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