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) | |
4135 | { | |
8687b63a | 4136 | __be32 *p; |
1da177e4 LT |
4137 | int status; |
4138 | ||
4139 | status = decode_op_hdr(xdr, OP_WRITE); | |
4140 | if (status) | |
4141 | return status; | |
4142 | ||
4143 | READ_BUF(16); | |
4144 | READ32(res->count); | |
4145 | READ32(res->verf->committed); | |
4146 | COPYMEM(res->verf->verifier, 8); | |
4147 | return 0; | |
4148 | } | |
4149 | ||
4150 | static int decode_delegreturn(struct xdr_stream *xdr) | |
4151 | { | |
4152 | return decode_op_hdr(xdr, OP_DELEGRETURN); | |
4153 | } | |
4154 | ||
99fe60d0 BH |
4155 | #if defined(CONFIG_NFS_V4_1) |
4156 | static int decode_exchange_id(struct xdr_stream *xdr, | |
4157 | struct nfs41_exchange_id_res *res) | |
4158 | { | |
4159 | __be32 *p; | |
4160 | uint32_t dummy; | |
4161 | int status; | |
4162 | struct nfs_client *clp = res->client; | |
4163 | ||
4164 | status = decode_op_hdr(xdr, OP_EXCHANGE_ID); | |
4165 | if (status) | |
4166 | return status; | |
4167 | ||
4168 | READ_BUF(8); | |
4169 | READ64(clp->cl_ex_clid); | |
4170 | READ_BUF(12); | |
4171 | READ32(clp->cl_seqid); | |
4172 | READ32(clp->cl_exchange_flags); | |
4173 | ||
4174 | /* We ask for SP4_NONE */ | |
4175 | READ32(dummy); | |
4176 | if (dummy != SP4_NONE) | |
4177 | return -EIO; | |
4178 | ||
4179 | /* Throw away minor_id */ | |
4180 | READ_BUF(8); | |
4181 | ||
4182 | /* Throw away Major id */ | |
4183 | READ_BUF(4); | |
4184 | READ32(dummy); | |
4185 | READ_BUF(dummy); | |
4186 | ||
4187 | /* Throw away server_scope */ | |
4188 | READ_BUF(4); | |
4189 | READ32(dummy); | |
4190 | READ_BUF(dummy); | |
4191 | ||
4192 | /* Throw away Implementation id array */ | |
4193 | READ_BUF(4); | |
4194 | READ32(dummy); | |
4195 | READ_BUF(dummy); | |
4196 | ||
4197 | return 0; | |
4198 | } | |
fc931582 AA |
4199 | |
4200 | static int decode_chan_attrs(struct xdr_stream *xdr, | |
4201 | struct nfs4_channel_attrs *attrs) | |
4202 | { | |
4203 | __be32 *p; | |
4204 | u32 nr_attrs; | |
4205 | ||
4206 | READ_BUF(28); | |
4207 | READ32(attrs->headerpadsz); | |
4208 | READ32(attrs->max_rqst_sz); | |
4209 | READ32(attrs->max_resp_sz); | |
4210 | READ32(attrs->max_resp_sz_cached); | |
4211 | READ32(attrs->max_ops); | |
4212 | READ32(attrs->max_reqs); | |
4213 | READ32(nr_attrs); | |
4214 | if (unlikely(nr_attrs > 1)) { | |
4215 | printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", | |
4216 | __func__, nr_attrs); | |
4217 | return -EINVAL; | |
4218 | } | |
4219 | if (nr_attrs == 1) | |
4220 | READ_BUF(4); /* skip rdma_attrs */ | |
4221 | return 0; | |
4222 | } | |
4223 | ||
4224 | static int decode_create_session(struct xdr_stream *xdr, | |
4225 | struct nfs41_create_session_res *res) | |
4226 | { | |
4227 | __be32 *p; | |
4228 | int status; | |
4229 | struct nfs_client *clp = res->client; | |
4230 | struct nfs4_session *session = clp->cl_session; | |
4231 | ||
4232 | status = decode_op_hdr(xdr, OP_CREATE_SESSION); | |
4233 | ||
4234 | if (status) | |
4235 | return status; | |
4236 | ||
4237 | /* sessionid */ | |
4238 | READ_BUF(NFS4_MAX_SESSIONID_LEN); | |
4239 | COPYMEM(&session->sess_id, NFS4_MAX_SESSIONID_LEN); | |
4240 | ||
4241 | /* seqid, flags */ | |
4242 | READ_BUF(8); | |
4243 | READ32(clp->cl_seqid); | |
4244 | READ32(session->flags); | |
4245 | ||
4246 | /* Channel attributes */ | |
4247 | status = decode_chan_attrs(xdr, &session->fc_attrs); | |
4248 | if (!status) | |
4249 | status = decode_chan_attrs(xdr, &session->bc_attrs); | |
4250 | return status; | |
4251 | } | |
0f3e66c6 AA |
4252 | |
4253 | static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) | |
4254 | { | |
4255 | return decode_op_hdr(xdr, OP_DESTROY_SESSION); | |
4256 | } | |
99fe60d0 BH |
4257 | #endif /* CONFIG_NFS_V4_1 */ |
4258 | ||
9b7b9fcc AA |
4259 | static int decode_sequence(struct xdr_stream *xdr, |
4260 | struct nfs4_sequence_res *res, | |
4261 | struct rpc_rqst *rqstp) | |
4262 | { | |
4263 | #if defined(CONFIG_NFS_V4_1) | |
fc01cea9 AA |
4264 | struct nfs4_slot *slot; |
4265 | struct nfs4_sessionid id; | |
4266 | u32 dummy; | |
4267 | int status; | |
4268 | __be32 *p; | |
4269 | ||
9b7b9fcc AA |
4270 | if (!res->sr_session) |
4271 | return 0; | |
4272 | ||
fc01cea9 AA |
4273 | status = decode_op_hdr(xdr, OP_SEQUENCE); |
4274 | if (status) | |
4275 | goto out_err; | |
9b7b9fcc | 4276 | |
fc01cea9 AA |
4277 | /* |
4278 | * If the server returns different values for sessionID, slotID or | |
4279 | * sequence number, the server is looney tunes. | |
4280 | */ | |
4281 | status = -ESERVERFAULT; | |
4282 | ||
4283 | slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; | |
4284 | READ_BUF(NFS4_MAX_SESSIONID_LEN + 20); | |
4285 | COPYMEM(id.data, NFS4_MAX_SESSIONID_LEN); | |
4286 | if (memcmp(id.data, res->sr_session->sess_id.data, | |
4287 | NFS4_MAX_SESSIONID_LEN)) { | |
4288 | dprintk("%s Invalid session id\n", __func__); | |
4289 | goto out_err; | |
4290 | } | |
4291 | /* seqid */ | |
4292 | READ32(dummy); | |
4293 | if (dummy != slot->seq_nr) { | |
4294 | dprintk("%s Invalid sequence number\n", __func__); | |
4295 | goto out_err; | |
4296 | } | |
4297 | /* slot id */ | |
4298 | READ32(dummy); | |
4299 | if (dummy != res->sr_slotid) { | |
4300 | dprintk("%s Invalid slot id\n", __func__); | |
4301 | goto out_err; | |
4302 | } | |
4303 | /* highest slot id - currently not processed */ | |
4304 | READ32(dummy); | |
4305 | /* target highest slot id - currently not processed */ | |
4306 | READ32(dummy); | |
4307 | /* result flags - currently not processed */ | |
4308 | READ32(dummy); | |
4309 | status = 0; | |
4310 | out_err: | |
4311 | res->sr_status = status; | |
4312 | return status; | |
4313 | #else /* CONFIG_NFS_V4_1 */ | |
9b7b9fcc | 4314 | return 0; |
fc01cea9 | 4315 | #endif /* CONFIG_NFS_V4_1 */ |
9b7b9fcc AA |
4316 | } |
4317 | ||
49c2559e BH |
4318 | /* |
4319 | * END OF "GENERIC" DECODE ROUTINES. | |
4320 | */ | |
4321 | ||
1da177e4 LT |
4322 | /* |
4323 | * Decode OPEN_DOWNGRADE response | |
4324 | */ | |
8687b63a | 4325 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4326 | { |
05d564fe AA |
4327 | struct xdr_stream xdr; |
4328 | struct compound_hdr hdr; | |
4329 | int status; | |
4330 | ||
4331 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4332 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4333 | if (status) |
4334 | goto out; | |
4335 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4336 | if (status) |
4337 | goto out; | |
4338 | status = decode_putfh(&xdr); | |
4339 | if (status) | |
4340 | goto out; | |
4341 | status = decode_open_downgrade(&xdr, res); | |
516a6af6 TM |
4342 | if (status != 0) |
4343 | goto out; | |
4344 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 4345 | out: |
05d564fe | 4346 | return status; |
1da177e4 LT |
4347 | } |
4348 | ||
1da177e4 LT |
4349 | /* |
4350 | * Decode ACCESS response | |
4351 | */ | |
8687b63a | 4352 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) |
1da177e4 LT |
4353 | { |
4354 | struct xdr_stream xdr; | |
4355 | struct compound_hdr hdr; | |
4356 | int status; | |
6c0195a4 | 4357 | |
1da177e4 | 4358 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4359 | status = decode_compound_hdr(&xdr, &hdr); |
4360 | if (status) | |
4361 | goto out; | |
4362 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4363 | if (status) | |
1da177e4 | 4364 | goto out; |
76b32999 TM |
4365 | status = decode_putfh(&xdr); |
4366 | if (status != 0) | |
4367 | goto out; | |
4368 | status = decode_access(&xdr, res); | |
4369 | if (status != 0) | |
4370 | goto out; | |
4371 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4372 | out: |
4373 | return status; | |
4374 | } | |
4375 | ||
4376 | /* | |
4377 | * Decode LOOKUP response | |
4378 | */ | |
8687b63a | 4379 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
4380 | { |
4381 | struct xdr_stream xdr; | |
4382 | struct compound_hdr hdr; | |
4383 | int status; | |
6c0195a4 | 4384 | |
1da177e4 | 4385 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4386 | status = decode_compound_hdr(&xdr, &hdr); |
4387 | if (status) | |
4388 | goto out; | |
4389 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4390 | if (status) | |
1da177e4 LT |
4391 | goto out; |
4392 | if ((status = decode_putfh(&xdr)) != 0) | |
4393 | goto out; | |
4394 | if ((status = decode_lookup(&xdr)) != 0) | |
4395 | goto out; | |
4396 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
4397 | goto out; | |
4398 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4399 | out: | |
4400 | return status; | |
4401 | } | |
4402 | ||
4403 | /* | |
4404 | * Decode LOOKUP_ROOT response | |
4405 | */ | |
8687b63a | 4406 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
4407 | { |
4408 | struct xdr_stream xdr; | |
4409 | struct compound_hdr hdr; | |
4410 | int status; | |
6c0195a4 | 4411 | |
1da177e4 | 4412 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4413 | status = decode_compound_hdr(&xdr, &hdr); |
4414 | if (status) | |
4415 | goto out; | |
4416 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4417 | if (status) | |
1da177e4 LT |
4418 | goto out; |
4419 | if ((status = decode_putrootfh(&xdr)) != 0) | |
4420 | goto out; | |
4421 | if ((status = decode_getfh(&xdr, res->fh)) == 0) | |
4422 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4423 | out: | |
4424 | return status; | |
4425 | } | |
4426 | ||
4427 | /* | |
4428 | * Decode REMOVE response | |
4429 | */ | |
4fdc17b2 | 4430 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) |
1da177e4 LT |
4431 | { |
4432 | struct xdr_stream xdr; | |
4433 | struct compound_hdr hdr; | |
4434 | int status; | |
6c0195a4 | 4435 | |
1da177e4 | 4436 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4437 | status = decode_compound_hdr(&xdr, &hdr); |
4438 | if (status) | |
4439 | goto out; | |
4440 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4441 | if (status) | |
1da177e4 | 4442 | goto out; |
16e42959 TM |
4443 | if ((status = decode_putfh(&xdr)) != 0) |
4444 | goto out; | |
4445 | if ((status = decode_remove(&xdr, &res->cinfo)) != 0) | |
4446 | goto out; | |
4fdc17b2 | 4447 | decode_getfattr(&xdr, &res->dir_attr, res->server); |
1da177e4 LT |
4448 | out: |
4449 | return status; | |
4450 | } | |
4451 | ||
4452 | /* | |
4453 | * Decode RENAME response | |
4454 | */ | |
8687b63a | 4455 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) |
1da177e4 LT |
4456 | { |
4457 | struct xdr_stream xdr; | |
4458 | struct compound_hdr hdr; | |
4459 | int status; | |
6c0195a4 | 4460 | |
1da177e4 | 4461 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4462 | status = decode_compound_hdr(&xdr, &hdr); |
4463 | if (status) | |
4464 | goto out; | |
4465 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4466 | if (status) | |
1da177e4 LT |
4467 | goto out; |
4468 | if ((status = decode_putfh(&xdr)) != 0) | |
4469 | goto out; | |
4470 | if ((status = decode_savefh(&xdr)) != 0) | |
4471 | goto out; | |
4472 | if ((status = decode_putfh(&xdr)) != 0) | |
4473 | goto out; | |
6caf2c82 TM |
4474 | if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) |
4475 | goto out; | |
4476 | /* Current FH is target directory */ | |
4477 | if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) | |
4478 | goto out; | |
4479 | if ((status = decode_restorefh(&xdr)) != 0) | |
4480 | goto out; | |
4481 | decode_getfattr(&xdr, res->old_fattr, res->server); | |
1da177e4 LT |
4482 | out: |
4483 | return status; | |
4484 | } | |
4485 | ||
4486 | /* | |
4487 | * Decode LINK response | |
4488 | */ | |
8687b63a | 4489 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) |
1da177e4 LT |
4490 | { |
4491 | struct xdr_stream xdr; | |
4492 | struct compound_hdr hdr; | |
4493 | int status; | |
6c0195a4 | 4494 | |
1da177e4 | 4495 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4496 | status = decode_compound_hdr(&xdr, &hdr); |
4497 | if (status) | |
4498 | goto out; | |
4499 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4500 | if (status) | |
1da177e4 LT |
4501 | goto out; |
4502 | if ((status = decode_putfh(&xdr)) != 0) | |
4503 | goto out; | |
4504 | if ((status = decode_savefh(&xdr)) != 0) | |
4505 | goto out; | |
4506 | if ((status = decode_putfh(&xdr)) != 0) | |
4507 | goto out; | |
91ba2eee TM |
4508 | if ((status = decode_link(&xdr, &res->cinfo)) != 0) |
4509 | goto out; | |
4510 | /* | |
4511 | * Note order: OP_LINK leaves the directory as the current | |
4512 | * filehandle. | |
4513 | */ | |
4514 | if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) | |
4515 | goto out; | |
4516 | if ((status = decode_restorefh(&xdr)) != 0) | |
4517 | goto out; | |
4518 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4519 | out: |
4520 | return status; | |
4521 | } | |
4522 | ||
4523 | /* | |
4524 | * Decode CREATE response | |
4525 | */ | |
8687b63a | 4526 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4527 | { |
4528 | struct xdr_stream xdr; | |
4529 | struct compound_hdr hdr; | |
4530 | int status; | |
6c0195a4 | 4531 | |
1da177e4 | 4532 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4533 | status = decode_compound_hdr(&xdr, &hdr); |
4534 | if (status) | |
4535 | goto out; | |
4536 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4537 | if (status) | |
1da177e4 LT |
4538 | goto out; |
4539 | if ((status = decode_putfh(&xdr)) != 0) | |
4540 | goto out; | |
56ae19f3 TM |
4541 | if ((status = decode_savefh(&xdr)) != 0) |
4542 | goto out; | |
1da177e4 LT |
4543 | if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) |
4544 | goto out; | |
4545 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
4546 | goto out; | |
56ae19f3 TM |
4547 | if (decode_getfattr(&xdr, res->fattr, res->server) != 0) |
4548 | goto out; | |
4549 | if ((status = decode_restorefh(&xdr)) != 0) | |
4550 | goto out; | |
4551 | decode_getfattr(&xdr, res->dir_fattr, res->server); | |
1da177e4 LT |
4552 | out: |
4553 | return status; | |
4554 | } | |
4555 | ||
4556 | /* | |
4557 | * Decode SYMLINK response | |
4558 | */ | |
8687b63a | 4559 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4560 | { |
4561 | return nfs4_xdr_dec_create(rqstp, p, res); | |
4562 | } | |
4563 | ||
4564 | /* | |
4565 | * Decode GETATTR response | |
4566 | */ | |
8687b63a | 4567 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) |
1da177e4 LT |
4568 | { |
4569 | struct xdr_stream xdr; | |
4570 | struct compound_hdr hdr; | |
4571 | int status; | |
6c0195a4 | 4572 | |
1da177e4 LT |
4573 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
4574 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4575 | if (status) |
4576 | goto out; | |
4577 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4578 | if (status) |
4579 | goto out; | |
4580 | status = decode_putfh(&xdr); | |
4581 | if (status) | |
4582 | goto out; | |
4583 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4584 | out: | |
4585 | return status; | |
1da177e4 LT |
4586 | } |
4587 | ||
23ec6965 BF |
4588 | /* |
4589 | * Encode an SETACL request | |
4590 | */ | |
4591 | static int | |
8687b63a | 4592 | nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) |
23ec6965 | 4593 | { |
05d564fe AA |
4594 | struct xdr_stream xdr; |
4595 | struct compound_hdr hdr = { | |
66cc0429 | 4596 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe AA |
4597 | }; |
4598 | int status; | |
4599 | ||
4600 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 4601 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 4602 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 | 4603 | encode_putfh(&xdr, args->fh, &hdr); |
d017931c | 4604 | status = encode_setacl(&xdr, args, &hdr); |
d017931c | 4605 | encode_nops(&hdr); |
05d564fe | 4606 | return status; |
23ec6965 | 4607 | } |
05d564fe | 4608 | |
23ec6965 BF |
4609 | /* |
4610 | * Decode SETACL response | |
4611 | */ | |
4612 | static int | |
73c403a9 BH |
4613 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, |
4614 | struct nfs_setaclres *res) | |
23ec6965 BF |
4615 | { |
4616 | struct xdr_stream xdr; | |
4617 | struct compound_hdr hdr; | |
4618 | int status; | |
4619 | ||
4620 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4621 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4622 | if (status) |
4623 | goto out; | |
4624 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
23ec6965 BF |
4625 | if (status) |
4626 | goto out; | |
4627 | status = decode_putfh(&xdr); | |
4628 | if (status) | |
4629 | goto out; | |
9e9ecc03 | 4630 | status = decode_setattr(&xdr); |
23ec6965 BF |
4631 | out: |
4632 | return status; | |
4633 | } | |
1da177e4 | 4634 | |
029d105e BF |
4635 | /* |
4636 | * Decode GETACL response | |
4637 | */ | |
4638 | static int | |
663c79b3 BH |
4639 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, |
4640 | struct nfs_getaclres *res) | |
029d105e BF |
4641 | { |
4642 | struct xdr_stream xdr; | |
4643 | struct compound_hdr hdr; | |
4644 | int status; | |
4645 | ||
4646 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4647 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4648 | if (status) |
4649 | goto out; | |
4650 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
029d105e BF |
4651 | if (status) |
4652 | goto out; | |
4653 | status = decode_putfh(&xdr); | |
4654 | if (status) | |
4655 | goto out; | |
663c79b3 | 4656 | status = decode_getacl(&xdr, rqstp, &res->acl_len); |
029d105e BF |
4657 | |
4658 | out: | |
4659 | return status; | |
4660 | } | |
4661 | ||
1da177e4 LT |
4662 | /* |
4663 | * Decode CLOSE response | |
4664 | */ | |
8687b63a | 4665 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4666 | { |
05d564fe AA |
4667 | struct xdr_stream xdr; |
4668 | struct compound_hdr hdr; | |
4669 | int status; | |
4670 | ||
4671 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4672 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4673 | if (status) |
4674 | goto out; | |
4675 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4676 | if (status) |
4677 | goto out; | |
4678 | status = decode_putfh(&xdr); | |
4679 | if (status) | |
4680 | goto out; | |
4681 | status = decode_close(&xdr, res); | |
516a6af6 TM |
4682 | if (status != 0) |
4683 | goto out; | |
4684 | /* | |
4685 | * Note: Server may do delete on close for this file | |
4686 | * in which case the getattr call will fail with | |
4687 | * an ESTALE error. Shouldn't be a problem, | |
4688 | * though, since fattr->valid will remain unset. | |
4689 | */ | |
4690 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 4691 | out: |
05d564fe | 4692 | return status; |
1da177e4 LT |
4693 | } |
4694 | ||
4695 | /* | |
4696 | * Decode OPEN response | |
4697 | */ | |
8687b63a | 4698 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4699 | { |
05d564fe AA |
4700 | struct xdr_stream xdr; |
4701 | struct compound_hdr hdr; | |
4702 | int status; | |
4703 | ||
4704 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4705 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4706 | if (status) |
4707 | goto out; | |
4708 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4709 | if (status) |
4710 | goto out; | |
4711 | status = decode_putfh(&xdr); | |
4712 | if (status) | |
4713 | goto out; | |
4714 | status = decode_savefh(&xdr); | |
4715 | if (status) | |
4716 | goto out; | |
4717 | status = decode_open(&xdr, res); | |
56ae19f3 TM |
4718 | if (status) |
4719 | goto out; | |
9936781d | 4720 | if (decode_getfh(&xdr, &res->fh) != 0) |
1da177e4 | 4721 | goto out; |
56ae19f3 TM |
4722 | if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) |
4723 | goto out; | |
365c8f58 | 4724 | if (decode_restorefh(&xdr) != 0) |
56ae19f3 TM |
4725 | goto out; |
4726 | decode_getfattr(&xdr, res->dir_attr, res->server); | |
1da177e4 | 4727 | out: |
05d564fe | 4728 | return status; |
1da177e4 LT |
4729 | } |
4730 | ||
4731 | /* | |
4732 | * Decode OPEN_CONFIRM response | |
4733 | */ | |
8687b63a | 4734 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) |
1da177e4 | 4735 | { |
05d564fe AA |
4736 | struct xdr_stream xdr; |
4737 | struct compound_hdr hdr; | |
4738 | int status; | |
4739 | ||
4740 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4741 | status = decode_compound_hdr(&xdr, &hdr); | |
4742 | if (status) | |
4743 | goto out; | |
4744 | status = decode_putfh(&xdr); | |
4745 | if (status) | |
4746 | goto out; | |
4747 | status = decode_open_confirm(&xdr, res); | |
1da177e4 | 4748 | out: |
05d564fe | 4749 | return status; |
1da177e4 LT |
4750 | } |
4751 | ||
4752 | /* | |
4753 | * Decode OPEN response | |
4754 | */ | |
8687b63a | 4755 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4756 | { |
05d564fe AA |
4757 | struct xdr_stream xdr; |
4758 | struct compound_hdr hdr; | |
4759 | int status; | |
4760 | ||
4761 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4762 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4763 | if (status) |
4764 | goto out; | |
4765 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4766 | if (status) |
4767 | goto out; | |
4768 | status = decode_putfh(&xdr); | |
4769 | if (status) | |
4770 | goto out; | |
4771 | status = decode_open(&xdr, res); | |
4772 | if (status) | |
4773 | goto out; | |
864472e9 | 4774 | decode_getfattr(&xdr, res->f_attr, res->server); |
1da177e4 | 4775 | out: |
05d564fe | 4776 | return status; |
1da177e4 LT |
4777 | } |
4778 | ||
4779 | /* | |
4780 | * Decode SETATTR response | |
4781 | */ | |
8687b63a | 4782 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) |
1da177e4 | 4783 | { |
05d564fe AA |
4784 | struct xdr_stream xdr; |
4785 | struct compound_hdr hdr; | |
4786 | int status; | |
4787 | ||
4788 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4789 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4790 | if (status) |
4791 | goto out; | |
4792 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4793 | if (status) |
4794 | goto out; | |
4795 | status = decode_putfh(&xdr); | |
4796 | if (status) | |
4797 | goto out; | |
9e9ecc03 | 4798 | status = decode_setattr(&xdr); |
05d564fe AA |
4799 | if (status) |
4800 | goto out; | |
78f945f8 | 4801 | decode_getfattr(&xdr, res->fattr, res->server); |
1da177e4 | 4802 | out: |
05d564fe | 4803 | return status; |
1da177e4 LT |
4804 | } |
4805 | ||
4806 | /* | |
4807 | * Decode LOCK response | |
4808 | */ | |
8687b63a | 4809 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) |
1da177e4 LT |
4810 | { |
4811 | struct xdr_stream xdr; | |
4812 | struct compound_hdr hdr; | |
4813 | int status; | |
4814 | ||
4815 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4816 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4817 | if (status) |
4818 | goto out; | |
4819 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4820 | if (status) |
4821 | goto out; | |
4822 | status = decode_putfh(&xdr); | |
4823 | if (status) | |
4824 | goto out; | |
4825 | status = decode_lock(&xdr, res); | |
4826 | out: | |
4827 | return status; | |
4828 | } | |
4829 | ||
4830 | /* | |
4831 | * Decode LOCKT response | |
4832 | */ | |
8687b63a | 4833 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) |
1da177e4 LT |
4834 | { |
4835 | struct xdr_stream xdr; | |
4836 | struct compound_hdr hdr; | |
4837 | int status; | |
4838 | ||
4839 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4840 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4841 | if (status) |
4842 | goto out; | |
4843 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4844 | if (status) |
4845 | goto out; | |
4846 | status = decode_putfh(&xdr); | |
4847 | if (status) | |
4848 | goto out; | |
4849 | status = decode_lockt(&xdr, res); | |
4850 | out: | |
4851 | return status; | |
4852 | } | |
4853 | ||
4854 | /* | |
4855 | * Decode LOCKU response | |
4856 | */ | |
8687b63a | 4857 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) |
1da177e4 LT |
4858 | { |
4859 | struct xdr_stream xdr; | |
4860 | struct compound_hdr hdr; | |
4861 | int status; | |
4862 | ||
4863 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4864 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4865 | if (status) |
4866 | goto out; | |
4867 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4868 | if (status) |
4869 | goto out; | |
4870 | status = decode_putfh(&xdr); | |
4871 | if (status) | |
4872 | goto out; | |
4873 | status = decode_locku(&xdr, res); | |
4874 | out: | |
4875 | return status; | |
4876 | } | |
4877 | ||
4878 | /* | |
4879 | * Decode READLINK response | |
4880 | */ | |
f50c7000 BH |
4881 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, |
4882 | struct nfs4_readlink_res *res) | |
1da177e4 LT |
4883 | { |
4884 | struct xdr_stream xdr; | |
4885 | struct compound_hdr hdr; | |
4886 | int status; | |
4887 | ||
4888 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4889 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4890 | if (status) |
4891 | goto out; | |
4892 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4893 | if (status) |
4894 | goto out; | |
4895 | status = decode_putfh(&xdr); | |
4896 | if (status) | |
4897 | goto out; | |
4898 | status = decode_readlink(&xdr, rqstp); | |
4899 | out: | |
4900 | return status; | |
4901 | } | |
4902 | ||
4903 | /* | |
4904 | * Decode READDIR response | |
4905 | */ | |
8687b63a | 4906 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) |
1da177e4 LT |
4907 | { |
4908 | struct xdr_stream xdr; | |
4909 | struct compound_hdr hdr; | |
4910 | int status; | |
4911 | ||
4912 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4913 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4914 | if (status) |
4915 | goto out; | |
4916 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4917 | if (status) |
4918 | goto out; | |
4919 | status = decode_putfh(&xdr); | |
4920 | if (status) | |
4921 | goto out; | |
4922 | status = decode_readdir(&xdr, rqstp, res); | |
4923 | out: | |
4924 | return status; | |
4925 | } | |
4926 | ||
4927 | /* | |
4928 | * Decode Read response | |
4929 | */ | |
8687b63a | 4930 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) |
1da177e4 LT |
4931 | { |
4932 | struct xdr_stream xdr; | |
4933 | struct compound_hdr hdr; | |
4934 | int status; | |
4935 | ||
4936 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4937 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4938 | if (status) |
4939 | goto out; | |
4940 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4941 | if (status) |
4942 | goto out; | |
4943 | status = decode_putfh(&xdr); | |
4944 | if (status) | |
4945 | goto out; | |
4946 | status = decode_read(&xdr, rqstp, res); | |
4947 | if (!status) | |
4948 | status = res->count; | |
4949 | out: | |
4950 | return status; | |
4951 | } | |
4952 | ||
4953 | /* | |
4954 | * Decode WRITE response | |
4955 | */ | |
8687b63a | 4956 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4957 | { |
4958 | struct xdr_stream xdr; | |
4959 | struct compound_hdr hdr; | |
4960 | int status; | |
4961 | ||
4962 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4963 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4964 | if (status) |
4965 | goto out; | |
4966 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4967 | if (status) |
4968 | goto out; | |
4969 | status = decode_putfh(&xdr); | |
4970 | if (status) | |
4971 | goto out; | |
4972 | status = decode_write(&xdr, res); | |
4f9838c7 TM |
4973 | if (status) |
4974 | goto out; | |
4975 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4976 | if (!status) |
4977 | status = res->count; | |
4978 | out: | |
4979 | return status; | |
4980 | } | |
4981 | ||
4982 | /* | |
4983 | * Decode COMMIT response | |
4984 | */ | |
8687b63a | 4985 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4986 | { |
4987 | struct xdr_stream xdr; | |
4988 | struct compound_hdr hdr; | |
4989 | int status; | |
4990 | ||
4991 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4992 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4993 | if (status) |
4994 | goto out; | |
4995 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4996 | if (status) |
4997 | goto out; | |
4998 | status = decode_putfh(&xdr); | |
4999 | if (status) | |
5000 | goto out; | |
5001 | status = decode_commit(&xdr, res); | |
4f9838c7 TM |
5002 | if (status) |
5003 | goto out; | |
5004 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
5005 | out: |
5006 | return status; | |
5007 | } | |
5008 | ||
5009 | /* | |
5010 | * FSINFO request | |
5011 | */ | |
3dda5e43 BH |
5012 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, |
5013 | struct nfs4_fsinfo_res *res) | |
1da177e4 LT |
5014 | { |
5015 | struct xdr_stream xdr; | |
5016 | struct compound_hdr hdr; | |
5017 | int status; | |
5018 | ||
5019 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5020 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5021 | if (!status) |
5022 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5023 | if (!status) |
5024 | status = decode_putfh(&xdr); | |
5025 | if (!status) | |
3dda5e43 | 5026 | status = decode_fsinfo(&xdr, res->fsinfo); |
1da177e4 LT |
5027 | return status; |
5028 | } | |
5029 | ||
5030 | /* | |
5031 | * PATHCONF request | |
5032 | */ | |
d45b2989 BH |
5033 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, |
5034 | struct nfs4_pathconf_res *res) | |
1da177e4 LT |
5035 | { |
5036 | struct xdr_stream xdr; | |
5037 | struct compound_hdr hdr; | |
5038 | int status; | |
5039 | ||
5040 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5041 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5042 | if (!status) |
5043 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5044 | if (!status) |
5045 | status = decode_putfh(&xdr); | |
5046 | if (!status) | |
d45b2989 | 5047 | status = decode_pathconf(&xdr, res->pathconf); |
1da177e4 LT |
5048 | return status; |
5049 | } | |
5050 | ||
5051 | /* | |
5052 | * STATFS request | |
5053 | */ | |
24ad148a BH |
5054 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, |
5055 | struct nfs4_statfs_res *res) | |
1da177e4 LT |
5056 | { |
5057 | struct xdr_stream xdr; | |
5058 | struct compound_hdr hdr; | |
5059 | int status; | |
5060 | ||
5061 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5062 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5063 | if (!status) |
5064 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5065 | if (!status) |
5066 | status = decode_putfh(&xdr); | |
5067 | if (!status) | |
24ad148a | 5068 | status = decode_statfs(&xdr, res->fsstat); |
1da177e4 LT |
5069 | return status; |
5070 | } | |
5071 | ||
5072 | /* | |
5073 | * GETATTR_BITMAP request | |
5074 | */ | |
8687b63a | 5075 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) |
1da177e4 LT |
5076 | { |
5077 | struct xdr_stream xdr; | |
5078 | struct compound_hdr hdr; | |
5079 | int status; | |
5080 | ||
5081 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
9b7b9fcc AA |
5082 | status = decode_compound_hdr(&xdr, &hdr); |
5083 | if (status) | |
5084 | goto out; | |
5085 | status = decode_sequence(&xdr, &res->seq_res, req); | |
5086 | if (status) | |
1da177e4 LT |
5087 | goto out; |
5088 | if ((status = decode_putfh(&xdr)) != 0) | |
5089 | goto out; | |
5090 | status = decode_server_caps(&xdr, res); | |
5091 | out: | |
5092 | return status; | |
5093 | } | |
5094 | ||
5095 | /* | |
5096 | * Decode RENEW response | |
5097 | */ | |
8687b63a | 5098 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) |
1da177e4 LT |
5099 | { |
5100 | struct xdr_stream xdr; | |
5101 | struct compound_hdr hdr; | |
5102 | int status; | |
5103 | ||
5104 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5105 | status = decode_compound_hdr(&xdr, &hdr); | |
5106 | if (!status) | |
5107 | status = decode_renew(&xdr); | |
5108 | return status; | |
5109 | } | |
5110 | ||
5111 | /* | |
5112 | * a SETCLIENTID request | |
5113 | */ | |
8687b63a | 5114 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, |
adfa6f98 | 5115 | struct nfs_client *clp) |
1da177e4 LT |
5116 | { |
5117 | struct xdr_stream xdr; | |
5118 | struct compound_hdr hdr; | |
5119 | int status; | |
5120 | ||
5121 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5122 | status = decode_compound_hdr(&xdr, &hdr); | |
5123 | if (!status) | |
5124 | status = decode_setclientid(&xdr, clp); | |
1da177e4 LT |
5125 | return status; |
5126 | } | |
5127 | ||
5128 | /* | |
5129 | * a SETCLIENTID_CONFIRM request | |
5130 | */ | |
8687b63a | 5131 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
5132 | { |
5133 | struct xdr_stream xdr; | |
5134 | struct compound_hdr hdr; | |
5135 | int status; | |
5136 | ||
5137 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5138 | status = decode_compound_hdr(&xdr, &hdr); | |
5139 | if (!status) | |
5140 | status = decode_setclientid_confirm(&xdr); | |
5141 | if (!status) | |
5142 | status = decode_putrootfh(&xdr); | |
5143 | if (!status) | |
5144 | status = decode_fsinfo(&xdr, fsinfo); | |
1da177e4 LT |
5145 | return status; |
5146 | } | |
5147 | ||
5148 | /* | |
5149 | * DELEGRETURN request | |
5150 | */ | |
8687b63a | 5151 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) |
1da177e4 LT |
5152 | { |
5153 | struct xdr_stream xdr; | |
5154 | struct compound_hdr hdr; | |
5155 | int status; | |
5156 | ||
5157 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5158 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5159 | if (status) |
5160 | goto out; | |
5161 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
5162 | if (status) | |
fa178f29 TM |
5163 | goto out; |
5164 | status = decode_putfh(&xdr); | |
5165 | if (status != 0) | |
5166 | goto out; | |
5167 | status = decode_delegreturn(&xdr); | |
5168 | decode_getfattr(&xdr, res->fattr, res->server); | |
5169 | out: | |
1da177e4 LT |
5170 | return status; |
5171 | } | |
5172 | ||
683b57b4 TM |
5173 | /* |
5174 | * FS_LOCATIONS request | |
5175 | */ | |
22958463 BH |
5176 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, |
5177 | struct nfs4_fs_locations_res *res) | |
683b57b4 TM |
5178 | { |
5179 | struct xdr_stream xdr; | |
5180 | struct compound_hdr hdr; | |
5181 | int status; | |
5182 | ||
5183 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5184 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5185 | if (status) |
5186 | goto out; | |
5187 | status = decode_sequence(&xdr, &res->seq_res, req); | |
5188 | if (status) | |
683b57b4 TM |
5189 | goto out; |
5190 | if ((status = decode_putfh(&xdr)) != 0) | |
5191 | goto out; | |
5192 | if ((status = decode_lookup(&xdr)) != 0) | |
5193 | goto out; | |
5194 | xdr_enter_page(&xdr, PAGE_SIZE); | |
22958463 BH |
5195 | status = decode_getfattr(&xdr, &res->fs_locations->fattr, |
5196 | res->fs_locations->server); | |
683b57b4 TM |
5197 | out: |
5198 | return status; | |
5199 | } | |
5200 | ||
99fe60d0 BH |
5201 | #if defined(CONFIG_NFS_V4_1) |
5202 | /* | |
5203 | * EXCHANGE_ID request | |
5204 | */ | |
5205 | static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, | |
5206 | void *res) | |
5207 | { | |
5208 | struct xdr_stream xdr; | |
5209 | struct compound_hdr hdr; | |
5210 | int status; | |
5211 | ||
5212 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5213 | status = decode_compound_hdr(&xdr, &hdr); | |
5214 | if (!status) | |
5215 | status = decode_exchange_id(&xdr, res); | |
5216 | return status; | |
5217 | } | |
2050f0cc | 5218 | |
fc931582 AA |
5219 | /* |
5220 | * a CREATE_SESSION request | |
5221 | */ | |
5222 | static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, | |
5223 | struct nfs41_create_session_res *res) | |
5224 | { | |
5225 | struct xdr_stream xdr; | |
5226 | struct compound_hdr hdr; | |
5227 | int status; | |
5228 | ||
5229 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5230 | status = decode_compound_hdr(&xdr, &hdr); | |
5231 | if (!status) | |
5232 | status = decode_create_session(&xdr, res); | |
5233 | return status; | |
5234 | } | |
5235 | ||
0f3e66c6 AA |
5236 | /* |
5237 | * a DESTROY_SESSION request | |
5238 | */ | |
5239 | static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, | |
5240 | void *dummy) | |
5241 | { | |
5242 | struct xdr_stream xdr; | |
5243 | struct compound_hdr hdr; | |
5244 | int status; | |
5245 | ||
5246 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5247 | status = decode_compound_hdr(&xdr, &hdr); | |
5248 | if (!status) | |
5249 | status = decode_destroy_session(&xdr, dummy); | |
5250 | return status; | |
5251 | } | |
5252 | ||
fc01cea9 AA |
5253 | /* |
5254 | * a SEQUENCE request | |
5255 | */ | |
5256 | static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, | |
5257 | struct nfs4_sequence_res *res) | |
5258 | { | |
5259 | struct xdr_stream xdr; | |
5260 | struct compound_hdr hdr; | |
5261 | int status; | |
5262 | ||
5263 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5264 | status = decode_compound_hdr(&xdr, &hdr); | |
5265 | if (!status) | |
5266 | status = decode_sequence(&xdr, res, rqstp); | |
5267 | return status; | |
5268 | } | |
5269 | ||
2050f0cc AA |
5270 | /* |
5271 | * a GET_LEASE_TIME request | |
5272 | */ | |
5273 | static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, | |
5274 | struct nfs4_get_lease_time_res *res) | |
5275 | { | |
5276 | struct xdr_stream xdr; | |
5277 | struct compound_hdr hdr; | |
5278 | int status; | |
5279 | ||
5280 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5281 | status = decode_compound_hdr(&xdr, &hdr); | |
5282 | if (!status) | |
5283 | status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); | |
5284 | if (!status) | |
5285 | status = decode_putrootfh(&xdr); | |
5286 | if (!status) | |
5287 | status = decode_fsinfo(&xdr, res->lr_fsinfo); | |
5288 | return status; | |
5289 | } | |
99fe60d0 BH |
5290 | #endif /* CONFIG_NFS_V4_1 */ |
5291 | ||
0dbb4c67 | 5292 | __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) |
1da177e4 LT |
5293 | { |
5294 | uint32_t bitmap[2] = {0}; | |
5295 | uint32_t len; | |
5296 | ||
5297 | if (!*p++) { | |
5298 | if (!*p) | |
5299 | return ERR_PTR(-EAGAIN); | |
5300 | entry->eof = 1; | |
5301 | return ERR_PTR(-EBADCOOKIE); | |
5302 | } | |
5303 | ||
5304 | entry->prev_cookie = entry->cookie; | |
5305 | p = xdr_decode_hyper(p, &entry->cookie); | |
5306 | entry->len = ntohl(*p++); | |
5307 | entry->name = (const char *) p; | |
5308 | p += XDR_QUADLEN(entry->len); | |
5309 | ||
5310 | /* | |
5311 | * In case the server doesn't return an inode number, | |
5312 | * we fake one here. (We don't use inode number 0, | |
5313 | * since glibc seems to choke on it...) | |
5314 | */ | |
5315 | entry->ino = 1; | |
5316 | ||
5317 | len = ntohl(*p++); /* bitmap length */ | |
5318 | if (len-- > 0) { | |
5319 | bitmap[0] = ntohl(*p++); | |
5320 | if (len-- > 0) { | |
5321 | bitmap[1] = ntohl(*p++); | |
5322 | p += len; | |
5323 | } | |
5324 | } | |
5325 | len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ | |
5326 | if (len > 0) { | |
97d312d0 MN |
5327 | if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { |
5328 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; | |
5329 | /* Ignore the return value of rdattr_error for now */ | |
5330 | p++; | |
5331 | len--; | |
5332 | } | |
1da177e4 LT |
5333 | if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) |
5334 | xdr_decode_hyper(p, &entry->ino); | |
5335 | else if (bitmap[0] == FATTR4_WORD0_FILEID) | |
5336 | xdr_decode_hyper(p, &entry->ino); | |
5337 | p += len; | |
5338 | } | |
5339 | ||
5340 | entry->eof = !p[0] && p[1]; | |
5341 | return p; | |
5342 | } | |
5343 | ||
5344 | /* | |
5345 | * We need to translate between nfs status return values and | |
5346 | * the local errno values which may not be the same. | |
5347 | */ | |
5348 | static struct { | |
5349 | int stat; | |
5350 | int errno; | |
5351 | } nfs_errtbl[] = { | |
5352 | { NFS4_OK, 0 }, | |
856dff3d BH |
5353 | { NFS4ERR_PERM, -EPERM }, |
5354 | { NFS4ERR_NOENT, -ENOENT }, | |
5355 | { NFS4ERR_IO, -errno_NFSERR_IO}, | |
5356 | { NFS4ERR_NXIO, -ENXIO }, | |
5357 | { NFS4ERR_ACCESS, -EACCES }, | |
5358 | { NFS4ERR_EXIST, -EEXIST }, | |
5359 | { NFS4ERR_XDEV, -EXDEV }, | |
5360 | { NFS4ERR_NOTDIR, -ENOTDIR }, | |
5361 | { NFS4ERR_ISDIR, -EISDIR }, | |
5362 | { NFS4ERR_INVAL, -EINVAL }, | |
5363 | { NFS4ERR_FBIG, -EFBIG }, | |
5364 | { NFS4ERR_NOSPC, -ENOSPC }, | |
5365 | { NFS4ERR_ROFS, -EROFS }, | |
5366 | { NFS4ERR_MLINK, -EMLINK }, | |
5367 | { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, | |
5368 | { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, | |
5369 | { NFS4ERR_DQUOT, -EDQUOT }, | |
5370 | { NFS4ERR_STALE, -ESTALE }, | |
5371 | { NFS4ERR_BADHANDLE, -EBADHANDLE }, | |
5372 | { NFS4ERR_BADOWNER, -EINVAL }, | |
5373 | { NFS4ERR_BADNAME, -EINVAL }, | |
5374 | { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, | |
5375 | { NFS4ERR_NOTSUPP, -ENOTSUPP }, | |
5376 | { NFS4ERR_TOOSMALL, -ETOOSMALL }, | |
5377 | { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, | |
5378 | { NFS4ERR_BADTYPE, -EBADTYPE }, | |
5379 | { NFS4ERR_LOCKED, -EAGAIN }, | |
5380 | { NFS4ERR_RESOURCE, -EREMOTEIO }, | |
5381 | { NFS4ERR_SYMLINK, -ELOOP }, | |
5382 | { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, | |
5383 | { NFS4ERR_DEADLOCK, -EDEADLK }, | |
5384 | { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs | |
1da177e4 LT |
5385 | * to be handled by a |
5386 | * middle-layer. | |
5387 | */ | |
856dff3d | 5388 | { -1, -EIO } |
1da177e4 LT |
5389 | }; |
5390 | ||
5391 | /* | |
5392 | * Convert an NFS error code to a local one. | |
5393 | * This one is used jointly by NFSv2 and NFSv3. | |
5394 | */ | |
5395 | static int | |
0a8ea437 | 5396 | nfs4_stat_to_errno(int stat) |
1da177e4 LT |
5397 | { |
5398 | int i; | |
5399 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { | |
5400 | if (nfs_errtbl[i].stat == stat) | |
5401 | return nfs_errtbl[i].errno; | |
5402 | } | |
5403 | if (stat <= 10000 || stat > 10100) { | |
5404 | /* The server is looney tunes. */ | |
856dff3d | 5405 | return -ESERVERFAULT; |
1da177e4 LT |
5406 | } |
5407 | /* If we cannot translate the error, the recovery routines should | |
5408 | * handle it. | |
5409 | * Note: remaining NFSv4 error codes have values > 10000, so should | |
5410 | * not conflict with native Linux error codes. | |
5411 | */ | |
856dff3d | 5412 | return -stat; |
1da177e4 LT |
5413 | } |
5414 | ||
1da177e4 LT |
5415 | #define PROC(proc, argtype, restype) \ |
5416 | [NFSPROC4_CLNT_##proc] = { \ | |
5417 | .p_proc = NFSPROC4_COMPOUND, \ | |
5418 | .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ | |
5419 | .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ | |
2bea90d4 CL |
5420 | .p_arglen = NFS4_##argtype##_sz, \ |
5421 | .p_replen = NFS4_##restype##_sz, \ | |
cc0175c1 CL |
5422 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
5423 | .p_name = #proc, \ | |
05d564fe | 5424 | } |
1da177e4 LT |
5425 | |
5426 | struct rpc_procinfo nfs4_procedures[] = { | |
5427 | PROC(READ, enc_read, dec_read), | |
5428 | PROC(WRITE, enc_write, dec_write), | |
5429 | PROC(COMMIT, enc_commit, dec_commit), | |
5430 | PROC(OPEN, enc_open, dec_open), | |
5431 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), | |
5432 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), | |
5433 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), | |
5434 | PROC(CLOSE, enc_close, dec_close), | |
5435 | PROC(SETATTR, enc_setattr, dec_setattr), | |
5436 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), | |
5437 | PROC(RENEW, enc_renew, dec_renew), | |
5438 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), | |
5439 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), | |
5440 | PROC(LOCK, enc_lock, dec_lock), | |
5441 | PROC(LOCKT, enc_lockt, dec_lockt), | |
5442 | PROC(LOCKU, enc_locku, dec_locku), | |
5443 | PROC(ACCESS, enc_access, dec_access), | |
5444 | PROC(GETATTR, enc_getattr, dec_getattr), | |
5445 | PROC(LOOKUP, enc_lookup, dec_lookup), | |
5446 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), | |
5447 | PROC(REMOVE, enc_remove, dec_remove), | |
5448 | PROC(RENAME, enc_rename, dec_rename), | |
5449 | PROC(LINK, enc_link, dec_link), | |
5450 | PROC(SYMLINK, enc_symlink, dec_symlink), | |
5451 | PROC(CREATE, enc_create, dec_create), | |
5452 | PROC(PATHCONF, enc_pathconf, dec_pathconf), | |
5453 | PROC(STATFS, enc_statfs, dec_statfs), | |
5454 | PROC(READLINK, enc_readlink, dec_readlink), | |
5455 | PROC(READDIR, enc_readdir, dec_readdir), | |
5456 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), | |
5457 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), | |
029d105e | 5458 | PROC(GETACL, enc_getacl, dec_getacl), |
23ec6965 | 5459 | PROC(SETACL, enc_setacl, dec_setacl), |
683b57b4 | 5460 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), |
99fe60d0 BH |
5461 | #if defined(CONFIG_NFS_V4_1) |
5462 | PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), | |
fc931582 | 5463 | PROC(CREATE_SESSION, enc_create_session, dec_create_session), |
0f3e66c6 | 5464 | PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), |
fc01cea9 | 5465 | PROC(SEQUENCE, enc_sequence, dec_sequence), |
2050f0cc | 5466 | PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), |
99fe60d0 | 5467 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 LT |
5468 | }; |
5469 | ||
5470 | struct rpc_version nfs_version4 = { | |
5471 | .number = 4, | |
e8c96f8c | 5472 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
1da177e4 LT |
5473 | .procs = nfs4_procedures |
5474 | }; | |
5475 | ||
5476 | /* | |
5477 | * Local variables: | |
5478 | * c-basic-offset: 8 | |
5479 | * End: | |
5480 | */ |