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1da177e4 LT |
1 | /* |
2 | * fs/nfs/nfs4xdr.c | |
3 | * | |
4 | * Client-side XDR for NFSv4. | |
5 | * | |
6 | * Copyright (c) 2002 The Regents of the University of Michigan. | |
7 | * All rights reserved. | |
8 | * | |
9 | * Kendrick Smith <kmsmith@umich.edu> | |
10 | * Andy Adamson <andros@umich.edu> | |
6c0195a4 | 11 | * |
1da177e4 LT |
12 | * Redistribution and use in source and binary forms, with or without |
13 | * modification, are permitted provided that the following conditions | |
14 | * are met: | |
15 | * | |
16 | * 1. Redistributions of source code must retain the above copyright | |
17 | * notice, this list of conditions and the following disclaimer. | |
18 | * 2. Redistributions in binary form must reproduce the above copyright | |
19 | * notice, this list of conditions and the following disclaimer in the | |
20 | * documentation and/or other materials provided with the distribution. | |
21 | * 3. Neither the name of the University nor the names of its | |
22 | * contributors may be used to endorse or promote products derived | |
23 | * from this software without specific prior written permission. | |
24 | * | |
25 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
26 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
27 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
28 | * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
29 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
32 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
33 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
34 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
35 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
36 | */ | |
37 | ||
38 | #include <linux/param.h> | |
39 | #include <linux/time.h> | |
40 | #include <linux/mm.h> | |
41 | #include <linux/slab.h> | |
42 | #include <linux/utsname.h> | |
43 | #include <linux/errno.h> | |
44 | #include <linux/string.h> | |
45 | #include <linux/in.h> | |
46 | #include <linux/pagemap.h> | |
47 | #include <linux/proc_fs.h> | |
48 | #include <linux/kdev_t.h> | |
49 | #include <linux/sunrpc/clnt.h> | |
50 | #include <linux/nfs.h> | |
51 | #include <linux/nfs4.h> | |
52 | #include <linux/nfs_fs.h> | |
53 | #include <linux/nfs_idmap.h> | |
4ce79717 | 54 | #include "nfs4_fs.h" |
1da177e4 LT |
55 | |
56 | #define NFSDBG_FACILITY NFSDBG_XDR | |
57 | ||
58 | /* Mapping from NFS error code to "errno" error code. */ | |
59 | #define errno_NFSERR_IO EIO | |
60 | ||
0a8ea437 | 61 | static int nfs4_stat_to_errno(int); |
1da177e4 LT |
62 | |
63 | /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ | |
64 | #ifdef DEBUG | |
65 | #define NFS4_MAXTAGLEN 20 | |
66 | #else | |
67 | #define NFS4_MAXTAGLEN 0 | |
68 | #endif | |
69 | ||
6c0195a4 | 70 | /* lock,open owner id: |
9f958ab8 | 71 | * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) |
1da177e4 | 72 | */ |
9f958ab8 TM |
73 | #define open_owner_id_maxsz (1 + 4) |
74 | #define lock_owner_id_maxsz (1 + 4) | |
9104a55d | 75 | #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
1da177e4 LT |
76 | #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) |
77 | #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) | |
78 | #define op_encode_hdr_maxsz (1) | |
79 | #define op_decode_hdr_maxsz (2) | |
9104a55d TM |
80 | #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) |
81 | #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
82 | #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
83 | #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1da177e4 LT |
84 | #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ |
85 | (NFS4_FHSIZE >> 2)) | |
86 | #define decode_putfh_maxsz (op_decode_hdr_maxsz) | |
87 | #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) | |
88 | #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) | |
89 | #define encode_getfh_maxsz (op_encode_hdr_maxsz) | |
90 | #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ | |
91 | ((3+NFS4_FHSIZE) >> 2)) | |
96928206 BF |
92 | #define nfs4_fattr_bitmap_maxsz 3 |
93 | #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) | |
1da177e4 LT |
94 | #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) |
95 | #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) | |
bd625ba8 TM |
96 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
97 | #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
96928206 BF |
98 | /* This is based on getfattr, which uses the most attributes: */ |
99 | #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ | |
bd625ba8 | 100 | 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) |
96928206 BF |
101 | #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ |
102 | nfs4_fattr_value_maxsz) | |
103 | #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) | |
9104a55d TM |
104 | #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ |
105 | 1 + 2 + 1 + \ | |
106 | nfs4_owner_maxsz + \ | |
107 | nfs4_group_maxsz + \ | |
108 | 4 + 4) | |
1da177e4 LT |
109 | #define encode_savefh_maxsz (op_encode_hdr_maxsz) |
110 | #define decode_savefh_maxsz (op_decode_hdr_maxsz) | |
56ae19f3 TM |
111 | #define encode_restorefh_maxsz (op_encode_hdr_maxsz) |
112 | #define decode_restorefh_maxsz (op_decode_hdr_maxsz) | |
2f42b5d0 | 113 | #define encode_fsinfo_maxsz (encode_getattr_maxsz) |
1da177e4 LT |
114 | #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) |
115 | #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) | |
116 | #define decode_renew_maxsz (op_decode_hdr_maxsz) | |
117 | #define encode_setclientid_maxsz \ | |
118 | (op_encode_hdr_maxsz + \ | |
cc38bac3 CL |
119 | XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ |
120 | XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ | |
121 | 1 /* sc_prog */ + \ | |
122 | XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ | |
123 | XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ | |
124 | 1) /* sc_cb_ident */ | |
1da177e4 LT |
125 | #define decode_setclientid_maxsz \ |
126 | (op_decode_hdr_maxsz + \ | |
127 | 2 + \ | |
128 | 1024) /* large value for CLID_INUSE */ | |
129 | #define encode_setclientid_confirm_maxsz \ | |
130 | (op_encode_hdr_maxsz + \ | |
131 | 3 + (NFS4_VERIFIER_SIZE >> 2)) | |
132 | #define decode_setclientid_confirm_maxsz \ | |
133 | (op_decode_hdr_maxsz) | |
e6889620 TM |
134 | #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) |
135 | #define decode_lookup_maxsz (op_decode_hdr_maxsz) | |
2cebf828 TM |
136 | #define encode_share_access_maxsz \ |
137 | (2) | |
9104a55d | 138 | #define encode_createmode_maxsz (1 + encode_attrs_maxsz) |
2cebf828 TM |
139 | #define encode_opentype_maxsz (1 + encode_createmode_maxsz) |
140 | #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) | |
141 | #define encode_open_maxsz (op_encode_hdr_maxsz + \ | |
142 | 2 + encode_share_access_maxsz + 2 + \ | |
143 | open_owner_id_maxsz + \ | |
144 | encode_opentype_maxsz + \ | |
145 | encode_claim_null_maxsz) | |
146 | #define decode_ace_maxsz (3 + nfs4_owner_maxsz) | |
9104a55d | 147 | #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ |
2cebf828 TM |
148 | decode_ace_maxsz) |
149 | #define decode_change_info_maxsz (5) | |
150 | #define decode_open_maxsz (op_decode_hdr_maxsz + \ | |
9104a55d | 151 | decode_stateid_maxsz + \ |
2cebf828 TM |
152 | decode_change_info_maxsz + 1 + \ |
153 | nfs4_fattr_bitmap_maxsz + \ | |
154 | decode_delegation_maxsz) | |
9104a55d TM |
155 | #define encode_open_confirm_maxsz \ |
156 | (op_encode_hdr_maxsz + \ | |
157 | encode_stateid_maxsz + 1) | |
158 | #define decode_open_confirm_maxsz \ | |
159 | (op_decode_hdr_maxsz + \ | |
160 | decode_stateid_maxsz) | |
161 | #define encode_open_downgrade_maxsz \ | |
162 | (op_encode_hdr_maxsz + \ | |
163 | encode_stateid_maxsz + 1 + \ | |
164 | encode_share_access_maxsz) | |
165 | #define decode_open_downgrade_maxsz \ | |
166 | (op_decode_hdr_maxsz + \ | |
167 | decode_stateid_maxsz) | |
168 | #define encode_close_maxsz (op_encode_hdr_maxsz + \ | |
169 | 1 + encode_stateid_maxsz) | |
170 | #define decode_close_maxsz (op_decode_hdr_maxsz + \ | |
171 | decode_stateid_maxsz) | |
172 | #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ | |
173 | encode_stateid_maxsz + \ | |
174 | encode_attrs_maxsz) | |
175 | #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ | |
176 | nfs4_fattr_bitmap_maxsz) | |
177 | #define encode_read_maxsz (op_encode_hdr_maxsz + \ | |
178 | encode_stateid_maxsz + 3) | |
179 | #define decode_read_maxsz (op_decode_hdr_maxsz + 2) | |
180 | #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ | |
181 | 2 + encode_verifier_maxsz + 5) | |
182 | #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ | |
183 | decode_verifier_maxsz) | |
184 | #define encode_readlink_maxsz (op_encode_hdr_maxsz) | |
185 | #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) | |
186 | #define encode_write_maxsz (op_encode_hdr_maxsz + \ | |
187 | encode_stateid_maxsz + 4) | |
188 | #define decode_write_maxsz (op_decode_hdr_maxsz + \ | |
189 | 2 + decode_verifier_maxsz) | |
190 | #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) | |
191 | #define decode_commit_maxsz (op_decode_hdr_maxsz + \ | |
192 | decode_verifier_maxsz) | |
1da177e4 LT |
193 | #define encode_remove_maxsz (op_encode_hdr_maxsz + \ |
194 | nfs4_name_maxsz) | |
6ce18391 BH |
195 | #define decode_remove_maxsz (op_decode_hdr_maxsz + \ |
196 | decode_change_info_maxsz) | |
1da177e4 LT |
197 | #define encode_rename_maxsz (op_encode_hdr_maxsz + \ |
198 | 2 * nfs4_name_maxsz) | |
6ce18391 BH |
199 | #define decode_rename_maxsz (op_decode_hdr_maxsz + \ |
200 | decode_change_info_maxsz + \ | |
201 | decode_change_info_maxsz) | |
1da177e4 LT |
202 | #define encode_link_maxsz (op_encode_hdr_maxsz + \ |
203 | nfs4_name_maxsz) | |
6ce18391 | 204 | #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) |
9104a55d TM |
205 | #define encode_lock_maxsz (op_encode_hdr_maxsz + \ |
206 | 7 + \ | |
207 | 1 + encode_stateid_maxsz + 8) | |
208 | #define decode_lock_denied_maxsz \ | |
209 | (8 + decode_lockowner_maxsz) | |
210 | #define decode_lock_maxsz (op_decode_hdr_maxsz + \ | |
211 | decode_lock_denied_maxsz) | |
212 | #define encode_lockt_maxsz (op_encode_hdr_maxsz + 12) | |
213 | #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ | |
214 | decode_lock_denied_maxsz) | |
215 | #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ | |
216 | encode_stateid_maxsz + \ | |
217 | 4) | |
218 | #define decode_locku_maxsz (op_decode_hdr_maxsz + \ | |
219 | decode_stateid_maxsz) | |
220 | #define encode_access_maxsz (op_encode_hdr_maxsz + 1) | |
221 | #define decode_access_maxsz (op_decode_hdr_maxsz + 2) | |
1da177e4 LT |
222 | #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ |
223 | 1 + nfs4_name_maxsz + \ | |
94a6d753 | 224 | 1 + \ |
96928206 | 225 | nfs4_fattr_maxsz) |
1da177e4 LT |
226 | #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) |
227 | #define encode_create_maxsz (op_encode_hdr_maxsz + \ | |
9104a55d TM |
228 | 1 + 2 + nfs4_name_maxsz + \ |
229 | encode_attrs_maxsz) | |
2cebf828 TM |
230 | #define decode_create_maxsz (op_decode_hdr_maxsz + \ |
231 | decode_change_info_maxsz + \ | |
232 | nfs4_fattr_bitmap_maxsz) | |
9104a55d TM |
233 | #define encode_statfs_maxsz (encode_getattr_maxsz) |
234 | #define decode_statfs_maxsz (decode_getattr_maxsz) | |
1da177e4 LT |
235 | #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) |
236 | #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) | |
9104a55d TM |
237 | #define encode_getacl_maxsz (encode_getattr_maxsz) |
238 | #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ | |
239 | nfs4_fattr_bitmap_maxsz + 1) | |
240 | #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ | |
241 | encode_stateid_maxsz + 3) | |
242 | #define decode_setacl_maxsz (decode_setattr_maxsz) | |
e6889620 TM |
243 | #define encode_fs_locations_maxsz \ |
244 | (encode_getattr_maxsz) | |
245 | #define decode_fs_locations_maxsz \ | |
246 | (0) | |
9b7b9fcc AA |
247 | |
248 | #if defined(CONFIG_NFS_V4_1) | |
fc931582 AA |
249 | #define NFS4_MAX_MACHINE_NAME_LEN (64) |
250 | ||
99fe60d0 BH |
251 | #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ |
252 | encode_verifier_maxsz + \ | |
253 | 1 /* co_ownerid.len */ + \ | |
254 | XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ | |
255 | 1 /* flags */ + \ | |
256 | 1 /* spa_how */ + \ | |
257 | 0 /* SP4_NONE (for now) */ + \ | |
258 | 1 /* zero implemetation id array */) | |
259 | #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ | |
260 | 2 /* eir_clientid */ + \ | |
261 | 1 /* eir_sequenceid */ + \ | |
262 | 1 /* eir_flags */ + \ | |
263 | 1 /* spr_how */ + \ | |
264 | 0 /* SP4_NONE (for now) */ + \ | |
265 | 2 /* eir_server_owner.so_minor_id */ + \ | |
266 | /* eir_server_owner.so_major_id<> */ \ | |
267 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ | |
268 | /* eir_server_scope<> */ \ | |
269 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ | |
270 | 1 /* eir_server_impl_id array length */ + \ | |
271 | 0 /* ignored eir_server_impl_id contents */) | |
fc931582 AA |
272 | #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) |
273 | #define decode_channel_attrs_maxsz (6 + \ | |
274 | 1 /* ca_rdma_ird.len */ + \ | |
275 | 1 /* ca_rdma_ird */) | |
276 | #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ | |
277 | 2 /* csa_clientid */ + \ | |
278 | 1 /* csa_sequence */ + \ | |
279 | 1 /* csa_flags */ + \ | |
280 | encode_channel_attrs_maxsz + \ | |
281 | encode_channel_attrs_maxsz + \ | |
282 | 1 /* csa_cb_program */ + \ | |
283 | 1 /* csa_sec_parms.len (1) */ + \ | |
284 | 1 /* cb_secflavor (AUTH_SYS) */ + \ | |
285 | 1 /* stamp */ + \ | |
286 | 1 /* machinename.len */ + \ | |
287 | XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ | |
288 | 1 /* uid */ + \ | |
289 | 1 /* gid */ + \ | |
290 | 1 /* gids.len (0) */) | |
291 | #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ | |
292 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ | |
293 | 1 /* csr_sequence */ + \ | |
294 | 1 /* csr_flags */ + \ | |
295 | decode_channel_attrs_maxsz + \ | |
296 | decode_channel_attrs_maxsz) | |
0f3e66c6 AA |
297 | #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) |
298 | #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) | |
fc01cea9 AA |
299 | #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ |
300 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) | |
301 | #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ | |
302 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) | |
9b7b9fcc AA |
303 | #else /* CONFIG_NFS_V4_1 */ |
304 | #define encode_sequence_maxsz 0 | |
305 | #define decode_sequence_maxsz 0 | |
306 | #endif /* CONFIG_NFS_V4_1 */ | |
307 | ||
1da177e4 LT |
308 | #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ |
309 | #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ | |
310 | #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 311 | encode_sequence_maxsz + \ |
1da177e4 | 312 | encode_putfh_maxsz + \ |
9104a55d | 313 | encode_read_maxsz) |
1da177e4 | 314 | #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 315 | decode_sequence_maxsz + \ |
1da177e4 | 316 | decode_putfh_maxsz + \ |
9104a55d | 317 | decode_read_maxsz) |
1da177e4 | 318 | #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 319 | encode_sequence_maxsz + \ |
1da177e4 | 320 | encode_putfh_maxsz + \ |
9104a55d | 321 | encode_readlink_maxsz) |
1da177e4 | 322 | #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 323 | decode_sequence_maxsz + \ |
1da177e4 | 324 | decode_putfh_maxsz + \ |
9104a55d | 325 | decode_readlink_maxsz) |
1da177e4 | 326 | #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 327 | encode_sequence_maxsz + \ |
1da177e4 | 328 | encode_putfh_maxsz + \ |
9104a55d | 329 | encode_readdir_maxsz) |
1da177e4 | 330 | #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 331 | decode_sequence_maxsz + \ |
1da177e4 | 332 | decode_putfh_maxsz + \ |
9104a55d | 333 | decode_readdir_maxsz) |
1da177e4 | 334 | #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 335 | encode_sequence_maxsz + \ |
1da177e4 | 336 | encode_putfh_maxsz + \ |
9104a55d | 337 | encode_write_maxsz + \ |
4f9838c7 | 338 | encode_getattr_maxsz) |
1da177e4 | 339 | #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 340 | decode_sequence_maxsz + \ |
1da177e4 | 341 | decode_putfh_maxsz + \ |
9104a55d | 342 | decode_write_maxsz + \ |
4f9838c7 | 343 | decode_getattr_maxsz) |
1da177e4 | 344 | #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 345 | encode_sequence_maxsz + \ |
1da177e4 | 346 | encode_putfh_maxsz + \ |
9104a55d | 347 | encode_commit_maxsz + \ |
4f9838c7 | 348 | encode_getattr_maxsz) |
1da177e4 | 349 | #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 350 | decode_sequence_maxsz + \ |
1da177e4 | 351 | decode_putfh_maxsz + \ |
9104a55d | 352 | decode_commit_maxsz + \ |
4f9838c7 | 353 | decode_getattr_maxsz) |
1da177e4 | 354 | #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 355 | encode_sequence_maxsz + \ |
2cebf828 TM |
356 | encode_putfh_maxsz + \ |
357 | encode_savefh_maxsz + \ | |
358 | encode_open_maxsz + \ | |
359 | encode_getfh_maxsz + \ | |
360 | encode_getattr_maxsz + \ | |
361 | encode_restorefh_maxsz + \ | |
362 | encode_getattr_maxsz) | |
1da177e4 | 363 | #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 364 | decode_sequence_maxsz + \ |
2cebf828 TM |
365 | decode_putfh_maxsz + \ |
366 | decode_savefh_maxsz + \ | |
367 | decode_open_maxsz + \ | |
368 | decode_getfh_maxsz + \ | |
369 | decode_getattr_maxsz + \ | |
370 | decode_restorefh_maxsz + \ | |
371 | decode_getattr_maxsz) | |
9104a55d TM |
372 | #define NFS4_enc_open_confirm_sz \ |
373 | (compound_encode_hdr_maxsz + \ | |
374 | encode_putfh_maxsz + \ | |
375 | encode_open_confirm_maxsz) | |
376 | #define NFS4_dec_open_confirm_sz \ | |
377 | (compound_decode_hdr_maxsz + \ | |
378 | decode_putfh_maxsz + \ | |
379 | decode_open_confirm_maxsz) | |
1da177e4 | 380 | #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 381 | encode_sequence_maxsz + \ |
1da177e4 | 382 | encode_putfh_maxsz + \ |
2cebf828 TM |
383 | encode_open_maxsz + \ |
384 | encode_getattr_maxsz) | |
1da177e4 | 385 | #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 386 | decode_sequence_maxsz + \ |
1da177e4 | 387 | decode_putfh_maxsz + \ |
2cebf828 TM |
388 | decode_open_maxsz + \ |
389 | decode_getattr_maxsz) | |
1da177e4 LT |
390 | #define NFS4_enc_open_downgrade_sz \ |
391 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 392 | encode_sequence_maxsz + \ |
9104a55d TM |
393 | encode_putfh_maxsz + \ |
394 | encode_open_downgrade_maxsz + \ | |
395 | encode_getattr_maxsz) | |
1da177e4 LT |
396 | #define NFS4_dec_open_downgrade_sz \ |
397 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 398 | decode_sequence_maxsz + \ |
9104a55d TM |
399 | decode_putfh_maxsz + \ |
400 | decode_open_downgrade_maxsz + \ | |
401 | decode_getattr_maxsz) | |
402 | #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 403 | encode_sequence_maxsz + \ |
9104a55d TM |
404 | encode_putfh_maxsz + \ |
405 | encode_close_maxsz + \ | |
406 | encode_getattr_maxsz) | |
407 | #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 408 | decode_sequence_maxsz + \ |
9104a55d TM |
409 | decode_putfh_maxsz + \ |
410 | decode_close_maxsz + \ | |
411 | decode_getattr_maxsz) | |
412 | #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 413 | encode_sequence_maxsz + \ |
9104a55d TM |
414 | encode_putfh_maxsz + \ |
415 | encode_setattr_maxsz + \ | |
416 | encode_getattr_maxsz) | |
417 | #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 418 | decode_sequence_maxsz + \ |
9104a55d TM |
419 | decode_putfh_maxsz + \ |
420 | decode_setattr_maxsz + \ | |
421 | decode_getattr_maxsz) | |
1da177e4 | 422 | #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 423 | encode_sequence_maxsz + \ |
1da177e4 LT |
424 | encode_putfh_maxsz + \ |
425 | encode_fsinfo_maxsz) | |
426 | #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 427 | decode_sequence_maxsz + \ |
1da177e4 LT |
428 | decode_putfh_maxsz + \ |
429 | decode_fsinfo_maxsz) | |
430 | #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ | |
431 | encode_renew_maxsz) | |
432 | #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ | |
433 | decode_renew_maxsz) | |
434 | #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ | |
435 | encode_setclientid_maxsz) | |
436 | #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ | |
437 | decode_setclientid_maxsz) | |
438 | #define NFS4_enc_setclientid_confirm_sz \ | |
439 | (compound_encode_hdr_maxsz + \ | |
440 | encode_setclientid_confirm_maxsz + \ | |
441 | encode_putrootfh_maxsz + \ | |
442 | encode_fsinfo_maxsz) | |
443 | #define NFS4_dec_setclientid_confirm_sz \ | |
444 | (compound_decode_hdr_maxsz + \ | |
445 | decode_setclientid_confirm_maxsz + \ | |
446 | decode_putrootfh_maxsz + \ | |
447 | decode_fsinfo_maxsz) | |
448 | #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 449 | encode_sequence_maxsz + \ |
1da177e4 | 450 | encode_putfh_maxsz + \ |
9104a55d | 451 | encode_lock_maxsz) |
1da177e4 | 452 | #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 453 | decode_sequence_maxsz + \ |
1da177e4 | 454 | decode_putfh_maxsz + \ |
9104a55d | 455 | decode_lock_maxsz) |
1da177e4 | 456 | #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 457 | encode_sequence_maxsz + \ |
1da177e4 | 458 | encode_putfh_maxsz + \ |
9104a55d TM |
459 | encode_lockt_maxsz) |
460 | #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 461 | decode_sequence_maxsz + \ |
9104a55d TM |
462 | decode_putfh_maxsz + \ |
463 | decode_lockt_maxsz) | |
1da177e4 | 464 | #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 465 | encode_sequence_maxsz + \ |
1da177e4 | 466 | encode_putfh_maxsz + \ |
9104a55d | 467 | encode_locku_maxsz) |
1da177e4 | 468 | #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 469 | decode_sequence_maxsz + \ |
1da177e4 | 470 | decode_putfh_maxsz + \ |
9104a55d | 471 | decode_locku_maxsz) |
1da177e4 | 472 | #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 473 | encode_sequence_maxsz + \ |
1da177e4 | 474 | encode_putfh_maxsz + \ |
76b32999 TM |
475 | encode_access_maxsz + \ |
476 | encode_getattr_maxsz) | |
1da177e4 | 477 | #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 478 | decode_sequence_maxsz + \ |
1da177e4 | 479 | decode_putfh_maxsz + \ |
76b32999 TM |
480 | decode_access_maxsz + \ |
481 | decode_getattr_maxsz) | |
1da177e4 | 482 | #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 483 | encode_sequence_maxsz + \ |
1da177e4 LT |
484 | encode_putfh_maxsz + \ |
485 | encode_getattr_maxsz) | |
486 | #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 487 | decode_sequence_maxsz + \ |
1da177e4 LT |
488 | decode_putfh_maxsz + \ |
489 | decode_getattr_maxsz) | |
490 | #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 491 | encode_sequence_maxsz + \ |
1da177e4 LT |
492 | encode_putfh_maxsz + \ |
493 | encode_lookup_maxsz + \ | |
494 | encode_getattr_maxsz + \ | |
495 | encode_getfh_maxsz) | |
496 | #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 497 | decode_sequence_maxsz + \ |
1da177e4 | 498 | decode_putfh_maxsz + \ |
e6889620 | 499 | decode_lookup_maxsz + \ |
1da177e4 LT |
500 | decode_getattr_maxsz + \ |
501 | decode_getfh_maxsz) | |
502 | #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 503 | encode_sequence_maxsz + \ |
1da177e4 LT |
504 | encode_putrootfh_maxsz + \ |
505 | encode_getattr_maxsz + \ | |
506 | encode_getfh_maxsz) | |
507 | #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 508 | decode_sequence_maxsz + \ |
1da177e4 LT |
509 | decode_putrootfh_maxsz + \ |
510 | decode_getattr_maxsz + \ | |
511 | decode_getfh_maxsz) | |
512 | #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 513 | encode_sequence_maxsz + \ |
1da177e4 | 514 | encode_putfh_maxsz + \ |
16e42959 TM |
515 | encode_remove_maxsz + \ |
516 | encode_getattr_maxsz) | |
1da177e4 | 517 | #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 518 | decode_sequence_maxsz + \ |
1da177e4 | 519 | decode_putfh_maxsz + \ |
6ce18391 | 520 | decode_remove_maxsz + \ |
16e42959 | 521 | decode_getattr_maxsz) |
1da177e4 | 522 | #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 523 | encode_sequence_maxsz + \ |
1da177e4 LT |
524 | encode_putfh_maxsz + \ |
525 | encode_savefh_maxsz + \ | |
526 | encode_putfh_maxsz + \ | |
6caf2c82 TM |
527 | encode_rename_maxsz + \ |
528 | encode_getattr_maxsz + \ | |
529 | encode_restorefh_maxsz + \ | |
530 | encode_getattr_maxsz) | |
1da177e4 | 531 | #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 532 | decode_sequence_maxsz + \ |
1da177e4 LT |
533 | decode_putfh_maxsz + \ |
534 | decode_savefh_maxsz + \ | |
535 | decode_putfh_maxsz + \ | |
6caf2c82 TM |
536 | decode_rename_maxsz + \ |
537 | decode_getattr_maxsz + \ | |
538 | decode_restorefh_maxsz + \ | |
539 | decode_getattr_maxsz) | |
1da177e4 | 540 | #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 541 | encode_sequence_maxsz + \ |
1da177e4 LT |
542 | encode_putfh_maxsz + \ |
543 | encode_savefh_maxsz + \ | |
544 | encode_putfh_maxsz + \ | |
91ba2eee TM |
545 | encode_link_maxsz + \ |
546 | decode_getattr_maxsz + \ | |
547 | encode_restorefh_maxsz + \ | |
548 | decode_getattr_maxsz) | |
1da177e4 | 549 | #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 550 | decode_sequence_maxsz + \ |
1da177e4 LT |
551 | decode_putfh_maxsz + \ |
552 | decode_savefh_maxsz + \ | |
553 | decode_putfh_maxsz + \ | |
91ba2eee TM |
554 | decode_link_maxsz + \ |
555 | decode_getattr_maxsz + \ | |
556 | decode_restorefh_maxsz + \ | |
557 | decode_getattr_maxsz) | |
1da177e4 | 558 | #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 559 | encode_sequence_maxsz + \ |
1da177e4 LT |
560 | encode_putfh_maxsz + \ |
561 | encode_symlink_maxsz + \ | |
562 | encode_getattr_maxsz + \ | |
563 | encode_getfh_maxsz) | |
564 | #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 565 | decode_sequence_maxsz + \ |
1da177e4 LT |
566 | decode_putfh_maxsz + \ |
567 | decode_symlink_maxsz + \ | |
568 | decode_getattr_maxsz + \ | |
569 | decode_getfh_maxsz) | |
570 | #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 571 | encode_sequence_maxsz + \ |
1da177e4 | 572 | encode_putfh_maxsz + \ |
56ae19f3 | 573 | encode_savefh_maxsz + \ |
1da177e4 | 574 | encode_create_maxsz + \ |
56ae19f3 | 575 | encode_getfh_maxsz + \ |
1da177e4 | 576 | encode_getattr_maxsz + \ |
56ae19f3 TM |
577 | encode_restorefh_maxsz + \ |
578 | encode_getattr_maxsz) | |
1da177e4 | 579 | #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 580 | decode_sequence_maxsz + \ |
1da177e4 | 581 | decode_putfh_maxsz + \ |
56ae19f3 | 582 | decode_savefh_maxsz + \ |
1da177e4 | 583 | decode_create_maxsz + \ |
56ae19f3 | 584 | decode_getfh_maxsz + \ |
1da177e4 | 585 | decode_getattr_maxsz + \ |
56ae19f3 TM |
586 | decode_restorefh_maxsz + \ |
587 | decode_getattr_maxsz) | |
1da177e4 | 588 | #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 589 | encode_sequence_maxsz + \ |
1da177e4 LT |
590 | encode_putfh_maxsz + \ |
591 | encode_getattr_maxsz) | |
592 | #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 593 | decode_sequence_maxsz + \ |
1da177e4 LT |
594 | decode_putfh_maxsz + \ |
595 | decode_getattr_maxsz) | |
596 | #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 597 | encode_sequence_maxsz + \ |
1da177e4 | 598 | encode_putfh_maxsz + \ |
9104a55d | 599 | encode_statfs_maxsz) |
1da177e4 | 600 | #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 601 | decode_sequence_maxsz + \ |
1da177e4 | 602 | decode_putfh_maxsz + \ |
9104a55d | 603 | decode_statfs_maxsz) |
1da177e4 | 604 | #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 605 | encode_sequence_maxsz + \ |
ab91f264 | 606 | encode_putfh_maxsz + \ |
1da177e4 LT |
607 | encode_getattr_maxsz) |
608 | #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 609 | decode_sequence_maxsz + \ |
ab91f264 | 610 | decode_putfh_maxsz + \ |
1da177e4 LT |
611 | decode_getattr_maxsz) |
612 | #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 613 | encode_sequence_maxsz + \ |
1da177e4 | 614 | encode_putfh_maxsz + \ |
fa178f29 TM |
615 | encode_delegreturn_maxsz + \ |
616 | encode_getattr_maxsz) | |
1da177e4 | 617 | #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 618 | decode_sequence_maxsz + \ |
fa178f29 TM |
619 | decode_delegreturn_maxsz + \ |
620 | decode_getattr_maxsz) | |
029d105e | 621 | #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 622 | encode_sequence_maxsz + \ |
029d105e | 623 | encode_putfh_maxsz + \ |
9104a55d | 624 | encode_getacl_maxsz) |
029d105e | 625 | #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 626 | decode_sequence_maxsz + \ |
029d105e | 627 | decode_putfh_maxsz + \ |
9104a55d | 628 | decode_getacl_maxsz) |
23ec6965 | 629 | #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 630 | encode_sequence_maxsz + \ |
23ec6965 | 631 | encode_putfh_maxsz + \ |
9104a55d | 632 | encode_setacl_maxsz) |
23ec6965 | 633 | #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 634 | decode_sequence_maxsz + \ |
23ec6965 | 635 | decode_putfh_maxsz + \ |
9104a55d | 636 | decode_setacl_maxsz) |
683b57b4 TM |
637 | #define NFS4_enc_fs_locations_sz \ |
638 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 639 | encode_sequence_maxsz + \ |
683b57b4 | 640 | encode_putfh_maxsz + \ |
e6889620 TM |
641 | encode_lookup_maxsz + \ |
642 | encode_fs_locations_maxsz) | |
683b57b4 TM |
643 | #define NFS4_dec_fs_locations_sz \ |
644 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 645 | decode_sequence_maxsz + \ |
683b57b4 | 646 | decode_putfh_maxsz + \ |
e6889620 TM |
647 | decode_lookup_maxsz + \ |
648 | decode_fs_locations_maxsz) | |
99fe60d0 BH |
649 | #if defined(CONFIG_NFS_V4_1) |
650 | #define NFS4_enc_exchange_id_sz \ | |
651 | (compound_encode_hdr_maxsz + \ | |
652 | encode_exchange_id_maxsz) | |
653 | #define NFS4_dec_exchange_id_sz \ | |
654 | (compound_decode_hdr_maxsz + \ | |
655 | decode_exchange_id_maxsz) | |
fc931582 AA |
656 | #define NFS4_enc_create_session_sz \ |
657 | (compound_encode_hdr_maxsz + \ | |
658 | encode_create_session_maxsz) | |
659 | #define NFS4_dec_create_session_sz \ | |
660 | (compound_decode_hdr_maxsz + \ | |
661 | decode_create_session_maxsz) | |
0f3e66c6 AA |
662 | #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ |
663 | encode_destroy_session_maxsz) | |
664 | #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ | |
665 | decode_destroy_session_maxsz) | |
fc01cea9 AA |
666 | #define NFS4_enc_sequence_sz \ |
667 | (compound_decode_hdr_maxsz + \ | |
668 | encode_sequence_maxsz) | |
669 | #define NFS4_dec_sequence_sz \ | |
670 | (compound_decode_hdr_maxsz + \ | |
671 | decode_sequence_maxsz) | |
2050f0cc AA |
672 | #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ |
673 | encode_sequence_maxsz + \ | |
674 | encode_putrootfh_maxsz + \ | |
675 | encode_fsinfo_maxsz) | |
676 | #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ | |
677 | decode_sequence_maxsz + \ | |
678 | decode_putrootfh_maxsz + \ | |
679 | decode_fsinfo_maxsz) | |
99fe60d0 | 680 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 | 681 | |
bca79478 TM |
682 | static const umode_t nfs_type2fmt[] = { |
683 | [NF4BAD] = 0, | |
684 | [NF4REG] = S_IFREG, | |
685 | [NF4DIR] = S_IFDIR, | |
686 | [NF4BLK] = S_IFBLK, | |
687 | [NF4CHR] = S_IFCHR, | |
688 | [NF4LNK] = S_IFLNK, | |
689 | [NF4SOCK] = S_IFSOCK, | |
690 | [NF4FIFO] = S_IFIFO, | |
691 | [NF4ATTRDIR] = 0, | |
692 | [NF4NAMEDATTR] = 0, | |
1da177e4 LT |
693 | }; |
694 | ||
695 | struct compound_hdr { | |
696 | int32_t status; | |
697 | uint32_t nops; | |
d017931c | 698 | __be32 * nops_p; |
1da177e4 LT |
699 | uint32_t taglen; |
700 | char * tag; | |
0c4e8c18 | 701 | uint32_t replen; /* expected reply words */ |
66cc0429 | 702 | u32 minorversion; |
1da177e4 LT |
703 | }; |
704 | ||
705 | /* | |
706 | * START OF "GENERIC" ENCODE ROUTINES. | |
707 | * These may look a little ugly since they are imported from a "generic" | |
708 | * set of XDR encode/decode routines which are intended to be shared by | |
709 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
710 | * | |
711 | * If the pain of reading these is too great, it should be a straightforward | |
712 | * task to translate them into Linux-specific versions which are more | |
713 | * consistent with the style used in NFSv2/v3... | |
714 | */ | |
1da177e4 LT |
715 | #define WRITE64(n) do { \ |
716 | *p++ = htonl((uint32_t)((n) >> 32)); \ | |
717 | *p++ = htonl((uint32_t)(n)); \ | |
718 | } while (0) | |
719 | #define WRITEMEM(ptr,nbytes) do { \ | |
720 | p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ | |
721 | } while (0) | |
722 | ||
723 | #define RESERVE_SPACE(nbytes) do { \ | |
724 | p = xdr_reserve_space(xdr, nbytes); \ | |
1da177e4 LT |
725 | BUG_ON(!p); \ |
726 | } while (0) | |
727 | ||
728 | static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) | |
729 | { | |
8687b63a | 730 | __be32 *p; |
1da177e4 LT |
731 | |
732 | p = xdr_reserve_space(xdr, 4 + len); | |
733 | BUG_ON(p == NULL); | |
734 | xdr_encode_opaque(p, str, len); | |
735 | } | |
736 | ||
0c4e8c18 BH |
737 | static void encode_compound_hdr(struct xdr_stream *xdr, |
738 | struct rpc_rqst *req, | |
739 | struct compound_hdr *hdr) | |
1da177e4 | 740 | { |
8687b63a | 741 | __be32 *p; |
0c4e8c18 BH |
742 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
743 | ||
744 | /* initialize running count of expected bytes in reply. | |
745 | * NOTE: the replied tag SHOULD be the same is the one sent, | |
746 | * but this is not required as a MUST for the server to do so. */ | |
747 | hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; | |
1da177e4 LT |
748 | |
749 | dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); | |
750 | BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); | |
751 | RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); | |
e75bc1c8 | 752 | *p++ = cpu_to_be32(hdr->taglen); |
1da177e4 | 753 | WRITEMEM(hdr->tag, hdr->taglen); |
e75bc1c8 | 754 | *p++ = cpu_to_be32(hdr->minorversion); |
d017931c | 755 | hdr->nops_p = p; |
e75bc1c8 | 756 | *p++ = cpu_to_be32(hdr->nops); |
d017931c AA |
757 | } |
758 | ||
759 | static void encode_nops(struct compound_hdr *hdr) | |
760 | { | |
fc931582 | 761 | BUG_ON(hdr->nops > NFS4_MAX_OPS); |
d017931c | 762 | *hdr->nops_p = htonl(hdr->nops); |
1da177e4 LT |
763 | } |
764 | ||
765 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) | |
766 | { | |
8687b63a | 767 | __be32 *p; |
1da177e4 LT |
768 | |
769 | p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); | |
770 | BUG_ON(p == NULL); | |
771 | xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); | |
772 | } | |
773 | ||
cf8cdbe5 | 774 | static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) |
1da177e4 LT |
775 | { |
776 | char owner_name[IDMAP_NAMESZ]; | |
777 | char owner_group[IDMAP_NAMESZ]; | |
778 | int owner_namelen = 0; | |
779 | int owner_grouplen = 0; | |
8687b63a AV |
780 | __be32 *p; |
781 | __be32 *q; | |
1da177e4 LT |
782 | int len; |
783 | uint32_t bmval0 = 0; | |
784 | uint32_t bmval1 = 0; | |
1da177e4 LT |
785 | |
786 | /* | |
787 | * We reserve enough space to write the entire attribute buffer at once. | |
788 | * In the worst-case, this would be | |
789 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) | |
790 | * = 36 bytes, plus any contribution from variable-length fields | |
23ec6965 | 791 | * such as owner/group. |
1da177e4 LT |
792 | */ |
793 | len = 16; | |
794 | ||
795 | /* Sigh */ | |
796 | if (iap->ia_valid & ATTR_SIZE) | |
797 | len += 8; | |
798 | if (iap->ia_valid & ATTR_MODE) | |
799 | len += 4; | |
800 | if (iap->ia_valid & ATTR_UID) { | |
7539bbab | 801 | owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); |
1da177e4 | 802 | if (owner_namelen < 0) { |
fe82a183 CL |
803 | dprintk("nfs: couldn't resolve uid %d to string\n", |
804 | iap->ia_uid); | |
1da177e4 LT |
805 | /* XXX */ |
806 | strcpy(owner_name, "nobody"); | |
807 | owner_namelen = sizeof("nobody") - 1; | |
808 | /* goto out; */ | |
809 | } | |
810 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); | |
811 | } | |
812 | if (iap->ia_valid & ATTR_GID) { | |
7539bbab | 813 | owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); |
1da177e4 | 814 | if (owner_grouplen < 0) { |
fe82a183 CL |
815 | dprintk("nfs: couldn't resolve gid %d to string\n", |
816 | iap->ia_gid); | |
1da177e4 LT |
817 | strcpy(owner_group, "nobody"); |
818 | owner_grouplen = sizeof("nobody") - 1; | |
819 | /* goto out; */ | |
820 | } | |
821 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); | |
822 | } | |
823 | if (iap->ia_valid & ATTR_ATIME_SET) | |
824 | len += 16; | |
825 | else if (iap->ia_valid & ATTR_ATIME) | |
826 | len += 4; | |
827 | if (iap->ia_valid & ATTR_MTIME_SET) | |
828 | len += 16; | |
829 | else if (iap->ia_valid & ATTR_MTIME) | |
830 | len += 4; | |
831 | RESERVE_SPACE(len); | |
832 | ||
833 | /* | |
834 | * We write the bitmap length now, but leave the bitmap and the attribute | |
835 | * buffer length to be backfilled at the end of this routine. | |
836 | */ | |
e75bc1c8 | 837 | *p++ = cpu_to_be32(2); |
1da177e4 LT |
838 | q = p; |
839 | p += 3; | |
840 | ||
841 | if (iap->ia_valid & ATTR_SIZE) { | |
842 | bmval0 |= FATTR4_WORD0_SIZE; | |
843 | WRITE64(iap->ia_size); | |
844 | } | |
845 | if (iap->ia_valid & ATTR_MODE) { | |
846 | bmval1 |= FATTR4_WORD1_MODE; | |
e75bc1c8 | 847 | *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); |
1da177e4 LT |
848 | } |
849 | if (iap->ia_valid & ATTR_UID) { | |
850 | bmval1 |= FATTR4_WORD1_OWNER; | |
e75bc1c8 | 851 | *p++ = cpu_to_be32(owner_namelen); |
1da177e4 LT |
852 | WRITEMEM(owner_name, owner_namelen); |
853 | } | |
854 | if (iap->ia_valid & ATTR_GID) { | |
855 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; | |
e75bc1c8 | 856 | *p++ = cpu_to_be32(owner_grouplen); |
1da177e4 LT |
857 | WRITEMEM(owner_group, owner_grouplen); |
858 | } | |
859 | if (iap->ia_valid & ATTR_ATIME_SET) { | |
860 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
e75bc1c8 BH |
861 | *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); |
862 | *p++ = cpu_to_be32(0); | |
863 | *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); | |
864 | *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); | |
1da177e4 LT |
865 | } |
866 | else if (iap->ia_valid & ATTR_ATIME) { | |
867 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
e75bc1c8 | 868 | *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); |
1da177e4 LT |
869 | } |
870 | if (iap->ia_valid & ATTR_MTIME_SET) { | |
871 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
e75bc1c8 BH |
872 | *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); |
873 | *p++ = cpu_to_be32(0); | |
874 | *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); | |
875 | *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); | |
1da177e4 LT |
876 | } |
877 | else if (iap->ia_valid & ATTR_MTIME) { | |
878 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
e75bc1c8 | 879 | *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); |
1da177e4 | 880 | } |
6c0195a4 | 881 | |
1da177e4 LT |
882 | /* |
883 | * Now we backfill the bitmap and the attribute buffer length. | |
884 | */ | |
885 | if (len != ((char *)p - (char *)q) + 4) { | |
fe82a183 | 886 | printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", |
1da177e4 LT |
887 | len, ((char *)p - (char *)q) + 4); |
888 | BUG(); | |
889 | } | |
890 | len = (char *)p - (char *)q - 12; | |
891 | *q++ = htonl(bmval0); | |
892 | *q++ = htonl(bmval1); | |
893 | *q++ = htonl(len); | |
894 | ||
1da177e4 | 895 | /* out: */ |
1da177e4 LT |
896 | } |
897 | ||
cf8cdbe5 | 898 | static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) |
1da177e4 | 899 | { |
8687b63a | 900 | __be32 *p; |
1da177e4 LT |
901 | |
902 | RESERVE_SPACE(8); | |
e75bc1c8 BH |
903 | *p++ = cpu_to_be32(OP_ACCESS); |
904 | *p++ = cpu_to_be32(access); | |
d017931c | 905 | hdr->nops++; |
dadf0c27 | 906 | hdr->replen += decode_access_maxsz; |
1da177e4 LT |
907 | } |
908 | ||
cf8cdbe5 | 909 | static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 910 | { |
8687b63a | 911 | __be32 *p; |
1da177e4 | 912 | |
8ae20abd | 913 | RESERVE_SPACE(8+NFS4_STATEID_SIZE); |
e75bc1c8 BH |
914 | *p++ = cpu_to_be32(OP_CLOSE); |
915 | *p++ = cpu_to_be32(arg->seqid->sequence->counter); | |
8ae20abd | 916 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
d017931c | 917 | hdr->nops++; |
dadf0c27 | 918 | hdr->replen += decode_close_maxsz; |
1da177e4 LT |
919 | } |
920 | ||
cf8cdbe5 | 921 | static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 922 | { |
8687b63a | 923 | __be32 *p; |
6c0195a4 | 924 | |
05d564fe | 925 | RESERVE_SPACE(16); |
e75bc1c8 | 926 | *p++ = cpu_to_be32(OP_COMMIT); |
05d564fe | 927 | WRITE64(args->offset); |
e75bc1c8 | 928 | *p++ = cpu_to_be32(args->count); |
d017931c | 929 | hdr->nops++; |
dadf0c27 | 930 | hdr->replen += decode_commit_maxsz; |
1da177e4 LT |
931 | } |
932 | ||
cf8cdbe5 | 933 | static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) |
1da177e4 | 934 | { |
8687b63a | 935 | __be32 *p; |
6c0195a4 | 936 | |
1da177e4 | 937 | RESERVE_SPACE(8); |
e75bc1c8 BH |
938 | *p++ = cpu_to_be32(OP_CREATE); |
939 | *p++ = cpu_to_be32(create->ftype); | |
1da177e4 LT |
940 | |
941 | switch (create->ftype) { | |
942 | case NF4LNK: | |
94a6d753 | 943 | RESERVE_SPACE(4); |
e75bc1c8 | 944 | *p++ = cpu_to_be32(create->u.symlink.len); |
94a6d753 | 945 | xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); |
1da177e4 LT |
946 | break; |
947 | ||
948 | case NF4BLK: case NF4CHR: | |
949 | RESERVE_SPACE(8); | |
e75bc1c8 BH |
950 | *p++ = cpu_to_be32(create->u.device.specdata1); |
951 | *p++ = cpu_to_be32(create->u.device.specdata2); | |
1da177e4 LT |
952 | break; |
953 | ||
954 | default: | |
955 | break; | |
956 | } | |
957 | ||
958 | RESERVE_SPACE(4 + create->name->len); | |
e75bc1c8 | 959 | *p++ = cpu_to_be32(create->name->len); |
1da177e4 | 960 | WRITEMEM(create->name->name, create->name->len); |
d017931c | 961 | hdr->nops++; |
dadf0c27 | 962 | hdr->replen += decode_create_maxsz; |
1da177e4 | 963 | |
cf8cdbe5 | 964 | encode_attrs(xdr, create->attrs, create->server); |
1da177e4 LT |
965 | } |
966 | ||
cf8cdbe5 | 967 | static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) |
1da177e4 | 968 | { |
05d564fe | 969 | __be32 *p; |
1da177e4 | 970 | |
05d564fe | 971 | RESERVE_SPACE(12); |
e75bc1c8 BH |
972 | *p++ = cpu_to_be32(OP_GETATTR); |
973 | *p++ = cpu_to_be32(1); | |
974 | *p++ = cpu_to_be32(bitmap); | |
d017931c | 975 | hdr->nops++; |
dadf0c27 | 976 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
977 | } |
978 | ||
cf8cdbe5 | 979 | static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) |
1da177e4 | 980 | { |
05d564fe | 981 | __be32 *p; |
1da177e4 | 982 | |
05d564fe | 983 | RESERVE_SPACE(16); |
e75bc1c8 BH |
984 | *p++ = cpu_to_be32(OP_GETATTR); |
985 | *p++ = cpu_to_be32(2); | |
986 | *p++ = cpu_to_be32(bm0); | |
987 | *p++ = cpu_to_be32(bm1); | |
d017931c | 988 | hdr->nops++; |
dadf0c27 | 989 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
990 | } |
991 | ||
cf8cdbe5 | 992 | static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 993 | { |
cf8cdbe5 AA |
994 | encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], |
995 | bitmask[1] & nfs4_fattr_bitmap[1], hdr); | |
1da177e4 LT |
996 | } |
997 | ||
cf8cdbe5 | 998 | static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 999 | { |
cf8cdbe5 AA |
1000 | encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
1001 | bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); | |
1da177e4 LT |
1002 | } |
1003 | ||
cf8cdbe5 | 1004 | static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
830b8e33 | 1005 | { |
cf8cdbe5 AA |
1006 | encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], |
1007 | bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); | |
830b8e33 MN |
1008 | } |
1009 | ||
cf8cdbe5 | 1010 | static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1011 | { |
8687b63a | 1012 | __be32 *p; |
1da177e4 LT |
1013 | |
1014 | RESERVE_SPACE(4); | |
e75bc1c8 | 1015 | *p++ = cpu_to_be32(OP_GETFH); |
d017931c | 1016 | hdr->nops++; |
dadf0c27 | 1017 | hdr->replen += decode_getfh_maxsz; |
1da177e4 LT |
1018 | } |
1019 | ||
cf8cdbe5 | 1020 | static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1021 | { |
8687b63a | 1022 | __be32 *p; |
1da177e4 LT |
1023 | |
1024 | RESERVE_SPACE(8 + name->len); | |
e75bc1c8 BH |
1025 | *p++ = cpu_to_be32(OP_LINK); |
1026 | *p++ = cpu_to_be32(name->len); | |
1da177e4 | 1027 | WRITEMEM(name->name, name->len); |
d017931c | 1028 | hdr->nops++; |
dadf0c27 | 1029 | hdr->replen += decode_link_maxsz; |
1da177e4 LT |
1030 | } |
1031 | ||
911d1aaf TM |
1032 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
1033 | { | |
1034 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) | |
1035 | return block ? NFS4_READW_LT : NFS4_READ_LT; | |
1036 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; | |
1037 | } | |
1038 | ||
1039 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) | |
1040 | { | |
1041 | if (fl->fl_end == OFFSET_MAX) | |
1042 | return ~(uint64_t)0; | |
1043 | return fl->fl_end - fl->fl_start + 1; | |
1044 | } | |
1045 | ||
1da177e4 LT |
1046 | /* |
1047 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 | |
1048 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 | |
1049 | */ | |
cf8cdbe5 | 1050 | static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) |
1da177e4 | 1051 | { |
8687b63a | 1052 | __be32 *p; |
1da177e4 LT |
1053 | |
1054 | RESERVE_SPACE(32); | |
e75bc1c8 BH |
1055 | *p++ = cpu_to_be32(OP_LOCK); |
1056 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); | |
1057 | *p++ = cpu_to_be32(args->reclaim); | |
911d1aaf TM |
1058 | WRITE64(args->fl->fl_start); |
1059 | WRITE64(nfs4_lock_length(args->fl)); | |
e75bc1c8 | 1060 | *p++ = cpu_to_be32(args->new_lock_owner); |
911d1aaf | 1061 | if (args->new_lock_owner){ |
9f958ab8 | 1062 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); |
e75bc1c8 | 1063 | *p++ = cpu_to_be32(args->open_seqid->sequence->counter); |
8ae20abd | 1064 | WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); |
e75bc1c8 | 1065 | *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); |
911d1aaf | 1066 | WRITE64(args->lock_owner.clientid); |
e75bc1c8 | 1067 | *p++ = cpu_to_be32(16); |
9f958ab8 TM |
1068 | WRITEMEM("lock id:", 8); |
1069 | WRITE64(args->lock_owner.id); | |
1da177e4 LT |
1070 | } |
1071 | else { | |
8ae20abd TM |
1072 | RESERVE_SPACE(NFS4_STATEID_SIZE+4); |
1073 | WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); | |
e75bc1c8 | 1074 | *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); |
1da177e4 | 1075 | } |
d017931c | 1076 | hdr->nops++; |
dadf0c27 | 1077 | hdr->replen += decode_lock_maxsz; |
1da177e4 LT |
1078 | } |
1079 | ||
cf8cdbe5 | 1080 | static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) |
1da177e4 | 1081 | { |
8687b63a | 1082 | __be32 *p; |
1da177e4 | 1083 | |
9f958ab8 | 1084 | RESERVE_SPACE(52); |
e75bc1c8 BH |
1085 | *p++ = cpu_to_be32(OP_LOCKT); |
1086 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); | |
911d1aaf TM |
1087 | WRITE64(args->fl->fl_start); |
1088 | WRITE64(nfs4_lock_length(args->fl)); | |
1089 | WRITE64(args->lock_owner.clientid); | |
e75bc1c8 | 1090 | *p++ = cpu_to_be32(16); |
9f958ab8 TM |
1091 | WRITEMEM("lock id:", 8); |
1092 | WRITE64(args->lock_owner.id); | |
d017931c | 1093 | hdr->nops++; |
dadf0c27 | 1094 | hdr->replen += decode_lockt_maxsz; |
1da177e4 LT |
1095 | } |
1096 | ||
cf8cdbe5 | 1097 | static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) |
1da177e4 | 1098 | { |
8687b63a | 1099 | __be32 *p; |
1da177e4 | 1100 | |
8ae20abd | 1101 | RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); |
e75bc1c8 BH |
1102 | *p++ = cpu_to_be32(OP_LOCKU); |
1103 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); | |
1104 | *p++ = cpu_to_be32(args->seqid->sequence->counter); | |
8ae20abd | 1105 | WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
1106 | WRITE64(args->fl->fl_start); |
1107 | WRITE64(nfs4_lock_length(args->fl)); | |
d017931c | 1108 | hdr->nops++; |
dadf0c27 | 1109 | hdr->replen += decode_locku_maxsz; |
1da177e4 LT |
1110 | } |
1111 | ||
cf8cdbe5 | 1112 | static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 LT |
1113 | { |
1114 | int len = name->len; | |
8687b63a | 1115 | __be32 *p; |
1da177e4 LT |
1116 | |
1117 | RESERVE_SPACE(8 + len); | |
e75bc1c8 BH |
1118 | *p++ = cpu_to_be32(OP_LOOKUP); |
1119 | *p++ = cpu_to_be32(len); | |
1da177e4 | 1120 | WRITEMEM(name->name, len); |
d017931c | 1121 | hdr->nops++; |
dadf0c27 | 1122 | hdr->replen += decode_lookup_maxsz; |
1da177e4 LT |
1123 | } |
1124 | ||
dc0b027d | 1125 | static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) |
1da177e4 | 1126 | { |
8687b63a | 1127 | __be32 *p; |
1da177e4 LT |
1128 | |
1129 | RESERVE_SPACE(8); | |
dc0b027d | 1130 | switch (fmode & (FMODE_READ|FMODE_WRITE)) { |
05d564fe | 1131 | case FMODE_READ: |
e75bc1c8 | 1132 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); |
05d564fe AA |
1133 | break; |
1134 | case FMODE_WRITE: | |
e75bc1c8 | 1135 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); |
05d564fe AA |
1136 | break; |
1137 | case FMODE_READ|FMODE_WRITE: | |
e75bc1c8 | 1138 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); |
05d564fe AA |
1139 | break; |
1140 | default: | |
e75bc1c8 | 1141 | *p++ = cpu_to_be32(0); |
1da177e4 | 1142 | } |
e75bc1c8 | 1143 | *p++ = cpu_to_be32(0); /* for linux, share_deny = 0 always */ |
1da177e4 LT |
1144 | } |
1145 | ||
1146 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1147 | { | |
8687b63a | 1148 | __be32 *p; |
1da177e4 LT |
1149 | /* |
1150 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, | |
1151 | * owner 4 = 32 | |
1152 | */ | |
1153 | RESERVE_SPACE(8); | |
e75bc1c8 BH |
1154 | *p++ = cpu_to_be32(OP_OPEN); |
1155 | *p++ = cpu_to_be32(arg->seqid->sequence->counter); | |
dc0b027d | 1156 | encode_share_access(xdr, arg->fmode); |
9f958ab8 | 1157 | RESERVE_SPACE(28); |
1da177e4 | 1158 | WRITE64(arg->clientid); |
e75bc1c8 | 1159 | *p++ = cpu_to_be32(16); |
9f958ab8 TM |
1160 | WRITEMEM("open id:", 8); |
1161 | WRITE64(arg->id); | |
1da177e4 LT |
1162 | } |
1163 | ||
1164 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1165 | { | |
8687b63a | 1166 | __be32 *p; |
1da177e4 LT |
1167 | |
1168 | RESERVE_SPACE(4); | |
1169 | switch(arg->open_flags & O_EXCL) { | |
05d564fe | 1170 | case 0: |
e75bc1c8 | 1171 | *p++ = cpu_to_be32(NFS4_CREATE_UNCHECKED); |
05d564fe AA |
1172 | encode_attrs(xdr, arg->u.attrs, arg->server); |
1173 | break; | |
1174 | default: | |
e75bc1c8 | 1175 | *p++ = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); |
05d564fe | 1176 | encode_nfs4_verifier(xdr, &arg->u.verifier); |
1da177e4 LT |
1177 | } |
1178 | } | |
1179 | ||
1180 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1181 | { | |
8687b63a | 1182 | __be32 *p; |
1da177e4 LT |
1183 | |
1184 | RESERVE_SPACE(4); | |
1185 | switch (arg->open_flags & O_CREAT) { | |
05d564fe | 1186 | case 0: |
e75bc1c8 | 1187 | *p++ = cpu_to_be32(NFS4_OPEN_NOCREATE); |
05d564fe AA |
1188 | break; |
1189 | default: | |
1190 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); | |
e75bc1c8 | 1191 | *p++ = cpu_to_be32(NFS4_OPEN_CREATE); |
05d564fe | 1192 | encode_createmode(xdr, arg); |
1da177e4 LT |
1193 | } |
1194 | } | |
1195 | ||
bd7bf9d5 | 1196 | static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) |
1da177e4 | 1197 | { |
8687b63a | 1198 | __be32 *p; |
1da177e4 LT |
1199 | |
1200 | RESERVE_SPACE(4); | |
1201 | switch (delegation_type) { | |
05d564fe | 1202 | case 0: |
e75bc1c8 | 1203 | *p++ = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); |
05d564fe AA |
1204 | break; |
1205 | case FMODE_READ: | |
e75bc1c8 | 1206 | *p++ = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); |
05d564fe AA |
1207 | break; |
1208 | case FMODE_WRITE|FMODE_READ: | |
e75bc1c8 | 1209 | *p++ = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); |
05d564fe AA |
1210 | break; |
1211 | default: | |
1212 | BUG(); | |
1da177e4 LT |
1213 | } |
1214 | } | |
1215 | ||
1216 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) | |
1217 | { | |
8687b63a | 1218 | __be32 *p; |
1da177e4 LT |
1219 | |
1220 | RESERVE_SPACE(4); | |
e75bc1c8 | 1221 | *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); |
1da177e4 LT |
1222 | encode_string(xdr, name->len, name->name); |
1223 | } | |
1224 | ||
bd7bf9d5 | 1225 | static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) |
1da177e4 | 1226 | { |
8687b63a | 1227 | __be32 *p; |
1da177e4 LT |
1228 | |
1229 | RESERVE_SPACE(4); | |
e75bc1c8 | 1230 | *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); |
1da177e4 LT |
1231 | encode_delegation_type(xdr, type); |
1232 | } | |
1233 | ||
1234 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) | |
1235 | { | |
8687b63a | 1236 | __be32 *p; |
1da177e4 | 1237 | |
8ae20abd | 1238 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1239 | *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
8ae20abd | 1240 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1241 | encode_string(xdr, name->len, name->name); |
1242 | } | |
1243 | ||
cf8cdbe5 | 1244 | static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) |
1da177e4 LT |
1245 | { |
1246 | encode_openhdr(xdr, arg); | |
1247 | encode_opentype(xdr, arg); | |
1248 | switch (arg->claim) { | |
05d564fe AA |
1249 | case NFS4_OPEN_CLAIM_NULL: |
1250 | encode_claim_null(xdr, arg->name); | |
1251 | break; | |
1252 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
1253 | encode_claim_previous(xdr, arg->u.delegation_type); | |
1254 | break; | |
1255 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: | |
1256 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); | |
1257 | break; | |
1258 | default: | |
1259 | BUG(); | |
1da177e4 | 1260 | } |
d017931c | 1261 | hdr->nops++; |
dadf0c27 | 1262 | hdr->replen += decode_open_maxsz; |
1da177e4 LT |
1263 | } |
1264 | ||
cf8cdbe5 | 1265 | static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1266 | { |
8687b63a | 1267 | __be32 *p; |
1da177e4 | 1268 | |
8ae20abd | 1269 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
e75bc1c8 | 1270 | *p++ = cpu_to_be32(OP_OPEN_CONFIRM); |
8ae20abd | 1271 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
e75bc1c8 | 1272 | *p++ = cpu_to_be32(arg->seqid->sequence->counter); |
d017931c | 1273 | hdr->nops++; |
dadf0c27 | 1274 | hdr->replen += decode_open_confirm_maxsz; |
1da177e4 LT |
1275 | } |
1276 | ||
cf8cdbe5 | 1277 | static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1278 | { |
8687b63a | 1279 | __be32 *p; |
1da177e4 | 1280 | |
8ae20abd | 1281 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
e75bc1c8 | 1282 | *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); |
8ae20abd | 1283 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
e75bc1c8 | 1284 | *p++ = cpu_to_be32(arg->seqid->sequence->counter); |
dc0b027d | 1285 | encode_share_access(xdr, arg->fmode); |
d017931c | 1286 | hdr->nops++; |
dadf0c27 | 1287 | hdr->replen += decode_open_downgrade_maxsz; |
1da177e4 LT |
1288 | } |
1289 | ||
cf8cdbe5 | 1290 | static void |
d017931c | 1291 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) |
1da177e4 LT |
1292 | { |
1293 | int len = fh->size; | |
8687b63a | 1294 | __be32 *p; |
1da177e4 LT |
1295 | |
1296 | RESERVE_SPACE(8 + len); | |
e75bc1c8 BH |
1297 | *p++ = cpu_to_be32(OP_PUTFH); |
1298 | *p++ = cpu_to_be32(len); | |
1da177e4 | 1299 | WRITEMEM(fh->data, len); |
d017931c | 1300 | hdr->nops++; |
dadf0c27 | 1301 | hdr->replen += decode_putfh_maxsz; |
1da177e4 LT |
1302 | } |
1303 | ||
cf8cdbe5 | 1304 | static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1305 | { |
05d564fe | 1306 | __be32 *p; |
6c0195a4 | 1307 | |
05d564fe | 1308 | RESERVE_SPACE(4); |
e75bc1c8 | 1309 | *p++ = cpu_to_be32(OP_PUTROOTFH); |
d017931c | 1310 | hdr->nops++; |
dadf0c27 | 1311 | hdr->replen += decode_putrootfh_maxsz; |
1da177e4 LT |
1312 | } |
1313 | ||
1314 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) | |
1315 | { | |
1da177e4 | 1316 | nfs4_stateid stateid; |
8687b63a | 1317 | __be32 *p; |
1da177e4 | 1318 | |
8ae20abd | 1319 | RESERVE_SPACE(NFS4_STATEID_SIZE); |
1da177e4 LT |
1320 | if (ctx->state != NULL) { |
1321 | nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); | |
8ae20abd | 1322 | WRITEMEM(stateid.data, NFS4_STATEID_SIZE); |
1da177e4 | 1323 | } else |
8ae20abd | 1324 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1325 | } |
1326 | ||
cf8cdbe5 | 1327 | static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) |
1da177e4 | 1328 | { |
8687b63a | 1329 | __be32 *p; |
1da177e4 LT |
1330 | |
1331 | RESERVE_SPACE(4); | |
e75bc1c8 | 1332 | *p++ = cpu_to_be32(OP_READ); |
1da177e4 LT |
1333 | |
1334 | encode_stateid(xdr, args->context); | |
1335 | ||
1336 | RESERVE_SPACE(12); | |
1337 | WRITE64(args->offset); | |
e75bc1c8 | 1338 | *p++ = cpu_to_be32(args->count); |
d017931c | 1339 | hdr->nops++; |
dadf0c27 | 1340 | hdr->replen += decode_read_maxsz; |
1da177e4 LT |
1341 | } |
1342 | ||
cf8cdbe5 | 1343 | static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1344 | { |
97d312d0 MN |
1345 | uint32_t attrs[2] = { |
1346 | FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, | |
1347 | FATTR4_WORD1_MOUNTED_ON_FILEID, | |
1348 | }; | |
8687b63a | 1349 | __be32 *p; |
1da177e4 | 1350 | |
8ae20abd | 1351 | RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); |
e75bc1c8 | 1352 | *p++ = cpu_to_be32(OP_READDIR); |
1da177e4 | 1353 | WRITE64(readdir->cookie); |
8ae20abd | 1354 | WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); |
e75bc1c8 BH |
1355 | *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */ |
1356 | *p++ = cpu_to_be32(readdir->count); | |
1357 | *p++ = cpu_to_be32(2); | |
97d312d0 MN |
1358 | /* Switch to mounted_on_fileid if the server supports it */ |
1359 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) | |
1360 | attrs[0] &= ~FATTR4_WORD0_FILEID; | |
1361 | else | |
1362 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
e75bc1c8 BH |
1363 | *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); |
1364 | *p++ = cpu_to_be32(attrs[1] & readdir->bitmask[1]); | |
d017931c | 1365 | hdr->nops++; |
dadf0c27 | 1366 | hdr->replen += decode_readdir_maxsz; |
44109241 FI |
1367 | dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", |
1368 | __func__, | |
eadf4598 TM |
1369 | (unsigned long long)readdir->cookie, |
1370 | ((u32 *)readdir->verifier.data)[0], | |
1371 | ((u32 *)readdir->verifier.data)[1], | |
1372 | attrs[0] & readdir->bitmask[0], | |
1373 | attrs[1] & readdir->bitmask[1]); | |
1da177e4 LT |
1374 | } |
1375 | ||
cf8cdbe5 | 1376 | static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1377 | { |
8687b63a | 1378 | __be32 *p; |
1da177e4 LT |
1379 | |
1380 | RESERVE_SPACE(4); | |
e75bc1c8 | 1381 | *p++ = cpu_to_be32(OP_READLINK); |
d017931c | 1382 | hdr->nops++; |
dadf0c27 | 1383 | hdr->replen += decode_readlink_maxsz; |
1da177e4 LT |
1384 | } |
1385 | ||
cf8cdbe5 | 1386 | static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1387 | { |
8687b63a | 1388 | __be32 *p; |
1da177e4 LT |
1389 | |
1390 | RESERVE_SPACE(8 + name->len); | |
e75bc1c8 BH |
1391 | *p++ = cpu_to_be32(OP_REMOVE); |
1392 | *p++ = cpu_to_be32(name->len); | |
1da177e4 | 1393 | WRITEMEM(name->name, name->len); |
d017931c | 1394 | hdr->nops++; |
dadf0c27 | 1395 | hdr->replen += decode_remove_maxsz; |
1da177e4 LT |
1396 | } |
1397 | ||
cf8cdbe5 | 1398 | static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) |
1da177e4 | 1399 | { |
8687b63a | 1400 | __be32 *p; |
1da177e4 LT |
1401 | |
1402 | RESERVE_SPACE(8 + oldname->len); | |
e75bc1c8 BH |
1403 | *p++ = cpu_to_be32(OP_RENAME); |
1404 | *p++ = cpu_to_be32(oldname->len); | |
1da177e4 | 1405 | WRITEMEM(oldname->name, oldname->len); |
6c0195a4 | 1406 | |
1da177e4 | 1407 | RESERVE_SPACE(4 + newname->len); |
e75bc1c8 | 1408 | *p++ = cpu_to_be32(newname->len); |
1da177e4 | 1409 | WRITEMEM(newname->name, newname->len); |
d017931c | 1410 | hdr->nops++; |
dadf0c27 | 1411 | hdr->replen += decode_rename_maxsz; |
1da177e4 LT |
1412 | } |
1413 | ||
cf8cdbe5 | 1414 | static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) |
1da177e4 | 1415 | { |
8687b63a | 1416 | __be32 *p; |
1da177e4 LT |
1417 | |
1418 | RESERVE_SPACE(12); | |
e75bc1c8 | 1419 | *p++ = cpu_to_be32(OP_RENEW); |
1da177e4 | 1420 | WRITE64(client_stateid->cl_clientid); |
d017931c | 1421 | hdr->nops++; |
dadf0c27 | 1422 | hdr->replen += decode_renew_maxsz; |
1da177e4 LT |
1423 | } |
1424 | ||
cf8cdbe5 | 1425 | static void |
d017931c | 1426 | encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
56ae19f3 | 1427 | { |
8687b63a | 1428 | __be32 *p; |
56ae19f3 TM |
1429 | |
1430 | RESERVE_SPACE(4); | |
e75bc1c8 | 1431 | *p++ = cpu_to_be32(OP_RESTOREFH); |
d017931c | 1432 | hdr->nops++; |
dadf0c27 | 1433 | hdr->replen += decode_restorefh_maxsz; |
56ae19f3 TM |
1434 | } |
1435 | ||
23ec6965 | 1436 | static int |
d017931c | 1437 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) |
23ec6965 | 1438 | { |
8687b63a | 1439 | __be32 *p; |
23ec6965 | 1440 | |
8ae20abd | 1441 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1442 | *p++ = cpu_to_be32(OP_SETATTR); |
8ae20abd | 1443 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
23ec6965 | 1444 | RESERVE_SPACE(2*4); |
e75bc1c8 BH |
1445 | *p++ = cpu_to_be32(1); |
1446 | *p++ = cpu_to_be32(FATTR4_WORD0_ACL); | |
23ec6965 BF |
1447 | if (arg->acl_len % 4) |
1448 | return -EINVAL; | |
1449 | RESERVE_SPACE(4); | |
e75bc1c8 | 1450 | *p++ = cpu_to_be32(arg->acl_len); |
23ec6965 | 1451 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); |
d017931c | 1452 | hdr->nops++; |
dadf0c27 | 1453 | hdr->replen += decode_setacl_maxsz; |
23ec6965 BF |
1454 | return 0; |
1455 | } | |
1456 | ||
cf8cdbe5 | 1457 | static void |
d017931c | 1458 | encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1459 | { |
8687b63a | 1460 | __be32 *p; |
1da177e4 LT |
1461 | |
1462 | RESERVE_SPACE(4); | |
e75bc1c8 | 1463 | *p++ = cpu_to_be32(OP_SAVEFH); |
d017931c | 1464 | hdr->nops++; |
dadf0c27 | 1465 | hdr->replen += decode_savefh_maxsz; |
1da177e4 LT |
1466 | } |
1467 | ||
cf8cdbe5 | 1468 | static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) |
1da177e4 | 1469 | { |
8687b63a | 1470 | __be32 *p; |
6c0195a4 | 1471 | |
05d564fe | 1472 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1473 | *p++ = cpu_to_be32(OP_SETATTR); |
8ae20abd | 1474 | WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); |
d017931c | 1475 | hdr->nops++; |
dadf0c27 | 1476 | hdr->replen += decode_setattr_maxsz; |
cf8cdbe5 | 1477 | encode_attrs(xdr, arg->iap, server); |
1da177e4 LT |
1478 | } |
1479 | ||
cf8cdbe5 | 1480 | static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) |
1da177e4 | 1481 | { |
8687b63a | 1482 | __be32 *p; |
1da177e4 | 1483 | |
8ae20abd | 1484 | RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); |
e75bc1c8 | 1485 | *p++ = cpu_to_be32(OP_SETCLIENTID); |
8ae20abd | 1486 | WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1487 | |
1488 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); | |
1489 | RESERVE_SPACE(4); | |
e75bc1c8 | 1490 | *p++ = cpu_to_be32(setclientid->sc_prog); |
1da177e4 LT |
1491 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); |
1492 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); | |
1493 | RESERVE_SPACE(4); | |
e75bc1c8 | 1494 | *p++ = cpu_to_be32(setclientid->sc_cb_ident); |
d017931c | 1495 | hdr->nops++; |
dadf0c27 | 1496 | hdr->replen += decode_setclientid_maxsz; |
1da177e4 LT |
1497 | } |
1498 | ||
cf8cdbe5 | 1499 | static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) |
1da177e4 | 1500 | { |
05d564fe | 1501 | __be32 *p; |
1da177e4 | 1502 | |
05d564fe | 1503 | RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); |
e75bc1c8 | 1504 | *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); |
05d564fe AA |
1505 | WRITE64(client_state->cl_clientid); |
1506 | WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); | |
d017931c | 1507 | hdr->nops++; |
dadf0c27 | 1508 | hdr->replen += decode_setclientid_confirm_maxsz; |
1da177e4 LT |
1509 | } |
1510 | ||
cf8cdbe5 | 1511 | static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 1512 | { |
8687b63a | 1513 | __be32 *p; |
1da177e4 LT |
1514 | |
1515 | RESERVE_SPACE(4); | |
e75bc1c8 | 1516 | *p++ = cpu_to_be32(OP_WRITE); |
1da177e4 LT |
1517 | |
1518 | encode_stateid(xdr, args->context); | |
1519 | ||
1520 | RESERVE_SPACE(16); | |
1521 | WRITE64(args->offset); | |
e75bc1c8 BH |
1522 | *p++ = cpu_to_be32(args->stable); |
1523 | *p++ = cpu_to_be32(args->count); | |
1da177e4 LT |
1524 | |
1525 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); | |
d017931c | 1526 | hdr->nops++; |
dadf0c27 | 1527 | hdr->replen += decode_write_maxsz; |
1da177e4 LT |
1528 | } |
1529 | ||
cf8cdbe5 | 1530 | static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) |
1da177e4 | 1531 | { |
8687b63a | 1532 | __be32 *p; |
1da177e4 | 1533 | |
8ae20abd | 1534 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 | 1535 | |
e75bc1c8 | 1536 | *p++ = cpu_to_be32(OP_DELEGRETURN); |
8ae20abd | 1537 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
d017931c | 1538 | hdr->nops++; |
dadf0c27 | 1539 | hdr->replen += decode_delegreturn_maxsz; |
1da177e4 | 1540 | } |
9b7b9fcc | 1541 | |
99fe60d0 | 1542 | #if defined(CONFIG_NFS_V4_1) |
9b7b9fcc | 1543 | /* NFSv4.1 operations */ |
99fe60d0 BH |
1544 | static void encode_exchange_id(struct xdr_stream *xdr, |
1545 | struct nfs41_exchange_id_args *args, | |
1546 | struct compound_hdr *hdr) | |
1547 | { | |
1548 | __be32 *p; | |
1549 | ||
1550 | RESERVE_SPACE(4 + sizeof(args->verifier->data)); | |
e75bc1c8 | 1551 | *p++ = cpu_to_be32(OP_EXCHANGE_ID); |
99fe60d0 BH |
1552 | WRITEMEM(args->verifier->data, sizeof(args->verifier->data)); |
1553 | ||
1554 | encode_string(xdr, args->id_len, args->id); | |
1555 | ||
1556 | RESERVE_SPACE(12); | |
e75bc1c8 BH |
1557 | *p++ = cpu_to_be32(args->flags); |
1558 | *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ | |
1559 | *p++ = cpu_to_be32(0); /* zero length implementation id array */ | |
99fe60d0 BH |
1560 | hdr->nops++; |
1561 | hdr->replen += decode_exchange_id_maxsz; | |
1562 | } | |
fc931582 AA |
1563 | |
1564 | static void encode_create_session(struct xdr_stream *xdr, | |
1565 | struct nfs41_create_session_args *args, | |
1566 | struct compound_hdr *hdr) | |
1567 | { | |
1568 | __be32 *p; | |
1569 | char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; | |
1570 | uint32_t len; | |
1571 | struct nfs_client *clp = args->client; | |
1572 | ||
1573 | RESERVE_SPACE(4); | |
e75bc1c8 | 1574 | *p++ = cpu_to_be32(OP_CREATE_SESSION); |
fc931582 AA |
1575 | |
1576 | RESERVE_SPACE(8); | |
1577 | WRITE64(clp->cl_ex_clid); | |
1578 | ||
1579 | RESERVE_SPACE(8); | |
e75bc1c8 BH |
1580 | *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ |
1581 | *p++ = cpu_to_be32(args->flags); /*flags */ | |
fc931582 AA |
1582 | |
1583 | RESERVE_SPACE(2*28); /* 2 channel_attrs */ | |
1584 | /* Fore Channel */ | |
e75bc1c8 BH |
1585 | *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ |
1586 | *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ | |
1587 | *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ | |
1588 | *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */ | |
1589 | *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ | |
1590 | *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ | |
1591 | *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ | |
fc931582 AA |
1592 | |
1593 | /* Back Channel */ | |
e75bc1c8 BH |
1594 | *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ |
1595 | *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ | |
1596 | *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ | |
1597 | *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ | |
1598 | *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ | |
1599 | *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ | |
1600 | *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ | |
fc931582 AA |
1601 | |
1602 | RESERVE_SPACE(4); | |
e75bc1c8 | 1603 | *p++ = cpu_to_be32(args->cb_program); /* cb_program */ |
fc931582 AA |
1604 | |
1605 | RESERVE_SPACE(4); /* # of security flavors */ | |
e75bc1c8 | 1606 | *p++ = cpu_to_be32(1); |
fc931582 AA |
1607 | |
1608 | RESERVE_SPACE(4); | |
e75bc1c8 | 1609 | *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ |
fc931582 AA |
1610 | |
1611 | /* authsys_parms rfc1831 */ | |
1612 | RESERVE_SPACE(4); | |
e75bc1c8 | 1613 | *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ |
fc931582 AA |
1614 | len = scnprintf(machine_name, sizeof(machine_name), "%s", |
1615 | clp->cl_ipaddr); | |
1616 | RESERVE_SPACE(16 + len); | |
e75bc1c8 | 1617 | *p++ = cpu_to_be32(len); |
fc931582 | 1618 | WRITEMEM(machine_name, len); |
e75bc1c8 BH |
1619 | *p++ = cpu_to_be32(0); /* UID */ |
1620 | *p++ = cpu_to_be32(0); /* GID */ | |
1621 | *p++ = cpu_to_be32(0); /* No more gids */ | |
fc931582 AA |
1622 | hdr->nops++; |
1623 | hdr->replen += decode_create_session_maxsz; | |
1624 | } | |
0f3e66c6 AA |
1625 | |
1626 | static void encode_destroy_session(struct xdr_stream *xdr, | |
1627 | struct nfs4_session *session, | |
1628 | struct compound_hdr *hdr) | |
1629 | { | |
1630 | __be32 *p; | |
1631 | RESERVE_SPACE(4 + NFS4_MAX_SESSIONID_LEN); | |
e75bc1c8 | 1632 | *p++ = cpu_to_be32(OP_DESTROY_SESSION); |
0f3e66c6 AA |
1633 | WRITEMEM(session->sess_id.data, NFS4_MAX_SESSIONID_LEN); |
1634 | hdr->nops++; | |
1635 | hdr->replen += decode_destroy_session_maxsz; | |
1636 | } | |
99fe60d0 BH |
1637 | #endif /* CONFIG_NFS_V4_1 */ |
1638 | ||
9b7b9fcc AA |
1639 | static void encode_sequence(struct xdr_stream *xdr, |
1640 | const struct nfs4_sequence_args *args, | |
1641 | struct compound_hdr *hdr) | |
1642 | { | |
1643 | #if defined(CONFIG_NFS_V4_1) | |
1644 | struct nfs4_session *session = args->sa_session; | |
fc01cea9 AA |
1645 | struct nfs4_slot_table *tp; |
1646 | struct nfs4_slot *slot; | |
1647 | __be32 *p; | |
9b7b9fcc AA |
1648 | |
1649 | if (!session) | |
1650 | return; | |
1651 | ||
fc01cea9 AA |
1652 | tp = &session->fc_slot_table; |
1653 | ||
1654 | WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); | |
1655 | slot = tp->slots + args->sa_slotid; | |
1656 | ||
1657 | RESERVE_SPACE(4); | |
e75bc1c8 | 1658 | *p++ = cpu_to_be32(OP_SEQUENCE); |
fc01cea9 AA |
1659 | |
1660 | /* | |
1661 | * Sessionid + seqid + slotid + max slotid + cache_this | |
1662 | */ | |
1663 | dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " | |
1664 | "max_slotid=%d cache_this=%d\n", | |
1665 | __func__, | |
1666 | ((u32 *)session->sess_id.data)[0], | |
1667 | ((u32 *)session->sess_id.data)[1], | |
1668 | ((u32 *)session->sess_id.data)[2], | |
1669 | ((u32 *)session->sess_id.data)[3], | |
1670 | slot->seq_nr, args->sa_slotid, | |
1671 | tp->highest_used_slotid, args->sa_cache_this); | |
1672 | RESERVE_SPACE(NFS4_MAX_SESSIONID_LEN + 16); | |
1673 | WRITEMEM(session->sess_id.data, NFS4_MAX_SESSIONID_LEN); | |
e75bc1c8 BH |
1674 | *p++ = cpu_to_be32(slot->seq_nr); |
1675 | *p++ = cpu_to_be32(args->sa_slotid); | |
1676 | *p++ = cpu_to_be32(tp->highest_used_slotid); | |
1677 | *p++ = cpu_to_be32(args->sa_cache_this); | |
9b7b9fcc AA |
1678 | hdr->nops++; |
1679 | hdr->replen += decode_sequence_maxsz; | |
1680 | #endif /* CONFIG_NFS_V4_1 */ | |
1681 | } | |
1682 | ||
1da177e4 LT |
1683 | /* |
1684 | * END OF "GENERIC" ENCODE ROUTINES. | |
1685 | */ | |
1686 | ||
66cc0429 BH |
1687 | static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) |
1688 | { | |
1689 | #if defined(CONFIG_NFS_V4_1) | |
1690 | if (args->sa_session) | |
1691 | return args->sa_session->clp->cl_minorversion; | |
1692 | #endif /* CONFIG_NFS_V4_1 */ | |
1693 | return 0; | |
1694 | } | |
1695 | ||
1da177e4 LT |
1696 | /* |
1697 | * Encode an ACCESS request | |
1698 | */ | |
8687b63a | 1699 | static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) |
1da177e4 LT |
1700 | { |
1701 | struct xdr_stream xdr; | |
1702 | struct compound_hdr hdr = { | |
66cc0429 | 1703 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1704 | }; |
1da177e4 LT |
1705 | |
1706 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1707 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1708 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1709 | encode_putfh(&xdr, args->fh, &hdr); |
1710 | encode_access(&xdr, args->access, &hdr); | |
1711 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1712 | encode_nops(&hdr); |
cf8cdbe5 | 1713 | return 0; |
1da177e4 LT |
1714 | } |
1715 | ||
1716 | /* | |
1717 | * Encode LOOKUP request | |
1718 | */ | |
8687b63a | 1719 | static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) |
1da177e4 LT |
1720 | { |
1721 | struct xdr_stream xdr; | |
1722 | struct compound_hdr hdr = { | |
66cc0429 | 1723 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1724 | }; |
1da177e4 LT |
1725 | |
1726 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1727 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1728 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1729 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1730 | encode_lookup(&xdr, args->name, &hdr); | |
1731 | encode_getfh(&xdr, &hdr); | |
1732 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1733 | encode_nops(&hdr); |
cf8cdbe5 | 1734 | return 0; |
1da177e4 LT |
1735 | } |
1736 | ||
1737 | /* | |
1738 | * Encode LOOKUP_ROOT request | |
1739 | */ | |
8687b63a | 1740 | static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) |
1da177e4 LT |
1741 | { |
1742 | struct xdr_stream xdr; | |
1743 | struct compound_hdr hdr = { | |
66cc0429 | 1744 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1745 | }; |
1da177e4 LT |
1746 | |
1747 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1748 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1749 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1750 | encode_putrootfh(&xdr, &hdr); |
1751 | encode_getfh(&xdr, &hdr); | |
1752 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1753 | encode_nops(&hdr); |
cf8cdbe5 | 1754 | return 0; |
1da177e4 LT |
1755 | } |
1756 | ||
1757 | /* | |
1758 | * Encode REMOVE request | |
1759 | */ | |
4fdc17b2 | 1760 | static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) |
1da177e4 LT |
1761 | { |
1762 | struct xdr_stream xdr; | |
1763 | struct compound_hdr hdr = { | |
66cc0429 | 1764 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1765 | }; |
1da177e4 LT |
1766 | |
1767 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1768 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1769 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1770 | encode_putfh(&xdr, args->fh, &hdr); |
1771 | encode_remove(&xdr, &args->name, &hdr); | |
1772 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1773 | encode_nops(&hdr); |
cf8cdbe5 | 1774 | return 0; |
1da177e4 LT |
1775 | } |
1776 | ||
1777 | /* | |
1778 | * Encode RENAME request | |
1779 | */ | |
8687b63a | 1780 | static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) |
1da177e4 LT |
1781 | { |
1782 | struct xdr_stream xdr; | |
1783 | struct compound_hdr hdr = { | |
66cc0429 | 1784 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1785 | }; |
1da177e4 LT |
1786 | |
1787 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1788 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1789 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1790 | encode_putfh(&xdr, args->old_dir, &hdr); |
1791 | encode_savefh(&xdr, &hdr); | |
1792 | encode_putfh(&xdr, args->new_dir, &hdr); | |
1793 | encode_rename(&xdr, args->old_name, args->new_name, &hdr); | |
1794 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1795 | encode_restorefh(&xdr, &hdr); | |
1796 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1797 | encode_nops(&hdr); |
cf8cdbe5 | 1798 | return 0; |
1da177e4 LT |
1799 | } |
1800 | ||
1801 | /* | |
1802 | * Encode LINK request | |
1803 | */ | |
8687b63a | 1804 | static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) |
1da177e4 LT |
1805 | { |
1806 | struct xdr_stream xdr; | |
1807 | struct compound_hdr hdr = { | |
66cc0429 | 1808 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1809 | }; |
1da177e4 LT |
1810 | |
1811 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1812 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1813 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1814 | encode_putfh(&xdr, args->fh, &hdr); |
1815 | encode_savefh(&xdr, &hdr); | |
1816 | encode_putfh(&xdr, args->dir_fh, &hdr); | |
1817 | encode_link(&xdr, args->name, &hdr); | |
1818 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1819 | encode_restorefh(&xdr, &hdr); | |
1820 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1821 | encode_nops(&hdr); |
cf8cdbe5 | 1822 | return 0; |
1da177e4 LT |
1823 | } |
1824 | ||
1825 | /* | |
1826 | * Encode CREATE request | |
1827 | */ | |
8687b63a | 1828 | static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1829 | { |
1830 | struct xdr_stream xdr; | |
1831 | struct compound_hdr hdr = { | |
66cc0429 | 1832 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1833 | }; |
1da177e4 LT |
1834 | |
1835 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1836 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1837 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1838 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1839 | encode_savefh(&xdr, &hdr); | |
1840 | encode_create(&xdr, args, &hdr); | |
1841 | encode_getfh(&xdr, &hdr); | |
1842 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1843 | encode_restorefh(&xdr, &hdr); | |
1844 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1845 | encode_nops(&hdr); |
cf8cdbe5 | 1846 | return 0; |
1da177e4 LT |
1847 | } |
1848 | ||
1849 | /* | |
1850 | * Encode SYMLINK request | |
1851 | */ | |
8687b63a | 1852 | static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1853 | { |
1854 | return nfs4_xdr_enc_create(req, p, args); | |
1855 | } | |
1856 | ||
1857 | /* | |
1858 | * Encode GETATTR request | |
1859 | */ | |
8687b63a | 1860 | static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) |
1da177e4 LT |
1861 | { |
1862 | struct xdr_stream xdr; | |
1863 | struct compound_hdr hdr = { | |
66cc0429 | 1864 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1865 | }; |
1da177e4 LT |
1866 | |
1867 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1868 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1869 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1870 | encode_putfh(&xdr, args->fh, &hdr); |
1871 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1872 | encode_nops(&hdr); |
cf8cdbe5 | 1873 | return 0; |
1da177e4 LT |
1874 | } |
1875 | ||
1876 | /* | |
1877 | * Encode a CLOSE request | |
1878 | */ | |
8687b63a | 1879 | static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 | 1880 | { |
05d564fe AA |
1881 | struct xdr_stream xdr; |
1882 | struct compound_hdr hdr = { | |
66cc0429 | 1883 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 1884 | }; |
05d564fe AA |
1885 | |
1886 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1887 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1888 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1889 | encode_putfh(&xdr, args->fh, &hdr); |
1890 | encode_close(&xdr, args, &hdr); | |
1891 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1892 | encode_nops(&hdr); |
cf8cdbe5 | 1893 | return 0; |
1da177e4 LT |
1894 | } |
1895 | ||
1896 | /* | |
1897 | * Encode an OPEN request | |
1898 | */ | |
8687b63a | 1899 | static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1900 | { |
1901 | struct xdr_stream xdr; | |
1902 | struct compound_hdr hdr = { | |
66cc0429 | 1903 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1904 | }; |
1da177e4 LT |
1905 | |
1906 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1907 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1908 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1909 | encode_putfh(&xdr, args->fh, &hdr); |
1910 | encode_savefh(&xdr, &hdr); | |
1911 | encode_open(&xdr, args, &hdr); | |
1912 | encode_getfh(&xdr, &hdr); | |
1913 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1914 | encode_restorefh(&xdr, &hdr); | |
1915 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1916 | encode_nops(&hdr); |
cf8cdbe5 | 1917 | return 0; |
1da177e4 LT |
1918 | } |
1919 | ||
1920 | /* | |
1921 | * Encode an OPEN_CONFIRM request | |
1922 | */ | |
8687b63a | 1923 | static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) |
1da177e4 LT |
1924 | { |
1925 | struct xdr_stream xdr; | |
1926 | struct compound_hdr hdr = { | |
d017931c | 1927 | .nops = 0, |
1da177e4 | 1928 | }; |
1da177e4 LT |
1929 | |
1930 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1931 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1932 | encode_putfh(&xdr, args->fh, &hdr); |
1933 | encode_open_confirm(&xdr, args, &hdr); | |
d017931c | 1934 | encode_nops(&hdr); |
cf8cdbe5 | 1935 | return 0; |
1da177e4 LT |
1936 | } |
1937 | ||
1938 | /* | |
1939 | * Encode an OPEN request with no attributes. | |
1940 | */ | |
8687b63a | 1941 | static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1942 | { |
1943 | struct xdr_stream xdr; | |
1944 | struct compound_hdr hdr = { | |
66cc0429 | 1945 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1946 | }; |
1da177e4 LT |
1947 | |
1948 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1949 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1950 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1951 | encode_putfh(&xdr, args->fh, &hdr); |
1952 | encode_open(&xdr, args, &hdr); | |
1953 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1954 | encode_nops(&hdr); |
cf8cdbe5 | 1955 | return 0; |
1da177e4 LT |
1956 | } |
1957 | ||
1958 | /* | |
1959 | * Encode an OPEN_DOWNGRADE request | |
1960 | */ | |
8687b63a | 1961 | static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 LT |
1962 | { |
1963 | struct xdr_stream xdr; | |
1964 | struct compound_hdr hdr = { | |
66cc0429 | 1965 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1966 | }; |
1da177e4 LT |
1967 | |
1968 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1969 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1970 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1971 | encode_putfh(&xdr, args->fh, &hdr); |
1972 | encode_open_downgrade(&xdr, args, &hdr); | |
1973 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1974 | encode_nops(&hdr); |
cf8cdbe5 | 1975 | return 0; |
1da177e4 LT |
1976 | } |
1977 | ||
1978 | /* | |
1979 | * Encode a LOCK request | |
1980 | */ | |
8687b63a | 1981 | static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) |
1da177e4 LT |
1982 | { |
1983 | struct xdr_stream xdr; | |
1984 | struct compound_hdr hdr = { | |
66cc0429 | 1985 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1986 | }; |
1da177e4 LT |
1987 | |
1988 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1989 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1990 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1991 | encode_putfh(&xdr, args->fh, &hdr); |
1992 | encode_lock(&xdr, args, &hdr); | |
d017931c | 1993 | encode_nops(&hdr); |
cf8cdbe5 | 1994 | return 0; |
1da177e4 LT |
1995 | } |
1996 | ||
1997 | /* | |
1998 | * Encode a LOCKT request | |
1999 | */ | |
8687b63a | 2000 | static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) |
1da177e4 LT |
2001 | { |
2002 | struct xdr_stream xdr; | |
2003 | struct compound_hdr hdr = { | |
66cc0429 | 2004 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2005 | }; |
1da177e4 LT |
2006 | |
2007 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2008 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2009 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2010 | encode_putfh(&xdr, args->fh, &hdr); |
2011 | encode_lockt(&xdr, args, &hdr); | |
d017931c | 2012 | encode_nops(&hdr); |
cf8cdbe5 | 2013 | return 0; |
1da177e4 LT |
2014 | } |
2015 | ||
2016 | /* | |
2017 | * Encode a LOCKU request | |
2018 | */ | |
8687b63a | 2019 | static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) |
1da177e4 LT |
2020 | { |
2021 | struct xdr_stream xdr; | |
2022 | struct compound_hdr hdr = { | |
66cc0429 | 2023 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2024 | }; |
1da177e4 LT |
2025 | |
2026 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2027 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2028 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2029 | encode_putfh(&xdr, args->fh, &hdr); |
2030 | encode_locku(&xdr, args, &hdr); | |
d017931c | 2031 | encode_nops(&hdr); |
cf8cdbe5 | 2032 | return 0; |
1da177e4 LT |
2033 | } |
2034 | ||
2035 | /* | |
2036 | * Encode a READLINK request | |
2037 | */ | |
8687b63a | 2038 | static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) |
1da177e4 LT |
2039 | { |
2040 | struct xdr_stream xdr; | |
2041 | struct compound_hdr hdr = { | |
66cc0429 | 2042 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2043 | }; |
1da177e4 LT |
2044 | |
2045 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2046 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2047 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2048 | encode_putfh(&xdr, args->fh, &hdr); |
2049 | encode_readlink(&xdr, args, req, &hdr); | |
e3a535e1 | 2050 | |
28f56694 | 2051 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
e3a535e1 | 2052 | args->pgbase, args->pglen); |
d017931c | 2053 | encode_nops(&hdr); |
cf8cdbe5 | 2054 | return 0; |
1da177e4 LT |
2055 | } |
2056 | ||
2057 | /* | |
2058 | * Encode a READDIR request | |
2059 | */ | |
8687b63a | 2060 | static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) |
1da177e4 LT |
2061 | { |
2062 | struct xdr_stream xdr; | |
2063 | struct compound_hdr hdr = { | |
66cc0429 | 2064 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2065 | }; |
1da177e4 LT |
2066 | |
2067 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2068 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2069 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2070 | encode_putfh(&xdr, args->fh, &hdr); |
2071 | encode_readdir(&xdr, args, req, &hdr); | |
d6ac02df | 2072 | |
28f56694 | 2073 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
d6ac02df TM |
2074 | args->pgbase, args->count); |
2075 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", | |
28f56694 | 2076 | __func__, hdr.replen << 2, args->pages, |
d6ac02df | 2077 | args->pgbase, args->count); |
d017931c | 2078 | encode_nops(&hdr); |
cf8cdbe5 | 2079 | return 0; |
1da177e4 LT |
2080 | } |
2081 | ||
2082 | /* | |
2083 | * Encode a READ request | |
2084 | */ | |
8687b63a | 2085 | static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) |
1da177e4 | 2086 | { |
1da177e4 LT |
2087 | struct xdr_stream xdr; |
2088 | struct compound_hdr hdr = { | |
66cc0429 | 2089 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2090 | }; |
1da177e4 LT |
2091 | |
2092 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2093 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2094 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2095 | encode_putfh(&xdr, args->fh, &hdr); |
2096 | encode_read(&xdr, args, &hdr); | |
1da177e4 | 2097 | |
28f56694 | 2098 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, |
1da177e4 | 2099 | args->pages, args->pgbase, args->count); |
4f22ccc3 | 2100 | req->rq_rcv_buf.flags |= XDRBUF_READ; |
d017931c | 2101 | encode_nops(&hdr); |
cf8cdbe5 | 2102 | return 0; |
1da177e4 LT |
2103 | } |
2104 | ||
2105 | /* | |
2106 | * Encode an SETATTR request | |
2107 | */ | |
8687b63a | 2108 | static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) |
1da177e4 | 2109 | { |
05d564fe AA |
2110 | struct xdr_stream xdr; |
2111 | struct compound_hdr hdr = { | |
66cc0429 | 2112 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 2113 | }; |
05d564fe AA |
2114 | |
2115 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2116 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2117 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2118 | encode_putfh(&xdr, args->fh, &hdr); |
2119 | encode_setattr(&xdr, args, args->server, &hdr); | |
2120 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2121 | encode_nops(&hdr); |
cf8cdbe5 | 2122 | return 0; |
1da177e4 LT |
2123 | } |
2124 | ||
029d105e BF |
2125 | /* |
2126 | * Encode a GETACL request | |
2127 | */ | |
2128 | static int | |
8687b63a | 2129 | nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, |
029d105e BF |
2130 | struct nfs_getaclargs *args) |
2131 | { | |
2132 | struct xdr_stream xdr; | |
029d105e | 2133 | struct compound_hdr hdr = { |
66cc0429 | 2134 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
029d105e | 2135 | }; |
28f56694 | 2136 | uint32_t replen; |
029d105e BF |
2137 | |
2138 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2139 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2140 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 | 2141 | encode_putfh(&xdr, args->fh, &hdr); |
28f56694 | 2142 | replen = hdr.replen + nfs4_fattr_bitmap_maxsz + 1; |
cf8cdbe5 AA |
2143 | encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); |
2144 | ||
28f56694 | 2145 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, |
029d105e | 2146 | args->acl_pages, args->acl_pgbase, args->acl_len); |
d017931c | 2147 | encode_nops(&hdr); |
cf8cdbe5 | 2148 | return 0; |
029d105e BF |
2149 | } |
2150 | ||
1da177e4 LT |
2151 | /* |
2152 | * Encode a WRITE request | |
2153 | */ | |
8687b63a | 2154 | static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
2155 | { |
2156 | struct xdr_stream xdr; | |
2157 | struct compound_hdr hdr = { | |
66cc0429 | 2158 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2159 | }; |
1da177e4 LT |
2160 | |
2161 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2162 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2163 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2164 | encode_putfh(&xdr, args->fh, &hdr); |
2165 | encode_write(&xdr, args, &hdr); | |
4f22ccc3 | 2166 | req->rq_snd_buf.flags |= XDRBUF_WRITE; |
cf8cdbe5 | 2167 | encode_getfattr(&xdr, args->bitmask, &hdr); |
d017931c | 2168 | encode_nops(&hdr); |
cf8cdbe5 | 2169 | return 0; |
1da177e4 LT |
2170 | } |
2171 | ||
2172 | /* | |
2173 | * a COMMIT request | |
2174 | */ | |
8687b63a | 2175 | static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
2176 | { |
2177 | struct xdr_stream xdr; | |
2178 | struct compound_hdr hdr = { | |
66cc0429 | 2179 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2180 | }; |
1da177e4 LT |
2181 | |
2182 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2183 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2184 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2185 | encode_putfh(&xdr, args->fh, &hdr); |
2186 | encode_commit(&xdr, args, &hdr); | |
2187 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2188 | encode_nops(&hdr); |
cf8cdbe5 | 2189 | return 0; |
1da177e4 LT |
2190 | } |
2191 | ||
2192 | /* | |
2193 | * FSINFO request | |
2194 | */ | |
8687b63a | 2195 | static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) |
1da177e4 LT |
2196 | { |
2197 | struct xdr_stream xdr; | |
2198 | struct compound_hdr hdr = { | |
66cc0429 | 2199 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2200 | }; |
1da177e4 LT |
2201 | |
2202 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2203 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2204 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2205 | encode_putfh(&xdr, args->fh, &hdr); |
2206 | encode_fsinfo(&xdr, args->bitmask, &hdr); | |
d017931c | 2207 | encode_nops(&hdr); |
cf8cdbe5 | 2208 | return 0; |
1da177e4 LT |
2209 | } |
2210 | ||
2211 | /* | |
2212 | * a PATHCONF request | |
2213 | */ | |
8687b63a | 2214 | static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) |
1da177e4 | 2215 | { |
1da177e4 LT |
2216 | struct xdr_stream xdr; |
2217 | struct compound_hdr hdr = { | |
66cc0429 | 2218 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2219 | }; |
1da177e4 LT |
2220 | |
2221 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2222 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2223 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2224 | encode_putfh(&xdr, args->fh, &hdr); |
2225 | encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], | |
2226 | &hdr); | |
d017931c | 2227 | encode_nops(&hdr); |
cf8cdbe5 | 2228 | return 0; |
1da177e4 LT |
2229 | } |
2230 | ||
2231 | /* | |
2232 | * a STATFS request | |
2233 | */ | |
8687b63a | 2234 | static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) |
1da177e4 | 2235 | { |
1da177e4 LT |
2236 | struct xdr_stream xdr; |
2237 | struct compound_hdr hdr = { | |
66cc0429 | 2238 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2239 | }; |
1da177e4 LT |
2240 | |
2241 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2242 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2243 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2244 | encode_putfh(&xdr, args->fh, &hdr); |
2245 | encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], | |
2246 | args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); | |
d017931c | 2247 | encode_nops(&hdr); |
cf8cdbe5 | 2248 | return 0; |
1da177e4 LT |
2249 | } |
2250 | ||
2251 | /* | |
2252 | * GETATTR_BITMAP request | |
2253 | */ | |
43652ad5 BH |
2254 | static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, |
2255 | struct nfs4_server_caps_arg *args) | |
1da177e4 LT |
2256 | { |
2257 | struct xdr_stream xdr; | |
2258 | struct compound_hdr hdr = { | |
66cc0429 | 2259 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2260 | }; |
1da177e4 LT |
2261 | |
2262 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2263 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2264 | encode_sequence(&xdr, &args->seq_args, &hdr); |
43652ad5 | 2265 | encode_putfh(&xdr, args->fhandle, &hdr); |
cf8cdbe5 AA |
2266 | encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| |
2267 | FATTR4_WORD0_LINK_SUPPORT| | |
2268 | FATTR4_WORD0_SYMLINK_SUPPORT| | |
2269 | FATTR4_WORD0_ACLSUPPORT, &hdr); | |
d017931c | 2270 | encode_nops(&hdr); |
cf8cdbe5 | 2271 | return 0; |
1da177e4 LT |
2272 | } |
2273 | ||
2274 | /* | |
2275 | * a RENEW request | |
2276 | */ | |
8687b63a | 2277 | static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2278 | { |
2279 | struct xdr_stream xdr; | |
2280 | struct compound_hdr hdr = { | |
d017931c | 2281 | .nops = 0, |
1da177e4 LT |
2282 | }; |
2283 | ||
2284 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2285 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 2286 | encode_renew(&xdr, clp, &hdr); |
d017931c | 2287 | encode_nops(&hdr); |
cf8cdbe5 | 2288 | return 0; |
1da177e4 LT |
2289 | } |
2290 | ||
2291 | /* | |
2292 | * a SETCLIENTID request | |
2293 | */ | |
8687b63a | 2294 | static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) |
1da177e4 LT |
2295 | { |
2296 | struct xdr_stream xdr; | |
2297 | struct compound_hdr hdr = { | |
d017931c | 2298 | .nops = 0, |
1da177e4 LT |
2299 | }; |
2300 | ||
2301 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2302 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 2303 | encode_setclientid(&xdr, sc, &hdr); |
d017931c | 2304 | encode_nops(&hdr); |
cf8cdbe5 | 2305 | return 0; |
1da177e4 LT |
2306 | } |
2307 | ||
2308 | /* | |
2309 | * a SETCLIENTID_CONFIRM request | |
2310 | */ | |
8687b63a | 2311 | static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2312 | { |
2313 | struct xdr_stream xdr; | |
2314 | struct compound_hdr hdr = { | |
d017931c | 2315 | .nops = 0, |
1da177e4 LT |
2316 | }; |
2317 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
1da177e4 LT |
2318 | |
2319 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2320 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
2321 | encode_setclientid_confirm(&xdr, clp, &hdr); |
2322 | encode_putrootfh(&xdr, &hdr); | |
2323 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
d017931c | 2324 | encode_nops(&hdr); |
cf8cdbe5 | 2325 | return 0; |
1da177e4 LT |
2326 | } |
2327 | ||
2328 | /* | |
2329 | * DELEGRETURN request | |
2330 | */ | |
8687b63a | 2331 | static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) |
1da177e4 LT |
2332 | { |
2333 | struct xdr_stream xdr; | |
2334 | struct compound_hdr hdr = { | |
66cc0429 | 2335 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2336 | }; |
1da177e4 LT |
2337 | |
2338 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2339 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2340 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2341 | encode_putfh(&xdr, args->fhandle, &hdr); |
2342 | encode_delegreturn(&xdr, args->stateid, &hdr); | |
2343 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2344 | encode_nops(&hdr); |
cf8cdbe5 | 2345 | return 0; |
1da177e4 LT |
2346 | } |
2347 | ||
683b57b4 TM |
2348 | /* |
2349 | * Encode FS_LOCATIONS request | |
2350 | */ | |
8687b63a | 2351 | static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) |
683b57b4 TM |
2352 | { |
2353 | struct xdr_stream xdr; | |
2354 | struct compound_hdr hdr = { | |
66cc0429 | 2355 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
683b57b4 | 2356 | }; |
28f56694 | 2357 | uint32_t replen; |
683b57b4 TM |
2358 | |
2359 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2360 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2361 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2362 | encode_putfh(&xdr, args->dir_fh, &hdr); |
2363 | encode_lookup(&xdr, args->name, &hdr); | |
28f56694 | 2364 | replen = hdr.replen; /* get the attribute into args->page */ |
cf8cdbe5 AA |
2365 | encode_fs_locations(&xdr, args->bitmask, &hdr); |
2366 | ||
28f56694 | 2367 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, |
683b57b4 | 2368 | 0, PAGE_SIZE); |
d017931c | 2369 | encode_nops(&hdr); |
cf8cdbe5 | 2370 | return 0; |
683b57b4 TM |
2371 | } |
2372 | ||
99fe60d0 BH |
2373 | #if defined(CONFIG_NFS_V4_1) |
2374 | /* | |
2375 | * EXCHANGE_ID request | |
2376 | */ | |
2377 | static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, | |
2378 | struct nfs41_exchange_id_args *args) | |
2379 | { | |
2380 | struct xdr_stream xdr; | |
2381 | struct compound_hdr hdr = { | |
2382 | .minorversion = args->client->cl_minorversion, | |
2383 | }; | |
2384 | ||
2385 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2386 | encode_compound_hdr(&xdr, req, &hdr); | |
2387 | encode_exchange_id(&xdr, args, &hdr); | |
2388 | encode_nops(&hdr); | |
2389 | return 0; | |
2390 | } | |
2050f0cc | 2391 | |
fc931582 AA |
2392 | /* |
2393 | * a CREATE_SESSION request | |
2394 | */ | |
2395 | static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, | |
2396 | struct nfs41_create_session_args *args) | |
2397 | { | |
2398 | struct xdr_stream xdr; | |
2399 | struct compound_hdr hdr = { | |
2400 | .minorversion = args->client->cl_minorversion, | |
2401 | }; | |
2402 | ||
2403 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2404 | encode_compound_hdr(&xdr, req, &hdr); | |
2405 | encode_create_session(&xdr, args, &hdr); | |
2406 | encode_nops(&hdr); | |
2407 | return 0; | |
2408 | } | |
2409 | ||
0f3e66c6 AA |
2410 | /* |
2411 | * a DESTROY_SESSION request | |
2412 | */ | |
2413 | static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, | |
2414 | struct nfs4_session *session) | |
2415 | { | |
2416 | struct xdr_stream xdr; | |
2417 | struct compound_hdr hdr = { | |
2418 | .minorversion = session->clp->cl_minorversion, | |
2419 | }; | |
2420 | ||
2421 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2422 | encode_compound_hdr(&xdr, req, &hdr); | |
2423 | encode_destroy_session(&xdr, session, &hdr); | |
2424 | encode_nops(&hdr); | |
2425 | return 0; | |
2426 | } | |
2427 | ||
fc01cea9 AA |
2428 | /* |
2429 | * a SEQUENCE request | |
2430 | */ | |
2431 | static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, | |
2432 | struct nfs4_sequence_args *args) | |
2433 | { | |
2434 | struct xdr_stream xdr; | |
2435 | struct compound_hdr hdr = { | |
2436 | .minorversion = nfs4_xdr_minorversion(args), | |
2437 | }; | |
2438 | ||
2439 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2440 | encode_compound_hdr(&xdr, req, &hdr); | |
2441 | encode_sequence(&xdr, args, &hdr); | |
2442 | encode_nops(&hdr); | |
2443 | return 0; | |
2444 | } | |
2445 | ||
2050f0cc AA |
2446 | /* |
2447 | * a GET_LEASE_TIME request | |
2448 | */ | |
2449 | static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, | |
2450 | struct nfs4_get_lease_time_args *args) | |
2451 | { | |
2452 | struct xdr_stream xdr; | |
2453 | struct compound_hdr hdr = { | |
2454 | .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), | |
2455 | }; | |
2456 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
2457 | ||
2458 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2459 | encode_compound_hdr(&xdr, req, &hdr); | |
2460 | encode_sequence(&xdr, &args->la_seq_args, &hdr); | |
2461 | encode_putrootfh(&xdr, &hdr); | |
2462 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
2463 | encode_nops(&hdr); | |
2464 | return 0; | |
2465 | } | |
99fe60d0 BH |
2466 | #endif /* CONFIG_NFS_V4_1 */ |
2467 | ||
1da177e4 LT |
2468 | /* |
2469 | * START OF "GENERIC" DECODE ROUTINES. | |
2470 | * These may look a little ugly since they are imported from a "generic" | |
2471 | * set of XDR encode/decode routines which are intended to be shared by | |
2472 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
2473 | * | |
2474 | * If the pain of reading these is too great, it should be a straightforward | |
2475 | * task to translate them into Linux-specific versions which are more | |
2476 | * consistent with the style used in NFSv2/v3... | |
2477 | */ | |
2478 | #define READ32(x) (x) = ntohl(*p++) | |
2479 | #define READ64(x) do { \ | |
2480 | (x) = (u64)ntohl(*p++) << 32; \ | |
2481 | (x) |= ntohl(*p++); \ | |
2482 | } while (0) | |
2483 | #define READTIME(x) do { \ | |
2484 | p++; \ | |
2485 | (x.tv_sec) = ntohl(*p++); \ | |
2486 | (x.tv_nsec) = ntohl(*p++); \ | |
2487 | } while (0) | |
2488 | #define COPYMEM(x,nbytes) do { \ | |
2489 | memcpy((x), p, nbytes); \ | |
2490 | p += XDR_QUADLEN(nbytes); \ | |
2491 | } while (0) | |
2492 | ||
2493 | #define READ_BUF(nbytes) do { \ | |
2494 | p = xdr_inline_decode(xdr, nbytes); \ | |
e4cc6ee2 | 2495 | if (unlikely(!p)) { \ |
fe82a183 | 2496 | dprintk("nfs: %s: prematurely hit end of receive" \ |
3110ff80 | 2497 | " buffer\n", __func__); \ |
fe82a183 | 2498 | dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ |
3110ff80 | 2499 | __func__, xdr->p, nbytes, xdr->end); \ |
1da177e4 LT |
2500 | return -EIO; \ |
2501 | } \ | |
2502 | } while (0) | |
2503 | ||
683b57b4 | 2504 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
1da177e4 | 2505 | { |
8687b63a | 2506 | __be32 *p; |
1da177e4 LT |
2507 | |
2508 | READ_BUF(4); | |
2509 | READ32(*len); | |
2510 | READ_BUF(*len); | |
2511 | *string = (char *)p; | |
2512 | return 0; | |
2513 | } | |
2514 | ||
2515 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
2516 | { | |
8687b63a | 2517 | __be32 *p; |
1da177e4 LT |
2518 | |
2519 | READ_BUF(8); | |
2520 | READ32(hdr->status); | |
2521 | READ32(hdr->taglen); | |
6c0195a4 | 2522 | |
1da177e4 LT |
2523 | READ_BUF(hdr->taglen + 4); |
2524 | hdr->tag = (char *)p; | |
2525 | p += XDR_QUADLEN(hdr->taglen); | |
2526 | READ32(hdr->nops); | |
aadf6152 BH |
2527 | if (unlikely(hdr->nops < 1)) |
2528 | return nfs4_stat_to_errno(hdr->status); | |
1da177e4 LT |
2529 | return 0; |
2530 | } | |
2531 | ||
2532 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) | |
2533 | { | |
8687b63a | 2534 | __be32 *p; |
1da177e4 LT |
2535 | uint32_t opnum; |
2536 | int32_t nfserr; | |
2537 | ||
2538 | READ_BUF(8); | |
2539 | READ32(opnum); | |
2540 | if (opnum != expected) { | |
fe82a183 CL |
2541 | dprintk("nfs: Server returned operation" |
2542 | " %d but we issued a request for %d\n", | |
1da177e4 LT |
2543 | opnum, expected); |
2544 | return -EIO; | |
2545 | } | |
2546 | READ32(nfserr); | |
2547 | if (nfserr != NFS_OK) | |
856dff3d | 2548 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
2549 | return 0; |
2550 | } | |
2551 | ||
2552 | /* Dummy routine */ | |
adfa6f98 | 2553 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
1da177e4 | 2554 | { |
8687b63a | 2555 | __be32 *p; |
683b57b4 | 2556 | unsigned int strlen; |
1da177e4 LT |
2557 | char *str; |
2558 | ||
2559 | READ_BUF(12); | |
2560 | return decode_opaque_inline(xdr, &strlen, &str); | |
2561 | } | |
2562 | ||
2563 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) | |
2564 | { | |
8687b63a AV |
2565 | uint32_t bmlen; |
2566 | __be32 *p; | |
1da177e4 LT |
2567 | |
2568 | READ_BUF(4); | |
2569 | READ32(bmlen); | |
2570 | ||
2571 | bitmap[0] = bitmap[1] = 0; | |
2572 | READ_BUF((bmlen << 2)); | |
2573 | if (bmlen > 0) { | |
2574 | READ32(bitmap[0]); | |
2575 | if (bmlen > 1) | |
2576 | READ32(bitmap[1]); | |
2577 | } | |
2578 | return 0; | |
2579 | } | |
2580 | ||
8687b63a | 2581 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
1da177e4 | 2582 | { |
8687b63a | 2583 | __be32 *p; |
1da177e4 LT |
2584 | |
2585 | READ_BUF(4); | |
2586 | READ32(*attrlen); | |
2587 | *savep = xdr->p; | |
2588 | return 0; | |
2589 | } | |
2590 | ||
2591 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) | |
2592 | { | |
2593 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { | |
2594 | decode_attr_bitmap(xdr, bitmask); | |
2595 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; | |
2596 | } else | |
2597 | bitmask[0] = bitmask[1] = 0; | |
44109241 | 2598 | dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); |
1da177e4 LT |
2599 | return 0; |
2600 | } | |
2601 | ||
2602 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) | |
2603 | { | |
8687b63a | 2604 | __be32 *p; |
409924e4 | 2605 | int ret = 0; |
1da177e4 LT |
2606 | |
2607 | *type = 0; | |
2608 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) | |
2609 | return -EIO; | |
2610 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { | |
2611 | READ_BUF(4); | |
2612 | READ32(*type); | |
2613 | if (*type < NF4REG || *type > NF4NAMEDATTR) { | |
3110ff80 | 2614 | dprintk("%s: bad type %d\n", __func__, *type); |
1da177e4 LT |
2615 | return -EIO; |
2616 | } | |
2617 | bitmap[0] &= ~FATTR4_WORD0_TYPE; | |
409924e4 | 2618 | ret = NFS_ATTR_FATTR_TYPE; |
1da177e4 | 2619 | } |
bca79478 | 2620 | dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); |
409924e4 | 2621 | return ret; |
1da177e4 LT |
2622 | } |
2623 | ||
2624 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) | |
2625 | { | |
8687b63a | 2626 | __be32 *p; |
409924e4 | 2627 | int ret = 0; |
1da177e4 LT |
2628 | |
2629 | *change = 0; | |
2630 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) | |
2631 | return -EIO; | |
2632 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { | |
2633 | READ_BUF(8); | |
2634 | READ64(*change); | |
2635 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; | |
409924e4 | 2636 | ret = NFS_ATTR_FATTR_CHANGE; |
1da177e4 | 2637 | } |
3110ff80 | 2638 | dprintk("%s: change attribute=%Lu\n", __func__, |
1da177e4 | 2639 | (unsigned long long)*change); |
409924e4 | 2640 | return ret; |
1da177e4 LT |
2641 | } |
2642 | ||
2643 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) | |
2644 | { | |
8687b63a | 2645 | __be32 *p; |
409924e4 | 2646 | int ret = 0; |
1da177e4 LT |
2647 | |
2648 | *size = 0; | |
2649 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) | |
2650 | return -EIO; | |
2651 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { | |
2652 | READ_BUF(8); | |
2653 | READ64(*size); | |
2654 | bitmap[0] &= ~FATTR4_WORD0_SIZE; | |
409924e4 | 2655 | ret = NFS_ATTR_FATTR_SIZE; |
1da177e4 | 2656 | } |
3110ff80 | 2657 | dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); |
409924e4 | 2658 | return ret; |
1da177e4 LT |
2659 | } |
2660 | ||
2661 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2662 | { | |
8687b63a | 2663 | __be32 *p; |
1da177e4 LT |
2664 | |
2665 | *res = 0; | |
2666 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) | |
2667 | return -EIO; | |
2668 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { | |
2669 | READ_BUF(4); | |
2670 | READ32(*res); | |
2671 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; | |
2672 | } | |
3110ff80 | 2673 | dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2674 | return 0; |
2675 | } | |
2676 | ||
2677 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2678 | { | |
8687b63a | 2679 | __be32 *p; |
1da177e4 LT |
2680 | |
2681 | *res = 0; | |
2682 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) | |
2683 | return -EIO; | |
2684 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { | |
2685 | READ_BUF(4); | |
2686 | READ32(*res); | |
2687 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; | |
2688 | } | |
3110ff80 | 2689 | dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2690 | return 0; |
2691 | } | |
2692 | ||
8b4bdcf8 | 2693 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
1da177e4 | 2694 | { |
8687b63a | 2695 | __be32 *p; |
409924e4 | 2696 | int ret = 0; |
1da177e4 LT |
2697 | |
2698 | fsid->major = 0; | |
2699 | fsid->minor = 0; | |
2700 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) | |
2701 | return -EIO; | |
2702 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { | |
2703 | READ_BUF(16); | |
2704 | READ64(fsid->major); | |
2705 | READ64(fsid->minor); | |
2706 | bitmap[0] &= ~FATTR4_WORD0_FSID; | |
409924e4 | 2707 | ret = NFS_ATTR_FATTR_FSID; |
1da177e4 | 2708 | } |
3110ff80 | 2709 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, |
1da177e4 LT |
2710 | (unsigned long long)fsid->major, |
2711 | (unsigned long long)fsid->minor); | |
409924e4 | 2712 | return ret; |
1da177e4 LT |
2713 | } |
2714 | ||
2715 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2716 | { | |
8687b63a | 2717 | __be32 *p; |
1da177e4 LT |
2718 | |
2719 | *res = 60; | |
2720 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) | |
2721 | return -EIO; | |
2722 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { | |
2723 | READ_BUF(4); | |
2724 | READ32(*res); | |
2725 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; | |
2726 | } | |
3110ff80 | 2727 | dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2728 | return 0; |
2729 | } | |
2730 | ||
2731 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2732 | { | |
8687b63a | 2733 | __be32 *p; |
1da177e4 LT |
2734 | |
2735 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; | |
2736 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) | |
2737 | return -EIO; | |
2738 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { | |
2739 | READ_BUF(4); | |
2740 | READ32(*res); | |
2741 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; | |
2742 | } | |
3110ff80 | 2743 | dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2744 | return 0; |
2745 | } | |
2746 | ||
2747 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) | |
2748 | { | |
8687b63a | 2749 | __be32 *p; |
409924e4 | 2750 | int ret = 0; |
1da177e4 LT |
2751 | |
2752 | *fileid = 0; | |
2753 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) | |
2754 | return -EIO; | |
2755 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { | |
2756 | READ_BUF(8); | |
2757 | READ64(*fileid); | |
2758 | bitmap[0] &= ~FATTR4_WORD0_FILEID; | |
409924e4 | 2759 | ret = NFS_ATTR_FATTR_FILEID; |
1da177e4 | 2760 | } |
3110ff80 | 2761 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2762 | return ret; |
1da177e4 LT |
2763 | } |
2764 | ||
99baf625 MN |
2765 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
2766 | { | |
8687b63a | 2767 | __be32 *p; |
409924e4 | 2768 | int ret = 0; |
99baf625 MN |
2769 | |
2770 | *fileid = 0; | |
2771 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) | |
2772 | return -EIO; | |
2773 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { | |
2774 | READ_BUF(8); | |
2775 | READ64(*fileid); | |
2776 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
409924e4 | 2777 | ret = NFS_ATTR_FATTR_FILEID; |
99baf625 | 2778 | } |
3110ff80 | 2779 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2780 | return ret; |
99baf625 MN |
2781 | } |
2782 | ||
1da177e4 LT |
2783 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2784 | { | |
8687b63a | 2785 | __be32 *p; |
1da177e4 LT |
2786 | int status = 0; |
2787 | ||
2788 | *res = 0; | |
2789 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) | |
2790 | return -EIO; | |
2791 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { | |
2792 | READ_BUF(8); | |
2793 | READ64(*res); | |
2794 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; | |
2795 | } | |
3110ff80 | 2796 | dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2797 | return status; |
2798 | } | |
2799 | ||
2800 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2801 | { | |
8687b63a | 2802 | __be32 *p; |
1da177e4 LT |
2803 | int status = 0; |
2804 | ||
2805 | *res = 0; | |
2806 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) | |
2807 | return -EIO; | |
2808 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { | |
2809 | READ_BUF(8); | |
2810 | READ64(*res); | |
2811 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; | |
2812 | } | |
3110ff80 | 2813 | dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2814 | return status; |
2815 | } | |
2816 | ||
2817 | static int decode_attr_files_total(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_TOTAL - 1U))) | |
2824 | return -EIO; | |
2825 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { | |
2826 | READ_BUF(8); | |
2827 | READ64(*res); | |
2828 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; | |
2829 | } | |
3110ff80 | 2830 | dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2831 | return status; |
2832 | } | |
2833 | ||
7aaa0b3b MN |
2834 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
2835 | { | |
464ad6b1 | 2836 | u32 n; |
8687b63a | 2837 | __be32 *p; |
7aaa0b3b MN |
2838 | int status = 0; |
2839 | ||
2840 | READ_BUF(4); | |
2841 | READ32(n); | |
33a43f28 AA |
2842 | if (n == 0) |
2843 | goto root_path; | |
7aaa0b3b MN |
2844 | dprintk("path "); |
2845 | path->ncomponents = 0; | |
2846 | while (path->ncomponents < n) { | |
2847 | struct nfs4_string *component = &path->components[path->ncomponents]; | |
2848 | status = decode_opaque_inline(xdr, &component->len, &component->data); | |
2849 | if (unlikely(status != 0)) | |
2850 | goto out_eio; | |
2851 | if (path->ncomponents != n) | |
2852 | dprintk("/"); | |
2853 | dprintk("%s", component->data); | |
2854 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) | |
2855 | path->ncomponents++; | |
2856 | else { | |
2857 | dprintk("cannot parse %d components in path\n", n); | |
2858 | goto out_eio; | |
2859 | } | |
2860 | } | |
2861 | out: | |
2862 | dprintk("\n"); | |
2863 | return status; | |
33a43f28 AA |
2864 | root_path: |
2865 | /* a root pathname is sent as a zero component4 */ | |
2866 | path->ncomponents = 1; | |
2867 | path->components[0].len=0; | |
2868 | path->components[0].data=NULL; | |
2869 | dprintk("path /\n"); | |
2870 | goto out; | |
7aaa0b3b MN |
2871 | out_eio: |
2872 | dprintk(" status %d", status); | |
2873 | status = -EIO; | |
2874 | goto out; | |
2875 | } | |
2876 | ||
2877 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) | |
683b57b4 TM |
2878 | { |
2879 | int n; | |
8687b63a | 2880 | __be32 *p; |
683b57b4 TM |
2881 | int status = -EIO; |
2882 | ||
2883 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) | |
2884 | goto out; | |
2885 | status = 0; | |
2886 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) | |
2887 | goto out; | |
3110ff80 | 2888 | dprintk("%s: fsroot ", __func__); |
7aaa0b3b | 2889 | status = decode_pathname(xdr, &res->fs_path); |
683b57b4 TM |
2890 | if (unlikely(status != 0)) |
2891 | goto out; | |
2892 | READ_BUF(4); | |
2893 | READ32(n); | |
2894 | if (n <= 0) | |
2895 | goto out_eio; | |
2896 | res->nlocations = 0; | |
2897 | while (res->nlocations < n) { | |
464ad6b1 | 2898 | u32 m; |
7aaa0b3b | 2899 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; |
683b57b4 | 2900 | |
7aaa0b3b MN |
2901 | READ_BUF(4); |
2902 | READ32(m); | |
7aaa0b3b MN |
2903 | |
2904 | loc->nservers = 0; | |
3110ff80 | 2905 | dprintk("%s: servers ", __func__); |
7aaa0b3b MN |
2906 | while (loc->nservers < m) { |
2907 | struct nfs4_string *server = &loc->servers[loc->nservers]; | |
2908 | status = decode_opaque_inline(xdr, &server->len, &server->data); | |
2909 | if (unlikely(status != 0)) | |
2910 | goto out_eio; | |
2911 | dprintk("%s ", server->data); | |
2912 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) | |
2913 | loc->nservers++; | |
2914 | else { | |
464ad6b1 CL |
2915 | unsigned int i; |
2916 | dprintk("%s: using first %u of %u servers " | |
2917 | "returned for location %u\n", | |
3110ff80 | 2918 | __func__, |
464ad6b1 CL |
2919 | NFS4_FS_LOCATION_MAXSERVERS, |
2920 | m, res->nlocations); | |
7aaa0b3b | 2921 | for (i = loc->nservers; i < m; i++) { |
2e42c3e2 | 2922 | unsigned int len; |
7aaa0b3b MN |
2923 | char *data; |
2924 | status = decode_opaque_inline(xdr, &len, &data); | |
2925 | if (unlikely(status != 0)) | |
2926 | goto out_eio; | |
2927 | } | |
2928 | } | |
2929 | } | |
2930 | status = decode_pathname(xdr, &loc->rootpath); | |
683b57b4 TM |
2931 | if (unlikely(status != 0)) |
2932 | goto out_eio; | |
7aaa0b3b | 2933 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
683b57b4 TM |
2934 | res->nlocations++; |
2935 | } | |
409924e4 TM |
2936 | if (res->nlocations != 0) |
2937 | status = NFS_ATTR_FATTR_V4_REFERRAL; | |
683b57b4 | 2938 | out: |
3110ff80 | 2939 | dprintk("%s: fs_locations done, error = %d\n", __func__, status); |
683b57b4 TM |
2940 | return status; |
2941 | out_eio: | |
2942 | status = -EIO; | |
2943 | goto out; | |
2944 | } | |
2945 | ||
1da177e4 LT |
2946 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2947 | { | |
8687b63a | 2948 | __be32 *p; |
1da177e4 LT |
2949 | int status = 0; |
2950 | ||
2951 | *res = 0; | |
2952 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) | |
2953 | return -EIO; | |
2954 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { | |
2955 | READ_BUF(8); | |
2956 | READ64(*res); | |
2957 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; | |
2958 | } | |
3110ff80 | 2959 | dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2960 | return status; |
2961 | } | |
2962 | ||
2963 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) | |
2964 | { | |
8687b63a | 2965 | __be32 *p; |
1da177e4 LT |
2966 | int status = 0; |
2967 | ||
2968 | *maxlink = 1; | |
2969 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) | |
2970 | return -EIO; | |
2971 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { | |
2972 | READ_BUF(4); | |
2973 | READ32(*maxlink); | |
2974 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; | |
2975 | } | |
3110ff80 | 2976 | dprintk("%s: maxlink=%u\n", __func__, *maxlink); |
1da177e4 LT |
2977 | return status; |
2978 | } | |
2979 | ||
2980 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) | |
2981 | { | |
8687b63a | 2982 | __be32 *p; |
1da177e4 LT |
2983 | int status = 0; |
2984 | ||
2985 | *maxname = 1024; | |
2986 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) | |
2987 | return -EIO; | |
2988 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { | |
2989 | READ_BUF(4); | |
2990 | READ32(*maxname); | |
2991 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; | |
2992 | } | |
3110ff80 | 2993 | dprintk("%s: maxname=%u\n", __func__, *maxname); |
1da177e4 LT |
2994 | return status; |
2995 | } | |
2996 | ||
2997 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2998 | { | |
8687b63a | 2999 | __be32 *p; |
1da177e4 LT |
3000 | int status = 0; |
3001 | ||
3002 | *res = 1024; | |
3003 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) | |
3004 | return -EIO; | |
3005 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { | |
3006 | uint64_t maxread; | |
3007 | READ_BUF(8); | |
3008 | READ64(maxread); | |
3009 | if (maxread > 0x7FFFFFFF) | |
3010 | maxread = 0x7FFFFFFF; | |
3011 | *res = (uint32_t)maxread; | |
3012 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; | |
3013 | } | |
3110ff80 | 3014 | dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
3015 | return status; |
3016 | } | |
3017 | ||
3018 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
3019 | { | |
8687b63a | 3020 | __be32 *p; |
1da177e4 LT |
3021 | int status = 0; |
3022 | ||
3023 | *res = 1024; | |
3024 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) | |
3025 | return -EIO; | |
3026 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { | |
3027 | uint64_t maxwrite; | |
3028 | READ_BUF(8); | |
3029 | READ64(maxwrite); | |
3030 | if (maxwrite > 0x7FFFFFFF) | |
3031 | maxwrite = 0x7FFFFFFF; | |
3032 | *res = (uint32_t)maxwrite; | |
3033 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; | |
3034 | } | |
3110ff80 | 3035 | dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
3036 | return status; |
3037 | } | |
3038 | ||
bca79478 | 3039 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) |
1da177e4 | 3040 | { |
bca79478 | 3041 | uint32_t tmp; |
8687b63a | 3042 | __be32 *p; |
409924e4 | 3043 | int ret = 0; |
1da177e4 LT |
3044 | |
3045 | *mode = 0; | |
3046 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) | |
3047 | return -EIO; | |
3048 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { | |
3049 | READ_BUF(4); | |
bca79478 TM |
3050 | READ32(tmp); |
3051 | *mode = tmp & ~S_IFMT; | |
1da177e4 | 3052 | bitmap[1] &= ~FATTR4_WORD1_MODE; |
409924e4 | 3053 | ret = NFS_ATTR_FATTR_MODE; |
1da177e4 | 3054 | } |
3110ff80 | 3055 | dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); |
409924e4 | 3056 | return ret; |
1da177e4 LT |
3057 | } |
3058 | ||
3059 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) | |
3060 | { | |
8687b63a | 3061 | __be32 *p; |
409924e4 | 3062 | int ret = 0; |
1da177e4 LT |
3063 | |
3064 | *nlink = 1; | |
3065 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) | |
3066 | return -EIO; | |
3067 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { | |
3068 | READ_BUF(4); | |
3069 | READ32(*nlink); | |
3070 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; | |
409924e4 | 3071 | ret = NFS_ATTR_FATTR_NLINK; |
1da177e4 | 3072 | } |
3110ff80 | 3073 | dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); |
409924e4 | 3074 | return ret; |
1da177e4 LT |
3075 | } |
3076 | ||
2e42c3e2 | 3077 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) |
1da177e4 | 3078 | { |
8687b63a AV |
3079 | uint32_t len; |
3080 | __be32 *p; | |
409924e4 | 3081 | int ret = 0; |
1da177e4 LT |
3082 | |
3083 | *uid = -2; | |
3084 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) | |
3085 | return -EIO; | |
3086 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { | |
3087 | READ_BUF(4); | |
3088 | READ32(len); | |
3089 | READ_BUF(len); | |
3090 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
3091 | if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) |
3092 | ret = NFS_ATTR_FATTR_OWNER; | |
3093 | else | |
1da177e4 | 3094 | dprintk("%s: nfs_map_name_to_uid failed!\n", |
3110ff80 | 3095 | __func__); |
1da177e4 | 3096 | } else |
fe82a183 | 3097 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3098 | __func__, len); |
1da177e4 LT |
3099 | bitmap[1] &= ~FATTR4_WORD1_OWNER; |
3100 | } | |
3110ff80 | 3101 | dprintk("%s: uid=%d\n", __func__, (int)*uid); |
409924e4 | 3102 | return ret; |
1da177e4 LT |
3103 | } |
3104 | ||
2e42c3e2 | 3105 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) |
1da177e4 | 3106 | { |
8687b63a AV |
3107 | uint32_t len; |
3108 | __be32 *p; | |
409924e4 | 3109 | int ret = 0; |
1da177e4 LT |
3110 | |
3111 | *gid = -2; | |
3112 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) | |
3113 | return -EIO; | |
3114 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { | |
3115 | READ_BUF(4); | |
3116 | READ32(len); | |
3117 | READ_BUF(len); | |
3118 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
3119 | if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) |
3120 | ret = NFS_ATTR_FATTR_GROUP; | |
3121 | else | |
1da177e4 | 3122 | dprintk("%s: nfs_map_group_to_gid failed!\n", |
3110ff80 | 3123 | __func__); |
1da177e4 | 3124 | } else |
fe82a183 | 3125 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3126 | __func__, len); |
1da177e4 LT |
3127 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; |
3128 | } | |
3110ff80 | 3129 | dprintk("%s: gid=%d\n", __func__, (int)*gid); |
409924e4 | 3130 | return ret; |
1da177e4 LT |
3131 | } |
3132 | ||
3133 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) | |
3134 | { | |
8687b63a AV |
3135 | uint32_t major = 0, minor = 0; |
3136 | __be32 *p; | |
409924e4 | 3137 | int ret = 0; |
1da177e4 LT |
3138 | |
3139 | *rdev = MKDEV(0,0); | |
3140 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) | |
3141 | return -EIO; | |
3142 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { | |
3143 | dev_t tmp; | |
3144 | ||
3145 | READ_BUF(8); | |
3146 | READ32(major); | |
3147 | READ32(minor); | |
3148 | tmp = MKDEV(major, minor); | |
3149 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) | |
3150 | *rdev = tmp; | |
3151 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; | |
409924e4 | 3152 | ret = NFS_ATTR_FATTR_RDEV; |
1da177e4 | 3153 | } |
3110ff80 | 3154 | dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); |
409924e4 | 3155 | return ret; |
1da177e4 LT |
3156 | } |
3157 | ||
3158 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3159 | { | |
8687b63a | 3160 | __be32 *p; |
1da177e4 LT |
3161 | int status = 0; |
3162 | ||
3163 | *res = 0; | |
3164 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) | |
3165 | return -EIO; | |
3166 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { | |
3167 | READ_BUF(8); | |
3168 | READ64(*res); | |
3169 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; | |
3170 | } | |
3110ff80 | 3171 | dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
3172 | return status; |
3173 | } | |
3174 | ||
3175 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3176 | { | |
8687b63a | 3177 | __be32 *p; |
1da177e4 LT |
3178 | int status = 0; |
3179 | ||
3180 | *res = 0; | |
3181 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) | |
3182 | return -EIO; | |
3183 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { | |
3184 | READ_BUF(8); | |
3185 | READ64(*res); | |
3186 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; | |
3187 | } | |
3110ff80 | 3188 | dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
3189 | return status; |
3190 | } | |
3191 | ||
3192 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3193 | { | |
8687b63a | 3194 | __be32 *p; |
1da177e4 LT |
3195 | int status = 0; |
3196 | ||
3197 | *res = 0; | |
3198 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) | |
3199 | return -EIO; | |
3200 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { | |
3201 | READ_BUF(8); | |
3202 | READ64(*res); | |
3203 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; | |
3204 | } | |
3110ff80 | 3205 | dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
3206 | return status; |
3207 | } | |
3208 | ||
3209 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) | |
3210 | { | |
8687b63a | 3211 | __be32 *p; |
409924e4 | 3212 | int ret = 0; |
1da177e4 LT |
3213 | |
3214 | *used = 0; | |
3215 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) | |
3216 | return -EIO; | |
3217 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { | |
3218 | READ_BUF(8); | |
3219 | READ64(*used); | |
3220 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; | |
409924e4 | 3221 | ret = NFS_ATTR_FATTR_SPACE_USED; |
1da177e4 | 3222 | } |
3110ff80 | 3223 | dprintk("%s: space used=%Lu\n", __func__, |
1da177e4 | 3224 | (unsigned long long)*used); |
409924e4 | 3225 | return ret; |
1da177e4 LT |
3226 | } |
3227 | ||
3228 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) | |
3229 | { | |
8687b63a | 3230 | __be32 *p; |
1da177e4 LT |
3231 | uint64_t sec; |
3232 | uint32_t nsec; | |
3233 | ||
3234 | READ_BUF(12); | |
3235 | READ64(sec); | |
3236 | READ32(nsec); | |
3237 | time->tv_sec = (time_t)sec; | |
3238 | time->tv_nsec = (long)nsec; | |
3239 | return 0; | |
3240 | } | |
3241 | ||
3242 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3243 | { | |
3244 | int status = 0; | |
3245 | ||
3246 | time->tv_sec = 0; | |
3247 | time->tv_nsec = 0; | |
3248 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) | |
3249 | return -EIO; | |
3250 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { | |
3251 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3252 | if (status == 0) |
3253 | status = NFS_ATTR_FATTR_ATIME; | |
1da177e4 LT |
3254 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; |
3255 | } | |
3110ff80 | 3256 | dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3257 | return status; |
3258 | } | |
3259 | ||
3260 | static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3261 | { | |
3262 | int status = 0; | |
3263 | ||
3264 | time->tv_sec = 0; | |
3265 | time->tv_nsec = 0; | |
3266 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) | |
3267 | return -EIO; | |
3268 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { | |
3269 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3270 | if (status == 0) |
3271 | status = NFS_ATTR_FATTR_CTIME; | |
1da177e4 LT |
3272 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; |
3273 | } | |
3110ff80 | 3274 | dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3275 | return status; |
3276 | } | |
3277 | ||
3278 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3279 | { | |
3280 | int status = 0; | |
3281 | ||
3282 | time->tv_sec = 0; | |
3283 | time->tv_nsec = 0; | |
3284 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) | |
3285 | return -EIO; | |
3286 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { | |
3287 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3288 | if (status == 0) |
3289 | status = NFS_ATTR_FATTR_MTIME; | |
1da177e4 LT |
3290 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; |
3291 | } | |
3110ff80 | 3292 | dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3293 | return status; |
3294 | } | |
3295 | ||
8687b63a | 3296 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
1da177e4 LT |
3297 | { |
3298 | unsigned int attrwords = XDR_QUADLEN(attrlen); | |
3299 | unsigned int nwords = xdr->p - savep; | |
3300 | ||
3301 | if (unlikely(attrwords != nwords)) { | |
fe82a183 CL |
3302 | dprintk("%s: server returned incorrect attribute length: " |
3303 | "%u %c %u\n", | |
3110ff80 | 3304 | __func__, |
1da177e4 LT |
3305 | attrwords << 2, |
3306 | (attrwords < nwords) ? '<' : '>', | |
3307 | nwords << 2); | |
3308 | return -EIO; | |
3309 | } | |
3310 | return 0; | |
3311 | } | |
3312 | ||
3313 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3314 | { | |
8687b63a | 3315 | __be32 *p; |
1da177e4 LT |
3316 | |
3317 | READ_BUF(20); | |
3318 | READ32(cinfo->atomic); | |
3319 | READ64(cinfo->before); | |
3320 | READ64(cinfo->after); | |
3321 | return 0; | |
3322 | } | |
3323 | ||
3324 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) | |
3325 | { | |
8687b63a | 3326 | __be32 *p; |
1da177e4 LT |
3327 | uint32_t supp, acc; |
3328 | int status; | |
3329 | ||
3330 | status = decode_op_hdr(xdr, OP_ACCESS); | |
3331 | if (status) | |
3332 | return status; | |
3333 | READ_BUF(8); | |
3334 | READ32(supp); | |
3335 | READ32(acc); | |
3336 | access->supported = supp; | |
3337 | access->access = acc; | |
3338 | return 0; | |
3339 | } | |
3340 | ||
3341 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3342 | { | |
8687b63a | 3343 | __be32 *p; |
1da177e4 LT |
3344 | int status; |
3345 | ||
3346 | status = decode_op_hdr(xdr, OP_CLOSE); | |
c1d51931 TM |
3347 | if (status != -EIO) |
3348 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
3349 | if (status) |
3350 | return status; | |
8ae20abd TM |
3351 | READ_BUF(NFS4_STATEID_SIZE); |
3352 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3353 | return 0; |
3354 | } | |
3355 | ||
3356 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3357 | { | |
8687b63a | 3358 | __be32 *p; |
1da177e4 LT |
3359 | int status; |
3360 | ||
3361 | status = decode_op_hdr(xdr, OP_COMMIT); | |
3362 | if (status) | |
3363 | return status; | |
3364 | READ_BUF(8); | |
3365 | COPYMEM(res->verf->verifier, 8); | |
3366 | return 0; | |
3367 | } | |
3368 | ||
3369 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3370 | { | |
8687b63a | 3371 | __be32 *p; |
1da177e4 LT |
3372 | uint32_t bmlen; |
3373 | int status; | |
3374 | ||
3375 | status = decode_op_hdr(xdr, OP_CREATE); | |
3376 | if (status) | |
3377 | return status; | |
3378 | if ((status = decode_change_info(xdr, cinfo))) | |
3379 | return status; | |
3380 | READ_BUF(4); | |
3381 | READ32(bmlen); | |
3382 | READ_BUF(bmlen << 2); | |
3383 | return 0; | |
3384 | } | |
3385 | ||
3386 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) | |
3387 | { | |
8687b63a | 3388 | __be32 *savep; |
6c0195a4 | 3389 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 LT |
3390 | int status; |
3391 | ||
3392 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3393 | goto xdr_error; | |
3394 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3395 | goto xdr_error; | |
3396 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3397 | goto xdr_error; | |
3398 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) | |
3399 | goto xdr_error; | |
3400 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) | |
3401 | goto xdr_error; | |
3402 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) | |
3403 | goto xdr_error; | |
3404 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) | |
3405 | goto xdr_error; | |
3406 | status = verify_attr_len(xdr, savep, attrlen); | |
3407 | xdr_error: | |
3110ff80 | 3408 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3409 | return status; |
3410 | } | |
6c0195a4 | 3411 | |
1da177e4 LT |
3412 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) |
3413 | { | |
8687b63a | 3414 | __be32 *savep; |
6c0195a4 | 3415 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3416 | int status; |
6c0195a4 | 3417 | |
1da177e4 LT |
3418 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3419 | goto xdr_error; | |
3420 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3421 | goto xdr_error; | |
3422 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3423 | goto xdr_error; | |
3424 | ||
3425 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) | |
3426 | goto xdr_error; | |
3427 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) | |
3428 | goto xdr_error; | |
3429 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) | |
3430 | goto xdr_error; | |
3431 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) | |
3432 | goto xdr_error; | |
3433 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) | |
3434 | goto xdr_error; | |
3435 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) | |
3436 | goto xdr_error; | |
3437 | ||
3438 | status = verify_attr_len(xdr, savep, attrlen); | |
3439 | xdr_error: | |
3110ff80 | 3440 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3441 | return status; |
3442 | } | |
3443 | ||
3444 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) | |
3445 | { | |
8687b63a | 3446 | __be32 *savep; |
6c0195a4 | 3447 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3448 | int status; |
6c0195a4 | 3449 | |
1da177e4 LT |
3450 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3451 | goto xdr_error; | |
3452 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3453 | goto xdr_error; | |
3454 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3455 | goto xdr_error; | |
3456 | ||
3457 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) | |
3458 | goto xdr_error; | |
3459 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) | |
3460 | goto xdr_error; | |
3461 | ||
3462 | status = verify_attr_len(xdr, savep, attrlen); | |
3463 | xdr_error: | |
3110ff80 | 3464 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3465 | return status; |
3466 | } | |
3467 | ||
3468 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) | |
3469 | { | |
8687b63a | 3470 | __be32 *savep; |
1da177e4 LT |
3471 | uint32_t attrlen, |
3472 | bitmap[2] = {0}, | |
3473 | type; | |
bca79478 TM |
3474 | int status; |
3475 | umode_t fmode = 0; | |
99baf625 | 3476 | uint64_t fileid; |
1da177e4 | 3477 | |
f26c7a78 TM |
3478 | status = decode_op_hdr(xdr, OP_GETATTR); |
3479 | if (status < 0) | |
1da177e4 | 3480 | goto xdr_error; |
f26c7a78 TM |
3481 | |
3482 | status = decode_attr_bitmap(xdr, bitmap); | |
3483 | if (status < 0) | |
1da177e4 LT |
3484 | goto xdr_error; |
3485 | ||
f26c7a78 TM |
3486 | status = decode_attr_length(xdr, &attrlen, &savep); |
3487 | if (status < 0) | |
1da177e4 LT |
3488 | goto xdr_error; |
3489 | ||
3490 | ||
f26c7a78 TM |
3491 | status = decode_attr_type(xdr, bitmap, &type); |
3492 | if (status < 0) | |
1da177e4 | 3493 | goto xdr_error; |
409924e4 TM |
3494 | fattr->mode = 0; |
3495 | if (status != 0) { | |
3496 | fattr->mode |= nfs_type2fmt[type]; | |
3497 | fattr->valid |= status; | |
3498 | } | |
1da177e4 | 3499 | |
f26c7a78 TM |
3500 | status = decode_attr_change(xdr, bitmap, &fattr->change_attr); |
3501 | if (status < 0) | |
1da177e4 | 3502 | goto xdr_error; |
409924e4 | 3503 | fattr->valid |= status; |
f26c7a78 TM |
3504 | |
3505 | status = decode_attr_size(xdr, bitmap, &fattr->size); | |
3506 | if (status < 0) | |
1da177e4 | 3507 | goto xdr_error; |
409924e4 | 3508 | fattr->valid |= status; |
f26c7a78 TM |
3509 | |
3510 | status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); | |
3511 | if (status < 0) | |
1da177e4 | 3512 | goto xdr_error; |
409924e4 | 3513 | fattr->valid |= status; |
f26c7a78 TM |
3514 | |
3515 | status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); | |
3516 | if (status < 0) | |
1da177e4 | 3517 | goto xdr_error; |
409924e4 | 3518 | fattr->valid |= status; |
f26c7a78 TM |
3519 | |
3520 | status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, | |
7aaa0b3b | 3521 | struct nfs4_fs_locations, |
f26c7a78 TM |
3522 | fattr)); |
3523 | if (status < 0) | |
683b57b4 | 3524 | goto xdr_error; |
409924e4 | 3525 | fattr->valid |= status; |
f26c7a78 TM |
3526 | |
3527 | status = decode_attr_mode(xdr, bitmap, &fmode); | |
3528 | if (status < 0) | |
1da177e4 | 3529 | goto xdr_error; |
409924e4 TM |
3530 | if (status != 0) { |
3531 | fattr->mode |= fmode; | |
3532 | fattr->valid |= status; | |
3533 | } | |
f26c7a78 TM |
3534 | |
3535 | status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); | |
3536 | if (status < 0) | |
1da177e4 | 3537 | goto xdr_error; |
409924e4 | 3538 | fattr->valid |= status; |
f26c7a78 TM |
3539 | |
3540 | status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); | |
3541 | if (status < 0) | |
1da177e4 | 3542 | goto xdr_error; |
409924e4 | 3543 | fattr->valid |= status; |
f26c7a78 TM |
3544 | |
3545 | status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); | |
3546 | if (status < 0) | |
1da177e4 | 3547 | goto xdr_error; |
409924e4 | 3548 | fattr->valid |= status; |
f26c7a78 TM |
3549 | |
3550 | status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); | |
3551 | if (status < 0) | |
1da177e4 | 3552 | goto xdr_error; |
409924e4 | 3553 | fattr->valid |= status; |
f26c7a78 TM |
3554 | |
3555 | status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); | |
3556 | if (status < 0) | |
1da177e4 | 3557 | goto xdr_error; |
409924e4 | 3558 | fattr->valid |= status; |
f26c7a78 TM |
3559 | |
3560 | status = decode_attr_time_access(xdr, bitmap, &fattr->atime); | |
3561 | if (status < 0) | |
1da177e4 | 3562 | goto xdr_error; |
409924e4 | 3563 | fattr->valid |= status; |
f26c7a78 TM |
3564 | |
3565 | status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); | |
3566 | if (status < 0) | |
1da177e4 | 3567 | goto xdr_error; |
409924e4 | 3568 | fattr->valid |= status; |
f26c7a78 TM |
3569 | |
3570 | status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); | |
3571 | if (status < 0) | |
1da177e4 | 3572 | goto xdr_error; |
409924e4 | 3573 | fattr->valid |= status; |
f26c7a78 TM |
3574 | |
3575 | status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); | |
3576 | if (status < 0) | |
99baf625 | 3577 | goto xdr_error; |
409924e4 | 3578 | if (status != 0 && !(fattr->valid & status)) { |
99baf625 | 3579 | fattr->fileid = fileid; |
409924e4 TM |
3580 | fattr->valid |= status; |
3581 | } | |
f26c7a78 TM |
3582 | |
3583 | status = verify_attr_len(xdr, savep, attrlen); | |
1da177e4 | 3584 | xdr_error: |
3110ff80 | 3585 | dprintk("%s: xdr returned %d\n", __func__, -status); |
1da177e4 LT |
3586 | return status; |
3587 | } | |
3588 | ||
3589 | ||
3590 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) | |
3591 | { | |
8687b63a | 3592 | __be32 *savep; |
1da177e4 LT |
3593 | uint32_t attrlen, bitmap[2]; |
3594 | int status; | |
3595 | ||
3596 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3597 | goto xdr_error; | |
3598 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3599 | goto xdr_error; | |
3600 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3601 | goto xdr_error; | |
3602 | ||
3603 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ | |
3604 | ||
3605 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) | |
3606 | goto xdr_error; | |
3607 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) | |
3608 | goto xdr_error; | |
3609 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) | |
3610 | goto xdr_error; | |
3611 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; | |
3612 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) | |
3613 | goto xdr_error; | |
3614 | fsinfo->wtpref = fsinfo->wtmax; | |
3615 | ||
3616 | status = verify_attr_len(xdr, savep, attrlen); | |
3617 | xdr_error: | |
3110ff80 | 3618 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3619 | return status; |
3620 | } | |
3621 | ||
3622 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) | |
3623 | { | |
8687b63a | 3624 | __be32 *p; |
1da177e4 LT |
3625 | uint32_t len; |
3626 | int status; | |
3627 | ||
9936781d TM |
3628 | /* Zero handle first to allow comparisons */ |
3629 | memset(fh, 0, sizeof(*fh)); | |
3630 | ||
1da177e4 LT |
3631 | status = decode_op_hdr(xdr, OP_GETFH); |
3632 | if (status) | |
3633 | return status; | |
1da177e4 LT |
3634 | |
3635 | READ_BUF(4); | |
3636 | READ32(len); | |
3637 | if (len > NFS4_FHSIZE) | |
3638 | return -EIO; | |
3639 | fh->size = len; | |
3640 | READ_BUF(len); | |
3641 | COPYMEM(fh->data, len); | |
3642 | return 0; | |
3643 | } | |
3644 | ||
3645 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3646 | { | |
3647 | int status; | |
6c0195a4 | 3648 | |
1da177e4 LT |
3649 | status = decode_op_hdr(xdr, OP_LINK); |
3650 | if (status) | |
3651 | return status; | |
3652 | return decode_change_info(xdr, cinfo); | |
3653 | } | |
3654 | ||
3655 | /* | |
3656 | * We create the owner, so we know a proper owner.id length is 4. | |
3657 | */ | |
911d1aaf | 3658 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
1da177e4 | 3659 | { |
911d1aaf | 3660 | uint64_t offset, length, clientid; |
8687b63a | 3661 | __be32 *p; |
911d1aaf | 3662 | uint32_t namelen, type; |
1da177e4 LT |
3663 | |
3664 | READ_BUF(32); | |
911d1aaf TM |
3665 | READ64(offset); |
3666 | READ64(length); | |
3667 | READ32(type); | |
3668 | if (fl != NULL) { | |
3669 | fl->fl_start = (loff_t)offset; | |
3670 | fl->fl_end = fl->fl_start + (loff_t)length - 1; | |
3671 | if (length == ~(uint64_t)0) | |
3672 | fl->fl_end = OFFSET_MAX; | |
3673 | fl->fl_type = F_WRLCK; | |
3674 | if (type & 1) | |
3675 | fl->fl_type = F_RDLCK; | |
3676 | fl->fl_pid = 0; | |
3677 | } | |
3678 | READ64(clientid); | |
1da177e4 LT |
3679 | READ32(namelen); |
3680 | READ_BUF(namelen); | |
1da177e4 LT |
3681 | return -NFS4ERR_DENIED; |
3682 | } | |
3683 | ||
911d1aaf | 3684 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
1da177e4 | 3685 | { |
8687b63a | 3686 | __be32 *p; |
1da177e4 LT |
3687 | int status; |
3688 | ||
3689 | status = decode_op_hdr(xdr, OP_LOCK); | |
c1d51931 TM |
3690 | if (status == -EIO) |
3691 | goto out; | |
1da177e4 | 3692 | if (status == 0) { |
8ae20abd TM |
3693 | READ_BUF(NFS4_STATEID_SIZE); |
3694 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3695 | } else if (status == -NFS4ERR_DENIED) |
c1d51931 TM |
3696 | status = decode_lock_denied(xdr, NULL); |
3697 | if (res->open_seqid != NULL) | |
3698 | nfs_increment_open_seqid(status, res->open_seqid); | |
3699 | nfs_increment_lock_seqid(status, res->lock_seqid); | |
3700 | out: | |
1da177e4 LT |
3701 | return status; |
3702 | } | |
3703 | ||
911d1aaf | 3704 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
1da177e4 LT |
3705 | { |
3706 | int status; | |
3707 | status = decode_op_hdr(xdr, OP_LOCKT); | |
3708 | if (status == -NFS4ERR_DENIED) | |
911d1aaf | 3709 | return decode_lock_denied(xdr, res->denied); |
1da177e4 LT |
3710 | return status; |
3711 | } | |
3712 | ||
911d1aaf | 3713 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
1da177e4 | 3714 | { |
8687b63a | 3715 | __be32 *p; |
1da177e4 LT |
3716 | int status; |
3717 | ||
3718 | status = decode_op_hdr(xdr, OP_LOCKU); | |
c1d51931 TM |
3719 | if (status != -EIO) |
3720 | nfs_increment_lock_seqid(status, res->seqid); | |
1da177e4 | 3721 | if (status == 0) { |
8ae20abd TM |
3722 | READ_BUF(NFS4_STATEID_SIZE); |
3723 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3724 | } |
3725 | return status; | |
3726 | } | |
3727 | ||
3728 | static int decode_lookup(struct xdr_stream *xdr) | |
3729 | { | |
3730 | return decode_op_hdr(xdr, OP_LOOKUP); | |
3731 | } | |
3732 | ||
3733 | /* This is too sick! */ | |
3734 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) | |
3735 | { | |
05d564fe | 3736 | __be32 *p; |
1da177e4 LT |
3737 | uint32_t limit_type, nblocks, blocksize; |
3738 | ||
3739 | READ_BUF(12); | |
3740 | READ32(limit_type); | |
3741 | switch (limit_type) { | |
05d564fe AA |
3742 | case 1: |
3743 | READ64(*maxsize); | |
3744 | break; | |
3745 | case 2: | |
3746 | READ32(nblocks); | |
3747 | READ32(blocksize); | |
3748 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; | |
1da177e4 LT |
3749 | } |
3750 | return 0; | |
3751 | } | |
3752 | ||
3753 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) | |
3754 | { | |
05d564fe AA |
3755 | __be32 *p; |
3756 | uint32_t delegation_type; | |
1da177e4 LT |
3757 | |
3758 | READ_BUF(4); | |
3759 | READ32(delegation_type); | |
3760 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { | |
3761 | res->delegation_type = 0; | |
3762 | return 0; | |
3763 | } | |
8ae20abd TM |
3764 | READ_BUF(NFS4_STATEID_SIZE+4); |
3765 | COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3766 | READ32(res->do_recall); |
05d564fe | 3767 | |
1da177e4 | 3768 | switch (delegation_type) { |
05d564fe AA |
3769 | case NFS4_OPEN_DELEGATE_READ: |
3770 | res->delegation_type = FMODE_READ; | |
3771 | break; | |
3772 | case NFS4_OPEN_DELEGATE_WRITE: | |
3773 | res->delegation_type = FMODE_WRITE|FMODE_READ; | |
3774 | if (decode_space_limit(xdr, &res->maxsize) < 0) | |
1da177e4 LT |
3775 | return -EIO; |
3776 | } | |
7539bbab | 3777 | return decode_ace(xdr, NULL, res->server->nfs_client); |
1da177e4 LT |
3778 | } |
3779 | ||
3780 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) | |
3781 | { | |
05d564fe | 3782 | __be32 *p; |
aa53ed54 | 3783 | uint32_t savewords, bmlen, i; |
05d564fe | 3784 | int status; |
1da177e4 | 3785 | |
05d564fe | 3786 | status = decode_op_hdr(xdr, OP_OPEN); |
c1d51931 TM |
3787 | if (status != -EIO) |
3788 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3789 | if (status) |
3790 | return status; | |
3791 | READ_BUF(NFS4_STATEID_SIZE); | |
3792 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3793 | |
05d564fe | 3794 | decode_change_info(xdr, &res->cinfo); |
1da177e4 | 3795 | |
05d564fe AA |
3796 | READ_BUF(8); |
3797 | READ32(res->rflags); | |
3798 | READ32(bmlen); | |
3799 | if (bmlen > 10) | |
3800 | goto xdr_error; | |
1da177e4 | 3801 | |
05d564fe | 3802 | READ_BUF(bmlen << 2); |
aa53ed54 JL |
3803 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
3804 | for (i = 0; i < savewords; ++i) | |
3805 | READ32(res->attrset[i]); | |
3806 | for (; i < NFS4_BITMAP_SIZE; i++) | |
3807 | res->attrset[i] = 0; | |
3808 | ||
1da177e4 LT |
3809 | return decode_delegation(xdr, res); |
3810 | xdr_error: | |
3110ff80 | 3811 | dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); |
1da177e4 LT |
3812 | return -EIO; |
3813 | } | |
3814 | ||
3815 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) | |
3816 | { | |
05d564fe | 3817 | __be32 *p; |
1da177e4 LT |
3818 | int status; |
3819 | ||
05d564fe | 3820 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); |
c1d51931 TM |
3821 | if (status != -EIO) |
3822 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3823 | if (status) |
3824 | return status; | |
3825 | READ_BUF(NFS4_STATEID_SIZE); | |
3826 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
3827 | return 0; | |
1da177e4 LT |
3828 | } |
3829 | ||
3830 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3831 | { | |
8687b63a | 3832 | __be32 *p; |
1da177e4 LT |
3833 | int status; |
3834 | ||
3835 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); | |
c1d51931 TM |
3836 | if (status != -EIO) |
3837 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
3838 | if (status) |
3839 | return status; | |
8ae20abd TM |
3840 | READ_BUF(NFS4_STATEID_SIZE); |
3841 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3842 | return 0; |
3843 | } | |
3844 | ||
3845 | static int decode_putfh(struct xdr_stream *xdr) | |
3846 | { | |
3847 | return decode_op_hdr(xdr, OP_PUTFH); | |
3848 | } | |
3849 | ||
3850 | static int decode_putrootfh(struct xdr_stream *xdr) | |
3851 | { | |
3852 | return decode_op_hdr(xdr, OP_PUTROOTFH); | |
3853 | } | |
3854 | ||
3855 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) | |
3856 | { | |
3857 | struct kvec *iov = req->rq_rcv_buf.head; | |
8687b63a | 3858 | __be32 *p; |
1da177e4 LT |
3859 | uint32_t count, eof, recvd, hdrlen; |
3860 | int status; | |
3861 | ||
3862 | status = decode_op_hdr(xdr, OP_READ); | |
3863 | if (status) | |
3864 | return status; | |
3865 | READ_BUF(8); | |
3866 | READ32(eof); | |
3867 | READ32(count); | |
3868 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; | |
3869 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3870 | if (count > recvd) { | |
fe82a183 | 3871 | dprintk("NFS: server cheating in read reply: " |
1da177e4 LT |
3872 | "count %u > recvd %u\n", count, recvd); |
3873 | count = recvd; | |
3874 | eof = 0; | |
3875 | } | |
3876 | xdr_read_pages(xdr, count); | |
3877 | res->eof = eof; | |
3878 | res->count = count; | |
3879 | return 0; | |
3880 | } | |
3881 | ||
3882 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) | |
3883 | { | |
3884 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3885 | struct page *page = *rcvbuf->pages; | |
3886 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3887 | size_t hdrlen; |
3888 | u32 recvd, pglen = rcvbuf->page_len; | |
8687b63a | 3889 | __be32 *end, *entry, *p, *kaddr; |
7bda2cdf | 3890 | unsigned int nr = 0; |
bcecff77 | 3891 | int status; |
1da177e4 LT |
3892 | |
3893 | status = decode_op_hdr(xdr, OP_READDIR); | |
3894 | if (status) | |
3895 | return status; | |
3896 | READ_BUF(8); | |
3897 | COPYMEM(readdir->verifier.data, 8); | |
44109241 FI |
3898 | dprintk("%s: verifier = %08x:%08x\n", |
3899 | __func__, | |
eadf4598 TM |
3900 | ((u32 *)readdir->verifier.data)[0], |
3901 | ((u32 *)readdir->verifier.data)[1]); | |
3902 | ||
1da177e4 LT |
3903 | |
3904 | hdrlen = (char *) p - (char *) iov->iov_base; | |
3905 | recvd = rcvbuf->len - hdrlen; | |
3906 | if (pglen > recvd) | |
3907 | pglen = recvd; | |
3908 | xdr_read_pages(xdr, pglen); | |
3909 | ||
3910 | BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); | |
8687b63a | 3911 | kaddr = p = kmap_atomic(page, KM_USER0); |
e8896495 | 3912 | end = p + ((pglen + readdir->pgbase) >> 2); |
1da177e4 | 3913 | entry = p; |
7bda2cdf JL |
3914 | |
3915 | /* Make sure the packet actually has a value_follows and EOF entry */ | |
3916 | if ((entry + 1) > end) | |
3917 | goto short_pkt; | |
3918 | ||
3919 | for (; *p++; nr++) { | |
bcecff77 | 3920 | u32 len, attrlen, xlen; |
e8896495 | 3921 | if (end - p < 3) |
1da177e4 | 3922 | goto short_pkt; |
eadf4598 | 3923 | dprintk("cookie = %Lu, ", *((unsigned long long *)p)); |
1da177e4 LT |
3924 | p += 2; /* cookie */ |
3925 | len = ntohl(*p++); /* filename length */ | |
3926 | if (len > NFS4_MAXNAMLEN) { | |
fe82a183 CL |
3927 | dprintk("NFS: giant filename in readdir (len 0x%x)\n", |
3928 | len); | |
1da177e4 LT |
3929 | goto err_unmap; |
3930 | } | |
e8896495 DH |
3931 | xlen = XDR_QUADLEN(len); |
3932 | if (end - p < xlen + 1) | |
1da177e4 | 3933 | goto short_pkt; |
e8896495 DH |
3934 | dprintk("filename = %*s\n", len, (char *)p); |
3935 | p += xlen; | |
1da177e4 | 3936 | len = ntohl(*p++); /* bitmap length */ |
e8896495 | 3937 | if (end - p < len + 1) |
1da177e4 | 3938 | goto short_pkt; |
e8896495 | 3939 | p += len; |
1da177e4 | 3940 | attrlen = XDR_QUADLEN(ntohl(*p++)); |
e8896495 | 3941 | if (end - p < attrlen + 2) |
1da177e4 | 3942 | goto short_pkt; |
e8896495 | 3943 | p += attrlen; /* attributes */ |
1da177e4 LT |
3944 | entry = p; |
3945 | } | |
7bda2cdf JL |
3946 | /* |
3947 | * Apparently some server sends responses that are a valid size, but | |
3948 | * contain no entries, and have value_follows==0 and EOF==0. For | |
3949 | * those, just set the EOF marker. | |
3950 | */ | |
3951 | if (!nr && entry[1] == 0) { | |
3952 | dprintk("NFS: readdir reply truncated!\n"); | |
3953 | entry[1] = 1; | |
3954 | } | |
6c0195a4 | 3955 | out: |
1da177e4 LT |
3956 | kunmap_atomic(kaddr, KM_USER0); |
3957 | return 0; | |
3958 | short_pkt: | |
7bda2cdf JL |
3959 | /* |
3960 | * When we get a short packet there are 2 possibilities. We can | |
3961 | * return an error, or fix up the response to look like a valid | |
3962 | * response and return what we have so far. If there are no | |
3963 | * entries and the packet was short, then return -EIO. If there | |
3964 | * are valid entries in the response, return them and pretend that | |
3965 | * the call was successful, but incomplete. The caller can retry the | |
3966 | * readdir starting at the last cookie. | |
3967 | */ | |
3110ff80 | 3968 | dprintk("%s: short packet at entry %d\n", __func__, nr); |
1da177e4 | 3969 | entry[0] = entry[1] = 0; |
7bda2cdf JL |
3970 | if (nr) |
3971 | goto out; | |
1da177e4 LT |
3972 | err_unmap: |
3973 | kunmap_atomic(kaddr, KM_USER0); | |
3974 | return -errno_NFSERR_IO; | |
3975 | } | |
3976 | ||
3977 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) | |
3978 | { | |
3979 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3980 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3981 | size_t hdrlen; |
3982 | u32 len, recvd; | |
8687b63a | 3983 | __be32 *p; |
1da177e4 LT |
3984 | char *kaddr; |
3985 | int status; | |
3986 | ||
3987 | status = decode_op_hdr(xdr, OP_READLINK); | |
3988 | if (status) | |
3989 | return status; | |
3990 | ||
3991 | /* Convert length of symlink */ | |
3992 | READ_BUF(4); | |
3993 | READ32(len); | |
3994 | if (len >= rcvbuf->page_len || len <= 0) { | |
fe82a183 | 3995 | dprintk("nfs: server returned giant symlink!\n"); |
1da177e4 LT |
3996 | return -ENAMETOOLONG; |
3997 | } | |
3998 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; | |
3999 | recvd = req->rq_rcv_buf.len - hdrlen; | |
4000 | if (recvd < len) { | |
fe82a183 | 4001 | dprintk("NFS: server cheating in readlink reply: " |
1da177e4 LT |
4002 | "count %u > recvd %u\n", len, recvd); |
4003 | return -EIO; | |
4004 | } | |
4005 | xdr_read_pages(xdr, len); | |
4006 | /* | |
4007 | * The XDR encode routine has set things up so that | |
4008 | * the link text will be copied directly into the | |
4009 | * buffer. We just have to do overflow-checking, | |
4010 | * and and null-terminate the text (the VFS expects | |
4011 | * null-termination). | |
4012 | */ | |
4013 | kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); | |
4014 | kaddr[len+rcvbuf->page_base] = '\0'; | |
4015 | kunmap_atomic(kaddr, KM_USER0); | |
4016 | return 0; | |
4017 | } | |
4018 | ||
4019 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
4020 | { | |
4021 | int status; | |
4022 | ||
4023 | status = decode_op_hdr(xdr, OP_REMOVE); | |
4024 | if (status) | |
4025 | goto out; | |
4026 | status = decode_change_info(xdr, cinfo); | |
4027 | out: | |
4028 | return status; | |
4029 | } | |
4030 | ||
4031 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, | |
4032 | struct nfs4_change_info *new_cinfo) | |
4033 | { | |
4034 | int status; | |
4035 | ||
4036 | status = decode_op_hdr(xdr, OP_RENAME); | |
4037 | if (status) | |
4038 | goto out; | |
4039 | if ((status = decode_change_info(xdr, old_cinfo))) | |
4040 | goto out; | |
4041 | status = decode_change_info(xdr, new_cinfo); | |
4042 | out: | |
4043 | return status; | |
4044 | } | |
4045 | ||
4046 | static int decode_renew(struct xdr_stream *xdr) | |
4047 | { | |
4048 | return decode_op_hdr(xdr, OP_RENEW); | |
4049 | } | |
4050 | ||
56ae19f3 TM |
4051 | static int |
4052 | decode_restorefh(struct xdr_stream *xdr) | |
4053 | { | |
4054 | return decode_op_hdr(xdr, OP_RESTOREFH); | |
4055 | } | |
4056 | ||
029d105e BF |
4057 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
4058 | size_t *acl_len) | |
4059 | { | |
8687b63a | 4060 | __be32 *savep; |
029d105e BF |
4061 | uint32_t attrlen, |
4062 | bitmap[2] = {0}; | |
4063 | struct kvec *iov = req->rq_rcv_buf.head; | |
4064 | int status; | |
4065 | ||
4066 | *acl_len = 0; | |
4067 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
4068 | goto out; | |
4069 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
4070 | goto out; | |
4071 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
4072 | goto out; | |
4073 | ||
4074 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) | |
4075 | return -EIO; | |
4076 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { | |
bcecff77 CL |
4077 | size_t hdrlen; |
4078 | u32 recvd; | |
029d105e BF |
4079 | |
4080 | /* We ignore &savep and don't do consistency checks on | |
4081 | * the attr length. Let userspace figure it out.... */ | |
4082 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; | |
4083 | recvd = req->rq_rcv_buf.len - hdrlen; | |
4084 | if (attrlen > recvd) { | |
fe82a183 | 4085 | dprintk("NFS: server cheating in getattr" |
029d105e BF |
4086 | " acl reply: attrlen %u > recvd %u\n", |
4087 | attrlen, recvd); | |
4088 | return -EINVAL; | |
4089 | } | |
c04871e6 | 4090 | xdr_read_pages(xdr, attrlen); |
029d105e | 4091 | *acl_len = attrlen; |
8c233cf9 BF |
4092 | } else |
4093 | status = -EOPNOTSUPP; | |
029d105e BF |
4094 | |
4095 | out: | |
4096 | return status; | |
4097 | } | |
4098 | ||
1da177e4 LT |
4099 | static int |
4100 | decode_savefh(struct xdr_stream *xdr) | |
4101 | { | |
4102 | return decode_op_hdr(xdr, OP_SAVEFH); | |
4103 | } | |
4104 | ||
9e9ecc03 | 4105 | static int decode_setattr(struct xdr_stream *xdr) |
1da177e4 | 4106 | { |
8687b63a | 4107 | __be32 *p; |
1da177e4 LT |
4108 | uint32_t bmlen; |
4109 | int status; | |
4110 | ||
1da177e4 LT |
4111 | status = decode_op_hdr(xdr, OP_SETATTR); |
4112 | if (status) | |
4113 | return status; | |
4114 | READ_BUF(4); | |
4115 | READ32(bmlen); | |
4116 | READ_BUF(bmlen << 2); | |
4117 | return 0; | |
4118 | } | |
4119 | ||
adfa6f98 | 4120 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) |
1da177e4 | 4121 | { |
8687b63a | 4122 | __be32 *p; |
1da177e4 LT |
4123 | uint32_t opnum; |
4124 | int32_t nfserr; | |
4125 | ||
4126 | READ_BUF(8); | |
4127 | READ32(opnum); | |
4128 | if (opnum != OP_SETCLIENTID) { | |
fe82a183 | 4129 | dprintk("nfs: decode_setclientid: Server returned operation" |
6c0195a4 | 4130 | " %d\n", opnum); |
1da177e4 LT |
4131 | return -EIO; |
4132 | } | |
4133 | READ32(nfserr); | |
4134 | if (nfserr == NFS_OK) { | |
8ae20abd | 4135 | READ_BUF(8 + NFS4_VERIFIER_SIZE); |
1da177e4 | 4136 | READ64(clp->cl_clientid); |
8ae20abd | 4137 | COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
4138 | } else if (nfserr == NFSERR_CLID_INUSE) { |
4139 | uint32_t len; | |
4140 | ||
4141 | /* skip netid string */ | |
4142 | READ_BUF(4); | |
4143 | READ32(len); | |
4144 | READ_BUF(len); | |
4145 | ||
4146 | /* skip uaddr string */ | |
4147 | READ_BUF(4); | |
4148 | READ32(len); | |
4149 | READ_BUF(len); | |
4150 | return -NFSERR_CLID_INUSE; | |
4151 | } else | |
856dff3d | 4152 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
4153 | |
4154 | return 0; | |
4155 | } | |
4156 | ||
4157 | static int decode_setclientid_confirm(struct xdr_stream *xdr) | |
4158 | { | |
4159 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); | |
4160 | } | |
4161 | ||
4162 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) | |
4163 | { | |
8687b63a | 4164 | __be32 *p; |
1da177e4 LT |
4165 | int status; |
4166 | ||
4167 | status = decode_op_hdr(xdr, OP_WRITE); | |
4168 | if (status) | |
4169 | return status; | |
4170 | ||
4171 | READ_BUF(16); | |
4172 | READ32(res->count); | |
4173 | READ32(res->verf->committed); | |
4174 | COPYMEM(res->verf->verifier, 8); | |
4175 | return 0; | |
4176 | } | |
4177 | ||
4178 | static int decode_delegreturn(struct xdr_stream *xdr) | |
4179 | { | |
4180 | return decode_op_hdr(xdr, OP_DELEGRETURN); | |
4181 | } | |
4182 | ||
99fe60d0 BH |
4183 | #if defined(CONFIG_NFS_V4_1) |
4184 | static int decode_exchange_id(struct xdr_stream *xdr, | |
4185 | struct nfs41_exchange_id_res *res) | |
4186 | { | |
4187 | __be32 *p; | |
4188 | uint32_t dummy; | |
4189 | int status; | |
4190 | struct nfs_client *clp = res->client; | |
4191 | ||
4192 | status = decode_op_hdr(xdr, OP_EXCHANGE_ID); | |
4193 | if (status) | |
4194 | return status; | |
4195 | ||
4196 | READ_BUF(8); | |
4197 | READ64(clp->cl_ex_clid); | |
4198 | READ_BUF(12); | |
4199 | READ32(clp->cl_seqid); | |
4200 | READ32(clp->cl_exchange_flags); | |
4201 | ||
4202 | /* We ask for SP4_NONE */ | |
4203 | READ32(dummy); | |
4204 | if (dummy != SP4_NONE) | |
4205 | return -EIO; | |
4206 | ||
4207 | /* Throw away minor_id */ | |
4208 | READ_BUF(8); | |
4209 | ||
4210 | /* Throw away Major id */ | |
4211 | READ_BUF(4); | |
4212 | READ32(dummy); | |
4213 | READ_BUF(dummy); | |
4214 | ||
4215 | /* Throw away server_scope */ | |
4216 | READ_BUF(4); | |
4217 | READ32(dummy); | |
4218 | READ_BUF(dummy); | |
4219 | ||
4220 | /* Throw away Implementation id array */ | |
4221 | READ_BUF(4); | |
4222 | READ32(dummy); | |
4223 | READ_BUF(dummy); | |
4224 | ||
4225 | return 0; | |
4226 | } | |
fc931582 AA |
4227 | |
4228 | static int decode_chan_attrs(struct xdr_stream *xdr, | |
4229 | struct nfs4_channel_attrs *attrs) | |
4230 | { | |
4231 | __be32 *p; | |
4232 | u32 nr_attrs; | |
4233 | ||
4234 | READ_BUF(28); | |
4235 | READ32(attrs->headerpadsz); | |
4236 | READ32(attrs->max_rqst_sz); | |
4237 | READ32(attrs->max_resp_sz); | |
4238 | READ32(attrs->max_resp_sz_cached); | |
4239 | READ32(attrs->max_ops); | |
4240 | READ32(attrs->max_reqs); | |
4241 | READ32(nr_attrs); | |
4242 | if (unlikely(nr_attrs > 1)) { | |
4243 | printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", | |
4244 | __func__, nr_attrs); | |
4245 | return -EINVAL; | |
4246 | } | |
4247 | if (nr_attrs == 1) | |
4248 | READ_BUF(4); /* skip rdma_attrs */ | |
4249 | return 0; | |
4250 | } | |
4251 | ||
4252 | static int decode_create_session(struct xdr_stream *xdr, | |
4253 | struct nfs41_create_session_res *res) | |
4254 | { | |
4255 | __be32 *p; | |
4256 | int status; | |
4257 | struct nfs_client *clp = res->client; | |
4258 | struct nfs4_session *session = clp->cl_session; | |
4259 | ||
4260 | status = decode_op_hdr(xdr, OP_CREATE_SESSION); | |
4261 | ||
4262 | if (status) | |
4263 | return status; | |
4264 | ||
4265 | /* sessionid */ | |
4266 | READ_BUF(NFS4_MAX_SESSIONID_LEN); | |
4267 | COPYMEM(&session->sess_id, NFS4_MAX_SESSIONID_LEN); | |
4268 | ||
4269 | /* seqid, flags */ | |
4270 | READ_BUF(8); | |
4271 | READ32(clp->cl_seqid); | |
4272 | READ32(session->flags); | |
4273 | ||
4274 | /* Channel attributes */ | |
4275 | status = decode_chan_attrs(xdr, &session->fc_attrs); | |
4276 | if (!status) | |
4277 | status = decode_chan_attrs(xdr, &session->bc_attrs); | |
4278 | return status; | |
4279 | } | |
0f3e66c6 AA |
4280 | |
4281 | static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) | |
4282 | { | |
4283 | return decode_op_hdr(xdr, OP_DESTROY_SESSION); | |
4284 | } | |
99fe60d0 BH |
4285 | #endif /* CONFIG_NFS_V4_1 */ |
4286 | ||
9b7b9fcc AA |
4287 | static int decode_sequence(struct xdr_stream *xdr, |
4288 | struct nfs4_sequence_res *res, | |
4289 | struct rpc_rqst *rqstp) | |
4290 | { | |
4291 | #if defined(CONFIG_NFS_V4_1) | |
fc01cea9 AA |
4292 | struct nfs4_slot *slot; |
4293 | struct nfs4_sessionid id; | |
4294 | u32 dummy; | |
4295 | int status; | |
4296 | __be32 *p; | |
4297 | ||
9b7b9fcc AA |
4298 | if (!res->sr_session) |
4299 | return 0; | |
4300 | ||
fc01cea9 AA |
4301 | status = decode_op_hdr(xdr, OP_SEQUENCE); |
4302 | if (status) | |
4303 | goto out_err; | |
9b7b9fcc | 4304 | |
fc01cea9 AA |
4305 | /* |
4306 | * If the server returns different values for sessionID, slotID or | |
4307 | * sequence number, the server is looney tunes. | |
4308 | */ | |
4309 | status = -ESERVERFAULT; | |
4310 | ||
4311 | slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; | |
4312 | READ_BUF(NFS4_MAX_SESSIONID_LEN + 20); | |
4313 | COPYMEM(id.data, NFS4_MAX_SESSIONID_LEN); | |
4314 | if (memcmp(id.data, res->sr_session->sess_id.data, | |
4315 | NFS4_MAX_SESSIONID_LEN)) { | |
4316 | dprintk("%s Invalid session id\n", __func__); | |
4317 | goto out_err; | |
4318 | } | |
4319 | /* seqid */ | |
4320 | READ32(dummy); | |
4321 | if (dummy != slot->seq_nr) { | |
4322 | dprintk("%s Invalid sequence number\n", __func__); | |
4323 | goto out_err; | |
4324 | } | |
4325 | /* slot id */ | |
4326 | READ32(dummy); | |
4327 | if (dummy != res->sr_slotid) { | |
4328 | dprintk("%s Invalid slot id\n", __func__); | |
4329 | goto out_err; | |
4330 | } | |
4331 | /* highest slot id - currently not processed */ | |
4332 | READ32(dummy); | |
4333 | /* target highest slot id - currently not processed */ | |
4334 | READ32(dummy); | |
4335 | /* result flags - currently not processed */ | |
4336 | READ32(dummy); | |
4337 | status = 0; | |
4338 | out_err: | |
4339 | res->sr_status = status; | |
4340 | return status; | |
4341 | #else /* CONFIG_NFS_V4_1 */ | |
9b7b9fcc | 4342 | return 0; |
fc01cea9 | 4343 | #endif /* CONFIG_NFS_V4_1 */ |
9b7b9fcc AA |
4344 | } |
4345 | ||
49c2559e BH |
4346 | /* |
4347 | * END OF "GENERIC" DECODE ROUTINES. | |
4348 | */ | |
4349 | ||
1da177e4 LT |
4350 | /* |
4351 | * Decode OPEN_DOWNGRADE response | |
4352 | */ | |
8687b63a | 4353 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4354 | { |
05d564fe AA |
4355 | struct xdr_stream xdr; |
4356 | struct compound_hdr hdr; | |
4357 | int status; | |
4358 | ||
4359 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4360 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4361 | if (status) |
4362 | goto out; | |
4363 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4364 | if (status) |
4365 | goto out; | |
4366 | status = decode_putfh(&xdr); | |
4367 | if (status) | |
4368 | goto out; | |
4369 | status = decode_open_downgrade(&xdr, res); | |
516a6af6 TM |
4370 | if (status != 0) |
4371 | goto out; | |
4372 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 4373 | out: |
05d564fe | 4374 | return status; |
1da177e4 LT |
4375 | } |
4376 | ||
1da177e4 LT |
4377 | /* |
4378 | * Decode ACCESS response | |
4379 | */ | |
8687b63a | 4380 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) |
1da177e4 LT |
4381 | { |
4382 | struct xdr_stream xdr; | |
4383 | struct compound_hdr hdr; | |
4384 | int status; | |
6c0195a4 | 4385 | |
1da177e4 | 4386 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4387 | status = decode_compound_hdr(&xdr, &hdr); |
4388 | if (status) | |
4389 | goto out; | |
4390 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4391 | if (status) | |
1da177e4 | 4392 | goto out; |
76b32999 TM |
4393 | status = decode_putfh(&xdr); |
4394 | if (status != 0) | |
4395 | goto out; | |
4396 | status = decode_access(&xdr, res); | |
4397 | if (status != 0) | |
4398 | goto out; | |
4399 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4400 | out: |
4401 | return status; | |
4402 | } | |
4403 | ||
4404 | /* | |
4405 | * Decode LOOKUP response | |
4406 | */ | |
8687b63a | 4407 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
4408 | { |
4409 | struct xdr_stream xdr; | |
4410 | struct compound_hdr hdr; | |
4411 | int status; | |
6c0195a4 | 4412 | |
1da177e4 | 4413 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4414 | status = decode_compound_hdr(&xdr, &hdr); |
4415 | if (status) | |
4416 | goto out; | |
4417 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4418 | if (status) | |
1da177e4 LT |
4419 | goto out; |
4420 | if ((status = decode_putfh(&xdr)) != 0) | |
4421 | goto out; | |
4422 | if ((status = decode_lookup(&xdr)) != 0) | |
4423 | goto out; | |
4424 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
4425 | goto out; | |
4426 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4427 | out: | |
4428 | return status; | |
4429 | } | |
4430 | ||
4431 | /* | |
4432 | * Decode LOOKUP_ROOT response | |
4433 | */ | |
8687b63a | 4434 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
4435 | { |
4436 | struct xdr_stream xdr; | |
4437 | struct compound_hdr hdr; | |
4438 | int status; | |
6c0195a4 | 4439 | |
1da177e4 | 4440 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4441 | status = decode_compound_hdr(&xdr, &hdr); |
4442 | if (status) | |
4443 | goto out; | |
4444 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4445 | if (status) | |
1da177e4 LT |
4446 | goto out; |
4447 | if ((status = decode_putrootfh(&xdr)) != 0) | |
4448 | goto out; | |
4449 | if ((status = decode_getfh(&xdr, res->fh)) == 0) | |
4450 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4451 | out: | |
4452 | return status; | |
4453 | } | |
4454 | ||
4455 | /* | |
4456 | * Decode REMOVE response | |
4457 | */ | |
4fdc17b2 | 4458 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) |
1da177e4 LT |
4459 | { |
4460 | struct xdr_stream xdr; | |
4461 | struct compound_hdr hdr; | |
4462 | int status; | |
6c0195a4 | 4463 | |
1da177e4 | 4464 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4465 | status = decode_compound_hdr(&xdr, &hdr); |
4466 | if (status) | |
4467 | goto out; | |
4468 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4469 | if (status) | |
1da177e4 | 4470 | goto out; |
16e42959 TM |
4471 | if ((status = decode_putfh(&xdr)) != 0) |
4472 | goto out; | |
4473 | if ((status = decode_remove(&xdr, &res->cinfo)) != 0) | |
4474 | goto out; | |
4fdc17b2 | 4475 | decode_getfattr(&xdr, &res->dir_attr, res->server); |
1da177e4 LT |
4476 | out: |
4477 | return status; | |
4478 | } | |
4479 | ||
4480 | /* | |
4481 | * Decode RENAME response | |
4482 | */ | |
8687b63a | 4483 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) |
1da177e4 LT |
4484 | { |
4485 | struct xdr_stream xdr; | |
4486 | struct compound_hdr hdr; | |
4487 | int status; | |
6c0195a4 | 4488 | |
1da177e4 | 4489 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4490 | status = decode_compound_hdr(&xdr, &hdr); |
4491 | if (status) | |
4492 | goto out; | |
4493 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4494 | if (status) | |
1da177e4 LT |
4495 | goto out; |
4496 | if ((status = decode_putfh(&xdr)) != 0) | |
4497 | goto out; | |
4498 | if ((status = decode_savefh(&xdr)) != 0) | |
4499 | goto out; | |
4500 | if ((status = decode_putfh(&xdr)) != 0) | |
4501 | goto out; | |
6caf2c82 TM |
4502 | if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) |
4503 | goto out; | |
4504 | /* Current FH is target directory */ | |
4505 | if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) | |
4506 | goto out; | |
4507 | if ((status = decode_restorefh(&xdr)) != 0) | |
4508 | goto out; | |
4509 | decode_getfattr(&xdr, res->old_fattr, res->server); | |
1da177e4 LT |
4510 | out: |
4511 | return status; | |
4512 | } | |
4513 | ||
4514 | /* | |
4515 | * Decode LINK response | |
4516 | */ | |
8687b63a | 4517 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) |
1da177e4 LT |
4518 | { |
4519 | struct xdr_stream xdr; | |
4520 | struct compound_hdr hdr; | |
4521 | int status; | |
6c0195a4 | 4522 | |
1da177e4 | 4523 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4524 | status = decode_compound_hdr(&xdr, &hdr); |
4525 | if (status) | |
4526 | goto out; | |
4527 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4528 | if (status) | |
1da177e4 LT |
4529 | goto out; |
4530 | if ((status = decode_putfh(&xdr)) != 0) | |
4531 | goto out; | |
4532 | if ((status = decode_savefh(&xdr)) != 0) | |
4533 | goto out; | |
4534 | if ((status = decode_putfh(&xdr)) != 0) | |
4535 | goto out; | |
91ba2eee TM |
4536 | if ((status = decode_link(&xdr, &res->cinfo)) != 0) |
4537 | goto out; | |
4538 | /* | |
4539 | * Note order: OP_LINK leaves the directory as the current | |
4540 | * filehandle. | |
4541 | */ | |
4542 | if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) | |
4543 | goto out; | |
4544 | if ((status = decode_restorefh(&xdr)) != 0) | |
4545 | goto out; | |
4546 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4547 | out: |
4548 | return status; | |
4549 | } | |
4550 | ||
4551 | /* | |
4552 | * Decode CREATE response | |
4553 | */ | |
8687b63a | 4554 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4555 | { |
4556 | struct xdr_stream xdr; | |
4557 | struct compound_hdr hdr; | |
4558 | int status; | |
6c0195a4 | 4559 | |
1da177e4 | 4560 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4561 | status = decode_compound_hdr(&xdr, &hdr); |
4562 | if (status) | |
4563 | goto out; | |
4564 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4565 | if (status) | |
1da177e4 LT |
4566 | goto out; |
4567 | if ((status = decode_putfh(&xdr)) != 0) | |
4568 | goto out; | |
56ae19f3 TM |
4569 | if ((status = decode_savefh(&xdr)) != 0) |
4570 | goto out; | |
1da177e4 LT |
4571 | if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) |
4572 | goto out; | |
4573 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
4574 | goto out; | |
56ae19f3 TM |
4575 | if (decode_getfattr(&xdr, res->fattr, res->server) != 0) |
4576 | goto out; | |
4577 | if ((status = decode_restorefh(&xdr)) != 0) | |
4578 | goto out; | |
4579 | decode_getfattr(&xdr, res->dir_fattr, res->server); | |
1da177e4 LT |
4580 | out: |
4581 | return status; | |
4582 | } | |
4583 | ||
4584 | /* | |
4585 | * Decode SYMLINK response | |
4586 | */ | |
8687b63a | 4587 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4588 | { |
4589 | return nfs4_xdr_dec_create(rqstp, p, res); | |
4590 | } | |
4591 | ||
4592 | /* | |
4593 | * Decode GETATTR response | |
4594 | */ | |
8687b63a | 4595 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) |
1da177e4 LT |
4596 | { |
4597 | struct xdr_stream xdr; | |
4598 | struct compound_hdr hdr; | |
4599 | int status; | |
6c0195a4 | 4600 | |
1da177e4 LT |
4601 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
4602 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4603 | if (status) |
4604 | goto out; | |
4605 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4606 | if (status) |
4607 | goto out; | |
4608 | status = decode_putfh(&xdr); | |
4609 | if (status) | |
4610 | goto out; | |
4611 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4612 | out: | |
4613 | return status; | |
1da177e4 LT |
4614 | } |
4615 | ||
23ec6965 BF |
4616 | /* |
4617 | * Encode an SETACL request | |
4618 | */ | |
4619 | static int | |
8687b63a | 4620 | nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) |
23ec6965 | 4621 | { |
05d564fe AA |
4622 | struct xdr_stream xdr; |
4623 | struct compound_hdr hdr = { | |
66cc0429 | 4624 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe AA |
4625 | }; |
4626 | int status; | |
4627 | ||
4628 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 4629 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 4630 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 | 4631 | encode_putfh(&xdr, args->fh, &hdr); |
d017931c | 4632 | status = encode_setacl(&xdr, args, &hdr); |
d017931c | 4633 | encode_nops(&hdr); |
05d564fe | 4634 | return status; |
23ec6965 | 4635 | } |
05d564fe | 4636 | |
23ec6965 BF |
4637 | /* |
4638 | * Decode SETACL response | |
4639 | */ | |
4640 | static int | |
73c403a9 BH |
4641 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, |
4642 | struct nfs_setaclres *res) | |
23ec6965 BF |
4643 | { |
4644 | struct xdr_stream xdr; | |
4645 | struct compound_hdr hdr; | |
4646 | int status; | |
4647 | ||
4648 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4649 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4650 | if (status) |
4651 | goto out; | |
4652 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
23ec6965 BF |
4653 | if (status) |
4654 | goto out; | |
4655 | status = decode_putfh(&xdr); | |
4656 | if (status) | |
4657 | goto out; | |
9e9ecc03 | 4658 | status = decode_setattr(&xdr); |
23ec6965 BF |
4659 | out: |
4660 | return status; | |
4661 | } | |
1da177e4 | 4662 | |
029d105e BF |
4663 | /* |
4664 | * Decode GETACL response | |
4665 | */ | |
4666 | static int | |
663c79b3 BH |
4667 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, |
4668 | struct nfs_getaclres *res) | |
029d105e BF |
4669 | { |
4670 | struct xdr_stream xdr; | |
4671 | struct compound_hdr hdr; | |
4672 | int status; | |
4673 | ||
4674 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4675 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4676 | if (status) |
4677 | goto out; | |
4678 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
029d105e BF |
4679 | if (status) |
4680 | goto out; | |
4681 | status = decode_putfh(&xdr); | |
4682 | if (status) | |
4683 | goto out; | |
663c79b3 | 4684 | status = decode_getacl(&xdr, rqstp, &res->acl_len); |
029d105e BF |
4685 | |
4686 | out: | |
4687 | return status; | |
4688 | } | |
4689 | ||
1da177e4 LT |
4690 | /* |
4691 | * Decode CLOSE response | |
4692 | */ | |
8687b63a | 4693 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4694 | { |
05d564fe AA |
4695 | struct xdr_stream xdr; |
4696 | struct compound_hdr hdr; | |
4697 | int status; | |
4698 | ||
4699 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4700 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4701 | if (status) |
4702 | goto out; | |
4703 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4704 | if (status) |
4705 | goto out; | |
4706 | status = decode_putfh(&xdr); | |
4707 | if (status) | |
4708 | goto out; | |
4709 | status = decode_close(&xdr, res); | |
516a6af6 TM |
4710 | if (status != 0) |
4711 | goto out; | |
4712 | /* | |
4713 | * Note: Server may do delete on close for this file | |
4714 | * in which case the getattr call will fail with | |
4715 | * an ESTALE error. Shouldn't be a problem, | |
4716 | * though, since fattr->valid will remain unset. | |
4717 | */ | |
4718 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 4719 | out: |
05d564fe | 4720 | return status; |
1da177e4 LT |
4721 | } |
4722 | ||
4723 | /* | |
4724 | * Decode OPEN response | |
4725 | */ | |
8687b63a | 4726 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4727 | { |
05d564fe AA |
4728 | struct xdr_stream xdr; |
4729 | struct compound_hdr hdr; | |
4730 | int status; | |
4731 | ||
4732 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4733 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4734 | if (status) |
4735 | goto out; | |
4736 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4737 | if (status) |
4738 | goto out; | |
4739 | status = decode_putfh(&xdr); | |
4740 | if (status) | |
4741 | goto out; | |
4742 | status = decode_savefh(&xdr); | |
4743 | if (status) | |
4744 | goto out; | |
4745 | status = decode_open(&xdr, res); | |
56ae19f3 TM |
4746 | if (status) |
4747 | goto out; | |
9936781d | 4748 | if (decode_getfh(&xdr, &res->fh) != 0) |
1da177e4 | 4749 | goto out; |
56ae19f3 TM |
4750 | if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) |
4751 | goto out; | |
365c8f58 | 4752 | if (decode_restorefh(&xdr) != 0) |
56ae19f3 TM |
4753 | goto out; |
4754 | decode_getfattr(&xdr, res->dir_attr, res->server); | |
1da177e4 | 4755 | out: |
05d564fe | 4756 | return status; |
1da177e4 LT |
4757 | } |
4758 | ||
4759 | /* | |
4760 | * Decode OPEN_CONFIRM response | |
4761 | */ | |
8687b63a | 4762 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) |
1da177e4 | 4763 | { |
05d564fe AA |
4764 | struct xdr_stream xdr; |
4765 | struct compound_hdr hdr; | |
4766 | int status; | |
4767 | ||
4768 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4769 | status = decode_compound_hdr(&xdr, &hdr); | |
4770 | if (status) | |
4771 | goto out; | |
4772 | status = decode_putfh(&xdr); | |
4773 | if (status) | |
4774 | goto out; | |
4775 | status = decode_open_confirm(&xdr, res); | |
1da177e4 | 4776 | out: |
05d564fe | 4777 | return status; |
1da177e4 LT |
4778 | } |
4779 | ||
4780 | /* | |
4781 | * Decode OPEN response | |
4782 | */ | |
8687b63a | 4783 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4784 | { |
05d564fe AA |
4785 | struct xdr_stream xdr; |
4786 | struct compound_hdr hdr; | |
4787 | int status; | |
4788 | ||
4789 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4790 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4791 | if (status) |
4792 | goto out; | |
4793 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4794 | if (status) |
4795 | goto out; | |
4796 | status = decode_putfh(&xdr); | |
4797 | if (status) | |
4798 | goto out; | |
4799 | status = decode_open(&xdr, res); | |
4800 | if (status) | |
4801 | goto out; | |
864472e9 | 4802 | decode_getfattr(&xdr, res->f_attr, res->server); |
1da177e4 | 4803 | out: |
05d564fe | 4804 | return status; |
1da177e4 LT |
4805 | } |
4806 | ||
4807 | /* | |
4808 | * Decode SETATTR response | |
4809 | */ | |
8687b63a | 4810 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) |
1da177e4 | 4811 | { |
05d564fe AA |
4812 | struct xdr_stream xdr; |
4813 | struct compound_hdr hdr; | |
4814 | int status; | |
4815 | ||
4816 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4817 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4818 | if (status) |
4819 | goto out; | |
4820 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4821 | if (status) |
4822 | goto out; | |
4823 | status = decode_putfh(&xdr); | |
4824 | if (status) | |
4825 | goto out; | |
9e9ecc03 | 4826 | status = decode_setattr(&xdr); |
05d564fe AA |
4827 | if (status) |
4828 | goto out; | |
78f945f8 | 4829 | decode_getfattr(&xdr, res->fattr, res->server); |
1da177e4 | 4830 | out: |
05d564fe | 4831 | return status; |
1da177e4 LT |
4832 | } |
4833 | ||
4834 | /* | |
4835 | * Decode LOCK response | |
4836 | */ | |
8687b63a | 4837 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) |
1da177e4 LT |
4838 | { |
4839 | struct xdr_stream xdr; | |
4840 | struct compound_hdr hdr; | |
4841 | int status; | |
4842 | ||
4843 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4844 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4845 | if (status) |
4846 | goto out; | |
4847 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4848 | if (status) |
4849 | goto out; | |
4850 | status = decode_putfh(&xdr); | |
4851 | if (status) | |
4852 | goto out; | |
4853 | status = decode_lock(&xdr, res); | |
4854 | out: | |
4855 | return status; | |
4856 | } | |
4857 | ||
4858 | /* | |
4859 | * Decode LOCKT response | |
4860 | */ | |
8687b63a | 4861 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) |
1da177e4 LT |
4862 | { |
4863 | struct xdr_stream xdr; | |
4864 | struct compound_hdr hdr; | |
4865 | int status; | |
4866 | ||
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; | |
4877 | status = decode_lockt(&xdr, res); | |
4878 | out: | |
4879 | return status; | |
4880 | } | |
4881 | ||
4882 | /* | |
4883 | * Decode LOCKU response | |
4884 | */ | |
8687b63a | 4885 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) |
1da177e4 LT |
4886 | { |
4887 | struct xdr_stream xdr; | |
4888 | struct compound_hdr hdr; | |
4889 | int status; | |
4890 | ||
4891 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4892 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4893 | if (status) |
4894 | goto out; | |
4895 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4896 | if (status) |
4897 | goto out; | |
4898 | status = decode_putfh(&xdr); | |
4899 | if (status) | |
4900 | goto out; | |
4901 | status = decode_locku(&xdr, res); | |
4902 | out: | |
4903 | return status; | |
4904 | } | |
4905 | ||
4906 | /* | |
4907 | * Decode READLINK response | |
4908 | */ | |
f50c7000 BH |
4909 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, |
4910 | struct nfs4_readlink_res *res) | |
1da177e4 LT |
4911 | { |
4912 | struct xdr_stream xdr; | |
4913 | struct compound_hdr hdr; | |
4914 | int status; | |
4915 | ||
4916 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4917 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4918 | if (status) |
4919 | goto out; | |
4920 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4921 | if (status) |
4922 | goto out; | |
4923 | status = decode_putfh(&xdr); | |
4924 | if (status) | |
4925 | goto out; | |
4926 | status = decode_readlink(&xdr, rqstp); | |
4927 | out: | |
4928 | return status; | |
4929 | } | |
4930 | ||
4931 | /* | |
4932 | * Decode READDIR response | |
4933 | */ | |
8687b63a | 4934 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) |
1da177e4 LT |
4935 | { |
4936 | struct xdr_stream xdr; | |
4937 | struct compound_hdr hdr; | |
4938 | int status; | |
4939 | ||
4940 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4941 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4942 | if (status) |
4943 | goto out; | |
4944 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4945 | if (status) |
4946 | goto out; | |
4947 | status = decode_putfh(&xdr); | |
4948 | if (status) | |
4949 | goto out; | |
4950 | status = decode_readdir(&xdr, rqstp, res); | |
4951 | out: | |
4952 | return status; | |
4953 | } | |
4954 | ||
4955 | /* | |
4956 | * Decode Read response | |
4957 | */ | |
8687b63a | 4958 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) |
1da177e4 LT |
4959 | { |
4960 | struct xdr_stream xdr; | |
4961 | struct compound_hdr hdr; | |
4962 | int status; | |
4963 | ||
4964 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4965 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4966 | if (status) |
4967 | goto out; | |
4968 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4969 | if (status) |
4970 | goto out; | |
4971 | status = decode_putfh(&xdr); | |
4972 | if (status) | |
4973 | goto out; | |
4974 | status = decode_read(&xdr, rqstp, res); | |
4975 | if (!status) | |
4976 | status = res->count; | |
4977 | out: | |
4978 | return status; | |
4979 | } | |
4980 | ||
4981 | /* | |
4982 | * Decode WRITE response | |
4983 | */ | |
8687b63a | 4984 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4985 | { |
4986 | struct xdr_stream xdr; | |
4987 | struct compound_hdr hdr; | |
4988 | int status; | |
4989 | ||
4990 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4991 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4992 | if (status) |
4993 | goto out; | |
4994 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4995 | if (status) |
4996 | goto out; | |
4997 | status = decode_putfh(&xdr); | |
4998 | if (status) | |
4999 | goto out; | |
5000 | status = decode_write(&xdr, res); | |
4f9838c7 TM |
5001 | if (status) |
5002 | goto out; | |
5003 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
5004 | if (!status) |
5005 | status = res->count; | |
5006 | out: | |
5007 | return status; | |
5008 | } | |
5009 | ||
5010 | /* | |
5011 | * Decode COMMIT response | |
5012 | */ | |
8687b63a | 5013 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
5014 | { |
5015 | struct xdr_stream xdr; | |
5016 | struct compound_hdr hdr; | |
5017 | int status; | |
5018 | ||
5019 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5020 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5021 | if (status) |
5022 | goto out; | |
5023 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5024 | if (status) |
5025 | goto out; | |
5026 | status = decode_putfh(&xdr); | |
5027 | if (status) | |
5028 | goto out; | |
5029 | status = decode_commit(&xdr, res); | |
4f9838c7 TM |
5030 | if (status) |
5031 | goto out; | |
5032 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
5033 | out: |
5034 | return status; | |
5035 | } | |
5036 | ||
5037 | /* | |
5038 | * FSINFO request | |
5039 | */ | |
3dda5e43 BH |
5040 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, |
5041 | struct nfs4_fsinfo_res *res) | |
1da177e4 LT |
5042 | { |
5043 | struct xdr_stream xdr; | |
5044 | struct compound_hdr hdr; | |
5045 | int status; | |
5046 | ||
5047 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5048 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5049 | if (!status) |
5050 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5051 | if (!status) |
5052 | status = decode_putfh(&xdr); | |
5053 | if (!status) | |
3dda5e43 | 5054 | status = decode_fsinfo(&xdr, res->fsinfo); |
1da177e4 LT |
5055 | return status; |
5056 | } | |
5057 | ||
5058 | /* | |
5059 | * PATHCONF request | |
5060 | */ | |
d45b2989 BH |
5061 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, |
5062 | struct nfs4_pathconf_res *res) | |
1da177e4 LT |
5063 | { |
5064 | struct xdr_stream xdr; | |
5065 | struct compound_hdr hdr; | |
5066 | int status; | |
5067 | ||
5068 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5069 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5070 | if (!status) |
5071 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5072 | if (!status) |
5073 | status = decode_putfh(&xdr); | |
5074 | if (!status) | |
d45b2989 | 5075 | status = decode_pathconf(&xdr, res->pathconf); |
1da177e4 LT |
5076 | return status; |
5077 | } | |
5078 | ||
5079 | /* | |
5080 | * STATFS request | |
5081 | */ | |
24ad148a BH |
5082 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, |
5083 | struct nfs4_statfs_res *res) | |
1da177e4 LT |
5084 | { |
5085 | struct xdr_stream xdr; | |
5086 | struct compound_hdr hdr; | |
5087 | int status; | |
5088 | ||
5089 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5090 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5091 | if (!status) |
5092 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5093 | if (!status) |
5094 | status = decode_putfh(&xdr); | |
5095 | if (!status) | |
24ad148a | 5096 | status = decode_statfs(&xdr, res->fsstat); |
1da177e4 LT |
5097 | return status; |
5098 | } | |
5099 | ||
5100 | /* | |
5101 | * GETATTR_BITMAP request | |
5102 | */ | |
8687b63a | 5103 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) |
1da177e4 LT |
5104 | { |
5105 | struct xdr_stream xdr; | |
5106 | struct compound_hdr hdr; | |
5107 | int status; | |
5108 | ||
5109 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
9b7b9fcc AA |
5110 | status = decode_compound_hdr(&xdr, &hdr); |
5111 | if (status) | |
5112 | goto out; | |
5113 | status = decode_sequence(&xdr, &res->seq_res, req); | |
5114 | if (status) | |
1da177e4 LT |
5115 | goto out; |
5116 | if ((status = decode_putfh(&xdr)) != 0) | |
5117 | goto out; | |
5118 | status = decode_server_caps(&xdr, res); | |
5119 | out: | |
5120 | return status; | |
5121 | } | |
5122 | ||
5123 | /* | |
5124 | * Decode RENEW response | |
5125 | */ | |
8687b63a | 5126 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) |
1da177e4 LT |
5127 | { |
5128 | struct xdr_stream xdr; | |
5129 | struct compound_hdr hdr; | |
5130 | int status; | |
5131 | ||
5132 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5133 | status = decode_compound_hdr(&xdr, &hdr); | |
5134 | if (!status) | |
5135 | status = decode_renew(&xdr); | |
5136 | return status; | |
5137 | } | |
5138 | ||
5139 | /* | |
5140 | * a SETCLIENTID request | |
5141 | */ | |
8687b63a | 5142 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, |
adfa6f98 | 5143 | struct nfs_client *clp) |
1da177e4 LT |
5144 | { |
5145 | struct xdr_stream xdr; | |
5146 | struct compound_hdr hdr; | |
5147 | int status; | |
5148 | ||
5149 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5150 | status = decode_compound_hdr(&xdr, &hdr); | |
5151 | if (!status) | |
5152 | status = decode_setclientid(&xdr, clp); | |
1da177e4 LT |
5153 | return status; |
5154 | } | |
5155 | ||
5156 | /* | |
5157 | * a SETCLIENTID_CONFIRM request | |
5158 | */ | |
8687b63a | 5159 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
5160 | { |
5161 | struct xdr_stream xdr; | |
5162 | struct compound_hdr hdr; | |
5163 | int status; | |
5164 | ||
5165 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5166 | status = decode_compound_hdr(&xdr, &hdr); | |
5167 | if (!status) | |
5168 | status = decode_setclientid_confirm(&xdr); | |
5169 | if (!status) | |
5170 | status = decode_putrootfh(&xdr); | |
5171 | if (!status) | |
5172 | status = decode_fsinfo(&xdr, fsinfo); | |
1da177e4 LT |
5173 | return status; |
5174 | } | |
5175 | ||
5176 | /* | |
5177 | * DELEGRETURN request | |
5178 | */ | |
8687b63a | 5179 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) |
1da177e4 LT |
5180 | { |
5181 | struct xdr_stream xdr; | |
5182 | struct compound_hdr hdr; | |
5183 | int status; | |
5184 | ||
5185 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5186 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5187 | if (status) |
5188 | goto out; | |
5189 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
5190 | if (status) | |
fa178f29 TM |
5191 | goto out; |
5192 | status = decode_putfh(&xdr); | |
5193 | if (status != 0) | |
5194 | goto out; | |
5195 | status = decode_delegreturn(&xdr); | |
5196 | decode_getfattr(&xdr, res->fattr, res->server); | |
5197 | out: | |
1da177e4 LT |
5198 | return status; |
5199 | } | |
5200 | ||
683b57b4 TM |
5201 | /* |
5202 | * FS_LOCATIONS request | |
5203 | */ | |
22958463 BH |
5204 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, |
5205 | struct nfs4_fs_locations_res *res) | |
683b57b4 TM |
5206 | { |
5207 | struct xdr_stream xdr; | |
5208 | struct compound_hdr hdr; | |
5209 | int status; | |
5210 | ||
5211 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5212 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5213 | if (status) |
5214 | goto out; | |
5215 | status = decode_sequence(&xdr, &res->seq_res, req); | |
5216 | if (status) | |
683b57b4 TM |
5217 | goto out; |
5218 | if ((status = decode_putfh(&xdr)) != 0) | |
5219 | goto out; | |
5220 | if ((status = decode_lookup(&xdr)) != 0) | |
5221 | goto out; | |
5222 | xdr_enter_page(&xdr, PAGE_SIZE); | |
22958463 BH |
5223 | status = decode_getfattr(&xdr, &res->fs_locations->fattr, |
5224 | res->fs_locations->server); | |
683b57b4 TM |
5225 | out: |
5226 | return status; | |
5227 | } | |
5228 | ||
99fe60d0 BH |
5229 | #if defined(CONFIG_NFS_V4_1) |
5230 | /* | |
5231 | * EXCHANGE_ID request | |
5232 | */ | |
5233 | static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, | |
5234 | void *res) | |
5235 | { | |
5236 | struct xdr_stream xdr; | |
5237 | struct compound_hdr hdr; | |
5238 | int status; | |
5239 | ||
5240 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5241 | status = decode_compound_hdr(&xdr, &hdr); | |
5242 | if (!status) | |
5243 | status = decode_exchange_id(&xdr, res); | |
5244 | return status; | |
5245 | } | |
2050f0cc | 5246 | |
fc931582 AA |
5247 | /* |
5248 | * a CREATE_SESSION request | |
5249 | */ | |
5250 | static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, | |
5251 | struct nfs41_create_session_res *res) | |
5252 | { | |
5253 | struct xdr_stream xdr; | |
5254 | struct compound_hdr hdr; | |
5255 | int status; | |
5256 | ||
5257 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5258 | status = decode_compound_hdr(&xdr, &hdr); | |
5259 | if (!status) | |
5260 | status = decode_create_session(&xdr, res); | |
5261 | return status; | |
5262 | } | |
5263 | ||
0f3e66c6 AA |
5264 | /* |
5265 | * a DESTROY_SESSION request | |
5266 | */ | |
5267 | static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, | |
5268 | void *dummy) | |
5269 | { | |
5270 | struct xdr_stream xdr; | |
5271 | struct compound_hdr hdr; | |
5272 | int status; | |
5273 | ||
5274 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5275 | status = decode_compound_hdr(&xdr, &hdr); | |
5276 | if (!status) | |
5277 | status = decode_destroy_session(&xdr, dummy); | |
5278 | return status; | |
5279 | } | |
5280 | ||
fc01cea9 AA |
5281 | /* |
5282 | * a SEQUENCE request | |
5283 | */ | |
5284 | static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, | |
5285 | struct nfs4_sequence_res *res) | |
5286 | { | |
5287 | struct xdr_stream xdr; | |
5288 | struct compound_hdr hdr; | |
5289 | int status; | |
5290 | ||
5291 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5292 | status = decode_compound_hdr(&xdr, &hdr); | |
5293 | if (!status) | |
5294 | status = decode_sequence(&xdr, res, rqstp); | |
5295 | return status; | |
5296 | } | |
5297 | ||
2050f0cc AA |
5298 | /* |
5299 | * a GET_LEASE_TIME request | |
5300 | */ | |
5301 | static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, | |
5302 | struct nfs4_get_lease_time_res *res) | |
5303 | { | |
5304 | struct xdr_stream xdr; | |
5305 | struct compound_hdr hdr; | |
5306 | int status; | |
5307 | ||
5308 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5309 | status = decode_compound_hdr(&xdr, &hdr); | |
5310 | if (!status) | |
5311 | status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); | |
5312 | if (!status) | |
5313 | status = decode_putrootfh(&xdr); | |
5314 | if (!status) | |
5315 | status = decode_fsinfo(&xdr, res->lr_fsinfo); | |
5316 | return status; | |
5317 | } | |
99fe60d0 BH |
5318 | #endif /* CONFIG_NFS_V4_1 */ |
5319 | ||
0dbb4c67 | 5320 | __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) |
1da177e4 LT |
5321 | { |
5322 | uint32_t bitmap[2] = {0}; | |
5323 | uint32_t len; | |
5324 | ||
5325 | if (!*p++) { | |
5326 | if (!*p) | |
5327 | return ERR_PTR(-EAGAIN); | |
5328 | entry->eof = 1; | |
5329 | return ERR_PTR(-EBADCOOKIE); | |
5330 | } | |
5331 | ||
5332 | entry->prev_cookie = entry->cookie; | |
5333 | p = xdr_decode_hyper(p, &entry->cookie); | |
5334 | entry->len = ntohl(*p++); | |
5335 | entry->name = (const char *) p; | |
5336 | p += XDR_QUADLEN(entry->len); | |
5337 | ||
5338 | /* | |
5339 | * In case the server doesn't return an inode number, | |
5340 | * we fake one here. (We don't use inode number 0, | |
5341 | * since glibc seems to choke on it...) | |
5342 | */ | |
5343 | entry->ino = 1; | |
5344 | ||
5345 | len = ntohl(*p++); /* bitmap length */ | |
5346 | if (len-- > 0) { | |
5347 | bitmap[0] = ntohl(*p++); | |
5348 | if (len-- > 0) { | |
5349 | bitmap[1] = ntohl(*p++); | |
5350 | p += len; | |
5351 | } | |
5352 | } | |
5353 | len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ | |
5354 | if (len > 0) { | |
97d312d0 MN |
5355 | if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { |
5356 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; | |
5357 | /* Ignore the return value of rdattr_error for now */ | |
5358 | p++; | |
5359 | len--; | |
5360 | } | |
1da177e4 LT |
5361 | if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) |
5362 | xdr_decode_hyper(p, &entry->ino); | |
5363 | else if (bitmap[0] == FATTR4_WORD0_FILEID) | |
5364 | xdr_decode_hyper(p, &entry->ino); | |
5365 | p += len; | |
5366 | } | |
5367 | ||
5368 | entry->eof = !p[0] && p[1]; | |
5369 | return p; | |
5370 | } | |
5371 | ||
5372 | /* | |
5373 | * We need to translate between nfs status return values and | |
5374 | * the local errno values which may not be the same. | |
5375 | */ | |
5376 | static struct { | |
5377 | int stat; | |
5378 | int errno; | |
5379 | } nfs_errtbl[] = { | |
5380 | { NFS4_OK, 0 }, | |
856dff3d BH |
5381 | { NFS4ERR_PERM, -EPERM }, |
5382 | { NFS4ERR_NOENT, -ENOENT }, | |
5383 | { NFS4ERR_IO, -errno_NFSERR_IO}, | |
5384 | { NFS4ERR_NXIO, -ENXIO }, | |
5385 | { NFS4ERR_ACCESS, -EACCES }, | |
5386 | { NFS4ERR_EXIST, -EEXIST }, | |
5387 | { NFS4ERR_XDEV, -EXDEV }, | |
5388 | { NFS4ERR_NOTDIR, -ENOTDIR }, | |
5389 | { NFS4ERR_ISDIR, -EISDIR }, | |
5390 | { NFS4ERR_INVAL, -EINVAL }, | |
5391 | { NFS4ERR_FBIG, -EFBIG }, | |
5392 | { NFS4ERR_NOSPC, -ENOSPC }, | |
5393 | { NFS4ERR_ROFS, -EROFS }, | |
5394 | { NFS4ERR_MLINK, -EMLINK }, | |
5395 | { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, | |
5396 | { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, | |
5397 | { NFS4ERR_DQUOT, -EDQUOT }, | |
5398 | { NFS4ERR_STALE, -ESTALE }, | |
5399 | { NFS4ERR_BADHANDLE, -EBADHANDLE }, | |
5400 | { NFS4ERR_BADOWNER, -EINVAL }, | |
5401 | { NFS4ERR_BADNAME, -EINVAL }, | |
5402 | { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, | |
5403 | { NFS4ERR_NOTSUPP, -ENOTSUPP }, | |
5404 | { NFS4ERR_TOOSMALL, -ETOOSMALL }, | |
5405 | { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, | |
5406 | { NFS4ERR_BADTYPE, -EBADTYPE }, | |
5407 | { NFS4ERR_LOCKED, -EAGAIN }, | |
5408 | { NFS4ERR_RESOURCE, -EREMOTEIO }, | |
5409 | { NFS4ERR_SYMLINK, -ELOOP }, | |
5410 | { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, | |
5411 | { NFS4ERR_DEADLOCK, -EDEADLK }, | |
5412 | { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs | |
1da177e4 LT |
5413 | * to be handled by a |
5414 | * middle-layer. | |
5415 | */ | |
856dff3d | 5416 | { -1, -EIO } |
1da177e4 LT |
5417 | }; |
5418 | ||
5419 | /* | |
5420 | * Convert an NFS error code to a local one. | |
5421 | * This one is used jointly by NFSv2 and NFSv3. | |
5422 | */ | |
5423 | static int | |
0a8ea437 | 5424 | nfs4_stat_to_errno(int stat) |
1da177e4 LT |
5425 | { |
5426 | int i; | |
5427 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { | |
5428 | if (nfs_errtbl[i].stat == stat) | |
5429 | return nfs_errtbl[i].errno; | |
5430 | } | |
5431 | if (stat <= 10000 || stat > 10100) { | |
5432 | /* The server is looney tunes. */ | |
856dff3d | 5433 | return -ESERVERFAULT; |
1da177e4 LT |
5434 | } |
5435 | /* If we cannot translate the error, the recovery routines should | |
5436 | * handle it. | |
5437 | * Note: remaining NFSv4 error codes have values > 10000, so should | |
5438 | * not conflict with native Linux error codes. | |
5439 | */ | |
856dff3d | 5440 | return -stat; |
1da177e4 LT |
5441 | } |
5442 | ||
1da177e4 LT |
5443 | #define PROC(proc, argtype, restype) \ |
5444 | [NFSPROC4_CLNT_##proc] = { \ | |
5445 | .p_proc = NFSPROC4_COMPOUND, \ | |
5446 | .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ | |
5447 | .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ | |
2bea90d4 CL |
5448 | .p_arglen = NFS4_##argtype##_sz, \ |
5449 | .p_replen = NFS4_##restype##_sz, \ | |
cc0175c1 CL |
5450 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
5451 | .p_name = #proc, \ | |
05d564fe | 5452 | } |
1da177e4 LT |
5453 | |
5454 | struct rpc_procinfo nfs4_procedures[] = { | |
5455 | PROC(READ, enc_read, dec_read), | |
5456 | PROC(WRITE, enc_write, dec_write), | |
5457 | PROC(COMMIT, enc_commit, dec_commit), | |
5458 | PROC(OPEN, enc_open, dec_open), | |
5459 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), | |
5460 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), | |
5461 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), | |
5462 | PROC(CLOSE, enc_close, dec_close), | |
5463 | PROC(SETATTR, enc_setattr, dec_setattr), | |
5464 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), | |
5465 | PROC(RENEW, enc_renew, dec_renew), | |
5466 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), | |
5467 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), | |
5468 | PROC(LOCK, enc_lock, dec_lock), | |
5469 | PROC(LOCKT, enc_lockt, dec_lockt), | |
5470 | PROC(LOCKU, enc_locku, dec_locku), | |
5471 | PROC(ACCESS, enc_access, dec_access), | |
5472 | PROC(GETATTR, enc_getattr, dec_getattr), | |
5473 | PROC(LOOKUP, enc_lookup, dec_lookup), | |
5474 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), | |
5475 | PROC(REMOVE, enc_remove, dec_remove), | |
5476 | PROC(RENAME, enc_rename, dec_rename), | |
5477 | PROC(LINK, enc_link, dec_link), | |
5478 | PROC(SYMLINK, enc_symlink, dec_symlink), | |
5479 | PROC(CREATE, enc_create, dec_create), | |
5480 | PROC(PATHCONF, enc_pathconf, dec_pathconf), | |
5481 | PROC(STATFS, enc_statfs, dec_statfs), | |
5482 | PROC(READLINK, enc_readlink, dec_readlink), | |
5483 | PROC(READDIR, enc_readdir, dec_readdir), | |
5484 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), | |
5485 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), | |
029d105e | 5486 | PROC(GETACL, enc_getacl, dec_getacl), |
23ec6965 | 5487 | PROC(SETACL, enc_setacl, dec_setacl), |
683b57b4 | 5488 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), |
99fe60d0 BH |
5489 | #if defined(CONFIG_NFS_V4_1) |
5490 | PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), | |
fc931582 | 5491 | PROC(CREATE_SESSION, enc_create_session, dec_create_session), |
0f3e66c6 | 5492 | PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), |
fc01cea9 | 5493 | PROC(SEQUENCE, enc_sequence, dec_sequence), |
2050f0cc | 5494 | PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), |
99fe60d0 | 5495 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 LT |
5496 | }; |
5497 | ||
5498 | struct rpc_version nfs_version4 = { | |
5499 | .number = 4, | |
e8c96f8c | 5500 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
1da177e4 LT |
5501 | .procs = nfs4_procedures |
5502 | }; | |
5503 | ||
5504 | /* | |
5505 | * Local variables: | |
5506 | * c-basic-offset: 8 | |
5507 | * End: | |
5508 | */ |