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1da177e4 LT |
1 | /* |
2 | * fs/nfs/nfs4xdr.c | |
3 | * | |
4 | * Client-side XDR for NFSv4. | |
5 | * | |
6 | * Copyright (c) 2002 The Regents of the University of Michigan. | |
7 | * All rights reserved. | |
8 | * | |
9 | * Kendrick Smith <kmsmith@umich.edu> | |
10 | * Andy Adamson <andros@umich.edu> | |
6c0195a4 | 11 | * |
1da177e4 LT |
12 | * Redistribution and use in source and binary forms, with or without |
13 | * modification, are permitted provided that the following conditions | |
14 | * are met: | |
15 | * | |
16 | * 1. Redistributions of source code must retain the above copyright | |
17 | * notice, this list of conditions and the following disclaimer. | |
18 | * 2. Redistributions in binary form must reproduce the above copyright | |
19 | * notice, this list of conditions and the following disclaimer in the | |
20 | * documentation and/or other materials provided with the distribution. | |
21 | * 3. Neither the name of the University nor the names of its | |
22 | * contributors may be used to endorse or promote products derived | |
23 | * from this software without specific prior written permission. | |
24 | * | |
25 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
26 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
27 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
28 | * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
29 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
32 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
33 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
34 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
35 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
36 | */ | |
37 | ||
38 | #include <linux/param.h> | |
39 | #include <linux/time.h> | |
40 | #include <linux/mm.h> | |
41 | #include <linux/slab.h> | |
42 | #include <linux/utsname.h> | |
43 | #include <linux/errno.h> | |
44 | #include <linux/string.h> | |
45 | #include <linux/in.h> | |
46 | #include <linux/pagemap.h> | |
47 | #include <linux/proc_fs.h> | |
48 | #include <linux/kdev_t.h> | |
49 | #include <linux/sunrpc/clnt.h> | |
50 | #include <linux/nfs.h> | |
51 | #include <linux/nfs4.h> | |
52 | #include <linux/nfs_fs.h> | |
53 | #include <linux/nfs_idmap.h> | |
4ce79717 | 54 | #include "nfs4_fs.h" |
1da177e4 LT |
55 | |
56 | #define NFSDBG_FACILITY NFSDBG_XDR | |
57 | ||
58 | /* Mapping from NFS error code to "errno" error code. */ | |
59 | #define errno_NFSERR_IO EIO | |
60 | ||
0a8ea437 | 61 | static int nfs4_stat_to_errno(int); |
1da177e4 LT |
62 | |
63 | /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ | |
64 | #ifdef DEBUG | |
65 | #define NFS4_MAXTAGLEN 20 | |
66 | #else | |
67 | #define NFS4_MAXTAGLEN 0 | |
68 | #endif | |
69 | ||
6c0195a4 | 70 | /* lock,open owner id: |
9f958ab8 | 71 | * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) |
1da177e4 | 72 | */ |
9f958ab8 TM |
73 | #define open_owner_id_maxsz (1 + 4) |
74 | #define lock_owner_id_maxsz (1 + 4) | |
9104a55d | 75 | #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
1da177e4 LT |
76 | #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) |
77 | #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) | |
78 | #define op_encode_hdr_maxsz (1) | |
79 | #define op_decode_hdr_maxsz (2) | |
9104a55d TM |
80 | #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) |
81 | #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
82 | #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
83 | #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1da177e4 LT |
84 | #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ |
85 | (NFS4_FHSIZE >> 2)) | |
86 | #define decode_putfh_maxsz (op_decode_hdr_maxsz) | |
87 | #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) | |
88 | #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) | |
89 | #define encode_getfh_maxsz (op_encode_hdr_maxsz) | |
90 | #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ | |
91 | ((3+NFS4_FHSIZE) >> 2)) | |
96928206 BF |
92 | #define nfs4_fattr_bitmap_maxsz 3 |
93 | #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) | |
1da177e4 LT |
94 | #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) |
95 | #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) | |
bd625ba8 TM |
96 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
97 | #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
96928206 BF |
98 | /* This is based on getfattr, which uses the most attributes: */ |
99 | #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ | |
bd625ba8 | 100 | 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) |
96928206 BF |
101 | #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ |
102 | nfs4_fattr_value_maxsz) | |
103 | #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) | |
9104a55d TM |
104 | #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ |
105 | 1 + 2 + 1 + \ | |
106 | nfs4_owner_maxsz + \ | |
107 | nfs4_group_maxsz + \ | |
108 | 4 + 4) | |
1da177e4 LT |
109 | #define encode_savefh_maxsz (op_encode_hdr_maxsz) |
110 | #define decode_savefh_maxsz (op_decode_hdr_maxsz) | |
56ae19f3 TM |
111 | #define encode_restorefh_maxsz (op_encode_hdr_maxsz) |
112 | #define decode_restorefh_maxsz (op_decode_hdr_maxsz) | |
2f42b5d0 | 113 | #define encode_fsinfo_maxsz (encode_getattr_maxsz) |
1da177e4 LT |
114 | #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) |
115 | #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) | |
116 | #define decode_renew_maxsz (op_decode_hdr_maxsz) | |
117 | #define encode_setclientid_maxsz \ | |
118 | (op_encode_hdr_maxsz + \ | |
cc38bac3 CL |
119 | XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ |
120 | XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ | |
121 | 1 /* sc_prog */ + \ | |
122 | XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ | |
123 | XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ | |
124 | 1) /* sc_cb_ident */ | |
1da177e4 LT |
125 | #define decode_setclientid_maxsz \ |
126 | (op_decode_hdr_maxsz + \ | |
127 | 2 + \ | |
128 | 1024) /* large value for CLID_INUSE */ | |
129 | #define encode_setclientid_confirm_maxsz \ | |
130 | (op_encode_hdr_maxsz + \ | |
131 | 3 + (NFS4_VERIFIER_SIZE >> 2)) | |
132 | #define decode_setclientid_confirm_maxsz \ | |
133 | (op_decode_hdr_maxsz) | |
e6889620 TM |
134 | #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) |
135 | #define decode_lookup_maxsz (op_decode_hdr_maxsz) | |
2cebf828 TM |
136 | #define encode_share_access_maxsz \ |
137 | (2) | |
9104a55d | 138 | #define encode_createmode_maxsz (1 + encode_attrs_maxsz) |
2cebf828 TM |
139 | #define encode_opentype_maxsz (1 + encode_createmode_maxsz) |
140 | #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) | |
141 | #define encode_open_maxsz (op_encode_hdr_maxsz + \ | |
142 | 2 + encode_share_access_maxsz + 2 + \ | |
143 | open_owner_id_maxsz + \ | |
144 | encode_opentype_maxsz + \ | |
145 | encode_claim_null_maxsz) | |
146 | #define decode_ace_maxsz (3 + nfs4_owner_maxsz) | |
9104a55d | 147 | #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ |
2cebf828 TM |
148 | decode_ace_maxsz) |
149 | #define decode_change_info_maxsz (5) | |
150 | #define decode_open_maxsz (op_decode_hdr_maxsz + \ | |
9104a55d | 151 | decode_stateid_maxsz + \ |
2cebf828 TM |
152 | decode_change_info_maxsz + 1 + \ |
153 | nfs4_fattr_bitmap_maxsz + \ | |
154 | decode_delegation_maxsz) | |
9104a55d TM |
155 | #define encode_open_confirm_maxsz \ |
156 | (op_encode_hdr_maxsz + \ | |
157 | encode_stateid_maxsz + 1) | |
158 | #define decode_open_confirm_maxsz \ | |
159 | (op_decode_hdr_maxsz + \ | |
160 | decode_stateid_maxsz) | |
161 | #define encode_open_downgrade_maxsz \ | |
162 | (op_encode_hdr_maxsz + \ | |
163 | encode_stateid_maxsz + 1 + \ | |
164 | encode_share_access_maxsz) | |
165 | #define decode_open_downgrade_maxsz \ | |
166 | (op_decode_hdr_maxsz + \ | |
167 | decode_stateid_maxsz) | |
168 | #define encode_close_maxsz (op_encode_hdr_maxsz + \ | |
169 | 1 + encode_stateid_maxsz) | |
170 | #define decode_close_maxsz (op_decode_hdr_maxsz + \ | |
171 | decode_stateid_maxsz) | |
172 | #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ | |
173 | encode_stateid_maxsz + \ | |
174 | encode_attrs_maxsz) | |
175 | #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ | |
176 | nfs4_fattr_bitmap_maxsz) | |
177 | #define encode_read_maxsz (op_encode_hdr_maxsz + \ | |
178 | encode_stateid_maxsz + 3) | |
179 | #define decode_read_maxsz (op_decode_hdr_maxsz + 2) | |
180 | #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ | |
181 | 2 + encode_verifier_maxsz + 5) | |
182 | #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ | |
183 | decode_verifier_maxsz) | |
184 | #define encode_readlink_maxsz (op_encode_hdr_maxsz) | |
185 | #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) | |
186 | #define encode_write_maxsz (op_encode_hdr_maxsz + \ | |
187 | encode_stateid_maxsz + 4) | |
188 | #define decode_write_maxsz (op_decode_hdr_maxsz + \ | |
189 | 2 + decode_verifier_maxsz) | |
190 | #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) | |
191 | #define decode_commit_maxsz (op_decode_hdr_maxsz + \ | |
192 | decode_verifier_maxsz) | |
1da177e4 LT |
193 | #define encode_remove_maxsz (op_encode_hdr_maxsz + \ |
194 | nfs4_name_maxsz) | |
6ce18391 BH |
195 | #define decode_remove_maxsz (op_decode_hdr_maxsz + \ |
196 | decode_change_info_maxsz) | |
1da177e4 LT |
197 | #define encode_rename_maxsz (op_encode_hdr_maxsz + \ |
198 | 2 * nfs4_name_maxsz) | |
6ce18391 BH |
199 | #define decode_rename_maxsz (op_decode_hdr_maxsz + \ |
200 | decode_change_info_maxsz + \ | |
201 | decode_change_info_maxsz) | |
1da177e4 LT |
202 | #define encode_link_maxsz (op_encode_hdr_maxsz + \ |
203 | nfs4_name_maxsz) | |
6ce18391 | 204 | #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) |
9104a55d TM |
205 | #define encode_lock_maxsz (op_encode_hdr_maxsz + \ |
206 | 7 + \ | |
207 | 1 + encode_stateid_maxsz + 8) | |
208 | #define decode_lock_denied_maxsz \ | |
209 | (8 + decode_lockowner_maxsz) | |
210 | #define decode_lock_maxsz (op_decode_hdr_maxsz + \ | |
211 | decode_lock_denied_maxsz) | |
212 | #define encode_lockt_maxsz (op_encode_hdr_maxsz + 12) | |
213 | #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ | |
214 | decode_lock_denied_maxsz) | |
215 | #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ | |
216 | encode_stateid_maxsz + \ | |
217 | 4) | |
218 | #define decode_locku_maxsz (op_decode_hdr_maxsz + \ | |
219 | decode_stateid_maxsz) | |
220 | #define encode_access_maxsz (op_encode_hdr_maxsz + 1) | |
221 | #define decode_access_maxsz (op_decode_hdr_maxsz + 2) | |
1da177e4 LT |
222 | #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ |
223 | 1 + nfs4_name_maxsz + \ | |
94a6d753 | 224 | 1 + \ |
96928206 | 225 | nfs4_fattr_maxsz) |
1da177e4 LT |
226 | #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) |
227 | #define encode_create_maxsz (op_encode_hdr_maxsz + \ | |
9104a55d TM |
228 | 1 + 2 + nfs4_name_maxsz + \ |
229 | encode_attrs_maxsz) | |
2cebf828 TM |
230 | #define decode_create_maxsz (op_decode_hdr_maxsz + \ |
231 | decode_change_info_maxsz + \ | |
232 | nfs4_fattr_bitmap_maxsz) | |
9104a55d TM |
233 | #define encode_statfs_maxsz (encode_getattr_maxsz) |
234 | #define decode_statfs_maxsz (decode_getattr_maxsz) | |
1da177e4 LT |
235 | #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) |
236 | #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) | |
9104a55d TM |
237 | #define encode_getacl_maxsz (encode_getattr_maxsz) |
238 | #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ | |
239 | nfs4_fattr_bitmap_maxsz + 1) | |
240 | #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ | |
241 | encode_stateid_maxsz + 3) | |
242 | #define decode_setacl_maxsz (decode_setattr_maxsz) | |
e6889620 TM |
243 | #define encode_fs_locations_maxsz \ |
244 | (encode_getattr_maxsz) | |
245 | #define decode_fs_locations_maxsz \ | |
246 | (0) | |
9b7b9fcc AA |
247 | |
248 | #if defined(CONFIG_NFS_V4_1) | |
99fe60d0 BH |
249 | #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ |
250 | encode_verifier_maxsz + \ | |
251 | 1 /* co_ownerid.len */ + \ | |
252 | XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ | |
253 | 1 /* flags */ + \ | |
254 | 1 /* spa_how */ + \ | |
255 | 0 /* SP4_NONE (for now) */ + \ | |
256 | 1 /* zero implemetation id array */) | |
257 | #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ | |
258 | 2 /* eir_clientid */ + \ | |
259 | 1 /* eir_sequenceid */ + \ | |
260 | 1 /* eir_flags */ + \ | |
261 | 1 /* spr_how */ + \ | |
262 | 0 /* SP4_NONE (for now) */ + \ | |
263 | 2 /* eir_server_owner.so_minor_id */ + \ | |
264 | /* eir_server_owner.so_major_id<> */ \ | |
265 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ | |
266 | /* eir_server_scope<> */ \ | |
267 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ | |
268 | 1 /* eir_server_impl_id array length */ + \ | |
269 | 0 /* ignored eir_server_impl_id contents */) | |
9b7b9fcc AA |
270 | #define encode_sequence_maxsz 0 /* stub */ |
271 | #define decode_sequence_maxsz 0 /* stub */ | |
272 | #else /* CONFIG_NFS_V4_1 */ | |
273 | #define encode_sequence_maxsz 0 | |
274 | #define decode_sequence_maxsz 0 | |
275 | #endif /* CONFIG_NFS_V4_1 */ | |
276 | ||
1da177e4 LT |
277 | #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ |
278 | #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ | |
279 | #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 280 | encode_sequence_maxsz + \ |
1da177e4 | 281 | encode_putfh_maxsz + \ |
9104a55d | 282 | encode_read_maxsz) |
1da177e4 | 283 | #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 284 | decode_sequence_maxsz + \ |
1da177e4 | 285 | decode_putfh_maxsz + \ |
9104a55d | 286 | decode_read_maxsz) |
1da177e4 | 287 | #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 288 | encode_sequence_maxsz + \ |
1da177e4 | 289 | encode_putfh_maxsz + \ |
9104a55d | 290 | encode_readlink_maxsz) |
1da177e4 | 291 | #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 292 | decode_sequence_maxsz + \ |
1da177e4 | 293 | decode_putfh_maxsz + \ |
9104a55d | 294 | decode_readlink_maxsz) |
1da177e4 | 295 | #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 296 | encode_sequence_maxsz + \ |
1da177e4 | 297 | encode_putfh_maxsz + \ |
9104a55d | 298 | encode_readdir_maxsz) |
1da177e4 | 299 | #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 300 | decode_sequence_maxsz + \ |
1da177e4 | 301 | decode_putfh_maxsz + \ |
9104a55d | 302 | decode_readdir_maxsz) |
1da177e4 | 303 | #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 304 | encode_sequence_maxsz + \ |
1da177e4 | 305 | encode_putfh_maxsz + \ |
9104a55d | 306 | encode_write_maxsz + \ |
4f9838c7 | 307 | encode_getattr_maxsz) |
1da177e4 | 308 | #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 309 | decode_sequence_maxsz + \ |
1da177e4 | 310 | decode_putfh_maxsz + \ |
9104a55d | 311 | decode_write_maxsz + \ |
4f9838c7 | 312 | decode_getattr_maxsz) |
1da177e4 | 313 | #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 314 | encode_sequence_maxsz + \ |
1da177e4 | 315 | encode_putfh_maxsz + \ |
9104a55d | 316 | encode_commit_maxsz + \ |
4f9838c7 | 317 | encode_getattr_maxsz) |
1da177e4 | 318 | #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 319 | decode_sequence_maxsz + \ |
1da177e4 | 320 | decode_putfh_maxsz + \ |
9104a55d | 321 | decode_commit_maxsz + \ |
4f9838c7 | 322 | decode_getattr_maxsz) |
1da177e4 | 323 | #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 324 | encode_sequence_maxsz + \ |
2cebf828 TM |
325 | encode_putfh_maxsz + \ |
326 | encode_savefh_maxsz + \ | |
327 | encode_open_maxsz + \ | |
328 | encode_getfh_maxsz + \ | |
329 | encode_getattr_maxsz + \ | |
330 | encode_restorefh_maxsz + \ | |
331 | encode_getattr_maxsz) | |
1da177e4 | 332 | #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 333 | decode_sequence_maxsz + \ |
2cebf828 TM |
334 | decode_putfh_maxsz + \ |
335 | decode_savefh_maxsz + \ | |
336 | decode_open_maxsz + \ | |
337 | decode_getfh_maxsz + \ | |
338 | decode_getattr_maxsz + \ | |
339 | decode_restorefh_maxsz + \ | |
340 | decode_getattr_maxsz) | |
9104a55d TM |
341 | #define NFS4_enc_open_confirm_sz \ |
342 | (compound_encode_hdr_maxsz + \ | |
343 | encode_putfh_maxsz + \ | |
344 | encode_open_confirm_maxsz) | |
345 | #define NFS4_dec_open_confirm_sz \ | |
346 | (compound_decode_hdr_maxsz + \ | |
347 | decode_putfh_maxsz + \ | |
348 | decode_open_confirm_maxsz) | |
1da177e4 | 349 | #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 350 | encode_sequence_maxsz + \ |
1da177e4 | 351 | encode_putfh_maxsz + \ |
2cebf828 TM |
352 | encode_open_maxsz + \ |
353 | encode_getattr_maxsz) | |
1da177e4 | 354 | #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 355 | decode_sequence_maxsz + \ |
1da177e4 | 356 | decode_putfh_maxsz + \ |
2cebf828 TM |
357 | decode_open_maxsz + \ |
358 | decode_getattr_maxsz) | |
1da177e4 LT |
359 | #define NFS4_enc_open_downgrade_sz \ |
360 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 361 | encode_sequence_maxsz + \ |
9104a55d TM |
362 | encode_putfh_maxsz + \ |
363 | encode_open_downgrade_maxsz + \ | |
364 | encode_getattr_maxsz) | |
1da177e4 LT |
365 | #define NFS4_dec_open_downgrade_sz \ |
366 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 367 | decode_sequence_maxsz + \ |
9104a55d TM |
368 | decode_putfh_maxsz + \ |
369 | decode_open_downgrade_maxsz + \ | |
370 | decode_getattr_maxsz) | |
371 | #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 372 | encode_sequence_maxsz + \ |
9104a55d TM |
373 | encode_putfh_maxsz + \ |
374 | encode_close_maxsz + \ | |
375 | encode_getattr_maxsz) | |
376 | #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 377 | decode_sequence_maxsz + \ |
9104a55d TM |
378 | decode_putfh_maxsz + \ |
379 | decode_close_maxsz + \ | |
380 | decode_getattr_maxsz) | |
381 | #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 382 | encode_sequence_maxsz + \ |
9104a55d TM |
383 | encode_putfh_maxsz + \ |
384 | encode_setattr_maxsz + \ | |
385 | encode_getattr_maxsz) | |
386 | #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 387 | decode_sequence_maxsz + \ |
9104a55d TM |
388 | decode_putfh_maxsz + \ |
389 | decode_setattr_maxsz + \ | |
390 | decode_getattr_maxsz) | |
1da177e4 | 391 | #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 392 | encode_sequence_maxsz + \ |
1da177e4 LT |
393 | encode_putfh_maxsz + \ |
394 | encode_fsinfo_maxsz) | |
395 | #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 396 | decode_sequence_maxsz + \ |
1da177e4 LT |
397 | decode_putfh_maxsz + \ |
398 | decode_fsinfo_maxsz) | |
399 | #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ | |
400 | encode_renew_maxsz) | |
401 | #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ | |
402 | decode_renew_maxsz) | |
403 | #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ | |
404 | encode_setclientid_maxsz) | |
405 | #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ | |
406 | decode_setclientid_maxsz) | |
407 | #define NFS4_enc_setclientid_confirm_sz \ | |
408 | (compound_encode_hdr_maxsz + \ | |
409 | encode_setclientid_confirm_maxsz + \ | |
410 | encode_putrootfh_maxsz + \ | |
411 | encode_fsinfo_maxsz) | |
412 | #define NFS4_dec_setclientid_confirm_sz \ | |
413 | (compound_decode_hdr_maxsz + \ | |
414 | decode_setclientid_confirm_maxsz + \ | |
415 | decode_putrootfh_maxsz + \ | |
416 | decode_fsinfo_maxsz) | |
417 | #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 418 | encode_sequence_maxsz + \ |
1da177e4 | 419 | encode_putfh_maxsz + \ |
9104a55d | 420 | encode_lock_maxsz) |
1da177e4 | 421 | #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 422 | decode_sequence_maxsz + \ |
1da177e4 | 423 | decode_putfh_maxsz + \ |
9104a55d | 424 | decode_lock_maxsz) |
1da177e4 | 425 | #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 426 | encode_sequence_maxsz + \ |
1da177e4 | 427 | encode_putfh_maxsz + \ |
9104a55d TM |
428 | encode_lockt_maxsz) |
429 | #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 430 | decode_sequence_maxsz + \ |
9104a55d TM |
431 | decode_putfh_maxsz + \ |
432 | decode_lockt_maxsz) | |
1da177e4 | 433 | #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 434 | encode_sequence_maxsz + \ |
1da177e4 | 435 | encode_putfh_maxsz + \ |
9104a55d | 436 | encode_locku_maxsz) |
1da177e4 | 437 | #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 438 | decode_sequence_maxsz + \ |
1da177e4 | 439 | decode_putfh_maxsz + \ |
9104a55d | 440 | decode_locku_maxsz) |
1da177e4 | 441 | #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 442 | encode_sequence_maxsz + \ |
1da177e4 | 443 | encode_putfh_maxsz + \ |
76b32999 TM |
444 | encode_access_maxsz + \ |
445 | encode_getattr_maxsz) | |
1da177e4 | 446 | #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 447 | decode_sequence_maxsz + \ |
1da177e4 | 448 | decode_putfh_maxsz + \ |
76b32999 TM |
449 | decode_access_maxsz + \ |
450 | decode_getattr_maxsz) | |
1da177e4 | 451 | #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 452 | encode_sequence_maxsz + \ |
1da177e4 LT |
453 | encode_putfh_maxsz + \ |
454 | encode_getattr_maxsz) | |
455 | #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 456 | decode_sequence_maxsz + \ |
1da177e4 LT |
457 | decode_putfh_maxsz + \ |
458 | decode_getattr_maxsz) | |
459 | #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 460 | encode_sequence_maxsz + \ |
1da177e4 LT |
461 | encode_putfh_maxsz + \ |
462 | encode_lookup_maxsz + \ | |
463 | encode_getattr_maxsz + \ | |
464 | encode_getfh_maxsz) | |
465 | #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 466 | decode_sequence_maxsz + \ |
1da177e4 | 467 | decode_putfh_maxsz + \ |
e6889620 | 468 | decode_lookup_maxsz + \ |
1da177e4 LT |
469 | decode_getattr_maxsz + \ |
470 | decode_getfh_maxsz) | |
471 | #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 472 | encode_sequence_maxsz + \ |
1da177e4 LT |
473 | encode_putrootfh_maxsz + \ |
474 | encode_getattr_maxsz + \ | |
475 | encode_getfh_maxsz) | |
476 | #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 477 | decode_sequence_maxsz + \ |
1da177e4 LT |
478 | decode_putrootfh_maxsz + \ |
479 | decode_getattr_maxsz + \ | |
480 | decode_getfh_maxsz) | |
481 | #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 482 | encode_sequence_maxsz + \ |
1da177e4 | 483 | encode_putfh_maxsz + \ |
16e42959 TM |
484 | encode_remove_maxsz + \ |
485 | encode_getattr_maxsz) | |
1da177e4 | 486 | #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 487 | decode_sequence_maxsz + \ |
1da177e4 | 488 | decode_putfh_maxsz + \ |
6ce18391 | 489 | decode_remove_maxsz + \ |
16e42959 | 490 | decode_getattr_maxsz) |
1da177e4 | 491 | #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 492 | encode_sequence_maxsz + \ |
1da177e4 LT |
493 | encode_putfh_maxsz + \ |
494 | encode_savefh_maxsz + \ | |
495 | encode_putfh_maxsz + \ | |
6caf2c82 TM |
496 | encode_rename_maxsz + \ |
497 | encode_getattr_maxsz + \ | |
498 | encode_restorefh_maxsz + \ | |
499 | encode_getattr_maxsz) | |
1da177e4 | 500 | #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 501 | decode_sequence_maxsz + \ |
1da177e4 LT |
502 | decode_putfh_maxsz + \ |
503 | decode_savefh_maxsz + \ | |
504 | decode_putfh_maxsz + \ | |
6caf2c82 TM |
505 | decode_rename_maxsz + \ |
506 | decode_getattr_maxsz + \ | |
507 | decode_restorefh_maxsz + \ | |
508 | decode_getattr_maxsz) | |
1da177e4 | 509 | #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 510 | encode_sequence_maxsz + \ |
1da177e4 LT |
511 | encode_putfh_maxsz + \ |
512 | encode_savefh_maxsz + \ | |
513 | encode_putfh_maxsz + \ | |
91ba2eee TM |
514 | encode_link_maxsz + \ |
515 | decode_getattr_maxsz + \ | |
516 | encode_restorefh_maxsz + \ | |
517 | decode_getattr_maxsz) | |
1da177e4 | 518 | #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 519 | decode_sequence_maxsz + \ |
1da177e4 LT |
520 | decode_putfh_maxsz + \ |
521 | decode_savefh_maxsz + \ | |
522 | decode_putfh_maxsz + \ | |
91ba2eee TM |
523 | decode_link_maxsz + \ |
524 | decode_getattr_maxsz + \ | |
525 | decode_restorefh_maxsz + \ | |
526 | decode_getattr_maxsz) | |
1da177e4 | 527 | #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 528 | encode_sequence_maxsz + \ |
1da177e4 LT |
529 | encode_putfh_maxsz + \ |
530 | encode_symlink_maxsz + \ | |
531 | encode_getattr_maxsz + \ | |
532 | encode_getfh_maxsz) | |
533 | #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 534 | decode_sequence_maxsz + \ |
1da177e4 LT |
535 | decode_putfh_maxsz + \ |
536 | decode_symlink_maxsz + \ | |
537 | decode_getattr_maxsz + \ | |
538 | decode_getfh_maxsz) | |
539 | #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 540 | encode_sequence_maxsz + \ |
1da177e4 | 541 | encode_putfh_maxsz + \ |
56ae19f3 | 542 | encode_savefh_maxsz + \ |
1da177e4 | 543 | encode_create_maxsz + \ |
56ae19f3 | 544 | encode_getfh_maxsz + \ |
1da177e4 | 545 | encode_getattr_maxsz + \ |
56ae19f3 TM |
546 | encode_restorefh_maxsz + \ |
547 | encode_getattr_maxsz) | |
1da177e4 | 548 | #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 549 | decode_sequence_maxsz + \ |
1da177e4 | 550 | decode_putfh_maxsz + \ |
56ae19f3 | 551 | decode_savefh_maxsz + \ |
1da177e4 | 552 | decode_create_maxsz + \ |
56ae19f3 | 553 | decode_getfh_maxsz + \ |
1da177e4 | 554 | decode_getattr_maxsz + \ |
56ae19f3 TM |
555 | decode_restorefh_maxsz + \ |
556 | decode_getattr_maxsz) | |
1da177e4 | 557 | #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 558 | encode_sequence_maxsz + \ |
1da177e4 LT |
559 | encode_putfh_maxsz + \ |
560 | encode_getattr_maxsz) | |
561 | #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 562 | decode_sequence_maxsz + \ |
1da177e4 LT |
563 | decode_putfh_maxsz + \ |
564 | decode_getattr_maxsz) | |
565 | #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 566 | encode_sequence_maxsz + \ |
1da177e4 | 567 | encode_putfh_maxsz + \ |
9104a55d | 568 | encode_statfs_maxsz) |
1da177e4 | 569 | #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 570 | decode_sequence_maxsz + \ |
1da177e4 | 571 | decode_putfh_maxsz + \ |
9104a55d | 572 | decode_statfs_maxsz) |
1da177e4 | 573 | #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 574 | encode_sequence_maxsz + \ |
ab91f264 | 575 | encode_putfh_maxsz + \ |
1da177e4 LT |
576 | encode_getattr_maxsz) |
577 | #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 578 | decode_sequence_maxsz + \ |
ab91f264 | 579 | decode_putfh_maxsz + \ |
1da177e4 LT |
580 | decode_getattr_maxsz) |
581 | #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 582 | encode_sequence_maxsz + \ |
1da177e4 | 583 | encode_putfh_maxsz + \ |
fa178f29 TM |
584 | encode_delegreturn_maxsz + \ |
585 | encode_getattr_maxsz) | |
1da177e4 | 586 | #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 587 | decode_sequence_maxsz + \ |
fa178f29 TM |
588 | decode_delegreturn_maxsz + \ |
589 | decode_getattr_maxsz) | |
029d105e | 590 | #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 591 | encode_sequence_maxsz + \ |
029d105e | 592 | encode_putfh_maxsz + \ |
9104a55d | 593 | encode_getacl_maxsz) |
029d105e | 594 | #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 595 | decode_sequence_maxsz + \ |
029d105e | 596 | decode_putfh_maxsz + \ |
9104a55d | 597 | decode_getacl_maxsz) |
23ec6965 | 598 | #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 599 | encode_sequence_maxsz + \ |
23ec6965 | 600 | encode_putfh_maxsz + \ |
9104a55d | 601 | encode_setacl_maxsz) |
23ec6965 | 602 | #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 603 | decode_sequence_maxsz + \ |
23ec6965 | 604 | decode_putfh_maxsz + \ |
9104a55d | 605 | decode_setacl_maxsz) |
683b57b4 TM |
606 | #define NFS4_enc_fs_locations_sz \ |
607 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 608 | encode_sequence_maxsz + \ |
683b57b4 | 609 | encode_putfh_maxsz + \ |
e6889620 TM |
610 | encode_lookup_maxsz + \ |
611 | encode_fs_locations_maxsz) | |
683b57b4 TM |
612 | #define NFS4_dec_fs_locations_sz \ |
613 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 614 | decode_sequence_maxsz + \ |
683b57b4 | 615 | decode_putfh_maxsz + \ |
e6889620 TM |
616 | decode_lookup_maxsz + \ |
617 | decode_fs_locations_maxsz) | |
99fe60d0 BH |
618 | #if defined(CONFIG_NFS_V4_1) |
619 | #define NFS4_enc_exchange_id_sz \ | |
620 | (compound_encode_hdr_maxsz + \ | |
621 | encode_exchange_id_maxsz) | |
622 | #define NFS4_dec_exchange_id_sz \ | |
623 | (compound_decode_hdr_maxsz + \ | |
624 | decode_exchange_id_maxsz) | |
2050f0cc AA |
625 | #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ |
626 | encode_sequence_maxsz + \ | |
627 | encode_putrootfh_maxsz + \ | |
628 | encode_fsinfo_maxsz) | |
629 | #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ | |
630 | decode_sequence_maxsz + \ | |
631 | decode_putrootfh_maxsz + \ | |
632 | decode_fsinfo_maxsz) | |
99fe60d0 | 633 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 | 634 | |
bca79478 TM |
635 | static const umode_t nfs_type2fmt[] = { |
636 | [NF4BAD] = 0, | |
637 | [NF4REG] = S_IFREG, | |
638 | [NF4DIR] = S_IFDIR, | |
639 | [NF4BLK] = S_IFBLK, | |
640 | [NF4CHR] = S_IFCHR, | |
641 | [NF4LNK] = S_IFLNK, | |
642 | [NF4SOCK] = S_IFSOCK, | |
643 | [NF4FIFO] = S_IFIFO, | |
644 | [NF4ATTRDIR] = 0, | |
645 | [NF4NAMEDATTR] = 0, | |
1da177e4 LT |
646 | }; |
647 | ||
648 | struct compound_hdr { | |
649 | int32_t status; | |
650 | uint32_t nops; | |
d017931c | 651 | __be32 * nops_p; |
1da177e4 LT |
652 | uint32_t taglen; |
653 | char * tag; | |
0c4e8c18 | 654 | uint32_t replen; /* expected reply words */ |
66cc0429 | 655 | u32 minorversion; |
1da177e4 LT |
656 | }; |
657 | ||
658 | /* | |
659 | * START OF "GENERIC" ENCODE ROUTINES. | |
660 | * These may look a little ugly since they are imported from a "generic" | |
661 | * set of XDR encode/decode routines which are intended to be shared by | |
662 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
663 | * | |
664 | * If the pain of reading these is too great, it should be a straightforward | |
665 | * task to translate them into Linux-specific versions which are more | |
666 | * consistent with the style used in NFSv2/v3... | |
667 | */ | |
668 | #define WRITE32(n) *p++ = htonl(n) | |
669 | #define WRITE64(n) do { \ | |
670 | *p++ = htonl((uint32_t)((n) >> 32)); \ | |
671 | *p++ = htonl((uint32_t)(n)); \ | |
672 | } while (0) | |
673 | #define WRITEMEM(ptr,nbytes) do { \ | |
674 | p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ | |
675 | } while (0) | |
676 | ||
677 | #define RESERVE_SPACE(nbytes) do { \ | |
678 | p = xdr_reserve_space(xdr, nbytes); \ | |
1da177e4 LT |
679 | BUG_ON(!p); \ |
680 | } while (0) | |
681 | ||
682 | static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) | |
683 | { | |
8687b63a | 684 | __be32 *p; |
1da177e4 LT |
685 | |
686 | p = xdr_reserve_space(xdr, 4 + len); | |
687 | BUG_ON(p == NULL); | |
688 | xdr_encode_opaque(p, str, len); | |
689 | } | |
690 | ||
0c4e8c18 BH |
691 | static void encode_compound_hdr(struct xdr_stream *xdr, |
692 | struct rpc_rqst *req, | |
693 | struct compound_hdr *hdr) | |
1da177e4 | 694 | { |
8687b63a | 695 | __be32 *p; |
0c4e8c18 BH |
696 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
697 | ||
698 | /* initialize running count of expected bytes in reply. | |
699 | * NOTE: the replied tag SHOULD be the same is the one sent, | |
700 | * but this is not required as a MUST for the server to do so. */ | |
701 | hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; | |
1da177e4 LT |
702 | |
703 | dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); | |
704 | BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); | |
705 | RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); | |
706 | WRITE32(hdr->taglen); | |
707 | WRITEMEM(hdr->tag, hdr->taglen); | |
66cc0429 | 708 | WRITE32(hdr->minorversion); |
d017931c | 709 | hdr->nops_p = p; |
1da177e4 | 710 | WRITE32(hdr->nops); |
d017931c AA |
711 | } |
712 | ||
713 | static void encode_nops(struct compound_hdr *hdr) | |
714 | { | |
715 | *hdr->nops_p = htonl(hdr->nops); | |
1da177e4 LT |
716 | } |
717 | ||
718 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) | |
719 | { | |
8687b63a | 720 | __be32 *p; |
1da177e4 LT |
721 | |
722 | p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); | |
723 | BUG_ON(p == NULL); | |
724 | xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); | |
725 | } | |
726 | ||
cf8cdbe5 | 727 | static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) |
1da177e4 LT |
728 | { |
729 | char owner_name[IDMAP_NAMESZ]; | |
730 | char owner_group[IDMAP_NAMESZ]; | |
731 | int owner_namelen = 0; | |
732 | int owner_grouplen = 0; | |
8687b63a AV |
733 | __be32 *p; |
734 | __be32 *q; | |
1da177e4 LT |
735 | int len; |
736 | uint32_t bmval0 = 0; | |
737 | uint32_t bmval1 = 0; | |
1da177e4 LT |
738 | |
739 | /* | |
740 | * We reserve enough space to write the entire attribute buffer at once. | |
741 | * In the worst-case, this would be | |
742 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) | |
743 | * = 36 bytes, plus any contribution from variable-length fields | |
23ec6965 | 744 | * such as owner/group. |
1da177e4 LT |
745 | */ |
746 | len = 16; | |
747 | ||
748 | /* Sigh */ | |
749 | if (iap->ia_valid & ATTR_SIZE) | |
750 | len += 8; | |
751 | if (iap->ia_valid & ATTR_MODE) | |
752 | len += 4; | |
753 | if (iap->ia_valid & ATTR_UID) { | |
7539bbab | 754 | owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); |
1da177e4 | 755 | if (owner_namelen < 0) { |
fe82a183 CL |
756 | dprintk("nfs: couldn't resolve uid %d to string\n", |
757 | iap->ia_uid); | |
1da177e4 LT |
758 | /* XXX */ |
759 | strcpy(owner_name, "nobody"); | |
760 | owner_namelen = sizeof("nobody") - 1; | |
761 | /* goto out; */ | |
762 | } | |
763 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); | |
764 | } | |
765 | if (iap->ia_valid & ATTR_GID) { | |
7539bbab | 766 | owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); |
1da177e4 | 767 | if (owner_grouplen < 0) { |
fe82a183 CL |
768 | dprintk("nfs: couldn't resolve gid %d to string\n", |
769 | iap->ia_gid); | |
1da177e4 LT |
770 | strcpy(owner_group, "nobody"); |
771 | owner_grouplen = sizeof("nobody") - 1; | |
772 | /* goto out; */ | |
773 | } | |
774 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); | |
775 | } | |
776 | if (iap->ia_valid & ATTR_ATIME_SET) | |
777 | len += 16; | |
778 | else if (iap->ia_valid & ATTR_ATIME) | |
779 | len += 4; | |
780 | if (iap->ia_valid & ATTR_MTIME_SET) | |
781 | len += 16; | |
782 | else if (iap->ia_valid & ATTR_MTIME) | |
783 | len += 4; | |
784 | RESERVE_SPACE(len); | |
785 | ||
786 | /* | |
787 | * We write the bitmap length now, but leave the bitmap and the attribute | |
788 | * buffer length to be backfilled at the end of this routine. | |
789 | */ | |
790 | WRITE32(2); | |
791 | q = p; | |
792 | p += 3; | |
793 | ||
794 | if (iap->ia_valid & ATTR_SIZE) { | |
795 | bmval0 |= FATTR4_WORD0_SIZE; | |
796 | WRITE64(iap->ia_size); | |
797 | } | |
798 | if (iap->ia_valid & ATTR_MODE) { | |
799 | bmval1 |= FATTR4_WORD1_MODE; | |
cf3fff54 | 800 | WRITE32(iap->ia_mode & S_IALLUGO); |
1da177e4 LT |
801 | } |
802 | if (iap->ia_valid & ATTR_UID) { | |
803 | bmval1 |= FATTR4_WORD1_OWNER; | |
804 | WRITE32(owner_namelen); | |
805 | WRITEMEM(owner_name, owner_namelen); | |
806 | } | |
807 | if (iap->ia_valid & ATTR_GID) { | |
808 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; | |
809 | WRITE32(owner_grouplen); | |
810 | WRITEMEM(owner_group, owner_grouplen); | |
811 | } | |
812 | if (iap->ia_valid & ATTR_ATIME_SET) { | |
813 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
814 | WRITE32(NFS4_SET_TO_CLIENT_TIME); | |
815 | WRITE32(0); | |
816 | WRITE32(iap->ia_mtime.tv_sec); | |
817 | WRITE32(iap->ia_mtime.tv_nsec); | |
818 | } | |
819 | else if (iap->ia_valid & ATTR_ATIME) { | |
820 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
821 | WRITE32(NFS4_SET_TO_SERVER_TIME); | |
822 | } | |
823 | if (iap->ia_valid & ATTR_MTIME_SET) { | |
824 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
825 | WRITE32(NFS4_SET_TO_CLIENT_TIME); | |
826 | WRITE32(0); | |
827 | WRITE32(iap->ia_mtime.tv_sec); | |
828 | WRITE32(iap->ia_mtime.tv_nsec); | |
829 | } | |
830 | else if (iap->ia_valid & ATTR_MTIME) { | |
831 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
832 | WRITE32(NFS4_SET_TO_SERVER_TIME); | |
833 | } | |
6c0195a4 | 834 | |
1da177e4 LT |
835 | /* |
836 | * Now we backfill the bitmap and the attribute buffer length. | |
837 | */ | |
838 | if (len != ((char *)p - (char *)q) + 4) { | |
fe82a183 | 839 | printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", |
1da177e4 LT |
840 | len, ((char *)p - (char *)q) + 4); |
841 | BUG(); | |
842 | } | |
843 | len = (char *)p - (char *)q - 12; | |
844 | *q++ = htonl(bmval0); | |
845 | *q++ = htonl(bmval1); | |
846 | *q++ = htonl(len); | |
847 | ||
1da177e4 | 848 | /* out: */ |
1da177e4 LT |
849 | } |
850 | ||
cf8cdbe5 | 851 | static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) |
1da177e4 | 852 | { |
8687b63a | 853 | __be32 *p; |
1da177e4 LT |
854 | |
855 | RESERVE_SPACE(8); | |
856 | WRITE32(OP_ACCESS); | |
857 | WRITE32(access); | |
d017931c | 858 | hdr->nops++; |
dadf0c27 | 859 | hdr->replen += decode_access_maxsz; |
1da177e4 LT |
860 | } |
861 | ||
cf8cdbe5 | 862 | static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 863 | { |
8687b63a | 864 | __be32 *p; |
1da177e4 | 865 | |
8ae20abd | 866 | RESERVE_SPACE(8+NFS4_STATEID_SIZE); |
1da177e4 | 867 | WRITE32(OP_CLOSE); |
cee54fc9 | 868 | WRITE32(arg->seqid->sequence->counter); |
8ae20abd | 869 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
d017931c | 870 | hdr->nops++; |
dadf0c27 | 871 | hdr->replen += decode_close_maxsz; |
1da177e4 LT |
872 | } |
873 | ||
cf8cdbe5 | 874 | static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 875 | { |
8687b63a | 876 | __be32 *p; |
6c0195a4 | 877 | |
05d564fe AA |
878 | RESERVE_SPACE(16); |
879 | WRITE32(OP_COMMIT); | |
880 | WRITE64(args->offset); | |
881 | WRITE32(args->count); | |
d017931c | 882 | hdr->nops++; |
dadf0c27 | 883 | hdr->replen += decode_commit_maxsz; |
1da177e4 LT |
884 | } |
885 | ||
cf8cdbe5 | 886 | static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) |
1da177e4 | 887 | { |
8687b63a | 888 | __be32 *p; |
6c0195a4 | 889 | |
1da177e4 LT |
890 | RESERVE_SPACE(8); |
891 | WRITE32(OP_CREATE); | |
892 | WRITE32(create->ftype); | |
893 | ||
894 | switch (create->ftype) { | |
895 | case NF4LNK: | |
94a6d753 CL |
896 | RESERVE_SPACE(4); |
897 | WRITE32(create->u.symlink.len); | |
898 | xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); | |
1da177e4 LT |
899 | break; |
900 | ||
901 | case NF4BLK: case NF4CHR: | |
902 | RESERVE_SPACE(8); | |
903 | WRITE32(create->u.device.specdata1); | |
904 | WRITE32(create->u.device.specdata2); | |
905 | break; | |
906 | ||
907 | default: | |
908 | break; | |
909 | } | |
910 | ||
911 | RESERVE_SPACE(4 + create->name->len); | |
912 | WRITE32(create->name->len); | |
913 | WRITEMEM(create->name->name, create->name->len); | |
d017931c | 914 | hdr->nops++; |
dadf0c27 | 915 | hdr->replen += decode_create_maxsz; |
1da177e4 | 916 | |
cf8cdbe5 | 917 | encode_attrs(xdr, create->attrs, create->server); |
1da177e4 LT |
918 | } |
919 | ||
cf8cdbe5 | 920 | static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) |
1da177e4 | 921 | { |
05d564fe | 922 | __be32 *p; |
1da177e4 | 923 | |
05d564fe AA |
924 | RESERVE_SPACE(12); |
925 | WRITE32(OP_GETATTR); | |
926 | WRITE32(1); | |
927 | WRITE32(bitmap); | |
d017931c | 928 | hdr->nops++; |
dadf0c27 | 929 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
930 | } |
931 | ||
cf8cdbe5 | 932 | static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) |
1da177e4 | 933 | { |
05d564fe | 934 | __be32 *p; |
1da177e4 | 935 | |
05d564fe AA |
936 | RESERVE_SPACE(16); |
937 | WRITE32(OP_GETATTR); | |
938 | WRITE32(2); | |
939 | WRITE32(bm0); | |
940 | WRITE32(bm1); | |
d017931c | 941 | hdr->nops++; |
dadf0c27 | 942 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
943 | } |
944 | ||
cf8cdbe5 | 945 | static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 946 | { |
cf8cdbe5 AA |
947 | encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], |
948 | bitmask[1] & nfs4_fattr_bitmap[1], hdr); | |
1da177e4 LT |
949 | } |
950 | ||
cf8cdbe5 | 951 | static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 952 | { |
cf8cdbe5 AA |
953 | encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
954 | bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); | |
1da177e4 LT |
955 | } |
956 | ||
cf8cdbe5 | 957 | static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
830b8e33 | 958 | { |
cf8cdbe5 AA |
959 | encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], |
960 | bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); | |
830b8e33 MN |
961 | } |
962 | ||
cf8cdbe5 | 963 | static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 964 | { |
8687b63a | 965 | __be32 *p; |
1da177e4 LT |
966 | |
967 | RESERVE_SPACE(4); | |
968 | WRITE32(OP_GETFH); | |
d017931c | 969 | hdr->nops++; |
dadf0c27 | 970 | hdr->replen += decode_getfh_maxsz; |
1da177e4 LT |
971 | } |
972 | ||
cf8cdbe5 | 973 | static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 974 | { |
8687b63a | 975 | __be32 *p; |
1da177e4 LT |
976 | |
977 | RESERVE_SPACE(8 + name->len); | |
978 | WRITE32(OP_LINK); | |
979 | WRITE32(name->len); | |
980 | WRITEMEM(name->name, name->len); | |
d017931c | 981 | hdr->nops++; |
dadf0c27 | 982 | hdr->replen += decode_link_maxsz; |
1da177e4 LT |
983 | } |
984 | ||
911d1aaf TM |
985 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
986 | { | |
987 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) | |
988 | return block ? NFS4_READW_LT : NFS4_READ_LT; | |
989 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; | |
990 | } | |
991 | ||
992 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) | |
993 | { | |
994 | if (fl->fl_end == OFFSET_MAX) | |
995 | return ~(uint64_t)0; | |
996 | return fl->fl_end - fl->fl_start + 1; | |
997 | } | |
998 | ||
1da177e4 LT |
999 | /* |
1000 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 | |
1001 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 | |
1002 | */ | |
cf8cdbe5 | 1003 | static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) |
1da177e4 | 1004 | { |
8687b63a | 1005 | __be32 *p; |
1da177e4 LT |
1006 | |
1007 | RESERVE_SPACE(32); | |
1008 | WRITE32(OP_LOCK); | |
911d1aaf TM |
1009 | WRITE32(nfs4_lock_type(args->fl, args->block)); |
1010 | WRITE32(args->reclaim); | |
1011 | WRITE64(args->fl->fl_start); | |
1012 | WRITE64(nfs4_lock_length(args->fl)); | |
1013 | WRITE32(args->new_lock_owner); | |
1014 | if (args->new_lock_owner){ | |
9f958ab8 | 1015 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); |
911d1aaf | 1016 | WRITE32(args->open_seqid->sequence->counter); |
8ae20abd | 1017 | WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
1018 | WRITE32(args->lock_seqid->sequence->counter); |
1019 | WRITE64(args->lock_owner.clientid); | |
9f958ab8 TM |
1020 | WRITE32(16); |
1021 | WRITEMEM("lock id:", 8); | |
1022 | WRITE64(args->lock_owner.id); | |
1da177e4 LT |
1023 | } |
1024 | else { | |
8ae20abd TM |
1025 | RESERVE_SPACE(NFS4_STATEID_SIZE+4); |
1026 | WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); | |
911d1aaf | 1027 | WRITE32(args->lock_seqid->sequence->counter); |
1da177e4 | 1028 | } |
d017931c | 1029 | hdr->nops++; |
dadf0c27 | 1030 | hdr->replen += decode_lock_maxsz; |
1da177e4 LT |
1031 | } |
1032 | ||
cf8cdbe5 | 1033 | static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) |
1da177e4 | 1034 | { |
8687b63a | 1035 | __be32 *p; |
1da177e4 | 1036 | |
9f958ab8 | 1037 | RESERVE_SPACE(52); |
1da177e4 | 1038 | WRITE32(OP_LOCKT); |
911d1aaf TM |
1039 | WRITE32(nfs4_lock_type(args->fl, 0)); |
1040 | WRITE64(args->fl->fl_start); | |
1041 | WRITE64(nfs4_lock_length(args->fl)); | |
1042 | WRITE64(args->lock_owner.clientid); | |
9f958ab8 TM |
1043 | WRITE32(16); |
1044 | WRITEMEM("lock id:", 8); | |
1045 | WRITE64(args->lock_owner.id); | |
d017931c | 1046 | hdr->nops++; |
dadf0c27 | 1047 | hdr->replen += decode_lockt_maxsz; |
1da177e4 LT |
1048 | } |
1049 | ||
cf8cdbe5 | 1050 | static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) |
1da177e4 | 1051 | { |
8687b63a | 1052 | __be32 *p; |
1da177e4 | 1053 | |
8ae20abd | 1054 | RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); |
1da177e4 | 1055 | WRITE32(OP_LOCKU); |
911d1aaf TM |
1056 | WRITE32(nfs4_lock_type(args->fl, 0)); |
1057 | WRITE32(args->seqid->sequence->counter); | |
8ae20abd | 1058 | WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
1059 | WRITE64(args->fl->fl_start); |
1060 | WRITE64(nfs4_lock_length(args->fl)); | |
d017931c | 1061 | hdr->nops++; |
dadf0c27 | 1062 | hdr->replen += decode_locku_maxsz; |
1da177e4 LT |
1063 | } |
1064 | ||
cf8cdbe5 | 1065 | static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 LT |
1066 | { |
1067 | int len = name->len; | |
8687b63a | 1068 | __be32 *p; |
1da177e4 LT |
1069 | |
1070 | RESERVE_SPACE(8 + len); | |
1071 | WRITE32(OP_LOOKUP); | |
1072 | WRITE32(len); | |
1073 | WRITEMEM(name->name, len); | |
d017931c | 1074 | hdr->nops++; |
dadf0c27 | 1075 | hdr->replen += decode_lookup_maxsz; |
1da177e4 LT |
1076 | } |
1077 | ||
dc0b027d | 1078 | static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) |
1da177e4 | 1079 | { |
8687b63a | 1080 | __be32 *p; |
1da177e4 LT |
1081 | |
1082 | RESERVE_SPACE(8); | |
dc0b027d | 1083 | switch (fmode & (FMODE_READ|FMODE_WRITE)) { |
05d564fe AA |
1084 | case FMODE_READ: |
1085 | WRITE32(NFS4_SHARE_ACCESS_READ); | |
1086 | break; | |
1087 | case FMODE_WRITE: | |
1088 | WRITE32(NFS4_SHARE_ACCESS_WRITE); | |
1089 | break; | |
1090 | case FMODE_READ|FMODE_WRITE: | |
1091 | WRITE32(NFS4_SHARE_ACCESS_BOTH); | |
1092 | break; | |
1093 | default: | |
1094 | WRITE32(0); | |
1da177e4 LT |
1095 | } |
1096 | WRITE32(0); /* for linux, share_deny = 0 always */ | |
1097 | } | |
1098 | ||
1099 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1100 | { | |
8687b63a | 1101 | __be32 *p; |
1da177e4 LT |
1102 | /* |
1103 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, | |
1104 | * owner 4 = 32 | |
1105 | */ | |
1106 | RESERVE_SPACE(8); | |
1107 | WRITE32(OP_OPEN); | |
cee54fc9 | 1108 | WRITE32(arg->seqid->sequence->counter); |
dc0b027d | 1109 | encode_share_access(xdr, arg->fmode); |
9f958ab8 | 1110 | RESERVE_SPACE(28); |
1da177e4 | 1111 | WRITE64(arg->clientid); |
9f958ab8 TM |
1112 | WRITE32(16); |
1113 | WRITEMEM("open id:", 8); | |
1114 | WRITE64(arg->id); | |
1da177e4 LT |
1115 | } |
1116 | ||
1117 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1118 | { | |
8687b63a | 1119 | __be32 *p; |
1da177e4 LT |
1120 | |
1121 | RESERVE_SPACE(4); | |
1122 | switch(arg->open_flags & O_EXCL) { | |
05d564fe AA |
1123 | case 0: |
1124 | WRITE32(NFS4_CREATE_UNCHECKED); | |
1125 | encode_attrs(xdr, arg->u.attrs, arg->server); | |
1126 | break; | |
1127 | default: | |
1128 | WRITE32(NFS4_CREATE_EXCLUSIVE); | |
1129 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1da177e4 LT |
1130 | } |
1131 | } | |
1132 | ||
1133 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1134 | { | |
8687b63a | 1135 | __be32 *p; |
1da177e4 LT |
1136 | |
1137 | RESERVE_SPACE(4); | |
1138 | switch (arg->open_flags & O_CREAT) { | |
05d564fe AA |
1139 | case 0: |
1140 | WRITE32(NFS4_OPEN_NOCREATE); | |
1141 | break; | |
1142 | default: | |
1143 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); | |
1144 | WRITE32(NFS4_OPEN_CREATE); | |
1145 | encode_createmode(xdr, arg); | |
1da177e4 LT |
1146 | } |
1147 | } | |
1148 | ||
bd7bf9d5 | 1149 | static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) |
1da177e4 | 1150 | { |
8687b63a | 1151 | __be32 *p; |
1da177e4 LT |
1152 | |
1153 | RESERVE_SPACE(4); | |
1154 | switch (delegation_type) { | |
05d564fe AA |
1155 | case 0: |
1156 | WRITE32(NFS4_OPEN_DELEGATE_NONE); | |
1157 | break; | |
1158 | case FMODE_READ: | |
1159 | WRITE32(NFS4_OPEN_DELEGATE_READ); | |
1160 | break; | |
1161 | case FMODE_WRITE|FMODE_READ: | |
1162 | WRITE32(NFS4_OPEN_DELEGATE_WRITE); | |
1163 | break; | |
1164 | default: | |
1165 | BUG(); | |
1da177e4 LT |
1166 | } |
1167 | } | |
1168 | ||
1169 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) | |
1170 | { | |
8687b63a | 1171 | __be32 *p; |
1da177e4 LT |
1172 | |
1173 | RESERVE_SPACE(4); | |
1174 | WRITE32(NFS4_OPEN_CLAIM_NULL); | |
1175 | encode_string(xdr, name->len, name->name); | |
1176 | } | |
1177 | ||
bd7bf9d5 | 1178 | static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) |
1da177e4 | 1179 | { |
8687b63a | 1180 | __be32 *p; |
1da177e4 LT |
1181 | |
1182 | RESERVE_SPACE(4); | |
1183 | WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); | |
1184 | encode_delegation_type(xdr, type); | |
1185 | } | |
1186 | ||
1187 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) | |
1188 | { | |
8687b63a | 1189 | __be32 *p; |
1da177e4 | 1190 | |
8ae20abd | 1191 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 | 1192 | WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
8ae20abd | 1193 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1194 | encode_string(xdr, name->len, name->name); |
1195 | } | |
1196 | ||
cf8cdbe5 | 1197 | static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) |
1da177e4 LT |
1198 | { |
1199 | encode_openhdr(xdr, arg); | |
1200 | encode_opentype(xdr, arg); | |
1201 | switch (arg->claim) { | |
05d564fe AA |
1202 | case NFS4_OPEN_CLAIM_NULL: |
1203 | encode_claim_null(xdr, arg->name); | |
1204 | break; | |
1205 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
1206 | encode_claim_previous(xdr, arg->u.delegation_type); | |
1207 | break; | |
1208 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: | |
1209 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); | |
1210 | break; | |
1211 | default: | |
1212 | BUG(); | |
1da177e4 | 1213 | } |
d017931c | 1214 | hdr->nops++; |
dadf0c27 | 1215 | hdr->replen += decode_open_maxsz; |
1da177e4 LT |
1216 | } |
1217 | ||
cf8cdbe5 | 1218 | static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1219 | { |
8687b63a | 1220 | __be32 *p; |
1da177e4 | 1221 | |
8ae20abd | 1222 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1223 | WRITE32(OP_OPEN_CONFIRM); |
8ae20abd | 1224 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1225 | WRITE32(arg->seqid->sequence->counter); |
d017931c | 1226 | hdr->nops++; |
dadf0c27 | 1227 | hdr->replen += decode_open_confirm_maxsz; |
1da177e4 LT |
1228 | } |
1229 | ||
cf8cdbe5 | 1230 | static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1231 | { |
8687b63a | 1232 | __be32 *p; |
1da177e4 | 1233 | |
8ae20abd | 1234 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1235 | WRITE32(OP_OPEN_DOWNGRADE); |
8ae20abd | 1236 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1237 | WRITE32(arg->seqid->sequence->counter); |
dc0b027d | 1238 | encode_share_access(xdr, arg->fmode); |
d017931c | 1239 | hdr->nops++; |
dadf0c27 | 1240 | hdr->replen += decode_open_downgrade_maxsz; |
1da177e4 LT |
1241 | } |
1242 | ||
cf8cdbe5 | 1243 | static void |
d017931c | 1244 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) |
1da177e4 LT |
1245 | { |
1246 | int len = fh->size; | |
8687b63a | 1247 | __be32 *p; |
1da177e4 LT |
1248 | |
1249 | RESERVE_SPACE(8 + len); | |
1250 | WRITE32(OP_PUTFH); | |
1251 | WRITE32(len); | |
1252 | WRITEMEM(fh->data, len); | |
d017931c | 1253 | hdr->nops++; |
dadf0c27 | 1254 | hdr->replen += decode_putfh_maxsz; |
1da177e4 LT |
1255 | } |
1256 | ||
cf8cdbe5 | 1257 | static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1258 | { |
05d564fe | 1259 | __be32 *p; |
6c0195a4 | 1260 | |
05d564fe AA |
1261 | RESERVE_SPACE(4); |
1262 | WRITE32(OP_PUTROOTFH); | |
d017931c | 1263 | hdr->nops++; |
dadf0c27 | 1264 | hdr->replen += decode_putrootfh_maxsz; |
1da177e4 LT |
1265 | } |
1266 | ||
1267 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) | |
1268 | { | |
1da177e4 | 1269 | nfs4_stateid stateid; |
8687b63a | 1270 | __be32 *p; |
1da177e4 | 1271 | |
8ae20abd | 1272 | RESERVE_SPACE(NFS4_STATEID_SIZE); |
1da177e4 LT |
1273 | if (ctx->state != NULL) { |
1274 | nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); | |
8ae20abd | 1275 | WRITEMEM(stateid.data, NFS4_STATEID_SIZE); |
1da177e4 | 1276 | } else |
8ae20abd | 1277 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1278 | } |
1279 | ||
cf8cdbe5 | 1280 | static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) |
1da177e4 | 1281 | { |
8687b63a | 1282 | __be32 *p; |
1da177e4 LT |
1283 | |
1284 | RESERVE_SPACE(4); | |
1285 | WRITE32(OP_READ); | |
1286 | ||
1287 | encode_stateid(xdr, args->context); | |
1288 | ||
1289 | RESERVE_SPACE(12); | |
1290 | WRITE64(args->offset); | |
1291 | WRITE32(args->count); | |
d017931c | 1292 | hdr->nops++; |
dadf0c27 | 1293 | hdr->replen += decode_read_maxsz; |
1da177e4 LT |
1294 | } |
1295 | ||
cf8cdbe5 | 1296 | static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1297 | { |
97d312d0 MN |
1298 | uint32_t attrs[2] = { |
1299 | FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, | |
1300 | FATTR4_WORD1_MOUNTED_ON_FILEID, | |
1301 | }; | |
8687b63a | 1302 | __be32 *p; |
1da177e4 | 1303 | |
8ae20abd | 1304 | RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); |
1da177e4 LT |
1305 | WRITE32(OP_READDIR); |
1306 | WRITE64(readdir->cookie); | |
8ae20abd | 1307 | WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1308 | WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ |
1309 | WRITE32(readdir->count); | |
1310 | WRITE32(2); | |
97d312d0 MN |
1311 | /* Switch to mounted_on_fileid if the server supports it */ |
1312 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) | |
1313 | attrs[0] &= ~FATTR4_WORD0_FILEID; | |
1314 | else | |
1315 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
1316 | WRITE32(attrs[0] & readdir->bitmask[0]); | |
1317 | WRITE32(attrs[1] & readdir->bitmask[1]); | |
d017931c | 1318 | hdr->nops++; |
dadf0c27 | 1319 | hdr->replen += decode_readdir_maxsz; |
44109241 FI |
1320 | dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", |
1321 | __func__, | |
eadf4598 TM |
1322 | (unsigned long long)readdir->cookie, |
1323 | ((u32 *)readdir->verifier.data)[0], | |
1324 | ((u32 *)readdir->verifier.data)[1], | |
1325 | attrs[0] & readdir->bitmask[0], | |
1326 | attrs[1] & readdir->bitmask[1]); | |
1da177e4 LT |
1327 | } |
1328 | ||
cf8cdbe5 | 1329 | static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1330 | { |
8687b63a | 1331 | __be32 *p; |
1da177e4 LT |
1332 | |
1333 | RESERVE_SPACE(4); | |
1334 | WRITE32(OP_READLINK); | |
d017931c | 1335 | hdr->nops++; |
dadf0c27 | 1336 | hdr->replen += decode_readlink_maxsz; |
1da177e4 LT |
1337 | } |
1338 | ||
cf8cdbe5 | 1339 | static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1340 | { |
8687b63a | 1341 | __be32 *p; |
1da177e4 LT |
1342 | |
1343 | RESERVE_SPACE(8 + name->len); | |
1344 | WRITE32(OP_REMOVE); | |
1345 | WRITE32(name->len); | |
1346 | WRITEMEM(name->name, name->len); | |
d017931c | 1347 | hdr->nops++; |
dadf0c27 | 1348 | hdr->replen += decode_remove_maxsz; |
1da177e4 LT |
1349 | } |
1350 | ||
cf8cdbe5 | 1351 | static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) |
1da177e4 | 1352 | { |
8687b63a | 1353 | __be32 *p; |
1da177e4 LT |
1354 | |
1355 | RESERVE_SPACE(8 + oldname->len); | |
1356 | WRITE32(OP_RENAME); | |
1357 | WRITE32(oldname->len); | |
1358 | WRITEMEM(oldname->name, oldname->len); | |
6c0195a4 | 1359 | |
1da177e4 LT |
1360 | RESERVE_SPACE(4 + newname->len); |
1361 | WRITE32(newname->len); | |
1362 | WRITEMEM(newname->name, newname->len); | |
d017931c | 1363 | hdr->nops++; |
dadf0c27 | 1364 | hdr->replen += decode_rename_maxsz; |
1da177e4 LT |
1365 | } |
1366 | ||
cf8cdbe5 | 1367 | static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) |
1da177e4 | 1368 | { |
8687b63a | 1369 | __be32 *p; |
1da177e4 LT |
1370 | |
1371 | RESERVE_SPACE(12); | |
1372 | WRITE32(OP_RENEW); | |
1373 | WRITE64(client_stateid->cl_clientid); | |
d017931c | 1374 | hdr->nops++; |
dadf0c27 | 1375 | hdr->replen += decode_renew_maxsz; |
1da177e4 LT |
1376 | } |
1377 | ||
cf8cdbe5 | 1378 | static void |
d017931c | 1379 | encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
56ae19f3 | 1380 | { |
8687b63a | 1381 | __be32 *p; |
56ae19f3 TM |
1382 | |
1383 | RESERVE_SPACE(4); | |
1384 | WRITE32(OP_RESTOREFH); | |
d017931c | 1385 | hdr->nops++; |
dadf0c27 | 1386 | hdr->replen += decode_restorefh_maxsz; |
56ae19f3 TM |
1387 | } |
1388 | ||
23ec6965 | 1389 | static int |
d017931c | 1390 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) |
23ec6965 | 1391 | { |
8687b63a | 1392 | __be32 *p; |
23ec6965 | 1393 | |
8ae20abd | 1394 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
23ec6965 | 1395 | WRITE32(OP_SETATTR); |
8ae20abd | 1396 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
23ec6965 BF |
1397 | RESERVE_SPACE(2*4); |
1398 | WRITE32(1); | |
1399 | WRITE32(FATTR4_WORD0_ACL); | |
1400 | if (arg->acl_len % 4) | |
1401 | return -EINVAL; | |
1402 | RESERVE_SPACE(4); | |
1403 | WRITE32(arg->acl_len); | |
1404 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); | |
d017931c | 1405 | hdr->nops++; |
dadf0c27 | 1406 | hdr->replen += decode_setacl_maxsz; |
23ec6965 BF |
1407 | return 0; |
1408 | } | |
1409 | ||
cf8cdbe5 | 1410 | static void |
d017931c | 1411 | encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1412 | { |
8687b63a | 1413 | __be32 *p; |
1da177e4 LT |
1414 | |
1415 | RESERVE_SPACE(4); | |
1416 | WRITE32(OP_SAVEFH); | |
d017931c | 1417 | hdr->nops++; |
dadf0c27 | 1418 | hdr->replen += decode_savefh_maxsz; |
1da177e4 LT |
1419 | } |
1420 | ||
cf8cdbe5 | 1421 | static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) |
1da177e4 | 1422 | { |
8687b63a | 1423 | __be32 *p; |
6c0195a4 | 1424 | |
05d564fe AA |
1425 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1426 | WRITE32(OP_SETATTR); | |
8ae20abd | 1427 | WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); |
d017931c | 1428 | hdr->nops++; |
dadf0c27 | 1429 | hdr->replen += decode_setattr_maxsz; |
cf8cdbe5 | 1430 | encode_attrs(xdr, arg->iap, server); |
1da177e4 LT |
1431 | } |
1432 | ||
cf8cdbe5 | 1433 | static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) |
1da177e4 | 1434 | { |
8687b63a | 1435 | __be32 *p; |
1da177e4 | 1436 | |
8ae20abd | 1437 | RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); |
1da177e4 | 1438 | WRITE32(OP_SETCLIENTID); |
8ae20abd | 1439 | WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1440 | |
1441 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); | |
1442 | RESERVE_SPACE(4); | |
1443 | WRITE32(setclientid->sc_prog); | |
1444 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); | |
1445 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); | |
1446 | RESERVE_SPACE(4); | |
1447 | WRITE32(setclientid->sc_cb_ident); | |
d017931c | 1448 | hdr->nops++; |
dadf0c27 | 1449 | hdr->replen += decode_setclientid_maxsz; |
1da177e4 LT |
1450 | } |
1451 | ||
cf8cdbe5 | 1452 | static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) |
1da177e4 | 1453 | { |
05d564fe | 1454 | __be32 *p; |
1da177e4 | 1455 | |
05d564fe AA |
1456 | RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); |
1457 | WRITE32(OP_SETCLIENTID_CONFIRM); | |
1458 | WRITE64(client_state->cl_clientid); | |
1459 | WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); | |
d017931c | 1460 | hdr->nops++; |
dadf0c27 | 1461 | hdr->replen += decode_setclientid_confirm_maxsz; |
1da177e4 LT |
1462 | } |
1463 | ||
cf8cdbe5 | 1464 | static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 1465 | { |
8687b63a | 1466 | __be32 *p; |
1da177e4 LT |
1467 | |
1468 | RESERVE_SPACE(4); | |
1469 | WRITE32(OP_WRITE); | |
1470 | ||
1471 | encode_stateid(xdr, args->context); | |
1472 | ||
1473 | RESERVE_SPACE(16); | |
1474 | WRITE64(args->offset); | |
1475 | WRITE32(args->stable); | |
1476 | WRITE32(args->count); | |
1477 | ||
1478 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); | |
d017931c | 1479 | hdr->nops++; |
dadf0c27 | 1480 | hdr->replen += decode_write_maxsz; |
1da177e4 LT |
1481 | } |
1482 | ||
cf8cdbe5 | 1483 | static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) |
1da177e4 | 1484 | { |
8687b63a | 1485 | __be32 *p; |
1da177e4 | 1486 | |
8ae20abd | 1487 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 LT |
1488 | |
1489 | WRITE32(OP_DELEGRETURN); | |
8ae20abd | 1490 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
d017931c | 1491 | hdr->nops++; |
dadf0c27 | 1492 | hdr->replen += decode_delegreturn_maxsz; |
1da177e4 | 1493 | } |
9b7b9fcc | 1494 | |
99fe60d0 | 1495 | #if defined(CONFIG_NFS_V4_1) |
9b7b9fcc | 1496 | /* NFSv4.1 operations */ |
99fe60d0 BH |
1497 | static void encode_exchange_id(struct xdr_stream *xdr, |
1498 | struct nfs41_exchange_id_args *args, | |
1499 | struct compound_hdr *hdr) | |
1500 | { | |
1501 | __be32 *p; | |
1502 | ||
1503 | RESERVE_SPACE(4 + sizeof(args->verifier->data)); | |
1504 | WRITE32(OP_EXCHANGE_ID); | |
1505 | WRITEMEM(args->verifier->data, sizeof(args->verifier->data)); | |
1506 | ||
1507 | encode_string(xdr, args->id_len, args->id); | |
1508 | ||
1509 | RESERVE_SPACE(12); | |
1510 | WRITE32(args->flags); | |
1511 | WRITE32(0); /* zero length state_protect4_a */ | |
1512 | WRITE32(0); /* zero length implementation id array */ | |
1513 | hdr->nops++; | |
1514 | hdr->replen += decode_exchange_id_maxsz; | |
1515 | } | |
1516 | #endif /* CONFIG_NFS_V4_1 */ | |
1517 | ||
9b7b9fcc AA |
1518 | static void encode_sequence(struct xdr_stream *xdr, |
1519 | const struct nfs4_sequence_args *args, | |
1520 | struct compound_hdr *hdr) | |
1521 | { | |
1522 | #if defined(CONFIG_NFS_V4_1) | |
1523 | struct nfs4_session *session = args->sa_session; | |
1524 | ||
1525 | if (!session) | |
1526 | return; | |
1527 | ||
1528 | /* stub */ | |
1529 | hdr->nops++; | |
1530 | hdr->replen += decode_sequence_maxsz; | |
1531 | #endif /* CONFIG_NFS_V4_1 */ | |
1532 | } | |
1533 | ||
1da177e4 LT |
1534 | /* |
1535 | * END OF "GENERIC" ENCODE ROUTINES. | |
1536 | */ | |
1537 | ||
66cc0429 BH |
1538 | static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) |
1539 | { | |
1540 | #if defined(CONFIG_NFS_V4_1) | |
1541 | if (args->sa_session) | |
1542 | return args->sa_session->clp->cl_minorversion; | |
1543 | #endif /* CONFIG_NFS_V4_1 */ | |
1544 | return 0; | |
1545 | } | |
1546 | ||
1da177e4 LT |
1547 | /* |
1548 | * Encode an ACCESS request | |
1549 | */ | |
8687b63a | 1550 | static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) |
1da177e4 LT |
1551 | { |
1552 | struct xdr_stream xdr; | |
1553 | struct compound_hdr hdr = { | |
66cc0429 | 1554 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1555 | }; |
1da177e4 LT |
1556 | |
1557 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1558 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1559 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1560 | encode_putfh(&xdr, args->fh, &hdr); |
1561 | encode_access(&xdr, args->access, &hdr); | |
1562 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1563 | encode_nops(&hdr); |
cf8cdbe5 | 1564 | return 0; |
1da177e4 LT |
1565 | } |
1566 | ||
1567 | /* | |
1568 | * Encode LOOKUP request | |
1569 | */ | |
8687b63a | 1570 | static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) |
1da177e4 LT |
1571 | { |
1572 | struct xdr_stream xdr; | |
1573 | struct compound_hdr hdr = { | |
66cc0429 | 1574 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1575 | }; |
1da177e4 LT |
1576 | |
1577 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1578 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1579 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1580 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1581 | encode_lookup(&xdr, args->name, &hdr); | |
1582 | encode_getfh(&xdr, &hdr); | |
1583 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1584 | encode_nops(&hdr); |
cf8cdbe5 | 1585 | return 0; |
1da177e4 LT |
1586 | } |
1587 | ||
1588 | /* | |
1589 | * Encode LOOKUP_ROOT request | |
1590 | */ | |
8687b63a | 1591 | static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) |
1da177e4 LT |
1592 | { |
1593 | struct xdr_stream xdr; | |
1594 | struct compound_hdr hdr = { | |
66cc0429 | 1595 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1596 | }; |
1da177e4 LT |
1597 | |
1598 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1599 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1600 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1601 | encode_putrootfh(&xdr, &hdr); |
1602 | encode_getfh(&xdr, &hdr); | |
1603 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1604 | encode_nops(&hdr); |
cf8cdbe5 | 1605 | return 0; |
1da177e4 LT |
1606 | } |
1607 | ||
1608 | /* | |
1609 | * Encode REMOVE request | |
1610 | */ | |
4fdc17b2 | 1611 | static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) |
1da177e4 LT |
1612 | { |
1613 | struct xdr_stream xdr; | |
1614 | struct compound_hdr hdr = { | |
66cc0429 | 1615 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1616 | }; |
1da177e4 LT |
1617 | |
1618 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1619 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1620 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1621 | encode_putfh(&xdr, args->fh, &hdr); |
1622 | encode_remove(&xdr, &args->name, &hdr); | |
1623 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1624 | encode_nops(&hdr); |
cf8cdbe5 | 1625 | return 0; |
1da177e4 LT |
1626 | } |
1627 | ||
1628 | /* | |
1629 | * Encode RENAME request | |
1630 | */ | |
8687b63a | 1631 | static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) |
1da177e4 LT |
1632 | { |
1633 | struct xdr_stream xdr; | |
1634 | struct compound_hdr hdr = { | |
66cc0429 | 1635 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1636 | }; |
1da177e4 LT |
1637 | |
1638 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1639 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1640 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1641 | encode_putfh(&xdr, args->old_dir, &hdr); |
1642 | encode_savefh(&xdr, &hdr); | |
1643 | encode_putfh(&xdr, args->new_dir, &hdr); | |
1644 | encode_rename(&xdr, args->old_name, args->new_name, &hdr); | |
1645 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1646 | encode_restorefh(&xdr, &hdr); | |
1647 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1648 | encode_nops(&hdr); |
cf8cdbe5 | 1649 | return 0; |
1da177e4 LT |
1650 | } |
1651 | ||
1652 | /* | |
1653 | * Encode LINK request | |
1654 | */ | |
8687b63a | 1655 | static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) |
1da177e4 LT |
1656 | { |
1657 | struct xdr_stream xdr; | |
1658 | struct compound_hdr hdr = { | |
66cc0429 | 1659 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1660 | }; |
1da177e4 LT |
1661 | |
1662 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1663 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1664 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1665 | encode_putfh(&xdr, args->fh, &hdr); |
1666 | encode_savefh(&xdr, &hdr); | |
1667 | encode_putfh(&xdr, args->dir_fh, &hdr); | |
1668 | encode_link(&xdr, args->name, &hdr); | |
1669 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1670 | encode_restorefh(&xdr, &hdr); | |
1671 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1672 | encode_nops(&hdr); |
cf8cdbe5 | 1673 | return 0; |
1da177e4 LT |
1674 | } |
1675 | ||
1676 | /* | |
1677 | * Encode CREATE request | |
1678 | */ | |
8687b63a | 1679 | static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1680 | { |
1681 | struct xdr_stream xdr; | |
1682 | struct compound_hdr hdr = { | |
66cc0429 | 1683 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1684 | }; |
1da177e4 LT |
1685 | |
1686 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1687 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1688 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1689 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1690 | encode_savefh(&xdr, &hdr); | |
1691 | encode_create(&xdr, args, &hdr); | |
1692 | encode_getfh(&xdr, &hdr); | |
1693 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1694 | encode_restorefh(&xdr, &hdr); | |
1695 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1696 | encode_nops(&hdr); |
cf8cdbe5 | 1697 | return 0; |
1da177e4 LT |
1698 | } |
1699 | ||
1700 | /* | |
1701 | * Encode SYMLINK request | |
1702 | */ | |
8687b63a | 1703 | static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1704 | { |
1705 | return nfs4_xdr_enc_create(req, p, args); | |
1706 | } | |
1707 | ||
1708 | /* | |
1709 | * Encode GETATTR request | |
1710 | */ | |
8687b63a | 1711 | static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) |
1da177e4 LT |
1712 | { |
1713 | struct xdr_stream xdr; | |
1714 | struct compound_hdr hdr = { | |
66cc0429 | 1715 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1716 | }; |
1da177e4 LT |
1717 | |
1718 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1719 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1720 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1721 | encode_putfh(&xdr, args->fh, &hdr); |
1722 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1723 | encode_nops(&hdr); |
cf8cdbe5 | 1724 | return 0; |
1da177e4 LT |
1725 | } |
1726 | ||
1727 | /* | |
1728 | * Encode a CLOSE request | |
1729 | */ | |
8687b63a | 1730 | static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 | 1731 | { |
05d564fe AA |
1732 | struct xdr_stream xdr; |
1733 | struct compound_hdr hdr = { | |
66cc0429 | 1734 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 1735 | }; |
05d564fe AA |
1736 | |
1737 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1738 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1739 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1740 | encode_putfh(&xdr, args->fh, &hdr); |
1741 | encode_close(&xdr, args, &hdr); | |
1742 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1743 | encode_nops(&hdr); |
cf8cdbe5 | 1744 | return 0; |
1da177e4 LT |
1745 | } |
1746 | ||
1747 | /* | |
1748 | * Encode an OPEN request | |
1749 | */ | |
8687b63a | 1750 | static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1751 | { |
1752 | struct xdr_stream xdr; | |
1753 | struct compound_hdr hdr = { | |
66cc0429 | 1754 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1755 | }; |
1da177e4 LT |
1756 | |
1757 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1758 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1759 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1760 | encode_putfh(&xdr, args->fh, &hdr); |
1761 | encode_savefh(&xdr, &hdr); | |
1762 | encode_open(&xdr, args, &hdr); | |
1763 | encode_getfh(&xdr, &hdr); | |
1764 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1765 | encode_restorefh(&xdr, &hdr); | |
1766 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1767 | encode_nops(&hdr); |
cf8cdbe5 | 1768 | return 0; |
1da177e4 LT |
1769 | } |
1770 | ||
1771 | /* | |
1772 | * Encode an OPEN_CONFIRM request | |
1773 | */ | |
8687b63a | 1774 | static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) |
1da177e4 LT |
1775 | { |
1776 | struct xdr_stream xdr; | |
1777 | struct compound_hdr hdr = { | |
d017931c | 1778 | .nops = 0, |
1da177e4 | 1779 | }; |
1da177e4 LT |
1780 | |
1781 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1782 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1783 | encode_putfh(&xdr, args->fh, &hdr); |
1784 | encode_open_confirm(&xdr, args, &hdr); | |
d017931c | 1785 | encode_nops(&hdr); |
cf8cdbe5 | 1786 | return 0; |
1da177e4 LT |
1787 | } |
1788 | ||
1789 | /* | |
1790 | * Encode an OPEN request with no attributes. | |
1791 | */ | |
8687b63a | 1792 | static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1793 | { |
1794 | struct xdr_stream xdr; | |
1795 | struct compound_hdr hdr = { | |
66cc0429 | 1796 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1797 | }; |
1da177e4 LT |
1798 | |
1799 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1800 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1801 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1802 | encode_putfh(&xdr, args->fh, &hdr); |
1803 | encode_open(&xdr, args, &hdr); | |
1804 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1805 | encode_nops(&hdr); |
cf8cdbe5 | 1806 | return 0; |
1da177e4 LT |
1807 | } |
1808 | ||
1809 | /* | |
1810 | * Encode an OPEN_DOWNGRADE request | |
1811 | */ | |
8687b63a | 1812 | static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 LT |
1813 | { |
1814 | struct xdr_stream xdr; | |
1815 | struct compound_hdr hdr = { | |
66cc0429 | 1816 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1817 | }; |
1da177e4 LT |
1818 | |
1819 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1820 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1821 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1822 | encode_putfh(&xdr, args->fh, &hdr); |
1823 | encode_open_downgrade(&xdr, args, &hdr); | |
1824 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1825 | encode_nops(&hdr); |
cf8cdbe5 | 1826 | return 0; |
1da177e4 LT |
1827 | } |
1828 | ||
1829 | /* | |
1830 | * Encode a LOCK request | |
1831 | */ | |
8687b63a | 1832 | static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) |
1da177e4 LT |
1833 | { |
1834 | struct xdr_stream xdr; | |
1835 | struct compound_hdr hdr = { | |
66cc0429 | 1836 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1837 | }; |
1da177e4 LT |
1838 | |
1839 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1840 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1841 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1842 | encode_putfh(&xdr, args->fh, &hdr); |
1843 | encode_lock(&xdr, args, &hdr); | |
d017931c | 1844 | encode_nops(&hdr); |
cf8cdbe5 | 1845 | return 0; |
1da177e4 LT |
1846 | } |
1847 | ||
1848 | /* | |
1849 | * Encode a LOCKT request | |
1850 | */ | |
8687b63a | 1851 | static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) |
1da177e4 LT |
1852 | { |
1853 | struct xdr_stream xdr; | |
1854 | struct compound_hdr hdr = { | |
66cc0429 | 1855 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1856 | }; |
1da177e4 LT |
1857 | |
1858 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1859 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1860 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1861 | encode_putfh(&xdr, args->fh, &hdr); |
1862 | encode_lockt(&xdr, args, &hdr); | |
d017931c | 1863 | encode_nops(&hdr); |
cf8cdbe5 | 1864 | return 0; |
1da177e4 LT |
1865 | } |
1866 | ||
1867 | /* | |
1868 | * Encode a LOCKU request | |
1869 | */ | |
8687b63a | 1870 | static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) |
1da177e4 LT |
1871 | { |
1872 | struct xdr_stream xdr; | |
1873 | struct compound_hdr hdr = { | |
66cc0429 | 1874 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1875 | }; |
1da177e4 LT |
1876 | |
1877 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1878 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1879 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1880 | encode_putfh(&xdr, args->fh, &hdr); |
1881 | encode_locku(&xdr, args, &hdr); | |
d017931c | 1882 | encode_nops(&hdr); |
cf8cdbe5 | 1883 | return 0; |
1da177e4 LT |
1884 | } |
1885 | ||
1886 | /* | |
1887 | * Encode a READLINK request | |
1888 | */ | |
8687b63a | 1889 | static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) |
1da177e4 LT |
1890 | { |
1891 | struct xdr_stream xdr; | |
1892 | struct compound_hdr hdr = { | |
66cc0429 | 1893 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1894 | }; |
1da177e4 LT |
1895 | |
1896 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1897 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1898 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1899 | encode_putfh(&xdr, args->fh, &hdr); |
1900 | encode_readlink(&xdr, args, req, &hdr); | |
e3a535e1 | 1901 | |
28f56694 | 1902 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
e3a535e1 | 1903 | args->pgbase, args->pglen); |
d017931c | 1904 | encode_nops(&hdr); |
cf8cdbe5 | 1905 | return 0; |
1da177e4 LT |
1906 | } |
1907 | ||
1908 | /* | |
1909 | * Encode a READDIR request | |
1910 | */ | |
8687b63a | 1911 | static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) |
1da177e4 LT |
1912 | { |
1913 | struct xdr_stream xdr; | |
1914 | struct compound_hdr hdr = { | |
66cc0429 | 1915 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1916 | }; |
1da177e4 LT |
1917 | |
1918 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1919 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1920 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1921 | encode_putfh(&xdr, args->fh, &hdr); |
1922 | encode_readdir(&xdr, args, req, &hdr); | |
d6ac02df | 1923 | |
28f56694 | 1924 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
d6ac02df TM |
1925 | args->pgbase, args->count); |
1926 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", | |
28f56694 | 1927 | __func__, hdr.replen << 2, args->pages, |
d6ac02df | 1928 | args->pgbase, args->count); |
d017931c | 1929 | encode_nops(&hdr); |
cf8cdbe5 | 1930 | return 0; |
1da177e4 LT |
1931 | } |
1932 | ||
1933 | /* | |
1934 | * Encode a READ request | |
1935 | */ | |
8687b63a | 1936 | static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) |
1da177e4 | 1937 | { |
1da177e4 LT |
1938 | struct xdr_stream xdr; |
1939 | struct compound_hdr hdr = { | |
66cc0429 | 1940 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1941 | }; |
1da177e4 LT |
1942 | |
1943 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1944 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1945 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1946 | encode_putfh(&xdr, args->fh, &hdr); |
1947 | encode_read(&xdr, args, &hdr); | |
1da177e4 | 1948 | |
28f56694 | 1949 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, |
1da177e4 | 1950 | args->pages, args->pgbase, args->count); |
4f22ccc3 | 1951 | req->rq_rcv_buf.flags |= XDRBUF_READ; |
d017931c | 1952 | encode_nops(&hdr); |
cf8cdbe5 | 1953 | return 0; |
1da177e4 LT |
1954 | } |
1955 | ||
1956 | /* | |
1957 | * Encode an SETATTR request | |
1958 | */ | |
8687b63a | 1959 | static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) |
1da177e4 | 1960 | { |
05d564fe AA |
1961 | struct xdr_stream xdr; |
1962 | struct compound_hdr hdr = { | |
66cc0429 | 1963 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 1964 | }; |
05d564fe AA |
1965 | |
1966 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1967 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1968 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
1969 | encode_putfh(&xdr, args->fh, &hdr); |
1970 | encode_setattr(&xdr, args, args->server, &hdr); | |
1971 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1972 | encode_nops(&hdr); |
cf8cdbe5 | 1973 | return 0; |
1da177e4 LT |
1974 | } |
1975 | ||
029d105e BF |
1976 | /* |
1977 | * Encode a GETACL request | |
1978 | */ | |
1979 | static int | |
8687b63a | 1980 | nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, |
029d105e BF |
1981 | struct nfs_getaclargs *args) |
1982 | { | |
1983 | struct xdr_stream xdr; | |
029d105e | 1984 | struct compound_hdr hdr = { |
66cc0429 | 1985 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
029d105e | 1986 | }; |
28f56694 | 1987 | uint32_t replen; |
029d105e BF |
1988 | |
1989 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1990 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 1991 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 | 1992 | encode_putfh(&xdr, args->fh, &hdr); |
28f56694 | 1993 | replen = hdr.replen + nfs4_fattr_bitmap_maxsz + 1; |
cf8cdbe5 AA |
1994 | encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); |
1995 | ||
28f56694 | 1996 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, |
029d105e | 1997 | args->acl_pages, args->acl_pgbase, args->acl_len); |
d017931c | 1998 | encode_nops(&hdr); |
cf8cdbe5 | 1999 | return 0; |
029d105e BF |
2000 | } |
2001 | ||
1da177e4 LT |
2002 | /* |
2003 | * Encode a WRITE request | |
2004 | */ | |
8687b63a | 2005 | static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
2006 | { |
2007 | struct xdr_stream xdr; | |
2008 | struct compound_hdr hdr = { | |
66cc0429 | 2009 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2010 | }; |
1da177e4 LT |
2011 | |
2012 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2013 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2014 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2015 | encode_putfh(&xdr, args->fh, &hdr); |
2016 | encode_write(&xdr, args, &hdr); | |
4f22ccc3 | 2017 | req->rq_snd_buf.flags |= XDRBUF_WRITE; |
cf8cdbe5 | 2018 | encode_getfattr(&xdr, args->bitmask, &hdr); |
d017931c | 2019 | encode_nops(&hdr); |
cf8cdbe5 | 2020 | return 0; |
1da177e4 LT |
2021 | } |
2022 | ||
2023 | /* | |
2024 | * a COMMIT request | |
2025 | */ | |
8687b63a | 2026 | static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
2027 | { |
2028 | struct xdr_stream xdr; | |
2029 | struct compound_hdr hdr = { | |
66cc0429 | 2030 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2031 | }; |
1da177e4 LT |
2032 | |
2033 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2034 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2035 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2036 | encode_putfh(&xdr, args->fh, &hdr); |
2037 | encode_commit(&xdr, args, &hdr); | |
2038 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2039 | encode_nops(&hdr); |
cf8cdbe5 | 2040 | return 0; |
1da177e4 LT |
2041 | } |
2042 | ||
2043 | /* | |
2044 | * FSINFO request | |
2045 | */ | |
8687b63a | 2046 | static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *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_fsinfo(&xdr, args->bitmask, &hdr); | |
d017931c | 2058 | encode_nops(&hdr); |
cf8cdbe5 | 2059 | return 0; |
1da177e4 LT |
2060 | } |
2061 | ||
2062 | /* | |
2063 | * a PATHCONF request | |
2064 | */ | |
8687b63a | 2065 | static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) |
1da177e4 | 2066 | { |
1da177e4 LT |
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_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], | |
2077 | &hdr); | |
d017931c | 2078 | encode_nops(&hdr); |
cf8cdbe5 | 2079 | return 0; |
1da177e4 LT |
2080 | } |
2081 | ||
2082 | /* | |
2083 | * a STATFS request | |
2084 | */ | |
8687b63a | 2085 | static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) |
1da177e4 | 2086 | { |
1da177e4 LT |
2087 | struct xdr_stream xdr; |
2088 | struct compound_hdr hdr = { | |
66cc0429 | 2089 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2090 | }; |
1da177e4 LT |
2091 | |
2092 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2093 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2094 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2095 | encode_putfh(&xdr, args->fh, &hdr); |
2096 | encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], | |
2097 | args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); | |
d017931c | 2098 | encode_nops(&hdr); |
cf8cdbe5 | 2099 | return 0; |
1da177e4 LT |
2100 | } |
2101 | ||
2102 | /* | |
2103 | * GETATTR_BITMAP request | |
2104 | */ | |
43652ad5 BH |
2105 | static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, |
2106 | struct nfs4_server_caps_arg *args) | |
1da177e4 LT |
2107 | { |
2108 | struct xdr_stream xdr; | |
2109 | struct compound_hdr hdr = { | |
66cc0429 | 2110 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2111 | }; |
1da177e4 LT |
2112 | |
2113 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2114 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2115 | encode_sequence(&xdr, &args->seq_args, &hdr); |
43652ad5 | 2116 | encode_putfh(&xdr, args->fhandle, &hdr); |
cf8cdbe5 AA |
2117 | encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| |
2118 | FATTR4_WORD0_LINK_SUPPORT| | |
2119 | FATTR4_WORD0_SYMLINK_SUPPORT| | |
2120 | FATTR4_WORD0_ACLSUPPORT, &hdr); | |
d017931c | 2121 | encode_nops(&hdr); |
cf8cdbe5 | 2122 | return 0; |
1da177e4 LT |
2123 | } |
2124 | ||
2125 | /* | |
2126 | * a RENEW request | |
2127 | */ | |
8687b63a | 2128 | static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2129 | { |
2130 | struct xdr_stream xdr; | |
2131 | struct compound_hdr hdr = { | |
d017931c | 2132 | .nops = 0, |
1da177e4 LT |
2133 | }; |
2134 | ||
2135 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2136 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 2137 | encode_renew(&xdr, clp, &hdr); |
d017931c | 2138 | encode_nops(&hdr); |
cf8cdbe5 | 2139 | return 0; |
1da177e4 LT |
2140 | } |
2141 | ||
2142 | /* | |
2143 | * a SETCLIENTID request | |
2144 | */ | |
8687b63a | 2145 | static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) |
1da177e4 LT |
2146 | { |
2147 | struct xdr_stream xdr; | |
2148 | struct compound_hdr hdr = { | |
d017931c | 2149 | .nops = 0, |
1da177e4 LT |
2150 | }; |
2151 | ||
2152 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2153 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 2154 | encode_setclientid(&xdr, sc, &hdr); |
d017931c | 2155 | encode_nops(&hdr); |
cf8cdbe5 | 2156 | return 0; |
1da177e4 LT |
2157 | } |
2158 | ||
2159 | /* | |
2160 | * a SETCLIENTID_CONFIRM request | |
2161 | */ | |
8687b63a | 2162 | static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2163 | { |
2164 | struct xdr_stream xdr; | |
2165 | struct compound_hdr hdr = { | |
d017931c | 2166 | .nops = 0, |
1da177e4 LT |
2167 | }; |
2168 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
1da177e4 LT |
2169 | |
2170 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2171 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
2172 | encode_setclientid_confirm(&xdr, clp, &hdr); |
2173 | encode_putrootfh(&xdr, &hdr); | |
2174 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
d017931c | 2175 | encode_nops(&hdr); |
cf8cdbe5 | 2176 | return 0; |
1da177e4 LT |
2177 | } |
2178 | ||
2179 | /* | |
2180 | * DELEGRETURN request | |
2181 | */ | |
8687b63a | 2182 | static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) |
1da177e4 LT |
2183 | { |
2184 | struct xdr_stream xdr; | |
2185 | struct compound_hdr hdr = { | |
66cc0429 | 2186 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2187 | }; |
1da177e4 LT |
2188 | |
2189 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2190 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2191 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2192 | encode_putfh(&xdr, args->fhandle, &hdr); |
2193 | encode_delegreturn(&xdr, args->stateid, &hdr); | |
2194 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2195 | encode_nops(&hdr); |
cf8cdbe5 | 2196 | return 0; |
1da177e4 LT |
2197 | } |
2198 | ||
683b57b4 TM |
2199 | /* |
2200 | * Encode FS_LOCATIONS request | |
2201 | */ | |
8687b63a | 2202 | static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) |
683b57b4 TM |
2203 | { |
2204 | struct xdr_stream xdr; | |
2205 | struct compound_hdr hdr = { | |
66cc0429 | 2206 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
683b57b4 | 2207 | }; |
28f56694 | 2208 | uint32_t replen; |
683b57b4 TM |
2209 | |
2210 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2211 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 2212 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 AA |
2213 | encode_putfh(&xdr, args->dir_fh, &hdr); |
2214 | encode_lookup(&xdr, args->name, &hdr); | |
28f56694 | 2215 | replen = hdr.replen; /* get the attribute into args->page */ |
cf8cdbe5 AA |
2216 | encode_fs_locations(&xdr, args->bitmask, &hdr); |
2217 | ||
28f56694 | 2218 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, |
683b57b4 | 2219 | 0, PAGE_SIZE); |
d017931c | 2220 | encode_nops(&hdr); |
cf8cdbe5 | 2221 | return 0; |
683b57b4 TM |
2222 | } |
2223 | ||
99fe60d0 BH |
2224 | #if defined(CONFIG_NFS_V4_1) |
2225 | /* | |
2226 | * EXCHANGE_ID request | |
2227 | */ | |
2228 | static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, | |
2229 | struct nfs41_exchange_id_args *args) | |
2230 | { | |
2231 | struct xdr_stream xdr; | |
2232 | struct compound_hdr hdr = { | |
2233 | .minorversion = args->client->cl_minorversion, | |
2234 | }; | |
2235 | ||
2236 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2237 | encode_compound_hdr(&xdr, req, &hdr); | |
2238 | encode_exchange_id(&xdr, args, &hdr); | |
2239 | encode_nops(&hdr); | |
2240 | return 0; | |
2241 | } | |
2050f0cc AA |
2242 | |
2243 | /* | |
2244 | * a GET_LEASE_TIME request | |
2245 | */ | |
2246 | static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, | |
2247 | struct nfs4_get_lease_time_args *args) | |
2248 | { | |
2249 | struct xdr_stream xdr; | |
2250 | struct compound_hdr hdr = { | |
2251 | .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), | |
2252 | }; | |
2253 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
2254 | ||
2255 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2256 | encode_compound_hdr(&xdr, req, &hdr); | |
2257 | encode_sequence(&xdr, &args->la_seq_args, &hdr); | |
2258 | encode_putrootfh(&xdr, &hdr); | |
2259 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
2260 | encode_nops(&hdr); | |
2261 | return 0; | |
2262 | } | |
99fe60d0 BH |
2263 | #endif /* CONFIG_NFS_V4_1 */ |
2264 | ||
1da177e4 LT |
2265 | /* |
2266 | * START OF "GENERIC" DECODE ROUTINES. | |
2267 | * These may look a little ugly since they are imported from a "generic" | |
2268 | * set of XDR encode/decode routines which are intended to be shared by | |
2269 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
2270 | * | |
2271 | * If the pain of reading these is too great, it should be a straightforward | |
2272 | * task to translate them into Linux-specific versions which are more | |
2273 | * consistent with the style used in NFSv2/v3... | |
2274 | */ | |
2275 | #define READ32(x) (x) = ntohl(*p++) | |
2276 | #define READ64(x) do { \ | |
2277 | (x) = (u64)ntohl(*p++) << 32; \ | |
2278 | (x) |= ntohl(*p++); \ | |
2279 | } while (0) | |
2280 | #define READTIME(x) do { \ | |
2281 | p++; \ | |
2282 | (x.tv_sec) = ntohl(*p++); \ | |
2283 | (x.tv_nsec) = ntohl(*p++); \ | |
2284 | } while (0) | |
2285 | #define COPYMEM(x,nbytes) do { \ | |
2286 | memcpy((x), p, nbytes); \ | |
2287 | p += XDR_QUADLEN(nbytes); \ | |
2288 | } while (0) | |
2289 | ||
2290 | #define READ_BUF(nbytes) do { \ | |
2291 | p = xdr_inline_decode(xdr, nbytes); \ | |
e4cc6ee2 | 2292 | if (unlikely(!p)) { \ |
fe82a183 | 2293 | dprintk("nfs: %s: prematurely hit end of receive" \ |
3110ff80 | 2294 | " buffer\n", __func__); \ |
fe82a183 | 2295 | dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ |
3110ff80 | 2296 | __func__, xdr->p, nbytes, xdr->end); \ |
1da177e4 LT |
2297 | return -EIO; \ |
2298 | } \ | |
2299 | } while (0) | |
2300 | ||
683b57b4 | 2301 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
1da177e4 | 2302 | { |
8687b63a | 2303 | __be32 *p; |
1da177e4 LT |
2304 | |
2305 | READ_BUF(4); | |
2306 | READ32(*len); | |
2307 | READ_BUF(*len); | |
2308 | *string = (char *)p; | |
2309 | return 0; | |
2310 | } | |
2311 | ||
2312 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
2313 | { | |
8687b63a | 2314 | __be32 *p; |
1da177e4 LT |
2315 | |
2316 | READ_BUF(8); | |
2317 | READ32(hdr->status); | |
2318 | READ32(hdr->taglen); | |
6c0195a4 | 2319 | |
1da177e4 LT |
2320 | READ_BUF(hdr->taglen + 4); |
2321 | hdr->tag = (char *)p; | |
2322 | p += XDR_QUADLEN(hdr->taglen); | |
2323 | READ32(hdr->nops); | |
aadf6152 BH |
2324 | if (unlikely(hdr->nops < 1)) |
2325 | return nfs4_stat_to_errno(hdr->status); | |
1da177e4 LT |
2326 | return 0; |
2327 | } | |
2328 | ||
2329 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) | |
2330 | { | |
8687b63a | 2331 | __be32 *p; |
1da177e4 LT |
2332 | uint32_t opnum; |
2333 | int32_t nfserr; | |
2334 | ||
2335 | READ_BUF(8); | |
2336 | READ32(opnum); | |
2337 | if (opnum != expected) { | |
fe82a183 CL |
2338 | dprintk("nfs: Server returned operation" |
2339 | " %d but we issued a request for %d\n", | |
1da177e4 LT |
2340 | opnum, expected); |
2341 | return -EIO; | |
2342 | } | |
2343 | READ32(nfserr); | |
2344 | if (nfserr != NFS_OK) | |
856dff3d | 2345 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
2346 | return 0; |
2347 | } | |
2348 | ||
2349 | /* Dummy routine */ | |
adfa6f98 | 2350 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
1da177e4 | 2351 | { |
8687b63a | 2352 | __be32 *p; |
683b57b4 | 2353 | unsigned int strlen; |
1da177e4 LT |
2354 | char *str; |
2355 | ||
2356 | READ_BUF(12); | |
2357 | return decode_opaque_inline(xdr, &strlen, &str); | |
2358 | } | |
2359 | ||
2360 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) | |
2361 | { | |
8687b63a AV |
2362 | uint32_t bmlen; |
2363 | __be32 *p; | |
1da177e4 LT |
2364 | |
2365 | READ_BUF(4); | |
2366 | READ32(bmlen); | |
2367 | ||
2368 | bitmap[0] = bitmap[1] = 0; | |
2369 | READ_BUF((bmlen << 2)); | |
2370 | if (bmlen > 0) { | |
2371 | READ32(bitmap[0]); | |
2372 | if (bmlen > 1) | |
2373 | READ32(bitmap[1]); | |
2374 | } | |
2375 | return 0; | |
2376 | } | |
2377 | ||
8687b63a | 2378 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
1da177e4 | 2379 | { |
8687b63a | 2380 | __be32 *p; |
1da177e4 LT |
2381 | |
2382 | READ_BUF(4); | |
2383 | READ32(*attrlen); | |
2384 | *savep = xdr->p; | |
2385 | return 0; | |
2386 | } | |
2387 | ||
2388 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) | |
2389 | { | |
2390 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { | |
2391 | decode_attr_bitmap(xdr, bitmask); | |
2392 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; | |
2393 | } else | |
2394 | bitmask[0] = bitmask[1] = 0; | |
44109241 | 2395 | dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); |
1da177e4 LT |
2396 | return 0; |
2397 | } | |
2398 | ||
2399 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) | |
2400 | { | |
8687b63a | 2401 | __be32 *p; |
409924e4 | 2402 | int ret = 0; |
1da177e4 LT |
2403 | |
2404 | *type = 0; | |
2405 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) | |
2406 | return -EIO; | |
2407 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { | |
2408 | READ_BUF(4); | |
2409 | READ32(*type); | |
2410 | if (*type < NF4REG || *type > NF4NAMEDATTR) { | |
3110ff80 | 2411 | dprintk("%s: bad type %d\n", __func__, *type); |
1da177e4 LT |
2412 | return -EIO; |
2413 | } | |
2414 | bitmap[0] &= ~FATTR4_WORD0_TYPE; | |
409924e4 | 2415 | ret = NFS_ATTR_FATTR_TYPE; |
1da177e4 | 2416 | } |
bca79478 | 2417 | dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); |
409924e4 | 2418 | return ret; |
1da177e4 LT |
2419 | } |
2420 | ||
2421 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) | |
2422 | { | |
8687b63a | 2423 | __be32 *p; |
409924e4 | 2424 | int ret = 0; |
1da177e4 LT |
2425 | |
2426 | *change = 0; | |
2427 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) | |
2428 | return -EIO; | |
2429 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { | |
2430 | READ_BUF(8); | |
2431 | READ64(*change); | |
2432 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; | |
409924e4 | 2433 | ret = NFS_ATTR_FATTR_CHANGE; |
1da177e4 | 2434 | } |
3110ff80 | 2435 | dprintk("%s: change attribute=%Lu\n", __func__, |
1da177e4 | 2436 | (unsigned long long)*change); |
409924e4 | 2437 | return ret; |
1da177e4 LT |
2438 | } |
2439 | ||
2440 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) | |
2441 | { | |
8687b63a | 2442 | __be32 *p; |
409924e4 | 2443 | int ret = 0; |
1da177e4 LT |
2444 | |
2445 | *size = 0; | |
2446 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) | |
2447 | return -EIO; | |
2448 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { | |
2449 | READ_BUF(8); | |
2450 | READ64(*size); | |
2451 | bitmap[0] &= ~FATTR4_WORD0_SIZE; | |
409924e4 | 2452 | ret = NFS_ATTR_FATTR_SIZE; |
1da177e4 | 2453 | } |
3110ff80 | 2454 | dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); |
409924e4 | 2455 | return ret; |
1da177e4 LT |
2456 | } |
2457 | ||
2458 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2459 | { | |
8687b63a | 2460 | __be32 *p; |
1da177e4 LT |
2461 | |
2462 | *res = 0; | |
2463 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) | |
2464 | return -EIO; | |
2465 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { | |
2466 | READ_BUF(4); | |
2467 | READ32(*res); | |
2468 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; | |
2469 | } | |
3110ff80 | 2470 | dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2471 | return 0; |
2472 | } | |
2473 | ||
2474 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2475 | { | |
8687b63a | 2476 | __be32 *p; |
1da177e4 LT |
2477 | |
2478 | *res = 0; | |
2479 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) | |
2480 | return -EIO; | |
2481 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { | |
2482 | READ_BUF(4); | |
2483 | READ32(*res); | |
2484 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; | |
2485 | } | |
3110ff80 | 2486 | dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2487 | return 0; |
2488 | } | |
2489 | ||
8b4bdcf8 | 2490 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
1da177e4 | 2491 | { |
8687b63a | 2492 | __be32 *p; |
409924e4 | 2493 | int ret = 0; |
1da177e4 LT |
2494 | |
2495 | fsid->major = 0; | |
2496 | fsid->minor = 0; | |
2497 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) | |
2498 | return -EIO; | |
2499 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { | |
2500 | READ_BUF(16); | |
2501 | READ64(fsid->major); | |
2502 | READ64(fsid->minor); | |
2503 | bitmap[0] &= ~FATTR4_WORD0_FSID; | |
409924e4 | 2504 | ret = NFS_ATTR_FATTR_FSID; |
1da177e4 | 2505 | } |
3110ff80 | 2506 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, |
1da177e4 LT |
2507 | (unsigned long long)fsid->major, |
2508 | (unsigned long long)fsid->minor); | |
409924e4 | 2509 | return ret; |
1da177e4 LT |
2510 | } |
2511 | ||
2512 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2513 | { | |
8687b63a | 2514 | __be32 *p; |
1da177e4 LT |
2515 | |
2516 | *res = 60; | |
2517 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) | |
2518 | return -EIO; | |
2519 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { | |
2520 | READ_BUF(4); | |
2521 | READ32(*res); | |
2522 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; | |
2523 | } | |
3110ff80 | 2524 | dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2525 | return 0; |
2526 | } | |
2527 | ||
2528 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2529 | { | |
8687b63a | 2530 | __be32 *p; |
1da177e4 LT |
2531 | |
2532 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; | |
2533 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) | |
2534 | return -EIO; | |
2535 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { | |
2536 | READ_BUF(4); | |
2537 | READ32(*res); | |
2538 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; | |
2539 | } | |
3110ff80 | 2540 | dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2541 | return 0; |
2542 | } | |
2543 | ||
2544 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) | |
2545 | { | |
8687b63a | 2546 | __be32 *p; |
409924e4 | 2547 | int ret = 0; |
1da177e4 LT |
2548 | |
2549 | *fileid = 0; | |
2550 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) | |
2551 | return -EIO; | |
2552 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { | |
2553 | READ_BUF(8); | |
2554 | READ64(*fileid); | |
2555 | bitmap[0] &= ~FATTR4_WORD0_FILEID; | |
409924e4 | 2556 | ret = NFS_ATTR_FATTR_FILEID; |
1da177e4 | 2557 | } |
3110ff80 | 2558 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2559 | return ret; |
1da177e4 LT |
2560 | } |
2561 | ||
99baf625 MN |
2562 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
2563 | { | |
8687b63a | 2564 | __be32 *p; |
409924e4 | 2565 | int ret = 0; |
99baf625 MN |
2566 | |
2567 | *fileid = 0; | |
2568 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) | |
2569 | return -EIO; | |
2570 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { | |
2571 | READ_BUF(8); | |
2572 | READ64(*fileid); | |
2573 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
409924e4 | 2574 | ret = NFS_ATTR_FATTR_FILEID; |
99baf625 | 2575 | } |
3110ff80 | 2576 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2577 | return ret; |
99baf625 MN |
2578 | } |
2579 | ||
1da177e4 LT |
2580 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2581 | { | |
8687b63a | 2582 | __be32 *p; |
1da177e4 LT |
2583 | int status = 0; |
2584 | ||
2585 | *res = 0; | |
2586 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) | |
2587 | return -EIO; | |
2588 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { | |
2589 | READ_BUF(8); | |
2590 | READ64(*res); | |
2591 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; | |
2592 | } | |
3110ff80 | 2593 | dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2594 | return status; |
2595 | } | |
2596 | ||
2597 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2598 | { | |
8687b63a | 2599 | __be32 *p; |
1da177e4 LT |
2600 | int status = 0; |
2601 | ||
2602 | *res = 0; | |
2603 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) | |
2604 | return -EIO; | |
2605 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { | |
2606 | READ_BUF(8); | |
2607 | READ64(*res); | |
2608 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; | |
2609 | } | |
3110ff80 | 2610 | dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2611 | return status; |
2612 | } | |
2613 | ||
2614 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2615 | { | |
8687b63a | 2616 | __be32 *p; |
1da177e4 LT |
2617 | int status = 0; |
2618 | ||
2619 | *res = 0; | |
2620 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) | |
2621 | return -EIO; | |
2622 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { | |
2623 | READ_BUF(8); | |
2624 | READ64(*res); | |
2625 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; | |
2626 | } | |
3110ff80 | 2627 | dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2628 | return status; |
2629 | } | |
2630 | ||
7aaa0b3b MN |
2631 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
2632 | { | |
464ad6b1 | 2633 | u32 n; |
8687b63a | 2634 | __be32 *p; |
7aaa0b3b MN |
2635 | int status = 0; |
2636 | ||
2637 | READ_BUF(4); | |
2638 | READ32(n); | |
33a43f28 AA |
2639 | if (n == 0) |
2640 | goto root_path; | |
7aaa0b3b MN |
2641 | dprintk("path "); |
2642 | path->ncomponents = 0; | |
2643 | while (path->ncomponents < n) { | |
2644 | struct nfs4_string *component = &path->components[path->ncomponents]; | |
2645 | status = decode_opaque_inline(xdr, &component->len, &component->data); | |
2646 | if (unlikely(status != 0)) | |
2647 | goto out_eio; | |
2648 | if (path->ncomponents != n) | |
2649 | dprintk("/"); | |
2650 | dprintk("%s", component->data); | |
2651 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) | |
2652 | path->ncomponents++; | |
2653 | else { | |
2654 | dprintk("cannot parse %d components in path\n", n); | |
2655 | goto out_eio; | |
2656 | } | |
2657 | } | |
2658 | out: | |
2659 | dprintk("\n"); | |
2660 | return status; | |
33a43f28 AA |
2661 | root_path: |
2662 | /* a root pathname is sent as a zero component4 */ | |
2663 | path->ncomponents = 1; | |
2664 | path->components[0].len=0; | |
2665 | path->components[0].data=NULL; | |
2666 | dprintk("path /\n"); | |
2667 | goto out; | |
7aaa0b3b MN |
2668 | out_eio: |
2669 | dprintk(" status %d", status); | |
2670 | status = -EIO; | |
2671 | goto out; | |
2672 | } | |
2673 | ||
2674 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) | |
683b57b4 TM |
2675 | { |
2676 | int n; | |
8687b63a | 2677 | __be32 *p; |
683b57b4 TM |
2678 | int status = -EIO; |
2679 | ||
2680 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) | |
2681 | goto out; | |
2682 | status = 0; | |
2683 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) | |
2684 | goto out; | |
3110ff80 | 2685 | dprintk("%s: fsroot ", __func__); |
7aaa0b3b | 2686 | status = decode_pathname(xdr, &res->fs_path); |
683b57b4 TM |
2687 | if (unlikely(status != 0)) |
2688 | goto out; | |
2689 | READ_BUF(4); | |
2690 | READ32(n); | |
2691 | if (n <= 0) | |
2692 | goto out_eio; | |
2693 | res->nlocations = 0; | |
2694 | while (res->nlocations < n) { | |
464ad6b1 | 2695 | u32 m; |
7aaa0b3b | 2696 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; |
683b57b4 | 2697 | |
7aaa0b3b MN |
2698 | READ_BUF(4); |
2699 | READ32(m); | |
7aaa0b3b MN |
2700 | |
2701 | loc->nservers = 0; | |
3110ff80 | 2702 | dprintk("%s: servers ", __func__); |
7aaa0b3b MN |
2703 | while (loc->nservers < m) { |
2704 | struct nfs4_string *server = &loc->servers[loc->nservers]; | |
2705 | status = decode_opaque_inline(xdr, &server->len, &server->data); | |
2706 | if (unlikely(status != 0)) | |
2707 | goto out_eio; | |
2708 | dprintk("%s ", server->data); | |
2709 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) | |
2710 | loc->nservers++; | |
2711 | else { | |
464ad6b1 CL |
2712 | unsigned int i; |
2713 | dprintk("%s: using first %u of %u servers " | |
2714 | "returned for location %u\n", | |
3110ff80 | 2715 | __func__, |
464ad6b1 CL |
2716 | NFS4_FS_LOCATION_MAXSERVERS, |
2717 | m, res->nlocations); | |
7aaa0b3b | 2718 | for (i = loc->nservers; i < m; i++) { |
2e42c3e2 | 2719 | unsigned int len; |
7aaa0b3b MN |
2720 | char *data; |
2721 | status = decode_opaque_inline(xdr, &len, &data); | |
2722 | if (unlikely(status != 0)) | |
2723 | goto out_eio; | |
2724 | } | |
2725 | } | |
2726 | } | |
2727 | status = decode_pathname(xdr, &loc->rootpath); | |
683b57b4 TM |
2728 | if (unlikely(status != 0)) |
2729 | goto out_eio; | |
7aaa0b3b | 2730 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
683b57b4 TM |
2731 | res->nlocations++; |
2732 | } | |
409924e4 TM |
2733 | if (res->nlocations != 0) |
2734 | status = NFS_ATTR_FATTR_V4_REFERRAL; | |
683b57b4 | 2735 | out: |
3110ff80 | 2736 | dprintk("%s: fs_locations done, error = %d\n", __func__, status); |
683b57b4 TM |
2737 | return status; |
2738 | out_eio: | |
2739 | status = -EIO; | |
2740 | goto out; | |
2741 | } | |
2742 | ||
1da177e4 LT |
2743 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2744 | { | |
8687b63a | 2745 | __be32 *p; |
1da177e4 LT |
2746 | int status = 0; |
2747 | ||
2748 | *res = 0; | |
2749 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) | |
2750 | return -EIO; | |
2751 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { | |
2752 | READ_BUF(8); | |
2753 | READ64(*res); | |
2754 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; | |
2755 | } | |
3110ff80 | 2756 | dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2757 | return status; |
2758 | } | |
2759 | ||
2760 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) | |
2761 | { | |
8687b63a | 2762 | __be32 *p; |
1da177e4 LT |
2763 | int status = 0; |
2764 | ||
2765 | *maxlink = 1; | |
2766 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) | |
2767 | return -EIO; | |
2768 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { | |
2769 | READ_BUF(4); | |
2770 | READ32(*maxlink); | |
2771 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; | |
2772 | } | |
3110ff80 | 2773 | dprintk("%s: maxlink=%u\n", __func__, *maxlink); |
1da177e4 LT |
2774 | return status; |
2775 | } | |
2776 | ||
2777 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) | |
2778 | { | |
8687b63a | 2779 | __be32 *p; |
1da177e4 LT |
2780 | int status = 0; |
2781 | ||
2782 | *maxname = 1024; | |
2783 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) | |
2784 | return -EIO; | |
2785 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { | |
2786 | READ_BUF(4); | |
2787 | READ32(*maxname); | |
2788 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; | |
2789 | } | |
3110ff80 | 2790 | dprintk("%s: maxname=%u\n", __func__, *maxname); |
1da177e4 LT |
2791 | return status; |
2792 | } | |
2793 | ||
2794 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2795 | { | |
8687b63a | 2796 | __be32 *p; |
1da177e4 LT |
2797 | int status = 0; |
2798 | ||
2799 | *res = 1024; | |
2800 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) | |
2801 | return -EIO; | |
2802 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { | |
2803 | uint64_t maxread; | |
2804 | READ_BUF(8); | |
2805 | READ64(maxread); | |
2806 | if (maxread > 0x7FFFFFFF) | |
2807 | maxread = 0x7FFFFFFF; | |
2808 | *res = (uint32_t)maxread; | |
2809 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; | |
2810 | } | |
3110ff80 | 2811 | dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
2812 | return status; |
2813 | } | |
2814 | ||
2815 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2816 | { | |
8687b63a | 2817 | __be32 *p; |
1da177e4 LT |
2818 | int status = 0; |
2819 | ||
2820 | *res = 1024; | |
2821 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) | |
2822 | return -EIO; | |
2823 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { | |
2824 | uint64_t maxwrite; | |
2825 | READ_BUF(8); | |
2826 | READ64(maxwrite); | |
2827 | if (maxwrite > 0x7FFFFFFF) | |
2828 | maxwrite = 0x7FFFFFFF; | |
2829 | *res = (uint32_t)maxwrite; | |
2830 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; | |
2831 | } | |
3110ff80 | 2832 | dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
2833 | return status; |
2834 | } | |
2835 | ||
bca79478 | 2836 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) |
1da177e4 | 2837 | { |
bca79478 | 2838 | uint32_t tmp; |
8687b63a | 2839 | __be32 *p; |
409924e4 | 2840 | int ret = 0; |
1da177e4 LT |
2841 | |
2842 | *mode = 0; | |
2843 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) | |
2844 | return -EIO; | |
2845 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { | |
2846 | READ_BUF(4); | |
bca79478 TM |
2847 | READ32(tmp); |
2848 | *mode = tmp & ~S_IFMT; | |
1da177e4 | 2849 | bitmap[1] &= ~FATTR4_WORD1_MODE; |
409924e4 | 2850 | ret = NFS_ATTR_FATTR_MODE; |
1da177e4 | 2851 | } |
3110ff80 | 2852 | dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); |
409924e4 | 2853 | return ret; |
1da177e4 LT |
2854 | } |
2855 | ||
2856 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) | |
2857 | { | |
8687b63a | 2858 | __be32 *p; |
409924e4 | 2859 | int ret = 0; |
1da177e4 LT |
2860 | |
2861 | *nlink = 1; | |
2862 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) | |
2863 | return -EIO; | |
2864 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { | |
2865 | READ_BUF(4); | |
2866 | READ32(*nlink); | |
2867 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; | |
409924e4 | 2868 | ret = NFS_ATTR_FATTR_NLINK; |
1da177e4 | 2869 | } |
3110ff80 | 2870 | dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); |
409924e4 | 2871 | return ret; |
1da177e4 LT |
2872 | } |
2873 | ||
2e42c3e2 | 2874 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) |
1da177e4 | 2875 | { |
8687b63a AV |
2876 | uint32_t len; |
2877 | __be32 *p; | |
409924e4 | 2878 | int ret = 0; |
1da177e4 LT |
2879 | |
2880 | *uid = -2; | |
2881 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) | |
2882 | return -EIO; | |
2883 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { | |
2884 | READ_BUF(4); | |
2885 | READ32(len); | |
2886 | READ_BUF(len); | |
2887 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
2888 | if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) |
2889 | ret = NFS_ATTR_FATTR_OWNER; | |
2890 | else | |
1da177e4 | 2891 | dprintk("%s: nfs_map_name_to_uid failed!\n", |
3110ff80 | 2892 | __func__); |
1da177e4 | 2893 | } else |
fe82a183 | 2894 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 2895 | __func__, len); |
1da177e4 LT |
2896 | bitmap[1] &= ~FATTR4_WORD1_OWNER; |
2897 | } | |
3110ff80 | 2898 | dprintk("%s: uid=%d\n", __func__, (int)*uid); |
409924e4 | 2899 | return ret; |
1da177e4 LT |
2900 | } |
2901 | ||
2e42c3e2 | 2902 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) |
1da177e4 | 2903 | { |
8687b63a AV |
2904 | uint32_t len; |
2905 | __be32 *p; | |
409924e4 | 2906 | int ret = 0; |
1da177e4 LT |
2907 | |
2908 | *gid = -2; | |
2909 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) | |
2910 | return -EIO; | |
2911 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { | |
2912 | READ_BUF(4); | |
2913 | READ32(len); | |
2914 | READ_BUF(len); | |
2915 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
2916 | if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) |
2917 | ret = NFS_ATTR_FATTR_GROUP; | |
2918 | else | |
1da177e4 | 2919 | dprintk("%s: nfs_map_group_to_gid failed!\n", |
3110ff80 | 2920 | __func__); |
1da177e4 | 2921 | } else |
fe82a183 | 2922 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 2923 | __func__, len); |
1da177e4 LT |
2924 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; |
2925 | } | |
3110ff80 | 2926 | dprintk("%s: gid=%d\n", __func__, (int)*gid); |
409924e4 | 2927 | return ret; |
1da177e4 LT |
2928 | } |
2929 | ||
2930 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) | |
2931 | { | |
8687b63a AV |
2932 | uint32_t major = 0, minor = 0; |
2933 | __be32 *p; | |
409924e4 | 2934 | int ret = 0; |
1da177e4 LT |
2935 | |
2936 | *rdev = MKDEV(0,0); | |
2937 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) | |
2938 | return -EIO; | |
2939 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { | |
2940 | dev_t tmp; | |
2941 | ||
2942 | READ_BUF(8); | |
2943 | READ32(major); | |
2944 | READ32(minor); | |
2945 | tmp = MKDEV(major, minor); | |
2946 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) | |
2947 | *rdev = tmp; | |
2948 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; | |
409924e4 | 2949 | ret = NFS_ATTR_FATTR_RDEV; |
1da177e4 | 2950 | } |
3110ff80 | 2951 | dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); |
409924e4 | 2952 | return ret; |
1da177e4 LT |
2953 | } |
2954 | ||
2955 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2956 | { | |
8687b63a | 2957 | __be32 *p; |
1da177e4 LT |
2958 | int status = 0; |
2959 | ||
2960 | *res = 0; | |
2961 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) | |
2962 | return -EIO; | |
2963 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { | |
2964 | READ_BUF(8); | |
2965 | READ64(*res); | |
2966 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; | |
2967 | } | |
3110ff80 | 2968 | dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2969 | return status; |
2970 | } | |
2971 | ||
2972 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2973 | { | |
8687b63a | 2974 | __be32 *p; |
1da177e4 LT |
2975 | int status = 0; |
2976 | ||
2977 | *res = 0; | |
2978 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) | |
2979 | return -EIO; | |
2980 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { | |
2981 | READ_BUF(8); | |
2982 | READ64(*res); | |
2983 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; | |
2984 | } | |
3110ff80 | 2985 | dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2986 | return status; |
2987 | } | |
2988 | ||
2989 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2990 | { | |
8687b63a | 2991 | __be32 *p; |
1da177e4 LT |
2992 | int status = 0; |
2993 | ||
2994 | *res = 0; | |
2995 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) | |
2996 | return -EIO; | |
2997 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { | |
2998 | READ_BUF(8); | |
2999 | READ64(*res); | |
3000 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; | |
3001 | } | |
3110ff80 | 3002 | dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
3003 | return status; |
3004 | } | |
3005 | ||
3006 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) | |
3007 | { | |
8687b63a | 3008 | __be32 *p; |
409924e4 | 3009 | int ret = 0; |
1da177e4 LT |
3010 | |
3011 | *used = 0; | |
3012 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) | |
3013 | return -EIO; | |
3014 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { | |
3015 | READ_BUF(8); | |
3016 | READ64(*used); | |
3017 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; | |
409924e4 | 3018 | ret = NFS_ATTR_FATTR_SPACE_USED; |
1da177e4 | 3019 | } |
3110ff80 | 3020 | dprintk("%s: space used=%Lu\n", __func__, |
1da177e4 | 3021 | (unsigned long long)*used); |
409924e4 | 3022 | return ret; |
1da177e4 LT |
3023 | } |
3024 | ||
3025 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) | |
3026 | { | |
8687b63a | 3027 | __be32 *p; |
1da177e4 LT |
3028 | uint64_t sec; |
3029 | uint32_t nsec; | |
3030 | ||
3031 | READ_BUF(12); | |
3032 | READ64(sec); | |
3033 | READ32(nsec); | |
3034 | time->tv_sec = (time_t)sec; | |
3035 | time->tv_nsec = (long)nsec; | |
3036 | return 0; | |
3037 | } | |
3038 | ||
3039 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3040 | { | |
3041 | int status = 0; | |
3042 | ||
3043 | time->tv_sec = 0; | |
3044 | time->tv_nsec = 0; | |
3045 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) | |
3046 | return -EIO; | |
3047 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { | |
3048 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3049 | if (status == 0) |
3050 | status = NFS_ATTR_FATTR_ATIME; | |
1da177e4 LT |
3051 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; |
3052 | } | |
3110ff80 | 3053 | dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3054 | return status; |
3055 | } | |
3056 | ||
3057 | static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3058 | { | |
3059 | int status = 0; | |
3060 | ||
3061 | time->tv_sec = 0; | |
3062 | time->tv_nsec = 0; | |
3063 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) | |
3064 | return -EIO; | |
3065 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { | |
3066 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3067 | if (status == 0) |
3068 | status = NFS_ATTR_FATTR_CTIME; | |
1da177e4 LT |
3069 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; |
3070 | } | |
3110ff80 | 3071 | dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3072 | return status; |
3073 | } | |
3074 | ||
3075 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3076 | { | |
3077 | int status = 0; | |
3078 | ||
3079 | time->tv_sec = 0; | |
3080 | time->tv_nsec = 0; | |
3081 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) | |
3082 | return -EIO; | |
3083 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { | |
3084 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3085 | if (status == 0) |
3086 | status = NFS_ATTR_FATTR_MTIME; | |
1da177e4 LT |
3087 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; |
3088 | } | |
3110ff80 | 3089 | dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3090 | return status; |
3091 | } | |
3092 | ||
8687b63a | 3093 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
1da177e4 LT |
3094 | { |
3095 | unsigned int attrwords = XDR_QUADLEN(attrlen); | |
3096 | unsigned int nwords = xdr->p - savep; | |
3097 | ||
3098 | if (unlikely(attrwords != nwords)) { | |
fe82a183 CL |
3099 | dprintk("%s: server returned incorrect attribute length: " |
3100 | "%u %c %u\n", | |
3110ff80 | 3101 | __func__, |
1da177e4 LT |
3102 | attrwords << 2, |
3103 | (attrwords < nwords) ? '<' : '>', | |
3104 | nwords << 2); | |
3105 | return -EIO; | |
3106 | } | |
3107 | return 0; | |
3108 | } | |
3109 | ||
3110 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3111 | { | |
8687b63a | 3112 | __be32 *p; |
1da177e4 LT |
3113 | |
3114 | READ_BUF(20); | |
3115 | READ32(cinfo->atomic); | |
3116 | READ64(cinfo->before); | |
3117 | READ64(cinfo->after); | |
3118 | return 0; | |
3119 | } | |
3120 | ||
3121 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) | |
3122 | { | |
8687b63a | 3123 | __be32 *p; |
1da177e4 LT |
3124 | uint32_t supp, acc; |
3125 | int status; | |
3126 | ||
3127 | status = decode_op_hdr(xdr, OP_ACCESS); | |
3128 | if (status) | |
3129 | return status; | |
3130 | READ_BUF(8); | |
3131 | READ32(supp); | |
3132 | READ32(acc); | |
3133 | access->supported = supp; | |
3134 | access->access = acc; | |
3135 | return 0; | |
3136 | } | |
3137 | ||
3138 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3139 | { | |
8687b63a | 3140 | __be32 *p; |
1da177e4 LT |
3141 | int status; |
3142 | ||
3143 | status = decode_op_hdr(xdr, OP_CLOSE); | |
c1d51931 TM |
3144 | if (status != -EIO) |
3145 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
3146 | if (status) |
3147 | return status; | |
8ae20abd TM |
3148 | READ_BUF(NFS4_STATEID_SIZE); |
3149 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3150 | return 0; |
3151 | } | |
3152 | ||
3153 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3154 | { | |
8687b63a | 3155 | __be32 *p; |
1da177e4 LT |
3156 | int status; |
3157 | ||
3158 | status = decode_op_hdr(xdr, OP_COMMIT); | |
3159 | if (status) | |
3160 | return status; | |
3161 | READ_BUF(8); | |
3162 | COPYMEM(res->verf->verifier, 8); | |
3163 | return 0; | |
3164 | } | |
3165 | ||
3166 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3167 | { | |
8687b63a | 3168 | __be32 *p; |
1da177e4 LT |
3169 | uint32_t bmlen; |
3170 | int status; | |
3171 | ||
3172 | status = decode_op_hdr(xdr, OP_CREATE); | |
3173 | if (status) | |
3174 | return status; | |
3175 | if ((status = decode_change_info(xdr, cinfo))) | |
3176 | return status; | |
3177 | READ_BUF(4); | |
3178 | READ32(bmlen); | |
3179 | READ_BUF(bmlen << 2); | |
3180 | return 0; | |
3181 | } | |
3182 | ||
3183 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) | |
3184 | { | |
8687b63a | 3185 | __be32 *savep; |
6c0195a4 | 3186 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 LT |
3187 | int status; |
3188 | ||
3189 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3190 | goto xdr_error; | |
3191 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3192 | goto xdr_error; | |
3193 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3194 | goto xdr_error; | |
3195 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) | |
3196 | goto xdr_error; | |
3197 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) | |
3198 | goto xdr_error; | |
3199 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) | |
3200 | goto xdr_error; | |
3201 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) | |
3202 | goto xdr_error; | |
3203 | status = verify_attr_len(xdr, savep, attrlen); | |
3204 | xdr_error: | |
3110ff80 | 3205 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3206 | return status; |
3207 | } | |
6c0195a4 | 3208 | |
1da177e4 LT |
3209 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) |
3210 | { | |
8687b63a | 3211 | __be32 *savep; |
6c0195a4 | 3212 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3213 | int status; |
6c0195a4 | 3214 | |
1da177e4 LT |
3215 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3216 | goto xdr_error; | |
3217 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3218 | goto xdr_error; | |
3219 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3220 | goto xdr_error; | |
3221 | ||
3222 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) | |
3223 | goto xdr_error; | |
3224 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) | |
3225 | goto xdr_error; | |
3226 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) | |
3227 | goto xdr_error; | |
3228 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) | |
3229 | goto xdr_error; | |
3230 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) | |
3231 | goto xdr_error; | |
3232 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) | |
3233 | goto xdr_error; | |
3234 | ||
3235 | status = verify_attr_len(xdr, savep, attrlen); | |
3236 | xdr_error: | |
3110ff80 | 3237 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3238 | return status; |
3239 | } | |
3240 | ||
3241 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) | |
3242 | { | |
8687b63a | 3243 | __be32 *savep; |
6c0195a4 | 3244 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3245 | int status; |
6c0195a4 | 3246 | |
1da177e4 LT |
3247 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3248 | goto xdr_error; | |
3249 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3250 | goto xdr_error; | |
3251 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3252 | goto xdr_error; | |
3253 | ||
3254 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) | |
3255 | goto xdr_error; | |
3256 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) | |
3257 | goto xdr_error; | |
3258 | ||
3259 | status = verify_attr_len(xdr, savep, attrlen); | |
3260 | xdr_error: | |
3110ff80 | 3261 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3262 | return status; |
3263 | } | |
3264 | ||
3265 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) | |
3266 | { | |
8687b63a | 3267 | __be32 *savep; |
1da177e4 LT |
3268 | uint32_t attrlen, |
3269 | bitmap[2] = {0}, | |
3270 | type; | |
bca79478 TM |
3271 | int status; |
3272 | umode_t fmode = 0; | |
99baf625 | 3273 | uint64_t fileid; |
1da177e4 | 3274 | |
f26c7a78 TM |
3275 | status = decode_op_hdr(xdr, OP_GETATTR); |
3276 | if (status < 0) | |
1da177e4 | 3277 | goto xdr_error; |
f26c7a78 TM |
3278 | |
3279 | status = decode_attr_bitmap(xdr, bitmap); | |
3280 | if (status < 0) | |
1da177e4 LT |
3281 | goto xdr_error; |
3282 | ||
f26c7a78 TM |
3283 | status = decode_attr_length(xdr, &attrlen, &savep); |
3284 | if (status < 0) | |
1da177e4 LT |
3285 | goto xdr_error; |
3286 | ||
3287 | ||
f26c7a78 TM |
3288 | status = decode_attr_type(xdr, bitmap, &type); |
3289 | if (status < 0) | |
1da177e4 | 3290 | goto xdr_error; |
409924e4 TM |
3291 | fattr->mode = 0; |
3292 | if (status != 0) { | |
3293 | fattr->mode |= nfs_type2fmt[type]; | |
3294 | fattr->valid |= status; | |
3295 | } | |
1da177e4 | 3296 | |
f26c7a78 TM |
3297 | status = decode_attr_change(xdr, bitmap, &fattr->change_attr); |
3298 | if (status < 0) | |
1da177e4 | 3299 | goto xdr_error; |
409924e4 | 3300 | fattr->valid |= status; |
f26c7a78 TM |
3301 | |
3302 | status = decode_attr_size(xdr, bitmap, &fattr->size); | |
3303 | if (status < 0) | |
1da177e4 | 3304 | goto xdr_error; |
409924e4 | 3305 | fattr->valid |= status; |
f26c7a78 TM |
3306 | |
3307 | status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); | |
3308 | if (status < 0) | |
1da177e4 | 3309 | goto xdr_error; |
409924e4 | 3310 | fattr->valid |= status; |
f26c7a78 TM |
3311 | |
3312 | status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); | |
3313 | if (status < 0) | |
1da177e4 | 3314 | goto xdr_error; |
409924e4 | 3315 | fattr->valid |= status; |
f26c7a78 TM |
3316 | |
3317 | status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, | |
7aaa0b3b | 3318 | struct nfs4_fs_locations, |
f26c7a78 TM |
3319 | fattr)); |
3320 | if (status < 0) | |
683b57b4 | 3321 | goto xdr_error; |
409924e4 | 3322 | fattr->valid |= status; |
f26c7a78 TM |
3323 | |
3324 | status = decode_attr_mode(xdr, bitmap, &fmode); | |
3325 | if (status < 0) | |
1da177e4 | 3326 | goto xdr_error; |
409924e4 TM |
3327 | if (status != 0) { |
3328 | fattr->mode |= fmode; | |
3329 | fattr->valid |= status; | |
3330 | } | |
f26c7a78 TM |
3331 | |
3332 | status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); | |
3333 | if (status < 0) | |
1da177e4 | 3334 | goto xdr_error; |
409924e4 | 3335 | fattr->valid |= status; |
f26c7a78 TM |
3336 | |
3337 | status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); | |
3338 | if (status < 0) | |
1da177e4 | 3339 | goto xdr_error; |
409924e4 | 3340 | fattr->valid |= status; |
f26c7a78 TM |
3341 | |
3342 | status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); | |
3343 | if (status < 0) | |
1da177e4 | 3344 | goto xdr_error; |
409924e4 | 3345 | fattr->valid |= status; |
f26c7a78 TM |
3346 | |
3347 | status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); | |
3348 | if (status < 0) | |
1da177e4 | 3349 | goto xdr_error; |
409924e4 | 3350 | fattr->valid |= status; |
f26c7a78 TM |
3351 | |
3352 | status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); | |
3353 | if (status < 0) | |
1da177e4 | 3354 | goto xdr_error; |
409924e4 | 3355 | fattr->valid |= status; |
f26c7a78 TM |
3356 | |
3357 | status = decode_attr_time_access(xdr, bitmap, &fattr->atime); | |
3358 | if (status < 0) | |
1da177e4 | 3359 | goto xdr_error; |
409924e4 | 3360 | fattr->valid |= status; |
f26c7a78 TM |
3361 | |
3362 | status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); | |
3363 | if (status < 0) | |
1da177e4 | 3364 | goto xdr_error; |
409924e4 | 3365 | fattr->valid |= status; |
f26c7a78 TM |
3366 | |
3367 | status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); | |
3368 | if (status < 0) | |
1da177e4 | 3369 | goto xdr_error; |
409924e4 | 3370 | fattr->valid |= status; |
f26c7a78 TM |
3371 | |
3372 | status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); | |
3373 | if (status < 0) | |
99baf625 | 3374 | goto xdr_error; |
409924e4 | 3375 | if (status != 0 && !(fattr->valid & status)) { |
99baf625 | 3376 | fattr->fileid = fileid; |
409924e4 TM |
3377 | fattr->valid |= status; |
3378 | } | |
f26c7a78 TM |
3379 | |
3380 | status = verify_attr_len(xdr, savep, attrlen); | |
1da177e4 | 3381 | xdr_error: |
3110ff80 | 3382 | dprintk("%s: xdr returned %d\n", __func__, -status); |
1da177e4 LT |
3383 | return status; |
3384 | } | |
3385 | ||
3386 | ||
3387 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) | |
3388 | { | |
8687b63a | 3389 | __be32 *savep; |
1da177e4 LT |
3390 | uint32_t attrlen, bitmap[2]; |
3391 | int status; | |
3392 | ||
3393 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3394 | goto xdr_error; | |
3395 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3396 | goto xdr_error; | |
3397 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3398 | goto xdr_error; | |
3399 | ||
3400 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ | |
3401 | ||
3402 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) | |
3403 | goto xdr_error; | |
3404 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) | |
3405 | goto xdr_error; | |
3406 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) | |
3407 | goto xdr_error; | |
3408 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; | |
3409 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) | |
3410 | goto xdr_error; | |
3411 | fsinfo->wtpref = fsinfo->wtmax; | |
3412 | ||
3413 | status = verify_attr_len(xdr, savep, attrlen); | |
3414 | xdr_error: | |
3110ff80 | 3415 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3416 | return status; |
3417 | } | |
3418 | ||
3419 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) | |
3420 | { | |
8687b63a | 3421 | __be32 *p; |
1da177e4 LT |
3422 | uint32_t len; |
3423 | int status; | |
3424 | ||
9936781d TM |
3425 | /* Zero handle first to allow comparisons */ |
3426 | memset(fh, 0, sizeof(*fh)); | |
3427 | ||
1da177e4 LT |
3428 | status = decode_op_hdr(xdr, OP_GETFH); |
3429 | if (status) | |
3430 | return status; | |
1da177e4 LT |
3431 | |
3432 | READ_BUF(4); | |
3433 | READ32(len); | |
3434 | if (len > NFS4_FHSIZE) | |
3435 | return -EIO; | |
3436 | fh->size = len; | |
3437 | READ_BUF(len); | |
3438 | COPYMEM(fh->data, len); | |
3439 | return 0; | |
3440 | } | |
3441 | ||
3442 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3443 | { | |
3444 | int status; | |
6c0195a4 | 3445 | |
1da177e4 LT |
3446 | status = decode_op_hdr(xdr, OP_LINK); |
3447 | if (status) | |
3448 | return status; | |
3449 | return decode_change_info(xdr, cinfo); | |
3450 | } | |
3451 | ||
3452 | /* | |
3453 | * We create the owner, so we know a proper owner.id length is 4. | |
3454 | */ | |
911d1aaf | 3455 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
1da177e4 | 3456 | { |
911d1aaf | 3457 | uint64_t offset, length, clientid; |
8687b63a | 3458 | __be32 *p; |
911d1aaf | 3459 | uint32_t namelen, type; |
1da177e4 LT |
3460 | |
3461 | READ_BUF(32); | |
911d1aaf TM |
3462 | READ64(offset); |
3463 | READ64(length); | |
3464 | READ32(type); | |
3465 | if (fl != NULL) { | |
3466 | fl->fl_start = (loff_t)offset; | |
3467 | fl->fl_end = fl->fl_start + (loff_t)length - 1; | |
3468 | if (length == ~(uint64_t)0) | |
3469 | fl->fl_end = OFFSET_MAX; | |
3470 | fl->fl_type = F_WRLCK; | |
3471 | if (type & 1) | |
3472 | fl->fl_type = F_RDLCK; | |
3473 | fl->fl_pid = 0; | |
3474 | } | |
3475 | READ64(clientid); | |
1da177e4 LT |
3476 | READ32(namelen); |
3477 | READ_BUF(namelen); | |
1da177e4 LT |
3478 | return -NFS4ERR_DENIED; |
3479 | } | |
3480 | ||
911d1aaf | 3481 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
1da177e4 | 3482 | { |
8687b63a | 3483 | __be32 *p; |
1da177e4 LT |
3484 | int status; |
3485 | ||
3486 | status = decode_op_hdr(xdr, OP_LOCK); | |
c1d51931 TM |
3487 | if (status == -EIO) |
3488 | goto out; | |
1da177e4 | 3489 | if (status == 0) { |
8ae20abd TM |
3490 | READ_BUF(NFS4_STATEID_SIZE); |
3491 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3492 | } else if (status == -NFS4ERR_DENIED) |
c1d51931 TM |
3493 | status = decode_lock_denied(xdr, NULL); |
3494 | if (res->open_seqid != NULL) | |
3495 | nfs_increment_open_seqid(status, res->open_seqid); | |
3496 | nfs_increment_lock_seqid(status, res->lock_seqid); | |
3497 | out: | |
1da177e4 LT |
3498 | return status; |
3499 | } | |
3500 | ||
911d1aaf | 3501 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
1da177e4 LT |
3502 | { |
3503 | int status; | |
3504 | status = decode_op_hdr(xdr, OP_LOCKT); | |
3505 | if (status == -NFS4ERR_DENIED) | |
911d1aaf | 3506 | return decode_lock_denied(xdr, res->denied); |
1da177e4 LT |
3507 | return status; |
3508 | } | |
3509 | ||
911d1aaf | 3510 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
1da177e4 | 3511 | { |
8687b63a | 3512 | __be32 *p; |
1da177e4 LT |
3513 | int status; |
3514 | ||
3515 | status = decode_op_hdr(xdr, OP_LOCKU); | |
c1d51931 TM |
3516 | if (status != -EIO) |
3517 | nfs_increment_lock_seqid(status, res->seqid); | |
1da177e4 | 3518 | if (status == 0) { |
8ae20abd TM |
3519 | READ_BUF(NFS4_STATEID_SIZE); |
3520 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3521 | } |
3522 | return status; | |
3523 | } | |
3524 | ||
3525 | static int decode_lookup(struct xdr_stream *xdr) | |
3526 | { | |
3527 | return decode_op_hdr(xdr, OP_LOOKUP); | |
3528 | } | |
3529 | ||
3530 | /* This is too sick! */ | |
3531 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) | |
3532 | { | |
05d564fe | 3533 | __be32 *p; |
1da177e4 LT |
3534 | uint32_t limit_type, nblocks, blocksize; |
3535 | ||
3536 | READ_BUF(12); | |
3537 | READ32(limit_type); | |
3538 | switch (limit_type) { | |
05d564fe AA |
3539 | case 1: |
3540 | READ64(*maxsize); | |
3541 | break; | |
3542 | case 2: | |
3543 | READ32(nblocks); | |
3544 | READ32(blocksize); | |
3545 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; | |
1da177e4 LT |
3546 | } |
3547 | return 0; | |
3548 | } | |
3549 | ||
3550 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) | |
3551 | { | |
05d564fe AA |
3552 | __be32 *p; |
3553 | uint32_t delegation_type; | |
1da177e4 LT |
3554 | |
3555 | READ_BUF(4); | |
3556 | READ32(delegation_type); | |
3557 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { | |
3558 | res->delegation_type = 0; | |
3559 | return 0; | |
3560 | } | |
8ae20abd TM |
3561 | READ_BUF(NFS4_STATEID_SIZE+4); |
3562 | COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3563 | READ32(res->do_recall); |
05d564fe | 3564 | |
1da177e4 | 3565 | switch (delegation_type) { |
05d564fe AA |
3566 | case NFS4_OPEN_DELEGATE_READ: |
3567 | res->delegation_type = FMODE_READ; | |
3568 | break; | |
3569 | case NFS4_OPEN_DELEGATE_WRITE: | |
3570 | res->delegation_type = FMODE_WRITE|FMODE_READ; | |
3571 | if (decode_space_limit(xdr, &res->maxsize) < 0) | |
1da177e4 LT |
3572 | return -EIO; |
3573 | } | |
7539bbab | 3574 | return decode_ace(xdr, NULL, res->server->nfs_client); |
1da177e4 LT |
3575 | } |
3576 | ||
3577 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) | |
3578 | { | |
05d564fe | 3579 | __be32 *p; |
aa53ed54 | 3580 | uint32_t savewords, bmlen, i; |
05d564fe | 3581 | int status; |
1da177e4 | 3582 | |
05d564fe | 3583 | status = decode_op_hdr(xdr, OP_OPEN); |
c1d51931 TM |
3584 | if (status != -EIO) |
3585 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3586 | if (status) |
3587 | return status; | |
3588 | READ_BUF(NFS4_STATEID_SIZE); | |
3589 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3590 | |
05d564fe | 3591 | decode_change_info(xdr, &res->cinfo); |
1da177e4 | 3592 | |
05d564fe AA |
3593 | READ_BUF(8); |
3594 | READ32(res->rflags); | |
3595 | READ32(bmlen); | |
3596 | if (bmlen > 10) | |
3597 | goto xdr_error; | |
1da177e4 | 3598 | |
05d564fe | 3599 | READ_BUF(bmlen << 2); |
aa53ed54 JL |
3600 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
3601 | for (i = 0; i < savewords; ++i) | |
3602 | READ32(res->attrset[i]); | |
3603 | for (; i < NFS4_BITMAP_SIZE; i++) | |
3604 | res->attrset[i] = 0; | |
3605 | ||
1da177e4 LT |
3606 | return decode_delegation(xdr, res); |
3607 | xdr_error: | |
3110ff80 | 3608 | dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); |
1da177e4 LT |
3609 | return -EIO; |
3610 | } | |
3611 | ||
3612 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) | |
3613 | { | |
05d564fe | 3614 | __be32 *p; |
1da177e4 LT |
3615 | int status; |
3616 | ||
05d564fe | 3617 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); |
c1d51931 TM |
3618 | if (status != -EIO) |
3619 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3620 | if (status) |
3621 | return status; | |
3622 | READ_BUF(NFS4_STATEID_SIZE); | |
3623 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
3624 | return 0; | |
1da177e4 LT |
3625 | } |
3626 | ||
3627 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3628 | { | |
8687b63a | 3629 | __be32 *p; |
1da177e4 LT |
3630 | int status; |
3631 | ||
3632 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); | |
c1d51931 TM |
3633 | if (status != -EIO) |
3634 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
3635 | if (status) |
3636 | return status; | |
8ae20abd TM |
3637 | READ_BUF(NFS4_STATEID_SIZE); |
3638 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3639 | return 0; |
3640 | } | |
3641 | ||
3642 | static int decode_putfh(struct xdr_stream *xdr) | |
3643 | { | |
3644 | return decode_op_hdr(xdr, OP_PUTFH); | |
3645 | } | |
3646 | ||
3647 | static int decode_putrootfh(struct xdr_stream *xdr) | |
3648 | { | |
3649 | return decode_op_hdr(xdr, OP_PUTROOTFH); | |
3650 | } | |
3651 | ||
3652 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) | |
3653 | { | |
3654 | struct kvec *iov = req->rq_rcv_buf.head; | |
8687b63a | 3655 | __be32 *p; |
1da177e4 LT |
3656 | uint32_t count, eof, recvd, hdrlen; |
3657 | int status; | |
3658 | ||
3659 | status = decode_op_hdr(xdr, OP_READ); | |
3660 | if (status) | |
3661 | return status; | |
3662 | READ_BUF(8); | |
3663 | READ32(eof); | |
3664 | READ32(count); | |
3665 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; | |
3666 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3667 | if (count > recvd) { | |
fe82a183 | 3668 | dprintk("NFS: server cheating in read reply: " |
1da177e4 LT |
3669 | "count %u > recvd %u\n", count, recvd); |
3670 | count = recvd; | |
3671 | eof = 0; | |
3672 | } | |
3673 | xdr_read_pages(xdr, count); | |
3674 | res->eof = eof; | |
3675 | res->count = count; | |
3676 | return 0; | |
3677 | } | |
3678 | ||
3679 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) | |
3680 | { | |
3681 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3682 | struct page *page = *rcvbuf->pages; | |
3683 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3684 | size_t hdrlen; |
3685 | u32 recvd, pglen = rcvbuf->page_len; | |
8687b63a | 3686 | __be32 *end, *entry, *p, *kaddr; |
7bda2cdf | 3687 | unsigned int nr = 0; |
bcecff77 | 3688 | int status; |
1da177e4 LT |
3689 | |
3690 | status = decode_op_hdr(xdr, OP_READDIR); | |
3691 | if (status) | |
3692 | return status; | |
3693 | READ_BUF(8); | |
3694 | COPYMEM(readdir->verifier.data, 8); | |
44109241 FI |
3695 | dprintk("%s: verifier = %08x:%08x\n", |
3696 | __func__, | |
eadf4598 TM |
3697 | ((u32 *)readdir->verifier.data)[0], |
3698 | ((u32 *)readdir->verifier.data)[1]); | |
3699 | ||
1da177e4 LT |
3700 | |
3701 | hdrlen = (char *) p - (char *) iov->iov_base; | |
3702 | recvd = rcvbuf->len - hdrlen; | |
3703 | if (pglen > recvd) | |
3704 | pglen = recvd; | |
3705 | xdr_read_pages(xdr, pglen); | |
3706 | ||
3707 | BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); | |
8687b63a | 3708 | kaddr = p = kmap_atomic(page, KM_USER0); |
e8896495 | 3709 | end = p + ((pglen + readdir->pgbase) >> 2); |
1da177e4 | 3710 | entry = p; |
7bda2cdf JL |
3711 | |
3712 | /* Make sure the packet actually has a value_follows and EOF entry */ | |
3713 | if ((entry + 1) > end) | |
3714 | goto short_pkt; | |
3715 | ||
3716 | for (; *p++; nr++) { | |
bcecff77 | 3717 | u32 len, attrlen, xlen; |
e8896495 | 3718 | if (end - p < 3) |
1da177e4 | 3719 | goto short_pkt; |
eadf4598 | 3720 | dprintk("cookie = %Lu, ", *((unsigned long long *)p)); |
1da177e4 LT |
3721 | p += 2; /* cookie */ |
3722 | len = ntohl(*p++); /* filename length */ | |
3723 | if (len > NFS4_MAXNAMLEN) { | |
fe82a183 CL |
3724 | dprintk("NFS: giant filename in readdir (len 0x%x)\n", |
3725 | len); | |
1da177e4 LT |
3726 | goto err_unmap; |
3727 | } | |
e8896495 DH |
3728 | xlen = XDR_QUADLEN(len); |
3729 | if (end - p < xlen + 1) | |
1da177e4 | 3730 | goto short_pkt; |
e8896495 DH |
3731 | dprintk("filename = %*s\n", len, (char *)p); |
3732 | p += xlen; | |
1da177e4 | 3733 | len = ntohl(*p++); /* bitmap length */ |
e8896495 | 3734 | if (end - p < len + 1) |
1da177e4 | 3735 | goto short_pkt; |
e8896495 | 3736 | p += len; |
1da177e4 | 3737 | attrlen = XDR_QUADLEN(ntohl(*p++)); |
e8896495 | 3738 | if (end - p < attrlen + 2) |
1da177e4 | 3739 | goto short_pkt; |
e8896495 | 3740 | p += attrlen; /* attributes */ |
1da177e4 LT |
3741 | entry = p; |
3742 | } | |
7bda2cdf JL |
3743 | /* |
3744 | * Apparently some server sends responses that are a valid size, but | |
3745 | * contain no entries, and have value_follows==0 and EOF==0. For | |
3746 | * those, just set the EOF marker. | |
3747 | */ | |
3748 | if (!nr && entry[1] == 0) { | |
3749 | dprintk("NFS: readdir reply truncated!\n"); | |
3750 | entry[1] = 1; | |
3751 | } | |
6c0195a4 | 3752 | out: |
1da177e4 LT |
3753 | kunmap_atomic(kaddr, KM_USER0); |
3754 | return 0; | |
3755 | short_pkt: | |
7bda2cdf JL |
3756 | /* |
3757 | * When we get a short packet there are 2 possibilities. We can | |
3758 | * return an error, or fix up the response to look like a valid | |
3759 | * response and return what we have so far. If there are no | |
3760 | * entries and the packet was short, then return -EIO. If there | |
3761 | * are valid entries in the response, return them and pretend that | |
3762 | * the call was successful, but incomplete. The caller can retry the | |
3763 | * readdir starting at the last cookie. | |
3764 | */ | |
3110ff80 | 3765 | dprintk("%s: short packet at entry %d\n", __func__, nr); |
1da177e4 | 3766 | entry[0] = entry[1] = 0; |
7bda2cdf JL |
3767 | if (nr) |
3768 | goto out; | |
1da177e4 LT |
3769 | err_unmap: |
3770 | kunmap_atomic(kaddr, KM_USER0); | |
3771 | return -errno_NFSERR_IO; | |
3772 | } | |
3773 | ||
3774 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) | |
3775 | { | |
3776 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3777 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3778 | size_t hdrlen; |
3779 | u32 len, recvd; | |
8687b63a | 3780 | __be32 *p; |
1da177e4 LT |
3781 | char *kaddr; |
3782 | int status; | |
3783 | ||
3784 | status = decode_op_hdr(xdr, OP_READLINK); | |
3785 | if (status) | |
3786 | return status; | |
3787 | ||
3788 | /* Convert length of symlink */ | |
3789 | READ_BUF(4); | |
3790 | READ32(len); | |
3791 | if (len >= rcvbuf->page_len || len <= 0) { | |
fe82a183 | 3792 | dprintk("nfs: server returned giant symlink!\n"); |
1da177e4 LT |
3793 | return -ENAMETOOLONG; |
3794 | } | |
3795 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; | |
3796 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3797 | if (recvd < len) { | |
fe82a183 | 3798 | dprintk("NFS: server cheating in readlink reply: " |
1da177e4 LT |
3799 | "count %u > recvd %u\n", len, recvd); |
3800 | return -EIO; | |
3801 | } | |
3802 | xdr_read_pages(xdr, len); | |
3803 | /* | |
3804 | * The XDR encode routine has set things up so that | |
3805 | * the link text will be copied directly into the | |
3806 | * buffer. We just have to do overflow-checking, | |
3807 | * and and null-terminate the text (the VFS expects | |
3808 | * null-termination). | |
3809 | */ | |
3810 | kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); | |
3811 | kaddr[len+rcvbuf->page_base] = '\0'; | |
3812 | kunmap_atomic(kaddr, KM_USER0); | |
3813 | return 0; | |
3814 | } | |
3815 | ||
3816 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3817 | { | |
3818 | int status; | |
3819 | ||
3820 | status = decode_op_hdr(xdr, OP_REMOVE); | |
3821 | if (status) | |
3822 | goto out; | |
3823 | status = decode_change_info(xdr, cinfo); | |
3824 | out: | |
3825 | return status; | |
3826 | } | |
3827 | ||
3828 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, | |
3829 | struct nfs4_change_info *new_cinfo) | |
3830 | { | |
3831 | int status; | |
3832 | ||
3833 | status = decode_op_hdr(xdr, OP_RENAME); | |
3834 | if (status) | |
3835 | goto out; | |
3836 | if ((status = decode_change_info(xdr, old_cinfo))) | |
3837 | goto out; | |
3838 | status = decode_change_info(xdr, new_cinfo); | |
3839 | out: | |
3840 | return status; | |
3841 | } | |
3842 | ||
3843 | static int decode_renew(struct xdr_stream *xdr) | |
3844 | { | |
3845 | return decode_op_hdr(xdr, OP_RENEW); | |
3846 | } | |
3847 | ||
56ae19f3 TM |
3848 | static int |
3849 | decode_restorefh(struct xdr_stream *xdr) | |
3850 | { | |
3851 | return decode_op_hdr(xdr, OP_RESTOREFH); | |
3852 | } | |
3853 | ||
029d105e BF |
3854 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
3855 | size_t *acl_len) | |
3856 | { | |
8687b63a | 3857 | __be32 *savep; |
029d105e BF |
3858 | uint32_t attrlen, |
3859 | bitmap[2] = {0}; | |
3860 | struct kvec *iov = req->rq_rcv_buf.head; | |
3861 | int status; | |
3862 | ||
3863 | *acl_len = 0; | |
3864 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3865 | goto out; | |
3866 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3867 | goto out; | |
3868 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3869 | goto out; | |
3870 | ||
3871 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) | |
3872 | return -EIO; | |
3873 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { | |
bcecff77 CL |
3874 | size_t hdrlen; |
3875 | u32 recvd; | |
029d105e BF |
3876 | |
3877 | /* We ignore &savep and don't do consistency checks on | |
3878 | * the attr length. Let userspace figure it out.... */ | |
3879 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; | |
3880 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3881 | if (attrlen > recvd) { | |
fe82a183 | 3882 | dprintk("NFS: server cheating in getattr" |
029d105e BF |
3883 | " acl reply: attrlen %u > recvd %u\n", |
3884 | attrlen, recvd); | |
3885 | return -EINVAL; | |
3886 | } | |
c04871e6 | 3887 | xdr_read_pages(xdr, attrlen); |
029d105e | 3888 | *acl_len = attrlen; |
8c233cf9 BF |
3889 | } else |
3890 | status = -EOPNOTSUPP; | |
029d105e BF |
3891 | |
3892 | out: | |
3893 | return status; | |
3894 | } | |
3895 | ||
1da177e4 LT |
3896 | static int |
3897 | decode_savefh(struct xdr_stream *xdr) | |
3898 | { | |
3899 | return decode_op_hdr(xdr, OP_SAVEFH); | |
3900 | } | |
3901 | ||
9e9ecc03 | 3902 | static int decode_setattr(struct xdr_stream *xdr) |
1da177e4 | 3903 | { |
8687b63a | 3904 | __be32 *p; |
1da177e4 LT |
3905 | uint32_t bmlen; |
3906 | int status; | |
3907 | ||
1da177e4 LT |
3908 | status = decode_op_hdr(xdr, OP_SETATTR); |
3909 | if (status) | |
3910 | return status; | |
3911 | READ_BUF(4); | |
3912 | READ32(bmlen); | |
3913 | READ_BUF(bmlen << 2); | |
3914 | return 0; | |
3915 | } | |
3916 | ||
adfa6f98 | 3917 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) |
1da177e4 | 3918 | { |
8687b63a | 3919 | __be32 *p; |
1da177e4 LT |
3920 | uint32_t opnum; |
3921 | int32_t nfserr; | |
3922 | ||
3923 | READ_BUF(8); | |
3924 | READ32(opnum); | |
3925 | if (opnum != OP_SETCLIENTID) { | |
fe82a183 | 3926 | dprintk("nfs: decode_setclientid: Server returned operation" |
6c0195a4 | 3927 | " %d\n", opnum); |
1da177e4 LT |
3928 | return -EIO; |
3929 | } | |
3930 | READ32(nfserr); | |
3931 | if (nfserr == NFS_OK) { | |
8ae20abd | 3932 | READ_BUF(8 + NFS4_VERIFIER_SIZE); |
1da177e4 | 3933 | READ64(clp->cl_clientid); |
8ae20abd | 3934 | COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
3935 | } else if (nfserr == NFSERR_CLID_INUSE) { |
3936 | uint32_t len; | |
3937 | ||
3938 | /* skip netid string */ | |
3939 | READ_BUF(4); | |
3940 | READ32(len); | |
3941 | READ_BUF(len); | |
3942 | ||
3943 | /* skip uaddr string */ | |
3944 | READ_BUF(4); | |
3945 | READ32(len); | |
3946 | READ_BUF(len); | |
3947 | return -NFSERR_CLID_INUSE; | |
3948 | } else | |
856dff3d | 3949 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
3950 | |
3951 | return 0; | |
3952 | } | |
3953 | ||
3954 | static int decode_setclientid_confirm(struct xdr_stream *xdr) | |
3955 | { | |
3956 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); | |
3957 | } | |
3958 | ||
3959 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3960 | { | |
8687b63a | 3961 | __be32 *p; |
1da177e4 LT |
3962 | int status; |
3963 | ||
3964 | status = decode_op_hdr(xdr, OP_WRITE); | |
3965 | if (status) | |
3966 | return status; | |
3967 | ||
3968 | READ_BUF(16); | |
3969 | READ32(res->count); | |
3970 | READ32(res->verf->committed); | |
3971 | COPYMEM(res->verf->verifier, 8); | |
3972 | return 0; | |
3973 | } | |
3974 | ||
3975 | static int decode_delegreturn(struct xdr_stream *xdr) | |
3976 | { | |
3977 | return decode_op_hdr(xdr, OP_DELEGRETURN); | |
3978 | } | |
3979 | ||
99fe60d0 BH |
3980 | #if defined(CONFIG_NFS_V4_1) |
3981 | static int decode_exchange_id(struct xdr_stream *xdr, | |
3982 | struct nfs41_exchange_id_res *res) | |
3983 | { | |
3984 | __be32 *p; | |
3985 | uint32_t dummy; | |
3986 | int status; | |
3987 | struct nfs_client *clp = res->client; | |
3988 | ||
3989 | status = decode_op_hdr(xdr, OP_EXCHANGE_ID); | |
3990 | if (status) | |
3991 | return status; | |
3992 | ||
3993 | READ_BUF(8); | |
3994 | READ64(clp->cl_ex_clid); | |
3995 | READ_BUF(12); | |
3996 | READ32(clp->cl_seqid); | |
3997 | READ32(clp->cl_exchange_flags); | |
3998 | ||
3999 | /* We ask for SP4_NONE */ | |
4000 | READ32(dummy); | |
4001 | if (dummy != SP4_NONE) | |
4002 | return -EIO; | |
4003 | ||
4004 | /* Throw away minor_id */ | |
4005 | READ_BUF(8); | |
4006 | ||
4007 | /* Throw away Major id */ | |
4008 | READ_BUF(4); | |
4009 | READ32(dummy); | |
4010 | READ_BUF(dummy); | |
4011 | ||
4012 | /* Throw away server_scope */ | |
4013 | READ_BUF(4); | |
4014 | READ32(dummy); | |
4015 | READ_BUF(dummy); | |
4016 | ||
4017 | /* Throw away Implementation id array */ | |
4018 | READ_BUF(4); | |
4019 | READ32(dummy); | |
4020 | READ_BUF(dummy); | |
4021 | ||
4022 | return 0; | |
4023 | } | |
4024 | #endif /* CONFIG_NFS_V4_1 */ | |
4025 | ||
9b7b9fcc AA |
4026 | static int decode_sequence(struct xdr_stream *xdr, |
4027 | struct nfs4_sequence_res *res, | |
4028 | struct rpc_rqst *rqstp) | |
4029 | { | |
4030 | #if defined(CONFIG_NFS_V4_1) | |
4031 | if (!res->sr_session) | |
4032 | return 0; | |
4033 | ||
4034 | /* stub */ | |
4035 | #endif /* CONFIG_NFS_V4_1 */ | |
4036 | ||
4037 | return 0; | |
4038 | } | |
4039 | ||
49c2559e BH |
4040 | /* |
4041 | * END OF "GENERIC" DECODE ROUTINES. | |
4042 | */ | |
4043 | ||
1da177e4 LT |
4044 | /* |
4045 | * Decode OPEN_DOWNGRADE response | |
4046 | */ | |
8687b63a | 4047 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4048 | { |
05d564fe AA |
4049 | struct xdr_stream xdr; |
4050 | struct compound_hdr hdr; | |
4051 | int status; | |
4052 | ||
4053 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4054 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4055 | if (status) |
4056 | goto out; | |
4057 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4058 | if (status) |
4059 | goto out; | |
4060 | status = decode_putfh(&xdr); | |
4061 | if (status) | |
4062 | goto out; | |
4063 | status = decode_open_downgrade(&xdr, res); | |
516a6af6 TM |
4064 | if (status != 0) |
4065 | goto out; | |
4066 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 4067 | out: |
05d564fe | 4068 | return status; |
1da177e4 LT |
4069 | } |
4070 | ||
1da177e4 LT |
4071 | /* |
4072 | * Decode ACCESS response | |
4073 | */ | |
8687b63a | 4074 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) |
1da177e4 LT |
4075 | { |
4076 | struct xdr_stream xdr; | |
4077 | struct compound_hdr hdr; | |
4078 | int status; | |
6c0195a4 | 4079 | |
1da177e4 | 4080 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4081 | status = decode_compound_hdr(&xdr, &hdr); |
4082 | if (status) | |
4083 | goto out; | |
4084 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4085 | if (status) | |
1da177e4 | 4086 | goto out; |
76b32999 TM |
4087 | status = decode_putfh(&xdr); |
4088 | if (status != 0) | |
4089 | goto out; | |
4090 | status = decode_access(&xdr, res); | |
4091 | if (status != 0) | |
4092 | goto out; | |
4093 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4094 | out: |
4095 | return status; | |
4096 | } | |
4097 | ||
4098 | /* | |
4099 | * Decode LOOKUP response | |
4100 | */ | |
8687b63a | 4101 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
4102 | { |
4103 | struct xdr_stream xdr; | |
4104 | struct compound_hdr hdr; | |
4105 | int status; | |
6c0195a4 | 4106 | |
1da177e4 | 4107 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4108 | status = decode_compound_hdr(&xdr, &hdr); |
4109 | if (status) | |
4110 | goto out; | |
4111 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4112 | if (status) | |
1da177e4 LT |
4113 | goto out; |
4114 | if ((status = decode_putfh(&xdr)) != 0) | |
4115 | goto out; | |
4116 | if ((status = decode_lookup(&xdr)) != 0) | |
4117 | goto out; | |
4118 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
4119 | goto out; | |
4120 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4121 | out: | |
4122 | return status; | |
4123 | } | |
4124 | ||
4125 | /* | |
4126 | * Decode LOOKUP_ROOT response | |
4127 | */ | |
8687b63a | 4128 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
4129 | { |
4130 | struct xdr_stream xdr; | |
4131 | struct compound_hdr hdr; | |
4132 | int status; | |
6c0195a4 | 4133 | |
1da177e4 | 4134 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4135 | status = decode_compound_hdr(&xdr, &hdr); |
4136 | if (status) | |
4137 | goto out; | |
4138 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4139 | if (status) | |
1da177e4 LT |
4140 | goto out; |
4141 | if ((status = decode_putrootfh(&xdr)) != 0) | |
4142 | goto out; | |
4143 | if ((status = decode_getfh(&xdr, res->fh)) == 0) | |
4144 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4145 | out: | |
4146 | return status; | |
4147 | } | |
4148 | ||
4149 | /* | |
4150 | * Decode REMOVE response | |
4151 | */ | |
4fdc17b2 | 4152 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) |
1da177e4 LT |
4153 | { |
4154 | struct xdr_stream xdr; | |
4155 | struct compound_hdr hdr; | |
4156 | int status; | |
6c0195a4 | 4157 | |
1da177e4 | 4158 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4159 | status = decode_compound_hdr(&xdr, &hdr); |
4160 | if (status) | |
4161 | goto out; | |
4162 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4163 | if (status) | |
1da177e4 | 4164 | goto out; |
16e42959 TM |
4165 | if ((status = decode_putfh(&xdr)) != 0) |
4166 | goto out; | |
4167 | if ((status = decode_remove(&xdr, &res->cinfo)) != 0) | |
4168 | goto out; | |
4fdc17b2 | 4169 | decode_getfattr(&xdr, &res->dir_attr, res->server); |
1da177e4 LT |
4170 | out: |
4171 | return status; | |
4172 | } | |
4173 | ||
4174 | /* | |
4175 | * Decode RENAME response | |
4176 | */ | |
8687b63a | 4177 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) |
1da177e4 LT |
4178 | { |
4179 | struct xdr_stream xdr; | |
4180 | struct compound_hdr hdr; | |
4181 | int status; | |
6c0195a4 | 4182 | |
1da177e4 | 4183 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4184 | status = decode_compound_hdr(&xdr, &hdr); |
4185 | if (status) | |
4186 | goto out; | |
4187 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4188 | if (status) | |
1da177e4 LT |
4189 | goto out; |
4190 | if ((status = decode_putfh(&xdr)) != 0) | |
4191 | goto out; | |
4192 | if ((status = decode_savefh(&xdr)) != 0) | |
4193 | goto out; | |
4194 | if ((status = decode_putfh(&xdr)) != 0) | |
4195 | goto out; | |
6caf2c82 TM |
4196 | if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) |
4197 | goto out; | |
4198 | /* Current FH is target directory */ | |
4199 | if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) | |
4200 | goto out; | |
4201 | if ((status = decode_restorefh(&xdr)) != 0) | |
4202 | goto out; | |
4203 | decode_getfattr(&xdr, res->old_fattr, res->server); | |
1da177e4 LT |
4204 | out: |
4205 | return status; | |
4206 | } | |
4207 | ||
4208 | /* | |
4209 | * Decode LINK response | |
4210 | */ | |
8687b63a | 4211 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) |
1da177e4 LT |
4212 | { |
4213 | struct xdr_stream xdr; | |
4214 | struct compound_hdr hdr; | |
4215 | int status; | |
6c0195a4 | 4216 | |
1da177e4 | 4217 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4218 | status = decode_compound_hdr(&xdr, &hdr); |
4219 | if (status) | |
4220 | goto out; | |
4221 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4222 | if (status) | |
1da177e4 LT |
4223 | goto out; |
4224 | if ((status = decode_putfh(&xdr)) != 0) | |
4225 | goto out; | |
4226 | if ((status = decode_savefh(&xdr)) != 0) | |
4227 | goto out; | |
4228 | if ((status = decode_putfh(&xdr)) != 0) | |
4229 | goto out; | |
91ba2eee TM |
4230 | if ((status = decode_link(&xdr, &res->cinfo)) != 0) |
4231 | goto out; | |
4232 | /* | |
4233 | * Note order: OP_LINK leaves the directory as the current | |
4234 | * filehandle. | |
4235 | */ | |
4236 | if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) | |
4237 | goto out; | |
4238 | if ((status = decode_restorefh(&xdr)) != 0) | |
4239 | goto out; | |
4240 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4241 | out: |
4242 | return status; | |
4243 | } | |
4244 | ||
4245 | /* | |
4246 | * Decode CREATE response | |
4247 | */ | |
8687b63a | 4248 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4249 | { |
4250 | struct xdr_stream xdr; | |
4251 | struct compound_hdr hdr; | |
4252 | int status; | |
6c0195a4 | 4253 | |
1da177e4 | 4254 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
9b7b9fcc AA |
4255 | status = decode_compound_hdr(&xdr, &hdr); |
4256 | if (status) | |
4257 | goto out; | |
4258 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4259 | if (status) | |
1da177e4 LT |
4260 | goto out; |
4261 | if ((status = decode_putfh(&xdr)) != 0) | |
4262 | goto out; | |
56ae19f3 TM |
4263 | if ((status = decode_savefh(&xdr)) != 0) |
4264 | goto out; | |
1da177e4 LT |
4265 | if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) |
4266 | goto out; | |
4267 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
4268 | goto out; | |
56ae19f3 TM |
4269 | if (decode_getfattr(&xdr, res->fattr, res->server) != 0) |
4270 | goto out; | |
4271 | if ((status = decode_restorefh(&xdr)) != 0) | |
4272 | goto out; | |
4273 | decode_getfattr(&xdr, res->dir_fattr, res->server); | |
1da177e4 LT |
4274 | out: |
4275 | return status; | |
4276 | } | |
4277 | ||
4278 | /* | |
4279 | * Decode SYMLINK response | |
4280 | */ | |
8687b63a | 4281 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4282 | { |
4283 | return nfs4_xdr_dec_create(rqstp, p, res); | |
4284 | } | |
4285 | ||
4286 | /* | |
4287 | * Decode GETATTR response | |
4288 | */ | |
8687b63a | 4289 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) |
1da177e4 LT |
4290 | { |
4291 | struct xdr_stream xdr; | |
4292 | struct compound_hdr hdr; | |
4293 | int status; | |
6c0195a4 | 4294 | |
1da177e4 LT |
4295 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
4296 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4297 | if (status) |
4298 | goto out; | |
4299 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4300 | if (status) |
4301 | goto out; | |
4302 | status = decode_putfh(&xdr); | |
4303 | if (status) | |
4304 | goto out; | |
4305 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4306 | out: | |
4307 | return status; | |
1da177e4 LT |
4308 | } |
4309 | ||
23ec6965 BF |
4310 | /* |
4311 | * Encode an SETACL request | |
4312 | */ | |
4313 | static int | |
8687b63a | 4314 | nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) |
23ec6965 | 4315 | { |
05d564fe AA |
4316 | struct xdr_stream xdr; |
4317 | struct compound_hdr hdr = { | |
66cc0429 | 4318 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe AA |
4319 | }; |
4320 | int status; | |
4321 | ||
4322 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 4323 | encode_compound_hdr(&xdr, req, &hdr); |
9b7b9fcc | 4324 | encode_sequence(&xdr, &args->seq_args, &hdr); |
cf8cdbe5 | 4325 | encode_putfh(&xdr, args->fh, &hdr); |
d017931c | 4326 | status = encode_setacl(&xdr, args, &hdr); |
d017931c | 4327 | encode_nops(&hdr); |
05d564fe | 4328 | return status; |
23ec6965 | 4329 | } |
05d564fe | 4330 | |
23ec6965 BF |
4331 | /* |
4332 | * Decode SETACL response | |
4333 | */ | |
4334 | static int | |
73c403a9 BH |
4335 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, |
4336 | struct nfs_setaclres *res) | |
23ec6965 BF |
4337 | { |
4338 | struct xdr_stream xdr; | |
4339 | struct compound_hdr hdr; | |
4340 | int status; | |
4341 | ||
4342 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4343 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4344 | if (status) |
4345 | goto out; | |
4346 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
23ec6965 BF |
4347 | if (status) |
4348 | goto out; | |
4349 | status = decode_putfh(&xdr); | |
4350 | if (status) | |
4351 | goto out; | |
9e9ecc03 | 4352 | status = decode_setattr(&xdr); |
23ec6965 BF |
4353 | out: |
4354 | return status; | |
4355 | } | |
1da177e4 | 4356 | |
029d105e BF |
4357 | /* |
4358 | * Decode GETACL response | |
4359 | */ | |
4360 | static int | |
663c79b3 BH |
4361 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, |
4362 | struct nfs_getaclres *res) | |
029d105e BF |
4363 | { |
4364 | struct xdr_stream xdr; | |
4365 | struct compound_hdr hdr; | |
4366 | int status; | |
4367 | ||
4368 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4369 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4370 | if (status) |
4371 | goto out; | |
4372 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
029d105e BF |
4373 | if (status) |
4374 | goto out; | |
4375 | status = decode_putfh(&xdr); | |
4376 | if (status) | |
4377 | goto out; | |
663c79b3 | 4378 | status = decode_getacl(&xdr, rqstp, &res->acl_len); |
029d105e BF |
4379 | |
4380 | out: | |
4381 | return status; | |
4382 | } | |
4383 | ||
1da177e4 LT |
4384 | /* |
4385 | * Decode CLOSE response | |
4386 | */ | |
8687b63a | 4387 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4388 | { |
05d564fe AA |
4389 | struct xdr_stream xdr; |
4390 | struct compound_hdr hdr; | |
4391 | int status; | |
4392 | ||
4393 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4394 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4395 | if (status) |
4396 | goto out; | |
4397 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4398 | if (status) |
4399 | goto out; | |
4400 | status = decode_putfh(&xdr); | |
4401 | if (status) | |
4402 | goto out; | |
4403 | status = decode_close(&xdr, res); | |
516a6af6 TM |
4404 | if (status != 0) |
4405 | goto out; | |
4406 | /* | |
4407 | * Note: Server may do delete on close for this file | |
4408 | * in which case the getattr call will fail with | |
4409 | * an ESTALE error. Shouldn't be a problem, | |
4410 | * though, since fattr->valid will remain unset. | |
4411 | */ | |
4412 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 4413 | out: |
05d564fe | 4414 | return status; |
1da177e4 LT |
4415 | } |
4416 | ||
4417 | /* | |
4418 | * Decode OPEN response | |
4419 | */ | |
8687b63a | 4420 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4421 | { |
05d564fe AA |
4422 | struct xdr_stream xdr; |
4423 | struct compound_hdr hdr; | |
4424 | int status; | |
4425 | ||
4426 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4427 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4428 | if (status) |
4429 | goto out; | |
4430 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4431 | if (status) |
4432 | goto out; | |
4433 | status = decode_putfh(&xdr); | |
4434 | if (status) | |
4435 | goto out; | |
4436 | status = decode_savefh(&xdr); | |
4437 | if (status) | |
4438 | goto out; | |
4439 | status = decode_open(&xdr, res); | |
56ae19f3 TM |
4440 | if (status) |
4441 | goto out; | |
9936781d | 4442 | if (decode_getfh(&xdr, &res->fh) != 0) |
1da177e4 | 4443 | goto out; |
56ae19f3 TM |
4444 | if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) |
4445 | goto out; | |
365c8f58 | 4446 | if (decode_restorefh(&xdr) != 0) |
56ae19f3 TM |
4447 | goto out; |
4448 | decode_getfattr(&xdr, res->dir_attr, res->server); | |
1da177e4 | 4449 | out: |
05d564fe | 4450 | return status; |
1da177e4 LT |
4451 | } |
4452 | ||
4453 | /* | |
4454 | * Decode OPEN_CONFIRM response | |
4455 | */ | |
8687b63a | 4456 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) |
1da177e4 | 4457 | { |
05d564fe AA |
4458 | struct xdr_stream xdr; |
4459 | struct compound_hdr hdr; | |
4460 | int status; | |
4461 | ||
4462 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4463 | status = decode_compound_hdr(&xdr, &hdr); | |
4464 | if (status) | |
4465 | goto out; | |
4466 | status = decode_putfh(&xdr); | |
4467 | if (status) | |
4468 | goto out; | |
4469 | status = decode_open_confirm(&xdr, res); | |
1da177e4 | 4470 | out: |
05d564fe | 4471 | return status; |
1da177e4 LT |
4472 | } |
4473 | ||
4474 | /* | |
4475 | * Decode OPEN response | |
4476 | */ | |
8687b63a | 4477 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4478 | { |
05d564fe AA |
4479 | struct xdr_stream xdr; |
4480 | struct compound_hdr hdr; | |
4481 | int status; | |
4482 | ||
4483 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4484 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4485 | if (status) |
4486 | goto out; | |
4487 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4488 | if (status) |
4489 | goto out; | |
4490 | status = decode_putfh(&xdr); | |
4491 | if (status) | |
4492 | goto out; | |
4493 | status = decode_open(&xdr, res); | |
4494 | if (status) | |
4495 | goto out; | |
864472e9 | 4496 | decode_getfattr(&xdr, res->f_attr, res->server); |
1da177e4 | 4497 | out: |
05d564fe | 4498 | return status; |
1da177e4 LT |
4499 | } |
4500 | ||
4501 | /* | |
4502 | * Decode SETATTR response | |
4503 | */ | |
8687b63a | 4504 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) |
1da177e4 | 4505 | { |
05d564fe AA |
4506 | struct xdr_stream xdr; |
4507 | struct compound_hdr hdr; | |
4508 | int status; | |
4509 | ||
4510 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4511 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4512 | if (status) |
4513 | goto out; | |
4514 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
05d564fe AA |
4515 | if (status) |
4516 | goto out; | |
4517 | status = decode_putfh(&xdr); | |
4518 | if (status) | |
4519 | goto out; | |
9e9ecc03 | 4520 | status = decode_setattr(&xdr); |
05d564fe AA |
4521 | if (status) |
4522 | goto out; | |
78f945f8 | 4523 | decode_getfattr(&xdr, res->fattr, res->server); |
1da177e4 | 4524 | out: |
05d564fe | 4525 | return status; |
1da177e4 LT |
4526 | } |
4527 | ||
4528 | /* | |
4529 | * Decode LOCK response | |
4530 | */ | |
8687b63a | 4531 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) |
1da177e4 LT |
4532 | { |
4533 | struct xdr_stream xdr; | |
4534 | struct compound_hdr hdr; | |
4535 | int status; | |
4536 | ||
4537 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4538 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4539 | if (status) |
4540 | goto out; | |
4541 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4542 | if (status) |
4543 | goto out; | |
4544 | status = decode_putfh(&xdr); | |
4545 | if (status) | |
4546 | goto out; | |
4547 | status = decode_lock(&xdr, res); | |
4548 | out: | |
4549 | return status; | |
4550 | } | |
4551 | ||
4552 | /* | |
4553 | * Decode LOCKT response | |
4554 | */ | |
8687b63a | 4555 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) |
1da177e4 LT |
4556 | { |
4557 | struct xdr_stream xdr; | |
4558 | struct compound_hdr hdr; | |
4559 | int status; | |
4560 | ||
4561 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4562 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4563 | if (status) |
4564 | goto out; | |
4565 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4566 | if (status) |
4567 | goto out; | |
4568 | status = decode_putfh(&xdr); | |
4569 | if (status) | |
4570 | goto out; | |
4571 | status = decode_lockt(&xdr, res); | |
4572 | out: | |
4573 | return status; | |
4574 | } | |
4575 | ||
4576 | /* | |
4577 | * Decode LOCKU response | |
4578 | */ | |
8687b63a | 4579 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) |
1da177e4 LT |
4580 | { |
4581 | struct xdr_stream xdr; | |
4582 | struct compound_hdr hdr; | |
4583 | int status; | |
4584 | ||
4585 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4586 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4587 | if (status) |
4588 | goto out; | |
4589 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4590 | if (status) |
4591 | goto out; | |
4592 | status = decode_putfh(&xdr); | |
4593 | if (status) | |
4594 | goto out; | |
4595 | status = decode_locku(&xdr, res); | |
4596 | out: | |
4597 | return status; | |
4598 | } | |
4599 | ||
4600 | /* | |
4601 | * Decode READLINK response | |
4602 | */ | |
f50c7000 BH |
4603 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, |
4604 | struct nfs4_readlink_res *res) | |
1da177e4 LT |
4605 | { |
4606 | struct xdr_stream xdr; | |
4607 | struct compound_hdr hdr; | |
4608 | int status; | |
4609 | ||
4610 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4611 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4612 | if (status) |
4613 | goto out; | |
4614 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4615 | if (status) |
4616 | goto out; | |
4617 | status = decode_putfh(&xdr); | |
4618 | if (status) | |
4619 | goto out; | |
4620 | status = decode_readlink(&xdr, rqstp); | |
4621 | out: | |
4622 | return status; | |
4623 | } | |
4624 | ||
4625 | /* | |
4626 | * Decode READDIR response | |
4627 | */ | |
8687b63a | 4628 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) |
1da177e4 LT |
4629 | { |
4630 | struct xdr_stream xdr; | |
4631 | struct compound_hdr hdr; | |
4632 | int status; | |
4633 | ||
4634 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4635 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4636 | if (status) |
4637 | goto out; | |
4638 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4639 | if (status) |
4640 | goto out; | |
4641 | status = decode_putfh(&xdr); | |
4642 | if (status) | |
4643 | goto out; | |
4644 | status = decode_readdir(&xdr, rqstp, res); | |
4645 | out: | |
4646 | return status; | |
4647 | } | |
4648 | ||
4649 | /* | |
4650 | * Decode Read response | |
4651 | */ | |
8687b63a | 4652 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) |
1da177e4 LT |
4653 | { |
4654 | struct xdr_stream xdr; | |
4655 | struct compound_hdr hdr; | |
4656 | int status; | |
4657 | ||
4658 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4659 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4660 | if (status) |
4661 | goto out; | |
4662 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4663 | if (status) |
4664 | goto out; | |
4665 | status = decode_putfh(&xdr); | |
4666 | if (status) | |
4667 | goto out; | |
4668 | status = decode_read(&xdr, rqstp, res); | |
4669 | if (!status) | |
4670 | status = res->count; | |
4671 | out: | |
4672 | return status; | |
4673 | } | |
4674 | ||
4675 | /* | |
4676 | * Decode WRITE response | |
4677 | */ | |
8687b63a | 4678 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4679 | { |
4680 | struct xdr_stream xdr; | |
4681 | struct compound_hdr hdr; | |
4682 | int status; | |
4683 | ||
4684 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4685 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4686 | if (status) |
4687 | goto out; | |
4688 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4689 | if (status) |
4690 | goto out; | |
4691 | status = decode_putfh(&xdr); | |
4692 | if (status) | |
4693 | goto out; | |
4694 | status = decode_write(&xdr, res); | |
4f9838c7 TM |
4695 | if (status) |
4696 | goto out; | |
4697 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4698 | if (!status) |
4699 | status = res->count; | |
4700 | out: | |
4701 | return status; | |
4702 | } | |
4703 | ||
4704 | /* | |
4705 | * Decode COMMIT response | |
4706 | */ | |
8687b63a | 4707 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4708 | { |
4709 | struct xdr_stream xdr; | |
4710 | struct compound_hdr hdr; | |
4711 | int status; | |
4712 | ||
4713 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4714 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4715 | if (status) |
4716 | goto out; | |
4717 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
1da177e4 LT |
4718 | if (status) |
4719 | goto out; | |
4720 | status = decode_putfh(&xdr); | |
4721 | if (status) | |
4722 | goto out; | |
4723 | status = decode_commit(&xdr, res); | |
4f9838c7 TM |
4724 | if (status) |
4725 | goto out; | |
4726 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4727 | out: |
4728 | return status; | |
4729 | } | |
4730 | ||
4731 | /* | |
4732 | * FSINFO request | |
4733 | */ | |
3dda5e43 BH |
4734 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, |
4735 | struct nfs4_fsinfo_res *res) | |
1da177e4 LT |
4736 | { |
4737 | struct xdr_stream xdr; | |
4738 | struct compound_hdr hdr; | |
4739 | int status; | |
4740 | ||
4741 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4742 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4743 | if (!status) |
4744 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
4745 | if (!status) |
4746 | status = decode_putfh(&xdr); | |
4747 | if (!status) | |
3dda5e43 | 4748 | status = decode_fsinfo(&xdr, res->fsinfo); |
1da177e4 LT |
4749 | return status; |
4750 | } | |
4751 | ||
4752 | /* | |
4753 | * PATHCONF request | |
4754 | */ | |
d45b2989 BH |
4755 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, |
4756 | struct nfs4_pathconf_res *res) | |
1da177e4 LT |
4757 | { |
4758 | struct xdr_stream xdr; | |
4759 | struct compound_hdr hdr; | |
4760 | int status; | |
4761 | ||
4762 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4763 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4764 | if (!status) |
4765 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
4766 | if (!status) |
4767 | status = decode_putfh(&xdr); | |
4768 | if (!status) | |
d45b2989 | 4769 | status = decode_pathconf(&xdr, res->pathconf); |
1da177e4 LT |
4770 | return status; |
4771 | } | |
4772 | ||
4773 | /* | |
4774 | * STATFS request | |
4775 | */ | |
24ad148a BH |
4776 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, |
4777 | struct nfs4_statfs_res *res) | |
1da177e4 LT |
4778 | { |
4779 | struct xdr_stream xdr; | |
4780 | struct compound_hdr hdr; | |
4781 | int status; | |
4782 | ||
4783 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4784 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4785 | if (!status) |
4786 | status = decode_sequence(&xdr, &res->seq_res, req); | |
1da177e4 LT |
4787 | if (!status) |
4788 | status = decode_putfh(&xdr); | |
4789 | if (!status) | |
24ad148a | 4790 | status = decode_statfs(&xdr, res->fsstat); |
1da177e4 LT |
4791 | return status; |
4792 | } | |
4793 | ||
4794 | /* | |
4795 | * GETATTR_BITMAP request | |
4796 | */ | |
8687b63a | 4797 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) |
1da177e4 LT |
4798 | { |
4799 | struct xdr_stream xdr; | |
4800 | struct compound_hdr hdr; | |
4801 | int status; | |
4802 | ||
4803 | xdr_init_decode(&xdr, &req->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, req); | |
4808 | if (status) | |
1da177e4 LT |
4809 | goto out; |
4810 | if ((status = decode_putfh(&xdr)) != 0) | |
4811 | goto out; | |
4812 | status = decode_server_caps(&xdr, res); | |
4813 | out: | |
4814 | return status; | |
4815 | } | |
4816 | ||
4817 | /* | |
4818 | * Decode RENEW response | |
4819 | */ | |
8687b63a | 4820 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) |
1da177e4 LT |
4821 | { |
4822 | struct xdr_stream xdr; | |
4823 | struct compound_hdr hdr; | |
4824 | int status; | |
4825 | ||
4826 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4827 | status = decode_compound_hdr(&xdr, &hdr); | |
4828 | if (!status) | |
4829 | status = decode_renew(&xdr); | |
4830 | return status; | |
4831 | } | |
4832 | ||
4833 | /* | |
4834 | * a SETCLIENTID request | |
4835 | */ | |
8687b63a | 4836 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, |
adfa6f98 | 4837 | struct nfs_client *clp) |
1da177e4 LT |
4838 | { |
4839 | struct xdr_stream xdr; | |
4840 | struct compound_hdr hdr; | |
4841 | int status; | |
4842 | ||
4843 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4844 | status = decode_compound_hdr(&xdr, &hdr); | |
4845 | if (!status) | |
4846 | status = decode_setclientid(&xdr, clp); | |
1da177e4 LT |
4847 | return status; |
4848 | } | |
4849 | ||
4850 | /* | |
4851 | * a SETCLIENTID_CONFIRM request | |
4852 | */ | |
8687b63a | 4853 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
4854 | { |
4855 | struct xdr_stream xdr; | |
4856 | struct compound_hdr hdr; | |
4857 | int status; | |
4858 | ||
4859 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4860 | status = decode_compound_hdr(&xdr, &hdr); | |
4861 | if (!status) | |
4862 | status = decode_setclientid_confirm(&xdr); | |
4863 | if (!status) | |
4864 | status = decode_putrootfh(&xdr); | |
4865 | if (!status) | |
4866 | status = decode_fsinfo(&xdr, fsinfo); | |
1da177e4 LT |
4867 | return status; |
4868 | } | |
4869 | ||
4870 | /* | |
4871 | * DELEGRETURN request | |
4872 | */ | |
8687b63a | 4873 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) |
1da177e4 LT |
4874 | { |
4875 | struct xdr_stream xdr; | |
4876 | struct compound_hdr hdr; | |
4877 | int status; | |
4878 | ||
4879 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4880 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4881 | if (status) |
4882 | goto out; | |
4883 | status = decode_sequence(&xdr, &res->seq_res, rqstp); | |
4884 | if (status) | |
fa178f29 TM |
4885 | goto out; |
4886 | status = decode_putfh(&xdr); | |
4887 | if (status != 0) | |
4888 | goto out; | |
4889 | status = decode_delegreturn(&xdr); | |
4890 | decode_getfattr(&xdr, res->fattr, res->server); | |
4891 | out: | |
1da177e4 LT |
4892 | return status; |
4893 | } | |
4894 | ||
683b57b4 TM |
4895 | /* |
4896 | * FS_LOCATIONS request | |
4897 | */ | |
22958463 BH |
4898 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, |
4899 | struct nfs4_fs_locations_res *res) | |
683b57b4 TM |
4900 | { |
4901 | struct xdr_stream xdr; | |
4902 | struct compound_hdr hdr; | |
4903 | int status; | |
4904 | ||
4905 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4906 | status = decode_compound_hdr(&xdr, &hdr); | |
9b7b9fcc AA |
4907 | if (status) |
4908 | goto out; | |
4909 | status = decode_sequence(&xdr, &res->seq_res, req); | |
4910 | if (status) | |
683b57b4 TM |
4911 | goto out; |
4912 | if ((status = decode_putfh(&xdr)) != 0) | |
4913 | goto out; | |
4914 | if ((status = decode_lookup(&xdr)) != 0) | |
4915 | goto out; | |
4916 | xdr_enter_page(&xdr, PAGE_SIZE); | |
22958463 BH |
4917 | status = decode_getfattr(&xdr, &res->fs_locations->fattr, |
4918 | res->fs_locations->server); | |
683b57b4 TM |
4919 | out: |
4920 | return status; | |
4921 | } | |
4922 | ||
99fe60d0 BH |
4923 | #if defined(CONFIG_NFS_V4_1) |
4924 | /* | |
4925 | * EXCHANGE_ID request | |
4926 | */ | |
4927 | static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, | |
4928 | void *res) | |
4929 | { | |
4930 | struct xdr_stream xdr; | |
4931 | struct compound_hdr hdr; | |
4932 | int status; | |
4933 | ||
4934 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4935 | status = decode_compound_hdr(&xdr, &hdr); | |
4936 | if (!status) | |
4937 | status = decode_exchange_id(&xdr, res); | |
4938 | return status; | |
4939 | } | |
2050f0cc AA |
4940 | |
4941 | /* | |
4942 | * a GET_LEASE_TIME request | |
4943 | */ | |
4944 | static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, | |
4945 | struct nfs4_get_lease_time_res *res) | |
4946 | { | |
4947 | struct xdr_stream xdr; | |
4948 | struct compound_hdr hdr; | |
4949 | int status; | |
4950 | ||
4951 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4952 | status = decode_compound_hdr(&xdr, &hdr); | |
4953 | if (!status) | |
4954 | status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); | |
4955 | if (!status) | |
4956 | status = decode_putrootfh(&xdr); | |
4957 | if (!status) | |
4958 | status = decode_fsinfo(&xdr, res->lr_fsinfo); | |
4959 | return status; | |
4960 | } | |
99fe60d0 BH |
4961 | #endif /* CONFIG_NFS_V4_1 */ |
4962 | ||
0dbb4c67 | 4963 | __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) |
1da177e4 LT |
4964 | { |
4965 | uint32_t bitmap[2] = {0}; | |
4966 | uint32_t len; | |
4967 | ||
4968 | if (!*p++) { | |
4969 | if (!*p) | |
4970 | return ERR_PTR(-EAGAIN); | |
4971 | entry->eof = 1; | |
4972 | return ERR_PTR(-EBADCOOKIE); | |
4973 | } | |
4974 | ||
4975 | entry->prev_cookie = entry->cookie; | |
4976 | p = xdr_decode_hyper(p, &entry->cookie); | |
4977 | entry->len = ntohl(*p++); | |
4978 | entry->name = (const char *) p; | |
4979 | p += XDR_QUADLEN(entry->len); | |
4980 | ||
4981 | /* | |
4982 | * In case the server doesn't return an inode number, | |
4983 | * we fake one here. (We don't use inode number 0, | |
4984 | * since glibc seems to choke on it...) | |
4985 | */ | |
4986 | entry->ino = 1; | |
4987 | ||
4988 | len = ntohl(*p++); /* bitmap length */ | |
4989 | if (len-- > 0) { | |
4990 | bitmap[0] = ntohl(*p++); | |
4991 | if (len-- > 0) { | |
4992 | bitmap[1] = ntohl(*p++); | |
4993 | p += len; | |
4994 | } | |
4995 | } | |
4996 | len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ | |
4997 | if (len > 0) { | |
97d312d0 MN |
4998 | if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { |
4999 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; | |
5000 | /* Ignore the return value of rdattr_error for now */ | |
5001 | p++; | |
5002 | len--; | |
5003 | } | |
1da177e4 LT |
5004 | if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) |
5005 | xdr_decode_hyper(p, &entry->ino); | |
5006 | else if (bitmap[0] == FATTR4_WORD0_FILEID) | |
5007 | xdr_decode_hyper(p, &entry->ino); | |
5008 | p += len; | |
5009 | } | |
5010 | ||
5011 | entry->eof = !p[0] && p[1]; | |
5012 | return p; | |
5013 | } | |
5014 | ||
5015 | /* | |
5016 | * We need to translate between nfs status return values and | |
5017 | * the local errno values which may not be the same. | |
5018 | */ | |
5019 | static struct { | |
5020 | int stat; | |
5021 | int errno; | |
5022 | } nfs_errtbl[] = { | |
5023 | { NFS4_OK, 0 }, | |
856dff3d BH |
5024 | { NFS4ERR_PERM, -EPERM }, |
5025 | { NFS4ERR_NOENT, -ENOENT }, | |
5026 | { NFS4ERR_IO, -errno_NFSERR_IO}, | |
5027 | { NFS4ERR_NXIO, -ENXIO }, | |
5028 | { NFS4ERR_ACCESS, -EACCES }, | |
5029 | { NFS4ERR_EXIST, -EEXIST }, | |
5030 | { NFS4ERR_XDEV, -EXDEV }, | |
5031 | { NFS4ERR_NOTDIR, -ENOTDIR }, | |
5032 | { NFS4ERR_ISDIR, -EISDIR }, | |
5033 | { NFS4ERR_INVAL, -EINVAL }, | |
5034 | { NFS4ERR_FBIG, -EFBIG }, | |
5035 | { NFS4ERR_NOSPC, -ENOSPC }, | |
5036 | { NFS4ERR_ROFS, -EROFS }, | |
5037 | { NFS4ERR_MLINK, -EMLINK }, | |
5038 | { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, | |
5039 | { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, | |
5040 | { NFS4ERR_DQUOT, -EDQUOT }, | |
5041 | { NFS4ERR_STALE, -ESTALE }, | |
5042 | { NFS4ERR_BADHANDLE, -EBADHANDLE }, | |
5043 | { NFS4ERR_BADOWNER, -EINVAL }, | |
5044 | { NFS4ERR_BADNAME, -EINVAL }, | |
5045 | { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, | |
5046 | { NFS4ERR_NOTSUPP, -ENOTSUPP }, | |
5047 | { NFS4ERR_TOOSMALL, -ETOOSMALL }, | |
5048 | { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, | |
5049 | { NFS4ERR_BADTYPE, -EBADTYPE }, | |
5050 | { NFS4ERR_LOCKED, -EAGAIN }, | |
5051 | { NFS4ERR_RESOURCE, -EREMOTEIO }, | |
5052 | { NFS4ERR_SYMLINK, -ELOOP }, | |
5053 | { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, | |
5054 | { NFS4ERR_DEADLOCK, -EDEADLK }, | |
5055 | { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs | |
1da177e4 LT |
5056 | * to be handled by a |
5057 | * middle-layer. | |
5058 | */ | |
856dff3d | 5059 | { -1, -EIO } |
1da177e4 LT |
5060 | }; |
5061 | ||
5062 | /* | |
5063 | * Convert an NFS error code to a local one. | |
5064 | * This one is used jointly by NFSv2 and NFSv3. | |
5065 | */ | |
5066 | static int | |
0a8ea437 | 5067 | nfs4_stat_to_errno(int stat) |
1da177e4 LT |
5068 | { |
5069 | int i; | |
5070 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { | |
5071 | if (nfs_errtbl[i].stat == stat) | |
5072 | return nfs_errtbl[i].errno; | |
5073 | } | |
5074 | if (stat <= 10000 || stat > 10100) { | |
5075 | /* The server is looney tunes. */ | |
856dff3d | 5076 | return -ESERVERFAULT; |
1da177e4 LT |
5077 | } |
5078 | /* If we cannot translate the error, the recovery routines should | |
5079 | * handle it. | |
5080 | * Note: remaining NFSv4 error codes have values > 10000, so should | |
5081 | * not conflict with native Linux error codes. | |
5082 | */ | |
856dff3d | 5083 | return -stat; |
1da177e4 LT |
5084 | } |
5085 | ||
1da177e4 LT |
5086 | #define PROC(proc, argtype, restype) \ |
5087 | [NFSPROC4_CLNT_##proc] = { \ | |
5088 | .p_proc = NFSPROC4_COMPOUND, \ | |
5089 | .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ | |
5090 | .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ | |
2bea90d4 CL |
5091 | .p_arglen = NFS4_##argtype##_sz, \ |
5092 | .p_replen = NFS4_##restype##_sz, \ | |
cc0175c1 CL |
5093 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
5094 | .p_name = #proc, \ | |
05d564fe | 5095 | } |
1da177e4 LT |
5096 | |
5097 | struct rpc_procinfo nfs4_procedures[] = { | |
5098 | PROC(READ, enc_read, dec_read), | |
5099 | PROC(WRITE, enc_write, dec_write), | |
5100 | PROC(COMMIT, enc_commit, dec_commit), | |
5101 | PROC(OPEN, enc_open, dec_open), | |
5102 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), | |
5103 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), | |
5104 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), | |
5105 | PROC(CLOSE, enc_close, dec_close), | |
5106 | PROC(SETATTR, enc_setattr, dec_setattr), | |
5107 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), | |
5108 | PROC(RENEW, enc_renew, dec_renew), | |
5109 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), | |
5110 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), | |
5111 | PROC(LOCK, enc_lock, dec_lock), | |
5112 | PROC(LOCKT, enc_lockt, dec_lockt), | |
5113 | PROC(LOCKU, enc_locku, dec_locku), | |
5114 | PROC(ACCESS, enc_access, dec_access), | |
5115 | PROC(GETATTR, enc_getattr, dec_getattr), | |
5116 | PROC(LOOKUP, enc_lookup, dec_lookup), | |
5117 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), | |
5118 | PROC(REMOVE, enc_remove, dec_remove), | |
5119 | PROC(RENAME, enc_rename, dec_rename), | |
5120 | PROC(LINK, enc_link, dec_link), | |
5121 | PROC(SYMLINK, enc_symlink, dec_symlink), | |
5122 | PROC(CREATE, enc_create, dec_create), | |
5123 | PROC(PATHCONF, enc_pathconf, dec_pathconf), | |
5124 | PROC(STATFS, enc_statfs, dec_statfs), | |
5125 | PROC(READLINK, enc_readlink, dec_readlink), | |
5126 | PROC(READDIR, enc_readdir, dec_readdir), | |
5127 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), | |
5128 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), | |
029d105e | 5129 | PROC(GETACL, enc_getacl, dec_getacl), |
23ec6965 | 5130 | PROC(SETACL, enc_setacl, dec_setacl), |
683b57b4 | 5131 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), |
99fe60d0 BH |
5132 | #if defined(CONFIG_NFS_V4_1) |
5133 | PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), | |
2050f0cc | 5134 | PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), |
99fe60d0 | 5135 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 LT |
5136 | }; |
5137 | ||
5138 | struct rpc_version nfs_version4 = { | |
5139 | .number = 4, | |
e8c96f8c | 5140 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
1da177e4 LT |
5141 | .procs = nfs4_procedures |
5142 | }; | |
5143 | ||
5144 | /* | |
5145 | * Local variables: | |
5146 | * c-basic-offset: 8 | |
5147 | * End: | |
5148 | */ |