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1da177e4 LT |
1 | /* |
2 | * fs/nfs/nfs4xdr.c | |
3 | * | |
4 | * Client-side XDR for NFSv4. | |
5 | * | |
6 | * Copyright (c) 2002 The Regents of the University of Michigan. | |
7 | * All rights reserved. | |
8 | * | |
9 | * Kendrick Smith <kmsmith@umich.edu> | |
10 | * Andy Adamson <andros@umich.edu> | |
6c0195a4 | 11 | * |
1da177e4 LT |
12 | * Redistribution and use in source and binary forms, with or without |
13 | * modification, are permitted provided that the following conditions | |
14 | * are met: | |
15 | * | |
16 | * 1. Redistributions of source code must retain the above copyright | |
17 | * notice, this list of conditions and the following disclaimer. | |
18 | * 2. Redistributions in binary form must reproduce the above copyright | |
19 | * notice, this list of conditions and the following disclaimer in the | |
20 | * documentation and/or other materials provided with the distribution. | |
21 | * 3. Neither the name of the University nor the names of its | |
22 | * contributors may be used to endorse or promote products derived | |
23 | * from this software without specific prior written permission. | |
24 | * | |
25 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
26 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
27 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
28 | * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
29 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
32 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
33 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
34 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
35 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
36 | */ | |
37 | ||
38 | #include <linux/param.h> | |
39 | #include <linux/time.h> | |
40 | #include <linux/mm.h> | |
1da177e4 LT |
41 | #include <linux/errno.h> |
42 | #include <linux/string.h> | |
43 | #include <linux/in.h> | |
44 | #include <linux/pagemap.h> | |
45 | #include <linux/proc_fs.h> | |
46 | #include <linux/kdev_t.h> | |
db8ac8ba WAA |
47 | #include <linux/module.h> |
48 | #include <linux/utsname.h> | |
1da177e4 | 49 | #include <linux/sunrpc/clnt.h> |
2449ea2e | 50 | #include <linux/sunrpc/msg_prot.h> |
5a5ea0d4 | 51 | #include <linux/sunrpc/gss_api.h> |
1da177e4 LT |
52 | #include <linux/nfs.h> |
53 | #include <linux/nfs4.h> | |
54 | #include <linux/nfs_fs.h> | |
55 | #include <linux/nfs_idmap.h> | |
4ce79717 | 56 | #include "nfs4_fs.h" |
4882ef72 | 57 | #include "internal.h" |
b1f69b75 | 58 | #include "pnfs.h" |
1da177e4 LT |
59 | |
60 | #define NFSDBG_FACILITY NFSDBG_XDR | |
61 | ||
62 | /* Mapping from NFS error code to "errno" error code. */ | |
63 | #define errno_NFSERR_IO EIO | |
64 | ||
0a8ea437 | 65 | static int nfs4_stat_to_errno(int); |
1da177e4 LT |
66 | |
67 | /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ | |
68 | #ifdef DEBUG | |
69 | #define NFS4_MAXTAGLEN 20 | |
70 | #else | |
71 | #define NFS4_MAXTAGLEN 0 | |
72 | #endif | |
73 | ||
6c0195a4 | 74 | /* lock,open owner id: |
9f958ab8 | 75 | * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) |
1da177e4 | 76 | */ |
d035c36c TM |
77 | #define open_owner_id_maxsz (1 + 1 + 4) |
78 | #define lock_owner_id_maxsz (1 + 1 + 4) | |
9104a55d | 79 | #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
1da177e4 LT |
80 | #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) |
81 | #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) | |
82 | #define op_encode_hdr_maxsz (1) | |
83 | #define op_decode_hdr_maxsz (2) | |
9104a55d TM |
84 | #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) |
85 | #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
86 | #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
87 | #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1da177e4 LT |
88 | #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ |
89 | (NFS4_FHSIZE >> 2)) | |
90 | #define decode_putfh_maxsz (op_decode_hdr_maxsz) | |
91 | #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) | |
92 | #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) | |
93 | #define encode_getfh_maxsz (op_encode_hdr_maxsz) | |
94 | #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ | |
95 | ((3+NFS4_FHSIZE) >> 2)) | |
e5012d1f | 96 | #define nfs4_fattr_bitmap_maxsz 4 |
96928206 | 97 | #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) |
1da177e4 LT |
98 | #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) |
99 | #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) | |
bd625ba8 TM |
100 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
101 | #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
96928206 BF |
102 | /* This is based on getfattr, which uses the most attributes: */ |
103 | #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ | |
bd625ba8 | 104 | 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) |
96928206 BF |
105 | #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ |
106 | nfs4_fattr_value_maxsz) | |
107 | #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) | |
9104a55d TM |
108 | #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ |
109 | 1 + 2 + 1 + \ | |
110 | nfs4_owner_maxsz + \ | |
111 | nfs4_group_maxsz + \ | |
112 | 4 + 4) | |
1da177e4 LT |
113 | #define encode_savefh_maxsz (op_encode_hdr_maxsz) |
114 | #define decode_savefh_maxsz (op_decode_hdr_maxsz) | |
56ae19f3 TM |
115 | #define encode_restorefh_maxsz (op_encode_hdr_maxsz) |
116 | #define decode_restorefh_maxsz (op_decode_hdr_maxsz) | |
2f42b5d0 | 117 | #define encode_fsinfo_maxsz (encode_getattr_maxsz) |
dae100c2 FI |
118 | /* The 5 accounts for the PNFS attributes, and assumes that at most three |
119 | * layout types will be returned. | |
120 | */ | |
121 | #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \ | |
122 | nfs4_fattr_bitmap_maxsz + 4 + 8 + 5) | |
1da177e4 LT |
123 | #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) |
124 | #define decode_renew_maxsz (op_decode_hdr_maxsz) | |
125 | #define encode_setclientid_maxsz \ | |
126 | (op_encode_hdr_maxsz + \ | |
cc38bac3 CL |
127 | XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ |
128 | XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ | |
129 | 1 /* sc_prog */ + \ | |
130 | XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ | |
131 | XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ | |
132 | 1) /* sc_cb_ident */ | |
1da177e4 LT |
133 | #define decode_setclientid_maxsz \ |
134 | (op_decode_hdr_maxsz + \ | |
135 | 2 + \ | |
136 | 1024) /* large value for CLID_INUSE */ | |
137 | #define encode_setclientid_confirm_maxsz \ | |
138 | (op_encode_hdr_maxsz + \ | |
139 | 3 + (NFS4_VERIFIER_SIZE >> 2)) | |
140 | #define decode_setclientid_confirm_maxsz \ | |
141 | (op_decode_hdr_maxsz) | |
e6889620 TM |
142 | #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) |
143 | #define decode_lookup_maxsz (op_decode_hdr_maxsz) | |
2cebf828 TM |
144 | #define encode_share_access_maxsz \ |
145 | (2) | |
4882ef72 | 146 | #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) |
2cebf828 TM |
147 | #define encode_opentype_maxsz (1 + encode_createmode_maxsz) |
148 | #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) | |
149 | #define encode_open_maxsz (op_encode_hdr_maxsz + \ | |
150 | 2 + encode_share_access_maxsz + 2 + \ | |
151 | open_owner_id_maxsz + \ | |
152 | encode_opentype_maxsz + \ | |
153 | encode_claim_null_maxsz) | |
154 | #define decode_ace_maxsz (3 + nfs4_owner_maxsz) | |
9104a55d | 155 | #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ |
2cebf828 TM |
156 | decode_ace_maxsz) |
157 | #define decode_change_info_maxsz (5) | |
158 | #define decode_open_maxsz (op_decode_hdr_maxsz + \ | |
9104a55d | 159 | decode_stateid_maxsz + \ |
2cebf828 TM |
160 | decode_change_info_maxsz + 1 + \ |
161 | nfs4_fattr_bitmap_maxsz + \ | |
162 | decode_delegation_maxsz) | |
9104a55d TM |
163 | #define encode_open_confirm_maxsz \ |
164 | (op_encode_hdr_maxsz + \ | |
165 | encode_stateid_maxsz + 1) | |
166 | #define decode_open_confirm_maxsz \ | |
167 | (op_decode_hdr_maxsz + \ | |
168 | decode_stateid_maxsz) | |
169 | #define encode_open_downgrade_maxsz \ | |
170 | (op_encode_hdr_maxsz + \ | |
171 | encode_stateid_maxsz + 1 + \ | |
172 | encode_share_access_maxsz) | |
173 | #define decode_open_downgrade_maxsz \ | |
174 | (op_decode_hdr_maxsz + \ | |
175 | decode_stateid_maxsz) | |
176 | #define encode_close_maxsz (op_encode_hdr_maxsz + \ | |
177 | 1 + encode_stateid_maxsz) | |
178 | #define decode_close_maxsz (op_decode_hdr_maxsz + \ | |
179 | decode_stateid_maxsz) | |
180 | #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ | |
181 | encode_stateid_maxsz + \ | |
182 | encode_attrs_maxsz) | |
183 | #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ | |
184 | nfs4_fattr_bitmap_maxsz) | |
185 | #define encode_read_maxsz (op_encode_hdr_maxsz + \ | |
186 | encode_stateid_maxsz + 3) | |
187 | #define decode_read_maxsz (op_decode_hdr_maxsz + 2) | |
188 | #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ | |
189 | 2 + encode_verifier_maxsz + 5) | |
190 | #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ | |
191 | decode_verifier_maxsz) | |
192 | #define encode_readlink_maxsz (op_encode_hdr_maxsz) | |
193 | #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) | |
194 | #define encode_write_maxsz (op_encode_hdr_maxsz + \ | |
195 | encode_stateid_maxsz + 4) | |
196 | #define decode_write_maxsz (op_decode_hdr_maxsz + \ | |
197 | 2 + decode_verifier_maxsz) | |
198 | #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) | |
199 | #define decode_commit_maxsz (op_decode_hdr_maxsz + \ | |
200 | decode_verifier_maxsz) | |
1da177e4 LT |
201 | #define encode_remove_maxsz (op_encode_hdr_maxsz + \ |
202 | nfs4_name_maxsz) | |
6ce18391 BH |
203 | #define decode_remove_maxsz (op_decode_hdr_maxsz + \ |
204 | decode_change_info_maxsz) | |
1da177e4 LT |
205 | #define encode_rename_maxsz (op_encode_hdr_maxsz + \ |
206 | 2 * nfs4_name_maxsz) | |
6ce18391 BH |
207 | #define decode_rename_maxsz (op_decode_hdr_maxsz + \ |
208 | decode_change_info_maxsz + \ | |
209 | decode_change_info_maxsz) | |
1da177e4 LT |
210 | #define encode_link_maxsz (op_encode_hdr_maxsz + \ |
211 | nfs4_name_maxsz) | |
6ce18391 | 212 | #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) |
daccbded | 213 | #define encode_lockowner_maxsz (7) |
9104a55d TM |
214 | #define encode_lock_maxsz (op_encode_hdr_maxsz + \ |
215 | 7 + \ | |
daccbded TM |
216 | 1 + encode_stateid_maxsz + 1 + \ |
217 | encode_lockowner_maxsz) | |
9104a55d TM |
218 | #define decode_lock_denied_maxsz \ |
219 | (8 + decode_lockowner_maxsz) | |
220 | #define decode_lock_maxsz (op_decode_hdr_maxsz + \ | |
221 | decode_lock_denied_maxsz) | |
daccbded TM |
222 | #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ |
223 | encode_lockowner_maxsz) | |
9104a55d TM |
224 | #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ |
225 | decode_lock_denied_maxsz) | |
226 | #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ | |
227 | encode_stateid_maxsz + \ | |
228 | 4) | |
229 | #define decode_locku_maxsz (op_decode_hdr_maxsz + \ | |
230 | decode_stateid_maxsz) | |
d3c7b7cc TM |
231 | #define encode_release_lockowner_maxsz \ |
232 | (op_encode_hdr_maxsz + \ | |
233 | encode_lockowner_maxsz) | |
234 | #define decode_release_lockowner_maxsz \ | |
235 | (op_decode_hdr_maxsz) | |
9104a55d TM |
236 | #define encode_access_maxsz (op_encode_hdr_maxsz + 1) |
237 | #define decode_access_maxsz (op_decode_hdr_maxsz + 2) | |
1da177e4 LT |
238 | #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ |
239 | 1 + nfs4_name_maxsz + \ | |
94a6d753 | 240 | 1 + \ |
96928206 | 241 | nfs4_fattr_maxsz) |
1da177e4 LT |
242 | #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) |
243 | #define encode_create_maxsz (op_encode_hdr_maxsz + \ | |
9104a55d TM |
244 | 1 + 2 + nfs4_name_maxsz + \ |
245 | encode_attrs_maxsz) | |
2cebf828 TM |
246 | #define decode_create_maxsz (op_decode_hdr_maxsz + \ |
247 | decode_change_info_maxsz + \ | |
248 | nfs4_fattr_bitmap_maxsz) | |
9104a55d TM |
249 | #define encode_statfs_maxsz (encode_getattr_maxsz) |
250 | #define decode_statfs_maxsz (decode_getattr_maxsz) | |
1da177e4 LT |
251 | #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) |
252 | #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) | |
9104a55d TM |
253 | #define encode_getacl_maxsz (encode_getattr_maxsz) |
254 | #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ | |
255 | nfs4_fattr_bitmap_maxsz + 1) | |
256 | #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ | |
257 | encode_stateid_maxsz + 3) | |
258 | #define decode_setacl_maxsz (decode_setattr_maxsz) | |
e6889620 TM |
259 | #define encode_fs_locations_maxsz \ |
260 | (encode_getattr_maxsz) | |
261 | #define decode_fs_locations_maxsz \ | |
262 | (0) | |
5a5ea0d4 | 263 | #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) |
1650add2 | 264 | #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4)) |
9b7b9fcc AA |
265 | |
266 | #if defined(CONFIG_NFS_V4_1) | |
fc931582 AA |
267 | #define NFS4_MAX_MACHINE_NAME_LEN (64) |
268 | ||
99fe60d0 BH |
269 | #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ |
270 | encode_verifier_maxsz + \ | |
271 | 1 /* co_ownerid.len */ + \ | |
272 | XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ | |
273 | 1 /* flags */ + \ | |
274 | 1 /* spa_how */ + \ | |
275 | 0 /* SP4_NONE (for now) */ + \ | |
db8ac8ba WAA |
276 | 1 /* implementation id array of size 1 */ + \ |
277 | 1 /* nii_domain */ + \ | |
278 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ | |
279 | 1 /* nii_name */ + \ | |
280 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ | |
281 | 3 /* nii_date */) | |
99fe60d0 BH |
282 | #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ |
283 | 2 /* eir_clientid */ + \ | |
284 | 1 /* eir_sequenceid */ + \ | |
285 | 1 /* eir_flags */ + \ | |
286 | 1 /* spr_how */ + \ | |
287 | 0 /* SP4_NONE (for now) */ + \ | |
288 | 2 /* eir_server_owner.so_minor_id */ + \ | |
289 | /* eir_server_owner.so_major_id<> */ \ | |
290 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ | |
291 | /* eir_server_scope<> */ \ | |
292 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ | |
293 | 1 /* eir_server_impl_id array length */ + \ | |
7d2ed9ac WAA |
294 | 1 /* nii_domain */ + \ |
295 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ | |
296 | 1 /* nii_name */ + \ | |
297 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ | |
298 | 3 /* nii_date */) | |
fc931582 AA |
299 | #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) |
300 | #define decode_channel_attrs_maxsz (6 + \ | |
301 | 1 /* ca_rdma_ird.len */ + \ | |
302 | 1 /* ca_rdma_ird */) | |
303 | #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ | |
304 | 2 /* csa_clientid */ + \ | |
305 | 1 /* csa_sequence */ + \ | |
306 | 1 /* csa_flags */ + \ | |
307 | encode_channel_attrs_maxsz + \ | |
308 | encode_channel_attrs_maxsz + \ | |
309 | 1 /* csa_cb_program */ + \ | |
310 | 1 /* csa_sec_parms.len (1) */ + \ | |
311 | 1 /* cb_secflavor (AUTH_SYS) */ + \ | |
312 | 1 /* stamp */ + \ | |
313 | 1 /* machinename.len */ + \ | |
314 | XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ | |
315 | 1 /* uid */ + \ | |
316 | 1 /* gid */ + \ | |
317 | 1 /* gids.len (0) */) | |
318 | #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ | |
319 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ | |
320 | 1 /* csr_sequence */ + \ | |
321 | 1 /* csr_flags */ + \ | |
322 | decode_channel_attrs_maxsz + \ | |
323 | decode_channel_attrs_maxsz) | |
0f3e66c6 AA |
324 | #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) |
325 | #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) | |
fc01cea9 AA |
326 | #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ |
327 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) | |
328 | #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ | |
329 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) | |
18019753 RL |
330 | #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) |
331 | #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) | |
7f11d8d3 AA |
332 | #define encode_getdevicelist_maxsz (op_encode_hdr_maxsz + 4 + \ |
333 | encode_verifier_maxsz) | |
334 | #define decode_getdevicelist_maxsz (op_decode_hdr_maxsz + \ | |
335 | 2 /* nfs_cookie4 gdlr_cookie */ + \ | |
336 | decode_verifier_maxsz \ | |
337 | /* verifier4 gdlr_verifier */ + \ | |
338 | 1 /* gdlr_deviceid_list count */ + \ | |
339 | XDR_QUADLEN(NFS4_PNFS_GETDEVLIST_MAXNUM * \ | |
340 | NFS4_DEVICEID4_SIZE) \ | |
341 | /* gdlr_deviceid_list */ + \ | |
342 | 1 /* bool gdlr_eof */) | |
b1f69b75 AA |
343 | #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \ |
344 | XDR_QUADLEN(NFS4_DEVICEID4_SIZE)) | |
345 | #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ | |
346 | 1 /* layout type */ + \ | |
347 | 1 /* opaque devaddr4 length */ + \ | |
348 | /* devaddr4 payload is read into page */ \ | |
349 | 1 /* notification bitmap length */ + \ | |
350 | 1 /* notification bitmap */) | |
351 | #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ | |
352 | encode_stateid_maxsz) | |
353 | #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ | |
354 | decode_stateid_maxsz + \ | |
355 | XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) | |
863a3c6c AA |
356 | #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \ |
357 | 2 /* offset */ + \ | |
358 | 2 /* length */ + \ | |
359 | 1 /* reclaim */ + \ | |
360 | encode_stateid_maxsz + \ | |
361 | 1 /* new offset (true) */ + \ | |
362 | 2 /* last byte written */ + \ | |
363 | 1 /* nt_timechanged (false) */ + \ | |
364 | 1 /* layoutupdate4 layout type */ + \ | |
365 | 1 /* NULL filelayout layoutupdate4 payload */) | |
366 | #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3) | |
cbe82603 BH |
367 | #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \ |
368 | encode_stateid_maxsz + \ | |
369 | 1 /* FIXME: opaque lrf_body always empty at the moment */) | |
370 | #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \ | |
371 | 1 + decode_stateid_maxsz) | |
fca78d6d BS |
372 | #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1) |
373 | #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz | |
7d974794 BS |
374 | #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \ |
375 | XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
376 | #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1) | |
9aeda35f BS |
377 | #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \ |
378 | XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
379 | #define decode_free_stateid_maxsz (op_decode_hdr_maxsz + 1) | |
9b7b9fcc AA |
380 | #else /* CONFIG_NFS_V4_1 */ |
381 | #define encode_sequence_maxsz 0 | |
382 | #define decode_sequence_maxsz 0 | |
383 | #endif /* CONFIG_NFS_V4_1 */ | |
384 | ||
1da177e4 LT |
385 | #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ |
386 | #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ | |
387 | #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 388 | encode_sequence_maxsz + \ |
1da177e4 | 389 | encode_putfh_maxsz + \ |
9104a55d | 390 | encode_read_maxsz) |
1da177e4 | 391 | #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 392 | decode_sequence_maxsz + \ |
1da177e4 | 393 | decode_putfh_maxsz + \ |
9104a55d | 394 | decode_read_maxsz) |
1da177e4 | 395 | #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 396 | encode_sequence_maxsz + \ |
1da177e4 | 397 | encode_putfh_maxsz + \ |
9104a55d | 398 | encode_readlink_maxsz) |
1da177e4 | 399 | #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 400 | decode_sequence_maxsz + \ |
1da177e4 | 401 | decode_putfh_maxsz + \ |
9104a55d | 402 | decode_readlink_maxsz) |
1da177e4 | 403 | #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 404 | encode_sequence_maxsz + \ |
1da177e4 | 405 | encode_putfh_maxsz + \ |
9104a55d | 406 | encode_readdir_maxsz) |
1da177e4 | 407 | #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 408 | decode_sequence_maxsz + \ |
1da177e4 | 409 | decode_putfh_maxsz + \ |
9104a55d | 410 | decode_readdir_maxsz) |
1da177e4 | 411 | #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 412 | encode_sequence_maxsz + \ |
1da177e4 | 413 | encode_putfh_maxsz + \ |
9104a55d | 414 | encode_write_maxsz + \ |
4f9838c7 | 415 | encode_getattr_maxsz) |
1da177e4 | 416 | #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 417 | decode_sequence_maxsz + \ |
1da177e4 | 418 | decode_putfh_maxsz + \ |
9104a55d | 419 | decode_write_maxsz + \ |
4f9838c7 | 420 | decode_getattr_maxsz) |
1da177e4 | 421 | #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 422 | encode_sequence_maxsz + \ |
1da177e4 | 423 | encode_putfh_maxsz + \ |
9104a55d | 424 | encode_commit_maxsz + \ |
4f9838c7 | 425 | encode_getattr_maxsz) |
1da177e4 | 426 | #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 427 | decode_sequence_maxsz + \ |
1da177e4 | 428 | decode_putfh_maxsz + \ |
9104a55d | 429 | decode_commit_maxsz + \ |
4f9838c7 | 430 | decode_getattr_maxsz) |
1da177e4 | 431 | #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 432 | encode_sequence_maxsz + \ |
2cebf828 TM |
433 | encode_putfh_maxsz + \ |
434 | encode_savefh_maxsz + \ | |
435 | encode_open_maxsz + \ | |
436 | encode_getfh_maxsz + \ | |
437 | encode_getattr_maxsz + \ | |
438 | encode_restorefh_maxsz + \ | |
439 | encode_getattr_maxsz) | |
1da177e4 | 440 | #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 441 | decode_sequence_maxsz + \ |
2cebf828 TM |
442 | decode_putfh_maxsz + \ |
443 | decode_savefh_maxsz + \ | |
444 | decode_open_maxsz + \ | |
445 | decode_getfh_maxsz + \ | |
446 | decode_getattr_maxsz + \ | |
447 | decode_restorefh_maxsz + \ | |
448 | decode_getattr_maxsz) | |
9104a55d TM |
449 | #define NFS4_enc_open_confirm_sz \ |
450 | (compound_encode_hdr_maxsz + \ | |
451 | encode_putfh_maxsz + \ | |
452 | encode_open_confirm_maxsz) | |
453 | #define NFS4_dec_open_confirm_sz \ | |
454 | (compound_decode_hdr_maxsz + \ | |
455 | decode_putfh_maxsz + \ | |
456 | decode_open_confirm_maxsz) | |
1da177e4 | 457 | #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 458 | encode_sequence_maxsz + \ |
1da177e4 | 459 | encode_putfh_maxsz + \ |
2cebf828 TM |
460 | encode_open_maxsz + \ |
461 | encode_getattr_maxsz) | |
1da177e4 | 462 | #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 463 | decode_sequence_maxsz + \ |
1da177e4 | 464 | decode_putfh_maxsz + \ |
2cebf828 TM |
465 | decode_open_maxsz + \ |
466 | decode_getattr_maxsz) | |
1da177e4 LT |
467 | #define NFS4_enc_open_downgrade_sz \ |
468 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 469 | encode_sequence_maxsz + \ |
9104a55d TM |
470 | encode_putfh_maxsz + \ |
471 | encode_open_downgrade_maxsz + \ | |
472 | encode_getattr_maxsz) | |
1da177e4 LT |
473 | #define NFS4_dec_open_downgrade_sz \ |
474 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 475 | decode_sequence_maxsz + \ |
9104a55d TM |
476 | decode_putfh_maxsz + \ |
477 | decode_open_downgrade_maxsz + \ | |
478 | decode_getattr_maxsz) | |
479 | #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 480 | encode_sequence_maxsz + \ |
9104a55d TM |
481 | encode_putfh_maxsz + \ |
482 | encode_close_maxsz + \ | |
483 | encode_getattr_maxsz) | |
484 | #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 485 | decode_sequence_maxsz + \ |
9104a55d TM |
486 | decode_putfh_maxsz + \ |
487 | decode_close_maxsz + \ | |
488 | decode_getattr_maxsz) | |
489 | #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 490 | encode_sequence_maxsz + \ |
9104a55d TM |
491 | encode_putfh_maxsz + \ |
492 | encode_setattr_maxsz + \ | |
493 | encode_getattr_maxsz) | |
494 | #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 495 | decode_sequence_maxsz + \ |
9104a55d TM |
496 | decode_putfh_maxsz + \ |
497 | decode_setattr_maxsz + \ | |
498 | decode_getattr_maxsz) | |
1da177e4 | 499 | #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 500 | encode_sequence_maxsz + \ |
1da177e4 LT |
501 | encode_putfh_maxsz + \ |
502 | encode_fsinfo_maxsz) | |
503 | #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 504 | decode_sequence_maxsz + \ |
1da177e4 LT |
505 | decode_putfh_maxsz + \ |
506 | decode_fsinfo_maxsz) | |
507 | #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ | |
508 | encode_renew_maxsz) | |
509 | #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ | |
510 | decode_renew_maxsz) | |
511 | #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ | |
512 | encode_setclientid_maxsz) | |
513 | #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ | |
514 | decode_setclientid_maxsz) | |
515 | #define NFS4_enc_setclientid_confirm_sz \ | |
516 | (compound_encode_hdr_maxsz + \ | |
517 | encode_setclientid_confirm_maxsz + \ | |
518 | encode_putrootfh_maxsz + \ | |
519 | encode_fsinfo_maxsz) | |
520 | #define NFS4_dec_setclientid_confirm_sz \ | |
521 | (compound_decode_hdr_maxsz + \ | |
522 | decode_setclientid_confirm_maxsz + \ | |
523 | decode_putrootfh_maxsz + \ | |
524 | decode_fsinfo_maxsz) | |
525 | #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 526 | encode_sequence_maxsz + \ |
1da177e4 | 527 | encode_putfh_maxsz + \ |
9104a55d | 528 | encode_lock_maxsz) |
1da177e4 | 529 | #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 530 | decode_sequence_maxsz + \ |
1da177e4 | 531 | decode_putfh_maxsz + \ |
9104a55d | 532 | decode_lock_maxsz) |
1da177e4 | 533 | #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 534 | encode_sequence_maxsz + \ |
1da177e4 | 535 | encode_putfh_maxsz + \ |
9104a55d TM |
536 | encode_lockt_maxsz) |
537 | #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 538 | decode_sequence_maxsz + \ |
9104a55d TM |
539 | decode_putfh_maxsz + \ |
540 | decode_lockt_maxsz) | |
1da177e4 | 541 | #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 542 | encode_sequence_maxsz + \ |
1da177e4 | 543 | encode_putfh_maxsz + \ |
9104a55d | 544 | encode_locku_maxsz) |
1da177e4 | 545 | #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 546 | decode_sequence_maxsz + \ |
1da177e4 | 547 | decode_putfh_maxsz + \ |
9104a55d | 548 | decode_locku_maxsz) |
d3c7b7cc TM |
549 | #define NFS4_enc_release_lockowner_sz \ |
550 | (compound_encode_hdr_maxsz + \ | |
551 | encode_lockowner_maxsz) | |
552 | #define NFS4_dec_release_lockowner_sz \ | |
553 | (compound_decode_hdr_maxsz + \ | |
554 | decode_lockowner_maxsz) | |
1da177e4 | 555 | #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 556 | encode_sequence_maxsz + \ |
1da177e4 | 557 | encode_putfh_maxsz + \ |
76b32999 TM |
558 | encode_access_maxsz + \ |
559 | encode_getattr_maxsz) | |
1da177e4 | 560 | #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 561 | decode_sequence_maxsz + \ |
1da177e4 | 562 | decode_putfh_maxsz + \ |
76b32999 TM |
563 | decode_access_maxsz + \ |
564 | decode_getattr_maxsz) | |
1da177e4 | 565 | #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 566 | encode_sequence_maxsz + \ |
1da177e4 LT |
567 | encode_putfh_maxsz + \ |
568 | encode_getattr_maxsz) | |
569 | #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 570 | decode_sequence_maxsz + \ |
1da177e4 LT |
571 | decode_putfh_maxsz + \ |
572 | decode_getattr_maxsz) | |
573 | #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 574 | encode_sequence_maxsz + \ |
1da177e4 LT |
575 | encode_putfh_maxsz + \ |
576 | encode_lookup_maxsz + \ | |
577 | encode_getattr_maxsz + \ | |
578 | encode_getfh_maxsz) | |
579 | #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 580 | decode_sequence_maxsz + \ |
1da177e4 | 581 | decode_putfh_maxsz + \ |
e6889620 | 582 | decode_lookup_maxsz + \ |
1da177e4 LT |
583 | decode_getattr_maxsz + \ |
584 | decode_getfh_maxsz) | |
585 | #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 586 | encode_sequence_maxsz + \ |
1da177e4 LT |
587 | encode_putrootfh_maxsz + \ |
588 | encode_getattr_maxsz + \ | |
589 | encode_getfh_maxsz) | |
590 | #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 591 | decode_sequence_maxsz + \ |
1da177e4 LT |
592 | decode_putrootfh_maxsz + \ |
593 | decode_getattr_maxsz + \ | |
594 | decode_getfh_maxsz) | |
595 | #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 596 | encode_sequence_maxsz + \ |
1da177e4 | 597 | encode_putfh_maxsz + \ |
16e42959 TM |
598 | encode_remove_maxsz + \ |
599 | encode_getattr_maxsz) | |
1da177e4 | 600 | #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 601 | decode_sequence_maxsz + \ |
1da177e4 | 602 | decode_putfh_maxsz + \ |
6ce18391 | 603 | decode_remove_maxsz + \ |
16e42959 | 604 | decode_getattr_maxsz) |
1da177e4 | 605 | #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 606 | encode_sequence_maxsz + \ |
1da177e4 LT |
607 | encode_putfh_maxsz + \ |
608 | encode_savefh_maxsz + \ | |
609 | encode_putfh_maxsz + \ | |
6caf2c82 TM |
610 | encode_rename_maxsz + \ |
611 | encode_getattr_maxsz + \ | |
612 | encode_restorefh_maxsz + \ | |
613 | encode_getattr_maxsz) | |
1da177e4 | 614 | #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 615 | decode_sequence_maxsz + \ |
1da177e4 LT |
616 | decode_putfh_maxsz + \ |
617 | decode_savefh_maxsz + \ | |
618 | decode_putfh_maxsz + \ | |
6caf2c82 TM |
619 | decode_rename_maxsz + \ |
620 | decode_getattr_maxsz + \ | |
621 | decode_restorefh_maxsz + \ | |
622 | decode_getattr_maxsz) | |
1da177e4 | 623 | #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 624 | encode_sequence_maxsz + \ |
1da177e4 LT |
625 | encode_putfh_maxsz + \ |
626 | encode_savefh_maxsz + \ | |
627 | encode_putfh_maxsz + \ | |
91ba2eee TM |
628 | encode_link_maxsz + \ |
629 | decode_getattr_maxsz + \ | |
630 | encode_restorefh_maxsz + \ | |
631 | decode_getattr_maxsz) | |
1da177e4 | 632 | #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 633 | decode_sequence_maxsz + \ |
1da177e4 LT |
634 | decode_putfh_maxsz + \ |
635 | decode_savefh_maxsz + \ | |
636 | decode_putfh_maxsz + \ | |
91ba2eee TM |
637 | decode_link_maxsz + \ |
638 | decode_getattr_maxsz + \ | |
639 | decode_restorefh_maxsz + \ | |
640 | decode_getattr_maxsz) | |
1da177e4 | 641 | #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 642 | encode_sequence_maxsz + \ |
1da177e4 LT |
643 | encode_putfh_maxsz + \ |
644 | encode_symlink_maxsz + \ | |
645 | encode_getattr_maxsz + \ | |
646 | encode_getfh_maxsz) | |
647 | #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 648 | decode_sequence_maxsz + \ |
1da177e4 LT |
649 | decode_putfh_maxsz + \ |
650 | decode_symlink_maxsz + \ | |
651 | decode_getattr_maxsz + \ | |
652 | decode_getfh_maxsz) | |
653 | #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 654 | encode_sequence_maxsz + \ |
1da177e4 | 655 | encode_putfh_maxsz + \ |
56ae19f3 | 656 | encode_savefh_maxsz + \ |
1da177e4 | 657 | encode_create_maxsz + \ |
56ae19f3 | 658 | encode_getfh_maxsz + \ |
1da177e4 | 659 | encode_getattr_maxsz + \ |
56ae19f3 TM |
660 | encode_restorefh_maxsz + \ |
661 | encode_getattr_maxsz) | |
1da177e4 | 662 | #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 663 | decode_sequence_maxsz + \ |
1da177e4 | 664 | decode_putfh_maxsz + \ |
56ae19f3 | 665 | decode_savefh_maxsz + \ |
1da177e4 | 666 | decode_create_maxsz + \ |
56ae19f3 | 667 | decode_getfh_maxsz + \ |
1da177e4 | 668 | decode_getattr_maxsz + \ |
56ae19f3 TM |
669 | decode_restorefh_maxsz + \ |
670 | decode_getattr_maxsz) | |
1da177e4 | 671 | #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 672 | encode_sequence_maxsz + \ |
1da177e4 LT |
673 | encode_putfh_maxsz + \ |
674 | encode_getattr_maxsz) | |
675 | #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 676 | decode_sequence_maxsz + \ |
1da177e4 LT |
677 | decode_putfh_maxsz + \ |
678 | decode_getattr_maxsz) | |
679 | #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 680 | encode_sequence_maxsz + \ |
1da177e4 | 681 | encode_putfh_maxsz + \ |
9104a55d | 682 | encode_statfs_maxsz) |
1da177e4 | 683 | #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 684 | decode_sequence_maxsz + \ |
1da177e4 | 685 | decode_putfh_maxsz + \ |
9104a55d | 686 | decode_statfs_maxsz) |
1da177e4 | 687 | #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 688 | encode_sequence_maxsz + \ |
ab91f264 | 689 | encode_putfh_maxsz + \ |
1da177e4 LT |
690 | encode_getattr_maxsz) |
691 | #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 692 | decode_sequence_maxsz + \ |
ab91f264 | 693 | decode_putfh_maxsz + \ |
1da177e4 LT |
694 | decode_getattr_maxsz) |
695 | #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 696 | encode_sequence_maxsz + \ |
1da177e4 | 697 | encode_putfh_maxsz + \ |
fa178f29 TM |
698 | encode_delegreturn_maxsz + \ |
699 | encode_getattr_maxsz) | |
1da177e4 | 700 | #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 701 | decode_sequence_maxsz + \ |
fa178f29 TM |
702 | decode_delegreturn_maxsz + \ |
703 | decode_getattr_maxsz) | |
029d105e | 704 | #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 705 | encode_sequence_maxsz + \ |
029d105e | 706 | encode_putfh_maxsz + \ |
9104a55d | 707 | encode_getacl_maxsz) |
029d105e | 708 | #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 709 | decode_sequence_maxsz + \ |
029d105e | 710 | decode_putfh_maxsz + \ |
9104a55d | 711 | decode_getacl_maxsz) |
23ec6965 | 712 | #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 713 | encode_sequence_maxsz + \ |
23ec6965 | 714 | encode_putfh_maxsz + \ |
9104a55d | 715 | encode_setacl_maxsz) |
23ec6965 | 716 | #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 717 | decode_sequence_maxsz + \ |
23ec6965 | 718 | decode_putfh_maxsz + \ |
9104a55d | 719 | decode_setacl_maxsz) |
683b57b4 TM |
720 | #define NFS4_enc_fs_locations_sz \ |
721 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 722 | encode_sequence_maxsz + \ |
683b57b4 | 723 | encode_putfh_maxsz + \ |
e6889620 TM |
724 | encode_lookup_maxsz + \ |
725 | encode_fs_locations_maxsz) | |
683b57b4 TM |
726 | #define NFS4_dec_fs_locations_sz \ |
727 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 728 | decode_sequence_maxsz + \ |
683b57b4 | 729 | decode_putfh_maxsz + \ |
e6889620 TM |
730 | decode_lookup_maxsz + \ |
731 | decode_fs_locations_maxsz) | |
5a5ea0d4 BS |
732 | #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ |
733 | encode_sequence_maxsz + \ | |
734 | encode_putfh_maxsz + \ | |
735 | encode_secinfo_maxsz) | |
736 | #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ | |
737 | decode_sequence_maxsz + \ | |
738 | decode_putfh_maxsz + \ | |
739 | decode_secinfo_maxsz) | |
99fe60d0 BH |
740 | #if defined(CONFIG_NFS_V4_1) |
741 | #define NFS4_enc_exchange_id_sz \ | |
742 | (compound_encode_hdr_maxsz + \ | |
743 | encode_exchange_id_maxsz) | |
744 | #define NFS4_dec_exchange_id_sz \ | |
745 | (compound_decode_hdr_maxsz + \ | |
746 | decode_exchange_id_maxsz) | |
fc931582 AA |
747 | #define NFS4_enc_create_session_sz \ |
748 | (compound_encode_hdr_maxsz + \ | |
749 | encode_create_session_maxsz) | |
750 | #define NFS4_dec_create_session_sz \ | |
751 | (compound_decode_hdr_maxsz + \ | |
752 | decode_create_session_maxsz) | |
0f3e66c6 AA |
753 | #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ |
754 | encode_destroy_session_maxsz) | |
755 | #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ | |
756 | decode_destroy_session_maxsz) | |
fc01cea9 AA |
757 | #define NFS4_enc_sequence_sz \ |
758 | (compound_decode_hdr_maxsz + \ | |
759 | encode_sequence_maxsz) | |
760 | #define NFS4_dec_sequence_sz \ | |
761 | (compound_decode_hdr_maxsz + \ | |
762 | decode_sequence_maxsz) | |
2050f0cc AA |
763 | #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ |
764 | encode_sequence_maxsz + \ | |
765 | encode_putrootfh_maxsz + \ | |
766 | encode_fsinfo_maxsz) | |
767 | #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ | |
768 | decode_sequence_maxsz + \ | |
769 | decode_putrootfh_maxsz + \ | |
770 | decode_fsinfo_maxsz) | |
18019753 RL |
771 | #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ |
772 | encode_sequence_maxsz + \ | |
773 | encode_reclaim_complete_maxsz) | |
774 | #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ | |
775 | decode_sequence_maxsz + \ | |
776 | decode_reclaim_complete_maxsz) | |
7f11d8d3 AA |
777 | #define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \ |
778 | encode_sequence_maxsz + \ | |
779 | encode_putfh_maxsz + \ | |
780 | encode_getdevicelist_maxsz) | |
781 | #define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \ | |
782 | decode_sequence_maxsz + \ | |
783 | decode_putfh_maxsz + \ | |
784 | decode_getdevicelist_maxsz) | |
b1f69b75 AA |
785 | #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ |
786 | encode_sequence_maxsz +\ | |
787 | encode_getdeviceinfo_maxsz) | |
788 | #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ | |
789 | decode_sequence_maxsz + \ | |
790 | decode_getdeviceinfo_maxsz) | |
791 | #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ | |
792 | encode_sequence_maxsz + \ | |
793 | encode_putfh_maxsz + \ | |
794 | encode_layoutget_maxsz) | |
795 | #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ | |
796 | decode_sequence_maxsz + \ | |
797 | decode_putfh_maxsz + \ | |
798 | decode_layoutget_maxsz) | |
863a3c6c AA |
799 | #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ |
800 | encode_sequence_maxsz +\ | |
801 | encode_putfh_maxsz + \ | |
802 | encode_layoutcommit_maxsz + \ | |
803 | encode_getattr_maxsz) | |
804 | #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ | |
805 | decode_sequence_maxsz + \ | |
806 | decode_putfh_maxsz + \ | |
807 | decode_layoutcommit_maxsz + \ | |
808 | decode_getattr_maxsz) | |
cbe82603 BH |
809 | #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \ |
810 | encode_sequence_maxsz + \ | |
811 | encode_putfh_maxsz + \ | |
812 | encode_layoutreturn_maxsz) | |
813 | #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \ | |
814 | decode_sequence_maxsz + \ | |
815 | decode_putfh_maxsz + \ | |
816 | decode_layoutreturn_maxsz) | |
fca78d6d BS |
817 | #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \ |
818 | encode_sequence_maxsz + \ | |
819 | encode_putrootfh_maxsz +\ | |
820 | encode_secinfo_no_name_maxsz) | |
821 | #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \ | |
822 | decode_sequence_maxsz + \ | |
823 | decode_putrootfh_maxsz + \ | |
824 | decode_secinfo_no_name_maxsz) | |
7d974794 BS |
825 | #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \ |
826 | encode_sequence_maxsz + \ | |
827 | encode_test_stateid_maxsz) | |
828 | #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \ | |
829 | decode_sequence_maxsz + \ | |
830 | decode_test_stateid_maxsz) | |
9aeda35f BS |
831 | #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \ |
832 | encode_sequence_maxsz + \ | |
833 | encode_free_stateid_maxsz) | |
834 | #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \ | |
835 | decode_sequence_maxsz + \ | |
836 | decode_free_stateid_maxsz) | |
2449ea2e AB |
837 | |
838 | const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + | |
839 | compound_encode_hdr_maxsz + | |
840 | encode_sequence_maxsz + | |
841 | encode_putfh_maxsz + | |
842 | encode_getattr_maxsz) * | |
843 | XDR_UNIT); | |
844 | ||
845 | const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + | |
846 | compound_decode_hdr_maxsz + | |
847 | decode_sequence_maxsz + | |
848 | decode_putfh_maxsz) * | |
849 | XDR_UNIT); | |
99fe60d0 | 850 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 | 851 | |
db8ac8ba WAA |
852 | static unsigned short send_implementation_id = 1; |
853 | ||
854 | module_param(send_implementation_id, ushort, 0644); | |
855 | MODULE_PARM_DESC(send_implementation_id, | |
856 | "Send implementation ID with NFSv4.1 exchange_id"); | |
857 | ||
bca79478 TM |
858 | static const umode_t nfs_type2fmt[] = { |
859 | [NF4BAD] = 0, | |
860 | [NF4REG] = S_IFREG, | |
861 | [NF4DIR] = S_IFDIR, | |
862 | [NF4BLK] = S_IFBLK, | |
863 | [NF4CHR] = S_IFCHR, | |
864 | [NF4LNK] = S_IFLNK, | |
865 | [NF4SOCK] = S_IFSOCK, | |
866 | [NF4FIFO] = S_IFIFO, | |
867 | [NF4ATTRDIR] = 0, | |
868 | [NF4NAMEDATTR] = 0, | |
1da177e4 LT |
869 | }; |
870 | ||
871 | struct compound_hdr { | |
872 | int32_t status; | |
873 | uint32_t nops; | |
d017931c | 874 | __be32 * nops_p; |
1da177e4 LT |
875 | uint32_t taglen; |
876 | char * tag; | |
0c4e8c18 | 877 | uint32_t replen; /* expected reply words */ |
66cc0429 | 878 | u32 minorversion; |
1da177e4 LT |
879 | }; |
880 | ||
13c65ce9 BH |
881 | static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) |
882 | { | |
883 | __be32 *p = xdr_reserve_space(xdr, nbytes); | |
884 | BUG_ON(!p); | |
885 | return p; | |
886 | } | |
1da177e4 | 887 | |
cb17e556 TM |
888 | static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len) |
889 | { | |
890 | __be32 *p; | |
891 | ||
892 | p = xdr_reserve_space(xdr, len); | |
893 | xdr_encode_opaque_fixed(p, buf, len); | |
894 | } | |
895 | ||
1da177e4 LT |
896 | static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) |
897 | { | |
8687b63a | 898 | __be32 *p; |
1da177e4 | 899 | |
6fdfb0bc | 900 | p = reserve_space(xdr, 4 + len); |
1da177e4 LT |
901 | xdr_encode_opaque(p, str, len); |
902 | } | |
903 | ||
4ade9821 TM |
904 | static void encode_uint32(struct xdr_stream *xdr, u32 n) |
905 | { | |
906 | __be32 *p; | |
907 | ||
908 | p = reserve_space(xdr, 4); | |
909 | *p = cpu_to_be32(n); | |
910 | } | |
911 | ||
912 | static void encode_nfs4_seqid(struct xdr_stream *xdr, | |
913 | const struct nfs_seqid *seqid) | |
914 | { | |
915 | encode_uint32(xdr, seqid->sequence->counter); | |
916 | } | |
917 | ||
0c4e8c18 BH |
918 | static void encode_compound_hdr(struct xdr_stream *xdr, |
919 | struct rpc_rqst *req, | |
920 | struct compound_hdr *hdr) | |
1da177e4 | 921 | { |
8687b63a | 922 | __be32 *p; |
a17c2153 | 923 | struct rpc_auth *auth = req->rq_cred->cr_auth; |
0c4e8c18 BH |
924 | |
925 | /* initialize running count of expected bytes in reply. | |
926 | * NOTE: the replied tag SHOULD be the same is the one sent, | |
927 | * but this is not required as a MUST for the server to do so. */ | |
928 | hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; | |
1da177e4 | 929 | |
1da177e4 | 930 | BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); |
6fdfb0bc TM |
931 | encode_string(xdr, hdr->taglen, hdr->tag); |
932 | p = reserve_space(xdr, 8); | |
e75bc1c8 | 933 | *p++ = cpu_to_be32(hdr->minorversion); |
d017931c | 934 | hdr->nops_p = p; |
34558513 | 935 | *p = cpu_to_be32(hdr->nops); |
d017931c AA |
936 | } |
937 | ||
938 | static void encode_nops(struct compound_hdr *hdr) | |
939 | { | |
fc931582 | 940 | BUG_ON(hdr->nops > NFS4_MAX_OPS); |
d017931c | 941 | *hdr->nops_p = htonl(hdr->nops); |
1da177e4 LT |
942 | } |
943 | ||
ea9d23f5 TM |
944 | static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid) |
945 | { | |
2d2f24ad | 946 | encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); |
ea9d23f5 TM |
947 | } |
948 | ||
1da177e4 LT |
949 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) |
950 | { | |
cb17e556 | 951 | encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
952 | } |
953 | ||
cf8cdbe5 | 954 | static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) |
1da177e4 LT |
955 | { |
956 | char owner_name[IDMAP_NAMESZ]; | |
957 | char owner_group[IDMAP_NAMESZ]; | |
958 | int owner_namelen = 0; | |
959 | int owner_grouplen = 0; | |
8687b63a AV |
960 | __be32 *p; |
961 | __be32 *q; | |
1da177e4 LT |
962 | int len; |
963 | uint32_t bmval0 = 0; | |
964 | uint32_t bmval1 = 0; | |
1da177e4 LT |
965 | |
966 | /* | |
967 | * We reserve enough space to write the entire attribute buffer at once. | |
968 | * In the worst-case, this would be | |
969 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) | |
970 | * = 36 bytes, plus any contribution from variable-length fields | |
23ec6965 | 971 | * such as owner/group. |
1da177e4 LT |
972 | */ |
973 | len = 16; | |
974 | ||
975 | /* Sigh */ | |
976 | if (iap->ia_valid & ATTR_SIZE) | |
977 | len += 8; | |
978 | if (iap->ia_valid & ATTR_MODE) | |
979 | len += 4; | |
980 | if (iap->ia_valid & ATTR_UID) { | |
e4fd72a1 | 981 | owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); |
1da177e4 | 982 | if (owner_namelen < 0) { |
fe82a183 CL |
983 | dprintk("nfs: couldn't resolve uid %d to string\n", |
984 | iap->ia_uid); | |
1da177e4 LT |
985 | /* XXX */ |
986 | strcpy(owner_name, "nobody"); | |
987 | owner_namelen = sizeof("nobody") - 1; | |
988 | /* goto out; */ | |
989 | } | |
990 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); | |
991 | } | |
992 | if (iap->ia_valid & ATTR_GID) { | |
e4fd72a1 | 993 | owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); |
1da177e4 | 994 | if (owner_grouplen < 0) { |
fe82a183 CL |
995 | dprintk("nfs: couldn't resolve gid %d to string\n", |
996 | iap->ia_gid); | |
1da177e4 LT |
997 | strcpy(owner_group, "nobody"); |
998 | owner_grouplen = sizeof("nobody") - 1; | |
999 | /* goto out; */ | |
1000 | } | |
1001 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); | |
1002 | } | |
1003 | if (iap->ia_valid & ATTR_ATIME_SET) | |
1004 | len += 16; | |
1005 | else if (iap->ia_valid & ATTR_ATIME) | |
1006 | len += 4; | |
1007 | if (iap->ia_valid & ATTR_MTIME_SET) | |
1008 | len += 16; | |
1009 | else if (iap->ia_valid & ATTR_MTIME) | |
1010 | len += 4; | |
13c65ce9 | 1011 | p = reserve_space(xdr, len); |
1da177e4 LT |
1012 | |
1013 | /* | |
1014 | * We write the bitmap length now, but leave the bitmap and the attribute | |
1015 | * buffer length to be backfilled at the end of this routine. | |
1016 | */ | |
e75bc1c8 | 1017 | *p++ = cpu_to_be32(2); |
1da177e4 LT |
1018 | q = p; |
1019 | p += 3; | |
1020 | ||
1021 | if (iap->ia_valid & ATTR_SIZE) { | |
1022 | bmval0 |= FATTR4_WORD0_SIZE; | |
b95be5a9 | 1023 | p = xdr_encode_hyper(p, iap->ia_size); |
1da177e4 LT |
1024 | } |
1025 | if (iap->ia_valid & ATTR_MODE) { | |
1026 | bmval1 |= FATTR4_WORD1_MODE; | |
e75bc1c8 | 1027 | *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); |
1da177e4 LT |
1028 | } |
1029 | if (iap->ia_valid & ATTR_UID) { | |
1030 | bmval1 |= FATTR4_WORD1_OWNER; | |
811652bd | 1031 | p = xdr_encode_opaque(p, owner_name, owner_namelen); |
1da177e4 LT |
1032 | } |
1033 | if (iap->ia_valid & ATTR_GID) { | |
1034 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; | |
811652bd | 1035 | p = xdr_encode_opaque(p, owner_group, owner_grouplen); |
1da177e4 LT |
1036 | } |
1037 | if (iap->ia_valid & ATTR_ATIME_SET) { | |
1038 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
e75bc1c8 BH |
1039 | *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); |
1040 | *p++ = cpu_to_be32(0); | |
d3f6baaa TM |
1041 | *p++ = cpu_to_be32(iap->ia_atime.tv_sec); |
1042 | *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); | |
1da177e4 LT |
1043 | } |
1044 | else if (iap->ia_valid & ATTR_ATIME) { | |
1045 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
e75bc1c8 | 1046 | *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); |
1da177e4 LT |
1047 | } |
1048 | if (iap->ia_valid & ATTR_MTIME_SET) { | |
1049 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
e75bc1c8 BH |
1050 | *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); |
1051 | *p++ = cpu_to_be32(0); | |
1052 | *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); | |
1053 | *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); | |
1da177e4 LT |
1054 | } |
1055 | else if (iap->ia_valid & ATTR_MTIME) { | |
1056 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
e75bc1c8 | 1057 | *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); |
1da177e4 | 1058 | } |
6c0195a4 | 1059 | |
1da177e4 LT |
1060 | /* |
1061 | * Now we backfill the bitmap and the attribute buffer length. | |
1062 | */ | |
1063 | if (len != ((char *)p - (char *)q) + 4) { | |
f9fd2d9c | 1064 | printk(KERN_ERR "NFS: Attr length error, %u != %Zu\n", |
1da177e4 LT |
1065 | len, ((char *)p - (char *)q) + 4); |
1066 | BUG(); | |
1067 | } | |
1068 | len = (char *)p - (char *)q - 12; | |
1069 | *q++ = htonl(bmval0); | |
1070 | *q++ = htonl(bmval1); | |
34558513 | 1071 | *q = htonl(len); |
1da177e4 | 1072 | |
1da177e4 | 1073 | /* out: */ |
1da177e4 LT |
1074 | } |
1075 | ||
cf8cdbe5 | 1076 | static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) |
1da177e4 | 1077 | { |
8687b63a | 1078 | __be32 *p; |
1da177e4 | 1079 | |
13c65ce9 | 1080 | p = reserve_space(xdr, 8); |
e75bc1c8 | 1081 | *p++ = cpu_to_be32(OP_ACCESS); |
34558513 | 1082 | *p = cpu_to_be32(access); |
d017931c | 1083 | hdr->nops++; |
dadf0c27 | 1084 | hdr->replen += decode_access_maxsz; |
1da177e4 LT |
1085 | } |
1086 | ||
cf8cdbe5 | 1087 | static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1088 | { |
8687b63a | 1089 | __be32 *p; |
1da177e4 | 1090 | |
4ade9821 TM |
1091 | p = reserve_space(xdr, 4); |
1092 | *p = cpu_to_be32(OP_CLOSE); | |
1093 | encode_nfs4_seqid(xdr, arg->seqid); | |
ea9d23f5 | 1094 | encode_nfs4_stateid(xdr, arg->stateid); |
d017931c | 1095 | hdr->nops++; |
dadf0c27 | 1096 | hdr->replen += decode_close_maxsz; |
1da177e4 LT |
1097 | } |
1098 | ||
cf8cdbe5 | 1099 | static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 1100 | { |
8687b63a | 1101 | __be32 *p; |
6c0195a4 | 1102 | |
13c65ce9 | 1103 | p = reserve_space(xdr, 16); |
e75bc1c8 | 1104 | *p++ = cpu_to_be32(OP_COMMIT); |
b95be5a9 | 1105 | p = xdr_encode_hyper(p, args->offset); |
34558513 | 1106 | *p = cpu_to_be32(args->count); |
d017931c | 1107 | hdr->nops++; |
dadf0c27 | 1108 | hdr->replen += decode_commit_maxsz; |
1da177e4 LT |
1109 | } |
1110 | ||
cf8cdbe5 | 1111 | static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) |
1da177e4 | 1112 | { |
8687b63a | 1113 | __be32 *p; |
6c0195a4 | 1114 | |
13c65ce9 | 1115 | p = reserve_space(xdr, 8); |
e75bc1c8 | 1116 | *p++ = cpu_to_be32(OP_CREATE); |
34558513 | 1117 | *p = cpu_to_be32(create->ftype); |
1da177e4 LT |
1118 | |
1119 | switch (create->ftype) { | |
1120 | case NF4LNK: | |
13c65ce9 | 1121 | p = reserve_space(xdr, 4); |
34558513 | 1122 | *p = cpu_to_be32(create->u.symlink.len); |
94a6d753 | 1123 | xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); |
1da177e4 LT |
1124 | break; |
1125 | ||
1126 | case NF4BLK: case NF4CHR: | |
13c65ce9 | 1127 | p = reserve_space(xdr, 8); |
e75bc1c8 | 1128 | *p++ = cpu_to_be32(create->u.device.specdata1); |
34558513 | 1129 | *p = cpu_to_be32(create->u.device.specdata2); |
1da177e4 LT |
1130 | break; |
1131 | ||
1132 | default: | |
1133 | break; | |
1134 | } | |
1135 | ||
811652bd | 1136 | encode_string(xdr, create->name->len, create->name->name); |
d017931c | 1137 | hdr->nops++; |
dadf0c27 | 1138 | hdr->replen += decode_create_maxsz; |
1da177e4 | 1139 | |
cf8cdbe5 | 1140 | encode_attrs(xdr, create->attrs, create->server); |
1da177e4 LT |
1141 | } |
1142 | ||
cf8cdbe5 | 1143 | static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) |
1da177e4 | 1144 | { |
05d564fe | 1145 | __be32 *p; |
1da177e4 | 1146 | |
13c65ce9 | 1147 | p = reserve_space(xdr, 12); |
e75bc1c8 BH |
1148 | *p++ = cpu_to_be32(OP_GETATTR); |
1149 | *p++ = cpu_to_be32(1); | |
34558513 | 1150 | *p = cpu_to_be32(bitmap); |
d017931c | 1151 | hdr->nops++; |
dadf0c27 | 1152 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
1153 | } |
1154 | ||
cf8cdbe5 | 1155 | static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) |
1da177e4 | 1156 | { |
05d564fe | 1157 | __be32 *p; |
1da177e4 | 1158 | |
13c65ce9 | 1159 | p = reserve_space(xdr, 16); |
e75bc1c8 BH |
1160 | *p++ = cpu_to_be32(OP_GETATTR); |
1161 | *p++ = cpu_to_be32(2); | |
1162 | *p++ = cpu_to_be32(bm0); | |
34558513 | 1163 | *p = cpu_to_be32(bm1); |
d017931c | 1164 | hdr->nops++; |
dadf0c27 | 1165 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
1166 | } |
1167 | ||
dae100c2 FI |
1168 | static void |
1169 | encode_getattr_three(struct xdr_stream *xdr, | |
1170 | uint32_t bm0, uint32_t bm1, uint32_t bm2, | |
1171 | struct compound_hdr *hdr) | |
1172 | { | |
1173 | __be32 *p; | |
1174 | ||
1175 | p = reserve_space(xdr, 4); | |
1176 | *p = cpu_to_be32(OP_GETATTR); | |
1177 | if (bm2) { | |
1178 | p = reserve_space(xdr, 16); | |
1179 | *p++ = cpu_to_be32(3); | |
1180 | *p++ = cpu_to_be32(bm0); | |
1181 | *p++ = cpu_to_be32(bm1); | |
1182 | *p = cpu_to_be32(bm2); | |
1183 | } else if (bm1) { | |
1184 | p = reserve_space(xdr, 12); | |
1185 | *p++ = cpu_to_be32(2); | |
1186 | *p++ = cpu_to_be32(bm0); | |
1187 | *p = cpu_to_be32(bm1); | |
1188 | } else { | |
1189 | p = reserve_space(xdr, 8); | |
1190 | *p++ = cpu_to_be32(1); | |
1191 | *p = cpu_to_be32(bm0); | |
1192 | } | |
1193 | hdr->nops++; | |
1194 | hdr->replen += decode_getattr_maxsz; | |
1195 | } | |
1196 | ||
cf8cdbe5 | 1197 | static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 1198 | { |
cf8cdbe5 AA |
1199 | encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], |
1200 | bitmask[1] & nfs4_fattr_bitmap[1], hdr); | |
1da177e4 LT |
1201 | } |
1202 | ||
cf8cdbe5 | 1203 | static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 1204 | { |
dae100c2 FI |
1205 | encode_getattr_three(xdr, |
1206 | bitmask[0] & nfs4_fsinfo_bitmap[0], | |
1207 | bitmask[1] & nfs4_fsinfo_bitmap[1], | |
1208 | bitmask[2] & nfs4_fsinfo_bitmap[2], | |
1209 | hdr); | |
1da177e4 LT |
1210 | } |
1211 | ||
cf8cdbe5 | 1212 | static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
830b8e33 | 1213 | { |
cf8cdbe5 AA |
1214 | encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], |
1215 | bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); | |
830b8e33 MN |
1216 | } |
1217 | ||
cf8cdbe5 | 1218 | static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1219 | { |
8687b63a | 1220 | __be32 *p; |
1da177e4 | 1221 | |
13c65ce9 | 1222 | p = reserve_space(xdr, 4); |
34558513 | 1223 | *p = cpu_to_be32(OP_GETFH); |
d017931c | 1224 | hdr->nops++; |
dadf0c27 | 1225 | hdr->replen += decode_getfh_maxsz; |
1da177e4 LT |
1226 | } |
1227 | ||
cf8cdbe5 | 1228 | static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1229 | { |
8687b63a | 1230 | __be32 *p; |
1da177e4 | 1231 | |
6fdfb0bc TM |
1232 | p = reserve_space(xdr, 4); |
1233 | *p = cpu_to_be32(OP_LINK); | |
1234 | encode_string(xdr, name->len, name->name); | |
d017931c | 1235 | hdr->nops++; |
dadf0c27 | 1236 | hdr->replen += decode_link_maxsz; |
1da177e4 LT |
1237 | } |
1238 | ||
911d1aaf TM |
1239 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
1240 | { | |
1241 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) | |
1242 | return block ? NFS4_READW_LT : NFS4_READ_LT; | |
1243 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; | |
1244 | } | |
1245 | ||
1246 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) | |
1247 | { | |
1248 | if (fl->fl_end == OFFSET_MAX) | |
1249 | return ~(uint64_t)0; | |
1250 | return fl->fl_end - fl->fl_start + 1; | |
1251 | } | |
1252 | ||
daccbded TM |
1253 | static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) |
1254 | { | |
1255 | __be32 *p; | |
1256 | ||
d035c36c | 1257 | p = reserve_space(xdr, 32); |
daccbded | 1258 | p = xdr_encode_hyper(p, lowner->clientid); |
d035c36c | 1259 | *p++ = cpu_to_be32(20); |
daccbded | 1260 | p = xdr_encode_opaque_fixed(p, "lock id:", 8); |
d035c36c | 1261 | *p++ = cpu_to_be32(lowner->s_dev); |
daccbded TM |
1262 | xdr_encode_hyper(p, lowner->id); |
1263 | } | |
1264 | ||
1da177e4 LT |
1265 | /* |
1266 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 | |
1267 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 | |
1268 | */ | |
cf8cdbe5 | 1269 | static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) |
1da177e4 | 1270 | { |
8687b63a | 1271 | __be32 *p; |
1da177e4 | 1272 | |
13c65ce9 | 1273 | p = reserve_space(xdr, 32); |
e75bc1c8 BH |
1274 | *p++ = cpu_to_be32(OP_LOCK); |
1275 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); | |
1276 | *p++ = cpu_to_be32(args->reclaim); | |
b95be5a9 BH |
1277 | p = xdr_encode_hyper(p, args->fl->fl_start); |
1278 | p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); | |
34558513 | 1279 | *p = cpu_to_be32(args->new_lock_owner); |
911d1aaf | 1280 | if (args->new_lock_owner){ |
4ade9821 | 1281 | encode_nfs4_seqid(xdr, args->open_seqid); |
ea9d23f5 | 1282 | encode_nfs4_stateid(xdr, args->open_stateid); |
4ade9821 | 1283 | encode_nfs4_seqid(xdr, args->lock_seqid); |
daccbded | 1284 | encode_lockowner(xdr, &args->lock_owner); |
1da177e4 LT |
1285 | } |
1286 | else { | |
ea9d23f5 | 1287 | encode_nfs4_stateid(xdr, args->lock_stateid); |
4ade9821 | 1288 | encode_nfs4_seqid(xdr, args->lock_seqid); |
1da177e4 | 1289 | } |
d017931c | 1290 | hdr->nops++; |
dadf0c27 | 1291 | hdr->replen += decode_lock_maxsz; |
1da177e4 LT |
1292 | } |
1293 | ||
cf8cdbe5 | 1294 | static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) |
1da177e4 | 1295 | { |
8687b63a | 1296 | __be32 *p; |
1da177e4 | 1297 | |
daccbded | 1298 | p = reserve_space(xdr, 24); |
e75bc1c8 BH |
1299 | *p++ = cpu_to_be32(OP_LOCKT); |
1300 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); | |
b95be5a9 BH |
1301 | p = xdr_encode_hyper(p, args->fl->fl_start); |
1302 | p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); | |
daccbded | 1303 | encode_lockowner(xdr, &args->lock_owner); |
d017931c | 1304 | hdr->nops++; |
dadf0c27 | 1305 | hdr->replen += decode_lockt_maxsz; |
1da177e4 LT |
1306 | } |
1307 | ||
cf8cdbe5 | 1308 | static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) |
1da177e4 | 1309 | { |
8687b63a | 1310 | __be32 *p; |
1da177e4 | 1311 | |
4ade9821 | 1312 | p = reserve_space(xdr, 8); |
e75bc1c8 | 1313 | *p++ = cpu_to_be32(OP_LOCKU); |
4ade9821 TM |
1314 | *p = cpu_to_be32(nfs4_lock_type(args->fl, 0)); |
1315 | encode_nfs4_seqid(xdr, args->seqid); | |
ea9d23f5 TM |
1316 | encode_nfs4_stateid(xdr, args->stateid); |
1317 | p = reserve_space(xdr, 16); | |
b95be5a9 | 1318 | p = xdr_encode_hyper(p, args->fl->fl_start); |
34558513 | 1319 | xdr_encode_hyper(p, nfs4_lock_length(args->fl)); |
d017931c | 1320 | hdr->nops++; |
dadf0c27 | 1321 | hdr->replen += decode_locku_maxsz; |
1da177e4 LT |
1322 | } |
1323 | ||
d3c7b7cc TM |
1324 | static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) |
1325 | { | |
1326 | __be32 *p; | |
1327 | ||
1328 | p = reserve_space(xdr, 4); | |
1329 | *p = cpu_to_be32(OP_RELEASE_LOCKOWNER); | |
1330 | encode_lockowner(xdr, lowner); | |
1331 | hdr->nops++; | |
1332 | hdr->replen += decode_release_lockowner_maxsz; | |
1333 | } | |
1334 | ||
cf8cdbe5 | 1335 | static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1336 | { |
8687b63a | 1337 | __be32 *p; |
1da177e4 | 1338 | |
6fdfb0bc TM |
1339 | p = reserve_space(xdr, 4); |
1340 | *p = cpu_to_be32(OP_LOOKUP); | |
1341 | encode_string(xdr, name->len, name->name); | |
d017931c | 1342 | hdr->nops++; |
dadf0c27 | 1343 | hdr->replen += decode_lookup_maxsz; |
1da177e4 LT |
1344 | } |
1345 | ||
dc0b027d | 1346 | static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) |
1da177e4 | 1347 | { |
8687b63a | 1348 | __be32 *p; |
1da177e4 | 1349 | |
13c65ce9 | 1350 | p = reserve_space(xdr, 8); |
dc0b027d | 1351 | switch (fmode & (FMODE_READ|FMODE_WRITE)) { |
05d564fe | 1352 | case FMODE_READ: |
e75bc1c8 | 1353 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); |
05d564fe AA |
1354 | break; |
1355 | case FMODE_WRITE: | |
e75bc1c8 | 1356 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); |
05d564fe AA |
1357 | break; |
1358 | case FMODE_READ|FMODE_WRITE: | |
e75bc1c8 | 1359 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); |
05d564fe AA |
1360 | break; |
1361 | default: | |
e75bc1c8 | 1362 | *p++ = cpu_to_be32(0); |
1da177e4 | 1363 | } |
34558513 | 1364 | *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ |
1da177e4 LT |
1365 | } |
1366 | ||
1367 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1368 | { | |
8687b63a | 1369 | __be32 *p; |
1da177e4 LT |
1370 | /* |
1371 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, | |
1372 | * owner 4 = 32 | |
1373 | */ | |
4ade9821 TM |
1374 | p = reserve_space(xdr, 4); |
1375 | *p = cpu_to_be32(OP_OPEN); | |
1376 | encode_nfs4_seqid(xdr, arg->seqid); | |
dc0b027d | 1377 | encode_share_access(xdr, arg->fmode); |
d035c36c | 1378 | p = reserve_space(xdr, 32); |
b95be5a9 | 1379 | p = xdr_encode_hyper(p, arg->clientid); |
d035c36c | 1380 | *p++ = cpu_to_be32(20); |
93f0cf25 | 1381 | p = xdr_encode_opaque_fixed(p, "open id:", 8); |
d035c36c | 1382 | *p++ = cpu_to_be32(arg->server->s_dev); |
34558513 | 1383 | xdr_encode_hyper(p, arg->id); |
1da177e4 LT |
1384 | } |
1385 | ||
1386 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1387 | { | |
8687b63a | 1388 | __be32 *p; |
4882ef72 | 1389 | struct nfs_client *clp; |
1da177e4 | 1390 | |
13c65ce9 | 1391 | p = reserve_space(xdr, 4); |
1da177e4 | 1392 | switch(arg->open_flags & O_EXCL) { |
05d564fe | 1393 | case 0: |
34558513 | 1394 | *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); |
05d564fe AA |
1395 | encode_attrs(xdr, arg->u.attrs, arg->server); |
1396 | break; | |
1397 | default: | |
4882ef72 | 1398 | clp = arg->server->nfs_client; |
a4432345 | 1399 | if (clp->cl_mvops->minor_version > 0) { |
4882ef72 AB |
1400 | if (nfs4_has_persistent_session(clp)) { |
1401 | *p = cpu_to_be32(NFS4_CREATE_GUARDED); | |
1402 | encode_attrs(xdr, arg->u.attrs, arg->server); | |
1403 | } else { | |
1404 | struct iattr dummy; | |
1405 | ||
1406 | *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); | |
1407 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1408 | dummy.ia_valid = 0; | |
1409 | encode_attrs(xdr, &dummy, arg->server); | |
1410 | } | |
1411 | } else { | |
1412 | *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); | |
1413 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1414 | } | |
1da177e4 LT |
1415 | } |
1416 | } | |
1417 | ||
1418 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1419 | { | |
8687b63a | 1420 | __be32 *p; |
1da177e4 | 1421 | |
13c65ce9 | 1422 | p = reserve_space(xdr, 4); |
1da177e4 | 1423 | switch (arg->open_flags & O_CREAT) { |
05d564fe | 1424 | case 0: |
34558513 | 1425 | *p = cpu_to_be32(NFS4_OPEN_NOCREATE); |
05d564fe AA |
1426 | break; |
1427 | default: | |
1428 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); | |
34558513 | 1429 | *p = cpu_to_be32(NFS4_OPEN_CREATE); |
05d564fe | 1430 | encode_createmode(xdr, arg); |
1da177e4 LT |
1431 | } |
1432 | } | |
1433 | ||
bd7bf9d5 | 1434 | static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) |
1da177e4 | 1435 | { |
8687b63a | 1436 | __be32 *p; |
1da177e4 | 1437 | |
13c65ce9 | 1438 | p = reserve_space(xdr, 4); |
1da177e4 | 1439 | switch (delegation_type) { |
05d564fe | 1440 | case 0: |
34558513 | 1441 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); |
05d564fe AA |
1442 | break; |
1443 | case FMODE_READ: | |
34558513 | 1444 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); |
05d564fe AA |
1445 | break; |
1446 | case FMODE_WRITE|FMODE_READ: | |
34558513 | 1447 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); |
05d564fe AA |
1448 | break; |
1449 | default: | |
1450 | BUG(); | |
1da177e4 LT |
1451 | } |
1452 | } | |
1453 | ||
1454 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) | |
1455 | { | |
8687b63a | 1456 | __be32 *p; |
1da177e4 | 1457 | |
13c65ce9 | 1458 | p = reserve_space(xdr, 4); |
34558513 | 1459 | *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); |
1da177e4 LT |
1460 | encode_string(xdr, name->len, name->name); |
1461 | } | |
1462 | ||
bd7bf9d5 | 1463 | static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) |
1da177e4 | 1464 | { |
8687b63a | 1465 | __be32 *p; |
1da177e4 | 1466 | |
13c65ce9 | 1467 | p = reserve_space(xdr, 4); |
34558513 | 1468 | *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); |
1da177e4 LT |
1469 | encode_delegation_type(xdr, type); |
1470 | } | |
1471 | ||
1472 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) | |
1473 | { | |
8687b63a | 1474 | __be32 *p; |
1da177e4 | 1475 | |
ea9d23f5 TM |
1476 | p = reserve_space(xdr, 4); |
1477 | *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); | |
1478 | encode_nfs4_stateid(xdr, stateid); | |
1da177e4 LT |
1479 | encode_string(xdr, name->len, name->name); |
1480 | } | |
1481 | ||
cf8cdbe5 | 1482 | static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) |
1da177e4 LT |
1483 | { |
1484 | encode_openhdr(xdr, arg); | |
1485 | encode_opentype(xdr, arg); | |
1486 | switch (arg->claim) { | |
05d564fe AA |
1487 | case NFS4_OPEN_CLAIM_NULL: |
1488 | encode_claim_null(xdr, arg->name); | |
1489 | break; | |
1490 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
1491 | encode_claim_previous(xdr, arg->u.delegation_type); | |
1492 | break; | |
1493 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: | |
1494 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); | |
1495 | break; | |
1496 | default: | |
1497 | BUG(); | |
1da177e4 | 1498 | } |
d017931c | 1499 | hdr->nops++; |
dadf0c27 | 1500 | hdr->replen += decode_open_maxsz; |
1da177e4 LT |
1501 | } |
1502 | ||
cf8cdbe5 | 1503 | static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1504 | { |
8687b63a | 1505 | __be32 *p; |
1da177e4 | 1506 | |
ea9d23f5 TM |
1507 | p = reserve_space(xdr, 4); |
1508 | *p = cpu_to_be32(OP_OPEN_CONFIRM); | |
1509 | encode_nfs4_stateid(xdr, arg->stateid); | |
4ade9821 | 1510 | encode_nfs4_seqid(xdr, arg->seqid); |
d017931c | 1511 | hdr->nops++; |
dadf0c27 | 1512 | hdr->replen += decode_open_confirm_maxsz; |
1da177e4 LT |
1513 | } |
1514 | ||
cf8cdbe5 | 1515 | static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1516 | { |
8687b63a | 1517 | __be32 *p; |
1da177e4 | 1518 | |
ea9d23f5 TM |
1519 | p = reserve_space(xdr, 4); |
1520 | *p = cpu_to_be32(OP_OPEN_DOWNGRADE); | |
1521 | encode_nfs4_stateid(xdr, arg->stateid); | |
4ade9821 | 1522 | encode_nfs4_seqid(xdr, arg->seqid); |
dc0b027d | 1523 | encode_share_access(xdr, arg->fmode); |
d017931c | 1524 | hdr->nops++; |
dadf0c27 | 1525 | hdr->replen += decode_open_downgrade_maxsz; |
1da177e4 LT |
1526 | } |
1527 | ||
cf8cdbe5 | 1528 | static void |
d017931c | 1529 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) |
1da177e4 | 1530 | { |
8687b63a | 1531 | __be32 *p; |
1da177e4 | 1532 | |
6fdfb0bc TM |
1533 | p = reserve_space(xdr, 4); |
1534 | *p = cpu_to_be32(OP_PUTFH); | |
1535 | encode_string(xdr, fh->size, fh->data); | |
d017931c | 1536 | hdr->nops++; |
dadf0c27 | 1537 | hdr->replen += decode_putfh_maxsz; |
1da177e4 LT |
1538 | } |
1539 | ||
cf8cdbe5 | 1540 | static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1541 | { |
05d564fe | 1542 | __be32 *p; |
6c0195a4 | 1543 | |
13c65ce9 | 1544 | p = reserve_space(xdr, 4); |
34558513 | 1545 | *p = cpu_to_be32(OP_PUTROOTFH); |
d017931c | 1546 | hdr->nops++; |
dadf0c27 | 1547 | hdr->replen += decode_putrootfh_maxsz; |
1da177e4 LT |
1548 | } |
1549 | ||
d0b496d2 | 1550 | static void encode_open_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx, int zero_seqid) |
1da177e4 | 1551 | { |
1da177e4 | 1552 | nfs4_stateid stateid; |
1da177e4 | 1553 | |
1da177e4 | 1554 | if (ctx->state != NULL) { |
1e3987c3 | 1555 | nfs4_select_rw_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid); |
89d1ea65 | 1556 | if (zero_seqid) |
2d2f24ad | 1557 | stateid.seqid = 0; |
ea9d23f5 | 1558 | encode_nfs4_stateid(xdr, &stateid); |
1da177e4 | 1559 | } else |
ea9d23f5 | 1560 | encode_nfs4_stateid(xdr, &zero_stateid); |
1da177e4 LT |
1561 | } |
1562 | ||
cf8cdbe5 | 1563 | static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) |
1da177e4 | 1564 | { |
8687b63a | 1565 | __be32 *p; |
1da177e4 | 1566 | |
13c65ce9 | 1567 | p = reserve_space(xdr, 4); |
34558513 | 1568 | *p = cpu_to_be32(OP_READ); |
1da177e4 | 1569 | |
d0b496d2 | 1570 | encode_open_stateid(xdr, args->context, args->lock_context, |
89d1ea65 | 1571 | hdr->minorversion); |
1da177e4 | 1572 | |
13c65ce9 | 1573 | p = reserve_space(xdr, 12); |
b95be5a9 | 1574 | p = xdr_encode_hyper(p, args->offset); |
34558513 | 1575 | *p = cpu_to_be32(args->count); |
d017931c | 1576 | hdr->nops++; |
dadf0c27 | 1577 | hdr->replen += decode_read_maxsz; |
1da177e4 LT |
1578 | } |
1579 | ||
cf8cdbe5 | 1580 | static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1581 | { |
28331a46 TM |
1582 | uint32_t attrs[2] = { |
1583 | FATTR4_WORD0_RDATTR_ERROR, | |
1584 | FATTR4_WORD1_MOUNTED_ON_FILEID, | |
1585 | }; | |
6f7a35bd | 1586 | uint32_t dircount = readdir->count >> 1; |
8687b63a | 1587 | __be32 *p; |
1da177e4 | 1588 | |
82f2e547 BS |
1589 | if (readdir->plus) { |
1590 | attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| | |
28331a46 | 1591 | FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID; |
82f2e547 BS |
1592 | attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| |
1593 | FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| | |
1594 | FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| | |
1595 | FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; | |
6f7a35bd | 1596 | dircount >>= 1; |
82f2e547 | 1597 | } |
28331a46 TM |
1598 | /* Use mounted_on_fileid only if the server supports it */ |
1599 | if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) | |
1600 | attrs[0] |= FATTR4_WORD0_FILEID; | |
82f2e547 | 1601 | |
13c65ce9 | 1602 | p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); |
e75bc1c8 | 1603 | *p++ = cpu_to_be32(OP_READDIR); |
b95be5a9 | 1604 | p = xdr_encode_hyper(p, readdir->cookie); |
93f0cf25 | 1605 | p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); |
6f7a35bd | 1606 | *p++ = cpu_to_be32(dircount); |
e75bc1c8 BH |
1607 | *p++ = cpu_to_be32(readdir->count); |
1608 | *p++ = cpu_to_be32(2); | |
82f2e547 | 1609 | |
e75bc1c8 | 1610 | *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); |
34558513 | 1611 | *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); |
d017931c | 1612 | hdr->nops++; |
dadf0c27 | 1613 | hdr->replen += decode_readdir_maxsz; |
44109241 FI |
1614 | dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", |
1615 | __func__, | |
eadf4598 TM |
1616 | (unsigned long long)readdir->cookie, |
1617 | ((u32 *)readdir->verifier.data)[0], | |
1618 | ((u32 *)readdir->verifier.data)[1], | |
1619 | attrs[0] & readdir->bitmask[0], | |
1620 | attrs[1] & readdir->bitmask[1]); | |
1da177e4 LT |
1621 | } |
1622 | ||
cf8cdbe5 | 1623 | static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1624 | { |
8687b63a | 1625 | __be32 *p; |
1da177e4 | 1626 | |
13c65ce9 | 1627 | p = reserve_space(xdr, 4); |
34558513 | 1628 | *p = cpu_to_be32(OP_READLINK); |
d017931c | 1629 | hdr->nops++; |
dadf0c27 | 1630 | hdr->replen += decode_readlink_maxsz; |
1da177e4 LT |
1631 | } |
1632 | ||
cf8cdbe5 | 1633 | static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1634 | { |
8687b63a | 1635 | __be32 *p; |
1da177e4 | 1636 | |
6fdfb0bc TM |
1637 | p = reserve_space(xdr, 4); |
1638 | *p = cpu_to_be32(OP_REMOVE); | |
1639 | encode_string(xdr, name->len, name->name); | |
d017931c | 1640 | hdr->nops++; |
dadf0c27 | 1641 | hdr->replen += decode_remove_maxsz; |
1da177e4 LT |
1642 | } |
1643 | ||
cf8cdbe5 | 1644 | static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) |
1da177e4 | 1645 | { |
8687b63a | 1646 | __be32 *p; |
1da177e4 | 1647 | |
811652bd BH |
1648 | p = reserve_space(xdr, 4); |
1649 | *p = cpu_to_be32(OP_RENAME); | |
1650 | encode_string(xdr, oldname->len, oldname->name); | |
1651 | encode_string(xdr, newname->len, newname->name); | |
d017931c | 1652 | hdr->nops++; |
dadf0c27 | 1653 | hdr->replen += decode_rename_maxsz; |
1da177e4 LT |
1654 | } |
1655 | ||
bb4dae5e CL |
1656 | static void encode_renew(struct xdr_stream *xdr, clientid4 clid, |
1657 | struct compound_hdr *hdr) | |
1da177e4 | 1658 | { |
8687b63a | 1659 | __be32 *p; |
1da177e4 | 1660 | |
13c65ce9 | 1661 | p = reserve_space(xdr, 12); |
e75bc1c8 | 1662 | *p++ = cpu_to_be32(OP_RENEW); |
bb4dae5e | 1663 | xdr_encode_hyper(p, clid); |
d017931c | 1664 | hdr->nops++; |
dadf0c27 | 1665 | hdr->replen += decode_renew_maxsz; |
1da177e4 LT |
1666 | } |
1667 | ||
cf8cdbe5 | 1668 | static void |
d017931c | 1669 | encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
56ae19f3 | 1670 | { |
8687b63a | 1671 | __be32 *p; |
56ae19f3 | 1672 | |
13c65ce9 | 1673 | p = reserve_space(xdr, 4); |
34558513 | 1674 | *p = cpu_to_be32(OP_RESTOREFH); |
d017931c | 1675 | hdr->nops++; |
dadf0c27 | 1676 | hdr->replen += decode_restorefh_maxsz; |
56ae19f3 TM |
1677 | } |
1678 | ||
9f06c719 | 1679 | static void |
d017931c | 1680 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) |
23ec6965 | 1681 | { |
8687b63a | 1682 | __be32 *p; |
23ec6965 | 1683 | |
ea9d23f5 TM |
1684 | p = reserve_space(xdr, 4); |
1685 | *p = cpu_to_be32(OP_SETATTR); | |
1686 | encode_nfs4_stateid(xdr, &zero_stateid); | |
13c65ce9 | 1687 | p = reserve_space(xdr, 2*4); |
e75bc1c8 | 1688 | *p++ = cpu_to_be32(1); |
34558513 | 1689 | *p = cpu_to_be32(FATTR4_WORD0_ACL); |
9f06c719 | 1690 | BUG_ON(arg->acl_len % 4); |
13c65ce9 | 1691 | p = reserve_space(xdr, 4); |
34558513 | 1692 | *p = cpu_to_be32(arg->acl_len); |
23ec6965 | 1693 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); |
d017931c | 1694 | hdr->nops++; |
dadf0c27 | 1695 | hdr->replen += decode_setacl_maxsz; |
23ec6965 BF |
1696 | } |
1697 | ||
cf8cdbe5 | 1698 | static void |
d017931c | 1699 | encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1700 | { |
8687b63a | 1701 | __be32 *p; |
1da177e4 | 1702 | |
13c65ce9 | 1703 | p = reserve_space(xdr, 4); |
34558513 | 1704 | *p = cpu_to_be32(OP_SAVEFH); |
d017931c | 1705 | hdr->nops++; |
dadf0c27 | 1706 | hdr->replen += decode_savefh_maxsz; |
1da177e4 LT |
1707 | } |
1708 | ||
cf8cdbe5 | 1709 | static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) |
1da177e4 | 1710 | { |
8687b63a | 1711 | __be32 *p; |
6c0195a4 | 1712 | |
ea9d23f5 TM |
1713 | p = reserve_space(xdr, 4); |
1714 | *p = cpu_to_be32(OP_SETATTR); | |
1715 | encode_nfs4_stateid(xdr, &arg->stateid); | |
d017931c | 1716 | hdr->nops++; |
dadf0c27 | 1717 | hdr->replen += decode_setattr_maxsz; |
cf8cdbe5 | 1718 | encode_attrs(xdr, arg->iap, server); |
1da177e4 LT |
1719 | } |
1720 | ||
cf8cdbe5 | 1721 | static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) |
1da177e4 | 1722 | { |
8687b63a | 1723 | __be32 *p; |
1da177e4 | 1724 | |
13c65ce9 | 1725 | p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); |
e75bc1c8 | 1726 | *p++ = cpu_to_be32(OP_SETCLIENTID); |
34558513 | 1727 | xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1728 | |
1729 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); | |
13c65ce9 | 1730 | p = reserve_space(xdr, 4); |
34558513 | 1731 | *p = cpu_to_be32(setclientid->sc_prog); |
1da177e4 LT |
1732 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); |
1733 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); | |
13c65ce9 | 1734 | p = reserve_space(xdr, 4); |
34558513 | 1735 | *p = cpu_to_be32(setclientid->sc_cb_ident); |
d017931c | 1736 | hdr->nops++; |
dadf0c27 | 1737 | hdr->replen += decode_setclientid_maxsz; |
1da177e4 LT |
1738 | } |
1739 | ||
bb8b27e5 | 1740 | static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) |
1da177e4 | 1741 | { |
05d564fe | 1742 | __be32 *p; |
1da177e4 | 1743 | |
13c65ce9 | 1744 | p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); |
e75bc1c8 | 1745 | *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); |
bb8b27e5 TM |
1746 | p = xdr_encode_hyper(p, arg->clientid); |
1747 | xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE); | |
d017931c | 1748 | hdr->nops++; |
dadf0c27 | 1749 | hdr->replen += decode_setclientid_confirm_maxsz; |
1da177e4 LT |
1750 | } |
1751 | ||
cf8cdbe5 | 1752 | static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 1753 | { |
8687b63a | 1754 | __be32 *p; |
1da177e4 | 1755 | |
13c65ce9 | 1756 | p = reserve_space(xdr, 4); |
34558513 | 1757 | *p = cpu_to_be32(OP_WRITE); |
1da177e4 | 1758 | |
d0b496d2 | 1759 | encode_open_stateid(xdr, args->context, args->lock_context, |
89d1ea65 | 1760 | hdr->minorversion); |
1da177e4 | 1761 | |
13c65ce9 | 1762 | p = reserve_space(xdr, 16); |
b95be5a9 | 1763 | p = xdr_encode_hyper(p, args->offset); |
e75bc1c8 | 1764 | *p++ = cpu_to_be32(args->stable); |
34558513 | 1765 | *p = cpu_to_be32(args->count); |
1da177e4 LT |
1766 | |
1767 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); | |
d017931c | 1768 | hdr->nops++; |
dadf0c27 | 1769 | hdr->replen += decode_write_maxsz; |
1da177e4 LT |
1770 | } |
1771 | ||
cf8cdbe5 | 1772 | static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) |
1da177e4 | 1773 | { |
8687b63a | 1774 | __be32 *p; |
1da177e4 | 1775 | |
ea9d23f5 TM |
1776 | p = reserve_space(xdr, 4); |
1777 | *p = cpu_to_be32(OP_DELEGRETURN); | |
1778 | encode_nfs4_stateid(xdr, stateid); | |
d017931c | 1779 | hdr->nops++; |
dadf0c27 | 1780 | hdr->replen += decode_delegreturn_maxsz; |
1da177e4 | 1781 | } |
9b7b9fcc | 1782 | |
5a5ea0d4 BS |
1783 | static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1784 | { | |
5a5ea0d4 BS |
1785 | __be32 *p; |
1786 | ||
6fdfb0bc TM |
1787 | p = reserve_space(xdr, 4); |
1788 | *p = cpu_to_be32(OP_SECINFO); | |
1789 | encode_string(xdr, name->len, name->name); | |
5a5ea0d4 BS |
1790 | hdr->nops++; |
1791 | hdr->replen += decode_secinfo_maxsz; | |
1792 | } | |
1793 | ||
99fe60d0 | 1794 | #if defined(CONFIG_NFS_V4_1) |
9b7b9fcc | 1795 | /* NFSv4.1 operations */ |
99fe60d0 BH |
1796 | static void encode_exchange_id(struct xdr_stream *xdr, |
1797 | struct nfs41_exchange_id_args *args, | |
1798 | struct compound_hdr *hdr) | |
1799 | { | |
1800 | __be32 *p; | |
db8ac8ba WAA |
1801 | char impl_name[NFS4_OPAQUE_LIMIT]; |
1802 | int len = 0; | |
99fe60d0 | 1803 | |
13c65ce9 | 1804 | p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); |
e75bc1c8 | 1805 | *p++ = cpu_to_be32(OP_EXCHANGE_ID); |
34558513 | 1806 | xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); |
99fe60d0 BH |
1807 | |
1808 | encode_string(xdr, args->id_len, args->id); | |
1809 | ||
13c65ce9 | 1810 | p = reserve_space(xdr, 12); |
e75bc1c8 BH |
1811 | *p++ = cpu_to_be32(args->flags); |
1812 | *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ | |
db8ac8ba WAA |
1813 | |
1814 | if (send_implementation_id && | |
1815 | sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 && | |
1816 | sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) | |
1817 | <= NFS4_OPAQUE_LIMIT + 1) | |
1818 | len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s", | |
1819 | utsname()->sysname, utsname()->release, | |
1820 | utsname()->version, utsname()->machine); | |
1821 | ||
1822 | if (len > 0) { | |
1823 | *p = cpu_to_be32(1); /* implementation id array length=1 */ | |
1824 | ||
1825 | encode_string(xdr, | |
1826 | sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1, | |
1827 | CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN); | |
1828 | encode_string(xdr, len, impl_name); | |
1829 | /* just send zeros for nii_date - the date is in nii_name */ | |
1830 | p = reserve_space(xdr, 12); | |
1831 | p = xdr_encode_hyper(p, 0); | |
1832 | *p = cpu_to_be32(0); | |
1833 | } else | |
1834 | *p = cpu_to_be32(0); /* implementation id array length=0 */ | |
1835 | ||
99fe60d0 BH |
1836 | hdr->nops++; |
1837 | hdr->replen += decode_exchange_id_maxsz; | |
1838 | } | |
fc931582 AA |
1839 | |
1840 | static void encode_create_session(struct xdr_stream *xdr, | |
1841 | struct nfs41_create_session_args *args, | |
1842 | struct compound_hdr *hdr) | |
1843 | { | |
1844 | __be32 *p; | |
1845 | char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; | |
1846 | uint32_t len; | |
1847 | struct nfs_client *clp = args->client; | |
8e0d46e1 MS |
1848 | u32 max_resp_sz_cached; |
1849 | ||
1850 | /* | |
1851 | * Assumes OPEN is the biggest non-idempotent compound. | |
1852 | * 2 is the verifier. | |
1853 | */ | |
1854 | max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + | |
1855 | RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; | |
fc931582 | 1856 | |
42edd698 BH |
1857 | len = scnprintf(machine_name, sizeof(machine_name), "%s", |
1858 | clp->cl_ipaddr); | |
fc931582 | 1859 | |
13c65ce9 | 1860 | p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); |
42edd698 | 1861 | *p++ = cpu_to_be32(OP_CREATE_SESSION); |
114f64b5 | 1862 | p = xdr_encode_hyper(p, clp->cl_clientid); |
e75bc1c8 BH |
1863 | *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ |
1864 | *p++ = cpu_to_be32(args->flags); /*flags */ | |
fc931582 | 1865 | |
fc931582 | 1866 | /* Fore Channel */ |
c9c30dd5 | 1867 | *p++ = cpu_to_be32(0); /* header padding size */ |
e75bc1c8 BH |
1868 | *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ |
1869 | *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ | |
8e0d46e1 | 1870 | *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ |
e75bc1c8 BH |
1871 | *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ |
1872 | *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ | |
1873 | *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ | |
fc931582 AA |
1874 | |
1875 | /* Back Channel */ | |
c9c30dd5 | 1876 | *p++ = cpu_to_be32(0); /* header padding size */ |
e75bc1c8 BH |
1877 | *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ |
1878 | *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ | |
1879 | *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ | |
1880 | *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ | |
1881 | *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ | |
1882 | *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ | |
fc931582 | 1883 | |
e75bc1c8 | 1884 | *p++ = cpu_to_be32(args->cb_program); /* cb_program */ |
e75bc1c8 | 1885 | *p++ = cpu_to_be32(1); |
e75bc1c8 | 1886 | *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ |
fc931582 AA |
1887 | |
1888 | /* authsys_parms rfc1831 */ | |
e75bc1c8 | 1889 | *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ |
811652bd | 1890 | p = xdr_encode_opaque(p, machine_name, len); |
e75bc1c8 BH |
1891 | *p++ = cpu_to_be32(0); /* UID */ |
1892 | *p++ = cpu_to_be32(0); /* GID */ | |
34558513 | 1893 | *p = cpu_to_be32(0); /* No more gids */ |
fc931582 AA |
1894 | hdr->nops++; |
1895 | hdr->replen += decode_create_session_maxsz; | |
1896 | } | |
0f3e66c6 AA |
1897 | |
1898 | static void encode_destroy_session(struct xdr_stream *xdr, | |
1899 | struct nfs4_session *session, | |
1900 | struct compound_hdr *hdr) | |
1901 | { | |
1902 | __be32 *p; | |
13c65ce9 | 1903 | p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); |
e75bc1c8 | 1904 | *p++ = cpu_to_be32(OP_DESTROY_SESSION); |
34558513 | 1905 | xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); |
0f3e66c6 AA |
1906 | hdr->nops++; |
1907 | hdr->replen += decode_destroy_session_maxsz; | |
1908 | } | |
18019753 RL |
1909 | |
1910 | static void encode_reclaim_complete(struct xdr_stream *xdr, | |
1911 | struct nfs41_reclaim_complete_args *args, | |
1912 | struct compound_hdr *hdr) | |
1913 | { | |
1914 | __be32 *p; | |
1915 | ||
1916 | p = reserve_space(xdr, 8); | |
1917 | *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); | |
1918 | *p++ = cpu_to_be32(args->one_fs); | |
1919 | hdr->nops++; | |
1920 | hdr->replen += decode_reclaim_complete_maxsz; | |
1921 | } | |
99fe60d0 BH |
1922 | #endif /* CONFIG_NFS_V4_1 */ |
1923 | ||
9b7b9fcc AA |
1924 | static void encode_sequence(struct xdr_stream *xdr, |
1925 | const struct nfs4_sequence_args *args, | |
1926 | struct compound_hdr *hdr) | |
1927 | { | |
1928 | #if defined(CONFIG_NFS_V4_1) | |
1929 | struct nfs4_session *session = args->sa_session; | |
fc01cea9 AA |
1930 | struct nfs4_slot_table *tp; |
1931 | struct nfs4_slot *slot; | |
1932 | __be32 *p; | |
9b7b9fcc AA |
1933 | |
1934 | if (!session) | |
1935 | return; | |
1936 | ||
fc01cea9 AA |
1937 | tp = &session->fc_slot_table; |
1938 | ||
1939 | WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); | |
1940 | slot = tp->slots + args->sa_slotid; | |
1941 | ||
13c65ce9 | 1942 | p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); |
e75bc1c8 | 1943 | *p++ = cpu_to_be32(OP_SEQUENCE); |
fc01cea9 AA |
1944 | |
1945 | /* | |
1946 | * Sessionid + seqid + slotid + max slotid + cache_this | |
1947 | */ | |
1948 | dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " | |
1949 | "max_slotid=%d cache_this=%d\n", | |
1950 | __func__, | |
1951 | ((u32 *)session->sess_id.data)[0], | |
1952 | ((u32 *)session->sess_id.data)[1], | |
1953 | ((u32 *)session->sess_id.data)[2], | |
1954 | ((u32 *)session->sess_id.data)[3], | |
1955 | slot->seq_nr, args->sa_slotid, | |
1956 | tp->highest_used_slotid, args->sa_cache_this); | |
93f0cf25 | 1957 | p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); |
e75bc1c8 BH |
1958 | *p++ = cpu_to_be32(slot->seq_nr); |
1959 | *p++ = cpu_to_be32(args->sa_slotid); | |
1960 | *p++ = cpu_to_be32(tp->highest_used_slotid); | |
34558513 | 1961 | *p = cpu_to_be32(args->sa_cache_this); |
9b7b9fcc AA |
1962 | hdr->nops++; |
1963 | hdr->replen += decode_sequence_maxsz; | |
1964 | #endif /* CONFIG_NFS_V4_1 */ | |
1965 | } | |
1966 | ||
b1f69b75 | 1967 | #ifdef CONFIG_NFS_V4_1 |
7f11d8d3 AA |
1968 | static void |
1969 | encode_getdevicelist(struct xdr_stream *xdr, | |
1970 | const struct nfs4_getdevicelist_args *args, | |
1971 | struct compound_hdr *hdr) | |
1972 | { | |
1973 | __be32 *p; | |
1974 | nfs4_verifier dummy = { | |
1975 | .data = "dummmmmy", | |
1976 | }; | |
1977 | ||
1978 | p = reserve_space(xdr, 20); | |
1979 | *p++ = cpu_to_be32(OP_GETDEVICELIST); | |
1980 | *p++ = cpu_to_be32(args->layoutclass); | |
1981 | *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM); | |
1982 | xdr_encode_hyper(p, 0ULL); /* cookie */ | |
1983 | encode_nfs4_verifier(xdr, &dummy); | |
1984 | hdr->nops++; | |
1985 | hdr->replen += decode_getdevicelist_maxsz; | |
1986 | } | |
1987 | ||
b1f69b75 AA |
1988 | static void |
1989 | encode_getdeviceinfo(struct xdr_stream *xdr, | |
1990 | const struct nfs4_getdeviceinfo_args *args, | |
1991 | struct compound_hdr *hdr) | |
1992 | { | |
1993 | __be32 *p; | |
1994 | ||
1995 | p = reserve_space(xdr, 16 + NFS4_DEVICEID4_SIZE); | |
1996 | *p++ = cpu_to_be32(OP_GETDEVICEINFO); | |
1997 | p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, | |
1998 | NFS4_DEVICEID4_SIZE); | |
1999 | *p++ = cpu_to_be32(args->pdev->layout_type); | |
2000 | *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */ | |
2001 | *p++ = cpu_to_be32(0); /* bitmap length 0 */ | |
2002 | hdr->nops++; | |
2003 | hdr->replen += decode_getdeviceinfo_maxsz; | |
2004 | } | |
2005 | ||
2006 | static void | |
2007 | encode_layoutget(struct xdr_stream *xdr, | |
2008 | const struct nfs4_layoutget_args *args, | |
2009 | struct compound_hdr *hdr) | |
2010 | { | |
b1f69b75 AA |
2011 | __be32 *p; |
2012 | ||
ea9d23f5 | 2013 | p = reserve_space(xdr, 40); |
b1f69b75 AA |
2014 | *p++ = cpu_to_be32(OP_LAYOUTGET); |
2015 | *p++ = cpu_to_be32(0); /* Signal layout available */ | |
2016 | *p++ = cpu_to_be32(args->type); | |
2017 | *p++ = cpu_to_be32(args->range.iomode); | |
2018 | p = xdr_encode_hyper(p, args->range.offset); | |
2019 | p = xdr_encode_hyper(p, args->range.length); | |
2020 | p = xdr_encode_hyper(p, args->minlength); | |
ea9d23f5 TM |
2021 | encode_nfs4_stateid(xdr, &args->stateid); |
2022 | p = reserve_space(xdr, 4); | |
b1f69b75 AA |
2023 | *p = cpu_to_be32(args->maxcount); |
2024 | ||
2025 | dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", | |
2026 | __func__, | |
2027 | args->type, | |
2028 | args->range.iomode, | |
2029 | (unsigned long)args->range.offset, | |
2030 | (unsigned long)args->range.length, | |
2031 | args->maxcount); | |
2032 | hdr->nops++; | |
2033 | hdr->replen += decode_layoutget_maxsz; | |
2034 | } | |
863a3c6c AA |
2035 | |
2036 | static int | |
2037 | encode_layoutcommit(struct xdr_stream *xdr, | |
ac7db726 | 2038 | struct inode *inode, |
863a3c6c AA |
2039 | const struct nfs4_layoutcommit_args *args, |
2040 | struct compound_hdr *hdr) | |
2041 | { | |
2042 | __be32 *p; | |
2043 | ||
2044 | dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, | |
2045 | NFS_SERVER(args->inode)->pnfs_curr_ld->id); | |
2046 | ||
ea9d23f5 | 2047 | p = reserve_space(xdr, 24); |
863a3c6c AA |
2048 | *p++ = cpu_to_be32(OP_LAYOUTCOMMIT); |
2049 | /* Only whole file layouts */ | |
2050 | p = xdr_encode_hyper(p, 0); /* offset */ | |
3557c6c3 | 2051 | p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */ |
ea9d23f5 TM |
2052 | *p = cpu_to_be32(0); /* reclaim */ |
2053 | encode_nfs4_stateid(xdr, &args->stateid); | |
2054 | p = reserve_space(xdr, 20); | |
863a3c6c AA |
2055 | *p++ = cpu_to_be32(1); /* newoffset = TRUE */ |
2056 | p = xdr_encode_hyper(p, args->lastbytewritten); | |
2057 | *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ | |
2058 | *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ | |
ac7db726 BH |
2059 | |
2060 | if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) | |
2061 | NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit( | |
2062 | NFS_I(inode)->layout, xdr, args); | |
2063 | else { | |
2064 | p = reserve_space(xdr, 4); | |
2065 | *p = cpu_to_be32(0); /* no layout-type payload */ | |
2066 | } | |
863a3c6c AA |
2067 | |
2068 | hdr->nops++; | |
2069 | hdr->replen += decode_layoutcommit_maxsz; | |
2070 | return 0; | |
2071 | } | |
cbe82603 BH |
2072 | |
2073 | static void | |
2074 | encode_layoutreturn(struct xdr_stream *xdr, | |
2075 | const struct nfs4_layoutreturn_args *args, | |
2076 | struct compound_hdr *hdr) | |
2077 | { | |
2078 | __be32 *p; | |
2079 | ||
2080 | p = reserve_space(xdr, 20); | |
2081 | *p++ = cpu_to_be32(OP_LAYOUTRETURN); | |
2082 | *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ | |
2083 | *p++ = cpu_to_be32(args->layout_type); | |
2084 | *p++ = cpu_to_be32(IOMODE_ANY); | |
2085 | *p = cpu_to_be32(RETURN_FILE); | |
ea9d23f5 | 2086 | p = reserve_space(xdr, 16); |
cbe82603 BH |
2087 | p = xdr_encode_hyper(p, 0); |
2088 | p = xdr_encode_hyper(p, NFS4_MAX_UINT64); | |
2089 | spin_lock(&args->inode->i_lock); | |
ea9d23f5 | 2090 | encode_nfs4_stateid(xdr, &args->stateid); |
cbe82603 | 2091 | spin_unlock(&args->inode->i_lock); |
04a55549 AA |
2092 | if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) { |
2093 | NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn( | |
2094 | NFS_I(args->inode)->layout, xdr, args); | |
2095 | } else { | |
2096 | p = reserve_space(xdr, 4); | |
2097 | *p = cpu_to_be32(0); | |
2098 | } | |
cbe82603 BH |
2099 | hdr->nops++; |
2100 | hdr->replen += decode_layoutreturn_maxsz; | |
2101 | } | |
fca78d6d BS |
2102 | |
2103 | static int | |
2104 | encode_secinfo_no_name(struct xdr_stream *xdr, | |
2105 | const struct nfs41_secinfo_no_name_args *args, | |
2106 | struct compound_hdr *hdr) | |
2107 | { | |
2108 | __be32 *p; | |
2109 | p = reserve_space(xdr, 8); | |
2110 | *p++ = cpu_to_be32(OP_SECINFO_NO_NAME); | |
2111 | *p++ = cpu_to_be32(args->style); | |
2112 | hdr->nops++; | |
2113 | hdr->replen += decode_secinfo_no_name_maxsz; | |
2114 | return 0; | |
2115 | } | |
7d974794 BS |
2116 | |
2117 | static void encode_test_stateid(struct xdr_stream *xdr, | |
2118 | struct nfs41_test_stateid_args *args, | |
2119 | struct compound_hdr *hdr) | |
2120 | { | |
2121 | __be32 *p; | |
2122 | ||
ea9d23f5 | 2123 | p = reserve_space(xdr, 8); |
7d974794 | 2124 | *p++ = cpu_to_be32(OP_TEST_STATEID); |
ea9d23f5 TM |
2125 | *p = cpu_to_be32(1); |
2126 | encode_nfs4_stateid(xdr, args->stateid); | |
7d974794 BS |
2127 | hdr->nops++; |
2128 | hdr->replen += decode_test_stateid_maxsz; | |
2129 | } | |
9aeda35f BS |
2130 | |
2131 | static void encode_free_stateid(struct xdr_stream *xdr, | |
2132 | struct nfs41_free_stateid_args *args, | |
2133 | struct compound_hdr *hdr) | |
2134 | { | |
2135 | __be32 *p; | |
ea9d23f5 TM |
2136 | p = reserve_space(xdr, 4); |
2137 | *p = cpu_to_be32(OP_FREE_STATEID); | |
2138 | encode_nfs4_stateid(xdr, args->stateid); | |
9aeda35f BS |
2139 | hdr->nops++; |
2140 | hdr->replen += decode_free_stateid_maxsz; | |
2141 | } | |
b1f69b75 AA |
2142 | #endif /* CONFIG_NFS_V4_1 */ |
2143 | ||
1da177e4 LT |
2144 | /* |
2145 | * END OF "GENERIC" ENCODE ROUTINES. | |
2146 | */ | |
2147 | ||
66cc0429 BH |
2148 | static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) |
2149 | { | |
2150 | #if defined(CONFIG_NFS_V4_1) | |
2151 | if (args->sa_session) | |
a4432345 | 2152 | return args->sa_session->clp->cl_mvops->minor_version; |
66cc0429 BH |
2153 | #endif /* CONFIG_NFS_V4_1 */ |
2154 | return 0; | |
2155 | } | |
2156 | ||
1da177e4 LT |
2157 | /* |
2158 | * Encode an ACCESS request | |
2159 | */ | |
9f06c719 CL |
2160 | static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, |
2161 | const struct nfs4_accessargs *args) | |
1da177e4 | 2162 | { |
1da177e4 | 2163 | struct compound_hdr hdr = { |
66cc0429 | 2164 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2165 | }; |
1da177e4 | 2166 | |
9f06c719 CL |
2167 | encode_compound_hdr(xdr, req, &hdr); |
2168 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2169 | encode_putfh(xdr, args->fh, &hdr); | |
2170 | encode_access(xdr, args->access, &hdr); | |
2171 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2172 | encode_nops(&hdr); |
1da177e4 LT |
2173 | } |
2174 | ||
2175 | /* | |
2176 | * Encode LOOKUP request | |
2177 | */ | |
9f06c719 CL |
2178 | static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, |
2179 | const struct nfs4_lookup_arg *args) | |
1da177e4 | 2180 | { |
1da177e4 | 2181 | struct compound_hdr hdr = { |
66cc0429 | 2182 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2183 | }; |
1da177e4 | 2184 | |
9f06c719 CL |
2185 | encode_compound_hdr(xdr, req, &hdr); |
2186 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2187 | encode_putfh(xdr, args->dir_fh, &hdr); | |
2188 | encode_lookup(xdr, args->name, &hdr); | |
2189 | encode_getfh(xdr, &hdr); | |
2190 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2191 | encode_nops(&hdr); |
1da177e4 LT |
2192 | } |
2193 | ||
2194 | /* | |
2195 | * Encode LOOKUP_ROOT request | |
2196 | */ | |
9f06c719 CL |
2197 | static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, |
2198 | struct xdr_stream *xdr, | |
2199 | const struct nfs4_lookup_root_arg *args) | |
1da177e4 | 2200 | { |
1da177e4 | 2201 | struct compound_hdr hdr = { |
66cc0429 | 2202 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2203 | }; |
1da177e4 | 2204 | |
9f06c719 CL |
2205 | encode_compound_hdr(xdr, req, &hdr); |
2206 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2207 | encode_putrootfh(xdr, &hdr); | |
2208 | encode_getfh(xdr, &hdr); | |
2209 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2210 | encode_nops(&hdr); |
1da177e4 LT |
2211 | } |
2212 | ||
2213 | /* | |
2214 | * Encode REMOVE request | |
2215 | */ | |
9f06c719 CL |
2216 | static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, |
2217 | const struct nfs_removeargs *args) | |
1da177e4 | 2218 | { |
1da177e4 | 2219 | struct compound_hdr hdr = { |
66cc0429 | 2220 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2221 | }; |
1da177e4 | 2222 | |
9f06c719 CL |
2223 | encode_compound_hdr(xdr, req, &hdr); |
2224 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2225 | encode_putfh(xdr, args->fh, &hdr); | |
2226 | encode_remove(xdr, &args->name, &hdr); | |
2227 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2228 | encode_nops(&hdr); |
1da177e4 LT |
2229 | } |
2230 | ||
2231 | /* | |
2232 | * Encode RENAME request | |
2233 | */ | |
9f06c719 CL |
2234 | static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, |
2235 | const struct nfs_renameargs *args) | |
1da177e4 | 2236 | { |
1da177e4 | 2237 | struct compound_hdr hdr = { |
66cc0429 | 2238 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2239 | }; |
1da177e4 | 2240 | |
9f06c719 CL |
2241 | encode_compound_hdr(xdr, req, &hdr); |
2242 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2243 | encode_putfh(xdr, args->old_dir, &hdr); | |
2244 | encode_savefh(xdr, &hdr); | |
2245 | encode_putfh(xdr, args->new_dir, &hdr); | |
2246 | encode_rename(xdr, args->old_name, args->new_name, &hdr); | |
2247 | encode_getfattr(xdr, args->bitmask, &hdr); | |
2248 | encode_restorefh(xdr, &hdr); | |
2249 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2250 | encode_nops(&hdr); |
1da177e4 LT |
2251 | } |
2252 | ||
2253 | /* | |
2254 | * Encode LINK request | |
2255 | */ | |
9f06c719 CL |
2256 | static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, |
2257 | const struct nfs4_link_arg *args) | |
1da177e4 | 2258 | { |
1da177e4 | 2259 | struct compound_hdr hdr = { |
66cc0429 | 2260 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2261 | }; |
1da177e4 | 2262 | |
9f06c719 CL |
2263 | encode_compound_hdr(xdr, req, &hdr); |
2264 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2265 | encode_putfh(xdr, args->fh, &hdr); | |
2266 | encode_savefh(xdr, &hdr); | |
2267 | encode_putfh(xdr, args->dir_fh, &hdr); | |
2268 | encode_link(xdr, args->name, &hdr); | |
2269 | encode_getfattr(xdr, args->bitmask, &hdr); | |
2270 | encode_restorefh(xdr, &hdr); | |
2271 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2272 | encode_nops(&hdr); |
1da177e4 LT |
2273 | } |
2274 | ||
2275 | /* | |
2276 | * Encode CREATE request | |
2277 | */ | |
9f06c719 CL |
2278 | static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, |
2279 | const struct nfs4_create_arg *args) | |
1da177e4 | 2280 | { |
1da177e4 | 2281 | struct compound_hdr hdr = { |
66cc0429 | 2282 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2283 | }; |
1da177e4 | 2284 | |
9f06c719 CL |
2285 | encode_compound_hdr(xdr, req, &hdr); |
2286 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2287 | encode_putfh(xdr, args->dir_fh, &hdr); | |
2288 | encode_savefh(xdr, &hdr); | |
2289 | encode_create(xdr, args, &hdr); | |
2290 | encode_getfh(xdr, &hdr); | |
2291 | encode_getfattr(xdr, args->bitmask, &hdr); | |
2292 | encode_restorefh(xdr, &hdr); | |
2293 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2294 | encode_nops(&hdr); |
1da177e4 LT |
2295 | } |
2296 | ||
2297 | /* | |
2298 | * Encode SYMLINK request | |
2299 | */ | |
9f06c719 CL |
2300 | static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, |
2301 | const struct nfs4_create_arg *args) | |
1da177e4 | 2302 | { |
9f06c719 | 2303 | nfs4_xdr_enc_create(req, xdr, args); |
1da177e4 LT |
2304 | } |
2305 | ||
2306 | /* | |
2307 | * Encode GETATTR request | |
2308 | */ | |
9f06c719 CL |
2309 | static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, |
2310 | const struct nfs4_getattr_arg *args) | |
1da177e4 | 2311 | { |
1da177e4 | 2312 | struct compound_hdr hdr = { |
66cc0429 | 2313 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2314 | }; |
1da177e4 | 2315 | |
9f06c719 CL |
2316 | encode_compound_hdr(xdr, req, &hdr); |
2317 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2318 | encode_putfh(xdr, args->fh, &hdr); | |
2319 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2320 | encode_nops(&hdr); |
1da177e4 LT |
2321 | } |
2322 | ||
2323 | /* | |
2324 | * Encode a CLOSE request | |
2325 | */ | |
9f06c719 CL |
2326 | static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, |
2327 | struct nfs_closeargs *args) | |
1da177e4 | 2328 | { |
05d564fe | 2329 | struct compound_hdr hdr = { |
66cc0429 | 2330 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 2331 | }; |
05d564fe | 2332 | |
9f06c719 CL |
2333 | encode_compound_hdr(xdr, req, &hdr); |
2334 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2335 | encode_putfh(xdr, args->fh, &hdr); | |
2336 | encode_close(xdr, args, &hdr); | |
2337 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2338 | encode_nops(&hdr); |
1da177e4 LT |
2339 | } |
2340 | ||
2341 | /* | |
2342 | * Encode an OPEN request | |
2343 | */ | |
9f06c719 CL |
2344 | static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, |
2345 | struct nfs_openargs *args) | |
1da177e4 | 2346 | { |
1da177e4 | 2347 | struct compound_hdr hdr = { |
66cc0429 | 2348 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2349 | }; |
1da177e4 | 2350 | |
9f06c719 CL |
2351 | encode_compound_hdr(xdr, req, &hdr); |
2352 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2353 | encode_putfh(xdr, args->fh, &hdr); | |
2354 | encode_savefh(xdr, &hdr); | |
2355 | encode_open(xdr, args, &hdr); | |
2356 | encode_getfh(xdr, &hdr); | |
2357 | encode_getfattr(xdr, args->bitmask, &hdr); | |
2358 | encode_restorefh(xdr, &hdr); | |
6926afd1 | 2359 | encode_getfattr(xdr, args->dir_bitmask, &hdr); |
d017931c | 2360 | encode_nops(&hdr); |
1da177e4 LT |
2361 | } |
2362 | ||
2363 | /* | |
2364 | * Encode an OPEN_CONFIRM request | |
2365 | */ | |
9f06c719 CL |
2366 | static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, |
2367 | struct xdr_stream *xdr, | |
2368 | struct nfs_open_confirmargs *args) | |
1da177e4 | 2369 | { |
1da177e4 | 2370 | struct compound_hdr hdr = { |
d017931c | 2371 | .nops = 0, |
1da177e4 | 2372 | }; |
1da177e4 | 2373 | |
9f06c719 CL |
2374 | encode_compound_hdr(xdr, req, &hdr); |
2375 | encode_putfh(xdr, args->fh, &hdr); | |
2376 | encode_open_confirm(xdr, args, &hdr); | |
d017931c | 2377 | encode_nops(&hdr); |
1da177e4 LT |
2378 | } |
2379 | ||
2380 | /* | |
2381 | * Encode an OPEN request with no attributes. | |
2382 | */ | |
9f06c719 CL |
2383 | static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, |
2384 | struct xdr_stream *xdr, | |
2385 | struct nfs_openargs *args) | |
1da177e4 | 2386 | { |
1da177e4 | 2387 | struct compound_hdr hdr = { |
66cc0429 | 2388 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2389 | }; |
1da177e4 | 2390 | |
9f06c719 CL |
2391 | encode_compound_hdr(xdr, req, &hdr); |
2392 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2393 | encode_putfh(xdr, args->fh, &hdr); | |
2394 | encode_open(xdr, args, &hdr); | |
2395 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2396 | encode_nops(&hdr); |
1da177e4 LT |
2397 | } |
2398 | ||
2399 | /* | |
2400 | * Encode an OPEN_DOWNGRADE request | |
2401 | */ | |
9f06c719 CL |
2402 | static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, |
2403 | struct xdr_stream *xdr, | |
2404 | struct nfs_closeargs *args) | |
1da177e4 | 2405 | { |
1da177e4 | 2406 | struct compound_hdr hdr = { |
66cc0429 | 2407 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2408 | }; |
1da177e4 | 2409 | |
9f06c719 CL |
2410 | encode_compound_hdr(xdr, req, &hdr); |
2411 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2412 | encode_putfh(xdr, args->fh, &hdr); | |
2413 | encode_open_downgrade(xdr, args, &hdr); | |
2414 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2415 | encode_nops(&hdr); |
1da177e4 LT |
2416 | } |
2417 | ||
2418 | /* | |
2419 | * Encode a LOCK request | |
2420 | */ | |
9f06c719 CL |
2421 | static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, |
2422 | struct nfs_lock_args *args) | |
1da177e4 | 2423 | { |
1da177e4 | 2424 | struct compound_hdr hdr = { |
66cc0429 | 2425 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2426 | }; |
1da177e4 | 2427 | |
9f06c719 CL |
2428 | encode_compound_hdr(xdr, req, &hdr); |
2429 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2430 | encode_putfh(xdr, args->fh, &hdr); | |
2431 | encode_lock(xdr, args, &hdr); | |
d017931c | 2432 | encode_nops(&hdr); |
1da177e4 LT |
2433 | } |
2434 | ||
2435 | /* | |
2436 | * Encode a LOCKT request | |
2437 | */ | |
9f06c719 CL |
2438 | static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, |
2439 | struct nfs_lockt_args *args) | |
1da177e4 | 2440 | { |
1da177e4 | 2441 | struct compound_hdr hdr = { |
66cc0429 | 2442 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2443 | }; |
1da177e4 | 2444 | |
9f06c719 CL |
2445 | encode_compound_hdr(xdr, req, &hdr); |
2446 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2447 | encode_putfh(xdr, args->fh, &hdr); | |
2448 | encode_lockt(xdr, args, &hdr); | |
d017931c | 2449 | encode_nops(&hdr); |
1da177e4 LT |
2450 | } |
2451 | ||
2452 | /* | |
2453 | * Encode a LOCKU request | |
2454 | */ | |
9f06c719 CL |
2455 | static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, |
2456 | struct nfs_locku_args *args) | |
1da177e4 | 2457 | { |
1da177e4 | 2458 | struct compound_hdr hdr = { |
66cc0429 | 2459 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2460 | }; |
1da177e4 | 2461 | |
9f06c719 CL |
2462 | encode_compound_hdr(xdr, req, &hdr); |
2463 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2464 | encode_putfh(xdr, args->fh, &hdr); | |
2465 | encode_locku(xdr, args, &hdr); | |
d017931c | 2466 | encode_nops(&hdr); |
1da177e4 LT |
2467 | } |
2468 | ||
9f06c719 CL |
2469 | static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, |
2470 | struct xdr_stream *xdr, | |
2471 | struct nfs_release_lockowner_args *args) | |
d3c7b7cc | 2472 | { |
d3c7b7cc TM |
2473 | struct compound_hdr hdr = { |
2474 | .minorversion = 0, | |
2475 | }; | |
2476 | ||
9f06c719 CL |
2477 | encode_compound_hdr(xdr, req, &hdr); |
2478 | encode_release_lockowner(xdr, &args->lock_owner, &hdr); | |
d3c7b7cc | 2479 | encode_nops(&hdr); |
d3c7b7cc TM |
2480 | } |
2481 | ||
1da177e4 LT |
2482 | /* |
2483 | * Encode a READLINK request | |
2484 | */ | |
9f06c719 CL |
2485 | static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, |
2486 | const struct nfs4_readlink *args) | |
1da177e4 | 2487 | { |
1da177e4 | 2488 | struct compound_hdr hdr = { |
66cc0429 | 2489 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2490 | }; |
1da177e4 | 2491 | |
9f06c719 CL |
2492 | encode_compound_hdr(xdr, req, &hdr); |
2493 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2494 | encode_putfh(xdr, args->fh, &hdr); | |
2495 | encode_readlink(xdr, args, req, &hdr); | |
e3a535e1 | 2496 | |
28f56694 | 2497 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
e3a535e1 | 2498 | args->pgbase, args->pglen); |
d017931c | 2499 | encode_nops(&hdr); |
1da177e4 LT |
2500 | } |
2501 | ||
2502 | /* | |
2503 | * Encode a READDIR request | |
2504 | */ | |
9f06c719 CL |
2505 | static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, |
2506 | const struct nfs4_readdir_arg *args) | |
1da177e4 | 2507 | { |
1da177e4 | 2508 | struct compound_hdr hdr = { |
66cc0429 | 2509 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2510 | }; |
1da177e4 | 2511 | |
9f06c719 CL |
2512 | encode_compound_hdr(xdr, req, &hdr); |
2513 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2514 | encode_putfh(xdr, args->fh, &hdr); | |
2515 | encode_readdir(xdr, args, req, &hdr); | |
d6ac02df | 2516 | |
28f56694 | 2517 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
d6ac02df TM |
2518 | args->pgbase, args->count); |
2519 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", | |
28f56694 | 2520 | __func__, hdr.replen << 2, args->pages, |
d6ac02df | 2521 | args->pgbase, args->count); |
d017931c | 2522 | encode_nops(&hdr); |
1da177e4 LT |
2523 | } |
2524 | ||
2525 | /* | |
2526 | * Encode a READ request | |
2527 | */ | |
9f06c719 CL |
2528 | static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, |
2529 | struct nfs_readargs *args) | |
1da177e4 | 2530 | { |
1da177e4 | 2531 | struct compound_hdr hdr = { |
66cc0429 | 2532 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2533 | }; |
1da177e4 | 2534 | |
9f06c719 CL |
2535 | encode_compound_hdr(xdr, req, &hdr); |
2536 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2537 | encode_putfh(xdr, args->fh, &hdr); | |
2538 | encode_read(xdr, args, &hdr); | |
1da177e4 | 2539 | |
28f56694 | 2540 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, |
1da177e4 | 2541 | args->pages, args->pgbase, args->count); |
4f22ccc3 | 2542 | req->rq_rcv_buf.flags |= XDRBUF_READ; |
d017931c | 2543 | encode_nops(&hdr); |
1da177e4 LT |
2544 | } |
2545 | ||
2546 | /* | |
2547 | * Encode an SETATTR request | |
2548 | */ | |
9f06c719 CL |
2549 | static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, |
2550 | struct nfs_setattrargs *args) | |
1da177e4 | 2551 | { |
05d564fe | 2552 | struct compound_hdr hdr = { |
66cc0429 | 2553 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 2554 | }; |
05d564fe | 2555 | |
9f06c719 CL |
2556 | encode_compound_hdr(xdr, req, &hdr); |
2557 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2558 | encode_putfh(xdr, args->fh, &hdr); | |
2559 | encode_setattr(xdr, args, args->server, &hdr); | |
2560 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2561 | encode_nops(&hdr); |
1da177e4 LT |
2562 | } |
2563 | ||
029d105e BF |
2564 | /* |
2565 | * Encode a GETACL request | |
2566 | */ | |
9f06c719 CL |
2567 | static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, |
2568 | struct nfs_getaclargs *args) | |
029d105e | 2569 | { |
029d105e | 2570 | struct compound_hdr hdr = { |
66cc0429 | 2571 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
029d105e | 2572 | }; |
28f56694 | 2573 | uint32_t replen; |
029d105e | 2574 | |
9f06c719 CL |
2575 | encode_compound_hdr(xdr, req, &hdr); |
2576 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2577 | encode_putfh(xdr, args->fh, &hdr); | |
bf118a34 | 2578 | replen = hdr.replen + op_decode_hdr_maxsz + 1; |
9f06c719 | 2579 | encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); |
cf8cdbe5 | 2580 | |
28f56694 | 2581 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, |
029d105e | 2582 | args->acl_pages, args->acl_pgbase, args->acl_len); |
bf118a34 | 2583 | |
d017931c | 2584 | encode_nops(&hdr); |
029d105e BF |
2585 | } |
2586 | ||
1da177e4 LT |
2587 | /* |
2588 | * Encode a WRITE request | |
2589 | */ | |
9f06c719 CL |
2590 | static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, |
2591 | struct nfs_writeargs *args) | |
1da177e4 | 2592 | { |
1da177e4 | 2593 | struct compound_hdr hdr = { |
66cc0429 | 2594 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2595 | }; |
1da177e4 | 2596 | |
9f06c719 CL |
2597 | encode_compound_hdr(xdr, req, &hdr); |
2598 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2599 | encode_putfh(xdr, args->fh, &hdr); | |
2600 | encode_write(xdr, args, &hdr); | |
4f22ccc3 | 2601 | req->rq_snd_buf.flags |= XDRBUF_WRITE; |
7ffd1064 FI |
2602 | if (args->bitmask) |
2603 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2604 | encode_nops(&hdr); |
1da177e4 LT |
2605 | } |
2606 | ||
2607 | /* | |
2608 | * a COMMIT request | |
2609 | */ | |
9f06c719 CL |
2610 | static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, |
2611 | struct nfs_writeargs *args) | |
1da177e4 | 2612 | { |
1da177e4 | 2613 | struct compound_hdr hdr = { |
66cc0429 | 2614 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2615 | }; |
1da177e4 | 2616 | |
9f06c719 CL |
2617 | encode_compound_hdr(xdr, req, &hdr); |
2618 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2619 | encode_putfh(xdr, args->fh, &hdr); | |
2620 | encode_commit(xdr, args, &hdr); | |
988b6dce FI |
2621 | if (args->bitmask) |
2622 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2623 | encode_nops(&hdr); |
1da177e4 LT |
2624 | } |
2625 | ||
2626 | /* | |
2627 | * FSINFO request | |
2628 | */ | |
9f06c719 CL |
2629 | static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, |
2630 | struct nfs4_fsinfo_arg *args) | |
1da177e4 | 2631 | { |
1da177e4 | 2632 | struct compound_hdr hdr = { |
66cc0429 | 2633 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2634 | }; |
1da177e4 | 2635 | |
9f06c719 CL |
2636 | encode_compound_hdr(xdr, req, &hdr); |
2637 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2638 | encode_putfh(xdr, args->fh, &hdr); | |
2639 | encode_fsinfo(xdr, args->bitmask, &hdr); | |
d017931c | 2640 | encode_nops(&hdr); |
1da177e4 LT |
2641 | } |
2642 | ||
2643 | /* | |
2644 | * a PATHCONF request | |
2645 | */ | |
9f06c719 CL |
2646 | static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, |
2647 | const struct nfs4_pathconf_arg *args) | |
1da177e4 | 2648 | { |
1da177e4 | 2649 | struct compound_hdr hdr = { |
66cc0429 | 2650 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2651 | }; |
1da177e4 | 2652 | |
9f06c719 CL |
2653 | encode_compound_hdr(xdr, req, &hdr); |
2654 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2655 | encode_putfh(xdr, args->fh, &hdr); | |
2656 | encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], | |
cf8cdbe5 | 2657 | &hdr); |
d017931c | 2658 | encode_nops(&hdr); |
1da177e4 LT |
2659 | } |
2660 | ||
2661 | /* | |
2662 | * a STATFS request | |
2663 | */ | |
9f06c719 CL |
2664 | static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, |
2665 | const struct nfs4_statfs_arg *args) | |
1da177e4 | 2666 | { |
1da177e4 | 2667 | struct compound_hdr hdr = { |
66cc0429 | 2668 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2669 | }; |
1da177e4 | 2670 | |
9f06c719 CL |
2671 | encode_compound_hdr(xdr, req, &hdr); |
2672 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2673 | encode_putfh(xdr, args->fh, &hdr); | |
2674 | encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], | |
cf8cdbe5 | 2675 | args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); |
d017931c | 2676 | encode_nops(&hdr); |
1da177e4 LT |
2677 | } |
2678 | ||
2679 | /* | |
2680 | * GETATTR_BITMAP request | |
2681 | */ | |
9f06c719 CL |
2682 | static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, |
2683 | struct xdr_stream *xdr, | |
2684 | struct nfs4_server_caps_arg *args) | |
1da177e4 | 2685 | { |
1da177e4 | 2686 | struct compound_hdr hdr = { |
66cc0429 | 2687 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2688 | }; |
1da177e4 | 2689 | |
9f06c719 CL |
2690 | encode_compound_hdr(xdr, req, &hdr); |
2691 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2692 | encode_putfh(xdr, args->fhandle, &hdr); | |
2693 | encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| | |
264e6351 | 2694 | FATTR4_WORD0_FH_EXPIRE_TYPE| |
cf8cdbe5 AA |
2695 | FATTR4_WORD0_LINK_SUPPORT| |
2696 | FATTR4_WORD0_SYMLINK_SUPPORT| | |
2697 | FATTR4_WORD0_ACLSUPPORT, &hdr); | |
d017931c | 2698 | encode_nops(&hdr); |
1da177e4 LT |
2699 | } |
2700 | ||
2701 | /* | |
2702 | * a RENEW request | |
2703 | */ | |
9f06c719 CL |
2704 | static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, |
2705 | struct nfs_client *clp) | |
1da177e4 | 2706 | { |
1da177e4 | 2707 | struct compound_hdr hdr = { |
d017931c | 2708 | .nops = 0, |
1da177e4 LT |
2709 | }; |
2710 | ||
9f06c719 | 2711 | encode_compound_hdr(xdr, req, &hdr); |
bb4dae5e | 2712 | encode_renew(xdr, clp->cl_clientid, &hdr); |
d017931c | 2713 | encode_nops(&hdr); |
1da177e4 LT |
2714 | } |
2715 | ||
2716 | /* | |
2717 | * a SETCLIENTID request | |
2718 | */ | |
9f06c719 CL |
2719 | static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, |
2720 | struct xdr_stream *xdr, | |
2721 | struct nfs4_setclientid *sc) | |
1da177e4 | 2722 | { |
1da177e4 | 2723 | struct compound_hdr hdr = { |
d017931c | 2724 | .nops = 0, |
1da177e4 LT |
2725 | }; |
2726 | ||
9f06c719 CL |
2727 | encode_compound_hdr(xdr, req, &hdr); |
2728 | encode_setclientid(xdr, sc, &hdr); | |
d017931c | 2729 | encode_nops(&hdr); |
1da177e4 LT |
2730 | } |
2731 | ||
2732 | /* | |
2733 | * a SETCLIENTID_CONFIRM request | |
2734 | */ | |
9f06c719 CL |
2735 | static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, |
2736 | struct xdr_stream *xdr, | |
2737 | struct nfs4_setclientid_res *arg) | |
1da177e4 | 2738 | { |
1da177e4 | 2739 | struct compound_hdr hdr = { |
d017931c | 2740 | .nops = 0, |
1da177e4 | 2741 | }; |
dae100c2 | 2742 | const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; |
1da177e4 | 2743 | |
9f06c719 CL |
2744 | encode_compound_hdr(xdr, req, &hdr); |
2745 | encode_setclientid_confirm(xdr, arg, &hdr); | |
2746 | encode_putrootfh(xdr, &hdr); | |
2747 | encode_fsinfo(xdr, lease_bitmap, &hdr); | |
d017931c | 2748 | encode_nops(&hdr); |
1da177e4 LT |
2749 | } |
2750 | ||
2751 | /* | |
2752 | * DELEGRETURN request | |
2753 | */ | |
9f06c719 CL |
2754 | static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, |
2755 | struct xdr_stream *xdr, | |
2756 | const struct nfs4_delegreturnargs *args) | |
1da177e4 | 2757 | { |
1da177e4 | 2758 | struct compound_hdr hdr = { |
66cc0429 | 2759 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2760 | }; |
1da177e4 | 2761 | |
9f06c719 CL |
2762 | encode_compound_hdr(xdr, req, &hdr); |
2763 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2764 | encode_putfh(xdr, args->fhandle, &hdr); | |
2765 | encode_delegreturn(xdr, args->stateid, &hdr); | |
2766 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2767 | encode_nops(&hdr); |
1da177e4 LT |
2768 | } |
2769 | ||
683b57b4 TM |
2770 | /* |
2771 | * Encode FS_LOCATIONS request | |
2772 | */ | |
9f06c719 CL |
2773 | static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, |
2774 | struct xdr_stream *xdr, | |
2775 | struct nfs4_fs_locations_arg *args) | |
683b57b4 | 2776 | { |
683b57b4 | 2777 | struct compound_hdr hdr = { |
66cc0429 | 2778 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
683b57b4 | 2779 | }; |
28f56694 | 2780 | uint32_t replen; |
683b57b4 | 2781 | |
9f06c719 CL |
2782 | encode_compound_hdr(xdr, req, &hdr); |
2783 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2784 | encode_putfh(xdr, args->dir_fh, &hdr); | |
2785 | encode_lookup(xdr, args->name, &hdr); | |
28f56694 | 2786 | replen = hdr.replen; /* get the attribute into args->page */ |
9f06c719 | 2787 | encode_fs_locations(xdr, args->bitmask, &hdr); |
cf8cdbe5 | 2788 | |
28f56694 | 2789 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, |
683b57b4 | 2790 | 0, PAGE_SIZE); |
d017931c | 2791 | encode_nops(&hdr); |
683b57b4 TM |
2792 | } |
2793 | ||
5a5ea0d4 BS |
2794 | /* |
2795 | * Encode SECINFO request | |
2796 | */ | |
2797 | static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, | |
2798 | struct xdr_stream *xdr, | |
2799 | struct nfs4_secinfo_arg *args) | |
2800 | { | |
2801 | struct compound_hdr hdr = { | |
2802 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
2803 | }; | |
2804 | ||
2805 | encode_compound_hdr(xdr, req, &hdr); | |
2806 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2807 | encode_putfh(xdr, args->dir_fh, &hdr); | |
2808 | encode_secinfo(xdr, args->name, &hdr); | |
2809 | encode_nops(&hdr); | |
2810 | } | |
2811 | ||
99fe60d0 BH |
2812 | #if defined(CONFIG_NFS_V4_1) |
2813 | /* | |
2814 | * EXCHANGE_ID request | |
2815 | */ | |
9f06c719 CL |
2816 | static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, |
2817 | struct xdr_stream *xdr, | |
2818 | struct nfs41_exchange_id_args *args) | |
99fe60d0 | 2819 | { |
99fe60d0 | 2820 | struct compound_hdr hdr = { |
a4432345 | 2821 | .minorversion = args->client->cl_mvops->minor_version, |
99fe60d0 BH |
2822 | }; |
2823 | ||
9f06c719 CL |
2824 | encode_compound_hdr(xdr, req, &hdr); |
2825 | encode_exchange_id(xdr, args, &hdr); | |
99fe60d0 | 2826 | encode_nops(&hdr); |
99fe60d0 | 2827 | } |
2050f0cc | 2828 | |
fc931582 AA |
2829 | /* |
2830 | * a CREATE_SESSION request | |
2831 | */ | |
9f06c719 CL |
2832 | static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, |
2833 | struct xdr_stream *xdr, | |
2834 | struct nfs41_create_session_args *args) | |
fc931582 | 2835 | { |
fc931582 | 2836 | struct compound_hdr hdr = { |
a4432345 | 2837 | .minorversion = args->client->cl_mvops->minor_version, |
fc931582 AA |
2838 | }; |
2839 | ||
9f06c719 CL |
2840 | encode_compound_hdr(xdr, req, &hdr); |
2841 | encode_create_session(xdr, args, &hdr); | |
fc931582 | 2842 | encode_nops(&hdr); |
fc931582 AA |
2843 | } |
2844 | ||
0f3e66c6 AA |
2845 | /* |
2846 | * a DESTROY_SESSION request | |
2847 | */ | |
9f06c719 CL |
2848 | static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, |
2849 | struct xdr_stream *xdr, | |
2850 | struct nfs4_session *session) | |
0f3e66c6 | 2851 | { |
0f3e66c6 | 2852 | struct compound_hdr hdr = { |
a4432345 | 2853 | .minorversion = session->clp->cl_mvops->minor_version, |
0f3e66c6 AA |
2854 | }; |
2855 | ||
9f06c719 CL |
2856 | encode_compound_hdr(xdr, req, &hdr); |
2857 | encode_destroy_session(xdr, session, &hdr); | |
0f3e66c6 | 2858 | encode_nops(&hdr); |
0f3e66c6 AA |
2859 | } |
2860 | ||
fc01cea9 AA |
2861 | /* |
2862 | * a SEQUENCE request | |
2863 | */ | |
9f06c719 CL |
2864 | static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, |
2865 | struct nfs4_sequence_args *args) | |
fc01cea9 | 2866 | { |
fc01cea9 AA |
2867 | struct compound_hdr hdr = { |
2868 | .minorversion = nfs4_xdr_minorversion(args), | |
2869 | }; | |
2870 | ||
9f06c719 CL |
2871 | encode_compound_hdr(xdr, req, &hdr); |
2872 | encode_sequence(xdr, args, &hdr); | |
fc01cea9 | 2873 | encode_nops(&hdr); |
fc01cea9 AA |
2874 | } |
2875 | ||
2050f0cc AA |
2876 | /* |
2877 | * a GET_LEASE_TIME request | |
2878 | */ | |
9f06c719 CL |
2879 | static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, |
2880 | struct xdr_stream *xdr, | |
2881 | struct nfs4_get_lease_time_args *args) | |
2050f0cc | 2882 | { |
2050f0cc AA |
2883 | struct compound_hdr hdr = { |
2884 | .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), | |
2885 | }; | |
dae100c2 | 2886 | const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; |
2050f0cc | 2887 | |
9f06c719 CL |
2888 | encode_compound_hdr(xdr, req, &hdr); |
2889 | encode_sequence(xdr, &args->la_seq_args, &hdr); | |
2890 | encode_putrootfh(xdr, &hdr); | |
2891 | encode_fsinfo(xdr, lease_bitmap, &hdr); | |
2050f0cc | 2892 | encode_nops(&hdr); |
2050f0cc | 2893 | } |
18019753 RL |
2894 | |
2895 | /* | |
2896 | * a RECLAIM_COMPLETE request | |
2897 | */ | |
9f06c719 CL |
2898 | static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, |
2899 | struct xdr_stream *xdr, | |
2900 | struct nfs41_reclaim_complete_args *args) | |
18019753 | 2901 | { |
18019753 RL |
2902 | struct compound_hdr hdr = { |
2903 | .minorversion = nfs4_xdr_minorversion(&args->seq_args) | |
2904 | }; | |
2905 | ||
9f06c719 CL |
2906 | encode_compound_hdr(xdr, req, &hdr); |
2907 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2908 | encode_reclaim_complete(xdr, args, &hdr); | |
18019753 | 2909 | encode_nops(&hdr); |
18019753 RL |
2910 | } |
2911 | ||
7f11d8d3 AA |
2912 | /* |
2913 | * Encode GETDEVICELIST request | |
2914 | */ | |
2915 | static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req, | |
2916 | struct xdr_stream *xdr, | |
2917 | struct nfs4_getdevicelist_args *args) | |
2918 | { | |
2919 | struct compound_hdr hdr = { | |
2920 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
2921 | }; | |
2922 | ||
2923 | encode_compound_hdr(xdr, req, &hdr); | |
2924 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2925 | encode_putfh(xdr, args->fh, &hdr); | |
2926 | encode_getdevicelist(xdr, args, &hdr); | |
2927 | encode_nops(&hdr); | |
2928 | } | |
2929 | ||
b1f69b75 AA |
2930 | /* |
2931 | * Encode GETDEVICEINFO request | |
2932 | */ | |
9f06c719 CL |
2933 | static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, |
2934 | struct xdr_stream *xdr, | |
2935 | struct nfs4_getdeviceinfo_args *args) | |
b1f69b75 | 2936 | { |
b1f69b75 AA |
2937 | struct compound_hdr hdr = { |
2938 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
2939 | }; | |
2940 | ||
9f06c719 CL |
2941 | encode_compound_hdr(xdr, req, &hdr); |
2942 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2943 | encode_getdeviceinfo(xdr, args, &hdr); | |
b1f69b75 AA |
2944 | |
2945 | /* set up reply kvec. Subtract notification bitmap max size (2) | |
2946 | * so that notification bitmap is put in xdr_buf tail */ | |
2947 | xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, | |
2948 | args->pdev->pages, args->pdev->pgbase, | |
2949 | args->pdev->pglen); | |
2950 | ||
2951 | encode_nops(&hdr); | |
b1f69b75 AA |
2952 | } |
2953 | ||
2954 | /* | |
2955 | * Encode LAYOUTGET request | |
2956 | */ | |
9f06c719 CL |
2957 | static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, |
2958 | struct xdr_stream *xdr, | |
2959 | struct nfs4_layoutget_args *args) | |
b1f69b75 | 2960 | { |
b1f69b75 AA |
2961 | struct compound_hdr hdr = { |
2962 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
2963 | }; | |
2964 | ||
9f06c719 CL |
2965 | encode_compound_hdr(xdr, req, &hdr); |
2966 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2967 | encode_putfh(xdr, NFS_FH(args->inode), &hdr); | |
2968 | encode_layoutget(xdr, args, &hdr); | |
35124a09 WAA |
2969 | |
2970 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, | |
2971 | args->layout.pages, 0, args->layout.pglen); | |
2972 | ||
b1f69b75 | 2973 | encode_nops(&hdr); |
b1f69b75 | 2974 | } |
863a3c6c AA |
2975 | |
2976 | /* | |
2977 | * Encode LAYOUTCOMMIT request | |
2978 | */ | |
cbe82603 BH |
2979 | static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, |
2980 | struct xdr_stream *xdr, | |
2981 | struct nfs4_layoutcommit_args *args) | |
863a3c6c | 2982 | { |
ac7db726 BH |
2983 | struct nfs4_layoutcommit_data *data = |
2984 | container_of(args, struct nfs4_layoutcommit_data, args); | |
863a3c6c AA |
2985 | struct compound_hdr hdr = { |
2986 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
2987 | }; | |
2988 | ||
2989 | encode_compound_hdr(xdr, req, &hdr); | |
2990 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2991 | encode_putfh(xdr, NFS_FH(args->inode), &hdr); | |
ac7db726 | 2992 | encode_layoutcommit(xdr, data->args.inode, args, &hdr); |
863a3c6c | 2993 | encode_getfattr(xdr, args->bitmask, &hdr); |
b1f69b75 | 2994 | encode_nops(&hdr); |
cbe82603 BH |
2995 | } |
2996 | ||
2997 | /* | |
2998 | * Encode LAYOUTRETURN request | |
2999 | */ | |
3000 | static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, | |
3001 | struct xdr_stream *xdr, | |
3002 | struct nfs4_layoutreturn_args *args) | |
3003 | { | |
3004 | struct compound_hdr hdr = { | |
3005 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
3006 | }; | |
3007 | ||
3008 | encode_compound_hdr(xdr, req, &hdr); | |
3009 | encode_sequence(xdr, &args->seq_args, &hdr); | |
3010 | encode_putfh(xdr, NFS_FH(args->inode), &hdr); | |
3011 | encode_layoutreturn(xdr, args, &hdr); | |
3012 | encode_nops(&hdr); | |
b1f69b75 | 3013 | } |
fca78d6d BS |
3014 | |
3015 | /* | |
3016 | * Encode SECINFO_NO_NAME request | |
3017 | */ | |
3018 | static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, | |
3019 | struct xdr_stream *xdr, | |
3020 | struct nfs41_secinfo_no_name_args *args) | |
3021 | { | |
3022 | struct compound_hdr hdr = { | |
3023 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
3024 | }; | |
3025 | ||
3026 | encode_compound_hdr(xdr, req, &hdr); | |
3027 | encode_sequence(xdr, &args->seq_args, &hdr); | |
3028 | encode_putrootfh(xdr, &hdr); | |
3029 | encode_secinfo_no_name(xdr, args, &hdr); | |
3030 | encode_nops(&hdr); | |
3031 | return 0; | |
3032 | } | |
7d974794 BS |
3033 | |
3034 | /* | |
3035 | * Encode TEST_STATEID request | |
3036 | */ | |
3037 | static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, | |
3038 | struct xdr_stream *xdr, | |
3039 | struct nfs41_test_stateid_args *args) | |
3040 | { | |
3041 | struct compound_hdr hdr = { | |
3042 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
3043 | }; | |
3044 | ||
3045 | encode_compound_hdr(xdr, req, &hdr); | |
3046 | encode_sequence(xdr, &args->seq_args, &hdr); | |
3047 | encode_test_stateid(xdr, args, &hdr); | |
3048 | encode_nops(&hdr); | |
3049 | } | |
9aeda35f BS |
3050 | |
3051 | /* | |
3052 | * Encode FREE_STATEID request | |
3053 | */ | |
3054 | static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, | |
3055 | struct xdr_stream *xdr, | |
3056 | struct nfs41_free_stateid_args *args) | |
3057 | { | |
3058 | struct compound_hdr hdr = { | |
3059 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
3060 | }; | |
3061 | ||
3062 | encode_compound_hdr(xdr, req, &hdr); | |
3063 | encode_sequence(xdr, &args->seq_args, &hdr); | |
3064 | encode_free_stateid(xdr, args, &hdr); | |
3065 | encode_nops(&hdr); | |
3066 | } | |
99fe60d0 BH |
3067 | #endif /* CONFIG_NFS_V4_1 */ |
3068 | ||
686841b3 BH |
3069 | static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) |
3070 | { | |
3071 | dprintk("nfs: %s: prematurely hit end of receive buffer. " | |
3072 | "Remaining buffer length is %tu words.\n", | |
3073 | func, xdr->end - xdr->p); | |
3074 | } | |
1da177e4 | 3075 | |
683b57b4 | 3076 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
1da177e4 | 3077 | { |
8687b63a | 3078 | __be32 *p; |
1da177e4 | 3079 | |
c0eae66e BH |
3080 | p = xdr_inline_decode(xdr, 4); |
3081 | if (unlikely(!p)) | |
3082 | goto out_overflow; | |
cccddf4f | 3083 | *len = be32_to_cpup(p); |
c0eae66e BH |
3084 | p = xdr_inline_decode(xdr, *len); |
3085 | if (unlikely(!p)) | |
3086 | goto out_overflow; | |
1da177e4 LT |
3087 | *string = (char *)p; |
3088 | return 0; | |
c0eae66e BH |
3089 | out_overflow: |
3090 | print_overflow_msg(__func__, xdr); | |
3091 | return -EIO; | |
1da177e4 LT |
3092 | } |
3093 | ||
3094 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
3095 | { | |
8687b63a | 3096 | __be32 *p; |
1da177e4 | 3097 | |
c0eae66e BH |
3098 | p = xdr_inline_decode(xdr, 8); |
3099 | if (unlikely(!p)) | |
3100 | goto out_overflow; | |
6f723f77 | 3101 | hdr->status = be32_to_cpup(p++); |
cccddf4f | 3102 | hdr->taglen = be32_to_cpup(p); |
6c0195a4 | 3103 | |
c0eae66e BH |
3104 | p = xdr_inline_decode(xdr, hdr->taglen + 4); |
3105 | if (unlikely(!p)) | |
3106 | goto out_overflow; | |
1da177e4 LT |
3107 | hdr->tag = (char *)p; |
3108 | p += XDR_QUADLEN(hdr->taglen); | |
cccddf4f | 3109 | hdr->nops = be32_to_cpup(p); |
aadf6152 BH |
3110 | if (unlikely(hdr->nops < 1)) |
3111 | return nfs4_stat_to_errno(hdr->status); | |
1da177e4 | 3112 | return 0; |
c0eae66e BH |
3113 | out_overflow: |
3114 | print_overflow_msg(__func__, xdr); | |
3115 | return -EIO; | |
1da177e4 LT |
3116 | } |
3117 | ||
3118 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) | |
3119 | { | |
8687b63a | 3120 | __be32 *p; |
1da177e4 LT |
3121 | uint32_t opnum; |
3122 | int32_t nfserr; | |
3123 | ||
c0eae66e BH |
3124 | p = xdr_inline_decode(xdr, 8); |
3125 | if (unlikely(!p)) | |
3126 | goto out_overflow; | |
6f723f77 | 3127 | opnum = be32_to_cpup(p++); |
1da177e4 | 3128 | if (opnum != expected) { |
fe82a183 CL |
3129 | dprintk("nfs: Server returned operation" |
3130 | " %d but we issued a request for %d\n", | |
1da177e4 LT |
3131 | opnum, expected); |
3132 | return -EIO; | |
3133 | } | |
cccddf4f | 3134 | nfserr = be32_to_cpup(p); |
1da177e4 | 3135 | if (nfserr != NFS_OK) |
856dff3d | 3136 | return nfs4_stat_to_errno(nfserr); |
1da177e4 | 3137 | return 0; |
c0eae66e BH |
3138 | out_overflow: |
3139 | print_overflow_msg(__func__, xdr); | |
3140 | return -EIO; | |
1da177e4 LT |
3141 | } |
3142 | ||
3143 | /* Dummy routine */ | |
adfa6f98 | 3144 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
1da177e4 | 3145 | { |
8687b63a | 3146 | __be32 *p; |
683b57b4 | 3147 | unsigned int strlen; |
1da177e4 LT |
3148 | char *str; |
3149 | ||
c0eae66e BH |
3150 | p = xdr_inline_decode(xdr, 12); |
3151 | if (likely(p)) | |
3152 | return decode_opaque_inline(xdr, &strlen, &str); | |
3153 | print_overflow_msg(__func__, xdr); | |
3154 | return -EIO; | |
1da177e4 LT |
3155 | } |
3156 | ||
3157 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) | |
3158 | { | |
8687b63a AV |
3159 | uint32_t bmlen; |
3160 | __be32 *p; | |
1da177e4 | 3161 | |
c0eae66e BH |
3162 | p = xdr_inline_decode(xdr, 4); |
3163 | if (unlikely(!p)) | |
3164 | goto out_overflow; | |
cccddf4f | 3165 | bmlen = be32_to_cpup(p); |
1da177e4 | 3166 | |
dae100c2 | 3167 | bitmap[0] = bitmap[1] = bitmap[2] = 0; |
c0eae66e BH |
3168 | p = xdr_inline_decode(xdr, (bmlen << 2)); |
3169 | if (unlikely(!p)) | |
3170 | goto out_overflow; | |
1da177e4 | 3171 | if (bmlen > 0) { |
6f723f77 | 3172 | bitmap[0] = be32_to_cpup(p++); |
dae100c2 FI |
3173 | if (bmlen > 1) { |
3174 | bitmap[1] = be32_to_cpup(p++); | |
3175 | if (bmlen > 2) | |
3176 | bitmap[2] = be32_to_cpup(p); | |
3177 | } | |
1da177e4 LT |
3178 | } |
3179 | return 0; | |
c0eae66e BH |
3180 | out_overflow: |
3181 | print_overflow_msg(__func__, xdr); | |
3182 | return -EIO; | |
1da177e4 LT |
3183 | } |
3184 | ||
8687b63a | 3185 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
1da177e4 | 3186 | { |
8687b63a | 3187 | __be32 *p; |
1da177e4 | 3188 | |
c0eae66e BH |
3189 | p = xdr_inline_decode(xdr, 4); |
3190 | if (unlikely(!p)) | |
3191 | goto out_overflow; | |
cccddf4f | 3192 | *attrlen = be32_to_cpup(p); |
1da177e4 LT |
3193 | *savep = xdr->p; |
3194 | return 0; | |
c0eae66e BH |
3195 | out_overflow: |
3196 | print_overflow_msg(__func__, xdr); | |
3197 | return -EIO; | |
1da177e4 LT |
3198 | } |
3199 | ||
3200 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) | |
3201 | { | |
3202 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { | |
3388bff5 RB |
3203 | int ret; |
3204 | ret = decode_attr_bitmap(xdr, bitmask); | |
3205 | if (unlikely(ret < 0)) | |
3206 | return ret; | |
1da177e4 LT |
3207 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; |
3208 | } else | |
dae100c2 FI |
3209 | bitmask[0] = bitmask[1] = bitmask[2] = 0; |
3210 | dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, | |
3211 | bitmask[0], bitmask[1], bitmask[2]); | |
1da177e4 LT |
3212 | return 0; |
3213 | } | |
3214 | ||
3215 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) | |
3216 | { | |
8687b63a | 3217 | __be32 *p; |
409924e4 | 3218 | int ret = 0; |
1da177e4 LT |
3219 | |
3220 | *type = 0; | |
3221 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) | |
3222 | return -EIO; | |
3223 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { | |
c0eae66e BH |
3224 | p = xdr_inline_decode(xdr, 4); |
3225 | if (unlikely(!p)) | |
3226 | goto out_overflow; | |
cccddf4f | 3227 | *type = be32_to_cpup(p); |
1da177e4 | 3228 | if (*type < NF4REG || *type > NF4NAMEDATTR) { |
3110ff80 | 3229 | dprintk("%s: bad type %d\n", __func__, *type); |
1da177e4 LT |
3230 | return -EIO; |
3231 | } | |
3232 | bitmap[0] &= ~FATTR4_WORD0_TYPE; | |
409924e4 | 3233 | ret = NFS_ATTR_FATTR_TYPE; |
1da177e4 | 3234 | } |
bca79478 | 3235 | dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); |
409924e4 | 3236 | return ret; |
c0eae66e BH |
3237 | out_overflow: |
3238 | print_overflow_msg(__func__, xdr); | |
3239 | return -EIO; | |
1da177e4 LT |
3240 | } |
3241 | ||
264e6351 CL |
3242 | static int decode_attr_fh_expire_type(struct xdr_stream *xdr, |
3243 | uint32_t *bitmap, uint32_t *type) | |
3244 | { | |
3245 | __be32 *p; | |
3246 | ||
3247 | *type = 0; | |
3248 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U))) | |
3249 | return -EIO; | |
3250 | if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) { | |
3251 | p = xdr_inline_decode(xdr, 4); | |
3252 | if (unlikely(!p)) | |
3253 | goto out_overflow; | |
3254 | *type = be32_to_cpup(p); | |
3255 | bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE; | |
3256 | } | |
3257 | dprintk("%s: expire type=0x%x\n", __func__, *type); | |
3258 | return 0; | |
3259 | out_overflow: | |
3260 | print_overflow_msg(__func__, xdr); | |
3261 | return -EIO; | |
3262 | } | |
3263 | ||
1da177e4 LT |
3264 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) |
3265 | { | |
8687b63a | 3266 | __be32 *p; |
409924e4 | 3267 | int ret = 0; |
1da177e4 LT |
3268 | |
3269 | *change = 0; | |
3270 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) | |
3271 | return -EIO; | |
3272 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { | |
c0eae66e BH |
3273 | p = xdr_inline_decode(xdr, 8); |
3274 | if (unlikely(!p)) | |
3275 | goto out_overflow; | |
cccddf4f | 3276 | xdr_decode_hyper(p, change); |
1da177e4 | 3277 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; |
409924e4 | 3278 | ret = NFS_ATTR_FATTR_CHANGE; |
1da177e4 | 3279 | } |
3110ff80 | 3280 | dprintk("%s: change attribute=%Lu\n", __func__, |
1da177e4 | 3281 | (unsigned long long)*change); |
409924e4 | 3282 | return ret; |
c0eae66e BH |
3283 | out_overflow: |
3284 | print_overflow_msg(__func__, xdr); | |
3285 | return -EIO; | |
1da177e4 LT |
3286 | } |
3287 | ||
3288 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) | |
3289 | { | |
8687b63a | 3290 | __be32 *p; |
409924e4 | 3291 | int ret = 0; |
1da177e4 LT |
3292 | |
3293 | *size = 0; | |
3294 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) | |
3295 | return -EIO; | |
3296 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { | |
c0eae66e BH |
3297 | p = xdr_inline_decode(xdr, 8); |
3298 | if (unlikely(!p)) | |
3299 | goto out_overflow; | |
cccddf4f | 3300 | xdr_decode_hyper(p, size); |
1da177e4 | 3301 | bitmap[0] &= ~FATTR4_WORD0_SIZE; |
409924e4 | 3302 | ret = NFS_ATTR_FATTR_SIZE; |
1da177e4 | 3303 | } |
3110ff80 | 3304 | dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); |
409924e4 | 3305 | return ret; |
c0eae66e BH |
3306 | out_overflow: |
3307 | print_overflow_msg(__func__, xdr); | |
3308 | return -EIO; | |
1da177e4 LT |
3309 | } |
3310 | ||
3311 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
3312 | { | |
8687b63a | 3313 | __be32 *p; |
1da177e4 LT |
3314 | |
3315 | *res = 0; | |
3316 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) | |
3317 | return -EIO; | |
3318 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { | |
c0eae66e BH |
3319 | p = xdr_inline_decode(xdr, 4); |
3320 | if (unlikely(!p)) | |
3321 | goto out_overflow; | |
cccddf4f | 3322 | *res = be32_to_cpup(p); |
1da177e4 LT |
3323 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; |
3324 | } | |
3110ff80 | 3325 | dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 | 3326 | return 0; |
c0eae66e BH |
3327 | out_overflow: |
3328 | print_overflow_msg(__func__, xdr); | |
3329 | return -EIO; | |
1da177e4 LT |
3330 | } |
3331 | ||
3332 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
3333 | { | |
8687b63a | 3334 | __be32 *p; |
1da177e4 LT |
3335 | |
3336 | *res = 0; | |
3337 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) | |
3338 | return -EIO; | |
3339 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { | |
c0eae66e BH |
3340 | p = xdr_inline_decode(xdr, 4); |
3341 | if (unlikely(!p)) | |
3342 | goto out_overflow; | |
cccddf4f | 3343 | *res = be32_to_cpup(p); |
1da177e4 LT |
3344 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; |
3345 | } | |
3110ff80 | 3346 | dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 | 3347 | return 0; |
c0eae66e BH |
3348 | out_overflow: |
3349 | print_overflow_msg(__func__, xdr); | |
3350 | return -EIO; | |
1da177e4 LT |
3351 | } |
3352 | ||
8b4bdcf8 | 3353 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
1da177e4 | 3354 | { |
8687b63a | 3355 | __be32 *p; |
409924e4 | 3356 | int ret = 0; |
1da177e4 LT |
3357 | |
3358 | fsid->major = 0; | |
3359 | fsid->minor = 0; | |
3360 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) | |
3361 | return -EIO; | |
3362 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { | |
c0eae66e BH |
3363 | p = xdr_inline_decode(xdr, 16); |
3364 | if (unlikely(!p)) | |
3365 | goto out_overflow; | |
3ceb4dbb | 3366 | p = xdr_decode_hyper(p, &fsid->major); |
cccddf4f | 3367 | xdr_decode_hyper(p, &fsid->minor); |
1da177e4 | 3368 | bitmap[0] &= ~FATTR4_WORD0_FSID; |
409924e4 | 3369 | ret = NFS_ATTR_FATTR_FSID; |
1da177e4 | 3370 | } |
3110ff80 | 3371 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, |
1da177e4 LT |
3372 | (unsigned long long)fsid->major, |
3373 | (unsigned long long)fsid->minor); | |
409924e4 | 3374 | return ret; |
c0eae66e BH |
3375 | out_overflow: |
3376 | print_overflow_msg(__func__, xdr); | |
3377 | return -EIO; | |
1da177e4 LT |
3378 | } |
3379 | ||
3380 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
3381 | { | |
8687b63a | 3382 | __be32 *p; |
1da177e4 LT |
3383 | |
3384 | *res = 60; | |
3385 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) | |
3386 | return -EIO; | |
3387 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { | |
c0eae66e BH |
3388 | p = xdr_inline_decode(xdr, 4); |
3389 | if (unlikely(!p)) | |
3390 | goto out_overflow; | |
cccddf4f | 3391 | *res = be32_to_cpup(p); |
1da177e4 LT |
3392 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; |
3393 | } | |
3110ff80 | 3394 | dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); |
1da177e4 | 3395 | return 0; |
c0eae66e BH |
3396 | out_overflow: |
3397 | print_overflow_msg(__func__, xdr); | |
3398 | return -EIO; | |
1da177e4 LT |
3399 | } |
3400 | ||
ee7b75fc | 3401 | static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) |
ae42c70a BS |
3402 | { |
3403 | __be32 *p; | |
3404 | ||
3405 | if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) | |
3406 | return -EIO; | |
3407 | if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { | |
3408 | p = xdr_inline_decode(xdr, 4); | |
3409 | if (unlikely(!p)) | |
3410 | goto out_overflow; | |
3411 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; | |
ee7b75fc | 3412 | *res = -be32_to_cpup(p); |
ae42c70a BS |
3413 | } |
3414 | return 0; | |
3415 | out_overflow: | |
3416 | print_overflow_msg(__func__, xdr); | |
3417 | return -EIO; | |
3418 | } | |
3419 | ||
3420 | static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) | |
3421 | { | |
3422 | __be32 *p; | |
3423 | int len; | |
3424 | ||
7ad07353 TM |
3425 | if (fh != NULL) |
3426 | memset(fh, 0, sizeof(*fh)); | |
ae42c70a BS |
3427 | |
3428 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) | |
3429 | return -EIO; | |
3430 | if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { | |
3431 | p = xdr_inline_decode(xdr, 4); | |
3432 | if (unlikely(!p)) | |
3433 | goto out_overflow; | |
3434 | len = be32_to_cpup(p); | |
3435 | if (len > NFS4_FHSIZE) | |
3436 | return -EIO; | |
ae42c70a BS |
3437 | p = xdr_inline_decode(xdr, len); |
3438 | if (unlikely(!p)) | |
3439 | goto out_overflow; | |
7ad07353 TM |
3440 | if (fh != NULL) { |
3441 | memcpy(fh->data, p, len); | |
3442 | fh->size = len; | |
3443 | } | |
ae42c70a BS |
3444 | bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; |
3445 | } | |
3446 | return 0; | |
3447 | out_overflow: | |
3448 | print_overflow_msg(__func__, xdr); | |
3449 | return -EIO; | |
3450 | } | |
3451 | ||
1da177e4 LT |
3452 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) |
3453 | { | |
8687b63a | 3454 | __be32 *p; |
1da177e4 LT |
3455 | |
3456 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; | |
3457 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) | |
3458 | return -EIO; | |
3459 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { | |
c0eae66e BH |
3460 | p = xdr_inline_decode(xdr, 4); |
3461 | if (unlikely(!p)) | |
3462 | goto out_overflow; | |
cccddf4f | 3463 | *res = be32_to_cpup(p); |
1da177e4 LT |
3464 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; |
3465 | } | |
3110ff80 | 3466 | dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); |
1da177e4 | 3467 | return 0; |
c0eae66e BH |
3468 | out_overflow: |
3469 | print_overflow_msg(__func__, xdr); | |
3470 | return -EIO; | |
1da177e4 LT |
3471 | } |
3472 | ||
3473 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) | |
3474 | { | |
8687b63a | 3475 | __be32 *p; |
409924e4 | 3476 | int ret = 0; |
1da177e4 LT |
3477 | |
3478 | *fileid = 0; | |
3479 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) | |
3480 | return -EIO; | |
3481 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { | |
c0eae66e BH |
3482 | p = xdr_inline_decode(xdr, 8); |
3483 | if (unlikely(!p)) | |
3484 | goto out_overflow; | |
cccddf4f | 3485 | xdr_decode_hyper(p, fileid); |
1da177e4 | 3486 | bitmap[0] &= ~FATTR4_WORD0_FILEID; |
409924e4 | 3487 | ret = NFS_ATTR_FATTR_FILEID; |
1da177e4 | 3488 | } |
3110ff80 | 3489 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 3490 | return ret; |
c0eae66e BH |
3491 | out_overflow: |
3492 | print_overflow_msg(__func__, xdr); | |
3493 | return -EIO; | |
1da177e4 LT |
3494 | } |
3495 | ||
99baf625 MN |
3496 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
3497 | { | |
8687b63a | 3498 | __be32 *p; |
409924e4 | 3499 | int ret = 0; |
99baf625 MN |
3500 | |
3501 | *fileid = 0; | |
3502 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) | |
3503 | return -EIO; | |
3504 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { | |
c0eae66e BH |
3505 | p = xdr_inline_decode(xdr, 8); |
3506 | if (unlikely(!p)) | |
3507 | goto out_overflow; | |
cccddf4f | 3508 | xdr_decode_hyper(p, fileid); |
99baf625 | 3509 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; |
28331a46 | 3510 | ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; |
99baf625 | 3511 | } |
3110ff80 | 3512 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 3513 | return ret; |
c0eae66e BH |
3514 | out_overflow: |
3515 | print_overflow_msg(__func__, xdr); | |
3516 | return -EIO; | |
99baf625 MN |
3517 | } |
3518 | ||
1da177e4 LT |
3519 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
3520 | { | |
8687b63a | 3521 | __be32 *p; |
1da177e4 LT |
3522 | int status = 0; |
3523 | ||
3524 | *res = 0; | |
3525 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) | |
3526 | return -EIO; | |
3527 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { | |
c0eae66e BH |
3528 | p = xdr_inline_decode(xdr, 8); |
3529 | if (unlikely(!p)) | |
3530 | goto out_overflow; | |
cccddf4f | 3531 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3532 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; |
3533 | } | |
3110ff80 | 3534 | dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3535 | return status; |
c0eae66e BH |
3536 | out_overflow: |
3537 | print_overflow_msg(__func__, xdr); | |
3538 | return -EIO; | |
1da177e4 LT |
3539 | } |
3540 | ||
3541 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3542 | { | |
8687b63a | 3543 | __be32 *p; |
1da177e4 LT |
3544 | int status = 0; |
3545 | ||
3546 | *res = 0; | |
3547 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) | |
3548 | return -EIO; | |
3549 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { | |
c0eae66e BH |
3550 | p = xdr_inline_decode(xdr, 8); |
3551 | if (unlikely(!p)) | |
3552 | goto out_overflow; | |
cccddf4f | 3553 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3554 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; |
3555 | } | |
3110ff80 | 3556 | dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3557 | return status; |
c0eae66e BH |
3558 | out_overflow: |
3559 | print_overflow_msg(__func__, xdr); | |
3560 | return -EIO; | |
1da177e4 LT |
3561 | } |
3562 | ||
3563 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3564 | { | |
8687b63a | 3565 | __be32 *p; |
1da177e4 LT |
3566 | int status = 0; |
3567 | ||
3568 | *res = 0; | |
3569 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) | |
3570 | return -EIO; | |
3571 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { | |
c0eae66e BH |
3572 | p = xdr_inline_decode(xdr, 8); |
3573 | if (unlikely(!p)) | |
3574 | goto out_overflow; | |
cccddf4f | 3575 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3576 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; |
3577 | } | |
3110ff80 | 3578 | dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3579 | return status; |
c0eae66e BH |
3580 | out_overflow: |
3581 | print_overflow_msg(__func__, xdr); | |
3582 | return -EIO; | |
1da177e4 LT |
3583 | } |
3584 | ||
7aaa0b3b MN |
3585 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
3586 | { | |
464ad6b1 | 3587 | u32 n; |
8687b63a | 3588 | __be32 *p; |
7aaa0b3b MN |
3589 | int status = 0; |
3590 | ||
c0eae66e BH |
3591 | p = xdr_inline_decode(xdr, 4); |
3592 | if (unlikely(!p)) | |
3593 | goto out_overflow; | |
cccddf4f | 3594 | n = be32_to_cpup(p); |
33a43f28 AA |
3595 | if (n == 0) |
3596 | goto root_path; | |
02a2976c | 3597 | dprintk("pathname4: "); |
7aaa0b3b MN |
3598 | path->ncomponents = 0; |
3599 | while (path->ncomponents < n) { | |
3600 | struct nfs4_string *component = &path->components[path->ncomponents]; | |
3601 | status = decode_opaque_inline(xdr, &component->len, &component->data); | |
3602 | if (unlikely(status != 0)) | |
3603 | goto out_eio; | |
02a2976c CL |
3604 | if (unlikely(nfs_debug & NFSDBG_XDR)) |
3605 | pr_cont("%s%.*s ", | |
3606 | (path->ncomponents != n ? "/ " : ""), | |
3607 | component->len, component->data); | |
7aaa0b3b MN |
3608 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) |
3609 | path->ncomponents++; | |
3610 | else { | |
3611 | dprintk("cannot parse %d components in path\n", n); | |
3612 | goto out_eio; | |
3613 | } | |
3614 | } | |
3615 | out: | |
7aaa0b3b | 3616 | return status; |
33a43f28 AA |
3617 | root_path: |
3618 | /* a root pathname is sent as a zero component4 */ | |
3619 | path->ncomponents = 1; | |
3620 | path->components[0].len=0; | |
3621 | path->components[0].data=NULL; | |
02a2976c | 3622 | dprintk("pathname4: /\n"); |
33a43f28 | 3623 | goto out; |
7aaa0b3b MN |
3624 | out_eio: |
3625 | dprintk(" status %d", status); | |
3626 | status = -EIO; | |
3627 | goto out; | |
c0eae66e BH |
3628 | out_overflow: |
3629 | print_overflow_msg(__func__, xdr); | |
3630 | return -EIO; | |
7aaa0b3b MN |
3631 | } |
3632 | ||
3633 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) | |
683b57b4 TM |
3634 | { |
3635 | int n; | |
8687b63a | 3636 | __be32 *p; |
683b57b4 TM |
3637 | int status = -EIO; |
3638 | ||
3639 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) | |
3640 | goto out; | |
3641 | status = 0; | |
3642 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) | |
3643 | goto out; | |
8b7e3f49 TM |
3644 | status = -EIO; |
3645 | /* Ignore borken servers that return unrequested attrs */ | |
3646 | if (unlikely(res == NULL)) | |
3647 | goto out; | |
02a2976c | 3648 | dprintk("%s: fsroot:\n", __func__); |
7aaa0b3b | 3649 | status = decode_pathname(xdr, &res->fs_path); |
683b57b4 TM |
3650 | if (unlikely(status != 0)) |
3651 | goto out; | |
c0eae66e BH |
3652 | p = xdr_inline_decode(xdr, 4); |
3653 | if (unlikely(!p)) | |
3654 | goto out_overflow; | |
cccddf4f | 3655 | n = be32_to_cpup(p); |
683b57b4 TM |
3656 | if (n <= 0) |
3657 | goto out_eio; | |
3658 | res->nlocations = 0; | |
3659 | while (res->nlocations < n) { | |
464ad6b1 | 3660 | u32 m; |
7aaa0b3b | 3661 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; |
683b57b4 | 3662 | |
c0eae66e BH |
3663 | p = xdr_inline_decode(xdr, 4); |
3664 | if (unlikely(!p)) | |
3665 | goto out_overflow; | |
cccddf4f | 3666 | m = be32_to_cpup(p); |
7aaa0b3b MN |
3667 | |
3668 | loc->nservers = 0; | |
02a2976c | 3669 | dprintk("%s: servers:\n", __func__); |
7aaa0b3b MN |
3670 | while (loc->nservers < m) { |
3671 | struct nfs4_string *server = &loc->servers[loc->nservers]; | |
3672 | status = decode_opaque_inline(xdr, &server->len, &server->data); | |
3673 | if (unlikely(status != 0)) | |
3674 | goto out_eio; | |
3675 | dprintk("%s ", server->data); | |
3676 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) | |
3677 | loc->nservers++; | |
3678 | else { | |
464ad6b1 CL |
3679 | unsigned int i; |
3680 | dprintk("%s: using first %u of %u servers " | |
3681 | "returned for location %u\n", | |
3110ff80 | 3682 | __func__, |
464ad6b1 CL |
3683 | NFS4_FS_LOCATION_MAXSERVERS, |
3684 | m, res->nlocations); | |
7aaa0b3b | 3685 | for (i = loc->nservers; i < m; i++) { |
2e42c3e2 | 3686 | unsigned int len; |
7aaa0b3b MN |
3687 | char *data; |
3688 | status = decode_opaque_inline(xdr, &len, &data); | |
3689 | if (unlikely(status != 0)) | |
3690 | goto out_eio; | |
3691 | } | |
3692 | } | |
3693 | } | |
3694 | status = decode_pathname(xdr, &loc->rootpath); | |
683b57b4 TM |
3695 | if (unlikely(status != 0)) |
3696 | goto out_eio; | |
7aaa0b3b | 3697 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
683b57b4 TM |
3698 | res->nlocations++; |
3699 | } | |
409924e4 | 3700 | if (res->nlocations != 0) |
81934ddb | 3701 | status = NFS_ATTR_FATTR_V4_LOCATIONS; |
683b57b4 | 3702 | out: |
3110ff80 | 3703 | dprintk("%s: fs_locations done, error = %d\n", __func__, status); |
683b57b4 | 3704 | return status; |
c0eae66e BH |
3705 | out_overflow: |
3706 | print_overflow_msg(__func__, xdr); | |
683b57b4 TM |
3707 | out_eio: |
3708 | status = -EIO; | |
3709 | goto out; | |
3710 | } | |
3711 | ||
1da177e4 LT |
3712 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
3713 | { | |
8687b63a | 3714 | __be32 *p; |
1da177e4 LT |
3715 | int status = 0; |
3716 | ||
3717 | *res = 0; | |
3718 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) | |
3719 | return -EIO; | |
3720 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { | |
c0eae66e BH |
3721 | p = xdr_inline_decode(xdr, 8); |
3722 | if (unlikely(!p)) | |
3723 | goto out_overflow; | |
cccddf4f | 3724 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3725 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; |
3726 | } | |
3110ff80 | 3727 | dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3728 | return status; |
c0eae66e BH |
3729 | out_overflow: |
3730 | print_overflow_msg(__func__, xdr); | |
3731 | return -EIO; | |
1da177e4 LT |
3732 | } |
3733 | ||
3734 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) | |
3735 | { | |
8687b63a | 3736 | __be32 *p; |
1da177e4 LT |
3737 | int status = 0; |
3738 | ||
3739 | *maxlink = 1; | |
3740 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) | |
3741 | return -EIO; | |
3742 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { | |
c0eae66e BH |
3743 | p = xdr_inline_decode(xdr, 4); |
3744 | if (unlikely(!p)) | |
3745 | goto out_overflow; | |
cccddf4f | 3746 | *maxlink = be32_to_cpup(p); |
1da177e4 LT |
3747 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; |
3748 | } | |
3110ff80 | 3749 | dprintk("%s: maxlink=%u\n", __func__, *maxlink); |
1da177e4 | 3750 | return status; |
c0eae66e BH |
3751 | out_overflow: |
3752 | print_overflow_msg(__func__, xdr); | |
3753 | return -EIO; | |
1da177e4 LT |
3754 | } |
3755 | ||
3756 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) | |
3757 | { | |
8687b63a | 3758 | __be32 *p; |
1da177e4 LT |
3759 | int status = 0; |
3760 | ||
3761 | *maxname = 1024; | |
3762 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) | |
3763 | return -EIO; | |
3764 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { | |
c0eae66e BH |
3765 | p = xdr_inline_decode(xdr, 4); |
3766 | if (unlikely(!p)) | |
3767 | goto out_overflow; | |
cccddf4f | 3768 | *maxname = be32_to_cpup(p); |
1da177e4 LT |
3769 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; |
3770 | } | |
3110ff80 | 3771 | dprintk("%s: maxname=%u\n", __func__, *maxname); |
1da177e4 | 3772 | return status; |
c0eae66e BH |
3773 | out_overflow: |
3774 | print_overflow_msg(__func__, xdr); | |
3775 | return -EIO; | |
1da177e4 LT |
3776 | } |
3777 | ||
3778 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
3779 | { | |
8687b63a | 3780 | __be32 *p; |
1da177e4 LT |
3781 | int status = 0; |
3782 | ||
3783 | *res = 1024; | |
3784 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) | |
3785 | return -EIO; | |
3786 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { | |
3787 | uint64_t maxread; | |
c0eae66e BH |
3788 | p = xdr_inline_decode(xdr, 8); |
3789 | if (unlikely(!p)) | |
3790 | goto out_overflow; | |
cccddf4f | 3791 | xdr_decode_hyper(p, &maxread); |
1da177e4 LT |
3792 | if (maxread > 0x7FFFFFFF) |
3793 | maxread = 0x7FFFFFFF; | |
3794 | *res = (uint32_t)maxread; | |
3795 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; | |
3796 | } | |
3110ff80 | 3797 | dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); |
1da177e4 | 3798 | return status; |
c0eae66e BH |
3799 | out_overflow: |
3800 | print_overflow_msg(__func__, xdr); | |
3801 | return -EIO; | |
1da177e4 LT |
3802 | } |
3803 | ||
3804 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
3805 | { | |
8687b63a | 3806 | __be32 *p; |
1da177e4 LT |
3807 | int status = 0; |
3808 | ||
3809 | *res = 1024; | |
3810 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) | |
3811 | return -EIO; | |
3812 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { | |
3813 | uint64_t maxwrite; | |
c0eae66e BH |
3814 | p = xdr_inline_decode(xdr, 8); |
3815 | if (unlikely(!p)) | |
3816 | goto out_overflow; | |
cccddf4f | 3817 | xdr_decode_hyper(p, &maxwrite); |
1da177e4 LT |
3818 | if (maxwrite > 0x7FFFFFFF) |
3819 | maxwrite = 0x7FFFFFFF; | |
3820 | *res = (uint32_t)maxwrite; | |
3821 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; | |
3822 | } | |
3110ff80 | 3823 | dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); |
1da177e4 | 3824 | return status; |
c0eae66e BH |
3825 | out_overflow: |
3826 | print_overflow_msg(__func__, xdr); | |
3827 | return -EIO; | |
1da177e4 LT |
3828 | } |
3829 | ||
bca79478 | 3830 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) |
1da177e4 | 3831 | { |
bca79478 | 3832 | uint32_t tmp; |
8687b63a | 3833 | __be32 *p; |
409924e4 | 3834 | int ret = 0; |
1da177e4 LT |
3835 | |
3836 | *mode = 0; | |
3837 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) | |
3838 | return -EIO; | |
3839 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { | |
c0eae66e BH |
3840 | p = xdr_inline_decode(xdr, 4); |
3841 | if (unlikely(!p)) | |
3842 | goto out_overflow; | |
cccddf4f | 3843 | tmp = be32_to_cpup(p); |
bca79478 | 3844 | *mode = tmp & ~S_IFMT; |
1da177e4 | 3845 | bitmap[1] &= ~FATTR4_WORD1_MODE; |
409924e4 | 3846 | ret = NFS_ATTR_FATTR_MODE; |
1da177e4 | 3847 | } |
3110ff80 | 3848 | dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); |
409924e4 | 3849 | return ret; |
c0eae66e BH |
3850 | out_overflow: |
3851 | print_overflow_msg(__func__, xdr); | |
3852 | return -EIO; | |
1da177e4 LT |
3853 | } |
3854 | ||
3855 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) | |
3856 | { | |
8687b63a | 3857 | __be32 *p; |
409924e4 | 3858 | int ret = 0; |
1da177e4 LT |
3859 | |
3860 | *nlink = 1; | |
3861 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) | |
3862 | return -EIO; | |
3863 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { | |
c0eae66e BH |
3864 | p = xdr_inline_decode(xdr, 4); |
3865 | if (unlikely(!p)) | |
3866 | goto out_overflow; | |
cccddf4f | 3867 | *nlink = be32_to_cpup(p); |
1da177e4 | 3868 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; |
409924e4 | 3869 | ret = NFS_ATTR_FATTR_NLINK; |
1da177e4 | 3870 | } |
3110ff80 | 3871 | dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); |
409924e4 | 3872 | return ret; |
c0eae66e BH |
3873 | out_overflow: |
3874 | print_overflow_msg(__func__, xdr); | |
3875 | return -EIO; | |
1da177e4 LT |
3876 | } |
3877 | ||
80e52ace | 3878 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, |
6926afd1 TM |
3879 | const struct nfs_server *server, uint32_t *uid, |
3880 | struct nfs4_string *owner_name) | |
1da177e4 | 3881 | { |
8687b63a AV |
3882 | uint32_t len; |
3883 | __be32 *p; | |
409924e4 | 3884 | int ret = 0; |
1da177e4 LT |
3885 | |
3886 | *uid = -2; | |
3887 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) | |
3888 | return -EIO; | |
3889 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { | |
c0eae66e BH |
3890 | p = xdr_inline_decode(xdr, 4); |
3891 | if (unlikely(!p)) | |
3892 | goto out_overflow; | |
cccddf4f | 3893 | len = be32_to_cpup(p); |
c0eae66e BH |
3894 | p = xdr_inline_decode(xdr, len); |
3895 | if (unlikely(!p)) | |
3896 | goto out_overflow; | |
6926afd1 TM |
3897 | if (owner_name != NULL) { |
3898 | owner_name->data = kmemdup(p, len, GFP_NOWAIT); | |
3899 | if (owner_name->data != NULL) { | |
3900 | owner_name->len = len; | |
3901 | ret = NFS_ATTR_FATTR_OWNER_NAME; | |
3902 | } | |
80e52ace | 3903 | } else if (len < XDR_MAX_NETOBJ) { |
e4fd72a1 | 3904 | if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) |
409924e4 TM |
3905 | ret = NFS_ATTR_FATTR_OWNER; |
3906 | else | |
1da177e4 | 3907 | dprintk("%s: nfs_map_name_to_uid failed!\n", |
3110ff80 | 3908 | __func__); |
1da177e4 | 3909 | } else |
fe82a183 | 3910 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3911 | __func__, len); |
1da177e4 LT |
3912 | bitmap[1] &= ~FATTR4_WORD1_OWNER; |
3913 | } | |
3110ff80 | 3914 | dprintk("%s: uid=%d\n", __func__, (int)*uid); |
409924e4 | 3915 | return ret; |
c0eae66e BH |
3916 | out_overflow: |
3917 | print_overflow_msg(__func__, xdr); | |
3918 | return -EIO; | |
1da177e4 LT |
3919 | } |
3920 | ||
80e52ace | 3921 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, |
6926afd1 TM |
3922 | const struct nfs_server *server, uint32_t *gid, |
3923 | struct nfs4_string *group_name) | |
1da177e4 | 3924 | { |
8687b63a AV |
3925 | uint32_t len; |
3926 | __be32 *p; | |
409924e4 | 3927 | int ret = 0; |
1da177e4 LT |
3928 | |
3929 | *gid = -2; | |
3930 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) | |
3931 | return -EIO; | |
3932 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { | |
c0eae66e BH |
3933 | p = xdr_inline_decode(xdr, 4); |
3934 | if (unlikely(!p)) | |
3935 | goto out_overflow; | |
cccddf4f | 3936 | len = be32_to_cpup(p); |
c0eae66e BH |
3937 | p = xdr_inline_decode(xdr, len); |
3938 | if (unlikely(!p)) | |
3939 | goto out_overflow; | |
6926afd1 TM |
3940 | if (group_name != NULL) { |
3941 | group_name->data = kmemdup(p, len, GFP_NOWAIT); | |
3942 | if (group_name->data != NULL) { | |
3943 | group_name->len = len; | |
3944 | ret = NFS_ATTR_FATTR_GROUP_NAME; | |
3945 | } | |
80e52ace | 3946 | } else if (len < XDR_MAX_NETOBJ) { |
e4fd72a1 | 3947 | if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) |
409924e4 TM |
3948 | ret = NFS_ATTR_FATTR_GROUP; |
3949 | else | |
1da177e4 | 3950 | dprintk("%s: nfs_map_group_to_gid failed!\n", |
3110ff80 | 3951 | __func__); |
1da177e4 | 3952 | } else |
fe82a183 | 3953 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3954 | __func__, len); |
1da177e4 LT |
3955 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; |
3956 | } | |
3110ff80 | 3957 | dprintk("%s: gid=%d\n", __func__, (int)*gid); |
409924e4 | 3958 | return ret; |
c0eae66e BH |
3959 | out_overflow: |
3960 | print_overflow_msg(__func__, xdr); | |
3961 | return -EIO; | |
1da177e4 LT |
3962 | } |
3963 | ||
3964 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) | |
3965 | { | |
8687b63a AV |
3966 | uint32_t major = 0, minor = 0; |
3967 | __be32 *p; | |
409924e4 | 3968 | int ret = 0; |
1da177e4 LT |
3969 | |
3970 | *rdev = MKDEV(0,0); | |
3971 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) | |
3972 | return -EIO; | |
3973 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { | |
3974 | dev_t tmp; | |
3975 | ||
c0eae66e BH |
3976 | p = xdr_inline_decode(xdr, 8); |
3977 | if (unlikely(!p)) | |
3978 | goto out_overflow; | |
6f723f77 | 3979 | major = be32_to_cpup(p++); |
cccddf4f | 3980 | minor = be32_to_cpup(p); |
1da177e4 LT |
3981 | tmp = MKDEV(major, minor); |
3982 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) | |
3983 | *rdev = tmp; | |
3984 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; | |
409924e4 | 3985 | ret = NFS_ATTR_FATTR_RDEV; |
1da177e4 | 3986 | } |
3110ff80 | 3987 | dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); |
409924e4 | 3988 | return ret; |
c0eae66e BH |
3989 | out_overflow: |
3990 | print_overflow_msg(__func__, xdr); | |
3991 | return -EIO; | |
1da177e4 LT |
3992 | } |
3993 | ||
3994 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3995 | { | |
8687b63a | 3996 | __be32 *p; |
1da177e4 LT |
3997 | int status = 0; |
3998 | ||
3999 | *res = 0; | |
4000 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) | |
4001 | return -EIO; | |
4002 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { | |
c0eae66e BH |
4003 | p = xdr_inline_decode(xdr, 8); |
4004 | if (unlikely(!p)) | |
4005 | goto out_overflow; | |
cccddf4f | 4006 | xdr_decode_hyper(p, res); |
1da177e4 LT |
4007 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; |
4008 | } | |
3110ff80 | 4009 | dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 4010 | return status; |
c0eae66e BH |
4011 | out_overflow: |
4012 | print_overflow_msg(__func__, xdr); | |
4013 | return -EIO; | |
1da177e4 LT |
4014 | } |
4015 | ||
4016 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
4017 | { | |
8687b63a | 4018 | __be32 *p; |
1da177e4 LT |
4019 | int status = 0; |
4020 | ||
4021 | *res = 0; | |
4022 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) | |
4023 | return -EIO; | |
4024 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { | |
c0eae66e BH |
4025 | p = xdr_inline_decode(xdr, 8); |
4026 | if (unlikely(!p)) | |
4027 | goto out_overflow; | |
cccddf4f | 4028 | xdr_decode_hyper(p, res); |
1da177e4 LT |
4029 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; |
4030 | } | |
3110ff80 | 4031 | dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 4032 | return status; |
c0eae66e BH |
4033 | out_overflow: |
4034 | print_overflow_msg(__func__, xdr); | |
4035 | return -EIO; | |
1da177e4 LT |
4036 | } |
4037 | ||
4038 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
4039 | { | |
8687b63a | 4040 | __be32 *p; |
1da177e4 LT |
4041 | int status = 0; |
4042 | ||
4043 | *res = 0; | |
4044 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) | |
4045 | return -EIO; | |
4046 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { | |
c0eae66e BH |
4047 | p = xdr_inline_decode(xdr, 8); |
4048 | if (unlikely(!p)) | |
4049 | goto out_overflow; | |
cccddf4f | 4050 | xdr_decode_hyper(p, res); |
1da177e4 LT |
4051 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; |
4052 | } | |
3110ff80 | 4053 | dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 4054 | return status; |
c0eae66e BH |
4055 | out_overflow: |
4056 | print_overflow_msg(__func__, xdr); | |
4057 | return -EIO; | |
1da177e4 LT |
4058 | } |
4059 | ||
4060 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) | |
4061 | { | |
8687b63a | 4062 | __be32 *p; |
409924e4 | 4063 | int ret = 0; |
1da177e4 LT |
4064 | |
4065 | *used = 0; | |
4066 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) | |
4067 | return -EIO; | |
4068 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { | |
c0eae66e BH |
4069 | p = xdr_inline_decode(xdr, 8); |
4070 | if (unlikely(!p)) | |
4071 | goto out_overflow; | |
cccddf4f | 4072 | xdr_decode_hyper(p, used); |
1da177e4 | 4073 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; |
409924e4 | 4074 | ret = NFS_ATTR_FATTR_SPACE_USED; |
1da177e4 | 4075 | } |
3110ff80 | 4076 | dprintk("%s: space used=%Lu\n", __func__, |
1da177e4 | 4077 | (unsigned long long)*used); |
409924e4 | 4078 | return ret; |
c0eae66e BH |
4079 | out_overflow: |
4080 | print_overflow_msg(__func__, xdr); | |
4081 | return -EIO; | |
1da177e4 LT |
4082 | } |
4083 | ||
4084 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) | |
4085 | { | |
8687b63a | 4086 | __be32 *p; |
1da177e4 LT |
4087 | uint64_t sec; |
4088 | uint32_t nsec; | |
4089 | ||
c0eae66e BH |
4090 | p = xdr_inline_decode(xdr, 12); |
4091 | if (unlikely(!p)) | |
4092 | goto out_overflow; | |
3ceb4dbb | 4093 | p = xdr_decode_hyper(p, &sec); |
cccddf4f | 4094 | nsec = be32_to_cpup(p); |
1da177e4 LT |
4095 | time->tv_sec = (time_t)sec; |
4096 | time->tv_nsec = (long)nsec; | |
4097 | return 0; | |
c0eae66e BH |
4098 | out_overflow: |
4099 | print_overflow_msg(__func__, xdr); | |
4100 | return -EIO; | |
1da177e4 LT |
4101 | } |
4102 | ||
4103 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
4104 | { | |
4105 | int status = 0; | |
4106 | ||
4107 | time->tv_sec = 0; | |
4108 | time->tv_nsec = 0; | |
4109 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) | |
4110 | return -EIO; | |
4111 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { | |
4112 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
4113 | if (status == 0) |
4114 | status = NFS_ATTR_FATTR_ATIME; | |
1da177e4 LT |
4115 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; |
4116 | } | |
3110ff80 | 4117 | dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
4118 | return status; |
4119 | } | |
4120 | ||
4121 | static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
4122 | { | |
4123 | int status = 0; | |
4124 | ||
4125 | time->tv_sec = 0; | |
4126 | time->tv_nsec = 0; | |
4127 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) | |
4128 | return -EIO; | |
4129 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { | |
4130 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
4131 | if (status == 0) |
4132 | status = NFS_ATTR_FATTR_CTIME; | |
1da177e4 LT |
4133 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; |
4134 | } | |
3110ff80 | 4135 | dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
4136 | return status; |
4137 | } | |
4138 | ||
55b6e774 RL |
4139 | static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, |
4140 | struct timespec *time) | |
4141 | { | |
4142 | int status = 0; | |
4143 | ||
4144 | time->tv_sec = 0; | |
4145 | time->tv_nsec = 0; | |
4146 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) | |
4147 | return -EIO; | |
4148 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { | |
4149 | status = decode_attr_time(xdr, time); | |
4150 | bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; | |
4151 | } | |
4152 | dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, | |
4153 | (long)time->tv_nsec); | |
4154 | return status; | |
4155 | } | |
4156 | ||
1da177e4 LT |
4157 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) |
4158 | { | |
4159 | int status = 0; | |
4160 | ||
4161 | time->tv_sec = 0; | |
4162 | time->tv_nsec = 0; | |
4163 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) | |
4164 | return -EIO; | |
4165 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { | |
4166 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
4167 | if (status == 0) |
4168 | status = NFS_ATTR_FATTR_MTIME; | |
1da177e4 LT |
4169 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; |
4170 | } | |
3110ff80 | 4171 | dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
4172 | return status; |
4173 | } | |
4174 | ||
8687b63a | 4175 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
1da177e4 LT |
4176 | { |
4177 | unsigned int attrwords = XDR_QUADLEN(attrlen); | |
4178 | unsigned int nwords = xdr->p - savep; | |
4179 | ||
4180 | if (unlikely(attrwords != nwords)) { | |
fe82a183 CL |
4181 | dprintk("%s: server returned incorrect attribute length: " |
4182 | "%u %c %u\n", | |
3110ff80 | 4183 | __func__, |
1da177e4 LT |
4184 | attrwords << 2, |
4185 | (attrwords < nwords) ? '<' : '>', | |
4186 | nwords << 2); | |
4187 | return -EIO; | |
4188 | } | |
4189 | return 0; | |
4190 | } | |
4191 | ||
4192 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
4193 | { | |
8687b63a | 4194 | __be32 *p; |
1da177e4 | 4195 | |
c0eae66e BH |
4196 | p = xdr_inline_decode(xdr, 20); |
4197 | if (unlikely(!p)) | |
4198 | goto out_overflow; | |
6f723f77 | 4199 | cinfo->atomic = be32_to_cpup(p++); |
3ceb4dbb | 4200 | p = xdr_decode_hyper(p, &cinfo->before); |
cccddf4f | 4201 | xdr_decode_hyper(p, &cinfo->after); |
1da177e4 | 4202 | return 0; |
c0eae66e BH |
4203 | out_overflow: |
4204 | print_overflow_msg(__func__, xdr); | |
4205 | return -EIO; | |
1da177e4 LT |
4206 | } |
4207 | ||
4208 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) | |
4209 | { | |
8687b63a | 4210 | __be32 *p; |
1da177e4 LT |
4211 | uint32_t supp, acc; |
4212 | int status; | |
4213 | ||
4214 | status = decode_op_hdr(xdr, OP_ACCESS); | |
4215 | if (status) | |
4216 | return status; | |
c0eae66e BH |
4217 | p = xdr_inline_decode(xdr, 8); |
4218 | if (unlikely(!p)) | |
4219 | goto out_overflow; | |
6f723f77 | 4220 | supp = be32_to_cpup(p++); |
cccddf4f | 4221 | acc = be32_to_cpup(p); |
1da177e4 LT |
4222 | access->supported = supp; |
4223 | access->access = acc; | |
4224 | return 0; | |
c0eae66e BH |
4225 | out_overflow: |
4226 | print_overflow_msg(__func__, xdr); | |
4227 | return -EIO; | |
1da177e4 LT |
4228 | } |
4229 | ||
07d30434 | 4230 | static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) |
1da177e4 | 4231 | { |
8687b63a | 4232 | __be32 *p; |
07d30434 BH |
4233 | |
4234 | p = xdr_inline_decode(xdr, len); | |
4235 | if (likely(p)) { | |
4236 | memcpy(buf, p, len); | |
4237 | return 0; | |
4238 | } | |
4239 | print_overflow_msg(__func__, xdr); | |
4240 | return -EIO; | |
4241 | } | |
4242 | ||
4243 | static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) | |
4244 | { | |
2d2f24ad | 4245 | return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); |
07d30434 BH |
4246 | } |
4247 | ||
4248 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) | |
4249 | { | |
1da177e4 LT |
4250 | int status; |
4251 | ||
4252 | status = decode_op_hdr(xdr, OP_CLOSE); | |
c1d51931 TM |
4253 | if (status != -EIO) |
4254 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
4255 | if (!status) |
4256 | status = decode_stateid(xdr, &res->stateid); | |
4257 | return status; | |
1da177e4 LT |
4258 | } |
4259 | ||
db942bbd BH |
4260 | static int decode_verifier(struct xdr_stream *xdr, void *verifier) |
4261 | { | |
4262 | return decode_opaque_fixed(xdr, verifier, 8); | |
1da177e4 LT |
4263 | } |
4264 | ||
4265 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) | |
4266 | { | |
1da177e4 LT |
4267 | int status; |
4268 | ||
4269 | status = decode_op_hdr(xdr, OP_COMMIT); | |
db942bbd BH |
4270 | if (!status) |
4271 | status = decode_verifier(xdr, res->verf->verifier); | |
4272 | return status; | |
1da177e4 LT |
4273 | } |
4274 | ||
4275 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
4276 | { | |
8687b63a | 4277 | __be32 *p; |
1da177e4 LT |
4278 | uint32_t bmlen; |
4279 | int status; | |
4280 | ||
4281 | status = decode_op_hdr(xdr, OP_CREATE); | |
4282 | if (status) | |
4283 | return status; | |
4284 | if ((status = decode_change_info(xdr, cinfo))) | |
4285 | return status; | |
c0eae66e BH |
4286 | p = xdr_inline_decode(xdr, 4); |
4287 | if (unlikely(!p)) | |
4288 | goto out_overflow; | |
cccddf4f | 4289 | bmlen = be32_to_cpup(p); |
c0eae66e BH |
4290 | p = xdr_inline_decode(xdr, bmlen << 2); |
4291 | if (likely(p)) | |
4292 | return 0; | |
4293 | out_overflow: | |
4294 | print_overflow_msg(__func__, xdr); | |
4295 | return -EIO; | |
1da177e4 LT |
4296 | } |
4297 | ||
4298 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) | |
4299 | { | |
8687b63a | 4300 | __be32 *savep; |
dae100c2 | 4301 | uint32_t attrlen, bitmap[3] = {0}; |
1da177e4 LT |
4302 | int status; |
4303 | ||
4304 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
4305 | goto xdr_error; | |
4306 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
4307 | goto xdr_error; | |
4308 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
4309 | goto xdr_error; | |
4310 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) | |
4311 | goto xdr_error; | |
264e6351 CL |
4312 | if ((status = decode_attr_fh_expire_type(xdr, bitmap, |
4313 | &res->fh_expire_type)) != 0) | |
4314 | goto xdr_error; | |
1da177e4 LT |
4315 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) |
4316 | goto xdr_error; | |
4317 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) | |
4318 | goto xdr_error; | |
4319 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) | |
4320 | goto xdr_error; | |
4321 | status = verify_attr_len(xdr, savep, attrlen); | |
4322 | xdr_error: | |
3110ff80 | 4323 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
4324 | return status; |
4325 | } | |
6c0195a4 | 4326 | |
1da177e4 LT |
4327 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) |
4328 | { | |
8687b63a | 4329 | __be32 *savep; |
dae100c2 | 4330 | uint32_t attrlen, bitmap[3] = {0}; |
1da177e4 | 4331 | int status; |
6c0195a4 | 4332 | |
1da177e4 LT |
4333 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
4334 | goto xdr_error; | |
4335 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
4336 | goto xdr_error; | |
4337 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
4338 | goto xdr_error; | |
4339 | ||
4340 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) | |
4341 | goto xdr_error; | |
4342 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) | |
4343 | goto xdr_error; | |
4344 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) | |
4345 | goto xdr_error; | |
4346 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) | |
4347 | goto xdr_error; | |
4348 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) | |
4349 | goto xdr_error; | |
4350 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) | |
4351 | goto xdr_error; | |
4352 | ||
4353 | status = verify_attr_len(xdr, savep, attrlen); | |
4354 | xdr_error: | |
3110ff80 | 4355 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
4356 | return status; |
4357 | } | |
4358 | ||
4359 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) | |
4360 | { | |
8687b63a | 4361 | __be32 *savep; |
dae100c2 | 4362 | uint32_t attrlen, bitmap[3] = {0}; |
1da177e4 | 4363 | int status; |
6c0195a4 | 4364 | |
1da177e4 LT |
4365 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
4366 | goto xdr_error; | |
4367 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
4368 | goto xdr_error; | |
4369 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
4370 | goto xdr_error; | |
4371 | ||
4372 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) | |
4373 | goto xdr_error; | |
4374 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) | |
4375 | goto xdr_error; | |
4376 | ||
4377 | status = verify_attr_len(xdr, savep, attrlen); | |
4378 | xdr_error: | |
3110ff80 | 4379 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
4380 | return status; |
4381 | } | |
4382 | ||
ae42c70a BS |
4383 | static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, |
4384 | struct nfs_fattr *fattr, struct nfs_fh *fh, | |
8b7e3f49 | 4385 | struct nfs4_fs_locations *fs_loc, |
6926afd1 | 4386 | const struct nfs_server *server) |
1da177e4 | 4387 | { |
bca79478 TM |
4388 | int status; |
4389 | umode_t fmode = 0; | |
ae42c70a | 4390 | uint32_t type; |
ee7b75fc | 4391 | int32_t err; |
1da177e4 | 4392 | |
f26c7a78 TM |
4393 | status = decode_attr_type(xdr, bitmap, &type); |
4394 | if (status < 0) | |
1da177e4 | 4395 | goto xdr_error; |
409924e4 TM |
4396 | fattr->mode = 0; |
4397 | if (status != 0) { | |
4398 | fattr->mode |= nfs_type2fmt[type]; | |
4399 | fattr->valid |= status; | |
4400 | } | |
1da177e4 | 4401 | |
f26c7a78 TM |
4402 | status = decode_attr_change(xdr, bitmap, &fattr->change_attr); |
4403 | if (status < 0) | |
1da177e4 | 4404 | goto xdr_error; |
409924e4 | 4405 | fattr->valid |= status; |
f26c7a78 TM |
4406 | |
4407 | status = decode_attr_size(xdr, bitmap, &fattr->size); | |
4408 | if (status < 0) | |
1da177e4 | 4409 | goto xdr_error; |
409924e4 | 4410 | fattr->valid |= status; |
f26c7a78 TM |
4411 | |
4412 | status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); | |
4413 | if (status < 0) | |
1da177e4 | 4414 | goto xdr_error; |
409924e4 | 4415 | fattr->valid |= status; |
f26c7a78 | 4416 | |
ee7b75fc TM |
4417 | err = 0; |
4418 | status = decode_attr_error(xdr, bitmap, &err); | |
ae42c70a BS |
4419 | if (status < 0) |
4420 | goto xdr_error; | |
ee7b75fc TM |
4421 | if (err == -NFS4ERR_WRONGSEC) |
4422 | nfs_fixup_secinfo_attributes(fattr, fh); | |
ae42c70a BS |
4423 | |
4424 | status = decode_attr_filehandle(xdr, bitmap, fh); | |
4425 | if (status < 0) | |
4426 | goto xdr_error; | |
4427 | ||
f26c7a78 TM |
4428 | status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); |
4429 | if (status < 0) | |
1da177e4 | 4430 | goto xdr_error; |
409924e4 | 4431 | fattr->valid |= status; |
f26c7a78 | 4432 | |
8b7e3f49 | 4433 | status = decode_attr_fs_locations(xdr, bitmap, fs_loc); |
f26c7a78 | 4434 | if (status < 0) |
683b57b4 | 4435 | goto xdr_error; |
409924e4 | 4436 | fattr->valid |= status; |
f26c7a78 TM |
4437 | |
4438 | status = decode_attr_mode(xdr, bitmap, &fmode); | |
4439 | if (status < 0) | |
1da177e4 | 4440 | goto xdr_error; |
409924e4 TM |
4441 | if (status != 0) { |
4442 | fattr->mode |= fmode; | |
4443 | fattr->valid |= status; | |
4444 | } | |
f26c7a78 TM |
4445 | |
4446 | status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); | |
4447 | if (status < 0) | |
1da177e4 | 4448 | goto xdr_error; |
409924e4 | 4449 | fattr->valid |= status; |
f26c7a78 | 4450 | |
6926afd1 | 4451 | status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); |
f26c7a78 | 4452 | if (status < 0) |
1da177e4 | 4453 | goto xdr_error; |
409924e4 | 4454 | fattr->valid |= status; |
f26c7a78 | 4455 | |
6926afd1 | 4456 | status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); |
f26c7a78 | 4457 | if (status < 0) |
1da177e4 | 4458 | goto xdr_error; |
409924e4 | 4459 | fattr->valid |= status; |
f26c7a78 TM |
4460 | |
4461 | status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); | |
4462 | if (status < 0) | |
1da177e4 | 4463 | goto xdr_error; |
409924e4 | 4464 | fattr->valid |= status; |
f26c7a78 TM |
4465 | |
4466 | status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); | |
4467 | if (status < 0) | |
1da177e4 | 4468 | goto xdr_error; |
409924e4 | 4469 | fattr->valid |= status; |
f26c7a78 TM |
4470 | |
4471 | status = decode_attr_time_access(xdr, bitmap, &fattr->atime); | |
4472 | if (status < 0) | |
1da177e4 | 4473 | goto xdr_error; |
409924e4 | 4474 | fattr->valid |= status; |
f26c7a78 TM |
4475 | |
4476 | status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); | |
4477 | if (status < 0) | |
1da177e4 | 4478 | goto xdr_error; |
409924e4 | 4479 | fattr->valid |= status; |
f26c7a78 TM |
4480 | |
4481 | status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); | |
4482 | if (status < 0) | |
1da177e4 | 4483 | goto xdr_error; |
409924e4 | 4484 | fattr->valid |= status; |
f26c7a78 | 4485 | |
28331a46 | 4486 | status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); |
f26c7a78 | 4487 | if (status < 0) |
99baf625 | 4488 | goto xdr_error; |
28331a46 | 4489 | fattr->valid |= status; |
f26c7a78 | 4490 | |
ae42c70a BS |
4491 | xdr_error: |
4492 | dprintk("%s: xdr returned %d\n", __func__, -status); | |
4493 | return status; | |
4494 | } | |
4495 | ||
4496 | static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, | |
8b7e3f49 TM |
4497 | struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, |
4498 | const struct nfs_server *server) | |
ae42c70a BS |
4499 | { |
4500 | __be32 *savep; | |
4501 | uint32_t attrlen, | |
dae100c2 | 4502 | bitmap[3] = {0}; |
ae42c70a BS |
4503 | int status; |
4504 | ||
4505 | status = decode_op_hdr(xdr, OP_GETATTR); | |
4506 | if (status < 0) | |
4507 | goto xdr_error; | |
4508 | ||
4509 | status = decode_attr_bitmap(xdr, bitmap); | |
4510 | if (status < 0) | |
4511 | goto xdr_error; | |
4512 | ||
4513 | status = decode_attr_length(xdr, &attrlen, &savep); | |
4514 | if (status < 0) | |
4515 | goto xdr_error; | |
4516 | ||
8b7e3f49 | 4517 | status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, server); |
ae42c70a BS |
4518 | if (status < 0) |
4519 | goto xdr_error; | |
4520 | ||
f26c7a78 | 4521 | status = verify_attr_len(xdr, savep, attrlen); |
1da177e4 | 4522 | xdr_error: |
3110ff80 | 4523 | dprintk("%s: xdr returned %d\n", __func__, -status); |
1da177e4 LT |
4524 | return status; |
4525 | } | |
4526 | ||
ae42c70a | 4527 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, |
6926afd1 | 4528 | const struct nfs_server *server) |
ae42c70a | 4529 | { |
8b7e3f49 | 4530 | return decode_getfattr_generic(xdr, fattr, NULL, NULL, server); |
ae42c70a | 4531 | } |
1da177e4 | 4532 | |
504913fb AA |
4533 | /* |
4534 | * Decode potentially multiple layout types. Currently we only support | |
4535 | * one layout driver per file system. | |
4536 | */ | |
4537 | static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, | |
4538 | uint32_t *layouttype) | |
4539 | { | |
4540 | uint32_t *p; | |
4541 | int num; | |
4542 | ||
4543 | p = xdr_inline_decode(xdr, 4); | |
4544 | if (unlikely(!p)) | |
4545 | goto out_overflow; | |
4546 | num = be32_to_cpup(p); | |
4547 | ||
4548 | /* pNFS is not supported by the underlying file system */ | |
4549 | if (num == 0) { | |
4550 | *layouttype = 0; | |
4551 | return 0; | |
4552 | } | |
4553 | if (num > 1) | |
a030889a WAA |
4554 | printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout " |
4555 | "drivers per filesystem not supported\n", __func__); | |
504913fb AA |
4556 | |
4557 | /* Decode and set first layout type, move xdr->p past unused types */ | |
4558 | p = xdr_inline_decode(xdr, num * 4); | |
4559 | if (unlikely(!p)) | |
4560 | goto out_overflow; | |
4561 | *layouttype = be32_to_cpup(p); | |
4562 | return 0; | |
4563 | out_overflow: | |
4564 | print_overflow_msg(__func__, xdr); | |
4565 | return -EIO; | |
4566 | } | |
4567 | ||
4568 | /* | |
4569 | * The type of file system exported. | |
4570 | * Note we must ensure that layouttype is set in any non-error case. | |
4571 | */ | |
4572 | static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, | |
4573 | uint32_t *layouttype) | |
4574 | { | |
4575 | int status = 0; | |
4576 | ||
4577 | dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); | |
4578 | if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) | |
4579 | return -EIO; | |
4580 | if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { | |
4581 | status = decode_first_pnfs_layout_type(xdr, layouttype); | |
4582 | bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; | |
4583 | } else | |
4584 | *layouttype = 0; | |
4585 | return status; | |
4586 | } | |
4587 | ||
dae100c2 FI |
4588 | /* |
4589 | * The prefered block size for layout directed io | |
4590 | */ | |
4591 | static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, | |
4592 | uint32_t *res) | |
4593 | { | |
4594 | __be32 *p; | |
4595 | ||
4596 | dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); | |
4597 | *res = 0; | |
4598 | if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { | |
4599 | p = xdr_inline_decode(xdr, 4); | |
4600 | if (unlikely(!p)) { | |
4601 | print_overflow_msg(__func__, xdr); | |
4602 | return -EIO; | |
4603 | } | |
4604 | *res = be32_to_cpup(p); | |
4605 | bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; | |
4606 | } | |
4607 | return 0; | |
4608 | } | |
4609 | ||
1da177e4 LT |
4610 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) |
4611 | { | |
8687b63a | 4612 | __be32 *savep; |
dae100c2 | 4613 | uint32_t attrlen, bitmap[3]; |
1da177e4 LT |
4614 | int status; |
4615 | ||
4616 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
4617 | goto xdr_error; | |
4618 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
4619 | goto xdr_error; | |
4620 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
4621 | goto xdr_error; | |
4622 | ||
4623 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ | |
4624 | ||
4625 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) | |
4626 | goto xdr_error; | |
4627 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) | |
4628 | goto xdr_error; | |
4629 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) | |
4630 | goto xdr_error; | |
4631 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; | |
4632 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) | |
4633 | goto xdr_error; | |
4634 | fsinfo->wtpref = fsinfo->wtmax; | |
55b6e774 | 4635 | status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); |
504913fb AA |
4636 | if (status != 0) |
4637 | goto xdr_error; | |
4638 | status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); | |
55b6e774 RL |
4639 | if (status != 0) |
4640 | goto xdr_error; | |
dae100c2 FI |
4641 | status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); |
4642 | if (status) | |
4643 | goto xdr_error; | |
1da177e4 LT |
4644 | |
4645 | status = verify_attr_len(xdr, savep, attrlen); | |
4646 | xdr_error: | |
3110ff80 | 4647 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
4648 | return status; |
4649 | } | |
4650 | ||
4651 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) | |
4652 | { | |
8687b63a | 4653 | __be32 *p; |
1da177e4 LT |
4654 | uint32_t len; |
4655 | int status; | |
4656 | ||
9936781d TM |
4657 | /* Zero handle first to allow comparisons */ |
4658 | memset(fh, 0, sizeof(*fh)); | |
4659 | ||
1da177e4 LT |
4660 | status = decode_op_hdr(xdr, OP_GETFH); |
4661 | if (status) | |
4662 | return status; | |
1da177e4 | 4663 | |
c0eae66e BH |
4664 | p = xdr_inline_decode(xdr, 4); |
4665 | if (unlikely(!p)) | |
4666 | goto out_overflow; | |
cccddf4f | 4667 | len = be32_to_cpup(p); |
1da177e4 LT |
4668 | if (len > NFS4_FHSIZE) |
4669 | return -EIO; | |
4670 | fh->size = len; | |
c0eae66e BH |
4671 | p = xdr_inline_decode(xdr, len); |
4672 | if (unlikely(!p)) | |
4673 | goto out_overflow; | |
99398d06 | 4674 | memcpy(fh->data, p, len); |
1da177e4 | 4675 | return 0; |
c0eae66e BH |
4676 | out_overflow: |
4677 | print_overflow_msg(__func__, xdr); | |
4678 | return -EIO; | |
1da177e4 LT |
4679 | } |
4680 | ||
4681 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
4682 | { | |
4683 | int status; | |
6c0195a4 | 4684 | |
1da177e4 LT |
4685 | status = decode_op_hdr(xdr, OP_LINK); |
4686 | if (status) | |
4687 | return status; | |
4688 | return decode_change_info(xdr, cinfo); | |
4689 | } | |
4690 | ||
4691 | /* | |
4692 | * We create the owner, so we know a proper owner.id length is 4. | |
4693 | */ | |
911d1aaf | 4694 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
1da177e4 | 4695 | { |
911d1aaf | 4696 | uint64_t offset, length, clientid; |
8687b63a | 4697 | __be32 *p; |
911d1aaf | 4698 | uint32_t namelen, type; |
1da177e4 | 4699 | |
babddc72 | 4700 | p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ |
c0eae66e BH |
4701 | if (unlikely(!p)) |
4702 | goto out_overflow; | |
babddc72 | 4703 | p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ |
3ceb4dbb | 4704 | p = xdr_decode_hyper(p, &length); |
babddc72 BS |
4705 | type = be32_to_cpup(p++); /* 4 byte read */ |
4706 | if (fl != NULL) { /* manipulate file lock */ | |
911d1aaf TM |
4707 | fl->fl_start = (loff_t)offset; |
4708 | fl->fl_end = fl->fl_start + (loff_t)length - 1; | |
4709 | if (length == ~(uint64_t)0) | |
4710 | fl->fl_end = OFFSET_MAX; | |
4711 | fl->fl_type = F_WRLCK; | |
4712 | if (type & 1) | |
4713 | fl->fl_type = F_RDLCK; | |
4714 | fl->fl_pid = 0; | |
4715 | } | |
babddc72 BS |
4716 | p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ |
4717 | namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ | |
4718 | p = xdr_inline_decode(xdr, namelen); /* variable size field */ | |
c0eae66e BH |
4719 | if (likely(p)) |
4720 | return -NFS4ERR_DENIED; | |
4721 | out_overflow: | |
4722 | print_overflow_msg(__func__, xdr); | |
4723 | return -EIO; | |
1da177e4 LT |
4724 | } |
4725 | ||
911d1aaf | 4726 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
1da177e4 | 4727 | { |
1da177e4 LT |
4728 | int status; |
4729 | ||
4730 | status = decode_op_hdr(xdr, OP_LOCK); | |
c1d51931 TM |
4731 | if (status == -EIO) |
4732 | goto out; | |
1da177e4 | 4733 | if (status == 0) { |
07d30434 BH |
4734 | status = decode_stateid(xdr, &res->stateid); |
4735 | if (unlikely(status)) | |
4736 | goto out; | |
1da177e4 | 4737 | } else if (status == -NFS4ERR_DENIED) |
c1d51931 TM |
4738 | status = decode_lock_denied(xdr, NULL); |
4739 | if (res->open_seqid != NULL) | |
4740 | nfs_increment_open_seqid(status, res->open_seqid); | |
4741 | nfs_increment_lock_seqid(status, res->lock_seqid); | |
4742 | out: | |
1da177e4 LT |
4743 | return status; |
4744 | } | |
4745 | ||
911d1aaf | 4746 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
1da177e4 LT |
4747 | { |
4748 | int status; | |
4749 | status = decode_op_hdr(xdr, OP_LOCKT); | |
4750 | if (status == -NFS4ERR_DENIED) | |
911d1aaf | 4751 | return decode_lock_denied(xdr, res->denied); |
1da177e4 LT |
4752 | return status; |
4753 | } | |
4754 | ||
911d1aaf | 4755 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
1da177e4 | 4756 | { |
1da177e4 LT |
4757 | int status; |
4758 | ||
4759 | status = decode_op_hdr(xdr, OP_LOCKU); | |
c1d51931 TM |
4760 | if (status != -EIO) |
4761 | nfs_increment_lock_seqid(status, res->seqid); | |
07d30434 BH |
4762 | if (status == 0) |
4763 | status = decode_stateid(xdr, &res->stateid); | |
1da177e4 LT |
4764 | return status; |
4765 | } | |
4766 | ||
d3c7b7cc TM |
4767 | static int decode_release_lockowner(struct xdr_stream *xdr) |
4768 | { | |
4769 | return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); | |
4770 | } | |
4771 | ||
1da177e4 LT |
4772 | static int decode_lookup(struct xdr_stream *xdr) |
4773 | { | |
4774 | return decode_op_hdr(xdr, OP_LOOKUP); | |
4775 | } | |
4776 | ||
4777 | /* This is too sick! */ | |
4778 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) | |
4779 | { | |
05d564fe | 4780 | __be32 *p; |
1da177e4 LT |
4781 | uint32_t limit_type, nblocks, blocksize; |
4782 | ||
c0eae66e BH |
4783 | p = xdr_inline_decode(xdr, 12); |
4784 | if (unlikely(!p)) | |
4785 | goto out_overflow; | |
6f723f77 | 4786 | limit_type = be32_to_cpup(p++); |
1da177e4 | 4787 | switch (limit_type) { |
05d564fe | 4788 | case 1: |
cccddf4f | 4789 | xdr_decode_hyper(p, maxsize); |
05d564fe AA |
4790 | break; |
4791 | case 2: | |
6f723f77 | 4792 | nblocks = be32_to_cpup(p++); |
cccddf4f | 4793 | blocksize = be32_to_cpup(p); |
05d564fe | 4794 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; |
1da177e4 LT |
4795 | } |
4796 | return 0; | |
c0eae66e BH |
4797 | out_overflow: |
4798 | print_overflow_msg(__func__, xdr); | |
4799 | return -EIO; | |
1da177e4 LT |
4800 | } |
4801 | ||
4802 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) | |
4803 | { | |
05d564fe AA |
4804 | __be32 *p; |
4805 | uint32_t delegation_type; | |
07d30434 | 4806 | int status; |
1da177e4 | 4807 | |
c0eae66e BH |
4808 | p = xdr_inline_decode(xdr, 4); |
4809 | if (unlikely(!p)) | |
4810 | goto out_overflow; | |
cccddf4f | 4811 | delegation_type = be32_to_cpup(p); |
1da177e4 LT |
4812 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { |
4813 | res->delegation_type = 0; | |
4814 | return 0; | |
4815 | } | |
07d30434 BH |
4816 | status = decode_stateid(xdr, &res->delegation); |
4817 | if (unlikely(status)) | |
4818 | return status; | |
c0eae66e BH |
4819 | p = xdr_inline_decode(xdr, 4); |
4820 | if (unlikely(!p)) | |
4821 | goto out_overflow; | |
cccddf4f | 4822 | res->do_recall = be32_to_cpup(p); |
05d564fe | 4823 | |
1da177e4 | 4824 | switch (delegation_type) { |
05d564fe AA |
4825 | case NFS4_OPEN_DELEGATE_READ: |
4826 | res->delegation_type = FMODE_READ; | |
4827 | break; | |
4828 | case NFS4_OPEN_DELEGATE_WRITE: | |
4829 | res->delegation_type = FMODE_WRITE|FMODE_READ; | |
4830 | if (decode_space_limit(xdr, &res->maxsize) < 0) | |
1da177e4 LT |
4831 | return -EIO; |
4832 | } | |
7539bbab | 4833 | return decode_ace(xdr, NULL, res->server->nfs_client); |
c0eae66e BH |
4834 | out_overflow: |
4835 | print_overflow_msg(__func__, xdr); | |
4836 | return -EIO; | |
1da177e4 LT |
4837 | } |
4838 | ||
4839 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) | |
4840 | { | |
05d564fe | 4841 | __be32 *p; |
aa53ed54 | 4842 | uint32_t savewords, bmlen, i; |
05d564fe | 4843 | int status; |
1da177e4 | 4844 | |
05d564fe | 4845 | status = decode_op_hdr(xdr, OP_OPEN); |
c1d51931 TM |
4846 | if (status != -EIO) |
4847 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
4848 | if (!status) |
4849 | status = decode_stateid(xdr, &res->stateid); | |
4850 | if (unlikely(status)) | |
05d564fe | 4851 | return status; |
1da177e4 | 4852 | |
05d564fe | 4853 | decode_change_info(xdr, &res->cinfo); |
1da177e4 | 4854 | |
c0eae66e BH |
4855 | p = xdr_inline_decode(xdr, 8); |
4856 | if (unlikely(!p)) | |
4857 | goto out_overflow; | |
6f723f77 | 4858 | res->rflags = be32_to_cpup(p++); |
cccddf4f | 4859 | bmlen = be32_to_cpup(p); |
05d564fe AA |
4860 | if (bmlen > 10) |
4861 | goto xdr_error; | |
1da177e4 | 4862 | |
c0eae66e BH |
4863 | p = xdr_inline_decode(xdr, bmlen << 2); |
4864 | if (unlikely(!p)) | |
4865 | goto out_overflow; | |
aa53ed54 JL |
4866 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
4867 | for (i = 0; i < savewords; ++i) | |
6f723f77 | 4868 | res->attrset[i] = be32_to_cpup(p++); |
aa53ed54 JL |
4869 | for (; i < NFS4_BITMAP_SIZE; i++) |
4870 | res->attrset[i] = 0; | |
4871 | ||
1da177e4 LT |
4872 | return decode_delegation(xdr, res); |
4873 | xdr_error: | |
3110ff80 | 4874 | dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); |
1da177e4 | 4875 | return -EIO; |
c0eae66e BH |
4876 | out_overflow: |
4877 | print_overflow_msg(__func__, xdr); | |
4878 | return -EIO; | |
1da177e4 LT |
4879 | } |
4880 | ||
4881 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) | |
4882 | { | |
1da177e4 LT |
4883 | int status; |
4884 | ||
05d564fe | 4885 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); |
c1d51931 TM |
4886 | if (status != -EIO) |
4887 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
4888 | if (!status) |
4889 | status = decode_stateid(xdr, &res->stateid); | |
4890 | return status; | |
1da177e4 LT |
4891 | } |
4892 | ||
4893 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) | |
4894 | { | |
1da177e4 LT |
4895 | int status; |
4896 | ||
4897 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); | |
c1d51931 TM |
4898 | if (status != -EIO) |
4899 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
4900 | if (!status) |
4901 | status = decode_stateid(xdr, &res->stateid); | |
4902 | return status; | |
1da177e4 LT |
4903 | } |
4904 | ||
4905 | static int decode_putfh(struct xdr_stream *xdr) | |
4906 | { | |
4907 | return decode_op_hdr(xdr, OP_PUTFH); | |
4908 | } | |
4909 | ||
4910 | static int decode_putrootfh(struct xdr_stream *xdr) | |
4911 | { | |
4912 | return decode_op_hdr(xdr, OP_PUTROOTFH); | |
4913 | } | |
4914 | ||
4915 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) | |
4916 | { | |
4917 | struct kvec *iov = req->rq_rcv_buf.head; | |
8687b63a | 4918 | __be32 *p; |
1da177e4 LT |
4919 | uint32_t count, eof, recvd, hdrlen; |
4920 | int status; | |
4921 | ||
4922 | status = decode_op_hdr(xdr, OP_READ); | |
4923 | if (status) | |
4924 | return status; | |
c0eae66e BH |
4925 | p = xdr_inline_decode(xdr, 8); |
4926 | if (unlikely(!p)) | |
4927 | goto out_overflow; | |
6f723f77 | 4928 | eof = be32_to_cpup(p++); |
cccddf4f | 4929 | count = be32_to_cpup(p); |
8111f373 | 4930 | hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base; |
1da177e4 LT |
4931 | recvd = req->rq_rcv_buf.len - hdrlen; |
4932 | if (count > recvd) { | |
fe82a183 | 4933 | dprintk("NFS: server cheating in read reply: " |
1da177e4 LT |
4934 | "count %u > recvd %u\n", count, recvd); |
4935 | count = recvd; | |
4936 | eof = 0; | |
4937 | } | |
4938 | xdr_read_pages(xdr, count); | |
4939 | res->eof = eof; | |
4940 | res->count = count; | |
4941 | return 0; | |
c0eae66e BH |
4942 | out_overflow: |
4943 | print_overflow_msg(__func__, xdr); | |
4944 | return -EIO; | |
1da177e4 LT |
4945 | } |
4946 | ||
4947 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) | |
4948 | { | |
4949 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
1da177e4 | 4950 | struct kvec *iov = rcvbuf->head; |
bcecff77 CL |
4951 | size_t hdrlen; |
4952 | u32 recvd, pglen = rcvbuf->page_len; | |
bcecff77 | 4953 | int status; |
1da177e4 LT |
4954 | |
4955 | status = decode_op_hdr(xdr, OP_READDIR); | |
db942bbd BH |
4956 | if (!status) |
4957 | status = decode_verifier(xdr, readdir->verifier.data); | |
4958 | if (unlikely(status)) | |
1da177e4 | 4959 | return status; |
44109241 FI |
4960 | dprintk("%s: verifier = %08x:%08x\n", |
4961 | __func__, | |
eadf4598 TM |
4962 | ((u32 *)readdir->verifier.data)[0], |
4963 | ((u32 *)readdir->verifier.data)[1]); | |
4964 | ||
1da177e4 | 4965 | |
db942bbd | 4966 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; |
1da177e4 LT |
4967 | recvd = rcvbuf->len - hdrlen; |
4968 | if (pglen > recvd) | |
4969 | pglen = recvd; | |
4970 | xdr_read_pages(xdr, pglen); | |
4971 | ||
afa8ccc9 | 4972 | |
ac396128 | 4973 | return pglen; |
1da177e4 LT |
4974 | } |
4975 | ||
4976 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) | |
4977 | { | |
4978 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
4979 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
4980 | size_t hdrlen; |
4981 | u32 len, recvd; | |
8687b63a | 4982 | __be32 *p; |
1da177e4 LT |
4983 | int status; |
4984 | ||
4985 | status = decode_op_hdr(xdr, OP_READLINK); | |
4986 | if (status) | |
4987 | return status; | |
4988 | ||
4989 | /* Convert length of symlink */ | |
c0eae66e BH |
4990 | p = xdr_inline_decode(xdr, 4); |
4991 | if (unlikely(!p)) | |
4992 | goto out_overflow; | |
cccddf4f | 4993 | len = be32_to_cpup(p); |
1da177e4 | 4994 | if (len >= rcvbuf->page_len || len <= 0) { |
fe82a183 | 4995 | dprintk("nfs: server returned giant symlink!\n"); |
1da177e4 LT |
4996 | return -ENAMETOOLONG; |
4997 | } | |
4998 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; | |
4999 | recvd = req->rq_rcv_buf.len - hdrlen; | |
5000 | if (recvd < len) { | |
fe82a183 | 5001 | dprintk("NFS: server cheating in readlink reply: " |
1da177e4 LT |
5002 | "count %u > recvd %u\n", len, recvd); |
5003 | return -EIO; | |
5004 | } | |
5005 | xdr_read_pages(xdr, len); | |
5006 | /* | |
5007 | * The XDR encode routine has set things up so that | |
5008 | * the link text will be copied directly into the | |
5009 | * buffer. We just have to do overflow-checking, | |
5010 | * and and null-terminate the text (the VFS expects | |
5011 | * null-termination). | |
5012 | */ | |
b4687da7 | 5013 | xdr_terminate_string(rcvbuf, len); |
1da177e4 | 5014 | return 0; |
c0eae66e BH |
5015 | out_overflow: |
5016 | print_overflow_msg(__func__, xdr); | |
5017 | return -EIO; | |
1da177e4 LT |
5018 | } |
5019 | ||
5020 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
5021 | { | |
5022 | int status; | |
5023 | ||
5024 | status = decode_op_hdr(xdr, OP_REMOVE); | |
5025 | if (status) | |
5026 | goto out; | |
5027 | status = decode_change_info(xdr, cinfo); | |
5028 | out: | |
5029 | return status; | |
5030 | } | |
5031 | ||
5032 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, | |
5033 | struct nfs4_change_info *new_cinfo) | |
5034 | { | |
5035 | int status; | |
5036 | ||
5037 | status = decode_op_hdr(xdr, OP_RENAME); | |
5038 | if (status) | |
5039 | goto out; | |
5040 | if ((status = decode_change_info(xdr, old_cinfo))) | |
5041 | goto out; | |
5042 | status = decode_change_info(xdr, new_cinfo); | |
5043 | out: | |
5044 | return status; | |
5045 | } | |
5046 | ||
5047 | static int decode_renew(struct xdr_stream *xdr) | |
5048 | { | |
5049 | return decode_op_hdr(xdr, OP_RENEW); | |
5050 | } | |
5051 | ||
56ae19f3 TM |
5052 | static int |
5053 | decode_restorefh(struct xdr_stream *xdr) | |
5054 | { | |
5055 | return decode_op_hdr(xdr, OP_RESTOREFH); | |
5056 | } | |
5057 | ||
029d105e | 5058 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
bf118a34 | 5059 | struct nfs_getaclres *res) |
029d105e | 5060 | { |
bf118a34 | 5061 | __be32 *savep, *bm_p; |
029d105e | 5062 | uint32_t attrlen, |
dae100c2 | 5063 | bitmap[3] = {0}; |
029d105e BF |
5064 | struct kvec *iov = req->rq_rcv_buf.head; |
5065 | int status; | |
5066 | ||
bf118a34 | 5067 | res->acl_len = 0; |
029d105e BF |
5068 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
5069 | goto out; | |
bf118a34 | 5070 | bm_p = xdr->p; |
029d105e BF |
5071 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) |
5072 | goto out; | |
5073 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
5074 | goto out; | |
5075 | ||
5076 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) | |
5077 | return -EIO; | |
5078 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { | |
bcecff77 CL |
5079 | size_t hdrlen; |
5080 | u32 recvd; | |
029d105e | 5081 | |
bf118a34 AA |
5082 | /* The bitmap (xdr len + bitmaps) and the attr xdr len words |
5083 | * are stored with the acl data to handle the problem of | |
5084 | * variable length bitmaps.*/ | |
5085 | xdr->p = bm_p; | |
5086 | res->acl_data_offset = be32_to_cpup(bm_p) + 2; | |
5087 | res->acl_data_offset <<= 2; | |
5088 | ||
029d105e BF |
5089 | /* We ignore &savep and don't do consistency checks on |
5090 | * the attr length. Let userspace figure it out.... */ | |
5091 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; | |
bf118a34 | 5092 | attrlen += res->acl_data_offset; |
029d105e BF |
5093 | recvd = req->rq_rcv_buf.len - hdrlen; |
5094 | if (attrlen > recvd) { | |
bf118a34 AA |
5095 | if (res->acl_flags & NFS4_ACL_LEN_REQUEST) { |
5096 | /* getxattr interface called with a NULL buf */ | |
5097 | res->acl_len = attrlen; | |
5098 | goto out; | |
5099 | } | |
5100 | dprintk("NFS: acl reply: attrlen %u > recvd %u\n", | |
029d105e BF |
5101 | attrlen, recvd); |
5102 | return -EINVAL; | |
5103 | } | |
c04871e6 | 5104 | xdr_read_pages(xdr, attrlen); |
bf118a34 | 5105 | res->acl_len = attrlen; |
8c233cf9 BF |
5106 | } else |
5107 | status = -EOPNOTSUPP; | |
029d105e BF |
5108 | |
5109 | out: | |
5110 | return status; | |
5111 | } | |
5112 | ||
1da177e4 LT |
5113 | static int |
5114 | decode_savefh(struct xdr_stream *xdr) | |
5115 | { | |
5116 | return decode_op_hdr(xdr, OP_SAVEFH); | |
5117 | } | |
5118 | ||
9e9ecc03 | 5119 | static int decode_setattr(struct xdr_stream *xdr) |
1da177e4 | 5120 | { |
8687b63a | 5121 | __be32 *p; |
1da177e4 LT |
5122 | uint32_t bmlen; |
5123 | int status; | |
5124 | ||
1da177e4 LT |
5125 | status = decode_op_hdr(xdr, OP_SETATTR); |
5126 | if (status) | |
5127 | return status; | |
c0eae66e BH |
5128 | p = xdr_inline_decode(xdr, 4); |
5129 | if (unlikely(!p)) | |
5130 | goto out_overflow; | |
cccddf4f | 5131 | bmlen = be32_to_cpup(p); |
c0eae66e BH |
5132 | p = xdr_inline_decode(xdr, bmlen << 2); |
5133 | if (likely(p)) | |
5134 | return 0; | |
5135 | out_overflow: | |
5136 | print_overflow_msg(__func__, xdr); | |
5137 | return -EIO; | |
1da177e4 LT |
5138 | } |
5139 | ||
bb8b27e5 | 5140 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) |
1da177e4 | 5141 | { |
8687b63a | 5142 | __be32 *p; |
1da177e4 LT |
5143 | uint32_t opnum; |
5144 | int32_t nfserr; | |
5145 | ||
c0eae66e BH |
5146 | p = xdr_inline_decode(xdr, 8); |
5147 | if (unlikely(!p)) | |
5148 | goto out_overflow; | |
6f723f77 | 5149 | opnum = be32_to_cpup(p++); |
1da177e4 | 5150 | if (opnum != OP_SETCLIENTID) { |
fe82a183 | 5151 | dprintk("nfs: decode_setclientid: Server returned operation" |
6c0195a4 | 5152 | " %d\n", opnum); |
1da177e4 LT |
5153 | return -EIO; |
5154 | } | |
cccddf4f | 5155 | nfserr = be32_to_cpup(p); |
1da177e4 | 5156 | if (nfserr == NFS_OK) { |
c0eae66e BH |
5157 | p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); |
5158 | if (unlikely(!p)) | |
5159 | goto out_overflow; | |
bb8b27e5 TM |
5160 | p = xdr_decode_hyper(p, &res->clientid); |
5161 | memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); | |
1da177e4 LT |
5162 | } else if (nfserr == NFSERR_CLID_INUSE) { |
5163 | uint32_t len; | |
5164 | ||
5165 | /* skip netid string */ | |
c0eae66e BH |
5166 | p = xdr_inline_decode(xdr, 4); |
5167 | if (unlikely(!p)) | |
5168 | goto out_overflow; | |
cccddf4f | 5169 | len = be32_to_cpup(p); |
c0eae66e BH |
5170 | p = xdr_inline_decode(xdr, len); |
5171 | if (unlikely(!p)) | |
5172 | goto out_overflow; | |
1da177e4 LT |
5173 | |
5174 | /* skip uaddr string */ | |
c0eae66e BH |
5175 | p = xdr_inline_decode(xdr, 4); |
5176 | if (unlikely(!p)) | |
5177 | goto out_overflow; | |
cccddf4f | 5178 | len = be32_to_cpup(p); |
c0eae66e BH |
5179 | p = xdr_inline_decode(xdr, len); |
5180 | if (unlikely(!p)) | |
5181 | goto out_overflow; | |
1da177e4 LT |
5182 | return -NFSERR_CLID_INUSE; |
5183 | } else | |
856dff3d | 5184 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
5185 | |
5186 | return 0; | |
c0eae66e BH |
5187 | out_overflow: |
5188 | print_overflow_msg(__func__, xdr); | |
5189 | return -EIO; | |
1da177e4 LT |
5190 | } |
5191 | ||
5192 | static int decode_setclientid_confirm(struct xdr_stream *xdr) | |
5193 | { | |
5194 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); | |
5195 | } | |
5196 | ||
5197 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) | |
5198 | { | |
8687b63a | 5199 | __be32 *p; |
1da177e4 LT |
5200 | int status; |
5201 | ||
5202 | status = decode_op_hdr(xdr, OP_WRITE); | |
5203 | if (status) | |
5204 | return status; | |
5205 | ||
c0eae66e BH |
5206 | p = xdr_inline_decode(xdr, 16); |
5207 | if (unlikely(!p)) | |
5208 | goto out_overflow; | |
6f723f77 BH |
5209 | res->count = be32_to_cpup(p++); |
5210 | res->verf->committed = be32_to_cpup(p++); | |
99398d06 | 5211 | memcpy(res->verf->verifier, p, 8); |
1da177e4 | 5212 | return 0; |
c0eae66e BH |
5213 | out_overflow: |
5214 | print_overflow_msg(__func__, xdr); | |
5215 | return -EIO; | |
1da177e4 LT |
5216 | } |
5217 | ||
5218 | static int decode_delegreturn(struct xdr_stream *xdr) | |
5219 | { | |
5220 | return decode_op_hdr(xdr, OP_DELEGRETURN); | |
5221 | } | |
5222 | ||
5a5ea0d4 BS |
5223 | static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor) |
5224 | { | |
5225 | __be32 *p; | |
5226 | ||
5227 | p = xdr_inline_decode(xdr, 4); | |
5228 | if (unlikely(!p)) | |
5229 | goto out_overflow; | |
5230 | flavor->gss.sec_oid4.len = be32_to_cpup(p); | |
5231 | if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN) | |
5232 | goto out_err; | |
5233 | ||
5234 | p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len); | |
5235 | if (unlikely(!p)) | |
5236 | goto out_overflow; | |
5237 | memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len); | |
5238 | ||
5239 | p = xdr_inline_decode(xdr, 8); | |
5240 | if (unlikely(!p)) | |
5241 | goto out_overflow; | |
5242 | flavor->gss.qop4 = be32_to_cpup(p++); | |
5243 | flavor->gss.service = be32_to_cpup(p); | |
5244 | ||
5245 | return 0; | |
5246 | ||
5247 | out_overflow: | |
5248 | print_overflow_msg(__func__, xdr); | |
5249 | return -EIO; | |
5250 | out_err: | |
5251 | return -EINVAL; | |
5252 | } | |
5253 | ||
5254 | static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) | |
5255 | { | |
5256 | struct nfs4_secinfo_flavor *sec_flavor; | |
5257 | int status; | |
5258 | __be32 *p; | |
c3dfc280 | 5259 | int i, num_flavors; |
5a5ea0d4 BS |
5260 | |
5261 | status = decode_op_hdr(xdr, OP_SECINFO); | |
613e901e BS |
5262 | if (status) |
5263 | goto out; | |
5a5ea0d4 BS |
5264 | p = xdr_inline_decode(xdr, 4); |
5265 | if (unlikely(!p)) | |
5266 | goto out_overflow; | |
5a5ea0d4 | 5267 | |
c3dfc280 BS |
5268 | res->flavors->num_flavors = 0; |
5269 | num_flavors = be32_to_cpup(p); | |
5270 | ||
5271 | for (i = 0; i < num_flavors; i++) { | |
5a5ea0d4 | 5272 | sec_flavor = &res->flavors->flavors[i]; |
c3dfc280 | 5273 | if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) |
5a5ea0d4 BS |
5274 | break; |
5275 | ||
5276 | p = xdr_inline_decode(xdr, 4); | |
5277 | if (unlikely(!p)) | |
5278 | goto out_overflow; | |
5279 | sec_flavor->flavor = be32_to_cpup(p); | |
5280 | ||
5281 | if (sec_flavor->flavor == RPC_AUTH_GSS) { | |
613e901e BS |
5282 | status = decode_secinfo_gss(xdr, sec_flavor); |
5283 | if (status) | |
5284 | goto out; | |
5a5ea0d4 | 5285 | } |
c3dfc280 | 5286 | res->flavors->num_flavors++; |
5a5ea0d4 BS |
5287 | } |
5288 | ||
613e901e BS |
5289 | out: |
5290 | return status; | |
5a5ea0d4 BS |
5291 | out_overflow: |
5292 | print_overflow_msg(__func__, xdr); | |
5293 | return -EIO; | |
5294 | } | |
5295 | ||
99fe60d0 BH |
5296 | #if defined(CONFIG_NFS_V4_1) |
5297 | static int decode_exchange_id(struct xdr_stream *xdr, | |
5298 | struct nfs41_exchange_id_res *res) | |
5299 | { | |
5300 | __be32 *p; | |
5301 | uint32_t dummy; | |
2460ba57 | 5302 | char *dummy_str; |
99fe60d0 BH |
5303 | int status; |
5304 | struct nfs_client *clp = res->client; | |
7d2ed9ac | 5305 | uint32_t impl_id_count; |
99fe60d0 BH |
5306 | |
5307 | status = decode_op_hdr(xdr, OP_EXCHANGE_ID); | |
5308 | if (status) | |
5309 | return status; | |
5310 | ||
c0eae66e BH |
5311 | p = xdr_inline_decode(xdr, 8); |
5312 | if (unlikely(!p)) | |
5313 | goto out_overflow; | |
114f64b5 | 5314 | xdr_decode_hyper(p, &clp->cl_clientid); |
c0eae66e BH |
5315 | p = xdr_inline_decode(xdr, 12); |
5316 | if (unlikely(!p)) | |
5317 | goto out_overflow; | |
6f723f77 BH |
5318 | clp->cl_seqid = be32_to_cpup(p++); |
5319 | clp->cl_exchange_flags = be32_to_cpup(p++); | |
99fe60d0 BH |
5320 | |
5321 | /* We ask for SP4_NONE */ | |
cccddf4f | 5322 | dummy = be32_to_cpup(p); |
99fe60d0 BH |
5323 | if (dummy != SP4_NONE) |
5324 | return -EIO; | |
5325 | ||
5326 | /* Throw away minor_id */ | |
c0eae66e BH |
5327 | p = xdr_inline_decode(xdr, 8); |
5328 | if (unlikely(!p)) | |
5329 | goto out_overflow; | |
99fe60d0 BH |
5330 | |
5331 | /* Throw away Major id */ | |
2460ba57 BH |
5332 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); |
5333 | if (unlikely(status)) | |
5334 | return status; | |
99fe60d0 | 5335 | |
78fe0f41 | 5336 | /* Save server_scope */ |
2460ba57 BH |
5337 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); |
5338 | if (unlikely(status)) | |
5339 | return status; | |
99fe60d0 | 5340 | |
78fe0f41 WAA |
5341 | if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) |
5342 | return -EIO; | |
5343 | ||
5344 | memcpy(res->server_scope->server_scope, dummy_str, dummy); | |
5345 | res->server_scope->server_scope_sz = dummy; | |
5346 | ||
7d2ed9ac WAA |
5347 | /* Implementation Id */ |
5348 | p = xdr_inline_decode(xdr, 4); | |
5349 | if (unlikely(!p)) | |
5350 | goto out_overflow; | |
5351 | impl_id_count = be32_to_cpup(p++); | |
99fe60d0 | 5352 | |
7d2ed9ac WAA |
5353 | if (impl_id_count) { |
5354 | /* nii_domain */ | |
5355 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); | |
5356 | if (unlikely(status)) | |
5357 | return status; | |
5358 | if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) | |
5359 | return -EIO; | |
5360 | memcpy(res->impl_id->domain, dummy_str, dummy); | |
5361 | ||
5362 | /* nii_name */ | |
5363 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); | |
5364 | if (unlikely(status)) | |
5365 | return status; | |
5366 | if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) | |
5367 | return -EIO; | |
5368 | memcpy(res->impl_id->name, dummy_str, dummy); | |
5369 | ||
5370 | /* nii_date */ | |
5371 | p = xdr_inline_decode(xdr, 12); | |
5372 | if (unlikely(!p)) | |
5373 | goto out_overflow; | |
5374 | p = xdr_decode_hyper(p, &res->impl_id->date.seconds); | |
5375 | res->impl_id->date.nseconds = be32_to_cpup(p); | |
5376 | ||
5377 | /* if there's more than one entry, ignore the rest */ | |
5378 | } | |
99fe60d0 | 5379 | return 0; |
c0eae66e BH |
5380 | out_overflow: |
5381 | print_overflow_msg(__func__, xdr); | |
5382 | return -EIO; | |
99fe60d0 | 5383 | } |
fc931582 AA |
5384 | |
5385 | static int decode_chan_attrs(struct xdr_stream *xdr, | |
5386 | struct nfs4_channel_attrs *attrs) | |
5387 | { | |
5388 | __be32 *p; | |
c9c30dd5 | 5389 | u32 nr_attrs, val; |
fc931582 | 5390 | |
c0eae66e BH |
5391 | p = xdr_inline_decode(xdr, 28); |
5392 | if (unlikely(!p)) | |
5393 | goto out_overflow; | |
c9c30dd5 BH |
5394 | val = be32_to_cpup(p++); /* headerpadsz */ |
5395 | if (val) | |
5396 | return -EINVAL; /* no support for header padding yet */ | |
6f723f77 BH |
5397 | attrs->max_rqst_sz = be32_to_cpup(p++); |
5398 | attrs->max_resp_sz = be32_to_cpup(p++); | |
5399 | attrs->max_resp_sz_cached = be32_to_cpup(p++); | |
5400 | attrs->max_ops = be32_to_cpup(p++); | |
5401 | attrs->max_reqs = be32_to_cpup(p++); | |
cccddf4f | 5402 | nr_attrs = be32_to_cpup(p); |
fc931582 | 5403 | if (unlikely(nr_attrs > 1)) { |
a030889a WAA |
5404 | printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " |
5405 | "count %u\n", __func__, nr_attrs); | |
fc931582 AA |
5406 | return -EINVAL; |
5407 | } | |
c0eae66e BH |
5408 | if (nr_attrs == 1) { |
5409 | p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ | |
5410 | if (unlikely(!p)) | |
5411 | goto out_overflow; | |
5412 | } | |
fc931582 | 5413 | return 0; |
c0eae66e BH |
5414 | out_overflow: |
5415 | print_overflow_msg(__func__, xdr); | |
5416 | return -EIO; | |
fc931582 AA |
5417 | } |
5418 | ||
e78291e4 BH |
5419 | static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) |
5420 | { | |
5421 | return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); | |
fc931582 AA |
5422 | } |
5423 | ||
5424 | static int decode_create_session(struct xdr_stream *xdr, | |
5425 | struct nfs41_create_session_res *res) | |
5426 | { | |
5427 | __be32 *p; | |
5428 | int status; | |
5429 | struct nfs_client *clp = res->client; | |
5430 | struct nfs4_session *session = clp->cl_session; | |
5431 | ||
5432 | status = decode_op_hdr(xdr, OP_CREATE_SESSION); | |
e78291e4 BH |
5433 | if (!status) |
5434 | status = decode_sessionid(xdr, &session->sess_id); | |
5435 | if (unlikely(status)) | |
fc931582 AA |
5436 | return status; |
5437 | ||
fc931582 | 5438 | /* seqid, flags */ |
c0eae66e BH |
5439 | p = xdr_inline_decode(xdr, 8); |
5440 | if (unlikely(!p)) | |
5441 | goto out_overflow; | |
6f723f77 | 5442 | clp->cl_seqid = be32_to_cpup(p++); |
cccddf4f | 5443 | session->flags = be32_to_cpup(p); |
fc931582 AA |
5444 | |
5445 | /* Channel attributes */ | |
5446 | status = decode_chan_attrs(xdr, &session->fc_attrs); | |
5447 | if (!status) | |
5448 | status = decode_chan_attrs(xdr, &session->bc_attrs); | |
5449 | return status; | |
c0eae66e BH |
5450 | out_overflow: |
5451 | print_overflow_msg(__func__, xdr); | |
5452 | return -EIO; | |
fc931582 | 5453 | } |
0f3e66c6 AA |
5454 | |
5455 | static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) | |
5456 | { | |
5457 | return decode_op_hdr(xdr, OP_DESTROY_SESSION); | |
5458 | } | |
18019753 RL |
5459 | |
5460 | static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) | |
5461 | { | |
5462 | return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); | |
5463 | } | |
99fe60d0 BH |
5464 | #endif /* CONFIG_NFS_V4_1 */ |
5465 | ||
9b7b9fcc AA |
5466 | static int decode_sequence(struct xdr_stream *xdr, |
5467 | struct nfs4_sequence_res *res, | |
5468 | struct rpc_rqst *rqstp) | |
5469 | { | |
5470 | #if defined(CONFIG_NFS_V4_1) | |
fc01cea9 AA |
5471 | struct nfs4_sessionid id; |
5472 | u32 dummy; | |
5473 | int status; | |
5474 | __be32 *p; | |
5475 | ||
9b7b9fcc AA |
5476 | if (!res->sr_session) |
5477 | return 0; | |
5478 | ||
fc01cea9 | 5479 | status = decode_op_hdr(xdr, OP_SEQUENCE); |
e78291e4 BH |
5480 | if (!status) |
5481 | status = decode_sessionid(xdr, &id); | |
5482 | if (unlikely(status)) | |
fc01cea9 | 5483 | goto out_err; |
9b7b9fcc | 5484 | |
fc01cea9 AA |
5485 | /* |
5486 | * If the server returns different values for sessionID, slotID or | |
5487 | * sequence number, the server is looney tunes. | |
5488 | */ | |
fdcb4577 | 5489 | status = -EREMOTEIO; |
fc01cea9 | 5490 | |
fc01cea9 AA |
5491 | if (memcmp(id.data, res->sr_session->sess_id.data, |
5492 | NFS4_MAX_SESSIONID_LEN)) { | |
5493 | dprintk("%s Invalid session id\n", __func__); | |
5494 | goto out_err; | |
5495 | } | |
e78291e4 | 5496 | |
c0eae66e BH |
5497 | p = xdr_inline_decode(xdr, 20); |
5498 | if (unlikely(!p)) | |
5499 | goto out_overflow; | |
e78291e4 | 5500 | |
fc01cea9 | 5501 | /* seqid */ |
6f723f77 | 5502 | dummy = be32_to_cpup(p++); |
dfb4f309 | 5503 | if (dummy != res->sr_slot->seq_nr) { |
fc01cea9 AA |
5504 | dprintk("%s Invalid sequence number\n", __func__); |
5505 | goto out_err; | |
5506 | } | |
5507 | /* slot id */ | |
6f723f77 | 5508 | dummy = be32_to_cpup(p++); |
dfb4f309 | 5509 | if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) { |
fc01cea9 AA |
5510 | dprintk("%s Invalid slot id\n", __func__); |
5511 | goto out_err; | |
5512 | } | |
5513 | /* highest slot id - currently not processed */ | |
6f723f77 | 5514 | dummy = be32_to_cpup(p++); |
fc01cea9 | 5515 | /* target highest slot id - currently not processed */ |
6f723f77 | 5516 | dummy = be32_to_cpup(p++); |
0629e370 AB |
5517 | /* result flags */ |
5518 | res->sr_status_flags = be32_to_cpup(p); | |
fc01cea9 AA |
5519 | status = 0; |
5520 | out_err: | |
5521 | res->sr_status = status; | |
5522 | return status; | |
c0eae66e BH |
5523 | out_overflow: |
5524 | print_overflow_msg(__func__, xdr); | |
5525 | status = -EIO; | |
5526 | goto out_err; | |
fc01cea9 | 5527 | #else /* CONFIG_NFS_V4_1 */ |
9b7b9fcc | 5528 | return 0; |
fc01cea9 | 5529 | #endif /* CONFIG_NFS_V4_1 */ |
9b7b9fcc AA |
5530 | } |
5531 | ||
b1f69b75 | 5532 | #if defined(CONFIG_NFS_V4_1) |
7f11d8d3 AA |
5533 | /* |
5534 | * TODO: Need to handle case when EOF != true; | |
5535 | */ | |
5536 | static int decode_getdevicelist(struct xdr_stream *xdr, | |
5537 | struct pnfs_devicelist *res) | |
5538 | { | |
5539 | __be32 *p; | |
5540 | int status, i; | |
5541 | struct nfs_writeverf verftemp; | |
5542 | ||
5543 | status = decode_op_hdr(xdr, OP_GETDEVICELIST); | |
5544 | if (status) | |
5545 | return status; | |
5546 | ||
5547 | p = xdr_inline_decode(xdr, 8 + 8 + 4); | |
5548 | if (unlikely(!p)) | |
5549 | goto out_overflow; | |
5550 | ||
5551 | /* TODO: Skip cookie for now */ | |
5552 | p += 2; | |
5553 | ||
5554 | /* Read verifier */ | |
5555 | p = xdr_decode_opaque_fixed(p, verftemp.verifier, 8); | |
5556 | ||
5557 | res->num_devs = be32_to_cpup(p); | |
5558 | ||
5559 | dprintk("%s: num_dev %d\n", __func__, res->num_devs); | |
5560 | ||
5561 | if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) { | |
a030889a | 5562 | printk(KERN_ERR "NFS: %s too many result dev_num %u\n", |
7f11d8d3 AA |
5563 | __func__, res->num_devs); |
5564 | return -EIO; | |
5565 | } | |
5566 | ||
5567 | p = xdr_inline_decode(xdr, | |
5568 | res->num_devs * NFS4_DEVICEID4_SIZE + 4); | |
5569 | if (unlikely(!p)) | |
5570 | goto out_overflow; | |
5571 | for (i = 0; i < res->num_devs; i++) | |
5572 | p = xdr_decode_opaque_fixed(p, res->dev_id[i].data, | |
5573 | NFS4_DEVICEID4_SIZE); | |
5574 | res->eof = be32_to_cpup(p); | |
5575 | return 0; | |
5576 | out_overflow: | |
5577 | print_overflow_msg(__func__, xdr); | |
5578 | return -EIO; | |
5579 | } | |
b1f69b75 AA |
5580 | |
5581 | static int decode_getdeviceinfo(struct xdr_stream *xdr, | |
5582 | struct pnfs_device *pdev) | |
5583 | { | |
5584 | __be32 *p; | |
5585 | uint32_t len, type; | |
5586 | int status; | |
5587 | ||
5588 | status = decode_op_hdr(xdr, OP_GETDEVICEINFO); | |
5589 | if (status) { | |
5590 | if (status == -ETOOSMALL) { | |
5591 | p = xdr_inline_decode(xdr, 4); | |
5592 | if (unlikely(!p)) | |
5593 | goto out_overflow; | |
5594 | pdev->mincount = be32_to_cpup(p); | |
5595 | dprintk("%s: Min count too small. mincnt = %u\n", | |
5596 | __func__, pdev->mincount); | |
5597 | } | |
5598 | return status; | |
5599 | } | |
5600 | ||
5601 | p = xdr_inline_decode(xdr, 8); | |
5602 | if (unlikely(!p)) | |
5603 | goto out_overflow; | |
5604 | type = be32_to_cpup(p++); | |
5605 | if (type != pdev->layout_type) { | |
5606 | dprintk("%s: layout mismatch req: %u pdev: %u\n", | |
5607 | __func__, pdev->layout_type, type); | |
5608 | return -EINVAL; | |
5609 | } | |
5610 | /* | |
5611 | * Get the length of the opaque device_addr4. xdr_read_pages places | |
5612 | * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) | |
5613 | * and places the remaining xdr data in xdr_buf->tail | |
5614 | */ | |
5615 | pdev->mincount = be32_to_cpup(p); | |
5616 | xdr_read_pages(xdr, pdev->mincount); /* include space for the length */ | |
5617 | ||
5618 | /* Parse notification bitmap, verifying that it is zero. */ | |
5619 | p = xdr_inline_decode(xdr, 4); | |
5620 | if (unlikely(!p)) | |
5621 | goto out_overflow; | |
5622 | len = be32_to_cpup(p); | |
5623 | if (len) { | |
ead00597 | 5624 | uint32_t i; |
b1f69b75 AA |
5625 | |
5626 | p = xdr_inline_decode(xdr, 4 * len); | |
5627 | if (unlikely(!p)) | |
5628 | goto out_overflow; | |
5629 | for (i = 0; i < len; i++, p++) { | |
5630 | if (be32_to_cpup(p)) { | |
5631 | dprintk("%s: notifications not supported\n", | |
5632 | __func__); | |
5633 | return -EIO; | |
5634 | } | |
5635 | } | |
5636 | } | |
5637 | return 0; | |
5638 | out_overflow: | |
5639 | print_overflow_msg(__func__, xdr); | |
5640 | return -EIO; | |
5641 | } | |
5642 | ||
5643 | static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, | |
5644 | struct nfs4_layoutget_res *res) | |
5645 | { | |
5646 | __be32 *p; | |
5647 | int status; | |
5648 | u32 layout_count; | |
35124a09 WAA |
5649 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; |
5650 | struct kvec *iov = rcvbuf->head; | |
5651 | u32 hdrlen, recvd; | |
b1f69b75 AA |
5652 | |
5653 | status = decode_op_hdr(xdr, OP_LAYOUTGET); | |
5654 | if (status) | |
5655 | return status; | |
ea9d23f5 TM |
5656 | p = xdr_inline_decode(xdr, 4); |
5657 | if (unlikely(!p)) | |
5658 | goto out_overflow; | |
5659 | res->return_on_close = be32_to_cpup(p); | |
5660 | decode_stateid(xdr, &res->stateid); | |
5661 | p = xdr_inline_decode(xdr, 4); | |
b1f69b75 AA |
5662 | if (unlikely(!p)) |
5663 | goto out_overflow; | |
b1f69b75 AA |
5664 | layout_count = be32_to_cpup(p); |
5665 | if (!layout_count) { | |
5666 | dprintk("%s: server responded with empty layout array\n", | |
5667 | __func__); | |
5668 | return -EINVAL; | |
5669 | } | |
5670 | ||
35124a09 | 5671 | p = xdr_inline_decode(xdr, 28); |
b1f69b75 AA |
5672 | if (unlikely(!p)) |
5673 | goto out_overflow; | |
5674 | p = xdr_decode_hyper(p, &res->range.offset); | |
5675 | p = xdr_decode_hyper(p, &res->range.length); | |
5676 | res->range.iomode = be32_to_cpup(p++); | |
5677 | res->type = be32_to_cpup(p++); | |
35124a09 | 5678 | res->layoutp->len = be32_to_cpup(p); |
b1f69b75 AA |
5679 | |
5680 | dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", | |
5681 | __func__, | |
5682 | (unsigned long)res->range.offset, | |
5683 | (unsigned long)res->range.length, | |
5684 | res->range.iomode, | |
5685 | res->type, | |
35124a09 WAA |
5686 | res->layoutp->len); |
5687 | ||
5688 | hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base; | |
5689 | recvd = req->rq_rcv_buf.len - hdrlen; | |
5690 | if (res->layoutp->len > recvd) { | |
5691 | dprintk("NFS: server cheating in layoutget reply: " | |
5692 | "layout len %u > recvd %u\n", | |
5693 | res->layoutp->len, recvd); | |
5694 | return -EINVAL; | |
5695 | } | |
b1f69b75 | 5696 | |
35124a09 | 5697 | xdr_read_pages(xdr, res->layoutp->len); |
b1f69b75 AA |
5698 | |
5699 | if (layout_count > 1) { | |
5700 | /* We only handle a length one array at the moment. Any | |
5701 | * further entries are just ignored. Note that this means | |
5702 | * the client may see a response that is less than the | |
5703 | * minimum it requested. | |
5704 | */ | |
5705 | dprintk("%s: server responded with %d layouts, dropping tail\n", | |
5706 | __func__, layout_count); | |
5707 | } | |
5708 | ||
5709 | return 0; | |
5710 | out_overflow: | |
5711 | print_overflow_msg(__func__, xdr); | |
5712 | return -EIO; | |
5713 | } | |
863a3c6c | 5714 | |
cbe82603 BH |
5715 | static int decode_layoutreturn(struct xdr_stream *xdr, |
5716 | struct nfs4_layoutreturn_res *res) | |
5717 | { | |
5718 | __be32 *p; | |
5719 | int status; | |
5720 | ||
5721 | status = decode_op_hdr(xdr, OP_LAYOUTRETURN); | |
5722 | if (status) | |
5723 | return status; | |
5724 | p = xdr_inline_decode(xdr, 4); | |
5725 | if (unlikely(!p)) | |
5726 | goto out_overflow; | |
5727 | res->lrs_present = be32_to_cpup(p); | |
5728 | if (res->lrs_present) | |
5729 | status = decode_stateid(xdr, &res->stateid); | |
5730 | return status; | |
5731 | out_overflow: | |
5732 | print_overflow_msg(__func__, xdr); | |
5733 | return -EIO; | |
5734 | } | |
5735 | ||
863a3c6c AA |
5736 | static int decode_layoutcommit(struct xdr_stream *xdr, |
5737 | struct rpc_rqst *req, | |
5738 | struct nfs4_layoutcommit_res *res) | |
5739 | { | |
5740 | __be32 *p; | |
5741 | __u32 sizechanged; | |
5742 | int status; | |
5743 | ||
5744 | status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); | |
db29c089 | 5745 | res->status = status; |
863a3c6c AA |
5746 | if (status) |
5747 | return status; | |
5748 | ||
5749 | p = xdr_inline_decode(xdr, 4); | |
5750 | if (unlikely(!p)) | |
5751 | goto out_overflow; | |
5752 | sizechanged = be32_to_cpup(p); | |
5753 | ||
5754 | if (sizechanged) { | |
5755 | /* throw away new size */ | |
5756 | p = xdr_inline_decode(xdr, 8); | |
5757 | if (unlikely(!p)) | |
5758 | goto out_overflow; | |
5759 | } | |
5760 | return 0; | |
5761 | out_overflow: | |
5762 | print_overflow_msg(__func__, xdr); | |
5763 | return -EIO; | |
5764 | } | |
7d974794 BS |
5765 | |
5766 | static int decode_test_stateid(struct xdr_stream *xdr, | |
5767 | struct nfs41_test_stateid_res *res) | |
5768 | { | |
5769 | __be32 *p; | |
5770 | int status; | |
5771 | int num_res; | |
5772 | ||
5773 | status = decode_op_hdr(xdr, OP_TEST_STATEID); | |
5774 | if (status) | |
5775 | return status; | |
5776 | ||
5777 | p = xdr_inline_decode(xdr, 4); | |
5778 | if (unlikely(!p)) | |
5779 | goto out_overflow; | |
5780 | num_res = be32_to_cpup(p++); | |
5781 | if (num_res != 1) | |
5782 | goto out; | |
5783 | ||
5784 | p = xdr_inline_decode(xdr, 4); | |
5785 | if (unlikely(!p)) | |
5786 | goto out_overflow; | |
5787 | res->status = be32_to_cpup(p++); | |
1cab0652 BS |
5788 | |
5789 | return status; | |
7d974794 BS |
5790 | out_overflow: |
5791 | print_overflow_msg(__func__, xdr); | |
5792 | out: | |
5793 | return -EIO; | |
5794 | } | |
9aeda35f BS |
5795 | |
5796 | static int decode_free_stateid(struct xdr_stream *xdr, | |
5797 | struct nfs41_free_stateid_res *res) | |
5798 | { | |
5799 | __be32 *p; | |
5800 | int status; | |
5801 | ||
5802 | status = decode_op_hdr(xdr, OP_FREE_STATEID); | |
5803 | if (status) | |
5804 | return status; | |
5805 | ||
5806 | p = xdr_inline_decode(xdr, 4); | |
5807 | if (unlikely(!p)) | |
5808 | goto out_overflow; | |
5809 | res->status = be32_to_cpup(p++); | |
5810 | return res->status; | |
5811 | out_overflow: | |
5812 | print_overflow_msg(__func__, xdr); | |
5813 | return -EIO; | |
5814 | } | |
b1f69b75 AA |
5815 | #endif /* CONFIG_NFS_V4_1 */ |
5816 | ||
49c2559e BH |
5817 | /* |
5818 | * END OF "GENERIC" DECODE ROUTINES. | |
5819 | */ | |
5820 | ||
1da177e4 LT |
5821 | /* |
5822 | * Decode OPEN_DOWNGRADE response | |
5823 | */ | |
bf269551 CL |
5824 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, |
5825 | struct xdr_stream *xdr, | |
5826 | struct nfs_closeres *res) | |
1da177e4 | 5827 | { |
05d564fe AA |
5828 | struct compound_hdr hdr; |
5829 | int status; | |
5830 | ||
bf269551 | 5831 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5832 | if (status) |
5833 | goto out; | |
bf269551 | 5834 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
05d564fe AA |
5835 | if (status) |
5836 | goto out; | |
bf269551 | 5837 | status = decode_putfh(xdr); |
05d564fe AA |
5838 | if (status) |
5839 | goto out; | |
bf269551 | 5840 | status = decode_open_downgrade(xdr, res); |
516a6af6 TM |
5841 | if (status != 0) |
5842 | goto out; | |
6926afd1 | 5843 | decode_getfattr(xdr, res->fattr, res->server); |
1da177e4 | 5844 | out: |
05d564fe | 5845 | return status; |
1da177e4 LT |
5846 | } |
5847 | ||
1da177e4 LT |
5848 | /* |
5849 | * Decode ACCESS response | |
5850 | */ | |
bf269551 CL |
5851 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5852 | struct nfs4_accessres *res) | |
1da177e4 | 5853 | { |
1da177e4 LT |
5854 | struct compound_hdr hdr; |
5855 | int status; | |
6c0195a4 | 5856 | |
bf269551 | 5857 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5858 | if (status) |
5859 | goto out; | |
bf269551 | 5860 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
9b7b9fcc | 5861 | if (status) |
1da177e4 | 5862 | goto out; |
bf269551 | 5863 | status = decode_putfh(xdr); |
76b32999 TM |
5864 | if (status != 0) |
5865 | goto out; | |
bf269551 | 5866 | status = decode_access(xdr, res); |
76b32999 TM |
5867 | if (status != 0) |
5868 | goto out; | |
6926afd1 | 5869 | decode_getfattr(xdr, res->fattr, res->server); |
1da177e4 LT |
5870 | out: |
5871 | return status; | |
5872 | } | |
5873 | ||
5874 | /* | |
5875 | * Decode LOOKUP response | |
5876 | */ | |
bf269551 CL |
5877 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5878 | struct nfs4_lookup_res *res) | |
1da177e4 | 5879 | { |
1da177e4 LT |
5880 | struct compound_hdr hdr; |
5881 | int status; | |
6c0195a4 | 5882 | |
bf269551 | 5883 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5884 | if (status) |
5885 | goto out; | |
bf269551 | 5886 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
9b7b9fcc | 5887 | if (status) |
1da177e4 | 5888 | goto out; |
bf269551 CL |
5889 | status = decode_putfh(xdr); |
5890 | if (status) | |
1da177e4 | 5891 | goto out; |
bf269551 CL |
5892 | status = decode_lookup(xdr); |
5893 | if (status) | |
1da177e4 | 5894 | goto out; |
bf269551 CL |
5895 | status = decode_getfh(xdr, res->fh); |
5896 | if (status) | |
1da177e4 | 5897 | goto out; |
6926afd1 | 5898 | status = decode_getfattr(xdr, res->fattr, res->server); |
1da177e4 LT |
5899 | out: |
5900 | return status; | |
5901 | } | |
5902 | ||
5903 | /* | |
5904 | * Decode LOOKUP_ROOT response | |
5905 | */ | |
bf269551 CL |
5906 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, |
5907 | struct xdr_stream *xdr, | |
5908 | struct nfs4_lookup_res *res) | |
1da177e4 | 5909 | { |
1da177e4 LT |
5910 | struct compound_hdr hdr; |
5911 | int status; | |
6c0195a4 | 5912 | |
bf269551 | 5913 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5914 | if (status) |
5915 | goto out; | |
bf269551 | 5916 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
9b7b9fcc | 5917 | if (status) |
1da177e4 | 5918 | goto out; |
bf269551 CL |
5919 | status = decode_putrootfh(xdr); |
5920 | if (status) | |
1da177e4 | 5921 | goto out; |
bf269551 CL |
5922 | status = decode_getfh(xdr, res->fh); |
5923 | if (status == 0) | |
6926afd1 | 5924 | status = decode_getfattr(xdr, res->fattr, res->server); |
1da177e4 LT |
5925 | out: |
5926 | return status; | |
5927 | } | |
5928 | ||
5929 | /* | |
5930 | * Decode REMOVE response | |
5931 | */ | |
bf269551 CL |
5932 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5933 | struct nfs_removeres *res) | |
1da177e4 | 5934 | { |
1da177e4 LT |
5935 | struct compound_hdr hdr; |
5936 | int status; | |
6c0195a4 | 5937 | |
bf269551 | 5938 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5939 | if (status) |
5940 | goto out; | |
bf269551 | 5941 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
9b7b9fcc | 5942 | if (status) |
1da177e4 | 5943 | goto out; |
bf269551 CL |
5944 | status = decode_putfh(xdr); |
5945 | if (status) | |
16e42959 | 5946 | goto out; |
bf269551 CL |
5947 | status = decode_remove(xdr, &res->cinfo); |
5948 | if (status) | |
16e42959 | 5949 | goto out; |
6926afd1 | 5950 | decode_getfattr(xdr, res->dir_attr, res->server); |
1da177e4 LT |
5951 | out: |
5952 | return status; | |
5953 | } | |
5954 | ||
5955 | /* | |
5956 | * Decode RENAME response | |
5957 | */ | |
bf269551 CL |
5958 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5959 | struct nfs_renameres *res) | |
1da177e4 | 5960 | { |
1da177e4 LT |
5961 | struct compound_hdr hdr; |
5962 | int status; | |
6c0195a4 | 5963 | |
bf269551 | 5964 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5965 | if (status) |
5966 | goto out; | |
bf269551 | 5967 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
9b7b9fcc | 5968 | if (status) |
1da177e4 | 5969 | goto out; |
bf269551 CL |
5970 | status = decode_putfh(xdr); |
5971 | if (status) | |
1da177e4 | 5972 | goto out; |
bf269551 CL |
5973 | status = decode_savefh(xdr); |
5974 | if (status) | |
1da177e4 | 5975 | goto out; |
bf269551 CL |
5976 | status = decode_putfh(xdr); |
5977 | if (status) | |
1da177e4 | 5978 | goto out; |
bf269551 CL |
5979 | status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); |
5980 | if (status) | |
6caf2c82 TM |
5981 | goto out; |
5982 | /* Current FH is target directory */ | |
6926afd1 | 5983 | if (decode_getfattr(xdr, res->new_fattr, res->server)) |
6caf2c82 | 5984 | goto out; |
bf269551 CL |
5985 | status = decode_restorefh(xdr); |
5986 | if (status) | |
6caf2c82 | 5987 | goto out; |
6926afd1 | 5988 | decode_getfattr(xdr, res->old_fattr, res->server); |
1da177e4 LT |
5989 | out: |
5990 | return status; | |
5991 | } | |
5992 | ||
5993 | /* | |
5994 | * Decode LINK response | |
5995 | */ | |
bf269551 CL |
5996 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5997 | struct nfs4_link_res *res) | |
1da177e4 | 5998 | { |
1da177e4 LT |
5999 | struct compound_hdr hdr; |
6000 | int status; | |
6c0195a4 | 6001 | |
bf269551 | 6002 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6003 | if (status) |
6004 | goto out; | |
bf269551 | 6005 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
9b7b9fcc | 6006 | if (status) |
1da177e4 | 6007 | goto out; |
bf269551 CL |
6008 | status = decode_putfh(xdr); |
6009 | if (status) | |
1da177e4 | 6010 | goto out; |
bf269551 CL |
6011 | status = decode_savefh(xdr); |
6012 | if (status) | |
1da177e4 | 6013 | goto out; |
bf269551 CL |
6014 | status = decode_putfh(xdr); |
6015 | if (status) | |
1da177e4 | 6016 | goto out; |
bf269551 CL |
6017 | status = decode_link(xdr, &res->cinfo); |
6018 | if (status) | |
91ba2eee TM |
6019 | goto out; |
6020 | /* | |
6021 | * Note order: OP_LINK leaves the directory as the current | |
6022 | * filehandle. | |
6023 | */ | |
6926afd1 | 6024 | if (decode_getfattr(xdr, res->dir_attr, res->server)) |
91ba2eee | 6025 | goto out; |
bf269551 CL |
6026 | status = decode_restorefh(xdr); |
6027 | if (status) | |
91ba2eee | 6028 | goto out; |
6926afd1 | 6029 | decode_getfattr(xdr, res->fattr, res->server); |
1da177e4 LT |
6030 | out: |
6031 | return status; | |
6032 | } | |
6033 | ||
6034 | /* | |
6035 | * Decode CREATE response | |
6036 | */ | |
bf269551 CL |
6037 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
6038 | struct nfs4_create_res *res) | |
1da177e4 | 6039 | { |
1da177e4 LT |
6040 | struct compound_hdr hdr; |
6041 | int status; | |
6c0195a4 | 6042 | |
bf269551 | 6043 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6044 | if (status) |
6045 | goto out; | |
bf269551 | 6046 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
9b7b9fcc | 6047 | if (status) |
1da177e4 | 6048 | goto out; |
bf269551 CL |
6049 | status = decode_putfh(xdr); |
6050 | if (status) | |
1da177e4 | 6051 | goto out; |
bf269551 CL |
6052 | status = decode_savefh(xdr); |
6053 | if (status) | |
56ae19f3 | 6054 | goto out; |
bf269551 CL |
6055 | status = decode_create(xdr, &res->dir_cinfo); |
6056 | if (status) | |
1da177e4 | 6057 | goto out; |
bf269551 CL |
6058 | status = decode_getfh(xdr, res->fh); |
6059 | if (status) | |
1da177e4 | 6060 | goto out; |
6926afd1 | 6061 | if (decode_getfattr(xdr, res->fattr, res->server)) |
56ae19f3 | 6062 | goto out; |
bf269551 CL |
6063 | status = decode_restorefh(xdr); |
6064 | if (status) | |
56ae19f3 | 6065 | goto out; |
6926afd1 | 6066 | decode_getfattr(xdr, res->dir_fattr, res->server); |
1da177e4 LT |
6067 | out: |
6068 | return status; | |
6069 | } | |
6070 | ||
6071 | /* | |
6072 | * Decode SYMLINK response | |
6073 | */ | |
bf269551 CL |
6074 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
6075 | struct nfs4_create_res *res) | |
1da177e4 | 6076 | { |
bf269551 | 6077 | return nfs4_xdr_dec_create(rqstp, xdr, res); |
1da177e4 LT |
6078 | } |
6079 | ||
6080 | /* | |
6081 | * Decode GETATTR response | |
6082 | */ | |
bf269551 CL |
6083 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
6084 | struct nfs4_getattr_res *res) | |
1da177e4 | 6085 | { |
1da177e4 LT |
6086 | struct compound_hdr hdr; |
6087 | int status; | |
6c0195a4 | 6088 | |
bf269551 | 6089 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6090 | if (status) |
6091 | goto out; | |
bf269551 | 6092 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
6093 | if (status) |
6094 | goto out; | |
bf269551 | 6095 | status = decode_putfh(xdr); |
1da177e4 LT |
6096 | if (status) |
6097 | goto out; | |
6926afd1 | 6098 | status = decode_getfattr(xdr, res->fattr, res->server); |
1da177e4 LT |
6099 | out: |
6100 | return status; | |
1da177e4 LT |
6101 | } |
6102 | ||
23ec6965 BF |
6103 | /* |
6104 | * Encode an SETACL request | |
6105 | */ | |
9f06c719 CL |
6106 | static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, |
6107 | struct nfs_setaclargs *args) | |
23ec6965 | 6108 | { |
05d564fe | 6109 | struct compound_hdr hdr = { |
66cc0429 | 6110 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 6111 | }; |
05d564fe | 6112 | |
9f06c719 CL |
6113 | encode_compound_hdr(xdr, req, &hdr); |
6114 | encode_sequence(xdr, &args->seq_args, &hdr); | |
6115 | encode_putfh(xdr, args->fh, &hdr); | |
6116 | encode_setacl(xdr, args, &hdr); | |
d017931c | 6117 | encode_nops(&hdr); |
23ec6965 | 6118 | } |
05d564fe | 6119 | |
23ec6965 BF |
6120 | /* |
6121 | * Decode SETACL response | |
6122 | */ | |
6123 | static int | |
bf269551 | 6124 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
73c403a9 | 6125 | struct nfs_setaclres *res) |
23ec6965 | 6126 | { |
23ec6965 BF |
6127 | struct compound_hdr hdr; |
6128 | int status; | |
6129 | ||
bf269551 | 6130 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6131 | if (status) |
6132 | goto out; | |
bf269551 | 6133 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
23ec6965 BF |
6134 | if (status) |
6135 | goto out; | |
bf269551 | 6136 | status = decode_putfh(xdr); |
23ec6965 BF |
6137 | if (status) |
6138 | goto out; | |
bf269551 | 6139 | status = decode_setattr(xdr); |
23ec6965 BF |
6140 | out: |
6141 | return status; | |
6142 | } | |
1da177e4 | 6143 | |
029d105e BF |
6144 | /* |
6145 | * Decode GETACL response | |
6146 | */ | |
6147 | static int | |
bf269551 | 6148 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
663c79b3 | 6149 | struct nfs_getaclres *res) |
029d105e | 6150 | { |
029d105e BF |
6151 | struct compound_hdr hdr; |
6152 | int status; | |
6153 | ||
331818f1 TM |
6154 | if (res->acl_scratch != NULL) { |
6155 | void *p = page_address(res->acl_scratch); | |
6156 | xdr_set_scratch_buffer(xdr, p, PAGE_SIZE); | |
6157 | } | |
bf269551 | 6158 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6159 | if (status) |
6160 | goto out; | |
bf269551 | 6161 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
029d105e BF |
6162 | if (status) |
6163 | goto out; | |
bf269551 | 6164 | status = decode_putfh(xdr); |
029d105e BF |
6165 | if (status) |
6166 | goto out; | |
bf118a34 | 6167 | status = decode_getacl(xdr, rqstp, res); |
029d105e BF |
6168 | |
6169 | out: | |
6170 | return status; | |
6171 | } | |
6172 | ||
1da177e4 LT |
6173 | /* |
6174 | * Decode CLOSE response | |
6175 | */ | |
bf269551 CL |
6176 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
6177 | struct nfs_closeres *res) | |
1da177e4 | 6178 | { |
05d564fe AA |
6179 | struct compound_hdr hdr; |
6180 | int status; | |
6181 | ||
bf269551 | 6182 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6183 | if (status) |
6184 | goto out; | |
bf269551 | 6185 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
05d564fe AA |
6186 | if (status) |
6187 | goto out; | |
bf269551 | 6188 | status = decode_putfh(xdr); |
05d564fe AA |
6189 | if (status) |
6190 | goto out; | |
bf269551 | 6191 | status = decode_close(xdr, res); |
516a6af6 TM |
6192 | if (status != 0) |
6193 | goto out; | |
6194 | /* | |
6195 | * Note: Server may do delete on close for this file | |
6196 | * in which case the getattr call will fail with | |
6197 | * an ESTALE error. Shouldn't be a problem, | |
6198 | * though, since fattr->valid will remain unset. | |
6199 | */ | |
6926afd1 | 6200 | decode_getfattr(xdr, res->fattr, res->server); |
1da177e4 | 6201 | out: |
05d564fe | 6202 | return status; |
1da177e4 LT |
6203 | } |
6204 | ||
6205 | /* | |
6206 | * Decode OPEN response | |
6207 | */ | |
bf269551 CL |
6208 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
6209 | struct nfs_openres *res) | |
1da177e4 | 6210 | { |
05d564fe AA |
6211 | struct compound_hdr hdr; |
6212 | int status; | |
6213 | ||
bf269551 | 6214 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6215 | if (status) |
6216 | goto out; | |
bf269551 | 6217 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
05d564fe AA |
6218 | if (status) |
6219 | goto out; | |
bf269551 | 6220 | status = decode_putfh(xdr); |
05d564fe AA |
6221 | if (status) |
6222 | goto out; | |
bf269551 | 6223 | status = decode_savefh(xdr); |
05d564fe AA |
6224 | if (status) |
6225 | goto out; | |
bf269551 | 6226 | status = decode_open(xdr, res); |
56ae19f3 TM |
6227 | if (status) |
6228 | goto out; | |
bf269551 | 6229 | if (decode_getfh(xdr, &res->fh) != 0) |
1da177e4 | 6230 | goto out; |
6926afd1 | 6231 | if (decode_getfattr(xdr, res->f_attr, res->server) != 0) |
56ae19f3 | 6232 | goto out; |
bf269551 | 6233 | if (decode_restorefh(xdr) != 0) |
56ae19f3 | 6234 | goto out; |
6926afd1 | 6235 | decode_getfattr(xdr, res->dir_attr, res->server); |
1da177e4 | 6236 | out: |
05d564fe | 6237 | return status; |
1da177e4 LT |
6238 | } |
6239 | ||
6240 | /* | |
6241 | * Decode OPEN_CONFIRM response | |
6242 | */ | |
bf269551 CL |
6243 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, |
6244 | struct xdr_stream *xdr, | |
6245 | struct nfs_open_confirmres *res) | |
1da177e4 | 6246 | { |
05d564fe AA |
6247 | struct compound_hdr hdr; |
6248 | int status; | |
6249 | ||
bf269551 | 6250 | status = decode_compound_hdr(xdr, &hdr); |
05d564fe AA |
6251 | if (status) |
6252 | goto out; | |
bf269551 | 6253 | status = decode_putfh(xdr); |
05d564fe AA |
6254 | if (status) |
6255 | goto out; | |
bf269551 | 6256 | status = decode_open_confirm(xdr, res); |
1da177e4 | 6257 | out: |
05d564fe | 6258 | return status; |
1da177e4 LT |
6259 | } |
6260 | ||
6261 | /* | |
6262 | * Decode OPEN response | |
6263 | */ | |
bf269551 CL |
6264 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, |
6265 | struct xdr_stream *xdr, | |
6266 | struct nfs_openres *res) | |
1da177e4 | 6267 | { |
05d564fe AA |
6268 | struct compound_hdr hdr; |
6269 | int status; | |
6270 | ||
bf269551 | 6271 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6272 | if (status) |
6273 | goto out; | |
bf269551 | 6274 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
05d564fe AA |
6275 | if (status) |
6276 | goto out; | |
bf269551 | 6277 | status = decode_putfh(xdr); |
05d564fe AA |
6278 | if (status) |
6279 | goto out; | |
bf269551 | 6280 | status = decode_open(xdr, res); |
05d564fe AA |
6281 | if (status) |
6282 | goto out; | |
6926afd1 | 6283 | decode_getfattr(xdr, res->f_attr, res->server); |
1da177e4 | 6284 | out: |
05d564fe | 6285 | return status; |
1da177e4 LT |
6286 | } |
6287 | ||
6288 | /* | |
6289 | * Decode SETATTR response | |
6290 | */ | |
bf269551 CL |
6291 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, |
6292 | struct xdr_stream *xdr, | |
6293 | struct nfs_setattrres *res) | |
1da177e4 | 6294 | { |
05d564fe AA |
6295 | struct compound_hdr hdr; |
6296 | int status; | |
6297 | ||
bf269551 | 6298 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6299 | if (status) |
6300 | goto out; | |
bf269551 | 6301 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
05d564fe AA |
6302 | if (status) |
6303 | goto out; | |
bf269551 | 6304 | status = decode_putfh(xdr); |
05d564fe AA |
6305 | if (status) |
6306 | goto out; | |
bf269551 | 6307 | status = decode_setattr(xdr); |
05d564fe AA |
6308 | if (status) |
6309 | goto out; | |
6926afd1 | 6310 | decode_getfattr(xdr, res->fattr, res->server); |
1da177e4 | 6311 | out: |
05d564fe | 6312 | return status; |
1da177e4 LT |
6313 | } |
6314 | ||
6315 | /* | |
6316 | * Decode LOCK response | |
6317 | */ | |
bf269551 CL |
6318 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
6319 | struct nfs_lock_res *res) | |
1da177e4 | 6320 | { |
1da177e4 LT |
6321 | struct compound_hdr hdr; |
6322 | int status; | |
6323 | ||
bf269551 | 6324 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6325 | if (status) |
6326 | goto out; | |
bf269551 | 6327 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
6328 | if (status) |
6329 | goto out; | |
bf269551 | 6330 | status = decode_putfh(xdr); |
1da177e4 LT |
6331 | if (status) |
6332 | goto out; | |
bf269551 | 6333 | status = decode_lock(xdr, res); |
1da177e4 LT |
6334 | out: |
6335 | return status; | |
6336 | } | |
6337 | ||
6338 | /* | |
6339 | * Decode LOCKT response | |
6340 | */ | |
bf269551 CL |
6341 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
6342 | struct nfs_lockt_res *res) | |
1da177e4 | 6343 | { |
1da177e4 LT |
6344 | struct compound_hdr hdr; |
6345 | int status; | |
6346 | ||
bf269551 | 6347 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6348 | if (status) |
6349 | goto out; | |
bf269551 | 6350 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
6351 | if (status) |
6352 | goto out; | |
bf269551 | 6353 | status = decode_putfh(xdr); |
1da177e4 LT |
6354 | if (status) |
6355 | goto out; | |
bf269551 | 6356 | status = decode_lockt(xdr, res); |
1da177e4 LT |
6357 | out: |
6358 | return status; | |
6359 | } | |
6360 | ||
6361 | /* | |
6362 | * Decode LOCKU response | |
6363 | */ | |
bf269551 CL |
6364 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
6365 | struct nfs_locku_res *res) | |
1da177e4 | 6366 | { |
1da177e4 LT |
6367 | struct compound_hdr hdr; |
6368 | int status; | |
6369 | ||
bf269551 | 6370 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6371 | if (status) |
6372 | goto out; | |
bf269551 | 6373 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
6374 | if (status) |
6375 | goto out; | |
bf269551 | 6376 | status = decode_putfh(xdr); |
1da177e4 LT |
6377 | if (status) |
6378 | goto out; | |
bf269551 | 6379 | status = decode_locku(xdr, res); |
1da177e4 LT |
6380 | out: |
6381 | return status; | |
6382 | } | |
6383 | ||
bf269551 CL |
6384 | static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, |
6385 | struct xdr_stream *xdr, void *dummy) | |
d3c7b7cc | 6386 | { |
d3c7b7cc TM |
6387 | struct compound_hdr hdr; |
6388 | int status; | |
6389 | ||
bf269551 | 6390 | status = decode_compound_hdr(xdr, &hdr); |
d3c7b7cc | 6391 | if (!status) |
bf269551 | 6392 | status = decode_release_lockowner(xdr); |
d3c7b7cc TM |
6393 | return status; |
6394 | } | |
6395 | ||
1da177e4 LT |
6396 | /* |
6397 | * Decode READLINK response | |
6398 | */ | |
bf269551 CL |
6399 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, |
6400 | struct xdr_stream *xdr, | |
f50c7000 | 6401 | struct nfs4_readlink_res *res) |
1da177e4 | 6402 | { |
1da177e4 LT |
6403 | struct compound_hdr hdr; |
6404 | int status; | |
6405 | ||
bf269551 | 6406 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6407 | if (status) |
6408 | goto out; | |
bf269551 | 6409 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
6410 | if (status) |
6411 | goto out; | |
bf269551 | 6412 | status = decode_putfh(xdr); |
1da177e4 LT |
6413 | if (status) |
6414 | goto out; | |
bf269551 | 6415 | status = decode_readlink(xdr, rqstp); |
1da177e4 LT |
6416 | out: |
6417 | return status; | |
6418 | } | |
6419 | ||
6420 | /* | |
6421 | * Decode READDIR response | |
6422 | */ | |
bf269551 CL |
6423 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
6424 | struct nfs4_readdir_res *res) | |
1da177e4 | 6425 | { |
1da177e4 LT |
6426 | struct compound_hdr hdr; |
6427 | int status; | |
6428 | ||
bf269551 | 6429 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6430 | if (status) |
6431 | goto out; | |
bf269551 | 6432 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
6433 | if (status) |
6434 | goto out; | |
bf269551 | 6435 | status = decode_putfh(xdr); |
1da177e4 LT |
6436 | if (status) |
6437 | goto out; | |
bf269551 | 6438 | status = decode_readdir(xdr, rqstp, res); |
1da177e4 LT |
6439 | out: |
6440 | return status; | |
6441 | } | |
6442 | ||
6443 | /* | |
6444 | * Decode Read response | |
6445 | */ | |
bf269551 CL |
6446 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
6447 | struct nfs_readres *res) | |
1da177e4 | 6448 | { |
1da177e4 LT |
6449 | struct compound_hdr hdr; |
6450 | int status; | |
6451 | ||
bf269551 | 6452 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6453 | if (status) |
6454 | goto out; | |
bf269551 | 6455 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
6456 | if (status) |
6457 | goto out; | |
bf269551 | 6458 | status = decode_putfh(xdr); |
1da177e4 LT |
6459 | if (status) |
6460 | goto out; | |
bf269551 | 6461 | status = decode_read(xdr, rqstp, res); |
1da177e4 LT |
6462 | if (!status) |
6463 | status = res->count; | |
6464 | out: | |
6465 | return status; | |
6466 | } | |
6467 | ||
6468 | /* | |
6469 | * Decode WRITE response | |
6470 | */ | |
bf269551 CL |
6471 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
6472 | struct nfs_writeres *res) | |
1da177e4 | 6473 | { |
1da177e4 LT |
6474 | struct compound_hdr hdr; |
6475 | int status; | |
6476 | ||
bf269551 | 6477 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6478 | if (status) |
6479 | goto out; | |
bf269551 | 6480 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
6481 | if (status) |
6482 | goto out; | |
bf269551 | 6483 | status = decode_putfh(xdr); |
1da177e4 LT |
6484 | if (status) |
6485 | goto out; | |
bf269551 | 6486 | status = decode_write(xdr, res); |
4f9838c7 TM |
6487 | if (status) |
6488 | goto out; | |
7ffd1064 | 6489 | if (res->fattr) |
6926afd1 | 6490 | decode_getfattr(xdr, res->fattr, res->server); |
1da177e4 LT |
6491 | if (!status) |
6492 | status = res->count; | |
6493 | out: | |
6494 | return status; | |
6495 | } | |
6496 | ||
6497 | /* | |
6498 | * Decode COMMIT response | |
6499 | */ | |
bf269551 CL |
6500 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
6501 | struct nfs_writeres *res) | |
1da177e4 | 6502 | { |
1da177e4 LT |
6503 | struct compound_hdr hdr; |
6504 | int status; | |
6505 | ||
bf269551 | 6506 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6507 | if (status) |
6508 | goto out; | |
bf269551 | 6509 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
6510 | if (status) |
6511 | goto out; | |
bf269551 | 6512 | status = decode_putfh(xdr); |
1da177e4 LT |
6513 | if (status) |
6514 | goto out; | |
bf269551 | 6515 | status = decode_commit(xdr, res); |
4f9838c7 TM |
6516 | if (status) |
6517 | goto out; | |
988b6dce | 6518 | if (res->fattr) |
6926afd1 | 6519 | decode_getfattr(xdr, res->fattr, res->server); |
1da177e4 LT |
6520 | out: |
6521 | return status; | |
6522 | } | |
6523 | ||
6524 | /* | |
8b173218 | 6525 | * Decode FSINFO response |
1da177e4 | 6526 | */ |
bf269551 | 6527 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, |
3dda5e43 | 6528 | struct nfs4_fsinfo_res *res) |
1da177e4 | 6529 | { |
1da177e4 LT |
6530 | struct compound_hdr hdr; |
6531 | int status; | |
6532 | ||
bf269551 | 6533 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc | 6534 | if (!status) |
bf269551 | 6535 | status = decode_sequence(xdr, &res->seq_res, req); |
1da177e4 | 6536 | if (!status) |
bf269551 | 6537 | status = decode_putfh(xdr); |
1da177e4 | 6538 | if (!status) |
bf269551 | 6539 | status = decode_fsinfo(xdr, res->fsinfo); |
1da177e4 LT |
6540 | return status; |
6541 | } | |
6542 | ||
6543 | /* | |
8b173218 | 6544 | * Decode PATHCONF response |
1da177e4 | 6545 | */ |
bf269551 | 6546 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, |
d45b2989 | 6547 | struct nfs4_pathconf_res *res) |
1da177e4 | 6548 | { |
1da177e4 LT |
6549 | struct compound_hdr hdr; |
6550 | int status; | |
6551 | ||
bf269551 | 6552 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc | 6553 | if (!status) |
bf269551 | 6554 | status = decode_sequence(xdr, &res->seq_res, req); |
1da177e4 | 6555 | if (!status) |
bf269551 | 6556 | status = decode_putfh(xdr); |
1da177e4 | 6557 | if (!status) |
bf269551 | 6558 | status = decode_pathconf(xdr, res->pathconf); |
1da177e4 LT |
6559 | return status; |
6560 | } | |
6561 | ||
6562 | /* | |
8b173218 | 6563 | * Decode STATFS response |
1da177e4 | 6564 | */ |
bf269551 | 6565 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, |
24ad148a | 6566 | struct nfs4_statfs_res *res) |
1da177e4 | 6567 | { |
1da177e4 LT |
6568 | struct compound_hdr hdr; |
6569 | int status; | |
6570 | ||
bf269551 | 6571 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc | 6572 | if (!status) |
bf269551 | 6573 | status = decode_sequence(xdr, &res->seq_res, req); |
1da177e4 | 6574 | if (!status) |
bf269551 | 6575 | status = decode_putfh(xdr); |
1da177e4 | 6576 | if (!status) |
bf269551 | 6577 | status = decode_statfs(xdr, res->fsstat); |
1da177e4 LT |
6578 | return status; |
6579 | } | |
6580 | ||
6581 | /* | |
8b173218 | 6582 | * Decode GETATTR_BITMAP response |
1da177e4 | 6583 | */ |
bf269551 CL |
6584 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, |
6585 | struct xdr_stream *xdr, | |
6586 | struct nfs4_server_caps_res *res) | |
1da177e4 | 6587 | { |
1da177e4 LT |
6588 | struct compound_hdr hdr; |
6589 | int status; | |
6590 | ||
bf269551 | 6591 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6592 | if (status) |
6593 | goto out; | |
bf269551 | 6594 | status = decode_sequence(xdr, &res->seq_res, req); |
9b7b9fcc | 6595 | if (status) |
1da177e4 | 6596 | goto out; |
bf269551 CL |
6597 | status = decode_putfh(xdr); |
6598 | if (status) | |
1da177e4 | 6599 | goto out; |
bf269551 | 6600 | status = decode_server_caps(xdr, res); |
1da177e4 LT |
6601 | out: |
6602 | return status; | |
6603 | } | |
6604 | ||
6605 | /* | |
6606 | * Decode RENEW response | |
6607 | */ | |
bf269551 CL |
6608 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
6609 | void *__unused) | |
1da177e4 | 6610 | { |
1da177e4 LT |
6611 | struct compound_hdr hdr; |
6612 | int status; | |
6613 | ||
bf269551 | 6614 | status = decode_compound_hdr(xdr, &hdr); |
1da177e4 | 6615 | if (!status) |
bf269551 | 6616 | status = decode_renew(xdr); |
1da177e4 LT |
6617 | return status; |
6618 | } | |
6619 | ||
6620 | /* | |
8b173218 | 6621 | * Decode SETCLIENTID response |
1da177e4 | 6622 | */ |
bf269551 CL |
6623 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, |
6624 | struct xdr_stream *xdr, | |
6625 | struct nfs4_setclientid_res *res) | |
1da177e4 | 6626 | { |
1da177e4 LT |
6627 | struct compound_hdr hdr; |
6628 | int status; | |
6629 | ||
bf269551 | 6630 | status = decode_compound_hdr(xdr, &hdr); |
1da177e4 | 6631 | if (!status) |
bf269551 | 6632 | status = decode_setclientid(xdr, res); |
1da177e4 LT |
6633 | return status; |
6634 | } | |
6635 | ||
6636 | /* | |
8b173218 | 6637 | * Decode SETCLIENTID_CONFIRM response |
1da177e4 | 6638 | */ |
bf269551 CL |
6639 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, |
6640 | struct xdr_stream *xdr, | |
6641 | struct nfs_fsinfo *fsinfo) | |
1da177e4 | 6642 | { |
1da177e4 LT |
6643 | struct compound_hdr hdr; |
6644 | int status; | |
6645 | ||
bf269551 | 6646 | status = decode_compound_hdr(xdr, &hdr); |
1da177e4 | 6647 | if (!status) |
bf269551 | 6648 | status = decode_setclientid_confirm(xdr); |
1da177e4 | 6649 | if (!status) |
bf269551 | 6650 | status = decode_putrootfh(xdr); |
1da177e4 | 6651 | if (!status) |
bf269551 | 6652 | status = decode_fsinfo(xdr, fsinfo); |
1da177e4 LT |
6653 | return status; |
6654 | } | |
6655 | ||
6656 | /* | |
8b173218 | 6657 | * Decode DELEGRETURN response |
1da177e4 | 6658 | */ |
bf269551 CL |
6659 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, |
6660 | struct xdr_stream *xdr, | |
6661 | struct nfs4_delegreturnres *res) | |
1da177e4 | 6662 | { |
1da177e4 LT |
6663 | struct compound_hdr hdr; |
6664 | int status; | |
6665 | ||
bf269551 | 6666 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6667 | if (status) |
6668 | goto out; | |
bf269551 | 6669 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
9b7b9fcc | 6670 | if (status) |
fa178f29 | 6671 | goto out; |
bf269551 | 6672 | status = decode_putfh(xdr); |
fa178f29 TM |
6673 | if (status != 0) |
6674 | goto out; | |
bf269551 | 6675 | status = decode_delegreturn(xdr); |
556ae3bb JL |
6676 | if (status != 0) |
6677 | goto out; | |
6926afd1 | 6678 | decode_getfattr(xdr, res->fattr, res->server); |
fa178f29 | 6679 | out: |
1da177e4 LT |
6680 | return status; |
6681 | } | |
6682 | ||
683b57b4 | 6683 | /* |
8b173218 | 6684 | * Decode FS_LOCATIONS response |
683b57b4 | 6685 | */ |
bf269551 CL |
6686 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, |
6687 | struct xdr_stream *xdr, | |
22958463 | 6688 | struct nfs4_fs_locations_res *res) |
683b57b4 | 6689 | { |
683b57b4 TM |
6690 | struct compound_hdr hdr; |
6691 | int status; | |
6692 | ||
bf269551 | 6693 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6694 | if (status) |
6695 | goto out; | |
bf269551 | 6696 | status = decode_sequence(xdr, &res->seq_res, req); |
9b7b9fcc | 6697 | if (status) |
683b57b4 | 6698 | goto out; |
bf269551 CL |
6699 | status = decode_putfh(xdr); |
6700 | if (status) | |
683b57b4 | 6701 | goto out; |
bf269551 CL |
6702 | status = decode_lookup(xdr); |
6703 | if (status) | |
683b57b4 | 6704 | goto out; |
bf269551 | 6705 | xdr_enter_page(xdr, PAGE_SIZE); |
8b7e3f49 TM |
6706 | status = decode_getfattr_generic(xdr, &res->fs_locations->fattr, |
6707 | NULL, res->fs_locations, | |
6708 | res->fs_locations->server); | |
683b57b4 TM |
6709 | out: |
6710 | return status; | |
6711 | } | |
6712 | ||
5a5ea0d4 BS |
6713 | /* |
6714 | * Decode SECINFO response | |
6715 | */ | |
6716 | static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, | |
6717 | struct xdr_stream *xdr, | |
6718 | struct nfs4_secinfo_res *res) | |
6719 | { | |
6720 | struct compound_hdr hdr; | |
6721 | int status; | |
6722 | ||
6723 | status = decode_compound_hdr(xdr, &hdr); | |
6724 | if (status) | |
6725 | goto out; | |
6726 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
6727 | if (status) | |
6728 | goto out; | |
6729 | status = decode_putfh(xdr); | |
6730 | if (status) | |
6731 | goto out; | |
6732 | status = decode_secinfo(xdr, res); | |
5a5ea0d4 BS |
6733 | out: |
6734 | return status; | |
6735 | } | |
6736 | ||
99fe60d0 BH |
6737 | #if defined(CONFIG_NFS_V4_1) |
6738 | /* | |
8b173218 | 6739 | * Decode EXCHANGE_ID response |
99fe60d0 | 6740 | */ |
bf269551 CL |
6741 | static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, |
6742 | struct xdr_stream *xdr, | |
99fe60d0 BH |
6743 | void *res) |
6744 | { | |
99fe60d0 BH |
6745 | struct compound_hdr hdr; |
6746 | int status; | |
6747 | ||
bf269551 | 6748 | status = decode_compound_hdr(xdr, &hdr); |
99fe60d0 | 6749 | if (!status) |
bf269551 | 6750 | status = decode_exchange_id(xdr, res); |
99fe60d0 BH |
6751 | return status; |
6752 | } | |
2050f0cc | 6753 | |
fc931582 | 6754 | /* |
8b173218 | 6755 | * Decode CREATE_SESSION response |
fc931582 | 6756 | */ |
bf269551 CL |
6757 | static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, |
6758 | struct xdr_stream *xdr, | |
fc931582 AA |
6759 | struct nfs41_create_session_res *res) |
6760 | { | |
fc931582 AA |
6761 | struct compound_hdr hdr; |
6762 | int status; | |
6763 | ||
bf269551 | 6764 | status = decode_compound_hdr(xdr, &hdr); |
fc931582 | 6765 | if (!status) |
bf269551 | 6766 | status = decode_create_session(xdr, res); |
fc931582 AA |
6767 | return status; |
6768 | } | |
6769 | ||
0f3e66c6 | 6770 | /* |
8b173218 | 6771 | * Decode DESTROY_SESSION response |
0f3e66c6 | 6772 | */ |
bf269551 CL |
6773 | static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, |
6774 | struct xdr_stream *xdr, | |
6775 | void *res) | |
0f3e66c6 | 6776 | { |
0f3e66c6 AA |
6777 | struct compound_hdr hdr; |
6778 | int status; | |
6779 | ||
bf269551 | 6780 | status = decode_compound_hdr(xdr, &hdr); |
0f3e66c6 | 6781 | if (!status) |
bf269551 | 6782 | status = decode_destroy_session(xdr, res); |
0f3e66c6 AA |
6783 | return status; |
6784 | } | |
6785 | ||
fc01cea9 | 6786 | /* |
8b173218 | 6787 | * Decode SEQUENCE response |
fc01cea9 | 6788 | */ |
bf269551 CL |
6789 | static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, |
6790 | struct xdr_stream *xdr, | |
fc01cea9 AA |
6791 | struct nfs4_sequence_res *res) |
6792 | { | |
fc01cea9 AA |
6793 | struct compound_hdr hdr; |
6794 | int status; | |
6795 | ||
bf269551 | 6796 | status = decode_compound_hdr(xdr, &hdr); |
fc01cea9 | 6797 | if (!status) |
bf269551 | 6798 | status = decode_sequence(xdr, res, rqstp); |
fc01cea9 AA |
6799 | return status; |
6800 | } | |
6801 | ||
2050f0cc | 6802 | /* |
8b173218 | 6803 | * Decode GET_LEASE_TIME response |
2050f0cc | 6804 | */ |
bf269551 CL |
6805 | static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, |
6806 | struct xdr_stream *xdr, | |
2050f0cc AA |
6807 | struct nfs4_get_lease_time_res *res) |
6808 | { | |
2050f0cc AA |
6809 | struct compound_hdr hdr; |
6810 | int status; | |
6811 | ||
bf269551 | 6812 | status = decode_compound_hdr(xdr, &hdr); |
2050f0cc | 6813 | if (!status) |
bf269551 | 6814 | status = decode_sequence(xdr, &res->lr_seq_res, rqstp); |
2050f0cc | 6815 | if (!status) |
bf269551 | 6816 | status = decode_putrootfh(xdr); |
2050f0cc | 6817 | if (!status) |
bf269551 | 6818 | status = decode_fsinfo(xdr, res->lr_fsinfo); |
2050f0cc AA |
6819 | return status; |
6820 | } | |
18019753 RL |
6821 | |
6822 | /* | |
6823 | * Decode RECLAIM_COMPLETE response | |
6824 | */ | |
bf269551 CL |
6825 | static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, |
6826 | struct xdr_stream *xdr, | |
18019753 RL |
6827 | struct nfs41_reclaim_complete_res *res) |
6828 | { | |
18019753 RL |
6829 | struct compound_hdr hdr; |
6830 | int status; | |
6831 | ||
bf269551 | 6832 | status = decode_compound_hdr(xdr, &hdr); |
18019753 | 6833 | if (!status) |
bf269551 | 6834 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
18019753 | 6835 | if (!status) |
bf269551 | 6836 | status = decode_reclaim_complete(xdr, (void *)NULL); |
18019753 RL |
6837 | return status; |
6838 | } | |
b1f69b75 | 6839 | |
7f11d8d3 AA |
6840 | /* |
6841 | * Decode GETDEVICELIST response | |
6842 | */ | |
6843 | static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp, | |
6844 | struct xdr_stream *xdr, | |
6845 | struct nfs4_getdevicelist_res *res) | |
6846 | { | |
6847 | struct compound_hdr hdr; | |
6848 | int status; | |
6849 | ||
6850 | dprintk("encoding getdevicelist!\n"); | |
6851 | ||
6852 | status = decode_compound_hdr(xdr, &hdr); | |
6853 | if (status != 0) | |
6854 | goto out; | |
6855 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
6856 | if (status != 0) | |
6857 | goto out; | |
6858 | status = decode_putfh(xdr); | |
6859 | if (status != 0) | |
6860 | goto out; | |
6861 | status = decode_getdevicelist(xdr, res->devlist); | |
6862 | out: | |
6863 | return status; | |
6864 | } | |
6865 | ||
b1f69b75 AA |
6866 | /* |
6867 | * Decode GETDEVINFO response | |
6868 | */ | |
bf269551 CL |
6869 | static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, |
6870 | struct xdr_stream *xdr, | |
b1f69b75 AA |
6871 | struct nfs4_getdeviceinfo_res *res) |
6872 | { | |
b1f69b75 AA |
6873 | struct compound_hdr hdr; |
6874 | int status; | |
6875 | ||
bf269551 | 6876 | status = decode_compound_hdr(xdr, &hdr); |
b1f69b75 AA |
6877 | if (status != 0) |
6878 | goto out; | |
bf269551 | 6879 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
b1f69b75 AA |
6880 | if (status != 0) |
6881 | goto out; | |
bf269551 | 6882 | status = decode_getdeviceinfo(xdr, res->pdev); |
b1f69b75 AA |
6883 | out: |
6884 | return status; | |
6885 | } | |
6886 | ||
6887 | /* | |
6888 | * Decode LAYOUTGET response | |
6889 | */ | |
bf269551 CL |
6890 | static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, |
6891 | struct xdr_stream *xdr, | |
b1f69b75 AA |
6892 | struct nfs4_layoutget_res *res) |
6893 | { | |
b1f69b75 AA |
6894 | struct compound_hdr hdr; |
6895 | int status; | |
6896 | ||
bf269551 | 6897 | status = decode_compound_hdr(xdr, &hdr); |
b1f69b75 AA |
6898 | if (status) |
6899 | goto out; | |
bf269551 | 6900 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
b1f69b75 AA |
6901 | if (status) |
6902 | goto out; | |
bf269551 | 6903 | status = decode_putfh(xdr); |
b1f69b75 AA |
6904 | if (status) |
6905 | goto out; | |
bf269551 | 6906 | status = decode_layoutget(xdr, rqstp, res); |
b1f69b75 AA |
6907 | out: |
6908 | return status; | |
6909 | } | |
863a3c6c | 6910 | |
cbe82603 BH |
6911 | /* |
6912 | * Decode LAYOUTRETURN response | |
6913 | */ | |
6914 | static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, | |
6915 | struct xdr_stream *xdr, | |
6916 | struct nfs4_layoutreturn_res *res) | |
6917 | { | |
6918 | struct compound_hdr hdr; | |
6919 | int status; | |
6920 | ||
6921 | status = decode_compound_hdr(xdr, &hdr); | |
6922 | if (status) | |
6923 | goto out; | |
6924 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
6925 | if (status) | |
6926 | goto out; | |
6927 | status = decode_putfh(xdr); | |
6928 | if (status) | |
6929 | goto out; | |
6930 | status = decode_layoutreturn(xdr, res); | |
6931 | out: | |
6932 | return status; | |
6933 | } | |
6934 | ||
863a3c6c AA |
6935 | /* |
6936 | * Decode LAYOUTCOMMIT response | |
6937 | */ | |
6938 | static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, | |
6939 | struct xdr_stream *xdr, | |
6940 | struct nfs4_layoutcommit_res *res) | |
6941 | { | |
6942 | struct compound_hdr hdr; | |
6943 | int status; | |
6944 | ||
6945 | status = decode_compound_hdr(xdr, &hdr); | |
6946 | if (status) | |
6947 | goto out; | |
6948 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
6949 | if (status) | |
6950 | goto out; | |
6951 | status = decode_putfh(xdr); | |
6952 | if (status) | |
6953 | goto out; | |
6954 | status = decode_layoutcommit(xdr, rqstp, res); | |
6955 | if (status) | |
6956 | goto out; | |
6926afd1 | 6957 | decode_getfattr(xdr, res->fattr, res->server); |
863a3c6c AA |
6958 | out: |
6959 | return status; | |
6960 | } | |
fca78d6d BS |
6961 | |
6962 | /* | |
6963 | * Decode SECINFO_NO_NAME response | |
6964 | */ | |
6965 | static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, | |
6966 | struct xdr_stream *xdr, | |
6967 | struct nfs4_secinfo_res *res) | |
6968 | { | |
6969 | struct compound_hdr hdr; | |
6970 | int status; | |
6971 | ||
6972 | status = decode_compound_hdr(xdr, &hdr); | |
6973 | if (status) | |
6974 | goto out; | |
6975 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
6976 | if (status) | |
6977 | goto out; | |
6978 | status = decode_putrootfh(xdr); | |
6979 | if (status) | |
6980 | goto out; | |
6981 | status = decode_secinfo(xdr, res); | |
6982 | out: | |
6983 | return status; | |
6984 | } | |
7d974794 BS |
6985 | |
6986 | /* | |
6987 | * Decode TEST_STATEID response | |
6988 | */ | |
6989 | static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, | |
6990 | struct xdr_stream *xdr, | |
6991 | struct nfs41_test_stateid_res *res) | |
6992 | { | |
6993 | struct compound_hdr hdr; | |
6994 | int status; | |
6995 | ||
6996 | status = decode_compound_hdr(xdr, &hdr); | |
6997 | if (status) | |
6998 | goto out; | |
6999 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
7000 | if (status) | |
7001 | goto out; | |
7002 | status = decode_test_stateid(xdr, res); | |
7003 | out: | |
7004 | return status; | |
7005 | } | |
9aeda35f BS |
7006 | |
7007 | /* | |
7008 | * Decode FREE_STATEID response | |
7009 | */ | |
7010 | static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, | |
7011 | struct xdr_stream *xdr, | |
7012 | struct nfs41_free_stateid_res *res) | |
7013 | { | |
7014 | struct compound_hdr hdr; | |
7015 | int status; | |
7016 | ||
7017 | status = decode_compound_hdr(xdr, &hdr); | |
7018 | if (status) | |
7019 | goto out; | |
7020 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
7021 | if (status) | |
7022 | goto out; | |
7023 | status = decode_free_stateid(xdr, res); | |
7024 | out: | |
7025 | return status; | |
7026 | } | |
99fe60d0 BH |
7027 | #endif /* CONFIG_NFS_V4_1 */ |
7028 | ||
573c4e1e CL |
7029 | /** |
7030 | * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in | |
7031 | * the local page cache. | |
7032 | * @xdr: XDR stream where entry resides | |
7033 | * @entry: buffer to fill in with entry data | |
7034 | * @plus: boolean indicating whether this should be a readdirplus entry | |
7035 | * | |
7036 | * Returns zero if successful, otherwise a negative errno value is | |
7037 | * returned. | |
7038 | * | |
7039 | * This function is not invoked during READDIR reply decoding, but | |
7040 | * rather whenever an application invokes the getdents(2) system call | |
7041 | * on a directory already in our cache. | |
7042 | */ | |
7043 | int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, | |
7044 | int plus) | |
1da177e4 | 7045 | { |
dae100c2 | 7046 | uint32_t bitmap[3] = {0}; |
1da177e4 | 7047 | uint32_t len; |
babddc72 BS |
7048 | __be32 *p = xdr_inline_decode(xdr, 4); |
7049 | if (unlikely(!p)) | |
7050 | goto out_overflow; | |
c08e76d0 | 7051 | if (*p == xdr_zero) { |
babddc72 BS |
7052 | p = xdr_inline_decode(xdr, 4); |
7053 | if (unlikely(!p)) | |
7054 | goto out_overflow; | |
c08e76d0 | 7055 | if (*p == xdr_zero) |
573c4e1e | 7056 | return -EAGAIN; |
1da177e4 | 7057 | entry->eof = 1; |
573c4e1e | 7058 | return -EBADCOOKIE; |
1da177e4 LT |
7059 | } |
7060 | ||
babddc72 BS |
7061 | p = xdr_inline_decode(xdr, 12); |
7062 | if (unlikely(!p)) | |
7063 | goto out_overflow; | |
1da177e4 LT |
7064 | entry->prev_cookie = entry->cookie; |
7065 | p = xdr_decode_hyper(p, &entry->cookie); | |
c08e76d0 | 7066 | entry->len = be32_to_cpup(p); |
babddc72 | 7067 | |
9af8c222 | 7068 | p = xdr_inline_decode(xdr, entry->len); |
babddc72 BS |
7069 | if (unlikely(!p)) |
7070 | goto out_overflow; | |
1da177e4 | 7071 | entry->name = (const char *) p; |
1da177e4 LT |
7072 | |
7073 | /* | |
7074 | * In case the server doesn't return an inode number, | |
7075 | * we fake one here. (We don't use inode number 0, | |
7076 | * since glibc seems to choke on it...) | |
7077 | */ | |
7078 | entry->ino = 1; | |
4f082222 | 7079 | entry->fattr->valid = 0; |
1da177e4 | 7080 | |
9af8c222 TM |
7081 | if (decode_attr_bitmap(xdr, bitmap) < 0) |
7082 | goto out_overflow; | |
7083 | ||
7084 | if (decode_attr_length(xdr, &len, &p) < 0) | |
7085 | goto out_overflow; | |
7086 | ||
573c4e1e | 7087 | if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, |
8b7e3f49 | 7088 | NULL, entry->server) < 0) |
9af8c222 | 7089 | goto out_overflow; |
28331a46 TM |
7090 | if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) |
7091 | entry->ino = entry->fattr->mounted_on_fileid; | |
7092 | else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) | |
9af8c222 TM |
7093 | entry->ino = entry->fattr->fileid; |
7094 | ||
0b26a0bf TM |
7095 | entry->d_type = DT_UNKNOWN; |
7096 | if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) | |
7097 | entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); | |
7098 | ||
573c4e1e | 7099 | return 0; |
babddc72 BS |
7100 | |
7101 | out_overflow: | |
7102 | print_overflow_msg(__func__, xdr); | |
573c4e1e | 7103 | return -EAGAIN; |
1da177e4 LT |
7104 | } |
7105 | ||
7106 | /* | |
7107 | * We need to translate between nfs status return values and | |
7108 | * the local errno values which may not be the same. | |
7109 | */ | |
7110 | static struct { | |
7111 | int stat; | |
7112 | int errno; | |
7113 | } nfs_errtbl[] = { | |
7114 | { NFS4_OK, 0 }, | |
856dff3d BH |
7115 | { NFS4ERR_PERM, -EPERM }, |
7116 | { NFS4ERR_NOENT, -ENOENT }, | |
7117 | { NFS4ERR_IO, -errno_NFSERR_IO}, | |
7118 | { NFS4ERR_NXIO, -ENXIO }, | |
7119 | { NFS4ERR_ACCESS, -EACCES }, | |
7120 | { NFS4ERR_EXIST, -EEXIST }, | |
7121 | { NFS4ERR_XDEV, -EXDEV }, | |
7122 | { NFS4ERR_NOTDIR, -ENOTDIR }, | |
7123 | { NFS4ERR_ISDIR, -EISDIR }, | |
7124 | { NFS4ERR_INVAL, -EINVAL }, | |
7125 | { NFS4ERR_FBIG, -EFBIG }, | |
7126 | { NFS4ERR_NOSPC, -ENOSPC }, | |
7127 | { NFS4ERR_ROFS, -EROFS }, | |
7128 | { NFS4ERR_MLINK, -EMLINK }, | |
7129 | { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, | |
7130 | { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, | |
7131 | { NFS4ERR_DQUOT, -EDQUOT }, | |
7132 | { NFS4ERR_STALE, -ESTALE }, | |
7133 | { NFS4ERR_BADHANDLE, -EBADHANDLE }, | |
856dff3d BH |
7134 | { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, |
7135 | { NFS4ERR_NOTSUPP, -ENOTSUPP }, | |
7136 | { NFS4ERR_TOOSMALL, -ETOOSMALL }, | |
fdcb4577 | 7137 | { NFS4ERR_SERVERFAULT, -EREMOTEIO }, |
856dff3d BH |
7138 | { NFS4ERR_BADTYPE, -EBADTYPE }, |
7139 | { NFS4ERR_LOCKED, -EAGAIN }, | |
856dff3d BH |
7140 | { NFS4ERR_SYMLINK, -ELOOP }, |
7141 | { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, | |
7142 | { NFS4ERR_DEADLOCK, -EDEADLK }, | |
856dff3d | 7143 | { -1, -EIO } |
1da177e4 LT |
7144 | }; |
7145 | ||
7146 | /* | |
7147 | * Convert an NFS error code to a local one. | |
7148 | * This one is used jointly by NFSv2 and NFSv3. | |
7149 | */ | |
7150 | static int | |
0a8ea437 | 7151 | nfs4_stat_to_errno(int stat) |
1da177e4 LT |
7152 | { |
7153 | int i; | |
7154 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { | |
7155 | if (nfs_errtbl[i].stat == stat) | |
7156 | return nfs_errtbl[i].errno; | |
7157 | } | |
7158 | if (stat <= 10000 || stat > 10100) { | |
7159 | /* The server is looney tunes. */ | |
fdcb4577 | 7160 | return -EREMOTEIO; |
1da177e4 LT |
7161 | } |
7162 | /* If we cannot translate the error, the recovery routines should | |
7163 | * handle it. | |
7164 | * Note: remaining NFSv4 error codes have values > 10000, so should | |
7165 | * not conflict with native Linux error codes. | |
7166 | */ | |
856dff3d | 7167 | return -stat; |
1da177e4 LT |
7168 | } |
7169 | ||
1da177e4 LT |
7170 | #define PROC(proc, argtype, restype) \ |
7171 | [NFSPROC4_CLNT_##proc] = { \ | |
7172 | .p_proc = NFSPROC4_COMPOUND, \ | |
9f06c719 | 7173 | .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ |
bf269551 | 7174 | .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ |
2bea90d4 CL |
7175 | .p_arglen = NFS4_##argtype##_sz, \ |
7176 | .p_replen = NFS4_##restype##_sz, \ | |
cc0175c1 CL |
7177 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
7178 | .p_name = #proc, \ | |
05d564fe | 7179 | } |
1da177e4 LT |
7180 | |
7181 | struct rpc_procinfo nfs4_procedures[] = { | |
7d93bd71 CL |
7182 | PROC(READ, enc_read, dec_read), |
7183 | PROC(WRITE, enc_write, dec_write), | |
7184 | PROC(COMMIT, enc_commit, dec_commit), | |
7185 | PROC(OPEN, enc_open, dec_open), | |
7186 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), | |
7187 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), | |
7188 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), | |
7189 | PROC(CLOSE, enc_close, dec_close), | |
7190 | PROC(SETATTR, enc_setattr, dec_setattr), | |
7191 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), | |
7192 | PROC(RENEW, enc_renew, dec_renew), | |
7193 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), | |
7194 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), | |
7195 | PROC(LOCK, enc_lock, dec_lock), | |
7196 | PROC(LOCKT, enc_lockt, dec_lockt), | |
7197 | PROC(LOCKU, enc_locku, dec_locku), | |
7198 | PROC(ACCESS, enc_access, dec_access), | |
7199 | PROC(GETATTR, enc_getattr, dec_getattr), | |
7200 | PROC(LOOKUP, enc_lookup, dec_lookup), | |
7201 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), | |
7202 | PROC(REMOVE, enc_remove, dec_remove), | |
7203 | PROC(RENAME, enc_rename, dec_rename), | |
7204 | PROC(LINK, enc_link, dec_link), | |
7205 | PROC(SYMLINK, enc_symlink, dec_symlink), | |
7206 | PROC(CREATE, enc_create, dec_create), | |
7207 | PROC(PATHCONF, enc_pathconf, dec_pathconf), | |
7208 | PROC(STATFS, enc_statfs, dec_statfs), | |
7209 | PROC(READLINK, enc_readlink, dec_readlink), | |
7210 | PROC(READDIR, enc_readdir, dec_readdir), | |
7211 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), | |
7212 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), | |
7213 | PROC(GETACL, enc_getacl, dec_getacl), | |
7214 | PROC(SETACL, enc_setacl, dec_setacl), | |
7215 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), | |
7216 | PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), | |
5a5ea0d4 | 7217 | PROC(SECINFO, enc_secinfo, dec_secinfo), |
99fe60d0 | 7218 | #if defined(CONFIG_NFS_V4_1) |
7d93bd71 CL |
7219 | PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), |
7220 | PROC(CREATE_SESSION, enc_create_session, dec_create_session), | |
7221 | PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), | |
7222 | PROC(SEQUENCE, enc_sequence, dec_sequence), | |
7223 | PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), | |
7224 | PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), | |
7225 | PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), | |
7226 | PROC(LAYOUTGET, enc_layoutget, dec_layoutget), | |
863a3c6c | 7227 | PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), |
cbe82603 | 7228 | PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), |
fca78d6d | 7229 | PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), |
7d974794 | 7230 | PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid), |
9aeda35f | 7231 | PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid), |
7f11d8d3 | 7232 | PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist), |
99fe60d0 | 7233 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 LT |
7234 | }; |
7235 | ||
a613fa16 | 7236 | const struct rpc_version nfs_version4 = { |
1da177e4 | 7237 | .number = 4, |
e8c96f8c | 7238 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
1da177e4 LT |
7239 | .procs = nfs4_procedures |
7240 | }; | |
7241 | ||
7242 | /* | |
7243 | * Local variables: | |
7244 | * c-basic-offset: 8 | |
7245 | * End: | |
7246 | */ |