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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> | |
1da177e4 LT |
41 | #include <linux/errno.h> |
42 | #include <linux/string.h> | |
43 | #include <linux/in.h> | |
44 | #include <linux/pagemap.h> | |
45 | #include <linux/proc_fs.h> | |
46 | #include <linux/kdev_t.h> | |
47 | #include <linux/sunrpc/clnt.h> | |
2449ea2e | 48 | #include <linux/sunrpc/msg_prot.h> |
1da177e4 LT |
49 | #include <linux/nfs.h> |
50 | #include <linux/nfs4.h> | |
51 | #include <linux/nfs_fs.h> | |
52 | #include <linux/nfs_idmap.h> | |
4ce79717 | 53 | #include "nfs4_fs.h" |
4882ef72 | 54 | #include "internal.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) | |
4882ef72 | 138 | #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_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) |
daccbded | 205 | #define encode_lockowner_maxsz (7) |
9104a55d TM |
206 | #define encode_lock_maxsz (op_encode_hdr_maxsz + \ |
207 | 7 + \ | |
daccbded TM |
208 | 1 + encode_stateid_maxsz + 1 + \ |
209 | encode_lockowner_maxsz) | |
9104a55d TM |
210 | #define decode_lock_denied_maxsz \ |
211 | (8 + decode_lockowner_maxsz) | |
212 | #define decode_lock_maxsz (op_decode_hdr_maxsz + \ | |
213 | decode_lock_denied_maxsz) | |
daccbded TM |
214 | #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ |
215 | encode_lockowner_maxsz) | |
9104a55d TM |
216 | #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ |
217 | decode_lock_denied_maxsz) | |
218 | #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ | |
219 | encode_stateid_maxsz + \ | |
220 | 4) | |
221 | #define decode_locku_maxsz (op_decode_hdr_maxsz + \ | |
222 | decode_stateid_maxsz) | |
d3c7b7cc TM |
223 | #define encode_release_lockowner_maxsz \ |
224 | (op_encode_hdr_maxsz + \ | |
225 | encode_lockowner_maxsz) | |
226 | #define decode_release_lockowner_maxsz \ | |
227 | (op_decode_hdr_maxsz) | |
9104a55d TM |
228 | #define encode_access_maxsz (op_encode_hdr_maxsz + 1) |
229 | #define decode_access_maxsz (op_decode_hdr_maxsz + 2) | |
1da177e4 LT |
230 | #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ |
231 | 1 + nfs4_name_maxsz + \ | |
94a6d753 | 232 | 1 + \ |
96928206 | 233 | nfs4_fattr_maxsz) |
1da177e4 LT |
234 | #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) |
235 | #define encode_create_maxsz (op_encode_hdr_maxsz + \ | |
9104a55d TM |
236 | 1 + 2 + nfs4_name_maxsz + \ |
237 | encode_attrs_maxsz) | |
2cebf828 TM |
238 | #define decode_create_maxsz (op_decode_hdr_maxsz + \ |
239 | decode_change_info_maxsz + \ | |
240 | nfs4_fattr_bitmap_maxsz) | |
9104a55d TM |
241 | #define encode_statfs_maxsz (encode_getattr_maxsz) |
242 | #define decode_statfs_maxsz (decode_getattr_maxsz) | |
1da177e4 LT |
243 | #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) |
244 | #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) | |
9104a55d TM |
245 | #define encode_getacl_maxsz (encode_getattr_maxsz) |
246 | #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ | |
247 | nfs4_fattr_bitmap_maxsz + 1) | |
248 | #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ | |
249 | encode_stateid_maxsz + 3) | |
250 | #define decode_setacl_maxsz (decode_setattr_maxsz) | |
e6889620 TM |
251 | #define encode_fs_locations_maxsz \ |
252 | (encode_getattr_maxsz) | |
253 | #define decode_fs_locations_maxsz \ | |
254 | (0) | |
9b7b9fcc AA |
255 | |
256 | #if defined(CONFIG_NFS_V4_1) | |
fc931582 AA |
257 | #define NFS4_MAX_MACHINE_NAME_LEN (64) |
258 | ||
99fe60d0 BH |
259 | #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ |
260 | encode_verifier_maxsz + \ | |
261 | 1 /* co_ownerid.len */ + \ | |
262 | XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ | |
263 | 1 /* flags */ + \ | |
264 | 1 /* spa_how */ + \ | |
265 | 0 /* SP4_NONE (for now) */ + \ | |
266 | 1 /* zero implemetation id array */) | |
267 | #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ | |
268 | 2 /* eir_clientid */ + \ | |
269 | 1 /* eir_sequenceid */ + \ | |
270 | 1 /* eir_flags */ + \ | |
271 | 1 /* spr_how */ + \ | |
272 | 0 /* SP4_NONE (for now) */ + \ | |
273 | 2 /* eir_server_owner.so_minor_id */ + \ | |
274 | /* eir_server_owner.so_major_id<> */ \ | |
275 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ | |
276 | /* eir_server_scope<> */ \ | |
277 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ | |
278 | 1 /* eir_server_impl_id array length */ + \ | |
279 | 0 /* ignored eir_server_impl_id contents */) | |
fc931582 AA |
280 | #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) |
281 | #define decode_channel_attrs_maxsz (6 + \ | |
282 | 1 /* ca_rdma_ird.len */ + \ | |
283 | 1 /* ca_rdma_ird */) | |
284 | #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ | |
285 | 2 /* csa_clientid */ + \ | |
286 | 1 /* csa_sequence */ + \ | |
287 | 1 /* csa_flags */ + \ | |
288 | encode_channel_attrs_maxsz + \ | |
289 | encode_channel_attrs_maxsz + \ | |
290 | 1 /* csa_cb_program */ + \ | |
291 | 1 /* csa_sec_parms.len (1) */ + \ | |
292 | 1 /* cb_secflavor (AUTH_SYS) */ + \ | |
293 | 1 /* stamp */ + \ | |
294 | 1 /* machinename.len */ + \ | |
295 | XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ | |
296 | 1 /* uid */ + \ | |
297 | 1 /* gid */ + \ | |
298 | 1 /* gids.len (0) */) | |
299 | #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ | |
300 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ | |
301 | 1 /* csr_sequence */ + \ | |
302 | 1 /* csr_flags */ + \ | |
303 | decode_channel_attrs_maxsz + \ | |
304 | decode_channel_attrs_maxsz) | |
0f3e66c6 AA |
305 | #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) |
306 | #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) | |
fc01cea9 AA |
307 | #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ |
308 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) | |
309 | #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ | |
310 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) | |
18019753 RL |
311 | #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) |
312 | #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) | |
9b7b9fcc AA |
313 | #else /* CONFIG_NFS_V4_1 */ |
314 | #define encode_sequence_maxsz 0 | |
315 | #define decode_sequence_maxsz 0 | |
316 | #endif /* CONFIG_NFS_V4_1 */ | |
317 | ||
1da177e4 LT |
318 | #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ |
319 | #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ | |
320 | #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 321 | encode_sequence_maxsz + \ |
1da177e4 | 322 | encode_putfh_maxsz + \ |
9104a55d | 323 | encode_read_maxsz) |
1da177e4 | 324 | #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 325 | decode_sequence_maxsz + \ |
1da177e4 | 326 | decode_putfh_maxsz + \ |
9104a55d | 327 | decode_read_maxsz) |
1da177e4 | 328 | #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 329 | encode_sequence_maxsz + \ |
1da177e4 | 330 | encode_putfh_maxsz + \ |
9104a55d | 331 | encode_readlink_maxsz) |
1da177e4 | 332 | #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 333 | decode_sequence_maxsz + \ |
1da177e4 | 334 | decode_putfh_maxsz + \ |
9104a55d | 335 | decode_readlink_maxsz) |
1da177e4 | 336 | #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 337 | encode_sequence_maxsz + \ |
1da177e4 | 338 | encode_putfh_maxsz + \ |
9104a55d | 339 | encode_readdir_maxsz) |
1da177e4 | 340 | #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 341 | decode_sequence_maxsz + \ |
1da177e4 | 342 | decode_putfh_maxsz + \ |
9104a55d | 343 | decode_readdir_maxsz) |
1da177e4 | 344 | #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 345 | encode_sequence_maxsz + \ |
1da177e4 | 346 | encode_putfh_maxsz + \ |
9104a55d | 347 | encode_write_maxsz + \ |
4f9838c7 | 348 | encode_getattr_maxsz) |
1da177e4 | 349 | #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 350 | decode_sequence_maxsz + \ |
1da177e4 | 351 | decode_putfh_maxsz + \ |
9104a55d | 352 | decode_write_maxsz + \ |
4f9838c7 | 353 | decode_getattr_maxsz) |
1da177e4 | 354 | #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 355 | encode_sequence_maxsz + \ |
1da177e4 | 356 | encode_putfh_maxsz + \ |
9104a55d | 357 | encode_commit_maxsz + \ |
4f9838c7 | 358 | encode_getattr_maxsz) |
1da177e4 | 359 | #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 360 | decode_sequence_maxsz + \ |
1da177e4 | 361 | decode_putfh_maxsz + \ |
9104a55d | 362 | decode_commit_maxsz + \ |
4f9838c7 | 363 | decode_getattr_maxsz) |
1da177e4 | 364 | #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 365 | encode_sequence_maxsz + \ |
2cebf828 TM |
366 | encode_putfh_maxsz + \ |
367 | encode_savefh_maxsz + \ | |
368 | encode_open_maxsz + \ | |
369 | encode_getfh_maxsz + \ | |
370 | encode_getattr_maxsz + \ | |
371 | encode_restorefh_maxsz + \ | |
372 | encode_getattr_maxsz) | |
1da177e4 | 373 | #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 374 | decode_sequence_maxsz + \ |
2cebf828 TM |
375 | decode_putfh_maxsz + \ |
376 | decode_savefh_maxsz + \ | |
377 | decode_open_maxsz + \ | |
378 | decode_getfh_maxsz + \ | |
379 | decode_getattr_maxsz + \ | |
380 | decode_restorefh_maxsz + \ | |
381 | decode_getattr_maxsz) | |
9104a55d TM |
382 | #define NFS4_enc_open_confirm_sz \ |
383 | (compound_encode_hdr_maxsz + \ | |
384 | encode_putfh_maxsz + \ | |
385 | encode_open_confirm_maxsz) | |
386 | #define NFS4_dec_open_confirm_sz \ | |
387 | (compound_decode_hdr_maxsz + \ | |
388 | decode_putfh_maxsz + \ | |
389 | decode_open_confirm_maxsz) | |
1da177e4 | 390 | #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 391 | encode_sequence_maxsz + \ |
1da177e4 | 392 | encode_putfh_maxsz + \ |
2cebf828 TM |
393 | encode_open_maxsz + \ |
394 | encode_getattr_maxsz) | |
1da177e4 | 395 | #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 396 | decode_sequence_maxsz + \ |
1da177e4 | 397 | decode_putfh_maxsz + \ |
2cebf828 TM |
398 | decode_open_maxsz + \ |
399 | decode_getattr_maxsz) | |
1da177e4 LT |
400 | #define NFS4_enc_open_downgrade_sz \ |
401 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 402 | encode_sequence_maxsz + \ |
9104a55d TM |
403 | encode_putfh_maxsz + \ |
404 | encode_open_downgrade_maxsz + \ | |
405 | encode_getattr_maxsz) | |
1da177e4 LT |
406 | #define NFS4_dec_open_downgrade_sz \ |
407 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 408 | decode_sequence_maxsz + \ |
9104a55d TM |
409 | decode_putfh_maxsz + \ |
410 | decode_open_downgrade_maxsz + \ | |
411 | decode_getattr_maxsz) | |
412 | #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 413 | encode_sequence_maxsz + \ |
9104a55d TM |
414 | encode_putfh_maxsz + \ |
415 | encode_close_maxsz + \ | |
416 | encode_getattr_maxsz) | |
417 | #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 418 | decode_sequence_maxsz + \ |
9104a55d TM |
419 | decode_putfh_maxsz + \ |
420 | decode_close_maxsz + \ | |
421 | decode_getattr_maxsz) | |
422 | #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 423 | encode_sequence_maxsz + \ |
9104a55d TM |
424 | encode_putfh_maxsz + \ |
425 | encode_setattr_maxsz + \ | |
426 | encode_getattr_maxsz) | |
427 | #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 428 | decode_sequence_maxsz + \ |
9104a55d TM |
429 | decode_putfh_maxsz + \ |
430 | decode_setattr_maxsz + \ | |
431 | decode_getattr_maxsz) | |
1da177e4 | 432 | #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 433 | encode_sequence_maxsz + \ |
1da177e4 LT |
434 | encode_putfh_maxsz + \ |
435 | encode_fsinfo_maxsz) | |
436 | #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 437 | decode_sequence_maxsz + \ |
1da177e4 LT |
438 | decode_putfh_maxsz + \ |
439 | decode_fsinfo_maxsz) | |
440 | #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ | |
441 | encode_renew_maxsz) | |
442 | #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ | |
443 | decode_renew_maxsz) | |
444 | #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ | |
445 | encode_setclientid_maxsz) | |
446 | #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ | |
447 | decode_setclientid_maxsz) | |
448 | #define NFS4_enc_setclientid_confirm_sz \ | |
449 | (compound_encode_hdr_maxsz + \ | |
450 | encode_setclientid_confirm_maxsz + \ | |
451 | encode_putrootfh_maxsz + \ | |
452 | encode_fsinfo_maxsz) | |
453 | #define NFS4_dec_setclientid_confirm_sz \ | |
454 | (compound_decode_hdr_maxsz + \ | |
455 | decode_setclientid_confirm_maxsz + \ | |
456 | decode_putrootfh_maxsz + \ | |
457 | decode_fsinfo_maxsz) | |
458 | #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 459 | encode_sequence_maxsz + \ |
1da177e4 | 460 | encode_putfh_maxsz + \ |
9104a55d | 461 | encode_lock_maxsz) |
1da177e4 | 462 | #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 463 | decode_sequence_maxsz + \ |
1da177e4 | 464 | decode_putfh_maxsz + \ |
9104a55d | 465 | decode_lock_maxsz) |
1da177e4 | 466 | #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 467 | encode_sequence_maxsz + \ |
1da177e4 | 468 | encode_putfh_maxsz + \ |
9104a55d TM |
469 | encode_lockt_maxsz) |
470 | #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 471 | decode_sequence_maxsz + \ |
9104a55d TM |
472 | decode_putfh_maxsz + \ |
473 | decode_lockt_maxsz) | |
1da177e4 | 474 | #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 475 | encode_sequence_maxsz + \ |
1da177e4 | 476 | encode_putfh_maxsz + \ |
9104a55d | 477 | encode_locku_maxsz) |
1da177e4 | 478 | #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 479 | decode_sequence_maxsz + \ |
1da177e4 | 480 | decode_putfh_maxsz + \ |
9104a55d | 481 | decode_locku_maxsz) |
d3c7b7cc TM |
482 | #define NFS4_enc_release_lockowner_sz \ |
483 | (compound_encode_hdr_maxsz + \ | |
484 | encode_lockowner_maxsz) | |
485 | #define NFS4_dec_release_lockowner_sz \ | |
486 | (compound_decode_hdr_maxsz + \ | |
487 | decode_lockowner_maxsz) | |
1da177e4 | 488 | #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 489 | encode_sequence_maxsz + \ |
1da177e4 | 490 | encode_putfh_maxsz + \ |
76b32999 TM |
491 | encode_access_maxsz + \ |
492 | encode_getattr_maxsz) | |
1da177e4 | 493 | #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 494 | decode_sequence_maxsz + \ |
1da177e4 | 495 | decode_putfh_maxsz + \ |
76b32999 TM |
496 | decode_access_maxsz + \ |
497 | decode_getattr_maxsz) | |
1da177e4 | 498 | #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 499 | encode_sequence_maxsz + \ |
1da177e4 LT |
500 | encode_putfh_maxsz + \ |
501 | encode_getattr_maxsz) | |
502 | #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 503 | decode_sequence_maxsz + \ |
1da177e4 LT |
504 | decode_putfh_maxsz + \ |
505 | decode_getattr_maxsz) | |
506 | #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 507 | encode_sequence_maxsz + \ |
1da177e4 LT |
508 | encode_putfh_maxsz + \ |
509 | encode_lookup_maxsz + \ | |
510 | encode_getattr_maxsz + \ | |
511 | encode_getfh_maxsz) | |
512 | #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 513 | decode_sequence_maxsz + \ |
1da177e4 | 514 | decode_putfh_maxsz + \ |
e6889620 | 515 | decode_lookup_maxsz + \ |
1da177e4 LT |
516 | decode_getattr_maxsz + \ |
517 | decode_getfh_maxsz) | |
518 | #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 519 | encode_sequence_maxsz + \ |
1da177e4 LT |
520 | encode_putrootfh_maxsz + \ |
521 | encode_getattr_maxsz + \ | |
522 | encode_getfh_maxsz) | |
523 | #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 524 | decode_sequence_maxsz + \ |
1da177e4 LT |
525 | decode_putrootfh_maxsz + \ |
526 | decode_getattr_maxsz + \ | |
527 | decode_getfh_maxsz) | |
528 | #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 529 | encode_sequence_maxsz + \ |
1da177e4 | 530 | encode_putfh_maxsz + \ |
16e42959 TM |
531 | encode_remove_maxsz + \ |
532 | encode_getattr_maxsz) | |
1da177e4 | 533 | #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 534 | decode_sequence_maxsz + \ |
1da177e4 | 535 | decode_putfh_maxsz + \ |
6ce18391 | 536 | decode_remove_maxsz + \ |
16e42959 | 537 | decode_getattr_maxsz) |
1da177e4 | 538 | #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 539 | encode_sequence_maxsz + \ |
1da177e4 LT |
540 | encode_putfh_maxsz + \ |
541 | encode_savefh_maxsz + \ | |
542 | encode_putfh_maxsz + \ | |
6caf2c82 TM |
543 | encode_rename_maxsz + \ |
544 | encode_getattr_maxsz + \ | |
545 | encode_restorefh_maxsz + \ | |
546 | encode_getattr_maxsz) | |
1da177e4 | 547 | #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 548 | decode_sequence_maxsz + \ |
1da177e4 LT |
549 | decode_putfh_maxsz + \ |
550 | decode_savefh_maxsz + \ | |
551 | decode_putfh_maxsz + \ | |
6caf2c82 TM |
552 | decode_rename_maxsz + \ |
553 | decode_getattr_maxsz + \ | |
554 | decode_restorefh_maxsz + \ | |
555 | decode_getattr_maxsz) | |
1da177e4 | 556 | #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 557 | encode_sequence_maxsz + \ |
1da177e4 LT |
558 | encode_putfh_maxsz + \ |
559 | encode_savefh_maxsz + \ | |
560 | encode_putfh_maxsz + \ | |
91ba2eee TM |
561 | encode_link_maxsz + \ |
562 | decode_getattr_maxsz + \ | |
563 | encode_restorefh_maxsz + \ | |
564 | decode_getattr_maxsz) | |
1da177e4 | 565 | #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 566 | decode_sequence_maxsz + \ |
1da177e4 LT |
567 | decode_putfh_maxsz + \ |
568 | decode_savefh_maxsz + \ | |
569 | decode_putfh_maxsz + \ | |
91ba2eee TM |
570 | decode_link_maxsz + \ |
571 | decode_getattr_maxsz + \ | |
572 | decode_restorefh_maxsz + \ | |
573 | decode_getattr_maxsz) | |
1da177e4 | 574 | #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 575 | encode_sequence_maxsz + \ |
1da177e4 LT |
576 | encode_putfh_maxsz + \ |
577 | encode_symlink_maxsz + \ | |
578 | encode_getattr_maxsz + \ | |
579 | encode_getfh_maxsz) | |
580 | #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 581 | decode_sequence_maxsz + \ |
1da177e4 LT |
582 | decode_putfh_maxsz + \ |
583 | decode_symlink_maxsz + \ | |
584 | decode_getattr_maxsz + \ | |
585 | decode_getfh_maxsz) | |
586 | #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 587 | encode_sequence_maxsz + \ |
1da177e4 | 588 | encode_putfh_maxsz + \ |
56ae19f3 | 589 | encode_savefh_maxsz + \ |
1da177e4 | 590 | encode_create_maxsz + \ |
56ae19f3 | 591 | encode_getfh_maxsz + \ |
1da177e4 | 592 | encode_getattr_maxsz + \ |
56ae19f3 TM |
593 | encode_restorefh_maxsz + \ |
594 | encode_getattr_maxsz) | |
1da177e4 | 595 | #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 596 | decode_sequence_maxsz + \ |
1da177e4 | 597 | decode_putfh_maxsz + \ |
56ae19f3 | 598 | decode_savefh_maxsz + \ |
1da177e4 | 599 | decode_create_maxsz + \ |
56ae19f3 | 600 | decode_getfh_maxsz + \ |
1da177e4 | 601 | decode_getattr_maxsz + \ |
56ae19f3 TM |
602 | decode_restorefh_maxsz + \ |
603 | decode_getattr_maxsz) | |
1da177e4 | 604 | #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 605 | encode_sequence_maxsz + \ |
1da177e4 LT |
606 | encode_putfh_maxsz + \ |
607 | encode_getattr_maxsz) | |
608 | #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 609 | decode_sequence_maxsz + \ |
1da177e4 LT |
610 | decode_putfh_maxsz + \ |
611 | decode_getattr_maxsz) | |
612 | #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 613 | encode_sequence_maxsz + \ |
1da177e4 | 614 | encode_putfh_maxsz + \ |
9104a55d | 615 | encode_statfs_maxsz) |
1da177e4 | 616 | #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 617 | decode_sequence_maxsz + \ |
1da177e4 | 618 | decode_putfh_maxsz + \ |
9104a55d | 619 | decode_statfs_maxsz) |
1da177e4 | 620 | #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 621 | encode_sequence_maxsz + \ |
ab91f264 | 622 | encode_putfh_maxsz + \ |
1da177e4 LT |
623 | encode_getattr_maxsz) |
624 | #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 625 | decode_sequence_maxsz + \ |
ab91f264 | 626 | decode_putfh_maxsz + \ |
1da177e4 LT |
627 | decode_getattr_maxsz) |
628 | #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 629 | encode_sequence_maxsz + \ |
1da177e4 | 630 | encode_putfh_maxsz + \ |
fa178f29 TM |
631 | encode_delegreturn_maxsz + \ |
632 | encode_getattr_maxsz) | |
1da177e4 | 633 | #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 634 | decode_sequence_maxsz + \ |
fa178f29 TM |
635 | decode_delegreturn_maxsz + \ |
636 | decode_getattr_maxsz) | |
029d105e | 637 | #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 638 | encode_sequence_maxsz + \ |
029d105e | 639 | encode_putfh_maxsz + \ |
9104a55d | 640 | encode_getacl_maxsz) |
029d105e | 641 | #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 642 | decode_sequence_maxsz + \ |
029d105e | 643 | decode_putfh_maxsz + \ |
9104a55d | 644 | decode_getacl_maxsz) |
23ec6965 | 645 | #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 646 | encode_sequence_maxsz + \ |
23ec6965 | 647 | encode_putfh_maxsz + \ |
9104a55d | 648 | encode_setacl_maxsz) |
23ec6965 | 649 | #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 650 | decode_sequence_maxsz + \ |
23ec6965 | 651 | decode_putfh_maxsz + \ |
9104a55d | 652 | decode_setacl_maxsz) |
683b57b4 TM |
653 | #define NFS4_enc_fs_locations_sz \ |
654 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 655 | encode_sequence_maxsz + \ |
683b57b4 | 656 | encode_putfh_maxsz + \ |
e6889620 TM |
657 | encode_lookup_maxsz + \ |
658 | encode_fs_locations_maxsz) | |
683b57b4 TM |
659 | #define NFS4_dec_fs_locations_sz \ |
660 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 661 | decode_sequence_maxsz + \ |
683b57b4 | 662 | decode_putfh_maxsz + \ |
e6889620 TM |
663 | decode_lookup_maxsz + \ |
664 | decode_fs_locations_maxsz) | |
99fe60d0 BH |
665 | #if defined(CONFIG_NFS_V4_1) |
666 | #define NFS4_enc_exchange_id_sz \ | |
667 | (compound_encode_hdr_maxsz + \ | |
668 | encode_exchange_id_maxsz) | |
669 | #define NFS4_dec_exchange_id_sz \ | |
670 | (compound_decode_hdr_maxsz + \ | |
671 | decode_exchange_id_maxsz) | |
fc931582 AA |
672 | #define NFS4_enc_create_session_sz \ |
673 | (compound_encode_hdr_maxsz + \ | |
674 | encode_create_session_maxsz) | |
675 | #define NFS4_dec_create_session_sz \ | |
676 | (compound_decode_hdr_maxsz + \ | |
677 | decode_create_session_maxsz) | |
0f3e66c6 AA |
678 | #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ |
679 | encode_destroy_session_maxsz) | |
680 | #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ | |
681 | decode_destroy_session_maxsz) | |
fc01cea9 AA |
682 | #define NFS4_enc_sequence_sz \ |
683 | (compound_decode_hdr_maxsz + \ | |
684 | encode_sequence_maxsz) | |
685 | #define NFS4_dec_sequence_sz \ | |
686 | (compound_decode_hdr_maxsz + \ | |
687 | decode_sequence_maxsz) | |
2050f0cc AA |
688 | #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ |
689 | encode_sequence_maxsz + \ | |
690 | encode_putrootfh_maxsz + \ | |
691 | encode_fsinfo_maxsz) | |
692 | #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ | |
693 | decode_sequence_maxsz + \ | |
694 | decode_putrootfh_maxsz + \ | |
695 | decode_fsinfo_maxsz) | |
18019753 RL |
696 | #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ |
697 | encode_sequence_maxsz + \ | |
698 | encode_reclaim_complete_maxsz) | |
699 | #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ | |
700 | decode_sequence_maxsz + \ | |
701 | decode_reclaim_complete_maxsz) | |
2449ea2e AB |
702 | |
703 | const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + | |
704 | compound_encode_hdr_maxsz + | |
705 | encode_sequence_maxsz + | |
706 | encode_putfh_maxsz + | |
707 | encode_getattr_maxsz) * | |
708 | XDR_UNIT); | |
709 | ||
710 | const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + | |
711 | compound_decode_hdr_maxsz + | |
712 | decode_sequence_maxsz + | |
713 | decode_putfh_maxsz) * | |
714 | XDR_UNIT); | |
99fe60d0 | 715 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 | 716 | |
bca79478 TM |
717 | static const umode_t nfs_type2fmt[] = { |
718 | [NF4BAD] = 0, | |
719 | [NF4REG] = S_IFREG, | |
720 | [NF4DIR] = S_IFDIR, | |
721 | [NF4BLK] = S_IFBLK, | |
722 | [NF4CHR] = S_IFCHR, | |
723 | [NF4LNK] = S_IFLNK, | |
724 | [NF4SOCK] = S_IFSOCK, | |
725 | [NF4FIFO] = S_IFIFO, | |
726 | [NF4ATTRDIR] = 0, | |
727 | [NF4NAMEDATTR] = 0, | |
1da177e4 LT |
728 | }; |
729 | ||
730 | struct compound_hdr { | |
731 | int32_t status; | |
732 | uint32_t nops; | |
d017931c | 733 | __be32 * nops_p; |
1da177e4 LT |
734 | uint32_t taglen; |
735 | char * tag; | |
0c4e8c18 | 736 | uint32_t replen; /* expected reply words */ |
66cc0429 | 737 | u32 minorversion; |
1da177e4 LT |
738 | }; |
739 | ||
13c65ce9 BH |
740 | static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) |
741 | { | |
742 | __be32 *p = xdr_reserve_space(xdr, nbytes); | |
743 | BUG_ON(!p); | |
744 | return p; | |
745 | } | |
1da177e4 LT |
746 | |
747 | static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) | |
748 | { | |
8687b63a | 749 | __be32 *p; |
1da177e4 LT |
750 | |
751 | p = xdr_reserve_space(xdr, 4 + len); | |
752 | BUG_ON(p == NULL); | |
753 | xdr_encode_opaque(p, str, len); | |
754 | } | |
755 | ||
0c4e8c18 BH |
756 | static void encode_compound_hdr(struct xdr_stream *xdr, |
757 | struct rpc_rqst *req, | |
758 | struct compound_hdr *hdr) | |
1da177e4 | 759 | { |
8687b63a | 760 | __be32 *p; |
0c4e8c18 BH |
761 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
762 | ||
763 | /* initialize running count of expected bytes in reply. | |
764 | * NOTE: the replied tag SHOULD be the same is the one sent, | |
765 | * but this is not required as a MUST for the server to do so. */ | |
766 | hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; | |
1da177e4 LT |
767 | |
768 | dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); | |
769 | BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); | |
811652bd BH |
770 | p = reserve_space(xdr, 4 + hdr->taglen + 8); |
771 | p = xdr_encode_opaque(p, hdr->tag, hdr->taglen); | |
e75bc1c8 | 772 | *p++ = cpu_to_be32(hdr->minorversion); |
d017931c | 773 | hdr->nops_p = p; |
34558513 | 774 | *p = cpu_to_be32(hdr->nops); |
d017931c AA |
775 | } |
776 | ||
777 | static void encode_nops(struct compound_hdr *hdr) | |
778 | { | |
fc931582 | 779 | BUG_ON(hdr->nops > NFS4_MAX_OPS); |
d017931c | 780 | *hdr->nops_p = htonl(hdr->nops); |
1da177e4 LT |
781 | } |
782 | ||
783 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) | |
784 | { | |
8687b63a | 785 | __be32 *p; |
1da177e4 LT |
786 | |
787 | p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); | |
788 | BUG_ON(p == NULL); | |
789 | xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); | |
790 | } | |
791 | ||
cf8cdbe5 | 792 | static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) |
1da177e4 LT |
793 | { |
794 | char owner_name[IDMAP_NAMESZ]; | |
795 | char owner_group[IDMAP_NAMESZ]; | |
796 | int owner_namelen = 0; | |
797 | int owner_grouplen = 0; | |
8687b63a AV |
798 | __be32 *p; |
799 | __be32 *q; | |
1da177e4 LT |
800 | int len; |
801 | uint32_t bmval0 = 0; | |
802 | uint32_t bmval1 = 0; | |
1da177e4 LT |
803 | |
804 | /* | |
805 | * We reserve enough space to write the entire attribute buffer at once. | |
806 | * In the worst-case, this would be | |
807 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) | |
808 | * = 36 bytes, plus any contribution from variable-length fields | |
23ec6965 | 809 | * such as owner/group. |
1da177e4 LT |
810 | */ |
811 | len = 16; | |
812 | ||
813 | /* Sigh */ | |
814 | if (iap->ia_valid & ATTR_SIZE) | |
815 | len += 8; | |
816 | if (iap->ia_valid & ATTR_MODE) | |
817 | len += 4; | |
818 | if (iap->ia_valid & ATTR_UID) { | |
7539bbab | 819 | owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); |
1da177e4 | 820 | if (owner_namelen < 0) { |
fe82a183 CL |
821 | dprintk("nfs: couldn't resolve uid %d to string\n", |
822 | iap->ia_uid); | |
1da177e4 LT |
823 | /* XXX */ |
824 | strcpy(owner_name, "nobody"); | |
825 | owner_namelen = sizeof("nobody") - 1; | |
826 | /* goto out; */ | |
827 | } | |
828 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); | |
829 | } | |
830 | if (iap->ia_valid & ATTR_GID) { | |
7539bbab | 831 | owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); |
1da177e4 | 832 | if (owner_grouplen < 0) { |
fe82a183 CL |
833 | dprintk("nfs: couldn't resolve gid %d to string\n", |
834 | iap->ia_gid); | |
1da177e4 LT |
835 | strcpy(owner_group, "nobody"); |
836 | owner_grouplen = sizeof("nobody") - 1; | |
837 | /* goto out; */ | |
838 | } | |
839 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); | |
840 | } | |
841 | if (iap->ia_valid & ATTR_ATIME_SET) | |
842 | len += 16; | |
843 | else if (iap->ia_valid & ATTR_ATIME) | |
844 | len += 4; | |
845 | if (iap->ia_valid & ATTR_MTIME_SET) | |
846 | len += 16; | |
847 | else if (iap->ia_valid & ATTR_MTIME) | |
848 | len += 4; | |
13c65ce9 | 849 | p = reserve_space(xdr, len); |
1da177e4 LT |
850 | |
851 | /* | |
852 | * We write the bitmap length now, but leave the bitmap and the attribute | |
853 | * buffer length to be backfilled at the end of this routine. | |
854 | */ | |
e75bc1c8 | 855 | *p++ = cpu_to_be32(2); |
1da177e4 LT |
856 | q = p; |
857 | p += 3; | |
858 | ||
859 | if (iap->ia_valid & ATTR_SIZE) { | |
860 | bmval0 |= FATTR4_WORD0_SIZE; | |
b95be5a9 | 861 | p = xdr_encode_hyper(p, iap->ia_size); |
1da177e4 LT |
862 | } |
863 | if (iap->ia_valid & ATTR_MODE) { | |
864 | bmval1 |= FATTR4_WORD1_MODE; | |
e75bc1c8 | 865 | *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); |
1da177e4 LT |
866 | } |
867 | if (iap->ia_valid & ATTR_UID) { | |
868 | bmval1 |= FATTR4_WORD1_OWNER; | |
811652bd | 869 | p = xdr_encode_opaque(p, owner_name, owner_namelen); |
1da177e4 LT |
870 | } |
871 | if (iap->ia_valid & ATTR_GID) { | |
872 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; | |
811652bd | 873 | p = xdr_encode_opaque(p, owner_group, owner_grouplen); |
1da177e4 LT |
874 | } |
875 | if (iap->ia_valid & ATTR_ATIME_SET) { | |
876 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
e75bc1c8 BH |
877 | *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); |
878 | *p++ = cpu_to_be32(0); | |
d3f6baaa TM |
879 | *p++ = cpu_to_be32(iap->ia_atime.tv_sec); |
880 | *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); | |
1da177e4 LT |
881 | } |
882 | else if (iap->ia_valid & ATTR_ATIME) { | |
883 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
e75bc1c8 | 884 | *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); |
1da177e4 LT |
885 | } |
886 | if (iap->ia_valid & ATTR_MTIME_SET) { | |
887 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
e75bc1c8 BH |
888 | *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); |
889 | *p++ = cpu_to_be32(0); | |
890 | *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); | |
891 | *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); | |
1da177e4 LT |
892 | } |
893 | else if (iap->ia_valid & ATTR_MTIME) { | |
894 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
e75bc1c8 | 895 | *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); |
1da177e4 | 896 | } |
6c0195a4 | 897 | |
1da177e4 LT |
898 | /* |
899 | * Now we backfill the bitmap and the attribute buffer length. | |
900 | */ | |
901 | if (len != ((char *)p - (char *)q) + 4) { | |
fe82a183 | 902 | printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", |
1da177e4 LT |
903 | len, ((char *)p - (char *)q) + 4); |
904 | BUG(); | |
905 | } | |
906 | len = (char *)p - (char *)q - 12; | |
907 | *q++ = htonl(bmval0); | |
908 | *q++ = htonl(bmval1); | |
34558513 | 909 | *q = htonl(len); |
1da177e4 | 910 | |
1da177e4 | 911 | /* out: */ |
1da177e4 LT |
912 | } |
913 | ||
cf8cdbe5 | 914 | static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) |
1da177e4 | 915 | { |
8687b63a | 916 | __be32 *p; |
1da177e4 | 917 | |
13c65ce9 | 918 | p = reserve_space(xdr, 8); |
e75bc1c8 | 919 | *p++ = cpu_to_be32(OP_ACCESS); |
34558513 | 920 | *p = cpu_to_be32(access); |
d017931c | 921 | hdr->nops++; |
dadf0c27 | 922 | hdr->replen += decode_access_maxsz; |
1da177e4 LT |
923 | } |
924 | ||
cf8cdbe5 | 925 | static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 926 | { |
8687b63a | 927 | __be32 *p; |
1da177e4 | 928 | |
13c65ce9 | 929 | p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); |
e75bc1c8 BH |
930 | *p++ = cpu_to_be32(OP_CLOSE); |
931 | *p++ = cpu_to_be32(arg->seqid->sequence->counter); | |
34558513 | 932 | xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
d017931c | 933 | hdr->nops++; |
dadf0c27 | 934 | hdr->replen += decode_close_maxsz; |
1da177e4 LT |
935 | } |
936 | ||
cf8cdbe5 | 937 | static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 938 | { |
8687b63a | 939 | __be32 *p; |
6c0195a4 | 940 | |
13c65ce9 | 941 | p = reserve_space(xdr, 16); |
e75bc1c8 | 942 | *p++ = cpu_to_be32(OP_COMMIT); |
b95be5a9 | 943 | p = xdr_encode_hyper(p, args->offset); |
34558513 | 944 | *p = cpu_to_be32(args->count); |
d017931c | 945 | hdr->nops++; |
dadf0c27 | 946 | hdr->replen += decode_commit_maxsz; |
1da177e4 LT |
947 | } |
948 | ||
cf8cdbe5 | 949 | static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) |
1da177e4 | 950 | { |
8687b63a | 951 | __be32 *p; |
6c0195a4 | 952 | |
13c65ce9 | 953 | p = reserve_space(xdr, 8); |
e75bc1c8 | 954 | *p++ = cpu_to_be32(OP_CREATE); |
34558513 | 955 | *p = cpu_to_be32(create->ftype); |
1da177e4 LT |
956 | |
957 | switch (create->ftype) { | |
958 | case NF4LNK: | |
13c65ce9 | 959 | p = reserve_space(xdr, 4); |
34558513 | 960 | *p = cpu_to_be32(create->u.symlink.len); |
94a6d753 | 961 | xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); |
1da177e4 LT |
962 | break; |
963 | ||
964 | case NF4BLK: case NF4CHR: | |
13c65ce9 | 965 | p = reserve_space(xdr, 8); |
e75bc1c8 | 966 | *p++ = cpu_to_be32(create->u.device.specdata1); |
34558513 | 967 | *p = cpu_to_be32(create->u.device.specdata2); |
1da177e4 LT |
968 | break; |
969 | ||
970 | default: | |
971 | break; | |
972 | } | |
973 | ||
811652bd | 974 | encode_string(xdr, create->name->len, create->name->name); |
d017931c | 975 | hdr->nops++; |
dadf0c27 | 976 | hdr->replen += decode_create_maxsz; |
1da177e4 | 977 | |
cf8cdbe5 | 978 | encode_attrs(xdr, create->attrs, create->server); |
1da177e4 LT |
979 | } |
980 | ||
cf8cdbe5 | 981 | static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) |
1da177e4 | 982 | { |
05d564fe | 983 | __be32 *p; |
1da177e4 | 984 | |
13c65ce9 | 985 | p = reserve_space(xdr, 12); |
e75bc1c8 BH |
986 | *p++ = cpu_to_be32(OP_GETATTR); |
987 | *p++ = cpu_to_be32(1); | |
34558513 | 988 | *p = cpu_to_be32(bitmap); |
d017931c | 989 | hdr->nops++; |
dadf0c27 | 990 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
991 | } |
992 | ||
cf8cdbe5 | 993 | static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) |
1da177e4 | 994 | { |
05d564fe | 995 | __be32 *p; |
1da177e4 | 996 | |
13c65ce9 | 997 | p = reserve_space(xdr, 16); |
e75bc1c8 BH |
998 | *p++ = cpu_to_be32(OP_GETATTR); |
999 | *p++ = cpu_to_be32(2); | |
1000 | *p++ = cpu_to_be32(bm0); | |
34558513 | 1001 | *p = cpu_to_be32(bm1); |
d017931c | 1002 | hdr->nops++; |
dadf0c27 | 1003 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
1004 | } |
1005 | ||
cf8cdbe5 | 1006 | static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 1007 | { |
cf8cdbe5 AA |
1008 | encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], |
1009 | bitmask[1] & nfs4_fattr_bitmap[1], hdr); | |
1da177e4 LT |
1010 | } |
1011 | ||
cf8cdbe5 | 1012 | static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 1013 | { |
cf8cdbe5 AA |
1014 | encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
1015 | bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); | |
1da177e4 LT |
1016 | } |
1017 | ||
cf8cdbe5 | 1018 | static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
830b8e33 | 1019 | { |
cf8cdbe5 AA |
1020 | encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], |
1021 | bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); | |
830b8e33 MN |
1022 | } |
1023 | ||
cf8cdbe5 | 1024 | static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1025 | { |
8687b63a | 1026 | __be32 *p; |
1da177e4 | 1027 | |
13c65ce9 | 1028 | p = reserve_space(xdr, 4); |
34558513 | 1029 | *p = cpu_to_be32(OP_GETFH); |
d017931c | 1030 | hdr->nops++; |
dadf0c27 | 1031 | hdr->replen += decode_getfh_maxsz; |
1da177e4 LT |
1032 | } |
1033 | ||
cf8cdbe5 | 1034 | static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1035 | { |
8687b63a | 1036 | __be32 *p; |
1da177e4 | 1037 | |
13c65ce9 | 1038 | p = reserve_space(xdr, 8 + name->len); |
e75bc1c8 | 1039 | *p++ = cpu_to_be32(OP_LINK); |
811652bd | 1040 | xdr_encode_opaque(p, name->name, name->len); |
d017931c | 1041 | hdr->nops++; |
dadf0c27 | 1042 | hdr->replen += decode_link_maxsz; |
1da177e4 LT |
1043 | } |
1044 | ||
911d1aaf TM |
1045 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
1046 | { | |
1047 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) | |
1048 | return block ? NFS4_READW_LT : NFS4_READ_LT; | |
1049 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; | |
1050 | } | |
1051 | ||
1052 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) | |
1053 | { | |
1054 | if (fl->fl_end == OFFSET_MAX) | |
1055 | return ~(uint64_t)0; | |
1056 | return fl->fl_end - fl->fl_start + 1; | |
1057 | } | |
1058 | ||
daccbded TM |
1059 | static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) |
1060 | { | |
1061 | __be32 *p; | |
1062 | ||
1063 | p = reserve_space(xdr, 28); | |
1064 | p = xdr_encode_hyper(p, lowner->clientid); | |
1065 | *p++ = cpu_to_be32(16); | |
1066 | p = xdr_encode_opaque_fixed(p, "lock id:", 8); | |
1067 | xdr_encode_hyper(p, lowner->id); | |
1068 | } | |
1069 | ||
1da177e4 LT |
1070 | /* |
1071 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 | |
1072 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 | |
1073 | */ | |
cf8cdbe5 | 1074 | static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) |
1da177e4 | 1075 | { |
8687b63a | 1076 | __be32 *p; |
1da177e4 | 1077 | |
13c65ce9 | 1078 | p = reserve_space(xdr, 32); |
e75bc1c8 BH |
1079 | *p++ = cpu_to_be32(OP_LOCK); |
1080 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); | |
1081 | *p++ = cpu_to_be32(args->reclaim); | |
b95be5a9 BH |
1082 | p = xdr_encode_hyper(p, args->fl->fl_start); |
1083 | p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); | |
34558513 | 1084 | *p = cpu_to_be32(args->new_lock_owner); |
911d1aaf | 1085 | if (args->new_lock_owner){ |
daccbded | 1086 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); |
e75bc1c8 | 1087 | *p++ = cpu_to_be32(args->open_seqid->sequence->counter); |
93f0cf25 | 1088 | p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); |
e75bc1c8 | 1089 | *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); |
daccbded | 1090 | encode_lockowner(xdr, &args->lock_owner); |
1da177e4 LT |
1091 | } |
1092 | else { | |
13c65ce9 | 1093 | p = reserve_space(xdr, NFS4_STATEID_SIZE+4); |
93f0cf25 | 1094 | p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1095 | *p = cpu_to_be32(args->lock_seqid->sequence->counter); |
1da177e4 | 1096 | } |
d017931c | 1097 | hdr->nops++; |
dadf0c27 | 1098 | hdr->replen += decode_lock_maxsz; |
1da177e4 LT |
1099 | } |
1100 | ||
cf8cdbe5 | 1101 | static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) |
1da177e4 | 1102 | { |
8687b63a | 1103 | __be32 *p; |
1da177e4 | 1104 | |
daccbded | 1105 | p = reserve_space(xdr, 24); |
e75bc1c8 BH |
1106 | *p++ = cpu_to_be32(OP_LOCKT); |
1107 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); | |
b95be5a9 BH |
1108 | p = xdr_encode_hyper(p, args->fl->fl_start); |
1109 | p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); | |
daccbded | 1110 | encode_lockowner(xdr, &args->lock_owner); |
d017931c | 1111 | hdr->nops++; |
dadf0c27 | 1112 | hdr->replen += decode_lockt_maxsz; |
1da177e4 LT |
1113 | } |
1114 | ||
cf8cdbe5 | 1115 | static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) |
1da177e4 | 1116 | { |
8687b63a | 1117 | __be32 *p; |
1da177e4 | 1118 | |
13c65ce9 | 1119 | p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); |
e75bc1c8 BH |
1120 | *p++ = cpu_to_be32(OP_LOCKU); |
1121 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); | |
1122 | *p++ = cpu_to_be32(args->seqid->sequence->counter); | |
93f0cf25 | 1123 | p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); |
b95be5a9 | 1124 | p = xdr_encode_hyper(p, args->fl->fl_start); |
34558513 | 1125 | xdr_encode_hyper(p, nfs4_lock_length(args->fl)); |
d017931c | 1126 | hdr->nops++; |
dadf0c27 | 1127 | hdr->replen += decode_locku_maxsz; |
1da177e4 LT |
1128 | } |
1129 | ||
d3c7b7cc TM |
1130 | static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) |
1131 | { | |
1132 | __be32 *p; | |
1133 | ||
1134 | p = reserve_space(xdr, 4); | |
1135 | *p = cpu_to_be32(OP_RELEASE_LOCKOWNER); | |
1136 | encode_lockowner(xdr, lowner); | |
1137 | hdr->nops++; | |
1138 | hdr->replen += decode_release_lockowner_maxsz; | |
1139 | } | |
1140 | ||
cf8cdbe5 | 1141 | static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 LT |
1142 | { |
1143 | int len = name->len; | |
8687b63a | 1144 | __be32 *p; |
1da177e4 | 1145 | |
13c65ce9 | 1146 | p = reserve_space(xdr, 8 + len); |
e75bc1c8 | 1147 | *p++ = cpu_to_be32(OP_LOOKUP); |
811652bd | 1148 | xdr_encode_opaque(p, name->name, len); |
d017931c | 1149 | hdr->nops++; |
dadf0c27 | 1150 | hdr->replen += decode_lookup_maxsz; |
1da177e4 LT |
1151 | } |
1152 | ||
dc0b027d | 1153 | static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) |
1da177e4 | 1154 | { |
8687b63a | 1155 | __be32 *p; |
1da177e4 | 1156 | |
13c65ce9 | 1157 | p = reserve_space(xdr, 8); |
dc0b027d | 1158 | switch (fmode & (FMODE_READ|FMODE_WRITE)) { |
05d564fe | 1159 | case FMODE_READ: |
e75bc1c8 | 1160 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); |
05d564fe AA |
1161 | break; |
1162 | case FMODE_WRITE: | |
e75bc1c8 | 1163 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); |
05d564fe AA |
1164 | break; |
1165 | case FMODE_READ|FMODE_WRITE: | |
e75bc1c8 | 1166 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); |
05d564fe AA |
1167 | break; |
1168 | default: | |
e75bc1c8 | 1169 | *p++ = cpu_to_be32(0); |
1da177e4 | 1170 | } |
34558513 | 1171 | *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ |
1da177e4 LT |
1172 | } |
1173 | ||
1174 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1175 | { | |
8687b63a | 1176 | __be32 *p; |
1da177e4 LT |
1177 | /* |
1178 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, | |
1179 | * owner 4 = 32 | |
1180 | */ | |
13c65ce9 | 1181 | p = reserve_space(xdr, 8); |
e75bc1c8 | 1182 | *p++ = cpu_to_be32(OP_OPEN); |
34558513 | 1183 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
dc0b027d | 1184 | encode_share_access(xdr, arg->fmode); |
13c65ce9 | 1185 | p = reserve_space(xdr, 28); |
b95be5a9 | 1186 | p = xdr_encode_hyper(p, arg->clientid); |
e75bc1c8 | 1187 | *p++ = cpu_to_be32(16); |
93f0cf25 | 1188 | p = xdr_encode_opaque_fixed(p, "open id:", 8); |
34558513 | 1189 | xdr_encode_hyper(p, arg->id); |
1da177e4 LT |
1190 | } |
1191 | ||
1192 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1193 | { | |
8687b63a | 1194 | __be32 *p; |
4882ef72 | 1195 | struct nfs_client *clp; |
1da177e4 | 1196 | |
13c65ce9 | 1197 | p = reserve_space(xdr, 4); |
1da177e4 | 1198 | switch(arg->open_flags & O_EXCL) { |
05d564fe | 1199 | case 0: |
34558513 | 1200 | *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); |
05d564fe AA |
1201 | encode_attrs(xdr, arg->u.attrs, arg->server); |
1202 | break; | |
1203 | default: | |
4882ef72 | 1204 | clp = arg->server->nfs_client; |
a4432345 | 1205 | if (clp->cl_mvops->minor_version > 0) { |
4882ef72 AB |
1206 | if (nfs4_has_persistent_session(clp)) { |
1207 | *p = cpu_to_be32(NFS4_CREATE_GUARDED); | |
1208 | encode_attrs(xdr, arg->u.attrs, arg->server); | |
1209 | } else { | |
1210 | struct iattr dummy; | |
1211 | ||
1212 | *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); | |
1213 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1214 | dummy.ia_valid = 0; | |
1215 | encode_attrs(xdr, &dummy, arg->server); | |
1216 | } | |
1217 | } else { | |
1218 | *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); | |
1219 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1220 | } | |
1da177e4 LT |
1221 | } |
1222 | } | |
1223 | ||
1224 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1225 | { | |
8687b63a | 1226 | __be32 *p; |
1da177e4 | 1227 | |
13c65ce9 | 1228 | p = reserve_space(xdr, 4); |
1da177e4 | 1229 | switch (arg->open_flags & O_CREAT) { |
05d564fe | 1230 | case 0: |
34558513 | 1231 | *p = cpu_to_be32(NFS4_OPEN_NOCREATE); |
05d564fe AA |
1232 | break; |
1233 | default: | |
1234 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); | |
34558513 | 1235 | *p = cpu_to_be32(NFS4_OPEN_CREATE); |
05d564fe | 1236 | encode_createmode(xdr, arg); |
1da177e4 LT |
1237 | } |
1238 | } | |
1239 | ||
bd7bf9d5 | 1240 | static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) |
1da177e4 | 1241 | { |
8687b63a | 1242 | __be32 *p; |
1da177e4 | 1243 | |
13c65ce9 | 1244 | p = reserve_space(xdr, 4); |
1da177e4 | 1245 | switch (delegation_type) { |
05d564fe | 1246 | case 0: |
34558513 | 1247 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); |
05d564fe AA |
1248 | break; |
1249 | case FMODE_READ: | |
34558513 | 1250 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); |
05d564fe AA |
1251 | break; |
1252 | case FMODE_WRITE|FMODE_READ: | |
34558513 | 1253 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); |
05d564fe AA |
1254 | break; |
1255 | default: | |
1256 | BUG(); | |
1da177e4 LT |
1257 | } |
1258 | } | |
1259 | ||
1260 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) | |
1261 | { | |
8687b63a | 1262 | __be32 *p; |
1da177e4 | 1263 | |
13c65ce9 | 1264 | p = reserve_space(xdr, 4); |
34558513 | 1265 | *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); |
1da177e4 LT |
1266 | encode_string(xdr, name->len, name->name); |
1267 | } | |
1268 | ||
bd7bf9d5 | 1269 | static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) |
1da177e4 | 1270 | { |
8687b63a | 1271 | __be32 *p; |
1da177e4 | 1272 | |
13c65ce9 | 1273 | p = reserve_space(xdr, 4); |
34558513 | 1274 | *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); |
1da177e4 LT |
1275 | encode_delegation_type(xdr, type); |
1276 | } | |
1277 | ||
1278 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) | |
1279 | { | |
8687b63a | 1280 | __be32 *p; |
1da177e4 | 1281 | |
13c65ce9 | 1282 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1283 | *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
34558513 | 1284 | xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1285 | encode_string(xdr, name->len, name->name); |
1286 | } | |
1287 | ||
cf8cdbe5 | 1288 | static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) |
1da177e4 LT |
1289 | { |
1290 | encode_openhdr(xdr, arg); | |
1291 | encode_opentype(xdr, arg); | |
1292 | switch (arg->claim) { | |
05d564fe AA |
1293 | case NFS4_OPEN_CLAIM_NULL: |
1294 | encode_claim_null(xdr, arg->name); | |
1295 | break; | |
1296 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
1297 | encode_claim_previous(xdr, arg->u.delegation_type); | |
1298 | break; | |
1299 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: | |
1300 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); | |
1301 | break; | |
1302 | default: | |
1303 | BUG(); | |
1da177e4 | 1304 | } |
d017931c | 1305 | hdr->nops++; |
dadf0c27 | 1306 | hdr->replen += decode_open_maxsz; |
1da177e4 LT |
1307 | } |
1308 | ||
cf8cdbe5 | 1309 | static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1310 | { |
8687b63a | 1311 | __be32 *p; |
1da177e4 | 1312 | |
13c65ce9 | 1313 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); |
e75bc1c8 | 1314 | *p++ = cpu_to_be32(OP_OPEN_CONFIRM); |
93f0cf25 | 1315 | p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1316 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
d017931c | 1317 | hdr->nops++; |
dadf0c27 | 1318 | hdr->replen += decode_open_confirm_maxsz; |
1da177e4 LT |
1319 | } |
1320 | ||
cf8cdbe5 | 1321 | static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1322 | { |
8687b63a | 1323 | __be32 *p; |
1da177e4 | 1324 | |
13c65ce9 | 1325 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); |
e75bc1c8 | 1326 | *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); |
93f0cf25 | 1327 | p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1328 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
dc0b027d | 1329 | encode_share_access(xdr, arg->fmode); |
d017931c | 1330 | hdr->nops++; |
dadf0c27 | 1331 | hdr->replen += decode_open_downgrade_maxsz; |
1da177e4 LT |
1332 | } |
1333 | ||
cf8cdbe5 | 1334 | static void |
d017931c | 1335 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) |
1da177e4 LT |
1336 | { |
1337 | int len = fh->size; | |
8687b63a | 1338 | __be32 *p; |
1da177e4 | 1339 | |
13c65ce9 | 1340 | p = reserve_space(xdr, 8 + len); |
e75bc1c8 | 1341 | *p++ = cpu_to_be32(OP_PUTFH); |
811652bd | 1342 | xdr_encode_opaque(p, fh->data, len); |
d017931c | 1343 | hdr->nops++; |
dadf0c27 | 1344 | hdr->replen += decode_putfh_maxsz; |
1da177e4 LT |
1345 | } |
1346 | ||
cf8cdbe5 | 1347 | static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1348 | { |
05d564fe | 1349 | __be32 *p; |
6c0195a4 | 1350 | |
13c65ce9 | 1351 | p = reserve_space(xdr, 4); |
34558513 | 1352 | *p = cpu_to_be32(OP_PUTROOTFH); |
d017931c | 1353 | hdr->nops++; |
dadf0c27 | 1354 | hdr->replen += decode_putrootfh_maxsz; |
1da177e4 LT |
1355 | } |
1356 | ||
f11ac8db | 1357 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx) |
1da177e4 | 1358 | { |
1da177e4 | 1359 | nfs4_stateid stateid; |
8687b63a | 1360 | __be32 *p; |
1da177e4 | 1361 | |
13c65ce9 | 1362 | p = reserve_space(xdr, NFS4_STATEID_SIZE); |
1da177e4 | 1363 | if (ctx->state != NULL) { |
77041ed9 | 1364 | nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid); |
34558513 | 1365 | xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); |
1da177e4 | 1366 | } else |
34558513 | 1367 | xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1368 | } |
1369 | ||
cf8cdbe5 | 1370 | static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) |
1da177e4 | 1371 | { |
8687b63a | 1372 | __be32 *p; |
1da177e4 | 1373 | |
13c65ce9 | 1374 | p = reserve_space(xdr, 4); |
34558513 | 1375 | *p = cpu_to_be32(OP_READ); |
1da177e4 | 1376 | |
f11ac8db | 1377 | encode_stateid(xdr, args->context, args->lock_context); |
1da177e4 | 1378 | |
13c65ce9 | 1379 | p = reserve_space(xdr, 12); |
b95be5a9 | 1380 | p = xdr_encode_hyper(p, args->offset); |
34558513 | 1381 | *p = cpu_to_be32(args->count); |
d017931c | 1382 | hdr->nops++; |
dadf0c27 | 1383 | hdr->replen += decode_read_maxsz; |
1da177e4 LT |
1384 | } |
1385 | ||
cf8cdbe5 | 1386 | static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1387 | { |
97d312d0 MN |
1388 | uint32_t attrs[2] = { |
1389 | FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, | |
1390 | FATTR4_WORD1_MOUNTED_ON_FILEID, | |
1391 | }; | |
8687b63a | 1392 | __be32 *p; |
1da177e4 | 1393 | |
13c65ce9 | 1394 | p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); |
e75bc1c8 | 1395 | *p++ = cpu_to_be32(OP_READDIR); |
b95be5a9 | 1396 | p = xdr_encode_hyper(p, readdir->cookie); |
93f0cf25 | 1397 | p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); |
e75bc1c8 BH |
1398 | *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */ |
1399 | *p++ = cpu_to_be32(readdir->count); | |
1400 | *p++ = cpu_to_be32(2); | |
97d312d0 MN |
1401 | /* Switch to mounted_on_fileid if the server supports it */ |
1402 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) | |
1403 | attrs[0] &= ~FATTR4_WORD0_FILEID; | |
1404 | else | |
1405 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
e75bc1c8 | 1406 | *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); |
34558513 | 1407 | *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); |
d017931c | 1408 | hdr->nops++; |
dadf0c27 | 1409 | hdr->replen += decode_readdir_maxsz; |
44109241 FI |
1410 | dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", |
1411 | __func__, | |
eadf4598 TM |
1412 | (unsigned long long)readdir->cookie, |
1413 | ((u32 *)readdir->verifier.data)[0], | |
1414 | ((u32 *)readdir->verifier.data)[1], | |
1415 | attrs[0] & readdir->bitmask[0], | |
1416 | attrs[1] & readdir->bitmask[1]); | |
1da177e4 LT |
1417 | } |
1418 | ||
cf8cdbe5 | 1419 | static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1420 | { |
8687b63a | 1421 | __be32 *p; |
1da177e4 | 1422 | |
13c65ce9 | 1423 | p = reserve_space(xdr, 4); |
34558513 | 1424 | *p = cpu_to_be32(OP_READLINK); |
d017931c | 1425 | hdr->nops++; |
dadf0c27 | 1426 | hdr->replen += decode_readlink_maxsz; |
1da177e4 LT |
1427 | } |
1428 | ||
cf8cdbe5 | 1429 | static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1430 | { |
8687b63a | 1431 | __be32 *p; |
1da177e4 | 1432 | |
13c65ce9 | 1433 | p = reserve_space(xdr, 8 + name->len); |
e75bc1c8 | 1434 | *p++ = cpu_to_be32(OP_REMOVE); |
811652bd | 1435 | xdr_encode_opaque(p, name->name, name->len); |
d017931c | 1436 | hdr->nops++; |
dadf0c27 | 1437 | hdr->replen += decode_remove_maxsz; |
1da177e4 LT |
1438 | } |
1439 | ||
cf8cdbe5 | 1440 | static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) |
1da177e4 | 1441 | { |
8687b63a | 1442 | __be32 *p; |
1da177e4 | 1443 | |
811652bd BH |
1444 | p = reserve_space(xdr, 4); |
1445 | *p = cpu_to_be32(OP_RENAME); | |
1446 | encode_string(xdr, oldname->len, oldname->name); | |
1447 | encode_string(xdr, newname->len, newname->name); | |
d017931c | 1448 | hdr->nops++; |
dadf0c27 | 1449 | hdr->replen += decode_rename_maxsz; |
1da177e4 LT |
1450 | } |
1451 | ||
cf8cdbe5 | 1452 | static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) |
1da177e4 | 1453 | { |
8687b63a | 1454 | __be32 *p; |
1da177e4 | 1455 | |
13c65ce9 | 1456 | p = reserve_space(xdr, 12); |
e75bc1c8 | 1457 | *p++ = cpu_to_be32(OP_RENEW); |
34558513 | 1458 | xdr_encode_hyper(p, client_stateid->cl_clientid); |
d017931c | 1459 | hdr->nops++; |
dadf0c27 | 1460 | hdr->replen += decode_renew_maxsz; |
1da177e4 LT |
1461 | } |
1462 | ||
cf8cdbe5 | 1463 | static void |
d017931c | 1464 | encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
56ae19f3 | 1465 | { |
8687b63a | 1466 | __be32 *p; |
56ae19f3 | 1467 | |
13c65ce9 | 1468 | p = reserve_space(xdr, 4); |
34558513 | 1469 | *p = cpu_to_be32(OP_RESTOREFH); |
d017931c | 1470 | hdr->nops++; |
dadf0c27 | 1471 | hdr->replen += decode_restorefh_maxsz; |
56ae19f3 TM |
1472 | } |
1473 | ||
23ec6965 | 1474 | static int |
d017931c | 1475 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) |
23ec6965 | 1476 | { |
8687b63a | 1477 | __be32 *p; |
23ec6965 | 1478 | |
13c65ce9 | 1479 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1480 | *p++ = cpu_to_be32(OP_SETATTR); |
34558513 | 1481 | xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); |
13c65ce9 | 1482 | p = reserve_space(xdr, 2*4); |
e75bc1c8 | 1483 | *p++ = cpu_to_be32(1); |
34558513 | 1484 | *p = cpu_to_be32(FATTR4_WORD0_ACL); |
23ec6965 BF |
1485 | if (arg->acl_len % 4) |
1486 | return -EINVAL; | |
13c65ce9 | 1487 | p = reserve_space(xdr, 4); |
34558513 | 1488 | *p = cpu_to_be32(arg->acl_len); |
23ec6965 | 1489 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); |
d017931c | 1490 | hdr->nops++; |
dadf0c27 | 1491 | hdr->replen += decode_setacl_maxsz; |
23ec6965 BF |
1492 | return 0; |
1493 | } | |
1494 | ||
cf8cdbe5 | 1495 | static void |
d017931c | 1496 | encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1497 | { |
8687b63a | 1498 | __be32 *p; |
1da177e4 | 1499 | |
13c65ce9 | 1500 | p = reserve_space(xdr, 4); |
34558513 | 1501 | *p = cpu_to_be32(OP_SAVEFH); |
d017931c | 1502 | hdr->nops++; |
dadf0c27 | 1503 | hdr->replen += decode_savefh_maxsz; |
1da177e4 LT |
1504 | } |
1505 | ||
cf8cdbe5 | 1506 | static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) |
1da177e4 | 1507 | { |
8687b63a | 1508 | __be32 *p; |
6c0195a4 | 1509 | |
13c65ce9 | 1510 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1511 | *p++ = cpu_to_be32(OP_SETATTR); |
34558513 | 1512 | xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); |
d017931c | 1513 | hdr->nops++; |
dadf0c27 | 1514 | hdr->replen += decode_setattr_maxsz; |
cf8cdbe5 | 1515 | encode_attrs(xdr, arg->iap, server); |
1da177e4 LT |
1516 | } |
1517 | ||
cf8cdbe5 | 1518 | static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) |
1da177e4 | 1519 | { |
8687b63a | 1520 | __be32 *p; |
1da177e4 | 1521 | |
13c65ce9 | 1522 | p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); |
e75bc1c8 | 1523 | *p++ = cpu_to_be32(OP_SETCLIENTID); |
34558513 | 1524 | xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1525 | |
1526 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); | |
13c65ce9 | 1527 | p = reserve_space(xdr, 4); |
34558513 | 1528 | *p = cpu_to_be32(setclientid->sc_prog); |
1da177e4 LT |
1529 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); |
1530 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); | |
13c65ce9 | 1531 | p = reserve_space(xdr, 4); |
34558513 | 1532 | *p = cpu_to_be32(setclientid->sc_cb_ident); |
d017931c | 1533 | hdr->nops++; |
dadf0c27 | 1534 | hdr->replen += decode_setclientid_maxsz; |
1da177e4 LT |
1535 | } |
1536 | ||
bb8b27e5 | 1537 | static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) |
1da177e4 | 1538 | { |
05d564fe | 1539 | __be32 *p; |
1da177e4 | 1540 | |
13c65ce9 | 1541 | p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); |
e75bc1c8 | 1542 | *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); |
bb8b27e5 TM |
1543 | p = xdr_encode_hyper(p, arg->clientid); |
1544 | xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE); | |
d017931c | 1545 | hdr->nops++; |
dadf0c27 | 1546 | hdr->replen += decode_setclientid_confirm_maxsz; |
1da177e4 LT |
1547 | } |
1548 | ||
cf8cdbe5 | 1549 | static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 1550 | { |
8687b63a | 1551 | __be32 *p; |
1da177e4 | 1552 | |
13c65ce9 | 1553 | p = reserve_space(xdr, 4); |
34558513 | 1554 | *p = cpu_to_be32(OP_WRITE); |
1da177e4 | 1555 | |
f11ac8db | 1556 | encode_stateid(xdr, args->context, args->lock_context); |
1da177e4 | 1557 | |
13c65ce9 | 1558 | p = reserve_space(xdr, 16); |
b95be5a9 | 1559 | p = xdr_encode_hyper(p, args->offset); |
e75bc1c8 | 1560 | *p++ = cpu_to_be32(args->stable); |
34558513 | 1561 | *p = cpu_to_be32(args->count); |
1da177e4 LT |
1562 | |
1563 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); | |
d017931c | 1564 | hdr->nops++; |
dadf0c27 | 1565 | hdr->replen += decode_write_maxsz; |
1da177e4 LT |
1566 | } |
1567 | ||
cf8cdbe5 | 1568 | static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) |
1da177e4 | 1569 | { |
8687b63a | 1570 | __be32 *p; |
1da177e4 | 1571 | |
13c65ce9 | 1572 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
1da177e4 | 1573 | |
e75bc1c8 | 1574 | *p++ = cpu_to_be32(OP_DELEGRETURN); |
34558513 | 1575 | xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); |
d017931c | 1576 | hdr->nops++; |
dadf0c27 | 1577 | hdr->replen += decode_delegreturn_maxsz; |
1da177e4 | 1578 | } |
9b7b9fcc | 1579 | |
99fe60d0 | 1580 | #if defined(CONFIG_NFS_V4_1) |
9b7b9fcc | 1581 | /* NFSv4.1 operations */ |
99fe60d0 BH |
1582 | static void encode_exchange_id(struct xdr_stream *xdr, |
1583 | struct nfs41_exchange_id_args *args, | |
1584 | struct compound_hdr *hdr) | |
1585 | { | |
1586 | __be32 *p; | |
1587 | ||
13c65ce9 | 1588 | p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); |
e75bc1c8 | 1589 | *p++ = cpu_to_be32(OP_EXCHANGE_ID); |
34558513 | 1590 | xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); |
99fe60d0 BH |
1591 | |
1592 | encode_string(xdr, args->id_len, args->id); | |
1593 | ||
13c65ce9 | 1594 | p = reserve_space(xdr, 12); |
e75bc1c8 BH |
1595 | *p++ = cpu_to_be32(args->flags); |
1596 | *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ | |
34558513 | 1597 | *p = cpu_to_be32(0); /* zero length implementation id array */ |
99fe60d0 BH |
1598 | hdr->nops++; |
1599 | hdr->replen += decode_exchange_id_maxsz; | |
1600 | } | |
fc931582 AA |
1601 | |
1602 | static void encode_create_session(struct xdr_stream *xdr, | |
1603 | struct nfs41_create_session_args *args, | |
1604 | struct compound_hdr *hdr) | |
1605 | { | |
1606 | __be32 *p; | |
1607 | char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; | |
1608 | uint32_t len; | |
1609 | struct nfs_client *clp = args->client; | |
8e0d46e1 MS |
1610 | u32 max_resp_sz_cached; |
1611 | ||
1612 | /* | |
1613 | * Assumes OPEN is the biggest non-idempotent compound. | |
1614 | * 2 is the verifier. | |
1615 | */ | |
1616 | max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + | |
1617 | RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; | |
fc931582 | 1618 | |
42edd698 BH |
1619 | len = scnprintf(machine_name, sizeof(machine_name), "%s", |
1620 | clp->cl_ipaddr); | |
fc931582 | 1621 | |
13c65ce9 | 1622 | p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); |
42edd698 | 1623 | *p++ = cpu_to_be32(OP_CREATE_SESSION); |
b95be5a9 | 1624 | p = xdr_encode_hyper(p, clp->cl_ex_clid); |
e75bc1c8 BH |
1625 | *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ |
1626 | *p++ = cpu_to_be32(args->flags); /*flags */ | |
fc931582 | 1627 | |
fc931582 | 1628 | /* Fore Channel */ |
e75bc1c8 BH |
1629 | *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ |
1630 | *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ | |
1631 | *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ | |
8e0d46e1 | 1632 | *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ |
e75bc1c8 BH |
1633 | *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ |
1634 | *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ | |
1635 | *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ | |
fc931582 AA |
1636 | |
1637 | /* Back Channel */ | |
e75bc1c8 BH |
1638 | *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ |
1639 | *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ | |
1640 | *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ | |
1641 | *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ | |
1642 | *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ | |
1643 | *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ | |
1644 | *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ | |
fc931582 | 1645 | |
e75bc1c8 | 1646 | *p++ = cpu_to_be32(args->cb_program); /* cb_program */ |
e75bc1c8 | 1647 | *p++ = cpu_to_be32(1); |
e75bc1c8 | 1648 | *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ |
fc931582 AA |
1649 | |
1650 | /* authsys_parms rfc1831 */ | |
e75bc1c8 | 1651 | *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ |
811652bd | 1652 | p = xdr_encode_opaque(p, machine_name, len); |
e75bc1c8 BH |
1653 | *p++ = cpu_to_be32(0); /* UID */ |
1654 | *p++ = cpu_to_be32(0); /* GID */ | |
34558513 | 1655 | *p = cpu_to_be32(0); /* No more gids */ |
fc931582 AA |
1656 | hdr->nops++; |
1657 | hdr->replen += decode_create_session_maxsz; | |
1658 | } | |
0f3e66c6 AA |
1659 | |
1660 | static void encode_destroy_session(struct xdr_stream *xdr, | |
1661 | struct nfs4_session *session, | |
1662 | struct compound_hdr *hdr) | |
1663 | { | |
1664 | __be32 *p; | |
13c65ce9 | 1665 | p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); |
e75bc1c8 | 1666 | *p++ = cpu_to_be32(OP_DESTROY_SESSION); |
34558513 | 1667 | xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); |
0f3e66c6 AA |
1668 | hdr->nops++; |
1669 | hdr->replen += decode_destroy_session_maxsz; | |
1670 | } | |
18019753 RL |
1671 | |
1672 | static void encode_reclaim_complete(struct xdr_stream *xdr, | |
1673 | struct nfs41_reclaim_complete_args *args, | |
1674 | struct compound_hdr *hdr) | |
1675 | { | |
1676 | __be32 *p; | |
1677 | ||
1678 | p = reserve_space(xdr, 8); | |
1679 | *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); | |
1680 | *p++ = cpu_to_be32(args->one_fs); | |
1681 | hdr->nops++; | |
1682 | hdr->replen += decode_reclaim_complete_maxsz; | |
1683 | } | |
99fe60d0 BH |
1684 | #endif /* CONFIG_NFS_V4_1 */ |
1685 | ||
9b7b9fcc AA |
1686 | static void encode_sequence(struct xdr_stream *xdr, |
1687 | const struct nfs4_sequence_args *args, | |
1688 | struct compound_hdr *hdr) | |
1689 | { | |
1690 | #if defined(CONFIG_NFS_V4_1) | |
1691 | struct nfs4_session *session = args->sa_session; | |
fc01cea9 AA |
1692 | struct nfs4_slot_table *tp; |
1693 | struct nfs4_slot *slot; | |
1694 | __be32 *p; | |
9b7b9fcc AA |
1695 | |
1696 | if (!session) | |
1697 | return; | |
1698 | ||
fc01cea9 AA |
1699 | tp = &session->fc_slot_table; |
1700 | ||
1701 | WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); | |
1702 | slot = tp->slots + args->sa_slotid; | |
1703 | ||
13c65ce9 | 1704 | p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); |
e75bc1c8 | 1705 | *p++ = cpu_to_be32(OP_SEQUENCE); |
fc01cea9 AA |
1706 | |
1707 | /* | |
1708 | * Sessionid + seqid + slotid + max slotid + cache_this | |
1709 | */ | |
1710 | dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " | |
1711 | "max_slotid=%d cache_this=%d\n", | |
1712 | __func__, | |
1713 | ((u32 *)session->sess_id.data)[0], | |
1714 | ((u32 *)session->sess_id.data)[1], | |
1715 | ((u32 *)session->sess_id.data)[2], | |
1716 | ((u32 *)session->sess_id.data)[3], | |
1717 | slot->seq_nr, args->sa_slotid, | |
1718 | tp->highest_used_slotid, args->sa_cache_this); | |
93f0cf25 | 1719 | p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); |
e75bc1c8 BH |
1720 | *p++ = cpu_to_be32(slot->seq_nr); |
1721 | *p++ = cpu_to_be32(args->sa_slotid); | |
1722 | *p++ = cpu_to_be32(tp->highest_used_slotid); | |
34558513 | 1723 | *p = cpu_to_be32(args->sa_cache_this); |
9b7b9fcc AA |
1724 | hdr->nops++; |
1725 | hdr->replen += decode_sequence_maxsz; | |
1726 | #endif /* CONFIG_NFS_V4_1 */ | |
1727 | } | |
1728 | ||
1da177e4 LT |
1729 | /* |
1730 | * END OF "GENERIC" ENCODE ROUTINES. | |
1731 | */ | |
1732 | ||
66cc0429 BH |
1733 | static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) |
1734 | { | |
1735 | #if defined(CONFIG_NFS_V4_1) | |
1736 | if (args->sa_session) | |
a4432345 | 1737 | return args->sa_session->clp->cl_mvops->minor_version; |
66cc0429 BH |
1738 | #endif /* CONFIG_NFS_V4_1 */ |
1739 | return 0; | |
1740 | } | |
1741 | ||
1da177e4 LT |
1742 | /* |
1743 | * Encode an ACCESS request | |
1744 | */ | |
8687b63a | 1745 | static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) |
1da177e4 LT |
1746 | { |
1747 | struct xdr_stream xdr; | |
1748 | struct compound_hdr hdr = { | |
66cc0429 | 1749 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1750 | }; |
1da177e4 LT |
1751 | |
1752 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1753 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1754 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1755 | encode_putfh(&xdr, args->fh, &hdr); |
1756 | encode_access(&xdr, args->access, &hdr); | |
1757 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1758 | encode_nops(&hdr); |
cf8cdbe5 | 1759 | return 0; |
1da177e4 LT |
1760 | } |
1761 | ||
1762 | /* | |
1763 | * Encode LOOKUP request | |
1764 | */ | |
8687b63a | 1765 | static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) |
1da177e4 LT |
1766 | { |
1767 | struct xdr_stream xdr; | |
1768 | struct compound_hdr hdr = { | |
66cc0429 | 1769 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1770 | }; |
1da177e4 LT |
1771 | |
1772 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1773 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1774 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1775 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1776 | encode_lookup(&xdr, args->name, &hdr); | |
1777 | encode_getfh(&xdr, &hdr); | |
1778 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1779 | encode_nops(&hdr); |
cf8cdbe5 | 1780 | return 0; |
1da177e4 LT |
1781 | } |
1782 | ||
1783 | /* | |
1784 | * Encode LOOKUP_ROOT request | |
1785 | */ | |
8687b63a | 1786 | static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) |
1da177e4 LT |
1787 | { |
1788 | struct xdr_stream xdr; | |
1789 | struct compound_hdr hdr = { | |
66cc0429 | 1790 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1791 | }; |
1da177e4 LT |
1792 | |
1793 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1794 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1795 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1796 | encode_putrootfh(&xdr, &hdr); |
1797 | encode_getfh(&xdr, &hdr); | |
1798 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1799 | encode_nops(&hdr); |
cf8cdbe5 | 1800 | return 0; |
1da177e4 LT |
1801 | } |
1802 | ||
1803 | /* | |
1804 | * Encode REMOVE request | |
1805 | */ | |
4fdc17b2 | 1806 | static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) |
1da177e4 LT |
1807 | { |
1808 | struct xdr_stream xdr; | |
1809 | struct compound_hdr hdr = { | |
66cc0429 | 1810 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1811 | }; |
1da177e4 LT |
1812 | |
1813 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1814 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1815 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1816 | encode_putfh(&xdr, args->fh, &hdr); |
1817 | encode_remove(&xdr, &args->name, &hdr); | |
1818 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1819 | encode_nops(&hdr); |
cf8cdbe5 | 1820 | return 0; |
1da177e4 LT |
1821 | } |
1822 | ||
1823 | /* | |
1824 | * Encode RENAME request | |
1825 | */ | |
8687b63a | 1826 | static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) |
1da177e4 LT |
1827 | { |
1828 | struct xdr_stream xdr; | |
1829 | struct compound_hdr hdr = { | |
66cc0429 | 1830 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1831 | }; |
1da177e4 LT |
1832 | |
1833 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1834 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1835 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1836 | encode_putfh(&xdr, args->old_dir, &hdr); |
1837 | encode_savefh(&xdr, &hdr); | |
1838 | encode_putfh(&xdr, args->new_dir, &hdr); | |
1839 | encode_rename(&xdr, args->old_name, args->new_name, &hdr); | |
1840 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1841 | encode_restorefh(&xdr, &hdr); | |
1842 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1843 | encode_nops(&hdr); |
cf8cdbe5 | 1844 | return 0; |
1da177e4 LT |
1845 | } |
1846 | ||
1847 | /* | |
1848 | * Encode LINK request | |
1849 | */ | |
8687b63a | 1850 | static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) |
1da177e4 LT |
1851 | { |
1852 | struct xdr_stream xdr; | |
1853 | struct compound_hdr hdr = { | |
66cc0429 | 1854 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1855 | }; |
1da177e4 LT |
1856 | |
1857 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1858 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1859 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1860 | encode_putfh(&xdr, args->fh, &hdr); |
1861 | encode_savefh(&xdr, &hdr); | |
1862 | encode_putfh(&xdr, args->dir_fh, &hdr); | |
1863 | encode_link(&xdr, args->name, &hdr); | |
1864 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1865 | encode_restorefh(&xdr, &hdr); | |
1866 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1867 | encode_nops(&hdr); |
cf8cdbe5 | 1868 | return 0; |
1da177e4 LT |
1869 | } |
1870 | ||
1871 | /* | |
1872 | * Encode CREATE request | |
1873 | */ | |
8687b63a | 1874 | static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1875 | { |
1876 | struct xdr_stream xdr; | |
1877 | struct compound_hdr hdr = { | |
66cc0429 | 1878 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1879 | }; |
1da177e4 LT |
1880 | |
1881 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1882 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1883 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1884 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1885 | encode_savefh(&xdr, &hdr); | |
1886 | encode_create(&xdr, args, &hdr); | |
1887 | encode_getfh(&xdr, &hdr); | |
1888 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1889 | encode_restorefh(&xdr, &hdr); | |
1890 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1891 | encode_nops(&hdr); |
cf8cdbe5 | 1892 | return 0; |
1da177e4 LT |
1893 | } |
1894 | ||
1895 | /* | |
1896 | * Encode SYMLINK request | |
1897 | */ | |
8687b63a | 1898 | static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1899 | { |
1900 | return nfs4_xdr_enc_create(req, p, args); | |
1901 | } | |
1902 | ||
1903 | /* | |
1904 | * Encode GETATTR request | |
1905 | */ | |
8687b63a | 1906 | static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) |
1da177e4 LT |
1907 | { |
1908 | struct xdr_stream xdr; | |
1909 | struct compound_hdr hdr = { | |
66cc0429 | 1910 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1911 | }; |
1da177e4 LT |
1912 | |
1913 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1914 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1915 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1916 | encode_putfh(&xdr, args->fh, &hdr); |
1917 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1918 | encode_nops(&hdr); |
cf8cdbe5 | 1919 | return 0; |
1da177e4 LT |
1920 | } |
1921 | ||
1922 | /* | |
1923 | * Encode a CLOSE request | |
1924 | */ | |
8687b63a | 1925 | static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 | 1926 | { |
05d564fe AA |
1927 | struct xdr_stream xdr; |
1928 | struct compound_hdr hdr = { | |
66cc0429 | 1929 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 1930 | }; |
05d564fe AA |
1931 | |
1932 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1933 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1934 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1935 | encode_putfh(&xdr, args->fh, &hdr); |
1936 | encode_close(&xdr, args, &hdr); | |
1937 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1938 | encode_nops(&hdr); |
cf8cdbe5 | 1939 | return 0; |
1da177e4 LT |
1940 | } |
1941 | ||
1942 | /* | |
1943 | * Encode an OPEN request | |
1944 | */ | |
8687b63a | 1945 | static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1946 | { |
1947 | struct xdr_stream xdr; | |
1948 | struct compound_hdr hdr = { | |
66cc0429 | 1949 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1950 | }; |
1da177e4 LT |
1951 | |
1952 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1953 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1954 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1955 | encode_putfh(&xdr, args->fh, &hdr); |
1956 | encode_savefh(&xdr, &hdr); | |
1957 | encode_open(&xdr, args, &hdr); | |
1958 | encode_getfh(&xdr, &hdr); | |
1959 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1960 | encode_restorefh(&xdr, &hdr); | |
1961 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1962 | encode_nops(&hdr); |
cf8cdbe5 | 1963 | return 0; |
1da177e4 LT |
1964 | } |
1965 | ||
1966 | /* | |
1967 | * Encode an OPEN_CONFIRM request | |
1968 | */ | |
8687b63a | 1969 | static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) |
1da177e4 LT |
1970 | { |
1971 | struct xdr_stream xdr; | |
1972 | struct compound_hdr hdr = { | |
d017931c | 1973 | .nops = 0, |
1da177e4 | 1974 | }; |
1da177e4 LT |
1975 | |
1976 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1977 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1978 | encode_putfh(&xdr, args->fh, &hdr); |
1979 | encode_open_confirm(&xdr, args, &hdr); | |
d017931c | 1980 | encode_nops(&hdr); |
cf8cdbe5 | 1981 | return 0; |
1da177e4 LT |
1982 | } |
1983 | ||
1984 | /* | |
1985 | * Encode an OPEN request with no attributes. | |
1986 | */ | |
8687b63a | 1987 | static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1988 | { |
1989 | struct xdr_stream xdr; | |
1990 | struct compound_hdr hdr = { | |
66cc0429 | 1991 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1992 | }; |
1da177e4 LT |
1993 | |
1994 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1995 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1996 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1997 | encode_putfh(&xdr, args->fh, &hdr); |
1998 | encode_open(&xdr, args, &hdr); | |
1999 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2000 | encode_nops(&hdr); |
cf8cdbe5 | 2001 | return 0; |
1da177e4 LT |
2002 | } |
2003 | ||
2004 | /* | |
2005 | * Encode an OPEN_DOWNGRADE request | |
2006 | */ | |
8687b63a | 2007 | static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 LT |
2008 | { |
2009 | struct xdr_stream xdr; | |
2010 | struct compound_hdr hdr = { | |
66cc0429 | 2011 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2012 | }; |
1da177e4 LT |
2013 | |
2014 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2015 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2016 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2017 | encode_putfh(&xdr, args->fh, &hdr); |
2018 | encode_open_downgrade(&xdr, args, &hdr); | |
2019 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2020 | encode_nops(&hdr); |
cf8cdbe5 | 2021 | return 0; |
1da177e4 LT |
2022 | } |
2023 | ||
2024 | /* | |
2025 | * Encode a LOCK request | |
2026 | */ | |
8687b63a | 2027 | static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) |
1da177e4 LT |
2028 | { |
2029 | struct xdr_stream xdr; | |
2030 | struct compound_hdr hdr = { | |
66cc0429 | 2031 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2032 | }; |
1da177e4 LT |
2033 | |
2034 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2035 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2036 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2037 | encode_putfh(&xdr, args->fh, &hdr); |
2038 | encode_lock(&xdr, args, &hdr); | |
d017931c | 2039 | encode_nops(&hdr); |
cf8cdbe5 | 2040 | return 0; |
1da177e4 LT |
2041 | } |
2042 | ||
2043 | /* | |
2044 | * Encode a LOCKT request | |
2045 | */ | |
8687b63a | 2046 | static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) |
1da177e4 LT |
2047 | { |
2048 | struct xdr_stream xdr; | |
2049 | struct compound_hdr hdr = { | |
66cc0429 | 2050 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2051 | }; |
1da177e4 LT |
2052 | |
2053 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2054 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2055 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2056 | encode_putfh(&xdr, args->fh, &hdr); |
2057 | encode_lockt(&xdr, args, &hdr); | |
d017931c | 2058 | encode_nops(&hdr); |
cf8cdbe5 | 2059 | return 0; |
1da177e4 LT |
2060 | } |
2061 | ||
2062 | /* | |
2063 | * Encode a LOCKU request | |
2064 | */ | |
8687b63a | 2065 | static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) |
1da177e4 LT |
2066 | { |
2067 | struct xdr_stream xdr; | |
2068 | struct compound_hdr hdr = { | |
66cc0429 | 2069 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2070 | }; |
1da177e4 LT |
2071 | |
2072 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2073 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2074 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2075 | encode_putfh(&xdr, args->fh, &hdr); |
2076 | encode_locku(&xdr, args, &hdr); | |
d017931c | 2077 | encode_nops(&hdr); |
cf8cdbe5 | 2078 | return 0; |
1da177e4 LT |
2079 | } |
2080 | ||
d3c7b7cc TM |
2081 | static int nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, __be32 *p, struct nfs_release_lockowner_args *args) |
2082 | { | |
2083 | struct xdr_stream xdr; | |
2084 | struct compound_hdr hdr = { | |
2085 | .minorversion = 0, | |
2086 | }; | |
2087 | ||
2088 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2089 | encode_compound_hdr(&xdr, req, &hdr); | |
2090 | encode_release_lockowner(&xdr, &args->lock_owner, &hdr); | |
2091 | encode_nops(&hdr); | |
2092 | return 0; | |
2093 | } | |
2094 | ||
1da177e4 LT |
2095 | /* |
2096 | * Encode a READLINK request | |
2097 | */ | |
8687b63a | 2098 | static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) |
1da177e4 LT |
2099 | { |
2100 | struct xdr_stream xdr; | |
2101 | struct compound_hdr hdr = { | |
66cc0429 | 2102 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2103 | }; |
1da177e4 LT |
2104 | |
2105 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2106 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2107 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2108 | encode_putfh(&xdr, args->fh, &hdr); |
2109 | encode_readlink(&xdr, args, req, &hdr); | |
e3a535e1 | 2110 | |
28f56694 | 2111 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
e3a535e1 | 2112 | args->pgbase, args->pglen); |
d017931c | 2113 | encode_nops(&hdr); |
cf8cdbe5 | 2114 | return 0; |
1da177e4 LT |
2115 | } |
2116 | ||
2117 | /* | |
2118 | * Encode a READDIR request | |
2119 | */ | |
8687b63a | 2120 | static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) |
1da177e4 LT |
2121 | { |
2122 | struct xdr_stream xdr; | |
2123 | struct compound_hdr hdr = { | |
66cc0429 | 2124 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2125 | }; |
1da177e4 LT |
2126 | |
2127 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2128 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2129 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2130 | encode_putfh(&xdr, args->fh, &hdr); |
2131 | encode_readdir(&xdr, args, req, &hdr); | |
d6ac02df | 2132 | |
28f56694 | 2133 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
d6ac02df TM |
2134 | args->pgbase, args->count); |
2135 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", | |
28f56694 | 2136 | __func__, hdr.replen << 2, args->pages, |
d6ac02df | 2137 | args->pgbase, args->count); |
d017931c | 2138 | encode_nops(&hdr); |
cf8cdbe5 | 2139 | return 0; |
1da177e4 LT |
2140 | } |
2141 | ||
2142 | /* | |
2143 | * Encode a READ request | |
2144 | */ | |
8687b63a | 2145 | static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) |
1da177e4 | 2146 | { |
1da177e4 LT |
2147 | struct xdr_stream xdr; |
2148 | struct compound_hdr hdr = { | |
66cc0429 | 2149 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2150 | }; |
1da177e4 LT |
2151 | |
2152 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2153 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2154 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2155 | encode_putfh(&xdr, args->fh, &hdr); |
2156 | encode_read(&xdr, args, &hdr); | |
1da177e4 | 2157 | |
28f56694 | 2158 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, |
1da177e4 | 2159 | args->pages, args->pgbase, args->count); |
4f22ccc3 | 2160 | req->rq_rcv_buf.flags |= XDRBUF_READ; |
d017931c | 2161 | encode_nops(&hdr); |
cf8cdbe5 | 2162 | return 0; |
1da177e4 LT |
2163 | } |
2164 | ||
2165 | /* | |
2166 | * Encode an SETATTR request | |
2167 | */ | |
8687b63a | 2168 | static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) |
1da177e4 | 2169 | { |
05d564fe AA |
2170 | struct xdr_stream xdr; |
2171 | struct compound_hdr hdr = { | |
66cc0429 | 2172 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 2173 | }; |
05d564fe AA |
2174 | |
2175 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2176 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2177 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2178 | encode_putfh(&xdr, args->fh, &hdr); |
2179 | encode_setattr(&xdr, args, args->server, &hdr); | |
2180 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2181 | encode_nops(&hdr); |
cf8cdbe5 | 2182 | return 0; |
1da177e4 LT |
2183 | } |
2184 | ||
029d105e BF |
2185 | /* |
2186 | * Encode a GETACL request | |
2187 | */ | |
2188 | static int | |
8687b63a | 2189 | nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, |
029d105e BF |
2190 | struct nfs_getaclargs *args) |
2191 | { | |
2192 | struct xdr_stream xdr; | |
029d105e | 2193 | struct compound_hdr hdr = { |
66cc0429 | 2194 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
029d105e | 2195 | }; |
28f56694 | 2196 | uint32_t replen; |
029d105e BF |
2197 | |
2198 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2199 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2200 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 | 2201 | encode_putfh(&xdr, args->fh, &hdr); |
d327cf74 | 2202 | replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1; |
cf8cdbe5 AA |
2203 | encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); |
2204 | ||
28f56694 | 2205 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, |
029d105e | 2206 | args->acl_pages, args->acl_pgbase, args->acl_len); |
d017931c | 2207 | encode_nops(&hdr); |
cf8cdbe5 | 2208 | return 0; |
029d105e BF |
2209 | } |
2210 | ||
1da177e4 LT |
2211 | /* |
2212 | * Encode a WRITE request | |
2213 | */ | |
8687b63a | 2214 | static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
2215 | { |
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_write(&xdr, args, &hdr); | |
4f22ccc3 | 2226 | req->rq_snd_buf.flags |= XDRBUF_WRITE; |
cf8cdbe5 | 2227 | encode_getfattr(&xdr, args->bitmask, &hdr); |
d017931c | 2228 | encode_nops(&hdr); |
cf8cdbe5 | 2229 | return 0; |
1da177e4 LT |
2230 | } |
2231 | ||
2232 | /* | |
2233 | * a COMMIT request | |
2234 | */ | |
8687b63a | 2235 | static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
2236 | { |
2237 | struct xdr_stream xdr; | |
2238 | struct compound_hdr hdr = { | |
66cc0429 | 2239 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2240 | }; |
1da177e4 LT |
2241 | |
2242 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2243 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2244 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2245 | encode_putfh(&xdr, args->fh, &hdr); |
2246 | encode_commit(&xdr, args, &hdr); | |
2247 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2248 | encode_nops(&hdr); |
cf8cdbe5 | 2249 | return 0; |
1da177e4 LT |
2250 | } |
2251 | ||
2252 | /* | |
2253 | * FSINFO request | |
2254 | */ | |
8687b63a | 2255 | static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_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); |
cf8cdbe5 AA |
2265 | encode_putfh(&xdr, args->fh, &hdr); |
2266 | encode_fsinfo(&xdr, args->bitmask, &hdr); | |
d017931c | 2267 | encode_nops(&hdr); |
cf8cdbe5 | 2268 | return 0; |
1da177e4 LT |
2269 | } |
2270 | ||
2271 | /* | |
2272 | * a PATHCONF request | |
2273 | */ | |
8687b63a | 2274 | static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) |
1da177e4 | 2275 | { |
1da177e4 LT |
2276 | struct xdr_stream xdr; |
2277 | struct compound_hdr hdr = { | |
66cc0429 | 2278 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2279 | }; |
1da177e4 LT |
2280 | |
2281 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2282 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2283 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2284 | encode_putfh(&xdr, args->fh, &hdr); |
2285 | encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], | |
2286 | &hdr); | |
d017931c | 2287 | encode_nops(&hdr); |
cf8cdbe5 | 2288 | return 0; |
1da177e4 LT |
2289 | } |
2290 | ||
2291 | /* | |
2292 | * a STATFS request | |
2293 | */ | |
8687b63a | 2294 | static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) |
1da177e4 | 2295 | { |
1da177e4 LT |
2296 | struct xdr_stream xdr; |
2297 | struct compound_hdr hdr = { | |
66cc0429 | 2298 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2299 | }; |
1da177e4 LT |
2300 | |
2301 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2302 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2303 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2304 | encode_putfh(&xdr, args->fh, &hdr); |
2305 | encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], | |
2306 | args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); | |
d017931c | 2307 | encode_nops(&hdr); |
cf8cdbe5 | 2308 | return 0; |
1da177e4 LT |
2309 | } |
2310 | ||
2311 | /* | |
2312 | * GETATTR_BITMAP request | |
2313 | */ | |
43652ad5 BH |
2314 | static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, |
2315 | struct nfs4_server_caps_arg *args) | |
1da177e4 LT |
2316 | { |
2317 | struct xdr_stream xdr; | |
2318 | struct compound_hdr hdr = { | |
66cc0429 | 2319 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2320 | }; |
1da177e4 LT |
2321 | |
2322 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2323 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2324 | encode_sequence(&xdr, &args->seq_args, &hdr); |
43652ad5 | 2325 | encode_putfh(&xdr, args->fhandle, &hdr); |
cf8cdbe5 AA |
2326 | encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| |
2327 | FATTR4_WORD0_LINK_SUPPORT| | |
2328 | FATTR4_WORD0_SYMLINK_SUPPORT| | |
2329 | FATTR4_WORD0_ACLSUPPORT, &hdr); | |
d017931c | 2330 | encode_nops(&hdr); |
cf8cdbe5 | 2331 | return 0; |
1da177e4 LT |
2332 | } |
2333 | ||
2334 | /* | |
2335 | * a RENEW request | |
2336 | */ | |
8687b63a | 2337 | static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2338 | { |
2339 | struct xdr_stream xdr; | |
2340 | struct compound_hdr hdr = { | |
d017931c | 2341 | .nops = 0, |
1da177e4 LT |
2342 | }; |
2343 | ||
2344 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2345 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 2346 | encode_renew(&xdr, clp, &hdr); |
d017931c | 2347 | encode_nops(&hdr); |
cf8cdbe5 | 2348 | return 0; |
1da177e4 LT |
2349 | } |
2350 | ||
2351 | /* | |
2352 | * a SETCLIENTID request | |
2353 | */ | |
8687b63a | 2354 | static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) |
1da177e4 LT |
2355 | { |
2356 | struct xdr_stream xdr; | |
2357 | struct compound_hdr hdr = { | |
d017931c | 2358 | .nops = 0, |
1da177e4 LT |
2359 | }; |
2360 | ||
2361 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2362 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 2363 | encode_setclientid(&xdr, sc, &hdr); |
d017931c | 2364 | encode_nops(&hdr); |
cf8cdbe5 | 2365 | return 0; |
1da177e4 LT |
2366 | } |
2367 | ||
2368 | /* | |
2369 | * a SETCLIENTID_CONFIRM request | |
2370 | */ | |
bb8b27e5 | 2371 | static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid_res *arg) |
1da177e4 LT |
2372 | { |
2373 | struct xdr_stream xdr; | |
2374 | struct compound_hdr hdr = { | |
d017931c | 2375 | .nops = 0, |
1da177e4 LT |
2376 | }; |
2377 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
1da177e4 LT |
2378 | |
2379 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2380 | encode_compound_hdr(&xdr, req, &hdr); |
bb8b27e5 | 2381 | encode_setclientid_confirm(&xdr, arg, &hdr); |
cf8cdbe5 AA |
2382 | encode_putrootfh(&xdr, &hdr); |
2383 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
d017931c | 2384 | encode_nops(&hdr); |
cf8cdbe5 | 2385 | return 0; |
1da177e4 LT |
2386 | } |
2387 | ||
2388 | /* | |
2389 | * DELEGRETURN request | |
2390 | */ | |
8687b63a | 2391 | static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) |
1da177e4 LT |
2392 | { |
2393 | struct xdr_stream xdr; | |
2394 | struct compound_hdr hdr = { | |
66cc0429 | 2395 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2396 | }; |
1da177e4 LT |
2397 | |
2398 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2399 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2400 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2401 | encode_putfh(&xdr, args->fhandle, &hdr); |
2402 | encode_delegreturn(&xdr, args->stateid, &hdr); | |
2403 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2404 | encode_nops(&hdr); |
cf8cdbe5 | 2405 | return 0; |
1da177e4 LT |
2406 | } |
2407 | ||
683b57b4 TM |
2408 | /* |
2409 | * Encode FS_LOCATIONS request | |
2410 | */ | |
8687b63a | 2411 | static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) |
683b57b4 TM |
2412 | { |
2413 | struct xdr_stream xdr; | |
2414 | struct compound_hdr hdr = { | |
66cc0429 | 2415 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
683b57b4 | 2416 | }; |
28f56694 | 2417 | uint32_t replen; |
683b57b4 TM |
2418 | |
2419 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2420 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2421 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2422 | encode_putfh(&xdr, args->dir_fh, &hdr); |
2423 | encode_lookup(&xdr, args->name, &hdr); | |
28f56694 | 2424 | replen = hdr.replen; /* get the attribute into args->page */ |
cf8cdbe5 AA |
2425 | encode_fs_locations(&xdr, args->bitmask, &hdr); |
2426 | ||
28f56694 | 2427 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, |
683b57b4 | 2428 | 0, PAGE_SIZE); |
d017931c | 2429 | encode_nops(&hdr); |
cf8cdbe5 | 2430 | return 0; |
683b57b4 TM |
2431 | } |
2432 | ||
99fe60d0 BH |
2433 | #if defined(CONFIG_NFS_V4_1) |
2434 | /* | |
2435 | * EXCHANGE_ID request | |
2436 | */ | |
2437 | static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, | |
2438 | struct nfs41_exchange_id_args *args) | |
2439 | { | |
2440 | struct xdr_stream xdr; | |
2441 | struct compound_hdr hdr = { | |
a4432345 | 2442 | .minorversion = args->client->cl_mvops->minor_version, |
99fe60d0 BH |
2443 | }; |
2444 | ||
2445 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2446 | encode_compound_hdr(&xdr, req, &hdr); | |
2447 | encode_exchange_id(&xdr, args, &hdr); | |
2448 | encode_nops(&hdr); | |
2449 | return 0; | |
2450 | } | |
2050f0cc | 2451 | |
fc931582 AA |
2452 | /* |
2453 | * a CREATE_SESSION request | |
2454 | */ | |
2455 | static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, | |
2456 | struct nfs41_create_session_args *args) | |
2457 | { | |
2458 | struct xdr_stream xdr; | |
2459 | struct compound_hdr hdr = { | |
a4432345 | 2460 | .minorversion = args->client->cl_mvops->minor_version, |
fc931582 AA |
2461 | }; |
2462 | ||
2463 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2464 | encode_compound_hdr(&xdr, req, &hdr); | |
2465 | encode_create_session(&xdr, args, &hdr); | |
2466 | encode_nops(&hdr); | |
2467 | return 0; | |
2468 | } | |
2469 | ||
0f3e66c6 AA |
2470 | /* |
2471 | * a DESTROY_SESSION request | |
2472 | */ | |
2473 | static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, | |
2474 | struct nfs4_session *session) | |
2475 | { | |
2476 | struct xdr_stream xdr; | |
2477 | struct compound_hdr hdr = { | |
a4432345 | 2478 | .minorversion = session->clp->cl_mvops->minor_version, |
0f3e66c6 AA |
2479 | }; |
2480 | ||
2481 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2482 | encode_compound_hdr(&xdr, req, &hdr); | |
2483 | encode_destroy_session(&xdr, session, &hdr); | |
2484 | encode_nops(&hdr); | |
2485 | return 0; | |
2486 | } | |
2487 | ||
fc01cea9 AA |
2488 | /* |
2489 | * a SEQUENCE request | |
2490 | */ | |
2491 | static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, | |
2492 | struct nfs4_sequence_args *args) | |
2493 | { | |
2494 | struct xdr_stream xdr; | |
2495 | struct compound_hdr hdr = { | |
2496 | .minorversion = nfs4_xdr_minorversion(args), | |
2497 | }; | |
2498 | ||
2499 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2500 | encode_compound_hdr(&xdr, req, &hdr); | |
2501 | encode_sequence(&xdr, args, &hdr); | |
2502 | encode_nops(&hdr); | |
2503 | return 0; | |
2504 | } | |
2505 | ||
2050f0cc AA |
2506 | /* |
2507 | * a GET_LEASE_TIME request | |
2508 | */ | |
2509 | static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, | |
2510 | struct nfs4_get_lease_time_args *args) | |
2511 | { | |
2512 | struct xdr_stream xdr; | |
2513 | struct compound_hdr hdr = { | |
2514 | .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), | |
2515 | }; | |
2516 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
2517 | ||
2518 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2519 | encode_compound_hdr(&xdr, req, &hdr); | |
2520 | encode_sequence(&xdr, &args->la_seq_args, &hdr); | |
2521 | encode_putrootfh(&xdr, &hdr); | |
2522 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
2523 | encode_nops(&hdr); | |
2524 | return 0; | |
2525 | } | |
18019753 RL |
2526 | |
2527 | /* | |
2528 | * a RECLAIM_COMPLETE request | |
2529 | */ | |
2530 | static int nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, uint32_t *p, | |
2531 | struct nfs41_reclaim_complete_args *args) | |
2532 | { | |
2533 | struct xdr_stream xdr; | |
2534 | struct compound_hdr hdr = { | |
2535 | .minorversion = nfs4_xdr_minorversion(&args->seq_args) | |
2536 | }; | |
2537 | ||
2538 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2539 | encode_compound_hdr(&xdr, req, &hdr); | |
2540 | encode_sequence(&xdr, &args->seq_args, &hdr); | |
2541 | encode_reclaim_complete(&xdr, args, &hdr); | |
2542 | encode_nops(&hdr); | |
2543 | return 0; | |
2544 | } | |
2545 | ||
99fe60d0 BH |
2546 | #endif /* CONFIG_NFS_V4_1 */ |
2547 | ||
686841b3 BH |
2548 | static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) |
2549 | { | |
2550 | dprintk("nfs: %s: prematurely hit end of receive buffer. " | |
2551 | "Remaining buffer length is %tu words.\n", | |
2552 | func, xdr->end - xdr->p); | |
2553 | } | |
1da177e4 | 2554 | |
683b57b4 | 2555 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
1da177e4 | 2556 | { |
8687b63a | 2557 | __be32 *p; |
1da177e4 | 2558 | |
c0eae66e BH |
2559 | p = xdr_inline_decode(xdr, 4); |
2560 | if (unlikely(!p)) | |
2561 | goto out_overflow; | |
cccddf4f | 2562 | *len = be32_to_cpup(p); |
c0eae66e BH |
2563 | p = xdr_inline_decode(xdr, *len); |
2564 | if (unlikely(!p)) | |
2565 | goto out_overflow; | |
1da177e4 LT |
2566 | *string = (char *)p; |
2567 | return 0; | |
c0eae66e BH |
2568 | out_overflow: |
2569 | print_overflow_msg(__func__, xdr); | |
2570 | return -EIO; | |
1da177e4 LT |
2571 | } |
2572 | ||
2573 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
2574 | { | |
8687b63a | 2575 | __be32 *p; |
1da177e4 | 2576 | |
c0eae66e BH |
2577 | p = xdr_inline_decode(xdr, 8); |
2578 | if (unlikely(!p)) | |
2579 | goto out_overflow; | |
6f723f77 | 2580 | hdr->status = be32_to_cpup(p++); |
cccddf4f | 2581 | hdr->taglen = be32_to_cpup(p); |
6c0195a4 | 2582 | |
c0eae66e BH |
2583 | p = xdr_inline_decode(xdr, hdr->taglen + 4); |
2584 | if (unlikely(!p)) | |
2585 | goto out_overflow; | |
1da177e4 LT |
2586 | hdr->tag = (char *)p; |
2587 | p += XDR_QUADLEN(hdr->taglen); | |
cccddf4f | 2588 | hdr->nops = be32_to_cpup(p); |
aadf6152 BH |
2589 | if (unlikely(hdr->nops < 1)) |
2590 | return nfs4_stat_to_errno(hdr->status); | |
1da177e4 | 2591 | return 0; |
c0eae66e BH |
2592 | out_overflow: |
2593 | print_overflow_msg(__func__, xdr); | |
2594 | return -EIO; | |
1da177e4 LT |
2595 | } |
2596 | ||
2597 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) | |
2598 | { | |
8687b63a | 2599 | __be32 *p; |
1da177e4 LT |
2600 | uint32_t opnum; |
2601 | int32_t nfserr; | |
2602 | ||
c0eae66e BH |
2603 | p = xdr_inline_decode(xdr, 8); |
2604 | if (unlikely(!p)) | |
2605 | goto out_overflow; | |
6f723f77 | 2606 | opnum = be32_to_cpup(p++); |
1da177e4 | 2607 | if (opnum != expected) { |
fe82a183 CL |
2608 | dprintk("nfs: Server returned operation" |
2609 | " %d but we issued a request for %d\n", | |
1da177e4 LT |
2610 | opnum, expected); |
2611 | return -EIO; | |
2612 | } | |
cccddf4f | 2613 | nfserr = be32_to_cpup(p); |
1da177e4 | 2614 | if (nfserr != NFS_OK) |
856dff3d | 2615 | return nfs4_stat_to_errno(nfserr); |
1da177e4 | 2616 | return 0; |
c0eae66e BH |
2617 | out_overflow: |
2618 | print_overflow_msg(__func__, xdr); | |
2619 | return -EIO; | |
1da177e4 LT |
2620 | } |
2621 | ||
2622 | /* Dummy routine */ | |
adfa6f98 | 2623 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
1da177e4 | 2624 | { |
8687b63a | 2625 | __be32 *p; |
683b57b4 | 2626 | unsigned int strlen; |
1da177e4 LT |
2627 | char *str; |
2628 | ||
c0eae66e BH |
2629 | p = xdr_inline_decode(xdr, 12); |
2630 | if (likely(p)) | |
2631 | return decode_opaque_inline(xdr, &strlen, &str); | |
2632 | print_overflow_msg(__func__, xdr); | |
2633 | return -EIO; | |
1da177e4 LT |
2634 | } |
2635 | ||
2636 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) | |
2637 | { | |
8687b63a AV |
2638 | uint32_t bmlen; |
2639 | __be32 *p; | |
1da177e4 | 2640 | |
c0eae66e BH |
2641 | p = xdr_inline_decode(xdr, 4); |
2642 | if (unlikely(!p)) | |
2643 | goto out_overflow; | |
cccddf4f | 2644 | bmlen = be32_to_cpup(p); |
1da177e4 LT |
2645 | |
2646 | bitmap[0] = bitmap[1] = 0; | |
c0eae66e BH |
2647 | p = xdr_inline_decode(xdr, (bmlen << 2)); |
2648 | if (unlikely(!p)) | |
2649 | goto out_overflow; | |
1da177e4 | 2650 | if (bmlen > 0) { |
6f723f77 | 2651 | bitmap[0] = be32_to_cpup(p++); |
1da177e4 | 2652 | if (bmlen > 1) |
cccddf4f | 2653 | bitmap[1] = be32_to_cpup(p); |
1da177e4 LT |
2654 | } |
2655 | return 0; | |
c0eae66e BH |
2656 | out_overflow: |
2657 | print_overflow_msg(__func__, xdr); | |
2658 | return -EIO; | |
1da177e4 LT |
2659 | } |
2660 | ||
8687b63a | 2661 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
1da177e4 | 2662 | { |
8687b63a | 2663 | __be32 *p; |
1da177e4 | 2664 | |
c0eae66e BH |
2665 | p = xdr_inline_decode(xdr, 4); |
2666 | if (unlikely(!p)) | |
2667 | goto out_overflow; | |
cccddf4f | 2668 | *attrlen = be32_to_cpup(p); |
1da177e4 LT |
2669 | *savep = xdr->p; |
2670 | return 0; | |
c0eae66e BH |
2671 | out_overflow: |
2672 | print_overflow_msg(__func__, xdr); | |
2673 | return -EIO; | |
1da177e4 LT |
2674 | } |
2675 | ||
2676 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) | |
2677 | { | |
2678 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { | |
2679 | decode_attr_bitmap(xdr, bitmask); | |
2680 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; | |
2681 | } else | |
2682 | bitmask[0] = bitmask[1] = 0; | |
44109241 | 2683 | dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); |
1da177e4 LT |
2684 | return 0; |
2685 | } | |
2686 | ||
2687 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) | |
2688 | { | |
8687b63a | 2689 | __be32 *p; |
409924e4 | 2690 | int ret = 0; |
1da177e4 LT |
2691 | |
2692 | *type = 0; | |
2693 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) | |
2694 | return -EIO; | |
2695 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { | |
c0eae66e BH |
2696 | p = xdr_inline_decode(xdr, 4); |
2697 | if (unlikely(!p)) | |
2698 | goto out_overflow; | |
cccddf4f | 2699 | *type = be32_to_cpup(p); |
1da177e4 | 2700 | if (*type < NF4REG || *type > NF4NAMEDATTR) { |
3110ff80 | 2701 | dprintk("%s: bad type %d\n", __func__, *type); |
1da177e4 LT |
2702 | return -EIO; |
2703 | } | |
2704 | bitmap[0] &= ~FATTR4_WORD0_TYPE; | |
409924e4 | 2705 | ret = NFS_ATTR_FATTR_TYPE; |
1da177e4 | 2706 | } |
bca79478 | 2707 | dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); |
409924e4 | 2708 | return ret; |
c0eae66e BH |
2709 | out_overflow: |
2710 | print_overflow_msg(__func__, xdr); | |
2711 | return -EIO; | |
1da177e4 LT |
2712 | } |
2713 | ||
2714 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) | |
2715 | { | |
8687b63a | 2716 | __be32 *p; |
409924e4 | 2717 | int ret = 0; |
1da177e4 LT |
2718 | |
2719 | *change = 0; | |
2720 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) | |
2721 | return -EIO; | |
2722 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { | |
c0eae66e BH |
2723 | p = xdr_inline_decode(xdr, 8); |
2724 | if (unlikely(!p)) | |
2725 | goto out_overflow; | |
cccddf4f | 2726 | xdr_decode_hyper(p, change); |
1da177e4 | 2727 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; |
409924e4 | 2728 | ret = NFS_ATTR_FATTR_CHANGE; |
1da177e4 | 2729 | } |
3110ff80 | 2730 | dprintk("%s: change attribute=%Lu\n", __func__, |
1da177e4 | 2731 | (unsigned long long)*change); |
409924e4 | 2732 | return ret; |
c0eae66e BH |
2733 | out_overflow: |
2734 | print_overflow_msg(__func__, xdr); | |
2735 | return -EIO; | |
1da177e4 LT |
2736 | } |
2737 | ||
2738 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) | |
2739 | { | |
8687b63a | 2740 | __be32 *p; |
409924e4 | 2741 | int ret = 0; |
1da177e4 LT |
2742 | |
2743 | *size = 0; | |
2744 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) | |
2745 | return -EIO; | |
2746 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { | |
c0eae66e BH |
2747 | p = xdr_inline_decode(xdr, 8); |
2748 | if (unlikely(!p)) | |
2749 | goto out_overflow; | |
cccddf4f | 2750 | xdr_decode_hyper(p, size); |
1da177e4 | 2751 | bitmap[0] &= ~FATTR4_WORD0_SIZE; |
409924e4 | 2752 | ret = NFS_ATTR_FATTR_SIZE; |
1da177e4 | 2753 | } |
3110ff80 | 2754 | dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); |
409924e4 | 2755 | return ret; |
c0eae66e BH |
2756 | out_overflow: |
2757 | print_overflow_msg(__func__, xdr); | |
2758 | return -EIO; | |
1da177e4 LT |
2759 | } |
2760 | ||
2761 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2762 | { | |
8687b63a | 2763 | __be32 *p; |
1da177e4 LT |
2764 | |
2765 | *res = 0; | |
2766 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) | |
2767 | return -EIO; | |
2768 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { | |
c0eae66e BH |
2769 | p = xdr_inline_decode(xdr, 4); |
2770 | if (unlikely(!p)) | |
2771 | goto out_overflow; | |
cccddf4f | 2772 | *res = be32_to_cpup(p); |
1da177e4 LT |
2773 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; |
2774 | } | |
3110ff80 | 2775 | dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 | 2776 | return 0; |
c0eae66e BH |
2777 | out_overflow: |
2778 | print_overflow_msg(__func__, xdr); | |
2779 | return -EIO; | |
1da177e4 LT |
2780 | } |
2781 | ||
2782 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2783 | { | |
8687b63a | 2784 | __be32 *p; |
1da177e4 LT |
2785 | |
2786 | *res = 0; | |
2787 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) | |
2788 | return -EIO; | |
2789 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { | |
c0eae66e BH |
2790 | p = xdr_inline_decode(xdr, 4); |
2791 | if (unlikely(!p)) | |
2792 | goto out_overflow; | |
cccddf4f | 2793 | *res = be32_to_cpup(p); |
1da177e4 LT |
2794 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; |
2795 | } | |
3110ff80 | 2796 | dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 | 2797 | return 0; |
c0eae66e BH |
2798 | out_overflow: |
2799 | print_overflow_msg(__func__, xdr); | |
2800 | return -EIO; | |
1da177e4 LT |
2801 | } |
2802 | ||
8b4bdcf8 | 2803 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
1da177e4 | 2804 | { |
8687b63a | 2805 | __be32 *p; |
409924e4 | 2806 | int ret = 0; |
1da177e4 LT |
2807 | |
2808 | fsid->major = 0; | |
2809 | fsid->minor = 0; | |
2810 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) | |
2811 | return -EIO; | |
2812 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { | |
c0eae66e BH |
2813 | p = xdr_inline_decode(xdr, 16); |
2814 | if (unlikely(!p)) | |
2815 | goto out_overflow; | |
3ceb4dbb | 2816 | p = xdr_decode_hyper(p, &fsid->major); |
cccddf4f | 2817 | xdr_decode_hyper(p, &fsid->minor); |
1da177e4 | 2818 | bitmap[0] &= ~FATTR4_WORD0_FSID; |
409924e4 | 2819 | ret = NFS_ATTR_FATTR_FSID; |
1da177e4 | 2820 | } |
3110ff80 | 2821 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, |
1da177e4 LT |
2822 | (unsigned long long)fsid->major, |
2823 | (unsigned long long)fsid->minor); | |
409924e4 | 2824 | return ret; |
c0eae66e BH |
2825 | out_overflow: |
2826 | print_overflow_msg(__func__, xdr); | |
2827 | return -EIO; | |
1da177e4 LT |
2828 | } |
2829 | ||
2830 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2831 | { | |
8687b63a | 2832 | __be32 *p; |
1da177e4 LT |
2833 | |
2834 | *res = 60; | |
2835 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) | |
2836 | return -EIO; | |
2837 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { | |
c0eae66e BH |
2838 | p = xdr_inline_decode(xdr, 4); |
2839 | if (unlikely(!p)) | |
2840 | goto out_overflow; | |
cccddf4f | 2841 | *res = be32_to_cpup(p); |
1da177e4 LT |
2842 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; |
2843 | } | |
3110ff80 | 2844 | dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); |
1da177e4 | 2845 | return 0; |
c0eae66e BH |
2846 | out_overflow: |
2847 | print_overflow_msg(__func__, xdr); | |
2848 | return -EIO; | |
1da177e4 LT |
2849 | } |
2850 | ||
2851 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2852 | { | |
8687b63a | 2853 | __be32 *p; |
1da177e4 LT |
2854 | |
2855 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; | |
2856 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) | |
2857 | return -EIO; | |
2858 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { | |
c0eae66e BH |
2859 | p = xdr_inline_decode(xdr, 4); |
2860 | if (unlikely(!p)) | |
2861 | goto out_overflow; | |
cccddf4f | 2862 | *res = be32_to_cpup(p); |
1da177e4 LT |
2863 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; |
2864 | } | |
3110ff80 | 2865 | dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); |
1da177e4 | 2866 | return 0; |
c0eae66e BH |
2867 | out_overflow: |
2868 | print_overflow_msg(__func__, xdr); | |
2869 | return -EIO; | |
1da177e4 LT |
2870 | } |
2871 | ||
2872 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) | |
2873 | { | |
8687b63a | 2874 | __be32 *p; |
409924e4 | 2875 | int ret = 0; |
1da177e4 LT |
2876 | |
2877 | *fileid = 0; | |
2878 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) | |
2879 | return -EIO; | |
2880 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { | |
c0eae66e BH |
2881 | p = xdr_inline_decode(xdr, 8); |
2882 | if (unlikely(!p)) | |
2883 | goto out_overflow; | |
cccddf4f | 2884 | xdr_decode_hyper(p, fileid); |
1da177e4 | 2885 | bitmap[0] &= ~FATTR4_WORD0_FILEID; |
409924e4 | 2886 | ret = NFS_ATTR_FATTR_FILEID; |
1da177e4 | 2887 | } |
3110ff80 | 2888 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2889 | return ret; |
c0eae66e BH |
2890 | out_overflow: |
2891 | print_overflow_msg(__func__, xdr); | |
2892 | return -EIO; | |
1da177e4 LT |
2893 | } |
2894 | ||
99baf625 MN |
2895 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
2896 | { | |
8687b63a | 2897 | __be32 *p; |
409924e4 | 2898 | int ret = 0; |
99baf625 MN |
2899 | |
2900 | *fileid = 0; | |
2901 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) | |
2902 | return -EIO; | |
2903 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { | |
c0eae66e BH |
2904 | p = xdr_inline_decode(xdr, 8); |
2905 | if (unlikely(!p)) | |
2906 | goto out_overflow; | |
cccddf4f | 2907 | xdr_decode_hyper(p, fileid); |
99baf625 | 2908 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; |
409924e4 | 2909 | ret = NFS_ATTR_FATTR_FILEID; |
99baf625 | 2910 | } |
3110ff80 | 2911 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2912 | return ret; |
c0eae66e BH |
2913 | out_overflow: |
2914 | print_overflow_msg(__func__, xdr); | |
2915 | return -EIO; | |
99baf625 MN |
2916 | } |
2917 | ||
1da177e4 LT |
2918 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2919 | { | |
8687b63a | 2920 | __be32 *p; |
1da177e4 LT |
2921 | int status = 0; |
2922 | ||
2923 | *res = 0; | |
2924 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) | |
2925 | return -EIO; | |
2926 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { | |
c0eae66e BH |
2927 | p = xdr_inline_decode(xdr, 8); |
2928 | if (unlikely(!p)) | |
2929 | goto out_overflow; | |
cccddf4f | 2930 | xdr_decode_hyper(p, res); |
1da177e4 LT |
2931 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; |
2932 | } | |
3110ff80 | 2933 | dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 2934 | return status; |
c0eae66e BH |
2935 | out_overflow: |
2936 | print_overflow_msg(__func__, xdr); | |
2937 | return -EIO; | |
1da177e4 LT |
2938 | } |
2939 | ||
2940 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2941 | { | |
8687b63a | 2942 | __be32 *p; |
1da177e4 LT |
2943 | int status = 0; |
2944 | ||
2945 | *res = 0; | |
2946 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) | |
2947 | return -EIO; | |
2948 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { | |
c0eae66e BH |
2949 | p = xdr_inline_decode(xdr, 8); |
2950 | if (unlikely(!p)) | |
2951 | goto out_overflow; | |
cccddf4f | 2952 | xdr_decode_hyper(p, res); |
1da177e4 LT |
2953 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; |
2954 | } | |
3110ff80 | 2955 | dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 2956 | return status; |
c0eae66e BH |
2957 | out_overflow: |
2958 | print_overflow_msg(__func__, xdr); | |
2959 | return -EIO; | |
1da177e4 LT |
2960 | } |
2961 | ||
2962 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2963 | { | |
8687b63a | 2964 | __be32 *p; |
1da177e4 LT |
2965 | int status = 0; |
2966 | ||
2967 | *res = 0; | |
2968 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) | |
2969 | return -EIO; | |
2970 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { | |
c0eae66e BH |
2971 | p = xdr_inline_decode(xdr, 8); |
2972 | if (unlikely(!p)) | |
2973 | goto out_overflow; | |
cccddf4f | 2974 | xdr_decode_hyper(p, res); |
1da177e4 LT |
2975 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; |
2976 | } | |
3110ff80 | 2977 | dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 2978 | return status; |
c0eae66e BH |
2979 | out_overflow: |
2980 | print_overflow_msg(__func__, xdr); | |
2981 | return -EIO; | |
1da177e4 LT |
2982 | } |
2983 | ||
7aaa0b3b MN |
2984 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
2985 | { | |
464ad6b1 | 2986 | u32 n; |
8687b63a | 2987 | __be32 *p; |
7aaa0b3b MN |
2988 | int status = 0; |
2989 | ||
c0eae66e BH |
2990 | p = xdr_inline_decode(xdr, 4); |
2991 | if (unlikely(!p)) | |
2992 | goto out_overflow; | |
cccddf4f | 2993 | n = be32_to_cpup(p); |
33a43f28 AA |
2994 | if (n == 0) |
2995 | goto root_path; | |
7aaa0b3b MN |
2996 | dprintk("path "); |
2997 | path->ncomponents = 0; | |
2998 | while (path->ncomponents < n) { | |
2999 | struct nfs4_string *component = &path->components[path->ncomponents]; | |
3000 | status = decode_opaque_inline(xdr, &component->len, &component->data); | |
3001 | if (unlikely(status != 0)) | |
3002 | goto out_eio; | |
3003 | if (path->ncomponents != n) | |
3004 | dprintk("/"); | |
3005 | dprintk("%s", component->data); | |
3006 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) | |
3007 | path->ncomponents++; | |
3008 | else { | |
3009 | dprintk("cannot parse %d components in path\n", n); | |
3010 | goto out_eio; | |
3011 | } | |
3012 | } | |
3013 | out: | |
3014 | dprintk("\n"); | |
3015 | return status; | |
33a43f28 AA |
3016 | root_path: |
3017 | /* a root pathname is sent as a zero component4 */ | |
3018 | path->ncomponents = 1; | |
3019 | path->components[0].len=0; | |
3020 | path->components[0].data=NULL; | |
3021 | dprintk("path /\n"); | |
3022 | goto out; | |
7aaa0b3b MN |
3023 | out_eio: |
3024 | dprintk(" status %d", status); | |
3025 | status = -EIO; | |
3026 | goto out; | |
c0eae66e BH |
3027 | out_overflow: |
3028 | print_overflow_msg(__func__, xdr); | |
3029 | return -EIO; | |
7aaa0b3b MN |
3030 | } |
3031 | ||
3032 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) | |
683b57b4 TM |
3033 | { |
3034 | int n; | |
8687b63a | 3035 | __be32 *p; |
683b57b4 TM |
3036 | int status = -EIO; |
3037 | ||
3038 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) | |
3039 | goto out; | |
3040 | status = 0; | |
3041 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) | |
3042 | goto out; | |
3110ff80 | 3043 | dprintk("%s: fsroot ", __func__); |
7aaa0b3b | 3044 | status = decode_pathname(xdr, &res->fs_path); |
683b57b4 TM |
3045 | if (unlikely(status != 0)) |
3046 | goto out; | |
c0eae66e BH |
3047 | p = xdr_inline_decode(xdr, 4); |
3048 | if (unlikely(!p)) | |
3049 | goto out_overflow; | |
cccddf4f | 3050 | n = be32_to_cpup(p); |
683b57b4 TM |
3051 | if (n <= 0) |
3052 | goto out_eio; | |
3053 | res->nlocations = 0; | |
3054 | while (res->nlocations < n) { | |
464ad6b1 | 3055 | u32 m; |
7aaa0b3b | 3056 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; |
683b57b4 | 3057 | |
c0eae66e BH |
3058 | p = xdr_inline_decode(xdr, 4); |
3059 | if (unlikely(!p)) | |
3060 | goto out_overflow; | |
cccddf4f | 3061 | m = be32_to_cpup(p); |
7aaa0b3b MN |
3062 | |
3063 | loc->nservers = 0; | |
3110ff80 | 3064 | dprintk("%s: servers ", __func__); |
7aaa0b3b MN |
3065 | while (loc->nservers < m) { |
3066 | struct nfs4_string *server = &loc->servers[loc->nservers]; | |
3067 | status = decode_opaque_inline(xdr, &server->len, &server->data); | |
3068 | if (unlikely(status != 0)) | |
3069 | goto out_eio; | |
3070 | dprintk("%s ", server->data); | |
3071 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) | |
3072 | loc->nservers++; | |
3073 | else { | |
464ad6b1 CL |
3074 | unsigned int i; |
3075 | dprintk("%s: using first %u of %u servers " | |
3076 | "returned for location %u\n", | |
3110ff80 | 3077 | __func__, |
464ad6b1 CL |
3078 | NFS4_FS_LOCATION_MAXSERVERS, |
3079 | m, res->nlocations); | |
7aaa0b3b | 3080 | for (i = loc->nservers; i < m; i++) { |
2e42c3e2 | 3081 | unsigned int len; |
7aaa0b3b MN |
3082 | char *data; |
3083 | status = decode_opaque_inline(xdr, &len, &data); | |
3084 | if (unlikely(status != 0)) | |
3085 | goto out_eio; | |
3086 | } | |
3087 | } | |
3088 | } | |
3089 | status = decode_pathname(xdr, &loc->rootpath); | |
683b57b4 TM |
3090 | if (unlikely(status != 0)) |
3091 | goto out_eio; | |
7aaa0b3b | 3092 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
683b57b4 TM |
3093 | res->nlocations++; |
3094 | } | |
409924e4 TM |
3095 | if (res->nlocations != 0) |
3096 | status = NFS_ATTR_FATTR_V4_REFERRAL; | |
683b57b4 | 3097 | out: |
3110ff80 | 3098 | dprintk("%s: fs_locations done, error = %d\n", __func__, status); |
683b57b4 | 3099 | return status; |
c0eae66e BH |
3100 | out_overflow: |
3101 | print_overflow_msg(__func__, xdr); | |
683b57b4 TM |
3102 | out_eio: |
3103 | status = -EIO; | |
3104 | goto out; | |
3105 | } | |
3106 | ||
1da177e4 LT |
3107 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
3108 | { | |
8687b63a | 3109 | __be32 *p; |
1da177e4 LT |
3110 | int status = 0; |
3111 | ||
3112 | *res = 0; | |
3113 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) | |
3114 | return -EIO; | |
3115 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { | |
c0eae66e BH |
3116 | p = xdr_inline_decode(xdr, 8); |
3117 | if (unlikely(!p)) | |
3118 | goto out_overflow; | |
cccddf4f | 3119 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3120 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; |
3121 | } | |
3110ff80 | 3122 | dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3123 | return status; |
c0eae66e BH |
3124 | out_overflow: |
3125 | print_overflow_msg(__func__, xdr); | |
3126 | return -EIO; | |
1da177e4 LT |
3127 | } |
3128 | ||
3129 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) | |
3130 | { | |
8687b63a | 3131 | __be32 *p; |
1da177e4 LT |
3132 | int status = 0; |
3133 | ||
3134 | *maxlink = 1; | |
3135 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) | |
3136 | return -EIO; | |
3137 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { | |
c0eae66e BH |
3138 | p = xdr_inline_decode(xdr, 4); |
3139 | if (unlikely(!p)) | |
3140 | goto out_overflow; | |
cccddf4f | 3141 | *maxlink = be32_to_cpup(p); |
1da177e4 LT |
3142 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; |
3143 | } | |
3110ff80 | 3144 | dprintk("%s: maxlink=%u\n", __func__, *maxlink); |
1da177e4 | 3145 | return status; |
c0eae66e BH |
3146 | out_overflow: |
3147 | print_overflow_msg(__func__, xdr); | |
3148 | return -EIO; | |
1da177e4 LT |
3149 | } |
3150 | ||
3151 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) | |
3152 | { | |
8687b63a | 3153 | __be32 *p; |
1da177e4 LT |
3154 | int status = 0; |
3155 | ||
3156 | *maxname = 1024; | |
3157 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) | |
3158 | return -EIO; | |
3159 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { | |
c0eae66e BH |
3160 | p = xdr_inline_decode(xdr, 4); |
3161 | if (unlikely(!p)) | |
3162 | goto out_overflow; | |
cccddf4f | 3163 | *maxname = be32_to_cpup(p); |
1da177e4 LT |
3164 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; |
3165 | } | |
3110ff80 | 3166 | dprintk("%s: maxname=%u\n", __func__, *maxname); |
1da177e4 | 3167 | return status; |
c0eae66e BH |
3168 | out_overflow: |
3169 | print_overflow_msg(__func__, xdr); | |
3170 | return -EIO; | |
1da177e4 LT |
3171 | } |
3172 | ||
3173 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
3174 | { | |
8687b63a | 3175 | __be32 *p; |
1da177e4 LT |
3176 | int status = 0; |
3177 | ||
3178 | *res = 1024; | |
3179 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) | |
3180 | return -EIO; | |
3181 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { | |
3182 | uint64_t maxread; | |
c0eae66e BH |
3183 | p = xdr_inline_decode(xdr, 8); |
3184 | if (unlikely(!p)) | |
3185 | goto out_overflow; | |
cccddf4f | 3186 | xdr_decode_hyper(p, &maxread); |
1da177e4 LT |
3187 | if (maxread > 0x7FFFFFFF) |
3188 | maxread = 0x7FFFFFFF; | |
3189 | *res = (uint32_t)maxread; | |
3190 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; | |
3191 | } | |
3110ff80 | 3192 | dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); |
1da177e4 | 3193 | return status; |
c0eae66e BH |
3194 | out_overflow: |
3195 | print_overflow_msg(__func__, xdr); | |
3196 | return -EIO; | |
1da177e4 LT |
3197 | } |
3198 | ||
3199 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
3200 | { | |
8687b63a | 3201 | __be32 *p; |
1da177e4 LT |
3202 | int status = 0; |
3203 | ||
3204 | *res = 1024; | |
3205 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) | |
3206 | return -EIO; | |
3207 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { | |
3208 | uint64_t maxwrite; | |
c0eae66e BH |
3209 | p = xdr_inline_decode(xdr, 8); |
3210 | if (unlikely(!p)) | |
3211 | goto out_overflow; | |
cccddf4f | 3212 | xdr_decode_hyper(p, &maxwrite); |
1da177e4 LT |
3213 | if (maxwrite > 0x7FFFFFFF) |
3214 | maxwrite = 0x7FFFFFFF; | |
3215 | *res = (uint32_t)maxwrite; | |
3216 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; | |
3217 | } | |
3110ff80 | 3218 | dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); |
1da177e4 | 3219 | return status; |
c0eae66e BH |
3220 | out_overflow: |
3221 | print_overflow_msg(__func__, xdr); | |
3222 | return -EIO; | |
1da177e4 LT |
3223 | } |
3224 | ||
bca79478 | 3225 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) |
1da177e4 | 3226 | { |
bca79478 | 3227 | uint32_t tmp; |
8687b63a | 3228 | __be32 *p; |
409924e4 | 3229 | int ret = 0; |
1da177e4 LT |
3230 | |
3231 | *mode = 0; | |
3232 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) | |
3233 | return -EIO; | |
3234 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { | |
c0eae66e BH |
3235 | p = xdr_inline_decode(xdr, 4); |
3236 | if (unlikely(!p)) | |
3237 | goto out_overflow; | |
cccddf4f | 3238 | tmp = be32_to_cpup(p); |
bca79478 | 3239 | *mode = tmp & ~S_IFMT; |
1da177e4 | 3240 | bitmap[1] &= ~FATTR4_WORD1_MODE; |
409924e4 | 3241 | ret = NFS_ATTR_FATTR_MODE; |
1da177e4 | 3242 | } |
3110ff80 | 3243 | dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); |
409924e4 | 3244 | return ret; |
c0eae66e BH |
3245 | out_overflow: |
3246 | print_overflow_msg(__func__, xdr); | |
3247 | return -EIO; | |
1da177e4 LT |
3248 | } |
3249 | ||
3250 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) | |
3251 | { | |
8687b63a | 3252 | __be32 *p; |
409924e4 | 3253 | int ret = 0; |
1da177e4 LT |
3254 | |
3255 | *nlink = 1; | |
3256 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) | |
3257 | return -EIO; | |
3258 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { | |
c0eae66e BH |
3259 | p = xdr_inline_decode(xdr, 4); |
3260 | if (unlikely(!p)) | |
3261 | goto out_overflow; | |
cccddf4f | 3262 | *nlink = be32_to_cpup(p); |
1da177e4 | 3263 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; |
409924e4 | 3264 | ret = NFS_ATTR_FATTR_NLINK; |
1da177e4 | 3265 | } |
3110ff80 | 3266 | dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); |
409924e4 | 3267 | return ret; |
c0eae66e BH |
3268 | out_overflow: |
3269 | print_overflow_msg(__func__, xdr); | |
3270 | return -EIO; | |
1da177e4 LT |
3271 | } |
3272 | ||
80e52ace TM |
3273 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, |
3274 | struct nfs_client *clp, uint32_t *uid, int may_sleep) | |
1da177e4 | 3275 | { |
8687b63a AV |
3276 | uint32_t len; |
3277 | __be32 *p; | |
409924e4 | 3278 | int ret = 0; |
1da177e4 LT |
3279 | |
3280 | *uid = -2; | |
3281 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) | |
3282 | return -EIO; | |
3283 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { | |
c0eae66e BH |
3284 | p = xdr_inline_decode(xdr, 4); |
3285 | if (unlikely(!p)) | |
3286 | goto out_overflow; | |
cccddf4f | 3287 | len = be32_to_cpup(p); |
c0eae66e BH |
3288 | p = xdr_inline_decode(xdr, len); |
3289 | if (unlikely(!p)) | |
3290 | goto out_overflow; | |
80e52ace TM |
3291 | if (!may_sleep) { |
3292 | /* do nothing */ | |
3293 | } else if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
3294 | if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) |
3295 | ret = NFS_ATTR_FATTR_OWNER; | |
3296 | else | |
1da177e4 | 3297 | dprintk("%s: nfs_map_name_to_uid failed!\n", |
3110ff80 | 3298 | __func__); |
1da177e4 | 3299 | } else |
fe82a183 | 3300 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3301 | __func__, len); |
1da177e4 LT |
3302 | bitmap[1] &= ~FATTR4_WORD1_OWNER; |
3303 | } | |
3110ff80 | 3304 | dprintk("%s: uid=%d\n", __func__, (int)*uid); |
409924e4 | 3305 | return ret; |
c0eae66e BH |
3306 | out_overflow: |
3307 | print_overflow_msg(__func__, xdr); | |
3308 | return -EIO; | |
1da177e4 LT |
3309 | } |
3310 | ||
80e52ace TM |
3311 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, |
3312 | struct nfs_client *clp, uint32_t *gid, int may_sleep) | |
1da177e4 | 3313 | { |
8687b63a AV |
3314 | uint32_t len; |
3315 | __be32 *p; | |
409924e4 | 3316 | int ret = 0; |
1da177e4 LT |
3317 | |
3318 | *gid = -2; | |
3319 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) | |
3320 | return -EIO; | |
3321 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { | |
c0eae66e BH |
3322 | p = xdr_inline_decode(xdr, 4); |
3323 | if (unlikely(!p)) | |
3324 | goto out_overflow; | |
cccddf4f | 3325 | len = be32_to_cpup(p); |
c0eae66e BH |
3326 | p = xdr_inline_decode(xdr, len); |
3327 | if (unlikely(!p)) | |
3328 | goto out_overflow; | |
80e52ace TM |
3329 | if (!may_sleep) { |
3330 | /* do nothing */ | |
3331 | } else if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
3332 | if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) |
3333 | ret = NFS_ATTR_FATTR_GROUP; | |
3334 | else | |
1da177e4 | 3335 | dprintk("%s: nfs_map_group_to_gid failed!\n", |
3110ff80 | 3336 | __func__); |
1da177e4 | 3337 | } else |
fe82a183 | 3338 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3339 | __func__, len); |
1da177e4 LT |
3340 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; |
3341 | } | |
3110ff80 | 3342 | dprintk("%s: gid=%d\n", __func__, (int)*gid); |
409924e4 | 3343 | return ret; |
c0eae66e BH |
3344 | out_overflow: |
3345 | print_overflow_msg(__func__, xdr); | |
3346 | return -EIO; | |
1da177e4 LT |
3347 | } |
3348 | ||
3349 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) | |
3350 | { | |
8687b63a AV |
3351 | uint32_t major = 0, minor = 0; |
3352 | __be32 *p; | |
409924e4 | 3353 | int ret = 0; |
1da177e4 LT |
3354 | |
3355 | *rdev = MKDEV(0,0); | |
3356 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) | |
3357 | return -EIO; | |
3358 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { | |
3359 | dev_t tmp; | |
3360 | ||
c0eae66e BH |
3361 | p = xdr_inline_decode(xdr, 8); |
3362 | if (unlikely(!p)) | |
3363 | goto out_overflow; | |
6f723f77 | 3364 | major = be32_to_cpup(p++); |
cccddf4f | 3365 | minor = be32_to_cpup(p); |
1da177e4 LT |
3366 | tmp = MKDEV(major, minor); |
3367 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) | |
3368 | *rdev = tmp; | |
3369 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; | |
409924e4 | 3370 | ret = NFS_ATTR_FATTR_RDEV; |
1da177e4 | 3371 | } |
3110ff80 | 3372 | dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); |
409924e4 | 3373 | return ret; |
c0eae66e BH |
3374 | out_overflow: |
3375 | print_overflow_msg(__func__, xdr); | |
3376 | return -EIO; | |
1da177e4 LT |
3377 | } |
3378 | ||
3379 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3380 | { | |
8687b63a | 3381 | __be32 *p; |
1da177e4 LT |
3382 | int status = 0; |
3383 | ||
3384 | *res = 0; | |
3385 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) | |
3386 | return -EIO; | |
3387 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { | |
c0eae66e BH |
3388 | p = xdr_inline_decode(xdr, 8); |
3389 | if (unlikely(!p)) | |
3390 | goto out_overflow; | |
cccddf4f | 3391 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3392 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; |
3393 | } | |
3110ff80 | 3394 | dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3395 | return status; |
c0eae66e BH |
3396 | out_overflow: |
3397 | print_overflow_msg(__func__, xdr); | |
3398 | return -EIO; | |
1da177e4 LT |
3399 | } |
3400 | ||
3401 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3402 | { | |
8687b63a | 3403 | __be32 *p; |
1da177e4 LT |
3404 | int status = 0; |
3405 | ||
3406 | *res = 0; | |
3407 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) | |
3408 | return -EIO; | |
3409 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { | |
c0eae66e BH |
3410 | p = xdr_inline_decode(xdr, 8); |
3411 | if (unlikely(!p)) | |
3412 | goto out_overflow; | |
cccddf4f | 3413 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3414 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; |
3415 | } | |
3110ff80 | 3416 | dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3417 | return status; |
c0eae66e BH |
3418 | out_overflow: |
3419 | print_overflow_msg(__func__, xdr); | |
3420 | return -EIO; | |
1da177e4 LT |
3421 | } |
3422 | ||
3423 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3424 | { | |
8687b63a | 3425 | __be32 *p; |
1da177e4 LT |
3426 | int status = 0; |
3427 | ||
3428 | *res = 0; | |
3429 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) | |
3430 | return -EIO; | |
3431 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { | |
c0eae66e BH |
3432 | p = xdr_inline_decode(xdr, 8); |
3433 | if (unlikely(!p)) | |
3434 | goto out_overflow; | |
cccddf4f | 3435 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3436 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; |
3437 | } | |
3110ff80 | 3438 | dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3439 | return status; |
c0eae66e BH |
3440 | out_overflow: |
3441 | print_overflow_msg(__func__, xdr); | |
3442 | return -EIO; | |
1da177e4 LT |
3443 | } |
3444 | ||
3445 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) | |
3446 | { | |
8687b63a | 3447 | __be32 *p; |
409924e4 | 3448 | int ret = 0; |
1da177e4 LT |
3449 | |
3450 | *used = 0; | |
3451 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) | |
3452 | return -EIO; | |
3453 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { | |
c0eae66e BH |
3454 | p = xdr_inline_decode(xdr, 8); |
3455 | if (unlikely(!p)) | |
3456 | goto out_overflow; | |
cccddf4f | 3457 | xdr_decode_hyper(p, used); |
1da177e4 | 3458 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; |
409924e4 | 3459 | ret = NFS_ATTR_FATTR_SPACE_USED; |
1da177e4 | 3460 | } |
3110ff80 | 3461 | dprintk("%s: space used=%Lu\n", __func__, |
1da177e4 | 3462 | (unsigned long long)*used); |
409924e4 | 3463 | return ret; |
c0eae66e BH |
3464 | out_overflow: |
3465 | print_overflow_msg(__func__, xdr); | |
3466 | return -EIO; | |
1da177e4 LT |
3467 | } |
3468 | ||
3469 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) | |
3470 | { | |
8687b63a | 3471 | __be32 *p; |
1da177e4 LT |
3472 | uint64_t sec; |
3473 | uint32_t nsec; | |
3474 | ||
c0eae66e BH |
3475 | p = xdr_inline_decode(xdr, 12); |
3476 | if (unlikely(!p)) | |
3477 | goto out_overflow; | |
3ceb4dbb | 3478 | p = xdr_decode_hyper(p, &sec); |
cccddf4f | 3479 | nsec = be32_to_cpup(p); |
1da177e4 LT |
3480 | time->tv_sec = (time_t)sec; |
3481 | time->tv_nsec = (long)nsec; | |
3482 | return 0; | |
c0eae66e BH |
3483 | out_overflow: |
3484 | print_overflow_msg(__func__, xdr); | |
3485 | return -EIO; | |
1da177e4 LT |
3486 | } |
3487 | ||
3488 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3489 | { | |
3490 | int status = 0; | |
3491 | ||
3492 | time->tv_sec = 0; | |
3493 | time->tv_nsec = 0; | |
3494 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) | |
3495 | return -EIO; | |
3496 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { | |
3497 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3498 | if (status == 0) |
3499 | status = NFS_ATTR_FATTR_ATIME; | |
1da177e4 LT |
3500 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; |
3501 | } | |
3110ff80 | 3502 | dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3503 | return status; |
3504 | } | |
3505 | ||
3506 | static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3507 | { | |
3508 | int status = 0; | |
3509 | ||
3510 | time->tv_sec = 0; | |
3511 | time->tv_nsec = 0; | |
3512 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) | |
3513 | return -EIO; | |
3514 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { | |
3515 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3516 | if (status == 0) |
3517 | status = NFS_ATTR_FATTR_CTIME; | |
1da177e4 LT |
3518 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; |
3519 | } | |
3110ff80 | 3520 | dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3521 | return status; |
3522 | } | |
3523 | ||
3524 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3525 | { | |
3526 | int status = 0; | |
3527 | ||
3528 | time->tv_sec = 0; | |
3529 | time->tv_nsec = 0; | |
3530 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) | |
3531 | return -EIO; | |
3532 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { | |
3533 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3534 | if (status == 0) |
3535 | status = NFS_ATTR_FATTR_MTIME; | |
1da177e4 LT |
3536 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; |
3537 | } | |
3110ff80 | 3538 | dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3539 | return status; |
3540 | } | |
3541 | ||
8687b63a | 3542 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
1da177e4 LT |
3543 | { |
3544 | unsigned int attrwords = XDR_QUADLEN(attrlen); | |
3545 | unsigned int nwords = xdr->p - savep; | |
3546 | ||
3547 | if (unlikely(attrwords != nwords)) { | |
fe82a183 CL |
3548 | dprintk("%s: server returned incorrect attribute length: " |
3549 | "%u %c %u\n", | |
3110ff80 | 3550 | __func__, |
1da177e4 LT |
3551 | attrwords << 2, |
3552 | (attrwords < nwords) ? '<' : '>', | |
3553 | nwords << 2); | |
3554 | return -EIO; | |
3555 | } | |
3556 | return 0; | |
3557 | } | |
3558 | ||
3559 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3560 | { | |
8687b63a | 3561 | __be32 *p; |
1da177e4 | 3562 | |
c0eae66e BH |
3563 | p = xdr_inline_decode(xdr, 20); |
3564 | if (unlikely(!p)) | |
3565 | goto out_overflow; | |
6f723f77 | 3566 | cinfo->atomic = be32_to_cpup(p++); |
3ceb4dbb | 3567 | p = xdr_decode_hyper(p, &cinfo->before); |
cccddf4f | 3568 | xdr_decode_hyper(p, &cinfo->after); |
1da177e4 | 3569 | return 0; |
c0eae66e BH |
3570 | out_overflow: |
3571 | print_overflow_msg(__func__, xdr); | |
3572 | return -EIO; | |
1da177e4 LT |
3573 | } |
3574 | ||
3575 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) | |
3576 | { | |
8687b63a | 3577 | __be32 *p; |
1da177e4 LT |
3578 | uint32_t supp, acc; |
3579 | int status; | |
3580 | ||
3581 | status = decode_op_hdr(xdr, OP_ACCESS); | |
3582 | if (status) | |
3583 | return status; | |
c0eae66e BH |
3584 | p = xdr_inline_decode(xdr, 8); |
3585 | if (unlikely(!p)) | |
3586 | goto out_overflow; | |
6f723f77 | 3587 | supp = be32_to_cpup(p++); |
cccddf4f | 3588 | acc = be32_to_cpup(p); |
1da177e4 LT |
3589 | access->supported = supp; |
3590 | access->access = acc; | |
3591 | return 0; | |
c0eae66e BH |
3592 | out_overflow: |
3593 | print_overflow_msg(__func__, xdr); | |
3594 | return -EIO; | |
1da177e4 LT |
3595 | } |
3596 | ||
07d30434 | 3597 | static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) |
1da177e4 | 3598 | { |
8687b63a | 3599 | __be32 *p; |
07d30434 BH |
3600 | |
3601 | p = xdr_inline_decode(xdr, len); | |
3602 | if (likely(p)) { | |
3603 | memcpy(buf, p, len); | |
3604 | return 0; | |
3605 | } | |
3606 | print_overflow_msg(__func__, xdr); | |
3607 | return -EIO; | |
3608 | } | |
3609 | ||
3610 | static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) | |
3611 | { | |
3612 | return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); | |
3613 | } | |
3614 | ||
3615 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3616 | { | |
1da177e4 LT |
3617 | int status; |
3618 | ||
3619 | status = decode_op_hdr(xdr, OP_CLOSE); | |
c1d51931 TM |
3620 | if (status != -EIO) |
3621 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
3622 | if (!status) |
3623 | status = decode_stateid(xdr, &res->stateid); | |
3624 | return status; | |
1da177e4 LT |
3625 | } |
3626 | ||
db942bbd BH |
3627 | static int decode_verifier(struct xdr_stream *xdr, void *verifier) |
3628 | { | |
3629 | return decode_opaque_fixed(xdr, verifier, 8); | |
1da177e4 LT |
3630 | } |
3631 | ||
3632 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3633 | { | |
1da177e4 LT |
3634 | int status; |
3635 | ||
3636 | status = decode_op_hdr(xdr, OP_COMMIT); | |
db942bbd BH |
3637 | if (!status) |
3638 | status = decode_verifier(xdr, res->verf->verifier); | |
3639 | return status; | |
1da177e4 LT |
3640 | } |
3641 | ||
3642 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3643 | { | |
8687b63a | 3644 | __be32 *p; |
1da177e4 LT |
3645 | uint32_t bmlen; |
3646 | int status; | |
3647 | ||
3648 | status = decode_op_hdr(xdr, OP_CREATE); | |
3649 | if (status) | |
3650 | return status; | |
3651 | if ((status = decode_change_info(xdr, cinfo))) | |
3652 | return status; | |
c0eae66e BH |
3653 | p = xdr_inline_decode(xdr, 4); |
3654 | if (unlikely(!p)) | |
3655 | goto out_overflow; | |
cccddf4f | 3656 | bmlen = be32_to_cpup(p); |
c0eae66e BH |
3657 | p = xdr_inline_decode(xdr, bmlen << 2); |
3658 | if (likely(p)) | |
3659 | return 0; | |
3660 | out_overflow: | |
3661 | print_overflow_msg(__func__, xdr); | |
3662 | return -EIO; | |
1da177e4 LT |
3663 | } |
3664 | ||
3665 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) | |
3666 | { | |
8687b63a | 3667 | __be32 *savep; |
6c0195a4 | 3668 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 LT |
3669 | int status; |
3670 | ||
3671 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3672 | goto xdr_error; | |
3673 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3674 | goto xdr_error; | |
3675 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3676 | goto xdr_error; | |
3677 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) | |
3678 | goto xdr_error; | |
3679 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) | |
3680 | goto xdr_error; | |
3681 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) | |
3682 | goto xdr_error; | |
3683 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) | |
3684 | goto xdr_error; | |
3685 | status = verify_attr_len(xdr, savep, attrlen); | |
3686 | xdr_error: | |
3110ff80 | 3687 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3688 | return status; |
3689 | } | |
6c0195a4 | 3690 | |
1da177e4 LT |
3691 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) |
3692 | { | |
8687b63a | 3693 | __be32 *savep; |
6c0195a4 | 3694 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3695 | int status; |
6c0195a4 | 3696 | |
1da177e4 LT |
3697 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3698 | goto xdr_error; | |
3699 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3700 | goto xdr_error; | |
3701 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3702 | goto xdr_error; | |
3703 | ||
3704 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) | |
3705 | goto xdr_error; | |
3706 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) | |
3707 | goto xdr_error; | |
3708 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) | |
3709 | goto xdr_error; | |
3710 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) | |
3711 | goto xdr_error; | |
3712 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) | |
3713 | goto xdr_error; | |
3714 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) | |
3715 | goto xdr_error; | |
3716 | ||
3717 | status = verify_attr_len(xdr, savep, attrlen); | |
3718 | xdr_error: | |
3110ff80 | 3719 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3720 | return status; |
3721 | } | |
3722 | ||
3723 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) | |
3724 | { | |
8687b63a | 3725 | __be32 *savep; |
6c0195a4 | 3726 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3727 | int status; |
6c0195a4 | 3728 | |
1da177e4 LT |
3729 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3730 | goto xdr_error; | |
3731 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3732 | goto xdr_error; | |
3733 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3734 | goto xdr_error; | |
3735 | ||
3736 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) | |
3737 | goto xdr_error; | |
3738 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) | |
3739 | goto xdr_error; | |
3740 | ||
3741 | status = verify_attr_len(xdr, savep, attrlen); | |
3742 | xdr_error: | |
3110ff80 | 3743 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3744 | return status; |
3745 | } | |
3746 | ||
80e52ace TM |
3747 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, |
3748 | const struct nfs_server *server, int may_sleep) | |
1da177e4 | 3749 | { |
8687b63a | 3750 | __be32 *savep; |
1da177e4 LT |
3751 | uint32_t attrlen, |
3752 | bitmap[2] = {0}, | |
3753 | type; | |
bca79478 TM |
3754 | int status; |
3755 | umode_t fmode = 0; | |
99baf625 | 3756 | uint64_t fileid; |
1da177e4 | 3757 | |
f26c7a78 TM |
3758 | status = decode_op_hdr(xdr, OP_GETATTR); |
3759 | if (status < 0) | |
1da177e4 | 3760 | goto xdr_error; |
f26c7a78 TM |
3761 | |
3762 | status = decode_attr_bitmap(xdr, bitmap); | |
3763 | if (status < 0) | |
1da177e4 LT |
3764 | goto xdr_error; |
3765 | ||
f26c7a78 TM |
3766 | status = decode_attr_length(xdr, &attrlen, &savep); |
3767 | if (status < 0) | |
1da177e4 LT |
3768 | goto xdr_error; |
3769 | ||
3770 | ||
f26c7a78 TM |
3771 | status = decode_attr_type(xdr, bitmap, &type); |
3772 | if (status < 0) | |
1da177e4 | 3773 | goto xdr_error; |
409924e4 TM |
3774 | fattr->mode = 0; |
3775 | if (status != 0) { | |
3776 | fattr->mode |= nfs_type2fmt[type]; | |
3777 | fattr->valid |= status; | |
3778 | } | |
1da177e4 | 3779 | |
f26c7a78 TM |
3780 | status = decode_attr_change(xdr, bitmap, &fattr->change_attr); |
3781 | if (status < 0) | |
1da177e4 | 3782 | goto xdr_error; |
409924e4 | 3783 | fattr->valid |= status; |
f26c7a78 TM |
3784 | |
3785 | status = decode_attr_size(xdr, bitmap, &fattr->size); | |
3786 | if (status < 0) | |
1da177e4 | 3787 | goto xdr_error; |
409924e4 | 3788 | fattr->valid |= status; |
f26c7a78 TM |
3789 | |
3790 | status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); | |
3791 | if (status < 0) | |
1da177e4 | 3792 | goto xdr_error; |
409924e4 | 3793 | fattr->valid |= status; |
f26c7a78 TM |
3794 | |
3795 | status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); | |
3796 | if (status < 0) | |
1da177e4 | 3797 | goto xdr_error; |
409924e4 | 3798 | fattr->valid |= status; |
f26c7a78 TM |
3799 | |
3800 | status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, | |
7aaa0b3b | 3801 | struct nfs4_fs_locations, |
f26c7a78 TM |
3802 | fattr)); |
3803 | if (status < 0) | |
683b57b4 | 3804 | goto xdr_error; |
409924e4 | 3805 | fattr->valid |= status; |
f26c7a78 TM |
3806 | |
3807 | status = decode_attr_mode(xdr, bitmap, &fmode); | |
3808 | if (status < 0) | |
1da177e4 | 3809 | goto xdr_error; |
409924e4 TM |
3810 | if (status != 0) { |
3811 | fattr->mode |= fmode; | |
3812 | fattr->valid |= status; | |
3813 | } | |
f26c7a78 TM |
3814 | |
3815 | status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); | |
3816 | if (status < 0) | |
1da177e4 | 3817 | goto xdr_error; |
409924e4 | 3818 | fattr->valid |= status; |
f26c7a78 | 3819 | |
80e52ace TM |
3820 | status = decode_attr_owner(xdr, bitmap, server->nfs_client, |
3821 | &fattr->uid, may_sleep); | |
f26c7a78 | 3822 | if (status < 0) |
1da177e4 | 3823 | goto xdr_error; |
409924e4 | 3824 | fattr->valid |= status; |
f26c7a78 | 3825 | |
80e52ace TM |
3826 | status = decode_attr_group(xdr, bitmap, server->nfs_client, |
3827 | &fattr->gid, may_sleep); | |
f26c7a78 | 3828 | if (status < 0) |
1da177e4 | 3829 | goto xdr_error; |
409924e4 | 3830 | fattr->valid |= status; |
f26c7a78 TM |
3831 | |
3832 | status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); | |
3833 | if (status < 0) | |
1da177e4 | 3834 | goto xdr_error; |
409924e4 | 3835 | fattr->valid |= status; |
f26c7a78 TM |
3836 | |
3837 | status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); | |
3838 | if (status < 0) | |
1da177e4 | 3839 | goto xdr_error; |
409924e4 | 3840 | fattr->valid |= status; |
f26c7a78 TM |
3841 | |
3842 | status = decode_attr_time_access(xdr, bitmap, &fattr->atime); | |
3843 | if (status < 0) | |
1da177e4 | 3844 | goto xdr_error; |
409924e4 | 3845 | fattr->valid |= status; |
f26c7a78 TM |
3846 | |
3847 | status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); | |
3848 | if (status < 0) | |
1da177e4 | 3849 | goto xdr_error; |
409924e4 | 3850 | fattr->valid |= status; |
f26c7a78 TM |
3851 | |
3852 | status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); | |
3853 | if (status < 0) | |
1da177e4 | 3854 | goto xdr_error; |
409924e4 | 3855 | fattr->valid |= status; |
f26c7a78 TM |
3856 | |
3857 | status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); | |
3858 | if (status < 0) | |
99baf625 | 3859 | goto xdr_error; |
409924e4 | 3860 | if (status != 0 && !(fattr->valid & status)) { |
99baf625 | 3861 | fattr->fileid = fileid; |
409924e4 TM |
3862 | fattr->valid |= status; |
3863 | } | |
f26c7a78 TM |
3864 | |
3865 | status = verify_attr_len(xdr, savep, attrlen); | |
1da177e4 | 3866 | xdr_error: |
3110ff80 | 3867 | dprintk("%s: xdr returned %d\n", __func__, -status); |
1da177e4 LT |
3868 | return status; |
3869 | } | |
3870 | ||
3871 | ||
3872 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) | |
3873 | { | |
8687b63a | 3874 | __be32 *savep; |
1da177e4 LT |
3875 | uint32_t attrlen, bitmap[2]; |
3876 | int status; | |
3877 | ||
3878 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3879 | goto xdr_error; | |
3880 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3881 | goto xdr_error; | |
3882 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3883 | goto xdr_error; | |
3884 | ||
3885 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ | |
3886 | ||
3887 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) | |
3888 | goto xdr_error; | |
3889 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) | |
3890 | goto xdr_error; | |
3891 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) | |
3892 | goto xdr_error; | |
3893 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; | |
3894 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) | |
3895 | goto xdr_error; | |
3896 | fsinfo->wtpref = fsinfo->wtmax; | |
3897 | ||
3898 | status = verify_attr_len(xdr, savep, attrlen); | |
3899 | xdr_error: | |
3110ff80 | 3900 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3901 | return status; |
3902 | } | |
3903 | ||
3904 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) | |
3905 | { | |
8687b63a | 3906 | __be32 *p; |
1da177e4 LT |
3907 | uint32_t len; |
3908 | int status; | |
3909 | ||
9936781d TM |
3910 | /* Zero handle first to allow comparisons */ |
3911 | memset(fh, 0, sizeof(*fh)); | |
3912 | ||
1da177e4 LT |
3913 | status = decode_op_hdr(xdr, OP_GETFH); |
3914 | if (status) | |
3915 | return status; | |
1da177e4 | 3916 | |
c0eae66e BH |
3917 | p = xdr_inline_decode(xdr, 4); |
3918 | if (unlikely(!p)) | |
3919 | goto out_overflow; | |
cccddf4f | 3920 | len = be32_to_cpup(p); |
1da177e4 LT |
3921 | if (len > NFS4_FHSIZE) |
3922 | return -EIO; | |
3923 | fh->size = len; | |
c0eae66e BH |
3924 | p = xdr_inline_decode(xdr, len); |
3925 | if (unlikely(!p)) | |
3926 | goto out_overflow; | |
99398d06 | 3927 | memcpy(fh->data, p, len); |
1da177e4 | 3928 | return 0; |
c0eae66e BH |
3929 | out_overflow: |
3930 | print_overflow_msg(__func__, xdr); | |
3931 | return -EIO; | |
1da177e4 LT |
3932 | } |
3933 | ||
3934 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3935 | { | |
3936 | int status; | |
6c0195a4 | 3937 | |
1da177e4 LT |
3938 | status = decode_op_hdr(xdr, OP_LINK); |
3939 | if (status) | |
3940 | return status; | |
3941 | return decode_change_info(xdr, cinfo); | |
3942 | } | |
3943 | ||
3944 | /* | |
3945 | * We create the owner, so we know a proper owner.id length is 4. | |
3946 | */ | |
911d1aaf | 3947 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
1da177e4 | 3948 | { |
911d1aaf | 3949 | uint64_t offset, length, clientid; |
8687b63a | 3950 | __be32 *p; |
911d1aaf | 3951 | uint32_t namelen, type; |
1da177e4 | 3952 | |
c0eae66e BH |
3953 | p = xdr_inline_decode(xdr, 32); |
3954 | if (unlikely(!p)) | |
3955 | goto out_overflow; | |
3ceb4dbb BH |
3956 | p = xdr_decode_hyper(p, &offset); |
3957 | p = xdr_decode_hyper(p, &length); | |
6f723f77 | 3958 | type = be32_to_cpup(p++); |
911d1aaf TM |
3959 | if (fl != NULL) { |
3960 | fl->fl_start = (loff_t)offset; | |
3961 | fl->fl_end = fl->fl_start + (loff_t)length - 1; | |
3962 | if (length == ~(uint64_t)0) | |
3963 | fl->fl_end = OFFSET_MAX; | |
3964 | fl->fl_type = F_WRLCK; | |
3965 | if (type & 1) | |
3966 | fl->fl_type = F_RDLCK; | |
3967 | fl->fl_pid = 0; | |
3968 | } | |
3ceb4dbb | 3969 | p = xdr_decode_hyper(p, &clientid); |
cccddf4f | 3970 | namelen = be32_to_cpup(p); |
c0eae66e BH |
3971 | p = xdr_inline_decode(xdr, namelen); |
3972 | if (likely(p)) | |
3973 | return -NFS4ERR_DENIED; | |
3974 | out_overflow: | |
3975 | print_overflow_msg(__func__, xdr); | |
3976 | return -EIO; | |
1da177e4 LT |
3977 | } |
3978 | ||
911d1aaf | 3979 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
1da177e4 | 3980 | { |
1da177e4 LT |
3981 | int status; |
3982 | ||
3983 | status = decode_op_hdr(xdr, OP_LOCK); | |
c1d51931 TM |
3984 | if (status == -EIO) |
3985 | goto out; | |
1da177e4 | 3986 | if (status == 0) { |
07d30434 BH |
3987 | status = decode_stateid(xdr, &res->stateid); |
3988 | if (unlikely(status)) | |
3989 | goto out; | |
1da177e4 | 3990 | } else if (status == -NFS4ERR_DENIED) |
c1d51931 TM |
3991 | status = decode_lock_denied(xdr, NULL); |
3992 | if (res->open_seqid != NULL) | |
3993 | nfs_increment_open_seqid(status, res->open_seqid); | |
3994 | nfs_increment_lock_seqid(status, res->lock_seqid); | |
3995 | out: | |
1da177e4 LT |
3996 | return status; |
3997 | } | |
3998 | ||
911d1aaf | 3999 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
1da177e4 LT |
4000 | { |
4001 | int status; | |
4002 | status = decode_op_hdr(xdr, OP_LOCKT); | |
4003 | if (status == -NFS4ERR_DENIED) | |
911d1aaf | 4004 | return decode_lock_denied(xdr, res->denied); |
1da177e4 LT |
4005 | return status; |
4006 | } | |
4007 | ||
911d1aaf | 4008 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
1da177e4 | 4009 | { |
1da177e4 LT |
4010 | int status; |
4011 | ||
4012 | status = decode_op_hdr(xdr, OP_LOCKU); | |
c1d51931 TM |
4013 | if (status != -EIO) |
4014 | nfs_increment_lock_seqid(status, res->seqid); | |
07d30434 BH |
4015 | if (status == 0) |
4016 | status = decode_stateid(xdr, &res->stateid); | |
1da177e4 LT |
4017 | return status; |
4018 | } | |
4019 | ||
d3c7b7cc TM |
4020 | static int decode_release_lockowner(struct xdr_stream *xdr) |
4021 | { | |
4022 | return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); | |
4023 | } | |
4024 | ||
1da177e4 LT |
4025 | static int decode_lookup(struct xdr_stream *xdr) |
4026 | { | |
4027 | return decode_op_hdr(xdr, OP_LOOKUP); | |
4028 | } | |
4029 | ||
4030 | /* This is too sick! */ | |
4031 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) | |
4032 | { | |
05d564fe | 4033 | __be32 *p; |
1da177e4 LT |
4034 | uint32_t limit_type, nblocks, blocksize; |
4035 | ||
c0eae66e BH |
4036 | p = xdr_inline_decode(xdr, 12); |
4037 | if (unlikely(!p)) | |
4038 | goto out_overflow; | |
6f723f77 | 4039 | limit_type = be32_to_cpup(p++); |
1da177e4 | 4040 | switch (limit_type) { |
05d564fe | 4041 | case 1: |
cccddf4f | 4042 | xdr_decode_hyper(p, maxsize); |
05d564fe AA |
4043 | break; |
4044 | case 2: | |
6f723f77 | 4045 | nblocks = be32_to_cpup(p++); |
cccddf4f | 4046 | blocksize = be32_to_cpup(p); |
05d564fe | 4047 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; |
1da177e4 LT |
4048 | } |
4049 | return 0; | |
c0eae66e BH |
4050 | out_overflow: |
4051 | print_overflow_msg(__func__, xdr); | |
4052 | return -EIO; | |
1da177e4 LT |
4053 | } |
4054 | ||
4055 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) | |
4056 | { | |
05d564fe AA |
4057 | __be32 *p; |
4058 | uint32_t delegation_type; | |
07d30434 | 4059 | int status; |
1da177e4 | 4060 | |
c0eae66e BH |
4061 | p = xdr_inline_decode(xdr, 4); |
4062 | if (unlikely(!p)) | |
4063 | goto out_overflow; | |
cccddf4f | 4064 | delegation_type = be32_to_cpup(p); |
1da177e4 LT |
4065 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { |
4066 | res->delegation_type = 0; | |
4067 | return 0; | |
4068 | } | |
07d30434 BH |
4069 | status = decode_stateid(xdr, &res->delegation); |
4070 | if (unlikely(status)) | |
4071 | return status; | |
c0eae66e BH |
4072 | p = xdr_inline_decode(xdr, 4); |
4073 | if (unlikely(!p)) | |
4074 | goto out_overflow; | |
cccddf4f | 4075 | res->do_recall = be32_to_cpup(p); |
05d564fe | 4076 | |
1da177e4 | 4077 | switch (delegation_type) { |
05d564fe AA |
4078 | case NFS4_OPEN_DELEGATE_READ: |
4079 | res->delegation_type = FMODE_READ; | |
4080 | break; | |
4081 | case NFS4_OPEN_DELEGATE_WRITE: | |
4082 | res->delegation_type = FMODE_WRITE|FMODE_READ; | |
4083 | if (decode_space_limit(xdr, &res->maxsize) < 0) | |
1da177e4 LT |
4084 | return -EIO; |
4085 | } | |
7539bbab | 4086 | return decode_ace(xdr, NULL, res->server->nfs_client); |
c0eae66e BH |
4087 | out_overflow: |
4088 | print_overflow_msg(__func__, xdr); | |
4089 | return -EIO; | |
1da177e4 LT |
4090 | } |
4091 | ||
4092 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) | |
4093 | { | |
05d564fe | 4094 | __be32 *p; |
aa53ed54 | 4095 | uint32_t savewords, bmlen, i; |
05d564fe | 4096 | int status; |
1da177e4 | 4097 | |
05d564fe | 4098 | status = decode_op_hdr(xdr, OP_OPEN); |
c1d51931 TM |
4099 | if (status != -EIO) |
4100 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
4101 | if (!status) |
4102 | status = decode_stateid(xdr, &res->stateid); | |
4103 | if (unlikely(status)) | |
05d564fe | 4104 | return status; |
1da177e4 | 4105 | |
05d564fe | 4106 | decode_change_info(xdr, &res->cinfo); |
1da177e4 | 4107 | |
c0eae66e BH |
4108 | p = xdr_inline_decode(xdr, 8); |
4109 | if (unlikely(!p)) | |
4110 | goto out_overflow; | |
6f723f77 | 4111 | res->rflags = be32_to_cpup(p++); |
cccddf4f | 4112 | bmlen = be32_to_cpup(p); |
05d564fe AA |
4113 | if (bmlen > 10) |
4114 | goto xdr_error; | |
1da177e4 | 4115 | |
c0eae66e BH |
4116 | p = xdr_inline_decode(xdr, bmlen << 2); |
4117 | if (unlikely(!p)) | |
4118 | goto out_overflow; | |
aa53ed54 JL |
4119 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
4120 | for (i = 0; i < savewords; ++i) | |
6f723f77 | 4121 | res->attrset[i] = be32_to_cpup(p++); |
aa53ed54 JL |
4122 | for (; i < NFS4_BITMAP_SIZE; i++) |
4123 | res->attrset[i] = 0; | |
4124 | ||
1da177e4 LT |
4125 | return decode_delegation(xdr, res); |
4126 | xdr_error: | |
3110ff80 | 4127 | dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); |
1da177e4 | 4128 | return -EIO; |
c0eae66e BH |
4129 | out_overflow: |
4130 | print_overflow_msg(__func__, xdr); | |
4131 | return -EIO; | |
1da177e4 LT |
4132 | } |
4133 | ||
4134 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) | |
4135 | { | |
1da177e4 LT |
4136 | int status; |
4137 | ||
05d564fe | 4138 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); |
c1d51931 TM |
4139 | if (status != -EIO) |
4140 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
4141 | if (!status) |
4142 | status = decode_stateid(xdr, &res->stateid); | |
4143 | return status; | |
1da177e4 LT |
4144 | } |
4145 | ||
4146 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) | |
4147 | { | |
1da177e4 LT |
4148 | int status; |
4149 | ||
4150 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); | |
c1d51931 TM |
4151 | if (status != -EIO) |
4152 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
4153 | if (!status) |
4154 | status = decode_stateid(xdr, &res->stateid); | |
4155 | return status; | |
1da177e4 LT |
4156 | } |
4157 | ||
4158 | static int decode_putfh(struct xdr_stream *xdr) | |
4159 | { | |
4160 | return decode_op_hdr(xdr, OP_PUTFH); | |
4161 | } | |
4162 | ||
4163 | static int decode_putrootfh(struct xdr_stream *xdr) | |
4164 | { | |
4165 | return decode_op_hdr(xdr, OP_PUTROOTFH); | |
4166 | } | |
4167 | ||
4168 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) | |
4169 | { | |
4170 | struct kvec *iov = req->rq_rcv_buf.head; | |
8687b63a | 4171 | __be32 *p; |
1da177e4 LT |
4172 | uint32_t count, eof, recvd, hdrlen; |
4173 | int status; | |
4174 | ||
4175 | status = decode_op_hdr(xdr, OP_READ); | |
4176 | if (status) | |
4177 | return status; | |
c0eae66e BH |
4178 | p = xdr_inline_decode(xdr, 8); |
4179 | if (unlikely(!p)) | |
4180 | goto out_overflow; | |
6f723f77 | 4181 | eof = be32_to_cpup(p++); |
cccddf4f | 4182 | count = be32_to_cpup(p); |
1da177e4 LT |
4183 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; |
4184 | recvd = req->rq_rcv_buf.len - hdrlen; | |
4185 | if (count > recvd) { | |
fe82a183 | 4186 | dprintk("NFS: server cheating in read reply: " |
1da177e4 LT |
4187 | "count %u > recvd %u\n", count, recvd); |
4188 | count = recvd; | |
4189 | eof = 0; | |
4190 | } | |
4191 | xdr_read_pages(xdr, count); | |
4192 | res->eof = eof; | |
4193 | res->count = count; | |
4194 | return 0; | |
c0eae66e BH |
4195 | out_overflow: |
4196 | print_overflow_msg(__func__, xdr); | |
4197 | return -EIO; | |
1da177e4 LT |
4198 | } |
4199 | ||
4200 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) | |
4201 | { | |
4202 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
4203 | struct page *page = *rcvbuf->pages; | |
4204 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
4205 | size_t hdrlen; |
4206 | u32 recvd, pglen = rcvbuf->page_len; | |
8687b63a | 4207 | __be32 *end, *entry, *p, *kaddr; |
7bda2cdf | 4208 | unsigned int nr = 0; |
bcecff77 | 4209 | int status; |
1da177e4 LT |
4210 | |
4211 | status = decode_op_hdr(xdr, OP_READDIR); | |
db942bbd BH |
4212 | if (!status) |
4213 | status = decode_verifier(xdr, readdir->verifier.data); | |
4214 | if (unlikely(status)) | |
1da177e4 | 4215 | return status; |
44109241 FI |
4216 | dprintk("%s: verifier = %08x:%08x\n", |
4217 | __func__, | |
eadf4598 TM |
4218 | ((u32 *)readdir->verifier.data)[0], |
4219 | ((u32 *)readdir->verifier.data)[1]); | |
4220 | ||
1da177e4 | 4221 | |
db942bbd | 4222 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; |
1da177e4 LT |
4223 | recvd = rcvbuf->len - hdrlen; |
4224 | if (pglen > recvd) | |
4225 | pglen = recvd; | |
4226 | xdr_read_pages(xdr, pglen); | |
4227 | ||
4228 | BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); | |
8687b63a | 4229 | kaddr = p = kmap_atomic(page, KM_USER0); |
e8896495 | 4230 | end = p + ((pglen + readdir->pgbase) >> 2); |
1da177e4 | 4231 | entry = p; |
7bda2cdf JL |
4232 | |
4233 | /* Make sure the packet actually has a value_follows and EOF entry */ | |
4234 | if ((entry + 1) > end) | |
4235 | goto short_pkt; | |
4236 | ||
4237 | for (; *p++; nr++) { | |
bcecff77 | 4238 | u32 len, attrlen, xlen; |
e8896495 | 4239 | if (end - p < 3) |
1da177e4 | 4240 | goto short_pkt; |
eadf4598 | 4241 | dprintk("cookie = %Lu, ", *((unsigned long long *)p)); |
1da177e4 LT |
4242 | p += 2; /* cookie */ |
4243 | len = ntohl(*p++); /* filename length */ | |
4244 | if (len > NFS4_MAXNAMLEN) { | |
fe82a183 CL |
4245 | dprintk("NFS: giant filename in readdir (len 0x%x)\n", |
4246 | len); | |
1da177e4 LT |
4247 | goto err_unmap; |
4248 | } | |
e8896495 DH |
4249 | xlen = XDR_QUADLEN(len); |
4250 | if (end - p < xlen + 1) | |
1da177e4 | 4251 | goto short_pkt; |
e8896495 DH |
4252 | dprintk("filename = %*s\n", len, (char *)p); |
4253 | p += xlen; | |
1da177e4 | 4254 | len = ntohl(*p++); /* bitmap length */ |
e8896495 | 4255 | if (end - p < len + 1) |
1da177e4 | 4256 | goto short_pkt; |
e8896495 | 4257 | p += len; |
1da177e4 | 4258 | attrlen = XDR_QUADLEN(ntohl(*p++)); |
e8896495 | 4259 | if (end - p < attrlen + 2) |
1da177e4 | 4260 | goto short_pkt; |
e8896495 | 4261 | p += attrlen; /* attributes */ |
1da177e4 LT |
4262 | entry = p; |
4263 | } | |
7bda2cdf JL |
4264 | /* |
4265 | * Apparently some server sends responses that are a valid size, but | |
4266 | * contain no entries, and have value_follows==0 and EOF==0. For | |
4267 | * those, just set the EOF marker. | |
4268 | */ | |
4269 | if (!nr && entry[1] == 0) { | |
4270 | dprintk("NFS: readdir reply truncated!\n"); | |
4271 | entry[1] = 1; | |
4272 | } | |
6c0195a4 | 4273 | out: |
1da177e4 LT |
4274 | kunmap_atomic(kaddr, KM_USER0); |
4275 | return 0; | |
4276 | short_pkt: | |
7bda2cdf JL |
4277 | /* |
4278 | * When we get a short packet there are 2 possibilities. We can | |
4279 | * return an error, or fix up the response to look like a valid | |
4280 | * response and return what we have so far. If there are no | |
4281 | * entries and the packet was short, then return -EIO. If there | |
4282 | * are valid entries in the response, return them and pretend that | |
4283 | * the call was successful, but incomplete. The caller can retry the | |
4284 | * readdir starting at the last cookie. | |
4285 | */ | |
3110ff80 | 4286 | dprintk("%s: short packet at entry %d\n", __func__, nr); |
1da177e4 | 4287 | entry[0] = entry[1] = 0; |
7bda2cdf JL |
4288 | if (nr) |
4289 | goto out; | |
1da177e4 LT |
4290 | err_unmap: |
4291 | kunmap_atomic(kaddr, KM_USER0); | |
4292 | return -errno_NFSERR_IO; | |
4293 | } | |
4294 | ||
4295 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) | |
4296 | { | |
4297 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
4298 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
4299 | size_t hdrlen; |
4300 | u32 len, recvd; | |
8687b63a | 4301 | __be32 *p; |
1da177e4 LT |
4302 | char *kaddr; |
4303 | int status; | |
4304 | ||
4305 | status = decode_op_hdr(xdr, OP_READLINK); | |
4306 | if (status) | |
4307 | return status; | |
4308 | ||
4309 | /* Convert length of symlink */ | |
c0eae66e BH |
4310 | p = xdr_inline_decode(xdr, 4); |
4311 | if (unlikely(!p)) | |
4312 | goto out_overflow; | |
cccddf4f | 4313 | len = be32_to_cpup(p); |
1da177e4 | 4314 | if (len >= rcvbuf->page_len || len <= 0) { |
fe82a183 | 4315 | dprintk("nfs: server returned giant symlink!\n"); |
1da177e4 LT |
4316 | return -ENAMETOOLONG; |
4317 | } | |
4318 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; | |
4319 | recvd = req->rq_rcv_buf.len - hdrlen; | |
4320 | if (recvd < len) { | |
fe82a183 | 4321 | dprintk("NFS: server cheating in readlink reply: " |
1da177e4 LT |
4322 | "count %u > recvd %u\n", len, recvd); |
4323 | return -EIO; | |
4324 | } | |
4325 | xdr_read_pages(xdr, len); | |
4326 | /* | |
4327 | * The XDR encode routine has set things up so that | |
4328 | * the link text will be copied directly into the | |
4329 | * buffer. We just have to do overflow-checking, | |
4330 | * and and null-terminate the text (the VFS expects | |
4331 | * null-termination). | |
4332 | */ | |
4333 | kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); | |
4334 | kaddr[len+rcvbuf->page_base] = '\0'; | |
4335 | kunmap_atomic(kaddr, KM_USER0); | |
4336 | return 0; | |
c0eae66e BH |
4337 | out_overflow: |
4338 | print_overflow_msg(__func__, xdr); | |
4339 | return -EIO; | |
1da177e4 LT |
4340 | } |
4341 | ||
4342 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
4343 | { | |
4344 | int status; | |
4345 | ||
4346 | status = decode_op_hdr(xdr, OP_REMOVE); | |
4347 | if (status) | |
4348 | goto out; | |
4349 | status = decode_change_info(xdr, cinfo); | |
4350 | out: | |
4351 | return status; | |
4352 | } | |
4353 | ||
4354 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, | |
4355 | struct nfs4_change_info *new_cinfo) | |
4356 | { | |
4357 | int status; | |
4358 | ||
4359 | status = decode_op_hdr(xdr, OP_RENAME); | |
4360 | if (status) | |
4361 | goto out; | |
4362 | if ((status = decode_change_info(xdr, old_cinfo))) | |
4363 | goto out; | |
4364 | status = decode_change_info(xdr, new_cinfo); | |
4365 | out: | |
4366 | return status; | |
4367 | } | |
4368 | ||
4369 | static int decode_renew(struct xdr_stream *xdr) | |
4370 | { | |
4371 | return decode_op_hdr(xdr, OP_RENEW); | |
4372 | } | |
4373 | ||
56ae19f3 TM |
4374 | static int |
4375 | decode_restorefh(struct xdr_stream *xdr) | |
4376 | { | |
4377 | return decode_op_hdr(xdr, OP_RESTOREFH); | |
4378 | } | |
4379 | ||
029d105e BF |
4380 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
4381 | size_t *acl_len) | |
4382 | { | |
8687b63a | 4383 | __be32 *savep; |
029d105e BF |
4384 | uint32_t attrlen, |
4385 | bitmap[2] = {0}; | |
4386 | struct kvec *iov = req->rq_rcv_buf.head; | |
4387 | int status; | |
4388 | ||
4389 | *acl_len = 0; | |
4390 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
4391 | goto out; | |
4392 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
4393 | goto out; | |
4394 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
4395 | goto out; | |
4396 | ||
4397 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) | |
4398 | return -EIO; | |
4399 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { | |
bcecff77 CL |
4400 | size_t hdrlen; |
4401 | u32 recvd; | |
029d105e BF |
4402 | |
4403 | /* We ignore &savep and don't do consistency checks on | |
4404 | * the attr length. Let userspace figure it out.... */ | |
4405 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; | |
4406 | recvd = req->rq_rcv_buf.len - hdrlen; | |
4407 | if (attrlen > recvd) { | |
fe82a183 | 4408 | dprintk("NFS: server cheating in getattr" |
029d105e BF |
4409 | " acl reply: attrlen %u > recvd %u\n", |
4410 | attrlen, recvd); | |
4411 | return -EINVAL; | |
4412 | } | |
c04871e6 | 4413 | xdr_read_pages(xdr, attrlen); |
029d105e | 4414 | *acl_len = attrlen; |
8c233cf9 BF |
4415 | } else |
4416 | status = -EOPNOTSUPP; | |
029d105e BF |
4417 | |
4418 | out: | |
4419 | return status; | |
4420 | } | |
4421 | ||
1da177e4 LT |
4422 | static int |
4423 | decode_savefh(struct xdr_stream *xdr) | |
4424 | { | |
4425 | return decode_op_hdr(xdr, OP_SAVEFH); | |
4426 | } | |
4427 | ||
9e9ecc03 | 4428 | static int decode_setattr(struct xdr_stream *xdr) |
1da177e4 | 4429 | { |
8687b63a | 4430 | __be32 *p; |
1da177e4 LT |
4431 | uint32_t bmlen; |
4432 | int status; | |
4433 | ||
1da177e4 LT |
4434 | status = decode_op_hdr(xdr, OP_SETATTR); |
4435 | if (status) | |
4436 | return status; | |
c0eae66e BH |
4437 | p = xdr_inline_decode(xdr, 4); |
4438 | if (unlikely(!p)) | |
4439 | goto out_overflow; | |
cccddf4f | 4440 | bmlen = be32_to_cpup(p); |
c0eae66e BH |
4441 | p = xdr_inline_decode(xdr, bmlen << 2); |
4442 | if (likely(p)) | |
4443 | return 0; | |
4444 | out_overflow: | |
4445 | print_overflow_msg(__func__, xdr); | |
4446 | return -EIO; | |
1da177e4 LT |
4447 | } |
4448 | ||
bb8b27e5 | 4449 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) |
1da177e4 | 4450 | { |
8687b63a | 4451 | __be32 *p; |
1da177e4 LT |
4452 | uint32_t opnum; |
4453 | int32_t nfserr; | |
4454 | ||
c0eae66e BH |
4455 | p = xdr_inline_decode(xdr, 8); |
4456 | if (unlikely(!p)) | |
4457 | goto out_overflow; | |
6f723f77 | 4458 | opnum = be32_to_cpup(p++); |
1da177e4 | 4459 | if (opnum != OP_SETCLIENTID) { |
fe82a183 | 4460 | dprintk("nfs: decode_setclientid: Server returned operation" |
6c0195a4 | 4461 | " %d\n", opnum); |
1da177e4 LT |
4462 | return -EIO; |
4463 | } | |
cccddf4f | 4464 | nfserr = be32_to_cpup(p); |
1da177e4 | 4465 | if (nfserr == NFS_OK) { |
c0eae66e BH |
4466 | p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); |
4467 | if (unlikely(!p)) | |
4468 | goto out_overflow; | |
bb8b27e5 TM |
4469 | p = xdr_decode_hyper(p, &res->clientid); |
4470 | memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); | |
1da177e4 LT |
4471 | } else if (nfserr == NFSERR_CLID_INUSE) { |
4472 | uint32_t len; | |
4473 | ||
4474 | /* skip netid string */ | |
c0eae66e BH |
4475 | p = xdr_inline_decode(xdr, 4); |
4476 | if (unlikely(!p)) | |
4477 | goto out_overflow; | |
cccddf4f | 4478 | len = be32_to_cpup(p); |
c0eae66e BH |
4479 | p = xdr_inline_decode(xdr, len); |
4480 | if (unlikely(!p)) | |
4481 | goto out_overflow; | |
1da177e4 LT |
4482 | |
4483 | /* skip uaddr string */ | |
c0eae66e BH |
4484 | p = xdr_inline_decode(xdr, 4); |
4485 | if (unlikely(!p)) | |
4486 | goto out_overflow; | |
cccddf4f | 4487 | len = be32_to_cpup(p); |
c0eae66e BH |
4488 | p = xdr_inline_decode(xdr, len); |
4489 | if (unlikely(!p)) | |
4490 | goto out_overflow; | |
1da177e4 LT |
4491 | return -NFSERR_CLID_INUSE; |
4492 | } else | |
856dff3d | 4493 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
4494 | |
4495 | return 0; | |
c0eae66e BH |
4496 | out_overflow: |
4497 | print_overflow_msg(__func__, xdr); | |
4498 | return -EIO; | |
1da177e4 LT |
4499 | } |
4500 | ||
4501 | static int decode_setclientid_confirm(struct xdr_stream *xdr) | |
4502 | { | |
4503 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); | |
4504 | } | |
4505 | ||
4506 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) | |
4507 | { | |
8687b63a | 4508 | __be32 *p; |
1da177e4 LT |
4509 | int status; |
4510 | ||
4511 | status = decode_op_hdr(xdr, OP_WRITE); | |
4512 | if (status) | |
4513 | return status; | |
4514 | ||
c0eae66e BH |
4515 | p = xdr_inline_decode(xdr, 16); |
4516 | if (unlikely(!p)) | |
4517 | goto out_overflow; | |
6f723f77 BH |
4518 | res->count = be32_to_cpup(p++); |
4519 | res->verf->committed = be32_to_cpup(p++); | |
99398d06 | 4520 | memcpy(res->verf->verifier, p, 8); |
1da177e4 | 4521 | return 0; |
c0eae66e BH |
4522 | out_overflow: |
4523 | print_overflow_msg(__func__, xdr); | |
4524 | return -EIO; | |
1da177e4 LT |
4525 | } |
4526 | ||
4527 | static int decode_delegreturn(struct xdr_stream *xdr) | |
4528 | { | |
4529 | return decode_op_hdr(xdr, OP_DELEGRETURN); | |
4530 | } | |
4531 | ||
99fe60d0 BH |
4532 | #if defined(CONFIG_NFS_V4_1) |
4533 | static int decode_exchange_id(struct xdr_stream *xdr, | |
4534 | struct nfs41_exchange_id_res *res) | |
4535 | { | |
4536 | __be32 *p; | |
4537 | uint32_t dummy; | |
2460ba57 | 4538 | char *dummy_str; |
99fe60d0 BH |
4539 | int status; |
4540 | struct nfs_client *clp = res->client; | |
4541 | ||
4542 | status = decode_op_hdr(xdr, OP_EXCHANGE_ID); | |
4543 | if (status) | |
4544 | return status; | |
4545 | ||
c0eae66e BH |
4546 | p = xdr_inline_decode(xdr, 8); |
4547 | if (unlikely(!p)) | |
4548 | goto out_overflow; | |
cccddf4f | 4549 | xdr_decode_hyper(p, &clp->cl_ex_clid); |
c0eae66e BH |
4550 | p = xdr_inline_decode(xdr, 12); |
4551 | if (unlikely(!p)) | |
4552 | goto out_overflow; | |
6f723f77 BH |
4553 | clp->cl_seqid = be32_to_cpup(p++); |
4554 | clp->cl_exchange_flags = be32_to_cpup(p++); | |
99fe60d0 BH |
4555 | |
4556 | /* We ask for SP4_NONE */ | |
cccddf4f | 4557 | dummy = be32_to_cpup(p); |
99fe60d0 BH |
4558 | if (dummy != SP4_NONE) |
4559 | return -EIO; | |
4560 | ||
4561 | /* Throw away minor_id */ | |
c0eae66e BH |
4562 | p = xdr_inline_decode(xdr, 8); |
4563 | if (unlikely(!p)) | |
4564 | goto out_overflow; | |
99fe60d0 BH |
4565 | |
4566 | /* Throw away Major id */ | |
2460ba57 BH |
4567 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); |
4568 | if (unlikely(status)) | |
4569 | return status; | |
99fe60d0 BH |
4570 | |
4571 | /* Throw away server_scope */ | |
2460ba57 BH |
4572 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); |
4573 | if (unlikely(status)) | |
4574 | return status; | |
99fe60d0 BH |
4575 | |
4576 | /* Throw away Implementation id array */ | |
2460ba57 BH |
4577 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); |
4578 | if (unlikely(status)) | |
4579 | return status; | |
99fe60d0 BH |
4580 | |
4581 | return 0; | |
c0eae66e BH |
4582 | out_overflow: |
4583 | print_overflow_msg(__func__, xdr); | |
4584 | return -EIO; | |
99fe60d0 | 4585 | } |
fc931582 AA |
4586 | |
4587 | static int decode_chan_attrs(struct xdr_stream *xdr, | |
4588 | struct nfs4_channel_attrs *attrs) | |
4589 | { | |
4590 | __be32 *p; | |
4591 | u32 nr_attrs; | |
4592 | ||
c0eae66e BH |
4593 | p = xdr_inline_decode(xdr, 28); |
4594 | if (unlikely(!p)) | |
4595 | goto out_overflow; | |
6f723f77 BH |
4596 | attrs->headerpadsz = be32_to_cpup(p++); |
4597 | attrs->max_rqst_sz = be32_to_cpup(p++); | |
4598 | attrs->max_resp_sz = be32_to_cpup(p++); | |
4599 | attrs->max_resp_sz_cached = be32_to_cpup(p++); | |
4600 | attrs->max_ops = be32_to_cpup(p++); | |
4601 | attrs->max_reqs = be32_to_cpup(p++); | |
cccddf4f | 4602 | nr_attrs = be32_to_cpup(p); |
fc931582 AA |
4603 | if (unlikely(nr_attrs > 1)) { |
4604 | printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", | |
4605 | __func__, nr_attrs); | |
4606 | return -EINVAL; | |
4607 | } | |
c0eae66e BH |
4608 | if (nr_attrs == 1) { |
4609 | p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ | |
4610 | if (unlikely(!p)) | |
4611 | goto out_overflow; | |
4612 | } | |
fc931582 | 4613 | return 0; |
c0eae66e BH |
4614 | out_overflow: |
4615 | print_overflow_msg(__func__, xdr); | |
4616 | return -EIO; | |
fc931582 AA |
4617 | } |
4618 | ||
e78291e4 BH |
4619 | static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) |
4620 | { | |
4621 | return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); | |
fc931582 AA |
4622 | } |
4623 | ||
4624 | static int decode_create_session(struct xdr_stream *xdr, | |
4625 | struct nfs41_create_session_res *res) | |
4626 | { | |
4627 | __be32 *p; | |
4628 | int status; | |
4629 | struct nfs_client *clp = res->client; | |
4630 | struct nfs4_session *session = clp->cl_session; | |
4631 | ||
4632 | status = decode_op_hdr(xdr, OP_CREATE_SESSION); | |
e78291e4 BH |
4633 | if (!status) |
4634 | status = decode_sessionid(xdr, &session->sess_id); | |
4635 | if (unlikely(status)) | |
fc931582 AA |
4636 | return status; |
4637 | ||
fc931582 | 4638 | /* seqid, flags */ |
c0eae66e BH |
4639 | p = xdr_inline_decode(xdr, 8); |
4640 | if (unlikely(!p)) | |
4641 | goto out_overflow; | |
6f723f77 | 4642 | clp->cl_seqid = be32_to_cpup(p++); |
cccddf4f | 4643 | session->flags = be32_to_cpup(p); |
fc931582 AA |
4644 | |
4645 | /* Channel attributes */ | |
4646 | status = decode_chan_attrs(xdr, &session->fc_attrs); | |
4647 | if (!status) | |
4648 | status = decode_chan_attrs(xdr, &session->bc_attrs); | |
4649 | return status; | |
c0eae66e BH |
4650 | out_overflow: |
4651 | print_overflow_msg(__func__, xdr); | |
4652 | return -EIO; | |
fc931582 | 4653 | } |
0f3e66c6 AA |
4654 | |
4655 | static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) | |
4656 | { | |
4657 | return decode_op_hdr(xdr, OP_DESTROY_SESSION); | |
4658 | } | |
18019753 RL |
4659 | |
4660 | static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) | |
4661 | { | |
4662 | return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); | |
4663 | } | |
99fe60d0 BH |
4664 | #endif /* CONFIG_NFS_V4_1 */ |
4665 | ||
9b7b9fcc AA |
4666 | static int decode_sequence(struct xdr_stream *xdr, |
4667 | struct nfs4_sequence_res *res, | |
4668 | struct rpc_rqst *rqstp) | |
4669 | { | |
4670 | #if defined(CONFIG_NFS_V4_1) | |
fc01cea9 AA |
4671 | struct nfs4_slot *slot; |
4672 | struct nfs4_sessionid id; | |
4673 | u32 dummy; | |
4674 | int status; | |
4675 | __be32 *p; | |
4676 | ||
9b7b9fcc AA |
4677 | if (!res->sr_session) |
4678 | return 0; | |
4679 | ||
fc01cea9 | 4680 | status = decode_op_hdr(xdr, OP_SEQUENCE); |
e78291e4 BH |
4681 | if (!status) |
4682 | status = decode_sessionid(xdr, &id); | |
4683 | if (unlikely(status)) | |
fc01cea9 | 4684 | goto out_err; |
9b7b9fcc | 4685 | |
fc01cea9 AA |
4686 | /* |
4687 | * If the server returns different values for sessionID, slotID or | |
4688 | * sequence number, the server is looney tunes. | |
4689 | */ | |
fdcb4577 | 4690 | status = -EREMOTEIO; |
fc01cea9 | 4691 | |
fc01cea9 AA |
4692 | if (memcmp(id.data, res->sr_session->sess_id.data, |
4693 | NFS4_MAX_SESSIONID_LEN)) { | |
4694 | dprintk("%s Invalid session id\n", __func__); | |
4695 | goto out_err; | |
4696 | } | |
e78291e4 | 4697 | |
c0eae66e BH |
4698 | p = xdr_inline_decode(xdr, 20); |
4699 | if (unlikely(!p)) | |
4700 | goto out_overflow; | |
e78291e4 | 4701 | |
fc01cea9 | 4702 | /* seqid */ |
e78291e4 | 4703 | slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; |
6f723f77 | 4704 | dummy = be32_to_cpup(p++); |
fc01cea9 AA |
4705 | if (dummy != slot->seq_nr) { |
4706 | dprintk("%s Invalid sequence number\n", __func__); | |
4707 | goto out_err; | |
4708 | } | |
4709 | /* slot id */ | |
6f723f77 | 4710 | dummy = be32_to_cpup(p++); |
fc01cea9 AA |
4711 | if (dummy != res->sr_slotid) { |
4712 | dprintk("%s Invalid slot id\n", __func__); | |
4713 | goto out_err; | |
4714 | } | |
4715 | /* highest slot id - currently not processed */ | |
6f723f77 | 4716 | dummy = be32_to_cpup(p++); |
fc01cea9 | 4717 | /* target highest slot id - currently not processed */ |
6f723f77 | 4718 | dummy = be32_to_cpup(p++); |
0629e370 AB |
4719 | /* result flags */ |
4720 | res->sr_status_flags = be32_to_cpup(p); | |
fc01cea9 AA |
4721 | status = 0; |
4722 | out_err: | |
4723 | res->sr_status = status; | |
4724 | return status; | |
c0eae66e BH |
4725 | out_overflow: |
4726 | print_overflow_msg(__func__, xdr); | |
4727 | status = -EIO; | |
4728 | goto out_err; | |
fc01cea9 | 4729 | #else /* CONFIG_NFS_V4_1 */ |
9b7b9fcc | 4730 | return 0; |
fc01cea9 | 4731 | #endif /* CONFIG_NFS_V4_1 */ |
9b7b9fcc AA |
4732 | } |
4733 | ||
49c2559e BH |
4734 | /* |
4735 | * END OF "GENERIC" DECODE ROUTINES. | |
4736 | */ | |
4737 | ||
1da177e4 LT |
4738 | /* |
4739 | * Decode OPEN_DOWNGRADE response | |
4740 | */ | |
8687b63a | 4741 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4742 | { |
05d564fe AA |
4743 | struct xdr_stream xdr; |
4744 | struct compound_hdr hdr; | |
4745 | int status; | |
4746 | ||
4747 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4748 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4749 | if (status) |
4750 | goto out; | |
4751 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4752 | if (status) |
4753 | goto out; | |
4754 | status = decode_putfh(&xdr); | |
4755 | if (status) | |
4756 | goto out; | |
4757 | status = decode_open_downgrade(&xdr, res); | |
516a6af6 TM |
4758 | if (status != 0) |
4759 | goto out; | |
80e52ace TM |
4760 | decode_getfattr(&xdr, res->fattr, res->server, |
4761 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 | 4762 | out: |
05d564fe | 4763 | return status; |
1da177e4 LT |
4764 | } |
4765 | ||
1da177e4 LT |
4766 | /* |
4767 | * Decode ACCESS response | |
4768 | */ | |
8687b63a | 4769 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) |
1da177e4 LT |
4770 | { |
4771 | struct xdr_stream xdr; | |
4772 | struct compound_hdr hdr; | |
4773 | int status; | |
6c0195a4 | 4774 | |
1da177e4 | 4775 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4776 | status = decode_compound_hdr(&xdr, &hdr); |
4777 | if (status) | |
4778 | goto out; | |
4779 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4780 | if (status) | |
1da177e4 | 4781 | goto out; |
76b32999 TM |
4782 | status = decode_putfh(&xdr); |
4783 | if (status != 0) | |
4784 | goto out; | |
4785 | status = decode_access(&xdr, res); | |
4786 | if (status != 0) | |
4787 | goto out; | |
80e52ace TM |
4788 | decode_getfattr(&xdr, res->fattr, res->server, |
4789 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4790 | out: |
4791 | return status; | |
4792 | } | |
4793 | ||
4794 | /* | |
4795 | * Decode LOOKUP response | |
4796 | */ | |
8687b63a | 4797 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
4798 | { |
4799 | struct xdr_stream xdr; | |
4800 | struct compound_hdr hdr; | |
4801 | int status; | |
6c0195a4 | 4802 | |
1da177e4 | 4803 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4804 | status = decode_compound_hdr(&xdr, &hdr); |
4805 | if (status) | |
4806 | goto out; | |
4807 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4808 | if (status) | |
1da177e4 LT |
4809 | goto out; |
4810 | if ((status = decode_putfh(&xdr)) != 0) | |
4811 | goto out; | |
4812 | if ((status = decode_lookup(&xdr)) != 0) | |
4813 | goto out; | |
4814 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
4815 | goto out; | |
80e52ace TM |
4816 | status = decode_getfattr(&xdr, res->fattr, res->server |
4817 | ,!RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4818 | out: |
4819 | return status; | |
4820 | } | |
4821 | ||
4822 | /* | |
4823 | * Decode LOOKUP_ROOT response | |
4824 | */ | |
8687b63a | 4825 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
4826 | { |
4827 | struct xdr_stream xdr; | |
4828 | struct compound_hdr hdr; | |
4829 | int status; | |
6c0195a4 | 4830 | |
1da177e4 | 4831 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4832 | status = decode_compound_hdr(&xdr, &hdr); |
4833 | if (status) | |
4834 | goto out; | |
4835 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4836 | if (status) | |
1da177e4 LT |
4837 | goto out; |
4838 | if ((status = decode_putrootfh(&xdr)) != 0) | |
4839 | goto out; | |
4840 | if ((status = decode_getfh(&xdr, res->fh)) == 0) | |
80e52ace TM |
4841 | status = decode_getfattr(&xdr, res->fattr, res->server, |
4842 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4843 | out: |
4844 | return status; | |
4845 | } | |
4846 | ||
4847 | /* | |
4848 | * Decode REMOVE response | |
4849 | */ | |
4fdc17b2 | 4850 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) |
1da177e4 LT |
4851 | { |
4852 | struct xdr_stream xdr; | |
4853 | struct compound_hdr hdr; | |
4854 | int status; | |
6c0195a4 | 4855 | |
1da177e4 | 4856 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4857 | status = decode_compound_hdr(&xdr, &hdr); |
4858 | if (status) | |
4859 | goto out; | |
4860 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4861 | if (status) | |
1da177e4 | 4862 | goto out; |
16e42959 TM |
4863 | if ((status = decode_putfh(&xdr)) != 0) |
4864 | goto out; | |
4865 | if ((status = decode_remove(&xdr, &res->cinfo)) != 0) | |
4866 | goto out; | |
d346890b | 4867 | decode_getfattr(&xdr, res->dir_attr, res->server, |
80e52ace | 4868 | !RPC_IS_ASYNC(rqstp->rq_task)); |
1da177e4 LT |
4869 | out: |
4870 | return status; | |
4871 | } | |
4872 | ||
4873 | /* | |
4874 | * Decode RENAME response | |
4875 | */ | |
8687b63a | 4876 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) |
1da177e4 LT |
4877 | { |
4878 | struct xdr_stream xdr; | |
4879 | struct compound_hdr hdr; | |
4880 | int status; | |
6c0195a4 | 4881 | |
1da177e4 | 4882 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4883 | status = decode_compound_hdr(&xdr, &hdr); |
4884 | if (status) | |
4885 | goto out; | |
4886 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4887 | if (status) | |
1da177e4 LT |
4888 | goto out; |
4889 | if ((status = decode_putfh(&xdr)) != 0) | |
4890 | goto out; | |
4891 | if ((status = decode_savefh(&xdr)) != 0) | |
4892 | goto out; | |
4893 | if ((status = decode_putfh(&xdr)) != 0) | |
4894 | goto out; | |
6caf2c82 TM |
4895 | if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) |
4896 | goto out; | |
4897 | /* Current FH is target directory */ | |
80e52ace TM |
4898 | if (decode_getfattr(&xdr, res->new_fattr, res->server, |
4899 | !RPC_IS_ASYNC(rqstp->rq_task)) != 0) | |
6caf2c82 TM |
4900 | goto out; |
4901 | if ((status = decode_restorefh(&xdr)) != 0) | |
4902 | goto out; | |
80e52ace TM |
4903 | decode_getfattr(&xdr, res->old_fattr, res->server, |
4904 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4905 | out: |
4906 | return status; | |
4907 | } | |
4908 | ||
4909 | /* | |
4910 | * Decode LINK response | |
4911 | */ | |
8687b63a | 4912 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) |
1da177e4 LT |
4913 | { |
4914 | struct xdr_stream xdr; | |
4915 | struct compound_hdr hdr; | |
4916 | int status; | |
6c0195a4 | 4917 | |
1da177e4 | 4918 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4919 | status = decode_compound_hdr(&xdr, &hdr); |
4920 | if (status) | |
4921 | goto out; | |
4922 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4923 | if (status) | |
1da177e4 LT |
4924 | goto out; |
4925 | if ((status = decode_putfh(&xdr)) != 0) | |
4926 | goto out; | |
4927 | if ((status = decode_savefh(&xdr)) != 0) | |
4928 | goto out; | |
4929 | if ((status = decode_putfh(&xdr)) != 0) | |
4930 | goto out; | |
91ba2eee TM |
4931 | if ((status = decode_link(&xdr, &res->cinfo)) != 0) |
4932 | goto out; | |
4933 | /* | |
4934 | * Note order: OP_LINK leaves the directory as the current | |
4935 | * filehandle. | |
4936 | */ | |
80e52ace TM |
4937 | if (decode_getfattr(&xdr, res->dir_attr, res->server, |
4938 | !RPC_IS_ASYNC(rqstp->rq_task)) != 0) | |
91ba2eee TM |
4939 | goto out; |
4940 | if ((status = decode_restorefh(&xdr)) != 0) | |
4941 | goto out; | |
80e52ace TM |
4942 | decode_getfattr(&xdr, res->fattr, res->server, |
4943 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4944 | out: |
4945 | return status; | |
4946 | } | |
4947 | ||
4948 | /* | |
4949 | * Decode CREATE response | |
4950 | */ | |
8687b63a | 4951 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4952 | { |
4953 | struct xdr_stream xdr; | |
4954 | struct compound_hdr hdr; | |
4955 | int status; | |
6c0195a4 | 4956 | |
1da177e4 | 4957 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4958 | status = decode_compound_hdr(&xdr, &hdr); |
4959 | if (status) | |
4960 | goto out; | |
4961 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4962 | if (status) | |
1da177e4 LT |
4963 | goto out; |
4964 | if ((status = decode_putfh(&xdr)) != 0) | |
4965 | goto out; | |
56ae19f3 TM |
4966 | if ((status = decode_savefh(&xdr)) != 0) |
4967 | goto out; | |
1da177e4 LT |
4968 | if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) |
4969 | goto out; | |
4970 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
4971 | goto out; | |
80e52ace TM |
4972 | if (decode_getfattr(&xdr, res->fattr, res->server, |
4973 | !RPC_IS_ASYNC(rqstp->rq_task)) != 0) | |
56ae19f3 TM |
4974 | goto out; |
4975 | if ((status = decode_restorefh(&xdr)) != 0) | |
4976 | goto out; | |
80e52ace TM |
4977 | decode_getfattr(&xdr, res->dir_fattr, res->server, |
4978 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
4979 | out: |
4980 | return status; | |
4981 | } | |
4982 | ||
4983 | /* | |
4984 | * Decode SYMLINK response | |
4985 | */ | |
8687b63a | 4986 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4987 | { |
4988 | return nfs4_xdr_dec_create(rqstp, p, res); | |
4989 | } | |
4990 | ||
4991 | /* | |
4992 | * Decode GETATTR response | |
4993 | */ | |
8687b63a | 4994 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) |
1da177e4 LT |
4995 | { |
4996 | struct xdr_stream xdr; | |
4997 | struct compound_hdr hdr; | |
4998 | int status; | |
6c0195a4 | 4999 | |
1da177e4 LT |
5000 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
5001 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5002 | if (status) |
5003 | goto out; | |
5004 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5005 | if (status) |
5006 | goto out; | |
5007 | status = decode_putfh(&xdr); | |
5008 | if (status) | |
5009 | goto out; | |
80e52ace TM |
5010 | status = decode_getfattr(&xdr, res->fattr, res->server, |
5011 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
5012 | out: |
5013 | return status; | |
1da177e4 LT |
5014 | } |
5015 | ||
23ec6965 BF |
5016 | /* |
5017 | * Encode an SETACL request | |
5018 | */ | |
5019 | static int | |
8687b63a | 5020 | nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) |
23ec6965 | 5021 | { |
05d564fe AA |
5022 | struct xdr_stream xdr; |
5023 | struct compound_hdr hdr = { | |
66cc0429 | 5024 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe AA |
5025 | }; |
5026 | int status; | |
5027 | ||
5028 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 5029 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 5030 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 | 5031 | encode_putfh(&xdr, args->fh, &hdr); |
d017931c | 5032 | status = encode_setacl(&xdr, args, &hdr); |
d017931c | 5033 | encode_nops(&hdr); |
05d564fe | 5034 | return status; |
23ec6965 | 5035 | } |
05d564fe | 5036 | |
23ec6965 BF |
5037 | /* |
5038 | * Decode SETACL response | |
5039 | */ | |
5040 | static int | |
73c403a9 BH |
5041 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, |
5042 | struct nfs_setaclres *res) | |
23ec6965 BF |
5043 | { |
5044 | struct xdr_stream xdr; | |
5045 | struct compound_hdr hdr; | |
5046 | int status; | |
5047 | ||
5048 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5049 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5050 | if (status) |
5051 | goto out; | |
5052 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
23ec6965 BF |
5053 | if (status) |
5054 | goto out; | |
5055 | status = decode_putfh(&xdr); | |
5056 | if (status) | |
5057 | goto out; | |
9e9ecc03 | 5058 | status = decode_setattr(&xdr); |
23ec6965 BF |
5059 | out: |
5060 | return status; | |
5061 | } | |
1da177e4 | 5062 | |
029d105e BF |
5063 | /* |
5064 | * Decode GETACL response | |
5065 | */ | |
5066 | static int | |
663c79b3 BH |
5067 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, |
5068 | struct nfs_getaclres *res) | |
029d105e BF |
5069 | { |
5070 | struct xdr_stream xdr; | |
5071 | struct compound_hdr hdr; | |
5072 | int status; | |
5073 | ||
5074 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5075 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5076 | if (status) |
5077 | goto out; | |
5078 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
029d105e BF |
5079 | if (status) |
5080 | goto out; | |
5081 | status = decode_putfh(&xdr); | |
5082 | if (status) | |
5083 | goto out; | |
663c79b3 | 5084 | status = decode_getacl(&xdr, rqstp, &res->acl_len); |
029d105e BF |
5085 | |
5086 | out: | |
5087 | return status; | |
5088 | } | |
5089 | ||
1da177e4 LT |
5090 | /* |
5091 | * Decode CLOSE response | |
5092 | */ | |
8687b63a | 5093 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 5094 | { |
05d564fe AA |
5095 | struct xdr_stream xdr; |
5096 | struct compound_hdr hdr; | |
5097 | int status; | |
5098 | ||
5099 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5100 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5101 | if (status) |
5102 | goto out; | |
5103 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
5104 | if (status) |
5105 | goto out; | |
5106 | status = decode_putfh(&xdr); | |
5107 | if (status) | |
5108 | goto out; | |
5109 | status = decode_close(&xdr, res); | |
516a6af6 TM |
5110 | if (status != 0) |
5111 | goto out; | |
5112 | /* | |
5113 | * Note: Server may do delete on close for this file | |
5114 | * in which case the getattr call will fail with | |
5115 | * an ESTALE error. Shouldn't be a problem, | |
5116 | * though, since fattr->valid will remain unset. | |
5117 | */ | |
80e52ace TM |
5118 | decode_getfattr(&xdr, res->fattr, res->server, |
5119 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 | 5120 | out: |
05d564fe | 5121 | return status; |
1da177e4 LT |
5122 | } |
5123 | ||
5124 | /* | |
5125 | * Decode OPEN response | |
5126 | */ | |
8687b63a | 5127 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 5128 | { |
05d564fe AA |
5129 | struct xdr_stream xdr; |
5130 | struct compound_hdr hdr; | |
5131 | int status; | |
5132 | ||
5133 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5134 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5135 | if (status) |
5136 | goto out; | |
5137 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
5138 | if (status) |
5139 | goto out; | |
5140 | status = decode_putfh(&xdr); | |
5141 | if (status) | |
5142 | goto out; | |
5143 | status = decode_savefh(&xdr); | |
5144 | if (status) | |
5145 | goto out; | |
5146 | status = decode_open(&xdr, res); | |
56ae19f3 TM |
5147 | if (status) |
5148 | goto out; | |
9936781d | 5149 | if (decode_getfh(&xdr, &res->fh) != 0) |
1da177e4 | 5150 | goto out; |
80e52ace TM |
5151 | if (decode_getfattr(&xdr, res->f_attr, res->server, |
5152 | !RPC_IS_ASYNC(rqstp->rq_task)) != 0) | |
56ae19f3 | 5153 | goto out; |
365c8f58 | 5154 | if (decode_restorefh(&xdr) != 0) |
56ae19f3 | 5155 | goto out; |
80e52ace TM |
5156 | decode_getfattr(&xdr, res->dir_attr, res->server, |
5157 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 | 5158 | out: |
05d564fe | 5159 | return status; |
1da177e4 LT |
5160 | } |
5161 | ||
5162 | /* | |
5163 | * Decode OPEN_CONFIRM response | |
5164 | */ | |
8687b63a | 5165 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) |
1da177e4 | 5166 | { |
05d564fe AA |
5167 | struct xdr_stream xdr; |
5168 | struct compound_hdr hdr; | |
5169 | int status; | |
5170 | ||
5171 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5172 | status = decode_compound_hdr(&xdr, &hdr); | |
5173 | if (status) | |
5174 | goto out; | |
5175 | status = decode_putfh(&xdr); | |
5176 | if (status) | |
5177 | goto out; | |
5178 | status = decode_open_confirm(&xdr, res); | |
1da177e4 | 5179 | out: |
05d564fe | 5180 | return status; |
1da177e4 LT |
5181 | } |
5182 | ||
5183 | /* | |
5184 | * Decode OPEN response | |
5185 | */ | |
8687b63a | 5186 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 5187 | { |
05d564fe AA |
5188 | struct xdr_stream xdr; |
5189 | struct compound_hdr hdr; | |
5190 | int status; | |
5191 | ||
5192 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5193 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5194 | if (status) |
5195 | goto out; | |
5196 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
5197 | if (status) |
5198 | goto out; | |
5199 | status = decode_putfh(&xdr); | |
5200 | if (status) | |
5201 | goto out; | |
5202 | status = decode_open(&xdr, res); | |
5203 | if (status) | |
5204 | goto out; | |
80e52ace TM |
5205 | decode_getfattr(&xdr, res->f_attr, res->server, |
5206 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 | 5207 | out: |
05d564fe | 5208 | return status; |
1da177e4 LT |
5209 | } |
5210 | ||
5211 | /* | |
5212 | * Decode SETATTR response | |
5213 | */ | |
8687b63a | 5214 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) |
1da177e4 | 5215 | { |
05d564fe AA |
5216 | struct xdr_stream xdr; |
5217 | struct compound_hdr hdr; | |
5218 | int status; | |
5219 | ||
5220 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5221 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5222 | if (status) |
5223 | goto out; | |
5224 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
5225 | if (status) |
5226 | goto out; | |
5227 | status = decode_putfh(&xdr); | |
5228 | if (status) | |
5229 | goto out; | |
9e9ecc03 | 5230 | status = decode_setattr(&xdr); |
05d564fe AA |
5231 | if (status) |
5232 | goto out; | |
80e52ace TM |
5233 | decode_getfattr(&xdr, res->fattr, res->server, |
5234 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 | 5235 | out: |
05d564fe | 5236 | return status; |
1da177e4 LT |
5237 | } |
5238 | ||
5239 | /* | |
5240 | * Decode LOCK response | |
5241 | */ | |
8687b63a | 5242 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) |
1da177e4 LT |
5243 | { |
5244 | struct xdr_stream xdr; | |
5245 | struct compound_hdr hdr; | |
5246 | int status; | |
5247 | ||
5248 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5249 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5250 | if (status) |
5251 | goto out; | |
5252 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5253 | if (status) |
5254 | goto out; | |
5255 | status = decode_putfh(&xdr); | |
5256 | if (status) | |
5257 | goto out; | |
5258 | status = decode_lock(&xdr, res); | |
5259 | out: | |
5260 | return status; | |
5261 | } | |
5262 | ||
5263 | /* | |
5264 | * Decode LOCKT response | |
5265 | */ | |
8687b63a | 5266 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) |
1da177e4 LT |
5267 | { |
5268 | struct xdr_stream xdr; | |
5269 | struct compound_hdr hdr; | |
5270 | int status; | |
5271 | ||
5272 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5273 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5274 | if (status) |
5275 | goto out; | |
5276 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5277 | if (status) |
5278 | goto out; | |
5279 | status = decode_putfh(&xdr); | |
5280 | if (status) | |
5281 | goto out; | |
5282 | status = decode_lockt(&xdr, res); | |
5283 | out: | |
5284 | return status; | |
5285 | } | |
5286 | ||
5287 | /* | |
5288 | * Decode LOCKU response | |
5289 | */ | |
8687b63a | 5290 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) |
1da177e4 LT |
5291 | { |
5292 | struct xdr_stream xdr; | |
5293 | struct compound_hdr hdr; | |
5294 | int status; | |
5295 | ||
5296 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5297 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5298 | if (status) |
5299 | goto out; | |
5300 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5301 | if (status) |
5302 | goto out; | |
5303 | status = decode_putfh(&xdr); | |
5304 | if (status) | |
5305 | goto out; | |
5306 | status = decode_locku(&xdr, res); | |
5307 | out: | |
5308 | return status; | |
5309 | } | |
5310 | ||
d3c7b7cc TM |
5311 | static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, __be32 *p, void *dummy) |
5312 | { | |
5313 | struct xdr_stream xdr; | |
5314 | struct compound_hdr hdr; | |
5315 | int status; | |
5316 | ||
5317 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5318 | status = decode_compound_hdr(&xdr, &hdr); | |
5319 | if (!status) | |
5320 | status = decode_release_lockowner(&xdr); | |
5321 | return status; | |
5322 | } | |
5323 | ||
1da177e4 LT |
5324 | /* |
5325 | * Decode READLINK response | |
5326 | */ | |
f50c7000 BH |
5327 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, |
5328 | struct nfs4_readlink_res *res) | |
1da177e4 LT |
5329 | { |
5330 | struct xdr_stream xdr; | |
5331 | struct compound_hdr hdr; | |
5332 | int status; | |
5333 | ||
5334 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5335 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5336 | if (status) |
5337 | goto out; | |
5338 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5339 | if (status) |
5340 | goto out; | |
5341 | status = decode_putfh(&xdr); | |
5342 | if (status) | |
5343 | goto out; | |
5344 | status = decode_readlink(&xdr, rqstp); | |
5345 | out: | |
5346 | return status; | |
5347 | } | |
5348 | ||
5349 | /* | |
5350 | * Decode READDIR response | |
5351 | */ | |
8687b63a | 5352 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) |
1da177e4 LT |
5353 | { |
5354 | struct xdr_stream xdr; | |
5355 | struct compound_hdr hdr; | |
5356 | int status; | |
5357 | ||
5358 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5359 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5360 | if (status) |
5361 | goto out; | |
5362 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5363 | if (status) |
5364 | goto out; | |
5365 | status = decode_putfh(&xdr); | |
5366 | if (status) | |
5367 | goto out; | |
5368 | status = decode_readdir(&xdr, rqstp, res); | |
5369 | out: | |
5370 | return status; | |
5371 | } | |
5372 | ||
5373 | /* | |
5374 | * Decode Read response | |
5375 | */ | |
8687b63a | 5376 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) |
1da177e4 LT |
5377 | { |
5378 | struct xdr_stream xdr; | |
5379 | struct compound_hdr hdr; | |
5380 | int status; | |
5381 | ||
5382 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5383 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5384 | if (status) |
5385 | goto out; | |
5386 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5387 | if (status) |
5388 | goto out; | |
5389 | status = decode_putfh(&xdr); | |
5390 | if (status) | |
5391 | goto out; | |
5392 | status = decode_read(&xdr, rqstp, res); | |
5393 | if (!status) | |
5394 | status = res->count; | |
5395 | out: | |
5396 | return status; | |
5397 | } | |
5398 | ||
5399 | /* | |
5400 | * Decode WRITE response | |
5401 | */ | |
8687b63a | 5402 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
5403 | { |
5404 | struct xdr_stream xdr; | |
5405 | struct compound_hdr hdr; | |
5406 | int status; | |
5407 | ||
5408 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5409 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5410 | if (status) |
5411 | goto out; | |
5412 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5413 | if (status) |
5414 | goto out; | |
5415 | status = decode_putfh(&xdr); | |
5416 | if (status) | |
5417 | goto out; | |
5418 | status = decode_write(&xdr, res); | |
4f9838c7 TM |
5419 | if (status) |
5420 | goto out; | |
80e52ace TM |
5421 | decode_getfattr(&xdr, res->fattr, res->server, |
5422 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
5423 | if (!status) |
5424 | status = res->count; | |
5425 | out: | |
5426 | return status; | |
5427 | } | |
5428 | ||
5429 | /* | |
5430 | * Decode COMMIT response | |
5431 | */ | |
8687b63a | 5432 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
5433 | { |
5434 | struct xdr_stream xdr; | |
5435 | struct compound_hdr hdr; | |
5436 | int status; | |
5437 | ||
5438 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5439 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5440 | if (status) |
5441 | goto out; | |
5442 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
5443 | if (status) |
5444 | goto out; | |
5445 | status = decode_putfh(&xdr); | |
5446 | if (status) | |
5447 | goto out; | |
5448 | status = decode_commit(&xdr, res); | |
4f9838c7 TM |
5449 | if (status) |
5450 | goto out; | |
80e52ace TM |
5451 | decode_getfattr(&xdr, res->fattr, res->server, |
5452 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
5453 | out: |
5454 | return status; | |
5455 | } | |
5456 | ||
5457 | /* | |
8b173218 | 5458 | * Decode FSINFO response |
1da177e4 | 5459 | */ |
3dda5e43 BH |
5460 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, |
5461 | struct nfs4_fsinfo_res *res) | |
1da177e4 LT |
5462 | { |
5463 | struct xdr_stream xdr; | |
5464 | struct compound_hdr hdr; | |
5465 | int status; | |
5466 | ||
5467 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5468 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5469 | if (!status) |
5470 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5471 | if (!status) |
5472 | status = decode_putfh(&xdr); | |
5473 | if (!status) | |
3dda5e43 | 5474 | status = decode_fsinfo(&xdr, res->fsinfo); |
1da177e4 LT |
5475 | return status; |
5476 | } | |
5477 | ||
5478 | /* | |
8b173218 | 5479 | * Decode PATHCONF response |
1da177e4 | 5480 | */ |
d45b2989 BH |
5481 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, |
5482 | struct nfs4_pathconf_res *res) | |
1da177e4 LT |
5483 | { |
5484 | struct xdr_stream xdr; | |
5485 | struct compound_hdr hdr; | |
5486 | int status; | |
5487 | ||
5488 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5489 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5490 | if (!status) |
5491 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5492 | if (!status) |
5493 | status = decode_putfh(&xdr); | |
5494 | if (!status) | |
d45b2989 | 5495 | status = decode_pathconf(&xdr, res->pathconf); |
1da177e4 LT |
5496 | return status; |
5497 | } | |
5498 | ||
5499 | /* | |
8b173218 | 5500 | * Decode STATFS response |
1da177e4 | 5501 | */ |
24ad148a BH |
5502 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, |
5503 | struct nfs4_statfs_res *res) | |
1da177e4 LT |
5504 | { |
5505 | struct xdr_stream xdr; | |
5506 | struct compound_hdr hdr; | |
5507 | int status; | |
5508 | ||
5509 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5510 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5511 | if (!status) |
5512 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
5513 | if (!status) |
5514 | status = decode_putfh(&xdr); | |
5515 | if (!status) | |
24ad148a | 5516 | status = decode_statfs(&xdr, res->fsstat); |
1da177e4 LT |
5517 | return status; |
5518 | } | |
5519 | ||
5520 | /* | |
8b173218 | 5521 | * Decode GETATTR_BITMAP response |
1da177e4 | 5522 | */ |
8687b63a | 5523 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) |
1da177e4 LT |
5524 | { |
5525 | struct xdr_stream xdr; | |
5526 | struct compound_hdr hdr; | |
5527 | int status; | |
5528 | ||
5529 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
9b7b9fcc AA |
5530 | status = decode_compound_hdr(&xdr, &hdr); |
5531 | if (status) | |
5532 | goto out; | |
5533 | status = decode_sequence(&xdr, &res->seq_res, req); | |
5534 | if (status) | |
1da177e4 LT |
5535 | goto out; |
5536 | if ((status = decode_putfh(&xdr)) != 0) | |
5537 | goto out; | |
5538 | status = decode_server_caps(&xdr, res); | |
5539 | out: | |
5540 | return status; | |
5541 | } | |
5542 | ||
5543 | /* | |
5544 | * Decode RENEW response | |
5545 | */ | |
8687b63a | 5546 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) |
1da177e4 LT |
5547 | { |
5548 | struct xdr_stream xdr; | |
5549 | struct compound_hdr hdr; | |
5550 | int status; | |
5551 | ||
5552 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5553 | status = decode_compound_hdr(&xdr, &hdr); | |
5554 | if (!status) | |
5555 | status = decode_renew(&xdr); | |
5556 | return status; | |
5557 | } | |
5558 | ||
5559 | /* | |
8b173218 | 5560 | * Decode SETCLIENTID response |
1da177e4 | 5561 | */ |
8687b63a | 5562 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, |
bb8b27e5 | 5563 | struct nfs4_setclientid_res *res) |
1da177e4 LT |
5564 | { |
5565 | struct xdr_stream xdr; | |
5566 | struct compound_hdr hdr; | |
5567 | int status; | |
5568 | ||
5569 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5570 | status = decode_compound_hdr(&xdr, &hdr); | |
5571 | if (!status) | |
bb8b27e5 | 5572 | status = decode_setclientid(&xdr, res); |
1da177e4 LT |
5573 | return status; |
5574 | } | |
5575 | ||
5576 | /* | |
8b173218 | 5577 | * Decode SETCLIENTID_CONFIRM response |
1da177e4 | 5578 | */ |
8687b63a | 5579 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
5580 | { |
5581 | struct xdr_stream xdr; | |
5582 | struct compound_hdr hdr; | |
5583 | int status; | |
5584 | ||
5585 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5586 | status = decode_compound_hdr(&xdr, &hdr); | |
5587 | if (!status) | |
5588 | status = decode_setclientid_confirm(&xdr); | |
5589 | if (!status) | |
5590 | status = decode_putrootfh(&xdr); | |
5591 | if (!status) | |
5592 | status = decode_fsinfo(&xdr, fsinfo); | |
1da177e4 LT |
5593 | return status; |
5594 | } | |
5595 | ||
5596 | /* | |
8b173218 | 5597 | * Decode DELEGRETURN response |
1da177e4 | 5598 | */ |
8687b63a | 5599 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) |
1da177e4 LT |
5600 | { |
5601 | struct xdr_stream xdr; | |
5602 | struct compound_hdr hdr; | |
5603 | int status; | |
5604 | ||
5605 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5606 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5607 | if (status) |
5608 | goto out; | |
5609 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
5610 | if (status) | |
fa178f29 TM |
5611 | goto out; |
5612 | status = decode_putfh(&xdr); | |
5613 | if (status != 0) | |
5614 | goto out; | |
5615 | status = decode_delegreturn(&xdr); | |
556ae3bb JL |
5616 | if (status != 0) |
5617 | goto out; | |
80e52ace TM |
5618 | decode_getfattr(&xdr, res->fattr, res->server, |
5619 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
fa178f29 | 5620 | out: |
1da177e4 LT |
5621 | return status; |
5622 | } | |
5623 | ||
683b57b4 | 5624 | /* |
8b173218 | 5625 | * Decode FS_LOCATIONS response |
683b57b4 | 5626 | */ |
22958463 BH |
5627 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, |
5628 | struct nfs4_fs_locations_res *res) | |
683b57b4 TM |
5629 | { |
5630 | struct xdr_stream xdr; | |
5631 | struct compound_hdr hdr; | |
5632 | int status; | |
5633 | ||
5634 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
5635 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
5636 | if (status) |
5637 | goto out; | |
5638 | status = decode_sequence(&xdr, &res->seq_res, req); | |
5639 | if (status) | |
683b57b4 TM |
5640 | goto out; |
5641 | if ((status = decode_putfh(&xdr)) != 0) | |
5642 | goto out; | |
5643 | if ((status = decode_lookup(&xdr)) != 0) | |
5644 | goto out; | |
5645 | xdr_enter_page(&xdr, PAGE_SIZE); | |
22958463 | 5646 | status = decode_getfattr(&xdr, &res->fs_locations->fattr, |
80e52ace TM |
5647 | res->fs_locations->server, |
5648 | !RPC_IS_ASYNC(req->rq_task)); | |
683b57b4 TM |
5649 | out: |
5650 | return status; | |
5651 | } | |
5652 | ||
99fe60d0 BH |
5653 | #if defined(CONFIG_NFS_V4_1) |
5654 | /* | |
8b173218 | 5655 | * Decode EXCHANGE_ID response |
99fe60d0 BH |
5656 | */ |
5657 | static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, | |
5658 | void *res) | |
5659 | { | |
5660 | struct xdr_stream xdr; | |
5661 | struct compound_hdr hdr; | |
5662 | int status; | |
5663 | ||
5664 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5665 | status = decode_compound_hdr(&xdr, &hdr); | |
5666 | if (!status) | |
5667 | status = decode_exchange_id(&xdr, res); | |
5668 | return status; | |
5669 | } | |
2050f0cc | 5670 | |
fc931582 | 5671 | /* |
8b173218 | 5672 | * Decode CREATE_SESSION response |
fc931582 AA |
5673 | */ |
5674 | static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, | |
5675 | struct nfs41_create_session_res *res) | |
5676 | { | |
5677 | struct xdr_stream xdr; | |
5678 | struct compound_hdr hdr; | |
5679 | int status; | |
5680 | ||
5681 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5682 | status = decode_compound_hdr(&xdr, &hdr); | |
5683 | if (!status) | |
5684 | status = decode_create_session(&xdr, res); | |
5685 | return status; | |
5686 | } | |
5687 | ||
0f3e66c6 | 5688 | /* |
8b173218 | 5689 | * Decode DESTROY_SESSION response |
0f3e66c6 AA |
5690 | */ |
5691 | static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, | |
5692 | void *dummy) | |
5693 | { | |
5694 | struct xdr_stream xdr; | |
5695 | struct compound_hdr hdr; | |
5696 | int status; | |
5697 | ||
5698 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5699 | status = decode_compound_hdr(&xdr, &hdr); | |
5700 | if (!status) | |
5701 | status = decode_destroy_session(&xdr, dummy); | |
5702 | return status; | |
5703 | } | |
5704 | ||
fc01cea9 | 5705 | /* |
8b173218 | 5706 | * Decode SEQUENCE response |
fc01cea9 AA |
5707 | */ |
5708 | static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, | |
5709 | struct nfs4_sequence_res *res) | |
5710 | { | |
5711 | struct xdr_stream xdr; | |
5712 | struct compound_hdr hdr; | |
5713 | int status; | |
5714 | ||
5715 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5716 | status = decode_compound_hdr(&xdr, &hdr); | |
5717 | if (!status) | |
5718 | status = decode_sequence(&xdr, res, rqstp); | |
5719 | return status; | |
5720 | } | |
5721 | ||
2050f0cc | 5722 | /* |
8b173218 | 5723 | * Decode GET_LEASE_TIME response |
2050f0cc AA |
5724 | */ |
5725 | static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, | |
5726 | struct nfs4_get_lease_time_res *res) | |
5727 | { | |
5728 | struct xdr_stream xdr; | |
5729 | struct compound_hdr hdr; | |
5730 | int status; | |
5731 | ||
5732 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5733 | status = decode_compound_hdr(&xdr, &hdr); | |
5734 | if (!status) | |
5735 | status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); | |
5736 | if (!status) | |
5737 | status = decode_putrootfh(&xdr); | |
5738 | if (!status) | |
5739 | status = decode_fsinfo(&xdr, res->lr_fsinfo); | |
5740 | return status; | |
5741 | } | |
18019753 RL |
5742 | |
5743 | /* | |
5744 | * Decode RECLAIM_COMPLETE response | |
5745 | */ | |
5746 | static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, uint32_t *p, | |
5747 | struct nfs41_reclaim_complete_res *res) | |
5748 | { | |
5749 | struct xdr_stream xdr; | |
5750 | struct compound_hdr hdr; | |
5751 | int status; | |
5752 | ||
5753 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
5754 | status = decode_compound_hdr(&xdr, &hdr); | |
5755 | if (!status) | |
5756 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
5757 | if (!status) | |
5758 | status = decode_reclaim_complete(&xdr, (void *)NULL); | |
5759 | return status; | |
5760 | } | |
99fe60d0 BH |
5761 | #endif /* CONFIG_NFS_V4_1 */ |
5762 | ||
0dbb4c67 | 5763 | __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) |
1da177e4 LT |
5764 | { |
5765 | uint32_t bitmap[2] = {0}; | |
5766 | uint32_t len; | |
5767 | ||
5768 | if (!*p++) { | |
5769 | if (!*p) | |
5770 | return ERR_PTR(-EAGAIN); | |
5771 | entry->eof = 1; | |
5772 | return ERR_PTR(-EBADCOOKIE); | |
5773 | } | |
5774 | ||
5775 | entry->prev_cookie = entry->cookie; | |
5776 | p = xdr_decode_hyper(p, &entry->cookie); | |
5777 | entry->len = ntohl(*p++); | |
5778 | entry->name = (const char *) p; | |
5779 | p += XDR_QUADLEN(entry->len); | |
5780 | ||
5781 | /* | |
5782 | * In case the server doesn't return an inode number, | |
5783 | * we fake one here. (We don't use inode number 0, | |
5784 | * since glibc seems to choke on it...) | |
5785 | */ | |
5786 | entry->ino = 1; | |
5787 | ||
5788 | len = ntohl(*p++); /* bitmap length */ | |
5789 | if (len-- > 0) { | |
5790 | bitmap[0] = ntohl(*p++); | |
5791 | if (len-- > 0) { | |
5792 | bitmap[1] = ntohl(*p++); | |
5793 | p += len; | |
5794 | } | |
5795 | } | |
5796 | len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ | |
5797 | if (len > 0) { | |
97d312d0 MN |
5798 | if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { |
5799 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; | |
5800 | /* Ignore the return value of rdattr_error for now */ | |
5801 | p++; | |
5802 | len--; | |
5803 | } | |
1da177e4 LT |
5804 | if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) |
5805 | xdr_decode_hyper(p, &entry->ino); | |
5806 | else if (bitmap[0] == FATTR4_WORD0_FILEID) | |
5807 | xdr_decode_hyper(p, &entry->ino); | |
5808 | p += len; | |
5809 | } | |
5810 | ||
5811 | entry->eof = !p[0] && p[1]; | |
5812 | return p; | |
5813 | } | |
5814 | ||
5815 | /* | |
5816 | * We need to translate between nfs status return values and | |
5817 | * the local errno values which may not be the same. | |
5818 | */ | |
5819 | static struct { | |
5820 | int stat; | |
5821 | int errno; | |
5822 | } nfs_errtbl[] = { | |
5823 | { NFS4_OK, 0 }, | |
856dff3d BH |
5824 | { NFS4ERR_PERM, -EPERM }, |
5825 | { NFS4ERR_NOENT, -ENOENT }, | |
5826 | { NFS4ERR_IO, -errno_NFSERR_IO}, | |
5827 | { NFS4ERR_NXIO, -ENXIO }, | |
5828 | { NFS4ERR_ACCESS, -EACCES }, | |
5829 | { NFS4ERR_EXIST, -EEXIST }, | |
5830 | { NFS4ERR_XDEV, -EXDEV }, | |
5831 | { NFS4ERR_NOTDIR, -ENOTDIR }, | |
5832 | { NFS4ERR_ISDIR, -EISDIR }, | |
5833 | { NFS4ERR_INVAL, -EINVAL }, | |
5834 | { NFS4ERR_FBIG, -EFBIG }, | |
5835 | { NFS4ERR_NOSPC, -ENOSPC }, | |
5836 | { NFS4ERR_ROFS, -EROFS }, | |
5837 | { NFS4ERR_MLINK, -EMLINK }, | |
5838 | { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, | |
5839 | { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, | |
5840 | { NFS4ERR_DQUOT, -EDQUOT }, | |
5841 | { NFS4ERR_STALE, -ESTALE }, | |
5842 | { NFS4ERR_BADHANDLE, -EBADHANDLE }, | |
5843 | { NFS4ERR_BADOWNER, -EINVAL }, | |
5844 | { NFS4ERR_BADNAME, -EINVAL }, | |
5845 | { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, | |
5846 | { NFS4ERR_NOTSUPP, -ENOTSUPP }, | |
5847 | { NFS4ERR_TOOSMALL, -ETOOSMALL }, | |
fdcb4577 | 5848 | { NFS4ERR_SERVERFAULT, -EREMOTEIO }, |
856dff3d BH |
5849 | { NFS4ERR_BADTYPE, -EBADTYPE }, |
5850 | { NFS4ERR_LOCKED, -EAGAIN }, | |
856dff3d BH |
5851 | { NFS4ERR_SYMLINK, -ELOOP }, |
5852 | { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, | |
5853 | { NFS4ERR_DEADLOCK, -EDEADLK }, | |
5854 | { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs | |
1da177e4 LT |
5855 | * to be handled by a |
5856 | * middle-layer. | |
5857 | */ | |
856dff3d | 5858 | { -1, -EIO } |
1da177e4 LT |
5859 | }; |
5860 | ||
5861 | /* | |
5862 | * Convert an NFS error code to a local one. | |
5863 | * This one is used jointly by NFSv2 and NFSv3. | |
5864 | */ | |
5865 | static int | |
0a8ea437 | 5866 | nfs4_stat_to_errno(int stat) |
1da177e4 LT |
5867 | { |
5868 | int i; | |
5869 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { | |
5870 | if (nfs_errtbl[i].stat == stat) | |
5871 | return nfs_errtbl[i].errno; | |
5872 | } | |
5873 | if (stat <= 10000 || stat > 10100) { | |
5874 | /* The server is looney tunes. */ | |
fdcb4577 | 5875 | return -EREMOTEIO; |
1da177e4 LT |
5876 | } |
5877 | /* If we cannot translate the error, the recovery routines should | |
5878 | * handle it. | |
5879 | * Note: remaining NFSv4 error codes have values > 10000, so should | |
5880 | * not conflict with native Linux error codes. | |
5881 | */ | |
856dff3d | 5882 | return -stat; |
1da177e4 LT |
5883 | } |
5884 | ||
1da177e4 LT |
5885 | #define PROC(proc, argtype, restype) \ |
5886 | [NFSPROC4_CLNT_##proc] = { \ | |
5887 | .p_proc = NFSPROC4_COMPOUND, \ | |
5888 | .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ | |
5889 | .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ | |
2bea90d4 CL |
5890 | .p_arglen = NFS4_##argtype##_sz, \ |
5891 | .p_replen = NFS4_##restype##_sz, \ | |
cc0175c1 CL |
5892 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
5893 | .p_name = #proc, \ | |
05d564fe | 5894 | } |
1da177e4 LT |
5895 | |
5896 | struct rpc_procinfo nfs4_procedures[] = { | |
5897 | PROC(READ, enc_read, dec_read), | |
5898 | PROC(WRITE, enc_write, dec_write), | |
5899 | PROC(COMMIT, enc_commit, dec_commit), | |
5900 | PROC(OPEN, enc_open, dec_open), | |
5901 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), | |
5902 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), | |
5903 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), | |
5904 | PROC(CLOSE, enc_close, dec_close), | |
5905 | PROC(SETATTR, enc_setattr, dec_setattr), | |
5906 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), | |
5907 | PROC(RENEW, enc_renew, dec_renew), | |
5908 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), | |
5909 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), | |
5910 | PROC(LOCK, enc_lock, dec_lock), | |
5911 | PROC(LOCKT, enc_lockt, dec_lockt), | |
5912 | PROC(LOCKU, enc_locku, dec_locku), | |
5913 | PROC(ACCESS, enc_access, dec_access), | |
5914 | PROC(GETATTR, enc_getattr, dec_getattr), | |
5915 | PROC(LOOKUP, enc_lookup, dec_lookup), | |
5916 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), | |
5917 | PROC(REMOVE, enc_remove, dec_remove), | |
5918 | PROC(RENAME, enc_rename, dec_rename), | |
5919 | PROC(LINK, enc_link, dec_link), | |
5920 | PROC(SYMLINK, enc_symlink, dec_symlink), | |
5921 | PROC(CREATE, enc_create, dec_create), | |
5922 | PROC(PATHCONF, enc_pathconf, dec_pathconf), | |
5923 | PROC(STATFS, enc_statfs, dec_statfs), | |
5924 | PROC(READLINK, enc_readlink, dec_readlink), | |
5925 | PROC(READDIR, enc_readdir, dec_readdir), | |
5926 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), | |
5927 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), | |
029d105e | 5928 | PROC(GETACL, enc_getacl, dec_getacl), |
23ec6965 | 5929 | PROC(SETACL, enc_setacl, dec_setacl), |
683b57b4 | 5930 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), |
d3c7b7cc | 5931 | PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), |
99fe60d0 BH |
5932 | #if defined(CONFIG_NFS_V4_1) |
5933 | PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), | |
fc931582 | 5934 | PROC(CREATE_SESSION, enc_create_session, dec_create_session), |
0f3e66c6 | 5935 | PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), |
fc01cea9 | 5936 | PROC(SEQUENCE, enc_sequence, dec_sequence), |
2050f0cc | 5937 | PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), |
18019753 | 5938 | PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), |
99fe60d0 | 5939 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 LT |
5940 | }; |
5941 | ||
5942 | struct rpc_version nfs_version4 = { | |
5943 | .number = 4, | |
e8c96f8c | 5944 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
1da177e4 LT |
5945 | .procs = nfs4_procedures |
5946 | }; | |
5947 | ||
5948 | /* | |
5949 | * Local variables: | |
5950 | * c-basic-offset: 8 | |
5951 | * End: | |
5952 | */ |